vue-zeye-client.esm.js

/*!
 * vue-zeye-client v0.5.27 
 * (c) 2020 stasoft91
 * Released under the ISC License.
 */
import jsCookie from 'js-cookie';
import protooClient from 'protoo-client';
import { Device, parseScalabilityMode } from 'mediasoup-client';
import axios from 'axios';
import hark from 'hark';

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

  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function (obj) {
      return typeof obj;
    };
  } else {
    _typeof = function (obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
  try {
    var info = gen[key](arg);
    var value = info.value;
  } catch (error) {
    reject(error);
    return;
  }

  if (info.done) {
    resolve(value);
  } else {
    Promise.resolve(value).then(_next, _throw);
  }
}

function _asyncToGenerator(fn) {
  return function () {
    var self = this,
        args = arguments;
    return new Promise(function (resolve, reject) {
      var gen = fn.apply(self, args);

      function _next(value) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
      }

      function _throw(err) {
        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
      }

      _next(undefined);
    });
  };
}

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

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

function ownKeys(object, enumerableOnly) {
  var keys = Object.keys(object);

  if (Object.getOwnPropertySymbols) {
    var symbols = Object.getOwnPropertySymbols(object);
    if (enumerableOnly) symbols = symbols.filter(function (sym) {
      return Object.getOwnPropertyDescriptor(object, sym).enumerable;
    });
    keys.push.apply(keys, symbols);
  }

  return keys;
}

function _objectSpread2(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i] != null ? arguments[i] : {};

    if (i % 2) {
      ownKeys(Object(source), true).forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    } else if (Object.getOwnPropertyDescriptors) {
      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
    } else {
      ownKeys(Object(source)).forEach(function (key) {
        Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
      });
    }
  }

  return target;
}

function _unsupportedIterableToArray(o, minLen) {
  if (!o) return;
  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
  var n = Object.prototype.toString.call(o).slice(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(o, minLen);
}

function _arrayLikeToArray(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 _createForOfIteratorHelper(o, allowArrayLike) {
  var it;

  if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) {
    if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
      if (it) o = it;
      var i = 0;

      var F = function () {};

      return {
        s: F,
        n: function () {
          if (i >= o.length) return {
            done: true
          };
          return {
            done: false,
            value: o[i++]
          };
        },
        e: function (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 () {
      it = o[Symbol.iterator]();
    },
    n: function () {
      var step = it.next();
      normalCompletion = step.done;
      return step;
    },
    e: function (e) {
      didErr = true;
      err = e;
    },
    f: function () {
      try {
        if (!normalCompletion && it.return != null) it.return();
      } finally {
        if (didErr) throw err;
      }
    }
  };
}

/*!
 * Vue.js v2.6.12
 * (c) 2014-2020 Evan You
 * Released under the MIT License.
 */

/*  */
var emptyObject = Object.freeze({}); // These helpers produce better VM code in JS engines due to their
// explicitness and function inlining.

function isUndef(v) {
  return v === undefined || v === null;
}

function isDef(v) {
  return v !== undefined && v !== null;
}

function isTrue(v) {
  return v === true;
}

function isFalse(v) {
  return v === false;
}
/**
 * Check if value is primitive.
 */


function isPrimitive(value) {
  return typeof value === 'string' || typeof value === 'number' || // $flow-disable-line
  _typeof(value) === 'symbol' || typeof value === 'boolean';
}
/**
 * Quick object check - this is primarily used to tell
 * Objects from primitive values when we know the value
 * is a JSON-compliant type.
 */


function isObject(obj) {
  return obj !== null && _typeof(obj) === 'object';
}
/**
 * Get the raw type string of a value, e.g., [object Object].
 */


var _toString = Object.prototype.toString;

function toRawType(value) {
  return _toString.call(value).slice(8, -1);
}
/**
 * Strict object type check. Only returns true
 * for plain JavaScript objects.
 */


function isPlainObject(obj) {
  return _toString.call(obj) === '[object Object]';
}

function isRegExp(v) {
  return _toString.call(v) === '[object RegExp]';
}
/**
 * Check if val is a valid array index.
 */


function isValidArrayIndex(val) {
  var n = parseFloat(String(val));
  return n >= 0 && Math.floor(n) === n && isFinite(val);
}

function isPromise(val) {
  return isDef(val) && typeof val.then === 'function' && typeof val.catch === 'function';
}
/**
 * Convert a value to a string that is actually rendered.
 */


function toString(val) {
  return val == null ? '' : Array.isArray(val) || isPlainObject(val) && val.toString === _toString ? JSON.stringify(val, null, 2) : String(val);
}
/**
 * Convert an input value to a number for persistence.
 * If the conversion fails, return original string.
 */


function toNumber(val) {
  var n = parseFloat(val);
  return isNaN(n) ? val : n;
}
/**
 * Make a map and return a function for checking if a key
 * is in that map.
 */


function makeMap(str, expectsLowerCase) {
  var map = Object.create(null);
  var list = str.split(',');

  for (var i = 0; i < list.length; i++) {
    map[list[i]] = true;
  }

  return expectsLowerCase ? function (val) {
    return map[val.toLowerCase()];
  } : function (val) {
    return map[val];
  };
}
/**
 * Check if a tag is a built-in tag.
 */


var isBuiltInTag = makeMap('slot,component', true);
/**
 * Check if an attribute is a reserved attribute.
 */

var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
/**
 * Remove an item from an array.
 */

function remove(arr, item) {
  if (arr.length) {
    var index = arr.indexOf(item);

    if (index > -1) {
      return arr.splice(index, 1);
    }
  }
}
/**
 * Check whether an object has the property.
 */


var hasOwnProperty = Object.prototype.hasOwnProperty;

function hasOwn(obj, key) {
  return hasOwnProperty.call(obj, key);
}
/**
 * Create a cached version of a pure function.
 */


function cached(fn) {
  var cache = Object.create(null);
  return function cachedFn(str) {
    var hit = cache[str];
    return hit || (cache[str] = fn(str));
  };
}
/**
 * Camelize a hyphen-delimited string.
 */


var camelizeRE = /-(\w)/g;
var camelize = cached(function (str) {
  return str.replace(camelizeRE, function (_, c) {
    return c ? c.toUpperCase() : '';
  });
});
/**
 * Capitalize a string.
 */

var capitalize = cached(function (str) {
  return str.charAt(0).toUpperCase() + str.slice(1);
});
/**
 * Hyphenate a camelCase string.
 */

var hyphenateRE = /\B([A-Z])/g;
var hyphenate = cached(function (str) {
  return str.replace(hyphenateRE, '-$1').toLowerCase();
});
/**
 * Simple bind polyfill for environments that do not support it,
 * e.g., PhantomJS 1.x. Technically, we don't need this anymore
 * since native bind is now performant enough in most browsers.
 * But removing it would mean breaking code that was able to run in
 * PhantomJS 1.x, so this must be kept for backward compatibility.
 */

/* istanbul ignore next */

function polyfillBind(fn, ctx) {
  function boundFn(a) {
    var l = arguments.length;
    return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx);
  }

  boundFn._length = fn.length;
  return boundFn;
}

function nativeBind(fn, ctx) {
  return fn.bind(ctx);
}

var bind = Function.prototype.bind ? nativeBind : polyfillBind;
/**
 * Convert an Array-like object to a real Array.
 */

function toArray(list, start) {
  start = start || 0;
  var i = list.length - start;
  var ret = new Array(i);

  while (i--) {
    ret[i] = list[i + start];
  }

  return ret;
}
/**
 * Mix properties into target object.
 */


function extend(to, _from) {
  for (var key in _from) {
    to[key] = _from[key];
  }

  return to;
}
/**
 * Merge an Array of Objects into a single Object.
 */


function toObject(arr) {
  var res = {};

  for (var i = 0; i < arr.length; i++) {
    if (arr[i]) {
      extend(res, arr[i]);
    }
  }

  return res;
}
/* eslint-disable no-unused-vars */

/**
 * Perform no operation.
 * Stubbing args to make Flow happy without leaving useless transpiled code
 * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
 */


function noop(a, b, c) {}
/**
 * Always return false.
 */


var no = function no(a, b, c) {
  return false;
};
/* eslint-enable no-unused-vars */

/**
 * Return the same value.
 */


var identity = function identity(_) {
  return _;
};
/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 */


function looseEqual(a, b) {
  if (a === b) {
    return true;
  }

  var isObjectA = isObject(a);
  var isObjectB = isObject(b);

  if (isObjectA && isObjectB) {
    try {
      var isArrayA = Array.isArray(a);
      var isArrayB = Array.isArray(b);

      if (isArrayA && isArrayB) {
        return a.length === b.length && a.every(function (e, i) {
          return looseEqual(e, b[i]);
        });
      } else if (a instanceof Date && b instanceof Date) {
        return a.getTime() === b.getTime();
      } else if (!isArrayA && !isArrayB) {
        var keysA = Object.keys(a);
        var keysB = Object.keys(b);
        return keysA.length === keysB.length && keysA.every(function (key) {
          return looseEqual(a[key], b[key]);
        });
      } else {
        /* istanbul ignore next */
        return false;
      }
    } catch (e) {
      /* istanbul ignore next */
      return false;
    }
  } else if (!isObjectA && !isObjectB) {
    return String(a) === String(b);
  } else {
    return false;
  }
}
/**
 * Return the first index at which a loosely equal value can be
 * found in the array (if value is a plain object, the array must
 * contain an object of the same shape), or -1 if it is not present.
 */


function looseIndexOf(arr, val) {
  for (var i = 0; i < arr.length; i++) {
    if (looseEqual(arr[i], val)) {
      return i;
    }
  }

  return -1;
}
/**
 * Ensure a function is called only once.
 */


function once(fn) {
  var called = false;
  return function () {
    if (!called) {
      called = true;
      fn.apply(this, arguments);
    }
  };
}

var SSR_ATTR = 'data-server-rendered';
var ASSET_TYPES = ['component', 'directive', 'filter'];
var LIFECYCLE_HOOKS = ['beforeCreate', 'created', 'beforeMount', 'mounted', 'beforeUpdate', 'updated', 'beforeDestroy', 'destroyed', 'activated', 'deactivated', 'errorCaptured', 'serverPrefetch'];
/*  */

var config = {
  /**
   * Option merge strategies (used in core/util/options)
   */
  // $flow-disable-line
  optionMergeStrategies: Object.create(null),

  /**
   * Whether to suppress warnings.
   */
  silent: false,

  /**
   * Show production mode tip message on boot?
   */
  productionTip: process.env.NODE_ENV !== 'production',

  /**
   * Whether to enable devtools
   */
  devtools: process.env.NODE_ENV !== 'production',

  /**
   * Whether to record perf
   */
  performance: false,

  /**
   * Error handler for watcher errors
   */
  errorHandler: null,

  /**
   * Warn handler for watcher warns
   */
  warnHandler: null,

  /**
   * Ignore certain custom elements
   */
  ignoredElements: [],

  /**
   * Custom user key aliases for v-on
   */
  // $flow-disable-line
  keyCodes: Object.create(null),

  /**
   * Check if a tag is reserved so that it cannot be registered as a
   * component. This is platform-dependent and may be overwritten.
   */
  isReservedTag: no,

  /**
   * Check if an attribute is reserved so that it cannot be used as a component
   * prop. This is platform-dependent and may be overwritten.
   */
  isReservedAttr: no,

  /**
   * Check if a tag is an unknown element.
   * Platform-dependent.
   */
  isUnknownElement: no,

  /**
   * Get the namespace of an element
   */
  getTagNamespace: noop,

  /**
   * Parse the real tag name for the specific platform.
   */
  parsePlatformTagName: identity,

  /**
   * Check if an attribute must be bound using property, e.g. value
   * Platform-dependent.
   */
  mustUseProp: no,

  /**
   * Perform updates asynchronously. Intended to be used by Vue Test Utils
   * This will significantly reduce performance if set to false.
   */
  async: true,

  /**
   * Exposed for legacy reasons
   */
  _lifecycleHooks: LIFECYCLE_HOOKS
};
/*  */

/**
 * unicode letters used for parsing html tags, component names and property paths.
 * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
 * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
 */

var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
/**
 * Check if a string starts with $ or _
 */

function isReserved(str) {
  var c = (str + '').charCodeAt(0);
  return c === 0x24 || c === 0x5F;
}
/**
 * Define a property.
 */


function def(obj, key, val, enumerable) {
  Object.defineProperty(obj, key, {
    value: val,
    enumerable: !!enumerable,
    writable: true,
    configurable: true
  });
}
/**
 * Parse simple path.
 */


var bailRE = new RegExp("[^" + unicodeRegExp.source + ".$_\\d]");

function parsePath(path) {
  if (bailRE.test(path)) {
    return;
  }

  var segments = path.split('.');
  return function (obj) {
    for (var i = 0; i < segments.length; i++) {
      if (!obj) {
        return;
      }

      obj = obj[segments[i]];
    }

    return obj;
  };
}
/*  */
// can we use __proto__?


var hasProto = ('__proto__' in {}); // Browser environment sniffing

var inBrowser = typeof window !== 'undefined';
var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
var UA = inBrowser && window.navigator.userAgent.toLowerCase();
var isIE = UA && /msie|trident/.test(UA);
var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
var isEdge = UA && UA.indexOf('edge/') > 0;
var isAndroid = UA && UA.indexOf('android') > 0 || weexPlatform === 'android';
var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA) || weexPlatform === 'ios';
var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
var isPhantomJS = UA && /phantomjs/.test(UA);
var isFF = UA && UA.match(/firefox\/(\d+)/); // Firefox has a "watch" function on Object.prototype...

var nativeWatch = {}.watch;
var supportsPassive = false;

if (inBrowser) {
  try {
    var opts = {};
    Object.defineProperty(opts, 'passive', {
      get: function get() {
        /* istanbul ignore next */
        supportsPassive = true;
      }
    }); // https://github.com/facebook/flow/issues/285

    window.addEventListener('test-passive', null, opts);
  } catch (e) {}
} // this needs to be lazy-evaled because vue may be required before
// vue-server-renderer can set VUE_ENV


var _isServer;

var isServerRendering = function isServerRendering() {
  if (_isServer === undefined) {
    /* istanbul ignore if */
    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
      // detect presence of vue-server-renderer and avoid
      // Webpack shimming the process
      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
    } else {
      _isServer = false;
    }
  }

  return _isServer;
}; // detect devtools


var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
/* istanbul ignore next */

function isNative(Ctor) {
  return typeof Ctor === 'function' && /native code/.test(Ctor.toString());
}

var hasSymbol = typeof Symbol !== 'undefined' && isNative(Symbol) && typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);

var _Set;
/* istanbul ignore if */
// $flow-disable-line


if (typeof Set !== 'undefined' && isNative(Set)) {
  // use native Set when available.
  _Set = Set;
} else {
  // a non-standard Set polyfill that only works with primitive keys.
  _Set = /*@__PURE__*/function () {
    function Set() {
      this.set = Object.create(null);
    }

    Set.prototype.has = function has(key) {
      return this.set[key] === true;
    };

    Set.prototype.add = function add(key) {
      this.set[key] = true;
    };

    Set.prototype.clear = function clear() {
      this.set = Object.create(null);
    };

    return Set;
  }();
}
/*  */


var warn = noop;
var tip = noop;
var generateComponentTrace = noop; // work around flow check

var formatComponentName = noop;

if (process.env.NODE_ENV !== 'production') {
  var hasConsole = typeof console !== 'undefined';
  var classifyRE = /(?:^|[-_])(\w)/g;

  var classify = function classify(str) {
    return str.replace(classifyRE, function (c) {
      return c.toUpperCase();
    }).replace(/[-_]/g, '');
  };

  warn = function warn(msg, vm) {
    var trace = vm ? generateComponentTrace(vm) : '';

    if (config.warnHandler) {
      config.warnHandler.call(null, msg, vm, trace);
    } else if (hasConsole && !config.silent) {
      console.error("[Vue warn]: " + msg + trace);
    }
  };

  tip = function tip(msg, vm) {
    if (hasConsole && !config.silent) {
      console.warn("[Vue tip]: " + msg + (vm ? generateComponentTrace(vm) : ''));
    }
  };

  formatComponentName = function formatComponentName(vm, includeFile) {
    if (vm.$root === vm) {
      return '<Root>';
    }

    var options = typeof vm === 'function' && vm.cid != null ? vm.options : vm._isVue ? vm.$options || vm.constructor.options : vm;
    var name = options.name || options._componentTag;
    var file = options.__file;

    if (!name && file) {
      var match = file.match(/([^/\\]+)\.vue$/);
      name = match && match[1];
    }

    return (name ? "<" + classify(name) + ">" : "<Anonymous>") + (file && includeFile !== false ? " at " + file : '');
  };

  var repeat = function repeat(str, n) {
    var res = '';

    while (n) {
      if (n % 2 === 1) {
        res += str;
      }

      if (n > 1) {
        str += str;
      }

      n >>= 1;
    }

    return res;
  };

  generateComponentTrace = function generateComponentTrace(vm) {
    if (vm._isVue && vm.$parent) {
      var tree = [];
      var currentRecursiveSequence = 0;

      while (vm) {
        if (tree.length > 0) {
          var last = tree[tree.length - 1];

          if (last.constructor === vm.constructor) {
            currentRecursiveSequence++;
            vm = vm.$parent;
            continue;
          } else if (currentRecursiveSequence > 0) {
            tree[tree.length - 1] = [last, currentRecursiveSequence];
            currentRecursiveSequence = 0;
          }
        }

        tree.push(vm);
        vm = vm.$parent;
      }

      return '\n\nfound in\n\n' + tree.map(function (vm, i) {
        return "" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm) ? formatComponentName(vm[0]) + "... (" + vm[1] + " recursive calls)" : formatComponentName(vm));
      }).join('\n');
    } else {
      return "\n\n(found in " + formatComponentName(vm) + ")";
    }
  };
}
/*  */


var uid = 0;
/**
 * A dep is an observable that can have multiple
 * directives subscribing to it.
 */

var Dep = function Dep() {
  this.id = uid++;
  this.subs = [];
};

Dep.prototype.addSub = function addSub(sub) {
  this.subs.push(sub);
};

Dep.prototype.removeSub = function removeSub(sub) {
  remove(this.subs, sub);
};

Dep.prototype.depend = function depend() {
  if (Dep.target) {
    Dep.target.addDep(this);
  }
};

Dep.prototype.notify = function notify() {
  // stabilize the subscriber list first
  var subs = this.subs.slice();

  if (process.env.NODE_ENV !== 'production' && !config.async) {
    // subs aren't sorted in scheduler if not running async
    // we need to sort them now to make sure they fire in correct
    // order
    subs.sort(function (a, b) {
      return a.id - b.id;
    });
  }

  for (var i = 0, l = subs.length; i < l; i++) {
    subs[i].update();
  }
}; // The current target watcher being evaluated.
// This is globally unique because only one watcher
// can be evaluated at a time.


Dep.target = null;
var targetStack = [];

function pushTarget(target) {
  targetStack.push(target);
  Dep.target = target;
}

function popTarget() {
  targetStack.pop();
  Dep.target = targetStack[targetStack.length - 1];
}
/*  */


var VNode = function VNode(tag, data, children, text, elm, context, componentOptions, asyncFactory) {
  this.tag = tag;
  this.data = data;
  this.children = children;
  this.text = text;
  this.elm = elm;
  this.ns = undefined;
  this.context = context;
  this.fnContext = undefined;
  this.fnOptions = undefined;
  this.fnScopeId = undefined;
  this.key = data && data.key;
  this.componentOptions = componentOptions;
  this.componentInstance = undefined;
  this.parent = undefined;
  this.raw = false;
  this.isStatic = false;
  this.isRootInsert = true;
  this.isComment = false;
  this.isCloned = false;
  this.isOnce = false;
  this.asyncFactory = asyncFactory;
  this.asyncMeta = undefined;
  this.isAsyncPlaceholder = false;
};

var prototypeAccessors = {
  child: {
    configurable: true
  }
}; // DEPRECATED: alias for componentInstance for backwards compat.

/* istanbul ignore next */

prototypeAccessors.child.get = function () {
  return this.componentInstance;
};

Object.defineProperties(VNode.prototype, prototypeAccessors);

var createEmptyVNode = function createEmptyVNode(text) {
  if (text === void 0) text = '';
  var node = new VNode();
  node.text = text;
  node.isComment = true;
  return node;
};

function createTextVNode(val) {
  return new VNode(undefined, undefined, undefined, String(val));
} // optimized shallow clone
// used for static nodes and slot nodes because they may be reused across
// multiple renders, cloning them avoids errors when DOM manipulations rely
// on their elm reference.


function cloneVNode(vnode) {
  var cloned = new VNode(vnode.tag, vnode.data, // #7975
  // clone children array to avoid mutating original in case of cloning
  // a child.
  vnode.children && vnode.children.slice(), vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);
  cloned.ns = vnode.ns;
  cloned.isStatic = vnode.isStatic;
  cloned.key = vnode.key;
  cloned.isComment = vnode.isComment;
  cloned.fnContext = vnode.fnContext;
  cloned.fnOptions = vnode.fnOptions;
  cloned.fnScopeId = vnode.fnScopeId;
  cloned.asyncMeta = vnode.asyncMeta;
  cloned.isCloned = true;
  return cloned;
}
/*
 * not type checking this file because flow doesn't play well with
 * dynamically accessing methods on Array prototype
 */


var arrayProto = Array.prototype;
var arrayMethods = Object.create(arrayProto);
var methodsToPatch = ['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'];
/**
 * Intercept mutating methods and emit events
 */

methodsToPatch.forEach(function (method) {
  // cache original method
  var original = arrayProto[method];
  def(arrayMethods, method, function mutator() {
    var args = [],
        len = arguments.length;

    while (len--) {
      args[len] = arguments[len];
    }

    var result = original.apply(this, args);
    var ob = this.__ob__;
    var inserted;

    switch (method) {
      case 'push':
      case 'unshift':
        inserted = args;
        break;

      case 'splice':
        inserted = args.slice(2);
        break;
    }

    if (inserted) {
      ob.observeArray(inserted);
    } // notify change


    ob.dep.notify();
    return result;
  });
});
/*  */

var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
/**
 * In some cases we may want to disable observation inside a component's
 * update computation.
 */

var shouldObserve = true;

function toggleObserving(value) {
  shouldObserve = value;
}
/**
 * Observer class that is attached to each observed
 * object. Once attached, the observer converts the target
 * object's property keys into getter/setters that
 * collect dependencies and dispatch updates.
 */


var Observer = function Observer(value) {
  this.value = value;
  this.dep = new Dep();
  this.vmCount = 0;
  def(value, '__ob__', this);

  if (Array.isArray(value)) {
    if (hasProto) {
      protoAugment(value, arrayMethods);
    } else {
      copyAugment(value, arrayMethods, arrayKeys);
    }

    this.observeArray(value);
  } else {
    this.walk(value);
  }
};
/**
 * Walk through all properties and convert them into
 * getter/setters. This method should only be called when
 * value type is Object.
 */


Observer.prototype.walk = function walk(obj) {
  var keys = Object.keys(obj);

  for (var i = 0; i < keys.length; i++) {
    defineReactive$$1(obj, keys[i]);
  }
};
/**
 * Observe a list of Array items.
 */


Observer.prototype.observeArray = function observeArray(items) {
  for (var i = 0, l = items.length; i < l; i++) {
    observe(items[i]);
  }
}; // helpers

/**
 * Augment a target Object or Array by intercepting
 * the prototype chain using __proto__
 */


function protoAugment(target, src) {
  /* eslint-disable no-proto */
  target.__proto__ = src;
  /* eslint-enable no-proto */
}
/**
 * Augment a target Object or Array by defining
 * hidden properties.
 */

/* istanbul ignore next */


function copyAugment(target, src, keys) {
  for (var i = 0, l = keys.length; i < l; i++) {
    var key = keys[i];
    def(target, key, src[key]);
  }
}
/**
 * Attempt to create an observer instance for a value,
 * returns the new observer if successfully observed,
 * or the existing observer if the value already has one.
 */


function observe(value, asRootData) {
  if (!isObject(value) || value instanceof VNode) {
    return;
  }

  var ob;

  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
    ob = value.__ob__;
  } else if (shouldObserve && !isServerRendering() && (Array.isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) {
    ob = new Observer(value);
  }

  if (asRootData && ob) {
    ob.vmCount++;
  }

  return ob;
}
/**
 * Define a reactive property on an Object.
 */


function defineReactive$$1(obj, key, val, customSetter, shallow) {
  var dep = new Dep();
  var property = Object.getOwnPropertyDescriptor(obj, key);

  if (property && property.configurable === false) {
    return;
  } // cater for pre-defined getter/setters


  var getter = property && property.get;
  var setter = property && property.set;

  if ((!getter || setter) && arguments.length === 2) {
    val = obj[key];
  }

  var childOb = !shallow && observe(val);
  Object.defineProperty(obj, key, {
    enumerable: true,
    configurable: true,
    get: function reactiveGetter() {
      var value = getter ? getter.call(obj) : val;

      if (Dep.target) {
        dep.depend();

        if (childOb) {
          childOb.dep.depend();

          if (Array.isArray(value)) {
            dependArray(value);
          }
        }
      }

      return value;
    },
    set: function reactiveSetter(newVal) {
      var value = getter ? getter.call(obj) : val;
      /* eslint-disable no-self-compare */

      if (newVal === value || newVal !== newVal && value !== value) {
        return;
      }
      /* eslint-enable no-self-compare */


      if (process.env.NODE_ENV !== 'production' && customSetter) {
        customSetter();
      } // #7981: for accessor properties without setter


      if (getter && !setter) {
        return;
      }

      if (setter) {
        setter.call(obj, newVal);
      } else {
        val = newVal;
      }

      childOb = !shallow && observe(newVal);
      dep.notify();
    }
  });
}
/**
 * Set a property on an object. Adds the new property and
 * triggers change notification if the property doesn't
 * already exist.
 */


function set(target, key, val) {
  if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {
    warn("Cannot set reactive property on undefined, null, or primitive value: " + target);
  }

  if (Array.isArray(target) && isValidArrayIndex(key)) {
    target.length = Math.max(target.length, key);
    target.splice(key, 1, val);
    return val;
  }

  if (key in target && !(key in Object.prototype)) {
    target[key] = val;
    return val;
  }

  var ob = target.__ob__;

  if (target._isVue || ob && ob.vmCount) {
    process.env.NODE_ENV !== 'production' && warn('Avoid adding reactive properties to a Vue instance or its root $data ' + 'at runtime - declare it upfront in the data option.');
    return val;
  }

  if (!ob) {
    target[key] = val;
    return val;
  }

  defineReactive$$1(ob.value, key, val);
  ob.dep.notify();
  return val;
}
/**
 * Delete a property and trigger change if necessary.
 */


function del(target, key) {
  if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {
    warn("Cannot delete reactive property on undefined, null, or primitive value: " + target);
  }

  if (Array.isArray(target) && isValidArrayIndex(key)) {
    target.splice(key, 1);
    return;
  }

  var ob = target.__ob__;

  if (target._isVue || ob && ob.vmCount) {
    process.env.NODE_ENV !== 'production' && warn('Avoid deleting properties on a Vue instance or its root $data ' + '- just set it to null.');
    return;
  }

  if (!hasOwn(target, key)) {
    return;
  }

  delete target[key];

  if (!ob) {
    return;
  }

  ob.dep.notify();
}
/**
 * Collect dependencies on array elements when the array is touched, since
 * we cannot intercept array element access like property getters.
 */


function dependArray(value) {
  for (var e = void 0, i = 0, l = value.length; i < l; i++) {
    e = value[i];
    e && e.__ob__ && e.__ob__.dep.depend();

    if (Array.isArray(e)) {
      dependArray(e);
    }
  }
}
/*  */

/**
 * Option overwriting strategies are functions that handle
 * how to merge a parent option value and a child option
 * value into the final value.
 */


var strats = config.optionMergeStrategies;
/**
 * Options with restrictions
 */

if (process.env.NODE_ENV !== 'production') {
  strats.el = strats.propsData = function (parent, child, vm, key) {
    if (!vm) {
      warn("option \"" + key + "\" can only be used during instance " + 'creation with the `new` keyword.');
    }

    return defaultStrat(parent, child);
  };
}
/**
 * Helper that recursively merges two data objects together.
 */


function mergeData(to, from) {
  if (!from) {
    return to;
  }

  var key, toVal, fromVal;
  var keys = hasSymbol ? Reflect.ownKeys(from) : Object.keys(from);

  for (var i = 0; i < keys.length; i++) {
    key = keys[i]; // in case the object is already observed...

    if (key === '__ob__') {
      continue;
    }

    toVal = to[key];
    fromVal = from[key];

    if (!hasOwn(to, key)) {
      set(to, key, fromVal);
    } else if (toVal !== fromVal && isPlainObject(toVal) && isPlainObject(fromVal)) {
      mergeData(toVal, fromVal);
    }
  }

  return to;
}
/**
 * Data
 */


function mergeDataOrFn(parentVal, childVal, vm) {
  if (!vm) {
    // in a Vue.extend merge, both should be functions
    if (!childVal) {
      return parentVal;
    }

    if (!parentVal) {
      return childVal;
    } // when parentVal & childVal are both present,
    // we need to return a function that returns the
    // merged result of both functions... no need to
    // check if parentVal is a function here because
    // it has to be a function to pass previous merges.


    return function mergedDataFn() {
      return mergeData(typeof childVal === 'function' ? childVal.call(this, this) : childVal, typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal);
    };
  } else {
    return function mergedInstanceDataFn() {
      // instance merge
      var instanceData = typeof childVal === 'function' ? childVal.call(vm, vm) : childVal;
      var defaultData = typeof parentVal === 'function' ? parentVal.call(vm, vm) : parentVal;

      if (instanceData) {
        return mergeData(instanceData, defaultData);
      } else {
        return defaultData;
      }
    };
  }
}

strats.data = function (parentVal, childVal, vm) {
  if (!vm) {
    if (childVal && typeof childVal !== 'function') {
      process.env.NODE_ENV !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);
      return parentVal;
    }

    return mergeDataOrFn(parentVal, childVal);
  }

  return mergeDataOrFn(parentVal, childVal, vm);
};
/**
 * Hooks and props are merged as arrays.
 */


function mergeHook(parentVal, childVal) {
  var res = childVal ? parentVal ? parentVal.concat(childVal) : Array.isArray(childVal) ? childVal : [childVal] : parentVal;
  return res ? dedupeHooks(res) : res;
}

function dedupeHooks(hooks) {
  var res = [];

  for (var i = 0; i < hooks.length; i++) {
    if (res.indexOf(hooks[i]) === -1) {
      res.push(hooks[i]);
    }
  }

  return res;
}

LIFECYCLE_HOOKS.forEach(function (hook) {
  strats[hook] = mergeHook;
});
/**
 * Assets
 *
 * When a vm is present (instance creation), we need to do
 * a three-way merge between constructor options, instance
 * options and parent options.
 */

function mergeAssets(parentVal, childVal, vm, key) {
  var res = Object.create(parentVal || null);

  if (childVal) {
    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
    return extend(res, childVal);
  } else {
    return res;
  }
}

ASSET_TYPES.forEach(function (type) {
  strats[type + 's'] = mergeAssets;
});
/**
 * Watchers.
 *
 * Watchers hashes should not overwrite one
 * another, so we merge them as arrays.
 */

strats.watch = function (parentVal, childVal, vm, key) {
  // work around Firefox's Object.prototype.watch...
  if (parentVal === nativeWatch) {
    parentVal = undefined;
  }

  if (childVal === nativeWatch) {
    childVal = undefined;
  }
  /* istanbul ignore if */


  if (!childVal) {
    return Object.create(parentVal || null);
  }

  if (process.env.NODE_ENV !== 'production') {
    assertObjectType(key, childVal, vm);
  }

  if (!parentVal) {
    return childVal;
  }

  var ret = {};
  extend(ret, parentVal);

  for (var key$1 in childVal) {
    var parent = ret[key$1];
    var child = childVal[key$1];

    if (parent && !Array.isArray(parent)) {
      parent = [parent];
    }

    ret[key$1] = parent ? parent.concat(child) : Array.isArray(child) ? child : [child];
  }

  return ret;
};
/**
 * Other object hashes.
 */


strats.props = strats.methods = strats.inject = strats.computed = function (parentVal, childVal, vm, key) {
  if (childVal && process.env.NODE_ENV !== 'production') {
    assertObjectType(key, childVal, vm);
  }

  if (!parentVal) {
    return childVal;
  }

  var ret = Object.create(null);
  extend(ret, parentVal);

  if (childVal) {
    extend(ret, childVal);
  }

  return ret;
};

strats.provide = mergeDataOrFn;
/**
 * Default strategy.
 */

var defaultStrat = function defaultStrat(parentVal, childVal) {
  return childVal === undefined ? parentVal : childVal;
};
/**
 * Validate component names
 */


function checkComponents(options) {
  for (var key in options.components) {
    validateComponentName(key);
  }
}

function validateComponentName(name) {
  if (!new RegExp("^[a-zA-Z][\\-\\.0-9_" + unicodeRegExp.source + "]*$").test(name)) {
    warn('Invalid component name: "' + name + '". Component names ' + 'should conform to valid custom element name in html5 specification.');
  }

  if (isBuiltInTag(name) || config.isReservedTag(name)) {
    warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + name);
  }
}
/**
 * Ensure all props option syntax are normalized into the
 * Object-based format.
 */


function normalizeProps(options, vm) {
  var props = options.props;

  if (!props) {
    return;
  }

  var res = {};
  var i, val, name;

  if (Array.isArray(props)) {
    i = props.length;

    while (i--) {
      val = props[i];

      if (typeof val === 'string') {
        name = camelize(val);
        res[name] = {
          type: null
        };
      } else if (process.env.NODE_ENV !== 'production') {
        warn('props must be strings when using array syntax.');
      }
    }
  } else if (isPlainObject(props)) {
    for (var key in props) {
      val = props[key];
      name = camelize(key);
      res[name] = isPlainObject(val) ? val : {
        type: val
      };
    }
  } else if (process.env.NODE_ENV !== 'production') {
    warn("Invalid value for option \"props\": expected an Array or an Object, " + "but got " + toRawType(props) + ".", vm);
  }

  options.props = res;
}
/**
 * Normalize all injections into Object-based format
 */


function normalizeInject(options, vm) {
  var inject = options.inject;

  if (!inject) {
    return;
  }

  var normalized = options.inject = {};

  if (Array.isArray(inject)) {
    for (var i = 0; i < inject.length; i++) {
      normalized[inject[i]] = {
        from: inject[i]
      };
    }
  } else if (isPlainObject(inject)) {
    for (var key in inject) {
      var val = inject[key];
      normalized[key] = isPlainObject(val) ? extend({
        from: key
      }, val) : {
        from: val
      };
    }
  } else if (process.env.NODE_ENV !== 'production') {
    warn("Invalid value for option \"inject\": expected an Array or an Object, " + "but got " + toRawType(inject) + ".", vm);
  }
}
/**
 * Normalize raw function directives into object format.
 */


function normalizeDirectives(options) {
  var dirs = options.directives;

  if (dirs) {
    for (var key in dirs) {
      var def$$1 = dirs[key];

      if (typeof def$$1 === 'function') {
        dirs[key] = {
          bind: def$$1,
          update: def$$1
        };
      }
    }
  }
}

function assertObjectType(name, value, vm) {
  if (!isPlainObject(value)) {
    warn("Invalid value for option \"" + name + "\": expected an Object, " + "but got " + toRawType(value) + ".", vm);
  }
}
/**
 * Merge two option objects into a new one.
 * Core utility used in both instantiation and inheritance.
 */


function mergeOptions(parent, child, vm) {
  if (process.env.NODE_ENV !== 'production') {
    checkComponents(child);
  }

  if (typeof child === 'function') {
    child = child.options;
  }

  normalizeProps(child, vm);
  normalizeInject(child, vm);
  normalizeDirectives(child); // Apply extends and mixins on the child options,
  // but only if it is a raw options object that isn't
  // the result of another mergeOptions call.
  // Only merged options has the _base property.

  if (!child._base) {
    if (child.extends) {
      parent = mergeOptions(parent, child.extends, vm);
    }

    if (child.mixins) {
      for (var i = 0, l = child.mixins.length; i < l; i++) {
        parent = mergeOptions(parent, child.mixins[i], vm);
      }
    }
  }

  var options = {};
  var key;

  for (key in parent) {
    mergeField(key);
  }

  for (key in child) {
    if (!hasOwn(parent, key)) {
      mergeField(key);
    }
  }

  function mergeField(key) {
    var strat = strats[key] || defaultStrat;
    options[key] = strat(parent[key], child[key], vm, key);
  }

  return options;
}
/**
 * Resolve an asset.
 * This function is used because child instances need access
 * to assets defined in its ancestor chain.
 */


function resolveAsset(options, type, id, warnMissing) {
  /* istanbul ignore if */
  if (typeof id !== 'string') {
    return;
  }

  var assets = options[type]; // check local registration variations first

  if (hasOwn(assets, id)) {
    return assets[id];
  }

  var camelizedId = camelize(id);

  if (hasOwn(assets, camelizedId)) {
    return assets[camelizedId];
  }

  var PascalCaseId = capitalize(camelizedId);

  if (hasOwn(assets, PascalCaseId)) {
    return assets[PascalCaseId];
  } // fallback to prototype chain


  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];

  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
    warn('Failed to resolve ' + type.slice(0, -1) + ': ' + id, options);
  }

  return res;
}
/*  */


function validateProp(key, propOptions, propsData, vm) {
  var prop = propOptions[key];
  var absent = !hasOwn(propsData, key);
  var value = propsData[key]; // boolean casting

  var booleanIndex = getTypeIndex(Boolean, prop.type);

  if (booleanIndex > -1) {
    if (absent && !hasOwn(prop, 'default')) {
      value = false;
    } else if (value === '' || value === hyphenate(key)) {
      // only cast empty string / same name to boolean if
      // boolean has higher priority
      var stringIndex = getTypeIndex(String, prop.type);

      if (stringIndex < 0 || booleanIndex < stringIndex) {
        value = true;
      }
    }
  } // check default value


  if (value === undefined) {
    value = getPropDefaultValue(vm, prop, key); // since the default value is a fresh copy,
    // make sure to observe it.

    var prevShouldObserve = shouldObserve;
    toggleObserving(true);
    observe(value);
    toggleObserving(prevShouldObserve);
  }

  if (process.env.NODE_ENV !== 'production' && // skip validation for weex recycle-list child component props
  !false) {
    assertProp(prop, key, value, vm, absent);
  }

  return value;
}
/**
 * Get the default value of a prop.
 */


function getPropDefaultValue(vm, prop, key) {
  // no default, return undefined
  if (!hasOwn(prop, 'default')) {
    return undefined;
  }

  var def = prop.default; // warn against non-factory defaults for Object & Array

  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
    warn('Invalid default value for prop "' + key + '": ' + 'Props with type Object/Array must use a factory function ' + 'to return the default value.', vm);
  } // the raw prop value was also undefined from previous render,
  // return previous default value to avoid unnecessary watcher trigger


  if (vm && vm.$options.propsData && vm.$options.propsData[key] === undefined && vm._props[key] !== undefined) {
    return vm._props[key];
  } // call factory function for non-Function types
  // a value is Function if its prototype is function even across different execution context


  return typeof def === 'function' && getType(prop.type) !== 'Function' ? def.call(vm) : def;
}
/**
 * Assert whether a prop is valid.
 */


function assertProp(prop, name, value, vm, absent) {
  if (prop.required && absent) {
    warn('Missing required prop: "' + name + '"', vm);
    return;
  }

  if (value == null && !prop.required) {
    return;
  }

  var type = prop.type;
  var valid = !type || type === true;
  var expectedTypes = [];

  if (type) {
    if (!Array.isArray(type)) {
      type = [type];
    }

    for (var i = 0; i < type.length && !valid; i++) {
      var assertedType = assertType(value, type[i]);
      expectedTypes.push(assertedType.expectedType || '');
      valid = assertedType.valid;
    }
  }

  if (!valid) {
    warn(getInvalidTypeMessage(name, value, expectedTypes), vm);
    return;
  }

  var validator = prop.validator;

  if (validator) {
    if (!validator(value)) {
      warn('Invalid prop: custom validator check failed for prop "' + name + '".', vm);
    }
  }
}

var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;

function assertType(value, type) {
  var valid;
  var expectedType = getType(type);

  if (simpleCheckRE.test(expectedType)) {
    var t = _typeof(value);

    valid = t === expectedType.toLowerCase(); // for primitive wrapper objects

    if (!valid && t === 'object') {
      valid = value instanceof type;
    }
  } else if (expectedType === 'Object') {
    valid = isPlainObject(value);
  } else if (expectedType === 'Array') {
    valid = Array.isArray(value);
  } else {
    valid = value instanceof type;
  }

  return {
    valid: valid,
    expectedType: expectedType
  };
}
/**
 * Use function string name to check built-in types,
 * because a simple equality check will fail when running
 * across different vms / iframes.
 */


function getType(fn) {
  var match = fn && fn.toString().match(/^\s*function (\w+)/);
  return match ? match[1] : '';
}

function isSameType(a, b) {
  return getType(a) === getType(b);
}

function getTypeIndex(type, expectedTypes) {
  if (!Array.isArray(expectedTypes)) {
    return isSameType(expectedTypes, type) ? 0 : -1;
  }

  for (var i = 0, len = expectedTypes.length; i < len; i++) {
    if (isSameType(expectedTypes[i], type)) {
      return i;
    }
  }

  return -1;
}

function getInvalidTypeMessage(name, value, expectedTypes) {
  var message = "Invalid prop: type check failed for prop \"" + name + "\"." + " Expected " + expectedTypes.map(capitalize).join(', ');
  var expectedType = expectedTypes[0];
  var receivedType = toRawType(value);
  var expectedValue = styleValue(value, expectedType);
  var receivedValue = styleValue(value, receivedType); // check if we need to specify expected value

  if (expectedTypes.length === 1 && isExplicable(expectedType) && !isBoolean(expectedType, receivedType)) {
    message += " with value " + expectedValue;
  }

  message += ", got " + receivedType + " "; // check if we need to specify received value

  if (isExplicable(receivedType)) {
    message += "with value " + receivedValue + ".";
  }

  return message;
}

function styleValue(value, type) {
  if (type === 'String') {
    return "\"" + value + "\"";
  } else if (type === 'Number') {
    return "" + Number(value);
  } else {
    return "" + value;
  }
}

function isExplicable(value) {
  var explicitTypes = ['string', 'number', 'boolean'];
  return explicitTypes.some(function (elem) {
    return value.toLowerCase() === elem;
  });
}

function isBoolean() {
  var args = [],
      len = arguments.length;

  while (len--) {
    args[len] = arguments[len];
  }

  return args.some(function (elem) {
    return elem.toLowerCase() === 'boolean';
  });
}
/*  */


function handleError(err, vm, info) {
  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
  // See: https://github.com/vuejs/vuex/issues/1505
  pushTarget();

  try {
    if (vm) {
      var cur = vm;

      while (cur = cur.$parent) {
        var hooks = cur.$options.errorCaptured;

        if (hooks) {
          for (var i = 0; i < hooks.length; i++) {
            try {
              var capture = hooks[i].call(cur, err, vm, info) === false;

              if (capture) {
                return;
              }
            } catch (e) {
              globalHandleError(e, cur, 'errorCaptured hook');
            }
          }
        }
      }
    }

    globalHandleError(err, vm, info);
  } finally {
    popTarget();
  }
}

function invokeWithErrorHandling(handler, context, args, vm, info) {
  var res;

  try {
    res = args ? handler.apply(context, args) : handler.call(context);

    if (res && !res._isVue && isPromise(res) && !res._handled) {
      res.catch(function (e) {
        return handleError(e, vm, info + " (Promise/async)");
      }); // issue #9511
      // avoid catch triggering multiple times when nested calls

      res._handled = true;
    }
  } catch (e) {
    handleError(e, vm, info);
  }

  return res;
}

function globalHandleError(err, vm, info) {
  if (config.errorHandler) {
    try {
      return config.errorHandler.call(null, err, vm, info);
    } catch (e) {
      // if the user intentionally throws the original error in the handler,
      // do not log it twice
      if (e !== err) {
        logError(e, null, 'config.errorHandler');
      }
    }
  }

  logError(err, vm, info);
}

function logError(err, vm, info) {
  if (process.env.NODE_ENV !== 'production') {
    warn("Error in " + info + ": \"" + err.toString() + "\"", vm);
  }
  /* istanbul ignore else */


  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
    console.error(err);
  } else {
    throw err;
  }
}
/*  */


var isUsingMicroTask = false;
var callbacks = [];
var pending = false;

function flushCallbacks() {
  pending = false;
  var copies = callbacks.slice(0);
  callbacks.length = 0;

  for (var i = 0; i < copies.length; i++) {
    copies[i]();
  }
} // Here we have async deferring wrappers using microtasks.
// In 2.5 we used (macro) tasks (in combination with microtasks).
// However, it has subtle problems when state is changed right before repaint
// (e.g. #6813, out-in transitions).
// Also, using (macro) tasks in event handler would cause some weird behaviors
// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
// So we now use microtasks everywhere, again.
// A major drawback of this tradeoff is that there are some scenarios
// where microtasks have too high a priority and fire in between supposedly
// sequential events (e.g. #4521, #6690, which have workarounds)
// or even between bubbling of the same event (#6566).


var timerFunc; // The nextTick behavior leverages the microtask queue, which can be accessed
// via either native Promise.then or MutationObserver.
// MutationObserver has wider support, however it is seriously bugged in
// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
// completely stops working after triggering a few times... so, if native
// Promise is available, we will use it:

/* istanbul ignore next, $flow-disable-line */

if (typeof Promise !== 'undefined' && isNative(Promise)) {
  var p = Promise.resolve();

  timerFunc = function timerFunc() {
    p.then(flushCallbacks); // In problematic UIWebViews, Promise.then doesn't completely break, but
    // it can get stuck in a weird state where callbacks are pushed into the
    // microtask queue but the queue isn't being flushed, until the browser
    // needs to do some other work, e.g. handle a timer. Therefore we can
    // "force" the microtask queue to be flushed by adding an empty timer.

    if (isIOS) {
      setTimeout(noop);
    }
  };

  isUsingMicroTask = true;
} else if (!isIE && typeof MutationObserver !== 'undefined' && (isNative(MutationObserver) || // PhantomJS and iOS 7.x
MutationObserver.toString() === '[object MutationObserverConstructor]')) {
  // Use MutationObserver where native Promise is not available,
  // e.g. PhantomJS, iOS7, Android 4.4
  // (#6466 MutationObserver is unreliable in IE11)
  var counter = 1;
  var observer = new MutationObserver(flushCallbacks);
  var textNode = document.createTextNode(String(counter));
  observer.observe(textNode, {
    characterData: true
  });

  timerFunc = function timerFunc() {
    counter = (counter + 1) % 2;
    textNode.data = String(counter);
  };

  isUsingMicroTask = true;
} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
  // Fallback to setImmediate.
  // Technically it leverages the (macro) task queue,
  // but it is still a better choice than setTimeout.
  timerFunc = function timerFunc() {
    setImmediate(flushCallbacks);
  };
} else {
  // Fallback to setTimeout.
  timerFunc = function timerFunc() {
    setTimeout(flushCallbacks, 0);
  };
}

function nextTick(cb, ctx) {
  var _resolve;

  callbacks.push(function () {
    if (cb) {
      try {
        cb.call(ctx);
      } catch (e) {
        handleError(e, ctx, 'nextTick');
      }
    } else if (_resolve) {
      _resolve(ctx);
    }
  });

  if (!pending) {
    pending = true;
    timerFunc();
  } // $flow-disable-line


  if (!cb && typeof Promise !== 'undefined') {
    return new Promise(function (resolve) {
      _resolve = resolve;
    });
  }
}
/*  */

