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* @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport 'core-js/es7/reflect';\n","require('../modules/es7.reflect.define-metadata');\nrequire('../modules/es7.reflect.delete-metadata');\nrequire('../modules/es7.reflect.get-metadata');\nrequire('../modules/es7.reflect.get-metadata-keys');\nrequire('../modules/es7.reflect.get-own-metadata');\nrequire('../modules/es7.reflect.get-own-metadata-keys');\nrequire('../modules/es7.reflect.has-metadata');\nrequire('../modules/es7.reflect.has-own-metadata');\nrequire('../modules/es7.reflect.metadata');\nmodule.exports = require('../modules/_core').Reflect;\n","module.exports = function (it) {\n if (typeof it != 'function') throw TypeError(it + ' is not a function!');\n return it;\n};\n","module.exports = function (it, Constructor, name, forbiddenField) {\n if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {\n throw TypeError(name + ': incorrect invocation!');\n } return it;\n};\n","var isObject = require('./_is-object');\nmodule.exports = function (it) {\n if (!isObject(it)) throw TypeError(it + ' is not an object!');\n return it;\n};\n","var forOf = require('./_for-of');\n\nmodule.exports = function (iter, ITERATOR) {\n var result = [];\n forOf(iter, false, result.push, result, ITERATOR);\n return result;\n};\n","// false -> Array#indexOf\n// true -> Array#includes\nvar toIObject = require('./_to-iobject');\nvar toLength = require('./_to-length');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nmodule.exports = function (IS_INCLUDES) {\n return function ($this, el, fromIndex) {\n var O = toIObject($this);\n var length = toLength(O.length);\n var index = toAbsoluteIndex(fromIndex, length);\n var value;\n // Array#includes uses SameValueZero equality algorithm\n // eslint-disable-next-line no-self-compare\n if (IS_INCLUDES && el != el) while (length > index) {\n value = O[index++];\n // eslint-disable-next-line no-self-compare\n if (value != value) return true;\n // Array#indexOf ignores holes, Array#includes - not\n } else for (;length > index; index++) if (IS_INCLUDES || index in O) {\n if (O[index] === el) return IS_INCLUDES || index || 0;\n } return !IS_INCLUDES && -1;\n };\n};\n","// 0 -> Array#forEach\n// 1 -> Array#map\n// 2 -> Array#filter\n// 3 -> Array#some\n// 4 -> Array#every\n// 5 -> Array#find\n// 6 -> Array#findIndex\nvar ctx = require('./_ctx');\nvar IObject = require('./_iobject');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar asc = require('./_array-species-create');\nmodule.exports = function (TYPE, $create) {\n var IS_MAP = TYPE == 1;\n var IS_FILTER = TYPE == 2;\n var IS_SOME = TYPE == 3;\n var IS_EVERY = TYPE == 4;\n var IS_FIND_INDEX = TYPE == 6;\n var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n var create = $create || asc;\n return function ($this, callbackfn, that) {\n var O = toObject($this);\n var self = IObject(O);\n var f = ctx(callbackfn, that, 3);\n var length = toLength(self.length);\n var index = 0;\n var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n var val, res;\n for (;length > index; index++) if (NO_HOLES || index in self) {\n val = self[index];\n res = f(val, index, O);\n if (TYPE) {\n if (IS_MAP) result[index] = res; // map\n else if (res) switch (TYPE) {\n case 3: return true; // some\n case 5: return val; // find\n case 6: return index; // findIndex\n case 2: result.push(val); // filter\n } else if (IS_EVERY) return false; // every\n }\n }\n return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;\n };\n};\n","var isObject = require('./_is-object');\nvar isArray = require('./_is-array');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (original) {\n var C;\n if (isArray(original)) {\n C = original.constructor;\n // cross-realm fallback\n if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n if (isObject(C)) {\n C = C[SPECIES];\n if (C === null) C = undefined;\n }\n } return C === undefined ? Array : C;\n};\n","// 9.4.2.3 ArraySpeciesCreate(originalArray, length)\nvar speciesConstructor = require('./_array-species-constructor');\n\nmodule.exports = function (original, length) {\n return new (speciesConstructor(original))(length);\n};\n","// getting tag from 19.1.3.6 Object.prototype.toString()\nvar cof = require('./_cof');\nvar TAG = require('./_wks')('toStringTag');\n// ES3 wrong here\nvar ARG = cof(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (e) { /* empty */ }\n};\n\nmodule.exports = function (it) {\n var O, T, B;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T\n // builtinTag case\n : ARG ? cof(O)\n // ES3 arguments fallback\n : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;\n};\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n return toString.call(it).slice(8, -1);\n};\n","'use strict';\nvar dP = require('./_object-dp').f;\nvar create = require('./_object-create');\nvar redefineAll = require('./_redefine-all');\nvar ctx = require('./_ctx');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar $iterDefine = require('./_iter-define');\nvar step = require('./_iter-step');\nvar setSpecies = require('./_set-species');\nvar DESCRIPTORS = require('./_descriptors');\nvar fastKey = require('./_meta').fastKey;\nvar validate = require('./_validate-collection');\nvar SIZE = DESCRIPTORS ? '_s' : 'size';\n\nvar getEntry = function (that, key) {\n // fast case\n var index = fastKey(key);\n var entry;\n if (index !== 'F') return that._i[index];\n // frozen object case\n for (entry = that._f; entry; entry = entry.n) {\n if (entry.k == key) return entry;\n }\n};\n\nmodule.exports = {\n getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, NAME, '_i');\n that._t = NAME; // collection type\n that._i = create(null); // index\n that._f = undefined; // first entry\n that._l = undefined; // last entry\n that[SIZE] = 0; // size\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n });\n redefineAll(C.prototype, {\n // 23.1.3.1 Map.prototype.clear()\n // 23.2.3.2 Set.prototype.clear()\n clear: function clear() {\n for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {\n entry.r = true;\n if (entry.p) entry.p = entry.p.n = undefined;\n delete data[entry.i];\n }\n that._f = that._l = undefined;\n that[SIZE] = 0;\n },\n // 23.1.3.3 Map.prototype.delete(key)\n // 23.2.3.4 Set.prototype.delete(value)\n 'delete': function (key) {\n var that = validate(this, NAME);\n var entry = getEntry(that, key);\n if (entry) {\n var next = entry.n;\n var prev = entry.p;\n delete that._i[entry.i];\n entry.r = true;\n if (prev) prev.n = next;\n if (next) next.p = prev;\n if (that._f == entry) that._f = next;\n if (that._l == entry) that._l = prev;\n that[SIZE]--;\n } return !!entry;\n },\n // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)\n // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)\n forEach: function forEach(callbackfn /* , that = undefined */) {\n validate(this, NAME);\n var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var entry;\n while (entry = entry ? entry.n : this._f) {\n f(entry.v, entry.k, this);\n // revert to the last existing entry\n while (entry && entry.r) entry = entry.p;\n }\n },\n // 23.1.3.7 Map.prototype.has(key)\n // 23.2.3.7 Set.prototype.has(value)\n has: function has(key) {\n return !!getEntry(validate(this, NAME), key);\n }\n });\n if (DESCRIPTORS) dP(C.prototype, 'size', {\n get: function () {\n return validate(this, NAME)[SIZE];\n }\n });\n return C;\n },\n def: function (that, key, value) {\n var entry = getEntry(that, key);\n var prev, index;\n // change existing entry\n if (entry) {\n entry.v = value;\n // create new entry\n } else {\n that._l = entry = {\n i: index = fastKey(key, true), // <- index\n k: key, // <- key\n v: value, // <- value\n p: prev = that._l, // <- previous entry\n n: undefined, // <- next entry\n r: false // <- removed\n };\n if (!that._f) that._f = entry;\n if (prev) prev.n = entry;\n that[SIZE]++;\n // add to index\n if (index !== 'F') that._i[index] = entry;\n } return that;\n },\n getEntry: getEntry,\n setStrong: function (C, NAME, IS_MAP) {\n // add .keys, .values, .entries, [@@iterator]\n // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11\n $iterDefine(C, NAME, function (iterated, kind) {\n this._t = validate(iterated, NAME); // target\n this._k = kind; // kind\n this._l = undefined; // previous\n }, function () {\n var that = this;\n var kind = that._k;\n var entry = that._l;\n // revert to the last existing entry\n while (entry && entry.r) entry = entry.p;\n // get next entry\n if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {\n // or finish the iteration\n that._t = undefined;\n return step(1);\n }\n // return step by kind\n if (kind == 'keys') return step(0, entry.k);\n if (kind == 'values') return step(0, entry.v);\n return step(0, [entry.k, entry.v]);\n }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);\n\n // add [@@species], 23.1.2.2, 23.2.2.2\n setSpecies(NAME);\n }\n};\n","'use strict';\nvar redefineAll = require('./_redefine-all');\nvar getWeak = require('./_meta').getWeak;\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar createArrayMethod = require('./_array-methods');\nvar $has = require('./_has');\nvar validate = require('./_validate-collection');\nvar arrayFind = createArrayMethod(5);\nvar arrayFindIndex = createArrayMethod(6);\nvar id = 0;\n\n// fallback for uncaught frozen keys\nvar uncaughtFrozenStore = function (that) {\n return that._l || (that._l = new UncaughtFrozenStore());\n};\nvar UncaughtFrozenStore = function () {\n this.a = [];\n};\nvar findUncaughtFrozen = function (store, key) {\n return arrayFind(store.a, function (it) {\n return it[0] === key;\n });\n};\nUncaughtFrozenStore.prototype = {\n get: function (key) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) return entry[1];\n },\n has: function (key) {\n return !!findUncaughtFrozen(this, key);\n },\n set: function (key, value) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) entry[1] = value;\n else this.a.push([key, value]);\n },\n 'delete': function (key) {\n var index = arrayFindIndex(this.a, function (it) {\n return it[0] === key;\n });\n if (~index) this.a.splice(index, 1);\n return !!~index;\n }\n};\n\nmodule.exports = {\n getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, NAME, '_i');\n that._t = NAME; // collection type\n that._i = id++; // collection id\n that._l = undefined; // leak store for uncaught frozen objects\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n });\n redefineAll(C.prototype, {\n // 23.3.3.2 WeakMap.prototype.delete(key)\n // 23.4.3.3 WeakSet.prototype.delete(value)\n 'delete': function (key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);\n return data && $has(data, this._i) && delete data[this._i];\n },\n // 23.3.3.4 WeakMap.prototype.has(key)\n // 23.4.3.4 WeakSet.prototype.has(value)\n has: function has(key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);\n return data && $has(data, this._i);\n }\n });\n return C;\n },\n def: function (that, key, value) {\n var data = getWeak(anObject(key), true);\n if (data === true) uncaughtFrozenStore(that).set(key, value);\n else data[that._i] = value;\n return that;\n },\n ufstore: uncaughtFrozenStore\n};\n","'use strict';\nvar global = require('./_global');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar redefineAll = require('./_redefine-all');\nvar meta = require('./_meta');\nvar forOf = require('./_for-of');\nvar anInstance = require('./_an-instance');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar $iterDetect = require('./_iter-detect');\nvar setToStringTag = require('./_set-to-string-tag');\nvar inheritIfRequired = require('./_inherit-if-required');\n\nmodule.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {\n var Base = global[NAME];\n var C = Base;\n var ADDER = IS_MAP ? 'set' : 'add';\n var proto = C && C.prototype;\n var O = {};\n var fixMethod = function (KEY) {\n var fn = proto[KEY];\n redefine(proto, KEY,\n KEY == 'delete' ? function (a) {\n return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'has' ? function has(a) {\n return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'get' ? function get(a) {\n return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }\n : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }\n );\n };\n if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {\n new C().entries().next();\n }))) {\n // create collection constructor\n C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);\n redefineAll(C.prototype, methods);\n meta.NEED = true;\n } else {\n var instance = new C();\n // early implementations not supports chaining\n var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;\n // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false\n var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });\n // most early implementations doesn't supports iterables, most modern - not close it correctly\n var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new\n // for early implementations -0 and +0 not the same\n var BUGGY_ZERO = !IS_WEAK && fails(function () {\n // V8 ~ Chromium 42- fails only with 5+ elements\n var $instance = new C();\n var index = 5;\n while (index--) $instance[ADDER](index, index);\n return !$instance.has(-0);\n });\n if (!ACCEPT_ITERABLES) {\n C = wrapper(function (target, iterable) {\n anInstance(target, C, NAME);\n var that = inheritIfRequired(new Base(), target, C);\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n return that;\n });\n C.prototype = proto;\n proto.constructor = C;\n }\n if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {\n fixMethod('delete');\n fixMethod('has');\n IS_MAP && fixMethod('get');\n }\n if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);\n // weak collections should not contains .clear method\n if (IS_WEAK && proto.clear) delete proto.clear;\n }\n\n setToStringTag(C, NAME);\n\n O[NAME] = C;\n $export($export.G + $export.W + $export.F * (C != Base), O);\n\n if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);\n\n return C;\n};\n","var core = module.exports = { version: '2.5.7' };\nif (typeof __e == 'number') __e = core; // eslint-disable-line no-undef\n","// optional / simple context binding\nvar aFunction = require('./_a-function');\nmodule.exports = function (fn, that, length) {\n aFunction(fn);\n if (that === undefined) return fn;\n switch (length) {\n case 1: return function (a) {\n return fn.call(that, a);\n };\n case 2: return function (a, b) {\n return fn.call(that, a, b);\n };\n case 3: return function (a, b, c) {\n return fn.call(that, a, b, c);\n };\n }\n return function (/* ...args */) {\n return fn.apply(that, arguments);\n };\n};\n","// 7.2.1 RequireObjectCoercible(argument)\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","// Thank's IE8 for his funny defineProperty\nmodule.exports = !require('./_fails')(function () {\n return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;\n});\n","var isObject = require('./_is-object');\nvar document = require('./_global').document;\n// typeof document.createElement is 'object' in old IE\nvar is = isObject(document) && isObject(document.createElement);\nmodule.exports = function (it) {\n return is ? document.createElement(it) : {};\n};\n","// IE 8- don't enum bug keys\nmodule.exports = (\n 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'\n).split(',');\n","var global = require('./_global');\nvar core = require('./_core');\nvar hide = require('./_hide');\nvar redefine = require('./_redefine');\nvar ctx = require('./_ctx');\nvar PROTOTYPE = 'prototype';\n\nvar $export = function (type, name, source) {\n var IS_FORCED = type & $export.F;\n var IS_GLOBAL = type & $export.G;\n var IS_STATIC = type & $export.S;\n var IS_PROTO = type & $export.P;\n var IS_BIND = type & $export.B;\n var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];\n var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});\n var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});\n var key, own, out, exp;\n if (IS_GLOBAL) source = name;\n for (key in source) {\n // contains in native\n own = !IS_FORCED && target && target[key] !== undefined;\n // export native or passed\n out = (own ? target : source)[key];\n // bind timers to global for call from export context\n exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;\n // extend global\n if (target) redefine(target, key, out, type & $export.U);\n // export\n if (exports[key] != out) hide(exports, key, exp);\n if (IS_PROTO && expProto[key] != out) expProto[key] = out;\n }\n};\nglobal.core = core;\n// type bitmap\n$export.F = 1; // forced\n$export.G = 2; // global\n$export.S = 4; // static\n$export.P = 8; // proto\n$export.B = 16; // bind\n$export.W = 32; // wrap\n$export.U = 64; // safe\n$export.R = 128; // real proto method for `library`\nmodule.exports = $export;\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (e) {\n return true;\n }\n};\n","var ctx = require('./_ctx');\nvar call = require('./_iter-call');\nvar isArrayIter = require('./_is-array-iter');\nvar anObject = require('./_an-object');\nvar toLength = require('./_to-length');\nvar getIterFn = require('./core.get-iterator-method');\nvar BREAK = {};\nvar RETURN = {};\nvar exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {\n var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);\n var f = ctx(fn, that, entries ? 2 : 1);\n var index = 0;\n var length, step, iterator, result;\n if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');\n // fast case for arrays with default iterator\n if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {\n result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);\n if (result === BREAK || result === RETURN) return result;\n } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {\n result = call(iterator, f, step.value, entries);\n if (result === BREAK || result === RETURN) return result;\n }\n};\nexports.BREAK = BREAK;\nexports.RETURN = RETURN;\n","// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nvar global = module.exports = typeof window != 'undefined' && window.Math == Math\n ? window : typeof self != 'undefined' && self.Math == Math ? self\n // eslint-disable-next-line no-new-func\n : Function('return this')();\nif (typeof __g == 'number') __g = global; // eslint-disable-line no-undef\n","var hasOwnProperty = {}.hasOwnProperty;\nmodule.exports = function (it, key) {\n return hasOwnProperty.call(it, key);\n};\n","var dP = require('./_object-dp');\nvar createDesc = require('./_property-desc');\nmodule.exports = require('./_descriptors') ? function (object, key, value) {\n return dP.f(object, key, createDesc(1, value));\n} : function (object, key, value) {\n object[key] = value;\n return object;\n};\n","var document = require('./_global').document;\nmodule.exports = document && document.documentElement;\n","module.exports = !require('./_descriptors') && !require('./_fails')(function () {\n return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;\n});\n","var isObject = require('./_is-object');\nvar setPrototypeOf = require('./_set-proto').set;\nmodule.exports = function (that, target, C) {\n var S = target.constructor;\n var P;\n if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {\n setPrototypeOf(that, P);\n } return that;\n};\n","// fallback for non-array-like ES3 and non-enumerable old V8 strings\nvar cof = require('./_cof');\n// eslint-disable-next-line no-prototype-builtins\nmodule.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {\n return cof(it) == 'String' ? it.split('') : Object(it);\n};\n","// check on default Array iterator\nvar Iterators = require('./_iterators');\nvar ITERATOR = require('./_wks')('iterator');\nvar ArrayProto = Array.prototype;\n\nmodule.exports = function (it) {\n return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);\n};\n","// 7.2.2 IsArray(argument)\nvar cof = require('./_cof');\nmodule.exports = Array.isArray || function isArray(arg) {\n return cof(arg) == 'Array';\n};\n","module.exports = function (it) {\n return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","// call something on iterator step with safe closing on error\nvar anObject = require('./_an-object');\nmodule.exports = function (iterator, fn, value, entries) {\n try {\n return entries ? fn(anObject(value)[0], value[1]) : fn(value);\n // 7.4.6 IteratorClose(iterator, completion)\n } catch (e) {\n var ret = iterator['return'];\n if (ret !