文件操作 - index-DL5ndA4F.js

文件: /var/www/OLD/node_modules/vite-plugin-inspect/dist/client/assets/index-DL5ndA4F.js

编辑文件内容

true&&(function polyfill() {
  const relList = document.createElement("link").relList;
  if (relList && relList.supports && relList.supports("modulepreload")) {
    return;
  }
  for (const link of document.querySelectorAll('link[rel="modulepreload"]')) {
    processPreload(link);
  }
  new MutationObserver((mutations) => {
    for (const mutation of mutations) {
      if (mutation.type !== "childList") {
        continue;
      }
      for (const node of mutation.addedNodes) {
        if (node.tagName === "LINK" && node.rel === "modulepreload")
          processPreload(node);
      }
    }
  }).observe(document, { childList: true, subtree: true });
  function getFetchOpts(link) {
    const fetchOpts = {};
    if (link.integrity) fetchOpts.integrity = link.integrity;
    if (link.referrerPolicy) fetchOpts.referrerPolicy = link.referrerPolicy;
    if (link.crossOrigin === "use-credentials")
      fetchOpts.credentials = "include";
    else if (link.crossOrigin === "anonymous") fetchOpts.credentials = "omit";
    else fetchOpts.credentials = "same-origin";
    return fetchOpts;
  }
  function processPreload(link) {
    if (link.ep)
      return;
    link.ep = true;
    const fetchOpts = getFetchOpts(link);
    fetch(link.href, fetchOpts);
  }
}());
/* Injected with object hook! */

/**
* @vue/shared v3.5.13
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
/*! #__NO_SIDE_EFFECTS__ */
// @__NO_SIDE_EFFECTS__
function makeMap(str) {
  const map = /* @__PURE__ */ Object.create(null);
  for (const key of str.split(",")) map[key] = 1;
  return (val) => val in map;
}
const EMPTY_OBJ$1 = {};
const EMPTY_ARR = [];
const NOOP = () => {
};
const NO = () => false;
const isOn$1 = (key) => key.charCodeAt(0) === 111 && key.charCodeAt(1) === 110 && // uppercase letter
(key.charCodeAt(2) > 122 || key.charCodeAt(2) < 97);
const isModelListener = (key) => key.startsWith("onUpdate:");
const extend$3 = Object.assign;
const remove = (arr, el) => {
  const i = arr.indexOf(el);
  if (i > -1) {
    arr.splice(i, 1);
  }
};
const hasOwnProperty$3 = Object.prototype.hasOwnProperty;
const hasOwn$m = (val, key) => hasOwnProperty$3.call(val, key);
const isArray$k = Array.isArray;
const isMap = (val) => toTypeString(val) === "[object Map]";
const isSet = (val) => toTypeString(val) === "[object Set]";
const isDate = (val) => toTypeString(val) === "[object Date]";
const isRegExp$1 = (val) => toTypeString(val) === "[object RegExp]";
const isFunction$1 = (val) => typeof val === "function";
const isString$3 = (val) => typeof val === "string";
const isSymbol$7 = (val) => typeof val === "symbol";
const isObject$o = (val) => val !== null && typeof val === "object";
const isPromise = (val) => {
  return (isObject$o(val) || isFunction$1(val)) && isFunction$1(val.then) && isFunction$1(val.catch);
};
const objectToString$2 = Object.prototype.toString;
const toTypeString = (value) => objectToString$2.call(value);
const toRawType = (value) => {
  return toTypeString(value).slice(8, -1);
};
const isPlainObject = (val) => toTypeString(val) === "[object Object]";
const isIntegerKey = (key) => isString$3(key) && key !== "NaN" && key[0] !== "-" && "" + parseInt(key, 10) === key;
const isReservedProp = /* @__PURE__ */ makeMap(
  // the leading comma is intentional so empty string "" is also included
  ",key,ref,ref_for,ref_key,onVnodeBeforeMount,onVnodeMounted,onVnodeBeforeUpdate,onVnodeUpdated,onVnodeBeforeUnmount,onVnodeUnmounted"
);
const cacheStringFunction = (fn) => {
  const cache = /* @__PURE__ */ Object.create(null);
  return (str) => {
    const hit = cache[str];
    return hit || (cache[str] = fn(str));
  };
};
const camelizeRE = /-(\w)/g;
const camelize = cacheStringFunction(
  (str) => {
    return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : "");
  }
);
const hyphenateRE = /\B([A-Z])/g;
const hyphenate = cacheStringFunction(
  (str) => str.replace(hyphenateRE, "-$1").toLowerCase()
);
const capitalize = cacheStringFunction((str) => {
  return str.charAt(0).toUpperCase() + str.slice(1);
});
const toHandlerKey = cacheStringFunction(
  (str) => {
    const s = str ? `on${capitalize(str)}` : ``;
    return s;
  }
);
const hasChanged = (value, oldValue) => !Object.is(value, oldValue);
const invokeArrayFns = (fns, ...arg) => {
  for (let i = 0; i < fns.length; i++) {
    fns[i](...arg);
  }
};
const def = (obj, key, value, writable = false) => {
  Object.defineProperty(obj, key, {
    configurable: true,
    enumerable: false,
    writable,
    value
  });
};
const looseToNumber = (val) => {
  const n = parseFloat(val);
  return isNaN(n) ? val : n;
};
const toNumber = (val) => {
  const n = isString$3(val) ? Number(val) : NaN;
  return isNaN(n) ? val : n;
};
let _globalThis;
const getGlobalThis = () => {
  return _globalThis || (_globalThis = typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : typeof global !== "undefined" ? global : {});
};
function normalizeStyle$1(value) {
  if (isArray$k(value)) {
    const res = {};
    for (let i = 0; i < value.length; i++) {
      const item = value[i];
      const normalized = isString$3(item) ? parseStringStyle(item) : normalizeStyle$1(item);
      if (normalized) {
        for (const key in normalized) {
          res[key] = normalized[key];
        }
      }
    }
    return res;
  } else if (isString$3(value) || isObject$o(value)) {
    return value;
  }
}
const listDelimiterRE = /;(?![^(]*\))/g;
const propertyDelimiterRE = /:([^]+)/;
const styleCommentRE = /\/\*[^]*?\*\//g;
function parseStringStyle(cssText) {
  const ret = {};
  cssText.replace(styleCommentRE, "").split(listDelimiterRE).forEach((item) => {
    if (item) {
      const tmp = item.split(propertyDelimiterRE);
      tmp.length > 1 && (ret[tmp[0].trim()] = tmp[1].trim());
    }
  });
  return ret;
}
function normalizeClass(value) {
  let res = "";
  if (isString$3(value)) {
    res = value;
  } else if (isArray$k(value)) {
    for (let i = 0; i < value.length; i++) {
      const normalized = normalizeClass(value[i]);
      if (normalized) {
        res += normalized + " ";
      }
    }
  } else if (isObject$o(value)) {
    for (const name in value) {
      if (value[name]) {
        res += name + " ";
      }
    }
  }
  return res.trim();
}
function normalizeProps(props) {
  if (!props) return null;
  let { class: klass, style } = props;
  if (klass && !isString$3(klass)) {
    props.class = normalizeClass(klass);
  }
  if (style) {
    props.style = normalizeStyle$1(style);
  }
  return props;
}
const specialBooleanAttrs = `itemscope,allowfullscreen,formnovalidate,ismap,nomodule,novalidate,readonly`;
const isSpecialBooleanAttr = /* @__PURE__ */ makeMap(specialBooleanAttrs);
function includeBooleanAttr(value) {
  return !!value || value === "";
}
function looseCompareArrays(a, b) {
  if (a.length !== b.length) return false;
  let equal = true;
  for (let i = 0; equal && i < a.length; i++) {
    equal = looseEqual(a[i], b[i]);
  }
  return equal;
}
function looseEqual(a, b) {
  if (a === b) return true;
  let aValidType = isDate(a);
  let bValidType = isDate(b);
  if (aValidType || bValidType) {
    return aValidType && bValidType ? a.getTime() === b.getTime() : false;
  }
  aValidType = isSymbol$7(a);
  bValidType = isSymbol$7(b);
  if (aValidType || bValidType) {
    return a === b;
  }
  aValidType = isArray$k(a);
  bValidType = isArray$k(b);
  if (aValidType || bValidType) {
    return aValidType && bValidType ? looseCompareArrays(a, b) : false;
  }
  aValidType = isObject$o(a);
  bValidType = isObject$o(b);
  if (aValidType || bValidType) {
    if (!aValidType || !bValidType) {
      return false;
    }
    const aKeysCount = Object.keys(a).length;
    const bKeysCount = Object.keys(b).length;
    if (aKeysCount !== bKeysCount) {
      return false;
    }
    for (const key in a) {
      const aHasKey = a.hasOwnProperty(key);
      const bHasKey = b.hasOwnProperty(key);
      if (aHasKey && !bHasKey || !aHasKey && bHasKey || !looseEqual(a[key], b[key])) {
        return false;
      }
    }
  }
  return String(a) === String(b);
}
function looseIndexOf(arr, val) {
  return arr.findIndex((item) => looseEqual(item, val));
}
const isRef$1 = (val) => {
  return !!(val && val["__v_isRef"] === true);
};
const toDisplayString = (val) => {
  return isString$3(val) ? val : val == null ? "" : isArray$k(val) || isObject$o(val) && (val.toString === objectToString$2 || !isFunction$1(val.toString)) ? isRef$1(val) ? toDisplayString(val.value) : JSON.stringify(val, replacer, 2) : String(val);
};
const replacer = (_key, val) => {
  if (isRef$1(val)) {
    return replacer(_key, val.value);
  } else if (isMap(val)) {
    return {
      [`Map(${val.size})`]: [...val.entries()].reduce(
        (entries, [key, val2], i) => {
          entries[stringifySymbol(key, i) + " =>"] = val2;
          return entries;
        },
        {}
      )
    };
  } else if (isSet(val)) {
    return {
      [`Set(${val.size})`]: [...val.values()].map((v) => stringifySymbol(v))
    };
  } else if (isSymbol$7(val)) {
    return stringifySymbol(val);
  } else if (isObject$o(val) && !isArray$k(val) && !isPlainObject(val)) {
    return String(val);
  }
  return val;
};
const stringifySymbol = (v, i = "") => {
  var _a;
  return (
    // Symbol.description in es2019+ so we need to cast here to pass
    // the lib: es2016 check
    isSymbol$7(v) ? `Symbol(${(_a = v.description) != null ? _a : i})` : v
  );
};

/* Injected with object hook! */

/**
* @vue/reactivity v3.5.13
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
let activeEffectScope;
class EffectScope {
  constructor(detached = false) {
    this.detached = detached;
    this._active = true;
    this.effects = [];
    this.cleanups = [];
    this._isPaused = false;
    this.parent = activeEffectScope;
    if (!detached && activeEffectScope) {
      this.index = (activeEffectScope.scopes || (activeEffectScope.scopes = [])).push(
        this
      ) - 1;
    }
  }
  get active() {
    return this._active;
  }
  pause() {
    if (this._active) {
      this._isPaused = true;
      let i, l;
      if (this.scopes) {
        for (i = 0, l = this.scopes.length; i < l; i++) {
          this.scopes[i].pause();
        }
      }
      for (i = 0, l = this.effects.length; i < l; i++) {
        this.effects[i].pause();
      }
    }
  }
  /**
   * Resumes the effect scope, including all child scopes and effects.
   */
  resume() {
    if (this._active) {
      if (this._isPaused) {
        this._isPaused = false;
        let i, l;
        if (this.scopes) {
          for (i = 0, l = this.scopes.length; i < l; i++) {
            this.scopes[i].resume();
          }
        }
        for (i = 0, l = this.effects.length; i < l; i++) {
          this.effects[i].resume();
        }
      }
    }
  }
  run(fn) {
    if (this._active) {
      const currentEffectScope = activeEffectScope;
      try {
        activeEffectScope = this;
        return fn();
      } finally {
        activeEffectScope = currentEffectScope;
      }
    }
  }
  /**
   * This should only be called on non-detached scopes
   * @internal
   */
  on() {
    activeEffectScope = this;
  }
  /**
   * This should only be called on non-detached scopes
   * @internal
   */
  off() {
    activeEffectScope = this.parent;
  }
  stop(fromParent) {
    if (this._active) {
      this._active = false;
      let i, l;
      for (i = 0, l = this.effects.length; i < l; i++) {
        this.effects[i].stop();
      }
      this.effects.length = 0;
      for (i = 0, l = this.cleanups.length; i < l; i++) {
        this.cleanups[i]();
      }
      this.cleanups.length = 0;
      if (this.scopes) {
        for (i = 0, l = this.scopes.length; i < l; i++) {
          this.scopes[i].stop(true);
        }
        this.scopes.length = 0;
      }
      if (!this.detached && this.parent && !fromParent) {
        const last = this.parent.scopes.pop();
        if (last && last !== this) {
          this.parent.scopes[this.index] = last;
          last.index = this.index;
        }
      }
      this.parent = void 0;
    }
  }
}
function getCurrentScope() {
  return activeEffectScope;
}
function onScopeDispose(fn, failSilently = false) {
  if (activeEffectScope) {
    activeEffectScope.cleanups.push(fn);
  }
}
let activeSub;
const pausedQueueEffects = /* @__PURE__ */ new WeakSet();
class ReactiveEffect {
  constructor(fn) {
    this.fn = fn;
    this.deps = void 0;
    this.depsTail = void 0;
    this.flags = 1 | 4;
    this.next = void 0;
    this.cleanup = void 0;
    this.scheduler = void 0;
    if (activeEffectScope && activeEffectScope.active) {
      activeEffectScope.effects.push(this);
    }
  }
  pause() {
    this.flags |= 64;
  }
  resume() {
    if (this.flags & 64) {
      this.flags &= ~64;
      if (pausedQueueEffects.has(this)) {
        pausedQueueEffects.delete(this);
        this.trigger();
      }
    }
  }
  /**
   * @internal
   */
  notify() {
    if (this.flags & 2 && !(this.flags & 32)) {
      return;
    }
    if (!(this.flags & 8)) {
      batch(this);
    }
  }
  run() {
    if (!(this.flags & 1)) {
      return this.fn();
    }
    this.flags |= 2;
    cleanupEffect(this);
    prepareDeps(this);
    const prevEffect = activeSub;
    const prevShouldTrack = shouldTrack;
    activeSub = this;
    shouldTrack = true;
    try {
      return this.fn();
    } finally {
      cleanupDeps(this);
      activeSub = prevEffect;
      shouldTrack = prevShouldTrack;
      this.flags &= ~2;
    }
  }
  stop() {
    if (this.flags & 1) {
      for (let link = this.deps; link; link = link.nextDep) {
        removeSub(link);
      }
      this.deps = this.depsTail = void 0;
      cleanupEffect(this);
      this.onStop && this.onStop();
      this.flags &= ~1;
    }
  }
  trigger() {
    if (this.flags & 64) {
      pausedQueueEffects.add(this);
    } else if (this.scheduler) {
      this.scheduler();
    } else {
      this.runIfDirty();
    }
  }
  /**
   * @internal
   */
  runIfDirty() {
    if (isDirty(this)) {
      this.run();
    }
  }
  get dirty() {
    return isDirty(this);
  }
}
let batchDepth = 0;
let batchedSub;
let batchedComputed;
function batch(sub, isComputed = false) {
  sub.flags |= 8;
  if (isComputed) {
    sub.next = batchedComputed;
    batchedComputed = sub;
    return;
  }
  sub.next = batchedSub;
  batchedSub = sub;
}
function startBatch() {
  batchDepth++;
}
function endBatch() {
  if (--batchDepth > 0) {
    return;
  }
  if (batchedComputed) {
    let e = batchedComputed;
    batchedComputed = void 0;
    while (e) {
      const next = e.next;
      e.next = void 0;
      e.flags &= ~8;
      e = next;
    }
  }
  let error;
  while (batchedSub) {
    let e = batchedSub;
    batchedSub = void 0;
    while (e) {
      const next = e.next;
      e.next = void 0;
      e.flags &= ~8;
      if (e.flags & 1) {
        try {
          ;
          e.trigger();
        } catch (err) {
          if (!error) error = err;
        }
      }
      e = next;
    }
  }
  if (error) throw error;
}
function prepareDeps(sub) {
  for (let link = sub.deps; link; link = link.nextDep) {
    link.version = -1;
    link.prevActiveLink = link.dep.activeLink;
    link.dep.activeLink = link;
  }
}
function cleanupDeps(sub) {
  let head;
  let tail = sub.depsTail;
  let link = tail;
  while (link) {
    const prev = link.prevDep;
    if (link.version === -1) {
      if (link === tail) tail = prev;
      removeSub(link);
      removeDep(link);
    } else {
      head = link;
    }
    link.dep.activeLink = link.prevActiveLink;
    link.prevActiveLink = void 0;
    link = prev;
  }
  sub.deps = head;
  sub.depsTail = tail;
}
function isDirty(sub) {
  for (let link = sub.deps; link; link = link.nextDep) {
    if (link.dep.version !== link.version || link.dep.computed && (refreshComputed(link.dep.computed) || link.dep.version !== link.version)) {
      return true;
    }
  }
  if (sub._dirty) {
    return true;
  }
  return false;
}
function refreshComputed(computed2) {
  if (computed2.flags & 4 && !(computed2.flags & 16)) {
    return;
  }
  computed2.flags &= ~16;
  if (computed2.globalVersion === globalVersion) {
    return;
  }
  computed2.globalVersion = globalVersion;
  const dep = computed2.dep;
  computed2.flags |= 2;
  if (dep.version > 0 && !computed2.isSSR && computed2.deps && !isDirty(computed2)) {
    computed2.flags &= ~2;
    return;
  }
  const prevSub = activeSub;
  const prevShouldTrack = shouldTrack;
  activeSub = computed2;
  shouldTrack = true;
  try {
    prepareDeps(computed2);
    const value = computed2.fn(computed2._value);
    if (dep.version === 0 || hasChanged(value, computed2._value)) {
      computed2._value = value;
      dep.version++;
    }
  } catch (err) {
    dep.version++;
    throw err;
  } finally {
    activeSub = prevSub;
    shouldTrack = prevShouldTrack;
    cleanupDeps(computed2);
    computed2.flags &= ~2;
  }
}
function removeSub(link, soft = false) {
  const { dep, prevSub, nextSub } = link;
  if (prevSub) {
    prevSub.nextSub = nextSub;
    link.prevSub = void 0;
  }
  if (nextSub) {
    nextSub.prevSub = prevSub;
    link.nextSub = void 0;
  }
  if (dep.subs === link) {
    dep.subs = prevSub;
    if (!prevSub && dep.computed) {
      dep.computed.flags &= ~4;
      for (let l = dep.computed.deps; l; l = l.nextDep) {
        removeSub(l, true);
      }
    }
  }
  if (!soft && !--dep.sc && dep.map) {
    dep.map.delete(dep.key);
  }
}
function removeDep(link) {
  const { prevDep, nextDep } = link;
  if (prevDep) {
    prevDep.nextDep = nextDep;
    link.prevDep = void 0;
  }
  if (nextDep) {
    nextDep.prevDep = prevDep;
    link.nextDep = void 0;
  }
}
let shouldTrack = true;
const trackStack = [];
function pauseTracking() {
  trackStack.push(shouldTrack);
  shouldTrack = false;
}
function resetTracking() {
  const last = trackStack.pop();
  shouldTrack = last === void 0 ? true : last;
}
function cleanupEffect(e) {
  const { cleanup } = e;
  e.cleanup = void 0;
  if (cleanup) {
    const prevSub = activeSub;
    activeSub = void 0;
    try {
      cleanup();
    } finally {
      activeSub = prevSub;
    }
  }
}
let globalVersion = 0;
class Link {
  constructor(sub, dep) {
    this.sub = sub;
    this.dep = dep;
    this.version = dep.version;
    this.nextDep = this.prevDep = this.nextSub = this.prevSub = this.prevActiveLink = void 0;
  }
}
class Dep {
  constructor(computed2) {
    this.computed = computed2;
    this.version = 0;
    this.activeLink = void 0;
    this.subs = void 0;
    this.map = void 0;
    this.key = void 0;
    this.sc = 0;
  }
  track(debugInfo) {
    if (!activeSub || !shouldTrack || activeSub === this.computed) {
      return;
    }
    let link = this.activeLink;
    if (link === void 0 || link.sub !== activeSub) {
      link = this.activeLink = new Link(activeSub, this);
      if (!activeSub.deps) {
        activeSub.deps = activeSub.depsTail = link;
      } else {
        link.prevDep = activeSub.depsTail;
        activeSub.depsTail.nextDep = link;
        activeSub.depsTail = link;
      }
      addSub(link);
    } else if (link.version === -1) {
      link.version = this.version;
      if (link.nextDep) {
        const next = link.nextDep;
        next.prevDep = link.prevDep;
        if (link.prevDep) {
          link.prevDep.nextDep = next;
        }
        link.prevDep = activeSub.depsTail;
        link.nextDep = void 0;
        activeSub.depsTail.nextDep = link;
        activeSub.depsTail = link;
        if (activeSub.deps === link) {
          activeSub.deps = next;
        }
      }
    }
    return link;
  }
  trigger(debugInfo) {
    this.version++;
    globalVersion++;
    this.notify(debugInfo);
  }
  notify(debugInfo) {
    startBatch();
    try {
      if (false) ;
      for (let link = this.subs; link; link = link.prevSub) {
        if (link.sub.notify()) {
          ;
          link.sub.dep.notify();
        }
      }
    } finally {
      endBatch();
    }
  }
}
function addSub(link) {
  link.dep.sc++;
  if (link.sub.flags & 4) {
    const computed2 = link.dep.computed;
    if (computed2 && !link.dep.subs) {
      computed2.flags |= 4 | 16;
      for (let l = computed2.deps; l; l = l.nextDep) {
        addSub(l);
      }
    }
    const currentTail = link.dep.subs;
    if (currentTail !== link) {
      link.prevSub = currentTail;
      if (currentTail) currentTail.nextSub = link;
    }
    link.dep.subs = link;
  }
}
const targetMap = /* @__PURE__ */ new WeakMap();
const ITERATE_KEY = Symbol(
  ""
);
const MAP_KEY_ITERATE_KEY = Symbol(
  ""
);
const ARRAY_ITERATE_KEY = Symbol(
  ""
);
function track(target, type, key) {
  if (shouldTrack && activeSub) {
    let depsMap = targetMap.get(target);
    if (!depsMap) {
      targetMap.set(target, depsMap = /* @__PURE__ */ new Map());
    }
    let dep = depsMap.get(key);
    if (!dep) {
      depsMap.set(key, dep = new Dep());
      dep.map = depsMap;
      dep.key = key;
    }
    {
      dep.track();
    }
  }
}
function trigger(target, type, key, newValue, oldValue, oldTarget) {
  const depsMap = targetMap.get(target);
  if (!depsMap) {
    globalVersion++;
    return;
  }
  const run = (dep) => {
    if (dep) {
      {
        dep.trigger();
      }
    }
  };
  startBatch();
  if (type === "clear") {
    depsMap.forEach(run);
  } else {
    const targetIsArray = isArray$k(target);
    const isArrayIndex = targetIsArray && isIntegerKey(key);
    if (targetIsArray && key === "length") {
      const newLength = Number(newValue);
      depsMap.forEach((dep, key2) => {
        if (key2 === "length" || key2 === ARRAY_ITERATE_KEY || !isSymbol$7(key2) && key2 >= newLength) {
          run(dep);
        }
      });
    } else {
      if (key !== void 0 || depsMap.has(void 0)) {
        run(depsMap.get(key));
      }
      if (isArrayIndex) {
        run(depsMap.get(ARRAY_ITERATE_KEY));
      }
      switch (type) {
        case "add":
          if (!targetIsArray) {
            run(depsMap.get(ITERATE_KEY));
            if (isMap(target)) {
              run(depsMap.get(MAP_KEY_ITERATE_KEY));
            }
          } else if (isArrayIndex) {
            run(depsMap.get("length"));
          }
          break;
        case "delete":
          if (!targetIsArray) {
            run(depsMap.get(ITERATE_KEY));
            if (isMap(target)) {
              run(depsMap.get(MAP_KEY_ITERATE_KEY));
            }
          }
          break;
        case "set":
          if (isMap(target)) {
            run(depsMap.get(ITERATE_KEY));
          }
          break;
      }
    }
  }
  endBatch();
}
function getDepFromReactive(object, key) {
  const depMap = targetMap.get(object);
  return depMap && depMap.get(key);
}
function reactiveReadArray(array) {
  const raw = toRaw(array);
  if (raw === array) return raw;
  track(raw, "iterate", ARRAY_ITERATE_KEY);
  return isShallow(array) ? raw : raw.map(toReactive);
}
function shallowReadArray(arr) {
  track(arr = toRaw(arr), "iterate", ARRAY_ITERATE_KEY);
  return arr;
}
const arrayInstrumentations = {
  __proto__: null,
  [Symbol.iterator]() {
    return iterator$8(this, Symbol.iterator, toReactive);
  },
  concat(...args) {
    return reactiveReadArray(this).concat(
      ...args.map((x) => isArray$k(x) ? reactiveReadArray(x) : x)
    );
  },
  entries() {
    return iterator$8(this, "entries", (value) => {
      value[1] = toReactive(value[1]);
      return value;
    });
  },
  every(fn, thisArg) {
    return apply$8(this, "every", fn, thisArg, void 0, arguments);
  },
  filter(fn, thisArg) {
    return apply$8(this, "filter", fn, thisArg, (v) => v.map(toReactive), arguments);
  },
  find(fn, thisArg) {
    return apply$8(this, "find", fn, thisArg, toReactive, arguments);
  },
  findIndex(fn, thisArg) {
    return apply$8(this, "findIndex", fn, thisArg, void 0, arguments);
  },
  findLast(fn, thisArg) {
    return apply$8(this, "findLast", fn, thisArg, toReactive, arguments);
  },
  findLastIndex(fn, thisArg) {
    return apply$8(this, "findLastIndex", fn, thisArg, void 0, arguments);
  },
  // flat, flatMap could benefit from ARRAY_ITERATE but are not straight-forward to implement
  forEach(fn, thisArg) {
    return apply$8(this, "forEach", fn, thisArg, void 0, arguments);
  },
  includes(...args) {
    return searchProxy(this, "includes", args);
  },
  indexOf(...args) {
    return searchProxy(this, "indexOf", args);
  },
  join(separator) {
    return reactiveReadArray(this).join(separator);
  },
  // keys() iterator only reads `length`, no optimisation required
  lastIndexOf(...args) {
    return searchProxy(this, "lastIndexOf", args);
  },
  map(fn, thisArg) {
    return apply$8(this, "map", fn, thisArg, void 0, arguments);
  },
  pop() {
    return noTracking(this, "pop");
  },
  push(...args) {
    return noTracking(this, "push", args);
  },
  reduce(fn, ...args) {
    return reduce$6(this, "reduce", fn, args);
  },
  reduceRight(fn, ...args) {
    return reduce$6(this, "reduceRight", fn, args);
  },
  shift() {
    return noTracking(this, "shift");
  },
  // slice could use ARRAY_ITERATE but also seems to beg for range tracking
  some(fn, thisArg) {
    return apply$8(this, "some", fn, thisArg, void 0, arguments);
  },
  splice(...args) {
    return noTracking(this, "splice", args);
  },
  toReversed() {
    return reactiveReadArray(this).toReversed();
  },
  toSorted(comparer) {
    return reactiveReadArray(this).toSorted(comparer);
  },
  toSpliced(...args) {
    return reactiveReadArray(this).toSpliced(...args);
  },
  unshift(...args) {
    return noTracking(this, "unshift", args);
  },
  values() {
    return iterator$8(this, "values", toReactive);
  }
};
function iterator$8(self, method, wrapValue) {
  const arr = shallowReadArray(self);
  const iter = arr[method]();
  if (arr !== self && !isShallow(self)) {
    iter._next = iter.next;
    iter.next = () => {
      const result = iter._next();
      if (result.value) {
        result.value = wrapValue(result.value);
      }
      return result;
    };
  }
  return iter;
}
const arrayProto$1 = Array.prototype;
function apply$8(self, method, fn, thisArg, wrappedRetFn, args) {
  const arr = shallowReadArray(self);
  const needsWrap = arr !== self && !isShallow(self);
  const methodFn = arr[method];
  if (methodFn !== arrayProto$1[method]) {
    const result2 = methodFn.apply(self, args);
    return needsWrap ? toReactive(result2) : result2;
  }
  let wrappedFn = fn;
  if (arr !== self) {
    if (needsWrap) {
      wrappedFn = function(item, index) {
        return fn.call(this, toReactive(item), index, self);
      };
    } else if (fn.length > 2) {
      wrappedFn = function(item, index) {
        return fn.call(this, item, index, self);
      };
    }
  }
  const result = methodFn.call(arr, wrappedFn, thisArg);
  return needsWrap && wrappedRetFn ? wrappedRetFn(result) : result;
}
function reduce$6(self, method, fn, args) {
  const arr = shallowReadArray(self);
  let wrappedFn = fn;
  if (arr !== self) {
    if (!isShallow(self)) {
      wrappedFn = function(acc, item, index) {
        return fn.call(this, acc, toReactive(item), index, self);
      };
    } else if (fn.length > 3) {
      wrappedFn = function(acc, item, index) {
        return fn.call(this, acc, item, index, self);
      };
    }
  }
  return arr[method](wrappedFn, ...args);
}
function searchProxy(self, method, args) {
  const arr = toRaw(self);
  track(arr, "iterate", ARRAY_ITERATE_KEY);
  const res = arr[method](...args);
  if ((res === -1 || res === false) && isProxy(args[0])) {
    args[0] = toRaw(args[0]);
    return arr[method](...args);
  }
  return res;
}
function noTracking(self, method, args = []) {
  pauseTracking();
  startBatch();
  const res = toRaw(self)[method].apply(self, args);
  endBatch();
  resetTracking();
  return res;
}
const isNonTrackableKeys = /* @__PURE__ */ makeMap(`__proto__,__v_isRef,__isVue`);
const builtInSymbols = new Set(
  /* @__PURE__ */ Object.getOwnPropertyNames(Symbol).filter((key) => key !== "arguments" && key !== "caller").map((key) => Symbol[key]).filter(isSymbol$7)
);
function hasOwnProperty$2(key) {
  if (!isSymbol$7(key)) key = String(key);
  const obj = toRaw(this);
  track(obj, "has", key);
  return obj.hasOwnProperty(key);
}
class BaseReactiveHandler {
  constructor(_isReadonly = false, _isShallow = false) {
    this._isReadonly = _isReadonly;
    this._isShallow = _isShallow;
  }
  get(target, key, receiver) {
    if (key === "__v_skip") return target["__v_skip"];
    const isReadonly2 = this._isReadonly, isShallow2 = this._isShallow;
    if (key === "__v_isReactive") {
      return !isReadonly2;
    } else if (key === "__v_isReadonly") {
      return isReadonly2;
    } else if (key === "__v_isShallow") {
      return isShallow2;
    } else if (key === "__v_raw") {
      if (receiver === (isReadonly2 ? isShallow2 ? shallowReadonlyMap : readonlyMap : isShallow2 ? shallowReactiveMap : reactiveMap).get(target) || // receiver is not the reactive proxy, but has the same prototype
      // this means the receiver is a user proxy of the reactive proxy
      Object.getPrototypeOf(target) === Object.getPrototypeOf(receiver)) {
        return target;
      }
      return;
    }
    const targetIsArray = isArray$k(target);
    if (!isReadonly2) {
      let fn;
      if (targetIsArray && (fn = arrayInstrumentations[key])) {
        return fn;
      }
      if (key === "hasOwnProperty") {
        return hasOwnProperty$2;
      }
    }
    const res = Reflect.get(
      target,
      key,
      // if this is a proxy wrapping a ref, return methods using the raw ref
      // as receiver so that we don't have to call `toRaw` on the ref in all
      // its class methods
      isRef(target) ? target : receiver
    );
    if (isSymbol$7(key) ? builtInSymbols.has(key) : isNonTrackableKeys(key)) {
      return res;
    }
    if (!isReadonly2) {
      track(target, "get", key);
    }
    if (isShallow2) {
      return res;
    }
    if (isRef(res)) {
      return targetIsArray && isIntegerKey(key) ? res : res.value;
    }
    if (isObject$o(res)) {
      return isReadonly2 ? readonly(res) : reactive(res);
    }
    return res;
  }
}
class MutableReactiveHandler extends BaseReactiveHandler {
  constructor(isShallow2 = false) {
    super(false, isShallow2);
  }
  set(target, key, value, receiver) {
    let oldValue = target[key];
    if (!this._isShallow) {
      const isOldValueReadonly = isReadonly(oldValue);
      if (!isShallow(value) && !isReadonly(value)) {
        oldValue = toRaw(oldValue);
        value = toRaw(value);
      }
      if (!isArray$k(target) && isRef(oldValue) && !isRef(value)) {
        if (isOldValueReadonly) {
          return false;
        } else {
          oldValue.value = value;
          return true;
        }
      }
    }
    const hadKey = isArray$k(target) && isIntegerKey(key) ? Number(key) < target.length : hasOwn$m(target, key);
    const result = Reflect.set(
      target,
      key,
      value,
      isRef(target) ? target : receiver
    );
    if (target === toRaw(receiver)) {
      if (!hadKey) {
        trigger(target, "add", key, value);
      } else if (hasChanged(value, oldValue)) {
        trigger(target, "set", key, value);
      }
    }
    return result;
  }
  deleteProperty(target, key) {
    const hadKey = hasOwn$m(target, key);
    target[key];
    const result = Reflect.deleteProperty(target, key);
    if (result && hadKey) {
      trigger(target, "delete", key, void 0);
    }
    return result;
  }
  has(target, key) {
    const result = Reflect.has(target, key);
    if (!isSymbol$7(key) || !builtInSymbols.has(key)) {
      track(target, "has", key);
    }
    return result;
  }
  ownKeys(target) {
    track(
      target,
      "iterate",
      isArray$k(target) ? "length" : ITERATE_KEY
    );
    return Reflect.ownKeys(target);
  }
}
class ReadonlyReactiveHandler extends BaseReactiveHandler {
  constructor(isShallow2 = false) {
    super(true, isShallow2);
  }
  set(target, key) {
    return true;
  }
  deleteProperty(target, key) {
    return true;
  }
}
const mutableHandlers = /* @__PURE__ */ new MutableReactiveHandler();
const readonlyHandlers = /* @__PURE__ */ new ReadonlyReactiveHandler();
const shallowReactiveHandlers = /* @__PURE__ */ new MutableReactiveHandler(true);
const shallowReadonlyHandlers = /* @__PURE__ */ new ReadonlyReactiveHandler(true);
const toShallow = (value) => value;
const getProto = (v) => Reflect.getPrototypeOf(v);
function createIterableMethod(method, isReadonly2, isShallow2) {
  return function(...args) {
    const target = this["__v_raw"];
    const rawTarget = toRaw(target);
    const targetIsMap = isMap(rawTarget);
    const isPair = method === "entries" || method === Symbol.iterator && targetIsMap;
    const isKeyOnly = method === "keys" && targetIsMap;
    const innerIterator = target[method](...args);
    const wrap = isShallow2 ? toShallow : isReadonly2 ? toReadonly : toReactive;
    !isReadonly2 && track(
      rawTarget,
      "iterate",
      isKeyOnly ? MAP_KEY_ITERATE_KEY : ITERATE_KEY
    );
    return {
      // iterator protocol
      next() {
        const { value, done } = innerIterator.next();
        return done ? { value, done } : {
          value: isPair ? [wrap(value[0]), wrap(value[1])] : wrap(value),
          done
        };
      },
      // iterable protocol
      [Symbol.iterator]() {
        return this;
      }
    };
  };
}
function createReadonlyMethod(type) {
  return function(...args) {
    return type === "delete" ? false : type === "clear" ? void 0 : this;
  };
}
function createInstrumentations(readonly2, shallow) {
  const instrumentations = {
    get(key) {
      const target = this["__v_raw"];
      const rawTarget = toRaw(target);
      const rawKey = toRaw(key);
      if (!readonly2) {
        if (hasChanged(key, rawKey)) {
          track(rawTarget, "get", key);
        }
        track(rawTarget, "get", rawKey);
      }
      const { has } = getProto(rawTarget);
      const wrap = shallow ? toShallow : readonly2 ? toReadonly : toReactive;
      if (has.call(rawTarget, key)) {
        return wrap(target.get(key));
      } else if (has.call(rawTarget, rawKey)) {
        return wrap(target.get(rawKey));
      } else if (target !== rawTarget) {
        target.get(key);
      }
    },
    get size() {
      const target = this["__v_raw"];
      !readonly2 && track(toRaw(target), "iterate", ITERATE_KEY);
      return Reflect.get(target, "size", target);
    },
    has(key) {
      const target = this["__v_raw"];
      const rawTarget = toRaw(target);
      const rawKey = toRaw(key);
      if (!readonly2) {
        if (hasChanged(key, rawKey)) {
          track(rawTarget, "has", key);
        }
        track(rawTarget, "has", rawKey);
      }
      return key === rawKey ? target.has(key) : target.has(key) || target.has(rawKey);
    },
    forEach(callback, thisArg) {
      const observed = this;
      const target = observed["__v_raw"];
      const rawTarget = toRaw(target);
      const wrap = shallow ? toShallow : readonly2 ? toReadonly : toReactive;
      !readonly2 && track(rawTarget, "iterate", ITERATE_KEY);
      return target.forEach((value, key) => {
        return callback.call(thisArg, wrap(value), wrap(key), observed);
      });
    }
  };
  extend$3(
    instrumentations,
    readonly2 ? {
      add: createReadonlyMethod("add"),
      set: createReadonlyMethod("set"),
      delete: createReadonlyMethod("delete"),
      clear: createReadonlyMethod("clear")
    } : {
      add(value) {
        if (!shallow && !isShallow(value) && !isReadonly(value)) {
          value = toRaw(value);
        }
        const target = toRaw(this);
        const proto = getProto(target);
        const hadKey = proto.has.call(target, value);
        if (!hadKey) {
          target.add(value);
          trigger(target, "add", value, value);
        }
        return this;
      },
      set(key, value) {
        if (!shallow && !isShallow(value) && !isReadonly(value)) {
          value = toRaw(value);
        }
        const target = toRaw(this);
        const { has, get } = getProto(target);
        let hadKey = has.call(target, key);
        if (!hadKey) {
          key = toRaw(key);
          hadKey = has.call(target, key);
        }
        const oldValue = get.call(target, key);
        target.set(key, value);
        if (!hadKey) {
          trigger(target, "add", key, value);
        } else if (hasChanged(value, oldValue)) {
          trigger(target, "set", key, value);
        }
        return this;
      },
      delete(key) {
        const target = toRaw(this);
        const { has, get } = getProto(target);
        let hadKey = has.call(target, key);
        if (!hadKey) {
          key = toRaw(key);
          hadKey = has.call(target, key);
        }
        get ? get.call(target, key) : void 0;
        const result = target.delete(key);
        if (hadKey) {
          trigger(target, "delete", key, void 0);
        }
        return result;
      },
      clear() {
        const target = toRaw(this);
        const hadItems = target.size !== 0;
        const result = target.clear();
        if (hadItems) {
          trigger(
            target,
            "clear",
            void 0,
            void 0);
        }
        return result;
      }
    }
  );
  const iteratorMethods = [
    "keys",
    "values",
    "entries",
    Symbol.iterator
  ];
  iteratorMethods.forEach((method) => {
    instrumentations[method] = createIterableMethod(method, readonly2, shallow);
  });
  return instrumentations;
}
function createInstrumentationGetter(isReadonly2, shallow) {
  const instrumentations = createInstrumentations(isReadonly2, shallow);
  return (target, key, receiver) => {
    if (key === "__v_isReactive") {
      return !isReadonly2;
    } else if (key === "__v_isReadonly") {
      return isReadonly2;
    } else if (key === "__v_raw") {
      return target;
    }
    return Reflect.get(
      hasOwn$m(instrumentations, key) && key in target ? instrumentations : target,
      key,
      receiver
    );
  };
}
const mutableCollectionHandlers = {
  get: /* @__PURE__ */ createInstrumentationGetter(false, false)
};
const shallowCollectionHandlers = {
  get: /* @__PURE__ */ createInstrumentationGetter(false, true)
};
const readonlyCollectionHandlers = {
  get: /* @__PURE__ */ createInstrumentationGetter(true, false)
};
const shallowReadonlyCollectionHandlers = {
  get: /* @__PURE__ */ createInstrumentationGetter(true, true)
};
const reactiveMap = /* @__PURE__ */ new WeakMap();
const shallowReactiveMap = /* @__PURE__ */ new WeakMap();
const readonlyMap = /* @__PURE__ */ new WeakMap();
const shallowReadonlyMap = /* @__PURE__ */ new WeakMap();
function targetTypeMap(rawType) {
  switch (rawType) {
    case "Object":
    case "Array":
      return 1;
    case "Map":
    case "Set":
    case "WeakMap":
    case "WeakSet":
      return 2;
    default:
      return 0;
  }
}
function getTargetType(value) {
  return value["__v_skip"] || !Object.isExtensible(value) ? 0 : targetTypeMap(toRawType(value));
}
function reactive(target) {
  if (isReadonly(target)) {
    return target;
  }
  return createReactiveObject(
    target,
    false,
    mutableHandlers,
    mutableCollectionHandlers,
    reactiveMap
  );
}
function shallowReactive(target) {
  return createReactiveObject(
    target,
    false,
    shallowReactiveHandlers,
    shallowCollectionHandlers,
    shallowReactiveMap
  );
}
function readonly(target) {
  return createReactiveObject(
    target,
    true,
    readonlyHandlers,
    readonlyCollectionHandlers,
    readonlyMap
  );
}
function shallowReadonly(target) {
  return createReactiveObject(
    target,
    true,
    shallowReadonlyHandlers,
    shallowReadonlyCollectionHandlers,
    shallowReadonlyMap
  );
}
function createReactiveObject(target, isReadonly2, baseHandlers, collectionHandlers, proxyMap) {
  if (!isObject$o(target)) {
    return target;
  }
  if (target["__v_raw"] && !(isReadonly2 && target["__v_isReactive"])) {
    return target;
  }
  const existingProxy = proxyMap.get(target);
  if (existingProxy) {
    return existingProxy;
  }
  const targetType = getTargetType(target);
  if (targetType === 0) {
    return target;
  }
  const proxy = new Proxy(
    target,
    targetType === 2 ? collectionHandlers : baseHandlers
  );
  proxyMap.set(target, proxy);
  return proxy;
}
function isReactive(value) {
  if (isReadonly(value)) {
    return isReactive(value["__v_raw"]);
  }
  return !!(value && value["__v_isReactive"]);
}
function isReadonly(value) {
  return !!(value && value["__v_isReadonly"]);
}
function isShallow(value) {
  return !!(value && value["__v_isShallow"]);
}
function isProxy(value) {
  return value ? !!value["__v_raw"] : false;
}
function toRaw(observed) {
  const raw = observed && observed["__v_raw"];
  return raw ? toRaw(raw) : observed;
}
function markRaw(value) {
  if (!hasOwn$m(value, "__v_skip") && Object.isExtensible(value)) {
    def(value, "__v_skip", true);
  }
  return value;
}
const toReactive = (value) => isObject$o(value) ? reactive(value) : value;
const toReadonly = (value) => isObject$o(value) ? readonly(value) : value;
function isRef(r) {
  return r ? r["__v_isRef"] === true : false;
}
function ref(value) {
  return createRef(value, false);
}
function shallowRef(value) {
  return createRef(value, true);
}
function createRef(rawValue, shallow) {
  if (isRef(rawValue)) {
    return rawValue;
  }
  return new RefImpl(rawValue, shallow);
}
class RefImpl {
  constructor(value, isShallow2) {
    this.dep = new Dep();
    this["__v_isRef"] = true;
    this["__v_isShallow"] = false;
    this._rawValue = isShallow2 ? value : toRaw(value);
    this._value = isShallow2 ? value : toReactive(value);
    this["__v_isShallow"] = isShallow2;
  }
  get value() {
    {
      this.dep.track();
    }
    return this._value;
  }
  set value(newValue) {
    const oldValue = this._rawValue;
    const useDirectValue = this["__v_isShallow"] || isShallow(newValue) || isReadonly(newValue);
    newValue = useDirectValue ? newValue : toRaw(newValue);
    if (hasChanged(newValue, oldValue)) {
      this._rawValue = newValue;
      this._value = useDirectValue ? newValue : toReactive(newValue);
      {
        this.dep.trigger();
      }
    }
  }
}
function unref(ref2) {
  return isRef(ref2) ? ref2.value : ref2;
}
const shallowUnwrapHandlers = {
  get: (target, key, receiver) => key === "__v_raw" ? target : unref(Reflect.get(target, key, receiver)),
  set: (target, key, value, receiver) => {
    const oldValue = target[key];
    if (isRef(oldValue) && !isRef(value)) {
      oldValue.value = value;
      return true;
    } else {
      return Reflect.set(target, key, value, receiver);
    }
  }
};
function proxyRefs(objectWithRefs) {
  return isReactive(objectWithRefs) ? objectWithRefs : new Proxy(objectWithRefs, shallowUnwrapHandlers);
}
class CustomRefImpl {
  constructor(factory) {
    this["__v_isRef"] = true;
    this._value = void 0;
    const dep = this.dep = new Dep();
    const { get, set } = factory(dep.track.bind(dep), dep.trigger.bind(dep));
    this._get = get;
    this._set = set;
  }
  get value() {
    return this._value = this._get();
  }
  set value(newVal) {
    this._set(newVal);
  }
}
function customRef(factory) {
  return new CustomRefImpl(factory);
}
function toRefs(object) {
  const ret = isArray$k(object) ? new Array(object.length) : {};
  for (const key in object) {
    ret[key] = propertyToRef(object, key);
  }
  return ret;
}
class ObjectRefImpl {
  constructor(_object, _key, _defaultValue) {
    this._object = _object;
    this._key = _key;
    this._defaultValue = _defaultValue;
    this["__v_isRef"] = true;
    this._value = void 0;
  }
  get value() {
    const val = this._object[this._key];
    return this._value = val === void 0 ? this._defaultValue : val;
  }
  set value(newVal) {
    this._object[this._key] = newVal;
  }
  get dep() {
    return getDepFromReactive(toRaw(this._object), this._key);
  }
}
class GetterRefImpl {
  constructor(_getter) {
    this._getter = _getter;
    this["__v_isRef"] = true;
    this["__v_isReadonly"] = true;
    this._value = void 0;
  }
  get value() {
    return this._value = this._getter();
  }
}
function toRef$1(source, key, defaultValue) {
  if (isRef(source)) {
    return source;
  } else if (isFunction$1(source)) {
    return new GetterRefImpl(source);
  } else if (isObject$o(source) && arguments.length > 1) {
    return propertyToRef(source, key, defaultValue);
  } else {
    return ref(source);
  }
}
function propertyToRef(source, key, defaultValue) {
  const val = source[key];
  return isRef(val) ? val : new ObjectRefImpl(source, key, defaultValue);
}
class ComputedRefImpl {
  constructor(fn, setter, isSSR) {
    this.fn = fn;
    this.setter = setter;
    this._value = void 0;
    this.dep = new Dep(this);
    this.__v_isRef = true;
    this.deps = void 0;
    this.depsTail = void 0;
    this.flags = 16;
    this.globalVersion = globalVersion - 1;
    this.next = void 0;
    this.effect = this;
    this["__v_isReadonly"] = !setter;
    this.isSSR = isSSR;
  }
  /**
   * @internal
   */
  notify() {
    this.flags |= 16;
    if (!(this.flags & 8) && // avoid infinite self recursion
    activeSub !== this) {
      batch(this, true);
      return true;
    }
  }
  get value() {
    const link = this.dep.track();
    refreshComputed(this);
    if (link) {
      link.version = this.dep.version;
    }
    return this._value;
  }
  set value(newValue) {
    if (this.setter) {
      this.setter(newValue);
    }
  }
}
function computed$1(getterOrOptions, debugOptions, isSSR = false) {
  let getter;
  let setter;
  if (isFunction$1(getterOrOptions)) {
    getter = getterOrOptions;
  } else {
    getter = getterOrOptions.get;
    setter = getterOrOptions.set;
  }
  const cRef = new ComputedRefImpl(getter, setter, isSSR);
  return cRef;
}
const INITIAL_WATCHER_VALUE = {};
const cleanupMap = /* @__PURE__ */ new WeakMap();
let activeWatcher = void 0;
function onWatcherCleanup(cleanupFn, failSilently = false, owner = activeWatcher) {
  if (owner) {
    let cleanups = cleanupMap.get(owner);
    if (!cleanups) cleanupMap.set(owner, cleanups = []);
    cleanups.push(cleanupFn);
  }
}
function watch$1(source, cb, options = EMPTY_OBJ$1) {
  const { immediate, deep, once, scheduler, augmentJob, call } = options;
  const reactiveGetter = (source2) => {
    if (deep) return source2;
    if (isShallow(source2) || deep === false || deep === 0)
      return traverse(source2, 1);
    return traverse(source2);
  };
  let effect2;
  let getter;
  let cleanup;
  let boundCleanup;
  let forceTrigger = false;
  let isMultiSource = false;
  if (isRef(source)) {
    getter = () => source.value;
    forceTrigger = isShallow(source);
  } else if (isReactive(source)) {
    getter = () => reactiveGetter(source);
    forceTrigger = true;
  } else if (isArray$k(source)) {
    isMultiSource = true;
    forceTrigger = source.some((s) => isReactive(s) || isShallow(s));
    getter = () => source.map((s) => {
      if (isRef(s)) {
        return s.value;
      } else if (isReactive(s)) {
        return reactiveGetter(s);
      } else if (isFunction$1(s)) {
        return call ? call(s, 2) : s();
      } else ;
    });
  } else if (isFunction$1(source)) {
    if (cb) {
      getter = call ? () => call(source, 2) : source;
    } else {
      getter = () => {
        if (cleanup) {
          pauseTracking();
          try {
            cleanup();
          } finally {
            resetTracking();
          }
        }
        const currentEffect = activeWatcher;
        activeWatcher = effect2;
        try {
          return call ? call(source, 3, [boundCleanup]) : source(boundCleanup);
        } finally {
          activeWatcher = currentEffect;
        }
      };
    }
  } else {
    getter = NOOP;
  }
  if (cb && deep) {
    const baseGetter = getter;
    const depth = deep === true ? Infinity : deep;
    getter = () => traverse(baseGetter(), depth);
  }
  const scope = getCurrentScope();
  const watchHandle = () => {
    effect2.stop();
    if (scope && scope.active) {
      remove(scope.effects, effect2);
    }
  };
  if (once && cb) {
    const _cb = cb;
    cb = (...args) => {
      _cb(...args);
      watchHandle();
    };
  }
  let oldValue = isMultiSource ? new Array(source.length).fill(INITIAL_WATCHER_VALUE) : INITIAL_WATCHER_VALUE;
  const job = (immediateFirstRun) => {
    if (!(effect2.flags & 1) || !effect2.dirty && !immediateFirstRun) {
      return;
    }
    if (cb) {
      const newValue = effect2.run();
      if (deep || forceTrigger || (isMultiSource ? newValue.some((v, i) => hasChanged(v, oldValue[i])) : hasChanged(newValue, oldValue))) {
        if (cleanup) {
          cleanup();
        }
        const currentWatcher = activeWatcher;
        activeWatcher = effect2;
        try {
          const args = [
            newValue,
            // pass undefined as the old value when it's changed for the first time
            oldValue === INITIAL_WATCHER_VALUE ? void 0 : isMultiSource && oldValue[0] === INITIAL_WATCHER_VALUE ? [] : oldValue,
            boundCleanup
          ];
          call ? call(cb, 3, args) : (
            // @ts-expect-error
            cb(...args)
          );
          oldValue = newValue;
        } finally {
          activeWatcher = currentWatcher;
        }
      }
    } else {
      effect2.run();
    }
  };
  if (augmentJob) {
    augmentJob(job);
  }
  effect2 = new ReactiveEffect(getter);
  effect2.scheduler = scheduler ? () => scheduler(job, false) : job;
  boundCleanup = (fn) => onWatcherCleanup(fn, false, effect2);
  cleanup = effect2.onStop = () => {
    const cleanups = cleanupMap.get(effect2);
    if (cleanups) {
      if (call) {
        call(cleanups, 4);
      } else {
        for (const cleanup2 of cleanups) cleanup2();
      }
      cleanupMap.delete(effect2);
    }
  };
  if (cb) {
    if (immediate) {
      job(true);
    } else {
      oldValue = effect2.run();
    }
  } else if (scheduler) {
    scheduler(job.bind(null, true), true);
  } else {
    effect2.run();
  }
  watchHandle.pause = effect2.pause.bind(effect2);
  watchHandle.resume = effect2.resume.bind(effect2);
  watchHandle.stop = watchHandle;
  return watchHandle;
}
function traverse(value, depth = Infinity, seen) {
  if (depth <= 0 || !isObject$o(value) || value["__v_skip"]) {
    return value;
  }
  seen = seen || /* @__PURE__ */ new Set();
  if (seen.has(value)) {
    return value;
  }
  seen.add(value);
  depth--;
  if (isRef(value)) {
    traverse(value.value, depth, seen);
  } else if (isArray$k(value)) {
    for (let i = 0; i < value.length; i++) {
      traverse(value[i], depth, seen);
    }
  } else if (isSet(value) || isMap(value)) {
    value.forEach((v) => {
      traverse(v, depth, seen);
    });
  } else if (isPlainObject(value)) {
    for (const key in value) {
      traverse(value[key], depth, seen);
    }
    for (const key of Object.getOwnPropertySymbols(value)) {
      if (Object.prototype.propertyIsEnumerable.call(value, key)) {
        traverse(value[key], depth, seen);
      }
    }
  }
  return value;
}

/* Injected with object hook! */

/**
* @vue/runtime-core v3.5.13
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
const stack = [];
let isWarning = false;
function warn$1(msg, ...args) {
  if (isWarning) return;
  isWarning = true;
  pauseTracking();
  const instance = stack.length ? stack[stack.length - 1].component : null;
  const appWarnHandler = instance && instance.appContext.config.warnHandler;
  const trace = getComponentTrace();
  if (appWarnHandler) {
    callWithErrorHandling(
      appWarnHandler,
      instance,
      11,
      [
        // eslint-disable-next-line no-restricted-syntax
        msg + args.map((a) => {
          var _a, _b;
          return (_b = (_a = a.toString) == null ? void 0 : _a.call(a)) != null ? _b : JSON.stringify(a);
        }).join(""),
        instance && instance.proxy,
        trace.map(
          ({ vnode }) => `at <${formatComponentName(instance, vnode.type)}>`
        ).join("\n"),
        trace
      ]
    );
  } else {
    const warnArgs = [`[Vue warn]: ${msg}`, ...args];
    if (trace.length && // avoid spamming console during tests
    true) {
      warnArgs.push(`
`, ...formatTrace(trace));
    }
    console.warn(...warnArgs);
  }
  resetTracking();
  isWarning = false;
}
function getComponentTrace() {
  let currentVNode = stack[stack.length - 1];
  if (!currentVNode) {
    return [];
  }
  const normalizedStack = [];
  while (currentVNode) {
    const last = normalizedStack[0];
    if (last && last.vnode === currentVNode) {
      last.recurseCount++;
    } else {
      normalizedStack.push({
        vnode: currentVNode,
        recurseCount: 0
      });
    }
    const parentInstance = currentVNode.component && currentVNode.component.parent;
    currentVNode = parentInstance && parentInstance.vnode;
  }
  return normalizedStack;
}
function formatTrace(trace) {
  const logs = [];
  trace.forEach((entry, i) => {
    logs.push(...i === 0 ? [] : [`
`], ...formatTraceEntry(entry));
  });
  return logs;
}
function formatTraceEntry({ vnode, recurseCount }) {
  const postfix = recurseCount > 0 ? `... (${recurseCount} recursive calls)` : ``;
  const isRoot = vnode.component ? vnode.component.parent == null : false;
  const open = ` at <${formatComponentName(
    vnode.component,
    vnode.type,
    isRoot
  )}`;
  const close = `>` + postfix;
  return vnode.props ? [open, ...formatProps(vnode.props), close] : [open + close];
}
function formatProps(props) {
  const res = [];
  const keys = Object.keys(props);
  keys.slice(0, 3).forEach((key) => {
    res.push(...formatProp(key, props[key]));
  });
  if (keys.length > 3) {
    res.push(` ...`);
  }
  return res;
}
function formatProp(key, value, raw) {
  if (isString$3(value)) {
    value = JSON.stringify(value);
    return raw ? value : [`${key}=${value}`];
  } else if (typeof value === "number" || typeof value === "boolean" || value == null) {
    return raw ? value : [`${key}=${value}`];
  } else if (isRef(value)) {
    value = formatProp(key, toRaw(value.value), true);
    return raw ? value : [`${key}=Ref<`, value, `>`];
  } else if (isFunction$1(value)) {
    return [`${key}=fn${value.name ? `<${value.name}>` : ``}`];
  } else {
    value = toRaw(value);
    return raw ? value : [`${key}=`, value];
  }
}
function callWithErrorHandling(fn, instance, type, args) {
  try {
    return args ? fn(...args) : fn();
  } catch (err) {
    handleError(err, instance, type);
  }
}
function callWithAsyncErrorHandling(fn, instance, type, args) {
  if (isFunction$1(fn)) {
    const res = callWithErrorHandling(fn, instance, type, args);
    if (res && isPromise(res)) {
      res.catch((err) => {
        handleError(err, instance, type);
      });
    }
    return res;
  }
  if (isArray$k(fn)) {
    const values = [];
    for (let i = 0; i < fn.length; i++) {
      values.push(callWithAsyncErrorHandling(fn[i], instance, type, args));
    }
    return values;
  }
}
function handleError(err, instance, type, throwInDev = true) {
  const contextVNode = instance ? instance.vnode : null;
  const { errorHandler, throwUnhandledErrorInProduction } = instance && instance.appContext.config || EMPTY_OBJ$1;
  if (instance) {
    let cur = instance.parent;
    const exposedInstance = instance.proxy;
    const errorInfo = `https://vuejs.org/error-reference/#runtime-${type}`;
    while (cur) {
      const errorCapturedHooks = cur.ec;
      if (errorCapturedHooks) {
        for (let i = 0; i < errorCapturedHooks.length; i++) {
          if (errorCapturedHooks[i](err, exposedInstance, errorInfo) === false) {
            return;
          }
        }
      }
      cur = cur.parent;
    }
    if (errorHandler) {
      pauseTracking();
      callWithErrorHandling(errorHandler, null, 10, [
        err,
        exposedInstance,
        errorInfo
      ]);
      resetTracking();
      return;
    }
  }
  logError$1(err, type, contextVNode, throwInDev, throwUnhandledErrorInProduction);
}
function logError$1(err, type, contextVNode, throwInDev = true, throwInProd = false) {
  if (throwInProd) {
    throw err;
  } else {
    console.error(err);
  }
}
const queue$3 = [];
let flushIndex = -1;
const pendingPostFlushCbs = [];
let activePostFlushCbs = null;
let postFlushIndex = 0;
const resolvedPromise = /* @__PURE__ */ Promise.resolve();
let currentFlushPromise = null;
function nextTick(fn) {
  const p = currentFlushPromise || resolvedPromise;
  return fn ? p.then(this ? fn.bind(this) : fn) : p;
}
function findInsertionIndex$1(id) {
  let start = flushIndex + 1;
  let end = queue$3.length;
  while (start < end) {
    const middle = start + end >>> 1;
    const middleJob = queue$3[middle];
    const middleJobId = getId$1(middleJob);
    if (middleJobId < id || middleJobId === id && middleJob.flags & 2) {
      start = middle + 1;
    } else {
      end = middle;
    }
  }
  return start;
}
function queueJob(job) {
  if (!(job.flags & 1)) {
    const jobId = getId$1(job);
    const lastJob = queue$3[queue$3.length - 1];
    if (!lastJob || // fast path when the job id is larger than the tail
    !(job.flags & 2) && jobId >= getId$1(lastJob)) {
      queue$3.push(job);
    } else {
      queue$3.splice(findInsertionIndex$1(jobId), 0, job);
    }
    job.flags |= 1;
    queueFlush();
  }
}
function queueFlush() {
  if (!currentFlushPromise) {
    currentFlushPromise = resolvedPromise.then(flushJobs);
  }
}
function queuePostFlushCb(cb) {
  if (!isArray$k(cb)) {
    if (activePostFlushCbs && cb.id === -1) {
      activePostFlushCbs.splice(postFlushIndex + 1, 0, cb);
    } else if (!(cb.flags & 1)) {
      pendingPostFlushCbs.push(cb);
      cb.flags |= 1;
    }
  } else {
    pendingPostFlushCbs.push(...cb);
  }
  queueFlush();
}
function flushPreFlushCbs(instance, seen, i = flushIndex + 1) {
  for (; i < queue$3.length; i++) {
    const cb = queue$3[i];
    if (cb && cb.flags & 2) {
      if (instance && cb.id !== instance.uid) {
        continue;
      }
      queue$3.splice(i, 1);
      i--;
      if (cb.flags & 4) {
        cb.flags &= ~1;
      }
      cb();
      if (!(cb.flags & 4)) {
        cb.flags &= ~1;
      }
    }
  }
}
function flushPostFlushCbs(seen) {
  if (pendingPostFlushCbs.length) {
    const deduped = [...new Set(pendingPostFlushCbs)].sort(
      (a, b) => getId$1(a) - getId$1(b)
    );
    pendingPostFlushCbs.length = 0;
    if (activePostFlushCbs) {
      activePostFlushCbs.push(...deduped);
      return;
    }
    activePostFlushCbs = deduped;
    for (postFlushIndex = 0; postFlushIndex < activePostFlushCbs.length; postFlushIndex++) {
      const cb = activePostFlushCbs[postFlushIndex];
      if (cb.flags & 4) {
        cb.flags &= ~1;
      }
      if (!(cb.flags & 8)) cb();
      cb.flags &= ~1;
    }
    activePostFlushCbs = null;
    postFlushIndex = 0;
  }
}
const getId$1 = (job) => job.id == null ? job.flags & 2 ? -1 : Infinity : job.id;
function flushJobs(seen) {
  try {
    for (flushIndex = 0; flushIndex < queue$3.length; flushIndex++) {
      const job = queue$3[flushIndex];
      if (job && !(job.flags & 8)) {
        if (false) ;
        if (job.flags & 4) {
          job.flags &= ~1;
        }
        callWithErrorHandling(
          job,
          job.i,
          job.i ? 15 : 14
        );
        if (!(job.flags & 4)) {
          job.flags &= ~1;
        }
      }
    }
  } finally {
    for (; flushIndex < queue$3.length; flushIndex++) {
      const job = queue$3[flushIndex];
      if (job) {
        job.flags &= ~1;
      }
    }
    flushIndex = -1;
    queue$3.length = 0;
    flushPostFlushCbs();
    currentFlushPromise = null;
    if (queue$3.length || pendingPostFlushCbs.length) {
      flushJobs();
    }
  }
}
let currentRenderingInstance = null;
let currentScopeId = null;
function setCurrentRenderingInstance(instance) {
  const prev = currentRenderingInstance;
  currentRenderingInstance = instance;
  currentScopeId = instance && instance.type.__scopeId || null;
  return prev;
}
function pushScopeId(id) {
  currentScopeId = id;
}
function popScopeId() {
  currentScopeId = null;
}
const withScopeId = (_id) => withCtx;
function withCtx(fn, ctx = currentRenderingInstance, isNonScopedSlot) {
  if (!ctx) return fn;
  if (fn._n) {
    return fn;
  }
  const renderFnWithContext = (...args) => {
    if (renderFnWithContext._d) {
      setBlockTracking(-1);
    }
    const prevInstance = setCurrentRenderingInstance(ctx);
    let res;
    try {
      res = fn(...args);
    } finally {
      setCurrentRenderingInstance(prevInstance);
      if (renderFnWithContext._d) {
        setBlockTracking(1);
      }
    }
    return res;
  };
  renderFnWithContext._n = true;
  renderFnWithContext._c = true;
  renderFnWithContext._d = true;
  return renderFnWithContext;
}
function withDirectives(vnode, directives) {
  if (currentRenderingInstance === null) {
    return vnode;
  }
  const instance = getComponentPublicInstance(currentRenderingInstance);
  const bindings = vnode.dirs || (vnode.dirs = []);
  for (let i = 0; i < directives.length; i++) {
    let [dir, value, arg, modifiers = EMPTY_OBJ$1] = directives[i];
    if (dir) {
      if (isFunction$1(dir)) {
        dir = {
          mounted: dir,
          updated: dir
        };
      }
      if (dir.deep) {
        traverse(value);
      }
      bindings.push({
        dir,
        instance,
        value,
        oldValue: void 0,
        arg,
        modifiers
      });
    }
  }
  return vnode;
}
function invokeDirectiveHook(vnode, prevVNode, instance, name) {
  const bindings = vnode.dirs;
  const oldBindings = prevVNode && prevVNode.dirs;
  for (let i = 0; i < bindings.length; i++) {
    const binding = bindings[i];
    if (oldBindings) {
      binding.oldValue = oldBindings[i].value;
    }
    let hook = binding.dir[name];
    if (hook) {
      pauseTracking();
      callWithAsyncErrorHandling(hook, instance, 8, [
        vnode.el,
        binding,
        vnode,
        prevVNode
      ]);
      resetTracking();
    }
  }
}
const TeleportEndKey = Symbol("_vte");
const isTeleport = (type) => type.__isTeleport;
function setTransitionHooks(vnode, hooks) {
  if (vnode.shapeFlag & 6 && vnode.component) {
    vnode.transition = hooks;
    setTransitionHooks(vnode.component.subTree, hooks);
  } else if (vnode.shapeFlag & 128) {
    vnode.ssContent.transition = hooks.clone(vnode.ssContent);
    vnode.ssFallback.transition = hooks.clone(vnode.ssFallback);
  } else {
    vnode.transition = hooks;
  }
}
/*! #__NO_SIDE_EFFECTS__ */
// @__NO_SIDE_EFFECTS__
function defineComponent(options, extraOptions) {
  return isFunction$1(options) ? (
    // #8236: extend call and options.name access are considered side-effects
    // by Rollup, so we have to wrap it in a pure-annotated IIFE.
    /* @__PURE__ */ (() => extend$3({ name: options.name }, extraOptions, { setup: options }))()
  ) : options;
}
function markAsyncBoundary(instance) {
  instance.ids = [instance.ids[0] + instance.ids[2]++ + "-", 0, 0];
}
function setRef(rawRef, oldRawRef, parentSuspense, vnode, isUnmount = false) {
  if (isArray$k(rawRef)) {
    rawRef.forEach(
      (r, i) => setRef(
        r,
        oldRawRef && (isArray$k(oldRawRef) ? oldRawRef[i] : oldRawRef),
        parentSuspense,
        vnode,
        isUnmount
      )
    );
    return;
  }
  if (isAsyncWrapper(vnode) && !isUnmount) {
    if (vnode.shapeFlag & 512 && vnode.type.__asyncResolved && vnode.component.subTree.component) {
      setRef(rawRef, oldRawRef, parentSuspense, vnode.component.subTree);
    }
    return;
  }
  const refValue = vnode.shapeFlag & 4 ? getComponentPublicInstance(vnode.component) : vnode.el;
  const value = isUnmount ? null : refValue;
  const { i: owner, r: ref3 } = rawRef;
  const oldRef = oldRawRef && oldRawRef.r;
  const refs = owner.refs === EMPTY_OBJ$1 ? owner.refs = {} : owner.refs;
  const setupState = owner.setupState;
  const rawSetupState = toRaw(setupState);
  const canSetSetupRef = setupState === EMPTY_OBJ$1 ? () => false : (key) => {
    return hasOwn$m(rawSetupState, key);
  };
  if (oldRef != null && oldRef !== ref3) {
    if (isString$3(oldRef)) {
      refs[oldRef] = null;
      if (canSetSetupRef(oldRef)) {
        setupState[oldRef] = null;
      }
    } else if (isRef(oldRef)) {
      oldRef.value = null;
    }
  }
  if (isFunction$1(ref3)) {
    callWithErrorHandling(ref3, owner, 12, [value, refs]);
  } else {
    const _isString = isString$3(ref3);
    const _isRef = isRef(ref3);
    if (_isString || _isRef) {
      const doSet = () => {
        if (rawRef.f) {
          const existing = _isString ? canSetSetupRef(ref3) ? setupState[ref3] : refs[ref3] : ref3.value;
          if (isUnmount) {
            isArray$k(existing) && remove(existing, refValue);
          } else {
            if (!isArray$k(existing)) {
              if (_isString) {
                refs[ref3] = [refValue];
                if (canSetSetupRef(ref3)) {
                  setupState[ref3] = refs[ref3];
                }
              } else {
                ref3.value = [refValue];
                if (rawRef.k) refs[rawRef.k] = ref3.value;
              }
            } else if (!existing.includes(refValue)) {
              existing.push(refValue);
            }
          }
        } else if (_isString) {
          refs[ref3] = value;
          if (canSetSetupRef(ref3)) {
            setupState[ref3] = value;
          }
        } else if (_isRef) {
          ref3.value = value;
          if (rawRef.k) refs[rawRef.k] = value;
        } else ;
      };
      if (value) {
        doSet.id = -1;
        queuePostRenderEffect(doSet, parentSuspense);
      } else {
        doSet();
      }
    }
  }
}
getGlobalThis().requestIdleCallback || ((cb) => setTimeout(cb, 1));
getGlobalThis().cancelIdleCallback || ((id) => clearTimeout(id));
const isAsyncWrapper = (i) => !!i.type.__asyncLoader;
const isKeepAlive = (vnode) => vnode.type.__isKeepAlive;
const KeepAliveImpl = {
  name: `KeepAlive`,
  // Marker for special handling inside the renderer. We are not using a ===
  // check directly on KeepAlive in the renderer, because importing it directly
  // would prevent it from being tree-shaken.
  __isKeepAlive: true,
  props: {
    include: [String, RegExp, Array],
    exclude: [String, RegExp, Array],
    max: [String, Number]
  },
  setup(props, { slots }) {
    const instance = getCurrentInstance();
    const sharedContext = instance.ctx;
    if (!sharedContext.renderer) {
      return () => {
        const children = slots.default && slots.default();
        return children && children.length === 1 ? children[0] : children;
      };
    }
    const cache = /* @__PURE__ */ new Map();
    const keys = /* @__PURE__ */ new Set();
    let current = null;
    const parentSuspense = instance.suspense;
    const {
      renderer: {
        p: patch,
        m: move,
        um: _unmount,
        o: { createElement }
      }
    } = sharedContext;
    const storageContainer = createElement("div");
    sharedContext.activate = (vnode, container, anchor, namespace, optimized) => {
      const instance2 = vnode.component;
      move(vnode, container, anchor, 0, parentSuspense);
      patch(
        instance2.vnode,
        vnode,
        container,
        anchor,
        instance2,
        parentSuspense,
        namespace,
        vnode.slotScopeIds,
        optimized
      );
      queuePostRenderEffect(() => {
        instance2.isDeactivated = false;
        if (instance2.a) {
          invokeArrayFns(instance2.a);
        }
        const vnodeHook = vnode.props && vnode.props.onVnodeMounted;
        if (vnodeHook) {
          invokeVNodeHook(vnodeHook, instance2.parent, vnode);
        }
      }, parentSuspense);
    };
    sharedContext.deactivate = (vnode) => {
      const instance2 = vnode.component;
      invalidateMount(instance2.m);
      invalidateMount(instance2.a);
      move(vnode, storageContainer, null, 1, parentSuspense);
      queuePostRenderEffect(() => {
        if (instance2.da) {
          invokeArrayFns(instance2.da);
        }
        const vnodeHook = vnode.props && vnode.props.onVnodeUnmounted;
        if (vnodeHook) {
          invokeVNodeHook(vnodeHook, instance2.parent, vnode);
        }
        instance2.isDeactivated = true;
      }, parentSuspense);
    };
    function unmount(vnode) {
      resetShapeFlag(vnode);
      _unmount(vnode, instance, parentSuspense, true);
    }
    function pruneCache(filter) {
      cache.forEach((vnode, key) => {
        const name = getComponentName(vnode.type);
        if (name && !filter(name)) {
          pruneCacheEntry(key);
        }
      });
    }
    function pruneCacheEntry(key) {
      const cached = cache.get(key);
      if (cached && (!current || !isSameVNodeType(cached, current))) {
        unmount(cached);
      } else if (current) {
        resetShapeFlag(current);
      }
      cache.delete(key);
      keys.delete(key);
    }
    watch(
      () => [props.include, props.exclude],
      ([include, exclude]) => {
        include && pruneCache((name) => matches(include, name));
        exclude && pruneCache((name) => !matches(exclude, name));
      },
      // prune post-render after `current` has been updated
      { flush: "post", deep: true }
    );
    let pendingCacheKey = null;
    const cacheSubtree = () => {
      if (pendingCacheKey != null) {
        if (isSuspense(instance.subTree.type)) {
          queuePostRenderEffect(() => {
            cache.set(pendingCacheKey, getInnerChild(instance.subTree));
          }, instance.subTree.suspense);
        } else {
          cache.set(pendingCacheKey, getInnerChild(instance.subTree));
        }
      }
    };
    onMounted(cacheSubtree);
    onUpdated(cacheSubtree);
    onBeforeUnmount(() => {
      cache.forEach((cached) => {
        const { subTree, suspense } = instance;
        const vnode = getInnerChild(subTree);
        if (cached.type === vnode.type && cached.key === vnode.key) {
          resetShapeFlag(vnode);
          const da = vnode.component.da;
          da && queuePostRenderEffect(da, suspense);
          return;
        }
        unmount(cached);
      });
    });
    return () => {
      pendingCacheKey = null;
      if (!slots.default) {
        return current = null;
      }
      const children = slots.default();
      const rawVNode = children[0];
      if (children.length > 1) {
        current = null;
        return children;
      } else if (!isVNode(rawVNode) || !(rawVNode.shapeFlag & 4) && !(rawVNode.shapeFlag & 128)) {
        current = null;
        return rawVNode;
      }
      let vnode = getInnerChild(rawVNode);
      if (vnode.type === Comment) {
        current = null;
        return vnode;
      }
      const comp = vnode.type;
      const name = getComponentName(
        isAsyncWrapper(vnode) ? vnode.type.__asyncResolved || {} : comp
      );
      const { include, exclude, max } = props;
      if (include && (!name || !matches(include, name)) || exclude && name && matches(exclude, name)) {
        vnode.shapeFlag &= ~256;
        current = vnode;
        return rawVNode;
      }
      const key = vnode.key == null ? comp : vnode.key;
      const cachedVNode = cache.get(key);
      if (vnode.el) {
        vnode = cloneVNode(vnode);
        if (rawVNode.shapeFlag & 128) {
          rawVNode.ssContent = vnode;
        }
      }
      pendingCacheKey = key;
      if (cachedVNode) {
        vnode.el = cachedVNode.el;
        vnode.component = cachedVNode.component;
        if (vnode.transition) {
          setTransitionHooks(vnode, vnode.transition);
        }
        vnode.shapeFlag |= 512;
        keys.delete(key);
        keys.add(key);
      } else {
        keys.add(key);
        if (max && keys.size > parseInt(max, 10)) {
          pruneCacheEntry(keys.values().next().value);
        }
      }
      vnode.shapeFlag |= 256;
      current = vnode;
      return isSuspense(rawVNode.type) ? rawVNode : vnode;
    };
  }
};
const KeepAlive = KeepAliveImpl;
function matches(pattern, name) {
  if (isArray$k(pattern)) {
    return pattern.some((p) => matches(p, name));
  } else if (isString$3(pattern)) {
    return pattern.split(",").includes(name);
  } else if (isRegExp$1(pattern)) {
    pattern.lastIndex = 0;
    return pattern.test(name);
  }
  return false;
}
function onActivated(hook, target) {
  registerKeepAliveHook(hook, "a", target);
}
function onDeactivated(hook, target) {
  registerKeepAliveHook(hook, "da", target);
}
function registerKeepAliveHook(hook, type, target = currentInstance) {
  const wrappedHook = hook.__wdc || (hook.__wdc = () => {
    let current = target;
    while (current) {
      if (current.isDeactivated) {
        return;
      }
      current = current.parent;
    }
    return hook();
  });
  injectHook(type, wrappedHook, target);
  if (target) {
    let current = target.parent;
    while (current && current.parent) {
      if (isKeepAlive(current.parent.vnode)) {
        injectToKeepAliveRoot(wrappedHook, type, target, current);
      }
      current = current.parent;
    }
  }
}
function injectToKeepAliveRoot(hook, type, target, keepAliveRoot) {
  const injected = injectHook(
    type,
    hook,
    keepAliveRoot,
    true
    /* prepend */
  );
  onUnmounted(() => {
    remove(keepAliveRoot[type], injected);
  }, target);
}
function resetShapeFlag(vnode) {
  vnode.shapeFlag &= ~256;
  vnode.shapeFlag &= ~512;
}
function getInnerChild(vnode) {
  return vnode.shapeFlag & 128 ? vnode.ssContent : vnode;
}
function injectHook(type, hook, target = currentInstance, prepend = false) {
  if (target) {
    const hooks = target[type] || (target[type] = []);
    const wrappedHook = hook.__weh || (hook.__weh = (...args) => {
      pauseTracking();
      const reset = setCurrentInstance(target);
      const res = callWithAsyncErrorHandling(hook, target, type, args);
      reset();
      resetTracking();
      return res;
    });
    if (prepend) {
      hooks.unshift(wrappedHook);
    } else {
      hooks.push(wrappedHook);
    }
    return wrappedHook;
  }
}
const createHook = (lifecycle) => (hook, target = currentInstance) => {
  if (!isInSSRComponentSetup || lifecycle === "sp") {
    injectHook(lifecycle, (...args) => hook(...args), target);
  }
};
const onBeforeMount = createHook("bm");
const onMounted = createHook("m");
const onBeforeUpdate = createHook(
  "bu"
);
const onUpdated = createHook("u");
const onBeforeUnmount = createHook(
  "bum"
);
const onUnmounted = createHook("um");
const onServerPrefetch = createHook(
  "sp"
);
const onRenderTriggered = createHook("rtg");
const onRenderTracked = createHook("rtc");
function onErrorCaptured(hook, target = currentInstance) {
  injectHook("ec", hook, target);
}
const COMPONENTS = "components";
function resolveComponent(name, maybeSelfReference) {
  return resolveAsset(COMPONENTS, name, true, maybeSelfReference) || name;
}
const NULL_DYNAMIC_COMPONENT = Symbol.for("v-ndc");
function resolveDynamicComponent(component) {
  if (isString$3(component)) {
    return resolveAsset(COMPONENTS, component, false) || component;
  } else {
    return component || NULL_DYNAMIC_COMPONENT;
  }
}
function resolveAsset(type, name, warnMissing = true, maybeSelfReference = false) {
  const instance = currentRenderingInstance || currentInstance;
  if (instance) {
    const Component = instance.type;
    {
      const selfName = getComponentName(
        Component,
        false
      );
      if (selfName && (selfName === name || selfName === camelize(name) || selfName === capitalize(camelize(name)))) {
        return Component;
      }
    }
    const res = (
      // local registration
      // check instance[type] first which is resolved for options API
      resolve$1(instance[type] || Component[type], name) || // global registration
      resolve$1(instance.appContext[type], name)
    );
    if (!res && maybeSelfReference) {
      return Component;
    }
    return res;
  }
}
function resolve$1(registry, name) {
  return registry && (registry[name] || registry[camelize(name)] || registry[capitalize(camelize(name))]);
}
function renderList(source, renderItem, cache, index) {
  let ret;
  const cached = cache;
  const sourceIsArray = isArray$k(source);
  if (sourceIsArray || isString$3(source)) {
    const sourceIsReactiveArray = sourceIsArray && isReactive(source);
    let needsWrap = false;
    if (sourceIsReactiveArray) {
      needsWrap = !isShallow(source);
      source = shallowReadArray(source);
    }
    ret = new Array(source.length);
    for (let i = 0, l = source.length; i < l; i++) {
      ret[i] = renderItem(
        needsWrap ? toReactive(source[i]) : source[i],
        i,
        void 0,
        cached
      );
    }
  } else if (typeof source === "number") {
    ret = new Array(source);
    for (let i = 0; i < source; i++) {
      ret[i] = renderItem(i + 1, i, void 0, cached);
    }
  } else if (isObject$o(source)) {
    if (source[Symbol.iterator]) {
      ret = Array.from(
        source,
        (item, i) => renderItem(item, i, void 0, cached)
      );
    } else {
      const keys = Object.keys(source);
      ret = new Array(keys.length);
      for (let i = 0, l = keys.length; i < l; i++) {
        const key = keys[i];
        ret[i] = renderItem(source[key], key, i, cached);
      }
    }
  } else {
    ret = [];
  }
  return ret;
}
function renderSlot(slots, name, props = {}, fallback, noSlotted) {
  if (currentRenderingInstance.ce || currentRenderingInstance.parent && isAsyncWrapper(currentRenderingInstance.parent) && currentRenderingInstance.parent.ce) {
    if (name !== "default") props.name = name;
    return openBlock(), createBlock(
      Fragment,
      null,
      [createVNode("slot", props, fallback && fallback())],
      64
    );
  }
  let slot = slots[name];
  if (slot && slot._c) {
    slot._d = false;
  }
  openBlock();
  const validSlotContent = slot && ensureValidVNode(slot(props));
  const slotKey = props.key || // slot content array of a dynamic conditional slot may have a branch
  // key attached in the `createSlots` helper, respect that
  validSlotContent && validSlotContent.key;
  const rendered = createBlock(
    Fragment,
    {
      key: (slotKey && !isSymbol$7(slotKey) ? slotKey : `_${name}`) + // #7256 force differentiate fallback content from actual content
      (!validSlotContent && fallback ? "_fb" : "")
    },
    validSlotContent || (fallback ? fallback() : []),
    validSlotContent && slots._ === 1 ? 64 : -2
  );
  if (rendered.scopeId) {
    rendered.slotScopeIds = [rendered.scopeId + "-s"];
  }
  if (slot && slot._c) {
    slot._d = true;
  }
  return rendered;
}
function ensureValidVNode(vnodes) {
  return vnodes.some((child) => {
    if (!isVNode(child)) return true;
    if (child.type === Comment) return false;
    if (child.type === Fragment && !ensureValidVNode(child.children))
      return false;
    return true;
  }) ? vnodes : null;
}
const getPublicInstance = (i) => {
  if (!i) return null;
  if (isStatefulComponent(i)) return getComponentPublicInstance(i);
  return getPublicInstance(i.parent);
};
const publicPropertiesMap = (
  // Move PURE marker to new line to workaround compiler discarding it
  // due to type annotation
  /* @__PURE__ */ extend$3(/* @__PURE__ */ Object.create(null), {
    $: (i) => i,
    $el: (i) => i.vnode.el,
    $data: (i) => i.data,
    $props: (i) => i.props,
    $attrs: (i) => i.attrs,
    $slots: (i) => i.slots,
    $refs: (i) => i.refs,
    $parent: (i) => getPublicInstance(i.parent),
    $root: (i) => getPublicInstance(i.root),
    $host: (i) => i.ce,
    $emit: (i) => i.emit,
    $options: (i) => resolveMergedOptions(i) ,
    $forceUpdate: (i) => i.f || (i.f = () => {
      queueJob(i.update);
    }),
    $nextTick: (i) => i.n || (i.n = nextTick.bind(i.proxy)),
    $watch: (i) => instanceWatch.bind(i) 
  })
);
const hasSetupBinding = (state, key) => state !== EMPTY_OBJ$1 && !state.__isScriptSetup && hasOwn$m(state, key);
const PublicInstanceProxyHandlers = {
  get({ _: instance }, key) {
    if (key === "__v_skip") {
      return true;
    }
    const { ctx, setupState, data, props, accessCache, type, appContext } = instance;
    let normalizedProps;
    if (key[0] !== "$") {
      const n = accessCache[key];
      if (n !== void 0) {
        switch (n) {
          case 1:
            return setupState[key];
          case 2:
            return data[key];
          case 4:
            return ctx[key];
          case 3:
            return props[key];
        }
      } else if (hasSetupBinding(setupState, key)) {
        accessCache[key] = 1;
        return setupState[key];
      } else if (data !== EMPTY_OBJ$1 && hasOwn$m(data, key)) {
        accessCache[key] = 2;
        return data[key];
      } else if (
        // only cache other properties when instance has declared (thus stable)
        // props
        (normalizedProps = instance.propsOptions[0]) && hasOwn$m(normalizedProps, key)
      ) {
        accessCache[key] = 3;
        return props[key];
      } else if (ctx !== EMPTY_OBJ$1 && hasOwn$m(ctx, key)) {
        accessCache[key] = 4;
        return ctx[key];
      } else if (shouldCacheAccess) {
        accessCache[key] = 0;
      }
    }
    const publicGetter = publicPropertiesMap[key];
    let cssModule, globalProperties;
    if (publicGetter) {
      if (key === "$attrs") {
        track(instance.attrs, "get", "");
      }
      return publicGetter(instance);
    } else if (
      // css module (injected by vue-loader)
      (cssModule = type.__cssModules) && (cssModule = cssModule[key])
    ) {
      return cssModule;
    } else if (ctx !== EMPTY_OBJ$1 && hasOwn$m(ctx, key)) {
      accessCache[key] = 4;
      return ctx[key];
    } else if (
      // global properties
      globalProperties = appContext.config.globalProperties, hasOwn$m(globalProperties, key)
    ) {
      {
        return globalProperties[key];
      }
    } else ;
  },
  set({ _: instance }, key, value) {
    const { data, setupState, ctx } = instance;
    if (hasSetupBinding(setupState, key)) {
      setupState[key] = value;
      return true;
    } else if (data !== EMPTY_OBJ$1 && hasOwn$m(data, key)) {
      data[key] = value;
      return true;
    } else if (hasOwn$m(instance.props, key)) {
      return false;
    }
    if (key[0] === "$" && key.slice(1) in instance) {
      return false;
    } else {
      {
        ctx[key] = value;
      }
    }
    return true;
  },
  has({
    _: { data, setupState, accessCache, ctx, appContext, propsOptions }
  }, key) {
    let normalizedProps;
    return !!accessCache[key] || data !== EMPTY_OBJ$1 && hasOwn$m(data, key) || hasSetupBinding(setupState, key) || (normalizedProps = propsOptions[0]) && hasOwn$m(normalizedProps, key) || hasOwn$m(ctx, key) || hasOwn$m(publicPropertiesMap, key) || hasOwn$m(appContext.config.globalProperties, key);
  },
  defineProperty(target, key, descriptor) {
    if (descriptor.get != null) {
      target._.accessCache[key] = 0;
    } else if (hasOwn$m(descriptor, "value")) {
      this.set(target, key, descriptor.value, null);
    }
    return Reflect.defineProperty(target, key, descriptor);
  }
};
function normalizePropsOrEmits(props) {
  return isArray$k(props) ? props.reduce(
    (normalized, p) => (normalized[p] = null, normalized),
    {}
  ) : props;
}
function withAsyncContext(getAwaitable) {
  const ctx = getCurrentInstance();
  let awaitable = getAwaitable();
  unsetCurrentInstance();
  if (isPromise(awaitable)) {
    awaitable = awaitable.catch((e) => {
      setCurrentInstance(ctx);
      throw e;
    });
  }
  return [awaitable, () => setCurrentInstance(ctx)];
}
let shouldCacheAccess = true;
function applyOptions(instance) {
  const options = resolveMergedOptions(instance);
  const publicThis = instance.proxy;
  const ctx = instance.ctx;
  shouldCacheAccess = false;
  if (options.beforeCreate) {
    callHook(options.beforeCreate, instance, "bc");
  }
  const {
    // state
    data: dataOptions,
    computed: computedOptions,
    methods,
    watch: watchOptions,
    provide: provideOptions,
    inject: injectOptions,
    // lifecycle
    created,
    beforeMount,
    mounted,
    beforeUpdate,
    updated,
    activated,
    deactivated,
    beforeDestroy,
    beforeUnmount,
    destroyed,
    unmounted,
    render,
    renderTracked,
    renderTriggered,
    errorCaptured,
    serverPrefetch,
    // public API
    expose,
    inheritAttrs,
    // assets
    components,
    directives,
    filters
  } = options;
  const checkDuplicateProperties = null;
  if (injectOptions) {
    resolveInjections(injectOptions, ctx, checkDuplicateProperties);
  }
  if (methods) {
    for (const key in methods) {
      const methodHandler = methods[key];
      if (isFunction$1(methodHandler)) {
        {
          ctx[key] = methodHandler.bind(publicThis);
        }
      }
    }
  }
  if (dataOptions) {
    const data = dataOptions.call(publicThis, publicThis);
    if (!isObject$o(data)) ; else {
      instance.data = reactive(data);
    }
  }
  shouldCacheAccess = true;
  if (computedOptions) {
    for (const key in computedOptions) {
      const opt = computedOptions[key];
      const get = isFunction$1(opt) ? opt.bind(publicThis, publicThis) : isFunction$1(opt.get) ? opt.get.bind(publicThis, publicThis) : NOOP;
      const set = !isFunction$1(opt) && isFunction$1(opt.set) ? opt.set.bind(publicThis) : NOOP;
      const c = computed({
        get,
        set
      });
      Object.defineProperty(ctx, key, {
        enumerable: true,
        configurable: true,
        get: () => c.value,
        set: (v) => c.value = v
      });
    }
  }
  if (watchOptions) {
    for (const key in watchOptions) {
      createWatcher(watchOptions[key], ctx, publicThis, key);
    }
  }
  if (provideOptions) {
    const provides = isFunction$1(provideOptions) ? provideOptions.call(publicThis) : provideOptions;
    Reflect.ownKeys(provides).forEach((key) => {
      provide(key, provides[key]);
    });
  }
  if (created) {
    callHook(created, instance, "c");
  }
  function registerLifecycleHook(register, hook) {
    if (isArray$k(hook)) {
      hook.forEach((_hook) => register(_hook.bind(publicThis)));
    } else if (hook) {
      register(hook.bind(publicThis));
    }
  }
  registerLifecycleHook(onBeforeMount, beforeMount);
  registerLifecycleHook(onMounted, mounted);
  registerLifecycleHook(onBeforeUpdate, beforeUpdate);
  registerLifecycleHook(onUpdated, updated);
  registerLifecycleHook(onActivated, activated);
  registerLifecycleHook(onDeactivated, deactivated);
  registerLifecycleHook(onErrorCaptured, errorCaptured);
  registerLifecycleHook(onRenderTracked, renderTracked);
  registerLifecycleHook(onRenderTriggered, renderTriggered);
  registerLifecycleHook(onBeforeUnmount, beforeUnmount);
  registerLifecycleHook(onUnmounted, unmounted);
  registerLifecycleHook(onServerPrefetch, serverPrefetch);
  if (isArray$k(expose)) {
    if (expose.length) {
      const exposed = instance.exposed || (instance.exposed = {});
      expose.forEach((key) => {
        Object.defineProperty(exposed, key, {
          get: () => publicThis[key],
          set: (val) => publicThis[key] = val
        });
      });
    } else if (!instance.exposed) {
      instance.exposed = {};
    }
  }
  if (render && instance.render === NOOP) {
    instance.render = render;
  }
  if (inheritAttrs != null) {
    instance.inheritAttrs = inheritAttrs;
  }
  if (components) instance.components = components;
  if (directives) instance.directives = directives;
  if (serverPrefetch) {
    markAsyncBoundary(instance);
  }
}
function resolveInjections(injectOptions, ctx, checkDuplicateProperties = NOOP) {
  if (isArray$k(injectOptions)) {
    injectOptions = normalizeInject(injectOptions);
  }
  for (const key in injectOptions) {
    const opt = injectOptions[key];
    let injected;
    if (isObject$o(opt)) {
      if ("default" in opt) {
        injected = inject(
          opt.from || key,
          opt.default,
          true
        );
      } else {
        injected = inject(opt.from || key);
      }
    } else {
      injected = inject(opt);
    }
    if (isRef(injected)) {
      Object.defineProperty(ctx, key, {
        enumerable: true,
        configurable: true,
        get: () => injected.value,
        set: (v) => injected.value = v
      });
    } else {
      ctx[key] = injected;
    }
  }
}
function callHook(hook, instance, type) {
  callWithAsyncErrorHandling(
    isArray$k(hook) ? hook.map((h2) => h2.bind(instance.proxy)) : hook.bind(instance.proxy),
    instance,
    type
  );
}
function createWatcher(raw, ctx, publicThis, key) {
  let getter = key.includes(".") ? createPathGetter(publicThis, key) : () => publicThis[key];
  if (isString$3(raw)) {
    const handler = ctx[raw];
    if (isFunction$1(handler)) {
      {
        watch(getter, handler);
      }
    }
  } else if (isFunction$1(raw)) {
    {
      watch(getter, raw.bind(publicThis));
    }
  } else if (isObject$o(raw)) {
    if (isArray$k(raw)) {
      raw.forEach((r) => createWatcher(r, ctx, publicThis, key));
    } else {
      const handler = isFunction$1(raw.handler) ? raw.handler.bind(publicThis) : ctx[raw.handler];
      if (isFunction$1(handler)) {
        watch(getter, handler, raw);
      }
    }
  } else ;
}
function resolveMergedOptions(instance) {
  const base = instance.type;
  const { mixins, extends: extendsOptions } = base;
  const {
    mixins: globalMixins,
    optionsCache: cache,
    config: { optionMergeStrategies }
  } = instance.appContext;
  const cached = cache.get(base);
  let resolved;
  if (cached) {
    resolved = cached;
  } else if (!globalMixins.length && !mixins && !extendsOptions) {
    {
      resolved = base;
    }
  } else {
    resolved = {};
    if (globalMixins.length) {
      globalMixins.forEach(
        (m) => mergeOptions$2(resolved, m, optionMergeStrategies, true)
      );
    }
    mergeOptions$2(resolved, base, optionMergeStrategies);
  }
  if (isObject$o(base)) {
    cache.set(base, resolved);
  }
  return resolved;
}
function mergeOptions$2(to, from, strats, asMixin = false) {
  const { mixins, extends: extendsOptions } = from;
  if (extendsOptions) {
    mergeOptions$2(to, extendsOptions, strats, true);
  }
  if (mixins) {
    mixins.forEach(
      (m) => mergeOptions$2(to, m, strats, true)
    );
  }
  for (const key in from) {
    if (asMixin && key === "expose") ; else {
      const strat = internalOptionMergeStrats[key] || strats && strats[key];
      to[key] = strat ? strat(to[key], from[key]) : from[key];
    }
  }
  return to;
}
const internalOptionMergeStrats = {
  data: mergeDataFn,
  props: mergeEmitsOrPropsOptions,
  emits: mergeEmitsOrPropsOptions,
  // objects
  methods: mergeObjectOptions,
  computed: mergeObjectOptions,
  // lifecycle
  beforeCreate: mergeAsArray,
  created: mergeAsArray,
  beforeMount: mergeAsArray,
  mounted: mergeAsArray,
  beforeUpdate: mergeAsArray,
  updated: mergeAsArray,
  beforeDestroy: mergeAsArray,
  beforeUnmount: mergeAsArray,
  destroyed: mergeAsArray,
  unmounted: mergeAsArray,
  activated: mergeAsArray,
  deactivated: mergeAsArray,
  errorCaptured: mergeAsArray,
  serverPrefetch: mergeAsArray,
  // assets
  components: mergeObjectOptions,
  directives: mergeObjectOptions,
  // watch
  watch: mergeWatchOptions,
  // provide / inject
  provide: mergeDataFn,
  inject: mergeInject
};
function mergeDataFn(to, from) {
  if (!from) {
    return to;
  }
  if (!to) {
    return from;
  }
  return function mergedDataFn() {
    return extend$3(
      isFunction$1(to) ? to.call(this, this) : to,
      isFunction$1(from) ? from.call(this, this) : from
    );
  };
}
function mergeInject(to, from) {
  return mergeObjectOptions(normalizeInject(to), normalizeInject(from));
}
function normalizeInject(raw) {
  if (isArray$k(raw)) {
    const res = {};
    for (let i = 0; i < raw.length; i++) {
      res[raw[i]] = raw[i];
    }
    return res;
  }
  return raw;
}
function mergeAsArray(to, from) {
  return to ? [...new Set([].concat(to, from))] : from;
}
function mergeObjectOptions(to, from) {
  return to ? extend$3(/* @__PURE__ */ Object.create(null), to, from) : from;
}
function mergeEmitsOrPropsOptions(to, from) {
  if (to) {
    if (isArray$k(to) && isArray$k(from)) {
      return [.../* @__PURE__ */ new Set([...to, ...from])];
    }
    return extend$3(
      /* @__PURE__ */ Object.create(null),
      normalizePropsOrEmits(to),
      normalizePropsOrEmits(from != null ? from : {})
    );
  } else {
    return from;
  }
}
function mergeWatchOptions(to, from) {
  if (!to) return from;
  if (!from) return to;
  const merged = extend$3(/* @__PURE__ */ Object.create(null), to);
  for (const key in from) {
    merged[key] = mergeAsArray(to[key], from[key]);
  }
  return merged;
}
function createAppContext() {
  return {
    app: null,
    config: {
      isNativeTag: NO,
      performance: false,
      globalProperties: {},
      optionMergeStrategies: {},
      errorHandler: void 0,
      warnHandler: void 0,
      compilerOptions: {}
    },
    mixins: [],
    components: {},
    directives: {},
    provides: /* @__PURE__ */ Object.create(null),
    optionsCache: /* @__PURE__ */ new WeakMap(),
    propsCache: /* @__PURE__ */ new WeakMap(),
    emitsCache: /* @__PURE__ */ new WeakMap()
  };
}
let uid$1$2 = 0;
function createAppAPI(render, hydrate) {
  return function createApp(rootComponent, rootProps = null) {
    if (!isFunction$1(rootComponent)) {
      rootComponent = extend$3({}, rootComponent);
    }
    if (rootProps != null && !isObject$o(rootProps)) {
      rootProps = null;
    }
    const context = createAppContext();
    const installedPlugins = /* @__PURE__ */ new WeakSet();
    const pluginCleanupFns = [];
    let isMounted = false;
    const app = context.app = {
      _uid: uid$1$2++,
      _component: rootComponent,
      _props: rootProps,
      _container: null,
      _context: context,
      _instance: null,
      version: version$2,
      get config() {
        return context.config;
      },
      set config(v) {
      },
      use(plugin, ...options) {
        if (installedPlugins.has(plugin)) ; else if (plugin && isFunction$1(plugin.install)) {
          installedPlugins.add(plugin);
          plugin.install(app, ...options);
        } else if (isFunction$1(plugin)) {
          installedPlugins.add(plugin);
          plugin(app, ...options);
        } else ;
        return app;
      },
      mixin(mixin) {
        {
          if (!context.mixins.includes(mixin)) {
            context.mixins.push(mixin);
          }
        }
        return app;
      },
      component(name, component) {
        if (!component) {
          return context.components[name];
        }
        context.components[name] = component;
        return app;
      },
      directive(name, directive) {
        if (!directive) {
          return context.directives[name];
        }
        context.directives[name] = directive;
        return app;
      },
      mount(rootContainer, isHydrate, namespace) {
        if (!isMounted) {
          const vnode = app._ceVNode || createVNode(rootComponent, rootProps);
          vnode.appContext = context;
          if (namespace === true) {
            namespace = "svg";
          } else if (namespace === false) {
            namespace = void 0;
          }
          if (isHydrate && hydrate) {
            hydrate(vnode, rootContainer);
          } else {
            render(vnode, rootContainer, namespace);
          }
          isMounted = true;
          app._container = rootContainer;
          rootContainer.__vue_app__ = app;
          return getComponentPublicInstance(vnode.component);
        }
      },
      onUnmount(cleanupFn) {
        pluginCleanupFns.push(cleanupFn);
      },
      unmount() {
        if (isMounted) {
          callWithAsyncErrorHandling(
            pluginCleanupFns,
            app._instance,
            16
          );
          render(null, app._container);
          delete app._container.__vue_app__;
        }
      },
      provide(key, value) {
        context.provides[key] = value;
        return app;
      },
      runWithContext(fn) {
        const lastApp = currentApp;
        currentApp = app;
        try {
          return fn();
        } finally {
          currentApp = lastApp;
        }
      }
    };
    return app;
  };
}
let currentApp = null;
function provide(key, value) {
  if (!currentInstance) ; else {
    let provides = currentInstance.provides;
    const parentProvides = currentInstance.parent && currentInstance.parent.provides;
    if (parentProvides === provides) {
      provides = currentInstance.provides = Object.create(parentProvides);
    }
    provides[key] = value;
  }
}
function inject(key, defaultValue, treatDefaultAsFactory = false) {
  const instance = currentInstance || currentRenderingInstance;
  if (instance || currentApp) {
    const provides = currentApp ? currentApp._context.provides : instance ? instance.parent == null ? instance.vnode.appContext && instance.vnode.appContext.provides : instance.parent.provides : void 0;
    if (provides && key in provides) {
      return provides[key];
    } else if (arguments.length > 1) {
      return treatDefaultAsFactory && isFunction$1(defaultValue) ? defaultValue.call(instance && instance.proxy) : defaultValue;
    } else ;
  }
}
const internalObjectProto = {};
const createInternalObject = () => Object.create(internalObjectProto);
const isInternalObject = (obj) => Object.getPrototypeOf(obj) === internalObjectProto;
function initProps$1(instance, rawProps, isStateful, isSSR = false) {
  const props = {};
  const attrs = createInternalObject();
  instance.propsDefaults = /* @__PURE__ */ Object.create(null);
  setFullProps(instance, rawProps, props, attrs);
  for (const key in instance.propsOptions[0]) {
    if (!(key in props)) {
      props[key] = void 0;
    }
  }
  if (isStateful) {
    instance.props = isSSR ? props : shallowReactive(props);
  } else {
    if (!instance.type.props) {
      instance.props = attrs;
    } else {
      instance.props = props;
    }
  }
  instance.attrs = attrs;
}
function updateProps$2(instance, rawProps, rawPrevProps, optimized) {
  const {
    props,
    attrs,
    vnode: { patchFlag }
  } = instance;
  const rawCurrentProps = toRaw(props);
  const [options] = instance.propsOptions;
  let hasAttrsChanged = false;
  if (
    // always force full diff in dev
    // - #1942 if hmr is enabled with sfc component
    // - vite#872 non-sfc component used by sfc component
    (optimized || patchFlag > 0) && !(patchFlag & 16)
  ) {
    if (patchFlag & 8) {
      const propsToUpdate = instance.vnode.dynamicProps;
      for (let i = 0; i < propsToUpdate.length; i++) {
        let key = propsToUpdate[i];
        if (isEmitListener(instance.emitsOptions, key)) {
          continue;
        }
        const value = rawProps[key];
        if (options) {
          if (hasOwn$m(attrs, key)) {
            if (value !== attrs[key]) {
              attrs[key] = value;
              hasAttrsChanged = true;
            }
          } else {
            const camelizedKey = camelize(key);
            props[camelizedKey] = resolvePropValue(
              options,
              rawCurrentProps,
              camelizedKey,
              value,
              instance,
              false
            );
          }
        } else {
          if (value !== attrs[key]) {
            attrs[key] = value;
            hasAttrsChanged = true;
          }
        }
      }
    }
  } else {
    if (setFullProps(instance, rawProps, props, attrs)) {
      hasAttrsChanged = true;
    }
    let kebabKey;
    for (const key in rawCurrentProps) {
      if (!rawProps || // for camelCase
      !hasOwn$m(rawProps, key) && // it's possible the original props was passed in as kebab-case
      // and converted to camelCase (#955)
      ((kebabKey = hyphenate(key)) === key || !hasOwn$m(rawProps, kebabKey))) {
        if (options) {
          if (rawPrevProps && // for camelCase
          (rawPrevProps[key] !== void 0 || // for kebab-case
          rawPrevProps[kebabKey] !== void 0)) {
            props[key] = resolvePropValue(
              options,
              rawCurrentProps,
              key,
              void 0,
              instance,
              true
            );
          }
        } else {
          delete props[key];
        }
      }
    }
    if (attrs !== rawCurrentProps) {
      for (const key in attrs) {
        if (!rawProps || !hasOwn$m(rawProps, key) && true) {
          delete attrs[key];
          hasAttrsChanged = true;
        }
      }
    }
  }
  if (hasAttrsChanged) {
    trigger(instance.attrs, "set", "");
  }
}
function setFullProps(instance, rawProps, props, attrs) {
  const [options, needCastKeys] = instance.propsOptions;
  let hasAttrsChanged = false;
  let rawCastValues;
  if (rawProps) {
    for (let key in rawProps) {
      if (isReservedProp(key)) {
        continue;
      }
      const value = rawProps[key];
      let camelKey;
      if (options && hasOwn$m(options, camelKey = camelize(key))) {
        if (!needCastKeys || !needCastKeys.includes(camelKey)) {
          props[camelKey] = value;
        } else {
          (rawCastValues || (rawCastValues = {}))[camelKey] = value;
        }
      } else if (!isEmitListener(instance.emitsOptions, key)) {
        if (!(key in attrs) || value !== attrs[key]) {
          attrs[key] = value;
          hasAttrsChanged = true;
        }
      }
    }
  }
  if (needCastKeys) {
    const rawCurrentProps = toRaw(props);
    const castValues = rawCastValues || EMPTY_OBJ$1;
    for (let i = 0; i < needCastKeys.length; i++) {
      const key = needCastKeys[i];
      props[key] = resolvePropValue(
        options,
        rawCurrentProps,
        key,
        castValues[key],
        instance,
        !hasOwn$m(castValues, key)
      );
    }
  }
  return hasAttrsChanged;
}
function resolvePropValue(options, props, key, value, instance, isAbsent) {
  const opt = options[key];
  if (opt != null) {
    const hasDefault = hasOwn$m(opt, "default");
    if (hasDefault && value === void 0) {
      const defaultValue = opt.default;
      if (opt.type !== Function && !opt.skipFactory && isFunction$1(defaultValue)) {
        const { propsDefaults } = instance;
        if (key in propsDefaults) {
          value = propsDefaults[key];
        } else {
          const reset = setCurrentInstance(instance);
          value = propsDefaults[key] = defaultValue.call(
            null,
            props
          );
          reset();
        }
      } else {
        value = defaultValue;
      }
      if (instance.ce) {
        instance.ce._setProp(key, value);
      }
    }
    if (opt[
      0
      /* shouldCast */
    ]) {
      if (isAbsent && !hasDefault) {
        value = false;
      } else if (opt[
        1
        /* shouldCastTrue */
      ] && (value === "" || value === hyphenate(key))) {
        value = true;
      }
    }
  }
  return value;
}
const mixinPropsCache = /* @__PURE__ */ new WeakMap();
function normalizePropsOptions(comp, appContext, asMixin = false) {
  const cache = asMixin ? mixinPropsCache : appContext.propsCache;
  const cached = cache.get(comp);
  if (cached) {
    return cached;
  }
  const raw = comp.props;
  const normalized = {};
  const needCastKeys = [];
  let hasExtends = false;
  if (!isFunction$1(comp)) {
    const extendProps = (raw2) => {
      hasExtends = true;
      const [props, keys] = normalizePropsOptions(raw2, appContext, true);
      extend$3(normalized, props);
      if (keys) needCastKeys.push(...keys);
    };
    if (!asMixin && appContext.mixins.length) {
      appContext.mixins.forEach(extendProps);
    }
    if (comp.extends) {
      extendProps(comp.extends);
    }
    if (comp.mixins) {
      comp.mixins.forEach(extendProps);
    }
  }
  if (!raw && !hasExtends) {
    if (isObject$o(comp)) {
      cache.set(comp, EMPTY_ARR);
    }
    return EMPTY_ARR;
  }
  if (isArray$k(raw)) {
    for (let i = 0; i < raw.length; i++) {
      const normalizedKey = camelize(raw[i]);
      if (validatePropName(normalizedKey)) {
        normalized[normalizedKey] = EMPTY_OBJ$1;
      }
    }
  } else if (raw) {
    for (const key in raw) {
      const normalizedKey = camelize(key);
      if (validatePropName(normalizedKey)) {
        const opt = raw[key];
        const prop = normalized[normalizedKey] = isArray$k(opt) || isFunction$1(opt) ? { type: opt } : extend$3({}, opt);
        const propType = prop.type;
        let shouldCast = false;
        let shouldCastTrue = true;
        if (isArray$k(propType)) {
          for (let index = 0; index < propType.length; ++index) {
            const type = propType[index];
            const typeName = isFunction$1(type) && type.name;
            if (typeName === "Boolean") {
              shouldCast = true;
              break;
            } else if (typeName === "String") {
              shouldCastTrue = false;
            }
          }
        } else {
          shouldCast = isFunction$1(propType) && propType.name === "Boolean";
        }
        prop[
          0
          /* shouldCast */
        ] = shouldCast;
        prop[
          1
          /* shouldCastTrue */
        ] = shouldCastTrue;
        if (shouldCast || hasOwn$m(prop, "default")) {
          needCastKeys.push(normalizedKey);
        }
      }
    }
  }
  const res = [normalized, needCastKeys];
  if (isObject$o(comp)) {
    cache.set(comp, res);
  }
  return res;
}
function validatePropName(key) {
  if (key[0] !== "$" && !isReservedProp(key)) {
    return true;
  }
  return false;
}
const isInternalKey = (key) => key[0] === "_" || key === "$stable";
const normalizeSlotValue = (value) => isArray$k(value) ? value.map(normalizeVNode) : [normalizeVNode(value)];
const normalizeSlot$1 = (key, rawSlot, ctx) => {
  if (rawSlot._n) {
    return rawSlot;
  }
  const normalized = withCtx((...args) => {
    if (false) ;
    return normalizeSlotValue(rawSlot(...args));
  }, ctx);
  normalized._c = false;
  return normalized;
};
const normalizeObjectSlots = (rawSlots, slots, instance) => {
  const ctx = rawSlots._ctx;
  for (const key in rawSlots) {
    if (isInternalKey(key)) continue;
    const value = rawSlots[key];
    if (isFunction$1(value)) {
      slots[key] = normalizeSlot$1(key, value, ctx);
    } else if (value != null) {
      const normalized = normalizeSlotValue(value);
      slots[key] = () => normalized;
    }
  }
};
const normalizeVNodeSlots = (instance, children) => {
  const normalized = normalizeSlotValue(children);
  instance.slots.default = () => normalized;
};
const assignSlots = (slots, children, optimized) => {
  for (const key in children) {
    if (optimized || key !== "_") {
      slots[key] = children[key];
    }
  }
};
const initSlots = (instance, children, optimized) => {
  const slots = instance.slots = createInternalObject();
  if (instance.vnode.shapeFlag & 32) {
    const type = children._;
    if (type) {
      assignSlots(slots, children, optimized);
      if (optimized) {
        def(slots, "_", type, true);
      }
    } else {
      normalizeObjectSlots(children, slots);
    }
  } else if (children) {
    normalizeVNodeSlots(instance, children);
  }
};
const updateSlots = (instance, children, optimized) => {
  const { vnode, slots } = instance;
  let needDeletionCheck = true;
  let deletionComparisonTarget = EMPTY_OBJ$1;
  if (vnode.shapeFlag & 32) {
    const type = children._;
    if (type) {
      if (optimized && type === 1) {
        needDeletionCheck = false;
      } else {
        assignSlots(slots, children, optimized);
      }
    } else {
      needDeletionCheck = !children.$stable;
      normalizeObjectSlots(children, slots);
    }
    deletionComparisonTarget = children;
  } else if (children) {
    normalizeVNodeSlots(instance, children);
    deletionComparisonTarget = { default: 1 };
  }
  if (needDeletionCheck) {
    for (const key in slots) {
      if (!isInternalKey(key) && deletionComparisonTarget[key] == null) {
        delete slots[key];
      }
    }
  }
};
const queuePostRenderEffect = queueEffectWithSuspense;
function createRenderer(options) {
  return baseCreateRenderer(options);
}
function baseCreateRenderer(options, createHydrationFns) {
  const target = getGlobalThis();
  target.__VUE__ = true;
  const {
    insert: hostInsert,
    remove: hostRemove,
    patchProp: hostPatchProp,
    createElement: hostCreateElement,
    createText: hostCreateText,
    createComment: hostCreateComment,
    setText: hostSetText,
    setElementText: hostSetElementText,
    parentNode: hostParentNode,
    nextSibling: hostNextSibling,
    setScopeId: hostSetScopeId = NOOP,
    insertStaticContent: hostInsertStaticContent
  } = options;
  const patch = (n1, n2, container, anchor = null, parentComponent = null, parentSuspense = null, namespace = void 0, slotScopeIds = null, optimized = !!n2.dynamicChildren) => {
    if (n1 === n2) {
      return;
    }
    if (n1 && !isSameVNodeType(n1, n2)) {
      anchor = getNextHostNode(n1);
      unmount(n1, parentComponent, parentSuspense, true);
      n1 = null;
    }
    if (n2.patchFlag === -2) {
      optimized = false;
      n2.dynamicChildren = null;
    }
    const { type, ref: ref3, shapeFlag } = n2;
    switch (type) {
      case Text$1:
        processText(n1, n2, container, anchor);
        break;
      case Comment:
        processCommentNode(n1, n2, container, anchor);
        break;
      case Static:
        if (n1 == null) {
          mountStaticNode(n2, container, anchor, namespace);
        }
        break;
      case Fragment:
        processFragment(
          n1,
          n2,
          container,
          anchor,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
        break;
      default:
        if (shapeFlag & 1) {
          processElement(
            n1,
            n2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
        } else if (shapeFlag & 6) {
          processComponent(
            n1,
            n2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
        } else if (shapeFlag & 64) {
          type.process(
            n1,
            n2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized,
            internals
          );
        } else if (shapeFlag & 128) {
          type.process(
            n1,
            n2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized,
            internals
          );
        } else ;
    }
    if (ref3 != null && parentComponent) {
      setRef(ref3, n1 && n1.ref, parentSuspense, n2 || n1, !n2);
    }
  };
  const processText = (n1, n2, container, anchor) => {
    if (n1 == null) {
      hostInsert(
        n2.el = hostCreateText(n2.children),
        container,
        anchor
      );
    } else {
      const el = n2.el = n1.el;
      if (n2.children !== n1.children) {
        hostSetText(el, n2.children);
      }
    }
  };
  const processCommentNode = (n1, n2, container, anchor) => {
    if (n1 == null) {
      hostInsert(
        n2.el = hostCreateComment(n2.children || ""),
        container,
        anchor
      );
    } else {
      n2.el = n1.el;
    }
  };
  const mountStaticNode = (n2, container, anchor, namespace) => {
    [n2.el, n2.anchor] = hostInsertStaticContent(
      n2.children,
      container,
      anchor,
      namespace,
      n2.el,
      n2.anchor
    );
  };
  const moveStaticNode = ({ el, anchor }, container, nextSibling) => {
    let next;
    while (el && el !== anchor) {
      next = hostNextSibling(el);
      hostInsert(el, container, nextSibling);
      el = next;
    }
    hostInsert(anchor, container, nextSibling);
  };
  const removeStaticNode = ({ el, anchor }) => {
    let next;
    while (el && el !== anchor) {
      next = hostNextSibling(el);
      hostRemove(el);
      el = next;
    }
    hostRemove(anchor);
  };
  const processElement = (n1, n2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    if (n2.type === "svg") {
      namespace = "svg";
    } else if (n2.type === "math") {
      namespace = "mathml";
    }
    if (n1 == null) {
      mountElement(
        n2,
        container,
        anchor,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized
      );
    } else {
      patchElement(
        n1,
        n2,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized
      );
    }
  };
  const mountElement = (vnode, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    let el;
    let vnodeHook;
    const { props, shapeFlag, transition, dirs } = vnode;
    el = vnode.el = hostCreateElement(
      vnode.type,
      namespace,
      props && props.is,
      props
    );
    if (shapeFlag & 8) {
      hostSetElementText(el, vnode.children);
    } else if (shapeFlag & 16) {
      mountChildren(
        vnode.children,
        el,
        null,
        parentComponent,
        parentSuspense,
        resolveChildrenNamespace(vnode, namespace),
        slotScopeIds,
        optimized
      );
    }
    if (dirs) {
      invokeDirectiveHook(vnode, null, parentComponent, "created");
    }
    setScopeId(el, vnode, vnode.scopeId, slotScopeIds, parentComponent);
    if (props) {
      for (const key in props) {
        if (key !== "value" && !isReservedProp(key)) {
          hostPatchProp(el, key, null, props[key], namespace, parentComponent);
        }
      }
      if ("value" in props) {
        hostPatchProp(el, "value", null, props.value, namespace);
      }
      if (vnodeHook = props.onVnodeBeforeMount) {
        invokeVNodeHook(vnodeHook, parentComponent, vnode);
      }
    }
    if (dirs) {
      invokeDirectiveHook(vnode, null, parentComponent, "beforeMount");
    }
    const needCallTransitionHooks = needTransition(parentSuspense, transition);
    if (needCallTransitionHooks) {
      transition.beforeEnter(el);
    }
    hostInsert(el, container, anchor);
    if ((vnodeHook = props && props.onVnodeMounted) || needCallTransitionHooks || dirs) {
      queuePostRenderEffect(() => {
        vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
        needCallTransitionHooks && transition.enter(el);
        dirs && invokeDirectiveHook(vnode, null, parentComponent, "mounted");
      }, parentSuspense);
    }
  };
  const setScopeId = (el, vnode, scopeId, slotScopeIds, parentComponent) => {
    if (scopeId) {
      hostSetScopeId(el, scopeId);
    }
    if (slotScopeIds) {
      for (let i = 0; i < slotScopeIds.length; i++) {
        hostSetScopeId(el, slotScopeIds[i]);
      }
    }
    if (parentComponent) {
      let subTree = parentComponent.subTree;
      if (vnode === subTree || isSuspense(subTree.type) && (subTree.ssContent === vnode || subTree.ssFallback === vnode)) {
        const parentVNode = parentComponent.vnode;
        setScopeId(
          el,
          parentVNode,
          parentVNode.scopeId,
          parentVNode.slotScopeIds,
          parentComponent.parent
        );
      }
    }
  };
  const mountChildren = (children, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized, start = 0) => {
    for (let i = start; i < children.length; i++) {
      const child = children[i] = optimized ? cloneIfMounted(children[i]) : normalizeVNode(children[i]);
      patch(
        null,
        child,
        container,
        anchor,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized
      );
    }
  };
  const patchElement = (n1, n2, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    const el = n2.el = n1.el;
    let { patchFlag, dynamicChildren, dirs } = n2;
    patchFlag |= n1.patchFlag & 16;
    const oldProps = n1.props || EMPTY_OBJ$1;
    const newProps = n2.props || EMPTY_OBJ$1;
    let vnodeHook;
    parentComponent && toggleRecurse(parentComponent, false);
    if (vnodeHook = newProps.onVnodeBeforeUpdate) {
      invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
    }
    if (dirs) {
      invokeDirectiveHook(n2, n1, parentComponent, "beforeUpdate");
    }
    parentComponent && toggleRecurse(parentComponent, true);
    if (oldProps.innerHTML && newProps.innerHTML == null || oldProps.textContent && newProps.textContent == null) {
      hostSetElementText(el, "");
    }
    if (dynamicChildren) {
      patchBlockChildren(
        n1.dynamicChildren,
        dynamicChildren,
        el,
        parentComponent,
        parentSuspense,
        resolveChildrenNamespace(n2, namespace),
        slotScopeIds
      );
    } else if (!optimized) {
      patchChildren(
        n1,
        n2,
        el,
        null,
        parentComponent,
        parentSuspense,
        resolveChildrenNamespace(n2, namespace),
        slotScopeIds,
        false
      );
    }
    if (patchFlag > 0) {
      if (patchFlag & 16) {
        patchProps(el, oldProps, newProps, parentComponent, namespace);
      } else {
        if (patchFlag & 2) {
          if (oldProps.class !== newProps.class) {
            hostPatchProp(el, "class", null, newProps.class, namespace);
          }
        }
        if (patchFlag & 4) {
          hostPatchProp(el, "style", oldProps.style, newProps.style, namespace);
        }
        if (patchFlag & 8) {
          const propsToUpdate = n2.dynamicProps;
          for (let i = 0; i < propsToUpdate.length; i++) {
            const key = propsToUpdate[i];
            const prev = oldProps[key];
            const next = newProps[key];
            if (next !== prev || key === "value") {
              hostPatchProp(el, key, prev, next, namespace, parentComponent);
            }
          }
        }
      }
      if (patchFlag & 1) {
        if (n1.children !== n2.children) {
          hostSetElementText(el, n2.children);
        }
      }
    } else if (!optimized && dynamicChildren == null) {
      patchProps(el, oldProps, newProps, parentComponent, namespace);
    }
    if ((vnodeHook = newProps.onVnodeUpdated) || dirs) {
      queuePostRenderEffect(() => {
        vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, n2, n1);
        dirs && invokeDirectiveHook(n2, n1, parentComponent, "updated");
      }, parentSuspense);
    }
  };
  const patchBlockChildren = (oldChildren, newChildren, fallbackContainer, parentComponent, parentSuspense, namespace, slotScopeIds) => {
    for (let i = 0; i < newChildren.length; i++) {
      const oldVNode = oldChildren[i];
      const newVNode = newChildren[i];
      const container = (
        // oldVNode may be an errored async setup() component inside Suspense
        // which will not have a mounted element
        oldVNode.el && // - In the case of a Fragment, we need to provide the actual parent
        // of the Fragment itself so it can move its children.
        (oldVNode.type === Fragment || // - In the case of different nodes, there is going to be a replacement
        // which also requires the correct parent container
        !isSameVNodeType(oldVNode, newVNode) || // - In the case of a component, it could contain anything.
        oldVNode.shapeFlag & (6 | 64)) ? hostParentNode(oldVNode.el) : (
          // In other cases, the parent container is not actually used so we
          // just pass the block element here to avoid a DOM parentNode call.
          fallbackContainer
        )
      );
      patch(
        oldVNode,
        newVNode,
        container,
        null,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        true
      );
    }
  };
  const patchProps = (el, oldProps, newProps, parentComponent, namespace) => {
    if (oldProps !== newProps) {
      if (oldProps !== EMPTY_OBJ$1) {
        for (const key in oldProps) {
          if (!isReservedProp(key) && !(key in newProps)) {
            hostPatchProp(
              el,
              key,
              oldProps[key],
              null,
              namespace,
              parentComponent
            );
          }
        }
      }
      for (const key in newProps) {
        if (isReservedProp(key)) continue;
        const next = newProps[key];
        const prev = oldProps[key];
        if (next !== prev && key !== "value") {
          hostPatchProp(el, key, prev, next, namespace, parentComponent);
        }
      }
      if ("value" in newProps) {
        hostPatchProp(el, "value", oldProps.value, newProps.value, namespace);
      }
    }
  };
  const processFragment = (n1, n2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    const fragmentStartAnchor = n2.el = n1 ? n1.el : hostCreateText("");
    const fragmentEndAnchor = n2.anchor = n1 ? n1.anchor : hostCreateText("");
    let { patchFlag, dynamicChildren, slotScopeIds: fragmentSlotScopeIds } = n2;
    if (fragmentSlotScopeIds) {
      slotScopeIds = slotScopeIds ? slotScopeIds.concat(fragmentSlotScopeIds) : fragmentSlotScopeIds;
    }
    if (n1 == null) {
      hostInsert(fragmentStartAnchor, container, anchor);
      hostInsert(fragmentEndAnchor, container, anchor);
      mountChildren(
        // #10007
        // such fragment like `<></>` will be compiled into
        // a fragment which doesn't have a children.
        // In this case fallback to an empty array
        n2.children || [],
        container,
        fragmentEndAnchor,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized
      );
    } else {
      if (patchFlag > 0 && patchFlag & 64 && dynamicChildren && // #2715 the previous fragment could've been a BAILed one as a result
      // of renderSlot() with no valid children
      n1.dynamicChildren) {
        patchBlockChildren(
          n1.dynamicChildren,
          dynamicChildren,
          container,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds
        );
        if (
          // #2080 if the stable fragment has a key, it's a <template v-for> that may
          //  get moved around. Make sure all root level vnodes inherit el.
          // #2134 or if it's a component root, it may also get moved around
          // as the component is being moved.
          n2.key != null || parentComponent && n2 === parentComponent.subTree
        ) {
          traverseStaticChildren(
            n1,
            n2,
            true
            /* shallow */
          );
        }
      } else {
        patchChildren(
          n1,
          n2,
          container,
          fragmentEndAnchor,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
      }
    }
  };
  const processComponent = (n1, n2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    n2.slotScopeIds = slotScopeIds;
    if (n1 == null) {
      if (n2.shapeFlag & 512) {
        parentComponent.ctx.activate(
          n2,
          container,
          anchor,
          namespace,
          optimized
        );
      } else {
        mountComponent(
          n2,
          container,
          anchor,
          parentComponent,
          parentSuspense,
          namespace,
          optimized
        );
      }
    } else {
      updateComponent(n1, n2, optimized);
    }
  };
  const mountComponent = (initialVNode, container, anchor, parentComponent, parentSuspense, namespace, optimized) => {
    const instance = initialVNode.component = createComponentInstance(
      initialVNode,
      parentComponent,
      parentSuspense
    );
    if (isKeepAlive(initialVNode)) {
      instance.ctx.renderer = internals;
    }
    {
      setupComponent(instance, false, optimized);
    }
    if (instance.asyncDep) {
      parentSuspense && parentSuspense.registerDep(instance, setupRenderEffect, optimized);
      if (!initialVNode.el) {
        const placeholder = instance.subTree = createVNode(Comment);
        processCommentNode(null, placeholder, container, anchor);
      }
    } else {
      setupRenderEffect(
        instance,
        initialVNode,
        container,
        anchor,
        parentSuspense,
        namespace,
        optimized
      );
    }
  };
  const updateComponent = (n1, n2, optimized) => {
    const instance = n2.component = n1.component;
    if (shouldUpdateComponent(n1, n2, optimized)) {
      if (instance.asyncDep && !instance.asyncResolved) {
        updateComponentPreRender(instance, n2, optimized);
        return;
      } else {
        instance.next = n2;
        instance.update();
      }
    } else {
      n2.el = n1.el;
      instance.vnode = n2;
    }
  };
  const setupRenderEffect = (instance, initialVNode, container, anchor, parentSuspense, namespace, optimized) => {
    const componentUpdateFn = () => {
      if (!instance.isMounted) {
        let vnodeHook;
        const { el, props } = initialVNode;
        const { bm, m, parent, root, type } = instance;
        const isAsyncWrapperVNode = isAsyncWrapper(initialVNode);
        toggleRecurse(instance, false);
        if (bm) {
          invokeArrayFns(bm);
        }
        if (!isAsyncWrapperVNode && (vnodeHook = props && props.onVnodeBeforeMount)) {
          invokeVNodeHook(vnodeHook, parent, initialVNode);
        }
        toggleRecurse(instance, true);
        if (el && hydrateNode) {
          const hydrateSubTree = () => {
            instance.subTree = renderComponentRoot(instance);
            hydrateNode(
              el,
              instance.subTree,
              instance,
              parentSuspense,
              null
            );
          };
          if (isAsyncWrapperVNode && type.__asyncHydrate) {
            type.__asyncHydrate(
              el,
              instance,
              hydrateSubTree
            );
          } else {
            hydrateSubTree();
          }
        } else {
          if (root.ce) {
            root.ce._injectChildStyle(type);
          }
          const subTree = instance.subTree = renderComponentRoot(instance);
          patch(
            null,
            subTree,
            container,
            anchor,
            instance,
            parentSuspense,
            namespace
          );
          initialVNode.el = subTree.el;
        }
        if (m) {
          queuePostRenderEffect(m, parentSuspense);
        }
        if (!isAsyncWrapperVNode && (vnodeHook = props && props.onVnodeMounted)) {
          const scopedInitialVNode = initialVNode;
          queuePostRenderEffect(
            () => invokeVNodeHook(vnodeHook, parent, scopedInitialVNode),
            parentSuspense
          );
        }
        if (initialVNode.shapeFlag & 256 || parent && isAsyncWrapper(parent.vnode) && parent.vnode.shapeFlag & 256) {
          instance.a && queuePostRenderEffect(instance.a, parentSuspense);
        }
        instance.isMounted = true;
        initialVNode = container = anchor = null;
      } else {
        let { next, bu, u, parent, vnode } = instance;
        {
          const nonHydratedAsyncRoot = locateNonHydratedAsyncRoot(instance);
          if (nonHydratedAsyncRoot) {
            if (next) {
              next.el = vnode.el;
              updateComponentPreRender(instance, next, optimized);
            }
            nonHydratedAsyncRoot.asyncDep.then(() => {
              if (!instance.isUnmounted) {
                componentUpdateFn();
              }
            });
            return;
          }
        }
        let originNext = next;
        let vnodeHook;
        toggleRecurse(instance, false);
        if (next) {
          next.el = vnode.el;
          updateComponentPreRender(instance, next, optimized);
        } else {
          next = vnode;
        }
        if (bu) {
          invokeArrayFns(bu);
        }
        if (vnodeHook = next.props && next.props.onVnodeBeforeUpdate) {
          invokeVNodeHook(vnodeHook, parent, next, vnode);
        }
        toggleRecurse(instance, true);
        const nextTree = renderComponentRoot(instance);
        const prevTree = instance.subTree;
        instance.subTree = nextTree;
        patch(
          prevTree,
          nextTree,
          // parent may have changed if it's in a teleport
          hostParentNode(prevTree.el),
          // anchor may have changed if it's in a fragment
          getNextHostNode(prevTree),
          instance,
          parentSuspense,
          namespace
        );
        next.el = nextTree.el;
        if (originNext === null) {
          updateHOCHostEl(instance, nextTree.el);
        }
        if (u) {
          queuePostRenderEffect(u, parentSuspense);
        }
        if (vnodeHook = next.props && next.props.onVnodeUpdated) {
          queuePostRenderEffect(
            () => invokeVNodeHook(vnodeHook, parent, next, vnode),
            parentSuspense
          );
        }
      }
    };
    instance.scope.on();
    const effect2 = instance.effect = new ReactiveEffect(componentUpdateFn);
    instance.scope.off();
    const update = instance.update = effect2.run.bind(effect2);
    const job = instance.job = effect2.runIfDirty.bind(effect2);
    job.i = instance;
    job.id = instance.uid;
    effect2.scheduler = () => queueJob(job);
    toggleRecurse(instance, true);
    update();
  };
  const updateComponentPreRender = (instance, nextVNode, optimized) => {
    nextVNode.component = instance;
    const prevProps = instance.vnode.props;
    instance.vnode = nextVNode;
    instance.next = null;
    updateProps$2(instance, nextVNode.props, prevProps, optimized);
    updateSlots(instance, nextVNode.children, optimized);
    pauseTracking();
    flushPreFlushCbs(instance);
    resetTracking();
  };
  const patchChildren = (n1, n2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized = false) => {
    const c1 = n1 && n1.children;
    const prevShapeFlag = n1 ? n1.shapeFlag : 0;
    const c2 = n2.children;
    const { patchFlag, shapeFlag } = n2;
    if (patchFlag > 0) {
      if (patchFlag & 128) {
        patchKeyedChildren(
          c1,
          c2,
          container,
          anchor,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
        return;
      } else if (patchFlag & 256) {
        patchUnkeyedChildren(
          c1,
          c2,
          container,
          anchor,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
        return;
      }
    }
    if (shapeFlag & 8) {
      if (prevShapeFlag & 16) {
        unmountChildren(c1, parentComponent, parentSuspense);
      }
      if (c2 !== c1) {
        hostSetElementText(container, c2);
      }
    } else {
      if (prevShapeFlag & 16) {
        if (shapeFlag & 16) {
          patchKeyedChildren(
            c1,
            c2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
        } else {
          unmountChildren(c1, parentComponent, parentSuspense, true);
        }
      } else {
        if (prevShapeFlag & 8) {
          hostSetElementText(container, "");
        }
        if (shapeFlag & 16) {
          mountChildren(
            c2,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
        }
      }
    }
  };
  const patchUnkeyedChildren = (c1, c2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    c1 = c1 || EMPTY_ARR;
    c2 = c2 || EMPTY_ARR;
    const oldLength = c1.length;
    const newLength = c2.length;
    const commonLength = Math.min(oldLength, newLength);
    let i;
    for (i = 0; i < commonLength; i++) {
      const nextChild = c2[i] = optimized ? cloneIfMounted(c2[i]) : normalizeVNode(c2[i]);
      patch(
        c1[i],
        nextChild,
        container,
        null,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized
      );
    }
    if (oldLength > newLength) {
      unmountChildren(
        c1,
        parentComponent,
        parentSuspense,
        true,
        false,
        commonLength
      );
    } else {
      mountChildren(
        c2,
        container,
        anchor,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized,
        commonLength
      );
    }
  };
  const patchKeyedChildren = (c1, c2, container, parentAnchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized) => {
    let i = 0;
    const l2 = c2.length;
    let e1 = c1.length - 1;
    let e2 = l2 - 1;
    while (i <= e1 && i <= e2) {
      const n1 = c1[i];
      const n2 = c2[i] = optimized ? cloneIfMounted(c2[i]) : normalizeVNode(c2[i]);
      if (isSameVNodeType(n1, n2)) {
        patch(
          n1,
          n2,
          container,
          null,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
      } else {
        break;
      }
      i++;
    }
    while (i <= e1 && i <= e2) {
      const n1 = c1[e1];
      const n2 = c2[e2] = optimized ? cloneIfMounted(c2[e2]) : normalizeVNode(c2[e2]);
      if (isSameVNodeType(n1, n2)) {
        patch(
          n1,
          n2,
          container,
          null,
          parentComponent,
          parentSuspense,
          namespace,
          slotScopeIds,
          optimized
        );
      } else {
        break;
      }
      e1--;
      e2--;
    }
    if (i > e1) {
      if (i <= e2) {
        const nextPos = e2 + 1;
        const anchor = nextPos < l2 ? c2[nextPos].el : parentAnchor;
        while (i <= e2) {
          patch(
            null,
            c2[i] = optimized ? cloneIfMounted(c2[i]) : normalizeVNode(c2[i]),
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
          i++;
        }
      }
    } else if (i > e2) {
      while (i <= e1) {
        unmount(c1[i], parentComponent, parentSuspense, true);
        i++;
      }
    } else {
      const s1 = i;
      const s2 = i;
      const keyToNewIndexMap = /* @__PURE__ */ new Map();
      for (i = s2; i <= e2; i++) {
        const nextChild = c2[i] = optimized ? cloneIfMounted(c2[i]) : normalizeVNode(c2[i]);
        if (nextChild.key != null) {
          keyToNewIndexMap.set(nextChild.key, i);
        }
      }
      let j;
      let patched = 0;
      const toBePatched = e2 - s2 + 1;
      let moved = false;
      let maxNewIndexSoFar = 0;
      const newIndexToOldIndexMap = new Array(toBePatched);
      for (i = 0; i < toBePatched; i++) newIndexToOldIndexMap[i] = 0;
      for (i = s1; i <= e1; i++) {
        const prevChild = c1[i];
        if (patched >= toBePatched) {
          unmount(prevChild, parentComponent, parentSuspense, true);
          continue;
        }
        let newIndex;
        if (prevChild.key != null) {
          newIndex = keyToNewIndexMap.get(prevChild.key);
        } else {
          for (j = s2; j <= e2; j++) {
            if (newIndexToOldIndexMap[j - s2] === 0 && isSameVNodeType(prevChild, c2[j])) {
              newIndex = j;
              break;
            }
          }
        }
        if (newIndex === void 0) {
          unmount(prevChild, parentComponent, parentSuspense, true);
        } else {
          newIndexToOldIndexMap[newIndex - s2] = i + 1;
          if (newIndex >= maxNewIndexSoFar) {
            maxNewIndexSoFar = newIndex;
          } else {
            moved = true;
          }
          patch(
            prevChild,
            c2[newIndex],
            container,
            null,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
          patched++;
        }
      }
      const increasingNewIndexSequence = moved ? getSequence(newIndexToOldIndexMap) : EMPTY_ARR;
      j = increasingNewIndexSequence.length - 1;
      for (i = toBePatched - 1; i >= 0; i--) {
        const nextIndex = s2 + i;
        const nextChild = c2[nextIndex];
        const anchor = nextIndex + 1 < l2 ? c2[nextIndex + 1].el : parentAnchor;
        if (newIndexToOldIndexMap[i] === 0) {
          patch(
            null,
            nextChild,
            container,
            anchor,
            parentComponent,
            parentSuspense,
            namespace,
            slotScopeIds,
            optimized
          );
        } else if (moved) {
          if (j < 0 || i !== increasingNewIndexSequence[j]) {
            move(nextChild, container, anchor, 2);
          } else {
            j--;
          }
        }
      }
    }
  };
  const move = (vnode, container, anchor, moveType, parentSuspense = null) => {
    const { el, type, transition, children, shapeFlag } = vnode;
    if (shapeFlag & 6) {
      move(vnode.component.subTree, container, anchor, moveType);
      return;
    }
    if (shapeFlag & 128) {
      vnode.suspense.move(container, anchor, moveType);
      return;
    }
    if (shapeFlag & 64) {
      type.move(vnode, container, anchor, internals);
      return;
    }
    if (type === Fragment) {
      hostInsert(el, container, anchor);
      for (let i = 0; i < children.length; i++) {
        move(children[i], container, anchor, moveType);
      }
      hostInsert(vnode.anchor, container, anchor);
      return;
    }
    if (type === Static) {
      moveStaticNode(vnode, container, anchor);
      return;
    }
    const needTransition2 = moveType !== 2 && shapeFlag & 1 && transition;
    if (needTransition2) {
      if (moveType === 0) {
        transition.beforeEnter(el);
        hostInsert(el, container, anchor);
        queuePostRenderEffect(() => transition.enter(el), parentSuspense);
      } else {
        const { leave, delayLeave, afterLeave } = transition;
        const remove22 = () => hostInsert(el, container, anchor);
        const performLeave = () => {
          leave(el, () => {
            remove22();
            afterLeave && afterLeave();
          });
        };
        if (delayLeave) {
          delayLeave(el, remove22, performLeave);
        } else {
          performLeave();
        }
      }
    } else {
      hostInsert(el, container, anchor);
    }
  };
  const unmount = (vnode, parentComponent, parentSuspense, doRemove = false, optimized = false) => {
    const {
      type,
      props,
      ref: ref3,
      children,
      dynamicChildren,
      shapeFlag,
      patchFlag,
      dirs,
      cacheIndex
    } = vnode;
    if (patchFlag === -2) {
      optimized = false;
    }
    if (ref3 != null) {
      setRef(ref3, null, parentSuspense, vnode, true);
    }
    if (cacheIndex != null) {
      parentComponent.renderCache[cacheIndex] = void 0;
    }
    if (shapeFlag & 256) {
      parentComponent.ctx.deactivate(vnode);
      return;
    }
    const shouldInvokeDirs = shapeFlag & 1 && dirs;
    const shouldInvokeVnodeHook = !isAsyncWrapper(vnode);
    let vnodeHook;
    if (shouldInvokeVnodeHook && (vnodeHook = props && props.onVnodeBeforeUnmount)) {
      invokeVNodeHook(vnodeHook, parentComponent, vnode);
    }
    if (shapeFlag & 6) {
      unmountComponent(vnode.component, parentSuspense, doRemove);
    } else {
      if (shapeFlag & 128) {
        vnode.suspense.unmount(parentSuspense, doRemove);
        return;
      }
      if (shouldInvokeDirs) {
        invokeDirectiveHook(vnode, null, parentComponent, "beforeUnmount");
      }
      if (shapeFlag & 64) {
        vnode.type.remove(
          vnode,
          parentComponent,
          parentSuspense,
          internals,
          doRemove
        );
      } else if (dynamicChildren && // #5154
      // when v-once is used inside a block, setBlockTracking(-1) marks the
      // parent block with hasOnce: true
      // so that it doesn't take the fast path during unmount - otherwise
      // components nested in v-once are never unmounted.
      !dynamicChildren.hasOnce && // #1153: fast path should not be taken for non-stable (v-for) fragments
      (type !== Fragment || patchFlag > 0 && patchFlag & 64)) {
        unmountChildren(
          dynamicChildren,
          parentComponent,
          parentSuspense,
          false,
          true
        );
      } else if (type === Fragment && patchFlag & (128 | 256) || !optimized && shapeFlag & 16) {
        unmountChildren(children, parentComponent, parentSuspense);
      }
      if (doRemove) {
        remove2(vnode);
      }
    }
    if (shouldInvokeVnodeHook && (vnodeHook = props && props.onVnodeUnmounted) || shouldInvokeDirs) {
      queuePostRenderEffect(() => {
        vnodeHook && invokeVNodeHook(vnodeHook, parentComponent, vnode);
        shouldInvokeDirs && invokeDirectiveHook(vnode, null, parentComponent, "unmounted");
      }, parentSuspense);
    }
  };
  const remove2 = (vnode) => {
    const { type, el, anchor, transition } = vnode;
    if (type === Fragment) {
      {
        removeFragment(el, anchor);
      }
      return;
    }
    if (type === Static) {
      removeStaticNode(vnode);
      return;
    }
    const performRemove = () => {
      hostRemove(el);
      if (transition && !transition.persisted && transition.afterLeave) {
        transition.afterLeave();
      }
    };
    if (vnode.shapeFlag & 1 && transition && !transition.persisted) {
      const { leave, delayLeave } = transition;
      const performLeave = () => leave(el, performRemove);
      if (delayLeave) {
        delayLeave(vnode.el, performRemove, performLeave);
      } else {
        performLeave();
      }
    } else {
      performRemove();
    }
  };
  const removeFragment = (cur, end) => {
    let next;
    while (cur !== end) {
      next = hostNextSibling(cur);
      hostRemove(cur);
      cur = next;
    }
    hostRemove(end);
  };
  const unmountComponent = (instance, parentSuspense, doRemove) => {
    const { bum, scope, job, subTree, um, m, a } = instance;
    invalidateMount(m);
    invalidateMount(a);
    if (bum) {
      invokeArrayFns(bum);
    }
    scope.stop();
    if (job) {
      job.flags |= 8;
      unmount(subTree, instance, parentSuspense, doRemove);
    }
    if (um) {
      queuePostRenderEffect(um, parentSuspense);
    }
    queuePostRenderEffect(() => {
      instance.isUnmounted = true;
    }, parentSuspense);
    if (parentSuspense && parentSuspense.pendingBranch && !parentSuspense.isUnmounted && instance.asyncDep && !instance.asyncResolved && instance.suspenseId === parentSuspense.pendingId) {
      parentSuspense.deps--;
      if (parentSuspense.deps === 0) {
        parentSuspense.resolve();
      }
    }
  };
  const unmountChildren = (children, parentComponent, parentSuspense, doRemove = false, optimized = false, start = 0) => {
    for (let i = start; i < children.length; i++) {
      unmount(children[i], parentComponent, parentSuspense, doRemove, optimized);
    }
  };
  const getNextHostNode = (vnode) => {
    if (vnode.shapeFlag & 6) {
      return getNextHostNode(vnode.component.subTree);
    }
    if (vnode.shapeFlag & 128) {
      return vnode.suspense.next();
    }
    const el = hostNextSibling(vnode.anchor || vnode.el);
    const teleportEnd = el && el[TeleportEndKey];
    return teleportEnd ? hostNextSibling(teleportEnd) : el;
  };
  let isFlushing = false;
  const render = (vnode, container, namespace) => {
    if (vnode == null) {
      if (container._vnode) {
        unmount(container._vnode, null, null, true);
      }
    } else {
      patch(
        container._vnode || null,
        vnode,
        container,
        null,
        null,
        null,
        namespace
      );
    }
    container._vnode = vnode;
    if (!isFlushing) {
      isFlushing = true;
      flushPreFlushCbs();
      flushPostFlushCbs();
      isFlushing = false;
    }
  };
  const internals = {
    p: patch,
    um: unmount,
    m: move,
    r: remove2,
    mt: mountComponent,
    mc: mountChildren,
    pc: patchChildren,
    pbc: patchBlockChildren,
    n: getNextHostNode,
    o: options
  };
  let hydrate;
  let hydrateNode;
  return {
    render,
    hydrate,
    createApp: createAppAPI(render, hydrate)
  };
}
function resolveChildrenNamespace({ type, props }, currentNamespace) {
  return currentNamespace === "svg" && type === "foreignObject" || currentNamespace === "mathml" && type === "annotation-xml" && props && props.encoding && props.encoding.includes("html") ? void 0 : currentNamespace;
}
function toggleRecurse({ effect: effect2, job }, allowed) {
  if (allowed) {
    effect2.flags |= 32;
    job.flags |= 4;
  } else {
    effect2.flags &= ~32;
    job.flags &= ~4;
  }
}
function needTransition(parentSuspense, transition) {
  return (!parentSuspense || parentSuspense && !parentSuspense.pendingBranch) && transition && !transition.persisted;
}
function traverseStaticChildren(n1, n2, shallow = false) {
  const ch1 = n1.children;
  const ch2 = n2.children;
  if (isArray$k(ch1) && isArray$k(ch2)) {
    for (let i = 0; i < ch1.length; i++) {
      const c1 = ch1[i];
      let c2 = ch2[i];
      if (c2.shapeFlag & 1 && !c2.dynamicChildren) {
        if (c2.patchFlag <= 0 || c2.patchFlag === 32) {
          c2 = ch2[i] = cloneIfMounted(ch2[i]);
          c2.el = c1.el;
        }
        if (!shallow && c2.patchFlag !== -2)
          traverseStaticChildren(c1, c2);
      }
      if (c2.type === Text$1) {
        c2.el = c1.el;
      }
    }
  }
}
function getSequence(arr) {
  const p = arr.slice();
  const result = [0];
  let i, j, u, v, c;
  const len = arr.length;
  for (i = 0; i < len; i++) {
    const arrI = arr[i];
    if (arrI !== 0) {
      j = result[result.length - 1];
      if (arr[j] < arrI) {
        p[i] = j;
        result.push(i);
        continue;
      }
      u = 0;
      v = result.length - 1;
      while (u < v) {
        c = u + v >> 1;
        if (arr[result[c]] < arrI) {
          u = c + 1;
        } else {
          v = c;
        }
      }
      if (arrI < arr[result[u]]) {
        if (u > 0) {
          p[i] = result[u - 1];
        }
        result[u] = i;
      }
    }
  }
  u = result.length;
  v = result[u - 1];
  while (u-- > 0) {
    result[u] = v;
    v = p[v];
  }
  return result;
}
function locateNonHydratedAsyncRoot(instance) {
  const subComponent = instance.subTree.component;
  if (subComponent) {
    if (subComponent.asyncDep && !subComponent.asyncResolved) {
      return subComponent;
    } else {
      return locateNonHydratedAsyncRoot(subComponent);
    }
  }
}
function invalidateMount(hooks) {
  if (hooks) {
    for (let i = 0; i < hooks.length; i++)
      hooks[i].flags |= 8;
  }
}
const ssrContextKey = Symbol.for("v-scx");
const useSSRContext = () => {
  {
    const ctx = inject(ssrContextKey);
    return ctx;
  }
};
function watchEffect(effect2, options) {
  return doWatch(effect2, null, options);
}
function watch(source, cb, options) {
  return doWatch(source, cb, options);
}
function doWatch(source, cb, options = EMPTY_OBJ$1) {
  const { immediate, deep, flush, once } = options;
  const baseWatchOptions = extend$3({}, options);
  const runsImmediately = cb && immediate || !cb && flush !== "post";
  let ssrCleanup;
  if (isInSSRComponentSetup) {
    if (flush === "sync") {
      const ctx = useSSRContext();
      ssrCleanup = ctx.__watcherHandles || (ctx.__watcherHandles = []);
    } else if (!runsImmediately) {
      const watchStopHandle = () => {
      };
      watchStopHandle.stop = NOOP;
      watchStopHandle.resume = NOOP;
      watchStopHandle.pause = NOOP;
      return watchStopHandle;
    }
  }
  const instance = currentInstance;
  baseWatchOptions.call = (fn, type, args) => callWithAsyncErrorHandling(fn, instance, type, args);
  let isPre = false;
  if (flush === "post") {
    baseWatchOptions.scheduler = (job) => {
      queuePostRenderEffect(job, instance && instance.suspense);
    };
  } else if (flush !== "sync") {
    isPre = true;
    baseWatchOptions.scheduler = (job, isFirstRun) => {
      if (isFirstRun) {
        job();
      } else {
        queueJob(job);
      }
    };
  }
  baseWatchOptions.augmentJob = (job) => {
    if (cb) {
      job.flags |= 4;
    }
    if (isPre) {
      job.flags |= 2;
      if (instance) {
        job.id = instance.uid;
        job.i = instance;
      }
    }
  };
  const watchHandle = watch$1(source, cb, baseWatchOptions);
  if (isInSSRComponentSetup) {
    if (ssrCleanup) {
      ssrCleanup.push(watchHandle);
    } else if (runsImmediately) {
      watchHandle();
    }
  }
  return watchHandle;
}
function instanceWatch(source, value, options) {
  const publicThis = this.proxy;
  const getter = isString$3(source) ? source.includes(".") ? createPathGetter(publicThis, source) : () => publicThis[source] : source.bind(publicThis, publicThis);
  let cb;
  if (isFunction$1(value)) {
    cb = value;
  } else {
    cb = value.handler;
    options = value;
  }
  const reset = setCurrentInstance(this);
  const res = doWatch(getter, cb.bind(publicThis), options);
  reset();
  return res;
}
function createPathGetter(ctx, path) {
  const segments = path.split(".");
  return () => {
    let cur = ctx;
    for (let i = 0; i < segments.length && cur; i++) {
      cur = cur[segments[i]];
    }
    return cur;
  };
}
const getModelModifiers = (props, modelName) => {
  return modelName === "modelValue" || modelName === "model-value" ? props.modelModifiers : props[`${modelName}Modifiers`] || props[`${camelize(modelName)}Modifiers`] || props[`${hyphenate(modelName)}Modifiers`];
};
function emit(instance, event, ...rawArgs) {
  if (instance.isUnmounted) return;
  const props = instance.vnode.props || EMPTY_OBJ$1;
  let args = rawArgs;
  const isModelListener2 = event.startsWith("update:");
  const modifiers = isModelListener2 && getModelModifiers(props, event.slice(7));
  if (modifiers) {
    if (modifiers.trim) {
      args = rawArgs.map((a) => isString$3(a) ? a.trim() : a);
    }
    if (modifiers.number) {
      args = rawArgs.map(looseToNumber);
    }
  }
  let handlerName;
  let handler = props[handlerName = toHandlerKey(event)] || // also try camelCase event handler (#2249)
  props[handlerName = toHandlerKey(camelize(event))];
  if (!handler && isModelListener2) {
    handler = props[handlerName = toHandlerKey(hyphenate(event))];
  }
  if (handler) {
    callWithAsyncErrorHandling(
      handler,
      instance,
      6,
      args
    );
  }
  const onceHandler = props[handlerName + `Once`];
  if (onceHandler) {
    if (!instance.emitted) {
      instance.emitted = {};
    } else if (instance.emitted[handlerName]) {
      return;
    }
    instance.emitted[handlerName] = true;
    callWithAsyncErrorHandling(
      onceHandler,
      instance,
      6,
      args
    );
  }
}
function normalizeEmitsOptions(comp, appContext, asMixin = false) {
  const cache = appContext.emitsCache;
  const cached = cache.get(comp);
  if (cached !== void 0) {
    return cached;
  }
  const raw = comp.emits;
  let normalized = {};
  let hasExtends = false;
  if (!isFunction$1(comp)) {
    const extendEmits = (raw2) => {
      const normalizedFromExtend = normalizeEmitsOptions(raw2, appContext, true);
      if (normalizedFromExtend) {
        hasExtends = true;
        extend$3(normalized, normalizedFromExtend);
      }
    };
    if (!asMixin && appContext.mixins.length) {
      appContext.mixins.forEach(extendEmits);
    }
    if (comp.extends) {
      extendEmits(comp.extends);
    }
    if (comp.mixins) {
      comp.mixins.forEach(extendEmits);
    }
  }
  if (!raw && !hasExtends) {
    if (isObject$o(comp)) {
      cache.set(comp, null);
    }
    return null;
  }
  if (isArray$k(raw)) {
    raw.forEach((key) => normalized[key] = null);
  } else {
    extend$3(normalized, raw);
  }
  if (isObject$o(comp)) {
    cache.set(comp, normalized);
  }
  return normalized;
}
function isEmitListener(options, key) {
  if (!options || !isOn$1(key)) {
    return false;
  }
  key = key.slice(2).replace(/Once$/, "");
  return hasOwn$m(options, key[0].toLowerCase() + key.slice(1)) || hasOwn$m(options, hyphenate(key)) || hasOwn$m(options, key);
}
function markAttrsAccessed() {
}
function renderComponentRoot(instance) {
  const {
    type: Component,
    vnode,
    proxy,
    withProxy,
    propsOptions: [propsOptions],
    slots,
    attrs,
    emit: emit2,
    render,
    renderCache,
    props,
    data,
    setupState,
    ctx,
    inheritAttrs
  } = instance;
  const prev = setCurrentRenderingInstance(instance);
  let result;
  let fallthroughAttrs;
  try {
    if (vnode.shapeFlag & 4) {
      const proxyToUse = withProxy || proxy;
      const thisProxy = false ? new Proxy(proxyToUse, {
        get(target, key, receiver) {
          warn$1(
            `Property '${String(
              key
            )}' was accessed via 'this'. Avoid using 'this' in templates.`
          );
          return Reflect.get(target, key, receiver);
        }
      }) : proxyToUse;
      result = normalizeVNode(
        render.call(
          thisProxy,
          proxyToUse,
          renderCache,
          false ? shallowReadonly(props) : props,
          setupState,
          data,
          ctx
        )
      );
      fallthroughAttrs = attrs;
    } else {
      const render2 = Component;
      if (false) ;
      result = normalizeVNode(
        render2.length > 1 ? render2(
          false ? shallowReadonly(props) : props,
          false ? {
            get attrs() {
              markAttrsAccessed();
              return shallowReadonly(attrs);
            },
            slots,
            emit: emit2
          } : { attrs, slots, emit: emit2 }
        ) : render2(
          false ? shallowReadonly(props) : props,
          null
        )
      );
      fallthroughAttrs = Component.props ? attrs : getFunctionalFallthrough(attrs);
    }
  } catch (err) {
    blockStack.length = 0;
    handleError(err, instance, 1);
    result = createVNode(Comment);
  }
  let root = result;
  if (fallthroughAttrs && inheritAttrs !== false) {
    const keys = Object.keys(fallthroughAttrs);
    const { shapeFlag } = root;
    if (keys.length) {
      if (shapeFlag & (1 | 6)) {
        if (propsOptions && keys.some(isModelListener)) {
          fallthroughAttrs = filterModelListeners(
            fallthroughAttrs,
            propsOptions
          );
        }
        root = cloneVNode(root, fallthroughAttrs, false, true);
      }
    }
  }
  if (vnode.dirs) {
    root = cloneVNode(root, null, false, true);
    root.dirs = root.dirs ? root.dirs.concat(vnode.dirs) : vnode.dirs;
  }
  if (vnode.transition) {
    setTransitionHooks(root, vnode.transition);
  }
  {
    result = root;
  }
  setCurrentRenderingInstance(prev);
  return result;
}
function filterSingleRoot(children, recurse = true) {
  let singleRoot;
  for (let i = 0; i < children.length; i++) {
    const child = children[i];
    if (isVNode(child)) {
      if (child.type !== Comment || child.children === "v-if") {
        if (singleRoot) {
          return;
        } else {
          singleRoot = child;
        }
      }
    } else {
      return;
    }
  }
  return singleRoot;
}
const getFunctionalFallthrough = (attrs) => {
  let res;
  for (const key in attrs) {
    if (key === "class" || key === "style" || isOn$1(key)) {
      (res || (res = {}))[key] = attrs[key];
    }
  }
  return res;
};
const filterModelListeners = (attrs, props) => {
  const res = {};
  for (const key in attrs) {
    if (!isModelListener(key) || !(key.slice(9) in props)) {
      res[key] = attrs[key];
    }
  }
  return res;
};
function shouldUpdateComponent(prevVNode, nextVNode, optimized) {
  const { props: prevProps, children: prevChildren, component } = prevVNode;
  const { props: nextProps, children: nextChildren, patchFlag } = nextVNode;
  const emits = component.emitsOptions;
  if (nextVNode.dirs || nextVNode.transition) {
    return true;
  }
  if (optimized && patchFlag >= 0) {
    if (patchFlag & 1024) {
      return true;
    }
    if (patchFlag & 16) {
      if (!prevProps) {
        return !!nextProps;
      }
      return hasPropsChanged(prevProps, nextProps, emits);
    } else if (patchFlag & 8) {
      const dynamicProps = nextVNode.dynamicProps;
      for (let i = 0; i < dynamicProps.length; i++) {
        const key = dynamicProps[i];
        if (nextProps[key] !== prevProps[key] && !isEmitListener(emits, key)) {
          return true;
        }
      }
    }
  } else {
    if (prevChildren || nextChildren) {
      if (!nextChildren || !nextChildren.$stable) {
        return true;
      }
    }
    if (prevProps === nextProps) {
      return false;
    }
    if (!prevProps) {
      return !!nextProps;
    }
    if (!nextProps) {
      return true;
    }
    return hasPropsChanged(prevProps, nextProps, emits);
  }
  return false;
}
function hasPropsChanged(prevProps, nextProps, emitsOptions) {
  const nextKeys = Object.keys(nextProps);
  if (nextKeys.length !== Object.keys(prevProps).length) {
    return true;
  }
  for (let i = 0; i < nextKeys.length; i++) {
    const key = nextKeys[i];
    if (nextProps[key] !== prevProps[key] && !isEmitListener(emitsOptions, key)) {
      return true;
    }
  }
  return false;
}
function updateHOCHostEl({ vnode, parent }, el) {
  while (parent) {
    const root = parent.subTree;
    if (root.suspense && root.suspense.activeBranch === vnode) {
      root.el = vnode.el;
    }
    if (root === vnode) {
      (vnode = parent.vnode).el = el;
      parent = parent.parent;
    } else {
      break;
    }
  }
}
const isSuspense = (type) => type.__isSuspense;
let suspenseId = 0;
const SuspenseImpl = {
  name: "Suspense",
  // In order to make Suspense tree-shakable, we need to avoid importing it
  // directly in the renderer. The renderer checks for the __isSuspense flag
  // on a vnode's type and calls the `process` method, passing in renderer
  // internals.
  __isSuspense: true,
  process(n1, n2, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized, rendererInternals) {
    if (n1 == null) {
      mountSuspense(
        n2,
        container,
        anchor,
        parentComponent,
        parentSuspense,
        namespace,
        slotScopeIds,
        optimized,
        rendererInternals
      );
    } else {
      if (parentSuspense && parentSuspense.deps > 0 && !n1.suspense.isInFallback) {
        n2.suspense = n1.suspense;
        n2.suspense.vnode = n2;
        n2.el = n1.el;
        return;
      }
      patchSuspense(
        n1,
        n2,
        container,
        anchor,
        parentComponent,
        namespace,
        slotScopeIds,
        optimized,
        rendererInternals
      );
    }
  },
  hydrate: hydrateSuspense,
  normalize: normalizeSuspenseChildren
};
const Suspense = SuspenseImpl;
function triggerEvent(vnode, name) {
  const eventListener = vnode.props && vnode.props[name];
  if (isFunction$1(eventListener)) {
    eventListener();
  }
}
function mountSuspense(vnode, container, anchor, parentComponent, parentSuspense, namespace, slotScopeIds, optimized, rendererInternals) {
  const {
    p: patch,
    o: { createElement }
  } = rendererInternals;
  const hiddenContainer = createElement("div");
  const suspense = vnode.suspense = createSuspenseBoundary(
    vnode,
    parentSuspense,
    parentComponent,
    container,
    hiddenContainer,
    anchor,
    namespace,
    slotScopeIds,
    optimized,
    rendererInternals
  );
  patch(
    null,
    suspense.pendingBranch = vnode.ssContent,
    hiddenContainer,
    null,
    parentComponent,
    suspense,
    namespace,
    slotScopeIds
  );
  if (suspense.deps > 0) {
    triggerEvent(vnode, "onPending");
    triggerEvent(vnode, "onFallback");
    patch(
      null,
      vnode.ssFallback,
      container,
      anchor,
      parentComponent,
      null,
      // fallback tree will not have suspense context
      namespace,
      slotScopeIds
    );
    setActiveBranch(suspense, vnode.ssFallback);
  } else {
    suspense.resolve(false, true);
  }
}
function patchSuspense(n1, n2, container, anchor, parentComponent, namespace, slotScopeIds, optimized, { p: patch, um: unmount, o: { createElement } }) {
  const suspense = n2.suspense = n1.suspense;
  suspense.vnode = n2;
  n2.el = n1.el;
  const newBranch = n2.ssContent;
  const newFallback = n2.ssFallback;
  const { activeBranch, pendingBranch, isInFallback, isHydrating } = suspense;
  if (pendingBranch) {
    suspense.pendingBranch = newBranch;
    if (isSameVNodeType(newBranch, pendingBranch)) {
      patch(
        pendingBranch,
        newBranch,
        suspense.hiddenContainer,
        null,
        parentComponent,
        suspense,
        namespace,
        slotScopeIds,
        optimized
      );
      if (suspense.deps <= 0) {
        suspense.resolve();
      } else if (isInFallback) {
        if (!isHydrating) {
          patch(
            activeBranch,
            newFallback,
            container,
            anchor,
            parentComponent,
            null,
            // fallback tree will not have suspense context
            namespace,
            slotScopeIds,
            optimized
          );
          setActiveBranch(suspense, newFallback);
        }
      }
    } else {
      suspense.pendingId = suspenseId++;
      if (isHydrating) {
        suspense.isHydrating = false;
        suspense.activeBranch = pendingBranch;
      } else {
        unmount(pendingBranch, parentComponent, suspense);
      }
      suspense.deps = 0;
      suspense.effects.length = 0;
      suspense.hiddenContainer = createElement("div");
      if (isInFallback) {
        patch(
          null,
          newBranch,
          suspense.hiddenContainer,
          null,
          parentComponent,
          suspense,
          namespace,
          slotScopeIds,
          optimized
        );
        if (suspense.deps <= 0) {
          suspense.resolve();
        } else {
          patch(
            activeBranch,
            newFallback,
            container,
            anchor,
            parentComponent,
            null,
            // fallback tree will not have suspense context
            namespace,
            slotScopeIds,
            optimized
          );
          setActiveBranch(suspense, newFallback);
        }
      } else if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
        patch(
          activeBranch,
          newBranch,
          container,
          anchor,
          parentComponent,
          suspense,
          namespace,
          slotScopeIds,
          optimized
        );
        suspense.resolve(true);
      } else {
        patch(
          null,
          newBranch,
          suspense.hiddenContainer,
          null,
          parentComponent,
          suspense,
          namespace,
          slotScopeIds,
          optimized
        );
        if (suspense.deps <= 0) {
          suspense.resolve();
        }
      }
    }
  } else {
    if (activeBranch && isSameVNodeType(newBranch, activeBranch)) {
      patch(
        activeBranch,
        newBranch,
        container,
        anchor,
        parentComponent,
        suspense,
        namespace,
        slotScopeIds,
        optimized
      );
      setActiveBranch(suspense, newBranch);
    } else {
      triggerEvent(n2, "onPending");
      suspense.pendingBranch = newBranch;
      if (newBranch.shapeFlag & 512) {
        suspense.pendingId = newBranch.component.suspenseId;
      } else {
        suspense.pendingId = suspenseId++;
      }
      patch(
        null,
        newBranch,
        suspense.hiddenContainer,
        null,
        parentComponent,
        suspense,
        namespace,
        slotScopeIds,
        optimized
      );
      if (suspense.deps <= 0) {
        suspense.resolve();
      } else {
        const { timeout, pendingId } = suspense;
        if (timeout > 0) {
          setTimeout(() => {
            if (suspense.pendingId === pendingId) {
              suspense.fallback(newFallback);
            }
          }, timeout);
        } else if (timeout === 0) {
          suspense.fallback(newFallback);
        }
      }
    }
  }
}
function createSuspenseBoundary(vnode, parentSuspense, parentComponent, container, hiddenContainer, anchor, namespace, slotScopeIds, optimized, rendererInternals, isHydrating = false) {
  const {
    p: patch,
    m: move,
    um: unmount,
    n: next,
    o: { parentNode, remove: remove2 }
  } = rendererInternals;
  let parentSuspenseId;
  const isSuspensible = isVNodeSuspensible(vnode);
  if (isSuspensible) {
    if (parentSuspense && parentSuspense.pendingBranch) {
      parentSuspenseId = parentSuspense.pendingId;
      parentSuspense.deps++;
    }
  }
  const timeout = vnode.props ? toNumber(vnode.props.timeout) : void 0;
  const initialAnchor = anchor;
  const suspense = {
    vnode,
    parent: parentSuspense,
    parentComponent,
    namespace,
    container,
    hiddenContainer,
    deps: 0,
    pendingId: suspenseId++,
    timeout: typeof timeout === "number" ? timeout : -1,
    activeBranch: null,
    pendingBranch: null,
    isInFallback: !isHydrating,
    isHydrating,
    isUnmounted: false,
    effects: [],
    resolve(resume = false, sync = false) {
      const {
        vnode: vnode2,
        activeBranch,
        pendingBranch,
        pendingId,
        effects,
        parentComponent: parentComponent2,
        container: container2
      } = suspense;
      let delayEnter = false;
      if (suspense.isHydrating) {
        suspense.isHydrating = false;
      } else if (!resume) {
        delayEnter = activeBranch && pendingBranch.transition && pendingBranch.transition.mode === "out-in";
        if (delayEnter) {
          activeBranch.transition.afterLeave = () => {
            if (pendingId === suspense.pendingId) {
              move(
                pendingBranch,
                container2,
                anchor === initialAnchor ? next(activeBranch) : anchor,
                0
              );
              queuePostFlushCb(effects);
            }
          };
        }
        if (activeBranch) {
          if (parentNode(activeBranch.el) === container2) {
            anchor = next(activeBranch);
          }
          unmount(activeBranch, parentComponent2, suspense, true);
        }
        if (!delayEnter) {
          move(pendingBranch, container2, anchor, 0);
        }
      }
      setActiveBranch(suspense, pendingBranch);
      suspense.pendingBranch = null;
      suspense.isInFallback = false;
      let parent = suspense.parent;
      let hasUnresolvedAncestor = false;
      while (parent) {
        if (parent.pendingBranch) {
          parent.effects.push(...effects);
          hasUnresolvedAncestor = true;
          break;
        }
        parent = parent.parent;
      }
      if (!hasUnresolvedAncestor && !delayEnter) {
        queuePostFlushCb(effects);
      }
      suspense.effects = [];
      if (isSuspensible) {
        if (parentSuspense && parentSuspense.pendingBranch && parentSuspenseId === parentSuspense.pendingId) {
          parentSuspense.deps--;
          if (parentSuspense.deps === 0 && !sync) {
            parentSuspense.resolve();
          }
        }
      }
      triggerEvent(vnode2, "onResolve");
    },
    fallback(fallbackVNode) {
      if (!suspense.pendingBranch) {
        return;
      }
      const { vnode: vnode2, activeBranch, parentComponent: parentComponent2, container: container2, namespace: namespace2 } = suspense;
      triggerEvent(vnode2, "onFallback");
      const anchor2 = next(activeBranch);
      const mountFallback = () => {
        if (!suspense.isInFallback) {
          return;
        }
        patch(
          null,
          fallbackVNode,
          container2,
          anchor2,
          parentComponent2,
          null,
          // fallback tree will not have suspense context
          namespace2,
          slotScopeIds,
          optimized
        );
        setActiveBranch(suspense, fallbackVNode);
      };
      const delayEnter = fallbackVNode.transition && fallbackVNode.transition.mode === "out-in";
      if (delayEnter) {
        activeBranch.transition.afterLeave = mountFallback;
      }
      suspense.isInFallback = true;
      unmount(
        activeBranch,
        parentComponent2,
        null,
        // no suspense so unmount hooks fire now
        true
        // shouldRemove
      );
      if (!delayEnter) {
        mountFallback();
      }
    },
    move(container2, anchor2, type) {
      suspense.activeBranch && move(suspense.activeBranch, container2, anchor2, type);
      suspense.container = container2;
    },
    next() {
      return suspense.activeBranch && next(suspense.activeBranch);
    },
    registerDep(instance, setupRenderEffect, optimized2) {
      const isInPendingSuspense = !!suspense.pendingBranch;
      if (isInPendingSuspense) {
        suspense.deps++;
      }
      const hydratedEl = instance.vnode.el;
      instance.asyncDep.catch((err) => {
        handleError(err, instance, 0);
      }).then((asyncSetupResult) => {
        if (instance.isUnmounted || suspense.isUnmounted || suspense.pendingId !== instance.suspenseId) {
          return;
        }
        instance.asyncResolved = true;
        const { vnode: vnode2 } = instance;
        handleSetupResult(instance, asyncSetupResult, false);
        if (hydratedEl) {
          vnode2.el = hydratedEl;
        }
        const placeholder = !hydratedEl && instance.subTree.el;
        setupRenderEffect(
          instance,
          vnode2,
          // component may have been moved before resolve.
          // if this is not a hydration, instance.subTree will be the comment
          // placeholder.
          parentNode(hydratedEl || instance.subTree.el),
          // anchor will not be used if this is hydration, so only need to
          // consider the comment placeholder case.
          hydratedEl ? null : next(instance.subTree),
          suspense,
          namespace,
          optimized2
        );
        if (placeholder) {
          remove2(placeholder);
        }
        updateHOCHostEl(instance, vnode2.el);
        if (isInPendingSuspense && --suspense.deps === 0) {
          suspense.resolve();
        }
      });
    },
    unmount(parentSuspense2, doRemove) {
      suspense.isUnmounted = true;
      if (suspense.activeBranch) {
        unmount(
          suspense.activeBranch,
          parentComponent,
          parentSuspense2,
          doRemove
        );
      }
      if (suspense.pendingBranch) {
        unmount(
          suspense.pendingBranch,
          parentComponent,
          parentSuspense2,
          doRemove
        );
      }
    }
  };
  return suspense;
}
function hydrateSuspense(node, vnode, parentComponent, parentSuspense, namespace, slotScopeIds, optimized, rendererInternals, hydrateNode) {
  const suspense = vnode.suspense = createSuspenseBoundary(
    vnode,
    parentSuspense,
    parentComponent,
    node.parentNode,
    // eslint-disable-next-line no-restricted-globals
    document.createElement("div"),
    null,
    namespace,
    slotScopeIds,
    optimized,
    rendererInternals,
    true
  );
  const result = hydrateNode(
    node,
    suspense.pendingBranch = vnode.ssContent,
    parentComponent,
    suspense,
    slotScopeIds,
    optimized
  );
  if (suspense.deps === 0) {
    suspense.resolve(false, true);
  }
  return result;
}
function normalizeSuspenseChildren(vnode) {
  const { shapeFlag, children } = vnode;
  const isSlotChildren = shapeFlag & 32;
  vnode.ssContent = normalizeSuspenseSlot(
    isSlotChildren ? children.default : children
  );
  vnode.ssFallback = isSlotChildren ? normalizeSuspenseSlot(children.fallback) : createVNode(Comment);
}
function normalizeSuspenseSlot(s) {
  let block;
  if (isFunction$1(s)) {
    const trackBlock = isBlockTreeEnabled && s._c;
    if (trackBlock) {
      s._d = false;
      openBlock();
    }
    s = s();
    if (trackBlock) {
      s._d = true;
      block = currentBlock;
      closeBlock();
    }
  }
  if (isArray$k(s)) {
    const singleChild = filterSingleRoot(s);
    s = singleChild;
  }
  s = normalizeVNode(s);
  if (block && !s.dynamicChildren) {
    s.dynamicChildren = block.filter((c) => c !== s);
  }
  return s;
}
function queueEffectWithSuspense(fn, suspense) {
  if (suspense && suspense.pendingBranch) {
    if (isArray$k(fn)) {
      suspense.effects.push(...fn);
    } else {
      suspense.effects.push(fn);
    }
  } else {
    queuePostFlushCb(fn);
  }
}
function setActiveBranch(suspense, branch) {
  suspense.activeBranch = branch;
  const { vnode, parentComponent } = suspense;
  let el = branch.el;
  while (!el && branch.component) {
    branch = branch.component.subTree;
    el = branch.el;
  }
  vnode.el = el;
  if (parentComponent && parentComponent.subTree === vnode) {
    parentComponent.vnode.el = el;
    updateHOCHostEl(parentComponent, el);
  }
}
function isVNodeSuspensible(vnode) {
  const suspensible = vnode.props && vnode.props.suspensible;
  return suspensible != null && suspensible !== false;
}
const Fragment = Symbol.for("v-fgt");
const Text$1 = Symbol.for("v-txt");
const Comment = Symbol.for("v-cmt");
const Static = Symbol.for("v-stc");
const blockStack = [];
let currentBlock = null;
function openBlock(disableTracking = false) {
  blockStack.push(currentBlock = disableTracking ? null : []);
}
function closeBlock() {
  blockStack.pop();
  currentBlock = blockStack[blockStack.length - 1] || null;
}
let isBlockTreeEnabled = 1;
function setBlockTracking(value, inVOnce = false) {
  isBlockTreeEnabled += value;
  if (value < 0 && currentBlock && inVOnce) {
    currentBlock.hasOnce = true;
  }
}
function setupBlock(vnode) {
  vnode.dynamicChildren = isBlockTreeEnabled > 0 ? currentBlock || EMPTY_ARR : null;
  closeBlock();
  if (isBlockTreeEnabled > 0 && currentBlock) {
    currentBlock.push(vnode);
  }
  return vnode;
}
function createElementBlock(type, props, children, patchFlag, dynamicProps, shapeFlag) {
  return setupBlock(
    createBaseVNode(
      type,
      props,
      children,
      patchFlag,
      dynamicProps,
      shapeFlag,
      true
    )
  );
}
function createBlock(type, props, children, patchFlag, dynamicProps) {
  return setupBlock(
    createVNode(
      type,
      props,
      children,
      patchFlag,
      dynamicProps,
      true
    )
  );
}
function isVNode(value) {
  return value ? value.__v_isVNode === true : false;
}
function isSameVNodeType(n1, n2) {
  return n1.type === n2.type && n1.key === n2.key;
}
const normalizeKey = ({ key }) => key != null ? key : null;
const normalizeRef = ({
  ref: ref3,
  ref_key,
  ref_for
}) => {
  if (typeof ref3 === "number") {
    ref3 = "" + ref3;
  }
  return ref3 != null ? isString$3(ref3) || isRef(ref3) || isFunction$1(ref3) ? { i: currentRenderingInstance, r: ref3, k: ref_key, f: !!ref_for } : ref3 : null;
};
function createBaseVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, shapeFlag = type === Fragment ? 0 : 1, isBlockNode = false, needFullChildrenNormalization = false) {
  const vnode = {
    __v_isVNode: true,
    __v_skip: true,
    type,
    props,
    key: props && normalizeKey(props),
    ref: props && normalizeRef(props),
    scopeId: currentScopeId,
    slotScopeIds: null,
    children,
    component: null,
    suspense: null,
    ssContent: null,
    ssFallback: null,
    dirs: null,
    transition: null,
    el: null,
    anchor: null,
    target: null,
    targetStart: null,
    targetAnchor: null,
    staticCount: 0,
    shapeFlag,
    patchFlag,
    dynamicProps,
    dynamicChildren: null,
    appContext: null,
    ctx: currentRenderingInstance
  };
  if (needFullChildrenNormalization) {
    normalizeChildren(vnode, children);
    if (shapeFlag & 128) {
      type.normalize(vnode);
    }
  } else if (children) {
    vnode.shapeFlag |= isString$3(children) ? 8 : 16;
  }
  if (isBlockTreeEnabled > 0 && // avoid a block node from tracking itself
  !isBlockNode && // has current parent block
  currentBlock && // presence of a patch flag indicates this node needs patching on updates.
  // component nodes also should always be patched, because even if the
  // component doesn't need to update, it needs to persist the instance on to
  // the next vnode so that it can be properly unmounted later.
  (vnode.patchFlag > 0 || shapeFlag & 6) && // the EVENTS flag is only for hydration and if it is the only flag, the
  // vnode should not be considered dynamic due to handler caching.
  vnode.patchFlag !== 32) {
    currentBlock.push(vnode);
  }
  return vnode;
}
const createVNode = _createVNode;
function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {
  if (!type || type === NULL_DYNAMIC_COMPONENT) {
    type = Comment;
  }
  if (isVNode(type)) {
    const cloned = cloneVNode(
      type,
      props,
      true
      /* mergeRef: true */
    );
    if (children) {
      normalizeChildren(cloned, children);
    }
    if (isBlockTreeEnabled > 0 && !isBlockNode && currentBlock) {
      if (cloned.shapeFlag & 6) {
        currentBlock[currentBlock.indexOf(type)] = cloned;
      } else {
        currentBlock.push(cloned);
      }
    }
    cloned.patchFlag = -2;
    return cloned;
  }
  if (isClassComponent(type)) {
    type = type.__vccOpts;
  }
  if (props) {
    props = guardReactiveProps(props);
    let { class: klass, style } = props;
    if (klass && !isString$3(klass)) {
      props.class = normalizeClass(klass);
    }
    if (isObject$o(style)) {
      if (isProxy(style) && !isArray$k(style)) {
        style = extend$3({}, style);
      }
      props.style = normalizeStyle$1(style);
    }
  }
  const shapeFlag = isString$3(type) ? 1 : isSuspense(type) ? 128 : isTeleport(type) ? 64 : isObject$o(type) ? 4 : isFunction$1(type) ? 2 : 0;
  return createBaseVNode(
    type,
    props,
    children,
    patchFlag,
    dynamicProps,
    shapeFlag,
    isBlockNode,
    true
  );
}
function guardReactiveProps(props) {
  if (!props) return null;
  return isProxy(props) || isInternalObject(props) ? extend$3({}, props) : props;
}
function cloneVNode(vnode, extraProps, mergeRef = false, cloneTransition = false) {
  const { props, ref: ref3, patchFlag, children, transition } = vnode;
  const mergedProps = extraProps ? mergeProps(props || {}, extraProps) : props;
  const cloned = {
    __v_isVNode: true,
    __v_skip: true,
    type: vnode.type,
    props: mergedProps,
    key: mergedProps && normalizeKey(mergedProps),
    ref: extraProps && extraProps.ref ? (
      // #2078 in the case of <component :is="vnode" ref="extra"/>
      // if the vnode itself already has a ref, cloneVNode will need to merge
      // the refs so the single vnode can be set on multiple refs
      mergeRef && ref3 ? isArray$k(ref3) ? ref3.concat(normalizeRef(extraProps)) : [ref3, normalizeRef(extraProps)] : normalizeRef(extraProps)
    ) : ref3,
    scopeId: vnode.scopeId,
    slotScopeIds: vnode.slotScopeIds,
    children: children,
    target: vnode.target,
    targetStart: vnode.targetStart,
    targetAnchor: vnode.targetAnchor,
    staticCount: vnode.staticCount,
    shapeFlag: vnode.shapeFlag,
    // if the vnode is cloned with extra props, we can no longer assume its
    // existing patch flag to be reliable and need to add the FULL_PROPS flag.
    // note: preserve flag for fragments since they use the flag for children
    // fast paths only.
    patchFlag: extraProps && vnode.type !== Fragment ? patchFlag === -1 ? 16 : patchFlag | 16 : patchFlag,
    dynamicProps: vnode.dynamicProps,
    dynamicChildren: vnode.dynamicChildren,
    appContext: vnode.appContext,
    dirs: vnode.dirs,
    transition,
    // These should technically only be non-null on mounted VNodes. However,
    // they *should* be copied for kept-alive vnodes. So we just always copy
    // them since them being non-null during a mount doesn't affect the logic as
    // they will simply be overwritten.
    component: vnode.component,
    suspense: vnode.suspense,
    ssContent: vnode.ssContent && cloneVNode(vnode.ssContent),
    ssFallback: vnode.ssFallback && cloneVNode(vnode.ssFallback),
    el: vnode.el,
    anchor: vnode.anchor,
    ctx: vnode.ctx,
    ce: vnode.ce
  };
  if (transition && cloneTransition) {
    setTransitionHooks(
      cloned,
      transition.clone(cloned)
    );
  }
  return cloned;
}
function createTextVNode(text = " ", flag = 0) {
  return createVNode(Text$1, null, text, flag);
}
function createCommentVNode(text = "", asBlock = false) {
  return asBlock ? (openBlock(), createBlock(Comment, null, text)) : createVNode(Comment, null, text);
}
function normalizeVNode(child) {
  if (child == null || typeof child === "boolean") {
    return createVNode(Comment);
  } else if (isArray$k(child)) {
    return createVNode(
      Fragment,
      null,
      // #3666, avoid reference pollution when reusing vnode
      child.slice()
    );
  } else if (isVNode(child)) {
    return cloneIfMounted(child);
  } else {
    return createVNode(Text$1, null, String(child));
  }
}
function cloneIfMounted(child) {
  return child.el === null && child.patchFlag !== -1 || child.memo ? child : cloneVNode(child);
}
function normalizeChildren(vnode, children) {
  let type = 0;
  const { shapeFlag } = vnode;
  if (children == null) {
    children = null;
  } else if (isArray$k(children)) {
    type = 16;
  } else if (typeof children === "object") {
    if (shapeFlag & (1 | 64)) {
      const slot = children.default;
      if (slot) {
        slot._c && (slot._d = false);
        normalizeChildren(vnode, slot());
        slot._c && (slot._d = true);
      }
      return;
    } else {
      type = 32;
      const slotFlag = children._;
      if (!slotFlag && !isInternalObject(children)) {
        children._ctx = currentRenderingInstance;
      } else if (slotFlag === 3 && currentRenderingInstance) {
        if (currentRenderingInstance.slots._ === 1) {
          children._ = 1;
        } else {
          children._ = 2;
          vnode.patchFlag |= 1024;
        }
      }
    }
  } else if (isFunction$1(children)) {
    children = { default: children, _ctx: currentRenderingInstance };
    type = 32;
  } else {
    children = String(children);
    if (shapeFlag & 64) {
      type = 16;
      children = [createTextVNode(children)];
    } else {
      type = 8;
    }
  }
  vnode.children = children;
  vnode.shapeFlag |= type;
}
function mergeProps(...args) {
  const ret = {};
  for (let i = 0; i < args.length; i++) {
    const toMerge = args[i];
    for (const key in toMerge) {
      if (key === "class") {
        if (ret.class !== toMerge.class) {
          ret.class = normalizeClass([ret.class, toMerge.class]);
        }
      } else if (key === "style") {
        ret.style = normalizeStyle$1([ret.style, toMerge.style]);
      } else if (isOn$1(key)) {
        const existing = ret[key];
        const incoming = toMerge[key];
        if (incoming && existing !== incoming && !(isArray$k(existing) && existing.includes(incoming))) {
          ret[key] = existing ? [].concat(existing, incoming) : incoming;
        }
      } else if (key !== "") {
        ret[key] = toMerge[key];
      }
    }
  }
  return ret;
}
function invokeVNodeHook(hook, instance, vnode, prevVNode = null) {
  callWithAsyncErrorHandling(hook, instance, 7, [
    vnode,
    prevVNode
  ]);
}
const emptyAppContext = createAppContext();
let uid$6 = 0;
function createComponentInstance(vnode, parent, suspense) {
  const type = vnode.type;
  const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;
  const instance = {
    uid: uid$6++,
    vnode,
    type,
    parent,
    appContext,
    root: null,
    // to be immediately set
    next: null,
    subTree: null,
    // will be set synchronously right after creation
    effect: null,
    update: null,
    // will be set synchronously right after creation
    job: null,
    scope: new EffectScope(
      true
      /* detached */
    ),
    render: null,
    proxy: null,
    exposed: null,
    exposeProxy: null,
    withProxy: null,
    provides: parent ? parent.provides : Object.create(appContext.provides),
    ids: parent ? parent.ids : ["", 0, 0],
    accessCache: null,
    renderCache: [],
    // local resolved assets
    components: null,
    directives: null,
    // resolved props and emits options
    propsOptions: normalizePropsOptions(type, appContext),
    emitsOptions: normalizeEmitsOptions(type, appContext),
    // emit
    emit: null,
    // to be set immediately
    emitted: null,
    // props default value
    propsDefaults: EMPTY_OBJ$1,
    // inheritAttrs
    inheritAttrs: type.inheritAttrs,
    // state
    ctx: EMPTY_OBJ$1,
    data: EMPTY_OBJ$1,
    props: EMPTY_OBJ$1,
    attrs: EMPTY_OBJ$1,
    slots: EMPTY_OBJ$1,
    refs: EMPTY_OBJ$1,
    setupState: EMPTY_OBJ$1,
    setupContext: null,
    // suspense related
    suspense,
    suspenseId: suspense ? suspense.pendingId : 0,
    asyncDep: null,
    asyncResolved: false,
    // lifecycle hooks
    // not using enums here because it results in computed properties
    isMounted: false,
    isUnmounted: false,
    isDeactivated: false,
    bc: null,
    c: null,
    bm: null,
    m: null,
    bu: null,
    u: null,
    um: null,
    bum: null,
    da: null,
    a: null,
    rtg: null,
    rtc: null,
    ec: null,
    sp: null
  };
  {
    instance.ctx = { _: instance };
  }
  instance.root = parent ? parent.root : instance;
  instance.emit = emit.bind(null, instance);
  if (vnode.ce) {
    vnode.ce(instance);
  }
  return instance;
}
let currentInstance = null;
const getCurrentInstance = () => currentInstance || currentRenderingInstance;
let internalSetCurrentInstance;
let setInSSRSetupState;
{
  const g = getGlobalThis();
  const registerGlobalSetter = (key, setter) => {
    let setters;
    if (!(setters = g[key])) setters = g[key] = [];
    setters.push(setter);
    return (v) => {
      if (setters.length > 1) setters.forEach((set) => set(v));
      else setters[0](v);
    };
  };
  internalSetCurrentInstance = registerGlobalSetter(
    `__VUE_INSTANCE_SETTERS__`,
    (v) => currentInstance = v
  );
  setInSSRSetupState = registerGlobalSetter(
    `__VUE_SSR_SETTERS__`,
    (v) => isInSSRComponentSetup = v
  );
}
const setCurrentInstance = (instance) => {
  const prev = currentInstance;
  internalSetCurrentInstance(instance);
  instance.scope.on();
  return () => {
    instance.scope.off();
    internalSetCurrentInstance(prev);
  };
};
const unsetCurrentInstance = () => {
  currentInstance && currentInstance.scope.off();
  internalSetCurrentInstance(null);
};
function isStatefulComponent(instance) {
  return instance.vnode.shapeFlag & 4;
}
let isInSSRComponentSetup = false;
function setupComponent(instance, isSSR = false, optimized = false) {
  isSSR && setInSSRSetupState(isSSR);
  const { props, children } = instance.vnode;
  const isStateful = isStatefulComponent(instance);
  initProps$1(instance, props, isStateful, isSSR);
  initSlots(instance, children, optimized);
  const setupResult = isStateful ? setupStatefulComponent(instance, isSSR) : void 0;
  isSSR && setInSSRSetupState(false);
  return setupResult;
}
function setupStatefulComponent(instance, isSSR) {
  const Component = instance.type;
  instance.accessCache = /* @__PURE__ */ Object.create(null);
  instance.proxy = new Proxy(instance.ctx, PublicInstanceProxyHandlers);
  const { setup } = Component;
  if (setup) {
    pauseTracking();
    const setupContext = instance.setupContext = setup.length > 1 ? createSetupContext(instance) : null;
    const reset = setCurrentInstance(instance);
    const setupResult = callWithErrorHandling(
      setup,
      instance,
      0,
      [
        instance.props,
        setupContext
      ]
    );
    const isAsyncSetup = isPromise(setupResult);
    resetTracking();
    reset();
    if ((isAsyncSetup || instance.sp) && !isAsyncWrapper(instance)) {
      markAsyncBoundary(instance);
    }
    if (isAsyncSetup) {
      setupResult.then(unsetCurrentInstance, unsetCurrentInstance);
      if (isSSR) {
        return setupResult.then((resolvedResult) => {
          handleSetupResult(instance, resolvedResult, isSSR);
        }).catch((e) => {
          handleError(e, instance, 0);
        });
      } else {
        instance.asyncDep = setupResult;
      }
    } else {
      handleSetupResult(instance, setupResult, isSSR);
    }
  } else {
    finishComponentSetup(instance, isSSR);
  }
}
function handleSetupResult(instance, setupResult, isSSR) {
  if (isFunction$1(setupResult)) {
    if (instance.type.__ssrInlineRender) {
      instance.ssrRender = setupResult;
    } else {
      instance.render = setupResult;
    }
  } else if (isObject$o(setupResult)) {
    instance.setupState = proxyRefs(setupResult);
  } else ;
  finishComponentSetup(instance, isSSR);
}
let compile;
function finishComponentSetup(instance, isSSR, skipOptions) {
  const Component = instance.type;
  if (!instance.render) {
    if (!isSSR && compile && !Component.render) {
      const template = Component.template || resolveMergedOptions(instance).template;
      if (template) {
        const { isCustomElement, compilerOptions } = instance.appContext.config;
        const { delimiters, compilerOptions: componentCompilerOptions } = Component;
        const finalCompilerOptions = extend$3(
          extend$3(
            {
              isCustomElement,
              delimiters
            },
            compilerOptions
          ),
          componentCompilerOptions
        );
        Component.render = compile(template, finalCompilerOptions);
      }
    }
    instance.render = Component.render || NOOP;
  }
  {
    const reset = setCurrentInstance(instance);
    pauseTracking();
    try {
      applyOptions(instance);
    } finally {
      resetTracking();
      reset();
    }
  }
}
const attrsProxyHandlers = {
  get(target, key) {
    track(target, "get", "");
    return target[key];
  }
};
function createSetupContext(instance) {
  const expose = (exposed) => {
    instance.exposed = exposed || {};
  };
  {
    return {
      attrs: new Proxy(instance.attrs, attrsProxyHandlers),
      slots: instance.slots,
      emit: instance.emit,
      expose
    };
  }
}
function getComponentPublicInstance(instance) {
  if (instance.exposed) {
    return instance.exposeProxy || (instance.exposeProxy = new Proxy(proxyRefs(markRaw(instance.exposed)), {
      get(target, key) {
        if (key in target) {
          return target[key];
        } else if (key in publicPropertiesMap) {
          return publicPropertiesMap[key](instance);
        }
      },
      has(target, key) {
        return key in target || key in publicPropertiesMap;
      }
    }));
  } else {
    return instance.proxy;
  }
}
const classifyRE = /(?:^|[-_])(\w)/g;
const classify = (str) => str.replace(classifyRE, (c) => c.toUpperCase()).replace(/[-_]/g, "");
function getComponentName(Component, includeInferred = true) {
  return isFunction$1(Component) ? Component.displayName || Component.name : Component.name || includeInferred && Component.__name;
}
function formatComponentName(instance, Component, isRoot = false) {
  let name = getComponentName(Component);
  if (!name && Component.__file) {
    const match = Component.__file.match(/([^/\\]+)\.\w+$/);
    if (match) {
      name = match[1];
    }
  }
  if (!name && instance && instance.parent) {
    const inferFromRegistry = (registry) => {
      for (const key in registry) {
        if (registry[key] === Component) {
          return key;
        }
      }
    };
    name = inferFromRegistry(
      instance.components || instance.parent.type.components
    ) || inferFromRegistry(instance.appContext.components);
  }
  return name ? classify(name) : isRoot ? `App` : `Anonymous`;
}
function isClassComponent(value) {
  return isFunction$1(value) && "__vccOpts" in value;
}
const computed = (getterOrOptions, debugOptions) => {
  const c = computed$1(getterOrOptions, debugOptions, isInSSRComponentSetup);
  return c;
};
function h$2(type, propsOrChildren, children) {
  const l = arguments.length;
  if (l === 2) {
    if (isObject$o(propsOrChildren) && !isArray$k(propsOrChildren)) {
      if (isVNode(propsOrChildren)) {
        return createVNode(type, null, [propsOrChildren]);
      }
      return createVNode(type, propsOrChildren);
    } else {
      return createVNode(type, null, propsOrChildren);
    }
  } else {
    if (l > 3) {
      children = Array.prototype.slice.call(arguments, 2);
    } else if (l === 3 && isVNode(children)) {
      children = [children];
    }
    return createVNode(type, propsOrChildren, children);
  }
}
const version$2 = "3.5.13";

/* Injected with object hook! */

/**
* @vue/runtime-dom v3.5.13
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
let policy = void 0;
const tt$1 = typeof window !== "undefined" && window.trustedTypes;
if (tt$1) {
  try {
    policy = /* @__PURE__ */ tt$1.createPolicy("vue", {
      createHTML: (val) => val
    });
  } catch (e) {
  }
}
const unsafeToTrustedHTML = policy ? (val) => policy.createHTML(val) : (val) => val;
const svgNS = "http://www.w3.org/2000/svg";
const mathmlNS = "http://www.w3.org/1998/Math/MathML";
const doc = typeof document !== "undefined" ? document : null;
const templateContainer = doc && /* @__PURE__ */ doc.createElement("template");
const nodeOps = {
  insert: (child, parent, anchor) => {
    parent.insertBefore(child, anchor || null);
  },
  remove: (child) => {
    const parent = child.parentNode;
    if (parent) {
      parent.removeChild(child);
    }
  },
  createElement: (tag, namespace, is, props) => {
    const el = namespace === "svg" ? doc.createElementNS(svgNS, tag) : namespace === "mathml" ? doc.createElementNS(mathmlNS, tag) : is ? doc.createElement(tag, { is }) : doc.createElement(tag);
    if (tag === "select" && props && props.multiple != null) {
      el.setAttribute("multiple", props.multiple);
    }
    return el;
  },
  createText: (text) => doc.createTextNode(text),
  createComment: (text) => doc.createComment(text),
  setText: (node, text) => {
    node.nodeValue = text;
  },
  setElementText: (el, text) => {
    el.textContent = text;
  },
  parentNode: (node) => node.parentNode,
  nextSibling: (node) => node.nextSibling,
  querySelector: (selector) => doc.querySelector(selector),
  setScopeId(el, id) {
    el.setAttribute(id, "");
  },
  // __UNSAFE__
  // Reason: innerHTML.
  // Static content here can only come from compiled templates.
  // As long as the user only uses trusted templates, this is safe.
  insertStaticContent(content, parent, anchor, namespace, start, end) {
    const before = anchor ? anchor.previousSibling : parent.lastChild;
    if (start && (start === end || start.nextSibling)) {
      while (true) {
        parent.insertBefore(start.cloneNode(true), anchor);
        if (start === end || !(start = start.nextSibling)) break;
      }
    } else {
      templateContainer.innerHTML = unsafeToTrustedHTML(
        namespace === "svg" ? `<svg>${content}</svg>` : namespace === "mathml" ? `<math>${content}</math>` : content
      );
      const template = templateContainer.content;
      if (namespace === "svg" || namespace === "mathml") {
        const wrapper = template.firstChild;
        while (wrapper.firstChild) {
          template.appendChild(wrapper.firstChild);
        }
        template.removeChild(wrapper);
      }
      parent.insertBefore(template, anchor);
    }
    return [
      // first
      before ? before.nextSibling : parent.firstChild,
      // last
      anchor ? anchor.previousSibling : parent.lastChild
    ];
  }
};
const vtcKey = Symbol("_vtc");
function patchClass(el, value, isSVG) {
  const transitionClasses = el[vtcKey];
  if (transitionClasses) {
    value = (value ? [value, ...transitionClasses] : [...transitionClasses]).join(" ");
  }
  if (value == null) {
    el.removeAttribute("class");
  } else if (isSVG) {
    el.setAttribute("class", value);
  } else {
    el.className = value;
  }
}
const vShowOriginalDisplay = Symbol("_vod");
const vShowHidden = Symbol("_vsh");
const vShow = {
  beforeMount(el, { value }, { transition }) {
    el[vShowOriginalDisplay] = el.style.display === "none" ? "" : el.style.display;
    if (transition && value) {
      transition.beforeEnter(el);
    } else {
      setDisplay(el, value);
    }
  },
  mounted(el, { value }, { transition }) {
    if (transition && value) {
      transition.enter(el);
    }
  },
  updated(el, { value, oldValue }, { transition }) {
    if (!value === !oldValue) return;
    if (transition) {
      if (value) {
        transition.beforeEnter(el);
        setDisplay(el, true);
        transition.enter(el);
      } else {
        transition.leave(el, () => {
          setDisplay(el, false);
        });
      }
    } else {
      setDisplay(el, value);
    }
  },
  beforeUnmount(el, { value }) {
    setDisplay(el, value);
  }
};
function setDisplay(el, value) {
  el.style.display = value ? el[vShowOriginalDisplay] : "none";
  el[vShowHidden] = !value;
}
const CSS_VAR_TEXT = Symbol("");
const displayRE = /(^|;)\s*display\s*:/;
function patchStyle(el, prev, next) {
  const style = el.style;
  const isCssString = isString$3(next);
  let hasControlledDisplay = false;
  if (next && !isCssString) {
    if (prev) {
      if (!isString$3(prev)) {
        for (const key in prev) {
          if (next[key] == null) {
            setStyle(style, key, "");
          }
        }
      } else {
        for (const prevStyle of prev.split(";")) {
          const key = prevStyle.slice(0, prevStyle.indexOf(":")).trim();
          if (next[key] == null) {
            setStyle(style, key, "");
          }
        }
      }
    }
    for (const key in next) {
      if (key === "display") {
        hasControlledDisplay = true;
      }
      setStyle(style, key, next[key]);
    }
  } else {
    if (isCssString) {
      if (prev !== next) {
        const cssVarText = style[CSS_VAR_TEXT];
        if (cssVarText) {
          next += ";" + cssVarText;
        }
        style.cssText = next;
        hasControlledDisplay = displayRE.test(next);
      }
    } else if (prev) {
      el.removeAttribute("style");
    }
  }
  if (vShowOriginalDisplay in el) {
    el[vShowOriginalDisplay] = hasControlledDisplay ? style.display : "";
    if (el[vShowHidden]) {
      style.display = "none";
    }
  }
}
const importantRE = /\s*!important$/;
function setStyle(style, name, val) {
  if (isArray$k(val)) {
    val.forEach((v) => setStyle(style, name, v));
  } else {
    if (val == null) val = "";
    if (name.startsWith("--")) {
      style.setProperty(name, val);
    } else {
      const prefixed = autoPrefix(style, name);
      if (importantRE.test(val)) {
        style.setProperty(
          hyphenate(prefixed),
          val.replace(importantRE, ""),
          "important"
        );
      } else {
        style[prefixed] = val;
      }
    }
  }
}
const prefixes = ["Webkit", "Moz", "ms"];
const prefixCache = {};
function autoPrefix(style, rawName) {
  const cached = prefixCache[rawName];
  if (cached) {
    return cached;
  }
  let name = camelize(rawName);
  if (name !== "filter" && name in style) {
    return prefixCache[rawName] = name;
  }
  name = capitalize(name);
  for (let i = 0; i < prefixes.length; i++) {
    const prefixed = prefixes[i] + name;
    if (prefixed in style) {
      return prefixCache[rawName] = prefixed;
    }
  }
  return rawName;
}
const xlinkNS = "http://www.w3.org/1999/xlink";
function patchAttr(el, key, value, isSVG, instance, isBoolean = isSpecialBooleanAttr(key)) {
  if (isSVG && key.startsWith("xlink:")) {
    if (value == null) {
      el.removeAttributeNS(xlinkNS, key.slice(6, key.length));
    } else {
      el.setAttributeNS(xlinkNS, key, value);
    }
  } else {
    if (value == null || isBoolean && !includeBooleanAttr(value)) {
      el.removeAttribute(key);
    } else {
      el.setAttribute(
        key,
        isBoolean ? "" : isSymbol$7(value) ? String(value) : value
      );
    }
  }
}
function patchDOMProp(el, key, value, parentComponent, attrName) {
  if (key === "innerHTML" || key === "textContent") {
    if (value != null) {
      el[key] = key === "innerHTML" ? unsafeToTrustedHTML(value) : value;
    }
    return;
  }
  const tag = el.tagName;
  if (key === "value" && tag !== "PROGRESS" && // custom elements may use _value internally
  !tag.includes("-")) {
    const oldValue = tag === "OPTION" ? el.getAttribute("value") || "" : el.value;
    const newValue = value == null ? (
      // #11647: value should be set as empty string for null and undefined,
      // but <input type="checkbox"> should be set as 'on'.
      el.type === "checkbox" ? "on" : ""
    ) : String(value);
    if (oldValue !== newValue || !("_value" in el)) {
      el.value = newValue;
    }
    if (value == null) {
      el.removeAttribute(key);
    }
    el._value = value;
    return;
  }
  let needRemove = false;
  if (value === "" || value == null) {
    const type = typeof el[key];
    if (type === "boolean") {
      value = includeBooleanAttr(value);
    } else if (value == null && type === "string") {
      value = "";
      needRemove = true;
    } else if (type === "number") {
      value = 0;
      needRemove = true;
    }
  }
  try {
    el[key] = value;
  } catch (e) {
  }
  needRemove && el.removeAttribute(attrName || key);
}
function addEventListener$2(el, event, handler, options) {
  el.addEventListener(event, handler, options);
}
function removeEventListener$2(el, event, handler, options) {
  el.removeEventListener(event, handler, options);
}
const veiKey = Symbol("_vei");
function patchEvent(el, rawName, prevValue, nextValue, instance = null) {
  const invokers = el[veiKey] || (el[veiKey] = {});
  const existingInvoker = invokers[rawName];
  if (nextValue && existingInvoker) {
    existingInvoker.value = nextValue;
  } else {
    const [name, options] = parseName(rawName);
    if (nextValue) {
      const invoker = invokers[rawName] = createInvoker(
        nextValue,
        instance
      );
      addEventListener$2(el, name, invoker, options);
    } else if (existingInvoker) {
      removeEventListener$2(el, name, existingInvoker, options);
      invokers[rawName] = void 0;
    }
  }
}
const optionsModifierRE = /(?:Once|Passive|Capture)$/;
function parseName(name) {
  let options;
  if (optionsModifierRE.test(name)) {
    options = {};
    let m;
    while (m = name.match(optionsModifierRE)) {
      name = name.slice(0, name.length - m[0].length);
      options[m[0].toLowerCase()] = true;
    }
  }
  const event = name[2] === ":" ? name.slice(3) : hyphenate(name.slice(2));
  return [event, options];
}
let cachedNow = 0;
const p$1 = /* @__PURE__ */ Promise.resolve();
const getNow = () => cachedNow || (p$1.then(() => cachedNow = 0), cachedNow = Date.now());
function createInvoker(initialValue, instance) {
  const invoker = (e) => {
    if (!e._vts) {
      e._vts = Date.now();
    } else if (e._vts <= invoker.attached) {
      return;
    }
    callWithAsyncErrorHandling(
      patchStopImmediatePropagation(e, invoker.value),
      instance,
      5,
      [e]
    );
  };
  invoker.value = initialValue;
  invoker.attached = getNow();
  return invoker;
}
function patchStopImmediatePropagation(e, value) {
  if (isArray$k(value)) {
    const originalStop = e.stopImmediatePropagation;
    e.stopImmediatePropagation = () => {
      originalStop.call(e);
      e._stopped = true;
    };
    return value.map(
      (fn) => (e2) => !e2._stopped && fn && fn(e2)
    );
  } else {
    return value;
  }
}
const isNativeOn = (key) => key.charCodeAt(0) === 111 && key.charCodeAt(1) === 110 && // lowercase letter
key.charCodeAt(2) > 96 && key.charCodeAt(2) < 123;
const patchProp = (el, key, prevValue, nextValue, namespace, parentComponent) => {
  const isSVG = namespace === "svg";
  if (key === "class") {
    patchClass(el, nextValue, isSVG);
  } else if (key === "style") {
    patchStyle(el, prevValue, nextValue);
  } else if (isOn$1(key)) {
    if (!isModelListener(key)) {
      patchEvent(el, key, prevValue, nextValue, parentComponent);
    }
  } else if (key[0] === "." ? (key = key.slice(1), true) : key[0] === "^" ? (key = key.slice(1), false) : shouldSetAsProp(el, key, nextValue, isSVG)) {
    patchDOMProp(el, key, nextValue);
    if (!el.tagName.includes("-") && (key === "value" || key === "checked" || key === "selected")) {
      patchAttr(el, key, nextValue, isSVG, parentComponent, key !== "value");
    }
  } else if (
    // #11081 force set props for possible async custom element
    el._isVueCE && (/[A-Z]/.test(key) || !isString$3(nextValue))
  ) {
    patchDOMProp(el, camelize(key), nextValue, parentComponent, key);
  } else {
    if (key === "true-value") {
      el._trueValue = nextValue;
    } else if (key === "false-value") {
      el._falseValue = nextValue;
    }
    patchAttr(el, key, nextValue, isSVG);
  }
};
function shouldSetAsProp(el, key, value, isSVG) {
  if (isSVG) {
    if (key === "innerHTML" || key === "textContent") {
      return true;
    }
    if (key in el && isNativeOn(key) && isFunction$1(value)) {
      return true;
    }
    return false;
  }
  if (key === "spellcheck" || key === "draggable" || key === "translate") {
    return false;
  }
  if (key === "form") {
    return false;
  }
  if (key === "list" && el.tagName === "INPUT") {
    return false;
  }
  if (key === "type" && el.tagName === "TEXTAREA") {
    return false;
  }
  if (key === "width" || key === "height") {
    const tag = el.tagName;
    if (tag === "IMG" || tag === "VIDEO" || tag === "CANVAS" || tag === "SOURCE") {
      return false;
    }
  }
  if (isNativeOn(key) && isString$3(value)) {
    return false;
  }
  return key in el;
}
const getModelAssigner = (vnode) => {
  const fn = vnode.props["onUpdate:modelValue"] || false;
  return isArray$k(fn) ? (value) => invokeArrayFns(fn, value) : fn;
};
function onCompositionStart(e) {
  e.target.composing = true;
}
function onCompositionEnd(e) {
  const target = e.target;
  if (target.composing) {
    target.composing = false;
    target.dispatchEvent(new Event("input"));
  }
}
const assignKey = Symbol("_assign");
const vModelText = {
  created(el, { modifiers: { lazy, trim, number } }, vnode) {
    el[assignKey] = getModelAssigner(vnode);
    const castToNumber = number || vnode.props && vnode.props.type === "number";
    addEventListener$2(el, lazy ? "change" : "input", (e) => {
      if (e.target.composing) return;
      let domValue = el.value;
      if (trim) {
        domValue = domValue.trim();
      }
      if (castToNumber) {
        domValue = looseToNumber(domValue);
      }
      el[assignKey](domValue);
    });
    if (trim) {
      addEventListener$2(el, "change", () => {
        el.value = el.value.trim();
      });
    }
    if (!lazy) {
      addEventListener$2(el, "compositionstart", onCompositionStart);
      addEventListener$2(el, "compositionend", onCompositionEnd);
      addEventListener$2(el, "change", onCompositionEnd);
    }
  },
  // set value on mounted so it's after min/max for type="range"
  mounted(el, { value }) {
    el.value = value == null ? "" : value;
  },
  beforeUpdate(el, { value, oldValue, modifiers: { lazy, trim, number } }, vnode) {
    el[assignKey] = getModelAssigner(vnode);
    if (el.composing) return;
    const elValue = (number || el.type === "number") && !/^0\d/.test(el.value) ? looseToNumber(el.value) : el.value;
    const newValue = value == null ? "" : value;
    if (elValue === newValue) {
      return;
    }
    if (document.activeElement === el && el.type !== "range") {
      if (lazy && value === oldValue) {
        return;
      }
      if (trim && el.value.trim() === newValue) {
        return;
      }
    }
    el.value = newValue;
  }
};
const vModelCheckbox = {
  // #4096 array checkboxes need to be deep traversed
  deep: true,
  created(el, _, vnode) {
    el[assignKey] = getModelAssigner(vnode);
    addEventListener$2(el, "change", () => {
      const modelValue = el._modelValue;
      const elementValue = getValue(el);
      const checked = el.checked;
      const assign = el[assignKey];
      if (isArray$k(modelValue)) {
        const index = looseIndexOf(modelValue, elementValue);
        const found = index !== -1;
        if (checked && !found) {
          assign(modelValue.concat(elementValue));
        } else if (!checked && found) {
          const filtered = [...modelValue];
          filtered.splice(index, 1);
          assign(filtered);
        }
      } else if (isSet(modelValue)) {
        const cloned = new Set(modelValue);
        if (checked) {
          cloned.add(elementValue);
        } else {
          cloned.delete(elementValue);
        }
        assign(cloned);
      } else {
        assign(getCheckboxValue(el, checked));
      }
    });
  },
  // set initial checked on mount to wait for true-value/false-value
  mounted: setChecked,
  beforeUpdate(el, binding, vnode) {
    el[assignKey] = getModelAssigner(vnode);
    setChecked(el, binding, vnode);
  }
};
function setChecked(el, { value, oldValue }, vnode) {
  el._modelValue = value;
  let checked;
  if (isArray$k(value)) {
    checked = looseIndexOf(value, vnode.props.value) > -1;
  } else if (isSet(value)) {
    checked = value.has(vnode.props.value);
  } else {
    if (value === oldValue) return;
    checked = looseEqual(value, getCheckboxValue(el, true));
  }
  if (el.checked !== checked) {
    el.checked = checked;
  }
}
function getValue(el) {
  return "_value" in el ? el._value : el.value;
}
function getCheckboxValue(el, checked) {
  const key = checked ? "_trueValue" : "_falseValue";
  return key in el ? el[key] : checked;
}
const keyNames = {
  esc: "escape",
  space: " ",
  up: "arrow-up",
  left: "arrow-left",
  right: "arrow-right",
  down: "arrow-down",
  delete: "backspace"
};
const withKeys = (fn, modifiers) => {
  const cache = fn._withKeys || (fn._withKeys = {});
  const cacheKey = modifiers.join(".");
  return cache[cacheKey] || (cache[cacheKey] = (event) => {
    if (!("key" in event)) {
      return;
    }
    const eventKey = hyphenate(event.key);
    if (modifiers.some(
      (k) => k === eventKey || keyNames[k] === eventKey
    )) {
      return fn(event);
    }
  });
};
const rendererOptions = /* @__PURE__ */ extend$3({ patchProp }, nodeOps);
let renderer;
function ensureRenderer() {
  return renderer || (renderer = createRenderer(rendererOptions));
}
const createApp = (...args) => {
  const app = ensureRenderer().createApp(...args);
  const { mount } = app;
  app.mount = (containerOrSelector) => {
    const container = normalizeContainer(containerOrSelector);
    if (!container) return;
    const component = app._component;
    if (!isFunction$1(component) && !component.render && !component.template) {
      component.template = container.innerHTML;
    }
    if (container.nodeType === 1) {
      container.textContent = "";
    }
    const proxy = mount(container, false, resolveRootNamespace(container));
    if (container instanceof Element) {
      container.removeAttribute("v-cloak");
      container.setAttribute("data-v-app", "");
    }
    return proxy;
  };
  return app;
};
function resolveRootNamespace(container) {
  if (container instanceof SVGElement) {
    return "svg";
  }
  if (typeof MathMLElement === "function" && container instanceof MathMLElement) {
    return "mathml";
  }
}
function normalizeContainer(container) {
  if (isString$3(container)) {
    const res = document.querySelector(container);
    return res;
  }
  return container;
}

/* Injected with object hook! */

const _export_sfc = (sfc, props) => {
  const target = sfc.__vccOpts || sfc;
  for (const [key, val] of props) {
    target[key] = val;
  }
  return target;
};

/* Injected with object hook! */

/* unplugin-vue-components disabled */const _sfc_main$n = {};

const _hoisted_1$h = { class: "h-[calc(100vh-55px)]" };

function _sfc_render$1(_ctx, _cache) {
  return (openBlock(), createElementBlock("div", _hoisted_1$h, [
    renderSlot(_ctx.$slots, "default")
  ]))
}
const __unplugin_components_7 = /*#__PURE__*/_export_sfc(_sfc_main$n, [['render',_sfc_render$1]]);
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

function tryOnScopeDispose(fn) {
  if (getCurrentScope()) {
    onScopeDispose(fn);
    return true;
  }
  return false;
}

function toValue(r) {
  return typeof r === "function" ? r() : unref(r);
}

const isClient = typeof window !== "undefined" && typeof document !== "undefined";
typeof WorkerGlobalScope !== "undefined" && globalThis instanceof WorkerGlobalScope;
const toString$f = Object.prototype.toString;
const isObject$n = (val) => toString$f.call(val) === "[object Object]";
const noop$4 = () => {
};

function toRef(...args) {
  if (args.length !== 1)
    return toRef$1(...args);
  const r = args[0];
  return typeof r === "function" ? readonly(customRef(() => ({ get: r, set: noop$4 }))) : ref(r);
}

function watchWithFilter(source, cb, options = {}) {
  const {
    eventFilter = bypassFilter,
    ...watchOptions
  } = options;
  return watch(
    source,
    createFilterWrapper(
      eventFilter,
      cb
    ),
    watchOptions
  );
}

function tryOnMounted(fn, sync = true, target) {
  const instance = getLifeCycleTarget();
  if (instance)
    onMounted(fn, target);
  else if (sync)
    fn();
  else
    nextTick(fn);
}

/* Injected with object hook! */

/* Injected with object hook! */

const isDark = useDark();
const toggleDark = useToggle(isDark);

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * Custom positioning reference element.
 * @see https://floating-ui.com/docs/virtual-elements
 */

/* Injected with object hook! */

/**
 * Computes the `x` and `y` coordinates that will place the floating element
 * next to a given reference element.
 *
 * This export does not have any `platform` interface logic. You will need to
 * write one for the platform you are using Floating UI with.
 */
const computePosition = async (reference, floating, config) => {
  const {
    placement = 'bottom',
    strategy = 'absolute',
    middleware = [],
    platform
  } = config;
  const validMiddleware = middleware.filter(Boolean);
  const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(floating));
  let rects = await platform.getElementRects({
    reference,
    floating,
    strategy
  });
  let {
    x,
    y
  } = computeCoordsFromPlacement(rects, placement, rtl);
  let statefulPlacement = placement;
  let middlewareData = {};
  let resetCount = 0;
  for (let i = 0; i < validMiddleware.length; i++) {
    const {
      name,
      fn
    } = validMiddleware[i];
    const {
      x: nextX,
      y: nextY,
      data,
      reset
    } = await fn({
      x,
      y,
      initialPlacement: placement,
      placement: statefulPlacement,
      strategy,
      middlewareData,
      rects,
      platform,
      elements: {
        reference,
        floating
      }
    });
    x = nextX != null ? nextX : x;
    y = nextY != null ? nextY : y;
    middlewareData = {
      ...middlewareData,
      [name]: {
        ...middlewareData[name],
        ...data
      }
    };
    if (reset && resetCount <= 50) {
      resetCount++;
      if (typeof reset === 'object') {
        if (reset.placement) {
          statefulPlacement = reset.placement;
        }
        if (reset.rects) {
          rects = reset.rects === true ? await platform.getElementRects({
            reference,
            floating,
            strategy
          }) : reset.rects;
        }
        ({
          x,
          y
        } = computeCoordsFromPlacement(rects, statefulPlacement, rtl));
      }
      i = -1;
    }
  }
  return {
    x,
    y,
    placement: statefulPlacement,
    strategy,
    middlewareData
  };
};

/**
 * Resolves with an object of overflow side offsets that determine how much the
 * element is overflowing a given clipping boundary on each side.
 * - positive = overflowing the boundary by that number of pixels
 * - negative = how many pixels left before it will overflow
 * - 0 = lies flush with the boundary
 * @see https://floating-ui.com/docs/detectOverflow
 */
async function detectOverflow(state, options) {
  var _await$platform$isEle;
  if (options === void 0) {
    options = {};
  }
  const {
    x,
    y,
    platform,
    rects,
    elements,
    strategy
  } = state;
  const {
    boundary = 'clippingAncestors',
    rootBoundary = 'viewport',
    elementContext = 'floating',
    altBoundary = false,
    padding = 0
  } = evaluate(options, state);
  const paddingObject = getPaddingObject(padding);
  const altContext = elementContext === 'floating' ? 'reference' : 'floating';
  const element = elements[altBoundary ? altContext : elementContext];
  const clippingClientRect = rectToClientRect(await platform.getClippingRect({
    element: ((_await$platform$isEle = await (platform.isElement == null ? void 0 : platform.isElement(element))) != null ? _await$platform$isEle : true) ? element : element.contextElement || (await (platform.getDocumentElement == null ? void 0 : platform.getDocumentElement(elements.floating))),
    boundary,
    rootBoundary,
    strategy
  }));
  const rect = elementContext === 'floating' ? {
    x,
    y,
    width: rects.floating.width,
    height: rects.floating.height
  } : rects.reference;
  const offsetParent = await (platform.getOffsetParent == null ? void 0 : platform.getOffsetParent(elements.floating));
  const offsetScale = (await (platform.isElement == null ? void 0 : platform.isElement(offsetParent))) ? (await (platform.getScale == null ? void 0 : platform.getScale(offsetParent))) || {
    x: 1,
    y: 1
  } : {
    x: 1,
    y: 1
  };
  const elementClientRect = rectToClientRect(platform.convertOffsetParentRelativeRectToViewportRelativeRect ? await platform.convertOffsetParentRelativeRectToViewportRelativeRect({
    elements,
    rect,
    offsetParent,
    strategy
  }) : rect);
  return {
    top: (clippingClientRect.top - elementClientRect.top + paddingObject.top) / offsetScale.y,
    bottom: (elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom) / offsetScale.y,
    left: (clippingClientRect.left - elementClientRect.left + paddingObject.left) / offsetScale.x,
    right: (elementClientRect.right - clippingClientRect.right + paddingObject.right) / offsetScale.x
  };
}

/**
 * Provides data to position an inner element of the floating element so that it
 * appears centered to the reference element.
 * @see https://floating-ui.com/docs/arrow
 */
const arrow = options => ({
  name: 'arrow',
  options,
  async fn(state) {
    const {
      x,
      y,
      placement,
      rects,
      platform,
      elements,
      middlewareData
    } = state;
    // Since `element` is required, we don't Partial<> the type.
    const {
      element,
      padding = 0
    } = evaluate(options, state) || {};
    if (element == null) {
      return {};
    }
    const paddingObject = getPaddingObject(padding);
    const coords = {
      x,
      y
    };
    const axis = getAlignmentAxis(placement);
    const length = getAxisLength(axis);
    const arrowDimensions = await platform.getDimensions(element);
    const isYAxis = axis === 'y';
    const minProp = isYAxis ? 'top' : 'left';
    const maxProp = isYAxis ? 'bottom' : 'right';
    const clientProp = isYAxis ? 'clientHeight' : 'clientWidth';
    const endDiff = rects.reference[length] + rects.reference[axis] - coords[axis] - rects.floating[length];
    const startDiff = coords[axis] - rects.reference[axis];
    const arrowOffsetParent = await (platform.getOffsetParent == null ? void 0 : platform.getOffsetParent(element));
    let clientSize = arrowOffsetParent ? arrowOffsetParent[clientProp] : 0;

// DOM platform can return `window` as the `offsetParent`.
    if (!clientSize || !(await (platform.isElement == null ? void 0 : platform.isElement(arrowOffsetParent)))) {
      clientSize = elements.floating[clientProp] || rects.floating[length];
    }
    const centerToReference = endDiff / 2 - startDiff / 2;

// If the padding is large enough that it causes the arrow to no longer be
    // centered, modify the padding so that it is centered.
    const largestPossiblePadding = clientSize / 2 - arrowDimensions[length] / 2 - 1;
    const minPadding = min$5(paddingObject[minProp], largestPossiblePadding);
    const maxPadding = min$5(paddingObject[maxProp], largestPossiblePadding);

// Make sure the arrow doesn't overflow the floating element if the center
    // point is outside the floating element's bounds.
    const min$1 = minPadding;
    const max = clientSize - arrowDimensions[length] - maxPadding;
    const center = clientSize / 2 - arrowDimensions[length] / 2 + centerToReference;
    const offset = clamp$1(min$1, center, max);

// If the reference is small enough that the arrow's padding causes it to
    // to point to nothing for an aligned placement, adjust the offset of the
    // floating element itself. To ensure `shift()` continues to take action,
    // a single reset is performed when this is true.
    const shouldAddOffset = !middlewareData.arrow && getAlignment(placement) != null && center !== offset && rects.reference[length] / 2 - (center < min$1 ? minPadding : maxPadding) - arrowDimensions[length] / 2 < 0;
    const alignmentOffset = shouldAddOffset ? center < min$1 ? center - min$1 : center - max : 0;
    return {
      [axis]: coords[axis] + alignmentOffset,
      data: {
        [axis]: offset,
        centerOffset: center - offset - alignmentOffset,
        ...(shouldAddOffset && {
          alignmentOffset
        })
      },
      reset: shouldAddOffset
    };
  }
});

// Make `computeCoords` start from the right place.
      if (placement !== currentPlacement) {
        return {
          reset: {
            placement: placements$1[0]
          }
        };
      }
      const currentOverflows = [overflow[getSide(currentPlacement)], overflow[alignmentSides[0]], overflow[alignmentSides[1]]];
      const allOverflows = [...(((_middlewareData$autoP2 = middlewareData.autoPlacement) == null ? void 0 : _middlewareData$autoP2.overflows) || []), {
        placement: currentPlacement,
        overflows: currentOverflows
      }];
      const nextPlacement = placements$1[currentIndex + 1];

// There are more placements to check.
      if (nextPlacement) {
        return {
          data: {
            index: currentIndex + 1,
            overflows: allOverflows
          },
          reset: {
            placement: nextPlacement
          }
        };
      }
      const placementsSortedByMostSpace = allOverflows.map(d => {
        const alignment = getAlignment(d.placement);
        return [d.placement, alignment && crossAxis ?
        // Check along the mainAxis and main crossAxis side.
        d.overflows.slice(0, 2).reduce((acc, v) => acc + v, 0) :
        // Check only the mainAxis.
        d.overflows[0], d.overflows];
      }).sort((a, b) => a[1] - b[1]);
      const placementsThatFitOnEachSide = placementsSortedByMostSpace.filter(d => d[2].slice(0,
      // Aligned placements should not check their opposite crossAxis
      // side.
      getAlignment(d[0]) ? 2 : 3).every(v => v <= 0));
      const resetPlacement = ((_placementsThatFitOnE = placementsThatFitOnEachSide[0]) == null ? void 0 : _placementsThatFitOnE[0]) || placementsSortedByMostSpace[0][0];
      if (resetPlacement !== placement) {
        return {
          data: {
            index: currentIndex + 1,
            overflows: allOverflows
          },
          reset: {
            placement: resetPlacement
          }
        };
      }
      return {};
    }
  };
};

/**
 * Optimizes the visibility of the floating element by flipping the `placement`
 * in order to keep it in view when the preferred placement(s) will overflow the
 * clipping boundary. Alternative to `autoPlacement`.
 * @see https://floating-ui.com/docs/flip
 */
const flip = function (options) {
  if (options === void 0) {
    options = {};
  }
  return {
    name: 'flip',
    options,
    async fn(state) {
      var _middlewareData$arrow, _middlewareData$flip;
      const {
        placement,
        middlewareData,
        rects,
        initialPlacement,
        platform,
        elements
      } = state;
      const {
        mainAxis: checkMainAxis = true,
        crossAxis: checkCrossAxis = true,
        fallbackPlacements: specifiedFallbackPlacements,
        fallbackStrategy = 'bestFit',
        fallbackAxisSideDirection = 'none',
        flipAlignment = true,
        ...detectOverflowOptions
      } = evaluate(options, state);

// If a reset by the arrow was caused due to an alignment offset being
      // added, we should skip any logic now since `flip()` has already done its
      // work.
      // https://github.com/floating-ui/floating-ui/issues/2549#issuecomment-1719601643
      if ((_middlewareData$arrow = middlewareData.arrow) != null && _middlewareData$arrow.alignmentOffset) {
        return {};
      }
      const side = getSide(placement);
      const initialSideAxis = getSideAxis(initialPlacement);
      const isBasePlacement = getSide(initialPlacement) === initialPlacement;
      const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating));
      const fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipAlignment ? [getOppositePlacement(initialPlacement)] : getExpandedPlacements(initialPlacement));
      const hasFallbackAxisSideDirection = fallbackAxisSideDirection !== 'none';
      if (!specifiedFallbackPlacements && hasFallbackAxisSideDirection) {
        fallbackPlacements.push(...getOppositeAxisPlacements(initialPlacement, flipAlignment, fallbackAxisSideDirection, rtl));
      }
      const placements = [initialPlacement, ...fallbackPlacements];
      const overflow = await detectOverflow(state, detectOverflowOptions);
      const overflows = [];
      let overflowsData = ((_middlewareData$flip = middlewareData.flip) == null ? void 0 : _middlewareData$flip.overflows) || [];
      if (checkMainAxis) {
        overflows.push(overflow[side]);
      }
      if (checkCrossAxis) {
        const sides = getAlignmentSides(placement, rects, rtl);
        overflows.push(overflow[sides[0]], overflow[sides[1]]);
      }
      overflowsData = [...overflowsData, {
        placement,
        overflows
      }];

// One or more sides is overflowing.
      if (!overflows.every(side => side <= 0)) {
        var _middlewareData$flip2, _overflowsData$filter;
        const nextIndex = (((_middlewareData$flip2 = middlewareData.flip) == null ? void 0 : _middlewareData$flip2.index) || 0) + 1;
        const nextPlacement = placements[nextIndex];
        if (nextPlacement) {
          // Try next placement and re-run the lifecycle.
          return {
            data: {
              index: nextIndex,
              overflows: overflowsData
            },
            reset: {
              placement: nextPlacement
            }
          };
        }

// First, find the candidates that fit on the mainAxis side of overflow,
        // then find the placement that fits the best on the main crossAxis side.
        let resetPlacement = (_overflowsData$filter = overflowsData.filter(d => d.overflows[0] <= 0).sort((a, b) => a.overflows[1] - b.overflows[1])[0]) == null ? void 0 : _overflowsData$filter.placement;

// Otherwise fallback.
        if (!resetPlacement) {
          switch (fallbackStrategy) {
            case 'bestFit':
              {
                var _overflowsData$filter2;
                const placement = (_overflowsData$filter2 = overflowsData.filter(d => {
                  if (hasFallbackAxisSideDirection) {
                    const currentSideAxis = getSideAxis(d.placement);
                    return currentSideAxis === initialSideAxis ||
                    // Create a bias to the `y` side axis due to horizontal
                    // reading directions favoring greater width.
                    currentSideAxis === 'y';
                  }
                  return true;
                }).map(d => [d.placement, d.overflows.filter(overflow => overflow > 0).reduce((acc, overflow) => acc + overflow, 0)]).sort((a, b) => a[1] - b[1])[0]) == null ? void 0 : _overflowsData$filter2[0];
                if (placement) {
                  resetPlacement = placement;
                }
                break;
              }
            case 'initialPlacement':
              resetPlacement = initialPlacement;
              break;
          }
        }
        if (placement !== resetPlacement) {
          return {
            reset: {
              placement: resetPlacement
            }
          };
        }
      }
      return {};
    }
  };
};

// For type backwards-compatibility, the `OffsetOptions` type was also
// Derivable.

async function convertValueToCoords(state, options) {
  const {
    placement,
    platform,
    elements
  } = state;
  const rtl = await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating));
  const side = getSide(placement);
  const alignment = getAlignment(placement);
  const isVertical = getSideAxis(placement) === 'y';
  const mainAxisMulti = ['left', 'top'].includes(side) ? -1 : 1;
  const crossAxisMulti = rtl && isVertical ? -1 : 1;
  const rawValue = evaluate(options, state);

// eslint-disable-next-line prefer-const
  let {
    mainAxis,
    crossAxis,
    alignmentAxis
  } = typeof rawValue === 'number' ? {
    mainAxis: rawValue,
    crossAxis: 0,
    alignmentAxis: null
  } : {
    mainAxis: 0,
    crossAxis: 0,
    alignmentAxis: null,
    ...rawValue
  };
  if (alignment && typeof alignmentAxis === 'number') {
    crossAxis = alignment === 'end' ? alignmentAxis * -1 : alignmentAxis;
  }
  return isVertical ? {
    x: crossAxis * crossAxisMulti,
    y: mainAxis * mainAxisMulti
  } : {
    x: mainAxis * mainAxisMulti,
    y: crossAxis * crossAxisMulti
  };
}

/**
 * Modifies the placement by translating the floating element along the
 * specified axes.
 * A number (shorthand for `mainAxis` or distance), or an axes configuration
 * object may be passed.
 * @see https://floating-ui.com/docs/offset
 */
const offset = function (options) {
  if (options === void 0) {
    options = 0;
  }
  return {
    name: 'offset',
    options,
    async fn(state) {
      var _middlewareData$offse, _middlewareData$arrow;
      const {
        x,
        y,
        placement,
        middlewareData
      } = state;
      const diffCoords = await convertValueToCoords(state, options);

// If the placement is the same and the arrow caused an alignment offset
      // then we don't need to change the positioning coordinates.
      if (placement === ((_middlewareData$offse = middlewareData.offset) == null ? void 0 : _middlewareData$offse.placement) && (_middlewareData$arrow = middlewareData.arrow) != null && _middlewareData$arrow.alignmentOffset) {
        return {};
      }
      return {
        x: x + diffCoords.x,
        y: y + diffCoords.y,
        data: {
          ...diffCoords,
          placement
        }
      };
    }
  };
};

/**
 * Optimizes the visibility of the floating element by shifting it in order to
 * keep it in view when it will overflow the clipping boundary.
 * @see https://floating-ui.com/docs/shift
 */
const shift = function (options) {
  if (options === void 0) {
    options = {};
  }
  return {
    name: 'shift',
    options,
    async fn(state) {
      const {
        x,
        y,
        placement
      } = state;
      const {
        mainAxis: checkMainAxis = true,
        crossAxis: checkCrossAxis = false,
        limiter = {
          fn: _ref => {
            let {
              x,
              y
            } = _ref;
            return {
              x,
              y
            };
          }
        },
        ...detectOverflowOptions
      } = evaluate(options, state);
      const coords = {
        x,
        y
      };
      const overflow = await detectOverflow(state, detectOverflowOptions);
      const crossAxis = getSideAxis(getSide(placement));
      const mainAxis = getOppositeAxis(crossAxis);
      let mainAxisCoord = coords[mainAxis];
      let crossAxisCoord = coords[crossAxis];
      if (checkMainAxis) {
        const minSide = mainAxis === 'y' ? 'top' : 'left';
        const maxSide = mainAxis === 'y' ? 'bottom' : 'right';
        const min = mainAxisCoord + overflow[minSide];
        const max = mainAxisCoord - overflow[maxSide];
        mainAxisCoord = clamp$1(min, mainAxisCoord, max);
      }
      if (checkCrossAxis) {
        const minSide = crossAxis === 'y' ? 'top' : 'left';
        const maxSide = crossAxis === 'y' ? 'bottom' : 'right';
        const min = crossAxisCoord + overflow[minSide];
        const max = crossAxisCoord - overflow[maxSide];
        crossAxisCoord = clamp$1(min, crossAxisCoord, max);
      }
      const limitedCoords = limiter.fn({
        ...state,
        [mainAxis]: mainAxisCoord,
        [crossAxis]: crossAxisCoord
      });
      return {
        ...limitedCoords,
        data: {
          x: limitedCoords.x - x,
          y: limitedCoords.y - y
        }
      };
    }
  };
};

/**
 * Provides data that allows you to change the size of the floating element —
 * for instance, prevent it from overflowing the clipping boundary or match the
 * width of the reference element.
 * @see https://floating-ui.com/docs/size
 */
const size = function (options) {
  if (options === void 0) {
    options = {};
  }
  return {
    name: 'size',
    options,
    async fn(state) {
      const {
        placement,
        rects,
        platform,
        elements
      } = state;
      const {
        apply = () => {},
        ...detectOverflowOptions
      } = evaluate(options, state);
      const overflow = await detectOverflow(state, detectOverflowOptions);
      const side = getSide(placement);
      const alignment = getAlignment(placement);
      const isYAxis = getSideAxis(placement) === 'y';
      const {
        width,
        height
      } = rects.floating;
      let heightSide;
      let widthSide;
      if (side === 'top' || side === 'bottom') {
        heightSide = side;
        widthSide = alignment === ((await (platform.isRTL == null ? void 0 : platform.isRTL(elements.floating))) ? 'start' : 'end') ? 'left' : 'right';
      } else {
        widthSide = side;
        heightSide = alignment === 'end' ? 'top' : 'bottom';
      }
      const maximumClippingHeight = height - overflow.top - overflow.bottom;
      const maximumClippingWidth = width - overflow.left - overflow.right;
      const overflowAvailableHeight = min$5(height - overflow[heightSide], maximumClippingHeight);
      const overflowAvailableWidth = min$5(width - overflow[widthSide], maximumClippingWidth);
      const noShift = !state.middlewareData.shift;
      let availableHeight = overflowAvailableHeight;
      let availableWidth = overflowAvailableWidth;
      if (isYAxis) {
        availableWidth = alignment || noShift ? min$5(overflowAvailableWidth, maximumClippingWidth) : maximumClippingWidth;
      } else {
        availableHeight = alignment || noShift ? min$5(overflowAvailableHeight, maximumClippingHeight) : maximumClippingHeight;
      }
      if (noShift && !alignment) {
        const xMin = max$6(overflow.left, 0);
        const xMax = max$6(overflow.right, 0);
        const yMin = max$6(overflow.top, 0);
        const yMax = max$6(overflow.bottom, 0);
        if (isYAxis) {
          availableWidth = width - 2 * (xMin !== 0 || xMax !== 0 ? xMin + xMax : max$6(overflow.left, overflow.right));
        } else {
          availableHeight = height - 2 * (yMin !== 0 || yMax !== 0 ? yMin + yMax : max$6(overflow.top, overflow.bottom));
        }
      }
      await apply({
        ...state,
        availableWidth,
        availableHeight
      });
      const nextDimensions = await platform.getDimensions(elements.floating);
      if (width !== nextDimensions.width || height !== nextDimensions.height) {
        return {
          reset: {
            rects: true
          }
        };
      }
      return {};
    }
  };
};

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

const graphWeightMode = useStorage("vite-inspect-graph-weight-mode", "deps");
function getModuleWeight(mod, mode) {
  const value = 10 + (mode === "deps" ? Math.min(mod.deps.length, 30) : Math.min(mod.plugins.reduce((total, plg) => total + (plg[mode] || 0), 0) / 20, 30));
  return value;
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

async function getViteClient(base = "/", warning = true) {
  try {
    const url = `${base}@vite/client`;
    const res = await fetch(url);
    const text = await res.text();
    if (text.startsWith("<") || !res.headers.get("content-type")?.includes("javascript"))
      throw new Error("Not javascript");
    return await import(
      /* @vite-ignore */
      url
    );
  } catch {
    if (warning)
      console.error(`[vite-hot-client] Failed to import "${base}@vite/client"`);
  }
  return void 0;
}
async function createHotContext(path = "/____", base = "/") {
  const viteClient = await getViteClient(base);
  return viteClient?.createHotContext(path);
}

/* Injected with object hook! */

/**
 * Fuse.js v7.0.0 - Lightweight fuzzy-search (http://fusejs.io)
 *
 * Copyright (c) 2023 Kiro Risk (http://kiro.me)
 * All Rights Reserved. Apache Software License 2.0
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */

function isArray$j(value) {
  return !Array.isArray
    ? getTag(value) === '[object Array]'
    : Array.isArray(value)
}

// Adapted from: https://github.com/lodash/lodash/blob/master/.internal/baseToString.js
const INFINITY = 1 / 0;
function baseToString(value) {
  // Exit early for strings to avoid a performance hit in some environments.
  if (typeof value == 'string') {
    return value
  }
  let result = value + '';
  return result == '0' && 1 / value == -INFINITY ? '-0' : result
}

function toString$e(value) {
  return value == null ? '' : baseToString(value)
}

function isString$2(value) {
  return typeof value === 'string'
}

function isNumber$1(value) {
  return typeof value === 'number'
}

// Adapted from: https://github.com/lodash/lodash/blob/master/isBoolean.js
function isBoolean(value) {
  return (
    value === true ||
    value === false ||
    (isObjectLike(value) && getTag(value) == '[object Boolean]')
  )
}

function isObject$m(value) {
  return typeof value === 'object'
}

// Checks if `value` is object-like.
function isObjectLike(value) {
  return isObject$m(value) && value !== null
}

function isDefined(value) {
  return value !== undefined && value !== null
}

function isBlank(value) {
  return !value.trim().length
}

// Gets the `toStringTag` of `value`.
// Adapted from: https://github.com/lodash/lodash/blob/master/.internal/getTag.js
function getTag(value) {
  return value == null
    ? value === undefined
      ? '[object Undefined]'
      : '[object Null]'
    : Object.prototype.toString.call(value)
}

const EXTENDED_SEARCH_UNAVAILABLE = 'Extended search is not available';

const INCORRECT_INDEX_TYPE = "Incorrect 'index' type";

const LOGICAL_SEARCH_INVALID_QUERY_FOR_KEY = (key) =>
  `Invalid value for key ${key}`;

const PATTERN_LENGTH_TOO_LARGE = (max) =>
  `Pattern length exceeds max of ${max}.`;

const MISSING_KEY_PROPERTY = (name) => `Missing ${name} property in key`;

const INVALID_KEY_WEIGHT_VALUE = (key) =>
  `Property 'weight' in key '${key}' must be a positive integer`;

const hasOwn$l = Object.prototype.hasOwnProperty;

class KeyStore {
  constructor(keys) {
    this._keys = [];
    this._keyMap = {};

let totalWeight = 0;

keys.forEach((key) => {
      let obj = createKey(key);

this._keys.push(obj);
      this._keyMap[obj.id] = obj;

totalWeight += obj.weight;
    });

// Normalize weights so that their sum is equal to 1
    this._keys.forEach((key) => {
      key.weight /= totalWeight;
    });
  }
  get(keyId) {
    return this._keyMap[keyId]
  }
  keys() {
    return this._keys
  }
  toJSON() {
    return JSON.stringify(this._keys)
  }
}

function createKey(key) {
  let path = null;
  let id = null;
  let src = null;
  let weight = 1;
  let getFn = null;

if (isString$2(key) || isArray$j(key)) {
    src = key;
    path = createKeyPath(key);
    id = createKeyId(key);
  } else {
    if (!hasOwn$l.call(key, 'name')) {
      throw new Error(MISSING_KEY_PROPERTY('name'))
    }

const name = key.name;
    src = name;

if (hasOwn$l.call(key, 'weight')) {
      weight = key.weight;

if (weight <= 0) {
        throw new Error(INVALID_KEY_WEIGHT_VALUE(name))
      }
    }

path = createKeyPath(name);
    id = createKeyId(name);
    getFn = key.getFn;
  }

return { path, id, weight, src, getFn }
}

function createKeyPath(key) {
  return isArray$j(key) ? key : key.split('.')
}

function createKeyId(key) {
  return isArray$j(key) ? key.join('.') : key
}

function get$a(obj, path) {
  let list = [];
  let arr = false;

const deepGet = (obj, path, index) => {
    if (!isDefined(obj)) {
      return
    }
    if (!path[index]) {
      // If there's no path left, we've arrived at the object we care about.
      list.push(obj);
    } else {
      let key = path[index];

const value = obj[key];

if (!isDefined(value)) {
        return
      }

// If we're at the last value in the path, and if it's a string/number/bool,
      // add it to the list
      if (
        index === path.length - 1 &&
        (isString$2(value) || isNumber$1(value) || isBoolean(value))
      ) {
        list.push(toString$e(value));
      } else if (isArray$j(value)) {
        arr = true;
        // Search each item in the array.
        for (let i = 0, len = value.length; i < len; i += 1) {
          deepGet(value[i], path, index + 1);
        }
      } else if (path.length) {
        // An object. Recurse further.
        deepGet(value, path, index + 1);
      }
    }
  };

// Backwards compatibility (since path used to be a string)
  deepGet(obj, isString$2(path) ? path.split('.') : path, 0);

return arr ? list : list[0]
}

const MatchOptions = {
  // Whether the matches should be included in the result set. When `true`, each record in the result
  // set will include the indices of the matched characters.
  // These can consequently be used for highlighting purposes.
  includeMatches: false,
  // When `true`, the matching function will continue to the end of a search pattern even if
  // a perfect match has already been located in the string.
  findAllMatches: false,
  // Minimum number of characters that must be matched before a result is considered a match
  minMatchCharLength: 1
};

const BasicOptions = {
  // When `true`, the algorithm continues searching to the end of the input even if a perfect
  // match is found before the end of the same input.
  isCaseSensitive: false,
  // When true, the matching function will continue to the end of a search pattern even if
  includeScore: false,
  // List of properties that will be searched. This also supports nested properties.
  keys: [],
  // Whether to sort the result list, by score
  shouldSort: true,
  // Default sort function: sort by ascending score, ascending index
  sortFn: (a, b) =>
    a.score === b.score ? (a.idx < b.idx ? -1 : 1) : a.score < b.score ? -1 : 1
};

const FuzzyOptions = {
  // Approximately where in the text is the pattern expected to be found?
  location: 0,
  // At what point does the match algorithm give up. A threshold of '0.0' requires a perfect match
  // (of both letters and location), a threshold of '1.0' would match anything.
  threshold: 0.6,
  // Determines how close the match must be to the fuzzy location (specified above).
  // An exact letter match which is 'distance' characters away from the fuzzy location
  // would score as a complete mismatch. A distance of '0' requires the match be at
  // the exact location specified, a threshold of '1000' would require a perfect match
  // to be within 800 characters of the fuzzy location to be found using a 0.8 threshold.
  distance: 100
};

const AdvancedOptions = {
  // When `true`, it enables the use of unix-like search commands
  useExtendedSearch: false,
  // The get function to use when fetching an object's properties.
  // The default will search nested paths *ie foo.bar.baz*
  getFn: get$a,
  // When `true`, search will ignore `location` and `distance`, so it won't matter
  // where in the string the pattern appears.
  // More info: https://fusejs.io/concepts/scoring-theory.html#fuzziness-score
  ignoreLocation: false,
  // When `true`, the calculation for the relevance score (used for sorting) will
  // ignore the field-length norm.
  // More info: https://fusejs.io/concepts/scoring-theory.html#field-length-norm
  ignoreFieldNorm: false,
  // The weight to determine how much field length norm effects scoring.
  fieldNormWeight: 1
};

var Config = {
  ...BasicOptions,
  ...MatchOptions,
  ...FuzzyOptions,
  ...AdvancedOptions
};

const SPACE = /[^ ]+/g;

// Field-length norm: the shorter the field, the higher the weight.
// Set to 3 decimals to reduce index size.
function norm(weight = 1, mantissa = 3) {
  const cache = new Map();
  const m = Math.pow(10, mantissa);

return {
    get(value) {
      const numTokens = value.match(SPACE).length;

if (cache.has(numTokens)) {
        return cache.get(numTokens)
      }

// Default function is 1/sqrt(x), weight makes that variable
      const norm = 1 / Math.pow(numTokens, 0.5 * weight);

// In place of `toFixed(mantissa)`, for faster computation
      const n = parseFloat(Math.round(norm * m) / m);

cache.set(numTokens, n);

return n
    },
    clear() {
      cache.clear();
    }
  }
}

class FuseIndex {
  constructor({
    getFn = Config.getFn,
    fieldNormWeight = Config.fieldNormWeight
  } = {}) {
    this.norm = norm(fieldNormWeight, 3);
    this.getFn = getFn;
    this.isCreated = false;

this.setIndexRecords();
  }
  setSources(docs = []) {
    this.docs = docs;
  }
  setIndexRecords(records = []) {
    this.records = records;
  }
  setKeys(keys = []) {
    this.keys = keys;
    this._keysMap = {};
    keys.forEach((key, idx) => {
      this._keysMap[key.id] = idx;
    });
  }
  create() {
    if (this.isCreated || !this.docs.length) {
      return
    }

this.isCreated = true;

// List is Array<String>
    if (isString$2(this.docs[0])) {
      this.docs.forEach((doc, docIndex) => {
        this._addString(doc, docIndex);
      });
    } else {
      // List is Array<Object>
      this.docs.forEach((doc, docIndex) => {
        this._addObject(doc, docIndex);
      });
    }

this.norm.clear();
  }
  // Adds a doc to the end of the index
  add(doc) {
    const idx = this.size();

if (isString$2(doc)) {
      this._addString(doc, idx);
    } else {
      this._addObject(doc, idx);
    }
  }
  // Removes the doc at the specified index of the index
  removeAt(idx) {
    this.records.splice(idx, 1);

// Change ref index of every subsquent doc
    for (let i = idx, len = this.size(); i < len; i += 1) {
      this.records[i].i -= 1;
    }
  }
  getValueForItemAtKeyId(item, keyId) {
    return item[this._keysMap[keyId]]
  }
  size() {
    return this.records.length
  }
  _addString(doc, docIndex) {
    if (!isDefined(doc) || isBlank(doc)) {
      return
    }

let record = {
      v: doc,
      i: docIndex,
      n: this.norm.get(doc)
    };

this.records.push(record);
  }
  _addObject(doc, docIndex) {
    let record = { i: docIndex, $: {} };

// Iterate over every key (i.e, path), and fetch the value at that key
    this.keys.forEach((key, keyIndex) => {
      let value = key.getFn ? key.getFn(doc) : this.getFn(doc, key.path);

if (!isDefined(value)) {
        return
      }

if (isArray$j(value)) {
        let subRecords = [];
        const stack = [{ nestedArrIndex: -1, value }];

while (stack.length) {
          const { nestedArrIndex, value } = stack.pop();

if (!isDefined(value)) {
            continue
          }

if (isString$2(value) && !isBlank(value)) {
            let subRecord = {
              v: value,
              i: nestedArrIndex,
              n: this.norm.get(value)
            };

subRecords.push(subRecord);
          } else if (isArray$j(value)) {
            value.forEach((item, k) => {
              stack.push({
                nestedArrIndex: k,
                value: item
              });
            });
          } else ;
        }
        record.$[keyIndex] = subRecords;
      } else if (isString$2(value) && !isBlank(value)) {
        let subRecord = {
          v: value,
          n: this.norm.get(value)
        };

record.$[keyIndex] = subRecord;
      }
    });

this.records.push(record);
  }
  toJSON() {
    return {
      keys: this.keys,
      records: this.records
    }
  }
}

function computeScore$1(
  pattern,
  {
    errors = 0,
    currentLocation = 0,
    expectedLocation = 0,
    distance = Config.distance,
    ignoreLocation = Config.ignoreLocation
  } = {}
) {
  const accuracy = errors / pattern.length;

if (ignoreLocation) {
    return accuracy
  }

const proximity = Math.abs(expectedLocation - currentLocation);

if (!distance) {
    // Dodge divide by zero error.
    return proximity ? 1.0 : accuracy
  }

return accuracy + proximity / distance
}

function convertMaskToIndices(
  matchmask = [],
  minMatchCharLength = Config.minMatchCharLength
) {
  let indices = [];
  let start = -1;
  let end = -1;
  let i = 0;

for (let len = matchmask.length; i < len; i += 1) {
    let match = matchmask[i];
    if (match && start === -1) {
      start = i;
    } else if (!match && start !== -1) {
      end = i - 1;
      if (end - start + 1 >= minMatchCharLength) {
        indices.push([start, end]);
      }
      start = -1;
    }
  }

// (i-1 - start) + 1 => i - start
  if (matchmask[i - 1] && i - start >= minMatchCharLength) {
    indices.push([start, i - 1]);
  }

return indices
}

// Machine word size
const MAX_BITS = 32;

function search(
  text,
  pattern,
  patternAlphabet,
  {
    location = Config.location,
    distance = Config.distance,
    threshold = Config.threshold,
    findAllMatches = Config.findAllMatches,
    minMatchCharLength = Config.minMatchCharLength,
    includeMatches = Config.includeMatches,
    ignoreLocation = Config.ignoreLocation
  } = {}
) {
  if (pattern.length > MAX_BITS) {
    throw new Error(PATTERN_LENGTH_TOO_LARGE(MAX_BITS))
  }

const patternLen = pattern.length;
  // Set starting location at beginning text and initialize the alphabet.
  const textLen = text.length;
  // Handle the case when location > text.length
  const expectedLocation = Math.max(0, Math.min(location, textLen));
  // Highest score beyond which we give up.
  let currentThreshold = threshold;
  // Is there a nearby exact match? (speedup)
  let bestLocation = expectedLocation;

// Performance: only computer matches when the minMatchCharLength > 1
  // OR if `includeMatches` is true.
  const computeMatches = minMatchCharLength > 1 || includeMatches;
  // A mask of the matches, used for building the indices
  const matchMask = computeMatches ? Array(textLen) : [];

let index;

// Get all exact matches, here for speed up
  while ((index = text.indexOf(pattern, bestLocation)) > -1) {
    let score = computeScore$1(pattern, {
      currentLocation: index,
      expectedLocation,
      distance,
      ignoreLocation
    });

currentThreshold = Math.min(score, currentThreshold);
    bestLocation = index + patternLen;

if (computeMatches) {
      let i = 0;
      while (i < patternLen) {
        matchMask[index + i] = 1;
        i += 1;
      }
    }
  }

// Reset the best location
  bestLocation = -1;

let lastBitArr = [];
  let finalScore = 1;
  let binMax = patternLen + textLen;

const mask = 1 << (patternLen - 1);

for (let i = 0; i < patternLen; i += 1) {
    // Scan for the best match; each iteration allows for one more error.
    // Run a binary search to determine how far from the match location we can stray
    // at this error level.
    let binMin = 0;
    let binMid = binMax;

while (binMin < binMid) {
      const score = computeScore$1(pattern, {
        errors: i,
        currentLocation: expectedLocation + binMid,
        expectedLocation,
        distance,
        ignoreLocation
      });

if (score <= currentThreshold) {
        binMin = binMid;
      } else {
        binMax = binMid;
      }

binMid = Math.floor((binMax - binMin) / 2 + binMin);
    }

// Use the result from this iteration as the maximum for the next.
    binMax = binMid;

let start = Math.max(1, expectedLocation - binMid + 1);
    let finish = findAllMatches
      ? textLen
      : Math.min(expectedLocation + binMid, textLen) + patternLen;

// Initialize the bit array
    let bitArr = Array(finish + 2);

bitArr[finish + 1] = (1 << i) - 1;

for (let j = finish; j >= start; j -= 1) {
      let currentLocation = j - 1;
      let charMatch = patternAlphabet[text.charAt(currentLocation)];

if (computeMatches) {
        // Speed up: quick bool to int conversion (i.e, `charMatch ? 1 : 0`)
        matchMask[currentLocation] = +!!charMatch;
      }

// First pass: exact match
      bitArr[j] = ((bitArr[j + 1] << 1) | 1) & charMatch;

// Subsequent passes: fuzzy match
      if (i) {
        bitArr[j] |=
          ((lastBitArr[j + 1] | lastBitArr[j]) << 1) | 1 | lastBitArr[j + 1];
      }

if (bitArr[j] & mask) {
        finalScore = computeScore$1(pattern, {
          errors: i,
          currentLocation,
          expectedLocation,
          distance,
          ignoreLocation
        });

// This match will almost certainly be better than any existing match.
        // But check anyway.
        if (finalScore <= currentThreshold) {
          // Indeed it is
          currentThreshold = finalScore;
          bestLocation = currentLocation;

// Already passed `loc`, downhill from here on in.
          if (bestLocation <= expectedLocation) {
            break
          }

// When passing `bestLocation`, don't exceed our current distance from `expectedLocation`.
          start = Math.max(1, 2 * expectedLocation - bestLocation);
        }
      }
    }

// No hope for a (better) match at greater error levels.
    const score = computeScore$1(pattern, {
      errors: i + 1,
      currentLocation: expectedLocation,
      expectedLocation,
      distance,
      ignoreLocation
    });

if (score > currentThreshold) {
      break
    }

lastBitArr = bitArr;
  }

const result = {
    isMatch: bestLocation >= 0,
    // Count exact matches (those with a score of 0) to be "almost" exact
    score: Math.max(0.001, finalScore)
  };

if (computeMatches) {
    const indices = convertMaskToIndices(matchMask, minMatchCharLength);
    if (!indices.length) {
      result.isMatch = false;
    } else if (includeMatches) {
      result.indices = indices;
    }
  }

return result
}

function createPatternAlphabet(pattern) {
  let mask = {};

for (let i = 0, len = pattern.length; i < len; i += 1) {
    const char = pattern.charAt(i);
    mask[char] = (mask[char] || 0) | (1 << (len - i - 1));
  }

return mask
}

class BitapSearch {
  constructor(
    pattern,
    {
      location = Config.location,
      threshold = Config.threshold,
      distance = Config.distance,
      includeMatches = Config.includeMatches,
      findAllMatches = Config.findAllMatches,
      minMatchCharLength = Config.minMatchCharLength,
      isCaseSensitive = Config.isCaseSensitive,
      ignoreLocation = Config.ignoreLocation
    } = {}
  ) {
    this.options = {
      location,
      threshold,
      distance,
      includeMatches,
      findAllMatches,
      minMatchCharLength,
      isCaseSensitive,
      ignoreLocation
    };

this.pattern = isCaseSensitive ? pattern : pattern.toLowerCase();

this.chunks = [];

if (!this.pattern.length) {
      return
    }

const addChunk = (pattern, startIndex) => {
      this.chunks.push({
        pattern,
        alphabet: createPatternAlphabet(pattern),
        startIndex
      });
    };

const len = this.pattern.length;

if (len > MAX_BITS) {
      let i = 0;
      const remainder = len % MAX_BITS;
      const end = len - remainder;

while (i < end) {
        addChunk(this.pattern.substr(i, MAX_BITS), i);
        i += MAX_BITS;
      }

if (remainder) {
        const startIndex = len - MAX_BITS;
        addChunk(this.pattern.substr(startIndex), startIndex);
      }
    } else {
      addChunk(this.pattern, 0);
    }
  }

searchIn(text) {
    const { isCaseSensitive, includeMatches } = this.options;

if (!isCaseSensitive) {
      text = text.toLowerCase();
    }

// Exact match
    if (this.pattern === text) {
      let result = {
        isMatch: true,
        score: 0
      };

if (includeMatches) {
        result.indices = [[0, text.length - 1]];
      }

return result
    }

// Otherwise, use Bitap algorithm
    const {
      location,
      distance,
      threshold,
      findAllMatches,
      minMatchCharLength,
      ignoreLocation
    } = this.options;

let allIndices = [];
    let totalScore = 0;
    let hasMatches = false;

this.chunks.forEach(({ pattern, alphabet, startIndex }) => {
      const { isMatch, score, indices } = search(text, pattern, alphabet, {
        location: location + startIndex,
        distance,
        threshold,
        findAllMatches,
        minMatchCharLength,
        includeMatches,
        ignoreLocation
      });

if (isMatch) {
        hasMatches = true;
      }

totalScore += score;

if (isMatch && indices) {
        allIndices = [...allIndices, ...indices];
      }
    });

let result = {
      isMatch: hasMatches,
      score: hasMatches ? totalScore / this.chunks.length : 1
    };

if (hasMatches && includeMatches) {
      result.indices = allIndices;
    }

return result
  }
}

class BaseMatch {
  constructor(pattern) {
    this.pattern = pattern;
  }
  static isMultiMatch(pattern) {
    return getMatch(pattern, this.multiRegex)
  }
  static isSingleMatch(pattern) {
    return getMatch(pattern, this.singleRegex)
  }
  search(/*text*/) {}
}

function getMatch(pattern, exp) {
  const matches = pattern.match(exp);
  return matches ? matches[1] : null
}

// Token: 'file

class ExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'exact'
  }
  static get multiRegex() {
    return /^="(.*)"$/
  }
  static get singleRegex() {
    return /^=(.*)$/
  }
  search(text) {
    const isMatch = text === this.pattern;

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [0, this.pattern.length - 1]
    }
  }
}

// Token: !fire

class InverseExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'inverse-exact'
  }
  static get multiRegex() {
    return /^!"(.*)"$/
  }
  static get singleRegex() {
    return /^!(.*)$/
  }
  search(text) {
    const index = text.indexOf(this.pattern);
    const isMatch = index === -1;

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [0, text.length - 1]
    }
  }
}

// Token: ^file

class PrefixExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'prefix-exact'
  }
  static get multiRegex() {
    return /^\^"(.*)"$/
  }
  static get singleRegex() {
    return /^\^(.*)$/
  }
  search(text) {
    const isMatch = text.startsWith(this.pattern);

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [0, this.pattern.length - 1]
    }
  }
}

// Token: !^fire

class InversePrefixExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'inverse-prefix-exact'
  }
  static get multiRegex() {
    return /^!\^"(.*)"$/
  }
  static get singleRegex() {
    return /^!\^(.*)$/
  }
  search(text) {
    const isMatch = !text.startsWith(this.pattern);

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [0, text.length - 1]
    }
  }
}

// Token: .file$

class SuffixExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'suffix-exact'
  }
  static get multiRegex() {
    return /^"(.*)"\$$/
  }
  static get singleRegex() {
    return /^(.*)\$$/
  }
  search(text) {
    const isMatch = text.endsWith(this.pattern);

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [text.length - this.pattern.length, text.length - 1]
    }
  }
}

// Token: !.file$

class InverseSuffixExactMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'inverse-suffix-exact'
  }
  static get multiRegex() {
    return /^!"(.*)"\$$/
  }
  static get singleRegex() {
    return /^!(.*)\$$/
  }
  search(text) {
    const isMatch = !text.endsWith(this.pattern);
    return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices: [0, text.length - 1]
    }
  }
}

class FuzzyMatch extends BaseMatch {
  constructor(
    pattern,
    {
      location = Config.location,
      threshold = Config.threshold,
      distance = Config.distance,
      includeMatches = Config.includeMatches,
      findAllMatches = Config.findAllMatches,
      minMatchCharLength = Config.minMatchCharLength,
      isCaseSensitive = Config.isCaseSensitive,
      ignoreLocation = Config.ignoreLocation
    } = {}
  ) {
    super(pattern);
    this._bitapSearch = new BitapSearch(pattern, {
      location,
      threshold,
      distance,
      includeMatches,
      findAllMatches,
      minMatchCharLength,
      isCaseSensitive,
      ignoreLocation
    });
  }
  static get type() {
    return 'fuzzy'
  }
  static get multiRegex() {
    return /^"(.*)"$/
  }
  static get singleRegex() {
    return /^(.*)$/
  }
  search(text) {
    return this._bitapSearch.searchIn(text)
  }
}

// Token: 'file

class IncludeMatch extends BaseMatch {
  constructor(pattern) {
    super(pattern);
  }
  static get type() {
    return 'include'
  }
  static get multiRegex() {
    return /^'"(.*)"$/
  }
  static get singleRegex() {
    return /^'(.*)$/
  }
  search(text) {
    let location = 0;
    let index;

const indices = [];
    const patternLen = this.pattern.length;

// Get all exact matches
    while ((index = text.indexOf(this.pattern, location)) > -1) {
      location = index + patternLen;
      indices.push([index, location - 1]);
    }

const isMatch = !!indices.length;

return {
      isMatch,
      score: isMatch ? 0 : 1,
      indices
    }
  }
}

// ❗Order is important. DO NOT CHANGE.
const searchers = [
  ExactMatch,
  IncludeMatch,
  PrefixExactMatch,
  InversePrefixExactMatch,
  InverseSuffixExactMatch,
  SuffixExactMatch,
  InverseExactMatch,
  FuzzyMatch
];

const searchersLen = searchers.length;

// Regex to split by spaces, but keep anything in quotes together
const SPACE_RE = / +(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/;
const OR_TOKEN = '|';

// Return a 2D array representation of the query, for simpler parsing.
// Example:
// "^core go$ | rb$ | py$ xy$" => [["^core", "go$"], ["rb$"], ["py$", "xy$"]]
function parseQuery$1(pattern, options = {}) {
  return pattern.split(OR_TOKEN).map((item) => {
    let query = item
      .trim()
      .split(SPACE_RE)
      .filter((item) => item && !!item.trim());

let results = [];
    for (let i = 0, len = query.length; i < len; i += 1) {
      const queryItem = query[i];

// 1. Handle multiple query match (i.e, once that are quoted, like `"hello world"`)
      let found = false;
      let idx = -1;
      while (!found && ++idx < searchersLen) {
        const searcher = searchers[idx];
        let token = searcher.isMultiMatch(queryItem);
        if (token) {
          results.push(new searcher(token, options));
          found = true;
        }
      }

if (found) {
        continue
      }

// 2. Handle single query matches (i.e, once that are *not* quoted)
      idx = -1;
      while (++idx < searchersLen) {
        const searcher = searchers[idx];
        let token = searcher.isSingleMatch(queryItem);
        if (token) {
          results.push(new searcher(token, options));
          break
        }
      }
    }

return results
  })
}

// These extended matchers can return an array of matches, as opposed
// to a singl match
const MultiMatchSet = new Set([FuzzyMatch.type, IncludeMatch.type]);

/**
 * Command-like searching
 * ======================
 *
 * Given multiple search terms delimited by spaces.e.g. `^jscript .python$ ruby !java`,
 * search in a given text.
 *
 * Search syntax:
 *
 * | Token       | Match type                 | Description                            |
 * | ----------- | -------------------------- | -------------------------------------- |
 * | `jscript`   | fuzzy-match                | Items that fuzzy match `jscript`       |
 * | `=scheme`   | exact-match                | Items that are `scheme`                |
 * | `'python`   | include-match              | Items that include `python`            |
 * | `!ruby`     | inverse-exact-match        | Items that do not include `ruby`       |
 * | `^java`     | prefix-exact-match         | Items that start with `java`           |
 * | `!^earlang` | inverse-prefix-exact-match | Items that do not start with `earlang` |
 * | `.js$`      | suffix-exact-match         | Items that end with `.js`              |
 * | `!.go$`     | inverse-suffix-exact-match | Items that do not end with `.go`       |
 *
 * A single pipe character acts as an OR operator. For example, the following
 * query matches entries that start with `core` and end with either`go`, `rb`,
 * or`py`.
 *
 * ```
 * ^core go$ | rb$ | py$
 * ```
 */
class ExtendedSearch {
  constructor(
    pattern,
    {
      isCaseSensitive = Config.isCaseSensitive,
      includeMatches = Config.includeMatches,
      minMatchCharLength = Config.minMatchCharLength,
      ignoreLocation = Config.ignoreLocation,
      findAllMatches = Config.findAllMatches,
      location = Config.location,
      threshold = Config.threshold,
      distance = Config.distance
    } = {}
  ) {
    this.query = null;
    this.options = {
      isCaseSensitive,
      includeMatches,
      minMatchCharLength,
      findAllMatches,
      ignoreLocation,
      location,
      threshold,
      distance
    };

this.pattern = isCaseSensitive ? pattern : pattern.toLowerCase();
    this.query = parseQuery$1(this.pattern, this.options);
  }

static condition(_, options) {
    return options.useExtendedSearch
  }

searchIn(text) {
    const query = this.query;

if (!query) {
      return {
        isMatch: false,
        score: 1
      }
    }

const { includeMatches, isCaseSensitive } = this.options;

text = isCaseSensitive ? text : text.toLowerCase();

let numMatches = 0;
    let allIndices = [];
    let totalScore = 0;

// ORs
    for (let i = 0, qLen = query.length; i < qLen; i += 1) {
      const searchers = query[i];

// Reset indices
      allIndices.length = 0;
      numMatches = 0;

// ANDs
      for (let j = 0, pLen = searchers.length; j < pLen; j += 1) {
        const searcher = searchers[j];
        const { isMatch, indices, score } = searcher.search(text);

if (isMatch) {
          numMatches += 1;
          totalScore += score;
          if (includeMatches) {
            const type = searcher.constructor.type;
            if (MultiMatchSet.has(type)) {
              allIndices = [...allIndices, ...indices];
            } else {
              allIndices.push(indices);
            }
          }
        } else {
          totalScore = 0;
          numMatches = 0;
          allIndices.length = 0;
          break
        }
      }

// OR condition, so if TRUE, return
      if (numMatches) {
        let result = {
          isMatch: true,
          score: totalScore / numMatches
        };

if (includeMatches) {
          result.indices = allIndices;
        }

return result
      }
    }

// Nothing was matched
    return {
      isMatch: false,
      score: 1
    }
  }
}

const registeredSearchers = [];

function register$2(...args) {
  registeredSearchers.push(...args);
}

function createSearcher(pattern, options) {
  for (let i = 0, len = registeredSearchers.length; i < len; i += 1) {
    let searcherClass = registeredSearchers[i];
    if (searcherClass.condition(pattern, options)) {
      return new searcherClass(pattern, options)
    }
  }

return new BitapSearch(pattern, options)
}

const LogicalOperator = {
  AND: '$and',
  OR: '$or'
};

const KeyType = {
  PATH: '$path',
  PATTERN: '$val'
};

const isExpression = (query) =>
  !!(query[LogicalOperator.AND] || query[LogicalOperator.OR]);

const isPath$1 = (query) => !!query[KeyType.PATH];

const isLeaf = (query) =>
  !isArray$j(query) && isObject$m(query) && !isExpression(query);

const convertToExplicit = (query) => ({
  [LogicalOperator.AND]: Object.keys(query).map((key) => ({
    [key]: query[key]
  }))
});

// When `auto` is `true`, the parse function will infer and initialize and add
// the appropriate `Searcher` instance
function parse$1(query, options, { auto = true } = {}) {
  const next = (query) => {
    let keys = Object.keys(query);

const isQueryPath = isPath$1(query);

if (!isQueryPath && keys.length > 1 && !isExpression(query)) {
      return next(convertToExplicit(query))
    }

if (isLeaf(query)) {
      const key = isQueryPath ? query[KeyType.PATH] : keys[0];

const pattern = isQueryPath ? query[KeyType.PATTERN] : query[key];

if (!isString$2(pattern)) {
        throw new Error(LOGICAL_SEARCH_INVALID_QUERY_FOR_KEY(key))
      }

const obj = {
        keyId: createKeyId(key),
        pattern
      };

if (auto) {
        obj.searcher = createSearcher(pattern, options);
      }

return obj
    }

let node = {
      children: [],
      operator: keys[0]
    };

keys.forEach((key) => {
      const value = query[key];

if (isArray$j(value)) {
        value.forEach((item) => {
          node.children.push(next(item));
        });
      }
    });

return node
  };

if (!isExpression(query)) {
    query = convertToExplicit(query);
  }

return next(query)
}

// Practical scoring function
function computeScore(
  results,
  { ignoreFieldNorm = Config.ignoreFieldNorm }
) {
  results.forEach((result) => {
    let totalScore = 1;

result.matches.forEach(({ key, norm, score }) => {
      const weight = key ? key.weight : null;

totalScore *= Math.pow(
        score === 0 && weight ? Number.EPSILON : score,
        (weight || 1) * (ignoreFieldNorm ? 1 : norm)
      );
    });

result.score = totalScore;
  });
}

function transformMatches(result, data) {
  const matches = result.matches;
  data.matches = [];

if (!isDefined(matches)) {
    return
  }

matches.forEach((match) => {
    if (!isDefined(match.indices) || !match.indices.length) {
      return
    }

const { indices, value } = match;

let obj = {
      indices,
      value
    };

if (match.key) {
      obj.key = match.key.src;
    }

if (match.idx > -1) {
      obj.refIndex = match.idx;
    }

data.matches.push(obj);
  });
}

function transformScore(result, data) {
  data.score = result.score;
}

function format$1(
  results,
  docs,
  {
    includeMatches = Config.includeMatches,
    includeScore = Config.includeScore
  } = {}
) {
  const transformers = [];

if (includeMatches) transformers.push(transformMatches);
  if (includeScore) transformers.push(transformScore);

return results.map((result) => {
    const { idx } = result;

const data = {
      item: docs[idx],
      refIndex: idx
    };

if (transformers.length) {
      transformers.forEach((transformer) => {
        transformer(result, data);
      });
    }

return data
  })
}

class Fuse {
  constructor(docs, options = {}, index) {
    this.options = { ...Config, ...options };

if (
      this.options.useExtendedSearch &&
      !true
    ) {
      throw new Error(EXTENDED_SEARCH_UNAVAILABLE)
    }

this._keyStore = new KeyStore(this.options.keys);

this.setCollection(docs, index);
  }

setCollection(docs, index) {
    this._docs = docs;

if (index && !(index instanceof FuseIndex)) {
      throw new Error(INCORRECT_INDEX_TYPE)
    }

this._myIndex =
      index ||
      createIndex(this.options.keys, this._docs, {
        getFn: this.options.getFn,
        fieldNormWeight: this.options.fieldNormWeight
      });
  }

add(doc) {
    if (!isDefined(doc)) {
      return
    }

this._docs.push(doc);
    this._myIndex.add(doc);
  }

remove(predicate = (/* doc, idx */) => false) {
    const results = [];

for (let i = 0, len = this._docs.length; i < len; i += 1) {
      const doc = this._docs[i];
      if (predicate(doc, i)) {
        this.removeAt(i);
        i -= 1;
        len -= 1;

results.push(doc);
      }
    }

return results
  }

removeAt(idx) {
    this._docs.splice(idx, 1);
    this._myIndex.removeAt(idx);
  }

getIndex() {
    return this._myIndex
  }

search(query, { limit = -1 } = {}) {
    const {
      includeMatches,
      includeScore,
      shouldSort,
      sortFn,
      ignoreFieldNorm
    } = this.options;

let results = isString$2(query)
      ? isString$2(this._docs[0])
        ? this._searchStringList(query)
        : this._searchObjectList(query)
      : this._searchLogical(query);

computeScore(results, { ignoreFieldNorm });

if (shouldSort) {
      results.sort(sortFn);
    }

if (isNumber$1(limit) && limit > -1) {
      results = results.slice(0, limit);
    }

return format$1(results, this._docs, {
      includeMatches,
      includeScore
    })
  }

_searchStringList(query) {
    const searcher = createSearcher(query, this.options);
    const { records } = this._myIndex;
    const results = [];

// Iterate over every string in the index
    records.forEach(({ v: text, i: idx, n: norm }) => {
      if (!isDefined(text)) {
        return
      }

const { isMatch, score, indices } = searcher.searchIn(text);

if (isMatch) {
        results.push({
          item: text,
          idx,
          matches: [{ score, value: text, norm, indices }]
        });
      }
    });

return results
  }

_searchLogical(query) {

const expression = parse$1(query, this.options);

const evaluate = (node, item, idx) => {
      if (!node.children) {
        const { keyId, searcher } = node;

const matches = this._findMatches({
          key: this._keyStore.get(keyId),
          value: this._myIndex.getValueForItemAtKeyId(item, keyId),
          searcher
        });

if (matches && matches.length) {
          return [
            {
              idx,
              item,
              matches
            }
          ]
        }

return []
      }

const records = this._myIndex.records;
    const resultMap = {};
    const results = [];

records.forEach(({ $: item, i: idx }) => {
      if (isDefined(item)) {
        let expResults = evaluate(expression, item, idx);

if (expResults.length) {
          // Dedupe when adding
          if (!resultMap[idx]) {
            resultMap[idx] = { idx, item, matches: [] };
            results.push(resultMap[idx]);
          }
          expResults.forEach(({ matches }) => {
            resultMap[idx].matches.push(...matches);
          });
        }
      }
    });

return results
  }

_searchObjectList(query) {
    const searcher = createSearcher(query, this.options);
    const { keys, records } = this._myIndex;
    const results = [];

// List is Array<Object>
    records.forEach(({ $: item, i: idx }) => {
      if (!isDefined(item)) {
        return
      }

let matches = [];

// Iterate over every key (i.e, path), and fetch the value at that key
      keys.forEach((key, keyIndex) => {
        matches.push(
          ...this._findMatches({
            key,
            value: item[keyIndex],
            searcher
          })
        );
      });

if (matches.length) {
        results.push({
          idx,
          item,
          matches
        });
      }
    });

return results
  }
  _findMatches({ key, value, searcher }) {
    if (!isDefined(value)) {
      return []
    }

let matches = [];

if (isArray$j(value)) {
      value.forEach(({ v: text, i: idx, n: norm }) => {
        if (!isDefined(text)) {
          return
        }

const { isMatch, score, indices } = searcher.searchIn(text);

if (isMatch) {
          matches.push({
            score,
            key,
            value: text,
            idx,
            norm,
            indices
          });
        }
      });
    } else {
      const { v: text, n: norm } = value;

const { isMatch, score, indices } = searcher.searchIn(text);

if (isMatch) {
        matches.push({ score, key, value: text, norm, indices });
      }
    }

return matches
  }
}

Fuse.version = '7.0.0';
Fuse.createIndex = createIndex;
Fuse.parseIndex = parseIndex;
Fuse.config = Config;