/* not type checking this file because flow doesn't play well with Proxy */


var initProxy;

if (process.env.NODE_ENV !== 'production') {
  var allowedGlobals = makeMap('Infinity,undefined,NaN,isFinite,isNaN,' + 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' + 'require' // for Webpack/Browserify
  );

  var warnNonPresent = function warnNonPresent(target, key) {
    warn("Property or method \"" + key + "\" is not defined on the instance but " + 'referenced during render. Make sure that this property is reactive, ' + 'either in the data option, or for class-based components, by ' + 'initializing the property. ' + 'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.', target);
  };

  var warnReservedPrefix = function warnReservedPrefix(target, key) {
    warn("Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " + 'properties starting with "$" or "_" are not proxied in the Vue instance to ' + 'prevent conflicts with Vue internals. ' + 'See: https://vuejs.org/v2/api/#data', target);
  };

  var hasProxy = typeof Proxy !== 'undefined' && isNative(Proxy);

  if (hasProxy) {
    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
    config.keyCodes = new Proxy(config.keyCodes, {
      set: function set(target, key, value) {
        if (isBuiltInModifier(key)) {
          warn("Avoid overwriting built-in modifier in config.keyCodes: ." + key);
          return false;
        } else {
          target[key] = value;
          return true;
        }
      }
    });
  }

  var hasHandler = {
    has: function has(target, key) {
      var has = (key in target);
      var isAllowed = allowedGlobals(key) || typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data);

      if (!has && !isAllowed) {
        if (key in target.$data) {
          warnReservedPrefix(target, key);
        } else {
          warnNonPresent(target, key);
        }
      }

      return has || !isAllowed;
    }
  };
  var getHandler = {
    get: function get(target, key) {
      if (typeof key === 'string' && !(key in target)) {
        if (key in target.$data) {
          warnReservedPrefix(target, key);
        } else {
          warnNonPresent(target, key);
        }
      }

      return target[key];
    }
  };

  initProxy = function initProxy(vm) {
    if (hasProxy) {
      // determine which proxy handler to use
      var options = vm.$options;
      var handlers = options.render && options.render._withStripped ? getHandler : hasHandler;
      vm._renderProxy = new Proxy(vm, handlers);
    } else {
      vm._renderProxy = vm;
    }
  };
}
/*  */


var seenObjects = new _Set();
/**
 * Recursively traverse an object to evoke all converted
 * getters, so that every nested property inside the object
 * is collected as a "deep" dependency.
 */

function traverse(val) {
  _traverse(val, seenObjects);

  seenObjects.clear();
}

function _traverse(val, seen) {
  var i, keys;
  var isA = Array.isArray(val);

  if (!isA && !isObject(val) || Object.isFrozen(val) || val instanceof VNode) {
    return;
  }

  if (val.__ob__) {
    var depId = val.__ob__.dep.id;

    if (seen.has(depId)) {
      return;
    }

    seen.add(depId);
  }

  if (isA) {
    i = val.length;

    while (i--) {
      _traverse(val[i], seen);
    }
  } else {
    keys = Object.keys(val);
    i = keys.length;

    while (i--) {
      _traverse(val[keys[i]], seen);
    }
  }
}

var mark;
var measure;

if (process.env.NODE_ENV !== 'production') {
  var perf = inBrowser && window.performance;
  /* istanbul ignore if */

  if (perf && perf.mark && perf.measure && perf.clearMarks && perf.clearMeasures) {
    mark = function mark(tag) {
      return perf.mark(tag);
    };

    measure = function measure(name, startTag, endTag) {
      perf.measure(name, startTag, endTag);
      perf.clearMarks(startTag);
      perf.clearMarks(endTag); // perf.clearMeasures(name)
    };
  }
}
/*  */


var normalizeEvent = cached(function (name) {
  var passive = name.charAt(0) === '&';
  name = passive ? name.slice(1) : name;
  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first

  name = once$$1 ? name.slice(1) : name;
  var capture = name.charAt(0) === '!';
  name = capture ? name.slice(1) : name;
  return {
    name: name,
    once: once$$1,
    capture: capture,
    passive: passive
  };
});

function createFnInvoker(fns, vm) {
  function invoker() {
    var arguments$1 = arguments;
    var fns = invoker.fns;

    if (Array.isArray(fns)) {
      var cloned = fns.slice();

      for (var i = 0; i < cloned.length; i++) {
        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
      }
    } else {
      // return handler return value for single handlers
      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler");
    }
  }

  invoker.fns = fns;
  return invoker;
}

function updateListeners(on, oldOn, add, remove$$1, createOnceHandler, vm) {
  var name, def$$1, cur, old, event;

  for (name in on) {
    def$$1 = cur = on[name];
    old = oldOn[name];
    event = normalizeEvent(name);

    if (isUndef(cur)) {
      process.env.NODE_ENV !== 'production' && warn("Invalid handler for event \"" + event.name + "\": got " + String(cur), vm);
    } else if (isUndef(old)) {
      if (isUndef(cur.fns)) {
        cur = on[name] = createFnInvoker(cur, vm);
      }

      if (isTrue(event.once)) {
        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
      }

      add(event.name, cur, event.capture, event.passive, event.params);
    } else if (cur !== old) {
      old.fns = cur;
      on[name] = old;
    }
  }

  for (name in oldOn) {
    if (isUndef(on[name])) {
      event = normalizeEvent(name);
      remove$$1(event.name, oldOn[name], event.capture);
    }
  }
}
/*  */


function mergeVNodeHook(def, hookKey, hook) {
  if (def instanceof VNode) {
    def = def.data.hook || (def.data.hook = {});
  }

  var invoker;
  var oldHook = def[hookKey];

  function wrappedHook() {
    hook.apply(this, arguments); // important: remove merged hook to ensure it's called only once
    // and prevent memory leak

    remove(invoker.fns, wrappedHook);
  }

  if (isUndef(oldHook)) {
    // no existing hook
    invoker = createFnInvoker([wrappedHook]);
  } else {
    /* istanbul ignore if */
    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
      // already a merged invoker
      invoker = oldHook;
      invoker.fns.push(wrappedHook);
    } else {
      // existing plain hook
      invoker = createFnInvoker([oldHook, wrappedHook]);
    }
  }

  invoker.merged = true;
  def[hookKey] = invoker;
}
/*  */


function extractPropsFromVNodeData(data, Ctor, tag) {
  // we are only extracting raw values here.
  // validation and default values are handled in the child
  // component itself.
  var propOptions = Ctor.options.props;

  if (isUndef(propOptions)) {
    return;
  }

  var res = {};
  var attrs = data.attrs;
  var props = data.props;

  if (isDef(attrs) || isDef(props)) {
    for (var key in propOptions) {
      var altKey = hyphenate(key);

      if (process.env.NODE_ENV !== 'production') {
        var keyInLowerCase = key.toLowerCase();

        if (key !== keyInLowerCase && attrs && hasOwn(attrs, keyInLowerCase)) {
          tip("Prop \"" + keyInLowerCase + "\" is passed to component " + formatComponentName(tag || Ctor) + ", but the declared prop name is" + " \"" + key + "\". " + "Note that HTML attributes are case-insensitive and camelCased " + "props need to use their kebab-case equivalents when using in-DOM " + "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\".");
        }
      }

      checkProp(res, props, key, altKey, true) || checkProp(res, attrs, key, altKey, false);
    }
  }

  return res;
}

function checkProp(res, hash, key, altKey, preserve) {
  if (isDef(hash)) {
    if (hasOwn(hash, key)) {
      res[key] = hash[key];

      if (!preserve) {
        delete hash[key];
      }

      return true;
    } else if (hasOwn(hash, altKey)) {
      res[key] = hash[altKey];

      if (!preserve) {
        delete hash[altKey];
      }

      return true;
    }
  }

  return false;
}
/*  */
// The template compiler attempts to minimize the need for normalization by
// statically analyzing the template at compile time.
//
// For plain HTML markup, normalization can be completely skipped because the
// generated render function is guaranteed to return Array<VNode>. There are
// two cases where extra normalization is needed:
// 1. When the children contains components - because a functional component
// may return an Array instead of a single root. In this case, just a simple
// normalization is needed - if any child is an Array, we flatten the whole
// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
// because functional components already normalize their own children.


function simpleNormalizeChildren(children) {
  for (var i = 0; i < children.length; i++) {
    if (Array.isArray(children[i])) {
      return Array.prototype.concat.apply([], children);
    }
  }

  return children;
} // 2. When the children contains constructs that always generated nested Arrays,
// e.g. <template>, <slot>, v-for, or when the children is provided by user
// with hand-written render functions / JSX. In such cases a full normalization
// is needed to cater to all possible types of children values.


function normalizeChildren(children) {
  return isPrimitive(children) ? [createTextVNode(children)] : Array.isArray(children) ? normalizeArrayChildren(children) : undefined;
}

function isTextNode(node) {
  return isDef(node) && isDef(node.text) && isFalse(node.isComment);
}

function normalizeArrayChildren(children, nestedIndex) {
  var res = [];
  var i, c, lastIndex, last;

  for (i = 0; i < children.length; i++) {
    c = children[i];

    if (isUndef(c) || typeof c === 'boolean') {
      continue;
    }

    lastIndex = res.length - 1;
    last = res[lastIndex]; //  nested

    if (Array.isArray(c)) {
      if (c.length > 0) {
        c = normalizeArrayChildren(c, (nestedIndex || '') + "_" + i); // merge adjacent text nodes

        if (isTextNode(c[0]) && isTextNode(last)) {
          res[lastIndex] = createTextVNode(last.text + c[0].text);
          c.shift();
        }

        res.push.apply(res, c);
      }
    } else if (isPrimitive(c)) {
      if (isTextNode(last)) {
        // merge adjacent text nodes
        // this is necessary for SSR hydration because text nodes are
        // essentially merged when rendered to HTML strings
        res[lastIndex] = createTextVNode(last.text + c);
      } else if (c !== '') {
        // convert primitive to vnode
        res.push(createTextVNode(c));
      }
    } else {
      if (isTextNode(c) && isTextNode(last)) {
        // merge adjacent text nodes
        res[lastIndex] = createTextVNode(last.text + c.text);
      } else {
        // default key for nested array children (likely generated by v-for)
        if (isTrue(children._isVList) && isDef(c.tag) && isUndef(c.key) && isDef(nestedIndex)) {
          c.key = "__vlist" + nestedIndex + "_" + i + "__";
        }

        res.push(c);
      }
    }
  }

  return res;
}
/*  */


function initProvide(vm) {
  var provide = vm.$options.provide;

  if (provide) {
    vm._provided = typeof provide === 'function' ? provide.call(vm) : provide;
  }
}

function initInjections(vm) {
  var result = resolveInject(vm.$options.inject, vm);

  if (result) {
    toggleObserving(false);
    Object.keys(result).forEach(function (key) {
      /* istanbul ignore else */
      if (process.env.NODE_ENV !== 'production') {
        defineReactive$$1(vm, key, result[key], function () {
          warn("Avoid mutating an injected value directly since the changes will be " + "overwritten whenever the provided component re-renders. " + "injection being mutated: \"" + key + "\"", vm);
        });
      } else {
        defineReactive$$1(vm, key, result[key]);
      }
    });
    toggleObserving(true);
  }
}

function resolveInject(inject, vm) {
  if (inject) {
    // inject is :any because flow is not smart enough to figure out cached
    var result = Object.create(null);
    var keys = hasSymbol ? Reflect.ownKeys(inject) : Object.keys(inject);

    for (var i = 0; i < keys.length; i++) {
      var key = keys[i]; // #6574 in case the inject object is observed...

      if (key === '__ob__') {
        continue;
      }

      var provideKey = inject[key].from;
      var source = vm;

      while (source) {
        if (source._provided && hasOwn(source._provided, provideKey)) {
          result[key] = source._provided[provideKey];
          break;
        }

        source = source.$parent;
      }

      if (!source) {
        if ('default' in inject[key]) {
          var provideDefault = inject[key].default;
          result[key] = typeof provideDefault === 'function' ? provideDefault.call(vm) : provideDefault;
        } else if (process.env.NODE_ENV !== 'production') {
          warn("Injection \"" + key + "\" not found", vm);
        }
      }
    }

    return result;
  }
}
/*  */

/**
 * Runtime helper for resolving raw children VNodes into a slot object.
 */


function resolveSlots(children, context) {
  if (!children || !children.length) {
    return {};
  }

  var slots = {};

  for (var i = 0, l = children.length; i < l; i++) {
    var child = children[i];
    var data = child.data; // remove slot attribute if the node is resolved as a Vue slot node

    if (data && data.attrs && data.attrs.slot) {
      delete data.attrs.slot;
    } // named slots should only be respected if the vnode was rendered in the
    // same context.


    if ((child.context === context || child.fnContext === context) && data && data.slot != null) {
      var name = data.slot;
      var slot = slots[name] || (slots[name] = []);

      if (child.tag === 'template') {
        slot.push.apply(slot, child.children || []);
      } else {
        slot.push(child);
      }
    } else {
      (slots.default || (slots.default = [])).push(child);
    }
  } // ignore slots that contains only whitespace


  for (var name$1 in slots) {
    if (slots[name$1].every(isWhitespace)) {
      delete slots[name$1];
    }
  }

  return slots;
}

function isWhitespace(node) {
  return node.isComment && !node.asyncFactory || node.text === ' ';
}
/*  */


function normalizeScopedSlots(slots, normalSlots, prevSlots) {
  var res;
  var hasNormalSlots = Object.keys(normalSlots).length > 0;
  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
  var key = slots && slots.$key;

  if (!slots) {
    res = {};
  } else if (slots._normalized) {
    // fast path 1: child component re-render only, parent did not change
    return slots._normalized;
  } else if (isStable && prevSlots && prevSlots !== emptyObject && key === prevSlots.$key && !hasNormalSlots && !prevSlots.$hasNormal) {
    // fast path 2: stable scoped slots w/ no normal slots to proxy,
    // only need to normalize once
    return prevSlots;
  } else {
    res = {};

    for (var key$1 in slots) {
      if (slots[key$1] && key$1[0] !== '$') {
        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
      }
    }
  } // expose normal slots on scopedSlots


  for (var key$2 in normalSlots) {
    if (!(key$2 in res)) {
      res[key$2] = proxyNormalSlot(normalSlots, key$2);
    }
  } // avoriaz seems to mock a non-extensible $scopedSlots object
  // and when that is passed down this would cause an error


  if (slots && Object.isExtensible(slots)) {
    slots._normalized = res;
  }

  def(res, '$stable', isStable);
  def(res, '$key', key);
  def(res, '$hasNormal', hasNormalSlots);
  return res;
}

function normalizeScopedSlot(normalSlots, key, fn) {
  var normalized = function normalized() {
    var res = arguments.length ? fn.apply(null, arguments) : fn({});
    res = res && _typeof(res) === 'object' && !Array.isArray(res) ? [res] // single vnode
    : normalizeChildren(res);
    return res && (res.length === 0 || res.length === 1 && res[0].isComment // #9658
    ) ? undefined : res;
  }; // this is a slot using the new v-slot syntax without scope. although it is
  // compiled as a scoped slot, render fn users would expect it to be present
  // on this.$slots because the usage is semantically a normal slot.


  if (fn.proxy) {
    Object.defineProperty(normalSlots, key, {
      get: normalized,
      enumerable: true,
      configurable: true
    });
  }

  return normalized;
}

function proxyNormalSlot(slots, key) {
  return function () {
    return slots[key];
  };
}
/*  */

/**
 * Runtime helper for rendering v-for lists.
 */


function renderList(val, render) {
  var ret, i, l, keys, key;

  if (Array.isArray(val) || typeof val === 'string') {
    ret = new Array(val.length);

    for (i = 0, l = val.length; i < l; i++) {
      ret[i] = render(val[i], i);
    }
  } else if (typeof val === 'number') {
    ret = new Array(val);

    for (i = 0; i < val; i++) {
      ret[i] = render(i + 1, i);
    }
  } else if (isObject(val)) {
    if (hasSymbol && val[Symbol.iterator]) {
      ret = [];
      var iterator = val[Symbol.iterator]();
      var result = iterator.next();

      while (!result.done) {
        ret.push(render(result.value, ret.length));
        result = iterator.next();
      }
    } else {
      keys = Object.keys(val);
      ret = new Array(keys.length);

      for (i = 0, l = keys.length; i < l; i++) {
        key = keys[i];
        ret[i] = render(val[key], key, i);
      }
    }
  }

  if (!isDef(ret)) {
    ret = [];
  }

  ret._isVList = true;
  return ret;
}
/*  */

/**
 * Runtime helper for rendering <slot>
 */


function renderSlot(name, fallback, props, bindObject) {
  var scopedSlotFn = this.$scopedSlots[name];
  var nodes;

  if (scopedSlotFn) {
    // scoped slot
    props = props || {};

    if (bindObject) {
      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
        warn('slot v-bind without argument expects an Object', this);
      }

      props = extend(extend({}, bindObject), props);
    }

    nodes = scopedSlotFn(props) || fallback;
  } else {
    nodes = this.$slots[name] || fallback;
  }

  var target = props && props.slot;

  if (target) {
    return this.$createElement('template', {
      slot: target
    }, nodes);
  } else {
    return nodes;
  }
}
/*  */

/**
 * Runtime helper for resolving filters
 */


function resolveFilter(id) {
  return resolveAsset(this.$options, 'filters', id, true) || identity;
}
/*  */


function isKeyNotMatch(expect, actual) {
  if (Array.isArray(expect)) {
    return expect.indexOf(actual) === -1;
  } else {
    return expect !== actual;
  }
}
/**
 * Runtime helper for checking keyCodes from config.
 * exposed as Vue.prototype._k
 * passing in eventKeyName as last argument separately for backwards compat
 */


function checkKeyCodes(eventKeyCode, key, builtInKeyCode, eventKeyName, builtInKeyName) {
  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;

  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
    return isKeyNotMatch(builtInKeyName, eventKeyName);
  } else if (mappedKeyCode) {
    return isKeyNotMatch(mappedKeyCode, eventKeyCode);
  } else if (eventKeyName) {
    return hyphenate(eventKeyName) !== key;
  }
}
/*  */

/**
 * Runtime helper for merging v-bind="object" into a VNode's data.
 */


function bindObjectProps(data, tag, value, asProp, isSync) {
  if (value) {
    if (!isObject(value)) {
      process.env.NODE_ENV !== 'production' && warn('v-bind without argument expects an Object or Array value', this);
    } else {
      if (Array.isArray(value)) {
        value = toObject(value);
      }

      var hash;

      var loop = function loop(key) {
        if (key === 'class' || key === 'style' || isReservedAttribute(key)) {
          hash = data;
        } else {
          var type = data.attrs && data.attrs.type;
          hash = asProp || config.mustUseProp(tag, type, key) ? data.domProps || (data.domProps = {}) : data.attrs || (data.attrs = {});
        }

        var camelizedKey = camelize(key);
        var hyphenatedKey = hyphenate(key);

        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
          hash[key] = value[key];

          if (isSync) {
            var on = data.on || (data.on = {});

            on["update:" + key] = function ($event) {
              value[key] = $event;
            };
          }
        }
      };

      for (var key in value) {
        loop(key);
      }
    }
  }

  return data;
}
/*  */

/**
 * Runtime helper for rendering static trees.
 */


function renderStatic(index, isInFor) {
  var cached = this._staticTrees || (this._staticTrees = []);
  var tree = cached[index]; // if has already-rendered static tree and not inside v-for,
  // we can reuse the same tree.

  if (tree && !isInFor) {
    return tree;
  } // otherwise, render a fresh tree.


  tree = cached[index] = this.$options.staticRenderFns[index].call(this._renderProxy, null, this // for render fns generated for functional component templates
  );
  markStatic(tree, "__static__" + index, false);
  return tree;
}
/**
 * Runtime helper for v-once.
 * Effectively it means marking the node as static with a unique key.
 */


function markOnce(tree, index, key) {
  markStatic(tree, "__once__" + index + (key ? "_" + key : ""), true);
  return tree;
}

function markStatic(tree, key, isOnce) {
  if (Array.isArray(tree)) {
    for (var i = 0; i < tree.length; i++) {
      if (tree[i] && typeof tree[i] !== 'string') {
        markStaticNode(tree[i], key + "_" + i, isOnce);
      }
    }
  } else {
    markStaticNode(tree, key, isOnce);
  }
}

function markStaticNode(node, key, isOnce) {
  node.isStatic = true;
  node.key = key;
  node.isOnce = isOnce;
}
/*  */


function bindObjectListeners(data, value) {
  if (value) {
    if (!isPlainObject(value)) {
      process.env.NODE_ENV !== 'production' && warn('v-on without argument expects an Object value', this);
    } else {
      var on = data.on = data.on ? extend({}, data.on) : {};

      for (var key in value) {
        var existing = on[key];
        var ours = value[key];
        on[key] = existing ? [].concat(existing, ours) : ours;
      }
    }
  }

  return data;
}
/*  */


function resolveScopedSlots(fns, // see flow/vnode
res, // the following are added in 2.6
hasDynamicKeys, contentHashKey) {
  res = res || {
    $stable: !hasDynamicKeys
  };

  for (var i = 0; i < fns.length; i++) {
    var slot = fns[i];

    if (Array.isArray(slot)) {
      resolveScopedSlots(slot, res, hasDynamicKeys);
    } else if (slot) {
      // marker for reverse proxying v-slot without scope on this.$slots
      if (slot.proxy) {
        slot.fn.proxy = true;
      }

      res[slot.key] = slot.fn;
    }
  }

  if (contentHashKey) {
    res.$key = contentHashKey;
  }

  return res;
}
/*  */


function bindDynamicKeys(baseObj, values) {
  for (var i = 0; i < values.length; i += 2) {
    var key = values[i];

    if (typeof key === 'string' && key) {
      baseObj[values[i]] = values[i + 1];
    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
      // null is a special value for explicitly removing a binding
      warn("Invalid value for dynamic directive argument (expected string or null): " + key, this);
    }
  }

  return baseObj;
} // helper to dynamically append modifier runtime markers to event names.
// ensure only append when value is already string, otherwise it will be cast
// to string and cause the type check to miss.


function prependModifier(value, symbol) {
  return typeof value === 'string' ? symbol + value : value;
}
/*  */


function installRenderHelpers(target) {
  target._o = markOnce;
  target._n = toNumber;
  target._s = toString;
  target._l = renderList;
  target._t = renderSlot;
  target._q = looseEqual;
  target._i = looseIndexOf;
  target._m = renderStatic;
  target._f = resolveFilter;
  target._k = checkKeyCodes;
  target._b = bindObjectProps;
  target._v = createTextVNode;
  target._e = createEmptyVNode;
  target._u = resolveScopedSlots;
  target._g = bindObjectListeners;
  target._d = bindDynamicKeys;
  target._p = prependModifier;
}
/*  */


function FunctionalRenderContext(data, props, children, parent, Ctor) {
  var this$1 = this;
  var options = Ctor.options; // ensure the createElement function in functional components
  // gets a unique context - this is necessary for correct named slot check

  var contextVm;

  if (hasOwn(parent, '_uid')) {
    contextVm = Object.create(parent); // $flow-disable-line

    contextVm._original = parent;
  } else {
    // the context vm passed in is a functional context as well.
    // in this case we want to make sure we are able to get a hold to the
    // real context instance.
    contextVm = parent; // $flow-disable-line

    parent = parent._original;
  }

  var isCompiled = isTrue(options._compiled);
  var needNormalization = !isCompiled;
  this.data = data;
  this.props = props;
  this.children = children;
  this.parent = parent;
  this.listeners = data.on || emptyObject;
  this.injections = resolveInject(options.inject, parent);

  this.slots = function () {
    if (!this$1.$slots) {
      normalizeScopedSlots(data.scopedSlots, this$1.$slots = resolveSlots(children, parent));
    }

    return this$1.$slots;
  };

  Object.defineProperty(this, 'scopedSlots', {
    enumerable: true,
    get: function get() {
      return normalizeScopedSlots(data.scopedSlots, this.slots());
    }
  }); // support for compiled functional template

  if (isCompiled) {
    // exposing $options for renderStatic()
    this.$options = options; // pre-resolve slots for renderSlot()

    this.$slots = this.slots();
    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
  }

  if (options._scopeId) {
    this._c = function (a, b, c, d) {
      var vnode = createElement(contextVm, a, b, c, d, needNormalization);

      if (vnode && !Array.isArray(vnode)) {
        vnode.fnScopeId = options._scopeId;
        vnode.fnContext = parent;
      }

      return vnode;
    };
  } else {
    this._c = function (a, b, c, d) {
      return createElement(contextVm, a, b, c, d, needNormalization);
    };
  }
}

installRenderHelpers(FunctionalRenderContext.prototype);

function createFunctionalComponent(Ctor, propsData, data, contextVm, children) {
  var options = Ctor.options;
  var props = {};
  var propOptions = options.props;

  if (isDef(propOptions)) {
    for (var key in propOptions) {
      props[key] = validateProp(key, propOptions, propsData || emptyObject);
    }
  } else {
    if (isDef(data.attrs)) {
      mergeProps(props, data.attrs);
    }

    if (isDef(data.props)) {
      mergeProps(props, data.props);
    }
  }

  var renderContext = new FunctionalRenderContext(data, props, children, contextVm, Ctor);
  var vnode = options.render.call(null, renderContext._c, renderContext);

  if (vnode instanceof VNode) {
    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext);
  } else if (Array.isArray(vnode)) {
    var vnodes = normalizeChildren(vnode) || [];
    var res = new Array(vnodes.length);

    for (var i = 0; i < vnodes.length; i++) {
      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
    }

    return res;
  }
}

function cloneAndMarkFunctionalResult(vnode, data, contextVm, options, renderContext) {
  // #7817 clone node before setting fnContext, otherwise if the node is reused
  // (e.g. it was from a cached normal slot) the fnContext causes named slots
  // that should not be matched to match.
  var clone = cloneVNode(vnode);
  clone.fnContext = contextVm;
  clone.fnOptions = options;

  if (process.env.NODE_ENV !== 'production') {
    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
  }

  if (data.slot) {
    (clone.data || (clone.data = {})).slot = data.slot;
  }

  return clone;
}

function mergeProps(to, from) {
  for (var key in from) {
    to[camelize(key)] = from[key];
  }
}
/*  */

/*  */

/*  */

/*  */
// inline hooks to be invoked on component VNodes during patch


var componentVNodeHooks = {
  init: function init(vnode, hydrating) {
    if (vnode.componentInstance && !vnode.componentInstance._isDestroyed && vnode.data.keepAlive) {
      // kept-alive components, treat as a patch
      var mountedNode = vnode; // work around flow

      componentVNodeHooks.prepatch(mountedNode, mountedNode);
    } else {
      var child = vnode.componentInstance = createComponentInstanceForVnode(vnode, activeInstance);
      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
    }
  },
  prepatch: function prepatch(oldVnode, vnode) {
    var options = vnode.componentOptions;
    var child = vnode.componentInstance = oldVnode.componentInstance;
    updateChildComponent(child, options.propsData, // updated props
    options.listeners, // updated listeners
    vnode, // new parent vnode
    options.children // new children
    );
  },
  insert: function insert(vnode) {
    var context = vnode.context;
    var componentInstance = vnode.componentInstance;

    if (!componentInstance._isMounted) {
      componentInstance._isMounted = true;
      callHook(componentInstance, 'mounted');
    }

    if (vnode.data.keepAlive) {
      if (context._isMounted) {
        // vue-router#1212
        // During updates, a kept-alive component's child components may
        // change, so directly walking the tree here may call activated hooks
        // on incorrect children. Instead we push them into a queue which will
        // be processed after the whole patch process ended.
        queueActivatedComponent(componentInstance);
      } else {
        activateChildComponent(componentInstance, true
        /* direct */
        );
      }
    }
  },
  destroy: function destroy(vnode) {
    var componentInstance = vnode.componentInstance;

    if (!componentInstance._isDestroyed) {
      if (!vnode.data.keepAlive) {
        componentInstance.$destroy();
      } else {
        deactivateChildComponent(componentInstance, true
        /* direct */
        );
      }
    }
  }
};
var hooksToMerge = Object.keys(componentVNodeHooks);

function createComponent(Ctor, data, context, children, tag) {
  if (isUndef(Ctor)) {
    return;
  }

  var baseCtor = context.$options._base; // plain options object: turn it into a constructor

  if (isObject(Ctor)) {
    Ctor = baseCtor.extend(Ctor);
  } // if at this stage it's not a constructor or an async component factory,
  // reject.


  if (typeof Ctor !== 'function') {
    if (process.env.NODE_ENV !== 'production') {
      warn("Invalid Component definition: " + String(Ctor), context);
    }

    return;
  } // async component


  var asyncFactory;

  if (isUndef(Ctor.cid)) {
    asyncFactory = Ctor;
    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);

    if (Ctor === undefined) {
      // return a placeholder node for async component, which is rendered
      // as a comment node but preserves all the raw information for the node.
      // the information will be used for async server-rendering and hydration.
      return createAsyncPlaceholder(asyncFactory, data, context, children, tag);
    }
  }

  data = data || {}; // resolve constructor options in case global mixins are applied after
  // component constructor creation

  resolveConstructorOptions(Ctor); // transform component v-model data into props & events

  if (isDef(data.model)) {
    transformModel(Ctor.options, data);
  } // extract props


  var propsData = extractPropsFromVNodeData(data, Ctor, tag); // functional component

  if (isTrue(Ctor.options.functional)) {
    return createFunctionalComponent(Ctor, propsData, data, context, children);
  } // extract listeners, since these needs to be treated as
  // child component listeners instead of DOM listeners


  var listeners = data.on; // replace with listeners with .native modifier
  // so it gets processed during parent component patch.

  data.on = data.nativeOn;

  if (isTrue(Ctor.options.abstract)) {
    // abstract components do not keep anything
    // other than props & listeners & slot
    // work around flow
    var slot = data.slot;
    data = {};

    if (slot) {
      data.slot = slot;
    }
  } // install component management hooks onto the placeholder node


  installComponentHooks(data); // return a placeholder vnode

  var name = Ctor.options.name || tag;
  var vnode = new VNode("vue-component-" + Ctor.cid + (name ? "-" + name : ''), data, undefined, undefined, undefined, context, {
    Ctor: Ctor,
    propsData: propsData,
    listeners: listeners,
    tag: tag,
    children: children
  }, asyncFactory);
  return vnode;
}

function createComponentInstanceForVnode(vnode, // we know it's MountedComponentVNode but flow doesn't
parent // activeInstance in lifecycle state
) {
  var options = {
    _isComponent: true,
    _parentVnode: vnode,
    parent: parent
  }; // check inline-template render functions

  var inlineTemplate = vnode.data.inlineTemplate;

  if (isDef(inlineTemplate)) {
    options.render = inlineTemplate.render;
    options.staticRenderFns = inlineTemplate.staticRenderFns;
  }

  return new vnode.componentOptions.Ctor(options);
}

function installComponentHooks(data) {
  var hooks = data.hook || (data.hook = {});

  for (var i = 0; i < hooksToMerge.length; i++) {
    var key = hooksToMerge[i];
    var existing = hooks[key];
    var toMerge = componentVNodeHooks[key];

    if (existing !== toMerge && !(existing && existing._merged)) {
      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
    }
  }
}

function mergeHook$1(f1, f2) {
  var merged = function merged(a, b) {
    // flow complains about extra args which is why we use any
    f1(a, b);
    f2(a, b);
  };

  merged._merged = true;
  return merged;
} // transform component v-model info (value and callback) into
// prop and event handler respectively.


function transformModel(options, data) {
  var prop = options.model && options.model.prop || 'value';
  var event = options.model && options.model.event || 'input';
  (data.attrs || (data.attrs = {}))[prop] = data.model.value;
  var on = data.on || (data.on = {});
  var existing = on[event];
  var callback = data.model.callback;

  if (isDef(existing)) {
    if (Array.isArray(existing) ? existing.indexOf(callback) === -1 : existing !== callback) {
      on[event] = [callback].concat(existing);
    }
  } else {
    on[event] = callback;
  }
}
/*  */


var SIMPLE_NORMALIZE = 1;
var ALWAYS_NORMALIZE = 2; // wrapper function for providing a more flexible interface
// without getting yelled at by flow

function createElement(context, tag, data, children, normalizationType, alwaysNormalize) {
  if (Array.isArray(data) || isPrimitive(data)) {
    normalizationType = children;
    children = data;
    data = undefined;
  }

  if (isTrue(alwaysNormalize)) {
    normalizationType = ALWAYS_NORMALIZE;
  }

  return _createElement(context, tag, data, children, normalizationType);
}

function _createElement(context, tag, data, children, normalizationType) {
  if (isDef(data) && isDef(data.__ob__)) {
    process.env.NODE_ENV !== 'production' && warn("Avoid using observed data object as vnode data: " + JSON.stringify(data) + "\n" + 'Always create fresh vnode data objects in each render!', context);
    return createEmptyVNode();
  } // object syntax in v-bind


  if (isDef(data) && isDef(data.is)) {
    tag = data.is;
  }

  if (!tag) {
    // in case of component :is set to falsy value
    return createEmptyVNode();
  } // warn against non-primitive key


  if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.key) && !isPrimitive(data.key)) {
    {
      warn('Avoid using non-primitive value as key, ' + 'use string/number value instead.', context);
    }
  } // support single function children as default scoped slot


  if (Array.isArray(children) && typeof children[0] === 'function') {
    data = data || {};
    data.scopedSlots = {
      default: children[0]
    };
    children.length = 0;
  }

  if (normalizationType === ALWAYS_NORMALIZE) {
    children = normalizeChildren(children);
  } else if (normalizationType === SIMPLE_NORMALIZE) {
    children = simpleNormalizeChildren(children);
  }

  var vnode, ns;

  if (typeof tag === 'string') {
    var Ctor;
    ns = context.$vnode && context.$vnode.ns || config.getTagNamespace(tag);

    if (config.isReservedTag(tag)) {
      // platform built-in elements
      if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.nativeOn)) {
        warn("The .native modifier for v-on is only valid on components but it was used on <" + tag + ">.", context);
      }

      vnode = new VNode(config.parsePlatformTagName(tag), data, children, undefined, undefined, context);
    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
      // component
      vnode = createComponent(Ctor, data, context, children, tag);
    } else {
      // unknown or unlisted namespaced elements
      // check at runtime because it may get assigned a namespace when its
      // parent normalizes children
      vnode = new VNode(tag, data, children, undefined, undefined, context);
    }
  } else {
    // direct component options / constructor
    vnode = createComponent(tag, data, context, children);
  }

  if (Array.isArray(vnode)) {
    return vnode;
  } else if (isDef(vnode)) {
    if (isDef(ns)) {
      applyNS(vnode, ns);
    }

    if (isDef(data)) {
      registerDeepBindings(data);
    }

    return vnode;
  } else {
    return createEmptyVNode();
  }
}

function applyNS(vnode, ns, force) {
  vnode.ns = ns;

  if (vnode.tag === 'foreignObject') {
    // use default namespace inside foreignObject
    ns = undefined;
    force = true;
  }

  if (isDef(vnode.children)) {
    for (var i = 0, l = vnode.children.length; i < l; i++) {
      var child = vnode.children[i];

      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force) && child.tag !== 'svg')) {
        applyNS(child, ns, force);
      }
    }
  }
} // ref #5318
// necessary to ensure parent re-render when deep bindings like :style and
// :class are used on slot nodes


function registerDeepBindings(data) {
  if (isObject(data.style)) {
    traverse(data.style);
  }

  if (isObject(data.class)) {
    traverse(data.class);
  }
}
/*  */


function initRender(vm) {
  vm._vnode = null; // the root of the child tree

  vm._staticTrees = null; // v-once cached trees

  var options = vm.$options;
  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree

  var renderContext = parentVnode && parentVnode.context;
  vm.$slots = resolveSlots(options._renderChildren, renderContext);
  vm.$scopedSlots = emptyObject; // bind the createElement fn to this instance
  // so that we get proper render context inside it.
  // args order: tag, data, children, normalizationType, alwaysNormalize
  // internal version is used by render functions compiled from templates

  vm._c = function (a, b, c, d) {
    return createElement(vm, a, b, c, d, false);
  }; // normalization is always applied for the public version, used in
  // user-written render functions.


  vm.$createElement = function (a, b, c, d) {
    return createElement(vm, a, b, c, d, true);
  }; // $attrs & $listeners are exposed for easier HOC creation.
  // they need to be reactive so that HOCs using them are always updated


  var parentData = parentVnode && parentVnode.data;
  /* istanbul ignore else */

  if (process.env.NODE_ENV !== 'production') {
    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
    }, true);
    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
    }, true);
  } else {
    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
  }
}

var currentRenderingInstance = null;

function renderMixin(Vue) {
  // install runtime convenience helpers
  installRenderHelpers(Vue.prototype);

  Vue.prototype.$nextTick = function (fn) {
    return nextTick(fn, this);
  };

  Vue.prototype._render = function () {
    var vm = this;
    var ref = vm.$options;
    var render = ref.render;
    var _parentVnode = ref._parentVnode;

    if (_parentVnode) {
      vm.$scopedSlots = normalizeScopedSlots(_parentVnode.data.scopedSlots, vm.$slots, vm.$scopedSlots);
    } // set parent vnode. this allows render functions to have access
    // to the data on the placeholder node.


    vm.$vnode = _parentVnode; // render self

    var vnode;

    try {
      // There's no need to maintain a stack because all render fns are called
      // separately from one another. Nested component's render fns are called
      // when parent component is patched.
      currentRenderingInstance = vm;
      vnode = render.call(vm._renderProxy, vm.$createElement);
    } catch (e) {
      handleError(e, vm, "render"); // return error render result,
      // or previous vnode to prevent render error causing blank component

      /* istanbul ignore else */

      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
        try {
          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
        } catch (e) {
          handleError(e, vm, "renderError");
          vnode = vm._vnode;
        }
      } else {
        vnode = vm._vnode;
      }
    } finally {
      currentRenderingInstance = null;
    } // if the returned array contains only a single node, allow it


    if (Array.isArray(vnode) && vnode.length === 1) {
      vnode = vnode[0];
    } // return empty vnode in case the render function errored out


    if (!(vnode instanceof VNode)) {
      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
        warn('Multiple root nodes returned from render function. Render function ' + 'should return a single root node.', vm);
      }

      vnode = createEmptyVNode();
    } // set parent


    vnode.parent = _parentVnode;
    return vnode;
  };
}
/*  */


function ensureCtor(comp, base) {
  if (comp.__esModule || hasSymbol && comp[Symbol.toStringTag] === 'Module') {
    comp = comp.default;
  }

  return isObject(comp) ? base.extend(comp) : comp;
}

function createAsyncPlaceholder(factory, data, context, children, tag) {
  var node = createEmptyVNode();
  node.asyncFactory = factory;
  node.asyncMeta = {
    data: data,
    context: context,
    children: children,
    tag: tag
  };
  return node;
}

function resolveAsyncComponent(factory, baseCtor) {
  if (isTrue(factory.error) && isDef(factory.errorComp)) {
    return factory.errorComp;
  }

  if (isDef(factory.resolved)) {
    return factory.resolved;
  }

  var owner = currentRenderingInstance;

  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
    // already pending
    factory.owners.push(owner);
  }

  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
    return factory.loadingComp;
  }

  if (owner && !isDef(factory.owners)) {
    var owners = factory.owners = [owner];
    var sync = true;
    var timerLoading = null;
    var timerTimeout = null;
    owner.$on('hook:destroyed', function () {
      return remove(owners, owner);
    });

    var forceRender = function forceRender(renderCompleted) {
      for (var i = 0, l = owners.length; i < l; i++) {
        owners[i].$forceUpdate();
      }

      if (renderCompleted) {
        owners.length = 0;

        if (timerLoading !== null) {
          clearTimeout(timerLoading);
          timerLoading = null;
        }

        if (timerTimeout !== null) {
          clearTimeout(timerTimeout);
          timerTimeout = null;
        }
      }
    };

    var resolve = once(function (res) {
      // cache resolved
      factory.resolved = ensureCtor(res, baseCtor); // invoke callbacks only if this is not a synchronous resolve
      // (async resolves are shimmed as synchronous during SSR)

      if (!sync) {
        forceRender(true);
      } else {
        owners.length = 0;
      }
    });
    var reject = once(function (reason) {
      process.env.NODE_ENV !== 'production' && warn("Failed to resolve async component: " + String(factory) + (reason ? "\nReason: " + reason : ''));

      if (isDef(factory.errorComp)) {
        factory.error = true;
        forceRender(true);
      }
    });
    var res = factory(resolve, reject);

    if (isObject(res)) {
      if (isPromise(res)) {
        // () => Promise
        if (isUndef(factory.resolved)) {
          res.then(resolve, reject);
        }
      } else if (isPromise(res.component)) {
        res.component.then(resolve, reject);

        if (isDef(res.error)) {
          factory.errorComp = ensureCtor(res.error, baseCtor);
        }

        if (isDef(res.loading)) {
          factory.loadingComp = ensureCtor(res.loading, baseCtor);

          if (res.delay === 0) {
            factory.loading = true;
          } else {
            timerLoading = setTimeout(function () {
              timerLoading = null;

              if (isUndef(factory.resolved) && isUndef(factory.error)) {
                factory.loading = true;
                forceRender(false);
              }
            }, res.delay || 200);
          }
        }

        if (isDef(res.timeout)) {
          timerTimeout = setTimeout(function () {
            timerTimeout = null;

            if (isUndef(factory.resolved)) {
              reject(process.env.NODE_ENV !== 'production' ? "timeout (" + res.timeout + "ms)" : null);
            }
          }, res.timeout);
        }
      }
    }

    sync = false; // return in case resolved synchronously

    return factory.loading ? factory.loadingComp : factory.resolved;
  }
}
/*  */


function isAsyncPlaceholder(node) {
  return node.isComment && node.asyncFactory;
}
/*  */


function getFirstComponentChild(children) {
  if (Array.isArray(children)) {
    for (var i = 0; i < children.length; i++) {
      var c = children[i];

      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
        return c;
      }
    }
  }
}
/*  */

/*  */


function initEvents(vm) {
  vm._events = Object.create(null);
  vm._hasHookEvent = false; // init parent attached events

  var listeners = vm.$options._parentListeners;

  if (listeners) {
    updateComponentListeners(vm, listeners);
  }
}

var target;

function add(event, fn) {
  target.$on(event, fn);
}

function remove$1(event, fn) {
  target.$off(event, fn);
}

function createOnceHandler(event, fn) {
  var _target = target;
  return function onceHandler() {
    var res = fn.apply(null, arguments);

    if (res !== null) {
      _target.$off(event, onceHandler);
    }
  };
}

function updateComponentListeners(vm, listeners, oldListeners) {
  target = vm;
  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
  target = undefined;
}

function eventsMixin(Vue) {
  var hookRE = /^hook:/;

  Vue.prototype.$on = function (event, fn) {
    var vm = this;

    if (Array.isArray(event)) {
      for (var i = 0, l = event.length; i < l; i++) {
        vm.$on(event[i], fn);
      }
    } else {
      (vm._events[event] || (vm._events[event] = [])).push(fn); // optimize hook:event cost by using a boolean flag marked at registration
      // instead of a hash lookup

      if (hookRE.test(event)) {
        vm._hasHookEvent = true;
      }
    }

    return vm;
  };

  Vue.prototype.$once = function (event, fn) {
    var vm = this;

    function on() {
      vm.$off(event, on);
      fn.apply(vm, arguments);
    }

    on.fn = fn;
    vm.$on(event, on);
    return vm;
  };

  Vue.prototype.$off = function (event, fn) {
    var vm = this; // all

    if (!arguments.length) {
      vm._events = Object.create(null);
      return vm;
    } // array of events


    if (Array.isArray(event)) {
      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
        vm.$off(event[i$1], fn);
      }

      return vm;
    } // specific event


    var cbs = vm._events[event];

    if (!cbs) {
      return vm;
    }

    if (!fn) {
      vm._events[event] = null;
      return vm;
    } // specific handler


    var cb;
    var i = cbs.length;

    while (i--) {
      cb = cbs[i];

      if (cb === fn || cb.fn === fn) {
        cbs.splice(i, 1);
        break;
      }
    }

    return vm;
  };

  Vue.prototype.$emit = function (event) {
    var vm = this;

    if (process.env.NODE_ENV !== 'production') {
      var lowerCaseEvent = event.toLowerCase();

      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
        tip("Event \"" + lowerCaseEvent + "\" is emitted in component " + formatComponentName(vm) + " but the handler is registered for \"" + event + "\". " + "Note that HTML attributes are case-insensitive and you cannot use " + "v-on to listen to camelCase events when using in-DOM templates. " + "You should probably use \"" + hyphenate(event) + "\" instead of \"" + event + "\".");
      }
    }

    var cbs = vm._events[event];

    if (cbs) {
      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
      var args = toArray(arguments, 1);
      var info = "event handler for \"" + event + "\"";

      for (var i = 0, l = cbs.length; i < l; i++) {
        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
      }
    }

    return vm;
  };
}
/*  */


var activeInstance = null;
var isUpdatingChildComponent = false;

function setActiveInstance(vm) {
  var prevActiveInstance = activeInstance;
  activeInstance = vm;
  return function () {
    activeInstance = prevActiveInstance;
  };
}

function initLifecycle(vm) {
  var options = vm.$options; // locate first non-abstract parent

  var parent = options.parent;

  if (parent && !options.abstract) {
    while (parent.$options.abstract && parent.$parent) {
      parent = parent.$parent;
    }

    parent.$children.push(vm);
  }

  vm.$parent = parent;
  vm.$root = parent ? parent.$root : vm;
  vm.$children = [];
  vm.$refs = {};
  vm._watcher = null;
  vm._inactive = null;
  vm._directInactive = false;
  vm._isMounted = false;
  vm._isDestroyed = false;
  vm._isBeingDestroyed = false;
}

function lifecycleMixin(Vue) {
  Vue.prototype._update = function (vnode, hydrating) {
    var vm = this;
    var prevEl = vm.$el;
    var prevVnode = vm._vnode;
    var restoreActiveInstance = setActiveInstance(vm);
    vm._vnode = vnode; // Vue.prototype.__patch__ is injected in entry points
    // based on the rendering backend used.

    if (!prevVnode) {
      // initial render
      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false
      /* removeOnly */
      );
    } else {
      // updates
      vm.$el = vm.__patch__(prevVnode, vnode);
    }

    restoreActiveInstance(); // update __vue__ reference

    if (prevEl) {
      prevEl.__vue__ = null;
    }

    if (vm.$el) {
      vm.$el.__vue__ = vm;
    } // if parent is an HOC, update its $el as well


    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
      vm.$parent.$el = vm.$el;
    } // updated hook is called by the scheduler to ensure that children are
    // updated in a parent's updated hook.