== undefined) anObject(ret.call(iterator));\n throw e;\n }\n};\n","'use strict';\nvar create = require('./_object-create');\nvar descriptor = require('./_property-desc');\nvar setToStringTag = require('./_set-to-string-tag');\nvar IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nrequire('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });\n\nmodule.exports = function (Constructor, NAME, next) {\n Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });\n setToStringTag(Constructor, NAME + ' Iterator');\n};\n","'use strict';\nvar LIBRARY = require('./_library');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar hide = require('./_hide');\nvar Iterators = require('./_iterators');\nvar $iterCreate = require('./_iter-create');\nvar setToStringTag = require('./_set-to-string-tag');\nvar getPrototypeOf = require('./_object-gpo');\nvar ITERATOR = require('./_wks')('iterator');\nvar BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`\nvar FF_ITERATOR = '@@iterator';\nvar KEYS = 'keys';\nvar VALUES = 'values';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {\n $iterCreate(Constructor, NAME, next);\n var getMethod = function (kind) {\n if (!BUGGY && kind in proto) return proto[kind];\n switch (kind) {\n case KEYS: return function keys() { return new Constructor(this, kind); };\n case VALUES: return function values() { return new Constructor(this, kind); };\n } return function entries() { return new Constructor(this, kind); };\n };\n var TAG = NAME + ' Iterator';\n var DEF_VALUES = DEFAULT == VALUES;\n var VALUES_BUG = false;\n var proto = Base.prototype;\n var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];\n var $default = $native || getMethod(DEFAULT);\n var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;\n var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;\n var methods, key, IteratorPrototype;\n // Fix native\n if ($anyNative) {\n IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));\n if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {\n // Set @@toStringTag to native iterators\n setToStringTag(IteratorPrototype, TAG, true);\n // fix for some old engines\n if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);\n }\n }\n // fix Array#{values, @@iterator}.name in V8 / FF\n if (DEF_VALUES && $native && $native.name !== VALUES) {\n VALUES_BUG = true;\n $default = function values() { return $native.call(this); };\n }\n // Define iterator\n if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {\n hide(proto, ITERATOR, $default);\n }\n // Plug for library\n Iterators[NAME] = $default;\n Iterators[TAG] = returnThis;\n if (DEFAULT) {\n methods = {\n values: DEF_VALUES ? $default : getMethod(VALUES),\n keys: IS_SET ? $default : getMethod(KEYS),\n entries: $entries\n };\n if (FORCED) for (key in methods) {\n if (!(key in proto)) redefine(proto, key, methods[key]);\n } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);\n }\n return methods;\n};\n","var ITERATOR = require('./_wks')('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n var riter = [7][ITERATOR]();\n riter['return'] = function () { SAFE_CLOSING = true; };\n // eslint-disable-next-line no-throw-literal\n Array.from(riter, function () { throw 2; });\n} catch (e) { /* empty */ }\n\nmodule.exports = function (exec, skipClosing) {\n if (!skipClosing && !SAFE_CLOSING) return false;\n var safe = false;\n try {\n var arr = [7];\n var iter = arr[ITERATOR]();\n iter.next = function () { return { done: safe = true }; };\n arr[ITERATOR] = function () { return iter; };\n exec(arr);\n } catch (e) { /* empty */ }\n return safe;\n};\n","module.exports = function (done, value) {\n return { value: value, done: !!done };\n};\n","module.exports = {};\n","module.exports = false;\n","var META = require('./_uid')('meta');\nvar isObject = require('./_is-object');\nvar has = require('./_has');\nvar setDesc = require('./_object-dp').f;\nvar id = 0;\nvar isExtensible = Object.isExtensible || function () {\n return true;\n};\nvar FREEZE = !require('./_fails')(function () {\n return isExtensible(Object.preventExtensions({}));\n});\nvar setMeta = function (it) {\n setDesc(it, META, { value: {\n i: 'O' + ++id, // object ID\n w: {} // weak collections IDs\n } });\n};\nvar fastKey = function (it, create) {\n // return primitive with prefix\n if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return 'F';\n // not necessary to add metadata\n if (!create) return 'E';\n // add missing metadata\n setMeta(it);\n // return object ID\n } return it[META].i;\n};\nvar getWeak = function (it, create) {\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return true;\n // not necessary to add metadata\n if (!create) return false;\n // add missing metadata\n setMeta(it);\n // return hash weak collections IDs\n } return it[META].w;\n};\n// add metadata on freeze-family methods calling\nvar onFreeze = function (it) {\n if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);\n return it;\n};\nvar meta = module.exports = {\n KEY: META,\n NEED: false,\n fastKey: fastKey,\n getWeak: getWeak,\n onFreeze: onFreeze\n};\n","var Map = require('./es6.map');\nvar $export = require('./_export');\nvar shared = require('./_shared')('metadata');\nvar store = shared.store || (shared.store = new (require('./es6.weak-map'))());\n\nvar getOrCreateMetadataMap = function (target, targetKey, create) {\n var targetMetadata = store.get(target);\n if (!targetMetadata) {\n if (!create) return undefined;\n store.set(target, targetMetadata = new Map());\n }\n var keyMetadata = targetMetadata.get(targetKey);\n if (!keyMetadata) {\n if (!create) return undefined;\n targetMetadata.set(targetKey, keyMetadata = new Map());\n } return keyMetadata;\n};\nvar ordinaryHasOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? false : metadataMap.has(MetadataKey);\n};\nvar ordinaryGetOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);\n};\nvar ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {\n getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);\n};\nvar ordinaryOwnMetadataKeys = function (target, targetKey) {\n var metadataMap = getOrCreateMetadataMap(target, targetKey, false);\n var keys = [];\n if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });\n return keys;\n};\nvar toMetaKey = function (it) {\n return it === undefined || typeof it == 'symbol' ? it : String(it);\n};\nvar exp = function (O) {\n $export($export.S, 'Reflect', O);\n};\n\nmodule.exports = {\n store: store,\n map: getOrCreateMetadataMap,\n has: ordinaryHasOwnMetadata,\n get: ordinaryGetOwnMetadata,\n set: ordinaryDefineOwnMetadata,\n keys: ordinaryOwnMetadataKeys,\n key: toMetaKey,\n exp: exp\n};\n","'use strict';\n// 19.1.2.1 Object.assign(target, source, ...)\nvar getKeys = require('./_object-keys');\nvar gOPS = require('./_object-gops');\nvar pIE = require('./_object-pie');\nvar toObject = require('./_to-object');\nvar IObject = require('./_iobject');\nvar $assign = Object.assign;\n\n// should work with symbols and should have deterministic property order (V8 bug)\nmodule.exports = !$assign || require('./_fails')(function () {\n var A = {};\n var B = {};\n // eslint-disable-next-line no-undef\n var S = Symbol();\n var K = 'abcdefghijklmnopqrst';\n A[S] = 7;\n K.split('').forEach(function (k) { B[k] = k; });\n return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var aLen = arguments.length;\n var index = 1;\n var getSymbols = gOPS.f;\n var isEnum = pIE.f;\n while (aLen > index) {\n var S = IObject(arguments[index++]);\n var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];\n } return T;\n} : $assign;\n","// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\nvar anObject = require('./_an-object');\nvar dPs = require('./_object-dps');\nvar enumBugKeys = require('./_enum-bug-keys');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar Empty = function () { /* empty */ };\nvar PROTOTYPE = 'prototype';\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar createDict = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = require('./_dom-create')('iframe');\n var i = enumBugKeys.length;\n var lt = '<';\n var gt = '>';\n var iframeDocument;\n iframe.style.display = 'none';\n require('./_html').appendChild(iframe);\n iframe.src = 'javascript:'; // eslint-disable-line no-script-url\n // createDict = iframe.contentWindow.Object;\n // html.removeChild(iframe);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);\n iframeDocument.close();\n createDict = iframeDocument.F;\n while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];\n return createDict();\n};\n\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n Empty[PROTOTYPE] = anObject(O);\n result = new Empty();\n Empty[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = createDict();\n return Properties === undefined ? result : dPs(result, Properties);\n};\n","var anObject = require('./_an-object');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar toPrimitive = require('./_to-primitive');\nvar dP = Object.defineProperty;\n\nexports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {\n anObject(O);\n P = toPrimitive(P, true);\n anObject(Attributes);\n if (IE8_DOM_DEFINE) try {\n return dP(O, P, Attributes);\n } catch (e) { /* empty */ }\n if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');\n if ('value' in Attributes) O[P] = Attributes.value;\n return O;\n};\n","var dP = require('./_object-dp');\nvar anObject = require('./_an-object');\nvar getKeys = require('./_object-keys');\n\nmodule.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = getKeys(Properties);\n var length = keys.length;\n var i = 0;\n var P;\n while (length > i) dP.f(O, P = keys[i++], Properties[P]);\n return O;\n};\n","var pIE = require('./_object-pie');\nvar createDesc = require('./_property-desc');\nvar toIObject = require('./_to-iobject');\nvar toPrimitive = require('./_to-primitive');\nvar has = require('./_has');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar gOPD = Object.getOwnPropertyDescriptor;\n\nexports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {\n O = toIObject(O);\n P = toPrimitive(P, true);\n if (IE8_DOM_DEFINE) try {\n return gOPD(O, P);\n } catch (e) { /* empty */ }\n if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);\n};\n","exports.f = Object.getOwnPropertySymbols;\n","// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)\nvar has = require('./_has');\nvar toObject = require('./_to-object');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar ObjectProto = Object.prototype;\n\nmodule.exports = Object.getPrototypeOf || function (O) {\n O = toObject(O);\n if (has(O, IE_PROTO)) return O[IE_PROTO];\n if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n return O.constructor.prototype;\n } return O instanceof Object ? ObjectProto : null;\n};\n","var has = require('./_has');\nvar toIObject = require('./_to-iobject');\nvar arrayIndexOf = require('./_array-includes')(false);\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\n\nmodule.exports = function (object, names) {\n var O = toIObject(object);\n var i = 0;\n var result = [];\n var key;\n for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);\n // Don't enum bug & hidden keys\n while (names.length > i) if (has(O, key = names[i++])) {\n ~arrayIndexOf(result, key) || result.push(key);\n }\n return result;\n};\n","// 19.1.2.14 / 15.2.3.14 Object.keys(O)\nvar $keys = require('./_object-keys-internal');\nvar enumBugKeys = require('./_enum-bug-keys');\n\nmodule.exports = Object.keys || function keys(O) {\n return $keys(O, enumBugKeys);\n};\n","exports.f = {}.propertyIsEnumerable;\n","module.exports = function (bitmap, value) {\n return {\n enumerable: !(bitmap & 1),\n configurable: !(bitmap & 2),\n writable: !(bitmap & 4),\n value: value\n };\n};\n","var redefine = require('./_redefine');\nmodule.exports = function (target, src, safe) {\n for (var key in src) redefine(target, key, src[key], safe);\n return target;\n};\n","var global = require('./_global');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar SRC = require('./_uid')('src');\nvar TO_STRING = 'toString';\nvar $toString = Function[TO_STRING];\nvar TPL = ('' + $toString).split(TO_STRING);\n\nrequire('./_core').inspectSource = function (it) {\n return $toString.call(it);\n};\n\n(module.exports = function (O, key, val, safe) {\n var isFunction = typeof val == 'function';\n if (isFunction) has(val, 'name') || hide(val, 'name', key);\n if (O[key] === val) return;\n if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));\n if (O === global) {\n O[key] = val;\n } else if (!safe) {\n delete O[key];\n hide(O, key, val);\n } else if (O[key]) {\n O[key] = val;\n } else {\n hide(O, key, val);\n }\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, TO_STRING, function toString() {\n return typeof this == 'function' && this[SRC] || $toString.call(this);\n});\n","// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nvar isObject = require('./_is-object');\nvar anObject = require('./_an-object');\nvar check = function (O, proto) {\n anObject(O);\n if (!isObject(proto) && proto !== null) throw TypeError(proto + \": can't set as prototype!\");\n};\nmodule.exports = {\n set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line\n function (test, buggy, set) {\n try {\n set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);\n set(test, []);\n buggy = !(test instanceof Array);\n } catch (e) { buggy = true; }\n return function setPrototypeOf(O, proto) {\n check(O, proto);\n if (buggy) O.__proto__ = proto;\n else set(O, proto);\n return O;\n };\n }({}, false) : undefined),\n check: check\n};\n","'use strict';\nvar global = require('./_global');\nvar dP = require('./_object-dp');\nvar DESCRIPTORS = require('./_descriptors');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (KEY) {\n var C = global[KEY];\n if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {\n configurable: true,\n get: function () { return this; }\n });\n};\n","var def = require('./_object-dp').f;\nvar has = require('./_has');\nvar TAG = require('./_wks')('toStringTag');\n\nmodule.exports = function (it, tag, stat) {\n if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });\n};\n","var shared = require('./_shared')('keys');\nvar uid = require('./_uid');\nmodule.exports = function (key) {\n return shared[key] || (shared[key] = uid(key));\n};\n","var core = require('./_core');\nvar global = require('./_global');\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || (global[SHARED] = {});\n\n(module.exports = function (key, value) {\n return store[key] || (store[key] = value !== undefined ? value : {});\n})('versions', []).push({\n version: core.version,\n mode: require('./_library') ? 'pure' : 'global',\n copyright: '© 2018 Denis Pushkarev (zloirock.ru)'\n});\n","var toInteger = require('./_to-integer');\nvar max = Math.max;\nvar min = Math.min;\nmodule.exports = function (index, length) {\n index = toInteger(index);\n return index < 0 ? max(index + length, 0) : min(index, length);\n};\n","// 7.1.4 ToInteger\nvar ceil = Math.ceil;\nvar floor = Math.floor;\nmodule.exports = function (it) {\n return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);\n};\n","// to indexed object, toObject with fallback for non-array-like ES3 strings\nvar IObject = require('./_iobject');\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return IObject(defined(it));\n};\n","// 7.1.15 ToLength\nvar toInteger = require('./_to-integer');\nvar min = Math.min;\nmodule.exports = function (it) {\n return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991\n};\n","// 7.1.13 ToObject(argument)\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return Object(defined(it));\n};\n","// 7.1.1 ToPrimitive(input [, PreferredType])\nvar isObject = require('./_is-object');\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (it, S) {\n if (!isObject(it)) return it;\n var fn, val;\n if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;\n if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","var id = 0;\nvar px = Math.random();\nmodule.exports = function (key) {\n return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));\n};\n","var isObject = require('./_is-object');\nmodule.exports = function (it, TYPE) {\n if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');\n return it;\n};\n","var store = require('./_shared')('wks');\nvar uid = require('./_uid');\nvar Symbol = require('./_global').Symbol;\nvar USE_SYMBOL = typeof Symbol == 'function';\n\nvar $exports = module.exports = function (name) {\n return store[name] || (store[name] =\n USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));\n};\n\n$exports.store = store;\n","var classof = require('./_classof');\nvar ITERATOR = require('./_wks')('iterator');\nvar Iterators = require('./_iterators');\nmodule.exports = require('./_core').getIteratorMethod = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar MAP = 'Map';\n\n// 23.1 Map Objects\nmodule.exports = require('./_collection')(MAP, function (get) {\n return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n // 23.1.3.6 Map.prototype.get(key)\n get: function get(key) {\n var entry = strong.getEntry(validate(this, MAP), key);\n return entry && entry.v;\n },\n // 23.1.3.9 Map.prototype.set(key, value)\n set: function set(key, value) {\n return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);\n }\n}, strong, true);\n","'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar SET = 'Set';\n\n// 23.2 Set Objects\nmodule.exports = require('./_collection')(SET, function (get) {\n return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n // 23.2.3.1 Set.prototype.add(value)\n add: function add(value) {\n return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);\n }\n}, strong);\n","'use strict';\nvar each = require('./_array-methods')(0);\nvar redefine = require('./_redefine');\nvar meta = require('./_meta');\nvar assign = require('./_object-assign');\nvar weak = require('./_collection-weak');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar validate = require('./_validate-collection');\nvar WEAK_MAP = 'WeakMap';\nvar getWeak = meta.getWeak;\nvar isExtensible = Object.isExtensible;\nvar uncaughtFrozenStore = weak.ufstore;\nvar tmp = {};\nvar InternalMap;\n\nvar wrapper = function (get) {\n return function WeakMap() {\n return get(this, arguments.length > 0 ? arguments[0] : undefined);\n };\n};\n\nvar methods = {\n // 23.3.3.3 WeakMap.prototype.get(key)\n get: function get(key) {\n if (isObject(key)) {\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);\n return data ? data[this._i] : undefined;\n }\n },\n // 23.3.3.5 WeakMap.prototype.set(key, value)\n set: function set(key, value) {\n return weak.def(validate(this, WEAK_MAP), key, value);\n }\n};\n\n// 23.3 WeakMap Objects\nvar $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);\n\n// IE11 WeakMap frozen keys fix\nif (fails(function () { return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7; })) {\n InternalMap = weak.getConstructor(wrapper, WEAK_MAP);\n assign(InternalMap.prototype, methods);\n meta.NEED = true;\n each(['delete', 'has', 'get', 'set'], function (key) {\n var proto = $WeakMap.prototype;\n var method = proto[key];\n redefine(proto, key, function (a, b) {\n // store frozen objects on internal weakmap shim\n if (isObject(a) && !isExtensible(a)) {\n if (!this._f) this._f = new InternalMap();\n var result = this._f[key](a, b);\n return key == 'set' ? this : result;\n // store all the rest on native weakmap\n } return method.call(this, a, b);\n });\n });\n}\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar ordinaryDefineOwnMetadata = metadata.set;\n\nmetadata.exp({ defineMetadata: function defineMetadata(metadataKey, metadataValue, target, targetKey) {\n ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetaKey(targetKey));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar getOrCreateMetadataMap = metadata.map;\nvar store = metadata.store;\n\nmetadata.exp({ deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetaKey(arguments[2]);\n var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);\n if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;\n if (metadataMap.size) return true;\n var targetMetadata = store.get(target);\n targetMetadata['delete'](targetKey);\n return !!targetMetadata.size || store['delete'](target);\n} });\n","var Set = require('./es6.set');\nvar from = require('./_array-from-iterable');\nvar metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nvar ordinaryMetadataKeys = function (O, P) {\n var oKeys = ordinaryOwnMetadataKeys(O, P);\n var parent = getPrototypeOf(O);\n if (parent === null) return oKeys;\n var pKeys = ordinaryMetadataKeys(parent, P);\n return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;\n};\n\nmetadata.exp({ getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {\n return ordinaryMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nvar ordinaryGetMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;\n};\n\nmetadata.exp({ getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryGetMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {\n return ordinaryOwnMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryGetOwnMetadata(metadataKey, anObject(target)\n , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nvar ordinaryHasMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return true;\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;\n};\n\nmetadata.exp({ hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryHasOwnMetadata(metadataKey, anObject(target)\n , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var $metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar toMetaKey = $metadata.key;\nvar ordinaryDefineOwnMetadata = $metadata.set;\n\n$metadata.exp({ metadata: function metadata(metadataKey, metadataValue) {\n return function decorator(target, targetKey) {\n ordinaryDefineOwnMetadata(\n metadataKey, metadataValue,\n (targetKey !