{
  Fuse.parseQuery = parse$1;
}

{
  register$2(ExtendedSearch);
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/*!
  * vue-router v4.5.0
  * (c) 2024 Eduardo San Martin Morote
  * @license MIT
  */
const isBrowser = typeof document !== "undefined";
function isRouteComponent(component) {
  return typeof component === "object" || "displayName" in component || "props" in component || "__vccOpts" in component;
}
function isESModule(obj) {
  return obj.__esModule || obj[Symbol.toStringTag] === "Module" || // support CF with dynamic imports that do not
  // add the Module string tag
  obj.default && isRouteComponent(obj.default);
}
const assign$7 = Object.assign;
function applyToParams(fn, params) {
  const newParams = {};
  for (const key in params) {
    const value = params[key];
    newParams[key] = isArray$i(value) ? value.map(fn) : fn(value);
  }
  return newParams;
}
const noop$3 = () => {
};
const isArray$i = Array.isArray;
const HASH_RE = /#/g;
const AMPERSAND_RE = /&/g;
const SLASH_RE = /\//g;
const EQUAL_RE = /=/g;
const IM_RE = /\?/g;
const PLUS_RE = /\+/g;
const ENC_BRACKET_OPEN_RE = /%5B/g;
const ENC_BRACKET_CLOSE_RE = /%5D/g;
const ENC_CARET_RE = /%5E/g;
const ENC_BACKTICK_RE = /%60/g;
const ENC_CURLY_OPEN_RE = /%7B/g;
const ENC_PIPE_RE = /%7C/g;
const ENC_CURLY_CLOSE_RE = /%7D/g;
const ENC_SPACE_RE = /%20/g;
function commonEncode(text) {
  return encodeURI("" + text).replace(ENC_PIPE_RE, "|").replace(ENC_BRACKET_OPEN_RE, "[").replace(ENC_BRACKET_CLOSE_RE, "]");
}
function encodeHash(text) {
  return commonEncode(text).replace(ENC_CURLY_OPEN_RE, "{").replace(ENC_CURLY_CLOSE_RE, "}").replace(ENC_CARET_RE, "^");
}
function encodeQueryValue(text) {
  return commonEncode(text).replace(PLUS_RE, "%2B").replace(ENC_SPACE_RE, "+").replace(HASH_RE, "%23").replace(AMPERSAND_RE, "%26").replace(ENC_BACKTICK_RE, "`").replace(ENC_CURLY_OPEN_RE, "{").replace(ENC_CURLY_CLOSE_RE, "}").replace(ENC_CARET_RE, "^");
}
function encodeQueryKey(text) {
  return encodeQueryValue(text).replace(EQUAL_RE, "%3D");
}
function encodePath(text) {
  return commonEncode(text).replace(HASH_RE, "%23").replace(IM_RE, "%3F");
}
function encodeParam(text) {
  return text == null ? "" : encodePath(text).replace(SLASH_RE, "%2F");
}
function decode(text) {
  try {
    return decodeURIComponent("" + text);
  } catch (err) {
  }
  return "" + text;
}
const TRAILING_SLASH_RE = /\/$/;
const removeTrailingSlash = (path) => path.replace(TRAILING_SLASH_RE, "");
function parseURL(parseQuery2, location2, currentLocation = "/") {
  let path, query = {}, searchString = "", hash = "";
  const hashPos = location2.indexOf("#");
  let searchPos = location2.indexOf("?");
  if (hashPos < searchPos && hashPos >= 0) {
    searchPos = -1;
  }
  if (searchPos > -1) {
    path = location2.slice(0, searchPos);
    searchString = location2.slice(searchPos + 1, hashPos > -1 ? hashPos : location2.length);
    query = parseQuery2(searchString);
  }
  if (hashPos > -1) {
    path = path || location2.slice(0, hashPos);
    hash = location2.slice(hashPos, location2.length);
  }
  path = resolveRelativePath(path != null ? path : location2, currentLocation);
  return {
    fullPath: path + (searchString && "?") + searchString + hash,
    path,
    query,
    hash: decode(hash)
  };
}
function stringifyURL(stringifyQuery2, location2) {
  const query = location2.query ? stringifyQuery2(location2.query) : "";
  return location2.path + (query && "?") + query + (location2.hash || "");
}
function stripBase(pathname, base) {
  if (!base || !pathname.toLowerCase().startsWith(base.toLowerCase()))
    return pathname;
  return pathname.slice(base.length) || "/";
}
function isSameRouteLocation(stringifyQuery2, a, b) {
  const aLastIndex = a.matched.length - 1;
  const bLastIndex = b.matched.length - 1;
  return aLastIndex > -1 && aLastIndex === bLastIndex && isSameRouteRecord(a.matched[aLastIndex], b.matched[bLastIndex]) && isSameRouteLocationParams(a.params, b.params) && stringifyQuery2(a.query) === stringifyQuery2(b.query) && a.hash === b.hash;
}
function isSameRouteRecord(a, b) {
  return (a.aliasOf || a) === (b.aliasOf || b);
}
function isSameRouteLocationParams(a, b) {
  if (Object.keys(a).length !== Object.keys(b).length)
    return false;
  for (const key in a) {
    if (!isSameRouteLocationParamsValue(a[key], b[key]))
      return false;
  }
  return true;
}
function isSameRouteLocationParamsValue(a, b) {
  return isArray$i(a) ? isEquivalentArray(a, b) : isArray$i(b) ? isEquivalentArray(b, a) : a === b;
}
function isEquivalentArray(a, b) {
  return isArray$i(b) ? a.length === b.length && a.every((value, i) => value === b[i]) : a.length === 1 && a[0] === b;
}
function resolveRelativePath(to, from) {
  if (to.startsWith("/"))
    return to;
  if (!to)
    return from;
  const fromSegments = from.split("/");
  const toSegments = to.split("/");
  const lastToSegment = toSegments[toSegments.length - 1];
  if (lastToSegment === ".." || lastToSegment === ".") {
    toSegments.push("");
  }
  let position = fromSegments.length - 1;
  let toPosition;
  let segment;
  for (toPosition = 0; toPosition < toSegments.length; toPosition++) {
    segment = toSegments[toPosition];
    if (segment === ".")
      continue;
    if (segment === "..") {
      if (position > 1)
        position--;
    } else
      break;
  }
  return fromSegments.slice(0, position).join("/") + "/" + toSegments.slice(toPosition).join("/");
}
const START_LOCATION_NORMALIZED = {
  path: "/",
  // TODO: could we use a symbol in the future?
  name: void 0,
  params: {},
  query: {},
  hash: "",
  fullPath: "/",
  matched: [],
  meta: {},
  redirectedFrom: void 0
};
var NavigationType;
(function(NavigationType2) {
  NavigationType2["pop"] = "pop";
  NavigationType2["push"] = "push";
})(NavigationType || (NavigationType = {}));
var NavigationDirection;
(function(NavigationDirection2) {
  NavigationDirection2["back"] = "back";
  NavigationDirection2["forward"] = "forward";
  NavigationDirection2["unknown"] = "";
})(NavigationDirection || (NavigationDirection = {}));
function normalizeBase(base) {
  if (!base) {
    if (isBrowser) {
      const baseEl = document.querySelector("base");
      base = baseEl && baseEl.getAttribute("href") || "/";
      base = base.replace(/^\w+:\/\/[^\/]+/, "");
    } else {
      base = "/";
    }
  }
  if (base[0] !== "/" && base[0] !== "#")
    base = "/" + base;
  return removeTrailingSlash(base);
}
const BEFORE_HASH_RE = /^[^#]+#/;
function createHref(base, location2) {
  return base.replace(BEFORE_HASH_RE, "#") + location2;
}
function getElementPosition(el, offset) {
  const docRect = document.documentElement.getBoundingClientRect();
  const elRect = el.getBoundingClientRect();
  return {
    behavior: offset.behavior,
    left: elRect.left - docRect.left - (offset.left || 0),
    top: elRect.top - docRect.top - (offset.top || 0)
  };
}
const computeScrollPosition = () => ({
  left: window.scrollX,
  top: window.scrollY
});
function scrollToPosition(position) {
  let scrollToOptions;
  if ("el" in position) {
    const positionEl = position.el;
    const isIdSelector = typeof positionEl === "string" && positionEl.startsWith("#");
    const el = typeof positionEl === "string" ? isIdSelector ? document.getElementById(positionEl.slice(1)) : document.querySelector(positionEl) : positionEl;
    if (!el) {
      return;
    }
    scrollToOptions = getElementPosition(el, position);
  } else {
    scrollToOptions = position;
  }
  if ("scrollBehavior" in document.documentElement.style)
    window.scrollTo(scrollToOptions);
  else {
    window.scrollTo(scrollToOptions.left != null ? scrollToOptions.left : window.scrollX, scrollToOptions.top != null ? scrollToOptions.top : window.scrollY);
  }
}
function getScrollKey(path, delta) {
  const position = history.state ? history.state.position - delta : -1;
  return position + path;
}
const scrollPositions = /* @__PURE__ */ new Map();
function saveScrollPosition(key, scrollPosition) {
  scrollPositions.set(key, scrollPosition);
}
function getSavedScrollPosition(key) {
  const scroll = scrollPositions.get(key);
  scrollPositions.delete(key);
  return scroll;
}
let createBaseLocation = () => location.protocol + "//" + location.host;
function createCurrentLocation(base, location2) {
  const { pathname, search, hash } = location2;
  const hashPos = base.indexOf("#");
  if (hashPos > -1) {
    let slicePos = hash.includes(base.slice(hashPos)) ? base.slice(hashPos).length : 1;
    let pathFromHash = hash.slice(slicePos);
    if (pathFromHash[0] !== "/")
      pathFromHash = "/" + pathFromHash;
    return stripBase(pathFromHash, "");
  }
  const path = stripBase(pathname, base);
  return path + search + hash;
}
function useHistoryListeners(base, historyState, currentLocation, replace) {
  let listeners = [];
  let teardowns = [];
  let pauseState = null;
  const popStateHandler = ({ state }) => {
    const to = createCurrentLocation(base, location);
    const from = currentLocation.value;
    const fromState = historyState.value;
    let delta = 0;
    if (state) {
      currentLocation.value = to;
      historyState.value = state;
      if (pauseState && pauseState === from) {
        pauseState = null;
        return;
      }
      delta = fromState ? state.position - fromState.position : 0;
    } else {
      replace(to);
    }
    listeners.forEach((listener) => {
      listener(currentLocation.value, from, {
        delta,
        type: NavigationType.pop,
        direction: delta ? delta > 0 ? NavigationDirection.forward : NavigationDirection.back : NavigationDirection.unknown
      });
    });
  };
  function pauseListeners() {
    pauseState = currentLocation.value;
  }
  function listen(callback) {
    listeners.push(callback);
    const teardown = () => {
      const index = listeners.indexOf(callback);
      if (index > -1)
        listeners.splice(index, 1);
    };
    teardowns.push(teardown);
    return teardown;
  }
  function beforeUnloadListener() {
    const { history: history2 } = window;
    if (!history2.state)
      return;
    history2.replaceState(assign$7({}, history2.state, { scroll: computeScrollPosition() }), "");
  }
  function destroy() {
    for (const teardown of teardowns)
      teardown();
    teardowns = [];
    window.removeEventListener("popstate", popStateHandler);
    window.removeEventListener("beforeunload", beforeUnloadListener);
  }
  window.addEventListener("popstate", popStateHandler);
  window.addEventListener("beforeunload", beforeUnloadListener, {
    passive: true
  });
  return {
    pauseListeners,
    listen,
    destroy
  };
}
function buildState(back, current, forward, replaced = false, computeScroll = false) {
  return {
    back,
    current,
    forward,
    replaced,
    position: window.history.length,
    scroll: computeScroll ? computeScrollPosition() : null
  };
}
function useHistoryStateNavigation(base) {
  const { history: history2, location: location2 } = window;
  const currentLocation = {
    value: createCurrentLocation(base, location2)
  };
  const historyState = { value: history2.state };
  if (!historyState.value) {
    changeLocation(currentLocation.value, {
      back: null,
      current: currentLocation.value,
      forward: null,
      // the length is off by one, we need to decrease it
      position: history2.length - 1,
      replaced: true,
      // don't add a scroll as the user may have an anchor, and we want
      // scrollBehavior to be triggered without a saved position
      scroll: null
    }, true);
  }
  function changeLocation(to, state, replace2) {
    const hashIndex = base.indexOf("#");
    const url = hashIndex > -1 ? (location2.host && document.querySelector("base") ? base : base.slice(hashIndex)) + to : createBaseLocation() + base + to;
    try {
      history2[replace2 ? "replaceState" : "pushState"](state, "", url);
      historyState.value = state;
    } catch (err) {
      {
        console.error(err);
      }
      location2[replace2 ? "replace" : "assign"](url);
    }
  }
  function replace(to, data) {
    const state = assign$7({}, history2.state, buildState(
      historyState.value.back,
      // keep back and forward entries but override current position
      to,
      historyState.value.forward,
      true
    ), data, { position: historyState.value.position });
    changeLocation(to, state, true);
    currentLocation.value = to;
  }
  function push(to, data) {
    const currentState = assign$7(
      {},
      // use current history state to gracefully handle a wrong call to
      // history.replaceState
      // https://github.com/vuejs/router/issues/366
      historyState.value,
      history2.state,
      {
        forward: to,
        scroll: computeScrollPosition()
      }
    );
    changeLocation(currentState.current, currentState, true);
    const state = assign$7({}, buildState(currentLocation.value, to, null), { position: currentState.position + 1 }, data);
    changeLocation(to, state, false);
    currentLocation.value = to;
  }
  return {
    location: currentLocation,
    state: historyState,
    push,
    replace
  };
}
function createWebHistory(base) {
  base = normalizeBase(base);
  const historyNavigation = useHistoryStateNavigation(base);
  const historyListeners = useHistoryListeners(base, historyNavigation.state, historyNavigation.location, historyNavigation.replace);
  function go(delta, triggerListeners = true) {
    if (!triggerListeners)
      historyListeners.pauseListeners();
    history.go(delta);
  }
  const routerHistory = assign$7({
    // it's overridden right after
    location: "",
    base,
    go,
    createHref: createHref.bind(null, base)
  }, historyNavigation, historyListeners);
  Object.defineProperty(routerHistory, "location", {
    enumerable: true,
    get: () => historyNavigation.location.value
  });
  Object.defineProperty(routerHistory, "state", {
    enumerable: true,
    get: () => historyNavigation.state.value
  });
  return routerHistory;
}
function createWebHashHistory(base) {
  base = location.host ? base || location.pathname + location.search : "";
  if (!base.includes("#"))
    base += "#";
  return createWebHistory(base);
}
function isRouteLocation(route) {
  return typeof route === "string" || route && typeof route === "object";
}
function isRouteName(name) {
  return typeof name === "string" || typeof name === "symbol";
}
const NavigationFailureSymbol = Symbol("");
var NavigationFailureType;
(function(NavigationFailureType2) {
  NavigationFailureType2[NavigationFailureType2["aborted"] = 4] = "aborted";
  NavigationFailureType2[NavigationFailureType2["cancelled"] = 8] = "cancelled";
  NavigationFailureType2[NavigationFailureType2["duplicated"] = 16] = "duplicated";
})(NavigationFailureType || (NavigationFailureType = {}));
function createRouterError(type, params) {
  {
    return assign$7(new Error(), {
      type,
      [NavigationFailureSymbol]: true
    }, params);
  }
}
function isNavigationFailure(error, type) {
  return error instanceof Error && NavigationFailureSymbol in error && (type == null || !!(error.type & type));
}
const BASE_PARAM_PATTERN = "[^/]+?";
const BASE_PATH_PARSER_OPTIONS = {
  sensitive: false,
  strict: false,
  start: true,
  end: true
};
const REGEX_CHARS_RE = /[.+*?^${}()[\]/\\]/g;
function tokensToParser(segments, extraOptions) {
  const options = assign$7({}, BASE_PATH_PARSER_OPTIONS, extraOptions);
  const score = [];
  let pattern = options.start ? "^" : "";
  const keys = [];
  for (const segment of segments) {
    const segmentScores = segment.length ? [] : [
      90
      /* PathScore.Root */
    ];
    if (options.strict && !segment.length)
      pattern += "/";
    for (let tokenIndex = 0; tokenIndex < segment.length; tokenIndex++) {
      const token = segment[tokenIndex];
      let subSegmentScore = 40 + (options.sensitive ? 0.25 : 0);
      if (token.type === 0) {
        if (!tokenIndex)
          pattern += "/";
        pattern += token.value.replace(REGEX_CHARS_RE, "\\$&");
        subSegmentScore += 40;
      } else if (token.type === 1) {
        const { value, repeatable, optional, regexp } = token;
        keys.push({
          name: value,
          repeatable,
          optional
        });
        const re2 = regexp ? regexp : BASE_PARAM_PATTERN;
        if (re2 !== BASE_PARAM_PATTERN) {
          subSegmentScore += 10;
          try {
            new RegExp(`(${re2})`);
          } catch (err) {
            throw new Error(`Invalid custom RegExp for param "${value}" (${re2}): ` + err.message);
          }
        }
        let subPattern = repeatable ? `((?:${re2})(?:/(?:${re2}))*)` : `(${re2})`;
        if (!tokenIndex)
          subPattern = // avoid an optional / if there are more segments e.g. /:p?-static
          // or /:p?-:p2
          optional && segment.length < 2 ? `(?:/${subPattern})` : "/" + subPattern;
        if (optional)
          subPattern += "?";
        pattern += subPattern;
        subSegmentScore += 20;
        if (optional)
          subSegmentScore += -8;
        if (repeatable)
          subSegmentScore += -20;
        if (re2 === ".*")
          subSegmentScore += -50;
      }
      segmentScores.push(subSegmentScore);
    }
    score.push(segmentScores);
  }
  if (options.strict && options.end) {
    const i = score.length - 1;
    score[i][score[i].length - 1] += 0.7000000000000001;
  }
  if (!options.strict)
    pattern += "/?";
  if (options.end)
    pattern += "$";
  else if (options.strict && !pattern.endsWith("/"))
    pattern += "(?:/|$)";
  const re = new RegExp(pattern, options.sensitive ? "" : "i");
  function parse(path) {
    const match = path.match(re);
    const params = {};
    if (!match)
      return null;
    for (let i = 1; i < match.length; i++) {
      const value = match[i] || "";
      const key = keys[i - 1];
      params[key.name] = value && key.repeatable ? value.split("/") : value;
    }
    return params;
  }
  function stringify(params) {
    let path = "";
    let avoidDuplicatedSlash = false;
    for (const segment of segments) {
      if (!avoidDuplicatedSlash || !path.endsWith("/"))
        path += "/";
      avoidDuplicatedSlash = false;
      for (const token of segment) {
        if (token.type === 0) {
          path += token.value;
        } else if (token.type === 1) {
          const { value, repeatable, optional } = token;
          const param = value in params ? params[value] : "";
          if (isArray$i(param) && !repeatable) {
            throw new Error(`Provided param "${value}" is an array but it is not repeatable (* or + modifiers)`);
          }
          const text = isArray$i(param) ? param.join("/") : param;
          if (!text) {
            if (optional) {
              if (segment.length < 2) {
                if (path.endsWith("/"))
                  path = path.slice(0, -1);
                else
                  avoidDuplicatedSlash = true;
              }
            } else
              throw new Error(`Missing required param "${value}"`);
          }
          path += text;
        }
      }
    }
    return path || "/";
  }
  return {
    re,
    score,
    keys,
    parse,
    stringify
  };
}
function compareScoreArray(a, b) {
  let i = 0;
  while (i < a.length && i < b.length) {
    const diff = b[i] - a[i];
    if (diff)
      return diff;
    i++;
  }
  if (a.length < b.length) {
    return a.length === 1 && a[0] === 40 + 40 ? -1 : 1;
  } else if (a.length > b.length) {
    return b.length === 1 && b[0] === 40 + 40 ? 1 : -1;
  }
  return 0;
}
function comparePathParserScore(a, b) {
  let i = 0;
  const aScore = a.score;
  const bScore = b.score;
  while (i < aScore.length && i < bScore.length) {
    const comp = compareScoreArray(aScore[i], bScore[i]);
    if (comp)
      return comp;
    i++;
  }
  if (Math.abs(bScore.length - aScore.length) === 1) {
    if (isLastScoreNegative(aScore))
      return 1;
    if (isLastScoreNegative(bScore))
      return -1;
  }
  return bScore.length - aScore.length;
}
function isLastScoreNegative(score) {
  const last = score[score.length - 1];
  return score.length > 0 && last[last.length - 1] < 0;
}
const ROOT_TOKEN = {
  type: 0,
  value: ""
};
const VALID_PARAM_RE = /[a-zA-Z0-9_]/;
function tokenizePath(path) {
  if (!path)
    return [[]];
  if (path === "/")
    return [[ROOT_TOKEN]];
  if (!path.startsWith("/")) {
    throw new Error(`Invalid path "${path}"`);
  }
  function crash(message) {
    throw new Error(`ERR (${state})/"${buffer}": ${message}`);
  }
  let state = 0;
  let previousState = state;
  const tokens = [];
  let segment;
  function finalizeSegment() {
    if (segment)
      tokens.push(segment);
    segment = [];
  }
  let i = 0;
  let char;
  let buffer = "";
  let customRe = "";
  function consumeBuffer() {
    if (!buffer)
      return;
    if (state === 0) {
      segment.push({
        type: 0,
        value: buffer
      });
    } else if (state === 1 || state === 2 || state === 3) {
      if (segment.length > 1 && (char === "*" || char === "+"))
        crash(`A repeatable param (${buffer}) must be alone in its segment. eg: '/:ids+.`);
      segment.push({
        type: 1,
        value: buffer,
        regexp: customRe,
        repeatable: char === "*" || char === "+",
        optional: char === "*" || char === "?"
      });
    } else {
      crash("Invalid state to consume buffer");
    }
    buffer = "";
  }
  function addCharToBuffer() {
    buffer += char;
  }
  while (i < path.length) {
    char = path[i++];
    if (char === "\\" && state !== 2) {
      previousState = state;
      state = 4;
      continue;
    }
    switch (state) {
      case 0:
        if (char === "/") {
          if (buffer) {
            consumeBuffer();
          }
          finalizeSegment();
        } else if (char === ":") {
          consumeBuffer();
          state = 1;
        } else {
          addCharToBuffer();
        }
        break;
      case 4:
        addCharToBuffer();
        state = previousState;
        break;
      case 1:
        if (char === "(") {
          state = 2;
        } else if (VALID_PARAM_RE.test(char)) {
          addCharToBuffer();
        } else {
          consumeBuffer();
          state = 0;
          if (char !== "*" && char !== "?" && char !== "+")
            i--;
        }
        break;
      case 2:
        if (char === ")") {
          if (customRe[customRe.length - 1] == "\\")
            customRe = customRe.slice(0, -1) + char;
          else
            state = 3;
        } else {
          customRe += char;
        }
        break;
      case 3:
        consumeBuffer();
        state = 0;
        if (char !== "*" && char !== "?" && char !== "+")
          i--;
        customRe = "";
        break;
      default:
        crash("Unknown state");
        break;
    }
  }
  if (state === 2)
    crash(`Unfinished custom RegExp for param "${buffer}"`);
  consumeBuffer();
  finalizeSegment();
  return tokens;
}
function createRouteRecordMatcher(record, parent, options) {
  const parser = tokensToParser(tokenizePath(record.path), options);
  const matcher = assign$7(parser, {
    record,
    parent,
    // these needs to be populated by the parent
    children: [],
    alias: []
  });
  if (parent) {
    if (!matcher.record.aliasOf === !parent.record.aliasOf)
      parent.children.push(matcher);
  }
  return matcher;
}
function createRouterMatcher(routes, globalOptions) {
  const matchers = [];
  const matcherMap = /* @__PURE__ */ new Map();
  globalOptions = mergeOptions$1({ strict: false, end: true, sensitive: false }, globalOptions);
  function getRecordMatcher(name) {
    return matcherMap.get(name);
  }
  function addRoute(record, parent, originalRecord) {
    const isRootAdd = !originalRecord;
    const mainNormalizedRecord = normalizeRouteRecord(record);
    mainNormalizedRecord.aliasOf = originalRecord && originalRecord.record;
    const options = mergeOptions$1(globalOptions, record);
    const normalizedRecords = [mainNormalizedRecord];
    if ("alias" in record) {
      const aliases = typeof record.alias === "string" ? [record.alias] : record.alias;
      for (const alias of aliases) {
        normalizedRecords.push(
          // we need to normalize again to ensure the `mods` property
          // being non enumerable
          normalizeRouteRecord(assign$7({}, mainNormalizedRecord, {
            // this allows us to hold a copy of the `components` option
            // so that async components cache is hold on the original record
            components: originalRecord ? originalRecord.record.components : mainNormalizedRecord.components,
            path: alias,
            // we might be the child of an alias
            aliasOf: originalRecord ? originalRecord.record : mainNormalizedRecord
            // the aliases are always of the same kind as the original since they
            // are defined on the same record
          }))
        );
      }
    }
    let matcher;
    let originalMatcher;
    for (const normalizedRecord of normalizedRecords) {
      const { path } = normalizedRecord;
      if (parent && path[0] !== "/") {
        const parentPath = parent.record.path;
        const connectingSlash = parentPath[parentPath.length - 1] === "/" ? "" : "/";
        normalizedRecord.path = parent.record.path + (path && connectingSlash + path);
      }
      matcher = createRouteRecordMatcher(normalizedRecord, parent, options);
      if (originalRecord) {
        originalRecord.alias.push(matcher);
      } else {
        originalMatcher = originalMatcher || matcher;
        if (originalMatcher !== matcher)
          originalMatcher.alias.push(matcher);
        if (isRootAdd && record.name && !isAliasRecord(matcher)) {
          removeRoute(record.name);
        }
      }
      if (isMatchable(matcher)) {
        insertMatcher(matcher);
      }
      if (mainNormalizedRecord.children) {
        const children = mainNormalizedRecord.children;
        for (let i = 0; i < children.length; i++) {
          addRoute(children[i], matcher, originalRecord && originalRecord.children[i]);
        }
      }
      originalRecord = originalRecord || matcher;
    }
    return originalMatcher ? () => {
      removeRoute(originalMatcher);
    } : noop$3;
  }
  function removeRoute(matcherRef) {
    if (isRouteName(matcherRef)) {
      const matcher = matcherMap.get(matcherRef);
      if (matcher) {
        matcherMap.delete(matcherRef);
        matchers.splice(matchers.indexOf(matcher), 1);
        matcher.children.forEach(removeRoute);
        matcher.alias.forEach(removeRoute);
      }
    } else {
      const index = matchers.indexOf(matcherRef);
      if (index > -1) {
        matchers.splice(index, 1);
        if (matcherRef.record.name)
          matcherMap.delete(matcherRef.record.name);
        matcherRef.children.forEach(removeRoute);
        matcherRef.alias.forEach(removeRoute);
      }
    }
  }
  function getRoutes() {
    return matchers;
  }
  function insertMatcher(matcher) {
    const index = findInsertionIndex(matcher, matchers);
    matchers.splice(index, 0, matcher);
    if (matcher.record.name && !isAliasRecord(matcher))
      matcherMap.set(matcher.record.name, matcher);
  }
  function resolve(location2, currentLocation) {
    let matcher;
    let params = {};
    let path;
    let name;
    if ("name" in location2 && location2.name) {
      matcher = matcherMap.get(location2.name);
      if (!matcher)
        throw createRouterError(1, {
          location: location2
        });
      name = matcher.record.name;
      params = assign$7(
        // paramsFromLocation is a new object
        paramsFromLocation(
          currentLocation.params,
          // only keep params that exist in the resolved location
          // only keep optional params coming from a parent record
          matcher.keys.filter((k) => !k.optional).concat(matcher.parent ? matcher.parent.keys.filter((k) => k.optional) : []).map((k) => k.name)
        ),
        // discard any existing params in the current location that do not exist here
        // #1497 this ensures better active/exact matching
        location2.params && paramsFromLocation(location2.params, matcher.keys.map((k) => k.name))
      );
      path = matcher.stringify(params);
    } else if (location2.path != null) {
      path = location2.path;
      matcher = matchers.find((m) => m.re.test(path));
      if (matcher) {
        params = matcher.parse(path);
        name = matcher.record.name;
      }
    } else {
      matcher = currentLocation.name ? matcherMap.get(currentLocation.name) : matchers.find((m) => m.re.test(currentLocation.path));
      if (!matcher)
        throw createRouterError(1, {
          location: location2,
          currentLocation
        });
      name = matcher.record.name;
      params = assign$7({}, currentLocation.params, location2.params);
      path = matcher.stringify(params);
    }
    const matched = [];
    let parentMatcher = matcher;
    while (parentMatcher) {
      matched.unshift(parentMatcher.record);
      parentMatcher = parentMatcher.parent;
    }
    return {
      name,
      path,
      params,
      matched,
      meta: mergeMetaFields(matched)
    };
  }
  routes.forEach((route) => addRoute(route));
  function clearRoutes() {
    matchers.length = 0;
    matcherMap.clear();
  }
  return {
    addRoute,
    resolve,
    removeRoute,
    clearRoutes,
    getRoutes,
    getRecordMatcher
  };
}
function paramsFromLocation(params, keys) {
  const newParams = {};
  for (const key of keys) {
    if (key in params)
      newParams[key] = params[key];
  }
  return newParams;
}
function normalizeRouteRecord(record) {
  const normalized = {
    path: record.path,
    redirect: record.redirect,
    name: record.name,
    meta: record.meta || {},
    aliasOf: record.aliasOf,
    beforeEnter: record.beforeEnter,
    props: normalizeRecordProps(record),
    children: record.children || [],
    instances: {},
    leaveGuards: /* @__PURE__ */ new Set(),
    updateGuards: /* @__PURE__ */ new Set(),
    enterCallbacks: {},
    // must be declared afterwards
    // mods: {},
    components: "components" in record ? record.components || null : record.component && { default: record.component }
  };
  Object.defineProperty(normalized, "mods", {
    value: {}
  });
  return normalized;
}
function normalizeRecordProps(record) {
  const propsObject = {};
  const props = record.props || false;
  if ("component" in record) {
    propsObject.default = props;
  } else {
    for (const name in record.components)
      propsObject[name] = typeof props === "object" ? props[name] : props;
  }
  return propsObject;
}
function isAliasRecord(record) {
  while (record) {
    if (record.record.aliasOf)
      return true;
    record = record.parent;
  }
  return false;
}
function mergeMetaFields(matched) {
  return matched.reduce((meta, record) => assign$7(meta, record.meta), {});
}
function mergeOptions$1(defaults, partialOptions) {
  const options = {};
  for (const key in defaults) {
    options[key] = key in partialOptions ? partialOptions[key] : defaults[key];
  }
  return options;
}
function findInsertionIndex(matcher, matchers) {
  let lower = 0;
  let upper = matchers.length;
  while (lower !== upper) {
    const mid = lower + upper >> 1;
    const sortOrder = comparePathParserScore(matcher, matchers[mid]);
    if (sortOrder < 0) {
      upper = mid;
    } else {
      lower = mid + 1;
    }
  }
  const insertionAncestor = getInsertionAncestor(matcher);
  if (insertionAncestor) {
    upper = matchers.lastIndexOf(insertionAncestor, upper - 1);
  }
  return upper;
}
function getInsertionAncestor(matcher) {
  let ancestor = matcher;
  while (ancestor = ancestor.parent) {
    if (isMatchable(ancestor) && comparePathParserScore(matcher, ancestor) === 0) {
      return ancestor;
    }
  }
  return;
}
function isMatchable({ record }) {
  return !!(record.name || record.components && Object.keys(record.components).length || record.redirect);
}
function parseQuery(search) {
  const query = {};
  if (search === "" || search === "?")
    return query;
  const hasLeadingIM = search[0] === "?";
  const searchParams = (hasLeadingIM ? search.slice(1) : search).split("&");
  for (let i = 0; i < searchParams.length; ++i) {
    const searchParam = searchParams[i].replace(PLUS_RE, " ");
    const eqPos = searchParam.indexOf("=");
    const key = decode(eqPos < 0 ? searchParam : searchParam.slice(0, eqPos));
    const value = eqPos < 0 ? null : decode(searchParam.slice(eqPos + 1));
    if (key in query) {
      let currentValue = query[key];
      if (!isArray$i(currentValue)) {
        currentValue = query[key] = [currentValue];
      }
      currentValue.push(value);
    } else {
      query[key] = value;
    }
  }
  return query;
}
function stringifyQuery(query) {
  let search = "";
  for (let key in query) {
    const value = query[key];
    key = encodeQueryKey(key);
    if (value == null) {
      if (value !== void 0) {
        search += (search.length ? "&" : "") + key;
      }
      continue;
    }
    const values = isArray$i(value) ? value.map((v) => v && encodeQueryValue(v)) : [value && encodeQueryValue(value)];
    values.forEach((value2) => {
      if (value2 !== void 0) {
        search += (search.length ? "&" : "") + key;
        if (value2 != null)
          search += "=" + value2;
      }
    });
  }
  return search;
}
function normalizeQuery(query) {
  const normalizedQuery = {};
  for (const key in query) {
    const value = query[key];
    if (value !== void 0) {
      normalizedQuery[key] = isArray$i(value) ? value.map((v) => v == null ? null : "" + v) : value == null ? value : "" + value;
    }
  }
  return normalizedQuery;
}
const matchedRouteKey = Symbol("");
const viewDepthKey = Symbol("");
const routerKey = Symbol("");
const routeLocationKey = Symbol("");
const routerViewLocationKey = Symbol("");
function useCallbacks() {
  let handlers = [];
  function add(handler) {
    handlers.push(handler);
    return () => {
      const i = handlers.indexOf(handler);
      if (i > -1)
        handlers.splice(i, 1);
    };
  }
  function reset() {
    handlers = [];
  }
  return {
    add,
    list: () => handlers.slice(),
    reset
  };
}
function guardToPromiseFn(guard, to, from, record, name, runWithContext = (fn) => fn()) {
  const enterCallbackArray = record && // name is defined if record is because of the function overload
  (record.enterCallbacks[name] = record.enterCallbacks[name] || []);
  return () => new Promise((resolve, reject) => {
    const next = (valid) => {
      if (valid === false) {
        reject(createRouterError(4, {
          from,
          to
        }));
      } else if (valid instanceof Error) {
        reject(valid);
      } else if (isRouteLocation(valid)) {
        reject(createRouterError(2, {
          from: to,
          to: valid
        }));
      } else {
        if (enterCallbackArray && // since enterCallbackArray is truthy, both record and name also are
        record.enterCallbacks[name] === enterCallbackArray && typeof valid === "function") {
          enterCallbackArray.push(valid);
        }
        resolve();
      }
    };
    const guardReturn = runWithContext(() => guard.call(record && record.instances[name], to, from, next));
    let guardCall = Promise.resolve(guardReturn);
    if (guard.length < 3)
      guardCall = guardCall.then(next);
    guardCall.catch((err) => reject(err));
  });
}
function extractComponentsGuards(matched, guardType, to, from, runWithContext = (fn) => fn()) {
  const guards = [];
  for (const record of matched) {
    for (const name in record.components) {
      let rawComponent = record.components[name];
      if (guardType !== "beforeRouteEnter" && !record.instances[name])
        continue;
      if (isRouteComponent(rawComponent)) {
        const options = rawComponent.__vccOpts || rawComponent;
        const guard = options[guardType];
        guard && guards.push(guardToPromiseFn(guard, to, from, record, name, runWithContext));
      } else {
        let componentPromise = rawComponent();
        guards.push(() => componentPromise.then((resolved) => {
          if (!resolved)
            throw new Error(`Couldn't resolve component "${name}" at "${record.path}"`);
          const resolvedComponent = isESModule(resolved) ? resolved.default : resolved;
          record.mods[name] = resolved;
          record.components[name] = resolvedComponent;
          const options = resolvedComponent.__vccOpts || resolvedComponent;
          const guard = options[guardType];
          return guard && guardToPromiseFn(guard, to, from, record, name, runWithContext)();
        }));
      }
    }
  }
  return guards;
}
function useLink(props) {
  const router = inject(routerKey);
  const currentRoute = inject(routeLocationKey);
  const route = computed(() => {
    const to = unref(props.to);
    return router.resolve(to);
  });
  const activeRecordIndex = computed(() => {
    const { matched } = route.value;
    const { length } = matched;
    const routeMatched = matched[length - 1];
    const currentMatched = currentRoute.matched;
    if (!routeMatched || !currentMatched.length)
      return -1;
    const index = currentMatched.findIndex(isSameRouteRecord.bind(null, routeMatched));
    if (index > -1)
      return index;
    const parentRecordPath = getOriginalPath(matched[length - 2]);
    return (
      // we are dealing with nested routes
      length > 1 && // if the parent and matched route have the same path, this link is
      // referring to the empty child. Or we currently are on a different
      // child of the same parent
      getOriginalPath(routeMatched) === parentRecordPath && // avoid comparing the child with its parent
      currentMatched[currentMatched.length - 1].path !== parentRecordPath ? currentMatched.findIndex(isSameRouteRecord.bind(null, matched[length - 2])) : index
    );
  });
  const isActive = computed(() => activeRecordIndex.value > -1 && includesParams(currentRoute.params, route.value.params));
  const isExactActive = computed(() => activeRecordIndex.value > -1 && activeRecordIndex.value === currentRoute.matched.length - 1 && isSameRouteLocationParams(currentRoute.params, route.value.params));
  function navigate(e = {}) {
    if (guardEvent(e)) {
      const p = router[unref(props.replace) ? "replace" : "push"](
        unref(props.to)
        // avoid uncaught errors are they are logged anyway
      ).catch(noop$3);
      if (props.viewTransition && typeof document !== "undefined" && "startViewTransition" in document) {
        document.startViewTransition(() => p);
      }
      return p;
    }
    return Promise.resolve();
  }
  return {
    route,
    href: computed(() => route.value.href),
    isActive,
    isExactActive,
    navigate
  };
}
function preferSingleVNode(vnodes) {
  return vnodes.length === 1 ? vnodes[0] : vnodes;
}
const RouterLinkImpl = /* @__PURE__ */ defineComponent({
  name: "RouterLink",
  compatConfig: { MODE: 3 },
  props: {
    to: {
      type: [String, Object],
      required: true
    },
    replace: Boolean,
    activeClass: String,
    // inactiveClass: String,
    exactActiveClass: String,
    custom: Boolean,
    ariaCurrentValue: {
      type: String,
      default: "page"
    }
  },
  useLink,
  setup(props, { slots }) {
    const link = reactive(useLink(props));
    const { options } = inject(routerKey);
    const elClass = computed(() => ({
      [getLinkClass(props.activeClass, options.linkActiveClass, "router-link-active")]: link.isActive,
      // [getLinkClass(
      //   props.inactiveClass,
      //   options.linkInactiveClass,
      //   'router-link-inactive'
      // )]: !link.isExactActive,
      [getLinkClass(props.exactActiveClass, options.linkExactActiveClass, "router-link-exact-active")]: link.isExactActive
    }));
    return () => {
      const children = slots.default && preferSingleVNode(slots.default(link));
      return props.custom ? children : h$2("a", {
        "aria-current": link.isExactActive ? props.ariaCurrentValue : null,
        href: link.href,
        // this would override user added attrs but Vue will still add
        // the listener, so we end up triggering both
        onClick: link.navigate,
        class: elClass.value
      }, children);
    };
  }
});
const RouterLink = RouterLinkImpl;
function guardEvent(e) {
  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey)
    return;
  if (e.defaultPrevented)
    return;
  if (e.button !== void 0 && e.button !== 0)
    return;
  if (e.currentTarget && e.currentTarget.getAttribute) {
    const target = e.currentTarget.getAttribute("target");
    if (/\b_blank\b/i.test(target))
      return;
  }
  if (e.preventDefault)
    e.preventDefault();
  return true;
}
function includesParams(outer, inner) {
  for (const key in inner) {
    const innerValue = inner[key];
    const outerValue = outer[key];
    if (typeof innerValue === "string") {
      if (innerValue !== outerValue)
        return false;
    } else {
      if (!isArray$i(outerValue) || outerValue.length !== innerValue.length || innerValue.some((value, i) => value !== outerValue[i]))
        return false;
    }
  }
  return true;
}
function getOriginalPath(record) {
  return record ? record.aliasOf ? record.aliasOf.path : record.path : "";
}
const getLinkClass = (propClass, globalClass, defaultClass) => propClass != null ? propClass : globalClass != null ? globalClass : defaultClass;
const RouterViewImpl = /* @__PURE__ */ defineComponent({
  name: "RouterView",
  // #674 we manually inherit them
  inheritAttrs: false,
  props: {
    name: {
      type: String,
      default: "default"
    },
    route: Object
  },
  // Better compat for @vue/compat users
  // https://github.com/vuejs/router/issues/1315
  compatConfig: { MODE: 3 },
  setup(props, { attrs, slots }) {
    const injectedRoute = inject(routerViewLocationKey);
    const routeToDisplay = computed(() => props.route || injectedRoute.value);
    const injectedDepth = inject(viewDepthKey, 0);
    const depth = computed(() => {
      let initialDepth = unref(injectedDepth);
      const { matched } = routeToDisplay.value;
      let matchedRoute;
      while ((matchedRoute = matched[initialDepth]) && !matchedRoute.components) {
        initialDepth++;
      }
      return initialDepth;
    });
    const matchedRouteRef = computed(() => routeToDisplay.value.matched[depth.value]);
    provide(viewDepthKey, computed(() => depth.value + 1));
    provide(matchedRouteKey, matchedRouteRef);
    provide(routerViewLocationKey, routeToDisplay);
    const viewRef = ref();
    watch(() => [viewRef.value, matchedRouteRef.value, props.name], ([instance, to, name], [oldInstance, from, oldName]) => {
      if (to) {
        to.instances[name] = instance;
        if (from && from !== to && instance && instance === oldInstance) {
          if (!to.leaveGuards.size) {
            to.leaveGuards = from.leaveGuards;
          }
          if (!to.updateGuards.size) {
            to.updateGuards = from.updateGuards;
          }
        }
      }
      if (instance && to && // if there is no instance but to and from are the same this might be
      // the first visit
      (!from || !isSameRouteRecord(to, from) || !oldInstance)) {
        (to.enterCallbacks[name] || []).forEach((callback) => callback(instance));
      }
    }, { flush: "post" });
    return () => {
      const route = routeToDisplay.value;
      const currentName = props.name;
      const matchedRoute = matchedRouteRef.value;
      const ViewComponent = matchedRoute && matchedRoute.components[currentName];
      if (!ViewComponent) {
        return normalizeSlot(slots.default, { Component: ViewComponent, route });
      }
      const routePropsOption = matchedRoute.props[currentName];
      const routeProps = routePropsOption ? routePropsOption === true ? route.params : typeof routePropsOption === "function" ? routePropsOption(route) : routePropsOption : null;
      const onVnodeUnmounted = (vnode) => {
        if (vnode.component.isUnmounted) {
          matchedRoute.instances[currentName] = null;
        }
      };
      const component = h$2(ViewComponent, assign$7({}, routeProps, attrs, {
        onVnodeUnmounted,
        ref: viewRef
      }));
      return (
        // pass the vnode to the slot as a prop.
        // h and <component :is="..."> both accept vnodes
        normalizeSlot(slots.default, { Component: component, route }) || component
      );
    };
  }
});
function normalizeSlot(slot, data) {
  if (!slot)
    return null;
  const slotContent = slot(data);
  return slotContent.length === 1 ? slotContent[0] : slotContent;
}
const RouterView = RouterViewImpl;
function createRouter(options) {
  const matcher = createRouterMatcher(options.routes, options);
  const parseQuery$1 = options.parseQuery || parseQuery;
  const stringifyQuery$1 = options.stringifyQuery || stringifyQuery;
  const routerHistory = options.history;
  const beforeGuards = useCallbacks();
  const beforeResolveGuards = useCallbacks();
  const afterGuards = useCallbacks();
  const currentRoute = shallowRef(START_LOCATION_NORMALIZED);
  let pendingLocation = START_LOCATION_NORMALIZED;
  if (isBrowser && options.scrollBehavior && "scrollRestoration" in history) {
    history.scrollRestoration = "manual";
  }
  const normalizeParams = applyToParams.bind(null, (paramValue) => "" + paramValue);
  const encodeParams = applyToParams.bind(null, encodeParam);
  const decodeParams = (
    // @ts-expect-error: intentionally avoid the type check
    applyToParams.bind(null, decode)
  );
  function addRoute(parentOrRoute, route) {
    let parent;
    let record;
    if (isRouteName(parentOrRoute)) {
      parent = matcher.getRecordMatcher(parentOrRoute);
      record = route;
    } else {
      record = parentOrRoute;
    }
    return matcher.addRoute(record, parent);
  }
  function removeRoute(name) {
    const recordMatcher = matcher.getRecordMatcher(name);
    if (recordMatcher) {
      matcher.removeRoute(recordMatcher);
    }
  }
  function getRoutes() {
    return matcher.getRoutes().map((routeMatcher) => routeMatcher.record);
  }
  function hasRoute(name) {
    return !!matcher.getRecordMatcher(name);
  }
  function resolve(rawLocation, currentLocation) {
    currentLocation = assign$7({}, currentLocation || currentRoute.value);
    if (typeof rawLocation === "string") {
      const locationNormalized = parseURL(parseQuery$1, rawLocation, currentLocation.path);
      const matchedRoute2 = matcher.resolve({ path: locationNormalized.path }, currentLocation);
      const href2 = routerHistory.createHref(locationNormalized.fullPath);
      return assign$7(locationNormalized, matchedRoute2, {
        params: decodeParams(matchedRoute2.params),
        hash: decode(locationNormalized.hash),
        redirectedFrom: void 0,
        href: href2
      });
    }
    let matcherLocation;
    if (rawLocation.path != null) {
      matcherLocation = assign$7({}, rawLocation, {
        path: parseURL(parseQuery$1, rawLocation.path, currentLocation.path).path
      });
    } else {
      const targetParams = assign$7({}, rawLocation.params);
      for (const key in targetParams) {
        if (targetParams[key] == null) {
          delete targetParams[key];
        }
      }
      matcherLocation = assign$7({}, rawLocation, {
        params: encodeParams(targetParams)
      });
      currentLocation.params = encodeParams(currentLocation.params);
    }
    const matchedRoute = matcher.resolve(matcherLocation, currentLocation);
    const hash = rawLocation.hash || "";
    matchedRoute.params = normalizeParams(decodeParams(matchedRoute.params));
    const fullPath = stringifyURL(stringifyQuery$1, assign$7({}, rawLocation, {
      hash: encodeHash(hash),
      path: matchedRoute.path
    }));
    const href = routerHistory.createHref(fullPath);
    return assign$7({
      fullPath,
      // keep the hash encoded so fullPath is effectively path + encodedQuery +
      // hash
      hash,
      query: (
        // if the user is using a custom query lib like qs, we might have
        // nested objects, so we keep the query as is, meaning it can contain
        // numbers at `$route.query`, but at the point, the user will have to
        // use their own type anyway.
        // https://github.com/vuejs/router/issues/328#issuecomment-649481567
        stringifyQuery$1 === stringifyQuery ? normalizeQuery(rawLocation.query) : rawLocation.query || {}
      )
    }, matchedRoute, {
      redirectedFrom: void 0,
      href
    });
  }
  function locationAsObject(to) {
    return typeof to === "string" ? parseURL(parseQuery$1, to, currentRoute.value.path) : assign$7({}, to);
  }
  function checkCanceledNavigation(to, from) {
    if (pendingLocation !== to) {
      return createRouterError(8, {
        from,
        to
      });
    }
  }
  function push(to) {
    return pushWithRedirect(to);
  }
  function replace(to) {
    return push(assign$7(locationAsObject(to), { replace: true }));
  }
  function handleRedirectRecord(to) {
    const lastMatched = to.matched[to.matched.length - 1];
    if (lastMatched && lastMatched.redirect) {
      const { redirect } = lastMatched;
      let newTargetLocation = typeof redirect === "function" ? redirect(to) : redirect;
      if (typeof newTargetLocation === "string") {
        newTargetLocation = newTargetLocation.includes("?") || newTargetLocation.includes("#") ? newTargetLocation = locationAsObject(newTargetLocation) : (
          // force empty params
          { path: newTargetLocation }
        );
        newTargetLocation.params = {};
      }
      return assign$7({
        query: to.query,
        hash: to.hash,
        // avoid transferring params if the redirect has a path
        params: newTargetLocation.path != null ? {} : to.params
      }, newTargetLocation);
    }
  }
  function pushWithRedirect(to, redirectedFrom) {
    const targetLocation = pendingLocation = resolve(to);
    const from = currentRoute.value;
    const data = to.state;
    const force = to.force;
    const replace2 = to.replace === true;
    const shouldRedirect = handleRedirectRecord(targetLocation);
    if (shouldRedirect)
      return pushWithRedirect(
        assign$7(locationAsObject(shouldRedirect), {
          state: typeof shouldRedirect === "object" ? assign$7({}, data, shouldRedirect.state) : data,
          force,
          replace: replace2
        }),
        // keep original redirectedFrom if it exists
        redirectedFrom || targetLocation
      );
    const toLocation = targetLocation;
    toLocation.redirectedFrom = redirectedFrom;
    let failure;
    if (!force && isSameRouteLocation(stringifyQuery$1, from, targetLocation)) {
      failure = createRouterError(16, { to: toLocation, from });
      handleScroll(
        from,
        from,
        // this is a push, the only way for it to be triggered from a
        // history.listen is with a redirect, which makes it become a push
        true,
        // This cannot be the first navigation because the initial location
        // cannot be manually navigated to
        false
      );
    }
    return (failure ? Promise.resolve(failure) : navigate(toLocation, from)).catch((error) => isNavigationFailure(error) ? (
      // navigation redirects still mark the router as ready
      isNavigationFailure(
        error,
        2
        /* ErrorTypes.NAVIGATION_GUARD_REDIRECT */
      ) ? error : markAsReady(error)
    ) : (
      // reject any unknown error
      triggerError(error, toLocation, from)
    )).then((failure2) => {
      if (failure2) {
        if (isNavigationFailure(
          failure2,
          2
          /* ErrorTypes.NAVIGATION_GUARD_REDIRECT */
        )) {
          return pushWithRedirect(
            // keep options
            assign$7({
              // preserve an existing replacement but allow the redirect to override it
              replace: replace2
            }, locationAsObject(failure2.to), {
              state: typeof failure2.to === "object" ? assign$7({}, data, failure2.to.state) : data,
              force
            }),
            // preserve the original redirectedFrom if any
            redirectedFrom || toLocation
          );
        }
      } else {
        failure2 = finalizeNavigation(toLocation, from, true, replace2, data);
      }
      triggerAfterEach(toLocation, from, failure2);
      return failure2;
    });
  }
  function checkCanceledNavigationAndReject(to, from) {
    const error = checkCanceledNavigation(to, from);
    return error ? Promise.reject(error) : Promise.resolve();
  }
  function runWithContext(fn) {
    const app = installedApps.values().next().value;
    return app && typeof app.runWithContext === "function" ? app.runWithContext(fn) : fn();
  }
  function navigate(to, from) {
    let guards;
    const [leavingRecords, updatingRecords, enteringRecords] = extractChangingRecords(to, from);
    guards = extractComponentsGuards(leavingRecords.reverse(), "beforeRouteLeave", to, from);
    for (const record of leavingRecords) {
      record.leaveGuards.forEach((guard) => {
        guards.push(guardToPromiseFn(guard, to, from));
      });
    }
    const canceledNavigationCheck = checkCanceledNavigationAndReject.bind(null, to, from);
    guards.push(canceledNavigationCheck);
    return runGuardQueue(guards).then(() => {
      guards = [];
      for (const guard of beforeGuards.list()) {
        guards.push(guardToPromiseFn(guard, to, from));
      }
      guards.push(canceledNavigationCheck);
      return runGuardQueue(guards);
    }).then(() => {
      guards = extractComponentsGuards(updatingRecords, "beforeRouteUpdate", to, from);
      for (const record of updatingRecords) {
        record.updateGuards.forEach((guard) => {
          guards.push(guardToPromiseFn(guard, to, from));
        });
      }
      guards.push(canceledNavigationCheck);
      return runGuardQueue(guards);
    }).then(() => {
      guards = [];
      for (const record of enteringRecords) {
        if (record.beforeEnter) {
          if (isArray$i(record.beforeEnter)) {
            for (const beforeEnter of record.beforeEnter)
              guards.push(guardToPromiseFn(beforeEnter, to, from));
          } else {
            guards.push(guardToPromiseFn(record.beforeEnter, to, from));
          }
        }
      }
      guards.push(canceledNavigationCheck);
      return runGuardQueue(guards);
    }).then(() => {
      to.matched.forEach((record) => record.enterCallbacks = {});
      guards = extractComponentsGuards(enteringRecords, "beforeRouteEnter", to, from, runWithContext);
      guards.push(canceledNavigationCheck);
      return runGuardQueue(guards);
    }).then(() => {
      guards = [];
      for (const guard of beforeResolveGuards.list()) {
        guards.push(guardToPromiseFn(guard, to, from));
      }
      guards.push(canceledNavigationCheck);
      return runGuardQueue(guards);
    }).catch((err) => isNavigationFailure(
      err,
      8
      /* ErrorTypes.NAVIGATION_CANCELLED */
    ) ? err : Promise.reject(err));
  }
  function triggerAfterEach(to, from, failure) {
    afterGuards.list().forEach((guard) => runWithContext(() => guard(to, from, failure)));
  }
  function finalizeNavigation(toLocation, from, isPush, replace2, data) {
    const error = checkCanceledNavigation(toLocation, from);
    if (error)
      return error;
    const isFirstNavigation = from === START_LOCATION_NORMALIZED;
    const state = !isBrowser ? {} : history.state;
    if (isPush) {
      if (replace2 || isFirstNavigation)
        routerHistory.replace(toLocation.fullPath, assign$7({
          scroll: isFirstNavigation && state && state.scroll
        }, data));
      else
        routerHistory.push(toLocation.fullPath, data);
    }
    currentRoute.value = toLocation;
    handleScroll(toLocation, from, isPush, isFirstNavigation);
    markAsReady();
  }
  let removeHistoryListener;
  function setupListeners() {
    if (removeHistoryListener)
      return;
    removeHistoryListener = routerHistory.listen((to, _from, info) => {
      if (!router.listening)
        return;
      const toLocation = resolve(to);
      const shouldRedirect = handleRedirectRecord(toLocation);
      if (shouldRedirect) {
        pushWithRedirect(assign$7(shouldRedirect, { replace: true, force: true }), toLocation).catch(noop$3);
        return;
      }
      pendingLocation = toLocation;
      const from = currentRoute.value;
      if (isBrowser) {
        saveScrollPosition(getScrollKey(from.fullPath, info.delta), computeScrollPosition());
      }
      navigate(toLocation, from).catch((error) => {
        if (isNavigationFailure(
          error,
          4 | 8
          /* ErrorTypes.NAVIGATION_CANCELLED */
        )) {
          return error;
        }
        if (isNavigationFailure(
          error,
          2
          /* ErrorTypes.NAVIGATION_GUARD_REDIRECT */
        )) {
          pushWithRedirect(
            assign$7(locationAsObject(error.to), {
              force: true
            }),
            toLocation
            // avoid an uncaught rejection, let push call triggerError
          ).then((failure) => {
            if (isNavigationFailure(
              failure,
              4 | 16
              /* ErrorTypes.NAVIGATION_DUPLICATED */
            ) && !info.delta && info.type === NavigationType.pop) {
              routerHistory.go(-1, false);
            }
          }).catch(noop$3);
          return Promise.reject();
        }
        if (info.delta) {
          routerHistory.go(-info.delta, false);
        }
        return triggerError(error, toLocation, from);
      }).then((failure) => {
        failure = failure || finalizeNavigation(
          // after navigation, all matched components are resolved
          toLocation,
          from,
          false
        );
        if (failure) {
          if (info.delta && // a new navigation has been triggered, so we do not want to revert, that will change the current history
          // entry while a different route is displayed
          !isNavigationFailure(
            failure,
            8
            /* ErrorTypes.NAVIGATION_CANCELLED */
          )) {
            routerHistory.go(-info.delta, false);
          } else if (info.type === NavigationType.pop && isNavigationFailure(
            failure,
            4 | 16
            /* ErrorTypes.NAVIGATION_DUPLICATED */
          )) {
            routerHistory.go(-1, false);
          }
        }
        triggerAfterEach(toLocation, from, failure);
      }).catch(noop$3);
    });
  }
  let readyHandlers = useCallbacks();
  let errorListeners = useCallbacks();
  let ready;
  function triggerError(error, to, from) {
    markAsReady(error);
    const list = errorListeners.list();
    if (list.length) {
      list.forEach((handler) => handler(error, to, from));
    } else {
      console.error(error);
    }
    return Promise.reject(error);
  }
  function isReady() {
    if (ready && currentRoute.value !== START_LOCATION_NORMALIZED)
      return Promise.resolve();
    return new Promise((resolve2, reject) => {
      readyHandlers.add([resolve2, reject]);
    });
  }
  function markAsReady(err) {
    if (!ready) {
      ready = !err;
      setupListeners();
      readyHandlers.list().forEach(([resolve2, reject]) => err ? reject(err) : resolve2());
      readyHandlers.reset();
    }
    return err;
  }
  function handleScroll(to, from, isPush, isFirstNavigation) {
    const { scrollBehavior } = options;
    if (!isBrowser || !scrollBehavior)
      return Promise.resolve();
    const scrollPosition = !isPush && getSavedScrollPosition(getScrollKey(to.fullPath, 0)) || (isFirstNavigation || !isPush) && history.state && history.state.scroll || null;
    return nextTick().then(() => scrollBehavior(to, from, scrollPosition)).then((position) => position && scrollToPosition(position)).catch((err) => triggerError(err, to, from));
  }
  const go = (delta) => routerHistory.go(delta);
  let started;
  const installedApps = /* @__PURE__ */ new Set();
  const router = {
    currentRoute,
    listening: true,
    addRoute,
    removeRoute,
    clearRoutes: matcher.clearRoutes,
    hasRoute,
    getRoutes,
    resolve,
    options,
    push,
    replace,
    go,
    back: () => go(-1),
    forward: () => go(1),
    beforeEach: beforeGuards.add,
    beforeResolve: beforeResolveGuards.add,
    afterEach: afterGuards.add,
    onError: errorListeners.add,
    isReady,
    install(app) {
      const router2 = this;
      app.component("RouterLink", RouterLink);
      app.component("RouterView", RouterView);
      app.config.globalProperties.$router = router2;
      Object.defineProperty(app.config.globalProperties, "$route", {
        enumerable: true,
        get: () => unref(currentRoute)
      });
      if (isBrowser && // used for the initial navigation client side to avoid pushing
      // multiple times when the router is used in multiple apps
      !started && currentRoute.value === START_LOCATION_NORMALIZED) {
        started = true;
        push(routerHistory.location).catch((err) => {
        });
      }
      const reactiveRoute = {};
      for (const key in START_LOCATION_NORMALIZED) {
        Object.defineProperty(reactiveRoute, key, {
          get: () => currentRoute.value[key],
          enumerable: true
        });
      }
      app.provide(routerKey, router2);
      app.provide(routeLocationKey, shallowReactive(reactiveRoute));
      app.provide(routerViewLocationKey, currentRoute);
      const unmountApp = app.unmount;
      installedApps.add(app);
      app.unmount = function() {
        installedApps.delete(app);
        if (installedApps.size < 1) {
          pendingLocation = START_LOCATION_NORMALIZED;
          removeHistoryListener && removeHistoryListener();
          removeHistoryListener = null;
          currentRoute.value = START_LOCATION_NORMALIZED;
          started = false;
          ready = false;
        }
        unmountApp();
      };
    }
  };
  function runGuardQueue(guards) {
    return guards.reduce((promise, guard) => promise.then(() => runWithContext(guard)), Promise.resolve());
  }
  return router;
}
function extractChangingRecords(to, from) {
  const leavingRecords = [];
  const updatingRecords = [];
  const enteringRecords = [];
  const len = Math.max(from.matched.length, to.matched.length);
  for (let i = 0; i < len; i++) {
    const recordFrom = from.matched[i];
    if (recordFrom) {
      if (to.matched.find((record) => isSameRouteRecord(record, recordFrom)))
        updatingRecords.push(recordFrom);
      else
        leavingRecords.push(recordFrom);
    }
    const recordTo = to.matched[i];
    if (recordTo) {
      if (!from.matched.find((record) => isSameRouteRecord(record, recordTo))) {
        enteringRecords.push(recordTo);
      }
    }
  }
  return [leavingRecords, updatingRecords, enteringRecords];
}
function useRouter() {
  return inject(routerKey);
}
function useRoute(_name) {
  return inject(routeLocationKey);
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * vis-data
 * http://visjs.org/
 *
 * Manage unstructured data using DataSet. Add, update, and remove data, and listen for changes in the data.
 *
 * @version 7.1.7
 * @date    2023-09-13T18:13:28.258Z
 *
 * @copyright (c) 2011-2017 Almende B.V, http://almende.com
 * @copyright (c) 2017-2019 visjs contributors, https://github.com/visjs
 *
 * @license
 * vis.js is dual licensed under both
 *
 *   1. The Apache 2.0 License
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *   and
 *
 *   2. The MIT License
 *      http://opensource.org/licenses/MIT
 *
 * vis.js may be distributed under either license.
 */

function _classCallCheck$1(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

var commonjsGlobal$2 = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs$2 (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var defineProperty$f$1 = {exports: {}};

var check$1 = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global$m =
  // eslint-disable-next-line es/no-global-this -- safe
  check$1(typeof globalThis == 'object' && globalThis) ||
  check$1(typeof window == 'object' && window) ||
  // eslint-disable-next-line no-restricted-globals -- safe
  check$1(typeof self == 'object' && self) ||
  check$1(typeof commonjsGlobal$2 == 'object' && commonjsGlobal$2) ||
  // eslint-disable-next-line no-new-func -- fallback
  (function () { return this; })() || Function('return this')();

var fails$t$1 = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};

var fails$s$1 = fails$t$1;

var functionBindNative$1 = !fails$s$1(function () {
  // eslint-disable-next-line es/no-function-prototype-bind -- safe
  var test = (function () { /* empty */ }).bind();
  // eslint-disable-next-line no-prototype-builtins -- safe
  return typeof test != 'function' || test.hasOwnProperty('prototype');
});

var NATIVE_BIND$4$1 = functionBindNative$1;

var FunctionPrototype$3$1 = Function.prototype;
var apply$6 = FunctionPrototype$3$1.apply;
var call$k = FunctionPrototype$3$1.call;

// eslint-disable-next-line es/no-reflect -- safe
var functionApply$1 = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND$4$1 ? call$k.bind(apply$6) : function () {
  return call$k.apply(apply$6, arguments);
});

var NATIVE_BIND$3$1 = functionBindNative$1;

var FunctionPrototype$2$1 = Function.prototype;
var call$j = FunctionPrototype$2$1.call;
var uncurryThisWithBind$1 = NATIVE_BIND$3$1 && FunctionPrototype$2$1.bind.bind(call$j, call$j);

var functionUncurryThis$1 = NATIVE_BIND$3$1 ? uncurryThisWithBind$1 : function (fn) {
  return function () {
    return call$j.apply(fn, arguments);
  };
};

var uncurryThis$q$1 = functionUncurryThis$1;

var toString$9$1 = uncurryThis$q$1({}.toString);
var stringSlice$1$1 = uncurryThis$q$1(''.slice);

var classofRaw$2$1 = function (it) {
  return stringSlice$1$1(toString$9$1(it), 8, -1);
};

var classofRaw$1$1 = classofRaw$2$1;
var uncurryThis$p$1 = functionUncurryThis$1;

var functionUncurryThisClause$1 = function (fn) {
  // Nashorn bug:
  //   https://github.com/zloirock/core-js/issues/1128
  //   https://github.com/zloirock/core-js/issues/1130
  if (classofRaw$1$1(fn) === 'Function') return uncurryThis$p$1(fn);
};

var documentAll$2$1 = typeof document == 'object' && document.all;

// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
// eslint-disable-next-line unicorn/no-typeof-undefined -- required for testing
var IS_HTMLDDA$1 = typeof documentAll$2$1 == 'undefined' && documentAll$2$1 !== undefined;

var documentAll_1$1 = {
  all: documentAll$2$1,
  IS_HTMLDDA: IS_HTMLDDA$1
};

var $documentAll$1$1 = documentAll_1$1;

var documentAll$1$1 = $documentAll$1$1.all;

// `IsCallable` abstract operation
// https://tc39.es/ecma262/#sec-iscallable
var isCallable$m = $documentAll$1$1.IS_HTMLDDA ? function (argument) {
  return typeof argument == 'function' || argument === documentAll$1$1;
} : function (argument) {
  return typeof argument == 'function';
};

var objectGetOwnPropertyDescriptor$1 = {};

var fails$r$1 = fails$t$1;

// Detect IE8's incomplete defineProperty implementation
var descriptors$1 = !fails$r$1(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
});

var NATIVE_BIND$2$1 = functionBindNative$1;

var call$i = Function.prototype.call;

var functionCall$1 = NATIVE_BIND$2$1 ? call$i.bind(call$i) : function () {
  return call$i.apply(call$i, arguments);
};

var objectPropertyIsEnumerable$1 = {};

var $propertyIsEnumerable$1$1 = {}.propertyIsEnumerable;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor$7$1 = Object.getOwnPropertyDescriptor;

// Nashorn ~ JDK8 bug
var NASHORN_BUG$1 = getOwnPropertyDescriptor$7$1 && !$propertyIsEnumerable$1$1.call({ 1: 2 }, 1);

// `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
objectPropertyIsEnumerable$1.f = NASHORN_BUG$1 ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor$7$1(this, V);
  return !!descriptor && descriptor.enumerable;
} : $propertyIsEnumerable$1$1;

var createPropertyDescriptor$7 = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

var uncurryThis$o$1 = functionUncurryThis$1;
var fails$q$1 = fails$t$1;
var classof$f = classofRaw$2$1;

var $Object$4$1 = Object;
var split$1 = uncurryThis$o$1(''.split);

// fallback for non-array-like ES3 and non-enumerable old V8 strings
var indexedObject$1 = fails$q$1(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins -- safe
  return !$Object$4$1('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classof$f(it) == 'String' ? split$1(it, '') : $Object$4$1(it);
} : $Object$4$1;

// we can't use just `it == null` since of `document.all` special case
// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot-aec
var isNullOrUndefined$5$1 = function (it) {
  return it === null || it === undefined;
};

var isNullOrUndefined$4$1 = isNullOrUndefined$5$1;

var $TypeError$g$1 = TypeError;

// `RequireObjectCoercible` abstract operation
// https://tc39.es/ecma262/#sec-requireobjectcoercible
var requireObjectCoercible$3$1 = function (it) {
  if (isNullOrUndefined$4$1(it)) throw $TypeError$g$1("Can't call method on " + it);
  return it;
};

// toObject with fallback for non-array-like ES3 strings
var IndexedObject$3$1 = indexedObject$1;
var requireObjectCoercible$2$1 = requireObjectCoercible$3$1;

var toIndexedObject$a$1 = function (it) {
  return IndexedObject$3$1(requireObjectCoercible$2$1(it));
};

var isCallable$l = isCallable$m;
var $documentAll$2 = documentAll_1$1;

var documentAll$3 = $documentAll$2.all;

var isObject$h$1 = $documentAll$2.IS_HTMLDDA ? function (it) {
  return typeof it == 'object' ? it !== null : isCallable$l(it) || it === documentAll$3;
} : function (it) {
  return typeof it == 'object' ? it !== null : isCallable$l(it);
};

var path$o$1 = {};

var path$n$1 = path$o$1;
var global$l$1 = global$m;
var isCallable$k = isCallable$m;

var aFunction$1 = function (variable) {
  return isCallable$k(variable) ? variable : undefined;
};

var getBuiltIn$f = function (namespace, method) {
  return arguments.length < 2 ? aFunction$1(path$n$1[namespace]) || aFunction$1(global$l$1[namespace])
    : path$n$1[namespace] && path$n$1[namespace][method] || global$l$1[namespace] && global$l$1[namespace][method];
};

var uncurryThis$n$1 = functionUncurryThis$1;

var objectIsPrototypeOf$1 = uncurryThis$n$1({}.isPrototypeOf);

var engineUserAgent$1 = typeof navigator != 'undefined' && String(navigator.userAgent) || '';

var global$k$1 = global$m;
var userAgent$5 = engineUserAgent$1;

var process$4 = global$k$1.process;
var Deno$1$1 = global$k$1.Deno;
var versions$1 = process$4 && process$4.versions || Deno$1$1 && Deno$1$1.version;
var v8$1 = versions$1 && versions$1.v8;
var match$1, version$1;

if (v8$1) {
  match$1 = v8$1.split('.');
  // in old Chrome, versions of V8 isn't V8 = Chrome / 10
  // but their correct versions are not interesting for us
  version$1 = match$1[0] > 0 && match$1[0] < 4 ? 1 : +(match$1[0] + match$1[1]);
}

// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
// so check `userAgent` even if `.v8` exists, but 0
if (!version$1 && userAgent$5) {
  match$1 = userAgent$5.match(/Edge\/(\d+)/);
  if (!match$1 || match$1[1] >= 74) {
    match$1 = userAgent$5.match(/Chrome\/(\d+)/);
    if (match$1) version$1 = +match$1[1];
  }
}

var engineV8Version$1 = version$1;

/* eslint-disable es/no-symbol -- required for testing */

var V8_VERSION$3 = engineV8Version$1;
var fails$p$1 = fails$t$1;

// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
var symbolConstructorDetection$1 = !!Object.getOwnPropertySymbols && !fails$p$1(function () {
  var symbol = Symbol();
  // Chrome 38 Symbol has incorrect toString conversion
  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
    !Symbol.sham && V8_VERSION$3 && V8_VERSION$3 < 41;
});

/* eslint-disable es/no-symbol -- required for testing */

var NATIVE_SYMBOL$5$1 = symbolConstructorDetection$1;

var useSymbolAsUid$1 = NATIVE_SYMBOL$5$1
  && !Symbol.sham
  && typeof Symbol.iterator == 'symbol';

var getBuiltIn$e = getBuiltIn$f;
var isCallable$j = isCallable$m;
var isPrototypeOf$j$1 = objectIsPrototypeOf$1;
var USE_SYMBOL_AS_UID$1$1 = useSymbolAsUid$1;

var $Object$3$1 = Object;

var isSymbol$5$1 = USE_SYMBOL_AS_UID$1$1 ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  var $Symbol = getBuiltIn$e('Symbol');
  return isCallable$j($Symbol) && isPrototypeOf$j$1($Symbol.prototype, $Object$3$1(it));
};

var $String$4$1 = String;

var tryToString$6$1 = function (argument) {
  try {
    return $String$4$1(argument);
  } catch (error) {
    return 'Object';
  }
};

var isCallable$i$1 = isCallable$m;
var tryToString$5$1 = tryToString$6$1;

var $TypeError$f$1 = TypeError;

// `Assert: IsCallable(argument) is true`
var aCallable$e = function (argument) {
  if (isCallable$i$1(argument)) return argument;
  throw $TypeError$f$1(tryToString$5$1(argument) + ' is not a function');
};

var aCallable$d = aCallable$e;
var isNullOrUndefined$3$1 = isNullOrUndefined$5$1;

// `GetMethod` abstract operation
// https://tc39.es/ecma262/#sec-getmethod
var getMethod$3$1 = function (V, P) {
  var func = V[P];
  return isNullOrUndefined$3$1(func) ? undefined : aCallable$d(func);
};

var call$h = functionCall$1;
var isCallable$h$1 = isCallable$m;
var isObject$g$1 = isObject$h$1;

var $TypeError$e$1 = TypeError;

// `OrdinaryToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-ordinarytoprimitive
var ordinaryToPrimitive$1$1 = function (input, pref) {
  var fn, val;
  if (pref === 'string' && isCallable$h$1(fn = input.toString) && !isObject$g$1(val = call$h(fn, input))) return val;
  if (isCallable$h$1(fn = input.valueOf) && !isObject$g$1(val = call$h(fn, input))) return val;
  if (pref !== 'string' && isCallable$h$1(fn = input.toString) && !isObject$g$1(val = call$h(fn, input))) return val;
  throw $TypeError$e$1("Can't convert object to primitive value");
};

var shared$7$1 = {exports: {}};

var isPure = true;

var global$j$1 = global$m;

// eslint-disable-next-line es/no-object-defineproperty -- safe
var defineProperty$e$1 = Object.defineProperty;

var global$i$1 = global$m;
var defineGlobalProperty$2 = defineGlobalProperty$1$1;

var SHARED$1 = '__core-js_shared__';
var store$3$1 = global$i$1[SHARED$1] || defineGlobalProperty$2(SHARED$1, {});

var sharedStore$1 = store$3$1;

var store$2$1 = sharedStore$1;

(shared$7$1.exports = function (key, value) {
  return store$2$1[key] || (store$2$1[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: '3.29.0',
  mode: 'pure' ,
  copyright: '© 2014-2023 Denis Pushkarev (zloirock.ru)',
  license: 'https://github.com/zloirock/core-js/blob/v3.29.0/LICENSE',
  source: 'https://github.com/zloirock/core-js'
});

var sharedExports$1 = shared$7$1.exports;

var requireObjectCoercible$1$1 = requireObjectCoercible$3$1;

var $Object$2$1 = Object;

// `ToObject` abstract operation
// https://tc39.es/ecma262/#sec-toobject
var toObject$d$1 = function (argument) {
  return $Object$2$1(requireObjectCoercible$1$1(argument));
};

var uncurryThis$m$1 = functionUncurryThis$1;
var toObject$c$1 = toObject$d$1;

var hasOwnProperty$1 = uncurryThis$m$1({}.hasOwnProperty);

// `HasOwnProperty` abstract operation
// https://tc39.es/ecma262/#sec-hasownproperty
// eslint-disable-next-line es/no-object-hasown -- safe
var hasOwnProperty_1$1 = Object.hasOwn || function hasOwn(it, key) {
  return hasOwnProperty$1(toObject$c$1(it), key);
};

var uncurryThis$l$1 = functionUncurryThis$1;

var id$1$1 = 0;
var postfix$1 = Math.random();
var toString$8$1 = uncurryThis$l$1(1.0.toString);

var uid$4$1 = function (key) {
  return 'Symbol(' + (key === undefined ? '' : key) + ')_' + toString$8$1(++id$1$1 + postfix$1, 36);
};

var global$h$1 = global$m;
var shared$6$1 = sharedExports$1;
var hasOwn$j = hasOwnProperty_1$1;
var uid$3$1 = uid$4$1;
var NATIVE_SYMBOL$4$1 = symbolConstructorDetection$1;
var USE_SYMBOL_AS_UID$2 = useSymbolAsUid$1;

var Symbol$3$1 = global$h$1.Symbol;
var WellKnownSymbolsStore$2$1 = shared$6$1('wks');
var createWellKnownSymbol$1 = USE_SYMBOL_AS_UID$2 ? Symbol$3$1['for'] || Symbol$3$1 : Symbol$3$1 && Symbol$3$1.withoutSetter || uid$3$1;

var wellKnownSymbol$m = function (name) {
  if (!hasOwn$j(WellKnownSymbolsStore$2$1, name)) {
    WellKnownSymbolsStore$2$1[name] = NATIVE_SYMBOL$4$1 && hasOwn$j(Symbol$3$1, name)
      ? Symbol$3$1[name]
      : createWellKnownSymbol$1('Symbol.' + name);
  } return WellKnownSymbolsStore$2$1[name];
};

var call$g = functionCall$1;
var isObject$f$1 = isObject$h$1;
var isSymbol$4$1 = isSymbol$5$1;
var getMethod$2$1 = getMethod$3$1;
var ordinaryToPrimitive$2 = ordinaryToPrimitive$1$1;
var wellKnownSymbol$l$1 = wellKnownSymbol$m;

var $TypeError$d$1 = TypeError;
var TO_PRIMITIVE$1 = wellKnownSymbol$l$1('toPrimitive');

// `ToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-toprimitive
var toPrimitive$7$1 = function (input, pref) {
  if (!isObject$f$1(input) || isSymbol$4$1(input)) return input;
  var exoticToPrim = getMethod$2$1(input, TO_PRIMITIVE$1);
  var result;
  if (exoticToPrim) {
    if (pref === undefined) pref = 'default';
    result = call$g(exoticToPrim, input, pref);
    if (!isObject$f$1(result) || isSymbol$4$1(result)) return result;
    throw $TypeError$d$1("Can't convert object to primitive value");
  }
  if (pref === undefined) pref = 'number';
  return ordinaryToPrimitive$2(input, pref);
};

var toPrimitive$6$1 = toPrimitive$7$1;
var isSymbol$3$1 = isSymbol$5$1;

// `ToPropertyKey` abstract operation
// https://tc39.es/ecma262/#sec-topropertykey
var toPropertyKey$4$1 = function (argument) {
  var key = toPrimitive$6$1(argument, 'string');
  return isSymbol$3$1(key) ? key : key + '';
};

var global$g$1 = global$m;
var isObject$e$1 = isObject$h$1;

var document$3 = global$g$1.document;
// typeof document.createElement is 'object' in old IE
var EXISTS$1$1 = isObject$e$1(document$3) && isObject$e$1(document$3.createElement);

var documentCreateElement$1$1 = function (it) {
  return EXISTS$1$1 ? document$3.createElement(it) : {};
};

var DESCRIPTORS$h$1 = descriptors$1;
var fails$o$1 = fails$t$1;
var createElement$1 = documentCreateElement$1$1;

// Thanks to IE8 for its funny defineProperty
var ie8DomDefine$1 = !DESCRIPTORS$h$1 && !fails$o$1(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(createElement$1('div'), 'a', {
    get: function () { return 7; }
  }).a != 7;
});

var DESCRIPTORS$g$1 = descriptors$1;
var call$f$1 = functionCall$1;
var propertyIsEnumerableModule$2$1 = objectPropertyIsEnumerable$1;
var createPropertyDescriptor$6 = createPropertyDescriptor$7;
var toIndexedObject$9$1 = toIndexedObject$a$1;
var toPropertyKey$3$1 = toPropertyKey$4$1;
var hasOwn$i$1 = hasOwnProperty_1$1;
var IE8_DOM_DEFINE$1$1 = ie8DomDefine$1;

// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor$2$1 = Object.getOwnPropertyDescriptor;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
objectGetOwnPropertyDescriptor$1.f = DESCRIPTORS$g$1 ? $getOwnPropertyDescriptor$2$1 : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject$9$1(O);
  P = toPropertyKey$3$1(P);
  if (IE8_DOM_DEFINE$1$1) try {
    return $getOwnPropertyDescriptor$2$1(O, P);
  } catch (error) { /* empty */ }
  if (hasOwn$i$1(O, P)) return createPropertyDescriptor$6(!call$f$1(propertyIsEnumerableModule$2$1.f, O, P), O[P]);
};

var fails$n$1 = fails$t$1;
var isCallable$g$1 = isCallable$m;

var replacement$1 = /#|\.prototype\./;

var isForced$2 = function (feature, detection) {
  var value = data$1[normalize$3(feature)];
  return value == POLYFILL$1 ? true
    : value == NATIVE$1 ? false
    : isCallable$g$1(detection) ? fails$n$1(detection)
    : !!detection;
};

var normalize$3 = isForced$2.normalize = function (string) {
  return String(string).replace(replacement$1, '.').toLowerCase();
};

var data$1 = isForced$2.data = {};
var NATIVE$1 = isForced$2.NATIVE = 'N';
var POLYFILL$1 = isForced$2.POLYFILL = 'P';

var isForced_1$1 = isForced$2;

var uncurryThis$k$1 = functionUncurryThisClause$1;
var aCallable$c = aCallable$e;
var NATIVE_BIND$1$1 = functionBindNative$1;

var bind$j = uncurryThis$k$1(uncurryThis$k$1.bind);

// optional / simple context binding
var functionBindContext$1 = function (fn, that) {
  aCallable$c(fn);
  return that === undefined ? fn : NATIVE_BIND$1$1 ? bind$j(fn, that) : function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};

var objectDefineProperty$1 = {};

var DESCRIPTORS$f$1 = descriptors$1;
var fails$m$1 = fails$t$1;

// V8 ~ Chrome 36-
// https://bugs.chromium.org/p/v8/issues/detail?id=3334
var v8PrototypeDefineBug$1 = DESCRIPTORS$f$1 && fails$m$1(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(function () { /* empty */ }, 'prototype', {
    value: 42,
    writable: false
  }).prototype != 42;
});

var isObject$d$1 = isObject$h$1;

var $String$3$1 = String;
var $TypeError$c$1 = TypeError;

// `Assert: Type(argument) is Object`
var anObject$d$1 = function (argument) {
  if (isObject$d$1(argument)) return argument;
  throw $TypeError$c$1($String$3$1(argument) + ' is not an object');
};

var DESCRIPTORS$e$1 = descriptors$1;
var IE8_DOM_DEFINE$2 = ie8DomDefine$1;
var V8_PROTOTYPE_DEFINE_BUG$1$1 = v8PrototypeDefineBug$1;
var anObject$c$1 = anObject$d$1;
var toPropertyKey$2$1 = toPropertyKey$4$1;

var $TypeError$b$1 = TypeError;
// eslint-disable-next-line es/no-object-defineproperty -- safe
var $defineProperty$1$1 = Object.defineProperty;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor$1$1 = Object.getOwnPropertyDescriptor;
var ENUMERABLE$1 = 'enumerable';
var CONFIGURABLE$1$1 = 'configurable';
var WRITABLE$1 = 'writable';

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
objectDefineProperty$1.f = DESCRIPTORS$e$1 ? V8_PROTOTYPE_DEFINE_BUG$1$1 ? function defineProperty(O, P, Attributes) {
  anObject$c$1(O);
  P = toPropertyKey$2$1(P);
  anObject$c$1(Attributes);
  if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE$1 in Attributes && !Attributes[WRITABLE$1]) {
    var current = $getOwnPropertyDescriptor$1$1(O, P);
    if (current && current[WRITABLE$1]) {
      O[P] = Attributes.value;
      Attributes = {
        configurable: CONFIGURABLE$1$1 in Attributes ? Attributes[CONFIGURABLE$1$1] : current[CONFIGURABLE$1$1],
        enumerable: ENUMERABLE$1 in Attributes ? Attributes[ENUMERABLE$1] : current[ENUMERABLE$1],
        writable: false
      };
    }
  } return $defineProperty$1$1(O, P, Attributes);
} : $defineProperty$1$1 : function defineProperty(O, P, Attributes) {
  anObject$c$1(O);
  P = toPropertyKey$2$1(P);
  anObject$c$1(Attributes);
  if (IE8_DOM_DEFINE$2) try {
    return $defineProperty$1$1(O, P, Attributes);
  } catch (error) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw $TypeError$b$1('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

var DESCRIPTORS$d$1 = descriptors$1;
var definePropertyModule$4 = objectDefineProperty$1;
var createPropertyDescriptor$5$1 = createPropertyDescriptor$7;

var createNonEnumerableProperty$9 = DESCRIPTORS$d$1 ? function (object, key, value) {
  return definePropertyModule$4.f(object, key, createPropertyDescriptor$5$1(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

var global$f$1 = global$m;
var apply$5$1 = functionApply$1;
var uncurryThis$j$1 = functionUncurryThisClause$1;
var isCallable$f$1 = isCallable$m;
var getOwnPropertyDescriptor$6$1 = objectGetOwnPropertyDescriptor$1.f;
var isForced$1$1 = isForced_1$1;
var path$m$1 = path$o$1;
var bind$i = functionBindContext$1;
var createNonEnumerableProperty$8 = createNonEnumerableProperty$9;
var hasOwn$h$1 = hasOwnProperty_1$1;

/*
  options.target         - name of the target object
  options.global         - target is the global object
  options.stat           - export as static methods of target
  options.proto          - export as prototype methods of target
  options.real           - real prototype method for the `pure` version
  options.forced         - export even if the native feature is available
  options.bind           - bind methods to the target, required for the `pure` version
  options.wrap           - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe         - use the simple assignment of property instead of delete + defineProperty
  options.sham           - add a flag to not completely full polyfills
  options.enumerable     - export as enumerable property
  options.dontCallGetSet - prevent calling a getter on target
  options.name           - the .name of the function if it does not match the key
*/
var _export$1 = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var PROTO = options.proto;

var nativeSource = GLOBAL ? global$f$1 : STATIC ? global$f$1[TARGET] : (global$f$1[TARGET] || {}).prototype;

var target = GLOBAL ? path$m$1 : path$m$1[TARGET] || createNonEnumerableProperty$8(path$m$1, TARGET, {})[TARGET];
  var targetPrototype = target.prototype;

var FORCED, USE_NATIVE, VIRTUAL_PROTOTYPE;
  var key, sourceProperty, targetProperty, nativeProperty, resultProperty, descriptor;

for (key in source) {
    FORCED = isForced$1$1(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
    // contains in native
    USE_NATIVE = !FORCED && nativeSource && hasOwn$h$1(nativeSource, key);

targetProperty = target[key];

if (USE_NATIVE) if (options.dontCallGetSet) {
      descriptor = getOwnPropertyDescriptor$6$1(nativeSource, key);
      nativeProperty = descriptor && descriptor.value;
    } else nativeProperty = nativeSource[key];

// export native or implementation
    sourceProperty = (USE_NATIVE && nativeProperty) ? nativeProperty : source[key];

if (USE_NATIVE && typeof targetProperty == typeof sourceProperty) continue;

// bind methods to global for calling from export context
    if (options.bind && USE_NATIVE) resultProperty = bind$i(sourceProperty, global$f$1);
    // wrap global constructors for prevent changes in this version
    else if (options.wrap && USE_NATIVE) resultProperty = wrapConstructor$1(sourceProperty);
    // make static versions for prototype methods
    else if (PROTO && isCallable$f$1(sourceProperty)) resultProperty = uncurryThis$j$1(sourceProperty);
    // default case
    else resultProperty = sourceProperty;

// add a flag to not completely full polyfills
    if (options.sham || (sourceProperty && sourceProperty.sham) || (targetProperty && targetProperty.sham)) {
      createNonEnumerableProperty$8(resultProperty, 'sham', true);
    }

createNonEnumerableProperty$8(target, key, resultProperty);

if (PROTO) {
      VIRTUAL_PROTOTYPE = TARGET + 'Prototype';
      if (!hasOwn$h$1(path$m$1, VIRTUAL_PROTOTYPE)) {
        createNonEnumerableProperty$8(path$m$1, VIRTUAL_PROTOTYPE, {});
      }
      // export virtual prototype methods
      createNonEnumerableProperty$8(path$m$1[VIRTUAL_PROTOTYPE], key, sourceProperty);
      // export real prototype methods
      if (options.real && targetPrototype && (FORCED || !targetPrototype[key])) {
        createNonEnumerableProperty$8(targetPrototype, key, sourceProperty);
      }
    }
  }
};

var $$L$1 = _export$1;
var DESCRIPTORS$c$1 = descriptors$1;
var defineProperty$d$1 = objectDefineProperty$1.f;

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
// eslint-disable-next-line es/no-object-defineproperty -- safe
$$L$1({ target: 'Object', stat: true, forced: Object.defineProperty !== defineProperty$d$1, sham: !DESCRIPTORS$c$1 }, {
  defineProperty: defineProperty$d$1
});

var path$l$1 = path$o$1;

var Object$4$1 = path$l$1.Object;

var defineProperty$c$1 = defineProperty$f$1.exports = function defineProperty(it, key, desc) {
  return Object$4$1.defineProperty(it, key, desc);
};

if (Object$4$1.defineProperty.sham) defineProperty$c$1.sham = true;

var definePropertyExports$4 = defineProperty$f$1.exports;

var parent$15$1 = definePropertyExports$4;

var defineProperty$b$1 = parent$15$1;

var parent$14$1 = defineProperty$b$1;

var defineProperty$a$1 = parent$14$1;

var parent$13$1 = defineProperty$a$1;

var defineProperty$9$1 = parent$13$1;

var defineProperty$8$1 = defineProperty$9$1;

var defineProperty$7$1 = defineProperty$8$1;

var _Object$defineProperty$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(defineProperty$7$1);

var classof$e$1 = classofRaw$2$1;

// `IsArray` abstract operation
// https://tc39.es/ecma262/#sec-isarray
// eslint-disable-next-line es/no-array-isarray -- safe
var isArray$f$1 = Array.isArray || function isArray(argument) {
  return classof$e$1(argument) == 'Array';
};

var ceil$1 = Math.ceil;
var floor$1$1 = Math.floor;

// `Math.trunc` method
// https://tc39.es/ecma262/#sec-math.trunc
// eslint-disable-next-line es/no-math-trunc -- safe
var mathTrunc$1 = Math.trunc || function trunc(x) {
  var n = +x;
  return (n > 0 ? floor$1$1 : ceil$1)(n);
};

var trunc$1 = mathTrunc$1;

// `ToIntegerOrInfinity` abstract operation
// https://tc39.es/ecma262/#sec-tointegerorinfinity
var toIntegerOrInfinity$4$1 = function (argument) {
  var number = +argument;
  // eslint-disable-next-line no-self-compare -- NaN check
  return number !== number || number === 0 ? 0 : trunc$1(number);
};

var toIntegerOrInfinity$3$1 = toIntegerOrInfinity$4$1;

var min$2$1 = Math.min;

// `ToLength` abstract operation
// https://tc39.es/ecma262/#sec-tolength
var toLength$1$1 = function (argument) {
  return argument > 0 ? min$2$1(toIntegerOrInfinity$3$1(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};

var toLength$2 = toLength$1$1;

// `LengthOfArrayLike` abstract operation
// https://tc39.es/ecma262/#sec-lengthofarraylike
var lengthOfArrayLike$c = function (obj) {
  return toLength$2(obj.length);
};

var $TypeError$a$1 = TypeError;
var MAX_SAFE_INTEGER$1 = 0x1FFFFFFFFFFFFF; // 2 ** 53 - 1 == 9007199254740991

var doesNotExceedSafeInteger$3 = function (it) {
  if (it > MAX_SAFE_INTEGER$1) throw $TypeError$a$1('Maximum allowed index exceeded');
  return it;
};

var toPropertyKey$1$1 = toPropertyKey$4$1;
var definePropertyModule$3$1 = objectDefineProperty$1;
var createPropertyDescriptor$4$1 = createPropertyDescriptor$7;

var createProperty$6$1 = function (object, key, value) {
  var propertyKey = toPropertyKey$1$1(key);
  if (propertyKey in object) definePropertyModule$3$1.f(object, propertyKey, createPropertyDescriptor$4$1(0, value));
  else object[propertyKey] = value;
};

var wellKnownSymbol$k$1 = wellKnownSymbol$m;

var TO_STRING_TAG$4 = wellKnownSymbol$k$1('toStringTag');
var test$2$1 = {};

test$2$1[TO_STRING_TAG$4] = 'z';

var toStringTagSupport$1 = String(test$2$1) === '[object z]';

var TO_STRING_TAG_SUPPORT$2$1 = toStringTagSupport$1;
var isCallable$e$1 = isCallable$m;
var classofRaw$3 = classofRaw$2$1;
var wellKnownSymbol$j$1 = wellKnownSymbol$m;

var TO_STRING_TAG$3$1 = wellKnownSymbol$j$1('toStringTag');
var $Object$1$1 = Object;

// ES3 wrong here
var CORRECT_ARGUMENTS$1 = classofRaw$3(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet$1 = function (it, key) {
  try {
    return it[key];
  } catch (error) { /* empty */ }
};

// getting tag from ES6+ `Object.prototype.toString`
var classof$d$1 = TO_STRING_TAG_SUPPORT$2$1 ? classofRaw$3 : function (it) {
  var O, tag, result;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (tag = tryGet$1(O = $Object$1$1(it), TO_STRING_TAG$3$1)) == 'string' ? tag
    // builtinTag case
    : CORRECT_ARGUMENTS$1 ? classofRaw$3(O)
    // ES3 arguments fallback
    : (result = classofRaw$3(O)) == 'Object' && isCallable$e$1(O.callee) ? 'Arguments' : result;
};

var uncurryThis$i$1 = functionUncurryThis$1;
var isCallable$d$1 = isCallable$m;
var store$1$1 = sharedStore$1;

var functionToString$1 = uncurryThis$i$1(Function.toString);

// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
if (!isCallable$d$1(store$1$1.inspectSource)) {
  store$1$1.inspectSource = function (it) {
    return functionToString$1(it);
  };
}

var inspectSource$2 = store$1$1.inspectSource;

var uncurryThis$h$1 = functionUncurryThis$1;
var fails$l$1 = fails$t$1;
var isCallable$c$1 = isCallable$m;
var classof$c$1 = classof$d$1;
var getBuiltIn$d = getBuiltIn$f;
var inspectSource$1$1 = inspectSource$2;

var noop$2 = function () { /* empty */ };
var empty$1 = [];
var construct$4$1 = getBuiltIn$d('Reflect', 'construct');
var constructorRegExp$1 = /^\s*(?:class|function)\b/;
var exec$1$1 = uncurryThis$h$1(constructorRegExp$1.exec);
var INCORRECT_TO_STRING$1 = !constructorRegExp$1.exec(noop$2);

isConstructorLegacy$1.sham = true;

// `IsConstructor` abstract operation
// https://tc39.es/ecma262/#sec-isconstructor
var isConstructor$4$1 = !construct$4$1 || fails$l$1(function () {
  var called;
  return isConstructorModern$1(isConstructorModern$1.call)
    || !isConstructorModern$1(Object)
    || !isConstructorModern$1(function () { called = true; })
    || called;
}) ? isConstructorLegacy$1 : isConstructorModern$1;

var isArray$e$1 = isArray$f$1;
var isConstructor$3$1 = isConstructor$4$1;
var isObject$c$1 = isObject$h$1;
var wellKnownSymbol$i$1 = wellKnownSymbol$m;

var SPECIES$5 = wellKnownSymbol$i$1('species');
var $Array$3$1 = Array;

// a part of `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
var arraySpeciesConstructor$1$1 = function (originalArray) {
  var C;
  if (isArray$e$1(originalArray)) {
    C = originalArray.constructor;
    // cross-realm fallback
    if (isConstructor$3$1(C) && (C === $Array$3$1 || isArray$e$1(C.prototype))) C = undefined;
    else if (isObject$c$1(C)) {
      C = C[SPECIES$5];
      if (C === null) C = undefined;
    }
  } return C === undefined ? $Array$3$1 : C;
};

var arraySpeciesConstructor$2 = arraySpeciesConstructor$1$1;

// `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
var arraySpeciesCreate$4 = function (originalArray, length) {
  return new (arraySpeciesConstructor$2(originalArray))(length === 0 ? 0 : length);
};

var fails$k$1 = fails$t$1;
var wellKnownSymbol$h$1 = wellKnownSymbol$m;
var V8_VERSION$2$1 = engineV8Version$1;

var SPECIES$4 = wellKnownSymbol$h$1('species');

var $$K$1 = _export$1;
var fails$j$1 = fails$t$1;
var isArray$d$1 = isArray$f$1;
var isObject$b$1 = isObject$h$1;
var toObject$b$1 = toObject$d$1;
var lengthOfArrayLike$b$1 = lengthOfArrayLike$c;
var doesNotExceedSafeInteger$2$1 = doesNotExceedSafeInteger$3;
var createProperty$5$1 = createProperty$6$1;
var arraySpeciesCreate$3$1 = arraySpeciesCreate$4;
var arrayMethodHasSpeciesSupport$4$1 = arrayMethodHasSpeciesSupport$5$1;
var wellKnownSymbol$g$1 = wellKnownSymbol$m;
var V8_VERSION$1$1 = engineV8Version$1;

var IS_CONCAT_SPREADABLE$1 = wellKnownSymbol$g$1('isConcatSpreadable');

// We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679
var IS_CONCAT_SPREADABLE_SUPPORT$1 = V8_VERSION$1$1 >= 51 || !fails$j$1(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE$1] = false;
  return array.concat()[0] !== array;
});

var isConcatSpreadable$1 = function (O) {
  if (!isObject$b$1(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE$1];
  return spreadable !== undefined ? !!spreadable : isArray$d$1(O);
};

var FORCED$5$1 = !IS_CONCAT_SPREADABLE_SUPPORT$1 || !arrayMethodHasSpeciesSupport$4$1('concat');

// `Array.prototype.concat` method
// https://tc39.es/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species
$$K$1({ target: 'Array', proto: true, arity: 1, forced: FORCED$5$1 }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  concat: function concat(arg) {
    var O = toObject$b$1(this);
    var A = arraySpeciesCreate$3$1(O, 0);
    var n = 0;
    var i, k, length, len, E;
    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];
      if (isConcatSpreadable$1(E)) {
        len = lengthOfArrayLike$b$1(E);
        doesNotExceedSafeInteger$2$1(n + len);
        for (k = 0; k < len; k++, n++) if (k in E) createProperty$5$1(A, n, E[k]);
      } else {
        doesNotExceedSafeInteger$2$1(n + 1);
        createProperty$5$1(A, n++, E);
      }
    }
    A.length = n;
    return A;
  }
});

var classof$b$1 = classof$d$1;

var $String$2$1 = String;

var toString$7$1 = function (argument) {
  if (classof$b$1(argument) === 'Symbol') throw TypeError('Cannot convert a Symbol value to a string');
  return $String$2$1(argument);
};

var objectDefineProperties$1 = {};

var toIntegerOrInfinity$2$1 = toIntegerOrInfinity$4$1;

var max$3$1 = Math.max;
var min$1$2 = Math.min;

// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
var toAbsoluteIndex$4$1 = function (index, length) {
  var integer = toIntegerOrInfinity$2$1(index);
  return integer < 0 ? max$3$1(integer + length, 0) : min$1$2(integer, length);
};

var toIndexedObject$8$1 = toIndexedObject$a$1;
var toAbsoluteIndex$3$1 = toAbsoluteIndex$4$1;
var lengthOfArrayLike$a$1 = lengthOfArrayLike$c;

// `Array.prototype.{ indexOf, includes }` methods implementation
var createMethod$3$1 = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject$8$1($this);
    var length = lengthOfArrayLike$a$1(O);
    var index = toAbsoluteIndex$3$1(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare -- NaN check
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare -- NaN check
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

var arrayIncludes$1 = {
  // `Array.prototype.includes` method
  // https://tc39.es/ecma262/#sec-array.prototype.includes
  includes: createMethod$3$1(true),
  // `Array.prototype.indexOf` method
  // https://tc39.es/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod$3$1(false)
};

var hiddenKeys$6$1 = {};

var uncurryThis$g$1 = functionUncurryThis$1;
var hasOwn$g$1 = hasOwnProperty_1$1;
var toIndexedObject$7$1 = toIndexedObject$a$1;
var indexOf$6 = arrayIncludes$1.indexOf;
var hiddenKeys$5$1 = hiddenKeys$6$1;

var push$6$1 = uncurryThis$g$1([].push);

var objectKeysInternal$1 = function (object, names) {
  var O = toIndexedObject$7$1(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) !hasOwn$g$1(hiddenKeys$5$1, key) && hasOwn$g$1(O, key) && push$6$1(result, key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (hasOwn$g$1(O, key = names[i++])) {
    ~indexOf$6(result, key) || push$6$1(result, key);
  }
  return result;
};

// IE8- don't enum bug keys
var enumBugKeys$3$1 = [
  'constructor',
  'hasOwnProperty',
  'isPrototypeOf',
  'propertyIsEnumerable',
  'toLocaleString',
  'toString',
  'valueOf'
];

var internalObjectKeys$1$1 = objectKeysInternal$1;
var enumBugKeys$2$1 = enumBugKeys$3$1;

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
// eslint-disable-next-line es/no-object-keys -- safe
var objectKeys$3$1 = Object.keys || function keys(O) {
  return internalObjectKeys$1$1(O, enumBugKeys$2$1);
};

var DESCRIPTORS$b$1 = descriptors$1;
var V8_PROTOTYPE_DEFINE_BUG$2 = v8PrototypeDefineBug$1;
var definePropertyModule$2$1 = objectDefineProperty$1;
var anObject$b$1 = anObject$d$1;
var toIndexedObject$6$1 = toIndexedObject$a$1;
var objectKeys$2$1 = objectKeys$3$1;

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
objectDefineProperties$1.f = DESCRIPTORS$b$1 && !V8_PROTOTYPE_DEFINE_BUG$2 ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject$b$1(O);
  var props = toIndexedObject$6$1(Properties);
  var keys = objectKeys$2$1(Properties);
  var length = keys.length;
  var index = 0;
  var key;
  while (length > index) definePropertyModule$2$1.f(O, key = keys[index++], props[key]);
  return O;
};

var getBuiltIn$c$1 = getBuiltIn$f;

var html$2 = getBuiltIn$c$1('document', 'documentElement');

var shared$5$1 = sharedExports$1;
var uid$2$1 = uid$4$1;

var keys$7 = shared$5$1('keys');

var sharedKey$4$1 = function (key) {
  return keys$7[key] || (keys$7[key] = uid$2$1(key));
};

/* global ActiveXObject -- old IE, WSH */

var anObject$a$1 = anObject$d$1;
var definePropertiesModule$1$1 = objectDefineProperties$1;
var enumBugKeys$1$1 = enumBugKeys$3$1;
var hiddenKeys$4$1 = hiddenKeys$6$1;
var html$1$1 = html$2;
var documentCreateElement$2 = documentCreateElement$1$1;
var sharedKey$3$1 = sharedKey$4$1;

var GT$1 = '>';
var LT$1 = '<';
var PROTOTYPE$1$1 = 'prototype';
var SCRIPT$1 = 'script';
var IE_PROTO$1$1 = sharedKey$3$1('IE_PROTO');

var EmptyConstructor$1 = function () { /* empty */ };

var scriptTag$1 = function (content) {
  return LT$1 + SCRIPT$1 + GT$1 + content + LT$1 + '/' + SCRIPT$1 + GT$1;
};

// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
var NullProtoObjectViaActiveX$1 = function (activeXDocument) {
  activeXDocument.write(scriptTag$1(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak
  return temp;
};

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var NullProtoObjectViaIFrame$1 = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement$2('iframe');
  var JS = 'java' + SCRIPT$1 + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html$1$1.appendChild(iframe);
  // https://github.com/zloirock/core-js/issues/475
  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag$1('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
};

// Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug
var activeXDocument$1;
var NullProtoObject$1 = function () {
  try {
    activeXDocument$1 = new ActiveXObject('htmlfile');
  } catch (error) { /* ignore */ }
  NullProtoObject$1 = typeof document != 'undefined'
    ? document.domain && activeXDocument$1
      ? NullProtoObjectViaActiveX$1(activeXDocument$1) // old IE
      : NullProtoObjectViaIFrame$1()
    : NullProtoObjectViaActiveX$1(activeXDocument$1); // WSH
  var length = enumBugKeys$1$1.length;
  while (length--) delete NullProtoObject$1[PROTOTYPE$1$1][enumBugKeys$1$1[length]];
  return NullProtoObject$1();
};

hiddenKeys$4$1[IE_PROTO$1$1] = true;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
// eslint-disable-next-line es/no-object-create -- safe
var objectCreate$1 = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    EmptyConstructor$1[PROTOTYPE$1$1] = anObject$a$1(O);
    result = new EmptyConstructor$1();
    EmptyConstructor$1[PROTOTYPE$1$1] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO$1$1] = O;
  } else result = NullProtoObject$1();
  return Properties === undefined ? result : definePropertiesModule$1$1.f(result, Properties);
};

var objectGetOwnPropertyNames$1 = {};

var internalObjectKeys$2 = objectKeysInternal$1;
var enumBugKeys$4 = enumBugKeys$3$1;

var hiddenKeys$3$1 = enumBugKeys$4.concat('length', 'prototype');

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
// eslint-disable-next-line es/no-object-getownpropertynames -- safe
objectGetOwnPropertyNames$1.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return internalObjectKeys$2(O, hiddenKeys$3$1);
};

var objectGetOwnPropertyNamesExternal$1 = {};

var toAbsoluteIndex$2$1 = toAbsoluteIndex$4$1;
var lengthOfArrayLike$9$1 = lengthOfArrayLike$c;
var createProperty$4$1 = createProperty$6$1;

var $Array$2$1 = Array;
var max$2$1 = Math.max;

var arraySliceSimple$1 = function (O, start, end) {
  var length = lengthOfArrayLike$9$1(O);
  var k = toAbsoluteIndex$2$1(start, length);
  var fin = toAbsoluteIndex$2$1(end === undefined ? length : end, length);
  var result = $Array$2$1(max$2$1(fin - k, 0));
  for (var n = 0; k < fin; k++, n++) createProperty$4$1(result, n, O[k]);
  result.length = n;
  return result;
};

/* eslint-disable es/no-object-getownpropertynames -- safe */

var classof$a$1 = classofRaw$2$1;
var toIndexedObject$5$1 = toIndexedObject$a$1;
var $getOwnPropertyNames$1$1 = objectGetOwnPropertyNames$1.f;
var arraySlice$6$1 = arraySliceSimple$1;

var windowNames$1 = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames$1 = function (it) {
  try {
    return $getOwnPropertyNames$1$1(it);
  } catch (error) {
    return arraySlice$6$1(windowNames$1);
  }
};

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
objectGetOwnPropertyNamesExternal$1.f = function getOwnPropertyNames(it) {
  return windowNames$1 && classof$a$1(it) == 'Window'
    ? getWindowNames$1(it)
    : $getOwnPropertyNames$1$1(toIndexedObject$5$1(it));
};

var objectGetOwnPropertySymbols$1 = {};

// eslint-disable-next-line es/no-object-getownpropertysymbols -- safe
objectGetOwnPropertySymbols$1.f = Object.getOwnPropertySymbols;

var createNonEnumerableProperty$7 = createNonEnumerableProperty$9;

var defineBuiltIn$6 = function (target, key, value, options) {
  if (options && options.enumerable) target[key] = value;
  else createNonEnumerableProperty$7(target, key, value);
  return target;
};

var defineProperty$6$1 = objectDefineProperty$1;

var defineBuiltInAccessor$3$1 = function (target, name, descriptor) {
  return defineProperty$6$1.f(target, name, descriptor);
};

var wellKnownSymbolWrapped$1 = {};

var wellKnownSymbol$f$1 = wellKnownSymbol$m;

wellKnownSymbolWrapped$1.f = wellKnownSymbol$f$1;

var path$k$1 = path$o$1;
var hasOwn$f$1 = hasOwnProperty_1$1;
var wrappedWellKnownSymbolModule$1$1 = wellKnownSymbolWrapped$1;
var defineProperty$5$1 = objectDefineProperty$1.f;

var call$e$1 = functionCall$1;
var getBuiltIn$b$1 = getBuiltIn$f;
var wellKnownSymbol$e$1 = wellKnownSymbol$m;
var defineBuiltIn$5$1 = defineBuiltIn$6;

var symbolDefineToPrimitive$1 = function () {
  var Symbol = getBuiltIn$b$1('Symbol');
  var SymbolPrototype = Symbol && Symbol.prototype;
  var valueOf = SymbolPrototype && SymbolPrototype.valueOf;
  var TO_PRIMITIVE = wellKnownSymbol$e$1('toPrimitive');

if (SymbolPrototype && !SymbolPrototype[TO_PRIMITIVE]) {
    // `Symbol.prototype[@@toPrimitive]` method
    // https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
    // eslint-disable-next-line no-unused-vars -- required for .length
    defineBuiltIn$5$1(SymbolPrototype, TO_PRIMITIVE, function (hint) {
      return call$e$1(valueOf, this);
    }, { arity: 1 });
  }
};

var TO_STRING_TAG_SUPPORT$1$1 = toStringTagSupport$1;
var classof$9$1 = classof$d$1;

// `Object.prototype.toString` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.tostring
var objectToString$1 = TO_STRING_TAG_SUPPORT$1$1 ? {}.toString : function toString() {
  return '[object ' + classof$9$1(this) + ']';
};

var TO_STRING_TAG_SUPPORT$3 = toStringTagSupport$1;
var defineProperty$4$1 = objectDefineProperty$1.f;
var createNonEnumerableProperty$6$1 = createNonEnumerableProperty$9;
var hasOwn$e$1 = hasOwnProperty_1$1;
var toString$6$1 = objectToString$1;
var wellKnownSymbol$d$1 = wellKnownSymbol$m;

var TO_STRING_TAG$2$1 = wellKnownSymbol$d$1('toStringTag');

var global$e$1 = global$m;
var isCallable$b$1 = isCallable$m;

var WeakMap$1$2 = global$e$1.WeakMap;

var weakMapBasicDetection$1 = isCallable$b$1(WeakMap$1$2) && /native code/.test(String(WeakMap$1$2));

var NATIVE_WEAK_MAP$2 = weakMapBasicDetection$1;
var global$d$1 = global$m;
var isObject$a$1 = isObject$h$1;
var createNonEnumerableProperty$5$1 = createNonEnumerableProperty$9;
var hasOwn$d$1 = hasOwnProperty_1$1;
var shared$4$1 = sharedStore$1;
var sharedKey$2$1 = sharedKey$4$1;
var hiddenKeys$2$1 = hiddenKeys$6$1;

var OBJECT_ALREADY_INITIALIZED$1 = 'Object already initialized';
var TypeError$3 = global$d$1.TypeError;
var WeakMap$3 = global$d$1.WeakMap;
var set$4$1, get$9, has$1;

var enforce$1 = function (it) {
  return has$1(it) ? get$9(it) : set$4$1(it, {});
};

if (NATIVE_WEAK_MAP$2 || shared$4$1.state) {
  var store$4 = shared$4$1.state || (shared$4$1.state = new WeakMap$3());
  /* eslint-disable no-self-assign -- prototype methods protection */
  store$4.get = store$4.get;
  store$4.has = store$4.has;
  store$4.set = store$4.set;
  /* eslint-enable no-self-assign -- prototype methods protection */
  set$4$1 = function (it, metadata) {
    if (store$4.has(it)) throw TypeError$3(OBJECT_ALREADY_INITIALIZED$1);
    metadata.facade = it;
    store$4.set(it, metadata);
    return metadata;
  };
  get$9 = function (it) {
    return store$4.get(it) || {};
  };
  has$1 = function (it) {
    return store$4.has(it);
  };
} else {
  var STATE$1 = sharedKey$2$1('state');
  hiddenKeys$2$1[STATE$1] = true;
  set$4$1 = function (it, metadata) {
    if (hasOwn$d$1(it, STATE$1)) throw TypeError$3(OBJECT_ALREADY_INITIALIZED$1);
    metadata.facade = it;
    createNonEnumerableProperty$5$1(it, STATE$1, metadata);
    return metadata;
  };
  get$9 = function (it) {
    return hasOwn$d$1(it, STATE$1) ? it[STATE$1] : {};
  };
  has$1 = function (it) {
    return hasOwn$d$1(it, STATE$1);
  };
}

var internalState$1 = {
  set: set$4$1,
  get: get$9,
  has: has$1,
  enforce: enforce$1,
  getterFor: getterFor$1
};

var bind$h = functionBindContext$1;
var uncurryThis$f$1 = functionUncurryThis$1;
var IndexedObject$2$1 = indexedObject$1;
var toObject$a$1 = toObject$d$1;
var lengthOfArrayLike$8$1 = lengthOfArrayLike$c;
var arraySpeciesCreate$2$1 = arraySpeciesCreate$4;

var push$5$1 = uncurryThis$f$1([].push);

// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterReject }` methods implementation
var createMethod$2$1 = function (TYPE) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var IS_FILTER_REJECT = TYPE == 7;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  return function ($this, callbackfn, that, specificCreate) {
    var O = toObject$a$1($this);
    var self = IndexedObject$2$1(O);
    var boundFunction = bind$h(callbackfn, that);
    var length = lengthOfArrayLike$8$1(self);
    var index = 0;
    var create = specificCreate || arraySpeciesCreate$2$1;
    var target = IS_MAP ? create($this, length) : IS_FILTER || IS_FILTER_REJECT ? create($this, 0) : undefined;
    var value, result;
    for (;length > index; index++) if (NO_HOLES || index in self) {
      value = self[index];
      result = boundFunction(value, index, O);
      if (TYPE) {
        if (IS_MAP) target[index] = result; // map
        else if (result) switch (TYPE) {
          case 3: return true;              // some
          case 5: return value;             // find
          case 6: return index;             // findIndex
          case 2: push$5$1(target, value);      // filter
        } else switch (TYPE) {
          case 4: return false;             // every
          case 7: push$5$1(target, value);      // filterReject
        }
      }
    }
    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
  };
};

var arrayIteration$1 = {
  // `Array.prototype.forEach` method
  // https://tc39.es/ecma262/#sec-array.prototype.foreach
  forEach: createMethod$2$1(0),
  // `Array.prototype.map` method
  // https://tc39.es/ecma262/#sec-array.prototype.map
  map: createMethod$2$1(1),
  // `Array.prototype.filter` method
  // https://tc39.es/ecma262/#sec-array.prototype.filter
  filter: createMethod$2$1(2),
  // `Array.prototype.some` method
  // https://tc39.es/ecma262/#sec-array.prototype.some
  some: createMethod$2$1(3),
  // `Array.prototype.every` method
  // https://tc39.es/ecma262/#sec-array.prototype.every
  every: createMethod$2$1(4),
  // `Array.prototype.find` method
  // https://tc39.es/ecma262/#sec-array.prototype.find
  find: createMethod$2$1(5),
  // `Array.prototype.findIndex` method
  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
  findIndex: createMethod$2$1(6),
  // `Array.prototype.filterReject` method
  // https://github.com/tc39/proposal-array-filtering
  filterReject: createMethod$2$1(7)
};

var $$J$1 = _export$1;
var global$c$1 = global$m;
var call$d$1 = functionCall$1;
var uncurryThis$e$1 = functionUncurryThis$1;
var DESCRIPTORS$a$1 = descriptors$1;
var NATIVE_SYMBOL$3$1 = symbolConstructorDetection$1;
var fails$i$1 = fails$t$1;
var hasOwn$c$1 = hasOwnProperty_1$1;
var isPrototypeOf$i$1 = objectIsPrototypeOf$1;
var anObject$9$1 = anObject$d$1;
var toIndexedObject$4$1 = toIndexedObject$a$1;
var toPropertyKey$5 = toPropertyKey$4$1;
var $toString$1 = toString$7$1;
var createPropertyDescriptor$3$1 = createPropertyDescriptor$7;
var nativeObjectCreate$1 = objectCreate$1;
var objectKeys$1$1 = objectKeys$3$1;
var getOwnPropertyNamesModule$2$1 = objectGetOwnPropertyNames$1;
var getOwnPropertyNamesExternal$1 = objectGetOwnPropertyNamesExternal$1;
var getOwnPropertySymbolsModule$3$1 = objectGetOwnPropertySymbols$1;
var getOwnPropertyDescriptorModule$2$1 = objectGetOwnPropertyDescriptor$1;
var definePropertyModule$1$1 = objectDefineProperty$1;
var definePropertiesModule$2 = objectDefineProperties$1;
var propertyIsEnumerableModule$1$1 = objectPropertyIsEnumerable$1;
var defineBuiltIn$4$1 = defineBuiltIn$6;
var defineBuiltInAccessor$2$1 = defineBuiltInAccessor$3$1;
var shared$3$1 = sharedExports$1;
var sharedKey$1$1 = sharedKey$4$1;
var hiddenKeys$1$1 = hiddenKeys$6$1;
var uid$1$1 = uid$4$1;
var wellKnownSymbol$c$1 = wellKnownSymbol$m;
var wrappedWellKnownSymbolModule$2 = wellKnownSymbolWrapped$1;
var defineWellKnownSymbol$l$1 = wellKnownSymbolDefine$1;
var defineSymbolToPrimitive$1$1 = symbolDefineToPrimitive$1;
var setToStringTag$6$1 = setToStringTag$7;
var InternalStateModule$5$1 = internalState$1;
var $forEach$1$1 = arrayIteration$1.forEach;

var HIDDEN$1 = sharedKey$1$1('hidden');
var SYMBOL$1 = 'Symbol';
var PROTOTYPE$2 = 'prototype';

var setInternalState$5$1 = InternalStateModule$5$1.set;
var getInternalState$2$1 = InternalStateModule$5$1.getterFor(SYMBOL$1);

var ObjectPrototype$2$1 = Object[PROTOTYPE$2];
var $Symbol$1 = global$c$1.Symbol;
var SymbolPrototype$1 = $Symbol$1 && $Symbol$1[PROTOTYPE$2];
var TypeError$2$1 = global$c$1.TypeError;
var QObject$1 = global$c$1.QObject;
var nativeGetOwnPropertyDescriptor$1$1 = getOwnPropertyDescriptorModule$2$1.f;
var nativeDefineProperty$1 = definePropertyModule$1$1.f;
var nativeGetOwnPropertyNames$1 = getOwnPropertyNamesExternal$1.f;
var nativePropertyIsEnumerable$1 = propertyIsEnumerableModule$1$1.f;
var push$4$1 = uncurryThis$e$1([].push);

var AllSymbols$1 = shared$3$1('symbols');
var ObjectPrototypeSymbols$1 = shared$3$1('op-symbols');
var WellKnownSymbolsStore$1$1 = shared$3$1('wks');

// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var USE_SETTER$1 = !QObject$1 || !QObject$1[PROTOTYPE$2] || !QObject$1[PROTOTYPE$2].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDescriptor$1 = DESCRIPTORS$a$1 && fails$i$1(function () {
  return nativeObjectCreate$1(nativeDefineProperty$1({}, 'a', {
    get: function () { return nativeDefineProperty$1(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (O, P, Attributes) {
  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor$1$1(ObjectPrototype$2$1, P);
  if (ObjectPrototypeDescriptor) delete ObjectPrototype$2$1[P];
  nativeDefineProperty$1(O, P, Attributes);
  if (ObjectPrototypeDescriptor && O !== ObjectPrototype$2$1) {
    nativeDefineProperty$1(ObjectPrototype$2$1, P, ObjectPrototypeDescriptor);
  }
} : nativeDefineProperty$1;

var wrap$2 = function (tag, description) {
  var symbol = AllSymbols$1[tag] = nativeObjectCreate$1(SymbolPrototype$1);
  setInternalState$5$1(symbol, {
    type: SYMBOL$1,
    tag: tag,
    description: description
  });
  if (!DESCRIPTORS$a$1) symbol.description = description;
  return symbol;
};

var $defineProperties$1 = function defineProperties(O, Properties) {
  anObject$9$1(O);
  var properties = toIndexedObject$4$1(Properties);
  var keys = objectKeys$1$1(properties).concat($getOwnPropertySymbols$1(properties));
  $forEach$1$1(keys, function (key) {
    if (!DESCRIPTORS$a$1 || call$d$1($propertyIsEnumerable$3, properties, key)) $defineProperty$2(O, key, properties[key]);
  });
  return O;
};

var $create$1 = function create(O, Properties) {
  return Properties === undefined ? nativeObjectCreate$1(O) : $defineProperties$1(nativeObjectCreate$1(O), Properties);
};

var $propertyIsEnumerable$3 = function propertyIsEnumerable(V) {
  var P = toPropertyKey$5(V);
  var enumerable = call$d$1(nativePropertyIsEnumerable$1, this, P);
  if (this === ObjectPrototype$2$1 && hasOwn$c$1(AllSymbols$1, P) && !hasOwn$c$1(ObjectPrototypeSymbols$1, P)) return false;
  return enumerable || !hasOwn$c$1(this, P) || !hasOwn$c$1(AllSymbols$1, P) || hasOwn$c$1(this, HIDDEN$1) && this[HIDDEN$1][P]
    ? enumerable : true;
};

var $getOwnPropertyDescriptor$3 = function getOwnPropertyDescriptor(O, P) {
  var it = toIndexedObject$4$1(O);
  var key = toPropertyKey$5(P);
  if (it === ObjectPrototype$2$1 && hasOwn$c$1(AllSymbols$1, key) && !hasOwn$c$1(ObjectPrototypeSymbols$1, key)) return;
  var descriptor = nativeGetOwnPropertyDescriptor$1$1(it, key);
  if (descriptor && hasOwn$c$1(AllSymbols$1, key) && !(hasOwn$c$1(it, HIDDEN$1) && it[HIDDEN$1][key])) {
    descriptor.enumerable = true;
  }
  return descriptor;
};

var $getOwnPropertyNames$2 = function getOwnPropertyNames(O) {
  var names = nativeGetOwnPropertyNames$1(toIndexedObject$4$1(O));
  var result = [];
  $forEach$1$1(names, function (key) {
    if (!hasOwn$c$1(AllSymbols$1, key) && !hasOwn$c$1(hiddenKeys$1$1, key)) push$4$1(result, key);
  });
  return result;
};

// `Symbol` constructor
// https://tc39.es/ecma262/#sec-symbol-constructor
if (!NATIVE_SYMBOL$3$1) {
  $Symbol$1 = function Symbol() {
    if (isPrototypeOf$i$1(SymbolPrototype$1, this)) throw TypeError$2$1('Symbol is not a constructor');
    var description = !arguments.length || arguments[0] === undefined ? undefined : $toString$1(arguments[0]);
    var tag = uid$1$1(description);
    var setter = function (value) {
      if (this === ObjectPrototype$2$1) call$d$1(setter, ObjectPrototypeSymbols$1, value);
      if (hasOwn$c$1(this, HIDDEN$1) && hasOwn$c$1(this[HIDDEN$1], tag)) this[HIDDEN$1][tag] = false;
      setSymbolDescriptor$1(this, tag, createPropertyDescriptor$3$1(1, value));
    };
    if (DESCRIPTORS$a$1 && USE_SETTER$1) setSymbolDescriptor$1(ObjectPrototype$2$1, tag, { configurable: true, set: setter });
    return wrap$2(tag, description);
  };

SymbolPrototype$1 = $Symbol$1[PROTOTYPE$2];

defineBuiltIn$4$1(SymbolPrototype$1, 'toString', function toString() {
    return getInternalState$2$1(this).tag;
  });

defineBuiltIn$4$1($Symbol$1, 'withoutSetter', function (description) {
    return wrap$2(uid$1$1(description), description);
  });

propertyIsEnumerableModule$1$1.f = $propertyIsEnumerable$3;
  definePropertyModule$1$1.f = $defineProperty$2;
  definePropertiesModule$2.f = $defineProperties$1;
  getOwnPropertyDescriptorModule$2$1.f = $getOwnPropertyDescriptor$3;
  getOwnPropertyNamesModule$2$1.f = getOwnPropertyNamesExternal$1.f = $getOwnPropertyNames$2;
  getOwnPropertySymbolsModule$3$1.f = $getOwnPropertySymbols$1;

wrappedWellKnownSymbolModule$2.f = function (name) {
    return wrap$2(wellKnownSymbol$c$1(name), name);
  };

if (DESCRIPTORS$a$1) {
    // https://github.com/tc39/proposal-Symbol-description
    defineBuiltInAccessor$2$1(SymbolPrototype$1, 'description', {
      configurable: true,
      get: function description() {
        return getInternalState$2$1(this).description;
      }
    });
  }
}

$$J$1({ global: true, constructor: true, wrap: true, forced: !NATIVE_SYMBOL$3$1, sham: !NATIVE_SYMBOL$3$1 }, {
  Symbol: $Symbol$1
});

$forEach$1$1(objectKeys$1$1(WellKnownSymbolsStore$1$1), function (name) {
  defineWellKnownSymbol$l$1(name);
});

$$J$1({ target: SYMBOL$1, stat: true, forced: !NATIVE_SYMBOL$3$1 }, {
  useSetter: function () { USE_SETTER$1 = true; },
  useSimple: function () { USE_SETTER$1 = false; }
});

$$J$1({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL$3$1, sham: !DESCRIPTORS$a$1 }, {
  // `Object.create` method
  // https://tc39.es/ecma262/#sec-object.create
  create: $create$1,
  // `Object.defineProperty` method
  // https://tc39.es/ecma262/#sec-object.defineproperty
  defineProperty: $defineProperty$2,
  // `Object.defineProperties` method
  // https://tc39.es/ecma262/#sec-object.defineproperties
  defineProperties: $defineProperties$1,
  // `Object.getOwnPropertyDescriptor` method
  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor$3
});

$$J$1({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL$3$1 }, {
  // `Object.getOwnPropertyNames` method
  // https://tc39.es/ecma262/#sec-object.getownpropertynames
  getOwnPropertyNames: $getOwnPropertyNames$2
});

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
defineSymbolToPrimitive$1$1();

// `Symbol.prototype[@@toStringTag]` property
// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag$6$1($Symbol$1, SYMBOL$1);

hiddenKeys$1$1[HIDDEN$1] = true;

var NATIVE_SYMBOL$2$1 = symbolConstructorDetection$1;

/* eslint-disable es/no-symbol -- safe */
var symbolRegistryDetection$1 = NATIVE_SYMBOL$2$1 && !!Symbol['for'] && !!Symbol.keyFor;

var $$I$1 = _export$1;
var getBuiltIn$a$1 = getBuiltIn$f;
var hasOwn$b$1 = hasOwnProperty_1$1;
var toString$5$1 = toString$7$1;
var shared$2$1 = sharedExports$1;
var NATIVE_SYMBOL_REGISTRY$1$1 = symbolRegistryDetection$1;

var StringToSymbolRegistry$1 = shared$2$1('string-to-symbol-registry');
var SymbolToStringRegistry$1$1 = shared$2$1('symbol-to-string-registry');

// `Symbol.for` method
// https://tc39.es/ecma262/#sec-symbol.for
$$I$1({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY$1$1 }, {
  'for': function (key) {
    var string = toString$5$1(key);
    if (hasOwn$b$1(StringToSymbolRegistry$1, string)) return StringToSymbolRegistry$1[string];
    var symbol = getBuiltIn$a$1('Symbol')(string);
    StringToSymbolRegistry$1[string] = symbol;
    SymbolToStringRegistry$1$1[symbol] = string;
    return symbol;
  }
});

var $$H$1 = _export$1;
var hasOwn$a$1 = hasOwnProperty_1$1;
var isSymbol$2$1 = isSymbol$5$1;
var tryToString$4$1 = tryToString$6$1;
var shared$1$1 = sharedExports$1;
var NATIVE_SYMBOL_REGISTRY$2 = symbolRegistryDetection$1;

var SymbolToStringRegistry$2 = shared$1$1('symbol-to-string-registry');

// `Symbol.keyFor` method
// https://tc39.es/ecma262/#sec-symbol.keyfor
$$H$1({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY$2 }, {
  keyFor: function keyFor(sym) {
    if (!isSymbol$2$1(sym)) throw TypeError(tryToString$4$1(sym) + ' is not a symbol');
    if (hasOwn$a$1(SymbolToStringRegistry$2, sym)) return SymbolToStringRegistry$2[sym];
  }
});

var uncurryThis$d$1 = functionUncurryThis$1;

var arraySlice$5$1 = uncurryThis$d$1([].slice);

var uncurryThis$c$1 = functionUncurryThis$1;
var isArray$c$1 = isArray$f$1;
var isCallable$a$1 = isCallable$m;
var classof$8$1 = classofRaw$2$1;
var toString$4$1 = toString$7$1;

var push$3$1 = uncurryThis$c$1([].push);

var $$G$1 = _export$1;
var getBuiltIn$9$1 = getBuiltIn$f;
var apply$4$1 = functionApply$1;
var call$c$1 = functionCall$1;
var uncurryThis$b$1 = functionUncurryThis$1;
var fails$h$1 = fails$t$1;
var isCallable$9$1 = isCallable$m;
var isSymbol$1$1 = isSymbol$5$1;
var arraySlice$4$1 = arraySlice$5$1;
var getReplacerFunction$1 = getJsonReplacerFunction$1;
var NATIVE_SYMBOL$1$1 = symbolConstructorDetection$1;

var $String$1$1 = String;
var $stringify$1 = getBuiltIn$9$1('JSON', 'stringify');
var exec$3 = uncurryThis$b$1(/./.exec);
var charAt$2$1 = uncurryThis$b$1(''.charAt);
var charCodeAt$1$1 = uncurryThis$b$1(''.charCodeAt);
var replace$1$1 = uncurryThis$b$1(''.replace);
var numberToString$1 = uncurryThis$b$1(1.0.toString);

var tester$1 = /[\uD800-\uDFFF]/g;
var low$1 = /^[\uD800-\uDBFF]$/;
var hi$1 = /^[\uDC00-\uDFFF]$/;

// https://github.com/tc39/proposal-well-formed-stringify
var ILL_FORMED_UNICODE$1 = fails$h$1(function () {
  return $stringify$1('\uDF06\uD834') !== '"\\udf06\\ud834"'
    || $stringify$1('\uDEAD') !== '"\\udead"';
});

var stringifyWithSymbolsFix$1 = function (it, replacer) {
  var args = arraySlice$4$1(arguments);
  var $replacer = getReplacerFunction$1(replacer);
  if (!isCallable$9$1($replacer) && (it === undefined || isSymbol$1$1(it))) return; // IE8 returns string on undefined
  args[1] = function (key, value) {
    // some old implementations (like WebKit) could pass numbers as keys
    if (isCallable$9$1($replacer)) value = call$c$1($replacer, this, $String$1$1(key), value);
    if (!isSymbol$1$1(value)) return value;
  };
  return apply$4$1($stringify$1, null, args);
};

var fixIllFormed$1 = function (match, offset, string) {
  var prev = charAt$2$1(string, offset - 1);
  var next = charAt$2$1(string, offset + 1);
  if ((exec$3(low$1, match) && !exec$3(hi$1, next)) || (exec$3(hi$1, match) && !exec$3(low$1, prev))) {
    return '\\u' + numberToString$1(charCodeAt$1$1(match, 0), 16);
  } return match;
};

if ($stringify$1) {
  // `JSON.stringify` method
  // https://tc39.es/ecma262/#sec-json.stringify
  $$G$1({ target: 'JSON', stat: true, arity: 3, forced: WRONG_SYMBOLS_CONVERSION$1 || ILL_FORMED_UNICODE$1 }, {
    // eslint-disable-next-line no-unused-vars -- required for `.length`
    stringify: function stringify(it, replacer, space) {
      var args = arraySlice$4$1(arguments);
      var result = apply$4$1(WRONG_SYMBOLS_CONVERSION$1 ? stringifyWithSymbolsFix$1 : $stringify$1, null, args);
      return ILL_FORMED_UNICODE$1 && typeof result == 'string' ? replace$1$1(result, tester$1, fixIllFormed$1) : result;
    }
  });
}

var $$F$1 = _export$1;
var NATIVE_SYMBOL$6 = symbolConstructorDetection$1;
var fails$g$1 = fails$t$1;
var getOwnPropertySymbolsModule$2$1 = objectGetOwnPropertySymbols$1;
var toObject$9$1 = toObject$d$1;

// V8 ~ Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
// https://bugs.chromium.org/p/v8/issues/detail?id=3443
var FORCED$4$1 = !NATIVE_SYMBOL$6 || fails$g$1(function () { getOwnPropertySymbolsModule$2$1.f(1); });

// `Object.getOwnPropertySymbols` method
// https://tc39.es/ecma262/#sec-object.getownpropertysymbols
$$F$1({ target: 'Object', stat: true, forced: FORCED$4$1 }, {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    var $getOwnPropertySymbols = getOwnPropertySymbolsModule$2$1.f;
    return $getOwnPropertySymbols ? $getOwnPropertySymbols(toObject$9$1(it)) : [];
  }
});

var defineWellKnownSymbol$k$1 = wellKnownSymbolDefine$1;

// `Symbol.asyncIterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.asynciterator
defineWellKnownSymbol$k$1('asyncIterator');

var defineWellKnownSymbol$j$1 = wellKnownSymbolDefine$1;

// `Symbol.hasInstance` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.hasinstance
defineWellKnownSymbol$j$1('hasInstance');

var defineWellKnownSymbol$i$1 = wellKnownSymbolDefine$1;

// `Symbol.isConcatSpreadable` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.isconcatspreadable
defineWellKnownSymbol$i$1('isConcatSpreadable');

var defineWellKnownSymbol$h$1 = wellKnownSymbolDefine$1;

// `Symbol.iterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.iterator
defineWellKnownSymbol$h$1('iterator');

var defineWellKnownSymbol$g$1 = wellKnownSymbolDefine$1;

// `Symbol.match` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.match
defineWellKnownSymbol$g$1('match');

var defineWellKnownSymbol$f$1 = wellKnownSymbolDefine$1;

// `Symbol.matchAll` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.matchall
defineWellKnownSymbol$f$1('matchAll');

var defineWellKnownSymbol$e$1 = wellKnownSymbolDefine$1;

// `Symbol.replace` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.replace
defineWellKnownSymbol$e$1('replace');

var defineWellKnownSymbol$d$1 = wellKnownSymbolDefine$1;

// `Symbol.search` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.search
defineWellKnownSymbol$d$1('search');

var defineWellKnownSymbol$c$1 = wellKnownSymbolDefine$1;

// `Symbol.species` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.species
defineWellKnownSymbol$c$1('species');

var defineWellKnownSymbol$b$1 = wellKnownSymbolDefine$1;

// `Symbol.split` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.split
defineWellKnownSymbol$b$1('split');

var defineWellKnownSymbol$a$1 = wellKnownSymbolDefine$1;
var defineSymbolToPrimitive$2 = symbolDefineToPrimitive$1;

// `Symbol.toPrimitive` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.toprimitive
defineWellKnownSymbol$a$1('toPrimitive');

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
defineSymbolToPrimitive$2();

var getBuiltIn$8$1 = getBuiltIn$f;
var defineWellKnownSymbol$9$1 = wellKnownSymbolDefine$1;
var setToStringTag$5$1 = setToStringTag$7;

// `Symbol.toStringTag` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.tostringtag
defineWellKnownSymbol$9$1('toStringTag');

// `Symbol.prototype[@@toStringTag]` property
// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag$5$1(getBuiltIn$8$1('Symbol'), 'Symbol');

var defineWellKnownSymbol$8$1 = wellKnownSymbolDefine$1;

// `Symbol.unscopables` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.unscopables
defineWellKnownSymbol$8$1('unscopables');

var global$b$1 = global$m;
var setToStringTag$4$1 = setToStringTag$7;

// JSON[@@toStringTag] property
// https://tc39.es/ecma262/#sec-json-@@tostringtag
setToStringTag$4$1(global$b$1.JSON, 'JSON', true);

var path$j$1 = path$o$1;

var symbol$6$1 = path$j$1.Symbol;

var iterators$1 = {};

var DESCRIPTORS$9$1 = descriptors$1;
var hasOwn$9$1 = hasOwnProperty_1$1;

var FunctionPrototype$1$1 = Function.prototype;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getDescriptor$1 = DESCRIPTORS$9$1 && Object.getOwnPropertyDescriptor;

var EXISTS$2 = hasOwn$9$1(FunctionPrototype$1$1, 'name');
// additional protection from minified / mangled / dropped function names
var PROPER$1 = EXISTS$2 && (function something() { /* empty */ }).name === 'something';
var CONFIGURABLE$2 = EXISTS$2 && (!DESCRIPTORS$9$1 || (DESCRIPTORS$9$1 && getDescriptor$1(FunctionPrototype$1$1, 'name').configurable));

var functionName$1 = {
  EXISTS: EXISTS$2,
  PROPER: PROPER$1,
  CONFIGURABLE: CONFIGURABLE$2
};

var fails$f$1 = fails$t$1;

var correctPrototypeGetter$1 = !fails$f$1(function () {
  function F() { /* empty */ }
  F.prototype.constructor = null;
  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
  return Object.getPrototypeOf(new F()) !== F.prototype;
});

var hasOwn$8$1 = hasOwnProperty_1$1;
var isCallable$8$1 = isCallable$m;
var toObject$8$1 = toObject$d$1;
var sharedKey$5 = sharedKey$4$1;
var CORRECT_PROTOTYPE_GETTER$1$1 = correctPrototypeGetter$1;

var IE_PROTO$2 = sharedKey$5('IE_PROTO');
var $Object$6 = Object;
var ObjectPrototype$1$1 = $Object$6.prototype;

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
// eslint-disable-next-line es/no-object-getprototypeof -- safe
var objectGetPrototypeOf$1 = CORRECT_PROTOTYPE_GETTER$1$1 ? $Object$6.getPrototypeOf : function (O) {
  var object = toObject$8$1(O);
  if (hasOwn$8$1(object, IE_PROTO$2)) return object[IE_PROTO$2];
  var constructor = object.constructor;
  if (isCallable$8$1(constructor) && object instanceof constructor) {
    return constructor.prototype;
  } return object instanceof $Object$6 ? ObjectPrototype$1$1 : null;
};

var fails$e$1 = fails$t$1;
var isCallable$7$1 = isCallable$m;
var isObject$9$1 = isObject$h$1;
var create$c$1 = objectCreate$1;
var getPrototypeOf$8$1 = objectGetPrototypeOf$1;
var defineBuiltIn$3$1 = defineBuiltIn$6;
var wellKnownSymbol$b$1 = wellKnownSymbol$m;

var ITERATOR$4$1 = wellKnownSymbol$b$1('iterator');
var BUGGY_SAFARI_ITERATORS$1$1 = false;

// `%IteratorPrototype%` object
// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
var IteratorPrototype$1$1, PrototypeOfArrayIteratorPrototype$1, arrayIterator$1;

/* eslint-disable es/no-array-prototype-keys -- safe */
if ([].keys) {
  arrayIterator$1 = [].keys();
  // Safari 8 has buggy iterators w/o `next`
  if (!('next' in arrayIterator$1)) BUGGY_SAFARI_ITERATORS$1$1 = true;
  else {
    PrototypeOfArrayIteratorPrototype$1 = getPrototypeOf$8$1(getPrototypeOf$8$1(arrayIterator$1));
    if (PrototypeOfArrayIteratorPrototype$1 !== Object.prototype) IteratorPrototype$1$1 = PrototypeOfArrayIteratorPrototype$1;
  }
}

var NEW_ITERATOR_PROTOTYPE$1 = !isObject$9$1(IteratorPrototype$1$1) || fails$e$1(function () {
  var test = {};
  // FF44- legacy iterators case
  return IteratorPrototype$1$1[ITERATOR$4$1].call(test) !== test;
});

if (NEW_ITERATOR_PROTOTYPE$1) IteratorPrototype$1$1 = {};
else IteratorPrototype$1$1 = create$c$1(IteratorPrototype$1$1);

// `%IteratorPrototype%[@@iterator]()` method
// https://tc39.es/ecma262/#sec-%iteratorprototype%-@@iterator
if (!isCallable$7$1(IteratorPrototype$1$1[ITERATOR$4$1])) {
  defineBuiltIn$3$1(IteratorPrototype$1$1, ITERATOR$4$1, function () {
    return this;
  });
}

var iteratorsCore$1 = {
  IteratorPrototype: IteratorPrototype$1$1,
  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS$1$1
};

var IteratorPrototype$2 = iteratorsCore$1.IteratorPrototype;
var create$b$1 = objectCreate$1;
var createPropertyDescriptor$2$1 = createPropertyDescriptor$7;
var setToStringTag$3$1 = setToStringTag$7;
var Iterators$5$1 = iterators$1;

var returnThis$1$1 = function () { return this; };

var iteratorCreateConstructor$1 = function (IteratorConstructor, NAME, next, ENUMERABLE_NEXT) {
  var TO_STRING_TAG = NAME + ' Iterator';
  IteratorConstructor.prototype = create$b$1(IteratorPrototype$2, { next: createPropertyDescriptor$2$1(+!ENUMERABLE_NEXT, next) });
  setToStringTag$3$1(IteratorConstructor, TO_STRING_TAG, false, true);
  Iterators$5$1[TO_STRING_TAG] = returnThis$1$1;
  return IteratorConstructor;
};

var uncurryThis$a$1 = functionUncurryThis$1;
var aCallable$b = aCallable$e;

var functionUncurryThisAccessor$1 = function (object, key, method) {
  try {
    // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
    return uncurryThis$a$1(aCallable$b(Object.getOwnPropertyDescriptor(object, key)[method]));
  } catch (error) { /* empty */ }
};

var isCallable$6$1 = isCallable$m;

var $String$5 = String;
var $TypeError$9$1 = TypeError;

var aPossiblePrototype$1$1 = function (argument) {
  if (typeof argument == 'object' || isCallable$6$1(argument)) return argument;
  throw $TypeError$9$1("Can't set " + $String$5(argument) + ' as a prototype');
};

/* eslint-disable no-proto -- safe */

var uncurryThisAccessor$1 = functionUncurryThisAccessor$1;
var anObject$8$1 = anObject$d$1;
var aPossiblePrototype$2 = aPossiblePrototype$1$1;

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.
// eslint-disable-next-line es/no-object-setprototypeof -- safe
var objectSetPrototypeOf$1 = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;
  try {
    setter = uncurryThisAccessor$1(Object.prototype, '__proto__', 'set');
    setter(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) { /* empty */ }
  return function setPrototypeOf(O, proto) {
    anObject$8$1(O);
    aPossiblePrototype$2(proto);
    if (CORRECT_SETTER) setter(O, proto);
    else O.__proto__ = proto;
    return O;
  };
}() : undefined);

var $$E$1 = _export$1;
var call$b$1 = functionCall$1;
var FunctionName$1 = functionName$1;
var createIteratorConstructor$1 = iteratorCreateConstructor$1;
var getPrototypeOf$7$1 = objectGetPrototypeOf$1;
var setToStringTag$2$1 = setToStringTag$7;
var defineBuiltIn$2$1 = defineBuiltIn$6;
var wellKnownSymbol$a$1 = wellKnownSymbol$m;
var Iterators$4$1 = iterators$1;
var IteratorsCore$1 = iteratorsCore$1;

var PROPER_FUNCTION_NAME$2 = FunctionName$1.PROPER;
var BUGGY_SAFARI_ITERATORS$2 = IteratorsCore$1.BUGGY_SAFARI_ITERATORS;
var ITERATOR$3$1 = wellKnownSymbol$a$1('iterator');
var KEYS$1 = 'keys';
var VALUES$1 = 'values';
var ENTRIES$1 = 'entries';

var returnThis$2 = function () { return this; };

var iteratorDefine$1 = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
  createIteratorConstructor$1(IteratorConstructor, NAME, next);

var TO_STRING_TAG = NAME + ' Iterator';
  var INCORRECT_VALUES_NAME = false;
  var IterablePrototype = Iterable.prototype;
  var nativeIterator = IterablePrototype[ITERATOR$3$1]
    || IterablePrototype['@@iterator']
    || DEFAULT && IterablePrototype[DEFAULT];
  var defaultIterator = !BUGGY_SAFARI_ITERATORS$2 && nativeIterator || getIterationMethod(DEFAULT);
  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
  var CurrentIteratorPrototype, methods, KEY;

// fix native
  if (anyNativeIterator) {
    CurrentIteratorPrototype = getPrototypeOf$7$1(anyNativeIterator.call(new Iterable()));
    if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
      // Set @@toStringTag to native iterators
      setToStringTag$2$1(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
      Iterators$4$1[TO_STRING_TAG] = returnThis$2;
    }
  }

// fix Array.prototype.{ values, @@iterator }.name in V8 / FF
  if (PROPER_FUNCTION_NAME$2 && DEFAULT == VALUES$1 && nativeIterator && nativeIterator.name !== VALUES$1) {
    {
      INCORRECT_VALUES_NAME = true;
      defaultIterator = function values() { return call$b$1(nativeIterator, this); };
    }
  }

// export additional methods
  if (DEFAULT) {
    methods = {
      values: getIterationMethod(VALUES$1),
      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS$1),
      entries: getIterationMethod(ENTRIES$1)
    };
    if (FORCED) for (KEY in methods) {
      if (BUGGY_SAFARI_ITERATORS$2 || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
        defineBuiltIn$2$1(IterablePrototype, KEY, methods[KEY]);
      }
    } else $$E$1({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS$2 || INCORRECT_VALUES_NAME }, methods);
  }

// define iterator
  if ((FORCED) && IterablePrototype[ITERATOR$3$1] !== defaultIterator) {
    defineBuiltIn$2$1(IterablePrototype, ITERATOR$3$1, defaultIterator, { name: DEFAULT });
  }
  Iterators$4$1[NAME] = defaultIterator;

return methods;
};

// `CreateIterResultObject` abstract operation
// https://tc39.es/ecma262/#sec-createiterresultobject
var createIterResultObject$3$1 = function (value, done) {
  return { value: value, done: done };
};

var toIndexedObject$3$1 = toIndexedObject$a$1;
var Iterators$3$1 = iterators$1;
var InternalStateModule$4$1 = internalState$1;
objectDefineProperty$1.f;
var defineIterator$2$1 = iteratorDefine$1;
var createIterResultObject$2$1 = createIterResultObject$3$1;

var ARRAY_ITERATOR$1 = 'Array Iterator';
var setInternalState$4$1 = InternalStateModule$4$1.set;
var getInternalState$1$1 = InternalStateModule$4$1.getterFor(ARRAY_ITERATOR$1);

// `Array.prototype.entries` method
// https://tc39.es/ecma262/#sec-array.prototype.entries
// `Array.prototype.keys` method
// https://tc39.es/ecma262/#sec-array.prototype.keys
// `Array.prototype.values` method
// https://tc39.es/ecma262/#sec-array.prototype.values
// `Array.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
// `CreateArrayIterator` internal method
// https://tc39.es/ecma262/#sec-createarrayiterator
defineIterator$2$1(Array, 'Array', function (iterated, kind) {
  setInternalState$4$1(this, {
    type: ARRAY_ITERATOR$1,
    target: toIndexedObject$3$1(iterated), // target
    index: 0,                          // next index
    kind: kind                         // kind
  });
// `%ArrayIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
}, function () {
  var state = getInternalState$1$1(this);
  var target = state.target;
  var kind = state.kind;
  var index = state.index++;
  if (!target || index >= target.length) {
    state.target = undefined;
    return createIterResultObject$2$1(undefined, true);
  }
  if (kind == 'keys') return createIterResultObject$2$1(index, false);
  if (kind == 'values') return createIterResultObject$2$1(target[index], false);
  return createIterResultObject$2$1([index, target[index]], false);
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values%
// https://tc39.es/ecma262/#sec-createunmappedargumentsobject
// https://tc39.es/ecma262/#sec-createmappedargumentsobject
Iterators$3$1.Arguments = Iterators$3$1.Array;

// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
var domIterables$1 = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};

var DOMIterables$4 = domIterables$1;
var global$a$1 = global$m;
var classof$7$1 = classof$d$1;
var createNonEnumerableProperty$4$1 = createNonEnumerableProperty$9;
var Iterators$2$1 = iterators$1;
var wellKnownSymbol$9$1 = wellKnownSymbol$m;

var TO_STRING_TAG$1$1 = wellKnownSymbol$9$1('toStringTag');

for (var COLLECTION_NAME$1 in DOMIterables$4) {
  var Collection$1 = global$a$1[COLLECTION_NAME$1];
  var CollectionPrototype$1 = Collection$1 && Collection$1.prototype;
  if (CollectionPrototype$1 && classof$7$1(CollectionPrototype$1) !== TO_STRING_TAG$1$1) {
    createNonEnumerableProperty$4$1(CollectionPrototype$1, TO_STRING_TAG$1$1, COLLECTION_NAME$1);
  }
  Iterators$2$1[COLLECTION_NAME$1] = Iterators$2$1.Array;
}

var parent$12$1 = symbol$6$1;

var symbol$5$1 = parent$12$1;

var defineWellKnownSymbol$7$1 = wellKnownSymbolDefine$1;

// `Symbol.dispose` well-known symbol
// https://github.com/tc39/proposal-explicit-resource-management
defineWellKnownSymbol$7$1('dispose');

var parent$11$1 = symbol$5$1;

var symbol$4$1 = parent$11$1;

var defineWellKnownSymbol$6$1 = wellKnownSymbolDefine$1;

// `Symbol.asyncDispose` well-known symbol
// https://github.com/tc39/proposal-async-explicit-resource-management
defineWellKnownSymbol$6$1('asyncDispose');

var $$D$1 = _export$1;
var getBuiltIn$7$1 = getBuiltIn$f;
var uncurryThis$9$1 = functionUncurryThis$1;

var Symbol$2$1 = getBuiltIn$7$1('Symbol');
var keyFor$1 = Symbol$2$1.keyFor;
var thisSymbolValue$1$1 = uncurryThis$9$1(Symbol$2$1.prototype.valueOf);

// `Symbol.isRegistered` method
// https://tc39.es/proposal-symbol-predicates/#sec-symbol-isregistered
$$D$1({ target: 'Symbol', stat: true }, {
  isRegistered: function isRegistered(value) {
    try {
      return keyFor$1(thisSymbolValue$1$1(value)) !== undefined;
    } catch (error) {
      return false;
    }
  }
});

var $$C$1 = _export$1;
var shared$8 = sharedExports$1;
var getBuiltIn$6$1 = getBuiltIn$f;
var uncurryThis$8$1 = functionUncurryThis$1;
var isSymbol$6 = isSymbol$5$1;
var wellKnownSymbol$8$1 = wellKnownSymbol$m;

var Symbol$1$1 = getBuiltIn$6$1('Symbol');
var $isWellKnown$1 = Symbol$1$1.isWellKnown;
var getOwnPropertyNames$5 = getBuiltIn$6$1('Object', 'getOwnPropertyNames');
var thisSymbolValue$2 = uncurryThis$8$1(Symbol$1$1.prototype.valueOf);
var WellKnownSymbolsStore$3 = shared$8('wks');

for (var i$1 = 0, symbolKeys$1 = getOwnPropertyNames$5(Symbol$1$1), symbolKeysLength$1 = symbolKeys$1.length; i$1 < symbolKeysLength$1; i$1++) {
  // some old engines throws on access to some keys like `arguments` or `caller`
  try {
    var symbolKey$1 = symbolKeys$1[i$1];
    if (isSymbol$6(Symbol$1$1[symbolKey$1])) wellKnownSymbol$8$1(symbolKey$1);
  } catch (error) { /* empty */ }
}

// `Symbol.isWellKnown` method
// https://tc39.es/proposal-symbol-predicates/#sec-symbol-iswellknown
// We should patch it for newly added well-known symbols. If it's not required, this module just will not be injected
$$C$1({ target: 'Symbol', stat: true, forced: true }, {
  isWellKnown: function isWellKnown(value) {
    if ($isWellKnown$1 && $isWellKnown$1(value)) return true;
    try {
      var symbol = thisSymbolValue$2(value);
      for (var j = 0, keys = getOwnPropertyNames$5(WellKnownSymbolsStore$3), keysLength = keys.length; j < keysLength; j++) {
        if (WellKnownSymbolsStore$3[keys[j]] == symbol) return true;
      }
    } catch (error) { /* empty */ }
    return false;
  }
});

var defineWellKnownSymbol$5$1 = wellKnownSymbolDefine$1;

// `Symbol.matcher` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol$5$1('matcher');

var defineWellKnownSymbol$4$1 = wellKnownSymbolDefine$1;

// `Symbol.metadataKey` well-known symbol
// https://github.com/tc39/proposal-decorator-metadata
defineWellKnownSymbol$4$1('metadataKey');

var defineWellKnownSymbol$3$1 = wellKnownSymbolDefine$1;

// `Symbol.observable` well-known symbol
// https://github.com/tc39/proposal-observable
defineWellKnownSymbol$3$1('observable');

// TODO: Remove from `core-js@4`
var defineWellKnownSymbol$2$1 = wellKnownSymbolDefine$1;

// `Symbol.metadata` well-known symbol
// https://github.com/tc39/proposal-decorators
defineWellKnownSymbol$2$1('metadata');

// TODO: remove from `core-js@4`
var defineWellKnownSymbol$1$1 = wellKnownSymbolDefine$1;

// `Symbol.patternMatch` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol$1$1('patternMatch');

// TODO: remove from `core-js@4`
var defineWellKnownSymbol$m = wellKnownSymbolDefine$1;

defineWellKnownSymbol$m('replaceAll');

var parent$10$1 = symbol$4$1;

// TODO: Remove from `core-js@4`

var symbol$3$1 = parent$10$1;

var symbol$2$1 = symbol$3$1;

var symbol$1$1 = symbol$2$1;

var _Symbol$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(symbol$1$1);

var uncurryThis$7$1 = functionUncurryThis$1;
var toIntegerOrInfinity$1$1 = toIntegerOrInfinity$4$1;
var toString$3$1 = toString$7$1;
var requireObjectCoercible$6 = requireObjectCoercible$3$1;

var charAt$1$1 = uncurryThis$7$1(''.charAt);
var charCodeAt$2 = uncurryThis$7$1(''.charCodeAt);
var stringSlice$2 = uncurryThis$7$1(''.slice);

var createMethod$1$1 = function (CONVERT_TO_STRING) {
  return function ($this, pos) {
    var S = toString$3$1(requireObjectCoercible$6($this));
    var position = toIntegerOrInfinity$1$1(pos);
    var size = S.length;
    var first, second;
    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
    first = charCodeAt$2(S, position);
    return first < 0xD800 || first > 0xDBFF || position + 1 === size
      || (second = charCodeAt$2(S, position + 1)) < 0xDC00 || second > 0xDFFF
        ? CONVERT_TO_STRING
          ? charAt$1$1(S, position)
          : first
        : CONVERT_TO_STRING
          ? stringSlice$2(S, position, position + 2)
          : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
  };
};

var stringMultibyte$1 = {
  // `String.prototype.codePointAt` method
  // https://tc39.es/ecma262/#sec-string.prototype.codepointat
  codeAt: createMethod$1$1(false),
  // `String.prototype.at` method
  // https://github.com/mathiasbynens/String.prototype.at
  charAt: createMethod$1$1(true)
};

var charAt$4 = stringMultibyte$1.charAt;
var toString$2$1 = toString$7$1;
var InternalStateModule$3$1 = internalState$1;
var defineIterator$1$1 = iteratorDefine$1;
var createIterResultObject$1$1 = createIterResultObject$3$1;

var STRING_ITERATOR$1 = 'String Iterator';
var setInternalState$3$1 = InternalStateModule$3$1.set;
var getInternalState$3 = InternalStateModule$3$1.getterFor(STRING_ITERATOR$1);

// `String.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-string.prototype-@@iterator
defineIterator$1$1(String, 'String', function (iterated) {
  setInternalState$3$1(this, {
    type: STRING_ITERATOR$1,
    string: toString$2$1(iterated),
    index: 0
  });
// `%StringIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
}, function next() {
  var state = getInternalState$3(this);
  var string = state.string;
  var index = state.index;
  var point;
  if (index >= string.length) return createIterResultObject$1$1(undefined, true);
  point = charAt$4(string, index);
  state.index += point.length;
  return createIterResultObject$1$1(point, false);
});

var WrappedWellKnownSymbolModule$1$1 = wellKnownSymbolWrapped$1;

var iterator$6$1 = WrappedWellKnownSymbolModule$1$1.f('iterator');

var parent$$$1 = iterator$6$1;

var iterator$5$1 = parent$$$1;

var parent$_$1 = iterator$5$1;

var iterator$4$1 = parent$_$1;

var parent$Z$1 = iterator$4$1;

var iterator$3$1 = parent$Z$1;

var iterator$2$1 = iterator$3$1;

var iterator$1$1 = iterator$2$1;

var _Symbol$iterator$2 = /*@__PURE__*/getDefaultExportFromCjs$2(iterator$1$1);

function _typeof$1(obj) {
  "@babel/helpers - typeof";

return _typeof$1 = "function" == typeof _Symbol$1$1 && "symbol" == typeof _Symbol$iterator$2 ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && "function" == typeof _Symbol$1$1 && obj.constructor === _Symbol$1$1 && obj !== _Symbol$1$1.prototype ? "symbol" : typeof obj;
  }, _typeof$1(obj);
}

var WrappedWellKnownSymbolModule$2 = wellKnownSymbolWrapped$1;

var toPrimitive$5$1 = WrappedWellKnownSymbolModule$2.f('toPrimitive');

var parent$Y$1 = toPrimitive$5$1;

var toPrimitive$4$1 = parent$Y$1;

var parent$X$1 = toPrimitive$4$1;

var toPrimitive$3$1 = parent$X$1;

var parent$W$1 = toPrimitive$3$1;

var toPrimitive$2$1 = parent$W$1;

var toPrimitive$1$1 = toPrimitive$2$1;

var toPrimitive$8 = toPrimitive$1$1;

var _Symbol$toPrimitive$1 = /*@__PURE__*/getDefaultExportFromCjs$2(toPrimitive$8);

function _toPrimitive$1(input, hint) {
  if (_typeof$1(input) !== "object" || input === null) return input;
  var prim = input[_Symbol$toPrimitive$1];
  if (prim !== undefined) {
    var res = prim.call(input, hint || "default");
    if (_typeof$1(res) !== "object") return res;
    throw new TypeError("@@toPrimitive must return a primitive value.");
  }
  return (hint === "string" ? String : Number)(input);
}

function _toPropertyKey$1(arg) {
  var key = _toPrimitive$1(arg, "string");
  return _typeof$1(key) === "symbol" ? key : String(key);
}

var uncurryThis$6$1 = functionUncurryThis$1;
var aCallable$a = aCallable$e;
var isObject$8$1 = isObject$h$1;
var hasOwn$7$1 = hasOwnProperty_1$1;
var arraySlice$3$1 = arraySlice$5$1;
var NATIVE_BIND$5 = functionBindNative$1;

var $Function$1 = Function;
var concat$6$1 = uncurryThis$6$1([].concat);
var join$1 = uncurryThis$6$1([].join);
var factories$1 = {};

var construct$3$1 = function (C, argsLength, args) {
  if (!hasOwn$7$1(factories$1, argsLength)) {
    for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';
    factories$1[argsLength] = $Function$1('C,a', 'return new C(' + join$1(list, ',') + ')');
  } return factories$1[argsLength](C, args);
};

// `Function.prototype.bind` method implementation
// https://tc39.es/ecma262/#sec-function.prototype.bind
// eslint-disable-next-line es/no-function-prototype-bind -- detection
var functionBind$1 = NATIVE_BIND$5 ? $Function$1.bind : function bind(that /* , ...args */) {
  var F = aCallable$a(this);
  var Prototype = F.prototype;
  var partArgs = arraySlice$3$1(arguments, 1);
  var boundFunction = function bound(/* args... */) {
    var args = concat$6$1(partArgs, arraySlice$3$1(arguments));
    return this instanceof boundFunction ? construct$3$1(F, args.length, args) : F.apply(that, args);
  };
  if (isObject$8$1(Prototype)) boundFunction.prototype = Prototype;
  return boundFunction;
};

// TODO: Remove from `core-js@4`
var $$B$1 = _export$1;
var bind$g$1 = functionBind$1;

// `Function.prototype.bind` method
// https://tc39.es/ecma262/#sec-function.prototype.bind
// eslint-disable-next-line es/no-function-prototype-bind -- detection
$$B$1({ target: 'Function', proto: true, forced: Function.bind !== bind$g$1 }, {
  bind: bind$g$1
});

var path$i$1 = path$o$1;

var entryVirtual$f$1 = function (CONSTRUCTOR) {
  return path$i$1[CONSTRUCTOR + 'Prototype'];
};

var entryVirtual$e$1 = entryVirtual$f$1;

var bind$f$1 = entryVirtual$e$1('Function').bind;

var isPrototypeOf$h$1 = objectIsPrototypeOf$1;
var method$e$1 = bind$f$1;

var FunctionPrototype$4 = Function.prototype;

var bind$e$1 = function (it) {
  var own = it.bind;
  return it === FunctionPrototype$4 || (isPrototypeOf$h$1(FunctionPrototype$4, it) && own === FunctionPrototype$4.bind) ? method$e$1 : own;
};

var parent$V$1 = bind$e$1;

var bind$d$1 = parent$V$1;

var bind$c$1 = bind$d$1;

var _bindInstanceProperty$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(bind$c$1);

var aCallable$9 = aCallable$e;
var toObject$7$1 = toObject$d$1;
var IndexedObject$1$1 = indexedObject$1;
var lengthOfArrayLike$7$1 = lengthOfArrayLike$c;

var $TypeError$8$1 = TypeError;

// `Array.prototype.{ reduce, reduceRight }` methods implementation
var createMethod$6 = function (IS_RIGHT) {
  return function (that, callbackfn, argumentsLength, memo) {
    aCallable$9(callbackfn);
    var O = toObject$7$1(that);
    var self = IndexedObject$1$1(O);
    var length = lengthOfArrayLike$7$1(O);
    var index = IS_RIGHT ? length - 1 : 0;
    var i = IS_RIGHT ? -1 : 1;
    if (argumentsLength < 2) while (true) {
      if (index in self) {
        memo = self[index];
        index += i;
        break;
      }
      index += i;
      if (IS_RIGHT ? index < 0 : length <= index) {
        throw $TypeError$8$1('Reduce of empty array with no initial value');
      }
    }
    for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {
      memo = callbackfn(memo, self[index], index, O);
    }
    return memo;
  };
};

var arrayReduce$1 = {
  // `Array.prototype.reduce` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduce
  left: createMethod$6(false),
  // `Array.prototype.reduceRight` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduceright
  right: createMethod$6(true)
};

var fails$d$1 = fails$t$1;

var classof$6$1 = classofRaw$2$1;

var engineIsNode$1 = typeof process != 'undefined' && classof$6$1(process) == 'process';

var $$A$1 = _export$1;
var $reduce$1 = arrayReduce$1.left;
var arrayMethodIsStrict$3$1 = arrayMethodIsStrict$4$1;
var CHROME_VERSION$1 = engineV8Version$1;
var IS_NODE$4 = engineIsNode$1;

// Chrome 80-82 has a critical bug
// https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
var CHROME_BUG$1 = !IS_NODE$4 && CHROME_VERSION$1 > 79 && CHROME_VERSION$1 < 83;
var FORCED$3$1 = CHROME_BUG$1 || !arrayMethodIsStrict$3$1('reduce');

// `Array.prototype.reduce` method
// https://tc39.es/ecma262/#sec-array.prototype.reduce
$$A$1({ target: 'Array', proto: true, forced: FORCED$3$1 }, {
  reduce: function reduce(callbackfn /* , initialValue */) {
    var length = arguments.length;
    return $reduce$1(this, callbackfn, length, length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$d$1 = entryVirtual$f$1;

var reduce$3$1 = entryVirtual$d$1('Array').reduce;

var isPrototypeOf$g$1 = objectIsPrototypeOf$1;
var method$d$1 = reduce$3$1;

var ArrayPrototype$e$1 = Array.prototype;

var reduce$2$1 = function (it) {
  var own = it.reduce;
  return it === ArrayPrototype$e$1 || (isPrototypeOf$g$1(ArrayPrototype$e$1, it) && own === ArrayPrototype$e$1.reduce) ? method$d$1 : own;
};

var parent$U$1 = reduce$2$1;

var reduce$1$1 = parent$U$1;

var reduce$5 = reduce$1$1;

var _reduceInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(reduce$5);

var $$z$1 = _export$1;
var $filter$1 = arrayIteration$1.filter;
var arrayMethodHasSpeciesSupport$3$1 = arrayMethodHasSpeciesSupport$5$1;

var HAS_SPECIES_SUPPORT$3$1 = arrayMethodHasSpeciesSupport$3$1('filter');

// `Array.prototype.filter` method
// https://tc39.es/ecma262/#sec-array.prototype.filter
// with adding support of @@species
$$z$1({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$3$1 }, {
  filter: function filter(callbackfn /* , thisArg */) {
    return $filter$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$c$1 = entryVirtual$f$1;

var filter$3$1 = entryVirtual$c$1('Array').filter;

var isPrototypeOf$f$1 = objectIsPrototypeOf$1;
var method$c$1 = filter$3$1;

var ArrayPrototype$d$1 = Array.prototype;

var filter$2$1 = function (it) {
  var own = it.filter;
  return it === ArrayPrototype$d$1 || (isPrototypeOf$f$1(ArrayPrototype$d$1, it) && own === ArrayPrototype$d$1.filter) ? method$c$1 : own;
};

var parent$T$1 = filter$2$1;

var filter$1$1 = parent$T$1;

var filter$5 = filter$1$1;

var _filterInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(filter$5);

var $$y$1 = _export$1;
var $map$1 = arrayIteration$1.map;
var arrayMethodHasSpeciesSupport$2$1 = arrayMethodHasSpeciesSupport$5$1;

var HAS_SPECIES_SUPPORT$2$1 = arrayMethodHasSpeciesSupport$2$1('map');

// `Array.prototype.map` method
// https://tc39.es/ecma262/#sec-array.prototype.map
// with adding support of @@species
$$y$1({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$2$1 }, {
  map: function map(callbackfn /* , thisArg */) {
    return $map$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$b$1 = entryVirtual$f$1;

var map$6$1 = entryVirtual$b$1('Array').map;

var isPrototypeOf$e$1 = objectIsPrototypeOf$1;
var method$b$1 = map$6$1;

var ArrayPrototype$c$1 = Array.prototype;

var map$5$1 = function (it) {
  var own = it.map;
  return it === ArrayPrototype$c$1 || (isPrototypeOf$e$1(ArrayPrototype$c$1, it) && own === ArrayPrototype$c$1.map) ? method$b$1 : own;
};

var parent$S$1 = map$5$1;

var map$4$1 = parent$S$1;

var map$3$1 = map$4$1;

var _mapInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(map$3$1);

var isArray$b$1 = isArray$f$1;
var lengthOfArrayLike$6$1 = lengthOfArrayLike$c;
var doesNotExceedSafeInteger$1$1 = doesNotExceedSafeInteger$3;
var bind$b$1 = functionBindContext$1;

// `FlattenIntoArray` abstract operation
// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray
var flattenIntoArray$1 = function (target, original, source, sourceLen, start, depth, mapper, thisArg) {
  var targetIndex = start;
  var sourceIndex = 0;
  var mapFn = mapper ? bind$b$1(mapper, thisArg) : false;
  var element, elementLen;

while (sourceIndex < sourceLen) {
    if (sourceIndex in source) {
      element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];

if (depth > 0 && isArray$b$1(element)) {
        elementLen = lengthOfArrayLike$6$1(element);
        targetIndex = flattenIntoArray$1(target, original, element, elementLen, targetIndex, depth - 1) - 1;
      } else {
        doesNotExceedSafeInteger$1$1(targetIndex + 1);
        target[targetIndex] = element;
      }

targetIndex++;
    }
    sourceIndex++;
  }
  return targetIndex;
};

var flattenIntoArray_1 = flattenIntoArray$1;

var $$x$1 = _export$1;
var flattenIntoArray = flattenIntoArray_1;
var aCallable$8 = aCallable$e;
var toObject$6$1 = toObject$d$1;
var lengthOfArrayLike$5$1 = lengthOfArrayLike$c;
var arraySpeciesCreate$1$1 = arraySpeciesCreate$4;

// `Array.prototype.flatMap` method
// https://tc39.es/ecma262/#sec-array.prototype.flatmap
$$x$1({ target: 'Array', proto: true }, {
  flatMap: function flatMap(callbackfn /* , thisArg */) {
    var O = toObject$6$1(this);
    var sourceLen = lengthOfArrayLike$5$1(O);
    var A;
    aCallable$8(callbackfn);
    A = arraySpeciesCreate$1$1(O, 0);
    A.length = flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    return A;
  }
});

var entryVirtual$a$1 = entryVirtual$f$1;

entryVirtual$a$1('Array').flatMap;

var call$a$1 = functionCall$1;
var anObject$7$1 = anObject$d$1;
var getMethod$1$1 = getMethod$3$1;

var anObject$6$1 = anObject$d$1;
var iteratorClose$1$1 = iteratorClose$2$1;

// call something on iterator step with safe closing on error
var callWithSafeIterationClosing$1$1 = function (iterator, fn, value, ENTRIES) {
  try {
    return ENTRIES ? fn(anObject$6$1(value)[0], value[1]) : fn(value);
  } catch (error) {
    iteratorClose$1$1(iterator, 'throw', error);
  }
};

var wellKnownSymbol$7$1 = wellKnownSymbol$m;
var Iterators$1$1 = iterators$1;

var ITERATOR$2$1 = wellKnownSymbol$7$1('iterator');
var ArrayPrototype$a$1 = Array.prototype;

// check on default Array iterator
var isArrayIteratorMethod$2$1 = function (it) {
  return it !== undefined && (Iterators$1$1.Array === it || ArrayPrototype$a$1[ITERATOR$2$1] === it);
};

var classof$5$1 = classof$d$1;
var getMethod$4 = getMethod$3$1;
var isNullOrUndefined$2$1 = isNullOrUndefined$5$1;
var Iterators$6 = iterators$1;
var wellKnownSymbol$6$1 = wellKnownSymbol$m;

var ITERATOR$1$1 = wellKnownSymbol$6$1('iterator');

var getIteratorMethod$9$1 = function (it) {
  if (!isNullOrUndefined$2$1(it)) return getMethod$4(it, ITERATOR$1$1)
    || getMethod$4(it, '@@iterator')
    || Iterators$6[classof$5$1(it)];
};

var call$9$1 = functionCall$1;
var aCallable$7$1 = aCallable$e;
var anObject$5$1 = anObject$d$1;
var tryToString$3$1 = tryToString$6$1;
var getIteratorMethod$8$1 = getIteratorMethod$9$1;

var $TypeError$7$1 = TypeError;

var getIterator$8 = function (argument, usingIterator) {
  var iteratorMethod = arguments.length < 2 ? getIteratorMethod$8$1(argument) : usingIterator;
  if (aCallable$7$1(iteratorMethod)) return anObject$5$1(call$9$1(iteratorMethod, argument));
  throw $TypeError$7$1(tryToString$3$1(argument) + ' is not iterable');
};

var bind$a$1 = functionBindContext$1;
var call$8$1 = functionCall$1;
var toObject$5$1 = toObject$d$1;
var callWithSafeIterationClosing$2 = callWithSafeIterationClosing$1$1;
var isArrayIteratorMethod$1$1 = isArrayIteratorMethod$2$1;
var isConstructor$2$1 = isConstructor$4$1;
var lengthOfArrayLike$4$1 = lengthOfArrayLike$c;
var createProperty$3$1 = createProperty$6$1;
var getIterator$7 = getIterator$8;
var getIteratorMethod$7$1 = getIteratorMethod$9$1;

var $Array$1$1 = Array;

// `Array.from` method implementation
// https://tc39.es/ecma262/#sec-array.from
var arrayFrom$1 = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
  var O = toObject$5$1(arrayLike);
  var IS_CONSTRUCTOR = isConstructor$2$1(this);
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  if (mapping) mapfn = bind$a$1(mapfn, argumentsLength > 2 ? arguments[2] : undefined);
  var iteratorMethod = getIteratorMethod$7$1(O);
  var index = 0;
  var length, result, step, iterator, next, value;
  // if the target is not iterable or it's an array with the default iterator - use a simple case
  if (iteratorMethod && !(this === $Array$1$1 && isArrayIteratorMethod$1$1(iteratorMethod))) {
    iterator = getIterator$7(O, iteratorMethod);
    next = iterator.next;
    result = IS_CONSTRUCTOR ? new this() : [];
    for (;!(step = call$8$1(next, iterator)).done; index++) {
      value = mapping ? callWithSafeIterationClosing$2(iterator, mapfn, [step.value, index], true) : step.value;
      createProperty$3$1(result, index, value);
    }
  } else {
    length = lengthOfArrayLike$4$1(O);
    result = IS_CONSTRUCTOR ? new this(length) : $Array$1$1(length);
    for (;length > index; index++) {
      value = mapping ? mapfn(O[index], index) : O[index];
      createProperty$3$1(result, index, value);
    }
  }
  result.length = index;
  return result;
};

var wellKnownSymbol$5$1 = wellKnownSymbol$m;

var ITERATOR$7 = wellKnownSymbol$5$1('iterator');
var SAFE_CLOSING$1 = false;

try {
  var called$1 = 0;
  var iteratorWithReturn$1 = {
    next: function () {
      return { done: !!called$1++ };
    },
    'return': function () {
      SAFE_CLOSING$1 = true;
    }
  };
  iteratorWithReturn$1[ITERATOR$7] = function () {
    return this;
  };
  // eslint-disable-next-line es/no-array-from, no-throw-literal -- required for testing
  Array.from(iteratorWithReturn$1, function () { throw 2; });
} catch (error) { /* empty */ }

var $$w$1 = _export$1;
var from$7$1 = arrayFrom$1;
var checkCorrectnessOfIteration$1$1 = checkCorrectnessOfIteration$2;

var INCORRECT_ITERATION$1 = !checkCorrectnessOfIteration$1$1(function (iterable) {
  // eslint-disable-next-line es/no-array-from -- required for testing
  Array.from(iterable);
});

// `Array.from` method
// https://tc39.es/ecma262/#sec-array.from
$$w$1({ target: 'Array', stat: true, forced: INCORRECT_ITERATION$1 }, {
  from: from$7$1
});

var path$h$1 = path$o$1;

var from$6$1 = path$h$1.Array.from;

var parent$Q$1 = from$6$1;

var from$5$1 = parent$Q$1;

var from$4$1 = from$5$1;

var _Array$from$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(from$4$1);

var getIteratorMethod$6$1 = getIteratorMethod$9$1;

var getIteratorMethod_1$1 = getIteratorMethod$6$1;

var parent$P$1 = getIteratorMethod_1$1;

var getIteratorMethod$5$1 = parent$P$1;

var parent$O$1 = getIteratorMethod$5$1;

var getIteratorMethod$4$1 = parent$O$1;

var parent$N$1 = getIteratorMethod$4$1;

var getIteratorMethod$3$1 = parent$N$1;

var getIteratorMethod$2$1 = getIteratorMethod$3$1;

var getIteratorMethod$1$1 = getIteratorMethod$2$1;

var _getIteratorMethod$1 = /*@__PURE__*/getDefaultExportFromCjs$2(getIteratorMethod$1$1);

var path$g$1 = path$o$1;

var getOwnPropertySymbols$2$1 = path$g$1.Object.getOwnPropertySymbols;

var parent$M$1 = getOwnPropertySymbols$2$1;

var getOwnPropertySymbols$1$1 = parent$M$1;

var getOwnPropertySymbols$3 = getOwnPropertySymbols$1$1;

var _Object$getOwnPropertySymbols$1 = /*@__PURE__*/getDefaultExportFromCjs$2(getOwnPropertySymbols$3);

var getOwnPropertyDescriptor$5$1 = {exports: {}};

var $$v$1 = _export$1;
var fails$c$1 = fails$t$1;
var toIndexedObject$2$1 = toIndexedObject$a$1;
var nativeGetOwnPropertyDescriptor$2 = objectGetOwnPropertyDescriptor$1.f;
var DESCRIPTORS$8$1 = descriptors$1;

var FORCED$2$1 = !DESCRIPTORS$8$1 || fails$c$1(function () { nativeGetOwnPropertyDescriptor$2(1); });

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
$$v$1({ target: 'Object', stat: true, forced: FORCED$2$1, sham: !DESCRIPTORS$8$1 }, {
  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
    return nativeGetOwnPropertyDescriptor$2(toIndexedObject$2$1(it), key);
  }
});

var path$f$1 = path$o$1;

var Object$3$1 = path$f$1.Object;

var getOwnPropertyDescriptor$4$1 = getOwnPropertyDescriptor$5$1.exports = function getOwnPropertyDescriptor(it, key) {
  return Object$3$1.getOwnPropertyDescriptor(it, key);
};

if (Object$3$1.getOwnPropertyDescriptor.sham) getOwnPropertyDescriptor$4$1.sham = true;

var getOwnPropertyDescriptorExports$4 = getOwnPropertyDescriptor$5$1.exports;

var parent$L$1 = getOwnPropertyDescriptorExports$4;

var getOwnPropertyDescriptor$3$1 = parent$L$1;

var getOwnPropertyDescriptor$2$1 = getOwnPropertyDescriptor$3$1;

var _Object$getOwnPropertyDescriptor$2 = /*@__PURE__*/getDefaultExportFromCjs$2(getOwnPropertyDescriptor$2$1);

var getBuiltIn$5$1 = getBuiltIn$f;
var uncurryThis$5$1 = functionUncurryThis$1;
var getOwnPropertyNamesModule$1$1 = objectGetOwnPropertyNames$1;
var getOwnPropertySymbolsModule$1$1 = objectGetOwnPropertySymbols$1;
var anObject$4$1 = anObject$d$1;

var concat$5$1 = uncurryThis$5$1([].concat);

// all object keys, includes non-enumerable and symbols
var ownKeys$7$1 = getBuiltIn$5$1('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = getOwnPropertyNamesModule$1$1.f(anObject$4$1(it));
  var getOwnPropertySymbols = getOwnPropertySymbolsModule$1$1.f;
  return getOwnPropertySymbols ? concat$5$1(keys, getOwnPropertySymbols(it)) : keys;
};

var $$u$1 = _export$1;
var DESCRIPTORS$7$1 = descriptors$1;
var ownKeys$6$1 = ownKeys$7$1;
var toIndexedObject$1$1 = toIndexedObject$a$1;
var getOwnPropertyDescriptorModule$1$1 = objectGetOwnPropertyDescriptor$1;
var createProperty$2$1 = createProperty$6$1;

// `Object.getOwnPropertyDescriptors` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
$$u$1({ target: 'Object', stat: true, sham: !DESCRIPTORS$7$1 }, {
  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
    var O = toIndexedObject$1$1(object);
    var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule$1$1.f;
    var keys = ownKeys$6$1(O);
    var result = {};
    var index = 0;
    var key, descriptor;
    while (keys.length > index) {
      descriptor = getOwnPropertyDescriptor(O, key = keys[index++]);
      if (descriptor !== undefined) createProperty$2$1(result, key, descriptor);
    }
    return result;
  }
});

var path$e$1 = path$o$1;

var getOwnPropertyDescriptors$2$1 = path$e$1.Object.getOwnPropertyDescriptors;

var parent$K$1 = getOwnPropertyDescriptors$2$1;

var getOwnPropertyDescriptors$1$1 = parent$K$1;

var getOwnPropertyDescriptors$3 = getOwnPropertyDescriptors$1$1;

var _Object$getOwnPropertyDescriptors$1 = /*@__PURE__*/getDefaultExportFromCjs$2(getOwnPropertyDescriptors$3);

var defineProperties$4$1 = {exports: {}};

var $$t$1 = _export$1;
var DESCRIPTORS$6$1 = descriptors$1;
var defineProperties$3$1 = objectDefineProperties$1.f;

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
$$t$1({ target: 'Object', stat: true, forced: Object.defineProperties !== defineProperties$3$1, sham: !DESCRIPTORS$6$1 }, {
  defineProperties: defineProperties$3$1
});

var path$d$1 = path$o$1;

var Object$2$1 = path$d$1.Object;

var defineProperties$2$1 = defineProperties$4$1.exports = function defineProperties(T, D) {
  return Object$2$1.defineProperties(T, D);
};

if (Object$2$1.defineProperties.sham) defineProperties$2$1.sham = true;

var definePropertiesExports$2 = defineProperties$4$1.exports;

var parent$J$1 = definePropertiesExports$2;

var defineProperties$1$1 = parent$J$1;

var defineProperties$5 = defineProperties$1$1;

var _Object$defineProperties$1 = /*@__PURE__*/getDefaultExportFromCjs$2(defineProperties$5);

var defineProperty$3$1 = defineProperty$b$1;

var _Object$defineProperty$2 = /*@__PURE__*/getDefaultExportFromCjs$2(defineProperty$3$1);

var $$s$1 = _export$1;
var isArray$a$1 = isArray$f$1;

// `Array.isArray` method
// https://tc39.es/ecma262/#sec-array.isarray
$$s$1({ target: 'Array', stat: true }, {
  isArray: isArray$a$1
});

var path$c$1 = path$o$1;

var isArray$9$1 = path$c$1.Array.isArray;

var parent$I$1 = isArray$9$1;

var isArray$8$1 = parent$I$1;

var parent$H$1 = isArray$8$1;

var isArray$7$1 = parent$H$1;

var parent$G$1 = isArray$7$1;

var isArray$6$1 = parent$G$1;

var isArray$5$1 = isArray$6$1;

var isArray$4$1 = isArray$5$1;

var _Array$isArray$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(isArray$4$1);

function _arrayWithHoles$1(arr) {
  if (_Array$isArray$1$1(arr)) return arr;
}

var $$r$1 = _export$1;
var isArray$3$1 = isArray$f$1;
var isConstructor$1$1 = isConstructor$4$1;
var isObject$7$1 = isObject$h$1;
var toAbsoluteIndex$1$1 = toAbsoluteIndex$4$1;
var lengthOfArrayLike$3$1 = lengthOfArrayLike$c;
var toIndexedObject$c = toIndexedObject$a$1;
var createProperty$1$1 = createProperty$6$1;
var wellKnownSymbol$4$1 = wellKnownSymbol$m;
var arrayMethodHasSpeciesSupport$1$1 = arrayMethodHasSpeciesSupport$5$1;
var nativeSlice$2 = arraySlice$5$1;

var HAS_SPECIES_SUPPORT$1$1 = arrayMethodHasSpeciesSupport$1$1('slice');

var SPECIES$3$1 = wellKnownSymbol$4$1('species');
var $Array$4 = Array;
var max$1$2 = Math.max;

// `Array.prototype.slice` method
// https://tc39.es/ecma262/#sec-array.prototype.slice
// fallback for not array-like ES3 strings and DOM objects
$$r$1({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$1$1 }, {
  slice: function slice(start, end) {
    var O = toIndexedObject$c(this);
    var length = lengthOfArrayLike$3$1(O);
    var k = toAbsoluteIndex$1$1(start, length);
    var fin = toAbsoluteIndex$1$1(end === undefined ? length : end, length);
    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
    var Constructor, result, n;
    if (isArray$3$1(O)) {
      Constructor = O.constructor;
      // cross-realm fallback
      if (isConstructor$1$1(Constructor) && (Constructor === $Array$4 || isArray$3$1(Constructor.prototype))) {
        Constructor = undefined;
      } else if (isObject$7$1(Constructor)) {
        Constructor = Constructor[SPECIES$3$1];
        if (Constructor === null) Constructor = undefined;
      }
      if (Constructor === $Array$4 || Constructor === undefined) {
        return nativeSlice$2(O, k, fin);
      }
    }
    result = new (Constructor === undefined ? $Array$4 : Constructor)(max$1$2(fin - k, 0));
    for (n = 0; k < fin; k++, n++) if (k in O) createProperty$1$1(result, n, O[k]);
    result.length = n;
    return result;
  }
});

var entryVirtual$9$1 = entryVirtual$f$1;

var slice$7$1 = entryVirtual$9$1('Array').slice;

var isPrototypeOf$c$1 = objectIsPrototypeOf$1;
var method$9$1 = slice$7$1;

var ArrayPrototype$9$1 = Array.prototype;

var slice$6$1 = function (it) {
  var own = it.slice;
  return it === ArrayPrototype$9$1 || (isPrototypeOf$c$1(ArrayPrototype$9$1, it) && own === ArrayPrototype$9$1.slice) ? method$9$1 : own;
};

var parent$F$1 = slice$6$1;

var slice$5$1 = parent$F$1;

var parent$E$1 = slice$5$1;

var slice$4$1 = parent$E$1;

var parent$D$1 = slice$4$1;

var slice$3$1 = parent$D$1;

var slice$2$1 = slice$3$1;

var slice$1$1 = slice$2$1;

var _sliceInstanceProperty$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(slice$1$1);

var parent$C$1 = from$5$1;

var from$3$1 = parent$C$1;

var parent$B$1 = from$3$1;

var from$2$1 = parent$B$1;

var from$1$1 = from$2$1;

var from$8 = from$1$1;

var _Array$from$2 = /*@__PURE__*/getDefaultExportFromCjs$2(from$8);

function _arrayLikeToArray$4$1(arr, len) {
  if (len == null || len > arr.length) len = arr.length;
  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
  return arr2;
}

function _unsupportedIterableToArray$4$1(o, minLen) {
  var _context;
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray$4$1(o, minLen);
  var n = _sliceInstanceProperty$1$1(_context = Object.prototype.toString.call(o)).call(_context, 8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return _Array$from$2(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$4$1(o, minLen);
}

function _nonIterableRest$1() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

function _slicedToArray$1(arr, i) {
  return _arrayWithHoles$1(arr) || _iterableToArrayLimit$1(arr, i) || _unsupportedIterableToArray$4$1(arr, i) || _nonIterableRest$1();
}

function _arrayWithoutHoles$1(arr) {
  if (_Array$isArray$1$1(arr)) return _arrayLikeToArray$4$1(arr);
}

function _iterableToArray$1(iter) {
  if (typeof _Symbol$1$1 !== "undefined" && _getIteratorMethod$1(iter) != null || iter["@@iterator"] != null) return _Array$from$2(iter);
}

function _nonIterableSpread$1() {
  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

function _toConsumableArray$1(arr) {
  return _arrayWithoutHoles$1(arr) || _iterableToArray$1(arr) || _unsupportedIterableToArray$4$1(arr) || _nonIterableSpread$1();
}

var symbol$7 = symbol$5$1;

var _Symbol$2 = /*@__PURE__*/getDefaultExportFromCjs$2(symbol$7);

var entryVirtual$8$1 = entryVirtual$f$1;

var concat$4$1 = entryVirtual$8$1('Array').concat;

var isPrototypeOf$b$1 = objectIsPrototypeOf$1;
var method$8$1 = concat$4$1;

var ArrayPrototype$8$1 = Array.prototype;

var concat$3$1 = function (it) {
  var own = it.concat;
  return it === ArrayPrototype$8$1 || (isPrototypeOf$b$1(ArrayPrototype$8$1, it) && own === ArrayPrototype$8$1.concat) ? method$8$1 : own;
};

var parent$A$1 = concat$3$1;

var concat$2$1 = parent$A$1;

var concat$1$1 = concat$2$1;

var _concatInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(concat$1$1);

var slice$9 = slice$5$1;

var _sliceInstanceProperty$2 = /*@__PURE__*/getDefaultExportFromCjs$2(slice$9);

var $$q$1 = _export$1;
var ownKeys$5$1 = ownKeys$7$1;

// `Reflect.ownKeys` method
// https://tc39.es/ecma262/#sec-reflect.ownkeys
$$q$1({ target: 'Reflect', stat: true }, {
  ownKeys: ownKeys$5$1
});

var path$b$1 = path$o$1;

var ownKeys$4$1 = path$b$1.Reflect.ownKeys;

var parent$z$1 = ownKeys$4$1;

var ownKeys$3$1 = parent$z$1;

var ownKeys$2$1 = ownKeys$3$1;

var _Reflect$ownKeys = /*@__PURE__*/getDefaultExportFromCjs$2(ownKeys$2$1);

var isArray$2$1 = isArray$8$1;

var _Array$isArray$2 = /*@__PURE__*/getDefaultExportFromCjs$2(isArray$2$1);

var $$p$1 = _export$1;
var toObject$4$1 = toObject$d$1;
var nativeKeys$1 = objectKeys$3$1;
var fails$b$1 = fails$t$1;

var FAILS_ON_PRIMITIVES$2$1 = fails$b$1(function () { nativeKeys$1(1); });

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
$$p$1({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$2$1 }, {
  keys: function keys(it) {
    return nativeKeys$1(toObject$4$1(it));
  }
});

var path$a$1 = path$o$1;

var keys$6 = path$a$1.Object.keys;

var parent$y$1 = keys$6;

var keys$5 = parent$y$1;

var keys$4$1 = keys$5;

var _Object$keys$1 = /*@__PURE__*/getDefaultExportFromCjs$2(keys$4$1);

var $forEach$2 = arrayIteration$1.forEach;
var arrayMethodIsStrict$2$1 = arrayMethodIsStrict$4$1;

var STRICT_METHOD$2$1 = arrayMethodIsStrict$2$1('forEach');

// `Array.prototype.forEach` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.foreach
var arrayForEach$1 = !STRICT_METHOD$2$1 ? function forEach(callbackfn /* , thisArg */) {
  return $forEach$2(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
} : [].forEach;

var $$o$1 = _export$1;
var forEach$9 = arrayForEach$1;

// `Array.prototype.forEach` method
// https://tc39.es/ecma262/#sec-array.prototype.foreach
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
$$o$1({ target: 'Array', proto: true, forced: [].forEach != forEach$9 }, {
  forEach: forEach$9
});

var entryVirtual$7$1 = entryVirtual$f$1;

var forEach$8 = entryVirtual$7$1('Array').forEach;

var parent$x$1 = forEach$8;

var forEach$7 = parent$x$1;

var classof$4$1 = classof$d$1;
var hasOwn$6$1 = hasOwnProperty_1$1;
var isPrototypeOf$a$1 = objectIsPrototypeOf$1;
var method$7$1 = forEach$7;

var ArrayPrototype$7$1 = Array.prototype;

var DOMIterables$3 = {
  DOMTokenList: true,
  NodeList: true
};

var forEach$6$1 = function (it) {
  var own = it.forEach;
  return it === ArrayPrototype$7$1 || (isPrototypeOf$a$1(ArrayPrototype$7$1, it) && own === ArrayPrototype$7$1.forEach)
    || hasOwn$6$1(DOMIterables$3, classof$4$1(it)) ? method$7$1 : own;
};

var forEach$5$1 = forEach$6$1;

var _forEachInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(forEach$5$1);

var $$n$1 = _export$1;
var uncurryThis$4$1 = functionUncurryThis$1;
var isArray$1$1 = isArray$f$1;

var nativeReverse$1 = uncurryThis$4$1([].reverse);
var test$1$1 = [1, 2];

// `Array.prototype.reverse` method
// https://tc39.es/ecma262/#sec-array.prototype.reverse
// fix for Safari 12.0 bug
// https://bugs.webkit.org/show_bug.cgi?id=188794
$$n$1({ target: 'Array', proto: true, forced: String(test$1$1) === String(test$1$1.reverse()) }, {
  reverse: function reverse() {
    // eslint-disable-next-line no-self-assign -- dirty hack
    if (isArray$1$1(this)) this.length = this.length;
    return nativeReverse$1(this);
  }
});

var entryVirtual$6$1 = entryVirtual$f$1;

var reverse$7 = entryVirtual$6$1('Array').reverse;

var isPrototypeOf$9$1 = objectIsPrototypeOf$1;
var method$6$1 = reverse$7;

var ArrayPrototype$6$1 = Array.prototype;

var reverse$6 = function (it) {
  var own = it.reverse;
  return it === ArrayPrototype$6$1 || (isPrototypeOf$9$1(ArrayPrototype$6$1, it) && own === ArrayPrototype$6$1.reverse) ? method$6$1 : own;
};

var parent$w$1 = reverse$6;

var reverse$5 = parent$w$1;

var reverse$4 = reverse$5;

var _reverseInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(reverse$4);

var DESCRIPTORS$5$1 = descriptors$1;
var isArray$h = isArray$f$1;

var $TypeError$6$1 = TypeError;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor$1$1 = Object.getOwnPropertyDescriptor;

// Safari < 13 does not throw an error in this case
var SILENT_ON_NON_WRITABLE_LENGTH_SET$1 = DESCRIPTORS$5$1 && !function () {
  // makes no sense without proper strict mode support
  if (this !== undefined) return true;
  try {
    // eslint-disable-next-line es/no-object-defineproperty -- safe
    Object.defineProperty([], 'length', { writable: false }).length = 1;
  } catch (error) {
    return error instanceof TypeError;
  }
}();

var tryToString$2$1 = tryToString$6$1;

var $TypeError$5$1 = TypeError;

var deletePropertyOrThrow$2$1 = function (O, P) {
  if (!delete O[P]) throw $TypeError$5$1('Cannot delete property ' + tryToString$2$1(P) + ' of ' + tryToString$2$1(O));
};

var $$m$1 = _export$1;
var toObject$3$1 = toObject$d$1;
var toAbsoluteIndex$6 = toAbsoluteIndex$4$1;
var toIntegerOrInfinity$5 = toIntegerOrInfinity$4$1;
var lengthOfArrayLike$2$1 = lengthOfArrayLike$c;
var setArrayLength$1 = arraySetLength$1;
var doesNotExceedSafeInteger$4 = doesNotExceedSafeInteger$3;
var arraySpeciesCreate$5 = arraySpeciesCreate$4;
var createProperty$7 = createProperty$6$1;
var deletePropertyOrThrow$1$1 = deletePropertyOrThrow$2$1;
var arrayMethodHasSpeciesSupport$6 = arrayMethodHasSpeciesSupport$5$1;

var HAS_SPECIES_SUPPORT$4 = arrayMethodHasSpeciesSupport$6('splice');

var max$5 = Math.max;
var min$4 = Math.min;

// `Array.prototype.splice` method
// https://tc39.es/ecma262/#sec-array.prototype.splice
// with adding support of @@species
$$m$1({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$4 }, {
  splice: function splice(start, deleteCount /* , ...items */) {
    var O = toObject$3$1(this);
    var len = lengthOfArrayLike$2$1(O);
    var actualStart = toAbsoluteIndex$6(start, len);
    var argumentsLength = arguments.length;
    var insertCount, actualDeleteCount, A, k, from, to;
    if (argumentsLength === 0) {
      insertCount = actualDeleteCount = 0;
    } else if (argumentsLength === 1) {
      insertCount = 0;
      actualDeleteCount = len - actualStart;
    } else {
      insertCount = argumentsLength - 2;
      actualDeleteCount = min$4(max$5(toIntegerOrInfinity$5(deleteCount), 0), len - actualStart);
    }
    doesNotExceedSafeInteger$4(len + insertCount - actualDeleteCount);
    A = arraySpeciesCreate$5(O, actualDeleteCount);
    for (k = 0; k < actualDeleteCount; k++) {
      from = actualStart + k;
      if (from in O) createProperty$7(A, k, O[from]);
    }
    A.length = actualDeleteCount;
    if (insertCount < actualDeleteCount) {
      for (k = actualStart; k < len - actualDeleteCount; k++) {
        from = k + actualDeleteCount;
        to = k + insertCount;
        if (from in O) O[to] = O[from];
        else deletePropertyOrThrow$1$1(O, to);
      }
      for (k = len; k > len - actualDeleteCount + insertCount; k--) deletePropertyOrThrow$1$1(O, k - 1);
    } else if (insertCount > actualDeleteCount) {
      for (k = len - actualDeleteCount; k > actualStart; k--) {
        from = k + actualDeleteCount - 1;
        to = k + insertCount - 1;
        if (from in O) O[to] = O[from];
        else deletePropertyOrThrow$1$1(O, to);
      }
    }
    for (k = 0; k < insertCount; k++) {
      O[k + actualStart] = arguments[k + 2];
    }
    setArrayLength$1(O, len - actualDeleteCount + insertCount);
    return A;
  }
});

var entryVirtual$5$1 = entryVirtual$f$1;

var splice$3$1 = entryVirtual$5$1('Array').splice;

var isPrototypeOf$8$1 = objectIsPrototypeOf$1;
var method$5$1 = splice$3$1;

var ArrayPrototype$5$1 = Array.prototype;

var splice$2$1 = function (it) {
  var own = it.splice;
  return it === ArrayPrototype$5$1 || (isPrototypeOf$8$1(ArrayPrototype$5$1, it) && own === ArrayPrototype$5$1.splice) ? method$5$1 : own;
};

var parent$v$1 = splice$2$1;

var splice$1$1 = parent$v$1;

var splice$5 = splice$1$1;

var _spliceInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(splice$5);

var DESCRIPTORS$4$1 = descriptors$1;
var uncurryThis$3$1 = functionUncurryThis$1;
var call$7$1 = functionCall$1;
var fails$a$1 = fails$t$1;
var objectKeys$5 = objectKeys$3$1;
var getOwnPropertySymbolsModule$4 = objectGetOwnPropertySymbols$1;
var propertyIsEnumerableModule$3 = objectPropertyIsEnumerable$1;
var toObject$2$1 = toObject$d$1;
var IndexedObject$4 = indexedObject$1;

// eslint-disable-next-line es/no-object-assign -- safe
var $assign$1 = Object.assign;
// eslint-disable-next-line es/no-object-defineproperty -- required for testing
var defineProperty$2$1 = Object.defineProperty;
var concat$7 = uncurryThis$3$1([].concat);

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
var objectAssign$1 = !$assign$1 || fails$a$1(function () {
  // should have correct order of operations (Edge bug)
  if (DESCRIPTORS$4$1 && $assign$1({ b: 1 }, $assign$1(defineProperty$2$1({}, 'a', {
    enumerable: true,
    get: function () {
      defineProperty$2$1(this, 'b', {
        value: 3,
        enumerable: false
      });
    }
  }), { b: 2 })).b !== 1) return true;
  // should work with symbols and should have deterministic property order (V8 bug)
  var A = {};
  var B = {};
  // eslint-disable-next-line es/no-symbol -- safe
  var symbol = Symbol();
  var alphabet = 'abcdefghijklmnopqrst';
  A[symbol] = 7;
  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
  return $assign$1({}, A)[symbol] != 7 || objectKeys$5($assign$1({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
  var T = toObject$2$1(target);
  var argumentsLength = arguments.length;
  var index = 1;
  var getOwnPropertySymbols = getOwnPropertySymbolsModule$4.f;
  var propertyIsEnumerable = propertyIsEnumerableModule$3.f;
  while (argumentsLength > index) {
    var S = IndexedObject$4(arguments[index++]);
    var keys = getOwnPropertySymbols ? concat$7(objectKeys$5(S), getOwnPropertySymbols(S)) : objectKeys$5(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS$4$1 || call$7$1(propertyIsEnumerable, S, key)) T[key] = S[key];
    }
  } return T;
} : $assign$1;

var $$l$1 = _export$1;
var assign$5$1 = objectAssign$1;

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
// eslint-disable-next-line es/no-object-assign -- required for testing
$$l$1({ target: 'Object', stat: true, arity: 2, forced: Object.assign !== assign$5$1 }, {
  assign: assign$5$1
});

var path$9$1 = path$o$1;

var assign$4$1 = path$9$1.Object.assign;

var parent$u$1 = assign$4$1;

var assign$3$1 = parent$u$1;

var assign$2$1 = assign$3$1;

var _Object$assign$1 = /*@__PURE__*/getDefaultExportFromCjs$2(assign$2$1);

var $$k$1 = _export$1;
var fails$9$1 = fails$t$1;
var toObject$1$1 = toObject$d$1;
var nativeGetPrototypeOf$1 = objectGetPrototypeOf$1;
var CORRECT_PROTOTYPE_GETTER$2 = correctPrototypeGetter$1;

var FAILS_ON_PRIMITIVES$1$1 = fails$9$1(function () { nativeGetPrototypeOf$1(1); });

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
$$k$1({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$1$1, sham: !CORRECT_PROTOTYPE_GETTER$2 }, {
  getPrototypeOf: function getPrototypeOf(it) {
    return nativeGetPrototypeOf$1(toObject$1$1(it));
  }
});

var path$8$1 = path$o$1;

var getPrototypeOf$6$1 = path$8$1.Object.getPrototypeOf;

var parent$t$1 = getPrototypeOf$6$1;

var getPrototypeOf$5$1 = parent$t$1;

// TODO: Remove from `core-js@4`
var $$j$1 = _export$1;
var DESCRIPTORS$3$1 = descriptors$1;
var create$a$1 = objectCreate$1;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
$$j$1({ target: 'Object', stat: true, sham: !DESCRIPTORS$3$1 }, {
  create: create$a$1
});

var path$7$1 = path$o$1;

var Object$1$1 = path$7$1.Object;

var create$9$1 = function create(P, D) {
  return Object$1$1.create(P, D);
};

var parent$s$1 = create$9$1;

var create$8$1 = parent$s$1;

var create$7$1 = create$8$1;

var _Object$create$1$1 = /*@__PURE__*/getDefaultExportFromCjs$2(create$7$1);

var path$6$1 = path$o$1;
var apply$3$1 = functionApply$1;

// eslint-disable-next-line es/no-json -- safe
if (!path$6$1.JSON) path$6$1.JSON = { stringify: JSON.stringify };

// eslint-disable-next-line no-unused-vars -- required for `.length`
var stringify$2$1 = function stringify(it, replacer, space) {
  return apply$3$1(path$6$1.JSON.stringify, null, arguments);
};

var parent$r$1 = stringify$2$1;

var stringify$1$1 = parent$r$1;

var stringify$4 = stringify$1$1;

var _JSON$stringify$1 = /*@__PURE__*/getDefaultExportFromCjs$2(stringify$4);

/* global Bun -- Deno case */

var engineIsBun$1 = typeof Bun == 'function' && Bun && typeof Bun.version == 'string';

var $TypeError$4$1 = TypeError;

var validateArgumentsLength$2 = function (passed, required) {
  if (passed < required) throw $TypeError$4$1('Not enough arguments');
  return passed;
};

var global$9$1 = global$m;
var apply$2$1 = functionApply$1;
var isCallable$5$1 = isCallable$m;
var ENGINE_IS_BUN$1 = engineIsBun$1;
var USER_AGENT$1 = engineUserAgent$1;
var arraySlice$2$1 = arraySlice$5$1;
var validateArgumentsLength$1$1 = validateArgumentsLength$2;

var Function$2 = global$9$1.Function;
// dirty IE9- and Bun 0.3.0- checks
var WRAP$1 = /MSIE .\./.test(USER_AGENT$1) || ENGINE_IS_BUN$1 && (function () {
  var version = global$9$1.Bun.version.split('.');
  return version.length < 3 || version[0] == 0 && (version[1] < 3 || version[1] == 3 && version[2] == 0);
})();

// IE9- / Bun 0.3.0- setTimeout / setInterval / setImmediate additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
// https://github.com/oven-sh/bun/issues/1633
var schedulersFix$2$1 = function (scheduler, hasTimeArg) {
  var firstParamIndex = hasTimeArg ? 2 : 1;
  return WRAP$1 ? function (handler, timeout /* , ...arguments */) {
    var boundArgs = validateArgumentsLength$1$1(arguments.length, 1) > firstParamIndex;
    var fn = isCallable$5$1(handler) ? handler : Function$2(handler);
    var params = boundArgs ? arraySlice$2$1(arguments, firstParamIndex) : [];
    var callback = boundArgs ? function () {
      apply$2$1(fn, this, params);
    } : fn;
    return hasTimeArg ? scheduler(callback, timeout) : scheduler(callback);
  } : scheduler;
};

var $$i$1 = _export$1;
var global$8$1 = global$m;
var schedulersFix$1$1 = schedulersFix$2$1;

var setInterval$4 = schedulersFix$1$1(global$8$1.setInterval, true);

// Bun / IE9- setInterval additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
$$i$1({ global: true, bind: true, forced: global$8$1.setInterval !== setInterval$4 }, {
  setInterval: setInterval$4
});

var $$h$1 = _export$1;
var global$7$1 = global$m;
var schedulersFix$3 = schedulersFix$2$1;

var setTimeout$3$1 = schedulersFix$3(global$7$1.setTimeout, true);

// Bun / IE9- setTimeout additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
$$h$1({ global: true, bind: true, forced: global$7$1.setTimeout !== setTimeout$3$1 }, {
  setTimeout: setTimeout$3$1
});

var path$5$1 = path$o$1;

var setTimeout$2$1 = path$5$1.setTimeout;

var setTimeout$1$1 = setTimeout$2$1;

var _setTimeout$1 = /*@__PURE__*/getDefaultExportFromCjs$2(setTimeout$1$1);

var componentEmitter$1 = {exports: {}};

(function (module) {
	/**
	 * Expose `Emitter`.
	 */

{
	  module.exports = Emitter;
	}

/**
	 * Initialize a new `Emitter`.
	 *
	 * @api public
	 */

function Emitter(obj) {
	  if (obj) return mixin(obj);
	}
	/**
	 * Mixin the emitter properties.
	 *
	 * @param {Object} obj
	 * @return {Object}
	 * @api private
	 */

function mixin(obj) {
	  for (var key in Emitter.prototype) {
	    obj[key] = Emitter.prototype[key];
	  }
	  return obj;
	}

/**
	 * Listen on the given `event` with `fn`.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

Emitter.prototype.on =
	Emitter.prototype.addEventListener = function(event, fn){
	  this._callbacks = this._callbacks || {};
	  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
	    .push(fn);
	  return this;
	};

/**
	 * Adds an `event` listener that will be invoked a single
	 * time then automatically removed.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

Emitter.prototype.once = function(event, fn){
	  function on() {
	    this.off(event, on);
	    fn.apply(this, arguments);
	  }

on.fn = fn;
	  this.on(event, on);
	  return this;
	};

/**
	 * Remove the given callback for `event` or all
	 * registered callbacks.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

Emitter.prototype.off =
	Emitter.prototype.removeListener =
	Emitter.prototype.removeAllListeners =
	Emitter.prototype.removeEventListener = function(event, fn){
	  this._callbacks = this._callbacks || {};

// all
	  if (0 == arguments.length) {
	    this._callbacks = {};
	    return this;
	  }

// specific event
	  var callbacks = this._callbacks['$' + event];
	  if (!callbacks) return this;

// remove all handlers
	  if (1 == arguments.length) {
	    delete this._callbacks['$' + event];
	    return this;
	  }

// remove specific handler
	  var cb;
	  for (var i = 0; i < callbacks.length; i++) {
	    cb = callbacks[i];
	    if (cb === fn || cb.fn === fn) {
	      callbacks.splice(i, 1);
	      break;
	    }
	  }

// Remove event specific arrays for event types that no
	  // one is subscribed for to avoid memory leak.
	  if (callbacks.length === 0) {
	    delete this._callbacks['$' + event];
	  }

return this;
	};

/**
	 * Emit `event` with the given args.
	 *
	 * @param {String} event
	 * @param {Mixed} ...
	 * @return {Emitter}
	 */

Emitter.prototype.emit = function(event){
	  this._callbacks = this._callbacks || {};

var args = new Array(arguments.length - 1)
	    , callbacks = this._callbacks['$' + event];

for (var i = 1; i < arguments.length; i++) {
	    args[i - 1] = arguments[i];
	  }

if (callbacks) {
	    callbacks = callbacks.slice(0);
	    for (var i = 0, len = callbacks.length; i < len; ++i) {
	      callbacks[i].apply(this, args);
	    }
	  }

return this;
	};

/**
	 * Return array of callbacks for `event`.
	 *
	 * @param {String} event
	 * @return {Array}
	 * @api public
	 */

Emitter.prototype.listeners = function(event){
	  this._callbacks = this._callbacks || {};
	  return this._callbacks['$' + event] || [];
	};

/**
	 * Check if this emitter has `event` handlers.
	 *
	 * @param {String} event
	 * @return {Boolean}
	 * @api public
	 */

Emitter.prototype.hasListeners = function(event){
	  return !! this.listeners(event).length;
	}; 
} (componentEmitter$1));

var componentEmitterExports$1 = componentEmitter$1.exports;
var Emitter$1 = /*@__PURE__*/getDefaultExportFromCjs$2(componentEmitterExports$1);

/*! Hammer.JS - v2.0.17-rc - 2019-12-16
 * http://naver.github.io/egjs
 *
 * Forked By Naver egjs
 * Copyright (c) hammerjs
 * Licensed under the MIT license */
function _extends$1() {
  _extends$1 = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

return target;
  };

return _extends$1.apply(this, arguments);
}

function _inheritsLoose$1(subClass, superClass) {
  subClass.prototype = Object.create(superClass.prototype);
  subClass.prototype.constructor = subClass;
  subClass.__proto__ = superClass;
}

function _assertThisInitialized$1$1(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

return self;
}

/**
 * @private
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} target
 * @param {...Object} objects_to_assign
 * @returns {Object} target
 */
var assign$6;

if (typeof Object.assign !== 'function') {
  assign$6 = function assign(target) {
    if (target === undefined || target === null) {
      throw new TypeError('Cannot convert undefined or null to object');
    }

var output = Object(target);

for (var index = 1; index < arguments.length; index++) {
      var source = arguments[index];

if (source !== undefined && source !== null) {
        for (var nextKey in source) {
          if (source.hasOwnProperty(nextKey)) {
            output[nextKey] = source[nextKey];
          }
        }
      }
    }

return output;
  };
} else {
  assign$6 = Object.assign;
}

var assign$1$1 = assign$6;

var VENDOR_PREFIXES$1 = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];
var TEST_ELEMENT$1 = typeof document === "undefined" ? {
  style: {}
} : document.createElement('div');
var TYPE_FUNCTION$1 = 'function';
var round$3 = Math.round,
    abs$3 = Math.abs;
var now$4 = Date.now;

/**
 * @private
 * get the prefixed property
 * @param {Object} obj
 * @param {String} property
 * @returns {String|Undefined} prefixed
 */

function prefixed$1(obj, property) {
  var prefix;
  var prop;
  var camelProp = property[0].toUpperCase() + property.slice(1);
  var i = 0;

while (i < VENDOR_PREFIXES$1.length) {
    prefix = VENDOR_PREFIXES$1[i];
    prop = prefix ? prefix + camelProp : property;

if (prop in obj) {
      return prop;
    }

i++;
  }

return undefined;
}

/* eslint-disable no-new-func, no-nested-ternary */
var win$1;

if (typeof window === "undefined") {
  // window is undefined in node.js
  win$1 = {};
} else {
  win$1 = window;
}

var PREFIXED_TOUCH_ACTION$1 = prefixed$1(TEST_ELEMENT$1.style, 'touchAction');
var NATIVE_TOUCH_ACTION$1 = PREFIXED_TOUCH_ACTION$1 !== undefined;
function getTouchActionProps$1() {
  if (!NATIVE_TOUCH_ACTION$1) {
    return false;
  }

var touchMap = {};
  var cssSupports = win$1.CSS && win$1.CSS.supports;
  ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function (val) {
    // If css.supports is not supported but there is native touch-action assume it supports
    // all values. This is the case for IE 10 and 11.
    return touchMap[val] = cssSupports ? win$1.CSS.supports('touch-action', val) : true;
  });
  return touchMap;
}

var TOUCH_ACTION_COMPUTE$1 = 'compute';
var TOUCH_ACTION_AUTO$1 = 'auto';
var TOUCH_ACTION_MANIPULATION$1 = 'manipulation'; // not implemented

var TOUCH_ACTION_NONE$1 = 'none';
var TOUCH_ACTION_PAN_X$1 = 'pan-x';
var TOUCH_ACTION_PAN_Y$1 = 'pan-y';
var TOUCH_ACTION_MAP$1 = getTouchActionProps$1();

var MOBILE_REGEX$1 = /mobile|tablet|ip(ad|hone|od)|android/i;
var SUPPORT_TOUCH$1 = 'ontouchstart' in win$1;
var SUPPORT_POINTER_EVENTS$1 = prefixed$1(win$1, 'PointerEvent') !== undefined;
var SUPPORT_ONLY_TOUCH$1 = SUPPORT_TOUCH$1 && MOBILE_REGEX$1.test(navigator.userAgent);
var INPUT_TYPE_TOUCH$1 = 'touch';
var INPUT_TYPE_PEN$1 = 'pen';
var INPUT_TYPE_MOUSE$1 = 'mouse';
var INPUT_TYPE_KINECT$1 = 'kinect';
var COMPUTE_INTERVAL$1 = 25;
var INPUT_START$1 = 1;
var INPUT_MOVE$1 = 2;
var INPUT_END$1 = 4;
var INPUT_CANCEL$1 = 8;
var DIRECTION_NONE$1 = 1;
var DIRECTION_LEFT$1 = 2;
var DIRECTION_RIGHT$1 = 4;
var DIRECTION_UP$1 = 8;
var DIRECTION_DOWN$1 = 16;
var DIRECTION_HORIZONTAL$1 = DIRECTION_LEFT$1 | DIRECTION_RIGHT$1;
var DIRECTION_VERTICAL$1 = DIRECTION_UP$1 | DIRECTION_DOWN$1;
var DIRECTION_ALL$1 = DIRECTION_HORIZONTAL$1 | DIRECTION_VERTICAL$1;
var PROPS_XY$1 = ['x', 'y'];
var PROPS_CLIENT_XY$1 = ['clientX', 'clientY'];

/**
 * @private
 * walk objects and arrays
 * @param {Object} obj
 * @param {Function} iterator
 * @param {Object} context
 */
function each$6(obj, iterator, context) {
  var i;

if (!obj) {
    return;
  }

if (obj.forEach) {
    obj.forEach(iterator, context);
  } else if (obj.length !== undefined) {
    i = 0;

while (i < obj.length) {
      iterator.call(context, obj[i], i, obj);
      i++;
    }
  } else {
    for (i in obj) {
      obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);
    }
  }
}

/**
 * @private
 * let a boolean value also be a function that must return a boolean
 * this first item in args will be used as the context
 * @param {Boolean|Function} val
 * @param {Array} [args]
 * @returns {Boolean}
 */

function boolOrFn$1(val, args) {
  if (typeof val === TYPE_FUNCTION$1) {
    return val.apply(args ? args[0] || undefined : undefined, args);
  }

return val;
}

/**
 * @private
 * small indexOf wrapper
 * @param {String} str
 * @param {String} find
 * @returns {Boolean} found
 */
function inStr$1(str, find) {
  return str.indexOf(find) > -1;
}

/**
 * @private
 * when the touchActions are collected they are not a valid value, so we need to clean things up. *
 * @param {String} actions
 * @returns {*}
 */

function cleanTouchActions$1(actions) {
  // none
  if (inStr$1(actions, TOUCH_ACTION_NONE$1)) {
    return TOUCH_ACTION_NONE$1;
  }

var hasPanX = inStr$1(actions, TOUCH_ACTION_PAN_X$1);
  var hasPanY = inStr$1(actions, TOUCH_ACTION_PAN_Y$1); // if both pan-x and pan-y are set (different recognizers
  // for different directions, e.g. horizontal pan but vertical swipe?)
  // we need none (as otherwise with pan-x pan-y combined none of these
  // recognizers will work, since the browser would handle all panning

if (hasPanX && hasPanY) {
    return TOUCH_ACTION_NONE$1;
  } // pan-x OR pan-y

if (hasPanX || hasPanY) {
    return hasPanX ? TOUCH_ACTION_PAN_X$1 : TOUCH_ACTION_PAN_Y$1;
  } // manipulation

if (inStr$1(actions, TOUCH_ACTION_MANIPULATION$1)) {
    return TOUCH_ACTION_MANIPULATION$1;
  }

return TOUCH_ACTION_AUTO$1;
}

/**
 * @private
 * Touch Action
 * sets the touchAction property or uses the js alternative
 * @param {Manager} manager
 * @param {String} value
 * @constructor
 */

var TouchAction$1 =
/*#__PURE__*/
function () {
  function TouchAction(manager, value) {
    this.manager = manager;
    this.set(value);
  }
  /**
   * @private
   * set the touchAction value on the element or enable the polyfill
   * @param {String} value
   */

var _proto = TouchAction.prototype;

_proto.set = function set(value) {
    // find out the touch-action by the event handlers
    if (value === TOUCH_ACTION_COMPUTE$1) {
      value = this.compute();
    }

if (NATIVE_TOUCH_ACTION$1 && this.manager.element.style && TOUCH_ACTION_MAP$1[value]) {
      this.manager.element.style[PREFIXED_TOUCH_ACTION$1] = value;
    }

this.actions = value.toLowerCase().trim();
  };
  /**
   * @private
   * just re-set the touchAction value
   */

_proto.update = function update() {
    this.set(this.manager.options.touchAction);
  };
  /**
   * @private
   * compute the value for the touchAction property based on the recognizer's settings
   * @returns {String} value
   */

_proto.compute = function compute() {
    var actions = [];
    each$6(this.manager.recognizers, function (recognizer) {
      if (boolOrFn$1(recognizer.options.enable, [recognizer])) {
        actions = actions.concat(recognizer.getTouchAction());
      }
    });
    return cleanTouchActions$1(actions.join(' '));
  };
  /**
   * @private
   * this method is called on each input cycle and provides the preventing of the browser behavior
   * @param {Object} input
   */

_proto.preventDefaults = function preventDefaults(input) {
    var srcEvent = input.srcEvent;
    var direction = input.offsetDirection; // if the touch action did prevented once this session

if (this.manager.session.prevented) {
      srcEvent.preventDefault();
      return;
    }

var actions = this.actions;
    var hasNone = inStr$1(actions, TOUCH_ACTION_NONE$1) && !TOUCH_ACTION_MAP$1[TOUCH_ACTION_NONE$1];
    var hasPanY = inStr$1(actions, TOUCH_ACTION_PAN_Y$1) && !TOUCH_ACTION_MAP$1[TOUCH_ACTION_PAN_Y$1];
    var hasPanX = inStr$1(actions, TOUCH_ACTION_PAN_X$1) && !TOUCH_ACTION_MAP$1[TOUCH_ACTION_PAN_X$1];

if (hasNone) {
      // do not prevent defaults if this is a tap gesture
      var isTapPointer = input.pointers.length === 1;
      var isTapMovement = input.distance < 2;
      var isTapTouchTime = input.deltaTime < 250;

if (isTapPointer && isTapMovement && isTapTouchTime) {
        return;
      }
    }

if (hasPanX && hasPanY) {
      // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent
      return;
    }

if (hasNone || hasPanY && direction & DIRECTION_HORIZONTAL$1 || hasPanX && direction & DIRECTION_VERTICAL$1) {
      return this.preventSrc(srcEvent);
    }
  };
  /**
   * @private
   * call preventDefault to prevent the browser's default behavior (scrolling in most cases)
   * @param {Object} srcEvent
   */

_proto.preventSrc = function preventSrc(srcEvent) {
    this.manager.session.prevented = true;
    srcEvent.preventDefault();
  };

return TouchAction;
}();

/**
 * @private
 * find if a node is in the given parent
 * @method hasParent
 * @param {HTMLElement} node
 * @param {HTMLElement} parent
 * @return {Boolean} found
 */
function hasParent$1(node, parent) {
  while (node) {
    if (node === parent) {
      return true;
    }

node = node.parentNode;
  }

return false;
}

/**
 * @private
 * get the center of all the pointers
 * @param {Array} pointers
 * @return {Object} center contains `x` and `y` properties
 */

function getCenter$1(pointers) {
  var pointersLength = pointers.length; // no need to loop when only one touch

if (pointersLength === 1) {
    return {
      x: round$3(pointers[0].clientX),
      y: round$3(pointers[0].clientY)
    };
  }

var x = 0;
  var y = 0;
  var i = 0;

while (i < pointersLength) {
    x += pointers[i].clientX;
    y += pointers[i].clientY;
    i++;
  }

return {
    x: round$3(x / pointersLength),
    y: round$3(y / pointersLength)
  };
}

/**
 * @private
 * create a simple clone from the input used for storage of firstInput and firstMultiple
 * @param {Object} input
 * @returns {Object} clonedInputData
 */

function simpleCloneInputData$1(input) {
  // make a simple copy of the pointers because we will get a reference if we don't
  // we only need clientXY for the calculations
  var pointers = [];
  var i = 0;

while (i < input.pointers.length) {
    pointers[i] = {
      clientX: round$3(input.pointers[i].clientX),
      clientY: round$3(input.pointers[i].clientY)
    };
    i++;
  }

return {
    timeStamp: now$4(),
    pointers: pointers,
    center: getCenter$1(pointers),
    deltaX: input.deltaX,
    deltaY: input.deltaY
  };
}

/**
 * @private
 * calculate the absolute distance between two points
 * @param {Object} p1 {x, y}
 * @param {Object} p2 {x, y}
 * @param {Array} [props] containing x and y keys
 * @return {Number} distance
 */

function getDistance$1(p1, p2, props) {
  if (!props) {
    props = PROPS_XY$1;
  }

var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.sqrt(x * x + y * y);
}

/**
 * @private
 * calculate the angle between two coordinates
 * @param {Object} p1
 * @param {Object} p2
 * @param {Array} [props] containing x and y keys
 * @return {Number} angle
 */

function getAngle$1(p1, p2, props) {
  if (!props) {
    props = PROPS_XY$1;
  }

var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.atan2(y, x) * 180 / Math.PI;
}

/**
 * @private
 * get the direction between two points
 * @param {Number} x
 * @param {Number} y
 * @return {Number} direction
 */

function getDirection$1(x, y) {
  if (x === y) {
    return DIRECTION_NONE$1;
  }

if (abs$3(x) >= abs$3(y)) {
    return x < 0 ? DIRECTION_LEFT$1 : DIRECTION_RIGHT$1;
  }

return y < 0 ? DIRECTION_UP$1 : DIRECTION_DOWN$1;
}

function computeDeltaXY$1(session, input) {
  var center = input.center; // let { offsetDelta:offset = {}, prevDelta = {}, prevInput = {} } = session;
  // jscs throwing error on defalut destructured values and without defaults tests fail

var offset = session.offsetDelta || {};
  var prevDelta = session.prevDelta || {};
  var prevInput = session.prevInput || {};

if (input.eventType === INPUT_START$1 || prevInput.eventType === INPUT_END$1) {
    prevDelta = session.prevDelta = {
      x: prevInput.deltaX || 0,
      y: prevInput.deltaY || 0
    };
    offset = session.offsetDelta = {
      x: center.x,
      y: center.y
    };
  }

input.deltaX = prevDelta.x + (center.x - offset.x);
  input.deltaY = prevDelta.y + (center.y - offset.y);
}

/**
 * @private
 * calculate the velocity between two points. unit is in px per ms.
 * @param {Number} deltaTime
 * @param {Number} x
 * @param {Number} y
 * @return {Object} velocity `x` and `y`
 */
function getVelocity$1(deltaTime, x, y) {
  return {
    x: x / deltaTime || 0,
    y: y / deltaTime || 0
  };
}

/**
 * @private
 * calculate the scale factor between two pointersets
 * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} scale
 */

function getScale$1(start, end) {
  return getDistance$1(end[0], end[1], PROPS_CLIENT_XY$1) / getDistance$1(start[0], start[1], PROPS_CLIENT_XY$1);
}

/**
 * @private
 * calculate the rotation degrees between two pointersets
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} rotation
 */

function getRotation$1(start, end) {
  return getAngle$1(end[1], end[0], PROPS_CLIENT_XY$1) + getAngle$1(start[1], start[0], PROPS_CLIENT_XY$1);
}

/**
 * @private
 * velocity is calculated every x ms
 * @param {Object} session
 * @param {Object} input
 */

function computeIntervalInputData$1(session, input) {
  var last = session.lastInterval || input;
  var deltaTime = input.timeStamp - last.timeStamp;
  var velocity;
  var velocityX;
  var velocityY;
  var direction;

if (input.eventType !== INPUT_CANCEL$1 && (deltaTime > COMPUTE_INTERVAL$1 || last.velocity === undefined)) {
    var deltaX = input.deltaX - last.deltaX;
    var deltaY = input.deltaY - last.deltaY;
    var v = getVelocity$1(deltaTime, deltaX, deltaY);
    velocityX = v.x;
    velocityY = v.y;
    velocity = abs$3(v.x) > abs$3(v.y) ? v.x : v.y;
    direction = getDirection$1(deltaX, deltaY);
    session.lastInterval = input;
  } else {
    // use latest velocity info if it doesn't overtake a minimum period
    velocity = last.velocity;
    velocityX = last.velocityX;
    velocityY = last.velocityY;
    direction = last.direction;
  }

input.velocity = velocity;
  input.velocityX = velocityX;
  input.velocityY = velocityY;
  input.direction = direction;
}

/**
* @private
 * extend the data with some usable properties like scale, rotate, velocity etc
 * @param {Object} manager
 * @param {Object} input
 */

function computeInputData$1(manager, input) {
  var session = manager.session;
  var pointers = input.pointers;
  var pointersLength = pointers.length; // store the first input to calculate the distance and direction

if (!session.firstInput) {
    session.firstInput = simpleCloneInputData$1(input);
  } // to compute scale and rotation we need to store the multiple touches

if (pointersLength > 1 && !session.firstMultiple) {
    session.firstMultiple = simpleCloneInputData$1(input);
  } else if (pointersLength === 1) {
    session.firstMultiple = false;
  }

var firstInput = session.firstInput,
      firstMultiple = session.firstMultiple;
  var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;
  var center = input.center = getCenter$1(pointers);
  input.timeStamp = now$4();
  input.deltaTime = input.timeStamp - firstInput.timeStamp;
  input.angle = getAngle$1(offsetCenter, center);
  input.distance = getDistance$1(offsetCenter, center);
  computeDeltaXY$1(session, input);
  input.offsetDirection = getDirection$1(input.deltaX, input.deltaY);
  var overallVelocity = getVelocity$1(input.deltaTime, input.deltaX, input.deltaY);
  input.overallVelocityX = overallVelocity.x;
  input.overallVelocityY = overallVelocity.y;
  input.overallVelocity = abs$3(overallVelocity.x) > abs$3(overallVelocity.y) ? overallVelocity.x : overallVelocity.y;
  input.scale = firstMultiple ? getScale$1(firstMultiple.pointers, pointers) : 1;
  input.rotation = firstMultiple ? getRotation$1(firstMultiple.pointers, pointers) : 0;
  input.maxPointers = !session.prevInput ? input.pointers.length : input.pointers.length > session.prevInput.maxPointers ? input.pointers.length : session.prevInput.maxPointers;
  computeIntervalInputData$1(session, input); // find the correct target

var target = manager.element;
  var srcEvent = input.srcEvent;
  var srcEventTarget;

if (srcEvent.composedPath) {
    srcEventTarget = srcEvent.composedPath()[0];
  } else if (srcEvent.path) {
    srcEventTarget = srcEvent.path[0];
  } else {
    srcEventTarget = srcEvent.target;
  }

if (hasParent$1(srcEventTarget, target)) {
    target = srcEventTarget;
  }

input.target = target;
}

/**
 * @private
 * handle input events
 * @param {Manager} manager
 * @param {String} eventType
 * @param {Object} input
 */

function inputHandler$1(manager, eventType, input) {
  var pointersLen = input.pointers.length;
  var changedPointersLen = input.changedPointers.length;
  var isFirst = eventType & INPUT_START$1 && pointersLen - changedPointersLen === 0;
  var isFinal = eventType & (INPUT_END$1 | INPUT_CANCEL$1) && pointersLen - changedPointersLen === 0;
  input.isFirst = !!isFirst;
  input.isFinal = !!isFinal;

if (isFirst) {
    manager.session = {};
  } // source event is the normalized value of the domEvents
  // like 'touchstart, mouseup, pointerdown'

input.eventType = eventType; // compute scale, rotation etc

computeInputData$1(manager, input); // emit secret event

manager.emit('hammer.input', input);
  manager.recognize(input);
  manager.session.prevInput = input;
}

/**
 * @private
 * split string on whitespace
 * @param {String} str
 * @returns {Array} words
 */
function splitStr$1(str) {
  return str.trim().split(/\s+/g);
}

/**
 * @private
 * addEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function addEventListeners$1(target, types, handler) {
  each$6(splitStr$1(types), function (type) {
    target.addEventListener(type, handler, false);
  });
}

/**
 * @private
 * removeEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function removeEventListeners$1(target, types, handler) {
  each$6(splitStr$1(types), function (type) {
    target.removeEventListener(type, handler, false);
  });
}

/**
 * @private
 * get the window object of an element
 * @param {HTMLElement} element
 * @returns {DocumentView|Window}
 */
function getWindowForElement$1(element) {
  var doc = element.ownerDocument || element;
  return doc.defaultView || doc.parentWindow || window;
}

/**
 * @private
 * create new input type manager
 * @param {Manager} manager
 * @param {Function} callback
 * @returns {Input}
 * @constructor
 */

var Input$1 =
/*#__PURE__*/
function () {
  function Input(manager, callback) {
    var self = this;
    this.manager = manager;
    this.callback = callback;
    this.element = manager.element;
    this.target = manager.options.inputTarget; // smaller wrapper around the handler, for the scope and the enabled state of the manager,
    // so when disabled the input events are completely bypassed.

this.domHandler = function (ev) {
      if (boolOrFn$1(manager.options.enable, [manager])) {
        self.handler(ev);
      }
    };

this.init();
  }
  /**
   * @private
   * should handle the inputEvent data and trigger the callback
   * @virtual
   */

var _proto = Input.prototype;

_proto.handler = function handler() {};
  /**
   * @private
   * bind the events
   */

_proto.init = function init() {
    this.evEl && addEventListeners$1(this.element, this.evEl, this.domHandler);
    this.evTarget && addEventListeners$1(this.target, this.evTarget, this.domHandler);
    this.evWin && addEventListeners$1(getWindowForElement$1(this.element), this.evWin, this.domHandler);
  };
  /**
   * @private
   * unbind the events
   */

_proto.destroy = function destroy() {
    this.evEl && removeEventListeners$1(this.element, this.evEl, this.domHandler);
    this.evTarget && removeEventListeners$1(this.target, this.evTarget, this.domHandler);
    this.evWin && removeEventListeners$1(getWindowForElement$1(this.element), this.evWin, this.domHandler);
  };

return Input;
}();

/**
 * @private
 * find if a array contains the object using indexOf or a simple polyFill
 * @param {Array} src
 * @param {String} find
 * @param {String} [findByKey]
 * @return {Boolean|Number} false when not found, or the index
 */
function inArray$1(src, find, findByKey) {
  if (src.indexOf && !findByKey) {
    return src.indexOf(find);
  } else {
    var i = 0;

while (i < src.length) {
      if (findByKey && src[i][findByKey] == find || !findByKey && src[i] === find) {
        // do not use === here, test fails
        return i;
      }

i++;
    }

return -1;
  }
}

var POINTER_INPUT_MAP$1 = {
  pointerdown: INPUT_START$1,
  pointermove: INPUT_MOVE$1,
  pointerup: INPUT_END$1,
  pointercancel: INPUT_CANCEL$1,
  pointerout: INPUT_CANCEL$1
}; // in IE10 the pointer types is defined as an enum

var IE10_POINTER_TYPE_ENUM$1 = {
  2: INPUT_TYPE_TOUCH$1,
  3: INPUT_TYPE_PEN$1,
  4: INPUT_TYPE_MOUSE$1,
  5: INPUT_TYPE_KINECT$1 // see https://twitter.com/jacobrossi/status/480596438489890816

};
var POINTER_ELEMENT_EVENTS$1 = 'pointerdown';
var POINTER_WINDOW_EVENTS$1 = 'pointermove pointerup pointercancel'; // IE10 has prefixed support, and case-sensitive

if (win$1.MSPointerEvent && !win$1.PointerEvent) {
  POINTER_ELEMENT_EVENTS$1 = 'MSPointerDown';
  POINTER_WINDOW_EVENTS$1 = 'MSPointerMove MSPointerUp MSPointerCancel';
}
/**
 * @private
 * Pointer events input
 * @constructor
 * @extends Input
 */

var PointerEventInput$1 =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose$1(PointerEventInput, _Input);

function PointerEventInput() {
    var _this;

var proto = PointerEventInput.prototype;
    proto.evEl = POINTER_ELEMENT_EVENTS$1;
    proto.evWin = POINTER_WINDOW_EVENTS$1;
    _this = _Input.apply(this, arguments) || this;
    _this.store = _this.manager.session.pointerEvents = [];
    return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */

var _proto = PointerEventInput.prototype;

_proto.handler = function handler(ev) {
    var store = this.store;
    var removePointer = false;
    var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');
    var eventType = POINTER_INPUT_MAP$1[eventTypeNormalized];
    var pointerType = IE10_POINTER_TYPE_ENUM$1[ev.pointerType] || ev.pointerType;
    var isTouch = pointerType === INPUT_TYPE_TOUCH$1; // get index of the event in the store

var storeIndex = inArray$1(store, ev.pointerId, 'pointerId'); // start and mouse must be down

if (eventType & INPUT_START$1 && (ev.button === 0 || isTouch)) {
      if (storeIndex < 0) {
        store.push(ev);
        storeIndex = store.length - 1;
      }
    } else if (eventType & (INPUT_END$1 | INPUT_CANCEL$1)) {
      removePointer = true;
    } // it not found, so the pointer hasn't been down (so it's probably a hover)

if (storeIndex < 0) {
      return;
    } // update the event in the store

store[storeIndex] = ev;
    this.callback(this.manager, eventType, {
      pointers: store,
      changedPointers: [ev],
      pointerType: pointerType,
      srcEvent: ev
    });

if (removePointer) {
      // remove from the store
      store.splice(storeIndex, 1);
    }
  };

return PointerEventInput;
}(Input$1);

/**
 * @private
 * convert array-like objects to real arrays
 * @param {Object} obj
 * @returns {Array}
 */
function toArray$1(obj) {
  return Array.prototype.slice.call(obj, 0);
}

/**
 * @private
 * unique array with objects based on a key (like 'id') or just by the array's value
 * @param {Array} src [{id:1},{id:2},{id:1}]
 * @param {String} [key]
 * @param {Boolean} [sort=False]
 * @returns {Array} [{id:1},{id:2}]
 */

function uniqueArray$1(src, key, sort) {
  var results = [];
  var values = [];
  var i = 0;

while (i < src.length) {
    var val = key ? src[i][key] : src[i];

if (inArray$1(values, val) < 0) {
      results.push(src[i]);
    }

values[i] = val;
    i++;
  }

if (sort) {
    if (!key) {
      results = results.sort();
    } else {
      results = results.sort(function (a, b) {
        return a[key] > b[key];
      });
    }
  }

return results;
}

var TOUCH_INPUT_MAP$1 = {
  touchstart: INPUT_START$1,
  touchmove: INPUT_MOVE$1,
  touchend: INPUT_END$1,
  touchcancel: INPUT_CANCEL$1
};
var TOUCH_TARGET_EVENTS$1 = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Multi-user touch events input
 * @constructor
 * @extends Input
 */

var TouchInput$1 =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose$1(TouchInput, _Input);

function TouchInput() {
    var _this;

TouchInput.prototype.evTarget = TOUCH_TARGET_EVENTS$1;
    _this = _Input.apply(this, arguments) || this;
    _this.targetIds = {}; // this.evTarget = TOUCH_TARGET_EVENTS;

return _this;
  }

var _proto = TouchInput.prototype;

_proto.handler = function handler(ev) {
    var type = TOUCH_INPUT_MAP$1[ev.type];
    var touches = getTouches$1.call(this, ev, type);

if (!touches) {
      return;
    }

this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH$1,
      srcEvent: ev
    });
  };

return TouchInput;
}(Input$1);

function getTouches$1(ev, type) {
  var allTouches = toArray$1(ev.touches);
  var targetIds = this.targetIds; // when there is only one touch, the process can be simplified

if (type & (INPUT_START$1 | INPUT_MOVE$1) && allTouches.length === 1) {
    targetIds[allTouches[0].identifier] = true;
    return [allTouches, allTouches];
  }

var i;
  var targetTouches;
  var changedTouches = toArray$1(ev.changedTouches);
  var changedTargetTouches = [];
  var target = this.target; // get target touches from touches

targetTouches = allTouches.filter(function (touch) {
    return hasParent$1(touch.target, target);
  }); // collect touches

if (type === INPUT_START$1) {
    i = 0;

while (i < targetTouches.length) {
      targetIds[targetTouches[i].identifier] = true;
      i++;
    }
  } // filter changed touches to only contain touches that exist in the collected target ids

i = 0;

while (i < changedTouches.length) {
    if (targetIds[changedTouches[i].identifier]) {
      changedTargetTouches.push(changedTouches[i]);
    } // cleanup removed touches

if (type & (INPUT_END$1 | INPUT_CANCEL$1)) {
      delete targetIds[changedTouches[i].identifier];
    }

i++;
  }

if (!changedTargetTouches.length) {
    return;
  }

return [// merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'
  uniqueArray$1(targetTouches.concat(changedTargetTouches), 'identifier', true), changedTargetTouches];
}

var MOUSE_INPUT_MAP$1 = {
  mousedown: INPUT_START$1,
  mousemove: INPUT_MOVE$1,
  mouseup: INPUT_END$1
};
var MOUSE_ELEMENT_EVENTS$1 = 'mousedown';
var MOUSE_WINDOW_EVENTS$1 = 'mousemove mouseup';
/**
 * @private
 * Mouse events input
 * @constructor
 * @extends Input
 */

var MouseInput$1 =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose$1(MouseInput, _Input);

function MouseInput() {
    var _this;

var proto = MouseInput.prototype;
    proto.evEl = MOUSE_ELEMENT_EVENTS$1;
    proto.evWin = MOUSE_WINDOW_EVENTS$1;
    _this = _Input.apply(this, arguments) || this;
    _this.pressed = false; // mousedown state

return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */

var _proto = MouseInput.prototype;

_proto.handler = function handler(ev) {
    var eventType = MOUSE_INPUT_MAP$1[ev.type]; // on start we want to have the left mouse button down

if (eventType & INPUT_START$1 && ev.button === 0) {
      this.pressed = true;
    }

if (eventType & INPUT_MOVE$1 && ev.which !== 1) {
      eventType = INPUT_END$1;
    } // mouse must be down

if (!this.pressed) {
      return;
    }

if (eventType & INPUT_END$1) {
      this.pressed = false;
    }

this.callback(this.manager, eventType, {
      pointers: [ev],
      changedPointers: [ev],
      pointerType: INPUT_TYPE_MOUSE$1,
      srcEvent: ev
    });
  };

return MouseInput;
}(Input$1);

/**
 * @private
 * Combined touch and mouse input
 *
 * Touch has a higher priority then mouse, and while touching no mouse events are allowed.
 * This because touch devices also emit mouse events while doing a touch.
 *
 * @constructor
 * @extends Input
 */

var DEDUP_TIMEOUT$1 = 2500;
var DEDUP_DISTANCE$1 = 25;

function setLastTouch$1(eventData) {
  var _eventData$changedPoi = eventData.changedPointers,
      touch = _eventData$changedPoi[0];

if (touch.identifier === this.primaryTouch) {
    var lastTouch = {
      x: touch.clientX,
      y: touch.clientY
    };
    var lts = this.lastTouches;
    this.lastTouches.push(lastTouch);

var removeLastTouch = function removeLastTouch() {
      var i = lts.indexOf(lastTouch);

if (i > -1) {
        lts.splice(i, 1);
      }
    };

setTimeout(removeLastTouch, DEDUP_TIMEOUT$1);
  }
}

function isSyntheticEvent$1(eventData) {
  var x = eventData.srcEvent.clientX;
  var y = eventData.srcEvent.clientY;

for (var i = 0; i < this.lastTouches.length; i++) {
    var t = this.lastTouches[i];
    var dx = Math.abs(x - t.x);
    var dy = Math.abs(y - t.y);

if (dx <= DEDUP_DISTANCE$1 && dy <= DEDUP_DISTANCE$1) {
      return true;
    }
  }

return false;
}

var TouchMouseInput$1 =
/*#__PURE__*/
function () {
  var TouchMouseInput =
  /*#__PURE__*/
  function (_Input) {
    _inheritsLoose$1(TouchMouseInput, _Input);

function TouchMouseInput(_manager, callback) {
      var _this;

_this = _Input.call(this, _manager, callback) || this;

_this.handler = function (manager, inputEvent, inputData) {
        var isTouch = inputData.pointerType === INPUT_TYPE_TOUCH$1;
        var isMouse = inputData.pointerType === INPUT_TYPE_MOUSE$1;

if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {
          return;
        } // when we're in a touch event, record touches to  de-dupe synthetic mouse event

if (isTouch) {
          recordTouches$1.call(_assertThisInitialized$1$1(_assertThisInitialized$1$1(_this)), inputEvent, inputData);
        } else if (isMouse && isSyntheticEvent$1.call(_assertThisInitialized$1$1(_assertThisInitialized$1$1(_this)), inputData)) {
          return;
        }

_this.callback(manager, inputEvent, inputData);
      };

_this.touch = new TouchInput$1(_this.manager, _this.handler);
      _this.mouse = new MouseInput$1(_this.manager, _this.handler);
      _this.primaryTouch = null;
      _this.lastTouches = [];
      return _this;
    }
    /**
     * @private
     * handle mouse and touch events
     * @param {Hammer} manager
     * @param {String} inputEvent
     * @param {Object} inputData
     */

var _proto = TouchMouseInput.prototype;

/**
     * @private
     * remove the event listeners
     */
    _proto.destroy = function destroy() {
      this.touch.destroy();
      this.mouse.destroy();
    };

return TouchMouseInput;
  }(Input$1);

return TouchMouseInput;
}();

/**
 * @private
 * create new input type manager
 * called by the Manager constructor
 * @param {Hammer} manager
 * @returns {Input}
 */

function createInputInstance$1(manager) {
  var Type; // let inputClass = manager.options.inputClass;

var inputClass = manager.options.inputClass;

if (inputClass) {
    Type = inputClass;
  } else if (SUPPORT_POINTER_EVENTS$1) {
    Type = PointerEventInput$1;
  } else if (SUPPORT_ONLY_TOUCH$1) {
    Type = TouchInput$1;
  } else if (!SUPPORT_TOUCH$1) {
    Type = MouseInput$1;
  } else {
    Type = TouchMouseInput$1;
  }

return new Type(manager, inputHandler$1);
}

/**
 * @private
 * if the argument is an array, we want to execute the fn on each entry
 * if it aint an array we don't want to do a thing.
 * this is used by all the methods that accept a single and array argument.
 * @param {*|Array} arg
 * @param {String} fn
 * @param {Object} [context]
 * @returns {Boolean}
 */

function invokeArrayArg$1(arg, fn, context) {
  if (Array.isArray(arg)) {
    each$6(arg, context[fn], context);
    return true;
  }

return false;
}

var STATE_POSSIBLE$1 = 1;
var STATE_BEGAN$1 = 2;
var STATE_CHANGED$1 = 4;
var STATE_ENDED$1 = 8;
var STATE_RECOGNIZED$1 = STATE_ENDED$1;
var STATE_CANCELLED$1 = 16;
var STATE_FAILED$1 = 32;

/**
 * @private
 * get a unique id
 * @returns {number} uniqueId
 */
var _uniqueId$1 = 1;
function uniqueId$1() {
  return _uniqueId$1++;
}

/**
 * @private
 * get a recognizer by name if it is bound to a manager
 * @param {Recognizer|String} otherRecognizer
 * @param {Recognizer} recognizer
 * @returns {Recognizer}
 */
function getRecognizerByNameIfManager$1(otherRecognizer, recognizer) {
  var manager = recognizer.manager;

if (manager) {
    return manager.get(otherRecognizer);
  }

return otherRecognizer;
}

/**
 * @private
 * get a usable string, used as event postfix
 * @param {constant} state
 * @returns {String} state
 */

return '';
}

/**
 * @private
 * Recognizer flow explained; *
 * All recognizers have the initial state of POSSIBLE when a input session starts.
 * The definition of a input session is from the first input until the last input, with all it's movement in it. *
 * Example session for mouse-input: mousedown -> mousemove -> mouseup
 *
 * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed
 * which determines with state it should be.
 *
 * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to
 * POSSIBLE to give it another change on the next cycle.
 *
 *               Possible
 *                  |
 *            +-----+---------------+
 *            |                     |
 *      +-----+-----+               |
 *      |           |               |
 *   Failed      Cancelled          |
 *                          +-------+------+
 *                          |              |
 *                      Recognized       Began
 *                                         |
 *                                      Changed
 *                                         |
 *                                  Ended/Recognized
 */

/**
 * @private
 * Recognizer
 * Every recognizer needs to extend from this class.
 * @constructor
 * @param {Object} options
 */

var Recognizer$1 =
/*#__PURE__*/
function () {
  function Recognizer(options) {
    if (options === void 0) {
      options = {};
    }

this.options = _extends$1({
      enable: true
    }, options);
    this.id = uniqueId$1();
    this.manager = null; // default is enable true

this.state = STATE_POSSIBLE$1;
    this.simultaneous = {};
    this.requireFail = [];
  }
  /**
   * @private
   * set options
   * @param {Object} options
   * @return {Recognizer}
   */

var _proto = Recognizer.prototype;

_proto.set = function set(options) {
    assign$1$1(this.options, options); // also update the touchAction, in case something changed about the directions/enabled state

this.manager && this.manager.touchAction.update();
    return this;
  };
  /**
   * @private
   * recognize simultaneous with an other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */

_proto.recognizeWith = function recognizeWith(otherRecognizer) {
    if (invokeArrayArg$1(otherRecognizer, 'recognizeWith', this)) {
      return this;
    }

var simultaneous = this.simultaneous;
    otherRecognizer = getRecognizerByNameIfManager$1(otherRecognizer, this);

if (!simultaneous[otherRecognizer.id]) {
      simultaneous[otherRecognizer.id] = otherRecognizer;
      otherRecognizer.recognizeWith(this);
    }

return this;
  };
  /**
   * @private
   * drop the simultaneous link. it doesnt remove the link on the other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */

_proto.dropRecognizeWith = function dropRecognizeWith(otherRecognizer) {
    if (invokeArrayArg$1(otherRecognizer, 'dropRecognizeWith', this)) {
      return this;
    }

otherRecognizer = getRecognizerByNameIfManager$1(otherRecognizer, this);
    delete this.simultaneous[otherRecognizer.id];
    return this;
  };
  /**
   * @private
   * recognizer can only run when an other is failing
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */

_proto.requireFailure = function requireFailure(otherRecognizer) {
    if (invokeArrayArg$1(otherRecognizer, 'requireFailure', this)) {
      return this;
    }

var requireFail = this.requireFail;
    otherRecognizer = getRecognizerByNameIfManager$1(otherRecognizer, this);

if (inArray$1(requireFail, otherRecognizer) === -1) {
      requireFail.push(otherRecognizer);
      otherRecognizer.requireFailure(this);
    }

return this;
  };
  /**
   * @private
   * drop the requireFailure link. it does not remove the link on the other recognizer.
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */

_proto.dropRequireFailure = function dropRequireFailure(otherRecognizer) {
    if (invokeArrayArg$1(otherRecognizer, 'dropRequireFailure', this)) {
      return this;
    }

otherRecognizer = getRecognizerByNameIfManager$1(otherRecognizer, this);
    var index = inArray$1(this.requireFail, otherRecognizer);

if (index > -1) {
      this.requireFail.splice(index, 1);
    }

return this;
  };
  /**
   * @private
   * has require failures boolean
   * @returns {boolean}
   */

_proto.hasRequireFailures = function hasRequireFailures() {
    return this.requireFail.length > 0;
  };
  /**
   * @private
   * if the recognizer can recognize simultaneous with an other recognizer
   * @param {Recognizer} otherRecognizer
   * @returns {Boolean}
   */

_proto.canRecognizeWith = function canRecognizeWith(otherRecognizer) {
    return !!this.simultaneous[otherRecognizer.id];
  };
  /**
   * @private
   * You should use `tryEmit` instead of `emit` directly to check
   * that all the needed recognizers has failed before emitting.
   * @param {Object} input
   */

_proto.emit = function emit(input) {
    var self = this;
    var state = this.state;

function emit(event) {
      self.manager.emit(event, input);
    } // 'panstart' and 'panmove'

if (state < STATE_ENDED$1) {
      emit(self.options.event + stateStr$1(state));
    }

emit(self.options.event); // simple 'eventName' events

if (input.additionalEvent) {
      // additional event(panleft, panright, pinchin, pinchout...)
      emit(input.additionalEvent);
    } // panend and pancancel

if (state >= STATE_ENDED$1) {
      emit(self.options.event + stateStr$1(state));
    }
  };
  /**
   * @private
   * Check that all the require failure recognizers has failed,
   * if true, it emits a gesture event,
   * otherwise, setup the state to FAILED.
   * @param {Object} input
   */

_proto.tryEmit = function tryEmit(input) {
    if (this.canEmit()) {
      return this.emit(input);
    } // it's failing anyway

this.state = STATE_FAILED$1;
  };
  /**
   * @private
   * can we emit?
   * @returns {boolean}
   */

_proto.canEmit = function canEmit() {
    var i = 0;

while (i < this.requireFail.length) {
      if (!(this.requireFail[i].state & (STATE_FAILED$1 | STATE_POSSIBLE$1))) {
        return false;
      }

i++;
    }

return true;
  };
  /**
   * @private
   * update the recognizer
   * @param {Object} inputData
   */

_proto.recognize = function recognize(inputData) {
    // make a new copy of the inputData
    // so we can change the inputData without messing up the other recognizers
    var inputDataClone = assign$1$1({}, inputData); // is is enabled and allow recognizing?

if (!boolOrFn$1(this.options.enable, [this, inputDataClone])) {
      this.reset();
      this.state = STATE_FAILED$1;
      return;
    } // reset when we've reached the end

if (this.state & (STATE_RECOGNIZED$1 | STATE_CANCELLED$1 | STATE_FAILED$1)) {
      this.state = STATE_POSSIBLE$1;
    }

this.state = this.process(inputDataClone); // the recognizer has recognized a gesture
    // so trigger an event

if (this.state & (STATE_BEGAN$1 | STATE_CHANGED$1 | STATE_ENDED$1 | STATE_CANCELLED$1)) {
      this.tryEmit(inputDataClone);
    }
  };
  /**
   * @private
   * return the state of the recognizer
   * the actual recognizing happens in this method
   * @virtual
   * @param {Object} inputData
   * @returns {constant} STATE
   */

/* jshint ignore:start */

_proto.process = function process(inputData) {};
  /* jshint ignore:end */

/**
   * @private
   * return the preferred touch-action
   * @virtual
   * @returns {Array}
   */

_proto.getTouchAction = function getTouchAction() {};
  /**
   * @private
   * called when the gesture isn't allowed to recognize
   * like when another is being recognized or it is disabled
   * @virtual
   */

_proto.reset = function reset() {};

return Recognizer;
}();

/**
 * @private
 * A tap is recognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur
 * between the given interval and position. The delay option can be used to recognize multi-taps without firing
 * a single tap.
 *
 * The eventData from the emitted event contains the property `tapCount`, which contains the amount of
 * multi-taps being recognized.
 * @constructor
 * @extends Recognizer
 */

var TapRecognizer$1 =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose$1(TapRecognizer, _Recognizer);

function TapRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _Recognizer.call(this, _extends$1({
      event: 'tap',
      pointers: 1,
      taps: 1,
      interval: 300,
      // max time between the multi-tap taps
      time: 250,
      // max time of the pointer to be down (like finger on the screen)
      threshold: 9,
      // a minimal movement is ok, but keep it low
      posThreshold: 10
    }, options)) || this; // previous time and center,
    // used for tap counting

_this.pTime = false;
    _this.pCenter = false;
    _this._timer = null;
    _this._input = null;
    _this.count = 0;
    return _this;
  }

var _proto = TapRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_MANIPULATION$1];
  };

_proto.process = function process(input) {
    var _this2 = this;

var options = this.options;
    var validPointers = input.pointers.length === options.pointers;
    var validMovement = input.distance < options.threshold;
    var validTouchTime = input.deltaTime < options.time;
    this.reset();

if (input.eventType & INPUT_START$1 && this.count === 0) {
      return this.failTimeout();
    } // we only allow little movement
    // and we've reached an end event, so a tap is possible

if (validMovement && validTouchTime && validPointers) {
      if (input.eventType !== INPUT_END$1) {
        return this.failTimeout();
      }

var validInterval = this.pTime ? input.timeStamp - this.pTime < options.interval : true;
      var validMultiTap = !this.pCenter || getDistance$1(this.pCenter, input.center) < options.posThreshold;
      this.pTime = input.timeStamp;
      this.pCenter = input.center;

if (!validMultiTap || !validInterval) {
        this.count = 1;
      } else {
        this.count += 1;
      }

this._input = input; // if tap count matches we have recognized it,
      // else it has began recognizing...

var tapCount = this.count % options.taps;

if (tapCount === 0) {
        // no failing requirements, immediately trigger the tap event
        // or wait as long as the multitap interval to trigger
        if (!this.hasRequireFailures()) {
          return STATE_RECOGNIZED$1;
        } else {
          this._timer = setTimeout(function () {
            _this2.state = STATE_RECOGNIZED$1;

_this2.tryEmit();
          }, options.interval);
          return STATE_BEGAN$1;
        }
      }
    }

return STATE_FAILED$1;
  };

_proto.failTimeout = function failTimeout() {
    var _this3 = this;

this._timer = setTimeout(function () {
      _this3.state = STATE_FAILED$1;
    }, this.options.interval);
    return STATE_FAILED$1;
  };

_proto.reset = function reset() {
    clearTimeout(this._timer);
  };

_proto.emit = function emit() {
    if (this.state === STATE_RECOGNIZED$1) {
      this._input.tapCount = this.count;
      this.manager.emit(this.options.event, this._input);
    }
  };

return TapRecognizer;
}(Recognizer$1);

/**
 * @private
 * This recognizer is just used as a base for the simple attribute recognizers.
 * @constructor
 * @extends Recognizer
 */

var AttrRecognizer$1 =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose$1(AttrRecognizer, _Recognizer);

function AttrRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _Recognizer.call(this, _extends$1({
      pointers: 1
    }, options)) || this;
  }
  /**
   * @private
   * Used to check if it the recognizer receives valid input, like input.distance > 10.
   * @memberof AttrRecognizer
   * @param {Object} input
   * @returns {Boolean} recognized
   */

var _proto = AttrRecognizer.prototype;

_proto.attrTest = function attrTest(input) {
    var optionPointers = this.options.pointers;
    return optionPointers === 0 || input.pointers.length === optionPointers;
  };
  /**
   * @private
   * Process the input and return the state for the recognizer
   * @memberof AttrRecognizer
   * @param {Object} input
   * @returns {*} State
   */

_proto.process = function process(input) {
    var state = this.state;
    var eventType = input.eventType;
    var isRecognized = state & (STATE_BEGAN$1 | STATE_CHANGED$1);
    var isValid = this.attrTest(input); // on cancel input and we've recognized before, return STATE_CANCELLED

if (isRecognized && (eventType & INPUT_CANCEL$1 || !isValid)) {
      return state | STATE_CANCELLED$1;
    } else if (isRecognized || isValid) {
      if (eventType & INPUT_END$1) {
        return state | STATE_ENDED$1;
      } else if (!(state & STATE_BEGAN$1)) {
        return STATE_BEGAN$1;
      }

return state | STATE_CHANGED$1;
    }

return STATE_FAILED$1;
  };

return AttrRecognizer;
}(Recognizer$1);

/**
 * @private
 * direction cons to string
 * @param {constant} direction
 * @returns {String}
 */

return '';
}

/**
 * @private
 * Pan
 * Recognized when the pointer is down and moved in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var PanRecognizer$1 =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose$1(PanRecognizer, _AttrRecognizer);

function PanRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _AttrRecognizer.call(this, _extends$1({
      event: 'pan',
      threshold: 10,
      pointers: 1,
      direction: DIRECTION_ALL$1
    }, options)) || this;
    _this.pX = null;
    _this.pY = null;
    return _this;
  }

var _proto = PanRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    var direction = this.options.direction;
    var actions = [];

if (direction & DIRECTION_HORIZONTAL$1) {
      actions.push(TOUCH_ACTION_PAN_Y$1);
    }

if (direction & DIRECTION_VERTICAL$1) {
      actions.push(TOUCH_ACTION_PAN_X$1);
    }

return actions;
  };

_proto.directionTest = function directionTest(input) {
    var options = this.options;
    var hasMoved = true;
    var distance = input.distance;
    var direction = input.direction;
    var x = input.deltaX;
    var y = input.deltaY; // lock to axis?

if (!(direction & options.direction)) {
      if (options.direction & DIRECTION_HORIZONTAL$1) {
        direction = x === 0 ? DIRECTION_NONE$1 : x < 0 ? DIRECTION_LEFT$1 : DIRECTION_RIGHT$1;
        hasMoved = x !== this.pX;
        distance = Math.abs(input.deltaX);
      } else {
        direction = y === 0 ? DIRECTION_NONE$1 : y < 0 ? DIRECTION_UP$1 : DIRECTION_DOWN$1;
        hasMoved = y !== this.pY;
        distance = Math.abs(input.deltaY);
      }
    }

input.direction = direction;
    return hasMoved && distance > options.threshold && direction & options.direction;
  };

_proto.attrTest = function attrTest(input) {
    return AttrRecognizer$1.prototype.attrTest.call(this, input) && ( // replace with a super call
    this.state & STATE_BEGAN$1 || !(this.state & STATE_BEGAN$1) && this.directionTest(input));
  };

_proto.emit = function emit(input) {
    this.pX = input.deltaX;
    this.pY = input.deltaY;
    var direction = directionStr$1(input.direction);

if (direction) {
      input.additionalEvent = this.options.event + direction;
    }

_AttrRecognizer.prototype.emit.call(this, input);
  };

return PanRecognizer;
}(AttrRecognizer$1);

/**
 * @private
 * Swipe
 * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var SwipeRecognizer$1 =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose$1(SwipeRecognizer, _AttrRecognizer);

function SwipeRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends$1({
      event: 'swipe',
      threshold: 10,
      velocity: 0.3,
      direction: DIRECTION_HORIZONTAL$1 | DIRECTION_VERTICAL$1,
      pointers: 1
    }, options)) || this;
  }

var _proto = SwipeRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return PanRecognizer$1.prototype.getTouchAction.call(this);
  };

_proto.attrTest = function attrTest(input) {
    var direction = this.options.direction;
    var velocity;

if (direction & (DIRECTION_HORIZONTAL$1 | DIRECTION_VERTICAL$1)) {
      velocity = input.overallVelocity;
    } else if (direction & DIRECTION_HORIZONTAL$1) {
      velocity = input.overallVelocityX;
    } else if (direction & DIRECTION_VERTICAL$1) {
      velocity = input.overallVelocityY;
    }

return _AttrRecognizer.prototype.attrTest.call(this, input) && direction & input.offsetDirection && input.distance > this.options.threshold && input.maxPointers === this.options.pointers && abs$3(velocity) > this.options.velocity && input.eventType & INPUT_END$1;
  };

_proto.emit = function emit(input) {
    var direction = directionStr$1(input.offsetDirection);

if (direction) {
      this.manager.emit(this.options.event + direction, input);
    }

this.manager.emit(this.options.event, input);
  };

return SwipeRecognizer;
}(AttrRecognizer$1);

/**
 * @private
 * Pinch
 * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).
 * @constructor
 * @extends AttrRecognizer
 */

var PinchRecognizer$1 =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose$1(PinchRecognizer, _AttrRecognizer);

function PinchRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends$1({
      event: 'pinch',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

var _proto = PinchRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE$1];
  };

_proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN$1);
  };

_proto.emit = function emit(input) {
    if (input.scale !== 1) {
      var inOut = input.scale < 1 ? 'in' : 'out';
      input.additionalEvent = this.options.event + inOut;
    }

_AttrRecognizer.prototype.emit.call(this, input);
  };

return PinchRecognizer;
}(AttrRecognizer$1);

/**
 * @private
 * Rotate
 * Recognized when two or more pointer are moving in a circular motion.
 * @constructor
 * @extends AttrRecognizer
 */

var RotateRecognizer$1 =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose$1(RotateRecognizer, _AttrRecognizer);

function RotateRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends$1({
      event: 'rotate',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

var _proto = RotateRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE$1];
  };

_proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN$1);
  };

return RotateRecognizer;
}(AttrRecognizer$1);

/**
 * @private
 * Press
 * Recognized when the pointer is down for x ms without any movement.
 * @constructor
 * @extends Recognizer
 */

var PressRecognizer$1 =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose$1(PressRecognizer, _Recognizer);

function PressRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _Recognizer.call(this, _extends$1({
      event: 'press',
      pointers: 1,
      time: 251,
      // minimal time of the pointer to be pressed
      threshold: 9
    }, options)) || this;
    _this._timer = null;
    _this._input = null;
    return _this;
  }

var _proto = PressRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_AUTO$1];
  };

_proto.process = function process(input) {
    var _this2 = this;

var options = this.options;
    var validPointers = input.pointers.length === options.pointers;
    var validMovement = input.distance < options.threshold;
    var validTime = input.deltaTime > options.time;
    this._input = input; // we only allow little movement
    // and we've reached an end event, so a tap is possible

if (!validMovement || !validPointers || input.eventType & (INPUT_END$1 | INPUT_CANCEL$1) && !validTime) {
      this.reset();
    } else if (input.eventType & INPUT_START$1) {
      this.reset();
      this._timer = setTimeout(function () {
        _this2.state = STATE_RECOGNIZED$1;

_this2.tryEmit();
      }, options.time);
    } else if (input.eventType & INPUT_END$1) {
      return STATE_RECOGNIZED$1;
    }

return STATE_FAILED$1;
  };

_proto.reset = function reset() {
    clearTimeout(this._timer);
  };

_proto.emit = function emit(input) {
    if (this.state !== STATE_RECOGNIZED$1) {
      return;
    }

if (input && input.eventType & INPUT_END$1) {
      this.manager.emit(this.options.event + "up", input);
    } else {
      this._input.timeStamp = now$4();
      this.manager.emit(this.options.event, this._input);
    }
  };

return PressRecognizer;
}(Recognizer$1);

var defaults$2 = {
  /**
   * @private
   * set if DOM events are being triggered.
   * But this is slower and unused by simple implementations, so disabled by default.
   * @type {Boolean}
   * @default false
   */
  domEvents: false,

/**
   * @private
   * The value for the touchAction property/fallback.
   * When set to `compute` it will magically set the correct value based on the added recognizers.
   * @type {String}
   * @default compute
   */
  touchAction: TOUCH_ACTION_COMPUTE$1,

/**
   * @private
   * @type {Boolean}
   * @default true
   */
  enable: true,

/**
   * @private
   * EXPERIMENTAL FEATURE -- can be removed/changed
   * Change the parent input target element.
   * If Null, then it is being set the to main element.
   * @type {Null|EventTarget}
   * @default null
   */
  inputTarget: null,

/**
   * @private
   * force an input class
   * @type {Null|Function}
   * @default null
   */
  inputClass: null,

/**
   * @private
   * Some CSS properties can be used to improve the working of Hammer.
   * Add them to this method and they will be set when creating a new Manager.
   * @namespace
   */
  cssProps: {
    /**
     * @private
     * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.
     * @type {String}
     * @default 'none'
     */
    userSelect: "none",

/**
     * @private
     * Disable the Windows Phone grippers when pressing an element.
     * @type {String}
     * @default 'none'
     */
    touchSelect: "none",

/**
     * @private
     * Disables the default callout shown when you touch and hold a touch target.
     * On iOS, when you touch and hold a touch target such as a link, Safari displays
     * a callout containing information about the link. This property allows you to disable that callout.
     * @type {String}
     * @default 'none'
     */
    touchCallout: "none",

/**
     * @private
     * Specifies whether zooming is enabled. Used by IE10>
     * @type {String}
     * @default 'none'
     */
    contentZooming: "none",

/**
     * @private
     * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.
     * @type {String}
     * @default 'none'
     */
    userDrag: "none",

/**
     * @private
     * Overrides the highlight color shown when the user taps a link or a JavaScript
     * clickable element in iOS. This property obeys the alpha value, if specified.
     * @type {String}
     * @default 'rgba(0,0,0,0)'
     */
    tapHighlightColor: "rgba(0,0,0,0)"
  }
};
/**
 * @private
 * Default recognizer setup when calling `Hammer()`
 * When creating a new Manager these will be skipped.
 * This is separated with other defaults because of tree-shaking.
 * @type {Array}
 */

var preset$1 = [[RotateRecognizer$1, {
  enable: false
}], [PinchRecognizer$1, {
  enable: false
}, ['rotate']], [SwipeRecognizer$1, {
  direction: DIRECTION_HORIZONTAL$1
}], [PanRecognizer$1, {
  direction: DIRECTION_HORIZONTAL$1
}, ['swipe']], [TapRecognizer$1], [TapRecognizer$1, {
  event: 'doubletap',
  taps: 2
}, ['tap']], [PressRecognizer$1]];

var STOP$1 = 1;
var FORCED_STOP$1 = 2;
/**
 * @private
 * add/remove the css properties as defined in manager.options.cssProps
 * @param {Manager} manager
 * @param {Boolean} add
 */

function toggleCssProps$1(manager, add) {
  var element = manager.element;

if (!element.style) {
    return;
  }

var prop;
  each$6(manager.options.cssProps, function (value, name) {
    prop = prefixed$1(element.style, name);

if (add) {
      manager.oldCssProps[prop] = element.style[prop];
      element.style[prop] = value;
    } else {
      element.style[prop] = manager.oldCssProps[prop] || "";
    }
  });

if (!add) {
    manager.oldCssProps = {};
  }
}
/**
 * @private
 * trigger dom event
 * @param {String} event
 * @param {Object} data
 */

var Manager$1 =
/*#__PURE__*/
function () {
  function Manager(element, options) {
    var _this = this;

this.options = assign$1$1({}, defaults$2, options || {});
    this.options.inputTarget = this.options.inputTarget || element;
    this.handlers = {};
    this.session = {};
    this.recognizers = [];
    this.oldCssProps = {};
    this.element = element;
    this.input = createInputInstance$1(this);
    this.touchAction = new TouchAction$1(this, this.options.touchAction);
    toggleCssProps$1(this, true);
    each$6(this.options.recognizers, function (item) {
      var recognizer = _this.add(new item[0](item[1]));

item[2] && recognizer.recognizeWith(item[2]);
      item[3] && recognizer.requireFailure(item[3]);
    }, this);
  }
  /**
   * @private
   * set options
   * @param {Object} options
   * @returns {Manager}
   */

var _proto = Manager.prototype;

_proto.set = function set(options) {
    assign$1$1(this.options, options); // Options that need a little more setup

if (options.touchAction) {
      this.touchAction.update();
    }

if (options.inputTarget) {
      // Clean up existing event listeners and reinitialize
      this.input.destroy();
      this.input.target = options.inputTarget;
      this.input.init();
    }

return this;
  };
  /**
   * @private
   * stop recognizing for this session.
   * This session will be discarded, when a new [input]start event is fired.
   * When forced, the recognizer cycle is stopped immediately.
   * @param {Boolean} [force]
   */

_proto.stop = function stop(force) {
    this.session.stopped = force ? FORCED_STOP$1 : STOP$1;
  };
  /**
   * @private
   * run the recognizers!
   * called by the inputHandler function on every movement of the pointers (touches)
   * it walks through all the recognizers and tries to detect the gesture that is being made
   * @param {Object} inputData
   */

_proto.recognize = function recognize(inputData) {
    var session = this.session;

if (session.stopped) {
      return;
    } // run the touch-action polyfill

this.touchAction.preventDefaults(inputData);
    var recognizer;
    var recognizers = this.recognizers; // this holds the recognizer that is being recognized.
    // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED
    // if no recognizer is detecting a thing, it is set to `null`

var curRecognizer = session.curRecognizer; // reset when the last recognizer is recognized
    // or when we're in a new session

if (!curRecognizer || curRecognizer && curRecognizer.state & STATE_RECOGNIZED$1) {
      session.curRecognizer = null;
      curRecognizer = null;
    }

var i = 0;

while (i < recognizers.length) {
      recognizer = recognizers[i]; // find out if we are allowed try to recognize the input for this one.
      // 1.   allow if the session is NOT forced stopped (see the .stop() method)
      // 2.   allow if we still haven't recognized a gesture in this session, or the this recognizer is the one
      //      that is being recognized.
      // 3.   allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.
      //      this can be setup with the `recognizeWith()` method on the recognizer.

if (session.stopped !== FORCED_STOP$1 && ( // 1
      !curRecognizer || recognizer === curRecognizer || // 2
      recognizer.canRecognizeWith(curRecognizer))) {
        // 3
        recognizer.recognize(inputData);
      } else {
        recognizer.reset();
      } // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the
      // current active recognizer. but only if we don't already have an active recognizer

if (!curRecognizer && recognizer.state & (STATE_BEGAN$1 | STATE_CHANGED$1 | STATE_ENDED$1)) {
        session.curRecognizer = recognizer;
        curRecognizer = recognizer;
      }

i++;
    }
  };
  /**
   * @private
   * get a recognizer by its event name.
   * @param {Recognizer|String} recognizer
   * @returns {Recognizer|Null}
   */

_proto.get = function get(recognizer) {
    if (recognizer instanceof Recognizer$1) {
      return recognizer;
    }

var recognizers = this.recognizers;

for (var i = 0; i < recognizers.length; i++) {
      if (recognizers[i].options.event === recognizer) {
        return recognizers[i];
      }
    }

return null;
  };
  /**
   * @private add a recognizer to the manager
   * existing recognizers with the same event name will be removed
   * @param {Recognizer} recognizer
   * @returns {Recognizer|Manager}
   */

_proto.add = function add(recognizer) {
    if (invokeArrayArg$1(recognizer, "add", this)) {
      return this;
    } // remove existing

var existing = this.get(recognizer.options.event);

if (existing) {
      this.remove(existing);
    }

this.recognizers.push(recognizer);
    recognizer.manager = this;
    this.touchAction.update();
    return recognizer;
  };
  /**
   * @private
   * remove a recognizer by name or instance
   * @param {Recognizer|String} recognizer
   * @returns {Manager}
   */

_proto.remove = function remove(recognizer) {
    if (invokeArrayArg$1(recognizer, "remove", this)) {
      return this;
    }

var targetRecognizer = this.get(recognizer); // let's make sure this recognizer exists

if (recognizer) {
      var recognizers = this.recognizers;
      var index = inArray$1(recognizers, targetRecognizer);

if (index !== -1) {
        recognizers.splice(index, 1);
        this.touchAction.update();
      }
    }

return this;
  };
  /**
   * @private
   * bind event
   * @param {String} events
   * @param {Function} handler
   * @returns {EventEmitter} this
   */

_proto.on = function on(events, handler) {
    if (events === undefined || handler === undefined) {
      return this;
    }

_proto.off = function off(events, handler) {
    if (events === undefined) {
      return this;
    }

_proto.emit = function emit(event, data) {
    // we also want to trigger dom events
    if (this.options.domEvents) {
      triggerDomEvent$1(event, data);
    } // no handlers, so skip it all

var handlers = this.handlers[event] && this.handlers[event].slice();

if (!handlers || !handlers.length) {
      return;
    }

data.type = event;

data.preventDefault = function () {
      data.srcEvent.preventDefault();
    };

var i = 0;

while (i < handlers.length) {
      handlers[i](data);
      i++;
    }
  };
  /**
   * @private
   * destroy the manager and unbinds all events
   * it doesn't unbind dom events, that is the user own responsibility
   */

_proto.destroy = function destroy() {
    this.element && toggleCssProps$1(this, false);
    this.handlers = {};
    this.session = {};
    this.input.destroy();
    this.element = null;
  };

return Manager;
}();

var SINGLE_TOUCH_INPUT_MAP$1 = {
  touchstart: INPUT_START$1,
  touchmove: INPUT_MOVE$1,
  touchend: INPUT_END$1,
  touchcancel: INPUT_CANCEL$1
};
var SINGLE_TOUCH_TARGET_EVENTS$1 = 'touchstart';
var SINGLE_TOUCH_WINDOW_EVENTS$1 = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Touch events input
 * @constructor
 * @extends Input
 */

var SingleTouchInput$1 =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose$1(SingleTouchInput, _Input);

function SingleTouchInput() {
    var _this;

var proto = SingleTouchInput.prototype;
    proto.evTarget = SINGLE_TOUCH_TARGET_EVENTS$1;
    proto.evWin = SINGLE_TOUCH_WINDOW_EVENTS$1;
    _this = _Input.apply(this, arguments) || this;
    _this.started = false;
    return _this;
  }

var _proto = SingleTouchInput.prototype;

_proto.handler = function handler(ev) {
    var type = SINGLE_TOUCH_INPUT_MAP$1[ev.type]; // should we handle the touch events?

if (type === INPUT_START$1) {
      this.started = true;
    }

if (!this.started) {
      return;
    }

var touches = normalizeSingleTouches$1.call(this, ev, type); // when done, reset the started state

if (type & (INPUT_END$1 | INPUT_CANCEL$1) && touches[0].length - touches[1].length === 0) {
      this.started = false;
    }

this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH$1,
      srcEvent: ev
    });
  };

return SingleTouchInput;
}(Input$1);

function normalizeSingleTouches$1(ev, type) {
  var all = toArray$1(ev.touches);
  var changed = toArray$1(ev.changedTouches);

if (type & (INPUT_END$1 | INPUT_CANCEL$1)) {
    all = uniqueArray$1(all.concat(changed), 'identifier', true);
  }

return [all, changed];
}

/**
 * @private
 * wrap a method with a deprecation warning and stack trace
 * @param {Function} method
 * @param {String} name
 * @param {String} message
 * @returns {Function} A new function wrapping the supplied method.
 */
function deprecate$1(method, name, message) {
  var deprecationMessage = "DEPRECATED METHOD: " + name + "\n" + message + " AT \n";
  return function () {
    var e = new Error('get-stack-trace');
    var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '').replace(/^\s+at\s+/gm, '').replace(/^Object.<anonymous>\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';
    var log = window.console && (window.console.warn || window.console.log);

if (log) {
      log.call(window.console, deprecationMessage, stack);
    }

return method.apply(this, arguments);
  };
}

/**
 * @private
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} dest
 * @param {Object} src
 * @param {Boolean} [merge=false]
 * @returns {Object} dest
 */

var extend$2 = deprecate$1(function (dest, src, merge) {
  var keys = Object.keys(src);
  var i = 0;

while (i < keys.length) {
    if (!merge || merge && dest[keys[i]] === undefined) {
      dest[keys[i]] = src[keys[i]];
    }

i++;
  }

return dest;
}, 'extend', 'Use `assign`.');

/**
 * @private
 * merge the values from src in the dest.
 * means that properties that exist in dest will not be overwritten by src
 * @param {Object} dest
 * @param {Object} src
 * @returns {Object} dest
 */

var merge$1$1 = deprecate$1(function (dest, src) {
  return extend$2(dest, src, true);
}, 'merge', 'Use `assign`.');

/**
 * @private
 * simple class inheritance
 * @param {Function} child
 * @param {Function} base
 * @param {Object} [properties]
 */

function inherit$1(child, base, properties) {
  var baseP = base.prototype;
  var childP;
  childP = child.prototype = Object.create(baseP);
  childP.constructor = child;
  childP._super = baseP;

if (properties) {
    assign$1$1(childP, properties);
  }
}

/**
 * @private
 * simple function bind
 * @param {Function} fn
 * @param {Object} context
 * @returns {Function}
 */
function bindFn$1(fn, context) {
  return function boundFn() {
    return fn.apply(context, arguments);
  };
}

/**
 * @private
 * Simple way to create a manager with a default set of recognizers.
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */

var Hammer$3 =
/*#__PURE__*/
function () {
  var Hammer =
  /**
    * @private
    * @const {string}
    */
  function Hammer(element, options) {
    if (options === void 0) {
      options = {};
    }

return new Manager$1(element, _extends$1({
      recognizers: preset$1.concat()
    }, options));
  };

Hammer.VERSION = "2.0.17-rc";
  Hammer.DIRECTION_ALL = DIRECTION_ALL$1;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN$1;
  Hammer.DIRECTION_LEFT = DIRECTION_LEFT$1;
  Hammer.DIRECTION_RIGHT = DIRECTION_RIGHT$1;
  Hammer.DIRECTION_UP = DIRECTION_UP$1;
  Hammer.DIRECTION_HORIZONTAL = DIRECTION_HORIZONTAL$1;
  Hammer.DIRECTION_VERTICAL = DIRECTION_VERTICAL$1;
  Hammer.DIRECTION_NONE = DIRECTION_NONE$1;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN$1;
  Hammer.INPUT_START = INPUT_START$1;
  Hammer.INPUT_MOVE = INPUT_MOVE$1;
  Hammer.INPUT_END = INPUT_END$1;
  Hammer.INPUT_CANCEL = INPUT_CANCEL$1;
  Hammer.STATE_POSSIBLE = STATE_POSSIBLE$1;
  Hammer.STATE_BEGAN = STATE_BEGAN$1;
  Hammer.STATE_CHANGED = STATE_CHANGED$1;
  Hammer.STATE_ENDED = STATE_ENDED$1;
  Hammer.STATE_RECOGNIZED = STATE_RECOGNIZED$1;
  Hammer.STATE_CANCELLED = STATE_CANCELLED$1;
  Hammer.STATE_FAILED = STATE_FAILED$1;
  Hammer.Manager = Manager$1;
  Hammer.Input = Input$1;
  Hammer.TouchAction = TouchAction$1;
  Hammer.TouchInput = TouchInput$1;
  Hammer.MouseInput = MouseInput$1;
  Hammer.PointerEventInput = PointerEventInput$1;
  Hammer.TouchMouseInput = TouchMouseInput$1;
  Hammer.SingleTouchInput = SingleTouchInput$1;
  Hammer.Recognizer = Recognizer$1;
  Hammer.AttrRecognizer = AttrRecognizer$1;
  Hammer.Tap = TapRecognizer$1;
  Hammer.Pan = PanRecognizer$1;
  Hammer.Swipe = SwipeRecognizer$1;
  Hammer.Pinch = PinchRecognizer$1;
  Hammer.Rotate = RotateRecognizer$1;
  Hammer.Press = PressRecognizer$1;
  Hammer.on = addEventListeners$1;
  Hammer.off = removeEventListeners$1;
  Hammer.each = each$6;
  Hammer.merge = merge$1$1;
  Hammer.extend = extend$2;
  Hammer.bindFn = bindFn$1;
  Hammer.assign = assign$1$1;
  Hammer.inherit = inherit$1;
  Hammer.bindFn = bindFn$1;
  Hammer.prefixed = prefixed$1;
  Hammer.toArray = toArray$1;
  Hammer.inArray = inArray$1;
  Hammer.uniqueArray = uniqueArray$1;
  Hammer.splitStr = splitStr$1;
  Hammer.boolOrFn = boolOrFn$1;
  Hammer.hasParent = hasParent$1;
  Hammer.addEventListeners = addEventListeners$1;
  Hammer.removeEventListeners = removeEventListeners$1;
  Hammer.defaults = assign$1$1({}, defaults$2, {
    preset: preset$1
  });
  return Hammer;
}();

var RealHammer$1 = Hammer$3;

/**
 * Use this symbol to delete properies in deepObjectAssign.
 */
var DELETE = _Symbol$2("DELETE");
/**
 * Pure version of deepObjectAssign, it doesn't modify any of it's arguments.
 *
 * @param base - The base object that fullfils the whole interface T.
 * @param updates - Updates that may change or delete props.
 * @returns A brand new instance with all the supplied objects deeply merged.
 */
function pureDeepObjectAssign(base) {
  var _context;
  for (var _len = arguments.length, updates = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    updates[_key - 1] = arguments[_key];
  }
  return deepObjectAssign.apply(void 0, _concatInstanceProperty$1(_context = [{}, base]).call(_context, updates));
}
/**
 * Deep version of object assign with additional deleting by the DELETE symbol.
 *
 * @param values - Objects to be deeply merged.
 * @returns The first object from values.
 */
function deepObjectAssign() {
  var merged = deepObjectAssignNonentry.apply(void 0, arguments);
  stripDelete(merged);
  return merged;
}
/**
 * Deep version of object assign with additional deleting by the DELETE symbol.
 *
 * @remarks
 * This doesn't strip the DELETE symbols so they may end up in the final object.
 * @param values - Objects to be deeply merged.
 * @returns The first object from values.
 */
function deepObjectAssignNonentry() {
  for (var _len2 = arguments.length, values = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
    values[_key2] = arguments[_key2];
  }
  if (values.length < 2) {
    return values[0];
  } else if (values.length > 2) {
    var _context2;
    return deepObjectAssignNonentry.apply(void 0, _concatInstanceProperty$1(_context2 = [deepObjectAssign(values[0], values[1])]).call(_context2, _toConsumableArray$1(_sliceInstanceProperty$2(values).call(values, 2))));
  }
  var a = values[0];
  var b = values[1];
  var _iterator = _createForOfIteratorHelper$3$1(_Reflect$ownKeys(b)),
    _step;
  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var prop = _step.value;
      if (!Object.prototype.propertyIsEnumerable.call(b, prop)) ;else if (b[prop] === DELETE) {
        delete a[prop];
      } else if (a[prop] !== null && b[prop] !== null && _typeof$1(a[prop]) === "object" && _typeof$1(b[prop]) === "object" && !_Array$isArray$2(a[prop]) && !_Array$isArray$2(b[prop])) {
        a[prop] = deepObjectAssignNonentry(a[prop], b[prop]);
      } else {
        a[prop] = clone$3(b[prop]);
      }
    }
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
  return a;
}
/**
 * Deep clone given object or array. In case of primitive simply return.
 *
 * @param a - Anything.
 * @returns Deep cloned object/array or unchanged a.
 */
function clone$3(a) {
  if (_Array$isArray$2(a)) {
    return _mapInstanceProperty$1(a).call(a, function (value) {
      return clone$3(value);
    });
  } else if (_typeof$1(a) === "object" && a !== null) {
    return deepObjectAssignNonentry({}, a);
  } else {
    return a;
  }
}
/**
 * Strip DELETE from given object.
 *
 * @param a - Object which may contain DELETE but won't after this is executed.
 */
function stripDelete(a) {
  for (var _i = 0, _Object$keys$1$1 = _Object$keys$1(a); _i < _Object$keys$1$1.length; _i++) {
    var prop = _Object$keys$1$1[_i];
    if (a[prop] === DELETE) {
      delete a[prop];
    } else if (_typeof$1(a[prop]) === "object" && a[prop] !== null) {
      stripDelete(a[prop]);
    }
  }
}

/**
 * Setup a mock hammer.js object, for unit testing.
 *
 * Inspiration: https://github.com/uber/deck.gl/pull/658
 *
 * @returns {{on: noop, off: noop, destroy: noop, emit: noop, get: get}}
 */
function hammerMock$1() {
  var noop = function noop() {};
  return {
    on: noop,
    off: noop,
    destroy: noop,
    emit: noop,
    get: function get() {
      return {
        set: noop
      };
    }
  };
}
var Hammer$1$1 = typeof window !== "undefined" ? window.Hammer || RealHammer$1 : function () {
  // hammer.js is only available in a browser, not in node.js. Replacing it with a mock object.
  return hammerMock$1();
};