  };

  Vue.prototype.$forceUpdate = function () {
    var vm = this;

    if (vm._watcher) {
      vm._watcher.update();
    }
  };

  Vue.prototype.$destroy = function () {
    var vm = this;

    if (vm._isBeingDestroyed) {
      return;
    }

    callHook(vm, 'beforeDestroy');
    vm._isBeingDestroyed = true; // remove self from parent

    var parent = vm.$parent;

    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
      remove(parent.$children, vm);
    } // teardown watchers


    if (vm._watcher) {
      vm._watcher.teardown();
    }

    var i = vm._watchers.length;

    while (i--) {
      vm._watchers[i].teardown();
    } // remove reference from data ob
    // frozen object may not have observer.


    if (vm._data.__ob__) {
      vm._data.__ob__.vmCount--;
    } // call the last hook...


    vm._isDestroyed = true; // invoke destroy hooks on current rendered tree

    vm.__patch__(vm._vnode, null); // fire destroyed hook


    callHook(vm, 'destroyed'); // turn off all instance listeners.

    vm.$off(); // remove __vue__ reference

    if (vm.$el) {
      vm.$el.__vue__ = null;
    } // release circular reference (#6759)


    if (vm.$vnode) {
      vm.$vnode.parent = null;
    }
  };
}

function mountComponent(vm, el, hydrating) {
  vm.$el = el;

  if (!vm.$options.render) {
    vm.$options.render = createEmptyVNode;

    if (process.env.NODE_ENV !== 'production') {
      /* istanbul ignore if */
      if (vm.$options.template && vm.$options.template.charAt(0) !== '#' || vm.$options.el || el) {
        warn('You are using the runtime-only build of Vue where the template ' + 'compiler is not available. Either pre-compile the templates into ' + 'render functions, or use the compiler-included build.', vm);
      } else {
        warn('Failed to mount component: template or render function not defined.', vm);
      }
    }
  }

  callHook(vm, 'beforeMount');
  var updateComponent;
  /* istanbul ignore if */

  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
    updateComponent = function updateComponent() {
      var name = vm._name;
      var id = vm._uid;
      var startTag = "vue-perf-start:" + id;
      var endTag = "vue-perf-end:" + id;
      mark(startTag);

      var vnode = vm._render();

      mark(endTag);
      measure("vue " + name + " render", startTag, endTag);
      mark(startTag);

      vm._update(vnode, hydrating);

      mark(endTag);
      measure("vue " + name + " patch", startTag, endTag);
    };
  } else {
    updateComponent = function updateComponent() {
      vm._update(vm._render(), hydrating);
    };
  } // we set this to vm._watcher inside the watcher's constructor
  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
  // component's mounted hook), which relies on vm._watcher being already defined


  new Watcher(vm, updateComponent, noop, {
    before: function before() {
      if (vm._isMounted && !vm._isDestroyed) {
        callHook(vm, 'beforeUpdate');
      }
    }
  }, true
  /* isRenderWatcher */
  );
  hydrating = false; // manually mounted instance, call mounted on self
  // mounted is called for render-created child components in its inserted hook

  if (vm.$vnode == null) {
    vm._isMounted = true;
    callHook(vm, 'mounted');
  }

  return vm;
}

function updateChildComponent(vm, propsData, listeners, parentVnode, renderChildren) {
  if (process.env.NODE_ENV !== 'production') {
    isUpdatingChildComponent = true;
  } // determine whether component has slot children
  // we need to do this before overwriting $options._renderChildren.
  // check if there are dynamic scopedSlots (hand-written or compiled but with
  // dynamic slot names). Static scoped slots compiled from template has the
  // "$stable" marker.


  var newScopedSlots = parentVnode.data.scopedSlots;
  var oldScopedSlots = vm.$scopedSlots;
  var hasDynamicScopedSlot = !!(newScopedSlots && !newScopedSlots.$stable || oldScopedSlots !== emptyObject && !oldScopedSlots.$stable || newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key); // Any static slot children from the parent may have changed during parent's
  // update. Dynamic scoped slots may also have changed. In such cases, a forced
  // update is necessary to ensure correctness.

  var needsForceUpdate = !!(renderChildren || // has new static slots
  vm.$options._renderChildren || // has old static slots
  hasDynamicScopedSlot);
  vm.$options._parentVnode = parentVnode;
  vm.$vnode = parentVnode; // update vm's placeholder node without re-render

  if (vm._vnode) {
    // update child tree's parent
    vm._vnode.parent = parentVnode;
  }

  vm.$options._renderChildren = renderChildren; // update $attrs and $listeners hash
  // these are also reactive so they may trigger child update if the child
  // used them during render

  vm.$attrs = parentVnode.data.attrs || emptyObject;
  vm.$listeners = listeners || emptyObject; // update props

  if (propsData && vm.$options.props) {
    toggleObserving(false);
    var props = vm._props;
    var propKeys = vm.$options._propKeys || [];

    for (var i = 0; i < propKeys.length; i++) {
      var key = propKeys[i];
      var propOptions = vm.$options.props; // wtf flow?

      props[key] = validateProp(key, propOptions, propsData, vm);
    }

    toggleObserving(true); // keep a copy of raw propsData

    vm.$options.propsData = propsData;
  } // update listeners


  listeners = listeners || emptyObject;
  var oldListeners = vm.$options._parentListeners;
  vm.$options._parentListeners = listeners;
  updateComponentListeners(vm, listeners, oldListeners); // resolve slots + force update if has children

  if (needsForceUpdate) {
    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
    vm.$forceUpdate();
  }

  if (process.env.NODE_ENV !== 'production') {
    isUpdatingChildComponent = false;
  }
}

function isInInactiveTree(vm) {
  while (vm && (vm = vm.$parent)) {
    if (vm._inactive) {
      return true;
    }
  }

  return false;
}

function activateChildComponent(vm, direct) {
  if (direct) {
    vm._directInactive = false;

    if (isInInactiveTree(vm)) {
      return;
    }
  } else if (vm._directInactive) {
    return;
  }

  if (vm._inactive || vm._inactive === null) {
    vm._inactive = false;

    for (var i = 0; i < vm.$children.length; i++) {
      activateChildComponent(vm.$children[i]);
    }

    callHook(vm, 'activated');
  }
}

function deactivateChildComponent(vm, direct) {
  if (direct) {
    vm._directInactive = true;

    if (isInInactiveTree(vm)) {
      return;
    }
  }

  if (!vm._inactive) {
    vm._inactive = true;

    for (var i = 0; i < vm.$children.length; i++) {
      deactivateChildComponent(vm.$children[i]);
    }

    callHook(vm, 'deactivated');
  }
}

function callHook(vm, hook) {
  // #7573 disable dep collection when invoking lifecycle hooks
  pushTarget();
  var handlers = vm.$options[hook];
  var info = hook + " hook";

  if (handlers) {
    for (var i = 0, j = handlers.length; i < j; i++) {
      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
    }
  }

  if (vm._hasHookEvent) {
    vm.$emit('hook:' + hook);
  }

  popTarget();
}
/*  */


var MAX_UPDATE_COUNT = 100;
var queue = [];
var activatedChildren = [];
var has = {};
var circular = {};
var waiting = false;
var flushing = false;
var index = 0;
/**
 * Reset the scheduler's state.
 */

function resetSchedulerState() {
  index = queue.length = activatedChildren.length = 0;
  has = {};

  if (process.env.NODE_ENV !== 'production') {
    circular = {};
  }

  waiting = flushing = false;
} // Async edge case #6566 requires saving the timestamp when event listeners are
// attached. However, calling performance.now() has a perf overhead especially
// if the page has thousands of event listeners. Instead, we take a timestamp
// every time the scheduler flushes and use that for all event listeners
// attached during that flush.


var currentFlushTimestamp = 0; // Async edge case fix requires storing an event listener's attach timestamp.

var getNow = Date.now; // Determine what event timestamp the browser is using. Annoyingly, the
// timestamp can either be hi-res (relative to page load) or low-res
// (relative to UNIX epoch), so in order to compare time we have to use the
// same timestamp type when saving the flush timestamp.
// All IE versions use low-res event timestamps, and have problematic clock
// implementations (#9632)

if (inBrowser && !isIE) {
  var performance = window.performance;

  if (performance && typeof performance.now === 'function' && getNow() > document.createEvent('Event').timeStamp) {
    // if the event timestamp, although evaluated AFTER the Date.now(), is
    // smaller than it, it means the event is using a hi-res timestamp,
    // and we need to use the hi-res version for event listener timestamps as
    // well.
    getNow = function getNow() {
      return performance.now();
    };
  }
}
/**
 * Flush both queues and run the watchers.
 */


function flushSchedulerQueue() {
  currentFlushTimestamp = getNow();
  flushing = true;
  var watcher, id; // Sort queue before flush.
  // This ensures that:
  // 1. Components are updated from parent to child. (because parent is always
  //    created before the child)
  // 2. A component's user watchers are run before its render watcher (because
  //    user watchers are created before the render watcher)
  // 3. If a component is destroyed during a parent component's watcher run,
  //    its watchers can be skipped.

  queue.sort(function (a, b) {
    return a.id - b.id;
  }); // do not cache length because more watchers might be pushed
  // as we run existing watchers

  for (index = 0; index < queue.length; index++) {
    watcher = queue[index];

    if (watcher.before) {
      watcher.before();
    }

    id = watcher.id;
    has[id] = null;
    watcher.run(); // in dev build, check and stop circular updates.

    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
      circular[id] = (circular[id] || 0) + 1;

      if (circular[id] > MAX_UPDATE_COUNT) {
        warn('You may have an infinite update loop ' + (watcher.user ? "in watcher with expression \"" + watcher.expression + "\"" : "in a component render function."), watcher.vm);
        break;
      }
    }
  } // keep copies of post queues before resetting state


  var activatedQueue = activatedChildren.slice();
  var updatedQueue = queue.slice();
  resetSchedulerState(); // call component updated and activated hooks

  callActivatedHooks(activatedQueue);
  callUpdatedHooks(updatedQueue); // devtool hook

  /* istanbul ignore if */

  if (devtools && config.devtools) {
    devtools.emit('flush');
  }
}

function callUpdatedHooks(queue) {
  var i = queue.length;

  while (i--) {
    var watcher = queue[i];
    var vm = watcher.vm;

    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
      callHook(vm, 'updated');
    }
  }
}
/**
 * Queue a kept-alive component that was activated during patch.
 * The queue will be processed after the entire tree has been patched.
 */


function queueActivatedComponent(vm) {
  // setting _inactive to false here so that a render function can
  // rely on checking whether it's in an inactive tree (e.g. router-view)
  vm._inactive = false;
  activatedChildren.push(vm);
}

function callActivatedHooks(queue) {
  for (var i = 0; i < queue.length; i++) {
    queue[i]._inactive = true;
    activateChildComponent(queue[i], true
    /* true */
    );
  }
}
/**
 * Push a watcher into the watcher queue.
 * Jobs with duplicate IDs will be skipped unless it's
 * pushed when the queue is being flushed.
 */


function queueWatcher(watcher) {
  var id = watcher.id;

  if (has[id] == null) {
    has[id] = true;

    if (!flushing) {
      queue.push(watcher);
    } else {
      // if already flushing, splice the watcher based on its id
      // if already past its id, it will be run next immediately.
      var i = queue.length - 1;

      while (i > index && queue[i].id > watcher.id) {
        i--;
      }

      queue.splice(i + 1, 0, watcher);
    } // queue the flush


    if (!waiting) {
      waiting = true;

      if (process.env.NODE_ENV !== 'production' && !config.async) {
        flushSchedulerQueue();
        return;
      }

      nextTick(flushSchedulerQueue);
    }
  }
}
/*  */


var uid$2 = 0;
/**
 * A watcher parses an expression, collects dependencies,
 * and fires callback when the expression value changes.
 * This is used for both the $watch() api and directives.
 */

var Watcher = function Watcher(vm, expOrFn, cb, options, isRenderWatcher) {
  this.vm = vm;

  if (isRenderWatcher) {
    vm._watcher = this;
  }

  vm._watchers.push(this); // options


  if (options) {
    this.deep = !!options.deep;
    this.user = !!options.user;
    this.lazy = !!options.lazy;
    this.sync = !!options.sync;
    this.before = options.before;
  } else {
    this.deep = this.user = this.lazy = this.sync = false;
  }

  this.cb = cb;
  this.id = ++uid$2; // uid for batching

  this.active = true;
  this.dirty = this.lazy; // for lazy watchers

  this.deps = [];
  this.newDeps = [];
  this.depIds = new _Set();
  this.newDepIds = new _Set();
  this.expression = process.env.NODE_ENV !== 'production' ? expOrFn.toString() : ''; // parse expression for getter

  if (typeof expOrFn === 'function') {
    this.getter = expOrFn;
  } else {
    this.getter = parsePath(expOrFn);

    if (!this.getter) {
      this.getter = noop;
      process.env.NODE_ENV !== 'production' && warn("Failed watching path: \"" + expOrFn + "\" " + 'Watcher only accepts simple dot-delimited paths. ' + 'For full control, use a function instead.', vm);
    }
  }

  this.value = this.lazy ? undefined : this.get();
};
/**
 * Evaluate the getter, and re-collect dependencies.
 */


Watcher.prototype.get = function get() {
  pushTarget(this);
  var value;
  var vm = this.vm;

  try {
    value = this.getter.call(vm, vm);
  } catch (e) {
    if (this.user) {
      handleError(e, vm, "getter for watcher \"" + this.expression + "\"");
    } else {
      throw e;
    }
  } finally {
    // "touch" every property so they are all tracked as
    // dependencies for deep watching
    if (this.deep) {
      traverse(value);
    }

    popTarget();
    this.cleanupDeps();
  }

  return value;
};
/**
 * Add a dependency to this directive.
 */


Watcher.prototype.addDep = function addDep(dep) {
  var id = dep.id;

  if (!this.newDepIds.has(id)) {
    this.newDepIds.add(id);
    this.newDeps.push(dep);

    if (!this.depIds.has(id)) {
      dep.addSub(this);
    }
  }
};
/**
 * Clean up for dependency collection.
 */


Watcher.prototype.cleanupDeps = function cleanupDeps() {
  var i = this.deps.length;

  while (i--) {
    var dep = this.deps[i];

    if (!this.newDepIds.has(dep.id)) {
      dep.removeSub(this);
    }
  }

  var tmp = this.depIds;
  this.depIds = this.newDepIds;
  this.newDepIds = tmp;
  this.newDepIds.clear();
  tmp = this.deps;
  this.deps = this.newDeps;
  this.newDeps = tmp;
  this.newDeps.length = 0;
};
/**
 * Subscriber interface.
 * Will be called when a dependency changes.
 */


Watcher.prototype.update = function update() {
  /* istanbul ignore else */
  if (this.lazy) {
    this.dirty = true;
  } else if (this.sync) {
    this.run();
  } else {
    queueWatcher(this);
  }
};
/**
 * Scheduler job interface.
 * Will be called by the scheduler.
 */


Watcher.prototype.run = function run() {
  if (this.active) {
    var value = this.get();

    if (value !== this.value || // Deep watchers and watchers on Object/Arrays should fire even
    // when the value is the same, because the value may
    // have mutated.
    isObject(value) || this.deep) {
      // set new value
      var oldValue = this.value;
      this.value = value;

      if (this.user) {
        try {
          this.cb.call(this.vm, value, oldValue);
        } catch (e) {
          handleError(e, this.vm, "callback for watcher \"" + this.expression + "\"");
        }
      } else {
        this.cb.call(this.vm, value, oldValue);
      }
    }
  }
};
/**
 * Evaluate the value of the watcher.
 * This only gets called for lazy watchers.
 */


Watcher.prototype.evaluate = function evaluate() {
  this.value = this.get();
  this.dirty = false;
};
/**
 * Depend on all deps collected by this watcher.
 */


Watcher.prototype.depend = function depend() {
  var i = this.deps.length;

  while (i--) {
    this.deps[i].depend();
  }
};
/**
 * Remove self from all dependencies' subscriber list.
 */


Watcher.prototype.teardown = function teardown() {
  if (this.active) {
    // remove self from vm's watcher list
    // this is a somewhat expensive operation so we skip it
    // if the vm is being destroyed.
    if (!this.vm._isBeingDestroyed) {
      remove(this.vm._watchers, this);
    }

    var i = this.deps.length;

    while (i--) {
      this.deps[i].removeSub(this);
    }

    this.active = false;
  }
};
/*  */


var sharedPropertyDefinition = {
  enumerable: true,
  configurable: true,
  get: noop,
  set: noop
};

function proxy(target, sourceKey, key) {
  sharedPropertyDefinition.get = function proxyGetter() {
    return this[sourceKey][key];
  };

  sharedPropertyDefinition.set = function proxySetter(val) {
    this[sourceKey][key] = val;
  };

  Object.defineProperty(target, key, sharedPropertyDefinition);
}

function initState(vm) {
  vm._watchers = [];
  var opts = vm.$options;

  if (opts.props) {
    initProps(vm, opts.props);
  }

  if (opts.methods) {
    initMethods(vm, opts.methods);
  }

  if (opts.data) {
    initData(vm);
  } else {
    observe(vm._data = {}, true
    /* asRootData */
    );
  }

  if (opts.computed) {
    initComputed(vm, opts.computed);
  }

  if (opts.watch && opts.watch !== nativeWatch) {
    initWatch(vm, opts.watch);
  }
}

function initProps(vm, propsOptions) {
  var propsData = vm.$options.propsData || {};
  var props = vm._props = {}; // cache prop keys so that future props updates can iterate using Array
  // instead of dynamic object key enumeration.

  var keys = vm.$options._propKeys = [];
  var isRoot = !vm.$parent; // root instance props should be converted

  if (!isRoot) {
    toggleObserving(false);
  }

  var loop = function loop(key) {
    keys.push(key);
    var value = validateProp(key, propsOptions, propsData, vm);
    /* istanbul ignore else */

    if (process.env.NODE_ENV !== 'production') {
      var hyphenatedKey = hyphenate(key);

      if (isReservedAttribute(hyphenatedKey) || config.isReservedAttr(hyphenatedKey)) {
        warn("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop.", vm);
      }

      defineReactive$$1(props, key, value, function () {
        if (!isRoot && !isUpdatingChildComponent) {
          warn("Avoid mutating a prop directly since the value will be " + "overwritten whenever the parent component re-renders. " + "Instead, use a data or computed property based on the prop's " + "value. Prop being mutated: \"" + key + "\"", vm);
        }
      });
    } else {
      defineReactive$$1(props, key, value);
    } // static props are already proxied on the component's prototype
    // during Vue.extend(). We only need to proxy props defined at
    // instantiation here.


    if (!(key in vm)) {
      proxy(vm, "_props", key);
    }
  };

  for (var key in propsOptions) {
    loop(key);
  }

  toggleObserving(true);
}

function initData(vm) {
  var data = vm.$options.data;
  data = vm._data = typeof data === 'function' ? getData(data, vm) : data || {};

  if (!isPlainObject(data)) {
    data = {};
    process.env.NODE_ENV !== 'production' && warn('data functions should return an object:\n' + 'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function', vm);
  } // proxy data on instance


  var keys = Object.keys(data);
  var props = vm.$options.props;
  var methods = vm.$options.methods;
  var i = keys.length;

  while (i--) {
    var key = keys[i];

    if (process.env.NODE_ENV !== 'production') {
      if (methods && hasOwn(methods, key)) {
        warn("Method \"" + key + "\" has already been defined as a data property.", vm);
      }
    }

    if (props && hasOwn(props, key)) {
      process.env.NODE_ENV !== 'production' && warn("The data property \"" + key + "\" is already declared as a prop. " + "Use prop default value instead.", vm);
    } else if (!isReserved(key)) {
      proxy(vm, "_data", key);
    }
  } // observe data


  observe(data, true
  /* asRootData */
  );
}

function getData(data, vm) {
  // #7573 disable dep collection when invoking data getters
  pushTarget();

  try {
    return data.call(vm, vm);
  } catch (e) {
    handleError(e, vm, "data()");
    return {};
  } finally {
    popTarget();
  }
}

var computedWatcherOptions = {
  lazy: true
};

function initComputed(vm, computed) {
  // $flow-disable-line
  var watchers = vm._computedWatchers = Object.create(null); // computed properties are just getters during SSR

  var isSSR = isServerRendering();

  for (var key in computed) {
    var userDef = computed[key];
    var getter = typeof userDef === 'function' ? userDef : userDef.get;

    if (process.env.NODE_ENV !== 'production' && getter == null) {
      warn("Getter is missing for computed property \"" + key + "\".", vm);
    }

    if (!isSSR) {
      // create internal watcher for the computed property.
      watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
    } // component-defined computed properties are already defined on the
    // component prototype. We only need to define computed properties defined
    // at instantiation here.


    if (!(key in vm)) {
      defineComputed(vm, key, userDef);
    } else if (process.env.NODE_ENV !== 'production') {
      if (key in vm.$data) {
        warn("The computed property \"" + key + "\" is already defined in data.", vm);
      } else if (vm.$options.props && key in vm.$options.props) {
        warn("The computed property \"" + key + "\" is already defined as a prop.", vm);
      }
    }
  }
}

function defineComputed(target, key, userDef) {
  var shouldCache = !isServerRendering();

  if (typeof userDef === 'function') {
    sharedPropertyDefinition.get = shouldCache ? createComputedGetter(key) : createGetterInvoker(userDef);
    sharedPropertyDefinition.set = noop;
  } else {
    sharedPropertyDefinition.get = userDef.get ? shouldCache && userDef.cache !== false ? createComputedGetter(key) : createGetterInvoker(userDef.get) : noop;
    sharedPropertyDefinition.set = userDef.set || noop;
  }

  if (process.env.NODE_ENV !== 'production' && sharedPropertyDefinition.set === noop) {
    sharedPropertyDefinition.set = function () {
      warn("Computed property \"" + key + "\" was assigned to but it has no setter.", this);
    };
  }

  Object.defineProperty(target, key, sharedPropertyDefinition);
}

function createComputedGetter(key) {
  return function computedGetter() {
    var watcher = this._computedWatchers && this._computedWatchers[key];

    if (watcher) {
      if (watcher.dirty) {
        watcher.evaluate();
      }

      if (Dep.target) {
        watcher.depend();
      }

      return watcher.value;
    }
  };
}

function createGetterInvoker(fn) {
  return function computedGetter() {
    return fn.call(this, this);
  };
}

function initMethods(vm, methods) {
  var props = vm.$options.props;

  for (var key in methods) {
    if (process.env.NODE_ENV !== 'production') {
      if (typeof methods[key] !== 'function') {
        warn("Method \"" + key + "\" has type \"" + _typeof(methods[key]) + "\" in the component definition. " + "Did you reference the function correctly?", vm);
      }

      if (props && hasOwn(props, key)) {
        warn("Method \"" + key + "\" has already been defined as a prop.", vm);
      }

      if (key in vm && isReserved(key)) {
        warn("Method \"" + key + "\" conflicts with an existing Vue instance method. " + "Avoid defining component methods that start with _ or $.");
      }
    }

    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
  }
}

function initWatch(vm, watch) {
  for (var key in watch) {
    var handler = watch[key];

    if (Array.isArray(handler)) {
      for (var i = 0; i < handler.length; i++) {
        createWatcher(vm, key, handler[i]);
      }
    } else {
      createWatcher(vm, key, handler);
    }
  }
}

function createWatcher(vm, expOrFn, handler, options) {
  if (isPlainObject(handler)) {
    options = handler;
    handler = handler.handler;
  }

  if (typeof handler === 'string') {
    handler = vm[handler];
  }

  return vm.$watch(expOrFn, handler, options);
}

function stateMixin(Vue) {
  // flow somehow has problems with directly declared definition object
  // when using Object.defineProperty, so we have to procedurally build up
  // the object here.
  var dataDef = {};

  dataDef.get = function () {
    return this._data;
  };

  var propsDef = {};

  propsDef.get = function () {
    return this._props;
  };

  if (process.env.NODE_ENV !== 'production') {
    dataDef.set = function () {
      warn('Avoid replacing instance root $data. ' + 'Use nested data properties instead.', this);
    };

    propsDef.set = function () {
      warn("$props is readonly.", this);
    };
  }

  Object.defineProperty(Vue.prototype, '$data', dataDef);
  Object.defineProperty(Vue.prototype, '$props', propsDef);
  Vue.prototype.$set = set;
  Vue.prototype.$delete = del;

  Vue.prototype.$watch = function (expOrFn, cb, options) {
    var vm = this;

    if (isPlainObject(cb)) {
      return createWatcher(vm, expOrFn, cb, options);
    }

    options = options || {};
    options.user = true;
    var watcher = new Watcher(vm, expOrFn, cb, options);

    if (options.immediate) {
      try {
        cb.call(vm, watcher.value);
      } catch (error) {
        handleError(error, vm, "callback for immediate watcher \"" + watcher.expression + "\"");
      }
    }

    return function unwatchFn() {
      watcher.teardown();
    };
  };
}
/*  */


var uid$3 = 0;

function initMixin(Vue) {
  Vue.prototype._init = function (options) {
    var vm = this; // a uid

    vm._uid = uid$3++;
    var startTag, endTag;
    /* istanbul ignore if */

    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
      startTag = "vue-perf-start:" + vm._uid;
      endTag = "vue-perf-end:" + vm._uid;
      mark(startTag);
    } // a flag to avoid this being observed


    vm._isVue = true; // merge options

    if (options && options._isComponent) {
      // optimize internal component instantiation
      // since dynamic options merging is pretty slow, and none of the
      // internal component options needs special treatment.
      initInternalComponent(vm, options);
    } else {
      vm.$options = mergeOptions(resolveConstructorOptions(vm.constructor), options || {}, vm);
    }
    /* istanbul ignore else */


    if (process.env.NODE_ENV !== 'production') {
      initProxy(vm);
    } else {
      vm._renderProxy = vm;
    } // expose real self


    vm._self = vm;
    initLifecycle(vm);
    initEvents(vm);
    initRender(vm);
    callHook(vm, 'beforeCreate');
    initInjections(vm); // resolve injections before data/props

    initState(vm);
    initProvide(vm); // resolve provide after data/props

    callHook(vm, 'created');
    /* istanbul ignore if */

    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
      vm._name = formatComponentName(vm, false);
      mark(endTag);
      measure("vue " + vm._name + " init", startTag, endTag);
    }

    if (vm.$options.el) {
      vm.$mount(vm.$options.el);
    }
  };
}

function initInternalComponent(vm, options) {
  var opts = vm.$options = Object.create(vm.constructor.options); // doing this because it's faster than dynamic enumeration.

  var parentVnode = options._parentVnode;
  opts.parent = options.parent;
  opts._parentVnode = parentVnode;
  var vnodeComponentOptions = parentVnode.componentOptions;
  opts.propsData = vnodeComponentOptions.propsData;
  opts._parentListeners = vnodeComponentOptions.listeners;
  opts._renderChildren = vnodeComponentOptions.children;
  opts._componentTag = vnodeComponentOptions.tag;

  if (options.render) {
    opts.render = options.render;
    opts.staticRenderFns = options.staticRenderFns;
  }
}

function resolveConstructorOptions(Ctor) {
  var options = Ctor.options;

  if (Ctor.super) {
    var superOptions = resolveConstructorOptions(Ctor.super);
    var cachedSuperOptions = Ctor.superOptions;

    if (superOptions !== cachedSuperOptions) {
      // super option changed,
      // need to resolve new options.
      Ctor.superOptions = superOptions; // check if there are any late-modified/attached options (#4976)

      var modifiedOptions = resolveModifiedOptions(Ctor); // update base extend options

      if (modifiedOptions) {
        extend(Ctor.extendOptions, modifiedOptions);
      }

      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);

      if (options.name) {
        options.components[options.name] = Ctor;
      }
    }
  }

  return options;
}

function resolveModifiedOptions(Ctor) {
  var modified;
  var latest = Ctor.options;
  var sealed = Ctor.sealedOptions;

  for (var key in latest) {
    if (latest[key] !== sealed[key]) {
      if (!modified) {
        modified = {};
      }

      modified[key] = latest[key];
    }
  }

  return modified;
}

function Vue(options) {
  if (process.env.NODE_ENV !== 'production' && !(this instanceof Vue)) {
    warn('Vue is a constructor and should be called with the `new` keyword');
  }

  this._init(options);
}

initMixin(Vue);
stateMixin(Vue);
eventsMixin(Vue);
lifecycleMixin(Vue);
renderMixin(Vue);
/*  */

function initUse(Vue) {
  Vue.use = function (plugin) {
    var installedPlugins = this._installedPlugins || (this._installedPlugins = []);

    if (installedPlugins.indexOf(plugin) > -1) {
      return this;
    } // additional parameters


    var args = toArray(arguments, 1);
    args.unshift(this);

    if (typeof plugin.install === 'function') {
      plugin.install.apply(plugin, args);
    } else if (typeof plugin === 'function') {
      plugin.apply(null, args);
    }

    installedPlugins.push(plugin);
    return this;
  };
}
/*  */


function initMixin$1(Vue) {
  Vue.mixin = function (mixin) {
    this.options = mergeOptions(this.options, mixin);
    return this;
  };
}
/*  */


function initExtend(Vue) {
  /**
   * Each instance constructor, including Vue, has a unique
   * cid. This enables us to create wrapped "child
   * constructors" for prototypal inheritance and cache them.
   */
  Vue.cid = 0;
  var cid = 1;
  /**
   * Class inheritance
   */

  Vue.extend = function (extendOptions) {
    extendOptions = extendOptions || {};
    var Super = this;
    var SuperId = Super.cid;
    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});

    if (cachedCtors[SuperId]) {
      return cachedCtors[SuperId];
    }

    var name = extendOptions.name || Super.options.name;

    if (process.env.NODE_ENV !== 'production' && name) {
      validateComponentName(name);
    }

    var Sub = function VueComponent(options) {
      this._init(options);
    };

    Sub.prototype = Object.create(Super.prototype);
    Sub.prototype.constructor = Sub;
    Sub.cid = cid++;
    Sub.options = mergeOptions(Super.options, extendOptions);
    Sub['super'] = Super; // For props and computed properties, we define the proxy getters on
    // the Vue instances at extension time, on the extended prototype. This
    // avoids Object.defineProperty calls for each instance created.

    if (Sub.options.props) {
      initProps$1(Sub);
    }

    if (Sub.options.computed) {
      initComputed$1(Sub);
    } // allow further extension/mixin/plugin usage


    Sub.extend = Super.extend;
    Sub.mixin = Super.mixin;
    Sub.use = Super.use; // create asset registers, so extended classes
    // can have their private assets too.

    ASSET_TYPES.forEach(function (type) {
      Sub[type] = Super[type];
    }); // enable recursive self-lookup

    if (name) {
      Sub.options.components[name] = Sub;
    } // keep a reference to the super options at extension time.
    // later at instantiation we can check if Super's options have
    // been updated.


    Sub.superOptions = Super.options;
    Sub.extendOptions = extendOptions;
    Sub.sealedOptions = extend({}, Sub.options); // cache constructor

    cachedCtors[SuperId] = Sub;
    return Sub;
  };
}

function initProps$1(Comp) {
  var props = Comp.options.props;

  for (var key in props) {
    proxy(Comp.prototype, "_props", key);
  }
}

function initComputed$1(Comp) {
  var computed = Comp.options.computed;

  for (var key in computed) {
    defineComputed(Comp.prototype, key, computed[key]);
  }
}
/*  */


function initAssetRegisters(Vue) {
  /**
   * Create asset registration methods.
   */
  ASSET_TYPES.forEach(function (type) {
    Vue[type] = function (id, definition) {
      if (!definition) {
        return this.options[type + 's'][id];
      } else {
        /* istanbul ignore if */
        if (process.env.NODE_ENV !== 'production' && type === 'component') {
          validateComponentName(id);
        }

        if (type === 'component' && isPlainObject(definition)) {
          definition.name = definition.name || id;
          definition = this.options._base.extend(definition);
        }

        if (type === 'directive' && typeof definition === 'function') {
          definition = {
            bind: definition,
            update: definition
          };
        }

        this.options[type + 's'][id] = definition;
        return definition;
      }
    };
  });
}
/*  */


function getComponentName(opts) {
  return opts && (opts.Ctor.options.name || opts.tag);
}

function matches(pattern, name) {
  if (Array.isArray(pattern)) {
    return pattern.indexOf(name) > -1;
  } else if (typeof pattern === 'string') {
    return pattern.split(',').indexOf(name) > -1;
  } else if (isRegExp(pattern)) {
    return pattern.test(name);
  }
  /* istanbul ignore next */


  return false;
}

function pruneCache(keepAliveInstance, filter) {
  var cache = keepAliveInstance.cache;
  var keys = keepAliveInstance.keys;
  var _vnode = keepAliveInstance._vnode;

  for (var key in cache) {
    var cachedNode = cache[key];

    if (cachedNode) {
      var name = getComponentName(cachedNode.componentOptions);

      if (name && !filter(name)) {
        pruneCacheEntry(cache, key, keys, _vnode);
      }
    }
  }
}

function pruneCacheEntry(cache, key, keys, current) {
  var cached$$1 = cache[key];

  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
    cached$$1.componentInstance.$destroy();
  }

  cache[key] = null;
  remove(keys, key);
}

var patternTypes = [String, RegExp, Array];
var KeepAlive = {
  name: 'keep-alive',
  abstract: true,
  props: {
    include: patternTypes,
    exclude: patternTypes,
    max: [String, Number]
  },
  created: function created() {
    this.cache = Object.create(null);
    this.keys = [];
  },
  destroyed: function destroyed() {
    for (var key in this.cache) {
      pruneCacheEntry(this.cache, key, this.keys);
    }
  },
  mounted: function mounted() {
    var this$1 = this;
    this.$watch('include', function (val) {
      pruneCache(this$1, function (name) {
        return matches(val, name);
      });
    });
    this.$watch('exclude', function (val) {
      pruneCache(this$1, function (name) {
        return !matches(val, name);
      });
    });
  },
  render: function render() {
    var slot = this.$slots.default;
    var vnode = getFirstComponentChild(slot);
    var componentOptions = vnode && vnode.componentOptions;

    if (componentOptions) {
      // check pattern
      var name = getComponentName(componentOptions);
      var ref = this;
      var include = ref.include;
      var exclude = ref.exclude;

      if ( // not included
      include && (!name || !matches(include, name)) || // excluded
      exclude && name && matches(exclude, name)) {
        return vnode;
      }

      var ref$1 = this;
      var cache = ref$1.cache;
      var keys = ref$1.keys;
      var key = vnode.key == null // same constructor may get registered as different local components
      // so cid alone is not enough (#3269)
      ? componentOptions.Ctor.cid + (componentOptions.tag ? "::" + componentOptions.tag : '') : vnode.key;

      if (cache[key]) {
        vnode.componentInstance = cache[key].componentInstance; // make current key freshest

        remove(keys, key);
        keys.push(key);
      } else {
        cache[key] = vnode;
        keys.push(key); // prune oldest entry

        if (this.max && keys.length > parseInt(this.max)) {
          pruneCacheEntry(cache, keys[0], keys, this._vnode);
        }
      }

      vnode.data.keepAlive = true;
    }

    return vnode || slot && slot[0];
  }
};
var builtInComponents = {
  KeepAlive: KeepAlive
};
/*  */

function initGlobalAPI(Vue) {
  // config
  var configDef = {};

  configDef.get = function () {
    return config;
  };

  if (process.env.NODE_ENV !== 'production') {
    configDef.set = function () {
      warn('Do not replace the Vue.config object, set individual fields instead.');
    };
  }

  Object.defineProperty(Vue, 'config', configDef); // exposed util methods.
  // NOTE: these are not considered part of the public API - avoid relying on
  // them unless you are aware of the risk.

  Vue.util = {
    warn: warn,
    extend: extend,
    mergeOptions: mergeOptions,
    defineReactive: defineReactive$$1
  };
  Vue.set = set;
  Vue.delete = del;
  Vue.nextTick = nextTick; // 2.6 explicit observable API

  Vue.observable = function (obj) {
    observe(obj);
    return obj;
  };

  Vue.options = Object.create(null);
  ASSET_TYPES.forEach(function (type) {
    Vue.options[type + 's'] = Object.create(null);
  }); // this is used to identify the "base" constructor to extend all plain-object
  // components with in Weex's multi-instance scenarios.

  Vue.options._base = Vue;
  extend(Vue.options.components, builtInComponents);
  initUse(Vue);
  initMixin$1(Vue);
  initExtend(Vue);
  initAssetRegisters(Vue);
}

initGlobalAPI(Vue);
Object.defineProperty(Vue.prototype, '$isServer', {
  get: isServerRendering
});
Object.defineProperty(Vue.prototype, '$ssrContext', {
  get: function get() {
    /* istanbul ignore next */
    return this.$vnode && this.$vnode.ssrContext;
  }
}); // expose FunctionalRenderContext for ssr runtime helper installation

Object.defineProperty(Vue, 'FunctionalRenderContext', {
  value: FunctionalRenderContext
});
Vue.version = '2.6.12';
/*  */
// these are reserved for web because they are directly compiled away
// during template compilation

var isReservedAttr = makeMap('style,class'); // attributes that should be using props for binding

var acceptValue = makeMap('input,textarea,option,select,progress');

var mustUseProp = function mustUseProp(tag, type, attr) {
  return attr === 'value' && acceptValue(tag) && type !== 'button' || attr === 'selected' && tag === 'option' || attr === 'checked' && tag === 'input' || attr === 'muted' && tag === 'video';
};

var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');

var convertEnumeratedValue = function convertEnumeratedValue(key, value) {
  return isFalsyAttrValue(value) || value === 'false' ? 'false' // allow arbitrary string value for contenteditable
  : key === 'contenteditable' && isValidContentEditableValue(value) ? value : 'true';
};

var isBooleanAttr = makeMap('allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + 'required,reversed,scoped,seamless,selected,sortable,translate,' + 'truespeed,typemustmatch,visible');
var xlinkNS = 'http://www.w3.org/1999/xlink';

var isXlink = function isXlink(name) {
  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink';
};

var getXlinkProp = function getXlinkProp(name) {
  return isXlink(name) ? name.slice(6, name.length) : '';
};

var isFalsyAttrValue = function isFalsyAttrValue(val) {
  return val == null || val === false;
};
/*  */


function genClassForVnode(vnode) {
  var data = vnode.data;
  var parentNode = vnode;
  var childNode = vnode;

  while (isDef(childNode.componentInstance)) {
    childNode = childNode.componentInstance._vnode;

    if (childNode && childNode.data) {
      data = mergeClassData(childNode.data, data);
    }
  }

  while (isDef(parentNode = parentNode.parent)) {
    if (parentNode && parentNode.data) {
      data = mergeClassData(data, parentNode.data);
    }
  }

  return renderClass(data.staticClass, data.class);
}

function mergeClassData(child, parent) {
  return {
    staticClass: concat(child.staticClass, parent.staticClass),
    class: isDef(child.class) ? [child.class, parent.class] : parent.class
  };
}

function renderClass(staticClass, dynamicClass) {
  if (isDef(staticClass) || isDef(dynamicClass)) {
    return concat(staticClass, stringifyClass(dynamicClass));
  }
  /* istanbul ignore next */


  return '';
}

function concat(a, b) {
  return a ? b ? a + ' ' + b : a : b || '';
}

function stringifyClass(value) {
  if (Array.isArray(value)) {
    return stringifyArray(value);
  }

  if (isObject(value)) {
    return stringifyObject(value);
  }

  if (typeof value === 'string') {
    return value;
  }
  /* istanbul ignore next */


  return '';
}

function stringifyArray(value) {
  var res = '';
  var stringified;

  for (var i = 0, l = value.length; i < l; i++) {
    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
      if (res) {
        res += ' ';
      }

      res += stringified;
    }
  }

  return res;
}

function stringifyObject(value) {
  var res = '';

  for (var key in value) {
    if (value[key]) {
      if (res) {
        res += ' ';
      }

      res += key;
    }
  }

  return res;
}
/*  */


var namespaceMap = {
  svg: 'http://www.w3.org/2000/svg',
  math: 'http://www.w3.org/1998/Math/MathML'
};
var isHTMLTag = makeMap('html,body,base,head,link,meta,style,title,' + 'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + 'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' + 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + 'embed,object,param,source,canvas,script,noscript,del,ins,' + 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + 'output,progress,select,textarea,' + 'details,dialog,menu,menuitem,summary,' + 'content,element,shadow,template,blockquote,iframe,tfoot'); // this map is intentionally selective, only covering SVG elements that may
// contain child elements.

var isSVG = makeMap('svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' + 'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' + 'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view', true);

var isReservedTag = function isReservedTag(tag) {
  return isHTMLTag(tag) || isSVG(tag);
};

function getTagNamespace(tag) {
  if (isSVG(tag)) {
    return 'svg';
  } // basic support for MathML
  // note it doesn't support other MathML elements being component roots


  if (tag === 'math') {
    return 'math';
  }
}

var unknownElementCache = Object.create(null);

function isUnknownElement(tag) {
  /* istanbul ignore if */
  if (!inBrowser) {
    return true;
  }

  if (isReservedTag(tag)) {
    return false;
  }

  tag = tag.toLowerCase();
  /* istanbul ignore if */

  if (unknownElementCache[tag] != null) {
    return unknownElementCache[tag];
  }

  var el = document.createElement(tag);

  if (tag.indexOf('-') > -1) {
    // http://stackoverflow.com/a/28210364/1070244
    return unknownElementCache[tag] = el.constructor === window.HTMLUnknownElement || el.constructor === window.HTMLElement;
  } else {
    return unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString());
  }
}

var isTextInputType = makeMap('text,number,password,search,email,tel,url');
/*  */

/**
 * Query an element selector if it's not an element already.
 */

function query(el) {
  if (typeof el === 'string') {
    var selected = document.querySelector(el);

    if (!selected) {
      process.env.NODE_ENV !== 'production' && warn('Cannot find element: ' + el);
      return document.createElement('div');
    }

    return selected;
  } else {
    return el;
  }
}
/*  */


function createElement$1(tagName, vnode) {
  var elm = document.createElement(tagName);

  if (tagName !== 'select') {
    return elm;
  } // false or null will remove the attribute but undefined will not


  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
    elm.setAttribute('multiple', 'multiple');
  }

  return elm;
}

function createElementNS(namespace, tagName) {
  return document.createElementNS(namespaceMap[namespace], tagName);
}

function createTextNode(text) {
  return document.createTextNode(text);
}

function createComment(text) {
  return document.createComment(text);
}

function insertBefore(parentNode, newNode, referenceNode) {
  parentNode.insertBefore(newNode, referenceNode);
}

function removeChild(node, child) {
  node.removeChild(child);
}

function appendChild(node, child) {
  node.appendChild(child);
}

function parentNode(node) {
  return node.parentNode;
}

function nextSibling(node) {
  return node.nextSibling;
}

function tagName(node) {
  return node.tagName;
}

function setTextContent(node, text) {
  node.textContent = text;
}

function setStyleScope(node, scopeId) {
  node.setAttribute(scopeId, '');
}

var nodeOps = /*#__PURE__*/Object.freeze({
  createElement: createElement$1,
  createElementNS: createElementNS,
  createTextNode: createTextNode,
  createComment: createComment,
  insertBefore: insertBefore,
  removeChild: removeChild,
  appendChild: appendChild,
  parentNode: parentNode,
  nextSibling: nextSibling,
  tagName: tagName,
  setTextContent: setTextContent,
  setStyleScope: setStyleScope
});
/*  */

var ref = {
  create: function create(_, vnode) {
    registerRef(vnode);
  },
  update: function update(oldVnode, vnode) {
    if (oldVnode.data.ref !== vnode.data.ref) {
      registerRef(oldVnode, true);
      registerRef(vnode);
    }
  },
  destroy: function destroy(vnode) {
    registerRef(vnode, true);
  }
};

function registerRef(vnode, isRemoval) {
  var key = vnode.data.ref;

  if (!isDef(key)) {
    return;
  }

  var vm = vnode.context;
  var ref = vnode.componentInstance || vnode.elm;
  var refs = vm.$refs;

  if (isRemoval) {
    if (Array.isArray(refs[key])) {
      remove(refs[key], ref);
    } else if (refs[key] === ref) {
      refs[key] = undefined;
    }
  } else {
    if (vnode.data.refInFor) {
      if (!Array.isArray(refs[key])) {
        refs[key] = [ref];
      } else if (refs[key].indexOf(ref) < 0) {
        // $flow-disable-line
        refs[key].push(ref);
      }
    } else {
      refs[key] = ref;
    }
  }
}
/**
 * Virtual DOM patching algorithm based on Snabbdom by
 * Simon Friis Vindum (@paldepind)
 * Licensed under the MIT License
 * https://github.com/paldepind/snabbdom/blob/master/LICENSE
 *
 * modified by Evan You (@yyx990803)
 *
 * Not type-checking this because this file is perf-critical and the cost
 * of making flow understand it is not worth it.
 */


var emptyNode = new VNode('', {}, []);
var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];

function sameVnode(a, b) {
  return a.key === b.key && (a.tag === b.tag && a.isComment === b.isComment && isDef(a.data) === isDef(b.data) && sameInputType(a, b) || isTrue(a.isAsyncPlaceholder) && a.asyncFactory === b.asyncFactory && isUndef(b.asyncFactory.error));
}

function sameInputType(a, b) {
  if (a.tag !== 'input') {
    return true;
  }

  var i;
  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB);
}

function createKeyToOldIdx(children, beginIdx, endIdx) {
  var i, key;
  var map = {};

  for (i = beginIdx; i <= endIdx; ++i) {
    key = children[i].key;

    if (isDef(key)) {
      map[key] = i;
    }
  }

  return map;
}

function createPatchFunction(backend) {
  var i, j;
  var cbs = {};
  var modules = backend.modules;
  var nodeOps = backend.nodeOps;

  for (i = 0; i < hooks.length; ++i) {
    cbs[hooks[i]] = [];

    for (j = 0; j < modules.length; ++j) {
      if (isDef(modules[j][hooks[i]])) {
        cbs[hooks[i]].push(modules[j][hooks[i]]);
      }
    }
  }

  function emptyNodeAt(elm) {
    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm);
  }

  function createRmCb(childElm, listeners) {
    function remove$$1() {
      if (--remove$$1.listeners === 0) {
        removeNode(childElm);
      }
    }

    remove$$1.listeners = listeners;
    return remove$$1;
  }

  function removeNode(el) {
    var parent = nodeOps.parentNode(el); // element may have already been removed due to v-html / v-text

    if (isDef(parent)) {
      nodeOps.removeChild(parent, el);
    }
  }

  function isUnknownElement$$1(vnode, inVPre) {
    return !inVPre && !vnode.ns && !(config.ignoredElements.length && config.ignoredElements.some(function (ignore) {
      return isRegExp(ignore) ? ignore.test(vnode.tag) : ignore === vnode.tag;
    })) && config.isUnknownElement(vnode.tag);
  }

  var creatingElmInVPre = 0;

  function createElm(vnode, insertedVnodeQueue, parentElm, refElm, nested, ownerArray, index) {
    if (isDef(vnode.elm) && isDef(ownerArray)) {
      // This vnode was used in a previous render!
      // now it's used as a new node, overwriting its elm would cause
      // potential patch errors down the road when it's used as an insertion
      // reference node. Instead, we clone the node on-demand before creating
      // associated DOM element for it.
      vnode = ownerArray[index] = cloneVNode(vnode);
    }

    vnode.isRootInsert = !nested; // for transition enter check

    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
      return;
    }

    var data = vnode.data;
    var children = vnode.children;
    var tag = vnode.tag;

    if (isDef(tag)) {
      if (process.env.NODE_ENV !== 'production') {
        if (data && data.pre) {
          creatingElmInVPre++;
        }

        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
          warn('Unknown custom element: <' + tag + '> - did you ' + 'register the component correctly? For recursive components, ' + 'make sure to provide the "name" option.', vnode.context);
        }
      }

      vnode.elm = vnode.ns ? nodeOps.createElementNS(vnode.ns, tag) : nodeOps.createElement(tag, vnode);
      setScope(vnode);
      /* istanbul ignore if */

      {
        createChildren(vnode, children, insertedVnodeQueue);

        if (isDef(data)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
        }

        insert(parentElm, vnode.elm, refElm);
      }

      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
        creatingElmInVPre--;
      }
    } else if (isTrue(vnode.isComment)) {
      vnode.elm = nodeOps.createComment(vnode.text);
      insert(parentElm, vnode.elm, refElm);
    } else {
      vnode.elm = nodeOps.createTextNode(vnode.text);
      insert(parentElm, vnode.elm, refElm);
    }
  }

  function createComponent(vnode, insertedVnodeQueue, parentElm, refElm) {
    var i = vnode.data;

    if (isDef(i)) {
      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;

      if (isDef(i = i.hook) && isDef(i = i.init)) {
        i(vnode, false
        /* hydrating */
        );
      } // after calling the init hook, if the vnode is a child component
      // it should've created a child instance and mounted it. the child
      // component also has set the placeholder vnode's elm.
      // in that case we can just return the element and be done.


      if (isDef(vnode.componentInstance)) {
        initComponent(vnode, insertedVnodeQueue);
        insert(parentElm, vnode.elm, refElm);

        if (isTrue(isReactivated)) {
          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
        }

        return true;
      }
    }
  }

  function initComponent(vnode, insertedVnodeQueue) {
    if (isDef(vnode.data.pendingInsert)) {
      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
      vnode.data.pendingInsert = null;
    }

    vnode.elm = vnode.componentInstance.$el;

    if (isPatchable(vnode)) {
      invokeCreateHooks(vnode, insertedVnodeQueue);
      setScope(vnode);
    } else {
      // empty component root.
      // skip all element-related modules except for ref (#3455)
      registerRef(vnode); // make sure to invoke the insert hook

      insertedVnodeQueue.push(vnode);
    }
  }

  function reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm) {
    var i; // hack for #4339: a reactivated component with inner transition
    // does not trigger because the inner node's created hooks are not called
    // again. It's not ideal to involve module-specific logic in here but
    // there doesn't seem to be a better way to do it.

    var innerNode = vnode;

    while (innerNode.componentInstance) {
      innerNode = innerNode.componentInstance._vnode;

      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
        for (i = 0; i < cbs.activate.length; ++i) {
          cbs.activate[i](emptyNode, innerNode);
        }

        insertedVnodeQueue.push(innerNode);
        break;
      }
    } // unlike a newly created component,
    // a reactivated keep-alive component doesn't insert itself


    insert(parentElm, vnode.elm, refElm);
  }

  function insert(parent, elm, ref$$1) {
    if (isDef(parent)) {
      if (isDef(ref$$1)) {
        if (nodeOps.parentNode(ref$$1) === parent) {
          nodeOps.insertBefore(parent, elm, ref$$1);
        }
      } else {
        nodeOps.appendChild(parent, elm);
      }
    }
  }

  function createChildren(vnode, children, insertedVnodeQueue) {
    if (Array.isArray(children)) {
      if (process.env.NODE_ENV !== 'production') {
        checkDuplicateKeys(children);
      }

      for (var i = 0; i < children.length; ++i) {
        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
      }
    } else if (isPrimitive(vnode.text)) {
      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
    }
  }

  function isPatchable(vnode) {
    while (vnode.componentInstance) {
      vnode = vnode.componentInstance._vnode;
    }

    return isDef(vnode.tag);
  }

  function invokeCreateHooks(vnode, insertedVnodeQueue) {
    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
      cbs.create[i$1](emptyNode, vnode);
    }

    i = vnode.data.hook; // Reuse variable

    if (isDef(i)) {
      if (isDef(i.create)) {
        i.create(emptyNode, vnode);
      }

      if (isDef(i.insert)) {
        insertedVnodeQueue.push(vnode);
      }
    }
  } // set scope id attribute for scoped CSS.
  // this is implemented as a special case to avoid the overhead
  // of going through the normal attribute patching process.