== undefined ? anObject : aFunction)(target),\n toMetaKey(targetKey)\n );\n };\n} });\n","/*! Hammer.JS - v2.0.7 - 2016-04-22\n * http://hammerjs.github.io/\n *\n * Copyright (c) 2016 Jorik Tangelder;\n * Licensed under the MIT license */\n(function(window, document, exportName, undefined) {\n 'use strict';\n\nvar VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];\nvar TEST_ELEMENT = document.createElement('div');\n\nvar TYPE_FUNCTION = 'function';\n\nvar round = Math.round;\nvar abs = Math.abs;\nvar now = Date.now;\n\n/**\n * set a timeout with a given scope\n * @param {Function} fn\n * @param {Number} timeout\n * @param {Object} context\n * @returns {number}\n */\nfunction setTimeoutContext(fn, timeout, context) {\n return setTimeout(bindFn(fn, context), timeout);\n}\n\n/**\n * if the argument is an array, we want to execute the fn on each entry\n * if it aint an array we don't want to do a thing.\n * this is used by all the methods that accept a single and array argument.\n * @param {*|Array} arg\n * @param {String} fn\n * @param {Object} [context]\n * @returns {Boolean}\n */\nfunction invokeArrayArg(arg, fn, context) {\n if (Array.isArray(arg)) {\n each(arg, context[fn], context);\n return true;\n }\n return false;\n}\n\n/**\n * walk objects and arrays\n * @param {Object} obj\n * @param {Function} iterator\n * @param {Object} context\n */\nfunction each(obj, iterator, context) {\n var i;\n\n if (!obj) {\n return;\n }\n\n if (obj.forEach) {\n obj.forEach(iterator, context);\n } else if (obj.length !== undefined) {\n i = 0;\n while (i < obj.length) {\n iterator.call(context, obj[i], i, obj);\n i++;\n }\n } else {\n for (i in obj) {\n obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);\n }\n }\n}\n\n/**\n * wrap a method with a deprecation warning and stack trace\n * @param {Function} method\n * @param {String} name\n * @param {String} message\n * @returns {Function} A new function wrapping the supplied method.\n */\nfunction deprecate(method, name, message) {\n var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\\n' + message + ' AT \\n';\n return function() {\n var e = new Error('get-stack-trace');\n var stack = e && e.stack ? e.stack.replace(/^[^\\(]+?[\\n$]/gm, '')\n .replace(/^\\s+at\\s+/gm, '')\n .replace(/^Object.\\s*\\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';\n\n var log = window.console && (window.console.warn || window.console.log);\n if (log) {\n log.call(window.console, deprecationMessage, stack);\n }\n return method.apply(this, arguments);\n };\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} target\n * @param {...Object} objects_to_assign\n * @returns {Object} target\n */\nvar assign;\nif (typeof Object.assign !== 'function') {\n assign = function assign(target) {\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n\n var output = Object(target);\n for (var index = 1; index < arguments.length; index++) {\n var source = arguments[index];\n if (source !== undefined && source !== null) {\n for (var nextKey in source) {\n if (source.hasOwnProperty(nextKey)) {\n output[nextKey] = source[nextKey];\n }\n }\n }\n }\n return output;\n };\n} else {\n assign = Object.assign;\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} dest\n * @param {Object} src\n * @param {Boolean} [merge=false]\n * @returns {Object} dest\n */\nvar extend = deprecate(function extend(dest, src, merge) {\n var keys = Object.keys(src);\n var i = 0;\n while (i < keys.length) {\n if (!merge || (merge && dest[keys[i]] === undefined)) {\n dest[keys[i]] = src[keys[i]];\n }\n i++;\n }\n return dest;\n}, 'extend', 'Use `assign`.');\n\n/**\n * merge the values from src in the dest.\n * means that properties that exist in dest will not be overwritten by src\n * @param {Object} dest\n * @param {Object} src\n * @returns {Object} dest\n */\nvar merge = deprecate(function merge(dest, src) {\n return extend(dest, src, true);\n}, 'merge', 'Use `assign`.');\n\n/**\n * simple class inheritance\n * @param {Function} child\n * @param {Function} base\n * @param {Object} [properties]\n */\nfunction inherit(child, base, properties) {\n var baseP = base.prototype,\n childP;\n\n childP = child.prototype = Object.create(baseP);\n childP.constructor = child;\n childP._super = baseP;\n\n if (properties) {\n assign(childP, properties);\n }\n}\n\n/**\n * simple function bind\n * @param {Function} fn\n * @param {Object} context\n * @returns {Function}\n */\nfunction bindFn(fn, context) {\n return function boundFn() {\n return fn.apply(context, arguments);\n };\n}\n\n/**\n * let a boolean value also be a function that must return a boolean\n * this first item in args will be used as the context\n * @param {Boolean|Function} val\n * @param {Array} [args]\n * @returns {Boolean}\n */\nfunction boolOrFn(val, args) {\n if (typeof val == TYPE_FUNCTION) {\n return val.apply(args ? args[0] || undefined : undefined, args);\n }\n return val;\n}\n\n/**\n * use the val2 when val1 is undefined\n * @param {*} val1\n * @param {*} val2\n * @returns {*}\n */\nfunction ifUndefined(val1, val2) {\n return (val1 === undefined) ? val2 : val1;\n}\n\n/**\n * addEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction addEventListeners(target, types, handler) {\n each(splitStr(types), function(type) {\n target.addEventListener(type, handler, false);\n });\n}\n\n/**\n * removeEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction removeEventListeners(target, types, handler) {\n each(splitStr(types), function(type) {\n target.removeEventListener(type, handler, false);\n });\n}\n\n/**\n * find if a node is in the given parent\n * @method hasParent\n * @param {HTMLElement} node\n * @param {HTMLElement} parent\n * @return {Boolean} found\n */\nfunction hasParent(node, parent) {\n while (node) {\n if (node == parent) {\n return true;\n }\n node = node.parentNode;\n }\n return false;\n}\n\n/**\n * small indexOf wrapper\n * @param {String} str\n * @param {String} find\n * @returns {Boolean} found\n */\nfunction inStr(str, find) {\n return str.indexOf(find) > -1;\n}\n\n/**\n * split string on whitespace\n * @param {String} str\n * @returns {Array} words\n */\nfunction splitStr(str) {\n return str.trim().split(/\\s+/g);\n}\n\n/**\n * find if a array contains the object using indexOf or a simple polyFill\n * @param {Array} src\n * @param {String} find\n * @param {String} [findByKey]\n * @return {Boolean|Number} false when not found, or the index\n */\nfunction inArray(src, find, findByKey) {\n if (src.indexOf && !findByKey) {\n return src.indexOf(find);\n } else {\n var i = 0;\n while (i < src.length) {\n if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) {\n return i;\n }\n i++;\n }\n return -1;\n }\n}\n\n/**\n * convert array-like objects to real arrays\n * @param {Object} obj\n * @returns {Array}\n */\nfunction toArray(obj) {\n return Array.prototype.slice.call(obj, 0);\n}\n\n/**\n * unique array with objects based on a key (like 'id') or just by the array's value\n * @param {Array} src [{id:1},{id:2},{id:1}]\n * @param {String} [key]\n * @param {Boolean} [sort=False]\n * @returns {Array} [{id:1},{id:2}]\n */\nfunction uniqueArray(src, key, sort) {\n var results = [];\n var values = [];\n var i = 0;\n\n while (i < src.length) {\n var val = key ? src[i][key] : src[i];\n if (inArray(values, val) < 0) {\n results.push(src[i]);\n }\n values[i] = val;\n i++;\n }\n\n if (sort) {\n if (!key) {\n results = results.sort();\n } else {\n results = results.sort(function sortUniqueArray(a, b) {\n return a[key] > b[key];\n });\n }\n }\n\n return results;\n}\n\n/**\n * get the prefixed property\n * @param {Object} obj\n * @param {String} property\n * @returns {String|Undefined} prefixed\n */\nfunction prefixed(obj, property) {\n var prefix, prop;\n var camelProp = property[0].toUpperCase() + property.slice(1);\n\n var i = 0;\n while (i < VENDOR_PREFIXES.length) {\n prefix = VENDOR_PREFIXES[i];\n prop = (prefix) ? prefix + camelProp : property;\n\n if (prop in obj) {\n return prop;\n }\n i++;\n }\n return undefined;\n}\n\n/**\n * get a unique id\n * @returns {number} uniqueId\n */\nvar _uniqueId = 1;\nfunction uniqueId() {\n return _uniqueId++;\n}\n\n/**\n * get the window object of an element\n * @param {HTMLElement} element\n * @returns {DocumentView|Window}\n */\nfunction getWindowForElement(element) {\n var doc = element.ownerDocument || element;\n return (doc.defaultView || doc.parentWindow || window);\n}\n\nvar MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;\n\nvar SUPPORT_TOUCH = ('ontouchstart' in window);\nvar SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined;\nvar SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);\n\nvar INPUT_TYPE_TOUCH = 'touch';\nvar INPUT_TYPE_PEN = 'pen';\nvar INPUT_TYPE_MOUSE = 'mouse';\nvar INPUT_TYPE_KINECT = 'kinect';\n\nvar COMPUTE_INTERVAL = 25;\n\nvar INPUT_START = 1;\nvar INPUT_MOVE = 2;\nvar INPUT_END = 4;\nvar INPUT_CANCEL = 8;\n\nvar DIRECTION_NONE = 1;\nvar DIRECTION_LEFT = 2;\nvar DIRECTION_RIGHT = 4;\nvar DIRECTION_UP = 8;\nvar DIRECTION_DOWN = 16;\n\nvar DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;\nvar DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;\nvar DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;\n\nvar PROPS_XY = ['x', 'y'];\nvar PROPS_CLIENT_XY = ['clientX', 'clientY'];\n\n/**\n * create new input type manager\n * @param {Manager} manager\n * @param {Function} callback\n * @returns {Input}\n * @constructor\n */\nfunction Input(manager, callback) {\n var self = this;\n this.manager = manager;\n this.callback = callback;\n this.element = manager.element;\n this.target = manager.options.inputTarget;\n\n // smaller wrapper around the handler, for the scope and the enabled state of the manager,\n // so when disabled the input events are completely bypassed.\n this.domHandler = function(ev) {\n if (boolOrFn(manager.options.enable, [manager])) {\n self.handler(ev);\n }\n };\n\n this.init();\n\n}\n\nInput.prototype = {\n /**\n * should handle the inputEvent data and trigger the callback\n * @virtual\n */\n handler: function() { },\n\n /**\n * bind the events\n */\n init: function() {\n this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);\n this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);\n this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n },\n\n /**\n * unbind the events\n */\n destroy: function() {\n this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);\n this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);\n this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n }\n};\n\n/**\n * create new input type manager\n * called by the Manager constructor\n * @param {Hammer} manager\n * @returns {Input}\n */\nfunction createInputInstance(manager) {\n var Type;\n var inputClass = manager.options.inputClass;\n\n if (inputClass) {\n Type = inputClass;\n } else if (SUPPORT_POINTER_EVENTS) {\n Type = PointerEventInput;\n } else if (SUPPORT_ONLY_TOUCH) {\n Type = TouchInput;\n } else if (!SUPPORT_TOUCH) {\n Type = MouseInput;\n } else {\n Type = TouchMouseInput;\n }\n return new (Type)(manager, inputHandler);\n}\n\n/**\n * handle input events\n * @param {Manager} manager\n * @param {String} eventType\n * @param {Object} input\n */\nfunction inputHandler(manager, eventType, input) {\n var pointersLen = input.pointers.length;\n var changedPointersLen = input.changedPointers.length;\n var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0));\n var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0));\n\n input.isFirst = !!isFirst;\n input.isFinal = !!isFinal;\n\n if (isFirst) {\n manager.session = {};\n }\n\n // source event is the normalized value of the domEvents\n // like 'touchstart, mouseup, pointerdown'\n input.eventType = eventType;\n\n // compute scale, rotation etc\n computeInputData(manager, input);\n\n // emit secret event\n manager.emit('hammer.input', input);\n\n manager.recognize(input);\n manager.session.prevInput = input;\n}\n\n/**\n * extend the data with some usable properties like scale, rotate, velocity etc\n * @param {Object} manager\n * @param {Object} input\n */\nfunction computeInputData(manager, input) {\n var session = manager.session;\n var pointers = input.pointers;\n var pointersLength = pointers.length;\n\n // store the first input to calculate the distance and direction\n if (!session.firstInput) {\n session.firstInput = simpleCloneInputData(input);\n }\n\n // to compute scale and rotation we need to store the multiple touches\n if (pointersLength > 1 && !session.firstMultiple) {\n session.firstMultiple = simpleCloneInputData(input);\n } else if (pointersLength === 1) {\n session.firstMultiple = false;\n }\n\n var firstInput = session.firstInput;\n var firstMultiple = session.firstMultiple;\n var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;\n\n var center = input.center = getCenter(pointers);\n input.timeStamp = now();\n input.deltaTime = input.timeStamp - firstInput.timeStamp;\n\n input.angle = getAngle(offsetCenter, center);\n input.distance = getDistance(offsetCenter, center);\n\n computeDeltaXY(session, input);\n input.offsetDirection = getDirection(input.deltaX, input.deltaY);\n\n var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);\n input.overallVelocityX = overallVelocity.x;\n input.overallVelocityY = overallVelocity.y;\n input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y;\n\n input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;\n input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;\n\n input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length >\n session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers);\n\n computeIntervalInputData(session, input);\n\n // find the correct target\n var target = manager.element;\n if (hasParent(input.srcEvent.target, target)) {\n target = input.srcEvent.target;\n }\n input.target = target;\n}\n\nfunction computeDeltaXY(session, input) {\n var center = input.center;\n var offset = session.offsetDelta || {};\n var prevDelta = session.prevDelta || {};\n var prevInput = session.prevInput || {};\n\n if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {\n prevDelta = session.prevDelta = {\n x: prevInput.deltaX || 0,\n y: prevInput.deltaY || 0\n };\n\n offset = session.offsetDelta = {\n x: center.x,\n y: center.y\n };\n }\n\n input.deltaX = prevDelta.x + (center.x - offset.x);\n input.deltaY = prevDelta.y + (center.y - offset.y);\n}\n\n/**\n * velocity is calculated every x ms\n * @param {Object} session\n * @param {Object} input\n */\nfunction computeIntervalInputData(session, input) {\n var last = session.lastInterval || input,\n deltaTime = input.timeStamp - last.timeStamp,\n velocity, velocityX, velocityY, direction;\n\n if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {\n var deltaX = input.deltaX - last.deltaX;\n var deltaY = input.deltaY - last.deltaY;\n\n var v = getVelocity(deltaTime, deltaX, deltaY);\n velocityX = v.x;\n velocityY = v.y;\n velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y;\n direction = getDirection(deltaX, deltaY);\n\n session.lastInterval = input;\n } else {\n // use latest velocity info if it doesn't overtake a minimum period\n velocity = last.velocity;\n velocityX = last.velocityX;\n velocityY = last.velocityY;\n direction = last.direction;\n }\n\n input.velocity = velocity;\n input.velocityX = velocityX;\n input.velocityY = velocityY;\n input.direction = direction;\n}\n\n/**\n * create a simple clone from the input used for storage of firstInput and firstMultiple\n * @param {Object} input\n * @returns {Object} clonedInputData\n */\nfunction simpleCloneInputData(input) {\n // make a simple copy of the pointers because we will get a reference if we don't\n // we only need clientXY for the calculations\n var pointers = [];\n var i = 0;\n while (i < input.pointers.length) {\n pointers[i] = {\n clientX: round(input.pointers[i].clientX),\n clientY: round(input.pointers[i].clientY)\n };\n i++;\n }\n\n return {\n timeStamp: now(),\n pointers: pointers,\n center: getCenter(pointers),\n deltaX: input.deltaX,\n deltaY: input.deltaY\n };\n}\n\n/**\n * get the center of all the pointers\n * @param {Array} pointers\n * @return {Object} center contains `x` and `y` properties\n */\nfunction getCenter(pointers) {\n var pointersLength = pointers.length;\n\n // no need to loop when only one touch\n if (pointersLength === 1) {\n return {\n x: round(pointers[0].clientX),\n y: round(pointers[0].clientY)\n };\n }\n\n var x = 0, y = 0, i = 0;\n while (i < pointersLength) {\n x += pointers[i].clientX;\n y += pointers[i].clientY;\n i++;\n }\n\n return {\n x: round(x / pointersLength),\n y: round(y / pointersLength)\n };\n}\n\n/**\n * calculate the velocity between two points. unit is in px per ms.\n * @param {Number} deltaTime\n * @param {Number} x\n * @param {Number} y\n * @return {Object} velocity `x` and `y`\n */\nfunction getVelocity(deltaTime, x, y) {\n return {\n x: x / deltaTime || 0,\n y: y / deltaTime || 0\n };\n}\n\n/**\n * get the direction between two points\n * @param {Number} x\n * @param {Number} y\n * @return {Number} direction\n */\nfunction getDirection(x, y) {\n if (x === y) {\n return DIRECTION_NONE;\n }\n\n if (abs(x) >= abs(y)) {\n return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;\n }\n return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;\n}\n\n/**\n * calculate the absolute distance between two points\n * @param {Object} p1 {x, y}\n * @param {Object} p2 {x, y}\n * @param {Array} [props] containing x and y keys\n * @return {Number} distance\n */\nfunction getDistance(p1, p2, props) {\n if (!props) {\n props = PROPS_XY;\n }\n var x = p2[props[0]] - p1[props[0]],\n y = p2[props[1]] - p1[props[1]];\n\n return Math.sqrt((x * x) + (y * y));\n}\n\n/**\n * calculate the angle between two coordinates\n * @param {Object} p1\n * @param {Object} p2\n * @param {Array} [props] containing x and y keys\n * @return {Number} angle\n */\nfunction getAngle(p1, p2, props) {\n if (!props) {\n props = PROPS_XY;\n }\n var x = p2[props[0]] - p1[props[0]],\n y = p2[props[1]] - p1[props[1]];\n return Math.atan2(y, x) * 180 / Math.PI;\n}\n\n/**\n * calculate the rotation degrees between two pointersets\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} rotation\n */\nfunction getRotation(start, end) {\n return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);\n}\n\n/**\n * calculate the scale factor between two pointersets\n * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} scale\n */\nfunction getScale(start, end) {\n return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);\n}\n\nvar MOUSE_INPUT_MAP = {\n mousedown: INPUT_START,\n mousemove: INPUT_MOVE,\n mouseup: INPUT_END\n};\n\nvar MOUSE_ELEMENT_EVENTS = 'mousedown';\nvar MOUSE_WINDOW_EVENTS = 'mousemove mouseup';\n\n/**\n * Mouse events input\n * @constructor\n * @extends Input\n */\nfunction MouseInput() {\n this.evEl = MOUSE_ELEMENT_EVENTS;\n this.evWin = MOUSE_WINDOW_EVENTS;\n\n this.pressed = false; // mousedown state\n\n Input.apply(this, arguments);\n}\n\ninherit(MouseInput, Input, {\n /**\n * handle mouse events\n * @param {Object} ev\n */\n handler: function MEhandler(ev) {\n var eventType = MOUSE_INPUT_MAP[ev.type];\n\n // on start we want to have the left mouse button down\n if (eventType & INPUT_START && ev.button === 0) {\n this.pressed = true;\n }\n\n if (eventType & INPUT_MOVE && ev.which !