/**
 * Turn an element into an clickToUse element.
 * When not active, the element has a transparent overlay. When the overlay is
 * clicked, the mode is changed to active.
 * When active, the element is displayed with a blue border around it, and
 * the interactive contents of the element can be used. When clicked outside
 * the element, the elements mode is changed to inactive.
 *
 * @param {Element} container
 * @class Activator
 */
function Activator$1$1(container) {
  var _this = this,
    _context3;
  this._cleanupQueue = [];
  this.active = false;
  this._dom = {
    container: container,
    overlay: document.createElement("div")
  };
  this._dom.overlay.classList.add("vis-overlay");
  this._dom.container.appendChild(this._dom.overlay);
  this._cleanupQueue.push(function () {
    _this._dom.overlay.parentNode.removeChild(_this._dom.overlay);
  });
  var hammer = Hammer$1$1(this._dom.overlay);
  hammer.on("tap", _bindInstanceProperty$1$1(_context3 = this._onTapOverlay).call(_context3, this));
  this._cleanupQueue.push(function () {
    hammer.destroy();
    // FIXME: cleaning up hammer instances doesn't work (Timeline not removed
    // from memory)
  });

// block all touch events (except tap)
  var events = ["tap", "doubletap", "press", "pinch", "pan", "panstart", "panmove", "panend"];
  _forEachInstanceProperty$1(events).call(events, function (event) {
    hammer.on(event, function (event) {
      event.srcEvent.stopPropagation();
    });
  });

// attach a click event to the window, in order to deactivate when clicking outside the timeline
  if (document && document.body) {
    this._onClick = function (event) {
      if (!_hasParent$1(event.target, container)) {
        _this.deactivate();
      }
    };
    document.body.addEventListener("click", this._onClick);
    this._cleanupQueue.push(function () {
      document.body.removeEventListener("click", _this._onClick);
    });
  }

// prepare escape key listener for deactivating when active
  this._escListener = function (event) {
    if ("key" in event ? event.key === "Escape" : event.keyCode === 27 /* the keyCode is for IE11 */) {
      _this.deactivate();
    }
  };
}

// turn into an event emitter
Emitter$1(Activator$1$1.prototype);

// The currently active activator
Activator$1$1.current = null;

/**
 * Destroy the activator. Cleans up all created DOM and event listeners
 */
Activator$1$1.prototype.destroy = function () {
  var _context4, _context5;
  this.deactivate();
  var _iterator2 = _createForOfIteratorHelper$3$1(_reverseInstanceProperty$1(_context4 = _spliceInstanceProperty$1(_context5 = this._cleanupQueue).call(_context5, 0)).call(_context4)),
    _step2;
  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var callback = _step2.value;
      callback();
    }
  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }
};

/**
 * Activate the element
 * Overlay is hidden, element is decorated with a blue shadow border
 */
Activator$1$1.prototype.activate = function () {
  // we allow only one active activator at a time
  if (Activator$1$1.current) {
    Activator$1$1.current.deactivate();
  }
  Activator$1$1.current = this;
  this.active = true;
  this._dom.overlay.style.display = "none";
  this._dom.container.classList.add("vis-active");
  this.emit("change");
  this.emit("activate");

// ugly hack: bind ESC after emitting the events, as the Network rebinds all
  // keyboard events on a 'change' event
  document.body.addEventListener("keydown", this._escListener);
};

/**
 * Deactivate the element
 * Overlay is displayed on top of the element
 */
Activator$1$1.prototype.deactivate = function () {
  this.active = false;
  this._dom.overlay.style.display = "block";
  this._dom.container.classList.remove("vis-active");
  document.body.removeEventListener("keydown", this._escListener);
  this.emit("change");
  this.emit("deactivate");
};

/**
 * Handle a tap event: activate the container
 *
 * @param {Event}  event   The event
 * @private
 */
Activator$1$1.prototype._onTapOverlay = function (event) {
  // activate the container
  this.activate();
  event.srcEvent.stopPropagation();
};

var isConstructor$5 = isConstructor$4$1;
var tryToString$1$1 = tryToString$6$1;

var $TypeError$3$1 = TypeError;

// `Assert: IsConstructor(argument) is true`
var aConstructor$2 = function (argument) {
  if (isConstructor$5(argument)) return argument;
  throw $TypeError$3$1(tryToString$1$1(argument) + ' is not a constructor');
};

var $$g$1 = _export$1;
var getBuiltIn$4$1 = getBuiltIn$f;
var apply$1$1 = functionApply$1;
var bind$9$1 = functionBind$1;
var aConstructor$1$1 = aConstructor$2;
var anObject$3$1 = anObject$d$1;
var isObject$6$1 = isObject$h$1;
var create$6$1 = objectCreate$1;
var fails$8$1 = fails$t$1;

var nativeConstruct$1 = getBuiltIn$4$1('Reflect', 'construct');
var ObjectPrototype$3 = Object.prototype;
var push$2$1 = [].push;

// `Reflect.construct` method
// https://tc39.es/ecma262/#sec-reflect.construct
// MS Edge supports only 2 arguments and argumentsList argument is optional
// FF Nightly sets third argument as `new.target`, but does not create `this` from it
var NEW_TARGET_BUG$1 = fails$8$1(function () {
  function F() { /* empty */ }
  return !(nativeConstruct$1(function () { /* empty */ }, [], F) instanceof F);
});

var ARGS_BUG$1 = !fails$8$1(function () {
  nativeConstruct$1(function () { /* empty */ });
});

var FORCED$1$1 = NEW_TARGET_BUG$1 || ARGS_BUG$1;

$$g$1({ target: 'Reflect', stat: true, forced: FORCED$1$1, sham: FORCED$1$1 }, {
  construct: function construct(Target, args /* , newTarget */) {
    aConstructor$1$1(Target);
    anObject$3$1(args);
    var newTarget = arguments.length < 3 ? Target : aConstructor$1$1(arguments[2]);
    if (ARGS_BUG$1 && !NEW_TARGET_BUG$1) return nativeConstruct$1(Target, args, newTarget);
    if (Target == newTarget) {
      // w/o altered newTarget, optimization for 0-4 arguments
      switch (args.length) {
        case 0: return new Target();
        case 1: return new Target(args[0]);
        case 2: return new Target(args[0], args[1]);
        case 3: return new Target(args[0], args[1], args[2]);
        case 4: return new Target(args[0], args[1], args[2], args[3]);
      }
      // w/o altered newTarget, lot of arguments case
      var $args = [null];
      apply$1$1(push$2$1, $args, args);
      return new (apply$1$1(bind$9$1, Target, $args))();
    }
    // with altered newTarget, not support built-in constructors
    var proto = newTarget.prototype;
    var instance = create$6$1(isObject$6$1(proto) ? proto : ObjectPrototype$3);
    var result = apply$1$1(Target, instance, args);
    return isObject$6$1(result) ? result : instance;
  }
});

var path$4$1 = path$o$1;

var construct$2$1 = path$4$1.Reflect.construct;

var parent$q$1 = construct$2$1;

var construct$1$1 = parent$q$1;

var construct$5 = construct$1$1;

var _Reflect$construct$1 = /*@__PURE__*/getDefaultExportFromCjs$2(construct$5);

function _assertThisInitialized$2(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }
  return self;
}

var parent$p$1 = create$8$1;

var create$5$1 = parent$p$1;

var parent$o$1 = create$5$1;

var create$4$1 = parent$o$1;

var create$3$1 = create$4$1;

var create$2$1 = create$3$1;

var _Object$create$2 = /*@__PURE__*/getDefaultExportFromCjs$2(create$2$1);

var $$f$1 = _export$1;
var setPrototypeOf$7 = objectSetPrototypeOf$1;

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
$$f$1({ target: 'Object', stat: true }, {
  setPrototypeOf: setPrototypeOf$7
});

var path$3$1 = path$o$1;

var setPrototypeOf$6$1 = path$3$1.Object.setPrototypeOf;

var parent$n$1 = setPrototypeOf$6$1;

var setPrototypeOf$5$1 = parent$n$1;

var parent$m$1 = setPrototypeOf$5$1;

var setPrototypeOf$4$1 = parent$m$1;

var parent$l$1 = setPrototypeOf$4$1;

var setPrototypeOf$3$1 = parent$l$1;

var setPrototypeOf$2$1 = setPrototypeOf$3$1;

var setPrototypeOf$1$1 = setPrototypeOf$2$1;

var _Object$setPrototypeOf$1 = /*@__PURE__*/getDefaultExportFromCjs$2(setPrototypeOf$1$1);

var parent$k$1 = bind$d$1;

var bind$8$1 = parent$k$1;

var parent$j$1 = bind$8$1;

var bind$7$1 = parent$j$1;

var bind$6$1 = bind$7$1;

var bind$5$1 = bind$6$1;

var _bindInstanceProperty$2 = /*@__PURE__*/getDefaultExportFromCjs$2(bind$5$1);

function _setPrototypeOf$1(o, p) {
  var _context;
  _setPrototypeOf$1 = _Object$setPrototypeOf$1 ? _bindInstanceProperty$2(_context = _Object$setPrototypeOf$1).call(_context) : function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };
  return _setPrototypeOf$1(o, p);
}

var parent$i$1 = getPrototypeOf$5$1;

var getPrototypeOf$4$1 = parent$i$1;

var parent$h$1 = getPrototypeOf$4$1;

var getPrototypeOf$3$1 = parent$h$1;

var getPrototypeOf$2$1 = getPrototypeOf$3$1;

var getPrototypeOf$1$1 = getPrototypeOf$2$1;

var _Object$getPrototypeOf$2 = /*@__PURE__*/getDefaultExportFromCjs$2(getPrototypeOf$1$1);

function _getPrototypeOf$1(o) {
  var _context;
  _getPrototypeOf$1 = _Object$setPrototypeOf$1 ? _bindInstanceProperty$2(_context = _Object$getPrototypeOf$2).call(_context) : function _getPrototypeOf(o) {
    return o.__proto__ || _Object$getPrototypeOf$2(o);
  };
  return _getPrototypeOf$1(o);
}

var regeneratorRuntime$1 = {exports: {}};

var _typeof$2 = {exports: {}};

(function (module) {
	var _Symbol = symbol$1$1;
	var _Symbol$iterator = iterator$1$1;
	function _typeof(obj) {
	  "@babel/helpers - typeof";

return (module.exports = _typeof = "function" == typeof _Symbol && "symbol" == typeof _Symbol$iterator ? function (obj) {
	    return typeof obj;
	  } : function (obj) {
	    return obj && "function" == typeof _Symbol && obj.constructor === _Symbol && obj !== _Symbol.prototype ? "symbol" : typeof obj;
	  }, module.exports.__esModule = true, module.exports["default"] = module.exports), _typeof(obj);
	}
	module.exports = _typeof, module.exports.__esModule = true, module.exports["default"] = module.exports; 
} (_typeof$2));

var _typeofExports = _typeof$2.exports;

var parent$g$1 = forEach$6$1;

var forEach$4$1 = parent$g$1;

var parent$f$1 = forEach$4$1;

var forEach$3$1 = parent$f$1;

var forEach$2$1 = forEach$3$1;

var forEach$1$1 = forEach$2$1;

var hasOwn$5$1 = hasOwnProperty_1$1;
var ownKeys$1$1 = ownKeys$7$1;
var getOwnPropertyDescriptorModule$3 = objectGetOwnPropertyDescriptor$1;
var definePropertyModule$5 = objectDefineProperty$1;

var isObject$5$1 = isObject$h$1;
var createNonEnumerableProperty$3$1 = createNonEnumerableProperty$9;

// `InstallErrorCause` abstract operation
// https://tc39.es/proposal-error-cause/#sec-errorobjects-install-error-cause
var installErrorCause$1 = function (O, options) {
  if (isObject$5$1(options) && 'cause' in options) {
    createNonEnumerableProperty$3$1(O, 'cause', options.cause);
  }
};

var uncurryThis$2$1 = functionUncurryThis$1;

var $Error$1 = Error;
var replace$2 = uncurryThis$2$1(''.replace);

var TEST = (function (arg) { return String($Error$1(arg).stack); })('zxcasd');
// eslint-disable-next-line redos/no-vulnerable -- safe
var V8_OR_CHAKRA_STACK_ENTRY = /\n\s*at [^:]*:[^\n]*/;
var IS_V8_OR_CHAKRA_STACK = V8_OR_CHAKRA_STACK_ENTRY.test(TEST);

var errorStackClear = function (stack, dropEntries) {
  if (IS_V8_OR_CHAKRA_STACK && typeof stack == 'string' && !$Error$1.prepareStackTrace) {
    while (dropEntries--) stack = replace$2(stack, V8_OR_CHAKRA_STACK_ENTRY, '');
  } return stack;
};

var fails$7$1 = fails$t$1;
var createPropertyDescriptor$1$1 = createPropertyDescriptor$7;

var errorStackInstallable = !fails$7$1(function () {
  var error = Error('a');
  if (!('stack' in error)) return true;
  // eslint-disable-next-line es/no-object-defineproperty -- safe
  Object.defineProperty(error, 'stack', createPropertyDescriptor$1$1(1, 7));
  return error.stack !== 7;
});

var createNonEnumerableProperty$2$1 = createNonEnumerableProperty$9;
var clearErrorStack = errorStackClear;
var ERROR_STACK_INSTALLABLE = errorStackInstallable;

// non-standard V8
var captureStackTrace = Error.captureStackTrace;

var errorStackInstall = function (error, C, stack, dropEntries) {
  if (ERROR_STACK_INSTALLABLE) {
    if (captureStackTrace) captureStackTrace(error, C);
    else createNonEnumerableProperty$2$1(error, 'stack', clearErrorStack(stack, dropEntries));
  }
};

var bind$4$1 = functionBindContext$1;
var call$6$1 = functionCall$1;
var anObject$2$1 = anObject$d$1;
var tryToString$7 = tryToString$6$1;
var isArrayIteratorMethod$3 = isArrayIteratorMethod$2$1;
var lengthOfArrayLike$1$1 = lengthOfArrayLike$c;
var isPrototypeOf$7$1 = objectIsPrototypeOf$1;
var getIterator$6 = getIterator$8;
var getIteratorMethod$a = getIteratorMethod$9$1;
var iteratorClose$3 = iteratorClose$2$1;

var $TypeError$2$1 = TypeError;

var Result$1 = function (stopped, result) {
  this.stopped = stopped;
  this.result = result;
};

var ResultPrototype$1 = Result$1.prototype;

var iterate$7 = function (iterable, unboundFunction, options) {
  var that = options && options.that;
  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  var IS_RECORD = !!(options && options.IS_RECORD);
  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  var INTERRUPTED = !!(options && options.INTERRUPTED);
  var fn = bind$4$1(unboundFunction, that);
  var iterator, iterFn, index, length, result, next, step;

var stop = function (condition) {
    if (iterator) iteratorClose$3(iterator, 'normal', condition);
    return new Result$1(true, condition);
  };

var callFn = function (value) {
    if (AS_ENTRIES) {
      anObject$2$1(value);
      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
    } return INTERRUPTED ? fn(value, stop) : fn(value);
  };

if (IS_RECORD) {
    iterator = iterable.iterator;
  } else if (IS_ITERATOR) {
    iterator = iterable;
  } else {
    iterFn = getIteratorMethod$a(iterable);
    if (!iterFn) throw $TypeError$2$1(tryToString$7(iterable) + ' is not iterable');
    // optimisation for array iterators
    if (isArrayIteratorMethod$3(iterFn)) {
      for (index = 0, length = lengthOfArrayLike$1$1(iterable); length > index; index++) {
        result = callFn(iterable[index]);
        if (result && isPrototypeOf$7$1(ResultPrototype$1, result)) return result;
      } return new Result$1(false);
    }
    iterator = getIterator$6(iterable, iterFn);
  }

next = IS_RECORD ? iterable.next : iterator.next;
  while (!(step = call$6$1(next, iterator)).done) {
    try {
      result = callFn(step.value);
    } catch (error) {
      iteratorClose$3(iterator, 'throw', error);
    }
    if (typeof result == 'object' && result && isPrototypeOf$7$1(ResultPrototype$1, result)) return result;
  } return new Result$1(false);
};

var toString$1$1 = toString$7$1;

var normalizeStringArgument$1 = function (argument, $default) {
  return argument === undefined ? arguments.length < 2 ? '' : $default : toString$1$1(argument);
};

var $$e$1 = _export$1;
var isPrototypeOf$6$1 = objectIsPrototypeOf$1;
var getPrototypeOf$a = objectGetPrototypeOf$1;
var setPrototypeOf$8 = objectSetPrototypeOf$1;
var copyConstructorProperties = copyConstructorProperties$1;
var create$1$2 = objectCreate$1;
var createNonEnumerableProperty$1$1 = createNonEnumerableProperty$9;
var createPropertyDescriptor$8 = createPropertyDescriptor$7;
var installErrorCause = installErrorCause$1;
var installErrorStack = errorStackInstall;
var iterate$6 = iterate$7;
var normalizeStringArgument = normalizeStringArgument$1;
var wellKnownSymbol$3$1 = wellKnownSymbol$m;

var TO_STRING_TAG$5 = wellKnownSymbol$3$1('toStringTag');
var $Error = Error;
var push$1$1 = [].push;

if (setPrototypeOf$8) setPrototypeOf$8($AggregateError, $Error);
else copyConstructorProperties($AggregateError, $Error, { name: true });

var AggregateErrorPrototype = $AggregateError.prototype = create$1$2($Error.prototype, {
  constructor: createPropertyDescriptor$8(1, $AggregateError),
  message: createPropertyDescriptor$8(1, ''),
  name: createPropertyDescriptor$8(1, 'AggregateError')
});

// `AggregateError` constructor
// https://tc39.es/ecma262/#sec-aggregate-error-constructor
$$e$1({ global: true, constructor: true, arity: 2 }, {
  AggregateError: $AggregateError
});

var getBuiltIn$3$1 = getBuiltIn$f;
var defineBuiltInAccessor$1$1 = defineBuiltInAccessor$3$1;
var wellKnownSymbol$2$1 = wellKnownSymbol$m;
var DESCRIPTORS$2$1 = descriptors$1;

var SPECIES$2$1 = wellKnownSymbol$2$1('species');

var setSpecies$2 = function (CONSTRUCTOR_NAME) {
  var Constructor = getBuiltIn$3$1(CONSTRUCTOR_NAME);

if (DESCRIPTORS$2$1 && Constructor && !Constructor[SPECIES$2$1]) {
    defineBuiltInAccessor$1$1(Constructor, SPECIES$2$1, {
      configurable: true,
      get: function () { return this; }
    });
  }
};

var isPrototypeOf$5$1 = objectIsPrototypeOf$1;

var $TypeError$1$1 = TypeError;

var anInstance$3$1 = function (it, Prototype) {
  if (isPrototypeOf$5$1(Prototype, it)) return it;
  throw $TypeError$1$1('Incorrect invocation');
};

var anObject$1$1 = anObject$d$1;
var aConstructor$3 = aConstructor$2;
var isNullOrUndefined$1$1 = isNullOrUndefined$5$1;
var wellKnownSymbol$1$1 = wellKnownSymbol$m;

var SPECIES$1$1 = wellKnownSymbol$1$1('species');

// `SpeciesConstructor` abstract operation
// https://tc39.es/ecma262/#sec-speciesconstructor
var speciesConstructor$2 = function (O, defaultConstructor) {
  var C = anObject$1$1(O).constructor;
  var S;
  return C === undefined || isNullOrUndefined$1$1(S = anObject$1$1(C)[SPECIES$1$1]) ? defaultConstructor : aConstructor$3(S);
};

var userAgent$4 = engineUserAgent$1;

// eslint-disable-next-line redos/no-vulnerable -- safe
var engineIsIos = /(?:ipad|iphone|ipod).*applewebkit/i.test(userAgent$4);

var global$6$1 = global$m;
var apply$7 = functionApply$1;
var bind$3$1 = functionBindContext$1;
var isCallable$4$1 = isCallable$m;
var hasOwn$4$1 = hasOwnProperty_1$1;
var fails$6$1 = fails$t$1;
var html$3 = html$2;
var arraySlice$1$1 = arraySlice$5$1;
var createElement$2 = documentCreateElement$1$1;
var validateArgumentsLength$3 = validateArgumentsLength$2;
var IS_IOS$1 = engineIsIos;
var IS_NODE$3 = engineIsNode$1;

var set$3$1 = global$6$1.setImmediate;
var clear$1 = global$6$1.clearImmediate;
var process$3 = global$6$1.process;
var Dispatch = global$6$1.Dispatch;
var Function$1$1 = global$6$1.Function;
var MessageChannel$1 = global$6$1.MessageChannel;
var String$1 = global$6$1.String;
var counter = 0;
var queue$2 = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var $location, defer, channel, port;

fails$6$1(function () {
  // Deno throws a ReferenceError on `location` access without `--location` flag
  $location = global$6$1.location;
});

var run = function (id) {
  if (hasOwn$4$1(queue$2, id)) {
    var fn = queue$2[id];
    delete queue$2[id];
    fn();
  }
};

var runner = function (id) {
  return function () {
    run(id);
  };
};

var eventListener = function (event) {
  run(event.data);
};

var globalPostMessageDefer = function (id) {
  // old engines have not location.origin
  global$6$1.postMessage(String$1(id), $location.protocol + '//' + $location.host);
};

// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
if (!set$3$1 || !clear$1) {
  set$3$1 = function setImmediate(handler) {
    validateArgumentsLength$3(arguments.length, 1);
    var fn = isCallable$4$1(handler) ? handler : Function$1$1(handler);
    var args = arraySlice$1$1(arguments, 1);
    queue$2[++counter] = function () {
      apply$7(fn, undefined, args);
    };
    defer(counter);
    return counter;
  };
  clear$1 = function clearImmediate(id) {
    delete queue$2[id];
  };
  // Node.js 0.8-
  if (IS_NODE$3) {
    defer = function (id) {
      process$3.nextTick(runner(id));
    };
  // Sphere (JS game engine) Dispatch API
  } else if (Dispatch && Dispatch.now) {
    defer = function (id) {
      Dispatch.now(runner(id));
    };
  // Browsers with MessageChannel, includes WebWorkers
  // except iOS - https://github.com/zloirock/core-js/issues/624
  } else if (MessageChannel$1 && !IS_IOS$1) {
    channel = new MessageChannel$1();
    port = channel.port2;
    channel.port1.onmessage = eventListener;
    defer = bind$3$1(port.postMessage, port);
  // Browsers with postMessage, skip WebWorkers
  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
  } else if (
    global$6$1.addEventListener &&
    isCallable$4$1(global$6$1.postMessage) &&
    !global$6$1.importScripts &&
    $location && $location.protocol !== 'file:' &&
    !fails$6$1(globalPostMessageDefer)
  ) {
    defer = globalPostMessageDefer;
    global$6$1.addEventListener('message', eventListener, false);
  // IE8-
  } else if (ONREADYSTATECHANGE in createElement$2('script')) {
    defer = function (id) {
      html$3.appendChild(createElement$2('script'))[ONREADYSTATECHANGE] = function () {
        html$3.removeChild(this);
        run(id);
      };
    };
  // Rest old browsers
  } else {
    defer = function (id) {
      setTimeout(runner(id), 0);
    };
  }
}

var task$1 = {
  set: set$3$1,
  clear: clear$1
};

var Queue$3 = function () {
  this.head = null;
  this.tail = null;
};

Queue$3.prototype = {
  add: function (item) {
    var entry = { item: item, next: null };
    var tail = this.tail;
    if (tail) tail.next = entry;
    else this.head = entry;
    this.tail = entry;
  },
  get: function () {
    var entry = this.head;
    if (entry) {
      var next = this.head = entry.next;
      if (next === null) this.tail = null;
      return entry.item;
    }
  }
};

var queue$1 = Queue$3;

var userAgent$3 = engineUserAgent$1;

var engineIsIosPebble = /ipad|iphone|ipod/i.test(userAgent$3) && typeof Pebble != 'undefined';

var userAgent$2$1 = engineUserAgent$1;

var engineIsWebosWebkit = /web0s(?!.*chrome)/i.test(userAgent$2$1);

var global$5$1 = global$m;
var bind$2$1 = functionBindContext$1;
var getOwnPropertyDescriptor$b = objectGetOwnPropertyDescriptor$1.f;
var macrotask = task$1.set;
var Queue$2 = queue$1;
var IS_IOS = engineIsIos;
var IS_IOS_PEBBLE = engineIsIosPebble;
var IS_WEBOS_WEBKIT = engineIsWebosWebkit;
var IS_NODE$2 = engineIsNode$1;

var MutationObserver$1 = global$5$1.MutationObserver || global$5$1.WebKitMutationObserver;
var document$2 = global$5$1.document;
var process$2 = global$5$1.process;
var Promise$1 = global$5$1.Promise;
// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`
var queueMicrotaskDescriptor = getOwnPropertyDescriptor$b(global$5$1, 'queueMicrotask');
var microtask$1 = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;
var notify$1, toggle, node, promise$6, then;

// modern engines have queueMicrotask method
if (!microtask$1) {
  var queue = new Queue$2();

// browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339
  // also except WebOS Webkit https://github.com/zloirock/core-js/issues/898
  if (!IS_IOS && !IS_NODE$2 && !IS_WEBOS_WEBKIT && MutationObserver$1 && document$2) {
    toggle = true;
    node = document$2.createTextNode('');
    new MutationObserver$1(flush).observe(node, { characterData: true });
    notify$1 = function () {
      node.data = toggle = !toggle;
    };
  // environments with maybe non-completely correct, but existent Promise
  } else if (!IS_IOS_PEBBLE && Promise$1 && Promise$1.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    promise$6 = Promise$1.resolve(undefined);
    // workaround of WebKit ~ iOS Safari 10.1 bug
    promise$6.constructor = Promise$1;
    then = bind$2$1(promise$6.then, promise$6);
    notify$1 = function () {
      then(flush);
    };
  // Node.js without promises
  } else if (IS_NODE$2) {
    notify$1 = function () {
      process$2.nextTick(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessage
  // - onreadystatechange
  // - setTimeout
  } else {
    // `webpack` dev server bug on IE global methods - use bind(fn, global)
    macrotask = bind$2$1(macrotask, global$5$1);
    notify$1 = function () {
      macrotask(flush);
    };
  }

microtask$1 = function (fn) {
    if (!queue.head) notify$1();
    queue.add(fn);
  };
}

var microtask_1 = microtask$1;

var hostReportErrors$1 = function (a, b) {
  try {
    // eslint-disable-next-line no-console -- safe
    arguments.length == 1 ? console.error(a) : console.error(a, b);
  } catch (error) { /* empty */ }
};

var perform$6 = function (exec) {
  try {
    return { error: false, value: exec() };
  } catch (error) {
    return { error: true, value: error };
  }
};

var global$4$1 = global$m;

var promiseNativeConstructor = global$4$1.Promise;

/* global Deno -- Deno case */

var engineIsDeno = typeof Deno == 'object' && Deno && typeof Deno.version == 'object';

var IS_DENO$1 = engineIsDeno;
var IS_NODE$1 = engineIsNode$1;

var engineIsBrowser = !IS_DENO$1 && !IS_NODE$1
  && typeof window == 'object'
  && typeof document == 'object';

var global$3$1 = global$m;
var NativePromiseConstructor$5 = promiseNativeConstructor;
var isCallable$3$1 = isCallable$m;
var isForced$3 = isForced_1$1;
var inspectSource$3 = inspectSource$2;
var wellKnownSymbol$n = wellKnownSymbol$m;
var IS_BROWSER = engineIsBrowser;
var IS_DENO = engineIsDeno;
var V8_VERSION$4 = engineV8Version$1;

var NativePromisePrototype$2 = NativePromiseConstructor$5 && NativePromiseConstructor$5.prototype;
var SPECIES$6 = wellKnownSymbol$n('species');
var SUBCLASSING = false;
var NATIVE_PROMISE_REJECTION_EVENT$1 = isCallable$3$1(global$3$1.PromiseRejectionEvent);

var promiseConstructorDetection = {
  CONSTRUCTOR: FORCED_PROMISE_CONSTRUCTOR$5,
  REJECTION_EVENT: NATIVE_PROMISE_REJECTION_EVENT$1,
  SUBCLASSING: SUBCLASSING
};

var newPromiseCapability$2 = {};

var aCallable$6$1 = aCallable$e;

var $TypeError$h = TypeError;

var PromiseCapability = function (C) {
  var resolve, reject;
  this.promise = new C(function ($$resolve, $$reject) {
    if (resolve !== undefined || reject !== undefined) throw $TypeError$h('Bad Promise constructor');
    resolve = $$resolve;
    reject = $$reject;
  });
  this.resolve = aCallable$6$1(resolve);
  this.reject = aCallable$6$1(reject);
};

// `NewPromiseCapability` abstract operation
// https://tc39.es/ecma262/#sec-newpromisecapability
newPromiseCapability$2.f = function (C) {
  return new PromiseCapability(C);
};

var $$d$1 = _export$1;
var IS_NODE$5 = engineIsNode$1;
var global$2$1 = global$m;
var call$5$1 = functionCall$1;
var defineBuiltIn$1$1 = defineBuiltIn$6;
var setToStringTag$1$1 = setToStringTag$7;
var setSpecies$1$1 = setSpecies$2;
var aCallable$5$1 = aCallable$e;
var isCallable$2$1 = isCallable$m;
var isObject$4$1 = isObject$h$1;
var anInstance$2$1 = anInstance$3$1;
var speciesConstructor$1 = speciesConstructor$2;
var task = task$1.set;
var microtask = microtask_1;
var hostReportErrors = hostReportErrors$1;
var perform$5 = perform$6;
var Queue$1 = queue$1;
var InternalStateModule$2$1 = internalState$1;
var NativePromiseConstructor$4 = promiseNativeConstructor;
var PromiseConstructorDetection = promiseConstructorDetection;
var newPromiseCapabilityModule$6 = newPromiseCapability$2;

var PROMISE = 'Promise';
var FORCED_PROMISE_CONSTRUCTOR$4 = PromiseConstructorDetection.CONSTRUCTOR;
var NATIVE_PROMISE_REJECTION_EVENT = PromiseConstructorDetection.REJECTION_EVENT;
var getInternalPromiseState = InternalStateModule$2$1.getterFor(PROMISE);
var setInternalState$2$1 = InternalStateModule$2$1.set;
var NativePromisePrototype$1 = NativePromiseConstructor$4 && NativePromiseConstructor$4.prototype;
var PromiseConstructor = NativePromiseConstructor$4;
var PromisePrototype = NativePromisePrototype$1;
var TypeError$1$1 = global$2$1.TypeError;
var document$1$1 = global$2$1.document;
var process$1$1 = global$2$1.process;
var newPromiseCapability$1 = newPromiseCapabilityModule$6.f;
var newGenericPromiseCapability = newPromiseCapability$1;

var DISPATCH_EVENT = !!(document$1$1 && document$1$1.createEvent && global$2$1.dispatchEvent);
var UNHANDLED_REJECTION = 'unhandledrejection';
var REJECTION_HANDLED = 'rejectionhandled';
var PENDING = 0;
var FULFILLED = 1;
var REJECTED = 2;
var HANDLED = 1;
var UNHANDLED = 2;

var Internal, OwnPromiseCapability, PromiseWrapper;

// helpers
var isThenable = function (it) {
  var then;
  return isObject$4$1(it) && isCallable$2$1(then = it.then) ? then : false;
};

var isUnhandled = function (state) {
  return state.rejection !== HANDLED && !state.parent;
};

var bind$1$2 = function (fn, state, unwrap) {
  return function (value) {
    fn(state, value, unwrap);
  };
};

var internalReject = function (state, value, unwrap) {
  if (state.done) return;
  state.done = true;
  if (unwrap) state = unwrap;
  state.value = value;
  state.state = REJECTED;
  notify(state, true);
};

// constructor polyfill
if (FORCED_PROMISE_CONSTRUCTOR$4) {
  // 25.4.3.1 Promise(executor)
  PromiseConstructor = function Promise(executor) {
    anInstance$2$1(this, PromisePrototype);
    aCallable$5$1(executor);
    call$5$1(Internal, this);
    var state = getInternalPromiseState(this);
    try {
      executor(bind$1$2(internalResolve, state), bind$1$2(internalReject, state));
    } catch (error) {
      internalReject(state, error);
    }
  };

PromisePrototype = PromiseConstructor.prototype;

// eslint-disable-next-line no-unused-vars -- required for `.length`
  Internal = function Promise(executor) {
    setInternalState$2$1(this, {
      type: PROMISE,
      done: false,
      notified: false,
      parent: false,
      reactions: new Queue$1(),
      rejection: false,
      state: PENDING,
      value: undefined
    });
  };

// `Promise.prototype.then` method
  // https://tc39.es/ecma262/#sec-promise.prototype.then
  Internal.prototype = defineBuiltIn$1$1(PromisePrototype, 'then', function then(onFulfilled, onRejected) {
    var state = getInternalPromiseState(this);
    var reaction = newPromiseCapability$1(speciesConstructor$1(this, PromiseConstructor));
    state.parent = true;
    reaction.ok = isCallable$2$1(onFulfilled) ? onFulfilled : true;
    reaction.fail = isCallable$2$1(onRejected) && onRejected;
    reaction.domain = IS_NODE$5 ? process$1$1.domain : undefined;
    if (state.state == PENDING) state.reactions.add(reaction);
    else microtask(function () {
      callReaction(reaction, state);
    });
    return reaction.promise;
  });

OwnPromiseCapability = function () {
    var promise = new Internal();
    var state = getInternalPromiseState(promise);
    this.promise = promise;
    this.resolve = bind$1$2(internalResolve, state);
    this.reject = bind$1$2(internalReject, state);
  };

newPromiseCapabilityModule$6.f = newPromiseCapability$1 = function (C) {
    return C === PromiseConstructor || C === PromiseWrapper
      ? new OwnPromiseCapability(C)
      : newGenericPromiseCapability(C);
  };
}

$$d$1({ global: true, constructor: true, wrap: true, forced: FORCED_PROMISE_CONSTRUCTOR$4 }, {
  Promise: PromiseConstructor
});

setToStringTag$1$1(PromiseConstructor, PROMISE, false, true);
setSpecies$1$1(PROMISE);

var NativePromiseConstructor$3 = promiseNativeConstructor;
var checkCorrectnessOfIteration$3 = checkCorrectnessOfIteration$2;
var FORCED_PROMISE_CONSTRUCTOR$3 = promiseConstructorDetection.CONSTRUCTOR;

var promiseStaticsIncorrectIteration = FORCED_PROMISE_CONSTRUCTOR$3 || !checkCorrectnessOfIteration$3(function (iterable) {
  NativePromiseConstructor$3.all(iterable).then(undefined, function () { /* empty */ });
});

var $$c$1 = _export$1;
var call$4$1 = functionCall$1;
var aCallable$4$1 = aCallable$e;
var newPromiseCapabilityModule$5 = newPromiseCapability$2;
var perform$4 = perform$6;
var iterate$5 = iterate$7;
var PROMISE_STATICS_INCORRECT_ITERATION$3 = promiseStaticsIncorrectIteration;

// `Promise.all` method
// https://tc39.es/ecma262/#sec-promise.all
$$c$1({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION$3 }, {
  all: function all(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule$5.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform$4(function () {
      var $promiseResolve = aCallable$4$1(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate$5(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        remaining++;
        call$4$1($promiseResolve, C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = value;
          --remaining || resolve(values);
        }, reject);
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});

var $$b$1 = _export$1;
var FORCED_PROMISE_CONSTRUCTOR$2 = promiseConstructorDetection.CONSTRUCTOR;
var NativePromiseConstructor$2 = promiseNativeConstructor;

NativePromiseConstructor$2 && NativePromiseConstructor$2.prototype;

// `Promise.prototype.catch` method
// https://tc39.es/ecma262/#sec-promise.prototype.catch
$$b$1({ target: 'Promise', proto: true, forced: FORCED_PROMISE_CONSTRUCTOR$2, real: true }, {
  'catch': function (onRejected) {
    return this.then(undefined, onRejected);
  }
});

var $$a$1 = _export$1;
var call$3$1 = functionCall$1;
var aCallable$3$1 = aCallable$e;
var newPromiseCapabilityModule$4 = newPromiseCapability$2;
var perform$3 = perform$6;
var iterate$4 = iterate$7;
var PROMISE_STATICS_INCORRECT_ITERATION$2 = promiseStaticsIncorrectIteration;

// `Promise.race` method
// https://tc39.es/ecma262/#sec-promise.race
$$a$1({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION$2 }, {
  race: function race(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule$4.f(C);
    var reject = capability.reject;
    var result = perform$3(function () {
      var $promiseResolve = aCallable$3$1(C.resolve);
      iterate$4(iterable, function (promise) {
        call$3$1($promiseResolve, C, promise).then(capability.resolve, reject);
      });
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});

var $$9$1 = _export$1;
var call$2$1 = functionCall$1;
var newPromiseCapabilityModule$3 = newPromiseCapability$2;
var FORCED_PROMISE_CONSTRUCTOR$1 = promiseConstructorDetection.CONSTRUCTOR;

// `Promise.reject` method
// https://tc39.es/ecma262/#sec-promise.reject
$$9$1({ target: 'Promise', stat: true, forced: FORCED_PROMISE_CONSTRUCTOR$1 }, {
  reject: function reject(r) {
    var capability = newPromiseCapabilityModule$3.f(this);
    call$2$1(capability.reject, undefined, r);
    return capability.promise;
  }
});

var anObject$e = anObject$d$1;
var isObject$3$2 = isObject$h$1;
var newPromiseCapability = newPromiseCapability$2;

var promiseResolve$2 = function (C, x) {
  anObject$e(C);
  if (isObject$3$2(x) && x.constructor === C) return x;
  var promiseCapability = newPromiseCapability.f(C);
  var resolve = promiseCapability.resolve;
  resolve(x);
  return promiseCapability.promise;
};

var $$8$1 = _export$1;
var getBuiltIn$2$1 = getBuiltIn$f;
var IS_PURE = isPure;
var NativePromiseConstructor$1 = promiseNativeConstructor;
var FORCED_PROMISE_CONSTRUCTOR = promiseConstructorDetection.CONSTRUCTOR;
var promiseResolve$1 = promiseResolve$2;

var PromiseConstructorWrapper = getBuiltIn$2$1('Promise');
var CHECK_WRAPPER = !FORCED_PROMISE_CONSTRUCTOR;

// `Promise.resolve` method
// https://tc39.es/ecma262/#sec-promise.resolve
$$8$1({ target: 'Promise', stat: true, forced: IS_PURE  }, {
  resolve: function resolve(x) {
    return promiseResolve$1(CHECK_WRAPPER && this === PromiseConstructorWrapper ? NativePromiseConstructor$1 : this, x);
  }
});

var $$7$1 = _export$1;
var call$1$1 = functionCall$1;
var aCallable$2$1 = aCallable$e;
var newPromiseCapabilityModule$2 = newPromiseCapability$2;
var perform$2 = perform$6;
var iterate$3$1 = iterate$7;
var PROMISE_STATICS_INCORRECT_ITERATION$1 = promiseStaticsIncorrectIteration;

// `Promise.allSettled` method
// https://tc39.es/ecma262/#sec-promise.allsettled
$$7$1({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION$1 }, {
  allSettled: function allSettled(iterable) {
    var C = this;
    var capability = newPromiseCapabilityModule$2.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform$2(function () {
      var promiseResolve = aCallable$2$1(C.resolve);
      var values = [];
      var counter = 0;
      var remaining = 1;
      iterate$3$1(iterable, function (promise) {
        var index = counter++;
        var alreadyCalled = false;
        remaining++;
        call$1$1(promiseResolve, C, promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = { status: 'fulfilled', value: value };
          --remaining || resolve(values);
        }, function (error) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[index] = { status: 'rejected', reason: error };
          --remaining || resolve(values);
        });
      });
      --remaining || resolve(values);
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});

var $$6$1 = _export$1;
var call$l = functionCall$1;
var aCallable$1$1 = aCallable$e;
var getBuiltIn$1$1 = getBuiltIn$f;
var newPromiseCapabilityModule$1 = newPromiseCapability$2;
var perform$1 = perform$6;
var iterate$2$1 = iterate$7;
var PROMISE_STATICS_INCORRECT_ITERATION = promiseStaticsIncorrectIteration;

var PROMISE_ANY_ERROR = 'No one promise resolved';

// `Promise.any` method
// https://tc39.es/ecma262/#sec-promise.any
$$6$1({ target: 'Promise', stat: true, forced: PROMISE_STATICS_INCORRECT_ITERATION }, {
  any: function any(iterable) {
    var C = this;
    var AggregateError = getBuiltIn$1$1('AggregateError');
    var capability = newPromiseCapabilityModule$1.f(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform$1(function () {
      var promiseResolve = aCallable$1$1(C.resolve);
      var errors = [];
      var counter = 0;
      var remaining = 1;
      var alreadyResolved = false;
      iterate$2$1(iterable, function (promise) {
        var index = counter++;
        var alreadyRejected = false;
        remaining++;
        call$l(promiseResolve, C, promise).then(function (value) {
          if (alreadyRejected || alreadyResolved) return;
          alreadyResolved = true;
          resolve(value);
        }, function (error) {
          if (alreadyRejected || alreadyResolved) return;
          alreadyRejected = true;
          errors[index] = error;
          --remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
        });
      });
      --remaining || reject(new AggregateError(errors, PROMISE_ANY_ERROR));
    });
    if (result.error) reject(result.value);
    return capability.promise;
  }
});

var $$5$1 = _export$1;
var NativePromiseConstructor = promiseNativeConstructor;
var fails$5$1 = fails$t$1;
var getBuiltIn$g = getBuiltIn$f;
var isCallable$1$1 = isCallable$m;
var speciesConstructor = speciesConstructor$2;
var promiseResolve = promiseResolve$2;

var NativePromisePrototype = NativePromiseConstructor && NativePromiseConstructor.prototype;

// Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829
var NON_GENERIC = !!NativePromiseConstructor && fails$5$1(function () {
  // eslint-disable-next-line unicorn/no-thenable -- required for testing
  NativePromisePrototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });
});

// `Promise.prototype.finally` method
// https://tc39.es/ecma262/#sec-promise.prototype.finally
$$5$1({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {
  'finally': function (onFinally) {
    var C = speciesConstructor(this, getBuiltIn$g('Promise'));
    var isFunction = isCallable$1$1(onFinally);
    return this.then(
      isFunction ? function (x) {
        return promiseResolve(C, onFinally()).then(function () { return x; });
      } : onFinally,
      isFunction ? function (e) {
        return promiseResolve(C, onFinally()).then(function () { throw e; });
      } : onFinally
    );
  }
});

var path$2$1 = path$o$1;

var promise$5 = path$2$1.Promise;

var parent$e$1 = promise$5;

var promise$4 = parent$e$1;

var parent$d$1 = promise$4;

var promise$3 = parent$d$1;

// TODO: Remove from `core-js@4`
var $$4$1 = _export$1;
var newPromiseCapabilityModule = newPromiseCapability$2;
var perform = perform$6;

// `Promise.try` method
// https://github.com/tc39/proposal-promise-try
$$4$1({ target: 'Promise', stat: true, forced: true }, {
  'try': function (callbackfn) {
    var promiseCapability = newPromiseCapabilityModule.f(this);
    var result = perform(callbackfn);
    (result.error ? promiseCapability.reject : promiseCapability.resolve)(result.value);
    return promiseCapability.promise;
  }
});

var parent$c$1 = promise$3;

// TODO: Remove from `core-js@4`

var promise$2 = parent$c$1;

var promise$1 = promise$2;

var promise = promise$1;

var parent$b$1 = reverse$5;

var reverse$3$1 = parent$b$1;

var parent$a$1 = reverse$3$1;

var reverse$2$1 = parent$a$1;

var reverse$1$1 = reverse$2$1;

var reverse$8 = reverse$1$1;

var regeneratorRuntimeExports = regeneratorRuntime$1.exports;

// TODO(Babel 8): Remove this file.

var runtime = regeneratorRuntimeExports();
var regenerator = runtime;

// Copied from https://github.com/facebook/regenerator/blob/main/packages/runtime/runtime.js#L736=
try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  if (typeof globalThis === "object") {
    globalThis.regeneratorRuntime = runtime;
  } else {
    Function("r", "regeneratorRuntime = r")(runtime);
  }
}

var _regeneratorRuntime = /*@__PURE__*/getDefaultExportFromCjs$2(regenerator);

var internalMetadata$1 = {exports: {}};

// FF26- bug: ArrayBuffers are non-extensible, but Object.isExtensible does not report it
var fails$4$1 = fails$t$1;

var fails$3$1 = fails$t$1;
var isObject$2$2 = isObject$h$1;
var classof$3$1 = classofRaw$2$1;
var ARRAY_BUFFER_NON_EXTENSIBLE$1 = arrayBufferNonExtensible$1;

// eslint-disable-next-line es/no-object-isextensible -- safe
var $isExtensible$1 = Object.isExtensible;
var FAILS_ON_PRIMITIVES$4 = fails$3$1(function () { $isExtensible$1(1); });

// `Object.isExtensible` method
// https://tc39.es/ecma262/#sec-object.isextensible
var objectIsExtensible$1 = (FAILS_ON_PRIMITIVES$4 || ARRAY_BUFFER_NON_EXTENSIBLE$1) ? function isExtensible(it) {
  if (!isObject$2$2(it)) return false;
  if (ARRAY_BUFFER_NON_EXTENSIBLE$1 && classof$3$1(it) == 'ArrayBuffer') return false;
  return $isExtensible$1 ? $isExtensible$1(it) : true;
} : $isExtensible$1;

var fails$2$1 = fails$t$1;

var freezing$1 = !fails$2$1(function () {
  // eslint-disable-next-line es/no-object-isextensible, es/no-object-preventextensions -- required for testing
  return Object.isExtensible(Object.preventExtensions({}));
});

var $$3$1 = _export$1;
var uncurryThis$1$1 = functionUncurryThis$1;
var hiddenKeys$7 = hiddenKeys$6$1;
var isObject$1$2 = isObject$h$1;
var hasOwn$3$1 = hasOwnProperty_1$1;
var defineProperty$1$1 = objectDefineProperty$1.f;
var getOwnPropertyNamesModule$3 = objectGetOwnPropertyNames$1;
var getOwnPropertyNamesExternalModule$1 = objectGetOwnPropertyNamesExternal$1;
var isExtensible$2 = objectIsExtensible$1;
var uid$5 = uid$4$1;
var FREEZING$2 = freezing$1;

var REQUIRED$1 = false;
var METADATA$1 = uid$5('meta');
var id$3 = 0;

var setMetadata$1 = function (it) {
  defineProperty$1$1(it, METADATA$1, { value: {
    objectID: 'O' + id$3++, // object ID
    weakData: {}          // weak collections IDs
  } });
};

var fastKey$1$1 = function (it, create) {
  // return a primitive with prefix
  if (!isObject$1$2(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!hasOwn$3$1(it, METADATA$1)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible$2(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMetadata$1(it);
  // return object ID
  } return it[METADATA$1].objectID;
};

var getWeakData$2 = function (it, create) {
  if (!hasOwn$3$1(it, METADATA$1)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible$2(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMetadata$1(it);
  // return the store of weak collections IDs
  } return it[METADATA$1].weakData;
};

// add metadata on freeze-family methods calling
var onFreeze$1 = function (it) {
  if (FREEZING$2 && REQUIRED$1 && isExtensible$2(it) && !hasOwn$3$1(it, METADATA$1)) setMetadata$1(it);
  return it;
};

var enable$1 = function () {
  meta$2.enable = function () { /* empty */ };
  REQUIRED$1 = true;
  var getOwnPropertyNames = getOwnPropertyNamesModule$3.f;
  var splice = uncurryThis$1$1([].splice);
  var test = {};
  test[METADATA$1] = 1;

// prevent exposing of metadata key
  if (getOwnPropertyNames(test).length) {
    getOwnPropertyNamesModule$3.f = function (it) {
      var result = getOwnPropertyNames(it);
      for (var i = 0, length = result.length; i < length; i++) {
        if (result[i] === METADATA$1) {
          splice(result, i, 1);
          break;
        }
      } return result;
    };

$$3$1({ target: 'Object', stat: true, forced: true }, {
      getOwnPropertyNames: getOwnPropertyNamesExternalModule$1.f
    });
  }
};

var meta$2 = internalMetadata$1.exports = {
  enable: enable$1,
  fastKey: fastKey$1$1,
  getWeakData: getWeakData$2,
  onFreeze: onFreeze$1
};

hiddenKeys$7[METADATA$1] = true;

var internalMetadataExports$1 = internalMetadata$1.exports;

var $$2$1 = _export$1;
var global$1$1 = global$m;
var InternalMetadataModule$2 = internalMetadataExports$1;
var fails$1$1 = fails$t$1;
var createNonEnumerableProperty$a = createNonEnumerableProperty$9;
var iterate$1$1 = iterate$7;
var anInstance$1$1 = anInstance$3$1;
var isCallable$n = isCallable$m;
var isObject$l = isObject$h$1;
var setToStringTag$8 = setToStringTag$7;
var defineProperty$g = objectDefineProperty$1.f;
var forEach$a = arrayIteration$1.forEach;
var DESCRIPTORS$1$1 = descriptors$1;
var InternalStateModule$1$1 = internalState$1;

var setInternalState$1$1 = InternalStateModule$1$1.set;
var internalStateGetterFor$1$1 = InternalStateModule$1$1.getterFor;

var collection$2$1 = function (CONSTRUCTOR_NAME, wrapper, common) {
  var IS_MAP = CONSTRUCTOR_NAME.indexOf('Map') !== -1;
  var IS_WEAK = CONSTRUCTOR_NAME.indexOf('Weak') !== -1;
  var ADDER = IS_MAP ? 'set' : 'add';
  var NativeConstructor = global$1$1[CONSTRUCTOR_NAME];
  var NativePrototype = NativeConstructor && NativeConstructor.prototype;
  var exported = {};
  var Constructor;

if (!DESCRIPTORS$1$1 || !isCallable$n(NativeConstructor)
    || !(IS_WEAK || NativePrototype.forEach && !fails$1$1(function () { new NativeConstructor().entries().next(); }))
  ) {
    // create collection constructor
    Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);
    InternalMetadataModule$2.enable();
  } else {
    Constructor = wrapper(function (target, iterable) {
      setInternalState$1$1(anInstance$1$1(target, Prototype), {
        type: CONSTRUCTOR_NAME,
        collection: new NativeConstructor()
      });
      if (iterable != undefined) iterate$1$1(iterable, target[ADDER], { that: target, AS_ENTRIES: IS_MAP });
    });

var Prototype = Constructor.prototype;

var getInternalState = internalStateGetterFor$1$1(CONSTRUCTOR_NAME);

forEach$a(['add', 'clear', 'delete', 'forEach', 'get', 'has', 'set', 'keys', 'values', 'entries'], function (KEY) {
      var IS_ADDER = KEY == 'add' || KEY == 'set';
      if (KEY in NativePrototype && !(IS_WEAK && KEY == 'clear')) {
        createNonEnumerableProperty$a(Prototype, KEY, function (a, b) {
          var collection = getInternalState(this).collection;
          if (!IS_ADDER && IS_WEAK && !isObject$l(a)) return KEY == 'get' ? undefined : false;
          var result = collection[KEY](a === 0 ? 0 : a, b);
          return IS_ADDER ? this : result;
        });
      }
    });

IS_WEAK || defineProperty$g(Prototype, 'size', {
      configurable: true,
      get: function () {
        return getInternalState(this).collection.size;
      }
    });
  }

setToStringTag$8(Constructor, CONSTRUCTOR_NAME, false, true);

exported[CONSTRUCTOR_NAME] = Constructor;
  $$2$1({ global: true, forced: true }, exported);

if (!IS_WEAK) common.setStrong(Constructor, CONSTRUCTOR_NAME, IS_MAP);

return Constructor;
};

var defineBuiltIn$7 = defineBuiltIn$6;

var defineBuiltIns$1$1 = function (target, src, options) {
  for (var key in src) {
    if (options && options.unsafe && target[key]) target[key] = src[key];
    else defineBuiltIn$7(target, key, src[key], options);
  } return target;
};

var create$d = objectCreate$1;
var defineBuiltInAccessor$4 = defineBuiltInAccessor$3$1;
var defineBuiltIns$4 = defineBuiltIns$1$1;
var bind$k = functionBindContext$1;
var anInstance$4 = anInstance$3$1;
var isNullOrUndefined$6 = isNullOrUndefined$5$1;
var iterate$8 = iterate$7;
var defineIterator$3 = iteratorDefine$1;
var createIterResultObject$4 = createIterResultObject$3$1;
var setSpecies$3 = setSpecies$2;
var DESCRIPTORS$j = descriptors$1;
var fastKey$2 = internalMetadataExports$1.fastKey;
var InternalStateModule$6 = internalState$1;

var setInternalState$6 = InternalStateModule$6.set;
var internalStateGetterFor$3 = InternalStateModule$6.getterFor;

var Prototype = Constructor.prototype;

var getInternalState = internalStateGetterFor$3(CONSTRUCTOR_NAME);

var getEntry = function (that, key) {
      var state = getInternalState(that);
      // fast case
      var index = fastKey$2(key);
      var entry;
      if (index !== 'F') return state.index[index];
      // frozen object case
      for (entry = state.first; entry; entry = entry.next) {
        if (entry.key == key) return entry;
      }
    };

defineBuiltIns$4(Prototype, {
      // `{ Map, Set }.prototype.clear()` methods
      // https://tc39.es/ecma262/#sec-map.prototype.clear
      // https://tc39.es/ecma262/#sec-set.prototype.clear
      clear: function clear() {
        var that = this;
        var state = getInternalState(that);
        var data = state.index;
        var entry = state.first;
        while (entry) {
          entry.removed = true;
          if (entry.previous) entry.previous = entry.previous.next = undefined;
          delete data[entry.index];
          entry = entry.next;
        }
        state.first = state.last = undefined;
        if (DESCRIPTORS$j) state.size = 0;
        else that.size = 0;
      },
      // `{ Map, Set }.prototype.delete(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.delete
      // https://tc39.es/ecma262/#sec-set.prototype.delete
      'delete': function (key) {
        var that = this;
        var state = getInternalState(that);
        var entry = getEntry(that, key);
        if (entry) {
          var next = entry.next;
          var prev = entry.previous;
          delete state.index[entry.index];
          entry.removed = true;
          if (prev) prev.next = next;
          if (next) next.previous = prev;
          if (state.first == entry) state.first = next;
          if (state.last == entry) state.last = prev;
          if (DESCRIPTORS$j) state.size--;
          else that.size--;
        } return !!entry;
      },
      // `{ Map, Set }.prototype.forEach(callbackfn, thisArg = undefined)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.foreach
      // https://tc39.es/ecma262/#sec-set.prototype.foreach
      forEach: function forEach(callbackfn /* , that = undefined */) {
        var state = getInternalState(this);
        var boundFunction = bind$k(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        var entry;
        while (entry = entry ? entry.next : state.first) {
          boundFunction(entry.value, entry.key, this);
          // revert to the last existing entry
          while (entry && entry.removed) entry = entry.previous;
        }
      },
      // `{ Map, Set}.prototype.has(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.has
      // https://tc39.es/ecma262/#sec-set.prototype.has
      has: function has(key) {
        return !!getEntry(this, key);
      }
    });

defineBuiltIns$4(Prototype, IS_MAP ? {
      // `Map.prototype.get(key)` method
      // https://tc39.es/ecma262/#sec-map.prototype.get
      get: function get(key) {
        var entry = getEntry(this, key);
        return entry && entry.value;
      },
      // `Map.prototype.set(key, value)` method
      // https://tc39.es/ecma262/#sec-map.prototype.set
      set: function set(key, value) {
        return define(this, key === 0 ? 0 : key, value);
      }
    } : {
      // `Set.prototype.add(value)` method
      // https://tc39.es/ecma262/#sec-set.prototype.add
      add: function add(value) {
        return define(this, value = value === 0 ? 0 : value, value);
      }
    });
    if (DESCRIPTORS$j) defineBuiltInAccessor$4(Prototype, 'size', {
      configurable: true,
      get: function () {
        return getInternalState(this).size;
      }
    });
    return Constructor;
  },
  setStrong: function (Constructor, CONSTRUCTOR_NAME, IS_MAP) {
    var ITERATOR_NAME = CONSTRUCTOR_NAME + ' Iterator';
    var getInternalCollectionState = internalStateGetterFor$3(CONSTRUCTOR_NAME);
    var getInternalIteratorState = internalStateGetterFor$3(ITERATOR_NAME);
    // `{ Map, Set }.prototype.{ keys, values, entries, @@iterator }()` methods
    // https://tc39.es/ecma262/#sec-map.prototype.entries
    // https://tc39.es/ecma262/#sec-map.prototype.keys
    // https://tc39.es/ecma262/#sec-map.prototype.values
    // https://tc39.es/ecma262/#sec-map.prototype-@@iterator
    // https://tc39.es/ecma262/#sec-set.prototype.entries
    // https://tc39.es/ecma262/#sec-set.prototype.keys
    // https://tc39.es/ecma262/#sec-set.prototype.values
    // https://tc39.es/ecma262/#sec-set.prototype-@@iterator
    defineIterator$3(Constructor, CONSTRUCTOR_NAME, function (iterated, kind) {
      setInternalState$6(this, {
        type: ITERATOR_NAME,
        target: iterated,
        state: getInternalCollectionState(iterated),
        kind: kind,
        last: undefined
      });
    }, function () {
      var state = getInternalIteratorState(this);
      var kind = state.kind;
      var entry = state.last;
      // revert to the last existing entry
      while (entry && entry.removed) entry = entry.previous;
      // get next entry
      if (!state.target || !(state.last = entry = entry ? entry.next : state.state.first)) {
        // or finish the iteration
        state.target = undefined;
        return createIterResultObject$4(undefined, true);
      }
      // return step by kind
      if (kind == 'keys') return createIterResultObject$4(entry.key, false);
      if (kind == 'values') return createIterResultObject$4(entry.value, false);
      return createIterResultObject$4([entry.key, entry.value], false);
    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);

// `{ Map, Set }.prototype[@@species]` accessors
    // https://tc39.es/ecma262/#sec-get-map-@@species
    // https://tc39.es/ecma262/#sec-get-set-@@species
    setSpecies$3(CONSTRUCTOR_NAME);
  }
};

var collection$1$1 = collection$2$1;
var collectionStrong$1$1 = collectionStrong$2$1;

// `Map` constructor
// https://tc39.es/ecma262/#sec-map-objects
collection$1$1('Map', function (init) {
  return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong$1$1);

var path$1$1 = path$o$1;

var map$2$1 = path$1$1.Map;

var parent$9$1 = map$2$1;

var map$1$2 = parent$9$1;

var map$8 = map$1$2;

var _Map$1 = /*@__PURE__*/getDefaultExportFromCjs$2(map$8);

var $$1$1 = _export$1;
var $some$1 = arrayIteration$1.some;
var arrayMethodIsStrict$1$1 = arrayMethodIsStrict$4$1;

var STRICT_METHOD$1$1 = arrayMethodIsStrict$1$1('some');

// `Array.prototype.some` method
// https://tc39.es/ecma262/#sec-array.prototype.some
$$1$1({ target: 'Array', proto: true, forced: !STRICT_METHOD$1$1 }, {
  some: function some(callbackfn /* , thisArg */) {
    return $some$1(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$4$1 = entryVirtual$f$1;

var some$3$1 = entryVirtual$4$1('Array').some;

var isPrototypeOf$4$1 = objectIsPrototypeOf$1;
var method$4$1 = some$3$1;

var ArrayPrototype$4$1 = Array.prototype;

var some$2$1 = function (it) {
  var own = it.some;
  return it === ArrayPrototype$4$1 || (isPrototypeOf$4$1(ArrayPrototype$4$1, it) && own === ArrayPrototype$4$1.some) ? method$4$1 : own;
};

var parent$8$1 = some$2$1;

var some$1$1 = parent$8$1;

var some$4 = some$1$1;

var _someInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(some$4);

var entryVirtual$3$1 = entryVirtual$f$1;

var keys$3$1 = entryVirtual$3$1('Array').keys;

var parent$7$1 = keys$3$1;

var keys$2$1 = parent$7$1;

var classof$2$1 = classof$d$1;
var hasOwn$2$1 = hasOwnProperty_1$1;
var isPrototypeOf$3$1 = objectIsPrototypeOf$1;
var method$3$1 = keys$2$1;

var ArrayPrototype$3$1 = Array.prototype;

var DOMIterables$2$1 = {
  DOMTokenList: true,
  NodeList: true
};

var keys$1$1 = function (it) {
  var own = it.keys;
  return it === ArrayPrototype$3$1 || (isPrototypeOf$3$1(ArrayPrototype$3$1, it) && own === ArrayPrototype$3$1.keys)
    || hasOwn$2$1(DOMIterables$2$1, classof$2$1(it)) ? method$3$1 : own;
};

var keys$8 = keys$1$1;

var _keysInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$2(keys$8);

var arraySlice$7 = arraySliceSimple$1;

var floor$2 = Math.floor;

var mergeSort$1 = function (array, comparefn) {
  var length = array.length;
  var middle = floor$2(length / 2);
  return length < 8 ? insertionSort$1(array, comparefn) : merge$4(
    array,
    mergeSort$1(arraySlice$7(array, 0, middle), comparefn),
    mergeSort$1(arraySlice$7(array, middle), comparefn),
    comparefn
  );
};

var insertionSort$1 = function (array, comparefn) {
  var length = array.length;
  var i = 1;
  var element, j;

while (i < length) {
    j = i;
    element = array[i];
    while (j && comparefn(array[j - 1], element) > 0) {
      array[j] = array[--j];
    }
    if (j !== i++) array[j] = element;
  } return array;
};

var merge$4 = function (array, left, right, comparefn) {
  var llength = left.length;
  var rlength = right.length;
  var lindex = 0;
  var rindex = 0;

while (lindex < llength || rindex < rlength) {
    array[lindex + rindex] = (lindex < llength && rindex < rlength)
      ? comparefn(left[lindex], right[rindex]) <= 0 ? left[lindex++] : right[rindex++]
      : lindex < llength ? left[lindex++] : right[rindex++];
  } return array;
};

var arraySort$1 = mergeSort$1;

var userAgent$1$1 = engineUserAgent$1;

var firefox$1 = userAgent$1$1.match(/firefox\/(\d+)/i);

var engineFfVersion$1 = !!firefox$1 && +firefox$1[1];

var UA$1 = engineUserAgent$1;

var engineIsIeOrEdge$1 = /MSIE|Trident/.test(UA$1);

var userAgent$6 = engineUserAgent$1;

var webkit$1 = userAgent$6.match(/AppleWebKit\/(\d+)\./);

var engineWebkitVersion$1 = !!webkit$1 && +webkit$1[1];

var $$P = _export$1;
var uncurryThis$z = functionUncurryThis$1;
var aCallable$f = aCallable$e;
var toObject$e = toObject$d$1;
var lengthOfArrayLike$d = lengthOfArrayLike$c;
var deletePropertyOrThrow$3 = deletePropertyOrThrow$2$1;
var toString$d = toString$7$1;
var fails$x = fails$t$1;
var internalSort$1 = arraySort$1;
var arrayMethodIsStrict$7 = arrayMethodIsStrict$4$1;
var FF$1 = engineFfVersion$1;
var IE_OR_EDGE$1 = engineIsIeOrEdge$1;
var V8$1 = engineV8Version$1;
var WEBKIT$1 = engineWebkitVersion$1;

var test$3 = [];
var nativeSort$1 = uncurryThis$z(test$3.sort);
var push$7 = uncurryThis$z(test$3.push);

// IE8-
var FAILS_ON_UNDEFINED$1 = fails$x(function () {
  test$3.sort(undefined);
});
// V8 bug
var FAILS_ON_NULL$1 = fails$x(function () {
  test$3.sort(null);
});
// Old WebKit
var STRICT_METHOD$4 = arrayMethodIsStrict$7('sort');

var STABLE_SORT$1 = !fails$x(function () {
  // feature detection can be too slow, so check engines versions
  if (V8$1) return V8$1 < 70;
  if (FF$1 && FF$1 > 3) return;
  if (IE_OR_EDGE$1) return true;
  if (WEBKIT$1) return WEBKIT$1 < 603;

var result = '';
  var code, chr, value, index;

// generate an array with more 512 elements (Chakra and old V8 fails only in this case)
  for (code = 65; code < 76; code++) {
    chr = String.fromCharCode(code);

switch (code) {
      case 66: case 69: case 70: case 72: value = 3; break;
      case 68: case 71: value = 4; break;
      default: value = 2;
    }

for (index = 0; index < 47; index++) {
      test$3.push({ k: chr + index, v: value });
    }
  }

test$3.sort(function (a, b) { return b.v - a.v; });

for (index = 0; index < test$3.length; index++) {
    chr = test$3[index].k.charAt(0);
    if (result.charAt(result.length - 1) !== chr) result += chr;
  }

return result !== 'DGBEFHACIJK';
});

var FORCED$a = FAILS_ON_UNDEFINED$1 || !FAILS_ON_NULL$1 || !STRICT_METHOD$4 || !STABLE_SORT$1;

var getSortCompare$1 = function (comparefn) {
  return function (x, y) {
    if (y === undefined) return -1;
    if (x === undefined) return 1;
    if (comparefn !== undefined) return +comparefn(x, y) || 0;
    return toString$d(x) > toString$d(y) ? 1 : -1;
  };
};

// `Array.prototype.sort` method
// https://tc39.es/ecma262/#sec-array.prototype.sort
$$P({ target: 'Array', proto: true, forced: FORCED$a }, {
  sort: function sort(comparefn) {
    if (comparefn !== undefined) aCallable$f(comparefn);

var array = toObject$e(this);

if (STABLE_SORT$1) return comparefn === undefined ? nativeSort$1(array) : nativeSort$1(array, comparefn);

var items = [];
    var arrayLength = lengthOfArrayLike$d(array);
    var itemsLength, index;

for (index = 0; index < arrayLength; index++) {
      if (index in array) push$7(items, array[index]);
    }

internalSort$1(items, getSortCompare$1(comparefn));

itemsLength = lengthOfArrayLike$d(items);
    index = 0;

while (index < itemsLength) array[index] = items[index++];
    while (index < arrayLength) deletePropertyOrThrow$3(array, index++);

return array;
  }
});

var entryVirtual$2$1 = entryVirtual$f$1;

var sort$3$1 = entryVirtual$2$1('Array').sort;

var isPrototypeOf$2$1 = objectIsPrototypeOf$1;
var method$2$1 = sort$3$1;

var ArrayPrototype$2$1 = Array.prototype;

var sort$2$1 = function (it) {
  var own = it.sort;
  return it === ArrayPrototype$2$1 || (isPrototypeOf$2$1(ArrayPrototype$2$1, it) && own === ArrayPrototype$2$1.sort) ? method$2$1 : own;
};

var parent$6$1 = sort$2$1;

var sort$1$1 = parent$6$1;

var sort$5 = sort$1$1;

var _sortInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(sort$5);

var entryVirtual$1$1 = entryVirtual$f$1;

var values$3$1 = entryVirtual$1$1('Array').values;

var parent$5$1 = values$3$1;

var values$2$1 = parent$5$1;

var classof$1$1 = classof$d$1;
var hasOwn$1$1 = hasOwnProperty_1$1;
var isPrototypeOf$1$1 = objectIsPrototypeOf$1;
var method$1$1 = values$2$1;

var ArrayPrototype$1$1 = Array.prototype;

var DOMIterables$1$1 = {
  DOMTokenList: true,
  NodeList: true
};

var values$1$1 = function (it) {
  var own = it.values;
  return it === ArrayPrototype$1$1 || (isPrototypeOf$1$1(ArrayPrototype$1$1, it) && own === ArrayPrototype$1$1.values)
    || hasOwn$1$1(DOMIterables$1$1, classof$1$1(it)) ? method$1$1 : own;
};

var values$7 = values$1$1;

var _valuesInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$2(values$7);

var iterator$7 = iterator$5$1;

var _Symbol$iterator$1 = /*@__PURE__*/getDefaultExportFromCjs$2(iterator$7);

var entryVirtual$j = entryVirtual$f$1;

var entries$3 = entryVirtual$j('Array').entries;

var parent$4$1 = entries$3;

var entries$2 = parent$4$1;

var classof$g = classof$d$1;
var hasOwn$k = hasOwnProperty_1$1;
var isPrototypeOf$l = objectIsPrototypeOf$1;
var method$g = entries$2;

var ArrayPrototype$g = Array.prototype;

var DOMIterables$5 = {
  DOMTokenList: true,
  NodeList: true
};

var entries$1 = function (it) {
  var own = it.entries;
  return it === ArrayPrototype$g || (isPrototypeOf$l(ArrayPrototype$g, it) && own === ArrayPrototype$g.entries)
    || hasOwn$k(DOMIterables$5, classof$g(it)) ? method$g : own;
};

var entries = entries$1;

var _entriesInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$2(entries);

// Unique ID creation requires a high quality random # generator. In the browser we therefore
// require the crypto API and do not support built-in fallback to lower quality random number
// generators (like Math.random()).
let getRandomValues$1;
const rnds8$1 = new Uint8Array(16);
function rng$1() {
  // lazy load so that environments that need to polyfill have a chance to do so
  if (!getRandomValues$1) {
    // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation.
    getRandomValues$1 = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto);

if (!getRandomValues$1) {
      throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
    }
  }

return getRandomValues$1(rnds8$1);
}

/**
 * Convert array of 16 byte values to UUID string format of the form:
 * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
 */

const byteToHex$1 = [];

for (let i = 0; i < 256; ++i) {
  byteToHex$1.push((i + 0x100).toString(16).slice(1));
}

function unsafeStringify$1(arr, offset = 0) {
  // Note: Be careful editing this code!  It's been tuned for performance
  // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
  return byteToHex$1[arr[offset + 0]] + byteToHex$1[arr[offset + 1]] + byteToHex$1[arr[offset + 2]] + byteToHex$1[arr[offset + 3]] + '-' + byteToHex$1[arr[offset + 4]] + byteToHex$1[arr[offset + 5]] + '-' + byteToHex$1[arr[offset + 6]] + byteToHex$1[arr[offset + 7]] + '-' + byteToHex$1[arr[offset + 8]] + byteToHex$1[arr[offset + 9]] + '-' + byteToHex$1[arr[offset + 10]] + byteToHex$1[arr[offset + 11]] + byteToHex$1[arr[offset + 12]] + byteToHex$1[arr[offset + 13]] + byteToHex$1[arr[offset + 14]] + byteToHex$1[arr[offset + 15]];
}

const randomUUID$1 = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto);
var native$1 = {
  randomUUID: randomUUID$1
};

function v4$1(options, buf, offset) {
  if (native$1.randomUUID && !buf && !options) {
    return native$1.randomUUID();
  }

options = options || {};
  const rnds = options.random || (options.rng || rng$1)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`

rnds[6] = rnds[6] & 0x0f | 0x40;
  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided

return unsafeStringify$1(rnds);
}

/**
 * Determine whether a value can be used as an id.
 *
 * @param value - Input value of unknown type.
 * @returns True if the value is valid id, false otherwise.
 */
function isId(value) {
  return typeof value === "string" || typeof value === "number";
}

/**
 * A queue.
 *
 * @typeParam T - The type of method names to be replaced by queued versions.
 */
var Queue = /*#__PURE__*/function () {
  /** Delay in milliseconds. If defined the queue will be periodically flushed. */

/** Maximum number of entries in the queue before it will be flushed. */

/**
   * Construct a new Queue.
   *
   * @param options - Queue configuration.
   */
  function Queue(options) {
    _classCallCheck$1(this, Queue);
    _defineProperty$1(this, "delay", void 0);
    _defineProperty$1(this, "max", void 0);
    _defineProperty$1(this, "_queue", []);
    _defineProperty$1(this, "_timeout", null);
    _defineProperty$1(this, "_extended", null);
    // options
    this.delay = null;
    this.max = Infinity;
    this.setOptions(options);
  }
  /**
   * Update the configuration of the queue.
   *
   * @param options - Queue configuration.
   */
  _createClass$1(Queue, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options && typeof options.delay !== "undefined") {
        this.delay = options.delay;
      }
      if (options && typeof options.max !== "undefined") {
        this.max = options.max;
      }
      this._flushIfNeeded();
    }
    /**
     * Extend an object with queuing functionality.
     * The object will be extended with a function flush, and the methods provided in options.replace will be replaced with queued ones.
     *
     * @param object - The object to be extended.
     * @param options - Additional options.
     * @returns The created queue.
     */
  }, {
    key: "destroy",
    value:
    /**
     * Destroy the queue. The queue will first flush all queued actions, and in case it has extended an object, will restore the original object.
     */
    function destroy() {
      this.flush();
      if (this._extended) {
        var object = this._extended.object;
        var methods = this._extended.methods;
        for (var i = 0; i < methods.length; i++) {
          var method = methods[i];
          if (method.original) {
            // @TODO: better solution?
            object[method.name] = method.original;
          } else {
            // @TODO: better solution?
            delete object[method.name];
          }
        }
        this._extended = null;
      }
    }
    /**
     * Replace a method on an object with a queued version.
     *
     * @param object - Object having the method.
     * @param method - The method name.
     */
  }, {
    key: "replace",
    value: function replace(object, method) {
      /* eslint-disable-next-line @typescript-eslint/no-this-alias -- Function this is necessary in the function bellow, so class this has to be saved into a variable here. */
      var me = this;
      var original = object[method];
      if (!original) {
        throw new Error("Method " + method + " undefined");
      }
      object[method] = function () {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }
        // add this call to the queue
        me.queue({
          args: args,
          fn: original,
          context: this
        });
      };
    }
    /**
     * Queue a call.
     *
     * @param entry - The function or entry to be queued.
     */
  }, {
    key: "queue",
    value: function queue(entry) {
      if (typeof entry === "function") {
        this._queue.push({
          fn: entry
        });
      } else {
        this._queue.push(entry);
      }
      this._flushIfNeeded();
    }
    /**
     * Check whether the queue needs to be flushed.
     */
  }, {
    key: "_flushIfNeeded",
    value: function _flushIfNeeded() {
      var _this = this;
      // flush when the maximum is exceeded.
      if (this._queue.length > this.max) {
        this.flush();
      }
      // flush after a period of inactivity when a delay is configured
      if (this._timeout != null) {
        clearTimeout(this._timeout);
        this._timeout = null;
      }
      if (this.queue.length > 0 && typeof this.delay === "number") {
        this._timeout = _setTimeout$1(function () {
          _this.flush();
        }, this.delay);
      }
    }
    /**
     * Flush all queued calls
     */
  }, {
    key: "flush",
    value: function flush() {
      var _context, _context2;
      _forEachInstanceProperty$1(_context = _spliceInstanceProperty$1(_context2 = this._queue).call(_context2, 0)).call(_context, function (entry) {
        entry.fn.apply(entry.context || entry.fn, entry.args || []);
      });
    }
  }], [{
    key: "extend",
    value: function extend(object, options) {
      var queue = new Queue(options);
      if (object.flush !== undefined) {
        throw new Error("Target object already has a property flush");
      }
      object.flush = function () {
        queue.flush();
      };
      var methods = [{
        name: "flush",
        original: undefined
      }];
      if (options && options.replace) {
        for (var i = 0; i < options.replace.length; i++) {
          var name = options.replace[i];
          methods.push({
            name: name,
            // @TODO: better solution?
            original: object[name]
          });
          // @TODO: better solution?
          queue.replace(object, name);
        }
      }
      queue._extended = {
        object: object,
        methods: methods
      };
      return queue;
    }
  }]);
  return Queue;
}();

/**
 * {@link DataSet} code that can be reused in {@link DataView} or other similar implementations of {@link DataInterface}.
 *
 * @typeParam Item - Item type that may or may not have an id.
 * @typeParam IdProp - Name of the property that contains the id.
 */
var DataSetPart = /*#__PURE__*/function () {
  function DataSetPart() {
    _classCallCheck$1(this, DataSetPart);
    _defineProperty$1(this, "_subscribers", {
      "*": [],
      add: [],
      remove: [],
      update: []
    });
    /**
     * @deprecated Use on instead (PS: DataView.subscribe === DataView.on).
     */
    _defineProperty$1(this, "subscribe", DataSetPart.prototype.on);
    /**
     * @deprecated Use off instead (PS: DataView.unsubscribe === DataView.off).
     */
    _defineProperty$1(this, "unsubscribe", DataSetPart.prototype.off);
  }
  _createClass$1(DataSetPart, [{
    key: "_trigger",
    value:
    /**
     * Trigger an event
     *
     * @param event - Event name.
     * @param payload - Event payload.
     * @param senderId - Id of the sender.
     */
    function _trigger(event, payload, senderId) {
      var _context, _context2;
      if (event === "*") {
        throw new Error("Cannot trigger event *");
      }
      _forEachInstanceProperty$1(_context = _concatInstanceProperty$1(_context2 = []).call(_context2, _toConsumableArray$1(this._subscribers[event]), _toConsumableArray$1(this._subscribers["*"]))).call(_context, function (subscriber) {
        subscriber(event, payload, senderId != null ? senderId : null);
      });
    }
    /**
     * Subscribe to an event, add an event listener.
     *
     * @remarks Non-function callbacks are ignored.
     * @param event - Event name.
     * @param callback - Callback method.
     */
  }, {
    key: "on",
    value: function on(event, callback) {
      if (typeof callback === "function") {
        this._subscribers[event].push(callback);
      }
      // @TODO: Maybe throw for invalid callbacks?
    }
    /**
     * Unsubscribe from an event, remove an event listener.
     *
     * @remarks If the same callback was subscribed more than once **all** occurences will be removed.
     * @param event - Event name.
     * @param callback - Callback method.
     */
  }, {
    key: "off",
    value: function off(event, callback) {
      var _context3;
      this._subscribers[event] = _filterInstanceProperty$1(_context3 = this._subscribers[event]).call(_context3, function (subscriber) {
        return subscriber !== callback;
      });
    }
  }]);
  return DataSetPart;
}();

var collection$4 = collection$2$1;
var collectionStrong$3 = collectionStrong$2$1;

// `Set` constructor
// https://tc39.es/ecma262/#sec-set-objects
collection$4('Set', function (init) {
  return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong$3);

var path$z = path$o$1;

var set$2$1 = path$z.Set;

var parent$3$1 = set$2$1;

var set$1$1 = parent$3$1;

var set$5 = set$1$1;

var _Set$1 = /*@__PURE__*/getDefaultExportFromCjs$2(set$5);

var getIterator$5 = getIterator$8;

var getIterator_1 = getIterator$5;

var parent$2$1 = getIterator_1;

var getIterator$4 = parent$2$1;

var parent$1$1 = getIterator$4;

var getIterator$3 = parent$1$1;

var parent$1c = getIterator$3;

var getIterator$2$1 = parent$1c;

var getIterator$1$1 = getIterator$2$1;

var getIterator$9 = getIterator$1$1;

var _getIterator = /*@__PURE__*/getDefaultExportFromCjs$2(getIterator$9);

var _Symbol$iterator$3;
function _createForOfIteratorHelper$2$1(o, allowArrayLike) { var it = typeof _Symbol$2 !== "undefined" && _getIteratorMethod$1(o) || o["@@iterator"]; if (!it) { if (_Array$isArray$2(o) || (it = _unsupportedIterableToArray$2$1(o)) || allowArrayLike) { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray$2$1(o, minLen) { var _context10; if (!o) return; if (typeof o === "string") return _arrayLikeToArray$2$1(o, minLen); var n = _sliceInstanceProperty$2(_context10 = Object.prototype.toString.call(o)).call(_context10, 8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return _Array$from$1$1(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$2$1(o, minLen); }
function _arrayLikeToArray$2$1(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
_Symbol$iterator$3 = _Symbol$iterator$1;
/**
 * Data stream
 *
 * @remarks
 * {@link DataStream} offers an always up to date stream of items from a {@link DataSet} or {@link DataView}.
 * That means that the stream is evaluated at the time of iteration, conversion to another data type or when {@link cache} is called, not when the {@link DataStream} was created.
 * Multiple invocations of for example {@link toItemArray} may yield different results (if the data source like for example {@link DataSet} gets modified).
 * @typeParam Item - The item type this stream is going to work with.
 */
var DataStream = /*#__PURE__*/function () {
  /**
   * Create a new data stream.
   *
   * @param pairs - The id, item pairs.
   */
  function DataStream(pairs) {
    _classCallCheck$1(this, DataStream);
    _defineProperty$1(this, "_pairs", void 0);
    this._pairs = pairs;
  }
  /**
   * Return an iterable of key, value pairs for every entry in the stream.
   */
  _createClass$1(DataStream, [{
    key: _Symbol$iterator$3,
    value:
    /*#__PURE__*/
    _regeneratorRuntime.mark(function value() {
      var _iterator, _step, _step$value, id, item;
      return _regeneratorRuntime.wrap(function value$(_context) {
        while (1) switch (_context.prev = _context.next) {
          case 0:
            _iterator = _createForOfIteratorHelper$2$1(this._pairs);
            _context.prev = 1;
            _iterator.s();
          case 3:
            if ((_step = _iterator.n()).done) {
              _context.next = 9;
              break;
            }
            _step$value = _slicedToArray$1(_step.value, 2), id = _step$value[0], item = _step$value[1];
            _context.next = 7;
            return [id, item];
          case 7:
            _context.next = 3;
            break;
          case 9:
            _context.next = 14;
            break;
          case 11:
            _context.prev = 11;
            _context.t0 = _context["catch"](1);
            _iterator.e(_context.t0);
          case 14:
            _context.prev = 14;
            _iterator.f();
            return _context.finish(14);
          case 17:
          case "end":
            return _context.stop();
        }
      }, value, this, [[1, 11, 14, 17]]);
    })
    /**
     * Return an iterable of key, value pairs for every entry in the stream.
     */
  }, {
    key: "entries",
    value:
    /*#__PURE__*/
    _regeneratorRuntime.mark(function entries() {
      var _iterator2, _step2, _step2$value, id, item;
      return _regeneratorRuntime.wrap(function entries$(_context2) {
        while (1) switch (_context2.prev = _context2.next) {
          case 0:
            _iterator2 = _createForOfIteratorHelper$2$1(this._pairs);
            _context2.prev = 1;
            _iterator2.s();
          case 3:
            if ((_step2 = _iterator2.n()).done) {
              _context2.next = 9;
              break;
            }
            _step2$value = _slicedToArray$1(_step2.value, 2), id = _step2$value[0], item = _step2$value[1];
            _context2.next = 7;
            return [id, item];
          case 7:
            _context2.next = 3;
            break;
          case 9:
            _context2.next = 14;
            break;
          case 11:
            _context2.prev = 11;
            _context2.t0 = _context2["catch"](1);
            _iterator2.e(_context2.t0);
          case 14:
            _context2.prev = 14;
            _iterator2.f();
            return _context2.finish(14);
          case 17:
          case "end":
            return _context2.stop();
        }
      }, entries, this, [[1, 11, 14, 17]]);
    })
    /**
     * Return an iterable of keys in the stream.
     */
  }, {
    key: "keys",
    value:
    /*#__PURE__*/
    _regeneratorRuntime.mark(function keys() {
      var _iterator3, _step3, _step3$value, id;
      return _regeneratorRuntime.wrap(function keys$(_context3) {
        while (1) switch (_context3.prev = _context3.next) {
          case 0:
            _iterator3 = _createForOfIteratorHelper$2$1(this._pairs);
            _context3.prev = 1;
            _iterator3.s();
          case 3:
            if ((_step3 = _iterator3.n()).done) {
              _context3.next = 9;
              break;
            }
            _step3$value = _slicedToArray$1(_step3.value, 1), id = _step3$value[0];
            _context3.next = 7;
            return id;
          case 7:
            _context3.next = 3;
            break;
          case 9:
            _context3.next = 14;
            break;
          case 11:
            _context3.prev = 11;
            _context3.t0 = _context3["catch"](1);
            _iterator3.e(_context3.t0);
          case 14:
            _context3.prev = 14;
            _iterator3.f();
            return _context3.finish(14);
          case 17:
          case "end":
            return _context3.stop();
        }
      }, keys, this, [[1, 11, 14, 17]]);
    })
    /**
     * Return an iterable of values in the stream.
     */
  }, {
    key: "values",
    value:
    /*#__PURE__*/
    _regeneratorRuntime.mark(function values() {
      var _iterator4, _step4, _step4$value, item;
      return _regeneratorRuntime.wrap(function values$(_context4) {
        while (1) switch (_context4.prev = _context4.next) {
          case 0:
            _iterator4 = _createForOfIteratorHelper$2$1(this._pairs);
            _context4.prev = 1;
            _iterator4.s();
          case 3:
            if ((_step4 = _iterator4.n()).done) {
              _context4.next = 9;
              break;
            }
            _step4$value = _slicedToArray$1(_step4.value, 2), item = _step4$value[1];
            _context4.next = 7;
            return item;
          case 7:
            _context4.next = 3;
            break;
          case 9:
            _context4.next = 14;
            break;
          case 11:
            _context4.prev = 11;
            _context4.t0 = _context4["catch"](1);
            _iterator4.e(_context4.t0);
          case 14:
            _context4.prev = 14;
            _iterator4.f();
            return _context4.finish(14);
          case 17:
          case "end":
            return _context4.stop();
        }
      }, values, this, [[1, 11, 14, 17]]);
    })
    /**
     * Return an array containing all the ids in this stream.
     *
     * @remarks
     * The array may contain duplicities.
     * @returns The array with all ids from this stream.
     */
  }, {
    key: "toIdArray",
    value: function toIdArray() {
      var _context5;
      return _mapInstanceProperty$1(_context5 = _toConsumableArray$1(this._pairs)).call(_context5, function (pair) {
        return pair[0];
      });
    }
    /**
     * Return an array containing all the items in this stream.
     *
     * @remarks
     * The array may contain duplicities.
     * @returns The array with all items from this stream.
     */
  }, {
    key: "toItemArray",
    value: function toItemArray() {
      var _context6;
      return _mapInstanceProperty$1(_context6 = _toConsumableArray$1(this._pairs)).call(_context6, function (pair) {
        return pair[1];
      });
    }
    /**
     * Return an array containing all the entries in this stream.
     *
     * @remarks
     * The array may contain duplicities.
     * @returns The array with all entries from this stream.
     */
  }, {
    key: "toEntryArray",
    value: function toEntryArray() {
      return _toConsumableArray$1(this._pairs);
    }
    /**
     * Return an object map containing all the items in this stream accessible by ids.
     *
     * @remarks
     * In case of duplicate ids (coerced to string so `7 == '7'`) the last encoutered appears in the returned object.
     * @returns The object map of all id → item pairs from this stream.
     */
  }, {
    key: "toObjectMap",
    value: function toObjectMap() {
      var map = _Object$create$1$1(null);
      var _iterator5 = _createForOfIteratorHelper$2$1(this._pairs),
        _step5;
      try {
        for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
          var _step5$value = _slicedToArray$1(_step5.value, 2),
            id = _step5$value[0],
            item = _step5$value[1];
          map[id] = item;
        }
      } catch (err) {
        _iterator5.e(err);
      } finally {
        _iterator5.f();
      }
      return map;
    }
    /**
     * Return a map containing all the items in this stream accessible by ids.
     *
     * @returns The map of all id → item pairs from this stream.
     */
  }, {
    key: "toMap",
    value: function toMap() {
      return new _Map$1(this._pairs);
    }
    /**
     * Return a set containing all the (unique) ids in this stream.
     *
     * @returns The set of all ids from this stream.
     */
  }, {
    key: "toIdSet",
    value: function toIdSet() {
      return new _Set$1(this.toIdArray());
    }
    /**
     * Return a set containing all the (unique) items in this stream.
     *
     * @returns The set of all items from this stream.
     */
  }, {
    key: "toItemSet",
    value: function toItemSet() {
      return new _Set$1(this.toItemArray());
    }
    /**
     * Cache the items from this stream.
     *
     * @remarks
     * This method allows for items to be fetched immediatelly and used (possibly multiple times) later.
     * It can also be used to optimize performance as {@link DataStream} would otherwise reevaluate everything upon each iteration.
     *
     * ## Example
     * ```javascript
     * const ds = new DataSet([…])
     *
     * const cachedStream = ds.stream()
     *   .filter(…)
     *   .sort(…)
     *   .map(…)
     *   .cached(…) // Data are fetched, processed and cached here.
     *
     * ds.clear()
     * chachedStream // Still has all the items.
     * ```
     * @returns A new {@link DataStream} with cached items (detached from the original {@link DataSet}).
     */
  }, {
    key: "cache",
    value: function cache() {
      return new DataStream(_toConsumableArray$1(this._pairs));
    }
    /**
     * Get the distinct values of given property.
     *
     * @param callback - The function that picks and possibly converts the property.
     * @typeParam T - The type of the distinct value.
     * @returns A set of all distinct properties.
     */
  }, {
    key: "distinct",
    value: function distinct(callback) {
      var set = new _Set$1();
      var _iterator6 = _createForOfIteratorHelper$2$1(this._pairs),
        _step6;
      try {
        for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
          var _step6$value = _slicedToArray$1(_step6.value, 2),
            id = _step6$value[0],
            item = _step6$value[1];
          set.add(callback(item, id));
        }
      } catch (err) {
        _iterator6.e(err);
      } finally {
        _iterator6.f();
      }
      return set;
    }
    /**
     * Filter the items of the stream.
     *
     * @param callback - The function that decides whether an item will be included.
     * @returns A new data stream with the filtered items.
     */
  }, {
    key: "filter",
    value: function filter(callback) {
      var pairs = this._pairs;
      return new DataStream(_defineProperty$1({}, _Symbol$iterator$1, /*#__PURE__*/_regeneratorRuntime.mark(function _callee() {
        var _iterator7, _step7, _step7$value, id, item;
        return _regeneratorRuntime.wrap(function _callee$(_context7) {
          while (1) switch (_context7.prev = _context7.next) {
            case 0:
              _iterator7 = _createForOfIteratorHelper$2$1(pairs);
              _context7.prev = 1;
              _iterator7.s();
            case 3:
              if ((_step7 = _iterator7.n()).done) {
                _context7.next = 10;
                break;
              }
              _step7$value = _slicedToArray$1(_step7.value, 2), id = _step7$value[0], item = _step7$value[1];
              if (!callback(item, id)) {
                _context7.next = 8;
                break;
              }
              _context7.next = 8;
              return [id, item];
            case 8:
              _context7.next = 3;
              break;
            case 10:
              _context7.next = 15;
              break;
            case 12:
              _context7.prev = 12;
              _context7.t0 = _context7["catch"](1);
              _iterator7.e(_context7.t0);
            case 15:
              _context7.prev = 15;
              _iterator7.f();
              return _context7.finish(15);
            case 18:
            case "end":
              return _context7.stop();
          }
        }, _callee, null, [[1, 12, 15, 18]]);
      })));
    }
    /**
     * Execute a callback for each item of the stream.
     *
     * @param callback - The function that will be invoked for each item.
     */
  }, {
    key: "forEach",
    value: function forEach(callback) {
      var _iterator8 = _createForOfIteratorHelper$2$1(this._pairs),
        _step8;
      try {
        for (_iterator8.s(); !(_step8 = _iterator8.n()).done;) {
          var _step8$value = _slicedToArray$1(_step8.value, 2),
            id = _step8$value[0],
            item = _step8$value[1];
          callback(item, id);
        }
      } catch (err) {
        _iterator8.e(err);
      } finally {
        _iterator8.f();
      }
    }
    /**
     * Map the items into a different type.
     *
     * @param callback - The function that does the conversion.
     * @typeParam Mapped - The type of the item after mapping.
     * @returns A new data stream with the mapped items.
     */
  }, {
    key: "map",
    value: function map(callback) {
      var pairs = this._pairs;
      return new DataStream(_defineProperty$1({}, _Symbol$iterator$1, /*#__PURE__*/_regeneratorRuntime.mark(function _callee2() {
        var _iterator9, _step9, _step9$value, id, item;
        return _regeneratorRuntime.wrap(function _callee2$(_context8) {
          while (1) switch (_context8.prev = _context8.next) {
            case 0:
              _iterator9 = _createForOfIteratorHelper$2$1(pairs);
              _context8.prev = 1;
              _iterator9.s();
            case 3:
              if ((_step9 = _iterator9.n()).done) {
                _context8.next = 9;
                break;
              }
              _step9$value = _slicedToArray$1(_step9.value, 2), id = _step9$value[0], item = _step9$value[1];
              _context8.next = 7;
              return [id, callback(item, id)];
            case 7:
              _context8.next = 3;
              break;
            case 9:
              _context8.next = 14;
              break;
            case 11:
              _context8.prev = 11;
              _context8.t0 = _context8["catch"](1);
              _iterator9.e(_context8.t0);
            case 14:
              _context8.prev = 14;
              _iterator9.f();
              return _context8.finish(14);
            case 17:
            case "end":
              return _context8.stop();
          }
        }, _callee2, null, [[1, 11, 14, 17]]);
      })));
    }
    /**
     * Get the item with the maximum value of given property.
     *
     * @param callback - The function that picks and possibly converts the property.
     * @returns The item with the maximum if found otherwise null.
     */
  }, {
    key: "max",
    value: function max(callback) {
      var iter = _getIterator(this._pairs);
      var curr = iter.next();
      if (curr.done) {
        return null;
      }
      var maxItem = curr.value[1];
      var maxValue = callback(curr.value[1], curr.value[0]);
      while (!(curr = iter.next()).done) {
        var _curr$value = _slicedToArray$1(curr.value, 2),
          id = _curr$value[0],
          item = _curr$value[1];
        var _value = callback(item, id);
        if (_value > maxValue) {
          maxValue = _value;
          maxItem = item;
        }
      }
      return maxItem;
    }
    /**
     * Get the item with the minimum value of given property.
     *
     * @param callback - The function that picks and possibly converts the property.
     * @returns The item with the minimum if found otherwise null.
     */
  }, {
    key: "min",
    value: function min(callback) {
      var iter = _getIterator(this._pairs);
      var curr = iter.next();
      if (curr.done) {
        return null;
      }
      var minItem = curr.value[1];
      var minValue = callback(curr.value[1], curr.value[0]);
      while (!(curr = iter.next()).done) {
        var _curr$value2 = _slicedToArray$1(curr.value, 2),
          id = _curr$value2[0],
          item = _curr$value2[1];
        var _value2 = callback(item, id);
        if (_value2 < minValue) {
          minValue = _value2;
          minItem = item;
        }
      }
      return minItem;
    }
    /**
     * Reduce the items into a single value.
     *
     * @param callback - The function that does the reduction.
     * @param accumulator - The initial value of the accumulator.
     * @typeParam T - The type of the accumulated value.
     * @returns The reduced value.
     */
  }, {
    key: "reduce",
    value: function reduce(callback, accumulator) {
      var _iterator10 = _createForOfIteratorHelper$2$1(this._pairs),
        _step10;
      try {
        for (_iterator10.s(); !(_step10 = _iterator10.n()).done;) {
          var _step10$value = _slicedToArray$1(_step10.value, 2),
            id = _step10$value[0],
            item = _step10$value[1];
          accumulator = callback(accumulator, item, id);
        }
      } catch (err) {
        _iterator10.e(err);
      } finally {
        _iterator10.f();
      }
      return accumulator;
    }
    /**
     * Sort the items.
     *
     * @param callback - Item comparator.
     * @returns A new stream with sorted items.
     */
  }, {
    key: "sort",
    value: function sort(callback) {
      var _this = this;
      return new DataStream(_defineProperty$1({}, _Symbol$iterator$1, function () {
        var _context9;
        return _getIterator(_sortInstanceProperty$1(_context9 = _toConsumableArray$1(_this._pairs)).call(_context9, function (_ref, _ref2) {
          var _ref3 = _slicedToArray$1(_ref, 2),
            idA = _ref3[0],
            itemA = _ref3[1];
          var _ref4 = _slicedToArray$1(_ref2, 2),
            idB = _ref4[0],
            itemB = _ref4[1];
          return callback(itemA, itemB, idA, idB);
        }));
      }));
    }
  }]);
  return DataStream;
}();

/**
 * Check that given value is compatible with Vis Data Set interface.
 *
 * @param idProp - The expected property to contain item id.
 * @param v - The value to be tested.
 * @returns True if all expected values and methods match, false otherwise.
 */
function isDataSetLike(idProp, v) {
  return _typeof$1(v) === "object" && v !== null && idProp === v.idProp && typeof v.add === "function" && typeof v.clear === "function" && typeof v.distinct === "function" && typeof _forEachInstanceProperty$1(v) === "function" && typeof v.get === "function" && typeof v.getDataSet === "function" && typeof v.getIds === "function" && typeof v.length === "number" && typeof _mapInstanceProperty$1(v) === "function" && typeof v.max === "function" && typeof v.min === "function" && typeof v.off === "function" && typeof v.on === "function" && typeof v.remove === "function" && typeof v.setOptions === "function" && typeof v.stream === "function" && typeof v.update === "function" && typeof v.updateOnly === "function";
}

/**
 * Check that given value is compatible with Vis Data View interface.
 *
 * @param idProp - The expected property to contain item id.
 * @param v - The value to be tested.
 * @returns True if all expected values and methods match, false otherwise.
 */
function isDataViewLike(idProp, v) {
  return _typeof$1(v) === "object" && v !== null && idProp === v.idProp && typeof _forEachInstanceProperty$1(v) === "function" && typeof v.get === "function" && typeof v.getDataSet === "function" && typeof v.getIds === "function" && typeof v.length === "number" && typeof _mapInstanceProperty$1(v) === "function" && typeof v.off === "function" && typeof v.on === "function" && typeof v.stream === "function" && isDataSetLike(idProp, v.getDataSet());
}

/* Injected with object hook! */

/**
 * vis-network
 * https://visjs.github.io/vis-network/
 *
 * A dynamic, browser-based visualization library.
 *
 * @version 9.1.6
 * @date    2023-03-23T21:31:19.223Z
 *
 * @copyright (c) 2011-2017 Almende B.V, http://almende.com
 * @copyright (c) 2017-2019 visjs contributors, https://github.com/visjs
 *
 * @license
 * vis.js is dual licensed under both
 *
 *   1. The Apache 2.0 License
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *   and
 *
 *   2. The MIT License
 *      http://opensource.org/licenses/MIT
 *
 * vis.js may be distributed under either license.
 */

var commonjsGlobal$1 = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs$1 (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var assignExports = {};
var assign$5 = {
  get exports(){ return assignExports; },
  set exports(v){ assignExports = v; },
};

var check = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global$l =
  // eslint-disable-next-line es/no-global-this -- safe
  check(typeof globalThis == 'object' && globalThis) ||
  check(typeof window == 'object' && window) ||
  // eslint-disable-next-line no-restricted-globals -- safe
  check(typeof self == 'object' && self) ||
  check(typeof commonjsGlobal$1 == 'object' && commonjsGlobal$1) ||
  // eslint-disable-next-line no-new-func -- fallback
  (function () { return this; })() || Function('return this')();

var fails$w = function (exec) {
  try {
    return !!exec();
  } catch (error) {
    return true;
  }
};

var fails$v = fails$w;

var functionBindNative = !fails$v(function () {
  // eslint-disable-next-line es/no-function-prototype-bind -- safe
  var test = (function () { /* empty */ }).bind();
  // eslint-disable-next-line no-prototype-builtins -- safe
  return typeof test != 'function' || test.hasOwnProperty('prototype');
});

var NATIVE_BIND$4 = functionBindNative;

var FunctionPrototype$3 = Function.prototype;
var apply$5 = FunctionPrototype$3.apply;
var call$f = FunctionPrototype$3.call;

// eslint-disable-next-line es/no-reflect -- safe
var functionApply = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND$4 ? call$f.bind(apply$5) : function () {
  return call$f.apply(apply$5, arguments);
});

var NATIVE_BIND$3 = functionBindNative;

var FunctionPrototype$2 = Function.prototype;
var call$e = FunctionPrototype$2.call;
var uncurryThisWithBind = NATIVE_BIND$3 && FunctionPrototype$2.bind.bind(call$e, call$e);

var functionUncurryThis = NATIVE_BIND$3 ? uncurryThisWithBind : function (fn) {
  return function () {
    return call$e.apply(fn, arguments);
  };
};

var uncurryThis$y = functionUncurryThis;

var toString$c = uncurryThis$y({}.toString);
var stringSlice$1 = uncurryThis$y(''.slice);

var classofRaw$2 = function (it) {
  return stringSlice$1(toString$c(it), 8, -1);
};

var classofRaw$1 = classofRaw$2;
var uncurryThis$x = functionUncurryThis;

var functionUncurryThisClause = function (fn) {
  // Nashorn bug:
  //   https://github.com/zloirock/core-js/issues/1128
  //   https://github.com/zloirock/core-js/issues/1130
  if (classofRaw$1(fn) === 'Function') return uncurryThis$x(fn);
};

var documentAll$2 = typeof document == 'object' && document.all;

// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
// eslint-disable-next-line unicorn/no-typeof-undefined -- required for testing
var IS_HTMLDDA = typeof documentAll$2 == 'undefined' && documentAll$2 !== undefined;

var documentAll_1 = {
  all: documentAll$2,
  IS_HTMLDDA: IS_HTMLDDA
};

var $documentAll$1 = documentAll_1;

var documentAll$1 = $documentAll$1.all;

// `IsCallable` abstract operation
// https://tc39.es/ecma262/#sec-iscallable
var isCallable$i = $documentAll$1.IS_HTMLDDA ? function (argument) {
  return typeof argument == 'function' || argument === documentAll$1;
} : function (argument) {
  return typeof argument == 'function';
};

var objectGetOwnPropertyDescriptor = {};

var fails$u = fails$w;

// Detect IE8's incomplete defineProperty implementation
var descriptors = !fails$u(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
});

var NATIVE_BIND$2 = functionBindNative;

var call$d = Function.prototype.call;

var functionCall = NATIVE_BIND$2 ? call$d.bind(call$d) : function () {
  return call$d.apply(call$d, arguments);
};

var objectPropertyIsEnumerable = {};

var $propertyIsEnumerable$2 = {}.propertyIsEnumerable;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor$a = Object.getOwnPropertyDescriptor;

// Nashorn ~ JDK8 bug
var NASHORN_BUG = getOwnPropertyDescriptor$a && !$propertyIsEnumerable$2.call({ 1: 2 }, 1);

// `Object.prototype.propertyIsEnumerable` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.propertyisenumerable
objectPropertyIsEnumerable.f = NASHORN_BUG ? function propertyIsEnumerable(V) {
  var descriptor = getOwnPropertyDescriptor$a(this, V);
  return !!descriptor && descriptor.enumerable;
} : $propertyIsEnumerable$2;

var createPropertyDescriptor$5 = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

var uncurryThis$w = functionUncurryThis;
var fails$t = fails$w;
var classof$e = classofRaw$2;

var $Object$5 = Object;
var split = uncurryThis$w(''.split);

// fallback for non-array-like ES3 and non-enumerable old V8 strings
var indexedObject = fails$t(function () {
  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346
  // eslint-disable-next-line no-prototype-builtins -- safe
  return !$Object$5('z').propertyIsEnumerable(0);
}) ? function (it) {
  return classof$e(it) == 'String' ? split(it, '') : $Object$5(it);
} : $Object$5;

// we can't use just `it == null` since of `document.all` special case
// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot-aec
var isNullOrUndefined$5 = function (it) {
  return it === null || it === undefined;
};

var isNullOrUndefined$4 = isNullOrUndefined$5;

var $TypeError$g = TypeError;

// `RequireObjectCoercible` abstract operation
// https://tc39.es/ecma262/#sec-requireobjectcoercible
var requireObjectCoercible$5 = function (it) {
  if (isNullOrUndefined$4(it)) throw $TypeError$g("Can't call method on " + it);
  return it;
};

// toObject with fallback for non-array-like ES3 strings
var IndexedObject$3 = indexedObject;
var requireObjectCoercible$4 = requireObjectCoercible$5;

var toIndexedObject$b = function (it) {
  return IndexedObject$3(requireObjectCoercible$4(it));
};

var isCallable$h = isCallable$i;
var $documentAll = documentAll_1;

var documentAll = $documentAll.all;

var isObject$j = $documentAll.IS_HTMLDDA ? function (it) {
  return typeof it == 'object' ? it !== null : isCallable$h(it) || it === documentAll;
} : function (it) {
  return typeof it == 'object' ? it !== null : isCallable$h(it);
};

var path$y = {};

var path$x = path$y;
var global$k = global$l;
var isCallable$g = isCallable$i;

var aFunction = function (variable) {
  return isCallable$g(variable) ? variable : undefined;
};

var getBuiltIn$c = function (namespace, method) {
  return arguments.length < 2 ? aFunction(path$x[namespace]) || aFunction(global$k[namespace])
    : path$x[namespace] && path$x[namespace][method] || global$k[namespace] && global$k[namespace][method];
};

var uncurryThis$v = functionUncurryThis;

var objectIsPrototypeOf = uncurryThis$v({}.isPrototypeOf);

var engineUserAgent = typeof navigator != 'undefined' && String(navigator.userAgent) || '';

var global$j = global$l;
var userAgent$2 = engineUserAgent;

var process$1 = global$j.process;
var Deno$1 = global$j.Deno;
var versions = process$1 && process$1.versions || Deno$1 && Deno$1.version;
var v8 = versions && versions.v8;
var match, version;

if (v8) {
  match = v8.split('.');
  // in old Chrome, versions of V8 isn't V8 = Chrome / 10
  // but their correct versions are not interesting for us
  version = match[0] > 0 && match[0] < 4 ? 1 : +(match[0] + match[1]);
}

// BrowserFS NodeJS `process` polyfill incorrectly set `.v8` to `0.0`
// so check `userAgent` even if `.v8` exists, but 0
if (!version && userAgent$2) {
  match = userAgent$2.match(/Edge\/(\d+)/);
  if (!match || match[1] >= 74) {
    match = userAgent$2.match(/Chrome\/(\d+)/);
    if (match) version = +match[1];
  }
}

var engineV8Version = version;

/* eslint-disable es/no-symbol -- required for testing */

var V8_VERSION$2 = engineV8Version;
var fails$s = fails$w;

// eslint-disable-next-line es/no-object-getownpropertysymbols -- required for testing
var symbolConstructorDetection = !!Object.getOwnPropertySymbols && !fails$s(function () {
  var symbol = Symbol();
  // Chrome 38 Symbol has incorrect toString conversion
  // `get-own-property-symbols` polyfill symbols converted to object are not Symbol instances
  return !String(symbol) || !(Object(symbol) instanceof Symbol) ||
    // Chrome 38-40 symbols are not inherited from DOM collections prototypes to instances
    !Symbol.sham && V8_VERSION$2 && V8_VERSION$2 < 41;
});

/* eslint-disable es/no-symbol -- required for testing */

var NATIVE_SYMBOL$5 = symbolConstructorDetection;

var useSymbolAsUid = NATIVE_SYMBOL$5
  && !Symbol.sham
  && typeof Symbol.iterator == 'symbol';

var getBuiltIn$b = getBuiltIn$c;
var isCallable$f = isCallable$i;
var isPrototypeOf$k = objectIsPrototypeOf;
var USE_SYMBOL_AS_UID$1 = useSymbolAsUid;

var $Object$4 = Object;

var isSymbol$5 = USE_SYMBOL_AS_UID$1 ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  var $Symbol = getBuiltIn$b('Symbol');
  return isCallable$f($Symbol) && isPrototypeOf$k($Symbol.prototype, $Object$4(it));
};

var $String$4 = String;

var tryToString$6 = function (argument) {
  try {
    return $String$4(argument);
  } catch (error) {
    return 'Object';
  }
};

var isCallable$e = isCallable$i;
var tryToString$5 = tryToString$6;

var $TypeError$f = TypeError;

// `Assert: IsCallable(argument) is true`
var aCallable$7 = function (argument) {
  if (isCallable$e(argument)) return argument;
  throw $TypeError$f(tryToString$5(argument) + ' is not a function');
};

var aCallable$6 = aCallable$7;
var isNullOrUndefined$3 = isNullOrUndefined$5;

// `GetMethod` abstract operation
// https://tc39.es/ecma262/#sec-getmethod
var getMethod$3 = function (V, P) {
  var func = V[P];
  return isNullOrUndefined$3(func) ? undefined : aCallable$6(func);
};

var call$c = functionCall;
var isCallable$d = isCallable$i;
var isObject$i = isObject$j;

var $TypeError$e = TypeError;

// `OrdinaryToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-ordinarytoprimitive
var ordinaryToPrimitive$1 = function (input, pref) {
  var fn, val;
  if (pref === 'string' && isCallable$d(fn = input.toString) && !isObject$i(val = call$c(fn, input))) return val;
  if (isCallable$d(fn = input.valueOf) && !isObject$i(val = call$c(fn, input))) return val;
  if (pref !== 'string' && isCallable$d(fn = input.toString) && !isObject$i(val = call$c(fn, input))) return val;
  throw $TypeError$e("Can't convert object to primitive value");
};

var sharedExports = {};
var shared$7 = {
  get exports(){ return sharedExports; },
  set exports(v){ sharedExports = v; },
};

var global$i = global$l;

// eslint-disable-next-line es/no-object-defineproperty -- safe
var defineProperty$f = Object.defineProperty;

var global$h = global$l;
var defineGlobalProperty = defineGlobalProperty$1;

var SHARED = '__core-js_shared__';
var store$3 = global$h[SHARED] || defineGlobalProperty(SHARED, {});

var sharedStore = store$3;

var store$2 = sharedStore;

(shared$7.exports = function (key, value) {
  return store$2[key] || (store$2[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: '3.29.0',
  mode: 'pure' ,
  copyright: '© 2014-2023 Denis Pushkarev (zloirock.ru)',
  license: 'https://github.com/zloirock/core-js/blob/v3.29.0/LICENSE',
  source: 'https://github.com/zloirock/core-js'
});

var requireObjectCoercible$3 = requireObjectCoercible$5;

var $Object$3 = Object;

// `ToObject` abstract operation
// https://tc39.es/ecma262/#sec-toobject
var toObject$d = function (argument) {
  return $Object$3(requireObjectCoercible$3(argument));
};

var uncurryThis$u = functionUncurryThis;
var toObject$c = toObject$d;

var hasOwnProperty = uncurryThis$u({}.hasOwnProperty);

// `HasOwnProperty` abstract operation
// https://tc39.es/ecma262/#sec-hasownproperty
// eslint-disable-next-line es/no-object-hasown -- safe
var hasOwnProperty_1 = Object.hasOwn || function hasOwn(it, key) {
  return hasOwnProperty(toObject$c(it), key);
};

var uncurryThis$t = functionUncurryThis;

var id$2 = 0;
var postfix = Math.random();
var toString$b = uncurryThis$t(1.0.toString);

var uid$4 = function (key) {
  return 'Symbol(' + (key === undefined ? '' : key) + ')_' + toString$b(++id$2 + postfix, 36);
};

var global$g = global$l;
var shared$6 = sharedExports;
var hasOwn$h = hasOwnProperty_1;
var uid$3 = uid$4;
var NATIVE_SYMBOL$4 = symbolConstructorDetection;
var USE_SYMBOL_AS_UID = useSymbolAsUid;

var Symbol$5 = global$g.Symbol;
var WellKnownSymbolsStore$2 = shared$6('wks');
var createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol$5['for'] || Symbol$5 : Symbol$5 && Symbol$5.withoutSetter || uid$3;

var wellKnownSymbol$l = function (name) {
  if (!hasOwn$h(WellKnownSymbolsStore$2, name)) {
    WellKnownSymbolsStore$2[name] = NATIVE_SYMBOL$4 && hasOwn$h(Symbol$5, name)
      ? Symbol$5[name]
      : createWellKnownSymbol('Symbol.' + name);
  } return WellKnownSymbolsStore$2[name];
};

var call$b = functionCall;
var isObject$h = isObject$j;
var isSymbol$4 = isSymbol$5;
var getMethod$2 = getMethod$3;
var ordinaryToPrimitive = ordinaryToPrimitive$1;
var wellKnownSymbol$k = wellKnownSymbol$l;

var $TypeError$d = TypeError;
var TO_PRIMITIVE = wellKnownSymbol$k('toPrimitive');

// `ToPrimitive` abstract operation
// https://tc39.es/ecma262/#sec-toprimitive
var toPrimitive$7 = function (input, pref) {
  if (!isObject$h(input) || isSymbol$4(input)) return input;
  var exoticToPrim = getMethod$2(input, TO_PRIMITIVE);
  var result;
  if (exoticToPrim) {
    if (pref === undefined) pref = 'default';
    result = call$b(exoticToPrim, input, pref);
    if (!isObject$h(result) || isSymbol$4(result)) return result;
    throw $TypeError$d("Can't convert object to primitive value");
  }
  if (pref === undefined) pref = 'number';
  return ordinaryToPrimitive(input, pref);
};

var toPrimitive$6 = toPrimitive$7;
var isSymbol$3 = isSymbol$5;

// `ToPropertyKey` abstract operation
// https://tc39.es/ecma262/#sec-topropertykey
var toPropertyKey$4 = function (argument) {
  var key = toPrimitive$6(argument, 'string');
  return isSymbol$3(key) ? key : key + '';
};

var global$f = global$l;
var isObject$g = isObject$j;

var document$1 = global$f.document;
// typeof document.createElement is 'object' in old IE
var EXISTS$1 = isObject$g(document$1) && isObject$g(document$1.createElement);

var documentCreateElement$1 = function (it) {
  return EXISTS$1 ? document$1.createElement(it) : {};
};

var DESCRIPTORS$i = descriptors;
var fails$r = fails$w;
var createElement = documentCreateElement$1;

// Thanks to IE8 for its funny defineProperty
var ie8DomDefine = !DESCRIPTORS$i && !fails$r(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(createElement('div'), 'a', {
    get: function () { return 7; }
  }).a != 7;
});

var DESCRIPTORS$h = descriptors;
var call$a = functionCall;
var propertyIsEnumerableModule$2 = objectPropertyIsEnumerable;
var createPropertyDescriptor$4 = createPropertyDescriptor$5;
var toIndexedObject$a = toIndexedObject$b;
var toPropertyKey$3 = toPropertyKey$4;
var hasOwn$g = hasOwnProperty_1;
var IE8_DOM_DEFINE$1 = ie8DomDefine;

// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor$2 = Object.getOwnPropertyDescriptor;

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
objectGetOwnPropertyDescriptor.f = DESCRIPTORS$h ? $getOwnPropertyDescriptor$2 : function getOwnPropertyDescriptor(O, P) {
  O = toIndexedObject$a(O);
  P = toPropertyKey$3(P);
  if (IE8_DOM_DEFINE$1) try {
    return $getOwnPropertyDescriptor$2(O, P);
  } catch (error) { /* empty */ }
  if (hasOwn$g(O, P)) return createPropertyDescriptor$4(!call$a(propertyIsEnumerableModule$2.f, O, P), O[P]);
};

var fails$q = fails$w;
var isCallable$c = isCallable$i;

var replacement = /#|\.prototype\./;

var isForced$1 = function (feature, detection) {
  var value = data[normalize$2(feature)];
  return value == POLYFILL ? true
    : value == NATIVE ? false
    : isCallable$c(detection) ? fails$q(detection)
    : !!detection;
};

var normalize$2 = isForced$1.normalize = function (string) {
  return String(string).replace(replacement, '.').toLowerCase();
};

var data = isForced$1.data = {};
var NATIVE = isForced$1.NATIVE = 'N';
var POLYFILL = isForced$1.POLYFILL = 'P';

var isForced_1 = isForced$1;

var uncurryThis$s = functionUncurryThisClause;
var aCallable$5 = aCallable$7;
var NATIVE_BIND$1 = functionBindNative;

var bind$f = uncurryThis$s(uncurryThis$s.bind);

// optional / simple context binding
var functionBindContext = function (fn, that) {
  aCallable$5(fn);
  return that === undefined ? fn : NATIVE_BIND$1 ? bind$f(fn, that) : function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};

var objectDefineProperty = {};

var DESCRIPTORS$g = descriptors;
var fails$p = fails$w;

// V8 ~ Chrome 36-
// https://bugs.chromium.org/p/v8/issues/detail?id=3334
var v8PrototypeDefineBug = DESCRIPTORS$g && fails$p(function () {
  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
  return Object.defineProperty(function () { /* empty */ }, 'prototype', {
    value: 42,
    writable: false
  }).prototype != 42;
});

var isObject$f = isObject$j;

var $String$3 = String;
var $TypeError$c = TypeError;

// `Assert: Type(argument) is Object`
var anObject$d = function (argument) {
  if (isObject$f(argument)) return argument;
  throw $TypeError$c($String$3(argument) + ' is not an object');
};

var DESCRIPTORS$f = descriptors;
var IE8_DOM_DEFINE = ie8DomDefine;
var V8_PROTOTYPE_DEFINE_BUG$1 = v8PrototypeDefineBug;
var anObject$c = anObject$d;
var toPropertyKey$2 = toPropertyKey$4;

var $TypeError$b = TypeError;
// eslint-disable-next-line es/no-object-defineproperty -- safe
var $defineProperty$1 = Object.defineProperty;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var $getOwnPropertyDescriptor$1 = Object.getOwnPropertyDescriptor;
var ENUMERABLE = 'enumerable';
var CONFIGURABLE$1 = 'configurable';
var WRITABLE = 'writable';

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
objectDefineProperty.f = DESCRIPTORS$f ? V8_PROTOTYPE_DEFINE_BUG$1 ? function defineProperty(O, P, Attributes) {
  anObject$c(O);
  P = toPropertyKey$2(P);
  anObject$c(Attributes);
  if (typeof O === 'function' && P === 'prototype' && 'value' in Attributes && WRITABLE in Attributes && !Attributes[WRITABLE]) {
    var current = $getOwnPropertyDescriptor$1(O, P);
    if (current && current[WRITABLE]) {
      O[P] = Attributes.value;
      Attributes = {
        configurable: CONFIGURABLE$1 in Attributes ? Attributes[CONFIGURABLE$1] : current[CONFIGURABLE$1],
        enumerable: ENUMERABLE in Attributes ? Attributes[ENUMERABLE] : current[ENUMERABLE],
        writable: false
      };
    }
  } return $defineProperty$1(O, P, Attributes);
} : $defineProperty$1 : function defineProperty(O, P, Attributes) {
  anObject$c(O);
  P = toPropertyKey$2(P);
  anObject$c(Attributes);
  if (IE8_DOM_DEFINE) try {
    return $defineProperty$1(O, P, Attributes);
  } catch (error) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw $TypeError$b('Accessors not supported');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

var DESCRIPTORS$e = descriptors;
var definePropertyModule$3 = objectDefineProperty;
var createPropertyDescriptor$3 = createPropertyDescriptor$5;

var createNonEnumerableProperty$6 = DESCRIPTORS$e ? function (object, key, value) {
  return definePropertyModule$3.f(object, key, createPropertyDescriptor$3(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

var global$e = global$l;
var apply$4 = functionApply;
var uncurryThis$r = functionUncurryThisClause;
var isCallable$b = isCallable$i;
var getOwnPropertyDescriptor$9 = objectGetOwnPropertyDescriptor.f;
var isForced = isForced_1;
var path$w = path$y;
var bind$e = functionBindContext;
var createNonEnumerableProperty$5 = createNonEnumerableProperty$6;
var hasOwn$f = hasOwnProperty_1;

/*
  options.target         - name of the target object
  options.global         - target is the global object
  options.stat           - export as static methods of target
  options.proto          - export as prototype methods of target
  options.real           - real prototype method for the `pure` version
  options.forced         - export even if the native feature is available
  options.bind           - bind methods to the target, required for the `pure` version
  options.wrap           - wrap constructors to preventing global pollution, required for the `pure` version
  options.unsafe         - use the simple assignment of property instead of delete + defineProperty
  options.sham           - add a flag to not completely full polyfills
  options.enumerable     - export as enumerable property
  options.dontCallGetSet - prevent calling a getter on target
  options.name           - the .name of the function if it does not match the key
*/
var _export = function (options, source) {
  var TARGET = options.target;
  var GLOBAL = options.global;
  var STATIC = options.stat;
  var PROTO = options.proto;

var nativeSource = GLOBAL ? global$e : STATIC ? global$e[TARGET] : (global$e[TARGET] || {}).prototype;

var target = GLOBAL ? path$w : path$w[TARGET] || createNonEnumerableProperty$5(path$w, TARGET, {})[TARGET];
  var targetPrototype = target.prototype;

var FORCED, USE_NATIVE, VIRTUAL_PROTOTYPE;
  var key, sourceProperty, targetProperty, nativeProperty, resultProperty, descriptor;

for (key in source) {
    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);
    // contains in native
    USE_NATIVE = !FORCED && nativeSource && hasOwn$f(nativeSource, key);

targetProperty = target[key];

if (USE_NATIVE) if (options.dontCallGetSet) {
      descriptor = getOwnPropertyDescriptor$9(nativeSource, key);
      nativeProperty = descriptor && descriptor.value;
    } else nativeProperty = nativeSource[key];

// export native or implementation
    sourceProperty = (USE_NATIVE && nativeProperty) ? nativeProperty : source[key];

if (USE_NATIVE && typeof targetProperty == typeof sourceProperty) continue;

// bind methods to global for calling from export context
    if (options.bind && USE_NATIVE) resultProperty = bind$e(sourceProperty, global$e);
    // wrap global constructors for prevent changes in this version
    else if (options.wrap && USE_NATIVE) resultProperty = wrapConstructor(sourceProperty);
    // make static versions for prototype methods
    else if (PROTO && isCallable$b(sourceProperty)) resultProperty = uncurryThis$r(sourceProperty);
    // default case
    else resultProperty = sourceProperty;

createNonEnumerableProperty$5(target, key, resultProperty);

if (PROTO) {
      VIRTUAL_PROTOTYPE = TARGET + 'Prototype';
      if (!hasOwn$f(path$w, VIRTUAL_PROTOTYPE)) {
        createNonEnumerableProperty$5(path$w, VIRTUAL_PROTOTYPE, {});
      }
      // export virtual prototype methods
      createNonEnumerableProperty$5(path$w[VIRTUAL_PROTOTYPE], key, sourceProperty);
      // export real prototype methods
      if (options.real && targetPrototype && (FORCED || !targetPrototype[key])) {
        createNonEnumerableProperty$5(targetPrototype, key, sourceProperty);
      }
    }
  }
};

var ceil = Math.ceil;
var floor$1 = Math.floor;

// `Math.trunc` method
// https://tc39.es/ecma262/#sec-math.trunc
// eslint-disable-next-line es/no-math-trunc -- safe
var mathTrunc = Math.trunc || function trunc(x) {
  var n = +x;
  return (n > 0 ? floor$1 : ceil)(n);
};

var trunc = mathTrunc;

// `ToIntegerOrInfinity` abstract operation
// https://tc39.es/ecma262/#sec-tointegerorinfinity
var toIntegerOrInfinity$4 = function (argument) {
  var number = +argument;
  // eslint-disable-next-line no-self-compare -- NaN check
  return number !== number || number === 0 ? 0 : trunc(number);
};

var toIntegerOrInfinity$3 = toIntegerOrInfinity$4;

var max$3 = Math.max;
var min$2 = Math.min;

// Helper for a popular repeating case of the spec:
// Let integer be ? ToInteger(index).
// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).
var toAbsoluteIndex$5 = function (index, length) {
  var integer = toIntegerOrInfinity$3(index);
  return integer < 0 ? max$3(integer + length, 0) : min$2(integer, length);
};

var toIntegerOrInfinity$2 = toIntegerOrInfinity$4;

var min$1$1 = Math.min;

// `ToLength` abstract operation
// https://tc39.es/ecma262/#sec-tolength
var toLength$1 = function (argument) {
  return argument > 0 ? min$1$1(toIntegerOrInfinity$2(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991
};

var toLength = toLength$1;

// `LengthOfArrayLike` abstract operation
// https://tc39.es/ecma262/#sec-lengthofarraylike
var lengthOfArrayLike$b = function (obj) {
  return toLength(obj.length);
};

var toIndexedObject$9 = toIndexedObject$b;
var toAbsoluteIndex$4 = toAbsoluteIndex$5;
var lengthOfArrayLike$a = lengthOfArrayLike$b;

// `Array.prototype.{ indexOf, includes }` methods implementation
var createMethod$5 = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIndexedObject$9($this);
    var length = lengthOfArrayLike$a(O);
    var index = toAbsoluteIndex$4(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare -- NaN check
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare -- NaN check
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) {
      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};

var arrayIncludes = {
  // `Array.prototype.includes` method
  // https://tc39.es/ecma262/#sec-array.prototype.includes
  includes: createMethod$5(true),
  // `Array.prototype.indexOf` method
  // https://tc39.es/ecma262/#sec-array.prototype.indexof
  indexOf: createMethod$5(false)
};

var hiddenKeys$6 = {};

var uncurryThis$q = functionUncurryThis;
var hasOwn$e = hasOwnProperty_1;
var toIndexedObject$8 = toIndexedObject$b;
var indexOf$4 = arrayIncludes.indexOf;
var hiddenKeys$5 = hiddenKeys$6;

var push$6 = uncurryThis$q([].push);

var objectKeysInternal = function (object, names) {
  var O = toIndexedObject$8(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) !hasOwn$e(hiddenKeys$5, key) && hasOwn$e(O, key) && push$6(result, key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (hasOwn$e(O, key = names[i++])) {
    ~indexOf$4(result, key) || push$6(result, key);
  }
  return result;
};

// IE8- don't enum bug keys
var enumBugKeys$3 = [
  'constructor',
  'hasOwnProperty',
  'isPrototypeOf',
  'propertyIsEnumerable',
  'toLocaleString',
  'toString',
  'valueOf'
];

var internalObjectKeys$1 = objectKeysInternal;
var enumBugKeys$2 = enumBugKeys$3;

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
// eslint-disable-next-line es/no-object-keys -- safe
var objectKeys$4 = Object.keys || function keys(O) {
  return internalObjectKeys$1(O, enumBugKeys$2);
};

var objectGetOwnPropertySymbols = {};

// eslint-disable-next-line es/no-object-getownpropertysymbols -- safe
objectGetOwnPropertySymbols.f = Object.getOwnPropertySymbols;

var DESCRIPTORS$d = descriptors;
var uncurryThis$p = functionUncurryThis;
var call$9 = functionCall;
var fails$o = fails$w;
var objectKeys$3 = objectKeys$4;
var getOwnPropertySymbolsModule$3 = objectGetOwnPropertySymbols;
var propertyIsEnumerableModule$1 = objectPropertyIsEnumerable;
var toObject$b = toObject$d;
var IndexedObject$2 = indexedObject;

// eslint-disable-next-line es/no-object-assign -- safe
var $assign = Object.assign;
// eslint-disable-next-line es/no-object-defineproperty -- required for testing
var defineProperty$e = Object.defineProperty;
var concat$6 = uncurryThis$p([].concat);

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
var objectAssign = !$assign || fails$o(function () {
  // should have correct order of operations (Edge bug)
  if (DESCRIPTORS$d && $assign({ b: 1 }, $assign(defineProperty$e({}, 'a', {
    enumerable: true,
    get: function () {
      defineProperty$e(this, 'b', {
        value: 3,
        enumerable: false
      });
    }
  }), { b: 2 })).b !== 1) return true;
  // should work with symbols and should have deterministic property order (V8 bug)
  var A = {};
  var B = {};
  // eslint-disable-next-line es/no-symbol -- safe
  var symbol = Symbol();
  var alphabet = 'abcdefghijklmnopqrst';
  A[symbol] = 7;
  alphabet.split('').forEach(function (chr) { B[chr] = chr; });
  return $assign({}, A)[symbol] != 7 || objectKeys$3($assign({}, B)).join('') != alphabet;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars -- required for `.length`
  var T = toObject$b(target);
  var argumentsLength = arguments.length;
  var index = 1;
  var getOwnPropertySymbols = getOwnPropertySymbolsModule$3.f;
  var propertyIsEnumerable = propertyIsEnumerableModule$1.f;
  while (argumentsLength > index) {
    var S = IndexedObject$2(arguments[index++]);
    var keys = getOwnPropertySymbols ? concat$6(objectKeys$3(S), getOwnPropertySymbols(S)) : objectKeys$3(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS$d || call$9(propertyIsEnumerable, S, key)) T[key] = S[key];
    }
  } return T;
} : $assign;

var $$O = _export;
var assign$4 = objectAssign;

// `Object.assign` method
// https://tc39.es/ecma262/#sec-object.assign
// eslint-disable-next-line es/no-object-assign -- required for testing
$$O({ target: 'Object', stat: true, arity: 2, forced: Object.assign !== assign$4 }, {
  assign: assign$4
});

var path$v = path$y;

var assign$3 = path$v.Object.assign;

var parent$1b = assign$3;

var assign$2 = parent$1b;

(function (module) {
	module.exports = assign$2;
} (assign$5));

var _Object$assign = /*@__PURE__*/getDefaultExportFromCjs$1(assignExports);

var bindExports$2 = {};
var bind$d = {
  get exports(){ return bindExports$2; },
  set exports(v){ bindExports$2 = v; },
};

var uncurryThis$o = functionUncurryThis;

var arraySlice$5 = uncurryThis$o([].slice);

var uncurryThis$n = functionUncurryThis;
var aCallable$4 = aCallable$7;
var isObject$e = isObject$j;
var hasOwn$d = hasOwnProperty_1;
var arraySlice$4 = arraySlice$5;
var NATIVE_BIND = functionBindNative;

var $Function = Function;
var concat$5 = uncurryThis$n([].concat);
var join = uncurryThis$n([].join);
var factories = {};

var construct$4 = function (C, argsLength, args) {
  if (!hasOwn$d(factories, argsLength)) {
    for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';
    factories[argsLength] = $Function('C,a', 'return new C(' + join(list, ',') + ')');
  } return factories[argsLength](C, args);
};

// `Function.prototype.bind` method implementation
// https://tc39.es/ecma262/#sec-function.prototype.bind
// eslint-disable-next-line es/no-function-prototype-bind -- detection
var functionBind = NATIVE_BIND ? $Function.bind : function bind(that /* , ...args */) {
  var F = aCallable$4(this);
  var Prototype = F.prototype;
  var partArgs = arraySlice$4(arguments, 1);
  var boundFunction = function bound(/* args... */) {
    var args = concat$5(partArgs, arraySlice$4(arguments));
    return this instanceof boundFunction ? construct$4(F, args.length, args) : F.apply(that, args);
  };
  if (isObject$e(Prototype)) boundFunction.prototype = Prototype;
  return boundFunction;
};

// TODO: Remove from `core-js@4`
var $$N = _export;
var bind$c = functionBind;

// `Function.prototype.bind` method
// https://tc39.es/ecma262/#sec-function.prototype.bind
// eslint-disable-next-line es/no-function-prototype-bind -- detection
$$N({ target: 'Function', proto: true, forced: Function.bind !== bind$c }, {
  bind: bind$c
});

var path$u = path$y;

var entryVirtual$i = function (CONSTRUCTOR) {
  return path$u[CONSTRUCTOR + 'Prototype'];
};

var entryVirtual$h = entryVirtual$i;

var bind$b = entryVirtual$h('Function').bind;

var isPrototypeOf$j = objectIsPrototypeOf;
var method$f = bind$b;

var FunctionPrototype$1 = Function.prototype;

var bind$a = function (it) {
  var own = it.bind;
  return it === FunctionPrototype$1 || (isPrototypeOf$j(FunctionPrototype$1, it) && own === FunctionPrototype$1.bind) ? method$f : own;
};

var parent$1a = bind$a;

var bind$9 = parent$1a;

(function (module) {
	module.exports = bind$9;
} (bind$d));

var _bindInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$1(bindExports$2);

/**
 * Draw a circle.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - The radius of the circle.
 */
function drawCircle(ctx, x, y, r) {
  ctx.beginPath();
  ctx.arc(x, y, r, 0, 2 * Math.PI, false);
  ctx.closePath();
}
/**
 * Draw a square.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - Half of the width and height of the square.
 */
function drawSquare(ctx, x, y, r) {
  ctx.beginPath();
  ctx.rect(x - r, y - r, r * 2, r * 2);
  ctx.closePath();
}
/**
 * Draw an equilateral triangle standing on a side.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - Half of the length of the sides.
 * @remarks
 * http://en.wikipedia.org/wiki/Equilateral_triangle
 */
function drawTriangle(ctx, x, y, r) {
  ctx.beginPath();
  // the change in radius and the offset is here to center the shape
  r *= 1.15;
  y += 0.275 * r;
  var s = r * 2;
  var s2 = s / 2;
  var ir = Math.sqrt(3) / 6 * s; // radius of inner circle
  var h = Math.sqrt(s * s - s2 * s2); // height
  ctx.moveTo(x, y - (h - ir));
  ctx.lineTo(x + s2, y + ir);
  ctx.lineTo(x - s2, y + ir);
  ctx.lineTo(x, y - (h - ir));
  ctx.closePath();
}
/**
 * Draw an equilateral triangle standing on a vertex.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - Half of the length of the sides.
 * @remarks
 * http://en.wikipedia.org/wiki/Equilateral_triangle
 */
function drawTriangleDown(ctx, x, y, r) {
  ctx.beginPath();
  // the change in radius and the offset is here to center the shape
  r *= 1.15;
  y -= 0.275 * r;
  var s = r * 2;
  var s2 = s / 2;
  var ir = Math.sqrt(3) / 6 * s; // radius of inner circle
  var h = Math.sqrt(s * s - s2 * s2); // height
  ctx.moveTo(x, y + (h - ir));
  ctx.lineTo(x + s2, y - ir);
  ctx.lineTo(x - s2, y - ir);
  ctx.lineTo(x, y + (h - ir));
  ctx.closePath();
}
/**
 * Draw a star.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - The outer radius of the star.
 */
function drawStar(ctx, x, y, r) {
  // http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/
  ctx.beginPath();
  // the change in radius and the offset is here to center the shape
  r *= 0.82;
  y += 0.1 * r;
  for (var n = 0; n < 10; n++) {
    var radius = n % 2 === 0 ? r * 1.3 : r * 0.5;
    ctx.lineTo(x + radius * Math.sin(n * 2 * Math.PI / 10), y - radius * Math.cos(n * 2 * Math.PI / 10));
  }
  ctx.closePath();
}
/**
 * Draw a diamond.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - Half of the width and height of the diamond.
 * @remarks
 * http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/
 */
function drawDiamond(ctx, x, y, r) {
  ctx.beginPath();
  ctx.lineTo(x, y + r);
  ctx.lineTo(x + r, y);
  ctx.lineTo(x, y - r);
  ctx.lineTo(x - r, y);
  ctx.closePath();
}
/**
 * Draw a rectangle with rounded corners.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param w - The width of the rectangle.
 * @param h - The height of the rectangle.
 * @param r - The radius of the corners.
 * @remarks
 * http://stackoverflow.com/questions/1255512/how-to-draw-a-rounded-rectangle-on-html-canvas
 */
function drawRoundRect(ctx, x, y, w, h, r) {
  var r2d = Math.PI / 180;
  if (w - 2 * r < 0) {
    r = w / 2;
  } //ensure that the radius isn't too large for x
  if (h - 2 * r < 0) {
    r = h / 2;
  } //ensure that the radius isn't too large for y
  ctx.beginPath();
  ctx.moveTo(x + r, y);
  ctx.lineTo(x + w - r, y);
  ctx.arc(x + w - r, y + r, r, r2d * 270, r2d * 360, false);
  ctx.lineTo(x + w, y + h - r);
  ctx.arc(x + w - r, y + h - r, r, 0, r2d * 90, false);
  ctx.lineTo(x + r, y + h);
  ctx.arc(x + r, y + h - r, r, r2d * 90, r2d * 180, false);
  ctx.lineTo(x, y + r);
  ctx.arc(x + r, y + r, r, r2d * 180, r2d * 270, false);
  ctx.closePath();
}
/**
 * Draw an ellipse.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param w - The width of the ellipse.
 * @param h - The height of the ellipse.
 * @remarks
 * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas
 *
 * Postfix '_vis' added to discern it from standard method ellipse().
 */
function drawEllipse(ctx, x, y, w, h) {
  var kappa = 0.5522848,
    ox = w / 2 * kappa,
    // control point offset horizontal
    oy = h / 2 * kappa,
    // control point offset vertical
    xe = x + w,
    // x-end
    ye = y + h,
    // y-end
    xm = x + w / 2,
    // x-middle
    ym = y + h / 2; // y-middle
  ctx.beginPath();
  ctx.moveTo(x, ym);
  ctx.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
  ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
  ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
  ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
  ctx.closePath();
}
/**
 * Draw an isometric cylinder.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param w - The width of the database.
 * @param h - The height of the database.
 * @remarks
 * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas
 */
function drawDatabase(ctx, x, y, w, h) {
  var f = 1 / 3;
  var wEllipse = w;
  var hEllipse = h * f;
  var kappa = 0.5522848,
    ox = wEllipse / 2 * kappa,
    // control point offset horizontal
    oy = hEllipse / 2 * kappa,
    // control point offset vertical
    xe = x + wEllipse,
    // x-end
    ye = y + hEllipse,
    // y-end
    xm = x + wEllipse / 2,
    // x-middle
    ym = y + hEllipse / 2,
    // y-middle
    ymb = y + (h - hEllipse / 2),
    // y-midlle, bottom ellipse
    yeb = y + h; // y-end, bottom ellipse
  ctx.beginPath();
  ctx.moveTo(xe, ym);
  ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
  ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
  ctx.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
  ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
  ctx.lineTo(xe, ymb);
  ctx.bezierCurveTo(xe, ymb + oy, xm + ox, yeb, xm, yeb);
  ctx.bezierCurveTo(xm - ox, yeb, x, ymb + oy, x, ymb);
  ctx.lineTo(x, ym);
}
/**
 * Draw a dashed line.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The start position on the x axis.
 * @param y - The start position on the y axis.
 * @param x2 - The end position on the x axis.
 * @param y2 - The end position on the y axis.
 * @param pattern - List of lengths starting with line and then alternating between space and line.
 * @author David Jordan
 * @remarks
 * date 2012-08-08
 * http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas
 */
function drawDashedLine(ctx, x, y, x2, y2, pattern) {
  ctx.beginPath();
  ctx.moveTo(x, y);
  var patternLength = pattern.length;
  var dx = x2 - x;
  var dy = y2 - y;
  var slope = dy / dx;
  var distRemaining = Math.sqrt(dx * dx + dy * dy);
  var patternIndex = 0;
  var draw = true;
  var xStep = 0;
  var dashLength = +pattern[0];
  while (distRemaining >= 0.1) {
    dashLength = +pattern[patternIndex++ % patternLength];
    if (dashLength > distRemaining) {
      dashLength = distRemaining;
    }
    xStep = Math.sqrt(dashLength * dashLength / (1 + slope * slope));
    xStep = dx < 0 ? -xStep : xStep;
    x += xStep;
    y += slope * xStep;
    if (draw === true) {
      ctx.lineTo(x, y);
    } else {
      ctx.moveTo(x, y);
    }
    distRemaining -= dashLength;
    draw = !draw;
  }
}
/**
 * Draw a hexagon.
 *
 * @param ctx - The context this shape will be rendered to.
 * @param x - The position of the center on the x axis.
 * @param y - The position of the center on the y axis.
 * @param r - The radius of the hexagon.
 */
function drawHexagon(ctx, x, y, r) {
  ctx.beginPath();
  var sides = 6;
  var a = Math.PI * 2 / sides;
  ctx.moveTo(x + r, y);
  for (var i = 1; i < sides; i++) {
    ctx.lineTo(x + r * Math.cos(a * i), y + r * Math.sin(a * i));
  }
  ctx.closePath();
}
var shapeMap = {
  circle: drawCircle,
  dashedLine: drawDashedLine,
  database: drawDatabase,
  diamond: drawDiamond,
  ellipse: drawEllipse,
  ellipse_vis: drawEllipse,
  hexagon: drawHexagon,
  roundRect: drawRoundRect,
  square: drawSquare,
  star: drawStar,
  triangle: drawTriangle,
  triangleDown: drawTriangleDown
};
/**
 * Returns either custom or native drawing function base on supplied name.
 *
 * @param name - The name of the function. Either the name of a
 * CanvasRenderingContext2D property or an export from shapes.ts without the
 * draw prefix.
 * @returns The function that can be used for rendering. In case of native
 * CanvasRenderingContext2D function the API is normalized to
 * `(ctx: CanvasRenderingContext2D, ...originalArgs) => void`.
 */
function getShape(name) {
  if (Object.prototype.hasOwnProperty.call(shapeMap, name)) {
    return shapeMap[name];
  } else {
    return function (ctx) {
      for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
      }
      CanvasRenderingContext2D.prototype[name].call(ctx, args);
    };
  }
}

var componentEmitterExports = {};
var componentEmitter = {
  get exports(){ return componentEmitterExports; },
  set exports(v){ componentEmitterExports = v; },
};

(function (module) {
	/**
	 * Expose `Emitter`.
	 */

{
	  module.exports = Emitter;
	}

/**
	 * Initialize a new `Emitter`.
	 *
	 * @api public
	 */

function Emitter(obj) {
	  if (obj) return mixin(obj);
	}
	/**
	 * Mixin the emitter properties.
	 *
	 * @param {Object} obj
	 * @return {Object}
	 * @api private
	 */

function mixin(obj) {
	  for (var key in Emitter.prototype) {
	    obj[key] = Emitter.prototype[key];
	  }
	  return obj;
	}

/**
	 * Listen on the given `event` with `fn`.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

/**
	 * Adds an `event` listener that will be invoked a single
	 * time then automatically removed.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

Emitter.prototype.once = function(event, fn){
	  function on() {
	    this.off(event, on);
	    fn.apply(this, arguments);
	  }

on.fn = fn;
	  this.on(event, on);
	  return this;
	};

/**
	 * Remove the given callback for `event` or all
	 * registered callbacks.
	 *
	 * @param {String} event
	 * @param {Function} fn
	 * @return {Emitter}
	 * @api public
	 */

// all
	  if (0 == arguments.length) {
	    this._callbacks = {};
	    return this;
	  }

// specific event
	  var callbacks = this._callbacks['$' + event];
	  if (!callbacks) return this;

// remove all handlers
	  if (1 == arguments.length) {
	    delete this._callbacks['$' + event];
	    return this;
	  }

// Remove event specific arrays for event types that no
	  // one is subscribed for to avoid memory leak.
	  if (callbacks.length === 0) {
	    delete this._callbacks['$' + event];
	  }

return this;
	};

/**
	 * Emit `event` with the given args.
	 *
	 * @param {String} event
	 * @param {Mixed} ...
	 * @return {Emitter}
	 */

Emitter.prototype.emit = function(event){
	  this._callbacks = this._callbacks || {};

var args = new Array(arguments.length - 1)
	    , callbacks = this._callbacks['$' + event];

for (var i = 1; i < arguments.length; i++) {
	    args[i - 1] = arguments[i];
	  }

if (callbacks) {
	    callbacks = callbacks.slice(0);
	    for (var i = 0, len = callbacks.length; i < len; ++i) {
	      callbacks[i].apply(this, args);
	    }
	  }

return this;
	};

/**
	 * Return array of callbacks for `event`.
	 *
	 * @param {String} event
	 * @return {Array}
	 * @api public
	 */

Emitter.prototype.listeners = function(event){
	  this._callbacks = this._callbacks || {};
	  return this._callbacks['$' + event] || [];
	};

/**
	 * Check if this emitter has `event` handlers.
	 *
	 * @param {String} event
	 * @return {Boolean}
	 * @api public
	 */

Emitter.prototype.hasListeners = function(event){
	  return !! this.listeners(event).length;
	};
} (componentEmitter));

var Emitter = componentEmitterExports;

var fromExports$2 = {};
var from$7 = {
  get exports(){ return fromExports$2; },
  set exports(v){ fromExports$2 = v; },
};

var wellKnownSymbol$j = wellKnownSymbol$l;

var TO_STRING_TAG$3 = wellKnownSymbol$j('toStringTag');
var test$2 = {};

test$2[TO_STRING_TAG$3] = 'z';

var toStringTagSupport = String(test$2) === '[object z]';

var TO_STRING_TAG_SUPPORT$2 = toStringTagSupport;
var isCallable$a = isCallable$i;
var classofRaw = classofRaw$2;
var wellKnownSymbol$i = wellKnownSymbol$l;

var TO_STRING_TAG$2 = wellKnownSymbol$i('toStringTag');
var $Object$2 = Object;

// ES3 wrong here
var CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (error) { /* empty */ }
};

// getting tag from ES6+ `Object.prototype.toString`
var classof$d = TO_STRING_TAG_SUPPORT$2 ? classofRaw : function (it) {
  var O, tag, result;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (tag = tryGet(O = $Object$2(it), TO_STRING_TAG$2)) == 'string' ? tag
    // builtinTag case
    : CORRECT_ARGUMENTS ? classofRaw(O)
    // ES3 arguments fallback
    : (result = classofRaw(O)) == 'Object' && isCallable$a(O.callee) ? 'Arguments' : result;
};

var classof$c = classof$d;

var $String$2 = String;

var toString$a = function (argument) {
  if (classof$c(argument) === 'Symbol') throw TypeError('Cannot convert a Symbol value to a string');
  return $String$2(argument);
};

var uncurryThis$m = functionUncurryThis;
var toIntegerOrInfinity$1 = toIntegerOrInfinity$4;
var toString$9 = toString$a;
var requireObjectCoercible$2 = requireObjectCoercible$5;

var charAt$3 = uncurryThis$m(''.charAt);
var charCodeAt$1 = uncurryThis$m(''.charCodeAt);
var stringSlice = uncurryThis$m(''.slice);

var createMethod$4 = function (CONVERT_TO_STRING) {
  return function ($this, pos) {
    var S = toString$9(requireObjectCoercible$2($this));
    var position = toIntegerOrInfinity$1(pos);
    var size = S.length;
    var first, second;
    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;
    first = charCodeAt$1(S, position);
    return first < 0xD800 || first > 0xDBFF || position + 1 === size
      || (second = charCodeAt$1(S, position + 1)) < 0xDC00 || second > 0xDFFF
        ? CONVERT_TO_STRING
          ? charAt$3(S, position)
          : first
        : CONVERT_TO_STRING
          ? stringSlice(S, position, position + 2)
          : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;
  };
};

var stringMultibyte = {
  // `String.prototype.codePointAt` method
  // https://tc39.es/ecma262/#sec-string.prototype.codepointat
  codeAt: createMethod$4(false),
  // `String.prototype.at` method
  // https://github.com/mathiasbynens/String.prototype.at
  charAt: createMethod$4(true)
};

var global$d = global$l;
var isCallable$9 = isCallable$i;

var WeakMap$1$1 = global$d.WeakMap;

var weakMapBasicDetection = isCallable$9(WeakMap$1$1) && /native code/.test(String(WeakMap$1$1));

var shared$5 = sharedExports;
var uid$2 = uid$4;

var keys$3 = shared$5('keys');

var sharedKey$4 = function (key) {
  return keys$3[key] || (keys$3[key] = uid$2(key));
};

var NATIVE_WEAK_MAP$1 = weakMapBasicDetection;
var global$c = global$l;
var isObject$d = isObject$j;
var createNonEnumerableProperty$4 = createNonEnumerableProperty$6;
var hasOwn$c = hasOwnProperty_1;
var shared$4 = sharedStore;
var sharedKey$3 = sharedKey$4;
var hiddenKeys$4 = hiddenKeys$6;

var OBJECT_ALREADY_INITIALIZED = 'Object already initialized';
var TypeError$2 = global$c.TypeError;
var WeakMap$2 = global$c.WeakMap;
var set$3, get$7, has;

var enforce = function (it) {
  return has(it) ? get$7(it) : set$3(it, {});
};

if (NATIVE_WEAK_MAP$1 || shared$4.state) {
  var store$1 = shared$4.state || (shared$4.state = new WeakMap$2());
  /* eslint-disable no-self-assign -- prototype methods protection */
  store$1.get = store$1.get;
  store$1.has = store$1.has;
  store$1.set = store$1.set;
  /* eslint-enable no-self-assign -- prototype methods protection */
  set$3 = function (it, metadata) {
    if (store$1.has(it)) throw TypeError$2(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    store$1.set(it, metadata);
    return metadata;
  };
  get$7 = function (it) {
    return store$1.get(it) || {};
  };
  has = function (it) {
    return store$1.has(it);
  };
} else {
  var STATE = sharedKey$3('state');
  hiddenKeys$4[STATE] = true;
  set$3 = function (it, metadata) {
    if (hasOwn$c(it, STATE)) throw TypeError$2(OBJECT_ALREADY_INITIALIZED);
    metadata.facade = it;
    createNonEnumerableProperty$4(it, STATE, metadata);
    return metadata;
  };
  get$7 = function (it) {
    return hasOwn$c(it, STATE) ? it[STATE] : {};
  };
  has = function (it) {
    return hasOwn$c(it, STATE);
  };
}

var internalState = {
  set: set$3,
  get: get$7,
  has: has,
  enforce: enforce,
  getterFor: getterFor
};

var DESCRIPTORS$c = descriptors;
var hasOwn$b = hasOwnProperty_1;

var FunctionPrototype = Function.prototype;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getDescriptor = DESCRIPTORS$c && Object.getOwnPropertyDescriptor;

var EXISTS = hasOwn$b(FunctionPrototype, 'name');
// additional protection from minified / mangled / dropped function names
var PROPER = EXISTS && (function something() { /* empty */ }).name === 'something';
var CONFIGURABLE = EXISTS && (!DESCRIPTORS$c || (DESCRIPTORS$c && getDescriptor(FunctionPrototype, 'name').configurable));

var functionName = {
  EXISTS: EXISTS,
  PROPER: PROPER,
  CONFIGURABLE: CONFIGURABLE
};

var objectDefineProperties = {};

var DESCRIPTORS$b = descriptors;
var V8_PROTOTYPE_DEFINE_BUG = v8PrototypeDefineBug;
var definePropertyModule$2 = objectDefineProperty;
var anObject$b = anObject$d;
var toIndexedObject$7 = toIndexedObject$b;
var objectKeys$2 = objectKeys$4;

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
objectDefineProperties.f = DESCRIPTORS$b && !V8_PROTOTYPE_DEFINE_BUG ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject$b(O);
  var props = toIndexedObject$7(Properties);
  var keys = objectKeys$2(Properties);
  var length = keys.length;
  var index = 0;
  var key;
  while (length > index) definePropertyModule$2.f(O, key = keys[index++], props[key]);
  return O;
};

var getBuiltIn$a = getBuiltIn$c;

var html$1 = getBuiltIn$a('document', 'documentElement');

/* global ActiveXObject -- old IE, WSH */

var anObject$a = anObject$d;
var definePropertiesModule$1 = objectDefineProperties;
var enumBugKeys$1 = enumBugKeys$3;
var hiddenKeys$3 = hiddenKeys$6;
var html = html$1;
var documentCreateElement = documentCreateElement$1;
var sharedKey$2 = sharedKey$4;

var GT = '>';
var LT = '<';
var PROTOTYPE$1 = 'prototype';
var SCRIPT = 'script';
var IE_PROTO$1 = sharedKey$2('IE_PROTO');

var EmptyConstructor = function () { /* empty */ };

var scriptTag = function (content) {
  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;
};

// Create object with fake `null` prototype: use ActiveX Object with cleared prototype
var NullProtoObjectViaActiveX = function (activeXDocument) {
  activeXDocument.write(scriptTag(''));
  activeXDocument.close();
  var temp = activeXDocument.parentWindow.Object;
  activeXDocument = null; // avoid memory leak
  return temp;
};

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var NullProtoObjectViaIFrame = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = documentCreateElement('iframe');
  var JS = 'java' + SCRIPT + ':';
  var iframeDocument;
  iframe.style.display = 'none';
  html.appendChild(iframe);
  // https://github.com/zloirock/core-js/issues/475
  iframe.src = String(JS);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(scriptTag('document.F=Object'));
  iframeDocument.close();
  return iframeDocument.F;
};

// Check for document.domain and active x support
// No need to use active x approach when document.domain is not set
// see https://github.com/es-shims/es5-shim/issues/150
// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346
// avoid IE GC bug
var activeXDocument;
var NullProtoObject = function () {
  try {
    activeXDocument = new ActiveXObject('htmlfile');
  } catch (error) { /* ignore */ }
  NullProtoObject = typeof document != 'undefined'
    ? document.domain && activeXDocument
      ? NullProtoObjectViaActiveX(activeXDocument) // old IE
      : NullProtoObjectViaIFrame()
    : NullProtoObjectViaActiveX(activeXDocument); // WSH
  var length = enumBugKeys$1.length;
  while (length--) delete NullProtoObject[PROTOTYPE$1][enumBugKeys$1[length]];
  return NullProtoObject();
};

hiddenKeys$3[IE_PROTO$1] = true;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
// eslint-disable-next-line es/no-object-create -- safe
var objectCreate = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    EmptyConstructor[PROTOTYPE$1] = anObject$a(O);
    result = new EmptyConstructor();
    EmptyConstructor[PROTOTYPE$1] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO$1] = O;
  } else result = NullProtoObject();
  return Properties === undefined ? result : definePropertiesModule$1.f(result, Properties);
};

var fails$n = fails$w;

var correctPrototypeGetter = !fails$n(function () {
  function F() { /* empty */ }
  F.prototype.constructor = null;
  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
  return Object.getPrototypeOf(new F()) !== F.prototype;
});

var hasOwn$a = hasOwnProperty_1;
var isCallable$8 = isCallable$i;
var toObject$a = toObject$d;
var sharedKey$1 = sharedKey$4;
var CORRECT_PROTOTYPE_GETTER$1 = correctPrototypeGetter;

var IE_PROTO = sharedKey$1('IE_PROTO');
var $Object$1 = Object;
var ObjectPrototype$2 = $Object$1.prototype;

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
// eslint-disable-next-line es/no-object-getprototypeof -- safe
var objectGetPrototypeOf = CORRECT_PROTOTYPE_GETTER$1 ? $Object$1.getPrototypeOf : function (O) {
  var object = toObject$a(O);
  if (hasOwn$a(object, IE_PROTO)) return object[IE_PROTO];
  var constructor = object.constructor;
  if (isCallable$8(constructor) && object instanceof constructor) {
    return constructor.prototype;
  } return object instanceof $Object$1 ? ObjectPrototype$2 : null;
};

var createNonEnumerableProperty$3 = createNonEnumerableProperty$6;

var defineBuiltIn$5 = function (target, key, value, options) {
  if (options && options.enumerable) target[key] = value;
  else createNonEnumerableProperty$3(target, key, value);
  return target;
};

var fails$m = fails$w;
var isCallable$7 = isCallable$i;
var isObject$c = isObject$j;
var create$b = objectCreate;
var getPrototypeOf$9 = objectGetPrototypeOf;
var defineBuiltIn$4 = defineBuiltIn$5;
var wellKnownSymbol$h = wellKnownSymbol$l;

var ITERATOR$6 = wellKnownSymbol$h('iterator');
var BUGGY_SAFARI_ITERATORS$1 = false;

// `%IteratorPrototype%` object
// https://tc39.es/ecma262/#sec-%iteratorprototype%-object
var IteratorPrototype$1, PrototypeOfArrayIteratorPrototype, arrayIterator;

/* eslint-disable es/no-array-prototype-keys -- safe */
if ([].keys) {
  arrayIterator = [].keys();
  // Safari 8 has buggy iterators w/o `next`
  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS$1 = true;
  else {
    PrototypeOfArrayIteratorPrototype = getPrototypeOf$9(getPrototypeOf$9(arrayIterator));
    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype$1 = PrototypeOfArrayIteratorPrototype;
  }
}

var NEW_ITERATOR_PROTOTYPE = !isObject$c(IteratorPrototype$1) || fails$m(function () {
  var test = {};
  // FF44- legacy iterators case
  return IteratorPrototype$1[ITERATOR$6].call(test) !== test;
});

if (NEW_ITERATOR_PROTOTYPE) IteratorPrototype$1 = {};
else IteratorPrototype$1 = create$b(IteratorPrototype$1);

// `%IteratorPrototype%[@@iterator]()` method
// https://tc39.es/ecma262/#sec-%iteratorprototype%-@@iterator
if (!isCallable$7(IteratorPrototype$1[ITERATOR$6])) {
  defineBuiltIn$4(IteratorPrototype$1, ITERATOR$6, function () {
    return this;
  });
}

var iteratorsCore = {
  IteratorPrototype: IteratorPrototype$1,
  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS$1
};

var TO_STRING_TAG_SUPPORT$1 = toStringTagSupport;
var classof$b = classof$d;

// `Object.prototype.toString` method implementation
// https://tc39.es/ecma262/#sec-object.prototype.tostring
var objectToString = TO_STRING_TAG_SUPPORT$1 ? {}.toString : function toString() {
  return '[object ' + classof$b(this) + ']';
};

var TO_STRING_TAG_SUPPORT = toStringTagSupport;
var defineProperty$d = objectDefineProperty.f;
var createNonEnumerableProperty$2 = createNonEnumerableProperty$6;
var hasOwn$9 = hasOwnProperty_1;
var toString$8 = objectToString;
var wellKnownSymbol$g = wellKnownSymbol$l;

var TO_STRING_TAG$1 = wellKnownSymbol$g('toStringTag');

var iterators = {};

var IteratorPrototype = iteratorsCore.IteratorPrototype;
var create$a = objectCreate;
var createPropertyDescriptor$2 = createPropertyDescriptor$5;
var setToStringTag$5 = setToStringTag$6;
var Iterators$5 = iterators;

var returnThis$1 = function () { return this; };

var iteratorCreateConstructor = function (IteratorConstructor, NAME, next, ENUMERABLE_NEXT) {
  var TO_STRING_TAG = NAME + ' Iterator';
  IteratorConstructor.prototype = create$a(IteratorPrototype, { next: createPropertyDescriptor$2(+!ENUMERABLE_NEXT, next) });
  setToStringTag$5(IteratorConstructor, TO_STRING_TAG, false, true);
  Iterators$5[TO_STRING_TAG] = returnThis$1;
  return IteratorConstructor;
};

var uncurryThis$l = functionUncurryThis;
var aCallable$3 = aCallable$7;

var functionUncurryThisAccessor = function (object, key, method) {
  try {
    // eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
    return uncurryThis$l(aCallable$3(Object.getOwnPropertyDescriptor(object, key)[method]));
  } catch (error) { /* empty */ }
};

var isCallable$6 = isCallable$i;

var $String$1 = String;
var $TypeError$a = TypeError;

var aPossiblePrototype$1 = function (argument) {
  if (typeof argument == 'object' || isCallable$6(argument)) return argument;
  throw $TypeError$a("Can't set " + $String$1(argument) + ' as a prototype');
};

/* eslint-disable no-proto -- safe */

var uncurryThisAccessor = functionUncurryThisAccessor;
var anObject$9 = anObject$d;
var aPossiblePrototype = aPossiblePrototype$1;

// `Object.setPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.setprototypeof
// Works with __proto__ only. Old v8 can't work with null proto objects.
// eslint-disable-next-line es/no-object-setprototypeof -- safe
var objectSetPrototypeOf = Object.setPrototypeOf || ('__proto__' in {} ? function () {
  var CORRECT_SETTER = false;
  var test = {};
  var setter;
  try {
    setter = uncurryThisAccessor(Object.prototype, '__proto__', 'set');
    setter(test, []);
    CORRECT_SETTER = test instanceof Array;
  } catch (error) { /* empty */ }
  return function setPrototypeOf(O, proto) {
    anObject$9(O);
    aPossiblePrototype(proto);
    if (CORRECT_SETTER) setter(O, proto);
    else O.__proto__ = proto;
    return O;
  };
}() : undefined);

var $$M = _export;
var call$8 = functionCall;
var FunctionName = functionName;
var createIteratorConstructor = iteratorCreateConstructor;
var getPrototypeOf$8 = objectGetPrototypeOf;
var setToStringTag$4 = setToStringTag$6;
var defineBuiltIn$3 = defineBuiltIn$5;
var wellKnownSymbol$f = wellKnownSymbol$l;
var Iterators$4 = iterators;
var IteratorsCore = iteratorsCore;

var PROPER_FUNCTION_NAME$1 = FunctionName.PROPER;
var BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;
var ITERATOR$5 = wellKnownSymbol$f('iterator');
var KEYS = 'keys';
var VALUES = 'values';
var ENTRIES = 'entries';

var returnThis = function () { return this; };

var iteratorDefine = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {
  createIteratorConstructor(IteratorConstructor, NAME, next);

var TO_STRING_TAG = NAME + ' Iterator';
  var INCORRECT_VALUES_NAME = false;
  var IterablePrototype = Iterable.prototype;
  var nativeIterator = IterablePrototype[ITERATOR$5]
    || IterablePrototype['@@iterator']
    || DEFAULT && IterablePrototype[DEFAULT];
  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);
  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;
  var CurrentIteratorPrototype, methods, KEY;

// fix native
  if (anyNativeIterator) {
    CurrentIteratorPrototype = getPrototypeOf$8(anyNativeIterator.call(new Iterable()));
    if (CurrentIteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {
      // Set @@toStringTag to native iterators
      setToStringTag$4(CurrentIteratorPrototype, TO_STRING_TAG, true, true);
      Iterators$4[TO_STRING_TAG] = returnThis;
    }
  }

// fix Array.prototype.{ values, @@iterator }.name in V8 / FF
  if (PROPER_FUNCTION_NAME$1 && DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {
    {
      INCORRECT_VALUES_NAME = true;
      defaultIterator = function values() { return call$8(nativeIterator, this); };
    }
  }

// export additional methods
  if (DEFAULT) {
    methods = {
      values: getIterationMethod(VALUES),
      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),
      entries: getIterationMethod(ENTRIES)
    };
    if (FORCED) for (KEY in methods) {
      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {
        defineBuiltIn$3(IterablePrototype, KEY, methods[KEY]);
      }
    } else $$M({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);
  }

// define iterator
  if ((FORCED) && IterablePrototype[ITERATOR$5] !== defaultIterator) {
    defineBuiltIn$3(IterablePrototype, ITERATOR$5, defaultIterator, { name: DEFAULT });
  }
  Iterators$4[NAME] = defaultIterator;

return methods;
};

// `CreateIterResultObject` abstract operation
// https://tc39.es/ecma262/#sec-createiterresultobject
var createIterResultObject$3 = function (value, done) {
  return { value: value, done: done };
};

var charAt$2 = stringMultibyte.charAt;
var toString$7 = toString$a;
var InternalStateModule$5 = internalState;
var defineIterator$2 = iteratorDefine;
var createIterResultObject$2 = createIterResultObject$3;

var STRING_ITERATOR = 'String Iterator';
var setInternalState$5 = InternalStateModule$5.set;
var getInternalState$2 = InternalStateModule$5.getterFor(STRING_ITERATOR);

// `String.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-string.prototype-@@iterator
defineIterator$2(String, 'String', function (iterated) {
  setInternalState$5(this, {
    type: STRING_ITERATOR,
    string: toString$7(iterated),
    index: 0
  });
// `%StringIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%stringiteratorprototype%.next
}, function next() {
  var state = getInternalState$2(this);
  var string = state.string;
  var index = state.index;
  var point;
  if (index >= string.length) return createIterResultObject$2(undefined, true);
  point = charAt$2(string, index);
  state.index += point.length;
  return createIterResultObject$2(point, false);
});

var call$7 = functionCall;
var anObject$8 = anObject$d;
var getMethod$1 = getMethod$3;

var anObject$7 = anObject$d;
var iteratorClose$1 = iteratorClose$2;

// call something on iterator step with safe closing on error
var callWithSafeIterationClosing$1 = function (iterator, fn, value, ENTRIES) {
  try {
    return ENTRIES ? fn(anObject$7(value)[0], value[1]) : fn(value);
  } catch (error) {
    iteratorClose$1(iterator, 'throw', error);
  }
};

var wellKnownSymbol$e = wellKnownSymbol$l;
var Iterators$3 = iterators;

var ITERATOR$4 = wellKnownSymbol$e('iterator');
var ArrayPrototype$f = Array.prototype;

// check on default Array iterator
var isArrayIteratorMethod$2 = function (it) {
  return it !== undefined && (Iterators$3.Array === it || ArrayPrototype$f[ITERATOR$4] === it);
};

var uncurryThis$k = functionUncurryThis;
var isCallable$5 = isCallable$i;
var store = sharedStore;

var functionToString = uncurryThis$k(Function.toString);

// this helper broken in `core-js@3.4.1-3.4.4`, so we can't use `shared` helper
if (!isCallable$5(store.inspectSource)) {
  store.inspectSource = function (it) {
    return functionToString(it);
  };
}

var inspectSource$1 = store.inspectSource;

var uncurryThis$j = functionUncurryThis;
var fails$l = fails$w;
var isCallable$4 = isCallable$i;
var classof$a = classof$d;
var getBuiltIn$9 = getBuiltIn$c;
var inspectSource = inspectSource$1;

var noop$1 = function () { /* empty */ };
var empty = [];
var construct$3 = getBuiltIn$9('Reflect', 'construct');
var constructorRegExp = /^\s*(?:class|function)\b/;
var exec$2 = uncurryThis$j(constructorRegExp.exec);
var INCORRECT_TO_STRING = !constructorRegExp.exec(noop$1);

isConstructorLegacy.sham = true;

// `IsConstructor` abstract operation
// https://tc39.es/ecma262/#sec-isconstructor
var isConstructor$4 = !construct$3 || fails$l(function () {
  var called;
  return isConstructorModern(isConstructorModern.call)
    || !isConstructorModern(Object)
    || !isConstructorModern(function () { called = true; })
    || called;
}) ? isConstructorLegacy : isConstructorModern;

var toPropertyKey$1 = toPropertyKey$4;
var definePropertyModule$1 = objectDefineProperty;
var createPropertyDescriptor$1 = createPropertyDescriptor$5;

var createProperty$6 = function (object, key, value) {
  var propertyKey = toPropertyKey$1(key);
  if (propertyKey in object) definePropertyModule$1.f(object, propertyKey, createPropertyDescriptor$1(0, value));
  else object[propertyKey] = value;
};

var classof$9 = classof$d;
var getMethod = getMethod$3;
var isNullOrUndefined$2 = isNullOrUndefined$5;
var Iterators$2 = iterators;
var wellKnownSymbol$d = wellKnownSymbol$l;

var ITERATOR$3 = wellKnownSymbol$d('iterator');

var getIteratorMethod$9 = function (it) {
  if (!isNullOrUndefined$2(it)) return getMethod(it, ITERATOR$3)
    || getMethod(it, '@@iterator')
    || Iterators$2[classof$9(it)];
};

var call$6 = functionCall;
var aCallable$2 = aCallable$7;
var anObject$6 = anObject$d;
var tryToString$4 = tryToString$6;
var getIteratorMethod$8 = getIteratorMethod$9;

var $TypeError$9 = TypeError;

var getIterator$2 = function (argument, usingIterator) {
  var iteratorMethod = arguments.length < 2 ? getIteratorMethod$8(argument) : usingIterator;
  if (aCallable$2(iteratorMethod)) return anObject$6(call$6(iteratorMethod, argument));
  throw $TypeError$9(tryToString$4(argument) + ' is not iterable');
};

var bind$8 = functionBindContext;
var call$5 = functionCall;
var toObject$9 = toObject$d;
var callWithSafeIterationClosing = callWithSafeIterationClosing$1;
var isArrayIteratorMethod$1 = isArrayIteratorMethod$2;
var isConstructor$3 = isConstructor$4;
var lengthOfArrayLike$9 = lengthOfArrayLike$b;
var createProperty$5 = createProperty$6;
var getIterator$1 = getIterator$2;
var getIteratorMethod$7 = getIteratorMethod$9;

var $Array$3 = Array;

// `Array.from` method implementation
// https://tc39.es/ecma262/#sec-array.from
var arrayFrom = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {
  var O = toObject$9(arrayLike);
  var IS_CONSTRUCTOR = isConstructor$3(this);
  var argumentsLength = arguments.length;
  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
  var mapping = mapfn !== undefined;
  if (mapping) mapfn = bind$8(mapfn, argumentsLength > 2 ? arguments[2] : undefined);
  var iteratorMethod = getIteratorMethod$7(O);
  var index = 0;
  var length, result, step, iterator, next, value;
  // if the target is not iterable or it's an array with the default iterator - use a simple case
  if (iteratorMethod && !(this === $Array$3 && isArrayIteratorMethod$1(iteratorMethod))) {
    iterator = getIterator$1(O, iteratorMethod);
    next = iterator.next;
    result = IS_CONSTRUCTOR ? new this() : [];
    for (;!(step = call$5(next, iterator)).done; index++) {
      value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;
      createProperty$5(result, index, value);
    }
  } else {
    length = lengthOfArrayLike$9(O);
    result = IS_CONSTRUCTOR ? new this(length) : $Array$3(length);
    for (;length > index; index++) {
      value = mapping ? mapfn(O[index], index) : O[index];
      createProperty$5(result, index, value);
    }
  }
  result.length = index;
  return result;
};

var wellKnownSymbol$c = wellKnownSymbol$l;

var ITERATOR$2 = wellKnownSymbol$c('iterator');
var SAFE_CLOSING = false;

try {
  var called = 0;
  var iteratorWithReturn = {
    next: function () {
      return { done: !!called++ };
    },
    'return': function () {
      SAFE_CLOSING = true;
    }
  };
  iteratorWithReturn[ITERATOR$2] = function () {
    return this;
  };
  // eslint-disable-next-line es/no-array-from, no-throw-literal -- required for testing
  Array.from(iteratorWithReturn, function () { throw 2; });
} catch (error) { /* empty */ }

var $$L = _export;
var from$6 = arrayFrom;
var checkCorrectnessOfIteration = checkCorrectnessOfIteration$1;

var INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {
  // eslint-disable-next-line es/no-array-from -- required for testing
  Array.from(iterable);
});

// `Array.from` method
// https://tc39.es/ecma262/#sec-array.from
$$L({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {
  from: from$6
});

var path$t = path$y;

var from$5 = path$t.Array.from;

var parent$19 = from$5;

var from$4 = parent$19;

(function (module) {
	module.exports = from$4;
} (from$7));

var _Array$from$1 = /*@__PURE__*/getDefaultExportFromCjs$1(fromExports$2);

var getIteratorMethodExports$1 = {};
var getIteratorMethod$6 = {
  get exports(){ return getIteratorMethodExports$1; },
  set exports(v){ getIteratorMethodExports$1 = v; },
};

var getIteratorMethodExports = {};
var getIteratorMethod$5 = {
  get exports(){ return getIteratorMethodExports; },
  set exports(v){ getIteratorMethodExports = v; },
};

var toIndexedObject$6 = toIndexedObject$b;
var Iterators$1 = iterators;
var InternalStateModule$4 = internalState;
objectDefineProperty.f;
var defineIterator$1 = iteratorDefine;
var createIterResultObject$1 = createIterResultObject$3;

var ARRAY_ITERATOR = 'Array Iterator';
var setInternalState$4 = InternalStateModule$4.set;
var getInternalState$1 = InternalStateModule$4.getterFor(ARRAY_ITERATOR);

// `Array.prototype.entries` method
// https://tc39.es/ecma262/#sec-array.prototype.entries
// `Array.prototype.keys` method
// https://tc39.es/ecma262/#sec-array.prototype.keys
// `Array.prototype.values` method
// https://tc39.es/ecma262/#sec-array.prototype.values
// `Array.prototype[@@iterator]` method
// https://tc39.es/ecma262/#sec-array.prototype-@@iterator
// `CreateArrayIterator` internal method
// https://tc39.es/ecma262/#sec-createarrayiterator
defineIterator$1(Array, 'Array', function (iterated, kind) {
  setInternalState$4(this, {
    type: ARRAY_ITERATOR,
    target: toIndexedObject$6(iterated), // target
    index: 0,                          // next index
    kind: kind                         // kind
  });
// `%ArrayIteratorPrototype%.next` method
// https://tc39.es/ecma262/#sec-%arrayiteratorprototype%.next
}, function () {
  var state = getInternalState$1(this);
  var target = state.target;
  var kind = state.kind;
  var index = state.index++;
  if (!target || index >= target.length) {
    state.target = undefined;
    return createIterResultObject$1(undefined, true);
  }
  if (kind == 'keys') return createIterResultObject$1(index, false);
  if (kind == 'values') return createIterResultObject$1(target[index], false);
  return createIterResultObject$1([index, target[index]], false);
}, 'values');

var getIteratorMethod$4 = getIteratorMethod$9;

var getIteratorMethod_1 = getIteratorMethod$4;

// iterable DOM collections
// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods
var domIterables = {
  CSSRuleList: 0,
  CSSStyleDeclaration: 0,
  CSSValueList: 0,
  ClientRectList: 0,
  DOMRectList: 0,
  DOMStringList: 0,
  DOMTokenList: 1,
  DataTransferItemList: 0,
  FileList: 0,
  HTMLAllCollection: 0,
  HTMLCollection: 0,
  HTMLFormElement: 0,
  HTMLSelectElement: 0,
  MediaList: 0,
  MimeTypeArray: 0,
  NamedNodeMap: 0,
  NodeList: 1,
  PaintRequestList: 0,
  Plugin: 0,
  PluginArray: 0,
  SVGLengthList: 0,
  SVGNumberList: 0,
  SVGPathSegList: 0,
  SVGPointList: 0,
  SVGStringList: 0,
  SVGTransformList: 0,
  SourceBufferList: 0,
  StyleSheetList: 0,
  TextTrackCueList: 0,
  TextTrackList: 0,
  TouchList: 0
};

var DOMIterables$2 = domIterables;
var global$b = global$l;
var classof$8 = classof$d;
var createNonEnumerableProperty$1 = createNonEnumerableProperty$6;
var Iterators = iterators;
var wellKnownSymbol$b = wellKnownSymbol$l;

var TO_STRING_TAG = wellKnownSymbol$b('toStringTag');

for (var COLLECTION_NAME in DOMIterables$2) {
  var Collection = global$b[COLLECTION_NAME];
  var CollectionPrototype = Collection && Collection.prototype;
  if (CollectionPrototype && classof$8(CollectionPrototype) !== TO_STRING_TAG) {
    createNonEnumerableProperty$1(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);
  }
  Iterators[COLLECTION_NAME] = Iterators.Array;
}

var parent$18 = getIteratorMethod_1;

var getIteratorMethod$3 = parent$18;

var parent$17 = getIteratorMethod$3;

var getIteratorMethod$2 = parent$17;

var parent$16 = getIteratorMethod$2;

var getIteratorMethod$1 = parent$16;

(function (module) {
	module.exports = getIteratorMethod$1;
} (getIteratorMethod$5));

(function (module) {
	module.exports = getIteratorMethodExports;
} (getIteratorMethod$6));

var _getIteratorMethod = /*@__PURE__*/getDefaultExportFromCjs$1(getIteratorMethodExports$1);

var getOwnPropertySymbolsExports = {};
var getOwnPropertySymbols$2 = {
  get exports(){ return getOwnPropertySymbolsExports; },
  set exports(v){ getOwnPropertySymbolsExports = v; },
};

var objectGetOwnPropertyNames = {};

var internalObjectKeys = objectKeysInternal;
var enumBugKeys = enumBugKeys$3;

var hiddenKeys$2 = enumBugKeys.concat('length', 'prototype');

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
// eslint-disable-next-line es/no-object-getownpropertynames -- safe
objectGetOwnPropertyNames.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return internalObjectKeys(O, hiddenKeys$2);
};

var objectGetOwnPropertyNamesExternal = {};

var toAbsoluteIndex$3 = toAbsoluteIndex$5;
var lengthOfArrayLike$8 = lengthOfArrayLike$b;
var createProperty$4 = createProperty$6;

var $Array$2 = Array;
var max$2 = Math.max;

var arraySliceSimple = function (O, start, end) {
  var length = lengthOfArrayLike$8(O);
  var k = toAbsoluteIndex$3(start, length);
  var fin = toAbsoluteIndex$3(end === undefined ? length : end, length);
  var result = $Array$2(max$2(fin - k, 0));
  for (var n = 0; k < fin; k++, n++) createProperty$4(result, n, O[k]);
  result.length = n;
  return result;
};

/* eslint-disable es/no-object-getownpropertynames -- safe */

var classof$7 = classofRaw$2;
var toIndexedObject$5 = toIndexedObject$b;
var $getOwnPropertyNames$1 = objectGetOwnPropertyNames.f;
var arraySlice$3 = arraySliceSimple;

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return $getOwnPropertyNames$1(it);
  } catch (error) {
    return arraySlice$3(windowNames);
  }
};

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
objectGetOwnPropertyNamesExternal.f = function getOwnPropertyNames(it) {
  return windowNames && classof$7(it) == 'Window'
    ? getWindowNames(it)
    : $getOwnPropertyNames$1(toIndexedObject$5(it));
};

var defineProperty$c = objectDefineProperty;

var defineBuiltInAccessor$3 = function (target, name, descriptor) {
  return defineProperty$c.f(target, name, descriptor);
};

var wellKnownSymbolWrapped = {};

var wellKnownSymbol$a = wellKnownSymbol$l;

wellKnownSymbolWrapped.f = wellKnownSymbol$a;

var path$s = path$y;
var hasOwn$8 = hasOwnProperty_1;
var wrappedWellKnownSymbolModule$1 = wellKnownSymbolWrapped;
var defineProperty$b = objectDefineProperty.f;

var call$4 = functionCall;
var getBuiltIn$8 = getBuiltIn$c;
var wellKnownSymbol$9 = wellKnownSymbol$l;
var defineBuiltIn$2 = defineBuiltIn$5;

var symbolDefineToPrimitive = function () {
  var Symbol = getBuiltIn$8('Symbol');
  var SymbolPrototype = Symbol && Symbol.prototype;
  var valueOf = SymbolPrototype && SymbolPrototype.valueOf;
  var TO_PRIMITIVE = wellKnownSymbol$9('toPrimitive');

if (SymbolPrototype && !SymbolPrototype[TO_PRIMITIVE]) {
    // `Symbol.prototype[@@toPrimitive]` method
    // https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
    // eslint-disable-next-line no-unused-vars -- required for .length
    defineBuiltIn$2(SymbolPrototype, TO_PRIMITIVE, function (hint) {
      return call$4(valueOf, this);
    }, { arity: 1 });
  }
};

var classof$6 = classofRaw$2;

// `IsArray` abstract operation
// https://tc39.es/ecma262/#sec-isarray
// eslint-disable-next-line es/no-array-isarray -- safe
var isArray$f = Array.isArray || function isArray(argument) {
  return classof$6(argument) == 'Array';
};

var isArray$e = isArray$f;
var isConstructor$2 = isConstructor$4;
var isObject$b = isObject$j;
var wellKnownSymbol$8 = wellKnownSymbol$l;

var SPECIES$3 = wellKnownSymbol$8('species');
var $Array$1 = Array;

// a part of `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
var arraySpeciesConstructor$1 = function (originalArray) {
  var C;
  if (isArray$e(originalArray)) {
    C = originalArray.constructor;
    // cross-realm fallback
    if (isConstructor$2(C) && (C === $Array$1 || isArray$e(C.prototype))) C = undefined;
    else if (isObject$b(C)) {
      C = C[SPECIES$3];
      if (C === null) C = undefined;
    }
  } return C === undefined ? $Array$1 : C;
};

var arraySpeciesConstructor = arraySpeciesConstructor$1;

// `ArraySpeciesCreate` abstract operation
// https://tc39.es/ecma262/#sec-arrayspeciescreate
var arraySpeciesCreate$3 = function (originalArray, length) {
  return new (arraySpeciesConstructor(originalArray))(length === 0 ? 0 : length);
};

var bind$7 = functionBindContext;
var uncurryThis$i = functionUncurryThis;
var IndexedObject$1 = indexedObject;
var toObject$8 = toObject$d;
var lengthOfArrayLike$7 = lengthOfArrayLike$b;
var arraySpeciesCreate$2 = arraySpeciesCreate$3;

var push$5 = uncurryThis$i([].push);

// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex, filterReject }` methods implementation
var createMethod$3 = function (TYPE) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var IS_FILTER_REJECT = TYPE == 7;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  return function ($this, callbackfn, that, specificCreate) {
    var O = toObject$8($this);
    var self = IndexedObject$1(O);
    var boundFunction = bind$7(callbackfn, that);
    var length = lengthOfArrayLike$7(self);
    var index = 0;
    var create = specificCreate || arraySpeciesCreate$2;
    var target = IS_MAP ? create($this, length) : IS_FILTER || IS_FILTER_REJECT ? create($this, 0) : undefined;
    var value, result;
    for (;length > index; index++) if (NO_HOLES || index in self) {
      value = self[index];
      result = boundFunction(value, index, O);
      if (TYPE) {
        if (IS_MAP) target[index] = result; // map
        else if (result) switch (TYPE) {
          case 3: return true;              // some
          case 5: return value;             // find
          case 6: return index;             // findIndex
          case 2: push$5(target, value);      // filter
        } else switch (TYPE) {
          case 4: return false;             // every
          case 7: push$5(target, value);      // filterReject
        }
      }
    }
    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;
  };
};

var arrayIteration = {
  // `Array.prototype.forEach` method
  // https://tc39.es/ecma262/#sec-array.prototype.foreach
  forEach: createMethod$3(0),
  // `Array.prototype.map` method
  // https://tc39.es/ecma262/#sec-array.prototype.map
  map: createMethod$3(1),
  // `Array.prototype.filter` method
  // https://tc39.es/ecma262/#sec-array.prototype.filter
  filter: createMethod$3(2),
  // `Array.prototype.some` method
  // https://tc39.es/ecma262/#sec-array.prototype.some
  some: createMethod$3(3),
  // `Array.prototype.every` method
  // https://tc39.es/ecma262/#sec-array.prototype.every
  every: createMethod$3(4),
  // `Array.prototype.find` method
  // https://tc39.es/ecma262/#sec-array.prototype.find
  find: createMethod$3(5),
  // `Array.prototype.findIndex` method
  // https://tc39.es/ecma262/#sec-array.prototype.findIndex
  findIndex: createMethod$3(6),
  // `Array.prototype.filterReject` method
  // https://github.com/tc39/proposal-array-filtering
  filterReject: createMethod$3(7)
};

var $$K = _export;
var global$a = global$l;
var call$3 = functionCall;
var uncurryThis$h = functionUncurryThis;
var DESCRIPTORS$a = descriptors;
var NATIVE_SYMBOL$3 = symbolConstructorDetection;
var fails$k = fails$w;
var hasOwn$7 = hasOwnProperty_1;
var isPrototypeOf$i = objectIsPrototypeOf;
var anObject$5 = anObject$d;
var toIndexedObject$4 = toIndexedObject$b;
var toPropertyKey = toPropertyKey$4;
var $toString = toString$a;
var createPropertyDescriptor = createPropertyDescriptor$5;
var nativeObjectCreate = objectCreate;
var objectKeys$1 = objectKeys$4;
var getOwnPropertyNamesModule$2 = objectGetOwnPropertyNames;
var getOwnPropertyNamesExternal = objectGetOwnPropertyNamesExternal;
var getOwnPropertySymbolsModule$2 = objectGetOwnPropertySymbols;
var getOwnPropertyDescriptorModule$2 = objectGetOwnPropertyDescriptor;
var definePropertyModule = objectDefineProperty;
var definePropertiesModule = objectDefineProperties;
var propertyIsEnumerableModule = objectPropertyIsEnumerable;
var defineBuiltIn$1 = defineBuiltIn$5;
var defineBuiltInAccessor$2 = defineBuiltInAccessor$3;
var shared$3 = sharedExports;
var sharedKey = sharedKey$4;
var hiddenKeys$1 = hiddenKeys$6;
var uid$1 = uid$4;
var wellKnownSymbol$7 = wellKnownSymbol$l;
var wrappedWellKnownSymbolModule = wellKnownSymbolWrapped;
var defineWellKnownSymbol$l = wellKnownSymbolDefine;
var defineSymbolToPrimitive$1 = symbolDefineToPrimitive;
var setToStringTag$3 = setToStringTag$6;
var InternalStateModule$3 = internalState;
var $forEach$1 = arrayIteration.forEach;

var HIDDEN = sharedKey('hidden');
var SYMBOL = 'Symbol';
var PROTOTYPE = 'prototype';

var setInternalState$3 = InternalStateModule$3.set;
var getInternalState = InternalStateModule$3.getterFor(SYMBOL);

var ObjectPrototype$1 = Object[PROTOTYPE];
var $Symbol = global$a.Symbol;
var SymbolPrototype = $Symbol && $Symbol[PROTOTYPE];
var TypeError$1 = global$a.TypeError;
var QObject = global$a.QObject;
var nativeGetOwnPropertyDescriptor$1 = getOwnPropertyDescriptorModule$2.f;
var nativeDefineProperty = definePropertyModule.f;
var nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;
var nativePropertyIsEnumerable = propertyIsEnumerableModule.f;
var push$4 = uncurryThis$h([].push);

var AllSymbols = shared$3('symbols');
var ObjectPrototypeSymbols = shared$3('op-symbols');
var WellKnownSymbolsStore$1 = shared$3('wks');

// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDescriptor = DESCRIPTORS$a && fails$k(function () {
  return nativeObjectCreate(nativeDefineProperty({}, 'a', {
    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (O, P, Attributes) {
  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor$1(ObjectPrototype$1, P);
  if (ObjectPrototypeDescriptor) delete ObjectPrototype$1[P];
  nativeDefineProperty(O, P, Attributes);
  if (ObjectPrototypeDescriptor && O !== ObjectPrototype$1) {
    nativeDefineProperty(ObjectPrototype$1, P, ObjectPrototypeDescriptor);
  }
} : nativeDefineProperty;

var wrap$1 = function (tag, description) {
  var symbol = AllSymbols[tag] = nativeObjectCreate(SymbolPrototype);
  setInternalState$3(symbol, {
    type: SYMBOL,
    tag: tag,
    description: description
  });
  if (!DESCRIPTORS$a) symbol.description = description;
  return symbol;
};

var $defineProperties = function defineProperties(O, Properties) {
  anObject$5(O);
  var properties = toIndexedObject$4(Properties);
  var keys = objectKeys$1(properties).concat($getOwnPropertySymbols(properties));
  $forEach$1(keys, function (key) {
    if (!DESCRIPTORS$a || call$3($propertyIsEnumerable$1, properties, key)) $defineProperty(O, key, properties[key]);
  });
  return O;
};

var $create = function create(O, Properties) {
  return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);
};

var $propertyIsEnumerable$1 = function propertyIsEnumerable(V) {
  var P = toPropertyKey(V);
  var enumerable = call$3(nativePropertyIsEnumerable, this, P);
  if (this === ObjectPrototype$1 && hasOwn$7(AllSymbols, P) && !hasOwn$7(ObjectPrototypeSymbols, P)) return false;
  return enumerable || !hasOwn$7(this, P) || !hasOwn$7(AllSymbols, P) || hasOwn$7(this, HIDDEN) && this[HIDDEN][P]
    ? enumerable : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {
  var it = toIndexedObject$4(O);
  var key = toPropertyKey(P);
  if (it === ObjectPrototype$1 && hasOwn$7(AllSymbols, key) && !hasOwn$7(ObjectPrototypeSymbols, key)) return;
  var descriptor = nativeGetOwnPropertyDescriptor$1(it, key);
  if (descriptor && hasOwn$7(AllSymbols, key) && !(hasOwn$7(it, HIDDEN) && it[HIDDEN][key])) {
    descriptor.enumerable = true;
  }
  return descriptor;
};

var $getOwnPropertyNames = function getOwnPropertyNames(O) {
  var names = nativeGetOwnPropertyNames(toIndexedObject$4(O));
  var result = [];
  $forEach$1(names, function (key) {
    if (!hasOwn$7(AllSymbols, key) && !hasOwn$7(hiddenKeys$1, key)) push$4(result, key);
  });
  return result;
};

// `Symbol` constructor
// https://tc39.es/ecma262/#sec-symbol-constructor
if (!NATIVE_SYMBOL$3) {
  $Symbol = function Symbol() {
    if (isPrototypeOf$i(SymbolPrototype, this)) throw TypeError$1('Symbol is not a constructor');
    var description = !arguments.length || arguments[0] === undefined ? undefined : $toString(arguments[0]);
    var tag = uid$1(description);
    var setter = function (value) {
      if (this === ObjectPrototype$1) call$3(setter, ObjectPrototypeSymbols, value);
      if (hasOwn$7(this, HIDDEN) && hasOwn$7(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));
    };
    if (DESCRIPTORS$a && USE_SETTER) setSymbolDescriptor(ObjectPrototype$1, tag, { configurable: true, set: setter });
    return wrap$1(tag, description);
  };

SymbolPrototype = $Symbol[PROTOTYPE];

defineBuiltIn$1(SymbolPrototype, 'toString', function toString() {
    return getInternalState(this).tag;
  });

defineBuiltIn$1($Symbol, 'withoutSetter', function (description) {
    return wrap$1(uid$1(description), description);
  });

propertyIsEnumerableModule.f = $propertyIsEnumerable$1;
  definePropertyModule.f = $defineProperty;
  definePropertiesModule.f = $defineProperties;
  getOwnPropertyDescriptorModule$2.f = $getOwnPropertyDescriptor;
  getOwnPropertyNamesModule$2.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;
  getOwnPropertySymbolsModule$2.f = $getOwnPropertySymbols;

wrappedWellKnownSymbolModule.f = function (name) {
    return wrap$1(wellKnownSymbol$7(name), name);
  };

if (DESCRIPTORS$a) {
    // https://github.com/tc39/proposal-Symbol-description
    defineBuiltInAccessor$2(SymbolPrototype, 'description', {
      configurable: true,
      get: function description() {
        return getInternalState(this).description;
      }
    });
  }
}

$$K({ global: true, constructor: true, wrap: true, forced: !NATIVE_SYMBOL$3, sham: !NATIVE_SYMBOL$3 }, {
  Symbol: $Symbol
});

$forEach$1(objectKeys$1(WellKnownSymbolsStore$1), function (name) {
  defineWellKnownSymbol$l(name);
});

$$K({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL$3 }, {
  useSetter: function () { USE_SETTER = true; },
  useSimple: function () { USE_SETTER = false; }
});

$$K({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL$3, sham: !DESCRIPTORS$a }, {
  // `Object.create` method
  // https://tc39.es/ecma262/#sec-object.create
  create: $create,
  // `Object.defineProperty` method
  // https://tc39.es/ecma262/#sec-object.defineproperty
  defineProperty: $defineProperty,
  // `Object.defineProperties` method
  // https://tc39.es/ecma262/#sec-object.defineproperties
  defineProperties: $defineProperties,
  // `Object.getOwnPropertyDescriptor` method
  // https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor
});

$$K({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL$3 }, {
  // `Object.getOwnPropertyNames` method
  // https://tc39.es/ecma262/#sec-object.getownpropertynames
  getOwnPropertyNames: $getOwnPropertyNames
});

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
defineSymbolToPrimitive$1();

// `Symbol.prototype[@@toStringTag]` property
// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag$3($Symbol, SYMBOL);

hiddenKeys$1[HIDDEN] = true;

var NATIVE_SYMBOL$2 = symbolConstructorDetection;

/* eslint-disable es/no-symbol -- safe */
var symbolRegistryDetection = NATIVE_SYMBOL$2 && !!Symbol['for'] && !!Symbol.keyFor;

var $$J = _export;
var getBuiltIn$7 = getBuiltIn$c;
var hasOwn$6 = hasOwnProperty_1;
var toString$6 = toString$a;
var shared$2 = sharedExports;
var NATIVE_SYMBOL_REGISTRY$1 = symbolRegistryDetection;

var StringToSymbolRegistry = shared$2('string-to-symbol-registry');
var SymbolToStringRegistry$1 = shared$2('symbol-to-string-registry');

// `Symbol.for` method
// https://tc39.es/ecma262/#sec-symbol.for
$$J({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY$1 }, {
  'for': function (key) {
    var string = toString$6(key);
    if (hasOwn$6(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];
    var symbol = getBuiltIn$7('Symbol')(string);
    StringToSymbolRegistry[string] = symbol;
    SymbolToStringRegistry$1[symbol] = string;
    return symbol;
  }
});

var $$I = _export;
var hasOwn$5 = hasOwnProperty_1;
var isSymbol$2 = isSymbol$5;
var tryToString$3 = tryToString$6;
var shared$1 = sharedExports;
var NATIVE_SYMBOL_REGISTRY = symbolRegistryDetection;

var SymbolToStringRegistry = shared$1('symbol-to-string-registry');

// `Symbol.keyFor` method
// https://tc39.es/ecma262/#sec-symbol.keyfor
$$I({ target: 'Symbol', stat: true, forced: !NATIVE_SYMBOL_REGISTRY }, {
  keyFor: function keyFor(sym) {
    if (!isSymbol$2(sym)) throw TypeError(tryToString$3(sym) + ' is not a symbol');
    if (hasOwn$5(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];
  }
});

var uncurryThis$g = functionUncurryThis;
var isArray$d = isArray$f;
var isCallable$3 = isCallable$i;
var classof$5 = classofRaw$2;
var toString$5 = toString$a;

var push$3 = uncurryThis$g([].push);

var $$H = _export;
var getBuiltIn$6 = getBuiltIn$c;
var apply$3 = functionApply;
var call$2 = functionCall;
var uncurryThis$f = functionUncurryThis;
var fails$j = fails$w;
var isCallable$2 = isCallable$i;
var isSymbol$1 = isSymbol$5;
var arraySlice$2 = arraySlice$5;
var getReplacerFunction = getJsonReplacerFunction;
var NATIVE_SYMBOL$1 = symbolConstructorDetection;

var $String = String;
var $stringify = getBuiltIn$6('JSON', 'stringify');
var exec$1 = uncurryThis$f(/./.exec);
var charAt$1 = uncurryThis$f(''.charAt);
var charCodeAt = uncurryThis$f(''.charCodeAt);
var replace$1 = uncurryThis$f(''.replace);
var numberToString = uncurryThis$f(1.0.toString);

var tester = /[\uD800-\uDFFF]/g;
var low = /^[\uD800-\uDBFF]$/;
var hi = /^[\uDC00-\uDFFF]$/;

// https://github.com/tc39/proposal-well-formed-stringify
var ILL_FORMED_UNICODE = fails$j(function () {
  return $stringify('\uDF06\uD834') !== '"\\udf06\\ud834"'
    || $stringify('\uDEAD') !== '"\\udead"';
});

var stringifyWithSymbolsFix = function (it, replacer) {
  var args = arraySlice$2(arguments);
  var $replacer = getReplacerFunction(replacer);
  if (!isCallable$2($replacer) && (it === undefined || isSymbol$1(it))) return; // IE8 returns string on undefined
  args[1] = function (key, value) {
    // some old implementations (like WebKit) could pass numbers as keys
    if (isCallable$2($replacer)) value = call$2($replacer, this, $String(key), value);
    if (!isSymbol$1(value)) return value;
  };
  return apply$3($stringify, null, args);
};

var fixIllFormed = function (match, offset, string) {
  var prev = charAt$1(string, offset - 1);
  var next = charAt$1(string, offset + 1);
  if ((exec$1(low, match) && !exec$1(hi, next)) || (exec$1(hi, match) && !exec$1(low, prev))) {
    return '\\u' + numberToString(charCodeAt(match, 0), 16);
  } return match;
};

if ($stringify) {
  // `JSON.stringify` method
  // https://tc39.es/ecma262/#sec-json.stringify
  $$H({ target: 'JSON', stat: true, arity: 3, forced: WRONG_SYMBOLS_CONVERSION || ILL_FORMED_UNICODE }, {
    // eslint-disable-next-line no-unused-vars -- required for `.length`
    stringify: function stringify(it, replacer, space) {
      var args = arraySlice$2(arguments);
      var result = apply$3(WRONG_SYMBOLS_CONVERSION ? stringifyWithSymbolsFix : $stringify, null, args);
      return ILL_FORMED_UNICODE && typeof result == 'string' ? replace$1(result, tester, fixIllFormed) : result;
    }
  });
}

var $$G = _export;
var NATIVE_SYMBOL = symbolConstructorDetection;
var fails$i = fails$w;
var getOwnPropertySymbolsModule$1 = objectGetOwnPropertySymbols;
var toObject$7 = toObject$d;

// V8 ~ Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
// https://bugs.chromium.org/p/v8/issues/detail?id=3443
var FORCED$9 = !NATIVE_SYMBOL || fails$i(function () { getOwnPropertySymbolsModule$1.f(1); });

// `Object.getOwnPropertySymbols` method
// https://tc39.es/ecma262/#sec-object.getownpropertysymbols
$$G({ target: 'Object', stat: true, forced: FORCED$9 }, {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    var $getOwnPropertySymbols = getOwnPropertySymbolsModule$1.f;
    return $getOwnPropertySymbols ? $getOwnPropertySymbols(toObject$7(it)) : [];
  }
});

var path$r = path$y;

var getOwnPropertySymbols$1 = path$r.Object.getOwnPropertySymbols;

var parent$15 = getOwnPropertySymbols$1;

var getOwnPropertySymbols = parent$15;

(function (module) {
	module.exports = getOwnPropertySymbols;
} (getOwnPropertySymbols$2));

var _Object$getOwnPropertySymbols = /*@__PURE__*/getDefaultExportFromCjs$1(getOwnPropertySymbolsExports);

var $$F = _export;
var fails$h = fails$w;
var toIndexedObject$3 = toIndexedObject$b;
var nativeGetOwnPropertyDescriptor = objectGetOwnPropertyDescriptor.f;
var DESCRIPTORS$9 = descriptors;

var FORCED$8 = !DESCRIPTORS$9 || fails$h(function () { nativeGetOwnPropertyDescriptor(1); });

// `Object.getOwnPropertyDescriptor` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptor
$$F({ target: 'Object', stat: true, forced: FORCED$8, sham: !DESCRIPTORS$9 }, {
  getOwnPropertyDescriptor: function getOwnPropertyDescriptor(it, key) {
    return nativeGetOwnPropertyDescriptor(toIndexedObject$3(it), key);
  }
});

var path$q = path$y;

var Object$5 = path$q.Object;

var getOwnPropertyDescriptor$6 = getOwnPropertyDescriptor$7.exports = function getOwnPropertyDescriptor(it, key) {
  return Object$5.getOwnPropertyDescriptor(it, key);
};

if (Object$5.getOwnPropertyDescriptor.sham) getOwnPropertyDescriptor$6.sham = true;

var parent$14 = getOwnPropertyDescriptorExports$2;

var getOwnPropertyDescriptor$5 = parent$14;

(function (module) {
	module.exports = getOwnPropertyDescriptor$5;
} (getOwnPropertyDescriptor$8));

var _Object$getOwnPropertyDescriptor$1 = /*@__PURE__*/getDefaultExportFromCjs$1(getOwnPropertyDescriptorExports$3);

var getBuiltIn$5 = getBuiltIn$c;
var uncurryThis$e = functionUncurryThis;
var getOwnPropertyNamesModule$1 = objectGetOwnPropertyNames;
var getOwnPropertySymbolsModule = objectGetOwnPropertySymbols;
var anObject$4 = anObject$d;

var concat$4 = uncurryThis$e([].concat);

// all object keys, includes non-enumerable and symbols
var ownKeys$9 = getBuiltIn$5('Reflect', 'ownKeys') || function ownKeys(it) {
  var keys = getOwnPropertyNamesModule$1.f(anObject$4(it));
  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;
  return getOwnPropertySymbols ? concat$4(keys, getOwnPropertySymbols(it)) : keys;
};

var $$E = _export;
var DESCRIPTORS$8 = descriptors;
var ownKeys$8 = ownKeys$9;
var toIndexedObject$2 = toIndexedObject$b;
var getOwnPropertyDescriptorModule$1 = objectGetOwnPropertyDescriptor;
var createProperty$3 = createProperty$6;

// `Object.getOwnPropertyDescriptors` method
// https://tc39.es/ecma262/#sec-object.getownpropertydescriptors
$$E({ target: 'Object', stat: true, sham: !DESCRIPTORS$8 }, {
  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {
    var O = toIndexedObject$2(object);
    var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule$1.f;
    var keys = ownKeys$8(O);
    var result = {};
    var index = 0;
    var key, descriptor;
    while (keys.length > index) {
      descriptor = getOwnPropertyDescriptor(O, key = keys[index++]);
      if (descriptor !== undefined) createProperty$3(result, key, descriptor);
    }
    return result;
  }
});

var path$p = path$y;

var getOwnPropertyDescriptors$1 = path$p.Object.getOwnPropertyDescriptors;

var parent$13 = getOwnPropertyDescriptors$1;

var getOwnPropertyDescriptors = parent$13;

(function (module) {
	module.exports = getOwnPropertyDescriptors;
} (getOwnPropertyDescriptors$2));

var _Object$getOwnPropertyDescriptors = /*@__PURE__*/getDefaultExportFromCjs$1(getOwnPropertyDescriptorsExports);

var definePropertiesExports$1 = {};
var defineProperties$4 = {
  get exports(){ return definePropertiesExports$1; },
  set exports(v){ definePropertiesExports$1 = v; },
};

var definePropertiesExports = {};
var defineProperties$3 = {
  get exports(){ return definePropertiesExports; },
  set exports(v){ definePropertiesExports = v; },
};

var $$D = _export;
var DESCRIPTORS$7 = descriptors;
var defineProperties$2 = objectDefineProperties.f;

// `Object.defineProperties` method
// https://tc39.es/ecma262/#sec-object.defineproperties
// eslint-disable-next-line es/no-object-defineproperties -- safe
$$D({ target: 'Object', stat: true, forced: Object.defineProperties !== defineProperties$2, sham: !DESCRIPTORS$7 }, {
  defineProperties: defineProperties$2
});

var path$o = path$y;

var Object$4 = path$o.Object;

var defineProperties$1 = defineProperties$3.exports = function defineProperties(T, D) {
  return Object$4.defineProperties(T, D);
};

if (Object$4.defineProperties.sham) defineProperties$1.sham = true;

var parent$12 = definePropertiesExports;

var defineProperties = parent$12;

(function (module) {
	module.exports = defineProperties;
} (defineProperties$4));

var _Object$defineProperties = /*@__PURE__*/getDefaultExportFromCjs$1(definePropertiesExports$1);

var definePropertyExports$3 = {};
var defineProperty$a = {
  get exports(){ return definePropertyExports$3; },
  set exports(v){ definePropertyExports$3 = v; },
};

var definePropertyExports$2 = {};
var defineProperty$9 = {
  get exports(){ return definePropertyExports$2; },
  set exports(v){ definePropertyExports$2 = v; },
};

var $$C = _export;
var DESCRIPTORS$6 = descriptors;
var defineProperty$8 = objectDefineProperty.f;

// `Object.defineProperty` method
// https://tc39.es/ecma262/#sec-object.defineproperty
// eslint-disable-next-line es/no-object-defineproperty -- safe
$$C({ target: 'Object', stat: true, forced: Object.defineProperty !== defineProperty$8, sham: !DESCRIPTORS$6 }, {
  defineProperty: defineProperty$8
});

var path$n = path$y;

var Object$3 = path$n.Object;

var defineProperty$7 = defineProperty$9.exports = function defineProperty(it, key, desc) {
  return Object$3.defineProperty(it, key, desc);
};

if (Object$3.defineProperty.sham) defineProperty$7.sham = true;

var parent$11 = definePropertyExports$2;

var defineProperty$6 = parent$11;

(function (module) {
	module.exports = defineProperty$6;
} (defineProperty$a));

var _Object$defineProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$1(definePropertyExports$3);

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

var definePropertyExports$1 = {};
var defineProperty$5 = {
  get exports(){ return definePropertyExports$1; },
  set exports(v){ definePropertyExports$1 = v; },
};

var definePropertyExports = {};
var defineProperty$4 = {
  get exports(){ return definePropertyExports; },
  set exports(v){ definePropertyExports = v; },
};

var parent$10 = defineProperty$6;

var defineProperty$3 = parent$10;

var parent$$ = defineProperty$3;

var defineProperty$2 = parent$$;

(function (module) {
	module.exports = defineProperty$2;
} (defineProperty$4));

(function (module) {
	module.exports = definePropertyExports;
} (defineProperty$5));

var _Object$defineProperty = /*@__PURE__*/getDefaultExportFromCjs$1(definePropertyExports$1);

var symbolExports$2 = {};
var symbol$6 = {
  get exports(){ return symbolExports$2; },
  set exports(v){ symbolExports$2 = v; },
};

var symbolExports$1 = {};
var symbol$5 = {
  get exports(){ return symbolExports$1; },
  set exports(v){ symbolExports$1 = v; },
};

var $TypeError$8 = TypeError;
var MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF; // 2 ** 53 - 1 == 9007199254740991

var doesNotExceedSafeInteger$2 = function (it) {
  if (it > MAX_SAFE_INTEGER) throw $TypeError$8('Maximum allowed index exceeded');
  return it;
};

var fails$g = fails$w;
var wellKnownSymbol$6 = wellKnownSymbol$l;
var V8_VERSION$1 = engineV8Version;

var SPECIES$2 = wellKnownSymbol$6('species');

var $$B = _export;
var fails$f = fails$w;
var isArray$c = isArray$f;
var isObject$a = isObject$j;
var toObject$6 = toObject$d;
var lengthOfArrayLike$6 = lengthOfArrayLike$b;
var doesNotExceedSafeInteger$1 = doesNotExceedSafeInteger$2;
var createProperty$2 = createProperty$6;
var arraySpeciesCreate$1 = arraySpeciesCreate$3;
var arrayMethodHasSpeciesSupport$4 = arrayMethodHasSpeciesSupport$5;
var wellKnownSymbol$5 = wellKnownSymbol$l;
var V8_VERSION = engineV8Version;

var IS_CONCAT_SPREADABLE = wellKnownSymbol$5('isConcatSpreadable');

// We can't use this feature detection in V8 since it causes
// deoptimization and serious performance degradation
// https://github.com/zloirock/core-js/issues/679
var IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails$f(function () {
  var array = [];
  array[IS_CONCAT_SPREADABLE] = false;
  return array.concat()[0] !== array;
});

var isConcatSpreadable = function (O) {
  if (!isObject$a(O)) return false;
  var spreadable = O[IS_CONCAT_SPREADABLE];
  return spreadable !== undefined ? !!spreadable : isArray$c(O);
};

var FORCED$7 = !IS_CONCAT_SPREADABLE_SUPPORT || !arrayMethodHasSpeciesSupport$4('concat');

// `Array.prototype.concat` method
// https://tc39.es/ecma262/#sec-array.prototype.concat
// with adding support of @@isConcatSpreadable and @@species
$$B({ target: 'Array', proto: true, arity: 1, forced: FORCED$7 }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  concat: function concat(arg) {
    var O = toObject$6(this);
    var A = arraySpeciesCreate$1(O, 0);
    var n = 0;
    var i, k, length, len, E;
    for (i = -1, length = arguments.length; i < length; i++) {
      E = i === -1 ? O : arguments[i];
      if (isConcatSpreadable(E)) {
        len = lengthOfArrayLike$6(E);
        doesNotExceedSafeInteger$1(n + len);
        for (k = 0; k < len; k++, n++) if (k in E) createProperty$2(A, n, E[k]);
      } else {
        doesNotExceedSafeInteger$1(n + 1);
        createProperty$2(A, n++, E);
      }
    }
    A.length = n;
    return A;
  }
});

var defineWellKnownSymbol$k = wellKnownSymbolDefine;

// `Symbol.asyncIterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.asynciterator
defineWellKnownSymbol$k('asyncIterator');

var defineWellKnownSymbol$j = wellKnownSymbolDefine;

// `Symbol.hasInstance` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.hasinstance
defineWellKnownSymbol$j('hasInstance');

var defineWellKnownSymbol$i = wellKnownSymbolDefine;

// `Symbol.isConcatSpreadable` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.isconcatspreadable
defineWellKnownSymbol$i('isConcatSpreadable');

var defineWellKnownSymbol$h = wellKnownSymbolDefine;

// `Symbol.iterator` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.iterator
defineWellKnownSymbol$h('iterator');

var defineWellKnownSymbol$g = wellKnownSymbolDefine;

// `Symbol.match` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.match
defineWellKnownSymbol$g('match');

var defineWellKnownSymbol$f = wellKnownSymbolDefine;

// `Symbol.matchAll` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.matchall
defineWellKnownSymbol$f('matchAll');

var defineWellKnownSymbol$e = wellKnownSymbolDefine;

// `Symbol.replace` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.replace
defineWellKnownSymbol$e('replace');

var defineWellKnownSymbol$d = wellKnownSymbolDefine;

// `Symbol.search` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.search
defineWellKnownSymbol$d('search');

var defineWellKnownSymbol$c = wellKnownSymbolDefine;

// `Symbol.species` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.species
defineWellKnownSymbol$c('species');

var defineWellKnownSymbol$b = wellKnownSymbolDefine;

// `Symbol.split` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.split
defineWellKnownSymbol$b('split');

var defineWellKnownSymbol$a = wellKnownSymbolDefine;
var defineSymbolToPrimitive = symbolDefineToPrimitive;

// `Symbol.toPrimitive` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.toprimitive
defineWellKnownSymbol$a('toPrimitive');

// `Symbol.prototype[@@toPrimitive]` method
// https://tc39.es/ecma262/#sec-symbol.prototype-@@toprimitive
defineSymbolToPrimitive();

var getBuiltIn$4 = getBuiltIn$c;
var defineWellKnownSymbol$9 = wellKnownSymbolDefine;
var setToStringTag$2 = setToStringTag$6;

// `Symbol.toStringTag` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.tostringtag
defineWellKnownSymbol$9('toStringTag');

// `Symbol.prototype[@@toStringTag]` property
// https://tc39.es/ecma262/#sec-symbol.prototype-@@tostringtag
setToStringTag$2(getBuiltIn$4('Symbol'), 'Symbol');

var defineWellKnownSymbol$8 = wellKnownSymbolDefine;

// `Symbol.unscopables` well-known symbol
// https://tc39.es/ecma262/#sec-symbol.unscopables
defineWellKnownSymbol$8('unscopables');

var global$9 = global$l;
var setToStringTag$1 = setToStringTag$6;

// JSON[@@toStringTag] property
// https://tc39.es/ecma262/#sec-json-@@tostringtag
setToStringTag$1(global$9.JSON, 'JSON', true);

var path$m = path$y;

var symbol$4 = path$m.Symbol;

var parent$_ = symbol$4;

var symbol$3 = parent$_;

var defineWellKnownSymbol$7 = wellKnownSymbolDefine;

// `Symbol.dispose` well-known symbol
// https://github.com/tc39/proposal-explicit-resource-management
defineWellKnownSymbol$7('dispose');

var parent$Z = symbol$3;

var symbol$2 = parent$Z;

var defineWellKnownSymbol$6 = wellKnownSymbolDefine;

// `Symbol.asyncDispose` well-known symbol
// https://github.com/tc39/proposal-async-explicit-resource-management
defineWellKnownSymbol$6('asyncDispose');

var $$A = _export;
var getBuiltIn$3 = getBuiltIn$c;
var uncurryThis$d = functionUncurryThis;

var Symbol$4 = getBuiltIn$3('Symbol');
var keyFor = Symbol$4.keyFor;
var thisSymbolValue$1 = uncurryThis$d(Symbol$4.prototype.valueOf);

// `Symbol.isRegistered` method
// https://tc39.es/proposal-symbol-predicates/#sec-symbol-isregistered
$$A({ target: 'Symbol', stat: true }, {
  isRegistered: function isRegistered(value) {
    try {
      return keyFor(thisSymbolValue$1(value)) !== undefined;
    } catch (error) {
      return false;
    }
  }
});

var $$z = _export;
var shared = sharedExports;
var getBuiltIn$2 = getBuiltIn$c;
var uncurryThis$c = functionUncurryThis;
var isSymbol = isSymbol$5;
var wellKnownSymbol$4 = wellKnownSymbol$l;

var Symbol$3 = getBuiltIn$2('Symbol');
var $isWellKnown = Symbol$3.isWellKnown;
var getOwnPropertyNames$4 = getBuiltIn$2('Object', 'getOwnPropertyNames');
var thisSymbolValue = uncurryThis$c(Symbol$3.prototype.valueOf);
var WellKnownSymbolsStore = shared('wks');

for (var i = 0, symbolKeys = getOwnPropertyNames$4(Symbol$3), symbolKeysLength = symbolKeys.length; i < symbolKeysLength; i++) {
  // some old engines throws on access to some keys like `arguments` or `caller`
  try {
    var symbolKey = symbolKeys[i];
    if (isSymbol(Symbol$3[symbolKey])) wellKnownSymbol$4(symbolKey);
  } catch (error) { /* empty */ }
}

// `Symbol.isWellKnown` method
// https://tc39.es/proposal-symbol-predicates/#sec-symbol-iswellknown
// We should patch it for newly added well-known symbols. If it's not required, this module just will not be injected
$$z({ target: 'Symbol', stat: true, forced: true }, {
  isWellKnown: function isWellKnown(value) {
    if ($isWellKnown && $isWellKnown(value)) return true;
    try {
      var symbol = thisSymbolValue(value);
      for (var j = 0, keys = getOwnPropertyNames$4(WellKnownSymbolsStore), keysLength = keys.length; j < keysLength; j++) {
        if (WellKnownSymbolsStore[keys[j]] == symbol) return true;
      }
    } catch (error) { /* empty */ }
    return false;
  }
});

var defineWellKnownSymbol$5 = wellKnownSymbolDefine;

// `Symbol.matcher` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol$5('matcher');

var defineWellKnownSymbol$4 = wellKnownSymbolDefine;

// `Symbol.metadataKey` well-known symbol
// https://github.com/tc39/proposal-decorator-metadata
defineWellKnownSymbol$4('metadataKey');

var defineWellKnownSymbol$3 = wellKnownSymbolDefine;

// `Symbol.observable` well-known symbol
// https://github.com/tc39/proposal-observable
defineWellKnownSymbol$3('observable');

// TODO: Remove from `core-js@4`
var defineWellKnownSymbol$2 = wellKnownSymbolDefine;

// `Symbol.metadata` well-known symbol
// https://github.com/tc39/proposal-decorators
defineWellKnownSymbol$2('metadata');

// TODO: remove from `core-js@4`
var defineWellKnownSymbol$1 = wellKnownSymbolDefine;

// `Symbol.patternMatch` well-known symbol
// https://github.com/tc39/proposal-pattern-matching
defineWellKnownSymbol$1('patternMatch');

// TODO: remove from `core-js@4`
var defineWellKnownSymbol = wellKnownSymbolDefine;

defineWellKnownSymbol('replaceAll');

var parent$Y = symbol$2;

// TODO: Remove from `core-js@4`

var symbol$1 = parent$Y;

(function (module) {
	module.exports = symbol$1;
} (symbol$5));

(function (module) {
	module.exports = symbolExports$1;
} (symbol$6));

var _Symbol$1 = /*@__PURE__*/getDefaultExportFromCjs$1(symbolExports$2);

var iteratorExports$1 = {};
var iterator$5 = {
  get exports(){ return iteratorExports$1; },
  set exports(v){ iteratorExports$1 = v; },
};

var iteratorExports = {};
var iterator$4 = {
  get exports(){ return iteratorExports; },
  set exports(v){ iteratorExports = v; },
};

var WrappedWellKnownSymbolModule$1 = wellKnownSymbolWrapped;

var iterator$3 = WrappedWellKnownSymbolModule$1.f('iterator');

var parent$X = iterator$3;

var iterator$2 = parent$X;

var parent$W = iterator$2;

var iterator$1 = parent$W;

var parent$V = iterator$1;

var iterator$6 = parent$V;

(function (module) {
	module.exports = iterator$6;
} (iterator$4));

(function (module) {
	module.exports = iteratorExports;
} (iterator$5));

var _Symbol$iterator = /*@__PURE__*/getDefaultExportFromCjs$1(iteratorExports$1);

function _typeof(obj) {
  "@babel/helpers - typeof";

return _typeof = "function" == typeof _Symbol$1 && "symbol" == typeof _Symbol$iterator ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && "function" == typeof _Symbol$1 && obj.constructor === _Symbol$1 && obj !== _Symbol$1.prototype ? "symbol" : typeof obj;
  }, _typeof(obj);
}

var toPrimitiveExports$1 = {};
var toPrimitive$5 = {
  get exports(){ return toPrimitiveExports$1; },
  set exports(v){ toPrimitiveExports$1 = v; },
};

var toPrimitiveExports = {};
var toPrimitive$4 = {
  get exports(){ return toPrimitiveExports; },
  set exports(v){ toPrimitiveExports = v; },
};

var WrappedWellKnownSymbolModule = wellKnownSymbolWrapped;

var toPrimitive$3 = WrappedWellKnownSymbolModule.f('toPrimitive');

var parent$U = toPrimitive$3;

var toPrimitive$2 = parent$U;

var parent$T = toPrimitive$2;

var toPrimitive$1 = parent$T;

var parent$S = toPrimitive$1;

var toPrimitive = parent$S;

(function (module) {
	module.exports = toPrimitive;
} (toPrimitive$4));

(function (module) {
	module.exports = toPrimitiveExports;
} (toPrimitive$5));

var _Symbol$toPrimitive = /*@__PURE__*/getDefaultExportFromCjs$1(toPrimitiveExports$1);

function _toPrimitive(input, hint) {
  if (_typeof(input) !== "object" || input === null) return input;
  var prim = input[_Symbol$toPrimitive];
  if (prim !== undefined) {
    var res = prim.call(input, hint || "default");
    if (_typeof(res) !== "object") return res;
    throw new TypeError("@@toPrimitive must return a primitive value.");
  }
  return (hint === "string" ? String : Number)(input);
}

function _toPropertyKey(arg) {
  var key = _toPrimitive(arg, "string");
  return _typeof(key) === "symbol" ? key : String(key);
}

var isArrayExports$2 = {};
var isArray$b = {
  get exports(){ return isArrayExports$2; },
  set exports(v){ isArrayExports$2 = v; },
};

var isArrayExports$1 = {};
var isArray$a = {
  get exports(){ return isArrayExports$1; },
  set exports(v){ isArrayExports$1 = v; },
};

var $$y = _export;
var isArray$9 = isArray$f;

// `Array.isArray` method
// https://tc39.es/ecma262/#sec-array.isarray
$$y({ target: 'Array', stat: true }, {
  isArray: isArray$9
});

var path$l = path$y;

var isArray$8 = path$l.Array.isArray;

var parent$R = isArray$8;

var isArray$7 = parent$R;

var parent$Q = isArray$7;

var isArray$6 = parent$Q;

var parent$P = isArray$6;

var isArray$5 = parent$P;

(function (module) {
	module.exports = isArray$5;
} (isArray$a));

(function (module) {
	module.exports = isArrayExports$1;
} (isArray$b));

var _Array$isArray$1 = /*@__PURE__*/getDefaultExportFromCjs$1(isArrayExports$2);

function _arrayWithHoles(arr) {
  if (_Array$isArray$1(arr)) return arr;
}

var sliceExports$2 = {};
var slice$7 = {
  get exports(){ return sliceExports$2; },
  set exports(v){ sliceExports$2 = v; },
};

var sliceExports$1 = {};
var slice$6 = {
  get exports(){ return sliceExports$1; },
  set exports(v){ sliceExports$1 = v; },
};

var $$x = _export;
var isArray$4 = isArray$f;
var isConstructor$1 = isConstructor$4;
var isObject$9 = isObject$j;
var toAbsoluteIndex$2 = toAbsoluteIndex$5;
var lengthOfArrayLike$5 = lengthOfArrayLike$b;
var toIndexedObject$1 = toIndexedObject$b;
var createProperty$1 = createProperty$6;
var wellKnownSymbol$3 = wellKnownSymbol$l;
var arrayMethodHasSpeciesSupport$3 = arrayMethodHasSpeciesSupport$5;
var nativeSlice$1 = arraySlice$5;

var HAS_SPECIES_SUPPORT$3 = arrayMethodHasSpeciesSupport$3('slice');

var SPECIES$1 = wellKnownSymbol$3('species');
var $Array = Array;
var max$1$1 = Math.max;

// `Array.prototype.slice` method
// https://tc39.es/ecma262/#sec-array.prototype.slice
// fallback for not array-like ES3 strings and DOM objects
$$x({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$3 }, {
  slice: function slice(start, end) {
    var O = toIndexedObject$1(this);
    var length = lengthOfArrayLike$5(O);
    var k = toAbsoluteIndex$2(start, length);
    var fin = toAbsoluteIndex$2(end === undefined ? length : end, length);
    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible
    var Constructor, result, n;
    if (isArray$4(O)) {
      Constructor = O.constructor;
      // cross-realm fallback
      if (isConstructor$1(Constructor) && (Constructor === $Array || isArray$4(Constructor.prototype))) {
        Constructor = undefined;
      } else if (isObject$9(Constructor)) {
        Constructor = Constructor[SPECIES$1];
        if (Constructor === null) Constructor = undefined;
      }
      if (Constructor === $Array || Constructor === undefined) {
        return nativeSlice$1(O, k, fin);
      }
    }
    result = new (Constructor === undefined ? $Array : Constructor)(max$1$1(fin - k, 0));
    for (n = 0; k < fin; k++, n++) if (k in O) createProperty$1(result, n, O[k]);
    result.length = n;
    return result;
  }
});

var entryVirtual$g = entryVirtual$i;

var slice$5 = entryVirtual$g('Array').slice;

var isPrototypeOf$h = objectIsPrototypeOf;
var method$e = slice$5;

var ArrayPrototype$e = Array.prototype;

var slice$4 = function (it) {
  var own = it.slice;
  return it === ArrayPrototype$e || (isPrototypeOf$h(ArrayPrototype$e, it) && own === ArrayPrototype$e.slice) ? method$e : own;
};

var parent$O = slice$4;

var slice$3 = parent$O;

var parent$N = slice$3;

var slice$2 = parent$N;

var parent$M = slice$2;

var slice$1 = parent$M;

(function (module) {
	module.exports = slice$1;
} (slice$6));

(function (module) {
	module.exports = sliceExports$1;
} (slice$7));

var _sliceInstanceProperty$1 = /*@__PURE__*/getDefaultExportFromCjs$1(sliceExports$2);

var fromExports$1 = {};
var from$3 = {
  get exports(){ return fromExports$1; },
  set exports(v){ fromExports$1 = v; },
};

var fromExports = {};
var from$2 = {
  get exports(){ return fromExports; },
  set exports(v){ fromExports = v; },
};

var parent$L = from$4;

var from$1 = parent$L;

var parent$K = from$1;

var from = parent$K;

(function (module) {
	module.exports = from;
} (from$2));

(function (module) {
	module.exports = fromExports;
} (from$3));

var _Array$from = /*@__PURE__*/getDefaultExportFromCjs$1(fromExports$1);

function _arrayLikeToArray$7(arr, len) {
  if (len == null || len > arr.length) len = arr.length;
  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
  return arr2;
}

function _unsupportedIterableToArray$7(o, minLen) {
  var _context;
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray$7(o, minLen);
  var n = _sliceInstanceProperty$1(_context = Object.prototype.toString.call(o)).call(_context, 8, -1);
  if (n === "Object" && o.constructor) n = o.constructor.name;
  if (n === "Map" || n === "Set") return _Array$from(o);
  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray$7(o, minLen);
}

function _nonIterableRest() {
  throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

function _slicedToArray(arr, i) {
  return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray$7(arr, i) || _nonIterableRest();
}

function _arrayWithoutHoles(arr) {
  if (_Array$isArray$1(arr)) return _arrayLikeToArray$7(arr);
}

function _iterableToArray(iter) {
  if (typeof _Symbol$1 !== "undefined" && _getIteratorMethod(iter) != null || iter["@@iterator"] != null) return _Array$from(iter);
}

function _nonIterableSpread() {
  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}

function _toConsumableArray(arr) {
  return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray$7(arr) || _nonIterableSpread();
}

var symbolExports = {};
var symbol = {
  get exports(){ return symbolExports; },
  set exports(v){ symbolExports = v; },
};

(function (module) {
	module.exports = symbol$3;
} (symbol));

var _Symbol = /*@__PURE__*/getDefaultExportFromCjs$1(symbolExports);

var concatExports = {};
var concat$3 = {
  get exports(){ return concatExports; },
  set exports(v){ concatExports = v; },
};

var entryVirtual$f = entryVirtual$i;

var concat$2 = entryVirtual$f('Array').concat;

var isPrototypeOf$g = objectIsPrototypeOf;
var method$d = concat$2;

var ArrayPrototype$d = Array.prototype;

var concat$1 = function (it) {
  var own = it.concat;
  return it === ArrayPrototype$d || (isPrototypeOf$g(ArrayPrototype$d, it) && own === ArrayPrototype$d.concat) ? method$d : own;
};

var parent$J = concat$1;

var concat = parent$J;

(function (module) {
	module.exports = concat;
} (concat$3));

var _concatInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(concatExports);

var sliceExports = {};
var slice$8 = {
  get exports(){ return sliceExports; },
  set exports(v){ sliceExports = v; },
};

(function (module) {
	module.exports = slice$3;
} (slice$8));

var _sliceInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(sliceExports);

var ownKeysExports = {};
var ownKeys$7 = {
  get exports(){ return ownKeysExports; },
  set exports(v){ ownKeysExports = v; },
};

var $$w = _export;
var ownKeys$6 = ownKeys$9;

// `Reflect.ownKeys` method
// https://tc39.es/ecma262/#sec-reflect.ownkeys
$$w({ target: 'Reflect', stat: true }, {
  ownKeys: ownKeys$6
});

var path$k = path$y;

var ownKeys$5 = path$k.Reflect.ownKeys;

var parent$I = ownKeys$5;

var ownKeys$4 = parent$I;

(function (module) {
	module.exports = ownKeys$4;
} (ownKeys$7));

var isArrayExports = {};
var isArray$3 = {
  get exports(){ return isArrayExports; },
  set exports(v){ isArrayExports = v; },
};

(function (module) {
	module.exports = isArray$7;
} (isArray$3));

var _Array$isArray = /*@__PURE__*/getDefaultExportFromCjs$1(isArrayExports);

var mapExports$1 = {};
var map$6 = {
  get exports(){ return mapExports$1; },
  set exports(v){ mapExports$1 = v; },
};

var $$v = _export;
var $map = arrayIteration.map;
var arrayMethodHasSpeciesSupport$2 = arrayMethodHasSpeciesSupport$5;

var HAS_SPECIES_SUPPORT$2 = arrayMethodHasSpeciesSupport$2('map');

// `Array.prototype.map` method
// https://tc39.es/ecma262/#sec-array.prototype.map
// with adding support of @@species
$$v({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$2 }, {
  map: function map(callbackfn /* , thisArg */) {
    return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$e = entryVirtual$i;

var map$5 = entryVirtual$e('Array').map;

var isPrototypeOf$f = objectIsPrototypeOf;
var method$c = map$5;

var ArrayPrototype$c = Array.prototype;

var map$4 = function (it) {
  var own = it.map;
  return it === ArrayPrototype$c || (isPrototypeOf$f(ArrayPrototype$c, it) && own === ArrayPrototype$c.map) ? method$c : own;
};

var parent$H = map$4;

var map$3 = parent$H;

(function (module) {
	module.exports = map$3;
} (map$6));

var _mapInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(mapExports$1);

var keysExports = {};
var keys$2 = {
  get exports(){ return keysExports; },
  set exports(v){ keysExports = v; },
};

var $$u = _export;
var toObject$5 = toObject$d;
var nativeKeys = objectKeys$4;
var fails$e = fails$w;

var FAILS_ON_PRIMITIVES$3 = fails$e(function () { nativeKeys(1); });

// `Object.keys` method
// https://tc39.es/ecma262/#sec-object.keys
$$u({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$3 }, {
  keys: function keys(it) {
    return nativeKeys(toObject$5(it));
  }
});

var path$j = path$y;

var keys$1 = path$j.Object.keys;

var parent$G = keys$1;

var keys$4 = parent$G;

(function (module) {
	module.exports = keys$4;
} (keys$2));

var _Object$keys = /*@__PURE__*/getDefaultExportFromCjs$1(keysExports);

var nowExports = {};
var now$3 = {
  get exports(){ return nowExports; },
  set exports(v){ nowExports = v; },
};

// TODO: Remove from `core-js@4`
var $$t = _export;
var uncurryThis$b = functionUncurryThis;

var $Date = Date;
var thisTimeValue = uncurryThis$b($Date.prototype.getTime);

// `Date.now` method
// https://tc39.es/ecma262/#sec-date.now
$$t({ target: 'Date', stat: true }, {
  now: function now() {
    return thisTimeValue(new $Date());
  }
});

var path$i = path$y;

var now$2 = path$i.Date.now;

var parent$F = now$2;

var now$1 = parent$F;

(function (module) {
	module.exports = now$1;
} (now$3));

var _Date$now = /*@__PURE__*/getDefaultExportFromCjs$1(nowExports);

var forEachExports = {};
var forEach$6 = {
  get exports(){ return forEachExports; },
  set exports(v){ forEachExports = v; },
};

var fails$d = fails$w;

var $forEach = arrayIteration.forEach;
var arrayMethodIsStrict$5 = arrayMethodIsStrict$6;

var STRICT_METHOD$3 = arrayMethodIsStrict$5('forEach');

// `Array.prototype.forEach` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.foreach
var arrayForEach = !STRICT_METHOD$3 ? function forEach(callbackfn /* , thisArg */) {
  return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
} : [].forEach;

var $$s = _export;
var forEach$5 = arrayForEach;

// `Array.prototype.forEach` method
// https://tc39.es/ecma262/#sec-array.prototype.foreach
// eslint-disable-next-line es/no-array-prototype-foreach -- safe
$$s({ target: 'Array', proto: true, forced: [].forEach != forEach$5 }, {
  forEach: forEach$5
});

var entryVirtual$d = entryVirtual$i;

var forEach$4 = entryVirtual$d('Array').forEach;

var parent$E = forEach$4;

var forEach$3 = parent$E;

var classof$4 = classof$d;
var hasOwn$4 = hasOwnProperty_1;
var isPrototypeOf$e = objectIsPrototypeOf;
var method$b = forEach$3;

var ArrayPrototype$b = Array.prototype;

var DOMIterables$1 = {
  DOMTokenList: true,
  NodeList: true
};

var forEach$2 = function (it) {
  var own = it.forEach;
  return it === ArrayPrototype$b || (isPrototypeOf$e(ArrayPrototype$b, it) && own === ArrayPrototype$b.forEach)
    || hasOwn$4(DOMIterables$1, classof$4(it)) ? method$b : own;
};

(function (module) {
	module.exports = forEach$2;
} (forEach$6));

var _forEachInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(forEachExports);

var reverseExports = {};
var reverse$3 = {
  get exports(){ return reverseExports; },
  set exports(v){ reverseExports = v; },
};

var $$r = _export;
var uncurryThis$a = functionUncurryThis;
var isArray$2 = isArray$f;

var nativeReverse = uncurryThis$a([].reverse);
var test$1 = [1, 2];

// `Array.prototype.reverse` method
// https://tc39.es/ecma262/#sec-array.prototype.reverse
// fix for Safari 12.0 bug
// https://bugs.webkit.org/show_bug.cgi?id=188794
$$r({ target: 'Array', proto: true, forced: String(test$1) === String(test$1.reverse()) }, {
  reverse: function reverse() {
    // eslint-disable-next-line no-self-assign -- dirty hack
    if (isArray$2(this)) this.length = this.length;
    return nativeReverse(this);
  }
});

var entryVirtual$c = entryVirtual$i;

var reverse$2 = entryVirtual$c('Array').reverse;

var isPrototypeOf$d = objectIsPrototypeOf;
var method$a = reverse$2;

var ArrayPrototype$a = Array.prototype;

var reverse$1 = function (it) {
  var own = it.reverse;
  return it === ArrayPrototype$a || (isPrototypeOf$d(ArrayPrototype$a, it) && own === ArrayPrototype$a.reverse) ? method$a : own;
};

var parent$D = reverse$1;

var reverse = parent$D;

(function (module) {
	module.exports = reverse;
} (reverse$3));

var _reverseInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(reverseExports);

var spliceExports = {};
var splice$4 = {
  get exports(){ return spliceExports; },
  set exports(v){ spliceExports = v; },
};

var DESCRIPTORS$5 = descriptors;
var isArray$1 = isArray$f;

var $TypeError$7 = TypeError;
// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
var getOwnPropertyDescriptor$4 = Object.getOwnPropertyDescriptor;

// Safari < 13 does not throw an error in this case
var SILENT_ON_NON_WRITABLE_LENGTH_SET = DESCRIPTORS$5 && !function () {
  // makes no sense without proper strict mode support
  if (this !== undefined) return true;
  try {
    // eslint-disable-next-line es/no-object-defineproperty -- safe
    Object.defineProperty([], 'length', { writable: false }).length = 1;
  } catch (error) {
    return error instanceof TypeError;
  }
}();

var tryToString$2 = tryToString$6;

var $TypeError$6 = TypeError;

var deletePropertyOrThrow$2 = function (O, P) {
  if (!delete O[P]) throw $TypeError$6('Cannot delete property ' + tryToString$2(P) + ' of ' + tryToString$2(O));
};

var $$q = _export;
var toObject$4 = toObject$d;
var toAbsoluteIndex$1 = toAbsoluteIndex$5;
var toIntegerOrInfinity = toIntegerOrInfinity$4;
var lengthOfArrayLike$4 = lengthOfArrayLike$b;
var setArrayLength = arraySetLength;
var doesNotExceedSafeInteger = doesNotExceedSafeInteger$2;
var arraySpeciesCreate = arraySpeciesCreate$3;
var createProperty = createProperty$6;
var deletePropertyOrThrow$1 = deletePropertyOrThrow$2;
var arrayMethodHasSpeciesSupport$1 = arrayMethodHasSpeciesSupport$5;

var HAS_SPECIES_SUPPORT$1 = arrayMethodHasSpeciesSupport$1('splice');

var max$4 = Math.max;
var min$3 = Math.min;

// `Array.prototype.splice` method
// https://tc39.es/ecma262/#sec-array.prototype.splice
// with adding support of @@species
$$q({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT$1 }, {
  splice: function splice(start, deleteCount /* , ...items */) {
    var O = toObject$4(this);
    var len = lengthOfArrayLike$4(O);
    var actualStart = toAbsoluteIndex$1(start, len);
    var argumentsLength = arguments.length;
    var insertCount, actualDeleteCount, A, k, from, to;
    if (argumentsLength === 0) {
      insertCount = actualDeleteCount = 0;
    } else if (argumentsLength === 1) {
      insertCount = 0;
      actualDeleteCount = len - actualStart;
    } else {
      insertCount = argumentsLength - 2;
      actualDeleteCount = min$3(max$4(toIntegerOrInfinity(deleteCount), 0), len - actualStart);
    }
    doesNotExceedSafeInteger(len + insertCount - actualDeleteCount);
    A = arraySpeciesCreate(O, actualDeleteCount);
    for (k = 0; k < actualDeleteCount; k++) {
      from = actualStart + k;
      if (from in O) createProperty(A, k, O[from]);
    }
    A.length = actualDeleteCount;
    if (insertCount < actualDeleteCount) {
      for (k = actualStart; k < len - actualDeleteCount; k++) {
        from = k + actualDeleteCount;
        to = k + insertCount;
        if (from in O) O[to] = O[from];
        else deletePropertyOrThrow$1(O, to);
      }
      for (k = len; k > len - actualDeleteCount + insertCount; k--) deletePropertyOrThrow$1(O, k - 1);
    } else if (insertCount > actualDeleteCount) {
      for (k = len - actualDeleteCount; k > actualStart; k--) {
        from = k + actualDeleteCount - 1;
        to = k + insertCount - 1;
        if (from in O) O[to] = O[from];
        else deletePropertyOrThrow$1(O, to);
      }
    }
    for (k = 0; k < insertCount; k++) {
      O[k + actualStart] = arguments[k + 2];
    }
    setArrayLength(O, len - actualDeleteCount + insertCount);
    return A;
  }
});

var entryVirtual$b = entryVirtual$i;

var splice$3 = entryVirtual$b('Array').splice;

var isPrototypeOf$c = objectIsPrototypeOf;
var method$9 = splice$3;

var ArrayPrototype$9 = Array.prototype;

var splice$2 = function (it) {
  var own = it.splice;
  return it === ArrayPrototype$9 || (isPrototypeOf$c(ArrayPrototype$9, it) && own === ArrayPrototype$9.splice) ? method$9 : own;
};

var parent$C = splice$2;

var splice$1 = parent$C;

(function (module) {
	module.exports = splice$1;
} (splice$4));

var _spliceInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(spliceExports);

var includesExports = {};
var includes$4 = {
  get exports(){ return includesExports; },
  set exports(v){ includesExports = v; },
};

var $$p = _export;
var $includes = arrayIncludes.includes;
var fails$c = fails$w;

// FF99+ bug
var BROKEN_ON_SPARSE = fails$c(function () {
  // eslint-disable-next-line es/no-array-prototype-includes -- detection
  return !Array(1).includes();
});

// `Array.prototype.includes` method
// https://tc39.es/ecma262/#sec-array.prototype.includes
$$p({ target: 'Array', proto: true, forced: BROKEN_ON_SPARSE }, {
  includes: function includes(el /* , fromIndex = 0 */) {
    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$a = entryVirtual$i;

var includes$3 = entryVirtual$a('Array').includes;

var isObject$8 = isObject$j;
var classof$3 = classofRaw$2;
var wellKnownSymbol$2 = wellKnownSymbol$l;

var MATCH$1 = wellKnownSymbol$2('match');

// `IsRegExp` abstract operation
// https://tc39.es/ecma262/#sec-isregexp
var isRegexp = function (it) {
  var isRegExp;
  return isObject$8(it) && ((isRegExp = it[MATCH$1]) !== undefined ? !!isRegExp : classof$3(it) == 'RegExp');
};

var isRegExp = isRegexp;

var $TypeError$5 = TypeError;

var notARegexp = function (it) {
  if (isRegExp(it)) {
    throw $TypeError$5("The method doesn't accept regular expressions");
  } return it;
};

var wellKnownSymbol$1 = wellKnownSymbol$l;

var MATCH = wellKnownSymbol$1('match');

var $$o = _export;
var uncurryThis$9 = functionUncurryThis;
var notARegExp = notARegexp;
var requireObjectCoercible$1 = requireObjectCoercible$5;
var toString$4 = toString$a;
var correctIsRegExpLogic = correctIsRegexpLogic;

var stringIndexOf = uncurryThis$9(''.indexOf);

// `String.prototype.includes` method
// https://tc39.es/ecma262/#sec-string.prototype.includes
$$o({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {
  includes: function includes(searchString /* , position = 0 */) {
    return !!~stringIndexOf(
      toString$4(requireObjectCoercible$1(this)),
      toString$4(notARegExp(searchString)),
      arguments.length > 1 ? arguments[1] : undefined
    );
  }
});

var entryVirtual$9 = entryVirtual$i;

var includes$2 = entryVirtual$9('String').includes;

var isPrototypeOf$b = objectIsPrototypeOf;
var arrayMethod = includes$3;
var stringMethod = includes$2;

var ArrayPrototype$8 = Array.prototype;
var StringPrototype$1 = String.prototype;

var includes$1 = function (it) {
  var own = it.includes;
  if (it === ArrayPrototype$8 || (isPrototypeOf$b(ArrayPrototype$8, it) && own === ArrayPrototype$8.includes)) return arrayMethod;
  if (typeof it == 'string' || it === StringPrototype$1 || (isPrototypeOf$b(StringPrototype$1, it) && own === StringPrototype$1.includes)) {
    return stringMethod;
  } return own;
};

var parent$B = includes$1;

var includes = parent$B;

(function (module) {
	module.exports = includes;
} (includes$4));

var _includesInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(includesExports);

var getPrototypeOfExports$2 = {};
var getPrototypeOf$7 = {
  get exports(){ return getPrototypeOfExports$2; },
  set exports(v){ getPrototypeOfExports$2 = v; },
};

var $$n = _export;
var fails$b = fails$w;
var toObject$3 = toObject$d;
var nativeGetPrototypeOf = objectGetPrototypeOf;
var CORRECT_PROTOTYPE_GETTER = correctPrototypeGetter;

var FAILS_ON_PRIMITIVES$2 = fails$b(function () { nativeGetPrototypeOf(1); });

// `Object.getPrototypeOf` method
// https://tc39.es/ecma262/#sec-object.getprototypeof
$$n({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES$2, sham: !CORRECT_PROTOTYPE_GETTER }, {
  getPrototypeOf: function getPrototypeOf(it) {
    return nativeGetPrototypeOf(toObject$3(it));
  }
});

var path$h = path$y;

var getPrototypeOf$6 = path$h.Object.getPrototypeOf;

var parent$A = getPrototypeOf$6;

var getPrototypeOf$5 = parent$A;

(function (module) {
	module.exports = getPrototypeOf$5;
} (getPrototypeOf$7));

var _Object$getPrototypeOf$1 = /*@__PURE__*/getDefaultExportFromCjs$1(getPrototypeOfExports$2);

var filterExports = {};
var filter$3 = {
  get exports(){ return filterExports; },
  set exports(v){ filterExports = v; },
};

var $$m = _export;
var $filter = arrayIteration.filter;
var arrayMethodHasSpeciesSupport = arrayMethodHasSpeciesSupport$5;

var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter');

// `Array.prototype.filter` method
// https://tc39.es/ecma262/#sec-array.prototype.filter
// with adding support of @@species
$$m({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
  filter: function filter(callbackfn /* , thisArg */) {
    return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$8 = entryVirtual$i;

var filter$2 = entryVirtual$8('Array').filter;

var isPrototypeOf$a = objectIsPrototypeOf;
var method$8 = filter$2;

var ArrayPrototype$7 = Array.prototype;

var filter$1 = function (it) {
  var own = it.filter;
  return it === ArrayPrototype$7 || (isPrototypeOf$a(ArrayPrototype$7, it) && own === ArrayPrototype$7.filter) ? method$8 : own;
};

var parent$z = filter$1;

var filter$4 = parent$z;

(function (module) {
	module.exports = filter$4;
} (filter$3));

var _filterInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(filterExports);

var valuesExports$1 = {};
var values$6 = {
  get exports(){ return valuesExports$1; },
  set exports(v){ valuesExports$1 = v; },
};

var DESCRIPTORS$4 = descriptors;
var uncurryThis$8 = functionUncurryThis;
var objectKeys = objectKeys$4;
var toIndexedObject = toIndexedObject$b;
var $propertyIsEnumerable = objectPropertyIsEnumerable.f;

var propertyIsEnumerable = uncurryThis$8($propertyIsEnumerable);
var push$2 = uncurryThis$8([].push);

// `Object.{ entries, values }` methods implementation
var createMethod$2 = function (TO_ENTRIES) {
  return function (it) {
    var O = toIndexedObject(it);
    var keys = objectKeys(O);
    var length = keys.length;
    var i = 0;
    var result = [];
    var key;
    while (length > i) {
      key = keys[i++];
      if (!DESCRIPTORS$4 || propertyIsEnumerable(O, key)) {
        push$2(result, TO_ENTRIES ? [key, O[key]] : O[key]);
      }
    }
    return result;
  };
};

var objectToArray = {
  // `Object.entries` method
  // https://tc39.es/ecma262/#sec-object.entries
  entries: createMethod$2(true),
  // `Object.values` method
  // https://tc39.es/ecma262/#sec-object.values
  values: createMethod$2(false)
};

var $$l = _export;
var $values = objectToArray.values;

// `Object.values` method
// https://tc39.es/ecma262/#sec-object.values
$$l({ target: 'Object', stat: true }, {
  values: function values(O) {
    return $values(O);
  }
});

var path$g = path$y;

var values$5 = path$g.Object.values;

var parent$y = values$5;

var values$4 = parent$y;

(function (module) {
	module.exports = values$4;
} (values$6));

var _parseIntExports = {};
var _parseInt$3 = {
  get exports(){ return _parseIntExports; },
  set exports(v){ _parseIntExports = v; },
};

// a string of all valid unicode whitespaces
var whitespaces$4 = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u2000\u2001\u2002' +
  '\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF';

var uncurryThis$7 = functionUncurryThis;
var requireObjectCoercible = requireObjectCoercible$5;
var toString$3 = toString$a;
var whitespaces$3 = whitespaces$4;

var replace = uncurryThis$7(''.replace);
var ltrim = RegExp('^[' + whitespaces$3 + ']+');
var rtrim = RegExp('(^|[^' + whitespaces$3 + '])[' + whitespaces$3 + ']+$');

// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation
var createMethod$1 = function (TYPE) {
  return function ($this) {
    var string = toString$3(requireObjectCoercible($this));
    if (TYPE & 1) string = replace(string, ltrim, '');
    if (TYPE & 2) string = replace(string, rtrim, '$1');
    return string;
  };
};

var stringTrim = {
  // `String.prototype.{ trimLeft, trimStart }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimstart
  start: createMethod$1(1),
  // `String.prototype.{ trimRight, trimEnd }` methods
  // https://tc39.es/ecma262/#sec-string.prototype.trimend
  end: createMethod$1(2),
  // `String.prototype.trim` method
  // https://tc39.es/ecma262/#sec-string.prototype.trim
  trim: createMethod$1(3)
};

var global$8 = global$l;
var fails$a = fails$w;
var uncurryThis$6 = functionUncurryThis;
var toString$2 = toString$a;
var trim$5 = stringTrim.trim;
var whitespaces$2 = whitespaces$4;

var $parseInt$1 = global$8.parseInt;
var Symbol$2 = global$8.Symbol;
var ITERATOR$1 = Symbol$2 && Symbol$2.iterator;
var hex = /^[+-]?0x/i;
var exec = uncurryThis$6(hex.exec);
var FORCED$6 = $parseInt$1(whitespaces$2 + '08') !== 8 || $parseInt$1(whitespaces$2 + '0x16') !== 22
  // MS Edge 18- broken with boxed symbols
  || (ITERATOR$1 && !fails$a(function () { $parseInt$1(Object(ITERATOR$1)); }));

// `parseInt` method
// https://tc39.es/ecma262/#sec-parseint-string-radix
var numberParseInt = FORCED$6 ? function parseInt(string, radix) {
  var S = trim$5(toString$2(string));
  return $parseInt$1(S, (radix >>> 0) || (exec(hex, S) ? 16 : 10));
} : $parseInt$1;

var $$k = _export;
var $parseInt = numberParseInt;

// `parseInt` method
// https://tc39.es/ecma262/#sec-parseint-string-radix
$$k({ global: true, forced: parseInt != $parseInt }, {
  parseInt: $parseInt
});

var path$f = path$y;

var _parseInt$2 = path$f.parseInt;

var parent$x = _parseInt$2;

var _parseInt$1 = parent$x;

(function (module) {
	module.exports = _parseInt$1;
} (_parseInt$3));

var _parseInt = /*@__PURE__*/getDefaultExportFromCjs$1(_parseIntExports);

var indexOfExports = {};
var indexOf$3 = {
  get exports(){ return indexOfExports; },
  set exports(v){ indexOfExports = v; },
};

/* eslint-disable es/no-array-prototype-indexof -- required for testing */
var $$j = _export;
var uncurryThis$5 = functionUncurryThisClause;
var $indexOf = arrayIncludes.indexOf;
var arrayMethodIsStrict$4 = arrayMethodIsStrict$6;

var nativeIndexOf = uncurryThis$5([].indexOf);

var NEGATIVE_ZERO = !!nativeIndexOf && 1 / nativeIndexOf([1], 1, -0) < 0;
var FORCED$5 = NEGATIVE_ZERO || !arrayMethodIsStrict$4('indexOf');

// `Array.prototype.indexOf` method
// https://tc39.es/ecma262/#sec-array.prototype.indexof
$$j({ target: 'Array', proto: true, forced: FORCED$5 }, {
  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {
    var fromIndex = arguments.length > 1 ? arguments[1] : undefined;
    return NEGATIVE_ZERO
      // convert -0 to +0
      ? nativeIndexOf(this, searchElement, fromIndex) || 0
      : $indexOf(this, searchElement, fromIndex);
  }
});

var entryVirtual$7 = entryVirtual$i;

var indexOf$2 = entryVirtual$7('Array').indexOf;

var isPrototypeOf$9 = objectIsPrototypeOf;
var method$7 = indexOf$2;

var ArrayPrototype$6 = Array.prototype;

var indexOf$1 = function (it) {
  var own = it.indexOf;
  return it === ArrayPrototype$6 || (isPrototypeOf$9(ArrayPrototype$6, it) && own === ArrayPrototype$6.indexOf) ? method$7 : own;
};

var parent$w = indexOf$1;

var indexOf$5 = parent$w;

(function (module) {
	module.exports = indexOf$5;
} (indexOf$3));

var _indexOfInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(indexOfExports);

var trimExports = {};
var trim$4 = {
  get exports(){ return trimExports; },
  set exports(v){ trimExports = v; },
};

var PROPER_FUNCTION_NAME = functionName.PROPER;
var fails$9 = fails$w;
var whitespaces$1 = whitespaces$4;

var non = '\u200B\u0085\u180E';

// check that a method works with the correct list
// of whitespaces and has a correct name
var stringTrimForced = function (METHOD_NAME) {
  return fails$9(function () {
    return !!whitespaces$1[METHOD_NAME]()
      || non[METHOD_NAME]() !== non
      || (PROPER_FUNCTION_NAME && whitespaces$1[METHOD_NAME].name !== METHOD_NAME);
  });
};

var $$i = _export;
var $trim = stringTrim.trim;
var forcedStringTrimMethod = stringTrimForced;

// `String.prototype.trim` method
// https://tc39.es/ecma262/#sec-string.prototype.trim
$$i({ target: 'String', proto: true, forced: forcedStringTrimMethod('trim') }, {
  trim: function trim() {
    return $trim(this);
  }
});

var entryVirtual$6 = entryVirtual$i;

var trim$3 = entryVirtual$6('String').trim;

var isPrototypeOf$8 = objectIsPrototypeOf;
var method$6 = trim$3;

var StringPrototype = String.prototype;

var trim$2 = function (it) {
  var own = it.trim;
  return typeof it == 'string' || it === StringPrototype
    || (isPrototypeOf$8(StringPrototype, it) && own === StringPrototype.trim) ? method$6 : own;
};

var parent$v = trim$2;

var trim$1 = parent$v;

(function (module) {
	module.exports = trim$1;
} (trim$4));

var createExports$2 = {};
var create$9 = {
  get exports(){ return createExports$2; },
  set exports(v){ createExports$2 = v; },
};

// TODO: Remove from `core-js@4`
var $$h = _export;
var DESCRIPTORS$3 = descriptors;
var create$8 = objectCreate;

// `Object.create` method
// https://tc39.es/ecma262/#sec-object.create
$$h({ target: 'Object', stat: true, sham: !DESCRIPTORS$3 }, {
  create: create$8
});

var path$e = path$y;

var Object$2 = path$e.Object;

var create$7 = function create(P, D) {
  return Object$2.create(P, D);
};

var parent$u = create$7;

var create$6 = parent$u;

(function (module) {
	module.exports = create$6;
} (create$9));

var _Object$create$1 = /*@__PURE__*/getDefaultExportFromCjs$1(createExports$2);

var stringifyExports = {};
var stringify$2 = {
  get exports(){ return stringifyExports; },
  set exports(v){ stringifyExports = v; },
};

var path$d = path$y;
var apply$2 = functionApply;

// eslint-disable-next-line es/no-json -- safe
if (!path$d.JSON) path$d.JSON = { stringify: JSON.stringify };

// eslint-disable-next-line no-unused-vars -- required for `.length`
var stringify$1 = function stringify(it, replacer, space) {
  return apply$2(path$d.JSON.stringify, null, arguments);
};

var parent$t = stringify$1;

var stringify$3 = parent$t;

(function (module) {
	module.exports = stringify$3;
} (stringify$2));

var _JSON$stringify = /*@__PURE__*/getDefaultExportFromCjs$1(stringifyExports);

var setTimeoutExports = {};
var setTimeout$3 = {
  get exports(){ return setTimeoutExports; },
  set exports(v){ setTimeoutExports = v; },
};

/* global Bun -- Deno case */

var engineIsBun = typeof Bun == 'function' && Bun && typeof Bun.version == 'string';

var $TypeError$4 = TypeError;

var validateArgumentsLength$1 = function (passed, required) {
  if (passed < required) throw $TypeError$4('Not enough arguments');
  return passed;
};

var global$7 = global$l;
var apply$1 = functionApply;
var isCallable$1 = isCallable$i;
var ENGINE_IS_BUN = engineIsBun;
var USER_AGENT = engineUserAgent;
var arraySlice$1 = arraySlice$5;
var validateArgumentsLength = validateArgumentsLength$1;

var Function$1 = global$7.Function;
// dirty IE9- and Bun 0.3.0- checks
var WRAP = /MSIE .\./.test(USER_AGENT) || ENGINE_IS_BUN && (function () {
  var version = global$7.Bun.version.split('.');
  return version.length < 3 || version[0] == 0 && (version[1] < 3 || version[1] == 3 && version[2] == 0);
})();

// IE9- / Bun 0.3.0- setTimeout / setInterval / setImmediate additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#timers
// https://github.com/oven-sh/bun/issues/1633
var schedulersFix$2 = function (scheduler, hasTimeArg) {
  var firstParamIndex = hasTimeArg ? 2 : 1;
  return WRAP ? function (handler, timeout /* , ...arguments */) {
    var boundArgs = validateArgumentsLength(arguments.length, 1) > firstParamIndex;
    var fn = isCallable$1(handler) ? handler : Function$1(handler);
    var params = boundArgs ? arraySlice$1(arguments, firstParamIndex) : [];
    var callback = boundArgs ? function () {
      apply$1(fn, this, params);
    } : fn;
    return hasTimeArg ? scheduler(callback, timeout) : scheduler(callback);
  } : scheduler;
};

var $$g = _export;
var global$6 = global$l;
var schedulersFix$1 = schedulersFix$2;

var setInterval$2 = schedulersFix$1(global$6.setInterval, true);

// Bun / IE9- setInterval additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-setinterval
$$g({ global: true, bind: true, forced: global$6.setInterval !== setInterval$2 }, {
  setInterval: setInterval$2
});

var $$f = _export;
var global$5 = global$l;
var schedulersFix = schedulersFix$2;

var setTimeout$2 = schedulersFix(global$5.setTimeout, true);

// Bun / IE9- setTimeout additional parameters fix
// https://html.spec.whatwg.org/multipage/timers-and-user-prompts.html#dom-settimeout
$$f({ global: true, bind: true, forced: global$5.setTimeout !== setTimeout$2 }, {
  setTimeout: setTimeout$2
});

var path$c = path$y;

var setTimeout$1 = path$c.setTimeout;

(function (module) {
	module.exports = setTimeout$1;
} (setTimeout$3));

var _setTimeout = /*@__PURE__*/getDefaultExportFromCjs$1(setTimeoutExports);

var fillExports = {};
var fill$4 = {
  get exports(){ return fillExports; },
  set exports(v){ fillExports = v; },
};

var toObject$2 = toObject$d;
var toAbsoluteIndex = toAbsoluteIndex$5;
var lengthOfArrayLike$3 = lengthOfArrayLike$b;

// `Array.prototype.fill` method implementation
// https://tc39.es/ecma262/#sec-array.prototype.fill
var arrayFill = function fill(value /* , start = 0, end = @length */) {
  var O = toObject$2(this);
  var length = lengthOfArrayLike$3(O);
  var argumentsLength = arguments.length;
  var index = toAbsoluteIndex(argumentsLength > 1 ? arguments[1] : undefined, length);
  var end = argumentsLength > 2 ? arguments[2] : undefined;
  var endPos = end === undefined ? length : toAbsoluteIndex(end, length);
  while (endPos > index) O[index++] = value;
  return O;
};

var $$e = _export;
var fill$3 = arrayFill;

// `Array.prototype.fill` method
// https://tc39.es/ecma262/#sec-array.prototype.fill
$$e({ target: 'Array', proto: true }, {
  fill: fill$3
});

var entryVirtual$5 = entryVirtual$i;

var fill$2 = entryVirtual$5('Array').fill;

var isPrototypeOf$7 = objectIsPrototypeOf;
var method$5 = fill$2;

var ArrayPrototype$5 = Array.prototype;

var fill$1 = function (it) {
  var own = it.fill;
  return it === ArrayPrototype$5 || (isPrototypeOf$7(ArrayPrototype$5, it) && own === ArrayPrototype$5.fill) ? method$5 : own;
};

var parent$s = fill$1;

var fill = parent$s;

(function (module) {
	module.exports = fill;
} (fill$4));

var _fillInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(fillExports);

/*! Hammer.JS - v2.0.17-rc - 2019-12-16
 * http://naver.github.io/egjs
 *
 * Forked By Naver egjs
 * Copyright (c) hammerjs
 * Licensed under the MIT license */
function _extends() {
  _extends = Object.assign || function (target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i];

for (var key in source) {
        if (Object.prototype.hasOwnProperty.call(source, key)) {
          target[key] = source[key];
        }
      }
    }

return target;
  };

return _extends.apply(this, arguments);
}

function _inheritsLoose(subClass, superClass) {
  subClass.prototype = Object.create(superClass.prototype);
  subClass.prototype.constructor = subClass;
  subClass.__proto__ = superClass;
}

function _assertThisInitialized$1(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

return self;
}

if (typeof Object.assign !== 'function') {
  assign = function assign(target) {
    if (target === undefined || target === null) {
      throw new TypeError('Cannot convert undefined or null to object');
    }

var output = Object(target);

for (var index = 1; index < arguments.length; index++) {
      var source = arguments[index];

return output;
  };
} else {
  assign = Object.assign;
}

var assign$1 = assign;

var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];
var TEST_ELEMENT = typeof document === "undefined" ? {
  style: {}
} : document.createElement('div');
var TYPE_FUNCTION = 'function';
var round$2 = Math.round,
    abs$1 = Math.abs;
var now = Date.now;

/**
 * @private
 * get the prefixed property
 * @param {Object} obj
 * @param {String} property
 * @returns {String|Undefined} prefixed
 */

function prefixed(obj, property) {
  var prefix;
  var prop;
  var camelProp = property[0].toUpperCase() + property.slice(1);
  var i = 0;

while (i < VENDOR_PREFIXES.length) {
    prefix = VENDOR_PREFIXES[i];
    prop = prefix ? prefix + camelProp : property;

if (prop in obj) {
      return prop;
    }

i++;
  }

return undefined;
}

/* eslint-disable no-new-func, no-nested-ternary */
var win;

if (typeof window === "undefined") {
  // window is undefined in node.js
  win = {};
} else {
  win = window;
}

var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');
var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;
function getTouchActionProps() {
  if (!NATIVE_TOUCH_ACTION) {
    return false;
  }

var touchMap = {};
  var cssSupports = win.CSS && win.CSS.supports;
  ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function (val) {
    // If css.supports is not supported but there is native touch-action assume it supports
    // all values. This is the case for IE 10 and 11.
    return touchMap[val] = cssSupports ? win.CSS.supports('touch-action', val) : true;
  });
  return touchMap;
}

var TOUCH_ACTION_COMPUTE = 'compute';
var TOUCH_ACTION_AUTO = 'auto';
var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented

var TOUCH_ACTION_NONE = 'none';
var TOUCH_ACTION_PAN_X = 'pan-x';
var TOUCH_ACTION_PAN_Y = 'pan-y';
var TOUCH_ACTION_MAP = getTouchActionProps();

var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;
var SUPPORT_TOUCH = 'ontouchstart' in win;
var SUPPORT_POINTER_EVENTS = prefixed(win, 'PointerEvent') !== undefined;
var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);
var INPUT_TYPE_TOUCH = 'touch';
var INPUT_TYPE_PEN = 'pen';
var INPUT_TYPE_MOUSE = 'mouse';
var INPUT_TYPE_KINECT = 'kinect';
var COMPUTE_INTERVAL = 25;
var INPUT_START = 1;
var INPUT_MOVE = 2;
var INPUT_END = 4;
var INPUT_CANCEL = 8;
var DIRECTION_NONE = 1;
var DIRECTION_LEFT = 2;
var DIRECTION_RIGHT = 4;
var DIRECTION_UP = 8;
var DIRECTION_DOWN = 16;
var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;
var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;
var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;
var PROPS_XY = ['x', 'y'];
var PROPS_CLIENT_XY = ['clientX', 'clientY'];

/**
 * @private
 * walk objects and arrays
 * @param {Object} obj
 * @param {Function} iterator
 * @param {Object} context
 */
function each$5(obj, iterator, context) {
  var i;

if (!obj) {
    return;
  }

if (obj.forEach) {
    obj.forEach(iterator, context);
  } else if (obj.length !== undefined) {
    i = 0;

function boolOrFn(val, args) {
  if (typeof val === TYPE_FUNCTION) {
    return val.apply(args ? args[0] || undefined : undefined, args);
  }

return val;
}

/**
 * @private
 * small indexOf wrapper
 * @param {String} str
 * @param {String} find
 * @returns {Boolean} found
 */
function inStr(str, find) {
  return str.indexOf(find) > -1;
}

/**
 * @private
 * when the touchActions are collected they are not a valid value, so we need to clean things up. *
 * @param {String} actions
 * @returns {*}
 */

function cleanTouchActions(actions) {
  // none
  if (inStr(actions, TOUCH_ACTION_NONE)) {
    return TOUCH_ACTION_NONE;
  }

var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);
  var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y); // if both pan-x and pan-y are set (different recognizers
  // for different directions, e.g. horizontal pan but vertical swipe?)
  // we need none (as otherwise with pan-x pan-y combined none of these
  // recognizers will work, since the browser would handle all panning

if (hasPanX && hasPanY) {
    return TOUCH_ACTION_NONE;
  } // pan-x OR pan-y

if (hasPanX || hasPanY) {
    return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;
  } // manipulation

if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {
    return TOUCH_ACTION_MANIPULATION;
  }

return TOUCH_ACTION_AUTO;
}

/**
 * @private
 * Touch Action
 * sets the touchAction property or uses the js alternative
 * @param {Manager} manager
 * @param {String} value
 * @constructor
 */

var TouchAction =
/*#__PURE__*/
function () {
  function TouchAction(manager, value) {
    this.manager = manager;
    this.set(value);
  }
  /**
   * @private
   * set the touchAction value on the element or enable the polyfill
   * @param {String} value
   */

var _proto = TouchAction.prototype;

_proto.set = function set(value) {
    // find out the touch-action by the event handlers
    if (value === TOUCH_ACTION_COMPUTE) {
      value = this.compute();
    }

if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {
      this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;
    }

this.actions = value.toLowerCase().trim();
  };
  /**
   * @private
   * just re-set the touchAction value
   */

_proto.compute = function compute() {
    var actions = [];
    each$5(this.manager.recognizers, function (recognizer) {
      if (boolOrFn(recognizer.options.enable, [recognizer])) {
        actions = actions.concat(recognizer.getTouchAction());
      }
    });
    return cleanTouchActions(actions.join(' '));
  };
  /**
   * @private
   * this method is called on each input cycle and provides the preventing of the browser behavior
   * @param {Object} input
   */

_proto.preventDefaults = function preventDefaults(input) {
    var srcEvent = input.srcEvent;
    var direction = input.offsetDirection; // if the touch action did prevented once this session

if (this.manager.session.prevented) {
      srcEvent.preventDefault();
      return;
    }

var actions = this.actions;
    var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];
    var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];
    var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];

if (isTapPointer && isTapMovement && isTapTouchTime) {
        return;
      }
    }

if (hasPanX && hasPanY) {
      // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent
      return;
    }

if (hasNone || hasPanY && direction & DIRECTION_HORIZONTAL || hasPanX && direction & DIRECTION_VERTICAL) {
      return this.preventSrc(srcEvent);
    }
  };
  /**
   * @private
   * call preventDefault to prevent the browser's default behavior (scrolling in most cases)
   * @param {Object} srcEvent
   */

_proto.preventSrc = function preventSrc(srcEvent) {
    this.manager.session.prevented = true;
    srcEvent.preventDefault();
  };

return TouchAction;
}();

/**
 * @private
 * find if a node is in the given parent
 * @method hasParent
 * @param {HTMLElement} node
 * @param {HTMLElement} parent
 * @return {Boolean} found
 */
function hasParent(node, parent) {
  while (node) {
    if (node === parent) {
      return true;
    }

node = node.parentNode;
  }

return false;
}

/**
 * @private
 * get the center of all the pointers
 * @param {Array} pointers
 * @return {Object} center contains `x` and `y` properties
 */

function getCenter(pointers) {
  var pointersLength = pointers.length; // no need to loop when only one touch

if (pointersLength === 1) {
    return {
      x: round$2(pointers[0].clientX),
      y: round$2(pointers[0].clientY)
    };
  }

var x = 0;
  var y = 0;
  var i = 0;

while (i < pointersLength) {
    x += pointers[i].clientX;
    y += pointers[i].clientY;
    i++;
  }

return {
    x: round$2(x / pointersLength),
    y: round$2(y / pointersLength)
  };
}

/**
 * @private
 * create a simple clone from the input used for storage of firstInput and firstMultiple
 * @param {Object} input
 * @returns {Object} clonedInputData
 */

function simpleCloneInputData(input) {
  // make a simple copy of the pointers because we will get a reference if we don't
  // we only need clientXY for the calculations
  var pointers = [];
  var i = 0;

while (i < input.pointers.length) {
    pointers[i] = {
      clientX: round$2(input.pointers[i].clientX),
      clientY: round$2(input.pointers[i].clientY)
    };
    i++;
  }

return {
    timeStamp: now(),
    pointers: pointers,
    center: getCenter(pointers),
    deltaX: input.deltaX,
    deltaY: input.deltaY
  };
}

function getDistance(p1, p2, props) {
  if (!props) {
    props = PROPS_XY;
  }

var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.sqrt(x * x + y * y);
}

/**
 * @private
 * calculate the angle between two coordinates
 * @param {Object} p1
 * @param {Object} p2
 * @param {Array} [props] containing x and y keys
 * @return {Number} angle
 */

function getAngle(p1, p2, props) {
  if (!props) {
    props = PROPS_XY;
  }

var x = p2[props[0]] - p1[props[0]];
  var y = p2[props[1]] - p1[props[1]];
  return Math.atan2(y, x) * 180 / Math.PI;
}

/**
 * @private
 * get the direction between two points
 * @param {Number} x
 * @param {Number} y
 * @return {Number} direction
 */

function getDirection(x, y) {
  if (x === y) {
    return DIRECTION_NONE;
  }

if (abs$1(x) >= abs$1(y)) {
    return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
  }

return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
}

function computeDeltaXY(session, input) {
  var center = input.center; // let { offsetDelta:offset = {}, prevDelta = {}, prevInput = {} } = session;
  // jscs throwing error on defalut destructured values and without defaults tests fail

var offset = session.offsetDelta || {};
  var prevDelta = session.prevDelta || {};
  var prevInput = session.prevInput || {};

if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {
    prevDelta = session.prevDelta = {
      x: prevInput.deltaX || 0,
      y: prevInput.deltaY || 0
    };
    offset = session.offsetDelta = {
      x: center.x,
      y: center.y
    };
  }

input.deltaX = prevDelta.x + (center.x - offset.x);
  input.deltaY = prevDelta.y + (center.y - offset.y);
}

/**
 * @private
 * calculate the velocity between two points. unit is in px per ms.
 * @param {Number} deltaTime
 * @param {Number} x
 * @param {Number} y
 * @return {Object} velocity `x` and `y`
 */
function getVelocity(deltaTime, x, y) {
  return {
    x: x / deltaTime || 0,
    y: y / deltaTime || 0
  };
}

function getScale(start, end) {
  return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);
}

/**
 * @private
 * calculate the rotation degrees between two pointersets
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} rotation
 */

function getRotation(start, end) {
  return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);
}

/**
 * @private
 * velocity is calculated every x ms
 * @param {Object} session
 * @param {Object} input
 */

function computeIntervalInputData(session, input) {
  var last = session.lastInterval || input;
  var deltaTime = input.timeStamp - last.timeStamp;
  var velocity;
  var velocityX;
  var velocityY;
  var direction;

if (input.eventType !== INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {
    var deltaX = input.deltaX - last.deltaX;
    var deltaY = input.deltaY - last.deltaY;
    var v = getVelocity(deltaTime, deltaX, deltaY);
    velocityX = v.x;
    velocityY = v.y;
    velocity = abs$1(v.x) > abs$1(v.y) ? v.x : v.y;
    direction = getDirection(deltaX, deltaY);
    session.lastInterval = input;
  } else {
    // use latest velocity info if it doesn't overtake a minimum period
    velocity = last.velocity;
    velocityX = last.velocityX;
    velocityY = last.velocityY;
    direction = last.direction;
  }

input.velocity = velocity;
  input.velocityX = velocityX;
  input.velocityY = velocityY;
  input.direction = direction;
}

/**
* @private
 * extend the data with some usable properties like scale, rotate, velocity etc
 * @param {Object} manager
 * @param {Object} input
 */

function computeInputData(manager, input) {
  var session = manager.session;
  var pointers = input.pointers;
  var pointersLength = pointers.length; // store the first input to calculate the distance and direction

if (!session.firstInput) {
    session.firstInput = simpleCloneInputData(input);
  } // to compute scale and rotation we need to store the multiple touches

if (pointersLength > 1 && !session.firstMultiple) {
    session.firstMultiple = simpleCloneInputData(input);
  } else if (pointersLength === 1) {
    session.firstMultiple = false;
  }

var firstInput = session.firstInput,
      firstMultiple = session.firstMultiple;
  var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;
  var center = input.center = getCenter(pointers);
  input.timeStamp = now();
  input.deltaTime = input.timeStamp - firstInput.timeStamp;
  input.angle = getAngle(offsetCenter, center);
  input.distance = getDistance(offsetCenter, center);
  computeDeltaXY(session, input);
  input.offsetDirection = getDirection(input.deltaX, input.deltaY);
  var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);
  input.overallVelocityX = overallVelocity.x;
  input.overallVelocityY = overallVelocity.y;
  input.overallVelocity = abs$1(overallVelocity.x) > abs$1(overallVelocity.y) ? overallVelocity.x : overallVelocity.y;
  input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;
  input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;
  input.maxPointers = !session.prevInput ? input.pointers.length : input.pointers.length > session.prevInput.maxPointers ? input.pointers.length : session.prevInput.maxPointers;
  computeIntervalInputData(session, input); // find the correct target

var target = manager.element;
  var srcEvent = input.srcEvent;
  var srcEventTarget;

if (srcEvent.composedPath) {
    srcEventTarget = srcEvent.composedPath()[0];
  } else if (srcEvent.path) {
    srcEventTarget = srcEvent.path[0];
  } else {
    srcEventTarget = srcEvent.target;
  }

if (hasParent(srcEventTarget, target)) {
    target = srcEventTarget;
  }

input.target = target;
}

/**
 * @private
 * handle input events
 * @param {Manager} manager
 * @param {String} eventType
 * @param {Object} input
 */

function inputHandler(manager, eventType, input) {
  var pointersLen = input.pointers.length;
  var changedPointersLen = input.changedPointers.length;
  var isFirst = eventType & INPUT_START && pointersLen - changedPointersLen === 0;
  var isFinal = eventType & (INPUT_END | INPUT_CANCEL) && pointersLen - changedPointersLen === 0;
  input.isFirst = !!isFirst;
  input.isFinal = !!isFinal;

if (isFirst) {
    manager.session = {};
  } // source event is the normalized value of the domEvents
  // like 'touchstart, mouseup, pointerdown'

input.eventType = eventType; // compute scale, rotation etc

computeInputData(manager, input); // emit secret event

manager.emit('hammer.input', input);
  manager.recognize(input);
  manager.session.prevInput = input;
}

/**
 * @private
 * split string on whitespace
 * @param {String} str
 * @returns {Array} words
 */
function splitStr(str) {
  return str.trim().split(/\s+/g);
}

/**
 * @private
 * addEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function addEventListeners(target, types, handler) {
  each$5(splitStr(types), function (type) {
    target.addEventListener(type, handler, false);
  });
}

/**
 * @private
 * removeEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */

function removeEventListeners(target, types, handler) {
  each$5(splitStr(types), function (type) {
    target.removeEventListener(type, handler, false);
  });
}

/**
 * @private
 * get the window object of an element
 * @param {HTMLElement} element
 * @returns {DocumentView|Window}
 */
function getWindowForElement(element) {
  var doc = element.ownerDocument || element;
  return doc.defaultView || doc.parentWindow || window;
}

/**
 * @private
 * create new input type manager
 * @param {Manager} manager
 * @param {Function} callback
 * @returns {Input}
 * @constructor
 */

var Input =
/*#__PURE__*/
function () {
  function Input(manager, callback) {
    var self = this;
    this.manager = manager;
    this.callback = callback;
    this.element = manager.element;
    this.target = manager.options.inputTarget; // smaller wrapper around the handler, for the scope and the enabled state of the manager,
    // so when disabled the input events are completely bypassed.

this.domHandler = function (ev) {
      if (boolOrFn(manager.options.enable, [manager])) {
        self.handler(ev);
      }
    };

this.init();
  }
  /**
   * @private
   * should handle the inputEvent data and trigger the callback
   * @virtual
   */

var _proto = Input.prototype;

_proto.handler = function handler() {};
  /**
   * @private
   * bind the events
   */

_proto.init = function init() {
    this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);
    this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);
    this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
  };
  /**
   * @private
   * unbind the events
   */

_proto.destroy = function destroy() {
    this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);
    this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);
    this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
  };

return Input;
}();

/**
 * @private
 * find if a array contains the object using indexOf or a simple polyFill
 * @param {Array} src
 * @param {String} find
 * @param {String} [findByKey]
 * @return {Boolean|Number} false when not found, or the index
 */
function inArray(src, find, findByKey) {
  if (src.indexOf && !findByKey) {
    return src.indexOf(find);
  } else {
    var i = 0;

while (i < src.length) {
      if (findByKey && src[i][findByKey] == find || !findByKey && src[i] === find) {
        // do not use === here, test fails
        return i;
      }

i++;
    }

return -1;
  }
}

var POINTER_INPUT_MAP = {
  pointerdown: INPUT_START,
  pointermove: INPUT_MOVE,
  pointerup: INPUT_END,
  pointercancel: INPUT_CANCEL,
  pointerout: INPUT_CANCEL
}; // in IE10 the pointer types is defined as an enum

var IE10_POINTER_TYPE_ENUM = {
  2: INPUT_TYPE_TOUCH,
  3: INPUT_TYPE_PEN,
  4: INPUT_TYPE_MOUSE,
  5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816

};
var POINTER_ELEMENT_EVENTS = 'pointerdown';
var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel'; // IE10 has prefixed support, and case-sensitive

if (win.MSPointerEvent && !win.PointerEvent) {
  POINTER_ELEMENT_EVENTS = 'MSPointerDown';
  POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';
}
/**
 * @private
 * Pointer events input
 * @constructor
 * @extends Input
 */

var PointerEventInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(PointerEventInput, _Input);

function PointerEventInput() {
    var _this;

var proto = PointerEventInput.prototype;
    proto.evEl = POINTER_ELEMENT_EVENTS;
    proto.evWin = POINTER_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.store = _this.manager.session.pointerEvents = [];
    return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */

var _proto = PointerEventInput.prototype;

_proto.handler = function handler(ev) {
    var store = this.store;
    var removePointer = false;
    var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');
    var eventType = POINTER_INPUT_MAP[eventTypeNormalized];
    var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;
    var isTouch = pointerType === INPUT_TYPE_TOUCH; // get index of the event in the store

var storeIndex = inArray(store, ev.pointerId, 'pointerId'); // start and mouse must be down

if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {
      if (storeIndex < 0) {
        store.push(ev);
        storeIndex = store.length - 1;
      }
    } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
      removePointer = true;
    } // it not found, so the pointer hasn't been down (so it's probably a hover)

if (storeIndex < 0) {
      return;
    } // update the event in the store

store[storeIndex] = ev;
    this.callback(this.manager, eventType, {
      pointers: store,
      changedPointers: [ev],
      pointerType: pointerType,
      srcEvent: ev
    });

if (removePointer) {
      // remove from the store
      store.splice(storeIndex, 1);
    }
  };

return PointerEventInput;
}(Input);

/**
 * @private
 * convert array-like objects to real arrays
 * @param {Object} obj
 * @returns {Array}
 */
function toArray(obj) {
  return Array.prototype.slice.call(obj, 0);
}

function uniqueArray(src, key, sort) {
  var results = [];
  var values = [];
  var i = 0;

while (i < src.length) {
    var val = key ? src[i][key] : src[i];

if (inArray(values, val) < 0) {
      results.push(src[i]);
    }

values[i] = val;
    i++;
  }

if (sort) {
    if (!key) {
      results = results.sort();
    } else {
      results = results.sort(function (a, b) {
        return a[key] > b[key];
      });
    }
  }

return results;
}

var TOUCH_INPUT_MAP = {
  touchstart: INPUT_START,
  touchmove: INPUT_MOVE,
  touchend: INPUT_END,
  touchcancel: INPUT_CANCEL
};
var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Multi-user touch events input
 * @constructor
 * @extends Input
 */

var TouchInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(TouchInput, _Input);

function TouchInput() {
    var _this;

TouchInput.prototype.evTarget = TOUCH_TARGET_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.targetIds = {}; // this.evTarget = TOUCH_TARGET_EVENTS;

return _this;
  }

var _proto = TouchInput.prototype;

_proto.handler = function handler(ev) {
    var type = TOUCH_INPUT_MAP[ev.type];
    var touches = getTouches.call(this, ev, type);

if (!touches) {
      return;
    }

this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH,
      srcEvent: ev
    });
  };

return TouchInput;
}(Input);

function getTouches(ev, type) {
  var allTouches = toArray(ev.touches);
  var targetIds = this.targetIds; // when there is only one touch, the process can be simplified

if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {
    targetIds[allTouches[0].identifier] = true;
    return [allTouches, allTouches];
  }

var i;
  var targetTouches;
  var changedTouches = toArray(ev.changedTouches);
  var changedTargetTouches = [];
  var target = this.target; // get target touches from touches

targetTouches = allTouches.filter(function (touch) {
    return hasParent(touch.target, target);
  }); // collect touches

if (type === INPUT_START) {
    i = 0;

while (i < targetTouches.length) {
      targetIds[targetTouches[i].identifier] = true;
      i++;
    }
  } // filter changed touches to only contain touches that exist in the collected target ids

i = 0;

while (i < changedTouches.length) {
    if (targetIds[changedTouches[i].identifier]) {
      changedTargetTouches.push(changedTouches[i]);
    } // cleanup removed touches

if (type & (INPUT_END | INPUT_CANCEL)) {
      delete targetIds[changedTouches[i].identifier];
    }

i++;
  }

if (!changedTargetTouches.length) {
    return;
  }

return [// merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'
  uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true), changedTargetTouches];
}

var MOUSE_INPUT_MAP = {
  mousedown: INPUT_START,
  mousemove: INPUT_MOVE,
  mouseup: INPUT_END
};
var MOUSE_ELEMENT_EVENTS = 'mousedown';
var MOUSE_WINDOW_EVENTS = 'mousemove mouseup';
/**
 * @private
 * Mouse events input
 * @constructor
 * @extends Input
 */

var MouseInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(MouseInput, _Input);

function MouseInput() {
    var _this;

var proto = MouseInput.prototype;
    proto.evEl = MOUSE_ELEMENT_EVENTS;
    proto.evWin = MOUSE_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.pressed = false; // mousedown state

return _this;
  }
  /**
   * @private
   * handle mouse events
   * @param {Object} ev
   */

var _proto = MouseInput.prototype;

_proto.handler = function handler(ev) {
    var eventType = MOUSE_INPUT_MAP[ev.type]; // on start we want to have the left mouse button down

if (eventType & INPUT_START && ev.button === 0) {
      this.pressed = true;
    }

if (eventType & INPUT_MOVE && ev.which !== 1) {
      eventType = INPUT_END;
    } // mouse must be down

if (!this.pressed) {
      return;
    }

if (eventType & INPUT_END) {
      this.pressed = false;
    }

this.callback(this.manager, eventType, {
      pointers: [ev],
      changedPointers: [ev],
      pointerType: INPUT_TYPE_MOUSE,
      srcEvent: ev
    });
  };

return MouseInput;
}(Input);

var DEDUP_TIMEOUT = 2500;
var DEDUP_DISTANCE = 25;

function setLastTouch(eventData) {
  var _eventData$changedPoi = eventData.changedPointers,
      touch = _eventData$changedPoi[0];

if (touch.identifier === this.primaryTouch) {
    var lastTouch = {
      x: touch.clientX,
      y: touch.clientY
    };
    var lts = this.lastTouches;
    this.lastTouches.push(lastTouch);

var removeLastTouch = function removeLastTouch() {
      var i = lts.indexOf(lastTouch);

if (i > -1) {
        lts.splice(i, 1);
      }
    };

setTimeout(removeLastTouch, DEDUP_TIMEOUT);
  }
}

function isSyntheticEvent(eventData) {
  var x = eventData.srcEvent.clientX;
  var y = eventData.srcEvent.clientY;

for (var i = 0; i < this.lastTouches.length; i++) {
    var t = this.lastTouches[i];
    var dx = Math.abs(x - t.x);
    var dy = Math.abs(y - t.y);

if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {
      return true;
    }
  }

return false;
}

var TouchMouseInput =
/*#__PURE__*/
function () {
  var TouchMouseInput =
  /*#__PURE__*/
  function (_Input) {
    _inheritsLoose(TouchMouseInput, _Input);

function TouchMouseInput(_manager, callback) {
      var _this;

_this = _Input.call(this, _manager, callback) || this;

_this.handler = function (manager, inputEvent, inputData) {
        var isTouch = inputData.pointerType === INPUT_TYPE_TOUCH;
        var isMouse = inputData.pointerType === INPUT_TYPE_MOUSE;

if (isTouch) {
          recordTouches.call(_assertThisInitialized$1(_assertThisInitialized$1(_this)), inputEvent, inputData);
        } else if (isMouse && isSyntheticEvent.call(_assertThisInitialized$1(_assertThisInitialized$1(_this)), inputData)) {
          return;
        }

_this.callback(manager, inputEvent, inputData);
      };

_this.touch = new TouchInput(_this.manager, _this.handler);
      _this.mouse = new MouseInput(_this.manager, _this.handler);
      _this.primaryTouch = null;
      _this.lastTouches = [];
      return _this;
    }
    /**
     * @private
     * handle mouse and touch events
     * @param {Hammer} manager
     * @param {String} inputEvent
     * @param {Object} inputData
     */

var _proto = TouchMouseInput.prototype;

/**
     * @private
     * remove the event listeners
     */
    _proto.destroy = function destroy() {
      this.touch.destroy();
      this.mouse.destroy();
    };

return TouchMouseInput;
  }(Input);

return TouchMouseInput;
}();

/**
 * @private
 * create new input type manager
 * called by the Manager constructor
 * @param {Hammer} manager
 * @returns {Input}
 */

function createInputInstance(manager) {
  var Type; // let inputClass = manager.options.inputClass;

var inputClass = manager.options.inputClass;

if (inputClass) {
    Type = inputClass;
  } else if (SUPPORT_POINTER_EVENTS) {
    Type = PointerEventInput;
  } else if (SUPPORT_ONLY_TOUCH) {
    Type = TouchInput;
  } else if (!SUPPORT_TOUCH) {
    Type = MouseInput;
  } else {
    Type = TouchMouseInput;
  }

return new Type(manager, inputHandler);
}

function invokeArrayArg(arg, fn, context) {
  if (Array.isArray(arg)) {
    each$5(arg, context[fn], context);
    return true;
  }

return false;
}

var STATE_POSSIBLE = 1;
var STATE_BEGAN = 2;
var STATE_CHANGED = 4;
var STATE_ENDED = 8;
var STATE_RECOGNIZED = STATE_ENDED;
var STATE_CANCELLED = 16;
var STATE_FAILED = 32;

/**
 * @private
 * get a unique id
 * @returns {number} uniqueId
 */
var _uniqueId = 1;
function uniqueId() {
  return _uniqueId++;
}

/**
 * @private
 * get a recognizer by name if it is bound to a manager
 * @param {Recognizer|String} otherRecognizer
 * @param {Recognizer} recognizer
 * @returns {Recognizer}
 */
function getRecognizerByNameIfManager(otherRecognizer, recognizer) {
  var manager = recognizer.manager;

if (manager) {
    return manager.get(otherRecognizer);
  }

return otherRecognizer;
}

/**
 * @private
 * get a usable string, used as event postfix
 * @param {constant} state
 * @returns {String} state
 */

return '';
}

/**
 * @private
 * Recognizer
 * Every recognizer needs to extend from this class.
 * @constructor
 * @param {Object} options
 */

var Recognizer =
/*#__PURE__*/
function () {
  function Recognizer(options) {
    if (options === void 0) {
      options = {};
    }

this.options = _extends({
      enable: true
    }, options);
    this.id = uniqueId();
    this.manager = null; // default is enable true

this.state = STATE_POSSIBLE;
    this.simultaneous = {};
    this.requireFail = [];
  }
  /**
   * @private
   * set options
   * @param {Object} options
   * @return {Recognizer}
   */

var _proto = Recognizer.prototype;

_proto.set = function set(options) {
    assign$1(this.options, options); // also update the touchAction, in case something changed about the directions/enabled state

_proto.recognizeWith = function recognizeWith(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {
      return this;
    }

var simultaneous = this.simultaneous;
    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);

if (!simultaneous[otherRecognizer.id]) {
      simultaneous[otherRecognizer.id] = otherRecognizer;
      otherRecognizer.recognizeWith(this);
    }

_proto.dropRecognizeWith = function dropRecognizeWith(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {
      return this;
    }

otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
    delete this.simultaneous[otherRecognizer.id];
    return this;
  };
  /**
   * @private
   * recognizer can only run when an other is failing
   * @param {Recognizer} otherRecognizer
   * @returns {Recognizer} this
   */

_proto.requireFailure = function requireFailure(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {
      return this;
    }

var requireFail = this.requireFail;
    otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);

if (inArray(requireFail, otherRecognizer) === -1) {
      requireFail.push(otherRecognizer);
      otherRecognizer.requireFailure(this);
    }

_proto.dropRequireFailure = function dropRequireFailure(otherRecognizer) {
    if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {
      return this;
    }

otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
    var index = inArray(this.requireFail, otherRecognizer);

if (index > -1) {
      this.requireFail.splice(index, 1);
    }

return this;
  };
  /**
   * @private
   * has require failures boolean
   * @returns {boolean}
   */

_proto.emit = function emit(input) {
    var self = this;
    var state = this.state;

function emit(event) {
      self.manager.emit(event, input);
    } // 'panstart' and 'panmove'

if (state < STATE_ENDED) {
      emit(self.options.event + stateStr(state));
    }

emit(self.options.event); // simple 'eventName' events

if (input.additionalEvent) {
      // additional event(panleft, panright, pinchin, pinchout...)
      emit(input.additionalEvent);
    } // panend and pancancel

if (state >= STATE_ENDED) {
      emit(self.options.event + stateStr(state));
    }
  };
  /**
   * @private
   * Check that all the require failure recognizers has failed,
   * if true, it emits a gesture event,
   * otherwise, setup the state to FAILED.
   * @param {Object} input
   */

_proto.tryEmit = function tryEmit(input) {
    if (this.canEmit()) {
      return this.emit(input);
    } // it's failing anyway

this.state = STATE_FAILED;
  };
  /**
   * @private
   * can we emit?
   * @returns {boolean}
   */

_proto.canEmit = function canEmit() {
    var i = 0;

while (i < this.requireFail.length) {
      if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {
        return false;
      }

i++;
    }

return true;
  };
  /**
   * @private
   * update the recognizer
   * @param {Object} inputData
   */

_proto.recognize = function recognize(inputData) {
    // make a new copy of the inputData
    // so we can change the inputData without messing up the other recognizers
    var inputDataClone = assign$1({}, inputData); // is is enabled and allow recognizing?

if (!boolOrFn(this.options.enable, [this, inputDataClone])) {
      this.reset();
      this.state = STATE_FAILED;
      return;
    } // reset when we've reached the end

if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {
      this.state = STATE_POSSIBLE;
    }

this.state = this.process(inputDataClone); // the recognizer has recognized a gesture
    // so trigger an event

if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {
      this.tryEmit(inputDataClone);
    }
  };
  /**
   * @private
   * return the state of the recognizer
   * the actual recognizing happens in this method
   * @virtual
   * @param {Object} inputData
   * @returns {constant} STATE
   */

/* jshint ignore:start */

_proto.process = function process(inputData) {};
  /* jshint ignore:end */

/**
   * @private
   * return the preferred touch-action
   * @virtual
   * @returns {Array}
   */

_proto.reset = function reset() {};

return Recognizer;
}();

var TapRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(TapRecognizer, _Recognizer);

function TapRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _Recognizer.call(this, _extends({
      event: 'tap',
      pointers: 1,
      taps: 1,
      interval: 300,
      // max time between the multi-tap taps
      time: 250,
      // max time of the pointer to be down (like finger on the screen)
      threshold: 9,
      // a minimal movement is ok, but keep it low
      posThreshold: 10
    }, options)) || this; // previous time and center,
    // used for tap counting

_this.pTime = false;
    _this.pCenter = false;
    _this._timer = null;
    _this._input = null;
    _this.count = 0;
    return _this;
  }

var _proto = TapRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_MANIPULATION];
  };

_proto.process = function process(input) {
    var _this2 = this;

if (input.eventType & INPUT_START && this.count === 0) {
      return this.failTimeout();
    } // we only allow little movement
    // and we've reached an end event, so a tap is possible

if (validMovement && validTouchTime && validPointers) {
      if (input.eventType !== INPUT_END) {
        return this.failTimeout();
      }

var validInterval = this.pTime ? input.timeStamp - this.pTime < options.interval : true;
      var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;
      this.pTime = input.timeStamp;
      this.pCenter = input.center;

if (!validMultiTap || !validInterval) {
        this.count = 1;
      } else {
        this.count += 1;
      }

this._input = input; // if tap count matches we have recognized it,
      // else it has began recognizing...

var tapCount = this.count % options.taps;

if (tapCount === 0) {
        // no failing requirements, immediately trigger the tap event
        // or wait as long as the multitap interval to trigger
        if (!this.hasRequireFailures()) {
          return STATE_RECOGNIZED;
        } else {
          this._timer = setTimeout(function () {
            _this2.state = STATE_RECOGNIZED;

_this2.tryEmit();
          }, options.interval);
          return STATE_BEGAN;
        }
      }
    }

return STATE_FAILED;
  };

_proto.failTimeout = function failTimeout() {
    var _this3 = this;

this._timer = setTimeout(function () {
      _this3.state = STATE_FAILED;
    }, this.options.interval);
    return STATE_FAILED;
  };

_proto.reset = function reset() {
    clearTimeout(this._timer);
  };

_proto.emit = function emit() {
    if (this.state === STATE_RECOGNIZED) {
      this._input.tapCount = this.count;
      this.manager.emit(this.options.event, this._input);
    }
  };

return TapRecognizer;
}(Recognizer);

/**
 * @private
 * This recognizer is just used as a base for the simple attribute recognizers.
 * @constructor
 * @extends Recognizer
 */

var AttrRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(AttrRecognizer, _Recognizer);

function AttrRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _Recognizer.call(this, _extends({
      pointers: 1
    }, options)) || this;
  }
  /**
   * @private
   * Used to check if it the recognizer receives valid input, like input.distance > 10.
   * @memberof AttrRecognizer
   * @param {Object} input
   * @returns {Boolean} recognized
   */

var _proto = AttrRecognizer.prototype;

_proto.process = function process(input) {
    var state = this.state;
    var eventType = input.eventType;
    var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);
    var isValid = this.attrTest(input); // on cancel input and we've recognized before, return STATE_CANCELLED

if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {
      return state | STATE_CANCELLED;
    } else if (isRecognized || isValid) {
      if (eventType & INPUT_END) {
        return state | STATE_ENDED;
      } else if (!(state & STATE_BEGAN)) {
        return STATE_BEGAN;
      }

return state | STATE_CHANGED;
    }

return STATE_FAILED;
  };

return AttrRecognizer;
}(Recognizer);

/**
 * @private
 * direction cons to string
 * @param {constant} direction
 * @returns {String}
 */

return '';
}

/**
 * @private
 * Pan
 * Recognized when the pointer is down and moved in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var PanRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(PanRecognizer, _AttrRecognizer);

function PanRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _AttrRecognizer.call(this, _extends({
      event: 'pan',
      threshold: 10,
      pointers: 1,
      direction: DIRECTION_ALL
    }, options)) || this;
    _this.pX = null;
    _this.pY = null;
    return _this;
  }

var _proto = PanRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    var direction = this.options.direction;
    var actions = [];

if (direction & DIRECTION_HORIZONTAL) {
      actions.push(TOUCH_ACTION_PAN_Y);
    }

if (direction & DIRECTION_VERTICAL) {
      actions.push(TOUCH_ACTION_PAN_X);
    }

return actions;
  };

if (!(direction & options.direction)) {
      if (options.direction & DIRECTION_HORIZONTAL) {
        direction = x === 0 ? DIRECTION_NONE : x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
        hasMoved = x !== this.pX;
        distance = Math.abs(input.deltaX);
      } else {
        direction = y === 0 ? DIRECTION_NONE : y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
        hasMoved = y !== this.pY;
        distance = Math.abs(input.deltaY);
      }
    }

input.direction = direction;
    return hasMoved && distance > options.threshold && direction & options.direction;
  };

_proto.attrTest = function attrTest(input) {
    return AttrRecognizer.prototype.attrTest.call(this, input) && ( // replace with a super call
    this.state & STATE_BEGAN || !(this.state & STATE_BEGAN) && this.directionTest(input));
  };

_proto.emit = function emit(input) {
    this.pX = input.deltaX;
    this.pY = input.deltaY;
    var direction = directionStr(input.direction);

if (direction) {
      input.additionalEvent = this.options.event + direction;
    }

_AttrRecognizer.prototype.emit.call(this, input);
  };

return PanRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Swipe
 * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */

var SwipeRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(SwipeRecognizer, _AttrRecognizer);

function SwipeRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends({
      event: 'swipe',
      threshold: 10,
      velocity: 0.3,
      direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,
      pointers: 1
    }, options)) || this;
  }

var _proto = SwipeRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return PanRecognizer.prototype.getTouchAction.call(this);
  };

_proto.attrTest = function attrTest(input) {
    var direction = this.options.direction;
    var velocity;

if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {
      velocity = input.overallVelocity;
    } else if (direction & DIRECTION_HORIZONTAL) {
      velocity = input.overallVelocityX;
    } else if (direction & DIRECTION_VERTICAL) {
      velocity = input.overallVelocityY;
    }

return _AttrRecognizer.prototype.attrTest.call(this, input) && direction & input.offsetDirection && input.distance > this.options.threshold && input.maxPointers === this.options.pointers && abs$1(velocity) > this.options.velocity && input.eventType & INPUT_END;
  };

_proto.emit = function emit(input) {
    var direction = directionStr(input.offsetDirection);

if (direction) {
      this.manager.emit(this.options.event + direction, input);
    }

this.manager.emit(this.options.event, input);
  };

return SwipeRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Pinch
 * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).
 * @constructor
 * @extends AttrRecognizer
 */

var PinchRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(PinchRecognizer, _AttrRecognizer);

function PinchRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends({
      event: 'pinch',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

var _proto = PinchRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE];
  };

_proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);
  };

_proto.emit = function emit(input) {
    if (input.scale !== 1) {
      var inOut = input.scale < 1 ? 'in' : 'out';
      input.additionalEvent = this.options.event + inOut;
    }

_AttrRecognizer.prototype.emit.call(this, input);
  };

return PinchRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Rotate
 * Recognized when two or more pointer are moving in a circular motion.
 * @constructor
 * @extends AttrRecognizer
 */

var RotateRecognizer =
/*#__PURE__*/
function (_AttrRecognizer) {
  _inheritsLoose(RotateRecognizer, _AttrRecognizer);

function RotateRecognizer(options) {
    if (options === void 0) {
      options = {};
    }

return _AttrRecognizer.call(this, _extends({
      event: 'rotate',
      threshold: 0,
      pointers: 2
    }, options)) || this;
  }

var _proto = RotateRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_NONE];
  };

_proto.attrTest = function attrTest(input) {
    return _AttrRecognizer.prototype.attrTest.call(this, input) && (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);
  };

return RotateRecognizer;
}(AttrRecognizer);

/**
 * @private
 * Press
 * Recognized when the pointer is down for x ms without any movement.
 * @constructor
 * @extends Recognizer
 */

var PressRecognizer =
/*#__PURE__*/
function (_Recognizer) {
  _inheritsLoose(PressRecognizer, _Recognizer);

function PressRecognizer(options) {
    var _this;

if (options === void 0) {
      options = {};
    }

_this = _Recognizer.call(this, _extends({
      event: 'press',
      pointers: 1,
      time: 251,
      // minimal time of the pointer to be pressed
      threshold: 9
    }, options)) || this;
    _this._timer = null;
    _this._input = null;
    return _this;
  }

var _proto = PressRecognizer.prototype;

_proto.getTouchAction = function getTouchAction() {
    return [TOUCH_ACTION_AUTO];
  };

_proto.process = function process(input) {
    var _this2 = this;

if (!validMovement || !validPointers || input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime) {
      this.reset();
    } else if (input.eventType & INPUT_START) {
      this.reset();
      this._timer = setTimeout(function () {
        _this2.state = STATE_RECOGNIZED;

_this2.tryEmit();
      }, options.time);
    } else if (input.eventType & INPUT_END) {
      return STATE_RECOGNIZED;
    }

return STATE_FAILED;
  };

_proto.reset = function reset() {
    clearTimeout(this._timer);
  };

_proto.emit = function emit(input) {
    if (this.state !== STATE_RECOGNIZED) {
      return;
    }

if (input && input.eventType & INPUT_END) {
      this.manager.emit(this.options.event + "up", input);
    } else {
      this._input.timeStamp = now();
      this.manager.emit(this.options.event, this._input);
    }
  };

return PressRecognizer;
}(Recognizer);

var defaults$1 = {
  /**
   * @private
   * set if DOM events are being triggered.
   * But this is slower and unused by simple implementations, so disabled by default.
   * @type {Boolean}
   * @default false
   */
  domEvents: false,

/**
   * @private
   * @type {Boolean}
   * @default true
   */
  enable: true,

/**
   * @private
   * force an input class
   * @type {Null|Function}
   * @default null
   */
  inputClass: null,

/**
     * @private
     * Disable the Windows Phone grippers when pressing an element.
     * @type {String}
     * @default 'none'
     */
    touchSelect: "none",

/**
     * @private
     * Specifies whether zooming is enabled. Used by IE10>
     * @type {String}
     * @default 'none'
     */
    contentZooming: "none",

var preset = [[RotateRecognizer, {
  enable: false
}], [PinchRecognizer, {
  enable: false
}, ['rotate']], [SwipeRecognizer, {
  direction: DIRECTION_HORIZONTAL
}], [PanRecognizer, {
  direction: DIRECTION_HORIZONTAL
}, ['swipe']], [TapRecognizer], [TapRecognizer, {
  event: 'doubletap',
  taps: 2
}, ['tap']], [PressRecognizer]];

var STOP = 1;
var FORCED_STOP = 2;
/**
 * @private
 * add/remove the css properties as defined in manager.options.cssProps
 * @param {Manager} manager
 * @param {Boolean} add
 */

function toggleCssProps(manager, add) {
  var element = manager.element;

if (!element.style) {
    return;
  }

var prop;
  each$5(manager.options.cssProps, function (value, name) {
    prop = prefixed(element.style, name);

if (add) {
      manager.oldCssProps[prop] = element.style[prop];
      element.style[prop] = value;
    } else {
      element.style[prop] = manager.oldCssProps[prop] || "";
    }
  });

if (!add) {
    manager.oldCssProps = {};
  }
}
/**
 * @private
 * trigger dom event
 * @param {String} event
 * @param {Object} data
 */

var Manager =
/*#__PURE__*/
function () {
  function Manager(element, options) {
    var _this = this;

this.options = assign$1({}, defaults$1, options || {});
    this.options.inputTarget = this.options.inputTarget || element;
    this.handlers = {};
    this.session = {};
    this.recognizers = [];
    this.oldCssProps = {};
    this.element = element;
    this.input = createInputInstance(this);
    this.touchAction = new TouchAction(this, this.options.touchAction);
    toggleCssProps(this, true);
    each$5(this.options.recognizers, function (item) {
      var recognizer = _this.add(new item[0](item[1]));

var _proto = Manager.prototype;

_proto.set = function set(options) {
    assign$1(this.options, options); // Options that need a little more setup

if (options.touchAction) {
      this.touchAction.update();
    }

if (options.inputTarget) {
      // Clean up existing event listeners and reinitialize
      this.input.destroy();
      this.input.target = options.inputTarget;
      this.input.init();
    }

_proto.stop = function stop(force) {
    this.session.stopped = force ? FORCED_STOP : STOP;
  };
  /**
   * @private
   * run the recognizers!
   * called by the inputHandler function on every movement of the pointers (touches)
   * it walks through all the recognizers and tries to detect the gesture that is being made
   * @param {Object} inputData
   */

_proto.recognize = function recognize(inputData) {
    var session = this.session;

if (session.stopped) {
      return;
    } // run the touch-action polyfill

var curRecognizer = session.curRecognizer; // reset when the last recognizer is recognized
    // or when we're in a new session

if (!curRecognizer || curRecognizer && curRecognizer.state & STATE_RECOGNIZED) {
      session.curRecognizer = null;
      curRecognizer = null;
    }

var i = 0;

if (session.stopped !== FORCED_STOP && ( // 1
      !curRecognizer || recognizer === curRecognizer || // 2
      recognizer.canRecognizeWith(curRecognizer))) {
        // 3
        recognizer.recognize(inputData);
      } else {
        recognizer.reset();
      } // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the
      // current active recognizer. but only if we don't already have an active recognizer

if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {
        session.curRecognizer = recognizer;
        curRecognizer = recognizer;
      }

i++;
    }
  };
  /**
   * @private
   * get a recognizer by its event name.
   * @param {Recognizer|String} recognizer
   * @returns {Recognizer|Null}
   */

_proto.get = function get(recognizer) {
    if (recognizer instanceof Recognizer) {
      return recognizer;
    }

var recognizers = this.recognizers;

for (var i = 0; i < recognizers.length; i++) {
      if (recognizers[i].options.event === recognizer) {
        return recognizers[i];
      }
    }

_proto.add = function add(recognizer) {
    if (invokeArrayArg(recognizer, "add", this)) {
      return this;
    } // remove existing

var existing = this.get(recognizer.options.event);

if (existing) {
      this.remove(existing);
    }

_proto.remove = function remove(recognizer) {
    if (invokeArrayArg(recognizer, "remove", this)) {
      return this;
    }

var targetRecognizer = this.get(recognizer); // let's make sure this recognizer exists

if (recognizer) {
      var recognizers = this.recognizers;
      var index = inArray(recognizers, targetRecognizer);

if (index !== -1) {
        recognizers.splice(index, 1);
        this.touchAction.update();
      }
    }

return this;
  };
  /**
   * @private
   * bind event
   * @param {String} events
   * @param {Function} handler
   * @returns {EventEmitter} this
   */

_proto.on = function on(events, handler) {
    if (events === undefined || handler === undefined) {
      return this;
    }

_proto.off = function off(events, handler) {
    if (events === undefined) {
      return this;
    }

_proto.emit = function emit(event, data) {
    // we also want to trigger dom events
    if (this.options.domEvents) {
      triggerDomEvent(event, data);
    } // no handlers, so skip it all

var handlers = this.handlers[event] && this.handlers[event].slice();

if (!handlers || !handlers.length) {
      return;
    }

data.type = event;

data.preventDefault = function () {
      data.srcEvent.preventDefault();
    };

var i = 0;

_proto.destroy = function destroy() {
    this.element && toggleCssProps(this, false);
    this.handlers = {};
    this.session = {};
    this.input.destroy();
    this.element = null;
  };

return Manager;
}();

var SINGLE_TOUCH_INPUT_MAP = {
  touchstart: INPUT_START,
  touchmove: INPUT_MOVE,
  touchend: INPUT_END,
  touchcancel: INPUT_CANCEL
};
var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';
var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';
/**
 * @private
 * Touch events input
 * @constructor
 * @extends Input
 */

var SingleTouchInput =
/*#__PURE__*/
function (_Input) {
  _inheritsLoose(SingleTouchInput, _Input);

function SingleTouchInput() {
    var _this;

var proto = SingleTouchInput.prototype;
    proto.evTarget = SINGLE_TOUCH_TARGET_EVENTS;
    proto.evWin = SINGLE_TOUCH_WINDOW_EVENTS;
    _this = _Input.apply(this, arguments) || this;
    _this.started = false;
    return _this;
  }

var _proto = SingleTouchInput.prototype;

_proto.handler = function handler(ev) {
    var type = SINGLE_TOUCH_INPUT_MAP[ev.type]; // should we handle the touch events?

if (type === INPUT_START) {
      this.started = true;
    }

if (!this.started) {
      return;
    }

var touches = normalizeSingleTouches.call(this, ev, type); // when done, reset the started state

if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {
      this.started = false;
    }

this.callback(this.manager, type, {
      pointers: touches[0],
      changedPointers: touches[1],
      pointerType: INPUT_TYPE_TOUCH,
      srcEvent: ev
    });
  };

return SingleTouchInput;
}(Input);

function normalizeSingleTouches(ev, type) {
  var all = toArray(ev.touches);
  var changed = toArray(ev.changedTouches);

if (type & (INPUT_END | INPUT_CANCEL)) {
    all = uniqueArray(all.concat(changed), 'identifier', true);
  }

return [all, changed];
}

/**
 * @private
 * wrap a method with a deprecation warning and stack trace
 * @param {Function} method
 * @param {String} name
 * @param {String} message
 * @returns {Function} A new function wrapping the supplied method.
 */
function deprecate(method, name, message) {
  var deprecationMessage = "DEPRECATED METHOD: " + name + "\n" + message + " AT \n";
  return function () {
    var e = new Error('get-stack-trace');
    var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '').replace(/^\s+at\s+/gm, '').replace(/^Object.<anonymous>\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';
    var log = window.console && (window.console.warn || window.console.log);

if (log) {
      log.call(window.console, deprecationMessage, stack);
    }

return method.apply(this, arguments);
  };
}

var extend$1 = deprecate(function (dest, src, merge) {
  var keys = Object.keys(src);
  var i = 0;

while (i < keys.length) {
    if (!merge || merge && dest[keys[i]] === undefined) {
      dest[keys[i]] = src[keys[i]];
    }

i++;
  }

return dest;
}, 'extend', 'Use `assign`.');

var merge$2 = deprecate(function (dest, src) {
  return extend$1(dest, src, true);
}, 'merge', 'Use `assign`.');

/**
 * @private
 * simple class inheritance
 * @param {Function} child
 * @param {Function} base
 * @param {Object} [properties]
 */

function inherit(child, base, properties) {
  var baseP = base.prototype;
  var childP;
  childP = child.prototype = Object.create(baseP);
  childP.constructor = child;
  childP._super = baseP;

if (properties) {
    assign$1(childP, properties);
  }
}

/**
 * @private
 * simple function bind
 * @param {Function} fn
 * @param {Object} context
 * @returns {Function}
 */
function bindFn(fn, context) {
  return function boundFn() {
    return fn.apply(context, arguments);
  };
}

/**
 * @private
 * Simple way to create a manager with a default set of recognizers.
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */

var Hammer$2 =
/*#__PURE__*/
function () {
  var Hammer =
  /**
    * @private
    * @const {string}
    */
  function Hammer(element, options) {
    if (options === void 0) {
      options = {};
    }

return new Manager(element, _extends({
      recognizers: preset.concat()
    }, options));
  };

Hammer.VERSION = "2.0.17-rc";
  Hammer.DIRECTION_ALL = DIRECTION_ALL;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN;
  Hammer.DIRECTION_LEFT = DIRECTION_LEFT;
  Hammer.DIRECTION_RIGHT = DIRECTION_RIGHT;
  Hammer.DIRECTION_UP = DIRECTION_UP;
  Hammer.DIRECTION_HORIZONTAL = DIRECTION_HORIZONTAL;
  Hammer.DIRECTION_VERTICAL = DIRECTION_VERTICAL;
  Hammer.DIRECTION_NONE = DIRECTION_NONE;
  Hammer.DIRECTION_DOWN = DIRECTION_DOWN;
  Hammer.INPUT_START = INPUT_START;
  Hammer.INPUT_MOVE = INPUT_MOVE;
  Hammer.INPUT_END = INPUT_END;
  Hammer.INPUT_CANCEL = INPUT_CANCEL;
  Hammer.STATE_POSSIBLE = STATE_POSSIBLE;
  Hammer.STATE_BEGAN = STATE_BEGAN;
  Hammer.STATE_CHANGED = STATE_CHANGED;
  Hammer.STATE_ENDED = STATE_ENDED;
  Hammer.STATE_RECOGNIZED = STATE_RECOGNIZED;
  Hammer.STATE_CANCELLED = STATE_CANCELLED;
  Hammer.STATE_FAILED = STATE_FAILED;
  Hammer.Manager = Manager;
  Hammer.Input = Input;
  Hammer.TouchAction = TouchAction;
  Hammer.TouchInput = TouchInput;
  Hammer.MouseInput = MouseInput;
  Hammer.PointerEventInput = PointerEventInput;
  Hammer.TouchMouseInput = TouchMouseInput;
  Hammer.SingleTouchInput = SingleTouchInput;
  Hammer.Recognizer = Recognizer;
  Hammer.AttrRecognizer = AttrRecognizer;
  Hammer.Tap = TapRecognizer;
  Hammer.Pan = PanRecognizer;
  Hammer.Swipe = SwipeRecognizer;
  Hammer.Pinch = PinchRecognizer;
  Hammer.Rotate = RotateRecognizer;
  Hammer.Press = PressRecognizer;
  Hammer.on = addEventListeners;
  Hammer.off = removeEventListeners;
  Hammer.each = each$5;
  Hammer.merge = merge$2;
  Hammer.extend = extend$1;
  Hammer.bindFn = bindFn;
  Hammer.assign = assign$1;
  Hammer.inherit = inherit;
  Hammer.bindFn = bindFn;
  Hammer.prefixed = prefixed;
  Hammer.toArray = toArray;
  Hammer.inArray = inArray;
  Hammer.uniqueArray = uniqueArray;
  Hammer.splitStr = splitStr;
  Hammer.boolOrFn = boolOrFn;
  Hammer.hasParent = hasParent;
  Hammer.addEventListeners = addEventListeners;
  Hammer.removeEventListeners = removeEventListeners;
  Hammer.defaults = assign$1({}, defaults$1, {
    preset: preset
  });
  return Hammer;
}();

//  style loader but by script tag, not by the loader.