  function setScope(vnode) {
    var i;

    if (isDef(i = vnode.fnScopeId)) {
      nodeOps.setStyleScope(vnode.elm, i);
    } else {
      var ancestor = vnode;

      while (ancestor) {
        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
          nodeOps.setStyleScope(vnode.elm, i);
        }

        ancestor = ancestor.parent;
      }
    } // for slot content they should also get the scopeId from the host instance.


    if (isDef(i = activeInstance) && i !== vnode.context && i !== vnode.fnContext && isDef(i = i.$options._scopeId)) {
      nodeOps.setStyleScope(vnode.elm, i);
    }
  }

  function addVnodes(parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
    for (; startIdx <= endIdx; ++startIdx) {
      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
    }
  }

  function invokeDestroyHook(vnode) {
    var i, j;
    var data = vnode.data;

    if (isDef(data)) {
      if (isDef(i = data.hook) && isDef(i = i.destroy)) {
        i(vnode);
      }

      for (i = 0; i < cbs.destroy.length; ++i) {
        cbs.destroy[i](vnode);
      }
    }

    if (isDef(i = vnode.children)) {
      for (j = 0; j < vnode.children.length; ++j) {
        invokeDestroyHook(vnode.children[j]);
      }
    }
  }

  function removeVnodes(vnodes, startIdx, endIdx) {
    for (; startIdx <= endIdx; ++startIdx) {
      var ch = vnodes[startIdx];

      if (isDef(ch)) {
        if (isDef(ch.tag)) {
          removeAndInvokeRemoveHook(ch);
          invokeDestroyHook(ch);
        } else {
          // Text node
          removeNode(ch.elm);
        }
      }
    }
  }

  function removeAndInvokeRemoveHook(vnode, rm) {
    if (isDef(rm) || isDef(vnode.data)) {
      var i;
      var listeners = cbs.remove.length + 1;

      if (isDef(rm)) {
        // we have a recursively passed down rm callback
        // increase the listeners count
        rm.listeners += listeners;
      } else {
        // directly removing
        rm = createRmCb(vnode.elm, listeners);
      } // recursively invoke hooks on child component root node


      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
        removeAndInvokeRemoveHook(i, rm);
      }

      for (i = 0; i < cbs.remove.length; ++i) {
        cbs.remove[i](vnode, rm);
      }

      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
        i(vnode, rm);
      } else {
        rm();
      }
    } else {
      removeNode(vnode.elm);
    }
  }

  function updateChildren(parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
    var oldStartIdx = 0;
    var newStartIdx = 0;
    var oldEndIdx = oldCh.length - 1;
    var oldStartVnode = oldCh[0];
    var oldEndVnode = oldCh[oldEndIdx];
    var newEndIdx = newCh.length - 1;
    var newStartVnode = newCh[0];
    var newEndVnode = newCh[newEndIdx];
    var oldKeyToIdx, idxInOld, vnodeToMove, refElm; // removeOnly is a special flag used only by <transition-group>
    // to ensure removed elements stay in correct relative positions
    // during leaving transitions

    var canMove = !removeOnly;

    if (process.env.NODE_ENV !== 'production') {
      checkDuplicateKeys(newCh);
    }

    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
      if (isUndef(oldStartVnode)) {
        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
      } else if (isUndef(oldEndVnode)) {
        oldEndVnode = oldCh[--oldEndIdx];
      } else if (sameVnode(oldStartVnode, newStartVnode)) {
        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
        oldStartVnode = oldCh[++oldStartIdx];
        newStartVnode = newCh[++newStartIdx];
      } else if (sameVnode(oldEndVnode, newEndVnode)) {
        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
        oldEndVnode = oldCh[--oldEndIdx];
        newEndVnode = newCh[--newEndIdx];
      } else if (sameVnode(oldStartVnode, newEndVnode)) {
        // Vnode moved right
        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
        oldStartVnode = oldCh[++oldStartIdx];
        newEndVnode = newCh[--newEndIdx];
      } else if (sameVnode(oldEndVnode, newStartVnode)) {
        // Vnode moved left
        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
        oldEndVnode = oldCh[--oldEndIdx];
        newStartVnode = newCh[++newStartIdx];
      } else {
        if (isUndef(oldKeyToIdx)) {
          oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
        }

        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);

        if (isUndef(idxInOld)) {
          // New element
          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
        } else {
          vnodeToMove = oldCh[idxInOld];

          if (sameVnode(vnodeToMove, newStartVnode)) {
            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
            oldCh[idxInOld] = undefined;
            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
          } else {
            // same key but different element. treat as new element
            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
          }
        }

        newStartVnode = newCh[++newStartIdx];
      }
    }

    if (oldStartIdx > oldEndIdx) {
      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
    } else if (newStartIdx > newEndIdx) {
      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
    }
  }

  function checkDuplicateKeys(children) {
    var seenKeys = {};

    for (var i = 0; i < children.length; i++) {
      var vnode = children[i];
      var key = vnode.key;

      if (isDef(key)) {
        if (seenKeys[key]) {
          warn("Duplicate keys detected: '" + key + "'. This may cause an update error.", vnode.context);
        } else {
          seenKeys[key] = true;
        }
      }
    }
  }

  function findIdxInOld(node, oldCh, start, end) {
    for (var i = start; i < end; i++) {
      var c = oldCh[i];

      if (isDef(c) && sameVnode(node, c)) {
        return i;
      }
    }
  }

  function patchVnode(oldVnode, vnode, insertedVnodeQueue, ownerArray, index, removeOnly) {
    if (oldVnode === vnode) {
      return;
    }

    if (isDef(vnode.elm) && isDef(ownerArray)) {
      // clone reused vnode
      vnode = ownerArray[index] = cloneVNode(vnode);
    }

    var elm = vnode.elm = oldVnode.elm;

    if (isTrue(oldVnode.isAsyncPlaceholder)) {
      if (isDef(vnode.asyncFactory.resolved)) {
        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
      } else {
        vnode.isAsyncPlaceholder = true;
      }

      return;
    } // reuse element for static trees.
    // note we only do this if the vnode is cloned -
    // if the new node is not cloned it means the render functions have been
    // reset by the hot-reload-api and we need to do a proper re-render.


    if (isTrue(vnode.isStatic) && isTrue(oldVnode.isStatic) && vnode.key === oldVnode.key && (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))) {
      vnode.componentInstance = oldVnode.componentInstance;
      return;
    }

    var i;
    var data = vnode.data;

    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
      i(oldVnode, vnode);
    }

    var oldCh = oldVnode.children;
    var ch = vnode.children;

    if (isDef(data) && isPatchable(vnode)) {
      for (i = 0; i < cbs.update.length; ++i) {
        cbs.update[i](oldVnode, vnode);
      }

      if (isDef(i = data.hook) && isDef(i = i.update)) {
        i(oldVnode, vnode);
      }
    }

    if (isUndef(vnode.text)) {
      if (isDef(oldCh) && isDef(ch)) {
        if (oldCh !== ch) {
          updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
        }
      } else if (isDef(ch)) {
        if (process.env.NODE_ENV !== 'production') {
          checkDuplicateKeys(ch);
        }

        if (isDef(oldVnode.text)) {
          nodeOps.setTextContent(elm, '');
        }

        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
      } else if (isDef(oldCh)) {
        removeVnodes(oldCh, 0, oldCh.length - 1);
      } else if (isDef(oldVnode.text)) {
        nodeOps.setTextContent(elm, '');
      }
    } else if (oldVnode.text !== vnode.text) {
      nodeOps.setTextContent(elm, vnode.text);
    }

    if (isDef(data)) {
      if (isDef(i = data.hook) && isDef(i = i.postpatch)) {
        i(oldVnode, vnode);
      }
    }
  }

  function invokeInsertHook(vnode, queue, initial) {
    // delay insert hooks for component root nodes, invoke them after the
    // element is really inserted
    if (isTrue(initial) && isDef(vnode.parent)) {
      vnode.parent.data.pendingInsert = queue;
    } else {
      for (var i = 0; i < queue.length; ++i) {
        queue[i].data.hook.insert(queue[i]);
      }
    }
  }

  var hydrationBailed = false; // list of modules that can skip create hook during hydration because they
  // are already rendered on the client or has no need for initialization
  // Note: style is excluded because it relies on initial clone for future
  // deep updates (#7063).

  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key'); // Note: this is a browser-only function so we can assume elms are DOM nodes.

  function hydrate(elm, vnode, insertedVnodeQueue, inVPre) {
    var i;
    var tag = vnode.tag;
    var data = vnode.data;
    var children = vnode.children;
    inVPre = inVPre || data && data.pre;
    vnode.elm = elm;

    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
      vnode.isAsyncPlaceholder = true;
      return true;
    } // assert node match


    if (process.env.NODE_ENV !== 'production') {
      if (!assertNodeMatch(elm, vnode, inVPre)) {
        return false;
      }
    }

    if (isDef(data)) {
      if (isDef(i = data.hook) && isDef(i = i.init)) {
        i(vnode, true
        /* hydrating */
        );
      }

      if (isDef(i = vnode.componentInstance)) {
        // child component. it should have hydrated its own tree.
        initComponent(vnode, insertedVnodeQueue);
        return true;
      }
    }

    if (isDef(tag)) {
      if (isDef(children)) {
        // empty element, allow client to pick up and populate children
        if (!elm.hasChildNodes()) {
          createChildren(vnode, children, insertedVnodeQueue);
        } else {
          // v-html and domProps: innerHTML
          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
            if (i !== elm.innerHTML) {
              /* istanbul ignore if */
              if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined' && !hydrationBailed) {
                hydrationBailed = true;
                console.warn('Parent: ', elm);
                console.warn('server innerHTML: ', i);
                console.warn('client innerHTML: ', elm.innerHTML);
              }

              return false;
            }
          } else {
            // iterate and compare children lists
            var childrenMatch = true;
            var childNode = elm.firstChild;

            for (var i$1 = 0; i$1 < children.length; i$1++) {
              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                childrenMatch = false;
                break;
              }

              childNode = childNode.nextSibling;
            } // if childNode is not null, it means the actual childNodes list is
            // longer than the virtual children list.


            if (!childrenMatch || childNode) {
              /* istanbul ignore if */
              if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined' && !hydrationBailed) {
                hydrationBailed = true;
                console.warn('Parent: ', elm);
                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
              }

              return false;
            }
          }
        }
      }

      if (isDef(data)) {
        var fullInvoke = false;

        for (var key in data) {
          if (!isRenderedModule(key)) {
            fullInvoke = true;
            invokeCreateHooks(vnode, insertedVnodeQueue);
            break;
          }
        }

        if (!fullInvoke && data['class']) {
          // ensure collecting deps for deep class bindings for future updates
          traverse(data['class']);
        }
      }
    } else if (elm.data !== vnode.text) {
      elm.data = vnode.text;
    }

    return true;
  }

  function assertNodeMatch(node, vnode, inVPre) {
    if (isDef(vnode.tag)) {
      return vnode.tag.indexOf('vue-component') === 0 || !isUnknownElement$$1(vnode, inVPre) && vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase());
    } else {
      return node.nodeType === (vnode.isComment ? 8 : 3);
    }
  }

  return function patch(oldVnode, vnode, hydrating, removeOnly) {
    if (isUndef(vnode)) {
      if (isDef(oldVnode)) {
        invokeDestroyHook(oldVnode);
      }

      return;
    }

    var isInitialPatch = false;
    var insertedVnodeQueue = [];

    if (isUndef(oldVnode)) {
      // empty mount (likely as component), create new root element
      isInitialPatch = true;
      createElm(vnode, insertedVnodeQueue);
    } else {
      var isRealElement = isDef(oldVnode.nodeType);

      if (!isRealElement && sameVnode(oldVnode, vnode)) {
        // patch existing root node
        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
      } else {
        if (isRealElement) {
          // mounting to a real element
          // check if this is server-rendered content and if we can perform
          // a successful hydration.
          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
            oldVnode.removeAttribute(SSR_ATTR);
            hydrating = true;
          }

          if (isTrue(hydrating)) {
            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
              invokeInsertHook(vnode, insertedVnodeQueue, true);
              return oldVnode;
            } else if (process.env.NODE_ENV !== 'production') {
              warn('The client-side rendered virtual DOM tree is not matching ' + 'server-rendered content. This is likely caused by incorrect ' + 'HTML markup, for example nesting block-level elements inside ' + '<p>, or missing <tbody>. Bailing hydration and performing ' + 'full client-side render.');
            }
          } // either not server-rendered, or hydration failed.
          // create an empty node and replace it


          oldVnode = emptyNodeAt(oldVnode);
        } // replacing existing element


        var oldElm = oldVnode.elm;
        var parentElm = nodeOps.parentNode(oldElm); // create new node

        createElm(vnode, insertedVnodeQueue, // extremely rare edge case: do not insert if old element is in a
        // leaving transition. Only happens when combining transition +
        // keep-alive + HOCs. (#4590)
        oldElm._leaveCb ? null : parentElm, nodeOps.nextSibling(oldElm)); // update parent placeholder node element, recursively

        if (isDef(vnode.parent)) {
          var ancestor = vnode.parent;
          var patchable = isPatchable(vnode);

          while (ancestor) {
            for (var i = 0; i < cbs.destroy.length; ++i) {
              cbs.destroy[i](ancestor);
            }

            ancestor.elm = vnode.elm;

            if (patchable) {
              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
                cbs.create[i$1](emptyNode, ancestor);
              } // #6513
              // invoke insert hooks that may have been merged by create hooks.
              // e.g. for directives that uses the "inserted" hook.


              var insert = ancestor.data.hook.insert;

              if (insert.merged) {
                // start at index 1 to avoid re-invoking component mounted hook
                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
                  insert.fns[i$2]();
                }
              }
            } else {
              registerRef(ancestor);
            }

            ancestor = ancestor.parent;
          }
        } // destroy old node


        if (isDef(parentElm)) {
          removeVnodes([oldVnode], 0, 0);
        } else if (isDef(oldVnode.tag)) {
          invokeDestroyHook(oldVnode);
        }
      }
    }

    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
    return vnode.elm;
  };
}
/*  */


var directives = {
  create: updateDirectives,
  update: updateDirectives,
  destroy: function unbindDirectives(vnode) {
    updateDirectives(vnode, emptyNode);
  }
};

function updateDirectives(oldVnode, vnode) {
  if (oldVnode.data.directives || vnode.data.directives) {
    _update(oldVnode, vnode);
  }
}

function _update(oldVnode, vnode) {
  var isCreate = oldVnode === emptyNode;
  var isDestroy = vnode === emptyNode;
  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
  var dirsWithInsert = [];
  var dirsWithPostpatch = [];
  var key, oldDir, dir;

  for (key in newDirs) {
    oldDir = oldDirs[key];
    dir = newDirs[key];

    if (!oldDir) {
      // new directive, bind
      callHook$1(dir, 'bind', vnode, oldVnode);

      if (dir.def && dir.def.inserted) {
        dirsWithInsert.push(dir);
      }
    } else {
      // existing directive, update
      dir.oldValue = oldDir.value;
      dir.oldArg = oldDir.arg;
      callHook$1(dir, 'update', vnode, oldVnode);

      if (dir.def && dir.def.componentUpdated) {
        dirsWithPostpatch.push(dir);
      }
    }
  }

  if (dirsWithInsert.length) {
    var callInsert = function callInsert() {
      for (var i = 0; i < dirsWithInsert.length; i++) {
        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
      }
    };

    if (isCreate) {
      mergeVNodeHook(vnode, 'insert', callInsert);
    } else {
      callInsert();
    }
  }

  if (dirsWithPostpatch.length) {
    mergeVNodeHook(vnode, 'postpatch', function () {
      for (var i = 0; i < dirsWithPostpatch.length; i++) {
        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
      }
    });
  }

  if (!isCreate) {
    for (key in oldDirs) {
      if (!newDirs[key]) {
        // no longer present, unbind
        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
      }
    }
  }
}

var emptyModifiers = Object.create(null);

function normalizeDirectives$1(dirs, vm) {
  var res = Object.create(null);

  if (!dirs) {
    // $flow-disable-line
    return res;
  }

  var i, dir;

  for (i = 0; i < dirs.length; i++) {
    dir = dirs[i];

    if (!dir.modifiers) {
      // $flow-disable-line
      dir.modifiers = emptyModifiers;
    }

    res[getRawDirName(dir)] = dir;
    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
  } // $flow-disable-line


  return res;
}

function getRawDirName(dir) {
  return dir.rawName || dir.name + "." + Object.keys(dir.modifiers || {}).join('.');
}

function callHook$1(dir, hook, vnode, oldVnode, isDestroy) {
  var fn = dir.def && dir.def[hook];

  if (fn) {
    try {
      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
    } catch (e) {
      handleError(e, vnode.context, "directive " + dir.name + " " + hook + " hook");
    }
  }
}

var baseModules = [ref, directives];
/*  */

function updateAttrs(oldVnode, vnode) {
  var opts = vnode.componentOptions;

  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
    return;
  }

  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
    return;
  }

  var key, cur, old;
  var elm = vnode.elm;
  var oldAttrs = oldVnode.data.attrs || {};
  var attrs = vnode.data.attrs || {}; // clone observed objects, as the user probably wants to mutate it

  if (isDef(attrs.__ob__)) {
    attrs = vnode.data.attrs = extend({}, attrs);
  }

  for (key in attrs) {
    cur = attrs[key];
    old = oldAttrs[key];

    if (old !== cur) {
      setAttr(elm, key, cur);
    }
  } // #4391: in IE9, setting type can reset value for input[type=radio]
  // #6666: IE/Edge forces progress value down to 1 before setting a max

  /* istanbul ignore if */


  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
    setAttr(elm, 'value', attrs.value);
  }

  for (key in oldAttrs) {
    if (isUndef(attrs[key])) {
      if (isXlink(key)) {
        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
      } else if (!isEnumeratedAttr(key)) {
        elm.removeAttribute(key);
      }
    }
  }
}

function setAttr(el, key, value) {
  if (el.tagName.indexOf('-') > -1) {
    baseSetAttr(el, key, value);
  } else if (isBooleanAttr(key)) {
    // set attribute for blank value
    // e.g. <option disabled>Select one</option>
    if (isFalsyAttrValue(value)) {
      el.removeAttribute(key);
    } else {
      // technically allowfullscreen is a boolean attribute for <iframe>,
      // but Flash expects a value of "true" when used on <embed> tag
      value = key === 'allowfullscreen' && el.tagName === 'EMBED' ? 'true' : key;
      el.setAttribute(key, value);
    }
  } else if (isEnumeratedAttr(key)) {
    el.setAttribute(key, convertEnumeratedValue(key, value));
  } else if (isXlink(key)) {
    if (isFalsyAttrValue(value)) {
      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
    } else {
      el.setAttributeNS(xlinkNS, key, value);
    }
  } else {
    baseSetAttr(el, key, value);
  }
}

function baseSetAttr(el, key, value) {
  if (isFalsyAttrValue(value)) {
    el.removeAttribute(key);
  } else {
    // #7138: IE10 & 11 fires input event when setting placeholder on
    // <textarea>... block the first input event and remove the blocker
    // immediately.

    /* istanbul ignore if */
    if (isIE && !isIE9 && el.tagName === 'TEXTAREA' && key === 'placeholder' && value !== '' && !el.__ieph) {
      var blocker = function blocker(e) {
        e.stopImmediatePropagation();
        el.removeEventListener('input', blocker);
      };

      el.addEventListener('input', blocker); // $flow-disable-line

      el.__ieph = true;
      /* IE placeholder patched */
    }

    el.setAttribute(key, value);
  }
}

var attrs = {
  create: updateAttrs,
  update: updateAttrs
};
/*  */

function updateClass(oldVnode, vnode) {
  var el = vnode.elm;
  var data = vnode.data;
  var oldData = oldVnode.data;

  if (isUndef(data.staticClass) && isUndef(data.class) && (isUndef(oldData) || isUndef(oldData.staticClass) && isUndef(oldData.class))) {
    return;
  }

  var cls = genClassForVnode(vnode); // handle transition classes

  var transitionClass = el._transitionClasses;

  if (isDef(transitionClass)) {
    cls = concat(cls, stringifyClass(transitionClass));
  } // set the class


  if (cls !== el._prevClass) {
    el.setAttribute('class', cls);
    el._prevClass = cls;
  }
}

var klass = {
  create: updateClass,
  update: updateClass
};
/*  */

/*  */

/*  */

/*  */
// in some cases, the event used has to be determined at runtime
// so we used some reserved tokens during compile.

var RANGE_TOKEN = '__r';
var CHECKBOX_RADIO_TOKEN = '__c';
/*  */
// normalize v-model event tokens that can only be determined at runtime.
// it's important to place the event as the first in the array because
// the whole point is ensuring the v-model callback gets called before
// user-attached handlers.

function normalizeEvents(on) {
  /* istanbul ignore if */
  if (isDef(on[RANGE_TOKEN])) {
    // IE input[type=range] only supports `change` event
    var event = isIE ? 'change' : 'input';
    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
    delete on[RANGE_TOKEN];
  } // This was originally intended to fix #4521 but no longer necessary
  // after 2.5. Keeping it for backwards compat with generated code from < 2.4

  /* istanbul ignore if */


  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
    delete on[CHECKBOX_RADIO_TOKEN];
  }
}

var target$1;

function createOnceHandler$1(event, handler, capture) {
  var _target = target$1; // save current target element in closure

  return function onceHandler() {
    var res = handler.apply(null, arguments);

    if (res !== null) {
      remove$2(event, onceHandler, capture, _target);
    }
  };
} // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
// implementation and does not fire microtasks in between event propagation, so
// safe to exclude.


var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);

function add$1(name, handler, capture, passive) {
  // async edge case #6566: inner click event triggers patch, event handler
  // attached to outer element during patch, and triggered again. This
  // happens because browsers fire microtask ticks between event propagation.
  // the solution is simple: we save the timestamp when a handler is attached,
  // and the handler would only fire if the event passed to it was fired
  // AFTER it was attached.
  if (useMicrotaskFix) {
    var attachedTimestamp = currentFlushTimestamp;
    var original = handler;

    handler = original._wrapper = function (e) {
      if ( // no bubbling, should always fire.
      // this is just a safety net in case event.timeStamp is unreliable in
      // certain weird environments...
      e.target === e.currentTarget || // event is fired after handler attachment
      e.timeStamp >= attachedTimestamp || // bail for environments that have buggy event.timeStamp implementations
      // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
      // #9681 QtWebEngine event.timeStamp is negative value
      e.timeStamp <= 0 || // #9448 bail if event is fired in another document in a multi-page
      // electron/nw.js app, since event.timeStamp will be using a different
      // starting reference
      e.target.ownerDocument !== document) {
        return original.apply(this, arguments);
      }
    };
  }

  target$1.addEventListener(name, handler, supportsPassive ? {
    capture: capture,
    passive: passive
  } : capture);
}

function remove$2(name, handler, capture, _target) {
  (_target || target$1).removeEventListener(name, handler._wrapper || handler, capture);
}

function updateDOMListeners(oldVnode, vnode) {
  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
    return;
  }

  var on = vnode.data.on || {};
  var oldOn = oldVnode.data.on || {};
  target$1 = vnode.elm;
  normalizeEvents(on);
  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
  target$1 = undefined;
}

var events = {
  create: updateDOMListeners,
  update: updateDOMListeners
};
/*  */

var svgContainer;

function updateDOMProps(oldVnode, vnode) {
  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
    return;
  }

  var key, cur;
  var elm = vnode.elm;
  var oldProps = oldVnode.data.domProps || {};
  var props = vnode.data.domProps || {}; // clone observed objects, as the user probably wants to mutate it

  if (isDef(props.__ob__)) {
    props = vnode.data.domProps = extend({}, props);
  }

  for (key in oldProps) {
    if (!(key in props)) {
      elm[key] = '';
    }
  }

  for (key in props) {
    cur = props[key]; // ignore children if the node has textContent or innerHTML,
    // as these will throw away existing DOM nodes and cause removal errors
    // on subsequent patches (#3360)

    if (key === 'textContent' || key === 'innerHTML') {
      if (vnode.children) {
        vnode.children.length = 0;
      }

      if (cur === oldProps[key]) {
        continue;
      } // #6601 work around Chrome version <= 55 bug where single textNode
      // replaced by innerHTML/textContent retains its parentNode property


      if (elm.childNodes.length === 1) {
        elm.removeChild(elm.childNodes[0]);
      }
    }

    if (key === 'value' && elm.tagName !== 'PROGRESS') {
      // store value as _value as well since
      // non-string values will be stringified
      elm._value = cur; // avoid resetting cursor position when value is the same

      var strCur = isUndef(cur) ? '' : String(cur);

      if (shouldUpdateValue(elm, strCur)) {
        elm.value = strCur;
      }
    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
      // IE doesn't support innerHTML for SVG elements
      svgContainer = svgContainer || document.createElement('div');
      svgContainer.innerHTML = "<svg>" + cur + "</svg>";
      var svg = svgContainer.firstChild;

      while (elm.firstChild) {
        elm.removeChild(elm.firstChild);
      }

      while (svg.firstChild) {
        elm.appendChild(svg.firstChild);
      }
    } else if ( // skip the update if old and new VDOM state is the same.
    // `value` is handled separately because the DOM value may be temporarily
    // out of sync with VDOM state due to focus, composition and modifiers.
    // This  #4521 by skipping the unnecessary `checked` update.
    cur !== oldProps[key]) {
      // some property updates can throw
      // e.g. `value` on <progress> w/ non-finite value
      try {
        elm[key] = cur;
      } catch (e) {}
    }
  }
} // check platforms/web/util/attrs.js acceptValue


function shouldUpdateValue(elm, checkVal) {
  return !elm.composing && (elm.tagName === 'OPTION' || isNotInFocusAndDirty(elm, checkVal) || isDirtyWithModifiers(elm, checkVal));
}

function isNotInFocusAndDirty(elm, checkVal) {
  // return true when textbox (.number and .trim) loses focus and its value is
  // not equal to the updated value
  var notInFocus = true; // #6157
  // work around IE bug when accessing document.activeElement in an iframe

  try {
    notInFocus = document.activeElement !== elm;
  } catch (e) {}

  return notInFocus && elm.value !== checkVal;
}

function isDirtyWithModifiers(elm, newVal) {
  var value = elm.value;
  var modifiers = elm._vModifiers; // injected by v-model runtime

  if (isDef(modifiers)) {
    if (modifiers.number) {
      return toNumber(value) !== toNumber(newVal);
    }

    if (modifiers.trim) {
      return value.trim() !== newVal.trim();
    }
  }

  return value !== newVal;
}

var domProps = {
  create: updateDOMProps,
  update: updateDOMProps
};
/*  */

var parseStyleText = cached(function (cssText) {
  var res = {};
  var listDelimiter = /;(?![^(]*\))/g;
  var propertyDelimiter = /:(.+)/;
  cssText.split(listDelimiter).forEach(function (item) {
    if (item) {
      var tmp = item.split(propertyDelimiter);
      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
    }
  });
  return res;
}); // merge static and dynamic style data on the same vnode

function normalizeStyleData(data) {
  var style = normalizeStyleBinding(data.style); // static style is pre-processed into an object during compilation
  // and is always a fresh object, so it's safe to merge into it

  return data.staticStyle ? extend(data.staticStyle, style) : style;
} // normalize possible array / string values into Object


function normalizeStyleBinding(bindingStyle) {
  if (Array.isArray(bindingStyle)) {
    return toObject(bindingStyle);
  }

  if (typeof bindingStyle === 'string') {
    return parseStyleText(bindingStyle);
  }

  return bindingStyle;
}
/**
 * parent component style should be after child's
 * so that parent component's style could override it
 */


function getStyle(vnode, checkChild) {
  var res = {};
  var styleData;

  if (checkChild) {
    var childNode = vnode;

    while (childNode.componentInstance) {
      childNode = childNode.componentInstance._vnode;

      if (childNode && childNode.data && (styleData = normalizeStyleData(childNode.data))) {
        extend(res, styleData);
      }
    }
  }

  if (styleData = normalizeStyleData(vnode.data)) {
    extend(res, styleData);
  }

  var parentNode = vnode;

  while (parentNode = parentNode.parent) {
    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
      extend(res, styleData);
    }
  }

  return res;
}
/*  */


var cssVarRE = /^--/;
var importantRE = /\s*!important$/;

var setProp = function setProp(el, name, val) {
  /* istanbul ignore if */
  if (cssVarRE.test(name)) {
    el.style.setProperty(name, val);
  } else if (importantRE.test(val)) {
    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
  } else {
    var normalizedName = normalize(name);

    if (Array.isArray(val)) {
      // Support values array created by autoprefixer, e.g.
      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
      // Set them one by one, and the browser will only set those it can recognize
      for (var i = 0, len = val.length; i < len; i++) {
        el.style[normalizedName] = val[i];
      }
    } else {
      el.style[normalizedName] = val;
    }
  }
};

var vendorNames = ['Webkit', 'Moz', 'ms'];
var emptyStyle;
var normalize = cached(function (prop) {
  emptyStyle = emptyStyle || document.createElement('div').style;
  prop = camelize(prop);

  if (prop !== 'filter' && prop in emptyStyle) {
    return prop;
  }

  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);

  for (var i = 0; i < vendorNames.length; i++) {
    var name = vendorNames[i] + capName;

    if (name in emptyStyle) {
      return name;
    }
  }
});

function updateStyle(oldVnode, vnode) {
  var data = vnode.data;
  var oldData = oldVnode.data;

  if (isUndef(data.staticStyle) && isUndef(data.style) && isUndef(oldData.staticStyle) && isUndef(oldData.style)) {
    return;
  }

  var cur, name;
  var el = vnode.elm;
  var oldStaticStyle = oldData.staticStyle;
  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {}; // if static style exists, stylebinding already merged into it when doing normalizeStyleData

  var oldStyle = oldStaticStyle || oldStyleBinding;
  var style = normalizeStyleBinding(vnode.data.style) || {}; // store normalized style under a different key for next diff
  // make sure to clone it if it's reactive, since the user likely wants
  // to mutate it.

  vnode.data.normalizedStyle = isDef(style.__ob__) ? extend({}, style) : style;
  var newStyle = getStyle(vnode, true);

  for (name in oldStyle) {
    if (isUndef(newStyle[name])) {
      setProp(el, name, '');
    }
  }

  for (name in newStyle) {
    cur = newStyle[name];

    if (cur !== oldStyle[name]) {
      // ie9 setting to null has no effect, must use empty string
      setProp(el, name, cur == null ? '' : cur);
    }
  }
}

var style = {
  create: updateStyle,
  update: updateStyle
};
/*  */

var whitespaceRE = /\s+/;
/**
 * Add class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */

function addClass(el, cls) {
  /* istanbul ignore if */
  if (!cls || !(cls = cls.trim())) {
    return;
  }
  /* istanbul ignore else */


  if (el.classList) {
    if (cls.indexOf(' ') > -1) {
      cls.split(whitespaceRE).forEach(function (c) {
        return el.classList.add(c);
      });
    } else {
      el.classList.add(cls);
    }
  } else {
    var cur = " " + (el.getAttribute('class') || '') + " ";

    if (cur.indexOf(' ' + cls + ' ') < 0) {
      el.setAttribute('class', (cur + cls).trim());
    }
  }
}
/**
 * Remove class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */


function removeClass(el, cls) {
  /* istanbul ignore if */
  if (!cls || !(cls = cls.trim())) {
    return;
  }
  /* istanbul ignore else */


  if (el.classList) {
    if (cls.indexOf(' ') > -1) {
      cls.split(whitespaceRE).forEach(function (c) {
        return el.classList.remove(c);
      });
    } else {
      el.classList.remove(cls);
    }

    if (!el.classList.length) {
      el.removeAttribute('class');
    }
  } else {
    var cur = " " + (el.getAttribute('class') || '') + " ";
    var tar = ' ' + cls + ' ';

    while (cur.indexOf(tar) >= 0) {
      cur = cur.replace(tar, ' ');
    }

    cur = cur.trim();

    if (cur) {
      el.setAttribute('class', cur);
    } else {
      el.removeAttribute('class');
    }
  }
}
/*  */


function resolveTransition(def$$1) {
  if (!def$$1) {
    return;
  }
  /* istanbul ignore else */


  if (_typeof(def$$1) === 'object') {
    var res = {};

    if (def$$1.css !== false) {
      extend(res, autoCssTransition(def$$1.name || 'v'));
    }

    extend(res, def$$1);
    return res;
  } else if (typeof def$$1 === 'string') {
    return autoCssTransition(def$$1);
  }
}

var autoCssTransition = cached(function (name) {
  return {
    enterClass: name + "-enter",
    enterToClass: name + "-enter-to",
    enterActiveClass: name + "-enter-active",
    leaveClass: name + "-leave",
    leaveToClass: name + "-leave-to",
    leaveActiveClass: name + "-leave-active"
  };
});
var hasTransition = inBrowser && !isIE9;
var TRANSITION = 'transition';
var ANIMATION = 'animation'; // Transition property/event sniffing

var transitionProp = 'transition';
var transitionEndEvent = 'transitionend';
var animationProp = 'animation';
var animationEndEvent = 'animationend';

if (hasTransition) {
  /* istanbul ignore if */
  if (window.ontransitionend === undefined && window.onwebkittransitionend !== undefined) {
    transitionProp = 'WebkitTransition';
    transitionEndEvent = 'webkitTransitionEnd';
  }

  if (window.onanimationend === undefined && window.onwebkitanimationend !== undefined) {
    animationProp = 'WebkitAnimation';
    animationEndEvent = 'webkitAnimationEnd';
  }
} // binding to window is necessary to make hot reload work in IE in strict mode


var raf = inBrowser ? window.requestAnimationFrame ? window.requestAnimationFrame.bind(window) : setTimeout :
/* istanbul ignore next */
function (fn) {
  return fn();
};

function nextFrame(fn) {
  raf(function () {
    raf(fn);
  });
}

function addTransitionClass(el, cls) {
  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);

  if (transitionClasses.indexOf(cls) < 0) {
    transitionClasses.push(cls);
    addClass(el, cls);
  }
}

function removeTransitionClass(el, cls) {
  if (el._transitionClasses) {
    remove(el._transitionClasses, cls);
  }

  removeClass(el, cls);
}

function whenTransitionEnds(el, expectedType, cb) {
  var ref = getTransitionInfo(el, expectedType);
  var type = ref.type;
  var timeout = ref.timeout;
  var propCount = ref.propCount;

  if (!type) {
    return cb();
  }

  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
  var ended = 0;

  var end = function end() {
    el.removeEventListener(event, onEnd);
    cb();
  };

  var onEnd = function onEnd(e) {
    if (e.target === el) {
      if (++ended >= propCount) {
        end();
      }
    }
  };

  setTimeout(function () {
    if (ended < propCount) {
      end();
    }
  }, timeout + 1);
  el.addEventListener(event, onEnd);
}

var transformRE = /\b(transform|all)(,|$)/;

function getTransitionInfo(el, expectedType) {
  var styles = window.getComputedStyle(el); // JSDOM may return undefined for transition properties

  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
  var animationTimeout = getTimeout(animationDelays, animationDurations);
  var type;
  var timeout = 0;
  var propCount = 0;
  /* istanbul ignore if */

  if (expectedType === TRANSITION) {
    if (transitionTimeout > 0) {
      type = TRANSITION;
      timeout = transitionTimeout;
      propCount = transitionDurations.length;
    }
  } else if (expectedType === ANIMATION) {
    if (animationTimeout > 0) {
      type = ANIMATION;
      timeout = animationTimeout;
      propCount = animationDurations.length;
    }
  } else {
    timeout = Math.max(transitionTimeout, animationTimeout);
    type = timeout > 0 ? transitionTimeout > animationTimeout ? TRANSITION : ANIMATION : null;
    propCount = type ? type === TRANSITION ? transitionDurations.length : animationDurations.length : 0;
  }

  var hasTransform = type === TRANSITION && transformRE.test(styles[transitionProp + 'Property']);
  return {
    type: type,
    timeout: timeout,
    propCount: propCount,
    hasTransform: hasTransform
  };
}

function getTimeout(delays, durations) {
  /* istanbul ignore next */
  while (delays.length < durations.length) {
    delays = delays.concat(delays);
  }

  return Math.max.apply(null, durations.map(function (d, i) {
    return toMs(d) + toMs(delays[i]);
  }));
} // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
// in a locale-dependent way, using a comma instead of a dot.
// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
// as a floor function) causing unexpected behaviors


function toMs(s) {
  return Number(s.slice(0, -1).replace(',', '.')) * 1000;
}
/*  */


function enter(vnode, toggleDisplay) {
  var el = vnode.elm; // call leave callback now

  if (isDef(el._leaveCb)) {
    el._leaveCb.cancelled = true;

    el._leaveCb();
  }

  var data = resolveTransition(vnode.data.transition);

  if (isUndef(data)) {
    return;
  }
  /* istanbul ignore if */


  if (isDef(el._enterCb) || el.nodeType !== 1) {
    return;
  }

  var css = data.css;
  var type = data.type;
  var enterClass = data.enterClass;
  var enterToClass = data.enterToClass;
  var enterActiveClass = data.enterActiveClass;
  var appearClass = data.appearClass;
  var appearToClass = data.appearToClass;
  var appearActiveClass = data.appearActiveClass;
  var beforeEnter = data.beforeEnter;
  var enter = data.enter;
  var afterEnter = data.afterEnter;
  var enterCancelled = data.enterCancelled;
  var beforeAppear = data.beforeAppear;
  var appear = data.appear;
  var afterAppear = data.afterAppear;
  var appearCancelled = data.appearCancelled;
  var duration = data.duration; // activeInstance will always be the <transition> component managing this
  // transition. One edge case to check is when the <transition> is placed
  // as the root node of a child component. In that case we need to check
  // <transition>'s parent for appear check.

  var context = activeInstance;
  var transitionNode = activeInstance.$vnode;

  while (transitionNode && transitionNode.parent) {
    context = transitionNode.context;
    transitionNode = transitionNode.parent;
  }

  var isAppear = !context._isMounted || !vnode.isRootInsert;

  if (isAppear && !appear && appear !== '') {
    return;
  }

  var startClass = isAppear && appearClass ? appearClass : enterClass;
  var activeClass = isAppear && appearActiveClass ? appearActiveClass : enterActiveClass;
  var toClass = isAppear && appearToClass ? appearToClass : enterToClass;
  var beforeEnterHook = isAppear ? beforeAppear || beforeEnter : beforeEnter;
  var enterHook = isAppear ? typeof appear === 'function' ? appear : enter : enter;
  var afterEnterHook = isAppear ? afterAppear || afterEnter : afterEnter;
  var enterCancelledHook = isAppear ? appearCancelled || enterCancelled : enterCancelled;
  var explicitEnterDuration = toNumber(isObject(duration) ? duration.enter : duration);

  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
    checkDuration(explicitEnterDuration, 'enter', vnode);
  }

  var expectsCSS = css !== false && !isIE9;
  var userWantsControl = getHookArgumentsLength(enterHook);
  var cb = el._enterCb = once(function () {
    if (expectsCSS) {
      removeTransitionClass(el, toClass);
      removeTransitionClass(el, activeClass);
    }

    if (cb.cancelled) {
      if (expectsCSS) {
        removeTransitionClass(el, startClass);
      }

      enterCancelledHook && enterCancelledHook(el);
    } else {
      afterEnterHook && afterEnterHook(el);
    }

    el._enterCb = null;
  });

  if (!vnode.data.show) {
    // remove pending leave element on enter by injecting an insert hook
    mergeVNodeHook(vnode, 'insert', function () {
      var parent = el.parentNode;
      var pendingNode = parent && parent._pending && parent._pending[vnode.key];

      if (pendingNode && pendingNode.tag === vnode.tag && pendingNode.elm._leaveCb) {
        pendingNode.elm._leaveCb();
      }

      enterHook && enterHook(el, cb);
    });
  } // start enter transition


  beforeEnterHook && beforeEnterHook(el);

  if (expectsCSS) {
    addTransitionClass(el, startClass);
    addTransitionClass(el, activeClass);
    nextFrame(function () {
      removeTransitionClass(el, startClass);

      if (!cb.cancelled) {
        addTransitionClass(el, toClass);

        if (!userWantsControl) {
          if (isValidDuration(explicitEnterDuration)) {
            setTimeout(cb, explicitEnterDuration);
          } else {
            whenTransitionEnds(el, type, cb);
          }
        }
      }
    });
  }

  if (vnode.data.show) {
    toggleDisplay && toggleDisplay();
    enterHook && enterHook(el, cb);
  }

  if (!expectsCSS && !userWantsControl) {
    cb();
  }
}

function leave(vnode, rm) {
  var el = vnode.elm; // call enter callback now

  if (isDef(el._enterCb)) {
    el._enterCb.cancelled = true;

    el._enterCb();
  }

  var data = resolveTransition(vnode.data.transition);

  if (isUndef(data) || el.nodeType !== 1) {
    return rm();
  }
  /* istanbul ignore if */


  if (isDef(el._leaveCb)) {
    return;
  }

  var css = data.css;
  var type = data.type;
  var leaveClass = data.leaveClass;
  var leaveToClass = data.leaveToClass;
  var leaveActiveClass = data.leaveActiveClass;
  var beforeLeave = data.beforeLeave;
  var leave = data.leave;
  var afterLeave = data.afterLeave;
  var leaveCancelled = data.leaveCancelled;
  var delayLeave = data.delayLeave;
  var duration = data.duration;
  var expectsCSS = css !== false && !isIE9;
  var userWantsControl = getHookArgumentsLength(leave);
  var explicitLeaveDuration = toNumber(isObject(duration) ? duration.leave : duration);

  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
    checkDuration(explicitLeaveDuration, 'leave', vnode);
  }

  var cb = el._leaveCb = once(function () {
    if (el.parentNode && el.parentNode._pending) {
      el.parentNode._pending[vnode.key] = null;
    }

    if (expectsCSS) {
      removeTransitionClass(el, leaveToClass);
      removeTransitionClass(el, leaveActiveClass);
    }

    if (cb.cancelled) {
      if (expectsCSS) {
        removeTransitionClass(el, leaveClass);
      }

      leaveCancelled && leaveCancelled(el);
    } else {
      rm();
      afterLeave && afterLeave(el);
    }

    el._leaveCb = null;
  });

  if (delayLeave) {
    delayLeave(performLeave);
  } else {
    performLeave();
  }

  function performLeave() {
    // the delayed leave may have already been cancelled
    if (cb.cancelled) {
      return;
    } // record leaving element


    if (!vnode.data.show && el.parentNode) {
      (el.parentNode._pending || (el.parentNode._pending = {}))[vnode.key] = vnode;
    }

    beforeLeave && beforeLeave(el);

    if (expectsCSS) {
      addTransitionClass(el, leaveClass);
      addTransitionClass(el, leaveActiveClass);
      nextFrame(function () {
        removeTransitionClass(el, leaveClass);

        if (!cb.cancelled) {
          addTransitionClass(el, leaveToClass);

          if (!userWantsControl) {
            if (isValidDuration(explicitLeaveDuration)) {
              setTimeout(cb, explicitLeaveDuration);
            } else {
              whenTransitionEnds(el, type, cb);
            }
          }
        }
      });
    }

    leave && leave(el, cb);

    if (!expectsCSS && !userWantsControl) {
      cb();
    }
  }
} // only used in dev mode


function checkDuration(val, name, vnode) {
  if (typeof val !== 'number') {
    warn("<transition> explicit " + name + " duration is not a valid number - " + "got " + JSON.stringify(val) + ".", vnode.context);
  } else if (isNaN(val)) {
    warn("<transition> explicit " + name + " duration is NaN - " + 'the duration expression might be incorrect.', vnode.context);
  }
}

function isValidDuration(val) {
  return typeof val === 'number' && !isNaN(val);
}
/**
 * Normalize a transition hook's argument length. The hook may be:
 * - a merged hook (invoker) with the original in .fns
 * - a wrapped component method (check ._length)
 * - a plain function (.length)
 */


function getHookArgumentsLength(fn) {
  if (isUndef(fn)) {
    return false;
  }

  var invokerFns = fn.fns;

  if (isDef(invokerFns)) {
    // invoker
    return getHookArgumentsLength(Array.isArray(invokerFns) ? invokerFns[0] : invokerFns);
  } else {
    return (fn._length || fn.length) > 1;
  }
}

function _enter(_, vnode) {
  if (vnode.data.show !== true) {
    enter(vnode);
  }
}

var transition = inBrowser ? {
  create: _enter,
  activate: _enter,
  remove: function remove$$1(vnode, rm) {
    /* istanbul ignore else */
    if (vnode.data.show !== true) {
      leave(vnode, rm);
    } else {
      rm();
    }
  }
} : {};
var platformModules = [attrs, klass, events, domProps, style, transition];
/*  */
// the directive module should be applied last, after all
// built-in modules have been applied.

var modules = platformModules.concat(baseModules);
var patch = createPatchFunction({
  nodeOps: nodeOps,
  modules: modules
});
/**
 * Not type checking this file because flow doesn't like attaching
 * properties to Elements.
 */

/* istanbul ignore if */

if (isIE9) {
  // http://www.matts411.com/post/internet-explorer-9-oninput/
  document.addEventListener('selectionchange', function () {
    var el = document.activeElement;

    if (el && el.vmodel) {
      trigger(el, 'input');
    }
  });
}

var directive = {
  inserted: function inserted(el, binding, vnode, oldVnode) {
    if (vnode.tag === 'select') {
      // #6903
      if (oldVnode.elm && !oldVnode.elm._vOptions) {
        mergeVNodeHook(vnode, 'postpatch', function () {
          directive.componentUpdated(el, binding, vnode);
        });
      } else {
        setSelected(el, binding, vnode.context);
      }

      el._vOptions = [].map.call(el.options, getValue);
    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
      el._vModifiers = binding.modifiers;

      if (!binding.modifiers.lazy) {
        el.addEventListener('compositionstart', onCompositionStart);
        el.addEventListener('compositionend', onCompositionEnd); // Safari < 10.2 & UIWebView doesn't fire compositionend when
        // switching focus before confirming composition choice
        // this also fixes the issue where some browsers e.g. iOS Chrome
        // fires "change" instead of "input" on autocomplete.

        el.addEventListener('change', onCompositionEnd);
        /* istanbul ignore if */

        if (isIE9) {
          el.vmodel = true;
        }
      }
    }
  },
  componentUpdated: function componentUpdated(el, binding, vnode) {
    if (vnode.tag === 'select') {
      setSelected(el, binding, vnode.context); // in case the options rendered by v-for have changed,
      // it's possible that the value is out-of-sync with the rendered options.
      // detect such cases and filter out values that no longer has a matching
      // option in the DOM.