== 1) {\n eventType = INPUT_END;\n }\n\n // mouse must be down\n if (!this.pressed) {\n return;\n }\n\n if (eventType & INPUT_END) {\n this.pressed = false;\n }\n\n this.callback(this.manager, eventType, {\n pointers: [ev],\n changedPointers: [ev],\n pointerType: INPUT_TYPE_MOUSE,\n srcEvent: ev\n });\n }\n});\n\nvar POINTER_INPUT_MAP = {\n pointerdown: INPUT_START,\n pointermove: INPUT_MOVE,\n pointerup: INPUT_END,\n pointercancel: INPUT_CANCEL,\n pointerout: INPUT_CANCEL\n};\n\n// in IE10 the pointer types is defined as an enum\nvar IE10_POINTER_TYPE_ENUM = {\n 2: INPUT_TYPE_TOUCH,\n 3: INPUT_TYPE_PEN,\n 4: INPUT_TYPE_MOUSE,\n 5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816\n};\n\nvar POINTER_ELEMENT_EVENTS = 'pointerdown';\nvar POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';\n\n// IE10 has prefixed support, and case-sensitive\nif (window.MSPointerEvent && !window.PointerEvent) {\n POINTER_ELEMENT_EVENTS = 'MSPointerDown';\n POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';\n}\n\n/**\n * Pointer events input\n * @constructor\n * @extends Input\n */\nfunction PointerEventInput() {\n this.evEl = POINTER_ELEMENT_EVENTS;\n this.evWin = POINTER_WINDOW_EVENTS;\n\n Input.apply(this, arguments);\n\n this.store = (this.manager.session.pointerEvents = []);\n}\n\ninherit(PointerEventInput, Input, {\n /**\n * handle mouse events\n * @param {Object} ev\n */\n handler: function PEhandler(ev) {\n var store = this.store;\n var removePointer = false;\n\n var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');\n var eventType = POINTER_INPUT_MAP[eventTypeNormalized];\n var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;\n\n var isTouch = (pointerType == INPUT_TYPE_TOUCH);\n\n // get index of the event in the store\n var storeIndex = inArray(store, ev.pointerId, 'pointerId');\n\n // start and mouse must be down\n if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {\n if (storeIndex < 0) {\n store.push(ev);\n storeIndex = store.length - 1;\n }\n } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n removePointer = true;\n }\n\n // it not found, so the pointer hasn't been down (so it's probably a hover)\n if (storeIndex < 0) {\n return;\n }\n\n // update the event in the store\n store[storeIndex] = ev;\n\n this.callback(this.manager, eventType, {\n pointers: store,\n changedPointers: [ev],\n pointerType: pointerType,\n srcEvent: ev\n });\n\n if (removePointer) {\n // remove from the store\n store.splice(storeIndex, 1);\n }\n }\n});\n\nvar SINGLE_TOUCH_INPUT_MAP = {\n touchstart: INPUT_START,\n touchmove: INPUT_MOVE,\n touchend: INPUT_END,\n touchcancel: INPUT_CANCEL\n};\n\nvar SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';\nvar SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Touch events input\n * @constructor\n * @extends Input\n */\nfunction SingleTouchInput() {\n this.evTarget = SINGLE_TOUCH_TARGET_EVENTS;\n this.evWin = SINGLE_TOUCH_WINDOW_EVENTS;\n this.started = false;\n\n Input.apply(this, arguments);\n}\n\ninherit(SingleTouchInput, Input, {\n handler: function TEhandler(ev) {\n var type = SINGLE_TOUCH_INPUT_MAP[ev.type];\n\n // should we handle the touch events?\n if (type === INPUT_START) {\n this.started = true;\n }\n\n if (!this.started) {\n return;\n }\n\n var touches = normalizeSingleTouches.call(this, ev, type);\n\n // when done, reset the started state\n if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {\n this.started = false;\n }\n\n this.callback(this.manager, type, {\n pointers: touches[0],\n changedPointers: touches[1],\n pointerType: INPUT_TYPE_TOUCH,\n srcEvent: ev\n });\n }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction normalizeSingleTouches(ev, type) {\n var all = toArray(ev.touches);\n var changed = toArray(ev.changedTouches);\n\n if (type & (INPUT_END | INPUT_CANCEL)) {\n all = uniqueArray(all.concat(changed), 'identifier', true);\n }\n\n return [all, changed];\n}\n\nvar TOUCH_INPUT_MAP = {\n touchstart: INPUT_START,\n touchmove: INPUT_MOVE,\n touchend: INPUT_END,\n touchcancel: INPUT_CANCEL\n};\n\nvar TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Multi-user touch events input\n * @constructor\n * @extends Input\n */\nfunction TouchInput() {\n this.evTarget = TOUCH_TARGET_EVENTS;\n this.targetIds = {};\n\n Input.apply(this, arguments);\n}\n\ninherit(TouchInput, Input, {\n handler: function MTEhandler(ev) {\n var type = TOUCH_INPUT_MAP[ev.type];\n var touches = getTouches.call(this, ev, type);\n if (!touches) {\n return;\n }\n\n this.callback(this.manager, type, {\n pointers: touches[0],\n changedPointers: touches[1],\n pointerType: INPUT_TYPE_TOUCH,\n srcEvent: ev\n });\n }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction getTouches(ev, type) {\n var allTouches = toArray(ev.touches);\n var targetIds = this.targetIds;\n\n // when there is only one touch, the process can be simplified\n if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {\n targetIds[allTouches[0].identifier] = true;\n return [allTouches, allTouches];\n }\n\n var i,\n targetTouches,\n changedTouches = toArray(ev.changedTouches),\n changedTargetTouches = [],\n target = this.target;\n\n // get target touches from touches\n targetTouches = allTouches.filter(function(touch) {\n return hasParent(touch.target, target);\n });\n\n // collect touches\n if (type === INPUT_START) {\n i = 0;\n while (i < targetTouches.length) {\n targetIds[targetTouches[i].identifier] = true;\n i++;\n }\n }\n\n // filter changed touches to only contain touches that exist in the collected target ids\n i = 0;\n while (i < changedTouches.length) {\n if (targetIds[changedTouches[i].identifier]) {\n changedTargetTouches.push(changedTouches[i]);\n }\n\n // cleanup removed touches\n if (type & (INPUT_END | INPUT_CANCEL)) {\n delete targetIds[changedTouches[i].identifier];\n }\n i++;\n }\n\n if (!changedTargetTouches.length) {\n return;\n }\n\n return [\n // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'\n uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true),\n changedTargetTouches\n ];\n}\n\n/**\n * Combined touch and mouse input\n *\n * Touch has a higher priority then mouse, and while touching no mouse events are allowed.\n * This because touch devices also emit mouse events while doing a touch.\n *\n * @constructor\n * @extends Input\n */\n\nvar DEDUP_TIMEOUT = 2500;\nvar DEDUP_DISTANCE = 25;\n\nfunction TouchMouseInput() {\n Input.apply(this, arguments);\n\n var handler = bindFn(this.handler, this);\n this.touch = new TouchInput(this.manager, handler);\n this.mouse = new MouseInput(this.manager, handler);\n\n this.primaryTouch = null;\n this.lastTouches = [];\n}\n\ninherit(TouchMouseInput, Input, {\n /**\n * handle mouse and touch events\n * @param {Hammer} manager\n * @param {String} inputEvent\n * @param {Object} inputData\n */\n handler: function TMEhandler(manager, inputEvent, inputData) {\n var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH),\n isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE);\n\n if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {\n return;\n }\n\n // when we're in a touch event, record touches to de-dupe synthetic mouse event\n if (isTouch) {\n recordTouches.call(this, inputEvent, inputData);\n } else if (isMouse && isSyntheticEvent.call(this, inputData)) {\n return;\n }\n\n this.callback(manager, inputEvent, inputData);\n },\n\n /**\n * remove the event listeners\n */\n destroy: function destroy() {\n this.touch.destroy();\n this.mouse.destroy();\n }\n});\n\nfunction recordTouches(eventType, eventData) {\n if (eventType & INPUT_START) {\n this.primaryTouch = eventData.changedPointers[0].identifier;\n setLastTouch.call(this, eventData);\n } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n setLastTouch.call(this, eventData);\n }\n}\n\nfunction setLastTouch(eventData) {\n var touch = eventData.changedPointers[0];\n\n if (touch.identifier === this.primaryTouch) {\n var lastTouch = {x: touch.clientX, y: touch.clientY};\n this.lastTouches.push(lastTouch);\n var lts = this.lastTouches;\n var removeLastTouch = function() {\n var i = lts.indexOf(lastTouch);\n if (i > -1) {\n lts.splice(i, 1);\n }\n };\n setTimeout(removeLastTouch, DEDUP_TIMEOUT);\n }\n}\n\nfunction isSyntheticEvent(eventData) {\n var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY;\n for (var i = 0; i < this.lastTouches.length; i++) {\n var t = this.lastTouches[i];\n var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);\n if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {\n return true;\n }\n }\n return false;\n}\n\nvar PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');\nvar NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;\n\n// magical touchAction value\nvar TOUCH_ACTION_COMPUTE = 'compute';\nvar TOUCH_ACTION_AUTO = 'auto';\nvar TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented\nvar TOUCH_ACTION_NONE = 'none';\nvar TOUCH_ACTION_PAN_X = 'pan-x';\nvar TOUCH_ACTION_PAN_Y = 'pan-y';\nvar TOUCH_ACTION_MAP = getTouchActionProps();\n\n/**\n * Touch Action\n * sets the touchAction property or uses the js alternative\n * @param {Manager} manager\n * @param {String} value\n * @constructor\n */\nfunction TouchAction(manager, value) {\n this.manager = manager;\n this.set(value);\n}\n\nTouchAction.prototype = {\n /**\n * set the touchAction value on the element or enable the polyfill\n * @param {String} value\n */\n set: function(value) {\n // find out the touch-action by the event handlers\n if (value == TOUCH_ACTION_COMPUTE) {\n value = this.compute();\n }\n\n if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {\n this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;\n }\n this.actions = value.toLowerCase().trim();\n },\n\n /**\n * just re-set the touchAction value\n */\n update: function() {\n this.set(this.manager.options.touchAction);\n },\n\n /**\n * compute the value for the touchAction property based on the recognizer's settings\n * @returns {String} value\n */\n compute: function() {\n var actions = [];\n each(this.manager.recognizers, function(recognizer) {\n if (boolOrFn(recognizer.options.enable, [recognizer])) {\n actions = actions.concat(recognizer.getTouchAction());\n }\n });\n return cleanTouchActions(actions.join(' '));\n },\n\n /**\n * this method is called on each input cycle and provides the preventing of the browser behavior\n * @param {Object} input\n */\n preventDefaults: function(input) {\n var srcEvent = input.srcEvent;\n var direction = input.offsetDirection;\n\n // if the touch action did prevented once this session\n if (this.manager.session.prevented) {\n srcEvent.preventDefault();\n return;\n }\n\n var actions = this.actions;\n var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];\n var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];\n var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];\n\n if (hasNone) {\n //do not prevent defaults if this is a tap gesture\n\n var isTapPointer = input.pointers.length === 1;\n var isTapMovement = input.distance < 2;\n var isTapTouchTime = input.deltaTime < 250;\n\n if (isTapPointer && isTapMovement && isTapTouchTime) {\n return;\n }\n }\n\n if (hasPanX && hasPanY) {\n // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent\n return;\n }\n\n if (hasNone ||\n (hasPanY && direction & DIRECTION_HORIZONTAL) ||\n (hasPanX && direction & DIRECTION_VERTICAL)) {\n return this.preventSrc(srcEvent);\n }\n },\n\n /**\n * call preventDefault to prevent the browser's default behavior (scrolling in most cases)\n * @param {Object} srcEvent\n */\n preventSrc: function(srcEvent) {\n this.manager.session.prevented = true;\n srcEvent.preventDefault();\n }\n};\n\n/**\n * when the touchActions are collected they are not a valid value, so we need to clean things up. *\n * @param {String} actions\n * @returns {*}\n */\nfunction cleanTouchActions(actions) {\n // none\n if (inStr(actions, TOUCH_ACTION_NONE)) {\n return TOUCH_ACTION_NONE;\n }\n\n var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);\n var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y);\n\n // if both pan-x and pan-y are set (different recognizers\n // for different directions, e.g. horizontal pan but vertical swipe?)\n // we need none (as otherwise with pan-x pan-y combined none of these\n // recognizers will work, since the browser would handle all panning\n if (hasPanX && hasPanY) {\n return TOUCH_ACTION_NONE;\n }\n\n // pan-x OR pan-y\n if (hasPanX || hasPanY) {\n return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;\n }\n\n // manipulation\n if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {\n return TOUCH_ACTION_MANIPULATION;\n }\n\n return TOUCH_ACTION_AUTO;\n}\n\nfunction getTouchActionProps() {\n if (!NATIVE_TOUCH_ACTION) {\n return false;\n }\n var touchMap = {};\n var cssSupports = window.CSS && window.CSS.supports;\n ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) {\n\n // If css.supports is not supported but there is native touch-action assume it supports\n // all values. This is the case for IE 10 and 11.\n touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true;\n });\n return touchMap;\n}\n\n/**\n * Recognizer flow explained; *\n * All recognizers have the initial state of POSSIBLE when a input session starts.\n * The definition of a input session is from the first input until the last input, with all it's movement in it. *\n * Example session for mouse-input: mousedown -> mousemove -> mouseup\n *\n * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed\n * which determines with state it should be.\n *\n * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to\n * POSSIBLE to give it another change on the next cycle.\n *\n * Possible\n * |\n * +-----+---------------+\n * | |\n * +-----+-----+ |\n * | | |\n * Failed Cancelled |\n * +-------+------+\n * | |\n * Recognized Began\n * |\n * Changed\n * |\n * Ended/Recognized\n */\nvar STATE_POSSIBLE = 1;\nvar STATE_BEGAN = 2;\nvar STATE_CHANGED = 4;\nvar STATE_ENDED = 8;\nvar STATE_RECOGNIZED = STATE_ENDED;\nvar STATE_CANCELLED = 16;\nvar STATE_FAILED = 32;\n\n/**\n * Recognizer\n * Every recognizer needs to extend from this class.\n * @constructor\n * @param {Object} options\n */\nfunction Recognizer(options) {\n this.options = assign({}, this.defaults, options || {});\n\n this.id = uniqueId();\n\n this.manager = null;\n\n // default is enable true\n this.options.enable = ifUndefined(this.options.enable, true);\n\n this.state = STATE_POSSIBLE;\n\n this.simultaneous = {};\n this.requireFail = [];\n}\n\nRecognizer.prototype = {\n /**\n * @virtual\n * @type {Object}\n */\n defaults: {},\n\n /**\n * set options\n * @param {Object} options\n * @return {Recognizer}\n */\n set: function(options) {\n assign(this.options, options);\n\n // also update the touchAction, in case something changed about the directions/enabled state\n this.manager && this.manager.touchAction.update();\n return this;\n },\n\n /**\n * recognize simultaneous with an other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n recognizeWith: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {\n return this;\n }\n\n var simultaneous = this.simultaneous;\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n if (!simultaneous[otherRecognizer.id]) {\n simultaneous[otherRecognizer.id] = otherRecognizer;\n otherRecognizer.recognizeWith(this);\n }\n return this;\n },\n\n /**\n * drop the simultaneous link. it doesnt remove the link on the other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n dropRecognizeWith: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {\n return this;\n }\n\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n delete this.simultaneous[otherRecognizer.id];\n return this;\n },\n\n /**\n * recognizer can only run when an other is failing\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n requireFailure: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {\n return this;\n }\n\n var requireFail = this.requireFail;\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n if (inArray(requireFail, otherRecognizer) === -1) {\n requireFail.push(otherRecognizer);\n otherRecognizer.requireFailure(this);\n }\n return this;\n },\n\n /**\n * drop the requireFailure link. it does not remove the link on the other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n dropRequireFailure: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {\n return this;\n }\n\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n var index = inArray(this.requireFail, otherRecognizer);\n if (index > -1) {\n this.requireFail.splice(index, 1);\n }\n return this;\n },\n\n /**\n * has require failures boolean\n * @returns {boolean}\n */\n hasRequireFailures: function() {\n return this.requireFail.length > 0;\n },\n\n /**\n * if the recognizer can recognize simultaneous with an other recognizer\n * @param {Recognizer} otherRecognizer\n * @returns {Boolean}\n */\n canRecognizeWith: function(otherRecognizer) {\n return !!this.simultaneous[otherRecognizer.id];\n },\n\n /**\n * You should use `tryEmit` instead of `emit` directly to check\n * that all the needed recognizers has failed before emitting.\n * @param {Object} input\n */\n emit: function(input) {\n var self = this;\n var state = this.state;\n\n function emit(event) {\n self.manager.emit(event, input);\n }\n\n // 'panstart' and 'panmove'\n if (state < STATE_ENDED) {\n emit(self.options.event + stateStr(state));\n }\n\n emit(self.options.event); // simple 'eventName' events\n\n if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...)\n emit(input.additionalEvent);\n }\n\n // panend and pancancel\n if (state >= STATE_ENDED) {\n emit(self.options.event + stateStr(state));\n }\n },\n\n /**\n * Check that all the require failure recognizers has failed,\n * if true, it emits a gesture event,\n * otherwise, setup the state to FAILED.\n * @param {Object} input\n */\n tryEmit: function(input) {\n if (this.canEmit()) {\n return this.emit(input);\n }\n // it's failing anyway\n this.state = STATE_FAILED;\n },\n\n /**\n * can we emit?\n * @returns {boolean}\n */\n canEmit: function() {\n var i = 0;\n while (i < this.requireFail.length) {\n if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {\n return false;\n }\n i++;\n }\n return true;\n },\n\n /**\n * update the recognizer\n * @param {Object} inputData\n */\n recognize: function(inputData) {\n // make a new copy of the inputData\n // so we can change the inputData without messing up the other recognizers\n var inputDataClone = assign({}, inputData);\n\n // is is enabled and allow recognizing?