Hammer$2.defaults;

var RealHammer = Hammer$2;

/**
 * Use this symbol to delete properies in deepObjectAssign.
 */
_Symbol("DELETE");

/**
 * Seedable, fast and reasonably good (not crypto but more than okay for our
 * needs) random number generator.
 *
 * @remarks
 * Adapted from {@link https://web.archive.org/web/20110429100736/http://baagoe.com:80/en/RandomMusings/javascript}.
 * Original algorithm created by Johannes Baagøe \<baagoe\@baagoe.com\> in 2010.
 */
/**
 * Create a seeded pseudo random generator based on Alea by Johannes Baagøe.
 *
 * @param seed - All supplied arguments will be used as a seed. In case nothing
 * is supplied the current time will be used to seed the generator.
 * @returns A ready to use seeded generator.
 */
function Alea() {
  for (var _len3 = arguments.length, seed = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
    seed[_key3] = arguments[_key3];
  }
  return AleaImplementation(seed.length ? seed : [_Date$now()]);
}
/**
 * An implementation of [[Alea]] without user input validation.
 *
 * @param seed - The data that will be used to seed the generator.
 * @returns A ready to use seeded generator.
 */
function AleaImplementation(seed) {
  var _mashSeed = mashSeed(seed),
    _mashSeed2 = _slicedToArray(_mashSeed, 3),
    s0 = _mashSeed2[0],
    s1 = _mashSeed2[1],
    s2 = _mashSeed2[2];
  var c = 1;
  var random = function random() {
    var t = 2091639 * s0 + c * 2.3283064365386963e-10; // 2^-32
    s0 = s1;
    s1 = s2;
    return s2 = t - (c = t | 0);
  };
  random.uint32 = function () {
    return random() * 0x100000000;
  }; // 2^32
  random.fract53 = function () {
    return random() + (random() * 0x200000 | 0) * 1.1102230246251565e-16;
  }; // 2^-53
  random.algorithm = "Alea";
  random.seed = seed;
  random.version = "0.9";
  return random;
}
/**
 * Turn arbitrary data into values [[AleaImplementation]] can use to generate
 * random numbers.
 *
 * @param seed - Arbitrary data that will be used as the seed.
 * @returns Three numbers to use as initial values for [[AleaImplementation]].
 */
function mashSeed() {
  var mash = Mash();
  var s0 = mash(" ");
  var s1 = mash(" ");
  var s2 = mash(" ");
  for (var i = 0; i < arguments.length; i++) {
    s0 -= mash(i < 0 || arguments.length <= i ? undefined : arguments[i]);
    if (s0 < 0) {
      s0 += 1;
    }
    s1 -= mash(i < 0 || arguments.length <= i ? undefined : arguments[i]);
    if (s1 < 0) {
      s1 += 1;
    }
    s2 -= mash(i < 0 || arguments.length <= i ? undefined : arguments[i]);
    if (s2 < 0) {
      s2 += 1;
    }
  }
  return [s0, s1, s2];
}
/**
 * Create a new mash function.
 *
 * @returns A nonpure function that takes arbitrary [[Mashable]] data and turns
 * them into numbers.
 */
function Mash() {
  var n = 0xefc8249d;
  return function (data) {
    var string = data.toString();
    for (var i = 0; i < string.length; i++) {
      n += string.charCodeAt(i);
      var h = 0.02519603282416938 * n;
      n = h >>> 0;
      h -= n;
      h *= n;
      n = h >>> 0;
      h -= n;
      n += h * 0x100000000; // 2^32
    }

return (n >>> 0) * 2.3283064365386963e-10; // 2^-32
  };
}

/**
 * Setup a mock hammer.js object, for unit testing.
 *
 * Inspiration: https://github.com/uber/deck.gl/pull/658
 *
 * @returns {{on: noop, off: noop, destroy: noop, emit: noop, get: get}}
 */
function hammerMock() {
  var noop = function noop() {};
  return {
    on: noop,
    off: noop,
    destroy: noop,
    emit: noop,
    get: function get() {
      return {
        set: noop
      };
    }
  };
}
var Hammer$1 = typeof window !== "undefined" ? window.Hammer || RealHammer : function () {
  // hammer.js is only available in a browser, not in node.js. Replacing it with a mock object.
  return hammerMock();
};

/**
 * Turn an element into an clickToUse element.
 * When not active, the element has a transparent overlay. When the overlay is
 * clicked, the mode is changed to active.
 * When active, the element is displayed with a blue border around it, and
 * the interactive contents of the element can be used. When clicked outside
 * the element, the elements mode is changed to inactive.
 *
 * @param {Element} container
 * @class Activator
 */
function Activator$1(container) {
  var _this = this,
    _context3;
  this._cleanupQueue = [];
  this.active = false;
  this._dom = {
    container: container,
    overlay: document.createElement("div")
  };
  this._dom.overlay.classList.add("vis-overlay");
  this._dom.container.appendChild(this._dom.overlay);
  this._cleanupQueue.push(function () {
    _this._dom.overlay.parentNode.removeChild(_this._dom.overlay);
  });
  var hammer = Hammer$1(this._dom.overlay);
  hammer.on("tap", _bindInstanceProperty$1(_context3 = this._onTapOverlay).call(_context3, this));
  this._cleanupQueue.push(function () {
    hammer.destroy();
    // FIXME: cleaning up hammer instances doesn't work (Timeline not removed
    // from memory)
  });

// block all touch events (except tap)
  var events = ["tap", "doubletap", "press", "pinch", "pan", "panstart", "panmove", "panend"];
  _forEachInstanceProperty(events).call(events, function (event) {
    hammer.on(event, function (event) {
      event.srcEvent.stopPropagation();
    });
  });

// attach a click event to the window, in order to deactivate when clicking outside the timeline
  if (document && document.body) {
    this._onClick = function (event) {
      if (!_hasParent(event.target, container)) {
        _this.deactivate();
      }
    };
    document.body.addEventListener("click", this._onClick);
    this._cleanupQueue.push(function () {
      document.body.removeEventListener("click", _this._onClick);
    });
  }

// turn into an event emitter
Emitter(Activator$1.prototype);

// The currently active activator
Activator$1.current = null;

/**
 * Destroy the activator. Cleans up all created DOM and event listeners
 */
Activator$1.prototype.destroy = function () {
  var _context4, _context5;
  this.deactivate();
  var _iterator2 = _createForOfIteratorHelper$6(_reverseInstanceProperty(_context4 = _spliceInstanceProperty(_context5 = this._cleanupQueue).call(_context5, 0)).call(_context4)),
    _step2;
  try {
    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
      var callback = _step2.value;
      callback();
    }
  } catch (err) {
    _iterator2.e(err);
  } finally {
    _iterator2.f();
  }
};

/**
 * Activate the element
 * Overlay is hidden, element is decorated with a blue shadow border
 */
Activator$1.prototype.activate = function () {
  // we allow only one active activator at a time
  if (Activator$1.current) {
    Activator$1.current.deactivate();
  }
  Activator$1.current = this;
  this.active = true;
  this._dom.overlay.style.display = "none";
  this._dom.container.classList.add("vis-active");
  this.emit("change");
  this.emit("activate");

// ugly hack: bind ESC after emitting the events, as the Network rebinds all
  // keyboard events on a 'change' event
  document.body.addEventListener("keydown", this._escListener);
};

/**
 * Deactivate the element
 * Overlay is displayed on top of the element
 */
Activator$1.prototype.deactivate = function () {
  this.active = false;
  this._dom.overlay.style.display = "block";
  this._dom.container.classList.remove("vis-active");
  document.body.removeEventListener("keydown", this._escListener);
  this.emit("change");
  this.emit("deactivate");
};

/**
 * Handle a tap event: activate the container
 *
 * @param {Event}  event   The event
 * @private
 */
Activator$1.prototype._onTapOverlay = function (event) {
  // activate the container
  this.activate();
  event.srcEvent.stopPropagation();
};

/**
 * Test whether the element has the requested parent element somewhere in
 * its chain of parent nodes.
 *
 * @param {HTMLElement} element
 * @param {HTMLElement} parent
 * @returns {boolean} Returns true when the parent is found somewhere in the
 *                    chain of parent nodes.
 * @private
 */
function _hasParent(element, parent) {
  while (element) {
    if (element === parent) {
      return true;
    }
    element = element.parentNode;
  }
  return false;
}
// Color REs
var fullHexRE = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i;
var shortHexRE = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
var rgbRE = /^rgb$ *(1?\d{1,2}|2[0-4]\d|25[0-5]) *, *(1?\d{1,2}|2[0-4]\d|25[0-5]) *, *(1?\d{1,2}|2[0-4]\d|25[0-5]) *$$/i;
var rgbaRE = /^rgba$ *(1?\d{1,2}|2[0-4]\d|25[0-5]) *, *(1?\d{1,2}|2[0-4]\d|25[0-5]) *, *(1?\d{1,2}|2[0-4]\d|25[0-5]) *, *([01]|0?\.\d+) *$$/i;
/**
 * Remove everything in the DOM object.
 *
 * @param DOMobject - Node whose child nodes will be recursively deleted.
 */
function recursiveDOMDelete(DOMobject) {
  if (DOMobject) {
    while (DOMobject.hasChildNodes() === true) {
      var child = DOMobject.firstChild;
      if (child) {
        recursiveDOMDelete(child);
        DOMobject.removeChild(child);
      }
    }
  }
}
/**
 * Test whether given object is a string.
 *
 * @param value - Input value of unknown type.
 * @returns True if string, false otherwise.
 */
function isString$1(value) {
  return value instanceof String || typeof value === "string";
}
/**
 * Test whether given object is a object (not primitive or null).
 *
 * @param value - Input value of unknown type.
 * @returns True if not null object, false otherwise.
 */
function isObject$7(value) {
  return _typeof(value) === "object" && value !== null;
}
/**
 * Copy property from b to a if property present in a.
 * If property in b explicitly set to null, delete it if `allowDeletion` set.
 *
 * Internal helper routine, should not be exported. Not added to `exports` for that reason.
 *
 * @param a - Target object.
 * @param b - Source object.
 * @param prop - Name of property to copy from b to a.
 * @param allowDeletion - If true, delete property in a if explicitly set to null in b.
 */
function copyOrDelete(a, b, prop, allowDeletion) {
  var doDeletion = false;
  if (allowDeletion === true) {
    doDeletion = b[prop] === null && a[prop] !== undefined;
  }
  if (doDeletion) {
    delete a[prop];
  } else {
    a[prop] = b[prop]; // Remember, this is a reference copy!
  }
}
/**
 * Fill an object with a possibly partially defined other object.
 *
 * Only copies values for the properties already present in a.
 * That means an object is not created on a property if only the b object has it.
 *
 * @param a - The object that will have it's properties updated.
 * @param b - The object with property updates.
 * @param allowDeletion - If true, delete properties in a that are explicitly set to null in b.
 */
function fillIfDefined(a, b) {
  var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  // NOTE: iteration of properties of a
  // NOTE: prototype properties iterated over as well
  for (var prop in a) {
    if (b[prop] !== undefined) {
      if (b[prop] === null || _typeof(b[prop]) !== "object") {
        // Note: typeof null === 'object'
        copyOrDelete(a, b, prop, allowDeletion);
      } else {
        var aProp = a[prop];
        var bProp = b[prop];
        if (isObject$7(aProp) && isObject$7(bProp)) {
          fillIfDefined(aProp, bProp, allowDeletion);
        }
      }
    }
  }
}
/**
 * Extend object a with selected properties of object b.
 * Only properties with defined values are copied.
 *
 * @remarks
 * Previous version of this routine implied that multiple source objects could
 * be used; however, the implementation was **wrong**. Since multiple (\>1)
 * sources weren't used anywhere in the `vis.js` code, this has been removed
 * @param props - Names of first-level properties to copy over.
 * @param a - Target object.
 * @param b - Source object.
 * @param allowDeletion - If true, delete property in a if explicitly set to null in b.
 * @returns Argument a.
 */
function selectiveDeepExtend(props, a, b) {
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  // TODO: add support for Arrays to deepExtend
  if (_Array$isArray(b)) {
    throw new TypeError("Arrays are not supported by deepExtend");
  }
  for (var p = 0; p < props.length; p++) {
    var prop = props[p];
    if (Object.prototype.hasOwnProperty.call(b, prop)) {
      if (b[prop] && b[prop].constructor === Object) {
        if (a[prop] === undefined) {
          a[prop] = {};
        }
        if (a[prop].constructor === Object) {
          deepExtend(a[prop], b[prop], false, allowDeletion);
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (_Array$isArray(b[prop])) {
        throw new TypeError("Arrays are not supported by deepExtend");
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
}
/**
 * Extend object `a` with properties of object `b`, ignoring properties which
 * are explicitly specified to be excluded.
 *
 * @remarks
 * The properties of `b` are considered for copying. Properties which are
 * themselves objects are are also extended. Only properties with defined
 * values are copied.
 * @param propsToExclude - Names of properties which should *not* be copied.
 * @param a - Object to extend.
 * @param b - Object to take properties from for extension.
 * @param allowDeletion - If true, delete properties in a that are explicitly
 * set to null in b.
 * @returns Argument a.
 */
function selectiveNotDeepExtend(propsToExclude, a, b) {
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  // TODO: add support for Arrays to deepExtend
  // NOTE: array properties have an else-below; apparently, there is a problem here.
  if (_Array$isArray(b)) {
    throw new TypeError("Arrays are not supported by deepExtend");
  }
  for (var prop in b) {
    if (!Object.prototype.hasOwnProperty.call(b, prop)) {
      continue;
    } // Handle local properties only
    if (_includesInstanceProperty(propsToExclude).call(propsToExclude, prop)) {
      continue;
    } // In exclusion list, skip
    if (b[prop] && b[prop].constructor === Object) {
      if (a[prop] === undefined) {
        a[prop] = {};
      }
      if (a[prop].constructor === Object) {
        deepExtend(a[prop], b[prop]); // NOTE: allowDeletion not propagated!
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    } else if (_Array$isArray(b[prop])) {
      a[prop] = [];
      for (var i = 0; i < b[prop].length; i++) {
        a[prop].push(b[prop][i]);
      }
    } else {
      copyOrDelete(a, b, prop, allowDeletion);
    }
  }
  return a;
}
/**
 * Deep extend an object a with the properties of object b.
 *
 * @param a - Target object.
 * @param b - Source object.
 * @param protoExtend - If true, the prototype values will also be extended.
 * (That is the options objects that inherit from others will also get the
 * inherited options).
 * @param allowDeletion - If true, the values of fields that are null will be deleted.
 * @returns Argument a.
 */
function deepExtend(a, b) {
  var protoExtend = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  for (var prop in b) {
    if (Object.prototype.hasOwnProperty.call(b, prop) || protoExtend === true) {
      if (_typeof(b[prop]) === "object" && b[prop] !== null && _Object$getPrototypeOf$1(b[prop]) === Object.prototype) {
        if (a[prop] === undefined) {
          a[prop] = deepExtend({}, b[prop], protoExtend); // NOTE: allowDeletion not propagated!
        } else if (_typeof(a[prop]) === "object" && a[prop] !== null && _Object$getPrototypeOf$1(a[prop]) === Object.prototype) {
          deepExtend(a[prop], b[prop], protoExtend); // NOTE: allowDeletion not propagated!
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (_Array$isArray(b[prop])) {
        var _context6;
        a[prop] = _sliceInstanceProperty(_context6 = b[prop]).call(_context6);
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
}
/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 *
 * @param arr - First part.
 * @param newValue - The value to be aadded into the array.
 * @returns A new array with all items from arr and newValue (which is last).
 */
function copyAndExtendArray(arr, newValue) {
  var _context7;
  return _concatInstanceProperty(_context7 = []).call(_context7, _toConsumableArray(arr), [newValue]);
}
/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 *
 * @param arr - The array to be copied.
 * @returns Shallow copy of arr.
 */
function copyArray(arr) {
  return _sliceInstanceProperty(arr).call(arr);
}
/**
 * Retrieve the absolute left value of a DOM element.
 *
 * @param elem - A dom element, for example a div.
 * @returns The absolute left position of this element in the browser page.
 */
function getAbsoluteLeft(elem) {
  return elem.getBoundingClientRect().left;
}
/**
 * Retrieve the absolute top value of a DOM element.
 *
 * @param elem - A dom element, for example a div.
 * @returns The absolute top position of this element in the browser page.
 */
function getAbsoluteTop(elem) {
  return elem.getBoundingClientRect().top;
}
/**
 * For each method for both arrays and objects.
 * In case of an array, the built-in Array.forEach() is applied (**No, it's not!**).
 * In case of an Object, the method loops over all properties of the object.
 *
 * @param object - An Object or Array to be iterated over.
 * @param callback - Array.forEach-like callback.
 */
function forEach$1(object, callback) {
  if (_Array$isArray(object)) {
    // array
    var len = object.length;
    for (var i = 0; i < len; i++) {
      callback(object[i], i, object);
    }
  } else {
    // object
    for (var key in object) {
      if (Object.prototype.hasOwnProperty.call(object, key)) {
        callback(object[key], key, object);
      }
    }
  }
}
/**
 * Add and event listener. Works for all browsers.
 *
 * @param element - The element to bind the event listener to.
 * @param action - Same as Element.addEventListener(action, —, —).
 * @param listener - Same as Element.addEventListener(—, listener, —).
 * @param useCapture - Same as Element.addEventListener(—, —, useCapture).
 */
function addEventListener$1(element, action, listener, useCapture) {
  if (element.addEventListener) {
    if (useCapture === undefined) {
      useCapture = false;
    }

element.addEventListener(action, listener, useCapture);
  } else {
    // @TODO: IE types? Does anyone care?
    element.attachEvent("on" + action, listener); // IE browsers
  }
}
/**
 * Remove an event listener from an element.
 *
 * @param element - The element to bind the event listener to.
 * @param action - Same as Element.removeEventListener(action, —, —).
 * @param listener - Same as Element.removeEventListener(—, listener, —).
 * @param useCapture - Same as Element.removeEventListener(—, —, useCapture).
 */
function removeEventListener$1(element, action, listener, useCapture) {
  if (element.removeEventListener) {
    // non-IE browsers
    if (useCapture === undefined) {
      useCapture = false;
    }

element.removeEventListener(action, listener, useCapture);
  } else {
    // @TODO: IE types? Does anyone care?
    element.detachEvent("on" + action, listener); // IE browsers
  }
}
/**
 * Convert hex color string into RGB color object.
 *
 * @remarks
 * {@link http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb}
 * @param hex - Hex color string (3 or 6 digits, with or without #).
 * @returns RGB color object.
 */
function hexToRGB(hex) {
  var result;
  switch (hex.length) {
    case 3:
    case 4:
      result = shortHexRE.exec(hex);
      return result ? {
        r: _parseInt(result[1] + result[1], 16),
        g: _parseInt(result[2] + result[2], 16),
        b: _parseInt(result[3] + result[3], 16)
      } : null;
    case 6:
    case 7:
      result = fullHexRE.exec(hex);
      return result ? {
        r: _parseInt(result[1], 16),
        g: _parseInt(result[2], 16),
        b: _parseInt(result[3], 16)
      } : null;
    default:
      return null;
  }
}
/**
 * This function takes string color in hex or RGB format and adds the opacity, RGBA is passed through unchanged.
 *
 * @param color - The color string (hex, RGB, RGBA).
 * @param opacity - The new opacity.
 * @returns RGBA string, for example 'rgba(255, 0, 127, 0.3)'.
 */
function overrideOpacity(color, opacity) {
  if (_includesInstanceProperty(color).call(color, "rgba")) {
    return color;
  } else if (_includesInstanceProperty(color).call(color, "rgb")) {
    var rgb = color.substr(_indexOfInstanceProperty(color).call(color, "(") + 1).replace(")", "").split(",");
    return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + opacity + ")";
  } else {
    var _rgb = hexToRGB(color);
    if (_rgb == null) {
      return color;
    } else {
      return "rgba(" + _rgb.r + "," + _rgb.g + "," + _rgb.b + "," + opacity + ")";
    }
  }
}
/**
 * Convert RGB \<0, 255\> into hex color string.
 *
 * @param red - Red channel.
 * @param green - Green channel.
 * @param blue - Blue channel.
 * @returns Hex color string (for example: '#0acdc0').
 */
function RGBToHex(red, green, blue) {
  var _context10;
  return "#" + _sliceInstanceProperty(_context10 = ((1 << 24) + (red << 16) + (green << 8) + blue).toString(16)).call(_context10, 1);
}
/**
 * Parse a color property into an object with border, background, and highlight colors.
 *
 * @param inputColor - Shorthand color string or input color object.
 * @param defaultColor - Full color object to fill in missing values in inputColor.
 * @returns Color object.
 */
function parseColor(inputColor, defaultColor) {
  if (isString$1(inputColor)) {
    var colorStr = inputColor;
    if (isValidRGB(colorStr)) {
      var _context11;
      var rgb = _mapInstanceProperty(_context11 = colorStr.substr(4).substr(0, colorStr.length - 5).split(",")).call(_context11, function (value) {
        return _parseInt(value);
      });
      colorStr = RGBToHex(rgb[0], rgb[1], rgb[2]);
    }
    if (isValidHex(colorStr) === true) {
      var hsv = hexToHSV(colorStr);
      var lighterColorHSV = {
        h: hsv.h,
        s: hsv.s * 0.8,
        v: Math.min(1, hsv.v * 1.02)
      };
      var darkerColorHSV = {
        h: hsv.h,
        s: Math.min(1, hsv.s * 1.25),
        v: hsv.v * 0.8
      };
      var darkerColorHex = HSVToHex(darkerColorHSV.h, darkerColorHSV.s, darkerColorHSV.v);
      var lighterColorHex = HSVToHex(lighterColorHSV.h, lighterColorHSV.s, lighterColorHSV.v);
      return {
        background: colorStr,
        border: darkerColorHex,
        highlight: {
          background: lighterColorHex,
          border: darkerColorHex
        },
        hover: {
          background: lighterColorHex,
          border: darkerColorHex
        }
      };
    } else {
      return {
        background: colorStr,
        border: colorStr,
        highlight: {
          background: colorStr,
          border: colorStr
        },
        hover: {
          background: colorStr,
          border: colorStr
        }
      };
    }
  } else {
    {
      var _color = {
        background: inputColor.background || undefined,
        border: inputColor.border || undefined,
        highlight: isString$1(inputColor.highlight) ? {
          border: inputColor.highlight,
          background: inputColor.highlight
        } : {
          background: inputColor.highlight && inputColor.highlight.background || undefined,
          border: inputColor.highlight && inputColor.highlight.border || undefined
        },
        hover: isString$1(inputColor.hover) ? {
          border: inputColor.hover,
          background: inputColor.hover
        } : {
          border: inputColor.hover && inputColor.hover.border || undefined,
          background: inputColor.hover && inputColor.hover.background || undefined
        }
      };
      return _color;
    }
  }
}
/**
 * Convert RGB \<0, 255\> into HSV object.
 *
 * @remarks
 * {@link http://www.javascripter.net/faq/rgb2hsv.htm}
 * @param red - Red channel.
 * @param green - Green channel.
 * @param blue - Blue channel.
 * @returns HSV color object.
 */
function RGBToHSV(red, green, blue) {
  red = red / 255;
  green = green / 255;
  blue = blue / 255;
  var minRGB = Math.min(red, Math.min(green, blue));
  var maxRGB = Math.max(red, Math.max(green, blue));
  // Black-gray-white
  if (minRGB === maxRGB) {
    return {
      h: 0,
      s: 0,
      v: minRGB
    };
  }
  // Colors other than black-gray-white:
  var d = red === minRGB ? green - blue : blue === minRGB ? red - green : blue - red;
  var h = red === minRGB ? 3 : blue === minRGB ? 1 : 5;
  var hue = 60 * (h - d / (maxRGB - minRGB)) / 360;
  var saturation = (maxRGB - minRGB) / maxRGB;
  var value = maxRGB;
  return {
    h: hue,
    s: saturation,
    v: value
  };
}
/**
 * Convert HSV \<0, 1\> into RGB color object.
 *
 * @remarks
 * {@link https://gist.github.com/mjijackson/5311256}
 * @param h - Hue.
 * @param s - Saturation.
 * @param v - Value.
 * @returns RGB color object.
 */
function HSVToRGB(h, s, v) {
  var r;
  var g;
  var b;
  var i = Math.floor(h * 6);
  var f = h * 6 - i;
  var p = v * (1 - s);
  var q = v * (1 - f * s);
  var t = v * (1 - (1 - f) * s);
  switch (i % 6) {
    case 0:
      r = v, g = t, b = p;
      break;
    case 1:
      r = q, g = v, b = p;
      break;
    case 2:
      r = p, g = v, b = t;
      break;
    case 3:
      r = p, g = q, b = v;
      break;
    case 4:
      r = t, g = p, b = v;
      break;
    case 5:
      r = v, g = p, b = q;
      break;
  }
  return {
    r: Math.floor(r * 255),
    g: Math.floor(g * 255),
    b: Math.floor(b * 255)
  };
}
/**
 * Convert HSV \<0, 1\> into hex color string.
 *
 * @param h - Hue.
 * @param s - Saturation.
 * @param v - Value.
 * @returns Hex color string.
 */
function HSVToHex(h, s, v) {
  var rgb = HSVToRGB(h, s, v);
  return RGBToHex(rgb.r, rgb.g, rgb.b);
}
/**
 * Convert hex color string into HSV \<0, 1\>.
 *
 * @param hex - Hex color string.
 * @returns HSV color object.
 */
function hexToHSV(hex) {
  var rgb = hexToRGB(hex);
  if (!rgb) {
    throw new TypeError("'".concat(hex, "' is not a valid color."));
  }
  return RGBToHSV(rgb.r, rgb.g, rgb.b);
}
/**
 * Validate hex color string.
 *
 * @param hex - Unknown string that may contain a color.
 * @returns True if the string is valid, false otherwise.
 */
function isValidHex(hex) {
  var isOk = /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(hex);
  return isOk;
}
/**
 * Validate RGB color string.
 *
 * @param rgb - Unknown string that may contain a color.
 * @returns True if the string is valid, false otherwise.
 */
function isValidRGB(rgb) {
  return rgbRE.test(rgb);
}
/**
 * Validate RGBA color string.
 *
 * @param rgba - Unknown string that may contain a color.
 * @returns True if the string is valid, false otherwise.
 */
function isValidRGBA(rgba) {
  return rgbaRE.test(rgba);
}
/**
 * This recursively redirects the prototype of JSON objects to the referenceObject.
 * This is used for default options.
 *
 * @param referenceObject - The original object.
 * @returns The Element if the referenceObject is an Element, or a new object inheriting from the referenceObject.
 */
function bridgeObject(referenceObject) {
  if (referenceObject === null || _typeof(referenceObject) !== "object") {
    return null;
  }
  if (referenceObject instanceof Element) {
    // Avoid bridging DOM objects
    return referenceObject;
  }
  var objectTo = _Object$create$1(referenceObject);
  for (var i in referenceObject) {
    if (Object.prototype.hasOwnProperty.call(referenceObject, i)) {
      if (_typeof(referenceObject[i]) == "object") {
        objectTo[i] = bridgeObject(referenceObject[i]);
      }
    }
  }
  return objectTo;
}
/**
 * This is used to set the options of subobjects in the options object.
 *
 * A requirement of these subobjects is that they have an 'enabled' element
 * which is optional for the user but mandatory for the program.
 *
 * The added value here of the merge is that option 'enabled' is set as required.
 *
 * @param mergeTarget - Either this.options or the options used for the groups.
 * @param options - Options.
 * @param option - Option key in the options argument.
 * @param globalOptions - Global options, passed in to determine value of option 'enabled'.
 */
function mergeOptions(mergeTarget, options, option) {
  var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
  // Local helpers
  var isPresent = function isPresent(obj) {
    return obj !== null && obj !== undefined;
  };
  var isObject = function isObject(obj) {
    return obj !== null && _typeof(obj) === "object";
  };
  // https://stackoverflow.com/a/34491287/1223531
  var isEmpty = function isEmpty(obj) {
    for (var x in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, x)) {
        return false;
      }
    }
    return true;
  };
  // Guards
  if (!isObject(mergeTarget)) {
    throw new Error("Parameter mergeTarget must be an object");
  }
  if (!isObject(options)) {
    throw new Error("Parameter options must be an object");
  }
  if (!isPresent(option)) {
    throw new Error("Parameter option must have a value");
  }
  if (!isObject(globalOptions)) {
    throw new Error("Parameter globalOptions must be an object");
  }
  //
  // Actual merge routine, separated from main logic
  // Only a single level of options is merged. Deeper levels are ref'd. This may actually be an issue.
  //
  var doMerge = function doMerge(target, options, option) {
    if (!isObject(target[option])) {
      target[option] = {};
    }
    var src = options[option];
    var dst = target[option];
    for (var prop in src) {
      if (Object.prototype.hasOwnProperty.call(src, prop)) {
        dst[prop] = src[prop];
      }
    }
  };
  // Local initialization
  var srcOption = options[option];
  var globalPassed = isObject(globalOptions) && !isEmpty(globalOptions);
  var globalOption = globalPassed ? globalOptions[option] : undefined;
  var globalEnabled = globalOption ? globalOption.enabled : undefined;
  /////////////////////////////////////////
  // Main routine
  /////////////////////////////////////////
  if (srcOption === undefined) {
    return; // Nothing to do
  }

if (typeof srcOption === "boolean") {
    if (!isObject(mergeTarget[option])) {
      mergeTarget[option] = {};
    }
    mergeTarget[option].enabled = srcOption;
    return;
  }
  if (srcOption === null && !isObject(mergeTarget[option])) {
    // If possible, explicit copy from globals
    if (isPresent(globalOption)) {
      mergeTarget[option] = _Object$create$1(globalOption);
    } else {
      return; // Nothing to do
    }
  }

if (!isObject(srcOption)) {
    return;
  }
  //
  // Ensure that 'enabled' is properly set. It is required internally
  // Note that the value from options will always overwrite the existing value
  //
  var enabled = true; // default value
  if (srcOption.enabled !== undefined) {
    enabled = srcOption.enabled;
  } else {
    // Take from globals, if present
    if (globalEnabled !== undefined) {
      enabled = globalOption.enabled;
    }
  }
  doMerge(mergeTarget, options, option);
  mergeTarget[option].enabled = enabled;
}
/*
 * Easing Functions.
 * Only considering the t value for the range [0, 1] => [0, 1].
 *
 * Inspiration: from http://gizma.com/easing/
 * https://gist.github.com/gre/1650294
 */
var easingFunctions = {
  /**
   * Provides no easing and no acceleration.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  linear: function linear(t) {
    return t;
  },
  /**
   * Accelerate from zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInQuad: function easeInQuad(t) {
    return t * t;
  },
  /**
   * Decelerate to zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeOutQuad: function easeOutQuad(t) {
    return t * (2 - t);
  },
  /**
   * Accelerate until halfway, then decelerate.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInOutQuad: function easeInOutQuad(t) {
    return t < 0.5 ? 2 * t * t : -1 + (4 - 2 * t) * t;
  },
  /**
   * Accelerate from zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInCubic: function easeInCubic(t) {
    return t * t * t;
  },
  /**
   * Decelerate to zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeOutCubic: function easeOutCubic(t) {
    return --t * t * t + 1;
  },
  /**
   * Accelerate until halfway, then decelerate.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInOutCubic: function easeInOutCubic(t) {
    return t < 0.5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;
  },
  /**
   * Accelerate from zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInQuart: function easeInQuart(t) {
    return t * t * t * t;
  },
  /**
   * Decelerate to zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeOutQuart: function easeOutQuart(t) {
    return 1 - --t * t * t * t;
  },
  /**
   * Accelerate until halfway, then decelerate.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInOutQuart: function easeInOutQuart(t) {
    return t < 0.5 ? 8 * t * t * t * t : 1 - 8 * --t * t * t * t;
  },
  /**
   * Accelerate from zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInQuint: function easeInQuint(t) {
    return t * t * t * t * t;
  },
  /**
   * Decelerate to zero velocity.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeOutQuint: function easeOutQuint(t) {
    return 1 + --t * t * t * t * t;
  },
  /**
   * Accelerate until halfway, then decelerate.
   *
   * @param t - Time.
   * @returns Value at time t.
   */
  easeInOutQuint: function easeInOutQuint(t) {
    return t < 0.5 ? 16 * t * t * t * t * t : 1 + 16 * --t * t * t * t * t;
  }
};
// @TODO: This doesn't work properly.
// It works only for single property objects,
// otherwise it combines all of the types in a union.
// export function topMost<K1 extends string, V1> (
//   pile: Record<K1, undefined | V1>[],
//   accessors: K1 | [K1]
// ): undefined | V1
// export function topMost<K1 extends string, K2 extends string, V1, V2> (
//   pile: Record<K1, undefined | V1 | Record<K2, undefined | V2>>[],
//   accessors: [K1, K2]
// ): undefined | V1 | V2
// export function topMost<K1 extends string, K2 extends string, K3 extends string, V1, V2, V3> (
//   pile: Record<K1, undefined | V1 | Record<K2, undefined | V2 | Record<K3, undefined | V3>>>[],
//   accessors: [K1, K2, K3]
// ): undefined | V1 | V2 | V3
/**
 * Get the top most property value from a pile of objects.
 *
 * @param pile - Array of objects, no required format.
 * @param accessors - Array of property names.
 * For example `object['foo']['bar']` → `['foo', 'bar']`.
 * @returns Value of the property with given accessors path from the first pile item where it's not undefined.
 */
function topMost(pile, accessors) {
  var candidate;
  if (!_Array$isArray(accessors)) {
    accessors = [accessors];
  }
  var _iterator3 = _createForOfIteratorHelper$6(pile),
    _step3;
  try {
    for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
      var member = _step3.value;
      if (member) {
        candidate = member[accessors[0]];
        for (var i = 1; i < accessors.length; i++) {
          if (candidate) {
            candidate = candidate[accessors[i]];
          }
        }
        if (typeof candidate !== "undefined") {
          break;
        }
      }
    }
  } catch (err) {
    _iterator3.e(err);
  } finally {
    _iterator3.f();
  }
  return candidate;
}
var htmlColors = {
  black: "#000000",
  navy: "#000080",
  darkblue: "#00008B",
  mediumblue: "#0000CD",
  blue: "#0000FF",
  darkgreen: "#006400",
  green: "#008000",
  teal: "#008080",
  darkcyan: "#008B8B",
  deepskyblue: "#00BFFF",
  darkturquoise: "#00CED1",
  mediumspringgreen: "#00FA9A",
  lime: "#00FF00",
  springgreen: "#00FF7F",
  aqua: "#00FFFF",
  cyan: "#00FFFF",
  midnightblue: "#191970",
  dodgerblue: "#1E90FF",
  lightseagreen: "#20B2AA",
  forestgreen: "#228B22",
  seagreen: "#2E8B57",
  darkslategray: "#2F4F4F",
  limegreen: "#32CD32",
  mediumseagreen: "#3CB371",
  turquoise: "#40E0D0",
  royalblue: "#4169E1",
  steelblue: "#4682B4",
  darkslateblue: "#483D8B",
  mediumturquoise: "#48D1CC",
  indigo: "#4B0082",
  darkolivegreen: "#556B2F",
  cadetblue: "#5F9EA0",
  cornflowerblue: "#6495ED",
  mediumaquamarine: "#66CDAA",
  dimgray: "#696969",
  slateblue: "#6A5ACD",
  olivedrab: "#6B8E23",
  slategray: "#708090",
  lightslategray: "#778899",
  mediumslateblue: "#7B68EE",
  lawngreen: "#7CFC00",
  chartreuse: "#7FFF00",
  aquamarine: "#7FFFD4",
  maroon: "#800000",
  purple: "#800080",
  olive: "#808000",
  gray: "#808080",
  skyblue: "#87CEEB",
  lightskyblue: "#87CEFA",
  blueviolet: "#8A2BE2",
  darkred: "#8B0000",
  darkmagenta: "#8B008B",
  saddlebrown: "#8B4513",
  darkseagreen: "#8FBC8F",
  lightgreen: "#90EE90",
  mediumpurple: "#9370D8",
  darkviolet: "#9400D3",
  palegreen: "#98FB98",
  darkorchid: "#9932CC",
  yellowgreen: "#9ACD32",
  sienna: "#A0522D",
  brown: "#A52A2A",
  darkgray: "#A9A9A9",
  lightblue: "#ADD8E6",
  greenyellow: "#ADFF2F",
  paleturquoise: "#AFEEEE",
  lightsteelblue: "#B0C4DE",
  powderblue: "#B0E0E6",
  firebrick: "#B22222",
  darkgoldenrod: "#B8860B",
  mediumorchid: "#BA55D3",
  rosybrown: "#BC8F8F",
  darkkhaki: "#BDB76B",
  silver: "#C0C0C0",
  mediumvioletred: "#C71585",
  indianred: "#CD5C5C",
  peru: "#CD853F",
  chocolate: "#D2691E",
  tan: "#D2B48C",
  lightgrey: "#D3D3D3",
  palevioletred: "#D87093",
  thistle: "#D8BFD8",
  orchid: "#DA70D6",
  goldenrod: "#DAA520",
  crimson: "#DC143C",
  gainsboro: "#DCDCDC",
  plum: "#DDA0DD",
  burlywood: "#DEB887",
  lightcyan: "#E0FFFF",
  lavender: "#E6E6FA",
  darksalmon: "#E9967A",
  violet: "#EE82EE",
  palegoldenrod: "#EEE8AA",
  lightcoral: "#F08080",
  khaki: "#F0E68C",
  aliceblue: "#F0F8FF",
  honeydew: "#F0FFF0",
  azure: "#F0FFFF",
  sandybrown: "#F4A460",
  wheat: "#F5DEB3",
  beige: "#F5F5DC",
  whitesmoke: "#F5F5F5",
  mintcream: "#F5FFFA",
  ghostwhite: "#F8F8FF",
  salmon: "#FA8072",
  antiquewhite: "#FAEBD7",
  linen: "#FAF0E6",
  lightgoldenrodyellow: "#FAFAD2",
  oldlace: "#FDF5E6",
  red: "#FF0000",
  fuchsia: "#FF00FF",
  magenta: "#FF00FF",
  deeppink: "#FF1493",
  orangered: "#FF4500",
  tomato: "#FF6347",
  hotpink: "#FF69B4",
  coral: "#FF7F50",
  darkorange: "#FF8C00",
  lightsalmon: "#FFA07A",
  orange: "#FFA500",
  lightpink: "#FFB6C1",
  pink: "#FFC0CB",
  gold: "#FFD700",
  peachpuff: "#FFDAB9",
  navajowhite: "#FFDEAD",
  moccasin: "#FFE4B5",
  bisque: "#FFE4C4",
  mistyrose: "#FFE4E1",
  blanchedalmond: "#FFEBCD",
  papayawhip: "#FFEFD5",
  lavenderblush: "#FFF0F5",
  seashell: "#FFF5EE",
  cornsilk: "#FFF8DC",
  lemonchiffon: "#FFFACD",
  floralwhite: "#FFFAF0",
  snow: "#FFFAFA",
  yellow: "#FFFF00",
  lightyellow: "#FFFFE0",
  ivory: "#FFFFF0",
  white: "#FFFFFF"
};

/**
 * @param {number} [pixelRatio=1]
 */
var ColorPicker$1 = /*#__PURE__*/function () {
  /**
   * @param {number} [pixelRatio=1]
   */
  function ColorPicker$1() {
    var pixelRatio = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
    _classCallCheck(this, ColorPicker$1);
    this.pixelRatio = pixelRatio;
    this.generated = false;
    this.centerCoordinates = {
      x: 289 / 2,
      y: 289 / 2
    };
    this.r = 289 * 0.49;
    this.color = {
      r: 255,
      g: 255,
      b: 255,
      a: 1.0
    };
    this.hueCircle = undefined;
    this.initialColor = {
      r: 255,
      g: 255,
      b: 255,
      a: 1.0
    };
    this.previousColor = undefined;
    this.applied = false;

// bound by
    this.updateCallback = function () {};
    this.closeCallback = function () {};

// create all DOM elements
    this._create();
  }

/**
   * this inserts the colorPicker into a div from the DOM
   *
   * @param {Element} container
   */
  _createClass(ColorPicker$1, [{
    key: "insertTo",
    value: function insertTo(container) {
      if (this.hammer !== undefined) {
        this.hammer.destroy();
        this.hammer = undefined;
      }
      this.container = container;
      this.container.appendChild(this.frame);
      this._bindHammer();
      this._setSize();
    }

/**
     * the callback is executed on apply and save. Bind it to the application
     *
     * @param {Function} callback
     */
  }, {
    key: "setUpdateCallback",
    value: function setUpdateCallback(callback) {
      if (typeof callback === "function") {
        this.updateCallback = callback;
      } else {
        throw new Error("Function attempted to set as colorPicker update callback is not a function.");
      }
    }

/**
     * the callback is executed on apply and save. Bind it to the application
     *
     * @param {Function} callback
     */
  }, {
    key: "setCloseCallback",
    value: function setCloseCallback(callback) {
      if (typeof callback === "function") {
        this.closeCallback = callback;
      } else {
        throw new Error("Function attempted to set as colorPicker closing callback is not a function.");
      }
    }

/**
     *
     * @param {string} color
     * @returns {string}
     * @private
     */
  }, {
    key: "_isColorString",
    value: function _isColorString(color) {
      if (typeof color === "string") {
        return htmlColors[color];
      }
    }

/**
     * Set the color of the colorPicker
     * Supported formats:
     * 'red'                   --> HTML color string
     * '#ffffff'               --> hex string
     * 'rgb(255,255,255)'      --> rgb string
     * 'rgba(255,255,255,1.0)' --> rgba string
     * {r:255,g:255,b:255}     --> rgb object
     * {r:255,g:255,b:255,a:1.0} --> rgba object
     *
     * @param {string | object} color
     * @param {boolean} [setInitial=true]
     */
  }, {
    key: "setColor",
    value: function setColor(color) {
      var setInitial = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      if (color === "none") {
        return;
      }
      var rgba;

// if a html color shorthand is used, convert to hex
      var htmlColor = this._isColorString(color);
      if (htmlColor !== undefined) {
        color = htmlColor;
      }

// check format
      if (isString$1(color) === true) {
        if (isValidRGB(color) === true) {
          var rgbaArray = color.substr(4).substr(0, color.length - 5).split(",");
          rgba = {
            r: rgbaArray[0],
            g: rgbaArray[1],
            b: rgbaArray[2],
            a: 1.0
          };
        } else if (isValidRGBA(color) === true) {
          var _rgbaArray = color.substr(5).substr(0, color.length - 6).split(",");
          rgba = {
            r: _rgbaArray[0],
            g: _rgbaArray[1],
            b: _rgbaArray[2],
            a: _rgbaArray[3]
          };
        } else if (isValidHex(color) === true) {
          var rgbObj = hexToRGB(color);
          rgba = {
            r: rgbObj.r,
            g: rgbObj.g,
            b: rgbObj.b,
            a: 1.0
          };
        }
      } else {
        if (color instanceof Object) {
          if (color.r !== undefined && color.g !== undefined && color.b !== undefined) {
            var alpha = color.a !== undefined ? color.a : "1.0";
            rgba = {
              r: color.r,
              g: color.g,
              b: color.b,
              a: alpha
            };
          }
        }
      }

// set color
      if (rgba === undefined) {
        throw new Error("Unknown color passed to the colorPicker. Supported are strings: rgb, hex, rgba. Object: rgb ({r:r,g:g,b:b,[a:a]}). Supplied: " + _JSON$stringify(color));
      } else {
        this._setColor(rgba, setInitial);
      }
    }

/**
     * this shows the color picker.
     * The hue circle is constructed once and stored.
     */
  }, {
    key: "show",
    value: function show() {
      if (this.closeCallback !== undefined) {
        this.closeCallback();
        this.closeCallback = undefined;
      }
      this.applied = false;
      this.frame.style.display = "block";
      this._generateHueCircle();
    }

// ------------------------------------------ PRIVATE ----------------------------- //

/**
     * Hide the picker. Is called by the cancel button.
     * Optional boolean to store the previous color for easy access later on.
     *
     * @param {boolean} [storePrevious=true]
     * @private
     */
  }, {
    key: "_hide",
    value: function _hide() {
      var _this2 = this;
      var storePrevious = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
      // store the previous color for next time;
      if (storePrevious === true) {
        this.previousColor = _Object$assign({}, this.color);
      }
      if (this.applied === true) {
        this.updateCallback(this.initialColor);
      }
      this.frame.style.display = "none";

// call the closing callback, restoring the onclick method.
      // this is in a setTimeout because it will trigger the show again before the click is done.
      _setTimeout(function () {
        if (_this2.closeCallback !== undefined) {
          _this2.closeCallback();
          _this2.closeCallback = undefined;
        }
      }, 0);
    }

/**
     * bound to the save button. Saves and hides.
     *
     * @private
     */
  }, {
    key: "_save",
    value: function _save() {
      this.updateCallback(this.color);
      this.applied = false;
      this._hide();
    }

/**
     * Bound to apply button. Saves but does not close. Is undone by the cancel button.
     *
     * @private
     */
  }, {
    key: "_apply",
    value: function _apply() {
      this.applied = true;
      this.updateCallback(this.color);
      this._updatePicker(this.color);
    }

/**
     * load the color from the previous session.
     *
     * @private
     */
  }, {
    key: "_loadLast",
    value: function _loadLast() {
      if (this.previousColor !== undefined) {
        this.setColor(this.previousColor, false);
      } else {
        alert("There is no last color to load...");
      }
    }

/**
     * set the color, place the picker
     *
     * @param {object} rgba
     * @param {boolean} [setInitial=true]
     * @private
     */
  }, {
    key: "_setColor",
    value: function _setColor(rgba) {
      var setInitial = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      // store the initial color
      if (setInitial === true) {
        this.initialColor = _Object$assign({}, rgba);
      }
      this.color = rgba;
      var hsv = RGBToHSV(rgba.r, rgba.g, rgba.b);
      var angleConvert = 2 * Math.PI;
      var radius = this.r * hsv.s;
      var x = this.centerCoordinates.x + radius * Math.sin(angleConvert * hsv.h);
      var y = this.centerCoordinates.y + radius * Math.cos(angleConvert * hsv.h);
      this.colorPickerSelector.style.left = x - 0.5 * this.colorPickerSelector.clientWidth + "px";
      this.colorPickerSelector.style.top = y - 0.5 * this.colorPickerSelector.clientHeight + "px";
      this._updatePicker(rgba);
    }

/**
     * bound to opacity control
     *
     * @param {number} value
     * @private
     */
  }, {
    key: "_setOpacity",
    value: function _setOpacity(value) {
      this.color.a = value / 100;
      this._updatePicker(this.color);
    }

/**
     * bound to brightness control
     *
     * @param {number} value
     * @private
     */
  }, {
    key: "_setBrightness",
    value: function _setBrightness(value) {
      var hsv = RGBToHSV(this.color.r, this.color.g, this.color.b);
      hsv.v = value / 100;
      var rgba = HSVToRGB(hsv.h, hsv.s, hsv.v);
      rgba["a"] = this.color.a;
      this.color = rgba;
      this._updatePicker();
    }

/**
     * update the color picker. A black circle overlays the hue circle to mimic the brightness decreasing.
     *
     * @param {object} rgba
     * @private
     */
  }, {
    key: "_updatePicker",
    value: function _updatePicker() {
      var rgba = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.color;
      var hsv = RGBToHSV(rgba.r, rgba.g, rgba.b);
      var ctx = this.colorPickerCanvas.getContext("2d");
      if (this.pixelRation === undefined) {
        this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);
      }
      ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);

// clear the canvas
      var w = this.colorPickerCanvas.clientWidth;
      var h = this.colorPickerCanvas.clientHeight;
      ctx.clearRect(0, 0, w, h);
      ctx.putImageData(this.hueCircle, 0, 0);
      ctx.fillStyle = "rgba(0,0,0," + (1 - hsv.v) + ")";
      ctx.circle(this.centerCoordinates.x, this.centerCoordinates.y, this.r);
      _fillInstanceProperty(ctx).call(ctx);
      this.brightnessRange.value = 100 * hsv.v;
      this.opacityRange.value = 100 * rgba.a;
      this.initialColorDiv.style.backgroundColor = "rgba(" + this.initialColor.r + "," + this.initialColor.g + "," + this.initialColor.b + "," + this.initialColor.a + ")";
      this.newColorDiv.style.backgroundColor = "rgba(" + this.color.r + "," + this.color.g + "," + this.color.b + "," + this.color.a + ")";
    }

/**
     * used by create to set the size of the canvas.
     *
     * @private
     */
  }, {
    key: "_setSize",
    value: function _setSize() {
      this.colorPickerCanvas.style.width = "100%";
      this.colorPickerCanvas.style.height = "100%";
      this.colorPickerCanvas.width = 289 * this.pixelRatio;
      this.colorPickerCanvas.height = 289 * this.pixelRatio;
    }

/**
     * create all dom elements
     * TODO: cleanup, lots of similar dom elements
     *
     * @private
     */
  }, {
    key: "_create",
    value: function _create() {
      var _context16, _context17, _context18, _context19;
      this.frame = document.createElement("div");
      this.frame.className = "vis-color-picker";
      this.colorPickerDiv = document.createElement("div");
      this.colorPickerSelector = document.createElement("div");
      this.colorPickerSelector.className = "vis-selector";
      this.colorPickerDiv.appendChild(this.colorPickerSelector);
      this.colorPickerCanvas = document.createElement("canvas");
      this.colorPickerDiv.appendChild(this.colorPickerCanvas);
      if (!this.colorPickerCanvas.getContext) {
        var noCanvas = document.createElement("DIV");
        noCanvas.style.color = "red";
        noCanvas.style.fontWeight = "bold";
        noCanvas.style.padding = "10px";
        noCanvas.innerText = "Error: your browser does not support HTML canvas";
        this.colorPickerCanvas.appendChild(noCanvas);
      } else {
        var ctx = this.colorPickerCanvas.getContext("2d");
        this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);
        this.colorPickerCanvas.getContext("2d").setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);
      }
      this.colorPickerDiv.className = "vis-color";
      this.opacityDiv = document.createElement("div");
      this.opacityDiv.className = "vis-opacity";
      this.brightnessDiv = document.createElement("div");
      this.brightnessDiv.className = "vis-brightness";
      this.arrowDiv = document.createElement("div");
      this.arrowDiv.className = "vis-arrow";
      this.opacityRange = document.createElement("input");
      try {
        this.opacityRange.type = "range"; // Not supported on IE9
        this.opacityRange.min = "0";
        this.opacityRange.max = "100";
      } catch (err) {
        // TODO: Add some error handling.
      }
      this.opacityRange.value = "100";
      this.opacityRange.className = "vis-range";
      this.brightnessRange = document.createElement("input");
      try {
        this.brightnessRange.type = "range"; // Not supported on IE9
        this.brightnessRange.min = "0";
        this.brightnessRange.max = "100";
      } catch (err) {
        // TODO: Add some error handling.
      }
      this.brightnessRange.value = "100";
      this.brightnessRange.className = "vis-range";
      this.opacityDiv.appendChild(this.opacityRange);
      this.brightnessDiv.appendChild(this.brightnessRange);
      var me = this;
      this.opacityRange.onchange = function () {
        me._setOpacity(this.value);
      };
      this.opacityRange.oninput = function () {
        me._setOpacity(this.value);
      };
      this.brightnessRange.onchange = function () {
        me._setBrightness(this.value);
      };
      this.brightnessRange.oninput = function () {
        me._setBrightness(this.value);
      };
      this.brightnessLabel = document.createElement("div");
      this.brightnessLabel.className = "vis-label vis-brightness";
      this.brightnessLabel.innerText = "brightness:";
      this.opacityLabel = document.createElement("div");
      this.opacityLabel.className = "vis-label vis-opacity";
      this.opacityLabel.innerText = "opacity:";
      this.newColorDiv = document.createElement("div");
      this.newColorDiv.className = "vis-new-color";
      this.newColorDiv.innerText = "new";
      this.initialColorDiv = document.createElement("div");
      this.initialColorDiv.className = "vis-initial-color";
      this.initialColorDiv.innerText = "initial";
      this.cancelButton = document.createElement("div");
      this.cancelButton.className = "vis-button vis-cancel";
      this.cancelButton.innerText = "cancel";
      this.cancelButton.onclick = _bindInstanceProperty$1(_context16 = this._hide).call(_context16, this, false);
      this.applyButton = document.createElement("div");
      this.applyButton.className = "vis-button vis-apply";
      this.applyButton.innerText = "apply";
      this.applyButton.onclick = _bindInstanceProperty$1(_context17 = this._apply).call(_context17, this);
      this.saveButton = document.createElement("div");
      this.saveButton.className = "vis-button vis-save";
      this.saveButton.innerText = "save";
      this.saveButton.onclick = _bindInstanceProperty$1(_context18 = this._save).call(_context18, this);
      this.loadButton = document.createElement("div");
      this.loadButton.className = "vis-button vis-load";
      this.loadButton.innerText = "load last";
      this.loadButton.onclick = _bindInstanceProperty$1(_context19 = this._loadLast).call(_context19, this);
      this.frame.appendChild(this.colorPickerDiv);
      this.frame.appendChild(this.arrowDiv);
      this.frame.appendChild(this.brightnessLabel);
      this.frame.appendChild(this.brightnessDiv);
      this.frame.appendChild(this.opacityLabel);
      this.frame.appendChild(this.opacityDiv);
      this.frame.appendChild(this.newColorDiv);
      this.frame.appendChild(this.initialColorDiv);
      this.frame.appendChild(this.cancelButton);
      this.frame.appendChild(this.applyButton);
      this.frame.appendChild(this.saveButton);
      this.frame.appendChild(this.loadButton);
    }

/**
     * bind hammer to the color picker
     *
     * @private
     */
  }, {
    key: "_bindHammer",
    value: function _bindHammer() {
      var _this3 = this;
      this.drag = {};
      this.pinch = {};
      this.hammer = new Hammer$1(this.colorPickerCanvas);
      this.hammer.get("pinch").set({
        enable: true
      });
      this.hammer.on("hammer.input", function (event) {
        if (event.isFirst) {
          _this3._moveSelector(event);
        }
      });
      this.hammer.on("tap", function (event) {
        _this3._moveSelector(event);
      });
      this.hammer.on("panstart", function (event) {
        _this3._moveSelector(event);
      });
      this.hammer.on("panmove", function (event) {
        _this3._moveSelector(event);
      });
      this.hammer.on("panend", function (event) {
        _this3._moveSelector(event);
      });
    }

/**
     * generate the hue circle. This is relatively heavy (200ms) and is done only once on the first time it is shown.
     *
     * @private
     */
  }, {
    key: "_generateHueCircle",
    value: function _generateHueCircle() {
      if (this.generated === false) {
        var ctx = this.colorPickerCanvas.getContext("2d");
        if (this.pixelRation === undefined) {
          this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);
        }
        ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);

// clear the canvas
        var w = this.colorPickerCanvas.clientWidth;
        var h = this.colorPickerCanvas.clientHeight;
        ctx.clearRect(0, 0, w, h);

// draw hue circle
        var x, y, hue, sat;
        this.centerCoordinates = {
          x: w * 0.5,
          y: h * 0.5
        };
        this.r = 0.49 * w;
        var angleConvert = 2 * Math.PI / 360;
        var hfac = 1 / 360;
        var sfac = 1 / this.r;
        var rgb;
        for (hue = 0; hue < 360; hue++) {
          for (sat = 0; sat < this.r; sat++) {
            x = this.centerCoordinates.x + sat * Math.sin(angleConvert * hue);
            y = this.centerCoordinates.y + sat * Math.cos(angleConvert * hue);
            rgb = HSVToRGB(hue * hfac, sat * sfac, 1);
            ctx.fillStyle = "rgb(" + rgb.r + "," + rgb.g + "," + rgb.b + ")";
            ctx.fillRect(x - 0.5, y - 0.5, 2, 2);
          }
        }
        ctx.strokeStyle = "rgba(0,0,0,1)";
        ctx.circle(this.centerCoordinates.x, this.centerCoordinates.y, this.r);
        ctx.stroke();
        this.hueCircle = ctx.getImageData(0, 0, w, h);
      }
      this.generated = true;
    }

/**
     * move the selector. This is called by hammer functions.
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "_moveSelector",
    value: function _moveSelector(event) {
      var rect = this.colorPickerDiv.getBoundingClientRect();
      var left = event.center.x - rect.left;
      var top = event.center.y - rect.top;
      var centerY = 0.5 * this.colorPickerDiv.clientHeight;
      var centerX = 0.5 * this.colorPickerDiv.clientWidth;
      var x = left - centerX;
      var y = top - centerY;
      var angle = Math.atan2(x, y);
      var radius = 0.98 * Math.min(Math.sqrt(x * x + y * y), centerX);
      var newTop = Math.cos(angle) * radius + centerY;
      var newLeft = Math.sin(angle) * radius + centerX;
      this.colorPickerSelector.style.top = newTop - 0.5 * this.colorPickerSelector.clientHeight + "px";
      this.colorPickerSelector.style.left = newLeft - 0.5 * this.colorPickerSelector.clientWidth + "px";

// set color
      var h = angle / (2 * Math.PI);
      h = h < 0 ? h + 1 : h;
      var s = radius / this.r;
      var hsv = RGBToHSV(this.color.r, this.color.g, this.color.b);
      hsv.h = h;
      hsv.s = s;
      var rgba = HSVToRGB(hsv.h, hsv.s, hsv.v);
      rgba["a"] = this.color.a;
      this.color = rgba;

// update previews
      this.initialColorDiv.style.backgroundColor = "rgba(" + this.initialColor.r + "," + this.initialColor.g + "," + this.initialColor.b + "," + this.initialColor.a + ")";
      this.newColorDiv.style.backgroundColor = "rgba(" + this.color.r + "," + this.color.g + "," + this.color.b + "," + this.color.a + ")";
    }
  }]);
  return ColorPicker$1;
}();
/**
 * Wrap given text (last argument) in HTML elements (all preceding arguments).
 *
 * @param {...any} rest - List of tag names followed by inner text.
 * @returns An element or a text node.
 */
function wrapInTag() {
  for (var _len5 = arguments.length, rest = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
    rest[_key5] = arguments[_key5];
  }
  if (rest.length < 1) {
    throw new TypeError("Invalid arguments.");
  } else if (rest.length === 1) {
    return document.createTextNode(rest[0]);
  } else {
    var element = document.createElement(rest[0]);
    element.appendChild(wrapInTag.apply(void 0, _toConsumableArray(_sliceInstanceProperty(rest).call(rest, 1))));
    return element;
  }
}

/**
 * The way this works is for all properties of this.possible options, you can supply the property name in any form to list the options.
 * Boolean options are recognised as Boolean
 * Number options should be written as array: [default value, min value, max value, stepsize]
 * Colors should be written as array: ['color', '#ffffff']
 * Strings with should be written as array: [option1, option2, option3, ..]
 *
 * The options are matched with their counterparts in each of the modules and the values used in the configuration are
 */
var Configurator$1 = /*#__PURE__*/function () {
  /**
   * @param {object} parentModule        | the location where parentModule.setOptions() can be called
   * @param {object} defaultContainer    | the default container of the module
   * @param {object} configureOptions    | the fully configured and predefined options set found in allOptions.js
   * @param {number} pixelRatio          | canvas pixel ratio
   * @param {Function} hideOption        | custom logic to dynamically hide options
   */
  function Configurator$1(parentModule, defaultContainer, configureOptions) {
    var pixelRatio = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 1;
    var hideOption = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : function () {
      return false;
    };
    _classCallCheck(this, Configurator$1);
    this.parent = parentModule;
    this.changedOptions = [];
    this.container = defaultContainer;
    this.allowCreation = false;
    this.hideOption = hideOption;
    this.options = {};
    this.initialized = false;
    this.popupCounter = 0;
    this.defaultOptions = {
      enabled: false,
      filter: true,
      container: undefined,
      showButton: true
    };
    _Object$assign(this.options, this.defaultOptions);
    this.configureOptions = configureOptions;
    this.moduleOptions = {};
    this.domElements = [];
    this.popupDiv = {};
    this.popupLimit = 5;
    this.popupHistory = {};
    this.colorPicker = new ColorPicker$1(pixelRatio);
    this.wrapper = undefined;
  }

/**
   * refresh all options.
   * Because all modules parse their options by themselves, we just use their options. We copy them here.
   *
   * @param {object} options
   */
  _createClass(Configurator$1, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        // reset the popup history because the indices may have been changed.
        this.popupHistory = {};
        this._removePopup();
        var enabled = true;
        if (typeof options === "string") {
          this.options.filter = options;
        } else if (_Array$isArray(options)) {
          this.options.filter = options.join();
        } else if (_typeof(options) === "object") {
          if (options == null) {
            throw new TypeError("options cannot be null");
          }
          if (options.container !== undefined) {
            this.options.container = options.container;
          }
          if (_filterInstanceProperty(options) !== undefined) {
            this.options.filter = _filterInstanceProperty(options);
          }
          if (options.showButton !== undefined) {
            this.options.showButton = options.showButton;
          }
          if (options.enabled !== undefined) {
            enabled = options.enabled;
          }
        } else if (typeof options === "boolean") {
          this.options.filter = true;
          enabled = options;
        } else if (typeof options === "function") {
          this.options.filter = options;
          enabled = true;
        }
        if (_filterInstanceProperty(this.options) === false) {
          enabled = false;
        }
        this.options.enabled = enabled;
      }
      this._clean();
    }

/**
     *
     * @param {object} moduleOptions
     */
  }, {
    key: "setModuleOptions",
    value: function setModuleOptions(moduleOptions) {
      this.moduleOptions = moduleOptions;
      if (this.options.enabled === true) {
        this._clean();
        if (this.options.container !== undefined) {
          this.container = this.options.container;
        }
        this._create();
      }
    }

/**
     * Create all DOM elements
     *
     * @private
     */
  }, {
    key: "_create",
    value: function _create() {
      this._clean();
      this.changedOptions = [];
      var filter = _filterInstanceProperty(this.options);
      var counter = 0;
      var show = false;
      for (var _option in this.configureOptions) {
        if (Object.prototype.hasOwnProperty.call(this.configureOptions, _option)) {
          this.allowCreation = false;
          show = false;
          if (typeof filter === "function") {
            show = filter(_option, []);
            show = show || this._handleObject(this.configureOptions[_option], [_option], true);
          } else if (filter === true || _indexOfInstanceProperty(filter).call(filter, _option) !== -1) {
            show = true;
          }
          if (show !== false) {
            this.allowCreation = true;

// linebreak between categories
            if (counter > 0) {
              this._makeItem([]);
            }
            // a header for the category
            this._makeHeader(_option);

// get the sub options
            this._handleObject(this.configureOptions[_option], [_option]);
          }
          counter++;
        }
      }
      this._makeButton();
      this._push();
      //~ this.colorPicker.insertTo(this.container);
    }

/**
     * draw all DOM elements on the screen
     *
     * @private
     */
  }, {
    key: "_push",
    value: function _push() {
      this.wrapper = document.createElement("div");
      this.wrapper.className = "vis-configuration-wrapper";
      this.container.appendChild(this.wrapper);
      for (var i = 0; i < this.domElements.length; i++) {
        this.wrapper.appendChild(this.domElements[i]);
      }
      this._showPopupIfNeeded();
    }

/**
     * delete all DOM elements
     *
     * @private
     */
  }, {
    key: "_clean",
    value: function _clean() {
      for (var i = 0; i < this.domElements.length; i++) {
        this.wrapper.removeChild(this.domElements[i]);
      }
      if (this.wrapper !== undefined) {
        this.container.removeChild(this.wrapper);
        this.wrapper = undefined;
      }
      this.domElements = [];
      this._removePopup();
    }

/**
     * get the value from the actualOptions if it exists
     *
     * @param {Array} path    | where to look for the actual option
     * @returns {*}
     * @private
     */
  }, {
    key: "_getValue",
    value: function _getValue(path) {
      var base = this.moduleOptions;
      for (var i = 0; i < path.length; i++) {
        if (base[path[i]] !== undefined) {
          base = base[path[i]];
        } else {
          base = undefined;
          break;
        }
      }
      return base;
    }

/**
     * all option elements are wrapped in an item
     *
     * @param {Array} path    | where to look for the actual option
     * @param {Array.<Element>} domElements
     * @returns {number}
     * @private
     */
  }, {
    key: "_makeItem",
    value: function _makeItem(path) {
      if (this.allowCreation === true) {
        var item = document.createElement("div");
        item.className = "vis-configuration vis-config-item vis-config-s" + path.length;
        for (var _len6 = arguments.length, domElements = new Array(_len6 > 1 ? _len6 - 1 : 0), _key6 = 1; _key6 < _len6; _key6++) {
          domElements[_key6 - 1] = arguments[_key6];
        }
        _forEachInstanceProperty(domElements).call(domElements, function (element) {
          item.appendChild(element);
        });
        this.domElements.push(item);
        return this.domElements.length;
      }
      return 0;
    }

/**
     * header for major subjects
     *
     * @param {string} name
     * @private
     */
  }, {
    key: "_makeHeader",
    value: function _makeHeader(name) {
      var div = document.createElement("div");
      div.className = "vis-configuration vis-config-header";
      div.innerText = name;
      this._makeItem([], div);
    }

/**
     * make a label, if it is an object label, it gets different styling.
     *
     * @param {string} name
     * @param {Array} path    | where to look for the actual option
     * @param {string} objectLabel
     * @returns {HTMLElement}
     * @private
     */
  }, {
    key: "_makeLabel",
    value: function _makeLabel(name, path) {
      var objectLabel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var div = document.createElement("div");
      div.className = "vis-configuration vis-config-label vis-config-s" + path.length;
      if (objectLabel === true) {
        while (div.firstChild) {
          div.removeChild(div.firstChild);
        }
        div.appendChild(wrapInTag("i", "b", name));
      } else {
        div.innerText = name + ":";
      }
      return div;
    }

/**
     * make a dropdown list for multiple possible string optoins
     *
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_makeDropdown",
    value: function _makeDropdown(arr, value, path) {
      var select = document.createElement("select");
      select.className = "vis-configuration vis-config-select";
      var selectedValue = 0;
      if (value !== undefined) {
        if (_indexOfInstanceProperty(arr).call(arr, value) !== -1) {
          selectedValue = _indexOfInstanceProperty(arr).call(arr, value);
        }
      }
      for (var i = 0; i < arr.length; i++) {
        var _option2 = document.createElement("option");
        _option2.value = arr[i];
        if (i === selectedValue) {
          _option2.selected = "selected";
        }
        _option2.innerText = arr[i];
        select.appendChild(_option2);
      }
      var me = this;
      select.onchange = function () {
        me._update(this.value, path);
      };
      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, select);
    }

/**
     * make a range object for numeric options
     *
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_makeRange",
    value: function _makeRange(arr, value, path) {
      var defaultValue = arr[0];
      var min = arr[1];
      var max = arr[2];
      var step = arr[3];
      var range = document.createElement("input");
      range.className = "vis-configuration vis-config-range";
      try {
        range.type = "range"; // not supported on IE9
        range.min = min;
        range.max = max;
      } catch (err) {
        // TODO: Add some error handling.
      }
      range.step = step;

// set up the popup settings in case they are needed.
      var popupString = "";
      var popupValue = 0;
      if (value !== undefined) {
        var factor = 1.2;
        if (value < 0 && value * factor < min) {
          range.min = Math.ceil(value * factor);
          popupValue = range.min;
          popupString = "range increased";
        } else if (value / factor < min) {
          range.min = Math.ceil(value / factor);
          popupValue = range.min;
          popupString = "range increased";
        }
        if (value * factor > max && max !== 1) {
          range.max = Math.ceil(value * factor);
          popupValue = range.max;
          popupString = "range increased";
        }
        range.value = value;
      } else {
        range.value = defaultValue;
      }
      var input = document.createElement("input");
      input.className = "vis-configuration vis-config-rangeinput";
      input.value = range.value;
      var me = this;
      range.onchange = function () {
        input.value = this.value;
        me._update(Number(this.value), path);
      };
      range.oninput = function () {
        input.value = this.value;
      };
      var label = this._makeLabel(path[path.length - 1], path);
      var itemIndex = this._makeItem(path, label, range, input);

// if a popup is needed AND it has not been shown for this value, show it.
      if (popupString !== "" && this.popupHistory[itemIndex] !== popupValue) {
        this.popupHistory[itemIndex] = popupValue;
        this._setupPopup(popupString, itemIndex);
      }
    }

/**
     * make a button object
     *
     * @private
     */
  }, {
    key: "_makeButton",
    value: function _makeButton() {
      var _this4 = this;
      if (this.options.showButton === true) {
        var generateButton = document.createElement("div");
        generateButton.className = "vis-configuration vis-config-button";
        generateButton.innerText = "generate options";
        generateButton.onclick = function () {
          _this4._printOptions();
        };
        generateButton.onmouseover = function () {
          generateButton.className = "vis-configuration vis-config-button hover";
        };
        generateButton.onmouseout = function () {
          generateButton.className = "vis-configuration vis-config-button";
        };
        this.optionsContainer = document.createElement("div");
        this.optionsContainer.className = "vis-configuration vis-config-option-container";
        this.domElements.push(this.optionsContainer);
        this.domElements.push(generateButton);
      }
    }

/**
     * prepare the popup
     *
     * @param {string} string
     * @param {number} index
     * @private
     */
  }, {
    key: "_setupPopup",
    value: function _setupPopup(string, index) {
      var _this5 = this;
      if (this.initialized === true && this.allowCreation === true && this.popupCounter < this.popupLimit) {
        var div = document.createElement("div");
        div.id = "vis-configuration-popup";
        div.className = "vis-configuration-popup";
        div.innerText = string;
        div.onclick = function () {
          _this5._removePopup();
        };
        this.popupCounter += 1;
        this.popupDiv = {
          html: div,
          index: index
        };
      }
    }

/**
     * remove the popup from the dom
     *
     * @private
     */
  }, {
    key: "_removePopup",
    value: function _removePopup() {
      if (this.popupDiv.html !== undefined) {
        this.popupDiv.html.parentNode.removeChild(this.popupDiv.html);
        clearTimeout(this.popupDiv.hideTimeout);
        clearTimeout(this.popupDiv.deleteTimeout);
        this.popupDiv = {};
      }
    }

/**
     * Show the popup if it is needed.
     *
     * @private
     */
  }, {
    key: "_showPopupIfNeeded",
    value: function _showPopupIfNeeded() {
      var _this6 = this;
      if (this.popupDiv.html !== undefined) {
        var correspondingElement = this.domElements[this.popupDiv.index];
        var rect = correspondingElement.getBoundingClientRect();
        this.popupDiv.html.style.left = rect.left + "px";
        this.popupDiv.html.style.top = rect.top - 30 + "px"; // 30 is the height;
        document.body.appendChild(this.popupDiv.html);
        this.popupDiv.hideTimeout = _setTimeout(function () {
          _this6.popupDiv.html.style.opacity = 0;
        }, 1500);
        this.popupDiv.deleteTimeout = _setTimeout(function () {
          _this6._removePopup();
        }, 1800);
      }
    }

/**
     * make a checkbox for boolean options.
     *
     * @param {number} defaultValue
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_makeCheckbox",
    value: function _makeCheckbox(defaultValue, value, path) {
      var checkbox = document.createElement("input");
      checkbox.type = "checkbox";
      checkbox.className = "vis-configuration vis-config-checkbox";
      checkbox.checked = defaultValue;
      if (value !== undefined) {
        checkbox.checked = value;
        if (value !== defaultValue) {
          if (_typeof(defaultValue) === "object") {
            if (value !== defaultValue.enabled) {
              this.changedOptions.push({
                path: path,
                value: value
              });
            }
          } else {
            this.changedOptions.push({
              path: path,
              value: value
            });
          }
        }
      }
      var me = this;
      checkbox.onchange = function () {
        me._update(this.checked, path);
      };
      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, checkbox);
    }

/**
     * make a text input field for string options.
     *
     * @param {number} defaultValue
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_makeTextInput",
    value: function _makeTextInput(defaultValue, value, path) {
      var checkbox = document.createElement("input");
      checkbox.type = "text";
      checkbox.className = "vis-configuration vis-config-text";
      checkbox.value = value;
      if (value !== defaultValue) {
        this.changedOptions.push({
          path: path,
          value: value
        });
      }
      var me = this;
      checkbox.onchange = function () {
        me._update(this.value, path);
      };
      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, checkbox);
    }

/**
     * make a color field with a color picker for color fields
     *
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_makeColorField",
    value: function _makeColorField(arr, value, path) {
      var _this7 = this;
      var defaultColor = arr[1];
      var div = document.createElement("div");
      value = value === undefined ? defaultColor : value;
      if (value !== "none") {
        div.className = "vis-configuration vis-config-colorBlock";
        div.style.backgroundColor = value;
      } else {
        div.className = "vis-configuration vis-config-colorBlock none";
      }
      value = value === undefined ? defaultColor : value;
      div.onclick = function () {
        _this7._showColorPicker(value, div, path);
      };
      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, div);
    }

/**
     * used by the color buttons to call the color picker.
     *
     * @param {number} value
     * @param {HTMLElement} div
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_showColorPicker",
    value: function _showColorPicker(value, div, path) {
      var _this8 = this;
      // clear the callback from this div
      div.onclick = function () {};
      this.colorPicker.insertTo(div);
      this.colorPicker.show();
      this.colorPicker.setColor(value);
      this.colorPicker.setUpdateCallback(function (color) {
        var colorString = "rgba(" + color.r + "," + color.g + "," + color.b + "," + color.a + ")";
        div.style.backgroundColor = colorString;
        _this8._update(colorString, path);
      });

// on close of the colorpicker, restore the callback.
      this.colorPicker.setCloseCallback(function () {
        div.onclick = function () {
          _this8._showColorPicker(value, div, path);
        };
      });
    }

/**
     * parse an object and draw the correct items
     *
     * @param {object} obj
     * @param {Array} [path=[]]    | where to look for the actual option
     * @param {boolean} [checkOnly=false]
     * @returns {boolean}
     * @private
     */
  }, {
    key: "_handleObject",
    value: function _handleObject(obj) {
      var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
      var checkOnly = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var show = false;
      var filter = _filterInstanceProperty(this.options);
      var visibleInSet = false;
      for (var subObj in obj) {
        if (Object.prototype.hasOwnProperty.call(obj, subObj)) {
          show = true;
          var item = obj[subObj];
          var newPath = copyAndExtendArray(path, subObj);
          if (typeof filter === "function") {
            show = filter(subObj, path);

// if needed we must go deeper into the object.
            if (show === false) {
              if (!_Array$isArray(item) && typeof item !== "string" && typeof item !== "boolean" && item instanceof Object) {
                this.allowCreation = false;
                show = this._handleObject(item, newPath, true);
                this.allowCreation = checkOnly === false;
              }
            }
          }
          if (show !== false) {
            visibleInSet = true;
            var value = this._getValue(newPath);
            if (_Array$isArray(item)) {
              this._handleArray(item, value, newPath);
            } else if (typeof item === "string") {
              this._makeTextInput(item, value, newPath);
            } else if (typeof item === "boolean") {
              this._makeCheckbox(item, value, newPath);
            } else if (item instanceof Object) {
              // skip the options that are not enabled
              if (!this.hideOption(path, subObj, this.moduleOptions)) {
                // initially collapse options with an disabled enabled option.
                if (item.enabled !== undefined) {
                  var enabledPath = copyAndExtendArray(newPath, "enabled");
                  var enabledValue = this._getValue(enabledPath);
                  if (enabledValue === true) {
                    var label = this._makeLabel(subObj, newPath, true);
                    this._makeItem(newPath, label);
                    visibleInSet = this._handleObject(item, newPath) || visibleInSet;
                  } else {
                    this._makeCheckbox(item, enabledValue, newPath);
                  }
                } else {
                  var _label = this._makeLabel(subObj, newPath, true);
                  this._makeItem(newPath, _label);
                  visibleInSet = this._handleObject(item, newPath) || visibleInSet;
                }
              }
            } else {
              console.error("dont know how to handle", item, subObj, newPath);
            }
          }
        }
      }
      return visibleInSet;
    }

/**
     * handle the array type of option
     *
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_handleArray",
    value: function _handleArray(arr, value, path) {
      if (typeof arr[0] === "string" && arr[0] === "color") {
        this._makeColorField(arr, value, path);
        if (arr[1] !== value) {
          this.changedOptions.push({
            path: path,
            value: value
          });
        }
      } else if (typeof arr[0] === "string") {
        this._makeDropdown(arr, value, path);
        if (arr[0] !== value) {
          this.changedOptions.push({
            path: path,
            value: value
          });
        }
      } else if (typeof arr[0] === "number") {
        this._makeRange(arr, value, path);
        if (arr[0] !== value) {
          this.changedOptions.push({
            path: path,
            value: Number(value)
          });
        }
      }
    }

/**
     * called to update the network with the new settings.
     *
     * @param {number} value
     * @param {Array} path    | where to look for the actual option
     * @private
     */
  }, {
    key: "_update",
    value: function _update(value, path) {
      var options = this._constructOptions(value, path);
      if (this.parent.body && this.parent.body.emitter && this.parent.body.emitter.emit) {
        this.parent.body.emitter.emit("configChange", options);
      }
      this.initialized = true;
      this.parent.setOptions(options);
    }

/**
     *
     * @param {string | boolean} value
     * @param {Array.<string>} path
     * @param {{}} optionsObj
     * @returns {{}}
     * @private
     */
  }, {
    key: "_constructOptions",
    value: function _constructOptions(value, path) {
      var optionsObj = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      var pointer = optionsObj;

// when dropdown boxes can be string or boolean, we typecast it into correct types
      value = value === "true" ? true : value;
      value = value === "false" ? false : value;
      for (var i = 0; i < path.length; i++) {
        if (path[i] !== "global") {
          if (pointer[path[i]] === undefined) {
            pointer[path[i]] = {};
          }
          if (i !== path.length - 1) {
            pointer = pointer[path[i]];
          } else {
            pointer[path[i]] = value;
          }
        }
      }
      return optionsObj;
    }

/**
     * @private
     */
  }, {
    key: "_printOptions",
    value: function _printOptions() {
      var options = this.getOptions();
      while (this.optionsContainer.firstChild) {
        this.optionsContainer.removeChild(this.optionsContainer.firstChild);
      }
      this.optionsContainer.appendChild(wrapInTag("pre", "const options = " + _JSON$stringify(options, null, 2)));
    }

/**
     *
     * @returns {{}} options
     */
  }, {
    key: "getOptions",
    value: function getOptions() {
      var options = {};
      for (var i = 0; i < this.changedOptions.length; i++) {
        this._constructOptions(this.changedOptions[i].value, this.changedOptions[i].path, options);
      }
      return options;
    }
  }]);
  return Configurator$1;
}();
/**
 * Popup is a class to create a popup window with some text
 */
var Popup$1 = /*#__PURE__*/function () {
  /**
   * @param {Element} container       The container object.
   * @param {string}  overflowMethod  How the popup should act to overflowing ('flip' or 'cap')
   */
  function Popup$1(container, overflowMethod) {
    _classCallCheck(this, Popup$1);
    this.container = container;
    this.overflowMethod = overflowMethod || "cap";
    this.x = 0;
    this.y = 0;
    this.padding = 5;
    this.hidden = false;

// create the frame
    this.frame = document.createElement("div");
    this.frame.className = "vis-tooltip";
    this.container.appendChild(this.frame);
  }

/**
   * @param {number} x   Horizontal position of the popup window
   * @param {number} y   Vertical position of the popup window
   */
  _createClass(Popup$1, [{
    key: "setPosition",
    value: function setPosition(x, y) {
      this.x = _parseInt(x);
      this.y = _parseInt(y);
    }

/**
     * Set the content for the popup window. This can be HTML code or text.
     *
     * @param {string | Element} content
     */
  }, {
    key: "setText",
    value: function setText(content) {
      if (content instanceof Element) {
        while (this.frame.firstChild) {
          this.frame.removeChild(this.frame.firstChild);
        }
        this.frame.appendChild(content);
      } else {
        // String containing literal text, element has to be used for HTML due to
        // XSS risks associated with innerHTML (i.e. prevent XSS by accident).
        this.frame.innerText = content;
      }
    }

/**
     * Show the popup window
     *
     * @param {boolean} [doShow]    Show or hide the window
     */
  }, {
    key: "show",
    value: function show(doShow) {
      if (doShow === undefined) {
        doShow = true;
      }
      if (doShow === true) {
        var height = this.frame.clientHeight;
        var width = this.frame.clientWidth;
        var maxHeight = this.frame.parentNode.clientHeight;
        var maxWidth = this.frame.parentNode.clientWidth;
        var left = 0,
          top = 0;
        if (this.overflowMethod == "flip") {
          var isLeft = false,
            isTop = true; // Where around the position it's located

if (this.y - height < this.padding) {
            isTop = false;
          }
          if (this.x + width > maxWidth - this.padding) {
            isLeft = true;
          }
          if (isLeft) {
            left = this.x - width;
          } else {
            left = this.x;
          }
          if (isTop) {
            top = this.y - height;
          } else {
            top = this.y;
          }
        } else {
          top = this.y - height;
          if (top + height + this.padding > maxHeight) {
            top = maxHeight - height - this.padding;
          }
          if (top < this.padding) {
            top = this.padding;
          }
          left = this.x;
          if (left + width + this.padding > maxWidth) {
            left = maxWidth - width - this.padding;
          }
          if (left < this.padding) {
            left = this.padding;
          }
        }
        this.frame.style.left = left + "px";
        this.frame.style.top = top + "px";
        this.frame.style.visibility = "visible";
        this.hidden = false;
      } else {
        this.hide();
      }
    }

/**
     * Hide the popup window
     */
  }, {
    key: "hide",
    value: function hide() {
      this.hidden = true;
      this.frame.style.left = "0";
      this.frame.style.top = "0";
      this.frame.style.visibility = "hidden";
    }

/**
     * Remove the popup window
     */
  }, {
    key: "destroy",
    value: function destroy() {
      this.frame.parentNode.removeChild(this.frame); // Remove element from DOM
    }
  }]);
  return Popup$1;
}();
var errorFound = false;
var allOptions$1;
var VALIDATOR_PRINT_STYLE$1 = "background: #FFeeee; color: #dd0000";

/**
 *  Used to validate options.
 */
var Validator$1 = /*#__PURE__*/function () {
  function Validator$1() {
    _classCallCheck(this, Validator$1);
  }
  _createClass(Validator$1, null, [{
    key: "validate",
    value:
    /**
     * Main function to be called
     *
     * @param {object} options
     * @param {object} referenceOptions
     * @param {object} subObject
     * @returns {boolean}
     * @static
     */
    function validate(options, referenceOptions, subObject) {
      errorFound = false;
      allOptions$1 = referenceOptions;
      var usedOptions = referenceOptions;
      if (subObject !== undefined) {
        usedOptions = referenceOptions[subObject];
      }
      Validator$1.parse(options, usedOptions, []);
      return errorFound;
    }

/**
     * Will traverse an object recursively and check every value
     *
     * @param {object} options
     * @param {object} referenceOptions
     * @param {Array} path    | where to look for the actual option
     * @static
     */
  }, {
    key: "parse",
    value: function parse(options, referenceOptions, path) {
      for (var _option3 in options) {
        if (Object.prototype.hasOwnProperty.call(options, _option3)) {
          Validator$1.check(_option3, options, referenceOptions, path);
        }
      }
    }

/**
     * Check every value. If the value is an object, call the parse function on that object.
     *
     * @param {string} option
     * @param {object} options
     * @param {object} referenceOptions
     * @param {Array} path    | where to look for the actual option
     * @static
     */
  }, {
    key: "check",
    value: function check(option, options, referenceOptions, path) {
      if (referenceOptions[option] === undefined && referenceOptions.__any__ === undefined) {
        Validator$1.getSuggestion(option, referenceOptions, path);
        return;
      }
      var referenceOption = option;
      var is_object = true;
      if (referenceOptions[option] === undefined && referenceOptions.__any__ !== undefined) {
        // NOTE: This only triggers if the __any__ is in the top level of the options object.
        //       THAT'S A REALLY BAD PLACE TO ALLOW IT!!!!
        // TODO: Examine if needed, remove if possible

// __any__ is a wildcard. Any value is accepted and will be further analysed by reference.
        referenceOption = "__any__";

// if the any-subgroup is not a predefined object in the configurator,
        // we do not look deeper into the object.
        is_object = Validator$1.getType(options[option]) === "object";
      }
      var refOptionObj = referenceOptions[referenceOption];
      if (is_object && refOptionObj.__type__ !== undefined) {
        refOptionObj = refOptionObj.__type__;
      }
      Validator$1.checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path);
    }

/**
     *
     * @param {string}  option           | the option property
     * @param {object}  options          | The supplied options object
     * @param {object}  referenceOptions | The reference options containing all options and their allowed formats
     * @param {string}  referenceOption  | Usually this is the same as option, except when handling an __any__ tag.
     * @param {string}  refOptionObj     | This is the type object from the reference options
     * @param {Array}   path             | where in the object is the option
     * @static
     */
  }, {
    key: "checkFields",
    value: function checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path) {
      var log = function log(message) {
        console.error("%c" + message + Validator$1.printLocation(path, option), VALIDATOR_PRINT_STYLE$1);
      };
      var optionType = Validator$1.getType(options[option]);
      var refOptionType = refOptionObj[optionType];
      if (refOptionType !== undefined) {
        // if the type is correct, we check if it is supposed to be one of a few select values
        if (Validator$1.getType(refOptionType) === "array" && _indexOfInstanceProperty(refOptionType).call(refOptionType, options[option]) === -1) {
          log('Invalid option detected in "' + option + '".' + " Allowed values are:" + Validator$1.print(refOptionType) + ' not "' + options[option] + '". ');
          errorFound = true;
        } else if (optionType === "object" && referenceOption !== "__any__") {
          path = copyAndExtendArray(path, option);
          Validator$1.parse(options[option], referenceOptions[referenceOption], path);
        }
      } else if (refOptionObj["any"] === undefined) {
        // type of the field is incorrect and the field cannot be any
        log('Invalid type received for "' + option + '". Expected: ' + Validator$1.print(_Object$keys(refOptionObj)) + ". Received [" + optionType + '] "' + options[option] + '"');
        errorFound = true;
      }
    }

/**
     *
     * @param {object | boolean | number | string | Array.<number> | Date | Node | Moment | undefined | null} object
     * @returns {string}
     * @static
     */
  }, {
    key: "getType",
    value: function getType(object) {
      var type = _typeof(object);
      if (type === "object") {
        if (object === null) {
          return "null";
        }
        if (object instanceof Boolean) {
          return "boolean";
        }
        if (object instanceof Number) {
          return "number";
        }
        if (object instanceof String) {
          return "string";
        }
        if (_Array$isArray(object)) {
          return "array";
        }
        if (object instanceof Date) {
          return "date";
        }
        if (object.nodeType !== undefined) {
          return "dom";
        }
        if (object._isAMomentObject === true) {
          return "moment";
        }
        return "object";
      } else if (type === "number") {
        return "number";
      } else if (type === "boolean") {
        return "boolean";
      } else if (type === "string") {
        return "string";
      } else if (type === undefined) {
        return "undefined";
      }
      return type;
    }

/**
     * @param {string} option
     * @param {object} options
     * @param {Array.<string>} path
     * @static
     */
  }, {
    key: "getSuggestion",
    value: function getSuggestion(option, options, path) {
      var localSearch = Validator$1.findInOptions(option, options, path, false);
      var globalSearch = Validator$1.findInOptions(option, allOptions$1, [], true);
      var localSearchThreshold = 8;
      var globalSearchThreshold = 4;
      var msg;
      if (localSearch.indexMatch !== undefined) {
        msg = " in " + Validator$1.printLocation(localSearch.path, option, "") + 'Perhaps it was incomplete? Did you mean: "' + localSearch.indexMatch + '"?\n\n';
      } else if (globalSearch.distance <= globalSearchThreshold && localSearch.distance > globalSearch.distance) {
        msg = " in " + Validator$1.printLocation(localSearch.path, option, "") + "Perhaps it was misplaced? Matching option found at: " + Validator$1.printLocation(globalSearch.path, globalSearch.closestMatch, "");
      } else if (localSearch.distance <= localSearchThreshold) {
        msg = '. Did you mean "' + localSearch.closestMatch + '"?' + Validator$1.printLocation(localSearch.path, option);
      } else {
        msg = ". Did you mean one of these: " + Validator$1.print(_Object$keys(options)) + Validator$1.printLocation(path, option);
      }
      console.error('%cUnknown option detected: "' + option + '"' + msg, VALIDATOR_PRINT_STYLE$1);
      errorFound = true;
    }

/**
     * traverse the options in search for a match.
     *
     * @param {string} option
     * @param {object} options
     * @param {Array} path    | where to look for the actual option
     * @param {boolean} [recursive=false]
     * @returns {{closestMatch: string, path: Array, distance: number}}
     * @static
     */
  }, {
    key: "findInOptions",
    value: function findInOptions(option, options, path) {
      var recursive = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
      var min = 1e9;
      var closestMatch = "";
      var closestMatchPath = [];
      var lowerCaseOption = option.toLowerCase();
      var indexMatch = undefined;
      for (var op in options) {
        var distance = void 0;
        if (options[op].__type__ !== undefined && recursive === true) {
          var result = Validator$1.findInOptions(option, options[op], copyAndExtendArray(path, op));
          if (min > result.distance) {
            closestMatch = result.closestMatch;
            closestMatchPath = result.path;
            min = result.distance;
            indexMatch = result.indexMatch;
          }
        } else {
          var _context20;
          if (_indexOfInstanceProperty(_context20 = op.toLowerCase()).call(_context20, lowerCaseOption) !== -1) {
            indexMatch = op;
          }
          distance = Validator$1.levenshteinDistance(option, op);
          if (min > distance) {
            closestMatch = op;
            closestMatchPath = copyArray(path);
            min = distance;
          }
        }
      }
      return {
        closestMatch: closestMatch,
        path: closestMatchPath,
        distance: min,
        indexMatch: indexMatch
      };
    }

/**
     * @param {Array.<string>} path
     * @param {object} option
     * @param {string} prefix
     * @returns {string}
     * @static
     */
  }, {
    key: "printLocation",
    value: function printLocation(path, option) {
      var prefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "Problem value found at: \n";
      var str = "\n\n" + prefix + "options = {\n";
      for (var i = 0; i < path.length; i++) {
        for (var j = 0; j < i + 1; j++) {
          str += "  ";
        }
        str += path[i] + ": {\n";
      }
      for (var _j = 0; _j < path.length + 1; _j++) {
        str += "  ";
      }
      str += option + "\n";
      for (var _i3 = 0; _i3 < path.length + 1; _i3++) {
        for (var _j2 = 0; _j2 < path.length - _i3; _j2++) {
          str += "  ";
        }
        str += "}\n";
      }
      return str + "\n\n";
    }

/**
     * @param {object} options
     * @returns {string}
     * @static
     */
  }, {
    key: "print",
    value: function print(options) {
      return _JSON$stringify(options).replace(/(")|(\[)|(\])|(,"__type__")/g, "").replace(/(,)/g, ", ");
    }

/**
     *  Compute the edit distance between the two given strings
     * http://en.wikibooks.org/wiki/Algorithm_Implementation/Strings/Levenshtein_distance#JavaScript
     *
     * Copyright (c) 2011 Andrei Mackenzie
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     *
     * @param {string} a
     * @param {string} b
     * @returns {Array.<Array.<number>>}}
     * @static
     */
  }, {
    key: "levenshteinDistance",
    value: function levenshteinDistance(a, b) {
      if (a.length === 0) return b.length;
      if (b.length === 0) return a.length;
      var matrix = [];

// increment along the first column of each row
      var i;
      for (i = 0; i <= b.length; i++) {
        matrix[i] = [i];
      }

// increment each column in the first row
      var j;
      for (j = 0; j <= a.length; j++) {
        matrix[0][j] = j;
      }

// Fill in the rest of the matrix
      for (i = 1; i <= b.length; i++) {
        for (j = 1; j <= a.length; j++) {
          if (b.charAt(i - 1) == a.charAt(j - 1)) {
            matrix[i][j] = matrix[i - 1][j - 1];
          } else {
            matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1,
            // substitution
            Math.min(matrix[i][j - 1] + 1,
            // insertion
            matrix[i - 1][j] + 1)); // deletion
          }
        }
      }

return matrix[b.length][a.length];
    }
  }]);
  return Validator$1;
}();
var Activator = Activator$1;
var Configurator = Configurator$1;
var Hammer = Hammer$1;
var Popup = Popup$1;
var VALIDATOR_PRINT_STYLE = VALIDATOR_PRINT_STYLE$1;
var Validator = Validator$1;

/* eslint-disable no-prototype-builtins */
/* eslint-disable no-unused-vars */
/* eslint-disable no-var */

/**
 * Parse a text source containing data in DOT language into a JSON object.
 * The object contains two lists: one with nodes and one with edges.
 *
 * DOT language reference: http://www.graphviz.org/doc/info/lang.html
 *
 * DOT language attributes: http://graphviz.org/content/attrs
 *
 * @param {string} data     Text containing a graph in DOT-notation
 * @returns {object} graph   An object containing two parameters:
 *                          {Object[]} nodes
 *                          {Object[]} edges
 *
 * -------------------------------------------
 * TODO
 * ====
 *
 * For label handling, this is an incomplete implementation. From docs (quote #3015):
 *
 * > the escape sequences "\n", "\l" and "\r" divide the label into lines, centered,
 * > left-justified, and right-justified, respectively.
 *
 * Source: http://www.graphviz.org/content/attrs#kescString
 *
 * > As another aid for readability, dot allows double-quoted strings to span multiple physical
 * > lines using the standard C convention of a backslash immediately preceding a newline
 * > character
 * > In addition, double-quoted strings can be concatenated using a '+' operator.
 * > As HTML strings can contain newline characters, which are used solely for formatting,
 * > the language does not allow escaped newlines or concatenation operators to be used
 * > within them.
 *
 * - Currently, only '\\n' is handled
 * - Note that text explicitly says 'labels'; the dot parser currently handles escape
 *   sequences in **all** strings.
 */
function parseDOT(data) {
  dot = data;
  return parseGraph();
}

// mapping of attributes from DOT (the keys) to vis.js (the values)
var NODE_ATTR_MAPPING = {
  fontsize: "font.size",
  fontcolor: "font.color",
  labelfontcolor: "font.color",
  fontname: "font.face",
  color: ["color.border", "color.background"],
  fillcolor: "color.background",
  tooltip: "title",
  labeltooltip: "title"
};
var EDGE_ATTR_MAPPING = _Object$create$1(NODE_ATTR_MAPPING);
EDGE_ATTR_MAPPING.color = "color.color";
EDGE_ATTR_MAPPING.style = "dashes";

// token types enumeration
var TOKENTYPE = {
  NULL: 0,
  DELIMITER: 1,
  IDENTIFIER: 2,
  UNKNOWN: 3
};

// map with all delimiters
var DELIMITERS = {
  "{": true,
  "}": true,
  "[": true,
  "]": true,
  ";": true,
  "=": true,
  ",": true,
  "->": true,
  "--": true
};
var dot = ""; // current dot file
var index = 0; // current index in dot file
var c = ""; // current token character in expr
var token = ""; // current token
var tokenType = TOKENTYPE.NULL; // type of the token

/**
 * Get the first character from the dot file.
 * The character is stored into the char c. If the end of the dot file is
 * reached, the function puts an empty string in c.
 */
function first() {
  index = 0;
  c = dot.charAt(0);
}

/**
 * Get the next character from the dot file.
 * The character is stored into the char c. If the end of the dot file is
 * reached, the function puts an empty string in c.
 */
function next() {
  index++;
  c = dot.charAt(index);
}

/**
 * Preview the next character from the dot file.
 *
 * @returns {string} cNext
 */
function nextPreview() {
  return dot.charAt(index + 1);
}

/**
 * Test whether given character is alphabetic or numeric ( a-zA-Z_0-9.:# )
 *
 * @param {string} c
 * @returns {boolean} isAlphaNumeric
 */
function isAlphaNumeric(c) {
  var charCode = c.charCodeAt(0);
  if (charCode < 47) {
    // #.
    return charCode === 35 || charCode === 46;
  }
  if (charCode < 59) {
    // 0-9 and :
    return charCode > 47;
  }
  if (charCode < 91) {
    // A-Z
    return charCode > 64;
  }
  if (charCode < 96) {
    // _
    return charCode === 95;
  }
  if (charCode < 123) {
    // a-z
    return charCode > 96;
  }
  return false;
}

/**
 * Merge all options of object b into object b
 *
 * @param {object} a
 * @param {object} b
 * @returns {object} a
 */
function merge$1(a, b) {
  if (!a) {
    a = {};
  }
  if (b) {
    for (var name in b) {
      if (b.hasOwnProperty(name)) {
        a[name] = b[name];
      }
    }
  }
  return a;
}

/**
 * Set a value in an object, where the provided parameter name can be a
 * path with nested parameters. For example:
 *
 *     var obj = {a: 2};
 *     setValue(obj, 'b.c', 3);     // obj = {a: 2, b: {c: 3}}
 *
 * @param {object} obj
 * @param {string} path  A parameter name or dot-separated parameter path,
 *                      like "color.highlight.border".
 * @param {*} value
 */
function setValue(obj, path, value) {
  var keys = path.split(".");
  var o = obj;
  while (keys.length) {
    var key = keys.shift();
    if (keys.length) {
      // this isn't the end point
      if (!o[key]) {
        o[key] = {};
      }
      o = o[key];
    } else {
      // this is the end point
      o[key] = value;
    }
  }
}

/**
 * Add a node to a graph object. If there is already a node with
 * the same id, their attributes will be merged.
 *
 * @param {object} graph
 * @param {object} node
 */
function addNode(graph, node) {
  var i, len;
  var current = null;

// find root graph (in case of subgraph)
  var graphs = [graph]; // list with all graphs from current graph to root graph
  var root = graph;
  while (root.parent) {
    graphs.push(root.parent);
    root = root.parent;
  }

// find existing node (at root level) by its id
  if (root.nodes) {
    for (i = 0, len = root.nodes.length; i < len; i++) {
      if (node.id === root.nodes[i].id) {
        current = root.nodes[i];
        break;
      }
    }
  }
  if (!current) {
    // this is a new node
    current = {
      id: node.id
    };
    if (graph.node) {
      // clone default attributes
      current.attr = merge$1(current.attr, graph.node);
    }
  }

// add node to this (sub)graph and all its parent graphs
  for (i = graphs.length - 1; i >= 0; i--) {
    var _context;
    var g = graphs[i];
    if (!g.nodes) {
      g.nodes = [];
    }
    if (_indexOfInstanceProperty(_context = g.nodes).call(_context, current) === -1) {
      g.nodes.push(current);
    }
  }

// merge attributes
  if (node.attr) {
    current.attr = merge$1(current.attr, node.attr);
  }
}

/**
 * Add an edge to a graph object
 *
 * @param {object} graph
 * @param {object} edge
 */
function addEdge(graph, edge) {
  if (!graph.edges) {
    graph.edges = [];
  }
  graph.edges.push(edge);
  if (graph.edge) {
    var attr = merge$1({}, graph.edge); // clone default attributes
    edge.attr = merge$1(attr, edge.attr); // merge attributes
  }
}

/**
 * Create an edge to a graph object
 *
 * @param {object} graph
 * @param {string | number | object} from
 * @param {string | number | object} to
 * @param {string} type
 * @param {object | null} attr
 * @returns {object} edge
 */
function createEdge(graph, from, to, type, attr) {
  var edge = {
    from: from,
    to: to,
    type: type
  };
  if (graph.edge) {
    edge.attr = merge$1({}, graph.edge); // clone default attributes
  }

edge.attr = merge$1(edge.attr || {}, attr); // merge attributes

// Move arrows attribute from attr to edge temporally created in
  // parseAttributeList().
  if (attr != null) {
    if (attr.hasOwnProperty("arrows") && attr["arrows"] != null) {
      edge["arrows"] = {
        to: {
          enabled: true,
          type: attr.arrows.type
        }
      };
      attr["arrows"] = null;
    }
  }
  return edge;
}

/**
 * Get next token in the current dot file.
 * The token and token type are available as token and tokenType
 */
function getToken() {
  tokenType = TOKENTYPE.NULL;
  token = "";

// skip over whitespaces
  while (c === " " || c === "\t" || c === "\n" || c === "\r") {
    // space, tab, enter
    next();
  }
  do {
    var isComment = false;

// skip comment
    if (c === "#") {
      // find the previous non-space character
      var i = index - 1;
      while (dot.charAt(i) === " " || dot.charAt(i) === "\t") {
        i--;
      }
      if (dot.charAt(i) === "\n" || dot.charAt(i) === "") {
        // the # is at the start of a line, this is indeed a line comment
        while (c != "" && c != "\n") {
          next();
        }
        isComment = true;
      }
    }
    if (c === "/" && nextPreview() === "/") {
      // skip line comment
      while (c != "" && c != "\n") {
        next();
      }
      isComment = true;
    }
    if (c === "/" && nextPreview() === "*") {
      // skip block comment
      while (c != "") {
        if (c === "*" && nextPreview() === "/") {
          // end of block comment found. skip these last two characters
          next();
          next();
          break;
        } else {
          next();
        }
      }
      isComment = true;
    }

// skip over whitespaces
    while (c === " " || c === "\t" || c === "\n" || c === "\r") {
      // space, tab, enter
      next();
    }
  } while (isComment);

// check for end of dot file
  if (c === "") {
    // token is still empty
    tokenType = TOKENTYPE.DELIMITER;
    return;
  }

// check for delimiters consisting of 2 characters
  var c2 = c + nextPreview();
  if (DELIMITERS[c2]) {
    tokenType = TOKENTYPE.DELIMITER;
    token = c2;
    next();
    next();
    return;
  }

// check for delimiters consisting of 1 character
  if (DELIMITERS[c]) {
    tokenType = TOKENTYPE.DELIMITER;
    token = c;
    next();
    return;
  }

// check for an identifier (number or string)
  // TODO: more precise parsing of numbers/strings (and the port separator ':')
  if (isAlphaNumeric(c) || c === "-") {
    token += c;
    next();
    while (isAlphaNumeric(c)) {
      token += c;
      next();
    }
    if (token === "false") {
      token = false; // convert to boolean
    } else if (token === "true") {
      token = true; // convert to boolean
    } else if (!isNaN(Number(token))) {
      token = Number(token); // convert to number
    }

tokenType = TOKENTYPE.IDENTIFIER;
    return;
  }

// check for a string enclosed by double quotes
  if (c === '"') {
    next();
    while (c != "" && (c != '"' || c === '"' && nextPreview() === '"')) {
      if (c === '"') {
        // skip the escape character
        token += c;
        next();
      } else if (c === "\\" && nextPreview() === "n") {
        // Honor a newline escape sequence
        token += "\n";
        next();
      } else {
        token += c;
      }
      next();
    }
    if (c != '"') {
      throw newSyntaxError('End of string " expected');
    }
    next();
    tokenType = TOKENTYPE.IDENTIFIER;
    return;
  }

// something unknown is found, wrong characters, a syntax error
  tokenType = TOKENTYPE.UNKNOWN;
  while (c != "") {
    token += c;
    next();
  }
  throw new SyntaxError('Syntax error in part "' + chop(token, 30) + '"');
}

/**
 * Parse a graph.
 *
 * @returns {object} graph
 */
function parseGraph() {
  var graph = {};
  first();
  getToken();

// optional strict keyword
  if (token === "strict") {
    graph.strict = true;
    getToken();
  }

// graph or digraph keyword
  if (token === "graph" || token === "digraph") {
    graph.type = token;
    getToken();
  }

// optional graph id
  if (tokenType === TOKENTYPE.IDENTIFIER) {
    graph.id = token;
    getToken();
  }

// open angle bracket
  if (token != "{") {
    throw newSyntaxError("Angle bracket { expected");
  }
  getToken();

// statements
  parseStatements(graph);

// close angle bracket
  if (token != "}") {
    throw newSyntaxError("Angle bracket } expected");
  }
  getToken();

// end of file
  if (token !== "") {
    throw newSyntaxError("End of file expected");
  }
  getToken();

// remove temporary default options
  delete graph.node;
  delete graph.edge;
  delete graph.graph;
  return graph;
}

/**
 * Parse a list with statements.
 *
 * @param {object} graph
 */
function parseStatements(graph) {
  while (token !== "" && token != "}") {
    parseStatement(graph);
    if (token === ";") {
      getToken();
    }
  }
}

/**
 * Parse a single statement. Can be a an attribute statement, node
 * statement, a series of node statements and edge statements, or a
 * parameter.
 *
 * @param {object} graph
 */
function parseStatement(graph) {
  // parse subgraph
  var subgraph = parseSubgraph(graph);
  if (subgraph) {
    // edge statements
    parseEdge(graph, subgraph);
    return;
  }

// parse an attribute statement
  var attr = parseAttributeStatement(graph);
  if (attr) {
    return;
  }

// parse node
  if (tokenType != TOKENTYPE.IDENTIFIER) {
    throw newSyntaxError("Identifier expected");
  }
  var id = token; // id can be a string or a number
  getToken();
  if (token === "=") {
    // id statement
    getToken();
    if (tokenType != TOKENTYPE.IDENTIFIER) {
      throw newSyntaxError("Identifier expected");
    }
    graph[id] = token;
    getToken();
    // TODO: implement comma separated list with "a_list: ID=ID [','] [a_list] "
  } else {
    parseNodeStatement(graph, id);
  }
}

/**
 * Parse a subgraph
 *
 * @param {object} graph    parent graph object
 * @returns {object | null} subgraph
 */
function parseSubgraph(graph) {
  var subgraph = null;

// optional subgraph keyword
  if (token === "subgraph") {
    subgraph = {};
    subgraph.type = "subgraph";
    getToken();

// optional graph id
    if (tokenType === TOKENTYPE.IDENTIFIER) {
      subgraph.id = token;
      getToken();
    }
  }

// open angle bracket
  if (token === "{") {
    getToken();
    if (!subgraph) {
      subgraph = {};
    }
    subgraph.parent = graph;
    subgraph.node = graph.node;
    subgraph.edge = graph.edge;
    subgraph.graph = graph.graph;

// statements
    parseStatements(subgraph);

// close angle bracket
    if (token != "}") {
      throw newSyntaxError("Angle bracket } expected");
    }
    getToken();

// remove temporary default options
    delete subgraph.node;
    delete subgraph.edge;
    delete subgraph.graph;
    delete subgraph.parent;

// register at the parent graph
    if (!graph.subgraphs) {
      graph.subgraphs = [];
    }
    graph.subgraphs.push(subgraph);
  }
  return subgraph;
}

/**
 * parse an attribute statement like "node [shape=circle fontSize=16]".
 * Available keywords are 'node', 'edge', 'graph'.
 * The previous list with default attributes will be replaced
 *
 * @param {object} graph
 * @returns {string | null} keyword Returns the name of the parsed attribute
 *                                  (node, edge, graph), or null if nothing
 *                                  is parsed.
 */
function parseAttributeStatement(graph) {
  // attribute statements
  if (token === "node") {
    getToken();

// node attributes
    graph.node = parseAttributeList();
    return "node";
  } else if (token === "edge") {
    getToken();

// edge attributes
    graph.edge = parseAttributeList();
    return "edge";
  } else if (token === "graph") {
    getToken();

// graph attributes
    graph.graph = parseAttributeList();
    return "graph";
  }
  return null;
}

/**
 * parse a node statement
 *
 * @param {object} graph
 * @param {string | number} id
 */
function parseNodeStatement(graph, id) {
  // node statement
  var node = {
    id: id
  };
  var attr = parseAttributeList();
  if (attr) {
    node.attr = attr;
  }
  addNode(graph, node);

// edge statements
  parseEdge(graph, id);
}

/**
 * Parse an edge or a series of edges
 *
 * @param {object} graph
 * @param {string | number} from        Id of the from node
 */
function parseEdge(graph, from) {
  while (token === "->" || token === "--") {
    var to;
    var type = token;
    getToken();
    var subgraph = parseSubgraph(graph);
    if (subgraph) {
      to = subgraph;
    } else {
      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError("Identifier or subgraph expected");
      }
      to = token;
      addNode(graph, {
        id: to
      });
      getToken();
    }

// parse edge attributes
    var attr = parseAttributeList();

// create edge
    var edge = createEdge(graph, from, to, type, attr);
    addEdge(graph, edge);
    from = to;
  }
}

/**
 * Parse a set with attributes,
 * for example [label="1.000", shape=solid]
 *
 * @returns {object | null} attr
 */
function parseAttributeList() {
  var i;
  var attr = null;

// edge styles of dot and vis
  var edgeStyles = {
    dashed: true,
    solid: false,
    dotted: [1, 5]
  };

/**
   * Define arrow types.
   * vis currently supports types defined in 'arrowTypes'.
   * Details of arrow shapes are described in
   * http://www.graphviz.org/content/arrow-shapes
   */
  var arrowTypes = {
    dot: "circle",
    box: "box",
    crow: "crow",
    curve: "curve",
    icurve: "inv_curve",
    normal: "triangle",
    inv: "inv_triangle",
    diamond: "diamond",
    tee: "bar",
    vee: "vee"
  };

/**
   * 'attr_list' contains attributes for checking if some of them are affected
   * later. For instance, both of 'arrowhead' and 'dir' (edge style defined
   * in DOT) make changes to 'arrows' attribute in vis.
   */
  var attr_list = new Array();
  var attr_names = new Array(); // used for checking the case.

// parse attributes
  while (token === "[") {
    getToken();
    attr = {};
    while (token !== "" && token != "]") {
      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError("Attribute name expected");
      }
      var name = token;
      getToken();
      if (token != "=") {
        throw newSyntaxError("Equal sign = expected");
      }
      getToken();
      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError("Attribute value expected");
      }
      var value = token;

// convert from dot style to vis
      if (name === "style") {
        value = edgeStyles[value];
      }
      var arrowType;
      if (name === "arrowhead") {
        arrowType = arrowTypes[value];
        name = "arrows";
        value = {
          to: {
            enabled: true,
            type: arrowType
          }
        };
      }
      if (name === "arrowtail") {
        arrowType = arrowTypes[value];
        name = "arrows";
        value = {
          from: {
            enabled: true,
            type: arrowType
          }
        };
      }
      attr_list.push({
        attr: attr,
        name: name,
        value: value
      });
      attr_names.push(name);
      getToken();
      if (token == ",") {
        getToken();
      }
    }
    if (token != "]") {
      throw newSyntaxError("Bracket ] expected");
    }
    getToken();
  }

/**
   * As explained in [1], graphviz has limitations for combination of
   * arrow[head|tail] and dir. If attribute list includes 'dir',
   * following cases just be supported.
   *   1. both or none + arrowhead, arrowtail
   *   2. forward + arrowhead (arrowtail is not affedted)
   *   3. back + arrowtail (arrowhead is not affected)
   * [1] https://www.graphviz.org/doc/info/attrs.html#h:undir_note
   */
  if (_includesInstanceProperty(attr_names).call(attr_names, "dir")) {
    var idx = {}; // get index of 'arrows' and 'dir'
    idx.arrows = {};
    for (i = 0; i < attr_list.length; i++) {
      if (attr_list[i].name === "arrows") {
        if (attr_list[i].value.to != null) {
          idx.arrows.to = i;
        } else if (attr_list[i].value.from != null) {
          idx.arrows.from = i;
        } else {
          throw newSyntaxError("Invalid value of arrows");
        }
      } else if (attr_list[i].name === "dir") {
        idx.dir = i;
      }
    }

// first, add default arrow shape if it is not assigned to avoid error
    var dir_type = attr_list[idx.dir].value;
    if (!_includesInstanceProperty(attr_names).call(attr_names, "arrows")) {
      if (dir_type === "both") {
        attr_list.push({
          attr: attr_list[idx.dir].attr,
          name: "arrows",
          value: {
            to: {
              enabled: true
            }
          }
        });
        idx.arrows.to = attr_list.length - 1;
        attr_list.push({
          attr: attr_list[idx.dir].attr,
          name: "arrows",
          value: {
            from: {
              enabled: true
            }
          }
        });
        idx.arrows.from = attr_list.length - 1;
      } else if (dir_type === "forward") {
        attr_list.push({
          attr: attr_list[idx.dir].attr,
          name: "arrows",
          value: {
            to: {
              enabled: true
            }
          }
        });
        idx.arrows.to = attr_list.length - 1;
      } else if (dir_type === "back") {
        attr_list.push({
          attr: attr_list[idx.dir].attr,
          name: "arrows",
          value: {
            from: {
              enabled: true
            }
          }
        });
        idx.arrows.from = attr_list.length - 1;
      } else if (dir_type === "none") {
        attr_list.push({
          attr: attr_list[idx.dir].attr,
          name: "arrows",
          value: ""
        });
        idx.arrows.to = attr_list.length - 1;
      } else {
        throw newSyntaxError('Invalid dir type "' + dir_type + '"');
      }
    }
    var from_type;
    var to_type;
    // update 'arrows' attribute from 'dir'.
    if (dir_type === "both") {
      // both of shapes of 'from' and 'to' are given
      if (idx.arrows.to && idx.arrows.from) {
        to_type = attr_list[idx.arrows.to].value.to.type;
        from_type = attr_list[idx.arrows.from].value.from.type;
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.to].attr,
          name: attr_list[idx.arrows.to].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };
        _spliceInstanceProperty(attr_list).call(attr_list, idx.arrows.from, 1);

// shape of 'to' is assigned and use default to 'from'
      } else if (idx.arrows.to) {
        to_type = attr_list[idx.arrows.to].value.to.type;
        from_type = "arrow";
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.to].attr,
          name: attr_list[idx.arrows.to].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };

// only shape of 'from' is assigned and use default for 'to'
      } else if (idx.arrows.from) {
        to_type = "arrow";
        from_type = attr_list[idx.arrows.from].value.from.type;
        attr_list[idx.arrows.from] = {
          attr: attr_list[idx.arrows.from].attr,
          name: attr_list[idx.arrows.from].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };
      }
    } else if (dir_type === "back") {
      // given both of shapes, but use only 'from'
      if (idx.arrows.to && idx.arrows.from) {
        to_type = "";
        from_type = attr_list[idx.arrows.from].value.from.type;
        attr_list[idx.arrows.from] = {
          attr: attr_list[idx.arrows.from].attr,
          name: attr_list[idx.arrows.from].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };

// given shape of 'to', but does not use it
      } else if (idx.arrows.to) {
        to_type = "";
        from_type = "arrow";
        idx.arrows.from = idx.arrows.to;
        attr_list[idx.arrows.from] = {
          attr: attr_list[idx.arrows.from].attr,
          name: attr_list[idx.arrows.from].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };

// assign given 'from' shape
      } else if (idx.arrows.from) {
        to_type = "";
        from_type = attr_list[idx.arrows.from].value.from.type;
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.from].attr,
          name: attr_list[idx.arrows.from].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };
      }
      attr_list[idx.arrows.from] = {
        attr: attr_list[idx.arrows.from].attr,
        name: attr_list[idx.arrows.from].name,
        value: {
          from: {
            enabled: true,
            type: attr_list[idx.arrows.from].value.from.type
          }
        }
      };
    } else if (dir_type === "none") {
      var idx_arrow;
      if (idx.arrows.to) {
        idx_arrow = idx.arrows.to;
      } else {
        idx_arrow = idx.arrows.from;
      }
      attr_list[idx_arrow] = {
        attr: attr_list[idx_arrow].attr,
        name: attr_list[idx_arrow].name,
        value: ""
      };
    } else if (dir_type === "forward") {
      // given both of shapes, but use only 'to'
      if (idx.arrows.to && idx.arrows.from) {
        to_type = attr_list[idx.arrows.to].value.to.type;
        from_type = "";
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.to].attr,
          name: attr_list[idx.arrows.to].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };

// assign given 'to' shape
      } else if (idx.arrows.to) {
        to_type = attr_list[idx.arrows.to].value.to.type;
        from_type = "";
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.to].attr,
          name: attr_list[idx.arrows.to].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };

// given shape of 'from', but does not use it
      } else if (idx.arrows.from) {
        to_type = "arrow";
        from_type = "";
        idx.arrows.to = idx.arrows.from;
        attr_list[idx.arrows.to] = {
          attr: attr_list[idx.arrows.to].attr,
          name: attr_list[idx.arrows.to].name,
          value: {
            to: {
              enabled: true,
              type: to_type
            },
            from: {
              enabled: true,
              type: from_type
            }
          }
        };
      }
      attr_list[idx.arrows.to] = {
        attr: attr_list[idx.arrows.to].attr,
        name: attr_list[idx.arrows.to].name,
        value: {
          to: {
            enabled: true,
            type: attr_list[idx.arrows.to].value.to.type
          }
        }
      };
    } else {
      throw newSyntaxError('Invalid dir type "' + dir_type + '"');
    }

// remove 'dir' attribute no need anymore
    _spliceInstanceProperty(attr_list).call(attr_list, idx.dir, 1);
  }

// parse 'penwidth'
  var nof_attr_list;
  if (_includesInstanceProperty(attr_names).call(attr_names, "penwidth")) {
    var tmp_attr_list = [];
    nof_attr_list = attr_list.length;
    for (i = 0; i < nof_attr_list; i++) {
      // exclude 'width' from attr_list if 'penwidth' exists
      if (attr_list[i].name !== "width") {
        if (attr_list[i].name === "penwidth") {
          attr_list[i].name = "width";
        }
        tmp_attr_list.push(attr_list[i]);
      }
    }
    attr_list = tmp_attr_list;
  }
  nof_attr_list = attr_list.length;
  for (i = 0; i < nof_attr_list; i++) {
    setValue(attr_list[i].attr, attr_list[i].name, attr_list[i].value);
  }
  return attr;
}

/**
 * Create a syntax error with extra information on current token and index.
 *
 * @param {string} message
 * @returns {SyntaxError} err
 */
function newSyntaxError(message) {
  return new SyntaxError(message + ', got "' + chop(token, 30) + '" (char ' + index + ")");
}

/**
 * Chop off text after a maximum length
 *
 * @param {string} text
 * @param {number} maxLength
 * @returns {string}
 */
function chop(text, maxLength) {
  return text.length <= maxLength ? text : text.substr(0, 27) + "...";
}

/**
 * Execute a function fn for each pair of elements in two arrays
 *
 * @param {Array | *} array1
 * @param {Array | *} array2
 * @param {Function} fn
 */
function forEach2(array1, array2, fn) {
  if (_Array$isArray(array1)) {
    _forEachInstanceProperty(array1).call(array1, function (elem1) {
      if (_Array$isArray(array2)) {
        _forEachInstanceProperty(array2).call(array2, function (elem2) {
          fn(elem1, elem2);
        });
      } else {
        fn(elem1, array2);
      }
    });
  } else {
    if (_Array$isArray(array2)) {
      _forEachInstanceProperty(array2).call(array2, function (elem2) {
        fn(array1, elem2);
      });
    } else {
      fn(array1, array2);
    }
  }
}

/**
 * Set a nested property on an object
 * When nested objects are missing, they will be created.
 * For example setProp({}, 'font.color', 'red') will return {font: {color: 'red'}}
 *
 * @param {object} object
 * @param {string} path   A dot separated string like 'font.color'
 * @param {*} value       Value for the property
 * @returns {object} Returns the original object, allows for chaining.
 */
function setProp(object, path, value) {
  var names = path.split(".");
  var prop = names.pop();

// traverse over the nested objects
  var obj = object;
  for (var i = 0; i < names.length; i++) {
    var name = names[i];
    if (!(name in obj)) {
      obj[name] = {};
    }
    obj = obj[name];
  }

// set the property value
  obj[prop] = value;
  return object;
}

/**
 * Convert an object with DOT attributes to their vis.js equivalents.
 *
 * @param {object} attr     Object with DOT attributes
 * @param {object} mapping
 * @returns {object}         Returns an object with vis.js attributes
 */
function convertAttr(attr, mapping) {
  var converted = {};
  for (var prop in attr) {
    if (attr.hasOwnProperty(prop)) {
      var visProp = mapping[prop];
      if (_Array$isArray(visProp)) {
        _forEachInstanceProperty(visProp).call(visProp, function (visPropI) {
          setProp(converted, visPropI, attr[prop]);
        });
      } else if (typeof visProp === "string") {
        setProp(converted, visProp, attr[prop]);
      } else {
        setProp(converted, prop, attr[prop]);
      }
    }
  }
  return converted;
}

/**
 * Convert a string containing a graph in DOT language into a map containing
 * with nodes and edges in the format of graph.
 *
 * @param {string} data         Text containing a graph in DOT-notation
 * @returns {object} graphData
 */
function DOTToGraph(data) {
  // parse the DOT file
  var dotData = parseDOT(data);
  var graphData = {
    nodes: [],
    edges: [],
    options: {}
  };

// copy the nodes
  if (dotData.nodes) {
    var _context2;
    _forEachInstanceProperty(_context2 = dotData.nodes).call(_context2, function (dotNode) {
      var graphNode = {
        id: dotNode.id,
        label: String(dotNode.label || dotNode.id)
      };
      merge$1(graphNode, convertAttr(dotNode.attr, NODE_ATTR_MAPPING));
      if (graphNode.image) {
        graphNode.shape = "image";
      }
      graphData.nodes.push(graphNode);
    });
  }

// copy the edges
  if (dotData.edges) {
    var _context3;
    /**
     * Convert an edge in DOT format to an edge with VisGraph format
     *
     * @param {object} dotEdge
     * @returns {object} graphEdge
     */
    var convertEdge = function convertEdge(dotEdge) {
      var graphEdge = {
        from: dotEdge.from,
        to: dotEdge.to
      };
      merge$1(graphEdge, convertAttr(dotEdge.attr, EDGE_ATTR_MAPPING));

// Add arrows attribute to default styled arrow.
      // The reason why default style is not added in parseAttributeList() is
      // because only default is cleared before here.
      if (graphEdge.arrows == null && dotEdge.type === "->") {
        graphEdge.arrows = "to";
      }
      return graphEdge;
    };
    _forEachInstanceProperty(_context3 = dotData.edges).call(_context3, function (dotEdge) {
      var from, to;
      if (dotEdge.from instanceof Object) {
        from = dotEdge.from.nodes;
      } else {
        from = {
          id: dotEdge.from
        };
      }
      if (dotEdge.to instanceof Object) {
        to = dotEdge.to.nodes;
      } else {
        to = {
          id: dotEdge.to
        };
      }
      if (dotEdge.from instanceof Object && dotEdge.from.edges) {
        var _context4;
        _forEachInstanceProperty(_context4 = dotEdge.from.edges).call(_context4, function (subEdge) {
          var graphEdge = convertEdge(subEdge);
          graphData.edges.push(graphEdge);
        });
      }
      forEach2(from, to, function (from, to) {
        var subEdge = createEdge(graphData, from.id, to.id, dotEdge.type, dotEdge.attr);
        var graphEdge = convertEdge(subEdge);
        graphData.edges.push(graphEdge);
      });
      if (dotEdge.to instanceof Object && dotEdge.to.edges) {
        var _context5;
        _forEachInstanceProperty(_context5 = dotEdge.to.edges).call(_context5, function (subEdge) {
          var graphEdge = convertEdge(subEdge);
          graphData.edges.push(graphEdge);
        });
      }
    });
  }

// copy the options
  if (dotData.attr) {
    graphData.options = dotData.attr;
  }
  return graphData;
}

/**
 * Convert Gephi to Vis.
 *
 * @param gephiJSON - The parsed JSON data in Gephi format.
 * @param optionsObj - Additional options.
 * @returns The converted data ready to be used in Vis.
 */
function parseGephi(gephiJSON, optionsObj) {
  var _context;
  var options = {
    edges: {
      inheritColor: false
    },
    nodes: {
      fixed: false,
      parseColor: false
    }
  };
  if (optionsObj != null) {
    if (optionsObj.fixed != null) {
      options.nodes.fixed = optionsObj.fixed;
    }
    if (optionsObj.parseColor != null) {
      options.nodes.parseColor = optionsObj.parseColor;
    }
    if (optionsObj.inheritColor != null) {
      options.edges.inheritColor = optionsObj.inheritColor;
    }
  }
  var gEdges = gephiJSON.edges;
  var vEdges = _mapInstanceProperty(gEdges).call(gEdges, function (gEdge) {
    var vEdge = {
      from: gEdge.source,
      id: gEdge.id,
      to: gEdge.target
    };
    if (gEdge.attributes != null) {
      vEdge.attributes = gEdge.attributes;
    }
    if (gEdge.label != null) {
      vEdge.label = gEdge.label;
    }
    if (gEdge.attributes != null && gEdge.attributes.title != null) {
      vEdge.title = gEdge.attributes.title;
    }
    if (gEdge.type === "Directed") {
      vEdge.arrows = "to";
    }
    // edge['value'] = gEdge.attributes != null ? gEdge.attributes.Weight : undefined;
    // edge['width'] = edge['value'] != null ? undefined : edgegEdge.size;
    if (gEdge.color && options.edges.inheritColor === false) {
      vEdge.color = gEdge.color;
    }
    return vEdge;
  });
  var vNodes = _mapInstanceProperty(_context = gephiJSON.nodes).call(_context, function (gNode) {
    var vNode = {
      id: gNode.id,
      fixed: options.nodes.fixed && gNode.x != null && gNode.y != null
    };
    if (gNode.attributes != null) {
      vNode.attributes = gNode.attributes;
    }
    if (gNode.label != null) {
      vNode.label = gNode.label;
    }
    if (gNode.size != null) {
      vNode.size = gNode.size;
    }
    if (gNode.attributes != null && gNode.attributes.title != null) {
      vNode.title = gNode.attributes.title;
    }
    if (gNode.title != null) {
      vNode.title = gNode.title;
    }
    if (gNode.x != null) {
      vNode.x = gNode.x;
    }
    if (gNode.y != null) {
      vNode.y = gNode.y;
    }
    if (gNode.color != null) {
      if (options.nodes.parseColor === true) {
        vNode.color = gNode.color;
      } else {
        vNode.color = {
          background: gNode.color,
          border: gNode.color,
          highlight: {
            background: gNode.color,
            border: gNode.color
          },
          hover: {
            background: gNode.color,
            border: gNode.color
          }
        };
      }
    }
    return vNode;
  });
  return {
    nodes: vNodes,
    edges: vEdges
  };
}

// English
var en = {
  addDescription: "Click in an empty space to place a new node.",
  addEdge: "Add Edge",
  addNode: "Add Node",
  back: "Back",
  close: "Close",
  createEdgeError: "Cannot link edges to a cluster.",
  del: "Delete selected",
  deleteClusterError: "Clusters cannot be deleted.",
  edgeDescription: "Click on a node and drag the edge to another node to connect them.",
  edit: "Edit",
  editClusterError: "Clusters cannot be edited.",
  editEdge: "Edit Edge",
  editEdgeDescription: "Click on the control points and drag them to a node to connect to it.",
  editNode: "Edit Node"
};
// German
var de = {
  addDescription: "Klicke auf eine freie Stelle, um einen neuen Knoten zu plazieren.",
  addEdge: "Kante hinzuf\xFCgen",
  addNode: "Knoten hinzuf\xFCgen",
  back: "Zur\xFCck",
  close: "Schließen",
  createEdgeError: "Es ist nicht m\xF6glich, Kanten mit Clustern zu verbinden.",
  del: "L\xF6sche Auswahl",
  deleteClusterError: "Cluster k\xF6nnen nicht gel\xF6scht werden.",
  edgeDescription: "Klicke auf einen Knoten und ziehe die Kante zu einem anderen Knoten, um diese zu verbinden.",
  edit: "Editieren",
  editClusterError: "Cluster k\xF6nnen nicht editiert werden.",
  editEdge: "Kante editieren",
  editEdgeDescription: "Klicke auf die Verbindungspunkte und ziehe diese auf einen Knoten, um sie zu verbinden.",
  editNode: "Knoten editieren"
};
// Spanish
var es = {
  addDescription: "Haga clic en un lugar vac\xEDo para colocar un nuevo nodo.",
  addEdge: "A\xF1adir arista",
  addNode: "A\xF1adir nodo",
  back: "Atr\xE1s",
  close: "Cerrar",
  createEdgeError: "No se puede conectar una arista a un grupo.",
  del: "Eliminar selecci\xF3n",
  deleteClusterError: "No es posible eliminar grupos.",
  edgeDescription: "Haga clic en un nodo y arrastre la arista hacia otro nodo para conectarlos.",
  edit: "Editar",
  editClusterError: "No es posible editar grupos.",
  editEdge: "Editar arista",
  editEdgeDescription: "Haga clic en un punto de control y arrastrelo a un nodo para conectarlo.",
  editNode: "Editar nodo"
};
//Italiano
var it = {
  addDescription: "Clicca per aggiungere un nuovo nodo",
  addEdge: "Aggiungi un vertice",
  addNode: "Aggiungi un nodo",
  back: "Indietro",
  close: "Chiudere",
  createEdgeError: "Non si possono collegare vertici ad un cluster",
  del: "Cancella la selezione",
  deleteClusterError: "I cluster non possono essere cancellati",
  edgeDescription: "Clicca su un nodo e trascinalo ad un altro nodo per connetterli.",
  edit: "Modifica",
  editClusterError: "I clusters non possono essere modificati.",
  editEdge: "Modifica il vertice",
  editEdgeDescription: "Clicca sui Punti di controllo e trascinali ad un nodo per connetterli.",
  editNode: "Modifica il nodo"
};
// Dutch
var nl = {
  addDescription: "Klik op een leeg gebied om een nieuwe node te maken.",
  addEdge: "Link toevoegen",
  addNode: "Node toevoegen",
  back: "Terug",
  close: "Sluiten",
  createEdgeError: "Kan geen link maken naar een cluster.",
  del: "Selectie verwijderen",
  deleteClusterError: "Clusters kunnen niet worden verwijderd.",
  edgeDescription: "Klik op een node en sleep de link naar een andere node om ze te verbinden.",
  edit: "Wijzigen",
  editClusterError: "Clusters kunnen niet worden aangepast.",
  editEdge: "Link wijzigen",
  editEdgeDescription: "Klik op de verbindingspunten en sleep ze naar een node om daarmee te verbinden.",
  editNode: "Node wijzigen"
};
// Portuguese Brazil
var pt = {
  addDescription: "Clique em um espaço em branco para adicionar um novo nó",
  addEdge: "Adicionar aresta",
  addNode: "Adicionar nó",
  back: "Voltar",
  close: "Fechar",
  createEdgeError: "Não foi possível linkar arestas a um cluster.",
  del: "Remover selecionado",
  deleteClusterError: "Clusters não puderam ser removidos.",
  edgeDescription: "Clique em um nó e arraste a aresta até outro nó para conectá-los",
  edit: "Editar",
  editClusterError: "Clusters não puderam ser editados.",
  editEdge: "Editar aresta",
  editEdgeDescription: "Clique nos pontos de controle e os arraste para um nó para conectá-los",
  editNode: "Editar nó"
};
// Russian
var ru = {
  addDescription: "Кликните в свободное место, чтобы добавить новый узел.",
  addEdge: "Добавить ребро",
  addNode: "Добавить узел",
  back: "Назад",
  close: "Закрывать",
  createEdgeError: "Невозможно соединить ребра в кластер.",
  del: "Удалить выбранное",
  deleteClusterError: "Кластеры не могут быть удалены",
  edgeDescription: "Кликните на узел и протяните ребро к другому узлу, чтобы соединить их.",
  edit: "Редактировать",
  editClusterError: "Кластеры недоступны для редактирования.",
  editEdge: "Редактировать ребро",
  editEdgeDescription: "Кликните на контрольные точки и перетащите их в узел, чтобы подключиться к нему.",
  editNode: "Редактировать узел"
};
// Chinese
var cn = {
  addDescription: "单击空白处放置新节点。",
  addEdge: "添加连接线",
  addNode: "添加节点",
  back: "返回",
  close: "關閉",
  createEdgeError: "无法将连接线连接到群集。",
  del: "删除选定",
  deleteClusterError: "无法删除群集。",
  edgeDescription: "单击某个节点并将该连接线拖动到另一个节点以连接它们。",
  edit: "编辑",
  editClusterError: "无法编辑群集。",
  editEdge: "编辑连接线",
  editEdgeDescription: "单击控制节点并将它们拖到节点上连接。",
  editNode: "编辑节点"
};
// Ukrainian
var uk = {
  addDescription: "Kлікніть на вільне місце, щоб додати новий вузол.",
  addEdge: "Додати край",
  addNode: "Додати вузол",
  back: "Назад",
  close: "Закрити",
  createEdgeError: "Не можливо об'єднати краї в групу.",
  del: "Видалити обране",
  deleteClusterError: "Групи не можуть бути видалені.",
  edgeDescription: "Клікніть на вузол і перетягніть край до іншого вузла, щоб їх з'єднати.",
  edit: "Редагувати",
  editClusterError: "Групи недоступні для редагування.",
  editEdge: "Редагувати край",
  editEdgeDescription: "Клікніть на контрольні точки і перетягніть їх у вузол, щоб підключитися до нього.",
  editNode: "Редагувати вузол"
};
// French
var fr = {
  addDescription: "Cliquez dans un endroit vide pour placer un nœud.",
  addEdge: "Ajouter un lien",
  addNode: "Ajouter un nœud",
  back: "Retour",
  close: "Fermer",
  createEdgeError: "Impossible de créer un lien vers un cluster.",
  del: "Effacer la sélection",
  deleteClusterError: "Les clusters ne peuvent pas être effacés.",
  edgeDescription: "Cliquez sur un nœud et glissez le lien vers un autre nœud pour les connecter.",
  edit: "Éditer",
  editClusterError: "Les clusters ne peuvent pas être édités.",
  editEdge: "Éditer le lien",
  editEdgeDescription: "Cliquez sur les points de contrôle et glissez-les pour connecter un nœud.",
  editNode: "Éditer le nœud"
};
// Czech
var cs = {
  addDescription: "Kluknutím do prázdného prostoru můžete přidat nový vrchol.",
  addEdge: "Přidat hranu",
  addNode: "Přidat vrchol",
  back: "Zpět",
  close: "Zavřít",
  createEdgeError: "Nelze připojit hranu ke shluku.",
  del: "Smazat výběr",
  deleteClusterError: "Nelze mazat shluky.",
  edgeDescription: "Přetažením z jednoho vrcholu do druhého můžete spojit tyto vrcholy novou hranou.",
  edit: "Upravit",
  editClusterError: "Nelze upravovat shluky.",
  editEdge: "Upravit hranu",
  editEdgeDescription: "Přetažením kontrolního vrcholu hrany ji můžete připojit k jinému vrcholu.",
  editNode: "Upravit vrchol"
};

var locales = /*#__PURE__*/Object.freeze({
	__proto__: null,
	cn: cn,
	cs: cs,
	de: de,
	en: en,
	es: es,
	fr: fr,
	it: it,
	nl: nl,
	pt: pt,
	ru: ru,
	uk: uk
});

/**
 * Normalizes language code into the format used internally.
 *
 * @param locales - All the available locales.
 * @param rawCode - The original code as supplied by the user.
 * @returns Language code in the format language-COUNTRY or language, eventually
 * fallbacks to en.
 */
function normalizeLanguageCode(locales, rawCode) {
  try {
    var _rawCode$split = rawCode.split(/[-_ /]/, 2),
      _rawCode$split2 = _slicedToArray(_rawCode$split, 2),
      rawLanguage = _rawCode$split2[0],
      rawCountry = _rawCode$split2[1];
    var language = rawLanguage != null ? rawLanguage.toLowerCase() : null;
    var country = rawCountry != null ? rawCountry.toUpperCase() : null;
    if (language && country) {
      var code = language + "-" + country;
      if (Object.prototype.hasOwnProperty.call(locales, code)) {
        return code;
      } else {
        var _context;
        console.warn(_concatInstanceProperty(_context = "Unknown variant ".concat(country, " of language ")).call(_context, language, "."));
      }
    }
    if (language) {
      var _code = language;
      if (Object.prototype.hasOwnProperty.call(locales, _code)) {
        return _code;
      } else {
        console.warn("Unknown language ".concat(language));
      }
    }
    console.warn("Unknown locale ".concat(rawCode, ", falling back to English."));
    return "en";
  } catch (error) {
    console.error(error);
    console.warn("Unexpected error while normalizing locale ".concat(rawCode, ", falling back to English."));
    return "en";
  }
}

/**
 * Associates a canvas to a given image, containing a number of renderings
 * of the image at various sizes.
 *
 * This technique is known as 'mipmapping'.
 *
 * NOTE: Images can also be of type 'data:svg+xml`. This code also works
 *       for svg, but the mipmapping may not be necessary.
 *
 * @param {Image} image
 */
var CachedImage = /*#__PURE__*/function () {
  /**
   * @ignore
   */
  function CachedImage() {
    _classCallCheck(this, CachedImage);
    this.NUM_ITERATIONS = 4; // Number of items in the coordinates array

this.image = new Image();
    this.canvas = document.createElement("canvas");
  }

/**
   * Called when the image has been successfully loaded.
   */
  _createClass(CachedImage, [{
    key: "init",
    value: function init() {
      if (this.initialized()) return;
      this.src = this.image.src; // For same interface with Image
      var w = this.image.width;
      var h = this.image.height;

// Ease external access
      this.width = w;
      this.height = h;
      var h2 = Math.floor(h / 2);
      var h4 = Math.floor(h / 4);
      var h8 = Math.floor(h / 8);
      var h16 = Math.floor(h / 16);
      var w2 = Math.floor(w / 2);
      var w4 = Math.floor(w / 4);
      var w8 = Math.floor(w / 8);
      var w16 = Math.floor(w / 16);

// Make canvas as small as possible
      this.canvas.width = 3 * w4;
      this.canvas.height = h2;

// Coordinates and sizes of images contained in the canvas
      // Values per row:  [top x, left y, width, height]

this.coordinates = [[0, 0, w2, h2], [w2, 0, w4, h4], [w2, h4, w8, h8], [5 * w8, h4, w16, h16]];
      this._fillMipMap();
    }

/**
     * @returns {boolean} true if init() has been called, false otherwise.
     */
  }, {
    key: "initialized",
    value: function initialized() {
      return this.coordinates !== undefined;
    }

/**
     * Redraw main image in various sizes to the context.
     *
     * The rationale behind this is to reduce artefacts due to interpolation
     * at differing zoom levels.
     *
     * Source: http://stackoverflow.com/q/18761404/1223531
     *
     * This methods takes the resizing out of the drawing loop, in order to
     * reduce performance overhead.
     *
     * TODO: The code assumes that a 2D context can always be gotten. This is
     *       not necessarily true! OTOH, if not true then usage of this class
     *       is senseless.
     *
     * @private
     */
  }, {
    key: "_fillMipMap",
    value: function _fillMipMap() {
      var ctx = this.canvas.getContext("2d");

// First zoom-level comes from the image
      var to = this.coordinates[0];
      ctx.drawImage(this.image, to[0], to[1], to[2], to[3]);

// The rest are copy actions internal to the canvas/context
      for (var iterations = 1; iterations < this.NUM_ITERATIONS; iterations++) {
        var from = this.coordinates[iterations - 1];
        var _to = this.coordinates[iterations];
        ctx.drawImage(this.canvas, from[0], from[1], from[2], from[3], _to[0], _to[1], _to[2], _to[3]);
      }
    }

/**
     * Draw the image, using the mipmap if necessary.
     *
     * MipMap is only used if param factor > 2; otherwise, original bitmap
     * is resized. This is also used to skip mipmap usage, e.g. by setting factor = 1
     *
     * Credits to 'Alex de Mulder' for original implementation.
     *
     * @param {CanvasRenderingContext2D} ctx  context on which to draw zoomed image
     * @param {Float} factor scale factor at which to draw
     * @param {number} left
     * @param {number} top
     * @param {number} width
     * @param {number} height
     */
  }, {
    key: "drawImageAtPosition",
    value: function drawImageAtPosition(ctx, factor, left, top, width, height) {
      if (!this.initialized()) return; //can't draw image yet not intialized

if (factor > 2) {
        // Determine which zoomed image to use
        factor *= 0.5;
        var iterations = 0;
        while (factor > 2 && iterations < this.NUM_ITERATIONS) {
          factor *= 0.5;
          iterations += 1;
        }
        if (iterations >= this.NUM_ITERATIONS) {
          iterations = this.NUM_ITERATIONS - 1;
        }
        //console.log("iterations: " + iterations);

var from = this.coordinates[iterations];
        ctx.drawImage(this.canvas, from[0], from[1], from[2], from[3], left, top, width, height);
      } else {
        // Draw image directly
        ctx.drawImage(this.image, left, top, width, height);
      }
    }
  }]);
  return CachedImage;
}();

/**
 * This callback is a callback that accepts an Image.
 *
 * @callback ImageCallback
 * @param {Image} image
 */

/**
 * This class loads images and keeps them stored.
 *
 * @param {ImageCallback} callback
 */
var Images = /*#__PURE__*/function () {
  /**
   * @param {ImageCallback} callback
   */
  function Images(callback) {
    _classCallCheck(this, Images);
    this.images = {};
    this.imageBroken = {};
    this.callback = callback;
  }

/**
   * @param {string} url                      The original Url that failed to load, if the broken image is successfully loaded it will be added to the cache using this Url as the key so that subsequent requests for this Url will return the broken image
   * @param {string} brokenUrl                Url the broken image to try and load
   * @param {Image} imageToLoadBrokenUrlOn   The image object
   */
  _createClass(Images, [{
    key: "_tryloadBrokenUrl",
    value: function _tryloadBrokenUrl(url, brokenUrl, imageToLoadBrokenUrlOn) {
      //If these parameters aren't specified then exit the function because nothing constructive can be done
      if (url === undefined || imageToLoadBrokenUrlOn === undefined) return;
      if (brokenUrl === undefined) {
        console.warn("No broken url image defined");
        return;
      }

//Clear the old subscription to the error event and put a new in place that only handle errors in loading the brokenImageUrl
      imageToLoadBrokenUrlOn.image.onerror = function () {
        console.error("Could not load brokenImage:", brokenUrl);
        // cache item will contain empty image, this should be OK for default
      };

//Set the source of the image to the brokenUrl, this is actually what kicks off the loading of the broken image
      imageToLoadBrokenUrlOn.image.src = brokenUrl;
    }

/**
     *
     * @param {vis.Image} imageToRedrawWith
     * @private
     */
  }, {
    key: "_redrawWithImage",
    value: function _redrawWithImage(imageToRedrawWith) {
      if (this.callback) {
        this.callback(imageToRedrawWith);
      }
    }

/**
     * @param {string} url          Url of the image
     * @param {string} brokenUrl    Url of an image to use if the url image is not found
     * @returns {Image} img          The image object
     */
  }, {
    key: "load",
    value: function load(url, brokenUrl) {
      var _this = this;
      //Try and get the image from the cache, if successful then return the cached image
      var cachedImage = this.images[url];
      if (cachedImage) return cachedImage;

//Create a new image
      var img = new CachedImage();

// Need to add to cache here, otherwise final return will spawn different copies of the same image,
      // Also, there will be multiple loads of the same image.
      this.images[url] = img;

//Subscribe to the event that is raised if the image loads successfully
      img.image.onload = function () {
        // Properly init the cached item and then request a redraw
        _this._fixImageCoordinates(img.image);
        img.init();
        _this._redrawWithImage(img);
      };

//Subscribe to the event that is raised if the image fails to load
      img.image.onerror = function () {
        console.error("Could not load image:", url);
        //Try and load the image specified by the brokenUrl using
        _this._tryloadBrokenUrl(url, brokenUrl, img);
      };

//Set the source of the image to the url, this is what actually kicks off the loading of the image
      img.image.src = url;

//Return the new image
      return img;
    }

/**
     * IE11 fix -- thanks dponch!
     *
     * Local helper function
     *
     * @param {vis.Image} imageToCache
     * @private
     */
  }, {
    key: "_fixImageCoordinates",
    value: function _fixImageCoordinates(imageToCache) {
      if (imageToCache.width === 0) {
        document.body.appendChild(imageToCache);
        imageToCache.width = imageToCache.offsetWidth;
        imageToCache.height = imageToCache.offsetHeight;
        document.body.removeChild(imageToCache);
      }
    }
  }]);
  return Images;
}();

var mapExports = {};
var map$2 = {
  get exports(){ return mapExports; },
  set exports(v){ mapExports = v; },
};

var internalMetadataExports = {};
var internalMetadata = {
  get exports(){ return internalMetadataExports; },
  set exports(v){ internalMetadataExports = v; },
};

// FF26- bug: ArrayBuffers are non-extensible, but Object.isExtensible does not report it
var fails$8 = fails$w;

var fails$7 = fails$w;
var isObject$6 = isObject$j;
var classof$2 = classofRaw$2;
var ARRAY_BUFFER_NON_EXTENSIBLE = arrayBufferNonExtensible;

// eslint-disable-next-line es/no-object-isextensible -- safe
var $isExtensible = Object.isExtensible;
var FAILS_ON_PRIMITIVES$1 = fails$7(function () { $isExtensible(1); });

// `Object.isExtensible` method
// https://tc39.es/ecma262/#sec-object.isextensible
var objectIsExtensible = (FAILS_ON_PRIMITIVES$1 || ARRAY_BUFFER_NON_EXTENSIBLE) ? function isExtensible(it) {
  if (!isObject$6(it)) return false;
  if (ARRAY_BUFFER_NON_EXTENSIBLE && classof$2(it) == 'ArrayBuffer') return false;
  return $isExtensible ? $isExtensible(it) : true;
} : $isExtensible;

var fails$6 = fails$w;

var freezing = !fails$6(function () {
  // eslint-disable-next-line es/no-object-isextensible, es/no-object-preventextensions -- required for testing
  return Object.isExtensible(Object.preventExtensions({}));
});

var $$d = _export;
var uncurryThis$4 = functionUncurryThis;
var hiddenKeys = hiddenKeys$6;
var isObject$5 = isObject$j;
var hasOwn$3 = hasOwnProperty_1;
var defineProperty$1 = objectDefineProperty.f;
var getOwnPropertyNamesModule = objectGetOwnPropertyNames;
var getOwnPropertyNamesExternalModule = objectGetOwnPropertyNamesExternal;
var isExtensible$1 = objectIsExtensible;
var uid = uid$4;
var FREEZING$1 = freezing;

var REQUIRED = false;
var METADATA = uid('meta');
var id$1 = 0;

var setMetadata = function (it) {
  defineProperty$1(it, METADATA, { value: {
    objectID: 'O' + id$1++, // object ID
    weakData: {}          // weak collections IDs
  } });
};

var fastKey$1 = function (it, create) {
  // return a primitive with prefix
  if (!isObject$5(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!hasOwn$3(it, METADATA)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible$1(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMetadata(it);
  // return object ID
  } return it[METADATA].objectID;
};

var getWeakData$1 = function (it, create) {
  if (!hasOwn$3(it, METADATA)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible$1(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMetadata(it);
  // return the store of weak collections IDs
  } return it[METADATA].weakData;
};

// add metadata on freeze-family methods calling
var onFreeze = function (it) {
  if (FREEZING$1 && REQUIRED && isExtensible$1(it) && !hasOwn$3(it, METADATA)) setMetadata(it);
  return it;
};

var enable = function () {
  meta$1.enable = function () { /* empty */ };
  REQUIRED = true;
  var getOwnPropertyNames = getOwnPropertyNamesModule.f;
  var splice = uncurryThis$4([].splice);
  var test = {};
  test[METADATA] = 1;

// prevent exposing of metadata key
  if (getOwnPropertyNames(test).length) {
    getOwnPropertyNamesModule.f = function (it) {
      var result = getOwnPropertyNames(it);
      for (var i = 0, length = result.length; i < length; i++) {
        if (result[i] === METADATA) {
          splice(result, i, 1);
          break;
        }
      } return result;
    };

$$d({ target: 'Object', stat: true, forced: true }, {
      getOwnPropertyNames: getOwnPropertyNamesExternalModule.f
    });
  }
};

var meta$1 = internalMetadata.exports = {
  enable: enable,
  fastKey: fastKey$1,
  getWeakData: getWeakData$1,
  onFreeze: onFreeze
};

hiddenKeys[METADATA] = true;

var bind$6 = functionBindContext;
var call$1 = functionCall;
var anObject$3 = anObject$d;
var tryToString$1 = tryToString$6;
var isArrayIteratorMethod = isArrayIteratorMethod$2;
var lengthOfArrayLike$2 = lengthOfArrayLike$b;
var isPrototypeOf$6 = objectIsPrototypeOf;
var getIterator = getIterator$2;
var getIteratorMethod = getIteratorMethod$9;
var iteratorClose = iteratorClose$2;

var $TypeError$3 = TypeError;

var Result = function (stopped, result) {
  this.stopped = stopped;
  this.result = result;
};

var ResultPrototype = Result.prototype;

var iterate$3 = function (iterable, unboundFunction, options) {
  var that = options && options.that;
  var AS_ENTRIES = !!(options && options.AS_ENTRIES);
  var IS_RECORD = !!(options && options.IS_RECORD);
  var IS_ITERATOR = !!(options && options.IS_ITERATOR);
  var INTERRUPTED = !!(options && options.INTERRUPTED);
  var fn = bind$6(unboundFunction, that);
  var iterator, iterFn, index, length, result, next, step;

var stop = function (condition) {
    if (iterator) iteratorClose(iterator, 'normal', condition);
    return new Result(true, condition);
  };

var callFn = function (value) {
    if (AS_ENTRIES) {
      anObject$3(value);
      return INTERRUPTED ? fn(value[0], value[1], stop) : fn(value[0], value[1]);
    } return INTERRUPTED ? fn(value, stop) : fn(value);
  };

if (IS_RECORD) {
    iterator = iterable.iterator;
  } else if (IS_ITERATOR) {
    iterator = iterable;
  } else {
    iterFn = getIteratorMethod(iterable);
    if (!iterFn) throw $TypeError$3(tryToString$1(iterable) + ' is not iterable');
    // optimisation for array iterators
    if (isArrayIteratorMethod(iterFn)) {
      for (index = 0, length = lengthOfArrayLike$2(iterable); length > index; index++) {
        result = callFn(iterable[index]);
        if (result && isPrototypeOf$6(ResultPrototype, result)) return result;
      } return new Result(false);
    }
    iterator = getIterator(iterable, iterFn);
  }

next = IS_RECORD ? iterable.next : iterator.next;
  while (!(step = call$1(next, iterator)).done) {
    try {
      result = callFn(step.value);
    } catch (error) {
      iteratorClose(iterator, 'throw', error);
    }
    if (typeof result == 'object' && result && isPrototypeOf$6(ResultPrototype, result)) return result;
  } return new Result(false);
};

var isPrototypeOf$5 = objectIsPrototypeOf;

var $TypeError$2 = TypeError;

var anInstance$3 = function (it, Prototype) {
  if (isPrototypeOf$5(Prototype, it)) return it;
  throw $TypeError$2('Incorrect invocation');
};

var $$c = _export;
var global$4 = global$l;
var InternalMetadataModule$1 = internalMetadataExports;
var fails$5 = fails$w;
var createNonEnumerableProperty = createNonEnumerableProperty$6;
var iterate$2 = iterate$3;
var anInstance$2 = anInstance$3;
var isCallable = isCallable$i;
var isObject$4 = isObject$j;
var setToStringTag = setToStringTag$6;
var defineProperty = objectDefineProperty.f;
var forEach = arrayIteration.forEach;
var DESCRIPTORS$2 = descriptors;
var InternalStateModule$2 = internalState;

var setInternalState$2 = InternalStateModule$2.set;
var internalStateGetterFor$2 = InternalStateModule$2.getterFor;

var collection$3 = function (CONSTRUCTOR_NAME, wrapper, common) {
  var IS_MAP = CONSTRUCTOR_NAME.indexOf('Map') !== -1;
  var IS_WEAK = CONSTRUCTOR_NAME.indexOf('Weak') !== -1;
  var ADDER = IS_MAP ? 'set' : 'add';
  var NativeConstructor = global$4[CONSTRUCTOR_NAME];
  var NativePrototype = NativeConstructor && NativeConstructor.prototype;
  var exported = {};
  var Constructor;

if (!DESCRIPTORS$2 || !isCallable(NativeConstructor)
    || !(IS_WEAK || NativePrototype.forEach && !fails$5(function () { new NativeConstructor().entries().next(); }))
  ) {
    // create collection constructor
    Constructor = common.getConstructor(wrapper, CONSTRUCTOR_NAME, IS_MAP, ADDER);
    InternalMetadataModule$1.enable();
  } else {
    Constructor = wrapper(function (target, iterable) {
      setInternalState$2(anInstance$2(target, Prototype), {
        type: CONSTRUCTOR_NAME,
        collection: new NativeConstructor()
      });
      if (iterable != undefined) iterate$2(iterable, target[ADDER], { that: target, AS_ENTRIES: IS_MAP });
    });

var Prototype = Constructor.prototype;

var getInternalState = internalStateGetterFor$2(CONSTRUCTOR_NAME);

forEach(['add', 'clear', 'delete', 'forEach', 'get', 'has', 'set', 'keys', 'values', 'entries'], function (KEY) {
      var IS_ADDER = KEY == 'add' || KEY == 'set';
      if (KEY in NativePrototype && !(IS_WEAK && KEY == 'clear')) {
        createNonEnumerableProperty(Prototype, KEY, function (a, b) {
          var collection = getInternalState(this).collection;
          if (!IS_ADDER && IS_WEAK && !isObject$4(a)) return KEY == 'get' ? undefined : false;
          var result = collection[KEY](a === 0 ? 0 : a, b);
          return IS_ADDER ? this : result;
        });
      }
    });

IS_WEAK || defineProperty(Prototype, 'size', {
      configurable: true,
      get: function () {
        return getInternalState(this).collection.size;
      }
    });
  }

setToStringTag(Constructor, CONSTRUCTOR_NAME, false, true);

exported[CONSTRUCTOR_NAME] = Constructor;
  $$c({ global: true, forced: true }, exported);

if (!IS_WEAK) common.setStrong(Constructor, CONSTRUCTOR_NAME, IS_MAP);

return Constructor;
};

var defineBuiltIn = defineBuiltIn$5;

var defineBuiltIns$3 = function (target, src, options) {
  for (var key in src) {
    if (options && options.unsafe && target[key]) target[key] = src[key];
    else defineBuiltIn(target, key, src[key], options);
  } return target;
};

var getBuiltIn$1 = getBuiltIn$c;
var defineBuiltInAccessor$1 = defineBuiltInAccessor$3;
var wellKnownSymbol = wellKnownSymbol$l;
var DESCRIPTORS$1 = descriptors;

var SPECIES = wellKnownSymbol('species');

var setSpecies$1 = function (CONSTRUCTOR_NAME) {
  var Constructor = getBuiltIn$1(CONSTRUCTOR_NAME);

if (DESCRIPTORS$1 && Constructor && !Constructor[SPECIES]) {
    defineBuiltInAccessor$1(Constructor, SPECIES, {
      configurable: true,
      get: function () { return this; }
    });
  }
};

var create$5 = objectCreate;
var defineBuiltInAccessor = defineBuiltInAccessor$3;
var defineBuiltIns$2 = defineBuiltIns$3;
var bind$5 = functionBindContext;
var anInstance$1 = anInstance$3;
var isNullOrUndefined$1 = isNullOrUndefined$5;
var iterate$1 = iterate$3;
var defineIterator = iteratorDefine;
var createIterResultObject = createIterResultObject$3;
var setSpecies = setSpecies$1;
var DESCRIPTORS = descriptors;
var fastKey = internalMetadataExports.fastKey;
var InternalStateModule$1 = internalState;

var setInternalState$1 = InternalStateModule$1.set;
var internalStateGetterFor$1 = InternalStateModule$1.getterFor;

var Prototype = Constructor.prototype;

var getInternalState = internalStateGetterFor$1(CONSTRUCTOR_NAME);

var getEntry = function (that, key) {
      var state = getInternalState(that);
      // fast case
      var index = fastKey(key);
      var entry;
      if (index !== 'F') return state.index[index];
      // frozen object case
      for (entry = state.first; entry; entry = entry.next) {
        if (entry.key == key) return entry;
      }
    };

defineBuiltIns$2(Prototype, {
      // `{ Map, Set }.prototype.clear()` methods
      // https://tc39.es/ecma262/#sec-map.prototype.clear
      // https://tc39.es/ecma262/#sec-set.prototype.clear
      clear: function clear() {
        var that = this;
        var state = getInternalState(that);
        var data = state.index;
        var entry = state.first;
        while (entry) {
          entry.removed = true;
          if (entry.previous) entry.previous = entry.previous.next = undefined;
          delete data[entry.index];
          entry = entry.next;
        }
        state.first = state.last = undefined;
        if (DESCRIPTORS) state.size = 0;
        else that.size = 0;
      },
      // `{ Map, Set }.prototype.delete(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.delete
      // https://tc39.es/ecma262/#sec-set.prototype.delete
      'delete': function (key) {
        var that = this;
        var state = getInternalState(that);
        var entry = getEntry(that, key);
        if (entry) {
          var next = entry.next;
          var prev = entry.previous;
          delete state.index[entry.index];
          entry.removed = true;
          if (prev) prev.next = next;
          if (next) next.previous = prev;
          if (state.first == entry) state.first = next;
          if (state.last == entry) state.last = prev;
          if (DESCRIPTORS) state.size--;
          else that.size--;
        } return !!entry;
      },
      // `{ Map, Set }.prototype.forEach(callbackfn, thisArg = undefined)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.foreach
      // https://tc39.es/ecma262/#sec-set.prototype.foreach
      forEach: function forEach(callbackfn /* , that = undefined */) {
        var state = getInternalState(this);
        var boundFunction = bind$5(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
        var entry;
        while (entry = entry ? entry.next : state.first) {
          boundFunction(entry.value, entry.key, this);
          // revert to the last existing entry
          while (entry && entry.removed) entry = entry.previous;
        }
      },
      // `{ Map, Set}.prototype.has(key)` methods
      // https://tc39.es/ecma262/#sec-map.prototype.has
      // https://tc39.es/ecma262/#sec-set.prototype.has
      has: function has(key) {
        return !!getEntry(this, key);
      }
    });

defineBuiltIns$2(Prototype, IS_MAP ? {
      // `Map.prototype.get(key)` method
      // https://tc39.es/ecma262/#sec-map.prototype.get
      get: function get(key) {
        var entry = getEntry(this, key);
        return entry && entry.value;
      },
      // `Map.prototype.set(key, value)` method
      // https://tc39.es/ecma262/#sec-map.prototype.set
      set: function set(key, value) {
        return define(this, key === 0 ? 0 : key, value);
      }
    } : {
      // `Set.prototype.add(value)` method
      // https://tc39.es/ecma262/#sec-set.prototype.add
      add: function add(value) {
        return define(this, value = value === 0 ? 0 : value, value);
      }
    });
    if (DESCRIPTORS) defineBuiltInAccessor(Prototype, 'size', {
      configurable: true,
      get: function () {
        return getInternalState(this).size;
      }
    });
    return Constructor;
  },
  setStrong: function (Constructor, CONSTRUCTOR_NAME, IS_MAP) {
    var ITERATOR_NAME = CONSTRUCTOR_NAME + ' Iterator';
    var getInternalCollectionState = internalStateGetterFor$1(CONSTRUCTOR_NAME);
    var getInternalIteratorState = internalStateGetterFor$1(ITERATOR_NAME);
    // `{ Map, Set }.prototype.{ keys, values, entries, @@iterator }()` methods
    // https://tc39.es/ecma262/#sec-map.prototype.entries
    // https://tc39.es/ecma262/#sec-map.prototype.keys
    // https://tc39.es/ecma262/#sec-map.prototype.values
    // https://tc39.es/ecma262/#sec-map.prototype-@@iterator
    // https://tc39.es/ecma262/#sec-set.prototype.entries
    // https://tc39.es/ecma262/#sec-set.prototype.keys
    // https://tc39.es/ecma262/#sec-set.prototype.values
    // https://tc39.es/ecma262/#sec-set.prototype-@@iterator
    defineIterator(Constructor, CONSTRUCTOR_NAME, function (iterated, kind) {
      setInternalState$1(this, {
        type: ITERATOR_NAME,
        target: iterated,
        state: getInternalCollectionState(iterated),
        kind: kind,
        last: undefined
      });
    }, function () {
      var state = getInternalIteratorState(this);
      var kind = state.kind;
      var entry = state.last;
      // revert to the last existing entry
      while (entry && entry.removed) entry = entry.previous;
      // get next entry
      if (!state.target || !(state.last = entry = entry ? entry.next : state.state.first)) {
        // or finish the iteration
        state.target = undefined;
        return createIterResultObject(undefined, true);
      }
      // return step by kind
      if (kind == 'keys') return createIterResultObject(entry.key, false);
      if (kind == 'values') return createIterResultObject(entry.value, false);
      return createIterResultObject([entry.key, entry.value], false);
    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);

// `{ Map, Set }.prototype[@@species]` accessors
    // https://tc39.es/ecma262/#sec-get-map-@@species
    // https://tc39.es/ecma262/#sec-get-set-@@species
    setSpecies(CONSTRUCTOR_NAME);
  }
};

var collection$2 = collection$3;
var collectionStrong$1 = collectionStrong$2;

// `Map` constructor
// https://tc39.es/ecma262/#sec-map-objects
collection$2('Map', function (init) {
  return function Map() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong$1);

var path$b = path$y;

var map$1$1 = path$b.Map;

var parent$r = map$1$1;

var map$7 = parent$r;

(function (module) {
	module.exports = map$7;
} (map$2));

var _Map = /*@__PURE__*/getDefaultExportFromCjs$1(mapExports);

/**
 * This class can store groups and options specific for groups.
 */
var Groups = /*#__PURE__*/function () {
  /**
   * @ignore
   */
  function Groups() {
    _classCallCheck(this, Groups);
    this.clear();
    this._defaultIndex = 0;
    this._groupIndex = 0;
    this._defaultGroups = [{
      border: "#2B7CE9",
      background: "#97C2FC",
      highlight: {
        border: "#2B7CE9",
        background: "#D2E5FF"
      },
      hover: {
        border: "#2B7CE9",
        background: "#D2E5FF"
      }
    },
    // 0: blue
    {
      border: "#FFA500",
      background: "#FFFF00",
      highlight: {
        border: "#FFA500",
        background: "#FFFFA3"
      },
      hover: {
        border: "#FFA500",
        background: "#FFFFA3"
      }
    },
    // 1: yellow
    {
      border: "#FA0A10",
      background: "#FB7E81",
      highlight: {
        border: "#FA0A10",
        background: "#FFAFB1"
      },
      hover: {
        border: "#FA0A10",
        background: "#FFAFB1"
      }
    },
    // 2: red
    {
      border: "#41A906",
      background: "#7BE141",
      highlight: {
        border: "#41A906",
        background: "#A1EC76"
      },
      hover: {
        border: "#41A906",
        background: "#A1EC76"
      }
    },
    // 3: green
    {
      border: "#E129F0",
      background: "#EB7DF4",
      highlight: {
        border: "#E129F0",
        background: "#F0B3F5"
      },
      hover: {
        border: "#E129F0",
        background: "#F0B3F5"
      }
    },
    // 4: magenta
    {
      border: "#7C29F0",
      background: "#AD85E4",
      highlight: {
        border: "#7C29F0",
        background: "#D3BDF0"
      },
      hover: {
        border: "#7C29F0",
        background: "#D3BDF0"
      }
    },
    // 5: purple
    {
      border: "#C37F00",
      background: "#FFA807",
      highlight: {
        border: "#C37F00",
        background: "#FFCA66"
      },
      hover: {
        border: "#C37F00",
        background: "#FFCA66"
      }
    },
    // 6: orange
    {
      border: "#4220FB",
      background: "#6E6EFD",
      highlight: {
        border: "#4220FB",
        background: "#9B9BFD"
      },
      hover: {
        border: "#4220FB",
        background: "#9B9BFD"
      }
    },
    // 7: darkblue
    {
      border: "#FD5A77",
      background: "#FFC0CB",
      highlight: {
        border: "#FD5A77",
        background: "#FFD1D9"
      },
      hover: {
        border: "#FD5A77",
        background: "#FFD1D9"
      }
    },
    // 8: pink
    {
      border: "#4AD63A",
      background: "#C2FABC",
      highlight: {
        border: "#4AD63A",
        background: "#E6FFE3"
      },
      hover: {
        border: "#4AD63A",
        background: "#E6FFE3"
      }
    },
    // 9: mint

{
      border: "#990000",
      background: "#EE0000",
      highlight: {
        border: "#BB0000",
        background: "#FF3333"
      },
      hover: {
        border: "#BB0000",
        background: "#FF3333"
      }
    },
    // 10:bright red

{
      border: "#FF6000",
      background: "#FF6000",
      highlight: {
        border: "#FF6000",
        background: "#FF6000"
      },
      hover: {
        border: "#FF6000",
        background: "#FF6000"
      }
    },
    // 12: real orange
    {
      border: "#97C2FC",
      background: "#2B7CE9",
      highlight: {
        border: "#D2E5FF",
        background: "#2B7CE9"
      },
      hover: {
        border: "#D2E5FF",
        background: "#2B7CE9"
      }
    },
    // 13: blue
    {
      border: "#399605",
      background: "#255C03",
      highlight: {
        border: "#399605",
        background: "#255C03"
      },
      hover: {
        border: "#399605",
        background: "#255C03"
      }
    },
    // 14: green
    {
      border: "#B70054",
      background: "#FF007E",
      highlight: {
        border: "#B70054",
        background: "#FF007E"
      },
      hover: {
        border: "#B70054",
        background: "#FF007E"
      }
    },
    // 15: magenta
    {
      border: "#AD85E4",
      background: "#7C29F0",
      highlight: {
        border: "#D3BDF0",
        background: "#7C29F0"
      },
      hover: {
        border: "#D3BDF0",
        background: "#7C29F0"
      }
    },
    // 16: purple
    {
      border: "#4557FA",
      background: "#000EA1",
      highlight: {
        border: "#6E6EFD",
        background: "#000EA1"
      },
      hover: {
        border: "#6E6EFD",
        background: "#000EA1"
      }
    },
    // 17: darkblue
    {
      border: "#FFC0CB",
      background: "#FD5A77",
      highlight: {
        border: "#FFD1D9",
        background: "#FD5A77"
      },
      hover: {
        border: "#FFD1D9",
        background: "#FD5A77"
      }
    },
    // 18: pink
    {
      border: "#C2FABC",
      background: "#74D66A",
      highlight: {
        border: "#E6FFE3",
        background: "#74D66A"
      },
      hover: {
        border: "#E6FFE3",
        background: "#74D66A"
      }
    },
    // 19: mint

{
      border: "#EE0000",
      background: "#990000",
      highlight: {
        border: "#FF3333",
        background: "#BB0000"
      },
      hover: {
        border: "#FF3333",
        background: "#BB0000"
      }
    } // 20:bright red
    ];

this.options = {};
    this.defaultOptions = {
      useDefaultGroups: true
    };
    _Object$assign(this.options, this.defaultOptions);
  }

/**
   *
   * @param {object} options
   */
  _createClass(Groups, [{
    key: "setOptions",
    value: function setOptions(options) {
      var optionFields = ["useDefaultGroups"];
      if (options !== undefined) {
        for (var groupName in options) {
          if (Object.prototype.hasOwnProperty.call(options, groupName)) {
            if (_indexOfInstanceProperty(optionFields).call(optionFields, groupName) === -1) {
              var group = options[groupName];
              this.add(groupName, group);
            }
          }
        }
      }
    }

/**
     * Clear all groups
     */
  }, {
    key: "clear",
    value: function clear() {
      this._groups = new _Map();
      this._groupNames = [];
    }

/**
     * Get group options of a groupname.
     * If groupname is not found, a new group may be created.
     *
     * @param {*}       groupname     Can be a number, string, Date, etc.
     * @param {boolean} [shouldCreate=true] If true, create a new group
     * @returns {object} The found or created group
     */
  }, {
    key: "get",
    value: function get(groupname) {
      var shouldCreate = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      var group = this._groups.get(groupname);
      if (group === undefined && shouldCreate) {
        if (this.options.useDefaultGroups === false && this._groupNames.length > 0) {
          // create new group
          var index = this._groupIndex % this._groupNames.length;
          ++this._groupIndex;
          group = {};
          group.color = this._groups.get(this._groupNames[index]);
          this._groups.set(groupname, group);
        } else {
          // create new group
          var _index = this._defaultIndex % this._defaultGroups.length;
          this._defaultIndex++;
          group = {};
          group.color = this._defaultGroups[_index];
          this._groups.set(groupname, group);
        }
      }
      return group;
    }

/**
     * Add custom group style.
     *
     * @param {string} groupName - The name of the group, a new group will be
     * created if a group with the same name doesn't exist, otherwise the old
     * groups style will be overwritten.
     * @param {object} style - An object containing borderColor, backgroundColor,
     * etc.
     * @returns {object} The created group object.
     */
  }, {
    key: "add",
    value: function add(groupName, style) {
      // Only push group name once to prevent duplicates which would consume more
      // RAM and also skew the distribution towards more often updated groups,
      // neither of which is desirable.
      if (!this._groups.has(groupName)) {
        this._groupNames.push(groupName);
      }
      this._groups.set(groupName, style);
      return style;
    }
  }]);
  return Groups;
}();

var isNanExports = {};
var isNan$2 = {
  get exports(){ return isNanExports; },
  set exports(v){ isNanExports = v; },
};

var $$b = _export;

// `Number.isNaN` method
// https://tc39.es/ecma262/#sec-number.isnan
$$b({ target: 'Number', stat: true }, {
  isNaN: function isNaN(number) {
    // eslint-disable-next-line no-self-compare -- NaN check
    return number != number;
  }
});

var path$a = path$y;

var isNan$1 = path$a.Number.isNaN;

var parent$q = isNan$1;

var isNan = parent$q;

(function (module) {
	module.exports = isNan;
} (isNan$2));

var _Number$isNaN = /*@__PURE__*/getDefaultExportFromCjs$1(isNanExports);

var _isFiniteExports = {};
var _isFinite$2 = {
  get exports(){ return _isFiniteExports; },
  set exports(v){ _isFiniteExports = v; },
};

var global$3 = global$l;

var globalIsFinite = global$3.isFinite;

// `Number.isFinite` method
// https://tc39.es/ecma262/#sec-number.isfinite
// eslint-disable-next-line es/no-number-isfinite -- safe
var numberIsFinite$1 = Number.isFinite || function isFinite(it) {
  return typeof it == 'number' && globalIsFinite(it);
};

var $$a = _export;
var numberIsFinite = numberIsFinite$1;

// `Number.isFinite` method
// https://tc39.es/ecma262/#sec-number.isfinite
$$a({ target: 'Number', stat: true }, { isFinite: numberIsFinite });

var path$9 = path$y;

var _isFinite$1 = path$9.Number.isFinite;

var parent$p = _isFinite$1;

var _isFinite = parent$p;

(function (module) {
	module.exports = _isFinite;
} (_isFinite$2));

var _Number$isFinite = /*@__PURE__*/getDefaultExportFromCjs$1(_isFiniteExports);

var someExports = {};
var some$3 = {
  get exports(){ return someExports; },
  set exports(v){ someExports = v; },
};

var $$9 = _export;
var $some = arrayIteration.some;
var arrayMethodIsStrict$3 = arrayMethodIsStrict$6;

var STRICT_METHOD$2 = arrayMethodIsStrict$3('some');

// `Array.prototype.some` method
// https://tc39.es/ecma262/#sec-array.prototype.some
$$9({ target: 'Array', proto: true, forced: !STRICT_METHOD$2 }, {
  some: function some(callbackfn /* , thisArg */) {
    return $some(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$4 = entryVirtual$i;

var some$2 = entryVirtual$4('Array').some;

var isPrototypeOf$4 = objectIsPrototypeOf;
var method$4 = some$2;

var ArrayPrototype$4 = Array.prototype;

var some$1 = function (it) {
  var own = it.some;
  return it === ArrayPrototype$4 || (isPrototypeOf$4(ArrayPrototype$4, it) && own === ArrayPrototype$4.some) ? method$4 : own;
};

var parent$o = some$1;

var some = parent$o;

(function (module) {
	module.exports = some;
} (some$3));

var _someInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(someExports);

var _parseFloatExports = {};
var _parseFloat$3 = {
  get exports(){ return _parseFloatExports; },
  set exports(v){ _parseFloatExports = v; },
};

var global$2 = global$l;
var fails$4 = fails$w;
var uncurryThis$3 = functionUncurryThis;
var toString$1 = toString$a;
var trim$6 = stringTrim.trim;
var whitespaces = whitespaces$4;

var charAt = uncurryThis$3(''.charAt);
var $parseFloat$1 = global$2.parseFloat;
var Symbol$1 = global$2.Symbol;
var ITERATOR = Symbol$1 && Symbol$1.iterator;
var FORCED$4 = 1 / $parseFloat$1(whitespaces + '-0') !== -Infinity
  // MS Edge 18- broken with boxed symbols
  || (ITERATOR && !fails$4(function () { $parseFloat$1(Object(ITERATOR)); }));

// `parseFloat` method
// https://tc39.es/ecma262/#sec-parsefloat-string
var numberParseFloat = FORCED$4 ? function parseFloat(string) {
  var trimmedString = trim$6(toString$1(string));
  var result = $parseFloat$1(trimmedString);
  return result === 0 && charAt(trimmedString, 0) == '-' ? -0 : result;
} : $parseFloat$1;

var $$8 = _export;
var $parseFloat = numberParseFloat;

// `parseFloat` method
// https://tc39.es/ecma262/#sec-parsefloat-string
$$8({ global: true, forced: parseFloat != $parseFloat }, {
  parseFloat: $parseFloat
});

var path$8 = path$y;

var _parseFloat$2 = path$8.parseFloat;

var parent$n = _parseFloat$2;

var _parseFloat$1 = parent$n;

(function (module) {
	module.exports = _parseFloat$1;
} (_parseFloat$3));

var _parseFloat = /*@__PURE__*/getDefaultExportFromCjs$1(_parseFloatExports);

var getOwnPropertyNamesExports = {};
var getOwnPropertyNames$3 = {
  get exports(){ return getOwnPropertyNamesExports; },
  set exports(v){ getOwnPropertyNamesExports = v; },
};

var $$7 = _export;
var fails$3 = fails$w;
var getOwnPropertyNames$2 = objectGetOwnPropertyNamesExternal.f;

// eslint-disable-next-line es/no-object-getownpropertynames -- required for testing
var FAILS_ON_PRIMITIVES = fails$3(function () { return !Object.getOwnPropertyNames(1); });

// `Object.getOwnPropertyNames` method
// https://tc39.es/ecma262/#sec-object.getownpropertynames
$$7({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, {
  getOwnPropertyNames: getOwnPropertyNames$2
});

var path$7 = path$y;

var Object$1 = path$7.Object;

var getOwnPropertyNames$1 = function getOwnPropertyNames(it) {
  return Object$1.getOwnPropertyNames(it);
};

var parent$m = getOwnPropertyNames$1;

var getOwnPropertyNames = parent$m;

(function (module) {
	module.exports = getOwnPropertyNames;
} (getOwnPropertyNames$3));

var _Object$getOwnPropertyNames = /*@__PURE__*/getDefaultExportFromCjs$1(getOwnPropertyNamesExports);

/**
 * Helper functions for components
 */

/**
 * Determine values to use for (sub)options of 'chosen'.
 *
 * This option is either a boolean or an object whose values should be examined further.
 * The relevant structures are:
 *
 * - chosen: <boolean value>
 * - chosen: { subOption: <boolean or function> }
 *
 * Where subOption is 'node', 'edge' or 'label'.
 *
 * The intention of this method appears to be to set a specific priority to the options;
 * Since most properties are either bridged or merged into the local options objects, there
 * is not much point in handling them separately.
 * TODO: examine if 'most' in previous sentence can be replaced with 'all'. In that case, we
 *       should be able to get rid of this method.
 *
 * @param {string}  subOption  option within object 'chosen' to consider; either 'node', 'edge' or 'label'
 * @param {object}  pile       array of options objects to consider
 * @returns {boolean | Function}  value for passed subOption of 'chosen' to use
 */
function choosify(subOption, pile) {
  // allowed values for subOption
  var allowed = ["node", "edge", "label"];
  var value = true;
  var chosen = topMost(pile, "chosen");
  if (typeof chosen === "boolean") {
    value = chosen;
  } else if (_typeof(chosen) === "object") {
    if (_indexOfInstanceProperty(allowed).call(allowed, subOption) === -1) {
      throw new Error("choosify: subOption '" + subOption + "' should be one of " + "'" + allowed.join("', '") + "'");
    }
    var chosenEdge = topMost(pile, ["chosen", subOption]);
    if (typeof chosenEdge === "boolean" || typeof chosenEdge === "function") {
      value = chosenEdge;
    }
  }
  return value;
}

/**
 * Check if the point falls within the given rectangle.
 *
 * @param {rect} rect
 * @param {point} point
 * @param {rotationPoint} [rotationPoint] if specified, the rotation that applies to the rectangle.
 * @returns {boolean}  true if point within rectangle, false otherwise
 */
function pointInRect(rect, point, rotationPoint) {
  if (rect.width <= 0 || rect.height <= 0) {
    return false; // early out
  }

if (rotationPoint !== undefined) {
    // Rotate the point the same amount as the rectangle
    var tmp = {
      x: point.x - rotationPoint.x,
      y: point.y - rotationPoint.y
    };
    if (rotationPoint.angle !== 0) {
      // In order to get the coordinates the same, you need to
      // rotate in the reverse direction
      var angle = -rotationPoint.angle;
      var tmp2 = {
        x: Math.cos(angle) * tmp.x - Math.sin(angle) * tmp.y,
        y: Math.sin(angle) * tmp.x + Math.cos(angle) * tmp.y
      };
      point = tmp2;
    } else {
      point = tmp;
    }

// Note that if a rotation is specified, the rectangle coordinates
    // are **not* the full canvas coordinates. They are relative to the
    // rotationPoint. Hence, the point coordinates need not be translated
    // back in this case.
  }

var right = rect.x + rect.width;
  var bottom = rect.y + rect.width;
  return rect.left < point.x && right > point.x && rect.top < point.y && bottom > point.y;
}

/**
 * Check if given value is acceptable as a label text.
 *
 * @param {*} text value to check; can be anything at this point
 * @returns {boolean} true if valid label value, false otherwise
 */
function isValidLabel(text) {
  // Note that this is quite strict: types that *might* be converted to string are disallowed
  return typeof text === "string" && text !== "";
}

/**
 * Returns x, y of self reference circle based on provided angle
 *
 * @param {object} ctx
 * @param {number} angle
 * @param {number} radius
 * @param {VisNode} node
 * @returns {object} x and y coordinates
 */
function getSelfRefCoordinates(ctx, angle, radius, node) {
  var x = node.x;
  var y = node.y;
  if (typeof node.distanceToBorder === "function") {
    //calculating opposite and adjacent
    //distaneToBorder becomes Hypotenuse.
    //Formulas sin(a) = Opposite / Hypotenuse and cos(a) = Adjacent / Hypotenuse
    var toBorderDist = node.distanceToBorder(ctx, angle);
    var yFromNodeCenter = Math.sin(angle) * toBorderDist;
    var xFromNodeCenter = Math.cos(angle) * toBorderDist;
    //xFromNodeCenter is basically x and if xFromNodeCenter equals to the distance to border then it means
    //that y does not need calculation because it is equal node.height / 2 or node.y
    //same thing with yFromNodeCenter and if yFromNodeCenter equals to the distance to border then it means
    //that x is equal node.width / 2 or node.x
    if (xFromNodeCenter === toBorderDist) {
      x += toBorderDist;
      y = node.y;
    } else if (yFromNodeCenter === toBorderDist) {
      x = node.x;
      y -= toBorderDist;
    } else {
      x += xFromNodeCenter;
      y -= yFromNodeCenter;
    }
  } else if (node.shape.width > node.shape.height) {
    x = node.x + node.shape.width * 0.5;
    y = node.y - radius;
  } else {
    x = node.x + radius;
    y = node.y - node.shape.height * 0.5;
  }
  return {
    x: x,
    y: y
  };
}

var valuesExports = {};
var values$3 = {
  get exports(){ return valuesExports; },
  set exports(v){ valuesExports = v; },
};

var entryVirtual$3 = entryVirtual$i;

var values$2 = entryVirtual$3('Array').values;

var parent$l = values$2;

var values$1 = parent$l;

var classof$1 = classof$d;
var hasOwn$2 = hasOwnProperty_1;
var isPrototypeOf$3 = objectIsPrototypeOf;
var method$3 = values$1;

var ArrayPrototype$3 = Array.prototype;

var DOMIterables = {
  DOMTokenList: true,
  NodeList: true
};

var values = function (it) {
  var own = it.values;
  return it === ArrayPrototype$3 || (isPrototypeOf$3(ArrayPrototype$3, it) && own === ArrayPrototype$3.values)
    || hasOwn$2(DOMIterables, classof$1(it)) ? method$3 : own;
};

(function (module) {
	module.exports = values;
} (values$3));

var _valuesInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(valuesExports);

/**
 * Callback to determine text dimensions, using the parent label settings.
 *
 * @callback MeasureText
 * @param {text} text
 * @param {text} mod
 * @returns {object} { width, values} width in pixels and font attributes
 */
/**
 * Helper class for Label which collects results of splitting labels into lines and blocks.
 *
 * @private
 */
var LabelAccumulator = /*#__PURE__*/function () {
  /**
   * @param {MeasureText} measureText
   */
  function LabelAccumulator(measureText) {
    _classCallCheck(this, LabelAccumulator);
    this.measureText = measureText;
    this.current = 0;
    this.width = 0;
    this.height = 0;
    this.lines = [];
  }

/**
   * Append given text to the given line.
   *
   * @param {number}  l    index of line to add to
   * @param {string}  text string to append to line
   * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
   * @private
   */
  _createClass(LabelAccumulator, [{
    key: "_add",
    value: function _add(l, text) {
      var mod = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "normal";
      if (this.lines[l] === undefined) {
        this.lines[l] = {
          width: 0,
          height: 0,
          blocks: []
        };
      }

// We still need to set a block for undefined and empty texts, hence return at this point
      // This is necessary because we don't know at this point if we're at the
      // start of an empty line or not.
      // To compensate, empty blocks are removed in `finalize()`.
      //
      // Empty strings should still have a height
      var tmpText = text;
      if (text === undefined || text === "") tmpText = " ";

// Determine width and get the font properties
      var result = this.measureText(tmpText, mod);
      var block = _Object$assign({}, _valuesInstanceProperty(result));
      block.text = text;
      block.width = result.width;
      block.mod = mod;
      if (text === undefined || text === "") {
        block.width = 0;
      }
      this.lines[l].blocks.push(block);

// Update the line width. We need this for determining if a string goes over max width
      this.lines[l].width += block.width;
    }

/**
     * Returns the width in pixels of the current line.
     *
     * @returns {number}
     */
  }, {
    key: "curWidth",
    value: function curWidth() {
      var line = this.lines[this.current];
      if (line === undefined) return 0;
      return line.width;
    }

/**
     * Add text in block to current line
     *
     * @param {string} text
     * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
     */
  }, {
    key: "append",
    value: function append(text) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "normal";
      this._add(this.current, text, mod);
    }

/**
     * Add text in block to current line and start a new line
     *
     * @param {string} text
     * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
     */
  }, {
    key: "newLine",
    value: function newLine(text) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "normal";
      this._add(this.current, text, mod);
      this.current++;
    }

/**
     * Determine and set the heights of all the lines currently contained in this instance
     *
     * Note that width has already been set.
     *
     * @private
     */
  }, {
    key: "determineLineHeights",
    value: function determineLineHeights() {
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];

// Looking for max height of blocks in line
        var height = 0;
        if (line.blocks !== undefined) {
          // Can happen if text contains e.g. '\n '
          for (var l = 0; l < line.blocks.length; l++) {
            var block = line.blocks[l];
            if (height < block.height) {
              height = block.height;
            }
          }
        }
        line.height = height;
      }
    }

/**
     * Determine the full size of the label text, as determined by current lines and blocks
     *
     * @private
     */
  }, {
    key: "determineLabelSize",
    value: function determineLabelSize() {
      var width = 0;
      var height = 0;
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];
        if (line.width > width) {
          width = line.width;
        }
        height += line.height;
      }
      this.width = width;
      this.height = height;
    }

/**
     * Remove all empty blocks and empty lines we don't need
     *
     * This must be done after the width/height determination,
     * so that these are set properly for processing here.
     *
     * @returns {Array<Line>} Lines with empty blocks (and some empty lines) removed
     * @private
     */
  }, {
    key: "removeEmptyBlocks",
    value: function removeEmptyBlocks() {
      var tmpLines = [];
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];

// Note: an empty line in between text has width zero but is still relevant to layout.
        // So we can't use width for testing empty line here
        if (line.blocks.length === 0) continue;

// Discard final empty line always
        if (k === this.lines.length - 1) {
          if (line.width === 0) continue;
        }
        var tmpLine = {};
        _Object$assign(tmpLine, line);
        tmpLine.blocks = [];
        var firstEmptyBlock = void 0;
        var tmpBlocks = [];
        for (var l = 0; l < line.blocks.length; l++) {
          var block = line.blocks[l];
          if (block.width !== 0) {
            tmpBlocks.push(block);
          } else {
            if (firstEmptyBlock === undefined) {
              firstEmptyBlock = block;
            }
          }
        }

// Ensure that there is *some* text present
        if (tmpBlocks.length === 0 && firstEmptyBlock !== undefined) {
          tmpBlocks.push(firstEmptyBlock);
        }
        tmpLine.blocks = tmpBlocks;
        tmpLines.push(tmpLine);
      }
      return tmpLines;
    }

/**
     * Set the sizes for all lines and the whole thing.
     *
     * @returns {{width: (number|*), height: (number|*), lines: Array}}
     */
  }, {
    key: "finalize",
    value: function finalize() {
      //console.log(JSON.stringify(this.lines, null, 2));

this.determineLineHeights();
      this.determineLabelSize();
      var tmpLines = this.removeEmptyBlocks();

// Return a simple hash object for further processing.
      return {
        width: this.width,
        height: this.height,
        lines: tmpLines
      };
    }
  }]);
  return LabelAccumulator;
}();

// Hash of prepared regexp's for tags
var tagPattern = {
  // HTML
  "<b>": /<b>/,
  "<i>": /<i>/,
  "<code>": /<code>/,
  "</b>": /<\/b>/,
  "</i>": /<\/i>/,
  "</code>": /<\/code>/,
  // Markdown
  "*": /\*/,
  // bold
  _: /_/,
  // ital
  "`": /`/,
  // mono
  afterBold: /[^*]/,
  afterItal: /[^_]/,
  afterMono: /[^`]/
};

/**
 * Internal helper class for parsing the markup tags for HTML and Markdown.
 *
 * NOTE: Sequences of tabs and spaces are reduced to single space.
 *       Scan usage of `this.spacing` within method
 */
var MarkupAccumulator = /*#__PURE__*/function () {
  /**
   * Create an instance
   *
   * @param {string} text  text to parse for markup
   */
  function MarkupAccumulator(text) {
    _classCallCheck(this, MarkupAccumulator);
    this.text = text;
    this.bold = false;
    this.ital = false;
    this.mono = false;
    this.spacing = false;
    this.position = 0;
    this.buffer = "";
    this.modStack = [];
    this.blocks = [];
  }

/**
   * Return the mod label currently on the top of the stack
   *
   * @returns {string}  label of topmost mod
   * @private
   */
  _createClass(MarkupAccumulator, [{
    key: "mod",
    value: function mod() {
      return this.modStack.length === 0 ? "normal" : this.modStack[0];
    }

/**
     * Return the mod label currently active
     *
     * @returns {string}  label of active mod
     * @private
     */
  }, {
    key: "modName",
    value: function modName() {
      if (this.modStack.length === 0) return "normal";else if (this.modStack[0] === "mono") return "mono";else {
        if (this.bold && this.ital) {
          return "boldital";
        } else if (this.bold) {
          return "bold";
        } else if (this.ital) {
          return "ital";
        }
      }
    }

/**
     * @private
     */
  }, {
    key: "emitBlock",
    value: function emitBlock() {
      if (this.spacing) {
        this.add(" ");
        this.spacing = false;
      }
      if (this.buffer.length > 0) {
        this.blocks.push({
          text: this.buffer,
          mod: this.modName()
        });
        this.buffer = "";
      }
    }

/**
     * Output text to buffer
     *
     * @param {string} text  text to add
     * @private
     */
  }, {
    key: "add",
    value: function add(text) {
      if (text === " ") {
        this.spacing = true;
      }
      if (this.spacing) {
        this.buffer += " ";
        this.spacing = false;
      }
      if (text != " ") {
        this.buffer += text;
      }
    }

/**
     * Handle parsing of whitespace
     *
     * @param {string} ch  the character to check
     * @returns {boolean} true if the character was processed as whitespace, false otherwise
     */
  }, {
    key: "parseWS",
    value: function parseWS(ch) {
      if (/[ \t]/.test(ch)) {
        if (!this.mono) {
          this.spacing = true;
        } else {
          this.add(ch);
        }
        return true;
      }
      return false;
    }

/**
     * @param {string} tagName  label for block type to set
     * @private
     */
  }, {
    key: "setTag",
    value: function setTag(tagName) {
      this.emitBlock();
      this[tagName] = true;
      this.modStack.unshift(tagName);
    }

/**
     * @param {string} tagName  label for block type to unset
     * @private
     */
  }, {
    key: "unsetTag",
    value: function unsetTag(tagName) {
      this.emitBlock();
      this[tagName] = false;
      this.modStack.shift();
    }

/**
     * @param {string} tagName label for block type we are currently processing
     * @param {string|RegExp} tag string to match in text
     * @returns {boolean} true if the tag was processed, false otherwise
     */
  }, {
    key: "parseStartTag",
    value: function parseStartTag(tagName, tag) {
      // Note: if 'mono' passed as tagName, there is a double check here. This is OK
      if (!this.mono && !this[tagName] && this.match(tag)) {
        this.setTag(tagName);
        return true;
      }
      return false;
    }

/**
     * @param {string|RegExp} tag
     * @param {number} [advance=true] if set, advance current position in text
     * @returns {boolean} true if match at given position, false otherwise
     * @private
     */
  }, {
    key: "match",
    value: function match(tag) {
      var advance = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      var _this$prepareRegExp = this.prepareRegExp(tag),
        _this$prepareRegExp2 = _slicedToArray(_this$prepareRegExp, 2),
        regExp = _this$prepareRegExp2[0],
        length = _this$prepareRegExp2[1];
      var matched = regExp.test(this.text.substr(this.position, length));
      if (matched && advance) {
        this.position += length - 1;
      }
      return matched;
    }

/**
     * @param {string} tagName label for block type we are currently processing
     * @param {string|RegExp} tag string to match in text
     * @param {RegExp} [nextTag] regular expression to match for characters *following* the current tag
     * @returns {boolean} true if the tag was processed, false otherwise
     */
  }, {
    key: "parseEndTag",
    value: function parseEndTag(tagName, tag, nextTag) {
      var checkTag = this.mod() === tagName;
      if (tagName === "mono") {
        // special handling for 'mono'
        checkTag = checkTag && this.mono;
      } else {
        checkTag = checkTag && !this.mono;
      }
      if (checkTag && this.match(tag)) {
        if (nextTag !== undefined) {
          // Purpose of the following match is to prevent a direct unset/set of a given tag
          // E.g. '*bold **still bold*' => '*bold still bold*'
          if (this.position === this.text.length - 1 || this.match(nextTag, false)) {
            this.unsetTag(tagName);
          }
        } else {
          this.unsetTag(tagName);
        }
        return true;
      }
      return false;
    }

/**
     * @param {string|RegExp} tag  string to match in text
     * @param {value} value  string to replace tag with, if found at current position
     * @returns {boolean} true if the tag was processed, false otherwise
     */
  }, {
    key: "replace",
    value: function replace(tag, value) {
      if (this.match(tag)) {
        this.add(value);
        this.position += length - 1;
        return true;
      }
      return false;
    }

/**
     * Create a regular expression for the tag if it isn't already one.
     *
     * The return value is an array `[RegExp, number]`, with exactly two value, where:
     *  - RegExp is the regular expression to use
     *  - number is the lenth of the input string to match
     *
     * @param {string|RegExp} tag  string to match in text
     * @returns {Array}  regular expression to use and length of input string to match
     * @private
     */
  }, {
    key: "prepareRegExp",
    value: function prepareRegExp(tag) {
      var length;
      var regExp;
      if (tag instanceof RegExp) {
        regExp = tag;
        length = 1; // ASSUMPTION: regexp only tests one character
      } else {
        // use prepared regexp if present
        var prepared = tagPattern[tag];
        if (prepared !== undefined) {
          regExp = prepared;
        } else {
          regExp = new RegExp(tag);
        }
        length = tag.length;
      }
      return [regExp, length];
    }
  }]);
  return MarkupAccumulator;
}();
/**
 * Helper class for Label which explodes the label text into lines and blocks within lines
 *
 * @private
 */
var LabelSplitter = /*#__PURE__*/function () {
  /**
   * @param {CanvasRenderingContext2D} ctx Canvas rendering context
   * @param {Label} parent reference to the Label instance using current instance
   * @param {boolean} selected
   * @param {boolean} hover
   */
  function LabelSplitter(ctx, parent, selected, hover) {
    var _this = this;
    _classCallCheck(this, LabelSplitter);
    this.ctx = ctx;
    this.parent = parent;
    this.selected = selected;
    this.hover = hover;

/**
     * Callback to determine text width; passed to LabelAccumulator instance
     *
     * @param  {string} text string to determine width of
     * @param  {string} mod  font type to use for this text
     * @returns {object} { width, values} width in pixels and font attributes
     */
    var textWidth = function textWidth(text, mod) {
      if (text === undefined) return 0;

// TODO: This can be done more efficiently with caching
      // This will set the ctx.font correctly, depending on selected/hover and mod - so that ctx.measureText() will be accurate.
      var values = _this.parent.getFormattingValues(ctx, selected, hover, mod);
      var width = 0;
      if (text !== "") {
        var measure = _this.ctx.measureText(text);
        width = measure.width;
      }
      return {
        width: width,
        values: values
      };
    };
    this.lines = new LabelAccumulator(textWidth);
  }

/**
   * Split passed text of a label into lines and blocks.
   *
   * # NOTE
   *
   * The handling of spacing is option dependent:
   *
   * - if `font.multi : false`, all spaces are retained
   * - if `font.multi : true`, every sequence of spaces is compressed to a single space
   *
   * This might not be the best way to do it, but this is as it has been working till now.
   * In order not to break existing functionality, for the time being this behaviour will
   * be retained in any code changes.
   *
   * @param {string} text  text to split
   * @returns {Array<line>}
   */
  _createClass(LabelSplitter, [{
    key: "process",
    value: function process(text) {
      if (!isValidLabel(text)) {
        return this.lines.finalize();
      }
      var font = this.parent.fontOptions;

// Normalize the end-of-line's to a single representation - order important
      text = text.replace(/\r\n/g, "\n"); // Dos EOL's
      text = text.replace(/\r/g, "\n"); // Mac EOL's

// Note that at this point, there can be no \r's in the text.
      // This is used later on splitStringIntoLines() to split multifont texts.

var nlLines = String(text).split("\n");
      var lineCount = nlLines.length;
      if (font.multi) {
        // Multi-font case: styling tags active
        for (var i = 0; i < lineCount; i++) {
          var blocks = this.splitBlocks(nlLines[i], font.multi);
          // Post: Sequences of tabs and spaces are reduced to single space

if (blocks === undefined) continue;
          if (blocks.length === 0) {
            this.lines.newLine("");
            continue;
          }
          if (font.maxWdt > 0) {
            // widthConstraint.maximum defined
            //console.log('Running widthConstraint multi, max: ' + this.fontOptions.maxWdt);
            for (var j = 0; j < blocks.length; j++) {
              var mod = blocks[j].mod;
              var _text = blocks[j].text;
              this.splitStringIntoLines(_text, mod, true);
            }
          } else {
            // widthConstraint.maximum NOT defined
            for (var _j = 0; _j < blocks.length; _j++) {
              var _mod = blocks[_j].mod;
              var _text2 = blocks[_j].text;
              this.lines.append(_text2, _mod);
            }
          }
          this.lines.newLine();
        }
      } else {
        // Single-font case
        if (font.maxWdt > 0) {
          // widthConstraint.maximum defined
          // console.log('Running widthConstraint normal, max: ' + this.fontOptions.maxWdt);
          for (var _i = 0; _i < lineCount; _i++) {
            this.splitStringIntoLines(nlLines[_i]);
          }
        } else {
          // widthConstraint.maximum NOT defined
          for (var _i2 = 0; _i2 < lineCount; _i2++) {
            this.lines.newLine(nlLines[_i2]);
          }
        }
      }
      return this.lines.finalize();
    }

/**
     * normalize the markup system
     *
     * @param {boolean|'md'|'markdown'|'html'} markupSystem
     * @returns {string}
     */
  }, {
    key: "decodeMarkupSystem",
    value: function decodeMarkupSystem(markupSystem) {
      var system = "none";
      if (markupSystem === "markdown" || markupSystem === "md") {
        system = "markdown";
      } else if (markupSystem === true || markupSystem === "html") {
        system = "html";
      }
      return system;
    }

/**
     *
     * @param {string} text
     * @returns {Array}
     */
  }, {
    key: "splitHtmlBlocks",
    value: function splitHtmlBlocks(text) {
      var s = new MarkupAccumulator(text);
      var parseEntities = function parseEntities(ch) {
        if (/&/.test(ch)) {
          var parsed = s.replace(s.text, "&lt;", "<") || s.replace(s.text, "&amp;", "&");
          if (!parsed) {
            s.add("&");
          }
          return true;
        }
        return false;
      };
      while (s.position < s.text.length) {
        var ch = s.text.charAt(s.position);
        var parsed = s.parseWS(ch) || /</.test(ch) && (s.parseStartTag("bold", "<b>") || s.parseStartTag("ital", "<i>") || s.parseStartTag("mono", "<code>") || s.parseEndTag("bold", "</b>") || s.parseEndTag("ital", "</i>") || s.parseEndTag("mono", "</code>")) || parseEntities(ch);
        if (!parsed) {
          s.add(ch);
        }
        s.position++;
      }
      s.emitBlock();
      return s.blocks;
    }

/**
     *
     * @param {string} text
     * @returns {Array}
     */
  }, {
    key: "splitMarkdownBlocks",
    value: function splitMarkdownBlocks(text) {
      var _this2 = this;
      var s = new MarkupAccumulator(text);
      var beginable = true;
      var parseOverride = function parseOverride(ch) {
        if (/\\/.test(ch)) {
          if (s.position < _this2.text.length + 1) {
            s.position++;
            ch = _this2.text.charAt(s.position);
            if (/ \t/.test(ch)) {
              s.spacing = true;
            } else {
              s.add(ch);
              beginable = false;
            }
          }
          return true;
        }
        return false;
      };
      while (s.position < s.text.length) {
        var ch = s.text.charAt(s.position);
        var parsed = s.parseWS(ch) || parseOverride(ch) || (beginable || s.spacing) && (s.parseStartTag("bold", "*") || s.parseStartTag("ital", "_") || s.parseStartTag("mono", "`")) || s.parseEndTag("bold", "*", "afterBold") || s.parseEndTag("ital", "_", "afterItal") || s.parseEndTag("mono", "`", "afterMono");
        if (!parsed) {
          s.add(ch);
          beginable = false;
        }
        s.position++;
      }
      s.emitBlock();
      return s.blocks;
    }

/**
     * Explodes a piece of text into single-font blocks using a given markup
     *
     * @param {string} text
     * @param {boolean|'md'|'markdown'|'html'} markupSystem
     * @returns {Array.<{text: string, mod: string}>}
     * @private
     */
  }, {
    key: "splitBlocks",
    value: function splitBlocks(text, markupSystem) {
      var system = this.decodeMarkupSystem(markupSystem);
      if (system === "none") {
        return [{
          text: text,
          mod: "normal"
        }];
      } else if (system === "markdown") {
        return this.splitMarkdownBlocks(text);
      } else if (system === "html") {
        return this.splitHtmlBlocks(text);
      }
    }

/**
     * @param {string} text
     * @returns {boolean} true if text length over the current max with
     * @private
     */
  }, {
    key: "overMaxWidth",
    value: function overMaxWidth(text) {
      var width = this.ctx.measureText(text).width;
      return this.lines.curWidth() + width > this.parent.fontOptions.maxWdt;
    }

/**
     * Determine the longest part of the sentence which still fits in the
     * current max width.
     *
     * @param {Array} words  Array of strings signifying a text lines
     * @returns {number}      index of first item in string making string go over max
     * @private
     */
  }, {
    key: "getLongestFit",
    value: function getLongestFit(words) {
      var text = "";
      var w = 0;
      while (w < words.length) {
        var pre = text === "" ? "" : " ";
        var newText = text + pre + words[w];
        if (this.overMaxWidth(newText)) break;
        text = newText;
        w++;
      }
      return w;
    }

/**
     * Determine the longest part of the string which still fits in the
     * current max width.
     *
     * @param {Array} words Array of strings signifying a text lines
     * @returns {number} index of first item in string making string go over max
     */
  }, {
    key: "getLongestFitWord",
    value: function getLongestFitWord(words) {
      var w = 0;
      while (w < words.length) {
        if (this.overMaxWidth(_sliceInstanceProperty(words).call(words, 0, w))) break;
        w++;
      }
      return w;
    }

/**
     * Split the passed text into lines, according to width constraint (if any).
     *
     * The method assumes that the input string is a single line, i.e. without lines break.
     *
     * This method retains spaces, if still present (case `font.multi: false`).
     * A space which falls on an internal line break, will be replaced by a newline.
     * There is no special handling of tabs; these go along with the flow.
     *
     * @param {string} str
     * @param {string} [mod='normal']
     * @param {boolean} [appendLast=false]
     * @private
     */
  }, {
    key: "splitStringIntoLines",
    value: function splitStringIntoLines(str) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "normal";
      var appendLast = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      // Set the canvas context font, based upon the current selected/hover state
      // and the provided mod, so the text measurement performed by getLongestFit
      // will be accurate - and not just use the font of whoever last used the canvas.
      this.parent.getFormattingValues(this.ctx, this.selected, this.hover, mod);

// Still-present spaces are relevant, retain them
      str = str.replace(/^( +)/g, "$1\r");
      str = str.replace(/([^\r][^ ]*)( +)/g, "$1\r$2\r");
      var words = str.split("\r");
      while (words.length > 0) {
        var w = this.getLongestFit(words);
        if (w === 0) {
          // Special case: the first word is already larger than the max width.
          var word = words[0];

// Break the word to the largest part that fits the line
          var x = this.getLongestFitWord(word);
          this.lines.newLine(_sliceInstanceProperty(word).call(word, 0, x), mod);

// Adjust the word, so that the rest will be done next iteration
          words[0] = _sliceInstanceProperty(word).call(word, x);
        } else {
          // skip any space that is replaced by a newline
          var newW = w;
          if (words[w - 1] === " ") {
            w--;
          } else if (words[newW] === " ") {
            newW++;
          }
          var text = _sliceInstanceProperty(words).call(words, 0, w).join("");
          if (w == words.length && appendLast) {
            this.lines.append(text, mod);
          } else {
            this.lines.newLine(text, mod);
          }

// Adjust the word, so that the rest will be done next iteration
          words = _sliceInstanceProperty(words).call(words, newW);
        }
      }
    }
  }]);
  return LabelSplitter;
}();

/**
 * List of special styles for multi-fonts
 *
 * @private
 */
var multiFontStyle = ["bold", "ital", "boldital", "mono"];

/**
 * A Label to be used for Nodes or Edges.
 */
var Label = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {object} options
   * @param {boolean} [edgelabel=false]
   */
  function Label(body, options) {
    var edgelabel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
    _classCallCheck(this, Label);
    this.body = body;
    this.pointToSelf = false;
    this.baseSize = undefined;
    this.fontOptions = {}; // instance variable containing the *instance-local* font options
    this.setOptions(options);
    this.size = {
      top: 0,
      left: 0,
      width: 0,
      height: 0,
      yLine: 0
    };
    this.isEdgeLabel = edgelabel;
  }

/**
   * @param {object} options the options of the parent Node-instance
   */
  _createClass(Label, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.elementOptions = options; // Reference to the options of the parent Node-instance

this.initFontOptions(options.font);
      if (isValidLabel(options.label)) {
        this.labelDirty = true;
      } else {
        // Bad label! Change the option value to prevent bad stuff happening
        options.label = undefined;
      }
      if (options.font !== undefined && options.font !== null) {
        // font options can be deleted at various levels
        if (typeof options.font === "string") {
          this.baseSize = this.fontOptions.size;
        } else if (_typeof(options.font) === "object") {
          var size = options.font.size;
          if (size !== undefined) {
            this.baseSize = size;
          }
        }
      }
    }

/**
     * Init the font Options structure.
     *
     * Member fontOptions serves as an accumulator for the current font options.
     * As such, it needs to be completely separated from the node options.
     *
     * @param {object} newFontOptions the new font options to process
     * @private
     */
  }, {
    key: "initFontOptions",
    value: function initFontOptions(newFontOptions) {
      var _this = this;
      // Prepare the multi-font option objects.
      // These will be filled in propagateFonts(), if required
      forEach$1(multiFontStyle, function (style) {
        _this.fontOptions[style] = {};
      });

// Handle shorthand option, if present
      if (Label.parseFontString(this.fontOptions, newFontOptions)) {
        this.fontOptions.vadjust = 0;
        return;
      }

// Copy over the non-multifont options, if specified
      forEach$1(newFontOptions, function (prop, n) {
        if (prop !== undefined && prop !== null && _typeof(prop) !== "object") {
          _this.fontOptions[n] = prop;
        }
      });
    }

/**
     * If in-variable is a string, parse it as a font specifier.
     *
     * Note that following is not done here and have to be done after the call:
     * - Not all font options are set (vadjust, mod)
     *
     * @param {object} outOptions  out-parameter, object in which to store the parse results (if any)
     * @param {object} inOptions  font options to parse
     * @returns {boolean} true if font parsed as string, false otherwise
     * @static
     */
  }, {
    key: "constrain",
    value:
    /**
     * Set the width and height constraints based on 'nearest' value
     *
     * @param {Array} pile array of option objects to consider
     * @returns {object} the actual constraint values to use
     * @private
     */
    function constrain(pile) {
      // NOTE: constrainWidth and  constrainHeight never set!
      // NOTE: for edge labels, only 'maxWdt' set
      // Node labels can set all the fields
      var fontOptions = {
        constrainWidth: false,
        maxWdt: -1,
        minWdt: -1,
        constrainHeight: false,
        minHgt: -1,
        valign: "middle"
      };
      var widthConstraint = topMost(pile, "widthConstraint");
      if (typeof widthConstraint === "number") {
        fontOptions.maxWdt = Number(widthConstraint);
        fontOptions.minWdt = Number(widthConstraint);
      } else if (_typeof(widthConstraint) === "object") {
        var widthConstraintMaximum = topMost(pile, ["widthConstraint", "maximum"]);
        if (typeof widthConstraintMaximum === "number") {
          fontOptions.maxWdt = Number(widthConstraintMaximum);
        }
        var widthConstraintMinimum = topMost(pile, ["widthConstraint", "minimum"]);
        if (typeof widthConstraintMinimum === "number") {
          fontOptions.minWdt = Number(widthConstraintMinimum);
        }
      }
      var heightConstraint = topMost(pile, "heightConstraint");
      if (typeof heightConstraint === "number") {
        fontOptions.minHgt = Number(heightConstraint);
      } else if (_typeof(heightConstraint) === "object") {
        var heightConstraintMinimum = topMost(pile, ["heightConstraint", "minimum"]);
        if (typeof heightConstraintMinimum === "number") {
          fontOptions.minHgt = Number(heightConstraintMinimum);
        }
        var heightConstraintValign = topMost(pile, ["heightConstraint", "valign"]);
        if (typeof heightConstraintValign === "string") {
          if (heightConstraintValign === "top" || heightConstraintValign === "bottom") {
            fontOptions.valign = heightConstraintValign;
          }
        }
      }
      return fontOptions;
    }

/**
     * Set options and update internal state
     *
     * @param {object} options  options to set
     * @param {Array}  pile     array of option objects to consider for option 'chosen'
     */
  }, {
    key: "update",
    value: function update(options, pile) {
      this.setOptions(options, true);
      this.propagateFonts(pile);
      deepExtend(this.fontOptions, this.constrain(pile));
      this.fontOptions.chooser = choosify("label", pile);
    }

/**
     * When margins are set in an element, adjust sizes is called to remove them
     * from the width/height constraints. This must be done prior to label sizing.
     *
     * @param {{top: number, right: number, bottom: number, left: number}} margins
     */
  }, {
    key: "adjustSizes",
    value: function adjustSizes(margins) {
      var widthBias = margins ? margins.right + margins.left : 0;
      if (this.fontOptions.constrainWidth) {
        this.fontOptions.maxWdt -= widthBias;
        this.fontOptions.minWdt -= widthBias;
      }
      var heightBias = margins ? margins.top + margins.bottom : 0;
      if (this.fontOptions.constrainHeight) {
        this.fontOptions.minHgt -= heightBias;
      }
    }

/////////////////////////////////////////////////////////
    // Methods for handling options piles
    // Eventually, these will be moved to a separate class
    /////////////////////////////////////////////////////////

/**
     * Add the font members of the passed list of option objects to the pile.
     *
     * @param {Pile} dstPile  pile of option objects add to
     * @param {Pile} srcPile  pile of option objects to take font options from
     * @private
     */
  }, {
    key: "addFontOptionsToPile",
    value: function addFontOptionsToPile(dstPile, srcPile) {
      for (var i = 0; i < srcPile.length; ++i) {
        this.addFontToPile(dstPile, srcPile[i]);
      }
    }

/**
     * Add given font option object to the list of objects (the 'pile') to consider for determining
     * multi-font option values.
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {object} options  instance to add to pile
     * @private
     */
  }, {
    key: "addFontToPile",
    value: function addFontToPile(pile, options) {
      if (options === undefined) return;
      if (options.font === undefined || options.font === null) return;
      var item = options.font;
      pile.push(item);
    }

/**
     * Collect all own-property values from the font pile that aren't multi-font option objectss.
     *
     * @param {Pile} pile  pile of option objects to use
     * @returns {object} object with all current own basic font properties
     * @private
     */
  }, {
    key: "getBasicOptions",
    value: function getBasicOptions(pile) {
      var ret = {};

// Scans the whole pile to get all options present
      for (var n = 0; n < pile.length; ++n) {
        var fontOptions = pile[n];

// Convert shorthand if necessary
        var tmpShorthand = {};
        if (Label.parseFontString(tmpShorthand, fontOptions)) {
          fontOptions = tmpShorthand;
        }
        forEach$1(fontOptions, function (opt, name) {
          if (opt === undefined) return; // multi-font option need not be present
          if (Object.prototype.hasOwnProperty.call(ret, name)) return; // Keep first value we encounter

if (_indexOfInstanceProperty(multiFontStyle).call(multiFontStyle, name) !== -1) {
            // Skip multi-font properties but we do need the structure
            ret[name] = {};
          } else {
            ret[name] = opt;
          }
        });
      }
      return ret;
    }

/**
     * Return the value for given option for the given multi-font.
     *
     * All available option objects are trawled in the set order to construct the option values.
     *
     * ---------------------------------------------------------------------
     * ## Traversal of pile for multi-fonts
     *
     * The determination of multi-font option values is a special case, because any values not
     * present in the multi-font options should by definition be taken from the main font options,
     * i.e. from the current 'parent' object of the multi-font option.
     *
     * ### Search order for multi-fonts
     *
     * 'bold' used as example:
     *
     *   - search in option group 'bold' in local properties
     *   - search in main font option group in local properties
     *
     * ---------------------------------------------------------------------
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {MultiFontStyle} multiName sub path for the multi-font
     * @param {string} option  the option to search for, for the given multi-font
     * @returns {string|number} the value for the given option
     * @private
     */
  }, {
    key: "getFontOption",
    value: function getFontOption(pile, multiName, option) {
      var multiFont;

// Search multi font in local properties
      for (var n = 0; n < pile.length; ++n) {
        var fontOptions = pile[n];
        if (Object.prototype.hasOwnProperty.call(fontOptions, multiName)) {
          multiFont = fontOptions[multiName];
          if (multiFont === undefined || multiFont === null) continue;

// Convert shorthand if necessary
          // TODO: inefficient to do this conversion every time; find a better way.
          var tmpShorthand = {};
          if (Label.parseFontString(tmpShorthand, multiFont)) {
            multiFont = tmpShorthand;
          }
          if (Object.prototype.hasOwnProperty.call(multiFont, option)) {
            return multiFont[option];
          }
        }
      }

// Option is not mentioned in the multi font options; take it from the parent font options.
      // These have already been converted with getBasicOptions(), so use the converted values.
      if (Object.prototype.hasOwnProperty.call(this.fontOptions, option)) {
        return this.fontOptions[option];
      }

// A value **must** be found; you should never get here.
      throw new Error("Did not find value for multi-font for property: '" + option + "'");
    }

/**
     * Return all options values for the given multi-font.
     *
     * All available option objects are trawled in the set order to construct the option values.
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {MultiFontStyle} multiName sub path for the mod-font
     * @returns {MultiFontOptions}
     * @private
     */
  }, {
    key: "getFontOptions",
    value: function getFontOptions(pile, multiName) {
      var result = {};
      var optionNames = ["color", "size", "face", "mod", "vadjust"]; // List of allowed options per multi-font

for (var i = 0; i < optionNames.length; ++i) {
        var mod = optionNames[i];
        result[mod] = this.getFontOption(pile, multiName, mod);
      }
      return result;
    }

/////////////////////////////////////////////////////////
    // End methods for handling options piles
    /////////////////////////////////////////////////////////

/**
     * Collapse the font options for the multi-font to single objects, from
     * the chain of option objects passed (the 'pile').
     *
     * @param {Pile} pile  sequence of option objects to consider.
     *                     First item in list assumed to be the newly set options.
     */
  }, {
    key: "propagateFonts",
    value: function propagateFonts(pile) {
      var _this2 = this;
      var fontPile = []; // sequence of font objects to consider, order important

// Note that this.elementOptions is not used here.
      this.addFontOptionsToPile(fontPile, pile);
      this.fontOptions = this.getBasicOptions(fontPile);

// We set multifont values even if multi === false, for consistency (things break otherwise)
      var _loop = function _loop() {
        var mod = multiFontStyle[i];
        var modOptions = _this2.fontOptions[mod];
        var tmpMultiFontOptions = _this2.getFontOptions(fontPile, mod);

// Copy over found values
        forEach$1(tmpMultiFontOptions, function (option, n) {
          modOptions[n] = option;
        });
        modOptions.size = Number(modOptions.size);
        modOptions.vadjust = Number(modOptions.vadjust);
      };
      for (var i = 0; i < multiFontStyle.length; ++i) {
        _loop();
      }
    }

/**
     * Main function. This is called from anything that wants to draw a label.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} [baseline='middle']
     */
  }, {
    key: "draw",
    value: function draw(ctx, x, y, selected, hover) {
      var baseline = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : "middle";
      // if no label, return
      if (this.elementOptions.label === undefined) return;

// check if we have to render the label
      var viewFontSize = this.fontOptions.size * this.body.view.scale;
      if (this.elementOptions.label && viewFontSize < this.elementOptions.scaling.label.drawThreshold - 1) return;

// This ensures that there will not be HUGE letters on screen
      // by setting an upper limit on the visible text size (regardless of zoomLevel)
      if (viewFontSize >= this.elementOptions.scaling.label.maxVisible) {
        viewFontSize = Number(this.elementOptions.scaling.label.maxVisible) / this.body.view.scale;
      }

// update the size cache if required
      this.calculateLabelSize(ctx, selected, hover, x, y, baseline);
      this._drawBackground(ctx);
      this._drawText(ctx, x, this.size.yLine, baseline, viewFontSize);
    }

/**
     * Draws the label background
     *
     * @param {CanvasRenderingContext2D} ctx
     * @private
     */
  }, {
    key: "_drawBackground",
    value: function _drawBackground(ctx) {
      if (this.fontOptions.background !== undefined && this.fontOptions.background !== "none") {
        ctx.fillStyle = this.fontOptions.background;
        var size = this.getSize();
        ctx.fillRect(size.left, size.top, size.width, size.height);
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {string} [baseline='middle']
     * @param {number} viewFontSize
     * @private
     */
  }, {
    key: "_drawText",
    value: function _drawText(ctx, x, y) {
      var baseline = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "middle";
      var viewFontSize = arguments.length > 4 ? arguments[4] : undefined;
      var _this$_setAlignment = this._setAlignment(ctx, x, y, baseline);
      var _this$_setAlignment2 = _slicedToArray(_this$_setAlignment, 2);
      x = _this$_setAlignment2[0];
      y = _this$_setAlignment2[1];
      ctx.textAlign = "left";
      x = x - this.size.width / 2; // Shift label 1/2-distance to the left
      if (this.fontOptions.valign && this.size.height > this.size.labelHeight) {
        if (this.fontOptions.valign === "top") {
          y -= (this.size.height - this.size.labelHeight) / 2;
        }
        if (this.fontOptions.valign === "bottom") {
          y += (this.size.height - this.size.labelHeight) / 2;
        }
      }

// draw the text
      for (var i = 0; i < this.lineCount; i++) {
        var line = this.lines[i];
        if (line && line.blocks) {
          var width = 0;
          if (this.isEdgeLabel || this.fontOptions.align === "center") {
            width += (this.size.width - line.width) / 2;
          } else if (this.fontOptions.align === "right") {
            width += this.size.width - line.width;
          }
          for (var j = 0; j < line.blocks.length; j++) {
            var block = line.blocks[j];
            ctx.font = block.font;
            var _this$_getColor = this._getColor(block.color, viewFontSize, block.strokeColor),
              _this$_getColor2 = _slicedToArray(_this$_getColor, 2),
              fontColor = _this$_getColor2[0],
              strokeColor = _this$_getColor2[1];
            if (block.strokeWidth > 0) {
              ctx.lineWidth = block.strokeWidth;
              ctx.strokeStyle = strokeColor;
              ctx.lineJoin = "round";
            }
            ctx.fillStyle = fontColor;
            if (block.strokeWidth > 0) {
              ctx.strokeText(block.text, x + width, y + block.vadjust);
            }
            ctx.fillText(block.text, x + width, y + block.vadjust);
            width += block.width;
          }
          y += line.height;
        }
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {string} baseline
     * @returns {Array.<number>}
     * @private
     */
  }, {
    key: "_setAlignment",
    value: function _setAlignment(ctx, x, y, baseline) {
      // check for label alignment (for edges)
      // TODO: make alignment for nodes
      if (this.isEdgeLabel && this.fontOptions.align !== "horizontal" && this.pointToSelf === false) {
        x = 0;
        y = 0;
        var lineMargin = 2;
        if (this.fontOptions.align === "top") {
          ctx.textBaseline = "alphabetic";
          y -= 2 * lineMargin; // distance from edge, required because we use alphabetic. Alphabetic has less difference between browsers
        } else if (this.fontOptions.align === "bottom") {
          ctx.textBaseline = "hanging";
          y += 2 * lineMargin; // distance from edge, required because we use hanging. Hanging has less difference between browsers
        } else {
          ctx.textBaseline = "middle";
        }
      } else {
        ctx.textBaseline = baseline;
      }
      return [x, y];
    }

/**
     * fade in when relative scale is between threshold and threshold - 1.
     * If the relative scale would be smaller than threshold -1 the draw function would have returned before coming here.
     *
     * @param {string} color  The font color to use
     * @param {number} viewFontSize
     * @param {string} initialStrokeColor
     * @returns {Array.<string>} An array containing the font color and stroke color
     * @private
     */
  }, {
    key: "_getColor",
    value: function _getColor(color, viewFontSize, initialStrokeColor) {
      var fontColor = color || "#000000";
      var strokeColor = initialStrokeColor || "#ffffff";
      if (viewFontSize <= this.elementOptions.scaling.label.drawThreshold) {
        var opacity = Math.max(0, Math.min(1, 1 - (this.elementOptions.scaling.label.drawThreshold - viewFontSize)));
        fontColor = overrideOpacity(fontColor, opacity);
        strokeColor = overrideOpacity(strokeColor, opacity);
      }
      return [fontColor, strokeColor];
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {{width: number, height: number}}
     */
  }, {
    key: "getTextSize",
    value: function getTextSize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      this._processLabel(ctx, selected, hover);
      return {
        width: this.size.width,
        height: this.size.height,
        lineCount: this.lineCount
      };
    }

/**
     * Get the current dimensions of the label
     *
     * @returns {rect}
     */
  }, {
    key: "getSize",
    value: function getSize() {
      var lineMargin = 2;
      var x = this.size.left; // default values which might be overridden below
      var y = this.size.top - 0.5 * lineMargin; // idem

if (this.isEdgeLabel) {
        var x2 = -this.size.width * 0.5;
        switch (this.fontOptions.align) {
          case "middle":
            x = x2;
            y = -this.size.height * 0.5;
            break;
          case "top":
            x = x2;
            y = -(this.size.height + lineMargin);
            break;
          case "bottom":
            x = x2;
            y = lineMargin;
            break;
        }
      }
      var ret = {
        left: x,
        top: y,
        width: this.size.width,
        height: this.size.height
      };
      return ret;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {number} [x=0]
     * @param {number} [y=0]
     * @param {'middle'|'hanging'} [baseline='middle']
     */
  }, {
    key: "calculateLabelSize",
    value: function calculateLabelSize(ctx, selected, hover) {
      var x = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
      var y = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
      var baseline = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : "middle";
      this._processLabel(ctx, selected, hover);
      this.size.left = x - this.size.width * 0.5;
      this.size.top = y - this.size.height * 0.5;
      this.size.yLine = y + (1 - this.lineCount) * 0.5 * this.fontOptions.size;
      if (baseline === "hanging") {
        this.size.top += 0.5 * this.fontOptions.size;
        this.size.top += 4; // distance from node, required because we use hanging. Hanging has less difference between browsers
        this.size.yLine += 4; // distance from node
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} mod
     * @returns {{color, size, face, mod, vadjust, strokeWidth: *, strokeColor: (*|string|allOptions.edges.font.strokeColor|{string}|allOptions.nodes.font.strokeColor|Array)}}
     */
  }, {
    key: "getFormattingValues",
    value: function getFormattingValues(ctx, selected, hover, mod) {
      var getValue = function getValue(fontOptions, mod, option) {
        if (mod === "normal") {
          if (option === "mod") return "";
          return fontOptions[option];
        }
        if (fontOptions[mod][option] !== undefined) {
          // Grumbl leaving out test on undefined equals false for ""
          return fontOptions[mod][option];
        } else {
          // Take from parent font option
          return fontOptions[option];
        }
      };
      var values = {
        color: getValue(this.fontOptions, mod, "color"),
        size: getValue(this.fontOptions, mod, "size"),
        face: getValue(this.fontOptions, mod, "face"),
        mod: getValue(this.fontOptions, mod, "mod"),
        vadjust: getValue(this.fontOptions, mod, "vadjust"),
        strokeWidth: this.fontOptions.strokeWidth,
        strokeColor: this.fontOptions.strokeColor
      };
      if (selected || hover) {
        if (mod === "normal" && this.fontOptions.chooser === true && this.elementOptions.labelHighlightBold) {
          values.mod = "bold";
        } else {
          if (typeof this.fontOptions.chooser === "function") {
            this.fontOptions.chooser(values, this.elementOptions.id, selected, hover);
          }
        }
      }
      var fontString = "";
      if (values.mod !== undefined && values.mod !== "") {
        // safeguard for undefined - this happened
        fontString += values.mod + " ";
      }
      fontString += values.size + "px " + values.face;
      ctx.font = fontString.replace(/"/g, "");
      values.font = ctx.font;
      values.height = values.size;
      return values;
    }

/**
     *
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {boolean}
     */
  }, {
    key: "differentState",
    value: function differentState(selected, hover) {
      return selected !== this.selectedState || hover !== this.hoverState;
    }

/**
     * This explodes the passed text into lines and determines the width, height and number of lines.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} inText  the text to explode
     * @returns {{width, height, lines}|*}
     * @private
     */
  }, {
    key: "_processLabelText",
    value: function _processLabelText(ctx, selected, hover, inText) {
      var splitter = new LabelSplitter(ctx, this, selected, hover);
      return splitter.process(inText);
    }

/**
     * This explodes the label string into lines and sets the width, height and number of lines.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */
  }, {
    key: "_processLabel",
    value: function _processLabel(ctx, selected, hover) {
      if (this.labelDirty === false && !this.differentState(selected, hover)) return;
      var state = this._processLabelText(ctx, selected, hover, this.elementOptions.label);
      if (this.fontOptions.minWdt > 0 && state.width < this.fontOptions.minWdt) {
        state.width = this.fontOptions.minWdt;
      }
      this.size.labelHeight = state.height;
      if (this.fontOptions.minHgt > 0 && state.height < this.fontOptions.minHgt) {
        state.height = this.fontOptions.minHgt;
      }
      this.lines = state.lines;
      this.lineCount = state.lines.length;
      this.size.width = state.width;
      this.size.height = state.height;
      this.selectedState = selected;
      this.hoverState = hover;
      this.labelDirty = false;
    }

/**
     * Check if this label is visible
     *
     * @returns {boolean} true if this label will be show, false otherwise
     */
  }, {
    key: "visible",
    value: function visible() {
      if (this.size.width === 0 || this.size.height === 0 || this.elementOptions.label === undefined) {
        return false; // nothing to display
      }

var viewFontSize = this.fontOptions.size * this.body.view.scale;
      if (viewFontSize < this.elementOptions.scaling.label.drawThreshold - 1) {
        return false; // Too small or too far away to show
      }

return true;
    }
  }], [{
    key: "parseFontString",
    value: function parseFontString(outOptions, inOptions) {
      if (!inOptions || typeof inOptions !== "string") return false;
      var newOptionsArray = inOptions.split(" ");
      outOptions.size = +newOptionsArray[0].replace("px", "");
      outOptions.face = newOptionsArray[1];
      outOptions.color = newOptionsArray[2];
      return true;
    }
  }]);
  return Label;
}();

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/**
 * The Base class for all Nodes.
 */
var NodeBase = /*#__PURE__*/function () {
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function NodeBase(options, body, labelModule) {
    _classCallCheck(this, NodeBase);
    this.body = body;
    this.labelModule = labelModule;
    this.setOptions(options);
    this.top = undefined;
    this.left = undefined;
    this.height = undefined;
    this.width = undefined;
    this.radius = undefined;
    this.margin = undefined;
    this.refreshNeeded = true;
    this.boundingBox = {
      top: 0,
      left: 0,
      right: 0,
      bottom: 0
    };
  }

/**
   *
   * @param {object} options
   */
  _createClass(NodeBase, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

/**
     *
     * @param {Label} labelModule
     * @private
     */
  }, {
    key: "_setMargins",
    value: function _setMargins(labelModule) {
      this.margin = {};
      if (this.options.margin) {
        if (_typeof(this.options.margin) == "object") {
          this.margin.top = this.options.margin.top;
          this.margin.right = this.options.margin.right;
          this.margin.bottom = this.options.margin.bottom;
          this.margin.left = this.options.margin.left;
        } else {
          this.margin.top = this.options.margin;
          this.margin.right = this.options.margin;
          this.margin.bottom = this.options.margin;
          this.margin.left = this.options.margin;
        }
      }
      labelModule.adjustSizes(this.margin);
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     * @private
     */
  }, {
    key: "_distanceToBorder",
    value: function _distanceToBorder(ctx, angle) {
      var borderWidth = this.options.borderWidth;
      if (ctx) {
        this.resize(ctx);
      }
      return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "enableShadow",
    value: function enableShadow(ctx, values) {
      if (values.shadow) {
        ctx.shadowColor = values.shadowColor;
        ctx.shadowBlur = values.shadowSize;
        ctx.shadowOffsetX = values.shadowX;
        ctx.shadowOffsetY = values.shadowY;
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "disableShadow",
    value: function disableShadow(ctx, values) {
      if (values.shadow) {
        ctx.shadowColor = "rgba(0,0,0,0)";
        ctx.shadowBlur = 0;
        ctx.shadowOffsetX = 0;
        ctx.shadowOffsetY = 0;
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "enableBorderDashes",
    value: function enableBorderDashes(ctx, values) {
      if (values.borderDashes !== false) {
        if (ctx.setLineDash !== undefined) {
          var dashes = values.borderDashes;
          if (dashes === true) {
            dashes = [5, 15];
          }
          ctx.setLineDash(dashes);
        } else {
          console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
          this.options.shapeProperties.borderDashes = false;
          values.borderDashes = false;
        }
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "disableBorderDashes",
    value: function disableBorderDashes(ctx, values) {
      if (values.borderDashes !== false) {
        if (ctx.setLineDash !== undefined) {
          ctx.setLineDash([0]);
        } else {
          console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
          this.options.shapeProperties.borderDashes = false;
          values.borderDashes = false;
        }
      }
    }

/**
     * Determine if the shape of a node needs to be recalculated.
     *
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {boolean}
     * @protected
     */
  }, {
    key: "needsRefresh",
    value: function needsRefresh(selected, hover) {
      if (this.refreshNeeded === true) {
        // This is probably not the best location to reset this member.
        // However, in the current logic, it is the most convenient one.
        this.refreshNeeded = false;
        return true;
      }
      return this.width === undefined || this.labelModule.differentState(selected, hover);
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "initContextForDraw",
    value: function initContextForDraw(ctx, values) {
      var borderWidth = values.borderWidth / this.body.view.scale;
      ctx.lineWidth = Math.min(this.width, borderWidth);
      ctx.strokeStyle = values.borderColor;
      ctx.fillStyle = values.color;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "performStroke",
    value: function performStroke(ctx, values) {
      var borderWidth = values.borderWidth / this.body.view.scale;

//draw dashed border if enabled, save and restore is required for firefox not to crash on unix.
      ctx.save();
      // if borders are zero width, they will be drawn with width 1 by default. This prevents that
      if (borderWidth > 0) {
        this.enableBorderDashes(ctx, values);
        //draw the border
        ctx.stroke();
        //disable dashed border for other elements
        this.disableBorderDashes(ctx, values);
      }
      ctx.restore();
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     */
  }, {
    key: "performFill",
    value: function performFill(ctx, values) {
      ctx.save();
      ctx.fillStyle = values.color;
      // draw shadow if enabled
      this.enableShadow(ctx, values);
      // draw the background
      _fillInstanceProperty(ctx).call(ctx);
      // disable shadows for other elements.
      this.disableShadow(ctx, values);
      ctx.restore();
      this.performStroke(ctx, values);
    }

/**
     *
     * @param {number} margin
     * @private
     */
  }, {
    key: "_addBoundingBoxMargin",
    value: function _addBoundingBoxMargin(margin) {
      this.boundingBox.left -= margin;
      this.boundingBox.top -= margin;
      this.boundingBox.bottom += margin;
      this.boundingBox.right += margin;
    }

/**
     * Actual implementation of this method call.
     *
     * Doing it like this makes it easier to override
     * in the child classes.
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */
  }, {
    key: "_updateBoundingBox",
    value: function _updateBoundingBox(x, y, ctx, selected, hover) {
      if (ctx !== undefined) {
        this.resize(ctx, selected, hover);
      }
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;
      this.boundingBox.left = this.left;
      this.boundingBox.top = this.top;
      this.boundingBox.bottom = this.top + this.height;
      this.boundingBox.right = this.left + this.width;
    }

/**
     * Default implementation of this method call.
     * This acts as a stub which can be overridden.
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y, ctx, selected, hover) {
      this._updateBoundingBox(x, y, ctx, selected, hover);
    }

/**
     * Determine the dimensions to use for nodes with an internal label
     *
     * Currently, these are: Circle, Ellipse, Database, Box
     * The other nodes have external labels, and will not call this method
     *
     * If there is no label, decent default values are supplied.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} [selected]
     * @param {boolean} [hover]
     * @returns {{width:number, height:number}}
     */
  }, {
    key: "getDimensionsFromLabel",
    value: function getDimensionsFromLabel(ctx, selected, hover) {
      // NOTE: previously 'textSize' was not put in 'this' for Ellipse
      // TODO: examine the consequences.
      this.textSize = this.labelModule.getTextSize(ctx, selected, hover);
      var width = this.textSize.width;
      var height = this.textSize.height;
      var DEFAULT_SIZE = 14;
      if (width === 0) {
        // This happens when there is no label text set
        width = DEFAULT_SIZE; // use a decent default
        height = DEFAULT_SIZE; // if width zero, then height also always zero
      }

return {
        width: width,
        height: height
      };
    }
  }]);
  return NodeBase;
}();

/**
 * A Box Node/Cluster shape.
 *
 * @augments NodeBase
 */
var Box$1 = /*#__PURE__*/function (_NodeBase) {
  _inherits(Box, _NodeBase);
  var _super = _createSuper$s(Box);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Box(options, body, labelModule) {
    var _this;
    _classCallCheck(this, Box);
    _this = _super.call(this, options, body, labelModule);
    _this._setMargins(labelModule);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(Box, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
        this.width = dimensions.width + this.margin.right + this.margin.left;
        this.height = dimensions.height + this.margin.top + this.margin.bottom;
        this.radius = this.width / 2;
      }
    }

/**
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y, ctx, selected, hover) {
      this._updateBoundingBox(x, y, ctx, selected, hover);
      var borderRadius = this.options.shapeProperties.borderRadius; // only effective for box
      this._addBoundingBoxMargin(borderRadius);
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx, angle) {
      if (ctx) {
        this.resize(ctx);
      }
      var borderWidth = this.options.borderWidth;
      return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
    }
  }]);
  return Box;
}(NodeBase);

/**
 * NOTE: This is a bad base class
 *
 * Child classes are:
 *
 *   Image       - uses *only* image methods
 *   Circle      - uses *only* _drawRawCircle
 *   CircleImage - uses all
 *
 * TODO: Refactor, move _drawRawCircle to different module, derive Circle from NodeBase
 *       Rename this to ImageBase
 *       Consolidate common code in Image and CircleImage to base class
 *
 * @augments NodeBase
 */
var CircleImageBase = /*#__PURE__*/function (_NodeBase) {
  _inherits(CircleImageBase, _NodeBase);
  var _super = _createSuper$r(CircleImageBase);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function CircleImageBase(options, body, labelModule) {
    var _this;
    _classCallCheck(this, CircleImageBase);
    _this = _super.call(this, options, body, labelModule);
    _this.labelOffset = 0;
    _this.selected = false;
    return _this;
  }

/**
   *
   * @param {object} options
   * @param {object} [imageObj]
   * @param {object} [imageObjAlt]
   */
  _createClass(CircleImageBase, [{
    key: "setOptions",
    value: function setOptions(options, imageObj, imageObjAlt) {
      this.options = options;
      if (!(imageObj === undefined && imageObjAlt === undefined)) {
        this.setImages(imageObj, imageObjAlt);
      }
    }

/**
     * Set the images for this node.
     *
     * The images can be updated after the initial setting of options;
     * therefore, this method needs to be reentrant.
     *
     * For correct working in error cases, it is necessary to properly set
     * field 'nodes.brokenImage' in the options.
     *
     * @param {Image} imageObj  required; main image to show for this node
     * @param {Image|undefined} imageObjAlt optional; image to show when node is selected
     */
  }, {
    key: "setImages",
    value: function setImages(imageObj, imageObjAlt) {
      if (imageObjAlt && this.selected) {
        this.imageObj = imageObjAlt;
        this.imageObjAlt = imageObj;
      } else {
        this.imageObj = imageObj;
        this.imageObjAlt = imageObjAlt;
      }
    }

/**
     * Set selection and switch between the base and the selected image.
     *
     * Do the switch only if imageObjAlt exists.
     *
     * @param {boolean} selected value of new selected state for current node
     */
  }, {
    key: "switchImages",
    value: function switchImages(selected) {
      var selection_changed = selected && !this.selected || !selected && this.selected;
      this.selected = selected; // Remember new selection

if (this.imageObjAlt !== undefined && selection_changed) {
        var imageTmp = this.imageObj;
        this.imageObj = this.imageObjAlt;
        this.imageObjAlt = imageTmp;
      }
    }

/**
     * Returns Image Padding from node options
     *
     * @returns {{top: number,left: number,bottom: number,right: number}} image padding inside this shape
     * @private
     */
  }, {
    key: "_getImagePadding",
    value: function _getImagePadding() {
      var imgPadding = {
        top: 0,
        right: 0,
        bottom: 0,
        left: 0
      };
      if (this.options.imagePadding) {
        var optImgPadding = this.options.imagePadding;
        if (_typeof(optImgPadding) == "object") {
          imgPadding.top = optImgPadding.top;
          imgPadding.right = optImgPadding.right;
          imgPadding.bottom = optImgPadding.bottom;
          imgPadding.left = optImgPadding.left;
        } else {
          imgPadding.top = optImgPadding;
          imgPadding.right = optImgPadding;
          imgPadding.bottom = optImgPadding;
          imgPadding.left = optImgPadding;
        }
      }
      return imgPadding;
    }

/**
     * Adjust the node dimensions for a loaded image.
     *
     * Pre: this.imageObj is valid
     */
  }, {
    key: "_resizeImage",
    value: function _resizeImage() {
      var width, height;
      if (this.options.shapeProperties.useImageSize === false) {
        // Use the size property
        var ratio_width = 1;
        var ratio_height = 1;

// Only calculate the proper ratio if both width and height not zero
        if (this.imageObj.width && this.imageObj.height) {
          if (this.imageObj.width > this.imageObj.height) {
            ratio_width = this.imageObj.width / this.imageObj.height;
          } else {
            ratio_height = this.imageObj.height / this.imageObj.width;
          }
        }
        width = this.options.size * 2 * ratio_width;
        height = this.options.size * 2 * ratio_height;
      } else {
        // Use the image size with image padding
        var imgPadding = this._getImagePadding();
        width = this.imageObj.width + imgPadding.left + imgPadding.right;
        height = this.imageObj.height + imgPadding.top + imgPadding.bottom;
      }
      this.width = width;
      this.height = height;
      this.radius = 0.5 * this.width;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {ArrowOptions} values
     * @private
     */
  }, {
    key: "_drawRawCircle",
    value: function _drawRawCircle(ctx, x, y, values) {
      this.initContextForDraw(ctx, values);
      drawCircle(ctx, x, y, values.size);
      this.performFill(ctx, values);
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowOptions} values
     * @private
     */
  }, {
    key: "_drawImageAtPosition",
    value: function _drawImageAtPosition(ctx, values) {
      if (this.imageObj.width != 0) {
        // draw the image
        ctx.globalAlpha = values.opacity !== undefined ? values.opacity : 1;

// draw shadow if enabled
        this.enableShadow(ctx, values);
        var factor = 1;
        if (this.options.shapeProperties.interpolation === true) {
          factor = this.imageObj.width / this.width / this.body.view.scale;
        }
        var imgPadding = this._getImagePadding();
        var imgPosLeft = this.left + imgPadding.left;
        var imgPosTop = this.top + imgPadding.top;
        var imgWidth = this.width - imgPadding.left - imgPadding.right;
        var imgHeight = this.height - imgPadding.top - imgPadding.bottom;
        this.imageObj.drawImageAtPosition(ctx, factor, imgPosLeft, imgPosTop, imgWidth, imgHeight);

// disable shadows for other elements.
        this.disableShadow(ctx, values);
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */
  }, {
    key: "_drawImageLabel",
    value: function _drawImageLabel(ctx, x, y, selected, hover) {
      var offset = 0;
      if (this.height !== undefined) {
        offset = this.height * 0.5;
        var labelDimensions = this.labelModule.getTextSize(ctx, selected, hover);
        if (labelDimensions.lineCount >= 1) {
          offset += labelDimensions.height / 2;
        }
      }
      var yLabel = y + offset;
      if (this.options.label) {
        this.labelOffset = offset;
      }
      this.labelModule.draw(ctx, x, yLabel, selected, hover, "hanging");
    }
  }]);
  return CircleImageBase;
}(NodeBase);

/**
 * A Circle Node/Cluster shape.
 *
 * @augments CircleImageBase
 */
var Circle$1 = /*#__PURE__*/function (_CircleImageBase) {
  _inherits(Circle, _CircleImageBase);
  var _super = _createSuper$q(Circle);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Circle(options, body, labelModule) {
    var _this;
    _classCallCheck(this, Circle);
    _this = _super.call(this, options, body, labelModule);
    _this._setMargins(labelModule);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(Circle, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
        var diameter = Math.max(dimensions.width + this.margin.right + this.margin.left, dimensions.height + this.margin.top + this.margin.bottom);
        this.options.size = diameter / 2; // NOTE: this size field only set here, not in Ellipse, Database, Box
        this.width = diameter;
        this.height = diameter;
        this.radius = this.width / 2;
      }
    }

/**
     *
     * @param {number} x width
     * @param {number} y height
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.size;
      this.boundingBox.left = x - this.options.size;
      this.boundingBox.right = x + this.options.size;
      this.boundingBox.bottom = y + this.options.size;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @returns {number}
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx) {
      if (ctx) {
        this.resize(ctx);
      }
      return this.width * 0.5;
    }
  }]);
  return Circle;
}(CircleImageBase);

/**
 * A CircularImage Node/Cluster shape.
 *
 * @augments CircleImageBase
 */
var CircularImage = /*#__PURE__*/function (_CircleImageBase) {
  _inherits(CircularImage, _CircleImageBase);
  var _super = _createSuper$p(CircularImage);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   * @param {Image} imageObj
   * @param {Image} imageObjAlt
   */
  function CircularImage(options, body, labelModule, imageObj, imageObjAlt) {
    var _this;
    _classCallCheck(this, CircularImage);
    _this = _super.call(this, options, body, labelModule);
    _this.setImages(imageObj, imageObjAlt);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(CircularImage, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      var imageAbsent = this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined;
      if (imageAbsent) {
        var diameter = this.options.size * 2;
        this.width = diameter;
        this.height = diameter;
        this.radius = 0.5 * this.width;
        return;
      }

// At this point, an image is present, i.e. this.imageObj is valid.
      if (this.needsRefresh(selected, hover)) {
        this._resizeImage();
      }
    }

// draw the background circle. IMPORTANT: the stroke in this method is used by the clip method below.
      this._drawRawCircle(ctx, labelX, labelY, values);

// now we draw in the circle, we save so we can revert the clip operation after drawing.
      ctx.save();
      // clip is used to use the stroke in drawRawCircle as an area that we can draw in.
      ctx.clip();
      // draw the image
      this._drawImageAtPosition(ctx, values);
      // restore so we can again draw on the full canvas
      ctx.restore();
      this._drawImageLabel(ctx, labelX, labelY, selected, hover);
      this.updateBoundingBox(x, y);
    }

// TODO: compare with Circle.updateBoundingBox(), consolidate? More stuff is happening here
    /**
     *
     * @param {number} x width
     * @param {number} y height
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y) {
      if (this.options.shapeProperties.coordinateOrigin === "top-left") {
        this.boundingBox.top = y;
        this.boundingBox.left = x;
        this.boundingBox.right = x + this.options.size * 2;
        this.boundingBox.bottom = y + this.options.size * 2;
      } else {
        this.boundingBox.top = y - this.options.size;
        this.boundingBox.left = x - this.options.size;
        this.boundingBox.right = x + this.options.size;
        this.boundingBox.bottom = y + this.options.size;
      }