      var prevOptions = el._vOptions;
      var curOptions = el._vOptions = [].map.call(el.options, getValue);

      if (curOptions.some(function (o, i) {
        return !looseEqual(o, prevOptions[i]);
      })) {
        // trigger change event if
        // no matching option found for at least one value
        var needReset = el.multiple ? binding.value.some(function (v) {
          return hasNoMatchingOption(v, curOptions);
        }) : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);

        if (needReset) {
          trigger(el, 'change');
        }
      }
    }
  }
};

function setSelected(el, binding, vm) {
  actuallySetSelected(el, binding, vm);
  /* istanbul ignore if */

  if (isIE || isEdge) {
    setTimeout(function () {
      actuallySetSelected(el, binding, vm);
    }, 0);
  }
}

function actuallySetSelected(el, binding, vm) {
  var value = binding.value;
  var isMultiple = el.multiple;

  if (isMultiple && !Array.isArray(value)) {
    process.env.NODE_ENV !== 'production' && warn("<select multiple v-model=\"" + binding.expression + "\"> " + "expects an Array value for its binding, but got " + Object.prototype.toString.call(value).slice(8, -1), vm);
    return;
  }

  var selected, option;

  for (var i = 0, l = el.options.length; i < l; i++) {
    option = el.options[i];

    if (isMultiple) {
      selected = looseIndexOf(value, getValue(option)) > -1;

      if (option.selected !== selected) {
        option.selected = selected;
      }
    } else {
      if (looseEqual(getValue(option), value)) {
        if (el.selectedIndex !== i) {
          el.selectedIndex = i;
        }

        return;
      }
    }
  }

  if (!isMultiple) {
    el.selectedIndex = -1;
  }
}

function hasNoMatchingOption(value, options) {
  return options.every(function (o) {
    return !looseEqual(o, value);
  });
}

function getValue(option) {
  return '_value' in option ? option._value : option.value;
}

function onCompositionStart(e) {
  e.target.composing = true;
}

function onCompositionEnd(e) {
  // prevent triggering an input event for no reason
  if (!e.target.composing) {
    return;
  }

  e.target.composing = false;
  trigger(e.target, 'input');
}

function trigger(el, type) {
  var e = document.createEvent('HTMLEvents');
  e.initEvent(type, true, true);
  el.dispatchEvent(e);
}
/*  */
// recursively search for possible transition defined inside the component root


function locateNode(vnode) {
  return vnode.componentInstance && (!vnode.data || !vnode.data.transition) ? locateNode(vnode.componentInstance._vnode) : vnode;
}

var show = {
  bind: function bind(el, ref, vnode) {
    var value = ref.value;
    vnode = locateNode(vnode);
    var transition$$1 = vnode.data && vnode.data.transition;
    var originalDisplay = el.__vOriginalDisplay = el.style.display === 'none' ? '' : el.style.display;

    if (value && transition$$1) {
      vnode.data.show = true;
      enter(vnode, function () {
        el.style.display = originalDisplay;
      });
    } else {
      el.style.display = value ? originalDisplay : 'none';
    }
  },
  update: function update(el, ref, vnode) {
    var value = ref.value;
    var oldValue = ref.oldValue;
    /* istanbul ignore if */

    if (!value === !oldValue) {
      return;
    }

    vnode = locateNode(vnode);
    var transition$$1 = vnode.data && vnode.data.transition;

    if (transition$$1) {
      vnode.data.show = true;

      if (value) {
        enter(vnode, function () {
          el.style.display = el.__vOriginalDisplay;
        });
      } else {
        leave(vnode, function () {
          el.style.display = 'none';
        });
      }
    } else {
      el.style.display = value ? el.__vOriginalDisplay : 'none';
    }
  },
  unbind: function unbind(el, binding, vnode, oldVnode, isDestroy) {
    if (!isDestroy) {
      el.style.display = el.__vOriginalDisplay;
    }
  }
};
var platformDirectives = {
  model: directive,
  show: show
};
/*  */

var transitionProps = {
  name: String,
  appear: Boolean,
  css: Boolean,
  mode: String,
  type: String,
  enterClass: String,
  leaveClass: String,
  enterToClass: String,
  leaveToClass: String,
  enterActiveClass: String,
  leaveActiveClass: String,
  appearClass: String,
  appearActiveClass: String,
  appearToClass: String,
  duration: [Number, String, Object]
}; // in case the child is also an abstract component, e.g. <keep-alive>
// we want to recursively retrieve the real component to be rendered

function getRealChild(vnode) {
  var compOptions = vnode && vnode.componentOptions;

  if (compOptions && compOptions.Ctor.options.abstract) {
    return getRealChild(getFirstComponentChild(compOptions.children));
  } else {
    return vnode;
  }
}

function extractTransitionData(comp) {
  var data = {};
  var options = comp.$options; // props

  for (var key in options.propsData) {
    data[key] = comp[key];
  } // events.
  // extract listeners and pass them directly to the transition methods


  var listeners = options._parentListeners;

  for (var key$1 in listeners) {
    data[camelize(key$1)] = listeners[key$1];
  }

  return data;
}

function placeholder(h, rawChild) {
  if (/\d-keep-alive$/.test(rawChild.tag)) {
    return h('keep-alive', {
      props: rawChild.componentOptions.propsData
    });
  }
}

function hasParentTransition(vnode) {
  while (vnode = vnode.parent) {
    if (vnode.data.transition) {
      return true;
    }
  }
}

function isSameChild(child, oldChild) {
  return oldChild.key === child.key && oldChild.tag === child.tag;
}

var isNotTextNode = function isNotTextNode(c) {
  return c.tag || isAsyncPlaceholder(c);
};

var isVShowDirective = function isVShowDirective(d) {
  return d.name === 'show';
};

var Transition = {
  name: 'transition',
  props: transitionProps,
  abstract: true,
  render: function render(h) {
    var this$1 = this;
    var children = this.$slots.default;

    if (!children) {
      return;
    } // filter out text nodes (possible whitespaces)


    children = children.filter(isNotTextNode);
    /* istanbul ignore if */

    if (!children.length) {
      return;
    } // warn multiple elements


    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
      warn('<transition> can only be used on a single element. Use ' + '<transition-group> for lists.', this.$parent);
    }

    var mode = this.mode; // warn invalid mode

    if (process.env.NODE_ENV !== 'production' && mode && mode !== 'in-out' && mode !== 'out-in') {
      warn('invalid <transition> mode: ' + mode, this.$parent);
    }

    var rawChild = children[0]; // if this is a component root node and the component's
    // parent container node also has transition, skip.

    if (hasParentTransition(this.$vnode)) {
      return rawChild;
    } // apply transition data to child
    // use getRealChild() to ignore abstract components e.g. keep-alive


    var child = getRealChild(rawChild);
    /* istanbul ignore if */

    if (!child) {
      return rawChild;
    }

    if (this._leaving) {
      return placeholder(h, rawChild);
    } // ensure a key that is unique to the vnode type and to this transition
    // component instance. This key will be used to remove pending leaving nodes
    // during entering.


    var id = "__transition-" + this._uid + "-";
    child.key = child.key == null ? child.isComment ? id + 'comment' : id + child.tag : isPrimitive(child.key) ? String(child.key).indexOf(id) === 0 ? child.key : id + child.key : child.key;
    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
    var oldRawChild = this._vnode;
    var oldChild = getRealChild(oldRawChild); // mark v-show
    // so that the transition module can hand over the control to the directive

    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
      child.data.show = true;
    }

    if (oldChild && oldChild.data && !isSameChild(child, oldChild) && !isAsyncPlaceholder(oldChild) && // #6687 component root is a comment node
    !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)) {
      // replace old child transition data with fresh one
      // important for dynamic transitions!
      var oldData = oldChild.data.transition = extend({}, data); // handle transition mode

      if (mode === 'out-in') {
        // return placeholder node and queue update when leave finishes
        this._leaving = true;
        mergeVNodeHook(oldData, 'afterLeave', function () {
          this$1._leaving = false;
          this$1.$forceUpdate();
        });
        return placeholder(h, rawChild);
      } else if (mode === 'in-out') {
        if (isAsyncPlaceholder(child)) {
          return oldRawChild;
        }

        var delayedLeave;

        var performLeave = function performLeave() {
          delayedLeave();
        };

        mergeVNodeHook(data, 'afterEnter', performLeave);
        mergeVNodeHook(data, 'enterCancelled', performLeave);
        mergeVNodeHook(oldData, 'delayLeave', function (leave) {
          delayedLeave = leave;
        });
      }
    }

    return rawChild;
  }
};
/*  */

var props = extend({
  tag: String,
  moveClass: String
}, transitionProps);
delete props.mode;
var TransitionGroup = {
  props: props,
  beforeMount: function beforeMount() {
    var this$1 = this;
    var update = this._update;

    this._update = function (vnode, hydrating) {
      var restoreActiveInstance = setActiveInstance(this$1); // force removing pass

      this$1.__patch__(this$1._vnode, this$1.kept, false, // hydrating
      true // removeOnly (!important, avoids unnecessary moves)
      );

      this$1._vnode = this$1.kept;
      restoreActiveInstance();
      update.call(this$1, vnode, hydrating);
    };
  },
  render: function render(h) {
    var tag = this.tag || this.$vnode.data.tag || 'span';
    var map = Object.create(null);
    var prevChildren = this.prevChildren = this.children;
    var rawChildren = this.$slots.default || [];
    var children = this.children = [];
    var transitionData = extractTransitionData(this);

    for (var i = 0; i < rawChildren.length; i++) {
      var c = rawChildren[i];

      if (c.tag) {
        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
          children.push(c);
          map[c.key] = c;
          (c.data || (c.data = {})).transition = transitionData;
        } else if (process.env.NODE_ENV !== 'production') {
          var opts = c.componentOptions;
          var name = opts ? opts.Ctor.options.name || opts.tag || '' : c.tag;
          warn("<transition-group> children must be keyed: <" + name + ">");
        }
      }
    }

    if (prevChildren) {
      var kept = [];
      var removed = [];

      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
        var c$1 = prevChildren[i$1];
        c$1.data.transition = transitionData;
        c$1.data.pos = c$1.elm.getBoundingClientRect();

        if (map[c$1.key]) {
          kept.push(c$1);
        } else {
          removed.push(c$1);
        }
      }

      this.kept = h(tag, null, kept);
      this.removed = removed;
    }

    return h(tag, null, children);
  },
  updated: function updated() {
    var children = this.prevChildren;
    var moveClass = this.moveClass || (this.name || 'v') + '-move';

    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
      return;
    } // we divide the work into three loops to avoid mixing DOM reads and writes
    // in each iteration - which helps prevent layout thrashing.


    children.forEach(callPendingCbs);
    children.forEach(recordPosition);
    children.forEach(applyTranslation); // force reflow to put everything in position
    // assign to this to avoid being removed in tree-shaking
    // $flow-disable-line

    this._reflow = document.body.offsetHeight;
    children.forEach(function (c) {
      if (c.data.moved) {
        var el = c.elm;
        var s = el.style;
        addTransitionClass(el, moveClass);
        s.transform = s.WebkitTransform = s.transitionDuration = '';
        el.addEventListener(transitionEndEvent, el._moveCb = function cb(e) {
          if (e && e.target !== el) {
            return;
          }

          if (!e || /transform$/.test(e.propertyName)) {
            el.removeEventListener(transitionEndEvent, cb);
            el._moveCb = null;
            removeTransitionClass(el, moveClass);
          }
        });
      }
    });
  },
  methods: {
    hasMove: function hasMove(el, moveClass) {
      /* istanbul ignore if */
      if (!hasTransition) {
        return false;
      }
      /* istanbul ignore if */


      if (this._hasMove) {
        return this._hasMove;
      } // Detect whether an element with the move class applied has
      // CSS transitions. Since the element may be inside an entering
      // transition at this very moment, we make a clone of it and remove
      // all other transition classes applied to ensure only the move class
      // is applied.


      var clone = el.cloneNode();

      if (el._transitionClasses) {
        el._transitionClasses.forEach(function (cls) {
          removeClass(clone, cls);
        });
      }

      addClass(clone, moveClass);
      clone.style.display = 'none';
      this.$el.appendChild(clone);
      var info = getTransitionInfo(clone);
      this.$el.removeChild(clone);
      return this._hasMove = info.hasTransform;
    }
  }
};

function callPendingCbs(c) {
  /* istanbul ignore if */
  if (c.elm._moveCb) {
    c.elm._moveCb();
  }
  /* istanbul ignore if */


  if (c.elm._enterCb) {
    c.elm._enterCb();
  }
}

function recordPosition(c) {
  c.data.newPos = c.elm.getBoundingClientRect();
}

function applyTranslation(c) {
  var oldPos = c.data.pos;
  var newPos = c.data.newPos;
  var dx = oldPos.left - newPos.left;
  var dy = oldPos.top - newPos.top;

  if (dx || dy) {
    c.data.moved = true;
    var s = c.elm.style;
    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
    s.transitionDuration = '0s';
  }
}

var platformComponents = {
  Transition: Transition,
  TransitionGroup: TransitionGroup
};
/*  */
// install platform specific utils

Vue.config.mustUseProp = mustUseProp;
Vue.config.isReservedTag = isReservedTag;
Vue.config.isReservedAttr = isReservedAttr;
Vue.config.getTagNamespace = getTagNamespace;
Vue.config.isUnknownElement = isUnknownElement; // install platform runtime directives & components

extend(Vue.options.directives, platformDirectives);
extend(Vue.options.components, platformComponents); // install platform patch function

Vue.prototype.__patch__ = inBrowser ? patch : noop; // public mount method

Vue.prototype.$mount = function (el, hydrating) {
  el = el && inBrowser ? query(el) : undefined;
  return mountComponent(this, el, hydrating);
}; // devtools global hook

/* istanbul ignore next */


if (inBrowser) {
  setTimeout(function () {
    if (config.devtools) {
      if (devtools) {
        devtools.emit('init', Vue);
      } else if (process.env.NODE_ENV !== 'production' && process.env.NODE_ENV !== 'test') {
        console[console.info ? 'info' : 'log']('Download the Vue Devtools extension for a better development experience:\n' + 'https://github.com/vuejs/vue-devtools');
      }
    }

    if (process.env.NODE_ENV !== 'production' && process.env.NODE_ENV !== 'test' && config.productionTip !== false && typeof console !== 'undefined') {
      console[console.info ? 'info' : 'log']("You are running Vue in development mode.\n" + "Make sure to turn on production mode when deploying for production.\n" + "See more tips at https://vuejs.org/guide/deployment.html");
    }
  }, 0);
}

var state = function state() {
  return {
    consumers: []
  };
};
var mutations = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.consumers = [];
    }
  },
  addConsumer: function addConsumer(state, payload) {
    state.consumers.push(payload.consumer);
  },
  removeConsumer: function removeConsumer(state, payload) {
    var consumerId = payload.consumerId;
    state.consumers = state.consumers.filter(function (consumer) {
      return consumer.id !== consumerId;
    });
  },
  setConsumerPaused: function setConsumerPaused(state, payload) {
    var consumerId = payload.consumerId,
        originator = payload.originator;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });

    if (originator === 'local') {
      Vue.set(consumer, 'locallyPaused', true);
    } else {
      Vue.set(consumer, 'remotelyPaused', true);
    }
  },
  setConsumerResumed: function setConsumerResumed(state, payload) {
    var consumerId = payload.consumerId,
        originator = payload.originator;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });

    if (originator === 'local') {
      Vue.set(consumer, 'locallyPaused', false);
    } else {
      Vue.set(consumer, 'remotelyPaused', false);
    }
  },
  setConsumerCurrentLayers: function setConsumerCurrentLayers(state, payload) {
    var consumerId = payload.consumerId,
        spatialLayer = payload.spatialLayer,
        temporalLayer = payload.temporalLayer;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });
    Vue.set(consumer, 'currentSpatialLayer', spatialLayer);
    Vue.set(consumer, 'currentTemporalLayer', temporalLayer);
  },
  setConsumerPreferredLayers: function setConsumerPreferredLayers(state, payload) {
    var consumerId = payload.consumerId,
        spatialLayer = payload.spatialLayer,
        temporalLayer = payload.temporalLayer;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });
    Vue.set(consumer, 'preferredSpatialLayer', spatialLayer);
    Vue.set(consumer, 'preferredTemporalLayer', temporalLayer);
  },
  setConsumerPriority: function setConsumerPriority(state, payload) {
    var consumerId = payload.consumerId,
        priority = payload.priority;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });
    Vue.set(consumer, 'priority', priority);
  },
  setConsumerTrack: function setConsumerTrack(state, payload) {
    var consumerId = payload.consumerId,
        track = payload.track;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });
    Vue.set(consumer, 'track', track);
  },
  setConsumerScore: function setConsumerScore(state, payload) {
    var consumerId = payload.consumerId,
        score = payload.score;
    var consumer = state.consumers.find(function (consumer) {
      return consumer.id === consumerId;
    });

    if (consumer) {
      Vue.set(consumer, 'score', score);
    }
  }
};
var module = {
  namespaced: true,
  state: state,
  mutations: mutations
};

var state$1 = function state() {
  return {
    dataConsumers: []
  };
};
var mutations$1 = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.dataConsumers = [];
    }
  },
  addDataConsumer: function addDataConsumer(state, payload) {
    var dataConsumer = payload.dataConsumer;
    state.dataConsumers.push(dataConsumer);
  },
  removeDataConsumer: function removeDataConsumer(state, payload) {
    var dataConsumerId = payload.dataConsumerId;
    state.dataConsumers = state.dataConsumers.filter(function (consumer) {
      return consumer.id !== dataConsumerId;
    });
  }
};
var module$1 = {
  namespaced: true,
  state: state$1,
  mutations: mutations$1
};

var state$2 = function state() {
  return {
    dataProducers: []
  };
};
var mutations$2 = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.dataProducers = [];
    }
  },
  addDataProducer: function addDataProducer(state, payload) {
    var dataProducer = payload.dataProducer;
    state.dataProducers.push(dataProducer);
  },
  removeDataProducer: function removeDataProducer(state, payload) {
    var dataProducerId = payload.dataProducerId;
    state.dataProducers = state.dataProducers.filter(function (consumer) {
      return consumer.id !== dataProducerId;
    });
  }
};
var module$2 = {
  namespaced: true,
  state: state$2,
  mutations: mutations$2
};

function randomString (length) {
  var result = '';
  var characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
  var charactersLength = characters.length;

  for (var i = 0; i < length; i++) {
    result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }

  return result;
}

var actions = {
  notify: function notify(_ref, _ref2) {
    var commit = _ref.commit;
    var _ref2$type = _ref2.type,
        type = _ref2$type === void 0 ? 'info' : _ref2$type,
        text = _ref2.text,
        title = _ref2.title,
        timeout = _ref2.timeout;

    if (!timeout) {
      switch (type) {
        case 'info':
          timeout = 3000;
          break;

        case 'error':
          timeout = 5000;
          break;
      }
    }

    var notification = {
      id: randomString(6),
      type: type,
      title: title,
      text: text,
      timeout: timeout
    };
    commit('notifications/addNotification', notification);
    setTimeout(function () {
      commit('notifications/removeNotification', {
        notificationId: notification.id
      });
    }, timeout);
  }
};
var module$3 = {
  actions: actions
};

var state$3 = function state() {
  return {
    id: '',
    displayName: '',
    device: {
      flag: '',
      name: '',
      version: ''
    },
    canSendMic: true,
    canSendWebcam: true,
    canChangeWebcam: false,
    webcamInProgress: false,
    shareInProgress: false,
    audioOnly: false,
    audioOnlyInProgress: false,
    audioMuted: false,
    restartIceInProgress: false,
    currentAudioOutputDevice: null
  };
};
var mutations$3 = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.webcamInProgress = false;
      state.shareInProgress = false;
      state.audioOnly = false;
      state.audioOnlyInProgress = false;
      state.audioMuted = false;
      state.restartIceInProgress = false;
    }
  },
  setMe: function setMe(state, payload) {
    var peerId = payload.peerId,
        displayName = payload.displayName,
        device = payload.device;
    state.id = peerId;
    state.displayName = displayName;
    state.device = device;
  },
  setMediaCapabilities: function setMediaCapabilities(state, payload) {
    var canSendMic = payload.canSendMic,
        canSendWebcam = payload.canSendWebcam;
    state.canSendMic = canSendMic;
    state.canSendWebcam = canSendWebcam;
  },
  setCanChangeWebcam: function setCanChangeWebcam(state, payload) {
    var flag = payload.flag;
    state.canChangeWebcam = flag;
  },
  setWebcamInProgress: function setWebcamInProgress(state, payload) {
    var flag = payload.flag;
    state.webcamInProgress = flag;
  },
  setShareInProgress: function setShareInProgress(state, payload) {
    var flag = payload.flag;
    state.shareInProgress = flag;
  },
  setDisplayName: function setDisplayName(state, payload) {
    var displayName = payload.displayName;

    if (displayName) {
      state.displayName = displayName;
    }
  },
  setAudioOnlyState: function setAudioOnlyState(state, payload) {
    var enabled = payload.enabled;
    state.audioOnly = enabled;
  },
  setAudioOnlyInProgress: function setAudioOnlyInProgress(state, payload) {
    var flag = payload.flag;
    state.audioOnlyInProgress = flag;
  },
  setAudioMutedState: function setAudioMutedState(state, payload) {
    var enabled = payload.enabled;
    state.audioMuted = enabled;
  },
  setRestartIceInProgress: function setRestartIceInProgress(state, payload) {
    var flag = payload.flag;
    state.restartIceInProgress = flag;
  },
  setCurrentAudioOutputDevice: function setCurrentAudioOutputDevice(state, payload) {
    var currentAudioOutputDevice = payload.currentAudioOutputDevice;
    state.currentAudioOutputDevice = currentAudioOutputDevice;
  }
};
var module$4 = {
  namespaced: true,
  state: state$3,
  mutations: mutations$3
};

var state$4 = function state() {
  return {
    notifications: []
  };
};
var mutations$4 = {
  addNotification: function addNotification(state, payload) {
    state.notifications.push(payload);
  },
  removeNotification: function removeNotification(state, payload) {
    var notificationId = payload.notificationId;
    state.notifications = state.notifications.filter(function (notification) {
      return notification.id !== notificationId;
    });
  },
  removeAllNotifications: function removeAllNotifications(state) {
    state.notifications = [];
  }
};
var module$5 = {
  namespaced: true,
  state: state$4,
  mutations: mutations$4
};

var state$5 = function state() {
  return {
    peers: []
  };
};
var mutations$5 = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.peers = [];
    }
  },
  addPeer: function addPeer(state, payload) {
    var peer = payload.peer;
    state.peers.push(peer);
  },
  removePeer: function removePeer(state, payload) {
    var peerId = payload.peerId;
    state.peers = state.peers.filter(function (peer) {
      return peer.id !== peerId;
    });
  },
  setPeerDisplayName: function setPeerDisplayName(state, payload) {
    var displayName = payload.displayName,
        peerId = payload.peerId;
    var peer = state.peers.find(function (peer) {
      return peer.id === peerId;
    });

    if (!peer) {
      throw new Error('no Peer found');
    }

    peer.displayName = displayName;
  },
  addConsumer: function addConsumer(state, payload) {
    var consumer = payload.consumer,
        peerId = payload.peerId;
    var peer = state.peers.find(function (peer) {
      return peer.id === peerId;
    });

    if (!peer) {
      throw new Error('no Peer found for new Consumer');
    }

    peer.consumers.push(consumer.id);
  },
  removeConsumer: function removeConsumer(state, payload) {
    var consumerId = payload.consumerId,
        peerId = payload.peerId;
    var peer = state.peers.find(function (peer) {
      return peer.id === peerId;
    }); // NOTE: This means that the Peer was closed before, so it's ok.

    if (!peer) {
      return;
    }

    peer.consumers = peer.consumers.filter(function (consumer) {
      return consumer === consumerId;
    });
  },
  addDataConsumer: function addDataConsumer(state, payload) {
    var dataConsumer = payload.dataConsumer,
        peerId = payload.peerId; // special case for bot DataConsumer.

    if (!peerId) {
      return;
    }

    var peer = state.peers.find(function (peer) {
      return peer.id === peerId;
    });

    if (!peer) {
      throw new Error('no Peer found for new DataConsumer');
    }

    peer.dataConsumers.push(dataConsumer.id);
  },
  removeDataConsumer: function removeDataConsumer(state, payload) {
    var dataConsumerId = payload.dataConsumerId,
        peerId = payload.peerId; // special case for bot DataConsumer.

    if (!peerId) {
      return;
    }

    var peer = state.peers.find(function (peer) {
      return peer.id === peerId;
    }); // NOTE: This means that the Peer was closed before, so it's ok.

    if (!peer) {
      return;
    }

    peer.dataConsumers = peer.dataConsumers.filter(function (dataConsumer) {
      return dataConsumer === dataConsumerId;
    });
  }
};
var module$6 = {
  namespaced: true,
  state: state$5,
  mutations: mutations$5
};

var state$6 = function state() {
  return {
    producers: []
  };
};
var mutations$6 = {
  setRoomState: function setRoomState(state, payload) {
    if (payload.state === 'closed') {
      state.producers = [];
    }
  },
  addProducer: function addProducer(state, payload) {
    var producer = payload.producer;
    state.producers.push(producer);
  },
  removeProducer: function removeProducer(state, payload) {
    var producerId = payload.producerId;
    state.producers = state.producers.filter(function (producer) {
      return producer.id !== producerId;
    });
  },
  setProducerPaused: function setProducerPaused(state, payload) {
    var producerId = payload.producerId;
    var producer = state.producers.find(function (producer) {
      return producer.id === producerId;
    });
    producer.paused = true;
  },
  setProducerResumed: function setProducerResumed(state, payload) {
    var producerId = payload.producerId;
    var producer = state.producers.find(function (producer) {
      return producer.id === producerId;
    });
    producer.paused = false;
  },
  setProducerTrack: function setProducerTrack(state, payload) {
    var producerId = payload.producerId,
        track = payload.track;
    var producer = state.producers.find(function (producer) {
      return producer.id === producerId;
    });
    producer.track = track;
  },
  setProducerScore: function setProducerScore(state, payload) {
    var producerId = payload.producerId,
        score = payload.score;
    var producer = state.producers.find(function (producer) {
      return producer.id === producerId;
    });
    producer.score = score;
  }
};
var module$7 = {
  namespaced: true,
  state: state$6,
  mutations: mutations$6
};

var state$7 = function state() {
  return {
    url: '',
    state: '',
    // new/connecting/connected/closed
    activeSpeakerId: '' // faceDetection: false

  };
};
var mutations$7 = {
  setRoomUrl: function setRoomUrl(state, payload) {
    state.url = payload.url;
  },
  setRoomState: function setRoomState(state, payload) {
    var roomState = payload.state;

    if (roomState !== 'connected') {
      state.state = roomState;
      state.activeSpeakerId = null;
      state.statsPeerId = null;
    } else {
      state.state = roomState;
    }
  },
  setRoomActiveSpeaker: function setRoomActiveSpeaker(state, payload) {
    var peerId = payload.peerId;
    state.activeSpeakerId = peerId;
  },
  setFaceDetection: function setFaceDetection(state, payload) {
    var flag = payload.flag;
    state.faceDetection = flag;
  },
  removePeer: function removePeer(state, payload) {
    var peerId = payload.peerId;

    if (peerId && peerId === state.activeSpeakerId) {
      state.activeSpeakerId = null;
    }

    if (peerId && peerId === state.statsPeerId) {
      state.statsPeerId = null;
    }
  }
};
var room = {
  namespaced: true,
  state: state$7,
  mutations: mutations$7
};

var state$8 = function state() {
  return {
    messages: []
  };
};
var mutations$8 = {
  pushMessage: function pushMessage(state, payload) {
    var message = payload.message;
    state.messages.push(message);
  }
};
var module$8 = {
  namespaced: true,
  state: state$8,
  mutations: mutations$8
};

function registerFunctions(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name getCurrentRoom
   * @returns {Object}
   */
  app.$zeyeClient.getCurrentRoom = function () {
    return store.state.zeyeClient.room;
  };
  /**
   * @method
   * @name amIActiveSpeaker
   * @returns {Object}
   */


  app.$zeyeClient.amIActiveSpeaker = function () {
    return store.state.zeyeClient.me.id === store.state.zeyeClient.room.activeSpeakerId;
  };
  /**
   * @method
   * @name isSpeakerActive
   * @returns {Object}
   */


  app.$zeyeClient.isSpeakerActive = function (peerId) {
    return peerId === store.state.zeyeClient.room.activeSpeakerId;
  };
  /**
   * @method
   * @method
   * @name setRoomUrl
   * @returns {void}
   */


  app.$zeyeClient.setRoomUrl = function (optionalRoomUrl) {
    optionalRoomUrl = optionalRoomUrl !== undefined ? optionalRoomUrl : window.location.href;
    store.commit('zeyeClient/room/setRoomUrl', {
      roomUrl: optionalRoomUrl
    });
  };
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

var runtime_1 = createCommonjsModule(function (module) {
  /**
   * Copyright (c) 2014-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  var runtime = function (exports) {

    var Op = Object.prototype;
    var hasOwn = Op.hasOwnProperty;
    var undefined$1; // More compressible than void 0.

    var $Symbol = typeof Symbol === "function" ? Symbol : {};
    var iteratorSymbol = $Symbol.iterator || "@@iterator";
    var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
    var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

    function define(obj, key, value) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
      return obj[key];
    }

    try {
      // IE 8 has a broken Object.defineProperty that only works on DOM objects.
      define({}, "");
    } catch (err) {
      define = function define(obj, key, value) {
        return obj[key] = value;
      };
    }

    function wrap(innerFn, outerFn, self, tryLocsList) {
      // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
      var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
      var generator = Object.create(protoGenerator.prototype);
      var context = new Context(tryLocsList || []); // The ._invoke method unifies the implementations of the .next,
      // .throw, and .return methods.

      generator._invoke = makeInvokeMethod(innerFn, self, context);
      return generator;
    }

    exports.wrap = wrap; // Try/catch helper to minimize deoptimizations. Returns a completion
    // record like context.tryEntries[i].completion. This interface could
    // have been (and was previously) designed to take a closure to be
    // invoked without arguments, but in all the cases we care about we
    // already have an existing method we want to call, so there's no need
    // to create a new function object. We can even get away with assuming
    // the method takes exactly one argument, since that happens to be true
    // in every case, so we don't have to touch the arguments object. The
    // only additional allocation required is the completion record, which
    // has a stable shape and so hopefully should be cheap to allocate.

    function tryCatch(fn, obj, arg) {
      try {
        return {
          type: "normal",
          arg: fn.call(obj, arg)
        };
      } catch (err) {
        return {
          type: "throw",
          arg: err
        };
      }
    }

    var GenStateSuspendedStart = "suspendedStart";
    var GenStateSuspendedYield = "suspendedYield";
    var GenStateExecuting = "executing";
    var GenStateCompleted = "completed"; // Returning this object from the innerFn has the same effect as
    // breaking out of the dispatch switch statement.

    var ContinueSentinel = {}; // Dummy constructor functions that we use as the .constructor and
    // .constructor.prototype properties for functions that return Generator
    // objects. For full spec compliance, you may wish to configure your
    // minifier not to mangle the names of these two functions.

    function Generator() {}

    function GeneratorFunction() {}

    function GeneratorFunctionPrototype() {} // This is a polyfill for %IteratorPrototype% for environments that
    // don't natively support it.


    var IteratorPrototype = {};

    IteratorPrototype[iteratorSymbol] = function () {
      return this;
    };

    var getProto = Object.getPrototypeOf;
    var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

    if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
      // This environment has a native %IteratorPrototype%; use it instead
      // of the polyfill.
      IteratorPrototype = NativeIteratorPrototype;
    }

    var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
    GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
    GeneratorFunctionPrototype.constructor = GeneratorFunction;
    GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction"); // Helper for defining the .next, .throw, and .return methods of the
    // Iterator interface in terms of a single ._invoke method.

    function defineIteratorMethods(prototype) {
      ["next", "throw", "return"].forEach(function (method) {
        define(prototype, method, function (arg) {
          return this._invoke(method, arg);
        });
      });
    }

    exports.isGeneratorFunction = function (genFun) {
      var ctor = typeof genFun === "function" && genFun.constructor;
      return ctor ? ctor === GeneratorFunction || // For the native GeneratorFunction constructor, the best we can
      // do is to check its .name property.
      (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
    };

    exports.mark = function (genFun) {
      if (Object.setPrototypeOf) {
        Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
      } else {
        genFun.__proto__ = GeneratorFunctionPrototype;
        define(genFun, toStringTagSymbol, "GeneratorFunction");
      }

      genFun.prototype = Object.create(Gp);
      return genFun;
    }; // Within the body of any async function, `await x` is transformed to
    // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
    // `hasOwn.call(value, "__await")` to determine if the yielded value is
    // meant to be awaited.


    exports.awrap = function (arg) {
      return {
        __await: arg
      };
    };

    function AsyncIterator(generator, PromiseImpl) {
      function invoke(method, arg, resolve, reject) {
        var record = tryCatch(generator[method], generator, arg);

        if (record.type === "throw") {
          reject(record.arg);
        } else {
          var result = record.arg;
          var value = result.value;

          if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
            return PromiseImpl.resolve(value.__await).then(function (value) {
              invoke("next", value, resolve, reject);
            }, function (err) {
              invoke("throw", err, resolve, reject);
            });
          }

          return PromiseImpl.resolve(value).then(function (unwrapped) {
            // When a yielded Promise is resolved, its final value becomes
            // the .value of the Promise<{value,done}> result for the
            // current iteration.
            result.value = unwrapped;
            resolve(result);
          }, function (error) {
            // If a rejected Promise was yielded, throw the rejection back
            // into the async generator function so it can be handled there.
            return invoke("throw", error, resolve, reject);
          });
        }
      }

      var previousPromise;

      function enqueue(method, arg) {
        function callInvokeWithMethodAndArg() {
          return new PromiseImpl(function (resolve, reject) {
            invoke(method, arg, resolve, reject);
          });
        }

        return previousPromise = // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, // Avoid propagating failures to Promises returned by later
        // invocations of the iterator.
        callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
      } // Define the unified helper method that is used to implement .next,
      // .throw, and .return (see defineIteratorMethods).


      this._invoke = enqueue;
    }

    defineIteratorMethods(AsyncIterator.prototype);

    AsyncIterator.prototype[asyncIteratorSymbol] = function () {
      return this;
    };

    exports.AsyncIterator = AsyncIterator; // Note that simple async functions are implemented on top of
    // AsyncIterator objects; they just return a Promise for the value of
    // the final result produced by the iterator.

    exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
      if (PromiseImpl === void 0) PromiseImpl = Promise;
      var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
      return exports.isGeneratorFunction(outerFn) ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function (result) {
        return result.done ? result.value : iter.next();
      });
    };

    function makeInvokeMethod(innerFn, self, context) {
      var state = GenStateSuspendedStart;
      return function invoke(method, arg) {
        if (state === GenStateExecuting) {
          throw new Error("Generator is already running");
        }

        if (state === GenStateCompleted) {
          if (method === "throw") {
            throw arg;
          } // Be forgiving, per 25.3.3.3.3 of the spec:
          // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume


          return doneResult();
        }

        context.method = method;
        context.arg = arg;

        while (true) {
          var delegate = context.delegate;

          if (delegate) {
            var delegateResult = maybeInvokeDelegate(delegate, context);

            if (delegateResult) {
              if (delegateResult === ContinueSentinel) continue;
              return delegateResult;
            }
          }

          if (context.method === "next") {
            // Setting context._sent for legacy support of Babel's
            // function.sent implementation.
            context.sent = context._sent = context.arg;
          } else if (context.method === "throw") {
            if (state === GenStateSuspendedStart) {
              state = GenStateCompleted;
              throw context.arg;
            }

            context.dispatchException(context.arg);
          } else if (context.method === "return") {
            context.abrupt("return", context.arg);
          }

          state = GenStateExecuting;
          var record = tryCatch(innerFn, self, context);

          if (record.type === "normal") {
            // If an exception is thrown from innerFn, we leave state ===
            // GenStateExecuting and loop back for another invocation.
            state = context.done ? GenStateCompleted : GenStateSuspendedYield;

            if (record.arg === ContinueSentinel) {
              continue;
            }

            return {
              value: record.arg,
              done: context.done
            };
          } else if (record.type === "throw") {
            state = GenStateCompleted; // Dispatch the exception by looping back around to the
            // context.dispatchException(context.arg) call above.

            context.method = "throw";
            context.arg = record.arg;
          }
        }
      };
    } // Call delegate.iterator[context.method](context.arg) and handle the
    // result, either by returning a { value, done } result from the
    // delegate iterator, or by modifying context.method and context.arg,
    // setting context.delegate to null, and returning the ContinueSentinel.


    function maybeInvokeDelegate(delegate, context) {
      var method = delegate.iterator[context.method];

      if (method === undefined$1) {
        // A .throw or .return when the delegate iterator has no .throw
        // method always terminates the yield* loop.
        context.delegate = null;

        if (context.method === "throw") {
          // Note: ["return"] must be used for ES3 parsing compatibility.
          if (delegate.iterator["return"]) {
            // If the delegate iterator has a return method, give it a
            // chance to clean up.
            context.method = "return";
            context.arg = undefined$1;
            maybeInvokeDelegate(delegate, context);

            if (context.method === "throw") {
              // If maybeInvokeDelegate(context) changed context.method from
              // "return" to "throw", let that override the TypeError below.
              return ContinueSentinel;
            }
          }

          context.method = "throw";
          context.arg = new TypeError("The iterator does not provide a 'throw' method");
        }

        return ContinueSentinel;
      }

      var record = tryCatch(method, delegate.iterator, context.arg);

      if (record.type === "throw") {
        context.method = "throw";
        context.arg = record.arg;
        context.delegate = null;
        return ContinueSentinel;
      }

      var info = record.arg;

      if (!info) {
        context.method = "throw";
        context.arg = new TypeError("iterator result is not an object");
        context.delegate = null;
        return ContinueSentinel;
      }

      if (info.done) {
        // Assign the result of the finished delegate to the temporary
        // variable specified by delegate.resultName (see delegateYield).
        context[delegate.resultName] = info.value; // Resume execution at the desired location (see delegateYield).

        context.next = delegate.nextLoc; // If context.method was "throw" but the delegate handled the
        // exception, let the outer generator proceed normally. If
        // context.method was "next", forget context.arg since it has been
        // "consumed" by the delegate iterator. If context.method was
        // "return", allow the original .return call to continue in the
        // outer generator.

        if (context.method !== "return") {
          context.method = "next";
          context.arg = undefined$1;
        }
      } else {
        // Re-yield the result returned by the delegate method.
        return info;
      } // The delegate iterator is finished, so forget it and continue with
      // the outer generator.


      context.delegate = null;
      return ContinueSentinel;
    } // Define Generator.prototype.{next,throw,return} in terms of the
    // unified ._invoke helper method.


    defineIteratorMethods(Gp);
    define(Gp, toStringTagSymbol, "Generator"); // A Generator should always return itself as the iterator object when the
    // @@iterator function is called on it. Some browsers' implementations of the
    // iterator prototype chain incorrectly implement this, causing the Generator
    // object to not be returned from this call. This ensures that doesn't happen.
    // See https://github.com/facebook/regenerator/issues/274 for more details.

    Gp[iteratorSymbol] = function () {
      return this;
    };

    Gp.toString = function () {
      return "[object Generator]";
    };

    function pushTryEntry(locs) {
      var entry = {
        tryLoc: locs[0]
      };

      if (1 in locs) {
        entry.catchLoc = locs[1];
      }

      if (2 in locs) {
        entry.finallyLoc = locs[2];
        entry.afterLoc = locs[3];
      }

      this.tryEntries.push(entry);
    }

    function resetTryEntry(entry) {
      var record = entry.completion || {};
      record.type = "normal";
      delete record.arg;
      entry.completion = record;
    }

    function Context(tryLocsList) {
      // The root entry object (effectively a try statement without a catch
      // or a finally block) gives us a place to store values thrown from
      // locations where there is no enclosing try statement.
      this.tryEntries = [{
        tryLoc: "root"
      }];
      tryLocsList.forEach(pushTryEntry, this);
      this.reset(true);
    }

    exports.keys = function (object) {
      var keys = [];

      for (var key in object) {
        keys.push(key);
      }

      keys.reverse(); // Rather than returning an object with a next method, we keep
      // things simple and return the next function itself.

      return function next() {
        while (keys.length) {
          var key = keys.pop();

          if (key in object) {
            next.value = key;
            next.done = false;
            return next;
          }
        } // To avoid creating an additional object, we just hang the .value
        // and .done properties off the next function object itself. This
        // also ensures that the minifier will not anonymize the function.


        next.done = true;
        return next;
      };
    };

    function values(iterable) {
      if (iterable) {
        var iteratorMethod = iterable[iteratorSymbol];

        if (iteratorMethod) {
          return iteratorMethod.call(iterable);
        }

        if (typeof iterable.next === "function") {
          return iterable;
        }

        if (!isNaN(iterable.length)) {
          var i = -1,
              next = function next() {
            while (++i < iterable.length) {
              if (hasOwn.call(iterable, i)) {
                next.value = iterable[i];
                next.done = false;
                return next;
              }
            }

            next.value = undefined$1;
            next.done = true;
            return next;
          };

          return next.next = next;
        }
      } // Return an iterator with no values.


      return {
        next: doneResult
      };
    }

    exports.values = values;

    function doneResult() {
      return {
        value: undefined$1,
        done: true
      };
    }

    Context.prototype = {
      constructor: Context,
      reset: function reset(skipTempReset) {
        this.prev = 0;
        this.next = 0; // Resetting context._sent for legacy support of Babel's
        // function.sent implementation.

        this.sent = this._sent = undefined$1;
        this.done = false;
        this.delegate = null;
        this.method = "next";
        this.arg = undefined$1;
        this.tryEntries.forEach(resetTryEntry);

        if (!skipTempReset) {
          for (var name in this) {
            // Not sure about the optimal order of these conditions:
            if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
              this[name] = undefined$1;
            }
          }
        }
      },
      stop: function stop() {
        this.done = true;
        var rootEntry = this.tryEntries[0];
        var rootRecord = rootEntry.completion;

        if (rootRecord.type === "throw") {
          throw rootRecord.arg;
        }

        return this.rval;
      },
      dispatchException: function dispatchException(exception) {
        if (this.done) {
          throw exception;
        }

        var context = this;

        function handle(loc, caught) {
          record.type = "throw";
          record.arg = exception;
          context.next = loc;

          if (caught) {
            // If the dispatched exception was caught by a catch block,
            // then let that catch block handle the exception normally.
            context.method = "next";
            context.arg = undefined$1;
          }

          return !!caught;
        }

        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];
          var record = entry.completion;

          if (entry.tryLoc === "root") {
            // Exception thrown outside of any try block that could handle
            // it, so set the completion value of the entire function to
            // throw the exception.
            return handle("end");
          }

          if (entry.tryLoc <= this.prev) {
            var hasCatch = hasOwn.call(entry, "catchLoc");
            var hasFinally = hasOwn.call(entry, "finallyLoc");

            if (hasCatch && hasFinally) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              } else if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }
            } else if (hasCatch) {
              if (this.prev < entry.catchLoc) {
                return handle(entry.catchLoc, true);
              }
            } else if (hasFinally) {
              if (this.prev < entry.finallyLoc) {
                return handle(entry.finallyLoc);
              }
            } else {
              throw new Error("try statement without catch or finally");
            }
          }
        }
      },
      abrupt: function abrupt(type, arg) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
            var finallyEntry = entry;
            break;
          }
        }

        if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
          // Ignore the finally entry if control is not jumping to a
          // location outside the try/catch block.
          finallyEntry = null;
        }

        var record = finallyEntry ? finallyEntry.completion : {};
        record.type = type;
        record.arg = arg;

        if (finallyEntry) {
          this.method = "next";
          this.next = finallyEntry.finallyLoc;
          return ContinueSentinel;
        }

        return this.complete(record);
      },
      complete: function complete(record, afterLoc) {
        if (record.type === "throw") {
          throw record.arg;
        }

        if (record.type === "break" || record.type === "continue") {
          this.next = record.arg;
        } else if (record.type === "return") {
          this.rval = this.arg = record.arg;
          this.method = "return";
          this.next = "end";
        } else if (record.type === "normal" && afterLoc) {
          this.next = afterLoc;
        }

        return ContinueSentinel;
      },
      finish: function finish(finallyLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.finallyLoc === finallyLoc) {
            this.complete(entry.completion, entry.afterLoc);
            resetTryEntry(entry);
            return ContinueSentinel;
          }
        }
      },
      "catch": function _catch(tryLoc) {
        for (var i = this.tryEntries.length - 1; i >= 0; --i) {
          var entry = this.tryEntries[i];

          if (entry.tryLoc === tryLoc) {
            var record = entry.completion;

            if (record.type === "throw") {
              var thrown = record.arg;
              resetTryEntry(entry);
            }

            return thrown;
          }
        } // The context.catch method must only be called with a location
        // argument that corresponds to a known catch block.


        throw new Error("illegal catch attempt");
      },
      delegateYield: function delegateYield(iterable, resultName, nextLoc) {
        this.delegate = {
          iterator: values(iterable),
          resultName: resultName,
          nextLoc: nextLoc
        };

        if (this.method === "next") {
          // Deliberately forget the last sent value so that we don't
          // accidentally pass it on to the delegate.
          this.arg = undefined$1;
        }

        return ContinueSentinel;
      }
    }; // Regardless of whether this script is executing as a CommonJS module
    // or not, return the runtime object so that we can declare the variable
    // regeneratorRuntime in the outer scope, which allows this module to be
    // injected easily by `bin/regenerator --include-runtime script.js`.

    return exports;
  }( // If this script is executing as a CommonJS module, use module.exports
  // as the regeneratorRuntime namespace. Otherwise create a new empty
  // object. Either way, the resulting object will be used to initialize
  // the regeneratorRuntime variable at the top of this file.
   module.exports );

  try {
    regeneratorRuntime = runtime;
  } catch (accidentalStrictMode) {
    // This module should not be running in strict mode, so the above
    // assignment should always work unless something is misconfigured. Just
    // in case runtime.js accidentally runs in strict mode, we can escape
    // strict mode using a global Function call. This could conceivably fail
    // if a Content Security Policy forbids using Function, but in that case
    // the proper solution is to fix the accidental strict mode problem. If
    // you've misconfigured your bundler to force strict mode and applied a
    // CSP to forbid Function, and you're not willing to fix either of those
    // problems, please detail your unique predicament in a GitHub issue.
    Function("r", "regeneratorRuntime = r")(runtime);
  }
});

var regenerator = runtime_1;

var USER_COOKIE = 'zeye.user';
var DEVICES_COOKIE = 'zeye.devices';
function getUser() {
  return jsCookie.getJSON(USER_COOKIE);
}
function setUser(_ref) {
  var displayName = _ref.displayName;
  jsCookie.set(USER_COOKIE, {
    displayName: displayName
  });
}
function getDevices() {
  return jsCookie.getJSON(DEVICES_COOKIE);
}
function setDevices(_ref2) {
  var webcamEnabled = _ref2.webcamEnabled;
  jsCookie.set(DEVICES_COOKIE, {
    webcamEnabled: webcamEnabled
  });
}

function randomName () {
  return randomString(8);
}

// NOTE: this list must be up-to-date with browsers listed in
// test/acceptance/useragentstrings.yml
var BROWSER_ALIASES_MAP = {
  'Amazon Silk': 'amazon_silk',
  'Android Browser': 'android',
  Bada: 'bada',
  BlackBerry: 'blackberry',
  Chrome: 'chrome',
  Chromium: 'chromium',
  Electron: 'electron',
  Epiphany: 'epiphany',
  Firefox: 'firefox',
  Focus: 'focus',
  Generic: 'generic',
  'Google Search': 'google_search',
  Googlebot: 'googlebot',
  'Internet Explorer': 'ie',
  'K-Meleon': 'k_meleon',
  Maxthon: 'maxthon',
  'Microsoft Edge': 'edge',
  'MZ Browser': 'mz',
  'NAVER Whale Browser': 'naver',
  Opera: 'opera',
  'Opera Coast': 'opera_coast',
  PhantomJS: 'phantomjs',
  Puffin: 'puffin',
  QupZilla: 'qupzilla',
  QQ: 'qq',
  QQLite: 'qqlite',
  Safari: 'safari',
  Sailfish: 'sailfish',
  'Samsung Internet for Android': 'samsung_internet',
  SeaMonkey: 'seamonkey',
  Sleipnir: 'sleipnir',
  Swing: 'swing',
  Tizen: 'tizen',
  'UC Browser': 'uc',
  Vivaldi: 'vivaldi',
  'WebOS Browser': 'webos',
  WeChat: 'wechat',
  'Yandex Browser': 'yandex',
  Roku: 'roku'
};
var BROWSER_MAP = {
  amazon_silk: 'Amazon Silk',
  android: 'Android Browser',
  bada: 'Bada',
  blackberry: 'BlackBerry',
  chrome: 'Chrome',
  chromium: 'Chromium',
  electron: 'Electron',
  epiphany: 'Epiphany',
  firefox: 'Firefox',
  focus: 'Focus',
  generic: 'Generic',
  googlebot: 'Googlebot',
  google_search: 'Google Search',
  ie: 'Internet Explorer',
  k_meleon: 'K-Meleon',
  maxthon: 'Maxthon',
  edge: 'Microsoft Edge',
  mz: 'MZ Browser',
  naver: 'NAVER Whale Browser',
  opera: 'Opera',
  opera_coast: 'Opera Coast',
  phantomjs: 'PhantomJS',
  puffin: 'Puffin',
  qupzilla: 'QupZilla',
  qq: 'QQ Browser',
  qqlite: 'QQ Browser Lite',
  safari: 'Safari',
  sailfish: 'Sailfish',
  samsung_internet: 'Samsung Internet for Android',
  seamonkey: 'SeaMonkey',
  sleipnir: 'Sleipnir',
  swing: 'Swing',
  tizen: 'Tizen',
  uc: 'UC Browser',
  vivaldi: 'Vivaldi',
  webos: 'WebOS Browser',
  wechat: 'WeChat',
  yandex: 'Yandex Browser'
};
var PLATFORMS_MAP = {
  tablet: 'tablet',
  mobile: 'mobile',
  desktop: 'desktop',
  tv: 'tv'
};
var OS_MAP = {
  WindowsPhone: 'Windows Phone',
  Windows: 'Windows',
  MacOS: 'macOS',
  iOS: 'iOS',
  Android: 'Android',
  WebOS: 'WebOS',
  BlackBerry: 'BlackBerry',
  Bada: 'Bada',
  Tizen: 'Tizen',
  Linux: 'Linux',
  ChromeOS: 'Chrome OS',
  PlayStation4: 'PlayStation 4',
  Roku: 'Roku'
};
var ENGINE_MAP = {
  EdgeHTML: 'EdgeHTML',
  Blink: 'Blink',
  Trident: 'Trident',
  Presto: 'Presto',
  Gecko: 'Gecko',
  WebKit: 'WebKit'
};

var Utils = /*#__PURE__*/function () {
  function Utils() {
    _classCallCheck(this, Utils);
  }