\n if (!boolOrFn(this.options.enable, [this, inputDataClone])) {\n this.reset();\n this.state = STATE_FAILED;\n return;\n }\n\n // reset when we've reached the end\n if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {\n this.state = STATE_POSSIBLE;\n }\n\n this.state = this.process(inputDataClone);\n\n // the recognizer has recognized a gesture\n // so trigger an event\n if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {\n this.tryEmit(inputDataClone);\n }\n },\n\n /**\n * return the state of the recognizer\n * the actual recognizing happens in this method\n * @virtual\n * @param {Object} inputData\n * @returns {Const} STATE\n */\n process: function(inputData) { }, // jshint ignore:line\n\n /**\n * return the preferred touch-action\n * @virtual\n * @returns {Array}\n */\n getTouchAction: function() { },\n\n /**\n * called when the gesture isn't allowed to recognize\n * like when another is being recognized or it is disabled\n * @virtual\n */\n reset: function() { }\n};\n\n/**\n * get a usable string, used as event postfix\n * @param {Const} state\n * @returns {String} state\n */\nfunction stateStr(state) {\n if (state & STATE_CANCELLED) {\n return 'cancel';\n } else if (state & STATE_ENDED) {\n return 'end';\n } else if (state & STATE_CHANGED) {\n return 'move';\n } else if (state & STATE_BEGAN) {\n return 'start';\n }\n return '';\n}\n\n/**\n * direction cons to string\n * @param {Const} direction\n * @returns {String}\n */\nfunction directionStr(direction) {\n if (direction == DIRECTION_DOWN) {\n return 'down';\n } else if (direction == DIRECTION_UP) {\n return 'up';\n } else if (direction == DIRECTION_LEFT) {\n return 'left';\n } else if (direction == DIRECTION_RIGHT) {\n return 'right';\n }\n return '';\n}\n\n/**\n * get a recognizer by name if it is bound to a manager\n * @param {Recognizer|String} otherRecognizer\n * @param {Recognizer} recognizer\n * @returns {Recognizer}\n */\nfunction getRecognizerByNameIfManager(otherRecognizer, recognizer) {\n var manager = recognizer.manager;\n if (manager) {\n return manager.get(otherRecognizer);\n }\n return otherRecognizer;\n}\n\n/**\n * This recognizer is just used as a base for the simple attribute recognizers.\n * @constructor\n * @extends Recognizer\n */\nfunction AttrRecognizer() {\n Recognizer.apply(this, arguments);\n}\n\ninherit(AttrRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof AttrRecognizer\n */\n defaults: {\n /**\n * @type {Number}\n * @default 1\n */\n pointers: 1\n },\n\n /**\n * Used to check if it the recognizer receives valid input, like input.distance > 10.\n * @memberof AttrRecognizer\n * @param {Object} input\n * @returns {Boolean} recognized\n */\n attrTest: function(input) {\n var optionPointers = this.options.pointers;\n return optionPointers === 0 || input.pointers.length === optionPointers;\n },\n\n /**\n * Process the input and return the state for the recognizer\n * @memberof AttrRecognizer\n * @param {Object} input\n * @returns {*} State\n */\n process: function(input) {\n var state = this.state;\n var eventType = input.eventType;\n\n var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);\n var isValid = this.attrTest(input);\n\n // on cancel input and we've recognized before, return STATE_CANCELLED\n if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {\n return state | STATE_CANCELLED;\n } else if (isRecognized || isValid) {\n if (eventType & INPUT_END) {\n return state | STATE_ENDED;\n } else if (!(state & STATE_BEGAN)) {\n return STATE_BEGAN;\n }\n return state | STATE_CHANGED;\n }\n return STATE_FAILED;\n }\n});\n\n/**\n * Pan\n * Recognized when the pointer is down and moved in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PanRecognizer() {\n AttrRecognizer.apply(this, arguments);\n\n this.pX = null;\n this.pY = null;\n}\n\ninherit(PanRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof PanRecognizer\n */\n defaults: {\n event: 'pan',\n threshold: 10,\n pointers: 1,\n direction: DIRECTION_ALL\n },\n\n getTouchAction: function() {\n var direction = this.options.direction;\n var actions = [];\n if (direction & DIRECTION_HORIZONTAL) {\n actions.push(TOUCH_ACTION_PAN_Y);\n }\n if (direction & DIRECTION_VERTICAL) {\n actions.push(TOUCH_ACTION_PAN_X);\n }\n return actions;\n },\n\n directionTest: function(input) {\n var options = this.options;\n var hasMoved = true;\n var distance = input.distance;\n var direction = input.direction;\n var x = input.deltaX;\n var y = input.deltaY;\n\n // lock to axis?\n if (!(direction & options.direction)) {\n if (options.direction & DIRECTION_HORIZONTAL) {\n direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;\n hasMoved = x != this.pX;\n distance = Math.abs(input.deltaX);\n } else {\n direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN;\n hasMoved = y != this.pY;\n distance = Math.abs(input.deltaY);\n }\n }\n input.direction = direction;\n return hasMoved && distance > options.threshold && direction & options.direction;\n },\n\n attrTest: function(input) {\n return AttrRecognizer.prototype.attrTest.call(this, input) &&\n (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input)));\n },\n\n emit: function(input) {\n\n this.pX = input.deltaX;\n this.pY = input.deltaY;\n\n var direction = directionStr(input.direction);\n\n if (direction) {\n input.additionalEvent = this.options.event + direction;\n }\n this._super.emit.call(this, input);\n }\n});\n\n/**\n * Pinch\n * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PinchRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(PinchRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof PinchRecognizer\n */\n defaults: {\n event: 'pinch',\n threshold: 0,\n pointers: 2\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_NONE];\n },\n\n attrTest: function(input) {\n return this._super.attrTest.call(this, input) &&\n (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);\n },\n\n emit: function(input) {\n if (input.scale !== 1) {\n var inOut = input.scale < 1 ? 'in' : 'out';\n input.additionalEvent = this.options.event + inOut;\n }\n this._super.emit.call(this, input);\n }\n});\n\n/**\n * Press\n * Recognized when the pointer is down for x ms without any movement.\n * @constructor\n * @extends Recognizer\n */\nfunction PressRecognizer() {\n Recognizer.apply(this, arguments);\n\n this._timer = null;\n this._input = null;\n}\n\ninherit(PressRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof PressRecognizer\n */\n defaults: {\n event: 'press',\n pointers: 1,\n time: 251, // minimal time of the pointer to be pressed\n threshold: 9 // a minimal movement is ok, but keep it low\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_AUTO];\n },\n\n process: function(input) {\n var options = this.options;\n var validPointers = input.pointers.length === options.pointers;\n var validMovement = input.distance < options.threshold;\n var validTime = input.deltaTime > options.time;\n\n this._input = input;\n\n // we only allow little movement\n // and we've reached an end event, so a tap is possible\n if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) {\n this.reset();\n } else if (input.eventType & INPUT_START) {\n this.reset();\n this._timer = setTimeoutContext(function() {\n this.state = STATE_RECOGNIZED;\n this.tryEmit();\n }, options.time, this);\n } else if (input.eventType & INPUT_END) {\n return STATE_RECOGNIZED;\n }\n return STATE_FAILED;\n },\n\n reset: function() {\n clearTimeout(this._timer);\n },\n\n emit: function(input) {\n if (this.state !== STATE_RECOGNIZED) {\n return;\n }\n\n if (input && (input.eventType & INPUT_END)) {\n this.manager.emit(this.options.event + 'up', input);\n } else {\n this._input.timeStamp = now();\n this.manager.emit(this.options.event, this._input);\n }\n }\n});\n\n/**\n * Rotate\n * Recognized when two or more pointer are moving in a circular motion.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction RotateRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(RotateRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof RotateRecognizer\n */\n defaults: {\n event: 'rotate',\n threshold: 0,\n pointers: 2\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_NONE];\n },\n\n attrTest: function(input) {\n return this._super.attrTest.call(this, input) &&\n (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);\n }\n});\n\n/**\n * Swipe\n * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction SwipeRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(SwipeRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof SwipeRecognizer\n */\n defaults: {\n event: 'swipe',\n threshold: 10,\n velocity: 0.3,\n direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,\n pointers: 1\n },\n\n getTouchAction: function() {\n return PanRecognizer.prototype.getTouchAction.call(this);\n },\n\n attrTest: function(input) {\n var direction = this.options.direction;\n var velocity;\n\n if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {\n velocity = input.overallVelocity;\n } else if (direction & DIRECTION_HORIZONTAL) {\n velocity = input.overallVelocityX;\n } else if (direction & DIRECTION_VERTICAL) {\n velocity = input.overallVelocityY;\n }\n\n return this._super.attrTest.call(this, input) &&\n direction & input.offsetDirection &&\n input.distance > this.options.threshold &&\n input.maxPointers == this.options.pointers &&\n abs(velocity) > this.options.velocity && input.eventType & INPUT_END;\n },\n\n emit: function(input) {\n var direction = directionStr(input.offsetDirection);\n if (direction) {\n this.manager.emit(this.options.event + direction, input);\n }\n\n this.manager.emit(this.options.event, input);\n }\n});\n\n/**\n * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur\n * between the given interval and position. The delay option can be used to recognize multi-taps without firing\n * a single tap.\n *\n * The eventData from the emitted event contains the property `tapCount`, which contains the amount of\n * multi-taps being recognized.\n * @constructor\n * @extends Recognizer\n */\nfunction TapRecognizer() {\n Recognizer.apply(this, arguments);\n\n // previous time and center,\n // used for tap counting\n this.pTime = false;\n this.pCenter = false;\n\n this._timer = null;\n this._input = null;\n this.count = 0;\n}\n\ninherit(TapRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof PinchRecognizer\n */\n defaults: {\n event: 'tap',\n pointers: 1,\n taps: 1,\n interval: 300, // max time between the multi-tap taps\n time: 250, // max time of the pointer to be down (like finger on the screen)\n threshold: 9, // a minimal movement is ok, but keep it low\n posThreshold: 10 // a multi-tap can be a bit off the initial position\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_MANIPULATION];\n },\n\n process: function(input) {\n var options = this.options;\n\n var validPointers = input.pointers.length === options.pointers;\n var validMovement = input.distance < options.threshold;\n var validTouchTime = input.deltaTime < options.time;\n\n this.reset();\n\n if ((input.eventType & INPUT_START) && (this.count === 0)) {\n return this.failTimeout();\n }\n\n // we only allow little movement\n // and we've reached an end event, so a tap is possible\n if (validMovement && validTouchTime && validPointers) {\n if (input.eventType != INPUT_END) {\n return this.failTimeout();\n }\n\n var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true;\n var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;\n\n this.pTime = input.timeStamp;\n this.pCenter = input.center;\n\n if (!validMultiTap || !validInterval) {\n this.count = 1;\n } else {\n this.count += 1;\n }\n\n this._input = input;\n\n // if tap count matches we have recognized it,\n // else it has began recognizing...\n var tapCount = this.count % options.taps;\n if (tapCount === 0) {\n // no failing requirements, immediately trigger the tap event\n // or wait as long as the multitap interval to trigger\n if (!this.hasRequireFailures()) {\n return STATE_RECOGNIZED;\n } else {\n this._timer = setTimeoutContext(function() {\n this.state = STATE_RECOGNIZED;\n this.tryEmit();\n }, options.interval, this);\n return STATE_BEGAN;\n }\n }\n }\n return STATE_FAILED;\n },\n\n failTimeout: function() {\n this._timer = setTimeoutContext(function() {\n this.state = STATE_FAILED;\n }, this.options.interval, this);\n return STATE_FAILED;\n },\n\n reset: function() {\n clearTimeout(this._timer);\n },\n\n emit: function() {\n if (this.state == STATE_RECOGNIZED) {\n this._input.tapCount = this.count;\n this.manager.emit(this.options.event, this._input);\n }\n }\n});\n\n/**\n * Simple way to create a manager with a default set of recognizers.\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Hammer(element, options) {\n options = options || {};\n options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset);\n return new Manager(element, options);\n}\n\n/**\n * @const {string}\n */\nHammer.VERSION = '2.0.7';\n\n/**\n * default settings\n * @namespace\n */\nHammer.defaults = {\n /**\n * set if DOM events are being triggered.\n * But this is slower and unused by simple implementations, so disabled by default.\n * @type {Boolean}\n * @default false\n */\n domEvents: false,\n\n /**\n * The value for the touchAction property/fallback.\n * When set to `compute` it will magically set the correct value based on the added recognizers.\n * @type {String}\n * @default compute\n */\n touchAction: TOUCH_ACTION_COMPUTE,\n\n /**\n * @type {Boolean}\n * @default true\n */\n enable: true,\n\n /**\n * EXPERIMENTAL FEATURE -- can be removed/changed\n * Change the parent input target element.\n * If Null, then it is being set the to main element.\n * @type {Null|EventTarget}\n * @default null\n */\n inputTarget: null,\n\n /**\n * force an input class\n * @type {Null|Function}\n * @default null\n */\n inputClass: null,\n\n /**\n * Default recognizer setup when calling `Hammer()`\n * When creating a new Manager these will be skipped.\n * @type {Array}\n */\n preset: [\n // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...]\n [RotateRecognizer, {enable: false}],\n [PinchRecognizer, {enable: false}, ['rotate']],\n [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}],\n [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']],\n [TapRecognizer],\n [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']],\n [PressRecognizer]\n ],\n\n /**\n * Some CSS properties can be used to improve the working of Hammer.\n * Add them to this method and they will be set when creating a new Manager.\n * @namespace\n */\n cssProps: {\n /**\n * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.\n * @type {String}\n * @default 'none'\n */\n userSelect: 'none',\n\n /**\n * Disable the Windows Phone grippers when pressing an element.\n * @type {String}\n * @default 'none'\n */\n touchSelect: 'none',\n\n /**\n * Disables the default callout shown when you touch and hold a touch target.\n * On iOS, when you touch and hold a touch target such as a link, Safari displays\n * a callout containing information about the link. This property allows you to disable that callout.\n * @type {String}\n * @default 'none'\n */\n touchCallout: 'none',\n\n /**\n * Specifies whether zooming is enabled. Used by IE10>\n * @type {String}\n * @default 'none'\n */\n contentZooming: 'none',\n\n /**\n * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.\n * @type {String}\n * @default 'none'\n */\n userDrag: 'none',\n\n /**\n * Overrides the highlight color shown when the user taps a link or a JavaScript\n * clickable element in iOS. This property obeys the alpha value, if specified.\n * @type {String}\n * @default 'rgba(0,0,0,0)'\n */\n tapHighlightColor: 'rgba(0,0,0,0)'\n }\n};\n\nvar STOP = 1;\nvar FORCED_STOP = 2;\n\n/**\n * Manager\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Manager(element, options) {\n this.options = assign({}, Hammer.defaults, options || {});\n\n this.options.inputTarget = this.options.inputTarget || element;\n\n this.handlers = {};\n this.session = {};\n this.recognizers = [];\n this.oldCssProps = {};\n\n this.element = element;\n this.input = createInputInstance(this);\n this.touchAction = new TouchAction(this, this.options.touchAction);\n\n toggleCssProps(this, true);\n\n each(this.options.recognizers, function(item) {\n var recognizer = this.add(new (item[0])(item[1]));\n item[2] && recognizer.recognizeWith(item[2]);\n item[3] && recognizer.requireFailure(item[3]);\n }, this);\n}\n\nManager.prototype = {\n /**\n * set options\n * @param {Object} options\n * @returns {Manager}\n */\n set: function(options) {\n assign(this.options, options);\n\n // Options that need a little more setup\n if (options.touchAction) {\n this.touchAction.update();\n }\n if (options.inputTarget) {\n // Clean up existing event listeners and reinitialize\n this.input.destroy();\n this.input.target = options.inputTarget;\n this.input.init();\n }\n return this;\n },\n\n /**\n * stop recognizing for this session.\n * This session will be discarded, when a new [input]start event is fired.\n * When forced, the recognizer cycle is stopped immediately.\n * @param {Boolean} [force]\n */\n stop: function(force) {\n this.session.stopped = force ? FORCED_STOP : STOP;\n },\n\n /**\n * run the recognizers!\n * called by the inputHandler function on every movement of the pointers (touches)\n * it walks through all the recognizers and tries to detect the gesture that is being made\n * @param {Object} inputData\n */\n recognize: function(inputData) {\n var session = this.session;\n if (session.stopped) {\n return;\n }\n\n // run the touch-action polyfill\n this.touchAction.preventDefaults(inputData);\n\n var recognizer;\n var recognizers = this.recognizers;\n\n // this holds the recognizer that is being recognized.\n // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED\n // if no recognizer is detecting a thing, it is set to `null`\n var curRecognizer = session.curRecognizer;\n\n // reset when the last recognizer is recognized\n // or when we're in a new session\n if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) {\n curRecognizer = session.curRecognizer = null;\n }\n\n var i = 0;\n while (i < recognizers.length) {\n recognizer = recognizers[i];\n\n // find out if we are allowed try to recognize the input for this one.\n // 1. allow if the session is NOT forced stopped (see the .stop() method)\n // 2. allow if we still haven't recognized a gesture in this session, or the this recognizer is the one\n // that is being recognized.\n // 3. allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.\n // this can be setup with the `recognizeWith()` method on the recognizer.\n if (session.stopped !== FORCED_STOP && ( // 1\n !curRecognizer || recognizer == curRecognizer || // 2\n recognizer.canRecognizeWith(curRecognizer))) { // 3\n recognizer.recognize(inputData);\n } else {\n recognizer.reset();\n }\n\n // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the\n // current active recognizer. but only if we don't already have an active recognizer\n if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {\n curRecognizer = session.curRecognizer = recognizer;\n }\n i++;\n }\n },\n\n /**\n * get a recognizer by its event name.\n * @param {Recognizer|String} recognizer\n * @returns {Recognizer|Null}\n */\n get: function(recognizer) {\n if (recognizer instanceof Recognizer) {\n return recognizer;\n }\n\n var recognizers = this.recognizers;\n for (var i = 0; i < recognizers.length; i++) {\n if (recognizers[i].options.event == recognizer) {\n return recognizers[i];\n }\n }\n return null;\n },\n\n /**\n * add a recognizer to the manager\n * existing recognizers with the same event name will be removed\n * @param {Recognizer} recognizer\n * @returns {Recognizer|Manager}\n */\n add: function(recognizer) {\n if (invokeArrayArg(recognizer, 'add', this)) {\n return this;\n }\n\n // remove existing\n var existing = this.get(recognizer.options.event);\n if (existing) {\n this.remove(existing);\n }\n\n this.recognizers.push(recognizer);\n recognizer.manager = this;\n\n this.touchAction.update();\n return recognizer;\n },\n\n /**\n * remove a recognizer by name or instance\n * @param {Recognizer|String} recognizer\n * @returns {Manager}\n */\n remove: function(recognizer) {\n if (invokeArrayArg(recognizer, 'remove', this)) {\n return this;\n }\n\n recognizer = this.get(recognizer);\n\n // let's make sure this recognizer exists\n if (recognizer) {\n var recognizers = this.recognizers;\n var index = inArray(recognizers, recognizer);\n\n if (index !