// TODO: compare with Image.updateBoundingBox(), consolidate?
      this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
      this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
      this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
    }

/**
 * Base class for constructing Node/Cluster Shapes.
 *
 * @augments NodeBase
 */
var ShapeBase = /*#__PURE__*/function (_NodeBase) {
  _inherits(ShapeBase, _NodeBase);
  var _super = _createSuper$o(ShapeBase);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function ShapeBase(options, body, labelModule) {
    _classCallCheck(this, ShapeBase);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   * @param {object} [values={size: this.options.size}]
   */
  _createClass(ShapeBase, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      var values = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {
        size: this.options.size
      };
      if (this.needsRefresh(selected, hover)) {
        var _this$customSizeWidth, _this$customSizeHeigh;
        this.labelModule.getTextSize(ctx, selected, hover);
        var size = 2 * values.size;
        this.width = (_this$customSizeWidth = this.customSizeWidth) !== null && _this$customSizeWidth !== void 0 ? _this$customSizeWidth : size;
        this.height = (_this$customSizeHeigh = this.customSizeHeight) !== null && _this$customSizeHeigh !== void 0 ? _this$customSizeHeigh : size;
        this.radius = 0.5 * this.width;
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} shape
     * @param {number} sizeMultiplier - Unused! TODO: Remove next major release
     * @param {number} x
     * @param {number} y
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {ArrowOptions} values
     * @private
     * @returns {object} Callbacks to draw later on higher layers.
     */
  }, {
    key: "_drawShape",
    value: function _drawShape(ctx, shape, sizeMultiplier, x, y, selected, hover, values) {
      var _this = this;
      this.resize(ctx, selected, hover, values);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;
      this.initContextForDraw(ctx, values);
      getShape(shape)(ctx, x, y, values.size);
      this.performFill(ctx, values);
      if (this.options.icon !== undefined) {
        if (this.options.icon.code !== undefined) {
          ctx.font = (selected ? "bold " : "") + this.height / 2 + "px " + (this.options.icon.face || "FontAwesome");
          ctx.fillStyle = this.options.icon.color || "black";
          ctx.textAlign = "center";
          ctx.textBaseline = "middle";
          ctx.fillText(this.options.icon.code, x, y);
        }
      }
      return {
        drawExternalLabel: function drawExternalLabel() {
          if (_this.options.label !== undefined) {
            // Need to call following here in order to ensure value for
            // `this.labelModule.size.height`.
            _this.labelModule.calculateLabelSize(ctx, selected, hover, x, y, "hanging");
            var yLabel = y + 0.5 * _this.height + 0.5 * _this.labelModule.size.height;
            _this.labelModule.draw(ctx, x, yLabel, selected, hover, "hanging");
          }
          _this.updateBoundingBox(x, y);
        }
      };
    }

/**
     *
     * @param {number} x
     * @param {number} y
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.size;
      this.boundingBox.left = x - this.options.size;
      this.boundingBox.right = x + this.options.size;
      this.boundingBox.bottom = y + this.options.size;
      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height);
      }
    }
  }]);
  return ShapeBase;
}(NodeBase);

/**
 * A CustomShape Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var CustomShape = /*#__PURE__*/function (_ShapeBase) {
  _inherits(CustomShape, _ShapeBase);
  var _super = _createSuper$n(CustomShape);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   * @param {Function} ctxRenderer
   */
  function CustomShape(options, body, labelModule, ctxRenderer) {
    var _this;
    _classCallCheck(this, CustomShape);
    _this = _super.call(this, options, body, labelModule, ctxRenderer);
    _this.ctxRenderer = ctxRenderer;
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on different layers.
   */
  _createClass(CustomShape, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover, values);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

// Guard right away because someone may just draw in the function itself.
      ctx.save();
      var drawLater = this.ctxRenderer({
        ctx: ctx,
        id: this.options.id,
        x: x,
        y: y,
        state: {
          selected: selected,
          hover: hover
        },
        style: _objectSpread$3({}, values),
        label: this.options.label
      });
      // Render the node shape bellow arrows.
      if (drawLater.drawNode != null) {
        drawLater.drawNode();
      }
      ctx.restore();
      if (drawLater.drawExternalLabel) {
        // Guard the external label (above arrows) drawing function.
        var drawExternalLabel = drawLater.drawExternalLabel;
        drawLater.drawExternalLabel = function () {
          ctx.save();
          drawExternalLabel();
          ctx.restore();
        };
      }
      if (drawLater.nodeDimensions) {
        this.customSizeWidth = drawLater.nodeDimensions.width;
        this.customSizeHeight = drawLater.nodeDimensions.height;
      }
      return drawLater;
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return CustomShape;
}(ShapeBase);

/**
 * A Database Node/Cluster shape.
 *
 * @augments NodeBase
 */
var Database = /*#__PURE__*/function (_NodeBase) {
  _inherits(Database, _NodeBase);
  var _super = _createSuper$m(Database);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Database(options, body, labelModule) {
    var _this;
    _classCallCheck(this, Database);
    _this = _super.call(this, options, body, labelModule);
    _this._setMargins(labelModule);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} selected
   * @param {boolean} hover
   */
  _createClass(Database, [{
    key: "resize",
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
        var size = dimensions.width + this.margin.right + this.margin.left;
        this.width = size;
        this.height = size;
        this.radius = this.width / 2;
      }
    }

/**
 * A Diamond Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Diamond$1 = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Diamond, _ShapeBase);
  var _super = _createSuper$l(Diamond);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Diamond(options, body, labelModule) {
    _classCallCheck(this, Diamond);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Diamond, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "diamond", 4, x, y, selected, hover, values);
    }

/**
 * A Dot Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Dot = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Dot, _ShapeBase);
  var _super = _createSuper$k(Dot);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Dot(options, body, labelModule) {
    _classCallCheck(this, Dot);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Dot, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "circle", 2, x, y, selected, hover, values);
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @returns {number}
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx) {
      if (ctx) {
        this.resize(ctx);
      }
      return this.options.size;
    }
  }]);
  return Dot;
}(ShapeBase);

/**
 * Am Ellipse Node/Cluster shape.
 *
 * @augments NodeBase
 */
var Ellipse$1 = /*#__PURE__*/function (_NodeBase) {
  _inherits(Ellipse, _NodeBase);
  var _super = _createSuper$j(Ellipse);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Ellipse(options, body, labelModule) {
    _classCallCheck(this, Ellipse);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(Ellipse, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
        this.height = dimensions.height * 2;
        this.width = dimensions.width + dimensions.height;
        this.radius = 0.5 * this.width;
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx, angle) {
      if (ctx) {
        this.resize(ctx);
      }
      var a = this.width * 0.5;
      var b = this.height * 0.5;
      var w = Math.sin(angle) * a;
      var h = Math.cos(angle) * b;
      return a * b / Math.sqrt(w * w + h * h);
    }
  }]);
  return Ellipse;
}(NodeBase);

/**
 * An icon replacement for the default Node shape.
 *
 * @augments NodeBase
 */
var Icon = /*#__PURE__*/function (_NodeBase) {
  _inherits(Icon, _NodeBase);
  var _super = _createSuper$i(Icon);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Icon(options, body, labelModule) {
    var _this;
    _classCallCheck(this, Icon);
    _this = _super.call(this, options, body, labelModule);
    _this._setMargins(labelModule);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx - Unused.
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(Icon, [{
    key: "resize",
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        this.iconSize = {
          width: Number(this.options.icon.size),
          height: Number(this.options.icon.size)
        };
        this.width = this.iconSize.width + this.margin.right + this.margin.left;
        this.height = this.iconSize.height + this.margin.top + this.margin.bottom;
        this.radius = 0.5 * this.width;
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {ArrowOptions} values
     * @returns {object} Callbacks to draw later on higher layers.
     */
  }, {
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      var _this2 = this;
      this.resize(ctx, selected, hover);
      this.options.icon.size = this.options.icon.size || 50;
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;
      this._icon(ctx, x, y, selected, hover, values);
      return {
        drawExternalLabel: function drawExternalLabel() {
          if (_this2.options.label !== undefined) {
            var iconTextSpacing = 5;
            _this2.labelModule.draw(ctx, _this2.left + _this2.iconSize.width / 2 + _this2.margin.left, y + _this2.height / 2 + iconTextSpacing, selected);
          }
          _this2.updateBoundingBox(x, y);
        }
      };
    }

/**
     *
     * @param {number} x
     * @param {number} y
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.icon.size * 0.5;
      this.boundingBox.left = x - this.options.icon.size * 0.5;
      this.boundingBox.right = x + this.options.icon.size * 0.5;
      this.boundingBox.bottom = y + this.options.icon.size * 0.5;
      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        var iconTextSpacing = 5;
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height + iconTextSpacing);
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover - Unused
     * @param {ArrowOptions} values
     */
  }, {
    key: "_icon",
    value: function _icon(ctx, x, y, selected, hover, values) {
      var iconSize = Number(this.options.icon.size);
      if (this.options.icon.code !== undefined) {
        ctx.font = [this.options.icon.weight != null ? this.options.icon.weight : selected ? "bold" : "",
        // If the weight is forced (for example to make Font Awesome 5 work
        // properly) substitute slightly bigger size for bold font face.
        (this.options.icon.weight != null && selected ? 5 : 0) + iconSize + "px", this.options.icon.face].join(" ");

// draw icon
        ctx.fillStyle = this.options.icon.color || "black";
        ctx.textAlign = "center";
        ctx.textBaseline = "middle";

// draw shadow if enabled
        this.enableShadow(ctx, values);
        ctx.fillText(this.options.icon.code, x, y);

// disable shadows for other elements.
        this.disableShadow(ctx, values);
      } else {
        console.error("When using the icon shape, you need to define the code in the icon options object. This can be done per node or globally.");
      }
    }

/**
 * An image-based replacement for the default Node shape.
 *
 * @augments CircleImageBase
 */
var Image$2 = /*#__PURE__*/function (_CircleImageBase) {
  _inherits(Image, _CircleImageBase);
  var _super = _createSuper$h(Image);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   * @param {Image} imageObj
   * @param {Image} imageObjAlt
   */
  function Image(options, body, labelModule, imageObj, imageObjAlt) {
    var _this;
    _classCallCheck(this, Image);
    _this = _super.call(this, options, body, labelModule);
    _this.setImages(imageObj, imageObjAlt);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx - Unused.
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */
  _createClass(Image, [{
    key: "resize",
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      var imageAbsent = this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined;
      if (imageAbsent) {
        var side = this.options.size * 2;
        this.width = side;
        this.height = side;
        return;
      }
      if (this.needsRefresh(selected, hover)) {
        this._resizeImage();
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {ArrowOptions} values
     */
  }, {
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      ctx.save();
      this.switchImages(selected);
      this.resize();
      var labelX = x,
        labelY = y;
      if (this.options.shapeProperties.coordinateOrigin === "top-left") {
        this.left = x;
        this.top = y;
        labelX += this.width / 2;
        labelY += this.height / 2;
      } else {
        this.left = x - this.width / 2;
        this.top = y - this.height / 2;
      }
      if (this.options.shapeProperties.useBorderWithImage === true) {
        var neutralborderWidth = this.options.borderWidth;
        var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
        var borderWidth = (selected ? selectionLineWidth : neutralborderWidth) / this.body.view.scale;
        ctx.lineWidth = Math.min(this.width, borderWidth);
        ctx.beginPath();
        var strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;
        var fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;
        if (values.opacity !== undefined) {
          strokeStyle = overrideOpacity(strokeStyle, values.opacity);
          fillStyle = overrideOpacity(fillStyle, values.opacity);
        }
        // setup the line properties.
        ctx.strokeStyle = strokeStyle;

// set a fillstyle
        ctx.fillStyle = fillStyle;

// draw a rectangle to form the border around. This rectangle is filled so the opacity of a picture (in future vis releases?) can be used to tint the image
        ctx.rect(this.left - 0.5 * ctx.lineWidth, this.top - 0.5 * ctx.lineWidth, this.width + ctx.lineWidth, this.height + ctx.lineWidth);
        _fillInstanceProperty(ctx).call(ctx);
        this.performStroke(ctx, values);
        ctx.closePath();
      }
      this._drawImageAtPosition(ctx, values);
      this._drawImageLabel(ctx, labelX, labelY, selected, hover);
      this.updateBoundingBox(x, y);
      ctx.restore();
    }

/**
     *
     * @param {number} x
     * @param {number} y
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(x, y) {
      this.resize();
      if (this.options.shapeProperties.coordinateOrigin === "top-left") {
        this.left = x;
        this.top = y;
      } else {
        this.left = x - this.width / 2;
        this.top = y - this.height / 2;
      }
      this.boundingBox.left = this.left;
      this.boundingBox.top = this.top;
      this.boundingBox.bottom = this.top + this.height;
      this.boundingBox.right = this.left + this.width;
      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
      }
    }

/**
 * A Square Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Square = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Square, _ShapeBase);
  var _super = _createSuper$g(Square);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Square(options, body, labelModule) {
    _classCallCheck(this, Square);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Square, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "square", 2, x, y, selected, hover, values);
    }

/**
 * A Hexagon Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Hexagon = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Hexagon, _ShapeBase);
  var _super = _createSuper$f(Hexagon);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Hexagon(options, body, labelModule) {
    _classCallCheck(this, Hexagon);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Hexagon, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "hexagon", 4, x, y, selected, hover, values);
    }

/**
 * A Star Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Star = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Star, _ShapeBase);
  var _super = _createSuper$e(Star);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Star(options, body, labelModule) {
    _classCallCheck(this, Star);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Star, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "star", 4, x, y, selected, hover, values);
    }

/**
 * A text-based replacement for the default Node shape.
 *
 * @augments NodeBase
 */
var Text = /*#__PURE__*/function (_NodeBase) {
  _inherits(Text, _NodeBase);
  var _super = _createSuper$d(Text);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Text(options, body, labelModule) {
    var _this;
    _classCallCheck(this, Text);
    _this = _super.call(this, options, body, labelModule);
    _this._setMargins(labelModule);
    return _this;
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} selected
   * @param {boolean} hover
   */
  _createClass(Text, [{
    key: "resize",
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        this.textSize = this.labelModule.getTextSize(ctx, selected, hover);
        this.width = this.textSize.width + this.margin.right + this.margin.left;
        this.height = this.textSize.height + this.margin.top + this.margin.bottom;
        this.radius = 0.5 * this.width;
      }
    }

// draw shadow if enabled
      this.enableShadow(ctx, values);
      this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left, this.top + this.textSize.height / 2 + this.margin.top, selected, hover);

// disable shadows for other elements.
      this.disableShadow(ctx, values);
      this.updateBoundingBox(x, y, ctx, selected, hover);
    }

/**
 * A Triangle Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var Triangle$1 = /*#__PURE__*/function (_ShapeBase) {
  _inherits(Triangle, _ShapeBase);
  var _super = _createSuper$c(Triangle);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function Triangle(options, body, labelModule) {
    _classCallCheck(this, Triangle);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x
   * @param {number} y
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(Triangle, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "triangle", 3, x, y, selected, hover, values);
    }

/**
 * A downward facing Triangle Node/Cluster shape.
 *
 * @augments ShapeBase
 */
var TriangleDown = /*#__PURE__*/function (_ShapeBase) {
  _inherits(TriangleDown, _ShapeBase);
  var _super = _createSuper$b(TriangleDown);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Label} labelModule
   */
  function TriangleDown(options, body, labelModule) {
    _classCallCheck(this, TriangleDown);
    return _super.call(this, options, body, labelModule);
  }

/**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x
   * @param {number} y
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {ArrowOptions} values
   * @returns {object} Callbacks to draw later on higher layers.
   */
  _createClass(TriangleDown, [{
    key: "draw",
    value: function draw(ctx, x, y, selected, hover, values) {
      return this._drawShape(ctx, "triangleDown", 3, x, y, selected, hover, values);
    }

/**
 * A node. A node can be connected to other nodes via one or multiple edges.
 */
var Node = /*#__PURE__*/function () {
  /**
   *
   * @param {object} options An object containing options for the node. All
   *                            options are optional, except for the id.
   *                              {number} id     Id of the node. Required
   *                              {string} label  Text label for the node
   *                              {number} x      Horizontal position of the node
   *                              {number} y      Vertical position of the node
   *                              {string} shape  Node shape
   *                              {string} image  An image url
   *                              {string} title  A title text, can be HTML
   *                              {anytype} group A group name or number
   * @param {object} body               Shared state of current network instance
   * @param {Network.Images} imagelist  A list with images. Only needed when the node has an image
   * @param {Groups} grouplist          A list with groups. Needed for retrieving group options
   * @param {object} globalOptions      Current global node options; these serve as defaults for the node instance
   * @param {object} defaultOptions     Global default options for nodes; note that this is also the prototype
   *                                    for parameter `globalOptions`.
   */
  function Node(options, body, imagelist, grouplist, globalOptions, defaultOptions) {
    _classCallCheck(this, Node);
    this.options = bridgeObject(globalOptions);
    this.globalOptions = globalOptions;
    this.defaultOptions = defaultOptions;
    this.body = body;
    this.edges = []; // all edges connected to this node

// set defaults for the options
    this.id = undefined;
    this.imagelist = imagelist;
    this.grouplist = grouplist;

// state options
    this.x = undefined;
    this.y = undefined;
    this.baseSize = this.options.size;
    this.baseFontSize = this.options.font.size;
    this.predefinedPosition = false; // used to check if initial fit should just take the range or approximate
    this.selected = false;
    this.hover = false;
    this.labelModule = new Label(this.body, this.options, false /* Not edge label */);

this.setOptions(options);
  }

/**
   * Attach a edge to the node
   *
   * @param {Edge} edge
   */
  _createClass(Node, [{
    key: "attachEdge",
    value: function attachEdge(edge) {
      var _context;
      if (_indexOfInstanceProperty(_context = this.edges).call(_context, edge) === -1) {
        this.edges.push(edge);
      }
    }

/**
     * Detach a edge from the node
     *
     * @param {Edge} edge
     */
  }, {
    key: "detachEdge",
    value: function detachEdge(edge) {
      var _context2;
      var index = _indexOfInstanceProperty(_context2 = this.edges).call(_context2, edge);
      if (index != -1) {
        var _context3;
        _spliceInstanceProperty(_context3 = this.edges).call(_context3, index, 1);
      }
    }

/**
     * Set or overwrite options for the node
     *
     * @param {object} options an object with options
     * @returns {null|boolean}
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      var currentShape = this.options.shape;
      if (!options) {
        return; // Note that the return value will be 'undefined'! This is OK.
      }

// Save the color for later.
      // This is necessary in order to prevent local color from being overwritten by group color.
      // TODO: To prevent such workarounds the way options are handled should be rewritten from scratch.
      // This is not the only problem with current options handling.
      if (typeof options.color !== "undefined") {
        this._localColor = options.color;
      }

// basic options
      if (options.id !== undefined) {
        this.id = options.id;
      }
      if (this.id === undefined) {
        throw new Error("Node must have an id");
      }
      Node.checkMass(options, this.id);

// set these options locally
      // clear x and y positions
      if (options.x !== undefined) {
        if (options.x === null) {
          this.x = undefined;
          this.predefinedPosition = false;
        } else {
          this.x = _parseInt(options.x);
          this.predefinedPosition = true;
        }
      }
      if (options.y !== undefined) {
        if (options.y === null) {
          this.y = undefined;
          this.predefinedPosition = false;
        } else {
          this.y = _parseInt(options.y);
          this.predefinedPosition = true;
        }
      }
      if (options.size !== undefined) {
        this.baseSize = options.size;
      }
      if (options.value !== undefined) {
        options.value = _parseFloat(options.value);
      }

// this transforms all shorthands into fully defined options
      Node.parseOptions(this.options, options, true, this.globalOptions, this.grouplist);
      var pile = [options, this.options, this.defaultOptions];
      this.chooser = choosify("node", pile);
      this._load_images();
      this.updateLabelModule(options);

// Need to set local opacity after `this.updateLabelModule(options);` because `this.updateLabelModule(options);` overrites local opacity with group opacity
      if (options.opacity !== undefined && Node.checkOpacity(options.opacity)) {
        this.options.opacity = options.opacity;
      }
      this.updateShape(currentShape);
      return options.hidden !== undefined || options.physics !== undefined;
    }

/**
     * Load the images from the options, for the nodes that need them.
     *
     * Images are always loaded, even if they are not used in the current shape.
     * The user may switch to an image shape later on.
     *
     * @private
     */
  }, {
    key: "_load_images",
    value: function _load_images() {
      if (this.options.shape === "circularImage" || this.options.shape === "image") {
        if (this.options.image === undefined) {
          throw new Error("Option image must be defined for node type '" + this.options.shape + "'");
        }
      }
      if (this.options.image === undefined) {
        return;
      }
      if (this.imagelist === undefined) {
        throw new Error("Internal Error: No images provided");
      }
      if (typeof this.options.image === "string") {
        this.imageObj = this.imagelist.load(this.options.image, this.options.brokenImage, this.id);
      } else {
        if (this.options.image.unselected === undefined) {
          throw new Error("No unselected image provided");
        }
        this.imageObj = this.imagelist.load(this.options.image.unselected, this.options.brokenImage, this.id);
        if (this.options.image.selected !== undefined) {
          this.imageObjAlt = this.imagelist.load(this.options.image.selected, this.options.brokenImage, this.id);
        } else {
          this.imageObjAlt = undefined;
        }
      }
    }

/**
     * Check that opacity is only between 0 and 1
     *
     * @param {number} opacity
     * @returns {boolean}
     */
  }, {
    key: "getFormattingValues",
    value:
    /**
     *
     * @returns {{color: *, borderWidth: *, borderColor: *, size: *, borderDashes: (boolean|Array|allOptions.nodes.shapeProperties.borderDashes|{boolean, array}), borderRadius: (number|allOptions.nodes.shapeProperties.borderRadius|{number}|Array), shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *}}
     */
    function getFormattingValues() {
      var values = {
        color: this.options.color.background,
        opacity: this.options.opacity,
        borderWidth: this.options.borderWidth,
        borderColor: this.options.color.border,
        size: this.options.size,
        borderDashes: this.options.shapeProperties.borderDashes,
        borderRadius: this.options.shapeProperties.borderRadius,
        shadow: this.options.shadow.enabled,
        shadowColor: this.options.shadow.color,
        shadowSize: this.options.shadow.size,
        shadowX: this.options.shadow.x,
        shadowY: this.options.shadow.y
      };
      if (this.selected || this.hover) {
        if (this.chooser === true) {
          if (this.selected) {
            if (this.options.borderWidthSelected != null) {
              values.borderWidth = this.options.borderWidthSelected;
            } else {
              values.borderWidth *= 2;
            }
            values.color = this.options.color.highlight.background;
            values.borderColor = this.options.color.highlight.border;
            values.shadow = this.options.shadow.enabled;
          } else if (this.hover) {
            values.color = this.options.color.hover.background;
            values.borderColor = this.options.color.hover.border;
            values.shadow = this.options.shadow.enabled;
          }
        } else if (typeof this.chooser === "function") {
          this.chooser(values, this.options.id, this.selected, this.hover);
          if (values.shadow === false) {
            if (values.shadowColor !== this.options.shadow.color || values.shadowSize !== this.options.shadow.size || values.shadowX !== this.options.shadow.x || values.shadowY !== this.options.shadow.y) {
              values.shadow = true;
            }
          }
        }
      } else {
        values.shadow = this.options.shadow.enabled;
      }
      if (this.options.opacity !== undefined) {
        var opacity = this.options.opacity;
        values.borderColor = overrideOpacity(values.borderColor, opacity);
        values.color = overrideOpacity(values.color, opacity);
        values.shadowColor = overrideOpacity(values.shadowColor, opacity);
      }
      return values;
    }

/**
     *
     * @param {object} options
     */
  }, {
    key: "updateLabelModule",
    value: function updateLabelModule(options) {
      if (this.options.label === undefined || this.options.label === null) {
        this.options.label = "";
      }
      Node.updateGroupOptions(this.options, _objectSpread$2(_objectSpread$2({}, options), {}, {
        color: options && options.color || this._localColor || undefined
      }), this.grouplist);

//
      // Note:The prototype chain for this.options is:
      //
      // this.options ->    NodesHandler.options    -> NodesHandler.defaultOptions
      //                 (also: this.globalOptions)
      //
      // Note that the prototypes are mentioned explicitly in the pile list below;
      // WE DON'T WANT THE ORDER OF THE PROTOTYPES!!!! At least, not for font handling of labels.
      // This is a good indication that the prototype usage of options is deficient.
      //
      var currentGroup = this.grouplist.get(this.options.group, false);
      var pile = [options,
      // new options
      this.options,
      // current node options, see comment above for prototype
      currentGroup,
      // group options, if any
      this.globalOptions,
      // Currently set global node options
      this.defaultOptions // Default global node options
      ];

this.labelModule.update(this.options, pile);
      if (this.labelModule.baseSize !== undefined) {
        this.baseFontSize = this.labelModule.baseSize;
      }
    }

/**
     *
     * @param {string} currentShape
     */
  }, {
    key: "updateShape",
    value: function updateShape(currentShape) {
      if (currentShape === this.options.shape && this.shape) {
        this.shape.setOptions(this.options, this.imageObj, this.imageObjAlt);
      } else {
        // choose draw method depending on the shape
        switch (this.options.shape) {
          case "box":
            this.shape = new Box$1(this.options, this.body, this.labelModule);
            break;
          case "circle":
            this.shape = new Circle$1(this.options, this.body, this.labelModule);
            break;
          case "circularImage":
            this.shape = new CircularImage(this.options, this.body, this.labelModule, this.imageObj, this.imageObjAlt);
            break;
          case "custom":
            this.shape = new CustomShape(this.options, this.body, this.labelModule, this.options.ctxRenderer);
            break;
          case "database":
            this.shape = new Database(this.options, this.body, this.labelModule);
            break;
          case "diamond":
            this.shape = new Diamond$1(this.options, this.body, this.labelModule);
            break;
          case "dot":
            this.shape = new Dot(this.options, this.body, this.labelModule);
            break;
          case "ellipse":
            this.shape = new Ellipse$1(this.options, this.body, this.labelModule);
            break;
          case "icon":
            this.shape = new Icon(this.options, this.body, this.labelModule);
            break;
          case "image":
            this.shape = new Image$2(this.options, this.body, this.labelModule, this.imageObj, this.imageObjAlt);
            break;
          case "square":
            this.shape = new Square(this.options, this.body, this.labelModule);
            break;
          case "hexagon":
            this.shape = new Hexagon(this.options, this.body, this.labelModule);
            break;
          case "star":
            this.shape = new Star(this.options, this.body, this.labelModule);
            break;
          case "text":
            this.shape = new Text(this.options, this.body, this.labelModule);
            break;
          case "triangle":
            this.shape = new Triangle$1(this.options, this.body, this.labelModule);
            break;
          case "triangleDown":
            this.shape = new TriangleDown(this.options, this.body, this.labelModule);
            break;
          default:
            this.shape = new Ellipse$1(this.options, this.body, this.labelModule);
            break;
        }
      }
      this.needsRefresh();
    }

/**
     * select this node
     */
  }, {
    key: "select",
    value: function select() {
      this.selected = true;
      this.needsRefresh();
    }

/**
     * unselect this node
     */
  }, {
    key: "unselect",
    value: function unselect() {
      this.selected = false;
      this.needsRefresh();
    }

/**
     * Reset the calculated size of the node, forces it to recalculate its size
     */
  }, {
    key: "needsRefresh",
    value: function needsRefresh() {
      this.shape.refreshNeeded = true;
    }

/**
     * get the title of this node.
     *
     * @returns {string} title    The title of the node, or undefined when no title
     *                           has been set.
     */
  }, {
    key: "getTitle",
    value: function getTitle() {
      return this.options.title;
    }

/**
     * Calculate the distance to the border of the Node
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @param {number} angle        Angle in radians
     * @returns {number} distance   Distance to the border in pixels
     */
  }, {
    key: "distanceToBorder",
    value: function distanceToBorder(ctx, angle) {
      return this.shape.distanceToBorder(ctx, angle);
    }

/**
     * Check if this node has a fixed x and y position
     *
     * @returns {boolean}      true if fixed, false if not
     */
  }, {
    key: "isFixed",
    value: function isFixed() {
      return this.options.fixed.x && this.options.fixed.y;
    }

/**
     * check if this node is selecte
     *
     * @returns {boolean} selected   True if node is selected, else false
     */
  }, {
    key: "isSelected",
    value: function isSelected() {
      return this.selected;
    }

/**
     * Retrieve the value of the node. Can be undefined
     *
     * @returns {number} value
     */
  }, {
    key: "getValue",
    value: function getValue() {
      return this.options.value;
    }

/**
     * Get the current dimensions of the label
     *
     * @returns {rect}
     */
  }, {
    key: "getLabelSize",
    value: function getLabelSize() {
      return this.labelModule.size();
    }

/**
     * Adjust the value range of the node. The node will adjust it's size
     * based on its value.
     *
     * @param {number} min
     * @param {number} max
     * @param {number} total
     */
  }, {
    key: "setValueRange",
    value: function setValueRange(min, max, total) {
      if (this.options.value !== undefined) {
        var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
        var sizeDiff = this.options.scaling.max - this.options.scaling.min;
        if (this.options.scaling.label.enabled === true) {
          var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
          this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
        }
        this.options.size = this.options.scaling.min + scale * sizeDiff;
      } else {
        this.options.size = this.baseSize;
        this.options.font.size = this.baseFontSize;
      }
      this.updateLabelModule();
    }

/**
     * Draw this node in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @returns {object} Callbacks to draw later on higher layers.
     */
  }, {
    key: "draw",
    value: function draw(ctx) {
      var values = this.getFormattingValues();
      return this.shape.draw(ctx, this.x, this.y, this.selected, this.hover, values) || {};
    }

/**
     * Update the bounding box of the shape
     *
     * @param {CanvasRenderingContext2D}   ctx
     */
  }, {
    key: "updateBoundingBox",
    value: function updateBoundingBox(ctx) {
      this.shape.updateBoundingBox(this.x, this.y, ctx);
    }

/**
     * Recalculate the size of this node in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     *
     * @param {CanvasRenderingContext2D}   ctx
     */
  }, {
    key: "resize",
    value: function resize(ctx) {
      var values = this.getFormattingValues();
      this.shape.resize(ctx, this.selected, this.hover, values);
    }

/**
     * Determine all visual elements of this node instance, in which the given
     * point falls within the bounding shape.
     *
     * @param {point} point
     * @returns {Array.<nodeClickItem|nodeLabelClickItem>} list with the items which are on the point
     */
  }, {
    key: "getItemsOnPoint",
    value: function getItemsOnPoint(point) {
      var ret = [];
      if (this.labelModule.visible()) {
        if (pointInRect(this.labelModule.getSize(), point)) {
          ret.push({
            nodeId: this.id,
            labelId: 0
          });
        }
      }
      if (pointInRect(this.shape.boundingBox, point)) {
        ret.push({
          nodeId: this.id
        });
      }
      return ret;
    }

/**
     * Check if this object is overlapping with the provided object
     *
     * @param {object} obj   an object with parameters left, top, right, bottom
     * @returns {boolean}     True if location is located on node
     */
  }, {
    key: "isOverlappingWith",
    value: function isOverlappingWith(obj) {
      return this.shape.left < obj.right && this.shape.left + this.shape.width > obj.left && this.shape.top < obj.bottom && this.shape.top + this.shape.height > obj.top;
    }

/**
     * Check if this object is overlapping with the provided object
     *
     * @param {object} obj   an object with parameters left, top, right, bottom
     * @returns {boolean}     True if location is located on node
     */
  }, {
    key: "isBoundingBoxOverlappingWith",
    value: function isBoundingBoxOverlappingWith(obj) {
      return this.shape.boundingBox.left < obj.right && this.shape.boundingBox.right > obj.left && this.shape.boundingBox.top < obj.bottom && this.shape.boundingBox.bottom > obj.top;
    }

/**
     * Check valid values for mass
     *
     * The mass may not be negative or zero. If it is, reset to 1
     *
     * @param {object} options
     * @param {Node.id} id
     * @static
     */
  }], [{
    key: "checkOpacity",
    value: function checkOpacity(opacity) {
      return 0 <= opacity && opacity <= 1;
    }

/**
     * Check that origin is 'center' or 'top-left'
     *
     * @param {string} origin
     * @returns {boolean}
     */
  }, {
    key: "checkCoordinateOrigin",
    value: function checkCoordinateOrigin(origin) {
      return origin === undefined || origin === "center" || origin === "top-left";
    }

/**
     * Copy group option values into the node options.
     *
     * The group options override the global node options, so the copy of group options
     *  must happen *after* the global node options have been set.
     *
     * This method must also be called also if the global node options have changed and the group options did not.
     *
     * @param {object} parentOptions
     * @param {object} newOptions  new values for the options, currently only passed in for check
     * @param {object} groupList
     */
  }, {
    key: "updateGroupOptions",
    value: function updateGroupOptions(parentOptions, newOptions, groupList) {
      var _context4;
      if (groupList === undefined) return; // No groups, nothing to do

var group = parentOptions.group;

// paranoia: the selected group is already merged into node options, check.
      if (newOptions !== undefined && newOptions.group !== undefined && group !== newOptions.group) {
        throw new Error("updateGroupOptions: group values in options don't match.");
      }
      var hasGroup = typeof group === "number" || typeof group === "string" && group != "";
      if (!hasGroup) return; // current node has no group, no need to merge

var groupObj = groupList.get(group);
      if (groupObj.opacity !== undefined && newOptions.opacity === undefined) {
        if (!Node.checkOpacity(groupObj.opacity)) {
          console.error("Invalid option for node opacity. Value must be between 0 and 1, found: " + groupObj.opacity);
          groupObj.opacity = undefined;
        }
      }

// Skip any new option to avoid them being overridden by the group options.
      var skipProperties = _filterInstanceProperty(_context4 = _Object$getOwnPropertyNames(newOptions)).call(_context4, function (p) {
        return newOptions[p] != null;
      });
      // Always skip merging group font options into parent; these are required to be distinct for labels
      skipProperties.push("font");
      selectiveNotDeepExtend(skipProperties, parentOptions, groupObj);

// the color object needs to be completely defined.
      // Since groups can partially overwrite the colors, we parse it again, just in case.
      parentOptions.color = parseColor(parentOptions.color);
    }

/**
     * This process all possible shorthands in the new options and makes sure that the parentOptions are fully defined.
     * Static so it can also be used by the handler.
     *
     * @param {object} parentOptions
     * @param {object} newOptions
     * @param {boolean} [allowDeletion=false]
     * @param {object} [globalOptions={}]
     * @param {object} [groupList]
     * @static
     */
  }, {
    key: "parseOptions",
    value: function parseOptions(parentOptions, newOptions) {
      var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
      var groupList = arguments.length > 4 ? arguments[4] : undefined;
      var fields = ["color", "fixed", "shadow"];
      selectiveNotDeepExtend(fields, parentOptions, newOptions, allowDeletion);
      Node.checkMass(newOptions);
      if (parentOptions.opacity !== undefined) {
        if (!Node.checkOpacity(parentOptions.opacity)) {
          console.error("Invalid option for node opacity. Value must be between 0 and 1, found: " + parentOptions.opacity);
          parentOptions.opacity = undefined;
        }
      }
      if (newOptions.opacity !== undefined) {
        if (!Node.checkOpacity(newOptions.opacity)) {
          console.error("Invalid option for node opacity. Value must be between 0 and 1, found: " + newOptions.opacity);
          newOptions.opacity = undefined;
        }
      }
      if (newOptions.shapeProperties && !Node.checkCoordinateOrigin(newOptions.shapeProperties.coordinateOrigin)) {
        console.error("Invalid option for node coordinateOrigin, found: " + newOptions.shapeProperties.coordinateOrigin);
      }

// merge the shadow options into the parent.
      mergeOptions(parentOptions, newOptions, "shadow", globalOptions);

// individual shape newOptions
      if (newOptions.color !== undefined && newOptions.color !== null) {
        var parsedColor = parseColor(newOptions.color);
        fillIfDefined(parentOptions.color, parsedColor);
      } else if (allowDeletion === true && newOptions.color === null) {
        parentOptions.color = bridgeObject(globalOptions.color); // set the object back to the global options
      }

// handle the fixed options
      if (newOptions.fixed !== undefined && newOptions.fixed !== null) {
        if (typeof newOptions.fixed === "boolean") {
          parentOptions.fixed.x = newOptions.fixed;
          parentOptions.fixed.y = newOptions.fixed;
        } else {
          if (newOptions.fixed.x !== undefined && typeof newOptions.fixed.x === "boolean") {
            parentOptions.fixed.x = newOptions.fixed.x;
          }
          if (newOptions.fixed.y !== undefined && typeof newOptions.fixed.y === "boolean") {
            parentOptions.fixed.y = newOptions.fixed.y;
          }
        }
      }
      if (allowDeletion === true && newOptions.font === null) {
        parentOptions.font = bridgeObject(globalOptions.font); // set the object back to the global options
      }

Node.updateGroupOptions(parentOptions, newOptions, groupList);

// handle the scaling options, specifically the label part
      if (newOptions.scaling !== undefined) {
        mergeOptions(parentOptions.scaling, newOptions.scaling, "label", globalOptions.scaling);
      }
    }
  }, {
    key: "checkMass",
    value: function checkMass(options, id) {
      if (options.mass !== undefined && options.mass <= 0) {
        var strId = "";
        if (id !== undefined) {
          strId = " in node id: " + id;
        }
        console.error("%cNegative or zero mass disallowed" + strId + ", setting mass to 1.", VALIDATOR_PRINT_STYLE);
        options.mass = 1;
      }
    }
  }]);
  return Node;
}();

/**
 * Handler for Nodes
 */
var NodesHandler = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Images} images
   * @param {Array.<Group>} groups
   * @param {LayoutEngine} layoutEngine
   */
  function NodesHandler(body, images, groups, layoutEngine) {
    var _context,
      _this = this;
    _classCallCheck(this, NodesHandler);
    this.body = body;
    this.images = images;
    this.groups = groups;
    this.layoutEngine = layoutEngine;

// create the node API in the body container
    this.body.functions.createNode = _bindInstanceProperty$1(_context = this.create).call(_context, this);
    this.nodesListeners = {
      add: function add(event, params) {
        _this.add(params.items);
      },
      update: function update(event, params) {
        _this.update(params.items, params.data, params.oldData);
      },
      remove: function remove(event, params) {
        _this.remove(params.items);
      }
    };
    this.defaultOptions = {
      borderWidth: 1,
      borderWidthSelected: undefined,
      brokenImage: undefined,
      color: {
        border: "#2B7CE9",
        background: "#97C2FC",
        highlight: {
          border: "#2B7CE9",
          background: "#D2E5FF"
        },
        hover: {
          border: "#2B7CE9",
          background: "#D2E5FF"
        }
      },
      opacity: undefined,
      // number between 0 and 1
      fixed: {
        x: false,
        y: false
      },
      font: {
        color: "#343434",
        size: 14,
        // px
        face: "arial",
        background: "none",
        strokeWidth: 0,
        // px
        strokeColor: "#ffffff",
        align: "center",
        vadjust: 0,
        multi: false,
        bold: {
          mod: "bold"
        },
        boldital: {
          mod: "bold italic"
        },
        ital: {
          mod: "italic"
        },
        mono: {
          mod: "",
          size: 15,
          // px
          face: "monospace",
          vadjust: 2
        }
      },
      group: undefined,
      hidden: false,
      icon: {
        face: "FontAwesome",
        //'FontAwesome',
        code: undefined,
        //'\uf007',
        size: 50,
        //50,
        color: "#2B7CE9" //'#aa00ff'
      },

image: undefined,
      // --> URL
      imagePadding: {
        // only for image shape
        top: 0,
        right: 0,
        bottom: 0,
        left: 0
      },
      label: undefined,
      labelHighlightBold: true,
      level: undefined,
      margin: {
        top: 5,
        right: 5,
        bottom: 5,
        left: 5
      },
      mass: 1,
      physics: true,
      scaling: {
        min: 10,
        max: 30,
        label: {
          enabled: false,
          min: 14,
          max: 30,
          maxVisible: 30,
          drawThreshold: 5
        },
        customScalingFunction: function customScalingFunction(min, max, total, value) {
          if (max === min) {
            return 0.5;
          } else {
            var scale = 1 / (max - min);
            return Math.max(0, (value - min) * scale);
          }
        }
      },
      shadow: {
        enabled: false,
        color: "rgba(0,0,0,0.5)",
        size: 10,
        x: 5,
        y: 5
      },
      shape: "ellipse",
      shapeProperties: {
        borderDashes: false,
        // only for borders
        borderRadius: 6,
        // only for box shape
        interpolation: true,
        // only for image and circularImage shapes
        useImageSize: false,
        // only for image and circularImage shapes
        useBorderWithImage: false,
        // only for image shape
        coordinateOrigin: "center" // only for image and circularImage shapes
      },

size: 25,
      title: undefined,
      value: undefined,
      x: undefined,
      y: undefined
    };

// Protect from idiocy
    if (this.defaultOptions.mass <= 0) {
      throw "Internal error: mass in defaultOptions of NodesHandler may not be zero or negative";
    }
    this.options = bridgeObject(this.defaultOptions);
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(NodesHandler, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _context2,
        _context3,
        _this2 = this;
      // refresh the nodes. Used when reverting from hierarchical layout
      this.body.emitter.on("refreshNodes", _bindInstanceProperty$1(_context2 = this.refresh).call(_context2, this));
      this.body.emitter.on("refresh", _bindInstanceProperty$1(_context3 = this.refresh).call(_context3, this));
      this.body.emitter.on("destroy", function () {
        forEach$1(_this2.nodesListeners, function (callback, event) {
          if (_this2.body.data.nodes) _this2.body.data.nodes.off(event, callback);
        });
        delete _this2.body.functions.createNode;
        delete _this2.nodesListeners.add;
        delete _this2.nodesListeners.update;
        delete _this2.nodesListeners.remove;
        delete _this2.nodesListeners;
      });
    }

/**
     *
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        Node.parseOptions(this.options, options);

// Need to set opacity here because Node.parseOptions is also used for groups,
        // if you set opacity in Node.parseOptions it overwrites group opacity.
        if (options.opacity !== undefined) {
          if (_Number$isNaN(options.opacity) || !_Number$isFinite(options.opacity) || options.opacity < 0 || options.opacity > 1) {
            console.error("Invalid option for node opacity. Value must be between 0 and 1, found: " + options.opacity);
          } else {
            this.options.opacity = options.opacity;
          }
        }

// update the shape in all nodes
        if (options.shape !== undefined) {
          for (var nodeId in this.body.nodes) {
            if (Object.prototype.hasOwnProperty.call(this.body.nodes, nodeId)) {
              this.body.nodes[nodeId].updateShape();
            }
          }
        }

// Update the labels of nodes if any relevant options changed.
        if (typeof options.font !== "undefined" || typeof options.widthConstraint !== "undefined" || typeof options.heightConstraint !== "undefined") {
          for (var _i = 0, _Object$keys$1 = _Object$keys(this.body.nodes); _i < _Object$keys$1.length; _i++) {
            var _nodeId = _Object$keys$1[_i];
            this.body.nodes[_nodeId].updateLabelModule();
            this.body.nodes[_nodeId].needsRefresh();
          }
        }

// update the shape size in all nodes
        if (options.size !== undefined) {
          for (var _nodeId2 in this.body.nodes) {
            if (Object.prototype.hasOwnProperty.call(this.body.nodes, _nodeId2)) {
              this.body.nodes[_nodeId2].needsRefresh();
            }
          }
        }

// update the state of the variables if needed
        if (options.hidden !== undefined || options.physics !== undefined) {
          this.body.emitter.emit("_dataChanged");
        }
      }
    }

/**
     * Set a data set with nodes for the network
     *
     * @param {Array | DataSet | DataView} nodes         The data containing the nodes.
     * @param {boolean} [doNotEmit=false] - Suppress data changed event.
     * @private
     */
  }, {
    key: "setData",
    value: function setData(nodes) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var oldNodesData = this.body.data.nodes;
      if (isDataViewLike("id", nodes)) {
        this.body.data.nodes = nodes;
      } else if (_Array$isArray(nodes)) {
        this.body.data.nodes = new DataSet();
        this.body.data.nodes.add(nodes);
      } else if (!nodes) {
        this.body.data.nodes = new DataSet();
      } else {
        throw new TypeError("Array or DataSet expected");
      }
      if (oldNodesData) {
        // unsubscribe from old dataset
        forEach$1(this.nodesListeners, function (callback, event) {
          oldNodesData.off(event, callback);
        });
      }

// remove drawn nodes
      this.body.nodes = {};
      if (this.body.data.nodes) {
        // subscribe to new dataset
        var me = this;
        forEach$1(this.nodesListeners, function (callback, event) {
          me.body.data.nodes.on(event, callback);
        });

// draw all new nodes
        var ids = this.body.data.nodes.getIds();
        this.add(ids, true);
      }
      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     * Add nodes
     *
     * @param {number[] | string[]} ids
     * @param {boolean} [doNotEmit=false]
     * @private
     */
  }, {
    key: "add",
    value: function add(ids) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var id;
      var newNodes = [];
      for (var i = 0; i < ids.length; i++) {
        id = ids[i];
        var properties = this.body.data.nodes.get(id);
        var node = this.create(properties);
        newNodes.push(node);
        this.body.nodes[id] = node; // note: this may replace an existing node
      }

this.layoutEngine.positionInitially(newNodes);
      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     * Update existing nodes, or create them when not yet existing
     *
     * @param {number[] | string[]} ids id's of changed nodes
     * @param {Array} changedData array with changed data
     * @param {Array|undefined} oldData optional; array with previous data
     * @private
     */
  }, {
    key: "update",
    value: function update(ids, changedData, oldData) {
      var nodes = this.body.nodes;
      var dataChanged = false;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        var node = nodes[id];
        var data = changedData[i];
        if (node !== undefined) {
          // update node
          if (node.setOptions(data)) {
            dataChanged = true;
          }
        } else {
          dataChanged = true;
          // create node
          node = this.create(data);
          nodes[id] = node;
        }
      }
      if (!dataChanged && oldData !== undefined) {
        // Check for any changes which should trigger a layout recalculation
        // For now, this is just 'level' for hierarchical layout
        // Assumption: old and new data arranged in same order; at time of writing, this holds.
        dataChanged = _someInstanceProperty(changedData).call(changedData, function (newValue, index) {
          var oldValue = oldData[index];
          return oldValue && oldValue.level !== newValue.level;
        });
      }
      if (dataChanged === true) {
        this.body.emitter.emit("_dataChanged");
      } else {
        this.body.emitter.emit("_dataUpdated");
      }
    }

/**
     * Remove existing nodes. If nodes do not exist, the method will just ignore it.
     *
     * @param {number[] | string[]} ids
     * @private
     */
  }, {
    key: "remove",
    value: function remove(ids) {
      var nodes = this.body.nodes;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        delete nodes[id];
      }
      this.body.emitter.emit("_dataChanged");
    }

/**
     * create a node
     *
     * @param {object} properties
     * @param {class} [constructorClass=Node.default]
     * @returns {*}
     */
  }, {
    key: "create",
    value: function create(properties) {
      var constructorClass = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Node;
      return new constructorClass(properties, this.body, this.images, this.groups, this.options, this.defaultOptions);
    }

/**
     *
     * @param {boolean} [clearPositions=false]
     */
  }, {
    key: "refresh",
    value: function refresh() {
      var _this3 = this;
      var clearPositions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      forEach$1(this.body.nodes, function (node, nodeId) {
        var data = _this3.body.data.nodes.get(nodeId);
        if (data !== undefined) {
          if (clearPositions === true) {
            node.setOptions({
              x: null,
              y: null
            });
          }
          node.setOptions({
            fixed: false
          });
          node.setOptions(data);
        }
      });
    }

/**
     * Returns the positions of the nodes.
     *
     * @param {Array.<Node.id> | string} [ids]  --> optional, can be array of nodeIds, can be string
     * @returns {{}}
     */
  }, {
    key: "getPositions",
    value: function getPositions(ids) {
      var dataArray = {};
      if (ids !== undefined) {
        if (_Array$isArray(ids) === true) {
          for (var i = 0; i < ids.length; i++) {
            if (this.body.nodes[ids[i]] !== undefined) {
              var node = this.body.nodes[ids[i]];
              dataArray[ids[i]] = {
                x: Math.round(node.x),
                y: Math.round(node.y)
              };
            }
          }
        } else {
          if (this.body.nodes[ids] !== undefined) {
            var _node = this.body.nodes[ids];
            dataArray[ids] = {
              x: Math.round(_node.x),
              y: Math.round(_node.y)
            };
          }
        }
      } else {
        for (var _i2 = 0; _i2 < this.body.nodeIndices.length; _i2++) {
          var _node2 = this.body.nodes[this.body.nodeIndices[_i2]];
          dataArray[this.body.nodeIndices[_i2]] = {
            x: Math.round(_node2.x),
            y: Math.round(_node2.y)
          };
        }
      }
      return dataArray;
    }

/**
     * Retrieves the x y position of a specific id.
     *
     * @param {string} id The id to retrieve.
     * @throws {TypeError} If no id is included.
     * @throws {ReferenceError} If an invalid id is provided.
     * @returns {{ x: number, y: number }} Returns X, Y canvas position of the node with given id.
     */
  }, {
    key: "getPosition",
    value: function getPosition(id) {
      if (id == undefined) {
        throw new TypeError("No id was specified for getPosition method.");
      } else if (this.body.nodes[id] == undefined) {
        throw new ReferenceError("NodeId provided for getPosition does not exist. Provided: ".concat(id));
      } else {
        return {
          x: Math.round(this.body.nodes[id].x),
          y: Math.round(this.body.nodes[id].y)
        };
      }
    }

/**
     * Load the XY positions of the nodes into the dataset.
     */
  }, {
    key: "storePositions",
    value: function storePositions() {
      // todo: add support for clusters and hierarchical.
      var dataArray = [];
      var dataset = this.body.data.nodes.getDataSet();
      var _iterator = _createForOfIteratorHelper$5(dataset.get()),
        _step;
      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var dsNode = _step.value;
          var id = dsNode.id;
          var bodyNode = this.body.nodes[id];
          var x = Math.round(bodyNode.x);
          var y = Math.round(bodyNode.y);
          if (dsNode.x !== x || dsNode.y !== y) {
            dataArray.push({
              id: id,
              x: x,
              y: y
            });
          }
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
      dataset.update(dataArray);
    }

/**
     * get the bounding box of a node.
     *
     * @param {Node.id} nodeId
     * @returns {j|*}
     */
  }, {
    key: "getBoundingBox",
    value: function getBoundingBox(nodeId) {
      if (this.body.nodes[nodeId] !== undefined) {
        return this.body.nodes[nodeId].shape.boundingBox;
      }
    }

/**
     * Get the Ids of nodes connected to this node.
     *
     * @param {Node.id} nodeId
     * @param {'to'|'from'|undefined} direction values 'from' and 'to' select respectively parent and child nodes only.
     *                                          Any other value returns both parent and child nodes.
     * @returns {Array}
     */
  }, {
    key: "getConnectedNodes",
    value: function getConnectedNodes(nodeId, direction) {
      var nodeList = [];
      if (this.body.nodes[nodeId] !== undefined) {
        var node = this.body.nodes[nodeId];
        var nodeObj = {}; // used to quickly check if node already exists
        for (var i = 0; i < node.edges.length; i++) {
          var edge = node.edges[i];
          if (direction !== "to" && edge.toId == node.id) {
            // these are double equals since ids can be numeric or string
            if (nodeObj[edge.fromId] === undefined) {
              nodeList.push(edge.fromId);
              nodeObj[edge.fromId] = true;
            }
          } else if (direction !== "from" && edge.fromId == node.id) {
            // these are double equals since ids can be numeric or string
            if (nodeObj[edge.toId] === undefined) {
              nodeList.push(edge.toId);
              nodeObj[edge.toId] = true;
            }
          }
        }
      }
      return nodeList;
    }

/**
     * Get the ids of the edges connected to this node.
     *
     * @param {Node.id} nodeId
     * @returns {*}
     */
  }, {
    key: "getConnectedEdges",
    value: function getConnectedEdges(nodeId) {
      var edgeList = [];
      if (this.body.nodes[nodeId] !== undefined) {
        var node = this.body.nodes[nodeId];
        for (var i = 0; i < node.edges.length; i++) {
          edgeList.push(node.edges[i].id);
        }
      } else {
        console.error("NodeId provided for getConnectedEdges does not exist. Provided: ", nodeId);
      }
      return edgeList;
    }

/**
     * Move a node.
     *
     * @param {Node.id} nodeId
     * @param {number} x
     * @param {number} y
     */
  }, {
    key: "moveNode",
    value: function moveNode(nodeId, x, y) {
      var _this4 = this;
      if (this.body.nodes[nodeId] !== undefined) {
        this.body.nodes[nodeId].x = Number(x);
        this.body.nodes[nodeId].y = Number(y);
        _setTimeout(function () {
          _this4.body.emitter.emit("startSimulation");
        }, 0);
      } else {
        console.error("Node id supplied to moveNode does not exist. Provided: ", nodeId);
      }
    }
  }]);
  return NodesHandler;
}();

var getExports$1 = {};
var get$6 = {
  get exports(){ return getExports$1; },
  set exports(v){ getExports$1 = v; },
};

var getExports = {};
var get$5 = {
  get exports(){ return getExports; },
  set exports(v){ getExports = v; },
};

var hasOwn$1 = hasOwnProperty_1;

var isDataDescriptor$1 = function (descriptor) {
  return descriptor !== undefined && (hasOwn$1(descriptor, 'value') || hasOwn$1(descriptor, 'writable'));
};

var $$4 = _export;
var call = functionCall;
var isObject$2$1 = isObject$j;
var anObject$1 = anObject$d;
var isDataDescriptor = isDataDescriptor$1;
var getOwnPropertyDescriptorModule = objectGetOwnPropertyDescriptor;
var getPrototypeOf = objectGetPrototypeOf;

// `Reflect.get` method
// https://tc39.es/ecma262/#sec-reflect.get
function get$4(target, propertyKey /* , receiver */) {
  var receiver = arguments.length < 3 ? target : arguments[2];
  var descriptor, prototype;
  if (anObject$1(target) === receiver) return target[propertyKey];
  descriptor = getOwnPropertyDescriptorModule.f(target, propertyKey);
  if (descriptor) return isDataDescriptor(descriptor)
    ? descriptor.value
    : descriptor.get === undefined ? undefined : call(descriptor.get, receiver);
  if (isObject$2$1(prototype = getPrototypeOf(target))) return get$4(prototype, propertyKey, receiver);
}

$$4({ target: 'Reflect', stat: true }, {
  get: get$4
});

var path$4 = path$y;

var get$3 = path$4.Reflect.get;

var parent$a = get$3;

var get$2 = parent$a;

var parent$9 = get$2;

var get$1 = parent$9;

var parent$8 = get$1;

var get$8 = parent$8;

(function (module) {
	module.exports = get$8;
} (get$5));

(function (module) {
	module.exports = getExports;
} (get$6));

var _Reflect$get = /*@__PURE__*/getDefaultExportFromCjs$1(getExports$1);

var getOwnPropertyDescriptorExports = {};
var getOwnPropertyDescriptor$2 = {
  get exports(){ return getOwnPropertyDescriptorExports; },
  set exports(v){ getOwnPropertyDescriptorExports = v; },
};

var parent$7 = getOwnPropertyDescriptor$5;

var getOwnPropertyDescriptor$1 = parent$7;

var parent$6 = getOwnPropertyDescriptor$1;

var getOwnPropertyDescriptor = parent$6;

(function (module) {
	module.exports = getOwnPropertyDescriptor;
} (getOwnPropertyDescriptor$2));

(function (module) {
	module.exports = getOwnPropertyDescriptorExports;
} (getOwnPropertyDescriptor$3));

var _Object$getOwnPropertyDescriptor = /*@__PURE__*/getDefaultExportFromCjs$1(getOwnPropertyDescriptorExports$1);

function _superPropBase(object, property) {
  while (!Object.prototype.hasOwnProperty.call(object, property)) {
    object = _getPrototypeOf(object);
    if (object === null) break;
  }
  return object;
}

var hypotExports = {};
var hypot$2 = {
  get exports(){ return hypotExports; },
  set exports(v){ hypotExports = v; },
};

var $$3 = _export;

// eslint-disable-next-line es/no-math-hypot -- required for testing
var $hypot = Math.hypot;
var abs$2 = Math.abs;
var sqrt = Math.sqrt;

// Chrome 77 bug
// https://bugs.chromium.org/p/v8/issues/detail?id=9546
var FORCED$2 = !!$hypot && $hypot(Infinity, NaN) !== Infinity;

// `Math.hypot` method
// https://tc39.es/ecma262/#sec-math.hypot
$$3({ target: 'Math', stat: true, arity: 2, forced: FORCED$2 }, {
  // eslint-disable-next-line no-unused-vars -- required for `.length`
  hypot: function hypot(value1, value2) {
    var sum = 0;
    var i = 0;
    var aLen = arguments.length;
    var larg = 0;
    var arg, div;
    while (i < aLen) {
      arg = abs$2(arguments[i++]);
      if (larg < arg) {
        div = larg / arg;
        sum = sum * div * div + 1;
        larg = arg;
      } else if (arg > 0) {
        div = arg / larg;
        sum += div * div;
      } else sum += arg;
    }
    return larg === Infinity ? Infinity : larg * sqrt(sum);
  }
});

var path$3 = path$y;

var hypot$1 = path$3.Math.hypot;

var parent$5 = hypot$1;

var hypot = parent$5;

(function (module) {
	module.exports = hypot;
} (hypot$2));

var _Math$hypot = /*@__PURE__*/getDefaultExportFromCjs$1(hypotExports);

/**
 * An edge connects two nodes and has a specific direction.
 */
var Edge = /*#__PURE__*/function () {
  /**
   * @param {object} options        values specific to this edge, must contain at least 'from' and 'to'
   * @param {object} body           shared state from Network instance
   * @param {Network.Images} imagelist  A list with images. Only needed when the edge has image arrows.
   * @param {object} globalOptions  options from the EdgesHandler instance
   * @param {object} defaultOptions default options from the EdgeHandler instance. Value and reference are constant
   */
  function Edge(options, body, imagelist, globalOptions, defaultOptions) {
    _classCallCheck(this, Edge);
    if (body === undefined) {
      throw new Error("No body provided");
    }

// Since globalOptions is constant in values as well as reference,
    // Following needs to be done only once.

this.options = bridgeObject(globalOptions);
    this.globalOptions = globalOptions;
    this.defaultOptions = defaultOptions;
    this.body = body;
    this.imagelist = imagelist;

// initialize variables
    this.id = undefined;
    this.fromId = undefined;
    this.toId = undefined;
    this.selected = false;
    this.hover = false;
    this.labelDirty = true;
    this.baseWidth = this.options.width;
    this.baseFontSize = this.options.font.size;
    this.from = undefined; // a node
    this.to = undefined; // a node

this.edgeType = undefined;
    this.connected = false;
    this.labelModule = new Label(this.body, this.options, true /* It's an edge label */);

this.setOptions(options);
  }

/**
   * Set or overwrite options for the edge
   *
   * @param {object} options  an object with options
   * @returns {undefined|boolean} undefined if no options, true if layout affecting data changed, false otherwise.
   */
  _createClass(Edge, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (!options) {
        return;
      }

// Following options if changed affect the layout.
      var affectsLayout = typeof options.physics !== "undefined" && this.options.physics !== options.physics || typeof options.hidden !== "undefined" && (this.options.hidden || false) !== (options.hidden || false) || typeof options.from !== "undefined" && this.options.from !== options.from || typeof options.to !== "undefined" && this.options.to !== options.to;
      Edge.parseOptions(this.options, options, true, this.globalOptions);
      if (options.id !== undefined) {
        this.id = options.id;
      }
      if (options.from !== undefined) {
        this.fromId = options.from;
      }
      if (options.to !== undefined) {
        this.toId = options.to;
      }
      if (options.title !== undefined) {
        this.title = options.title;
      }
      if (options.value !== undefined) {
        options.value = _parseFloat(options.value);
      }
      var pile = [options, this.options, this.defaultOptions];
      this.chooser = choosify("edge", pile);

// update label Module
      this.updateLabelModule(options);

// Update edge type, this if changed affects the layout.
      affectsLayout = this.updateEdgeType() || affectsLayout;

// if anything has been updates, reset the selection width and the hover width
      this._setInteractionWidths();

// A node is connected when it has a from and to node that both exist in the network.body.nodes.
      this.connect();
      return affectsLayout;
    }

/**
     *
     * @param {object} parentOptions
     * @param {object} newOptions
     * @param {boolean} [allowDeletion=false]
     * @param {object} [globalOptions={}]
     * @param {boolean} [copyFromGlobals=false]
     */
  }, {
    key: "getFormattingValues",
    value:
    /**
     *
     * @returns {ArrowOptions}
     */
    function getFormattingValues() {
      var toArrow = this.options.arrows.to === true || this.options.arrows.to.enabled === true;
      var fromArrow = this.options.arrows.from === true || this.options.arrows.from.enabled === true;
      var middleArrow = this.options.arrows.middle === true || this.options.arrows.middle.enabled === true;
      var inheritsColor = this.options.color.inherit;
      var values = {
        toArrow: toArrow,
        toArrowScale: this.options.arrows.to.scaleFactor,
        toArrowType: this.options.arrows.to.type,
        toArrowSrc: this.options.arrows.to.src,
        toArrowImageWidth: this.options.arrows.to.imageWidth,
        toArrowImageHeight: this.options.arrows.to.imageHeight,
        middleArrow: middleArrow,
        middleArrowScale: this.options.arrows.middle.scaleFactor,
        middleArrowType: this.options.arrows.middle.type,
        middleArrowSrc: this.options.arrows.middle.src,
        middleArrowImageWidth: this.options.arrows.middle.imageWidth,
        middleArrowImageHeight: this.options.arrows.middle.imageHeight,
        fromArrow: fromArrow,
        fromArrowScale: this.options.arrows.from.scaleFactor,
        fromArrowType: this.options.arrows.from.type,
        fromArrowSrc: this.options.arrows.from.src,
        fromArrowImageWidth: this.options.arrows.from.imageWidth,
        fromArrowImageHeight: this.options.arrows.from.imageHeight,
        arrowStrikethrough: this.options.arrowStrikethrough,
        color: inheritsColor ? undefined : this.options.color.color,
        inheritsColor: inheritsColor,
        opacity: this.options.color.opacity,
        hidden: this.options.hidden,
        length: this.options.length,
        shadow: this.options.shadow.enabled,
        shadowColor: this.options.shadow.color,
        shadowSize: this.options.shadow.size,
        shadowX: this.options.shadow.x,
        shadowY: this.options.shadow.y,
        dashes: this.options.dashes,
        width: this.options.width,
        background: this.options.background.enabled,
        backgroundColor: this.options.background.color,
        backgroundSize: this.options.background.size,
        backgroundDashes: this.options.background.dashes
      };
      if (this.selected || this.hover) {
        if (this.chooser === true) {
          if (this.selected) {
            var selectedWidth = this.options.selectionWidth;
            if (typeof selectedWidth === "function") {
              values.width = selectedWidth(values.width);
            } else if (typeof selectedWidth === "number") {
              values.width += selectedWidth;
            }
            values.width = Math.max(values.width, 0.3 / this.body.view.scale);
            values.color = this.options.color.highlight;
            values.shadow = this.options.shadow.enabled;
          } else if (this.hover) {
            var hoverWidth = this.options.hoverWidth;
            if (typeof hoverWidth === "function") {
              values.width = hoverWidth(values.width);
            } else if (typeof hoverWidth === "number") {
              values.width += hoverWidth;
            }
            values.width = Math.max(values.width, 0.3 / this.body.view.scale);
            values.color = this.options.color.hover;
            values.shadow = this.options.shadow.enabled;
          }
        } else if (typeof this.chooser === "function") {
          this.chooser(values, this.options.id, this.selected, this.hover);
          if (values.color !== undefined) {
            values.inheritsColor = false;
          }
          if (values.shadow === false) {
            if (values.shadowColor !== this.options.shadow.color || values.shadowSize !== this.options.shadow.size || values.shadowX !== this.options.shadow.x || values.shadowY !== this.options.shadow.y) {
              values.shadow = true;
            }
          }
        }
      } else {
        values.shadow = this.options.shadow.enabled;
        values.width = Math.max(values.width, 0.3 / this.body.view.scale);
      }
      return values;
    }

/**
     * update the options in the label module
     *
     * @param {object} options
     */
  }, {
    key: "updateLabelModule",
    value: function updateLabelModule(options) {
      var pile = [options, this.options, this.globalOptions,
      // Currently set global edge options
      this.defaultOptions];
      this.labelModule.update(this.options, pile);
      if (this.labelModule.baseSize !== undefined) {
        this.baseFontSize = this.labelModule.baseSize;
      }
    }

/**
     * update the edge type, set the options
     *
     * @returns {boolean}
     */
  }, {
    key: "updateEdgeType",
    value: function updateEdgeType() {
      var smooth = this.options.smooth;
      var dataChanged = false;
      var changeInType = true;
      if (this.edgeType !== undefined) {
        if (this.edgeType instanceof BezierEdgeDynamic && smooth.enabled === true && smooth.type === "dynamic" || this.edgeType instanceof CubicBezierEdge && smooth.enabled === true && smooth.type === "cubicBezier" || this.edgeType instanceof BezierEdgeStatic && smooth.enabled === true && smooth.type !== "dynamic" && smooth.type !== "cubicBezier" || this.edgeType instanceof StraightEdge && smooth.type.enabled === false) {
          changeInType = false;
        }
        if (changeInType === true) {
          dataChanged = this.cleanup();
        }
      }
      if (changeInType === true) {
        if (smooth.enabled === true) {
          if (smooth.type === "dynamic") {
            dataChanged = true;
            this.edgeType = new BezierEdgeDynamic(this.options, this.body, this.labelModule);
          } else if (smooth.type === "cubicBezier") {
            this.edgeType = new CubicBezierEdge(this.options, this.body, this.labelModule);
          } else {
            this.edgeType = new BezierEdgeStatic(this.options, this.body, this.labelModule);
          }
        } else {
          this.edgeType = new StraightEdge(this.options, this.body, this.labelModule);
        }
      } else {
        // if nothing changes, we just set the options.
        this.edgeType.setOptions(this.options);
      }
      return dataChanged;
    }

/**
     * Connect an edge to its nodes
     */
  }, {
    key: "connect",
    value: function connect() {
      this.disconnect();
      this.from = this.body.nodes[this.fromId] || undefined;
      this.to = this.body.nodes[this.toId] || undefined;
      this.connected = this.from !== undefined && this.to !== undefined;
      if (this.connected === true) {
        this.from.attachEdge(this);
        this.to.attachEdge(this);
      } else {
        if (this.from) {
          this.from.detachEdge(this);
        }
        if (this.to) {
          this.to.detachEdge(this);
        }
      }
      this.edgeType.connect();
    }

/**
     * Disconnect an edge from its nodes
     */
  }, {
    key: "disconnect",
    value: function disconnect() {
      if (this.from) {
        this.from.detachEdge(this);
        this.from = undefined;
      }
      if (this.to) {
        this.to.detachEdge(this);
        this.to = undefined;
      }
      this.connected = false;
    }

/**
     * get the title of this edge.
     *
     * @returns {string} title    The title of the edge, or undefined when no title
     *                           has been set.
     */
  }, {
    key: "getTitle",
    value: function getTitle() {
      return this.title;
    }

/**
     * Retrieve the value of the edge. Can be undefined
     *
     * @returns {number} value
     */
  }, {
    key: "getValue",
    value: function getValue() {
      return this.options.value;
    }

/**
     * Adjust the value range of the edge. The edge will adjust it's width
     * based on its value.
     *
     * @param {number} min
     * @param {number} max
     * @param {number} total
     */
  }, {
    key: "setValueRange",
    value: function setValueRange(min, max, total) {
      if (this.options.value !== undefined) {
        var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
        var widthDiff = this.options.scaling.max - this.options.scaling.min;
        if (this.options.scaling.label.enabled === true) {
          var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
          this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
        }
        this.options.width = this.options.scaling.min + scale * widthDiff;
      } else {
        this.options.width = this.baseWidth;
        this.options.font.size = this.baseFontSize;
      }
      this._setInteractionWidths();
      this.updateLabelModule();
    }

/**
     *
     * @private
     */
  }, {
    key: "_setInteractionWidths",
    value: function _setInteractionWidths() {
      if (typeof this.options.hoverWidth === "function") {
        this.edgeType.hoverWidth = this.options.hoverWidth(this.options.width);
      } else {
        this.edgeType.hoverWidth = this.options.hoverWidth + this.options.width;
      }
      if (typeof this.options.selectionWidth === "function") {
        this.edgeType.selectionWidth = this.options.selectionWidth(this.options.width);
      } else {
        this.edgeType.selectionWidth = this.options.selectionWidth + this.options.width;
      }
    }

/**
     * Redraw a edge
     * Draw this edge in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     *
     * @param {CanvasRenderingContext2D}   ctx
     */
  }, {
    key: "draw",
    value: function draw(ctx) {
      var values = this.getFormattingValues();
      if (values.hidden) {
        return;
      }

// get the via node from the edge type
      var viaNode = this.edgeType.getViaNode();

// draw line and label
      this.edgeType.drawLine(ctx, values, this.selected, this.hover, viaNode);
      this.drawLabel(ctx, viaNode);
    }

/**
     * Redraw arrows
     * Draw this arrows in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     *
     * @param {CanvasRenderingContext2D}   ctx
     */
  }, {
    key: "drawArrows",
    value: function drawArrows(ctx) {
      var values = this.getFormattingValues();
      if (values.hidden) {
        return;
      }

// get the via node from the edge type
      var viaNode = this.edgeType.getViaNode();
      var arrowData = {};

// restore edge targets to defaults
      this.edgeType.fromPoint = this.edgeType.from;
      this.edgeType.toPoint = this.edgeType.to;

// from and to arrows give a different end point for edges. we set them here
      if (values.fromArrow) {
        arrowData.from = this.edgeType.getArrowData(ctx, "from", viaNode, this.selected, this.hover, values);
        if (values.arrowStrikethrough === false) this.edgeType.fromPoint = arrowData.from.core;
        if (values.fromArrowSrc) {
          arrowData.from.image = this.imagelist.load(values.fromArrowSrc);
        }
        if (values.fromArrowImageWidth) {
          arrowData.from.imageWidth = values.fromArrowImageWidth;
        }
        if (values.fromArrowImageHeight) {
          arrowData.from.imageHeight = values.fromArrowImageHeight;
        }
      }
      if (values.toArrow) {
        arrowData.to = this.edgeType.getArrowData(ctx, "to", viaNode, this.selected, this.hover, values);
        if (values.arrowStrikethrough === false) this.edgeType.toPoint = arrowData.to.core;
        if (values.toArrowSrc) {
          arrowData.to.image = this.imagelist.load(values.toArrowSrc);
        }
        if (values.toArrowImageWidth) {
          arrowData.to.imageWidth = values.toArrowImageWidth;
        }
        if (values.toArrowImageHeight) {
          arrowData.to.imageHeight = values.toArrowImageHeight;
        }
      }

// the middle arrow depends on the line, which can depend on the to and from arrows so we do this one lastly.
      if (values.middleArrow) {
        arrowData.middle = this.edgeType.getArrowData(ctx, "middle", viaNode, this.selected, this.hover, values);
        if (values.middleArrowSrc) {
          arrowData.middle.image = this.imagelist.load(values.middleArrowSrc);
        }
        if (values.middleArrowImageWidth) {
          arrowData.middle.imageWidth = values.middleArrowImageWidth;
        }
        if (values.middleArrowImageHeight) {
          arrowData.middle.imageHeight = values.middleArrowImageHeight;
        }
      }
      if (values.fromArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.from);
      }
      if (values.middleArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.middle);
      }
      if (values.toArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.to);
      }
    }

/**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Node} viaNode
     */
  }, {
    key: "drawLabel",
    value: function drawLabel(ctx, viaNode) {
      if (this.options.label !== undefined) {
        // set style
        var node1 = this.from;
        var node2 = this.to;
        if (this.labelModule.differentState(this.selected, this.hover)) {
          this.labelModule.getTextSize(ctx, this.selected, this.hover);
        }
        var point;
        if (node1.id != node2.id) {
          this.labelModule.pointToSelf = false;
          point = this.edgeType.getPoint(0.5, viaNode);
          ctx.save();
          var rotationPoint = this._getRotation(ctx);
          if (rotationPoint.angle != 0) {
            ctx.translate(rotationPoint.x, rotationPoint.y);
            ctx.rotate(rotationPoint.angle);
          }

// draw the label
          this.labelModule.draw(ctx, point.x, point.y, this.selected, this.hover);

/*
          // Useful debug code: draw a border around the label
          // This should **not** be enabled in production!
          var size = this.labelModule.getSize();; // ;; intentional so lint catches it
          ctx.strokeStyle = "#ff0000";
          ctx.strokeRect(size.left, size.top, size.width, size.height);
          // End  debug code
          */

ctx.restore();
        } else {
          // Ignore the orientations.
          this.labelModule.pointToSelf = true;

// get circle coordinates
          var coordinates = getSelfRefCoordinates(ctx, this.options.selfReference.angle, this.options.selfReference.size, node1);
          point = this._pointOnCircle(coordinates.x, coordinates.y, this.options.selfReference.size, this.options.selfReference.angle);
          this.labelModule.draw(ctx, point.x, point.y, this.selected, this.hover);
        }
      }
    }

/**
     * Determine all visual elements of this edge instance, in which the given
     * point falls within the bounding shape.
     *
     * @param {point} point
     * @returns {Array.<edgeClickItem|edgeLabelClickItem>} list with the items which are on the point
     */
  }, {
    key: "getItemsOnPoint",
    value: function getItemsOnPoint(point) {
      var ret = [];
      if (this.labelModule.visible()) {
        var rotationPoint = this._getRotation();
        if (pointInRect(this.labelModule.getSize(), point, rotationPoint)) {
          ret.push({
            edgeId: this.id,
            labelId: 0
          });
        }
      }
      var obj = {
        left: point.x,
        top: point.y
      };
      if (this.isOverlappingWith(obj)) {
        ret.push({
          edgeId: this.id
        });
      }
      return ret;
    }

/**
     * Check if this object is overlapping with the provided object
     *
     * @param {object} obj   an object with parameters left, top
     * @returns {boolean}     True if location is located on the edge
     */
  }, {
    key: "isOverlappingWith",
    value: function isOverlappingWith(obj) {
      if (this.connected) {
        var distMax = 10;
        var xFrom = this.from.x;
        var yFrom = this.from.y;
        var xTo = this.to.x;
        var yTo = this.to.y;
        var xObj = obj.left;
        var yObj = obj.top;
        var dist = this.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, xObj, yObj);
        return dist < distMax;
      } else {
        return false;
      }
    }

/**
     * Determine the rotation point, if any.
     *
     * @param {CanvasRenderingContext2D} [ctx] if passed, do a recalculation of the label size
     * @returns {rotationPoint} the point to rotate around and the angle in radians to rotate
     * @private
     */
  }, {
    key: "_getRotation",
    value: function _getRotation(ctx) {
      var viaNode = this.edgeType.getViaNode();
      var point = this.edgeType.getPoint(0.5, viaNode);
      if (ctx !== undefined) {
        this.labelModule.calculateLabelSize(ctx, this.selected, this.hover, point.x, point.y);
      }
      var ret = {
        x: point.x,
        y: this.labelModule.size.yLine,
        angle: 0
      };
      if (!this.labelModule.visible()) {
        return ret; // Don't even bother doing the atan2, there's nothing to draw
      }

if (this.options.font.align === "horizontal") {
        return ret; // No need to calculate angle
      }

var dy = this.from.y - this.to.y;
      var dx = this.from.x - this.to.x;
      var angle = Math.atan2(dy, dx); // radians

// rotate so that label is readable
      if (angle < -1 && dx < 0 || angle > 0 && dx < 0) {
        angle += Math.PI;
      }
      ret.angle = angle;
      return ret;
    }

/**
     * Get a point on a circle
     *
     * @param {number} x
     * @param {number} y
     * @param {number} radius
     * @param {number} angle
     * @returns {object} point
     * @private
     */
  }, {
    key: "_pointOnCircle",
    value: function _pointOnCircle(x, y, radius, angle) {
      return {
        x: x + radius * Math.cos(angle),
        y: y - radius * Math.sin(angle)
      };
    }

/**
     * Sets selected state to true
     */
  }, {
    key: "select",
    value: function select() {
      this.selected = true;
    }

/**
     * Sets selected state to false
     */
  }, {
    key: "unselect",
    value: function unselect() {
      this.selected = false;
    }

/**
     * cleans all required things on delete
     *
     * @returns {*}
     */
  }, {
    key: "cleanup",
    value: function cleanup() {
      return this.edgeType.cleanup();
    }

/**
     * Remove edge from the list and perform necessary cleanup.
     */
  }, {
    key: "remove",
    value: function remove() {
      this.cleanup();
      this.disconnect();
      delete this.body.edges[this.id];
    }

/**
     * Check if both connecting nodes exist
     *
     * @returns {boolean}
     */
  }, {
    key: "endPointsValid",
    value: function endPointsValid() {
      return this.body.nodes[this.fromId] !== undefined && this.body.nodes[this.toId] !== undefined;
    }
  }], [{
    key: "parseOptions",
    value: function parseOptions(parentOptions, newOptions) {
      var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
      var copyFromGlobals = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
      var fields = ["endPointOffset", "arrowStrikethrough", "id", "from", "hidden", "hoverWidth", "labelHighlightBold", "length", "line", "opacity", "physics", "scaling", "selectionWidth", "selfReferenceSize", "selfReference", "to", "title", "value", "width", "font", "chosen", "widthConstraint"];

// only deep extend the items in the field array. These do not have shorthand.
      selectiveDeepExtend(fields, parentOptions, newOptions, allowDeletion);

// Only use endPointOffset values (from and to) if it's valid values
      if (newOptions.endPointOffset !== undefined && newOptions.endPointOffset.from !== undefined) {
        if (_Number$isFinite(newOptions.endPointOffset.from)) {
          parentOptions.endPointOffset.from = newOptions.endPointOffset.from;
        } else {
          parentOptions.endPointOffset.from = globalOptions.endPointOffset.from !== undefined ? globalOptions.endPointOffset.from : 0;
          console.error("endPointOffset.from is not a valid number");
        }
      }
      if (newOptions.endPointOffset !== undefined && newOptions.endPointOffset.to !== undefined) {
        if (_Number$isFinite(newOptions.endPointOffset.to)) {
          parentOptions.endPointOffset.to = newOptions.endPointOffset.to;
        } else {
          parentOptions.endPointOffset.to = globalOptions.endPointOffset.to !== undefined ? globalOptions.endPointOffset.to : 0;
          console.error("endPointOffset.to is not a valid number");
        }
      }

// Only copy label if it's a legal value.
      if (isValidLabel(newOptions.label)) {
        parentOptions.label = newOptions.label;
      } else if (!isValidLabel(parentOptions.label)) {
        parentOptions.label = undefined;
      }
      mergeOptions(parentOptions, newOptions, "smooth", globalOptions);
      mergeOptions(parentOptions, newOptions, "shadow", globalOptions);
      mergeOptions(parentOptions, newOptions, "background", globalOptions);
      if (newOptions.dashes !== undefined && newOptions.dashes !== null) {
        parentOptions.dashes = newOptions.dashes;
      } else if (allowDeletion === true && newOptions.dashes === null) {
        parentOptions.dashes = _Object$create$1(globalOptions.dashes); // this sets the pointer of the option back to the global option.
      }

// set the scaling newOptions
      if (newOptions.scaling !== undefined && newOptions.scaling !== null) {
        if (newOptions.scaling.min !== undefined) {
          parentOptions.scaling.min = newOptions.scaling.min;
        }
        if (newOptions.scaling.max !== undefined) {
          parentOptions.scaling.max = newOptions.scaling.max;
        }
        mergeOptions(parentOptions.scaling, newOptions.scaling, "label", globalOptions.scaling);
      } else if (allowDeletion === true && newOptions.scaling === null) {
        parentOptions.scaling = _Object$create$1(globalOptions.scaling); // this sets the pointer of the option back to the global option.
      }

// handle multiple input cases for arrows
      if (newOptions.arrows !== undefined && newOptions.arrows !== null) {
        if (typeof newOptions.arrows === "string") {
          var arrows = newOptions.arrows.toLowerCase();
          parentOptions.arrows.to.enabled = _indexOfInstanceProperty(arrows).call(arrows, "to") != -1;
          parentOptions.arrows.middle.enabled = _indexOfInstanceProperty(arrows).call(arrows, "middle") != -1;
          parentOptions.arrows.from.enabled = _indexOfInstanceProperty(arrows).call(arrows, "from") != -1;
        } else if (_typeof(newOptions.arrows) === "object") {
          mergeOptions(parentOptions.arrows, newOptions.arrows, "to", globalOptions.arrows);
          mergeOptions(parentOptions.arrows, newOptions.arrows, "middle", globalOptions.arrows);
          mergeOptions(parentOptions.arrows, newOptions.arrows, "from", globalOptions.arrows);
        } else {
          throw new Error("The arrow newOptions can only be an object or a string. Refer to the documentation. You used:" + _JSON$stringify(newOptions.arrows));
        }
      } else if (allowDeletion === true && newOptions.arrows === null) {
        parentOptions.arrows = _Object$create$1(globalOptions.arrows); // this sets the pointer of the option back to the global option.
      }

// handle multiple input cases for color
      if (newOptions.color !== undefined && newOptions.color !== null) {
        var fromColor = isString$1(newOptions.color) ? {
          color: newOptions.color,
          highlight: newOptions.color,
          hover: newOptions.color,
          inherit: false,
          opacity: 1
        } : newOptions.color;
        var toColor = parentOptions.color;

// If passed, fill in values from default options - required in the case of no prototype bridging
        if (copyFromGlobals) {
          deepExtend(toColor, globalOptions.color, false, allowDeletion);
        } else {
          // Clear local properties - need to do it like this in order to retain prototype bridges
          for (var i in toColor) {
            if (Object.prototype.hasOwnProperty.call(toColor, i)) {
              delete toColor[i];
            }
          }
        }
        if (isString$1(toColor)) {
          toColor.color = toColor;
          toColor.highlight = toColor;
          toColor.hover = toColor;
          toColor.inherit = false;
          if (fromColor.opacity === undefined) {
            toColor.opacity = 1.0; // set default
          }
        } else {
          var colorsDefined = false;
          if (fromColor.color !== undefined) {
            toColor.color = fromColor.color;
            colorsDefined = true;
          }
          if (fromColor.highlight !== undefined) {
            toColor.highlight = fromColor.highlight;
            colorsDefined = true;
          }
          if (fromColor.hover !== undefined) {
            toColor.hover = fromColor.hover;
            colorsDefined = true;
          }
          if (fromColor.inherit !== undefined) {
            toColor.inherit = fromColor.inherit;
          }
          if (fromColor.opacity !== undefined) {
            toColor.opacity = Math.min(1, Math.max(0, fromColor.opacity));
          }
          if (colorsDefined === true) {
            toColor.inherit = false;
          } else {
            if (toColor.inherit === undefined) {
              toColor.inherit = "from"; // Set default
            }
          }
        }
      } else if (allowDeletion === true && newOptions.color === null) {
        parentOptions.color = bridgeObject(globalOptions.color); // set the object back to the global options
      }

if (allowDeletion === true && newOptions.font === null) {
        parentOptions.font = bridgeObject(globalOptions.font); // set the object back to the global options
      }

if (Object.prototype.hasOwnProperty.call(newOptions, "selfReferenceSize")) {
        console.warn("The selfReferenceSize property has been deprecated. Please use selfReference property instead. The selfReference can be set like thise selfReference:{size:30, angle:Math.PI / 4}");
        parentOptions.selfReference.size = newOptions.selfReferenceSize;
      }
    }
  }]);
  return Edge;
}();

/**
 * Handler for Edges
 */
var EdgesHandler = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Array.<Image>} images
   * @param {Array.<Group>} groups
   */
  function EdgesHandler(body, images, groups) {
    var _context,
      _this = this;
    _classCallCheck(this, EdgesHandler);
    this.body = body;
    this.images = images;
    this.groups = groups;

// create the edge API in the body container
    this.body.functions.createEdge = _bindInstanceProperty$1(_context = this.create).call(_context, this);
    this.edgesListeners = {
      add: function add(event, params) {
        _this.add(params.items);
      },
      update: function update(event, params) {
        _this.update(params.items);
      },
      remove: function remove(event, params) {
        _this.remove(params.items);
      }
    };
    this.options = {};
    this.defaultOptions = {
      arrows: {
        to: {
          enabled: false,
          scaleFactor: 1,
          type: "arrow"
        },
        // boolean / {arrowScaleFactor:1} / {enabled: false, arrowScaleFactor:1}
        middle: {
          enabled: false,
          scaleFactor: 1,
          type: "arrow"
        },
        from: {
          enabled: false,
          scaleFactor: 1,
          type: "arrow"
        }
      },
      endPointOffset: {
        from: 0,
        to: 0
      },
      arrowStrikethrough: true,
      color: {
        color: "#848484",
        highlight: "#848484",
        hover: "#848484",
        inherit: "from",
        opacity: 1.0
      },
      dashes: false,
      font: {
        color: "#343434",
        size: 14,
        // px
        face: "arial",
        background: "none",
        strokeWidth: 2,
        // px
        strokeColor: "#ffffff",
        align: "horizontal",
        multi: false,
        vadjust: 0,
        bold: {
          mod: "bold"
        },
        boldital: {
          mod: "bold italic"
        },
        ital: {
          mod: "italic"
        },
        mono: {
          mod: "",
          size: 15,
          // px
          face: "courier new",
          vadjust: 2
        }
      },
      hidden: false,
      hoverWidth: 1.5,
      label: undefined,
      labelHighlightBold: true,
      length: undefined,
      physics: true,
      scaling: {
        min: 1,
        max: 15,
        label: {
          enabled: true,
          min: 14,
          max: 30,
          maxVisible: 30,
          drawThreshold: 5
        },
        customScalingFunction: function customScalingFunction(min, max, total, value) {
          if (max === min) {
            return 0.5;
          } else {
            var scale = 1 / (max - min);
            return Math.max(0, (value - min) * scale);
          }
        }
      },
      selectionWidth: 1.5,
      selfReference: {
        size: 20,
        angle: Math.PI / 4,
        renderBehindTheNode: true
      },
      shadow: {
        enabled: false,
        color: "rgba(0,0,0,0.5)",
        size: 10,
        x: 5,
        y: 5
      },
      background: {
        enabled: false,
        color: "rgba(111,111,111,1)",
        size: 10,
        dashes: false
      },
      smooth: {
        enabled: true,
        type: "dynamic",
        forceDirection: "none",
        roundness: 0.5
      },
      title: undefined,
      width: 1,
      value: undefined
    };
    deepExtend(this.options, this.defaultOptions);
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(EdgesHandler, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this2 = this,
        _context2,
        _context3;
      // this allows external modules to force all dynamic curves to turn static.
      this.body.emitter.on("_forceDisableDynamicCurves", function (type) {
        var emit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
        if (type === "dynamic") {
          type = "continuous";
        }
        var dataChanged = false;
        for (var edgeId in _this2.body.edges) {
          if (Object.prototype.hasOwnProperty.call(_this2.body.edges, edgeId)) {
            var edge = _this2.body.edges[edgeId];
            var edgeData = _this2.body.data.edges.get(edgeId);

// only forcibly remove the smooth curve if the data has been set of the edge has the smooth curves defined.
            // this is because a change in the global would not affect these curves.
            if (edgeData != null) {
              var smoothOptions = edgeData.smooth;
              if (smoothOptions !== undefined) {
                if (smoothOptions.enabled === true && smoothOptions.type === "dynamic") {
                  if (type === undefined) {
                    edge.setOptions({
                      smooth: false
                    });
                  } else {
                    edge.setOptions({
                      smooth: {
                        type: type
                      }
                    });
                  }
                  dataChanged = true;
                }
              }
            }
          }
        }
        if (emit === true && dataChanged === true) {
          _this2.body.emitter.emit("_dataChanged");
        }
      });

// this is called when options of EXISTING nodes or edges have changed.
      //
      // NOTE: Not true, called when options have NOT changed, for both existing as well as new nodes.
      //       See update() for logic.
      // TODO: Verify and examine the consequences of this. It might still trigger when
      //       non-option fields have changed, but then reconnecting edges is still useless.
      //       Alternatively, it might also be called when edges are removed.
      //
      this.body.emitter.on("_dataUpdated", function () {
        _this2.reconnectEdges();
      });

// refresh the edges. Used when reverting from hierarchical layout
      this.body.emitter.on("refreshEdges", _bindInstanceProperty$1(_context2 = this.refresh).call(_context2, this));
      this.body.emitter.on("refresh", _bindInstanceProperty$1(_context3 = this.refresh).call(_context3, this));
      this.body.emitter.on("destroy", function () {
        forEach$1(_this2.edgesListeners, function (callback, event) {
          if (_this2.body.data.edges) _this2.body.data.edges.off(event, callback);
        });
        delete _this2.body.functions.createEdge;
        delete _this2.edgesListeners.add;
        delete _this2.edgesListeners.update;
        delete _this2.edgesListeners.remove;
        delete _this2.edgesListeners;
      });
    }

/**
     *
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        // use the parser from the Edge class to fill in all shorthand notations
        Edge.parseOptions(this.options, options, true, this.defaultOptions, true);

// update smooth settings in all edges
        var dataChanged = false;
        if (options.smooth !== undefined) {
          for (var edgeId in this.body.edges) {
            if (Object.prototype.hasOwnProperty.call(this.body.edges, edgeId)) {
              dataChanged = this.body.edges[edgeId].updateEdgeType() || dataChanged;
            }
          }
        }

// update fonts in all edges
        if (options.font !== undefined) {
          for (var _edgeId in this.body.edges) {
            if (Object.prototype.hasOwnProperty.call(this.body.edges, _edgeId)) {
              this.body.edges[_edgeId].updateLabelModule();
            }
          }
        }

// update the state of the variables if needed
        if (options.hidden !== undefined || options.physics !== undefined || dataChanged === true) {
          this.body.emitter.emit("_dataChanged");
        }
      }
    }

/**
     * Load edges by reading the data table
     *
     * @param {Array | DataSet | DataView} edges    The data containing the edges.
     * @param {boolean} [doNotEmit=false] - Suppress data changed event.
     * @private
     */
  }, {
    key: "setData",
    value: function setData(edges) {
      var _this3 = this;
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var oldEdgesData = this.body.data.edges;
      if (isDataViewLike("id", edges)) {
        this.body.data.edges = edges;
      } else if (_Array$isArray(edges)) {
        this.body.data.edges = new DataSet();
        this.body.data.edges.add(edges);
      } else if (!edges) {
        this.body.data.edges = new DataSet();
      } else {
        throw new TypeError("Array or DataSet expected");
      }

// TODO: is this null or undefined or false?
      if (oldEdgesData) {
        // unsubscribe from old dataset
        forEach$1(this.edgesListeners, function (callback, event) {
          oldEdgesData.off(event, callback);
        });
      }

// remove drawn edges
      this.body.edges = {};

// TODO: is this null or undefined or false?
      if (this.body.data.edges) {
        // subscribe to new dataset
        forEach$1(this.edgesListeners, function (callback, event) {
          _this3.body.data.edges.on(event, callback);
        });

// draw all new nodes
        var ids = this.body.data.edges.getIds();
        this.add(ids, true);
      }
      this.body.emitter.emit("_adjustEdgesForHierarchicalLayout");
      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     * Add edges
     *
     * @param {number[] | string[]} ids
     * @param {boolean} [doNotEmit=false]
     * @private
     */
  }, {
    key: "add",
    value: function add(ids) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var edges = this.body.edges;
      var edgesData = this.body.data.edges;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        var oldEdge = edges[id];
        if (oldEdge) {
          oldEdge.disconnect();
        }
        var data = edgesData.get(id, {
          showInternalIds: true
        });
        edges[id] = this.create(data);
      }
      this.body.emitter.emit("_adjustEdgesForHierarchicalLayout");
      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     * Update existing edges, or create them when not yet existing
     *
     * @param {number[] | string[]} ids
     * @private
     */
  }, {
    key: "update",
    value: function update(ids) {
      var edges = this.body.edges;
      var edgesData = this.body.data.edges;
      var dataChanged = false;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        var data = edgesData.get(id);
        var edge = edges[id];
        if (edge !== undefined) {
          // update edge
          edge.disconnect();
          dataChanged = edge.setOptions(data) || dataChanged; // if a support node is added, data can be changed.
          edge.connect();
        } else {
          // create edge
          this.body.edges[id] = this.create(data);
          dataChanged = true;
        }
      }
      if (dataChanged === true) {
        this.body.emitter.emit("_adjustEdgesForHierarchicalLayout");
        this.body.emitter.emit("_dataChanged");
      } else {
        this.body.emitter.emit("_dataUpdated");
      }
    }

/**
     * Remove existing edges. Non existing ids will be ignored
     *
     * @param {number[] | string[]} ids
     * @param {boolean} [emit=true]
     * @private
     */
  }, {
    key: "remove",
    value: function remove(ids) {
      var emit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      if (ids.length === 0) return; // early out

/**
     * Refreshes Edge Handler
     */
  }, {
    key: "refresh",
    value: function refresh() {
      var _this4 = this;
      forEach$1(this.body.edges, function (edge, edgeId) {
        var data = _this4.body.data.edges.get(edgeId);
        if (data !== undefined) {
          edge.setOptions(data);
        }
      });
    }

/**
     *
     * @param {object} properties
     * @returns {Edge}
     */
  }, {
    key: "create",
    value: function create(properties) {
      return new Edge(properties, this.body, this.images, this.options, this.defaultOptions);
    }

/**
     * Reconnect all edges
     *
     * @private
     */
  }, {
    key: "reconnectEdges",
    value: function reconnectEdges() {
      var id;
      var nodes = this.body.nodes;
      var edges = this.body.edges;
      for (id in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, id)) {
          nodes[id].edges = [];
        }
      }
      for (id in edges) {
        if (Object.prototype.hasOwnProperty.call(edges, id)) {
          var edge = edges[id];
          edge.from = null;
          edge.to = null;
          edge.connect();
        }
      }
    }

/**
     *
     * @param {Edge.id} edgeId
     * @returns {Array}
     */
  }, {
    key: "getConnectedNodes",
    value: function getConnectedNodes(edgeId) {
      var nodeList = [];
      if (this.body.edges[edgeId] !== undefined) {
        var edge = this.body.edges[edgeId];
        if (edge.fromId !== undefined) {
          nodeList.push(edge.fromId);
        }
        if (edge.toId !== undefined) {
          nodeList.push(edge.toId);
        }
      }
      return nodeList;
    }

/**
     * There is no direct relation between the nodes and the edges DataSet,
     * so the right place to do call this is in the handler for event `_dataUpdated`.
     */
  }, {
    key: "_updateState",
    value: function _updateState() {
      this._addMissingEdges();
      this._removeInvalidEdges();
    }

/**
     * Scan for missing nodes and remove corresponding edges, if any.
     *
     * @private
     */
  }, {
    key: "_removeInvalidEdges",
    value: function _removeInvalidEdges() {
      var _this5 = this;
      var edgesToDelete = [];
      forEach$1(this.body.edges, function (edge, id) {
        var toNode = _this5.body.nodes[edge.toId];
        var fromNode = _this5.body.nodes[edge.fromId];

// Skip clustering edges here, let the Clustering module handle those
        if (toNode !== undefined && toNode.isCluster === true || fromNode !== undefined && fromNode.isCluster === true) {
          return;
        }
        if (toNode === undefined || fromNode === undefined) {
          edgesToDelete.push(id);
        }
      });
      this.remove(edgesToDelete, false);
    }

/**
     * add all edges from dataset that are not in the cached state
     *
     * @private
     */
  }, {
    key: "_addMissingEdges",
    value: function _addMissingEdges() {
      var edgesData = this.body.data.edges;
      if (edgesData === undefined || edgesData === null) {
        return; // No edges DataSet yet; can happen on startup
      }

var edges = this.body.edges;
      var addIds = [];
      _forEachInstanceProperty(edgesData).call(edgesData, function (edgeData, edgeId) {
        var edge = edges[edgeId];
        if (edge === undefined) {
          addIds.push(edgeId);
        }
      });
      this.add(addIds, true);
    }
  }]);
  return EdgesHandler;
}();

/**
 * Barnes Hut Solver
 */
var BarnesHutSolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function BarnesHutSolver(body, physicsBody, options) {
    _classCallCheck(this, BarnesHutSolver);
    this.body = body;
    this.physicsBody = physicsBody;
    this.barnesHutTree;
    this.setOptions(options);
    this._rng = Alea("BARNES HUT SOLVER");

// debug: show grid
    // this.body.emitter.on("afterDrawing", (ctx) => {this._debug(ctx,'#ff0000')})
  }

/**
   *
   * @param {object} options
   */
  _createClass(BarnesHutSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
      this.thetaInversed = 1 / this.options.theta;

// if 1 then min distance = 0.5, if 0.5 then min distance = 0.5 + 0.5*node.shape.radius
      this.overlapAvoidanceFactor = 1 - Math.max(0, Math.min(1, this.options.avoidOverlap));
    }

/**
     * This function calculates the forces the nodes apply on each other based on a gravitational model.
     * The Barnes Hut method is used to speed up this N-body simulation.
     *
     * @private
     */
  }, {
    key: "solve",
    value: function solve() {
      if (this.options.gravitationalConstant !== 0 && this.physicsBody.physicsNodeIndices.length > 0) {
        var node;
        var nodes = this.body.nodes;
        var nodeIndices = this.physicsBody.physicsNodeIndices;
        var nodeCount = nodeIndices.length;

// create the tree
        var barnesHutTree = this._formBarnesHutTree(nodes, nodeIndices);

// for debugging
        this.barnesHutTree = barnesHutTree;

// place the nodes one by one recursively
        for (var i = 0; i < nodeCount; i++) {
          node = nodes[nodeIndices[i]];
          if (node.options.mass > 0) {
            // starting with root is irrelevant, it never passes the BarnesHutSolver condition
            this._getForceContributions(barnesHutTree.root, node);
          }
        }
      }
    }

/**
     * @param {object} parentBranch
     * @param {Node} node
     * @private
     */
  }, {
    key: "_getForceContributions",
    value: function _getForceContributions(parentBranch, node) {
      this._getForceContribution(parentBranch.children.NW, node);
      this._getForceContribution(parentBranch.children.NE, node);
      this._getForceContribution(parentBranch.children.SW, node);
      this._getForceContribution(parentBranch.children.SE, node);
    }

/**
     * This function traverses the barnesHutTree. It checks when it can approximate distant nodes with their center of mass.
     * If a region contains a single node, we check if it is not itself, then we apply the force.
     *
     * @param {object} parentBranch
     * @param {Node} node
     * @private
     */
  }, {
    key: "_getForceContribution",
    value: function _getForceContribution(parentBranch, node) {
      // we get no force contribution from an empty region
      if (parentBranch.childrenCount > 0) {
        // get the distance from the center of mass to the node.
        var dx = parentBranch.centerOfMass.x - node.x;
        var dy = parentBranch.centerOfMass.y - node.y;
        var distance = Math.sqrt(dx * dx + dy * dy);

// BarnesHutSolver condition
        // original condition : s/d < theta = passed  ===  d/s > 1/theta = passed
        // calcSize = 1/s --> d * 1/s > 1/theta = passed
        if (distance * parentBranch.calcSize > this.thetaInversed) {
          this._calculateForces(distance, dx, dy, node, parentBranch);
        } else {
          // Did not pass the condition, go into children if available
          if (parentBranch.childrenCount === 4) {
            this._getForceContributions(parentBranch, node);
          } else {
            // parentBranch must have only one node, if it was empty we wouldnt be here
            if (parentBranch.children.data.id != node.id) {
              // if it is not self
              this._calculateForces(distance, dx, dy, node, parentBranch);
            }
          }
        }
      }
    }

/**
     * Calculate the forces based on the distance.
     *
     * @param {number} distance
     * @param {number} dx
     * @param {number} dy
     * @param {Node} node
     * @param {object} parentBranch
     * @private
     */
  }, {
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, node, parentBranch) {
      if (distance === 0) {
        distance = 0.1;
        dx = distance;
      }
      if (this.overlapAvoidanceFactor < 1 && node.shape.radius) {
        distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
      }

// the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
      // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
      var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass / Math.pow(distance, 3);
      var fx = dx * gravityForce;
      var fy = dy * gravityForce;
      this.physicsBody.forces[node.id].x += fx;
      this.physicsBody.forces[node.id].y += fy;
    }

/**
     * This function constructs the barnesHut tree recursively. It creates the root, splits it and starts placing the nodes.
     *
     * @param {Array.<Node>} nodes
     * @param {Array.<number>} nodeIndices
     * @returns {{root: {centerOfMass: {x: number, y: number}, mass: number, range: {minX: number, maxX: number, minY: number, maxY: number}, size: number, calcSize: number, children: {data: null}, maxWidth: number, level: number, childrenCount: number}}} BarnesHutTree
     * @private
     */
  }, {
    key: "_formBarnesHutTree",
    value: function _formBarnesHutTree(nodes, nodeIndices) {
      var node;
      var nodeCount = nodeIndices.length;
      var minX = nodes[nodeIndices[0]].x;
      var minY = nodes[nodeIndices[0]].y;
      var maxX = nodes[nodeIndices[0]].x;
      var maxY = nodes[nodeIndices[0]].y;

// get the range of the nodes
      for (var i = 1; i < nodeCount; i++) {
        var _node = nodes[nodeIndices[i]];
        var x = _node.x;
        var y = _node.y;
        if (_node.options.mass > 0) {
          if (x < minX) {
            minX = x;
          }
          if (x > maxX) {
            maxX = x;
          }
          if (y < minY) {
            minY = y;
          }
          if (y > maxY) {
            maxY = y;
          }
        }
      }
      // make the range a square
      var sizeDiff = Math.abs(maxX - minX) - Math.abs(maxY - minY); // difference between X and Y
      if (sizeDiff > 0) {
        minY -= 0.5 * sizeDiff;
        maxY += 0.5 * sizeDiff;
      } // xSize > ySize
      else {
        minX += 0.5 * sizeDiff;
        maxX -= 0.5 * sizeDiff;
      } // xSize < ySize

var minimumTreeSize = 1e-5;
      var rootSize = Math.max(minimumTreeSize, Math.abs(maxX - minX));
      var halfRootSize = 0.5 * rootSize;
      var centerX = 0.5 * (minX + maxX),
        centerY = 0.5 * (minY + maxY);

// construct the barnesHutTree
      var barnesHutTree = {
        root: {
          centerOfMass: {
            x: 0,
            y: 0
          },
          mass: 0,
          range: {
            minX: centerX - halfRootSize,
            maxX: centerX + halfRootSize,
            minY: centerY - halfRootSize,
            maxY: centerY + halfRootSize
          },
          size: rootSize,
          calcSize: 1 / rootSize,
          children: {
            data: null
          },
          maxWidth: 0,
          level: 0,
          childrenCount: 4
        }
      };
      this._splitBranch(barnesHutTree.root);

// place the nodes one by one recursively
      for (var _i = 0; _i < nodeCount; _i++) {
        node = nodes[nodeIndices[_i]];
        if (node.options.mass > 0) {
          this._placeInTree(barnesHutTree.root, node);
        }
      }

// make global
      return barnesHutTree;
    }

/**
     * this updates the mass of a branch. this is increased by adding a node.
     *
     * @param {object} parentBranch
     * @param {Node} node
     * @private
     */
  }, {
    key: "_updateBranchMass",
    value: function _updateBranchMass(parentBranch, node) {
      var centerOfMass = parentBranch.centerOfMass;
      var totalMass = parentBranch.mass + node.options.mass;
      var totalMassInv = 1 / totalMass;
      centerOfMass.x = centerOfMass.x * parentBranch.mass + node.x * node.options.mass;
      centerOfMass.x *= totalMassInv;
      centerOfMass.y = centerOfMass.y * parentBranch.mass + node.y * node.options.mass;
      centerOfMass.y *= totalMassInv;
      parentBranch.mass = totalMass;
      var biggestSize = Math.max(Math.max(node.height, node.radius), node.width);
      parentBranch.maxWidth = parentBranch.maxWidth < biggestSize ? biggestSize : parentBranch.maxWidth;
    }

/**
     * determine in which branch the node will be placed.
     *
     * @param {object} parentBranch
     * @param {Node} node
     * @param {boolean} skipMassUpdate
     * @private
     */
  }, {
    key: "_placeInTree",
    value: function _placeInTree(parentBranch, node, skipMassUpdate) {
      if (skipMassUpdate != true || skipMassUpdate === undefined) {
        // update the mass of the branch.
        this._updateBranchMass(parentBranch, node);
      }
      var range = parentBranch.children.NW.range;
      var region;
      if (range.maxX > node.x) {
        // in NW or SW
        if (range.maxY > node.y) {
          region = "NW";
        } else {
          region = "SW";
        }
      } else {
        // in NE or SE
        if (range.maxY > node.y) {
          region = "NE";
        } else {
          region = "SE";
        }
      }
      this._placeInRegion(parentBranch, node, region);
    }

/**
     * actually place the node in a region (or branch)
     *
     * @param {object} parentBranch
     * @param {Node} node
     * @param {'NW'| 'NE' | 'SW' | 'SE'} region
     * @private
     */
  }, {
    key: "_placeInRegion",
    value: function _placeInRegion(parentBranch, node, region) {
      var children = parentBranch.children[region];
      switch (children.childrenCount) {
        case 0:
          // place node here
          children.children.data = node;
          children.childrenCount = 1;
          this._updateBranchMass(children, node);
          break;
        case 1:
          // convert into children
          // if there are two nodes exactly overlapping (on init, on opening of cluster etc.)
          // we move one node a little bit and we do not put it in the tree.
          if (children.children.data.x === node.x && children.children.data.y === node.y) {
            node.x += this._rng();
            node.y += this._rng();
          } else {
            this._splitBranch(children);
            this._placeInTree(children, node);
          }
          break;
        case 4:
          // place in branch
          this._placeInTree(children, node);
          break;
      }
    }

/**
     * this function splits a branch into 4 sub branches. If the branch contained a node, we place it in the subbranch
     * after the split is complete.
     *
     * @param {object} parentBranch
     * @private
     */
  }, {
    key: "_splitBranch",
    value: function _splitBranch(parentBranch) {
      // if the branch is shaded with a node, replace the node in the new subset.
      var containedNode = null;
      if (parentBranch.childrenCount === 1) {
        containedNode = parentBranch.children.data;
        parentBranch.mass = 0;
        parentBranch.centerOfMass.x = 0;
        parentBranch.centerOfMass.y = 0;
      }
      parentBranch.childrenCount = 4;
      parentBranch.children.data = null;
      this._insertRegion(parentBranch, "NW");
      this._insertRegion(parentBranch, "NE");
      this._insertRegion(parentBranch, "SW");
      this._insertRegion(parentBranch, "SE");
      if (containedNode != null) {
        this._placeInTree(parentBranch, containedNode);
      }
    }

/**
     * This function subdivides the region into four new segments.
     * Specifically, this inserts a single new segment.
     * It fills the children section of the parentBranch
     *
     * @param {object} parentBranch
     * @param {'NW'| 'NE' | 'SW' | 'SE'} region
     * @private
     */
  }, {
    key: "_insertRegion",
    value: function _insertRegion(parentBranch, region) {
      var minX, maxX, minY, maxY;
      var childSize = 0.5 * parentBranch.size;
      switch (region) {
        case "NW":
          minX = parentBranch.range.minX;
          maxX = parentBranch.range.minX + childSize;
          minY = parentBranch.range.minY;
          maxY = parentBranch.range.minY + childSize;
          break;
        case "NE":
          minX = parentBranch.range.minX + childSize;
          maxX = parentBranch.range.maxX;
          minY = parentBranch.range.minY;
          maxY = parentBranch.range.minY + childSize;
          break;
        case "SW":
          minX = parentBranch.range.minX;
          maxX = parentBranch.range.minX + childSize;
          minY = parentBranch.range.minY + childSize;
          maxY = parentBranch.range.maxY;
          break;
        case "SE":
          minX = parentBranch.range.minX + childSize;
          maxX = parentBranch.range.maxX;
          minY = parentBranch.range.minY + childSize;
          maxY = parentBranch.range.maxY;
          break;
      }
      parentBranch.children[region] = {
        centerOfMass: {
          x: 0,
          y: 0
        },
        mass: 0,
        range: {
          minX: minX,
          maxX: maxX,
          minY: minY,
          maxY: maxY
        },
        size: 0.5 * parentBranch.size,
        calcSize: 2 * parentBranch.calcSize,
        children: {
          data: null
        },
        maxWidth: 0,
        level: parentBranch.level + 1,
        childrenCount: 0
      };
    }

//---------------------------  DEBUGGING BELOW  ---------------------------//

/**
     * This function is for debugging purposed, it draws the tree.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} color
     * @private
     */
  }, {
    key: "_debug",
    value: function _debug(ctx, color) {
      if (this.barnesHutTree !== undefined) {
        ctx.lineWidth = 1;
        this._drawBranch(this.barnesHutTree.root, ctx, color);
      }
    }

/**
     * This function is for debugging purposes. It draws the branches recursively.
     *
     * @param {object} branch
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} color
     * @private
     */
  }, {
    key: "_drawBranch",
    value: function _drawBranch(branch, ctx, color) {
      if (color === undefined) {
        color = "#FF0000";
      }
      if (branch.childrenCount === 4) {
        this._drawBranch(branch.children.NW, ctx);
        this._drawBranch(branch.children.NE, ctx);
        this._drawBranch(branch.children.SE, ctx);
        this._drawBranch(branch.children.SW, ctx);
      }
      ctx.strokeStyle = color;
      ctx.beginPath();
      ctx.moveTo(branch.range.minX, branch.range.minY);
      ctx.lineTo(branch.range.maxX, branch.range.minY);
      ctx.stroke();
      ctx.beginPath();
      ctx.moveTo(branch.range.maxX, branch.range.minY);
      ctx.lineTo(branch.range.maxX, branch.range.maxY);
      ctx.stroke();
      ctx.beginPath();
      ctx.moveTo(branch.range.maxX, branch.range.maxY);
      ctx.lineTo(branch.range.minX, branch.range.maxY);
      ctx.stroke();
      ctx.beginPath();
      ctx.moveTo(branch.range.minX, branch.range.maxY);
      ctx.lineTo(branch.range.minX, branch.range.minY);
      ctx.stroke();

/*
       if (branch.mass > 0) {
       ctx.circle(branch.centerOfMass.x, branch.centerOfMass.y, 3*branch.mass);
       ctx.stroke();
       }
       */
    }
  }]);
  return BarnesHutSolver;
}();

/**
 * Repulsion Solver
 */
var RepulsionSolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function RepulsionSolver(body, physicsBody, options) {
    _classCallCheck(this, RepulsionSolver);
    this._rng = Alea("REPULSION SOLVER");
    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

/**
   *
   * @param {object} options
   */
  _createClass(RepulsionSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

/**
     * Calculate the forces the nodes apply on each other based on a repulsion field.
     * This field is linearly approximated.
     *
     * @private
     */
  }, {
    key: "solve",
    value: function solve() {
      var dx, dy, distance, fx, fy, repulsingForce, node1, node2;
      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

// repulsing forces between nodes
      var nodeDistance = this.options.nodeDistance;

// approximation constants
      var a = -2 / 3 / nodeDistance;
      var b = 4 / 3;

// we loop from i over all but the last entree in the array
      // j loops from i+1 to the last. This way we do not double count any of the indices, nor i === j
      for (var i = 0; i < nodeIndices.length - 1; i++) {
        node1 = nodes[nodeIndices[i]];
        for (var j = i + 1; j < nodeIndices.length; j++) {
          node2 = nodes[nodeIndices[j]];
          dx = node2.x - node1.x;
          dy = node2.y - node1.y;
          distance = Math.sqrt(dx * dx + dy * dy);

// same condition as BarnesHutSolver, making sure nodes are never 100% overlapping.
          if (distance === 0) {
            distance = 0.1 * this._rng();
            dx = distance;
          }
          if (distance < 2 * nodeDistance) {
            if (distance < 0.5 * nodeDistance) {
              repulsingForce = 1.0;
            } else {
              repulsingForce = a * distance + b; // linear approx of  1 / (1 + Math.exp((distance / nodeDistance - 1) * steepness))
            }

repulsingForce = repulsingForce / distance;
            fx = dx * repulsingForce;
            fy = dy * repulsingForce;
            forces[node1.id].x -= fx;
            forces[node1.id].y -= fy;
            forces[node2.id].x += fx;
            forces[node2.id].y += fy;
          }
        }
      }
    }
  }]);
  return RepulsionSolver;
}();

/**
 * Hierarchical Repulsion Solver
 */
var HierarchicalRepulsionSolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function HierarchicalRepulsionSolver(body, physicsBody, options) {
    _classCallCheck(this, HierarchicalRepulsionSolver);
    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

/**
   *
   * @param {object} options
   */
  _createClass(HierarchicalRepulsionSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
      this.overlapAvoidanceFactor = Math.max(0, Math.min(1, this.options.avoidOverlap || 0));
    }

/**
     * Calculate the forces the nodes apply on each other based on a repulsion field.
     * This field is linearly approximated.
     *
     * @private
     */
  }, {
    key: "solve",
    value: function solve() {
      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

// repulsing forces between nodes
      var nodeDistance = this.options.nodeDistance;

// we loop from i over all but the last entree in the array
      // j loops from i+1 to the last. This way we do not double count any of the indices, nor i === j
      for (var i = 0; i < nodeIndices.length - 1; i++) {
        var node1 = nodes[nodeIndices[i]];
        for (var j = i + 1; j < nodeIndices.length; j++) {
          var node2 = nodes[nodeIndices[j]];

// nodes only affect nodes on their level
          if (node1.level === node2.level) {
            var theseNodesDistance = nodeDistance + this.overlapAvoidanceFactor * ((node1.shape.radius || 0) / 2 + (node2.shape.radius || 0) / 2);
            var dx = node2.x - node1.x;
            var dy = node2.y - node1.y;
            var distance = Math.sqrt(dx * dx + dy * dy);
            var steepness = 0.05;
            var repulsingForce = void 0;
            if (distance < theseNodesDistance) {
              repulsingForce = -Math.pow(steepness * distance, 2) + Math.pow(steepness * theseNodesDistance, 2);
            } else {
              repulsingForce = 0;
            }
            // normalize force with
            if (distance !== 0) {
              repulsingForce = repulsingForce / distance;
            }
            var fx = dx * repulsingForce;
            var fy = dy * repulsingForce;
            forces[node1.id].x -= fx;
            forces[node1.id].y -= fy;
            forces[node2.id].x += fx;
            forces[node2.id].y += fy;
          }
        }
      }
    }
  }]);
  return HierarchicalRepulsionSolver;
}();

/**
 * Spring Solver
 */
var SpringSolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function SpringSolver(body, physicsBody, options) {
    _classCallCheck(this, SpringSolver);
    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

/**
   *
   * @param {object} options
   */
  _createClass(SpringSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

// forces caused by the edges, modelled as springs
      for (var i = 0; i < edgeIndices.length; i++) {
        edge = edges[edgeIndices[i]];
        if (edge.connected === true && edge.toId !== edge.fromId) {
          // only calculate forces if nodes are in the same sector
          if (this.body.nodes[edge.toId] !== undefined && this.body.nodes[edge.fromId] !== undefined) {
            if (edge.edgeType.via !== undefined) {
              edgeLength = edge.options.length === undefined ? this.options.springLength : edge.options.length;
              node1 = edge.to;
              node2 = edge.edgeType.via;
              node3 = edge.from;
              this._calculateSpringForce(node1, node2, 0.5 * edgeLength);
              this._calculateSpringForce(node2, node3, 0.5 * edgeLength);
            } else {
              // the * 1.5 is here so the edge looks as large as a smooth edge. It does not initially because the smooth edges use
              // the support nodes which exert a repulsive force on the to and from nodes, making the edge appear larger.
              edgeLength = edge.options.length === undefined ? this.options.springLength * 1.5 : edge.options.length;
              this._calculateSpringForce(edge.from, edge.to, edgeLength);
            }
          }
        }
      }
    }

/**
     * This is the code actually performing the calculation for the function above.
     *
     * @param {Node} node1
     * @param {Node} node2
     * @param {number} edgeLength
     * @private
     */
  }, {
    key: "_calculateSpringForce",
    value: function _calculateSpringForce(node1, node2, edgeLength) {
      var dx = node1.x - node2.x;
      var dy = node1.y - node2.y;
      var distance = Math.max(Math.sqrt(dx * dx + dy * dy), 0.01);

// the 1/distance is so the fx and fy can be calculated without sine or cosine.
      var springForce = this.options.springConstant * (edgeLength - distance) / distance;
      var fx = dx * springForce;
      var fy = dy * springForce;

// handle the case where one node is not part of the physcis
      if (this.physicsBody.forces[node1.id] !== undefined) {
        this.physicsBody.forces[node1.id].x += fx;
        this.physicsBody.forces[node1.id].y += fy;
      }
      if (this.physicsBody.forces[node2.id] !== undefined) {
        this.physicsBody.forces[node2.id].x -= fx;
        this.physicsBody.forces[node2.id].y -= fy;
      }
    }
  }]);
  return SpringSolver;
}();

/**
 * Hierarchical Spring Solver
 */
var HierarchicalSpringSolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function HierarchicalSpringSolver(body, physicsBody, options) {
    _classCallCheck(this, HierarchicalSpringSolver);
    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

/**
   *
   * @param {object} options
   */
  _createClass(HierarchicalSpringSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

/**
     * This function calculates the springforces on the nodes, accounting for the support nodes.
     *
     * @private
     */
  }, {
    key: "solve",
    value: function solve() {
      var edgeLength, edge;
      var dx, dy, fx, fy, springForce, distance;
      var edges = this.body.edges;
      var factor = 0.5;
      var edgeIndices = this.physicsBody.physicsEdgeIndices;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

// initialize the spring force counters
      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        forces[nodeId].springFx = 0;
        forces[nodeId].springFy = 0;
      }

// forces caused by the edges, modelled as springs
      for (var _i = 0; _i < edgeIndices.length; _i++) {
        edge = edges[edgeIndices[_i]];
        if (edge.connected === true) {
          edgeLength = edge.options.length === undefined ? this.options.springLength : edge.options.length;
          dx = edge.from.x - edge.to.x;
          dy = edge.from.y - edge.to.y;
          distance = Math.sqrt(dx * dx + dy * dy);
          distance = distance === 0 ? 0.01 : distance;

// the 1/distance is so the fx and fy can be calculated without sine or cosine.
          springForce = this.options.springConstant * (edgeLength - distance) / distance;
          fx = dx * springForce;
          fy = dy * springForce;
          if (edge.to.level != edge.from.level) {
            if (forces[edge.toId] !== undefined) {
              forces[edge.toId].springFx -= fx;
              forces[edge.toId].springFy -= fy;
            }
            if (forces[edge.fromId] !== undefined) {
              forces[edge.fromId].springFx += fx;
              forces[edge.fromId].springFy += fy;
            }
          } else {
            if (forces[edge.toId] !== undefined) {
              forces[edge.toId].x -= factor * fx;
              forces[edge.toId].y -= factor * fy;
            }
            if (forces[edge.fromId] !== undefined) {
              forces[edge.fromId].x += factor * fx;
              forces[edge.fromId].y += factor * fy;
            }
          }
        }
      }

// normalize spring forces
      springForce = 1;
      var springFx, springFy;
      for (var _i2 = 0; _i2 < nodeIndices.length; _i2++) {
        var _nodeId = nodeIndices[_i2];
        springFx = Math.min(springForce, Math.max(-springForce, forces[_nodeId].springFx));
        springFy = Math.min(springForce, Math.max(-springForce, forces[_nodeId].springFy));
        forces[_nodeId].x += springFx;
        forces[_nodeId].y += springFy;
      }

// retain energy balance
      var totalFx = 0;
      var totalFy = 0;
      for (var _i3 = 0; _i3 < nodeIndices.length; _i3++) {
        var _nodeId2 = nodeIndices[_i3];
        totalFx += forces[_nodeId2].x;
        totalFy += forces[_nodeId2].y;
      }
      var correctionFx = totalFx / nodeIndices.length;
      var correctionFy = totalFy / nodeIndices.length;
      for (var _i4 = 0; _i4 < nodeIndices.length; _i4++) {
        var _nodeId3 = nodeIndices[_i4];
        forces[_nodeId3].x -= correctionFx;
        forces[_nodeId3].y -= correctionFy;
      }
    }
  }]);
  return HierarchicalSpringSolver;
}();

/**
 * Central Gravity Solver
 */
var CentralGravitySolver = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function CentralGravitySolver(body, physicsBody, options) {
    _classCallCheck(this, CentralGravitySolver);
    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

/**
   *
   * @param {object} options
   */
  _createClass(CentralGravitySolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

/**
     * Calculates forces for each node
     */
  }, {
    key: "solve",
    value: function solve() {
      var dx, dy, distance, node;
      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;
      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        node = nodes[nodeId];
        dx = -node.x;
        dy = -node.y;
        distance = Math.sqrt(dx * dx + dy * dy);
        this._calculateForces(distance, dx, dy, forces, node);
      }
    }

/**
     * Calculate the forces based on the distance.
     *
     * @param {number} distance
     * @param {number} dx
     * @param {number} dy
     * @param {Object<Node.id, vis.Node>} forces
     * @param {Node} node
     * @private
     */
  }, {
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, forces, node) {
      var gravityForce = distance === 0 ? 0 : this.options.centralGravity / distance;
      forces[node.id].x = dx * gravityForce;
      forces[node.id].y = dy * gravityForce;
    }
  }]);
  return CentralGravitySolver;
}();

/**
 * @augments BarnesHutSolver
 */
var ForceAtlas2BasedRepulsionSolver = /*#__PURE__*/function (_BarnesHutSolver) {
  _inherits(ForceAtlas2BasedRepulsionSolver, _BarnesHutSolver);
  var _super = _createSuper$3(ForceAtlas2BasedRepulsionSolver);
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function ForceAtlas2BasedRepulsionSolver(body, physicsBody, options) {
    var _this;
    _classCallCheck(this, ForceAtlas2BasedRepulsionSolver);
    _this = _super.call(this, body, physicsBody, options);
    _this._rng = Alea("FORCE ATLAS 2 BASED REPULSION SOLVER");
    return _this;
  }

/**
   * Calculate the forces based on the distance.
   *
   * @param {number} distance
   * @param {number} dx
   * @param {number} dy
   * @param {Node} node
   * @param {object} parentBranch
   * @private
   */
  _createClass(ForceAtlas2BasedRepulsionSolver, [{
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, node, parentBranch) {
      if (distance === 0) {
        distance = 0.1 * this._rng();
        dx = distance;
      }
      if (this.overlapAvoidanceFactor < 1 && node.shape.radius) {
        distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
      }
      var degree = node.edges.length + 1;
      // the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
      // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
      var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass * degree / Math.pow(distance, 2);
      var fx = dx * gravityForce;
      var fy = dy * gravityForce;
      this.physicsBody.forces[node.id].x += fx;
      this.physicsBody.forces[node.id].y += fy;
    }
  }]);
  return ForceAtlas2BasedRepulsionSolver;
}(BarnesHutSolver);

/**
 * @augments CentralGravitySolver
 */
var ForceAtlas2BasedCentralGravitySolver = /*#__PURE__*/function (_CentralGravitySolver) {
  _inherits(ForceAtlas2BasedCentralGravitySolver, _CentralGravitySolver);
  var _super = _createSuper$2(ForceAtlas2BasedCentralGravitySolver);
  /**
   * @param {object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {object} options
   */
  function ForceAtlas2BasedCentralGravitySolver(body, physicsBody, options) {
    _classCallCheck(this, ForceAtlas2BasedCentralGravitySolver);
    return _super.call(this, body, physicsBody, options);
  }

/**
   * Calculate the forces based on the distance.
   *
   * @param {number} distance
   * @param {number} dx
   * @param {number} dy
   * @param {Object<Node.id, Node>} forces
   * @param {Node} node
   * @private
   */
  _createClass(ForceAtlas2BasedCentralGravitySolver, [{
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, forces, node) {
      if (distance > 0) {
        var degree = node.edges.length + 1;
        var gravityForce = this.options.centralGravity * degree * node.options.mass;
        forces[node.id].x = dx * gravityForce;
        forces[node.id].y = dy * gravityForce;
      }
    }
  }]);
  return ForceAtlas2BasedCentralGravitySolver;
}(CentralGravitySolver);

/**
 * The physics engine
 */
var PhysicsEngine = /*#__PURE__*/function () {
  /**
   * @param {object} body
   */
  function PhysicsEngine(body) {
    _classCallCheck(this, PhysicsEngine);
    this.body = body;
    this.physicsBody = {
      physicsNodeIndices: [],
      physicsEdgeIndices: [],
      forces: {},
      velocities: {}
    };
    this.physicsEnabled = true;
    this.simulationInterval = 1000 / 60;
    this.requiresTimeout = true;
    this.previousStates = {};
    this.referenceState = {};
    this.freezeCache = {};
    this.renderTimer = undefined;

// parameters for the adaptive timestep
    this.adaptiveTimestep = false;
    this.adaptiveTimestepEnabled = false;
    this.adaptiveCounter = 0;
    this.adaptiveInterval = 3;
    this.stabilized = false;
    this.startedStabilization = false;
    this.stabilizationIterations = 0;
    this.ready = false; // will be set to true if the stabilize

// default options
    this.options = {};
    this.defaultOptions = {
      enabled: true,
      barnesHut: {
        theta: 0.5,
        gravitationalConstant: -2000,
        centralGravity: 0.3,
        springLength: 95,
        springConstant: 0.04,
        damping: 0.09,
        avoidOverlap: 0
      },
      forceAtlas2Based: {
        theta: 0.5,
        gravitationalConstant: -50,
        centralGravity: 0.01,
        springConstant: 0.08,
        springLength: 100,
        damping: 0.4,
        avoidOverlap: 0
      },
      repulsion: {
        centralGravity: 0.2,
        springLength: 200,
        springConstant: 0.05,
        nodeDistance: 100,
        damping: 0.09,
        avoidOverlap: 0
      },
      hierarchicalRepulsion: {
        centralGravity: 0.0,
        springLength: 100,
        springConstant: 0.01,
        nodeDistance: 120,
        damping: 0.09
      },
      maxVelocity: 50,
      minVelocity: 0.75,
      // px/s
      solver: "barnesHut",
      stabilization: {
        enabled: true,
        iterations: 1000,
        // maximum number of iteration to stabilize
        updateInterval: 50,
        onlyDynamicEdges: false,
        fit: true
      },
      timestep: 0.5,
      adaptiveTimestep: true,
      wind: {
        x: 0,
        y: 0
      }
    };
    _Object$assign(this.options, this.defaultOptions);
    this.timestep = 0.5;
    this.layoutFailed = false;
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(PhysicsEngine, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this = this;
      this.body.emitter.on("initPhysics", function () {
        _this.initPhysics();
      });
      this.body.emitter.on("_layoutFailed", function () {
        _this.layoutFailed = true;
      });
      this.body.emitter.on("resetPhysics", function () {
        _this.stopSimulation();
        _this.ready = false;
      });
      this.body.emitter.on("disablePhysics", function () {
        _this.physicsEnabled = false;
        _this.stopSimulation();
      });
      this.body.emitter.on("restorePhysics", function () {
        _this.setOptions(_this.options);
        if (_this.ready === true) {
          _this.startSimulation();
        }
      });
      this.body.emitter.on("startSimulation", function () {
        if (_this.ready === true) {
          _this.startSimulation();
        }
      });
      this.body.emitter.on("stopSimulation", function () {
        _this.stopSimulation();
      });
      this.body.emitter.on("destroy", function () {
        _this.stopSimulation(false);
        _this.body.emitter.off();
      });
      this.body.emitter.on("_dataChanged", function () {
        // Nodes and/or edges have been added or removed, update shortcut lists.
        _this.updatePhysicsData();
      });

// debug: show forces
      // this.body.emitter.on("afterDrawing", (ctx) => {this._drawForces(ctx);});
    }

/**
     * set the physics options
     *
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        if (options === false) {
          this.options.enabled = false;
          this.physicsEnabled = false;
          this.stopSimulation();
        } else if (options === true) {
          this.options.enabled = true;
          this.physicsEnabled = true;
          this.startSimulation();
        } else {
          this.physicsEnabled = true;
          selectiveNotDeepExtend(["stabilization"], this.options, options);
          mergeOptions(this.options, options, "stabilization");
          if (options.enabled === undefined) {
            this.options.enabled = true;
          }
          if (this.options.enabled === false) {
            this.physicsEnabled = false;
            this.stopSimulation();
          }
          var wind = this.options.wind;
          if (wind) {
            if (typeof wind.x !== "number" || _Number$isNaN(wind.x)) {
              wind.x = 0;
            }
            if (typeof wind.y !== "number" || _Number$isNaN(wind.y)) {
              wind.y = 0;
            }
          }

// set the timestep
          this.timestep = this.options.timestep;
        }
      }
      this.init();
    }

/**
     * configure the engine.
     */
  }, {
    key: "init",
    value: function init() {
      var options;
      if (this.options.solver === "forceAtlas2Based") {
        options = this.options.forceAtlas2Based;
        this.nodesSolver = new ForceAtlas2BasedRepulsionSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new ForceAtlas2BasedCentralGravitySolver(this.body, this.physicsBody, options);
      } else if (this.options.solver === "repulsion") {
        options = this.options.repulsion;
        this.nodesSolver = new RepulsionSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      } else if (this.options.solver === "hierarchicalRepulsion") {
        options = this.options.hierarchicalRepulsion;
        this.nodesSolver = new HierarchicalRepulsionSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new HierarchicalSpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      } else {
        // barnesHut
        options = this.options.barnesHut;
        this.nodesSolver = new BarnesHutSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      }
      this.modelOptions = options;
    }

/**
     * initialize the engine
     */
  }, {
    key: "initPhysics",
    value: function initPhysics() {
      if (this.physicsEnabled === true && this.options.enabled === true) {
        if (this.options.stabilization.enabled === true) {
          this.stabilize();
        } else {
          this.stabilized = false;
          this.ready = true;
          this.body.emitter.emit("fit", {}, this.layoutFailed); // if the layout failed, we use the approximation for the zoom
          this.startSimulation();
        }
      } else {
        this.ready = true;
        this.body.emitter.emit("fit");
      }
    }

/**
     * Start the simulation
     */
  }, {
    key: "startSimulation",
    value: function startSimulation() {
      if (this.physicsEnabled === true && this.options.enabled === true) {
        this.stabilized = false;

// when visible, adaptivity is disabled.
        this.adaptiveTimestep = false;

// this sets the width of all nodes initially which could be required for the avoidOverlap
        this.body.emitter.emit("_resizeNodes");
        if (this.viewFunction === undefined) {
          var _context;
          this.viewFunction = _bindInstanceProperty$1(_context = this.simulationStep).call(_context, this);
          this.body.emitter.on("initRedraw", this.viewFunction);
          this.body.emitter.emit("_startRendering");
        }
      } else {
        this.body.emitter.emit("_redraw");
      }
    }

/**
     * Stop the simulation, force stabilization.
     *
     * @param {boolean} [emit=true]
     */
  }, {
    key: "stopSimulation",
    value: function stopSimulation() {
      var emit = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
      this.stabilized = true;
      if (emit === true) {
        this._emitStabilized();
      }
      if (this.viewFunction !== undefined) {
        this.body.emitter.off("initRedraw", this.viewFunction);
        this.viewFunction = undefined;
        if (emit === true) {
          this.body.emitter.emit("_stopRendering");
        }
      }
    }

/**
     * The viewFunction inserts this step into each render loop. It calls the physics tick and handles the cleanup at stabilized.
     *
     */
  }, {
    key: "simulationStep",
    value: function simulationStep() {
      // check if the physics have settled
      var startTime = _Date$now();
      this.physicsTick();
      var physicsTime = _Date$now() - startTime;

// run double speed if it is a little graph
      if ((physicsTime < 0.4 * this.simulationInterval || this.runDoubleSpeed === true) && this.stabilized === false) {
        this.physicsTick();

// this makes sure there is no jitter. The decision is taken once to run it at double speed.
        this.runDoubleSpeed = true;
      }
      if (this.stabilized === true) {
        this.stopSimulation();
      }
    }

/**
     * trigger the stabilized event.
     *
     * @param {number} [amountOfIterations=this.stabilizationIterations]
     * @private
     */
  }, {
    key: "_emitStabilized",
    value: function _emitStabilized() {
      var _this2 = this;
      var amountOfIterations = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.stabilizationIterations;
      if (this.stabilizationIterations > 1 || this.startedStabilization === true) {
        _setTimeout(function () {
          _this2.body.emitter.emit("stabilized", {
            iterations: amountOfIterations
          });
          _this2.startedStabilization = false;
          _this2.stabilizationIterations = 0;
        }, 0);
      }
    }

/**
     * Calculate the forces for one physics iteration and move the nodes.
     *
     * @private
     */
  }, {
    key: "physicsStep",
    value: function physicsStep() {
      this.gravitySolver.solve();
      this.nodesSolver.solve();
      this.edgesSolver.solve();
      this.moveNodes();
    }

/**
     * Make dynamic adjustments to the timestep, based on current state.
     *
     * Helper function for physicsTick().
     *
     * @private
     */
  }, {
    key: "adjustTimeStep",
    value: function adjustTimeStep() {
      var factor = 1.2; // Factor for increasing the timestep on success.

// we compare the two steps. if it is acceptable we double the step.
      if (this._evaluateStepQuality() === true) {
        this.timestep = factor * this.timestep;
      } else {
        // if not, we decrease the step to a minimum of the options timestep.
        // if the decreased timestep is smaller than the options step, we do not reset the counter
        // we assume that the options timestep is stable enough.
        if (this.timestep / factor < this.options.timestep) {
          this.timestep = this.options.timestep;
        } else {
          // if the timestep was larger than 2 times the option one we check the adaptivity again to ensure
          // that large instabilities do not form.
          this.adaptiveCounter = -1; // check again next iteration
          this.timestep = Math.max(this.options.timestep, this.timestep / factor);
        }
      }
    }

/**
     * A single simulation step (or 'tick') in the physics simulation
     *
     * @private
     */
  }, {
    key: "physicsTick",
    value: function physicsTick() {
      this._startStabilizing(); // this ensures that there is no start event when the network is already stable.
      if (this.stabilized === true) return;

// adaptivity means the timestep adapts to the situation, only applicable for stabilization
      if (this.adaptiveTimestep === true && this.adaptiveTimestepEnabled === true) {
        // timestep remains stable for "interval" iterations.
        var doAdaptive = this.adaptiveCounter % this.adaptiveInterval === 0;
        if (doAdaptive) {
          // first the big step and revert.
          this.timestep = 2 * this.timestep;
          this.physicsStep();
          this.revert(); // saves the reference state

// now the normal step. Since this is the last step, it is the more stable one and we will take this.
          this.timestep = 0.5 * this.timestep;

// since it's half the step, we do it twice.
          this.physicsStep();
          this.physicsStep();
          this.adjustTimeStep();
        } else {
          this.physicsStep(); // normal step, keeping timestep constant
        }

this.adaptiveCounter += 1;
      } else {
        // case for the static timestep, we reset it to the one in options and take a normal step.
        this.timestep = this.options.timestep;
        this.physicsStep();
      }
      if (this.stabilized === true) this.revert();
      this.stabilizationIterations++;
    }

/**
     * Nodes and edges can have the physics toggles on or off. A collection of indices is created here so we can skip the check all the time.
     *
     * @private
     */
  }, {
    key: "updatePhysicsData",
    value: function updatePhysicsData() {
      this.physicsBody.forces = {};
      this.physicsBody.physicsNodeIndices = [];
      this.physicsBody.physicsEdgeIndices = [];
      var nodes = this.body.nodes;
      var edges = this.body.edges;

// get node indices for physics
      for (var nodeId in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, nodeId)) {
          if (nodes[nodeId].options.physics === true) {
            this.physicsBody.physicsNodeIndices.push(nodes[nodeId].id);
          }
        }
      }

// get edge indices for physics
      for (var edgeId in edges) {
        if (Object.prototype.hasOwnProperty.call(edges, edgeId)) {
          if (edges[edgeId].options.physics === true) {
            this.physicsBody.physicsEdgeIndices.push(edges[edgeId].id);
          }
        }
      }

// get the velocity and the forces vector
      for (var i = 0; i < this.physicsBody.physicsNodeIndices.length; i++) {
        var _nodeId = this.physicsBody.physicsNodeIndices[i];
        this.physicsBody.forces[_nodeId] = {
          x: 0,
          y: 0
        };

// forces can be reset because they are recalculated. Velocities have to persist.
        if (this.physicsBody.velocities[_nodeId] === undefined) {
          this.physicsBody.velocities[_nodeId] = {
            x: 0,
            y: 0
          };
        }
      }

// clean deleted nodes from the velocity vector
      for (var _nodeId2 in this.physicsBody.velocities) {
        if (nodes[_nodeId2] === undefined) {
          delete this.physicsBody.velocities[_nodeId2];
        }
      }
    }

/**
     * Revert the simulation one step. This is done so after stabilization, every new start of the simulation will also say stabilized.
     */
  }, {
    key: "revert",
    value: function revert() {
      var nodeIds = _Object$keys(this.previousStates);
      var nodes = this.body.nodes;
      var velocities = this.physicsBody.velocities;
      this.referenceState = {};
      for (var i = 0; i < nodeIds.length; i++) {
        var nodeId = nodeIds[i];
        if (nodes[nodeId] !== undefined) {
          if (nodes[nodeId].options.physics === true) {
            this.referenceState[nodeId] = {
              positions: {
                x: nodes[nodeId].x,
                y: nodes[nodeId].y
              }
            };
            velocities[nodeId].x = this.previousStates[nodeId].vx;
            velocities[nodeId].y = this.previousStates[nodeId].vy;
            nodes[nodeId].x = this.previousStates[nodeId].x;
            nodes[nodeId].y = this.previousStates[nodeId].y;
          }
        } else {
          delete this.previousStates[nodeId];
        }
      }
    }

/**
     * This compares the reference state to the current state
     *
     * @returns {boolean}
     * @private
     */
  }, {
    key: "_evaluateStepQuality",
    value: function _evaluateStepQuality() {
      var dx, dy, dpos;
      var nodes = this.body.nodes;
      var reference = this.referenceState;
      var posThreshold = 0.3;
      for (var nodeId in this.referenceState) {
        if (Object.prototype.hasOwnProperty.call(this.referenceState, nodeId) && nodes[nodeId] !== undefined) {
          dx = nodes[nodeId].x - reference[nodeId].positions.x;
          dy = nodes[nodeId].y - reference[nodeId].positions.y;
          dpos = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));
          if (dpos > posThreshold) {
            return false;
          }
        }
      }
      return true;
    }

/**
     * move the nodes one timestep and check if they are stabilized
     */
  }, {
    key: "moveNodes",
    value: function moveNodes() {
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var maxNodeVelocity = 0;
      var averageNodeVelocity = 0;

// the velocity threshold (energy in the system) for the adaptivity toggle
      var velocityAdaptiveThreshold = 5;
      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        var nodeVelocity = this._performStep(nodeId);
        // stabilized is true if stabilized is true and velocity is smaller than vmin --> all nodes must be stabilized
        maxNodeVelocity = Math.max(maxNodeVelocity, nodeVelocity);
        averageNodeVelocity += nodeVelocity;
      }

// evaluating the stabilized and adaptiveTimestepEnabled conditions
      this.adaptiveTimestepEnabled = averageNodeVelocity / nodeIndices.length < velocityAdaptiveThreshold;
      this.stabilized = maxNodeVelocity < this.options.minVelocity;
    }

/**
     * Calculate new velocity for a coordinate direction
     *
     * @param {number} v  velocity for current coordinate
     * @param {number} f  regular force for current coordinate
     * @param {number} m  mass of current node
     * @returns {number} new velocity for current coordinate
     * @private
     */
  }, {
    key: "calculateComponentVelocity",
    value: function calculateComponentVelocity(v, f, m) {
      var df = this.modelOptions.damping * v; // damping force
      var a = (f - df) / m; // acceleration

v += a * this.timestep;

// Put a limit on the velocities if it is really high
      var maxV = this.options.maxVelocity || 1e9;
      if (Math.abs(v) > maxV) {
        v = v > 0 ? maxV : -maxV;
      }
      return v;
    }

/**
     * Perform the actual step
     *
     * @param {Node.id} nodeId
     * @returns {number} the new velocity of given node
     * @private
     */
  }, {
    key: "_performStep",
    value: function _performStep(nodeId) {
      var node = this.body.nodes[nodeId];
      var force = this.physicsBody.forces[nodeId];
      if (this.options.wind) {
        force.x += this.options.wind.x;
        force.y += this.options.wind.y;
      }
      var velocity = this.physicsBody.velocities[nodeId];

// store the state so we can revert
      this.previousStates[nodeId] = {
        x: node.x,
        y: node.y,
        vx: velocity.x,
        vy: velocity.y
      };
      if (node.options.fixed.x === false) {
        velocity.x = this.calculateComponentVelocity(velocity.x, force.x, node.options.mass);
        node.x += velocity.x * this.timestep;
      } else {
        force.x = 0;
        velocity.x = 0;
      }
      if (node.options.fixed.y === false) {
        velocity.y = this.calculateComponentVelocity(velocity.y, force.y, node.options.mass);
        node.y += velocity.y * this.timestep;
      } else {
        force.y = 0;
        velocity.y = 0;
      }
      var totalVelocity = Math.sqrt(Math.pow(velocity.x, 2) + Math.pow(velocity.y, 2));
      return totalVelocity;
    }

/**
     * When initializing and stabilizing, we can freeze nodes with a predefined position.
     * This greatly speeds up stabilization because only the supportnodes for the smoothCurves have to settle.
     *
     * @private
     */
  }, {
    key: "_freezeNodes",
    value: function _freezeNodes() {
      var nodes = this.body.nodes;
      for (var id in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, id)) {
          if (nodes[id].x && nodes[id].y) {
            var fixed = nodes[id].options.fixed;
            this.freezeCache[id] = {
              x: fixed.x,
              y: fixed.y
            };
            fixed.x = true;
            fixed.y = true;
          }
        }
      }
    }

/**
     * Unfreezes the nodes that have been frozen by _freezeDefinedNodes.
     *
     * @private
     */
  }, {
    key: "_restoreFrozenNodes",
    value: function _restoreFrozenNodes() {
      var nodes = this.body.nodes;
      for (var id in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, id)) {
          if (this.freezeCache[id] !== undefined) {
            nodes[id].options.fixed.x = this.freezeCache[id].x;
            nodes[id].options.fixed.y = this.freezeCache[id].y;
          }
        }
      }
      this.freezeCache = {};
    }

/**
     * Find a stable position for all nodes
     *
     * @param {number} [iterations=this.options.stabilization.iterations]
     */
  }, {
    key: "stabilize",
    value: function stabilize() {
      var _this3 = this;
      var iterations = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.stabilization.iterations;
      if (typeof iterations !== "number") {
        iterations = this.options.stabilization.iterations;
        console.error("The stabilize method needs a numeric amount of iterations. Switching to default: ", iterations);
      }
      if (this.physicsBody.physicsNodeIndices.length === 0) {
        this.ready = true;
        return;
      }

// enable adaptive timesteps
      this.adaptiveTimestep = this.options.adaptiveTimestep;

// this sets the width of all nodes initially which could be required for the avoidOverlap
      this.body.emitter.emit("_resizeNodes");
      this.stopSimulation(); // stop the render loop
      this.stabilized = false;

// block redraw requests
      this.body.emitter.emit("_blockRedraw");
      this.targetIterations = iterations;

// start the stabilization
      if (this.options.stabilization.onlyDynamicEdges === true) {
        this._freezeNodes();
      }
      this.stabilizationIterations = 0;
      _setTimeout(function () {
        return _this3._stabilizationBatch();
      }, 0);
    }

/**
     * If not already stabilizing, start it and emit a start event.
     *
     * @returns {boolean} true if stabilization started with this call
     * @private
     */
  }, {
    key: "_startStabilizing",
    value: function _startStabilizing() {
      if (this.startedStabilization === true) return false;
      this.body.emitter.emit("startStabilizing");
      this.startedStabilization = true;
      return true;
    }

/**
     * One batch of stabilization
     *
     * @private
     */
  }, {
    key: "_stabilizationBatch",
    value: function _stabilizationBatch() {
      var _this4 = this;
      var running = function running() {
        return _this4.stabilized === false && _this4.stabilizationIterations < _this4.targetIterations;
      };
      var sendProgress = function sendProgress() {
        _this4.body.emitter.emit("stabilizationProgress", {
          iterations: _this4.stabilizationIterations,
          total: _this4.targetIterations
        });
      };
      if (this._startStabilizing()) {
        sendProgress(); // Ensure that there is at least one start event.
      }

/**
     * Wrap up the stabilization, fit and emit the events.
     *
     * @private
     */
  }, {
    key: "_finalizeStabilization",
    value: function _finalizeStabilization() {
      this.body.emitter.emit("_allowRedraw");
      if (this.options.stabilization.fit === true) {
        this.body.emitter.emit("fit");
      }
      if (this.options.stabilization.onlyDynamicEdges === true) {
        this._restoreFrozenNodes();
      }
      this.body.emitter.emit("stabilizationIterationsDone");
      this.body.emitter.emit("_requestRedraw");
      if (this.stabilized === true) {
        this._emitStabilized();
      } else {
        this.startSimulation();
      }
      this.ready = true;
    }

//---------------------------  DEBUGGING BELOW  ---------------------------//

/**
     * Debug function that display arrows for the forces currently active in the network.
     *
     * Use this when debugging only.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @private
     */
  }, {
    key: "_drawForces",
    value: function _drawForces(ctx) {
      for (var i = 0; i < this.physicsBody.physicsNodeIndices.length; i++) {
        var index = this.physicsBody.physicsNodeIndices[i];
        var node = this.body.nodes[index];
        var force = this.physicsBody.forces[index];
        var factor = 20;
        var colorFactor = 0.03;
        var forceSize = Math.sqrt(Math.pow(force.x, 2) + Math.pow(force.x, 2));
        var size = Math.min(Math.max(5, forceSize), 15);
        var arrowSize = 3 * size;
        var color = HSVToHex((180 - Math.min(1, Math.max(0, colorFactor * forceSize)) * 180) / 360, 1, 1);
        var point = {
          x: node.x + factor * force.x,
          y: node.y + factor * force.y
        };
        ctx.lineWidth = size;
        ctx.strokeStyle = color;
        ctx.beginPath();
        ctx.moveTo(node.x, node.y);
        ctx.lineTo(point.x, point.y);
        ctx.stroke();
        var angle = Math.atan2(force.y, force.x);
        ctx.fillStyle = color;
        EndPoints.draw(ctx, {
          type: "arrow",
          point: point,
          angle: angle,
          length: arrowSize
        });
        _fillInstanceProperty(ctx).call(ctx);
      }
    }
  }]);
  return PhysicsEngine;
}();

// Unique ID creation requires a high quality random # generator. In the browser we therefore
// require the crypto API and do not support built-in fallback to lower quality random number
// generators (like Math.random()).
let getRandomValues;
const rnds8 = new Uint8Array(16);
function rng() {
  // lazy load so that environments that need to polyfill have a chance to do so
  if (!getRandomValues) {
    // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation.
    getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto);

if (!getRandomValues) {
      throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
    }
  }

return getRandomValues(rnds8);
}

/**
 * Convert array of 16 byte values to UUID string format of the form:
 * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
 */

const byteToHex = [];

for (let i = 0; i < 256; ++i) {
  byteToHex.push((i + 0x100).toString(16).slice(1));
}

function unsafeStringify(arr, offset = 0) {
  // Note: Be careful editing this code!  It's been tuned for performance
  // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
  return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase();
}

const randomUUID = typeof crypto !== 'undefined' && crypto.randomUUID && crypto.randomUUID.bind(crypto);
var native = {
  randomUUID
};

function v4(options, buf, offset) {
  if (native.randomUUID && !buf && !options) {
    return native.randomUUID();
  }

options = options || {};
  const rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`

rnds[6] = rnds[6] & 0x0f | 0x40;
  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided

return unsafeStringify(rnds);
}

/**
 * Utility Class
 */
var NetworkUtil = /*#__PURE__*/function () {
  /**
   * @ignore
   */
  function NetworkUtil() {
    _classCallCheck(this, NetworkUtil);
  }

/**
   * Find the center position of the network considering the bounding boxes
   *
   * @param {Array.<Node>} allNodes
   * @param {Array.<Node>} [specificNodes=[]]
   * @returns {{minX: number, maxX: number, minY: number, maxY: number}}
   * @static
   */
  _createClass(NetworkUtil, null, [{
    key: "getRange",
    value: function getRange(allNodes) {
      var specificNodes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
      var minY = 1e9,
        maxY = -1e9,
        minX = 1e9,
        maxX = -1e9,
        node;
      if (specificNodes.length > 0) {
        for (var i = 0; i < specificNodes.length; i++) {
          node = allNodes[specificNodes[i]];
          if (minX > node.shape.boundingBox.left) {
            minX = node.shape.boundingBox.left;
          }
          if (maxX < node.shape.boundingBox.right) {
            maxX = node.shape.boundingBox.right;
          }
          if (minY > node.shape.boundingBox.top) {
            minY = node.shape.boundingBox.top;
          } // top is negative, bottom is positive
          if (maxY < node.shape.boundingBox.bottom) {
            maxY = node.shape.boundingBox.bottom;
          } // top is negative, bottom is positive
        }
      }

if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
        minY = 0, maxY = 0, minX = 0, maxX = 0;
      }
      return {
        minX: minX,
        maxX: maxX,
        minY: minY,
        maxY: maxY
      };
    }

/**
     * Find the center position of the network
     *
     * @param {Array.<Node>} allNodes
     * @param {Array.<Node>} [specificNodes=[]]
     * @returns {{minX: number, maxX: number, minY: number, maxY: number}}
     * @static
     */
  }, {
    key: "getRangeCore",
    value: function getRangeCore(allNodes) {
      var specificNodes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
      var minY = 1e9,
        maxY = -1e9,
        minX = 1e9,
        maxX = -1e9,
        node;
      if (specificNodes.length > 0) {
        for (var i = 0; i < specificNodes.length; i++) {
          node = allNodes[specificNodes[i]];
          if (minX > node.x) {
            minX = node.x;
          }
          if (maxX < node.x) {
            maxX = node.x;
          }
          if (minY > node.y) {
            minY = node.y;
          } // top is negative, bottom is positive
          if (maxY < node.y) {
            maxY = node.y;
          } // top is negative, bottom is positive
        }
      }

/**
     * @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
     * @returns {{x: number, y: number}}
     * @static
     */
  }, {
    key: "findCenter",
    value: function findCenter(range) {
      return {
        x: 0.5 * (range.maxX + range.minX),
        y: 0.5 * (range.maxY + range.minY)
      };
    }

/**
     * This returns a clone of the options or options of the edge or node to be used for construction of new edges or check functions for new nodes.
     *
     * @param {vis.Item} item
     * @param {'node'|undefined} type
     * @returns {{}}
     * @static
     */
  }, {
    key: "cloneOptions",
    value: function cloneOptions(item, type) {
      var clonedOptions = {};
      if (type === undefined || type === "node") {
        deepExtend(clonedOptions, item.options, true);
        clonedOptions.x = item.x;
        clonedOptions.y = item.y;
        clonedOptions.amountOfConnections = item.edges.length;
      } else {
        deepExtend(clonedOptions, item.options, true);
      }
      return clonedOptions;
    }
  }]);
  return NetworkUtil;
}();

/**
 * A Cluster is a special Node that allows a group of Nodes positioned closely together
 * to be represented by a single Cluster Node.
 *
 * @augments Node
 */
var Cluster = /*#__PURE__*/function (_Node) {
  _inherits(Cluster, _Node);
  var _super = _createSuper$1(Cluster);
  /**
   * @param {object} options
   * @param {object} body
   * @param {Array.<HTMLImageElement>}imagelist
   * @param {Array} grouplist
   * @param {object} globalOptions
   * @param {object} defaultOptions     Global default options for nodes
   */
  function Cluster(options, body, imagelist, grouplist, globalOptions, defaultOptions) {
    var _this;
    _classCallCheck(this, Cluster);
    _this = _super.call(this, options, body, imagelist, grouplist, globalOptions, defaultOptions);
    _this.isCluster = true;
    _this.containedNodes = {};
    _this.containedEdges = {};
    return _this;
  }

/**
   * Transfer child cluster data to current and disconnect the child cluster.
   *
   * Please consult the header comment in 'Clustering.js' for the fields set here.
   *
   * @param {string|number} childClusterId  id of child cluster to open
   */
  _createClass(Cluster, [{
    key: "_openChildCluster",
    value: function _openChildCluster(childClusterId) {
      var _this2 = this;
      var childCluster = this.body.nodes[childClusterId];
      if (this.containedNodes[childClusterId] === undefined) {
        throw new Error("node with id: " + childClusterId + " not in current cluster");
      }
      if (!childCluster.isCluster) {
        throw new Error("node with id: " + childClusterId + " is not a cluster");
      }

// Disconnect child cluster from current cluster
      delete this.containedNodes[childClusterId];
      forEach$1(childCluster.edges, function (edge) {
        delete _this2.containedEdges[edge.id];
      });

// Transfer nodes and edges
      forEach$1(childCluster.containedNodes, function (node, nodeId) {
        _this2.containedNodes[nodeId] = node;
      });
      childCluster.containedNodes = {};
      forEach$1(childCluster.containedEdges, function (edge, edgeId) {
        _this2.containedEdges[edgeId] = edge;
      });
      childCluster.containedEdges = {};

// Transfer edges within cluster edges which are clustered
      forEach$1(childCluster.edges, function (clusterEdge) {
        forEach$1(_this2.edges, function (parentClusterEdge) {
          var _context, _context2;
          // Assumption: a clustered edge can only be present in a single clustering edge
          // Not tested here
          var index = _indexOfInstanceProperty(_context = parentClusterEdge.clusteringEdgeReplacingIds).call(_context, clusterEdge.id);
          if (index === -1) return;
          forEach$1(clusterEdge.clusteringEdgeReplacingIds, function (srcId) {
            parentClusterEdge.clusteringEdgeReplacingIds.push(srcId);

// Maintain correct bookkeeping for transferred edge
            _this2.body.edges[srcId].edgeReplacedById = parentClusterEdge.id;
          });

// Remove cluster edge from parent cluster edge
          _spliceInstanceProperty(_context2 = parentClusterEdge.clusteringEdgeReplacingIds).call(_context2, index, 1);
        });
      });
      childCluster.edges = [];
    }
  }]);
  return Cluster;
}(Node);

/**
 * The clustering engine
 */
var ClusterEngine = /*#__PURE__*/function () {
  /**
   * @param {object} body
   */
  function ClusterEngine(body) {
    var _this = this;
    _classCallCheck(this, ClusterEngine);
    this.body = body;
    this.clusteredNodes = {}; // key: node id, value: { clusterId: <id of cluster>, node: <node instance>}
    this.clusteredEdges = {}; // key: edge id, value: restore information for given edge

this.options = {};
    this.defaultOptions = {};
    _Object$assign(this.options, this.defaultOptions);
    this.body.emitter.on("_resetData", function () {
      _this.clusteredNodes = {};
      _this.clusteredEdges = {};
    });
  }

/**
   *
   * @param {number} hubsize
   * @param {object} options
   */
  _createClass(ClusterEngine, [{
    key: "clusterByHubsize",
    value: function clusterByHubsize(hubsize, options) {
      if (hubsize === undefined) {
        hubsize = this._getHubSize();
      } else if (_typeof(hubsize) === "object") {
        options = this._checkOptions(hubsize);
        hubsize = this._getHubSize();
      }
      var nodesToCluster = [];
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var node = this.body.nodes[this.body.nodeIndices[i]];
        if (node.edges.length >= hubsize) {
          nodesToCluster.push(node.id);
        }
      }
      for (var _i = 0; _i < nodesToCluster.length; _i++) {
        this.clusterByConnection(nodesToCluster[_i], options, true);
      }
      this.body.emitter.emit("_dataChanged");
    }

/**
     * loop over all nodes, check if they adhere to the condition and cluster if needed.
     *
     * @param {object} options
     * @param {boolean} [refreshData=true]
     */
  }, {
    key: "cluster",
    value: function cluster() {
      var _this2 = this;
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      if (options.joinCondition === undefined) {
        throw new Error("Cannot call clusterByNodeData without a joinCondition function in the options.");
      }

// check if the options object is fine, append if needed
      options = this._checkOptions(options);
      var childNodesObj = {};
      var childEdgesObj = {};

// collect the nodes that will be in the cluster
      forEach$1(this.body.nodes, function (node, nodeId) {
        if (node.options && options.joinCondition(node.options) === true) {
          childNodesObj[nodeId] = node;

// collect the edges that will be in the cluster
          forEach$1(node.edges, function (edge) {
            if (_this2.clusteredEdges[edge.id] === undefined) {
              childEdgesObj[edge.id] = edge;
            }
          });
        }
      });
      this._cluster(childNodesObj, childEdgesObj, options, refreshData);
    }

/**
     * Cluster all nodes in the network that have only X edges
     *
     * @param {number} edgeCount
     * @param {object} options
     * @param {boolean} [refreshData=true]
     */
  }, {
    key: "clusterByEdgeCount",
    value: function clusterByEdgeCount(edgeCount, options) {
      var _this3 = this;
      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
      options = this._checkOptions(options);
      var clusters = [];
      var usedNodes = {};
      var edge, edges, relevantEdgeCount;
      // collect the nodes that will be in the cluster
      var _loop = function _loop() {
        var childNodesObj = {};
        var childEdgesObj = {};
        var nodeId = _this3.body.nodeIndices[i];
        var node = _this3.body.nodes[nodeId];

// if this node is already used in another cluster this session, we do not have to re-evaluate it.
        if (usedNodes[nodeId] === undefined) {
          relevantEdgeCount = 0;
          edges = [];
          for (var j = 0; j < node.edges.length; j++) {
            edge = node.edges[j];
            if (_this3.clusteredEdges[edge.id] === undefined) {
              if (edge.toId !== edge.fromId) {
                relevantEdgeCount++;
              }
              edges.push(edge);
            }
          }

// this node qualifies, we collect its neighbours to start the clustering process.
          if (relevantEdgeCount === edgeCount) {
            var checkJoinCondition = function checkJoinCondition(node) {
              if (options.joinCondition === undefined || options.joinCondition === null) {
                return true;
              }
              var clonedOptions = NetworkUtil.cloneOptions(node);
              return options.joinCondition(clonedOptions);
            };
            var gatheringSuccessful = true;
            for (var _j = 0; _j < edges.length; _j++) {
              edge = edges[_j];
              var childNodeId = _this3._getConnectedId(edge, nodeId);
              // add the nodes to the list by the join condition.
              if (checkJoinCondition(node)) {
                childEdgesObj[edge.id] = edge;
                childNodesObj[nodeId] = node;
                childNodesObj[childNodeId] = _this3.body.nodes[childNodeId];
                usedNodes[nodeId] = true;
              } else {
                // this node does not qualify after all.
                gatheringSuccessful = false;
                break;
              }
            }

// add to the cluster queue
            if (_Object$keys(childNodesObj).length > 0 && _Object$keys(childEdgesObj).length > 0 && gatheringSuccessful === true) {
              /**
               * Search for cluster data that contains any of the node id's
               *
               * @returns {boolean} true if no joinCondition, otherwise return value of joinCondition
               */
              var findClusterData = function findClusterData() {
                for (var n = 0; n < clusters.length; ++n) {
                  // Search for a cluster containing any of the node id's
                  for (var m in childNodesObj) {
                    if (clusters[n].nodes[m] !== undefined) {
                      return clusters[n];
                    }
                  }
                }
                return undefined;
              };

// If any of the found nodes is part of a cluster found in this method,
              // add the current values to that cluster
              var foundCluster = findClusterData();
              if (foundCluster !== undefined) {
                // Add nodes to found cluster if not present
                for (var m in childNodesObj) {
                  if (foundCluster.nodes[m] === undefined) {
                    foundCluster.nodes[m] = childNodesObj[m];
                  }
                }

// Add edges to found cluster, if not present
                for (var _m in childEdgesObj) {
                  if (foundCluster.edges[_m] === undefined) {
                    foundCluster.edges[_m] = childEdgesObj[_m];
                  }
                }
              } else {
                // Create a new cluster group
                clusters.push({
                  nodes: childNodesObj,
                  edges: childEdgesObj
                });
              }
            }
          }
        }
      };
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        _loop();
      }
      for (var _i2 = 0; _i2 < clusters.length; _i2++) {
        this._cluster(clusters[_i2].nodes, clusters[_i2].edges, options, false);
      }
      if (refreshData === true) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     * Cluster all nodes in the network that have only 1 edge
     *
     * @param {object} options
     * @param {boolean} [refreshData=true]
     */
  }, {
    key: "clusterOutliers",
    value: function clusterOutliers(options) {
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      this.clusterByEdgeCount(1, options, refreshData);
    }

/**
     * Cluster all nodes in the network that have only 2 edge
     *
     * @param {object} options
     * @param {boolean} [refreshData=true]
     */
  }, {
    key: "clusterBridges",
    value: function clusterBridges(options) {
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      this.clusterByEdgeCount(2, options, refreshData);
    }

/**
     * suck all connected nodes of a node into the node.
     *
     * @param {Node.id} nodeId
     * @param {object} options
     * @param {boolean} [refreshData=true]
     */
  }, {
    key: "clusterByConnection",
    value: function clusterByConnection(nodeId, options) {
      var _context;
      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
      // kill conditions
      if (nodeId === undefined) {
        throw new Error("No nodeId supplied to clusterByConnection!");
      }
      if (this.body.nodes[nodeId] === undefined) {
        throw new Error("The nodeId given to clusterByConnection does not exist!");
      }
      var node = this.body.nodes[nodeId];
      options = this._checkOptions(options, node);
      if (options.clusterNodeProperties.x === undefined) {
        options.clusterNodeProperties.x = node.x;
      }
      if (options.clusterNodeProperties.y === undefined) {
        options.clusterNodeProperties.y = node.y;
      }
      if (options.clusterNodeProperties.fixed === undefined) {
        options.clusterNodeProperties.fixed = {};
        options.clusterNodeProperties.fixed.x = node.options.fixed.x;
        options.clusterNodeProperties.fixed.y = node.options.fixed.y;
      }
      var childNodesObj = {};
      var childEdgesObj = {};
      var parentNodeId = node.id;
      var parentClonedOptions = NetworkUtil.cloneOptions(node);
      childNodesObj[parentNodeId] = node;

// collect the nodes that will be in the cluster
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        if (this.clusteredEdges[edge.id] === undefined) {
          var childNodeId = this._getConnectedId(edge, parentNodeId);

// if the child node is not in a cluster
          if (this.clusteredNodes[childNodeId] === undefined) {
            if (childNodeId !== parentNodeId) {
              if (options.joinCondition === undefined) {
                childEdgesObj[edge.id] = edge;
                childNodesObj[childNodeId] = this.body.nodes[childNodeId];
              } else {
                // clone the options and insert some additional parameters that could be interesting.
                var childClonedOptions = NetworkUtil.cloneOptions(this.body.nodes[childNodeId]);
                if (options.joinCondition(parentClonedOptions, childClonedOptions) === true) {
                  childEdgesObj[edge.id] = edge;
                  childNodesObj[childNodeId] = this.body.nodes[childNodeId];
                }
              }
            } else {
              // swallow the edge if it is self-referencing.
              childEdgesObj[edge.id] = edge;
            }
          }
        }
      }
      var childNodeIDs = _mapInstanceProperty(_context = _Object$keys(childNodesObj)).call(_context, function (childNode) {
        return childNodesObj[childNode].id;
      });
      for (var childNodeKey in childNodesObj) {
        if (!Object.prototype.hasOwnProperty.call(childNodesObj, childNodeKey)) continue;
        var childNode = childNodesObj[childNodeKey];
        for (var y = 0; y < childNode.edges.length; y++) {
          var childEdge = childNode.edges[y];
          if (_indexOfInstanceProperty(childNodeIDs).call(childNodeIDs, this._getConnectedId(childEdge, childNode.id)) > -1) {
            childEdgesObj[childEdge.id] = childEdge;
          }
        }
      }
      this._cluster(childNodesObj, childEdgesObj, options, refreshData);
    }

/**
     * This function creates the edges that will be attached to the cluster
     * It looks for edges that are connected to the nodes from the "outside' of the cluster.
     *
     * @param {{Node.id: vis.Node}} childNodesObj
     * @param {{vis.Edge.id: vis.Edge}} childEdgesObj
     * @param {object} clusterNodeProperties
     * @param {object} clusterEdgeProperties
     * @private
     */
  }, {
    key: "_createClusterEdges",
    value: function _createClusterEdges(childNodesObj, childEdgesObj, clusterNodeProperties, clusterEdgeProperties) {
      var edge, childNodeId, childNode, toId, fromId, otherNodeId;

// loop over all child nodes and their edges to find edges going out of the cluster
      // these edges will be replaced by clusterEdges.
      var childKeys = _Object$keys(childNodesObj);
      var createEdges = [];
      for (var i = 0; i < childKeys.length; i++) {
        childNodeId = childKeys[i];
        childNode = childNodesObj[childNodeId];

// construct new edges from the cluster to others
        for (var j = 0; j < childNode.edges.length; j++) {
          edge = childNode.edges[j];
          // we only handle edges that are visible to the system, not the disabled ones from the clustering process.
          if (this.clusteredEdges[edge.id] === undefined) {
            // self-referencing edges will be added to the "hidden" list
            if (edge.toId == edge.fromId) {
              childEdgesObj[edge.id] = edge;
            } else {
              // set up the from and to.
              if (edge.toId == childNodeId) {
                // this is a double equals because ints and strings can be interchanged here.
                toId = clusterNodeProperties.id;
                fromId = edge.fromId;
                otherNodeId = fromId;
              } else {
                toId = edge.toId;
                fromId = clusterNodeProperties.id;
                otherNodeId = toId;
              }
            }

// Only edges from the cluster outwards are being replaced.
            if (childNodesObj[otherNodeId] === undefined) {
              createEdges.push({
                edge: edge,
                fromId: fromId,
                toId: toId
              });
            }
          }
        }
      }

//
      // Here we actually create the replacement edges.
      //
      // We could not do this in the loop above as the creation process
      // would add an edge to the edges array we are iterating over.
      //
      // NOTE: a clustered edge can have multiple base edges!
      //
      var newEdges = [];

/**
       * Find a cluster edge which matches the given created edge.
       *
       * @param {vis.Edge} createdEdge
       * @returns {vis.Edge}
       */
      var getNewEdge = function getNewEdge(createdEdge) {
        for (var _j2 = 0; _j2 < newEdges.length; _j2++) {
          var newEdge = newEdges[_j2];

// We replace both to and from edges with a single cluster edge
          var matchToDirection = createdEdge.fromId === newEdge.fromId && createdEdge.toId === newEdge.toId;
          var matchFromDirection = createdEdge.fromId === newEdge.toId && createdEdge.toId === newEdge.fromId;
          if (matchToDirection || matchFromDirection) {
            return newEdge;
          }
        }
        return null;
      };
      for (var _j3 = 0; _j3 < createEdges.length; _j3++) {
        var createdEdge = createEdges[_j3];
        var _edge = createdEdge.edge;
        var newEdge = getNewEdge(createdEdge);
        if (newEdge === null) {
          // Create a clustered edge for this connection
          newEdge = this._createClusteredEdge(createdEdge.fromId, createdEdge.toId, _edge, clusterEdgeProperties);
          newEdges.push(newEdge);
        } else {
          newEdge.clusteringEdgeReplacingIds.push(_edge.id);
        }

// also reference the new edge in the old edge
        this.body.edges[_edge.id].edgeReplacedById = newEdge.id;

// hide the replaced edge
        this._backupEdgeOptions(_edge);
        _edge.setOptions({
          physics: false
        });
      }
    }

/**
     * This function checks the options that can be supplied to the different cluster functions
     * for certain fields and inserts defaults if needed
     *
     * @param {object} options
     * @returns {*}
     * @private
     */
  }, {
    key: "_checkOptions",
    value: function _checkOptions() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      if (options.clusterEdgeProperties === undefined) {
        options.clusterEdgeProperties = {};
      }
      if (options.clusterNodeProperties === undefined) {
        options.clusterNodeProperties = {};
      }
      return options;
    }

/**
     *
     * @param {object}    childNodesObj         | object with node objects, id as keys, same as childNodes except it also contains a source node
     * @param {object}    childEdgesObj         | object with edge objects, id as keys
     * @param {Array}     options               | object with {clusterNodeProperties, clusterEdgeProperties, processProperties}
     * @param {boolean}   refreshData | when true, do not wrap up
     * @private
     */
  }, {
    key: "_cluster",
    value: function _cluster(childNodesObj, childEdgesObj, options) {
      var refreshData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;
      // Remove nodes which are already clustered
      var tmpNodesToRemove = [];
      for (var nodeId in childNodesObj) {
        if (Object.prototype.hasOwnProperty.call(childNodesObj, nodeId)) {
          if (this.clusteredNodes[nodeId] !== undefined) {
            tmpNodesToRemove.push(nodeId);
          }
        }
      }
      for (var n = 0; n < tmpNodesToRemove.length; ++n) {
        delete childNodesObj[tmpNodesToRemove[n]];
      }

// kill condition: no nodes don't bother
      if (_Object$keys(childNodesObj).length == 0) {
        return;
      }

// allow clusters of 1 if options allow
      if (_Object$keys(childNodesObj).length == 1 && options.clusterNodeProperties.allowSingleNodeCluster != true) {
        return;
      }
      var clusterNodeProperties = deepExtend({}, options.clusterNodeProperties);

// construct the clusterNodeProperties
      if (options.processProperties !== undefined) {
        // get the childNode options
        var childNodesOptions = [];
        for (var _nodeId in childNodesObj) {
          if (Object.prototype.hasOwnProperty.call(childNodesObj, _nodeId)) {
            var clonedOptions = NetworkUtil.cloneOptions(childNodesObj[_nodeId]);
            childNodesOptions.push(clonedOptions);
          }
        }

// get cluster properties based on childNodes
        var childEdgesOptions = [];
        for (var edgeId in childEdgesObj) {
          if (Object.prototype.hasOwnProperty.call(childEdgesObj, edgeId)) {
            // these cluster edges will be removed on creation of the cluster.
            if (edgeId.substr(0, 12) !== "clusterEdge:") {
              var _clonedOptions = NetworkUtil.cloneOptions(childEdgesObj[edgeId], "edge");
              childEdgesOptions.push(_clonedOptions);
            }
          }
        }
        clusterNodeProperties = options.processProperties(clusterNodeProperties, childNodesOptions, childEdgesOptions);
        if (!clusterNodeProperties) {
          throw new Error("The processProperties function does not return properties!");
        }
      }

// check if we have an unique id;
      if (clusterNodeProperties.id === undefined) {
        clusterNodeProperties.id = "cluster:" + v4();
      }
      var clusterId = clusterNodeProperties.id;
      if (clusterNodeProperties.label === undefined) {
        clusterNodeProperties.label = "cluster";
      }

// give the clusterNode a position if it does not have one.
      var pos = undefined;
      if (clusterNodeProperties.x === undefined) {
        pos = this._getClusterPosition(childNodesObj);
        clusterNodeProperties.x = pos.x;
      }
      if (clusterNodeProperties.y === undefined) {
        if (pos === undefined) {
          pos = this._getClusterPosition(childNodesObj);
        }
        clusterNodeProperties.y = pos.y;
      }

// force the ID to remain the same
      clusterNodeProperties.id = clusterId;

// create the cluster Node
      // Note that allowSingleNodeCluster, if present, is stored in the options as well
      var clusterNode = this.body.functions.createNode(clusterNodeProperties, Cluster);
      clusterNode.containedNodes = childNodesObj;
      clusterNode.containedEdges = childEdgesObj;
      // cache a copy from the cluster edge properties if we have to reconnect others later on
      clusterNode.clusterEdgeProperties = options.clusterEdgeProperties;

// finally put the cluster node into global
      this.body.nodes[clusterNodeProperties.id] = clusterNode;
      this._clusterEdges(childNodesObj, childEdgesObj, clusterNodeProperties, options.clusterEdgeProperties);

// set ID to undefined so no duplicates arise
      clusterNodeProperties.id = undefined;

// wrap up
      if (refreshData === true) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     *
     * @param {Edge} edge
     * @private
     */
  }, {
    key: "_backupEdgeOptions",
    value: function _backupEdgeOptions(edge) {
      if (this.clusteredEdges[edge.id] === undefined) {
        this.clusteredEdges[edge.id] = {
          physics: edge.options.physics
        };
      }
    }

/**
     *
     * @param {Edge} edge
     * @private
     */
  }, {
    key: "_restoreEdge",
    value: function _restoreEdge(edge) {
      var originalOptions = this.clusteredEdges[edge.id];
      if (originalOptions !== undefined) {
        edge.setOptions({
          physics: originalOptions.physics
        });
        delete this.clusteredEdges[edge.id];
      }
    }

/**
     * Check if a node is a cluster.
     *
     * @param {Node.id} nodeId
     * @returns {*}
     */
  }, {
    key: "isCluster",
    value: function isCluster(nodeId) {
      if (this.body.nodes[nodeId] !== undefined) {
        return this.body.nodes[nodeId].isCluster === true;
      } else {
        console.error("Node does not exist.");
        return false;
      }
    }

/**
     * get the position of the cluster node based on what's inside
     *
     * @param {object} childNodesObj    | object with node objects, id as keys
     * @returns {{x: number, y: number}}
     * @private
     */
  }, {
    key: "_getClusterPosition",
    value: function _getClusterPosition(childNodesObj) {
      var childKeys = _Object$keys(childNodesObj);
      var minX = childNodesObj[childKeys[0]].x;
      var maxX = childNodesObj[childKeys[0]].x;
      var minY = childNodesObj[childKeys[0]].y;
      var maxY = childNodesObj[childKeys[0]].y;
      var node;
      for (var i = 1; i < childKeys.length; i++) {
        node = childNodesObj[childKeys[i]];
        minX = node.x < minX ? node.x : minX;
        maxX = node.x > maxX ? node.x : maxX;
        minY = node.y < minY ? node.y : minY;
        maxY = node.y > maxY ? node.y : maxY;
      }
      return {
        x: 0.5 * (minX + maxX),
        y: 0.5 * (minY + maxY)
      };
    }

/**
     * Open a cluster by calling this function.
     *
     * @param {vis.Edge.id}  clusterNodeId | the ID of the cluster node
     * @param {object} options
     * @param {boolean} refreshData | wrap up afterwards if not true
     */
  }, {
    key: "openCluster",
    value: function openCluster(clusterNodeId, options) {
      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
      // kill conditions
      if (clusterNodeId === undefined) {
        throw new Error("No clusterNodeId supplied to openCluster.");
      }
      var clusterNode = this.body.nodes[clusterNodeId];
      if (clusterNode === undefined) {
        throw new Error("The clusterNodeId supplied to openCluster does not exist.");
      }
      if (clusterNode.isCluster !== true || clusterNode.containedNodes === undefined || clusterNode.containedEdges === undefined) {
        throw new Error("The node:" + clusterNodeId + " is not a valid cluster.");
      }

// Check if current cluster is clustered itself
      var stack = this.findNode(clusterNodeId);
      var parentIndex = _indexOfInstanceProperty(stack).call(stack, clusterNodeId) - 1;
      if (parentIndex >= 0) {
        // Current cluster is clustered; transfer contained nodes and edges to parent
        var parentClusterNodeId = stack[parentIndex];
        var parentClusterNode = this.body.nodes[parentClusterNodeId];

// clustering.clusteredNodes and clustering.clusteredEdges remain unchanged
        parentClusterNode._openChildCluster(clusterNodeId);

// All components of child cluster node have been transferred. It can die now.
        delete this.body.nodes[clusterNodeId];
        if (refreshData === true) {
          this.body.emitter.emit("_dataChanged");
        }
        return;
      }

// main body
      var containedNodes = clusterNode.containedNodes;
      var containedEdges = clusterNode.containedEdges;

// allow the user to position the nodes after release.
      if (options !== undefined && options.releaseFunction !== undefined && typeof options.releaseFunction === "function") {
        var positions = {};
        var clusterPosition = {
          x: clusterNode.x,
          y: clusterNode.y
        };
        for (var nodeId in containedNodes) {
          if (Object.prototype.hasOwnProperty.call(containedNodes, nodeId)) {
            var containedNode = this.body.nodes[nodeId];
            positions[nodeId] = {
              x: containedNode.x,
              y: containedNode.y
            };
          }
        }
        var newPositions = options.releaseFunction(clusterPosition, positions);
        for (var _nodeId2 in containedNodes) {
          if (Object.prototype.hasOwnProperty.call(containedNodes, _nodeId2)) {
            var _containedNode = this.body.nodes[_nodeId2];
            if (newPositions[_nodeId2] !== undefined) {
              _containedNode.x = newPositions[_nodeId2].x === undefined ? clusterNode.x : newPositions[_nodeId2].x;
              _containedNode.y = newPositions[_nodeId2].y === undefined ? clusterNode.y : newPositions[_nodeId2].y;
            }
          }
        }
      } else {
        // copy the position from the cluster
        forEach$1(containedNodes, function (containedNode) {
          // inherit position
          if (containedNode.options.fixed.x === false) {
            containedNode.x = clusterNode.x;
          }
          if (containedNode.options.fixed.y === false) {
            containedNode.y = clusterNode.y;
          }
        });
      }

// release nodes
      for (var _nodeId3 in containedNodes) {
        if (Object.prototype.hasOwnProperty.call(containedNodes, _nodeId3)) {
          var _containedNode2 = this.body.nodes[_nodeId3];

// inherit speed
          _containedNode2.vx = clusterNode.vx;
          _containedNode2.vy = clusterNode.vy;
          _containedNode2.setOptions({
            physics: true
          });
          delete this.clusteredNodes[_nodeId3];
        }
      }

// copy the clusterNode edges because we cannot iterate over an object that we add or remove from.
      var edgesToBeDeleted = [];
      for (var i = 0; i < clusterNode.edges.length; i++) {
        edgesToBeDeleted.push(clusterNode.edges[i]);
      }

// actually handling the deleting.
      for (var _i3 = 0; _i3 < edgesToBeDeleted.length; _i3++) {
        var edge = edgesToBeDeleted[_i3];
        var otherNodeId = this._getConnectedId(edge, clusterNodeId);
        var otherNode = this.clusteredNodes[otherNodeId];
        for (var j = 0; j < edge.clusteringEdgeReplacingIds.length; j++) {
          var transferId = edge.clusteringEdgeReplacingIds[j];
          var transferEdge = this.body.edges[transferId];
          if (transferEdge === undefined) continue;

// if the other node is in another cluster, we transfer ownership of this edge to the other cluster
          if (otherNode !== undefined) {
            // transfer ownership:
            var otherCluster = this.body.nodes[otherNode.clusterId];
            otherCluster.containedEdges[transferEdge.id] = transferEdge;

// delete local reference
            delete containedEdges[transferEdge.id];

// get to and from
            var fromId = transferEdge.fromId;
            var toId = transferEdge.toId;
            if (transferEdge.toId == otherNodeId) {
              toId = otherNode.clusterId;
            } else {
              fromId = otherNode.clusterId;
            }

// create new cluster edge from the otherCluster
            this._createClusteredEdge(fromId, toId, transferEdge, otherCluster.clusterEdgeProperties, {
              hidden: false,
              physics: true
            });
          } else {
            this._restoreEdge(transferEdge);
          }
        }
        edge.remove();
      }

// handle the releasing of the edges
      for (var edgeId in containedEdges) {
        if (Object.prototype.hasOwnProperty.call(containedEdges, edgeId)) {
          this._restoreEdge(containedEdges[edgeId]);
        }
      }

// remove clusterNode
      delete this.body.nodes[clusterNodeId];
      if (refreshData === true) {
        this.body.emitter.emit("_dataChanged");
      }
    }

/**
     *
     * @param {Cluster.id} clusterId
     * @returns {Array.<Node.id>}
     */
  }, {
    key: "getNodesInCluster",
    value: function getNodesInCluster(clusterId) {
      var nodesArray = [];
      if (this.isCluster(clusterId) === true) {
        var containedNodes = this.body.nodes[clusterId].containedNodes;
        for (var nodeId in containedNodes) {
          if (Object.prototype.hasOwnProperty.call(containedNodes, nodeId)) {
            nodesArray.push(this.body.nodes[nodeId].id);
          }
        }
      }
      return nodesArray;
    }

/**
     * Get the stack clusterId's that a certain node resides in. cluster A -> cluster B -> cluster C -> node
     *
     * If a node can't be found in the chain, return an empty array.
     *
     * @param {string|number} nodeId
     * @returns {Array}
     */
  }, {
    key: "findNode",
    value: function findNode(nodeId) {
      var stack = [];
      var max = 100;
      var counter = 0;
      var node;
      while (this.clusteredNodes[nodeId] !== undefined && counter < max) {
        node = this.body.nodes[nodeId];
        if (node === undefined) return [];
        stack.push(node.id);
        nodeId = this.clusteredNodes[nodeId].clusterId;
        counter++;
      }
      node = this.body.nodes[nodeId];
      if (node === undefined) return [];
      stack.push(node.id);
      _reverseInstanceProperty(stack).call(stack);
      return stack;
    }

/**
     * Using a clustered nodeId, update with the new options
     *
     * @param {Node.id} clusteredNodeId
     * @param {object} newOptions
     */
  }, {
    key: "updateClusteredNode",
    value: function updateClusteredNode(clusteredNodeId, newOptions) {
      if (clusteredNodeId === undefined) {
        throw new Error("No clusteredNodeId supplied to updateClusteredNode.");
      }
      if (newOptions === undefined) {
        throw new Error("No newOptions supplied to updateClusteredNode.");
      }
      if (this.body.nodes[clusteredNodeId] === undefined) {
        throw new Error("The clusteredNodeId supplied to updateClusteredNode does not exist.");
      }
      this.body.nodes[clusteredNodeId].setOptions(newOptions);
      this.body.emitter.emit("_dataChanged");
    }

/**
     * Using a base edgeId, update all related clustered edges with the new options
     *
     * @param {vis.Edge.id} startEdgeId
     * @param {object} newOptions
     */
  }, {
    key: "updateEdge",
    value: function updateEdge(startEdgeId, newOptions) {
      if (startEdgeId === undefined) {
        throw new Error("No startEdgeId supplied to updateEdge.");
      }
      if (newOptions === undefined) {
        throw new Error("No newOptions supplied to updateEdge.");
      }
      if (this.body.edges[startEdgeId] === undefined) {
        throw new Error("The startEdgeId supplied to updateEdge does not exist.");
      }
      var allEdgeIds = this.getClusteredEdges(startEdgeId);
      for (var i = 0; i < allEdgeIds.length; i++) {
        var edge = this.body.edges[allEdgeIds[i]];
        edge.setOptions(newOptions);
      }
      this.body.emitter.emit("_dataChanged");
    }

/**
     * Get a stack of clusterEdgeId's (+base edgeid) that a base edge is the same as. cluster edge C -> cluster edge B -> cluster edge A -> base edge(edgeId)
     *
     * @param {vis.Edge.id} edgeId
     * @returns {Array.<vis.Edge.id>}
     */
  }, {
    key: "getClusteredEdges",
    value: function getClusteredEdges(edgeId) {
      var stack = [];
      var max = 100;
      var counter = 0;
      while (edgeId !== undefined && this.body.edges[edgeId] !== undefined && counter < max) {
        stack.push(this.body.edges[edgeId].id);
        edgeId = this.body.edges[edgeId].edgeReplacedById;
        counter++;
      }
      _reverseInstanceProperty(stack).call(stack);
      return stack;
    }

/**
     * Get the base edge id of clusterEdgeId. cluster edge (clusteredEdgeId) -> cluster edge B -> cluster edge C -> base edge
     *
     * @param {vis.Edge.id} clusteredEdgeId
     * @returns {vis.Edge.id} baseEdgeId
     *
     * TODO: deprecate in 5.0.0. Method getBaseEdges() is the correct one to use.
     */
  }, {
    key: "getBaseEdge",
    value: function getBaseEdge(clusteredEdgeId) {
      // Just kludge this by returning the first base edge id found
      return this.getBaseEdges(clusteredEdgeId)[0];
    }

/**
     * Get all regular edges for this clustered edge id.
     *
     * @param {vis.Edge.id} clusteredEdgeId
     * @returns {Array.<vis.Edge.id>} all baseEdgeId's under this clustered edge
     */
  }, {
    key: "getBaseEdges",
    value: function getBaseEdges(clusteredEdgeId) {
      var IdsToHandle = [clusteredEdgeId];
      var doneIds = [];
      var foundIds = [];
      var max = 100;
      var counter = 0;
      while (IdsToHandle.length > 0 && counter < max) {
        var nextId = IdsToHandle.pop();
        if (nextId === undefined) continue; // Paranoia here and onwards
        var nextEdge = this.body.edges[nextId];
        if (nextEdge === undefined) continue;
        counter++;
        var replacingIds = nextEdge.clusteringEdgeReplacingIds;
        if (replacingIds === undefined) {
          // nextId is a base id
          foundIds.push(nextId);
        } else {
          // Another cluster edge, unravel this one as well
          for (var i = 0; i < replacingIds.length; ++i) {
            var replacingId = replacingIds[i];

// Don't add if already handled
            // TODO: never triggers; find a test-case which does
            if (_indexOfInstanceProperty(IdsToHandle).call(IdsToHandle, replacingIds) !== -1 || _indexOfInstanceProperty(doneIds).call(doneIds, replacingIds) !== -1) {
              continue;
            }
            IdsToHandle.push(replacingId);
          }
        }
        doneIds.push(nextId);
      }
      return foundIds;
    }

/**
     * Get the Id the node is connected to
     *
     * @param {vis.Edge} edge
     * @param {Node.id} nodeId
     * @returns {*}
     * @private
     */
  }, {
    key: "_getConnectedId",
    value: function _getConnectedId(edge, nodeId) {
      if (edge.toId != nodeId) {
        return edge.toId;
      } else if (edge.fromId != nodeId) {
        return edge.fromId;
      } else {
        return edge.fromId;
      }
    }

/**
     * We determine how many connections denote an important hub.
     * We take the mean + 2*std as the important hub size. (Assuming a normal distribution of data, ~2.2%)
     *
     * @returns {number}
     * @private
     */
  }, {
    key: "_getHubSize",
    value: function _getHubSize() {
      var average = 0;
      var averageSquared = 0;
      var hubCounter = 0;
      var largestHub = 0;
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var node = this.body.nodes[this.body.nodeIndices[i]];
        if (node.edges.length > largestHub) {
          largestHub = node.edges.length;
        }
        average += node.edges.length;
        averageSquared += Math.pow(node.edges.length, 2);
        hubCounter += 1;
      }
      average = average / hubCounter;
      averageSquared = averageSquared / hubCounter;
      var variance = averageSquared - Math.pow(average, 2);
      var standardDeviation = Math.sqrt(variance);
      var hubThreshold = Math.floor(average + 2 * standardDeviation);

// always have at least one to cluster
      if (hubThreshold > largestHub) {
        hubThreshold = largestHub;
      }
      return hubThreshold;
    }

/**
     * Create an edge for the cluster representation.
     *
     * @param {Node.id} fromId
     * @param {Node.id} toId
     * @param {vis.Edge} baseEdge
     * @param {object} clusterEdgeProperties
     * @param {object} extraOptions
     * @returns {Edge} newly created clustered edge
     * @private
     */
  }, {
    key: "_createClusteredEdge",
    value: function _createClusteredEdge(fromId, toId, baseEdge, clusterEdgeProperties, extraOptions) {
      // copy the options of the edge we will replace
      var clonedOptions = NetworkUtil.cloneOptions(baseEdge, "edge");
      // make sure the properties of clusterEdges are superimposed on it
      deepExtend(clonedOptions, clusterEdgeProperties);

// set up the edge
      clonedOptions.from = fromId;
      clonedOptions.to = toId;
      clonedOptions.id = "clusterEdge:" + v4();

// apply the edge specific options to it if specified
      if (extraOptions !== undefined) {
        deepExtend(clonedOptions, extraOptions);
      }
      var newEdge = this.body.functions.createEdge(clonedOptions);
      newEdge.clusteringEdgeReplacingIds = [baseEdge.id];
      newEdge.connect();

// Register the new edge
      this.body.edges[newEdge.id] = newEdge;
      return newEdge;
    }

/**
     * Add the passed child nodes and edges to the given cluster node.
     *
     * @param {object | Node} childNodes  hash of nodes or single node to add in cluster
     * @param {object | Edge} childEdges  hash of edges or single edge to take into account when clustering
     * @param {Node} clusterNode  cluster node to add nodes and edges to
     * @param {object} [clusterEdgeProperties]
     * @private
     */
  }, {
    key: "_clusterEdges",
    value: function _clusterEdges(childNodes, childEdges, clusterNode, clusterEdgeProperties) {
      if (childEdges instanceof Edge) {
        var edge = childEdges;
        var obj = {};
        obj[edge.id] = edge;
        childEdges = obj;
      }
      if (childNodes instanceof Node) {
        var node = childNodes;
        var _obj = {};
        _obj[node.id] = node;
        childNodes = _obj;
      }
      if (clusterNode === undefined || clusterNode === null) {
        throw new Error("_clusterEdges: parameter clusterNode required");
      }
      if (clusterEdgeProperties === undefined) {
        // Take the required properties from the cluster node
        clusterEdgeProperties = clusterNode.clusterEdgeProperties;
      }

// create the new edges that will connect to the cluster.
      // All self-referencing edges will be added to childEdges here.
      this._createClusterEdges(childNodes, childEdges, clusterNode, clusterEdgeProperties);

// disable the childEdges
      for (var edgeId in childEdges) {
        if (Object.prototype.hasOwnProperty.call(childEdges, edgeId)) {
          if (this.body.edges[edgeId] !== undefined) {
            var _edge2 = this.body.edges[edgeId];
            // cache the options before changing
            this._backupEdgeOptions(_edge2);
            // disable physics and hide the edge
            _edge2.setOptions({
              physics: false
            });
          }
        }
      }

// disable the childNodes
      for (var nodeId in childNodes) {
        if (Object.prototype.hasOwnProperty.call(childNodes, nodeId)) {
          this.clusteredNodes[nodeId] = {
            clusterId: clusterNode.id,
            node: this.body.nodes[nodeId]
          };
          this.body.nodes[nodeId].setOptions({
            physics: false
          });
        }
      }
    }

/**
     * Determine in which cluster given nodeId resides.
     *
     * If not in cluster, return undefined.
     *
     * NOTE: If you know a cleaner way to do this, please enlighten me (wimrijnders).
     *
     * @param {Node.id} nodeId
     * @returns {Node|undefined} Node instance for cluster, if present
     * @private
     */
  }, {
    key: "_getClusterNodeForNode",
    value: function _getClusterNodeForNode(nodeId) {
      if (nodeId === undefined) return undefined;
      var clusteredNode = this.clusteredNodes[nodeId];

// NOTE: If no cluster info found, it should actually be an error
      if (clusteredNode === undefined) return undefined;
      var clusterId = clusteredNode.clusterId;
      if (clusterId === undefined) return undefined;
      return this.body.nodes[clusterId];
    }

/**
     * Internal helper function for conditionally removing items in array
     *
     * Done like this because Array.filter() is not fully supported by all IE's.
     *
     * @param {Array} arr
     * @param {Function} callback
     * @returns {Array}
     * @private
     */
  }, {
    key: "_filter",
    value: function _filter(arr, callback) {
      var ret = [];
      forEach$1(arr, function (item) {
        if (callback(item)) {
          ret.push(item);
        }
      });
      return ret;
    }

/**
     * Scan all edges for changes in clustering and adjust this if necessary.
     *
     * Call this (internally) after there has been a change in node or edge data.
     *
     * Pre: States of this.body.nodes and this.body.edges consistent
     * Pre: this.clusteredNodes and this.clusteredEdge consistent with containedNodes and containedEdges
     *      of cluster nodes.
     */
  }, {
    key: "_updateState",
    value: function _updateState() {
      var _this4 = this;
      var nodeId;
      var deletedNodeIds = [];
      var deletedEdgeIds = {};

/**
       * Utility function to iterate over clustering nodes only
       *
       * @param {Function} callback  function to call for each cluster node
       */
      var eachClusterNode = function eachClusterNode(callback) {
        forEach$1(_this4.body.nodes, function (node) {
          if (node.isCluster === true) {
            callback(node);
          }
        });
      };

//
      // Remove deleted regular nodes from clustering
      //

// Determine the deleted nodes
      for (nodeId in this.clusteredNodes) {
        if (!Object.prototype.hasOwnProperty.call(this.clusteredNodes, nodeId)) continue;
        var node = this.body.nodes[nodeId];
        if (node === undefined) {
          deletedNodeIds.push(nodeId);
        }
      }

// Remove nodes from cluster nodes
      eachClusterNode(function (clusterNode) {
        for (var n = 0; n < deletedNodeIds.length; n++) {
          delete clusterNode.containedNodes[deletedNodeIds[n]];
        }
      });

// Remove nodes from cluster list
      for (var n = 0; n < deletedNodeIds.length; n++) {
        delete this.clusteredNodes[deletedNodeIds[n]];
      }

//
      // Remove deleted edges from clustering
      //

// Add the deleted clustered edges to the list
      forEach$1(this.clusteredEdges, function (edgeId) {
        var edge = _this4.body.edges[edgeId];
        if (edge === undefined || !edge.endPointsValid()) {
          deletedEdgeIds[edgeId] = edgeId;
        }
      });

// Cluster nodes can also contain edges which are not clustered,
      // i.e. nodes 1-2 within cluster with an edge in between.
      // So the cluster nodes also need to be scanned for invalid edges
      eachClusterNode(function (clusterNode) {
        forEach$1(clusterNode.containedEdges, function (edge, edgeId) {
          if (!edge.endPointsValid() && !deletedEdgeIds[edgeId]) {
            deletedEdgeIds[edgeId] = edgeId;
          }
        });
      });

// Also scan for cluster edges which need to be removed in the active list.
      // Regular edges have been removed beforehand, so this only picks up the cluster edges.
      forEach$1(this.body.edges, function (edge, edgeId) {
        // Explicitly scan the contained edges for validity
        var isValid = true;
        var replacedIds = edge.clusteringEdgeReplacingIds;
        if (replacedIds !== undefined) {
          var numValid = 0;
          forEach$1(replacedIds, function (containedEdgeId) {
            var containedEdge = _this4.body.edges[containedEdgeId];
            if (containedEdge !== undefined && containedEdge.endPointsValid()) {
              numValid += 1;
            }
          });
          isValid = numValid > 0;
        }
        if (!edge.endPointsValid() || !isValid) {
          deletedEdgeIds[edgeId] = edgeId;
        }
      });

// Remove edges from cluster nodes
      eachClusterNode(function (clusterNode) {
        forEach$1(deletedEdgeIds, function (deletedEdgeId) {
          delete clusterNode.containedEdges[deletedEdgeId];
          forEach$1(clusterNode.edges, function (edge, m) {
            if (edge.id === deletedEdgeId) {
              clusterNode.edges[m] = null; // Don't want to directly delete here, because in the loop
              return;
            }
            edge.clusteringEdgeReplacingIds = _this4._filter(edge.clusteringEdgeReplacingIds, function (id) {
              return !deletedEdgeIds[id];
            });
          });

// Clean up the nulls
          clusterNode.edges = _this4._filter(clusterNode.edges, function (item) {
            return item !== null;
          });
        });
      });

// Remove from cluster list
      forEach$1(deletedEdgeIds, function (edgeId) {
        delete _this4.clusteredEdges[edgeId];
      });

// Remove cluster edges from active list (this.body.edges).
      // deletedEdgeIds still contains id of regular edges, but these should all
      // be gone when you reach here.
      forEach$1(deletedEdgeIds, function (edgeId) {
        delete _this4.body.edges[edgeId];
      });

//
      // Check changed cluster state of edges
      //

// Iterating over keys here, because edges may be removed in the loop
      var ids = _Object$keys(this.body.edges);
      forEach$1(ids, function (edgeId) {
        var edge = _this4.body.edges[edgeId];
        var shouldBeClustered = _this4._isClusteredNode(edge.fromId) || _this4._isClusteredNode(edge.toId);
        if (shouldBeClustered === _this4._isClusteredEdge(edge.id)) {
          return; // all is well
        }

if (shouldBeClustered) {
          // add edge to clustering
          var clusterFrom = _this4._getClusterNodeForNode(edge.fromId);
          if (clusterFrom !== undefined) {
            _this4._clusterEdges(_this4.body.nodes[edge.fromId], edge, clusterFrom);
          }
          var clusterTo = _this4._getClusterNodeForNode(edge.toId);
          if (clusterTo !== undefined) {
            _this4._clusterEdges(_this4.body.nodes[edge.toId], edge, clusterTo);
          }

// TODO: check that it works for both edges clustered
          //       (This might be paranoia)
        } else {
          delete _this4._clusterEdges[edgeId];
          _this4._restoreEdge(edge);
          // This should not be happening, the state should
          // be properly updated at this point.
          //
          // If it *is* reached during normal operation, then we have to implement
          // undo clustering for this edge here.
          // throw new Error('remove edge from clustering not implemented!')
        }
      });

// Clusters may be nested to any level. Keep on opening until nothing to open
      var changed = false;
      var continueLoop = true;
      var _loop2 = function _loop2() {
        var clustersToOpen = [];

// Determine the id's of clusters that need opening
        eachClusterNode(function (clusterNode) {
          var numNodes = _Object$keys(clusterNode.containedNodes).length;
          var allowSingle = clusterNode.options.allowSingleNodeCluster === true;
          if (allowSingle && numNodes < 1 || !allowSingle && numNodes < 2) {
            clustersToOpen.push(clusterNode.id);
          }
        });

// Open them
        for (var _n = 0; _n < clustersToOpen.length; ++_n) {
          _this4.openCluster(clustersToOpen[_n], {}, false /* Don't refresh, we're in an refresh/update already */);
        }

continueLoop = clustersToOpen.length > 0;
        changed = changed || continueLoop;
      };
      while (continueLoop) {
        _loop2();
      }
      if (changed) {
        this._updateState(); // Redo this method (recursion possible! should be safe)
      }
    }

/**
     * Determine if node with given id is part of a cluster.
     *
     * @param {Node.id} nodeId
     * @returns {boolean} true if part of a cluster.
     */
  }, {
    key: "_isClusteredNode",
    value: function _isClusteredNode(nodeId) {
      return this.clusteredNodes[nodeId] !== undefined;
    }

/**
     * Determine if edge with given id is not visible due to clustering.
     *
     * An edge is considered clustered if:
     * - it is directly replaced by a clustering edge
     * - any of its connecting nodes is in a cluster
     *
     * @param {vis.Edge.id} edgeId
     * @returns {boolean} true if part of a cluster.
     */
  }, {
    key: "_isClusteredEdge",
    value: function _isClusteredEdge(edgeId) {
      return this.clusteredEdges[edgeId] !== undefined;
    }
  }]);
  return ClusterEngine;
}();

/**
 * Initializes window.requestAnimationFrame() to a usable form.
 *
 * Specifically, set up this method for the case of running on node.js with jsdom enabled.
 *
 * NOTES:
 *
 * On node.js, when calling this directly outside of this class, `window` is not defined.
 *   This happens even if jsdom is used.
 * For node.js + jsdom, `window` is available at the moment the constructor is called.
 *   For this reason, the called is placed within the constructor.
 * Even then, `window.requestAnimationFrame()` is not defined, so it still needs to be added.
 * During unit testing, it happens that the window object is reset during execution, causing
 *   a runtime error due to missing `requestAnimationFrame()`. This needs to be compensated for,
 *   see `_requestNextFrame()`.
 * Since this is a global object, it may affect other modules besides `Network`. With normal
 *   usage, this does not cause any problems. During unit testing, errors may occur. These have
 *   been compensated for, see comment block in _requestNextFrame().
 *
 * @private
 */
function _initRequestAnimationFrame() {
  var func;
  if (window !== undefined) {
    func = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
  }
  if (func === undefined) {
    // window or method not present, setting mock requestAnimationFrame
    window.requestAnimationFrame = function (callback) {
      //console.log("Called mock requestAnimationFrame");
      callback();
    };
  } else {
    window.requestAnimationFrame = func;
  }
}

/**
 * The canvas renderer
 */
var CanvasRenderer = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   */
  function CanvasRenderer(body, canvas) {
    _classCallCheck(this, CanvasRenderer);
    _initRequestAnimationFrame();
    this.body = body;
    this.canvas = canvas;
    this.redrawRequested = false;
    this.renderTimer = undefined;
    this.requiresTimeout = true;
    this.renderingActive = false;
    this.renderRequests = 0;
    this.allowRedraw = true;
    this.dragging = false;
    this.zooming = false;
    this.options = {};
    this.defaultOptions = {
      hideEdgesOnDrag: false,
      hideEdgesOnZoom: false,
      hideNodesOnDrag: false
    };
    _Object$assign(this.options, this.defaultOptions);
    this._determineBrowserMethod();
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(CanvasRenderer, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this = this,
        _context2;
      this.body.emitter.on("dragStart", function () {
        _this.dragging = true;
      });
      this.body.emitter.on("dragEnd", function () {
        _this.dragging = false;
      });
      this.body.emitter.on("zoom", function () {
        _this.zooming = true;
        window.clearTimeout(_this.zoomTimeoutId);
        _this.zoomTimeoutId = _setTimeout(function () {
          var _context;
          _this.zooming = false;
          _bindInstanceProperty$1(_context = _this._requestRedraw).call(_context, _this)();
        }, 250);
      });
      this.body.emitter.on("_resizeNodes", function () {
        _this._resizeNodes();
      });
      this.body.emitter.on("_redraw", function () {
        if (_this.renderingActive === false) {
          _this._redraw();
        }
      });
      this.body.emitter.on("_blockRedraw", function () {
        _this.allowRedraw = false;
      });
      this.body.emitter.on("_allowRedraw", function () {
        _this.allowRedraw = true;
        _this.redrawRequested = false;
      });
      this.body.emitter.on("_requestRedraw", _bindInstanceProperty$1(_context2 = this._requestRedraw).call(_context2, this));
      this.body.emitter.on("_startRendering", function () {
        _this.renderRequests += 1;
        _this.renderingActive = true;
        _this._startRendering();
      });
      this.body.emitter.on("_stopRendering", function () {
        _this.renderRequests -= 1;
        _this.renderingActive = _this.renderRequests > 0;
        _this.renderTimer = undefined;
      });
      this.body.emitter.on("destroy", function () {
        _this.renderRequests = 0;
        _this.allowRedraw = false;
        _this.renderingActive = false;
        if (_this.requiresTimeout === true) {
          clearTimeout(_this.renderTimer);
        } else {
          window.cancelAnimationFrame(_this.renderTimer);
        }
        _this.body.emitter.off();
      });
    }

/**
     *
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        var fields = ["hideEdgesOnDrag", "hideEdgesOnZoom", "hideNodesOnDrag"];
        selectiveDeepExtend(fields, this.options, options);
      }
    }

/**
     * Prepare the drawing of the next frame.
     *
     * Calls the callback when the next frame can or will be drawn.
     *
     * @param {Function} callback
     * @param {number} delay - timeout case only, wait this number of milliseconds
     * @returns {Function | undefined}
     * @private
     */
  }, {
    key: "_requestNextFrame",
    value: function _requestNextFrame(callback, delay) {
      // During unit testing, it happens that the mock window object is reset while
      // the next frame is still pending. Then, either 'window' is not present, or
      // 'requestAnimationFrame()' is not present because it is not defined on the
      // mock window object.
      //
      // As a consequence, unrelated unit tests may appear to fail, even if the problem
      // described happens in the current unit test.
      //
      // This is not something that will happen in normal operation, but we still need
      // to take it into account.
      //
      if (typeof window === "undefined") return; // Doing `if (window === undefined)` does not work here!

var timer;
      var myWindow = window; // Grab a reference to reduce the possibility that 'window' is reset
      // while running this method.

if (this.requiresTimeout === true) {
        // wait given number of milliseconds and perform the animation step function
        timer = _setTimeout(callback, delay);
      } else {
        if (myWindow.requestAnimationFrame) {
          timer = myWindow.requestAnimationFrame(callback);
        }
      }
      return timer;
    }

/**
     *
     * @private
     */
  }, {
    key: "_startRendering",
    value: function _startRendering() {
      if (this.renderingActive === true) {
        if (this.renderTimer === undefined) {
          var _context3;
          this.renderTimer = this._requestNextFrame(_bindInstanceProperty$1(_context3 = this._renderStep).call(_context3, this), this.simulationInterval);
        }
      }
    }

/**
     *
     * @private
     */
  }, {
    key: "_renderStep",
    value: function _renderStep() {
      if (this.renderingActive === true) {
        // reset the renderTimer so a new scheduled animation step can be set
        this.renderTimer = undefined;
        if (this.requiresTimeout === true) {
          // this schedules a new simulation step
          this._startRendering();
        }
        this._redraw();
        if (this.requiresTimeout === false) {
          // this schedules a new simulation step
          this._startRendering();
        }
      }
    }

/**
     * Redraw the network with the current data
     * chart will be resized too.
     */
  }, {
    key: "redraw",
    value: function redraw() {
      this.body.emitter.emit("setSize");
      this._redraw();
    }

/**
     * Redraw the network with the current data
     *
     * @private
     */
  }, {
    key: "_requestRedraw",
    value: function _requestRedraw() {
      var _this2 = this;
      if (this.redrawRequested !== true && this.renderingActive === false && this.allowRedraw === true) {
        this.redrawRequested = true;
        this._requestNextFrame(function () {
          _this2._redraw(false);
        }, 0);
      }
    }

/**
     * Redraw the network with the current data
     *
     * @param {boolean} [hidden=false] | Used to get the first estimate of the node sizes.
     *                                   Only the nodes are drawn after which they are quickly drawn over.
     * @private
     */
  }, {
    key: "_redraw",
    value: function _redraw() {
      var hidden = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      if (this.allowRedraw === true) {
        this.body.emitter.emit("initRedraw");
        this.redrawRequested = false;
        var drawLater = {
          drawExternalLabels: null
        };

// when the container div was hidden, this fixes it back up!
        if (this.canvas.frame.canvas.width === 0 || this.canvas.frame.canvas.height === 0) {
          this.canvas.setSize();
        }
        this.canvas.setTransform();
        var ctx = this.canvas.getContext();

// clear the canvas
        var w = this.canvas.frame.canvas.clientWidth;
        var h = this.canvas.frame.canvas.clientHeight;
        ctx.clearRect(0, 0, w, h);

// if the div is hidden, we stop the redraw here for performance.
        if (this.canvas.frame.clientWidth === 0) {
          return;
        }

// set scaling and translation
        ctx.save();
        ctx.translate(this.body.view.translation.x, this.body.view.translation.y);
        ctx.scale(this.body.view.scale, this.body.view.scale);
        ctx.beginPath();
        this.body.emitter.emit("beforeDrawing", ctx);
        ctx.closePath();
        if (hidden === false) {
          if ((this.dragging === false || this.dragging === true && this.options.hideEdgesOnDrag === false) && (this.zooming === false || this.zooming === true && this.options.hideEdgesOnZoom === false)) {
            this._drawEdges(ctx);
          }
        }
        if (this.dragging === false || this.dragging === true && this.options.hideNodesOnDrag === false) {
          var _this$_drawNodes = this._drawNodes(ctx, hidden),
            drawExternalLabels = _this$_drawNodes.drawExternalLabels;
          drawLater.drawExternalLabels = drawExternalLabels;
        }

// draw the arrows last so they will be at the top
        if (hidden === false) {
          if ((this.dragging === false || this.dragging === true && this.options.hideEdgesOnDrag === false) && (this.zooming === false || this.zooming === true && this.options.hideEdgesOnZoom === false)) {
            this._drawArrows(ctx);
          }
        }
        if (drawLater.drawExternalLabels != null) {
          drawLater.drawExternalLabels();
        }
        if (hidden === false) {
          this._drawSelectionBox(ctx);
        }
        ctx.beginPath();
        this.body.emitter.emit("afterDrawing", ctx);
        ctx.closePath();

// restore original scaling and translation
        ctx.restore();
        if (hidden === true) {
          ctx.clearRect(0, 0, w, h);
        }
      }
    }

/**
     * Redraw all nodes
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @param {boolean} [alwaysShow]
     * @private
     */
  }, {
    key: "_resizeNodes",
    value: function _resizeNodes() {
      this.canvas.setTransform();
      var ctx = this.canvas.getContext();
      ctx.save();
      ctx.translate(this.body.view.translation.x, this.body.view.translation.y);
      ctx.scale(this.body.view.scale, this.body.view.scale);
      var nodes = this.body.nodes;
      var node;

// resize all nodes
      for (var nodeId in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, nodeId)) {
          node = nodes[nodeId];
          node.resize(ctx);
          node.updateBoundingBox(ctx, node.selected);
        }
      }

// restore original scaling and translation
      ctx.restore();
    }

/**
     * Redraw all nodes
     *
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @param {boolean} [alwaysShow]
     * @private
     * @returns {object} Callbacks to draw later on higher layers.
     */
  }, {
    key: "_drawNodes",
    value: function _drawNodes(ctx) {
      var alwaysShow = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var nodes = this.body.nodes;
      var nodeIndices = this.body.nodeIndices;
      var node;
      var selected = [];
      var hovered = [];
      var margin = 20;
      var topLeft = this.canvas.DOMtoCanvas({
        x: -margin,
        y: -margin
      });
      var bottomRight = this.canvas.DOMtoCanvas({
        x: this.canvas.frame.canvas.clientWidth + margin,
        y: this.canvas.frame.canvas.clientHeight + margin
      });
      var viewableArea = {
        top: topLeft.y,
        left: topLeft.x,
        bottom: bottomRight.y,
        right: bottomRight.x
      };
      var _drawExternalLabels = [];

// draw unselected nodes;
      for (var _i = 0; _i < nodeIndices.length; _i++) {
        node = nodes[nodeIndices[_i]];
        // set selected and hovered nodes aside
        if (node.hover) {
          hovered.push(nodeIndices[_i]);
        } else if (node.isSelected()) {
          selected.push(nodeIndices[_i]);
        } else {
          if (alwaysShow === true) {
            var drawLater = node.draw(ctx);
            if (drawLater.drawExternalLabel != null) {
              _drawExternalLabels.push(drawLater.drawExternalLabel);
            }
          } else if (node.isBoundingBoxOverlappingWith(viewableArea) === true) {
            var _drawLater = node.draw(ctx);
            if (_drawLater.drawExternalLabel != null) {
              _drawExternalLabels.push(_drawLater.drawExternalLabel);
            }
          } else {
            node.updateBoundingBox(ctx, node.selected);
          }
        }
      }
      var i;
      var selectedLength = selected.length;
      var hoveredLength = hovered.length;

// draw the selected nodes on top
      for (i = 0; i < selectedLength; i++) {
        node = nodes[selected[i]];
        var _drawLater2 = node.draw(ctx);
        if (_drawLater2.drawExternalLabel != null) {
          _drawExternalLabels.push(_drawLater2.drawExternalLabel);
        }
      }

// draw hovered nodes above everything else: fixes https://github.com/visjs/vis-network/issues/226
      for (i = 0; i < hoveredLength; i++) {
        node = nodes[hovered[i]];
        var _drawLater3 = node.draw(ctx);
        if (_drawLater3.drawExternalLabel != null) {
          _drawExternalLabels.push(_drawLater3.drawExternalLabel);
        }
      }
      return {
        drawExternalLabels: function drawExternalLabels() {
          for (var _i2 = 0, _drawExternalLabels2 = _drawExternalLabels; _i2 < _drawExternalLabels2.length; _i2++) {
            var draw = _drawExternalLabels2[_i2];
            draw();
          }
        }
      };
    }

/**
     * Redraw all edges
     *
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @private
     */
  }, {
    key: "_drawEdges",
    value: function _drawEdges(ctx) {
      var edges = this.body.edges;
      var edgeIndices = this.body.edgeIndices;
      for (var i = 0; i < edgeIndices.length; i++) {
        var edge = edges[edgeIndices[i]];
        if (edge.connected === true) {
          edge.draw(ctx);
        }
      }
    }

/**
     * Redraw all arrows
     *
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @private
     */
  }, {
    key: "_drawArrows",
    value: function _drawArrows(ctx) {
      var edges = this.body.edges;
      var edgeIndices = this.body.edgeIndices;
      for (var i = 0; i < edgeIndices.length; i++) {
        var edge = edges[edgeIndices[i]];
        if (edge.connected === true) {
          edge.drawArrows(ctx);
        }
      }
    }

/**
     * Determine if the browser requires a setTimeout or a requestAnimationFrame. This was required because
     * some implementations (safari and IE9) did not support requestAnimationFrame
     *
     * @private
     */
  }, {
    key: "_determineBrowserMethod",
    value: function _determineBrowserMethod() {
      if (typeof window !== "undefined") {
        var browserType = navigator.userAgent.toLowerCase();
        this.requiresTimeout = false;
        if (_indexOfInstanceProperty(browserType).call(browserType, "msie 9.0") != -1) {
          // IE 9
          this.requiresTimeout = true;
        } else if (_indexOfInstanceProperty(browserType).call(browserType, "safari") != -1) {
          // safari
          if (_indexOfInstanceProperty(browserType).call(browserType, "chrome") <= -1) {
            this.requiresTimeout = true;
          }
        }
      } else {
        this.requiresTimeout = true;
      }
    }

/**
     * Redraw selection box
     *
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @private
     */
  }, {
    key: "_drawSelectionBox",
    value: function _drawSelectionBox(ctx) {
      if (this.body.selectionBox.show) {
        ctx.beginPath();
        var width = this.body.selectionBox.position.end.x - this.body.selectionBox.position.start.x;
        var height = this.body.selectionBox.position.end.y - this.body.selectionBox.position.start.y;
        ctx.rect(this.body.selectionBox.position.start.x, this.body.selectionBox.position.start.y, width, height);
        ctx.fillStyle = "rgba(151, 194, 252, 0.2)";
        ctx.fillRect(this.body.selectionBox.position.start.x, this.body.selectionBox.position.start.y, width, height);
        ctx.strokeStyle = "rgba(151, 194, 252, 1)";
        ctx.stroke();
      } else {
        ctx.closePath();
      }
    }
  }]);
  return CanvasRenderer;
}();

var setIntervalExports = {};
var setInterval$1 = {
  get exports(){ return setIntervalExports; },
  set exports(v){ setIntervalExports = v; },
};

var path$2 = path$y;

var setInterval$3 = path$2.setInterval;

(function (module) {
	module.exports = setInterval$3;
} (setInterval$1));

var _setInterval = /*@__PURE__*/getDefaultExportFromCjs$1(setIntervalExports);

/**
 * Register a touch event, taking place before a gesture
 *
 * @param {Hammer} hammer       A hammer instance
 * @param {Function} callback   Callback, called as callback(event)
 */
function onTouch(hammer, callback) {
  callback.inputHandler = function (event) {
    if (event.isFirst) {
      callback(event);
    }
  };
  hammer.on("hammer.input", callback.inputHandler);
}

/**
 * Register a release event, taking place after a gesture
 *
 * @param {Hammer} hammer       A hammer instance
 * @param {Function} callback   Callback, called as callback(event)
 * @returns {*}
 */
function onRelease(hammer, callback) {
  callback.inputHandler = function (event) {
    if (event.isFinal) {
      callback(event);
    }
  };
  return hammer.on("hammer.input", callback.inputHandler);
}

/**
 * Create the main frame for the Network.
 * This function is executed once when a Network object is created. The frame
 * contains a canvas, and this canvas contains all objects like the axis and
 * nodes.
 */
var Canvas = /*#__PURE__*/function () {
  /**
   * @param {object} body
   */
  function Canvas(body) {
    _classCallCheck(this, Canvas);
    this.body = body;
    this.pixelRatio = 1;
    this.cameraState = {};
    this.initialized = false;
    this.canvasViewCenter = {};
    this._cleanupCallbacks = [];
    this.options = {};
    this.defaultOptions = {
      autoResize: true,
      height: "100%",
      width: "100%"
    };
    _Object$assign(this.options, this.defaultOptions);
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(Canvas, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this = this,
        _context;
      // bind the events
      this.body.emitter.once("resize", function (obj) {
        if (obj.width !== 0) {
          _this.body.view.translation.x = obj.width * 0.5;
        }
        if (obj.height !== 0) {
          _this.body.view.translation.y = obj.height * 0.5;
        }
      });
      this.body.emitter.on("setSize", _bindInstanceProperty$1(_context = this.setSize).call(_context, this));
      this.body.emitter.on("destroy", function () {
        _this.hammerFrame.destroy();
        _this.hammer.destroy();
        _this._cleanUp();
      });
    }

/**
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      var _this2 = this;
      if (options !== undefined) {
        var fields = ["width", "height", "autoResize"];
        selectiveDeepExtend(fields, this.options, options);
      }

// Automatically adapt to changing size of the container element.
      this._cleanUp();
      if (this.options.autoResize === true) {
        var _context2;
        if (window.ResizeObserver) {
          // decent browsers, immediate reactions
          var observer = new ResizeObserver(function () {
            var changed = _this2.setSize();
            if (changed === true) {
              _this2.body.emitter.emit("_requestRedraw");
            }
          });
          var frame = this.frame;
          observer.observe(frame);
          this._cleanupCallbacks.push(function () {
            observer.unobserve(frame);
          });
        } else {
          // IE11, continous polling
          var resizeTimer = _setInterval(function () {
            var changed = _this2.setSize();
            if (changed === true) {
              _this2.body.emitter.emit("_requestRedraw");
            }
          }, 1000);
          this._cleanupCallbacks.push(function () {
            clearInterval(resizeTimer);
          });
        }

// Automatically adapt to changing size of the browser.
        var resizeFunction = _bindInstanceProperty$1(_context2 = this._onResize).call(_context2, this);
        addEventListener$1(window, "resize", resizeFunction);
        this._cleanupCallbacks.push(function () {
          removeEventListener$1(window, "resize", resizeFunction);
        });
      }
    }

/**
     * @private
     */
  }, {
    key: "_cleanUp",
    value: function _cleanUp() {
      var _context3, _context4, _context5;
      _forEachInstanceProperty(_context3 = _reverseInstanceProperty(_context4 = _spliceInstanceProperty(_context5 = this._cleanupCallbacks).call(_context5, 0)).call(_context4)).call(_context3, function (callback) {
        try {
          callback();
        } catch (error) {
          console.error(error);
        }
      });
    }

/**
     * @private
     */
  }, {
    key: "_onResize",
    value: function _onResize() {
      this.setSize();
      this.body.emitter.emit("_redraw");
    }

/**
     * Get and store the cameraState
     *
     * @param {number} [pixelRatio=this.pixelRatio]
     * @private
     */
  }, {
    key: "_getCameraState",
    value: function _getCameraState() {
      var pixelRatio = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.pixelRatio;
      if (this.initialized === true) {
        this.cameraState.previousWidth = this.frame.canvas.width / pixelRatio;
        this.cameraState.previousHeight = this.frame.canvas.height / pixelRatio;
        this.cameraState.scale = this.body.view.scale;
        this.cameraState.position = this.DOMtoCanvas({
          x: 0.5 * this.frame.canvas.width / pixelRatio,
          y: 0.5 * this.frame.canvas.height / pixelRatio
        });
      }
    }

/**
     * Set the cameraState
     *
     * @private
     */
  }, {
    key: "_setCameraState",
    value: function _setCameraState() {
      if (this.cameraState.scale !== undefined && this.frame.canvas.clientWidth !== 0 && this.frame.canvas.clientHeight !== 0 && this.pixelRatio !== 0 && this.cameraState.previousWidth > 0 && this.cameraState.previousHeight > 0) {
        var widthRatio = this.frame.canvas.width / this.pixelRatio / this.cameraState.previousWidth;
        var heightRatio = this.frame.canvas.height / this.pixelRatio / this.cameraState.previousHeight;
        var newScale = this.cameraState.scale;
        if (widthRatio != 1 && heightRatio != 1) {
          newScale = this.cameraState.scale * 0.5 * (widthRatio + heightRatio);
        } else if (widthRatio != 1) {
          newScale = this.cameraState.scale * widthRatio;
        } else if (heightRatio != 1) {
          newScale = this.cameraState.scale * heightRatio;
        }
        this.body.view.scale = newScale;
        // this comes from the view module.
        var currentViewCenter = this.DOMtoCanvas({
          x: 0.5 * this.frame.canvas.clientWidth,
          y: 0.5 * this.frame.canvas.clientHeight
        });
        var distanceFromCenter = {
          // offset from view, distance view has to change by these x and y to center the node
          x: currentViewCenter.x - this.cameraState.position.x,
          y: currentViewCenter.y - this.cameraState.position.y
        };
        this.body.view.translation.x += distanceFromCenter.x * this.body.view.scale;
        this.body.view.translation.y += distanceFromCenter.y * this.body.view.scale;
      }
    }

/**
     *
     * @param {number|string} value
     * @returns {string}
     * @private
     */
  }, {
    key: "_prepareValue",
    value: function _prepareValue(value) {
      if (typeof value === "number") {
        return value + "px";
      } else if (typeof value === "string") {
        if (_indexOfInstanceProperty(value).call(value, "%") !== -1 || _indexOfInstanceProperty(value).call(value, "px") !== -1) {
          return value;
        } else if (_indexOfInstanceProperty(value).call(value, "%") === -1) {
          return value + "px";
        }
      }
      throw new Error("Could not use the value supplied for width or height:" + value);
    }

/**
     * Create the HTML
     */
  }, {
    key: "_create",
    value: function _create() {
      // remove all elements from the container element.
      while (this.body.container.hasChildNodes()) {
        this.body.container.removeChild(this.body.container.firstChild);
      }
      this.frame = document.createElement("div");
      this.frame.className = "vis-network";
      this.frame.style.position = "relative";
      this.frame.style.overflow = "hidden";
      this.frame.tabIndex = 0; // tab index is required for keycharm to bind keystrokes to the div instead of the window

//////////////////////////////////////////////////////////////////

this.frame.canvas = document.createElement("canvas");
      this.frame.canvas.style.position = "relative";
      this.frame.appendChild(this.frame.canvas);
      if (!this.frame.canvas.getContext) {
        var noCanvas = document.createElement("DIV");
        noCanvas.style.color = "red";
        noCanvas.style.fontWeight = "bold";
        noCanvas.style.padding = "10px";
        noCanvas.innerText = "Error: your browser does not support HTML canvas";
        this.frame.canvas.appendChild(noCanvas);
      } else {
        this._setPixelRatio();
        this.setTransform();
      }

// add the frame to the container element
      this.body.container.appendChild(this.frame);
      this.body.view.scale = 1;
      this.body.view.translation = {
        x: 0.5 * this.frame.canvas.clientWidth,
        y: 0.5 * this.frame.canvas.clientHeight
      };
      this._bindHammer();
    }

/**
     * This function binds hammer, it can be repeated over and over due to the uniqueness check.
     *
     * @private
     */
  }, {
    key: "_bindHammer",
    value: function _bindHammer() {
      var _this3 = this;
      if (this.hammer !== undefined) {
        this.hammer.destroy();
      }
      this.drag = {};
      this.pinch = {};

// init hammer
      this.hammer = new Hammer(this.frame.canvas);
      this.hammer.get("pinch").set({
        enable: true
      });
      // enable to get better response, todo: test on mobile.
      this.hammer.get("pan").set({
        threshold: 5,
        direction: Hammer.DIRECTION_ALL
      });
      onTouch(this.hammer, function (event) {
        _this3.body.eventListeners.onTouch(event);
      });
      this.hammer.on("tap", function (event) {
        _this3.body.eventListeners.onTap(event);
      });
      this.hammer.on("doubletap", function (event) {
        _this3.body.eventListeners.onDoubleTap(event);
      });
      this.hammer.on("press", function (event) {
        _this3.body.eventListeners.onHold(event);
      });
      this.hammer.on("panstart", function (event) {
        _this3.body.eventListeners.onDragStart(event);
      });
      this.hammer.on("panmove", function (event) {
        _this3.body.eventListeners.onDrag(event);
      });
      this.hammer.on("panend", function (event) {
        _this3.body.eventListeners.onDragEnd(event);
      });
      this.hammer.on("pinch", function (event) {
        _this3.body.eventListeners.onPinch(event);
      });

// TODO: neatly cleanup these handlers when re-creating the Canvas, IF these are done with hammer, event.stopPropagation will not work?
      this.frame.canvas.addEventListener("wheel", function (event) {
        _this3.body.eventListeners.onMouseWheel(event);
      });
      this.frame.canvas.addEventListener("mousemove", function (event) {
        _this3.body.eventListeners.onMouseMove(event);
      });
      this.frame.canvas.addEventListener("contextmenu", function (event) {
        _this3.body.eventListeners.onContext(event);
      });
      this.hammerFrame = new Hammer(this.frame);
      onRelease(this.hammerFrame, function (event) {
        _this3.body.eventListeners.onRelease(event);
      });
    }

/**
     * Set a new size for the network
     *
     * @param {string} width   Width in pixels or percentage (for example '800px'
     *                         or '50%')
     * @param {string} height  Height in pixels or percentage  (for example '400px'
     *                         or '30%')
     * @returns {boolean}
     */
  }, {
    key: "setSize",
    value: function setSize() {
      var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.width;
      var height = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.options.height;
      width = this._prepareValue(width);
      height = this._prepareValue(height);
      var emitEvent = false;
      var oldWidth = this.frame.canvas.width;
      var oldHeight = this.frame.canvas.height;

// update the pixel ratio
      //
      // NOTE: Comment in following is rather inconsistent; this is the ONLY place in the code
      //       where it is assumed that the pixel ratio could change at runtime.
      //       The only way I can think of this happening is a rotating screen or tablet; but then
      //       there should be a mechanism for reloading the data (TODO: check if this is present).
      //
      //       If the assumption is true (i.e. pixel ratio can change at runtime), then *all* usage
      //       of pixel ratio must be overhauled for this.
      //
      //       For the time being, I will humor the assumption here, and in the rest of the code assume it is
      //       constant.
      var previousRatio = this.pixelRatio; // we cache this because the camera state storage needs the old value
      this._setPixelRatio();
      if (width != this.options.width || height != this.options.height || this.frame.style.width != width || this.frame.style.height != height) {
        this._getCameraState(previousRatio);
        this.frame.style.width = width;
        this.frame.style.height = height;
        this.frame.canvas.style.width = "100%";
        this.frame.canvas.style.height = "100%";
        this.frame.canvas.width = Math.round(this.frame.canvas.clientWidth * this.pixelRatio);
        this.frame.canvas.height = Math.round(this.frame.canvas.clientHeight * this.pixelRatio);
        this.options.width = width;
        this.options.height = height;
        this.canvasViewCenter = {
          x: 0.5 * this.frame.clientWidth,
          y: 0.5 * this.frame.clientHeight
        };
        emitEvent = true;
      } else {
        // this would adapt the width of the canvas to the width from 100% if and only if
        // there is a change.

var newWidth = Math.round(this.frame.canvas.clientWidth * this.pixelRatio);
        var newHeight = Math.round(this.frame.canvas.clientHeight * this.pixelRatio);

// store the camera if there is a change in size.
        if (this.frame.canvas.width !== newWidth || this.frame.canvas.height !== newHeight) {
          this._getCameraState(previousRatio);
        }
        if (this.frame.canvas.width !== newWidth) {
          this.frame.canvas.width = newWidth;
          emitEvent = true;
        }
        if (this.frame.canvas.height !== newHeight) {
          this.frame.canvas.height = newHeight;
          emitEvent = true;
        }
      }
      if (emitEvent === true) {
        this.body.emitter.emit("resize", {
          width: Math.round(this.frame.canvas.width / this.pixelRatio),
          height: Math.round(this.frame.canvas.height / this.pixelRatio),
          oldWidth: Math.round(oldWidth / this.pixelRatio),
          oldHeight: Math.round(oldHeight / this.pixelRatio)
        });

// restore the camera on change.
        this._setCameraState();
      }

// set initialized so the get and set camera will work from now on.
      this.initialized = true;
      return emitEvent;
    }

/**
     *
     * @returns {CanvasRenderingContext2D}
     */
  }, {
    key: "getContext",
    value: function getContext() {
      return this.frame.canvas.getContext("2d");
    }

/**
     * Determine the pixel ratio for various browsers.
     *
     * @returns {number}
     * @private
     */
  }, {
    key: "_determinePixelRatio",
    value: function _determinePixelRatio() {
      var ctx = this.getContext();
      if (ctx === undefined) {
        throw new Error("Could not get canvax context");
      }
      var numerator = 1;
      if (typeof window !== "undefined") {
        // (window !== undefined) doesn't work here!
        // Protection during unit tests, where 'window' can be missing
        numerator = window.devicePixelRatio || 1;
      }
      var denominator = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
      return numerator / denominator;
    }

/**
     * Lazy determination of pixel ratio.
     *
     * @private
     */
  }, {
    key: "_setPixelRatio",
    value: function _setPixelRatio() {
      this.pixelRatio = this._determinePixelRatio();
    }

/**
     * Set the transform in the contained context, based on its pixelRatio
     */
  }, {
    key: "setTransform",
    value: function setTransform() {
      var ctx = this.getContext();
      if (ctx === undefined) {
        throw new Error("Could not get canvax context");
      }
      ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);
    }

/**
     * Convert the X coordinate in DOM-space (coordinate point in browser relative to the container div) to
     * the X coordinate in canvas-space (the simulation sandbox, which the camera looks upon)
     *
     * @param {number} x
     * @returns {number}
     * @private
     */
  }, {
    key: "_XconvertDOMtoCanvas",
    value: function _XconvertDOMtoCanvas(x) {
      return (x - this.body.view.translation.x) / this.body.view.scale;
    }

/**
     * Convert the X coordinate in canvas-space (the simulation sandbox, which the camera looks upon) to
     * the X coordinate in DOM-space (coordinate point in browser relative to the container div)
     *
     * @param {number} x
     * @returns {number}
     * @private
     */
  }, {
    key: "_XconvertCanvasToDOM",
    value: function _XconvertCanvasToDOM(x) {
      return x * this.body.view.scale + this.body.view.translation.x;
    }

/**
     * Convert the Y coordinate in DOM-space (coordinate point in browser relative to the container div) to
     * the Y coordinate in canvas-space (the simulation sandbox, which the camera looks upon)
     *
     * @param {number} y
     * @returns {number}
     * @private
     */
  }, {
    key: "_YconvertDOMtoCanvas",
    value: function _YconvertDOMtoCanvas(y) {
      return (y - this.body.view.translation.y) / this.body.view.scale;
    }

/**
     * Convert the Y coordinate in canvas-space (the simulation sandbox, which the camera looks upon) to
     * the Y coordinate in DOM-space (coordinate point in browser relative to the container div)
     *
     * @param {number} y
     * @returns {number}
     * @private
     */
  }, {
    key: "_YconvertCanvasToDOM",
    value: function _YconvertCanvasToDOM(y) {
      return y * this.body.view.scale + this.body.view.translation.y;
    }

/**
     * @param {point} pos
     * @returns {point}
     */
  }, {
    key: "canvasToDOM",
    value: function canvasToDOM(pos) {
      return {
        x: this._XconvertCanvasToDOM(pos.x),
        y: this._YconvertCanvasToDOM(pos.y)
      };
    }

/**
     *
     * @param {point} pos
     * @returns {point}
     */
  }, {
    key: "DOMtoCanvas",
    value: function DOMtoCanvas(pos) {
      return {
        x: this._XconvertDOMtoCanvas(pos.x),
        y: this._YconvertDOMtoCanvas(pos.y)
      };
    }
  }]);
  return Canvas;
}();

/**
 * Validate the fit options, replace missing optional values by defaults etc.
 *
 * @param rawOptions - The raw options.
 * @param allNodeIds - All node ids that will be used if nodes are omitted in
 * the raw options.
 * @returns Options with everything filled in and validated.
 */
function normalizeFitOptions(rawOptions, allNodeIds) {
  var options = _Object$assign({
    nodes: allNodeIds,
    minZoomLevel: Number.MIN_VALUE,
    maxZoomLevel: 1
  }, rawOptions !== null && rawOptions !== void 0 ? rawOptions : {});
  if (!_Array$isArray(options.nodes)) {
    throw new TypeError("Nodes has to be an array of ids.");
  }
  if (options.nodes.length === 0) {
    options.nodes = allNodeIds;
  }
  if (!(typeof options.minZoomLevel === "number" && options.minZoomLevel > 0)) {
    throw new TypeError("Min zoom level has to be a number higher than zero.");
  }
  if (!(typeof options.maxZoomLevel === "number" && options.minZoomLevel <= options.maxZoomLevel)) {
    throw new TypeError("Max zoom level has to be a number higher than min zoom level.");
  }
  return options;
}

/**
 * The view
 */
var View = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   */
  function View(body, canvas) {
    var _context,
      _this = this,
      _context2;
    _classCallCheck(this, View);
    this.body = body;
    this.canvas = canvas;
    this.animationSpeed = 1 / this.renderRefreshRate;
    this.animationEasingFunction = "easeInOutQuint";
    this.easingTime = 0;
    this.sourceScale = 0;
    this.targetScale = 0;
    this.sourceTranslation = 0;
    this.targetTranslation = 0;
    this.lockedOnNodeId = undefined;
    this.lockedOnNodeOffset = undefined;
    this.touchTime = 0;
    this.viewFunction = undefined;
    this.body.emitter.on("fit", _bindInstanceProperty$1(_context = this.fit).call(_context, this));
    this.body.emitter.on("animationFinished", function () {
      _this.body.emitter.emit("_stopRendering");
    });
    this.body.emitter.on("unlockNode", _bindInstanceProperty$1(_context2 = this.releaseNode).call(_context2, this));
  }

/**
   *
   * @param {object} [options={}]
   */
  _createClass(View, [{
    key: "setOptions",
    value: function setOptions() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      this.options = options;
    }

/**
     * This function zooms out to fit all data on screen based on amount of nodes
     *
     * @param {object} [options={{nodes=Array}}]
     * @param options
     * @param {boolean} [initialZoom=false]  | zoom based on fitted formula or range, true = fitted, default = false;
     */
  }, {
    key: "fit",
    value: function fit(options) {
      var initialZoom = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      options = normalizeFitOptions(options, this.body.nodeIndices);
      var canvasWidth = this.canvas.frame.canvas.clientWidth;
      var canvasHeight = this.canvas.frame.canvas.clientHeight;
      var range;
      var zoomLevel;
      if (canvasWidth === 0 || canvasHeight === 0) {
        // There's no point in trying to fit into zero sized canvas. This could
        // potentially even result in invalid values being computed. For example
        // for network without nodes and zero sized canvas the zoom level would
        // end up being computed as 0/0 which results in NaN. In any other case
        // this would be 0/something which is again pointless to compute.
        zoomLevel = 1;
        range = NetworkUtil.getRange(this.body.nodes, options.nodes);
      } else if (initialZoom === true) {
        // check if more than half of the nodes have a predefined position. If so, we use the range, not the approximation.
        var positionDefined = 0;
        for (var nodeId in this.body.nodes) {
          if (Object.prototype.hasOwnProperty.call(this.body.nodes, nodeId)) {
            var node = this.body.nodes[nodeId];
            if (node.predefinedPosition === true) {
              positionDefined += 1;
            }
          }
        }
        if (positionDefined > 0.5 * this.body.nodeIndices.length) {
          this.fit(options, false);
          return;
        }
        range = NetworkUtil.getRange(this.body.nodes, options.nodes);
        var numberOfNodes = this.body.nodeIndices.length;
        zoomLevel = 12.662 / (numberOfNodes + 7.4147) + 0.0964822; // this is obtained from fitting a dataset from 5 points with scale levels that looked good.