  _createClass(Utils, null, [{
    key: "getFirstMatch",

    /**
     * Get first matched item for a string
     * @param {RegExp} regexp
     * @param {String} ua
     * @return {Array|{index: number, input: string}|*|boolean|string}
     */
    value: function getFirstMatch(regexp, ua) {
      var match = ua.match(regexp);
      return match && match.length > 0 && match[1] || '';
    }
    /**
     * Get second matched item for a string
     * @param regexp
     * @param {String} ua
     * @return {Array|{index: number, input: string}|*|boolean|string}
     */

  }, {
    key: "getSecondMatch",
    value: function getSecondMatch(regexp, ua) {
      var match = ua.match(regexp);
      return match && match.length > 1 && match[2] || '';
    }
    /**
     * Match a regexp and return a constant or undefined
     * @param {RegExp} regexp
     * @param {String} ua
     * @param {*} _const Any const that will be returned if regexp matches the string
     * @return {*}
     */

  }, {
    key: "matchAndReturnConst",
    value: function matchAndReturnConst(regexp, ua, _const) {
      if (regexp.test(ua)) {
        return _const;
      }

      return void 0;
    }
  }, {
    key: "getWindowsVersionName",
    value: function getWindowsVersionName(version) {
      switch (version) {
        case 'NT':
          return 'NT';

        case 'XP':
          return 'XP';

        case 'NT 5.0':
          return '2000';

        case 'NT 5.1':
          return 'XP';

        case 'NT 5.2':
          return '2003';

        case 'NT 6.0':
          return 'Vista';

        case 'NT 6.1':
          return '7';

        case 'NT 6.2':
          return '8';

        case 'NT 6.3':
          return '8.1';

        case 'NT 10.0':
          return '10';

        default:
          return undefined;
      }
    }
    /**
     * Get macOS version name
     *    10.5 - Leopard
     *    10.6 - Snow Leopard
     *    10.7 - Lion
     *    10.8 - Mountain Lion
     *    10.9 - Mavericks
     *    10.10 - Yosemite
     *    10.11 - El Capitan
     *    10.12 - Sierra
     *    10.13 - High Sierra
     *    10.14 - Mojave
     *    10.15 - Catalina
     *
     * @example
     *   getMacOSVersionName("10.14") // 'Mojave'
     *
     * @param  {string} version
     * @return {string} versionName
     */

  }, {
    key: "getMacOSVersionName",
    value: function getMacOSVersionName(version) {
      var v = version.split('.').splice(0, 2).map(function (s) {
        return parseInt(s, 10) || 0;
      });
      v.push(0);
      if (v[0] !== 10) return undefined;

      switch (v[1]) {
        case 5:
          return 'Leopard';

        case 6:
          return 'Snow Leopard';

        case 7:
          return 'Lion';

        case 8:
          return 'Mountain Lion';

        case 9:
          return 'Mavericks';

        case 10:
          return 'Yosemite';

        case 11:
          return 'El Capitan';

        case 12:
          return 'Sierra';

        case 13:
          return 'High Sierra';

        case 14:
          return 'Mojave';

        case 15:
          return 'Catalina';

        default:
          return undefined;
      }
    }
    /**
     * Get Android version name
     *    1.5 - Cupcake
     *    1.6 - Donut
     *    2.0 - Eclair
     *    2.1 - Eclair
     *    2.2 - Froyo
     *    2.x - Gingerbread
     *    3.x - Honeycomb
     *    4.0 - Ice Cream Sandwich
     *    4.1 - Jelly Bean
     *    4.4 - KitKat
     *    5.x - Lollipop
     *    6.x - Marshmallow
     *    7.x - Nougat
     *    8.x - Oreo
     *    9.x - Pie
     *
     * @example
     *   getAndroidVersionName("7.0") // 'Nougat'
     *
     * @param  {string} version
     * @return {string} versionName
     */

  }, {
    key: "getAndroidVersionName",
    value: function getAndroidVersionName(version) {
      var v = version.split('.').splice(0, 2).map(function (s) {
        return parseInt(s, 10) || 0;
      });
      v.push(0);
      if (v[0] === 1 && v[1] < 5) return undefined;
      if (v[0] === 1 && v[1] < 6) return 'Cupcake';
      if (v[0] === 1 && v[1] >= 6) return 'Donut';
      if (v[0] === 2 && v[1] < 2) return 'Eclair';
      if (v[0] === 2 && v[1] === 2) return 'Froyo';
      if (v[0] === 2 && v[1] > 2) return 'Gingerbread';
      if (v[0] === 3) return 'Honeycomb';
      if (v[0] === 4 && v[1] < 1) return 'Ice Cream Sandwich';
      if (v[0] === 4 && v[1] < 4) return 'Jelly Bean';
      if (v[0] === 4 && v[1] >= 4) return 'KitKat';
      if (v[0] === 5) return 'Lollipop';
      if (v[0] === 6) return 'Marshmallow';
      if (v[0] === 7) return 'Nougat';
      if (v[0] === 8) return 'Oreo';
      if (v[0] === 9) return 'Pie';
      return undefined;
    }
    /**
     * Get version precisions count
     *
     * @example
     *   getVersionPrecision("1.10.3") // 3
     *
     * @param  {string} version
     * @return {number}
     */

  }, {
    key: "getVersionPrecision",
    value: function getVersionPrecision(version) {
      return version.split('.').length;
    }
    /**
     * Calculate browser version weight
     *
     * @example
     *   compareVersions('1.10.2.1',  '1.8.2.1.90')    // 1
     *   compareVersions('1.010.2.1', '1.09.2.1.90');  // 1
     *   compareVersions('1.10.2.1',  '1.10.2.1');     // 0
     *   compareVersions('1.10.2.1',  '1.0800.2');     // -1
     *   compareVersions('1.10.2.1',  '1.10',  true);  // 0
     *
     * @param {String} versionA versions versions to compare
     * @param {String} versionB versions versions to compare
     * @param {boolean} [isLoose] enable loose comparison
     * @return {Number} comparison result: -1 when versionA is lower,
     * 1 when versionA is bigger, 0 when both equal
     */

    /* eslint consistent-return: 1 */

  }, {
    key: "compareVersions",
    value: function compareVersions(versionA, versionB) {
      var isLoose = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      // 1) get common precision for both versions, for example for "10.0" and "9" it should be 2
      var versionAPrecision = Utils.getVersionPrecision(versionA);
      var versionBPrecision = Utils.getVersionPrecision(versionB);
      var precision = Math.max(versionAPrecision, versionBPrecision);
      var lastPrecision = 0;
      var chunks = Utils.map([versionA, versionB], function (version) {
        var delta = precision - Utils.getVersionPrecision(version); // 2) "9" -> "9.0" (for precision = 2)

        var _version = version + new Array(delta + 1).join('.0'); // 3) "9.0" -> ["000000000"", "000000009"]


        return Utils.map(_version.split('.'), function (chunk) {
          return new Array(20 - chunk.length).join('0') + chunk;
        }).reverse();
      }); // adjust precision for loose comparison

      if (isLoose) {
        lastPrecision = precision - Math.min(versionAPrecision, versionBPrecision);
      } // iterate in reverse order by reversed chunks array


      precision -= 1;

      while (precision >= lastPrecision) {
        // 4) compare: "000000009" > "000000010" = false (but "9" > "10" = true)
        if (chunks[0][precision] > chunks[1][precision]) {
          return 1;
        }

        if (chunks[0][precision] === chunks[1][precision]) {
          if (precision === lastPrecision) {
            // all version chunks are same
            return 0;
          }

          precision -= 1;
        } else if (chunks[0][precision] < chunks[1][precision]) {
          return -1;
        }
      }

      return undefined;
    }
    /**
     * Array::map polyfill
     *
     * @param  {Array} arr
     * @param  {Function} iterator
     * @return {Array}
     */

  }, {
    key: "map",
    value: function map(arr, iterator) {
      var result = [];
      var i;

      if (Array.prototype.map) {
        return Array.prototype.map.call(arr, iterator);
      }

      for (i = 0; i < arr.length; i += 1) {
        result.push(iterator(arr[i]));
      }

      return result;
    }
    /**
     * Array::find polyfill
     *
     * @param  {Array} arr
     * @param  {Function} predicate
     * @return {Array}
     */

  }, {
    key: "find",
    value: function find(arr, predicate) {
      var i;
      var l;

      if (Array.prototype.find) {
        return Array.prototype.find.call(arr, predicate);
      }

      for (i = 0, l = arr.length; i < l; i += 1) {
        var value = arr[i];

        if (predicate(value, i)) {
          return value;
        }
      }

      return undefined;
    }
    /**
     * Object::assign polyfill
     *
     * @param  {Object} obj
     * @param  {Object} ...objs
     * @return {Object}
     */

  }, {
    key: "assign",
    value: function assign(obj) {
      var result = obj;
      var i;
      var l;

      for (var _len = arguments.length, assigners = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        assigners[_key - 1] = arguments[_key];
      }

      if (Object.assign) {
        return Object.assign.apply(Object, [obj].concat(assigners));
      }

      var _loop = function _loop() {
        var assigner = assigners[i];

        if (_typeof(assigner) === 'object' && assigner !== null) {
          var keys = Object.keys(assigner);
          keys.forEach(function (key) {
            result[key] = assigner[key];
          });
        }
      };

      for (i = 0, l = assigners.length; i < l; i += 1) {
        _loop();
      }

      return obj;
    }
    /**
     * Get short version/alias for a browser name
     *
     * @example
     *   getBrowserAlias('Microsoft Edge') // edge
     *
     * @param  {string} browserName
     * @return {string}
     */

  }, {
    key: "getBrowserAlias",
    value: function getBrowserAlias(browserName) {
      return BROWSER_ALIASES_MAP[browserName];
    }
    /**
     * Get short version/alias for a browser name
     *
     * @example
     *   getBrowserAlias('edge') // Microsoft Edge
     *
     * @param  {string} browserAlias
     * @return {string}
     */

  }, {
    key: "getBrowserTypeByAlias",
    value: function getBrowserTypeByAlias(browserAlias) {
      return BROWSER_MAP[browserAlias] || '';
    }
  }]);

  return Utils;
}();

/**
 * Browsers' descriptors
 *
 * The idea of descriptors is simple. You should know about them two simple things:
 * 1. Every descriptor has a method or property called `test` and a `describe` method.
 * 2. Order of descriptors is important.
 *
 * More details:
 * 1. Method or property `test` serves as a way to detect whether the UA string
 * matches some certain browser or not. The `describe` method helps to make a result
 * object with params that show some browser-specific things: name, version, etc.
 * 2. Order of descriptors is important because a Parser goes through them one by one
 * in course. For example, if you insert Chrome's descriptor as the first one,
 * more then a half of browsers will be described as Chrome, because they will pass
 * the Chrome descriptor's test.
 *
 * Descriptor's `test` could be a property with an array of RegExps, where every RegExp
 * will be applied to a UA string to test it whether it matches or not.
 * If a descriptor has two or more regexps in the `test` array it tests them one by one
 * with a logical sum operation. Parser stops if it has found any RegExp that matches the UA.
 *
 * Or `test` could be a method. In that case it gets a Parser instance and should
 * return true/false to get the Parser know if this browser descriptor matches the UA or not.
 */
var commonVersionIdentifier = /version\/(\d+(\.?_?\d+)+)/i;
var browsersList = [
/* Googlebot */
{
  test: [/googlebot/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Googlebot'
    };
    var version = Utils.getFirstMatch(/googlebot\/(\d+(\.\d+))/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* Opera < 13.0 */
{
  test: [/opera/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Opera'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:opera)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* Opera > 13.0 */
{
  test: [/opr\/|opios/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Opera'
    };
    var version = Utils.getFirstMatch(/(?:opr|opios)[\s/](\S+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/SamsungBrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Samsung Internet for Android'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:SamsungBrowser)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/Whale/i],
  describe: function describe(ua) {
    var browser = {
      name: 'NAVER Whale Browser'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:whale)[\s/](\d+(?:\.\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/MZBrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: 'MZ Browser'
    };
    var version = Utils.getFirstMatch(/(?:MZBrowser)[\s/](\d+(?:\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/focus/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Focus'
    };
    var version = Utils.getFirstMatch(/(?:focus)[\s/](\d+(?:\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/swing/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Swing'
    };
    var version = Utils.getFirstMatch(/(?:swing)[\s/](\d+(?:\.\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/coast/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Opera Coast'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:coast)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/opt\/\d+(?:.?_?\d+)+/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Opera Touch'
    };
    var version = Utils.getFirstMatch(/(?:opt)[\s/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/yabrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Yandex Browser'
    };
    var version = Utils.getFirstMatch(/(?:yabrowser)[\s/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/ucbrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: 'UC Browser'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:ucbrowser)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/Maxthon|mxios/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Maxthon'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:Maxthon|mxios)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/epiphany/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Epiphany'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:epiphany)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/puffin/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Puffin'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:puffin)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/sleipnir/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Sleipnir'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:sleipnir)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/k-meleon/i],
  describe: function describe(ua) {
    var browser = {
      name: 'K-Meleon'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/(?:k-meleon)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/micromessenger/i],
  describe: function describe(ua) {
    var browser = {
      name: 'WeChat'
    };
    var version = Utils.getFirstMatch(/(?:micromessenger)[\s/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/qqbrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: /qqbrowserlite/i.test(ua) ? 'QQ Browser Lite' : 'QQ Browser'
    };
    var version = Utils.getFirstMatch(/(?:qqbrowserlite|qqbrowser)[/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/msie|trident/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Internet Explorer'
    };
    var version = Utils.getFirstMatch(/(?:msie |rv:)(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/\sedg\//i],
  describe: function describe(ua) {
    var browser = {
      name: 'Microsoft Edge'
    };
    var version = Utils.getFirstMatch(/\sedg\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/edg([ea]|ios)/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Microsoft Edge'
    };
    var version = Utils.getSecondMatch(/edg([ea]|ios)\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/vivaldi/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Vivaldi'
    };
    var version = Utils.getFirstMatch(/vivaldi\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/seamonkey/i],
  describe: function describe(ua) {
    var browser = {
      name: 'SeaMonkey'
    };
    var version = Utils.getFirstMatch(/seamonkey\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/sailfish/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Sailfish'
    };
    var version = Utils.getFirstMatch(/sailfish\s?browser\/(\d+(\.\d+)?)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/silk/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Amazon Silk'
    };
    var version = Utils.getFirstMatch(/silk\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/phantom/i],
  describe: function describe(ua) {
    var browser = {
      name: 'PhantomJS'
    };
    var version = Utils.getFirstMatch(/phantomjs\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/slimerjs/i],
  describe: function describe(ua) {
    var browser = {
      name: 'SlimerJS'
    };
    var version = Utils.getFirstMatch(/slimerjs\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/blackberry|\bbb\d+/i, /rim\stablet/i],
  describe: function describe(ua) {
    var browser = {
      name: 'BlackBerry'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/blackberry[\d]+\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/(web|hpw)[o0]s/i],
  describe: function describe(ua) {
    var browser = {
      name: 'WebOS Browser'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua) || Utils.getFirstMatch(/w(?:eb)?[o0]sbrowser\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/bada/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Bada'
    };
    var version = Utils.getFirstMatch(/dolfin\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/tizen/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Tizen'
    };
    var version = Utils.getFirstMatch(/(?:tizen\s?)?browser\/(\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/qupzilla/i],
  describe: function describe(ua) {
    var browser = {
      name: 'QupZilla'
    };
    var version = Utils.getFirstMatch(/(?:qupzilla)[\s/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/firefox|iceweasel|fxios/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Firefox'
    };
    var version = Utils.getFirstMatch(/(?:firefox|iceweasel|fxios)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/electron/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Electron'
    };
    var version = Utils.getFirstMatch(/(?:electron)\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/MiuiBrowser/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Miui'
    };
    var version = Utils.getFirstMatch(/(?:MiuiBrowser)[\s/](\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/chromium/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Chromium'
    };
    var version = Utils.getFirstMatch(/(?:chromium)[\s/](\d+(\.?_?\d+)+)/i, ua) || Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/chrome|crios|crmo/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Chrome'
    };
    var version = Utils.getFirstMatch(/(?:chrome|crios|crmo)\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
}, {
  test: [/GSA/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Google Search'
    };
    var version = Utils.getFirstMatch(/(?:GSA)\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* Android Browser */
{
  test: function test(parser) {
    var notLikeAndroid = !parser.test(/like android/i);
    var butAndroid = parser.test(/android/i);
    return notLikeAndroid && butAndroid;
  },
  describe: function describe(ua) {
    var browser = {
      name: 'Android Browser'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* PlayStation 4 */
{
  test: [/playstation 4/i],
  describe: function describe(ua) {
    var browser = {
      name: 'PlayStation 4'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* Safari */
{
  test: [/safari|applewebkit/i],
  describe: function describe(ua) {
    var browser = {
      name: 'Safari'
    };
    var version = Utils.getFirstMatch(commonVersionIdentifier, ua);

    if (version) {
      browser.version = version;
    }

    return browser;
  }
},
/* Something else */
{
  test: [/.*/i],
  describe: function describe(ua) {
    /* Here we try to make sure that there are explicit details about the device
     * in order to decide what regexp exactly we want to apply
     * (as there is a specific decision based on that conclusion)
     */
    var regexpWithoutDeviceSpec = /^(.*)\/(.*) /;
    var regexpWithDeviceSpec = /^(.*)\/(.*)[ \t]\((.*)/;
    var hasDeviceSpec = ua.search('\\(') !== -1;
    var regexp = hasDeviceSpec ? regexpWithDeviceSpec : regexpWithoutDeviceSpec;
    return {
      name: Utils.getFirstMatch(regexp, ua),
      version: Utils.getSecondMatch(regexp, ua)
    };
  }
}];

var osParsersList = [
/* Roku */
{
  test: [/Roku\/DVP/],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/Roku\/DVP-(\d+\.\d+)/i, ua);
    return {
      name: OS_MAP.Roku,
      version: version
    };
  }
},
/* Windows Phone */
{
  test: [/windows phone/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/windows phone (?:os)?\s?(\d+(\.\d+)*)/i, ua);
    return {
      name: OS_MAP.WindowsPhone,
      version: version
    };
  }
},
/* Windows */
{
  test: [/windows /i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/Windows ((NT|XP)( \d\d?.\d)?)/i, ua);
    var versionName = Utils.getWindowsVersionName(version);
    return {
      name: OS_MAP.Windows,
      version: version,
      versionName: versionName
    };
  }
},
/* Firefox on iPad */
{
  test: [/Macintosh(.*?) FxiOS(.*?)\//],
  describe: function describe(ua) {
    var result = {
      name: OS_MAP.iOS
    };
    var version = Utils.getSecondMatch(/(Version\/)(\d[\d.]+)/, ua);

    if (version) {
      result.version = version;
    }

    return result;
  }
},
/* macOS */
{
  test: [/macintosh/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/mac os x (\d+(\.?_?\d+)+)/i, ua).replace(/[_\s]/g, '.');
    var versionName = Utils.getMacOSVersionName(version);
    var os = {
      name: OS_MAP.MacOS,
      version: version
    };

    if (versionName) {
      os.versionName = versionName;
    }

    return os;
  }
},
/* iOS */
{
  test: [/(ipod|iphone|ipad)/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/os (\d+([_\s]\d+)*) like mac os x/i, ua).replace(/[_\s]/g, '.');
    return {
      name: OS_MAP.iOS,
      version: version
    };
  }
},
/* Android */
{
  test: function test(parser) {
    var notLikeAndroid = !parser.test(/like android/i);
    var butAndroid = parser.test(/android/i);
    return notLikeAndroid && butAndroid;
  },
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/android[\s/-](\d+(\.\d+)*)/i, ua);
    var versionName = Utils.getAndroidVersionName(version);
    var os = {
      name: OS_MAP.Android,
      version: version
    };

    if (versionName) {
      os.versionName = versionName;
    }

    return os;
  }
},
/* WebOS */
{
  test: [/(web|hpw)[o0]s/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/(?:web|hpw)[o0]s\/(\d+(\.\d+)*)/i, ua);
    var os = {
      name: OS_MAP.WebOS
    };

    if (version && version.length) {
      os.version = version;
    }

    return os;
  }
},
/* BlackBerry */
{
  test: [/blackberry|\bbb\d+/i, /rim\stablet/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/rim\stablet\sos\s(\d+(\.\d+)*)/i, ua) || Utils.getFirstMatch(/blackberry\d+\/(\d+([_\s]\d+)*)/i, ua) || Utils.getFirstMatch(/\bbb(\d+)/i, ua);
    return {
      name: OS_MAP.BlackBerry,
      version: version
    };
  }
},
/* Bada */
{
  test: [/bada/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/bada\/(\d+(\.\d+)*)/i, ua);
    return {
      name: OS_MAP.Bada,
      version: version
    };
  }
},
/* Tizen */
{
  test: [/tizen/i],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/tizen[/\s](\d+(\.\d+)*)/i, ua);
    return {
      name: OS_MAP.Tizen,
      version: version
    };
  }
},
/* Linux */
{
  test: [/linux/i],
  describe: function describe() {
    return {
      name: OS_MAP.Linux
    };
  }
},
/* Chrome OS */
{
  test: [/CrOS/],
  describe: function describe() {
    return {
      name: OS_MAP.ChromeOS
    };
  }
},
/* Playstation 4 */
{
  test: [/PlayStation 4/],
  describe: function describe(ua) {
    var version = Utils.getFirstMatch(/PlayStation 4[/\s](\d+(\.\d+)*)/i, ua);
    return {
      name: OS_MAP.PlayStation4,
      version: version
    };
  }
}];

/*
 * Tablets go first since usually they have more specific
 * signs to detect.
 */

var platformParsersList = [
/* Googlebot */
{
  test: [/googlebot/i],
  describe: function describe() {
    return {
      type: 'bot',
      vendor: 'Google'
    };
  }
},
/* Huawei */
{
  test: [/huawei/i],
  describe: function describe(ua) {
    var model = Utils.getFirstMatch(/(can-l01)/i, ua) && 'Nova';
    var platform = {
      type: PLATFORMS_MAP.mobile,
      vendor: 'Huawei'
    };

    if (model) {
      platform.model = model;
    }

    return platform;
  }
},
/* Nexus Tablet */
{
  test: [/nexus\s*(?:7|8|9|10).*/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet,
      vendor: 'Nexus'
    };
  }
},
/* iPad */
{
  test: [/ipad/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet,
      vendor: 'Apple',
      model: 'iPad'
    };
  }
},
/* Firefox on iPad */
{
  test: [/Macintosh(.*?) FxiOS(.*?)\//],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet,
      vendor: 'Apple',
      model: 'iPad'
    };
  }
},
/* Amazon Kindle Fire */
{
  test: [/kftt build/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet,
      vendor: 'Amazon',
      model: 'Kindle Fire HD 7'
    };
  }
},
/* Another Amazon Tablet with Silk */
{
  test: [/silk/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet,
      vendor: 'Amazon'
    };
  }
},
/* Tablet */
{
  test: [/tablet(?! pc)/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet
    };
  }
},
/* iPod/iPhone */
{
  test: function test(parser) {
    var iDevice = parser.test(/ipod|iphone/i);
    var likeIDevice = parser.test(/like (ipod|iphone)/i);
    return iDevice && !likeIDevice;
  },
  describe: function describe(ua) {
    var model = Utils.getFirstMatch(/(ipod|iphone)/i, ua);
    return {
      type: PLATFORMS_MAP.mobile,
      vendor: 'Apple',
      model: model
    };
  }
},
/* Nexus Mobile */
{
  test: [/nexus\s*[0-6].*/i, /galaxy nexus/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile,
      vendor: 'Nexus'
    };
  }
},
/* Mobile */
{
  test: [/[^-]mobi/i],
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile
    };
  }
},
/* BlackBerry */
{
  test: function test(parser) {
    return parser.getBrowserName(true) === 'blackberry';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile,
      vendor: 'BlackBerry'
    };
  }
},
/* Bada */
{
  test: function test(parser) {
    return parser.getBrowserName(true) === 'bada';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile
    };
  }
},
/* Windows Phone */
{
  test: function test(parser) {
    return parser.getBrowserName() === 'windows phone';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile,
      vendor: 'Microsoft'
    };
  }
},
/* Android Tablet */
{
  test: function test(parser) {
    var osMajorVersion = Number(String(parser.getOSVersion()).split('.')[0]);
    return parser.getOSName(true) === 'android' && osMajorVersion >= 3;
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tablet
    };
  }
},
/* Android Mobile */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'android';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.mobile
    };
  }
},
/* desktop */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'macos';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.desktop,
      vendor: 'Apple'
    };
  }
},
/* Windows */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'windows';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.desktop
    };
  }
},
/* Linux */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'linux';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.desktop
    };
  }
},
/* PlayStation 4 */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'playstation 4';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tv
    };
  }
},
/* Roku */
{
  test: function test(parser) {
    return parser.getOSName(true) === 'roku';
  },
  describe: function describe() {
    return {
      type: PLATFORMS_MAP.tv
    };
  }
}];

/*
 * More specific goes first
 */

var enginesParsersList = [
/* EdgeHTML */
{
  test: function test(parser) {
    return parser.getBrowserName(true) === 'microsoft edge';
  },
  describe: function describe(ua) {
    var isBlinkBased = /\sedg\//i.test(ua); // return blink if it's blink-based one

    if (isBlinkBased) {
      return {
        name: ENGINE_MAP.Blink
      };
    } // otherwise match the version and return EdgeHTML


    var version = Utils.getFirstMatch(/edge\/(\d+(\.?_?\d+)+)/i, ua);
    return {
      name: ENGINE_MAP.EdgeHTML,
      version: version
    };
  }
},
/* Trident */
{
  test: [/trident/i],
  describe: function describe(ua) {
    var engine = {
      name: ENGINE_MAP.Trident
    };
    var version = Utils.getFirstMatch(/trident\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      engine.version = version;
    }

    return engine;
  }
},
/* Presto */
{
  test: function test(parser) {
    return parser.test(/presto/i);
  },
  describe: function describe(ua) {
    var engine = {
      name: ENGINE_MAP.Presto
    };
    var version = Utils.getFirstMatch(/presto\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      engine.version = version;
    }

    return engine;
  }
},
/* Gecko */
{
  test: function test(parser) {
    var isGecko = parser.test(/gecko/i);
    var likeGecko = parser.test(/like gecko/i);
    return isGecko && !likeGecko;
  },
  describe: function describe(ua) {
    var engine = {
      name: ENGINE_MAP.Gecko
    };
    var version = Utils.getFirstMatch(/gecko\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      engine.version = version;
    }

    return engine;
  }
},
/* Blink */
{
  test: [/(apple)?webkit\/537\.36/i],
  describe: function describe() {
    return {
      name: ENGINE_MAP.Blink
    };
  }
},
/* WebKit */
{
  test: [/(apple)?webkit/i],
  describe: function describe(ua) {
    var engine = {
      name: ENGINE_MAP.WebKit
    };
    var version = Utils.getFirstMatch(/webkit\/(\d+(\.?_?\d+)+)/i, ua);

    if (version) {
      engine.version = version;
    }

    return engine;
  }
}];

/**
 * The main class that arranges the whole parsing process.
 */

var Parser = /*#__PURE__*/function () {
  /**
   * Create instance of Parser
   *
   * @param {String} UA User-Agent string
   * @param {Boolean} [skipParsing=false] parser can skip parsing in purpose of performance
   * improvements if you need to make a more particular parsing
   * like {@link Parser#parseBrowser} or {@link Parser#parsePlatform}
   *
   * @throw {Error} in case of empty UA String
   *
   * @constructor
   */
  function Parser(UA) {
    var skipParsing = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

    _classCallCheck(this, Parser);

    if (UA === void 0 || UA === null || UA === '') {
      throw new Error("UserAgent parameter can't be empty");
    }

    this._ua = UA;
    /**
     * @typedef ParsedResult
     * @property {Object} browser
     * @property {String|undefined} [browser.name]
     * Browser name, like `"Chrome"` or `"Internet Explorer"`
     * @property {String|undefined} [browser.version] Browser version as a String `"12.01.45334.10"`
     * @property {Object} os
     * @property {String|undefined} [os.name] OS name, like `"Windows"` or `"macOS"`
     * @property {String|undefined} [os.version] OS version, like `"NT 5.1"` or `"10.11.1"`
     * @property {String|undefined} [os.versionName] OS name, like `"XP"` or `"High Sierra"`
     * @property {Object} platform
     * @property {String|undefined} [platform.type]
     * platform type, can be either `"desktop"`, `"tablet"` or `"mobile"`
     * @property {String|undefined} [platform.vendor] Vendor of the device,
     * like `"Apple"` or `"Samsung"`
     * @property {String|undefined} [platform.model] Device model,
     * like `"iPhone"` or `"Kindle Fire HD 7"`
     * @property {Object} engine
     * @property {String|undefined} [engine.name]
     * Can be any of this: `WebKit`, `Blink`, `Gecko`, `Trident`, `Presto`, `EdgeHTML`
     * @property {String|undefined} [engine.version] String version of the engine
     */

    this.parsedResult = {};

    if (skipParsing !== true) {
      this.parse();
    }
  }
  /**
   * Get UserAgent string of current Parser instance
   * @return {String} User-Agent String of the current <Parser> object
   *
   * @public
   */


  _createClass(Parser, [{
    key: "getUA",
    value: function getUA() {
      return this._ua;
    }
    /**
     * Test a UA string for a regexp
     * @param {RegExp} regex
     * @return {Boolean}
     */

  }, {
    key: "test",
    value: function test(regex) {
      return regex.test(this._ua);
    }
    /**
     * Get parsed browser object
     * @return {Object}
     */

  }, {
    key: "parseBrowser",
    value: function parseBrowser() {
      var _this = this;

      this.parsedResult.browser = {};
      var browserDescriptor = Utils.find(browsersList, function (_browser) {
        if (typeof _browser.test === 'function') {
          return _browser.test(_this);
        }

        if (_browser.test instanceof Array) {
          return _browser.test.some(function (condition) {
            return _this.test(condition);
          });
        }

        throw new Error("Browser's test function is not valid");
      });

      if (browserDescriptor) {
        this.parsedResult.browser = browserDescriptor.describe(this.getUA());
      }

      return this.parsedResult.browser;
    }
    /**
     * Get parsed browser object
     * @return {Object}
     *
     * @public
     */

  }, {
    key: "getBrowser",
    value: function getBrowser() {
      if (this.parsedResult.browser) {
        return this.parsedResult.browser;
      }

      return this.parseBrowser();
    }
    /**
     * Get browser's name
     * @return {String} Browser's name or an empty string
     *
     * @public
     */

  }, {
    key: "getBrowserName",
    value: function getBrowserName(toLowerCase) {
      if (toLowerCase) {
        return String(this.getBrowser().name).toLowerCase() || '';
      }

      return this.getBrowser().name || '';
    }
    /**
     * Get browser's version
     * @return {String} version of browser
     *
     * @public
     */

  }, {
    key: "getBrowserVersion",
    value: function getBrowserVersion() {
      return this.getBrowser().version;
    }
    /**
     * Get OS
     * @return {Object}
     *
     * @example
     * this.getOS();
     * {
     *   name: 'macOS',
     *   version: '10.11.12'
     * }
     */

  }, {
    key: "getOS",
    value: function getOS() {
      if (this.parsedResult.os) {
        return this.parsedResult.os;
      }

      return this.parseOS();
    }
    /**
     * Parse OS and save it to this.parsedResult.os
     * @return {*|{}}
     */

  }, {
    key: "parseOS",
    value: function parseOS() {
      var _this2 = this;

      this.parsedResult.os = {};
      var os = Utils.find(osParsersList, function (_os) {
        if (typeof _os.test === 'function') {
          return _os.test(_this2);
        }

        if (_os.test instanceof Array) {
          return _os.test.some(function (condition) {
            return _this2.test(condition);
          });
        }

        throw new Error("Browser's test function is not valid");
      });

      if (os) {
        this.parsedResult.os = os.describe(this.getUA());
      }

      return this.parsedResult.os;
    }
    /**
     * Get OS name
     * @param {Boolean} [toLowerCase] return lower-cased value
     * @return {String} name of the OS — macOS, Windows, Linux, etc.
     */

  }, {
    key: "getOSName",
    value: function getOSName(toLowerCase) {
      var _this$getOS = this.getOS(),
          name = _this$getOS.name;

      if (toLowerCase) {
        return String(name).toLowerCase() || '';
      }

      return name || '';
    }
    /**
     * Get OS version
     * @return {String} full version with dots ('10.11.12', '5.6', etc)
     */

  }, {
    key: "getOSVersion",
    value: function getOSVersion() {
      return this.getOS().version;
    }
    /**
     * Get parsed platform
     * @return {{}}
     */

  }, {
    key: "getPlatform",
    value: function getPlatform() {
      if (this.parsedResult.platform) {
        return this.parsedResult.platform;
      }

      return this.parsePlatform();
    }
    /**
     * Get platform name
     * @param {Boolean} [toLowerCase=false]
     * @return {*}
     */

  }, {
    key: "getPlatformType",
    value: function getPlatformType() {
      var toLowerCase = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      var _this$getPlatform = this.getPlatform(),
          type = _this$getPlatform.type;

      if (toLowerCase) {
        return String(type).toLowerCase() || '';
      }

      return type || '';
    }
    /**
     * Get parsed platform
     * @return {{}}
     */

  }, {
    key: "parsePlatform",
    value: function parsePlatform() {
      var _this3 = this;

      this.parsedResult.platform = {};
      var platform = Utils.find(platformParsersList, function (_platform) {
        if (typeof _platform.test === 'function') {
          return _platform.test(_this3);
        }

        if (_platform.test instanceof Array) {
          return _platform.test.some(function (condition) {
            return _this3.test(condition);
          });
        }

        throw new Error("Browser's test function is not valid");
      });

      if (platform) {
        this.parsedResult.platform = platform.describe(this.getUA());
      }

      return this.parsedResult.platform;
    }
    /**
     * Get parsed engine
     * @return {{}}
     */

  }, {
    key: "getEngine",
    value: function getEngine() {
      if (this.parsedResult.engine) {
        return this.parsedResult.engine;
      }

      return this.parseEngine();
    }
    /**
     * Get engines's name
     * @return {String} Engines's name or an empty string
     *
     * @public
     */

  }, {
    key: "getEngineName",
    value: function getEngineName(toLowerCase) {
      if (toLowerCase) {
        return String(this.getEngine().name).toLowerCase() || '';
      }

      return this.getEngine().name || '';
    }
    /**
     * Get parsed platform
     * @return {{}}
     */

  }, {
    key: "parseEngine",
    value: function parseEngine() {
      var _this4 = this;

      this.parsedResult.engine = {};
      var engine = Utils.find(enginesParsersList, function (_engine) {
        if (typeof _engine.test === 'function') {
          return _engine.test(_this4);
        }

        if (_engine.test instanceof Array) {
          return _engine.test.some(function (condition) {
            return _this4.test(condition);
          });
        }

        throw new Error("Browser's test function is not valid");
      });

      if (engine) {
        this.parsedResult.engine = engine.describe(this.getUA());
      }

      return this.parsedResult.engine;
    }
    /**
     * Parse full information about the browser
     * @returns {Parser}
     */

  }, {
    key: "parse",
    value: function parse() {
      this.parseBrowser();
      this.parseOS();
      this.parsePlatform();
      this.parseEngine();
      return this;
    }
    /**
     * Get parsed result
     * @return {ParsedResult}
     */

  }, {
    key: "getResult",
    value: function getResult() {
      return Utils.assign({}, this.parsedResult);
    }
    /**
     * Check if parsed browser matches certain conditions
     *
     * @param {Object} checkTree It's one or two layered object,
     * which can include a platform or an OS on the first layer
     * and should have browsers specs on the bottom-laying layer
     *
     * @returns {Boolean|undefined} Whether the browser satisfies the set conditions or not.
     * Returns `undefined` when the browser is no described in the checkTree object.
     *
     * @example
     * const browser = Bowser.getParser(window.navigator.userAgent);
     * if (browser.satisfies({chrome: '>118.01.1322' }))
     * // or with os
     * if (browser.satisfies({windows: { chrome: '>118.01.1322' } }))
     * // or with platforms
     * if (browser.satisfies({desktop: { chrome: '>118.01.1322' } }))
     */

  }, {
    key: "satisfies",
    value: function satisfies(checkTree) {
      var _this5 = this;

      var platformsAndOSes = {};
      var platformsAndOSCounter = 0;
      var browsers = {};
      var browsersCounter = 0;
      var allDefinitions = Object.keys(checkTree);
      allDefinitions.forEach(function (key) {
        var currentDefinition = checkTree[key];

        if (typeof currentDefinition === 'string') {
          browsers[key] = currentDefinition;
          browsersCounter += 1;
        } else if (_typeof(currentDefinition) === 'object') {
          platformsAndOSes[key] = currentDefinition;
          platformsAndOSCounter += 1;
        }
      });

      if (platformsAndOSCounter > 0) {
        var platformsAndOSNames = Object.keys(platformsAndOSes);
        var OSMatchingDefinition = Utils.find(platformsAndOSNames, function (name) {
          return _this5.isOS(name);
        });

        if (OSMatchingDefinition) {
          var osResult = this.satisfies(platformsAndOSes[OSMatchingDefinition]);

          if (osResult !== void 0) {
            return osResult;
          }
        }

        var platformMatchingDefinition = Utils.find(platformsAndOSNames, function (name) {
          return _this5.isPlatform(name);
        });

        if (platformMatchingDefinition) {
          var platformResult = this.satisfies(platformsAndOSes[platformMatchingDefinition]);

          if (platformResult !== void 0) {
            return platformResult;
          }
        }
      }

      if (browsersCounter > 0) {
        var browserNames = Object.keys(browsers);
        var matchingDefinition = Utils.find(browserNames, function (name) {
          return _this5.isBrowser(name, true);
        });

        if (matchingDefinition !== void 0) {
          return this.compareVersion(browsers[matchingDefinition]);
        }
      }

      return undefined;
    }
    /**
     * Check if the browser name equals the passed string
     * @param browserName The string to compare with the browser name
     * @param [includingAlias=false] The flag showing whether alias will be included into comparison
     * @returns {boolean}
     */

  }, {
    key: "isBrowser",
    value: function isBrowser(browserName) {
      var includingAlias = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var defaultBrowserName = this.getBrowserName().toLowerCase();
      var browserNameLower = browserName.toLowerCase();
      var alias = Utils.getBrowserTypeByAlias(browserNameLower);

      if (includingAlias && alias) {
        browserNameLower = alias.toLowerCase();
      }

      return browserNameLower === defaultBrowserName;
    }
  }, {
    key: "compareVersion",
    value: function compareVersion(version) {
      var expectedResults = [0];
      var comparableVersion = version;
      var isLoose = false;
      var currentBrowserVersion = this.getBrowserVersion();

      if (typeof currentBrowserVersion !== 'string') {
        return void 0;
      }

      if (version[0] === '>' || version[0] === '<') {
        comparableVersion = version.substr(1);

        if (version[1] === '=') {
          isLoose = true;
          comparableVersion = version.substr(2);
        } else {
          expectedResults = [];
        }

        if (version[0] === '>') {
          expectedResults.push(1);
        } else {
          expectedResults.push(-1);
        }
      } else if (version[0] === '=') {
        comparableVersion = version.substr(1);
      } else if (version[0] === '~') {
        isLoose = true;
        comparableVersion = version.substr(1);
      }

      return expectedResults.indexOf(Utils.compareVersions(currentBrowserVersion, comparableVersion, isLoose)) > -1;
    }
  }, {
    key: "isOS",
    value: function isOS(osName) {
      return this.getOSName(true) === String(osName).toLowerCase();
    }
  }, {
    key: "isPlatform",
    value: function isPlatform(platformType) {
      return this.getPlatformType(true) === String(platformType).toLowerCase();
    }
  }, {
    key: "isEngine",
    value: function isEngine(engineName) {
      return this.getEngineName(true) === String(engineName).toLowerCase();
    }
    /**
     * Is anything? Check if the browser is called "anything",
     * the OS called "anything" or the platform called "anything"
     * @param {String} anything
     * @param [includingAlias=false] The flag showing whether alias will be included into comparison
     * @returns {Boolean}
     */

  }, {
    key: "is",
    value: function is(anything) {
      var includingAlias = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      return this.isBrowser(anything, includingAlias) || this.isOS(anything) || this.isPlatform(anything);
    }
    /**
     * Check if any of the given values satisfies this.is(anything)
     * @param {String[]} anythings
     * @returns {Boolean}
     */

  }, {
    key: "some",
    value: function some() {
      var _this6 = this;

      var anythings = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
      return anythings.some(function (anything) {
        return _this6.is(anything);
      });
    }
  }]);

  return Parser;
}();

/**
 * Bowser class.
 * Keep it simple as much as it can be.
 * It's supposed to work with collections of {@link Parser} instances
 * rather then solve one-instance problems.
 * All the one-instance stuff is located in Parser class.
 *
 * @class
 * @classdesc Bowser is a static object, that provides an API to the Parsers
 * @hideconstructor
 */

var Bowser = /*#__PURE__*/function () {
  function Bowser() {
    _classCallCheck(this, Bowser);
  }

  _createClass(Bowser, null, [{
    key: "getParser",

    /**
     * Creates a {@link Parser} instance
     *
     * @param {String} UA UserAgent string
     * @param {Boolean} [skipParsing=false] Will make the Parser postpone parsing until you ask it
     * explicitly. Same as `skipParsing` for {@link Parser}.
     * @returns {Parser}
     * @throws {Error} when UA is not a String
     *
     * @example
     * const parser = Bowser.getParser(window.navigator.userAgent);
     * const result = parser.getResult();
     */
    value: function getParser(UA) {
      var skipParsing = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      if (typeof UA !== 'string') {
        throw new Error('UserAgent should be a string');
      }

      return new Parser(UA, skipParsing);
    }
    /**
     * Creates a {@link Parser} instance and runs {@link Parser.getResult} immediately
     *
     * @param UA
     * @return {ParsedResult}
     *
     * @example
     * const result = Bowser.parse(window.navigator.userAgent);
     */

  }, {
    key: "parse",
    value: function parse(UA) {
      return new Parser(UA).getResult();
    }
  }, {
    key: "BROWSER_MAP",
    get: function get() {
      return BROWSER_MAP;
    }
  }, {
    key: "ENGINE_MAP",
    get: function get() {
      return ENGINE_MAP;
    }
  }, {
    key: "OS_MAP",
    get: function get() {
      return OS_MAP;
    }
  }, {
    key: "PLATFORMS_MAP",
    get: function get() {
      return PLATFORMS_MAP;
    }
  }]);

  return Bowser;
}();

window.BOWSER = Bowser;
function deviceInfo () {
  var ua = navigator.userAgent;
  var browser = Bowser.getParser(ua);
  var flag;
  if (browser.satisfies({
    chrome: '>=0',
    chromium: '>=0'
  })) flag = 'chrome';else if (browser.satisfies({
    firefox: '>=0'
  })) flag = 'firefox';else if (browser.satisfies({
    safari: '>=0'
  })) flag = 'safari';else if (browser.satisfies({
    opera: '>=0'
  })) flag = 'opera';else if (browser.satisfies({
    'microsoft edge': '>=0'
  })) flag = 'edge';else flag = 'unknown';
  return {
    flag: flag,
    name: browser.getBrowserName(),
    version: browser.getBrowserVersion()
  };
}

function registerFunctions$1(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name getMe
   * @returns {Object}
   */
  app.$zeyeClient.getMe = function () {
    return store.state.zeyeClient.me;
  };
  /**
   * @method
   * @param peerId?
   * @param displayName?
   * @returns {void}
   */


  app.$zeyeClient.setMe = function (peerId, displayName) {
    peerId = peerId !== undefined ? peerId : randomString(6);
    displayName = displayName !== undefined ? displayName : randomName();
    store.commit('zeyeClient/me/setMe', {
      peerId: peerId,
      displayName: displayName,
      device: deviceInfo()
    });
  };
  /**
   * @method
   * @name getWebcamState
   * @returns {string}
   */


  app.$zeyeClient.getWebcamState = function () {
    var webcamState;

    if (!app.$zeyeClient.getMe().canSendWebcam) {
      webcamState = 'unsupported';
    } else if (app.$zeyeClient.getVideoProducer() && app.$zeyeClient.getVideoProducer().type !== 'share') {
      webcamState = 'on';
    } else {
      webcamState = 'off';
    }

    return webcamState;
  };
  /**
   * @method
   * @name canIChangeWebcam
   * @returns {boolean}
   */


  app.$zeyeClient.canIChangeWebcam = function () {
    return app.$zeyeClient.getVideoProducer() && app.$zeyeClient.getVideoProducer().type !== 'share' && app.$zeyeClient.getMe().canChangeWebcam;
  };
  /**
   * @method
   * @name getScreenShareState
   * @returns {string}
   */


  app.$zeyeClient.getScreenShareState = function () {
    return app.$zeyeClient.getVideoProducer() && app.$zeyeClient.getVideoProducer().type === 'share' ? 'on' : 'off';
  };
  /**
   * @method
   * @name getMicAvailability
   * @returns {string}
   */


  app.$zeyeClient.getMicState = function () {
    var micState;

    if (!app.$zeyeClient.getMe().canSendMic) {
      micState = 'unsupported';
    } else if (!app.$zeyeClient.getAudioProducer()) {
      micState = 'unsupported';
    } else if (!app.$zeyeClient.getAudioProducer().paused) {
      micState = 'on';
    } else {
      micState = 'off';
    }

    return micState;
  };
  /**
   * @method
   * @name toggleWebcam
   */


  app.$zeyeClient.toggleWebcam = function () {
    if (app.$zeyeClient.getWebcamState() === 'on') {
      setDevices({
        webcamEnabled: false
      });
      app.$zeyeClient.disableWebcam();
    } else {
      setDevices({
        webcamEnabled: true
      });
      app.$zeyeClient.enableWebcam();
    }
  };
  /**
   * @method toggleShare
   * @name toggleShare
   */


  app.$zeyeClient.toggleShare = /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee() {
    return regenerator.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            if (!(app.$zeyeClient.getScreenShareState() === 'on')) {
              _context.next = 5;
              break;
            }