== -1) {\n recognizers.splice(index, 1);\n this.touchAction.update();\n }\n }\n\n return this;\n },\n\n /**\n * bind event\n * @param {String} events\n * @param {Function} handler\n * @returns {EventEmitter} this\n */\n on: function(events, handler) {\n if (events === undefined) {\n return;\n }\n if (handler === undefined) {\n return;\n }\n\n var handlers = this.handlers;\n each(splitStr(events), function(event) {\n handlers[event] = handlers[event] || [];\n handlers[event].push(handler);\n });\n return this;\n },\n\n /**\n * unbind event, leave emit blank to remove all handlers\n * @param {String} events\n * @param {Function} [handler]\n * @returns {EventEmitter} this\n */\n off: function(events, handler) {\n if (events === undefined) {\n return;\n }\n\n var handlers = this.handlers;\n each(splitStr(events), function(event) {\n if (!handler) {\n delete handlers[event];\n } else {\n handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);\n }\n });\n return this;\n },\n\n /**\n * emit event to the listeners\n * @param {String} event\n * @param {Object} data\n */\n emit: function(event, data) {\n // we also want to trigger dom events\n if (this.options.domEvents) {\n triggerDomEvent(event, data);\n }\n\n // no handlers, so skip it all\n var handlers = this.handlers[event] && this.handlers[event].slice();\n if (!handlers || !handlers.length) {\n return;\n }\n\n data.type = event;\n data.preventDefault = function() {\n data.srcEvent.preventDefault();\n };\n\n var i = 0;\n while (i < handlers.length) {\n handlers[i](data);\n i++;\n }\n },\n\n /**\n * destroy the manager and unbinds all events\n * it doesn't unbind dom events, that is the user own responsibility\n */\n destroy: function() {\n this.element && toggleCssProps(this, false);\n\n this.handlers = {};\n this.session = {};\n this.input.destroy();\n this.element = null;\n }\n};\n\n/**\n * add/remove the css properties as defined in manager.options.cssProps\n * @param {Manager} manager\n * @param {Boolean} add\n */\nfunction toggleCssProps(manager, add) {\n var element = manager.element;\n if (!element.style) {\n return;\n }\n var prop;\n each(manager.options.cssProps, function(value, name) {\n prop = prefixed(element.style, name);\n if (add) {\n manager.oldCssProps[prop] = element.style[prop];\n element.style[prop] = value;\n } else {\n element.style[prop] = manager.oldCssProps[prop] || '';\n }\n });\n if (!add) {\n manager.oldCssProps = {};\n }\n}\n\n/**\n * trigger dom event\n * @param {String} event\n * @param {Object} data\n */\nfunction triggerDomEvent(event, data) {\n var gestureEvent = document.createEvent('Event');\n gestureEvent.initEvent(event, true, true);\n gestureEvent.gesture = data;\n data.target.dispatchEvent(gestureEvent);\n}\n\nassign(Hammer, {\n INPUT_START: INPUT_START,\n INPUT_MOVE: INPUT_MOVE,\n INPUT_END: INPUT_END,\n INPUT_CANCEL: INPUT_CANCEL,\n\n STATE_POSSIBLE: STATE_POSSIBLE,\n STATE_BEGAN: STATE_BEGAN,\n STATE_CHANGED: STATE_CHANGED,\n STATE_ENDED: STATE_ENDED,\n STATE_RECOGNIZED: STATE_RECOGNIZED,\n STATE_CANCELLED: STATE_CANCELLED,\n STATE_FAILED: STATE_FAILED,\n\n DIRECTION_NONE: DIRECTION_NONE,\n DIRECTION_LEFT: DIRECTION_LEFT,\n DIRECTION_RIGHT: DIRECTION_RIGHT,\n DIRECTION_UP: DIRECTION_UP,\n DIRECTION_DOWN: DIRECTION_DOWN,\n DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL,\n DIRECTION_VERTICAL: DIRECTION_VERTICAL,\n DIRECTION_ALL: DIRECTION_ALL,\n\n Manager: Manager,\n Input: Input,\n TouchAction: TouchAction,\n\n TouchInput: TouchInput,\n MouseInput: MouseInput,\n PointerEventInput: PointerEventInput,\n TouchMouseInput: TouchMouseInput,\n SingleTouchInput: SingleTouchInput,\n\n Recognizer: Recognizer,\n AttrRecognizer: AttrRecognizer,\n Tap: TapRecognizer,\n Pan: PanRecognizer,\n Swipe: SwipeRecognizer,\n Pinch: PinchRecognizer,\n Rotate: RotateRecognizer,\n Press: PressRecognizer,\n\n on: addEventListeners,\n off: removeEventListeners,\n each: each,\n merge: merge,\n extend: extend,\n assign: assign,\n inherit: inherit,\n bindFn: bindFn,\n prefixed: prefixed\n});\n\n// this prevents errors when Hammer is loaded in the presence of an AMD\n// style loader but by script tag, not by the loader.\nvar freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line\nfreeGlobal.Hammer = Hammer;\n\nif (typeof define === 'function' && define.amd) {\n define(function() {\n return Hammer;\n });\n} else if (typeof module != 'undefined' && module.exports) {\n module.exports = Hammer;\n} else {\n window[exportName] = Hammer;\n}\n\n})(window, document, 'Hammer');\n","/**\n* @license\n* Copyright Google Inc. All Rights Reserved.\n*\n* Use of this source code is governed by an MIT-style license that can be\n* found in the LICENSE file at https://angular.io/license\n*/\n(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n\ttypeof define === 'function' && define.amd ? define(factory) :\n\t(factory());\n}(this, (function () { 'use strict';\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar Zone$1 = (function (global) {\n var FUNCTION = 'function';\n var performance = global['performance'];\n function mark(name) {\n performance && performance['mark'] && performance['mark'](name);\n }\n function performanceMeasure(name, label) {\n performance && performance['measure'] && performance['measure'](name, label);\n }\n mark('Zone');\n if (global['Zone']) {\n throw new Error('Zone already loaded.');\n }\n var Zone = /** @class */ (function () {\n function Zone(parent, zoneSpec) {\n this._properties = null;\n this._parent = parent;\n this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '';\n this._properties = zoneSpec && zoneSpec.properties || {};\n this._zoneDelegate =\n new ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);\n }\n Zone.assertZonePatched = function () {\n if (global['Promise'] !== patches['ZoneAwarePromise']) {\n throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' +\n 'has been overwritten.\\n' +\n 'Most likely cause is that a Promise polyfill has been loaded ' +\n 'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' +\n 'If you must load one, do so before loading zone.js.)');\n }\n };\n Object.defineProperty(Zone, \"root\", {\n get: function () {\n var zone = Zone.current;\n while (zone.parent) {\n zone = zone.parent;\n }\n return zone;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(Zone, \"current\", {\n get: function () {\n return _currentZoneFrame.zone;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(Zone, \"currentTask\", {\n get: function () {\n return _currentTask;\n },\n enumerable: true,\n configurable: true\n });\n Zone.__load_patch = function (name, fn) {\n if (patches.hasOwnProperty(name)) {\n throw Error('Already loaded patch: ' + name);\n }\n else if (!global['__Zone_disable_' + name]) {\n var perfName = 'Zone:' + name;\n mark(perfName);\n patches[name] = fn(global, Zone, _api);\n performanceMeasure(perfName, perfName);\n }\n };\n Object.defineProperty(Zone.prototype, \"parent\", {\n get: function () {\n return this._parent;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(Zone.prototype, \"name\", {\n get: function () {\n return this._name;\n },\n enumerable: true,\n configurable: true\n });\n Zone.prototype.get = function (key) {\n var zone = this.getZoneWith(key);\n if (zone)\n return zone._properties[key];\n };\n Zone.prototype.getZoneWith = function (key) {\n var current = this;\n while (current) {\n if (current._properties.hasOwnProperty(key)) {\n return current;\n }\n current = current._parent;\n }\n return null;\n };\n Zone.prototype.fork = function (zoneSpec) {\n if (!zoneSpec)\n throw new Error('ZoneSpec required!');\n return this._zoneDelegate.fork(this, zoneSpec);\n };\n Zone.prototype.wrap = function (callback, source) {\n if (typeof callback !== FUNCTION) {\n throw new Error('Expecting function got: ' + callback);\n }\n var _callback = this._zoneDelegate.intercept(this, callback, source);\n var zone = this;\n return function () {\n return zone.runGuarded(_callback, this, arguments, source);\n };\n };\n Zone.prototype.run = function (callback, applyThis, applyArgs, source) {\n if (applyThis === void 0) { applyThis = undefined; }\n if (applyArgs === void 0) { applyArgs = null; }\n if (source === void 0) { source = null; }\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n try {\n return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\n }\n finally {\n _currentZoneFrame = _currentZoneFrame.parent;\n }\n };\n Zone.prototype.runGuarded = function (callback, applyThis, applyArgs, source) {\n if (applyThis === void 0) { applyThis = null; }\n if (applyArgs === void 0) { applyArgs = null; }\n if (source === void 0) { source = null; }\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n try {\n try {\n return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\n }\n catch (error) {\n if (this._zoneDelegate.handleError(this, error)) {\n throw error;\n }\n }\n }\n finally {\n _currentZoneFrame = _currentZoneFrame.parent;\n }\n };\n Zone.prototype.runTask = function (task, applyThis, applyArgs) {\n if (task.zone != this) {\n throw new Error('A task can only be run in the zone of creation! (Creation: ' +\n (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\n }\n // https://github.com/angular/zone.js/issues/778, sometimes eventTask\n // will run in notScheduled(canceled) state, we should not try to\n // run such kind of task but just return\n // we have to define an variable here, if not\n // typescript compiler will complain below\n var isNotScheduled = task.state === notScheduled;\n if (isNotScheduled && task.type === eventTask) {\n return;\n }\n var reEntryGuard = task.state != running;\n reEntryGuard && task._transitionTo(running, scheduled);\n task.runCount++;\n var previousTask = _currentTask;\n _currentTask = task;\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\n try {\n if (task.type == macroTask && task.data && !task.data.isPeriodic) {\n task.cancelFn = null;\n }\n try {\n return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);\n }\n catch (error) {\n if (this._zoneDelegate.handleError(this, error)) {\n throw error;\n }\n }\n }\n finally {\n // if the task's state is notScheduled or unknown, then it has already been cancelled\n // we should not reset the state to scheduled\n if (task.state !== notScheduled && task.state !== unknown) {\n if (task.type == eventTask || (task.data && task.data.isPeriodic)) {\n reEntryGuard && task._transitionTo(scheduled, running);\n }\n else {\n task.runCount = 0;\n this._updateTaskCount(task, -1);\n reEntryGuard &&\n task._transitionTo(notScheduled, running, notScheduled);\n }\n }\n _currentZoneFrame = _currentZoneFrame.parent;\n _currentTask = previousTask;\n }\n };\n Zone.prototype.scheduleTask = function (task) {\n if (task.zone && task.zone !== this) {\n // check if the task was rescheduled, the newZone\n // should not be the children of the original zone\n var newZone = this;\n while (newZone) {\n if (newZone === task.zone) {\n throw Error(\"can not reschedule task to \" + this\n .name + \" which is descendants of the original zone \" + task.zone.name);\n }\n newZone = newZone.parent;\n }\n }\n task._transitionTo(scheduling, notScheduled);\n var zoneDelegates = [];\n task._zoneDelegates = zoneDelegates;\n task._zone = this;\n try {\n task = this._zoneDelegate.scheduleTask(this, task);\n }\n catch (err) {\n // should set task's state to unknown when scheduleTask throw error\n // because the err may from reschedule, so the fromState maybe notScheduled\n task._transitionTo(unknown, scheduling, notScheduled);\n // TODO: @JiaLiPassion, should we check the result from handleError?\n this._zoneDelegate.handleError(this, err);\n throw err;\n }\n if (task._zoneDelegates === zoneDelegates) {\n // we have to check because internally the delegate can reschedule the task.\n this._updateTaskCount(task, 1);\n }\n if (task.state == scheduling) {\n task._transitionTo(scheduled, scheduling);\n }\n return task;\n };\n Zone.prototype.scheduleMicroTask = function (source, callback, data, customSchedule) {\n return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, null));\n };\n Zone.prototype.scheduleMacroTask = function (source, callback, data, customSchedule, customCancel) {\n return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));\n };\n Zone.prototype.scheduleEventTask = function (source, callback, data, customSchedule, customCancel) {\n return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));\n };\n Zone.prototype.cancelTask = function (task) {\n if (task.zone != this)\n throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' +\n (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\n task._transitionTo(canceling, scheduled, running);\n try {\n this._zoneDelegate.cancelTask(this, task);\n }\n catch (err) {\n // if error occurs when cancelTask, transit the state to unknown\n task._transitionTo(unknown, canceling);\n this._zoneDelegate.handleError(this, err);\n throw err;\n }\n this._updateTaskCount(task, -1);\n task._transitionTo(notScheduled, canceling);\n task.runCount = 0;\n return task;\n };\n Zone.prototype._updateTaskCount = function (task, count) {\n var zoneDelegates = task._zoneDelegates;\n if (count == -1) {\n task._zoneDelegates = null;\n }\n for (var i = 0; i < zoneDelegates.length; i++) {\n zoneDelegates[i]._updateTaskCount(task.type, count);\n }\n };\n Zone.__symbol__ = __symbol__;\n return Zone;\n }());\n var DELEGATE_ZS = {\n name: '',\n onHasTask: function (delegate, _, target, hasTaskState) {\n return delegate.hasTask(target, hasTaskState);\n },\n onScheduleTask: function (delegate, _, target, task) {\n return delegate.scheduleTask(target, task);\n },\n onInvokeTask: function (delegate, _, target, task, applyThis, applyArgs) { return delegate.invokeTask(target, task, applyThis, applyArgs); },\n onCancelTask: function (delegate, _, target, task) {\n return delegate.cancelTask(target, task);\n }\n };\n var ZoneDelegate = /** @class */ (function () {\n function ZoneDelegate(zone, parentDelegate, zoneSpec) {\n this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };\n this.zone = zone;\n this._parentDelegate = parentDelegate;\n this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);\n this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);\n this._forkCurrZone = zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate.zone);\n this._interceptZS =\n zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);\n this._interceptDlgt =\n zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);\n this._interceptCurrZone =\n zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate.zone);\n this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);\n this._invokeDlgt =\n zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);\n this._invokeCurrZone = zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate.zone);\n this._handleErrorZS =\n zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);\n this._handleErrorDlgt =\n zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);\n this._handleErrorCurrZone =\n zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate.zone);\n this._scheduleTaskZS =\n zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);\n this._scheduleTaskDlgt =\n zoneSpec && (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);\n this._scheduleTaskCurrZone =\n zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate.zone);\n this._invokeTaskZS =\n zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);\n this._invokeTaskDlgt =\n zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);\n this._invokeTaskCurrZone =\n zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate.zone);\n this._cancelTaskZS =\n zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);\n this._cancelTaskDlgt =\n zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);\n this._cancelTaskCurrZone =\n zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate.zone);\n this._hasTaskZS = null;\n this._hasTaskDlgt = null;\n this._hasTaskDlgtOwner = null;\n this._hasTaskCurrZone = null;\n var zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;\n var parentHasTask = parentDelegate && parentDelegate._hasTaskZS;\n if (zoneSpecHasTask || parentHasTask) {\n // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such\n // a case all task related interceptors must go through this ZD. We can't short circuit it.\n this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;\n this._hasTaskDlgt = parentDelegate;\n this._hasTaskDlgtOwner = this;\n this._hasTaskCurrZone = zone;\n if (!zoneSpec.onScheduleTask) {\n this._scheduleTaskZS = DELEGATE_ZS;\n this._scheduleTaskDlgt = parentDelegate;\n this._scheduleTaskCurrZone = this.zone;\n }\n if (!zoneSpec.onInvokeTask) {\n this._invokeTaskZS = DELEGATE_ZS;\n this._invokeTaskDlgt = parentDelegate;\n this._invokeTaskCurrZone = this.zone;\n }\n if (!zoneSpec.onCancelTask) {\n this._cancelTaskZS = DELEGATE_ZS;\n this._cancelTaskDlgt = parentDelegate;\n this._cancelTaskCurrZone = this.zone;\n }\n }\n }\n ZoneDelegate.prototype.fork = function (targetZone, zoneSpec) {\n return this._forkZS ? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) :\n new Zone(targetZone, zoneSpec);\n };\n ZoneDelegate.prototype.intercept = function (targetZone, callback, source) {\n return this._interceptZS ?\n this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) :\n callback;\n };\n ZoneDelegate.prototype.invoke = function (targetZone, callback, applyThis, applyArgs, source) {\n return this._invokeZS ?\n this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) :\n callback.apply(applyThis, applyArgs);\n };\n ZoneDelegate.prototype.handleError = function (targetZone, error) {\n return this._handleErrorZS ?\n this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) :\n true;\n };\n ZoneDelegate.prototype.scheduleTask = function (targetZone, task) {\n var returnTask = task;\n if (this._scheduleTaskZS) {\n if (this._hasTaskZS) {\n returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);\n }\n returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);\n if (!returnTask)\n returnTask = task;\n }\n else {\n if (task.scheduleFn) {\n task.scheduleFn(task);\n }\n else if (task.type == microTask) {\n scheduleMicroTask(task);\n }\n else {\n throw new Error('Task is missing scheduleFn.');\n }\n }\n return returnTask;\n };\n ZoneDelegate.prototype.invokeTask = function (targetZone, task, applyThis, applyArgs) {\n return this._invokeTaskZS ?\n this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) :\n task.callback.apply(applyThis, applyArgs);\n };\n ZoneDelegate.prototype.cancelTask = function (targetZone, task) {\n var value;\n if (this._cancelTaskZS) {\n value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);\n }\n else {\n if (!task.cancelFn) {\n throw Error('Task is not cancelable');\n }\n value = task.cancelFn(task);\n }\n return value;\n };\n ZoneDelegate.prototype.hasTask = function (targetZone, isEmpty) {\n // hasTask should not throw error so other ZoneDelegate\n // can still trigger hasTask callback\n try {\n return this._hasTaskZS &&\n this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);\n }\n catch (err) {\n this.handleError(targetZone, err);\n }\n };\n ZoneDelegate.prototype._updateTaskCount = function (type, count) {\n var counts = this._taskCounts;\n var prev = counts[type];\n var next = counts[type] = prev + count;\n if (next < 0) {\n throw new Error('More tasks executed then were scheduled.');\n }\n if (prev == 0 || next == 0) {\n var isEmpty = {\n microTask: counts['microTask'] > 0,\n macroTask: counts['macroTask'] > 0,\n eventTask: counts['eventTask'] > 0,\n change: type\n };\n this.hasTask(this.zone, isEmpty);\n }\n };\n return ZoneDelegate;\n }());\n var ZoneTask = /** @class */ (function () {\n function ZoneTask(type, source, callback, options, scheduleFn, cancelFn) {\n this._zone = null;\n this.runCount = 0;\n this._zoneDelegates = null;\n this._state = 'notScheduled';\n this.type = type;\n this.source = source;\n this.data = options;\n this.scheduleFn = scheduleFn;\n this.cancelFn = cancelFn;\n this.callback = callback;\n var self = this;\n // TODO: @JiaLiPassion options should have interface\n if (type === eventTask && options && options.useG) {\n this.invoke = ZoneTask.invokeTask;\n }\n else {\n this.invoke = function () {\n return ZoneTask.invokeTask.call(global, self, this, arguments);\n };\n }\n }\n ZoneTask.invokeTask = function (task, target, args) {\n if (!task) {\n task = this;\n }\n _numberOfNestedTaskFrames++;\n try {\n task.runCount++;\n return task.zone.runTask(task, target, args);\n }\n finally {\n if (_numberOfNestedTaskFrames == 1) {\n drainMicroTaskQueue();\n }\n _numberOfNestedTaskFrames--;\n }\n };\n Object.defineProperty(ZoneTask.prototype, \"zone\", {\n get: function () {\n return this._zone;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(ZoneTask.prototype, \"state\", {\n get: function () {\n return this._state;\n },\n enumerable: true,\n configurable: true\n });\n ZoneTask.prototype.cancelScheduleRequest = function () {\n this._transitionTo(notScheduled, scheduling);\n };\n ZoneTask.prototype._transitionTo = function (toState, fromState1, fromState2) {\n if (this._state === fromState1 || this._state === fromState2) {\n this._state = toState;\n if (toState == notScheduled) {\n this._zoneDelegates = null;\n }\n }\n else {\n throw new Error(this.type + \" '\" + this.source + \"': can not transition to '\" + toState + \"', expecting state '\" + fromState1 + \"'\" + (fromState2 ?