// correct for larger canvasses.
        var factor = Math.min(canvasWidth / 600, canvasHeight / 600);
        zoomLevel *= factor;
      } else {
        this.body.emitter.emit("_resizeNodes");
        range = NetworkUtil.getRange(this.body.nodes, options.nodes);
        var xDistance = Math.abs(range.maxX - range.minX) * 1.1;
        var yDistance = Math.abs(range.maxY - range.minY) * 1.1;
        var xZoomLevel = canvasWidth / xDistance;
        var yZoomLevel = canvasHeight / yDistance;
        zoomLevel = xZoomLevel <= yZoomLevel ? xZoomLevel : yZoomLevel;
      }
      if (zoomLevel > options.maxZoomLevel) {
        zoomLevel = options.maxZoomLevel;
      } else if (zoomLevel < options.minZoomLevel) {
        zoomLevel = options.minZoomLevel;
      }
      var center = NetworkUtil.findCenter(range);
      var animationOptions = {
        position: center,
        scale: zoomLevel,
        animation: options.animation
      };
      this.moveTo(animationOptions);
    }

// animation

/**
     * Center a node in view.
     *
     * @param {number} nodeId
     * @param {number} [options]
     */
  }, {
    key: "focus",
    value: function focus(nodeId) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      if (this.body.nodes[nodeId] !== undefined) {
        var nodePosition = {
          x: this.body.nodes[nodeId].x,
          y: this.body.nodes[nodeId].y
        };
        options.position = nodePosition;
        options.lockedOnNode = nodeId;
        this.moveTo(options);
      } else {
        console.error("Node: " + nodeId + " cannot be found.");
      }
    }

/**
     *
     * @param {object} options  |  options.offset   = {x:number, y:number}   // offset from the center in DOM pixels
     *                          |  options.scale    = number                 // scale to move to
     *                          |  options.position = {x:number, y:number}   // position to move to
     *                          |  options.animation = {duration:number, easingFunction:String} || Boolean   // position to move to
     */
  }, {
    key: "moveTo",
    value: function moveTo(options) {
      if (options === undefined) {
        options = {};
        return;
      }
      if (options.offset != null) {
        if (options.offset.x != null) {
          // Coerce and verify that x is valid.
          options.offset.x = +options.offset.x;
          if (!_Number$isFinite(options.offset.x)) {
            throw new TypeError('The option "offset.x" has to be a finite number.');
          }
        } else {
          options.offset.x = 0;
        }
        if (options.offset.y != null) {
          // Coerce and verify that y is valid.
          options.offset.y = +options.offset.y;
          if (!_Number$isFinite(options.offset.y)) {
            throw new TypeError('The option "offset.y" has to be a finite number.');
          }
        } else {
          options.offset.x = 0;
        }
      } else {
        options.offset = {
          x: 0,
          y: 0
        };
      }
      if (options.position != null) {
        if (options.position.x != null) {
          // Coerce and verify that x is valid.
          options.position.x = +options.position.x;
          if (!_Number$isFinite(options.position.x)) {
            throw new TypeError('The option "position.x" has to be a finite number.');
          }
        } else {
          options.position.x = 0;
        }
        if (options.position.y != null) {
          // Coerce and verify that y is valid.
          options.position.y = +options.position.y;
          if (!_Number$isFinite(options.position.y)) {
            throw new TypeError('The option "position.y" has to be a finite number.');
          }
        } else {
          options.position.x = 0;
        }
      } else {
        options.position = this.getViewPosition();
      }
      if (options.scale != null) {
        // Coerce and verify that the scale is valid.
        options.scale = +options.scale;
        if (!(options.scale > 0)) {
          throw new TypeError('The option "scale" has to be a number greater than zero.');
        }
      } else {
        options.scale = this.body.view.scale;
      }
      if (options.animation === undefined) {
        options.animation = {
          duration: 0
        };
      }
      if (options.animation === false) {
        options.animation = {
          duration: 0
        };
      }
      if (options.animation === true) {
        options.animation = {};
      }
      if (options.animation.duration === undefined) {
        options.animation.duration = 1000;
      } // default duration
      if (options.animation.easingFunction === undefined) {
        options.animation.easingFunction = "easeInOutQuad";
      } // default easing function

this.animateView(options);
    }

/**
     *
     * @param {object} options  |  options.offset   = {x:number, y:number}   // offset from the center in DOM pixels
     *                          |  options.time     = number                 // animation time in milliseconds
     *                          |  options.scale    = number                 // scale to animate to
     *                          |  options.position = {x:number, y:number}   // position to animate to
     *                          |  options.easingFunction = String           // linear, easeInQuad, easeOutQuad, easeInOutQuad,
     *                                                                       // easeInCubic, easeOutCubic, easeInOutCubic,
     *                                                                       // easeInQuart, easeOutQuart, easeInOutQuart,
     *                                                                       // easeInQuint, easeOutQuint, easeInOutQuint
     */
  }, {
    key: "animateView",
    value: function animateView(options) {
      if (options === undefined) {
        return;
      }
      this.animationEasingFunction = options.animation.easingFunction;
      // release if something focussed on the node
      this.releaseNode();
      if (options.locked === true) {
        this.lockedOnNodeId = options.lockedOnNode;
        this.lockedOnNodeOffset = options.offset;
      }

// forcefully complete the old animation if it was still running
      if (this.easingTime != 0) {
        this._transitionRedraw(true); // by setting easingtime to 1, we finish the animation.
      }

this.sourceScale = this.body.view.scale;
      this.sourceTranslation = this.body.view.translation;
      this.targetScale = options.scale;

// set the scale so the viewCenter is based on the correct zoom level. This is overridden in the transitionRedraw
      // but at least then we'll have the target transition
      this.body.view.scale = this.targetScale;
      var viewCenter = this.canvas.DOMtoCanvas({
        x: 0.5 * this.canvas.frame.canvas.clientWidth,
        y: 0.5 * this.canvas.frame.canvas.clientHeight
      });
      var distanceFromCenter = {
        // offset from view, distance view has to change by these x and y to center the node
        x: viewCenter.x - options.position.x,
        y: viewCenter.y - options.position.y
      };
      this.targetTranslation = {
        x: this.sourceTranslation.x + distanceFromCenter.x * this.targetScale + options.offset.x,
        y: this.sourceTranslation.y + distanceFromCenter.y * this.targetScale + options.offset.y
      };

// if the time is set to 0, don't do an animation
      if (options.animation.duration === 0) {
        if (this.lockedOnNodeId != undefined) {
          var _context3;
          this.viewFunction = _bindInstanceProperty$1(_context3 = this._lockedRedraw).call(_context3, this);
          this.body.emitter.on("initRedraw", this.viewFunction);
        } else {
          this.body.view.scale = this.targetScale;
          this.body.view.translation = this.targetTranslation;
          this.body.emitter.emit("_requestRedraw");
        }
      } else {
        var _context4;
        this.animationSpeed = 1 / (60 * options.animation.duration * 0.001) || 1 / 60; // 60 for 60 seconds, 0.001 for milli's
        this.animationEasingFunction = options.animation.easingFunction;
        this.viewFunction = _bindInstanceProperty$1(_context4 = this._transitionRedraw).call(_context4, this);
        this.body.emitter.on("initRedraw", this.viewFunction);
        this.body.emitter.emit("_startRendering");
      }
    }

/**
     * used to animate smoothly by hijacking the redraw function.
     *
     * @private
     */
  }, {
    key: "_lockedRedraw",
    value: function _lockedRedraw() {
      var nodePosition = {
        x: this.body.nodes[this.lockedOnNodeId].x,
        y: this.body.nodes[this.lockedOnNodeId].y
      };
      var viewCenter = this.canvas.DOMtoCanvas({
        x: 0.5 * this.canvas.frame.canvas.clientWidth,
        y: 0.5 * this.canvas.frame.canvas.clientHeight
      });
      var distanceFromCenter = {
        // offset from view, distance view has to change by these x and y to center the node
        x: viewCenter.x - nodePosition.x,
        y: viewCenter.y - nodePosition.y
      };
      var sourceTranslation = this.body.view.translation;
      var targetTranslation = {
        x: sourceTranslation.x + distanceFromCenter.x * this.body.view.scale + this.lockedOnNodeOffset.x,
        y: sourceTranslation.y + distanceFromCenter.y * this.body.view.scale + this.lockedOnNodeOffset.y
      };
      this.body.view.translation = targetTranslation;
    }

/**
     * Resets state of a locked on Node
     */
  }, {
    key: "releaseNode",
    value: function releaseNode() {
      if (this.lockedOnNodeId !== undefined && this.viewFunction !== undefined) {
        this.body.emitter.off("initRedraw", this.viewFunction);
        this.lockedOnNodeId = undefined;
        this.lockedOnNodeOffset = undefined;
      }
    }

/**
     * @param {boolean} [finished=false]
     * @private
     */
  }, {
    key: "_transitionRedraw",
    value: function _transitionRedraw() {
      var finished = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      this.easingTime += this.animationSpeed;
      this.easingTime = finished === true ? 1.0 : this.easingTime;
      var progress = easingFunctions[this.animationEasingFunction](this.easingTime);
      this.body.view.scale = this.sourceScale + (this.targetScale - this.sourceScale) * progress;
      this.body.view.translation = {
        x: this.sourceTranslation.x + (this.targetTranslation.x - this.sourceTranslation.x) * progress,
        y: this.sourceTranslation.y + (this.targetTranslation.y - this.sourceTranslation.y) * progress
      };

// cleanup
      if (this.easingTime >= 1.0) {
        this.body.emitter.off("initRedraw", this.viewFunction);
        this.easingTime = 0;
        if (this.lockedOnNodeId != undefined) {
          var _context5;
          this.viewFunction = _bindInstanceProperty$1(_context5 = this._lockedRedraw).call(_context5, this);
          this.body.emitter.on("initRedraw", this.viewFunction);
        }
        this.body.emitter.emit("animationFinished");
      }
    }

/**
     *
     * @returns {number}
     */
  }, {
    key: "getScale",
    value: function getScale() {
      return this.body.view.scale;
    }

/**
     *
     * @returns {{x: number, y: number}}
     */
  }, {
    key: "getViewPosition",
    value: function getViewPosition() {
      return this.canvas.DOMtoCanvas({
        x: 0.5 * this.canvas.frame.canvas.clientWidth,
        y: 0.5 * this.canvas.frame.canvas.clientHeight
      });
    }
  }]);
  return View;
}();

/**
 * Created by Alex on 11/6/2014.
 */
function keycharm(options) {
  var preventDefault = options && options.preventDefault || false;

var container = options && options.container || window;

var _exportFunctions = {};
  var _bound = {keydown:{}, keyup:{}};
  var _keys = {};
  var i;

// a - z
  for (i = 97; i <= 122; i++) {_keys[String.fromCharCode(i)] = {code:65 + (i - 97), shift: false};}
  // A - Z
  for (i = 65; i <= 90; i++) {_keys[String.fromCharCode(i)] = {code:i, shift: true};}
  // 0 - 9
  for (i = 0;  i <= 9;   i++) {_keys['' + i] = {code:48 + i, shift: false};}
  // F1 - F12
  for (i = 1;  i <= 12;   i++) {_keys['F' + i] = {code:111 + i, shift: false};}
  // num0 - num9
  for (i = 0;  i <= 9;   i++) {_keys['num' + i] = {code:96 + i, shift: false};}

// numpad misc
  _keys['num*'] = {code:106, shift: false};
  _keys['num+'] = {code:107, shift: false};
  _keys['num-'] = {code:109, shift: false};
  _keys['num/'] = {code:111, shift: false};
  _keys['num.'] = {code:110, shift: false};
  // arrows
  _keys['left']  = {code:37, shift: false};
  _keys['up']    = {code:38, shift: false};
  _keys['right'] = {code:39, shift: false};
  _keys['down']  = {code:40, shift: false};
  // extra keys
  _keys['space'] = {code:32, shift: false};
  _keys['enter'] = {code:13, shift: false};
  _keys['shift'] = {code:16, shift: undefined};
  _keys['esc']   = {code:27, shift: false};
  _keys['backspace'] = {code:8, shift: false};
  _keys['tab']       = {code:9, shift: false};
  _keys['ctrl']      = {code:17, shift: false};
  _keys['alt']       = {code:18, shift: false};
  _keys['delete']    = {code:46, shift: false};
  _keys['pageup']    = {code:33, shift: false};
  _keys['pagedown']  = {code:34, shift: false};
  // symbols
  _keys['=']     = {code:187, shift: false};
  _keys['-']     = {code:189, shift: false};
  _keys[']']     = {code:221, shift: false};
  _keys['[']     = {code:219, shift: false};

var down = function(event) {handleEvent(event,'keydown');};
  var up = function(event) {handleEvent(event,'keyup');};

// handle the actualy bound key with the event
  var handleEvent = function(event,type) {
    if (_bound[type][event.keyCode] !== undefined) {
      var bound = _bound[type][event.keyCode];
      for (var i = 0; i < bound.length; i++) {
        if (bound[i].shift === undefined) {
          bound[i].fn(event);
        }
        else if (bound[i].shift == true && event.shiftKey == true) {
          bound[i].fn(event);
        }
        else if (bound[i].shift == false && event.shiftKey == false) {
          bound[i].fn(event);
        }
      }

if (preventDefault == true) {
        event.preventDefault();
      }
    }
  };

// bind a key to a callback
  _exportFunctions.bind = function(key, callback, type) {
    if (type === undefined) {
      type = 'keydown';
    }
    if (_keys[key] === undefined) {
      throw new Error("unsupported key: " + key);
    }
    if (_bound[type][_keys[key].code] === undefined) {
      _bound[type][_keys[key].code] = [];
    }
    _bound[type][_keys[key].code].push({fn:callback, shift:_keys[key].shift});
  };

// bind all keys to a call back (demo purposes)
  _exportFunctions.bindAll = function(callback, type) {
    if (type === undefined) {
      type = 'keydown';
    }
    for (var key in _keys) {
      if (_keys.hasOwnProperty(key)) {
        _exportFunctions.bind(key,callback,type);
      }
    }
  };

// get the key label from an event
  _exportFunctions.getKey = function(event) {
    for (var key in _keys) {
      if (_keys.hasOwnProperty(key)) {
        if (event.shiftKey == true && _keys[key].shift == true && event.keyCode == _keys[key].code) {
          return key;
        }
        else if (event.shiftKey == false && _keys[key].shift == false && event.keyCode == _keys[key].code) {
          return key;
        }
        else if (event.keyCode == _keys[key].code && key == 'shift') {
          return key;
        }
      }
    }
    return "unknown key, currently not supported";
  };

// unbind either a specific callback from a key or all of them (by leaving callback undefined)
  _exportFunctions.unbind = function(key, callback, type) {
    if (type === undefined) {
      type = 'keydown';
    }
    if (_keys[key] === undefined) {
      throw new Error("unsupported key: " + key);
    }
    if (callback !== undefined) {
      var newBindings = [];
      var bound = _bound[type][_keys[key].code];
      if (bound !== undefined) {
        for (var i = 0; i < bound.length; i++) {
          if (!(bound[i].fn == callback && bound[i].shift == _keys[key].shift)) {
            newBindings.push(_bound[type][_keys[key].code][i]);
          }
        }
      }
      _bound[type][_keys[key].code] = newBindings;
    }
    else {
      _bound[type][_keys[key].code] = [];
    }
  };

// reset all bound variables.
  _exportFunctions.reset = function() {
    _bound = {keydown:{}, keyup:{}};
  };

// unbind all listeners and reset all variables.
  _exportFunctions.destroy = function() {
    _bound = {keydown:{}, keyup:{}};
    container.removeEventListener('keydown', down, true);
    container.removeEventListener('keyup', up, true);
  };

// create listeners.
  container.addEventListener('keydown',down,true);
  container.addEventListener('keyup',up,true);

// return the public functions.
  return _exportFunctions;
}

/**
 * Navigation Handler
 */
var NavigationHandler = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   */
  function NavigationHandler(body, canvas) {
    var _this = this;
    _classCallCheck(this, NavigationHandler);
    this.body = body;
    this.canvas = canvas;
    this.iconsCreated = false;
    this.navigationHammers = [];
    this.boundFunctions = {};
    this.touchTime = 0;
    this.activated = false;
    this.body.emitter.on("activate", function () {
      _this.activated = true;
      _this.configureKeyboardBindings();
    });
    this.body.emitter.on("deactivate", function () {
      _this.activated = false;
      _this.configureKeyboardBindings();
    });
    this.body.emitter.on("destroy", function () {
      if (_this.keycharm !== undefined) {
        _this.keycharm.destroy();
      }
    });
    this.options = {};
  }

/**
   *
   * @param {object} options
   */
  _createClass(NavigationHandler, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        this.options = options;
        this.create();
      }
    }

/**
     * Creates or refreshes navigation and sets key bindings
     */
  }, {
    key: "create",
    value: function create() {
      if (this.options.navigationButtons === true) {
        if (this.iconsCreated === false) {
          this.loadNavigationElements();
        }
      } else if (this.iconsCreated === true) {
        this.cleanNavigation();
      }
      this.configureKeyboardBindings();
    }

/**
     * Cleans up previous navigation items
     */
  }, {
    key: "cleanNavigation",
    value: function cleanNavigation() {
      // clean hammer bindings
      if (this.navigationHammers.length != 0) {
        for (var i = 0; i < this.navigationHammers.length; i++) {
          this.navigationHammers[i].destroy();
        }
        this.navigationHammers = [];
      }

// clean up previous navigation items
      if (this.navigationDOM && this.navigationDOM["wrapper"] && this.navigationDOM["wrapper"].parentNode) {
        this.navigationDOM["wrapper"].parentNode.removeChild(this.navigationDOM["wrapper"]);
      }
      this.iconsCreated = false;
    }

/**
     * Creation of the navigation controls nodes. They are drawn over the rest of the nodes and are not affected by scale and translation
     * they have a triggerFunction which is called on click. If the position of the navigation controls is dependent
     * on this.frame.canvas.clientWidth or this.frame.canvas.clientHeight, we flag horizontalAlignLeft and verticalAlignTop false.
     * This means that the location will be corrected by the _relocateNavigation function on a size change of the canvas.
     *
     * @private
     */
  }, {
    key: "loadNavigationElements",
    value: function loadNavigationElements() {
      var _this2 = this;
      this.cleanNavigation();
      this.navigationDOM = {};
      var navigationDivs = ["up", "down", "left", "right", "zoomIn", "zoomOut", "zoomExtends"];
      var navigationDivActions = ["_moveUp", "_moveDown", "_moveLeft", "_moveRight", "_zoomIn", "_zoomOut", "_fit"];
      this.navigationDOM["wrapper"] = document.createElement("div");
      this.navigationDOM["wrapper"].className = "vis-navigation";
      this.canvas.frame.appendChild(this.navigationDOM["wrapper"]);
      for (var i = 0; i < navigationDivs.length; i++) {
        this.navigationDOM[navigationDivs[i]] = document.createElement("div");
        this.navigationDOM[navigationDivs[i]].className = "vis-button vis-" + navigationDivs[i];
        this.navigationDOM["wrapper"].appendChild(this.navigationDOM[navigationDivs[i]]);
        var hammer = new Hammer(this.navigationDOM[navigationDivs[i]]);
        if (navigationDivActions[i] === "_fit") {
          var _context;
          onTouch(hammer, _bindInstanceProperty$1(_context = this._fit).call(_context, this));
        } else {
          var _context2;
          onTouch(hammer, _bindInstanceProperty$1(_context2 = this.bindToRedraw).call(_context2, this, navigationDivActions[i]));
        }
        this.navigationHammers.push(hammer);
      }

// use a hammer for the release so we do not require the one used in the rest of the network
      // the one the rest uses can be overloaded by the manipulation system.
      var hammerFrame = new Hammer(this.canvas.frame);
      onRelease(hammerFrame, function () {
        _this2._stopMovement();
      });
      this.navigationHammers.push(hammerFrame);
      this.iconsCreated = true;
    }

/**
     *
     * @param {string} action
     */
  }, {
    key: "bindToRedraw",
    value: function bindToRedraw(action) {
      if (this.boundFunctions[action] === undefined) {
        var _context3;
        this.boundFunctions[action] = _bindInstanceProperty$1(_context3 = this[action]).call(_context3, this);
        this.body.emitter.on("initRedraw", this.boundFunctions[action]);
        this.body.emitter.emit("_startRendering");
      }
    }

/**
     *
     * @param {string} action
     */
  }, {
    key: "unbindFromRedraw",
    value: function unbindFromRedraw(action) {
      if (this.boundFunctions[action] !== undefined) {
        this.body.emitter.off("initRedraw", this.boundFunctions[action]);
        this.body.emitter.emit("_stopRendering");
        delete this.boundFunctions[action];
      }
    }

/**
     * this stops all movement induced by the navigation buttons
     *
     * @private
     */
  }, {
    key: "_fit",
    value: function _fit() {
      if (new Date().valueOf() - this.touchTime > 700) {
        // TODO: fix ugly hack to avoid hammer's double fireing of event (because we use release?)
        this.body.emitter.emit("fit", {
          duration: 700
        });
        this.touchTime = new Date().valueOf();
      }
    }

/**
     * this stops all movement induced by the navigation buttons
     *
     * @private
     */
  }, {
    key: "_stopMovement",
    value: function _stopMovement() {
      for (var boundAction in this.boundFunctions) {
        if (Object.prototype.hasOwnProperty.call(this.boundFunctions, boundAction)) {
          this.body.emitter.off("initRedraw", this.boundFunctions[boundAction]);
          this.body.emitter.emit("_stopRendering");
        }
      }
      this.boundFunctions = {};
    }
    /**
     *
     * @private
     */
  }, {
    key: "_moveUp",
    value: function _moveUp() {
      this.body.view.translation.y += this.options.keyboard.speed.y;
    }
    /**
     *
     * @private
     */
  }, {
    key: "_moveDown",
    value: function _moveDown() {
      this.body.view.translation.y -= this.options.keyboard.speed.y;
    }
    /**
     *
     * @private
     */
  }, {
    key: "_moveLeft",
    value: function _moveLeft() {
      this.body.view.translation.x += this.options.keyboard.speed.x;
    }
    /**
     *
     * @private
     */
  }, {
    key: "_moveRight",
    value: function _moveRight() {
      this.body.view.translation.x -= this.options.keyboard.speed.x;
    }
    /**
     *
     * @private
     */
  }, {
    key: "_zoomIn",
    value: function _zoomIn() {
      var scaleOld = this.body.view.scale;
      var scale = this.body.view.scale * (1 + this.options.keyboard.speed.zoom);
      var translation = this.body.view.translation;
      var scaleFrac = scale / scaleOld;
      var tx = (1 - scaleFrac) * this.canvas.canvasViewCenter.x + translation.x * scaleFrac;
      var ty = (1 - scaleFrac) * this.canvas.canvasViewCenter.y + translation.y * scaleFrac;
      this.body.view.scale = scale;
      this.body.view.translation = {
        x: tx,
        y: ty
      };
      this.body.emitter.emit("zoom", {
        direction: "+",
        scale: this.body.view.scale,
        pointer: null
      });
    }

/**
     *
     * @private
     */
  }, {
    key: "_zoomOut",
    value: function _zoomOut() {
      var scaleOld = this.body.view.scale;
      var scale = this.body.view.scale / (1 + this.options.keyboard.speed.zoom);
      var translation = this.body.view.translation;
      var scaleFrac = scale / scaleOld;
      var tx = (1 - scaleFrac) * this.canvas.canvasViewCenter.x + translation.x * scaleFrac;
      var ty = (1 - scaleFrac) * this.canvas.canvasViewCenter.y + translation.y * scaleFrac;
      this.body.view.scale = scale;
      this.body.view.translation = {
        x: tx,
        y: ty
      };
      this.body.emitter.emit("zoom", {
        direction: "-",
        scale: this.body.view.scale,
        pointer: null
      });
    }

/**
     * bind all keys using keycharm.
     */
  }, {
    key: "configureKeyboardBindings",
    value: function configureKeyboardBindings() {
      var _this3 = this;
      if (this.keycharm !== undefined) {
        this.keycharm.destroy();
      }
      if (this.options.keyboard.enabled === true) {
        if (this.options.keyboard.bindToWindow === true) {
          this.keycharm = keycharm({
            container: window,
            preventDefault: true
          });
        } else {
          this.keycharm = keycharm({
            container: this.canvas.frame,
            preventDefault: true
          });
        }
        this.keycharm.reset();
        if (this.activated === true) {
          var _context4, _context5, _context6, _context7, _context8, _context9, _context10, _context11, _context12, _context13, _context14, _context15, _context16, _context17, _context18, _context19, _context20, _context21, _context22, _context23, _context24, _context25, _context26, _context27;
          _bindInstanceProperty$1(_context4 = this.keycharm).call(_context4, "up", function () {
            _this3.bindToRedraw("_moveUp");
          }, "keydown");
          _bindInstanceProperty$1(_context5 = this.keycharm).call(_context5, "down", function () {
            _this3.bindToRedraw("_moveDown");
          }, "keydown");
          _bindInstanceProperty$1(_context6 = this.keycharm).call(_context6, "left", function () {
            _this3.bindToRedraw("_moveLeft");
          }, "keydown");
          _bindInstanceProperty$1(_context7 = this.keycharm).call(_context7, "right", function () {
            _this3.bindToRedraw("_moveRight");
          }, "keydown");
          _bindInstanceProperty$1(_context8 = this.keycharm).call(_context8, "=", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          _bindInstanceProperty$1(_context9 = this.keycharm).call(_context9, "num+", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          _bindInstanceProperty$1(_context10 = this.keycharm).call(_context10, "num-", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          _bindInstanceProperty$1(_context11 = this.keycharm).call(_context11, "-", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          _bindInstanceProperty$1(_context12 = this.keycharm).call(_context12, "[", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          _bindInstanceProperty$1(_context13 = this.keycharm).call(_context13, "]", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          _bindInstanceProperty$1(_context14 = this.keycharm).call(_context14, "pageup", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          _bindInstanceProperty$1(_context15 = this.keycharm).call(_context15, "pagedown", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          _bindInstanceProperty$1(_context16 = this.keycharm).call(_context16, "up", function () {
            _this3.unbindFromRedraw("_moveUp");
          }, "keyup");
          _bindInstanceProperty$1(_context17 = this.keycharm).call(_context17, "down", function () {
            _this3.unbindFromRedraw("_moveDown");
          }, "keyup");
          _bindInstanceProperty$1(_context18 = this.keycharm).call(_context18, "left", function () {
            _this3.unbindFromRedraw("_moveLeft");
          }, "keyup");
          _bindInstanceProperty$1(_context19 = this.keycharm).call(_context19, "right", function () {
            _this3.unbindFromRedraw("_moveRight");
          }, "keyup");
          _bindInstanceProperty$1(_context20 = this.keycharm).call(_context20, "=", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          _bindInstanceProperty$1(_context21 = this.keycharm).call(_context21, "num+", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          _bindInstanceProperty$1(_context22 = this.keycharm).call(_context22, "num-", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          _bindInstanceProperty$1(_context23 = this.keycharm).call(_context23, "-", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          _bindInstanceProperty$1(_context24 = this.keycharm).call(_context24, "[", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          _bindInstanceProperty$1(_context25 = this.keycharm).call(_context25, "]", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          _bindInstanceProperty$1(_context26 = this.keycharm).call(_context26, "pageup", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          _bindInstanceProperty$1(_context27 = this.keycharm).call(_context27, "pagedown", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
        }
      }
    }
  }]);
  return NavigationHandler;
}();

/**
 * Handler for interactions
 */
var InteractionHandler = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   * @param {SelectionHandler} selectionHandler
   */
  function InteractionHandler(body, canvas, selectionHandler) {
    var _context, _context2, _context3, _context4, _context5, _context6, _context7, _context8, _context9, _context10, _context11, _context12, _context13;
    _classCallCheck(this, InteractionHandler);
    this.body = body;
    this.canvas = canvas;
    this.selectionHandler = selectionHandler;
    this.navigationHandler = new NavigationHandler(body, canvas);

// bind the events from hammer to functions in this object
    this.body.eventListeners.onTap = _bindInstanceProperty$1(_context = this.onTap).call(_context, this);
    this.body.eventListeners.onTouch = _bindInstanceProperty$1(_context2 = this.onTouch).call(_context2, this);
    this.body.eventListeners.onDoubleTap = _bindInstanceProperty$1(_context3 = this.onDoubleTap).call(_context3, this);
    this.body.eventListeners.onHold = _bindInstanceProperty$1(_context4 = this.onHold).call(_context4, this);
    this.body.eventListeners.onDragStart = _bindInstanceProperty$1(_context5 = this.onDragStart).call(_context5, this);
    this.body.eventListeners.onDrag = _bindInstanceProperty$1(_context6 = this.onDrag).call(_context6, this);
    this.body.eventListeners.onDragEnd = _bindInstanceProperty$1(_context7 = this.onDragEnd).call(_context7, this);
    this.body.eventListeners.onMouseWheel = _bindInstanceProperty$1(_context8 = this.onMouseWheel).call(_context8, this);
    this.body.eventListeners.onPinch = _bindInstanceProperty$1(_context9 = this.onPinch).call(_context9, this);
    this.body.eventListeners.onMouseMove = _bindInstanceProperty$1(_context10 = this.onMouseMove).call(_context10, this);
    this.body.eventListeners.onRelease = _bindInstanceProperty$1(_context11 = this.onRelease).call(_context11, this);
    this.body.eventListeners.onContext = _bindInstanceProperty$1(_context12 = this.onContext).call(_context12, this);
    this.touchTime = 0;
    this.drag = {};
    this.pinch = {};
    this.popup = undefined;
    this.popupObj = undefined;
    this.popupTimer = undefined;
    this.body.functions.getPointer = _bindInstanceProperty$1(_context13 = this.getPointer).call(_context13, this);
    this.options = {};
    this.defaultOptions = {
      dragNodes: true,
      dragView: true,
      hover: false,
      keyboard: {
        enabled: false,
        speed: {
          x: 10,
          y: 10,
          zoom: 0.02
        },
        bindToWindow: true,
        autoFocus: true
      },
      navigationButtons: false,
      tooltipDelay: 300,
      zoomView: true,
      zoomSpeed: 1
    };
    _Object$assign(this.options, this.defaultOptions);
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(InteractionHandler, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this = this;
      this.body.emitter.on("destroy", function () {
        clearTimeout(_this.popupTimer);
        delete _this.body.functions.getPointer;
      });
    }

/**
     *
     * @param {object} options
     */
  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        // extend all but the values in fields
        var fields = ["hideEdgesOnDrag", "hideEdgesOnZoom", "hideNodesOnDrag", "keyboard", "multiselect", "selectable", "selectConnectedEdges"];
        selectiveNotDeepExtend(fields, this.options, options);

// merge the keyboard options in.
        mergeOptions(this.options, options, "keyboard");
        if (options.tooltip) {
          _Object$assign(this.options.tooltip, options.tooltip);
          if (options.tooltip.color) {
            this.options.tooltip.color = parseColor(options.tooltip.color);
          }
        }
      }
      this.navigationHandler.setOptions(this.options);
    }

/**
     * Get the pointer location from a touch location
     *
     * @param {{x: number, y: number}} touch
     * @returns {{x: number, y: number}} pointer
     * @private
     */
  }, {
    key: "getPointer",
    value: function getPointer(touch) {
      return {
        x: touch.x - getAbsoluteLeft(this.canvas.frame.canvas),
        y: touch.y - getAbsoluteTop(this.canvas.frame.canvas)
      };
    }

/**
     * On start of a touch gesture, store the pointer
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "onTouch",
    value: function onTouch(event) {
      if (new Date().valueOf() - this.touchTime > 50) {
        this.drag.pointer = this.getPointer(event.center);
        this.drag.pinched = false;
        this.pinch.scale = this.body.view.scale;
        // to avoid double fireing of this event because we have two hammer instances. (on canvas and on frame)
        this.touchTime = new Date().valueOf();
      }
    }

/**
     * handle tap/click event: select/unselect a node
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onTap",
    value: function onTap(event) {
      var pointer = this.getPointer(event.center);
      var multiselect = this.selectionHandler.options.multiselect && (event.changedPointers[0].ctrlKey || event.changedPointers[0].metaKey);
      this.checkSelectionChanges(pointer, multiselect);
      this.selectionHandler.commitAndEmit(pointer, event);
      this.selectionHandler.generateClickEvent("click", event, pointer);
    }

/**
     * handle doubletap event
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onDoubleTap",
    value: function onDoubleTap(event) {
      var pointer = this.getPointer(event.center);
      this.selectionHandler.generateClickEvent("doubleClick", event, pointer);
    }

/**
     * handle long tap event: multi select nodes
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onHold",
    value: function onHold(event) {
      var pointer = this.getPointer(event.center);
      var multiselect = this.selectionHandler.options.multiselect;
      this.checkSelectionChanges(pointer, multiselect);
      this.selectionHandler.commitAndEmit(pointer, event);
      this.selectionHandler.generateClickEvent("click", event, pointer);
      this.selectionHandler.generateClickEvent("hold", event, pointer);
    }

/**
     * handle the release of the screen
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onRelease",
    value: function onRelease(event) {
      if (new Date().valueOf() - this.touchTime > 10) {
        var pointer = this.getPointer(event.center);
        this.selectionHandler.generateClickEvent("release", event, pointer);
        // to avoid double fireing of this event because we have two hammer instances. (on canvas and on frame)
        this.touchTime = new Date().valueOf();
      }
    }

/**
     *
     * @param {Event} event
     */
  }, {
    key: "onContext",
    value: function onContext(event) {
      var pointer = this.getPointer({
        x: event.clientX,
        y: event.clientY
      });
      this.selectionHandler.generateClickEvent("oncontext", event, pointer);
    }

/**
     * Select and deselect nodes depending current selection change.
     *
     * @param {{x: number, y: number}} pointer
     * @param {boolean} [add=false]
     */
  }, {
    key: "checkSelectionChanges",
    value: function checkSelectionChanges(pointer) {
      var add = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      if (add === true) {
        this.selectionHandler.selectAdditionalOnPoint(pointer);
      } else {
        this.selectionHandler.selectOnPoint(pointer);
      }
    }

/**
     * Remove all node and edge id's from the first set that are present in the second one.
     *
     * @param {{nodes: Array.<Node>, edges: Array.<vis.Edge>}} firstSet
     * @param {{nodes: Array.<Node>, edges: Array.<vis.Edge>}} secondSet
     * @returns {{nodes: Array.<Node>, edges: Array.<vis.Edge>}}
     * @private
     */
  }, {
    key: "_determineDifference",
    value: function _determineDifference(firstSet, secondSet) {
      var arrayDiff = function arrayDiff(firstArr, secondArr) {
        var result = [];
        for (var i = 0; i < firstArr.length; i++) {
          var value = firstArr[i];
          if (_indexOfInstanceProperty(secondArr).call(secondArr, value) === -1) {
            result.push(value);
          }
        }
        return result;
      };
      return {
        nodes: arrayDiff(firstSet.nodes, secondSet.nodes),
        edges: arrayDiff(firstSet.edges, secondSet.edges)
      };
    }

/**
     * This function is called by onDragStart.
     * It is separated out because we can then overload it for the datamanipulation system.
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onDragStart",
    value: function onDragStart(event) {
      // if already dragging, do not start
      // this can happen on touch screens with multiple fingers
      if (this.drag.dragging) {
        return;
      }

//in case the touch event was triggered on an external div, do the initial touch now.
      if (this.drag.pointer === undefined) {
        this.onTouch(event);
      }

// note: drag.pointer is set in onTouch to get the initial touch location
      var node = this.selectionHandler.getNodeAt(this.drag.pointer);
      this.drag.dragging = true;
      this.drag.selection = [];
      this.drag.translation = _Object$assign({}, this.body.view.translation); // copy the object
      this.drag.nodeId = undefined;
      if (event.srcEvent.shiftKey) {
        this.body.selectionBox.show = true;
        var pointer = this.getPointer(event.center);
        this.body.selectionBox.position.start = {
          x: this.canvas._XconvertDOMtoCanvas(pointer.x),
          y: this.canvas._YconvertDOMtoCanvas(pointer.y)
        };
        this.body.selectionBox.position.end = {
          x: this.canvas._XconvertDOMtoCanvas(pointer.x),
          y: this.canvas._YconvertDOMtoCanvas(pointer.y)
        };
      } else if (node !== undefined && this.options.dragNodes === true) {
        this.drag.nodeId = node.id;
        // select the clicked node if not yet selected
        if (node.isSelected() === false) {
          this.selectionHandler.setSelection({
            nodes: [node.id]
          });
        }

// after select to contain the node
        this.selectionHandler.generateClickEvent("dragStart", event, this.drag.pointer);

// create an array with the selected nodes and their original location and status
        var _iterator = _createForOfIteratorHelper$4(this.selectionHandler.getSelectedNodes()),
          _step;
        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var _node = _step.value;
            var s = {
              id: _node.id,
              node: _node,
              // store original x, y, xFixed and yFixed, make the node temporarily Fixed
              x: _node.x,
              y: _node.y,
              xFixed: _node.options.fixed.x,
              yFixed: _node.options.fixed.y
            };
            _node.options.fixed.x = true;
            _node.options.fixed.y = true;
            this.drag.selection.push(s);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      } else {
        // fallback if no node is selected and thus the view is dragged.
        this.selectionHandler.generateClickEvent("dragStart", event, this.drag.pointer, undefined, true);
      }
    }

/**
     * handle drag event
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onDrag",
    value: function onDrag(event) {
      var _this2 = this;
      if (this.drag.pinched === true) {
        return;
      }

// remove the focus on node if it is focussed on by the focusOnNode
      this.body.emitter.emit("unlockNode");
      var pointer = this.getPointer(event.center);
      var selection = this.drag.selection;
      if (selection && selection.length && this.options.dragNodes === true) {
        this.selectionHandler.generateClickEvent("dragging", event, pointer);

// calculate delta's and new location
        var deltaX = pointer.x - this.drag.pointer.x;
        var deltaY = pointer.y - this.drag.pointer.y;

// update position of all selected nodes
        _forEachInstanceProperty(selection).call(selection, function (selection) {
          var node = selection.node;
          // only move the node if it was not fixed initially
          if (selection.xFixed === false) {
            node.x = _this2.canvas._XconvertDOMtoCanvas(_this2.canvas._XconvertCanvasToDOM(selection.x) + deltaX);
          }
          // only move the node if it was not fixed initially
          if (selection.yFixed === false) {
            node.y = _this2.canvas._YconvertDOMtoCanvas(_this2.canvas._YconvertCanvasToDOM(selection.y) + deltaY);
          }
        });

// start the simulation of the physics
        this.body.emitter.emit("startSimulation");
      } else {
        // create selection box
        if (event.srcEvent.shiftKey) {
          this.selectionHandler.generateClickEvent("dragging", event, pointer, undefined, true);

// if the drag was not started properly because the click started outside the network div, start it now.
          if (this.drag.pointer === undefined) {
            this.onDragStart(event);
            return;
          }
          this.body.selectionBox.position.end = {
            x: this.canvas._XconvertDOMtoCanvas(pointer.x),
            y: this.canvas._YconvertDOMtoCanvas(pointer.y)
          };
          this.body.emitter.emit("_requestRedraw");
        }

// move the network
        if (this.options.dragView === true && !event.srcEvent.shiftKey) {
          this.selectionHandler.generateClickEvent("dragging", event, pointer, undefined, true);

// if the drag was not started properly because the click started outside the network div, start it now.
          if (this.drag.pointer === undefined) {
            this.onDragStart(event);
            return;
          }
          var diffX = pointer.x - this.drag.pointer.x;
          var diffY = pointer.y - this.drag.pointer.y;
          this.body.view.translation = {
            x: this.drag.translation.x + diffX,
            y: this.drag.translation.y + diffY
          };
          this.body.emitter.emit("_requestRedraw");
        }
      }
    }

/**
     * handle drag start event
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "onDragEnd",
    value: function onDragEnd(event) {
      var _this3 = this;
      this.drag.dragging = false;
      if (this.body.selectionBox.show) {
        var _context14;
        this.body.selectionBox.show = false;
        var selectionBoxPosition = this.body.selectionBox.position;
        var selectionBoxPositionMinMax = {
          minX: Math.min(selectionBoxPosition.start.x, selectionBoxPosition.end.x),
          minY: Math.min(selectionBoxPosition.start.y, selectionBoxPosition.end.y),
          maxX: Math.max(selectionBoxPosition.start.x, selectionBoxPosition.end.x),
          maxY: Math.max(selectionBoxPosition.start.y, selectionBoxPosition.end.y)
        };
        var toBeSelectedNodes = _filterInstanceProperty(_context14 = this.body.nodeIndices).call(_context14, function (nodeId) {
          var node = _this3.body.nodes[nodeId];
          return node.x >= selectionBoxPositionMinMax.minX && node.x <= selectionBoxPositionMinMax.maxX && node.y >= selectionBoxPositionMinMax.minY && node.y <= selectionBoxPositionMinMax.maxY;
        });
        _forEachInstanceProperty(toBeSelectedNodes).call(toBeSelectedNodes, function (nodeId) {
          return _this3.selectionHandler.selectObject(_this3.body.nodes[nodeId]);
        });
        var pointer = this.getPointer(event.center);
        this.selectionHandler.commitAndEmit(pointer, event);
        this.selectionHandler.generateClickEvent("dragEnd", event, this.getPointer(event.center), undefined, true);
        this.body.emitter.emit("_requestRedraw");
      } else {
        var selection = this.drag.selection;
        if (selection && selection.length) {
          _forEachInstanceProperty(selection).call(selection, function (s) {
            // restore original xFixed and yFixed
            s.node.options.fixed.x = s.xFixed;
            s.node.options.fixed.y = s.yFixed;
          });
          this.selectionHandler.generateClickEvent("dragEnd", event, this.getPointer(event.center));
          this.body.emitter.emit("startSimulation");
        } else {
          this.selectionHandler.generateClickEvent("dragEnd", event, this.getPointer(event.center), undefined, true);
          this.body.emitter.emit("_requestRedraw");
        }
      }
    }

/**
     * Handle pinch event
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "onPinch",
    value: function onPinch(event) {
      var pointer = this.getPointer(event.center);
      this.drag.pinched = true;
      if (this.pinch["scale"] === undefined) {
        this.pinch.scale = 1;
      }

// TODO: enabled moving while pinching?
      var scale = this.pinch.scale * event.scale;
      this.zoom(scale, pointer);
    }

/**
     * Zoom the network in or out
     *
     * @param {number} scale a number around 1, and between 0.01 and 10
     * @param {{x: number, y: number}} pointer    Position on screen
     * @private
     */
  }, {
    key: "zoom",
    value: function zoom(scale, pointer) {
      if (this.options.zoomView === true) {
        var scaleOld = this.body.view.scale;
        if (scale < 0.00001) {
          scale = 0.00001;
        }
        if (scale > 10) {
          scale = 10;
        }
        var preScaleDragPointer = undefined;
        if (this.drag !== undefined) {
          if (this.drag.dragging === true) {
            preScaleDragPointer = this.canvas.DOMtoCanvas(this.drag.pointer);
          }
        }
        // + this.canvas.frame.canvas.clientHeight / 2
        var translation = this.body.view.translation;
        var scaleFrac = scale / scaleOld;
        var tx = (1 - scaleFrac) * pointer.x + translation.x * scaleFrac;
        var ty = (1 - scaleFrac) * pointer.y + translation.y * scaleFrac;
        this.body.view.scale = scale;
        this.body.view.translation = {
          x: tx,
          y: ty
        };
        if (preScaleDragPointer != undefined) {
          var postScaleDragPointer = this.canvas.canvasToDOM(preScaleDragPointer);
          this.drag.pointer.x = postScaleDragPointer.x;
          this.drag.pointer.y = postScaleDragPointer.y;
        }
        this.body.emitter.emit("_requestRedraw");
        if (scaleOld < scale) {
          this.body.emitter.emit("zoom", {
            direction: "+",
            scale: this.body.view.scale,
            pointer: pointer
          });
        } else {
          this.body.emitter.emit("zoom", {
            direction: "-",
            scale: this.body.view.scale,
            pointer: pointer
          });
        }
      }
    }

/**
     * Event handler for mouse wheel event, used to zoom the timeline
     * See http://adomas.org/javascript-mouse-wheel/
     *     https://github.com/EightMedia/hammer.js/issues/256
     *
     * @param {MouseEvent}  event
     * @private
     */
  }, {
    key: "onMouseWheel",
    value: function onMouseWheel(event) {
      if (this.options.zoomView === true) {
        // If delta is nonzero, handle it.
        // Basically, delta is now positive if wheel was scrolled up,
        // and negative, if wheel was scrolled down.
        if (event.deltaY !== 0) {
          // calculate the new scale
          var scale = this.body.view.scale;
          scale *= 1 + (event.deltaY < 0 ? 1 : -1) * (this.options.zoomSpeed * 0.1);

// calculate the pointer location
          var pointer = this.getPointer({
            x: event.clientX,
            y: event.clientY
          });

// apply the new scale
          this.zoom(scale, pointer);
        }

// Prevent default actions caused by mouse wheel.
        event.preventDefault();
      }
    }

/**
     * Mouse move handler for checking whether the title moves over a node with a title.
     *
     * @param  {Event} event
     * @private
     */
  }, {
    key: "onMouseMove",
    value: function onMouseMove(event) {
      var _this4 = this;
      var pointer = this.getPointer({
        x: event.clientX,
        y: event.clientY
      });
      var popupVisible = false;

// check if the previously selected node is still selected
      if (this.popup !== undefined) {
        if (this.popup.hidden === false) {
          this._checkHidePopup(pointer);
        }

// if the popup was not hidden above
        if (this.popup.hidden === false) {
          popupVisible = true;
          this.popup.setPosition(pointer.x + 3, pointer.y - 5);
          this.popup.show();
        }
      }

// if we bind the keyboard to the div, we have to highlight it to use it. This highlights it on mouse over.
      if (this.options.keyboard.autoFocus && this.options.keyboard.bindToWindow === false && this.options.keyboard.enabled === true) {
        this.canvas.frame.focus();
      }

// start a timeout that will check if the mouse is positioned above an element
      if (popupVisible === false) {
        if (this.popupTimer !== undefined) {
          clearInterval(this.popupTimer); // stop any running calculationTimer
          this.popupTimer = undefined;
        }
        if (!this.drag.dragging) {
          this.popupTimer = _setTimeout(function () {
            return _this4._checkShowPopup(pointer);
          }, this.options.tooltipDelay);
        }
      }

// adding hover highlights
      if (this.options.hover === true) {
        this.selectionHandler.hoverObject(event, pointer);
      }
    }

/**
     * Check if there is an element on the given position in the network
     * (a node or edge). If so, and if this element has a title,
     * show a popup window with its title.
     *
     * @param {{x:number, y:number}} pointer
     * @private
     */
  }, {
    key: "_checkShowPopup",
    value: function _checkShowPopup(pointer) {
      var x = this.canvas._XconvertDOMtoCanvas(pointer.x);
      var y = this.canvas._YconvertDOMtoCanvas(pointer.y);
      var pointerObj = {
        left: x,
        top: y,
        right: x,
        bottom: y
      };
      var previousPopupObjId = this.popupObj === undefined ? undefined : this.popupObj.id;
      var nodeUnderCursor = false;
      var popupType = "node";

// check if a node is under the cursor.
      if (this.popupObj === undefined) {
        // search the nodes for overlap, select the top one in case of multiple nodes
        var nodeIndices = this.body.nodeIndices;
        var nodes = this.body.nodes;
        var node;
        var overlappingNodes = [];
        for (var i = 0; i < nodeIndices.length; i++) {
          node = nodes[nodeIndices[i]];
          if (node.isOverlappingWith(pointerObj) === true) {
            nodeUnderCursor = true;
            if (node.getTitle() !== undefined) {
              overlappingNodes.push(nodeIndices[i]);
            }
          }
        }
        if (overlappingNodes.length > 0) {
          // if there are overlapping nodes, select the last one, this is the one which is drawn on top of the others
          this.popupObj = nodes[overlappingNodes[overlappingNodes.length - 1]];
          // if you hover over a node, the title of the edge is not supposed to be shown.
          nodeUnderCursor = true;
        }
      }
      if (this.popupObj === undefined && nodeUnderCursor === false) {
        // search the edges for overlap
        var edgeIndices = this.body.edgeIndices;
        var edges = this.body.edges;
        var edge;
        var overlappingEdges = [];
        for (var _i = 0; _i < edgeIndices.length; _i++) {
          edge = edges[edgeIndices[_i]];
          if (edge.isOverlappingWith(pointerObj) === true) {
            if (edge.connected === true && edge.getTitle() !== undefined) {
              overlappingEdges.push(edgeIndices[_i]);
            }
          }
        }
        if (overlappingEdges.length > 0) {
          this.popupObj = edges[overlappingEdges[overlappingEdges.length - 1]];
          popupType = "edge";
        }
      }
      if (this.popupObj !== undefined) {
        // show popup message window
        if (this.popupObj.id !== previousPopupObjId) {
          if (this.popup === undefined) {
            this.popup = new Popup(this.canvas.frame);
          }
          this.popup.popupTargetType = popupType;
          this.popup.popupTargetId = this.popupObj.id;

// adjust a small offset such that the mouse cursor is located in the
          // bottom left location of the popup, and you can easily move over the
          // popup area
          this.popup.setPosition(pointer.x + 3, pointer.y - 5);
          this.popup.setText(this.popupObj.getTitle());
          this.popup.show();
          this.body.emitter.emit("showPopup", this.popupObj.id);
        }
      } else {
        if (this.popup !== undefined) {
          this.popup.hide();
          this.body.emitter.emit("hidePopup");
        }
      }
    }

/**
     * Check if the popup must be hidden, which is the case when the mouse is no
     * longer hovering on the object
     *
     * @param {{x:number, y:number}} pointer
     * @private
     */
  }, {
    key: "_checkHidePopup",
    value: function _checkHidePopup(pointer) {
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      var stillOnObj = false;
      if (this.popup.popupTargetType === "node") {
        if (this.body.nodes[this.popup.popupTargetId] !== undefined) {
          stillOnObj = this.body.nodes[this.popup.popupTargetId].isOverlappingWith(pointerObj);

// if the mouse is still one the node, we have to check if it is not also on one that is drawn on top of it.
          // we initially only check stillOnObj because this is much faster.
          if (stillOnObj === true) {
            var overNode = this.selectionHandler.getNodeAt(pointer);
            stillOnObj = overNode === undefined ? false : overNode.id === this.popup.popupTargetId;
          }
        }
      } else {
        if (this.selectionHandler.getNodeAt(pointer) === undefined) {
          if (this.body.edges[this.popup.popupTargetId] !== undefined) {
            stillOnObj = this.body.edges[this.popup.popupTargetId].isOverlappingWith(pointerObj);
          }
        }
      }
      if (stillOnObj === false) {
        this.popupObj = undefined;
        this.popup.hide();
        this.body.emitter.emit("hidePopup");
      }
    }
  }]);
  return InteractionHandler;
}();

var setExports = {};
var set$2 = {
  get exports(){ return setExports; },
  set exports(v){ setExports = v; },
};

var collection$1 = collection$3;
var collectionStrong = collectionStrong$2;

// `Set` constructor
// https://tc39.es/ecma262/#sec-set-objects
collection$1('Set', function (init) {
  return function Set() { return init(this, arguments.length ? arguments[0] : undefined); };
}, collectionStrong);

var path$1 = path$y;

var set$1 = path$1.Set;

var parent$4 = set$1;

var set$4 = parent$4;

(function (module) {
	module.exports = set$4;
} (set$2));

var _Set = /*@__PURE__*/getDefaultExportFromCjs$1(setExports);

var weakMapExports = {};
var weakMap$2 = {
  get exports(){ return weakMapExports; },
  set exports(v){ weakMapExports = v; },
};

var uncurryThis$2 = functionUncurryThis;
var defineBuiltIns$1 = defineBuiltIns$3;
var getWeakData = internalMetadataExports.getWeakData;
var anInstance = anInstance$3;
var anObject = anObject$d;
var isNullOrUndefined = isNullOrUndefined$5;
var isObject$1$1 = isObject$j;
var iterate = iterate$3;
var ArrayIterationModule = arrayIteration;
var hasOwn$i = hasOwnProperty_1;
var InternalStateModule = internalState;

var setInternalState = InternalStateModule.set;
var internalStateGetterFor = InternalStateModule.getterFor;
var find = ArrayIterationModule.find;
var findIndex = ArrayIterationModule.findIndex;
var splice = uncurryThis$2([].splice);
var id = 0;

// fallback for uncaught frozen keys
var uncaughtFrozenStore = function (state) {
  return state.frozen || (state.frozen = new UncaughtFrozenStore());
};

var UncaughtFrozenStore = function () {
  this.entries = [];
};

var findUncaughtFrozen = function (store, key) {
  return find(store.entries, function (it) {
    return it[0] === key;
  });
};

UncaughtFrozenStore.prototype = {
  get: function (key) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) return entry[1];
  },
  has: function (key) {
    return !!findUncaughtFrozen(this, key);
  },
  set: function (key, value) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) entry[1] = value;
    else this.entries.push([key, value]);
  },
  'delete': function (key) {
    var index = findIndex(this.entries, function (it) {
      return it[0] === key;
    });
    if (~index) splice(this.entries, index, 1);
    return !!~index;
  }
};

var Prototype = Constructor.prototype;

var getInternalState = internalStateGetterFor(CONSTRUCTOR_NAME);

var define = function (that, key, value) {
      var state = getInternalState(that);
      var data = getWeakData(anObject(key), true);
      if (data === true) uncaughtFrozenStore(state).set(key, value);
      else data[state.id] = value;
      return that;
    };

defineBuiltIns$1(Prototype, {
      // `{ WeakMap, WeakSet }.prototype.delete(key)` methods
      // https://tc39.es/ecma262/#sec-weakmap.prototype.delete
      // https://tc39.es/ecma262/#sec-weakset.prototype.delete
      'delete': function (key) {
        var state = getInternalState(this);
        if (!isObject$1$1(key)) return false;
        var data = getWeakData(key);
        if (data === true) return uncaughtFrozenStore(state)['delete'](key);
        return data && hasOwn$i(data, state.id) && delete data[state.id];
      },
      // `{ WeakMap, WeakSet }.prototype.has(key)` methods
      // https://tc39.es/ecma262/#sec-weakmap.prototype.has
      // https://tc39.es/ecma262/#sec-weakset.prototype.has
      has: function has(key) {
        var state = getInternalState(this);
        if (!isObject$1$1(key)) return false;
        var data = getWeakData(key);
        if (data === true) return uncaughtFrozenStore(state).has(key);
        return data && hasOwn$i(data, state.id);
      }
    });

defineBuiltIns$1(Prototype, IS_MAP ? {
      // `WeakMap.prototype.get(key)` method
      // https://tc39.es/ecma262/#sec-weakmap.prototype.get
      get: function get(key) {
        var state = getInternalState(this);
        if (isObject$1$1(key)) {
          var data = getWeakData(key);
          if (data === true) return uncaughtFrozenStore(state).get(key);
          return data ? data[state.id] : undefined;
        }
      },
      // `WeakMap.prototype.set(key, value)` method
      // https://tc39.es/ecma262/#sec-weakmap.prototype.set
      set: function set(key, value) {
        return define(this, key, value);
      }
    } : {
      // `WeakSet.prototype.add(value)` method
      // https://tc39.es/ecma262/#sec-weakset.prototype.add
      add: function add(value) {
        return define(this, value, true);
      }
    });

return Constructor;
  }
};

var FREEZING = freezing;
var global$1 = global$l;
var uncurryThis$1 = functionUncurryThis;
var defineBuiltIns = defineBuiltIns$3;
var InternalMetadataModule = internalMetadataExports;
var collection = collection$3;
var collectionWeak = collectionWeak$1;
var isObject$k = isObject$j;
var enforceInternalState = internalState.enforce;
var fails$1 = fails$w;
var NATIVE_WEAK_MAP = weakMapBasicDetection;

var $Object = Object;
// eslint-disable-next-line es/no-array-isarray -- safe
var isArray$g = Array.isArray;
// eslint-disable-next-line es/no-object-isextensible -- safe
var isExtensible = $Object.isExtensible;
// eslint-disable-next-line es/no-object-isfrozen -- safe
var isFrozen = $Object.isFrozen;
// eslint-disable-next-line es/no-object-issealed -- safe
var isSealed = $Object.isSealed;
// eslint-disable-next-line es/no-object-freeze -- safe
var freeze = $Object.freeze;
// eslint-disable-next-line es/no-object-seal -- safe
var seal = $Object.seal;

var FROZEN = {};
var SEALED = {};
var IS_IE11 = !global$1.ActiveXObject && 'ActiveXObject' in global$1;
var InternalWeakMap;

var wrapper = function (init) {
  return function WeakMap() {
    return init(this, arguments.length ? arguments[0] : undefined);
  };
};

// `WeakMap` constructor
// https://tc39.es/ecma262/#sec-weakmap-constructor
var $WeakMap = collection('WeakMap', wrapper, collectionWeak);
var WeakMapPrototype = $WeakMap.prototype;
var nativeSet = uncurryThis$1(WeakMapPrototype.set);

// Chakra Edge bug: adding frozen arrays to WeakMap unfreeze them
var hasMSEdgeFreezingBug = function () {
  return FREEZING && fails$1(function () {
    var frozenArray = freeze([]);
    nativeSet(new $WeakMap(), frozenArray, 1);
    return !isFrozen(frozenArray);
  });
};

// IE11 WeakMap frozen keys fix
// We can't use feature detection because it crash some old IE builds
// https://github.com/zloirock/core-js/issues/485
if (NATIVE_WEAK_MAP) if (IS_IE11) {
  InternalWeakMap = collectionWeak.getConstructor(wrapper, 'WeakMap', true);
  InternalMetadataModule.enable();
  var nativeDelete = uncurryThis$1(WeakMapPrototype['delete']);
  var nativeHas = uncurryThis$1(WeakMapPrototype.has);
  var nativeGet = uncurryThis$1(WeakMapPrototype.get);
  defineBuiltIns(WeakMapPrototype, {
    'delete': function (key) {
      if (isObject$k(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeDelete(this, key) || state.frozen['delete'](key);
      } return nativeDelete(this, key);
    },
    has: function has(key) {
      if (isObject$k(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeHas(this, key) || state.frozen.has(key);
      } return nativeHas(this, key);
    },
    get: function get(key) {
      if (isObject$k(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        return nativeHas(this, key) ? nativeGet(this, key) : state.frozen.get(key);
      } return nativeGet(this, key);
    },
    set: function set(key, value) {
      if (isObject$k(key) && !isExtensible(key)) {
        var state = enforceInternalState(this);
        if (!state.frozen) state.frozen = new InternalWeakMap();
        nativeHas(this, key) ? nativeSet(this, key, value) : state.frozen.set(key, value);
      } else nativeSet(this, key, value);
      return this;
    }
  });
// Chakra Edge frozen keys fix
} else if (hasMSEdgeFreezingBug()) {
  defineBuiltIns(WeakMapPrototype, {
    set: function set(key, value) {
      var arrayIntegrityLevel;
      if (isArray$g(key)) {
        if (isFrozen(key)) arrayIntegrityLevel = FROZEN;
        else if (isSealed(key)) arrayIntegrityLevel = SEALED;
      }
      nativeSet(this, key, value);
      if (arrayIntegrityLevel == FROZEN) freeze(key);
      if (arrayIntegrityLevel == SEALED) seal(key);
      return this;
    }
  });
}

var path = path$y;

var weakMap$1 = path.WeakMap;

var parent$3 = weakMap$1;

var weakMap = parent$3;

(function (module) {
	module.exports = weakMap;
} (weakMap$2));

var _WeakMap = /*@__PURE__*/getDefaultExportFromCjs$1(weakMapExports);

/******************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */

function __classPrivateFieldGet(receiver, state, kind, f) {
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
    return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
}

function __classPrivateFieldSet(receiver, state, value, kind, f) {
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
    return (state.set(receiver, value)), value;
}

/**
 * The handler for selections
 */
var SelectionHandler = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   */
  function SelectionHandler(body, canvas) {
    var _this = this;
    _classCallCheck(this, SelectionHandler);
    this.body = body;
    this.canvas = canvas;
    // TODO: Consider firing an event on any change to the selection, not
    // only those caused by clicks and taps. It would be easy to implement
    // now and (at least to me) it seems like something that could be
    // quite useful.
    this._selectionAccumulator = new SelectionAccumulator();
    this.hoverObj = {
      nodes: {},
      edges: {}
    };
    this.options = {};
    this.defaultOptions = {
      multiselect: false,
      selectable: true,
      selectConnectedEdges: true,
      hoverConnectedEdges: true
    };
    _Object$assign(this.options, this.defaultOptions);
    this.body.emitter.on("_dataChanged", function () {
      _this.updateSelection();
    });
  }

/**
   *
   * @param {object} [options]
   */
  _createClass(SelectionHandler, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        var fields = ["multiselect", "hoverConnectedEdges", "selectable", "selectConnectedEdges"];
        selectiveDeepExtend(fields, this.options, options);
      }
    }

/**
     * handles the selection part of the tap;
     *
     * @param {{x: number, y: number}} pointer
     * @returns {boolean}
     */
  }, {
    key: "selectOnPoint",
    value: function selectOnPoint(pointer) {
      var selected = false;
      if (this.options.selectable === true) {
        var obj = this.getNodeAt(pointer) || this.getEdgeAt(pointer);

// unselect after getting the objects in order to restore width and height.
        this.unselectAll();
        if (obj !== undefined) {
          selected = this.selectObject(obj);
        }
        this.body.emitter.emit("_requestRedraw");
      }
      return selected;
    }

/**
     *
     * @param {{x: number, y: number}} pointer
     * @returns {boolean}
     */
  }, {
    key: "selectAdditionalOnPoint",
    value: function selectAdditionalOnPoint(pointer) {
      var selectionChanged = false;
      if (this.options.selectable === true) {
        var obj = this.getNodeAt(pointer) || this.getEdgeAt(pointer);
        if (obj !== undefined) {
          selectionChanged = true;
          if (obj.isSelected() === true) {
            this.deselectObject(obj);
          } else {
            this.selectObject(obj);
          }
          this.body.emitter.emit("_requestRedraw");
        }
      }
      return selectionChanged;
    }

/**
     * Create an object containing the standard fields for an event.
     *
     * @param {Event} event
     * @param {{x: number, y: number}} pointer Object with the x and y screen coordinates of the mouse
     * @returns {{}}
     * @private
     */
  }, {
    key: "_initBaseEvent",
    value: function _initBaseEvent(event, pointer) {
      var properties = {};
      properties["pointer"] = {
        DOM: {
          x: pointer.x,
          y: pointer.y
        },
        canvas: this.canvas.DOMtoCanvas(pointer)
      };
      properties["event"] = event;
      return properties;
    }

/**
     * Generate an event which the user can catch.
     *
     * This adds some extra data to the event with respect to cursor position and
     * selected nodes and edges.
     *
     * @param {string} eventType                          Name of event to send
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer            Object with the x and y screen coordinates of the mouse
     * @param {object | undefined} oldSelection             If present, selection state before event occured
     * @param {boolean|undefined} [emptySelection=false]  Indicate if selection data should be passed
     */
  }, {
    key: "generateClickEvent",
    value: function generateClickEvent(eventType, event, pointer, oldSelection) {
      var emptySelection = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
      var properties = this._initBaseEvent(event, pointer);
      if (emptySelection === true) {
        properties.nodes = [];
        properties.edges = [];
      } else {
        var tmp = this.getSelection();
        properties.nodes = tmp.nodes;
        properties.edges = tmp.edges;
      }
      if (oldSelection !== undefined) {
        properties["previousSelection"] = oldSelection;
      }
      if (eventType == "click") {
        // For the time being, restrict this functionality to
        // just the click event.
        properties.items = this.getClickedItems(pointer);
      }
      if (event.controlEdge !== undefined) {
        properties.controlEdge = event.controlEdge;
      }
      this.body.emitter.emit(eventType, properties);
    }

/**
     *
     * @param {object} obj
     * @param {boolean} [highlightEdges=this.options.selectConnectedEdges]
     * @returns {boolean}
     */
  }, {
    key: "selectObject",
    value: function selectObject(obj) {
      var highlightEdges = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.options.selectConnectedEdges;
      if (obj !== undefined) {
        if (obj instanceof Node) {
          if (highlightEdges === true) {
            var _this$_selectionAccum;
            (_this$_selectionAccum = this._selectionAccumulator).addEdges.apply(_this$_selectionAccum, _toConsumableArray(obj.edges));
          }
          this._selectionAccumulator.addNodes(obj);
        } else {
          this._selectionAccumulator.addEdges(obj);
        }
        return true;
      }
      return false;
    }

/**
     *
     * @param {object} obj
     */
  }, {
    key: "deselectObject",
    value: function deselectObject(obj) {
      if (obj.isSelected() === true) {
        obj.selected = false;
        this._removeFromSelection(obj);
      }
    }

/**
     * retrieve all nodes overlapping with given object
     *
     * @param {object} object  An object with parameters left, top, right, bottom
     * @returns {number[]}   An array with id's of the overlapping nodes
     * @private
     */
  }, {
    key: "_getAllNodesOverlappingWith",
    value: function _getAllNodesOverlappingWith(object) {
      var overlappingNodes = [];
      var nodes = this.body.nodes;
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var nodeId = this.body.nodeIndices[i];
        if (nodes[nodeId].isOverlappingWith(object)) {
          overlappingNodes.push(nodeId);
        }
      }
      return overlappingNodes;
    }

/**
     * Return a position object in canvasspace from a single point in screenspace
     *
     * @param {{x: number, y: number}} pointer
     * @returns {{left: number, top: number, right: number, bottom: number}}
     * @private
     */
  }, {
    key: "_pointerToPositionObject",
    value: function _pointerToPositionObject(pointer) {
      var canvasPos = this.canvas.DOMtoCanvas(pointer);
      return {
        left: canvasPos.x - 1,
        top: canvasPos.y + 1,
        right: canvasPos.x + 1,
        bottom: canvasPos.y - 1
      };
    }

/**
     * Get the top node at the passed point (like a click)
     *
     * @param {{x: number, y: number}} pointer
     * @param {boolean} [returnNode=true]
     * @returns {Node | undefined} node
     */
  }, {
    key: "getNodeAt",
    value: function getNodeAt(pointer) {
      var returnNode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      // we first check if this is an navigation controls element
      var positionObject = this._pointerToPositionObject(pointer);
      var overlappingNodes = this._getAllNodesOverlappingWith(positionObject);
      // if there are overlapping nodes, select the last one, this is the
      // one which is drawn on top of the others
      if (overlappingNodes.length > 0) {
        if (returnNode === true) {
          return this.body.nodes[overlappingNodes[overlappingNodes.length - 1]];
        } else {
          return overlappingNodes[overlappingNodes.length - 1];
        }
      } else {
        return undefined;
      }
    }

/**
     * retrieve all edges overlapping with given object, selector is around center
     *
     * @param {object} object  An object with parameters left, top, right, bottom
     * @param {number[]} overlappingEdges An array with id's of the overlapping nodes
     * @private
     */
  }, {
    key: "_getEdgesOverlappingWith",
    value: function _getEdgesOverlappingWith(object, overlappingEdges) {
      var edges = this.body.edges;
      for (var i = 0; i < this.body.edgeIndices.length; i++) {
        var edgeId = this.body.edgeIndices[i];
        if (edges[edgeId].isOverlappingWith(object)) {
          overlappingEdges.push(edgeId);
        }
      }
    }

/**
     * retrieve all nodes overlapping with given object
     *
     * @param {object} object  An object with parameters left, top, right, bottom
     * @returns {number[]}   An array with id's of the overlapping nodes
     * @private
     */
  }, {
    key: "_getAllEdgesOverlappingWith",
    value: function _getAllEdgesOverlappingWith(object) {
      var overlappingEdges = [];
      this._getEdgesOverlappingWith(object, overlappingEdges);
      return overlappingEdges;
    }

/**
     * Get the edges nearest to the passed point (like a click)
     *
     * @param {{x: number, y: number}} pointer
     * @param {boolean} [returnEdge=true]
     * @returns {Edge | undefined} node
     */
  }, {
    key: "getEdgeAt",
    value: function getEdgeAt(pointer) {
      var returnEdge = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      // Iterate over edges, pick closest within 10
      var canvasPos = this.canvas.DOMtoCanvas(pointer);
      var mindist = 10;
      var overlappingEdge = null;
      var edges = this.body.edges;
      for (var i = 0; i < this.body.edgeIndices.length; i++) {
        var edgeId = this.body.edgeIndices[i];
        var edge = edges[edgeId];
        if (edge.connected) {
          var xFrom = edge.from.x;
          var yFrom = edge.from.y;
          var xTo = edge.to.x;
          var yTo = edge.to.y;
          var dist = edge.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, canvasPos.x, canvasPos.y);
          if (dist < mindist) {
            overlappingEdge = edgeId;
            mindist = dist;
          }
        }
      }
      if (overlappingEdge !== null) {
        if (returnEdge === true) {
          return this.body.edges[overlappingEdge];
        } else {
          return overlappingEdge;
        }
      } else {
        return undefined;
      }
    }

/**
     * Add object to the selection array.
     *
     * @param {object} obj
     * @private
     */
  }, {
    key: "_addToHover",
    value: function _addToHover(obj) {
      if (obj instanceof Node) {
        this.hoverObj.nodes[obj.id] = obj;
      } else {
        this.hoverObj.edges[obj.id] = obj;
      }
    }

/**
     * Remove a single option from selection.
     *
     * @param {object} obj
     * @private
     */
  }, {
    key: "_removeFromSelection",
    value: function _removeFromSelection(obj) {
      if (obj instanceof Node) {
        var _this$_selectionAccum2;
        this._selectionAccumulator.deleteNodes(obj);
        (_this$_selectionAccum2 = this._selectionAccumulator).deleteEdges.apply(_this$_selectionAccum2, _toConsumableArray(obj.edges));
      } else {
        this._selectionAccumulator.deleteEdges(obj);
      }
    }

/**
     * Unselect all nodes and edges.
     */
  }, {
    key: "unselectAll",
    value: function unselectAll() {
      this._selectionAccumulator.clear();
    }

/**
     * return the number of selected nodes
     *
     * @returns {number}
     */
  }, {
    key: "getSelectedNodeCount",
    value: function getSelectedNodeCount() {
      return this._selectionAccumulator.sizeNodes;
    }

/**
     * return the number of selected edges
     *
     * @returns {number}
     */
  }, {
    key: "getSelectedEdgeCount",
    value: function getSelectedEdgeCount() {
      return this._selectionAccumulator.sizeEdges;
    }

/**
     * select the edges connected to the node that is being selected
     *
     * @param {Node} node
     * @private
     */
  }, {
    key: "_hoverConnectedEdges",
    value: function _hoverConnectedEdges(node) {
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        edge.hover = true;
        this._addToHover(edge);
      }
    }

/**
     * Remove the highlight from a node or edge, in response to mouse movement
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer object with the x and y screen coordinates of the mouse
     * @param {Node|vis.Edge} object
     * @private
     */
  }, {
    key: "emitBlurEvent",
    value: function emitBlurEvent(event, pointer, object) {
      var properties = this._initBaseEvent(event, pointer);
      if (object.hover === true) {
        object.hover = false;
        if (object instanceof Node) {
          properties.node = object.id;
          this.body.emitter.emit("blurNode", properties);
        } else {
          properties.edge = object.id;
          this.body.emitter.emit("blurEdge", properties);
        }
      }
    }

/**
     * Create the highlight for a node or edge, in response to mouse movement
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer object with the x and y screen coordinates of the mouse
     * @param {Node|vis.Edge} object
     * @returns {boolean} hoverChanged
     * @private
     */
  }, {
    key: "emitHoverEvent",
    value: function emitHoverEvent(event, pointer, object) {
      var properties = this._initBaseEvent(event, pointer);
      var hoverChanged = false;
      if (object.hover === false) {
        object.hover = true;
        this._addToHover(object);
        hoverChanged = true;
        if (object instanceof Node) {
          properties.node = object.id;
          this.body.emitter.emit("hoverNode", properties);
        } else {
          properties.edge = object.id;
          this.body.emitter.emit("hoverEdge", properties);
        }
      }
      return hoverChanged;
    }

/**
     * Perform actions in response to a mouse movement.
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer | object with the x and y screen coordinates of the mouse
     */
  }, {
    key: "hoverObject",
    value: function hoverObject(event, pointer) {
      var object = this.getNodeAt(pointer);
      if (object === undefined) {
        object = this.getEdgeAt(pointer);
      }
      var hoverChanged = false;
      // remove all node hover highlights
      for (var nodeId in this.hoverObj.nodes) {
        if (Object.prototype.hasOwnProperty.call(this.hoverObj.nodes, nodeId)) {
          if (object === undefined || object instanceof Node && object.id != nodeId || object instanceof Edge) {
            this.emitBlurEvent(event, pointer, this.hoverObj.nodes[nodeId]);
            delete this.hoverObj.nodes[nodeId];
            hoverChanged = true;
          }
        }
      }

// removing all edge hover highlights
      for (var edgeId in this.hoverObj.edges) {
        if (Object.prototype.hasOwnProperty.call(this.hoverObj.edges, edgeId)) {
          // if the hover has been changed here it means that the node has been hovered over or off
          // we then do not use the emitBlurEvent method here.
          if (hoverChanged === true) {
            this.hoverObj.edges[edgeId].hover = false;
            delete this.hoverObj.edges[edgeId];
          }
          // if the blur remains the same and the object is undefined (mouse off) or another
          // edge has been hovered, or another node has been hovered we blur the edge.
          else if (object === undefined || object instanceof Edge && object.id != edgeId || object instanceof Node && !object.hover) {
            this.emitBlurEvent(event, pointer, this.hoverObj.edges[edgeId]);
            delete this.hoverObj.edges[edgeId];
            hoverChanged = true;
          }
        }
      }
      if (object !== undefined) {
        var hoveredEdgesCount = _Object$keys(this.hoverObj.edges).length;
        var hoveredNodesCount = _Object$keys(this.hoverObj.nodes).length;
        var newOnlyHoveredEdge = object instanceof Edge && hoveredEdgesCount === 0 && hoveredNodesCount === 0;
        var newOnlyHoveredNode = object instanceof Node && hoveredEdgesCount === 0 && hoveredNodesCount === 0;
        if (hoverChanged || newOnlyHoveredEdge || newOnlyHoveredNode) {
          hoverChanged = this.emitHoverEvent(event, pointer, object);
        }
        if (object instanceof Node && this.options.hoverConnectedEdges === true) {
          this._hoverConnectedEdges(object);
        }
      }
      if (hoverChanged === true) {
        this.body.emitter.emit("_requestRedraw");
      }
    }

/**
     * Commit the selection changes but don't emit any events.
     */
  }, {
    key: "commitWithoutEmitting",
    value: function commitWithoutEmitting() {
      this._selectionAccumulator.commit();
    }

/**
     * Select and deselect nodes depending current selection change.
     *
     * For changing nodes, select/deselect events are fired.
     *
     * NOTE: For a given edge, if one connecting node is deselected and with the
     * same click the other node is selected, no events for the edge will fire. It
     * was selected and it will remain selected.
     *
     * @param {{x: number, y: number}} pointer - The x and y coordinates of the
     * click, tap, dragend… that triggered this.
     * @param {UIEvent} event - The event that triggered this.
     */
  }, {
    key: "commitAndEmit",
    value: function commitAndEmit(pointer, event) {
      var selected = false;
      var selectionChanges = this._selectionAccumulator.commit();
      var previousSelection = {
        nodes: selectionChanges.nodes.previous,
        edges: selectionChanges.edges.previous
      };
      if (selectionChanges.edges.deleted.length > 0) {
        this.generateClickEvent("deselectEdge", event, pointer, previousSelection);
        selected = true;
      }
      if (selectionChanges.nodes.deleted.length > 0) {
        this.generateClickEvent("deselectNode", event, pointer, previousSelection);
        selected = true;
      }
      if (selectionChanges.nodes.added.length > 0) {
        this.generateClickEvent("selectNode", event, pointer);
        selected = true;
      }
      if (selectionChanges.edges.added.length > 0) {
        this.generateClickEvent("selectEdge", event, pointer);
        selected = true;
      }

// fire the select event if anything has been selected or deselected
      if (selected === true) {
        // select or unselect
        this.generateClickEvent("select", event, pointer);
      }
    }

/**
     * Retrieve the currently selected node and edge ids.
     *
     * @returns {{nodes: Array.<string>, edges: Array.<string>}} Arrays with the
     * ids of the selected nodes and edges.
     */
  }, {
    key: "getSelection",
    value: function getSelection() {
      return {
        nodes: this.getSelectedNodeIds(),
        edges: this.getSelectedEdgeIds()
      };
    }

/**
     * Retrieve the currently selected nodes.
     *
     * @returns {Array} An array with selected nodes.
     */
  }, {
    key: "getSelectedNodes",
    value: function getSelectedNodes() {
      return this._selectionAccumulator.getNodes();
    }

/**
     * Retrieve the currently selected edges.
     *
     * @returns {Array} An array with selected edges.
     */
  }, {
    key: "getSelectedEdges",
    value: function getSelectedEdges() {
      return this._selectionAccumulator.getEdges();
    }

/**
     * Retrieve the currently selected node ids.
     *
     * @returns {Array} An array with the ids of the selected nodes.
     */
  }, {
    key: "getSelectedNodeIds",
    value: function getSelectedNodeIds() {
      var _context;
      return _mapInstanceProperty(_context = this._selectionAccumulator.getNodes()).call(_context, function (node) {
        return node.id;
      });
    }

/**
     * Retrieve the currently selected edge ids.
     *
     * @returns {Array} An array with the ids of the selected edges.
     */
  }, {
    key: "getSelectedEdgeIds",
    value: function getSelectedEdgeIds() {
      var _context2;
      return _mapInstanceProperty(_context2 = this._selectionAccumulator.getEdges()).call(_context2, function (edge) {
        return edge.id;
      });
    }

/**
     * Updates the current selection
     *
     * @param {{nodes: Array.<string>, edges: Array.<string>}} selection
     * @param {object} options                                 Options
     */
  }, {
    key: "setSelection",
    value: function setSelection(selection) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      if (!selection || !selection.nodes && !selection.edges) {
        throw new TypeError("Selection must be an object with nodes and/or edges properties");
      }

// first unselect any selected node, if option is true or undefined
      if (options.unselectAll || options.unselectAll === undefined) {
        this.unselectAll();
      }
      if (selection.nodes) {
        var _iterator = _createForOfIteratorHelper$2(selection.nodes),
          _step;
        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var id = _step.value;
            var node = this.body.nodes[id];
            if (!node) {
              throw new RangeError('Node with id "' + id + '" not found');
            }
            // don't select edges with it
            this.selectObject(node, options.highlightEdges);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }
      if (selection.edges) {
        var _iterator2 = _createForOfIteratorHelper$2(selection.edges),
          _step2;
        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var _id = _step2.value;
            var edge = this.body.edges[_id];
            if (!edge) {
              throw new RangeError('Edge with id "' + _id + '" not found');
            }
            this.selectObject(edge);
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }
      }
      this.body.emitter.emit("_requestRedraw");
      this._selectionAccumulator.commit();
    }

/**
     * select zero or more nodes with the option to highlight edges
     *
     * @param {number[] | string[]} selection     An array with the ids of the
     *                                            selected nodes.
     * @param {boolean} [highlightEdges]
     */
  }, {
    key: "selectNodes",
    value: function selectNodes(selection) {
      var highlightEdges = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      if (!selection || selection.length === undefined) throw "Selection must be an array with ids";
      this.setSelection({
        nodes: selection
      }, {
        highlightEdges: highlightEdges
      });
    }

/**
     * select zero or more edges
     *
     * @param {number[] | string[]} selection     An array with the ids of the
     *                                            selected nodes.
     */
  }, {
    key: "selectEdges",
    value: function selectEdges(selection) {
      if (!selection || selection.length === undefined) throw "Selection must be an array with ids";
      this.setSelection({
        edges: selection
      });
    }

/**
     * Validate the selection: remove ids of nodes which no longer exist
     *
     * @private
     */
  }, {
    key: "updateSelection",
    value: function updateSelection() {
      for (var node in this._selectionAccumulator.getNodes()) {
        if (!Object.prototype.hasOwnProperty.call(this.body.nodes, node.id)) {
          this._selectionAccumulator.deleteNodes(node);
        }
      }
      for (var edge in this._selectionAccumulator.getEdges()) {
        if (!Object.prototype.hasOwnProperty.call(this.body.edges, edge.id)) {
          this._selectionAccumulator.deleteEdges(edge);
        }
      }
    }

/**
     * Determine all the visual elements clicked which are on the given point.
     *
     * All elements are returned; this includes nodes, edges and their labels.
     * The order returned is from highest to lowest, i.e. element 0 of the return
     * value is the topmost item clicked on.
     *
     * The return value consists of an array of the following possible elements:
     *
     * - `{nodeId:number}`             - node with given id clicked on
     * - `{nodeId:number, labelId:0}`  - label of node with given id clicked on
     * - `{edgeId:number}`             - edge with given id clicked on
     * - `{edge:number, labelId:0}`    - label of edge with given id clicked on
     *
     * ## NOTES
     *
     * - Currently, there is only one label associated with a node or an edge,
     *   but this is expected to change somewhere in the future.
     * - Since there is no z-indexing yet, it is not really possible to set the nodes and
     *   edges in the correct order. For the time being, nodes come first.
     *
     * @param {point} pointer  mouse position in screen coordinates
     * @returns {Array.<nodeClickItem|nodeLabelClickItem|edgeClickItem|edgeLabelClickItem>}
     * @private
     */
  }, {
    key: "getClickedItems",
    value: function getClickedItems(pointer) {
      var point = this.canvas.DOMtoCanvas(pointer);
      var items = [];

// Note reverse order; we want the topmost clicked items to be first in the array
      // Also note that selected nodes are disregarded here; these normally display on top
      var nodeIndices = this.body.nodeIndices;
      var nodes = this.body.nodes;
      for (var i = nodeIndices.length - 1; i >= 0; i--) {
        var node = nodes[nodeIndices[i]];
        var ret = node.getItemsOnPoint(point);
        items.push.apply(items, ret); // Append the return value to the running list.
      }

var edgeIndices = this.body.edgeIndices;
      var edges = this.body.edges;
      for (var _i = edgeIndices.length - 1; _i >= 0; _i--) {
        var edge = edges[edgeIndices[_i]];
        var _ret = edge.getItemsOnPoint(point);
        items.push.apply(items, _ret); // Append the return value to the running list.
      }

return items;
    }
  }]);
  return SelectionHandler;
}();

var sortExports = {};
var sort$3 = {
  get exports(){ return sortExports; },
  set exports(v){ sortExports = v; },
};

var arraySlice$6 = arraySliceSimple;

var floor = Math.floor;

var mergeSort = function (array, comparefn) {
  var length = array.length;
  var middle = floor(length / 2);
  return length < 8 ? insertionSort(array, comparefn) : merge$3(
    array,
    mergeSort(arraySlice$6(array, 0, middle), comparefn),
    mergeSort(arraySlice$6(array, middle), comparefn),
    comparefn
  );
};

var insertionSort = function (array, comparefn) {
  var length = array.length;
  var i = 1;
  var element, j;

var merge$3 = function (array, left, right, comparefn) {
  var llength = left.length;
  var rlength = right.length;
  var lindex = 0;
  var rindex = 0;

var arraySort = mergeSort;

var userAgent$1 = engineUserAgent;

var firefox = userAgent$1.match(/firefox\/(\d+)/i);

var engineFfVersion = !!firefox && +firefox[1];

var UA = engineUserAgent;

var engineIsIeOrEdge = /MSIE|Trident/.test(UA);

var userAgent = engineUserAgent;

var webkit = userAgent.match(/AppleWebKit\/(\d+)\./);

var engineWebkitVersion = !!webkit && +webkit[1];

var $$2 = _export;
var uncurryThis = functionUncurryThis;
var aCallable$1 = aCallable$7;
var toObject$1 = toObject$d;
var lengthOfArrayLike$1 = lengthOfArrayLike$b;
var deletePropertyOrThrow = deletePropertyOrThrow$2;
var toString = toString$a;
var fails = fails$w;
var internalSort = arraySort;
var arrayMethodIsStrict$2 = arrayMethodIsStrict$6;
var FF = engineFfVersion;
var IE_OR_EDGE = engineIsIeOrEdge;
var V8 = engineV8Version;
var WEBKIT = engineWebkitVersion;

var test = [];
var nativeSort = uncurryThis(test.sort);
var push = uncurryThis(test.push);

// IE8-
var FAILS_ON_UNDEFINED = fails(function () {
  test.sort(undefined);
});
// V8 bug
var FAILS_ON_NULL = fails(function () {
  test.sort(null);
});
// Old WebKit
var STRICT_METHOD$1 = arrayMethodIsStrict$2('sort');

var STABLE_SORT = !fails(function () {
  // feature detection can be too slow, so check engines versions
  if (V8) return V8 < 70;
  if (FF && FF > 3) return;
  if (IE_OR_EDGE) return true;
  if (WEBKIT) return WEBKIT < 603;

var result = '';
  var code, chr, value, index;

// generate an array with more 512 elements (Chakra and old V8 fails only in this case)
  for (code = 65; code < 76; code++) {
    chr = String.fromCharCode(code);

switch (code) {
      case 66: case 69: case 70: case 72: value = 3; break;
      case 68: case 71: value = 4; break;
      default: value = 2;
    }

for (index = 0; index < 47; index++) {
      test.push({ k: chr + index, v: value });
    }
  }

test.sort(function (a, b) { return b.v - a.v; });

for (index = 0; index < test.length; index++) {
    chr = test[index].k.charAt(0);
    if (result.charAt(result.length - 1) !== chr) result += chr;
  }

return result !== 'DGBEFHACIJK';
});

var FORCED$1 = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || !STRICT_METHOD$1 || !STABLE_SORT;

var getSortCompare = function (comparefn) {
  return function (x, y) {
    if (y === undefined) return -1;
    if (x === undefined) return 1;
    if (comparefn !== undefined) return +comparefn(x, y) || 0;
    return toString(x) > toString(y) ? 1 : -1;
  };
};

// `Array.prototype.sort` method
// https://tc39.es/ecma262/#sec-array.prototype.sort
$$2({ target: 'Array', proto: true, forced: FORCED$1 }, {
  sort: function sort(comparefn) {
    if (comparefn !== undefined) aCallable$1(comparefn);

var array = toObject$1(this);

if (STABLE_SORT) return comparefn === undefined ? nativeSort(array) : nativeSort(array, comparefn);

var items = [];
    var arrayLength = lengthOfArrayLike$1(array);
    var itemsLength, index;

for (index = 0; index < arrayLength; index++) {
      if (index in array) push(items, array[index]);
    }

internalSort(items, getSortCompare(comparefn));

itemsLength = lengthOfArrayLike$1(items);
    index = 0;

while (index < itemsLength) array[index] = items[index++];
    while (index < arrayLength) deletePropertyOrThrow(array, index++);

return array;
  }
});

var entryVirtual$2 = entryVirtual$i;

var sort$2 = entryVirtual$2('Array').sort;

var isPrototypeOf$2 = objectIsPrototypeOf;
var method$2 = sort$2;

var ArrayPrototype$2 = Array.prototype;

var sort$1 = function (it) {
  var own = it.sort;
  return it === ArrayPrototype$2 || (isPrototypeOf$2(ArrayPrototype$2, it) && own === ArrayPrototype$2.sort) ? method$2 : own;
};

var parent$2 = sort$1;

var sort$4 = parent$2;

(function (module) {
	module.exports = sort$4;
} (sort$3));

var _sortInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(sortExports);

var reduceExports = {};
var reduce$3 = {
  get exports(){ return reduceExports; },
  set exports(v){ reduceExports = v; },
};

var aCallable = aCallable$7;
var toObject = toObject$d;
var IndexedObject = indexedObject;
var lengthOfArrayLike = lengthOfArrayLike$b;

var $TypeError = TypeError;

// `Array.prototype.{ reduce, reduceRight }` methods implementation
var createMethod = function (IS_RIGHT) {
  return function (that, callbackfn, argumentsLength, memo) {
    aCallable(callbackfn);
    var O = toObject(that);
    var self = IndexedObject(O);
    var length = lengthOfArrayLike(O);
    var index = IS_RIGHT ? length - 1 : 0;
    var i = IS_RIGHT ? -1 : 1;
    if (argumentsLength < 2) while (true) {
      if (index in self) {
        memo = self[index];
        index += i;
        break;
      }
      index += i;
      if (IS_RIGHT ? index < 0 : length <= index) {
        throw $TypeError('Reduce of empty array with no initial value');
      }
    }
    for (;IS_RIGHT ? index >= 0 : length > index; index += i) if (index in self) {
      memo = callbackfn(memo, self[index], index, O);
    }
    return memo;
  };
};

var arrayReduce = {
  // `Array.prototype.reduce` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduce
  left: createMethod(false),
  // `Array.prototype.reduceRight` method
  // https://tc39.es/ecma262/#sec-array.prototype.reduceright
  right: createMethod(true)
};

var classof = classofRaw$2;

var engineIsNode = typeof process != 'undefined' && classof(process) == 'process';

var $$1 = _export;
var $reduce = arrayReduce.left;
var arrayMethodIsStrict$1 = arrayMethodIsStrict$6;
var CHROME_VERSION = engineV8Version;
var IS_NODE = engineIsNode;

// Chrome 80-82 has a critical bug
// https://bugs.chromium.org/p/chromium/issues/detail?id=1049982
var CHROME_BUG = !IS_NODE && CHROME_VERSION > 79 && CHROME_VERSION < 83;
var FORCED = CHROME_BUG || !arrayMethodIsStrict$1('reduce');

// `Array.prototype.reduce` method
// https://tc39.es/ecma262/#sec-array.prototype.reduce
$$1({ target: 'Array', proto: true, forced: FORCED }, {
  reduce: function reduce(callbackfn /* , initialValue */) {
    var length = arguments.length;
    return $reduce(this, callbackfn, length, length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual$1 = entryVirtual$i;

var reduce$2 = entryVirtual$1('Array').reduce;

var isPrototypeOf$1 = objectIsPrototypeOf;
var method$1 = reduce$2;

var ArrayPrototype$1 = Array.prototype;

var reduce$1 = function (it) {
  var own = it.reduce;
  return it === ArrayPrototype$1 || (isPrototypeOf$1(ArrayPrototype$1, it) && own === ArrayPrototype$1.reduce) ? method$1 : own;
};

var parent$1 = reduce$1;

var reduce$4 = parent$1;

(function (module) {
	module.exports = reduce$4;
} (reduce$3));

var _reduceInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(reduceExports);

var timsortExports = {};
var timsort$1 = {
  get exports(){ return timsortExports; },
  set exports(v){ timsortExports = v; },
};

var timsort = {};

/****
 * The MIT License
 *
 * Copyright (c) 2015 Marco Ziccardi
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 ****/

(function (exports) {
	(function (global, factory) {
	  {
	    factory(exports);
	  }
	})(commonjsGlobal$1, function (exports) {

exports.__esModule = true;
	  exports.sort = sort;

function _classCallCheck(instance, Constructor) {
	    if (!(instance instanceof Constructor)) {
	      throw new TypeError('Cannot call a class as a function');
	    }
	  }

var DEFAULT_MIN_MERGE = 32;

var DEFAULT_MIN_GALLOPING = 7;

var DEFAULT_TMP_STORAGE_LENGTH = 256;

var POWERS_OF_TEN = [1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9];

function log10(x) {
	    if (x < 1e5) {
	      if (x < 1e2) {
	        return x < 1e1 ? 0 : 1;
	      }

if (x < 1e4) {
	        return x < 1e3 ? 2 : 3;
	      }

return 4;
	    }

if (x < 1e7) {
	      return x < 1e6 ? 5 : 6;
	    }

if (x < 1e9) {
	      return x < 1e8 ? 7 : 8;
	    }

return 9;
	  }

function alphabeticalCompare(a, b) {
	    if (a === b) {
	      return 0;
	    }

if (~ ~a === a && ~ ~b === b) {
	      if (a === 0 || b === 0) {
	        return a < b ? -1 : 1;
	      }

if (a < 0 || b < 0) {
	        if (b >= 0) {
	          return -1;
	        }

if (a >= 0) {
	          return 1;
	        }

a = -a;
	        b = -b;
	      }

var al = log10(a);
	      var bl = log10(b);

var t = 0;

if (al < bl) {
	        a *= POWERS_OF_TEN[bl - al - 1];
	        b /= 10;
	        t = -1;
	      } else if (al > bl) {
	        b *= POWERS_OF_TEN[al - bl - 1];
	        a /= 10;
	        t = 1;
	      }

if (a === b) {
	        return t;
	      }

return a < b ? -1 : 1;
	    }

var aStr = String(a);
	    var bStr = String(b);

if (aStr === bStr) {
	      return 0;
	    }

return aStr < bStr ? -1 : 1;
	  }

function minRunLength(n) {
	    var r = 0;

while (n >= DEFAULT_MIN_MERGE) {
	      r |= n & 1;
	      n >>= 1;
	    }

return n + r;
	  }

function makeAscendingRun(array, lo, hi, compare) {
	    var runHi = lo + 1;

if (runHi === hi) {
	      return 1;
	    }

if (compare(array[runHi++], array[lo]) < 0) {
	      while (runHi < hi && compare(array[runHi], array[runHi - 1]) < 0) {
	        runHi++;
	      }

reverseRun(array, lo, runHi);
	    } else {
	      while (runHi < hi && compare(array[runHi], array[runHi - 1]) >= 0) {
	        runHi++;
	      }
	    }

return runHi - lo;
	  }

function reverseRun(array, lo, hi) {
	    hi--;

while (lo < hi) {
	      var t = array[lo];
	      array[lo++] = array[hi];
	      array[hi--] = t;
	    }
	  }

function binaryInsertionSort(array, lo, hi, start, compare) {
	    if (start === lo) {
	      start++;
	    }

for (; start < hi; start++) {
	      var pivot = array[start];

var left = lo;
	      var right = start;

while (left < right) {
	        var mid = left + right >>> 1;

if (compare(pivot, array[mid]) < 0) {
	          right = mid;
	        } else {
	          left = mid + 1;
	        }
	      }

var n = start - left;

switch (n) {
	        case 3:
	          array[left + 3] = array[left + 2];

case 2:
	          array[left + 2] = array[left + 1];

case 1:
	          array[left + 1] = array[left];
	          break;
	        default:
	          while (n > 0) {
	            array[left + n] = array[left + n - 1];
	            n--;
	          }
	      }

array[left] = pivot;
	    }
	  }

function gallopLeft(value, array, start, length, hint, compare) {
	    var lastOffset = 0;
	    var maxOffset = 0;
	    var offset = 1;

if (compare(value, array[start + hint]) > 0) {
	      maxOffset = length - hint;

while (offset < maxOffset && compare(value, array[start + hint + offset]) > 0) {
	        lastOffset = offset;
	        offset = (offset << 1) + 1;

if (offset <= 0) {
	          offset = maxOffset;
	        }
	      }

if (offset > maxOffset) {
	        offset = maxOffset;
	      }

lastOffset += hint;
	      offset += hint;
	    } else {
	      maxOffset = hint + 1;
	      while (offset < maxOffset && compare(value, array[start + hint - offset]) <= 0) {
	        lastOffset = offset;
	        offset = (offset << 1) + 1;

if (offset <= 0) {
	          offset = maxOffset;
	        }
	      }
	      if (offset > maxOffset) {
	        offset = maxOffset;
	      }

var tmp = lastOffset;
	      lastOffset = hint - offset;
	      offset = hint - tmp;
	    }

lastOffset++;
	    while (lastOffset < offset) {
	      var m = lastOffset + (offset - lastOffset >>> 1);

if (compare(value, array[start + m]) > 0) {
	        lastOffset = m + 1;
	      } else {
	        offset = m;
	      }
	    }
	    return offset;
	  }

function gallopRight(value, array, start, length, hint, compare) {
	    var lastOffset = 0;
	    var maxOffset = 0;
	    var offset = 1;

if (compare(value, array[start + hint]) < 0) {
	      maxOffset = hint + 1;

while (offset < maxOffset && compare(value, array[start + hint - offset]) < 0) {
	        lastOffset = offset;
	        offset = (offset << 1) + 1;

if (offset <= 0) {
	          offset = maxOffset;
	        }
	      }

if (offset > maxOffset) {
	        offset = maxOffset;
	      }

var tmp = lastOffset;
	      lastOffset = hint - offset;
	      offset = hint - tmp;
	    } else {
	      maxOffset = length - hint;

while (offset < maxOffset && compare(value, array[start + hint + offset]) >= 0) {
	        lastOffset = offset;
	        offset = (offset << 1) + 1;

if (offset <= 0) {
	          offset = maxOffset;
	        }
	      }

if (offset > maxOffset) {
	        offset = maxOffset;
	      }

lastOffset += hint;
	      offset += hint;
	    }

lastOffset++;

while (lastOffset < offset) {
	      var m = lastOffset + (offset - lastOffset >>> 1);

if (compare(value, array[start + m]) < 0) {
	        offset = m;
	      } else {
	        lastOffset = m + 1;
	      }
	    }

return offset;
	  }

var TimSort = (function () {
	    function TimSort(array, compare) {
	      _classCallCheck(this, TimSort);

this.array = null;
	      this.compare = null;
	      this.minGallop = DEFAULT_MIN_GALLOPING;
	      this.length = 0;
	      this.tmpStorageLength = DEFAULT_TMP_STORAGE_LENGTH;
	      this.stackLength = 0;
	      this.runStart = null;
	      this.runLength = null;
	      this.stackSize = 0;

this.array = array;
	      this.compare = compare;

this.length = array.length;

if (this.length < 2 * DEFAULT_TMP_STORAGE_LENGTH) {
	        this.tmpStorageLength = this.length >>> 1;
	      }

this.tmp = new Array(this.tmpStorageLength);

this.stackLength = this.length < 120 ? 5 : this.length < 1542 ? 10 : this.length < 119151 ? 19 : 40;

this.runStart = new Array(this.stackLength);
	      this.runLength = new Array(this.stackLength);
	    }

TimSort.prototype.pushRun = function pushRun(runStart, runLength) {
	      this.runStart[this.stackSize] = runStart;
	      this.runLength[this.stackSize] = runLength;
	      this.stackSize += 1;
	    };

TimSort.prototype.mergeRuns = function mergeRuns() {
	      while (this.stackSize > 1) {
	        var n = this.stackSize - 2;

if (n >= 1 && this.runLength[n - 1] <= this.runLength[n] + this.runLength[n + 1] || n >= 2 && this.runLength[n - 2] <= this.runLength[n] + this.runLength[n - 1]) {

if (this.runLength[n - 1] < this.runLength[n + 1]) {
	            n--;
	          }
	        } else if (this.runLength[n] > this.runLength[n + 1]) {
	          break;
	        }
	        this.mergeAt(n);
	      }
	    };

TimSort.prototype.forceMergeRuns = function forceMergeRuns() {
	      while (this.stackSize > 1) {
	        var n = this.stackSize - 2;

if (n > 0 && this.runLength[n - 1] < this.runLength[n + 1]) {
	          n--;
	        }

this.mergeAt(n);
	      }
	    };

TimSort.prototype.mergeAt = function mergeAt(i) {
	      var compare = this.compare;
	      var array = this.array;

var start1 = this.runStart[i];
	      var length1 = this.runLength[i];
	      var start2 = this.runStart[i + 1];
	      var length2 = this.runLength[i + 1];

this.runLength[i] = length1 + length2;

if (i === this.stackSize - 3) {
	        this.runStart[i + 1] = this.runStart[i + 2];
	        this.runLength[i + 1] = this.runLength[i + 2];
	      }

this.stackSize--;

var k = gallopRight(array[start2], array, start1, length1, 0, compare);
	      start1 += k;
	      length1 -= k;

if (length1 === 0) {
	        return;
	      }

length2 = gallopLeft(array[start1 + length1 - 1], array, start2, length2, length2 - 1, compare);

if (length2 === 0) {
	        return;
	      }

if (length1 <= length2) {
	        this.mergeLow(start1, length1, start2, length2);
	      } else {
	        this.mergeHigh(start1, length1, start2, length2);
	      }
	    };

TimSort.prototype.mergeLow = function mergeLow(start1, length1, start2, length2) {

var compare = this.compare;
	      var array = this.array;
	      var tmp = this.tmp;
	      var i = 0;

for (i = 0; i < length1; i++) {
	        tmp[i] = array[start1 + i];
	      }

var cursor1 = 0;
	      var cursor2 = start2;
	      var dest = start1;

array[dest++] = array[cursor2++];

if (--length2 === 0) {
	        for (i = 0; i < length1; i++) {
	          array[dest + i] = tmp[cursor1 + i];
	        }
	        return;
	      }

if (length1 === 1) {
	        for (i = 0; i < length2; i++) {
	          array[dest + i] = array[cursor2 + i];
	        }
	        array[dest + length2] = tmp[cursor1];
	        return;
	      }

var minGallop = this.minGallop;

while (true) {
	        var count1 = 0;
	        var count2 = 0;
	        var exit = false;

do {
	          if (compare(array[cursor2], tmp[cursor1]) < 0) {
	            array[dest++] = array[cursor2++];
	            count2++;
	            count1 = 0;

if (--length2 === 0) {
	              exit = true;
	              break;
	            }
	          } else {
	            array[dest++] = tmp[cursor1++];
	            count1++;
	            count2 = 0;
	            if (--length1 === 1) {
	              exit = true;
	              break;
	            }
	          }
	        } while ((count1 | count2) < minGallop);

if (exit) {
	          break;
	        }

do {
	          count1 = gallopRight(array[cursor2], tmp, cursor1, length1, 0, compare);

if (count1 !== 0) {
	            for (i = 0; i < count1; i++) {
	              array[dest + i] = tmp[cursor1 + i];
	            }

dest += count1;
	            cursor1 += count1;
	            length1 -= count1;
	            if (length1 <= 1) {
	              exit = true;
	              break;
	            }
	          }

array[dest++] = array[cursor2++];

if (--length2 === 0) {
	            exit = true;
	            break;
	          }

count2 = gallopLeft(tmp[cursor1], array, cursor2, length2, 0, compare);

if (count2 !== 0) {
	            for (i = 0; i < count2; i++) {
	              array[dest + i] = array[cursor2 + i];
	            }

dest += count2;
	            cursor2 += count2;
	            length2 -= count2;

if (length2 === 0) {
	              exit = true;
	              break;
	            }
	          }
	          array[dest++] = tmp[cursor1++];

if (--length1 === 1) {
	            exit = true;
	            break;
	          }

minGallop--;
	        } while (count1 >= DEFAULT_MIN_GALLOPING || count2 >= DEFAULT_MIN_GALLOPING);

if (exit) {
	          break;
	        }

if (minGallop < 0) {
	          minGallop = 0;
	        }

minGallop += 2;
	      }

this.minGallop = minGallop;

if (minGallop < 1) {
	        this.minGallop = 1;
	      }

if (length1 === 1) {
	        for (i = 0; i < length2; i++) {
	          array[dest + i] = array[cursor2 + i];
	        }
	        array[dest + length2] = tmp[cursor1];
	      } else if (length1 === 0) {
	        throw new Error('mergeLow preconditions were not respected');
	      } else {
	        for (i = 0; i < length1; i++) {
	          array[dest + i] = tmp[cursor1 + i];
	        }
	      }
	    };

TimSort.prototype.mergeHigh = function mergeHigh(start1, length1, start2, length2) {
	      var compare = this.compare;
	      var array = this.array;
	      var tmp = this.tmp;
	      var i = 0;

for (i = 0; i < length2; i++) {
	        tmp[i] = array[start2 + i];
	      }

var cursor1 = start1 + length1 - 1;
	      var cursor2 = length2 - 1;
	      var dest = start2 + length2 - 1;
	      var customCursor = 0;
	      var customDest = 0;

array[dest--] = array[cursor1--];

if (--length1 === 0) {
	        customCursor = dest - (length2 - 1);

for (i = 0; i < length2; i++) {
	          array[customCursor + i] = tmp[i];
	        }

return;
	      }

if (length2 === 1) {
	        dest -= length1;
	        cursor1 -= length1;
	        customDest = dest + 1;
	        customCursor = cursor1 + 1;

for (i = length1 - 1; i >= 0; i--) {
	          array[customDest + i] = array[customCursor + i];
	        }

array[dest] = tmp[cursor2];
	        return;
	      }

var minGallop = this.minGallop;

while (true) {
	        var count1 = 0;
	        var count2 = 0;
	        var exit = false;

do {
	          if (compare(tmp[cursor2], array[cursor1]) < 0) {
	            array[dest--] = array[cursor1--];
	            count1++;
	            count2 = 0;
	            if (--length1 === 0) {
	              exit = true;
	              break;
	            }
	          } else {
	            array[dest--] = tmp[cursor2--];
	            count2++;
	            count1 = 0;
	            if (--length2 === 1) {
	              exit = true;
	              break;
	            }
	          }
	        } while ((count1 | count2) < minGallop);

if (exit) {
	          break;
	        }

do {
	          count1 = length1 - gallopRight(tmp[cursor2], array, start1, length1, length1 - 1, compare);

if (count1 !== 0) {
	            dest -= count1;
	            cursor1 -= count1;
	            length1 -= count1;
	            customDest = dest + 1;
	            customCursor = cursor1 + 1;

for (i = count1 - 1; i >= 0; i--) {
	              array[customDest + i] = array[customCursor + i];
	            }

if (length1 === 0) {
	              exit = true;
	              break;
	            }
	          }

array[dest--] = tmp[cursor2--];

if (--length2 === 1) {
	            exit = true;
	            break;
	          }

count2 = length2 - gallopLeft(array[cursor1], tmp, 0, length2, length2 - 1, compare);

if (count2 !== 0) {
	            dest -= count2;
	            cursor2 -= count2;
	            length2 -= count2;
	            customDest = dest + 1;
	            customCursor = cursor2 + 1;

for (i = 0; i < count2; i++) {
	              array[customDest + i] = tmp[customCursor + i];
	            }

if (length2 <= 1) {
	              exit = true;
	              break;
	            }
	          }

array[dest--] = array[cursor1--];

if (--length1 === 0) {
	            exit = true;
	            break;
	          }

minGallop--;
	        } while (count1 >= DEFAULT_MIN_GALLOPING || count2 >= DEFAULT_MIN_GALLOPING);

if (exit) {
	          break;
	        }

if (minGallop < 0) {
	          minGallop = 0;
	        }

minGallop += 2;
	      }

this.minGallop = minGallop;

if (minGallop < 1) {
	        this.minGallop = 1;
	      }

if (length2 === 1) {
	        dest -= length1;
	        cursor1 -= length1;
	        customDest = dest + 1;
	        customCursor = cursor1 + 1;

for (i = length1 - 1; i >= 0; i--) {
	          array[customDest + i] = array[customCursor + i];
	        }

array[dest] = tmp[cursor2];
	      } else if (length2 === 0) {
	        throw new Error('mergeHigh preconditions were not respected');
	      } else {
	        customCursor = dest - (length2 - 1);
	        for (i = 0; i < length2; i++) {
	          array[customCursor + i] = tmp[i];
	        }
	      }
	    };

return TimSort;
	  })();

function sort(array, compare, lo, hi) {
	    if (!Array.isArray(array)) {
	      throw new TypeError('Can only sort arrays');
	    }

if (!compare) {
	      compare = alphabeticalCompare;
	    } else if (typeof compare !== 'function') {
	      hi = lo;
	      lo = compare;
	      compare = alphabeticalCompare;
	    }

if (!lo) {
	      lo = 0;
	    }
	    if (!hi) {
	      hi = array.length;
	    }

var remaining = hi - lo;

if (remaining < 2) {
	      return;
	    }

var runLength = 0;

if (remaining < DEFAULT_MIN_MERGE) {
	      runLength = makeAscendingRun(array, lo, hi, compare);
	      binaryInsertionSort(array, lo, hi, lo + runLength, compare);
	      return;
	    }

var ts = new TimSort(array, compare);

var minRun = minRunLength(remaining);

do {
	      runLength = makeAscendingRun(array, lo, hi, compare);
	      if (runLength < minRun) {
	        var force = remaining;
	        if (force > minRun) {
	          force = minRun;
	        }

binaryInsertionSort(array, lo, lo + force, lo + runLength, compare);
	        runLength = force;
	      }

ts.pushRun(lo, runLength);
	      ts.mergeRuns();

remaining -= runLength;
	      lo += runLength;
	    } while (remaining !== 0);

ts.forceMergeRuns();
	  }
	});
} (timsort));

(function (module) {
	module.exports = timsort;
} (timsort$1));

var TimSort$1 = /*@__PURE__*/getDefaultExportFromCjs$1(timsortExports);

/**
 * Interface definition for direction strategy classes.
 *
 * This class describes the interface for the Strategy
 * pattern classes used to differentiate horizontal and vertical
 * direction of hierarchical results.
 *
 * For a given direction, one coordinate will be 'fixed', meaning that it is
 * determined by level.
 * The other coordinate is 'unfixed', meaning that the nodes on a given level
 * can still move along that coordinate. So:
 *
 * - `vertical` layout: `x` unfixed, `y` fixed per level
 * - `horizontal` layout: `x` fixed per level, `y` unfixed
 *
 * The local methods are stubs and should be regarded as abstract.
 * Derived classes **must** implement all the methods themselves.
 *
 * @private
 */
var DirectionInterface = /*#__PURE__*/function () {
  function DirectionInterface() {
    _classCallCheck(this, DirectionInterface);
  }
  _createClass(DirectionInterface, [{
    key: "abstract",
    value:
    /**
     * @ignore
     */
    function abstract() {
      throw new Error("Can't instantiate abstract class!");
    }

/**
     * This is a dummy call which is used to suppress the jsdoc errors of type:
     *
     *   "'param' is assigned a value but never used"
     *
     * @ignore
     */
  }, {
    key: "fake_use",
    value: function fake_use() {
      // Do nothing special
    }

/**
     * Type to use to translate dynamic curves to, in the case of hierarchical layout.
     * Dynamic curves do not work for these.
     *
     * The value should be perpendicular to the actual direction of the layout.
     *
     * @returns {string} Direction, either 'vertical' or 'horizontal'
     */
  }, {
    key: "curveType",
    value: function curveType() {
      return this.abstract();
    }

/**
     * Return the value of the coordinate that is not fixed for this direction.
     *
     * @param {Node} node The node to read
     * @returns {number} Value of the unfixed coordinate
     */
  }, {
    key: "getPosition",
    value: function getPosition(node) {
      this.fake_use(node);
      return this.abstract();
    }

/**
     * Set the value of the coordinate that is not fixed for this direction.
     *
     * @param {Node} node The node to adjust
     * @param {number} position
     * @param {number} [level] if specified, the hierarchy level that this node should be fixed to
     */
  }, {
    key: "setPosition",
    value: function setPosition(node, position) {
      var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;
      this.fake_use(node, position, level);
      this.abstract();
    }

/**
     * Get the width of a tree.
     *
     * A `tree` here is a subset of nodes within the network which are not connected to other nodes,
     * only among themselves. In essence, it is a sub-network.
     *
     * @param {number} index The index number of a tree
     * @returns {number} the width of a tree in the view coordinates
     */
  }, {
    key: "getTreeSize",
    value: function getTreeSize(index) {
      this.fake_use(index);
      return this.abstract();
    }

/**
     * Sort array of nodes on the unfixed coordinates.
     *
     * Note:** chrome has non-stable sorting implementation, which
     * has a tendency to change the order of the array items,
     * even if the custom sort function returns 0.
     *
     * For this reason, an external sort implementation is used,
     * which has the added benefit of being faster than the standard
     * platforms implementation. This has been verified on `node.js`,
     * `firefox` and `chrome` (all linux).
     *
     * @param {Array.<Node>} nodeArray array of nodes to sort
     */
  }, {
    key: "sort",
    value: function sort(nodeArray) {
      this.fake_use(nodeArray);
      this.abstract();
    }

/**
     * Assign the fixed coordinate of the node to the given level
     *
     * @param {Node} node The node to adjust
     * @param {number} level The level to fix to
     */
  }, {
    key: "fix",
    value: function fix(node, level) {
      this.fake_use(node, level);
      this.abstract();
    }

/**
     * Add an offset to the unfixed coordinate of the given node.
     *
     * @param {NodeId} nodeId Id of the node to adjust
     * @param {number} diff Offset to add to the unfixed coordinate
     */
  }, {
    key: "shift",
    value: function shift(nodeId, diff) {
      this.fake_use(nodeId, diff);
      this.abstract();
    }
  }]);
  return DirectionInterface;
}();
/**
 * Vertical Strategy
 *
 * Coordinate `y` is fixed on levels, coordinate `x` is unfixed.
 *
 * @augments DirectionInterface
 * @private
 */
var VerticalStrategy = /*#__PURE__*/function (_DirectionInterface) {
  _inherits(VerticalStrategy, _DirectionInterface);
  var _super = _createSuper(VerticalStrategy);
  /**
   * Constructor
   *
   * @param {object} layout reference to the parent LayoutEngine instance.
   */
  function VerticalStrategy(layout) {
    var _this;
    _classCallCheck(this, VerticalStrategy);
    _this = _super.call(this);
    _this.layout = layout;
    return _this;
  }

/** @inheritDoc */
  _createClass(VerticalStrategy, [{
    key: "curveType",
    value: function curveType() {
      return "horizontal";
    }

/** @inheritDoc */
  }, {
    key: "getPosition",
    value: function getPosition(node) {
      return node.x;
    }

/** @inheritDoc */
  }, {
    key: "setPosition",
    value: function setPosition(node, position) {
      var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;
      if (level !== undefined) {
        this.layout.hierarchical.addToOrdering(node, level);
      }
      node.x = position;
    }

/** @inheritDoc */
  }, {
    key: "getTreeSize",
    value: function getTreeSize(index) {
      var res = this.layout.hierarchical.getTreeSize(this.layout.body.nodes, index);
      return {
        min: res.min_x,
        max: res.max_x
      };
    }

/** @inheritDoc */
  }, {
    key: "sort",
    value: function sort(nodeArray) {
      timsortExports.sort(nodeArray, function (a, b) {
        return a.x - b.x;
      });
    }

/** @inheritDoc */
  }, {
    key: "fix",
    value: function fix(node, level) {
      node.y = this.layout.options.hierarchical.levelSeparation * level;
      node.options.fixed.y = true;
    }

/** @inheritDoc */
  }, {
    key: "shift",
    value: function shift(nodeId, diff) {
      this.layout.body.nodes[nodeId].x += diff;
    }
  }]);
  return VerticalStrategy;
}(DirectionInterface);
/**
 * Horizontal Strategy
 *
 * Coordinate `x` is fixed on levels, coordinate `y` is unfixed.
 *
 * @augments DirectionInterface
 * @private
 */
var HorizontalStrategy = /*#__PURE__*/function (_DirectionInterface2) {
  _inherits(HorizontalStrategy, _DirectionInterface2);
  var _super2 = _createSuper(HorizontalStrategy);
  /**
   * Constructor
   *
   * @param {object} layout reference to the parent LayoutEngine instance.
   */
  function HorizontalStrategy(layout) {
    var _this2;
    _classCallCheck(this, HorizontalStrategy);
    _this2 = _super2.call(this);
    _this2.layout = layout;
    return _this2;
  }

/** @inheritDoc */
  _createClass(HorizontalStrategy, [{
    key: "curveType",
    value: function curveType() {
      return "vertical";
    }

/** @inheritDoc */
  }, {
    key: "getPosition",
    value: function getPosition(node) {
      return node.y;
    }

/** @inheritDoc */
  }, {
    key: "sort",
    value: function sort(nodeArray) {
      timsortExports.sort(nodeArray, function (a, b) {
        return a.y - b.y;
      });
    }

/** @inheritDoc */
  }, {
    key: "fix",
    value: function fix(node, level) {
      node.x = this.layout.options.hierarchical.levelSeparation * level;
      node.options.fixed.x = true;
    }

/** @inheritDoc */
  }, {
    key: "shift",
    value: function shift(nodeId, diff) {
      this.layout.body.nodes[nodeId].y += diff;
    }
  }]);
  return HorizontalStrategy;
}(DirectionInterface);

var everyExports = {};
var every$3 = {
  get exports(){ return everyExports; },
  set exports(v){ everyExports = v; },
};

var $ = _export;
var $every = arrayIteration.every;
var arrayMethodIsStrict = arrayMethodIsStrict$6;

var STRICT_METHOD = arrayMethodIsStrict('every');

// `Array.prototype.every` method
// https://tc39.es/ecma262/#sec-array.prototype.every
$({ target: 'Array', proto: true, forced: !STRICT_METHOD }, {
  every: function every(callbackfn /* , thisArg */) {
    return $every(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
  }
});

var entryVirtual = entryVirtual$i;

var every$2 = entryVirtual('Array').every;

var isPrototypeOf = objectIsPrototypeOf;
var method = every$2;

var ArrayPrototype = Array.prototype;

var every$1 = function (it) {
  var own = it.every;
  return it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.every) ? method : own;
};

var parent = every$1;

var every = parent;

(function (module) {
	module.exports = every;
} (every$3));

var _everyInstanceProperty = /*@__PURE__*/getDefaultExportFromCjs$1(everyExports);

/**
 * There's a mix-up with terms in the code. Following are the formal definitions:
 *
 *   tree   - a strict hierarchical network, i.e. every node has at most one parent
 *   forest - a collection of trees. These distinct trees are thus not connected.
 *
 * So:
 * - in a network that is not a tree, there exist nodes with multiple parents.
 * - a network consisting of unconnected sub-networks, of which at least one
 *   is not a tree, is not a forest.
 *
 * In the code, the definitions are:
 *
 *   tree   - any disconnected sub-network, strict hierarchical or not.
 *   forest - a bunch of these sub-networks
 *
 * The difference between tree and not-tree is important in the code, notably within
 * to the block-shifting algorithm. The algorithm assumes formal trees and fails
 * for not-trees, often in a spectacular manner (search for 'exploding network' in the issues).
 *
 * In order to distinguish the definitions in the following code, the adjective 'formal' is
 * used. If 'formal' is absent, you must assume the non-formal definition.
 *
 * ----------------------------------------------------------------------------------
 * NOTES
 * =====
 *
 * A hierarchical layout is a different thing from a hierarchical network.
 * The layout is a way to arrange the nodes in the view; this can be done
 * on non-hierarchical networks as well. The converse is also possible.
 */

/**
 * Container for derived data on current network, relating to hierarchy.
 *
 * @private
 */
var HierarchicalStatus = /*#__PURE__*/function () {
  /**
   * @ignore
   */
  function HierarchicalStatus() {
    _classCallCheck(this, HierarchicalStatus);
    this.childrenReference = {}; // child id's per node id
    this.parentReference = {}; // parent id's per node id
    this.trees = {}; // tree id per node id; i.e. to which tree does given node id belong

this.distributionOrdering = {}; // The nodes per level, in the display order
    this.levels = {}; // hierarchy level per node id
    this.distributionIndex = {}; // The position of the node in the level sorting order, per node id.

this.isTree = false; // True if current network is a formal tree
    this.treeIndex = -1; // Highest tree id in current network.
  }

/**
   * Add the relation between given nodes to the current state.
   *
   * @param {Node.id} parentNodeId
   * @param {Node.id} childNodeId
   */
  _createClass(HierarchicalStatus, [{
    key: "addRelation",
    value: function addRelation(parentNodeId, childNodeId) {
      if (this.childrenReference[parentNodeId] === undefined) {
        this.childrenReference[parentNodeId] = [];
      }
      this.childrenReference[parentNodeId].push(childNodeId);
      if (this.parentReference[childNodeId] === undefined) {
        this.parentReference[childNodeId] = [];
      }
      this.parentReference[childNodeId].push(parentNodeId);
    }

/**
     * Check if the current state is for a formal tree or formal forest.
     *
     * This is the case if every node has at most one parent.
     *
     * Pre: parentReference init'ed properly for current network
     */
  }, {
    key: "checkIfTree",
    value: function checkIfTree() {
      for (var i in this.parentReference) {
        if (this.parentReference[i].length > 1) {
          this.isTree = false;
          return;
        }
      }
      this.isTree = true;
    }

/**
     * Return the number of separate trees in the current network.
     *
     * @returns {number}
     */
  }, {
    key: "numTrees",
    value: function numTrees() {
      return this.treeIndex + 1; // This assumes the indexes are assigned consecitively
    }

/**
     * Assign a tree id to a node
     *
     * @param {Node} node
     * @param {string|number} treeId
     */
  }, {
    key: "setTreeIndex",
    value: function setTreeIndex(node, treeId) {
      if (treeId === undefined) return; // Don't bother

if (this.trees[node.id] === undefined) {
        this.trees[node.id] = treeId;
        this.treeIndex = Math.max(treeId, this.treeIndex);
      }
    }

/**
     * Ensure level for given id is defined.
     *
     * Sets level to zero for given node id if not already present
     *
     * @param {Node.id} nodeId
     */
  }, {
    key: "ensureLevel",
    value: function ensureLevel(nodeId) {
      if (this.levels[nodeId] === undefined) {
        this.levels[nodeId] = 0;
      }
    }

/**
     * get the maximum level of a branch.
     *
     * TODO: Never entered; find a test case to test this!
     *
     * @param {Node.id} nodeId
     * @returns {number}
     */
  }, {
    key: "getMaxLevel",
    value: function getMaxLevel(nodeId) {
      var _this = this;
      var accumulator = {};
      var _getMaxLevel = function _getMaxLevel(nodeId) {
        if (accumulator[nodeId] !== undefined) {
          return accumulator[nodeId];
        }
        var level = _this.levels[nodeId];
        if (_this.childrenReference[nodeId]) {
          var children = _this.childrenReference[nodeId];
          if (children.length > 0) {
            for (var i = 0; i < children.length; i++) {
              level = Math.max(level, _getMaxLevel(children[i]));
            }
          }
        }
        accumulator[nodeId] = level;
        return level;
      };
      return _getMaxLevel(nodeId);
    }

/**
     *
     * @param {Node} nodeA
     * @param {Node} nodeB
     */
  }, {
    key: "levelDownstream",
    value: function levelDownstream(nodeA, nodeB) {
      if (this.levels[nodeB.id] === undefined) {
        // set initial level
        if (this.levels[nodeA.id] === undefined) {
          this.levels[nodeA.id] = 0;
        }
        // set level
        this.levels[nodeB.id] = this.levels[nodeA.id] + 1;
      }
    }

/**
     * Small util method to set the minimum levels of the nodes to zero.
     *
     * @param {Array.<Node>} nodes
     */
  }, {
    key: "setMinLevelToZero",
    value: function setMinLevelToZero(nodes) {
      var minLevel = 1e9;
      // get the minimum level
      for (var nodeId in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, nodeId)) {
          if (this.levels[nodeId] !== undefined) {
            minLevel = Math.min(this.levels[nodeId], minLevel);
          }
        }
      }

// subtract the minimum from the set so we have a range starting from 0
      for (var _nodeId in nodes) {
        if (Object.prototype.hasOwnProperty.call(nodes, _nodeId)) {
          if (this.levels[_nodeId] !== undefined) {
            this.levels[_nodeId] -= minLevel;
          }
        }
      }
    }

/**
     * Get the min and max xy-coordinates of a given tree
     *
     * @param {Array.<Node>} nodes
     * @param {number} index
     * @returns {{min_x: number, max_x: number, min_y: number, max_y: number}}
     */
  }, {
    key: "getTreeSize",
    value: function getTreeSize(nodes, index) {
      var min_x = 1e9;
      var max_x = -1e9;
      var min_y = 1e9;
      var max_y = -1e9;
      for (var nodeId in this.trees) {
        if (Object.prototype.hasOwnProperty.call(this.trees, nodeId)) {
          if (this.trees[nodeId] === index) {
            var node = nodes[nodeId];
            min_x = Math.min(node.x, min_x);
            max_x = Math.max(node.x, max_x);
            min_y = Math.min(node.y, min_y);
            max_y = Math.max(node.y, max_y);
          }
        }
      }
      return {
        min_x: min_x,
        max_x: max_x,
        min_y: min_y,
        max_y: max_y
      };
    }

/**
     * Check if two nodes have the same parent(s)
     *
     * @param {Node} node1
     * @param {Node} node2
     * @returns {boolean} true if the two nodes have a same ancestor node, false otherwise
     */
  }, {
    key: "hasSameParent",
    value: function hasSameParent(node1, node2) {
      var parents1 = this.parentReference[node1.id];
      var parents2 = this.parentReference[node2.id];
      if (parents1 === undefined || parents2 === undefined) {
        return false;
      }
      for (var i = 0; i < parents1.length; i++) {
        for (var j = 0; j < parents2.length; j++) {
          if (parents1[i] == parents2[j]) {
            return true;
          }
        }
      }
      return false;
    }

/**
     * Check if two nodes are in the same tree.
     *
     * @param {Node} node1
     * @param {Node} node2
     * @returns {boolean} true if this is so, false otherwise
     */
  }, {
    key: "inSameSubNetwork",
    value: function inSameSubNetwork(node1, node2) {
      return this.trees[node1.id] === this.trees[node2.id];
    }

/**
     * Get a list of the distinct levels in the current network
     *
     * @returns {Array}
     */
  }, {
    key: "getLevels",
    value: function getLevels() {
      return _Object$keys(this.distributionOrdering);
    }

/**
     * Add a node to the ordering per level
     *
     * @param {Node} node
     * @param {number} level
     */
  }, {
    key: "addToOrdering",
    value: function addToOrdering(node, level) {
      if (this.distributionOrdering[level] === undefined) {
        this.distributionOrdering[level] = [];
      }
      var isPresent = false;
      var curLevel = this.distributionOrdering[level];
      for (var n in curLevel) {
        //if (curLevel[n].id === node.id) {
        if (curLevel[n] === node) {
          isPresent = true;
          break;
        }
      }
      if (!isPresent) {
        this.distributionOrdering[level].push(node);
        this.distributionIndex[node.id] = this.distributionOrdering[level].length - 1;
      }
    }
  }]);
  return HierarchicalStatus;
}();
/**
 * The Layout Engine
 */
var LayoutEngine = /*#__PURE__*/function () {
  /**
   * @param {object} body
   */
  function LayoutEngine(body) {
    _classCallCheck(this, LayoutEngine);
    this.body = body;

// Make sure there always is some RNG because the setOptions method won't
    // set it unless there's a seed for it.
    this._resetRNG(Math.random() + ":" + _Date$now());
    this.setPhysics = false;
    this.options = {};
    this.optionsBackup = {
      physics: {}
    };
    this.defaultOptions = {
      randomSeed: undefined,
      improvedLayout: true,
      clusterThreshold: 150,
      hierarchical: {
        enabled: false,
        levelSeparation: 150,
        nodeSpacing: 100,
        treeSpacing: 200,
        blockShifting: true,
        edgeMinimization: true,
        parentCentralization: true,
        direction: "UD",
        // UD, DU, LR, RL
        sortMethod: "hubsize" // hubsize, directed
      }
    };

_Object$assign(this.options, this.defaultOptions);
    this.bindEventListeners();
  }

/**
   * Binds event listeners
   */
  _createClass(LayoutEngine, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this2 = this;
      this.body.emitter.on("_dataChanged", function () {
        _this2.setupHierarchicalLayout();
      });
      this.body.emitter.on("_dataLoaded", function () {
        _this2.layoutNetwork();
      });
      this.body.emitter.on("_resetHierarchicalLayout", function () {
        _this2.setupHierarchicalLayout();
      });
      this.body.emitter.on("_adjustEdgesForHierarchicalLayout", function () {
        if (_this2.options.hierarchical.enabled !== true) {
          return;
        }
        // get the type of static smooth curve in case it is required
        var type = _this2.direction.curveType();

// force all edges into static smooth curves.
        _this2.body.emitter.emit("_forceDisableDynamicCurves", type, false);
      });
    }

/**
     *
     * @param {object} options
     * @param {object} allOptions
     * @returns {object}
     */
  }, {
    key: "setOptions",
    value: function setOptions(options, allOptions) {
      if (options !== undefined) {
        var hierarchical = this.options.hierarchical;
        var prevHierarchicalState = hierarchical.enabled;
        selectiveDeepExtend(["randomSeed", "improvedLayout", "clusterThreshold"], this.options, options);
        mergeOptions(this.options, options, "hierarchical");
        if (options.randomSeed !== undefined) {
          this._resetRNG(options.randomSeed);
        }
        if (hierarchical.enabled === true) {
          if (prevHierarchicalState === true) {
            // refresh the overridden options for nodes and edges.
            this.body.emitter.emit("refresh", true);
          }

// make sure the level separation is the right way up
          if (hierarchical.direction === "RL" || hierarchical.direction === "DU") {
            if (hierarchical.levelSeparation > 0) {
              hierarchical.levelSeparation *= -1;
            }
          } else {
            if (hierarchical.levelSeparation < 0) {
              hierarchical.levelSeparation *= -1;
            }
          }
          this.setDirectionStrategy();
          this.body.emitter.emit("_resetHierarchicalLayout");
          // because the hierarchical system needs it's own physics and smooth curve settings,
          // we adapt the other options if needed.
          return this.adaptAllOptionsForHierarchicalLayout(allOptions);
        } else {
          if (prevHierarchicalState === true) {
            // refresh the overridden options for nodes and edges.
            this.body.emitter.emit("refresh");
            return deepExtend(allOptions, this.optionsBackup);
          }
        }
      }
      return allOptions;
    }

/**
     * Reset the random number generator with given seed.
     *
     * @param {any} seed - The seed that will be forwarded the the RNG.
     */
  }, {
    key: "_resetRNG",
    value: function _resetRNG(seed) {
      this.initialRandomSeed = seed;
      this._rng = Alea(this.initialRandomSeed);
    }

/**
     *
     * @param {object} allOptions
     * @returns {object}
     */
  }, {
    key: "adaptAllOptionsForHierarchicalLayout",
    value: function adaptAllOptionsForHierarchicalLayout(allOptions) {
      if (this.options.hierarchical.enabled === true) {
        var backupPhysics = this.optionsBackup.physics;

// set the physics
        if (allOptions.physics === undefined || allOptions.physics === true) {
          allOptions.physics = {
            enabled: backupPhysics.enabled === undefined ? true : backupPhysics.enabled,
            solver: "hierarchicalRepulsion"
          };
          backupPhysics.enabled = backupPhysics.enabled === undefined ? true : backupPhysics.enabled;
          backupPhysics.solver = backupPhysics.solver || "barnesHut";
        } else if (_typeof(allOptions.physics) === "object") {
          backupPhysics.enabled = allOptions.physics.enabled === undefined ? true : allOptions.physics.enabled;
          backupPhysics.solver = allOptions.physics.solver || "barnesHut";
          allOptions.physics.solver = "hierarchicalRepulsion";
        } else if (allOptions.physics !== false) {
          backupPhysics.solver = "barnesHut";
          allOptions.physics = {
            solver: "hierarchicalRepulsion"
          };
        }

// get the type of static smooth curve in case it is required
        var type = this.direction.curveType();

// disable smooth curves if nothing is defined. If smooth curves have been turned on,
        // turn them into static smooth curves.
        if (allOptions.edges === undefined) {
          this.optionsBackup.edges = {
            smooth: {
              enabled: true,
              type: "dynamic"
            }
          };
          allOptions.edges = {
            smooth: false
          };
        } else if (allOptions.edges.smooth === undefined) {
          this.optionsBackup.edges = {
            smooth: {
              enabled: true,
              type: "dynamic"
            }
          };
          allOptions.edges.smooth = false;
        } else {
          if (typeof allOptions.edges.smooth === "boolean") {
            this.optionsBackup.edges = {
              smooth: allOptions.edges.smooth
            };
            allOptions.edges.smooth = {
              enabled: allOptions.edges.smooth,
              type: type
            };
          } else {
            var smooth = allOptions.edges.smooth;

// allow custom types except for dynamic
            if (smooth.type !== undefined && smooth.type !== "dynamic") {
              type = smooth.type;
            }

// TODO: this is options merging; see if the standard routines can be used here.
            this.optionsBackup.edges = {
              smooth: {
                enabled: smooth.enabled === undefined ? true : smooth.enabled,
                type: smooth.type === undefined ? "dynamic" : smooth.type,
                roundness: smooth.roundness === undefined ? 0.5 : smooth.roundness,
                forceDirection: smooth.forceDirection === undefined ? false : smooth.forceDirection
              }
            };

// NOTE: Copying an object to self; this is basically setting defaults for undefined variables
            allOptions.edges.smooth = {
              enabled: smooth.enabled === undefined ? true : smooth.enabled,
              type: type,
              roundness: smooth.roundness === undefined ? 0.5 : smooth.roundness,
              forceDirection: smooth.forceDirection === undefined ? false : smooth.forceDirection
            };
          }
        }

// Force all edges into static smooth curves.
        // Only applies to edges that do not use the global options for smooth.
        this.body.emitter.emit("_forceDisableDynamicCurves", type);
      }
      return allOptions;
    }

/**
     *
     * @param {Array.<Node>} nodesArray
     */
  }, {
    key: "positionInitially",
    value: function positionInitially(nodesArray) {
      if (this.options.hierarchical.enabled !== true) {
        this._resetRNG(this.initialRandomSeed);
        var radius = nodesArray.length + 50;
        for (var i = 0; i < nodesArray.length; i++) {
          var node = nodesArray[i];
          var angle = 2 * Math.PI * this._rng();
          if (node.x === undefined) {
            node.x = radius * Math.cos(angle);
          }
          if (node.y === undefined) {
            node.y = radius * Math.sin(angle);
          }
        }
      }
    }

/**
     * Use Kamada Kawai to position nodes. This is quite a heavy algorithm so if there are a lot of nodes we
     * cluster them first to reduce the amount.
     */
  }, {
    key: "layoutNetwork",
    value: function layoutNetwork() {
      if (this.options.hierarchical.enabled !== true && this.options.improvedLayout === true) {
        var indices = this.body.nodeIndices;

// first check if we should Kamada Kawai to layout. The threshold is if less than half of the visible
        // nodes have predefined positions we use this.
        var positionDefined = 0;
        for (var i = 0; i < indices.length; i++) {
          var node = this.body.nodes[indices[i]];
          if (node.predefinedPosition === true) {
            positionDefined += 1;
          }
        }

// if less than half of the nodes have a predefined position we continue
        if (positionDefined < 0.5 * indices.length) {
          var MAX_LEVELS = 10;
          var level = 0;
          var clusterThreshold = this.options.clusterThreshold;

//
          // Define the options for the hidden cluster nodes
          // These options don't propagate outside the clustering phase.
          //
          // Some options are explicitly disabled, because they may be set in group or default node options.
          // The clusters are never displayed, so most explicit settings here serve as performance optimizations.
          //
          // The explicit setting of 'shape' is to avoid `shape: 'image'`; images are not passed to the hidden
          // cluster nodes, leading to an exception on creation.
          //
          // All settings here are performance related, except when noted otherwise.
          //
          var clusterOptions = {
            clusterNodeProperties: {
              shape: "ellipse",
              // Bugfix: avoid type 'image', no images supplied
              label: "",
              // avoid label handling
              group: "",
              // avoid group handling
              font: {
                multi: false
              } // avoid font propagation
            },

clusterEdgeProperties: {
              label: "",
              // avoid label handling
              font: {
                multi: false
              },
              // avoid font propagation
              smooth: {
                enabled: false // avoid drawing penalty for complex edges
              }
            }
          };

// if there are a lot of nodes, we cluster before we run the algorithm.
          // NOTE: this part fails to find clusters for large scale-free networks, which should
          //       be easily clusterable.
          // TODO: examine why this is so
          if (indices.length > clusterThreshold) {
            var startLength = indices.length;
            while (indices.length > clusterThreshold && level <= MAX_LEVELS) {
              //console.time("clustering")
              level += 1;
              var before = indices.length;
              // if there are many nodes we do a hubsize cluster
              if (level % 3 === 0) {
                this.body.modules.clustering.clusterBridges(clusterOptions);
              } else {
                this.body.modules.clustering.clusterOutliers(clusterOptions);
              }
              var after = indices.length;
              if (before == after && level % 3 !== 0) {
                this._declusterAll();
                this.body.emitter.emit("_layoutFailed");
                console.info("This network could not be positioned by this version of the improved layout algorithm." + " Please disable improvedLayout for better performance.");
                return;
              }
              //console.timeEnd("clustering")
              //console.log(before,level,after);
            }
            // increase the size of the edges
            this.body.modules.kamadaKawai.setOptions({
              springLength: Math.max(150, 2 * startLength)
            });
          }
          if (level > MAX_LEVELS) {
            console.info("The clustering didn't succeed within the amount of interations allowed," + " progressing with partial result.");
          }

// position the system for these nodes and edges
          this.body.modules.kamadaKawai.solve(indices, this.body.edgeIndices, true);

// shift to center point
          this._shiftToCenter();

// perturb the nodes a little bit to force the physics to kick in
          var offset = 70;
          for (var _i = 0; _i < indices.length; _i++) {
            // Only perturb the nodes that aren't fixed
            var _node = this.body.nodes[indices[_i]];
            if (_node.predefinedPosition === false) {
              _node.x += (0.5 - this._rng()) * offset;
              _node.y += (0.5 - this._rng()) * offset;
            }
          }

// uncluster all clusters
          this._declusterAll();

// reposition all bezier nodes.
          this.body.emitter.emit("_repositionBezierNodes");
        }
      }
    }

/**
     * Move all the nodes towards to the center so gravitational pull wil not move the nodes away from view
     *
     * @private
     */
  }, {
    key: "_shiftToCenter",
    value: function _shiftToCenter() {
      var range = NetworkUtil.getRangeCore(this.body.nodes, this.body.nodeIndices);
      var center = NetworkUtil.findCenter(range);
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var node = this.body.nodes[this.body.nodeIndices[i]];
        node.x -= center.x;
        node.y -= center.y;
      }
    }

/**
     * Expands all clusters
     *
     * @private
     */
  }, {
    key: "_declusterAll",
    value: function _declusterAll() {
      var clustersPresent = true;
      while (clustersPresent === true) {
        clustersPresent = false;
        for (var i = 0; i < this.body.nodeIndices.length; i++) {
          if (this.body.nodes[this.body.nodeIndices[i]].isCluster === true) {
            clustersPresent = true;
            this.body.modules.clustering.openCluster(this.body.nodeIndices[i], {}, false);
          }
        }
        if (clustersPresent === true) {
          this.body.emitter.emit("_dataChanged");
        }
      }
    }

/**
     *
     * @returns {number|*}
     */
  }, {
    key: "getSeed",
    value: function getSeed() {
      return this.initialRandomSeed;
    }

/**
     * This is the main function to layout the nodes in a hierarchical way.
     * It checks if the node details are supplied correctly
     *
     * @private
     */
  }, {
    key: "setupHierarchicalLayout",
    value: function setupHierarchicalLayout() {
      if (this.options.hierarchical.enabled === true && this.body.nodeIndices.length > 0) {
        // get the size of the largest hubs and check if the user has defined a level for a node.
        var node, nodeId;
        var definedLevel = false;
        var undefinedLevel = false;
        this.lastNodeOnLevel = {};
        this.hierarchical = new HierarchicalStatus();
        for (nodeId in this.body.nodes) {
          if (Object.prototype.hasOwnProperty.call(this.body.nodes, nodeId)) {
            node = this.body.nodes[nodeId];
            if (node.options.level !== undefined) {
              definedLevel = true;
              this.hierarchical.levels[nodeId] = node.options.level;
            } else {
              undefinedLevel = true;
            }
          }
        }

// if the user defined some levels but not all, alert and run without hierarchical layout
        if (undefinedLevel === true && definedLevel === true) {
          throw new Error("To use the hierarchical layout, nodes require either no predefined levels" + " or levels have to be defined for all nodes.");
        } else {
          // define levels if undefined by the users. Based on hubsize.
          if (undefinedLevel === true) {
            var sortMethod = this.options.hierarchical.sortMethod;
            if (sortMethod === "hubsize") {
              this._determineLevelsByHubsize();
            } else if (sortMethod === "directed") {
              this._determineLevelsDirected();
            } else if (sortMethod === "custom") {
              this._determineLevelsCustomCallback();
            }
          }

// fallback for cases where there are nodes but no edges
          for (var _nodeId2 in this.body.nodes) {
            if (Object.prototype.hasOwnProperty.call(this.body.nodes, _nodeId2)) {
              this.hierarchical.ensureLevel(_nodeId2);
            }
          }
          // check the distribution of the nodes per level.
          var distribution = this._getDistribution();

// get the parent children relations.
          this._generateMap();

// place the nodes on the canvas.
          this._placeNodesByHierarchy(distribution);

// condense the whitespace.
          this._condenseHierarchy();

// shift to center so gravity does not have to do much
          this._shiftToCenter();
        }
      }
    }

/**
     * @private
     */
  }, {
    key: "_condenseHierarchy",
    value: function _condenseHierarchy() {
      var _this3 = this;
      // Global var in this scope to define when the movement has stopped.
      var stillShifting = false;
      var branches = {};
      // first we have some methods to help shifting trees around.
      // the main method to shift the trees
      var shiftTrees = function shiftTrees() {
        var treeSizes = getTreeSizes();
        var shiftBy = 0;
        for (var i = 0; i < treeSizes.length - 1; i++) {
          var diff = treeSizes[i].max - treeSizes[i + 1].min;
          shiftBy += diff + _this3.options.hierarchical.treeSpacing;
          shiftTree(i + 1, shiftBy);
        }
      };

// shift a single tree by an offset
      var shiftTree = function shiftTree(index, offset) {
        var trees = _this3.hierarchical.trees;
        for (var nodeId in trees) {
          if (Object.prototype.hasOwnProperty.call(trees, nodeId)) {
            if (trees[nodeId] === index) {
              _this3.direction.shift(nodeId, offset);
            }
          }
        }
      };

// get the width of all trees
      var getTreeSizes = function getTreeSizes() {
        var treeWidths = [];
        for (var i = 0; i < _this3.hierarchical.numTrees(); i++) {
          treeWidths.push(_this3.direction.getTreeSize(i));
        }
        return treeWidths;
      };

// get a map of all nodes in this branch
      var getBranchNodes = function getBranchNodes(source, map) {
        if (map[source.id]) {
          return;
        }
        map[source.id] = true;
        if (_this3.hierarchical.childrenReference[source.id]) {
          var children = _this3.hierarchical.childrenReference[source.id];
          if (children.length > 0) {
            for (var i = 0; i < children.length; i++) {
              getBranchNodes(_this3.body.nodes[children[i]], map);
            }
          }
        }
      };

// get a min max width as well as the maximum movement space it has on either sides
      // we use min max terminology because width and height can interchange depending on the direction of the layout
      var getBranchBoundary = function getBranchBoundary(branchMap) {
        var maxLevel = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1e9;
        var minSpace = 1e9;
        var maxSpace = 1e9;
        var min = 1e9;
        var max = -1e9;
        for (var branchNode in branchMap) {
          if (Object.prototype.hasOwnProperty.call(branchMap, branchNode)) {
            var node = _this3.body.nodes[branchNode];
            var level = _this3.hierarchical.levels[node.id];
            var position = _this3.direction.getPosition(node);

// get the space around the node.
            var _this3$_getSpaceAroun = _this3._getSpaceAroundNode(node, branchMap),
              _this3$_getSpaceAroun2 = _slicedToArray(_this3$_getSpaceAroun, 2),
              minSpaceNode = _this3$_getSpaceAroun2[0],
              maxSpaceNode = _this3$_getSpaceAroun2[1];
            minSpace = Math.min(minSpaceNode, minSpace);
            maxSpace = Math.min(maxSpaceNode, maxSpace);

// the width is only relevant for the levels two nodes have in common. This is why we filter on this.
            if (level <= maxLevel) {
              min = Math.min(position, min);
              max = Math.max(position, max);
            }
          }
        }
        return [min, max, minSpace, maxSpace];
      };

// check what the maximum level is these nodes have in common.
      var getCollisionLevel = function getCollisionLevel(node1, node2) {
        var maxLevel1 = _this3.hierarchical.getMaxLevel(node1.id);
        var maxLevel2 = _this3.hierarchical.getMaxLevel(node2.id);
        return Math.min(maxLevel1, maxLevel2);
      };

/**
       * Condense elements. These can be nodes or branches depending on the callback.
       *
       * @param {Function} callback
       * @param {Array.<number>} levels
       * @param {*} centerParents
       */
      var shiftElementsCloser = function shiftElementsCloser(callback, levels, centerParents) {
        var hier = _this3.hierarchical;
        for (var i = 0; i < levels.length; i++) {
          var level = levels[i];
          var levelNodes = hier.distributionOrdering[level];
          if (levelNodes.length > 1) {
            for (var j = 0; j < levelNodes.length - 1; j++) {
              var node1 = levelNodes[j];
              var node2 = levelNodes[j + 1];

// NOTE: logic maintained as it was; if nodes have same ancestor,
              //       then of course they are in the same sub-network.
              if (hier.hasSameParent(node1, node2) && hier.inSameSubNetwork(node1, node2)) {
                callback(node1, node2, centerParents);
              }
            }
          }
        }
      };

// callback for shifting branches
      var branchShiftCallback = function branchShiftCallback(node1, node2) {
        var centerParent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        //window.CALLBACKS.push(() => {
        var pos1 = _this3.direction.getPosition(node1);
        var pos2 = _this3.direction.getPosition(node2);
        var diffAbs = Math.abs(pos2 - pos1);
        var nodeSpacing = _this3.options.hierarchical.nodeSpacing;
        //console.log("NOW CHECKING:", node1.id, node2.id, diffAbs);
        if (diffAbs > nodeSpacing) {
          var branchNodes1 = {};
          var branchNodes2 = {};
          getBranchNodes(node1, branchNodes1);
          getBranchNodes(node2, branchNodes2);

// check the largest distance between the branches
          var maxLevel = getCollisionLevel(node1, node2);
          var branchNodeBoundary1 = getBranchBoundary(branchNodes1, maxLevel);
          var branchNodeBoundary2 = getBranchBoundary(branchNodes2, maxLevel);
          var max1 = branchNodeBoundary1[1];
          var min2 = branchNodeBoundary2[0];
          var minSpace2 = branchNodeBoundary2[2];

//console.log(node1.id, getBranchBoundary(branchNodes1, maxLevel), node2.id,
          //            getBranchBoundary(branchNodes2, maxLevel), maxLevel);
          var diffBranch = Math.abs(max1 - min2);
          if (diffBranch > nodeSpacing) {
            var offset = max1 - min2 + nodeSpacing;
            if (offset < -minSpace2 + nodeSpacing) {
              offset = -minSpace2 + nodeSpacing;
              //console.log("RESETTING OFFSET", max1 - min2 + this.options.hierarchical.nodeSpacing, -minSpace2, offset);
            }

if (offset < 0) {
              //console.log("SHIFTING", node2.id, offset);
              _this3._shiftBlock(node2.id, offset);
              stillShifting = true;
              if (centerParent === true) _this3._centerParent(node2);
            }
          }
        }
        //this.body.emitter.emit("_redraw");})
      };

var minimizeEdgeLength = function minimizeEdgeLength(iterations, node) {
        //window.CALLBACKS.push(() => {
        //  console.log("ts",node.id);
        var nodeId = node.id;
        var allEdges = node.edges;
        var nodeLevel = _this3.hierarchical.levels[node.id];

// gather constants
        var C2 = _this3.options.hierarchical.levelSeparation * _this3.options.hierarchical.levelSeparation;
        var referenceNodes = {};
        var aboveEdges = [];
        for (var i = 0; i < allEdges.length; i++) {
          var edge = allEdges[i];
          if (edge.toId != edge.fromId) {
            var otherNode = edge.toId == nodeId ? edge.from : edge.to;
            referenceNodes[allEdges[i].id] = otherNode;
            if (_this3.hierarchical.levels[otherNode.id] < nodeLevel) {
              aboveEdges.push(edge);
            }
          }
        }

// differentiated sum of lengths based on only moving one node over one axis
        var getFx = function getFx(point, edges) {
          var sum = 0;
          for (var _i2 = 0; _i2 < edges.length; _i2++) {
            if (referenceNodes[edges[_i2].id] !== undefined) {
              var a = _this3.direction.getPosition(referenceNodes[edges[_i2].id]) - point;
              sum += a / Math.sqrt(a * a + C2);
            }
          }
          return sum;
        };

// doubly differentiated sum of lengths based on only moving one node over one axis
        var getDFx = function getDFx(point, edges) {
          var sum = 0;
          for (var _i3 = 0; _i3 < edges.length; _i3++) {
            if (referenceNodes[edges[_i3].id] !== undefined) {
              var a = _this3.direction.getPosition(referenceNodes[edges[_i3].id]) - point;
              sum -= C2 * Math.pow(a * a + C2, -1.5);
            }
          }
          return sum;
        };
        var getGuess = function getGuess(iterations, edges) {
          var guess = _this3.direction.getPosition(node);
          // Newton's method for optimization
          var guessMap = {};
          for (var _i4 = 0; _i4 < iterations; _i4++) {
            var fx = getFx(guess, edges);
            var dfx = getDFx(guess, edges);

// we limit the movement to avoid instability.
            var limit = 40;
            var ratio = Math.max(-limit, Math.min(limit, Math.round(fx / dfx)));
            guess = guess - ratio;
            // reduce duplicates
            if (guessMap[guess] !== undefined) {
              break;
            }
            guessMap[guess] = _i4;
          }
          return guess;
        };
        var moveBranch = function moveBranch(guess) {
          // position node if there is space
          var nodePosition = _this3.direction.getPosition(node);

// check movable area of the branch
          if (branches[node.id] === undefined) {
            var branchNodes = {};
            getBranchNodes(node, branchNodes);
            branches[node.id] = branchNodes;
          }
          var branchBoundary = getBranchBoundary(branches[node.id]);
          var minSpaceBranch = branchBoundary[2];
          var maxSpaceBranch = branchBoundary[3];
          var diff = guess - nodePosition;

// check if we are allowed to move the node:
          var branchOffset = 0;
          if (diff > 0) {
            branchOffset = Math.min(diff, maxSpaceBranch - _this3.options.hierarchical.nodeSpacing);
          } else if (diff < 0) {
            branchOffset = -Math.min(-diff, minSpaceBranch - _this3.options.hierarchical.nodeSpacing);
          }
          if (branchOffset != 0) {
            //console.log("moving branch:",branchOffset, maxSpaceBranch, minSpaceBranch)
            _this3._shiftBlock(node.id, branchOffset);
            //this.body.emitter.emit("_redraw");
            stillShifting = true;
          }
        };
        var moveNode = function moveNode(guess) {
          var nodePosition = _this3.direction.getPosition(node);

// position node if there is space
          var _this3$_getSpaceAroun3 = _this3._getSpaceAroundNode(node),
            _this3$_getSpaceAroun4 = _slicedToArray(_this3$_getSpaceAroun3, 2),
            minSpace = _this3$_getSpaceAroun4[0],
            maxSpace = _this3$_getSpaceAroun4[1];
          var diff = guess - nodePosition;
          // check if we are allowed to move the node:
          var newPosition = nodePosition;
          if (diff > 0) {
            newPosition = Math.min(nodePosition + (maxSpace - _this3.options.hierarchical.nodeSpacing), guess);
          } else if (diff < 0) {
            newPosition = Math.max(nodePosition - (minSpace - _this3.options.hierarchical.nodeSpacing), guess);
          }
          if (newPosition !== nodePosition) {
            //console.log("moving Node:",diff, minSpace, maxSpace);
            _this3.direction.setPosition(node, newPosition);
            //this.body.emitter.emit("_redraw");
            stillShifting = true;
          }
        };
        var guess = getGuess(iterations, aboveEdges);
        moveBranch(guess);
        guess = getGuess(iterations, allEdges);
        moveNode(guess);
        //})
      };

// method to remove whitespace between branches. Because we do bottom up, we can center the parents.
      var minimizeEdgeLengthBottomUp = function minimizeEdgeLengthBottomUp(iterations) {
        var levels = _this3.hierarchical.getLevels();
        levels = _reverseInstanceProperty(levels).call(levels);
        for (var i = 0; i < iterations; i++) {
          stillShifting = false;
          for (var j = 0; j < levels.length; j++) {
            var level = levels[j];
            var levelNodes = _this3.hierarchical.distributionOrdering[level];
            for (var k = 0; k < levelNodes.length; k++) {
              minimizeEdgeLength(1000, levelNodes[k]);
            }
          }
          if (stillShifting !== true) {
            //console.log("FINISHED minimizeEdgeLengthBottomUp IN " + i);
            break;
          }
        }
      };

// method to remove whitespace between branches. Because we do bottom up, we can center the parents.
      var shiftBranchesCloserBottomUp = function shiftBranchesCloserBottomUp(iterations) {
        var levels = _this3.hierarchical.getLevels();
        levels = _reverseInstanceProperty(levels).call(levels);
        for (var i = 0; i < iterations; i++) {
          stillShifting = false;
          shiftElementsCloser(branchShiftCallback, levels, true);
          if (stillShifting !== true) {
            //console.log("FINISHED shiftBranchesCloserBottomUp IN " + (i+1));
            break;
          }
        }
      };

// center all parents
      var centerAllParents = function centerAllParents() {
        for (var nodeId in _this3.body.nodes) {
          if (Object.prototype.hasOwnProperty.call(_this3.body.nodes, nodeId)) _this3._centerParent(_this3.body.nodes[nodeId]);
        }
      };

// center all parents
      var centerAllParentsBottomUp = function centerAllParentsBottomUp() {
        var levels = _this3.hierarchical.getLevels();
        levels = _reverseInstanceProperty(levels).call(levels);
        for (var i = 0; i < levels.length; i++) {
          var level = levels[i];
          var levelNodes = _this3.hierarchical.distributionOrdering[level];
          for (var j = 0; j < levelNodes.length; j++) {
            _this3._centerParent(levelNodes[j]);
          }
        }
      };

// the actual work is done here.
      if (this.options.hierarchical.blockShifting === true) {
        shiftBranchesCloserBottomUp(5);
        centerAllParents();
      }

// minimize edge length
      if (this.options.hierarchical.edgeMinimization === true) {
        minimizeEdgeLengthBottomUp(20);
      }
      if (this.options.hierarchical.parentCentralization === true) {
        centerAllParentsBottomUp();
      }
      shiftTrees();
    }

/**
     * This gives the space around the node. IF a map is supplied, it will only check against nodes NOT in the map.
     * This is used to only get the distances to nodes outside of a branch.
     *
     * @param {Node} node
     * @param {{Node.id: vis.Node}} map
     * @returns {number[]}
     * @private
     */
  }, {
    key: "_getSpaceAroundNode",
    value: function _getSpaceAroundNode(node, map) {
      var useMap = true;
      if (map === undefined) {
        useMap = false;
      }
      var level = this.hierarchical.levels[node.id];
      if (level !== undefined) {
        var index = this.hierarchical.distributionIndex[node.id];
        var position = this.direction.getPosition(node);
        var ordering = this.hierarchical.distributionOrdering[level];
        var minSpace = 1e9;
        var maxSpace = 1e9;
        if (index !== 0) {
          var prevNode = ordering[index - 1];
          if (useMap === true && map[prevNode.id] === undefined || useMap === false) {
            var prevPos = this.direction.getPosition(prevNode);
            minSpace = position - prevPos;
          }
        }
        if (index != ordering.length - 1) {
          var nextNode = ordering[index + 1];
          if (useMap === true && map[nextNode.id] === undefined || useMap === false) {
            var nextPos = this.direction.getPosition(nextNode);
            maxSpace = Math.min(maxSpace, nextPos - position);
          }
        }
        return [minSpace, maxSpace];
      } else {
        return [0, 0];
      }
    }

/**
     * We use this method to center a parent node and check if it does not cross other nodes when it does.
     *
     * @param {Node} node
     * @private
     */
  }, {
    key: "_centerParent",
    value: function _centerParent(node) {
      if (this.hierarchical.parentReference[node.id]) {
        var parents = this.hierarchical.parentReference[node.id];
        for (var i = 0; i < parents.length; i++) {
          var parentId = parents[i];
          var parentNode = this.body.nodes[parentId];
          var children = this.hierarchical.childrenReference[parentId];
          if (children !== undefined) {
            // get the range of the children
            var newPosition = this._getCenterPosition(children);
            var position = this.direction.getPosition(parentNode);
            var _this$_getSpaceAround = this._getSpaceAroundNode(parentNode),
              _this$_getSpaceAround2 = _slicedToArray(_this$_getSpaceAround, 2),
              minSpace = _this$_getSpaceAround2[0],
              maxSpace = _this$_getSpaceAround2[1];
            var diff = position - newPosition;
            if (diff < 0 && Math.abs(diff) < maxSpace - this.options.hierarchical.nodeSpacing || diff > 0 && Math.abs(diff) < minSpace - this.options.hierarchical.nodeSpacing) {
              this.direction.setPosition(parentNode, newPosition);
            }
          }
        }
      }
    }

/**
     * This function places the nodes on the canvas based on the hierarchial distribution.
     *
     * @param {object} distribution | obtained by the function this._getDistribution()
     * @private
     */
  }, {
    key: "_placeNodesByHierarchy",
    value: function _placeNodesByHierarchy(distribution) {
      this.positionedNodes = {};
      // start placing all the level 0 nodes first. Then recursively position their branches.
      for (var level in distribution) {
        if (Object.prototype.hasOwnProperty.call(distribution, level)) {
          var _context;
          // sort nodes in level by position:
          var nodeArray = _Object$keys(distribution[level]);
          nodeArray = this._indexArrayToNodes(nodeArray);
          _sortInstanceProperty(_context = this.direction).call(_context, nodeArray);
          var handledNodeCount = 0;
          for (var i = 0; i < nodeArray.length; i++) {
            var node = nodeArray[i];
            if (this.positionedNodes[node.id] === undefined) {
              var spacing = this.options.hierarchical.nodeSpacing;
              var pos = spacing * handledNodeCount;
              // We get the X or Y values we need and store them in pos and previousPos.
              // The get and set make sure we get X or Y
              if (handledNodeCount > 0) {
                pos = this.direction.getPosition(nodeArray[i - 1]) + spacing;
              }
              this.direction.setPosition(node, pos, level);
              this._validatePositionAndContinue(node, level, pos);
              handledNodeCount++;
            }
          }
        }
      }
    }

/**
     * This is a recursively called function to enumerate the branches from the largest hubs and place the nodes
     * on a X position that ensures there will be no overlap.
     *
     * @param {Node.id} parentId
     * @param {number} parentLevel
     * @private
     */
  }, {
    key: "_placeBranchNodes",
    value: function _placeBranchNodes(parentId, parentLevel) {
      var _context2;
      var childRef = this.hierarchical.childrenReference[parentId];

// if this is not a parent, cancel the placing. This can happen with multiple parents to one child.
      if (childRef === undefined) {
        return;
      }

// get a list of childNodes
      var childNodes = [];
      for (var i = 0; i < childRef.length; i++) {
        childNodes.push(this.body.nodes[childRef[i]]);
      }

// use the positions to order the nodes.
      _sortInstanceProperty(_context2 = this.direction).call(_context2, childNodes);

// position the childNodes
      for (var _i5 = 0; _i5 < childNodes.length; _i5++) {
        var childNode = childNodes[_i5];
        var childNodeLevel = this.hierarchical.levels[childNode.id];
        // check if the child node is below the parent node and if it has already been positioned.
        if (childNodeLevel > parentLevel && this.positionedNodes[childNode.id] === undefined) {
          // get the amount of space required for this node. If parent the width is based on the amount of children.
          var spacing = this.options.hierarchical.nodeSpacing;
          var pos = void 0;

// we get the X or Y values we need and store them in pos and previousPos.
          // The get and set make sure we get X or Y
          if (_i5 === 0) {
            pos = this.direction.getPosition(this.body.nodes[parentId]);
          } else {
            pos = this.direction.getPosition(childNodes[_i5 - 1]) + spacing;
          }
          this.direction.setPosition(childNode, pos, childNodeLevel);
          this._validatePositionAndContinue(childNode, childNodeLevel, pos);
        } else {
          return;
        }
      }

// center the parent nodes.
      var center = this._getCenterPosition(childNodes);
      this.direction.setPosition(this.body.nodes[parentId], center, parentLevel);
    }

/**
     * This method checks for overlap and if required shifts the branch. It also keeps records of positioned nodes.
     * Finally it will call _placeBranchNodes to place the branch nodes.
     *
     * @param {Node} node
     * @param {number} level
     * @param {number} pos
     * @private
     */
  }, {
    key: "_validatePositionAndContinue",
    value: function _validatePositionAndContinue(node, level, pos) {
      // This method only works for formal trees and formal forests
      // Early exit if this is not the case
      if (!this.hierarchical.isTree) return;

// if overlap has been detected, we shift the branch
      if (this.lastNodeOnLevel[level] !== undefined) {
        var previousPos = this.direction.getPosition(this.body.nodes[this.lastNodeOnLevel[level]]);
        if (pos - previousPos < this.options.hierarchical.nodeSpacing) {
          var diff = previousPos + this.options.hierarchical.nodeSpacing - pos;
          var sharedParent = this._findCommonParent(this.lastNodeOnLevel[level], node.id);
          this._shiftBlock(sharedParent.withChild, diff);
        }
      }
      this.lastNodeOnLevel[level] = node.id; // store change in position.
      this.positionedNodes[node.id] = true;
      this._placeBranchNodes(node.id, level);
    }

/**
     * Receives an array with node indices and returns an array with the actual node references.
     * Used for sorting based on node properties.
     *
     * @param {Array.<Node.id>} idArray
     * @returns {Array.<Node>}
     */
  }, {
    key: "_indexArrayToNodes",
    value: function _indexArrayToNodes(idArray) {
      var array = [];
      for (var i = 0; i < idArray.length; i++) {
        array.push(this.body.nodes[idArray[i]]);
      }
      return array;
    }

/**
     * This function get the distribution of levels based on hubsize
     *
     * @returns {object}
     * @private
     */
  }, {
    key: "_getDistribution",
    value: function _getDistribution() {
      var distribution = {};
      var nodeId, node;

// we fix Y because the hierarchy is vertical,
      // we fix X so we do not give a node an x position for a second time.
      // the fix of X is removed after the x value has been set.
      for (nodeId in this.body.nodes) {
        if (Object.prototype.hasOwnProperty.call(this.body.nodes, nodeId)) {
          node = this.body.nodes[nodeId];
          var level = this.hierarchical.levels[nodeId] === undefined ? 0 : this.hierarchical.levels[nodeId];
          this.direction.fix(node, level);
          if (distribution[level] === undefined) {
            distribution[level] = {};
          }
          distribution[level][nodeId] = node;
        }
      }
      return distribution;
    }

/**
     * Return the active (i.e. visible) edges for this node
     *
     * @param {Node} node
     * @returns {Array.<vis.Edge>} Array of edge instances
     * @private
     */
  }, {
    key: "_getActiveEdges",
    value: function _getActiveEdges(node) {
      var _this4 = this;
      var result = [];
      forEach$1(node.edges, function (edge) {
        var _context3;
        if (_indexOfInstanceProperty(_context3 = _this4.body.edgeIndices).call(_context3, edge.id) !== -1) {
          result.push(edge);
        }
      });
      return result;
    }

/**
     * Get the hubsizes for all active nodes.
     *
     * @returns {number}
     * @private
     */
  }, {
    key: "_getHubSizes",
    value: function _getHubSizes() {
      var _this5 = this;
      var hubSizes = {};
      var nodeIds = this.body.nodeIndices;
      forEach$1(nodeIds, function (nodeId) {
        var node = _this5.body.nodes[nodeId];
        var hubSize = _this5._getActiveEdges(node).length;
        hubSizes[hubSize] = true;
      });

// Make an array of the size sorted descending
      var result = [];
      forEach$1(hubSizes, function (size) {
        result.push(Number(size));
      });
      _sortInstanceProperty(TimSort$1).call(TimSort$1, result, function (a, b) {
        return b - a;
      });
      return result;
    }

/**
     * this function allocates nodes in levels based on the recursive branching from the largest hubs.
     *
     * @private
     */
  }, {
    key: "_determineLevelsByHubsize",
    value: function _determineLevelsByHubsize() {
      var _this6 = this;
      var levelDownstream = function levelDownstream(nodeA, nodeB) {
        _this6.hierarchical.levelDownstream(nodeA, nodeB);
      };
      var hubSizes = this._getHubSizes();
      var _loop = function _loop() {
        var hubSize = hubSizes[i];
        if (hubSize === 0) return "break";
        forEach$1(_this6.body.nodeIndices, function (nodeId) {
          var node = _this6.body.nodes[nodeId];
          if (hubSize === _this6._getActiveEdges(node).length) {
            _this6._crawlNetwork(levelDownstream, nodeId);
          }
        });
      };
      for (var i = 0; i < hubSizes.length; ++i) {
        var _ret = _loop();
        if (_ret === "break") break;
      }
    }

/**
     * TODO: release feature
     * TODO: Determine if this feature is needed at all
     *
     * @private
     */
  }, {
    key: "_determineLevelsCustomCallback",
    value: function _determineLevelsCustomCallback() {
      var _this7 = this;
      var minLevel = 100000;

// TODO: this should come from options.
      // eslint-disable-next-line no-unused-vars -- This should eventually be implemented with these parameters used.
      var customCallback = function customCallback(nodeA, nodeB, edge) {};

// TODO: perhaps move to HierarchicalStatus.
      //       But I currently don't see the point, this method is not used.
      var levelByDirection = function levelByDirection(nodeA, nodeB, edge) {
        var levelA = _this7.hierarchical.levels[nodeA.id];
        // set initial level
        if (levelA === undefined) {
          levelA = _this7.hierarchical.levels[nodeA.id] = minLevel;
        }
        var diff = customCallback(NetworkUtil.cloneOptions(nodeA, "node"), NetworkUtil.cloneOptions(nodeB, "node"), NetworkUtil.cloneOptions(edge, "edge"));
        _this7.hierarchical.levels[nodeB.id] = levelA + diff;
      };
      this._crawlNetwork(levelByDirection);
      this.hierarchical.setMinLevelToZero(this.body.nodes);
    }

/**
     * Allocate nodes in levels based on the direction of the edges.
     *
     * @private
     */
  }, {
    key: "_determineLevelsDirected",
    value: function _determineLevelsDirected() {
      var _context4,
        _this8 = this;
      var nodes = _reduceInstanceProperty(_context4 = this.body.nodeIndices).call(_context4, function (acc, id) {
        acc.set(id, _this8.body.nodes[id]);
        return acc;
      }, new _Map());
      if (this.options.hierarchical.shakeTowards === "roots") {
        this.hierarchical.levels = fillLevelsByDirectionRoots(nodes);
      } else {
        this.hierarchical.levels = fillLevelsByDirectionLeaves(nodes);
      }
      this.hierarchical.setMinLevelToZero(this.body.nodes);
    }

/**
     * Update the bookkeeping of parent and child.
     *
     * @private
     */
  }, {
    key: "_generateMap",
    value: function _generateMap() {
      var _this9 = this;
      var fillInRelations = function fillInRelations(parentNode, childNode) {
        if (_this9.hierarchical.levels[childNode.id] > _this9.hierarchical.levels[parentNode.id]) {
          _this9.hierarchical.addRelation(parentNode.id, childNode.id);
        }
      };
      this._crawlNetwork(fillInRelations);
      this.hierarchical.checkIfTree();
    }

/**
     * Crawl over the entire network and use a callback on each node couple that is connected to each other.
     *
     * @param {Function} [callback=function(){}]          | will receive nodeA, nodeB and the connecting edge. A and B are distinct.
     * @param {Node.id} startingNodeId
     * @private
     */
  }, {
    key: "_crawlNetwork",
    value: function _crawlNetwork() {
      var _this10 = this;
      var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
      var startingNodeId = arguments.length > 1 ? arguments[1] : undefined;
      var progress = {};
      var crawler = function crawler(node, tree) {
        if (progress[node.id] === undefined) {
          _this10.hierarchical.setTreeIndex(node, tree);
          progress[node.id] = true;
          var childNode;
          var edges = _this10._getActiveEdges(node);
          for (var i = 0; i < edges.length; i++) {
            var edge = edges[i];
            if (edge.connected === true) {
              if (edge.toId == node.id) {
                // Not '===' because id's can be string and numeric
                childNode = edge.from;
              } else {
                childNode = edge.to;
              }
              if (node.id != childNode.id) {
                // Not '!==' because id's can be string and numeric
                callback(node, childNode, edge);
                crawler(childNode, tree);
              }
            }
          }
        }
      };
      if (startingNodeId === undefined) {
        // Crawl over all nodes
        var treeIndex = 0; // Serves to pass a unique id for the current distinct tree

for (var i = 0; i < this.body.nodeIndices.length; i++) {
          var nodeId = this.body.nodeIndices[i];
          if (progress[nodeId] === undefined) {
            var node = this.body.nodes[nodeId];
            crawler(node, treeIndex);
            treeIndex += 1;
          }
        }
      } else {
        // Crawl from the given starting node
        var _node2 = this.body.nodes[startingNodeId];
        if (_node2 === undefined) {
          console.error("Node not found:", startingNodeId);
          return;
        }
        crawler(_node2);
      }
    }

/**
     * Shift a branch a certain distance
     *
     * @param {Node.id} parentId
     * @param {number} diff
     * @private
     */
  }, {
    key: "_shiftBlock",
    value: function _shiftBlock(parentId, diff) {
      var _this11 = this;
      var progress = {};
      var shifter = function shifter(parentId) {
        if (progress[parentId]) {
          return;
        }
        progress[parentId] = true;
        _this11.direction.shift(parentId, diff);
        var childRef = _this11.hierarchical.childrenReference[parentId];
        if (childRef !== undefined) {
          for (var i = 0; i < childRef.length; i++) {
            shifter(childRef[i]);
          }
        }
      };
      shifter(parentId);
    }

/**
     * Find a common parent between branches.
     *
     * @param {Node.id} childA
     * @param {Node.id} childB
     * @returns {{foundParent, withChild}}
     * @private
     */
  }, {
    key: "_findCommonParent",
    value: function _findCommonParent(childA, childB) {
      var _this12 = this;
      var parents = {};
      var iterateParents = function iterateParents(parents, child) {
        var parentRef = _this12.hierarchical.parentReference[child];
        if (parentRef !== undefined) {
          for (var i = 0; i < parentRef.length; i++) {
            var parent = parentRef[i];
            parents[parent] = true;
            iterateParents(parents, parent);
          }
        }
      };
      var findParent = function findParent(parents, child) {
        var parentRef = _this12.hierarchical.parentReference[child];
        if (parentRef !== undefined) {
          for (var i = 0; i < parentRef.length; i++) {
            var parent = parentRef[i];
            if (parents[parent] !== undefined) {
              return {
                foundParent: parent,
                withChild: child
              };
            }
            var branch = findParent(parents, parent);
            if (branch.foundParent !== null) {
              return branch;
            }
          }
        }
        return {
          foundParent: null,
          withChild: child
        };
      };
      iterateParents(parents, childA);
      return findParent(parents, childB);
    }

/**
     * Set the strategy pattern for handling the coordinates given the current direction.
     *
     * The individual instances contain all the operations and data specific to a layout direction.
     *
     * @param {Node} node
     * @param {{x: number, y: number}} position
     * @param {number} level
     * @param {boolean} [doNotUpdate=false]
     * @private
     */
  }, {
    key: "setDirectionStrategy",
    value: function setDirectionStrategy() {
      var isVertical = this.options.hierarchical.direction === "UD" || this.options.hierarchical.direction === "DU";
      if (isVertical) {
        this.direction = new VerticalStrategy(this);
      } else {
        this.direction = new HorizontalStrategy(this);
      }
    }

/**
     * Determine the center position of a branch from the passed list of child nodes
     *
     * This takes into account the positions of all the child nodes.
     *
     * @param {Array.<Node|vis.Node.id>} childNodes  Array of either child nodes or node id's
     * @returns {number}
     * @private
     */
  }, {
    key: "_getCenterPosition",
    value: function _getCenterPosition(childNodes) {
      var minPos = 1e9;
      var maxPos = -1e9;
      for (var i = 0; i < childNodes.length; i++) {
        var childNode = void 0;
        if (childNodes[i].id !== undefined) {
          childNode = childNodes[i];
        } else {
          var childNodeId = childNodes[i];
          childNode = this.body.nodes[childNodeId];
        }
        var position = this.direction.getPosition(childNode);
        minPos = Math.min(minPos, position);
        maxPos = Math.max(maxPos, position);
      }
      return 0.5 * (minPos + maxPos);
    }
  }]);
  return LayoutEngine;
}();

/**
 * Clears the toolbar div element of children
 *
 * @private
 */
var ManipulationSystem = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {Canvas} canvas
   * @param {SelectionHandler} selectionHandler
   * @param {InteractionHandler} interactionHandler
   */
  function ManipulationSystem(body, canvas, selectionHandler, interactionHandler) {
    var _this = this,
      _context,
      _context2;
    _classCallCheck(this, ManipulationSystem);
    this.body = body;
    this.canvas = canvas;
    this.selectionHandler = selectionHandler;
    this.interactionHandler = interactionHandler;
    this.editMode = false;
    this.manipulationDiv = undefined;
    this.editModeDiv = undefined;
    this.closeDiv = undefined;
    this._domEventListenerCleanupQueue = [];
    this.temporaryUIFunctions = {};
    this.temporaryEventFunctions = [];
    this.touchTime = 0;
    this.temporaryIds = {
      nodes: [],
      edges: []
    };
    this.guiEnabled = false;
    this.inMode = false;
    this.selectedControlNode = undefined;
    this.options = {};
    this.defaultOptions = {
      enabled: false,
      initiallyActive: false,
      addNode: true,
      addEdge: true,
      editNode: undefined,
      editEdge: true,
      deleteNode: true,
      deleteEdge: true,
      controlNodeStyle: {
        shape: "dot",
        size: 6,
        color: {
          background: "#ff0000",
          border: "#3c3c3c",
          highlight: {
            background: "#07f968",
            border: "#3c3c3c"
          }
        },
        borderWidth: 2,
        borderWidthSelected: 2
      }
    };
    _Object$assign(this.options, this.defaultOptions);
    this.body.emitter.on("destroy", function () {
      _this._clean();
    });
    this.body.emitter.on("_dataChanged", _bindInstanceProperty$1(_context = this._restore).call(_context, this));
    this.body.emitter.on("_resetData", _bindInstanceProperty$1(_context2 = this._restore).call(_context2, this));
  }

/**
   * If something changes in the data during editing, switch back to the initial datamanipulation state and close all edit modes.
   *
   * @private
   */
  _createClass(ManipulationSystem, [{
    key: "_restore",
    value: function _restore() {
      if (this.inMode !== false) {
        if (this.options.initiallyActive === true) {
          this.enableEditMode();
        } else {
          this.disableEditMode();
        }
      }
    }

/**
     * Set the Options
     *
     * @param {object} options
     * @param {object} allOptions
     * @param {object} globalOptions
     */
  }, {
    key: "setOptions",
    value: function setOptions(options, allOptions, globalOptions) {
      if (allOptions !== undefined) {
        if (allOptions.locale !== undefined) {
          this.options.locale = allOptions.locale;
        } else {
          this.options.locale = globalOptions.locale;
        }
        if (allOptions.locales !== undefined) {
          this.options.locales = allOptions.locales;
        } else {
          this.options.locales = globalOptions.locales;
        }
      }
      if (options !== undefined) {
        if (typeof options === "boolean") {
          this.options.enabled = options;
        } else {
          this.options.enabled = true;
          deepExtend(this.options, options);
        }
        if (this.options.initiallyActive === true) {
          this.editMode = true;
        }
        this._setup();
      }
    }

/**
     * Enable or disable edit-mode. Draws the DOM required and cleans up after itself.
     *
     * @private
     */
  }, {
    key: "toggleEditMode",
    value: function toggleEditMode() {
      if (this.editMode === true) {
        this.disableEditMode();
      } else {
        this.enableEditMode();
      }
    }

/**
     * Enables Edit Mode
     */
  }, {
    key: "enableEditMode",
    value: function enableEditMode() {
      this.editMode = true;
      this._clean();
      if (this.guiEnabled === true) {
        this.manipulationDiv.style.display = "block";
        this.closeDiv.style.display = "block";
        this.editModeDiv.style.display = "none";
        this.showManipulatorToolbar();
      }
    }

/**
     * Disables Edit Mode
     */
  }, {
    key: "disableEditMode",
    value: function disableEditMode() {
      this.editMode = false;
      this._clean();
      if (this.guiEnabled === true) {
        this.manipulationDiv.style.display = "none";
        this.closeDiv.style.display = "none";
        this.editModeDiv.style.display = "block";
        this._createEditButton();
      }
    }

/**
     * Creates the main toolbar. Removes functions bound to the select event. Binds all the buttons of the toolbar.
     *
     * @private
     */
  }, {
    key: "showManipulatorToolbar",
    value: function showManipulatorToolbar() {
      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

// reset global variables
      this.manipulationDOM = {};

// if the gui is enabled, draw all elements.
      if (this.guiEnabled === true) {
        var _context3, _context4;
        // a _restore will hide these menus
        this.editMode = true;
        this.manipulationDiv.style.display = "block";
        this.closeDiv.style.display = "block";
        var selectedNodeCount = this.selectionHandler.getSelectedNodeCount();
        var selectedEdgeCount = this.selectionHandler.getSelectedEdgeCount();
        var selectedTotalCount = selectedNodeCount + selectedEdgeCount;
        var locale = this.options.locales[this.options.locale];
        var needSeperator = false;
        if (this.options.addNode !== false) {
          this._createAddNodeButton(locale);
          needSeperator = true;
        }
        if (this.options.addEdge !== false) {
          if (needSeperator === true) {
            this._createSeperator(1);
          } else {
            needSeperator = true;
          }
          this._createAddEdgeButton(locale);
        }
        if (selectedNodeCount === 1 && typeof this.options.editNode === "function") {
          if (needSeperator === true) {
            this._createSeperator(2);
          } else {
            needSeperator = true;
          }
          this._createEditNodeButton(locale);
        } else if (selectedEdgeCount === 1 && selectedNodeCount === 0 && this.options.editEdge !== false) {
          if (needSeperator === true) {
            this._createSeperator(3);
          } else {
            needSeperator = true;
          }
          this._createEditEdgeButton(locale);
        }

// remove buttons
        if (selectedTotalCount !== 0) {
          if (selectedNodeCount > 0 && this.options.deleteNode !== false) {
            if (needSeperator === true) {
              this._createSeperator(4);
            }
            this._createDeleteButton(locale);
          } else if (selectedNodeCount === 0 && this.options.deleteEdge !== false) {
            if (needSeperator === true) {
              this._createSeperator(4);
            }
            this._createDeleteButton(locale);
          }
        }

// bind the close button
        this._bindElementEvents(this.closeDiv, _bindInstanceProperty$1(_context3 = this.toggleEditMode).call(_context3, this));

// refresh this bar based on what has been selected
        this._temporaryBindEvent("select", _bindInstanceProperty$1(_context4 = this.showManipulatorToolbar).call(_context4, this));
      }

// redraw to show any possible changes
      this.body.emitter.emit("_redraw");
    }

/**
     * Create the toolbar for adding Nodes
     */
  }, {
    key: "addNodeMode",
    value: function addNodeMode() {
      var _context6;
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

// restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      this.inMode = "addNode";
      if (this.guiEnabled === true) {
        var _context5;
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale["addDescription"] || this.options.locales["en"]["addDescription"]);

// bind the close button
        this._bindElementEvents(this.closeDiv, _bindInstanceProperty$1(_context5 = this.toggleEditMode).call(_context5, this));
      }
      this._temporaryBindEvent("click", _bindInstanceProperty$1(_context6 = this._performAddNode).call(_context6, this));
    }

/**
     * call the bound function to handle the editing of the node. The node has to be selected.
     */
  }, {
    key: "editNode",
    value: function editNode() {
      var _this2 = this;
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

// restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      var node = this.selectionHandler.getSelectedNodes()[0];
      if (node !== undefined) {
        this.inMode = "editNode";
        if (typeof this.options.editNode === "function") {
          if (node.isCluster !== true) {
            var data = deepExtend({}, node.options, false);
            data.x = node.x;
            data.y = node.y;
            if (this.options.editNode.length === 2) {
              this.options.editNode(data, function (finalizedData) {
                if (finalizedData !== null && finalizedData !== undefined && _this2.inMode === "editNode") {
                  // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
                  _this2.body.data.nodes.getDataSet().update(finalizedData);
                }
                _this2.showManipulatorToolbar();
              });
            } else {
              throw new Error("The function for edit does not support two arguments (data, callback)");
            }
          } else {
            alert(this.options.locales[this.options.locale]["editClusterError"] || this.options.locales["en"]["editClusterError"]);
          }
        } else {
          throw new Error("No function has been configured to handle the editing of nodes.");
        }
      } else {
        this.showManipulatorToolbar();
      }
    }

/**
     * create the toolbar to connect nodes
     */
  }, {
    key: "addEdgeMode",
    value: function addEdgeMode() {
      var _context8, _context9, _context10, _context11, _context12;
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

// restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      this.inMode = "addEdge";
      if (this.guiEnabled === true) {
        var _context7;
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale["edgeDescription"] || this.options.locales["en"]["edgeDescription"]);

// bind the close button
        this._bindElementEvents(this.closeDiv, _bindInstanceProperty$1(_context7 = this.toggleEditMode).call(_context7, this));
      }

// temporarily overload functions
      this._temporaryBindUI("onTouch", _bindInstanceProperty$1(_context8 = this._handleConnect).call(_context8, this));
      this._temporaryBindUI("onDragEnd", _bindInstanceProperty$1(_context9 = this._finishConnect).call(_context9, this));
      this._temporaryBindUI("onDrag", _bindInstanceProperty$1(_context10 = this._dragControlNode).call(_context10, this));
      this._temporaryBindUI("onRelease", _bindInstanceProperty$1(_context11 = this._finishConnect).call(_context11, this));
      this._temporaryBindUI("onDragStart", _bindInstanceProperty$1(_context12 = this._dragStartEdge).call(_context12, this));
      this._temporaryBindUI("onHold", function () {});
    }

/**
     * create the toolbar to edit edges
     */
  }, {
    key: "editEdgeMode",
    value: function editEdgeMode() {
      // when using the gui, enable edit mode if it wasn't already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

// restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      this.inMode = "editEdge";
      if (_typeof(this.options.editEdge) === "object" && typeof this.options.editEdge.editWithoutDrag === "function") {
        this.edgeBeingEditedId = this.selectionHandler.getSelectedEdgeIds()[0];
        if (this.edgeBeingEditedId !== undefined) {
          var edge = this.body.edges[this.edgeBeingEditedId];
          this._performEditEdge(edge.from.id, edge.to.id);
          return;
        }
      }
      if (this.guiEnabled === true) {
        var _context13;
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale["editEdgeDescription"] || this.options.locales["en"]["editEdgeDescription"]);

// bind the close button
        this._bindElementEvents(this.closeDiv, _bindInstanceProperty$1(_context13 = this.toggleEditMode).call(_context13, this));
      }
      this.edgeBeingEditedId = this.selectionHandler.getSelectedEdgeIds()[0];
      if (this.edgeBeingEditedId !== undefined) {
        var _context14, _context15, _context16, _context17;
        var _edge = this.body.edges[this.edgeBeingEditedId];

// create control nodes
        var controlNodeFrom = this._getNewTargetNode(_edge.from.x, _edge.from.y);
        var controlNodeTo = this._getNewTargetNode(_edge.to.x, _edge.to.y);
        this.temporaryIds.nodes.push(controlNodeFrom.id);
        this.temporaryIds.nodes.push(controlNodeTo.id);
        this.body.nodes[controlNodeFrom.id] = controlNodeFrom;
        this.body.nodeIndices.push(controlNodeFrom.id);
        this.body.nodes[controlNodeTo.id] = controlNodeTo;
        this.body.nodeIndices.push(controlNodeTo.id);

// temporarily overload UI functions, cleaned up automatically because of _temporaryBindUI
        this._temporaryBindUI("onTouch", _bindInstanceProperty$1(_context14 = this._controlNodeTouch).call(_context14, this)); // used to get the position
        this._temporaryBindUI("onTap", function () {}); // disabled
        this._temporaryBindUI("onHold", function () {}); // disabled
        this._temporaryBindUI("onDragStart", _bindInstanceProperty$1(_context15 = this._controlNodeDragStart).call(_context15, this)); // used to select control node
        this._temporaryBindUI("onDrag", _bindInstanceProperty$1(_context16 = this._controlNodeDrag).call(_context16, this)); // used to drag control node
        this._temporaryBindUI("onDragEnd", _bindInstanceProperty$1(_context17 = this._controlNodeDragEnd).call(_context17, this)); // used to connect or revert control nodes
        this._temporaryBindUI("onMouseMove", function () {}); // disabled

// create function to position control nodes correctly on movement
        // automatically cleaned up because we use the temporary bind
        this._temporaryBindEvent("beforeDrawing", function (ctx) {
          var positions = _edge.edgeType.findBorderPositions(ctx);
          if (controlNodeFrom.selected === false) {
            controlNodeFrom.x = positions.from.x;
            controlNodeFrom.y = positions.from.y;
          }
          if (controlNodeTo.selected === false) {
            controlNodeTo.x = positions.to.x;
            controlNodeTo.y = positions.to.y;
          }
        });
        this.body.emitter.emit("_redraw");
      } else {
        this.showManipulatorToolbar();
      }
    }

/**
     * delete everything in the selection
     */
  }, {
    key: "deleteSelected",
    value: function deleteSelected() {
      var _this3 = this;
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

// restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      this.inMode = "delete";
      var selectedNodes = this.selectionHandler.getSelectedNodeIds();
      var selectedEdges = this.selectionHandler.getSelectedEdgeIds();
      var deleteFunction = undefined;
      if (selectedNodes.length > 0) {
        for (var i = 0; i < selectedNodes.length; i++) {
          if (this.body.nodes[selectedNodes[i]].isCluster === true) {
            alert(this.options.locales[this.options.locale]["deleteClusterError"] || this.options.locales["en"]["deleteClusterError"]);
            return;
          }
        }
        if (typeof this.options.deleteNode === "function") {
          deleteFunction = this.options.deleteNode;
        }
      } else if (selectedEdges.length > 0) {
        if (typeof this.options.deleteEdge === "function") {
          deleteFunction = this.options.deleteEdge;
        }
      }
      if (typeof deleteFunction === "function") {
        var data = {
          nodes: selectedNodes,
          edges: selectedEdges
        };
        if (deleteFunction.length === 2) {
          deleteFunction(data, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this3.inMode === "delete") {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
              _this3.body.data.edges.getDataSet().remove(finalizedData.edges);
              _this3.body.data.nodes.getDataSet().remove(finalizedData.nodes);
              _this3.body.emitter.emit("startSimulation");
              _this3.showManipulatorToolbar();
            } else {
              _this3.body.emitter.emit("startSimulation");
              _this3.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error("The function for delete does not support two arguments (data, callback)");
        }
      } else {
        this.body.data.edges.getDataSet().remove(selectedEdges);
        this.body.data.nodes.getDataSet().remove(selectedNodes);
        this.body.emitter.emit("startSimulation");
        this.showManipulatorToolbar();
      }
    }

//********************************************** PRIVATE ***************************************//

/**
     * draw or remove the DOM
     *
     * @private
     */
  }, {
    key: "_setup",
    value: function _setup() {
      if (this.options.enabled === true) {
        // Enable the GUI
        this.guiEnabled = true;
        this._createWrappers();
        if (this.editMode === false) {
          this._createEditButton();
        } else {
          this.showManipulatorToolbar();
        }
      } else {
        this._removeManipulationDOM();

// disable the gui
        this.guiEnabled = false;
      }
    }

/**
     * create the div overlays that contain the DOM
     *
     * @private
     */
  }, {
    key: "_createWrappers",
    value: function _createWrappers() {
      // load the manipulator HTML elements. All styling done in css.
      if (this.manipulationDiv === undefined) {
        this.manipulationDiv = document.createElement("div");
        this.manipulationDiv.className = "vis-manipulation";
        if (this.editMode === true) {
          this.manipulationDiv.style.display = "block";
        } else {
          this.manipulationDiv.style.display = "none";
        }
        this.canvas.frame.appendChild(this.manipulationDiv);
      }

// container for the edit button.
      if (this.editModeDiv === undefined) {
        this.editModeDiv = document.createElement("div");
        this.editModeDiv.className = "vis-edit-mode";
        if (this.editMode === true) {
          this.editModeDiv.style.display = "none";
        } else {
          this.editModeDiv.style.display = "block";
        }
        this.canvas.frame.appendChild(this.editModeDiv);
      }

// container for the close div button
      if (this.closeDiv === undefined) {
        var _this$options$locales, _this$options$locales2;
        this.closeDiv = document.createElement("button");
        this.closeDiv.className = "vis-close";
        this.closeDiv.setAttribute("aria-label", (_this$options$locales = (_this$options$locales2 = this.options.locales[this.options.locale]) === null || _this$options$locales2 === void 0 ? void 0 : _this$options$locales2["close"]) !== null && _this$options$locales !== void 0 ? _this$options$locales : this.options.locales["en"]["close"]);
        this.closeDiv.style.display = this.manipulationDiv.style.display;
        this.canvas.frame.appendChild(this.closeDiv);
      }
    }

/**
     * generate a new target node. Used for creating new edges and editing edges
     *
     * @param {number} x
     * @param {number} y
     * @returns {Node}
     * @private
     */
  }, {
    key: "_getNewTargetNode",
    value: function _getNewTargetNode(x, y) {
      var controlNodeStyle = deepExtend({}, this.options.controlNodeStyle);
      controlNodeStyle.id = "targetNode" + v4();
      controlNodeStyle.hidden = false;
      controlNodeStyle.physics = false;
      controlNodeStyle.x = x;
      controlNodeStyle.y = y;

// we have to define the bounding box in order for the nodes to be drawn immediately
      var node = this.body.functions.createNode(controlNodeStyle);
      node.shape.boundingBox = {
        left: x,
        right: x,
        top: y,
        bottom: y
      };
      return node;
    }

/**
     * Create the edit button
     */
  }, {
    key: "_createEditButton",
    value: function _createEditButton() {
      var _context18;
      // restore everything to it's original state (if applicable)
      this._clean();

// reset the manipulationDOM
      this.manipulationDOM = {};

// empty the editModeDiv
      recursiveDOMDelete(this.editModeDiv);

// create the contents for the editMode button
      var locale = this.options.locales[this.options.locale];
      var button = this._createButton("editMode", "vis-edit vis-edit-mode", locale["edit"] || this.options.locales["en"]["edit"]);
      this.editModeDiv.appendChild(button);

// bind a hammer listener to the button, calling the function toggleEditMode.
      this._bindElementEvents(button, _bindInstanceProperty$1(_context18 = this.toggleEditMode).call(_context18, this));
    }

/**
     * this function cleans up after everything this module does. Temporary elements, functions and events are removed, physics restored, hammers removed.
     *
     * @private
     */
  }, {
    key: "_clean",
    value: function _clean() {
      // not in mode
      this.inMode = false;

// _clean the divs
      if (this.guiEnabled === true) {
        recursiveDOMDelete(this.editModeDiv);
        recursiveDOMDelete(this.manipulationDiv);

// removes all the bindings and overloads
        this._cleanupDOMEventListeners();
      }

// remove temporary nodes and edges
      this._cleanupTemporaryNodesAndEdges();

// restore overloaded UI functions
      this._unbindTemporaryUIs();

// remove the temporaryEventFunctions
      this._unbindTemporaryEvents();

// restore the physics if required
      this.body.emitter.emit("restorePhysics");
    }

/**
     * Each dom element has it's own hammer. They are stored in this.manipulationHammers. This cleans them up.
     *
     * @private
     */
  }, {
    key: "_cleanupDOMEventListeners",
    value: function _cleanupDOMEventListeners() {
      var _context19;
      // _clean DOM event listener bindings
      var _iterator = _createForOfIteratorHelper(_spliceInstanceProperty(_context19 = this._domEventListenerCleanupQueue).call(_context19, 0)),
        _step;
      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var callback = _step.value;
          callback();
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    }

/**
     * Remove all DOM elements created by this module.
     *
     * @private
     */
  }, {
    key: "_removeManipulationDOM",
    value: function _removeManipulationDOM() {
      // removes all the bindings and overloads
      this._clean();

// empty the manipulation divs
      recursiveDOMDelete(this.manipulationDiv);
      recursiveDOMDelete(this.editModeDiv);
      recursiveDOMDelete(this.closeDiv);

// remove the manipulation divs
      if (this.manipulationDiv) {
        this.canvas.frame.removeChild(this.manipulationDiv);
      }
      if (this.editModeDiv) {
        this.canvas.frame.removeChild(this.editModeDiv);
      }
      if (this.closeDiv) {
        this.canvas.frame.removeChild(this.closeDiv);
      }

// set the references to undefined
      this.manipulationDiv = undefined;
      this.editModeDiv = undefined;
      this.closeDiv = undefined;
    }

/**
     * create a seperator line. the index is to differentiate in the manipulation dom
     *
     * @param {number} [index=1]
     * @private
     */
  }, {
    key: "_createSeperator",
    value: function _createSeperator() {
      var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
      this.manipulationDOM["seperatorLineDiv" + index] = document.createElement("div");
      this.manipulationDOM["seperatorLineDiv" + index].className = "vis-separator-line";
      this.manipulationDiv.appendChild(this.manipulationDOM["seperatorLineDiv" + index]);
    }

// ----------------------    DOM functions for buttons    --------------------------//

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createAddNodeButton",
    value: function _createAddNodeButton(locale) {
      var _context20;
      var button = this._createButton("addNode", "vis-add", locale["addNode"] || this.options.locales["en"]["addNode"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context20 = this.addNodeMode).call(_context20, this));
    }

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createAddEdgeButton",
    value: function _createAddEdgeButton(locale) {
      var _context21;
      var button = this._createButton("addEdge", "vis-connect", locale["addEdge"] || this.options.locales["en"]["addEdge"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context21 = this.addEdgeMode).call(_context21, this));
    }

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createEditNodeButton",
    value: function _createEditNodeButton(locale) {
      var _context22;
      var button = this._createButton("editNode", "vis-edit", locale["editNode"] || this.options.locales["en"]["editNode"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context22 = this.editNode).call(_context22, this));
    }

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createEditEdgeButton",
    value: function _createEditEdgeButton(locale) {
      var _context23;
      var button = this._createButton("editEdge", "vis-edit", locale["editEdge"] || this.options.locales["en"]["editEdge"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context23 = this.editEdgeMode).call(_context23, this));
    }

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createDeleteButton",
    value: function _createDeleteButton(locale) {
      var _context24;
      var deleteBtnClass;
      if (this.options.rtl) {
        deleteBtnClass = "vis-delete-rtl";
      } else {
        deleteBtnClass = "vis-delete";
      }
      var button = this._createButton("delete", deleteBtnClass, locale["del"] || this.options.locales["en"]["del"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context24 = this.deleteSelected).call(_context24, this));
    }

/**
     *
     * @param {Locale} locale
     * @private
     */
  }, {
    key: "_createBackButton",
    value: function _createBackButton(locale) {
      var _context25;
      var button = this._createButton("back", "vis-back", locale["back"] || this.options.locales["en"]["back"]);
      this.manipulationDiv.appendChild(button);
      this._bindElementEvents(button, _bindInstanceProperty$1(_context25 = this.showManipulatorToolbar).call(_context25, this));
    }

/**
     *
     * @param {number|string} id
     * @param {string} className
     * @param {label} label
     * @param {string} labelClassName
     * @returns {HTMLElement}
     * @private
     */
  }, {
    key: "_createButton",
    value: function _createButton(id, className, label) {
      var labelClassName = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "vis-label";
      this.manipulationDOM[id + "Div"] = document.createElement("button");
      this.manipulationDOM[id + "Div"].className = "vis-button " + className;
      this.manipulationDOM[id + "Label"] = document.createElement("div");
      this.manipulationDOM[id + "Label"].className = labelClassName;
      this.manipulationDOM[id + "Label"].innerText = label;
      this.manipulationDOM[id + "Div"].appendChild(this.manipulationDOM[id + "Label"]);
      return this.manipulationDOM[id + "Div"];
    }

/**
     *
     * @param {Label} label
     * @private
     */
  }, {
    key: "_createDescription",
    value: function _createDescription(label) {
      this.manipulationDOM["descriptionLabel"] = document.createElement("div");
      this.manipulationDOM["descriptionLabel"].className = "vis-none";
      this.manipulationDOM["descriptionLabel"].innerText = label;
      this.manipulationDiv.appendChild(this.manipulationDOM["descriptionLabel"]);
    }

// -------------------------- End of DOM functions for buttons ------------------------------//

/**
     * this binds an event until cleanup by the clean functions.
     *
     * @param {Event}  event   The event
     * @param {Function} newFunction
     * @private
     */
  }, {
    key: "_temporaryBindEvent",
    value: function _temporaryBindEvent(event, newFunction) {
      this.temporaryEventFunctions.push({
        event: event,
        boundFunction: newFunction
      });
      this.body.emitter.on(event, newFunction);
    }

/**
     * this overrides an UI function until cleanup by the clean function
     *
     * @param {string} UIfunctionName
     * @param {Function} newFunction
     * @private
     */
  }, {
    key: "_temporaryBindUI",
    value: function _temporaryBindUI(UIfunctionName, newFunction) {
      if (this.body.eventListeners[UIfunctionName] !== undefined) {
        this.temporaryUIFunctions[UIfunctionName] = this.body.eventListeners[UIfunctionName];
        this.body.eventListeners[UIfunctionName] = newFunction;
      } else {
        throw new Error("This UI function does not exist. Typo? You tried: " + UIfunctionName + " possible are: " + _JSON$stringify(_Object$keys(this.body.eventListeners)));
      }
    }

/**
     * Restore the overridden UI functions to their original state.
     *
     * @private
     */
  }, {
    key: "_unbindTemporaryUIs",
    value: function _unbindTemporaryUIs() {
      for (var functionName in this.temporaryUIFunctions) {
        if (Object.prototype.hasOwnProperty.call(this.temporaryUIFunctions, functionName)) {
          this.body.eventListeners[functionName] = this.temporaryUIFunctions[functionName];
          delete this.temporaryUIFunctions[functionName];
        }
      }
      this.temporaryUIFunctions = {};
    }

/**
     * Unbind the events created by _temporaryBindEvent
     *
     * @private
     */
  }, {
    key: "_unbindTemporaryEvents",
    value: function _unbindTemporaryEvents() {
      for (var i = 0; i < this.temporaryEventFunctions.length; i++) {
        var eventName = this.temporaryEventFunctions[i].event;
        var boundFunction = this.temporaryEventFunctions[i].boundFunction;
        this.body.emitter.off(eventName, boundFunction);
      }
      this.temporaryEventFunctions = [];
    }

/**
     * Bind an hammer instance to a DOM element.
     *
     * @param {Element} domElement
     * @param {Function} boundFunction
     */
  }, {
    key: "_bindElementEvents",
    value: function _bindElementEvents(domElement, boundFunction) {
      // Bind touch events.
      var hammer = new Hammer(domElement, {});
      onTouch(hammer, boundFunction);
      this._domEventListenerCleanupQueue.push(function () {
        hammer.destroy();
      });

// Bind keyboard events.
      var keyupListener = function keyupListener(_ref) {
        var keyCode = _ref.keyCode,
          key = _ref.key;
        if (key === "Enter" || key === " " || keyCode === 13 || keyCode === 32) {
          boundFunction();
        }
      };
      domElement.addEventListener("keyup", keyupListener, false);
      this._domEventListenerCleanupQueue.push(function () {
        domElement.removeEventListener("keyup", keyupListener, false);
      });
    }

/**
     * Neatly clean up temporary edges and nodes
     *
     * @private
     */
  }, {
    key: "_cleanupTemporaryNodesAndEdges",
    value: function _cleanupTemporaryNodesAndEdges() {
      // _clean temporary edges
      for (var i = 0; i < this.temporaryIds.edges.length; i++) {
        var _context26;
        this.body.edges[this.temporaryIds.edges[i]].disconnect();
        delete this.body.edges[this.temporaryIds.edges[i]];
        var indexTempEdge = _indexOfInstanceProperty(_context26 = this.body.edgeIndices).call(_context26, this.temporaryIds.edges[i]);
        if (indexTempEdge !== -1) {
          var _context27;
          _spliceInstanceProperty(_context27 = this.body.edgeIndices).call(_context27, indexTempEdge, 1);
        }
      }

// _clean temporary nodes
      for (var _i = 0; _i < this.temporaryIds.nodes.length; _i++) {
        var _context28;
        delete this.body.nodes[this.temporaryIds.nodes[_i]];
        var indexTempNode = _indexOfInstanceProperty(_context28 = this.body.nodeIndices).call(_context28, this.temporaryIds.nodes[_i]);
        if (indexTempNode !== -1) {
          var _context29;
          _spliceInstanceProperty(_context29 = this.body.nodeIndices).call(_context29, indexTempNode, 1);
        }
      }
      this.temporaryIds = {
        nodes: [],
        edges: []
      };
    }

// ------------------------------------------ EDIT EDGE FUNCTIONS -----------------------------------------//

/**
     * the touch is used to get the position of the initial click
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "_controlNodeTouch",
    value: function _controlNodeTouch(event) {
      this.selectionHandler.unselectAll();
      this.lastTouch = this.body.functions.getPointer(event.center);
      this.lastTouch.translation = _Object$assign({}, this.body.view.translation); // copy the object
    }

/**
     * the drag start is used to mark one of the control nodes as selected.
     *
     * @private
     */
  }, {
    key: "_controlNodeDragStart",
    value: function _controlNodeDragStart() {
      var pointer = this.lastTouch;
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      var from = this.body.nodes[this.temporaryIds.nodes[0]];
      var to = this.body.nodes[this.temporaryIds.nodes[1]];
      var edge = this.body.edges[this.edgeBeingEditedId];
      this.selectedControlNode = undefined;
      var fromSelect = from.isOverlappingWith(pointerObj);
      var toSelect = to.isOverlappingWith(pointerObj);
      if (fromSelect === true) {
        this.selectedControlNode = from;
        edge.edgeType.from = from;
      } else if (toSelect === true) {
        this.selectedControlNode = to;
        edge.edgeType.to = to;
      }

// we use the selection to find the node that is being dragged. We explicitly select it here.
      if (this.selectedControlNode !== undefined) {
        this.selectionHandler.selectObject(this.selectedControlNode);
      }
      this.body.emitter.emit("_redraw");
    }

/**
     * dragging the control nodes or the canvas
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "_controlNodeDrag",
    value: function _controlNodeDrag(event) {
      this.body.emitter.emit("disablePhysics");
      var pointer = this.body.functions.getPointer(event.center);
      var pos = this.canvas.DOMtoCanvas(pointer);
      if (this.selectedControlNode !== undefined) {
        this.selectedControlNode.x = pos.x;
        this.selectedControlNode.y = pos.y;
      } else {
        this.interactionHandler.onDrag(event);
      }
      this.body.emitter.emit("_redraw");
    }

/**
     * connecting or restoring the control nodes.
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "_controlNodeDragEnd",
    value: function _controlNodeDragEnd(event) {
      var pointer = this.body.functions.getPointer(event.center);
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      var edge = this.body.edges[this.edgeBeingEditedId];
      // if the node that was dragged is not a control node, return
      if (this.selectedControlNode === undefined) {
        return;
      }

// we use the selection to find the node that is being dragged. We explicitly DEselect the control node here.
      this.selectionHandler.unselectAll();
      var overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
      var node = undefined;
      for (var i = overlappingNodeIds.length - 1; i >= 0; i--) {
        if (overlappingNodeIds[i] !== this.selectedControlNode.id) {
          node = this.body.nodes[overlappingNodeIds[i]];
          break;
        }
      }
      // perform the connection
      if (node !== undefined && this.selectedControlNode !== undefined) {
        if (node.isCluster === true) {
          alert(this.options.locales[this.options.locale]["createEdgeError"] || this.options.locales["en"]["createEdgeError"]);
        } else {
          var from = this.body.nodes[this.temporaryIds.nodes[0]];
          if (this.selectedControlNode.id === from.id) {
            this._performEditEdge(node.id, edge.to.id);
          } else {
            this._performEditEdge(edge.from.id, node.id);
          }
        }
      } else {
        edge.updateEdgeType();
        this.body.emitter.emit("restorePhysics");
      }
      this.body.emitter.emit("_redraw");
    }

// ------------------------------------ END OF EDIT EDGE FUNCTIONS -----------------------------------------//

// ------------------------------------------- ADD EDGE FUNCTIONS -----------------------------------------//
    /**
     * the function bound to the selection event. It checks if you want to connect a cluster and changes the description
     * to walk the user through the process.
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "_handleConnect",
    value: function _handleConnect(event) {
      // check to avoid double fireing of this function.
      if (new Date().valueOf() - this.touchTime > 100) {
        this.lastTouch = this.body.functions.getPointer(event.center);
        this.lastTouch.translation = _Object$assign({}, this.body.view.translation); // copy the object

this.interactionHandler.drag.pointer = this.lastTouch; // Drag pointer is not updated when adding edges
        this.interactionHandler.drag.translation = this.lastTouch.translation;
        var pointer = this.lastTouch;
        var node = this.selectionHandler.getNodeAt(pointer);
        if (node !== undefined) {
          if (node.isCluster === true) {
            alert(this.options.locales[this.options.locale]["createEdgeError"] || this.options.locales["en"]["createEdgeError"]);
          } else {
            // create a node the temporary line can look at
            var targetNode = this._getNewTargetNode(node.x, node.y);
            this.body.nodes[targetNode.id] = targetNode;
            this.body.nodeIndices.push(targetNode.id);

// create a temporary edge
            var connectionEdge = this.body.functions.createEdge({
              id: "connectionEdge" + v4(),
              from: node.id,
              to: targetNode.id,
              physics: false,
              smooth: {
                enabled: true,
                type: "continuous",
                roundness: 0.5
              }
            });
            this.body.edges[connectionEdge.id] = connectionEdge;
            this.body.edgeIndices.push(connectionEdge.id);
            this.temporaryIds.nodes.push(targetNode.id);
            this.temporaryIds.edges.push(connectionEdge.id);
          }
        }
        this.touchTime = new Date().valueOf();
      }
    }

/**
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "_dragControlNode",
    value: function _dragControlNode(event) {
      var pointer = this.body.functions.getPointer(event.center);
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      // remember the edge id
      var connectFromId = undefined;
      if (this.temporaryIds.edges[0] !== undefined) {
        connectFromId = this.body.edges[this.temporaryIds.edges[0]].fromId;
      }

// get the overlapping node but NOT the temporary node;
      var overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
      var node = undefined;
      for (var i = overlappingNodeIds.length - 1; i >= 0; i--) {
        var _context30;
        // if the node id is NOT a temporary node, accept the node.
        if (_indexOfInstanceProperty(_context30 = this.temporaryIds.nodes).call(_context30, overlappingNodeIds[i]) === -1) {
          node = this.body.nodes[overlappingNodeIds[i]];
          break;
        }
      }
      event.controlEdge = {
        from: connectFromId,
        to: node ? node.id : undefined
      };
      this.selectionHandler.generateClickEvent("controlNodeDragging", event, pointer);
      if (this.temporaryIds.nodes[0] !== undefined) {
        var targetNode = this.body.nodes[this.temporaryIds.nodes[0]]; // there is only one temp node in the add edge mode.
        targetNode.x = this.canvas._XconvertDOMtoCanvas(pointer.x);
        targetNode.y = this.canvas._YconvertDOMtoCanvas(pointer.y);
        this.body.emitter.emit("_redraw");
      } else {
        this.interactionHandler.onDrag(event);
      }
    }

/**
     * Connect the new edge to the target if one exists, otherwise remove temp line
     *
     * @param {Event}  event   The event
     * @private
     */
  }, {
    key: "_finishConnect",
    value: function _finishConnect(event) {
      var pointer = this.body.functions.getPointer(event.center);
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);

// remember the edge id
      var connectFromId = undefined;
      if (this.temporaryIds.edges[0] !== undefined) {
        connectFromId = this.body.edges[this.temporaryIds.edges[0]].fromId;
      }

// clean temporary nodes and edges.
      this._cleanupTemporaryNodesAndEdges();

// perform the connection
      if (node !== undefined) {
        if (node.isCluster === true) {
          alert(this.options.locales[this.options.locale]["createEdgeError"] || this.options.locales["en"]["createEdgeError"]);
        } else {
          if (this.body.nodes[connectFromId] !== undefined && this.body.nodes[node.id] !== undefined) {
            this._performAddEdge(connectFromId, node.id);
          }
        }
      }
      event.controlEdge = {
        from: connectFromId,
        to: node ? node.id : undefined
      };
      this.selectionHandler.generateClickEvent("controlNodeDragEnd", event, pointer);

// No need to do _generateclickevent('dragEnd') here, the regular dragEnd event fires.
      this.body.emitter.emit("_redraw");
    }

/**
     *
     * @param {Event} event
     * @private
     */
  }, {
    key: "_dragStartEdge",
    value: function _dragStartEdge(event) {
      var pointer = this.lastTouch;
      this.selectionHandler.generateClickEvent("dragStart", event, pointer, undefined, true);
    }

// --------------------------------------- END OF ADD EDGE FUNCTIONS -------------------------------------//

// ------------------------------ Performing all the actual data manipulation ------------------------//

/**
     * Adds a node on the specified location
     *
     * @param {object} clickData
     * @private
     */
  }, {
    key: "_performAddNode",
    value: function _performAddNode(clickData) {
      var _this4 = this;
      var defaultData = {
        id: v4(),
        x: clickData.pointer.canvas.x,
        y: clickData.pointer.canvas.y,
        label: "new"
      };
      if (typeof this.options.addNode === "function") {
        if (this.options.addNode.length === 2) {
          this.options.addNode(defaultData, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this4.inMode === "addNode") {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback
              _this4.body.data.nodes.getDataSet().add(finalizedData);
            }
            _this4.showManipulatorToolbar();
          });
        } else {
          this.showManipulatorToolbar();
          throw new Error("The function for add does not support two arguments (data,callback)");
        }
      } else {
        this.body.data.nodes.getDataSet().add(defaultData);
        this.showManipulatorToolbar();
      }
    }

/**
     * connect two nodes with a new edge.
     *
     * @param {Node.id} sourceNodeId
     * @param {Node.id} targetNodeId
     * @private
     */
  }, {
    key: "_performAddEdge",
    value: function _performAddEdge(sourceNodeId, targetNodeId) {
      var _this5 = this;
      var defaultData = {
        from: sourceNodeId,
        to: targetNodeId
      };
      if (typeof this.options.addEdge === "function") {
        if (this.options.addEdge.length === 2) {
          this.options.addEdge(defaultData, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this5.inMode === "addEdge") {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback
              _this5.body.data.edges.getDataSet().add(finalizedData);
              _this5.selectionHandler.unselectAll();
              _this5.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error("The function for connect does not support two arguments (data,callback)");
        }
      } else {
        this.body.data.edges.getDataSet().add(defaultData);
        this.selectionHandler.unselectAll();
        this.showManipulatorToolbar();
      }
    }

/**
     * connect two nodes with a new edge.
     *
     * @param {Node.id} sourceNodeId
     * @param {Node.id} targetNodeId
     * @private
     */
  }, {
    key: "_performEditEdge",
    value: function _performEditEdge(sourceNodeId, targetNodeId) {
      var _this6 = this;
      var defaultData = {
        id: this.edgeBeingEditedId,
        from: sourceNodeId,
        to: targetNodeId,
        label: this.body.data.edges.get(this.edgeBeingEditedId).label
      };
      var eeFunct = this.options.editEdge;
      if (_typeof(eeFunct) === "object") {
        eeFunct = eeFunct.editWithoutDrag;
      }
      if (typeof eeFunct === "function") {
        if (eeFunct.length === 2) {
          eeFunct(defaultData, function (finalizedData) {
            if (finalizedData === null || finalizedData === undefined || _this6.inMode !== "editEdge") {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
              _this6.body.edges[defaultData.id].updateEdgeType();
              _this6.body.emitter.emit("_redraw");
              _this6.showManipulatorToolbar();
            } else {
              _this6.body.data.edges.getDataSet().update(finalizedData);
              _this6.selectionHandler.unselectAll();
              _this6.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error("The function for edit does not support two arguments (data, callback)");
        }
      } else {
        this.body.data.edges.getDataSet().update(defaultData);
        this.selectionHandler.unselectAll();
        this.showManipulatorToolbar();
      }
    }
  }]);
  return ManipulationSystem;
}();

/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
var string = "string";
var bool = "boolean";
var number = "number";
var array = "array";
var object = "object"; // should only be in a __type__ property
var dom = "dom";
var any = "any";
// List of endpoints
var endPoints = ["arrow", "bar", "box", "circle", "crow", "curve", "diamond", "image", "inv_curve", "inv_triangle", "triangle", "vee"];
/* eslint-disable @typescript-eslint/naming-convention -- The __*__ format is used to prevent collisions with actual option names. */
var nodeOptions = {
  borderWidth: {
    number: number
  },
  borderWidthSelected: {
    number: number,
    undefined: "undefined"
  },
  brokenImage: {
    string: string,
    undefined: "undefined"
  },
  chosen: {
    label: {
      boolean: bool,
      function: "function"
    },
    node: {
      boolean: bool,
      function: "function"
    },
    __type__: {
      object: object,
      boolean: bool
    }
  },
  color: {
    border: {
      string: string
    },
    background: {
      string: string
    },
    highlight: {
      border: {
        string: string
      },
      background: {
        string: string
      },
      __type__: {
        object: object,
        string: string
      }
    },
    hover: {
      border: {
        string: string
      },
      background: {
        string: string
      },
      __type__: {
        object: object,
        string: string
      }
    },
    __type__: {
      object: object,
      string: string
    }
  },
  opacity: {
    number: number,
    undefined: "undefined"
  },
  fixed: {
    x: {
      boolean: bool
    },
    y: {
      boolean: bool
    },
    __type__: {
      object: object,
      boolean: bool
    }
  },
  font: {
    align: {
      string: string
    },
    color: {
      string: string
    },
    size: {
      number: number
    },
    face: {
      string: string
    },
    background: {
      string: string
    },
    strokeWidth: {
      number: number
    },
    strokeColor: {
      string: string
    },
    vadjust: {
      number: number
    },
    multi: {
      boolean: bool,
      string: string
    },
    bold: {
      color: {
        string: string
      },
      size: {
        number: number
      },
      face: {
        string: string
      },
      mod: {
        string: string
      },
      vadjust: {
        number: number
      },
      __type__: {
        object: object,
        string: string
      }
    },
    boldital: {
      color: {
        string: string
      },
      size: {
        number: number
      },
      face: {
        string: string
      },
      mod: {
        string: string
      },
      vadjust: {
        number: number
      },
      __type__: {
        object: object,
        string: string
      }
    },
    ital: {
      color: {
        string: string
      },
      size: {
        number: number
      },
      face: {
        string: string
      },
      mod: {
        string: string
      },
      vadjust: {
        number: number
      },
      __type__: {
        object: object,
        string: string
      }
    },
    mono: {
      color: {
        string: string
      },
      size: {
        number: number
      },
      face: {
        string: string
      },
      mod: {
        string: string
      },
      vadjust: {
        number: number
      },
      __type__: {
        object: object,
        string: string
      }
    },
    __type__: {
      object: object,
      string: string
    }
  },
  group: {
    string: string,
    number: number,
    undefined: "undefined"
  },
  heightConstraint: {
    minimum: {
      number: number
    },
    valign: {
      string: string
    },
    __type__: {
      object: object,
      boolean: bool,
      number: number
    }
  },
  hidden: {
    boolean: bool
  },
  icon: {
    face: {
      string: string
    },
    code: {
      string: string
    },
    size: {
      number: number
    },
    color: {
      string: string
    },
    weight: {
      string: string,
      number: number
    },
    __type__: {
      object: object
    }
  },
  id: {
    string: string,
    number: number
  },
  image: {
    selected: {
      string: string,
      undefined: "undefined"
    },
    unselected: {
      string: string,
      undefined: "undefined"
    },
    __type__: {
      object: object,
      string: string
    }
  },
  imagePadding: {
    top: {
      number: number
    },
    right: {
      number: number
    },
    bottom: {
      number: number
    },
    left: {
      number: number
    },
    __type__: {
      object: object,
      number: number
    }
  },
  label: {
    string: string,
    undefined: "undefined"
  },
  labelHighlightBold: {
    boolean: bool
  },
  level: {
    number: number,
    undefined: "undefined"
  },
  margin: {
    top: {
      number: number
    },
    right: {
      number: number
    },
    bottom: {
      number: number
    },
    left: {
      number: number
    },
    __type__: {
      object: object,
      number: number
    }
  },
  mass: {
    number: number
  },
  physics: {
    boolean: bool
  },
  scaling: {
    min: {
      number: number
    },
    max: {
      number: number
    },
    label: {
      enabled: {
        boolean: bool
      },
      min: {
        number: number
      },
      max: {
        number: number
      },
      maxVisible: {
        number: number
      },
      drawThreshold: {
        number: number
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    customScalingFunction: {
      function: "function"
    },
    __type__: {
      object: object
    }
  },
  shadow: {
    enabled: {
      boolean: bool
    },
    color: {
      string: string
    },
    size: {
      number: number
    },
    x: {
      number: number
    },
    y: {
      number: number
    },
    __type__: {
      object: object,
      boolean: bool
    }
  },
  shape: {
    string: ["custom", "ellipse", "circle", "database", "box", "text", "image", "circularImage", "diamond", "dot", "star", "triangle", "triangleDown", "square", "icon", "hexagon"]
  },
  ctxRenderer: {
    function: "function"
  },
  shapeProperties: {
    borderDashes: {
      boolean: bool,
      array: array
    },
    borderRadius: {
      number: number
    },
    interpolation: {
      boolean: bool
    },
    useImageSize: {
      boolean: bool
    },
    useBorderWithImage: {
      boolean: bool
    },
    coordinateOrigin: {
      string: ["center", "top-left"]
    },
    __type__: {
      object: object
    }
  },
  size: {
    number: number
  },
  title: {
    string: string,
    dom: dom,
    undefined: "undefined"
  },
  value: {
    number: number,
    undefined: "undefined"
  },
  widthConstraint: {
    minimum: {
      number: number
    },
    maximum: {
      number: number
    },
    __type__: {
      object: object,
      boolean: bool,
      number: number
    }
  },
  x: {
    number: number
  },
  y: {
    number: number
  },
  __type__: {
    object: object
  }
};
var allOptions = {
  configure: {
    enabled: {
      boolean: bool
    },
    filter: {
      boolean: bool,
      string: string,
      array: array,
      function: "function"
    },
    container: {
      dom: dom
    },
    showButton: {
      boolean: bool
    },
    __type__: {
      object: object,
      boolean: bool,
      string: string,
      array: array,
      function: "function"
    }
  },
  edges: {
    arrows: {
      to: {
        enabled: {
          boolean: bool
        },
        scaleFactor: {
          number: number
        },
        type: {
          string: endPoints
        },
        imageHeight: {
          number: number
        },
        imageWidth: {
          number: number
        },
        src: {
          string: string
        },
        __type__: {
          object: object,
          boolean: bool
        }
      },
      middle: {
        enabled: {
          boolean: bool
        },
        scaleFactor: {
          number: number
        },
        type: {
          string: endPoints
        },
        imageWidth: {
          number: number
        },
        imageHeight: {
          number: number
        },
        src: {
          string: string
        },
        __type__: {
          object: object,
          boolean: bool
        }
      },
      from: {
        enabled: {
          boolean: bool
        },
        scaleFactor: {
          number: number
        },
        type: {
          string: endPoints
        },
        imageWidth: {
          number: number
        },
        imageHeight: {
          number: number
        },
        src: {
          string: string
        },
        __type__: {
          object: object,
          boolean: bool
        }
      },
      __type__: {
        string: ["from", "to", "middle"],
        object: object
      }
    },
    endPointOffset: {
      from: {
        number: number
      },
      to: {
        number: number
      },
      __type__: {
        object: object,
        number: number
      }
    },
    arrowStrikethrough: {
      boolean: bool
    },
    background: {
      enabled: {
        boolean: bool
      },
      color: {
        string: string
      },
      size: {
        number: number
      },
      dashes: {
        boolean: bool,
        array: array
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    chosen: {
      label: {
        boolean: bool,
        function: "function"
      },
      edge: {
        boolean: bool,
        function: "function"
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    color: {
      color: {
        string: string
      },
      highlight: {
        string: string
      },
      hover: {
        string: string
      },
      inherit: {
        string: ["from", "to", "both"],
        boolean: bool
      },
      opacity: {
        number: number
      },
      __type__: {
        object: object,
        string: string
      }
    },
    dashes: {
      boolean: bool,
      array: array
    },
    font: {
      color: {
        string: string
      },
      size: {
        number: number
      },
      face: {
        string: string
      },
      background: {
        string: string
      },
      strokeWidth: {
        number: number
      },
      strokeColor: {
        string: string
      },
      align: {
        string: ["horizontal", "top", "middle", "bottom"]
      },
      vadjust: {
        number: number
      },
      multi: {
        boolean: bool,
        string: string
      },
      bold: {
        color: {
          string: string
        },
        size: {
          number: number
        },
        face: {
          string: string
        },
        mod: {
          string: string
        },
        vadjust: {
          number: number
        },
        __type__: {
          object: object,
          string: string
        }
      },
      boldital: {
        color: {
          string: string
        },
        size: {
          number: number
        },
        face: {
          string: string
        },
        mod: {
          string: string
        },
        vadjust: {
          number: number
        },
        __type__: {
          object: object,
          string: string
        }
      },
      ital: {
        color: {
          string: string
        },
        size: {
          number: number
        },
        face: {
          string: string
        },
        mod: {
          string: string
        },
        vadjust: {
          number: number
        },
        __type__: {
          object: object,
          string: string
        }
      },
      mono: {
        color: {
          string: string
        },
        size: {
          number: number
        },
        face: {
          string: string
        },
        mod: {
          string: string
        },
        vadjust: {
          number: number
        },
        __type__: {
          object: object,
          string: string
        }
      },
      __type__: {
        object: object,
        string: string
      }
    },
    hidden: {
      boolean: bool
    },
    hoverWidth: {
      function: "function",
      number: number
    },
    label: {
      string: string,
      undefined: "undefined"
    },
    labelHighlightBold: {
      boolean: bool
    },
    length: {
      number: number,
      undefined: "undefined"
    },
    physics: {
      boolean: bool
    },
    scaling: {
      min: {
        number: number
      },
      max: {
        number: number
      },
      label: {
        enabled: {
          boolean: bool
        },
        min: {
          number: number
        },
        max: {
          number: number
        },
        maxVisible: {
          number: number
        },
        drawThreshold: {
          number: number
        },
        __type__: {
          object: object,
          boolean: bool
        }
      },
      customScalingFunction: {
        function: "function"
      },
      __type__: {
        object: object
      }
    },
    selectionWidth: {
      function: "function",
      number: number
    },
    selfReferenceSize: {
      number: number
    },
    selfReference: {
      size: {
        number: number
      },
      angle: {
        number: number
      },
      renderBehindTheNode: {
        boolean: bool
      },
      __type__: {
        object: object
      }
    },
    shadow: {
      enabled: {
        boolean: bool
      },
      color: {
        string: string
      },
      size: {
        number: number
      },
      x: {
        number: number
      },
      y: {
        number: number
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    smooth: {
      enabled: {
        boolean: bool
      },
      type: {
        string: ["dynamic", "continuous", "discrete", "diagonalCross", "straightCross", "horizontal", "vertical", "curvedCW", "curvedCCW", "cubicBezier"]
      },
      roundness: {
        number: number
      },
      forceDirection: {
        string: ["horizontal", "vertical", "none"],
        boolean: bool
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    title: {
      string: string,
      undefined: "undefined"
    },
    width: {
      number: number
    },
    widthConstraint: {
      maximum: {
        number: number
      },
      __type__: {
        object: object,
        boolean: bool,
        number: number
      }
    },
    value: {
      number: number,
      undefined: "undefined"
    },
    __type__: {
      object: object
    }
  },
  groups: {
    useDefaultGroups: {
      boolean: bool
    },
    __any__: nodeOptions,
    __type__: {
      object: object
    }
  },
  interaction: {
    dragNodes: {
      boolean: bool
    },
    dragView: {
      boolean: bool
    },
    hideEdgesOnDrag: {
      boolean: bool
    },
    hideEdgesOnZoom: {
      boolean: bool
    },
    hideNodesOnDrag: {
      boolean: bool
    },
    hover: {
      boolean: bool
    },
    keyboard: {
      enabled: {
        boolean: bool
      },
      speed: {
        x: {
          number: number
        },
        y: {
          number: number
        },
        zoom: {
          number: number
        },
        __type__: {
          object: object
        }
      },
      bindToWindow: {
        boolean: bool
      },
      autoFocus: {
        boolean: bool
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    multiselect: {
      boolean: bool
    },
    navigationButtons: {
      boolean: bool
    },
    selectable: {
      boolean: bool
    },
    selectConnectedEdges: {
      boolean: bool
    },
    hoverConnectedEdges: {
      boolean: bool
    },
    tooltipDelay: {
      number: number
    },
    zoomView: {
      boolean: bool
    },
    zoomSpeed: {
      number: number
    },
    __type__: {
      object: object
    }
  },
  layout: {
    randomSeed: {
      undefined: "undefined",
      number: number,
      string: string
    },
    improvedLayout: {
      boolean: bool
    },
    clusterThreshold: {
      number: number
    },
    hierarchical: {
      enabled: {
        boolean: bool
      },
      levelSeparation: {
        number: number
      },
      nodeSpacing: {
        number: number
      },
      treeSpacing: {
        number: number
      },
      blockShifting: {
        boolean: bool
      },
      edgeMinimization: {
        boolean: bool
      },
      parentCentralization: {
        boolean: bool
      },
      direction: {
        string: ["UD", "DU", "LR", "RL"]
      },
      sortMethod: {
        string: ["hubsize", "directed"]
      },
      shakeTowards: {
        string: ["leaves", "roots"]
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    __type__: {
      object: object
    }
  },
  manipulation: {
    enabled: {
      boolean: bool
    },
    initiallyActive: {
      boolean: bool
    },
    addNode: {
      boolean: bool,
      function: "function"
    },
    addEdge: {
      boolean: bool,
      function: "function"
    },
    editNode: {
      function: "function"
    },
    editEdge: {
      editWithoutDrag: {
        function: "function"
      },
      __type__: {
        object: object,
        boolean: bool,
        function: "function"
      }
    },
    deleteNode: {
      boolean: bool,
      function: "function"
    },
    deleteEdge: {
      boolean: bool,
      function: "function"
    },
    controlNodeStyle: nodeOptions,
    __type__: {
      object: object,
      boolean: bool
    }
  },
  nodes: nodeOptions,
  physics: {
    enabled: {
      boolean: bool
    },
    barnesHut: {
      theta: {
        number: number
      },
      gravitationalConstant: {
        number: number
      },
      centralGravity: {
        number: number
      },
      springLength: {
        number: number
      },
      springConstant: {
        number: number
      },
      damping: {
        number: number
      },
      avoidOverlap: {
        number: number
      },
      __type__: {
        object: object
      }
    },
    forceAtlas2Based: {
      theta: {
        number: number
      },
      gravitationalConstant: {
        number: number
      },
      centralGravity: {
        number: number
      },
      springLength: {
        number: number
      },
      springConstant: {
        number: number
      },
      damping: {
        number: number
      },
      avoidOverlap: {
        number: number
      },
      __type__: {
        object: object
      }
    },
    repulsion: {
      centralGravity: {
        number: number
      },
      springLength: {
        number: number
      },
      springConstant: {
        number: number
      },
      nodeDistance: {
        number: number
      },
      damping: {
        number: number
      },
      __type__: {
        object: object
      }
    },
    hierarchicalRepulsion: {
      centralGravity: {
        number: number
      },
      springLength: {
        number: number
      },
      springConstant: {
        number: number
      },
      nodeDistance: {
        number: number
      },
      damping: {
        number: number
      },
      avoidOverlap: {
        number: number
      },
      __type__: {
        object: object
      }
    },
    maxVelocity: {
      number: number
    },
    minVelocity: {
      number: number
    },
    solver: {
      string: ["barnesHut", "repulsion", "hierarchicalRepulsion", "forceAtlas2Based"]
    },
    stabilization: {
      enabled: {
        boolean: bool
      },
      iterations: {
        number: number
      },
      updateInterval: {
        number: number
      },
      onlyDynamicEdges: {
        boolean: bool
      },
      fit: {
        boolean: bool
      },
      __type__: {
        object: object,
        boolean: bool
      }
    },
    timestep: {
      number: number
    },
    adaptiveTimestep: {
      boolean: bool
    },
    wind: {
      x: {
        number: number
      },
      y: {
        number: number
      },
      __type__: {
        object: object
      }
    },
    __type__: {
      object: object,
      boolean: bool
    }
  },
  //globals :
  autoResize: {
    boolean: bool
  },
  clickToUse: {
    boolean: bool
  },
  locale: {
    string: string
  },
  locales: {
    __any__: {
      any: any
    },
    __type__: {
      object: object
    }
  },
  height: {
    string: string
  },
  width: {
    string: string
  },
  __type__: {
    object: object
  }
};
/* eslint-enable @typescript-eslint/naming-convention */
/**
 * This provides ranges, initial values, steps and dropdown menu choices for the
 * configuration.
 *
 * @remarks
 * Checkbox: `boolean`
 *   The value supllied will be used as the initial value.
 *
 * Text field: `string`
 *   The passed text will be used as the initial value. Any text will be
 *   accepted afterwards.
 *
 * Number range: `[number, number, number, number]`
 *   The meanings are `[initial value, min, max, step]`.
 *
 * Dropdown: `[Exclude<string, "color">, ...(string | number | boolean)[]]`
 *   Translations for people with poor understanding of TypeScript: the first
 *   value always has to be a string but never `"color"`, the rest can be any
 *   combination of strings, numbers and booleans.
 *
 * Color picker: `["color", string]`
 *   The first value says this will be a color picker not a dropdown menu. The
 *   next value is the initial color.
 */
var configureOptions = {
  nodes: {
    borderWidth: [1, 0, 10, 1],
    borderWidthSelected: [2, 0, 10, 1],
    color: {
      border: ["color", "#2B7CE9"],
      background: ["color", "#97C2FC"],
      highlight: {
        border: ["color", "#2B7CE9"],
        background: ["color", "#D2E5FF"]
      },
      hover: {
        border: ["color", "#2B7CE9"],
        background: ["color", "#D2E5FF"]
      }
    },
    opacity: [0, 0, 1, 0.1],
    fixed: {
      x: false,
      y: false
    },
    font: {
      color: ["color", "#343434"],
      size: [14, 0, 100, 1],
      face: ["arial", "verdana", "tahoma"],
      background: ["color", "none"],
      strokeWidth: [0, 0, 50, 1],
      strokeColor: ["color", "#ffffff"]
    },
    //group: 'string',
    hidden: false,
    labelHighlightBold: true,
    //icon: {
    //  face: 'string',  //'FontAwesome',
    //  code: 'string',  //'\uf007',
    //  size: [50, 0, 200, 1],  //50,
    //  color: ['color','#2B7CE9']   //'#aa00ff'
    //},
    //image: 'string', // --> URL
    physics: true,
    scaling: {
      min: [10, 0, 200, 1],
      max: [30, 0, 200, 1],
      label: {
        enabled: false,
        min: [14, 0, 200, 1],
        max: [30, 0, 200, 1],
        maxVisible: [30, 0, 200, 1],
        drawThreshold: [5, 0, 20, 1]
      }
    },
    shadow: {
      enabled: false,
      color: "rgba(0,0,0,0.5)",
      size: [10, 0, 20, 1],
      x: [5, -30, 30, 1],
      y: [5, -30, 30, 1]
    },
    shape: ["ellipse", "box", "circle", "database", "diamond", "dot", "square", "star", "text", "triangle", "triangleDown", "hexagon"],
    shapeProperties: {
      borderDashes: false,
      borderRadius: [6, 0, 20, 1],
      interpolation: true,
      useImageSize: false
    },
    size: [25, 0, 200, 1]
  },
  edges: {
    arrows: {
      to: {
        enabled: false,
        scaleFactor: [1, 0, 3, 0.05],
        type: "arrow"
      },
      middle: {
        enabled: false,
        scaleFactor: [1, 0, 3, 0.05],
        type: "arrow"
      },
      from: {
        enabled: false,
        scaleFactor: [1, 0, 3, 0.05],
        type: "arrow"
      }
    },
    endPointOffset: {
      from: [0, -10, 10, 1],
      to: [0, -10, 10, 1]
    },
    arrowStrikethrough: true,
    color: {
      color: ["color", "#848484"],
      highlight: ["color", "#848484"],
      hover: ["color", "#848484"],
      inherit: ["from", "to", "both", true, false],
      opacity: [1, 0, 1, 0.05]
    },
    dashes: false,
    font: {
      color: ["color", "#343434"],
      size: [14, 0, 100, 1],
      face: ["arial", "verdana", "tahoma"],
      background: ["color", "none"],
      strokeWidth: [2, 0, 50, 1],
      strokeColor: ["color", "#ffffff"],
      align: ["horizontal", "top", "middle", "bottom"]
    },
    hidden: false,
    hoverWidth: [1.5, 0, 5, 0.1],
    labelHighlightBold: true,
    physics: true,
    scaling: {
      min: [1, 0, 100, 1],
      max: [15, 0, 100, 1],
      label: {
        enabled: true,
        min: [14, 0, 200, 1],
        max: [30, 0, 200, 1],
        maxVisible: [30, 0, 200, 1],
        drawThreshold: [5, 0, 20, 1]
      }
    },
    selectionWidth: [1.5, 0, 5, 0.1],
    selfReferenceSize: [20, 0, 200, 1],
    selfReference: {
      size: [20, 0, 200, 1],
      angle: [Math.PI / 2, -6 * Math.PI, 6 * Math.PI, Math.PI / 8],
      renderBehindTheNode: true
    },
    shadow: {
      enabled: false,
      color: "rgba(0,0,0,0.5)",
      size: [10, 0, 20, 1],
      x: [5, -30, 30, 1],
      y: [5, -30, 30, 1]
    },
    smooth: {
      enabled: true,
      type: ["dynamic", "continuous", "discrete", "diagonalCross", "straightCross", "horizontal", "vertical", "curvedCW", "curvedCCW", "cubicBezier"],
      forceDirection: ["horizontal", "vertical", "none"],
      roundness: [0.5, 0, 1, 0.05]
    },
    width: [1, 0, 30, 1]
  },
  layout: {
    //randomSeed: [0, 0, 500, 1],
    //improvedLayout: true,
    hierarchical: {
      enabled: false,
      levelSeparation: [150, 20, 500, 5],
      nodeSpacing: [100, 20, 500, 5],
      treeSpacing: [200, 20, 500, 5],
      blockShifting: true,
      edgeMinimization: true,
      parentCentralization: true,
      direction: ["UD", "DU", "LR", "RL"],
      sortMethod: ["hubsize", "directed"],
      shakeTowards: ["leaves", "roots"] // leaves, roots
    }
  },

interaction: {
    dragNodes: true,
    dragView: true,
    hideEdgesOnDrag: false,
    hideEdgesOnZoom: false,
    hideNodesOnDrag: false,
    hover: false,
    keyboard: {
      enabled: false,
      speed: {
        x: [10, 0, 40, 1],
        y: [10, 0, 40, 1],
        zoom: [0.02, 0, 0.1, 0.005]
      },
      bindToWindow: true,
      autoFocus: true
    },
    multiselect: false,
    navigationButtons: false,
    selectable: true,
    selectConnectedEdges: true,
    hoverConnectedEdges: true,
    tooltipDelay: [300, 0, 1000, 25],
    zoomView: true,
    zoomSpeed: [1, 0.1, 2, 0.1]
  },
  manipulation: {
    enabled: false,
    initiallyActive: false
  },
  physics: {
    enabled: true,
    barnesHut: {
      theta: [0.5, 0.1, 1, 0.05],
      gravitationalConstant: [-2000, -30000, 0, 50],
      centralGravity: [0.3, 0, 10, 0.05],
      springLength: [95, 0, 500, 5],
      springConstant: [0.04, 0, 1.2, 0.005],
      damping: [0.09, 0, 1, 0.01],
      avoidOverlap: [0, 0, 1, 0.01]
    },
    forceAtlas2Based: {
      theta: [0.5, 0.1, 1, 0.05],
      gravitationalConstant: [-50, -500, 0, 1],
      centralGravity: [0.01, 0, 1, 0.005],
      springLength: [95, 0, 500, 5],
      springConstant: [0.08, 0, 1.2, 0.005],
      damping: [0.4, 0, 1, 0.01],
      avoidOverlap: [0, 0, 1, 0.01]
    },
    repulsion: {
      centralGravity: [0.2, 0, 10, 0.05],
      springLength: [200, 0, 500, 5],
      springConstant: [0.05, 0, 1.2, 0.005],
      nodeDistance: [100, 0, 500, 5],
      damping: [0.09, 0, 1, 0.01]
    },
    hierarchicalRepulsion: {
      centralGravity: [0.2, 0, 10, 0.05],
      springLength: [100, 0, 500, 5],
      springConstant: [0.01, 0, 1.2, 0.005],
      nodeDistance: [120, 0, 500, 5],
      damping: [0.09, 0, 1, 0.01],
      avoidOverlap: [0, 0, 1, 0.01]
    },
    maxVelocity: [50, 0, 150, 1],
    minVelocity: [0.1, 0.01, 0.5, 0.01],
    solver: ["barnesHut", "forceAtlas2Based", "repulsion", "hierarchicalRepulsion"],
    timestep: [0.5, 0.01, 1, 0.01],
    wind: {
      x: [0, -10, 10, 0.1],
      y: [0, -10, 10, 0.1]
    }
    //adaptiveTimestep: true
  }
};

var configuratorHideOption = function configuratorHideOption(parentPath, optionName, options) {
  var _context;
  if (_includesInstanceProperty(parentPath).call(parentPath, "physics") && _includesInstanceProperty(_context = configureOptions.physics.solver).call(_context, optionName) && options.physics.solver !== optionName && optionName !== "wind") {
    return true;
  }
  return false;
};

/**
 *  The Floyd–Warshall algorithm is an algorithm for finding shortest paths in
 *  a weighted graph with positive or negative edge weights (but with no negative
 *  cycles). - https://en.wikipedia.org/wiki/Floyd–Warshall_algorithm
 */
var FloydWarshall = /*#__PURE__*/function () {
  /**
   * @ignore
   */
  function FloydWarshall() {
    _classCallCheck(this, FloydWarshall);
  }

/**
   *
   * @param {object} body
   * @param {Array.<Node>} nodesArray
   * @param {Array.<Edge>} edgesArray
   * @returns {{}}
   */
  _createClass(FloydWarshall, [{
    key: "getDistances",
    value: function getDistances(body, nodesArray, edgesArray) {
      var D_matrix = {};
      var edges = body.edges;

// prepare matrix with large numbers
      for (var i = 0; i < nodesArray.length; i++) {
        var node = nodesArray[i];
        var cell = {};
        D_matrix[node] = cell;
        for (var j = 0; j < nodesArray.length; j++) {
          cell[nodesArray[j]] = i == j ? 0 : 1e9;
        }
      }

// put the weights for the edges in. This assumes unidirectionality.
      for (var _i = 0; _i < edgesArray.length; _i++) {
        var edge = edges[edgesArray[_i]];
        // edge has to be connected if it counts to the distances. If it is connected to inner clusters it will crash so we also check if it is in the D_matrix
        if (edge.connected === true && D_matrix[edge.fromId] !== undefined && D_matrix[edge.toId] !== undefined) {
          D_matrix[edge.fromId][edge.toId] = 1;
          D_matrix[edge.toId][edge.fromId] = 1;
        }
      }
      var nodeCount = nodesArray.length;

// Adapted FloydWarshall based on unidirectionality to greatly reduce complexity.
      for (var k = 0; k < nodeCount; k++) {
        var knode = nodesArray[k];
        var kcolm = D_matrix[knode];
        for (var _i2 = 0; _i2 < nodeCount - 1; _i2++) {
          var inode = nodesArray[_i2];
          var icolm = D_matrix[inode];
          for (var _j = _i2 + 1; _j < nodeCount; _j++) {
            var jnode = nodesArray[_j];
            var jcolm = D_matrix[jnode];
            var val = Math.min(icolm[jnode], icolm[knode] + kcolm[jnode]);
            icolm[jnode] = val;
            jcolm[inode] = val;
          }
        }
      }
      return D_matrix;
    }
  }]);
  return FloydWarshall;
}();

/**
 * KamadaKawai positions the nodes initially based on
 *
 * "AN ALGORITHM FOR DRAWING GENERAL UNDIRECTED GRAPHS"
 * -- Tomihisa KAMADA and Satoru KAWAI in 1989
 *
 * Possible optimizations in the distance calculation can be implemented.
 */
var KamadaKawai = /*#__PURE__*/function () {
  /**
   * @param {object} body
   * @param {number} edgeLength
   * @param {number} edgeStrength
   */
  function KamadaKawai(body, edgeLength, edgeStrength) {
    _classCallCheck(this, KamadaKawai);
    this.body = body;
    this.springLength = edgeLength;
    this.springConstant = edgeStrength;
    this.distanceSolver = new FloydWarshall();
  }

/**
   * Not sure if needed but can be used to update the spring length and spring constant
   *
   * @param {object} options
   */
  _createClass(KamadaKawai, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options) {
        if (options.springLength) {
          this.springLength = options.springLength;
        }
        if (options.springConstant) {
          this.springConstant = options.springConstant;
        }
      }
    }

/**
     * Position the system
     *
     * @param {Array.<Node>} nodesArray
     * @param {Array.<vis.Edge>} edgesArray
     * @param {boolean} [ignoreClusters=false]
     */
  }, {
    key: "solve",
    value: function solve(nodesArray, edgesArray) {
      var ignoreClusters = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      // get distance matrix
      var D_matrix = this.distanceSolver.getDistances(this.body, nodesArray, edgesArray); // distance matrix

// get the L Matrix
      this._createL_matrix(D_matrix);

// get the K Matrix
      this._createK_matrix(D_matrix);

// initial E Matrix
      this._createE_matrix();

// calculate positions
      var threshold = 0.01;
      var innerThreshold = 1;
      var iterations = 0;
      var maxIterations = Math.max(1000, Math.min(10 * this.body.nodeIndices.length, 6000));
      var maxInnerIterations = 5;
      var maxEnergy = 1e9;
      var highE_nodeId = 0,
        dE_dx = 0,
        dE_dy = 0,
        delta_m = 0,
        subIterations = 0;
      while (maxEnergy > threshold && iterations < maxIterations) {
        iterations += 1;
        var _this$_getHighestEner = this._getHighestEnergyNode(ignoreClusters);
        var _this$_getHighestEner2 = _slicedToArray(_this$_getHighestEner, 4);
        highE_nodeId = _this$_getHighestEner2[0];
        maxEnergy = _this$_getHighestEner2[1];
        dE_dx = _this$_getHighestEner2[2];
        dE_dy = _this$_getHighestEner2[3];
        delta_m = maxEnergy;
        subIterations = 0;
        while (delta_m > innerThreshold && subIterations < maxInnerIterations) {
          subIterations += 1;
          this._moveNode(highE_nodeId, dE_dx, dE_dy);
          var _this$_getEnergy = this._getEnergy(highE_nodeId);
          var _this$_getEnergy2 = _slicedToArray(_this$_getEnergy, 3);
          delta_m = _this$_getEnergy2[0];
          dE_dx = _this$_getEnergy2[1];
          dE_dy = _this$_getEnergy2[2];
        }
      }
    }

/**
     * get the node with the highest energy
     *
     * @param {boolean} ignoreClusters
     * @returns {number[]}
     * @private
     */
  }, {
    key: "_getHighestEnergyNode",
    value: function _getHighestEnergyNode(ignoreClusters) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var maxEnergy = 0;
      var maxEnergyNodeId = nodesArray[0];
      var dE_dx_max = 0,
        dE_dy_max = 0;
      for (var nodeIdx = 0; nodeIdx < nodesArray.length; nodeIdx++) {
        var m = nodesArray[nodeIdx];
        // by not evaluating nodes with predefined positions we should only move nodes that have no positions.
        if (nodes[m].predefinedPosition !== true || nodes[m].isCluster === true && ignoreClusters === true || nodes[m].options.fixed.x !== true || nodes[m].options.fixed.y !== true) {
          var _this$_getEnergy3 = this._getEnergy(m),
            _this$_getEnergy4 = _slicedToArray(_this$_getEnergy3, 3),
            delta_m = _this$_getEnergy4[0],
            dE_dx = _this$_getEnergy4[1],
            dE_dy = _this$_getEnergy4[2];
          if (maxEnergy < delta_m) {
            maxEnergy = delta_m;
            maxEnergyNodeId = m;
            dE_dx_max = dE_dx;
            dE_dy_max = dE_dy;
          }
        }
      }
      return [maxEnergyNodeId, maxEnergy, dE_dx_max, dE_dy_max];
    }

/**
     * calculate the energy of a single node
     *
     * @param {Node.id} m
     * @returns {number[]}
     * @private
     */
  }, {
    key: "_getEnergy",
    value: function _getEnergy(m) {
      var _this$E_sums$m = _slicedToArray(this.E_sums[m], 2),
        dE_dx = _this$E_sums$m[0],
        dE_dy = _this$E_sums$m[1];
      var delta_m = Math.sqrt(Math.pow(dE_dx, 2) + Math.pow(dE_dy, 2));
      return [delta_m, dE_dx, dE_dy];
    }

/**
     * move the node based on it's energy
     * the dx and dy are calculated from the linear system proposed by Kamada and Kawai
     *
     * @param {number} m
     * @param {number} dE_dx
     * @param {number} dE_dy
     * @private
     */
  }, {
    key: "_moveNode",
    value: function _moveNode(m, dE_dx, dE_dy) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var d2E_dx2 = 0;
      var d2E_dxdy = 0;
      var d2E_dy2 = 0;
      var x_m = nodes[m].x;
      var y_m = nodes[m].y;
      var km = this.K_matrix[m];
      var lm = this.L_matrix[m];
      for (var iIdx = 0; iIdx < nodesArray.length; iIdx++) {
        var i = nodesArray[iIdx];
        if (i !== m) {
          var x_i = nodes[i].x;
          var y_i = nodes[i].y;
          var kmat = km[i];
          var lmat = lm[i];
          var denominator = 1.0 / Math.pow(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2), 1.5);
          d2E_dx2 += kmat * (1 - lmat * Math.pow(y_m - y_i, 2) * denominator);
          d2E_dxdy += kmat * (lmat * (x_m - x_i) * (y_m - y_i) * denominator);
          d2E_dy2 += kmat * (1 - lmat * Math.pow(x_m - x_i, 2) * denominator);
        }
      }
      // make the variable names easier to make the solving of the linear system easier to read
      var A = d2E_dx2,
        B = d2E_dxdy,
        C = dE_dx,
        D = d2E_dy2,
        E = dE_dy;

// solve the linear system for dx and dy
      var dy = (C / A + E / B) / (B / A - D / B);
      var dx = -(B * dy + C) / A;

// move the node
      nodes[m].x += dx;
      nodes[m].y += dy;

// Recalculate E_matrix (should be incremental)
      this._updateE_matrix(m);
    }

/**
     * Create the L matrix: edge length times shortest path
     *
     * @param {object} D_matrix
     * @private
     */
  }, {
    key: "_createL_matrix",
    value: function _createL_matrix(D_matrix) {
      var nodesArray = this.body.nodeIndices;
      var edgeLength = this.springLength;
      this.L_matrix = [];
      for (var i = 0; i < nodesArray.length; i++) {
        this.L_matrix[nodesArray[i]] = {};
        for (var j = 0; j < nodesArray.length; j++) {
          this.L_matrix[nodesArray[i]][nodesArray[j]] = edgeLength * D_matrix[nodesArray[i]][nodesArray[j]];
        }
      }
    }

/**
     * Create the K matrix: spring constants times shortest path
     *
     * @param {object} D_matrix
     * @private
     */
  }, {
    key: "_createK_matrix",
    value: function _createK_matrix(D_matrix) {
      var nodesArray = this.body.nodeIndices;
      var edgeStrength = this.springConstant;
      this.K_matrix = [];
      for (var i = 0; i < nodesArray.length; i++) {
        this.K_matrix[nodesArray[i]] = {};
        for (var j = 0; j < nodesArray.length; j++) {
          this.K_matrix[nodesArray[i]][nodesArray[j]] = edgeStrength * Math.pow(D_matrix[nodesArray[i]][nodesArray[j]], -2);
        }
      }
    }

/**
     *  Create matrix with all energies between nodes
     *
     *  @private
     */
  }, {
    key: "_createE_matrix",
    value: function _createE_matrix() {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      this.E_matrix = {};
      this.E_sums = {};
      for (var mIdx = 0; mIdx < nodesArray.length; mIdx++) {
        this.E_matrix[nodesArray[mIdx]] = [];
      }
      for (var _mIdx = 0; _mIdx < nodesArray.length; _mIdx++) {
        var m = nodesArray[_mIdx];
        var x_m = nodes[m].x;
        var y_m = nodes[m].y;
        var dE_dx = 0;
        var dE_dy = 0;
        for (var iIdx = _mIdx; iIdx < nodesArray.length; iIdx++) {
          var i = nodesArray[iIdx];
          if (i !== m) {
            var x_i = nodes[i].x;
            var y_i = nodes[i].y;
            var denominator = 1.0 / Math.sqrt(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2));
            this.E_matrix[m][iIdx] = [this.K_matrix[m][i] * (x_m - x_i - this.L_matrix[m][i] * (x_m - x_i) * denominator), this.K_matrix[m][i] * (y_m - y_i - this.L_matrix[m][i] * (y_m - y_i) * denominator)];
            this.E_matrix[i][_mIdx] = this.E_matrix[m][iIdx];
            dE_dx += this.E_matrix[m][iIdx][0];
            dE_dy += this.E_matrix[m][iIdx][1];
          }
        }
        //Store sum
        this.E_sums[m] = [dE_dx, dE_dy];
      }
    }

/**
     * Update method, just doing single column (rows are auto-updated) (update all sums)
     *
     * @param {number} m
     * @private
     */
  }, {
    key: "_updateE_matrix",
    value: function _updateE_matrix(m) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var colm = this.E_matrix[m];
      var kcolm = this.K_matrix[m];
      var lcolm = this.L_matrix[m];
      var x_m = nodes[m].x;
      var y_m = nodes[m].y;
      var dE_dx = 0;
      var dE_dy = 0;
      for (var iIdx = 0; iIdx < nodesArray.length; iIdx++) {
        var i = nodesArray[iIdx];
        if (i !== m) {
          //Keep old energy value for sum modification below
          var cell = colm[iIdx];
          var oldDx = cell[0];
          var oldDy = cell[1];

//Calc new energy:
          var x_i = nodes[i].x;
          var y_i = nodes[i].y;
          var denominator = 1.0 / Math.sqrt(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2));
          var dx = kcolm[i] * (x_m - x_i - lcolm[i] * (x_m - x_i) * denominator);
          var dy = kcolm[i] * (y_m - y_i - lcolm[i] * (y_m - y_i) * denominator);
          colm[iIdx] = [dx, dy];
          dE_dx += dx;
          dE_dy += dy;

//add new energy to sum of each column
          var sum = this.E_sums[i];
          sum[0] += dx - oldDx;
          sum[1] += dy - oldDy;
        }
      }
      //Store sum at -1 index
      this.E_sums[m] = [dE_dx, dE_dy];
    }
  }]);
  return KamadaKawai;
}();

/**
 * Create a network visualization, displaying nodes and edges.
 *
 * @param {Element} container   The DOM element in which the Network will
 *                                  be created. Normally a div element.
 * @param {object} data         An object containing parameters
 *                              {Array} nodes
 *                              {Array} edges
 * @param {object} options      Options
 * @class Network
 */
function Network(container, data, options) {
  var _context,
    _context2,
    _context3,
    _context4,
    _this = this;
  if (!(this instanceof Network)) {
    throw new SyntaxError("Constructor must be called with the new operator");
  }

// set constant values
  this.options = {};
  this.defaultOptions = {
    locale: "en",
    locales: locales,
    clickToUse: false
  };
  _Object$assign(this.options, this.defaultOptions);

/**
   * Containers for nodes and edges.
   *
   * 'edges' and 'nodes' contain the full definitions of all the network elements.
   * 'nodeIndices' and 'edgeIndices' contain the id's of the active elements.
   *
   * The distinction is important, because a defined node need not be active, i.e.
   * visible on the canvas. This happens in particular when clusters are defined, in
   * that case there will be nodes and edges not displayed.
   * The bottom line is that all code with actions related to visibility, *must* use
   * 'nodeIndices' and 'edgeIndices', not 'nodes' and 'edges' directly.
   */
  this.body = {
    container: container,
    // See comment above for following fields
    nodes: {},
    nodeIndices: [],
    edges: {},
    edgeIndices: [],
    emitter: {
      on: _bindInstanceProperty$1(_context = this.on).call(_context, this),
      off: _bindInstanceProperty$1(_context2 = this.off).call(_context2, this),
      emit: _bindInstanceProperty$1(_context3 = this.emit).call(_context3, this),
      once: _bindInstanceProperty$1(_context4 = this.once).call(_context4, this)
    },
    eventListeners: {
      onTap: function onTap() {},
      onTouch: function onTouch() {},
      onDoubleTap: function onDoubleTap() {},
      onHold: function onHold() {},
      onDragStart: function onDragStart() {},
      onDrag: function onDrag() {},
      onDragEnd: function onDragEnd() {},
      onMouseWheel: function onMouseWheel() {},
      onPinch: function onPinch() {},
      onMouseMove: function onMouseMove() {},
      onRelease: function onRelease() {},
      onContext: function onContext() {}
    },
    data: {
      nodes: null,
      // A DataSet or DataView
      edges: null // A DataSet or DataView
    },

functions: {
      createNode: function createNode() {},
      createEdge: function createEdge() {},
      getPointer: function getPointer() {}
    },
    modules: {},
    view: {
      scale: 1,
      translation: {
        x: 0,
        y: 0
      }
    },
    selectionBox: {
      show: false,
      position: {
        start: {
          x: 0,
          y: 0
        },
        end: {
          x: 0,
          y: 0
        }
      }
    }
  };

// bind the event listeners
  this.bindEventListeners();

// setting up all modules
  this.images = new Images(function () {
    return _this.body.emitter.emit("_requestRedraw");
  }); // object with images
  this.groups = new Groups(); // object with groups
  this.canvas = new Canvas(this.body); // DOM handler
  this.selectionHandler = new SelectionHandler(this.body, this.canvas); // Selection handler
  this.interactionHandler = new InteractionHandler(this.body, this.canvas, this.selectionHandler); // Interaction handler handles all the hammer bindings (that are bound by canvas), key
  this.view = new View(this.body, this.canvas); // camera handler, does animations and zooms
  this.renderer = new CanvasRenderer(this.body, this.canvas); // renderer, starts renderloop, has events that modules can hook into
  this.physics = new PhysicsEngine(this.body); // physics engine, does all the simulations
  this.layoutEngine = new LayoutEngine(this.body); // layout engine for inital layout and hierarchical layout
  this.clustering = new ClusterEngine(this.body); // clustering api
  this.manipulation = new ManipulationSystem(this.body, this.canvas, this.selectionHandler, this.interactionHandler); // data manipulation system

this.nodesHandler = new NodesHandler(this.body, this.images, this.groups, this.layoutEngine); // Handle adding, deleting and updating of nodes as well as global options
  this.edgesHandler = new EdgesHandler(this.body, this.images, this.groups); // Handle adding, deleting and updating of edges as well as global options

this.body.modules["kamadaKawai"] = new KamadaKawai(this.body, 150, 0.05); // Layouting algorithm.
  this.body.modules["clustering"] = this.clustering;

// create the DOM elements
  this.canvas._create();

// apply options
  this.setOptions(options);

// load data (the disable start variable will be the same as the enabled clustering)
  this.setData(data);
}

// Extend Network with an Emitter mixin
Emitter(Network.prototype);

/**
 * Set options
 *
 * @param {object} options
 */
Network.prototype.setOptions = function (options) {
  var _this2 = this;
  if (options === null) {
    options = undefined; // This ensures that options handling doesn't crash in the handling
  }

if (options !== undefined) {
    var errorFound = Validator.validate(options, allOptions);
    if (errorFound === true) {
      console.error("%cErrors have been found in the supplied options object.", VALIDATOR_PRINT_STYLE);
    }

// copy the global fields over
    var fields = ["locale", "locales", "clickToUse"];
    selectiveDeepExtend(fields, this.options, options);

// normalize the locale or use English
    if (options.locale !== undefined) {
      options.locale = normalizeLanguageCode(options.locales || this.options.locales, options.locale);
    }

// the hierarchical system can adapt the edges and the physics to it's own options because not all combinations work with the hierarichical system.
    options = this.layoutEngine.setOptions(options.layout, options);
    this.canvas.setOptions(options); // options for canvas are in globals

// pass the options to the modules
    this.groups.setOptions(options.groups);
    this.nodesHandler.setOptions(options.nodes);
    this.edgesHandler.setOptions(options.edges);
    this.physics.setOptions(options.physics);
    this.manipulation.setOptions(options.manipulation, options, this.options); // manipulation uses the locales in the globals

this.interactionHandler.setOptions(options.interaction);
    this.renderer.setOptions(options.interaction); // options for rendering are in interaction
    this.selectionHandler.setOptions(options.interaction); // options for selection are in interaction

// reload the settings of the nodes to apply changes in groups that are not referenced by pointer.
    if (options.groups !== undefined) {
      this.body.emitter.emit("refreshNodes");
    }
    // these two do not have options at the moment, here for completeness
    //this.view.setOptions(options.view);
    //this.clustering.setOptions(options.clustering);

if ("configure" in options) {
      if (!this.configurator) {
        this.configurator = new Configurator(this, this.body.container, configureOptions, this.canvas.pixelRatio, configuratorHideOption);
      }
      this.configurator.setOptions(options.configure);
    }

// if the configuration system is enabled, copy all options and put them into the config system
    if (this.configurator && this.configurator.options.enabled === true) {
      var networkOptions = {
        nodes: {},
        edges: {},
        layout: {},
        interaction: {},
        manipulation: {},
        physics: {},
        global: {}
      };
      deepExtend(networkOptions.nodes, this.nodesHandler.options);
      deepExtend(networkOptions.edges, this.edgesHandler.options);
      deepExtend(networkOptions.layout, this.layoutEngine.options);
      // load the selectionHandler and render default options in to the interaction group
      deepExtend(networkOptions.interaction, this.selectionHandler.options);
      deepExtend(networkOptions.interaction, this.renderer.options);
      deepExtend(networkOptions.interaction, this.interactionHandler.options);
      deepExtend(networkOptions.manipulation, this.manipulation.options);
      deepExtend(networkOptions.physics, this.physics.options);

// load globals into the global object
      deepExtend(networkOptions.global, this.canvas.options);
      deepExtend(networkOptions.global, this.options);
      this.configurator.setModuleOptions(networkOptions);
    }

// handle network global options
    if (options.clickToUse !== undefined) {
      if (options.clickToUse === true) {
        if (this.activator === undefined) {
          this.activator = new Activator(this.canvas.frame);
          this.activator.on("change", function () {
            _this2.body.emitter.emit("activate");
          });
        }
      } else {
        if (this.activator !== undefined) {
          this.activator.destroy();
          delete this.activator;
        }
        this.body.emitter.emit("activate");
      }
    } else {
      this.body.emitter.emit("activate");
    }
    this.canvas.setSize();
    // start the physics simulation. Can be safely called multiple times.
    this.body.emitter.emit("startSimulation");
  }
};

/**
 * Update the visible nodes and edges list with the most recent node state.
 *
 * Visible nodes are stored in this.body.nodeIndices.
 * Visible edges are stored in this.body.edgeIndices.
 * A node or edges is visible if it is not hidden or clustered.
 *
 * @private
 */
Network.prototype._updateVisibleIndices = function () {
  var nodes = this.body.nodes;
  var edges = this.body.edges;
  this.body.nodeIndices = [];
  this.body.edgeIndices = [];
  for (var nodeId in nodes) {
    if (Object.prototype.hasOwnProperty.call(nodes, nodeId)) {
      if (!this.clustering._isClusteredNode(nodeId) && nodes[nodeId].options.hidden === false) {
        this.body.nodeIndices.push(nodes[nodeId].id);
      }
    }
  }
  for (var edgeId in edges) {
    if (Object.prototype.hasOwnProperty.call(edges, edgeId)) {
      var edge = edges[edgeId];

// It can happen that this is executed *after* a node edge has been removed,
      // but *before* the edge itself has been removed. Taking this into account.
      var fromNode = nodes[edge.fromId];
      var toNode = nodes[edge.toId];
      var edgeNodesPresent = fromNode !== undefined && toNode !== undefined;
      var isVisible = !this.clustering._isClusteredEdge(edgeId) && edge.options.hidden === false && edgeNodesPresent && fromNode.options.hidden === false &&
      // Also hidden if any of its connecting nodes are hidden
      toNode.options.hidden === false; // idem

if (isVisible) {
        this.body.edgeIndices.push(edge.id);
      }
    }
  }
};

/**
 * Bind all events
 */
Network.prototype.bindEventListeners = function () {
  var _this3 = this;
  // This event will trigger a rebuilding of the cache everything.
  // Used when nodes or edges have been added or removed.
  this.body.emitter.on("_dataChanged", function () {
    _this3.edgesHandler._updateState();
    _this3.body.emitter.emit("_dataUpdated");
  });

// this is called when options of EXISTING nodes or edges have changed.
  this.body.emitter.on("_dataUpdated", function () {
    // Order important in following block
    _this3.clustering._updateState();
    _this3._updateVisibleIndices();
    _this3._updateValueRange(_this3.body.nodes);
    _this3._updateValueRange(_this3.body.edges);
    // start simulation (can be called safely, even if already running)
    _this3.body.emitter.emit("startSimulation");
    _this3.body.emitter.emit("_requestRedraw");
  });
};

/**
 * Set nodes and edges, and optionally options as well.
 *
 * @param {object} data              Object containing parameters:
 *                                   {Array | DataSet | DataView} [nodes] Array with nodes
 *                                   {Array | DataSet | DataView} [edges] Array with edges
 *                                   {String} [dot] String containing data in DOT format
 *                                   {String} [gephi] String containing data in gephi JSON format
 *                                   {Options} [options] Object with options
 */
Network.prototype.setData = function (data) {
  // reset the physics engine.
  this.body.emitter.emit("resetPhysics");
  this.body.emitter.emit("_resetData");

// unselect all to ensure no selections from old data are carried over.
  this.selectionHandler.unselectAll();
  if (data && data.dot && (data.nodes || data.edges)) {
    throw new SyntaxError('Data must contain either parameter "dot" or ' + ' parameter pair "nodes" and "edges", but not both.');
  }

// set options
  this.setOptions(data && data.options);
  // set all data
  if (data && data.dot) {
    console.warn("The dot property has been deprecated. Please use the static convertDot method to convert DOT into vis.network format and use the normal data format with nodes and edges. This converter is used like this: var data = vis.network.convertDot(dotString);");
    // parse DOT file
    var dotData = DOTToGraph(data.dot);
    this.setData(dotData);
    return;
  } else if (data && data.gephi) {
    // parse DOT file
    console.warn("The gephi property has been deprecated. Please use the static convertGephi method to convert gephi into vis.network format and use the normal data format with nodes and edges. This converter is used like this: var data = vis.network.convertGephi(gephiJson);");
    var gephiData = parseGephi(data.gephi);
    this.setData(gephiData);
    return;
  } else {
    this.nodesHandler.setData(data && data.nodes, true);
    this.edgesHandler.setData(data && data.edges, true);
  }

// emit change in data
  this.body.emitter.emit("_dataChanged");

// emit data loaded
  this.body.emitter.emit("_dataLoaded");

// find a stable position or start animating to a stable position
  this.body.emitter.emit("initPhysics");
};

/**
 * Cleans up all bindings of the network, removing it fully from the memory IF the variable is set to null after calling this function.
 * var network = new vis.Network(..);
 * network.destroy();
 * network = null;
 */
Network.prototype.destroy = function () {
  this.body.emitter.emit("destroy");
  // clear events
  this.body.emitter.off();
  this.off();

// delete modules
  delete this.groups;
  delete this.canvas;
  delete this.selectionHandler;
  delete this.interactionHandler;
  delete this.view;
  delete this.renderer;
  delete this.physics;
  delete this.layoutEngine;
  delete this.clustering;
  delete this.manipulation;
  delete this.nodesHandler;
  delete this.edgesHandler;
  delete this.configurator;
  delete this.images;
  for (var nodeId in this.body.nodes) {
    if (!Object.prototype.hasOwnProperty.call(this.body.nodes, nodeId)) continue;
    delete this.body.nodes[nodeId];
  }
  for (var edgeId in this.body.edges) {
    if (!Object.prototype.hasOwnProperty.call(this.body.edges, edgeId)) continue;
    delete this.body.edges[edgeId];
  }

// remove the container and everything inside it recursively
  recursiveDOMDelete(this.body.container);
};

/**
 * Update the values of all object in the given array according to the current
 * value range of the objects in the array.
 *
 * @param {object} obj    An object containing a set of Edges or Nodes
 *                        The objects must have a method getValue() and
 *                        setValueRange(min, max).
 * @private
 */
Network.prototype._updateValueRange = function (obj) {
  var id;

// determine the range of the objects
  var valueMin = undefined;
  var valueMax = undefined;
  var valueTotal = 0;
  for (id in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, id)) {
      var value = obj[id].getValue();
      if (value !== undefined) {
        valueMin = valueMin === undefined ? value : Math.min(value, valueMin);
        valueMax = valueMax === undefined ? value : Math.max(value, valueMax);
        valueTotal += value;
      }
    }
  }

// adjust the range of all objects
  if (valueMin !== undefined && valueMax !== undefined) {
    for (id in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, id)) {
        obj[id].setValueRange(valueMin, valueMax, valueTotal);
      }
    }
  }
};

/**
 * Returns true when the Network is active.
 *
 * @returns {boolean}
 */
Network.prototype.isActive = function () {
  return !this.activator || this.activator.active;
};
Network.prototype.setSize = function () {
  return this.canvas.setSize.apply(this.canvas, arguments);
};
Network.prototype.canvasToDOM = function () {
  return this.canvas.canvasToDOM.apply(this.canvas, arguments);
};
Network.prototype.DOMtoCanvas = function () {
  return this.canvas.DOMtoCanvas.apply(this.canvas, arguments);
};

/**
 * Nodes can be in clusters. Clusters can also be in clusters. This function returns and array of
 * nodeIds showing where the node is.
 *
 * If any nodeId in the chain, especially the first passed in as a parameter, is not present in
 * the current nodes list, an empty array is returned.
 *
 * Example:
 * cluster 'A' contains cluster 'B',
 * cluster 'B' contains cluster 'C',
 * cluster 'C' contains node 'fred'.
 * `jsnetwork.clustering.findNode('fred')` will return `['A','B','C','fred']`.
 *
 * @param {string|number} nodeId
 * @returns {Array}
 */
Network.prototype.findNode = function () {
  return this.clustering.findNode.apply(this.clustering, arguments);
};
Network.prototype.isCluster = function () {
  return this.clustering.isCluster.apply(this.clustering, arguments);
};
Network.prototype.openCluster = function () {
  return this.clustering.openCluster.apply(this.clustering, arguments);
};
Network.prototype.cluster = function () {
  return this.clustering.cluster.apply(this.clustering, arguments);
};
Network.prototype.getNodesInCluster = function () {
  return this.clustering.getNodesInCluster.apply(this.clustering, arguments);
};
Network.prototype.clusterByConnection = function () {
  return this.clustering.clusterByConnection.apply(this.clustering, arguments);
};
Network.prototype.clusterByHubsize = function () {
  return this.clustering.clusterByHubsize.apply(this.clustering, arguments);
};
Network.prototype.updateClusteredNode = function () {
  return this.clustering.updateClusteredNode.apply(this.clustering, arguments);
};
Network.prototype.getClusteredEdges = function () {
  return this.clustering.getClusteredEdges.apply(this.clustering, arguments);
};
Network.prototype.getBaseEdge = function () {
  return this.clustering.getBaseEdge.apply(this.clustering, arguments);
};
Network.prototype.getBaseEdges = function () {
  return this.clustering.getBaseEdges.apply(this.clustering, arguments);
};
Network.prototype.updateEdge = function () {
  return this.clustering.updateEdge.apply(this.clustering, arguments);
};

/**
 * This method will cluster all nodes with 1 edge with their respective connected node.
 * The options object is explained in full <a data-scroll="" data-options="{ &quot;easing&quot;: &quot;easeInCubic&quot; }" href="#optionsObject">below</a>.
 *
 * @param {object} [options]
 * @returns {undefined}
 */
Network.prototype.clusterOutliers = function () {
  return this.clustering.clusterOutliers.apply(this.clustering, arguments);
};
Network.prototype.getSeed = function () {
  return this.layoutEngine.getSeed.apply(this.layoutEngine, arguments);
};
Network.prototype.enableEditMode = function () {
  return this.manipulation.enableEditMode.apply(this.manipulation, arguments);
};
Network.prototype.disableEditMode = function () {
  return this.manipulation.disableEditMode.apply(this.manipulation, arguments);
};
Network.prototype.addNodeMode = function () {
  return this.manipulation.addNodeMode.apply(this.manipulation, arguments);
};
Network.prototype.editNode = function () {
  return this.manipulation.editNode.apply(this.manipulation, arguments);
};
Network.prototype.editNodeMode = function () {
  console.warn("Deprecated: Please use editNode instead of editNodeMode.");
  return this.manipulation.editNode.apply(this.manipulation, arguments);
};
Network.prototype.addEdgeMode = function () {
  return this.manipulation.addEdgeMode.apply(this.manipulation, arguments);
};
Network.prototype.editEdgeMode = function () {
  return this.manipulation.editEdgeMode.apply(this.manipulation, arguments);
};
Network.prototype.deleteSelected = function () {
  return this.manipulation.deleteSelected.apply(this.manipulation, arguments);
};
Network.prototype.getPositions = function () {
  return this.nodesHandler.getPositions.apply(this.nodesHandler, arguments);
};
Network.prototype.getPosition = function () {
  return this.nodesHandler.getPosition.apply(this.nodesHandler, arguments);
};
Network.prototype.storePositions = function () {
  return this.nodesHandler.storePositions.apply(this.nodesHandler, arguments);
};
Network.prototype.moveNode = function () {
  return this.nodesHandler.moveNode.apply(this.nodesHandler, arguments);
};
Network.prototype.getBoundingBox = function () {
  return this.nodesHandler.getBoundingBox.apply(this.nodesHandler, arguments);
};
Network.prototype.getConnectedNodes = function (objectId) {
  if (this.body.nodes[objectId] !== undefined) {
    return this.nodesHandler.getConnectedNodes.apply(this.nodesHandler, arguments);
  } else {
    return this.edgesHandler.getConnectedNodes.apply(this.edgesHandler, arguments);
  }
};
Network.prototype.getConnectedEdges = function () {
  return this.nodesHandler.getConnectedEdges.apply(this.nodesHandler, arguments);
};
Network.prototype.startSimulation = function () {
  return this.physics.startSimulation.apply(this.physics, arguments);
};
Network.prototype.stopSimulation = function () {
  return this.physics.stopSimulation.apply(this.physics, arguments);
};
Network.prototype.stabilize = function () {
  return this.physics.stabilize.apply(this.physics, arguments);
};
Network.prototype.getSelection = function () {
  return this.selectionHandler.getSelection.apply(this.selectionHandler, arguments);
};
Network.prototype.setSelection = function () {
  return this.selectionHandler.setSelection.apply(this.selectionHandler, arguments);
};
Network.prototype.getSelectedNodes = function () {
  return this.selectionHandler.getSelectedNodeIds.apply(this.selectionHandler, arguments);
};
Network.prototype.getSelectedEdges = function () {
  return this.selectionHandler.getSelectedEdgeIds.apply(this.selectionHandler, arguments);
};
Network.prototype.getNodeAt = function () {
  var node = this.selectionHandler.getNodeAt.apply(this.selectionHandler, arguments);
  if (node !== undefined && node.id !== undefined) {
    return node.id;
  }
  return node;
};
Network.prototype.getEdgeAt = function () {
  var edge = this.selectionHandler.getEdgeAt.apply(this.selectionHandler, arguments);
  if (edge !== undefined && edge.id !== undefined) {
    return edge.id;
  }
  return edge;
};
Network.prototype.selectNodes = function () {
  return this.selectionHandler.selectNodes.apply(this.selectionHandler, arguments);
};
Network.prototype.selectEdges = function () {
  return this.selectionHandler.selectEdges.apply(this.selectionHandler, arguments);
};
Network.prototype.unselectAll = function () {
  this.selectionHandler.unselectAll.apply(this.selectionHandler, arguments);
  this.selectionHandler.commitWithoutEmitting.apply(this.selectionHandler);
  this.redraw();
};
Network.prototype.redraw = function () {
  return this.renderer.redraw.apply(this.renderer, arguments);
};
Network.prototype.getScale = function () {
  return this.view.getScale.apply(this.view, arguments);
};
Network.prototype.getViewPosition = function () {
  return this.view.getViewPosition.apply(this.view, arguments);
};
Network.prototype.fit = function () {
  return this.view.fit.apply(this.view, arguments);
};
Network.prototype.moveTo = function () {
  return this.view.moveTo.apply(this.view, arguments);
};
Network.prototype.focus = function () {
  return this.view.focus.apply(this.view, arguments);
};
Network.prototype.releaseNode = function () {
  return this.view.releaseNode.apply(this.view, arguments);
};
Network.prototype.getOptionsFromConfigurator = function () {
  var options = {};
  if (this.configurator) {
    options = this.configurator.getOptions.apply(this.configurator);
  }
  return options;
};

/* Injected with object hook! */

const colors = Object.entries({
  vue: "#42b883",
  ts: "#41b1e0",
  js: "#d6cb2d",
  json: "#cf8f30",
  css: "#e6659a",
  html: "#e34c26",
  svelte: "#ff3e00",
  jsx: "#7d6fe8",
  tsx: "#7d6fe8"
}).map(([type, color]) => ({ type, color }));

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

/* Injected with object hook! */

var codemirror = {exports: {}};/* Injected with object hook! */

var hasRequiredCodemirror;

function requireCodemirror () {
	if (hasRequiredCodemirror) return codemirror.exports;
	hasRequiredCodemirror = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

// This is CodeMirror (https://codemirror.net/5), a code editor
		// implemented in JavaScript on top of the browser's DOM.
		//
		// You can find some technical background for some of the code below
		// at http://marijnhaverbeke.nl/blog/#cm-internals .

(function (global, factory) {
		  module.exports = factory() ;
		}(commonjsGlobal, (function () {
		  // Kludges for bugs and behavior differences that can't be feature
		  // detected are enabled based on userAgent etc sniffing.
		  var userAgent = navigator.userAgent;
		  var platform = navigator.platform;

var gecko = /gecko\/\d/i.test(userAgent);
		  var ie_upto10 = /MSIE \d/.test(userAgent);
		  var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
		  var edge = /Edge\/(\d+)/.exec(userAgent);
		  var ie = ie_upto10 || ie_11up || edge;
		  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]);
		  var webkit = !edge && /WebKit\//.test(userAgent);
		  var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
		  var chrome = !edge && /Chrome\/(\d+)/.exec(userAgent);
		  var chrome_version = chrome && +chrome[1];
		  var presto = /Opera\//.test(userAgent);
		  var safari = /Apple Computer/.test(navigator.vendor);
		  var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
		  var phantom = /PhantomJS/.test(userAgent);

var ios = safari && (/Mobile\/\w+/.test(userAgent) || navigator.maxTouchPoints > 2);
		  var android = /Android/.test(userAgent);
		  // This is woefully incomplete. Suggestions for alternative methods welcome.
		  var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
		  var mac = ios || /Mac/.test(platform);
		  var chromeOS = /\bCrOS\b/.test(userAgent);
		  var windows = /win/i.test(platform);

var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
		  if (presto_version) { presto_version = Number(presto_version[1]); }
		  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
		  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
		  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
		  var captureRightClick = gecko || (ie && ie_version >= 9);

function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }

var rmClass = function(node, cls) {
		    var current = node.className;
		    var match = classTest(cls).exec(current);
		    if (match) {
		      var after = current.slice(match.index + match[0].length);
		      node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
		    }
		  };

function removeChildren(e) {
		    for (var count = e.childNodes.length; count > 0; --count)
		      { e.removeChild(e.firstChild); }
		    return e
		  }

function removeChildrenAndAdd(parent, e) {
		    return removeChildren(parent).appendChild(e)
		  }

var range;
		  if (document.createRange) { range = function(node, start, end, endNode) {
		    var r = document.createRange();
		    r.setEnd(endNode || node, end);
		    r.setStart(node, start);
		    return r
		  }; }
		  else { range = function(node, start, end) {
		    var r = document.body.createTextRange();
		    try { r.moveToElementText(node.parentNode); }
		    catch(e) { return r }
		    r.collapse(true);
		    r.moveEnd("character", end);
		    r.moveStart("character", start);
		    return r
		  }; }

function contains(parent, child) {
		    if (child.nodeType == 3) // Android browser always returns false when child is a textnode
		      { child = child.parentNode; }
		    if (parent.contains)
		      { return parent.contains(child) }
		    do {
		      if (child.nodeType == 11) { child = child.host; }
		      if (child == parent) { return true }
		    } while (child = child.parentNode)
		  }

function doc(cm) { return cm.display.wrapper.ownerDocument }

function root(cm) {
		    return rootNode(cm.display.wrapper)
		  }

function rootNode(element) {
		    // Detect modern browsers (2017+).
		    return element.getRootNode ? element.getRootNode() : element.ownerDocument
		  }

function win(cm) { return doc(cm).defaultView }

function bind(f) {
		    var args = Array.prototype.slice.call(arguments, 1);
		    return function(){return f.apply(null, args)}
		  }

function copyObj(obj, target, overwrite) {
		    if (!target) { target = {}; }
		    for (var prop in obj)
		      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
		        { target[prop] = obj[prop]; } }
		    return target
		  }

// Counts the column offset in a string, taking tabs into account.
		  // Used mostly to find indentation.
		  function countColumn(string, end, tabSize, startIndex, startValue) {
		    if (end == null) {
		      end = string.search(/[^\s\u00a0]/);
		      if (end == -1) { end = string.length; }
		    }
		    for (var i = startIndex || 0, n = startValue || 0;;) {
		      var nextTab = string.indexOf("\t", i);
		      if (nextTab < 0 || nextTab >= end)
		        { return n + (end - i) }
		      n += nextTab - i;
		      n += tabSize - (n % tabSize);
		      i = nextTab + 1;
		    }
		  }

function indexOf(array, elt) {
		    for (var i = 0; i < array.length; ++i)
		      { if (array[i] == elt) { return i } }
		    return -1
		  }

// Number of pixels added to scroller and sizer to hide scrollbar
		  var scrollerGap = 50;

// Returned or thrown by various protocols to signal 'I'm not
		  // handling this'.
		  var Pass = {toString: function(){return "CodeMirror.Pass"}};

// Reused option objects for setSelection & friends
		  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};

// The inverse of countColumn -- find the offset that corresponds to
		  // a particular column.
		  function findColumn(string, goal, tabSize) {
		    for (var pos = 0, col = 0;;) {
		      var nextTab = string.indexOf("\t", pos);
		      if (nextTab == -1) { nextTab = string.length; }
		      var skipped = nextTab - pos;
		      if (nextTab == string.length || col + skipped >= goal)
		        { return pos + Math.min(skipped, goal - col) }
		      col += nextTab - pos;
		      col += tabSize - (col % tabSize);
		      pos = nextTab + 1;
		      if (col >= goal) { return pos }
		    }
		  }

var spaceStrs = [""];
		  function spaceStr(n) {
		    while (spaceStrs.length <= n)
		      { spaceStrs.push(lst(spaceStrs) + " "); }
		    return spaceStrs[n]
		  }

function lst(arr) { return arr[arr.length-1] }

function map(array, f) {
		    var out = [];
		    for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); }
		    return out
		  }

function insertSorted(array, value, score) {
		    var pos = 0, priority = score(value);
		    while (pos < array.length && score(array[pos]) <= priority) { pos++; }
		    array.splice(pos, 0, value);
		  }

function nothing() {}

var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
		  function isWordCharBasic(ch) {
		    return /\w/.test(ch) || ch > "\x80" &&
		      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
		  }
		  function isWordChar(ch, helper) {
		    if (!helper) { return isWordCharBasic(ch) }
		    if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
		    return helper.test(ch)
		  }

function isEmpty(obj) {
		    for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
		    return true
		  }

// Extending unicode characters. A series of a non-extending char +
		  // any number of extending chars is treated as a single unit as far
		  // as editing and measuring is concerned. This is not fully correct,
		  // since some scripts/fonts/browsers also treat other configurations
		  // of code points as a group.
		  var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
		  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }

// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
		  function skipExtendingChars(str, pos, dir) {
		    while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; }
		    return pos
		  }

// Returns the value from the range [`from`; `to`] that satisfies
		  // `pred` and is closest to `from`. Assumes that at least `to`
		  // satisfies `pred`. Supports `from` being greater than `to`.
		  function findFirst(pred, from, to) {
		    // At any point we are certain `to` satisfies `pred`, don't know
		    // whether `from` does.
		    var dir = from > to ? -1 : 1;
		    for (;;) {
		      if (from == to) { return from }
		      var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF);
		      if (mid == from) { return pred(mid) ? from : to }
		      if (pred(mid)) { to = mid; }
		      else { from = mid + dir; }
		    }
		  }

// BIDI HELPERS

// Bidirectional ordering algorithm
		  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
		  // that this (partially) implements.

// One-char codes used for character types:
		  // L (L):   Left-to-Right
		  // R (R):   Right-to-Left
		  // r (AL):  Right-to-Left Arabic
		  // 1 (EN):  European Number
		  // + (ES):  European Number Separator
		  // % (ET):  European Number Terminator
		  // n (AN):  Arabic Number
		  // , (CS):  Common Number Separator
		  // m (NSM): Non-Spacing Mark
		  // b (BN):  Boundary Neutral
		  // s (B):   Paragraph Separator
		  // t (S):   Segment Separator
		  // w (WS):  Whitespace
		  // N (ON):  Other Neutrals

// Returns null if characters are ordered as they appear
		  // (left-to-right), or an array of sections ({from, to, level}
		  // objects) in the order in which they occur visually.
		  var bidiOrdering = (function() {
		    // Character types for codepoints 0 to 0xff
		    var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
		    // Character types for codepoints 0x600 to 0x6f9
		    var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111";
		    function charType(code) {
		      if (code <= 0xf7) { return lowTypes.charAt(code) }
		      else if (0x590 <= code && code <= 0x5f4) { return "R" }
		      else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
		      else if (0x6ee <= code && code <= 0x8ac) { return "r" }
		      else if (0x2000 <= code && code <= 0x200b) { return "w" }
		      else if (code == 0x200c) { return "b" }
		      else { return "L" }
		    }

var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
		    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;

function BidiSpan(level, from, to) {
		      this.level = level;
		      this.from = from; this.to = to;
		    }

return function(str, direction) {
		      var outerType = direction == "ltr" ? "L" : "R";

if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
		      var len = str.length, types = [];
		      for (var i = 0; i < len; ++i)
		        { types.push(charType(str.charCodeAt(i))); }

// W1. Examine each non-spacing mark (NSM) in the level run, and
		      // change the type of the NSM to the type of the previous
		      // character. If the NSM is at the start of the level run, it will
		      // get the type of sor.
		      for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
		        var type = types[i$1];
		        if (type == "m") { types[i$1] = prev; }
		        else { prev = type; }
		      }

// W2. Search backwards from each instance of a European number
		      // until the first strong type (R, L, AL, or sor) is found. If an
		      // AL is found, change the type of the European number to Arabic
		      // number.
		      // W3. Change all ALs to R.
		      for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
		        var type$1 = types[i$2];
		        if (type$1 == "1" && cur == "r") { types[i$2] = "n"; }
		        else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } }
		      }

// W4. A single European separator between two European numbers
		      // changes to a European number. A single common separator between
		      // two numbers of the same type changes to that type.
		      for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
		        var type$2 = types[i$3];
		        if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; }
		        else if (type$2 == "," && prev$1 == types[i$3+1] &&
		                 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; }
		        prev$1 = type$2;
		      }

// W5. A sequence of European terminators adjacent to European
		      // numbers changes to all European numbers.
		      // W6. Otherwise, separators and terminators change to Other
		      // Neutral.
		      for (var i$4 = 0; i$4 < len; ++i$4) {
		        var type$3 = types[i$4];
		        if (type$3 == ",") { types[i$4] = "N"; }
		        else if (type$3 == "%") {
		          var end = (void 0);
		          for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
		          var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
		          for (var j = i$4; j < end; ++j) { types[j] = replace; }
		          i$4 = end - 1;
		        }
		      }

// W7. Search backwards from each instance of a European number
		      // until the first strong type (R, L, or sor) is found. If an L is
		      // found, then change the type of the European number to L.
		      for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
		        var type$4 = types[i$5];
		        if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; }
		        else if (isStrong.test(type$4)) { cur$1 = type$4; }
		      }

// N1. A sequence of neutrals takes the direction of the
		      // surrounding strong text if the text on both sides has the same
		      // direction. European and Arabic numbers act as if they were R in
		      // terms of their influence on neutrals. Start-of-level-run (sor)
		      // and end-of-level-run (eor) are used at level run boundaries.
		      // N2. Any remaining neutrals take the embedding direction.
		      for (var i$6 = 0; i$6 < len; ++i$6) {
		        if (isNeutral.test(types[i$6])) {
		          var end$1 = (void 0);
		          for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
		          var before = (i$6 ? types[i$6-1] : outerType) == "L";
		          var after = (end$1 < len ? types[end$1] : outerType) == "L";
		          var replace$1 = before == after ? (before ? "L" : "R") : outerType;
		          for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; }
		          i$6 = end$1 - 1;
		        }
		      }

// Here we depart from the documented algorithm, in order to avoid
		      // building up an actual levels array. Since there are only three
		      // levels (0, 1, 2) in an implementation that doesn't take
		      // explicit embedding into account, we can build up the order on
		      // the fly, without following the level-based algorithm.
		      var order = [], m;
		      for (var i$7 = 0; i$7 < len;) {
		        if (countsAsLeft.test(types[i$7])) {
		          var start = i$7;
		          for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
		          order.push(new BidiSpan(0, start, i$7));
		        } else {
		          var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0;
		          for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
		          for (var j$2 = pos; j$2 < i$7;) {
		            if (countsAsNum.test(types[j$2])) {
		              if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; }
		              var nstart = j$2;
		              for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
		              order.splice(at, 0, new BidiSpan(2, nstart, j$2));
		              at += isRTL;
		              pos = j$2;
		            } else { ++j$2; }
		          }
		          if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); }
		        }
		      }
		      if (direction == "ltr") {
		        if (order[0].level == 1 && (m = str.match(/^\s+/))) {
		          order[0].from = m[0].length;
		          order.unshift(new BidiSpan(0, 0, m[0].length));
		        }
		        if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
		          lst(order).to -= m[0].length;
		          order.push(new BidiSpan(0, len - m[0].length, len));
		        }
		      }

return direction == "rtl" ? order.reverse() : order
		    }
		  })();

// Get the bidi ordering for the given line (and cache it). Returns
		  // false for lines that are fully left-to-right, and an array of
		  // BidiSpan objects otherwise.
		  function getOrder(line, direction) {
		    var order = line.order;
		    if (order == null) { order = line.order = bidiOrdering(line.text, direction); }
		    return order
		  }

// EVENT HANDLING

// Lightweight event framework. on/off also work on DOM nodes,
		  // registering native DOM handlers.

var noHandlers = [];

function getHandlers(emitter, type) {
		    return emitter._handlers && emitter._handlers[type] || noHandlers
		  }

// The DOM events that CodeMirror handles can be overridden by
		  // registering a (non-DOM) handler on the editor for the event name,
		  // and preventDefault-ing the event in that handler.
		  function signalDOMEvent(cm, e, override) {
		    if (typeof e == "string")
		      { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; }
		    signal(cm, override || e.type, cm, e);
		    return e_defaultPrevented(e) || e.codemirrorIgnore
		  }

function hasHandler(emitter, type) {
		    return getHandlers(emitter, type).length > 0
		  }

// Add on and off methods to a constructor's prototype, to make
		  // registering events on such objects more convenient.
		  function eventMixin(ctor) {
		    ctor.prototype.on = function(type, f) {on(this, type, f);};
		    ctor.prototype.off = function(type, f) {off(this, type, f);};
		  }

// Due to the fact that we still support jurassic IE versions, some
		  // compatibility wrappers are needed.