            _context.next = 3;
            return app.$zeyeClient.enableWebcam();

          case 3:
            _context.next = 7;
            break;

          case 5:
            _context.next = 7;
            return app.$zeyeClient.enableShare();

          case 7:
            // Producer tracks most probably updated after theese actions,
            // so event is emitted to be caught in zeyePeerMedia component
            app.$zeyeClient.$bus.$emit('update-my-media');

          case 8:
          case "end":
            return _context.stop();
        }
      }
    }, _callee);
  }));
  /**
   * @method
   * @name toggleMicState
   */

  app.$zeyeClient.toggleMicState = function () {
    app.$zeyeClient.getMicState() === 'on' ? app.$zeyeClient.muteMic() : app.$zeyeClient.unmuteMic();
  };
  /**
   * @method
   * @name updateAudioOutputDevices
   */


  app.$zeyeClient.updateAudioOutputDevices = /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee2() {
    var devices;
    return regenerator.wrap(function _callee2$(_context2) {
      while (1) {
        switch (_context2.prev = _context2.next) {
          case 0:
            _context2.next = 2;
            return navigator.mediaDevices.enumerateDevices();

          case 2:
            devices = _context2.sent;
            app.$zeyeClient._outputDevices = devices.filter(function (device) {
              return device.kind === 'audiooutput';
            }); // if none current output set in store then it is definitely default one

            if (app.$zeyeClient.getMe().currentAudioOutputDevice === null) {
              app.$zeyeClient.store.commit('zeyeClient/me/setCurrentAudioOutputDevice', {
                currentAudioOutputDevice: app.$zeyeClient._outputDevices[0]
              });
            }

          case 5:
          case "end":
            return _context2.stop();
        }
      }
    }, _callee2);
  }));
  /**
   * @method
   * @name getAudioOutputDevices
   * @returns Array<MediaDeviceInfo>
   */

  app.$zeyeClient.getAudioOutputDevices = function () {
    return app.$zeyeClient._outputDevices;
  };
  /**
   * @method
   * @name getOutputDevices
   * @returns Object
   */


  app.$zeyeClient.getCurrentAudioOutputDevice = function () {
    return app.$zeyeClient.getMe().currentAudioOutputDevice;
  };
  /**
   * @method
   * @name setAudioOutputDevice
   * @param device
   */


  app.$zeyeClient.setAudioOutputDevice = function (device) {
    app.$zeyeClient.store.commit('zeyeClient/me/setCurrentAudioOutputDevice', {
      currentAudioOutputDevice: device
    });
    app.$zeyeClient.$bus.$emit('set-output-device-id', device.deviceId);
  };
}

function registerFunctions$2(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name isConnected
   * @returns {string}
   */
  app.$zeyeClient.isConnected = function () {
    return store.state.zeyeClient.room.state === 'connected';
  };
  /**
   * @method
   * @name getGlobalAudioMuted
   * @returns {string}
   */


  app.$zeyeClient.getGlobalAudioMuted = function () {
    return store.state.zeyeClient.me.audioMuted;
  };
  /**
   * @method
   * @name getGlobalVideoMuted
   * @returns {string}
   */


  app.$zeyeClient.getVideoVisible = function (peerId) {
    return Boolean(app.$zeyeClient.getVideoConsumer(peerId)) && !app.$zeyeClient.getVideoConsumer(peerId).locallyPaused && !app.$zeyeClient.getVideoConsumer(peerId).remotelyPaused;
  };
}

function registerFunctions$3(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name getProducers
   * @returns {Object}
   */
  app.$zeyeClient.getProducers = function () {
    return store.state.zeyeClient.producers.producers;
  };
  /**
   * @method
   * @name getAudioProducer
   * @returns {Object}
   */


  app.$zeyeClient.getAudioProducer = function () {
    return app.$zeyeClient.getProducers().find(function (producer) {
      return producer.track.kind === 'audio';
    });
  };
  /**
   * @method
   * @name getVideoProducer
   * @returns {Object}
   */


  app.$zeyeClient.getVideoProducer = function () {
    return app.$zeyeClient.getProducers().find(function (producer) {
      return producer.track.kind === 'video';
    });
  };
}

function registerFunctions$4(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name getPeers
   * @returns {Array}
   */
  app.$zeyeClient.getPeers = function () {
    return store.state.zeyeClient.peers.peers;
  };
  /**
   * @method
   * @name getPeers
   * @param peerId
   * @returns {Array}
   */


  app.$zeyeClient.getPeer = function (peerId) {
    return store.state.zeyeClient.peers.peers.find(function (peer) {
      return peer.id === peerId;
    });
  };
}

function registerFunctions$5(_ref) {
  var app = _ref.app,
      store = _ref.store;

  /**
   * @method
   * @name getConsumers
   * @returns {Array}
   */
  app.$zeyeClient.getConsumers = function () {
    return store.state.zeyeClient.consumers.consumers;
  };
  /**
   * @method
   * @param peerId
   * @returns {*}
   */


  app.$zeyeClient.getAudioConsumer = function (peerId) {
    var consumersArray = app.$zeyeClient.getPeer(peerId).consumers.map(function (consumerId) {
      return store.state.zeyeClient.consumers.consumers.find(function (consumer) {
        return consumer.id === consumerId;
      });
    });
    return consumersArray.filter(function (consumer) {
      return !!consumer;
    }).find(function (consumer) {
      return consumer.track.kind === 'audio';
    });
  };
  /**
   * @method
   * @param peerId
   * @returns {*}
   */


  app.$zeyeClient.getVideoConsumer = function (peerId) {
    var consumersArray = app.$zeyeClient.getPeer(peerId).consumers.map(function (consumerId) {
      return store.state.zeyeClient.consumers.consumers.find(function (consumer) {
        return consumer.id === consumerId;
      });
    });
    return consumersArray.filter(function (consumer) {
      return !!consumer;
    }).find(function (consumer) {
      return consumer.track.kind === 'video';
    });
  };
}

function registerFunctions$6(_ref) {
  var app = _ref.app,
      store = _ref.store;
  registerFunctions({
    app: app,
    store: store
  });
  registerFunctions$1({
    app: app,
    store: store
  });
  registerFunctions$2({
    app: app,
    store: store
  });
  registerFunctions$3({
    app: app,
    store: store
  });
  registerFunctions$5({
    app: app,
    store: store
  });
  registerFunctions$4({
    app: app,
    store: store
  });
}
/**
 ** In case you`ll ever need computed property
 **

 Object.defineProperties(app.$zeyeClient, {
    amIActiveSpeaker: {
      get() {
        return (
          store.state.zeyeClient.me.id ===
          store.state.zeyeClient.room.activeSpeakerId
        )
      }
    }
  })
*/

function getProtooUrl(_ref) {
  var roomId = _ref.roomId,
      peerId = _ref.peerId,
      protooHostname = _ref.protooHostname,
      protooPort = _ref.protooPort,
      authToken = _ref.authToken;
  protooHostname = protooHostname !== undefined ? protooHostname : 'localhost';
  protooPort = protooPort !== undefined ? protooPort : '4443';
  authToken = authToken !== undefined ? authToken : '';
  return "wss://".concat(protooHostname, ":").concat(protooPort, "/?roomId=").concat(roomId, "&peerId=").concat(peerId, "&authToken=").concat(authToken);
}

var VIDEO_CONSTRAINS = {
  qvga: {
    width: {
      ideal: 320
    },
    height: {
      ideal: 240
    }
  },
  vga: {
    width: {
      ideal: 640
    },
    height: {
      ideal: 480
    }
  },
  hd: {
    width: {
      ideal: 1280
    },
    height: {
      ideal: 720
    }
  }
};
var PC_PROPRIETARY_CONSTRAINTS = {
  optional: [{
    googDscp: true
  }]
};
var VIDEO_SIMULCAST_ENCODINGS = [{
  scaleResolutionDownBy: 4
}, {
  scaleResolutionDownBy: 2
}, {
  scaleResolutionDownBy: 1
}]; // Used for VP9 webcam video.

var VIDEO_KSVC_ENCODINGS = [{
  scalabilityMode: 'S3T3_KEY'
}]; // Used for VP9 desktop sharing.

var VIDEO_SVC_ENCODINGS = [{
  scalabilityMode: 'S3T3',
  dtx: true
}];

var ZeyeClient = /*#__PURE__*/function () {
  function ZeyeClient(_ref) {
    var store = _ref.store,
        forceH264 = _ref.forceH264,
        forceVP9 = _ref.forceVP9;

    _classCallCheck(this, ZeyeClient);

    // Vue Store
    this.store = store; // Closed flag.
    // @type {Boolean}

    this._closed = false; // Whether we want to produce audio/video.
    // @type {Boolean}

    this._produce = true; // Whether we should consume.
    // @type {Boolean}

    this._consume = true; // Whether we want DataChannels.
    // @type {Boolean}

    this._useDataChannel = true; // External video.
    // @type {HTMLVideoElement}

    this._externalVideo = null; // MediaStream of the external video.
    // @type {MediaStream}

    this._externalVideoStream = null; // Next expected dataChannel test _useDataChannelnumber.
    // @type {Number}

    this._nextDataChannelTestNumber = 0; // Protoo URL.
    // @type {String}

    this._protooUrl = null; // protoo-client Peer instance.
    // @type {protooClient.Peer}

    this._protoo = null; // mediasoup-client Device instance.
    // @type {mediasoupClient.Device}

    this._mediasoupDevice = null; // mediasoup Transport for sending.
    // @type {mediasoupClient.Transport}

    this._sendTransport = null; // mediasoup Transport for receiving.
    // @type {mediasoupClient.Transport}

    this._recvTransport = null; // Local mic mediasoup Producer.
    // @type {mediasoupClient.Producer}

    this._micProducer = null; // Local webcam mediasoup Producer.
    // @type {mediasoupClient.Producer}

    this._webcamProducer = null; // Local share mediasoup Producer.
    // @type {mediasoupClient.Producer}

    this._shareProducer = null; // Local chat DataProducer.
    // @type {mediasoupClient.DataProducer}

    this._chatDataProducer = null; // Local bot DataProducer.
    // @type {mediasoupClient.DataProducer}

    this._botDataProducer = null; // mediasoup Consumers.
    // @type {Map<String, mediasoupClient.Consumer>}

    this._consumers = new Map(); // mediasoup DataConsumers.
    // @type {Map<String, mediasoupClient.DataConsumer>}

    this._dataConsumers = new Map(); // Map of webcam MediaDeviceInfos indexed by deviceId.
    // @type {Map<String, MediaDeviceInfos>}

    this._webcams = new Map(); // Array of output audio MediaDeviceInfos indexed by deviceId.
    // @type {Array<MediaDeviceInfos>}

    this._outputDevices = []; // Local Webcam.
    // @type {Object} with:
    // - {MediaDeviceInfo} [device]
    // - {String} [resolution] - 'qvga' / 'vga' / 'hd'.

    this._webcam = {
      device: null,
      resolution: 'hd'
    }; // Force H264 codec for sending.

    this._forceH264 = Boolean(forceH264); // Force VP9 codec for sending.

    this._forceVP9 = Boolean(forceVP9); // Inner signaling

    this.$bus = new Vue();
  }

  _createClass(ZeyeClient, [{
    key: "close",
    value: function close() {
      if (this._closed) return;
      this._closed = true;
      console.debug('close()');
      if (this._webcamProducer) this._webcamProducer.close();
      if (this._shareProducer) this._shareProducer.close(); // Close protoo Peer

      if (this._protoo) this._protoo.close(); // Close mediasoup Transports.

      if (this._sendTransport) this._sendTransport.close();
      if (this._recvTransport) this._recvTransport.close();
      this.store.commit('zeyeClient/room/setRoomState', {
        state: 'closed'
      });
    }
    /**
     *
     * @param roomId
     * @param peerId
     * @param displayName
     * @param protooHostname
     * @param protooPort
     * @param wsAuthEndpoint
     * @param wsAuthData
     */

  }, {
    key: "join",
    value: function () {
      var _join = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee2(_ref2) {
        var _this = this;

        var roomId, peerId, displayName, protooHostname, protooPort, wsAuthEndpoint, wsAuthData, authToken, response, protooTransport;
        return regenerator.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                roomId = _ref2.roomId, peerId = _ref2.peerId, displayName = _ref2.displayName, protooHostname = _ref2.protooHostname, protooPort = _ref2.protooPort, wsAuthEndpoint = _ref2.wsAuthEndpoint, wsAuthData = _ref2.wsAuthData;
                protooHostname = protooHostname !== undefined ? protooHostname : false;
                protooPort = protooPort !== undefined ? protooPort : false;
                wsAuthEndpoint = wsAuthEndpoint !== undefined ? wsAuthEndpoint : false;
                wsAuthData = wsAuthData !== undefined ? wsAuthData : {};

                if (displayName !== undefined) {
                  this._displayName = displayName;
                } else if (getUser() && getUser().displayName) {
                  this._displayName = getUser().displayName;
                } else {
                  this._displayName = randomName();
                }

                this.setMe(peerId, this._displayName);
                authToken = false;
                /*
                  wsAuthEndpoint is an authentication backend api POST endpoint which
                  in exchange for current session cookies and\or wsAuthData
                  will ask backend to store a short lived (e.g. 1 minute) one-time use token (e.g. in DB)
                  with some random string in it and send that token back
                   Given token must be present in protocol url, so that zeye-server could check it against DB.
                  Token should be removed from DB afterwards.
                   Typical flow:
                  1. User wants to connect
                  2. wsAuthEndpoint will return either authToken or empty string (or HTTP 401 for which means empty authTicket as well)
                  3. getProtooUrl will form url with authToken
                  4. zeye-server if configured to allow guests will open wss as usual
                  5. zeye-server if configured to check authorization will check given ticket in DB and remove it from DB afterwards
                 */

                if (!wsAuthEndpoint) {
                  _context2.next = 13;
                  break;
                }

                _context2.next = 11;
                return axios.post(wsAuthEndpoint, wsAuthData, {
                  withCredentials: true
                });

              case 11:
                response = _context2.sent;
                authToken = response.data;

              case 13:
                this._protooUrl = getProtooUrl({
                  roomId: roomId,
                  peerId: peerId,
                  protooHostname: protooHostname,
                  protooPort: protooPort,
                  authToken: authToken
                });
                protooTransport = new protooClient.WebSocketTransport(this._protooUrl);
                this._protoo = new protooClient.Peer(protooTransport);
                this.store.commit('zeyeClient/room/setRoomState', {
                  state: 'connecting'
                });

                this._protoo.on('open', function () {
                  return _this._joinRoom();
                });

                this._protoo.on('failed', function () {
                  _this.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'WebSocket connection failed'
                  });
                });

                this._protoo.on('disconnected', function () {
                  _this.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'WebSocket disconnected'
                  }); // Close mediasoup Transports.


                  if (_this._sendTransport) {
                    _this._sendTransport.close();

                    _this._sendTransport = null;
                  }

                  if (_this._recvTransport) {
                    _this._recvTransport.close();

                    _this._recvTransport = null;
                  }

                  _this.store.commit('zeyeClient/room/setRoomState', {
                    state: 'closed'
                  });
                });

                this._protoo.on('close', function () {
                  if (_this._closed) return;

                  _this.close();
                }); // eslint-disable-next-line no-unused-vars


                this._protoo.on('request', /*#__PURE__*/function () {
                  var _ref3 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee(request, accept, reject) {
                    var _request$data, _peerId2, producerId, id, kind, rtpParameters, type, appData, producerPaused, consumer, _mediasoupClient$pars, spatialLayers, temporalLayers, _request$data2, _peerId3, dataProducerId, _id, sctpStreamParameters, label, protocol, _appData, dataConsumer;

                    return regenerator.wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            console.debug('proto "request" event [method:%s, data:%o]', request.method, request.data);
                            _context.t0 = request.method;
                            _context.next = _context.t0 === 'newConsumer' ? 4 : _context.t0 === 'newDataConsumer' ? 27 : 56;
                            break;

                          case 4:
                            if (_this._consume) {
                              _context.next = 7;
                              break;
                            }

                            reject(403, 'I do not want to consume');
                            return _context.abrupt("break", 56);

                          case 7:
                            _request$data = request.data, _peerId2 = _request$data.peerId, producerId = _request$data.producerId, id = _request$data.id, kind = _request$data.kind, rtpParameters = _request$data.rtpParameters, type = _request$data.type, appData = _request$data.appData, producerPaused = _request$data.producerPaused;
                            _context.prev = 8;
                            _context.next = 11;
                            return _this._recvTransport.consume({
                              id: id,
                              producerId: producerId,
                              kind: kind,
                              rtpParameters: rtpParameters,
                              appData: _objectSpread2(_objectSpread2({}, appData), {}, {
                                peerId: _peerId2
                              }) // Trick.

                            });

                          case 11:
                            consumer = _context.sent;

                            // Store in the map.
                            _this._consumers.set(consumer.id, consumer);

                            consumer.on('transportclose', function () {
                              _this._consumers.delete(consumer.id);
                            });
                            _mediasoupClient$pars = parseScalabilityMode(consumer.rtpParameters.encodings[0].scalabilityMode), spatialLayers = _mediasoupClient$pars.spatialLayers, temporalLayers = _mediasoupClient$pars.temporalLayers;

                            _this.store.commit('zeyeClient/consumers/addConsumer', {
                              consumer: {
                                id: consumer.id,
                                type: type,
                                locallyPaused: false,
                                remotelyPaused: producerPaused,
                                rtpParameters: consumer.rtpParameters,
                                spatialLayers: spatialLayers,
                                temporalLayers: temporalLayers,
                                preferredSpatialLayer: spatialLayers - 1,
                                preferredTemporalLayer: temporalLayers - 1,
                                priority: 1,
                                codec: consumer.rtpParameters.codecs[0].mimeType.split('/')[1],
                                track: consumer.track
                              }
                            });

                            _this.store.commit('zeyeClient/peers/addConsumer', {
                              consumer: {
                                id: consumer.id
                              },
                              peerId: _peerId2
                            }); // We are ready. Answer the protoo request so the server will
                            // resume this Consumer (which was paused for now if video).


                            accept(); // If audio-only mode is enabled, pause it.

                            if (consumer.kind === 'video' && _this.store.state.zeyeClient.me.audioOnly) _this._pauseConsumer(consumer);
                            _context.next = 26;
                            break;

                          case 21:
                            _context.prev = 21;
                            _context.t1 = _context["catch"](8);
                            console.error('"newConsumer" request failed:%o', _context.t1);

                            _this.store.dispatch('zeyeClient/notify', {
                              type: 'error',
                              text: "Error creating a Consumer: ".concat(_context.t1)
                            });

                            throw _context.t1;

                          case 26:
                            return _context.abrupt("break", 56);

                          case 27:
                            if (_this._consume) {
                              _context.next = 30;
                              break;
                            }

                            reject(403, 'I do not want to data consume');
                            return _context.abrupt("break", 56);

                          case 30:
                            if (_this._useDataChannel) {
                              _context.next = 33;
                              break;
                            }

                            reject(403, 'I do not want DataChannels');
                            return _context.abrupt("break", 56);

                          case 33:
                            _request$data2 = request.data, _peerId3 = _request$data2.peerId, dataProducerId = _request$data2.dataProducerId, _id = _request$data2.id, sctpStreamParameters = _request$data2.sctpStreamParameters, label = _request$data2.label, protocol = _request$data2.protocol, _appData = _request$data2.appData;
                            _context.prev = 34;
                            _context.next = 37;
                            return _this._recvTransport.consumeData({
                              id: _id,
                              dataProducerId: dataProducerId,
                              sctpStreamParameters: sctpStreamParameters,
                              label: label,
                              protocol: protocol,
                              appData: _objectSpread2(_objectSpread2({}, _appData), {}, {
                                peerId: _peerId3
                              }) // Trick.

                            });

                          case 37:
                            dataConsumer = _context.sent;

                            // Store in the map.
                            _this._dataConsumers.set(dataConsumer.id, dataConsumer);

                            dataConsumer.on('transportclose', function () {
                              _this._dataConsumers.delete(dataConsumer.id);
                            });
                            dataConsumer.on('open', function () {
                              console.debug('DataConsumer "open" event');
                            });
                            dataConsumer.on('close', function () {
                              console.warn('DataConsumer "close" event');

                              _this._dataConsumers.delete(dataConsumer.id);

                              _this.store.dispatch('zeyeClient/notify', {
                                type: 'error',
                                text: 'DataConsumer closed'
                              });
                            });
                            dataConsumer.on('error', function (error) {
                              console.error('DataConsumer "error" event:%o', error);

                              _this.store.dispatch('zeyeClient/notify', {
                                type: 'error',
                                text: "DataConsumer error: ".concat(error)
                              });
                            });
                            dataConsumer.on('message', function (message) {
                              console.debug('DataConsumer "message" event [streamId:%d]', dataConsumer.sctpStreamParameters.streamId); // TODO: For debugging.

                              window.DC_MESSAGE = message;

                              if (message instanceof ArrayBuffer) {
                                var view = new DataView(message);
                                var number = view.getUint32();

                                if (number === Math.pow(2, 32) - 1) {
                                  console.warn('dataChannelTest finished!');
                                  _this._nextDataChannelTestNumber = 0;
                                  return;
                                }

                                if (number > _this._nextDataChannelTestNumber) {
                                  console.warn('dataChannelTest: %s packets missing', number - _this._nextDataChannelTestNumber);
                                }

                                _this._nextDataChannelTestNumber = number + 1;
                                return;
                              } else if (typeof message !== 'string') {
                                console.warn('ignoring DataConsumer "message" (not a string)');
                                return;
                              }

                              switch (dataConsumer.label) {
                                case 'chat':
                                  {
                                    var peers = _this.store.state.peers;
                                    var peersArray = Object.keys(peers).map(function (_peerId) {
                                      return peers[_peerId];
                                    });
                                    var sendingPeer = peersArray.find(function (peer) {
                                      return peer.dataConsumers.includes(dataConsumer.id);
                                    });

                                    if (!sendingPeer) {
                                      console.warn('DataConsumer "message" from unknown peer');
                                      break;
                                    }

                                    _this.store.dispatch('zeyeClient/notify', {
                                      title: "".concat(sendingPeer.displayName, " says:"),
                                      text: message,
                                      timeout: 5000
                                    });

                                    break;
                                  }

                                case 'bot':
                                  {
                                    _this.store.dispatch('zeyeClient/notify', {
                                      title: 'Message from Bot:',
                                      text: message,
                                      timeout: 5000
                                    });

                                    break;
                                  }
                              }
                            }); // TODO: REMOVE

                            window.DC = dataConsumer;

                            _this.store.commit('zeyeClient/dataConsumers/addDataConsumer', {
                              dataConsumer: {
                                id: dataConsumer.id,
                                sctpStreamParameters: dataConsumer.sctpStreamParameters,
                                label: dataConsumer.label,
                                protocol: dataConsumer.protocol
                              }
                            });

                            _this.store.commit('zeyeClient/peers/addDataConsumer', {
                              dataConsumer: {
                                id: dataConsumer.id
                              }
                            }); // We are ready. Answer the protoo request.


                            accept();
                            _context.next = 55;
                            break;

                          case 50:
                            _context.prev = 50;
                            _context.t2 = _context["catch"](34);
                            console.error('"newDataConsumer" request failed:%o', _context.t2);

                            _this.store.dispatch('zeyeClient/notify', {
                              type: 'error',
                              text: "Error creating a DataConsumer: ".concat(_context.t2)
                            });

                            throw _context.t2;

                          case 55:
                            return _context.abrupt("break", 56);

                          case 56:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee, null, [[8, 21], [34, 50]]);
                  }));

                  return function (_x2, _x3, _x4) {
                    return _ref3.apply(this, arguments);
                  };
                }());

                this._protoo.on('notification', function (notification) {
                  console.debug('proto "notification" event [method:%s, data:%o]', notification.method, notification.data);

                  switch (notification.method) {
                    case 'chatMessage':
                      {
                        _this.store.commit('zeyeClient/chat/pushMessage', {
                          message: notification.data
                        });

                        break;
                      }

                    case 'producerScore':
                      {
                        var _notification$data = notification.data,
                            producerId = _notification$data.producerId,
                            score = _notification$data.score;

                        _this.store.commit('zeyeClient/producers/setProducerScore', {
                          producerId: producerId,
                          score: score
                        });

                        break;
                      }

                    case 'newPeer':
                      {
                        var peer = notification.data;

                        _this.store.commit('zeyeClient/peers/addPeer', {
                          peer: _objectSpread2(_objectSpread2({}, peer), {}, {
                            consumers: [],
                            dataConsumers: []
                          })
                        });

                        _this.store.dispatch('zeyeClient/notify', {
                          text: "".concat(peer.displayName, " has joined the room")
                        });

                        break;
                      }

                    case 'peerClosed':
                      {
                        var _peerId4 = notification.data.peerId;

                        _this.store.commit('zeyeClient/peers/removePeer', {
                          peerId: _peerId4
                        });

                        break;
                      }

                    case 'peerDisplayNameChanged':
                      {
                        var _notification$data2 = notification.data,
                            _peerId5 = _notification$data2.peerId,
                            _displayName = _notification$data2.displayName,
                            oldDisplayName = _notification$data2.oldDisplayName;

                        _this.store.commit('zeyeClient/peers/setPeerDisplayName', {
                          displayName: _displayName,
                          peerId: _peerId5
                        });

                        _this.store.dispatch('zeyeClient/notify', {
                          text: "".concat(oldDisplayName, " is now ").concat(_displayName)
                        });

                        break;
                      }

                    case 'consumerClosed':
                      {
                        var consumerId = notification.data.consumerId;

                        var consumer = _this._consumers.get(consumerId);

                        if (!consumer) break;
                        consumer.close();

                        _this._consumers.delete(consumerId);

                        var _peerId6 = consumer.appData.peerId; // TODO: probably move peer removers\adders into consumer removers\adders

                        _this.store.commit('zeyeClient/peers/removeConsumer', {
                          consumerId: consumerId,
                          peerId: _peerId6
                        });

                        _this.store.commit('zeyeClient/consumers/removeConsumer', {
                          consumerId: consumerId,
                          peerId: _peerId6
                        });

                        break;
                      }

                    case 'consumerPaused':
                      {
                        var _consumerId = notification.data.consumerId;

                        var _consumer = _this._consumers.get(_consumerId);

                        if (!_consumer) break;

                        _this.store.commit('zeyeClient/consumers/setConsumerPaused', {
                          consumerId: _consumerId,
                          originator: 'remote'
                        });

                        break;
                      }

                    case 'consumerResumed':
                      {
                        var _consumerId2 = notification.data.consumerId;

                        var _consumer2 = _this._consumers.get(_consumerId2);

                        if (!_consumer2) break;

                        _this.store.commit('zeyeClient/consumers/setConsumerResumed', {
                          consumerId: _consumerId2,
                          originator: 'remote'
                        });

                        break;
                      }

                    case 'consumerLayersChanged':
                      {
                        var _notification$data3 = notification.data,
                            _consumerId3 = _notification$data3.consumerId,
                            spatialLayer = _notification$data3.spatialLayer,
                            temporalLayer = _notification$data3.temporalLayer;

                        var _consumer3 = _this._consumers.get(_consumerId3);

                        if (!_consumer3) break;

                        _this.store.commit('zeyeClient/consumers/setConsumerCurrentLayers', {
                          consumerId: _consumerId3,
                          spatialLayer: spatialLayer,
                          temporalLayer: temporalLayer
                        });

                        break;
                      }

                    case 'consumerScore':
                      {
                        var _notification$data4 = notification.data,
                            _consumerId4 = _notification$data4.consumerId,
                            _score = _notification$data4.score;

                        _this.store.commit('zeyeClient/consumers/setConsumerScore', {
                          consumerId: _consumerId4,
                          score: _score
                        });

                        break;
                      }

                    case 'dataConsumerClosed':
                      {
                        var dataConsumerId = notification.data.dataConsumerId;

                        var dataConsumer = _this._dataConsumers.get(dataConsumerId);

                        if (!dataConsumer) break;
                        dataConsumer.close();

                        _this._dataConsumers.delete(dataConsumerId);

                        var _peerId7 = dataConsumer.appData.peerId;

                        _this.store.commit('zeyeClient/dataConsumers/removeDataConsumer', {
                          dataConsumerId: dataConsumerId,
                          peerId: _peerId7
                        });

                        break;
                      }

                    case 'activeSpeaker':
                      {
                        var _peerId8 = notification.data.peerId;

                        _this.store.commit('zeyeClient/room/setRoomActiveSpeaker', {
                          peerId: _peerId8
                        });

                        break;
                      }

                    default:
                      {
                        console.error('unknown protoo notification.method "%s"', notification.method);
                      }
                  }
                });

                this.ready = true;

              case 24:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function join(_x) {
        return _join.apply(this, arguments);
      }

      return join;
    }()
    /**
     *
     * @param {boolean} deNoise
     * @return {Promise<void>}
     */

  }, {
    key: "enableMic",
    value: function () {
      var _enableMic = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee3(deNoise) {
        var _this2 = this;

        var track, stream, _stream;

        return regenerator.wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                console.debug('enableMic()');

                if (!this._micProducer) {
                  _context3.next = 3;
                  break;
                }

                return _context3.abrupt("return");

              case 3:
                if (this._mediasoupDevice.canProduce('audio')) {
                  _context3.next = 6;
                  break;
                }

                console.error('enableMic() | cannot produce audio');
                return _context3.abrupt("return");

              case 6:
                _context3.prev = 6;

                if (this._externalVideo) {
                  _context3.next = 15;
                  break;
                }

                console.debug('enableMic() | calling getUserMedia()');
                _context3.next = 11;
                return navigator.mediaDevices.getUserMedia({
                  audio: true
                });

              case 11:
                stream = _context3.sent;
                track = stream.getAudioTracks()[0];
                _context3.next = 19;
                break;

              case 15:
                _context3.next = 17;
                return this._getExternalVideoStream();

              case 17:
                _stream = _context3.sent;
                track = _stream.getAudioTracks()[0].clone();

              case 19:
                _context3.next = 21;
                return this._sendTransport.produce({
                  track: track,
                  codecOptions: {
                    opusStereo: 1,
                    opusDtx: 1
                  } // NOTE: for testing codec selection.
                  // codec : this._mediasoupDevice.rtpCapabilities.codecs
                  // 	.find((codec) => codec.mimeType.toLowerCase() === 'audio/pcma')

                });

              case 21:
                this._micProducer = _context3.sent;
                this.store.commit('zeyeClient/producers/addProducer', {
                  producer: {
                    id: this._micProducer.id,
                    paused: this._micProducer.paused,
                    track: this._micProducer.track,
                    rtpParameters: this._micProducer.rtpParameters,
                    codec: this._micProducer.rtpParameters.codecs[0].mimeType.split('/')[1]
                  }
                });

                this._micProducer.on('transportclose', function () {
                  _this2._micProducer = null;
                });

                this._micProducer.on('trackended', function () {
                  _this2.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'Microphone disconnected!'
                  });

                  _this2.disableMic().catch(function () {});
                });

                _context3.next = 32;
                break;

              case 27:
                _context3.prev = 27;
                _context3.t0 = _context3["catch"](6);
                console.error('enableMic() | failed:%o', _context3.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error enabling microphone: ".concat(_context3.t0)
                });
                if (track) track.stop();

              case 32:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this, [[6, 27]]);
      }));

      function enableMic(_x5) {
        return _enableMic.apply(this, arguments);
      }

      return enableMic;
    }()
  }, {
    key: "disableMic",
    value: function () {
      var _disableMic = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee4() {
        return regenerator.wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                console.debug('disableMic()');

                if (this._micProducer) {
                  _context4.next = 3;
                  break;
                }

                return _context4.abrupt("return");

              case 3:
                this._micProducer.close();

                this.store.commit('zeyeClient/producers/removeProducer', {
                  producerId: this._micProducer.id
                });
                _context4.prev = 5;
                _context4.next = 8;
                return this._protoo.request('closeProducer', {
                  producerId: this._micProducer.id
                });

              case 8:
                _context4.next = 13;
                break;

              case 10:
                _context4.prev = 10;
                _context4.t0 = _context4["catch"](5);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error closing server-side mic Producer: ".concat(_context4.t0)
                });

              case 13:
                this._micProducer = null;

              case 14:
              case "end":
                return _context4.stop();
            }
          }
        }, _callee4, this, [[5, 10]]);
      }));

      function disableMic() {
        return _disableMic.apply(this, arguments);
      }

      return disableMic;
    }()
  }, {
    key: "muteMic",
    value: function () {
      var _muteMic = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee5() {
        return regenerator.wrap(function _callee5$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                console.debug('muteMic()');

                this._micProducer.pause();

                _context5.prev = 2;
                _context5.next = 5;
                return this._protoo.request('pauseProducer', {
                  producerId: this._micProducer.id
                });

              case 5:
                this.store.commit('zeyeClient/producers/setProducerPaused', {
                  producerId: this._micProducer.id
                });
                _context5.next = 12;
                break;

              case 8:
                _context5.prev = 8;
                _context5.t0 = _context5["catch"](2);
                console.error('muteMic() | failed: %o', _context5.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error pausing server-side mic Producer: ".concat(_context5.t0)
                });

              case 12:
              case "end":
                return _context5.stop();
            }
          }
        }, _callee5, this, [[2, 8]]);
      }));

      function muteMic() {
        return _muteMic.apply(this, arguments);
      }

      return muteMic;
    }()
  }, {
    key: "unmuteMic",
    value: function () {
      var _unmuteMic = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee6() {
        return regenerator.wrap(function _callee6$(_context6) {
          while (1) {
            switch (_context6.prev = _context6.next) {
              case 0:
                console.debug('unmuteMic()');

                this._micProducer.resume();

                _context6.prev = 2;
                _context6.next = 5;
                return this._protoo.request('resumeProducer', {
                  producerId: this._micProducer.id
                });

              case 5:
                this.store.commit('zeyeClient/producers/setProducerResumed', {
                  producerId: this._micProducer.id
                });
                _context6.next = 12;
                break;

              case 8:
                _context6.prev = 8;
                _context6.t0 = _context6["catch"](2);
                console.error('unmuteMic() | failed: %o', _context6.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error resuming server-side mic Producer: ".concat(_context6.t0)
                });

              case 12:
              case "end":
                return _context6.stop();
            }
          }
        }, _callee6, this, [[2, 8]]);
      }));

      function unmuteMic() {
        return _unmuteMic.apply(this, arguments);
      }

      return unmuteMic;
    }()
  }, {
    key: "enableWebcam",
    value: function () {
      var _enableWebcam = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee7() {
        var _this3 = this;

        var track, device, resolution, stream, _stream2, encodings, codec, codecOptions, firstVideoCodec;

        return regenerator.wrap(function _callee7$(_context7) {
          while (1) {
            switch (_context7.prev = _context7.next) {
              case 0:
                console.debug('enableWebcam()');

                if (!this._webcamProducer) {
                  _context7.next = 5;
                  break;
                }

                return _context7.abrupt("return");

              case 5:
                if (!this._shareProducer) {
                  _context7.next = 8;
                  break;
                }

                _context7.next = 8;
                return this.disableShare();

              case 8:
                if (this._mediasoupDevice.canProduce('video')) {
                  _context7.next = 11;
                  break;
                }

                console.error('enableWebcam() | cannot produce video');
                return _context7.abrupt("return");

              case 11:
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: true
                });
                _context7.prev = 12;

                if (this._externalVideo) {
                  _context7.next = 27;
                  break;
                }

                _context7.next = 16;
                return this._updateWebcams();

              case 16:
                device = this._webcam.device;
                resolution = this._webcam.resolution;

                if (device) {
                  _context7.next = 20;
                  break;
                }

                throw new Error('no webcam devices');

              case 20:
                console.debug('enableWebcam() | calling getUserMedia()');
                _context7.next = 23;
                return navigator.mediaDevices.getUserMedia({
                  video: _objectSpread2({
                    deviceId: {
                      ideal: device.deviceId
                    }
                  }, VIDEO_CONSTRAINS[resolution])
                });

              case 23:
                stream = _context7.sent;
                track = stream.getVideoTracks()[0];
                _context7.next = 32;
                break;

              case 27:
                device = {
                  label: 'external video'
                };
                _context7.next = 30;
                return this._getExternalVideoStream();

              case 30:
                _stream2 = _context7.sent;
                track = _stream2.getVideoTracks()[0].clone();

              case 32:
                codecOptions = {
                  videoGoogleStartBitrate: 1000
                };

                if (!this._forceH264) {
                  _context7.next = 39;
                  break;
                }

                codec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                  return c.mimeType.toLowerCase() === 'video/h264';
                });

                if (codec) {
                  _context7.next = 37;
                  break;
                }

                throw new Error('desired H264 codec+configuration is not supported');

              case 37:
                _context7.next = 43;
                break;

              case 39:
                if (!this._forceVP9) {
                  _context7.next = 43;
                  break;
                }

                codec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                  return c.mimeType.toLowerCase() === 'video/vp9';
                });

                if (codec) {
                  _context7.next = 43;
                  break;
                }

                throw new Error('desired VP9 codec+configuration is not supported');

              case 43:
                if (this._useSimulcast) {
                  // If VP9 is the only available video codec then use SVC.
                  firstVideoCodec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                    return c.kind === 'video';
                  });

                  if (this._forceVP9 && codec || firstVideoCodec.mimeType.toLowerCase() === 'video/vp9') {
                    encodings = VIDEO_KSVC_ENCODINGS;
                  } else {
                    encodings = VIDEO_SIMULCAST_ENCODINGS;
                  }
                }

                _context7.next = 46;
                return this._sendTransport.produce({
                  track: track,
                  encodings: encodings,
                  codecOptions: codecOptions,
                  codec: codec
                });

              case 46:
                this._webcamProducer = _context7.sent;
                this.store.commit('zeyeClient/producers/addProducer', {
                  producer: {
                    id: this._webcamProducer.id,
                    deviceLabel: device.label,
                    type: this._getWebcamType(device),
                    paused: this._webcamProducer.paused,
                    track: this._webcamProducer.track,
                    rtpParameters: this._webcamProducer.rtpParameters,
                    codec: this._webcamProducer.rtpParameters.codecs[0].mimeType.split('/')[1]
                  }
                });

                this._webcamProducer.on('transportclose', function () {
                  _this3._webcamProducer = null;
                });

                this._webcamProducer.on('trackended', function () {
                  _this3.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'Webcam disconnected!'
                  });

                  _this3.disableWebcam().catch(function () {});
                });

                _context7.next = 57;
                break;

              case 52:
                _context7.prev = 52;
                _context7.t0 = _context7["catch"](12);
                console.error('enableWebcam() | failed:%o', _context7.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error enabling webcam: ".concat(_context7.t0)
                });
                if (track) track.stop();

              case 57:
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: false
                });

              case 58:
              case "end":
                return _context7.stop();
            }
          }
        }, _callee7, this, [[12, 52]]);
      }));

      function enableWebcam() {
        return _enableWebcam.apply(this, arguments);
      }

      return enableWebcam;
    }()
  }, {
    key: "disableWebcam",
    value: function () {
      var _disableWebcam = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee8() {
        return regenerator.wrap(function _callee8$(_context8) {
          while (1) {
            switch (_context8.prev = _context8.next) {
              case 0:
                console.debug('disableWebcam()');

                if (this._webcamProducer) {
                  _context8.next = 3;
                  break;
                }

                return _context8.abrupt("return");

              case 3:
                this._webcamProducer.close();

                this.store.commit('zeyeClient/producers/removeProducer', {
                  producerId: this._webcamProducer.id
                });
                _context8.prev = 5;
                _context8.next = 8;
                return this._protoo.request('closeProducer', {
                  producerId: this._webcamProducer.id
                });

              case 8:
                _context8.next = 13;
                break;

              case 10:
                _context8.prev = 10;
                _context8.t0 = _context8["catch"](5);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error closing server-side webcam Producer: ".concat(_context8.t0)
                });

              case 13:
                this._webcamProducer = null;

              case 14:
              case "end":
                return _context8.stop();
            }
          }
        }, _callee8, this, [[5, 10]]);
      }));

      function disableWebcam() {
        return _disableWebcam.apply(this, arguments);
      }

      return disableWebcam;
    }()
  }, {
    key: "changeWebcam",
    value: function () {
      var _changeWebcam = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee9() {
        var array, len, deviceId, idx, stream, track;
        return regenerator.wrap(function _callee9$(_context9) {
          while (1) {
            switch (_context9.prev = _context9.next) {
              case 0:
                console.debug('changeWebcam()');
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: true
                });
                _context9.prev = 2;
                _context9.next = 5;
                return this._updateWebcams();

              case 5:
                array = Array.from(this._webcams.keys());
                len = array.length;
                deviceId = this._webcam.device ? this._webcam.device.deviceId : undefined;
                idx = array.indexOf(deviceId);
                if (idx < len - 1) idx++;else idx = 0;
                this._webcam.device = this._webcams.get(array[idx]);
                console.debug('changeWebcam() | new selected webcam [device:%o]', this._webcam.device); // Reset video resolution to HD.

                this._webcam.resolution = 'hd';

                if (this._webcam.device) {
                  _context9.next = 15;
                  break;
                }

                throw new Error('no webcam devices');

              case 15:
                // Closing the current video track before asking for a new one (mobiles do not like
                // having both front/back cameras open at the same time).
                this._webcamProducer.track.stop();

                console.debug('changeWebcam() | calling getUserMedia()');
                _context9.next = 19;
                return navigator.mediaDevices.getUserMedia({
                  video: _objectSpread2({
                    deviceId: {
                      exact: this._webcam.device.deviceId
                    }
                  }, VIDEO_CONSTRAINS[this._webcam.resolution])
                });

              case 19:
                stream = _context9.sent;
                track = stream.getVideoTracks()[0];
                _context9.next = 23;
                return this._webcamProducer.replaceTrack({
                  track: track
                });

              case 23:
                this.store.commit('zeyeClient/producers/setProducerTrack', {
                  producerId: this._webcamProducer.id,
                  track: track
                });
                _context9.next = 30;
                break;

              case 26:
                _context9.prev = 26;
                _context9.t0 = _context9["catch"](2);
                console.error('changeWebcam() | failed: %o', _context9.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Could not change webcam: ".concat(_context9.t0)
                });

              case 30:
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: false
                });
                this.$bus.$emit('update-my-media');

              case 32:
              case "end":
                return _context9.stop();
            }
          }
        }, _callee9, this, [[2, 26]]);
      }));

      function changeWebcam() {
        return _changeWebcam.apply(this, arguments);
      }

      return changeWebcam;
    }()
  }, {
    key: "changeWebcamResolution",
    value: function () {
      var _changeWebcamResolution = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee10() {
        var stream, track;
        return regenerator.wrap(function _callee10$(_context10) {
          while (1) {
            switch (_context10.prev = _context10.next) {
              case 0:
                console.debug('changeWebcamResolution()');
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: true
                });
                _context10.prev = 2;
                _context10.t0 = this._webcam.resolution;
                _context10.next = _context10.t0 === 'qvga' ? 6 : _context10.t0 === 'vga' ? 8 : _context10.t0 === 'hd' ? 10 : 12;
                break;

              case 6:
                this._webcam.resolution = 'vga';
                return _context10.abrupt("break", 13);

              case 8:
                this._webcam.resolution = 'hd';
                return _context10.abrupt("break", 13);

              case 10:
                this._webcam.resolution = 'qvga';
                return _context10.abrupt("break", 13);

              case 12:
                this._webcam.resolution = 'hd';

              case 13:
                console.debug('changeWebcamResolution() | calling getUserMedia()');
                _context10.next = 16;
                return navigator.mediaDevices.getUserMedia({
                  video: _objectSpread2({
                    deviceId: {
                      exact: this._webcam.device.deviceId
                    }
                  }, VIDEO_CONSTRAINS[this._webcam.resolution])
                });

              case 16:
                stream = _context10.sent;
                track = stream.getVideoTracks()[0];
                _context10.next = 20;
                return this._webcamProducer.replaceTrack({
                  track: track
                });

              case 20:
                this.store.commit('zeyeClient/producers/setProducerTrack', {
                  producerId: this._webcamProducer.id,
                  track: track
                });
                _context10.next = 27;
                break;

              case 23:
                _context10.prev = 23;
                _context10.t1 = _context10["catch"](2);
                console.error('changeWebcamResolution() | failed: %o', _context10.t1);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Could not change webcam resolution: ".concat(_context10.t1)
                });

              case 27:
                this.store.commit('zeyeClient/me/setWebcamInProgress', {
                  flag: false
                });

              case 28:
              case "end":
                return _context10.stop();
            }
          }
        }, _callee10, this, [[2, 23]]);
      }));

      function changeWebcamResolution() {
        return _changeWebcamResolution.apply(this, arguments);
      }

      return changeWebcamResolution;
    }()
  }, {
    key: "enableShare",
    value: function () {
      var _enableShare = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee11() {
        var _this4 = this;

        var result, track, stream, encodings, codec, codecOptions, firstVideoCodec;
        return regenerator.wrap(function _callee11$(_context11) {
          while (1) {
            switch (_context11.prev = _context11.next) {
              case 0:
                console.debug('enableShare()');
                result = true;

                if (!this._shareProducer) {
                  _context11.next = 6;
                  break;
                }

                return _context11.abrupt("return", false);

              case 6:
                if (!this._webcamProducer) {
                  _context11.next = 9;
                  break;
                }

                _context11.next = 9;
                return this.disableWebcam();

              case 9:
                if (this._mediasoupDevice.canProduce('video')) {
                  _context11.next = 12;
                  break;
                }

                console.error('enableShare() | cannot produce video');
                return _context11.abrupt("return", false);

              case 12:
                this.store.commit('zeyeClient/me/setShareInProgress', {
                  flag: true
                });
                _context11.prev = 13;
                console.debug('enableShare() | calling getUserMedia()');
                _context11.next = 17;
                return navigator.mediaDevices.getDisplayMedia({
                  audio: false,
                  video: {
                    displaySurface: 'monitor',
                    logicalSurface: true,
                    cursor: true,
                    width: {
                      max: 1920
                    },
                    height: {
                      max: 1080
                    },
                    frameRate: {
                      max: 30
                    }
                  }
                });

              case 17:
                stream = _context11.sent;

                if (stream) {
                  _context11.next = 21;
                  break;
                }

                this.store.commit('zeyeClient/me/setShareInProgress', {
                  flag: false
                });
                return _context11.abrupt("return", false);

              case 21:
                track = stream.getVideoTracks()[0];
                codecOptions = {
                  videoGoogleStartBitrate: 1000
                };

                if (!this._forceH264) {
                  _context11.next = 29;
                  break;
                }

                codec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                  return c.mimeType.toLowerCase() === 'video/h264';
                });

                if (codec) {
                  _context11.next = 27;
                  break;
                }

                throw new Error('desired H264 codec+configuration is not supported');

              case 27:
                _context11.next = 33;
                break;

              case 29:
                if (!this._forceVP9) {
                  _context11.next = 33;
                  break;
                }

                codec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                  return c.mimeType.toLowerCase() === 'video/vp9';
                });

                if (codec) {
                  _context11.next = 33;
                  break;
                }

                throw new Error('desired VP9 codec+configuration is not supported');

              case 33:
                if (this._useSharingSimulcast) {
                  // If VP9 is the only available video codec then use SVC.
                  firstVideoCodec = this._mediasoupDevice.rtpCapabilities.codecs.find(function (c) {
                    return c.kind === 'video';
                  });

                  if (this._forceVP9 && codec || firstVideoCodec.mimeType.toLowerCase() === 'video/vp9') {
                    encodings = VIDEO_SVC_ENCODINGS;
                  } else {
                    encodings = VIDEO_SIMULCAST_ENCODINGS.map(function (encoding) {
                      return _objectSpread2(_objectSpread2({}, encoding), {}, {
                        dtx: true
                      });
                    });
                  }
                }

                _context11.next = 36;
                return this._sendTransport.produce({
                  track: track,
                  encodings: encodings,
                  codecOptions: codecOptions,
                  codec: codec,
                  appData: {
                    share: true
                  }
                });

              case 36:
                this._shareProducer = _context11.sent;
                this.store.commit('zeyeClient/producers/addProducer', {
                  producer: {
                    id: this._shareProducer.id,
                    type: 'share',
                    paused: this._shareProducer.paused,
                    track: this._shareProducer.track,
                    rtpParameters: this._shareProducer.rtpParameters,
                    codec: this._shareProducer.rtpParameters.codecs[0].mimeType.split('/')[1]
                  }
                });

                this._shareProducer.on('transportclose', function () {
                  _this4._shareProducer = null;
                });

                this._shareProducer.on('trackended', function () {
                  _this4.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'Share disconnected!'
                  });

                  _this4.disableShare().catch(function () {});
                });