\n ' or \\'' + fromState2 + '\\'' :\n '') + \", was '\" + this._state + \"'.\");\n }\n };\n ZoneTask.prototype.toString = function () {\n if (this.data && typeof this.data.handleId !== 'undefined') {\n return this.data.handleId;\n }\n else {\n return Object.prototype.toString.call(this);\n }\n };\n // add toJSON method to prevent cyclic error when\n // call JSON.stringify(zoneTask)\n ZoneTask.prototype.toJSON = function () {\n return {\n type: this.type,\n state: this.state,\n source: this.source,\n zone: this.zone.name,\n runCount: this.runCount\n };\n };\n return ZoneTask;\n }());\n //////////////////////////////////////////////////////\n //////////////////////////////////////////////////////\n /// MICROTASK QUEUE\n //////////////////////////////////////////////////////\n //////////////////////////////////////////////////////\n var symbolSetTimeout = __symbol__('setTimeout');\n var symbolPromise = __symbol__('Promise');\n var symbolThen = __symbol__('then');\n var _microTaskQueue = [];\n var _isDrainingMicrotaskQueue = false;\n var nativeMicroTaskQueuePromise;\n function scheduleMicroTask(task) {\n // if we are not running in any task, and there has not been anything scheduled\n // we must bootstrap the initial task creation by manually scheduling the drain\n if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {\n // We are not running in Task, so we need to kickstart the microtask queue.\n if (!nativeMicroTaskQueuePromise) {\n if (global[symbolPromise]) {\n nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);\n }\n }\n if (nativeMicroTaskQueuePromise) {\n nativeMicroTaskQueuePromise[symbolThen](drainMicroTaskQueue);\n }\n else {\n global[symbolSetTimeout](drainMicroTaskQueue, 0);\n }\n }\n task && _microTaskQueue.push(task);\n }\n function drainMicroTaskQueue() {\n if (!_isDrainingMicrotaskQueue) {\n _isDrainingMicrotaskQueue = true;\n while (_microTaskQueue.length) {\n var queue = _microTaskQueue;\n _microTaskQueue = [];\n for (var i = 0; i < queue.length; i++) {\n var task = queue[i];\n try {\n task.zone.runTask(task, null, null);\n }\n catch (error) {\n _api.onUnhandledError(error);\n }\n }\n }\n _api.microtaskDrainDone();\n _isDrainingMicrotaskQueue = false;\n }\n }\n //////////////////////////////////////////////////////\n //////////////////////////////////////////////////////\n /// BOOTSTRAP\n //////////////////////////////////////////////////////\n //////////////////////////////////////////////////////\n var NO_ZONE = { name: 'NO ZONE' };\n var notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling', unknown = 'unknown';\n var microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';\n var patches = {};\n var _api = {\n symbol: __symbol__,\n currentZoneFrame: function () { return _currentZoneFrame; },\n onUnhandledError: noop,\n microtaskDrainDone: noop,\n scheduleMicroTask: scheduleMicroTask,\n showUncaughtError: function () { return !Zone[__symbol__('ignoreConsoleErrorUncaughtError')]; },\n patchEventTarget: function () { return []; },\n patchOnProperties: noop,\n patchMethod: function () { return noop; },\n bindArguments: function () { return null; },\n setNativePromise: function (NativePromise) {\n // sometimes NativePromise.resolve static function\n // is not ready yet, (such as core-js/es6.promise)\n // so we need to check here.\n if (NativePromise && typeof NativePromise.resolve === FUNCTION) {\n nativeMicroTaskQueuePromise = NativePromise.resolve(0);\n }\n },\n };\n var _currentZoneFrame = { parent: null, zone: new Zone(null, null) };\n var _currentTask = null;\n var _numberOfNestedTaskFrames = 0;\n function noop() { }\n function __symbol__(name) {\n return '__zone_symbol__' + name;\n }\n performanceMeasure('Zone', 'Zone');\n return global['Zone'] = Zone;\n})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);\n\nZone.__load_patch('ZoneAwarePromise', function (global, Zone, api) {\n var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n var ObjectDefineProperty = Object.defineProperty;\n function readableObjectToString(obj) {\n if (obj && obj.toString === Object.prototype.toString) {\n var className = obj.constructor && obj.constructor.name;\n return (className ? className : '') + ': ' + JSON.stringify(obj);\n }\n return obj ? obj.toString() : Object.prototype.toString.call(obj);\n }\n var __symbol__ = api.symbol;\n var _uncaughtPromiseErrors = [];\n var symbolPromise = __symbol__('Promise');\n var symbolThen = __symbol__('then');\n var creationTrace = '__creationTrace__';\n api.onUnhandledError = function (e) {\n if (api.showUncaughtError()) {\n var rejection = e && e.rejection;\n if (rejection) {\n console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);\n }\n else {\n console.error(e);\n }\n }\n };\n api.microtaskDrainDone = function () {\n while (_uncaughtPromiseErrors.length) {\n var _loop_1 = function () {\n var uncaughtPromiseError = _uncaughtPromiseErrors.shift();\n try {\n uncaughtPromiseError.zone.runGuarded(function () {\n throw uncaughtPromiseError;\n });\n }\n catch (error) {\n handleUnhandledRejection(error);\n }\n };\n while (_uncaughtPromiseErrors.length) {\n _loop_1();\n }\n }\n };\n var UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');\n function handleUnhandledRejection(e) {\n api.onUnhandledError(e);\n try {\n var handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];\n if (handler && typeof handler === 'function') {\n handler.call(this, e);\n }\n }\n catch (err) {\n }\n }\n function isThenable(value) {\n return value && value.then;\n }\n function forwardResolution(value) {\n return value;\n }\n function forwardRejection(rejection) {\n return ZoneAwarePromise.reject(rejection);\n }\n var symbolState = __symbol__('state');\n var symbolValue = __symbol__('value');\n var symbolFinally = __symbol__('finally');\n var symbolParentPromiseValue = __symbol__('parentPromiseValue');\n var symbolParentPromiseState = __symbol__('parentPromiseState');\n var source = 'Promise.then';\n var UNRESOLVED = null;\n var RESOLVED = true;\n var REJECTED = false;\n var REJECTED_NO_CATCH = 0;\n function makeResolver(promise, state) {\n return function (v) {\n try {\n resolvePromise(promise, state, v);\n }\n catch (err) {\n resolvePromise(promise, false, err);\n }\n // Do not return value or you will break the Promise spec.\n };\n }\n var once = function () {\n var wasCalled = false;\n return function wrapper(wrappedFunction) {\n return function () {\n if (wasCalled) {\n return;\n }\n wasCalled = true;\n wrappedFunction.apply(null, arguments);\n };\n };\n };\n var TYPE_ERROR = 'Promise resolved with itself';\n var CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');\n // Promise Resolution\n function resolvePromise(promise, state, value) {\n var onceWrapper = once();\n if (promise === value) {\n throw new TypeError(TYPE_ERROR);\n }\n if (promise[symbolState] === UNRESOLVED) {\n // should only get value.then once based on promise spec.\n var then = null;\n try {\n if (typeof value === 'object' || typeof value === 'function') {\n then = value && value.then;\n }\n }\n catch (err) {\n onceWrapper(function () {\n resolvePromise(promise, false, err);\n })();\n return promise;\n }\n // if (value instanceof ZoneAwarePromise) {\n if (state !== REJECTED && value instanceof ZoneAwarePromise &&\n value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) &&\n value[symbolState] !== UNRESOLVED) {\n clearRejectedNoCatch(value);\n resolvePromise(promise, value[symbolState], value[symbolValue]);\n }\n else if (state !== REJECTED && typeof then === 'function') {\n try {\n then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));\n }\n catch (err) {\n onceWrapper(function () {\n resolvePromise(promise, false, err);\n })();\n }\n }\n else {\n promise[symbolState] = state;\n var queue = promise[symbolValue];\n promise[symbolValue] = value;\n if (promise[symbolFinally] === symbolFinally) {\n // the promise is generated by Promise.prototype.finally \n if (state === RESOLVED) {\n // the state is resolved, should ignore the value\n // and use parent promise value\n promise[symbolState] = promise[symbolParentPromiseState];\n promise[symbolValue] = promise[symbolParentPromiseValue];\n }\n }\n // record task information in value when error occurs, so we can\n // do some additional work such as render longStackTrace\n if (state === REJECTED && value instanceof Error) {\n // check if longStackTraceZone is here\n var trace = Zone.currentTask && Zone.currentTask.data &&\n Zone.currentTask.data[creationTrace];\n if (trace) {\n // only keep the long stack trace into error when in longStackTraceZone\n ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, { configurable: true, enumerable: false, writable: true, value: trace });\n }\n }\n for (var i = 0; i < queue.length;) {\n scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);\n }\n if (queue.length == 0 && state == REJECTED) {\n promise[symbolState] = REJECTED_NO_CATCH;\n try {\n // try to print more readable error log\n throw new Error('Uncaught (in promise): ' + readableObjectToString(value) +\n (value && value.stack ? '\\n' + value.stack : ''));\n }\n catch (err) {\n var error_1 = err;\n error_1.rejection = value;\n error_1.promise = promise;\n error_1.zone = Zone.current;\n error_1.task = Zone.currentTask;\n _uncaughtPromiseErrors.push(error_1);\n api.scheduleMicroTask(); // to make sure that it is running\n }\n }\n }\n }\n // Resolving an already resolved promise is a noop.\n return promise;\n }\n var REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');\n function clearRejectedNoCatch(promise) {\n if (promise[symbolState] === REJECTED_NO_CATCH) {\n // if the promise is rejected no catch status\n // and queue.length > 0, means there is a error handler\n // here to handle the rejected promise, we should trigger\n // windows.rejectionhandled eventHandler or nodejs rejectionHandled\n // eventHandler\n try {\n var handler = Zone[REJECTION_HANDLED_HANDLER];\n if (handler && typeof handler === 'function') {\n handler.call(this, { rejection: promise[symbolValue], promise: promise });\n }\n }\n catch (err) {\n }\n promise[symbolState] = REJECTED;\n for (var i = 0; i < _uncaughtPromiseErrors.length; i++) {\n if (promise === _uncaughtPromiseErrors[i].promise) {\n _uncaughtPromiseErrors.splice(i, 1);\n }\n }\n }\n }\n function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {\n clearRejectedNoCatch(promise);\n var promiseState = promise[symbolState];\n var delegate = promiseState ?\n (typeof onFulfilled === 'function') ? onFulfilled : forwardResolution :\n (typeof onRejected === 'function') ? onRejected : forwardRejection;\n zone.scheduleMicroTask(source, function () {\n try {\n var parentPromiseValue = promise[symbolValue];\n var isFinallyPromise = chainPromise && symbolFinally === chainPromise[symbolFinally];\n if (isFinallyPromise) {\n // if the promise is generated from finally call, keep parent promise's state and value\n chainPromise[symbolParentPromiseValue] = parentPromiseValue;\n chainPromise[symbolParentPromiseState] = promiseState;\n }\n // should not pass value to finally callback\n var value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ? [] : [parentPromiseValue]);\n resolvePromise(chainPromise, true, value);\n }\n catch (error) {\n // if error occurs, should always return this error\n resolvePromise(chainPromise, false, error);\n }\n }, chainPromise);\n }\n var ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';\n var ZoneAwarePromise = /** @class */ (function () {\n function ZoneAwarePromise(executor) {\n var promise = this;\n if (!(promise instanceof ZoneAwarePromise)) {\n throw new Error('Must be an instanceof Promise.');\n }\n promise[symbolState] = UNRESOLVED;\n promise[symbolValue] = []; // queue;\n try {\n executor && executor(makeResolver(promise, RESOLVED), makeResolver(promise, REJECTED));\n }\n catch (error) {\n resolvePromise(promise, false, error);\n }\n }\n ZoneAwarePromise.toString = function () {\n return ZONE_AWARE_PROMISE_TO_STRING;\n };\n ZoneAwarePromise.resolve = function (value) {\n return resolvePromise(new this(null), RESOLVED, value);\n };\n ZoneAwarePromise.reject = function (error) {\n return resolvePromise(new this(null), REJECTED, error);\n };\n ZoneAwarePromise.race = function (values) {\n var resolve;\n var reject;\n var promise = new this(function (res, rej) {\n resolve = res;\n reject = rej;\n });\n function onResolve(value) {\n promise && (promise = null || resolve(value));\n }\n function onReject(error) {\n promise && (promise = null || reject(error));\n }\n for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {\n var value = values_1[_i];\n if (!isThenable(value)) {\n value = this.resolve(value);\n }\n value.then(onResolve, onReject);\n }\n return promise;\n };\n ZoneAwarePromise.all = function (values) {\n var resolve;\n var reject;\n var promise = new this(function (res, rej) {\n resolve = res;\n reject = rej;\n });\n var count = 0;\n var resolvedValues = [];\n for (var _i = 0, values_2 = values; _i < values_2.length; _i++) {\n var value = values_2[_i];\n if (!isThenable(value)) {\n value = this.resolve(value);\n }\n value.then((function (index) { return function (value) {\n resolvedValues[index] = value;\n count--;\n if (!count) {\n resolve(resolvedValues);\n }\n }; })(count), reject);\n count++;\n }\n if (!count)\n resolve(resolvedValues);\n return promise;\n };\n ZoneAwarePromise.prototype.then = function (onFulfilled, onRejected) {\n var chainPromise = new this.constructor(null);\n var zone = Zone.current;\n if (this[symbolState] == UNRESOLVED) {\n this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);\n }\n else {\n scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);\n }\n return chainPromise;\n };\n ZoneAwarePromise.prototype.catch = function (onRejected) {\n return this.then(null, onRejected);\n };\n ZoneAwarePromise.prototype.finally = function (onFinally) {\n var chainPromise = new this.constructor(null);\n chainPromise[symbolFinally] = symbolFinally;\n var zone = Zone.current;\n if (this[symbolState] == UNRESOLVED) {\n this[symbolValue].push(zone, chainPromise, onFinally, onFinally);\n }\n else {\n scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);\n }\n return chainPromise;\n };\n return ZoneAwarePromise;\n }());\n // Protect against aggressive optimizers dropping seemingly unused properties.\n // E.g. Closure Compiler in advanced mode.\n ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;\n ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;\n ZoneAwarePromise['race'] = ZoneAwarePromise.race;\n ZoneAwarePromise['all'] = ZoneAwarePromise.all;\n var NativePromise = global[symbolPromise] = global['Promise'];\n var ZONE_AWARE_PROMISE = Zone.__symbol__('ZoneAwarePromise');\n var desc = ObjectGetOwnPropertyDescriptor(global, 'Promise');\n if (!desc || desc.configurable) {\n desc && delete desc.writable;\n desc && delete desc.value;\n if (!desc) {\n desc = { configurable: true, enumerable: true };\n }\n desc.get = function () {\n // if we already set ZoneAwarePromise, use patched one\n // otherwise return native one.\n return global[ZONE_AWARE_PROMISE] ? global[ZONE_AWARE_PROMISE] : global[symbolPromise];\n };\n desc.set = function (NewNativePromise) {\n if (NewNativePromise === ZoneAwarePromise) {\n // if the NewNativePromise is ZoneAwarePromise\n // save to global\n global[ZONE_AWARE_PROMISE] = NewNativePromise;\n }\n else {\n // if the NewNativePromise is not ZoneAwarePromise\n // for example: after load zone.js, some library just\n // set es6-promise to global, if we set it to global\n // directly, assertZonePatched will fail and angular\n // will not loaded, so we just set the NewNativePromise\n // to global[symbolPromise], so the result is just like\n // we load ES6 Promise before zone.js\n global[symbolPromise] = NewNativePromise;\n if (!NewNativePromise.prototype[symbolThen]) {\n patchThen(NewNativePromise);\n }\n api.setNativePromise(NewNativePromise);\n }\n };\n ObjectDefineProperty(global, 'Promise', desc);\n }\n global['Promise'] = ZoneAwarePromise;\n var symbolThenPatched = __symbol__('thenPatched');\n function patchThen(Ctor) {\n var proto = Ctor.prototype;\n var prop = ObjectGetOwnPropertyDescriptor(proto, 'then');\n if (prop && (prop.writable === false || !prop.configurable)) {\n // check Ctor.prototype.then propertyDescriptor is writable or not\n // in meteor env, writable is false, we should ignore such case\n return;\n }\n var originalThen = proto.then;\n // Keep a reference to the original method.\n proto[symbolThen] = originalThen;\n Ctor.prototype.then = function (onResolve, onReject) {\n var _this = this;\n var wrapped = new ZoneAwarePromise(function (resolve, reject) {\n originalThen.call(_this, resolve, reject);\n });\n return wrapped.then(onResolve, onReject);\n };\n Ctor[symbolThenPatched] = true;\n }\n function zoneify(fn) {\n return function () {\n var resultPromise = fn.apply(this, arguments);\n if (resultPromise instanceof ZoneAwarePromise) {\n return resultPromise;\n }\n var ctor = resultPromise.constructor;\n if (!ctor[symbolThenPatched]) {\n patchThen(ctor);\n }\n return resultPromise;\n };\n }\n if (NativePromise) {\n patchThen(NativePromise);\n var fetch_1 = global['fetch'];\n if (typeof fetch_1 == 'function') {\n global['fetch'] = zoneify(fetch_1);\n }\n }\n // This is not part of public API, but it is useful for tests, so we expose it.\n Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;\n return ZoneAwarePromise;\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Suppress closure compiler errors about unknown 'Zone' variable\n * @fileoverview\n * @suppress {undefinedVars,globalThis,missingRequire}\n */\n// issue #989, to reduce bundle size, use short name\n/** Object.getOwnPropertyDescriptor */\nvar ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n/** Object.defineProperty */\nvar ObjectDefineProperty = Object.defineProperty;\n/** Object.getPrototypeOf */\nvar ObjectGetPrototypeOf = Object.getPrototypeOf;\n/** Object.create */\nvar ObjectCreate = Object.create;\n/** Array.prototype.slice */\nvar ArraySlice = Array.prototype.slice;\n/** addEventListener string const */\nvar ADD_EVENT_LISTENER_STR = 'addEventListener';\n/** removeEventListener string const */\nvar REMOVE_EVENT_LISTENER_STR = 'removeEventListener';\n/** zoneSymbol addEventListener */\nvar ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);\n/** zoneSymbol removeEventListener */\nvar ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);\n/** true string const */\nvar TRUE_STR = 'true';\n/** false string const */\nvar FALSE_STR = 'false';\n/** __zone_symbol__ string const */\nvar ZONE_SYMBOL_PREFIX = '__zone_symbol__';\nfunction wrapWithCurrentZone(callback, source) {\n return Zone.current.wrap(callback, source);\n}\nfunction scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {\n return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);\n}\nvar zoneSymbol = Zone.__symbol__;\nvar isWindowExists = typeof window !