// Detect drag-and-drop
		  var dragAndDrop = function() {
		    // There is *some* kind of drag-and-drop support in IE6-8, but I
		    // couldn't get it to work yet.
		    if (ie && ie_version < 9) { return false }
		    var div = elt('div');
		    return "draggable" in div || "dragDrop" in div
		  }();

var zwspSupported;
		  function zeroWidthElement(measure) {
		    if (zwspSupported == null) {
		      var test = elt("span", "\u200b");
		      removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
		      if (measure.firstChild.offsetHeight != 0)
		        { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); }
		    }
		    var node = zwspSupported ? elt("span", "\u200b") :
		      elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
		    node.setAttribute("cm-text", "");
		    return node
		  }

// Feature-detect IE's crummy client rect reporting for bidi text
		  var badBidiRects;
		  function hasBadBidiRects(measure) {
		    if (badBidiRects != null) { return badBidiRects }
		    var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
		    var r0 = range(txt, 0, 1).getBoundingClientRect();
		    var r1 = range(txt, 1, 2).getBoundingClientRect();
		    removeChildren(measure);
		    if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
		    return badBidiRects = (r1.right - r0.right < 3)
		  }

// See if "".split is the broken IE version, if so, provide an
		  // alternative way to split lines.
		  var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
		    var pos = 0, result = [], l = string.length;
		    while (pos <= l) {
		      var nl = string.indexOf("\n", pos);
		      if (nl == -1) { nl = string.length; }
		      var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
		      var rt = line.indexOf("\r");
		      if (rt != -1) {
		        result.push(line.slice(0, rt));
		        pos += rt + 1;
		      } else {
		        result.push(line);
		        pos = nl + 1;
		      }
		    }
		    return result
		  } : function (string) { return string.split(/\r\n?|\n/); };

var hasCopyEvent = (function () {
		    var e = elt("div");
		    if ("oncopy" in e) { return true }
		    e.setAttribute("oncopy", "return;");
		    return typeof e.oncopy == "function"
		  })();

var badZoomedRects = null;
		  function hasBadZoomedRects(measure) {
		    if (badZoomedRects != null) { return badZoomedRects }
		    var node = removeChildrenAndAdd(measure, elt("span", "x"));
		    var normal = node.getBoundingClientRect();
		    var fromRange = range(node, 0, 1).getBoundingClientRect();
		    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
		  }

// Known modes, by name and by MIME
		  var modes = {}, mimeModes = {};

// Extra arguments are stored as the mode's dependencies, which is
		  // used by (legacy) mechanisms like loadmode.js to automatically
		  // load a mode. (Preferred mechanism is the require/define calls.)
		  function defineMode(name, mode) {
		    if (arguments.length > 2)
		      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
		    modes[name] = mode;
		  }

function defineMIME(mime, spec) {
		    mimeModes[mime] = spec;
		  }

// Given a MIME type, a {name, ...options} config object, or a name
		  // string, return a mode config object.
		  function resolveMode(spec) {
		    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
		      spec = mimeModes[spec];
		    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
		      var found = mimeModes[spec.name];
		      if (typeof found == "string") { found = {name: found}; }
		      spec = createObj(found, spec);
		      spec.name = found.name;
		    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
		      return resolveMode("application/xml")
		    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
		      return resolveMode("application/json")
		    }
		    if (typeof spec == "string") { return {name: spec} }
		    else { return spec || {name: "null"} }
		  }

// Given a mode spec (anything that resolveMode accepts), find and
		  // initialize an actual mode object.
		  function getMode(options, spec) {
		    spec = resolveMode(spec);
		    var mfactory = modes[spec.name];
		    if (!mfactory) { return getMode(options, "text/plain") }
		    var modeObj = mfactory(options, spec);
		    if (modeExtensions.hasOwnProperty(spec.name)) {
		      var exts = modeExtensions[spec.name];
		      for (var prop in exts) {
		        if (!exts.hasOwnProperty(prop)) { continue }
		        if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
		        modeObj[prop] = exts[prop];
		      }
		    }
		    modeObj.name = spec.name;
		    if (spec.helperType) { modeObj.helperType = spec.helperType; }
		    if (spec.modeProps) { for (var prop$1 in spec.modeProps)
		      { modeObj[prop$1] = spec.modeProps[prop$1]; } }

return modeObj
		  }

// This can be used to attach properties to mode objects from
		  // outside the actual mode definition.
		  var modeExtensions = {};
		  function extendMode(mode, properties) {
		    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
		    copyObj(properties, exts);
		  }

// Given a mode and a state (for that mode), find the inner mode and
		  // state at the position that the state refers to.
		  function innerMode(mode, state) {
		    var info;
		    while (mode.innerMode) {
		      info = mode.innerMode(state);
		      if (!info || info.mode == mode) { break }
		      state = info.state;
		      mode = info.mode;
		    }
		    return info || {mode: mode, state: state}
		  }

function startState(mode, a1, a2) {
		    return mode.startState ? mode.startState(a1, a2) : true
		  }

// STRING STREAM

// Fed to the mode parsers, provides helper functions to make
		  // parsers more succinct.

var StringStream = function(string, tabSize, lineOracle) {
		    this.pos = this.start = 0;
		    this.string = string;
		    this.tabSize = tabSize || 8;
		    this.lastColumnPos = this.lastColumnValue = 0;
		    this.lineStart = 0;
		    this.lineOracle = lineOracle;
		  };

StringStream.prototype.eol = function () {return this.pos >= this.string.length};
		  StringStream.prototype.sol = function () {return this.pos == this.lineStart};
		  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
		  StringStream.prototype.next = function () {
		    if (this.pos < this.string.length)
		      { return this.string.charAt(this.pos++) }
		  };
		  StringStream.prototype.eat = function (match) {
		    var ch = this.string.charAt(this.pos);
		    var ok;
		    if (typeof match == "string") { ok = ch == match; }
		    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
		    if (ok) {++this.pos; return ch}
		  };
		  StringStream.prototype.eatWhile = function (match) {
		    var start = this.pos;
		    while (this.eat(match)){}
		    return this.pos > start
		  };
		  StringStream.prototype.eatSpace = function () {
		    var start = this.pos;
		    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
		    return this.pos > start
		  };
		  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
		  StringStream.prototype.skipTo = function (ch) {
		    var found = this.string.indexOf(ch, this.pos);
		    if (found > -1) {this.pos = found; return true}
		  };
		  StringStream.prototype.backUp = function (n) {this.pos -= n;};
		  StringStream.prototype.column = function () {
		    if (this.lastColumnPos < this.start) {
		      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
		      this.lastColumnPos = this.start;
		    }
		    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
		  };
		  StringStream.prototype.indentation = function () {
		    return countColumn(this.string, null, this.tabSize) -
		      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
		  };
		  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
		    if (typeof pattern == "string") {
		      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
		      var substr = this.string.substr(this.pos, pattern.length);
		      if (cased(substr) == cased(pattern)) {
		        if (consume !== false) { this.pos += pattern.length; }
		        return true
		      }
		    } else {
		      var match = this.string.slice(this.pos).match(pattern);
		      if (match && match.index > 0) { return null }
		      if (match && consume !== false) { this.pos += match[0].length; }
		      return match
		    }
		  };
		  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
		  StringStream.prototype.hideFirstChars = function (n, inner) {
		    this.lineStart += n;
		    try { return inner() }
		    finally { this.lineStart -= n; }
		  };
		  StringStream.prototype.lookAhead = function (n) {
		    var oracle = this.lineOracle;
		    return oracle && oracle.lookAhead(n)
		  };
		  StringStream.prototype.baseToken = function () {
		    var oracle = this.lineOracle;
		    return oracle && oracle.baseToken(this.pos)
		  };

// Find the line object corresponding to the given line number.
		  function getLine(doc, n) {
		    n -= doc.first;
		    if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
		    var chunk = doc;
		    while (!chunk.lines) {
		      for (var i = 0;; ++i) {
		        var child = chunk.children[i], sz = child.chunkSize();
		        if (n < sz) { chunk = child; break }
		        n -= sz;
		      }
		    }
		    return chunk.lines[n]
		  }

// Get the part of a document between two positions, as an array of
		  // strings.
		  function getBetween(doc, start, end) {
		    var out = [], n = start.line;
		    doc.iter(start.line, end.line + 1, function (line) {
		      var text = line.text;
		      if (n == end.line) { text = text.slice(0, end.ch); }
		      if (n == start.line) { text = text.slice(start.ch); }
		      out.push(text);
		      ++n;
		    });
		    return out
		  }
		  // Get the lines between from and to, as array of strings.
		  function getLines(doc, from, to) {
		    var out = [];
		    doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value
		    return out
		  }

// Update the height of a line, propagating the height change
		  // upwards to parent nodes.
		  function updateLineHeight(line, height) {
		    var diff = height - line.height;
		    if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } }
		  }

// Given a line object, find its line number by walking up through
		  // its parent links.
		  function lineNo(line) {
		    if (line.parent == null) { return null }
		    var cur = line.parent, no = indexOf(cur.lines, line);
		    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
		      for (var i = 0;; ++i) {
		        if (chunk.children[i] == cur) { break }
		        no += chunk.children[i].chunkSize();
		      }
		    }
		    return no + cur.first
		  }

// Find the line at the given vertical position, using the height
		  // information in the document tree.
		  function lineAtHeight(chunk, h) {
		    var n = chunk.first;
		    outer: do {
		      for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
		        var child = chunk.children[i$1], ch = child.height;
		        if (h < ch) { chunk = child; continue outer }
		        h -= ch;
		        n += child.chunkSize();
		      }
		      return n
		    } while (!chunk.lines)
		    var i = 0;
		    for (; i < chunk.lines.length; ++i) {
		      var line = chunk.lines[i], lh = line.height;
		      if (h < lh) { break }
		      h -= lh;
		    }
		    return n + i
		  }

function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}

function lineNumberFor(options, i) {
		    return String(options.lineNumberFormatter(i + options.firstLineNumber))
		  }

// A Pos instance represents a position within the text.
		  function Pos(line, ch, sticky) {
		    if ( sticky === void 0 ) sticky = null;

if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
		    this.line = line;
		    this.ch = ch;
		    this.sticky = sticky;
		  }

// Compare two positions, return 0 if they are the same, a negative
		  // number when a is less, and a positive number otherwise.
		  function cmp(a, b) { return a.line - b.line || a.ch - b.ch }

function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }

function copyPos(x) {return Pos(x.line, x.ch)}
		  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
		  function minPos(a, b) { return cmp(a, b) < 0 ? a : b }

// Most of the external API clips given positions to make sure they
		  // actually exist within the document.
		  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
		  function clipPos(doc, pos) {
		    if (pos.line < doc.first) { return Pos(doc.first, 0) }
		    var last = doc.first + doc.size - 1;
		    if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
		    return clipToLen(pos, getLine(doc, pos.line).text.length)
		  }
		  function clipToLen(pos, linelen) {
		    var ch = pos.ch;
		    if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
		    else if (ch < 0) { return Pos(pos.line, 0) }
		    else { return pos }
		  }
		  function clipPosArray(doc, array) {
		    var out = [];
		    for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); }
		    return out
		  }

var SavedContext = function(state, lookAhead) {
		    this.state = state;
		    this.lookAhead = lookAhead;
		  };

var Context = function(doc, state, line, lookAhead) {
		    this.state = state;
		    this.doc = doc;
		    this.line = line;
		    this.maxLookAhead = lookAhead || 0;
		    this.baseTokens = null;
		    this.baseTokenPos = 1;
		  };

Context.prototype.lookAhead = function (n) {
		    var line = this.doc.getLine(this.line + n);
		    if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; }
		    return line
		  };

Context.prototype.baseToken = function (n) {
		    if (!this.baseTokens) { return null }
		    while (this.baseTokens[this.baseTokenPos] <= n)
		      { this.baseTokenPos += 2; }
		    var type = this.baseTokens[this.baseTokenPos + 1];
		    return {type: type && type.replace(/( |^)overlay .*/, ""),
		            size: this.baseTokens[this.baseTokenPos] - n}
		  };

Context.prototype.nextLine = function () {
		    this.line++;
		    if (this.maxLookAhead > 0) { this.maxLookAhead--; }
		  };

Context.fromSaved = function (doc, saved, line) {
		    if (saved instanceof SavedContext)
		      { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }
		    else
		      { return new Context(doc, copyState(doc.mode, saved), line) }
		  };

Context.prototype.save = function (copy) {
		    var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state;
		    return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state
		  };

// Compute a style array (an array starting with a mode generation
		  // -- for invalidation -- followed by pairs of end positions and
		  // style strings), which is used to highlight the tokens on the
		  // line.
		  function highlightLine(cm, line, context, forceToEnd) {
		    // A styles array always starts with a number identifying the
		    // mode/overlays that it is based on (for easy invalidation).
		    var st = [cm.state.modeGen], lineClasses = {};
		    // Compute the base array of styles
		    runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },
		            lineClasses, forceToEnd);
		    var state = context.state;

// Run overlays, adjust style array.
		    var loop = function ( o ) {
		      context.baseTokens = st;
		      var overlay = cm.state.overlays[o], i = 1, at = 0;
		      context.state = true;
		      runMode(cm, line.text, overlay.mode, context, function (end, style) {
		        var start = i;
		        // Ensure there's a token end at the current position, and that i points at it
		        while (at < end) {
		          var i_end = st[i];
		          if (i_end > end)
		            { st.splice(i, 1, end, st[i+1], i_end); }
		          i += 2;
		          at = Math.min(end, i_end);
		        }
		        if (!style) { return }
		        if (overlay.opaque) {
		          st.splice(start, i - start, end, "overlay " + style);
		          i = start + 2;
		        } else {
		          for (; start < i; start += 2) {
		            var cur = st[start+1];
		            st[start+1] = (cur ? cur + " " : "") + "overlay " + style;
		          }
		        }
		      }, lineClasses);
		      context.state = state;
		      context.baseTokens = null;
		      context.baseTokenPos = 1;
		    };

for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );

return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
		  }

function getContextBefore(cm, n, precise) {
		    var doc = cm.doc, display = cm.display;
		    if (!doc.mode.startState) { return new Context(doc, true, n) }
		    var start = findStartLine(cm, n, precise);
		    var saved = start > doc.first && getLine(doc, start - 1).stateAfter;
		    var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start);

doc.iter(start, n, function (line) {
		      processLine(cm, line.text, context);
		      var pos = context.line;
		      line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null;
		      context.nextLine();
		    });
		    if (precise) { doc.modeFrontier = context.line; }
		    return context
		  }

// Lightweight form of highlight -- proceed over this line and
		  // update state, but don't save a style array. Used for lines that
		  // aren't currently visible.
		  function processLine(cm, text, context, startAt) {
		    var mode = cm.doc.mode;
		    var stream = new StringStream(text, cm.options.tabSize, context);
		    stream.start = stream.pos = startAt || 0;
		    if (text == "") { callBlankLine(mode, context.state); }
		    while (!stream.eol()) {
		      readToken(mode, stream, context.state);
		      stream.start = stream.pos;
		    }
		  }

function callBlankLine(mode, state) {
		    if (mode.blankLine) { return mode.blankLine(state) }
		    if (!mode.innerMode) { return }
		    var inner = innerMode(mode, state);
		    if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
		  }

var Token = function(stream, type, state) {
		    this.start = stream.start; this.end = stream.pos;
		    this.string = stream.current();
		    this.type = type || null;
		    this.state = state;
		  };

// Utility for getTokenAt and getLineTokens
		  function takeToken(cm, pos, precise, asArray) {
		    var doc = cm.doc, mode = doc.mode, style;
		    pos = clipPos(doc, pos);
		    var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise);
		    var stream = new StringStream(line.text, cm.options.tabSize, context), tokens;
		    if (asArray) { tokens = []; }
		    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
		      stream.start = stream.pos;
		      style = readToken(mode, stream, context.state);
		      if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); }
		    }
		    return asArray ? tokens : new Token(stream, style, context.state)
		  }

// Run the given mode's parser over a line, calling f for each token.
		  function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {
		    var flattenSpans = mode.flattenSpans;
		    if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; }
		    var curStart = 0, curStyle = null;
		    var stream = new StringStream(text, cm.options.tabSize, context), style;
		    var inner = cm.options.addModeClass && [null];
		    if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); }
		    while (!stream.eol()) {
		      if (stream.pos > cm.options.maxHighlightLength) {
		        flattenSpans = false;
		        if (forceToEnd) { processLine(cm, text, context, stream.pos); }
		        stream.pos = text.length;
		        style = null;
		      } else {
		        style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses);
		      }
		      if (inner) {
		        var mName = inner[0].name;
		        if (mName) { style = "m-" + (style ? mName + " " + style : mName); }
		      }
		      if (!flattenSpans || curStyle != style) {
		        while (curStart < stream.start) {
		          curStart = Math.min(stream.start, curStart + 5000);
		          f(curStart, curStyle);
		        }
		        curStyle = style;
		      }
		      stream.start = stream.pos;
		    }
		    while (curStart < stream.pos) {
		      // Webkit seems to refuse to render text nodes longer than 57444
		      // characters, and returns inaccurate measurements in nodes
		      // starting around 5000 chars.
		      var pos = Math.min(stream.pos, curStart + 5000);
		      f(pos, curStyle);
		      curStart = pos;
		    }
		  }

// Finds the line to start with when starting a parse. Tries to
		  // find a line with a stateAfter, so that it can start with a
		  // valid state. If that fails, it returns the line with the
		  // smallest indentation, which tends to need the least context to
		  // parse correctly.
		  function findStartLine(cm, n, precise) {
		    var minindent, minline, doc = cm.doc;
		    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
		    for (var search = n; search > lim; --search) {
		      if (search <= doc.first) { return doc.first }
		      var line = getLine(doc, search - 1), after = line.stateAfter;
		      if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))
		        { return search }
		      var indented = countColumn(line.text, null, cm.options.tabSize);
		      if (minline == null || minindent > indented) {
		        minline = search - 1;
		        minindent = indented;
		      }
		    }
		    return minline
		  }

// Optimize some code when these features are not used.
		  var sawReadOnlySpans = false, sawCollapsedSpans = false;

function seeReadOnlySpans() {
		    sawReadOnlySpans = true;
		  }

function seeCollapsedSpans() {
		    sawCollapsedSpans = true;
		  }

// TEXTMARKER SPANS

function MarkedSpan(marker, from, to) {
		    this.marker = marker;
		    this.from = from; this.to = to;
		  }

// Search an array of spans for a span matching the given marker.
		  function getMarkedSpanFor(spans, marker) {
		    if (spans) { for (var i = 0; i < spans.length; ++i) {
		      var span = spans[i];
		      if (span.marker == marker) { return span }
		    } }
		  }

// Remove a span from an array, returning undefined if no spans are
		  // left (we don't store arrays for lines without spans).
		  function removeMarkedSpan(spans, span) {
		    var r;
		    for (var i = 0; i < spans.length; ++i)
		      { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } }
		    return r
		  }

// Add a span to a line.
		  function addMarkedSpan(line, span, op) {
		    var inThisOp = op && window.WeakSet && (op.markedSpans || (op.markedSpans = new WeakSet));
		    if (inThisOp && line.markedSpans && inThisOp.has(line.markedSpans)) {
		      line.markedSpans.push(span);
		    } else {
		      line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
		      if (inThisOp) { inThisOp.add(line.markedSpans); }
		    }
		    span.marker.attachLine(line);
		  }

// Used for the algorithm that adjusts markers for a change in the
		  // document. These functions cut an array of spans at a given
		  // character position, returning an array of remaining chunks (or
		  // undefined if nothing remains).
		  function markedSpansBefore(old, startCh, isInsert) {
		    var nw;
		    if (old) { for (var i = 0; i < old.length; ++i) {
		      var span = old[i], marker = span.marker;
		      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
		      if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
		        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
		        ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
		      }
		    } }
		    return nw
		  }
		  function markedSpansAfter(old, endCh, isInsert) {
		    var nw;
		    if (old) { for (var i = 0; i < old.length; ++i) {
		      var span = old[i], marker = span.marker;
		      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
		      if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
		        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
		        ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
		                                              span.to == null ? null : span.to - endCh));
		      }
		    } }
		    return nw
		  }

// Given a change object, compute the new set of marker spans that
		  // cover the line in which the change took place. Removes spans
		  // entirely within the change, reconnects spans belonging to the
		  // same marker that appear on both sides of the change, and cuts off
		  // spans partially within the change. Returns an array of span
		  // arrays with one element for each line in (after) the change.
		  function stretchSpansOverChange(doc, change) {
		    if (change.full) { return null }
		    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
		    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
		    if (!oldFirst && !oldLast) { return null }

var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
		    // Get the spans that 'stick out' on both sides
		    var first = markedSpansBefore(oldFirst, startCh, isInsert);
		    var last = markedSpansAfter(oldLast, endCh, isInsert);

// Next, merge those two ends
		    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
		    if (first) {
		      // Fix up .to properties of first
		      for (var i = 0; i < first.length; ++i) {
		        var span = first[i];
		        if (span.to == null) {
		          var found = getMarkedSpanFor(last, span.marker);
		          if (!found) { span.to = startCh; }
		          else if (sameLine) { span.to = found.to == null ? null : found.to + offset; }
		        }
		      }
		    }
		    if (last) {
		      // Fix up .from in last (or move them into first in case of sameLine)
		      for (var i$1 = 0; i$1 < last.length; ++i$1) {
		        var span$1 = last[i$1];
		        if (span$1.to != null) { span$1.to += offset; }
		        if (span$1.from == null) {
		          var found$1 = getMarkedSpanFor(first, span$1.marker);
		          if (!found$1) {
		            span$1.from = offset;
		            if (sameLine) { (first || (first = [])).push(span$1); }
		          }
		        } else {
		          span$1.from += offset;
		          if (sameLine) { (first || (first = [])).push(span$1); }
		        }
		      }
		    }
		    // Make sure we didn't create any zero-length spans
		    if (first) { first = clearEmptySpans(first); }
		    if (last && last != first) { last = clearEmptySpans(last); }

// Remove spans that are empty and don't have a clearWhenEmpty
		  // option of false.
		  function clearEmptySpans(spans) {
		    for (var i = 0; i < spans.length; ++i) {
		      var span = spans[i];
		      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
		        { spans.splice(i--, 1); }
		    }
		    if (!spans.length) { return null }
		    return spans
		  }

// Used to 'clip' out readOnly ranges when making a change.
		  function removeReadOnlyRanges(doc, from, to) {
		    var markers = null;
		    doc.iter(from.line, to.line + 1, function (line) {
		      if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
		        var mark = line.markedSpans[i].marker;
		        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
		          { (markers || (markers = [])).push(mark); }
		      } }
		    });
		    if (!markers) { return null }
		    var parts = [{from: from, to: to}];
		    for (var i = 0; i < markers.length; ++i) {
		      var mk = markers[i], m = mk.find(0);
		      for (var j = 0; j < parts.length; ++j) {
		        var p = parts[j];
		        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
		        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
		        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
		          { newParts.push({from: p.from, to: m.from}); }
		        if (dto > 0 || !mk.inclusiveRight && !dto)
		          { newParts.push({from: m.to, to: p.to}); }
		        parts.splice.apply(parts, newParts);
		        j += newParts.length - 3;
		      }
		    }
		    return parts
		  }

// Connect or disconnect spans from a line.
		  function detachMarkedSpans(line) {
		    var spans = line.markedSpans;
		    if (!spans) { return }
		    for (var i = 0; i < spans.length; ++i)
		      { spans[i].marker.detachLine(line); }
		    line.markedSpans = null;
		  }
		  function attachMarkedSpans(line, spans) {
		    if (!spans) { return }
		    for (var i = 0; i < spans.length; ++i)
		      { spans[i].marker.attachLine(line); }
		    line.markedSpans = spans;
		  }

// Helpers used when computing which overlapping collapsed span
		  // counts as the larger one.
		  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
		  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }

// Returns a number indicating which of two overlapping collapsed
		  // spans is larger (and thus includes the other). Falls back to
		  // comparing ids when the spans cover exactly the same range.
		  function compareCollapsedMarkers(a, b) {
		    var lenDiff = a.lines.length - b.lines.length;
		    if (lenDiff != 0) { return lenDiff }
		    var aPos = a.find(), bPos = b.find();
		    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
		    if (fromCmp) { return -fromCmp }
		    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
		    if (toCmp) { return toCmp }
		    return b.id - a.id
		  }

// Find out whether a line ends or starts in a collapsed span. If
		  // so, return the marker for that span.
		  function collapsedSpanAtSide(line, start) {
		    var sps = sawCollapsedSpans && line.markedSpans, found;
		    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
		      sp = sps[i];
		      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
		          (!found || compareCollapsedMarkers(found, sp.marker) < 0))
		        { found = sp.marker; }
		    } }
		    return found
		  }
		  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
		  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }

// Test whether there exists a collapsed span that partially
		  // overlaps (covers the start or end, but not both) of a new span.
		  // Such overlap is not allowed.
		  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
		    var line = getLine(doc, lineNo);
		    var sps = sawCollapsedSpans && line.markedSpans;
		    if (sps) { for (var i = 0; i < sps.length; ++i) {
		      var sp = sps[i];
		      if (!sp.marker.collapsed) { continue }
		      var found = sp.marker.find(0);
		      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
		      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
		      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
		      if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
		          fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
		        { return true }
		    } }
		  }

// A visual line is a line as drawn on the screen. Folding, for
		  // example, can cause multiple logical lines to appear on the same
		  // visual line. This finds the start of the visual line that the
		  // given line is part of (usually that is the line itself).
		  function visualLine(line) {
		    var merged;
		    while (merged = collapsedSpanAtStart(line))
		      { line = merged.find(-1, true).line; }
		    return line
		  }

function visualLineEnd(line) {
		    var merged;
		    while (merged = collapsedSpanAtEnd(line))
		      { line = merged.find(1, true).line; }
		    return line
		  }

// Returns an array of logical lines that continue the visual line
		  // started by the argument, or undefined if there are no such lines.
		  function visualLineContinued(line) {
		    var merged, lines;
		    while (merged = collapsedSpanAtEnd(line)) {
		      line = merged.find(1, true).line
		      ;(lines || (lines = [])).push(line);
		    }
		    return lines
		  }

// Get the line number of the start of the visual line that the
		  // given line number is part of.
		  function visualLineNo(doc, lineN) {
		    var line = getLine(doc, lineN), vis = visualLine(line);
		    if (line == vis) { return lineN }
		    return lineNo(vis)
		  }

// Get the line number of the start of the next visual line after
		  // the given line.
		  function visualLineEndNo(doc, lineN) {
		    if (lineN > doc.lastLine()) { return lineN }
		    var line = getLine(doc, lineN), merged;
		    if (!lineIsHidden(doc, line)) { return lineN }
		    while (merged = collapsedSpanAtEnd(line))
		      { line = merged.find(1, true).line; }
		    return lineNo(line) + 1
		  }

// Compute whether a line is hidden. Lines count as hidden when they
		  // are part of a visual line that starts with another line, or when
		  // they are entirely covered by collapsed, non-widget span.
		  function lineIsHidden(doc, line) {
		    var sps = sawCollapsedSpans && line.markedSpans;
		    if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
		      sp = sps[i];
		      if (!sp.marker.collapsed) { continue }
		      if (sp.from == null) { return true }
		      if (sp.marker.widgetNode) { continue }
		      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
		        { return true }
		    } }
		  }
		  function lineIsHiddenInner(doc, line, span) {
		    if (span.to == null) {
		      var end = span.marker.find(1, true);
		      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
		    }
		    if (span.marker.inclusiveRight && span.to == line.text.length)
		      { return true }
		    for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
		      sp = line.markedSpans[i];
		      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
		          (sp.to == null || sp.to != span.from) &&
		          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
		          lineIsHiddenInner(doc, line, sp)) { return true }
		    }
		  }

// Find the height above the given line.
		  function heightAtLine(lineObj) {
		    lineObj = visualLine(lineObj);

// Compute the character length of a line, taking into account
		  // collapsed ranges (see markText) that might hide parts, and join
		  // other lines onto it.
		  function lineLength(line) {
		    if (line.height == 0) { return 0 }
		    var len = line.text.length, merged, cur = line;
		    while (merged = collapsedSpanAtStart(cur)) {
		      var found = merged.find(0, true);
		      cur = found.from.line;
		      len += found.from.ch - found.to.ch;
		    }
		    cur = line;
		    while (merged = collapsedSpanAtEnd(cur)) {
		      var found$1 = merged.find(0, true);
		      len -= cur.text.length - found$1.from.ch;
		      cur = found$1.to.line;
		      len += cur.text.length - found$1.to.ch;
		    }
		    return len
		  }

// Find the longest line in the document.
		  function findMaxLine(cm) {
		    var d = cm.display, doc = cm.doc;
		    d.maxLine = getLine(doc, doc.first);
		    d.maxLineLength = lineLength(d.maxLine);
		    d.maxLineChanged = true;
		    doc.iter(function (line) {
		      var len = lineLength(line);
		      if (len > d.maxLineLength) {
		        d.maxLineLength = len;
		        d.maxLine = line;
		      }
		    });
		  }

// LINE DATA STRUCTURE

// Line objects. These hold state related to a line, including
		  // highlighting info (the styles array).
		  var Line = function(text, markedSpans, estimateHeight) {
		    this.text = text;
		    attachMarkedSpans(this, markedSpans);
		    this.height = estimateHeight ? estimateHeight(this) : 1;
		  };

Line.prototype.lineNo = function () { return lineNo(this) };
		  eventMixin(Line);

// Change the content (text, markers) of a line. Automatically
		  // invalidates cached information and tries to re-estimate the
		  // line's height.
		  function updateLine(line, text, markedSpans, estimateHeight) {
		    line.text = text;
		    if (line.stateAfter) { line.stateAfter = null; }
		    if (line.styles) { line.styles = null; }
		    if (line.order != null) { line.order = null; }
		    detachMarkedSpans(line);
		    attachMarkedSpans(line, markedSpans);
		    var estHeight = estimateHeight ? estimateHeight(line) : 1;
		    if (estHeight != line.height) { updateLineHeight(line, estHeight); }
		  }

// Detach a line from the document tree and its markers.
		  function cleanUpLine(line) {
		    line.parent = null;
		    detachMarkedSpans(line);
		  }

// Convert a style as returned by a mode (either null, or a string
		  // containing one or more styles) to a CSS style. This is cached,
		  // and also looks for line-wide styles.
		  var styleToClassCache = {}, styleToClassCacheWithMode = {};
		  function interpretTokenStyle(style, options) {
		    if (!style || /^\s*$/.test(style)) { return null }
		    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
		    return cache[style] ||
		      (cache[style] = style.replace(/\S+/g, "cm-$&"))
		  }

// Render the DOM representation of the text of a line. Also builds
		  // up a 'line map', which points at the DOM nodes that represent
		  // specific stretches of text, and is used by the measuring code.
		  // The returned object contains the DOM node, this map, and
		  // information about line-wide styles that were set by the mode.
		  function buildLineContent(cm, lineView) {
		    // The padding-right forces the element to have a 'border', which
		    // is needed on Webkit to be able to get line-level bounding
		    // rectangles for it (in measureChar).
		    var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null);
		    var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
		                   col: 0, pos: 0, cm: cm,
		                   trailingSpace: false,
		                   splitSpaces: cm.getOption("lineWrapping")};
		    lineView.measure = {};

// Iterate over the logical lines that make up this visual line.
		    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
		      var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0);
		      builder.pos = 0;
		      builder.addToken = buildToken;
		      // Optionally wire in some hacks into the token-rendering
		      // algorithm, to deal with browser quirks.
		      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
		        { builder.addToken = buildTokenBadBidi(builder.addToken, order); }
		      builder.map = [];
		      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
		      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
		      if (line.styleClasses) {
		        if (line.styleClasses.bgClass)
		          { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); }
		        if (line.styleClasses.textClass)
		          { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); }
		      }

// Ensure at least a single node is present, for measuring.
		      if (builder.map.length == 0)
		        { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); }

// Store the map and a cache object for the current logical line
		      if (i == 0) {
		        lineView.measure.map = builder.map;
		        lineView.measure.cache = {};
		      } else {
		  (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
		        ;(lineView.measure.caches || (lineView.measure.caches = [])).push({});
		      }
		    }

// See issue #2901
		    if (webkit) {
		      var last = builder.content.lastChild;
		      if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
		        { builder.content.className = "cm-tab-wrap-hack"; }
		    }

signal(cm, "renderLine", cm, lineView.line, builder.pre);
		    if (builder.pre.className)
		      { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); }

return builder
		  }

function defaultSpecialCharPlaceholder(ch) {
		    var token = elt("span", "\u2022", "cm-invalidchar");
		    token.title = "\\u" + ch.charCodeAt(0).toString(16);
		    token.setAttribute("aria-label", token.title);
		    return token
		  }

// Build up the DOM representation for a single token, and add it to
		  // the line map. Takes care to render special characters separately.
		  function buildToken(builder, text, style, startStyle, endStyle, css, attributes) {
		    if (!text) { return }
		    var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text;
		    var special = builder.cm.state.specialChars, mustWrap = false;
		    var content;
		    if (!special.test(text)) {
		      builder.col += text.length;
		      content = document.createTextNode(displayText);
		      builder.map.push(builder.pos, builder.pos + text.length, content);
		      if (ie && ie_version < 9) { mustWrap = true; }
		      builder.pos += text.length;
		    } else {
		      content = document.createDocumentFragment();
		      var pos = 0;
		      while (true) {
		        special.lastIndex = pos;
		        var m = special.exec(text);
		        var skipped = m ? m.index - pos : text.length - pos;
		        if (skipped) {
		          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
		          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); }
		          else { content.appendChild(txt); }
		          builder.map.push(builder.pos, builder.pos + skipped, txt);
		          builder.col += skipped;
		          builder.pos += skipped;
		        }
		        if (!m) { break }
		        pos += skipped + 1;
		        var txt$1 = (void 0);
		        if (m[0] == "\t") {
		          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
		          txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
		          txt$1.setAttribute("role", "presentation");
		          txt$1.setAttribute("cm-text", "\t");
		          builder.col += tabWidth;
		        } else if (m[0] == "\r" || m[0] == "\n") {
		          txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
		          txt$1.setAttribute("cm-text", m[0]);
		          builder.col += 1;
		        } else {
		          txt$1 = builder.cm.options.specialCharPlaceholder(m[0]);
		          txt$1.setAttribute("cm-text", m[0]);
		          if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); }
		          else { content.appendChild(txt$1); }
		          builder.col += 1;
		        }
		        builder.map.push(builder.pos, builder.pos + 1, txt$1);
		        builder.pos++;
		      }
		    }
		    builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32;
		    if (style || startStyle || endStyle || mustWrap || css || attributes) {
		      var fullStyle = style || "";
		      if (startStyle) { fullStyle += startStyle; }
		      if (endStyle) { fullStyle += endStyle; }
		      var token = elt("span", [content], fullStyle, css);
		      if (attributes) {
		        for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class")
		          { token.setAttribute(attr, attributes[attr]); } }
		      }
		      return builder.content.appendChild(token)
		    }
		    builder.content.appendChild(content);
		  }

// Change some spaces to NBSP to prevent the browser from collapsing
		  // trailing spaces at the end of a line when rendering text (issue #1362).
		  function splitSpaces(text, trailingBefore) {
		    if (text.length > 1 && !/  /.test(text)) { return text }
		    var spaceBefore = trailingBefore, result = "";
		    for (var i = 0; i < text.length; i++) {
		      var ch = text.charAt(i);
		      if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
		        { ch = "\u00a0"; }
		      result += ch;
		      spaceBefore = ch == " ";
		    }
		    return result
		  }

// Work around nonsense dimensions being reported for stretches of
		  // right-to-left text.
		  function buildTokenBadBidi(inner, order) {
		    return function (builder, text, style, startStyle, endStyle, css, attributes) {
		      style = style ? style + " cm-force-border" : "cm-force-border";
		      var start = builder.pos, end = start + text.length;
		      for (;;) {
		        // Find the part that overlaps with the start of this text
		        var part = (void 0);
		        for (var i = 0; i < order.length; i++) {
		          part = order[i];
		          if (part.to > start && part.from <= start) { break }
		        }
		        if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) }
		        inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes);
		        startStyle = null;
		        text = text.slice(part.to - start);
		        start = part.to;
		      }
		    }
		  }

// Outputs a number of spans to make up a line, taking highlighting
		  // and marked text into account.
		  function insertLineContent(line, builder, styles) {
		    var spans = line.markedSpans, allText = line.text, at = 0;
		    if (!spans) {
		      for (var i$1 = 1; i$1 < styles.length; i$1+=2)
		        { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); }
		      return
		    }

if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
		          { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } }
		        if (collapsed && (collapsed.from || 0) == pos) {
		          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
		                             collapsed.marker, collapsed.from == null);
		          if (collapsed.to == null) { return }
		          if (collapsed.to == pos) { collapsed = false; }
		        }
		      }
		      if (pos >= len) { break }

// These objects are used to represent the visible (currently drawn)
		  // part of the document. A LineView may correspond to multiple
		  // logical lines, if those are connected by collapsed ranges.
		  function LineView(doc, line, lineN) {
		    // The starting line
		    this.line = line;
		    // Continuing lines, if any
		    this.rest = visualLineContinued(line);
		    // Number of logical lines in this visual line
		    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
		    this.node = this.text = null;
		    this.hidden = lineIsHidden(doc, line);
		  }

// Create a range of LineView objects for the given lines.
		  function buildViewArray(cm, from, to) {
		    var array = [], nextPos;
		    for (var pos = from; pos < to; pos = nextPos) {
		      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
		      nextPos = pos + view.size;
		      array.push(view);
		    }
		    return array
		  }

var operationGroup = null;

function pushOperation(op) {
		    if (operationGroup) {
		      operationGroup.ops.push(op);
		    } else {
		      op.ownsGroup = operationGroup = {
		        ops: [op],
		        delayedCallbacks: []
		      };
		    }
		  }

function finishOperation(op, endCb) {
		    var group = op.ownsGroup;
		    if (!group) { return }

try { fireCallbacksForOps(group); }
		    finally {
		      operationGroup = null;
		      endCb(group);
		    }
		  }

var orphanDelayedCallbacks = null;

// Often, we want to signal events at a point where we are in the
		  // middle of some work, but don't want the handler to start calling
		  // other methods on the editor, which might be in an inconsistent
		  // state or simply not expect any other events to happen.
		  // signalLater looks whether there are any handlers, and schedules
		  // them to be executed when the last operation ends, or, if no
		  // operation is active, when a timeout fires.
		  function signalLater(emitter, type /*, values...*/) {
		    var arr = getHandlers(emitter, type);
		    if (!arr.length) { return }
		    var args = Array.prototype.slice.call(arguments, 2), list;
		    if (operationGroup) {
		      list = operationGroup.delayedCallbacks;
		    } else if (orphanDelayedCallbacks) {
		      list = orphanDelayedCallbacks;
		    } else {
		      list = orphanDelayedCallbacks = [];
		      setTimeout(fireOrphanDelayed, 0);
		    }
		    var loop = function ( i ) {
		      list.push(function () { return arr[i].apply(null, args); });
		    };

for (var i = 0; i < arr.length; ++i)
		      loop( i );
		  }

function fireOrphanDelayed() {
		    var delayed = orphanDelayedCallbacks;
		    orphanDelayedCallbacks = null;
		    for (var i = 0; i < delayed.length; ++i) { delayed[i](); }
		  }

// When an aspect of a line changes, a string is added to
		  // lineView.changes. This updates the relevant part of the line's
		  // DOM structure.
		  function updateLineForChanges(cm, lineView, lineN, dims) {
		    for (var j = 0; j < lineView.changes.length; j++) {
		      var type = lineView.changes[j];
		      if (type == "text") { updateLineText(cm, lineView); }
		      else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); }
		      else if (type == "class") { updateLineClasses(cm, lineView); }
		      else if (type == "widget") { updateLineWidgets(cm, lineView, dims); }
		    }
		    lineView.changes = null;
		  }

// Lines with gutter elements, widgets or a background class need to
		  // be wrapped, and have the extra elements added to the wrapper div
		  function ensureLineWrapped(lineView) {
		    if (lineView.node == lineView.text) {
		      lineView.node = elt("div", null, null, "position: relative");
		      if (lineView.text.parentNode)
		        { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); }
		      lineView.node.appendChild(lineView.text);
		      if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; }
		    }
		    return lineView.node
		  }

// Wrapper around buildLineContent which will reuse the structure
		  // in display.externalMeasured when possible.
		  function getLineContent(cm, lineView) {
		    var ext = cm.display.externalMeasured;
		    if (ext && ext.line == lineView.line) {
		      cm.display.externalMeasured = null;
		      lineView.measure = ext.measure;
		      return ext.built
		    }
		    return buildLineContent(cm, lineView)
		  }

// Redraw the line's text. Interacts with the background and text
		  // classes because the mode may output tokens that influence these
		  // classes.
		  function updateLineText(cm, lineView) {
		    var cls = lineView.text.className;
		    var built = getLineContent(cm, lineView);
		    if (lineView.text == lineView.node) { lineView.node = built.pre; }
		    lineView.text.parentNode.replaceChild(built.pre, lineView.text);
		    lineView.text = built.pre;
		    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
		      lineView.bgClass = built.bgClass;
		      lineView.textClass = built.textClass;
		      updateLineClasses(cm, lineView);
		    } else if (cls) {
		      lineView.text.className = cls;
		    }
		  }

// Build a line's DOM representation from scratch
		  function buildLineElement(cm, lineView, lineN, dims) {
		    var built = getLineContent(cm, lineView);
		    lineView.text = lineView.node = built.pre;
		    if (built.bgClass) { lineView.bgClass = built.bgClass; }
		    if (built.textClass) { lineView.textClass = built.textClass; }

updateLineClasses(cm, lineView);
		    updateLineGutter(cm, lineView, lineN, dims);
		    insertLineWidgets(cm, lineView, dims);
		    return lineView.node
		  }

// A lineView may contain multiple logical lines (when merged by
		  // collapsed spans). The widgets for all of them need to be drawn.
		  function insertLineWidgets(cm, lineView, dims) {
		    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
		    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
		      { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } }
		  }

// Return true when the given mouse event happened in a widget
		  function eventInWidget(display, e) {
		    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
		      if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
		          (n.parentNode == display.sizer && n != display.mover))
		        { return true }
		    }
		  }

// POSITION MEASUREMENT

function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
		  function displayWidth(cm) {
		    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
		  }
		  function displayHeight(cm) {
		    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
		  }

// Ensure the lineView.wrapping.heights array is populated. This is
		  // an array of bottom offsets for the lines that make up a drawn
		  // line. When lineWrapping is on, there might be more than one
		  // height.
		  function ensureLineHeights(cm, lineView, rect) {
		    var wrapping = cm.options.lineWrapping;
		    var curWidth = wrapping && displayWidth(cm);
		    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
		      var heights = lineView.measure.heights = [];
		      if (wrapping) {
		        lineView.measure.width = curWidth;
		        var rects = lineView.text.firstChild.getClientRects();
		        for (var i = 0; i < rects.length - 1; i++) {
		          var cur = rects[i], next = rects[i + 1];
		          if (Math.abs(cur.bottom - next.bottom) > 2)
		            { heights.push((cur.bottom + next.top) / 2 - rect.top); }
		        }
		      }
		      heights.push(rect.bottom - rect.top);
		    }
		  }

// Find a line map (mapping character offsets to text nodes) and a
		  // measurement cache for the given line number. (A line view might
		  // contain multiple lines when collapsed ranges are present.)
		  function mapFromLineView(lineView, line, lineN) {
		    if (lineView.line == line)
		      { return {map: lineView.measure.map, cache: lineView.measure.cache} }
		    if (lineView.rest) {
		      for (var i = 0; i < lineView.rest.length; i++)
		        { if (lineView.rest[i] == line)
		          { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
		      for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
		        { if (lineNo(lineView.rest[i$1]) > lineN)
		          { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
		    }
		  }

// Render a line into the hidden node display.externalMeasured. Used
		  // when measurement is needed for a line that's not in the viewport.
		  function updateExternalMeasurement(cm, line) {
		    line = visualLine(line);
		    var lineN = lineNo(line);
		    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
		    view.lineN = lineN;
		    var built = view.built = buildLineContent(cm, view);
		    view.text = built.pre;
		    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
		    return view
		  }

// Get a {top, bottom, left, right} box (in line-local coordinates)
		  // for a given character.
		  function measureChar(cm, line, ch, bias) {
		    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
		  }

// Find a line view that corresponds to the given line number.
		  function findViewForLine(cm, lineN) {
		    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
		      { return cm.display.view[findViewIndex(cm, lineN)] }
		    var ext = cm.display.externalMeasured;
		    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
		      { return ext }
		  }

// Measurement can be split in two steps, the set-up work that
		  // applies to the whole line, and the measurement of the actual
		  // character. Functions like coordsChar, that need to do a lot of
		  // measurements in a row, can thus ensure that the set-up work is
		  // only done once.
		  function prepareMeasureForLine(cm, line) {
		    var lineN = lineNo(line);
		    var view = findViewForLine(cm, lineN);
		    if (view && !view.text) {
		      view = null;
		    } else if (view && view.changes) {
		      updateLineForChanges(cm, view, lineN, getDimensions(cm));
		      cm.curOp.forceUpdate = true;
		    }
		    if (!view)
		      { view = updateExternalMeasurement(cm, line); }

var info = mapFromLineView(view, line, lineN);
		    return {
		      line: line, view: view, rect: null,
		      map: info.map, cache: info.cache, before: info.before,
		      hasHeights: false
		    }
		  }

// Given a prepared measurement object, measures the position of an
		  // actual character (or fetches it from the cache).
		  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
		    if (prepared.before) { ch = -1; }
		    var key = ch + (bias || ""), found;
		    if (prepared.cache.hasOwnProperty(key)) {
		      found = prepared.cache[key];
		    } else {
		      if (!prepared.rect)
		        { prepared.rect = prepared.view.text.getBoundingClientRect(); }
		      if (!prepared.hasHeights) {
		        ensureLineHeights(cm, prepared.view, prepared.rect);
		        prepared.hasHeights = true;
		      }
		      found = measureCharInner(cm, prepared, ch, bias);
		      if (!found.bogus) { prepared.cache[key] = found; }
		    }
		    return {left: found.left, right: found.right,
		            top: varHeight ? found.rtop : found.top,
		            bottom: varHeight ? found.rbottom : found.bottom}
		  }

var nullRect = {left: 0, right: 0, top: 0, bottom: 0};

function measureCharInner(cm, prepared, ch, bias) {
		    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
		    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;

var rect;
		    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
		      for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
		        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; }
		        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; }
		        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
		          { rect = node.parentNode.getBoundingClientRect(); }
		        else
		          { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); }
		        if (rect.left || rect.right || start == 0) { break }
		        end = start;
		        start = start - 1;
		        collapse = "right";
		      }
		      if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); }
		    } else { // If it is a widget, simply get the box for the whole widget.
		      if (start > 0) { collapse = bias = "right"; }
		      var rects;
		      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
		        { rect = rects[bias == "right" ? rects.length - 1 : 0]; }
		      else
		        { rect = node.getBoundingClientRect(); }
		    }
		    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
		      var rSpan = node.parentNode.getClientRects()[0];
		      if (rSpan)
		        { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; }
		      else
		        { rect = nullRect; }
		    }

return result
		  }

// Work around problem with bounding client rects on ranges being
		  // returned incorrectly when zoomed on IE10 and below.
		  function maybeUpdateRectForZooming(measure, rect) {
		    if (!window.screen || screen.logicalXDPI == null ||
		        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
		      { return rect }
		    var scaleX = screen.logicalXDPI / screen.deviceXDPI;
		    var scaleY = screen.logicalYDPI / screen.deviceYDPI;
		    return {left: rect.left * scaleX, right: rect.right * scaleX,
		            top: rect.top * scaleY, bottom: rect.bottom * scaleY}
		  }

function clearLineMeasurementCache(cm) {
		    cm.display.externalMeasure = null;
		    removeChildren(cm.display.lineMeasure);
		    for (var i = 0; i < cm.display.view.length; i++)
		      { clearLineMeasurementCacheFor(cm.display.view[i]); }
		  }

function clearCaches(cm) {
		    clearLineMeasurementCache(cm);
		    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
		    if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; }
		    cm.display.lineNumChars = null;
		  }

function pageScrollX(doc) {
		    // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206
		    // which causes page_Offset and bounding client rects to use
		    // different reference viewports and invalidate our calculations.
		    if (chrome && android) { return -(doc.body.getBoundingClientRect().left - parseInt(getComputedStyle(doc.body).marginLeft)) }
		    return doc.defaultView.pageXOffset || (doc.documentElement || doc.body).scrollLeft
		  }
		  function pageScrollY(doc) {
		    if (chrome && android) { return -(doc.body.getBoundingClientRect().top - parseInt(getComputedStyle(doc.body).marginTop)) }
		    return doc.defaultView.pageYOffset || (doc.documentElement || doc.body).scrollTop
		  }

// Converts a {top, bottom, left, right} box from line-local
		  // coordinates into another coordinate system. Context may be one of
		  // "line", "div" (display.lineDiv), "local"./null (editor), "window",
		  // or "page".
		  function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
		    if (!includeWidgets) {
		      var height = widgetTopHeight(lineObj);
		      rect.top += height; rect.bottom += height;
		    }
		    if (context == "line") { return rect }
		    if (!context) { context = "local"; }
		    var yOff = heightAtLine(lineObj);
		    if (context == "local") { yOff += paddingTop(cm.display); }
		    else { yOff -= cm.display.viewOffset; }
		    if (context == "page" || context == "window") {
		      var lOff = cm.display.lineSpace.getBoundingClientRect();
		      yOff += lOff.top + (context == "window" ? 0 : pageScrollY(doc(cm)));
		      var xOff = lOff.left + (context == "window" ? 0 : pageScrollX(doc(cm)));
		      rect.left += xOff; rect.right += xOff;
		    }
		    rect.top += yOff; rect.bottom += yOff;
		    return rect
		  }

// Coverts a box from "div" coords to another coordinate system.
		  // Context may be "window", "page", "div", or "local"./null.
		  function fromCoordSystem(cm, coords, context) {
		    if (context == "div") { return coords }
		    var left = coords.left, top = coords.top;
		    // First move into "page" coordinate system
		    if (context == "page") {
		      left -= pageScrollX(doc(cm));
		      top -= pageScrollY(doc(cm));
		    } else if (context == "local" || !context) {
		      var localBox = cm.display.sizer.getBoundingClientRect();
		      left += localBox.left;
		      top += localBox.top;
		    }

var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
		    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
		  }

function charCoords(cm, pos, context, lineObj, bias) {
		    if (!lineObj) { lineObj = getLine(cm.doc, pos.line); }
		    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
		  }

// Returns a box for a given cursor position, which may have an
		  // 'other' property containing the position of the secondary cursor
		  // on a bidi boundary.
		  // A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
		  // and after `char - 1` in writing order of `char - 1`
		  // A cursor Pos(line, char, "after") is on the same visual line as `char`
		  // and before `char` in writing order of `char`
		  // Examples (upper-case letters are RTL, lower-case are LTR):
		  //     Pos(0, 1, ...)
		  //     before   after
		  // ab     a|b     a|b
		  // aB     a|B     aB|
		  // Ab     |Ab     A|b
		  // AB     B|A     B|A
		  // Every position after the last character on a line is considered to stick
		  // to the last character on the line.
		  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
		    lineObj = lineObj || getLine(cm.doc, pos.line);
		    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
		    function get(ch, right) {
		      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
		      if (right) { m.left = m.right; } else { m.right = m.left; }
		      return intoCoordSystem(cm, lineObj, m, context)
		    }
		    var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky;
		    if (ch >= lineObj.text.length) {
		      ch = lineObj.text.length;
		      sticky = "before";
		    } else if (ch <= 0) {
		      ch = 0;
		      sticky = "after";
		    }
		    if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }

function getBidi(ch, partPos, invert) {
		      var part = order[partPos], right = part.level == 1;
		      return get(invert ? ch - 1 : ch, right != invert)
		    }
		    var partPos = getBidiPartAt(order, ch, sticky);
		    var other = bidiOther;
		    var val = getBidi(ch, partPos, sticky == "before");
		    if (other != null) { val.other = getBidi(ch, other, sticky != "before"); }
		    return val
		  }

// Used to cheaply estimate the coordinates for a position. Used for
		  // intermediate scroll updates.
		  function estimateCoords(cm, pos) {
		    var left = 0;
		    pos = clipPos(cm.doc, pos);
		    if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; }
		    var lineObj = getLine(cm.doc, pos.line);
		    var top = heightAtLine(lineObj) + paddingTop(cm.display);
		    return {left: left, right: left, top: top, bottom: top + lineObj.height}
		  }

// Positions returned by coordsChar contain some extra information.
		  // xRel is the relative x position of the input coordinates compared
		  // to the found position (so xRel > 0 means the coordinates are to
		  // the right of the character position, for example). When outside
		  // is true, that means the coordinates lie outside the line's
		  // vertical range.
		  function PosWithInfo(line, ch, sticky, outside, xRel) {
		    var pos = Pos(line, ch, sticky);
		    pos.xRel = xRel;
		    if (outside) { pos.outside = outside; }
		    return pos
		  }

// Compute the character position closest to the given coordinates.
		  // Input must be lineSpace-local ("div" coordinate system).
		  function coordsChar(cm, x, y) {
		    var doc = cm.doc;
		    y += cm.display.viewOffset;
		    if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) }
		    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
		    if (lineN > last)
		      { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) }
		    if (x < 0) { x = 0; }

function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
		    if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); }
		    var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top;
		    return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
		  }

// Returns true if the given side of a box is after the given
		  // coordinates, in top-to-bottom, left-to-right order.
		  function boxIsAfter(box, x, y, left) {
		    return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x
		  }

function coordsCharInner(cm, lineObj, lineNo, x, y) {
		    // Move y into line-local coordinate space
		    y -= heightAtLine(lineObj);
		    var preparedMeasure = prepareMeasureForLine(cm, lineObj);
		    // When directly calling `measureCharPrepared`, we have to adjust
		    // for the widgets at this line.
		    var widgetHeight = widgetTopHeight(lineObj);
		    var begin = 0, end = lineObj.text.length, ltr = true;

var order = getOrder(lineObj, cm.doc.direction);
		    // If the line isn't plain left-to-right text, first figure out
		    // which bidi section the coordinates fall into.
		    if (order) {
		      var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart)
		                   (cm, lineObj, lineNo, preparedMeasure, order, x, y);
		      ltr = part.level != 1;
		      // The awkward -1 offsets are needed because findFirst (called
		      // on these below) will treat its first bound as inclusive,
		      // second as exclusive, but we want to actually address the
		      // characters in the part's range
		      begin = ltr ? part.from : part.to - 1;
		      end = ltr ? part.to : part.from - 1;
		    }

// A binary search to find the first character whose bounding box
		    // starts after the coordinates. If we run across any whose box wrap
		    // the coordinates, store that.
		    var chAround = null, boxAround = null;
		    var ch = findFirst(function (ch) {
		      var box = measureCharPrepared(cm, preparedMeasure, ch);
		      box.top += widgetHeight; box.bottom += widgetHeight;
		      if (!boxIsAfter(box, x, y, false)) { return false }
		      if (box.top <= y && box.left <= x) {
		        chAround = ch;
		        boxAround = box;
		      }
		      return true
		    }, begin, end);

var baseX, sticky, outside = false;
		    // If a box around the coordinates was found, use that
		    if (boxAround) {
		      // Distinguish coordinates nearer to the left or right side of the box
		      var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr;
		      ch = chAround + (atStart ? 0 : 1);
		      sticky = atStart ? "after" : "before";
		      baseX = atLeft ? boxAround.left : boxAround.right;
		    } else {
		      // (Adjust for extended bound, if necessary.)
		      if (!ltr && (ch == end || ch == begin)) { ch++; }
		      // To determine which side to associate with, get the box to the
		      // left of the character and compare it's vertical position to the
		      // coordinates
		      sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" :
		        (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ?
		        "after" : "before";
		      // Now get accurate coordinates for this place, in order to get a
		      // base X position
		      var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure);
		      baseX = coords.left;
		      outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0;
		    }

ch = skipExtendingChars(lineObj.text, ch, 1);
		    return PosWithInfo(lineNo, ch, sticky, outside, x - baseX)
		  }

var measureText;
		  // Compute the default text height.
		  function textHeight(display) {
		    if (display.cachedTextHeight != null) { return display.cachedTextHeight }
		    if (measureText == null) {
		      measureText = elt("pre", null, "CodeMirror-line-like");
		      // Measure a bunch of lines, for browsers that compute
		      // fractional heights.
		      for (var i = 0; i < 49; ++i) {
		        measureText.appendChild(document.createTextNode("x"));
		        measureText.appendChild(elt("br"));
		      }
		      measureText.appendChild(document.createTextNode("x"));
		    }
		    removeChildrenAndAdd(display.measure, measureText);
		    var height = measureText.offsetHeight / 50;
		    if (height > 3) { display.cachedTextHeight = height; }
		    removeChildren(display.measure);
		    return height || 1
		  }

// Compute the default character width.
		  function charWidth(display) {
		    if (display.cachedCharWidth != null) { return display.cachedCharWidth }
		    var anchor = elt("span", "xxxxxxxxxx");
		    var pre = elt("pre", [anchor], "CodeMirror-line-like");
		    removeChildrenAndAdd(display.measure, pre);
		    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
		    if (width > 2) { display.cachedCharWidth = width; }
		    return width || 10
		  }

// Do a bulk-read of the DOM positions and sizes needed to draw the
		  // view, so that we don't interleave reading and writing to the DOM.
		  function getDimensions(cm) {
		    var d = cm.display, left = {}, width = {};
		    var gutterLeft = d.gutters.clientLeft;
		    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
		      var id = cm.display.gutterSpecs[i].className;
		      left[id] = n.offsetLeft + n.clientLeft + gutterLeft;
		      width[id] = n.clientWidth;
		    }
		    return {fixedPos: compensateForHScroll(d),
		            gutterTotalWidth: d.gutters.offsetWidth,
		            gutterLeft: left,
		            gutterWidth: width,
		            wrapperWidth: d.wrapper.clientWidth}
		  }

// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
		  // but using getBoundingClientRect to get a sub-pixel-accurate
		  // result.
		  function compensateForHScroll(display) {
		    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
		  }

// Returns a function that estimates the height of a line, to use as
		  // first approximation until the line becomes visible (and is thus
		  // properly measurable).
		  function estimateHeight(cm) {
		    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
		    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
		    return function (line) {
		      if (lineIsHidden(cm.doc, line)) { return 0 }

var widgetsHeight = 0;
		      if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
		        if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; }
		      } }

if (wrapping)
		        { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
		      else
		        { return widgetsHeight + th }
		    }
		  }

// Given a mouse event, find the corresponding position. If liberal
		  // is false, it checks whether a gutter or scrollbar was clicked,
		  // and returns null if it was. forRect is used by rectangular
		  // selections, and tries to estimate a character position even for
		  // coordinates beyond the right of the text.
		  function posFromMouse(cm, e, liberal, forRect) {
		    var display = cm.display;
		    if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }

var x, y, space = display.lineSpace.getBoundingClientRect();
		    // Fails unpredictably on IE[67] when mouse is dragged around quickly.
		    try { x = e.clientX - space.left; y = e.clientY - space.top; }
		    catch (e$1) { return null }
		    var coords = coordsChar(cm, x, y), line;
		    if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
		      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
		      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
		    }
		    return coords
		  }

// Find the view element corresponding to a given line. Return null
		  // when the line isn't visible.
		  function findViewIndex(cm, n) {
		    if (n >= cm.display.viewTo) { return null }
		    n -= cm.display.viewFrom;
		    if (n < 0) { return null }
		    var view = cm.display.view;
		    for (var i = 0; i < view.length; i++) {
		      n -= view[i].size;
		      if (n < 0) { return i }
		    }
		  }

// Updates the display.view data structure for a given change to the
		  // document. From and to are in pre-change coordinates. Lendiff is
		  // the amount of lines added or subtracted by the change. This is
		  // used for changes that span multiple lines, or change the way
		  // lines are divided into visual lines. regLineChange (below)
		  // registers single-line changes.
		  function regChange(cm, from, to, lendiff) {
		    if (from == null) { from = cm.doc.first; }
		    if (to == null) { to = cm.doc.first + cm.doc.size; }
		    if (!lendiff) { lendiff = 0; }

var display = cm.display;
		    if (lendiff && to < display.viewTo &&
		        (display.updateLineNumbers == null || display.updateLineNumbers > from))
		      { display.updateLineNumbers = from; }

cm.curOp.viewChanged = true;

if (from >= display.viewTo) { // Change after
		      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
		        { resetView(cm); }
		    } else if (to <= display.viewFrom) { // Change before
		      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
		        resetView(cm);
		      } else {
		        display.viewFrom += lendiff;
		        display.viewTo += lendiff;
		      }
		    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
		      resetView(cm);
		    } else if (from <= display.viewFrom) { // Top overlap
		      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
		      if (cut) {
		        display.view = display.view.slice(cut.index);
		        display.viewFrom = cut.lineN;
		        display.viewTo += lendiff;
		      } else {
		        resetView(cm);
		      }
		    } else if (to >= display.viewTo) { // Bottom overlap
		      var cut$1 = viewCuttingPoint(cm, from, from, -1);
		      if (cut$1) {
		        display.view = display.view.slice(0, cut$1.index);
		        display.viewTo = cut$1.lineN;
		      } else {
		        resetView(cm);
		      }
		    } else { // Gap in the middle
		      var cutTop = viewCuttingPoint(cm, from, from, -1);
		      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
		      if (cutTop && cutBot) {
		        display.view = display.view.slice(0, cutTop.index)
		          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
		          .concat(display.view.slice(cutBot.index));
		        display.viewTo += lendiff;
		      } else {
		        resetView(cm);
		      }
		    }

// Register a change to a single line. Type must be one of "text",
		  // "gutter", "class", "widget"
		  function regLineChange(cm, line, type) {
		    cm.curOp.viewChanged = true;
		    var display = cm.display, ext = cm.display.externalMeasured;
		    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
		      { display.externalMeasured = null; }

if (line < display.viewFrom || line >= display.viewTo) { return }
		    var lineView = display.view[findViewIndex(cm, line)];
		    if (lineView.node == null) { return }
		    var arr = lineView.changes || (lineView.changes = []);
		    if (indexOf(arr, type) == -1) { arr.push(type); }
		  }

// Clear the view.
		  function resetView(cm) {
		    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
		    cm.display.view = [];
		    cm.display.viewOffset = 0;
		  }

// Force the view to cover a given range, adding empty view element
		  // or clipping off existing ones as needed.
		  function adjustView(cm, from, to) {
		    var display = cm.display, view = display.view;
		    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
		      display.view = buildViewArray(cm, from, to);
		      display.viewFrom = from;
		    } else {
		      if (display.viewFrom > from)
		        { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); }
		      else if (display.viewFrom < from)
		        { display.view = display.view.slice(findViewIndex(cm, from)); }
		      display.viewFrom = from;
		      if (display.viewTo < to)
		        { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); }
		      else if (display.viewTo > to)
		        { display.view = display.view.slice(0, findViewIndex(cm, to)); }
		    }
		    display.viewTo = to;
		  }

// Count the number of lines in the view whose DOM representation is
		  // out of date (or nonexistent).
		  function countDirtyView(cm) {
		    var view = cm.display.view, dirty = 0;
		    for (var i = 0; i < view.length; i++) {
		      var lineView = view[i];
		      if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; }
		    }
		    return dirty
		  }

function updateSelection(cm) {
		    cm.display.input.showSelection(cm.display.input.prepareSelection());
		  }

function prepareSelection(cm, primary) {
		    if ( primary === void 0 ) primary = true;

var doc = cm.doc, result = {};
		    var curFragment = result.cursors = document.createDocumentFragment();
		    var selFragment = result.selection = document.createDocumentFragment();

// Draws a cursor for the given range
		  function drawSelectionCursor(cm, head, output) {
		    var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);

var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
		    cursor.style.left = pos.left + "px";
		    cursor.style.top = pos.top + "px";
		    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";

if (/\bcm-fat-cursor\b/.test(cm.getWrapperElement().className)) {
		      var charPos = charCoords(cm, head, "div", null, null);
		      var width = charPos.right - charPos.left;
		      cursor.style.width = (width > 0 ? width : cm.defaultCharWidth()) + "px";
		    }

if (pos.other) {
		      // Secondary cursor, shown when on a 'jump' in bi-directional text
		      var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
		      otherCursor.style.display = "";
		      otherCursor.style.left = pos.other.left + "px";
		      otherCursor.style.top = pos.other.top + "px";
		      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
		    }
		  }

function cmpCoords(a, b) { return a.top - b.top || a.left - b.left }

// Draws the given range as a highlighted selection
		  function drawSelectionRange(cm, range, output) {
		    var display = cm.display, doc = cm.doc;
		    var fragment = document.createDocumentFragment();
		    var padding = paddingH(cm.display), leftSide = padding.left;
		    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
		    var docLTR = doc.direction == "ltr";

function add(left, top, width, bottom) {
		      if (top < 0) { top = 0; }
		      top = Math.round(top);
		      bottom = Math.round(bottom);
		      fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")));
		    }

function drawForLine(line, fromArg, toArg) {
		      var lineObj = getLine(doc, line);
		      var lineLen = lineObj.text.length;
		      var start, end;
		      function coords(ch, bias) {
		        return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
		      }

function wrapX(pos, dir, side) {
		        var extent = wrappedLineExtentChar(cm, lineObj, null, pos);
		        var prop = (dir == "ltr") == (side == "after") ? "left" : "right";
		        var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1);
		        return coords(ch, prop)[prop]
		      }

var order = getOrder(lineObj, doc.direction);
		      iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) {
		        var ltr = dir == "ltr";
		        var fromPos = coords(from, ltr ? "left" : "right");
		        var toPos = coords(to - 1, ltr ? "right" : "left");

if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; }
		        if (cmpCoords(toPos, start) < 0) { start = toPos; }
		        if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; }
		        if (cmpCoords(toPos, end) < 0) { end = toPos; }
		      });
		      return {start: start, end: end}
		    }

output.appendChild(fragment);
		  }

// Cursor-blinking
		  function restartBlink(cm) {
		    if (!cm.state.focused) { return }
		    var display = cm.display;
		    clearInterval(display.blinker);
		    var on = true;
		    display.cursorDiv.style.visibility = "";
		    if (cm.options.cursorBlinkRate > 0)
		      { display.blinker = setInterval(function () {
		        if (!cm.hasFocus()) { onBlur(cm); }
		        display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
		      }, cm.options.cursorBlinkRate); }
		    else if (cm.options.cursorBlinkRate < 0)
		      { display.cursorDiv.style.visibility = "hidden"; }
		  }

function ensureFocus(cm) {
		    if (!cm.hasFocus()) {
		      cm.display.input.focus();
		      if (!cm.state.focused) { onFocus(cm); }
		    }
		  }

function onFocus(cm, e) {
		    if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; }

if (cm.options.readOnly == "nocursor") { return }
		    if (!cm.state.focused) {
		      signal(cm, "focus", cm, e);
		      cm.state.focused = true;
		      addClass(cm.display.wrapper, "CodeMirror-focused");
		      // This test prevents this from firing when a context
		      // menu is closed (since the input reset would kill the
		      // select-all detection hack)
		      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
		        cm.display.input.reset();
		        if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730
		      }
		      cm.display.input.receivedFocus();
		    }
		    restartBlink(cm);
		  }
		  function onBlur(cm, e) {
		    if (cm.state.delayingBlurEvent) { return }

if (cm.state.focused) {
		      signal(cm, "blur", cm, e);
		      cm.state.focused = false;
		      rmClass(cm.display.wrapper, "CodeMirror-focused");
		    }
		    clearInterval(cm.display.blinker);
		    setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150);
		  }

// Read the actual heights of the rendered lines, and update their
		  // stored heights to match.
		  function updateHeightsInViewport(cm) {
		    var display = cm.display;
		    var prevBottom = display.lineDiv.offsetTop;
		    var viewTop = Math.max(0, display.scroller.getBoundingClientRect().top);
		    var oldHeight = display.lineDiv.getBoundingClientRect().top;
		    var mustScroll = 0;
		    for (var i = 0; i < display.view.length; i++) {
		      var cur = display.view[i], wrapping = cm.options.lineWrapping;
		      var height = (void 0), width = 0;
		      if (cur.hidden) { continue }
		      oldHeight += cur.line.height;
		      if (ie && ie_version < 8) {
		        var bot = cur.node.offsetTop + cur.node.offsetHeight;
		        height = bot - prevBottom;
		        prevBottom = bot;
		      } else {
		        var box = cur.node.getBoundingClientRect();
		        height = box.bottom - box.top;
		        // Check that lines don't extend past the right of the current
		        // editor width
		        if (!wrapping && cur.text.firstChild)
		          { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; }
		      }
		      var diff = cur.line.height - height;
		      if (diff > .005 || diff < -.005) {
		        if (oldHeight < viewTop) { mustScroll -= diff; }
		        updateLineHeight(cur.line, height);
		        updateWidgetHeight(cur.line);
		        if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
		          { updateWidgetHeight(cur.rest[j]); } }
		      }
		      if (width > cm.display.sizerWidth) {
		        var chWidth = Math.ceil(width / charWidth(cm.display));
		        if (chWidth > cm.display.maxLineLength) {
		          cm.display.maxLineLength = chWidth;
		          cm.display.maxLine = cur.line;
		          cm.display.maxLineChanged = true;
		        }
		      }
		    }
		    if (Math.abs(mustScroll) > 2) { display.scroller.scrollTop += mustScroll; }
		  }

// Read and store the height of line widgets associated with the
		  // given line.
		  function updateWidgetHeight(line) {
		    if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) {
		      var w = line.widgets[i], parent = w.node.parentNode;
		      if (parent) { w.height = parent.offsetHeight; }
		    } }
		  }

// Compute the lines that are visible in a given viewport (defaults
		  // the the current scroll position). viewport may contain top,
		  // height, and ensure (see op.scrollToPos) properties.
		  function visibleLines(display, doc, viewport) {
		    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
		    top = Math.floor(top - paddingTop(display));
		    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;

// SCROLLING THINGS INTO VIEW

// If an editor sits on the top or bottom of the window, partially
		  // scrolled out of view, this ensures that the cursor is visible.
		  function maybeScrollWindow(cm, rect) {
		    if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }

// Scroll a given position into view (immediately), verifying that
		  // it actually became visible (as line heights are accurately
		  // measured, the position of something may 'drift' during drawing).
		  function scrollPosIntoView(cm, pos, end, margin) {
		    if (margin == null) { margin = 0; }
		    var rect;
		    if (!cm.options.lineWrapping && pos == end) {
		      // Set pos and end to the cursor positions around the character pos sticks to
		      // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch
		      // If pos == Pos(_, 0, "before"), pos and end are unchanged
		      end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos;
		      pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos;
		    }
		    for (var limit = 0; limit < 5; limit++) {
		      var changed = false;
		      var coords = cursorCoords(cm, pos);
		      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
		      rect = {left: Math.min(coords.left, endCoords.left),
		              top: Math.min(coords.top, endCoords.top) - margin,
		              right: Math.max(coords.left, endCoords.left),
		              bottom: Math.max(coords.bottom, endCoords.bottom) + margin};
		      var scrollPos = calculateScrollPos(cm, rect);
		      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
		      if (scrollPos.scrollTop != null) {
		        updateScrollTop(cm, scrollPos.scrollTop);
		        if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; }
		      }
		      if (scrollPos.scrollLeft != null) {
		        setScrollLeft(cm, scrollPos.scrollLeft);
		        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; }
		      }
		      if (!changed) { break }
		    }
		    return rect
		  }

// Scroll a given set of coordinates into view (immediately).
		  function scrollIntoView(cm, rect) {
		    var scrollPos = calculateScrollPos(cm, rect);
		    if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); }
		    if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); }
		  }

// Calculate a new scroll position needed to scroll the given
		  // rectangle into view. Returns an object with scrollTop and
		  // scrollLeft properties. When these are undefined, the
		  // vertical/horizontal position does not need to be adjusted.
		  function calculateScrollPos(cm, rect) {
		    var display = cm.display, snapMargin = textHeight(cm.display);
		    if (rect.top < 0) { rect.top = 0; }
		    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
		    var screen = displayHeight(cm), result = {};
		    if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; }
		    var docBottom = cm.doc.height + paddingVert(display);
		    var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin;
		    if (rect.top < screentop) {
		      result.scrollTop = atTop ? 0 : rect.top;
		    } else if (rect.bottom > screentop + screen) {
		      var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen);
		      if (newTop != screentop) { result.scrollTop = newTop; }
		    }

// Store a relative adjustment to the scroll position in the current
		  // operation (to be applied when the operation finishes).
		  function addToScrollTop(cm, top) {
		    if (top == null) { return }
		    resolveScrollToPos(cm);
		    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
		  }

// Make sure that at the end of the operation the current cursor is
		  // shown.
		  function ensureCursorVisible(cm) {
		    resolveScrollToPos(cm);
		    var cur = cm.getCursor();
		    cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin};
		  }

function scrollToRange(cm, range) {
		    resolveScrollToPos(cm);
		    cm.curOp.scrollToPos = range;
		  }

// When an operation has its scrollToPos property set, and another
		  // scroll action is applied before the end of the operation, this
		  // 'simulates' scrolling that position into view in a cheap way, so
		  // that the effect of intermediate scroll commands is not ignored.
		  function resolveScrollToPos(cm) {
		    var range = cm.curOp.scrollToPos;
		    if (range) {
		      cm.curOp.scrollToPos = null;
		      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
		      scrollToCoordsRange(cm, from, to, range.margin);
		    }
		  }

function scrollToCoordsRange(cm, from, to, margin) {
		    var sPos = calculateScrollPos(cm, {
		      left: Math.min(from.left, to.left),
		      top: Math.min(from.top, to.top) - margin,
		      right: Math.max(from.right, to.right),
		      bottom: Math.max(from.bottom, to.bottom) + margin
		    });
		    scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop);
		  }

// Sync the scrollable area and scrollbars, ensure the viewport
		  // covers the visible area.
		  function updateScrollTop(cm, val) {
		    if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
		    if (!gecko) { updateDisplaySimple(cm, {top: val}); }
		    setScrollTop(cm, val, true);
		    if (gecko) { updateDisplaySimple(cm); }
		    startWorker(cm, 100);
		  }

// Sync scroller and scrollbar, ensure the gutter elements are
		  // aligned.
		  function setScrollLeft(cm, val, isScroller, forceScroll) {
		    val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth));
		    if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }
		    cm.doc.scrollLeft = val;
		    alignHorizontally(cm);
		    if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; }
		    cm.display.scrollbars.setScrollLeft(val);
		  }

// SCROLLBARS

// Prepare DOM reads needed to update the scrollbars. Done in one
		  // shot to minimize update/measure roundtrips.
		  function measureForScrollbars(cm) {
		    var d = cm.display, gutterW = d.gutters.offsetWidth;
		    var docH = Math.round(cm.doc.height + paddingVert(cm.display));
		    return {
		      clientHeight: d.scroller.clientHeight,
		      viewHeight: d.wrapper.clientHeight,
		      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
		      viewWidth: d.wrapper.clientWidth,
		      barLeft: cm.options.fixedGutter ? gutterW : 0,
		      docHeight: docH,
		      scrollHeight: docH + scrollGap(cm) + d.barHeight,
		      nativeBarWidth: d.nativeBarWidth,
		      gutterWidth: gutterW
		    }
		  }

var NativeScrollbars = function(place, scroll, cm) {
		    this.cm = cm;
		    var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
		    var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
		    vert.tabIndex = horiz.tabIndex = -1;
		    place(vert); place(horiz);

on(vert, "scroll", function () {
		      if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); }
		    });
		    on(horiz, "scroll", function () {
		      if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); }
		    });

this.checkedZeroWidth = false;
		    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
		    if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; }
		  };

NativeScrollbars.prototype.update = function (measure) {
		    var needsH = measure.scrollWidth > measure.clientWidth + 1;
		    var needsV = measure.scrollHeight > measure.clientHeight + 1;
		    var sWidth = measure.nativeBarWidth;

if (needsV) {
		      this.vert.style.display = "block";
		      this.vert.style.bottom = needsH ? sWidth + "px" : "0";
		      var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
		      // A bug in IE8 can cause this value to be negative, so guard it.
		      this.vert.firstChild.style.height =
		        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
		    } else {
		      this.vert.scrollTop = 0;
		      this.vert.style.display = "";
		      this.vert.firstChild.style.height = "0";
		    }

if (needsH) {
		      this.horiz.style.display = "block";
		      this.horiz.style.right = needsV ? sWidth + "px" : "0";
		      this.horiz.style.left = measure.barLeft + "px";
		      var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
		      this.horiz.firstChild.style.width =
		        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
		    } else {
		      this.horiz.style.display = "";
		      this.horiz.firstChild.style.width = "0";
		    }

if (!this.checkedZeroWidth && measure.clientHeight > 0) {
		      if (sWidth == 0) { this.zeroWidthHack(); }
		      this.checkedZeroWidth = true;
		    }

return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
		  };

NativeScrollbars.prototype.setScrollLeft = function (pos) {
		    if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; }
		    if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); }
		  };

NativeScrollbars.prototype.setScrollTop = function (pos) {
		    if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; }
		    if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); }
		  };

NativeScrollbars.prototype.zeroWidthHack = function () {
		    var w = mac && !mac_geMountainLion ? "12px" : "18px";
		    this.horiz.style.height = this.vert.style.width = w;
		    this.horiz.style.visibility = this.vert.style.visibility = "hidden";
		    this.disableHoriz = new Delayed;
		    this.disableVert = new Delayed;
		  };

NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {
		    bar.style.visibility = "";
		    function maybeDisable() {
		      // To find out whether the scrollbar is still visible, we
		      // check whether the element under the pixel in the bottom
		      // right corner of the scrollbar box is the scrollbar box
		      // itself (when the bar is still visible) or its filler child
		      // (when the bar is hidden). If it is still visible, we keep
		      // it enabled, if it's hidden, we disable pointer events.
		      var box = bar.getBoundingClientRect();
		      var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)
		          : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1);
		      if (elt != bar) { bar.style.visibility = "hidden"; }
		      else { delay.set(1000, maybeDisable); }
		    }
		    delay.set(1000, maybeDisable);
		  };

NativeScrollbars.prototype.clear = function () {
		    var parent = this.horiz.parentNode;
		    parent.removeChild(this.horiz);
		    parent.removeChild(this.vert);
		  };

var NullScrollbars = function () {};

NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
		  NullScrollbars.prototype.setScrollLeft = function () {};
		  NullScrollbars.prototype.setScrollTop = function () {};
		  NullScrollbars.prototype.clear = function () {};

// Re-synchronize the fake scrollbars with the actual size of the
		  // content.
		  function updateScrollbarsInner(cm, measure) {
		    var d = cm.display;
		    var sizes = d.scrollbars.update(measure);

d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
		    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
		    d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent";

if (sizes.right && sizes.bottom) {
		      d.scrollbarFiller.style.display = "block";
		      d.scrollbarFiller.style.height = sizes.bottom + "px";
		      d.scrollbarFiller.style.width = sizes.right + "px";
		    } else { d.scrollbarFiller.style.display = ""; }
		    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
		      d.gutterFiller.style.display = "block";
		      d.gutterFiller.style.height = sizes.bottom + "px";
		      d.gutterFiller.style.width = measure.gutterWidth + "px";
		    } else { d.gutterFiller.style.display = ""; }
		  }

var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};

function initScrollbars(cm) {
		    if (cm.display.scrollbars) {
		      cm.display.scrollbars.clear();
		      if (cm.display.scrollbars.addClass)
		        { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
		    }

cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
		      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
		      // Prevent clicks in the scrollbars from killing focus
		      on(node, "mousedown", function () {
		        if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); }
		      });
		      node.setAttribute("cm-not-content", "true");
		    }, function (pos, axis) {
		      if (axis == "horizontal") { setScrollLeft(cm, pos); }
		      else { updateScrollTop(cm, pos); }
		    }, cm);
		    if (cm.display.scrollbars.addClass)
		      { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); }
		  }

// Operations are used to wrap a series of changes to the editor
		  // state in such a way that each change won't have to update the
		  // cursor and display (which would be awkward, slow, and
		  // error-prone). Instead, display updates are batched and then all
		  // combined and executed at once.

var nextOpId = 0;
		  // Start a new operation.
		  function startOperation(cm) {
		    cm.curOp = {
		      cm: cm,
		      viewChanged: false,      // Flag that indicates that lines might need to be redrawn
		      startHeight: cm.doc.height, // Used to detect need to update scrollbar
		      forceUpdate: false,      // Used to force a redraw
		      updateInput: 0,       // Whether to reset the input textarea
		      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
		      changeObjs: null,        // Accumulated changes, for firing change events
		      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
		      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
		      selectionChanged: false, // Whether the selection needs to be redrawn
		      updateMaxLine: false,    // Set when the widest line needs to be determined anew
		      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
		      scrollToPos: null,       // Used to scroll to a specific position
		      focus: false,
		      id: ++nextOpId,          // Unique ID
		      markArrays: null         // Used by addMarkedSpan
		    };
		    pushOperation(cm.curOp);
		  }

// Finish an operation, updating the display and signalling delayed events
		  function endOperation(cm) {
		    var op = cm.curOp;
		    if (op) { finishOperation(op, function (group) {
		      for (var i = 0; i < group.ops.length; i++)
		        { group.ops[i].cm.curOp = null; }
		      endOperations(group);
		    }); }
		  }

// The DOM updates done when an operation finishes are batched so
		  // that the minimum number of relayouts are required.
		  function endOperations(group) {
		    var ops = group.ops;
		    for (var i = 0; i < ops.length; i++) // Read DOM
		      { endOperation_R1(ops[i]); }
		    for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
		      { endOperation_W1(ops[i$1]); }
		    for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
		      { endOperation_R2(ops[i$2]); }
		    for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
		      { endOperation_W2(ops[i$3]); }
		    for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
		      { endOperation_finish(ops[i$4]); }
		  }

function endOperation_R1(op) {
		    var cm = op.cm, display = cm.display;
		    maybeClipScrollbars(cm);
		    if (op.updateMaxLine) { findMaxLine(cm); }

op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
		      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
		                         op.scrollToPos.to.line >= display.viewTo) ||
		      display.maxLineChanged && cm.options.lineWrapping;
		    op.update = op.mustUpdate &&
		      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
		  }

function endOperation_W1(op) {
		    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
		  }

function endOperation_R2(op) {
		    var cm = op.cm, display = cm.display;
		    if (op.updatedDisplay) { updateHeightsInViewport(cm); }

op.barMeasure = measureForScrollbars(cm);

// If the max line changed since it was last measured, measure it,
		    // and ensure the document's width matches it.
		    // updateDisplay_W2 will use these properties to do the actual resizing
		    if (display.maxLineChanged && !cm.options.lineWrapping) {
		      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
		      cm.display.sizerWidth = op.adjustWidthTo;
		      op.barMeasure.scrollWidth =
		        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
		      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
		    }

if (op.updatedDisplay || op.selectionChanged)
		      { op.preparedSelection = display.input.prepareSelection(); }
		  }

function endOperation_W2(op) {
		    var cm = op.cm;

if (op.adjustWidthTo != null) {
		      cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
		      if (op.maxScrollLeft < cm.doc.scrollLeft)
		        { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); }
		      cm.display.maxLineChanged = false;
		    }

if (op.selectionChanged) { restartBlink(cm); }

if (cm.state.focused && op.updateInput)
		      { cm.display.input.reset(op.typing); }
		    if (takeFocus) { ensureFocus(op.cm); }
		  }

function endOperation_finish(op) {
		    var cm = op.cm, display = cm.display, doc = cm.doc;

if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); }

// Abort mouse wheel delta measurement, when scrolling explicitly
		    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
		      { display.wheelStartX = display.wheelStartY = null; }

// Propagate the scroll position to the actual DOM scroller
		    if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); }

if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); }
		    // If we need to scroll a specific position into view, do so.
		    if (op.scrollToPos) {
		      var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
		                                   clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
		      maybeScrollWindow(cm, rect);
		    }

// Fire events for markers that are hidden/unidden by editing or
		    // undoing
		    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
		    if (hidden) { for (var i = 0; i < hidden.length; ++i)
		      { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } }
		    if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
		      { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } }

if (display.wrapper.offsetHeight)
		      { doc.scrollTop = cm.display.scroller.scrollTop; }

// Fire change events, and delayed event handlers
		    if (op.changeObjs)
		      { signal(cm, "changes", cm, op.changeObjs); }
		    if (op.update)
		      { op.update.finish(); }
		  }

// Run the given function in an operation
		  function runInOp(cm, f) {
		    if (cm.curOp) { return f() }
		    startOperation(cm);
		    try { return f() }
		    finally { endOperation(cm); }
		  }
		  // Wraps a function in an operation. Returns the wrapped function.
		  function operation(cm, f) {
		    return function() {
		      if (cm.curOp) { return f.apply(cm, arguments) }
		      startOperation(cm);
		      try { return f.apply(cm, arguments) }
		      finally { endOperation(cm); }
		    }
		  }
		  // Used to add methods to editor and doc instances, wrapping them in
		  // operations.
		  function methodOp(f) {
		    return function() {
		      if (this.curOp) { return f.apply(this, arguments) }
		      startOperation(this);
		      try { return f.apply(this, arguments) }
		      finally { endOperation(this); }
		    }
		  }
		  function docMethodOp(f) {
		    return function() {
		      var cm = this.cm;
		      if (!cm || cm.curOp) { return f.apply(this, arguments) }
		      startOperation(cm);
		      try { return f.apply(this, arguments) }
		      finally { endOperation(cm); }
		    }
		  }

// HIGHLIGHT WORKER

function startWorker(cm, time) {
		    if (cm.doc.highlightFrontier < cm.display.viewTo)
		      { cm.state.highlight.set(time, bind(highlightWorker, cm)); }
		  }

function highlightWorker(cm) {
		    var doc = cm.doc;
		    if (doc.highlightFrontier >= cm.display.viewTo) { return }
		    var end = +new Date + cm.options.workTime;
		    var context = getContextBefore(cm, doc.highlightFrontier);
		    var changedLines = [];

doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
		      if (context.line >= cm.display.viewFrom) { // Visible
		        var oldStyles = line.styles;
		        var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null;
		        var highlighted = highlightLine(cm, line, context, true);
		        if (resetState) { context.state = resetState; }
		        line.styles = highlighted.styles;
		        var oldCls = line.styleClasses, newCls = highlighted.classes;
		        if (newCls) { line.styleClasses = newCls; }
		        else if (oldCls) { line.styleClasses = null; }
		        var ischange = !oldStyles || oldStyles.length != line.styles.length ||
		          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
		        for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; }
		        if (ischange) { changedLines.push(context.line); }
		        line.stateAfter = context.save();
		        context.nextLine();
		      } else {
		        if (line.text.length <= cm.options.maxHighlightLength)
		          { processLine(cm, line.text, context); }
		        line.stateAfter = context.line % 5 == 0 ? context.save() : null;
		        context.nextLine();
		      }
		      if (+new Date > end) {
		        startWorker(cm, cm.options.workDelay);
		        return true
		      }
		    });
		    doc.highlightFrontier = context.line;
		    doc.modeFrontier = Math.max(doc.modeFrontier, context.line);
		    if (changedLines.length) { runInOp(cm, function () {
		      for (var i = 0; i < changedLines.length; i++)
		        { regLineChange(cm, changedLines[i], "text"); }
		    }); }
		  }

// DISPLAY DRAWING

var DisplayUpdate = function(cm, viewport, force) {
		    var display = cm.display;

this.viewport = viewport;
		    // Store some values that we'll need later (but don't want to force a relayout for)
		    this.visible = visibleLines(display, cm.doc, viewport);
		    this.editorIsHidden = !display.wrapper.offsetWidth;
		    this.wrapperHeight = display.wrapper.clientHeight;
		    this.wrapperWidth = display.wrapper.clientWidth;
		    this.oldDisplayWidth = displayWidth(cm);
		    this.force = force;
		    this.dims = getDimensions(cm);
		    this.events = [];
		  };

DisplayUpdate.prototype.signal = function (emitter, type) {
		    if (hasHandler(emitter, type))
		      { this.events.push(arguments); }
		  };
		  DisplayUpdate.prototype.finish = function () {
		    for (var i = 0; i < this.events.length; i++)
		      { signal.apply(null, this.events[i]); }
		  };

function maybeClipScrollbars(cm) {
		    var display = cm.display;
		    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
		      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
		      display.heightForcer.style.height = scrollGap(cm) + "px";
		      display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
		      display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
		      display.scrollbarsClipped = true;
		    }
		  }

// Does the actual updating of the line display. Bails out
		  // (returning false) when there is nothing to be done and forced is
		  // false.
		  function updateDisplayIfNeeded(cm, update) {
		    var display = cm.display, doc = cm.doc;

if (update.editorIsHidden) {
		      resetView(cm);
		      return false
		    }

// Bail out if the visible area is already rendered and nothing changed.
		    if (!update.force &&
		        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
		        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
		        display.renderedView == display.view && countDirtyView(cm) == 0)
		      { return false }

if (maybeUpdateLineNumberWidth(cm)) {
		      resetView(cm);
		      update.dims = getDimensions(cm);
		    }

// Compute a suitable new viewport (from & to)
		    var end = doc.first + doc.size;
		    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
		    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
		    if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); }
		    if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); }
		    if (sawCollapsedSpans) {
		      from = visualLineNo(cm.doc, from);
		      to = visualLineEndNo(cm.doc, to);
		    }

var different = from != display.viewFrom || to != display.viewTo ||
		      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
		    adjustView(cm, from, to);

display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
		    // Position the mover div to align with the current scroll position
		    cm.display.mover.style.top = display.viewOffset + "px";

var toUpdate = countDirtyView(cm);
		    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
		        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
		      { return false }

// For big changes, we hide the enclosing element during the
		    // update, since that speeds up the operations on most browsers.
		    var selSnapshot = selectionSnapshot(cm);
		    if (toUpdate > 4) { display.lineDiv.style.display = "none"; }
		    patchDisplay(cm, display.updateLineNumbers, update.dims);
		    if (toUpdate > 4) { display.lineDiv.style.display = ""; }
		    display.renderedView = display.view;
		    // There might have been a widget with a focused element that got
		    // hidden or updated, if so re-focus it.
		    restoreSelection(selSnapshot);

// Prevent selection and cursors from interfering with the scroll
		    // width and height.
		    removeChildren(display.cursorDiv);
		    removeChildren(display.selectionDiv);
		    display.gutters.style.height = display.sizer.style.minHeight = 0;

if (different) {
		      display.lastWrapHeight = update.wrapperHeight;
		      display.lastWrapWidth = update.wrapperWidth;
		      startWorker(cm, 400);
		    }

display.updateLineNumbers = null;

return true
		  }

function postUpdateDisplay(cm, update) {
		    var viewport = update.viewport;

for (var first = true;; first = false) {
		      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
		        // Clip forced viewport to actual scrollable area.
		        if (viewport && viewport.top != null)
		          { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; }
		        // Updated line heights might result in the drawn area not
		        // actually covering the viewport. Keep looping until it does.
		        update.visible = visibleLines(cm.display, cm.doc, viewport);
		        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
		          { break }
		      } else if (first) {
		        update.visible = visibleLines(cm.display, cm.doc, viewport);
		      }
		      if (!updateDisplayIfNeeded(cm, update)) { break }
		      updateHeightsInViewport(cm);
		      var barMeasure = measureForScrollbars(cm);
		      updateSelection(cm);
		      updateScrollbars(cm, barMeasure);
		      setDocumentHeight(cm, barMeasure);
		      update.force = false;
		    }

update.signal(cm, "update", cm);
		    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
		      update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
		      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
		    }
		  }

function updateDisplaySimple(cm, viewport) {
		    var update = new DisplayUpdate(cm, viewport);
		    if (updateDisplayIfNeeded(cm, update)) {
		      updateHeightsInViewport(cm);
		      postUpdateDisplay(cm, update);
		      var barMeasure = measureForScrollbars(cm);
		      updateSelection(cm);
		      updateScrollbars(cm, barMeasure);
		      setDocumentHeight(cm, barMeasure);
		      update.finish();
		    }
		  }

// Sync the actual display DOM structure with display.view, removing
		  // nodes for lines that are no longer in view, and creating the ones
		  // that are not there yet, and updating the ones that are out of
		  // date.
		  function patchDisplay(cm, updateNumbersFrom, dims) {
		    var display = cm.display, lineNumbers = cm.options.lineNumbers;
		    var container = display.lineDiv, cur = container.firstChild;

function updateGutterSpace(display) {
		    var width = display.gutters.offsetWidth;
		    display.sizer.style.marginLeft = width + "px";
		    // Send an event to consumers responding to changes in gutter width.
		    signalLater(display, "gutterChanged", display);
		  }

function setDocumentHeight(cm, measure) {
		    cm.display.sizer.style.minHeight = measure.docHeight + "px";
		    cm.display.heightForcer.style.top = measure.docHeight + "px";
		    cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px";
		  }

// Re-align line numbers and gutter marks to compensate for
		  // horizontal scrolling.
		  function alignHorizontally(cm) {
		    var display = cm.display, view = display.view;
		    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
		    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
		    var gutterW = display.gutters.offsetWidth, left = comp + "px";
		    for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
		      if (cm.options.fixedGutter) {
		        if (view[i].gutter)
		          { view[i].gutter.style.left = left; }
		        if (view[i].gutterBackground)
		          { view[i].gutterBackground.style.left = left; }
		      }
		      var align = view[i].alignable;
		      if (align) { for (var j = 0; j < align.length; j++)
		        { align[j].style.left = left; } }
		    } }
		    if (cm.options.fixedGutter)
		      { display.gutters.style.left = (comp + gutterW) + "px"; }
		  }

// Used to ensure that the line number gutter is still the right
		  // size for the current document size. Returns true when an update
		  // is needed.
		  function maybeUpdateLineNumberWidth(cm) {
		    if (!cm.options.lineNumbers) { return false }
		    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
		    if (last.length != display.lineNumChars) {
		      var test = display.measure.appendChild(elt("div", [elt("div", last)],
		                                                 "CodeMirror-linenumber CodeMirror-gutter-elt"));
		      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
		      display.lineGutter.style.width = "";
		      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
		      display.lineNumWidth = display.lineNumInnerWidth + padding;
		      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
		      display.lineGutter.style.width = display.lineNumWidth + "px";
		      updateGutterSpace(cm.display);
		      return true
		    }
		    return false
		  }

// Rebuild the gutter elements, ensure the margin to the left of the
		  // code matches their width.
		  function renderGutters(display) {
		    var gutters = display.gutters, specs = display.gutterSpecs;
		    removeChildren(gutters);
		    display.lineGutter = null;
		    for (var i = 0; i < specs.length; ++i) {
		      var ref = specs[i];
		      var className = ref.className;
		      var style = ref.style;
		      var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className));
		      if (style) { gElt.style.cssText = style; }
		      if (className == "CodeMirror-linenumbers") {
		        display.lineGutter = gElt;
		        gElt.style.width = (display.lineNumWidth || 1) + "px";
		      }
		    }
		    gutters.style.display = specs.length ? "" : "none";
		    updateGutterSpace(display);
		  }

function updateGutters(cm) {
		    renderGutters(cm.display);
		    regChange(cm);
		    alignHorizontally(cm);
		  }

// The display handles the DOM integration, both for input reading
		  // and content drawing. It holds references to DOM nodes and
		  // display-related state.

function Display(place, doc, input, options) {
		    var d = this;
		    this.input = input;

// Covers bottom-right square when both scrollbars are present.
		    d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
		    d.scrollbarFiller.setAttribute("cm-not-content", "true");
		    // Covers bottom of gutter when coverGutterNextToScrollbar is on
		    // and h scrollbar is present.
		    d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
		    d.gutterFiller.setAttribute("cm-not-content", "true");
		    // Will contain the actual code, positioned to cover the viewport.
		    d.lineDiv = eltP("div", null, "CodeMirror-code");
		    // Elements are added to these to represent selection and cursors.
		    d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
		    d.cursorDiv = elt("div", null, "CodeMirror-cursors");
		    // A visibility: hidden element used to find the size of things.
		    d.measure = elt("div", null, "CodeMirror-measure");
		    // When lines outside of the viewport are measured, they are drawn in this.
		    d.lineMeasure = elt("div", null, "CodeMirror-measure");
		    // Wraps everything that needs to exist inside the vertically-padded coordinate system
		    d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
		                      null, "position: relative; outline: none");
		    var lines = eltP("div", [d.lineSpace], "CodeMirror-lines");
		    // Moved around its parent to cover visible view.
		    d.mover = elt("div", [lines], null, "position: relative");
		    // Set to the height of the document, allowing scrolling.
		    d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
		    d.sizerWidth = null;
		    // Behavior of elts with overflow: auto and padding is
		    // inconsistent across browsers. This is used to ensure the
		    // scrollable area is big enough.
		    d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
		    // Will contain the gutters, if any.
		    d.gutters = elt("div", null, "CodeMirror-gutters");
		    d.lineGutter = null;
		    // Actual scrollable element.
		    d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
		    d.scroller.setAttribute("tabIndex", "-1");
		    // The element in which the editor lives.
		    d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
		    // See #6982. FIXME remove when this has been fixed for a while in Chrome
		    if (chrome && chrome_version >= 105) { d.wrapper.style.clipPath = "inset(0px)"; }

// This attribute is respected by automatic translation systems such as Google Translate,
		    // and may also be respected by tools used by human translators.
		    d.wrapper.setAttribute('translate', 'no');

// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
		    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
		    if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; }

if (place) {
		      if (place.appendChild) { place.appendChild(d.wrapper); }
		      else { place(d.wrapper); }
		    }

// Current rendered range (may be bigger than the view window).
		    d.viewFrom = d.viewTo = doc.first;
		    d.reportedViewFrom = d.reportedViewTo = doc.first;
		    // Information about the rendered lines.
		    d.view = [];
		    d.renderedView = null;
		    // Holds info about a single rendered line when it was rendered
		    // for measurement, while not in view.
		    d.externalMeasured = null;
		    // Empty space (in pixels) above the view
		    d.viewOffset = 0;
		    d.lastWrapHeight = d.lastWrapWidth = 0;
		    d.updateLineNumbers = null;

d.nativeBarWidth = d.barHeight = d.barWidth = 0;
		    d.scrollbarsClipped = false;

// Used to only resize the line number gutter when necessary (when
		    // the amount of lines crosses a boundary that makes its width change)
		    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
		    // Set to true when a non-horizontal-scrolling line widget is
		    // added. As an optimization, line widget aligning is skipped when
		    // this is false.
		    d.alignWidgets = false;

d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;

// Tracks the maximum line length so that the horizontal scrollbar
		    // can be kept static when scrolling.
		    d.maxLine = null;
		    d.maxLineLength = 0;
		    d.maxLineChanged = false;

// Used for measuring wheel scrolling granularity
		    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;

// True when shift is held down.
		    d.shift = false;

// Used to track whether anything happened since the context menu
		    // was opened.
		    d.selForContextMenu = null;

d.activeTouch = null;

d.gutterSpecs = getGutters(options.gutters, options.lineNumbers);
		    renderGutters(d);

input.init(d);
		  }

// Since the delta values reported on mouse wheel events are
		  // unstandardized between browsers and even browser versions, and
		  // generally horribly unpredictable, this code starts by measuring
		  // the scroll effect that the first few mouse wheel events have,
		  // and, from that, detects the way it can convert deltas to pixel
		  // offsets afterwards.
		  //
		  // The reason we want to know the amount a wheel event will scroll
		  // is that it gives us a chance to update the display before the
		  // actual scrolling happens, reducing flickering.

var display = cm.display, scroll = display.scroller;
		    // Quit if there's nothing to scroll here
		    var canScrollX = scroll.scrollWidth > scroll.clientWidth;
		    var canScrollY = scroll.scrollHeight > scroll.clientHeight;
		    if (!(dx && canScrollX || dy && canScrollY)) { return }

// Webkit browsers on OS X abort momentum scrolls when the target
		    // of the scroll event is removed from the scrollable element.
		    // This hack (see related code in patchDisplay) makes sure the
		    // element is kept around.
		    if (dy && mac && webkit) {
		      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
		        for (var i = 0; i < view.length; i++) {
		          if (view[i].node == cur) {
		            cm.display.currentWheelTarget = cur;
		            break outer
		          }
		        }
		      }
		    }

// On some browsers, horizontal scrolling will cause redraws to
		    // happen before the gutter has been realigned, causing it to
		    // wriggle around in a most unseemly way. When we have an
		    // estimated pixels/delta value, we just handle horizontal
		    // scrolling entirely here. It'll be slightly off from native, but
		    // better than glitching out.
		    if (dx && !gecko && !presto && pixelsPerUnit != null) {
		      if (dy && canScrollY)
		        { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * pixelsPerUnit)); }
		      setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * pixelsPerUnit));
		      // Only prevent default scrolling if vertical scrolling is
		      // actually possible. Otherwise, it causes vertical scroll
		      // jitter on OSX trackpads when deltaX is small and deltaY
		      // is large (issue #3579)
		      if (!dy || (dy && canScrollY))
		        { e_preventDefault(e); }
		      display.wheelStartX = null; // Abort measurement, if in progress
		      return
		    }

// 'Project' the visible viewport to cover the area that is being
		    // scrolled into view (if we know enough to estimate it).
		    if (dy && pixelsPerUnit != null) {
		      var pixels = dy * pixelsPerUnit;
		      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
		      if (pixels < 0) { top = Math.max(0, top + pixels - 50); }
		      else { bot = Math.min(cm.doc.height, bot + pixels + 50); }
		      updateDisplaySimple(cm, {top: top, bottom: bot});
		    }

if (wheelSamples < 20 && e.deltaMode !== 0) {
		      if (display.wheelStartX == null) {
		        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
		        display.wheelDX = dx; display.wheelDY = dy;
		        setTimeout(function () {
		          if (display.wheelStartX == null) { return }
		          var movedX = scroll.scrollLeft - display.wheelStartX;
		          var movedY = scroll.scrollTop - display.wheelStartY;
		          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
		            (movedX && display.wheelDX && movedX / display.wheelDX);
		          display.wheelStartX = display.wheelStartY = null;
		          if (!sample) { return }
		          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
		          ++wheelSamples;
		        }, 200);
		      } else {
		        display.wheelDX += dx; display.wheelDY += dy;
		      }
		    }
		  }

// Selection objects are immutable. A new one is created every time
		  // the selection changes. A selection is one or more non-overlapping
		  // (and non-touching) ranges, sorted, and an integer that indicates
		  // which one is the primary selection (the one that's scrolled into
		  // view, that getCursor returns, etc).
		  var Selection = function(ranges, primIndex) {
		    this.ranges = ranges;
		    this.primIndex = primIndex;
		  };

Selection.prototype.primary = function () { return this.ranges[this.primIndex] };

Selection.prototype.equals = function (other) {
		    if (other == this) { return true }
		    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
		    for (var i = 0; i < this.ranges.length; i++) {
		      var here = this.ranges[i], there = other.ranges[i];
		      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
		    }
		    return true
		  };

Selection.prototype.deepCopy = function () {
		    var out = [];
		    for (var i = 0; i < this.ranges.length; i++)
		      { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); }
		    return new Selection(out, this.primIndex)
		  };

Selection.prototype.somethingSelected = function () {
		    for (var i = 0; i < this.ranges.length; i++)
		      { if (!this.ranges[i].empty()) { return true } }
		    return false
		  };

Selection.prototype.contains = function (pos, end) {
		    if (!end) { end = pos; }
		    for (var i = 0; i < this.ranges.length; i++) {
		      var range = this.ranges[i];
		      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
		        { return i }
		    }
		    return -1
		  };

var Range = function(anchor, head) {
		    this.anchor = anchor; this.head = head;
		  };

Range.prototype.from = function () { return minPos(this.anchor, this.head) };
		  Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
		  Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };

// Take an unsorted, potentially overlapping set of ranges, and
		  // build a selection out of it. 'Consumes' ranges array (modifying
		  // it).
		  function normalizeSelection(cm, ranges, primIndex) {
		    var mayTouch = cm && cm.options.selectionsMayTouch;
		    var prim = ranges[primIndex];
		    ranges.sort(function (a, b) { return cmp(a.from(), b.from()); });
		    primIndex = indexOf(ranges, prim);
		    for (var i = 1; i < ranges.length; i++) {
		      var cur = ranges[i], prev = ranges[i - 1];
		      var diff = cmp(prev.to(), cur.from());
		      if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) {
		        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
		        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
		        if (i <= primIndex) { --primIndex; }
		        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
		      }
		    }
		    return new Selection(ranges, primIndex)
		  }

function simpleSelection(anchor, head) {
		    return new Selection([new Range(anchor, head || anchor)], 0)
		  }

// Compute the position of the end of a change (its 'to' property
		  // refers to the pre-change end).
		  function changeEnd(change) {
		    if (!change.text) { return change.to }
		    return Pos(change.from.line + change.text.length - 1,
		               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
		  }

// Adjust a position to refer to the post-change position of the
		  // same text, or the end of the change if the change covers it.
		  function adjustForChange(pos, change) {
		    if (cmp(pos, change.from) < 0) { return pos }
		    if (cmp(pos, change.to) <= 0) { return changeEnd(change) }

var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
		    if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; }
		    return Pos(line, ch)
		  }

function computeSelAfterChange(doc, change) {
		    var out = [];
		    for (var i = 0; i < doc.sel.ranges.length; i++) {
		      var range = doc.sel.ranges[i];
		      out.push(new Range(adjustForChange(range.anchor, change),
		                         adjustForChange(range.head, change)));
		    }
		    return normalizeSelection(doc.cm, out, doc.sel.primIndex)
		  }

function offsetPos(pos, old, nw) {
		    if (pos.line == old.line)
		      { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
		    else
		      { return Pos(nw.line + (pos.line - old.line), pos.ch) }
		  }

// Used by replaceSelections to allow moving the selection to the
		  // start or around the replaced test. Hint may be "start" or "around".
		  function computeReplacedSel(doc, changes, hint) {
		    var out = [];
		    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
		    for (var i = 0; i < changes.length; i++) {
		      var change = changes[i];
		      var from = offsetPos(change.from, oldPrev, newPrev);
		      var to = offsetPos(changeEnd(change), oldPrev, newPrev);
		      oldPrev = change.to;
		      newPrev = to;
		      if (hint == "around") {
		        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
		        out[i] = new Range(inv ? to : from, inv ? from : to);
		      } else {
		        out[i] = new Range(from, from);
		      }
		    }
		    return new Selection(out, doc.sel.primIndex)
		  }

// Used to get the editor into a consistent state again when options change.

function loadMode(cm) {
		    cm.doc.mode = getMode(cm.options, cm.doc.modeOption);
		    resetModeState(cm);
		  }

// DOCUMENT DATA STRUCTURE

// By default, updates that start and end at the beginning of a line
		  // are treated specially, in order to make the association of line
		  // widgets and marker elements with the text behave more intuitive.
		  function isWholeLineUpdate(doc, change) {
		    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
		      (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
		  }

// Perform a change on the document data structure.
		  function updateDoc(doc, change, markedSpans, estimateHeight) {
		    function spansFor(n) {return markedSpans ? markedSpans[n] : null}
		    function update(line, text, spans) {
		      updateLine(line, text, spans, estimateHeight);
		      signalLater(line, "change", line, change);
		    }
		    function linesFor(start, end) {
		      var result = [];
		      for (var i = start; i < end; ++i)
		        { result.push(new Line(text[i], spansFor(i), estimateHeight)); }
		      return result
		    }

var from = change.from, to = change.to, text = change.text;
		    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
		    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;

// Adjust the line structure
		    if (change.full) {
		      doc.insert(0, linesFor(0, text.length));
		      doc.remove(text.length, doc.size - text.length);
		    } else if (isWholeLineUpdate(doc, change)) {
		      // This is a whole-line replace. Treated specially to make
		      // sure line objects move the way they are supposed to.
		      var added = linesFor(0, text.length - 1);
		      update(lastLine, lastLine.text, lastSpans);
		      if (nlines) { doc.remove(from.line, nlines); }
		      if (added.length) { doc.insert(from.line, added); }
		    } else if (firstLine == lastLine) {
		      if (text.length == 1) {
		        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
		      } else {
		        var added$1 = linesFor(1, text.length - 1);
		        added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
		        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
		        doc.insert(from.line + 1, added$1);
		      }
		    } else if (text.length == 1) {
		      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
		      doc.remove(from.line + 1, nlines);
		    } else {
		      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
		      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
		      var added$2 = linesFor(1, text.length - 1);
		      if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); }
		      doc.insert(from.line + 1, added$2);
		    }

signalLater(doc, "change", doc, change);
		  }

// Call f for all linked documents.
		  function linkedDocs(doc, f, sharedHistOnly) {
		    function propagate(doc, skip, sharedHist) {
		      if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
		        var rel = doc.linked[i];
		        if (rel.doc == skip) { continue }
		        var shared = sharedHist && rel.sharedHist;
		        if (sharedHistOnly && !shared) { continue }
		        f(rel.doc, shared);
		        propagate(rel.doc, doc, shared);
		      } }
		    }
		    propagate(doc, null, true);
		  }

// Attach a document to an editor.
		  function attachDoc(cm, doc) {
		    if (doc.cm) { throw new Error("This document is already in use.") }
		    cm.doc = doc;
		    doc.cm = cm;
		    estimateLineHeights(cm);
		    loadMode(cm);
		    setDirectionClass(cm);
		    cm.options.direction = doc.direction;
		    if (!cm.options.lineWrapping) { findMaxLine(cm); }
		    cm.options.mode = doc.modeOption;
		    regChange(cm);
		  }

function setDirectionClass(cm) {
		  (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl");
		  }

function directionChanged(cm) {
		    runInOp(cm, function () {
		      setDirectionClass(cm);
		      regChange(cm);
		    });
		  }

function History(prev) {
		    // Arrays of change events and selections. Doing something adds an
		    // event to done and clears undo. Undoing moves events from done
		    // to undone, redoing moves them in the other direction.
		    this.done = []; this.undone = [];
		    this.undoDepth = prev ? prev.undoDepth : Infinity;
		    // Used to track when changes can be merged into a single undo
		    // event
		    this.lastModTime = this.lastSelTime = 0;
		    this.lastOp = this.lastSelOp = null;
		    this.lastOrigin = this.lastSelOrigin = null;
		    // Used by the isClean() method
		    this.generation = this.maxGeneration = prev ? prev.maxGeneration : 1;
		  }

// Create a history change event from an updateDoc-style change
		  // object.
		  function historyChangeFromChange(doc, change) {
		    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
		    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
		    linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true);
		    return histChange
		  }

// Pop all selection events off the end of a history array. Stop at
		  // a change event.
		  function clearSelectionEvents(array) {
		    while (array.length) {
		      var last = lst(array);
		      if (last.ranges) { array.pop(); }
		      else { break }
		    }
		  }

// Find the top change event in the history. Pop off selection
		  // events that are in the way.
		  function lastChangeEvent(hist, force) {
		    if (force) {
		      clearSelectionEvents(hist.done);
		      return lst(hist.done)
		    } else if (hist.done.length && !lst(hist.done).ranges) {
		      return lst(hist.done)
		    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
		      hist.done.pop();
		      return lst(hist.done)
		    }
		  }

// Register a change in the history. Merges changes that are within
		  // a single operation, or are close together with an origin that
		  // allows merging (starting with "+") into a single event.
		  function addChangeToHistory(doc, change, selAfter, opId) {
		    var hist = doc.history;
		    hist.undone.length = 0;
		    var time = +new Date, cur;
		    var last;

if ((hist.lastOp == opId ||
		         hist.lastOrigin == change.origin && change.origin &&
		         ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) ||
		          change.origin.charAt(0) == "*")) &&
		        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
		      // Merge this change into the last event
		      last = lst(cur.changes);
		      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
		        // Optimized case for simple insertion -- don't want to add
		        // new changesets for every character typed
		        last.to = changeEnd(change);
		      } else {
		        // Add new sub-event
		        cur.changes.push(historyChangeFromChange(doc, change));
		      }
		    } else {
		      // Can not be merged, start a new event.
		      var before = lst(hist.done);
		      if (!before || !before.ranges)
		        { pushSelectionToHistory(doc.sel, hist.done); }
		      cur = {changes: [historyChangeFromChange(doc, change)],
		             generation: hist.generation};
		      hist.done.push(cur);
		      while (hist.done.length > hist.undoDepth) {
		        hist.done.shift();
		        if (!hist.done[0].ranges) { hist.done.shift(); }
		      }
		    }
		    hist.done.push(selAfter);
		    hist.generation = ++hist.maxGeneration;
		    hist.lastModTime = hist.lastSelTime = time;
		    hist.lastOp = hist.lastSelOp = opId;
		    hist.lastOrigin = hist.lastSelOrigin = change.origin;

if (!last) { signal(doc, "historyAdded"); }
		  }

function selectionEventCanBeMerged(doc, origin, prev, sel) {
		    var ch = origin.charAt(0);
		    return ch == "*" ||
		      ch == "+" &&
		      prev.ranges.length == sel.ranges.length &&
		      prev.somethingSelected() == sel.somethingSelected() &&
		      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
		  }

// Called whenever the selection changes, sets the new selection as
		  // the pending selection in the history, and pushes the old pending
		  // selection into the 'done' array when it was significantly
		  // different (in number of selected ranges, emptiness, or time).
		  function addSelectionToHistory(doc, sel, opId, options) {
		    var hist = doc.history, origin = options && options.origin;

// A new event is started when the previous origin does not match
		    // the current, or the origins don't allow matching. Origins
		    // starting with * are always merged, those starting with + are
		    // merged when similar and close together in time.
		    if (opId == hist.lastSelOp ||
		        (origin && hist.lastSelOrigin == origin &&
		         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
		          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
		      { hist.done[hist.done.length - 1] = sel; }
		    else
		      { pushSelectionToHistory(sel, hist.done); }

hist.lastSelTime = +new Date;
		    hist.lastSelOrigin = origin;
		    hist.lastSelOp = opId;
		    if (options && options.clearRedo !== false)
		      { clearSelectionEvents(hist.undone); }
		  }

function pushSelectionToHistory(sel, dest) {
		    var top = lst(dest);
		    if (!(top && top.ranges && top.equals(sel)))
		      { dest.push(sel); }
		  }

// Used to store marked span information in the history.
		  function attachLocalSpans(doc, change, from, to) {
		    var existing = change["spans_" + doc.id], n = 0;
		    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
		      if (line.markedSpans)
		        { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; }
		      ++n;
		    });
		  }

// When un/re-doing restores text containing marked spans, those
		  // that have been explicitly cleared should not be restored.
		  function removeClearedSpans(spans) {
		    if (!spans) { return null }
		    var out;
		    for (var i = 0; i < spans.length; ++i) {
		      if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } }
		      else if (out) { out.push(spans[i]); }
		    }
		    return !out ? spans : out.length ? out : null
		  }

// Retrieve and filter the old marked spans stored in a change event.
		  function getOldSpans(doc, change) {
		    var found = change["spans_" + doc.id];
		    if (!found) { return null }
		    var nw = [];
		    for (var i = 0; i < change.text.length; ++i)
		      { nw.push(removeClearedSpans(found[i])); }
		    return nw
		  }

// Used for un/re-doing changes from the history. Combines the
		  // result of computing the existing spans with the set of spans that
		  // existed in the history (so that deleting around a span and then
		  // undoing brings back the span).
		  function mergeOldSpans(doc, change) {
		    var old = getOldSpans(doc, change);
		    var stretched = stretchSpansOverChange(doc, change);
		    if (!old) { return stretched }
		    if (!stretched) { return old }

for (var i = 0; i < old.length; ++i) {
		      var oldCur = old[i], stretchCur = stretched[i];
		      if (oldCur && stretchCur) {
		        spans: for (var j = 0; j < stretchCur.length; ++j) {
		          var span = stretchCur[j];
		          for (var k = 0; k < oldCur.length; ++k)
		            { if (oldCur[k].marker == span.marker) { continue spans } }
		          oldCur.push(span);
		        }
		      } else if (stretchCur) {
		        old[i] = stretchCur;
		      }
		    }
		    return old
		  }

// Used both to provide a JSON-safe object in .getHistory, and, when
		  // detaching a document, to split the history in two
		  function copyHistoryArray(events, newGroup, instantiateSel) {
		    var copy = [];
		    for (var i = 0; i < events.length; ++i) {
		      var event = events[i];
		      if (event.ranges) {
		        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
		        continue
		      }
		      var changes = event.changes, newChanges = [];
		      copy.push({changes: newChanges});
		      for (var j = 0; j < changes.length; ++j) {
		        var change = changes[j], m = (void 0);
		        newChanges.push({from: change.from, to: change.to, text: change.text});
		        if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
		          if (indexOf(newGroup, Number(m[1])) > -1) {
		            lst(newChanges)[prop] = change[prop];
		            delete change[prop];
		          }
		        } } }
		      }
		    }
		    return copy
		  }

// The 'scroll' parameter given to many of these indicated whether
		  // the new cursor position should be scrolled into view after
		  // modifying the selection.

// If shift is held or the extend flag is set, extends a range to
		  // include a given position (and optionally a second position).
		  // Otherwise, simply returns the range between the given positions.
		  // Used for cursor motion and such.
		  function extendRange(range, head, other, extend) {
		    if (extend) {
		      var anchor = range.anchor;
		      if (other) {
		        var posBefore = cmp(head, anchor) < 0;
		        if (posBefore != (cmp(other, anchor) < 0)) {
		          anchor = head;
		          head = other;
		        } else if (posBefore != (cmp(head, other) < 0)) {
		          head = other;
		        }
		      }
		      return new Range(anchor, head)
		    } else {
		      return new Range(other || head, head)
		    }
		  }

// Extend the primary selection range, discard the rest.
		  function extendSelection(doc, head, other, options, extend) {
		    if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); }
		    setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options);
		  }

// Extend all selections (pos is an array of selections with length
		  // equal the number of selections)
		  function extendSelections(doc, heads, options) {
		    var out = [];
		    var extend = doc.cm && (doc.cm.display.shift || doc.extend);
		    for (var i = 0; i < doc.sel.ranges.length; i++)
		      { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); }
		    var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex);
		    setSelection(doc, newSel, options);
		  }

// Updates a single range in the selection.
		  function replaceOneSelection(doc, i, range, options) {
		    var ranges = doc.sel.ranges.slice(0);
		    ranges[i] = range;
		    setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options);
		  }

// Reset the selection to a single range.
		  function setSimpleSelection(doc, anchor, head, options) {
		    setSelection(doc, simpleSelection(anchor, head), options);
		  }

// Give beforeSelectionChange handlers a change to influence a
		  // selection update.
		  function filterSelectionChange(doc, sel, options) {
		    var obj = {
		      ranges: sel.ranges,
		      update: function(ranges) {
		        this.ranges = [];
		        for (var i = 0; i < ranges.length; i++)
		          { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
		                                     clipPos(doc, ranges[i].head)); }
		      },
		      origin: options && options.origin
		    };
		    signal(doc, "beforeSelectionChange", doc, obj);
		    if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); }
		    if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) }
		    else { return sel }
		  }

// Set a new selection.
		  function setSelection(doc, sel, options) {
		    setSelectionNoUndo(doc, sel, options);
		    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
		  }

function setSelectionNoUndo(doc, sel, options) {
		    if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
		      { sel = filterSelectionChange(doc, sel, options); }

var bias = options && options.bias ||
		      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
		    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));

if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor")
		      { ensureCursorVisible(doc.cm); }
		  }

function setSelectionInner(doc, sel) {
		    if (sel.equals(doc.sel)) { return }

doc.sel = sel;

if (doc.cm) {
		      doc.cm.curOp.updateInput = 1;
		      doc.cm.curOp.selectionChanged = true;
		      signalCursorActivity(doc.cm);
		    }
		    signalLater(doc, "cursorActivity", doc);
		  }

// Verify that the selection does not partially select any atomic
		  // marked ranges.
		  function reCheckSelection(doc) {
		    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false));
		  }

// Return a selection that does not partially select any atomic
		  // ranges.
		  function skipAtomicInSelection(doc, sel, bias, mayClear) {
		    var out;
		    for (var i = 0; i < sel.ranges.length; i++) {
		      var range = sel.ranges[i];
		      var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
		      var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
		      var newHead = range.head == range.anchor ? newAnchor : skipAtomic(doc, range.head, old && old.head, bias, mayClear);
		      if (out || newAnchor != range.anchor || newHead != range.head) {
		        if (!out) { out = sel.ranges.slice(0, i); }
		        out[i] = new Range(newAnchor, newHead);
		      }
		    }
		    return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel
		  }

function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
		    var line = getLine(doc, pos.line);
		    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
		      var sp = line.markedSpans[i], m = sp.marker;

// Determine if we should prevent the cursor being placed to the left/right of an atomic marker
		      // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it
		      // is with selectLeft/Right
		      var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft;
		      var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight;

if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
		          (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
		        if (mayClear) {
		          signal(m, "beforeCursorEnter");
		          if (m.explicitlyCleared) {
		            if (!line.markedSpans) { break }
		            else {--i; continue}
		          }
		        }
		        if (!m.atomic) { continue }

if (oldPos) {
		          var near = m.find(dir < 0 ? 1 : -1), diff = (void 0);
		          if (dir < 0 ? preventCursorRight : preventCursorLeft)
		            { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); }
		          if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
		            { return skipAtomicInner(doc, near, pos, dir, mayClear) }
		        }

var far = m.find(dir < 0 ? -1 : 1);
		        if (dir < 0 ? preventCursorLeft : preventCursorRight)
		          { far = movePos(doc, far, dir, far.line == pos.line ? line : null); }
		        return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
		      }
		    } }
		    return pos
		  }

// Ensure a given position is not inside an atomic range.
		  function skipAtomic(doc, pos, oldPos, bias, mayClear) {
		    var dir = bias || 1;
		    var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
		        (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
		        skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
		        (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
		    if (!found) {
		      doc.cantEdit = true;
		      return Pos(doc.first, 0)
		    }
		    return found
		  }

function movePos(doc, pos, dir, line) {
		    if (dir < 0 && pos.ch == 0) {
		      if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
		      else { return null }
		    } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
		      if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
		      else { return null }
		    } else {
		      return new Pos(pos.line, pos.ch + dir)
		    }
		  }

function selectAll(cm) {
		    cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);
		  }

// UPDATING

// Allow "beforeChange" event handlers to influence a change
		  function filterChange(doc, change, update) {
		    var obj = {
		      canceled: false,
		      from: change.from,
		      to: change.to,
		      text: change.text,
		      origin: change.origin,
		      cancel: function () { return obj.canceled = true; }
		    };
		    if (update) { obj.update = function (from, to, text, origin) {
		      if (from) { obj.from = clipPos(doc, from); }
		      if (to) { obj.to = clipPos(doc, to); }
		      if (text) { obj.text = text; }
		      if (origin !== undefined) { obj.origin = origin; }
		    }; }
		    signal(doc, "beforeChange", doc, obj);
		    if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); }

if (obj.canceled) {
		      if (doc.cm) { doc.cm.curOp.updateInput = 2; }
		      return null
		    }
		    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
		  }

// Apply a change to a document, and add it to the document's
		  // history, and propagating it to all linked documents.
		  function makeChange(doc, change, ignoreReadOnly) {
		    if (doc.cm) {
		      if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
		      if (doc.cm.state.suppressEdits) { return }
		    }

if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
		      change = filterChange(doc, change, true);
		      if (!change) { return }
		    }

// Possibly split or suppress the update based on the presence
		    // of read-only spans in its range.
		    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
		    if (split) {
		      for (var i = split.length - 1; i >= 0; --i)
		        { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); }
		    } else {
		      makeChangeInner(doc, change);
		    }
		  }

function makeChangeInner(doc, change) {
		    if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
		    var selAfter = computeSelAfterChange(doc, change);
		    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);

makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
		    var rebased = [];

linkedDocs(doc, function (doc, sharedHist) {
		      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
		        rebaseHist(doc.history, change);
		        rebased.push(doc.history);
		      }
		      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
		    });
		  }

// Revert a change stored in a document's history.
		  function makeChangeFromHistory(doc, type, allowSelectionOnly) {
		    var suppress = doc.cm && doc.cm.state.suppressEdits;
		    if (suppress && !allowSelectionOnly) { return }

var hist = doc.history, event, selAfter = doc.sel;
		    var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;

// Verify that there is a useable event (so that ctrl-z won't
		    // needlessly clear selection events)
		    var i = 0;
		    for (; i < source.length; i++) {
		      event = source[i];
		      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
		        { break }
		    }
		    if (i == source.length) { return }
		    hist.lastOrigin = hist.lastSelOrigin = null;

for (;;) {
		      event = source.pop();
		      if (event.ranges) {
		        pushSelectionToHistory(event, dest);
		        if (allowSelectionOnly && !event.equals(doc.sel)) {
		          setSelection(doc, event, {clearRedo: false});
		          return
		        }
		        selAfter = event;
		      } else if (suppress) {
		        source.push(event);
		        return
		      } else { break }
		    }

// Build up a reverse change object to add to the opposite history
		    // stack (redo when undoing, and vice versa).
		    var antiChanges = [];
		    pushSelectionToHistory(selAfter, dest);
		    dest.push({changes: antiChanges, generation: hist.generation});
		    hist.generation = event.generation || ++hist.maxGeneration;

var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");

var loop = function ( i ) {
		      var change = event.changes[i];
		      change.origin = type;
		      if (filter && !filterChange(doc, change, false)) {
		        source.length = 0;
		        return {}
		      }

antiChanges.push(historyChangeFromChange(doc, change));

var after = i ? computeSelAfterChange(doc, change) : lst(source);
		      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
		      if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); }
		      var rebased = [];

// Propagate to the linked documents
		      linkedDocs(doc, function (doc, sharedHist) {
		        if (!sharedHist && indexOf(rebased, doc.history) == -1) {
		          rebaseHist(doc.history, change);
		          rebased.push(doc.history);
		        }
		        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
		      });
		    };

for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
		      var returned = loop( i$1 );

if ( returned ) return returned.v;
		    }
		  }

// Sub-views need their line numbers shifted when text is added
		  // above or below them in the parent document.
		  function shiftDoc(doc, distance) {
		    if (distance == 0) { return }
		    doc.first += distance;
		    doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
		      Pos(range.anchor.line + distance, range.anchor.ch),
		      Pos(range.head.line + distance, range.head.ch)
		    ); }), doc.sel.primIndex);
		    if (doc.cm) {
		      regChange(doc.cm, doc.first, doc.first - distance, distance);
		      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
		        { regLineChange(doc.cm, l, "gutter"); }
		    }
		  }

// More lower-level change function, handling only a single document
		  // (not linked ones).
		  function makeChangeSingleDoc(doc, change, selAfter, spans) {
		    if (doc.cm && !doc.cm.curOp)
		      { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }

if (change.to.line < doc.first) {
		      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
		      return
		    }
		    if (change.from.line > doc.lastLine()) { return }

// Clip the change to the size of this doc
		    if (change.from.line < doc.first) {
		      var shift = change.text.length - 1 - (doc.first - change.from.line);
		      shiftDoc(doc, shift);
		      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
		                text: [lst(change.text)], origin: change.origin};
		    }
		    var last = doc.lastLine();
		    if (change.to.line > last) {
		      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
		                text: [change.text[0]], origin: change.origin};
		    }

change.removed = getBetween(doc, change.from, change.to);

if (!selAfter) { selAfter = computeSelAfterChange(doc, change); }
		    if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); }
		    else { updateDoc(doc, change, spans); }
		    setSelectionNoUndo(doc, selAfter, sel_dontScroll);

if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0)))
		      { doc.cantEdit = false; }
		  }

// Handle the interaction of a change to a document with the editor
		  // that this document is part of.
		  function makeChangeSingleDocInEditor(cm, change, spans) {
		    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;

if (doc.sel.contains(change.from, change.to) > -1)
		      { signalCursorActivity(cm); }

updateDoc(doc, change, spans, estimateHeight(cm));

if (!cm.options.lineWrapping) {
		      doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
		        var len = lineLength(line);
		        if (len > display.maxLineLength) {
		          display.maxLine = line;
		          display.maxLineLength = len;
		          display.maxLineChanged = true;
		          recomputeMaxLength = false;
		        }
		      });
		      if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; }
		    }

retreatFrontier(doc, from.line);
		    startWorker(cm, 400);

function replaceRange(doc, code, from, to, origin) {
		    var assign;

if (!to) { to = from; }
		    if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); }
		    if (typeof code == "string") { code = doc.splitLines(code); }
		    makeChange(doc, {from: from, to: to, text: code, origin: origin});
		  }

// Rebasing/resetting history to deal with externally-sourced changes

function rebaseHistSelSingle(pos, from, to, diff) {
		    if (to < pos.line) {
		      pos.line += diff;
		    } else if (from < pos.line) {
		      pos.line = from;
		      pos.ch = 0;
		    }
		  }

// Tries to rebase an array of history events given a change in the
		  // document. If the change touches the same lines as the event, the
		  // event, and everything 'behind' it, is discarded. If the change is
		  // before the event, the event's positions are updated. Uses a
		  // copy-on-write scheme for the positions, to avoid having to
		  // reallocate them all on every rebase, but also avoid problems with
		  // shared position objects being unsafely updated.
		  function rebaseHistArray(array, from, to, diff) {
		    for (var i = 0; i < array.length; ++i) {
		      var sub = array[i], ok = true;
		      if (sub.ranges) {
		        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
		        for (var j = 0; j < sub.ranges.length; j++) {
		          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
		          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
		        }
		        continue
		      }
		      for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
		        var cur = sub.changes[j$1];
		        if (to < cur.from.line) {
		          cur.from = Pos(cur.from.line + diff, cur.from.ch);
		          cur.to = Pos(cur.to.line + diff, cur.to.ch);
		        } else if (from <= cur.to.line) {
		          ok = false;
		          break
		        }
		      }
		      if (!ok) {
		        array.splice(0, i + 1);
		        i = 0;
		      }
		    }
		  }

function rebaseHist(hist, change) {
		    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
		    rebaseHistArray(hist.done, from, to, diff);
		    rebaseHistArray(hist.undone, from, to, diff);
		  }

// Utility for applying a change to a line by handle or number,
		  // returning the number and optionally registering the line as
		  // changed.
		  function changeLine(doc, handle, changeType, op) {
		    var no = handle, line = handle;
		    if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); }
		    else { no = lineNo(handle); }
		    if (no == null) { return null }
		    if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); }
		    return line
		  }

// The document is represented as a BTree consisting of leaves, with
		  // chunk of lines in them, and branches, with up to ten leaves or
		  // other branch nodes below them. The top node is always a branch
		  // node, and is the document object itself (meaning it has
		  // additional methods and properties).
		  //
		  // All nodes have parent links. The tree is used both to go from
		  // line numbers to line objects, and to go from objects to numbers.
		  // It also indexes by height, and is used to convert between height
		  // and line object, and to find the total height of the document.
		  //
		  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html

function LeafChunk(lines) {
		    this.lines = lines;
		    this.parent = null;
		    var height = 0;
		    for (var i = 0; i < lines.length; ++i) {
		      lines[i].parent = this;
		      height += lines[i].height;
		    }
		    this.height = height;
		  }

LeafChunk.prototype = {
		    chunkSize: function() { return this.lines.length },

// Remove the n lines at offset 'at'.
		    removeInner: function(at, n) {
		      for (var i = at, e = at + n; i < e; ++i) {
		        var line = this.lines[i];
		        this.height -= line.height;
		        cleanUpLine(line);
		        signalLater(line, "delete");
		      }
		      this.lines.splice(at, n);
		    },

// Helper used to collapse a small branch into a single leaf.
		    collapse: function(lines) {
		      lines.push.apply(lines, this.lines);
		    },

// Insert the given array of lines at offset 'at', count them as
		    // having the given height.
		    insertInner: function(at, lines, height) {
		      this.height += height;
		      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
		      for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; }
		    },

// Used to iterate over a part of the tree.
		    iterN: function(at, n, op) {
		      for (var e = at + n; at < e; ++at)
		        { if (op(this.lines[at])) { return true } }
		    }
		  };

function BranchChunk(children) {
		    this.children = children;
		    var size = 0, height = 0;
		    for (var i = 0; i < children.length; ++i) {
		      var ch = children[i];
		      size += ch.chunkSize(); height += ch.height;
		      ch.parent = this;
		    }
		    this.size = size;
		    this.height = height;
		    this.parent = null;
		  }

BranchChunk.prototype = {
		    chunkSize: function() { return this.size },

removeInner: function(at, n) {
		      this.size -= n;
		      for (var i = 0; i < this.children.length; ++i) {
		        var child = this.children[i], sz = child.chunkSize();
		        if (at < sz) {
		          var rm = Math.min(n, sz - at), oldHeight = child.height;
		          child.removeInner(at, rm);
		          this.height -= oldHeight - child.height;
		          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
		          if ((n -= rm) == 0) { break }
		          at = 0;
		        } else { at -= sz; }
		      }
		      // If the result is smaller than 25 lines, ensure that it is a
		      // single leaf node.
		      if (this.size - n < 25 &&
		          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
		        var lines = [];
		        this.collapse(lines);
		        this.children = [new LeafChunk(lines)];
		        this.children[0].parent = this;
		      }
		    },

collapse: function(lines) {
		      for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); }
		    },

insertInner: function(at, lines, height) {
		      this.size += lines.length;
		      this.height += height;
		      for (var i = 0; i < this.children.length; ++i) {
		        var child = this.children[i], sz = child.chunkSize();
		        if (at <= sz) {
		          child.insertInner(at, lines, height);
		          if (child.lines && child.lines.length > 50) {
		            // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
		            // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
		            var remaining = child.lines.length % 25 + 25;
		            for (var pos = remaining; pos < child.lines.length;) {
		              var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
		              child.height -= leaf.height;
		              this.children.splice(++i, 0, leaf);
		              leaf.parent = this;
		            }
		            child.lines = child.lines.slice(0, remaining);
		            this.maybeSpill();
		          }
		          break
		        }
		        at -= sz;
		      }
		    },

// When a node has grown, check whether it should be split.
		    maybeSpill: function() {
		      if (this.children.length <= 10) { return }
		      var me = this;
		      do {
		        var spilled = me.children.splice(me.children.length - 5, 5);
		        var sibling = new BranchChunk(spilled);
		        if (!me.parent) { // Become the parent node
		          var copy = new BranchChunk(me.children);
		          copy.parent = me;
		          me.children = [copy, sibling];
		          me = copy;
		       } else {
		          me.size -= sibling.size;
		          me.height -= sibling.height;
		          var myIndex = indexOf(me.parent.children, me);
		          me.parent.children.splice(myIndex + 1, 0, sibling);
		        }
		        sibling.parent = me.parent;
		      } while (me.children.length > 10)
		      me.parent.maybeSpill();
		    },

iterN: function(at, n, op) {
		      for (var i = 0; i < this.children.length; ++i) {
		        var child = this.children[i], sz = child.chunkSize();
		        if (at < sz) {
		          var used = Math.min(n, sz - at);
		          if (child.iterN(at, used, op)) { return true }
		          if ((n -= used) == 0) { break }
		          at = 0;
		        } else { at -= sz; }
		      }
		    }
		  };

// Line widgets are block elements displayed above or below a line.

LineWidget.prototype.clear = function () {
		    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
		    if (no == null || !ws) { return }
		    for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } }
		    if (!ws.length) { line.widgets = null; }
		    var height = widgetHeight(this);
		    updateLineHeight(line, Math.max(0, line.height - height));
		    if (cm) {
		      runInOp(cm, function () {
		        adjustScrollWhenAboveVisible(cm, line, -height);
		        regLineChange(cm, no, "widget");
		      });
		      signalLater(cm, "lineWidgetCleared", cm, this, no);
		    }
		  };

LineWidget.prototype.changed = function () {
		      var this$1$1 = this;

function adjustScrollWhenAboveVisible(cm, line, diff) {
		    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
		      { addToScrollTop(cm, diff); }
		  }

// TEXTMARKERS

// Created with markText and setBookmark methods. A TextMarker is a
		  // handle that can be used to clear or find a marked position in the
		  // document. Line objects hold arrays (markedSpans) containing
		  // {from, to, marker} object pointing to such marker objects, and
		  // indicating that such a marker is present on that line. Multiple
		  // lines may point to the same marker when it spans across lines.
		  // The spans will have null for their from/to properties when the
		  // marker continues beyond the start/end of the line. Markers have
		  // links back to the lines they currently touch.

// Collapsed markers have unique ids, in order to be able to order
		  // them, which is needed for uniquely determining an outer marker
		  // when they overlap (they may nest, but not partially overlap).
		  var nextMarkerId = 0;

var TextMarker = function(doc, type) {
		    this.lines = [];
		    this.type = type;
		    this.doc = doc;
		    this.id = ++nextMarkerId;
		  };

// Clear the marker.
		  TextMarker.prototype.clear = function () {
		    if (this.explicitlyCleared) { return }
		    var cm = this.doc.cm, withOp = cm && !cm.curOp;
		    if (withOp) { startOperation(cm); }
		    if (hasHandler(this, "clear")) {
		      var found = this.find();
		      if (found) { signalLater(this, "clear", found.from, found.to); }
		    }
		    var min = null, max = null;
		    for (var i = 0; i < this.lines.length; ++i) {
		      var line = this.lines[i];
		      var span = getMarkedSpanFor(line.markedSpans, this);
		      if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); }
		      else if (cm) {
		        if (span.to != null) { max = lineNo(line); }
		        if (span.from != null) { min = lineNo(line); }
		      }
		      line.markedSpans = removeMarkedSpan(line.markedSpans, span);
		      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
		        { updateLineHeight(line, textHeight(cm.display)); }
		    }
		    if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
		      var visual = visualLine(this.lines[i$1]), len = lineLength(visual);
		      if (len > cm.display.maxLineLength) {
		        cm.display.maxLine = visual;
		        cm.display.maxLineLength = len;
		        cm.display.maxLineChanged = true;
		      }
		    } }

if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); }
		    this.lines.length = 0;
		    this.explicitlyCleared = true;
		    if (this.atomic && this.doc.cantEdit) {
		      this.doc.cantEdit = false;
		      if (cm) { reCheckSelection(cm.doc); }
		    }
		    if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); }
		    if (withOp) { endOperation(cm); }
		    if (this.parent) { this.parent.clear(); }
		  };

// Find the position of the marker in the document. Returns a {from,
		  // to} object by default. Side can be passed to get a specific side
		  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
		  // Pos objects returned contain a line object, rather than a line
		  // number (used to prevent looking up the same line twice).
		  TextMarker.prototype.find = function (side, lineObj) {
		    if (side == null && this.type == "bookmark") { side = 1; }
		    var from, to;
		    for (var i = 0; i < this.lines.length; ++i) {
		      var line = this.lines[i];
		      var span = getMarkedSpanFor(line.markedSpans, this);
		      if (span.from != null) {
		        from = Pos(lineObj ? line : lineNo(line), span.from);
		        if (side == -1) { return from }
		      }
		      if (span.to != null) {
		        to = Pos(lineObj ? line : lineNo(line), span.to);
		        if (side == 1) { return to }
		      }
		    }
		    return from && {from: from, to: to}
		  };

// Signals that the marker's widget changed, and surrounding layout
		  // should be recomputed.
		  TextMarker.prototype.changed = function () {
		      var this$1$1 = this;

TextMarker.prototype.attachLine = function (line) {
		    if (!this.lines.length && this.doc.cm) {
		      var op = this.doc.cm.curOp;
		      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
		        { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); }
		    }
		    this.lines.push(line);
		  };

TextMarker.prototype.detachLine = function (line) {
		    this.lines.splice(indexOf(this.lines, line), 1);
		    if (!this.lines.length && this.doc.cm) {
		      var op = this.doc.cm.curOp
		      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
		    }
		  };
		  eventMixin(TextMarker);

// Create a marker, wire it up to the right lines, and
		  function markText(doc, from, to, options, type) {
		    // Shared markers (across linked documents) are handled separately
		    // (markTextShared will call out to this again, once per
		    // document).
		    if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
		    // Ensure we are in an operation.
		    if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }

if (marker.addToHistory)
		      { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); }

if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); }

if (marker.readOnly) {
		      seeReadOnlySpans();
		      if (doc.history.done.length || doc.history.undone.length)
		        { doc.clearHistory(); }
		    }
		    if (marker.collapsed) {
		      marker.id = ++nextMarkerId;
		      marker.atomic = true;
		    }
		    if (cm) {
		      // Sync editor state
		      if (updateMaxLine) { cm.curOp.updateMaxLine = true; }
		      if (marker.collapsed)
		        { regChange(cm, from.line, to.line + 1); }
		      else if (marker.className || marker.startStyle || marker.endStyle || marker.css ||
		               marker.attributes || marker.title)
		        { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } }
		      if (marker.atomic) { reCheckSelection(cm.doc); }
		      signalLater(cm, "markerAdded", cm, marker);
		    }
		    return marker
		  }

// SHARED TEXTMARKERS

// A shared marker spans multiple linked documents. It is
		  // implemented as a meta-marker-object controlling multiple normal
		  // markers.
		  var SharedTextMarker = function(markers, primary) {
		    this.markers = markers;
		    this.primary = primary;
		    for (var i = 0; i < markers.length; ++i)
		      { markers[i].parent = this; }
		  };

SharedTextMarker.prototype.clear = function () {
		    if (this.explicitlyCleared) { return }
		    this.explicitlyCleared = true;
		    for (var i = 0; i < this.markers.length; ++i)
		      { this.markers[i].clear(); }
		    signalLater(this, "clear");
		  };

SharedTextMarker.prototype.find = function (side, lineObj) {
		    return this.primary.find(side, lineObj)
		  };
		  eventMixin(SharedTextMarker);

function findSharedMarkers(doc) {
		    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
		  }

for (var i = 0; i < markers.length; i++) loop( i );
		  }

var nextDocId = 0;
		  var Doc = function(text, mode, firstLine, lineSep, direction) {
		    if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
		    if (firstLine == null) { firstLine = 0; }

BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
		    this.first = firstLine;
		    this.scrollTop = this.scrollLeft = 0;
		    this.cantEdit = false;
		    this.cleanGeneration = 1;
		    this.modeFrontier = this.highlightFrontier = firstLine;
		    var start = Pos(firstLine, 0);
		    this.sel = simpleSelection(start);
		    this.history = new History(null);
		    this.id = ++nextDocId;
		    this.modeOption = mode;
		    this.lineSep = lineSep;
		    this.direction = (direction == "rtl") ? "rtl" : "ltr";
		    this.extend = false;

if (typeof text == "string") { text = this.splitLines(text); }
		    updateDoc(this, {from: start, to: start, text: text});
		    setSelection(this, simpleSelection(start), sel_dontScroll);
		  };

Doc.prototype = createObj(BranchChunk.prototype, {
		    constructor: Doc,
		    // Iterate over the document. Supports two forms -- with only one
		    // argument, it calls that for each line in the document. With
		    // three, it iterates over the range given by the first two (with
		    // the second being non-inclusive).
		    iter: function(from, to, op) {
		      if (op) { this.iterN(from - this.first, to - from, op); }
		      else { this.iterN(this.first, this.first + this.size, from); }
		    },

// Non-public interface for adding and removing lines.
		    insert: function(at, lines) {
		      var height = 0;
		      for (var i = 0; i < lines.length; ++i) { height += lines[i].height; }
		      this.insertInner(at - this.first, lines, height);
		    },
		    remove: function(at, n) { this.removeInner(at - this.first, n); },

// From here, the methods are part of the public interface. Most
		    // are also available from CodeMirror (editor) instances.

getValue: function(lineSep) {
		      var lines = getLines(this, this.first, this.first + this.size);
		      if (lineSep === false) { return lines }
		      return lines.join(lineSep || this.lineSeparator())
		    },
		    setValue: docMethodOp(function(code) {
		      var top = Pos(this.first, 0), last = this.first + this.size - 1;
		      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
		                        text: this.splitLines(code), origin: "setValue", full: true}, true);
		      if (this.cm) { scrollToCoords(this.cm, 0, 0); }
		      setSelection(this, simpleSelection(top), sel_dontScroll);
		    }),
		    replaceRange: function(code, from, to, origin) {
		      from = clipPos(this, from);
		      to = to ? clipPos(this, to) : from;
		      replaceRange(this, code, from, to, origin);
		    },
		    getRange: function(from, to, lineSep) {
		      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
		      if (lineSep === false) { return lines }
		      if (lineSep === '') { return lines.join('') }
		      return lines.join(lineSep || this.lineSeparator())
		    },

getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},

getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
		    getLineNumber: function(line) {return lineNo(line)},

getLineHandleVisualStart: function(line) {
		      if (typeof line == "number") { line = getLine(this, line); }
		      return visualLine(line)
		    },

lineCount: function() {return this.size},
		    firstLine: function() {return this.first},
		    lastLine: function() {return this.first + this.size - 1},

clipPos: function(pos) {return clipPos(this, pos)},

getCursor: function(start) {
		      var range = this.sel.primary(), pos;
		      if (start == null || start == "head") { pos = range.head; }
		      else if (start == "anchor") { pos = range.anchor; }
		      else if (start == "end" || start == "to" || start === false) { pos = range.to(); }
		      else { pos = range.from(); }
		      return pos
		    },
		    listSelections: function() { return this.sel.ranges },
		    somethingSelected: function() {return this.sel.somethingSelected()},

setCursor: docMethodOp(function(line, ch, options) {
		      setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
		    }),
		    setSelection: docMethodOp(function(anchor, head, options) {
		      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
		    }),
		    extendSelection: docMethodOp(function(head, other, options) {
		      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
		    }),
		    extendSelections: docMethodOp(function(heads, options) {
		      extendSelections(this, clipPosArray(this, heads), options);
		    }),
		    extendSelectionsBy: docMethodOp(function(f, options) {
		      var heads = map(this.sel.ranges, f);
		      extendSelections(this, clipPosArray(this, heads), options);
		    }),
		    setSelections: docMethodOp(function(ranges, primary, options) {
		      if (!ranges.length) { return }
		      var out = [];
		      for (var i = 0; i < ranges.length; i++)
		        { out[i] = new Range(clipPos(this, ranges[i].anchor),
		                           clipPos(this, ranges[i].head || ranges[i].anchor)); }
		      if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); }
		      setSelection(this, normalizeSelection(this.cm, out, primary), options);
		    }),
		    addSelection: docMethodOp(function(anchor, head, options) {
		      var ranges = this.sel.ranges.slice(0);
		      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
		      setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options);
		    }),

getSelection: function(lineSep) {
		      var ranges = this.sel.ranges, lines;
		      for (var i = 0; i < ranges.length; i++) {
		        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
		        lines = lines ? lines.concat(sel) : sel;
		      }
		      if (lineSep === false) { return lines }
		      else { return lines.join(lineSep || this.lineSeparator()) }
		    },
		    getSelections: function(lineSep) {
		      var parts = [], ranges = this.sel.ranges;
		      for (var i = 0; i < ranges.length; i++) {
		        var sel = getBetween(this, ranges[i].from(), ranges[i].to());
		        if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); }
		        parts[i] = sel;
		      }
		      return parts
		    },
		    replaceSelection: function(code, collapse, origin) {
		      var dup = [];
		      for (var i = 0; i < this.sel.ranges.length; i++)
		        { dup[i] = code; }
		      this.replaceSelections(dup, collapse, origin || "+input");
		    },
		    replaceSelections: docMethodOp(function(code, collapse, origin) {
		      var changes = [], sel = this.sel;
		      for (var i = 0; i < sel.ranges.length; i++) {
		        var range = sel.ranges[i];
		        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
		      }
		      var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
		      for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
		        { makeChange(this, changes[i$1]); }
		      if (newSel) { setSelectionReplaceHistory(this, newSel); }
		      else if (this.cm) { ensureCursorVisible(this.cm); }
		    }),
		    undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
		    redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
		    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
		    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),

setExtending: function(val) {this.extend = val;},
		    getExtending: function() {return this.extend},

historySize: function() {
		      var hist = this.history, done = 0, undone = 0;
		      for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } }
		      for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } }
		      return {undo: done, redo: undone}
		    },
		    clearHistory: function() {
		      var this$1$1 = this;

this.history = new History(this.history);
		      linkedDocs(this, function (doc) { return doc.history = this$1$1.history; }, true);
		    },

markClean: function() {
		      this.cleanGeneration = this.changeGeneration(true);
		    },
		    changeGeneration: function(forceSplit) {
		      if (forceSplit)
		        { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; }
		      return this.history.generation
		    },
		    isClean: function (gen) {
		      return this.history.generation == (gen || this.cleanGeneration)
		    },

getHistory: function() {
		      return {done: copyHistoryArray(this.history.done),
		              undone: copyHistoryArray(this.history.undone)}
		    },
		    setHistory: function(histData) {
		      var hist = this.history = new History(this.history);
		      hist.done = copyHistoryArray(histData.done.slice(0), null, true);
		      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
		    },

setGutterMarker: docMethodOp(function(line, gutterID, value) {
		      return changeLine(this, line, "gutter", function (line) {
		        var markers = line.gutterMarkers || (line.gutterMarkers = {});
		        markers[gutterID] = value;
		        if (!value && isEmpty(markers)) { line.gutterMarkers = null; }
		        return true
		      })
		    }),

clearGutter: docMethodOp(function(gutterID) {
		      var this$1$1 = this;

this.iter(function (line) {
		        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
		          changeLine(this$1$1, line, "gutter", function () {
		            line.gutterMarkers[gutterID] = null;
		            if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; }
		            return true
		          });
		        }
		      });
		    }),

lineInfo: function(line) {
		      var n;
		      if (typeof line == "number") {
		        if (!isLine(this, line)) { return null }
		        n = line;
		        line = getLine(this, line);
		        if (!line) { return null }
		      } else {
		        n = lineNo(line);
		        if (n == null) { return null }
		      }
		      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
		              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
		              widgets: line.widgets}
		    },

addLineClass: docMethodOp(function(handle, where, cls) {
		      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
		        var prop = where == "text" ? "textClass"
		                 : where == "background" ? "bgClass"
		                 : where == "gutter" ? "gutterClass" : "wrapClass";
		        if (!line[prop]) { line[prop] = cls; }
		        else if (classTest(cls).test(line[prop])) { return false }
		        else { line[prop] += " " + cls; }
		        return true
		      })
		    }),
		    removeLineClass: docMethodOp(function(handle, where, cls) {
		      return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
		        var prop = where == "text" ? "textClass"
		                 : where == "background" ? "bgClass"
		                 : where == "gutter" ? "gutterClass" : "wrapClass";
		        var cur = line[prop];
		        if (!cur) { return false }
		        else if (cls == null) { line[prop] = null; }
		        else {
		          var found = cur.match(classTest(cls));
		          if (!found) { return false }
		          var end = found.index + found[0].length;
		          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
		        }
		        return true
		      })
		    }),

addLineWidget: docMethodOp(function(handle, node, options) {
		      return addLineWidget(this, handle, node, options)
		    }),
		    removeLineWidget: function(widget) { widget.clear(); },

markText: function(from, to, options) {
		      return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
		    },
		    setBookmark: function(pos, options) {
		      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
		                      insertLeft: options && options.insertLeft,
		                      clearWhenEmpty: false, shared: options && options.shared,
		                      handleMouseEvents: options && options.handleMouseEvents};
		      pos = clipPos(this, pos);
		      return markText(this, pos, pos, realOpts, "bookmark")
		    },
		    findMarksAt: function(pos) {
		      pos = clipPos(this, pos);
		      var markers = [], spans = getLine(this, pos.line).markedSpans;
		      if (spans) { for (var i = 0; i < spans.length; ++i) {
		        var span = spans[i];
		        if ((span.from == null || span.from <= pos.ch) &&
		            (span.to == null || span.to >= pos.ch))
		          { markers.push(span.marker.parent || span.marker); }
		      } }
		      return markers
		    },
		    findMarks: function(from, to, filter) {
		      from = clipPos(this, from); to = clipPos(this, to);
		      var found = [], lineNo = from.line;
		      this.iter(from.line, to.line + 1, function (line) {
		        var spans = line.markedSpans;
		        if (spans) { for (var i = 0; i < spans.length; i++) {
		          var span = spans[i];
		          if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
		                span.from == null && lineNo != from.line ||
		                span.from != null && lineNo == to.line && span.from >= to.ch) &&
		              (!filter || filter(span.marker)))
		            { found.push(span.marker.parent || span.marker); }
		        } }
		        ++lineNo;
		      });
		      return found
		    },
		    getAllMarks: function() {
		      var markers = [];
		      this.iter(function (line) {
		        var sps = line.markedSpans;
		        if (sps) { for (var i = 0; i < sps.length; ++i)
		          { if (sps[i].from != null) { markers.push(sps[i].marker); } } }
		      });
		      return markers
		    },

posFromIndex: function(off) {
		      var ch, lineNo = this.first, sepSize = this.lineSeparator().length;
		      this.iter(function (line) {
		        var sz = line.text.length + sepSize;
		        if (sz > off) { ch = off; return true }
		        off -= sz;
		        ++lineNo;
		      });
		      return clipPos(this, Pos(lineNo, ch))
		    },
		    indexFromPos: function (coords) {
		      coords = clipPos(this, coords);
		      var index = coords.ch;
		      if (coords.line < this.first || coords.ch < 0) { return 0 }
		      var sepSize = this.lineSeparator().length;
		      this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
		        index += line.text.length + sepSize;
		      });
		      return index
		    },

copy: function(copyHistory) {
		      var doc = new Doc(getLines(this, this.first, this.first + this.size),
		                        this.modeOption, this.first, this.lineSep, this.direction);
		      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
		      doc.sel = this.sel;
		      doc.extend = false;
		      if (copyHistory) {
		        doc.history.undoDepth = this.history.undoDepth;
		        doc.setHistory(this.getHistory());
		      }
		      return doc
		    },

linkedDoc: function(options) {
		      if (!options) { options = {}; }
		      var from = this.first, to = this.first + this.size;
		      if (options.from != null && options.from > from) { from = options.from; }
		      if (options.to != null && options.to < to) { to = options.to; }
		      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction);
		      if (options.sharedHist) { copy.history = this.history
		      ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
		      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
		      copySharedMarkers(copy, findSharedMarkers(this));
		      return copy
		    },
		    unlinkDoc: function(other) {
		      if (other instanceof CodeMirror) { other = other.doc; }
		      if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
		        var link = this.linked[i];
		        if (link.doc != other) { continue }
		        this.linked.splice(i, 1);
		        other.unlinkDoc(this);
		        detachSharedMarkers(findSharedMarkers(this));
		        break
		      } }
		      // If the histories were shared, split them again
		      if (other.history == this.history) {
		        var splitIds = [other.id];
		        linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true);
		        other.history = new History(null);
		        other.history.done = copyHistoryArray(this.history.done, splitIds);
		        other.history.undone = copyHistoryArray(this.history.undone, splitIds);
		      }
		    },
		    iterLinkedDocs: function(f) {linkedDocs(this, f);},

getMode: function() {return this.mode},
		    getEditor: function() {return this.cm},

splitLines: function(str) {
		      if (this.lineSep) { return str.split(this.lineSep) }
		      return splitLinesAuto(str)
		    },
		    lineSeparator: function() { return this.lineSep || "\n" },

setDirection: docMethodOp(function (dir) {
		      if (dir != "rtl") { dir = "ltr"; }
		      if (dir == this.direction) { return }
		      this.direction = dir;
		      this.iter(function (line) { return line.order = null; });
		      if (this.cm) { directionChanged(this.cm); }
		    })
		  });

// Public alias.
		  Doc.prototype.eachLine = Doc.prototype.iter;

// Kludge to work around strange IE behavior where it'll sometimes
		  // re-fire a series of drag-related events right after the drop (#1551)
		  var lastDrop = 0;

function onDragStart(cm, e) {
		    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
		    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }

e.dataTransfer.setData("Text", cm.getSelection());
		    e.dataTransfer.effectAllowed = "copyMove";

// Use dummy image instead of default browsers image.
		    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
		    if (e.dataTransfer.setDragImage && !safari) {
		      var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
		      img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
		      if (presto) {
		        img.width = img.height = 1;
		        cm.display.wrapper.appendChild(img);
		        // Force a relayout, or Opera won't use our image for some obscure reason
		        img._top = img.offsetTop;
		      }
		      e.dataTransfer.setDragImage(img, 0, 0);
		      if (presto) { img.parentNode.removeChild(img); }
		    }
		  }

function clearDragCursor(cm) {
		    if (cm.display.dragCursor) {
		      cm.display.lineSpace.removeChild(cm.display.dragCursor);
		      cm.display.dragCursor = null;
		    }
		  }

// These must be handled carefully, because naively registering a
		  // handler for each editor will cause the editors to never be
		  // garbage collected.

var keyNames = {
		    3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
		    19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
		    36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
		    46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
		    106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock",
		    173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
		    221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
		    63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
		  };

// Number keys
		  for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); }
		  // Alphabetic keys
		  for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); }
		  // Function keys
		  for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; }

var keyMap = {};

keyMap.basic = {
		    "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
		    "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
		    "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
		    "Tab": "defaultTab", "Shift-Tab": "indentAuto",
		    "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
		    "Esc": "singleSelection"
		  };
		  // Note that the save and find-related commands aren't defined by
		  // default. User code or addons can define them. Unknown commands
		  // are simply ignored.
		  keyMap.pcDefault = {
		    "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
		    "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
		    "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
		    "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
		    "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
		    "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
		    "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
		    "fallthrough": "basic"
		  };
		  // Very basic readline/emacs-style bindings, which are standard on Mac.
		  keyMap.emacsy = {
		    "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
		    "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp",
		    "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine",
		    "Ctrl-T": "transposeChars", "Ctrl-O": "openLine"
		  };
		  keyMap.macDefault = {
		    "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
		    "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
		    "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
		    "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
		    "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
		    "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
		    "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
		    "fallthrough": ["basic", "emacsy"]
		  };
		  keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;

// KEYMAP DISPATCH

// This is a kludge to keep keymaps mostly working as raw objects
		  // (backwards compatibility) while at the same time support features
		  // like normalization and multi-stroke key bindings. It compiles a
		  // new normalized keymap, and then updates the old object to reflect
		  // this.
		  function normalizeKeyMap(keymap) {
		    var copy = {};
		    for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
		      var value = keymap[keyname];
		      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
		      if (value == "...") { delete keymap[keyname]; continue }

function lookupKey(key, map, handle, context) {
		    map = getKeyMap(map);
		    var found = map.call ? map.call(key, context) : map[key];
		    if (found === false) { return "nothing" }
		    if (found === "...") { return "multi" }
		    if (found != null && handle(found)) { return "handled" }

if (map.fallthrough) {
		      if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
		        { return lookupKey(key, map.fallthrough, handle, context) }
		      for (var i = 0; i < map.fallthrough.length; i++) {
		        var result = lookupKey(key, map.fallthrough[i], handle, context);
		        if (result) { return result }
		      }
		    }
		  }

// Modifier key presses don't count as 'real' key presses for the
		  // purpose of keymap fallthrough.
		  function isModifierKey(value) {
		    var name = typeof value == "string" ? value : keyNames[value.keyCode];
		    return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
		  }

// Look up the name of a key as indicated by an event object.
		  function keyName(event, noShift) {
		    if (presto && event.keyCode == 34 && event["char"]) { return false }
		    var name = keyNames[event.keyCode];
		    if (name == null || event.altGraphKey) { return false }
		    // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause,
		    // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+)
		    if (event.keyCode == 3 && event.code) { name = event.code; }
		    return addModifierNames(name, event, noShift)
		  }

function getKeyMap(val) {
		    return typeof val == "string" ? keyMap[val] : val
		  }

// Helper for deleting text near the selection(s), used to implement
		  // backspace, delete, and similar functionality.
		  function deleteNearSelection(cm, compute) {
		    var ranges = cm.doc.sel.ranges, kill = [];
		    // Build up a set of ranges to kill first, merging overlapping
		    // ranges.
		    for (var i = 0; i < ranges.length; i++) {
		      var toKill = compute(ranges[i]);
		      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
		        var replaced = kill.pop();
		        if (cmp(replaced.from, toKill.from) < 0) {
		          toKill.from = replaced.from;
		          break
		        }
		      }
		      kill.push(toKill);
		    }
		    // Next, remove those actual ranges.
		    runInOp(cm, function () {
		      for (var i = kill.length - 1; i >= 0; i--)
		        { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); }
		      ensureCursorVisible(cm);
		    });
		  }

function moveCharLogically(line, ch, dir) {
		    var target = skipExtendingChars(line.text, ch + dir, dir);
		    return target < 0 || target > line.text.length ? null : target
		  }

function moveLogically(line, start, dir) {
		    var ch = moveCharLogically(line, start.ch, dir);
		    return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
		  }

if (cm.doc.direction == "rtl" || part.level == 1) {
		      var moveInStorageOrder = (part.level == 1) == (dir < 0);
		      var ch = mv(start, moveInStorageOrder ? 1 : -1);
		      if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
		        // Case 2: We move within an rtl part or in an rtl editor on the same visual line
		        var sticky = moveInStorageOrder ? "before" : "after";
		        return new Pos(start.line, ch, sticky)
		      }
		    }

// Case 3: Could not move within this bidi part in this visual line, so leave
		    // the current bidi part

var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
		      var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
		        ? new Pos(start.line, mv(ch, 1), "before")
		        : new Pos(start.line, ch, "after"); };

for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
		        var part = bidi[partPos];
		        var moveInStorageOrder = (dir > 0) == (part.level != 1);
		        var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1);
		        if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
		        ch = moveInStorageOrder ? part.from : mv(part.to, -1);
		        if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
		      }
		    };

// Case 3a: Look for other bidi parts on the same visual line
		    var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent);
		    if (res) { return res }

// Case 3b: Look for other bidi parts on the next visual line
		    var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1);
		    if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
		      res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh));
		      if (res) { return res }
		    }

// Case 4: Nowhere to move
		    return null
		  }

// Commands are parameter-less actions that can be performed on an
		  // editor, mostly used for keybindings.
		  var commands = {
		    selectAll: selectAll,
		    singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
		    killLine: function (cm) { return deleteNearSelection(cm, function (range) {
		      if (range.empty()) {
		        var len = getLine(cm.doc, range.head.line).text.length;
		        if (range.head.ch == len && range.head.line < cm.lastLine())
		          { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
		        else
		          { return {from: range.head, to: Pos(range.head.line, len)} }
		      } else {
		        return {from: range.from(), to: range.to()}
		      }
		    }); },
		    deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
		      from: Pos(range.from().line, 0),
		      to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
		    }); }); },
		    delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
		      from: Pos(range.from().line, 0), to: range.from()
		    }); }); },
		    delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
		      var top = cm.charCoords(range.head, "div").top + 5;
		      var leftPos = cm.coordsChar({left: 0, top: top}, "div");
		      return {from: leftPos, to: range.from()}
		    }); },
		    delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
		      var top = cm.charCoords(range.head, "div").top + 5;
		      var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
		      return {from: range.from(), to: rightPos }
		    }); },
		    undo: function (cm) { return cm.undo(); },
		    redo: function (cm) { return cm.redo(); },
		    undoSelection: function (cm) { return cm.undoSelection(); },
		    redoSelection: function (cm) { return cm.redoSelection(); },
		    goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
		    goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
		    goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
		      {origin: "+move", bias: 1}
		    ); },
		    goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
		      {origin: "+move", bias: 1}
		    ); },
		    goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
		      {origin: "+move", bias: -1}
		    ); },
		    goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
		      var top = cm.cursorCoords(range.head, "div").top + 5;
		      return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
		    }, sel_move); },
		    goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
		      var top = cm.cursorCoords(range.head, "div").top + 5;
		      return cm.coordsChar({left: 0, top: top}, "div")
		    }, sel_move); },
		    goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
		      var top = cm.cursorCoords(range.head, "div").top + 5;
		      var pos = cm.coordsChar({left: 0, top: top}, "div");
		      if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
		      return pos
		    }, sel_move); },
		    goLineUp: function (cm) { return cm.moveV(-1, "line"); },
		    goLineDown: function (cm) { return cm.moveV(1, "line"); },
		    goPageUp: function (cm) { return cm.moveV(-1, "page"); },
		    goPageDown: function (cm) { return cm.moveV(1, "page"); },
		    goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
		    goCharRight: function (cm) { return cm.moveH(1, "char"); },
		    goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
		    goColumnRight: function (cm) { return cm.moveH(1, "column"); },
		    goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
		    goGroupRight: function (cm) { return cm.moveH(1, "group"); },
		    goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
		    goWordRight: function (cm) { return cm.moveH(1, "word"); },
		    delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); },
		    delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
		    delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
		    delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
		    delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
		    delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
		    indentAuto: function (cm) { return cm.indentSelection("smart"); },
		    indentMore: function (cm) { return cm.indentSelection("add"); },
		    indentLess: function (cm) { return cm.indentSelection("subtract"); },
		    insertTab: function (cm) { return cm.replaceSelection("\t"); },
		    insertSoftTab: function (cm) {
		      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
		      for (var i = 0; i < ranges.length; i++) {
		        var pos = ranges[i].from();
		        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
		        spaces.push(spaceStr(tabSize - col % tabSize));
		      }
		      cm.replaceSelections(spaces);
		    },
		    defaultTab: function (cm) {
		      if (cm.somethingSelected()) { cm.indentSelection("add"); }
		      else { cm.execCommand("insertTab"); }
		    },
		    // Swap the two chars left and right of each selection's head.
		    // Move cursor behind the two swapped characters afterwards.
		    //
		    // Doesn't consider line feeds a character.
		    // Doesn't scan more than one line above to find a character.
		    // Doesn't do anything on an empty line.
		    // Doesn't do anything with non-empty selections.
		    transposeChars: function (cm) { return runInOp(cm, function () {
		      var ranges = cm.listSelections(), newSel = [];
		      for (var i = 0; i < ranges.length; i++) {
		        if (!ranges[i].empty()) { continue }
		        var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
		        if (line) {
		          if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); }
		          if (cur.ch > 0) {
		            cur = new Pos(cur.line, cur.ch + 1);
		            cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
		                            Pos(cur.line, cur.ch - 2), cur, "+transpose");
		          } else if (cur.line > cm.doc.first) {
		            var prev = getLine(cm.doc, cur.line - 1).text;
		            if (prev) {
		              cur = new Pos(cur.line, 1);
		              cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
		                              prev.charAt(prev.length - 1),
		                              Pos(cur.line - 1, prev.length - 1), cur, "+transpose");
		            }
		          }
		        }
		        newSel.push(new Range(cur, cur));
		      }
		      cm.setSelections(newSel);
		    }); },
		    newlineAndIndent: function (cm) { return runInOp(cm, function () {
		      var sels = cm.listSelections();
		      for (var i = sels.length - 1; i >= 0; i--)
		        { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); }
		      sels = cm.listSelections();
		      for (var i$1 = 0; i$1 < sels.length; i$1++)
		        { cm.indentLine(sels[i$1].from().line, null, true); }
		      ensureCursorVisible(cm);
		    }); },
		    openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
		    toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
		  };

// Run a handler that was bound to a key.
		  function doHandleBinding(cm, bound, dropShift) {
		    if (typeof bound == "string") {
		      bound = commands[bound];
		      if (!bound) { return false }
		    }
		    // Ensure previous input has been read, so that the handler sees a
		    // consistent view of the document
		    cm.display.input.ensurePolled();
		    var prevShift = cm.display.shift, done = false;
		    try {
		      if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
		      if (dropShift) { cm.display.shift = false; }
		      done = bound(cm) != Pass;
		    } finally {
		      cm.display.shift = prevShift;
		      cm.state.suppressEdits = false;
		    }
		    return done
		  }

// Note that, despite the name, this function is also used to check
		  // for bound mouse clicks.

var stopSeq = new Delayed;

function dispatchKeyInner(cm, name, e, handle) {
		    var result = lookupKeyForEditor(cm, name, handle);

if (result == "multi")
		      { cm.state.keySeq = name; }
		    if (result == "handled")
		      { signalLater(cm, "keyHandled", cm, name, e); }

if (result == "handled" || result == "multi") {
		      e_preventDefault(e);
		      restartBlink(cm);
		    }

return !!result
		  }

// Handle a key from the keydown event.
		  function handleKeyBinding(cm, e) {
		    var name = keyName(e, true);
		    if (!name) { return false }

if (e.shiftKey && !cm.state.keySeq) {
		      // First try to resolve full name (including 'Shift-'). Failing
		      // that, see if there is a cursor-motion command (starting with
		      // 'go') bound to the keyname without 'Shift-'.
		      return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
		          || dispatchKey(cm, name, e, function (b) {
		               if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
		                 { return doHandleBinding(cm, b) }
		             })
		    } else {
		      return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
		    }
		  }

// Handle a key from the keypress event
		  function handleCharBinding(cm, e, ch) {
		    return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
		  }

// Turn mouse into crosshair when Alt is held on Mac.
		    if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
		      { showCrossHair(cm); }
		  }

function showCrossHair(cm) {
		    var lineDiv = cm.display.lineDiv;
		    addClass(lineDiv, "CodeMirror-crosshair");

function up(e) {
		      if (e.keyCode == 18 || !e.altKey) {
		        rmClass(lineDiv, "CodeMirror-crosshair");
		        off(document, "keyup", up);
		        off(document, "mouseover", up);
		      }
		    }
		    on(document, "keyup", up);
		    on(document, "mouseover", up);
		  }

function onKeyUp(e) {
		    if (e.keyCode == 16) { this.doc.sel.shift = false; }
		    signalDOMEvent(this, e);
		  }

var DOUBLECLICK_DELAY = 400;

var PastClick = function(time, pos, button) {
		    this.time = time;
		    this.pos = pos;
		    this.button = button;
		  };

PastClick.prototype.compare = function (time, pos, button) {
		    return this.time + DOUBLECLICK_DELAY > time &&
		      cmp(pos, this.pos) == 0 && button == this.button
		  };

var lastClick, lastDoubleClick;
		  function clickRepeat(pos, button) {
		    var now = +new Date;
		    if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {
		      lastClick = lastDoubleClick = null;
		      return "triple"
		    } else if (lastClick && lastClick.compare(now, pos, button)) {
		      lastDoubleClick = new PastClick(now, pos, button);
		      lastClick = null;
		      return "double"
		    } else {
		      lastClick = new PastClick(now, pos, button);
		      lastDoubleClick = null;
		      return "single"
		    }
		  }

// A mouse down can be a single click, double click, triple click,
		  // start of selection drag, start of text drag, new cursor
		  // (ctrl-click), rectangle drag (alt-drag), or xwin
		  // middle-click-paste. Or it might be a click on something we should
		  // not interfere with, such as a scrollbar or widget.
		  function onMouseDown(e) {
		    var cm = this, display = cm.display;
		    if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
		    display.input.ensurePolled();
		    display.shift = e.shiftKey;

if (eventInWidget(display, e)) {
		      if (!webkit) {
		        // Briefly turn off draggability, to allow widgets to do
		        // normal dragging things.
		        display.scroller.draggable = false;
		        setTimeout(function () { return display.scroller.draggable = true; }, 100);
		      }
		      return
		    }
		    if (clickInGutter(cm, e)) { return }
		    var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single";
		    win(cm).focus();

// #3261: make sure, that we're not starting a second selection
		    if (button == 1 && cm.state.selectingText)
		      { cm.state.selectingText(e); }

if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }

if (button == 1) {
		      if (pos) { leftButtonDown(cm, pos, repeat, e); }
		      else if (e_target(e) == display.scroller) { e_preventDefault(e); }
		    } else if (button == 2) {
		      if (pos) { extendSelection(cm.doc, pos); }
		      setTimeout(function () { return display.input.focus(); }, 20);
		    } else if (button == 3) {
		      if (captureRightClick) { cm.display.input.onContextMenu(e); }
		      else { delayBlurEvent(cm); }
		    }
		  }

function handleMappedButton(cm, button, pos, repeat, event) {
		    var name = "Click";
		    if (repeat == "double") { name = "Double" + name; }
		    else if (repeat == "triple") { name = "Triple" + name; }
		    name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name;

return dispatchKey(cm,  addModifierNames(name, event), event, function (bound) {
		      if (typeof bound == "string") { bound = commands[bound]; }
		      if (!bound) { return false }
		      var done = false;
		      try {
		        if (cm.isReadOnly()) { cm.state.suppressEdits = true; }
		        done = bound(cm, pos) != Pass;
		      } finally {
		        cm.state.suppressEdits = false;
		      }
		      return done
		    })
		  }

function leftButtonDown(cm, pos, repeat, event) {
		    if (ie) { setTimeout(bind(ensureFocus, cm), 0); }
		    else { cm.curOp.focus = activeElt(root(cm)); }

var behavior = configureMouse(cm, repeat, event);

var sel = cm.doc.sel, contained;
		    if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
		        repeat == "single" && (contained = sel.contains(pos)) > -1 &&
		        (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&
		        (cmp(contained.to(), pos) > 0 || pos.xRel < 0))
		      { leftButtonStartDrag(cm, event, pos, behavior); }
		    else
		      { leftButtonSelect(cm, event, pos, behavior); }
		  }

// Start a text drag. When it ends, see if any dragging actually
		  // happen, and treat as a click if it didn't.
		  function leftButtonStartDrag(cm, event, pos, behavior) {
		    var display = cm.display, moved = false;
		    var dragEnd = operation(cm, function (e) {
		      if (webkit) { display.scroller.draggable = false; }
		      cm.state.draggingText = false;
		      if (cm.state.delayingBlurEvent) {
		        if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; }
		        else { delayBlurEvent(cm); }
		      }
		      off(display.wrapper.ownerDocument, "mouseup", dragEnd);
		      off(display.wrapper.ownerDocument, "mousemove", mouseMove);
		      off(display.scroller, "dragstart", dragStart);
		      off(display.scroller, "drop", dragEnd);
		      if (!moved) {
		        e_preventDefault(e);
		        if (!behavior.addNew)
		          { extendSelection(cm.doc, pos, null, null, behavior.extend); }
		        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
		        if ((webkit && !safari) || ie && ie_version == 9)
		          { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); }
		        else
		          { display.input.focus(); }
		      }
		    });
		    var mouseMove = function(e2) {
		      moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10;
		    };
		    var dragStart = function () { return moved = true; };
		    // Let the drag handler handle this.
		    if (webkit) { display.scroller.draggable = true; }
		    cm.state.draggingText = dragEnd;
		    dragEnd.copy = !behavior.moveOnDrag;
		    on(display.wrapper.ownerDocument, "mouseup", dragEnd);
		    on(display.wrapper.ownerDocument, "mousemove", mouseMove);
		    on(display.scroller, "dragstart", dragStart);
		    on(display.scroller, "drop", dragEnd);

cm.state.delayingBlurEvent = true;
		    setTimeout(function () { return display.input.focus(); }, 20);
		    // IE's approach to draggable
		    if (display.scroller.dragDrop) { display.scroller.dragDrop(); }
		  }

function rangeForUnit(cm, pos, unit) {
		    if (unit == "char") { return new Range(pos, pos) }
		    if (unit == "word") { return cm.findWordAt(pos) }
		    if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
		    var result = unit(cm, pos);
		    return new Range(result.from, result.to)
		  }

// Normal selection, as opposed to text dragging.
		  function leftButtonSelect(cm, event, start, behavior) {
		    if (ie) { delayBlurEvent(cm); }
		    var display = cm.display, doc = cm.doc;
		    e_preventDefault(event);

var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
		    if (behavior.addNew && !behavior.extend) {
		      ourIndex = doc.sel.contains(start);
		      if (ourIndex > -1)
		        { ourRange = ranges[ourIndex]; }
		      else
		        { ourRange = new Range(start, start); }
		    } else {
		      ourRange = doc.sel.primary();
		      ourIndex = doc.sel.primIndex;
		    }

if (behavior.unit == "rectangle") {
		      if (!behavior.addNew) { ourRange = new Range(start, start); }
		      start = posFromMouse(cm, event, true, true);
		      ourIndex = -1;
		    } else {
		      var range = rangeForUnit(cm, start, behavior.unit);
		      if (behavior.extend)
		        { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); }
		      else
		        { ourRange = range; }
		    }

if (!behavior.addNew) {
		      ourIndex = 0;
		      setSelection(doc, new Selection([ourRange], 0), sel_mouse);
		      startSel = doc.sel;
		    } else if (ourIndex == -1) {
		      ourIndex = ranges.length;
		      setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex),
		                   {scroll: false, origin: "*mouse"});
		    } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) {
		      setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
		                   {scroll: false, origin: "*mouse"});
		      startSel = doc.sel;
		    } else {
		      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
		    }

var lastPos = start;
		    function extendTo(pos) {
		      if (cmp(lastPos, pos) == 0) { return }
		      lastPos = pos;

if (behavior.unit == "rectangle") {
		        var ranges = [], tabSize = cm.options.tabSize;
		        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
		        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
		        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
		        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
		             line <= end; line++) {
		          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
		          if (left == right)
		            { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); }
		          else if (text.length > leftPos)
		            { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); }
		        }
		        if (!ranges.length) { ranges.push(new Range(start, start)); }
		        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
		                     {origin: "*mouse", scroll: false});
		        cm.scrollIntoView(pos);
		      } else {
		        var oldRange = ourRange;
		        var range = rangeForUnit(cm, pos, behavior.unit);
		        var anchor = oldRange.anchor, head;
		        if (cmp(range.anchor, anchor) > 0) {
		          head = range.head;
		          anchor = minPos(oldRange.from(), range.anchor);
		        } else {
		          head = range.anchor;
		          anchor = maxPos(oldRange.to(), range.head);
		        }
		        var ranges$1 = startSel.ranges.slice(0);
		        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head));
		        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse);
		      }
		    }

var editorSize = display.wrapper.getBoundingClientRect();
		    // Used to ensure timeout re-tries don't fire when another extend
		    // happened in the meantime (clearTimeout isn't reliable -- at
		    // least on Chrome, the timeouts still happen even when cleared,
		    // if the clear happens after their scheduled firing time).
		    var counter = 0;

function done(e) {
		      cm.state.selectingText = false;
		      counter = Infinity;
		      // If e is null or undefined we interpret this as someone trying
		      // to explicitly cancel the selection rather than the user
		      // letting go of the mouse button.
		      if (e) {
		        e_preventDefault(e);
		        display.input.focus();
		      }
		      off(display.wrapper.ownerDocument, "mousemove", move);
		      off(display.wrapper.ownerDocument, "mouseup", up);
		      doc.history.lastSelOrigin = null;
		    }

// Used when mouse-selecting to adjust the anchor to the proper side
		  // of a bidi jump depending on the visual position of the head.
		  function bidiSimplify(cm, range) {
		    var anchor = range.anchor;
		    var head = range.head;
		    var anchorLine = getLine(cm.doc, anchor.line);
		    if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range }
		    var order = getOrder(anchorLine);
		    if (!order) { return range }
		    var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index];
		    if (part.from != anchor.ch && part.to != anchor.ch) { return range }
		    var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1);
		    if (boundary == 0 || boundary == order.length) { return range }

// Compute the relative visual position of the head compared to the
		    // anchor (<0 is to the left, >0 to the right)
		    var leftSide;
		    if (head.line != anchor.line) {
		      leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0;
		    } else {
		      var headIndex = getBidiPartAt(order, head.ch, head.sticky);
		      var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1);
		      if (headIndex == boundary - 1 || headIndex == boundary)
		        { leftSide = dir < 0; }
		      else
		        { leftSide = dir > 0; }
		    }

var usePart = order[boundary + (leftSide ? -1 : 0)];
		    var from = leftSide == (usePart.level == 1);
		    var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before";
		    return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head)
		  }

// Determines whether an event happened in the gutter, and fires the
		  // handlers for the corresponding event.
		  function gutterEvent(cm, e, type, prevent) {
		    var mX, mY;
		    if (e.touches) {
		      mX = e.touches[0].clientX;
		      mY = e.touches[0].clientY;
		    } else {
		      try { mX = e.clientX; mY = e.clientY; }
		      catch(e$1) { return false }
		    }
		    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
		    if (prevent) { e_preventDefault(e); }

var display = cm.display;
		    var lineBox = display.lineDiv.getBoundingClientRect();

if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
		    mY -= lineBox.top - display.viewOffset;

for (var i = 0; i < cm.display.gutterSpecs.length; ++i) {
		      var g = display.gutters.childNodes[i];
		      if (g && g.getBoundingClientRect().right >= mX) {
		        var line = lineAtHeight(cm.doc, mY);
		        var gutter = cm.display.gutterSpecs[i];
		        signal(cm, type, cm, line, gutter.className, e);
		        return e_defaultPrevented(e)
		      }
		    }
		  }

function clickInGutter(cm, e) {
		    return gutterEvent(cm, e, "gutterClick", true)
		  }

// CONTEXT MENU HANDLING

// To make the context menu work, we need to briefly unhide the
		  // textarea (making it as unobtrusive as possible) to let the
		  // right-click take effect on it.
		  function onContextMenu(cm, e) {
		    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
		    if (signalDOMEvent(cm, e, "contextmenu")) { return }
		    if (!captureRightClick) { cm.display.input.onContextMenu(e); }
		  }

function contextMenuInGutter(cm, e) {
		    if (!hasHandler(cm, "gutterContextMenu")) { return false }
		    return gutterEvent(cm, e, "gutterContextMenu", false)
		  }

function themeChanged(cm) {
		    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
		      cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
		    clearCaches(cm);
		  }

var Init = {toString: function(){return "CodeMirror.Init"}};

var defaults = {};
		  var optionHandlers = {};

function defineOptions(CodeMirror) {
		    var optionHandlers = CodeMirror.optionHandlers;

CodeMirror.defineOption = option;

// Passed to option handlers when there is no old value.
		    CodeMirror.Init = Init;

// These two are, on init, called from the constructor because they
		    // have to be initialized before the editor can start at all.
		    option("value", "", function (cm, val) { return cm.setValue(val); }, true);
		    option("mode", null, function (cm, val) {
		      cm.doc.modeOption = val;
		      loadMode(cm);
		    }, true);

option("indentUnit", 2, loadMode, true);
		    option("indentWithTabs", false);
		    option("smartIndent", true);
		    option("tabSize", 4, function (cm) {
		      resetModeState(cm);
		      clearCaches(cm);
		      regChange(cm);
		    }, true);

option("lineSeparator", null, function (cm, val) {
		      cm.doc.lineSep = val;
		      if (!val) { return }
		      var newBreaks = [], lineNo = cm.doc.first;
		      cm.doc.iter(function (line) {
		        for (var pos = 0;;) {
		          var found = line.text.indexOf(val, pos);
		          if (found == -1) { break }
		          pos = found + val.length;
		          newBreaks.push(Pos(lineNo, found));
		        }
		        lineNo++;
		      });
		      for (var i = newBreaks.length - 1; i >= 0; i--)
		        { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); }
		    });
		    option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\u202d\u202e\u2066\u2067\u2069\ufeff\ufff9-\ufffc]/g, function (cm, val, old) {
		      cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
		      if (old != Init) { cm.refresh(); }
		    });
		    option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true);
		    option("electricChars", true);
		    option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
		      throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
		    }, true);
		    option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true);
		    option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true);
		    option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true);
		    option("rtlMoveVisually", !windows);
		    option("wholeLineUpdateBefore", true);

option("theme", "default", function (cm) {
		      themeChanged(cm);
		      updateGutters(cm);
		    }, true);
		    option("keyMap", "default", function (cm, val, old) {
		      var next = getKeyMap(val);
		      var prev = old != Init && getKeyMap(old);
		      if (prev && prev.detach) { prev.detach(cm, next); }
		      if (next.attach) { next.attach(cm, prev || null); }
		    });
		    option("extraKeys", null);
		    option("configureMouse", null);

option("lineWrapping", false, wrappingChanged, true);
		    option("gutters", [], function (cm, val) {
		      cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers);
		      updateGutters(cm);
		    }, true);
		    option("fixedGutter", true, function (cm, val) {
		      cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
		      cm.refresh();
		    }, true);
		    option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true);
		    option("scrollbarStyle", "native", function (cm) {
		      initScrollbars(cm);
		      updateScrollbars(cm);
		      cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
		      cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
		    }, true);
		    option("lineNumbers", false, function (cm, val) {
		      cm.display.gutterSpecs = getGutters(cm.options.gutters, val);
		      updateGutters(cm);
		    }, true);
		    option("firstLineNumber", 1, updateGutters, true);
		    option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true);
		    option("showCursorWhenSelecting", false, updateSelection, true);

option("resetSelectionOnContextMenu", true);
		    option("lineWiseCopyCut", true);
		    option("pasteLinesPerSelection", true);
		    option("selectionsMayTouch", false);

option("readOnly", false, function (cm, val) {
		      if (val == "nocursor") {
		        onBlur(cm);
		        cm.display.input.blur();
		      }
		      cm.display.input.readOnlyChanged(val);
		    });

option("screenReaderLabel", null, function (cm, val) {
		      val = (val === '') ? null : val;
		      cm.display.input.screenReaderLabelChanged(val);
		    });

option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true);
		    option("dragDrop", true, dragDropChanged);
		    option("allowDropFileTypes", null);

option("cursorBlinkRate", 530);
		    option("cursorScrollMargin", 0);
		    option("cursorHeight", 1, updateSelection, true);
		    option("singleCursorHeightPerLine", true, updateSelection, true);
		    option("workTime", 100);
		    option("workDelay", 100);
		    option("flattenSpans", true, resetModeState, true);
		    option("addModeClass", false, resetModeState, true);
		    option("pollInterval", 100);
		    option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; });
		    option("historyEventDelay", 1250);
		    option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true);
		    option("maxHighlightLength", 10000, resetModeState, true);
		    option("moveInputWithCursor", true, function (cm, val) {
		      if (!val) { cm.display.input.resetPosition(); }
		    });

option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; });
		    option("autofocus", null);
		    option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true);
		    option("phrases", null);
		  }

function dragDropChanged(cm, value, old) {
		    var wasOn = old && old != Init;
		    if (!value != !wasOn) {
		      var funcs = cm.display.dragFunctions;
		      var toggle = value ? on : off;
		      toggle(cm.display.scroller, "dragstart", funcs.start);
		      toggle(cm.display.scroller, "dragenter", funcs.enter);
		      toggle(cm.display.scroller, "dragover", funcs.over);
		      toggle(cm.display.scroller, "dragleave", funcs.leave);
		      toggle(cm.display.scroller, "drop", funcs.drop);
		    }
		  }

// A CodeMirror instance represents an editor. This is the object
		  // that user code is usually dealing with.

function CodeMirror(place, options) {
		    var this$1$1 = this;

if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }

this.options = options = options ? copyObj(options) : {};
		    // Determine effective options based on given values and defaults.
		    copyObj(defaults, options, false);

var doc = options.value;
		    if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
		    else if (options.mode) { doc.modeOption = options.mode; }
		    this.doc = doc;

var input = new CodeMirror.inputStyles[options.inputStyle](this);
		    var display = this.display = new Display(place, doc, input, options);
		    display.wrapper.CodeMirror = this;
		    themeChanged(this);
		    if (options.lineWrapping)
		      { this.display.wrapper.className += " CodeMirror-wrap"; }
		    initScrollbars(this);

this.state = {
		      keyMaps: [],  // stores maps added by addKeyMap
		      overlays: [], // highlighting overlays, as added by addOverlay
		      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
		      overwrite: false,
		      delayingBlurEvent: false,
		      focused: false,
		      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
		      pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll
		      selectingText: false,
		      draggingText: false,
		      highlight: new Delayed(), // stores highlight worker timeout
		      keySeq: null,  // Unfinished key sequence
		      specialChars: null
		    };

if (options.autofocus && !mobile) { display.input.focus(); }

// Override magic textarea content restore that IE sometimes does
		    // on our hidden textarea on reload
		    if (ie && ie_version < 11) { setTimeout(function () { return this$1$1.display.input.reset(true); }, 20); }

registerEventHandlers(this);
		    ensureGlobalHandlers();

startOperation(this);
		    this.curOp.forceUpdate = true;
		    attachDoc(this, doc);

if ((options.autofocus && !mobile) || this.hasFocus())
		      { setTimeout(function () {
		        if (this$1$1.hasFocus() && !this$1$1.state.focused) { onFocus(this$1$1); }
		      }, 20); }
		    else
		      { onBlur(this); }

for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
		      { optionHandlers[opt](this, options[opt], Init); } }
		    maybeUpdateLineNumberWidth(this);
		    if (options.finishInit) { options.finishInit(this); }
		    for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); }
		    endOperation(this);
		    // Suppress optimizelegibility in Webkit, since it breaks text
		    // measuring on line wrapping boundaries.
		    if (webkit && options.lineWrapping &&
		        getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
		      { display.lineDiv.style.textRendering = "auto"; }
		  }

// The default configuration options.
		  CodeMirror.defaults = defaults;
		  // Functions to run when options are changed.
		  CodeMirror.optionHandlers = optionHandlers;

// Attach the necessary event handlers when initializing the editor
		  function registerEventHandlers(cm) {
		    var d = cm.display;
		    on(d.scroller, "mousedown", operation(cm, onMouseDown));
		    // Older IE's will not fire a second mousedown for a double click
		    if (ie && ie_version < 11)
		      { on(d.scroller, "dblclick", operation(cm, function (e) {
		        if (signalDOMEvent(cm, e)) { return }
		        var pos = posFromMouse(cm, e);
		        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
		        e_preventDefault(e);
		        var word = cm.findWordAt(pos);
		        extendSelection(cm.doc, word.anchor, word.head);
		      })); }
		    else
		      { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); }
		    // Some browsers fire contextmenu *after* opening the menu, at
		    // which point we can't mess with it anymore. Context menu is
		    // handled in onMouseDown for these browsers.
		    on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); });
		    on(d.input.getField(), "contextmenu", function (e) {
		      if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); }
		    });

// Used to suppress mouse event handling when a touch happens
		    var touchFinished, prevTouch = {end: 0};
		    function finishTouch() {
		      if (d.activeTouch) {
		        touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000);
		        prevTouch = d.activeTouch;
		        prevTouch.end = +new Date;
		      }
		    }
		    function isMouseLikeTouchEvent(e) {
		      if (e.touches.length != 1) { return false }
		      var touch = e.touches[0];
		      return touch.radiusX <= 1 && touch.radiusY <= 1
		    }
		    function farAway(touch, other) {
		      if (other.left == null) { return true }
		      var dx = other.left - touch.left, dy = other.top - touch.top;
		      return dx * dx + dy * dy > 20 * 20
		    }
		    on(d.scroller, "touchstart", function (e) {
		      if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) {
		        d.input.ensurePolled();
		        clearTimeout(touchFinished);
		        var now = +new Date;
		        d.activeTouch = {start: now, moved: false,
		                         prev: now - prevTouch.end <= 300 ? prevTouch : null};
		        if (e.touches.length == 1) {
		          d.activeTouch.left = e.touches[0].pageX;
		          d.activeTouch.top = e.touches[0].pageY;
		        }
		      }
		    });
		    on(d.scroller, "touchmove", function () {
		      if (d.activeTouch) { d.activeTouch.moved = true; }
		    });
		    on(d.scroller, "touchend", function (e) {
		      var touch = d.activeTouch;
		      if (touch && !eventInWidget(d, e) && touch.left != null &&
		          !touch.moved && new Date - touch.start < 300) {
		        var pos = cm.coordsChar(d.activeTouch, "page"), range;
		        if (!touch.prev || farAway(touch, touch.prev)) // Single tap
		          { range = new Range(pos, pos); }
		        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
		          { range = cm.findWordAt(pos); }
		        else // Triple tap
		          { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); }
		        cm.setSelection(range.anchor, range.head);
		        cm.focus();
		        e_preventDefault(e);
		      }
		      finishTouch();
		    });
		    on(d.scroller, "touchcancel", finishTouch);

// Sync scrolling between fake scrollbars and real scrollable
		    // area, ensure viewport is updated when scrolling.
		    on(d.scroller, "scroll", function () {
		      if (d.scroller.clientHeight) {
		        updateScrollTop(cm, d.scroller.scrollTop);
		        setScrollLeft(cm, d.scroller.scrollLeft, true);
		        signal(cm, "scroll", cm);
		      }
		    });

// Listen to wheel events in order to try and update the viewport on time.
		    on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); });
		    on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); });

// Prevent wrapper from ever scrolling
		    on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });

d.dragFunctions = {
		      enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }},
		      over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
		      start: function (e) { return onDragStart(cm, e); },
		      drop: operation(cm, onDrop),
		      leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }}
		    };

var initHooks = [];
		  CodeMirror.defineInitHook = function (f) { return initHooks.push(f); };

// Indent the given line. The how parameter can be "smart",
		  // "add"/null, "subtract", or "prev". When aggressive is false
		  // (typically set to true for forced single-line indents), empty
		  // lines are not indented, and places where the mode returns Pass
		  // are left alone.
		  function indentLine(cm, n, how, aggressive) {
		    var doc = cm.doc, state;
		    if (how == null) { how = "add"; }
		    if (how == "smart") {
		      // Fall back to "prev" when the mode doesn't have an indentation
		      // method.
		      if (!doc.mode.indent) { how = "prev"; }
		      else { state = getContextBefore(cm, n).state; }
		    }

if (indentString != curSpaceString) {
		      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
		      line.stateAfter = null;
		      return true
		    } else {
		      // Ensure that, if the cursor was in the whitespace at the start
		      // of the line, it is moved to the end of that space.
		      for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
		        var range = doc.sel.ranges[i$1];
		        if (range.head.line == n && range.head.ch < curSpaceString.length) {
		          var pos$1 = Pos(n, curSpaceString.length);
		          replaceOneSelection(doc, i$1, new Range(pos$1, pos$1));
		          break
		        }
		      }
		    }
		  }

// This will be set to a {lineWise: bool, text: [string]} object, so
		  // that, when pasting, we know what kind of selections the copied
		  // text was made out of.
		  var lastCopied = null;

function setLastCopied(newLastCopied) {
		    lastCopied = newLastCopied;
		  }

function applyTextInput(cm, inserted, deleted, sel, origin) {
		    var doc = cm.doc;
		    cm.display.shift = false;
		    if (!sel) { sel = doc.sel; }

ensureCursorVisible(cm);
		    if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; }
		    cm.curOp.typing = true;
		    cm.state.pasteIncoming = cm.state.cutIncoming = -1;
		  }

function triggerElectric(cm, inserted) {
		    // When an 'electric' character is inserted, immediately trigger a reindent
		    if (!cm.options.electricChars || !cm.options.smartIndent) { return }
		    var sel = cm.doc.sel;

for (var i = sel.ranges.length - 1; i >= 0; i--) {
		      var range = sel.ranges[i];
		      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
		      var mode = cm.getModeAt(range.head);
		      var indented = false;
		      if (mode.electricChars) {
		        for (var j = 0; j < mode.electricChars.length; j++)
		          { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
		            indented = indentLine(cm, range.head.line, "smart");
		            break
		          } }
		      } else if (mode.electricInput) {
		        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
		          { indented = indentLine(cm, range.head.line, "smart"); }
		      }
		      if (indented) { signalLater(cm, "electricInput", cm, range.head.line); }
		    }
		  }

function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) {
		    field.setAttribute("autocorrect", autocorrect ? "on" : "off");
		    field.setAttribute("autocapitalize", autocapitalize ? "on" : "off");
		    field.setAttribute("spellcheck", !!spellcheck);
		  }

// The publicly visible API. Note that methodOp(f) means
		  // 'wrap f in an operation, performed on its `this` parameter'.

// This is not the complete set of editor methods. Most of the
		  // methods defined on the Doc type are also injected into
		  // CodeMirror.prototype, for backwards compatibility and
		  // convenience.

function addEditorMethods(CodeMirror) {
		    var optionHandlers = CodeMirror.optionHandlers;

var helpers = CodeMirror.helpers = {};

CodeMirror.prototype = {
		      constructor: CodeMirror,
		      focus: function(){win(this).focus(); this.display.input.focus();},

setOption: function(option, value) {
		        var options = this.options, old = options[option];
		        if (options[option] == value && option != "mode") { return }
		        options[option] = value;
		        if (optionHandlers.hasOwnProperty(option))
		          { operation(this, optionHandlers[option])(this, value, old); }
		        signal(this, "optionChange", this, option);
		      },

getOption: function(option) {return this.options[option]},
		      getDoc: function() {return this.doc},

addKeyMap: function(map, bottom) {
		        this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
		      },
		      removeKeyMap: function(map) {
		        var maps = this.state.keyMaps;
		        for (var i = 0; i < maps.length; ++i)
		          { if (maps[i] == map || maps[i].name == map) {
		            maps.splice(i, 1);
		            return true
		          } }
		      },

addOverlay: methodOp(function(spec, options) {
		        var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
		        if (mode.startState) { throw new Error("Overlays may not be stateful.") }
		        insertSorted(this.state.overlays,
		                     {mode: mode, modeSpec: spec, opaque: options && options.opaque,
		                      priority: (options && options.priority) || 0},
		                     function (overlay) { return overlay.priority; });
		        this.state.modeGen++;
		        regChange(this);
		      }),
		      removeOverlay: methodOp(function(spec) {
		        var overlays = this.state.overlays;
		        for (var i = 0; i < overlays.length; ++i) {
		          var cur = overlays[i].modeSpec;
		          if (cur == spec || typeof spec == "string" && cur.name == spec) {
		            overlays.splice(i, 1);
		            this.state.modeGen++;
		            regChange(this);
		            return
		          }
		        }
		      }),

indentLine: methodOp(function(n, dir, aggressive) {
		        if (typeof dir != "string" && typeof dir != "number") {
		          if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; }
		          else { dir = dir ? "add" : "subtract"; }
		        }
		        if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); }
		      }),
		      indentSelection: methodOp(function(how) {
		        var ranges = this.doc.sel.ranges, end = -1;
		        for (var i = 0; i < ranges.length; i++) {
		          var range = ranges[i];
		          if (!range.empty()) {
		            var from = range.from(), to = range.to();
		            var start = Math.max(end, from.line);
		            end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
		            for (var j = start; j < end; ++j)
		              { indentLine(this, j, how); }
		            var newRanges = this.doc.sel.ranges;
		            if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
		              { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); }
		          } else if (range.head.line > end) {
		            indentLine(this, range.head.line, how, true);
		            end = range.head.line;
		            if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); }
		          }
		        }
		      }),

// Fetch the parser token for a given character. Useful for hacks
		      // that want to inspect the mode state (say, for completion).
		      getTokenAt: function(pos, precise) {
		        return takeToken(this, pos, precise)
		      },

getLineTokens: function(line, precise) {
		        return takeToken(this, Pos(line), precise, true)
		      },

getTokenTypeAt: function(pos) {
		        pos = clipPos(this.doc, pos);
		        var styles = getLineStyles(this, getLine(this.doc, pos.line));
		        var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
		        var type;
		        if (ch == 0) { type = styles[2]; }
		        else { for (;;) {
		          var mid = (before + after) >> 1;
		          if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; }
		          else if (styles[mid * 2 + 1] < ch) { before = mid + 1; }
		          else { type = styles[mid * 2 + 2]; break }
		        } }
		        var cut = type ? type.indexOf("overlay ") : -1;
		        return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
		      },

getModeAt: function(pos) {
		        var mode = this.doc.mode;
		        if (!mode.innerMode) { return mode }
		        return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
		      },

getHelper: function(pos, type) {
		        return this.getHelpers(pos, type)[0]
		      },

getHelpers: function(pos, type) {
		        var found = [];
		        if (!helpers.hasOwnProperty(type)) { return found }
		        var help = helpers[type], mode = this.getModeAt(pos);
		        if (typeof mode[type] == "string") {
		          if (help[mode[type]]) { found.push(help[mode[type]]); }
		        } else if (mode[type]) {
		          for (var i = 0; i < mode[type].length; i++) {
		            var val = help[mode[type][i]];
		            if (val) { found.push(val); }
		          }
		        } else if (mode.helperType && help[mode.helperType]) {
		          found.push(help[mode.helperType]);
		        } else if (help[mode.name]) {
		          found.push(help[mode.name]);
		        }
		        for (var i$1 = 0; i$1 < help._global.length; i$1++) {
		          var cur = help._global[i$1];
		          if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
		            { found.push(cur.val); }
		        }
		        return found
		      },

getStateAfter: function(line, precise) {
		        var doc = this.doc;
		        line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
		        return getContextBefore(this, line + 1, precise).state
		      },

cursorCoords: function(start, mode) {
		        var pos, range = this.doc.sel.primary();
		        if (start == null) { pos = range.head; }
		        else if (typeof start == "object") { pos = clipPos(this.doc, start); }
		        else { pos = start ? range.from() : range.to(); }
		        return cursorCoords(this, pos, mode || "page")
		      },

charCoords: function(pos, mode) {
		        return charCoords(this, clipPos(this.doc, pos), mode || "page")
		      },

coordsChar: function(coords, mode) {
		        coords = fromCoordSystem(this, coords, mode || "page");
		        return coordsChar(this, coords.left, coords.top)
		      },

lineAtHeight: function(height, mode) {
		        height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
		        return lineAtHeight(this.doc, height + this.display.viewOffset)
		      },
		      heightAtLine: function(line, mode, includeWidgets) {
		        var end = false, lineObj;
		        if (typeof line == "number") {
		          var last = this.doc.first + this.doc.size - 1;
		          if (line < this.doc.first) { line = this.doc.first; }
		          else if (line > last) { line = last; end = true; }
		          lineObj = getLine(this.doc, line);
		        } else {
		          lineObj = line;
		        }
		        return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
		          (end ? this.doc.height - heightAtLine(lineObj) : 0)
		      },

defaultTextHeight: function() { return textHeight(this.display) },
		      defaultCharWidth: function() { return charWidth(this.display) },

getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},

addWidget: function(pos, node, scroll, vert, horiz) {
		        var display = this.display;
		        pos = cursorCoords(this, clipPos(this.doc, pos));
		        var top = pos.bottom, left = pos.left;
		        node.style.position = "absolute";
		        node.setAttribute("cm-ignore-events", "true");
		        this.display.input.setUneditable(node);
		        display.sizer.appendChild(node);
		        if (vert == "over") {
		          top = pos.top;
		        } else if (vert == "above" || vert == "near") {
		          var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
		          hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
		          // Default to positioning above (if specified and possible); otherwise default to positioning below
		          if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
		            { top = pos.top - node.offsetHeight; }
		          else if (pos.bottom + node.offsetHeight <= vspace)
		            { top = pos.bottom; }
		          if (left + node.offsetWidth > hspace)
		            { left = hspace - node.offsetWidth; }
		        }
		        node.style.top = top + "px";
		        node.style.left = node.style.right = "";
		        if (horiz == "right") {
		          left = display.sizer.clientWidth - node.offsetWidth;
		          node.style.right = "0px";
		        } else {
		          if (horiz == "left") { left = 0; }
		          else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; }
		          node.style.left = left + "px";
		        }
		        if (scroll)
		          { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); }
		      },

triggerOnKeyDown: methodOp(onKeyDown),
		      triggerOnKeyPress: methodOp(onKeyPress),
		      triggerOnKeyUp: onKeyUp,
		      triggerOnMouseDown: methodOp(onMouseDown),

execCommand: function(cmd) {
		        if (commands.hasOwnProperty(cmd))
		          { return commands[cmd].call(null, this) }
		      },

triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),

findPosH: function(from, amount, unit, visually) {
		        var dir = 1;
		        if (amount < 0) { dir = -1; amount = -amount; }
		        var cur = clipPos(this.doc, from);
		        for (var i = 0; i < amount; ++i) {
		          cur = findPosH(this.doc, cur, dir, unit, visually);
		          if (cur.hitSide) { break }
		        }
		        return cur
		      },

moveH: methodOp(function(dir, unit) {
		        var this$1$1 = this;

this.extendSelectionsBy(function (range) {
		          if (this$1$1.display.shift || this$1$1.doc.extend || range.empty())
		            { return findPosH(this$1$1.doc, range.head, dir, unit, this$1$1.options.rtlMoveVisually) }
		          else
		            { return dir < 0 ? range.from() : range.to() }
		        }, sel_move);
		      }),

deleteH: methodOp(function(dir, unit) {
		        var sel = this.doc.sel, doc = this.doc;
		        if (sel.somethingSelected())
		          { doc.replaceSelection("", null, "+delete"); }
		        else
		          { deleteNearSelection(this, function (range) {
		            var other = findPosH(doc, range.head, dir, unit, false);
		            return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
		          }); }
		      }),

findPosV: function(from, amount, unit, goalColumn) {
		        var dir = 1, x = goalColumn;
		        if (amount < 0) { dir = -1; amount = -amount; }
		        var cur = clipPos(this.doc, from);
		        for (var i = 0; i < amount; ++i) {
		          var coords = cursorCoords(this, cur, "div");
		          if (x == null) { x = coords.left; }
		          else { coords.left = x; }
		          cur = findPosV(this, coords, dir, unit);
		          if (cur.hitSide) { break }
		        }
		        return cur
		      },

moveV: methodOp(function(dir, unit) {
		        var this$1$1 = this;

// Find the word at the given position (as returned by coordsChar).
		      findWordAt: function(pos) {
		        var doc = this.doc, line = getLine(doc, pos.line).text;
		        var start = pos.ch, end = pos.ch;
		        if (line) {
		          var helper = this.getHelper(pos, "wordChars");
		          if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; }
		          var startChar = line.charAt(start);
		          var check = isWordChar(startChar, helper)
		            ? function (ch) { return isWordChar(ch, helper); }
		            : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
		            : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); };
		          while (start > 0 && check(line.charAt(start - 1))) { --start; }
		          while (end < line.length && check(line.charAt(end))) { ++end; }
		        }
		        return new Range(Pos(pos.line, start), Pos(pos.line, end))
		      },

toggleOverwrite: function(value) {
		        if (value != null && value == this.state.overwrite) { return }
		        if (this.state.overwrite = !this.state.overwrite)
		          { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); }
		        else
		          { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); }

signal(this, "overwriteToggle", this, this.state.overwrite);
		      },
		      hasFocus: function() { return this.display.input.getField() == activeElt(root(this)) },
		      isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },

scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }),
		      getScrollInfo: function() {
		        var scroller = this.display.scroller;
		        return {left: scroller.scrollLeft, top: scroller.scrollTop,
		                height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
		                width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
		                clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
		      },

scrollIntoView: methodOp(function(range, margin) {
		        if (range == null) {
		          range = {from: this.doc.sel.primary().head, to: null};
		          if (margin == null) { margin = this.options.cursorScrollMargin; }
		        } else if (typeof range == "number") {
		          range = {from: Pos(range, 0), to: null};
		        } else if (range.from == null) {
		          range = {from: range, to: null};
		        }
		        if (!range.to) { range.to = range.from; }
		        range.margin = margin || 0;

if (range.from.line != null) {
		          scrollToRange(this, range);
		        } else {
		          scrollToCoordsRange(this, range.from, range.to, range.margin);
		        }
		      }),

setSize: methodOp(function(width, height) {
		        var this$1$1 = this;

operation: function(f){return runInOp(this, f)},
		      startOperation: function(){return startOperation(this)},
		      endOperation: function(){return endOperation(this)},

refresh: methodOp(function() {
		        var oldHeight = this.display.cachedTextHeight;
		        regChange(this);
		        this.curOp.forceUpdate = true;
		        clearCaches(this);
		        scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop);
		        updateGutterSpace(this.display);
		        if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping)
		          { estimateLineHeights(this); }
		        signal(this, "refresh", this);
		      }),

swapDoc: methodOp(function(doc) {
		        var old = this.doc;
		        old.cm = null;
		        // Cancel the current text selection if any (#5821)
		        if (this.state.selectingText) { this.state.selectingText(); }
		        attachDoc(this, doc);
		        clearCaches(this);
		        this.display.input.reset();
		        scrollToCoords(this, doc.scrollLeft, doc.scrollTop);
		        this.curOp.forceScroll = true;
		        signalLater(this, "swapDoc", this, old);
		        return old
		      }),

phrase: function(phraseText) {
		        var phrases = this.options.phrases;
		        return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText
		      },

getInputField: function(){return this.display.input.getField()},
		      getWrapperElement: function(){return this.display.wrapper},
		      getScrollerElement: function(){return this.display.scroller},
		      getGutterElement: function(){return this.display.gutters}
		    };
		    eventMixin(CodeMirror);

CodeMirror.registerHelper = function(type, name, value) {
		      if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; }
		      helpers[type][name] = value;
		    };
		    CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
		      CodeMirror.registerHelper(type, name, value);
		      helpers[type]._global.push({pred: predicate, val: value});
		    };
		  }

// Used for horizontal relative motion. Dir is -1 or 1 (left or
		  // right), unit can be "codepoint", "char", "column" (like char, but
		  // doesn't cross line boundaries), "word" (across next word), or
		  // "group" (to the start of next group of word or
		  // non-word-non-whitespace chars). The visually param controls
		  // whether, in right-to-left text, direction 1 means to move towards
		  // the next index in the string, or towards the character to the right
		  // of the current position. The resulting position will have a
		  // hitSide=true property if it reached the end of the document.
		  function findPosH(doc, pos, dir, unit, visually) {
		    var oldPos = pos;
		    var origDir = dir;
		    var lineObj = getLine(doc, pos.line);
		    var lineDir = visually && doc.direction == "rtl" ? -dir : dir;
		    function findNextLine() {
		      var l = pos.line + lineDir;
		      if (l < doc.first || l >= doc.first + doc.size) { return false }
		      pos = new Pos(l, pos.ch, pos.sticky);
		      return lineObj = getLine(doc, l)
		    }
		    function moveOnce(boundToLine) {
		      var next;
		      if (unit == "codepoint") {
		        var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1));
		        if (isNaN(ch)) {
		          next = null;
		        } else {
		          var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF;
		          next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir);
		        }
		      } else if (visually) {
		        next = moveVisually(doc.cm, lineObj, pos, dir);
		      } else {
		        next = moveLogically(lineObj, pos, dir);
		      }
		      if (next == null) {
		        if (!boundToLine && findNextLine())
		          { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); }
		        else
		          { return false }
		      } else {
		        pos = next;
		      }
		      return true
		    }

if (unit == "char" || unit == "codepoint") {
		      moveOnce();
		    } else if (unit == "column") {
		      moveOnce(true);
		    } else if (unit == "word" || unit == "group") {
		      var sawType = null, group = unit == "group";
		      var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
		      for (var first = true;; first = false) {
		        if (dir < 0 && !moveOnce(!first)) { break }
		        var cur = lineObj.text.charAt(pos.ch) || "\n";
		        var type = isWordChar(cur, helper) ? "w"
		          : group && cur == "\n" ? "n"
		          : !group || /\s/.test(cur) ? null
		          : "p";
		        if (group && !first && !type) { type = "s"; }
		        if (sawType && sawType != type) {
		          if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";}
		          break
		        }

if (type) { sawType = type; }
		        if (dir > 0 && !moveOnce(!first)) { break }
		      }
		    }
		    var result = skipAtomic(doc, pos, oldPos, origDir, true);
		    if (equalCursorPos(oldPos, result)) { result.hitSide = true; }
		    return result
		  }

// For relative vertical movement. Dir may be -1 or 1. Unit can be
		  // "page" or "line". The resulting position will have a hitSide=true
		  // property if it reached the end of the document.
		  function findPosV(cm, pos, dir, unit) {
		    var doc = cm.doc, x = pos.left, y;
		    if (unit == "page") {
		      var pageSize = Math.min(cm.display.wrapper.clientHeight, win(cm).innerHeight || doc(cm).documentElement.clientHeight);
		      var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3);
		      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount;

} else if (unit == "line") {
		      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
		    }
		    var target;
		    for (;;) {
		      target = coordsChar(cm, x, y);
		      if (!target.outside) { break }
		      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
		      y += dir * 5;
		    }
		    return target
		  }

// CONTENTEDITABLE INPUT STYLE

var ContentEditableInput = function(cm) {
		    this.cm = cm;
		    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
		    this.polling = new Delayed();
		    this.composing = null;
		    this.gracePeriod = false;
		    this.readDOMTimeout = null;
		  };

ContentEditableInput.prototype.init = function (display) {
		      var this$1$1 = this;

var input = this, cm = input.cm;
		    var div = input.div = display.lineDiv;
		    div.contentEditable = true;
		    disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize);

function belongsToInput(e) {
		      for (var t = e.target; t; t = t.parentNode) {
		        if (t == div) { return true }
		        if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break }
		      }
		      return false
		    }

on(div, "paste", function (e) {
		      if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
		      // IE doesn't fire input events, so we schedule a read for the pasted content in this way
		      if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1$1.updateFromDOM(); }), 20); }
		    });

on(div, "compositionstart", function (e) {
		      this$1$1.composing = {data: e.data, done: false};
		    });
		    on(div, "compositionupdate", function (e) {
		      if (!this$1$1.composing) { this$1$1.composing = {data: e.data, done: false}; }
		    });
		    on(div, "compositionend", function (e) {
		      if (this$1$1.composing) {
		        if (e.data != this$1$1.composing.data) { this$1$1.readFromDOMSoon(); }
		        this$1$1.composing.done = true;
		      }
		    });

on(div, "touchstart", function () { return input.forceCompositionEnd(); });

on(div, "input", function () {
		      if (!this$1$1.composing) { this$1$1.readFromDOMSoon(); }
		    });

ContentEditableInput.prototype.screenReaderLabelChanged = function (label) {
		    // Label for screenreaders, accessibility
		    if(label) {
		      this.div.setAttribute('aria-label', label);
		    } else {
		      this.div.removeAttribute('aria-label');
		    }
		  };

ContentEditableInput.prototype.prepareSelection = function () {
		    var result = prepareSelection(this.cm, false);
		    result.focus = activeElt(rootNode(this.div)) == this.div;
		    return result
		  };

ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
		    if (!info || !this.cm.display.view.length) { return }
		    if (info.focus || takeFocus) { this.showPrimarySelection(); }
		    this.showMultipleSelections(info);
		  };

ContentEditableInput.prototype.getSelection = function () {
		    return this.cm.display.wrapper.ownerDocument.getSelection()
		  };

ContentEditableInput.prototype.showPrimarySelection = function () {
		    var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary();
		    var from = prim.from(), to = prim.to();

if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {
		      sel.removeAllRanges();
		      return
		    }

var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
		    var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset);
		    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
		        cmp(minPos(curAnchor, curFocus), from) == 0 &&
		        cmp(maxPos(curAnchor, curFocus), to) == 0)
		      { return }

if (!start || !end) {
		      sel.removeAllRanges();
		      return
		    }

ContentEditableInput.prototype.startGracePeriod = function () {
		      var this$1$1 = this;

clearTimeout(this.gracePeriod);
		    this.gracePeriod = setTimeout(function () {
		      this$1$1.gracePeriod = false;
		      if (this$1$1.selectionChanged())
		        { this$1$1.cm.operation(function () { return this$1$1.cm.curOp.selectionChanged = true; }); }
		    }, 20);
		  };

ContentEditableInput.prototype.showMultipleSelections = function (info) {
		    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
		    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
		  };

ContentEditableInput.prototype.rememberSelection = function () {
		    var sel = this.getSelection();
		    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
		    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
		  };

ContentEditableInput.prototype.selectionInEditor = function () {
		    var sel = this.getSelection();
		    if (!sel.rangeCount) { return false }
		    var node = sel.getRangeAt(0).commonAncestorContainer;
		    return contains(this.div, node)
		  };

ContentEditableInput.prototype.focus = function () {
		    if (this.cm.options.readOnly != "nocursor") {
		      if (!this.selectionInEditor() || activeElt(rootNode(this.div)) != this.div)
		        { this.showSelection(this.prepareSelection(), true); }
		      this.div.focus();
		    }
		  };
		  ContentEditableInput.prototype.blur = function () { this.div.blur(); };
		  ContentEditableInput.prototype.getField = function () { return this.div };

ContentEditableInput.prototype.supportsTouch = function () { return true };

ContentEditableInput.prototype.receivedFocus = function () {
		      var this$1$1 = this;

function poll() {
		      if (input.cm.state.focused) {
		        input.pollSelection();
		        input.polling.set(input.cm.options.pollInterval, poll);
		      }
		    }
		    this.polling.set(this.cm.options.pollInterval, poll);
		  };

ContentEditableInput.prototype.selectionChanged = function () {
		    var sel = this.getSelection();
		    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
		      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
		  };

ContentEditableInput.prototype.pollSelection = function () {
		    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
		    var sel = this.getSelection(), cm = this.cm;
		    // On Android Chrome (version 56, at least), backspacing into an
		    // uneditable block element will put the cursor in that element,
		    // and then, because it's not editable, hide the virtual keyboard.
		    // Because Android doesn't allow us to actually detect backspace
		    // presses in a sane way, this code checks for when that happens
		    // and simulates a backspace press in this case.
		    if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) {
		      this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs});
		      this.blur();
		      this.focus();
		      return
		    }
		    if (this.composing) { return }
		    this.rememberSelection();
		    var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
		    var head = domToPos(cm, sel.focusNode, sel.focusOffset);
		    if (anchor && head) { runInOp(cm, function () {
		      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
		      if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; }
		    }); }
		  };

ContentEditableInput.prototype.pollContent = function () {
		    if (this.readDOMTimeout != null) {
		      clearTimeout(this.readDOMTimeout);
		      this.readDOMTimeout = null;
		    }

var fromIndex, fromLine, fromNode;
		    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
		      fromLine = lineNo(display.view[0].line);
		      fromNode = display.view[0].node;
		    } else {
		      fromLine = lineNo(display.view[fromIndex].line);
		      fromNode = display.view[fromIndex - 1].node.nextSibling;
		    }
		    var toIndex = findViewIndex(cm, to.line);
		    var toLine, toNode;
		    if (toIndex == display.view.length - 1) {
		      toLine = display.viewTo - 1;
		      toNode = display.lineDiv.lastChild;
		    } else {
		      toLine = lineNo(display.view[toIndex + 1].line) - 1;
		      toNode = display.view[toIndex + 1].node.previousSibling;
		    }

if (!fromNode) { return false }
		    var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
		    var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
		    while (newText.length > 1 && oldText.length > 1) {
		      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
		      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
		      else { break }
		    }

newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "");
		    newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "");

var chFrom = Pos(fromLine, cutFront);
		    var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
		    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
		      replaceRange(cm.doc, newText, chFrom, chTo, "+input");
		      return true
		    }
		  };

ContentEditableInput.prototype.ensurePolled = function () {
		    this.forceCompositionEnd();
		  };
		  ContentEditableInput.prototype.reset = function () {
		    this.forceCompositionEnd();
		  };
		  ContentEditableInput.prototype.forceCompositionEnd = function () {
		    if (!this.composing) { return }
		    clearTimeout(this.readDOMTimeout);
		    this.composing = null;
		    this.updateFromDOM();
		    this.div.blur();
		    this.div.focus();
		  };
		  ContentEditableInput.prototype.readFromDOMSoon = function () {
		      var this$1$1 = this;

if (this.readDOMTimeout != null) { return }
		    this.readDOMTimeout = setTimeout(function () {
		      this$1$1.readDOMTimeout = null;
		      if (this$1$1.composing) {
		        if (this$1$1.composing.done) { this$1$1.composing = null; }
		        else { return }
		      }
		      this$1$1.updateFromDOM();
		    }, 80);
		  };

ContentEditableInput.prototype.updateFromDOM = function () {
		      var this$1$1 = this;

if (this.cm.isReadOnly() || !this.pollContent())
		      { runInOp(this.cm, function () { return regChange(this$1$1.cm); }); }
		  };

ContentEditableInput.prototype.setUneditable = function (node) {
		    node.contentEditable = "false";
		  };

ContentEditableInput.prototype.onKeyPress = function (e) {
		    if (e.charCode == 0 || this.composing) { return }
		    e.preventDefault();
		    if (!this.cm.isReadOnly())
		      { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); }
		  };

ContentEditableInput.prototype.readOnlyChanged = function (val) {
		    this.div.contentEditable = String(val != "nocursor");
		  };

ContentEditableInput.prototype.onContextMenu = function () {};
		  ContentEditableInput.prototype.resetPosition = function () {};

ContentEditableInput.prototype.needsContentAttribute = true;

function posToDOM(cm, pos) {
		    var view = findViewForLine(cm, pos.line);
		    if (!view || view.hidden) { return null }
		    var line = getLine(cm.doc, pos.line);
		    var info = mapFromLineView(view, line, pos.line);

var order = getOrder(line, cm.doc.direction), side = "left";
		    if (order) {
		      var partPos = getBidiPartAt(order, pos.ch);
		      side = partPos % 2 ? "right" : "left";
		    }
		    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
		    result.offset = result.collapse == "right" ? result.end : result.start;
		    return result
		  }

function isInGutter(node) {
		    for (var scan = node; scan; scan = scan.parentNode)
		      { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
		    return false
		  }

function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }

if (isBlock) { close(); }
		        for (var i = 0; i < node.childNodes.length; i++)
		          { walk(node.childNodes[i]); }

if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; }
		        if (isBlock) { closing = true; }
		      } else if (node.nodeType == 3) {
		        addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " "));
		      }
		    }
		    for (;;) {
		      walk(from);
		      if (from == to) { break }
		      from = from.nextSibling;
		      extraLinebreak = false;
		    }
		    return text
		  }

// FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
		    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
		      found = find(after, after.firstChild, 0);
		      if (found)
		        { return badPos(Pos(found.line, found.ch - dist), bad) }
		      else
		        { dist += after.textContent.length; }
		    }
		    for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
		      found = find(before, before.firstChild, -1);
		      if (found)
		        { return badPos(Pos(found.line, found.ch + dist$1), bad) }
		      else
		        { dist$1 += before.textContent.length; }
		    }
		  }

// TEXTAREA INPUT STYLE

var TextareaInput = function(cm) {
		    this.cm = cm;
		    // See input.poll and input.reset
		    this.prevInput = "";

// Flag that indicates whether we expect input to appear real soon
		    // now (after some event like 'keypress' or 'input') and are
		    // polling intensively.
		    this.pollingFast = false;
		    // Self-resetting timeout for the poller
		    this.polling = new Delayed();
		    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
		    this.hasSelection = false;
		    this.composing = null;
		    this.resetting = false;
		  };

TextareaInput.prototype.init = function (display) {
		      var this$1$1 = this;

var input = this, cm = this.cm;
		    this.createField(display);
		    var te = this.textarea;

display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild);

// Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
		    if (ios) { te.style.width = "0px"; }

on(te, "input", function () {
		      if (ie && ie_version >= 9 && this$1$1.hasSelection) { this$1$1.hasSelection = null; }
		      input.poll();
		    });

on(te, "paste", function (e) {
		      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }

cm.state.pasteIncoming = +new Date;
		      input.fastPoll();
		    });

on(display.scroller, "paste", function (e) {
		      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
		      if (!te.dispatchEvent) {
		        cm.state.pasteIncoming = +new Date;
		        input.focus();
		        return
		      }

// Pass the `paste` event to the textarea so it's handled by its event listener.
		      var event = new Event("paste");
		      event.clipboardData = e.clipboardData;
		      te.dispatchEvent(event);
		    });

// Prevent normal selection in the editor (we handle our own)
		    on(display.lineSpace, "selectstart", function (e) {
		      if (!eventInWidget(display, e)) { e_preventDefault(e); }
		    });

on(te, "compositionstart", function () {
		      var start = cm.getCursor("from");
		      if (input.composing) { input.composing.range.clear(); }
		      input.composing = {
		        start: start,
		        range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
		      };
		    });
		    on(te, "compositionend", function () {
		      if (input.composing) {
		        input.poll();
		        input.composing.range.clear();
		        input.composing = null;
		      }
		    });
		  };

TextareaInput.prototype.createField = function (_display) {
		    // Wraps and hides input textarea
		    this.wrapper = hiddenTextarea();
		    // The semihidden textarea that is focused when the editor is
		    // focused, and receives input.
		    this.textarea = this.wrapper.firstChild;
		    var opts = this.cm.options;
		    disableBrowserMagic(this.textarea, opts.spellcheck, opts.autocorrect, opts.autocapitalize);
		  };

TextareaInput.prototype.screenReaderLabelChanged = function (label) {
		    // Label for screenreaders, accessibility
		    if(label) {
		      this.textarea.setAttribute('aria-label', label);
		    } else {
		      this.textarea.removeAttribute('aria-label');
		    }
		  };

TextareaInput.prototype.prepareSelection = function () {
		    // Redraw the selection and/or cursor
		    var cm = this.cm, display = cm.display, doc = cm.doc;
		    var result = prepareSelection(cm);

// Move the hidden textarea near the cursor to prevent scrolling artifacts
		    if (cm.options.moveInputWithCursor) {
		      var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
		      var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
		      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
		                                          headPos.top + lineOff.top - wrapOff.top));
		      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
		                                           headPos.left + lineOff.left - wrapOff.left));
		    }

return result
		  };

TextareaInput.prototype.showSelection = function (drawn) {
		    var cm = this.cm, display = cm.display;
		    removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
		    removeChildrenAndAdd(display.selectionDiv, drawn.selection);
		    if (drawn.teTop != null) {
		      this.wrapper.style.top = drawn.teTop + "px";
		      this.wrapper.style.left = drawn.teLeft + "px";
		    }
		  };

// Reset the input to correspond to the selection (or to be empty,
		  // when not typing and nothing is selected)
		  TextareaInput.prototype.reset = function (typing) {
		    if (this.contextMenuPending || this.composing && typing) { return }
		    var cm = this.cm;
		    this.resetting = true;
		    if (cm.somethingSelected()) {
		      this.prevInput = "";
		      var content = cm.getSelection();
		      this.textarea.value = content;
		      if (cm.state.focused) { selectInput(this.textarea); }
		      if (ie && ie_version >= 9) { this.hasSelection = content; }
		    } else if (!typing) {
		      this.prevInput = this.textarea.value = "";
		      if (ie && ie_version >= 9) { this.hasSelection = null; }
		    }
		    this.resetting = false;
		  };

TextareaInput.prototype.getField = function () { return this.textarea };

TextareaInput.prototype.supportsTouch = function () { return false };

TextareaInput.prototype.focus = function () {
		    if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt(rootNode(this.textarea)) != this.textarea)) {
		      try { this.textarea.focus(); }
		      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
		    }
		  };

TextareaInput.prototype.blur = function () { this.textarea.blur(); };

TextareaInput.prototype.resetPosition = function () {
		    this.wrapper.style.top = this.wrapper.style.left = 0;
		  };

TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); };

// Poll for input changes, using the normal rate of polling. This
		  // runs as long as the editor is focused.
		  TextareaInput.prototype.slowPoll = function () {
		      var this$1$1 = this;

if (this.pollingFast) { return }
		    this.polling.set(this.cm.options.pollInterval, function () {
		      this$1$1.poll();
		      if (this$1$1.cm.state.focused) { this$1$1.slowPoll(); }
		    });
		  };

// When an event has just come in that is likely to add or change
		  // something in the input textarea, we poll faster, to ensure that
		  // the change appears on the screen quickly.
		  TextareaInput.prototype.fastPoll = function () {
		    var missed = false, input = this;
		    input.pollingFast = true;
		    function p() {
		      var changed = input.poll();
		      if (!changed && !missed) {missed = true; input.polling.set(60, p);}
		      else {input.pollingFast = false; input.slowPoll();}
		    }
		    input.polling.set(20, p);
		  };

// Read input from the textarea, and update the document to match.
		  // When something is selected, it is present in the textarea, and
		  // selected (unless it is huge, in which case a placeholder is
		  // used). When nothing is selected, the cursor sits after previously
		  // seen text (can be empty), which is stored in prevInput (we must
		  // not reset the textarea when typing, because that breaks IME).
		  TextareaInput.prototype.poll = function () {
		      var this$1$1 = this;

var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
		    // Since this is called a *lot*, try to bail out as cheaply as
		    // possible when it is clear that nothing happened. hasSelection
		    // will be the case when there is a lot of text in the textarea,
		    // in which case reading its value would be expensive.
		    if (this.contextMenuPending || this.resetting || !cm.state.focused ||
		        (hasSelection(input) && !prevInput && !this.composing) ||
		        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
		      { return false }

var text = input.value;
		    // If nothing changed, bail.
		    if (text == prevInput && !cm.somethingSelected()) { return false }
		    // Work around nonsensical selection resetting in IE9/10, and
		    // inexplicable appearance of private area unicode characters on
		    // some key combos in Mac (#2689).
		    if (ie && ie_version >= 9 && this.hasSelection === text ||
		        mac && /[\uf700-\uf7ff]/.test(text)) {
		      cm.display.input.reset();
		      return false
		    }

if (cm.doc.sel == cm.display.selForContextMenu) {
		      var first = text.charCodeAt(0);
		      if (first == 0x200b && !prevInput) { prevInput = "\u200b"; }
		      if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
		    }
		    // Find the part of the input that is actually new
		    var same = 0, l = Math.min(prevInput.length, text.length);
		    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; }

runInOp(cm, function () {
		      applyTextInput(cm, text.slice(same), prevInput.length - same,
		                     null, this$1$1.composing ? "*compose" : null);

// Don't leave long text in the textarea, since it makes further polling slow
		      if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1$1.prevInput = ""; }
		      else { this$1$1.prevInput = text; }

if (this$1$1.composing) {
		        this$1$1.composing.range.clear();
		        this$1$1.composing.range = cm.markText(this$1$1.composing.start, cm.getCursor("to"),
		                                           {className: "CodeMirror-composing"});
		      }
		    });
		    return true
		  };

TextareaInput.prototype.ensurePolled = function () {
		    if (this.pollingFast && this.poll()) { this.pollingFast = false; }
		  };

TextareaInput.prototype.onKeyPress = function () {
		    if (ie && ie_version >= 9) { this.hasSelection = null; }
		    this.fastPoll();
		  };

TextareaInput.prototype.onContextMenu = function (e) {
		    var input = this, cm = input.cm, display = cm.display, te = input.textarea;
		    if (input.contextMenuPending) { input.contextMenuPending(); }
		    var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
		    if (!pos || presto) { return } // Opera is difficult.

// Reset the current text selection only if the click is done outside of the selection
		    // and 'resetSelectionOnContextMenu' option is true.
		    var reset = cm.options.resetSelectionOnContextMenu;
		    if (reset && cm.doc.sel.contains(pos) == -1)
		      { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); }

// Select-all will be greyed out if there's nothing to select, so
		    // this adds a zero-width space so that we can later check whether
		    // it got selected.
		    function prepareSelectAllHack() {
		      if (te.selectionStart != null) {
		        var selected = cm.somethingSelected();
		        var extval = "\u200b" + (selected ? te.value : "");
		        te.value = "\u21da"; // Used to catch context-menu undo
		        te.value = extval;
		        input.prevInput = selected ? "" : "\u200b";
		        te.selectionStart = 1; te.selectionEnd = extval.length;
		        // Re-set this, in case some other handler touched the
		        // selection in the meantime.
		        display.selForContextMenu = cm.doc.sel;
		      }
		    }
		    function rehide() {
		      if (input.contextMenuPending != rehide) { return }
		      input.contextMenuPending = false;
		      input.wrapper.style.cssText = oldWrapperCSS;
		      te.style.cssText = oldCSS;
		      if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); }

// Try to detect the user choosing select-all
		      if (te.selectionStart != null) {
		        if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); }
		        var i = 0, poll = function () {
		          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
		              te.selectionEnd > 0 && input.prevInput == "\u200b") {
		            operation(cm, selectAll)(cm);
		          } else if (i++ < 10) {
		            display.detectingSelectAll = setTimeout(poll, 500);
		          } else {
		            display.selForContextMenu = null;
		            display.input.reset();
		          }
		        };
		        display.detectingSelectAll = setTimeout(poll, 200);
		      }
		    }

if (ie && ie_version >= 9) { prepareSelectAllHack(); }
		    if (captureRightClick) {
		      e_stop(e);
		      var mouseup = function () {
		        off(window, "mouseup", mouseup);
		        setTimeout(rehide, 20);
		      };
		      on(window, "mouseup", mouseup);
		    } else {
		      setTimeout(rehide, 50);
		    }
		  };

TextareaInput.prototype.readOnlyChanged = function (val) {
		    if (!val) { this.reset(); }
		    this.textarea.disabled = val == "nocursor";
		    this.textarea.readOnly = !!val;
		  };

TextareaInput.prototype.setUneditable = function () {};

TextareaInput.prototype.needsContentAttribute = false;

function save() {textarea.value = cm.getValue();}

var realSubmit;
		    if (textarea.form) {
		      on(textarea.form, "submit", save);
		      // Deplorable hack to make the submit method do the right thing.
		      if (!options.leaveSubmitMethodAlone) {
		        var form = textarea.form;
		        realSubmit = form.submit;
		        try {
		          var wrappedSubmit = form.submit = function () {
		            save();
		            form.submit = realSubmit;
		            form.submit();
		            form.submit = wrappedSubmit;
		          };
		        } catch(e) {}
		      }
		    }

options.finishInit = function (cm) {
		      cm.save = save;
		      cm.getTextArea = function () { return textarea; };
		      cm.toTextArea = function () {
		        cm.toTextArea = isNaN; // Prevent this from being ran twice
		        save();
		        textarea.parentNode.removeChild(cm.getWrapperElement());
		        textarea.style.display = "";
		        if (textarea.form) {
		          off(textarea.form, "submit", save);
		          if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function")
		            { textarea.form.submit = realSubmit; }
		        }
		      };
		    };

textarea.style.display = "none";
		    var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
		      options);
		    return cm
		  }

function addLegacyProps(CodeMirror) {
		    CodeMirror.off = off;
		    CodeMirror.on = on;
		    CodeMirror.wheelEventPixels = wheelEventPixels;
		    CodeMirror.Doc = Doc;
		    CodeMirror.splitLines = splitLinesAuto;
		    CodeMirror.countColumn = countColumn;
		    CodeMirror.findColumn = findColumn;
		    CodeMirror.isWordChar = isWordCharBasic;
		    CodeMirror.Pass = Pass;
		    CodeMirror.signal = signal;
		    CodeMirror.Line = Line;
		    CodeMirror.changeEnd = changeEnd;
		    CodeMirror.scrollbarModel = scrollbarModel;
		    CodeMirror.Pos = Pos;
		    CodeMirror.cmpPos = cmp;
		    CodeMirror.modes = modes;
		    CodeMirror.mimeModes = mimeModes;
		    CodeMirror.resolveMode = resolveMode;
		    CodeMirror.getMode = getMode;
		    CodeMirror.modeExtensions = modeExtensions;
		    CodeMirror.extendMode = extendMode;
		    CodeMirror.copyState = copyState;
		    CodeMirror.startState = startState;
		    CodeMirror.innerMode = innerMode;
		    CodeMirror.commands = commands;
		    CodeMirror.keyMap = keyMap;
		    CodeMirror.keyName = keyName;
		    CodeMirror.isModifierKey = isModifierKey;
		    CodeMirror.lookupKey = lookupKey;
		    CodeMirror.normalizeKeyMap = normalizeKeyMap;
		    CodeMirror.StringStream = StringStream;
		    CodeMirror.SharedTextMarker = SharedTextMarker;
		    CodeMirror.TextMarker = TextMarker;
		    CodeMirror.LineWidget = LineWidget;
		    CodeMirror.e_preventDefault = e_preventDefault;
		    CodeMirror.e_stopPropagation = e_stopPropagation;
		    CodeMirror.e_stop = e_stop;
		    CodeMirror.addClass = addClass;
		    CodeMirror.contains = contains;
		    CodeMirror.rmClass = rmClass;
		    CodeMirror.keyNames = keyNames;
		  }

// EDITOR CONSTRUCTOR

defineOptions(CodeMirror);

addEditorMethods(CodeMirror);

// Set up methods on CodeMirror's prototype to redirect to the editor's document.
		  var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
		  for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
		    { CodeMirror.prototype[prop] = (function(method) {
		      return function() {return method.apply(this.doc, arguments)}
		    })(Doc.prototype[prop]); } }

eventMixin(Doc);
		  CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};

// Extra arguments are stored as the mode's dependencies, which is
		  // used by (legacy) mechanisms like loadmode.js to automatically
		  // load a mode. (Preferred mechanism is the require/define calls.)
		  CodeMirror.defineMode = function(name/*, mode, …*/) {
		    if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; }
		    defineMode.apply(this, arguments);
		  };

CodeMirror.defineMIME = defineMIME;

// Minimal default mode.
		  CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
		  CodeMirror.defineMIME("text/plain", "null");

// EXTENSIONS

CodeMirror.defineExtension = function (name, func) {
		    CodeMirror.prototype[name] = func;
		  };
		  CodeMirror.defineDocExtension = function (name, func) {
		    Doc.prototype[name] = func;
		  };

CodeMirror.fromTextArea = fromTextArea;

addLegacyProps(CodeMirror);

CodeMirror.version = "5.65.16";

return CodeMirror;

}))); 
	} (codemirror));
	return codemirror.exports;
}
/* Injected with object hook! */

var codemirrorExports = requireCodemirror();
const CodeMirror = /*@__PURE__*/getDefaultExportFromCjs(codemirrorExports);
/* Injected with object hook! */

var javascript = {exports: {}};/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror());
	})(function(CodeMirror) {

CodeMirror.defineMode("javascript", function(config, parserConfig) {
	  var indentUnit = config.indentUnit;
	  var statementIndent = parserConfig.statementIndent;
	  var jsonldMode = parserConfig.jsonld;
	  var jsonMode = parserConfig.json || jsonldMode;
	  var trackScope = parserConfig.trackScope !== false;
	  var isTS = parserConfig.typescript;
	  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;

// Tokenizer

return {
	      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
	      "return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C,
	      "debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"),
	      "function": kw("function"), "catch": kw("catch"),
	      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
	      "in": operator, "typeof": operator, "instanceof": operator,
	      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
	      "this": kw("this"), "class": kw("class"), "super": kw("atom"),
	      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
	      "await": C
	    };
	  }();

// Used as scratch variables to communicate multiple values without
	  // consing up tons of objects.
	  var type, content;
	  function ret(tp, style, cont) {
	    type = tp; content = cont;
	    return style;
	  }
	  function tokenBase(stream, state) {
	    var ch = stream.next();
	    if (ch == '"' || ch == "'") {
	      state.tokenize = tokenString(ch);
	      return state.tokenize(stream, state);
	    } else if (ch == "." && stream.match(/^\d[\d_]*(?:[eE][+\-]?[\d_]+)?/)) {
	      return ret("number", "number");
	    } else if (ch == "." && stream.match("..")) {
	      return ret("spread", "meta");
	    } else if (/[\[\]{},;\:\.]/.test(ch)) {
	      return ret(ch);
	    } else if (ch == "=" && stream.eat(">")) {
	      return ret("=>", "operator");
	    } else if (ch == "0" && stream.match(/^(?:x[\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) {
	      return ret("number", "number");
	    } else if (/\d/.test(ch)) {
	      stream.match(/^[\d_]*(?:n|(?:\.[\d_]*)?(?:[eE][+\-]?[\d_]+)?)?/);
	      return ret("number", "number");
	    } else if (ch == "/") {
	      if (stream.eat("*")) {
	        state.tokenize = tokenComment;
	        return tokenComment(stream, state);
	      } else if (stream.eat("/")) {
	        stream.skipToEnd();
	        return ret("comment", "comment");
	      } else if (expressionAllowed(stream, state, 1)) {
	        readRegexp(stream);
	        stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/);
	        return ret("regexp", "string-2");
	      } else {
	        stream.eat("=");
	        return ret("operator", "operator", stream.current());
	      }
	    } else if (ch == "`") {
	      state.tokenize = tokenQuasi;
	      return tokenQuasi(stream, state);
	    } else if (ch == "#" && stream.peek() == "!") {
	      stream.skipToEnd();
	      return ret("meta", "meta");
	    } else if (ch == "#" && stream.eatWhile(wordRE)) {
	      return ret("variable", "property")
	    } else if (ch == "<" && stream.match("!--") ||
	               (ch == "-" && stream.match("->") && !/\S/.test(stream.string.slice(0, stream.start)))) {
	      stream.skipToEnd();
	      return ret("comment", "comment")
	    } else if (isOperatorChar.test(ch)) {
	      if (ch != ">" || !state.lexical || state.lexical.type != ">") {
	        if (stream.eat("=")) {
	          if (ch == "!" || ch == "=") stream.eat("=");
	        } else if (/[<>*+\-|&?]/.test(ch)) {
	          stream.eat(ch);
	          if (ch == ">") stream.eat(ch);
	        }
	      }
	      if (ch == "?" && stream.eat(".")) return ret(".")
	      return ret("operator", "operator", stream.current());
	    } else if (wordRE.test(ch)) {
	      stream.eatWhile(wordRE);
	      var word = stream.current();
	      if (state.lastType != ".") {
	        if (keywords.propertyIsEnumerable(word)) {
	          var kw = keywords[word];
	          return ret(kw.type, kw.style, word)
	        }
	        if (word == "async" && stream.match(/^(\s|\/\*([^*]|\*(?!\/))*?\*\/)*[\[\(\w]/, false))
	          return ret("async", "keyword", word)
	      }
	      return ret("variable", "variable", word)
	    }
	  }

var brackets = "([{}])";
	  // This is a crude lookahead trick to try and notice that we're
	  // parsing the argument patterns for a fat-arrow function before we
	  // actually hit the arrow token. It only works if the arrow is on
	  // the same line as the arguments and there's no strange noise
	  // (comments) in between. Fallback is to only notice when we hit the
	  // arrow, and not declare the arguments as locals for the arrow
	  // body.
	  function findFatArrow(stream, state) {
	    if (state.fatArrowAt) state.fatArrowAt = null;
	    var arrow = stream.string.indexOf("=>", stream.start);
	    if (arrow < 0) return;

if (isTS) { // Try to skip TypeScript return type declarations after the arguments
	      var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow));
	      if (m) arrow = m.index;
	    }

// Parser

var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true,
	                     "regexp": true, "this": true, "import": true, "jsonld-keyword": true};

function JSLexical(indented, column, type, align, prev, info) {
	    this.indented = indented;
	    this.column = column;
	    this.type = type;
	    this.prev = prev;
	    this.info = info;
	    if (align != null) this.align = align;
	  }

function inScope(state, varname) {
	    if (!trackScope) return false
	    for (var v = state.localVars; v; v = v.next)
	      if (v.name == varname) return true;
	    for (var cx = state.context; cx; cx = cx.prev) {
	      for (var v = cx.vars; v; v = v.next)
	        if (v.name == varname) return true;
	    }
	  }

function parseJS(state, style, type, content, stream) {
	    var cc = state.cc;
	    // Communicate our context to the combinators.
	    // (Less wasteful than consing up a hundred closures on every call.)
	    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;

if (!state.lexical.hasOwnProperty("align"))
	      state.lexical.align = true;

while(true) {
	      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
	      if (combinator(type, content)) {
	        while(cc.length && cc[cc.length - 1].lex)
	          cc.pop()();
	        if (cx.marked) return cx.marked;
	        if (type == "variable" && inScope(state, content)) return "variable-2";
	        return style;
	      }
	    }
	  }

// Combinator utils

function isModifier(name) {
	    return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly"
	  }

// Combinators

function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block; }
	  function Var(name, next) { this.name = name; this.next = next; }

function expect(wanted) {
	    function exp(type) {
	      if (type == wanted) return cont();
	      else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass();
	      else return cont(exp);
	    }	    return exp;
	  }

function isContinuedStatement(state, textAfter) {
	    return state.lastType == "operator" || state.lastType == "," ||
	      isOperatorChar.test(textAfter.charAt(0)) ||
	      /[,.]/.test(textAfter.charAt(0));
	  }

function expressionAllowed(stream, state, backUp) {
	    return state.tokenize == tokenBase &&
	      /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
	      (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
	  }

// Interface

return {
	    startState: function(basecolumn) {
	      var state = {
	        tokenize: tokenBase,
	        lastType: "sof",
	        cc: [],
	        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
	        localVars: parserConfig.localVars,
	        context: parserConfig.localVars && new Context(null, null, false),
	        indented: basecolumn || 0
	      };
	      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
	        state.globalVars = parserConfig.globalVars;
	      return state;
	    },

token: function(stream, state) {
	      if (stream.sol()) {
	        if (!state.lexical.hasOwnProperty("align"))
	          state.lexical.align = false;
	        state.indented = stream.indentation();
	        findFatArrow(stream, state);
	      }
	      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
	      var style = state.tokenize(stream, state);
	      if (type == "comment") return style;
	      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
	      return parseJS(state, style, type, content, stream);
	    },

indent: function(state, textAfter) {
	      if (state.tokenize == tokenComment || state.tokenize == tokenQuasi) return CodeMirror.Pass;
	      if (state.tokenize != tokenBase) return 0;
	      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top;
	      // Kludge to prevent 'maybelse' from blocking lexical scope pops
	      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
	        var c = state.cc[i];
	        if (c == poplex) lexical = lexical.prev;
	        else if (c != maybeelse && c != popcontext) break;
	      }
	      while ((lexical.type == "stat" || lexical.type == "form") &&
	             (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
	                                   (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
	                                   !/^[,\.=+\-*:?[\(]/.test(textAfter))))
	        lexical = lexical.prev;
	      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
	        lexical = lexical.prev;
	      var type = lexical.type, closing = firstChar == type;

if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0);
	      else if (type == "form" && firstChar == "{") return lexical.indented;
	      else if (type == "form") return lexical.indented + indentUnit;
	      else if (type == "stat")
	        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
	      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
	        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
	      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
	      else return lexical.indented + (closing ? 0 : indentUnit);
	    },

electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
	    blockCommentStart: jsonMode ? null : "/*",
	    blockCommentEnd: jsonMode ? null : "*/",
	    blockCommentContinue: jsonMode ? null : " * ",
	    lineComment: jsonMode ? null : "//",
	    fold: "brace",
	    closeBrackets: "()[]{}''\"\"``",

helperType: jsonMode ? "json" : "javascript",
	    jsonldMode: jsonldMode,
	    jsonMode: jsonMode,

expressionAllowed: expressionAllowed,

skipExpression: function(state) {
	      parseJS(state, "atom", "atom", "true", new CodeMirror.StringStream("", 2, null));
	    }
	  };
	});

CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);

CodeMirror.defineMIME("text/javascript", "javascript");
	CodeMirror.defineMIME("text/ecmascript", "javascript");
	CodeMirror.defineMIME("application/javascript", "javascript");
	CodeMirror.defineMIME("application/x-javascript", "javascript");
	CodeMirror.defineMIME("application/ecmascript", "javascript");
	CodeMirror.defineMIME("application/json", { name: "javascript", json: true });
	CodeMirror.defineMIME("application/x-json", { name: "javascript", json: true });
	CodeMirror.defineMIME("application/manifest+json", { name: "javascript", json: true });
	CodeMirror.defineMIME("application/ld+json", { name: "javascript", jsonld: true });
	CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
	CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });

}); 
} ());

var javascriptExports = javascript.exports;
/* Injected with object hook! */

var css = {exports: {}};/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror());
	})(function(CodeMirror) {

CodeMirror.defineMode("css", function(config, parserConfig) {
	  var inline = parserConfig.inline;
	  if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");

var indentUnit = config.indentUnit,
	      tokenHooks = parserConfig.tokenHooks,
	      documentTypes = parserConfig.documentTypes || {},
	      mediaTypes = parserConfig.mediaTypes || {},
	      mediaFeatures = parserConfig.mediaFeatures || {},
	      mediaValueKeywords = parserConfig.mediaValueKeywords || {},
	      propertyKeywords = parserConfig.propertyKeywords || {},
	      nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
	      fontProperties = parserConfig.fontProperties || {},
	      counterDescriptors = parserConfig.counterDescriptors || {},
	      colorKeywords = parserConfig.colorKeywords || {},
	      valueKeywords = parserConfig.valueKeywords || {},
	      allowNested = parserConfig.allowNested,
	      lineComment = parserConfig.lineComment,
	      supportsAtComponent = parserConfig.supportsAtComponent === true,
	      highlightNonStandardPropertyKeywords = config.highlightNonStandardPropertyKeywords !== false;

var type, override;
	  function ret(style, tp) { type = tp; return style; }

// Tokenizers

function tokenParenthesized(stream, state) {
	    stream.next(); // Must be '('
	    if (!stream.match(/^\s*[\"\')]/, false))
	      state.tokenize = tokenString(")");
	    else
	      state.tokenize = null;
	    return ret(null, "(");
	  }

// Context management

function Context(type, indent, prev) {
	    this.type = type;
	    this.indent = indent;
	    this.prev = prev;
	  }

function pushContext(state, stream, type, indent) {
	    state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
	    return type;
	  }

function popContext(state) {
	    if (state.context.prev)
	      state.context = state.context.prev;
	    return state.context.type;
	  }

function pass(type, stream, state) {
	    return states[state.context.type](type, stream, state);
	  }
	  function popAndPass(type, stream, state, n) {
	    for (var i = n || 1; i > 0; i--)
	      state.context = state.context.prev;
	    return pass(type, stream, state);
	  }

// Parser

function wordAsValue(stream) {
	    var word = stream.current().toLowerCase();
	    if (valueKeywords.hasOwnProperty(word))
	      override = "atom";
	    else if (colorKeywords.hasOwnProperty(word))
	      override = "keyword";
	    else
	      override = "variable";
	  }

var states = {};

states.top = function(type, stream, state) {
	    if (type == "{") {
	      return pushContext(state, stream, "block");
	    } else if (type == "}" && state.context.prev) {
	      return popContext(state);
	    } else if (supportsAtComponent && /@component/i.test(type)) {
	      return pushContext(state, stream, "atComponentBlock");
	    } else if (/^@(-moz-)?document$/i.test(type)) {
	      return pushContext(state, stream, "documentTypes");
	    } else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) {
	      return pushContext(state, stream, "atBlock");
	    } else if (/^@(font-face|counter-style)/i.test(type)) {
	      state.stateArg = type;
	      return "restricted_atBlock_before";
	    } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) {
	      return "keyframes";
	    } else if (type && type.charAt(0) == "@") {
	      return pushContext(state, stream, "at");
	    } else if (type == "hash") {
	      override = "builtin";
	    } else if (type == "word") {
	      override = "tag";
	    } else if (type == "variable-definition") {
	      return "maybeprop";
	    } else if (type == "interpolation") {
	      return pushContext(state, stream, "interpolation");
	    } else if (type == ":") {
	      return "pseudo";
	    } else if (allowNested && type == "(") {
	      return pushContext(state, stream, "parens");
	    }
	    return state.context.type;
	  };

states.block = function(type, stream, state) {
	    if (type == "word") {
	      var word = stream.current().toLowerCase();
	      if (propertyKeywords.hasOwnProperty(word)) {
	        override = "property";
	        return "maybeprop";
	      } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
	        override = highlightNonStandardPropertyKeywords ? "string-2" : "property";
	        return "maybeprop";
	      } else if (allowNested) {
	        override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
	        return "block";
	      } else {
	        override += " error";
	        return "maybeprop";
	      }
	    } else if (type == "meta") {
	      return "block";
	    } else if (!allowNested && (type == "hash" || type == "qualifier")) {
	      override = "error";
	      return "block";
	    } else {
	      return states.top(type, stream, state);
	    }
	  };

states.maybeprop = function(type, stream, state) {
	    if (type == ":") return pushContext(state, stream, "prop");
	    return pass(type, stream, state);
	  };

states.prop = function(type, stream, state) {
	    if (type == ";") return popContext(state);
	    if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
	    if (type == "}" || type == "{") return popAndPass(type, stream, state);
	    if (type == "(") return pushContext(state, stream, "parens");

if (type == "hash" && !/^#([0-9a-fA-F]{3,4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})$/.test(stream.current())) {
	      override += " error";
	    } else if (type == "word") {
	      wordAsValue(stream);
	    } else if (type == "interpolation") {
	      return pushContext(state, stream, "interpolation");
	    }
	    return "prop";
	  };

states.propBlock = function(type, _stream, state) {
	    if (type == "}") return popContext(state);
	    if (type == "word") { override = "property"; return "maybeprop"; }
	    return state.context.type;
	  };

states.parens = function(type, stream, state) {
	    if (type == "{" || type == "}") return popAndPass(type, stream, state);
	    if (type == ")") return popContext(state);
	    if (type == "(") return pushContext(state, stream, "parens");
	    if (type == "interpolation") return pushContext(state, stream, "interpolation");
	    if (type == "word") wordAsValue(stream);
	    return "parens";
	  };

states.pseudo = function(type, stream, state) {
	    if (type == "meta") return "pseudo";

if (type == "word") {
	      override = "variable-3";
	      return state.context.type;
	    }
	    return pass(type, stream, state);
	  };

states.documentTypes = function(type, stream, state) {
	    if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
	      override = "tag";
	      return state.context.type;
	    } else {
	      return states.atBlock(type, stream, state);
	    }
	  };

states.atBlock = function(type, stream, state) {
	    if (type == "(") return pushContext(state, stream, "atBlock_parens");
	    if (type == "}" || type == ";") return popAndPass(type, stream, state);
	    if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");

if (type == "interpolation") return pushContext(state, stream, "interpolation");

if (type == "word") {
	      var word = stream.current().toLowerCase();
	      if (word == "only" || word == "not" || word == "and" || word == "or")
	        override = "keyword";
	      else if (mediaTypes.hasOwnProperty(word))
	        override = "attribute";
	      else if (mediaFeatures.hasOwnProperty(word))
	        override = "property";
	      else if (mediaValueKeywords.hasOwnProperty(word))
	        override = "keyword";
	      else if (propertyKeywords.hasOwnProperty(word))
	        override = "property";
	      else if (nonStandardPropertyKeywords.hasOwnProperty(word))
	        override = highlightNonStandardPropertyKeywords ? "string-2" : "property";
	      else if (valueKeywords.hasOwnProperty(word))
	        override = "atom";
	      else if (colorKeywords.hasOwnProperty(word))
	        override = "keyword";
	      else
	        override = "error";
	    }
	    return state.context.type;
	  };

states.atComponentBlock = function(type, stream, state) {
	    if (type == "}")
	      return popAndPass(type, stream, state);
	    if (type == "{")
	      return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
	    if (type == "word")
	      override = "error";
	    return state.context.type;
	  };

states.atBlock_parens = function(type, stream, state) {
	    if (type == ")") return popContext(state);
	    if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
	    return states.atBlock(type, stream, state);
	  };

states.restricted_atBlock_before = function(type, stream, state) {
	    if (type == "{")
	      return pushContext(state, stream, "restricted_atBlock");
	    if (type == "word" && state.stateArg == "@counter-style") {
	      override = "variable";
	      return "restricted_atBlock_before";
	    }
	    return pass(type, stream, state);
	  };

states.restricted_atBlock = function(type, stream, state) {
	    if (type == "}") {
	      state.stateArg = null;
	      return popContext(state);
	    }
	    if (type == "word") {
	      if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
	          (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
	        override = "error";
	      else
	        override = "property";
	      return "maybeprop";
	    }
	    return "restricted_atBlock";
	  };

states.keyframes = function(type, stream, state) {
	    if (type == "word") { override = "variable"; return "keyframes"; }
	    if (type == "{") return pushContext(state, stream, "top");
	    return pass(type, stream, state);
	  };

states.at = function(type, stream, state) {
	    if (type == ";") return popContext(state);
	    if (type == "{" || type == "}") return popAndPass(type, stream, state);
	    if (type == "word") override = "tag";
	    else if (type == "hash") override = "builtin";
	    return "at";
	  };

states.interpolation = function(type, stream, state) {
	    if (type == "}") return popContext(state);
	    if (type == "{" || type == ";") return popAndPass(type, stream, state);
	    if (type == "word") override = "variable";
	    else if (type != "variable" && type != "(" && type != ")") override = "error";
	    return "interpolation";
	  };

return {
	    startState: function(base) {
	      return {tokenize: null,
	              state: inline ? "block" : "top",
	              stateArg: null,
	              context: new Context(inline ? "block" : "top", base || 0, null)};
	    },

token: function(stream, state) {
	      if (!state.tokenize && stream.eatSpace()) return null;
	      var style = (state.tokenize || tokenBase)(stream, state);
	      if (style && typeof style == "object") {
	        type = style[1];
	        style = style[0];
	      }
	      override = style;
	      if (type != "comment")
	        state.state = states[state.state](type, stream, state);
	      return override;
	    },

indent: function(state, textAfter) {
	      var cx = state.context, ch = textAfter && textAfter.charAt(0);
	      var indent = cx.indent;
	      if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
	      if (cx.prev) {
	        if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
	                          cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
	          // Resume indentation from parent context.
	          cx = cx.prev;
	          indent = cx.indent;
	        } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
	            ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
	          // Dedent relative to current context.
	          indent = Math.max(0, cx.indent - indentUnit);
	        }
	      }
	      return indent;
	    },

electricChars: "}",
	    blockCommentStart: "/*",
	    blockCommentEnd: "*/",
	    blockCommentContinue: " * ",
	    lineComment: lineComment,
	    fold: "brace"
	  };
	});

function keySet(array) {
	    var keys = {};
	    for (var i = 0; i < array.length; ++i) {
	      keys[array[i].toLowerCase()] = true;
	    }
	    return keys;
	  }

var documentTypes_ = [
	    "domain", "regexp", "url", "url-prefix"
	  ], documentTypes = keySet(documentTypes_);

var mediaTypes_ = [
	    "all", "aural", "braille", "handheld", "print", "projection", "screen",
	    "tty", "tv", "embossed"
	  ], mediaTypes = keySet(mediaTypes_);

var mediaFeatures_ = [
	    "width", "min-width", "max-width", "height", "min-height", "max-height",
	    "device-width", "min-device-width", "max-device-width", "device-height",
	    "min-device-height", "max-device-height", "aspect-ratio",
	    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
	    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
	    "max-color", "color-index", "min-color-index", "max-color-index",
	    "monochrome", "min-monochrome", "max-monochrome", "resolution",
	    "min-resolution", "max-resolution", "scan", "grid", "orientation",
	    "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
	    "pointer", "any-pointer", "hover", "any-hover", "prefers-color-scheme",
	    "dynamic-range", "video-dynamic-range"
	  ], mediaFeatures = keySet(mediaFeatures_);

var mediaValueKeywords_ = [
	    "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
	    "interlace", "progressive",
	    "dark", "light",
	    "standard", "high"
	  ], mediaValueKeywords = keySet(mediaValueKeywords_);

var propertyKeywords_ = [
	    "align-content", "align-items", "align-self", "alignment-adjust",
	    "alignment-baseline", "all", "anchor-point", "animation", "animation-delay",
	    "animation-direction", "animation-duration", "animation-fill-mode",
	    "animation-iteration-count", "animation-name", "animation-play-state",
	    "animation-timing-function", "appearance", "azimuth", "backdrop-filter",
	    "backface-visibility", "background", "background-attachment",
	    "background-blend-mode", "background-clip", "background-color",
	    "background-image", "background-origin", "background-position",
	    "background-position-x", "background-position-y", "background-repeat",
	    "background-size", "baseline-shift", "binding", "bleed", "block-size",
	    "bookmark-label", "bookmark-level", "bookmark-state", "bookmark-target",
	    "border", "border-bottom", "border-bottom-color", "border-bottom-left-radius",
	    "border-bottom-right-radius", "border-bottom-style", "border-bottom-width",
	    "border-collapse", "border-color", "border-image", "border-image-outset",
	    "border-image-repeat", "border-image-slice", "border-image-source",
	    "border-image-width", "border-left", "border-left-color", "border-left-style",
	    "border-left-width", "border-radius", "border-right", "border-right-color",
	    "border-right-style", "border-right-width", "border-spacing", "border-style",
	    "border-top", "border-top-color", "border-top-left-radius",
	    "border-top-right-radius", "border-top-style", "border-top-width",
	    "border-width", "bottom", "box-decoration-break", "box-shadow", "box-sizing",
	    "break-after", "break-before", "break-inside", "caption-side", "caret-color",
	    "clear", "clip", "color", "color-profile", "column-count", "column-fill",
	    "column-gap", "column-rule", "column-rule-color", "column-rule-style",
	    "column-rule-width", "column-span", "column-width", "columns", "contain",
	    "content", "counter-increment", "counter-reset", "crop", "cue", "cue-after",
	    "cue-before", "cursor", "direction", "display", "dominant-baseline",
	    "drop-initial-after-adjust", "drop-initial-after-align",
	    "drop-initial-before-adjust", "drop-initial-before-align", "drop-initial-size",
	    "drop-initial-value", "elevation", "empty-cells", "fit", "fit-content", "fit-position",
	    "flex", "flex-basis", "flex-direction", "flex-flow", "flex-grow",
	    "flex-shrink", "flex-wrap", "float", "float-offset", "flow-from", "flow-into",
	    "font", "font-family", "font-feature-settings", "font-kerning",
	    "font-language-override", "font-optical-sizing", "font-size",
	    "font-size-adjust", "font-stretch", "font-style", "font-synthesis",
	    "font-variant", "font-variant-alternates", "font-variant-caps",
	    "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric",
	    "font-variant-position", "font-variation-settings", "font-weight", "gap",
	    "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", "grid-auto-rows",
	    "grid-column", "grid-column-end", "grid-column-gap", "grid-column-start",
	    "grid-gap", "grid-row", "grid-row-end", "grid-row-gap", "grid-row-start",
	    "grid-template", "grid-template-areas", "grid-template-columns",
	    "grid-template-rows", "hanging-punctuation", "height", "hyphens", "icon",
	    "image-orientation", "image-rendering", "image-resolution", "inline-box-align",
	    "inset", "inset-block", "inset-block-end", "inset-block-start", "inset-inline",
	    "inset-inline-end", "inset-inline-start", "isolation", "justify-content",
	    "justify-items", "justify-self", "left", "letter-spacing", "line-break",
	    "line-height", "line-height-step", "line-stacking", "line-stacking-ruby",
	    "line-stacking-shift", "line-stacking-strategy", "list-style",
	    "list-style-image", "list-style-position", "list-style-type", "margin",
	    "margin-bottom", "margin-left", "margin-right", "margin-top", "marks",
	    "marquee-direction", "marquee-loop", "marquee-play-count", "marquee-speed",
	    "marquee-style", "mask-clip", "mask-composite", "mask-image", "mask-mode",
	    "mask-origin", "mask-position", "mask-repeat", "mask-size","mask-type",
	    "max-block-size", "max-height", "max-inline-size",
	    "max-width", "min-block-size", "min-height", "min-inline-size", "min-width",
	    "mix-blend-mode", "move-to", "nav-down", "nav-index", "nav-left", "nav-right",
	    "nav-up", "object-fit", "object-position", "offset", "offset-anchor",
	    "offset-distance", "offset-path", "offset-position", "offset-rotate",
	    "opacity", "order", "orphans", "outline", "outline-color", "outline-offset",
	    "outline-style", "outline-width", "overflow", "overflow-style",
	    "overflow-wrap", "overflow-x", "overflow-y", "padding", "padding-bottom",
	    "padding-left", "padding-right", "padding-top", "page", "page-break-after",
	    "page-break-before", "page-break-inside", "page-policy", "pause",
	    "pause-after", "pause-before", "perspective", "perspective-origin", "pitch",
	    "pitch-range", "place-content", "place-items", "place-self", "play-during",
	    "position", "presentation-level", "punctuation-trim", "quotes",
	    "region-break-after", "region-break-before", "region-break-inside",
	    "region-fragment", "rendering-intent", "resize", "rest", "rest-after",
	    "rest-before", "richness", "right", "rotate", "rotation", "rotation-point",
	    "row-gap", "ruby-align", "ruby-overhang", "ruby-position", "ruby-span",
	    "scale", "scroll-behavior", "scroll-margin", "scroll-margin-block",
	    "scroll-margin-block-end", "scroll-margin-block-start", "scroll-margin-bottom",
	    "scroll-margin-inline", "scroll-margin-inline-end",
	    "scroll-margin-inline-start", "scroll-margin-left", "scroll-margin-right",
	    "scroll-margin-top", "scroll-padding", "scroll-padding-block",
	    "scroll-padding-block-end", "scroll-padding-block-start",
	    "scroll-padding-bottom", "scroll-padding-inline", "scroll-padding-inline-end",
	    "scroll-padding-inline-start", "scroll-padding-left", "scroll-padding-right",
	    "scroll-padding-top", "scroll-snap-align", "scroll-snap-type",
	    "shape-image-threshold", "shape-inside", "shape-margin", "shape-outside",
	    "size", "speak", "speak-as", "speak-header", "speak-numeral",
	    "speak-punctuation", "speech-rate", "stress", "string-set", "tab-size",
	    "table-layout", "target", "target-name", "target-new", "target-position",
	    "text-align", "text-align-last", "text-combine-upright", "text-decoration",
	    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
	    "text-decoration-skip-ink", "text-decoration-style", "text-emphasis",
	    "text-emphasis-color", "text-emphasis-position", "text-emphasis-style",
	    "text-height", "text-indent", "text-justify", "text-orientation",
	    "text-outline", "text-overflow", "text-rendering", "text-shadow",
	    "text-size-adjust", "text-space-collapse", "text-transform",
	    "text-underline-position", "text-wrap", "top", "touch-action", "transform", "transform-origin",
	    "transform-style", "transition", "transition-delay", "transition-duration",
	    "transition-property", "transition-timing-function", "translate",
	    "unicode-bidi", "user-select", "vertical-align", "visibility", "voice-balance",
	    "voice-duration", "voice-family", "voice-pitch", "voice-range", "voice-rate",
	    "voice-stress", "voice-volume", "volume", "white-space", "widows", "width",
	    "will-change", "word-break", "word-spacing", "word-wrap", "writing-mode", "z-index",
	    // SVG-specific
	    "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
	    "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
	    "color-interpolation", "color-interpolation-filters",
	    "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
	    "marker", "marker-end", "marker-mid", "marker-start", "paint-order", "shape-rendering", "stroke",
	    "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
	    "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
	    "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
	    "glyph-orientation-vertical", "text-anchor", "writing-mode",
	  ], propertyKeywords = keySet(propertyKeywords_);

var nonStandardPropertyKeywords_ = [
	    "accent-color", "aspect-ratio", "border-block", "border-block-color", "border-block-end",
	    "border-block-end-color", "border-block-end-style", "border-block-end-width",
	    "border-block-start", "border-block-start-color", "border-block-start-style",
	    "border-block-start-width", "border-block-style", "border-block-width",
	    "border-inline", "border-inline-color", "border-inline-end",
	    "border-inline-end-color", "border-inline-end-style",
	    "border-inline-end-width", "border-inline-start", "border-inline-start-color",
	    "border-inline-start-style", "border-inline-start-width",
	    "border-inline-style", "border-inline-width", "content-visibility", "margin-block",
	    "margin-block-end", "margin-block-start", "margin-inline", "margin-inline-end",
	    "margin-inline-start", "overflow-anchor", "overscroll-behavior", "padding-block", "padding-block-end",
	    "padding-block-start", "padding-inline", "padding-inline-end",
	    "padding-inline-start", "scroll-snap-stop", "scrollbar-3d-light-color",
	    "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
	    "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
	    "scrollbar-track-color", "searchfield-cancel-button", "searchfield-decoration",
	    "searchfield-results-button", "searchfield-results-decoration", "shape-inside", "zoom"
	  ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);

var fontProperties_ = [
	    "font-display", "font-family", "src", "unicode-range", "font-variant",
	     "font-feature-settings", "font-stretch", "font-weight", "font-style"
	  ], fontProperties = keySet(fontProperties_);

var counterDescriptors_ = [
	    "additive-symbols", "fallback", "negative", "pad", "prefix", "range",
	    "speak-as", "suffix", "symbols", "system"
	  ], counterDescriptors = keySet(counterDescriptors_);

var colorKeywords_ = [
	    "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
	    "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
	    "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
	    "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
	    "darkgray", "darkgreen", "darkgrey", "darkkhaki", "darkmagenta", "darkolivegreen",
	    "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
	    "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet",
	    "deeppink", "deepskyblue", "dimgray", "dimgrey", "dodgerblue", "firebrick",
	    "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
	    "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
	    "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
	    "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
	    "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightgrey", "lightpink",
	    "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey",
	    "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
	    "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
	    "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
	    "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
	    "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
	    "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
	    "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
	    "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
	    "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
	    "slateblue", "slategray", "slategrey", "snow", "springgreen", "steelblue", "tan",
	    "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
	    "whitesmoke", "yellow", "yellowgreen"
	  ], colorKeywords = keySet(colorKeywords_);

var valueKeywords_ = [
	    "above", "absolute", "activeborder", "additive", "activecaption", "afar",
	    "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
	    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
	    "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page",
	    "avoid-region", "axis-pan", "background", "backwards", "baseline", "below", "bidi-override", "binary",
	    "bengali", "blink", "block", "block-axis", "blur", "bold", "bolder", "border", "border-box",
	    "both", "bottom", "break", "break-all", "break-word", "brightness", "bullets", "button",
	    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
	    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
	    "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
	    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
	    "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse",
	    "compact", "condensed", "conic-gradient", "contain", "content", "contents",
	    "content-box", "context-menu", "continuous", "contrast", "copy", "counter", "counters", "cover", "crop",
	    "cross", "crosshair", "cubic-bezier", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal",
	    "decimal-leading-zero", "default", "default-button", "dense", "destination-atop",
	    "destination-in", "destination-out", "destination-over", "devanagari", "difference",
	    "disc", "discard", "disclosure-closed", "disclosure-open", "document",
	    "dot-dash", "dot-dot-dash",
	    "dotted", "double", "down", "drop-shadow", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
	    "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
	    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
	    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
	    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
	    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
	    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
	    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
	    "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed",
	    "extra-expanded", "fantasy", "fast", "fill", "fill-box", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
	    "forwards", "from", "geometricPrecision", "georgian", "grayscale", "graytext", "grid", "groove",
	    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew",
	    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
	    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "hue-rotate", "icon", "ignore",
	    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
	    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
	    "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert",
	    "italic", "japanese-formal", "japanese-informal", "justify", "kannada",
	    "katakana", "katakana-iroha", "keep-all", "khmer",
	    "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
	    "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten",
	    "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
	    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
	    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
	    "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "manipulation", "match", "matrix", "matrix3d",
	    "media-play-button", "media-slider", "media-sliderthumb",
	    "media-volume-slider", "media-volume-sliderthumb", "medium",
	    "menu", "menulist", "menulist-button",
	    "menutext", "message-box", "middle", "min-intrinsic",
	    "mix", "mongolian", "monospace", "move", "multiple", "multiple_mask_images", "multiply", "myanmar", "n-resize",
	    "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
	    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
	    "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote",
	    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
	    "outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
	    "painted", "page", "paused", "persian", "perspective", "pinch-zoom", "plus-darker", "plus-lighter",
	    "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
	    "progress", "push-button", "radial-gradient", "radio", "read-only",
	    "read-write", "read-write-plaintext-only", "rectangle", "region",
	    "relative", "repeat", "repeating-linear-gradient", "repeating-radial-gradient",
	    "repeating-conic-gradient", "repeat-x", "repeat-y", "reset", "reverse",
	    "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
	    "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
	    "s-resize", "sans-serif", "saturate", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen",
	    "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield",
	    "searchfield-cancel-button", "searchfield-decoration",
	    "searchfield-results-button", "searchfield-results-decoration", "self-start", "self-end",
	    "semi-condensed", "semi-expanded", "separate", "sepia", "serif", "show", "sidama",
	    "simp-chinese-formal", "simp-chinese-informal", "single",
	    "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
	    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
	    "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali",
	    "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "space-evenly", "spell-out", "square",
	    "square-button", "start", "static", "status-bar", "stretch", "stroke", "stroke-box", "sub",
	    "subpixel-antialiased", "svg_masks", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table",
	    "table-caption", "table-cell", "table-column", "table-column-group",
	    "table-footer-group", "table-header-group", "table-row", "table-row-group",
	    "tamil",
	    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
	    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
	    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
	    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
	    "trad-chinese-formal", "trad-chinese-informal", "transform",
	    "translate", "translate3d", "translateX", "translateY", "translateZ",
	    "transparent", "ultra-condensed", "ultra-expanded", "underline", "unidirectional-pan", "unset", "up",
	    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
	    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
	    "var", "vertical", "vertical-text", "view-box", "visible", "visibleFill", "visiblePainted",
	    "visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
	    "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
	    "xx-large", "xx-small"
	  ], valueKeywords = keySet(valueKeywords_);

var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
	    .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
	    .concat(valueKeywords_);
	  CodeMirror.registerHelper("hintWords", "css", allWords);

CodeMirror.defineMIME("text/css", {
	    documentTypes: documentTypes,
	    mediaTypes: mediaTypes,
	    mediaFeatures: mediaFeatures,
	    mediaValueKeywords: mediaValueKeywords,
	    propertyKeywords: propertyKeywords,
	    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
	    fontProperties: fontProperties,
	    counterDescriptors: counterDescriptors,
	    colorKeywords: colorKeywords,
	    valueKeywords: valueKeywords,
	    tokenHooks: {
	      "/": function(stream, state) {
	        if (!stream.eat("*")) return false;
	        state.tokenize = tokenCComment;
	        return tokenCComment(stream, state);
	      }
	    },
	    name: "css"
	  });

CodeMirror.defineMIME("text/x-scss", {
	    mediaTypes: mediaTypes,
	    mediaFeatures: mediaFeatures,
	    mediaValueKeywords: mediaValueKeywords,
	    propertyKeywords: propertyKeywords,
	    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
	    colorKeywords: colorKeywords,
	    valueKeywords: valueKeywords,
	    fontProperties: fontProperties,
	    allowNested: true,
	    lineComment: "//",
	    tokenHooks: {
	      "/": function(stream, state) {
	        if (stream.eat("/")) {
	          stream.skipToEnd();
	          return ["comment", "comment"];
	        } else if (stream.eat("*")) {
	          state.tokenize = tokenCComment;
	          return tokenCComment(stream, state);
	        } else {
	          return ["operator", "operator"];
	        }
	      },
	      ":": function(stream) {
	        if (stream.match(/^\s*\{/, false))
	          return [null, null]
	        return false;
	      },
	      "$": function(stream) {
	        stream.match(/^[\w-]+/);
	        if (stream.match(/^\s*:/, false))
	          return ["variable-2", "variable-definition"];
	        return ["variable-2", "variable"];
	      },
	      "#": function(stream) {
	        if (!stream.eat("{")) return false;
	        return [null, "interpolation"];
	      }
	    },
	    name: "css",
	    helperType: "scss"
	  });

CodeMirror.defineMIME("text/x-less", {
	    mediaTypes: mediaTypes,
	    mediaFeatures: mediaFeatures,
	    mediaValueKeywords: mediaValueKeywords,
	    propertyKeywords: propertyKeywords,
	    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
	    colorKeywords: colorKeywords,
	    valueKeywords: valueKeywords,
	    fontProperties: fontProperties,
	    allowNested: true,
	    lineComment: "//",
	    tokenHooks: {
	      "/": function(stream, state) {
	        if (stream.eat("/")) {
	          stream.skipToEnd();
	          return ["comment", "comment"];
	        } else if (stream.eat("*")) {
	          state.tokenize = tokenCComment;
	          return tokenCComment(stream, state);
	        } else {
	          return ["operator", "operator"];
	        }
	      },
	      "@": function(stream) {
	        if (stream.eat("{")) return [null, "interpolation"];
	        if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/i, false)) return false;
	        stream.eatWhile(/[\w\\\-]/);
	        if (stream.match(/^\s*:/, false))
	          return ["variable-2", "variable-definition"];
	        return ["variable-2", "variable"];
	      },
	      "&": function() {
	        return ["atom", "atom"];
	      }
	    },
	    name: "css",
	    helperType: "less"
	  });

CodeMirror.defineMIME("text/x-gss", {
	    documentTypes: documentTypes,
	    mediaTypes: mediaTypes,
	    mediaFeatures: mediaFeatures,
	    propertyKeywords: propertyKeywords,
	    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
	    fontProperties: fontProperties,
	    counterDescriptors: counterDescriptors,
	    colorKeywords: colorKeywords,
	    valueKeywords: valueKeywords,
	    supportsAtComponent: true,
	    tokenHooks: {
	      "/": function(stream, state) {
	        if (!stream.eat("*")) return false;
	        state.tokenize = tokenCComment;
	        return tokenCComment(stream, state);
	      }
	    },
	    name: "css",
	    helperType: "gss"
	  });

}); 
} ());

var cssExports = css.exports;
/* Injected with object hook! */

var xml = {exports: {}};/* Injected with object hook! */

var hasRequiredXml;

function requireXml () {
	if (hasRequiredXml) return xml.exports;
	hasRequiredXml = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

var htmlConfig = {
		  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
		                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
		                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
		                    'track': true, 'wbr': true, 'menuitem': true},
		  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
		                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
		                     'th': true, 'tr': true},
		  contextGrabbers: {
		    'dd': {'dd': true, 'dt': true},
		    'dt': {'dd': true, 'dt': true},
		    'li': {'li': true},
		    'option': {'option': true, 'optgroup': true},
		    'optgroup': {'optgroup': true},
		    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
		          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
		          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
		          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
		          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
		    'rp': {'rp': true, 'rt': true},
		    'rt': {'rp': true, 'rt': true},
		    'tbody': {'tbody': true, 'tfoot': true},
		    'td': {'td': true, 'th': true},
		    'tfoot': {'tbody': true},
		    'th': {'td': true, 'th': true},
		    'thead': {'tbody': true, 'tfoot': true},
		    'tr': {'tr': true}
		  },
		  doNotIndent: {"pre": true},
		  allowUnquoted: true,
		  allowMissing: true,
		  caseFold: true
		};

var xmlConfig = {
		  autoSelfClosers: {},
		  implicitlyClosed: {},
		  contextGrabbers: {},
		  doNotIndent: {},
		  allowUnquoted: false,
		  allowMissing: false,
		  allowMissingTagName: false,
		  caseFold: false
		};

CodeMirror.defineMode("xml", function(editorConf, config_) {
		  var indentUnit = editorConf.indentUnit;
		  var config = {};
		  var defaults = config_.htmlMode ? htmlConfig : xmlConfig;
		  for (var prop in defaults) config[prop] = defaults[prop];
		  for (var prop in config_) config[prop] = config_[prop];

// Return variables for tokenizers
		  var type, setStyle;

function inText(stream, state) {
		    function chain(parser) {
		      state.tokenize = parser;
		      return parser(stream, state);
		    }

function lower(tagName) {
		    return tagName && tagName.toLowerCase();
		  }

return {
		    startState: function(baseIndent) {
		      var state = {tokenize: inText,
		                   state: baseState,
		                   indented: baseIndent || 0,
		                   tagName: null, tagStart: null,
		                   context: null};
		      if (baseIndent != null) state.baseIndent = baseIndent;
		      return state
		    },

token: function(stream, state) {
		      if (!state.tagName && stream.sol())
		        state.indented = stream.indentation();

if (stream.eatSpace()) return null;
		      type = null;
		      var style = state.tokenize(stream, state);
		      if ((style || type) && style != "comment") {
		        setStyle = null;
		        state.state = state.state(type || style, stream, state);
		        if (setStyle)
		          style = setStyle == "error" ? style + " error" : setStyle;
		      }
		      return style;
		    },

indent: function(state, textAfter, fullLine) {
		      var context = state.context;
		      // Indent multi-line strings (e.g. css).
		      if (state.tokenize.isInAttribute) {
		        if (state.tagStart == state.indented)
		          return state.stringStartCol + 1;
		        else
		          return state.indented + indentUnit;
		      }
		      if (context && context.noIndent) return CodeMirror.Pass;
		      if (state.tokenize != inTag && state.tokenize != inText)
		        return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
		      // Indent the starts of attribute names.
		      if (state.tagName) {
		        if (config.multilineTagIndentPastTag !== false)
		          return state.tagStart + state.tagName.length + 2;
		        else
		          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
		      }
		      if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
		      var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
		      if (tagAfter && tagAfter[1]) { // Closing tag spotted
		        while (context) {
		          if (context.tagName == tagAfter[2]) {
		            context = context.prev;
		            break;
		          } else if (config.implicitlyClosed.hasOwnProperty(lower(context.tagName))) {
		            context = context.prev;
		          } else {
		            break;
		          }
		        }
		      } else if (tagAfter) { // Opening tag spotted
		        while (context) {
		          var grabbers = config.contextGrabbers[lower(context.tagName)];
		          if (grabbers && grabbers.hasOwnProperty(lower(tagAfter[2])))
		            context = context.prev;
		          else
		            break;
		        }
		      }
		      while (context && context.prev && !context.startOfLine)
		        context = context.prev;
		      if (context) return context.indent + indentUnit;
		      else return state.baseIndent || 0;
		    },

electricInput: /<\/[\s\w:]+>$/,
		    blockCommentStart: "",

configuration: config.htmlMode ? "html" : "xml",
		    helperType: config.htmlMode ? "html" : "xml",

skipAttribute: function(state) {
		      if (state.state == attrValueState)
		        state.state = attrState;
		    },

xmlCurrentTag: function(state) {
		      return state.tagName ? {name: state.tagName, close: state.type == "closeTag"} : null
		    },

xmlCurrentContext: function(state) {
		      var context = [];
		      for (var cx = state.context; cx; cx = cx.prev)
		        context.push(cx.tagName);
		      return context.reverse()
		    }
		  };
		});

CodeMirror.defineMIME("text/xml", "xml");
		CodeMirror.defineMIME("application/xml", "xml");
		if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
		  CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});

}); 
	} ());
	return xml.exports;
}
/* Injected with object hook! */

var meta = {exports: {}};/* Injected with object hook! */

var hasRequiredMeta;

function requireMeta () {
	if (hasRequiredMeta) return meta.exports;
	hasRequiredMeta = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.modeInfo = [
		    {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
		    {name: "PGP", mimes: ["application/pgp", "application/pgp-encrypted", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["asc", "pgp", "sig"]},
		    {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
		    {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
		    {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
		    {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h", "ino"]},
		    {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
		    {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy", "cbl"]},
		    {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp", "cs"]},
		    {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj", "cljc", "cljx"]},
		    {name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
		    {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
		    {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists\.txt$/},
		    {name: "CoffeeScript", mimes: ["application/vnd.coffeescript", "text/coffeescript", "text/x-coffeescript"], mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
		    {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
		    {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
		    {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
		    {name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
		    {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
		    {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
		    {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
		    {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
		    {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
		    {name: "Django", mime: "text/x-django", mode: "django"},
		    {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
		    {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
		    {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
		    {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
		    {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
		    {name: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
		    {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
		    {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
		    {name: "Embedded JavaScript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
		    {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
		    {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
		    {name: "Esper", mime: "text/x-esper", mode: "sql"},
		    {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
		    {name: "FCL", mime: "text/x-fcl", mode: "fcl"},
		    {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
		    {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90", "f95"]},
		    {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
		    {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
		    {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
		    {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history)\.md$/i},
		    {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
		    {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"], file: /^Jenkinsfile$/},
		    {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
		    {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
		    {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
		    {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
		    {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
		    {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
		    {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm", "handlebars", "hbs"], alias: ["xhtml"]},
		    {name: "HTTP", mime: "message/http", mode: "http"},
		    {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
		    {name: "Pug", mime: "text/x-pug", mode: "pug", ext: ["jade", "pug"], alias: ["jade"]},
		    {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
		    {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
		    {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
		     mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
		    {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
		    {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
		    {name: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
		    {name: "Jinja2", mime: "text/jinja2", mode: "jinja2", ext: ["j2", "jinja", "jinja2"]},
		    {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"], alias: ["jl"]},
		    {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
		    {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
		    {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
		    {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
		    {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
		    {name: "mIRC", mime: "text/mirc", mode: "mirc"},
		    {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
		    {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb", "wl", "wls"]},
		    {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
		    {name: "MUMPS", mime: "text/x-mumps", mode: "mumps", ext: ["mps"]},
		    {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
		    {name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
		    {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
		    {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
		    {name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
		    {name: "NTriples", mimes: ["application/n-triples", "application/n-quads", "text/n-triples"],
		     mode: "ntriples", ext: ["nt", "nq"]},
		    {name: "Objective-C", mime: "text/x-objectivec", mode: "clike", ext: ["m"], alias: ["objective-c", "objc"]},
		    {name: "Objective-C++", mime: "text/x-objectivec++", mode: "clike", ext: ["mm"], alias: ["objective-c++", "objc++"]},
		    {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
		    {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
		    {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
		    {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
		    {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
		    {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
		    {name: "PHP", mimes: ["text/x-php", "application/x-httpd-php", "application/x-httpd-php-open"], mode: "php", ext: ["php", "php3", "php4", "php5", "php7", "phtml"]},
		    {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
		    {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
		    {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
		    {name: "PostgreSQL", mime: "text/x-pgsql", mode: "sql"},
		    {name: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
		    {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
		    {name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
		    {name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
		    {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
		    {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
		    {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r", "R"], alias: ["rscript"]},
		    {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
		    {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
		    {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
		    {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
		    {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
		    {name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
		    {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
		    {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
		    {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
		    {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
		    {name: "Shell", mimes: ["text/x-sh", "application/x-sh"], mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
		    {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
		    {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
		    {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
		    {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
		    {name: "Solr", mime: "text/x-solr", mode: "solr"},
		    {name: "SML", mime: "text/x-sml", mode: "mllike", ext: ["sml", "sig", "fun", "smackspec"]},
		    {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
		    {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
		    {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
		    {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
		    {name: "SQLite", mime: "text/x-sqlite", mode: "sql"},
		    {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
		    {name: "Stylus", mime: "text/x-styl", mode: "stylus", ext: ["styl"]},
		    {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
		    {name: "sTeX", mime: "text/x-stex", mode: "stex"},
		    {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx", "tex"], alias: ["tex"]},
		    {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v", "sv", "svh"]},
		    {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
		    {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
		    {name: "TiddlyWiki", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
		    {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
		    {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
		    {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
		    {name: "troff", mime: "text/troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
		    {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
		    {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
		    {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
		    {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
		    {name: "TypeScript-JSX", mime: "text/typescript-jsx", mode: "jsx", ext: ["tsx"], alias: ["tsx"]},
		    {name: "Twig", mime: "text/x-twig", mode: "twig"},
		    {name: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
		    {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
		    {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
		    {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
		    {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
		    {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
		    {name: "Vue.js Component", mimes: ["script/x-vue", "text/x-vue"], mode: "vue", ext: ["vue"]},
		    {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd", "svg"], alias: ["rss", "wsdl", "xsd"]},
		    {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
		    {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
		    {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
		    {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
		    {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
		    {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
		    {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]},
		    {name: "WebAssembly", mime: "text/webassembly", mode: "wast", ext: ["wat", "wast"]},
		  ];
		  // Ensure all modes have a mime property for backwards compatibility
		  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
		    var info = CodeMirror.modeInfo[i];
		    if (info.mimes) info.mime = info.mimes[0];
		  }

CodeMirror.findModeByMIME = function(mime) {
		    mime = mime.toLowerCase();
		    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
		      var info = CodeMirror.modeInfo[i];
		      if (info.mime == mime) return info;
		      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
		        if (info.mimes[j] == mime) return info;
		    }
		    if (/\+xml$/.test(mime)) return CodeMirror.findModeByMIME("application/xml")
		    if (/\+json$/.test(mime)) return CodeMirror.findModeByMIME("application/json")
		  };

CodeMirror.findModeByExtension = function(ext) {
		    ext = ext.toLowerCase();
		    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
		      var info = CodeMirror.modeInfo[i];
		      if (info.ext) for (var j = 0; j < info.ext.length; j++)
		        if (info.ext[j] == ext) return info;
		    }
		  };

CodeMirror.findModeByFileName = function(filename) {
		    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
		      var info = CodeMirror.modeInfo[i];
		      if (info.file && info.file.test(filename)) return info;
		    }
		    var dot = filename.lastIndexOf(".");
		    var ext = dot > -1 && filename.substring(dot + 1, filename.length);
		    if (ext) return CodeMirror.findModeByExtension(ext);
		  };

CodeMirror.findModeByName = function(name) {
		    name = name.toLowerCase();
		    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
		      var info = CodeMirror.modeInfo[i];
		      if (info.name.toLowerCase() == name) return info;
		      if (info.alias) for (var j = 0; j < info.alias.length; j++)
		        if (info.alias[j].toLowerCase() == name) return info;
		    }
		  };
		}); 
	} ());
	return meta.exports;
}
/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror(), requireXml(), requireMeta());
	})(function(CodeMirror) {

CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {

var htmlMode = CodeMirror.getMode(cmCfg, "text/html");
	  var htmlModeMissing = htmlMode.name == "null";

function getMode(name) {
	    if (CodeMirror.findModeByName) {
	      var found = CodeMirror.findModeByName(name);
	      if (found) name = found.mime || found.mimes[0];
	    }
	    var mode = CodeMirror.getMode(cmCfg, name);
	    return mode.name == "null" ? null : mode;
	  }

// Should characters that affect highlighting be highlighted separate?
	  // Does not include characters that will be output (such as `1.` and `-` for lists)
	  if (modeCfg.highlightFormatting === undefined)
	    modeCfg.highlightFormatting = false;

// Maximum number of nested blockquotes. Set to 0 for infinite nesting.
	  // Excess `>` will emit `error` token.
	  if (modeCfg.maxBlockquoteDepth === undefined)
	    modeCfg.maxBlockquoteDepth = 0;

// Turn on task lists? ("- [ ] " and "- [x] ")
	  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;

// Turn on strikethrough syntax
	  if (modeCfg.strikethrough === undefined)
	    modeCfg.strikethrough = false;

if (modeCfg.emoji === undefined)
	    modeCfg.emoji = false;

if (modeCfg.fencedCodeBlockHighlighting === undefined)
	    modeCfg.fencedCodeBlockHighlighting = true;

if (modeCfg.fencedCodeBlockDefaultMode === undefined)
	    modeCfg.fencedCodeBlockDefaultMode = 'text/plain';

if (modeCfg.xml === undefined)
	    modeCfg.xml = true;

// Allow token types to be overridden by user-provided token types.
	  if (modeCfg.tokenTypeOverrides === undefined)
	    modeCfg.tokenTypeOverrides = {};

var tokenTypes = {
	    header: "header",
	    code: "comment",
	    quote: "quote",
	    list1: "variable-2",
	    list2: "variable-3",
	    list3: "keyword",
	    hr: "hr",
	    image: "image",
	    imageAltText: "image-alt-text",
	    imageMarker: "image-marker",
	    formatting: "formatting",
	    linkInline: "link",
	    linkEmail: "link",
	    linkText: "link",
	    linkHref: "string",
	    em: "em",
	    strong: "strong",
	    strikethrough: "strikethrough",
	    emoji: "builtin"
	  };

for (var tokenType in tokenTypes) {
	    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
	      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
	    }
	  }

var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
	  ,   listRE = /^(?:[*\-+]|^[0-9]+([.)]))\s+/
	  ,   taskListRE = /^\[(x| )\](?=\s)/i // Must follow listRE
	  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
	  ,   setextHeaderRE = /^ {0,3}(?:\={1,}|-{2,})\s*$/
	  ,   textRE = /^[^#!\[\]*_\\<>` "'(~:]+/
	  ,   fencedCodeRE = /^(~~~+|```+)[ \t]*([\w\/+#-]*)[^\n`]*$/
	  ,   linkDefRE = /^\s*\[[^\]]+?\]:.*$/ // naive link-definition
	  ,   punctuation = /[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u0AF0\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E42\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC9\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDF3C-\uDF3E]|\uD809[\uDC70-\uDC74]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]/
	  ,   expandedTab = "    "; // CommonMark specifies tab as 4 spaces

function switchInline(stream, state, f) {
	    state.f = state.inline = f;
	    return f(stream, state);
	  }

function switchBlock(stream, state, f) {
	    state.f = state.block = f;
	    return f(stream, state);
	  }

function lineIsEmpty(line) {
	    return !line || !/\S/.test(line.string)
	  }

// Blocks

function blockNormal(stream, state) {
	    var firstTokenOnLine = stream.column() === state.indentation;
	    var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream);
	    var prevLineIsIndentedCode = state.indentedCode;
	    var prevLineIsHr = state.prevLine.hr;
	    var prevLineIsList = state.list !== false;
	    var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3;

state.indentedCode = false;

// not comprehensive (currently only for setext detection purposes)
	    var allowsInlineContinuation = (
	        !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header &&
	        (!prevLineIsList || !prevLineIsIndentedCode) &&
	        !state.prevLine.fencedCodeEnd
	    );

var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) &&
	      state.indentation <= maxNonCodeIndentation && stream.match(hrRE);

state.indentation = lineIndentation + stream.current().length;
	      state.list = true;
	      state.quote = 0;

// Add this list item's content's indentation to the stack
	      state.listStack.push(state.indentation);
	      // Reset inline styles which shouldn't propagate across list items
	      state.em = false;
	      state.strong = false;
	      state.code = false;
	      state.strikethrough = false;

if (modeCfg.taskLists && stream.match(taskListRE, false)) {
	        state.taskList = true;
	      }
	      state.f = state.inline;
	      if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
	      return getType(state);
	    } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) {
	      state.quote = 0;
	      state.fencedEndRE = new RegExp(match[1] + "+ *$");
	      // try switching mode
	      state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2] || modeCfg.fencedCodeBlockDefaultMode );
	      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);
	      state.f = state.block = local;
	      if (modeCfg.highlightFormatting) state.formatting = "code-block";
	      state.code = -1;
	      return getType(state);
	    // SETEXT has lowest block-scope precedence after HR, so check it after
	    //  the others (code, blockquote, list...)
	    } else if (
	      // if setext set, indicates line after ---/===
	      state.setext || (
	        // line before ---/===
	        (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false &&
	        !state.code && !isHr && !linkDefRE.test(stream.string) &&
	        (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE))
	      )
	    ) {
	      if ( !state.setext ) {
	        state.header = match[0].charAt(0) == '=' ? 1 : 2;
	        state.setext = state.header;
	      } else {
	        state.header = state.setext;
	        // has no effect on type so we can reset it now
	        state.setext = 0;
	        stream.skipToEnd();
	        if (modeCfg.highlightFormatting) state.formatting = "header";
	      }
	      state.thisLine.header = true;
	      state.f = state.inline;
	      return getType(state);
	    } else if (isHr) {
	      stream.skipToEnd();
	      state.hr = true;
	      state.thisLine.hr = true;
	      return tokenTypes.hr;
	    } else if (stream.peek() === '[') {
	      return switchInline(stream, state, footnoteLink);
	    }

return switchInline(stream, state, state.inline);
	  }

// Inline
	  function getType(state) {
	    var styles = [];

if (state.formatting) {
	      styles.push(tokenTypes.formatting);

if (typeof state.formatting === "string") state.formatting = [state.formatting];

for (var i = 0; i < state.formatting.length; i++) {
	        styles.push(tokenTypes.formatting + "-" + state.formatting[i]);

if (state.formatting[i] === "header") {
	          styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.header);
	        }

// Add `formatting-quote` and `formatting-quote-#` for blockquotes
	        // Add `error` instead if the maximum blockquote nesting depth is passed
	        if (state.formatting[i] === "quote") {
	          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
	            styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.quote);
	          } else {
	            styles.push("error");
	          }
	        }
	      }
	    }

if (state.taskOpen) {
	      styles.push("meta");
	      return styles.length ? styles.join(' ') : null;
	    }
	    if (state.taskClosed) {
	      styles.push("property");
	      return styles.length ? styles.join(' ') : null;
	    }

if (state.linkHref) {
	      styles.push(tokenTypes.linkHref, "url");
	    } else { // Only apply inline styles to non-url text
	      if (state.strong) { styles.push(tokenTypes.strong); }
	      if (state.em) { styles.push(tokenTypes.em); }
	      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
	      if (state.emoji) { styles.push(tokenTypes.emoji); }
	      if (state.linkText) { styles.push(tokenTypes.linkText); }
	      if (state.code) { styles.push(tokenTypes.code); }
	      if (state.image) { styles.push(tokenTypes.image); }
	      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, "link"); }
	      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }
	    }

if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }

if (state.quote) {
	      styles.push(tokenTypes.quote);

// Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
	      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
	        styles.push(tokenTypes.quote + "-" + state.quote);
	      } else {
	        styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
	      }
	    }

if (state.list !== false) {
	      var listMod = (state.listStack.length - 1) % 3;
	      if (!listMod) {
	        styles.push(tokenTypes.list1);
	      } else if (listMod === 1) {
	        styles.push(tokenTypes.list2);
	      } else {
	        styles.push(tokenTypes.list3);
	      }
	    }

if (state.trailingSpaceNewLine) {
	      styles.push("trailing-space-new-line");
	    } else if (state.trailingSpace) {
	      styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
	    }

return styles.length ? styles.join(' ') : null;
	  }

function handleText(stream, state) {
	    if (stream.match(textRE, true)) {
	      return getType(state);
	    }
	    return undefined;
	  }

function inlineNormal(stream, state) {
	    var style = state.text(stream, state);
	    if (typeof style !== 'undefined')
	      return style;

if (state.list) { // List marker (*, +, -, 1., etc)
	      state.list = null;
	      return getType(state);
	    }

if (state.taskList) {
	      var taskOpen = stream.match(taskListRE, true)[1] === " ";
	      if (taskOpen) state.taskOpen = true;
	      else state.taskClosed = true;
	      if (modeCfg.highlightFormatting) state.formatting = "task";
	      state.taskList = false;
	      return getType(state);
	    }

state.taskOpen = false;
	    state.taskClosed = false;

if (state.header && stream.match(/^#+$/, true)) {
	      if (modeCfg.highlightFormatting) state.formatting = "header";
	      return getType(state);
	    }

var ch = stream.next();

// Matches link titles present on next line
	    if (state.linkTitle) {
	      state.linkTitle = false;
	      var matchCh = ch;
	      if (ch === '(') {
	        matchCh = ')';
	      }
	      matchCh = (matchCh+'').replace(/([.?*+^\[\]\\(){}|-])/g, "\\$1");
	      var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
	      if (stream.match(new RegExp(regex), true)) {
	        return tokenTypes.linkHref;
	      }
	    }

// If this block is changed, it may need to be updated in GFM mode
	    if (ch === '`') {
	      var previousFormatting = state.formatting;
	      if (modeCfg.highlightFormatting) state.formatting = "code";
	      stream.eatWhile('`');
	      var count = stream.current().length;
	      if (state.code == 0 && (!state.quote || count == 1)) {
	        state.code = count;
	        return getType(state)
	      } else if (count == state.code) { // Must be exact
	        var t = getType(state);
	        state.code = 0;
	        return t
	      } else {
	        state.formatting = previousFormatting;
	        return getType(state)
	      }
	    } else if (state.code) {
	      return getType(state);
	    }

if (ch === '\\') {
	      stream.next();
	      if (modeCfg.highlightFormatting) {
	        var type = getType(state);
	        var formattingEscape = tokenTypes.formatting + "-escape";
	        return type ? type + " " + formattingEscape : formattingEscape;
	      }
	    }

if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
	      state.imageMarker = true;
	      state.image = true;
	      if (modeCfg.highlightFormatting) state.formatting = "image";
	      return getType(state);
	    }

if (ch === '[' && state.imageMarker && stream.match(/[^\]]*\]($.*?$| ?\[.*?\])/, false)) {
	      state.imageMarker = false;
	      state.imageAltText = true;
	      if (modeCfg.highlightFormatting) state.formatting = "image";
	      return getType(state);
	    }

if (ch === ']' && state.imageAltText) {
	      if (modeCfg.highlightFormatting) state.formatting = "image";
	      var type = getType(state);
	      state.imageAltText = false;
	      state.image = false;
	      state.inline = state.f = linkHref;
	      return type;
	    }

if (ch === '[' && !state.image) {
	      if (state.linkText && stream.match(/^.*?\]/)) return getType(state)
	      state.linkText = true;
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      return getType(state);
	    }

if (ch === ']' && state.linkText) {
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      var type = getType(state);
	      state.linkText = false;
	      state.inline = state.f = stream.match(/$.*?$| ?\[.*?\]/, false) ? linkHref : inlineNormal;
	      return type;
	    }

if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
	      state.f = state.inline = linkInline;
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      var type = getType(state);
	      if (type){
	        type += " ";
	      } else {
	        type = "";
	      }
	      return type + tokenTypes.linkInline;
	    }

if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
	      state.f = state.inline = linkInline;
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      var type = getType(state);
	      if (type){
	        type += " ";
	      } else {
	        type = "";
	      }
	      return type + tokenTypes.linkEmail;
	    }

if (modeCfg.xml && ch === '<' && stream.match(/^(!--|\?|!\[CDATA\[|[a-z][a-z0-9-]*(?:\s+[a-z_:.\-]+(?:\s*=\s*[^>]+)?)*\s*(?:>|$))/i, false)) {
	      var end = stream.string.indexOf(">", stream.pos);
	      if (end != -1) {
	        var atts = stream.string.substring(stream.start, end);
	        if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
	      }
	      stream.backUp(1);
	      state.htmlState = CodeMirror.startState(htmlMode);
	      return switchBlock(stream, state, htmlBlock);
	    }

if (modeCfg.xml && ch === '<' && stream.match(/^\/\w*?>/)) {
	      state.md_inside = false;
	      return "tag";
	    } else if (ch === "*" || ch === "_") {
	      var len = 1, before = stream.pos == 1 ? " " : stream.string.charAt(stream.pos - 2);
	      while (len < 3 && stream.eat(ch)) len++;
	      var after = stream.peek() || " ";
	      // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis
	      var leftFlanking = !/\s/.test(after) && (!punctuation.test(after) || /\s/.test(before) || punctuation.test(before));
	      var rightFlanking = !/\s/.test(before) && (!punctuation.test(before) || /\s/.test(after) || punctuation.test(after));
	      var setEm = null, setStrong = null;
	      if (len % 2) { // Em
	        if (!state.em && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before)))
	          setEm = true;
	        else if (state.em == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after)))
	          setEm = false;
	      }
	      if (len > 1) { // Strong
	        if (!state.strong && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before)))
	          setStrong = true;
	        else if (state.strong == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after)))
	          setStrong = false;
	      }
	      if (setStrong != null || setEm != null) {
	        if (modeCfg.highlightFormatting) state.formatting = setEm == null ? "strong" : setStrong == null ? "em" : "strong em";
	        if (setEm === true) state.em = ch;
	        if (setStrong === true) state.strong = ch;
	        var t = getType(state);
	        if (setEm === false) state.em = false;
	        if (setStrong === false) state.strong = false;
	        return t
	      }
	    } else if (ch === ' ') {
	      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
	        if (stream.peek() === ' ') { // Surrounded by spaces, ignore
	          return getType(state);
	        } else { // Not surrounded by spaces, back up pointer
	          stream.backUp(1);
	        }
	      }
	    }

if (modeCfg.strikethrough) {
	      if (ch === '~' && stream.eatWhile(ch)) {
	        if (state.strikethrough) {// Remove strikethrough
	          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
	          var t = getType(state);
	          state.strikethrough = false;
	          return t;
	        } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
	          state.strikethrough = true;
	          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
	          return getType(state);
	        }
	      } else if (ch === ' ') {
	        if (stream.match('~~', true)) { // Probably surrounded by space
	          if (stream.peek() === ' ') { // Surrounded by spaces, ignore
	            return getType(state);
	          } else { // Not surrounded by spaces, back up pointer
	            stream.backUp(2);
	          }
	        }
	      }
	    }

if (modeCfg.emoji && ch === ":" && stream.match(/^(?:[a-z_\d+][a-z_\d+-]*|\-[a-z_\d+][a-z_\d+-]*):/)) {
	      state.emoji = true;
	      if (modeCfg.highlightFormatting) state.formatting = "emoji";
	      var retType = getType(state);
	      state.emoji = false;
	      return retType;
	    }

if (ch === ' ') {
	      if (stream.match(/^ +$/, false)) {
	        state.trailingSpace++;
	      } else if (state.trailingSpace) {
	        state.trailingSpaceNewLine = true;
	      }
	    }

return getType(state);
	  }

function linkInline(stream, state) {
	    var ch = stream.next();

if (ch === ">") {
	      state.f = state.inline = inlineNormal;
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      var type = getType(state);
	      if (type){
	        type += " ";
	      } else {
	        type = "";
	      }
	      return type + tokenTypes.linkInline;
	    }

stream.match(/^[^>]+/, true);

return tokenTypes.linkInline;
	  }

var linkRE = {
	    ")": /^(?:[^\\]|\\.|$(?:[^\\\($]|\\.)*\))*?(?=\))/,
	    "]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\]]|\\.)*\])*?(?=\])/
	  };

function getLinkHrefInside(endChar) {
	    return function(stream, state) {
	      var ch = stream.next();

if (ch === endChar) {
	        state.f = state.inline = inlineNormal;
	        if (modeCfg.highlightFormatting) state.formatting = "link-string";
	        var returnState = getType(state);
	        state.linkHref = false;
	        return returnState;
	      }

stream.match(linkRE[endChar]);
	      state.linkHref = true;
	      return getType(state);
	    };
	  }

function footnoteLink(stream, state) {
	    if (stream.match(/^([^\]\\]|\\.)*\]:/, false)) {
	      state.f = footnoteLinkInside;
	      stream.next(); // Consume [
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      state.linkText = true;
	      return getType(state);
	    }
	    return switchInline(stream, state, inlineNormal);
	  }

function footnoteLinkInside(stream, state) {
	    if (stream.match(']:', true)) {
	      state.f = state.inline = footnoteUrl;
	      if (modeCfg.highlightFormatting) state.formatting = "link";
	      var returnType = getType(state);
	      state.linkText = false;
	      return returnType;
	    }

stream.match(/^([^\]\\]|\\.)+/, true);

return tokenTypes.linkText;
	  }

var mode = {
	    startState: function() {
	      return {
	        f: blockNormal,

prevLine: {stream: null},
	        thisLine: {stream: null},

block: blockNormal,
	        htmlState: null,
	        indentation: 0,

inline: inlineNormal,
	        text: handleText,

formatting: false,
	        linkText: false,
	        linkHref: false,
	        linkTitle: false,
	        code: 0,
	        em: false,
	        strong: false,
	        header: 0,
	        setext: 0,
	        hr: false,
	        taskList: false,
	        list: false,
	        listStack: [],
	        quote: 0,
	        trailingSpace: 0,
	        trailingSpaceNewLine: false,
	        strikethrough: false,
	        emoji: false,
	        fencedEndRE: null
	      };
	    },

copyState: function(s) {
	      return {
	        f: s.f,

prevLine: s.prevLine,
	        thisLine: s.thisLine,

block: s.block,
	        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
	        indentation: s.indentation,

localMode: s.localMode,
	        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,

inline: s.inline,
	        text: s.text,
	        formatting: false,
	        linkText: s.linkText,
	        linkTitle: s.linkTitle,
	        linkHref: s.linkHref,
	        code: s.code,
	        em: s.em,
	        strong: s.strong,
	        strikethrough: s.strikethrough,
	        emoji: s.emoji,
	        header: s.header,
	        setext: s.setext,
	        hr: s.hr,
	        taskList: s.taskList,
	        list: s.list,
	        listStack: s.listStack.slice(0),
	        quote: s.quote,
	        indentedCode: s.indentedCode,
	        trailingSpace: s.trailingSpace,
	        trailingSpaceNewLine: s.trailingSpaceNewLine,
	        md_inside: s.md_inside,
	        fencedEndRE: s.fencedEndRE
	      };
	    },

token: function(stream, state) {

// Reset state.formatting
	      state.formatting = false;

if (stream != state.thisLine.stream) {
	        state.header = 0;
	        state.hr = false;

if (stream.match(/^\s*$/, true)) {
	          blankLine(state);
	          return null;
	        }

state.prevLine = state.thisLine;
	        state.thisLine = {stream: stream};

// Reset state.taskList
	        state.taskList = false;

// Reset state.trailingSpace
	        state.trailingSpace = 0;
	        state.trailingSpaceNewLine = false;

if (!state.localState) {
	          state.f = state.block;
	          if (state.f != htmlBlock) {
	            var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, expandedTab).length;
	            state.indentation = indentation;
	            state.indentationDiff = null;
	            if (indentation > 0) return null;
	          }
	        }
	      }
	      return state.f(stream, state);
	    },

innerMode: function(state) {
	      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
	      if (state.localState) return {state: state.localState, mode: state.localMode};
	      return {state: state, mode: mode};
	    },

indent: function(state, textAfter, line) {
	      if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line)
	      if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line)
	      return CodeMirror.Pass
	    },

blankLine: blankLine,

getType: getType,

blockCommentStart: "",
	    closeBrackets: "()[]{}''\"\"``",
	    fold: "markdown"
	  };
	  return mode;
	}, "xml");

CodeMirror.defineMIME("text/markdown", "markdown");

CodeMirror.defineMIME("text/x-markdown", "markdown");

}); 
} ());
/* Injected with object hook! */

requireXml();
/* Injected with object hook! */

var pug = {exports: {}};/* Injected with object hook! */

var htmlmixed = {exports: {}};/* Injected with object hook! */

var hasRequiredHtmlmixed;

function requireHtmlmixed () {
	if (hasRequiredHtmlmixed) return htmlmixed.exports;
	hasRequiredHtmlmixed = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
		  mod(requireCodemirror(), requireXml(), javascriptExports, cssExports);
		})(function(CodeMirror) {

var defaultTags = {
		    script: [
		      ["lang", /(javascript|babel)/i, "javascript"],
		      ["type", /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^module$|^$/i, "javascript"],
		      ["type", /./, "text/plain"],
		      [null, null, "javascript"]
		    ],
		    style:  [
		      ["lang", /^css$/i, "css"],
		      ["type", /^(text\/)?(x-)?(stylesheet|css)$/i, "css"],
		      ["type", /./, "text/plain"],
		      [null, null, "css"]
		    ]
		  };

var attrRegexpCache = {};
		  function getAttrRegexp(attr) {
		    var regexp = attrRegexpCache[attr];
		    if (regexp) return regexp;
		    return attrRegexpCache[attr] = new RegExp("\\s+" + attr + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*");
		  }

function getAttrValue(text, attr) {
		    var match = text.match(getAttrRegexp(attr));
		    return match ? /^\s*(.*?)\s*$/.exec(match[2])[1] : ""
		  }

function getTagRegexp(tagName, anchored) {
		    return new RegExp((anchored ? "^" : "") + "<\/\\s*" + tagName + "\\s*>", "i");
		  }

function addTags(from, to) {
		    for (var tag in from) {
		      var dest = to[tag] || (to[tag] = []);
		      var source = from[tag];
		      for (var i = source.length - 1; i >= 0; i--)
		        dest.unshift(source[i]);
		    }
		  }

function findMatchingMode(tagInfo, tagText) {
		    for (var i = 0; i < tagInfo.length; i++) {
		      var spec = tagInfo[i];
		      if (!spec[0] || spec[1].test(getAttrValue(tagText, spec[0]))) return spec[2];
		    }
		  }

CodeMirror.defineMode("htmlmixed", function (config, parserConfig) {
		    var htmlMode = CodeMirror.getMode(config, {
		      name: "xml",
		      htmlMode: true,
		      multilineTagIndentFactor: parserConfig.multilineTagIndentFactor,
		      multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag,
		      allowMissingTagName: parserConfig.allowMissingTagName,
		    });

var tags = {};
		    var configTags = parserConfig && parserConfig.tags, configScript = parserConfig && parserConfig.scriptTypes;
		    addTags(defaultTags, tags);
		    if (configTags) addTags(configTags, tags);
		    if (configScript) for (var i = configScript.length - 1; i >= 0; i--)
		      tags.script.unshift(["type", configScript[i].matches, configScript[i].mode]);

copyState: function (state) {
		        var local;
		        if (state.localState) {
		          local = CodeMirror.copyState(state.localMode, state.localState);
		        }
		        return {token: state.token, inTag: state.inTag,
		                localMode: state.localMode, localState: local,
		                htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
		      },

token: function (stream, state) {
		        return state.token(stream, state);
		      },

indent: function (state, textAfter, line) {
		        if (!state.localMode || /^\s*<\//.test(textAfter))
		          return htmlMode.indent(state.htmlState, textAfter, line);
		        else if (state.localMode.indent)
		          return state.localMode.indent(state.localState, textAfter, line);
		        else
		          return CodeMirror.Pass;
		      },

innerMode: function (state) {
		        return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode};
		      }
		    };
		  }, "xml", "javascript", "css");

CodeMirror.defineMIME("text/html", "htmlmixed");
		}); 
	} ());
	return htmlmixed.exports;
}
/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror(), javascriptExports, cssExports, requireHtmlmixed());
	})(function(CodeMirror) {

CodeMirror.defineMode("pug", function (config) {
	  // token types
	  var KEYWORD = 'keyword';
	  var DOCTYPE = 'meta';
	  var ID = 'builtin';
	  var CLASS = 'qualifier';

var ATTRS_NEST = {
	    '{': '}',
	    '(': ')',
	    '[': ']'
	  };

var jsMode = CodeMirror.getMode(config, 'javascript');

function State() {
	    this.javaScriptLine = false;
	    this.javaScriptLineExcludesColon = false;

this.javaScriptArguments = false;
	    this.javaScriptArgumentsDepth = 0;

this.isInterpolating = false;
	    this.interpolationNesting = 0;

this.jsState = CodeMirror.startState(jsMode);

this.restOfLine = '';

this.isIncludeFiltered = false;
	    this.isEach = false;

this.lastTag = '';
	    this.scriptType = '';

// Attributes Mode
	    this.isAttrs = false;
	    this.attrsNest = [];
	    this.inAttributeName = true;
	    this.attributeIsType = false;
	    this.attrValue = '';

// Indented Mode
	    this.indentOf = Infinity;
	    this.indentToken = '';

this.innerMode = null;
	    this.innerState = null;

this.innerModeForLine = false;
	  }
	  /**
	   * Safely copy a state
	   *
	   * @return {State}
	   */
	  State.prototype.copy = function () {
	    var res = new State();
	    res.javaScriptLine = this.javaScriptLine;
	    res.javaScriptLineExcludesColon = this.javaScriptLineExcludesColon;
	    res.javaScriptArguments = this.javaScriptArguments;
	    res.javaScriptArgumentsDepth = this.javaScriptArgumentsDepth;
	    res.isInterpolating = this.isInterpolating;
	    res.interpolationNesting = this.interpolationNesting;

res.jsState = CodeMirror.copyState(jsMode, this.jsState);

res.innerMode = this.innerMode;
	    if (this.innerMode && this.innerState) {
	      res.innerState = CodeMirror.copyState(this.innerMode, this.innerState);
	    }

res.restOfLine = this.restOfLine;

res.isIncludeFiltered = this.isIncludeFiltered;
	    res.isEach = this.isEach;
	    res.lastTag = this.lastTag;
	    res.scriptType = this.scriptType;
	    res.isAttrs = this.isAttrs;
	    res.attrsNest = this.attrsNest.slice();
	    res.inAttributeName = this.inAttributeName;
	    res.attributeIsType = this.attributeIsType;
	    res.attrValue = this.attrValue;
	    res.indentOf = this.indentOf;
	    res.indentToken = this.indentToken;

res.innerModeForLine = this.innerModeForLine;

return res;
	  };

var tok = jsMode.token(stream, state.jsState);
	      return tok || true;
	    }
	  }

function yieldStatement(stream) {
	    if (stream.match(/^yield\b/)) {
	        return 'keyword';
	    }
	  }

function doctype(stream) {
	    if (stream.match(/^(?:doctype) *([^\n]+)?/)) {
	        return DOCTYPE;
	    }
	  }

function interpolation(stream, state) {
	    if (stream.match('#{')) {
	      state.isInterpolating = true;
	      state.interpolationNesting = 0;
	      return 'punctuation';
	    }
	  }

function caseStatement(stream, state) {
	    if (stream.match(/^case\b/)) {
	      state.javaScriptLine = true;
	      return KEYWORD;
	    }
	  }

function when(stream, state) {
	    if (stream.match(/^when\b/)) {
	      state.javaScriptLine = true;
	      state.javaScriptLineExcludesColon = true;
	      return KEYWORD;
	    }
	  }

function defaultStatement(stream) {
	    if (stream.match(/^default\b/)) {
	      return KEYWORD;
	    }
	  }

function extendsStatement(stream, state) {
	    if (stream.match(/^extends?\b/)) {
	      state.restOfLine = 'string';
	      return KEYWORD;
	    }
	  }

function include(stream, state) {
	    if (stream.match(/^include\b/)) {
	      state.restOfLine = 'string';
	      return KEYWORD;
	    }
	  }

function includeFiltered(stream, state) {
	    if (stream.match(/^include:([a-zA-Z0-9\-]+)/, false) && stream.match('include')) {
	      state.isIncludeFiltered = true;
	      return KEYWORD;
	    }
	  }

function includeFilteredContinued(stream, state) {
	    if (state.isIncludeFiltered) {
	      var tok = filter(stream, state);
	      state.isIncludeFiltered = false;
	      state.restOfLine = 'string';
	      return tok;
	    }
	  }

function mixin(stream, state) {
	    if (stream.match(/^mixin\b/)) {
	      state.javaScriptLine = true;
	      return KEYWORD;
	    }
	  }

function conditional(stream, state) {
	    if (stream.match(/^(if|unless|else if|else)\b/)) {
	      state.javaScriptLine = true;
	      return KEYWORD;
	    }
	  }

function whileStatement(stream, state) {
	    if (stream.match(/^while\b/)) {
	      state.javaScriptLine = true;
	      return KEYWORD;
	    }
	  }

function code(stream, state) {
	    if (stream.match(/^(!?=|-)/)) {
	      state.javaScriptLine = true;
	      return 'punctuation';
	    }
	  }

function id(stream) {
	    if (stream.match(/^#([\w-]+)/)) {
	      return ID;
	    }
	  }

function className(stream) {
	    if (stream.match(/^\.([\w-]+)/)) {
	      return CLASS;
	    }
	  }

function attrs(stream, state) {
	    if (stream.peek() == '(') {
	      stream.next();
	      state.isAttrs = true;
	      state.attrsNest = [];
	      state.inAttributeName = true;
	      state.attrValue = '';
	      state.attributeIsType = false;
	      return 'punctuation';
	    }
	  }

function attributesBlock(stream, state) {
	    if (stream.match(/^&attributes\b/)) {
	      state.javaScriptArguments = true;
	      state.javaScriptArgumentsDepth = 0;
	      return 'keyword';
	    }
	  }

function indent(stream) {
	    if (stream.sol() && stream.eatSpace()) {
	      return 'indent';
	    }
	  }

function comment(stream, state) {
	    if (stream.match(/^ *\/\/(-)?([^\n]*)/)) {
	      state.indentOf = stream.indentation();
	      state.indentToken = 'comment';
	      return 'comment';
	    }
	  }

function colon(stream) {
	    if (stream.match(/^: */)) {
	      return 'colon';
	    }
	  }

function fail(stream) {
	    stream.next();
	    return null;
	  }

function setInnerMode(stream, state, mode) {
	    mode = CodeMirror.mimeModes[mode] || mode;
	    mode = config.innerModes ? config.innerModes(mode) || mode : mode;
	    mode = CodeMirror.mimeModes[mode] || mode;
	    mode = CodeMirror.getMode(config, mode);
	    state.indentOf = stream.indentation();

if (mode && mode.name !== 'null') {
	      state.innerMode = mode;
	    } else {
	      state.indentToken = 'string';
	    }
	  }
	  function innerMode(stream, state, force) {
	    if (stream.indentation() > state.indentOf || (state.innerModeForLine && !stream.sol()) || force) {
	      if (state.innerMode) {
	        if (!state.innerState) {
	          state.innerState = state.innerMode.startState ? CodeMirror.startState(state.innerMode, stream.indentation()) : {};
	        }
	        return stream.hideFirstChars(state.indentOf + 2, function () {
	          return state.innerMode.token(stream, state.innerState) || true;
	        });
	      } else {
	        stream.skipToEnd();
	        return state.indentToken;
	      }
	    } else if (stream.sol()) {
	      state.indentOf = Infinity;
	      state.indentToken = null;
	      state.innerMode = null;
	      state.innerState = null;
	    }
	  }
	  function restOfLine(stream, state) {
	    if (stream.sol()) {
	      // if restOfLine was set at end of line, ignore it
	      state.restOfLine = '';
	    }
	    if (state.restOfLine) {
	      stream.skipToEnd();
	      var tok = state.restOfLine;
	      state.restOfLine = '';
	      return tok;
	    }
	  }

function startState() {
	    return new State();
	  }
	  function copyState(state) {
	    return state.copy();
	  }
	  /**
	   * Get the next token in the stream
	   *
	   * @param {Stream} stream
	   * @param {State} state
	   */
	  function nextToken(stream, state) {
	    var tok = innerMode(stream, state)
	      || restOfLine(stream, state)
	      || interpolationContinued(stream, state)
	      || includeFilteredContinued(stream, state)
	      || eachContinued(stream, state)
	      || attrsContinued(stream, state)
	      || javaScript(stream, state)
	      || javaScriptArguments(stream, state)
	      || callArguments(stream, state)

|| yieldStatement(stream)
	      || doctype(stream)
	      || interpolation(stream, state)
	      || caseStatement(stream, state)
	      || when(stream, state)
	      || defaultStatement(stream)
	      || extendsStatement(stream, state)
	      || append(stream, state)
	      || prepend(stream, state)
	      || block(stream, state)
	      || include(stream, state)
	      || includeFiltered(stream, state)
	      || mixin(stream, state)
	      || call(stream, state)
	      || conditional(stream, state)
	      || each(stream, state)
	      || whileStatement(stream, state)
	      || tag(stream, state)
	      || filter(stream, state)
	      || code(stream, state)
	      || id(stream)
	      || className(stream)
	      || attrs(stream, state)
	      || attributesBlock(stream, state)
	      || indent(stream)
	      || text(stream, state)
	      || comment(stream, state)
	      || colon(stream)
	      || dot(stream, state)
	      || fail(stream);

return tok === true ? null : tok;
	  }
	  return {
	    startState: startState,
	    copyState: copyState,
	    token: nextToken
	  };
	}, 'javascript', 'css', 'htmlmixed');

CodeMirror.defineMIME('text/x-pug', 'pug');
	CodeMirror.defineMIME('text/x-jade', 'pug');

}); 
} ());

var pugExports = pug.exports;
/* Injected with object hook! */

var sass = {exports: {}};/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror(), cssExports);
	})(function(CodeMirror) {

CodeMirror.defineMode("sass", function(config) {
	  var cssMode = CodeMirror.mimeModes["text/css"];
	  var propertyKeywords = cssMode.propertyKeywords || {},
	      colorKeywords = cssMode.colorKeywords || {},
	      valueKeywords = cssMode.valueKeywords || {},
	      fontProperties = cssMode.fontProperties || {};

function tokenRegexp(words) {
	    return new RegExp("^" + words.join("|"));
	  }

var keywords = ["true", "false", "null", "auto"];
	  var keywordsRegexp = new RegExp("^" + keywords.join("|"));

var operators = ["\$", "\$", "=", ">", "<", "==", ">=", "<=", "\\+", "-",
	                   "\\!=", "/", "\\*", "%", "and", "or", "not", ";","\\{","\\}",":"];
	  var opRegexp = tokenRegexp(operators);

var pseudoElementsRegexp = /^::?[a-zA-Z_][\w\-]*/;

var word;

function isEndLine(stream) {
	    return !stream.peek() || stream.match(/\s+$/, false);
	  }

function urlTokens(stream, state) {
	    var ch = stream.peek();

if (ch === ")") {
	      stream.next();
	      state.tokenizer = tokenBase;
	      return "operator";
	    } else if (ch === "(") {
	      stream.next();
	      stream.eatSpace();

return "operator";
	    } else if (ch === "'" || ch === '"') {
	      state.tokenizer = buildStringTokenizer(stream.next());
	      return "string";
	    } else {
	      state.tokenizer = buildStringTokenizer(")", false);
	      return "string";
	    }
	  }
	  function comment(indentation, multiLine) {
	    return function(stream, state) {
	      if (stream.sol() && stream.indentation() <= indentation) {
	        state.tokenizer = tokenBase;
	        return tokenBase(stream, state);
	      }

if (multiLine && stream.skipTo("*/")) {
	        stream.next();
	        stream.next();
	        state.tokenizer = tokenBase;
	      } else {
	        stream.skipToEnd();
	      }

return "comment";
	    };
	  }

function buildStringTokenizer(quote, greedy) {
	    if (greedy == null) { greedy = true; }

function stringTokenizer(stream, state) {
	      var nextChar = stream.next();
	      var peekChar = stream.peek();
	      var previousChar = stream.string.charAt(stream.pos-2);

var endingString = ((nextChar !== "\\" && peekChar === quote) || (nextChar === quote && previousChar !== "\\"));

if (endingString) {
	        if (nextChar !== quote && greedy) { stream.next(); }
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        state.tokenizer = tokenBase;
	        return "string";
	      } else if (nextChar === "#" && peekChar === "{") {
	        state.tokenizer = buildInterpolationTokenizer(stringTokenizer);
	        stream.next();
	        return "operator";
	      } else {
	        return "string";
	      }
	    }

return stringTokenizer;
	  }

function dedent(state) {
	    if (state.scopes.length == 1) return;

state.scopes.shift();
	  }

function tokenBase(stream, state) {
	    var ch = stream.peek();

// Comment
	    if (stream.match("/*")) {
	      state.tokenizer = comment(stream.indentation(), true);
	      return state.tokenizer(stream, state);
	    }
	    if (stream.match("//")) {
	      state.tokenizer = comment(stream.indentation(), false);
	      return state.tokenizer(stream, state);
	    }

// Interpolation
	    if (stream.match("#{")) {
	      state.tokenizer = buildInterpolationTokenizer(tokenBase);
	      return "operator";
	    }

// Strings
	    if (ch === '"' || ch === "'") {
	      stream.next();
	      state.tokenizer = buildStringTokenizer(ch);
	      return "string";
	    }

if(!state.cursorHalf){// state.cursorHalf === 0
	    // first half i.e. before : for key-value pairs
	    // including selectors

if (ch === "-") {
	        if (stream.match(/^-\w+-/)) {
	          return "meta";
	        }
	      }

if (ch === ".") {
	        stream.next();
	        if (stream.match(/^[\w-]+/)) {
	          indent(state);
	          return "qualifier";
	        } else if (stream.peek() === "#") {
	          indent(state);
	          return "tag";
	        }
	      }

if (ch === "#") {
	        stream.next();
	        // ID selectors
	        if (stream.match(/^[\w-]+/)) {
	          indent(state);
	          return "builtin";
	        }
	        if (stream.peek() === "#") {
	          indent(state);
	          return "tag";
	        }
	      }

// Variables
	      if (ch === "$") {
	        stream.next();
	        stream.eatWhile(/[\w-]/);
	        return "variable-2";
	      }

// Numbers
	      if (stream.match(/^-?[0-9\.]+/))
	        return "number";

// Units
	      if (stream.match(/^(px|em|in)\b/))
	        return "unit";

if (stream.match(keywordsRegexp))
	        return "keyword";

if (stream.match(/^url/) && stream.peek() === "(") {
	        state.tokenizer = urlTokens;
	        return "atom";
	      }

if (ch === "=") {
	        // Match shortcut mixin definition
	        if (stream.match(/^=[\w-]+/)) {
	          indent(state);
	          return "meta";
	        }
	      }

if (ch === "+") {
	        // Match shortcut mixin definition
	        if (stream.match(/^\+[\w-]+/)){
	          return "variable-3";
	        }
	      }

if(ch === "@"){
	        if(stream.match('@extend')){
	          if(!stream.match(/\s*[\w]/))
	            dedent(state);
	        }
	      }

// Indent Directives
	      if (stream.match(/^@(else if|if|media|else|for|each|while|mixin|function)/)) {
	        indent(state);
	        return "def";
	      }

// Other Directives
	      if (ch === "@") {
	        stream.next();
	        stream.eatWhile(/[\w-]/);
	        return "def";
	      }

if (stream.eatWhile(/[\w-]/)){
	        if(stream.match(/ *: *[\w-\+\$#!\("']/,false)){
	          word = stream.current().toLowerCase();
	          var prop = state.prevProp + "-" + word;
	          if (propertyKeywords.hasOwnProperty(prop)) {
	            return "property";
	          } else if (propertyKeywords.hasOwnProperty(word)) {
	            state.prevProp = word;
	            return "property";
	          } else if (fontProperties.hasOwnProperty(word)) {
	            return "property";
	          }
	          return "tag";
	        }
	        else if(stream.match(/ *:/,false)){
	          indent(state);
	          state.cursorHalf = 1;
	          state.prevProp = stream.current().toLowerCase();
	          return "property";
	        }
	        else if(stream.match(/ *,/,false)){
	          return "tag";
	        }
	        else {
	          indent(state);
	          return "tag";
	        }
	      }

if(ch === ":"){
	        if (stream.match(pseudoElementsRegexp)){ // could be a pseudo-element
	          return "variable-3";
	        }
	        stream.next();
	        state.cursorHalf=1;
	        return "operator";
	      }

} // cursorHalf===0 ends here
	    else {

if (ch === "#") {
	        stream.next();
	        // Hex numbers
	        if (stream.match(/[0-9a-fA-F]{6}|[0-9a-fA-F]{3}/)){
	          if (isEndLine(stream)) {
	            state.cursorHalf = 0;
	          }
	          return "number";
	        }
	      }

// Numbers
	      if (stream.match(/^-?[0-9\.]+/)){
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "number";
	      }

// Units
	      if (stream.match(/^(px|em|in)\b/)){
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "unit";
	      }

if (stream.match(keywordsRegexp)){
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "keyword";
	      }

if (stream.match(/^url/) && stream.peek() === "(") {
	        state.tokenizer = urlTokens;
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "atom";
	      }

// Variables
	      if (ch === "$") {
	        stream.next();
	        stream.eatWhile(/[\w-]/);
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "variable-2";
	      }

// bang character for !important, !default, etc.
	      if (ch === "!") {
	        stream.next();
	        state.cursorHalf = 0;
	        return stream.match(/^[\w]+/) ? "keyword": "operator";
	      }

if (stream.match(opRegexp)){
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        return "operator";
	      }

// attributes
	      if (stream.eatWhile(/[\w-]/)) {
	        if (isEndLine(stream)) {
	          state.cursorHalf = 0;
	        }
	        word = stream.current().toLowerCase();
	        if (valueKeywords.hasOwnProperty(word)) {
	          return "atom";
	        } else if (colorKeywords.hasOwnProperty(word)) {
	          return "keyword";
	        } else if (propertyKeywords.hasOwnProperty(word)) {
	          state.prevProp = stream.current().toLowerCase();
	          return "property";
	        } else {
	          return "tag";
	        }
	      }

//stream.eatSpace();
	      if (isEndLine(stream)) {
	        state.cursorHalf = 0;
	        return null;
	      }

} // else ends here

if (stream.match(opRegexp))
	      return "operator";

// If we haven't returned by now, we move 1 character
	    // and return an error
	    stream.next();
	    return null;
	  }

function tokenLexer(stream, state) {
	    if (stream.sol()) state.indentCount = 0;
	    var style = state.tokenizer(stream, state);
	    var current = stream.current();

if (current === "@return" || current === "}"){
	      dedent(state);
	    }

if (style !== null) {
	      var startOfToken = stream.pos - current.length;

var withCurrentIndent = startOfToken + (config.indentUnit * state.indentCount);

var newScopes = [];

for (var i = 0; i < state.scopes.length; i++) {
	        var scope = state.scopes[i];

if (scope.offset <= withCurrentIndent)
	          newScopes.push(scope);
	      }

state.scopes = newScopes;
	    }

return style;
	  }

return {
	    startState: function() {
	      return {
	        tokenizer: tokenBase,
	        scopes: [{offset: 0, type: "sass"}],
	        indentCount: 0,
	        cursorHalf: 0,  // cursor half tells us if cursor lies after (1)
	                        // or before (0) colon (well... more or less)
	        definedVars: [],
	        definedMixins: []
	      };
	    },
	    token: function(stream, state) {
	      var style = tokenLexer(stream, state);

state.lastToken = { style: style, content: stream.current() };

return style;
	    },

indent: function(state) {
	      return state.scopes[0].offset;
	    },

blockCommentStart: "/*",
	    blockCommentEnd: "*/",
	    lineComment: "//",
	    fold: "indent"
	  };
	}, "css");

CodeMirror.defineMIME("text/x-sass", "sass");

}); 
} ());

var sassExports = sass.exports;
/* Injected with object hook! */

var overlay = {exports: {}};/* Injected with object hook! */

var hasRequiredOverlay;

function requireOverlay () {
	if (hasRequiredOverlay) return overlay.exports;
	hasRequiredOverlay = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

// Utility function that allows modes to be combined. The mode given
		// as the base argument takes care of most of the normal mode
		// functionality, but a second (typically simple) mode is used, which
		// can override the style of text. Both modes get to parse all of the
		// text, but when both assign a non-null style to a piece of code, the
		// overlay wins, unless the combine argument was true and not overridden,
		// or state.overlay.combineTokens was true, in which case the styles are
		// combined.