                _context11.next = 48;
                break;

              case 42:
                _context11.prev = 42;
                _context11.t0 = _context11["catch"](13);
                console.error('enableShare() | failed:%o', _context11.t0);

                if (_context11.t0.name !== 'NotAllowedError') {
                  this.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: "Error sharing: ".concat(_context11.t0)
                  });
                }

                if (track) track.stop();
                result = false;

              case 48:
                this.store.commit('zeyeClient/me/setShareInProgress', {
                  flag: false
                });
                return _context11.abrupt("return", result);

              case 50:
              case "end":
                return _context11.stop();
            }
          }
        }, _callee11, this, [[13, 42]]);
      }));

      function enableShare() {
        return _enableShare.apply(this, arguments);
      }

      return enableShare;
    }()
  }, {
    key: "disableShare",
    value: function () {
      var _disableShare = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee12() {
        return regenerator.wrap(function _callee12$(_context12) {
          while (1) {
            switch (_context12.prev = _context12.next) {
              case 0:
                console.debug('disableShare()');

                if (this._shareProducer) {
                  _context12.next = 3;
                  break;
                }

                return _context12.abrupt("return");

              case 3:
                this._shareProducer.close();

                this.store.commit('zeyeClient/producers/removeProducer', {
                  producerId: this._shareProducer.id
                });
                _context12.prev = 5;
                _context12.next = 8;
                return this._protoo.request('closeProducer', {
                  producerId: this._shareProducer.id
                });

              case 8:
                _context12.next = 13;
                break;

              case 10:
                _context12.prev = 10;
                _context12.t0 = _context12["catch"](5);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error closing server-side share Producer: ".concat(_context12.t0)
                });

              case 13:
                this._shareProducer = null;

              case 14:
              case "end":
                return _context12.stop();
            }
          }
        }, _callee12, this, [[5, 10]]);
      }));

      function disableShare() {
        return _disableShare.apply(this, arguments);
      }

      return disableShare;
    }()
  }, {
    key: "enableAudioOnly",
    value: function enableAudioOnly() {
      console.debug('enableAudioOnly()');
      this.store.commit('zeyeClient/me/setAudioOnlyInProgress', {
        flag: true
      });
      this.disableWebcam();

      var _iterator = _createForOfIteratorHelper(this._consumers.values()),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var consumer = _step.value;
          if (consumer.kind !== 'video') continue;

          this._pauseConsumer(consumer);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      this.store.commit('zeyeClient/me/setAudioOnlyState', {
        enabled: true
      });
      this.store.commit('zeyeClient/me/setAudioOnlyInProgress', {
        flag: false
      });
    }
  }, {
    key: "disableAudioOnly",
    value: function disableAudioOnly() {
      console.debug('disableAudioOnly()');
      this.store.commit('zeyeClient/me/setAudioOnlyInProgress', {
        flag: true
      });

      if (!this._webcamProducer && this._produce && (getDevices() || {}).webcamEnabled) {
        this.enableWebcam();
      }

      var _iterator2 = _createForOfIteratorHelper(this._consumers.values()),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var consumer = _step2.value;
          if (consumer.kind !== 'video') continue;

          this._resumeConsumer(consumer);
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      this.store.commit('zeyeClient/me/setAudioOnlyState', {
        enabled: false
      });
      this.store.commit('zeyeClient/me/setAudioOnlyInProgress', {
        flag: false
      });
    }
  }, {
    key: "muteAudio",
    value: function muteAudio() {
      console.debug('muteAudio()');
      this.store.commit('zeyeClient/me/setAudioMutedState', {
        flag: true
      });
    }
  }, {
    key: "unmuteAudio",
    value: function unmuteAudio() {
      console.debug('unmuteAudio()');
      this.store.commit('zeyeClient/me/setAudioMutedState', {
        flag: false
      });
    }
  }, {
    key: "restartIce",
    value: function () {
      var _restartIce = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee13() {
        var iceParameters, _iceParameters;

        return regenerator.wrap(function _callee13$(_context13) {
          while (1) {
            switch (_context13.prev = _context13.next) {
              case 0:
                console.debug('restartIce()');
                this.store.commit('zeyeClient/me/setRestartIceInProgress', {
                  flag: true
                });
                _context13.prev = 2;

                if (!this._sendTransport) {
                  _context13.next = 9;
                  break;
                }

                _context13.next = 6;
                return this._protoo.request('restartIce', {
                  transportId: this._sendTransport.id
                });

              case 6:
                iceParameters = _context13.sent;
                _context13.next = 9;
                return this._sendTransport.restartIce({
                  iceParameters: iceParameters
                });

              case 9:
                if (!this._recvTransport) {
                  _context13.next = 15;
                  break;
                }

                _context13.next = 12;
                return this._protoo.request('restartIce', {
                  transportId: this._recvTransport.id
                });

              case 12:
                _iceParameters = _context13.sent;
                _context13.next = 15;
                return this._recvTransport.restartIce({
                  iceParameters: _iceParameters
                });

              case 15:
                this.store.dispatch('zeyeClient/notify', {
                  text: 'ICE restarted'
                });
                _context13.next = 22;
                break;

              case 18:
                _context13.prev = 18;
                _context13.t0 = _context13["catch"](2);
                console.error('restartIce() | failed:%o', _context13.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "ICE restart failed: ".concat(_context13.t0)
                });

              case 22:
                this.store.commit('zeyeClient/me/setRestartIceInProgress', {
                  flag: false
                });

              case 23:
              case "end":
                return _context13.stop();
            }
          }
        }, _callee13, this, [[2, 18]]);
      }));

      function restartIce() {
        return _restartIce.apply(this, arguments);
      }

      return restartIce;
    }()
  }, {
    key: "setMaxSendingSpatialLayer",
    value: function () {
      var _setMaxSendingSpatialLayer = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee14(spatialLayer) {
        return regenerator.wrap(function _callee14$(_context14) {
          while (1) {
            switch (_context14.prev = _context14.next) {
              case 0:
                console.debug('setMaxSendingSpatialLayer() [spatialLayer:%s]', spatialLayer);
                _context14.prev = 1;

                if (!this._webcamProducer) {
                  _context14.next = 7;
                  break;
                }

                _context14.next = 5;
                return this._webcamProducer.setMaxSpatialLayer(spatialLayer);

              case 5:
                _context14.next = 10;
                break;

              case 7:
                if (!this._shareProducer) {
                  _context14.next = 10;
                  break;
                }

                _context14.next = 10;
                return this._shareProducer.setMaxSpatialLayer(spatialLayer);

              case 10:
                _context14.next = 16;
                break;

              case 12:
                _context14.prev = 12;
                _context14.t0 = _context14["catch"](1);
                console.error('setMaxSendingSpatialLayer() | failed:%o', _context14.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error setting max sending video spatial layer: ".concat(_context14.t0)
                });

              case 16:
              case "end":
                return _context14.stop();
            }
          }
        }, _callee14, this, [[1, 12]]);
      }));

      function setMaxSendingSpatialLayer(_x6) {
        return _setMaxSendingSpatialLayer.apply(this, arguments);
      }

      return setMaxSendingSpatialLayer;
    }()
  }, {
    key: "setConsumerPreferredLayers",
    value: function () {
      var _setConsumerPreferredLayers = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee15(consumerId, spatialLayer, temporalLayer) {
        return regenerator.wrap(function _callee15$(_context15) {
          while (1) {
            switch (_context15.prev = _context15.next) {
              case 0:
                console.debug('setConsumerPreferredLayers() [consumerId:%s, spatialLayer:%s, temporalLayer:%s]', consumerId, spatialLayer, temporalLayer);
                _context15.prev = 1;
                _context15.next = 4;
                return this._protoo.request('setConsumerPreferredLayers', {
                  consumerId: consumerId,
                  spatialLayer: spatialLayer,
                  temporalLayer: temporalLayer
                });

              case 4:
                this.store.commit('zeyeClient/consumers/setConsumerPreferredLayers', {
                  consumerId: consumerId,
                  spatialLayer: spatialLayer,
                  temporalLayer: temporalLayer
                });
                _context15.next = 11;
                break;

              case 7:
                _context15.prev = 7;
                _context15.t0 = _context15["catch"](1);
                console.error('setConsumerPreferredLayers() | failed:%o', _context15.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error setting Consumer preferred layers: ".concat(_context15.t0)
                });

              case 11:
              case "end":
                return _context15.stop();
            }
          }
        }, _callee15, this, [[1, 7]]);
      }));

      function setConsumerPreferredLayers(_x7, _x8, _x9) {
        return _setConsumerPreferredLayers.apply(this, arguments);
      }

      return setConsumerPreferredLayers;
    }()
  }, {
    key: "setConsumerPriority",
    value: function () {
      var _setConsumerPriority = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee16(consumerId, priority) {
        return regenerator.wrap(function _callee16$(_context16) {
          while (1) {
            switch (_context16.prev = _context16.next) {
              case 0:
                console.debug('setConsumerPriority() [consumerId:%s, priority:%d]', consumerId, priority);
                _context16.prev = 1;
                _context16.next = 4;
                return this._protoo.request('setConsumerPriority', {
                  consumerId: consumerId,
                  priority: priority
                });

              case 4:
                this.store.commit('zeyeClient/consumers/setConsumerPriority', {
                  consumerId: consumerId,
                  priority: priority
                });
                _context16.next = 11;
                break;

              case 7:
                _context16.prev = 7;
                _context16.t0 = _context16["catch"](1);
                console.error('setConsumerPriority() | failed:%o', _context16.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error setting Consumer priority: ".concat(_context16.t0)
                });

              case 11:
              case "end":
                return _context16.stop();
            }
          }
        }, _callee16, this, [[1, 7]]);
      }));

      function setConsumerPriority(_x10, _x11) {
        return _setConsumerPriority.apply(this, arguments);
      }

      return setConsumerPriority;
    }()
  }, {
    key: "requestConsumerKeyFrame",
    value: function () {
      var _requestConsumerKeyFrame = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee17(consumerId) {
        return regenerator.wrap(function _callee17$(_context17) {
          while (1) {
            switch (_context17.prev = _context17.next) {
              case 0:
                console.debug('requestConsumerKeyFrame() [consumerId:%s]', consumerId);
                _context17.prev = 1;
                _context17.next = 4;
                return this._protoo.request('requestConsumerKeyFrame', {
                  consumerId: consumerId
                });

              case 4:
                this.store.dispatch('zeyeClient/notify', {
                  text: 'Keyframe requested for video consumer'
                });
                _context17.next = 11;
                break;

              case 7:
                _context17.prev = 7;
                _context17.t0 = _context17["catch"](1);
                console.error('requestConsumerKeyFrame() | failed:%o', _context17.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error requesting key frame for Consumer: ".concat(_context17.t0)
                });

              case 11:
              case "end":
                return _context17.stop();
            }
          }
        }, _callee17, this, [[1, 7]]);
      }));

      function requestConsumerKeyFrame(_x12) {
        return _requestConsumerKeyFrame.apply(this, arguments);
      }

      return requestConsumerKeyFrame;
    }()
  }, {
    key: "enableChatDataProducer",
    value: function () {
      var _enableChatDataProducer = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee18() {
        var _this5 = this;

        return regenerator.wrap(function _callee18$(_context18) {
          while (1) {
            switch (_context18.prev = _context18.next) {
              case 0:
                console.debug('enableChatDataProducer()');

                if (this._useDataChannel) {
                  _context18.next = 3;
                  break;
                }

                return _context18.abrupt("return");

              case 3:
                _context18.prev = 3;
                _context18.next = 6;
                return this._sendTransport.produceData({
                  ordered: false,
                  maxRetransmits: 1,
                  label: 'chat',
                  priority: 'medium',
                  appData: {
                    info: 'my-chat-DataProducer'
                  }
                });

              case 6:
                this._chatDataProducer = _context18.sent;
                this.store.commit('zeyeClient/dataProducers/addDataProducer', {
                  dataProducer: {
                    id: this._chatDataProducer.id,
                    sctpStreamParameters: this._chatDataProducer.sctpStreamParameters,
                    label: this._chatDataProducer.label,
                    protocol: this._chatDataProducer.protocol
                  }
                });

                this._chatDataProducer.on('transportclose', function () {
                  _this5._chatDataProducer = null;
                });

                this._chatDataProducer.on('open', function () {
                  console.debug('chat DataProducer "open" event');
                });

                this._chatDataProducer.on('close', function () {
                  console.error('chat DataProducer "close" event');
                  _this5._chatDataProducer = null;

                  _this5.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'Chat DataProducer closed'
                  });
                });

                this._chatDataProducer.on('error', function (error) {
                  console.error('chat DataProducer "error" event:%o', error);

                  _this5.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: "Chat DataProducer error: ".concat(error)
                  });
                });

                this._chatDataProducer.on('bufferedamountlow', function () {
                  console.debug('chat DataProducer "bufferedamountlow" event');
                });

                _context18.next = 20;
                break;

              case 15:
                _context18.prev = 15;
                _context18.t0 = _context18["catch"](3);
                console.error('enableChatDataProducer() | failed:%o', _context18.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error enabling chat DataProducer: ".concat(_context18.t0)
                });
                throw _context18.t0;

              case 20:
              case "end":
                return _context18.stop();
            }
          }
        }, _callee18, this, [[3, 15]]);
      }));

      function enableChatDataProducer() {
        return _enableChatDataProducer.apply(this, arguments);
      }

      return enableChatDataProducer;
    }()
  }, {
    key: "enableBotDataProducer",
    value: function () {
      var _enableBotDataProducer = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee19() {
        var _this6 = this;

        return regenerator.wrap(function _callee19$(_context19) {
          while (1) {
            switch (_context19.prev = _context19.next) {
              case 0:
                console.debug('enableBotDataProducer()');

                if (this._useDataChannel) {
                  _context19.next = 3;
                  break;
                }

                return _context19.abrupt("return");

              case 3:
                _context19.prev = 3;
                _context19.next = 6;
                return this._sendTransport.produceData({
                  ordered: false,
                  maxPacketLifeTime: 2000,
                  label: 'bot',
                  priority: 'medium',
                  appData: {
                    info: 'my-bot-DataProducer'
                  }
                });

              case 6:
                this._botDataProducer = _context19.sent;
                this.store.commit('zeyeClient/dataProducers/addDataProducer', {
                  dataProducer: {
                    id: this._botDataProducer.id,
                    sctpStreamParameters: this._botDataProducer.sctpStreamParameters,
                    label: this._botDataProducer.label,
                    protocol: this._botDataProducer.protocol
                  }
                });

                this._botDataProducer.on('transportclose', function () {
                  _this6._botDataProducer = null;
                });

                this._botDataProducer.on('open', function () {
                  console.debug('bot DataProducer "open" event');
                });

                this._botDataProducer.on('close', function () {
                  console.error('bot DataProducer "close" event');
                  _this6._botDataProducer = null;

                  _this6.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: 'Bot DataProducer closed'
                  });
                });

                this._botDataProducer.on('error', function (error) {
                  console.error('bot DataProducer "error" event:%o', error);

                  _this6.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: "Bot DataProducer error: ".concat(error)
                  });
                });

                this._botDataProducer.on('bufferedamountlow', function () {
                  console.debug('bot DataProducer "bufferedamountlow" event');
                });

                _context19.next = 20;
                break;

              case 15:
                _context19.prev = 15;
                _context19.t0 = _context19["catch"](3);
                console.error('enableBotDataProducer() | failed:%o', _context19.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error enabling bot DataProducer: ".concat(_context19.t0)
                });
                throw _context19.t0;

              case 20:
              case "end":
                return _context19.stop();
            }
          }
        }, _callee19, this, [[3, 15]]);
      }));

      function enableBotDataProducer() {
        return _enableBotDataProducer.apply(this, arguments);
      }

      return enableBotDataProducer;
    }()
  }, {
    key: "sendChatMessage",
    value: function sendChatMessage(text) {
      console.debug('sendChatMessage() [text:"%s]', text);

      this._protoo.request('chatMessage', {
        id: randomString(10),
        timestamp: new Date().getTime(),
        author: this.store.state.zeyeClient.me.displayName,
        text: text
      });
    }
  }, {
    key: "changeDisplayName",
    value: function () {
      var _changeDisplayName = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee20(displayName) {
        return regenerator.wrap(function _callee20$(_context20) {
          while (1) {
            switch (_context20.prev = _context20.next) {
              case 0:
                console.debug('changeDisplayName() [displayName:"%s"]', displayName); // Store in cookie.

                setUser({
                  displayName: displayName
                });
                _context20.prev = 2;
                _context20.next = 5;
                return this._protoo.request('changeDisplayName', {
                  displayName: displayName
                });

              case 5:
                this._displayName = displayName;
                this.store.commit('zeyeClient/me/setDisplayName', {
                  displayName: displayName
                });
                this.store.dispatch('zeyeClient/notify', {
                  text: 'Display name changed'
                });
                _context20.next = 15;
                break;

              case 10:
                _context20.prev = 10;
                _context20.t0 = _context20["catch"](2);
                console.error('changeDisplayName() | failed: %o', _context20.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Could not change display name: ".concat(_context20.t0)
                }); // We need to refresh the component for it to render the previous
                // displayName again.

                this.store.commit('zeyeClient/me/setDisplayName', {
                  displayName: false
                });

              case 15:
              case "end":
                return _context20.stop();
            }
          }
        }, _callee20, this, [[2, 10]]);
      }));

      function changeDisplayName(_x13) {
        return _changeDisplayName.apply(this, arguments);
      }

      return changeDisplayName;
    }()
  }, {
    key: "getSendTransportRemoteStats",
    value: function getSendTransportRemoteStats() {
      console.debug('getSendTransportRemoteStats()');
      if (!this._sendTransport) return;
      return this._protoo.request('getTransportStats', {
        transportId: this._sendTransport.id
      });
    }
  }, {
    key: "getRecvTransportRemoteStats",
    value: function getRecvTransportRemoteStats() {
      console.debug('getRecvTransportRemoteStats()');
      if (!this._recvTransport) return;
      return this._protoo.request('getTransportStats', {
        transportId: this._recvTransport.id
      });
    }
  }, {
    key: "getAudioRemoteStats",
    value: function getAudioRemoteStats() {
      console.debug('getAudioRemoteStats()');
      if (!this._micProducer) return;
      return this._protoo.request('getProducerStats', {
        producerId: this._micProducer.id
      });
    }
  }, {
    key: "getVideoRemoteStats",
    value: function getVideoRemoteStats() {
      console.debug('getVideoRemoteStats()');
      var producer = this._webcamProducer || this._shareProducer;
      if (!producer) return;
      return this._protoo.request('getProducerStats', {
        producerId: producer.id
      });
    }
  }, {
    key: "getConsumerRemoteStats",
    value: function getConsumerRemoteStats(consumerId) {
      console.debug('getConsumerRemoteStats()');

      var consumer = this._consumers.get(consumerId);

      if (!consumer) return;
      return this._protoo.request('getConsumerStats', {
        consumerId: consumerId
      });
    }
  }, {
    key: "getChatDataProducerRemoteStats",
    value: function getChatDataProducerRemoteStats() {
      console.debug('getChatDataProducerRemoteStats()');
      var dataProducer = this._chatDataProducer;
      if (!dataProducer) return;
      return this._protoo.request('getDataProducerStats', {
        dataProducerId: dataProducer.id
      });
    }
  }, {
    key: "getBotDataProducerRemoteStats",
    value: function getBotDataProducerRemoteStats() {
      console.debug('getBotDataProducerRemoteStats()');
      var dataProducer = this._botDataProducer;
      if (!dataProducer) return;
      return this._protoo.request('getDataProducerStats', {
        dataProducerId: dataProducer.id
      });
    }
  }, {
    key: "getDataConsumerRemoteStats",
    value: function getDataConsumerRemoteStats(dataConsumerId) {
      console.debug('getDataConsumerRemoteStats()');

      var dataConsumer = this._dataConsumers.get(dataConsumerId);

      if (!dataConsumer) return;
      return this._protoo.request('getDataConsumerStats', {
        dataConsumerId: dataConsumerId
      });
    }
  }, {
    key: "getSendTransportLocalStats",
    value: function getSendTransportLocalStats() {
      console.debug('getSendTransportLocalStats()');
      if (!this._sendTransport) return;
      return this._sendTransport.getStats();
    }
  }, {
    key: "getRecvTransportLocalStats",
    value: function getRecvTransportLocalStats() {
      console.debug('getRecvTransportLocalStats()');
      if (!this._recvTransport) return;
      return this._recvTransport.getStats();
    }
  }, {
    key: "getAudioLocalStats",
    value: function getAudioLocalStats() {
      console.debug('getAudioLocalStats()');
      if (!this._micProducer) return;
      return this._micProducer.getStats();
    }
  }, {
    key: "getVideoLocalStats",
    value: function getVideoLocalStats() {
      console.debug('getVideoLocalStats()');
      var producer = this._webcamProducer || this._shareProducer;
      if (!producer) return;
      return producer.getStats();
    }
  }, {
    key: "getConsumerLocalStats",
    value: function getConsumerLocalStats(consumerId) {
      var consumer = this._consumers.get(consumerId);

      if (!consumer) return;
      return consumer.getStats();
    }
  }, {
    key: "applyNetworkThrottle",
    value: function () {
      var _applyNetworkThrottle = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee21(_ref4) {
        var uplink, downlink, rtt, secret;
        return regenerator.wrap(function _callee21$(_context21) {
          while (1) {
            switch (_context21.prev = _context21.next) {
              case 0:
                uplink = _ref4.uplink, downlink = _ref4.downlink, rtt = _ref4.rtt, secret = _ref4.secret;
                console.debug('applyNetworkThrottle() [uplink:%s, downlink:%s, rtt:%s]', uplink, downlink, rtt);
                _context21.prev = 2;
                _context21.next = 5;
                return this._protoo.request('applyNetworkThrottle', {
                  uplink: uplink,
                  downlink: downlink,
                  rtt: rtt,
                  secret: secret
                });

              case 5:
                _context21.next = 11;
                break;

              case 7:
                _context21.prev = 7;
                _context21.t0 = _context21["catch"](2);
                console.error('applyNetworkThrottle() | failed:%o', _context21.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error applying network throttle: ".concat(_context21.t0)
                });

              case 11:
              case "end":
                return _context21.stop();
            }
          }
        }, _callee21, this, [[2, 7]]);
      }));

      function applyNetworkThrottle(_x14) {
        return _applyNetworkThrottle.apply(this, arguments);
      }

      return applyNetworkThrottle;
    }()
  }, {
    key: "resetNetworkThrottle",
    value: function () {
      var _resetNetworkThrottle = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee22(_ref5) {
        var _ref5$silent, silent, secret;

        return regenerator.wrap(function _callee22$(_context22) {
          while (1) {
            switch (_context22.prev = _context22.next) {
              case 0:
                _ref5$silent = _ref5.silent, silent = _ref5$silent === void 0 ? false : _ref5$silent, secret = _ref5.secret;
                console.debug('resetNetworkThrottle()');
                _context22.prev = 2;
                _context22.next = 5;
                return this._protoo.request('resetNetworkThrottle', {
                  secret: secret
                });

              case 5:
                _context22.next = 10;
                break;

              case 7:
                _context22.prev = 7;
                _context22.t0 = _context22["catch"](2);

                if (!silent) {
                  console.error('resetNetworkThrottle() | failed:%o', _context22.t0);
                  this.store.dispatch('zeyeClient/notify', {
                    type: 'error',
                    text: "Error resetting network throttle: ".concat(_context22.t0)
                  });
                }

              case 10:
              case "end":
                return _context22.stop();
            }
          }
        }, _callee22, this, [[2, 7]]);
      }));

      function resetNetworkThrottle(_x15) {
        return _resetNetworkThrottle.apply(this, arguments);
      }

      return resetNetworkThrottle;
    }()
  }, {
    key: "_joinRoom",
    value: function () {
      var _joinRoom2 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee25() {
        var _this7 = this;

        var routerRtpCapabilities, stream, audioTrack, transportInfo, id, iceParameters, iceCandidates, dtlsParameters, sctpParameters, _transportInfo, _id4, _iceParameters2, _iceCandidates, _dtlsParameters, _sctpParameters, _yield$this$_protoo$r, peers, _iterator3, _step3, peer, devicesCookie, me;

        return regenerator.wrap(function _callee25$(_context25) {
          while (1) {
            switch (_context25.prev = _context25.next) {
              case 0:
                console.debug('_joinRoom()');
                _context25.prev = 1;
                this._mediasoupDevice = new Device({
                  handlerName: this._handlerName
                });
                _context25.next = 5;
                return this._protoo.request('getRouterRtpCapabilities');

              case 5:
                routerRtpCapabilities = _context25.sent;
                _context25.next = 8;
                return this._mediasoupDevice.load({
                  routerRtpCapabilities: routerRtpCapabilities
                });

              case 8:
                _context25.next = 10;
                return navigator.mediaDevices.getUserMedia({
                  audio: true
                });

              case 10:
                stream = _context25.sent;
                audioTrack = stream.getAudioTracks()[0];
                audioTrack.enabled = false;
                setTimeout(function () {
                  return audioTrack.stop();
                }, 120000);

                if (!this._produce) {
                  _context25.next = 23;
                  break;
                }

                _context25.next = 17;
                return this._protoo.request('createWebRtcTransport', {
                  forceTcp: this._forceTcp,
                  producing: true,
                  consuming: false,
                  sctpCapabilities: this._useDataChannel ? this._mediasoupDevice.sctpCapabilities : undefined
                });

              case 17:
                transportInfo = _context25.sent;
                id = transportInfo.id, iceParameters = transportInfo.iceParameters, iceCandidates = transportInfo.iceCandidates, dtlsParameters = transportInfo.dtlsParameters, sctpParameters = transportInfo.sctpParameters;
                this._sendTransport = this._mediasoupDevice.createSendTransport({
                  id: id,
                  iceParameters: iceParameters,
                  iceCandidates: iceCandidates,
                  dtlsParameters: dtlsParameters,
                  sctpParameters: sctpParameters,
                  iceServers: [],
                  proprietaryConstraints: PC_PROPRIETARY_CONSTRAINTS
                });

                this._sendTransport.on('connect', function (_ref6, callback, errback // eslint-disable-line no-shadow
                ) {
                  var dtlsParameters = _ref6.dtlsParameters;

                  _this7._protoo.request('connectWebRtcTransport', {
                    transportId: _this7._sendTransport.id,
                    dtlsParameters: dtlsParameters
                  }).then(callback).catch(errback);
                });

                this._sendTransport.on('produce', /*#__PURE__*/function () {
                  var _ref8 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee23(_ref7, callbackfunc, errback) {
                    var kind, rtpParameters, appData, _yield$_this7$_protoo, _id2;

                    return regenerator.wrap(function _callee23$(_context23) {
                      while (1) {
                        switch (_context23.prev = _context23.next) {
                          case 0:
                            kind = _ref7.kind, rtpParameters = _ref7.rtpParameters, appData = _ref7.appData;
                            _context23.prev = 1;
                            _context23.next = 4;
                            return _this7._protoo.request('produce', {
                              transportId: _this7._sendTransport.id,
                              kind: kind,
                              rtpParameters: rtpParameters,
                              appData: appData
                            });

                          case 4:
                            _yield$_this7$_protoo = _context23.sent;
                            _id2 = _yield$_this7$_protoo.id;
                            callbackfunc({
                              id: _id2
                            });
                            _context23.next = 12;
                            break;

                          case 9:
                            _context23.prev = 9;
                            _context23.t0 = _context23["catch"](1);
                            errback(_context23.t0);

                          case 12:
                          case "end":
                            return _context23.stop();
                        }
                      }
                    }, _callee23, null, [[1, 9]]);
                  }));

                  return function (_x16, _x17, _x18) {
                    return _ref8.apply(this, arguments);
                  };
                }());

                this._sendTransport.on('producedata', /*#__PURE__*/function () {
                  var _ref10 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee24(_ref9, callbackfunc, errback) {
                    var sctpStreamParameters, label, protocol, appData, _yield$_this7$_protoo2, _id3;

                    return regenerator.wrap(function _callee24$(_context24) {
                      while (1) {
                        switch (_context24.prev = _context24.next) {
                          case 0:
                            sctpStreamParameters = _ref9.sctpStreamParameters, label = _ref9.label, protocol = _ref9.protocol, appData = _ref9.appData;
                            console.debug('"producedata" event: [sctpStreamParameters:%o, appData:%o]', sctpStreamParameters, appData);
                            _context24.prev = 2;
                            _context24.next = 5;
                            return _this7._protoo.request('produceData', {
                              transportId: _this7._sendTransport.id,
                              sctpStreamParameters: sctpStreamParameters,
                              label: label,
                              protocol: protocol,
                              appData: appData
                            });

                          case 5:
                            _yield$_this7$_protoo2 = _context24.sent;
                            _id3 = _yield$_this7$_protoo2.id;
                            callbackfunc({
                              id: _id3
                            });
                            _context24.next = 13;
                            break;

                          case 10:
                            _context24.prev = 10;
                            _context24.t0 = _context24["catch"](2);
                            errback(_context24.t0);

                          case 13:
                          case "end":
                            return _context24.stop();
                        }
                      }
                    }, _callee24, null, [[2, 10]]);
                  }));

                  return function (_x19, _x20, _x21) {
                    return _ref10.apply(this, arguments);
                  };
                }());

              case 23:
                if (!this._consume) {
                  _context25.next = 30;
                  break;
                }

                _context25.next = 26;
                return this._protoo.request('createWebRtcTransport', {
                  forceTcp: this._forceTcp,
                  producing: false,
                  consuming: true,
                  sctpCapabilities: this._useDataChannel ? this._mediasoupDevice.sctpCapabilities : undefined
                });

              case 26:
                _transportInfo = _context25.sent;
                _id4 = _transportInfo.id, _iceParameters2 = _transportInfo.iceParameters, _iceCandidates = _transportInfo.iceCandidates, _dtlsParameters = _transportInfo.dtlsParameters, _sctpParameters = _transportInfo.sctpParameters;
                this._recvTransport = this._mediasoupDevice.createRecvTransport({
                  id: _id4,
                  iceParameters: _iceParameters2,
                  iceCandidates: _iceCandidates,
                  dtlsParameters: _dtlsParameters,
                  sctpParameters: _sctpParameters,
                  iceServers: []
                });

                this._recvTransport.on('connect', function (_ref11, callback, errback // eslint-disable-line no-shadow
                ) {
                  var dtlsParameters = _ref11.dtlsParameters;

                  _this7._protoo.request('connectWebRtcTransport', {
                    transportId: _this7._recvTransport.id,
                    dtlsParameters: dtlsParameters
                  }).then(callback).catch(errback);
                });

              case 30:
                _context25.next = 32;
                return this._protoo.request('join', {
                  displayName: this._displayName,
                  device: this._device,
                  rtpCapabilities: this._consume ? this._mediasoupDevice.rtpCapabilities : undefined,
                  sctpCapabilities: this._useDataChannel && this._consume ? this._mediasoupDevice.sctpCapabilities : undefined
                });

              case 32:
                _yield$this$_protoo$r = _context25.sent;
                peers = _yield$this$_protoo$r.peers;
                this.store.commit('zeyeClient/room/setRoomState', {
                  state: 'connected'
                }); // Clean all the existing notifcations.

                this.store.commit('zeyeClient/notifications/removeAllNotifications');
                this.store.dispatch('zeyeClient/notify', {
                  text: 'You are in the room!',
                  timeout: 3000
                });
                _iterator3 = _createForOfIteratorHelper(peers);

                try {
                  for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
                    peer = _step3.value;
                    this.store.commit('zeyeClient/peers/addPeer', {
                      peer: _objectSpread2(_objectSpread2({}, peer), {}, {
                        consumers: [],
                        dataConsumers: []
                      })
                    });
                  } // Enable mic/webcam.

                } catch (err) {
                  _iterator3.e(err);
                } finally {
                  _iterator3.f();
                }

                if (this._produce) {
                  // Set our media capabilities.
                  this.store.commit('zeyeClient/me/setMediaCapabilities', {
                    canSendMic: this._mediasoupDevice.canProduce('audio'),
                    canSendWebcam: this._mediasoupDevice.canProduce('video')
                  });
                  this.enableMic();
                  devicesCookie = getDevices();
                  if (!devicesCookie || devicesCookie.webcamEnabled || this._externalVideo) this.enableWebcam();

                  this._sendTransport.on('connectionstatechange', function (connectionState) {
                  });
                } // NOTE: For testing.


                if (window.SHOW_INFO) {
                  me = this.store.state.me;
                  this.store.commit('zeyeClient/room/setRoomStatsPeerId', {
                    peerId: me.id
                  });
                }

                _context25.next = 48;
                break;

              case 43:
                _context25.prev = 43;
                _context25.t0 = _context25["catch"](1);
                console.error('_joinRoom() failed:%o', _context25.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Could not join the room: ".concat(_context25.t0)
                });
                this.close();

              case 48:
              case "end":
                return _context25.stop();
            }
          }
        }, _callee25, this, [[1, 43]]);
      }));

      function _joinRoom() {
        return _joinRoom2.apply(this, arguments);
      }

      return _joinRoom;
    }()
  }, {
    key: "_updateWebcams",
    value: function () {
      var _updateWebcams2 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee26() {
        var devices, _iterator4, _step4, device, array, len, currentWebcamId;

        return regenerator.wrap(function _callee26$(_context26) {
          while (1) {
            switch (_context26.prev = _context26.next) {
              case 0:
                console.debug('_updateWebcams()'); // Reset the list.

                this._webcams = new Map();
                console.debug('_updateWebcams() | calling enumerateDevices()');
                _context26.next = 5;
                return navigator.mediaDevices.enumerateDevices();

              case 5:
                devices = _context26.sent;
                _iterator4 = _createForOfIteratorHelper(devices);

                try {
                  for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
                    device = _step4.value;

                    if (device.kind === 'audiooutput') {
                      this._outputDevices.push(device);
                    }

                    if (device.kind === 'videoinput') {
                      this._webcams.set(device.deviceId, device);
                    }
                  }
                } catch (err) {
                  _iterator4.e(err);
                } finally {
                  _iterator4.f();
                }

                this.store.commit('zeyeClient/me/setCurrentAudioOutputDevice', {
                  currentAudioOutputDevice: this._outputDevices[0]
                });
                array = Array.from(this._webcams.values());
                len = array.length;
                currentWebcamId = this._webcam.device ? this._webcam.device.deviceId : undefined;
                console.debug('_updateWebcams() [webcams:%o]', array);
                if (len === 0) this._webcam.device = null;else if (!this._webcams.has(currentWebcamId)) this._webcam.device = array[0];
                this.store.commit('zeyeClient/me/setCanChangeWebcam', {
                  flag: this._webcams.size > 1
                });

              case 15:
              case "end":
                return _context26.stop();
            }
          }
        }, _callee26, this);
      }));

      function _updateWebcams() {
        return _updateWebcams2.apply(this, arguments);
      }

      return _updateWebcams;
    }()
  }, {
    key: "_getWebcamType",
    value: function _getWebcamType(device) {
      if (/(back|rear)/i.test(device.label)) {
        console.debug('_getWebcamType() | it seems to be a back camera');
        return 'back';
      } else {
        console.debug('_getWebcamType() | it seems to be a front camera');
        return 'front';
      }
    }
  }, {
    key: "_pauseConsumer",
    value: function () {
      var _pauseConsumer2 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee27(consumer) {
        return regenerator.wrap(function _callee27$(_context27) {
          while (1) {
            switch (_context27.prev = _context27.next) {
              case 0:
                if (!consumer.paused) {
                  _context27.next = 2;
                  break;
                }

                return _context27.abrupt("return");

              case 2:
                _context27.prev = 2;
                _context27.next = 5;
                return this._protoo.request('pauseConsumer', {
                  consumerId: consumer.id
                });

              case 5:
                consumer.pause();
                this.store.commit('zeyeClient/consumers/setConsumerPaused', {
                  consumerId: consumer.id,
                  originator: 'local'
                });
                _context27.next = 13;
                break;

              case 9:
                _context27.prev = 9;
                _context27.t0 = _context27["catch"](2);
                console.error('_pauseConsumer() | failed:%o', _context27.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error pausing Consumer: ".concat(_context27.t0)
                });

              case 13:
              case "end":
                return _context27.stop();
            }
          }
        }, _callee27, this, [[2, 9]]);
      }));

      function _pauseConsumer(_x22) {
        return _pauseConsumer2.apply(this, arguments);
      }

      return _pauseConsumer;
    }()
  }, {
    key: "_resumeConsumer",
    value: function () {
      var _resumeConsumer2 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee28(consumer) {
        return regenerator.wrap(function _callee28$(_context28) {
          while (1) {
            switch (_context28.prev = _context28.next) {
              case 0:
                if (consumer.paused) {
                  _context28.next = 2;
                  break;
                }

                return _context28.abrupt("return");

              case 2:
                _context28.prev = 2;
                _context28.next = 5;
                return this._protoo.request('resumeConsumer', {
                  consumerId: consumer.id
                });

              case 5:
                consumer.resume();
                this.store.commit('zeyeClient/consumers/setConsumerResumed', {
                  consumerId: consumer.id,
                  originator: 'local'
                });
                _context28.next = 13;
                break;

              case 9:
                _context28.prev = 9;
                _context28.t0 = _context28["catch"](2);
                console.error('_resumeConsumer() | failed:%o', _context28.t0);
                this.store.dispatch('zeyeClient/notify', {
                  type: 'error',
                  text: "Error resuming Consumer: ".concat(_context28.t0)
                });

              case 13:
              case "end":
                return _context28.stop();
            }
          }
        }, _callee28, this, [[2, 9]]);
      }));

      function _resumeConsumer(_x23) {
        return _resumeConsumer2.apply(this, arguments);
      }

      return _resumeConsumer;
    }()
  }, {
    key: "_getExternalVideoStream",
    value: function () {
      var _getExternalVideoStream2 = _asyncToGenerator( /*#__PURE__*/regenerator.mark(function _callee29() {
        var _this8 = this;

        return regenerator.wrap(function _callee29$(_context29) {
          while (1) {
            switch (_context29.prev = _context29.next) {
              case 0:
                if (!this._externalVideoStream) {
                  _context29.next = 2;
                  break;
                }

                return _context29.abrupt("return", this._externalVideoStream);

              case 2:
                if (!(this._externalVideo.readyState < 3)) {
                  _context29.next = 5;
                  break;
                }

                _context29.next = 5;
                return new Promise(function (resolve) {
                  return _this8._externalVideo.addEventListener('canplay', resolve);
                });

              case 5:
                if (!this._externalVideo.captureStream) {
                  _context29.next = 9;
                  break;
                }

                this._externalVideoStream = this._externalVideo.captureStream();
                _context29.next = 14;
                break;

              case 9:
                if (!this._externalVideo.mozCaptureStream) {
                  _context29.next = 13;
                  break;
                }

                this._externalVideoStream = this._externalVideo.mozCaptureStream();
                _context29.next = 14;
                break;

              case 13:
                throw new Error('video.captureStream() not supported');

              case 14:
                return _context29.abrupt("return", this._externalVideoStream);

              case 15:
              case "end":
                return _context29.stop();
            }
          }
        }, _callee29, this);
      }));

      function _getExternalVideoStream() {
        return _getExternalVideoStream2.apply(this, arguments);
      }

      return _getExternalVideoStream;
    }()
  }]);

  return ZeyeClient;
}();

//
var script = {
  props: {
    peerId: {
      type: String,
      required: true
    },
    showVolumeBar: {
      type: Boolean,
      default: false
    },
    volumeBarColor: {
      type: String,
      default: 'greenyellow'
    }
  },
  data: function data() {
    return {
      hark: null,
      audioVolume: 0 // Integer from 0 to 10

    };
  },
  computed: {
    isLocalMedia: function isLocalMedia() {
      return this.peerId === 'me';
    }
  },
  mounted: function mounted() {
    var _this = this;

    this.waitForMediaAvailability();

    if (this.isLocalMedia) {
      this.$zeyeClient.$bus.$on('update-my-media', function () {
        _this.runVideo();

        _this.runAudio();
      });
    }

    this.$zeyeClient.$bus.$on('set-output-device-id', function (deviceId) {
      _this.$refs.audioElem.setSinkId(deviceId);
    });
  },
  beforeDestroy: function beforeDestroy() {
    this.$zeyeClient.$bus.$off('update-my-media');
    this.$zeyeClient.$bus.$off('set-output-device-id');
  },
  methods: {
    runAudio: function runAudio() {
      // for nonMe peers there should be a Consumer getter
      var audioTrack;

      if (this.isLocalMedia) {
        audioTrack = this.$zeyeClient.getAudioProducer().track;
      } else {
        audioTrack = this.$zeyeClient.getAudioConsumer(this.peerId).track;
      }

      if (audioTrack) {
        var audioElem = this.$refs.audioElem;
        audioElem.muted = this.isLocalMedia;
        var audioStream = new MediaStream();
        audioStream.addTrack(audioTrack);
        audioElem.srcObject = audioStream;
        audioElem.play().catch(function (error) {
          return console.warn('audioElem.play() failed:%o', error);
        });

        this._runHark(audioStream);
      }
    },
    runVideo: function runVideo() {
      var videoTrack;

      if (this.isLocalMedia) {
        videoTrack = this.$zeyeClient.getVideoProducer().track;
      } else {
        videoTrack = this.$zeyeClient.getVideoConsumer(this.peerId).track;
      }

      if (videoTrack) {
        var _this$$refs = this.$refs,
            audioElem = _this$$refs.audioElem,
            videoElem = _this$$refs.videoElem;
        videoElem.muted = true;
        var videoStream = new MediaStream();
        videoStream.addTrack(videoTrack);
        videoElem.srcObject = videoStream;

        videoElem.onplay = function () {
          audioElem.play().catch(function (error) {
            return console.warn('audioElem.play() failed:%o', error);
          });
        };

        videoElem.play();
      }
    },
    _runHark: function _runHark(stream) {
      var _this2 = this;

      if (!stream.getAudioTracks()[0]) throw new Error('_runHark() | given stream has no audio track');
      this.hark = hark(stream, {
        play: false
      }); // eslint-disable-next-line no-unused-vars

      this.hark.on('volume_change', function (dBs, threshold) {
        // The exact formula to convert from dBs (-100..0) to linear (0..1) is:
        //   Math.pow(10, dBs / 20)
        // However it does not produce a visually useful output, so let exagerate
        // it a bit. Also, let convert it from 0..1 to 0..10 and avoid value 1 to
        // minimize component renderings.
        var audioVolume = Math.round(Math.pow(10, dBs / 85) * 10);
        if (audioVolume === 1) audioVolume = 0;

        if (audioVolume !== _this2.audioVolume) {
          _this2.audioVolume = audioVolume;
        }
      });
    },
    waitForMediaAvailability: function waitForMediaAvailability() {
      if (this.isLocalMedia && this.$zeyeClient.getAudioProducer() && this.$zeyeClient.getVideoProducer() || !this.isLocalMedia && this.$zeyeClient.getPeer(this.peerId) && this.$zeyeClient.getPeer(this.peerId).consumers && this.$zeyeClient.getAudioConsumer(this.peerId) && this.$zeyeClient.getVideoConsumer(this.peerId)) {
        this.runAudio();
        this.runVideo();
      } else {
        console.debug('Waiting for channels availability...');
        setTimeout(this.waitForMediaAvailability, 100);
      }
    }
  }
};

function normalizeComponent(template, style, script, scopeId, isFunctionalTemplate, moduleIdentifier
/* server only */
, shadowMode, createInjector, createInjectorSSR, createInjectorShadow) {
  if (typeof shadowMode !== 'boolean') {
    createInjectorSSR = createInjector;
    createInjector = shadowMode;
    shadowMode = false;
  } // Vue.extend constructor export interop.


  var options = typeof script === 'function' ? script.options : script; // render functions

  if (template && template.render) {
    options.render = template.render;
    options.staticRenderFns = template.staticRenderFns;
    options._compiled = true; // functional template

    if (isFunctionalTemplate) {
      options.functional = true;
    }
  } // scopedId


  if (scopeId) {
    options._scopeId = scopeId;
  }

  var hook;

  if (moduleIdentifier) {
    // server build
    hook = function hook(context) {
      // 2.3 injection
      context = context || // cached call
      this.$vnode && this.$vnode.ssrContext || // stateful
      this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext; // functional
      // 2.2 with runInNewContext: true

      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {
        context = __VUE_SSR_CONTEXT__;
      } // inject component styles


      if (style) {
        style.call(this, createInjectorSSR(context));
      } // register component module identifier for async chunk inference


      if (context && context._registeredComponents) {
        context._registeredComponents.add(moduleIdentifier);
      }
    }; // used by ssr in case component is cached and beforeCreate
    // never gets called


    options._ssrRegister = hook;
  } else if (style) {
    hook = shadowMode ? function () {
      style.call(this, createInjectorShadow(this.$root.$options.shadowRoot));
    } : function (context) {
      style.call(this, createInjector(context));
    };
  }

  if (hook) {
    if (options.functional) {
      // register for functional component in vue file
      var originalRender = options.render;

      options.render = function renderWithStyleInjection(h, context) {
        hook.call(context);
        return originalRender(h, context);
      };
    } else {
      // inject component registration as beforeCreate hook
      var existing = options.beforeCreate;
      options.beforeCreate = existing ? [].concat(existing, hook) : [hook];
    }
  }

  return script;
}

var normalizeComponent_1 = normalizeComponent;

var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\\b/.test(navigator.userAgent.toLowerCase());

function createInjector(context) {
  return function (id, style) {
    return addStyle(id, style);
  };
}

var HEAD = document.head || document.getElementsByTagName('head')[0];
var styles = {};

function addStyle(id, css) {
  var group = isOldIE ? css.media || 'default' : id;
  var style = styles[group] || (styles[group] = {
    ids: new Set(),
    styles: []
  });

  if (!style.ids.has(id)) {
    style.ids.add(id);
    var code = css.source;

    if (css.map) {
      // https://developer.chrome.com/devtools/docs/javascript-debugging
      // this makes source maps inside style tags work properly in Chrome
      code += '\n/*# sourceURL=' + css.map.sources[0] + ' */'; // http://stackoverflow.com/a/26603875

      code += '\n/*# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(JSON.stringify(css.map)))) + ' */';
    }

    if (!style.element) {
      style.element = document.createElement('style');
      style.element.type = 'text/css';
      if (css.media) style.element.setAttribute('media', css.media);
      HEAD.appendChild(style.element);
    }

    if ('styleSheet' in style.element) {
      style.styles.push(code);
      style.element.styleSheet.cssText = style.styles.filter(Boolean).join('\n');
    } else {
      var index = style.ids.size - 1;
      var textNode = document.createTextNode(code);
      var nodes = style.element.childNodes;
      if (nodes[index]) style.element.removeChild(nodes[index]);
      if (nodes.length) style.element.insertBefore(textNode, nodes[index]);else style.element.appendChild(textNode);
    }
  }
}

var browser = createInjector;

/* script */
const __vue_script__ = script;

/* template */
var __vue_render__ = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('div',{staticClass:"zeye-peer-media",class:{ 'active-speaker': _vm.$zeyeClient.isSpeakerActive(_vm.peerId) }},[_c('video',{ref:"videoElem",staticStyle:{"width":"100%"},attrs:{"autoPlay":"","playsInline":"","muted":"","controls":false},domProps:{"muted":true}}),_vm._v(" "),_c('audio',{ref:"audioElem",staticStyle:{"width":"100%"},attrs:{"autoPlay":"","playsInline":"","muted":"","controls":false}}),_vm._v(" "),(_vm.showVolumeBar)?_c('div',{staticClass:"volume-container"},[_c('div',{staticClass:"bar",style:({
        height: _vm.audioVolume * 10 + '%',
        backgroundColor: _vm.volumeBarColor
      })})]):_vm._e()])};
var __vue_staticRenderFns__ = [];

  /* style */
  const __vue_inject_styles__ = function (inject) {
    if (!inject) return
    inject("data-v-6c0ca3c8_0", { source: ".volume-container{position:absolute;left:0;top:0;bottom:0;width:10px;display:flex;-webkit-box-orient:vertical;flex-direction:column;-webkit-box-pack:center;justify-content:center;-webkit-box-align:center;align-items:center;pointer-events:none}.volume-container .bar{width:6px;border-radius:6px;transition:.1s ease-in 0s}.zeye-peer-media{position:relative;flex:100 100 auto;display:flex}.zeye-peer-media.active-speaker{box-shadow:0 0 5px #adff2f}", map: undefined, media: undefined });

  };
  /* scoped */
  const __vue_scope_id__ = undefined;
  /* module identifier */
  const __vue_module_identifier__ = undefined;
  /* functional template */
  const __vue_is_functional_template__ = false;
  /* style inject SSR */
  

  
  var zeyePeerMedia = normalizeComponent_1(
    { render: __vue_render__, staticRenderFns: __vue_staticRenderFns__ },
    __vue_inject_styles__,
    __vue_script__,
    __vue_scope_id__,
    __vue_is_functional_template__,
    __vue_module_identifier__,
    browser,
    undefined
  );

var zeyeClient = {
  install: function install(Vue, store, preserveState) {
    preserveState = preserveState === undefined ? false : preserveState;
    store.registerModule(['zeyeClient', 'consumers'], module, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'dataConsumers'], module$1, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'dataProducers'], module$2, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'index'], module$3, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'me'], module$4, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'notifications'], module$5, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'peers'], module$6, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'producers'], module$7, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'room'], room, {
      preserveState: preserveState
    });
    store.registerModule(['zeyeClient', 'chat'], module$8, {
      preserveState: preserveState
    });
    /**
     * @type {ZeyeClient}
     */

    this.$zeyeClient = new ZeyeClient({
      store: store
    });
    Vue.prototype.$zeyeClient = this.$zeyeClient;
    Vue.$zeyeClient = this.$zeyeClient;
    Vue.component('zeye-peer-media', zeyePeerMedia);
    registerFunctions$6({
      app: this,
      store: store
    });
  }
};

if (typeof window !== 'undefined' && window.Vue) {
  window.Vue.use(zeyeClient);
}

export default zeyeClient;