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.overlayMode = function(base, overlay, combine) {
		  return {
		    startState: function() {
		      return {
		        base: CodeMirror.startState(base),
		        overlay: CodeMirror.startState(overlay),
		        basePos: 0, baseCur: null,
		        overlayPos: 0, overlayCur: null,
		        streamSeen: null
		      };
		    },
		    copyState: function(state) {
		      return {
		        base: CodeMirror.copyState(base, state.base),
		        overlay: CodeMirror.copyState(overlay, state.overlay),
		        basePos: state.basePos, baseCur: null,
		        overlayPos: state.overlayPos, overlayCur: null
		      };
		    },

token: function(stream, state) {
		      if (stream != state.streamSeen ||
		          Math.min(state.basePos, state.overlayPos) < stream.start) {
		        state.streamSeen = stream;
		        state.basePos = state.overlayPos = stream.start;
		      }

if (stream.start == state.basePos) {
		        state.baseCur = base.token(stream, state.base);
		        state.basePos = stream.pos;
		      }
		      if (stream.start == state.overlayPos) {
		        stream.pos = stream.start;
		        state.overlayCur = overlay.token(stream, state.overlay);
		        state.overlayPos = stream.pos;
		      }
		      stream.pos = Math.min(state.basePos, state.overlayPos);

// state.overlay.combineTokens always takes precedence over combine,
		      // unless set to null
		      if (state.overlayCur == null) return state.baseCur;
		      else if (state.baseCur != null &&
		               state.overlay.combineTokens ||
		               combine && state.overlay.combineTokens == null)
		        return state.baseCur + " " + state.overlayCur;
		      else return state.overlayCur;
		    },

indent: base.indent && function(state, textAfter, line) {
		      return base.indent(state.base, textAfter, line);
		    },
		    electricChars: base.electricChars,

innerMode: function(state) { return {state: state.base, mode: base}; },

blankLine: function(state) {
		      var baseToken, overlayToken;
		      if (base.blankLine) baseToken = base.blankLine(state.base);
		      if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);

return overlayToken == null ?
		        baseToken :
		        (combine && baseToken != null ? baseToken + " " + overlayToken : overlayToken);
		    }
		  };
		};

}); 
	} ());
	return overlay.exports;
}
/* Injected with object hook! */

var coffeescript = {exports: {}};/* Injected with object hook! */

var hasRequiredCoffeescript;

function requireCoffeescript () {
	if (hasRequiredCoffeescript) return coffeescript.exports;
	hasRequiredCoffeescript = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

/**
		 * Link to the project's GitHub page:
		 * https://github.com/pickhardt/coffeescript-codemirror-mode
		 */
		(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.defineMode("coffeescript", function(conf, parserConf) {
		  var ERRORCLASS = "error";

function wordRegexp(words) {
		    return new RegExp("^((" + words.join(")|(") + "))\\b");
		  }

var operators = /^(?:->|=>|\+[+=]?|-[\-=]?|\*[\*=]?|\/[\/=]?|[=!]=|<[><]?=?|>>?=?|%=?|&=?|\|=?|\^=?|\~|!|\?|(or|and|\|\||&&|\?)=)/;
		  var delimiters = /^(?:[()\[\]{},:`=;]|\.\.?\.?)/;
		  var identifiers = /^[_A-Za-z$][_A-Za-z$0-9]*/;
		  var atProp = /^@[_A-Za-z$][_A-Za-z$0-9]*/;

var wordOperators = wordRegexp(["and", "or", "not",
		                                  "is", "isnt", "in",
		                                  "instanceof", "typeof"]);
		  var indentKeywords = ["for", "while", "loop", "if", "unless", "else",
		                        "switch", "try", "catch", "finally", "class"];
		  var commonKeywords = ["break", "by", "continue", "debugger", "delete",
		                        "do", "in", "of", "new", "return", "then",
		                        "this", "@", "throw", "when", "until", "extends"];

var keywords = wordRegexp(indentKeywords.concat(commonKeywords));

indentKeywords = wordRegexp(indentKeywords);

// Tokenizers
		  function tokenBase(stream, state) {
		    // Handle scope changes
		    if (stream.sol()) {
		      if (state.scope.align === null) state.scope.align = false;
		      var scopeOffset = state.scope.offset;
		      if (stream.eatSpace()) {
		        var lineOffset = stream.indentation();
		        if (lineOffset > scopeOffset && state.scope.type == "coffee") {
		          return "indent";
		        } else if (lineOffset < scopeOffset) {
		          return "dedent";
		        }
		        return null;
		      } else {
		        if (scopeOffset > 0) {
		          dedent(stream, state);
		        }
		      }
		    }
		    if (stream.eatSpace()) {
		      return null;
		    }

var ch = stream.peek();

// Handle docco title comment (single line)
		    if (stream.match("####")) {
		      stream.skipToEnd();
		      return "comment";
		    }

// Handle multi line comments
		    if (stream.match("###")) {
		      state.tokenize = longComment;
		      return state.tokenize(stream, state);
		    }

// Single line comment
		    if (ch === "#") {
		      stream.skipToEnd();
		      return "comment";
		    }

// Handle number literals
		    if (stream.match(/^-?[0-9\.]/, false)) {
		      var floatLiteral = false;
		      // Floats
		      if (stream.match(/^-?\d*\.\d+(e[\+\-]?\d+)?/i)) {
		        floatLiteral = true;
		      }
		      if (stream.match(/^-?\d+\.\d*/)) {
		        floatLiteral = true;
		      }
		      if (stream.match(/^-?\.\d+/)) {
		        floatLiteral = true;
		      }

if (floatLiteral) {
		        // prevent from getting extra . on 1..
		        if (stream.peek() == "."){
		          stream.backUp(1);
		        }
		        return "number";
		      }
		      // Integers
		      var intLiteral = false;
		      // Hex
		      if (stream.match(/^-?0x[0-9a-f]+/i)) {
		        intLiteral = true;
		      }
		      // Decimal
		      if (stream.match(/^-?[1-9]\d*(e[\+\-]?\d+)?/)) {
		        intLiteral = true;
		      }
		      // Zero by itself with no other piece of number.
		      if (stream.match(/^-?0(?![\dx])/i)) {
		        intLiteral = true;
		      }
		      if (intLiteral) {
		        return "number";
		      }
		    }

// Handle strings
		    if (stream.match(stringPrefixes)) {
		      state.tokenize = tokenFactory(stream.current(), false, "string");
		      return state.tokenize(stream, state);
		    }
		    // Handle regex literals
		    if (stream.match(regexPrefixes)) {
		      if (stream.current() != "/" || stream.match(/^.*\//, false)) { // prevent highlight of division
		        state.tokenize = tokenFactory(stream.current(), true, "string-2");
		        return state.tokenize(stream, state);
		      } else {
		        stream.backUp(1);
		      }
		    }

// Handle operators and delimiters
		    if (stream.match(operators) || stream.match(wordOperators)) {
		      return "operator";
		    }
		    if (stream.match(delimiters)) {
		      return "punctuation";
		    }

if (stream.match(constants)) {
		      return "atom";
		    }

if (stream.match(atProp) || state.prop && stream.match(identifiers)) {
		      return "property";
		    }

if (stream.match(keywords)) {
		      return "keyword";
		    }

if (stream.match(identifiers)) {
		      return "variable";
		    }

// Handle non-detected items
		    stream.next();
		    return ERRORCLASS;
		  }

function tokenLexer(stream, state) {
		    var style = state.tokenize(stream, state);
		    var current = stream.current();

// Handle scope changes.
		    if (current === "return") {
		      state.dedent = true;
		    }
		    if (((current === "->" || current === "=>") && stream.eol())
		        || style === "indent") {
		      indent(stream, state);
		    }
		    var delimiter_index = "[({".indexOf(current);
		    if (delimiter_index !== -1) {
		      indent(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
		    }
		    if (indentKeywords.exec(current)){
		      indent(stream, state);
		    }
		    if (current == "then"){
		      dedent(stream, state);
		    }

if (style === "dedent") {
		      if (dedent(stream, state)) {
		        return ERRORCLASS;
		      }
		    }
		    delimiter_index = "])}".indexOf(current);
		    if (delimiter_index !== -1) {
		      while (state.scope.type == "coffee" && state.scope.prev)
		        state.scope = state.scope.prev;
		      if (state.scope.type == current)
		        state.scope = state.scope.prev;
		    }
		    if (state.dedent && stream.eol()) {
		      if (state.scope.type == "coffee" && state.scope.prev)
		        state.scope = state.scope.prev;
		      state.dedent = false;
		    }

return style;
		  }

var external = {
		    startState: function(basecolumn) {
		      return {
		        tokenize: tokenBase,
		        scope: {offset:basecolumn || 0, type:"coffee", prev: null, align: false},
		        prop: false,
		        dedent: 0
		      };
		    },

token: function(stream, state) {
		      var fillAlign = state.scope.align === null && state.scope;
		      if (fillAlign && stream.sol()) fillAlign.align = false;

var style = tokenLexer(stream, state);
		      if (style && style != "comment") {
		        if (fillAlign) fillAlign.align = true;
		        state.prop = style == "punctuation" && stream.current() == ".";
		      }

return style;
		    },

indent: function(state, text) {
		      if (state.tokenize != tokenBase) return 0;
		      var scope = state.scope;
		      var closer = text && "])}".indexOf(text.charAt(0)) > -1;
		      if (closer) while (scope.type == "coffee" && scope.prev) scope = scope.prev;
		      var closes = closer && scope.type === text.charAt(0);
		      if (scope.align)
		        return scope.alignOffset - (closes ? 1 : 0);
		      else
		        return (closes ? scope.prev : scope).offset;
		    },

lineComment: "#",
		    fold: "indent"
		  };
		  return external;
		});

// IANA registered media type
		// https://www.iana.org/assignments/media-types/
		CodeMirror.defineMIME("application/vnd.coffeescript", "coffeescript");

CodeMirror.defineMIME("text/x-coffeescript", "coffeescript");
		CodeMirror.defineMIME("text/coffeescript", "coffeescript");

}); 
	} ());
	return coffeescript.exports;
}
/* Injected with object hook! */

var stylus = {exports: {}};/* Injected with object hook! */

var hasRequiredStylus;

function requireStylus () {
	if (hasRequiredStylus) return stylus.exports;
	hasRequiredStylus = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

// Stylus mode created by Dmitry Kiselyov http://git.io/AaRB

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.defineMode("stylus", function(config) {
		    var indentUnit = config.indentUnit,
		        indentUnitString = '',
		        tagKeywords = keySet(tagKeywords_),
		        tagVariablesRegexp = /^(a|b|i|s|col|em)$/i,
		        propertyKeywords = keySet(propertyKeywords_),
		        nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_),
		        valueKeywords = keySet(valueKeywords_),
		        colorKeywords = keySet(colorKeywords_),
		        documentTypes = keySet(documentTypes_),
		        documentTypesRegexp = wordRegexp(documentTypes_),
		        mediaFeatures = keySet(mediaFeatures_),
		        mediaTypes = keySet(mediaTypes_),
		        fontProperties = keySet(fontProperties_),
		        operatorsRegexp = /^\s*([.]{2,3}|&&|\|\||\*\*|[?!=:]?=|[-+*\/%<>]=?|\?:|\~)/,
		        wordOperatorKeywordsRegexp = wordRegexp(wordOperatorKeywords_),
		        blockKeywords = keySet(blockKeywords_),
		        vendorPrefixesRegexp = new RegExp(/^\-(moz|ms|o|webkit)-/i),
		        commonAtoms = keySet(commonAtoms_),
		        firstWordMatch = "",
		        states = {},
		        ch,
		        style,
		        type,
		        override;

while (indentUnitString.length < indentUnit) indentUnitString += ' ';

/**
		     * Tokenizers
		     */
		    function tokenBase(stream, state) {
		      firstWordMatch = stream.string.match(/(^[\w-]+\s*=\s*$)|(^\s*[\w-]+\s*=\s*[\w-])|(^\s*(\.|#|@|\$|\&|\[|\d|\+|::?|\{|\>|~|\/)?\s*[\w-]*([a-z0-9-]|\*|\/\*)(\(|,)?)/);
		      state.context.line.firstWord = firstWordMatch ? firstWordMatch[0].replace(/^\s*/, "") : "";
		      state.context.line.indent = stream.indentation();
		      ch = stream.peek();

// Line comment
		      if (stream.match("//")) {
		        stream.skipToEnd();
		        return ["comment", "comment"];
		      }
		      // Block comment
		      if (stream.match("/*")) {
		        state.tokenize = tokenCComment;
		        return tokenCComment(stream, state);
		      }
		      // String
		      if (ch == "\"" || ch == "'") {
		        stream.next();
		        state.tokenize = tokenString(ch);
		        return state.tokenize(stream, state);
		      }
		      // Def
		      if (ch == "@") {
		        stream.next();
		        stream.eatWhile(/[\w\\-]/);
		        return ["def", stream.current()];
		      }
		      // ID selector or Hex color
		      if (ch == "#") {
		        stream.next();
		        // Hex color
		        if (stream.match(/^[0-9a-f]{3}([0-9a-f]([0-9a-f]{2}){0,2})?\b(?!-)/i)) {
		          return ["atom", "atom"];
		        }
		        // ID selector
		        if (stream.match(/^[a-z][\w-]*/i)) {
		          return ["builtin", "hash"];
		        }
		      }
		      // Vendor prefixes
		      if (stream.match(vendorPrefixesRegexp)) {
		        return ["meta", "vendor-prefixes"];
		      }
		      // Numbers
		      if (stream.match(/^-?[0-9]?\.?[0-9]/)) {
		        stream.eatWhile(/[a-z%]/i);
		        return ["number", "unit"];
		      }
		      // !important|optional
		      if (ch == "!") {
		        stream.next();
		        return [stream.match(/^(important|optional)/i) ? "keyword": "operator", "important"];
		      }
		      // Class
		      if (ch == "." && stream.match(/^\.[a-z][\w-]*/i)) {
		        return ["qualifier", "qualifier"];
		      }
		      // url url-prefix domain regexp
		      if (stream.match(documentTypesRegexp)) {
		        if (stream.peek() == "(") state.tokenize = tokenParenthesized;
		        return ["property", "word"];
		      }
		      // Mixins / Functions
		      if (stream.match(/^[a-z][\w-]*\(/i)) {
		        stream.backUp(1);
		        return ["keyword", "mixin"];
		      }
		      // Block mixins
		      if (stream.match(/^(\+|-)[a-z][\w-]*\(/i)) {
		        stream.backUp(1);
		        return ["keyword", "block-mixin"];
		      }
		      // Parent Reference BEM naming
		      if (stream.string.match(/^\s*&/) && stream.match(/^[-_]+[a-z][\w-]*/)) {
		        return ["qualifier", "qualifier"];
		      }
		      // / Root Reference & Parent Reference
		      if (stream.match(/^(\/|&)(-|_|:|\.|#|[a-z])/)) {
		        stream.backUp(1);
		        return ["variable-3", "reference"];
		      }
		      if (stream.match(/^&{1}\s*$/)) {
		        return ["variable-3", "reference"];
		      }
		      // Word operator
		      if (stream.match(wordOperatorKeywordsRegexp)) {
		        return ["operator", "operator"];
		      }
		      // Word
		      if (stream.match(/^\$?[-_]*[a-z0-9]+[\w-]*/i)) {
		        // Variable
		        if (stream.match(/^(\.|\[)[\w-\'\"\]]+/i, false)) {
		          if (!wordIsTag(stream.current())) {
		            stream.match('.');
		            return ["variable-2", "variable-name"];
		          }
		        }
		        return ["variable-2", "word"];
		      }
		      // Operators
		      if (stream.match(operatorsRegexp)) {
		        return ["operator", stream.current()];
		      }
		      // Delimiters
		      if (/[:;,{}\[\]]/.test(ch)) {
		        stream.next();
		        return [null, ch];
		      }
		      // Non-detected items
		      stream.next();
		      return [null, null];
		    }

/**
		     * Token comment
		     */
		    function tokenCComment(stream, state) {
		      var maybeEnd = false, ch;
		      while ((ch = stream.next()) != null) {
		        if (maybeEnd && ch == "/") {
		          state.tokenize = null;
		          break;
		        }
		        maybeEnd = (ch == "*");
		      }
		      return ["comment", "comment"];
		    }

/**
		     * Token string
		     */
		    function tokenString(quote) {
		      return function(stream, state) {
		        var escaped = false, ch;
		        while ((ch = stream.next()) != null) {
		          if (ch == quote && !escaped) {
		            if (quote == ")") stream.backUp(1);
		            break;
		          }
		          escaped = !escaped && ch == "\\";
		        }
		        if (ch == quote || !escaped && quote != ")") state.tokenize = null;
		        return ["string", "string"];
		      };
		    }

/**
		     * Token parenthesized
		     */
		    function tokenParenthesized(stream, state) {
		      stream.next(); // Must be "("
		      if (!stream.match(/\s*[\"\')]/, false))
		        state.tokenize = tokenString(")");
		      else
		        state.tokenize = null;
		      return [null, "("];
		    }

/**
		     * Context management
		     */
		    function Context(type, indent, prev, line) {
		      this.type = type;
		      this.indent = indent;
		      this.prev = prev;
		      this.line = line || {firstWord: "", indent: 0};
		    }

function pushContext(state, stream, type, indent) {
		      indent = indent >= 0 ? indent : indentUnit;
		      state.context = new Context(type, stream.indentation() + indent, state.context);
		      return type;
		    }

function popContext(state, currentIndent) {
		      var contextIndent = state.context.indent - indentUnit;
		      currentIndent = currentIndent || false;
		      state.context = state.context.prev;
		      if (currentIndent) state.context.indent = contextIndent;
		      return state.context.type;
		    }

function pass(type, stream, state) {
		      return states[state.context.type](type, stream, state);
		    }

function popAndPass(type, stream, state, n) {
		      for (var i = 1; i > 0; i--)
		        state.context = state.context.prev;
		      return pass(type, stream, state);
		    }

/**
		     * Parser
		     */
		    function wordIsTag(word) {
		      return word.toLowerCase() in tagKeywords;
		    }

function wordIsProperty(word) {
		      word = word.toLowerCase();
		      return word in propertyKeywords || word in fontProperties;
		    }

function wordIsBlock(word) {
		      return word.toLowerCase() in blockKeywords;
		    }

function wordIsVendorPrefix(word) {
		      return word.toLowerCase().match(vendorPrefixesRegexp);
		    }

function wordAsValue(word) {
		      var wordLC = word.toLowerCase();
		      var override = "variable-2";
		      if (wordIsTag(word)) override = "tag";
		      else if (wordIsBlock(word)) override = "block-keyword";
		      else if (wordIsProperty(word)) override = "property";
		      else if (wordLC in valueKeywords || wordLC in commonAtoms) override = "atom";
		      else if (wordLC == "return" || wordLC in colorKeywords) override = "keyword";

// Font family
		      else if (word.match(/^[A-Z]/)) override = "string";
		      return override;
		    }

function typeIsBlock(type, stream) {
		      return ((endOfLine(stream) && (type == "{" || type == "]" || type == "hash" || type == "qualifier")) || type == "block-mixin");
		    }

function typeIsInterpolation(type, stream) {
		      return type == "{" && stream.match(/^\s*\$?[\w-]+/i, false);
		    }

function typeIsPseudo(type, stream) {
		      return type == ":" && stream.match(/^[a-z-]+/, false);
		    }

function startOfLine(stream) {
		      return stream.sol() || stream.string.match(new RegExp("^\\s*" + escapeRegExp(stream.current())));
		    }

function endOfLine(stream) {
		      return stream.eol() || stream.match(/^\s*$/, false);
		    }

function firstWordOfLine(line) {
		      var re = /^\s*[-_]*[a-z0-9]+[\w-]*/i;
		      var result = typeof line == "string" ? line.match(re) : line.string.match(re);
		      return result ? result[0].replace(/^\s*/, "") : "";
		    }

/**
		     * Block
		     */
		    states.block = function(type, stream, state) {
		      if ((type == "comment" && startOfLine(stream)) ||
		          (type == "," && endOfLine(stream)) ||
		          type == "mixin") {
		        return pushContext(state, stream, "block", 0);
		      }
		      if (typeIsInterpolation(type, stream)) {
		        return pushContext(state, stream, "interpolation");
		      }
		      if (endOfLine(stream) && type == "]") {
		        if (!/^\s*(\.|#|:|\[|\*|&)/.test(stream.string) && !wordIsTag(firstWordOfLine(stream))) {
		          return pushContext(state, stream, "block", 0);
		        }
		      }
		      if (typeIsBlock(type, stream)) {
		        return pushContext(state, stream, "block");
		      }
		      if (type == "}" && endOfLine(stream)) {
		        return pushContext(state, stream, "block", 0);
		      }
		      if (type == "variable-name") {
		        if (stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/) || wordIsBlock(firstWordOfLine(stream))) {
		          return pushContext(state, stream, "variableName");
		        }
		        else {
		          return pushContext(state, stream, "variableName", 0);
		        }
		      }
		      if (type == "=") {
		        if (!endOfLine(stream) && !wordIsBlock(firstWordOfLine(stream))) {
		          return pushContext(state, stream, "block", 0);
		        }
		        return pushContext(state, stream, "block");
		      }
		      if (type == "*") {
		        if (endOfLine(stream) || stream.match(/\s*(,|\.|#|\[|:|{)/,false)) {
		          override = "tag";
		          return pushContext(state, stream, "block");
		        }
		      }
		      if (typeIsPseudo(type, stream)) {
		        return pushContext(state, stream, "pseudo");
		      }
		      if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {
		        return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");
		      }
		      if (/@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {
		        return pushContext(state, stream, "keyframes");
		      }
		      if (/@extends?/.test(type)) {
		        return pushContext(state, stream, "extend", 0);
		      }
		      if (type && type.charAt(0) == "@") {

// Property Lookup
		        if (stream.indentation() > 0 && wordIsProperty(stream.current().slice(1))) {
		          override = "variable-2";
		          return "block";
		        }
		        if (/(@import|@require|@charset)/.test(type)) {
		          return pushContext(state, stream, "block", 0);
		        }
		        return pushContext(state, stream, "block");
		      }
		      if (type == "reference" && endOfLine(stream)) {
		        return pushContext(state, stream, "block");
		      }
		      if (type == "(") {
		        return pushContext(state, stream, "parens");
		      }

if (type == "vendor-prefixes") {
		        return pushContext(state, stream, "vendorPrefixes");
		      }
		      if (type == "word") {
		        var word = stream.current();
		        override = wordAsValue(word);

if (override == "property") {
		          if (startOfLine(stream)) {
		            return pushContext(state, stream, "block", 0);
		          } else {
		            override = "atom";
		            return "block";
		          }
		        }

if (override == "tag") {

// tag is a css value
		          if (/embed|menu|pre|progress|sub|table/.test(word)) {
		            if (wordIsProperty(firstWordOfLine(stream))) {
		              override = "atom";
		              return "block";
		            }
		          }

// tag is an attribute
		          if (stream.string.match(new RegExp("\\[\\s*" + word + "|" + word +"\\s*\\]"))) {
		            override = "atom";
		            return "block";
		          }

// tag is a variable
		          if (tagVariablesRegexp.test(word)) {
		            if ((startOfLine(stream) && stream.string.match(/=/)) ||
		                (!startOfLine(stream) &&
		                 !stream.string.match(/^(\s*\.|#|\&|\[|\/|>|\*)/) &&
		                 !wordIsTag(firstWordOfLine(stream)))) {
		              override = "variable-2";
		              if (wordIsBlock(firstWordOfLine(stream)))  return "block";
		              return pushContext(state, stream, "block", 0);
		            }
		          }

if (endOfLine(stream)) return pushContext(state, stream, "block");
		        }
		        if (override == "block-keyword") {
		          override = "keyword";

// Postfix conditionals
		          if (stream.current(/(if|unless)/) && !startOfLine(stream)) {
		            return "block";
		          }
		          return pushContext(state, stream, "block");
		        }
		        if (word == "return") return pushContext(state, stream, "block", 0);

// Placeholder selector
		        if (override == "variable-2" && stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/)) {
		          return pushContext(state, stream, "block");
		        }
		      }
		      return state.context.type;
		    };

/**
		     * Parens
		     */
		    states.parens = function(type, stream, state) {
		      if (type == "(") return pushContext(state, stream, "parens");
		      if (type == ")") {
		        if (state.context.prev.type == "parens") {
		          return popContext(state);
		        }
		        if ((stream.string.match(/^[a-z][\w-]*$/i) && endOfLine(stream)) ||
		            wordIsBlock(firstWordOfLine(stream)) ||
		            /(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(firstWordOfLine(stream)) ||
		            (!stream.string.match(/^-?[a-z][\w-\.\[\]\'\"]*\s*=/) &&
		             wordIsTag(firstWordOfLine(stream)))) {
		          return pushContext(state, stream, "block");
		        }
		        if (stream.string.match(/^[\$-]?[a-z][\w-\.\[\]\'\"]*\s*=/) ||
		            stream.string.match(/^\s*(\(|$|[0-9])/) ||
		            stream.string.match(/^\s+[a-z][\w-]*\(/i) ||
		            stream.string.match(/^\s+[\$-]?[a-z]/i)) {
		          return pushContext(state, stream, "block", 0);
		        }
		        if (endOfLine(stream)) return pushContext(state, stream, "block");
		        else return pushContext(state, stream, "block", 0);
		      }
		      if (type && type.charAt(0) == "@" && wordIsProperty(stream.current().slice(1))) {
		        override = "variable-2";
		      }
		      if (type == "word") {
		        var word = stream.current();
		        override = wordAsValue(word);
		        if (override == "tag" && tagVariablesRegexp.test(word)) {
		          override = "variable-2";
		        }
		        if (override == "property" || word == "to") override = "atom";
		      }
		      if (type == "variable-name") {
		        return pushContext(state, stream, "variableName");
		      }
		      if (typeIsPseudo(type, stream)) {
		        return pushContext(state, stream, "pseudo");
		      }
		      return state.context.type;
		    };

/**
		     * Vendor prefixes
		     */
		    states.vendorPrefixes = function(type, stream, state) {
		      if (type == "word") {
		        override = "property";
		        return pushContext(state, stream, "block", 0);
		      }
		      return popContext(state);
		    };

/**
		     * Pseudo
		     */
		    states.pseudo = function(type, stream, state) {
		      if (!wordIsProperty(firstWordOfLine(stream.string))) {
		        stream.match(/^[a-z-]+/);
		        override = "variable-3";
		        if (endOfLine(stream)) return pushContext(state, stream, "block");
		        return popContext(state);
		      }
		      return popAndPass(type, stream, state);
		    };

/**
		     * atBlock
		     */
		    states.atBlock = function(type, stream, state) {
		      if (type == "(") return pushContext(state, stream, "atBlock_parens");
		      if (typeIsBlock(type, stream)) {
		        return pushContext(state, stream, "block");
		      }
		      if (typeIsInterpolation(type, stream)) {
		        return pushContext(state, stream, "interpolation");
		      }
		      if (type == "word") {
		        var word = stream.current().toLowerCase();
		        if (/^(only|not|and|or)$/.test(word))
		          override = "keyword";
		        else if (documentTypes.hasOwnProperty(word))
		          override = "tag";
		        else if (mediaTypes.hasOwnProperty(word))
		          override = "attribute";
		        else if (mediaFeatures.hasOwnProperty(word))
		          override = "property";
		        else if (nonStandardPropertyKeywords.hasOwnProperty(word))
		          override = "string-2";
		        else override = wordAsValue(stream.current());
		        if (override == "tag" && endOfLine(stream)) {
		          return pushContext(state, stream, "block");
		        }
		      }
		      if (type == "operator" && /^(not|and|or)$/.test(stream.current())) {
		        override = "keyword";
		      }
		      return state.context.type;
		    };

states.atBlock_parens = function(type, stream, state) {
		      if (type == "{" || type == "}") return state.context.type;
		      if (type == ")") {
		        if (endOfLine(stream)) return pushContext(state, stream, "block");
		        else return pushContext(state, stream, "atBlock");
		      }
		      if (type == "word") {
		        var word = stream.current().toLowerCase();
		        override = wordAsValue(word);
		        if (/^(max|min)/.test(word)) override = "property";
		        if (override == "tag") {
		          tagVariablesRegexp.test(word) ? override = "variable-2" : override = "atom";
		        }
		        return state.context.type;
		      }
		      return states.atBlock(type, stream, state);
		    };

/**
		     * Keyframes
		     */
		    states.keyframes = function(type, stream, state) {
		      if (stream.indentation() == "0" && ((type == "}" && startOfLine(stream)) || type == "]" || type == "hash"
		                                          || type == "qualifier" || wordIsTag(stream.current()))) {
		        return popAndPass(type, stream, state);
		      }
		      if (type == "{") return pushContext(state, stream, "keyframes");
		      if (type == "}") {
		        if (startOfLine(stream)) return popContext(state, true);
		        else return pushContext(state, stream, "keyframes");
		      }
		      if (type == "unit" && /^[0-9]+\%$/.test(stream.current())) {
		        return pushContext(state, stream, "keyframes");
		      }
		      if (type == "word") {
		        override = wordAsValue(stream.current());
		        if (override == "block-keyword") {
		          override = "keyword";
		          return pushContext(state, stream, "keyframes");
		        }
		      }
		      if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {
		        return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");
		      }
		      if (type == "mixin") {
		        return pushContext(state, stream, "block", 0);
		      }
		      return state.context.type;
		    };

/**
		     * Interpolation
		     */
		    states.interpolation = function(type, stream, state) {
		      if (type == "{") popContext(state) && pushContext(state, stream, "block");
		      if (type == "}") {
		        if (stream.string.match(/^\s*(\.|#|:|\[|\*|&|>|~|\+|\/)/i) ||
		            (stream.string.match(/^\s*[a-z]/i) && wordIsTag(firstWordOfLine(stream)))) {
		          return pushContext(state, stream, "block");
		        }
		        if (!stream.string.match(/^(\{|\s*\&)/) ||
		            stream.match(/\s*[\w-]/,false)) {
		          return pushContext(state, stream, "block", 0);
		        }
		        return pushContext(state, stream, "block");
		      }
		      if (type == "variable-name") {
		        return pushContext(state, stream, "variableName", 0);
		      }
		      if (type == "word") {
		        override = wordAsValue(stream.current());
		        if (override == "tag") override = "atom";
		      }
		      return state.context.type;
		    };

/**
		     * Extend/s
		     */
		    states.extend = function(type, stream, state) {
		      if (type == "[" || type == "=") return "extend";
		      if (type == "]") return popContext(state);
		      if (type == "word") {
		        override = wordAsValue(stream.current());
		        return "extend";
		      }
		      return popContext(state);
		    };

/**
		     * Variable name
		     */
		    states.variableName = function(type, stream, state) {
		      if (type == "string" || type == "[" || type == "]" || stream.current().match(/^(\.|\$)/)) {
		        if (stream.current().match(/^\.[\w-]+/i)) override = "variable-2";
		        return "variableName";
		      }
		      return popAndPass(type, stream, state);
		    };

return {
		      startState: function(base) {
		        return {
		          tokenize: null,
		          state: "block",
		          context: new Context("block", base || 0, null)
		        };
		      },
		      token: function(stream, state) {
		        if (!state.tokenize && stream.eatSpace()) return null;
		        style = (state.tokenize || tokenBase)(stream, state);
		        if (style && typeof style == "object") {
		          type = style[1];
		          style = style[0];
		        }
		        override = style;
		        state.state = states[state.state](type, stream, state);
		        return override;
		      },
		      indent: function(state, textAfter, line) {

var cx = state.context,
		            ch = textAfter && textAfter.charAt(0),
		            indent = cx.indent,
		            lineFirstWord = firstWordOfLine(textAfter),
		            lineIndent = line.match(/^\s*/)[0].replace(/\t/g, indentUnitString).length,
		            prevLineFirstWord = state.context.prev ? state.context.prev.line.firstWord : "",
		            prevLineIndent = state.context.prev ? state.context.prev.line.indent : lineIndent;

if (cx.prev &&
		            (ch == "}" && (cx.type == "block" || cx.type == "atBlock" || cx.type == "keyframes") ||
		             ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
		             ch == "{" && (cx.type == "at"))) {
		          indent = cx.indent - indentUnit;
		        } else if (!(/(\})/.test(ch))) {
		          if (/@|\$|\d/.test(ch) ||
		              /^\{/.test(textAfter) ||
		/^\s*\/(\/|\*)/.test(textAfter) ||
		              /^\s*\/\*/.test(prevLineFirstWord) ||
		              /^\s*[\w-\.\[\]\'\"]+\s*(\?|:|\+)?=/i.test(textAfter) ||
		/^(\+|-)?[a-z][\w-]*\(/i.test(textAfter) ||
		/^return/.test(textAfter) ||
		              wordIsBlock(lineFirstWord)) {
		            indent = lineIndent;
		          } else if (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(ch) || wordIsTag(lineFirstWord)) {
		            if (/\,\s*$/.test(prevLineFirstWord)) {
		              indent = prevLineIndent;
		            } else if (/^\s+/.test(line) && (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(prevLineFirstWord) || wordIsTag(prevLineFirstWord))) {
		              indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;
		            } else {
		              indent = lineIndent;
		            }
		          } else if (!/,\s*$/.test(line) && (wordIsVendorPrefix(lineFirstWord) || wordIsProperty(lineFirstWord))) {
		            if (wordIsBlock(prevLineFirstWord)) {
		              indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;
		            } else if (/^\{/.test(prevLineFirstWord)) {
		              indent = lineIndent <= prevLineIndent ? lineIndent : prevLineIndent + indentUnit;
		            } else if (wordIsVendorPrefix(prevLineFirstWord) || wordIsProperty(prevLineFirstWord)) {
		              indent = lineIndent >= prevLineIndent ? prevLineIndent : lineIndent;
		            } else if (/^(\.|#|:|\[|\*|&|@|\+|\-|>|~|\/)/.test(prevLineFirstWord) ||
		                      /=\s*$/.test(prevLineFirstWord) ||
		                      wordIsTag(prevLineFirstWord) ||
		                      /^\$[\w-\.\[\]\'\"]/.test(prevLineFirstWord)) {
		              indent = prevLineIndent + indentUnit;
		            } else {
		              indent = lineIndent;
		            }
		          }
		        }
		        return indent;
		      },
		      electricChars: "}",
		      blockCommentStart: "/*",
		      blockCommentEnd: "*/",
		      blockCommentContinue: " * ",
		      lineComment: "//",
		      fold: "indent"
		    };
		  });

// developer.mozilla.org/en-US/docs/Web/HTML/Element
		  var tagKeywords_ = ["a","abbr","address","area","article","aside","audio", "b", "base","bdi", "bdo","bgsound","blockquote","body","br","button","canvas","caption","cite", "code","col","colgroup","data","datalist","dd","del","details","dfn","div", "dl","dt","em","embed","fieldset","figcaption","figure","footer","form","h1", "h2","h3","h4","h5","h6","head","header","hgroup","hr","html","i","iframe", "img","input","ins","kbd","keygen","label","legend","li","link","main","map", "mark","marquee","menu","menuitem","meta","meter","nav","nobr","noframes", "noscript","object","ol","optgroup","option","output","p","param","pre", "progress","q","rp","rt","ruby","s","samp","script","section","select", "small","source","span","strong","style","sub","summary","sup","table","tbody","td","textarea","tfoot","th","thead","time","tr","track", "u","ul","var","video"];

// github.com/codemirror/CodeMirror/blob/master/mode/css/css.js
		  // Note, "url-prefix" should precede "url" in order to match correctly in documentTypesRegexp
		  var documentTypes_ = ["domain", "regexp", "url-prefix", "url"];
		  var mediaTypes_ = ["all","aural","braille","handheld","print","projection","screen","tty","tv","embossed"];
		  var mediaFeatures_ = ["width","min-width","max-width","height","min-height","max-height","device-width","min-device-width","max-device-width","device-height","min-device-height","max-device-height","aspect-ratio","min-aspect-ratio","max-aspect-ratio","device-aspect-ratio","min-device-aspect-ratio","max-device-aspect-ratio","color","min-color","max-color","color-index","min-color-index","max-color-index","monochrome","min-monochrome","max-monochrome","resolution","min-resolution","max-resolution","scan","grid","dynamic-range","video-dynamic-range"];
		  var propertyKeywords_ = ["align-content","align-items","align-self","alignment-adjust","alignment-baseline","anchor-point","animation","animation-delay","animation-direction","animation-duration","animation-fill-mode","animation-iteration-count","animation-name","animation-play-state","animation-timing-function","appearance","azimuth","backface-visibility","background","background-attachment","background-clip","background-color","background-image","background-origin","background-position","background-repeat","background-size","baseline-shift","binding","bleed","bookmark-label","bookmark-level","bookmark-state","bookmark-target","border","border-bottom","border-bottom-color","border-bottom-left-radius","border-bottom-right-radius","border-bottom-style","border-bottom-width","border-collapse","border-color","border-image","border-image-outset","border-image-repeat","border-image-slice","border-image-source","border-image-width","border-left","border-left-color","border-left-style","border-left-width","border-radius","border-right","border-right-color","border-right-style","border-right-width","border-spacing","border-style","border-top","border-top-color","border-top-left-radius","border-top-right-radius","border-top-style","border-top-width","border-width","bottom","box-decoration-break","box-shadow","box-sizing","break-after","break-before","break-inside","caption-side","clear","clip","color","color-profile","column-count","column-fill","column-gap","column-rule","column-rule-color","column-rule-style","column-rule-width","column-span","column-width","columns","content","counter-increment","counter-reset","crop","cue","cue-after","cue-before","cursor","direction","display","dominant-baseline","drop-initial-after-adjust","drop-initial-after-align","drop-initial-before-adjust","drop-initial-before-align","drop-initial-size","drop-initial-value","elevation","empty-cells","fit","fit-position","flex","flex-basis","flex-direction","flex-flow","flex-grow","flex-shrink","flex-wrap","float","float-offset","flow-from","flow-into","font","font-feature-settings","font-family","font-kerning","font-language-override","font-size","font-size-adjust","font-stretch","font-style","font-synthesis","font-variant","font-variant-alternates","font-variant-caps","font-variant-east-asian","font-variant-ligatures","font-variant-numeric","font-variant-position","font-weight","grid","grid-area","grid-auto-columns","grid-auto-flow","grid-auto-position","grid-auto-rows","grid-column","grid-column-end","grid-column-start","grid-row","grid-row-end","grid-row-start","grid-template","grid-template-areas","grid-template-columns","grid-template-rows","hanging-punctuation","height","hyphens","icon","image-orientation","image-rendering","image-resolution","inline-box-align","justify-content","left","letter-spacing","line-break","line-height","line-stacking","line-stacking-ruby","line-stacking-shift","line-stacking-strategy","list-style","list-style-image","list-style-position","list-style-type","margin","margin-bottom","margin-left","margin-right","margin-top","marker-offset","marks","marquee-direction","marquee-loop","marquee-play-count","marquee-speed","marquee-style","max-height","max-width","min-height","min-width","move-to","nav-down","nav-index","nav-left","nav-right","nav-up","object-fit","object-position","opacity","order","orphans","outline","outline-color","outline-offset","outline-style","outline-width","overflow","overflow-style","overflow-wrap","overflow-x","overflow-y","padding","padding-bottom","padding-left","padding-right","padding-top","page","page-break-after","page-break-before","page-break-inside","page-policy","pause","pause-after","pause-before","perspective","perspective-origin","pitch","pitch-range","play-during","position","presentation-level","punctuation-trim","quotes","region-break-after","region-break-before","region-break-inside","region-fragment","rendering-intent","resize","rest","rest-after","rest-before","richness","right","rotation","rotation-point","ruby-align","ruby-overhang","ruby-position","ruby-span","shape-image-threshold","shape-inside","shape-margin","shape-outside","size","speak","speak-as","speak-header","speak-numeral","speak-punctuation","speech-rate","stress","string-set","tab-size","table-layout","target","target-name","target-new","target-position","text-align","text-align-last","text-decoration","text-decoration-color","text-decoration-line","text-decoration-skip","text-decoration-style","text-emphasis","text-emphasis-color","text-emphasis-position","text-emphasis-style","text-height","text-indent","text-justify","text-outline","text-overflow","text-shadow","text-size-adjust","text-space-collapse","text-transform","text-underline-position","text-wrap","top","transform","transform-origin","transform-style","transition","transition-delay","transition-duration","transition-property","transition-timing-function","unicode-bidi","vertical-align","visibility","voice-balance","voice-duration","voice-family","voice-pitch","voice-range","voice-rate","voice-stress","voice-volume","volume","white-space","widows","width","will-change","word-break","word-spacing","word-wrap","z-index","clip-path","clip-rule","mask","enable-background","filter","flood-color","flood-opacity","lighting-color","stop-color","stop-opacity","pointer-events","color-interpolation","color-interpolation-filters","color-rendering","fill","fill-opacity","fill-rule","image-rendering","marker","marker-end","marker-mid","marker-start","shape-rendering","stroke","stroke-dasharray","stroke-dashoffset","stroke-linecap","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","text-rendering","baseline-shift","dominant-baseline","glyph-orientation-horizontal","glyph-orientation-vertical","text-anchor","writing-mode","font-smoothing","osx-font-smoothing"];
		  var nonStandardPropertyKeywords_ = ["scrollbar-arrow-color","scrollbar-base-color","scrollbar-dark-shadow-color","scrollbar-face-color","scrollbar-highlight-color","scrollbar-shadow-color","scrollbar-3d-light-color","scrollbar-track-color","shape-inside","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","zoom"];
		  var fontProperties_ = ["font-family","src","unicode-range","font-variant","font-feature-settings","font-stretch","font-weight","font-style"];
		  var colorKeywords_ = ["aliceblue","antiquewhite","aqua","aquamarine","azure","beige","bisque","black","blanchedalmond","blue","blueviolet","brown","burlywood","cadetblue","chartreuse","chocolate","coral","cornflowerblue","cornsilk","crimson","cyan","darkblue","darkcyan","darkgoldenrod","darkgray","darkgreen","darkkhaki","darkmagenta","darkolivegreen","darkorange","darkorchid","darkred","darksalmon","darkseagreen","darkslateblue","darkslategray","darkturquoise","darkviolet","deeppink","deepskyblue","dimgray","dodgerblue","firebrick","floralwhite","forestgreen","fuchsia","gainsboro","ghostwhite","gold","goldenrod","gray","grey","green","greenyellow","honeydew","hotpink","indianred","indigo","ivory","khaki","lavender","lavenderblush","lawngreen","lemonchiffon","lightblue","lightcoral","lightcyan","lightgoldenrodyellow","lightgray","lightgreen","lightpink","lightsalmon","lightseagreen","lightskyblue","lightslategray","lightsteelblue","lightyellow","lime","limegreen","linen","magenta","maroon","mediumaquamarine","mediumblue","mediumorchid","mediumpurple","mediumseagreen","mediumslateblue","mediumspringgreen","mediumturquoise","mediumvioletred","midnightblue","mintcream","mistyrose","moccasin","navajowhite","navy","oldlace","olive","olivedrab","orange","orangered","orchid","palegoldenrod","palegreen","paleturquoise","palevioletred","papayawhip","peachpuff","peru","pink","plum","powderblue","purple","rebeccapurple","red","rosybrown","royalblue","saddlebrown","salmon","sandybrown","seagreen","seashell","sienna","silver","skyblue","slateblue","slategray","snow","springgreen","steelblue","tan","teal","thistle","tomato","turquoise","violet","wheat","white","whitesmoke","yellow","yellowgreen"];
		  var valueKeywords_ = ["above","absolute","activeborder","additive","activecaption","afar","after-white-space","ahead","alias","all","all-scroll","alphabetic","alternate","always","amharic","amharic-abegede","antialiased","appworkspace","arabic-indic","armenian","asterisks","attr","auto","avoid","avoid-column","avoid-page","avoid-region","background","backwards","baseline","below","bidi-override","binary","bengali","blink","block","block-axis","bold","bolder","border","border-box","both","bottom","break","break-all","break-word","bullets","button","buttonface","buttonhighlight","buttonshadow","buttontext","calc","cambodian","capitalize","caps-lock-indicator","caption","captiontext","caret","cell","center","checkbox","circle","cjk-decimal","cjk-earthly-branch","cjk-heavenly-stem","cjk-ideographic","clear","clip","close-quote","col-resize","collapse","column","compact","condensed","conic-gradient","contain","content","contents","content-box","context-menu","continuous","copy","counter","counters","cover","crop","cross","crosshair","currentcolor","cursive","cyclic","dashed","decimal","decimal-leading-zero","default","default-button","destination-atop","destination-in","destination-out","destination-over","devanagari","disc","discard","disclosure-closed","disclosure-open","document","dot-dash","dot-dot-dash","dotted","double","down","e-resize","ease","ease-in","ease-in-out","ease-out","element","ellipse","ellipsis","embed","end","ethiopic","ethiopic-abegede","ethiopic-abegede-am-et","ethiopic-abegede-gez","ethiopic-abegede-ti-er","ethiopic-abegede-ti-et","ethiopic-halehame-aa-er","ethiopic-halehame-aa-et","ethiopic-halehame-am-et","ethiopic-halehame-gez","ethiopic-halehame-om-et","ethiopic-halehame-sid-et","ethiopic-halehame-so-et","ethiopic-halehame-ti-er","ethiopic-halehame-ti-et","ethiopic-halehame-tig","ethiopic-numeric","ew-resize","expanded","extends","extra-condensed","extra-expanded","fantasy","fast","fill","fixed","flat","flex","footnotes","forwards","from","geometricPrecision","georgian","graytext","groove","gujarati","gurmukhi","hand","hangul","hangul-consonant","hebrew","help","hidden","hide","high","higher","highlight","highlighttext","hiragana","hiragana-iroha","horizontal","hsl","hsla","icon","ignore","inactiveborder","inactivecaption","inactivecaptiontext","infinite","infobackground","infotext","inherit","initial","inline","inline-axis","inline-block","inline-flex","inline-table","inset","inside","intrinsic","invert","italic","japanese-formal","japanese-informal","justify","kannada","katakana","katakana-iroha","keep-all","khmer","korean-hangul-formal","korean-hanja-formal","korean-hanja-informal","landscape","lao","large","larger","left","level","lighter","line-through","linear","linear-gradient","lines","list-item","listbox","listitem","local","logical","loud","lower","lower-alpha","lower-armenian","lower-greek","lower-hexadecimal","lower-latin","lower-norwegian","lower-roman","lowercase","ltr","malayalam","match","matrix","matrix3d","media-play-button","media-slider","media-sliderthumb","media-volume-slider","media-volume-sliderthumb","medium","menu","menulist","menulist-button","menutext","message-box","middle","min-intrinsic","mix","mongolian","monospace","move","multiple","myanmar","n-resize","narrower","ne-resize","nesw-resize","no-close-quote","no-drop","no-open-quote","no-repeat","none","normal","not-allowed","nowrap","ns-resize","numbers","numeric","nw-resize","nwse-resize","oblique","octal","open-quote","optimizeLegibility","optimizeSpeed","oriya","oromo","outset","outside","outside-shape","overlay","overline","padding","padding-box","painted","page","paused","persian","perspective","plus-darker","plus-lighter","pointer","polygon","portrait","pre","pre-line","pre-wrap","preserve-3d","progress","push-button","radial-gradient","radio","read-only","read-write","read-write-plaintext-only","rectangle","region","relative","repeat","repeating-linear-gradient","repeating-radial-gradient","repeating-conic-gradient","repeat-x","repeat-y","reset","reverse","rgb","rgba","ridge","right","rotate","rotate3d","rotateX","rotateY","rotateZ","round","row-resize","rtl","run-in","running","s-resize","sans-serif","scale","scale3d","scaleX","scaleY","scaleZ","scroll","scrollbar","scroll-position","se-resize","searchfield","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","semi-condensed","semi-expanded","separate","serif","show","sidama","simp-chinese-formal","simp-chinese-informal","single","skew","skewX","skewY","skip-white-space","slide","slider-horizontal","slider-vertical","sliderthumb-horizontal","sliderthumb-vertical","slow","small","small-caps","small-caption","smaller","solid","somali","source-atop","source-in","source-out","source-over","space","spell-out","square","square-button","standard","start","static","status-bar","stretch","stroke","sub","subpixel-antialiased","super","sw-resize","symbolic","symbols","table","table-caption","table-cell","table-column","table-column-group","table-footer-group","table-header-group","table-row","table-row-group","tamil","telugu","text","text-bottom","text-top","textarea","textfield","thai","thick","thin","threeddarkshadow","threedface","threedhighlight","threedlightshadow","threedshadow","tibetan","tigre","tigrinya-er","tigrinya-er-abegede","tigrinya-et","tigrinya-et-abegede","to","top","trad-chinese-formal","trad-chinese-informal","translate","translate3d","translateX","translateY","translateZ","transparent","ultra-condensed","ultra-expanded","underline","up","upper-alpha","upper-armenian","upper-greek","upper-hexadecimal","upper-latin","upper-norwegian","upper-roman","uppercase","urdu","url","var","vertical","vertical-text","visible","visibleFill","visiblePainted","visibleStroke","visual","w-resize","wait","wave","wider","window","windowframe","windowtext","words","x-large","x-small","xor","xx-large","xx-small","bicubic","optimizespeed","grayscale","row","row-reverse","wrap","wrap-reverse","column-reverse","flex-start","flex-end","space-between","space-around", "unset"];

var wordOperatorKeywords_ = ["in","and","or","not","is not","is a","is","isnt","defined","if unless"],
		      blockKeywords_ = ["for","if","else","unless", "from", "to"],
		      commonAtoms_ = ["null","true","false","href","title","type","not-allowed","readonly","disabled"],
		      commonDef_ = ["@font-face", "@keyframes", "@media", "@viewport", "@page", "@host", "@supports", "@block", "@css"];

var hintWords = tagKeywords_.concat(documentTypes_,mediaTypes_,mediaFeatures_,
		                                      propertyKeywords_,nonStandardPropertyKeywords_,
		                                      colorKeywords_,valueKeywords_,fontProperties_,
		                                      wordOperatorKeywords_,blockKeywords_,
		                                      commonAtoms_,commonDef_);

function wordRegexp(words) {
		    words = words.sort(function(a,b){return b > a;});
		    return new RegExp("^((" + words.join(")|(") + "))\\b");
		  }

function keySet(array) {
		    var keys = {};
		    for (var i = 0; i < array.length; ++i) keys[array[i]] = true;
		    return keys;
		  }

function escapeRegExp(text) {
		    return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
		  }

CodeMirror.registerHelper("hintWords", "stylus", hintWords);
		  CodeMirror.defineMIME("text/x-styl", "stylus");
		}); 
	} ());
	return stylus.exports;
}
/* Injected with object hook! */

var handlebars = {exports: {}};/* Injected with object hook! */

var simple = {exports: {}};/* Injected with object hook! */

var hasRequiredSimple;

function requireSimple () {
	if (hasRequiredSimple) return simple.exports;
	hasRequiredSimple = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.defineSimpleMode = function(name, states) {
		    CodeMirror.defineMode(name, function(config) {
		      return CodeMirror.simpleMode(config, states);
		    });
		  };

CodeMirror.simpleMode = function(config, states) {
		    ensureState(states, "start");
		    var states_ = {}, meta = states.meta || {}, hasIndentation = false;
		    for (var state in states) if (state != meta && states.hasOwnProperty(state)) {
		      var list = states_[state] = [], orig = states[state];
		      for (var i = 0; i < orig.length; i++) {
		        var data = orig[i];
		        list.push(new Rule(data, states));
		        if (data.indent || data.dedent) hasIndentation = true;
		      }
		    }
		    var mode = {
		      startState: function() {
		        return {state: "start", pending: null,
		                local: null, localState: null,
		                indent: hasIndentation ? [] : null};
		      },
		      copyState: function(state) {
		        var s = {state: state.state, pending: state.pending,
		                 local: state.local, localState: null,
		                 indent: state.indent && state.indent.slice(0)};
		        if (state.localState)
		          s.localState = CodeMirror.copyState(state.local.mode, state.localState);
		        if (state.stack)
		          s.stack = state.stack.slice(0);
		        for (var pers = state.persistentStates; pers; pers = pers.next)
		          s.persistentStates = {mode: pers.mode,
		                                spec: pers.spec,
		                                state: pers.state == state.localState ? s.localState : CodeMirror.copyState(pers.mode, pers.state),
		                                next: s.persistentStates};
		        return s;
		      },
		      token: tokenFunction(states_, config),
		      innerMode: function(state) { return state.local && {mode: state.local.mode, state: state.localState}; },
		      indent: indentFunction(states_, meta)
		    };
		    if (meta) for (var prop in meta) if (meta.hasOwnProperty(prop))
		      mode[prop] = meta[prop];
		    return mode;
		  };

function ensureState(states, name) {
		    if (!states.hasOwnProperty(name))
		      throw new Error("Undefined state " + name + " in simple mode");
		  }

function asToken(val) {
		    if (!val) return null;
		    if (val.apply) return val
		    if (typeof val == "string") return val.replace(/\./g, " ");
		    var result = [];
		    for (var i = 0; i < val.length; i++)
		      result.push(val[i] && val[i].replace(/\./g, " "));
		    return result;
		  }

function Rule(data, states) {
		    if (data.next || data.push) ensureState(states, data.next || data.push);
		    this.regex = toRegex(data.regex);
		    this.token = asToken(data.token);
		    this.data = data;
		  }

function tokenFunction(states, config) {
		    return function(stream, state) {
		      if (state.pending) {
		        var pend = state.pending.shift();
		        if (state.pending.length == 0) state.pending = null;
		        stream.pos += pend.text.length;
		        return pend.token;
		      }

if (state.local) {
		        if (state.local.end && stream.match(state.local.end)) {
		          var tok = state.local.endToken || null;
		          state.local = state.localState = null;
		          return tok;
		        } else {
		          var tok = state.local.mode.token(stream, state.localState), m;
		          if (state.local.endScan && (m = state.local.endScan.exec(stream.current())))
		            stream.pos = stream.start + m.index;
		          return tok;
		        }
		      }

if (rule.data.mode)
		            enterLocalMode(config, state, rule.data.mode, rule.token);
		          if (rule.data.indent)
		            state.indent.push(stream.indentation() + config.indentUnit);
		          if (rule.data.dedent)
		            state.indent.pop();
		          var token = rule.token;
		          if (token && token.apply) token = token(matches);
		          if (matches.length > 2 && rule.token && typeof rule.token != "string") {
		            for (var j = 2; j < matches.length; j++)
		              if (matches[j])
		                (state.pending || (state.pending = [])).push({text: matches[j], token: rule.token[j - 1]});
		            stream.backUp(matches[0].length - (matches[1] ? matches[1].length : 0));
		            return token[0];
		          } else if (token && token.join) {
		            return token[0];
		          } else {
		            return token;
		          }
		        }
		      }
		      stream.next();
		      return null;
		    };
		  }

function cmp(a, b) {
		    if (a === b) return true;
		    if (!a || typeof a != "object" || !b || typeof b != "object") return false;
		    var props = 0;
		    for (var prop in a) if (a.hasOwnProperty(prop)) {
		      if (!b.hasOwnProperty(prop) || !cmp(a[prop], b[prop])) return false;
		      props++;
		    }
		    for (var prop in b) if (b.hasOwnProperty(prop)) props--;
		    return props == 0;
		  }

function enterLocalMode(config, state, spec, token) {
		    var pers;
		    if (spec.persistent) for (var p = state.persistentStates; p && !pers; p = p.next)
		      if (spec.spec ? cmp(spec.spec, p.spec) : spec.mode == p.mode) pers = p;
		    var mode = pers ? pers.mode : spec.mode || CodeMirror.getMode(config, spec.spec);
		    var lState = pers ? pers.state : CodeMirror.startState(mode);
		    if (spec.persistent && !pers)
		      state.persistentStates = {mode: mode, spec: spec.spec, state: lState, next: state.persistentStates};

state.localState = lState;
		    state.local = {mode: mode,
		                   end: spec.end && toRegex(spec.end),
		                   endScan: spec.end && spec.forceEnd !== false && toRegex(spec.end, false),
		                   endToken: token && token.join ? token[token.length - 1] : token};
		  }

function indexOf(val, arr) {
		    for (var i = 0; i < arr.length; i++) if (arr[i] === val) return true;
		  }

function indentFunction(states, meta) {
		    return function(state, textAfter, line) {
		      if (state.local && state.local.mode.indent)
		        return state.local.mode.indent(state.localState, textAfter, line);
		      if (state.indent == null || state.local || meta.dontIndentStates && indexOf(state.state, meta.dontIndentStates) > -1)
		        return CodeMirror.Pass;

var multiplex = {exports: {}};/* Injected with object hook! */

var hasRequiredMultiplex;

function requireMultiplex () {
	if (hasRequiredMultiplex) return multiplex.exports;
	hasRequiredMultiplex = 1;
	(function (module, exports) {
		// CodeMirror, copyright (c) by Marijn Haverbeke and others
		// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
		  mod(requireCodemirror());
		})(function(CodeMirror) {

CodeMirror.multiplexingMode = function(outer /*, others */) {
		  // Others should be {open, close, mode [, delimStyle] [, innerStyle] [, parseDelimiters]} objects
		  var others = Array.prototype.slice.call(arguments, 1);

function indexOf(string, pattern, from, returnEnd) {
		    if (typeof pattern == "string") {
		      var found = string.indexOf(pattern, from);
		      return returnEnd && found > -1 ? found + pattern.length : found;
		    }
		    var m = pattern.exec(from ? string.slice(from) : string);
		    return m ? m.index + from + (returnEnd ? m[0].length : 0) : -1;
		  }

return {
		    startState: function() {
		      return {
		        outer: CodeMirror.startState(outer),
		        innerActive: null,
		        inner: null,
		        startingInner: false
		      };
		    },

copyState: function(state) {
		      return {
		        outer: CodeMirror.copyState(outer, state.outer),
		        innerActive: state.innerActive,
		        inner: state.innerActive && CodeMirror.copyState(state.innerActive.mode, state.inner),
		        startingInner: state.startingInner
		      };
		    },

token: function(stream, state) {
		      if (!state.innerActive) {
		        var cutOff = Infinity, oldContent = stream.string;
		        for (var i = 0; i < others.length; ++i) {
		          var other = others[i];
		          var found = indexOf(oldContent, other.open, stream.pos);
		          if (found == stream.pos) {
		            if (!other.parseDelimiters) stream.match(other.open);
		            state.startingInner = !!other.parseDelimiters;
		            state.innerActive = other;

// Get the outer indent, making sure to handle CodeMirror.Pass
		            var outerIndent = 0;
		            if (outer.indent) {
		              var possibleOuterIndent = outer.indent(state.outer, "", "");
		              if (possibleOuterIndent !== CodeMirror.Pass) outerIndent = possibleOuterIndent;
		            }

state.inner = CodeMirror.startState(other.mode, outerIndent);
		            return other.delimStyle && (other.delimStyle + " " + other.delimStyle + "-open");
		          } else if (found != -1 && found < cutOff) {
		            cutOff = found;
		          }
		        }
		        if (cutOff != Infinity) stream.string = oldContent.slice(0, cutOff);
		        var outerToken = outer.token(stream, state.outer);
		        if (cutOff != Infinity) stream.string = oldContent;
		        return outerToken;
		      } else {
		        var curInner = state.innerActive, oldContent = stream.string;
		        if (!curInner.close && stream.sol()) {
		          state.innerActive = state.inner = null;
		          return this.token(stream, state);
		        }
		        var found = curInner.close && !state.startingInner ?
		            indexOf(oldContent, curInner.close, stream.pos, curInner.parseDelimiters) : -1;
		        if (found == stream.pos && !curInner.parseDelimiters) {
		          stream.match(curInner.close);
		          state.innerActive = state.inner = null;
		          return curInner.delimStyle && (curInner.delimStyle + " " + curInner.delimStyle + "-close");
		        }
		        if (found > -1) stream.string = oldContent.slice(0, found);
		        var innerToken = curInner.mode.token(stream, state.inner);
		        if (found > -1) stream.string = oldContent;
		        else if (stream.pos > stream.start) state.startingInner = false;

if (found == stream.pos && curInner.parseDelimiters)
		          state.innerActive = state.inner = null;

if (curInner.innerStyle) {
		          if (innerToken) innerToken = innerToken + " " + curInner.innerStyle;
		          else innerToken = curInner.innerStyle;
		        }

return innerToken;
		      }
		    },

indent: function(state, textAfter, line) {
		      var mode = state.innerActive ? state.innerActive.mode : outer;
		      if (!mode.indent) return CodeMirror.Pass;
		      return mode.indent(state.innerActive ? state.inner : state.outer, textAfter, line);
		    },

blankLine: function(state) {
		      var mode = state.innerActive ? state.innerActive.mode : outer;
		      if (mode.blankLine) {
		        mode.blankLine(state.innerActive ? state.inner : state.outer);
		      }
		      if (!state.innerActive) {
		        for (var i = 0; i < others.length; ++i) {
		          var other = others[i];
		          if (other.open === "\n") {
		            state.innerActive = other;
		            state.inner = CodeMirror.startState(other.mode, mode.indent ? mode.indent(state.outer, "", "") : 0);
		          }
		        }
		      } else if (state.innerActive.close === "\n") {
		        state.innerActive = state.inner = null;
		      }
		    },

electricChars: outer.electricChars,

innerMode: function(state) {
		      return state.inner ? {state: state.inner, mode: state.innerActive.mode} : {state: state.outer, mode: outer};
		    }
		  };
		};

}); 
	} ());
	return multiplex.exports;
}
/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
	  mod(requireCodemirror(), requireSimple(), requireMultiplex());
	})(function(CodeMirror) {

CodeMirror.defineSimpleMode("handlebars-tags", {
	    start: [
	      { regex: /\{\{\{/, push: "handlebars_raw", token: "tag" },
	      { regex: /\{\{!--/, push: "dash_comment", token: "comment" },
	      { regex: /\{\{!/,   push: "comment", token: "comment" },
	      { regex: /\{\{/,    push: "handlebars", token: "tag" }
	    ],
	    handlebars_raw: [
	      { regex: /\}\}\}/, pop: true, token: "tag" },
	    ],
	    handlebars: [
	      { regex: /\}\}/, pop: true, token: "tag" },

// Double and single quotes
	      { regex: /"(?:[^\\"]|\\.)*"?/, token: "string" },
	      { regex: /'(?:[^\\']|\\.)*'?/, token: "string" },

// Handlebars keywords
	      { regex: />|[#\/]([A-Za-z_]\w*)/, token: "keyword" },
	      { regex: /(?:else|this)\b/, token: "keyword" },

// Numeral
	      { regex: /\d+/i, token: "number" },

// Atoms like = and .
	      { regex: /=|~|@|true|false/, token: "atom" },

// Paths
	      { regex: /(?:\.\.\/)*(?:[A-Za-z_][\w\.]*)+/, token: "variable-2" }
	    ],
	    dash_comment: [
	      { regex: /--\}\}/, pop: true, token: "comment" },

// Commented code
	      { regex: /./, token: "comment"}
	    ],
	    comment: [
	      { regex: /\}\}/, pop: true, token: "comment" },
	      { regex: /./, token: "comment" }
	    ],
	    meta: {
	      blockCommentStart: "{{--",
	      blockCommentEnd: "--}}"
	    }
	  });

CodeMirror.defineMode("handlebars", function(config, parserConfig) {
	    var handlebars = CodeMirror.getMode(config, "handlebars-tags");
	    if (!parserConfig || !parserConfig.base) return handlebars;
	    return CodeMirror.multiplexingMode(
	      CodeMirror.getMode(config, parserConfig.base),
	      {open: "{{", close: /\}\}\}?/, mode: handlebars, parseDelimiters: true}
	    );
	  });

CodeMirror.defineMIME("text/x-handlebars-template", "handlebars");
	}); 
} ());

var handlebarsExports = handlebars.exports;
/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function (mod) {
	  {// CommonJS
	    mod(requireCodemirror(),
	        requireOverlay(),
	        requireXml(),
	        javascriptExports,
	        requireCoffeescript(),
	        cssExports,
	        sassExports,
	        requireStylus(),
	        pugExports,
	        handlebarsExports);
	  }
	})(function (CodeMirror) {
	  var tagLanguages = {
	    script: [
	      ["lang", /coffee(script)?/, "coffeescript"],
	      ["type", /^(?:text|application)\/(?:x-)?coffee(?:script)?$/, "coffeescript"],
	      ["lang", /^babel$/, "javascript"],
	      ["type", /^text\/babel$/, "javascript"],
	      ["type", /^text\/ecmascript-\d+$/, "javascript"]
	    ],
	    style: [
	      ["lang", /^stylus$/i, "stylus"],
	      ["lang", /^sass$/i, "sass"],
	      ["lang", /^less$/i, "text/x-less"],
	      ["lang", /^scss$/i, "text/x-scss"],
	      ["type", /^(text\/)?(x-)?styl(us)?$/i, "stylus"],
	      ["type", /^text\/sass/i, "sass"],
	      ["type", /^(text\/)?(x-)?scss$/i, "text/x-scss"],
	      ["type", /^(text\/)?(x-)?less$/i, "text/x-less"]
	    ],
	    template: [
	      ["lang", /^vue-template$/i, "vue"],
	      ["lang", /^pug$/i, "pug"],
	      ["lang", /^handlebars$/i, "handlebars"],
	      ["type", /^(text\/)?(x-)?pug$/i, "pug"],
	      ["type", /^text\/x-handlebars-template$/i, "handlebars"],
	      [null, null, "vue-template"]
	    ]
	  };

CodeMirror.defineMode("vue-template", function (config, parserConfig) {
	    var mustacheOverlay = {
	      token: function (stream) {
	        if (stream.match(/^\{\{.*?\}\}/)) return "meta mustache";
	        while (stream.next() && !stream.match("{{", false)) {}
	        return null;
	      }
	    };
	    return CodeMirror.overlayMode(CodeMirror.getMode(config, parserConfig.backdrop || "text/html"), mustacheOverlay);
	  });

CodeMirror.defineMode("vue", function (config) {
	    return CodeMirror.getMode(config, {name: "htmlmixed", tags: tagLanguages});
	  }, "htmlmixed", "xml", "javascript", "coffeescript", "css", "sass", "stylus", "pug", "handlebars");

CodeMirror.defineMIME("script/x-vue", "vue");
	  CodeMirror.defineMIME("text/x-vue", "vue");
	}); 
} ());
/* Injected with object hook! */

requireHtmlmixed();
/* Injected with object hook! */

(function (module, exports) {
	// CodeMirror, copyright (c) by Marijn Haverbeke and others
	// Distributed under an MIT license: https://codemirror.net/5/LICENSE

if (val && !cm.hasFocus()) onBlur(cm);
	  });

function onBlur(cm) {
	    if (isEmpty(cm)) setPlaceholder(cm);
	  }
	  function onChange(cm) {
	    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
	    wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");

if (empty) setPlaceholder(cm);
	    else clearPlaceholder(cm);
	  }

function isEmpty(cm) {
	    return (cm.lineCount() === 1) && (cm.getLine(0) === "");
	  }
	}); 
} ());
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
const proxyMarker = Symbol("Comlink.proxy");
const createEndpoint = Symbol("Comlink.endpoint");
const releaseProxy = Symbol("Comlink.releaseProxy");
const finalizer = Symbol("Comlink.finalizer");
const throwMarker = Symbol("Comlink.thrown");
const isObject$3 = (val) => (typeof val === "object" && val !== null) || typeof val === "function";
/**
 * Internal transfer handle to handle objects marked to proxy.
 */
const proxyTransferHandler = {
    canHandle: (val) => isObject$3(val) && val[proxyMarker],
    serialize(obj) {
        const { port1, port2 } = new MessageChannel();
        expose(obj, port1);
        return [port2, [port2]];
    },
    deserialize(port) {
        port.start();
        return wrap(port);
    },
};
/**
 * Internal transfer handler to handle thrown exceptions.
 */
const throwTransferHandler = {
    canHandle: (value) => isObject$3(value) && throwMarker in value,
    serialize({ value }) {
        let serialized;
        if (value instanceof Error) {
            serialized = {
                isError: true,
                value: {
                    message: value.message,
                    name: value.name,
                    stack: value.stack,
                },
            };
        }
        else {
            serialized = { isError: false, value };
        }
        return [serialized, []];
    },
    deserialize(serialized) {
        if (serialized.isError) {
            throw Object.assign(new Error(serialized.value.message), serialized.value);
        }
        throw serialized.value;
    },
};
/**
 * Allows customizing the serialization of certain values.
 */
const transferHandlers = new Map([
    ["proxy", proxyTransferHandler],
    ["throw", throwTransferHandler],
]);
function isAllowedOrigin(allowedOrigins, origin) {
    for (const allowedOrigin of allowedOrigins) {
        if (origin === allowedOrigin || allowedOrigin === "*") {
            return true;
        }
        if (allowedOrigin instanceof RegExp && allowedOrigin.test(origin)) {
            return true;
        }
    }
    return false;
}
function expose(obj, ep = globalThis, allowedOrigins = ["*"]) {
    ep.addEventListener("message", function callback(ev) {
        if (!ev || !ev.data) {
            return;
        }
        if (!isAllowedOrigin(allowedOrigins, ev.origin)) {
            console.warn(`Invalid origin '${ev.origin}' for comlink proxy`);
            return;
        }
        const { id, type, path } = Object.assign({ path: [] }, ev.data);
        const argumentList = (ev.data.argumentList || []).map(fromWireValue);
        let returnValue;
        try {
            const parent = path.slice(0, -1).reduce((obj, prop) => obj[prop], obj);
            const rawValue = path.reduce((obj, prop) => obj[prop], obj);
            switch (type) {
                case "GET" /* MessageType.GET */:
                    {
                        returnValue = rawValue;
                    }
                    break;
                case "SET" /* MessageType.SET */:
                    {
                        parent[path.slice(-1)[0]] = fromWireValue(ev.data.value);
                        returnValue = true;
                    }
                    break;
                case "APPLY" /* MessageType.APPLY */:
                    {
                        returnValue = rawValue.apply(parent, argumentList);
                    }
                    break;
                case "CONSTRUCT" /* MessageType.CONSTRUCT */:
                    {
                        const value = new rawValue(...argumentList);
                        returnValue = proxy(value);
                    }
                    break;
                case "ENDPOINT" /* MessageType.ENDPOINT */:
                    {
                        const { port1, port2 } = new MessageChannel();
                        expose(obj, port2);
                        returnValue = transfer(port1, [port1]);
                    }
                    break;
                case "RELEASE" /* MessageType.RELEASE */:
                    {
                        returnValue = undefined;
                    }
                    break;
                default:
                    return;
            }
        }
        catch (value) {
            returnValue = { value, [throwMarker]: 0 };
        }
        Promise.resolve(returnValue)
            .catch((value) => {
            return { value, [throwMarker]: 0 };
        })
            .then((returnValue) => {
            const [wireValue, transferables] = toWireValue(returnValue);
            ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);
            if (type === "RELEASE" /* MessageType.RELEASE */) {
                // detach and deactive after sending release response above.
                ep.removeEventListener("message", callback);
                closeEndPoint(ep);
                if (finalizer in obj && typeof obj[finalizer] === "function") {
                    obj[finalizer]();
                }
            }
        })
            .catch((error) => {
            // Send Serialization Error To Caller
            const [wireValue, transferables] = toWireValue({
                value: new TypeError("Unserializable return value"),
                [throwMarker]: 0,
            });
            ep.postMessage(Object.assign(Object.assign({}, wireValue), { id }), transferables);
        });
    });
    if (ep.start) {
        ep.start();
    }
}
function isMessagePort(endpoint) {
    return endpoint.constructor.name === "MessagePort";
}
function closeEndPoint(endpoint) {
    if (isMessagePort(endpoint))
        endpoint.close();
}
function wrap(ep, target) {
    const pendingListeners = new Map();
    ep.addEventListener("message", function handleMessage(ev) {
        const { data } = ev;
        if (!data || !data.id) {
            return;
        }
        const resolver = pendingListeners.get(data.id);
        if (!resolver) {
            return;
        }
        try {
            resolver(data);
        }
        finally {
            pendingListeners.delete(data.id);
        }
    });
    return createProxy(ep, pendingListeners, [], target);
}
function throwIfProxyReleased(isReleased) {
    if (isReleased) {
        throw new Error("Proxy has been released and is not useable");
    }
}
function releaseEndpoint(ep) {
    return requestResponseMessage(ep, new Map(), {
        type: "RELEASE" /* MessageType.RELEASE */,
    }).then(() => {
        closeEndPoint(ep);
    });
}
const proxyCounter = new WeakMap();
const proxyFinalizers = "FinalizationRegistry" in globalThis &&
    new FinalizationRegistry((ep) => {
        const newCount = (proxyCounter.get(ep) || 0) - 1;
        proxyCounter.set(ep, newCount);
        if (newCount === 0) {
            releaseEndpoint(ep);
        }
    });
function registerProxy(proxy, ep) {
    const newCount = (proxyCounter.get(ep) || 0) + 1;
    proxyCounter.set(ep, newCount);
    if (proxyFinalizers) {
        proxyFinalizers.register(proxy, ep, proxy);
    }
}
function unregisterProxy(proxy) {
    if (proxyFinalizers) {
        proxyFinalizers.unregister(proxy);
    }
}
function createProxy(ep, pendingListeners, path = [], target = function () { }) {
    let isProxyReleased = false;
    const proxy = new Proxy(target, {
        get(_target, prop) {
            throwIfProxyReleased(isProxyReleased);
            if (prop === releaseProxy) {
                return () => {
                    unregisterProxy(proxy);
                    releaseEndpoint(ep);
                    pendingListeners.clear();
                    isProxyReleased = true;
                };
            }
            if (prop === "then") {
                if (path.length === 0) {
                    return { then: () => proxy };
                }
                const r = requestResponseMessage(ep, pendingListeners, {
                    type: "GET" /* MessageType.GET */,
                    path: path.map((p) => p.toString()),
                }).then(fromWireValue);
                return r.then.bind(r);
            }
            return createProxy(ep, pendingListeners, [...path, prop]);
        },
        set(_target, prop, rawValue) {
            throwIfProxyReleased(isProxyReleased);
            // FIXME: ES6 Proxy Handler `set` methods are supposed to return a
            // boolean. To show good will, we return true asynchronously ¯\_(ツ)_/¯
            const [value, transferables] = toWireValue(rawValue);
            return requestResponseMessage(ep, pendingListeners, {
                type: "SET" /* MessageType.SET */,
                path: [...path, prop].map((p) => p.toString()),
                value,
            }, transferables).then(fromWireValue);
        },
        apply(_target, _thisArg, rawArgumentList) {
            throwIfProxyReleased(isProxyReleased);
            const last = path[path.length - 1];
            if (last === createEndpoint) {
                return requestResponseMessage(ep, pendingListeners, {
                    type: "ENDPOINT" /* MessageType.ENDPOINT */,
                }).then(fromWireValue);
            }
            // We just pretend that `bind()` didn’t happen.
            if (last === "bind") {
                return createProxy(ep, pendingListeners, path.slice(0, -1));
            }
            const [argumentList, transferables] = processArguments(rawArgumentList);
            return requestResponseMessage(ep, pendingListeners, {
                type: "APPLY" /* MessageType.APPLY */,
                path: path.map((p) => p.toString()),
                argumentList,
            }, transferables).then(fromWireValue);
        },
        construct(_target, rawArgumentList) {
            throwIfProxyReleased(isProxyReleased);
            const [argumentList, transferables] = processArguments(rawArgumentList);
            return requestResponseMessage(ep, pendingListeners, {
                type: "CONSTRUCT" /* MessageType.CONSTRUCT */,
                path: path.map((p) => p.toString()),
                argumentList,
            }, transferables).then(fromWireValue);
        },
    });
    registerProxy(proxy, ep);
    return proxy;
}
function myFlat(arr) {
    return Array.prototype.concat.apply([], arr);
}
function processArguments(argumentList) {
    const processed = argumentList.map(toWireValue);
    return [processed.map((v) => v[0]), myFlat(processed.map((v) => v[1]))];
}
const transferCache = new WeakMap();
function transfer(obj, transfers) {
    transferCache.set(obj, transfers);
    return obj;
}
function proxy(obj) {
    return Object.assign(obj, { [proxyMarker]: true });
}
function toWireValue(value) {
    for (const [name, handler] of transferHandlers) {
        if (handler.canHandle(value)) {
            const [serializedValue, transferables] = handler.serialize(value);
            return [
                {
                    type: "HANDLER" /* WireValueType.HANDLER */,
                    name,
                    value: serializedValue,
                },
                transferables,
            ];
        }
    }
    return [
        {
            type: "RAW" /* WireValueType.RAW */,
            value,
        },
        transferCache.get(value) || [],
    ];
}
function fromWireValue(value) {
    switch (value.type) {
        case "HANDLER" /* WireValueType.HANDLER */:
            return transferHandlers.get(value.name).deserialize(value.value);
        case "RAW" /* WireValueType.RAW */:
            return value.value;
    }
}
function requestResponseMessage(ep, pendingListeners, msg, transfers) {
    return new Promise((resolve) => {
        const id = generateUUID();
        pendingListeners.set(id, resolve);
        if (ep.start) {
            ep.start();
        }
        ep.postMessage(Object.assign({ id }, msg), transfers);
    });
}
function generateUUID() {
    return new Array(4)
        .fill(0)
        .map(() => Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString(16))
        .join("-");
}

/* Injected with object hook! */

let diffWorker;
async function calculateDiffWithWorker(left, right) {
  if (!diffWorker) {
    diffWorker = wrap(
      new Worker(new URL(/* @vite-ignore */ ""+new URL('diff.worker-D37lkEH1.js', import.meta.url).href+"", import.meta.url), {
        type: "module"
      })
    );
  }
  const result = await diffWorker.calculateDiff(left, right);
  return result;
}

/* Injected with object hook! */

/* Injected with object hook! */

/* unplugin-vue-components disabled */
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

const hotContext = createHotContext();
async function getHot() {
  return await hotContext;
}

/* Injected with object hook! */

/* Injected with object hook! */

/*! *****************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

function __extends(d, b) {
    if (typeof b !== "function" && b !== null)
        throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
    extendStatics(d, b);
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var AREA_STYLE_KEY_MAP = [['fill', 'color'], ['shadowBlur'], ['shadowOffsetX'], ['shadowOffsetY'], ['opacity'], ['shadowColor']
// Option decal is in `DecalObject` but style.decal is in `PatternObject`.
// So do not transfer decal directly.
];

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var dpr = 1;
if (env.hasGlobalWindow) {
    dpr = Math.max(window.devicePixelRatio
        || (window.screen && window.screen.deviceXDPI / window.screen.logicalXDPI)
        || 1, 1);
}
var devicePixelRatio = dpr;
var DARK_MODE_THRESHOLD = 0.4;
var DARK_LABEL_COLOR = '#333';
var LIGHT_LABEL_COLOR = '#ccc';
var LIGHTER_LABEL_COLOR = '#eee';

/* Injected with object hook! */

var REDRAW_BIT = 1;
var STYLE_CHANGED_BIT = 2;
var SHAPE_CHANGED_BIT = 4;

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var PI2$3 = Math.PI * 2;
function normalizeRadian(angle) {
    angle %= PI2$3;
    if (angle < 0) {
        angle += PI2$3;
    }
    return angle;
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

function throwError(msg) {
  throw new Error(msg);
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var LinearGradient = (function (_super) {
    __extends(LinearGradient, _super);
    function LinearGradient(x, y, x2, y2, colorStops, globalCoord) {
        var _this = _super.call(this, colorStops) || this;
        _this.x = x == null ? 0 : x;
        _this.y = y == null ? 0 : y;
        _this.x2 = x2 == null ? 1 : x2;
        _this.y2 = y2 == null ? 0 : y2;
        _this.type = 'linear';
        _this.global = globalCoord || false;
        return _this;
    }
    return LinearGradient;
}(Gradient));

/* Injected with object hook! */

var RadialGradient = (function (_super) {
    __extends(RadialGradient, _super);
    function RadialGradient(x, y, r, colorStops, globalCoord) {
        var _this = _super.call(this, colorStops) || this;
        _this.x = x == null ? 0.5 : x;
        _this.y = y == null ? 0.5 : y;
        _this.r = r == null ? 0.5 : r;
        _this.type = 'radial';
        _this.global = globalCoord || false;
        return _this;
    }
    return RadialGradient;
}(Gradient));

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

// Stored properties for further transition.
var transitionStore = makeInner();
/**
 * Return null if animation is disabled.
 */
function getAnimationConfig(animationType, animatableModel, dataIndex,
// Extra opts can override the option in animatable model.
extraOpts,
// TODO It's only for pictorial bar now.
extraDelayParams) {
  var animationPayload;
  // Check if there is global animation configuration from dataZoom/resize can override the config in option.
  // If animation is enabled. Will use this animation config in payload.
  // If animation is disabled. Just ignore it.
  if (animatableModel && animatableModel.ecModel) {
    var updatePayload = animatableModel.ecModel.getUpdatePayload();
    animationPayload = updatePayload && updatePayload.animation;
  }
  var animationEnabled = animatableModel && animatableModel.isAnimationEnabled();
  var isUpdate = animationType === 'update';
  if (animationEnabled) {
    var duration = void 0;
    var easing = void 0;
    var delay = void 0;
    if (extraOpts) {
      duration = retrieve2(extraOpts.duration, 200);
      easing = retrieve2(extraOpts.easing, 'cubicOut');
      delay = 0;
    } else {
      duration = animatableModel.getShallow(isUpdate ? 'animationDurationUpdate' : 'animationDuration');
      easing = animatableModel.getShallow(isUpdate ? 'animationEasingUpdate' : 'animationEasing');
      delay = animatableModel.getShallow(isUpdate ? 'animationDelayUpdate' : 'animationDelay');
    }
    // animation from payload has highest priority.
    if (animationPayload) {
      animationPayload.duration != null && (duration = animationPayload.duration);
      animationPayload.easing != null && (easing = animationPayload.easing);
      animationPayload.delay != null && (delay = animationPayload.delay);
    }
    if (isFunction(delay)) {
      delay = delay(dataIndex, extraDelayParams);
    }
    if (isFunction(duration)) {
      duration = duration(dataIndex);
    }
    var config = {
      duration: duration || 0,
      delay: delay,
      easing: easing
    };
    return config;
  } else {
    return null;
  }
}
function animateOrSetProps(animationType, el, props, animatableModel, dataIndex, cb, during) {
  var isFrom = false;
  var removeOpt;
  if (isFunction(dataIndex)) {
    during = cb;
    cb = dataIndex;
    dataIndex = null;
  } else if (isObject$2(dataIndex)) {
    cb = dataIndex.cb;
    during = dataIndex.during;
    isFrom = dataIndex.isFrom;
    removeOpt = dataIndex.removeOpt;
    dataIndex = dataIndex.dataIndex;
  }
  var isRemove = animationType === 'leave';
  if (!isRemove) {
    // Must stop the remove animation.
    el.stopAnimation('leave');
  }
  var animationConfig = getAnimationConfig(animationType, animatableModel, dataIndex, isRemove ? removeOpt || {} : null, animatableModel && animatableModel.getAnimationDelayParams ? animatableModel.getAnimationDelayParams(el, dataIndex) : null);
  if (animationConfig && animationConfig.duration > 0) {
    var duration = animationConfig.duration;
    var animationDelay = animationConfig.delay;
    var animationEasing = animationConfig.easing;
    var animateConfig = {
      duration: duration,
      delay: animationDelay || 0,
      easing: animationEasing,
      done: cb,
      force: !!cb || !!during,
      // Set to final state in update/init animation.
      // So the post processing based on the path shape can be done correctly.
      setToFinal: !isRemove,
      scope: animationType,
      during: during
    };
    isFrom ? el.animateFrom(props, animateConfig) : el.animateTo(props, animateConfig);
  } else {
    el.stopAnimation();
    // If `isFrom`, the props is the "from" props.
    !isFrom && el.attr(props);
    // Call during at least once.
    during && during(1);
    cb && cb();
  }
}
/**
 * Update graphic element properties with or without animation according to the
 * configuration in series.
 *
 * Caution: this method will stop previous animation.
 * So do not use this method to one element twice before
 * animation starts, unless you know what you are doing.
 * @example
 *     graphic.updateProps(el, {
 *         position: [100, 100]
 *     }, seriesModel, dataIndex, function () { console.log('Animation done!'); });
 *     // Or
 *     graphic.updateProps(el, {
 *         position: [100, 100]
 *     }, seriesModel, function () { console.log('Animation done!'); });
 */
function updateProps$1(el, props,
// TODO: TYPE AnimatableModel
animatableModel, dataIndex, cb, during) {
  animateOrSetProps('update', el, props, animatableModel, dataIndex, cb, during);
}
/**
 * Init graphic element properties with or without animation according to the
 * configuration in series.
 *
 * Caution: this method will stop previous animation.
 * So do not use this method to one element twice before
 * animation starts, unless you know what you are doing.
 */
function initProps(el, props, animatableModel, dataIndex, cb, during) {
  animateOrSetProps('enter', el, props, animatableModel, dataIndex, cb, during);
}
/**
 * If element is removed.
 * It can determine if element is having remove animation.
 */
function isElementRemoved(el) {
  if (!el.__zr) {
    return true;
  }
  for (var i = 0; i < el.animators.length; i++) {
    var animator = el.animators[i];
    if (animator.scope === 'leave') {
      return true;
    }
  }
  return false;
}
/**
 * Remove graphic element
 */
function removeElement(el, props, animatableModel, dataIndex, cb, during) {
  // Don't do remove animation twice.
  if (isElementRemoved(el)) {
    return;
  }
  animateOrSetProps('leave', el, props, animatableModel, dataIndex, cb, during);
}
function fadeOutDisplayable(el, animatableModel, dataIndex, done) {
  el.removeTextContent();
  el.removeTextGuideLine();
  removeElement(el, {
    style: {
      opacity: 0
    }
  }, animatableModel, dataIndex, done);
}
function removeElementWithFadeOut(el, animatableModel, dataIndex) {
  function doRemove() {
    el.parent && el.parent.remove(el);
  }
  // Hide label and labelLine first
  // TODO Also use fade out animation?
  if (!el.isGroup) {
    fadeOutDisplayable(el, animatableModel, dataIndex, doRemove);
  } else {
    el.traverse(function (disp) {
      if (!disp.isGroup) {
        // Can invoke doRemove multiple times.
        fadeOutDisplayable(disp, animatableModel, dataIndex, doRemove);
      }
    });
  }
}
/**
 * Save old style for style transition in universalTransition module.
 * It's used when element will be reused in each render.
 * For chart like map, heatmap, which will always create new element.
 * We don't need to save this because universalTransition can get old style from the old element
 */
function saveOldStyle(el) {
  transitionStore(el).oldStyle = el.style;
}
/* Injected with object hook! */

const graphic = /*#__PURE__*/Object.freeze(/*#__PURE__*/Object.defineProperty({
  __proto__: null,
  Arc,
  BezierCurve,
  BoundingRect,
  Circle,
  CompoundPath,
  Ellipse,
  Group: Group$2,
  Image: ZRImage,
  IncrementalDisplayable,
  Line,
  LinearGradient,
  OrientedBoundingRect,
  Path,
  Point,
  Polygon,
  Polyline,
  RadialGradient,
  Rect,
  Ring,
  Sector,
  Text: ZRText,
  applyTransform,
  clipPointsByRect,
  clipRectByRect,
  createIcon,
  extendPath,
  extendShape,
  getShapeClass,
  getTransform,
  groupTransition,
  initProps,
  isElementRemoved,
  lineLineIntersect,
  linePolygonIntersect,
  makeImage,
  makePath,
  mergePath,
  registerShape,
  removeElement,
  removeElementWithFadeOut,
  resizePath,
  setTooltipConfig,
  subPixelOptimize,
  subPixelOptimizeLine,
  subPixelOptimizeRect,
  transformDirection,
  traverseElements,
  updateProps: updateProps$1
}, Symbol.toStringTag, { value: 'Module' }));

/* Injected with object hook! */

var LINE_STYLE_KEY_MAP = [['lineWidth', 'width'], ['stroke', 'color'], ['opacity'], ['shadowBlur'], ['shadowOffsetX'], ['shadowOffsetY'], ['shadowColor'], ['lineDash', 'type'], ['lineDashOffset', 'dashOffset'], ['lineCap', 'cap'], ['lineJoin', 'join'], ['miterLimit']
// Option decal is in `DecalObject` but style.decal is in `PatternObject`.
// So do not transfer decal directly.
];

var ITEM_STYLE_KEY_MAP = [['fill', 'color'], ['stroke', 'borderColor'], ['lineWidth', 'borderWidth'], ['opacity'], ['shadowBlur'], ['shadowOffsetX'], ['shadowOffsetY'], ['shadowColor'], ['lineDash', 'borderType'], ['lineDashOffset', 'borderDashOffset'], ['lineCap', 'borderCap'], ['lineJoin', 'borderJoin'], ['miterLimit', 'borderMiterLimit']
// Option decal is in `DecalObject` but style.decal is in `PatternObject`.
// So do not transfer decal directly.
];

Model.prototype.init = function (option, parentModel, ecModel) {
  };
  /**
   * Merge the input option to me.
   */
  Model.prototype.mergeOption = function (option, ecModel) {
    merge(this.option, option, true);
  };
  // `path` can be 'a.b.c', so the return value type have to be `ModelOption`
  // TODO: TYPE strict key check?
  // get(path: string | string[], ignoreParent?: boolean): ModelOption;
  Model.prototype.get = function (path, ignoreParent) {
    if (path == null) {
      return this.option;
    }
    return this._doGet(this.parsePath(path), !ignoreParent && this.parentModel);
  };
  Model.prototype.getShallow = function (key, ignoreParent) {
    var option = this.option;
    var val = option == null ? option : option[key];
    if (val == null && !ignoreParent) {
      var parentModel = this.parentModel;
      if (parentModel) {
        // FIXME:TS do not know how to make it works
        val = parentModel.getShallow(key);
      }
    }
    return val;
  };
  // `path` can be 'a.b.c', so the return value type have to be `Model<ModelOption>`
  // getModel(path: string | string[], parentModel?: Model): Model;
  // TODO 'a.b.c' is deprecated
  Model.prototype.getModel = function (path, parentModel) {
    var hasPath = path != null;
    var pathFinal = hasPath ? this.parsePath(path) : null;
    var obj = hasPath ? this._doGet(pathFinal) : this.option;
    parentModel = parentModel || this.parentModel && this.parentModel.getModel(this.resolveParentPath(pathFinal));
    return new Model(obj, parentModel, this.ecModel);
  };
  /**
   * If model has option
   */
  Model.prototype.isEmpty = function () {
    return this.option == null;
  };
  Model.prototype.restoreData = function () {};
  // Pending
  Model.prototype.clone = function () {
    var Ctor = this.constructor;
    return new Ctor(clone$2(this.option));
  };
  // setReadOnly(properties): void {
  // clazzUtil.setReadOnly(this, properties);
  // }
  // If path is null/undefined, return null/undefined.
  Model.prototype.parsePath = function (path) {
    if (typeof path === 'string') {
      return path.split('.');
    }
    return path;
  };
  // Resolve path for parent. Perhaps useful when parent use a different property.
  // Default to be a identity resolver.
  // Can be modified to a different resolver.
  Model.prototype.resolveParentPath = function (path) {
    return path;
  };
  // FIXME:TS check whether put this method here
  Model.prototype.isAnimationEnabled = function () {
    if (!env.node && this.option) {
      if (this.option.animation != null) {
        return !!this.option.animation;
      } else if (this.parentModel) {
        return this.parentModel.isAnimationEnabled();
      }
    }
  };
  Model.prototype._doGet = function (pathArr, parentModel) {
    var obj = this.option;
    if (!pathArr) {
      return obj;
    }
    for (var i = 0; i < pathArr.length; i++) {
      // Ignore empty
      if (!pathArr[i]) {
        continue;
      }
      // obj could be number/string/... (like 0)
      obj = obj && typeof obj === 'object' ? obj[pathArr[i]] : null;
      if (obj == null) {
        break;
      }
    }
    if (obj == null && parentModel) {
      obj = parentModel._doGet(this.resolveParentPath(pathArr), parentModel.parentModel);
    }
    return obj;
  };
  return Model;
}();
// Enable Model.extend.
enableClassExtend(Model);
enableClassCheck(Model);
mixin(Model, LineStyleMixin);
mixin(Model, ItemStyleMixin);
mixin(Model, AreaStyleMixin);
mixin(Model, TextStyleMixin);
/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
function dataIndexMapValueLength(valNumOrArrLengthMoreThan2) {
  return valNumOrArrLengthMoreThan2 == null ? 0 : valNumOrArrLengthMoreThan2.length || 1;
}
function defaultKeyGetter(item) {
  return item;
}
var DataDiffer = /** @class */function () {
  /**
   * @param context Can be visited by this.context in callback.
   */
  function DataDiffer(oldArr, newArr, oldKeyGetter, newKeyGetter, context,
  // By default: 'oneToOne'.
  diffMode) {
    this._old = oldArr;
    this._new = newArr;
    this._oldKeyGetter = oldKeyGetter || defaultKeyGetter;
    this._newKeyGetter = newKeyGetter || defaultKeyGetter;
    // Visible in callback via `this.context`;
    this.context = context;
    this._diffModeMultiple = diffMode === 'multiple';
  }
  /**
   * Callback function when add a data
   */
  DataDiffer.prototype.add = function (func) {
    this._add = func;
    return this;
  };
  /**
   * Callback function when update a data
   */
  DataDiffer.prototype.update = function (func) {
    this._update = func;
    return this;
  };
  /**
   * Callback function when update a data and only work in `cbMode: 'byKey'`.
   */
  DataDiffer.prototype.updateManyToOne = function (func) {
    this._updateManyToOne = func;
    return this;
  };
  /**
   * Callback function when update a data and only work in `cbMode: 'byKey'`.
   */
  DataDiffer.prototype.updateOneToMany = function (func) {
    this._updateOneToMany = func;
    return this;
  };
  /**
   * Callback function when update a data and only work in `cbMode: 'byKey'`.
   */
  DataDiffer.prototype.updateManyToMany = function (func) {
    this._updateManyToMany = func;
    return this;
  };
  /**
   * Callback function when remove a data
   */
  DataDiffer.prototype.remove = function (func) {
    this._remove = func;
    return this;
  };
  DataDiffer.prototype.execute = function () {
    this[this._diffModeMultiple ? '_executeMultiple' : '_executeOneToOne']();
  };
  DataDiffer.prototype._executeOneToOne = function () {
    var oldArr = this._old;
    var newArr = this._new;
    var newDataIndexMap = {};
    var oldDataKeyArr = new Array(oldArr.length);
    var newDataKeyArr = new Array(newArr.length);
    this._initIndexMap(oldArr, null, oldDataKeyArr, '_oldKeyGetter');
    this._initIndexMap(newArr, newDataIndexMap, newDataKeyArr, '_newKeyGetter');
    for (var i = 0; i < oldArr.length; i++) {
      var oldKey = oldDataKeyArr[i];
      var newIdxMapVal = newDataIndexMap[oldKey];
      var newIdxMapValLen = dataIndexMapValueLength(newIdxMapVal);
      // idx can never be empty array here. see 'set null' logic below.
      if (newIdxMapValLen > 1) {
        // Consider there is duplicate key (for example, use dataItem.name as key).
        // We should make sure every item in newArr and oldArr can be visited.
        var newIdx = newIdxMapVal.shift();
        if (newIdxMapVal.length === 1) {
          newDataIndexMap[oldKey] = newIdxMapVal[0];
        }
        this._update && this._update(newIdx, i);
      } else if (newIdxMapValLen === 1) {
        newDataIndexMap[oldKey] = null;
        this._update && this._update(newIdxMapVal, i);
      } else {
        this._remove && this._remove(i);
      }
    }
    this._performRestAdd(newDataKeyArr, newDataIndexMap);
  };
  /**
   * For example, consider the case:
   * oldData: [o0, o1, o2, o3, o4, o5, o6, o7],
   * newData: [n0, n1, n2, n3, n4, n5, n6, n7, n8],
   * Where:
   *     o0, o1, n0 has key 'a' (many to one)
   *     o5, n4, n5, n6 has key 'b' (one to many)
   *     o2, n1 has key 'c' (one to one)
   *     n2, n3 has key 'd' (add)
   *     o3, o4 has key 'e' (remove)
   *     o6, o7, n7, n8 has key 'f' (many to many, treated as add and remove)
   * Then:
   *     (The order of the following directives are not ensured.)
   *     this._updateManyToOne(n0, [o0, o1]);
   *     this._updateOneToMany([n4, n5, n6], o5);
   *     this._update(n1, o2);
   *     this._remove(o3);
   *     this._remove(o4);
   *     this._remove(o6);
   *     this._remove(o7);
   *     this._add(n2);
   *     this._add(n3);
   *     this._add(n7);
   *     this._add(n8);
   */
  DataDiffer.prototype._executeMultiple = function () {
    var oldArr = this._old;
    var newArr = this._new;
    var oldDataIndexMap = {};
    var newDataIndexMap = {};
    var oldDataKeyArr = [];
    var newDataKeyArr = [];
    this._initIndexMap(oldArr, oldDataIndexMap, oldDataKeyArr, '_oldKeyGetter');
    this._initIndexMap(newArr, newDataIndexMap, newDataKeyArr, '_newKeyGetter');
    for (var i = 0; i < oldDataKeyArr.length; i++) {
      var oldKey = oldDataKeyArr[i];
      var oldIdxMapVal = oldDataIndexMap[oldKey];
      var newIdxMapVal = newDataIndexMap[oldKey];
      var oldIdxMapValLen = dataIndexMapValueLength(oldIdxMapVal);
      var newIdxMapValLen = dataIndexMapValueLength(newIdxMapVal);
      if (oldIdxMapValLen > 1 && newIdxMapValLen === 1) {
        this._updateManyToOne && this._updateManyToOne(newIdxMapVal, oldIdxMapVal);
        newDataIndexMap[oldKey] = null;
      } else if (oldIdxMapValLen === 1 && newIdxMapValLen > 1) {
        this._updateOneToMany && this._updateOneToMany(newIdxMapVal, oldIdxMapVal);
        newDataIndexMap[oldKey] = null;
      } else if (oldIdxMapValLen === 1 && newIdxMapValLen === 1) {
        this._update && this._update(newIdxMapVal, oldIdxMapVal);
        newDataIndexMap[oldKey] = null;
      } else if (oldIdxMapValLen > 1 && newIdxMapValLen > 1) {
        this._updateManyToMany && this._updateManyToMany(newIdxMapVal, oldIdxMapVal);
        newDataIndexMap[oldKey] = null;
      } else if (oldIdxMapValLen > 1) {
        for (var i_1 = 0; i_1 < oldIdxMapValLen; i_1++) {
          this._remove && this._remove(oldIdxMapVal[i_1]);
        }
      } else {
        this._remove && this._remove(oldIdxMapVal);
      }
    }
    this._performRestAdd(newDataKeyArr, newDataIndexMap);
  };
  DataDiffer.prototype._performRestAdd = function (newDataKeyArr, newDataIndexMap) {
    for (var i = 0; i < newDataKeyArr.length; i++) {
      var newKey = newDataKeyArr[i];
      var newIdxMapVal = newDataIndexMap[newKey];
      var idxMapValLen = dataIndexMapValueLength(newIdxMapVal);
      if (idxMapValLen > 1) {
        for (var j = 0; j < idxMapValLen; j++) {
          this._add && this._add(newIdxMapVal[j]);
        }
      } else if (idxMapValLen === 1) {
        this._add && this._add(newIdxMapVal);
      }
      // Support both `newDataKeyArr` are duplication removed or not removed.
      newDataIndexMap[newKey] = null;
    }
  };
  DataDiffer.prototype._initIndexMap = function (arr,
  // Can be null.
  map,
  // In 'byKey', the output `keyArr` is duplication removed.
  // In 'byIndex', the output `keyArr` is not duplication removed and
  //     its indices are accurately corresponding to `arr`.
  keyArr, keyGetterName) {
    var cbModeMultiple = this._diffModeMultiple;
    for (var i = 0; i < arr.length; i++) {
      // Add prefix to avoid conflict with Object.prototype.
      var key = '_ec_' + this[keyGetterName](arr[i], i);
      if (!cbModeMultiple) {
        keyArr[i] = key;
      }
      if (!map) {
        continue;
      }
      var idxMapVal = map[key];
      var idxMapValLen = dataIndexMapValueLength(idxMapVal);
      if (idxMapValLen === 0) {
        // Simple optimize: in most cases, one index has one key,
        // do not need array.
        map[key] = i;
        if (cbModeMultiple) {
          keyArr.push(key);
        }
      } else if (idxMapValLen === 1) {
        map[key] = [idxMapVal, i];
      } else {
        idxMapVal.push(i);
      }
    }
  };
  return DataDiffer;
}();
/* Injected with object hook! */

var VISUAL_DIMENSIONS = createHashMap(['tooltip', 'label', 'itemName', 'itemId', 'itemGroupId', 'itemChildGroupId', 'seriesName']);
var SOURCE_FORMAT_ORIGINAL = 'original';
var SOURCE_FORMAT_ARRAY_ROWS = 'arrayRows';
var SOURCE_FORMAT_OBJECT_ROWS = 'objectRows';
var SOURCE_FORMAT_KEYED_COLUMNS = 'keyedColumns';
var SOURCE_FORMAT_TYPED_ARRAY = 'typedArray';
var SOURCE_FORMAT_UNKNOWN = 'unknown';
var SERIES_LAYOUT_BY_COLUMN = 'column';
var SERIES_LAYOUT_BY_ROW = 'row';
/* Injected with object hook! */

// The result of `guessOrdinal`.
var BE_ORDINAL = {
  Must: 1,
  Might: 2,
  Not: 3 // Other cases
};

/* Injected with object hook! */

var _a, _b, _c;
var providerMethods;
var mountMethods;
var DefaultDataProvider = (
  /** @class */
  function() {
    function DefaultDataProvider2(sourceParam, dimSize) {
      var source = !isSourceInstance(sourceParam) ? createSourceFromSeriesDataOption(sourceParam) : sourceParam;
      this._source = source;
      var data = this._data = source.data;
      if (source.sourceFormat === SOURCE_FORMAT_TYPED_ARRAY) {
        this._offset = 0;
        this._dimSize = dimSize;
        this._data = data;
      }
      mountMethods(this, data, source);
    }
    DefaultDataProvider2.prototype.getSource = function() {
      return this._source;
    };
    DefaultDataProvider2.prototype.count = function() {
      return 0;
    };
    DefaultDataProvider2.prototype.getItem = function(idx, out) {
      return;
    };
    DefaultDataProvider2.prototype.appendData = function(newData) {
    };
    DefaultDataProvider2.prototype.clean = function() {
    };
    DefaultDataProvider2.protoInitialize = function() {
      var proto = DefaultDataProvider2.prototype;
      proto.pure = false;
      proto.persistent = true;
    }();
    DefaultDataProvider2.internalField = function() {
      var _a2;
      mountMethods = function(provider, data, source) {
        var sourceFormat = source.sourceFormat;
        var seriesLayoutBy = source.seriesLayoutBy;
        var startIndex = source.startIndex;
        var dimsDef = source.dimensionsDefine;
        var methods = providerMethods[getMethodMapKey(sourceFormat, seriesLayoutBy)];
        extend(provider, methods);
        if (sourceFormat === SOURCE_FORMAT_TYPED_ARRAY) {
          provider.getItem = getItemForTypedArray;
          provider.count = countForTypedArray;
          provider.fillStorage = fillStorageForTypedArray;
        } else {
          var rawItemGetter = getRawSourceItemGetter(sourceFormat, seriesLayoutBy);
          provider.getItem = bind$1(rawItemGetter, null, data, startIndex, dimsDef);
          var rawCounter = getRawSourceDataCounter(sourceFormat, seriesLayoutBy);
          provider.count = bind$1(rawCounter, null, data, startIndex, dimsDef);
        }
      };
      var getItemForTypedArray = function(idx, out) {
        idx = idx - this._offset;
        out = out || [];
        var data = this._data;
        var dimSize = this._dimSize;
        var offset = dimSize * idx;
        for (var i = 0; i < dimSize; i++) {
          out[i] = data[offset + i];
        }
        return out;
      };
      var fillStorageForTypedArray = function(start, end, storage, extent) {
        var data = this._data;
        var dimSize = this._dimSize;
        for (var dim = 0; dim < dimSize; dim++) {
          var dimExtent = extent[dim];
          var min = dimExtent[0] == null ? Infinity : dimExtent[0];
          var max = dimExtent[1] == null ? -Infinity : dimExtent[1];
          var count = end - start;
          var arr = storage[dim];
          for (var i = 0; i < count; i++) {
            var val = data[i * dimSize + dim];
            arr[start + i] = val;
            val < min && (min = val);
            val > max && (max = val);
          }
          dimExtent[0] = min;
          dimExtent[1] = max;
        }
      };
      var countForTypedArray = function() {
        return this._data ? this._data.length / this._dimSize : 0;
      };
      providerMethods = (_a2 = {}, _a2[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_COLUMN] = {
        pure: true,
        appendData: appendDataSimply
      }, _a2[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_ROW] = {
        pure: true,
        appendData: function() {
          throw new Error('Do not support appendData when set seriesLayoutBy: "row".');
        }
      }, _a2[SOURCE_FORMAT_OBJECT_ROWS] = {
        pure: true,
        appendData: appendDataSimply
      }, _a2[SOURCE_FORMAT_KEYED_COLUMNS] = {
        pure: true,
        appendData: function(newData) {
          var data = this._data;
          each$4(newData, function(newCol, key) {
            var oldCol = data[key] || (data[key] = []);
            for (var i = 0; i < (newCol || []).length; i++) {
              oldCol.push(newCol[i]);
            }
          });
        }
      }, _a2[SOURCE_FORMAT_ORIGINAL] = {
        appendData: appendDataSimply
      }, _a2[SOURCE_FORMAT_TYPED_ARRAY] = {
        persistent: false,
        pure: true,
        appendData: function(newData) {
          this._data = newData;
        },
        // Clean self if data is already used.
        clean: function() {
          this._offset += this.count();
          this._data = null;
        }
      }, _a2);
      function appendDataSimply(newData) {
        for (var i = 0; i < newData.length; i++) {
          this._data.push(newData[i]);
        }
      }
    }();
    return DefaultDataProvider2;
  }()
);
var getItemSimply = function(rawData, startIndex, dimsDef, idx) {
  return rawData[idx];
};
var rawSourceItemGetterMap = (_a = {}, _a[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_COLUMN] = function(rawData, startIndex, dimsDef, idx) {
  return rawData[idx + startIndex];
}, _a[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_ROW] = function(rawData, startIndex, dimsDef, idx, out) {
  idx += startIndex;
  var item = out || [];
  var data = rawData;
  for (var i = 0; i < data.length; i++) {
    var row = data[i];
    item[i] = row ? row[idx] : null;
  }
  return item;
}, _a[SOURCE_FORMAT_OBJECT_ROWS] = getItemSimply, _a[SOURCE_FORMAT_KEYED_COLUMNS] = function(rawData, startIndex, dimsDef, idx, out) {
  var item = out || [];
  for (var i = 0; i < dimsDef.length; i++) {
    var dimName = dimsDef[i].name;
    var col = rawData[dimName];
    item[i] = col ? col[idx] : null;
  }
  return item;
}, _a[SOURCE_FORMAT_ORIGINAL] = getItemSimply, _a);
function getRawSourceItemGetter(sourceFormat, seriesLayoutBy) {
  var method = rawSourceItemGetterMap[getMethodMapKey(sourceFormat, seriesLayoutBy)];
  return method;
}
var countSimply = function(rawData, startIndex, dimsDef) {
  return rawData.length;
};
var rawSourceDataCounterMap = (_b = {}, _b[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_COLUMN] = function(rawData, startIndex, dimsDef) {
  return Math.max(0, rawData.length - startIndex);
}, _b[SOURCE_FORMAT_ARRAY_ROWS + "_" + SERIES_LAYOUT_BY_ROW] = function(rawData, startIndex, dimsDef) {
  var row = rawData[0];
  return row ? Math.max(0, row.length - startIndex) : 0;
}, _b[SOURCE_FORMAT_OBJECT_ROWS] = countSimply, _b[SOURCE_FORMAT_KEYED_COLUMNS] = function(rawData, startIndex, dimsDef) {
  var dimName = dimsDef[0].name;
  var col = rawData[dimName];
  return col ? col.length : 0;
}, _b[SOURCE_FORMAT_ORIGINAL] = countSimply, _b);
function getRawSourceDataCounter(sourceFormat, seriesLayoutBy) {
  var method = rawSourceDataCounterMap[getMethodMapKey(sourceFormat, seriesLayoutBy)];
  return method;
}
var getRawValueSimply = function(dataItem, dimIndex, property) {
  return dataItem[dimIndex];
};
var rawSourceValueGetterMap = (_c = {}, _c[SOURCE_FORMAT_ARRAY_ROWS] = getRawValueSimply, _c[SOURCE_FORMAT_OBJECT_ROWS] = function(dataItem, dimIndex, property) {
  return dataItem[property];
}, _c[SOURCE_FORMAT_KEYED_COLUMNS] = getRawValueSimply, _c[SOURCE_FORMAT_ORIGINAL] = function(dataItem, dimIndex, property) {
  var value = getDataItemValue(dataItem);
  return !(value instanceof Array) ? value : value[dimIndex];
}, _c[SOURCE_FORMAT_TYPED_ARRAY] = getRawValueSimply, _c);
function getRawSourceValueGetter(sourceFormat) {
  var method = rawSourceValueGetterMap[sourceFormat];
  return method;
}
function getMethodMapKey(sourceFormat, seriesLayoutBy) {
  return sourceFormat === SOURCE_FORMAT_ARRAY_ROWS ? sourceFormat + "_" + seriesLayoutBy : sourceFormat;
}
function retrieveRawValue(data, dataIndex, dim) {
  if (!data) {
    return;
  }
  var dataItem = data.getRawDataItem(dataIndex);
  if (dataItem == null) {
    return;
  }
  var store = data.getStore();
  var sourceFormat = store.getSource().sourceFormat;
  if (dim != null) {
    var dimIndex = data.getDimensionIndex(dim);
    var property = store.getDimensionProperty(dimIndex);
    return getRawSourceValueGetter(sourceFormat)(dataItem, dimIndex, property);
  } else {
    var result = dataItem;
    if (sourceFormat === SOURCE_FORMAT_ORIGINAL) {
      result = getDataItemValue(dataItem);
    }
    return result;
  }
}

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * This method builds the relationship between:
 * + "what the coord sys or series requires (see `coordDimensions`)",
 * + "what the user defines (in `encode` and `dimensions`, see `opt.dimensionsDefine` and `opt.encodeDefine`)"
 * + "what the data source provids (see `source`)".
 *
 * Some guess strategy will be adapted if user does not define something.
 * If no 'value' dimension specified, the first no-named dimension will be
 * named as 'value'.
 *
 * @return The results are always sorted by `storeDimIndex` asc.
 */
function prepareSeriesDataSchema(
// TODO: TYPE completeDimensions type
source, opt) {
  if (!isSourceInstance(source)) {
    source = createSourceFromSeriesDataOption(source);
  }
  opt = opt || {};
  var sysDims = opt.coordDimensions || [];
  var dimsDef = opt.dimensionsDefine || source.dimensionsDefine || [];
  var coordDimNameMap = createHashMap();
  var resultList = [];
  var dimCount = getDimCount(source, sysDims, dimsDef, opt.dimensionsCount);
  // Try to ignore unused dimensions if sharing a high dimension datastore
  // 30 is an experience value.
  var omitUnusedDimensions = opt.canOmitUnusedDimensions && shouldOmitUnusedDimensions(dimCount);
  var isUsingSourceDimensionsDef = dimsDef === source.dimensionsDefine;
  var dataDimNameMap = isUsingSourceDimensionsDef ? ensureSourceDimNameMap(source) : createDimNameMap(dimsDef);
  var encodeDef = opt.encodeDefine;
  if (!encodeDef && opt.encodeDefaulter) {
    encodeDef = opt.encodeDefaulter(source, dimCount);
  }
  var encodeDefMap = createHashMap(encodeDef);
  var indicesMap = new CtorInt32Array$1(dimCount);
  for (var i = 0; i < indicesMap.length; i++) {
    indicesMap[i] = -1;
  }
  function getResultItem(dimIdx) {
    var idx = indicesMap[dimIdx];
    if (idx < 0) {
      var dimDefItemRaw = dimsDef[dimIdx];
      var dimDefItem = isObject$2(dimDefItemRaw) ? dimDefItemRaw : {
        name: dimDefItemRaw
      };
      var resultItem = new SeriesDimensionDefine();
      var userDimName = dimDefItem.name;
      if (userDimName != null && dataDimNameMap.get(userDimName) != null) {
        // Only if `series.dimensions` is defined in option
        // displayName, will be set, and dimension will be displayed vertically in
        // tooltip by default.
        resultItem.name = resultItem.displayName = userDimName;
      }
      dimDefItem.type != null && (resultItem.type = dimDefItem.type);
      dimDefItem.displayName != null && (resultItem.displayName = dimDefItem.displayName);
      var newIdx = resultList.length;
      indicesMap[dimIdx] = newIdx;
      resultItem.storeDimIndex = dimIdx;
      resultList.push(resultItem);
      return resultItem;
    }
    return resultList[idx];
  }
  if (!omitUnusedDimensions) {
    for (var i = 0; i < dimCount; i++) {
      getResultItem(i);
    }
  }
  // Set `coordDim` and `coordDimIndex` by `encodeDefMap` and normalize `encodeDefMap`.
  encodeDefMap.each(function (dataDimsRaw, coordDim) {
    var dataDims = normalizeToArray(dataDimsRaw).slice();
    // Note: It is allowed that `dataDims.length` is `0`, e.g., options is
    // `{encode: {x: -1, y: 1}}`. Should not filter anything in
    // this case.
    if (dataDims.length === 1 && !isString(dataDims[0]) && dataDims[0] < 0) {
      encodeDefMap.set(coordDim, false);
      return;
    }
    var validDataDims = encodeDefMap.set(coordDim, []);
    each$4(dataDims, function (resultDimIdxOrName, idx) {
      // The input resultDimIdx can be dim name or index.
      var resultDimIdx = isString(resultDimIdxOrName) ? dataDimNameMap.get(resultDimIdxOrName) : resultDimIdxOrName;
      if (resultDimIdx != null && resultDimIdx < dimCount) {
        validDataDims[idx] = resultDimIdx;
        applyDim(getResultItem(resultDimIdx), coordDim, idx);
      }
    });
  });
  // Apply templates and default order from `sysDims`.
  var availDimIdx = 0;
  each$4(sysDims, function (sysDimItemRaw) {
    var coordDim;
    var sysDimItemDimsDef;
    var sysDimItemOtherDims;
    var sysDimItem;
    if (isString(sysDimItemRaw)) {
      coordDim = sysDimItemRaw;
      sysDimItem = {};
    } else {
      sysDimItem = sysDimItemRaw;
      coordDim = sysDimItem.name;
      var ordinalMeta = sysDimItem.ordinalMeta;
      sysDimItem.ordinalMeta = null;
      sysDimItem = extend({}, sysDimItem);
      sysDimItem.ordinalMeta = ordinalMeta;
      // `coordDimIndex` should not be set directly.
      sysDimItemDimsDef = sysDimItem.dimsDef;
      sysDimItemOtherDims = sysDimItem.otherDims;
      sysDimItem.name = sysDimItem.coordDim = sysDimItem.coordDimIndex = sysDimItem.dimsDef = sysDimItem.otherDims = null;
    }
    var dataDims = encodeDefMap.get(coordDim);
    // negative resultDimIdx means no need to mapping.
    if (dataDims === false) {
      return;
    }
    dataDims = normalizeToArray(dataDims);
    // dimensions provides default dim sequences.
    if (!dataDims.length) {
      for (var i = 0; i < (sysDimItemDimsDef && sysDimItemDimsDef.length || 1); i++) {
        while (availDimIdx < dimCount && getResultItem(availDimIdx).coordDim != null) {
          availDimIdx++;
        }
        availDimIdx < dimCount && dataDims.push(availDimIdx++);
      }
    }
    // Apply templates.
    each$4(dataDims, function (resultDimIdx, coordDimIndex) {
      var resultItem = getResultItem(resultDimIdx);
      // Coordinate system has a higher priority on dim type than source.
      if (isUsingSourceDimensionsDef && sysDimItem.type != null) {
        resultItem.type = sysDimItem.type;
      }
      applyDim(defaults(resultItem, sysDimItem), coordDim, coordDimIndex);
      if (resultItem.name == null && sysDimItemDimsDef) {
        var sysDimItemDimsDefItem = sysDimItemDimsDef[coordDimIndex];
        !isObject$2(sysDimItemDimsDefItem) && (sysDimItemDimsDefItem = {
          name: sysDimItemDimsDefItem
        });
        resultItem.name = resultItem.displayName = sysDimItemDimsDefItem.name;
        resultItem.defaultTooltip = sysDimItemDimsDefItem.defaultTooltip;
      }
      // FIXME refactor, currently only used in case: {otherDims: {tooltip: false}}
      sysDimItemOtherDims && defaults(resultItem.otherDims, sysDimItemOtherDims);
    });
  });
  function applyDim(resultItem, coordDim, coordDimIndex) {
    if (VISUAL_DIMENSIONS.get(coordDim) != null) {
      resultItem.otherDims[coordDim] = coordDimIndex;
    } else {
      resultItem.coordDim = coordDim;
      resultItem.coordDimIndex = coordDimIndex;
      coordDimNameMap.set(coordDim, true);
    }
  }
  // Make sure the first extra dim is 'value'.
  var generateCoord = opt.generateCoord;
  var generateCoordCount = opt.generateCoordCount;
  var fromZero = generateCoordCount != null;
  generateCoordCount = generateCoord ? generateCoordCount || 1 : 0;
  var extra = generateCoord || 'value';
  function ifNoNameFillWithCoordName(resultItem) {
    if (resultItem.name == null) {
      // Duplication will be removed in the next step.
      resultItem.name = resultItem.coordDim;
    }
  }
  // Set dim `name` and other `coordDim` and other props.
  if (!omitUnusedDimensions) {
    for (var resultDimIdx = 0; resultDimIdx < dimCount; resultDimIdx++) {
      var resultItem = getResultItem(resultDimIdx);
      var coordDim = resultItem.coordDim;
      if (coordDim == null) {
        // TODO no need to generate coordDim for isExtraCoord?
        resultItem.coordDim = genCoordDimName(extra, coordDimNameMap, fromZero);
        resultItem.coordDimIndex = 0;
        // Series specified generateCoord is using out.
        if (!generateCoord || generateCoordCount <= 0) {
          resultItem.isExtraCoord = true;
        }
        generateCoordCount--;
      }
      ifNoNameFillWithCoordName(resultItem);
      if (resultItem.type == null && (guessOrdinal(source, resultDimIdx) === BE_ORDINAL.Must
      // Consider the case:
      // {
      //    dataset: {source: [
      //        ['2001', 123],
      //        ['2002', 456],
      //        ...
      //        ['The others', 987],
      //    ]},
      //    series: {type: 'pie'}
      // }
      // The first column should better be treated as a "ordinal" although it
      // might not be detected as an "ordinal" by `guessOrdinal`.
      || resultItem.isExtraCoord && (resultItem.otherDims.itemName != null || resultItem.otherDims.seriesName != null))) {
        resultItem.type = 'ordinal';
      }
    }
  } else {
    each$4(resultList, function (resultItem) {
      // PENDING: guessOrdinal or let user specify type: 'ordinal' manually?
      ifNoNameFillWithCoordName(resultItem);
    });
    // Sort dimensions: there are some rule that use the last dim as label,
    // and for some latter travel process easier.
    resultList.sort(function (item0, item1) {
      return item0.storeDimIndex - item1.storeDimIndex;
    });
  }
  removeDuplication(resultList);
  return new SeriesDataSchema({
    source: source,
    dimensions: resultList,
    fullDimensionCount: dimCount,
    dimensionOmitted: omitUnusedDimensions
  });
}
function removeDuplication(result) {
  var duplicationMap = createHashMap();
  for (var i = 0; i < result.length; i++) {
    var dim = result[i];
    var dimOriginalName = dim.name;
    var count = duplicationMap.get(dimOriginalName) || 0;
    if (count > 0) {
      // Starts from 0.
      dim.name = dimOriginalName + (count - 1);
    }
    count++;
    duplicationMap.set(dimOriginalName, count);
  }
}
// ??? TODO
// Originally detect dimCount by data[0]. Should we
// optimize it to only by sysDims and dimensions and encode.
// So only necessary dims will be initialized.
// But
// (1) custom series should be considered. where other dims
// may be visited.
// (2) sometimes user need to calculate bubble size or use visualMap
// on other dimensions besides coordSys needed.
// So, dims that is not used by system, should be shared in data store?
function getDimCount(source, sysDims, dimsDef, optDimCount) {
  // Note that the result dimCount should not small than columns count
  // of data, otherwise `dataDimNameMap` checking will be incorrect.
  var dimCount = Math.max(source.dimensionsDetectedCount || 1, sysDims.length, dimsDef.length, optDimCount || 0);
  each$4(sysDims, function (sysDimItem) {
    var sysDimItemDimsDef;
    if (isObject$2(sysDimItem) && (sysDimItemDimsDef = sysDimItem.dimsDef)) {
      dimCount = Math.max(dimCount, sysDimItemDimsDef.length);
    }
  });
  return dimCount;
}
function genCoordDimName(name, map, fromZero) {
  if (fromZero || map.hasKey(name)) {
    var i = 0;
    while (map.hasKey(name + i)) {
      i++;
    }
    name += i;
  }
  map.set(name, true);
  return name;
}
/* Injected with object hook! */

/* Injected with object hook! */

/**
 * Note that it is too complicated to support 3d stack by value
 * (have to create two-dimension inverted index), so in 3d case
 * we just support that stacked by index.
 *
 * @param seriesModel
 * @param dimensionsInput The same as the input of <module:echarts/data/SeriesData>.
 *        The input will be modified.
 * @param opt
 * @param opt.stackedCoordDimension Specify a coord dimension if needed.
 * @param opt.byIndex=false
 * @return calculationInfo
 * {
 *     stackedDimension: string
 *     stackedByDimension: string
 *     isStackedByIndex: boolean
 *     stackedOverDimension: string
 *     stackResultDimension: string
 * }
 */
function enableDataStack(seriesModel, dimensionsInput, opt) {
  opt = opt || {};
  var byIndex = opt.byIndex;
  var stackedCoordDimension = opt.stackedCoordDimension;
  var dimensionDefineList;
  var schema;
  var store;
  if (isLegacyDimensionsInput(dimensionsInput)) {
    dimensionDefineList = dimensionsInput;
  } else {
    schema = dimensionsInput.schema;
    dimensionDefineList = schema.dimensions;
    store = dimensionsInput.store;
  }
  // Compatibal: when `stack` is set as '', do not stack.
  var mayStack = !!(seriesModel && seriesModel.get('stack'));
  var stackedByDimInfo;
  var stackedDimInfo;
  var stackResultDimension;
  var stackedOverDimension;
  each$4(dimensionDefineList, function (dimensionInfo, index) {
    if (isString(dimensionInfo)) {
      dimensionDefineList[index] = dimensionInfo = {
        name: dimensionInfo
      };
    }
    if (mayStack && !dimensionInfo.isExtraCoord) {
      // Find the first ordinal dimension as the stackedByDimInfo.
      if (!byIndex && !stackedByDimInfo && dimensionInfo.ordinalMeta) {
        stackedByDimInfo = dimensionInfo;
      }
      // Find the first stackable dimension as the stackedDimInfo.
      if (!stackedDimInfo && dimensionInfo.type !== 'ordinal' && dimensionInfo.type !== 'time' && (!stackedCoordDimension || stackedCoordDimension === dimensionInfo.coordDim)) {
        stackedDimInfo = dimensionInfo;
      }
    }
  });
  if (stackedDimInfo && !byIndex && !stackedByDimInfo) {
    // Compatible with previous design, value axis (time axis) only stack by index.
    // It may make sense if the user provides elaborately constructed data.
    byIndex = true;
  }
  // Add stack dimension, they can be both calculated by coordinate system in `unionExtent`.
  // That put stack logic in List is for using conveniently in echarts extensions, but it
  // might not be a good way.
  if (stackedDimInfo) {
    // Use a weird name that not duplicated with other names.
    // Also need to use seriesModel.id as postfix because different
    // series may share same data store. The stack dimension needs to be distinguished.
    stackResultDimension = '__\0ecstackresult_' + seriesModel.id;
    stackedOverDimension = '__\0ecstackedover_' + seriesModel.id;
    // Create inverted index to fast query index by value.
    if (stackedByDimInfo) {
      stackedByDimInfo.createInvertedIndices = true;
    }
    var stackedDimCoordDim_1 = stackedDimInfo.coordDim;
    var stackedDimType = stackedDimInfo.type;
    var stackedDimCoordIndex_1 = 0;
    each$4(dimensionDefineList, function (dimensionInfo) {
      if (dimensionInfo.coordDim === stackedDimCoordDim_1) {
        stackedDimCoordIndex_1++;
      }
    });
    var stackedOverDimensionDefine = {
      name: stackResultDimension,
      coordDim: stackedDimCoordDim_1,
      coordDimIndex: stackedDimCoordIndex_1,
      type: stackedDimType,
      isExtraCoord: true,
      isCalculationCoord: true,
      storeDimIndex: dimensionDefineList.length
    };
    var stackResultDimensionDefine = {
      name: stackedOverDimension,
      // This dimension contains stack base (generally, 0), so do not set it as
      // `stackedDimCoordDim` to avoid extent calculation, consider log scale.
      coordDim: stackedOverDimension,
      coordDimIndex: stackedDimCoordIndex_1 + 1,
      type: stackedDimType,
      isExtraCoord: true,
      isCalculationCoord: true,
      storeDimIndex: dimensionDefineList.length + 1
    };
    if (schema) {
      if (store) {
        stackedOverDimensionDefine.storeDimIndex = store.ensureCalculationDimension(stackedOverDimension, stackedDimType);
        stackResultDimensionDefine.storeDimIndex = store.ensureCalculationDimension(stackResultDimension, stackedDimType);
      }
      schema.appendCalculationDimension(stackedOverDimensionDefine);
      schema.appendCalculationDimension(stackResultDimensionDefine);
    } else {
      dimensionDefineList.push(stackedOverDimensionDefine);
      dimensionDefineList.push(stackResultDimensionDefine);
    }
  }
  return {
    stackedDimension: stackedDimInfo && stackedDimInfo.name,
    stackedByDimension: stackedByDimInfo && stackedByDimInfo.name,
    isStackedByIndex: byIndex,
    stackedOverDimension: stackedOverDimension,
    stackResultDimension: stackResultDimension
  };
}
function isLegacyDimensionsInput(dimensionsInput) {
  return !isSeriesDataSchema(dimensionsInput.schema);
}
function isDimensionStacked(data, stackedDim) {
  // Each single series only maps to one pair of axis. So we do not need to
  // check stackByDim, whatever stacked by a dimension or stacked by index.
  return !!stackedDim && stackedDim === data.getCalculationInfo('stackedDimension');
}
function getStackedDimension(data, targetDim) {
  return isDimensionStacked(data, targetDim) ? data.getCalculationInfo('stackResultDimension') : targetDim;
}
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/**
 * Triangle shape
 * @inner
 */
var Triangle = Path.extend({
  type: 'triangle',
  shape: {
    cx: 0,
    cy: 0,
    width: 0,
    height: 0
  },
  buildPath: function (path, shape) {
    var cx = shape.cx;
    var cy = shape.cy;
    var width = shape.width / 2;
    var height = shape.height / 2;
    path.moveTo(cx, cy - height);
    path.lineTo(cx + width, cy + height);
    path.lineTo(cx - width, cy + height);
    path.closePath();
  }
});
/**
 * Diamond shape
 * @inner
 */
var Diamond = Path.extend({
  type: 'diamond',
  shape: {
    cx: 0,
    cy: 0,
    width: 0,
    height: 0
  },
  buildPath: function (path, shape) {
    var cx = shape.cx;
    var cy = shape.cy;
    var width = shape.width / 2;
    var height = shape.height / 2;
    path.moveTo(cx, cy - height);
    path.lineTo(cx + width, cy);
    path.lineTo(cx, cy + height);
    path.lineTo(cx - width, cy);
    path.closePath();
  }
});
/**
 * Pin shape
 * @inner
 */
var Pin = Path.extend({
  type: 'pin',
  shape: {
    // x, y on the cusp
    x: 0,
    y: 0,
    width: 0,
    height: 0
  },
  buildPath: function (path, shape) {
    var x = shape.x;
    var y = shape.y;
    var w = shape.width / 5 * 3;
    // Height must be larger than width
    var h = Math.max(w, shape.height);
    var r = w / 2;
    // Dist on y with tangent point and circle center
    var dy = r * r / (h - r);
    var cy = y - h + r + dy;
    var angle = Math.asin(dy / r);
    // Dist on x with tangent point and circle center
    var dx = Math.cos(angle) * r;
    var tanX = Math.sin(angle);
    var tanY = Math.cos(angle);
    var cpLen = r * 0.6;
    var cpLen2 = r * 0.7;
    path.moveTo(x - dx, cy + dy);
    path.arc(x, cy, r, Math.PI - angle, Math.PI * 2 + angle);
    path.bezierCurveTo(x + dx - tanX * cpLen, cy + dy + tanY * cpLen, x, y - cpLen2, x, y);
    path.bezierCurveTo(x, y - cpLen2, x - dx + tanX * cpLen, cy + dy + tanY * cpLen, x - dx, cy + dy);
    path.closePath();
  }
});
/**
 * Arrow shape
 * @inner
 */
var Arrow = Path.extend({
  type: 'arrow',
  shape: {
    x: 0,
    y: 0,
    width: 0,
    height: 0
  },
  buildPath: function (ctx, shape) {
    var height = shape.height;
    var width = shape.width;
    var x = shape.x;
    var y = shape.y;
    var dx = width / 3 * 2;
    ctx.moveTo(x, y);
    ctx.lineTo(x + dx, y + height);
    ctx.lineTo(x, y + height / 4 * 3);
    ctx.lineTo(x - dx, y + height);
    ctx.lineTo(x, y);
    ctx.closePath();
  }
});
/**
 * Map of path constructors
 */
// TODO Use function to build symbol path.
var symbolCtors = {
  line: Line,
  rect: Rect,
  roundRect: Rect,
  square: Rect,
  circle: Circle,
  diamond: Diamond,
  pin: Pin,
  arrow: Arrow,
  triangle: Triangle
};
var symbolShapeMakers = {
  line: function (x, y, w, h, shape) {
    shape.x1 = x;
    shape.y1 = y + h / 2;
    shape.x2 = x + w;
    shape.y2 = y + h / 2;
  },
  rect: function (x, y, w, h, shape) {
    shape.x = x;
    shape.y = y;
    shape.width = w;
    shape.height = h;
  },
  roundRect: function (x, y, w, h, shape) {
    shape.x = x;
    shape.y = y;
    shape.width = w;
    shape.height = h;
    shape.r = Math.min(w, h) / 4;
  },
  square: function (x, y, w, h, shape) {
    var size = Math.min(w, h);
    shape.x = x;
    shape.y = y;
    shape.width = size;
    shape.height = size;
  },
  circle: function (x, y, w, h, shape) {
    // Put circle in the center of square
    shape.cx = x + w / 2;
    shape.cy = y + h / 2;
    shape.r = Math.min(w, h) / 2;
  },
  diamond: function (x, y, w, h, shape) {
    shape.cx = x + w / 2;
    shape.cy = y + h / 2;
    shape.width = w;
    shape.height = h;
  },
  pin: function (x, y, w, h, shape) {
    shape.x = x + w / 2;
    shape.y = y + h / 2;
    shape.width = w;
    shape.height = h;
  },
  arrow: function (x, y, w, h, shape) {
    shape.x = x + w / 2;
    shape.y = y + h / 2;
    shape.width = w;
    shape.height = h;
  },
  triangle: function (x, y, w, h, shape) {
    shape.cx = x + w / 2;
    shape.cy = y + h / 2;
    shape.width = w;
    shape.height = h;
  }
};
var symbolBuildProxies = {};
each$4(symbolCtors, function (Ctor, name) {
  symbolBuildProxies[name] = new Ctor();
});
var SymbolClz = Path.extend({
  type: 'symbol',
  shape: {
    symbolType: '',
    x: 0,
    y: 0,
    width: 0,
    height: 0
  },
  calculateTextPosition: function (out, config, rect) {
    var res = calculateTextPosition(out, config, rect);
    var shape = this.shape;
    if (shape && shape.symbolType === 'pin' && config.position === 'inside') {
      res.y = rect.y + rect.height * 0.4;
    }
    return res;
  },
  buildPath: function (ctx, shape, inBundle) {
    var symbolType = shape.symbolType;
    if (symbolType !== 'none') {
      var proxySymbol = symbolBuildProxies[symbolType];
      if (!proxySymbol) {
        // Default rect
        symbolType = 'rect';
        proxySymbol = symbolBuildProxies[symbolType];
      }
      symbolShapeMakers[symbolType](shape.x, shape.y, shape.width, shape.height, proxySymbol.shape);
      proxySymbol.buildPath(ctx, proxySymbol.shape, inBundle);
    }
  }
});
// Provide setColor helper method to avoid determine if set the fill or stroke outside
function symbolPathSetColor(color, innerColor) {
  if (this.type !== 'image') {
    var symbolStyle = this.style;
    if (this.__isEmptyBrush) {
      symbolStyle.stroke = color;
      symbolStyle.fill = innerColor || '#fff';
      // TODO Same width with lineStyle in LineView
      symbolStyle.lineWidth = 2;
    } else if (this.shape.symbolType === 'line') {
      symbolStyle.stroke = color;
    } else {
      symbolStyle.fill = color;
    }
    this.markRedraw();
  }
}
/**
 * Create a symbol element with given symbol configuration: shape, x, y, width, height, color
 */
function createSymbol(symbolType, x, y, w, h, color,
// whether to keep the ratio of w/h,
keepAspect) {
  // TODO Support image object, DynamicImage.
  var isEmpty = symbolType.indexOf('empty') === 0;
  if (isEmpty) {
    symbolType = symbolType.substr(5, 1).toLowerCase() + symbolType.substr(6);
  }
  var symbolPath;
  if (symbolType.indexOf('image://') === 0) {
    symbolPath = makeImage(symbolType.slice(8), new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
  } else if (symbolType.indexOf('path://') === 0) {
    symbolPath = makePath(symbolType.slice(7), {}, new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
  } else {
    symbolPath = new SymbolClz({
      shape: {
        symbolType: symbolType,
        x: x,
        y: y,
        width: w,
        height: h
      }
    });
  }
  symbolPath.__isEmptyBrush = isEmpty;
  // TODO Should deprecate setColor
  symbolPath.setColor = symbolPathSetColor;
  if (color) {
    symbolPath.setColor(color);
  }
  return symbolPath;
}
function normalizeSymbolOffset(symbolOffset, symbolSize) {
  if (symbolOffset == null) {
    return;
  }
  if (!isArray(symbolOffset)) {
    symbolOffset = [symbolOffset, symbolOffset];
  }
  return [parsePercent(symbolOffset[0], symbolSize[0]) || 0, parsePercent(retrieve2(symbolOffset[1], symbolOffset[0]), symbolSize[1]) || 0];
}
/* Injected with object hook! */

/**
 * @return label string. Not null/undefined
 */
function getDefaultLabel(data, dataIndex) {
  var labelDims = data.mapDimensionsAll('defaultedLabel');
  var len = labelDims.length;
  // Simple optimization (in lots of cases, label dims length is 1)
  if (len === 1) {
    var rawVal = retrieveRawValue(data, dataIndex, labelDims[0]);
    return rawVal != null ? rawVal + '' : null;
  } else if (len) {
    var vals = [];
    for (var i = 0; i < labelDims.length; i++) {
      vals.push(retrieveRawValue(data, dataIndex, labelDims[i]));
    }
    return vals.join(' ');
  }
}
function getDefaultInterpolatedLabel(data, interpolatedValue) {
  var labelDims = data.mapDimensionsAll('defaultedLabel');
  if (!isArray(interpolatedValue)) {
    return interpolatedValue + '';
  }
  var vals = [];
  for (var i = 0; i < labelDims.length; i++) {
    var dimIndex = data.getDimensionIndex(labelDims[i]);
    if (dimIndex >= 0) {
      vals.push(interpolatedValue[dimIndex]);
    }
  }
  return vals.join(' ');
}
/* Injected with object hook! */

/* global Float32Array */
var supportFloat32Array = typeof Float32Array !== 'undefined';
var Float32ArrayCtor = !supportFloat32Array ? Array : Float32Array;
function createFloat32Array(arg) {
  if (isArray(arg)) {
    // Return self directly if don't support TypedArray.
    return supportFloat32Array ? new Float32Array(arg) : arg;
  }
  // Else is number
  return new Float32ArrayCtor(arg);
}
/* Injected with object hook! */

/**
 * @return {string} If large mode changed, return string 'reset';
 */
function createRenderPlanner() {
  var inner = makeInner();
  return function (seriesModel) {
    var fields = inner(seriesModel);
    var pipelineContext = seriesModel.pipelineContext;
    var originalLarge = !!fields.large;
    var originalProgressive = !!fields.progressiveRender;
    // FIXME: if the planner works on a filtered series, `pipelineContext` does not
    // exists. See #11611 . Probably we need to modify this structure, see the comment
    // on `performRawSeries` in `Schedular.js`.
    var large = fields.large = !!(pipelineContext && pipelineContext.large);
    var progressive = fields.progressiveRender = !!(pipelineContext && pipelineContext.progressiveRender);
    return !!(originalLarge !== large || originalProgressive !== progressive) && 'reset';
  };
}
/* Injected with object hook! */

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/**
 * Sausage: similar to sector, but have half circle on both sides
 */
var SausageShape = /** @class */function () {
  function SausageShape() {
    this.cx = 0;
    this.cy = 0;
    this.r0 = 0;
    this.r = 0;
    this.startAngle = 0;
    this.endAngle = Math.PI * 2;
    this.clockwise = true;
  }
  return SausageShape;
}();
var SausagePath = /** @class */function (_super) {
  __extends(SausagePath, _super);
  function SausagePath(opts) {
    var _this = _super.call(this, opts) || this;
    _this.type = 'sausage';
    return _this;
  }
  SausagePath.prototype.getDefaultShape = function () {
    return new SausageShape();
  };
  SausagePath.prototype.buildPath = function (ctx, shape) {
    var cx = shape.cx;
    var cy = shape.cy;
    var r0 = Math.max(shape.r0 || 0, 0);
    var r = Math.max(shape.r, 0);
    var dr = (r - r0) * 0.5;
    var rCenter = r0 + dr;
    var startAngle = shape.startAngle;
    var endAngle = shape.endAngle;
    var clockwise = shape.clockwise;
    var PI2 = Math.PI * 2;
    var lessThanCircle = clockwise ? endAngle - startAngle < PI2 : startAngle - endAngle < PI2;
    if (!lessThanCircle) {
      // Normalize angles
      startAngle = endAngle - (clockwise ? PI2 : -PI2);
    }
    var unitStartX = Math.cos(startAngle);
    var unitStartY = Math.sin(startAngle);
    var unitEndX = Math.cos(endAngle);
    var unitEndY = Math.sin(endAngle);
    if (lessThanCircle) {
      ctx.moveTo(unitStartX * r0 + cx, unitStartY * r0 + cy);
      ctx.arc(unitStartX * rCenter + cx, unitStartY * rCenter + cy, dr, -Math.PI + startAngle, startAngle, !clockwise);
    } else {
      ctx.moveTo(unitStartX * r + cx, unitStartY * r + cy);
    }
    ctx.arc(cx, cy, r, startAngle, endAngle, !clockwise);
    ctx.arc(unitEndX * rCenter + cx, unitEndY * rCenter + cy, dr, endAngle - Math.PI * 2, endAngle - Math.PI, !clockwise);
    if (r0 !== 0) {
      ctx.arc(cx, cy, r0, endAngle, startAngle, clockwise);
    }
    // ctx.closePath();
  };

return SausagePath;
}(Path);
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var requestAnimationFrame$1;
requestAnimationFrame$1 = (env.hasGlobalWindow
    && ((window.requestAnimationFrame && window.requestAnimationFrame.bind(window))
        || (window.msRequestAnimationFrame && window.msRequestAnimationFrame.bind(window))
        || window.mozRequestAnimationFrame
        || window.webkitRequestAnimationFrame)) || function (func) {
    return setTimeout(func, 16);
};

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/*!
* ZRender, a high performance 2d drawing library.
*
* Copyright (c) 2013, Baidu Inc.
* All rights reserved.
*
* LICENSE
* https://github.com/ecomfe/zrender/blob/master/LICENSE.txt
*/
var painterCtors = {};
var instances$1 = {};
function delInstance(id) {
  delete instances$1[id];
}
function isDarkMode(backgroundColor) {
  if (!backgroundColor) {
    return false;
  }
  if (typeof backgroundColor === "string") {
    return lum(backgroundColor, 1) < DARK_MODE_THRESHOLD;
  } else if (backgroundColor.colorStops) {
    var colorStops = backgroundColor.colorStops;
    var totalLum = 0;
    var len = colorStops.length;
    for (var i = 0; i < len; i++) {
      totalLum += lum(colorStops[i].color, 1);
    }
    totalLum /= len;
    return totalLum < DARK_MODE_THRESHOLD;
  }
  return false;
}
var ZRender = function() {
  function ZRender2(id, dom, opts) {
    var _this = this;
    this._sleepAfterStill = 10;
    this._stillFrameAccum = 0;
    this._needsRefresh = true;
    this._needsRefreshHover = true;
    this._darkMode = false;
    opts = opts || {};
    this.dom = dom;
    this.id = id;
    var storage = new Storage$1();
    var rendererType = opts.renderer || "canvas";
    if (!painterCtors[rendererType]) {
      rendererType = keys(painterCtors)[0];
    }
    opts.useDirtyRect = opts.useDirtyRect == null ? false : opts.useDirtyRect;
    var painter = new painterCtors[rendererType](dom, storage, opts, id);
    var ssrMode = opts.ssr || painter.ssrOnly;
    this.storage = storage;
    this.painter = painter;
    var handlerProxy = !env.node && !env.worker && !ssrMode ? new HandlerDomProxy(painter.getViewportRoot(), painter.root) : null;
    var useCoarsePointer = opts.useCoarsePointer;
    var usePointerSize = useCoarsePointer == null || useCoarsePointer === "auto" ? env.touchEventsSupported : !!useCoarsePointer;
    var defaultPointerSize = 44;
    var pointerSize;
    if (usePointerSize) {
      pointerSize = retrieve2(opts.pointerSize, defaultPointerSize);
    }
    this.handler = new Handler(storage, painter, handlerProxy, painter.root, pointerSize);
    this.animation = new Animation({
      stage: {
        update: ssrMode ? null : function() {
          return _this._flush(true);
        }
      }
    });
    if (!ssrMode) {
      this.animation.start();
    }
  }
  ZRender2.prototype.add = function(el) {
    if (this._disposed || !el) {
      return;
    }
    this.storage.addRoot(el);
    el.addSelfToZr(this);
    this.refresh();
  };
  ZRender2.prototype.remove = function(el) {
    if (this._disposed || !el) {
      return;
    }
    this.storage.delRoot(el);
    el.removeSelfFromZr(this);
    this.refresh();
  };
  ZRender2.prototype.configLayer = function(zLevel, config) {
    if (this._disposed) {
      return;
    }
    if (this.painter.configLayer) {
      this.painter.configLayer(zLevel, config);
    }
    this.refresh();
  };
  ZRender2.prototype.setBackgroundColor = function(backgroundColor) {
    if (this._disposed) {
      return;
    }
    if (this.painter.setBackgroundColor) {
      this.painter.setBackgroundColor(backgroundColor);
    }
    this.refresh();
    this._backgroundColor = backgroundColor;
    this._darkMode = isDarkMode(backgroundColor);
  };
  ZRender2.prototype.getBackgroundColor = function() {
    return this._backgroundColor;
  };
  ZRender2.prototype.setDarkMode = function(darkMode) {
    this._darkMode = darkMode;
  };
  ZRender2.prototype.isDarkMode = function() {
    return this._darkMode;
  };
  ZRender2.prototype.refreshImmediately = function(fromInside) {
    if (this._disposed) {
      return;
    }
    if (!fromInside) {
      this.animation.update(true);
    }
    this._needsRefresh = false;
    this.painter.refresh();
    this._needsRefresh = false;
  };
  ZRender2.prototype.refresh = function() {
    if (this._disposed) {
      return;
    }
    this._needsRefresh = true;
    this.animation.start();
  };
  ZRender2.prototype.flush = function() {
    if (this._disposed) {
      return;
    }
    this._flush(false);
  };
  ZRender2.prototype._flush = function(fromInside) {
    var triggerRendered;
    var start = getTime();
    if (this._needsRefresh) {
      triggerRendered = true;
      this.refreshImmediately(fromInside);
    }
    if (this._needsRefreshHover) {
      triggerRendered = true;
      this.refreshHoverImmediately();
    }
    var end = getTime();
    if (triggerRendered) {
      this._stillFrameAccum = 0;
      this.trigger("rendered", {
        elapsedTime: end - start
      });
    } else if (this._sleepAfterStill > 0) {
      this._stillFrameAccum++;
      if (this._stillFrameAccum > this._sleepAfterStill) {
        this.animation.stop();
      }
    }
  };
  ZRender2.prototype.setSleepAfterStill = function(stillFramesCount) {
    this._sleepAfterStill = stillFramesCount;
  };
  ZRender2.prototype.wakeUp = function() {
    if (this._disposed) {
      return;
    }
    this.animation.start();
    this._stillFrameAccum = 0;
  };
  ZRender2.prototype.refreshHover = function() {
    this._needsRefreshHover = true;
  };
  ZRender2.prototype.refreshHoverImmediately = function() {
    if (this._disposed) {
      return;
    }
    this._needsRefreshHover = false;
    if (this.painter.refreshHover && this.painter.getType() === "canvas") {
      this.painter.refreshHover();
    }
  };
  ZRender2.prototype.resize = function(opts) {
    if (this._disposed) {
      return;
    }
    opts = opts || {};
    this.painter.resize(opts.width, opts.height);
    this.handler.resize();
  };
  ZRender2.prototype.clearAnimation = function() {
    if (this._disposed) {
      return;
    }
    this.animation.clear();
  };
  ZRender2.prototype.getWidth = function() {
    if (this._disposed) {
      return;
    }
    return this.painter.getWidth();
  };
  ZRender2.prototype.getHeight = function() {
    if (this._disposed) {
      return;
    }
    return this.painter.getHeight();
  };
  ZRender2.prototype.setCursorStyle = function(cursorStyle) {
    if (this._disposed) {
      return;
    }
    this.handler.setCursorStyle(cursorStyle);
  };
  ZRender2.prototype.findHover = function(x, y) {
    if (this._disposed) {
      return;
    }
    return this.handler.findHover(x, y);
  };
  ZRender2.prototype.on = function(eventName, eventHandler, context) {
    if (!this._disposed) {
      this.handler.on(eventName, eventHandler, context);
    }
    return this;
  };
  ZRender2.prototype.off = function(eventName, eventHandler) {
    if (this._disposed) {
      return;
    }
    this.handler.off(eventName, eventHandler);
  };
  ZRender2.prototype.trigger = function(eventName, event) {
    if (this._disposed) {
      return;
    }
    this.handler.trigger(eventName, event);
  };
  ZRender2.prototype.clear = function() {
    if (this._disposed) {
      return;
    }
    var roots = this.storage.getRoots();
    for (var i = 0; i < roots.length; i++) {
      if (roots[i] instanceof Group$2) {
        roots[i].removeSelfFromZr(this);
      }
    }
    this.storage.delAllRoots();
    this.painter.clear();
  };
  ZRender2.prototype.dispose = function() {
    if (this._disposed) {
      return;
    }
    this.animation.stop();
    this.clear();
    this.storage.dispose();
    this.painter.dispose();
    this.handler.dispose();
    this.animation = this.storage = this.painter = this.handler = null;
    this._disposed = true;
    delInstance(this.id);
  };
  return ZRender2;
}();
function init$1(dom, opts) {
  var zr = new ZRender(guid(), dom, opts);
  instances$1[zr.id] = zr;
  return zr;
}
function registerPainter(name, Ctor) {
  painterCtors[name] = Ctor;
}

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/* Injected with object hook! */

var reCreateSeriesIndices;
var assertSeriesInitialized;
var initBase;
var OPTION_INNER_KEY = "\0_ec_inner";
var OPTION_INNER_VALUE = 1;
var GlobalModel = (
  /** @class */
  function(_super) {
    __extends(GlobalModel2, _super);
    function GlobalModel2() {
      return _super !== null && _super.apply(this, arguments) || this;
    }
    GlobalModel2.prototype.init = function(option, parentModel, ecModel, theme, locale, optionManager) {
      theme = theme || {};
      this.option = null;
      this._theme = new Model(theme);
      this._locale = new Model(locale);
      this._optionManager = optionManager;
    };
    GlobalModel2.prototype.setOption = function(option, opts, optionPreprocessorFuncs) {
      var innerOpt = normalizeSetOptionInput(opts);
      this._optionManager.setOption(option, optionPreprocessorFuncs, innerOpt);
      this._resetOption(null, innerOpt);
    };
    GlobalModel2.prototype.resetOption = function(type, opt) {
      return this._resetOption(type, normalizeSetOptionInput(opt));
    };
    GlobalModel2.prototype._resetOption = function(type, opt) {
      var optionChanged = false;
      var optionManager = this._optionManager;
      if (!type || type === "recreate") {
        var baseOption = optionManager.mountOption(type === "recreate");
        if (!this.option || type === "recreate") {
          initBase(this, baseOption);
        } else {
          this.restoreData();
          this._mergeOption(baseOption, opt);
        }
        optionChanged = true;
      }
      if (type === "timeline" || type === "media") {
        this.restoreData();
      }
      if (!type || type === "recreate" || type === "timeline") {
        var timelineOption = optionManager.getTimelineOption(this);
        if (timelineOption) {
          optionChanged = true;
          this._mergeOption(timelineOption, opt);
        }
      }
      if (!type || type === "recreate" || type === "media") {
        var mediaOptions = optionManager.getMediaOption(this);
        if (mediaOptions.length) {
          each$4(mediaOptions, function(mediaOption) {
            optionChanged = true;
            this._mergeOption(mediaOption, opt);
          }, this);
        }
      }
      return optionChanged;
    };
    GlobalModel2.prototype.mergeOption = function(option) {
      this._mergeOption(option, null);
    };
    GlobalModel2.prototype._mergeOption = function(newOption, opt) {
      var option = this.option;
      var componentsMap = this._componentsMap;
      var componentsCount = this._componentsCount;
      var newCmptTypes = [];
      var newCmptTypeMap = createHashMap();
      var replaceMergeMainTypeMap = opt && opt.replaceMergeMainTypeMap;
      resetSourceDefaulter(this);
      each$4(newOption, function(componentOption, mainType) {
        if (componentOption == null) {
          return;
        }
        if (!ComponentModel.hasClass(mainType)) {
          option[mainType] = option[mainType] == null ? clone$2(componentOption) : merge(option[mainType], componentOption, true);
        } else if (mainType) {
          newCmptTypes.push(mainType);
          newCmptTypeMap.set(mainType, true);
        }
      });
      if (replaceMergeMainTypeMap) {
        replaceMergeMainTypeMap.each(function(val, mainTypeInReplaceMerge) {
          if (ComponentModel.hasClass(mainTypeInReplaceMerge) && !newCmptTypeMap.get(mainTypeInReplaceMerge)) {
            newCmptTypes.push(mainTypeInReplaceMerge);
            newCmptTypeMap.set(mainTypeInReplaceMerge, true);
          }
        });
      }
      ComponentModel.topologicalTravel(newCmptTypes, ComponentModel.getAllClassMainTypes(), visitComponent, this);
      function visitComponent(mainType) {
        var newCmptOptionList = concatInternalOptions(this, mainType, normalizeToArray(newOption[mainType]));
        var oldCmptList = componentsMap.get(mainType);
        var mergeMode = (
          // `!oldCmptList` means init. See the comment in `mappingToExists`
          !oldCmptList ? "replaceAll" : replaceMergeMainTypeMap && replaceMergeMainTypeMap.get(mainType) ? "replaceMerge" : "normalMerge"
        );
        var mappingResult = mappingToExists(oldCmptList, newCmptOptionList, mergeMode);
        setComponentTypeToKeyInfo(mappingResult, mainType, ComponentModel);
        option[mainType] = null;
        componentsMap.set(mainType, null);
        componentsCount.set(mainType, 0);
        var optionsByMainType = [];
        var cmptsByMainType = [];
        var cmptsCountByMainType = 0;
        var tooltipExists;
        each$4(mappingResult, function(resultItem, index) {
          var componentModel = resultItem.existing;
          var newCmptOption = resultItem.newOption;
          if (!newCmptOption) {
            if (componentModel) {
              componentModel.mergeOption({}, this);
              componentModel.optionUpdated({}, false);
            }
          } else {
            var isSeriesType = mainType === "series";
            var ComponentModelClass = ComponentModel.getClass(
              mainType,
              resultItem.keyInfo.subType,
              !isSeriesType
              // Give a more detailed warn later if series don't exists
            );
            if (!ComponentModelClass) {
              return;
            }
            if (mainType === "tooltip") {
              if (tooltipExists) {
                return;
              }
              tooltipExists = true;
            }
            if (componentModel && componentModel.constructor === ComponentModelClass) {
              componentModel.name = resultItem.keyInfo.name;
              componentModel.mergeOption(newCmptOption, this);
              componentModel.optionUpdated(newCmptOption, false);
            } else {
              var extraOpt = extend({
                componentIndex: index
              }, resultItem.keyInfo);
              componentModel = new ComponentModelClass(newCmptOption, this, this, extraOpt);
              extend(componentModel, extraOpt);
              if (resultItem.brandNew) {
                componentModel.__requireNewView = true;
              }
              componentModel.init(newCmptOption, this, this);
              componentModel.optionUpdated(null, true);
            }
          }
          if (componentModel) {
            optionsByMainType.push(componentModel.option);
            cmptsByMainType.push(componentModel);
            cmptsCountByMainType++;
          } else {
            optionsByMainType.push(void 0);
            cmptsByMainType.push(void 0);
          }
        }, this);
        option[mainType] = optionsByMainType;
        componentsMap.set(mainType, cmptsByMainType);
        componentsCount.set(mainType, cmptsCountByMainType);
        if (mainType === "series") {
          reCreateSeriesIndices(this);
        }
      }
      if (!this._seriesIndices) {
        reCreateSeriesIndices(this);
      }
    };
    GlobalModel2.prototype.getOption = function() {
      var option = clone$2(this.option);
      each$4(option, function(optInMainType, mainType) {
        if (ComponentModel.hasClass(mainType)) {
          var opts = normalizeToArray(optInMainType);
          var realLen = opts.length;
          var metNonInner = false;
          for (var i = realLen - 1; i >= 0; i--) {
            if (opts[i] && !isComponentIdInternal(opts[i])) {
              metNonInner = true;
            } else {
              opts[i] = null;
              !metNonInner && realLen--;
            }
          }
          opts.length = realLen;
          option[mainType] = opts;
        }
      });
      delete option[OPTION_INNER_KEY];
      return option;
    };
    GlobalModel2.prototype.getTheme = function() {
      return this._theme;
    };
    GlobalModel2.prototype.getLocaleModel = function() {
      return this._locale;
    };
    GlobalModel2.prototype.setUpdatePayload = function(payload) {
      this._payload = payload;
    };
    GlobalModel2.prototype.getUpdatePayload = function() {
      return this._payload;
    };
    GlobalModel2.prototype.getComponent = function(mainType, idx) {
      var list = this._componentsMap.get(mainType);
      if (list) {
        var cmpt = list[idx || 0];
        if (cmpt) {
          return cmpt;
        } else if (idx == null) {
          for (var i = 0; i < list.length; i++) {
            if (list[i]) {
              return list[i];
            }
          }
        }
      }
    };
    GlobalModel2.prototype.queryComponents = function(condition) {
      var mainType = condition.mainType;
      if (!mainType) {
        return [];
      }
      var index = condition.index;
      var id = condition.id;
      var name = condition.name;
      var cmpts = this._componentsMap.get(mainType);
      if (!cmpts || !cmpts.length) {
        return [];
      }
      var result;
      if (index != null) {
        result = [];
        each$4(normalizeToArray(index), function(idx) {
          cmpts[idx] && result.push(cmpts[idx]);
        });
      } else if (id != null) {
        result = queryByIdOrName("id", id, cmpts);
      } else if (name != null) {
        result = queryByIdOrName("name", name, cmpts);
      } else {
        result = filter(cmpts, function(cmpt) {
          return !!cmpt;
        });
      }
      return filterBySubType(result, condition);
    };
    GlobalModel2.prototype.findComponents = function(condition) {
      var query = condition.query;
      var mainType = condition.mainType;
      var queryCond = getQueryCond(query);
      var result = queryCond ? this.queryComponents(queryCond) : filter(this._componentsMap.get(mainType), function(cmpt) {
        return !!cmpt;
      });
      return doFilter(filterBySubType(result, condition));
      function getQueryCond(q) {
        var indexAttr = mainType + "Index";
        var idAttr = mainType + "Id";
        var nameAttr = mainType + "Name";
        return q && (q[indexAttr] != null || q[idAttr] != null || q[nameAttr] != null) ? {
          mainType,
          // subType will be filtered finally.
          index: q[indexAttr],
          id: q[idAttr],
          name: q[nameAttr]
        } : null;
      }
      function doFilter(res) {
        return condition.filter ? filter(res, condition.filter) : res;
      }
    };
    GlobalModel2.prototype.eachComponent = function(mainType, cb, context) {
      var componentsMap = this._componentsMap;
      if (isFunction(mainType)) {
        var ctxForAll_1 = cb;
        var cbForAll_1 = mainType;
        componentsMap.each(function(cmpts2, componentType) {
          for (var i2 = 0; cmpts2 && i2 < cmpts2.length; i2++) {
            var cmpt2 = cmpts2[i2];
            cmpt2 && cbForAll_1.call(ctxForAll_1, componentType, cmpt2, cmpt2.componentIndex);
          }
        });
      } else {
        var cmpts = isString(mainType) ? componentsMap.get(mainType) : isObject$2(mainType) ? this.findComponents(mainType) : null;
        for (var i = 0; cmpts && i < cmpts.length; i++) {
          var cmpt = cmpts[i];
          cmpt && cb.call(context, cmpt, cmpt.componentIndex);
        }
      }
    };
    GlobalModel2.prototype.getSeriesByName = function(name) {
      var nameStr = convertOptionIdName(name, null);
      return filter(this._componentsMap.get("series"), function(oneSeries) {
        return !!oneSeries && nameStr != null && oneSeries.name === nameStr;
      });
    };
    GlobalModel2.prototype.getSeriesByIndex = function(seriesIndex) {
      return this._componentsMap.get("series")[seriesIndex];
    };
    GlobalModel2.prototype.getSeriesByType = function(subType) {
      return filter(this._componentsMap.get("series"), function(oneSeries) {
        return !!oneSeries && oneSeries.subType === subType;
      });
    };
    GlobalModel2.prototype.getSeries = function() {
      return filter(this._componentsMap.get("series"), function(oneSeries) {
        return !!oneSeries;
      });
    };
    GlobalModel2.prototype.getSeriesCount = function() {
      return this._componentsCount.get("series");
    };
    GlobalModel2.prototype.eachSeries = function(cb, context) {
      assertSeriesInitialized(this);
      each$4(this._seriesIndices, function(rawSeriesIndex) {
        var series = this._componentsMap.get("series")[rawSeriesIndex];
        cb.call(context, series, rawSeriesIndex);
      }, this);
    };
    GlobalModel2.prototype.eachRawSeries = function(cb, context) {
      each$4(this._componentsMap.get("series"), function(series) {
        series && cb.call(context, series, series.componentIndex);
      });
    };
    GlobalModel2.prototype.eachSeriesByType = function(subType, cb, context) {
      assertSeriesInitialized(this);
      each$4(this._seriesIndices, function(rawSeriesIndex) {
        var series = this._componentsMap.get("series")[rawSeriesIndex];
        if (series.subType === subType) {
          cb.call(context, series, rawSeriesIndex);
        }
      }, this);
    };
    GlobalModel2.prototype.eachRawSeriesByType = function(subType, cb, context) {
      return each$4(this.getSeriesByType(subType), cb, context);
    };
    GlobalModel2.prototype.isSeriesFiltered = function(seriesModel) {
      assertSeriesInitialized(this);
      return this._seriesIndicesMap.get(seriesModel.componentIndex) == null;
    };
    GlobalModel2.prototype.getCurrentSeriesIndices = function() {
      return (this._seriesIndices || []).slice();
    };
    GlobalModel2.prototype.filterSeries = function(cb, context) {
      assertSeriesInitialized(this);
      var newSeriesIndices = [];
      each$4(this._seriesIndices, function(seriesRawIdx) {
        var series = this._componentsMap.get("series")[seriesRawIdx];
        cb.call(context, series, seriesRawIdx) && newSeriesIndices.push(seriesRawIdx);
      }, this);
      this._seriesIndices = newSeriesIndices;
      this._seriesIndicesMap = createHashMap(newSeriesIndices);
    };
    GlobalModel2.prototype.restoreData = function(payload) {
      reCreateSeriesIndices(this);
      var componentsMap = this._componentsMap;
      var componentTypes = [];
      componentsMap.each(function(components, componentType) {
        if (ComponentModel.hasClass(componentType)) {
          componentTypes.push(componentType);
        }
      });
      ComponentModel.topologicalTravel(componentTypes, ComponentModel.getAllClassMainTypes(), function(componentType) {
        each$4(componentsMap.get(componentType), function(component) {
          if (component && (componentType !== "series" || !isNotTargetSeries(component, payload))) {
            component.restoreData();
          }
        });
      });
    };
    GlobalModel2.internalField = function() {
      reCreateSeriesIndices = function(ecModel) {
        var seriesIndices = ecModel._seriesIndices = [];
        each$4(ecModel._componentsMap.get("series"), function(series) {
          series && seriesIndices.push(series.componentIndex);
        });
        ecModel._seriesIndicesMap = createHashMap(seriesIndices);
      };
      assertSeriesInitialized = function(ecModel) {
      };
      initBase = function(ecModel, baseOption) {
        ecModel.option = {};
        ecModel.option[OPTION_INNER_KEY] = OPTION_INNER_VALUE;
        ecModel._componentsMap = createHashMap({
          series: []
        });
        ecModel._componentsCount = createHashMap();
        var airaOption = baseOption.aria;
        if (isObject$2(airaOption) && airaOption.enabled == null) {
          airaOption.enabled = true;
        }
        mergeTheme(baseOption, ecModel._theme.option);
        merge(baseOption, globalDefault, false);
        ecModel._mergeOption(baseOption, null);
      };
    }();
    return GlobalModel2;
  }(Model)
);
function isNotTargetSeries(seriesModel, payload) {
  if (payload) {
    var index = payload.seriesIndex;
    var id = payload.seriesId;
    var name_1 = payload.seriesName;
    return index != null && seriesModel.componentIndex !== index || id != null && seriesModel.id !== id || name_1 != null && seriesModel.name !== name_1;
  }
}
function mergeTheme(option, theme) {
  var notMergeColorLayer = option.color && !option.colorLayer;
  each$4(theme, function(themeItem, name) {
    if (name === "colorLayer" && notMergeColorLayer) {
      return;
    }
    if (!ComponentModel.hasClass(name)) {
      if (typeof themeItem === "object") {
        option[name] = !option[name] ? clone$2(themeItem) : merge(option[name], themeItem, false);
      } else {
        if (option[name] == null) {
          option[name] = themeItem;
        }
      }
    }
  });
}
function queryByIdOrName(attr, idOrName, cmpts) {
  if (isArray(idOrName)) {
    var keyMap_1 = createHashMap();
    each$4(idOrName, function(idOrNameItem) {
      if (idOrNameItem != null) {
        var idName = convertOptionIdName(idOrNameItem, null);
        idName != null && keyMap_1.set(idOrNameItem, true);
      }
    });
    return filter(cmpts, function(cmpt) {
      return cmpt && keyMap_1.get(cmpt[attr]);
    });
  } else {
    var idName_1 = convertOptionIdName(idOrName, null);
    return filter(cmpts, function(cmpt) {
      return cmpt && idName_1 != null && cmpt[attr] === idName_1;
    });
  }
}
function filterBySubType(components, condition) {
  return condition.hasOwnProperty("subType") ? filter(components, function(cmpt) {
    return cmpt && cmpt.subType === condition.subType;
  }) : components;
}
function normalizeSetOptionInput(opts) {
  var replaceMergeMainTypeMap = createHashMap();
  opts && each$4(normalizeToArray(opts.replaceMerge), function(mainType) {
    replaceMergeMainTypeMap.set(mainType, true);
  });
  return {
    replaceMergeMainTypeMap
  };
}
mixin(GlobalModel, PaletteMixin);

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

// (1) [Caution]: the logic is correct based on the premises:
//     data processing stage is blocked in stream.
//     See <module:echarts/stream/Scheduler#performDataProcessorTasks>
// (2) Only register once when import repeatedly.
//     Should be executed after series is filtered and before stack calculation.
function dataStack(ecModel) {
  var stackInfoMap = createHashMap();
  ecModel.eachSeries(function (seriesModel) {
    var stack = seriesModel.get('stack');
    // Compatible: when `stack` is set as '', do not stack.
    if (stack) {
      var stackInfoList = stackInfoMap.get(stack) || stackInfoMap.set(stack, []);
      var data = seriesModel.getData();
      var stackInfo = {
        // Used for calculate axis extent automatically.
        // TODO: Type getCalculationInfo return more specific type?
        stackResultDimension: data.getCalculationInfo('stackResultDimension'),
        stackedOverDimension: data.getCalculationInfo('stackedOverDimension'),
        stackedDimension: data.getCalculationInfo('stackedDimension'),
        stackedByDimension: data.getCalculationInfo('stackedByDimension'),
        isStackedByIndex: data.getCalculationInfo('isStackedByIndex'),
        data: data,
        seriesModel: seriesModel
      };
      // If stacked on axis that do not support data stack.
      if (!stackInfo.stackedDimension || !(stackInfo.isStackedByIndex || stackInfo.stackedByDimension)) {
        return;
      }
      stackInfoList.length && data.setCalculationInfo('stackedOnSeries', stackInfoList[stackInfoList.length - 1].seriesModel);
      stackInfoList.push(stackInfo);
    }
  });
  stackInfoMap.each(calculateStack);
}
function calculateStack(stackInfoList) {
  each$4(stackInfoList, function (targetStackInfo, idxInStack) {
    var resultVal = [];
    var resultNaN = [NaN, NaN];
    var dims = [targetStackInfo.stackResultDimension, targetStackInfo.stackedOverDimension];
    var targetData = targetStackInfo.data;
    var isStackedByIndex = targetStackInfo.isStackedByIndex;
    var stackStrategy = targetStackInfo.seriesModel.get('stackStrategy') || 'samesign';
    // Should not write on raw data, because stack series model list changes
    // depending on legend selection.
    targetData.modify(dims, function (v0, v1, dataIndex) {
      var sum = targetData.get(targetStackInfo.stackedDimension, dataIndex);
      // Consider `connectNulls` of line area, if value is NaN, stackedOver
      // should also be NaN, to draw a appropriate belt area.
      if (isNaN(sum)) {
        return resultNaN;
      }
      var byValue;
      var stackedDataRawIndex;
      if (isStackedByIndex) {
        stackedDataRawIndex = targetData.getRawIndex(dataIndex);
      } else {
        byValue = targetData.get(targetStackInfo.stackedByDimension, dataIndex);
      }
      // If stackOver is NaN, chart view will render point on value start.
      var stackedOver = NaN;
      for (var j = idxInStack - 1; j >= 0; j--) {
        var stackInfo = stackInfoList[j];
        // Has been optimized by inverted indices on `stackedByDimension`.
        if (!isStackedByIndex) {
          stackedDataRawIndex = stackInfo.data.rawIndexOf(stackInfo.stackedByDimension, byValue);
        }
        if (stackedDataRawIndex >= 0) {
          var val = stackInfo.data.getByRawIndex(stackInfo.stackResultDimension, stackedDataRawIndex);
          // Considering positive stack, negative stack and empty data
          if (stackStrategy === 'all' // single stack group
          || stackStrategy === 'positive' && val > 0 || stackStrategy === 'negative' && val < 0 || stackStrategy === 'samesign' && sum >= 0 && val > 0 // All positive stack
          || stackStrategy === 'samesign' && sum <= 0 && val < 0 // All negative stack
          ) {
            // The sum has to be very small to be affected by the
            // floating arithmetic problem. An incorrect result will probably
            // cause axis min/max to be filtered incorrectly.
            sum = addSafe(sum, val);
            stackedOver = val;
            break;
          }
        }
      }
      resultVal[0] = sum;
      resultVal[1] = stackedOver;
      return resultVal;
    });
  });
}
/* Injected with object hook! */

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

theme.categoryAxis.splitLine.show = false;
/* Injected with object hook! */

/**
 * Usage of query:
 * `chart.on('click', query, handler);`
 * The `query` can be:
 * + The component type query string, only `mainType` or `mainType.subType`,
 *   like: 'xAxis', 'series', 'xAxis.category' or 'series.line'.
 * + The component query object, like:
 *   `{seriesIndex: 2}`, `{seriesName: 'xx'}`, `{seriesId: 'some'}`,
 *   `{xAxisIndex: 2}`, `{xAxisName: 'xx'}`, `{xAxisId: 'some'}`.
 * + The data query object, like:
 *   `{dataIndex: 123}`, `{dataType: 'link'}`, `{name: 'some'}`.
 * + The other query object (cmponent customized query), like:
 *   `{element: 'some'}` (only available in custom series).
 *
 * Caveat: If a prop in the `query` object is `null/undefined`, it is the
 * same as there is no such prop in the `query` object.
 */
var ECEventProcessor = /** @class */function () {
  function ECEventProcessor() {}
  ECEventProcessor.prototype.normalizeQuery = function (query) {
    var cptQuery = {};
    var dataQuery = {};
    var otherQuery = {};
    // `query` is `mainType` or `mainType.subType` of component.
    if (isString(query)) {
      var condCptType = parseClassType(query);
      // `.main` and `.sub` may be ''.
      cptQuery.mainType = condCptType.main || null;
      cptQuery.subType = condCptType.sub || null;
    }
    // `query` is an object, convert to {mainType, index, name, id}.
    else {
      // `xxxIndex`, `xxxName`, `xxxId`, `name`, `dataIndex`, `dataType` is reserved,
      // can not be used in `compomentModel.filterForExposedEvent`.
      var suffixes_1 = ['Index', 'Name', 'Id'];
      var dataKeys_1 = {
        name: 1,
        dataIndex: 1,
        dataType: 1
      };
      each$4(query, function (val, key) {
        var reserved = false;
        for (var i = 0; i < suffixes_1.length; i++) {
          var propSuffix = suffixes_1[i];
          var suffixPos = key.lastIndexOf(propSuffix);
          if (suffixPos > 0 && suffixPos === key.length - propSuffix.length) {
            var mainType = key.slice(0, suffixPos);
            // Consider `dataIndex`.
            if (mainType !== 'data') {
              cptQuery.mainType = mainType;
              cptQuery[propSuffix.toLowerCase()] = val;
              reserved = true;
            }
          }
        }
        if (dataKeys_1.hasOwnProperty(key)) {
          dataQuery[key] = val;
          reserved = true;
        }
        if (!reserved) {
          otherQuery[key] = val;
        }
      });
    }
    return {
      cptQuery: cptQuery,
      dataQuery: dataQuery,
      otherQuery: otherQuery
    };
  };
  ECEventProcessor.prototype.filter = function (eventType, query) {
    // They should be assigned before each trigger call.
    var eventInfo = this.eventInfo;
    if (!eventInfo) {
      return true;
    }
    var targetEl = eventInfo.targetEl;
    var packedEvent = eventInfo.packedEvent;
    var model = eventInfo.model;
    var view = eventInfo.view;
    // For event like 'globalout'.
    if (!model || !view) {
      return true;
    }
    var cptQuery = query.cptQuery;
    var dataQuery = query.dataQuery;
    return check(cptQuery, model, 'mainType') && check(cptQuery, model, 'subType') && check(cptQuery, model, 'index', 'componentIndex') && check(cptQuery, model, 'name') && check(cptQuery, model, 'id') && check(dataQuery, packedEvent, 'name') && check(dataQuery, packedEvent, 'dataIndex') && check(dataQuery, packedEvent, 'dataType') && (!view.filterForExposedEvent || view.filterForExposedEvent(eventType, query.otherQuery, targetEl, packedEvent));
    function check(query, host, prop, propOnHost) {
      return query[prop] == null || host[propOnHost || prop] === query[prop];
    }
  };
  ECEventProcessor.prototype.afterTrigger = function () {
    // Make sure the eventInfo won't be used in next trigger.
    this.eventInfo = null;
  };
  return ECEventProcessor;
}();
/* Injected with object hook! */

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

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/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

var lifecycle = new Eventful();
/* Injected with object hook! */

var implsStore = {};
function registerImpl(name, impl) {
  implsStore[name] = impl;
}
function getImpl(name) {
  return implsStore[name];
}

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/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/**
 * Generate sub axis model class
 * @param axisName 'x' 'y' 'radius' 'angle' 'parallel' ...
 */
function axisModelCreator(registers, axisName, BaseAxisModelClass, extraDefaultOption) {
  each$4(AXIS_TYPES, function (v, axisType) {
    var defaultOption = merge(merge({}, axisDefault[axisType], true), extraDefaultOption, true);
    var AxisModel = /** @class */function (_super) {
      __extends(AxisModel, _super);
      function AxisModel() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.type = axisName + 'Axis.' + axisType;
        return _this;
      }
      AxisModel.prototype.mergeDefaultAndTheme = function (option, ecModel) {
        var layoutMode = fetchLayoutMode(this);
        var inputPositionParams = layoutMode ? getLayoutParams(option) : {};
        var themeModel = ecModel.getTheme();
        merge(option, themeModel.get(axisType + 'Axis'));
        merge(option, this.getDefaultOption());
        option.type = getAxisType(option);
        if (layoutMode) {
          mergeLayoutParam(option, inputPositionParams, layoutMode);
        }
      };
      AxisModel.prototype.optionUpdated = function () {
        var thisOption = this.option;
        if (thisOption.type === 'category') {
          this.__ordinalMeta = OrdinalMeta.createByAxisModel(this);
        }
      };
      /**
       * Should not be called before all of 'getInitailData' finished.
       * Because categories are collected during initializing data.
       */
      AxisModel.prototype.getCategories = function (rawData) {
        var option = this.option;
        // FIXME
        // warning if called before all of 'getInitailData' finished.
        if (option.type === 'category') {
          if (rawData) {
            return option.data;
          }
          return this.__ordinalMeta.categories;
        }
      };
      AxisModel.prototype.getOrdinalMeta = function () {
        return this.__ordinalMeta;
      };
      AxisModel.type = axisName + 'Axis.' + axisType;
      AxisModel.defaultOption = defaultOption;
      return AxisModel;
    }(BaseAxisModelClass);
    registers.registerComponentModel(AxisModel);
  });
  registers.registerSubTypeDefaulter(axisName + 'Axis', getAxisType);
}
function getAxisType(option) {
  // Default axis with data is category axis
  return option.type || (option.data ? 'category' : 'value');
}
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/**
 * Get axis scale extent before niced.
 * Item of returned array can only be number (including Infinity and NaN).
 *
 * Caution:
 * Precondition of calling this method:
 * The scale extent has been initialized using series data extent via
 * `scale.setExtent` or `scale.unionExtentFromData`;
 */
function getScaleExtent(scale, model) {
  var scaleType = scale.type;
  var rawExtentResult = ensureScaleRawExtentInfo(scale, model, scale.getExtent()).calculate();
  scale.setBlank(rawExtentResult.isBlank);
  var min = rawExtentResult.min;
  var max = rawExtentResult.max;
  // If bars are placed on a base axis of type time or interval account for axis boundary overflow and current axis
  // is base axis
  // FIXME
  // (1) Consider support value axis, where below zero and axis `onZero` should be handled properly.
  // (2) Refactor the logic with `barGrid`. Is it not need to `makeBarWidthAndOffsetInfo` twice with different extent?
  //     Should not depend on series type `bar`?
  // (3) Fix that might overlap when using dataZoom.
  // (4) Consider other chart types using `barGrid`?
  // See #6728, #4862, `test/bar-overflow-time-plot.html`
  var ecModel = model.ecModel;
  if (ecModel && scaleType === 'time' /* || scaleType === 'interval' */) {
    var barSeriesModels = prepareLayoutBarSeries('bar', ecModel);
    var isBaseAxisAndHasBarSeries_1 = false;
    each$4(barSeriesModels, function (seriesModel) {
      isBaseAxisAndHasBarSeries_1 = isBaseAxisAndHasBarSeries_1 || seriesModel.getBaseAxis() === model.axis;
    });
    if (isBaseAxisAndHasBarSeries_1) {
      // Calculate placement of bars on axis. TODO should be decoupled
      // with barLayout
      var barWidthAndOffset = makeColumnLayout(barSeriesModels);
      // Adjust axis min and max to account for overflow
      var adjustedScale = adjustScaleForOverflow(min, max, model, barWidthAndOffset);
      min = adjustedScale.min;
      max = adjustedScale.max;
    }
  }
  return {
    extent: [min, max],
    // "fix" means "fixed", the value should not be
    // changed in the subsequent steps.
    fixMin: rawExtentResult.minFixed,
    fixMax: rawExtentResult.maxFixed
  };
}
function adjustScaleForOverflow(min, max, model,
// Only support cartesian coord yet.
barWidthAndOffset) {
  // Get Axis Length
  var axisExtent = model.axis.getExtent();
  var axisLength = axisExtent[1] - axisExtent[0];
  // Get bars on current base axis and calculate min and max overflow
  var barsOnCurrentAxis = retrieveColumnLayout(barWidthAndOffset, model.axis);
  if (barsOnCurrentAxis === undefined) {
    return {
      min: min,
      max: max
    };
  }
  var minOverflow = Infinity;
  each$4(barsOnCurrentAxis, function (item) {
    minOverflow = Math.min(item.offset, minOverflow);
  });
  var maxOverflow = -Infinity;
  each$4(barsOnCurrentAxis, function (item) {
    maxOverflow = Math.max(item.offset + item.width, maxOverflow);
  });
  minOverflow = Math.abs(minOverflow);
  maxOverflow = Math.abs(maxOverflow);
  var totalOverFlow = minOverflow + maxOverflow;
  // Calculate required buffer based on old range and overflow
  var oldRange = max - min;
  var oldRangePercentOfNew = 1 - (minOverflow + maxOverflow) / axisLength;
  var overflowBuffer = oldRange / oldRangePercentOfNew - oldRange;
  max += overflowBuffer * (maxOverflow / totalOverFlow);
  min -= overflowBuffer * (minOverflow / totalOverFlow);
  return {
    min: min,
    max: max
  };
}
// Precondition of calling this method:
// The scale extent has been initialized using series data extent via
// `scale.setExtent` or `scale.unionExtentFromData`;
function niceScaleExtent(scale, inModel) {
  var model = inModel;
  var extentInfo = getScaleExtent(scale, model);
  var extent = extentInfo.extent;
  var splitNumber = model.get('splitNumber');
  if (scale instanceof LogScale) {
    scale.base = model.get('logBase');
  }
  var scaleType = scale.type;
  var interval = model.get('interval');
  var isIntervalOrTime = scaleType === 'interval' || scaleType === 'time';
  scale.setExtent(extent[0], extent[1]);
  scale.calcNiceExtent({
    splitNumber: splitNumber,
    fixMin: extentInfo.fixMin,
    fixMax: extentInfo.fixMax,
    minInterval: isIntervalOrTime ? model.get('minInterval') : null,
    maxInterval: isIntervalOrTime ? model.get('maxInterval') : null
  });
  // If some one specified the min, max. And the default calculated interval
  // is not good enough. He can specify the interval. It is often appeared
  // in angle axis with angle 0 - 360. Interval calculated in interval scale is hard
  // to be 60.
  // FIXME
  if (interval != null) {
    scale.setInterval && scale.setInterval(interval);
  }
}
/**
 * @param axisType Default retrieve from model.type
 */
function createScaleByModel(model, axisType) {
  axisType = axisType || model.get('type');
  if (axisType) {
    switch (axisType) {
      // Buildin scale
      case 'category':
        return new OrdinalScale({
          ordinalMeta: model.getOrdinalMeta ? model.getOrdinalMeta() : model.getCategories(),
          extent: [Infinity, -Infinity]
        });
      case 'time':
        return new TimeScale({
          locale: model.ecModel.getLocaleModel(),
          useUTC: model.ecModel.get('useUTC')
        });
      default:
        // case 'value'/'interval', 'log', or others.
        return new (Scale.getClass(axisType) || IntervalScale)();
    }
  }
}
/**
 * Check if the axis cross 0
 */
function ifAxisCrossZero(axis) {
  var dataExtent = axis.scale.getExtent();
  var min = dataExtent[0];
  var max = dataExtent[1];
  return !(min > 0 && max > 0 || min < 0 && max < 0);
}
/**
 * @param axis
 * @return Label formatter function.
 *         param: {number} tickValue,
 *         param: {number} idx, the index in all ticks.
 *                         If category axis, this param is not required.
 *         return: {string} label string.
 */
function makeLabelFormatter(axis) {
  var labelFormatter = axis.getLabelModel().get('formatter');
  var categoryTickStart = axis.type === 'category' ? axis.scale.getExtent()[0] : null;
  if (axis.scale.type === 'time') {
    return function (tpl) {
      return function (tick, idx) {
        return axis.scale.getFormattedLabel(tick, idx, tpl);
      };
    }(labelFormatter);
  } else if (isString(labelFormatter)) {
    return function (tpl) {
      return function (tick) {
        // For category axis, get raw value; for numeric axis,
        // get formatted label like '1,333,444'.
        var label = axis.scale.getLabel(tick);
        var text = tpl.replace('{value}', label != null ? label : '');
        return text;
      };
    }(labelFormatter);
  } else if (isFunction(labelFormatter)) {
    return function (cb) {
      return function (tick, idx) {
        // The original intention of `idx` is "the index of the tick in all ticks".
        // But the previous implementation of category axis do not consider the
        // `axisLabel.interval`, which cause that, for example, the `interval` is
        // `1`, then the ticks "name5", "name7", "name9" are displayed, where the
        // corresponding `idx` are `0`, `2`, `4`, but not `0`, `1`, `2`. So we keep
        // the definition here for back compatibility.
        if (categoryTickStart != null) {
          idx = tick.value - categoryTickStart;
        }
        return cb(getAxisRawValue(axis, tick), idx, tick.level != null ? {
          level: tick.level
        } : null);
      };
    }(labelFormatter);
  } else {
    return function (tick) {
      return axis.scale.getLabel(tick);
    };
  }
}
function getAxisRawValue(axis, tick) {
  // In category axis with data zoom, tick is not the original
  // index of axis.data. So tick should not be exposed to user
  // in category axis.
  return axis.type === 'category' ? axis.scale.getLabel(tick) : tick.value;
}
/**
 * @param axis
 * @return Be null/undefined if no labels.
 */
function estimateLabelUnionRect(axis) {
  var axisModel = axis.model;
  var scale = axis.scale;
  if (!axisModel.get(['axisLabel', 'show']) || scale.isBlank()) {
    return;
  }
  var realNumberScaleTicks;
  var tickCount;
  var categoryScaleExtent = scale.getExtent();
  // Optimize for large category data, avoid call `getTicks()`.
  if (scale instanceof OrdinalScale) {
    tickCount = scale.count();
  } else {
    realNumberScaleTicks = scale.getTicks();
    tickCount = realNumberScaleTicks.length;
  }
  var axisLabelModel = axis.getLabelModel();
  var labelFormatter = makeLabelFormatter(axis);
  var rect;
  var step = 1;
  // Simple optimization for large amount of labels
  if (tickCount > 40) {
    step = Math.ceil(tickCount / 40);
  }
  for (var i = 0; i < tickCount; i += step) {
    var tick = realNumberScaleTicks ? realNumberScaleTicks[i] : {
      value: categoryScaleExtent[0] + i
    };
    var label = labelFormatter(tick, i);
    var unrotatedSingleRect = axisLabelModel.getTextRect(label);
    var singleRect = rotateTextRect(unrotatedSingleRect, axisLabelModel.get('rotate') || 0);
    rect ? rect.union(singleRect) : rect = singleRect;
  }
  return rect;
}
function rotateTextRect(textRect, rotate) {
  var rotateRadians = rotate * Math.PI / 180;
  var beforeWidth = textRect.width;
  var beforeHeight = textRect.height;
  var afterWidth = beforeWidth * Math.abs(Math.cos(rotateRadians)) + Math.abs(beforeHeight * Math.sin(rotateRadians));
  var afterHeight = beforeWidth * Math.abs(Math.sin(rotateRadians)) + Math.abs(beforeHeight * Math.cos(rotateRadians));
  var rotatedRect = new BoundingRect(textRect.x, textRect.y, afterWidth, afterHeight);
  return rotatedRect;
}
/**
 * @param model axisLabelModel or axisTickModel
 * @return {number|String} Can be null|'auto'|number|function
 */
function getOptionCategoryInterval(model) {
  var interval = model.get('interval');
  return interval == null ? 'auto' : interval;
}
/**
 * Set `categoryInterval` as 0 implicitly indicates that
 * show all labels regardless of overlap.
 * @param {Object} axis axisModel.axis
 */
function shouldShowAllLabels(axis) {
  return axis.type === 'category' && getOptionCategoryInterval(axis.getLabelModel()) === 0;
}
function getDataDimensionsOnAxis(data, axisDim) {
  // Remove duplicated dat dimensions caused by `getStackedDimension`.
  var dataDimMap = {};
  // Currently `mapDimensionsAll` will contain stack result dimension ('__\0ecstackresult').
  // PENDING: is it reasonable? Do we need to remove the original dim from "coord dim" since
  // there has been stacked result dim?
  each$4(data.mapDimensionsAll(axisDim), function (dataDim) {
    // For example, the extent of the original dimension
    // is [0.1, 0.5], the extent of the `stackResultDimension`
    // is [7, 9], the final extent should NOT include [0.1, 0.5],
    // because there is no graphic corresponding to [0.1, 0.5].
    // See the case in `test/area-stack.html` `main1`, where area line
    // stack needs `yAxis` not start from 0.
    dataDimMap[getStackedDimension(data, dataDim)] = true;
  });
  return keys(dataDimMap);
}
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/* Injected with object hook! */

var axisNameAvailableWidth;
    if (isNameLocationCenter(nameLocation)) {
      labelLayout = AxisBuilder.innerTextLayout(opt.rotation, nameRotation != null ? nameRotation : opt.rotation,
      // Adapt to axis.
      nameDirection);
    } else {
      labelLayout = endTextLayout(opt.rotation, nameLocation, nameRotation || 0, extent);
      axisNameAvailableWidth = opt.axisNameAvailableWidth;
      if (axisNameAvailableWidth != null) {
        axisNameAvailableWidth = Math.abs(axisNameAvailableWidth / Math.sin(labelLayout.rotation));
        !isFinite(axisNameAvailableWidth) && (axisNameAvailableWidth = null);
      }
    }
    var textFont = textStyleModel.getFont();
    var truncateOpt = axisModel.get('nameTruncate', true) || {};
    var ellipsis = truncateOpt.ellipsis;
    var maxWidth = retrieve(opt.nameTruncateMaxWidth, truncateOpt.maxWidth, axisNameAvailableWidth);
    var textEl = new ZRText({
      x: pos[0],
      y: pos[1],
      rotation: labelLayout.rotation,
      silent: AxisBuilder.isLabelSilent(axisModel),
      style: createTextStyle(textStyleModel, {
        text: name,
        font: textFont,
        overflow: 'truncate',
        width: maxWidth,
        ellipsis: ellipsis,
        fill: textStyleModel.getTextColor() || axisModel.get(['axisLine', 'lineStyle', 'color']),
        align: textStyleModel.get('align') || labelLayout.textAlign,
        verticalAlign: textStyleModel.get('verticalAlign') || labelLayout.textVerticalAlign
      }),
      z2: 1
    });
    setTooltipConfig({
      el: textEl,
      componentModel: axisModel,
      itemName: name
    });
    textEl.__fullText = name;
    // Id for animation
    textEl.anid = 'name';
    if (axisModel.get('triggerEvent')) {
      var eventData = AxisBuilder.makeAxisEventDataBase(axisModel);
      eventData.targetType = 'axisName';
      eventData.name = name;
      getECData(textEl).eventData = eventData;
    }
    // FIXME
    transformGroup.add(textEl);
    textEl.updateTransform();
    group.add(textEl);
    textEl.decomposeTransform();
  }
};
function endTextLayout(rotation, textPosition, textRotate, extent) {
  var rotationDiff = remRadian(textRotate - rotation);
  var textAlign;
  var textVerticalAlign;
  var inverse = extent[0] > extent[1];
  var onLeft = textPosition === 'start' && !inverse || textPosition !== 'start' && inverse;
  if (isRadianAroundZero(rotationDiff - PI / 2)) {
    textVerticalAlign = onLeft ? 'bottom' : 'top';
    textAlign = 'center';
  } else if (isRadianAroundZero(rotationDiff - PI * 1.5)) {
    textVerticalAlign = onLeft ? 'top' : 'bottom';
    textAlign = 'center';
  } else {
    textVerticalAlign = 'middle';
    if (rotationDiff < PI * 1.5 && rotationDiff > PI / 2) {
      textAlign = onLeft ? 'left' : 'right';
    } else {
      textAlign = onLeft ? 'right' : 'left';
    }
  }
  return {
    rotation: rotationDiff,
    textAlign: textAlign,
    textVerticalAlign: textVerticalAlign
  };
}
function fixMinMaxLabelShow(axisModel, labelEls, tickEls) {
  if (shouldShowAllLabels(axisModel.axis)) {
    return;
  }
  // If min or max are user set, we need to check
  // If the tick on min(max) are overlap on their neighbour tick
  // If they are overlapped, we need to hide the min(max) tick label
  var showMinLabel = axisModel.get(['axisLabel', 'showMinLabel']);
  var showMaxLabel = axisModel.get(['axisLabel', 'showMaxLabel']);
  // FIXME
  // Have not consider onBand yet, where tick els is more than label els.
  labelEls = labelEls || [];
  tickEls = tickEls || [];
  var firstLabel = labelEls[0];
  var nextLabel = labelEls[1];
  var lastLabel = labelEls[labelEls.length - 1];
  var prevLabel = labelEls[labelEls.length - 2];
  var firstTick = tickEls[0];
  var nextTick = tickEls[1];
  var lastTick = tickEls[tickEls.length - 1];
  var prevTick = tickEls[tickEls.length - 2];
  if (showMinLabel === false) {
    ignoreEl(firstLabel);
    ignoreEl(firstTick);
  } else if (isTwoLabelOverlapped(firstLabel, nextLabel)) {
    if (showMinLabel) {
      ignoreEl(nextLabel);
      ignoreEl(nextTick);
    } else {
      ignoreEl(firstLabel);
      ignoreEl(firstTick);
    }
  }
  if (showMaxLabel === false) {
    ignoreEl(lastLabel);
    ignoreEl(lastTick);
  } else if (isTwoLabelOverlapped(prevLabel, lastLabel)) {
    if (showMaxLabel) {
      ignoreEl(prevLabel);
      ignoreEl(prevTick);
    } else {
      ignoreEl(lastLabel);
      ignoreEl(lastTick);
    }
  }
}
function ignoreEl(el) {
  el && (el.ignore = true);
}
function isTwoLabelOverlapped(current, next) {
  // current and next has the same rotation.
  var firstRect = current && current.getBoundingRect().clone();
  var nextRect = next && next.getBoundingRect().clone();
  if (!firstRect || !nextRect) {
    return;
  }
  // When checking intersect of two rotated labels, we use mRotationBack
  // to avoid that boundingRect is enlarge when using `boundingRect.applyTransform`.
  var mRotationBack = identity([]);
  rotate(mRotationBack, mRotationBack, -current.rotation);
  firstRect.applyTransform(mul([], mRotationBack, current.getLocalTransform()));
  nextRect.applyTransform(mul([], mRotationBack, next.getLocalTransform()));
  return firstRect.intersect(nextRect);
}
function isNameLocationCenter(nameLocation) {
  return nameLocation === 'middle' || nameLocation === 'center';
}
function createTicks(ticksCoords, tickTransform, tickEndCoord, tickLineStyle, anidPrefix) {
  var tickEls = [];
  var pt1 = [];
  var pt2 = [];
  for (var i = 0; i < ticksCoords.length; i++) {
    var tickCoord = ticksCoords[i].coord;
    pt1[0] = tickCoord;
    pt1[1] = 0;
    pt2[0] = tickCoord;
    pt2[1] = tickEndCoord;
    if (tickTransform) {
      applyTransform$1(pt1, pt1, tickTransform);
      applyTransform$1(pt2, pt2, tickTransform);
    }
    // Tick line, Not use group transform to have better line draw
    var tickEl = new Line({
      shape: {
        x1: pt1[0],
        y1: pt1[1],
        x2: pt2[0],
        y2: pt2[1]
      },
      style: tickLineStyle,
      z2: 2,
      autoBatch: true,
      silent: true
    });
    subPixelOptimizeLine(tickEl.shape, tickEl.style.lineWidth);
    tickEl.anid = anidPrefix + '_' + ticksCoords[i].tickValue;
    tickEls.push(tickEl);
  }
  return tickEls;
}
function buildAxisMajorTicks(group, transformGroup, axisModel, opt) {
  var axis = axisModel.axis;
  var tickModel = axisModel.getModel('axisTick');
  var shown = tickModel.get('show');
  if (shown === 'auto' && opt.handleAutoShown) {
    shown = opt.handleAutoShown('axisTick');
  }
  if (!shown || axis.scale.isBlank()) {
    return;
  }
  var lineStyleModel = tickModel.getModel('lineStyle');
  var tickEndCoord = opt.tickDirection * tickModel.get('length');
  var ticksCoords = axis.getTicksCoords();
  var ticksEls = createTicks(ticksCoords, transformGroup.transform, tickEndCoord, defaults(lineStyleModel.getLineStyle(), {
    stroke: axisModel.get(['axisLine', 'lineStyle', 'color'])
  }), 'ticks');
  for (var i = 0; i < ticksEls.length; i++) {
    group.add(ticksEls[i]);
  }
  return ticksEls;
}
function buildAxisMinorTicks(group, transformGroup, axisModel, tickDirection) {
  var axis = axisModel.axis;
  var minorTickModel = axisModel.getModel('minorTick');
  if (!minorTickModel.get('show') || axis.scale.isBlank()) {
    return;
  }
  var minorTicksCoords = axis.getMinorTicksCoords();
  if (!minorTicksCoords.length) {
    return;
  }
  var lineStyleModel = minorTickModel.getModel('lineStyle');
  var tickEndCoord = tickDirection * minorTickModel.get('length');
  var minorTickLineStyle = defaults(lineStyleModel.getLineStyle(), defaults(axisModel.getModel('axisTick').getLineStyle(), {
    stroke: axisModel.get(['axisLine', 'lineStyle', 'color'])
  }));
  for (var i = 0; i < minorTicksCoords.length; i++) {
    var minorTicksEls = createTicks(minorTicksCoords[i], transformGroup.transform, tickEndCoord, minorTickLineStyle, 'minorticks_' + i);
    for (var k = 0; k < minorTicksEls.length; k++) {
      group.add(minorTicksEls[k]);
    }
  }
}
function buildAxisLabel(group, transformGroup, axisModel, opt) {
  var axis = axisModel.axis;
  var show = retrieve(opt.axisLabelShow, axisModel.get(['axisLabel', 'show']));
  if (!show || axis.scale.isBlank()) {
    return;
  }
  var labelModel = axisModel.getModel('axisLabel');
  var labelMargin = labelModel.get('margin');
  var labels = axis.getViewLabels();
  // Special label rotate.
  var labelRotation = (retrieve(opt.labelRotate, labelModel.get('rotate')) || 0) * PI / 180;
  var labelLayout = AxisBuilder.innerTextLayout(opt.rotation, labelRotation, opt.labelDirection);
  var rawCategoryData = axisModel.getCategories && axisModel.getCategories(true);
  var labelEls = [];
  var silent = AxisBuilder.isLabelSilent(axisModel);
  var triggerEvent = axisModel.get('triggerEvent');
  each$4(labels, function (labelItem, index) {
    var tickValue = axis.scale.type === 'ordinal' ? axis.scale.getRawOrdinalNumber(labelItem.tickValue) : labelItem.tickValue;
    var formattedLabel = labelItem.formattedLabel;
    var rawLabel = labelItem.rawLabel;
    var itemLabelModel = labelModel;
    if (rawCategoryData && rawCategoryData[tickValue]) {
      var rawCategoryItem = rawCategoryData[tickValue];
      if (isObject$2(rawCategoryItem) && rawCategoryItem.textStyle) {
        itemLabelModel = new Model(rawCategoryItem.textStyle, labelModel, axisModel.ecModel);
      }
    }
    var textColor = itemLabelModel.getTextColor() || axisModel.get(['axisLine', 'lineStyle', 'color']);
    var tickCoord = axis.dataToCoord(tickValue);
    var align = itemLabelModel.getShallow('align', true) || labelLayout.textAlign;
    var alignMin = retrieve2(itemLabelModel.getShallow('alignMinLabel', true), align);
    var alignMax = retrieve2(itemLabelModel.getShallow('alignMaxLabel', true), align);
    var verticalAlign = itemLabelModel.getShallow('verticalAlign', true) || itemLabelModel.getShallow('baseline', true) || labelLayout.textVerticalAlign;
    var verticalAlignMin = retrieve2(itemLabelModel.getShallow('verticalAlignMinLabel', true), verticalAlign);
    var verticalAlignMax = retrieve2(itemLabelModel.getShallow('verticalAlignMaxLabel', true), verticalAlign);
    var textEl = new ZRText({
      x: tickCoord,
      y: opt.labelOffset + opt.labelDirection * labelMargin,
      rotation: labelLayout.rotation,
      silent: silent,
      z2: 10 + (labelItem.level || 0),
      style: createTextStyle(itemLabelModel, {
        text: formattedLabel,
        align: index === 0 ? alignMin : index === labels.length - 1 ? alignMax : align,
        verticalAlign: index === 0 ? verticalAlignMin : index === labels.length - 1 ? verticalAlignMax : verticalAlign,
        fill: isFunction(textColor) ? textColor(
        // (1) In category axis with data zoom, tick is not the original
        // index of axis.data. So tick should not be exposed to user
        // in category axis.
        // (2) Compatible with previous version, which always use formatted label as
        // input. But in interval scale the formatted label is like '223,445', which
        // maked user replace ','. So we modify it to return original val but remain
        // it as 'string' to avoid error in replacing.
        axis.type === 'category' ? rawLabel : axis.type === 'value' ? tickValue + '' : tickValue, index) : textColor
      })
    });
    textEl.anid = 'label_' + tickValue;
    // Pack data for mouse event
    if (triggerEvent) {
      var eventData = AxisBuilder.makeAxisEventDataBase(axisModel);
      eventData.targetType = 'axisLabel';
      eventData.value = rawLabel;
      eventData.tickIndex = index;
      if (axis.type === 'category') {
        eventData.dataIndex = tickValue;
      }
      getECData(textEl).eventData = eventData;
    }
    // FIXME
    transformGroup.add(textEl);
    textEl.updateTransform();
    labelEls.push(textEl);
    group.add(textEl);
    textEl.decomposeTransform();
  });
  return labelEls;
}
/* Injected with object hook! */

// Build axisPointerModel, mergin tooltip.axisPointer model for each axis.
// allAxesInfo should be updated when setOption performed.
function collect(ecModel, api) {
  var result = {
    /**
     * key: makeKey(axis.model)
     * value: {
     *      axis,
     *      coordSys,
     *      axisPointerModel,
     *      triggerTooltip,
     *      triggerEmphasis,
     *      involveSeries,
     *      snap,
     *      seriesModels,
     *      seriesDataCount
     * }
     */
    axesInfo: {},
    seriesInvolved: false,
    /**
     * key: makeKey(coordSys.model)
     * value: Object: key makeKey(axis.model), value: axisInfo
     */
    coordSysAxesInfo: {},
    coordSysMap: {}
  };
  collectAxesInfo(result, ecModel, api);
  // Check seriesInvolved for performance, in case too many series in some chart.
  result.seriesInvolved && collectSeriesInfo(result, ecModel);
  return result;
}
function collectAxesInfo(result, ecModel, api) {
  var globalTooltipModel = ecModel.getComponent('tooltip');
  var globalAxisPointerModel = ecModel.getComponent('axisPointer');
  // links can only be set on global.
  var linksOption = globalAxisPointerModel.get('link', true) || [];
  var linkGroups = [];
  // Collect axes info.
  each$4(api.getCoordinateSystems(), function (coordSys) {
    // Some coordinate system do not support axes, like geo.
    if (!coordSys.axisPointerEnabled) {
      return;
    }
    var coordSysKey = makeKey(coordSys.model);
    var axesInfoInCoordSys = result.coordSysAxesInfo[coordSysKey] = {};
    result.coordSysMap[coordSysKey] = coordSys;
    // Set tooltip (like 'cross') is a convenient way to show axisPointer
    // for user. So we enable setting tooltip on coordSys model.
    var coordSysModel = coordSys.model;
    var baseTooltipModel = coordSysModel.getModel('tooltip', globalTooltipModel);
    each$4(coordSys.getAxes(), curry$1(saveTooltipAxisInfo, false, null));
    // If axis tooltip used, choose tooltip axis for each coordSys.
    // Notice this case: coordSys is `grid` but not `cartesian2D` here.
    if (coordSys.getTooltipAxes && globalTooltipModel
    // If tooltip.showContent is set as false, tooltip will not
    // show but axisPointer will show as normal.
    && baseTooltipModel.get('show')) {
      // Compatible with previous logic. But series.tooltip.trigger: 'axis'
      // or series.data[n].tooltip.trigger: 'axis' are not support any more.
      var triggerAxis = baseTooltipModel.get('trigger') === 'axis';
      var cross = baseTooltipModel.get(['axisPointer', 'type']) === 'cross';
      var tooltipAxes = coordSys.getTooltipAxes(baseTooltipModel.get(['axisPointer', 'axis']));
      if (triggerAxis || cross) {
        each$4(tooltipAxes.baseAxes, curry$1(saveTooltipAxisInfo, cross ? 'cross' : true, triggerAxis));
      }
      if (cross) {
        each$4(tooltipAxes.otherAxes, curry$1(saveTooltipAxisInfo, 'cross', false));
      }
    }
    // fromTooltip: true | false | 'cross'
    // triggerTooltip: true | false | null
    function saveTooltipAxisInfo(fromTooltip, triggerTooltip, axis) {
      var axisPointerModel = axis.model.getModel('axisPointer', globalAxisPointerModel);
      var axisPointerShow = axisPointerModel.get('show');
      if (!axisPointerShow || axisPointerShow === 'auto' && !fromTooltip && !isHandleTrigger(axisPointerModel)) {
        return;
      }
      if (triggerTooltip == null) {
        triggerTooltip = axisPointerModel.get('triggerTooltip');
      }
      axisPointerModel = fromTooltip ? makeAxisPointerModel(axis, baseTooltipModel, globalAxisPointerModel, ecModel, fromTooltip, triggerTooltip) : axisPointerModel;
      var snap = axisPointerModel.get('snap');
      var triggerEmphasis = axisPointerModel.get('triggerEmphasis');
      var axisKey = makeKey(axis.model);
      var involveSeries = triggerTooltip || snap || axis.type === 'category';
      // If result.axesInfo[key] exist, override it (tooltip has higher priority).
      var axisInfo = result.axesInfo[axisKey] = {
        key: axisKey,
        axis: axis,
        coordSys: coordSys,
        axisPointerModel: axisPointerModel,
        triggerTooltip: triggerTooltip,
        triggerEmphasis: triggerEmphasis,
        involveSeries: involveSeries,
        snap: snap,
        useHandle: isHandleTrigger(axisPointerModel),
        seriesModels: [],
        linkGroup: null
      };
      axesInfoInCoordSys[axisKey] = axisInfo;
      result.seriesInvolved = result.seriesInvolved || involveSeries;
      var groupIndex = getLinkGroupIndex(linksOption, axis);
      if (groupIndex != null) {
        var linkGroup = linkGroups[groupIndex] || (linkGroups[groupIndex] = {
          axesInfo: {}
        });
        linkGroup.axesInfo[axisKey] = axisInfo;
        linkGroup.mapper = linksOption[groupIndex].mapper;
        axisInfo.linkGroup = linkGroup;
      }
    }
  });
}
function makeAxisPointerModel(axis, baseTooltipModel, globalAxisPointerModel, ecModel, fromTooltip, triggerTooltip) {
  var tooltipAxisPointerModel = baseTooltipModel.getModel('axisPointer');
  var fields = ['type', 'snap', 'lineStyle', 'shadowStyle', 'label', 'animation', 'animationDurationUpdate', 'animationEasingUpdate', 'z'];
  var volatileOption = {};
  each$4(fields, function (field) {
    volatileOption[field] = clone$2(tooltipAxisPointerModel.get(field));
  });
  // category axis do not auto snap, otherwise some tick that do not
  // has value can not be hovered. value/time/log axis default snap if
  // triggered from tooltip and trigger tooltip.
  volatileOption.snap = axis.type !== 'category' && !!triggerTooltip;
  // Compatible with previous behavior, tooltip axis does not show label by default.
  // Only these properties can be overridden from tooltip to axisPointer.
  if (tooltipAxisPointerModel.get('type') === 'cross') {
    volatileOption.type = 'line';
  }
  var labelOption = volatileOption.label || (volatileOption.label = {});
  // Follow the convention, do not show label when triggered by tooltip by default.
  labelOption.show == null && (labelOption.show = false);
  if (fromTooltip === 'cross') {
    // When 'cross', both axes show labels.
    var tooltipAxisPointerLabelShow = tooltipAxisPointerModel.get(['label', 'show']);
    labelOption.show = tooltipAxisPointerLabelShow != null ? tooltipAxisPointerLabelShow : true;
    // If triggerTooltip, this is a base axis, which should better not use cross style
    // (cross style is dashed by default)
    if (!triggerTooltip) {
      var crossStyle = volatileOption.lineStyle = tooltipAxisPointerModel.get('crossStyle');
      crossStyle && defaults(labelOption, crossStyle.textStyle);
    }
  }
  return axis.model.getModel('axisPointer', new Model(volatileOption, globalAxisPointerModel, ecModel));
}
function collectSeriesInfo(result, ecModel) {
  // Prepare data for axis trigger
  ecModel.eachSeries(function (seriesModel) {
    // Notice this case: this coordSys is `cartesian2D` but not `grid`.
    var coordSys = seriesModel.coordinateSystem;
    var seriesTooltipTrigger = seriesModel.get(['tooltip', 'trigger'], true);
    var seriesTooltipShow = seriesModel.get(['tooltip', 'show'], true);
    if (!coordSys || seriesTooltipTrigger === 'none' || seriesTooltipTrigger === false || seriesTooltipTrigger === 'item' || seriesTooltipShow === false || seriesModel.get(['axisPointer', 'show'], true) === false) {
      return;
    }
    each$4(result.coordSysAxesInfo[makeKey(coordSys.model)], function (axisInfo) {
      var axis = axisInfo.axis;
      if (coordSys.getAxis(axis.dim) === axis) {
        axisInfo.seriesModels.push(seriesModel);
        axisInfo.seriesDataCount == null && (axisInfo.seriesDataCount = 0);
        axisInfo.seriesDataCount += seriesModel.getData().count();
      }
    });
  });
}
/**
 * For example:
 * {
 *     axisPointer: {
 *         links: [{
 *             xAxisIndex: [2, 4],
 *             yAxisIndex: 'all'
 *         }, {
 *             xAxisId: ['a5', 'a7'],
 *             xAxisName: 'xxx'
 *         }]
 *     }
 * }
 */
function getLinkGroupIndex(linksOption, axis) {
  var axisModel = axis.model;
  var dim = axis.dim;
  for (var i = 0; i < linksOption.length; i++) {
    var linkOption = linksOption[i] || {};
    if (checkPropInLink(linkOption[dim + 'AxisId'], axisModel.id) || checkPropInLink(linkOption[dim + 'AxisIndex'], axisModel.componentIndex) || checkPropInLink(linkOption[dim + 'AxisName'], axisModel.name)) {
      return i;
    }
  }
}
function checkPropInLink(linkPropValue, axisPropValue) {
  return linkPropValue === 'all' || isArray(linkPropValue) && indexOf(linkPropValue, axisPropValue) >= 0 || linkPropValue === axisPropValue;
}
function fixValue(axisModel) {
  var axisInfo = getAxisInfo(axisModel);
  if (!axisInfo) {
    return;
  }
  var axisPointerModel = axisInfo.axisPointerModel;
  var scale = axisInfo.axis.scale;
  var option = axisPointerModel.option;
  var status = axisPointerModel.get('status');
  var value = axisPointerModel.get('value');
  // Parse init value for category and time axis.
  if (value != null) {
    value = scale.parse(value);
  }
  var useHandle = isHandleTrigger(axisPointerModel);
  // If `handle` used, `axisPointer` will always be displayed, so value
  // and status should be initialized.
  if (status == null) {
    option.status = useHandle ? 'show' : 'hide';
  }
  var extent = scale.getExtent().slice();
  extent[0] > extent[1] && extent.reverse();
  if (
  // Pick a value on axis when initializing.
  value == null
  // If both `handle` and `dataZoom` are used, value may be out of axis extent,
  // where we should re-pick a value to keep `handle` displaying normally.
  || value > extent[1]) {
    // Make handle displayed on the end of the axis when init, which looks better.
    value = extent[1];
  }
  if (value < extent[0]) {
    value = extent[0];
  }
  option.value = value;
  if (useHandle) {
    option.status = axisInfo.axis.scale.isBlank() ? 'hide' : 'show';
  }
}
function getAxisInfo(axisModel) {
  var coordSysAxesInfo = (axisModel.ecModel.getComponent('axisPointer') || {}).coordSysAxesInfo;
  return coordSysAxesInfo && coordSysAxesInfo.axesInfo[makeKey(axisModel)];
}
function getAxisPointerModel(axisModel) {
  var axisInfo = getAxisInfo(axisModel);
  return axisInfo && axisInfo.axisPointerModel;
}
function isHandleTrigger(axisPointerModel) {
  return !!axisPointerModel.get(['handle', 'show']);
}
/**
 * @param {module:echarts/model/Model} model
 * @return {string} unique key
 */
function makeKey(model) {
  return model.type + '||' + model.id;
}
/* Injected with object hook! */

/* Injected with object hook! */

// Grid view
var GridView = /** @class */function (_super) {
  __extends(GridView, _super);
  function GridView() {
    var _this = _super !== null && _super.apply(this, arguments) || this;
    _this.type = 'grid';
    return _this;
  }
  GridView.prototype.render = function (gridModel, ecModel) {
    this.group.removeAll();
    if (gridModel.get('show')) {
      this.group.add(new Rect({
        shape: gridModel.coordinateSystem.getRect(),
        style: defaults({
          fill: gridModel.get('backgroundColor')
        }, gridModel.getItemStyle()),
        silent: true,
        z2: -1
      }));
    }
  };
  GridView.type = 'grid';
  return GridView;
}(ComponentView);
var extraOption = {
  // gridIndex: 0,
  // gridId: '',
  offset: 0
};
function install$8(registers) {
  registers.registerComponentView(GridView);
  registers.registerComponentModel(GridModel);
  registers.registerCoordinateSystem('cartesian2d', Grid);
  axisModelCreator(registers, 'x', CartesianAxisModel, extraOption);
  axisModelCreator(registers, 'y', CartesianAxisModel, extraOption);
  registers.registerComponentView(CartesianXAxisView);
  registers.registerComponentView(CartesianYAxisView);
  registers.registerPreprocessor(function (option) {
    // Only create grid when need
    if (option.xAxis && option.yAxis && !option.grid) {
      option.grid = {};
    }
  });
}
/* Injected with object hook! */

/**
 * @param finder contains {seriesIndex, dataIndex, dataIndexInside}
 * @param ecModel
 * @return  {point: [x, y], el: ...} point Will not be null.
 */
function findPointFromSeries(finder, ecModel) {
  var point = [];
  var seriesIndex = finder.seriesIndex;
  var seriesModel;
  if (seriesIndex == null || !(seriesModel = ecModel.getSeriesByIndex(seriesIndex))) {
    return {
      point: []
    };
  }
  var data = seriesModel.getData();
  var dataIndex = queryDataIndex(data, finder);
  if (dataIndex == null || dataIndex < 0 || isArray(dataIndex)) {
    return {
      point: []
    };
  }
  var el = data.getItemGraphicEl(dataIndex);
  var coordSys = seriesModel.coordinateSystem;
  if (seriesModel.getTooltipPosition) {
    point = seriesModel.getTooltipPosition(dataIndex) || [];
  } else if (coordSys && coordSys.dataToPoint) {
    if (finder.isStacked) {
      var baseAxis = coordSys.getBaseAxis();
      var valueAxis = coordSys.getOtherAxis(baseAxis);
      var valueAxisDim = valueAxis.dim;
      var baseAxisDim = baseAxis.dim;
      var baseDataOffset = valueAxisDim === 'x' || valueAxisDim === 'radius' ? 1 : 0;
      var baseDim = data.mapDimension(baseAxisDim);
      var stackedData = [];
      stackedData[baseDataOffset] = data.get(baseDim, dataIndex);
      stackedData[1 - baseDataOffset] = data.get(data.getCalculationInfo('stackResultDimension'), dataIndex);
      point = coordSys.dataToPoint(stackedData) || [];
    } else {
      point = coordSys.dataToPoint(data.getValues(map$1(coordSys.dimensions, function (dim) {
        return data.mapDimension(dim);
      }), dataIndex)) || [];
    }
  } else if (el) {
    // Use graphic bounding rect
    var rect = el.getBoundingRect().clone();
    rect.applyTransform(el.transform);
    point = [rect.x + rect.width / 2, rect.y + rect.height / 2];
  }
  return {
    point: point,
    el: el
  };
}
/* Injected with object hook! */

function install$6(registers) {
  use(install$8);
  use(install$7);
}
/* Injected with object hook! */

textStyle: {
      color: '#666',
      fontSize: 14
    }
  };
  return TooltipModel;
}(ComponentModel);
/* Injected with object hook! */

/* global document */
function shouldTooltipConfine(tooltipModel) {
  var confineOption = tooltipModel.get('confine');
  return confineOption != null ? !!confineOption
  // In richText mode, the outside part can not be visible.
  : tooltipModel.get('renderMode') === 'richText';
}
function testStyle(styleProps) {
  if (!env.domSupported) {
    return;
  }
  var style = document.documentElement.style;
  for (var i = 0, len = styleProps.length; i < len; i++) {
    if (styleProps[i] in style) {
      return styleProps[i];
    }
  }
}
var TRANSFORM_VENDOR = testStyle(['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform']);
var TRANSITION_VENDOR = testStyle(['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']);
function toCSSVendorPrefix(styleVendor, styleProp) {
  if (!styleVendor) {
    return styleProp;
  }
  styleProp = toCamelCase(styleProp, true);
  var idx = styleVendor.indexOf(styleProp);
  styleVendor = idx === -1 ? styleProp : "-" + styleVendor.slice(0, idx) + "-" + styleProp;
  return styleVendor.toLowerCase();
}
function getComputedStyle$1(el, style) {
  var stl = el.currentStyle || document.defaultView && document.defaultView.getComputedStyle(el);
  return stl ? stl[style]  : null;
}
/* Injected with object hook! */

/* global document, window */
var CSS_TRANSITION_VENDOR = toCSSVendorPrefix(TRANSITION_VENDOR, 'transition');
var CSS_TRANSFORM_VENDOR = toCSSVendorPrefix(TRANSFORM_VENDOR, 'transform');
// eslint-disable-next-line
var gCssText = "position:absolute;display:block;border-style:solid;white-space:nowrap;z-index:9999999;" + (env.transform3dSupported ? 'will-change:transform;' : '');
function mirrorPos(pos) {
  pos = pos === 'left' ? 'right' : pos === 'right' ? 'left' : pos === 'top' ? 'bottom' : 'top';
  return pos;
}
function assembleArrow(tooltipModel, borderColor, arrowPosition) {
  if (!isString(arrowPosition) || arrowPosition === 'inside') {
    return '';
  }
  var backgroundColor = tooltipModel.get('backgroundColor');
  var borderWidth = tooltipModel.get('borderWidth');
  borderColor = convertToColorString(borderColor);
  var arrowPos = mirrorPos(arrowPosition);
  var arrowSize = Math.max(Math.round(borderWidth) * 1.5, 6);
  var positionStyle = '';
  var transformStyle = CSS_TRANSFORM_VENDOR + ':';
  var rotateDeg;
  if (indexOf(['left', 'right'], arrowPos) > -1) {
    positionStyle += 'top:50%';
    transformStyle += "translateY(-50%) rotate(" + (rotateDeg = arrowPos === 'left' ? -225 : -45) + "deg)";
  } else {
    positionStyle += 'left:50%';
    transformStyle += "translateX(-50%) rotate(" + (rotateDeg = arrowPos === 'top' ? 225 : 45) + "deg)";
  }
  var rotateRadian = rotateDeg * Math.PI / 180;
  var arrowWH = arrowSize + borderWidth;
  var rotatedWH = arrowWH * Math.abs(Math.cos(rotateRadian)) + arrowWH * Math.abs(Math.sin(rotateRadian));
  var arrowOffset = Math.round(((rotatedWH - Math.SQRT2 * borderWidth) / 2 + Math.SQRT2 * borderWidth - (rotatedWH - arrowWH) / 2) * 100) / 100;
  positionStyle += ";" + arrowPos + ":-" + arrowOffset + "px";
  var borderStyle = borderColor + " solid " + borderWidth + "px;";
  var styleCss = ["position:absolute;width:" + arrowSize + "px;height:" + arrowSize + "px;z-index:-1;", positionStyle + ";" + transformStyle + ";", "border-bottom:" + borderStyle, "border-right:" + borderStyle, "background-color:" + backgroundColor + ";"];
  return "<div style=\"" + styleCss.join('') + "\"></div>";
}
function assembleTransition(duration, onlyFade) {
  var transitionCurve = 'cubic-bezier(0.23,1,0.32,1)';
  var transitionOption = " " + duration / 2 + "s " + transitionCurve;
  var transitionText = "opacity" + transitionOption + ",visibility" + transitionOption;
  if (!onlyFade) {
    transitionOption = " " + duration + "s " + transitionCurve;
    transitionText += env.transformSupported ? "," + CSS_TRANSFORM_VENDOR + transitionOption : ",left" + transitionOption + ",top" + transitionOption;
  }
  return CSS_TRANSITION_VENDOR + ':' + transitionText;
}
function assembleTransform(x, y, toString) {
  // If using float on style, the final width of the dom might
  // keep changing slightly while mouse move. So `toFixed(0)` them.
  var x0 = x.toFixed(0) + 'px';
  var y0 = y.toFixed(0) + 'px';
  // not support transform, use `left` and `top` instead.
  if (!env.transformSupported) {
    return toString ? "top:" + y0 + ";left:" + x0 + ";" : [['top', y0], ['left', x0]];
  }
  // support transform
  var is3d = env.transform3dSupported;
  var translate = "translate" + (is3d ? '3d' : '') + "(" + x0 + "," + y0 + (is3d ? ',0' : '') + ")";
  return toString ? 'top:0;left:0;' + CSS_TRANSFORM_VENDOR + ':' + translate + ';' : [['top', 0], ['left', 0], [TRANSFORM_VENDOR, translate]];
}
/**
 * @param {Object} textStyle
 * @return {string}
 * @inner
 */
function assembleFont(textStyleModel) {
  var cssText = [];
  var fontSize = textStyleModel.get('fontSize');
  var color = textStyleModel.getTextColor();
  color && cssText.push('color:' + color);
  cssText.push('font:' + textStyleModel.getFont());
  fontSize
  // @ts-ignore, leave it to the tooltip refactor.
  && cssText.push('line-height:' + Math.round(fontSize * 3 / 2) + 'px');
  var shadowColor = textStyleModel.get('textShadowColor');
  var shadowBlur = textStyleModel.get('textShadowBlur') || 0;
  var shadowOffsetX = textStyleModel.get('textShadowOffsetX') || 0;
  var shadowOffsetY = textStyleModel.get('textShadowOffsetY') || 0;
  shadowColor && shadowBlur && cssText.push('text-shadow:' + shadowOffsetX + 'px ' + shadowOffsetY + 'px ' + shadowBlur + 'px ' + shadowColor);
  each$4(['decoration', 'align'], function (name) {
    var val = textStyleModel.get(name);
    val && cssText.push('text-' + name + ':' + val);
  });
  return cssText.join(';');
}
function assembleCssText(tooltipModel, enableTransition, onlyFade) {
  var cssText = [];
  var transitionDuration = tooltipModel.get('transitionDuration');
  var backgroundColor = tooltipModel.get('backgroundColor');
  var shadowBlur = tooltipModel.get('shadowBlur');
  var shadowColor = tooltipModel.get('shadowColor');
  var shadowOffsetX = tooltipModel.get('shadowOffsetX');
  var shadowOffsetY = tooltipModel.get('shadowOffsetY');
  var textStyleModel = tooltipModel.getModel('textStyle');
  var padding = getPaddingFromTooltipModel(tooltipModel, 'html');
  var boxShadow = shadowOffsetX + "px " + shadowOffsetY + "px " + shadowBlur + "px " + shadowColor;
  cssText.push('box-shadow:' + boxShadow);
  // Animation transition. Do not animate when transitionDuration is 0.
  enableTransition && transitionDuration && cssText.push(assembleTransition(transitionDuration, onlyFade));
  if (backgroundColor) {
    cssText.push('background-color:' + backgroundColor);
  }
  // Border style
  each$4(['width', 'color', 'radius'], function (name) {
    var borderName = 'border-' + name;
    var camelCase = toCamelCase(borderName);
    var val = tooltipModel.get(camelCase);
    val != null && cssText.push(borderName + ':' + val + (name === 'color' ? '' : 'px'));
  });
  // Text style
  cssText.push(assembleFont(textStyleModel));
  // Padding
  if (padding != null) {
    cssText.push('padding:' + normalizeCssArray(padding).join('px ') + 'px');
  }
  return cssText.join(';') + ';';
}
// If not able to make, do not modify the input `out`.
function makeStyleCoord$1(out, zr, container, zrX, zrY) {
  var zrPainter = zr && zr.painter;
  if (container) {
    var zrViewportRoot = zrPainter && zrPainter.getViewportRoot();
    if (zrViewportRoot) {
      // Some APPs might use scale on body, so we support CSS transform here.
      transformLocalCoord(out, zrViewportRoot, container, zrX, zrY);
    }
  } else {
    out[0] = zrX;
    out[1] = zrY;
    // xy should be based on canvas root. But tooltipContent is
    // the sibling of canvas root. So padding of ec container
    // should be considered here.
    var viewportRootOffset = zrPainter && zrPainter.getViewportRootOffset();
    if (viewportRootOffset) {
      out[0] += viewportRootOffset.offsetLeft;
      out[1] += viewportRootOffset.offsetTop;
    }
  }
  out[2] = out[0] / zr.getWidth();
  out[3] = out[1] / zr.getHeight();
}
var TooltipHTMLContent = /** @class */function () {
  function TooltipHTMLContent(api, opt) {
    this._show = false;
    this._styleCoord = [0, 0, 0, 0];
    this._enterable = true;
    this._alwaysShowContent = false;
    this._firstShow = true;
    this._longHide = true;
    if (env.wxa) {
      return null;
    }
    var el = document.createElement('div');
    // TODO: TYPE
    el.domBelongToZr = true;
    this.el = el;
    var zr = this._zr = api.getZr();
    var appendTo = opt.appendTo;
    var container = appendTo && (isString(appendTo) ? document.querySelector(appendTo) : isDom(appendTo) ? appendTo : isFunction(appendTo) && appendTo(api.getDom()));
    makeStyleCoord$1(this._styleCoord, zr, container, api.getWidth() / 2, api.getHeight() / 2);
    (container || api.getDom()).appendChild(el);
    this._api = api;
    this._container = container;
    // FIXME
    // Is it needed to trigger zr event manually if
    // the browser do not support `pointer-events: none`.
    var self = this;
    el.onmouseenter = function () {
      // clear the timeout in hideLater and keep showing tooltip
      if (self._enterable) {
        clearTimeout(self._hideTimeout);
        self._show = true;
      }
      self._inContent = true;
    };
    el.onmousemove = function (e) {
      e = e || window.event;
      if (!self._enterable) {
        // `pointer-events: none` is set to tooltip content div
        // if `enterable` is set as `false`, and `el.onmousemove`
        // can not be triggered. But in browser that do not
        // support `pointer-events`, we need to do this:
        // Try trigger zrender event to avoid mouse
        // in and out shape too frequently
        var handler = zr.handler;
        var zrViewportRoot = zr.painter.getViewportRoot();
        normalizeEvent(zrViewportRoot, e, true);
        handler.dispatch('mousemove', e);
      }
    };
    el.onmouseleave = function () {
      // set `_inContent` to `false` before `hideLater`
      self._inContent = false;
      if (self._enterable) {
        if (self._show) {
          self.hideLater(self._hideDelay);
        }
      }
    };
  }
  /**
   * Update when tooltip is rendered
   */
  TooltipHTMLContent.prototype.update = function (tooltipModel) {
    // FIXME
    // Move this logic to ec main?
    if (!this._container) {
      var container = this._api.getDom();
      var position = getComputedStyle$1(container, 'position');
      var domStyle = container.style;
      if (domStyle.position !== 'absolute' && position !== 'absolute') {
        domStyle.position = 'relative';
      }
    }
    // move tooltip if chart resized
    var alwaysShowContent = tooltipModel.get('alwaysShowContent');
    alwaysShowContent && this._moveIfResized();
    // update alwaysShowContent
    this._alwaysShowContent = alwaysShowContent;
    // update className
    this.el.className = tooltipModel.get('className') || '';
    // Hide the tooltip
    // PENDING
    // this.hide();
  };

TooltipHTMLContent.prototype.show = function (tooltipModel, nearPointColor) {
    clearTimeout(this._hideTimeout);
    clearTimeout(this._longHideTimeout);
    var el = this.el;
    var style = el.style;
    var styleCoord = this._styleCoord;
    if (!el.innerHTML) {
      style.display = 'none';
    } else {
      style.cssText = gCssText + assembleCssText(tooltipModel, !this._firstShow, this._longHide)
      // initial transform
      + assembleTransform(styleCoord[0], styleCoord[1], true) + ("border-color:" + convertToColorString(nearPointColor) + ";") + (tooltipModel.get('extraCssText') || '')
      // If mouse occasionally move over the tooltip, a mouseout event will be
      // triggered by canvas, and cause some unexpectable result like dragging
      // stop, "unfocusAdjacency". Here `pointer-events: none` is used to solve
      // it. Although it is not supported by IE8~IE10, fortunately it is a rare
      // scenario.
      + (";pointer-events:" + (this._enterable ? 'auto' : 'none'));
    }
    this._show = true;
    this._firstShow = false;
    this._longHide = false;
  };
  TooltipHTMLContent.prototype.setContent = function (content, markers, tooltipModel, borderColor, arrowPosition) {
    var el = this.el;
    if (content == null) {
      el.innerHTML = '';
      return;
    }
    var arrow = '';
    if (isString(arrowPosition) && tooltipModel.get('trigger') === 'item' && !shouldTooltipConfine(tooltipModel)) {
      arrow = assembleArrow(tooltipModel, borderColor, arrowPosition);
    }
    if (isString(content)) {
      el.innerHTML = content + arrow;
    } else if (content) {
      // Clear previous
      el.innerHTML = '';
      if (!isArray(content)) {
        content = [content];
      }
      for (var i = 0; i < content.length; i++) {
        if (isDom(content[i]) && content[i].parentNode !== el) {
          el.appendChild(content[i]);
        }
      }
      // no arrow if empty
      if (arrow && el.childNodes.length) {
        // no need to create a new parent element, but it's not supported by IE 10 and older.
        // const arrowEl = document.createRange().createContextualFragment(arrow);
        var arrowEl = document.createElement('div');
        arrowEl.innerHTML = arrow;
        el.appendChild(arrowEl);
      }
    }
  };
  TooltipHTMLContent.prototype.setEnterable = function (enterable) {
    this._enterable = enterable;
  };
  TooltipHTMLContent.prototype.getSize = function () {
    var el = this.el;
    return [el.offsetWidth, el.offsetHeight];
  };
  TooltipHTMLContent.prototype.moveTo = function (zrX, zrY) {
    var styleCoord = this._styleCoord;
    makeStyleCoord$1(styleCoord, this._zr, this._container, zrX, zrY);
    if (styleCoord[0] != null && styleCoord[1] != null) {
      var style_1 = this.el.style;
      var transforms = assembleTransform(styleCoord[0], styleCoord[1]);
      each$4(transforms, function (transform) {
        style_1[transform[0]] = transform[1];
      });
    }
  };
  /**
   * when `alwaysShowContent` is true,
   * move the tooltip after chart resized
   */
  TooltipHTMLContent.prototype._moveIfResized = function () {
    // The ratio of left to width
    var ratioX = this._styleCoord[2];
    // The ratio of top to height
    var ratioY = this._styleCoord[3];
    this.moveTo(ratioX * this._zr.getWidth(), ratioY * this._zr.getHeight());
  };
  TooltipHTMLContent.prototype.hide = function () {
    var _this = this;
    var style = this.el.style;
    style.visibility = 'hidden';
    style.opacity = '0';
    env.transform3dSupported && (style.willChange = '');
    this._show = false;
    this._longHideTimeout = setTimeout(function () {
      return _this._longHide = true;
    }, 500);
  };
  TooltipHTMLContent.prototype.hideLater = function (time) {
    if (this._show && !(this._inContent && this._enterable) && !this._alwaysShowContent) {
      if (time) {
        this._hideDelay = time;
        // Set show false to avoid invoke hideLater multiple times
        this._show = false;
        this._hideTimeout = setTimeout(bind$1(this.hide, this), time);
      } else {
        this.hide();
      }
    }
  };
  TooltipHTMLContent.prototype.isShow = function () {
    return this._show;
  };
  TooltipHTMLContent.prototype.dispose = function () {
    clearTimeout(this._hideTimeout);
    clearTimeout(this._longHideTimeout);
    var parentNode = this.el.parentNode;
    parentNode && parentNode.removeChild(this.el);
    this.el = this._container = null;
  };
  return TooltipHTMLContent;
}();
/* Injected with object hook! */

/* Injected with object hook! */

TooltipView.prototype._showSeriesItemTooltip = function (e, dispatcher, dispatchAction) {
    var ecModel = this._ecModel;
    var ecData = getECData(dispatcher);
    // Use dataModel in element if possible
    // Used when mouseover on a element like markPoint or edge
    // In which case, the data is not main data in series.
    var seriesIndex = ecData.seriesIndex;
    var seriesModel = ecModel.getSeriesByIndex(seriesIndex);
    // For example, graph link.
    var dataModel = ecData.dataModel || seriesModel;
    var dataIndex = ecData.dataIndex;
    var dataType = ecData.dataType;
    var data = dataModel.getData(dataType);
    var renderMode = this._renderMode;
    var positionDefault = e.positionDefault;
    var tooltipModel = buildTooltipModel([data.getItemModel(dataIndex), dataModel, seriesModel && (seriesModel.coordinateSystem || {}).model], this._tooltipModel, positionDefault ? {
      position: positionDefault
    } : null);
    var tooltipTrigger = tooltipModel.get('trigger');
    if (tooltipTrigger != null && tooltipTrigger !== 'item') {
      return;
    }
    var params = dataModel.getDataParams(dataIndex, dataType);
    var markupStyleCreator = new TooltipMarkupStyleCreator();
    // Pre-create marker style for makers. Users can assemble richText
    // text in `formatter` callback and use those markers style.
    params.marker = markupStyleCreator.makeTooltipMarker('item', convertToColorString(params.color), renderMode);
    var seriesTooltipResult = normalizeTooltipFormatResult(dataModel.formatTooltip(dataIndex, false, dataType));
    var orderMode = tooltipModel.get('order');
    var valueFormatter = tooltipModel.get('valueFormatter');
    var frag = seriesTooltipResult.frag;
    var markupText = frag ? buildTooltipMarkup(valueFormatter ? extend({
      valueFormatter: valueFormatter
    }, frag) : frag, markupStyleCreator, renderMode, orderMode, ecModel.get('useUTC'), tooltipModel.get('textStyle')) : seriesTooltipResult.text;
    var asyncTicket = 'item_' + dataModel.name + '_' + dataIndex;
    this._showOrMove(tooltipModel, function () {
      this._showTooltipContent(tooltipModel, markupText, params, asyncTicket, e.offsetX, e.offsetY, e.position, e.target, markupStyleCreator);
    });
    // FIXME
    // duplicated showtip if manuallyShowTip is called from dispatchAction.
    dispatchAction({
      type: 'showTip',
      dataIndexInside: dataIndex,
      dataIndex: data.getRawIndex(dataIndex),
      seriesIndex: seriesIndex,
      from: this.uid
    });
  };
  TooltipView.prototype._showComponentItemTooltip = function (e, el, dispatchAction) {
    var isHTMLRenderMode = this._renderMode === 'html';
    var ecData = getECData(el);
    var tooltipConfig = ecData.tooltipConfig;
    var tooltipOpt = tooltipConfig.option || {};
    var encodeHTMLContent = tooltipOpt.encodeHTMLContent;
    if (isString(tooltipOpt)) {
      var content = tooltipOpt;
      tooltipOpt = {
        content: content,
        // Fixed formatter
        formatter: content
      };
      // when `tooltipConfig.option` is a string rather than an object,
      // we can't know if the content needs to be encoded
      // for the sake of security, encode it by default.
      encodeHTMLContent = true;
    }
    if (encodeHTMLContent && isHTMLRenderMode && tooltipOpt.content) {
      // clone might be unnecessary?
      tooltipOpt = clone$2(tooltipOpt);
      tooltipOpt.content = encodeHTML(tooltipOpt.content);
    }
    var tooltipModelCascade = [tooltipOpt];
    var cmpt = this._ecModel.getComponent(ecData.componentMainType, ecData.componentIndex);
    if (cmpt) {
      tooltipModelCascade.push(cmpt);
    }
    // In most cases, component tooltip formatter has different params with series tooltip formatter,
    // so that they cannot share the same formatter. Since the global tooltip formatter is used for series
    // by convention, we do not use it as the default formatter for component.
    tooltipModelCascade.push({
      formatter: tooltipOpt.content
    });
    var positionDefault = e.positionDefault;
    var subTooltipModel = buildTooltipModel(tooltipModelCascade, this._tooltipModel, positionDefault ? {
      position: positionDefault
    } : null);
    var defaultHtml = subTooltipModel.get('content');
    var asyncTicket = Math.random() + '';
    // PENDING: this case do not support richText style yet.
    var markupStyleCreator = new TooltipMarkupStyleCreator();
    // Do not check whether `trigger` is 'none' here, because `trigger`
    // only works on coordinate system. In fact, we have not found case
    // that requires setting `trigger` nothing on component yet.
    this._showOrMove(subTooltipModel, function () {
      // Use formatterParams from element defined in component
      // Avoid users modify it.
      var formatterParams = clone$2(subTooltipModel.get('formatterParams') || {});
      this._showTooltipContent(subTooltipModel, defaultHtml, formatterParams, asyncTicket, e.offsetX, e.offsetY, e.position, el, markupStyleCreator);
    });
    // If not dispatch showTip, tip may be hide triggered by axis.
    dispatchAction({
      type: 'showTip',
      from: this.uid
    });
  };
  TooltipView.prototype._showTooltipContent = function (
  // Use Model<TooltipOption> insteadof TooltipModel because this model may be from series or other options.
  // Instead of top level tooltip.
  tooltipModel, defaultHtml, params, asyncTicket, x, y, positionExpr, el, markupStyleCreator) {
    // Reset ticket
    this._ticket = '';
    if (!tooltipModel.get('showContent') || !tooltipModel.get('show')) {
      return;
    }
    var tooltipContent = this._tooltipContent;
    tooltipContent.setEnterable(tooltipModel.get('enterable'));
    var formatter = tooltipModel.get('formatter');
    positionExpr = positionExpr || tooltipModel.get('position');
    var html = defaultHtml;
    var nearPoint = this._getNearestPoint([x, y], params, tooltipModel.get('trigger'), tooltipModel.get('borderColor'));
    var nearPointColor = nearPoint.color;
    if (formatter) {
      if (isString(formatter)) {
        var useUTC = tooltipModel.ecModel.get('useUTC');
        var params0 = isArray(params) ? params[0] : params;
        var isTimeAxis = params0 && params0.axisType && params0.axisType.indexOf('time') >= 0;
        html = formatter;
        if (isTimeAxis) {
          html = format(params0.axisValue, html, useUTC);
        }
        html = formatTpl(html, params, true);
      } else if (isFunction(formatter)) {
        var callback = bind$1(function (cbTicket, html) {
          if (cbTicket === this._ticket) {
            tooltipContent.setContent(html, markupStyleCreator, tooltipModel, nearPointColor, positionExpr);
            this._updatePosition(tooltipModel, positionExpr, x, y, tooltipContent, params, el);
          }
        }, this);
        this._ticket = asyncTicket;
        html = formatter(params, asyncTicket, callback);
      } else {
        html = formatter;
      }
    }
    tooltipContent.setContent(html, markupStyleCreator, tooltipModel, nearPointColor, positionExpr);
    tooltipContent.show(tooltipModel, nearPointColor);
    this._updatePosition(tooltipModel, positionExpr, x, y, tooltipContent, params, el);
  };
  TooltipView.prototype._getNearestPoint = function (point, tooltipDataParams, trigger, borderColor) {
    if (trigger === 'axis' || isArray(tooltipDataParams)) {
      return {
        color: borderColor || (this._renderMode === 'html' ? '#fff' : 'none')
      };
    }
    if (!isArray(tooltipDataParams)) {
      return {
        color: borderColor || tooltipDataParams.color || tooltipDataParams.borderColor
      };
    }
  };
  TooltipView.prototype._updatePosition = function (tooltipModel, positionExpr, x,
  // Mouse x
  y,
  // Mouse y
  content, params, el) {
    var viewWidth = this._api.getWidth();
    var viewHeight = this._api.getHeight();
    positionExpr = positionExpr || tooltipModel.get('position');
    var contentSize = content.getSize();
    var align = tooltipModel.get('align');
    var vAlign = tooltipModel.get('verticalAlign');
    var rect = el && el.getBoundingRect().clone();
    el && rect.applyTransform(el.transform);
    if (isFunction(positionExpr)) {
      // Callback of position can be an array or a string specify the position
      positionExpr = positionExpr([x, y], params, content.el, rect, {
        viewSize: [viewWidth, viewHeight],
        contentSize: contentSize.slice()
      });
    }
    if (isArray(positionExpr)) {
      x = parsePercent(positionExpr[0], viewWidth);
      y = parsePercent(positionExpr[1], viewHeight);
    } else if (isObject$2(positionExpr)) {
      var boxLayoutPosition = positionExpr;
      boxLayoutPosition.width = contentSize[0];
      boxLayoutPosition.height = contentSize[1];
      var layoutRect = getLayoutRect(boxLayoutPosition, {
        width: viewWidth,
        height: viewHeight
      });
      x = layoutRect.x;
      y = layoutRect.y;
      align = null;
      // When positionExpr is left/top/right/bottom,
      // align and verticalAlign will not work.
      vAlign = null;
    }
    // Specify tooltip position by string 'top' 'bottom' 'left' 'right' around graphic element
    else if (isString(positionExpr) && el) {
      var pos = calcTooltipPosition(positionExpr, rect, contentSize, tooltipModel.get('borderWidth'));
      x = pos[0];
      y = pos[1];
    } else {
      var pos = refixTooltipPosition(x, y, content, viewWidth, viewHeight, align ? null : 20, vAlign ? null : 20);
      x = pos[0];
      y = pos[1];
    }
    align && (x -= isCenterAlign(align) ? contentSize[0] / 2 : align === 'right' ? contentSize[0] : 0);
    vAlign && (y -= isCenterAlign(vAlign) ? contentSize[1] / 2 : vAlign === 'bottom' ? contentSize[1] : 0);
    if (shouldTooltipConfine(tooltipModel)) {
      var pos = confineTooltipPosition(x, y, content, viewWidth, viewHeight);
      x = pos[0];
      y = pos[1];
    }
    content.moveTo(x, y);
  };
  // FIXME
  // Should we remove this but leave this to user?
  TooltipView.prototype._updateContentNotChangedOnAxis = function (dataByCoordSys, cbParamsList) {
    var lastCoordSys = this._lastDataByCoordSys;
    var lastCbParamsList = this._cbParamsList;
    var contentNotChanged = !!lastCoordSys && lastCoordSys.length === dataByCoordSys.length;
    contentNotChanged && each$4(lastCoordSys, function (lastItemCoordSys, indexCoordSys) {
      var lastDataByAxis = lastItemCoordSys.dataByAxis || [];
      var thisItemCoordSys = dataByCoordSys[indexCoordSys] || {};
      var thisDataByAxis = thisItemCoordSys.dataByAxis || [];
      contentNotChanged = contentNotChanged && lastDataByAxis.length === thisDataByAxis.length;
      contentNotChanged && each$4(lastDataByAxis, function (lastItem, indexAxis) {
        var thisItem = thisDataByAxis[indexAxis] || {};
        var lastIndices = lastItem.seriesDataIndices || [];
        var newIndices = thisItem.seriesDataIndices || [];
        contentNotChanged = contentNotChanged && lastItem.value === thisItem.value && lastItem.axisType === thisItem.axisType && lastItem.axisId === thisItem.axisId && lastIndices.length === newIndices.length;
        contentNotChanged && each$4(lastIndices, function (lastIdxItem, j) {
          var newIdxItem = newIndices[j];
          contentNotChanged = contentNotChanged && lastIdxItem.seriesIndex === newIdxItem.seriesIndex && lastIdxItem.dataIndex === newIdxItem.dataIndex;
        });
        // check is cbParams data value changed
        lastCbParamsList && each$4(lastItem.seriesDataIndices, function (idxItem) {
          var seriesIdx = idxItem.seriesIndex;
          var cbParams = cbParamsList[seriesIdx];
          var lastCbParams = lastCbParamsList[seriesIdx];
          if (cbParams && lastCbParams && lastCbParams.data !== cbParams.data) {
            contentNotChanged = false;
          }
        });
      });
    });
    this._lastDataByCoordSys = dataByCoordSys;
    this._cbParamsList = cbParamsList;
    return !!contentNotChanged;
  };
  TooltipView.prototype._hide = function (dispatchAction) {
    // Do not directly hideLater here, because this behavior may be prevented
    // in dispatchAction when showTip is dispatched.
    // FIXME
    // duplicated hideTip if manuallyHideTip is called from dispatchAction.
    this._lastDataByCoordSys = null;
    dispatchAction({
      type: 'hideTip',
      from: this.uid
    });
  };
  TooltipView.prototype.dispose = function (ecModel, api) {
    if (env.node || !api.getDom()) {
      return;
    }
    clear(this, '_updatePosition');
    this._tooltipContent.dispose();
    unregister('itemTooltip', api);
  };
  TooltipView.type = 'tooltip';
  return TooltipView;
}(ComponentView);
/**
 * From top to bottom. (the last one should be globalTooltipModel);
 */
function buildTooltipModel(modelCascade, globalTooltipModel, defaultTooltipOption) {
  // Last is always tooltip model.
  var ecModel = globalTooltipModel.ecModel;
  var resultModel;
  if (defaultTooltipOption) {
    resultModel = new Model(defaultTooltipOption, ecModel, ecModel);
    resultModel = new Model(globalTooltipModel.option, resultModel, ecModel);
  } else {
    resultModel = globalTooltipModel;
  }
  for (var i = modelCascade.length - 1; i >= 0; i--) {
    var tooltipOpt = modelCascade[i];
    if (tooltipOpt) {
      if (tooltipOpt instanceof Model) {
        tooltipOpt = tooltipOpt.get('tooltip', true);
      }
      // In each data item tooltip can be simply write:
      // {
      //  value: 10,
      //  tooltip: 'Something you need to know'
      // }
      if (isString(tooltipOpt)) {
        tooltipOpt = {
          formatter: tooltipOpt
        };
      }
      if (tooltipOpt) {
        resultModel = new Model(tooltipOpt, resultModel, ecModel);
      }
    }
  }
  return resultModel;
}
function makeDispatchAction(payload, api) {
  return payload.dispatchAction || bind$1(api.dispatchAction, api);
}
function refixTooltipPosition(x, y, content, viewWidth, viewHeight, gapH, gapV) {
  var size = content.getSize();
  var width = size[0];
  var height = size[1];
  if (gapH != null) {
    // Add extra 2 pixels for this case:
    // At present the "values" in default tooltip are using CSS `float: right`.
    // When the right edge of the tooltip box is on the right side of the
    // viewport, the `float` layout might push the "values" to the second line.
    if (x + width + gapH + 2 > viewWidth) {
      x -= width + gapH;
    } else {
      x += gapH;
    }
  }
  if (gapV != null) {
    if (y + height + gapV > viewHeight) {
      y -= height + gapV;
    } else {
      y += gapV;
    }
  }
  return [x, y];
}
function confineTooltipPosition(x, y, content, viewWidth, viewHeight) {
  var size = content.getSize();
  var width = size[0];
  var height = size[1];
  x = Math.min(x + width, viewWidth) - width;
  y = Math.min(y + height, viewHeight) - height;
  x = Math.max(x, 0);
  y = Math.max(y, 0);
  return [x, y];
}
function calcTooltipPosition(position, rect, contentSize, borderWidth) {
  var domWidth = contentSize[0];
  var domHeight = contentSize[1];
  var offset = Math.ceil(Math.SQRT2 * borderWidth) + 8;
  var x = 0;
  var y = 0;
  var rectWidth = rect.width;
  var rectHeight = rect.height;
  switch (position) {
    case 'inside':
      x = rect.x + rectWidth / 2 - domWidth / 2;
      y = rect.y + rectHeight / 2 - domHeight / 2;
      break;
    case 'top':
      x = rect.x + rectWidth / 2 - domWidth / 2;
      y = rect.y - domHeight - offset;
      break;
    case 'bottom':
      x = rect.x + rectWidth / 2 - domWidth / 2;
      y = rect.y + rectHeight + offset;
      break;
    case 'left':
      x = rect.x - domWidth - offset;
      y = rect.y + rectHeight / 2 - domHeight / 2;
      break;
    case 'right':
      x = rect.x + rectWidth + offset;
      y = rect.y + rectHeight / 2 - domHeight / 2;
  }
  return [x, y];
}
function isCenterAlign(align) {
  return align === 'center' || align === 'middle';
}
/**
 * Find target component by payload like:
 * ```js
 * { legendId: 'some_id', name: 'xxx' }
 * { toolboxIndex: 1, name: 'xxx' }
 * { geoName: 'some_name', name: 'xxx' }
 * ```
 * PENDING: at present only
 *
 * If not found, return null/undefined.
 */
function findComponentReference(payload, ecModel, api) {
  var queryOptionMap = preParseFinder(payload).queryOptionMap;
  var componentMainType = queryOptionMap.keys()[0];
  if (!componentMainType || componentMainType === 'series') {
    return;
  }
  var queryResult = queryReferringComponents(ecModel, componentMainType, queryOptionMap.get(componentMainType), {
    useDefault: false,
    enableAll: false,
    enableNone: false
  });
  var model = queryResult.models[0];
  if (!model) {
    return;
  }
  var view = api.getViewOfComponentModel(model);
  var el;
  view.group.traverse(function (subEl) {
    var tooltipConfig = getECData(subEl).tooltipConfig;
    if (tooltipConfig && tooltipConfig.name === payload.name) {
      el = subEl;
      return true; // stop
    }
  });

if (el) {
    return {
      componentMainType: componentMainType,
      componentIndex: model.componentIndex,
      el: el
    };
  }
}
/* Injected with object hook! */

/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

function install$3(registers) {
  registers.registerComponentModel(LegendModel);
  registers.registerComponentView(LegendView);
  registers.registerProcessor(registers.PRIORITY.PROCESSOR.SERIES_FILTER, legendFilter);
  registers.registerSubTypeDefaulter('legend', function () {
    return 'plain';
  });
  installLegendAction(registers);
}
/* Injected with object hook! */

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

function install$2(registers) {
  use(install$3);
  registers.registerComponentModel(ScrollableLegendModel);
  registers.registerComponentView(ScrollableLegendView);
  installScrollableLegendAction(registers);
}
/* Injected with object hook! */

function install$1(registers) {
  use(install$3);
  use(install$2);
}
/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

function install(registers) {
  registers.registerPainter('canvas', CanvasPainter);
}
/* Injected with object hook! */

document.head.appendChild(document.createElement('style')).textContent="x-vue-echarts{display:block;width:100%;height:100%;min-width:0}\n";

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* Injected with object hook! */

/* unplugin-vue-components disabled */const _sfc_main$1 = {};

function _sfc_render(_ctx, _cache) {
  return (openBlock(), createElementBlock("div", null, " Not Found "))
}
const __pages_import_3__ = /*#__PURE__*/_export_sfc(_sfc_main$1, [['render',_sfc_render]]);
/* Injected with object hook! */

const routes = [{"name":"index","path":"/","component":_sfc_main$a,"children":[{"name":"index-module","path":"module","component":_sfc_main$6,"props":true},{"name":"index-metric","path":"metric","component":_sfc_main$2,"props":true},{"name":"index-all","path":":all(.*)","component":__pages_import_3__,"props":true}],"props":true}];
/* Injected with object hook! */

/* Injected with object hook! */

const app = createApp(_sfc_main);
app.use(createRouter({
  history: createWebHashHistory(),
  routes
}));
app.mount("#app");

/* Injected with object hook! */

文件操作 - index-DL5ndA4F.js

文件: /var/www/OLD/node_modules/vite-plugin-inspect/dist/client/assets/index-DL5ndA4F.js

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