== 'undefined';\nvar internalWindow = isWindowExists ? window : undefined;\nvar _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;\nvar REMOVE_ATTRIBUTE = 'removeAttribute';\nvar NULL_ON_PROP_VALUE = [null];\nfunction bindArguments(args, source) {\n for (var i = args.length - 1; i >= 0; i--) {\n if (typeof args[i] === 'function') {\n args[i] = wrapWithCurrentZone(args[i], source + '_' + i);\n }\n }\n return args;\n}\nfunction patchPrototype(prototype, fnNames) {\n var source = prototype.constructor['name'];\n var _loop_1 = function (i) {\n var name_1 = fnNames[i];\n var delegate = prototype[name_1];\n if (delegate) {\n var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name_1);\n if (!isPropertyWritable(prototypeDesc)) {\n return \"continue\";\n }\n prototype[name_1] = (function (delegate) {\n var patched = function () {\n return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));\n };\n attachOriginToPatched(patched, delegate);\n return patched;\n })(delegate);\n }\n };\n for (var i = 0; i < fnNames.length; i++) {\n _loop_1(i);\n }\n}\nfunction isPropertyWritable(propertyDesc) {\n if (!propertyDesc) {\n return true;\n }\n if (propertyDesc.writable === false) {\n return false;\n }\n return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');\n}\nvar isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);\n// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\n// this code.\nvar isNode = (!('nw' in _global) && typeof _global.process !== 'undefined' &&\n {}.toString.call(_global.process) === '[object process]');\nvar isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);\n// we are in electron of nw, so we are both browser and nodejs\n// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\n// this code.\nvar isMix = typeof _global.process !== 'undefined' &&\n {}.toString.call(_global.process) === '[object process]' && !isWebWorker &&\n !!(isWindowExists && internalWindow['HTMLElement']);\nvar zoneSymbolEventNames = {};\nvar wrapFn = function (event) {\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n // event will be undefined, so we need to use window.event\n event = event || _global.event;\n if (!event) {\n return;\n }\n var eventNameSymbol = zoneSymbolEventNames[event.type];\n if (!eventNameSymbol) {\n eventNameSymbol = zoneSymbolEventNames[event.type] = zoneSymbol('ON_PROPERTY' + event.type);\n }\n var target = this || event.target || _global;\n var listener = target[eventNameSymbol];\n var result = listener && listener.apply(this, arguments);\n if (result != undefined && !result) {\n event.preventDefault();\n }\n return result;\n};\nfunction patchProperty(obj, prop, prototype) {\n var desc = ObjectGetOwnPropertyDescriptor(obj, prop);\n if (!desc && prototype) {\n // when patch window object, use prototype to check prop exist or not\n var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);\n if (prototypeDesc) {\n desc = { enumerable: true, configurable: true };\n }\n }\n // if the descriptor not exists or is not configurable\n // just return\n if (!desc || !desc.configurable) {\n return;\n }\n // A property descriptor cannot have getter/setter and be writable\n // deleting the writable and value properties avoids this error:\n //\n // TypeError: property descriptors must not specify a value or be writable when a\n // getter or setter has been specified\n delete desc.writable;\n delete desc.value;\n var originalDescGet = desc.get;\n var originalDescSet = desc.set;\n // substr(2) cuz 'onclick' -> 'click', etc\n var eventName = prop.substr(2);\n var eventNameSymbol = zoneSymbolEventNames[eventName];\n if (!eventNameSymbol) {\n eventNameSymbol = zoneSymbolEventNames[eventName] = zoneSymbol('ON_PROPERTY' + eventName);\n }\n desc.set = function (newValue) {\n // in some of windows's onproperty callback, this is undefined\n // so we need to check it\n var target = this;\n if (!target && obj === _global) {\n target = _global;\n }\n if (!target) {\n return;\n }\n var previousValue = target[eventNameSymbol];\n if (previousValue) {\n target.removeEventListener(eventName, wrapFn);\n }\n // issue #978, when onload handler was added before loading zone.js\n // we should remove it with originalDescSet\n if (originalDescSet) {\n originalDescSet.apply(target, NULL_ON_PROP_VALUE);\n }\n if (typeof newValue === 'function') {\n target[eventNameSymbol] = newValue;\n target.addEventListener(eventName, wrapFn, false);\n }\n else {\n target[eventNameSymbol] = null;\n }\n };\n // The getter would return undefined for unassigned properties but the default value of an\n // unassigned property is null\n desc.get = function () {\n // in some of windows's onproperty callback, this is undefined\n // so we need to check it\n var target = this;\n if (!target && obj === _global) {\n target = _global;\n }\n if (!target) {\n return null;\n }\n var listener = target[eventNameSymbol];\n if (listener) {\n return listener;\n }\n else if (originalDescGet) {\n // result will be null when use inline event attribute,\n // such as \n // because the onclick function is internal raw uncompiled handler\n // the onclick will be evaluated when first time event was triggered or\n // the property is accessed, https://github.com/angular/zone.js/issues/525\n // so we should use original native get to retrieve the handler\n var value = originalDescGet && originalDescGet.call(this);\n if (value) {\n desc.set.call(this, value);\n if (typeof target[REMOVE_ATTRIBUTE] === 'function') {\n target.removeAttribute(prop);\n }\n return value;\n }\n }\n return null;\n };\n ObjectDefineProperty(obj, prop, desc);\n}\nfunction patchOnProperties(obj, properties, prototype) {\n if (properties) {\n for (var i = 0; i < properties.length; i++) {\n patchProperty(obj, 'on' + properties[i], prototype);\n }\n }\n else {\n var onProperties = [];\n for (var prop in obj) {\n if (prop.substr(0, 2) == 'on') {\n onProperties.push(prop);\n }\n }\n for (var j = 0; j < onProperties.length; j++) {\n patchProperty(obj, onProperties[j], prototype);\n }\n }\n}\nvar originalInstanceKey = zoneSymbol('originalInstance');\n// wrap some native API on `window`\nfunction patchClass(className) {\n var OriginalClass = _global[className];\n if (!OriginalClass)\n return;\n // keep original class in global\n _global[zoneSymbol(className)] = OriginalClass;\n _global[className] = function () {\n var a = bindArguments(arguments, className);\n switch (a.length) {\n case 0:\n this[originalInstanceKey] = new OriginalClass();\n break;\n case 1:\n this[originalInstanceKey] = new OriginalClass(a[0]);\n break;\n case 2:\n this[originalInstanceKey] = new OriginalClass(a[0], a[1]);\n break;\n case 3:\n this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);\n break;\n case 4:\n this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);\n break;\n default:\n throw new Error('Arg list too long.');\n }\n };\n // attach original delegate to patched function\n attachOriginToPatched(_global[className], OriginalClass);\n var instance = new OriginalClass(function () { });\n var prop;\n for (prop in instance) {\n // https://bugs.webkit.org/show_bug.cgi?id=44721\n if (className === 'XMLHttpRequest' && prop === 'responseBlob')\n continue;\n (function (prop) {\n if (typeof instance[prop] === 'function') {\n _global[className].prototype[prop] = function () {\n return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);\n };\n }\n else {\n ObjectDefineProperty(_global[className].prototype, prop, {\n set: function (fn) {\n if (typeof fn === 'function') {\n this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop);\n // keep callback in wrapped function so we can\n // use it in Function.prototype.toString to return\n // the native one.\n attachOriginToPatched(this[originalInstanceKey][prop], fn);\n }\n else {\n this[originalInstanceKey][prop] = fn;\n }\n },\n get: function () {\n return this[originalInstanceKey][prop];\n }\n });\n }\n }(prop));\n }\n for (prop in OriginalClass) {\n if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {\n _global[className][prop] = OriginalClass[prop];\n }\n }\n}\nfunction patchMethod(target, name, patchFn) {\n var proto = target;\n while (proto && !proto.hasOwnProperty(name)) {\n proto = ObjectGetPrototypeOf(proto);\n }\n if (!proto && target[name]) {\n // somehow we did not find it, but we can see it. This happens on IE for Window properties.\n proto = target;\n }\n var delegateName = zoneSymbol(name);\n var delegate;\n if (proto && !(delegate = proto[delegateName])) {\n delegate = proto[delegateName] = proto[name];\n // check whether proto[name] is writable\n // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob\n var desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);\n if (isPropertyWritable(desc)) {\n var patchDelegate_1 = patchFn(delegate, delegateName, name);\n proto[name] = function () {\n return patchDelegate_1(this, arguments);\n };\n attachOriginToPatched(proto[name], delegate);\n }\n }\n return delegate;\n}\n// TODO: @JiaLiPassion, support cancel task later if necessary\nfunction patchMacroTask(obj, funcName, metaCreator) {\n var setNative = null;\n function scheduleTask(task) {\n var data = task.data;\n data.args[data.cbIdx] = function () {\n task.invoke.apply(this, arguments);\n };\n setNative.apply(data.target, data.args);\n return task;\n }\n setNative = patchMethod(obj, funcName, function (delegate) { return function (self, args) {\n var meta = metaCreator(self, args);\n if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {\n return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask, null);\n }\n else {\n // cause an error by calling it directly.\n return delegate.apply(self, args);\n }\n }; });\n}\n\nfunction attachOriginToPatched(patched, original) {\n patched[zoneSymbol('OriginalDelegate')] = original;\n}\nvar isDetectedIEOrEdge = false;\nvar ieOrEdge = false;\nfunction isIEOrEdge() {\n if (isDetectedIEOrEdge) {\n return ieOrEdge;\n }\n isDetectedIEOrEdge = true;\n try {\n var ua = internalWindow.navigator.userAgent;\n if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {\n ieOrEdge = true;\n }\n return ieOrEdge;\n }\n catch (error) {\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// override Function.prototype.toString to make zone.js patched function\n// look like native function\nZone.__load_patch('toString', function (global) {\n // patch Func.prototype.toString to let them look like native\n var originalFunctionToString = Function.prototype.toString;\n var ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');\n var PROMISE_SYMBOL = zoneSymbol('Promise');\n var ERROR_SYMBOL = zoneSymbol('Error');\n var newFunctionToString = function toString() {\n if (typeof this === 'function') {\n var originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];\n if (originalDelegate) {\n if (typeof originalDelegate === 'function') {\n return originalFunctionToString.apply(this[ORIGINAL_DELEGATE_SYMBOL], arguments);\n }\n else {\n return Object.prototype.toString.call(originalDelegate);\n }\n }\n if (this === Promise) {\n var nativePromise = global[PROMISE_SYMBOL];\n if (nativePromise) {\n return originalFunctionToString.apply(nativePromise, arguments);\n }\n }\n if (this === Error) {\n var nativeError = global[ERROR_SYMBOL];\n if (nativeError) {\n return originalFunctionToString.apply(nativeError, arguments);\n }\n }\n }\n return originalFunctionToString.apply(this, arguments);\n };\n newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;\n Function.prototype.toString = newFunctionToString;\n // patch Object.prototype.toString to let them look like native\n var originalObjectToString = Object.prototype.toString;\n var PROMISE_OBJECT_TO_STRING = '[object Promise]';\n Object.prototype.toString = function () {\n if (this instanceof Promise) {\n return PROMISE_OBJECT_TO_STRING;\n }\n return originalObjectToString.apply(this, arguments);\n };\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\n// an identifier to tell ZoneTask do not create a new invoke closure\nvar OPTIMIZED_ZONE_EVENT_TASK_DATA = {\n useG: true\n};\nvar zoneSymbolEventNames$1 = {};\nvar globalSources = {};\nvar EVENT_NAME_SYMBOL_REGX = /^__zone_symbol__(\\w+)(true|false)$/;\nvar IMMEDIATE_PROPAGATION_SYMBOL = ('__zone_symbol__propagationStopped');\nfunction patchEventTarget(_global, apis, patchOptions) {\n var ADD_EVENT_LISTENER = (patchOptions && patchOptions.add) || ADD_EVENT_LISTENER_STR;\n var REMOVE_EVENT_LISTENER = (patchOptions && patchOptions.rm) || REMOVE_EVENT_LISTENER_STR;\n var LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.listeners) || 'eventListeners';\n var REMOVE_ALL_LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.rmAll) || 'removeAllListeners';\n var zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);\n var ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';\n var PREPEND_EVENT_LISTENER = 'prependListener';\n var PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';\n var invokeTask = function (task, target, event) {\n // for better performance, check isRemoved which is set\n // by removeEventListener\n if (task.isRemoved) {\n return;\n }\n var delegate = task.callback;\n if (typeof delegate === 'object' && delegate.handleEvent) {\n // create the bind version of handleEvent when invoke\n task.callback = function (event) { return delegate.handleEvent(event); };\n task.originalDelegate = delegate;\n }\n // invoke static task.invoke\n task.invoke(task, target, [event]);\n var options = task.options;\n if (options && typeof options === 'object' && options.once) {\n // if options.once is true, after invoke once remove listener here\n // only browser need to do this, nodejs eventEmitter will cal removeListener\n // inside EventEmitter.once\n var delegate_1 = task.originalDelegate ? task.originalDelegate : task.callback;\n target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate_1, options);\n }\n };\n // global shared zoneAwareCallback to handle all event callback with capture = false\n var globalZoneAwareCallback = function (event) {\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n // event will be undefined, so we need to use window.event\n event = event || _global.event;\n if (!event) {\n return;\n }\n // event.target is needed for Samsung TV and SourceBuffer\n // || global is needed https://github.com/angular/zone.js/issues/190\n var target = this || event.target || _global;\n var tasks = target[zoneSymbolEventNames$1[event.type][FALSE_STR]];\n if (tasks) {\n // invoke all tasks which attached to current target with given event.type and capture = false\n // for performance concern, if task.length === 1, just invoke\n if (tasks.length === 1) {\n invokeTask(tasks[0], target, event);\n }\n else {\n // https://github.com/angular/zone.js/issues/836\n // copy the tasks array before invoke, to avoid\n // the callback will remove itself or other listener\n var copyTasks = tasks.slice();\n for (var i = 0; i < copyTasks.length; i++) {\n if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\n break;\n }\n invokeTask(copyTasks[i], target, event);\n }\n }\n }\n };\n // global shared zoneAwareCallback to handle all event callback with capture = true\n var globalZoneAwareCaptureCallback = function (event) {\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\n // event will be undefined, so we need to use window.event\n event = event || _global.event;\n if (!event) {\n return;\n }\n // event.target is needed for Samsung TV and SourceBuffer\n // || global is needed https://github.com/angular/zone.js/issues/190\n var target = this || event.target || _global;\n var tasks = target[zoneSymbolEventNames$1[event.type][TRUE_STR]];\n if (tasks) {\n // invoke all tasks which attached to current target with given event.type and capture = false\n // for performance concern, if task.length === 1, just invoke\n if (tasks.length === 1) {\n invokeTask(tasks[0], target, event);\n }\n else {\n // https://github.com/angular/zone.js/issues/836\n // copy the tasks array before invoke, to avoid\n // the callback will remove itself or other listener\n var copyTasks = tasks.slice();\n for (var i = 0; i < copyTasks.length; i++) {\n if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\n break;\n }\n invokeTask(copyTasks[i], target, event);\n }\n }\n }\n };\n function patchEventTargetMethods(obj, patchOptions) {\n if (!obj) {\n return false;\n }\n var useGlobalCallback = true;\n if (patchOptions && patchOptions.useG !== undefined) {\n useGlobalCallback = patchOptions.useG;\n }\n var validateHandler = patchOptions && patchOptions.vh;\n var checkDuplicate = true;\n if (patchOptions && patchOptions.chkDup !== undefined) {\n checkDuplicate = patchOptions.chkDup;\n }\n var returnTarget = false;\n if (patchOptions && patchOptions.rt !== undefined) {\n returnTarget = patchOptions.rt;\n }\n var proto = obj;\n while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {\n proto = ObjectGetPrototypeOf(proto);\n }\n if (!proto && obj[ADD_EVENT_LISTENER]) {\n // somehow we did not find it, but we can see it. This happens on IE for Window properties.\n proto = obj;\n }\n if (!proto) {\n return false;\n }\n if (proto[zoneSymbolAddEventListener]) {\n return false;\n }\n // a shared global taskData to pass data for scheduleEventTask\n // so we do not need to create a new object just for pass some data\n var taskData = {};\n var nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];\n var nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] =\n proto[REMOVE_EVENT_LISTENER];\n var nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] =\n proto[LISTENERS_EVENT_LISTENER];\n var nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] =\n proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];\n var nativePrependEventListener;\n if (patchOptions && patchOptions.prepend) {\n nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] =\n proto[patchOptions.prepend];\n }\n var customScheduleGlobal = function () {\n // if there is already a task for the eventName + capture,\n // just return, because we use the shared globalZoneAwareCallback here.\n if (taskData.isExisting) {\n return;\n }\n return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);\n };\n var customCancelGlobal = function (task) {\n // if task is not marked as isRemoved, this call is directly\n // from Zone.prototype.cancelTask, we should remove the task\n // from tasksList of target first\n if (!task.isRemoved) {\n var symbolEventNames = zoneSymbolEventNames$1[task.eventName];\n var symbolEventName = void 0;\n if (symbolEventNames) {\n symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];\n }\n var existingTasks = symbolEventName && task.target[symbolEventName];\n if (existingTasks) {\n for (var i = 0; i < existingTasks.length; i++) {\n var existingTask = existingTasks[i];\n if (existingTask === task) {\n existingTasks.splice(i, 1);\n // set isRemoved to data for faster invokeTask check\n task.isRemoved = true;\n if (existingTasks.length === 0) {\n // all tasks for the eventName + capture have gone,\n // remove globalZoneAwareCallback and remove the task cache from target\n task.allRemoved = true;\n task.target[symbolEventName] = null;\n }\n break;\n }\n }\n }\n }\n // if all tasks for the eventName + capture have gone,\n // we will really remove the global event callback,\n // if not, return\n if (!task.allRemoved) {\n return;\n }\n return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);\n };\n var customScheduleNonGlobal = function (task) {\n return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\n };\n var customSchedulePrepend = function (task) {\n return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\n };\n var customCancelNonGlobal = function (task) {\n return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);\n };\n var customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;\n var customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;\n var compareTaskCallbackVsDelegate = function (task, delegate) {\n var typeOfDelegate = typeof delegate;\n return (typeOfDelegate === 'function' && task.callback === delegate) ||\n (typeOfDelegate === 'object' && task.originalDelegate === delegate);\n };\n var compare = (patchOptions && patchOptions.diff) ? patchOptions.diff : compareTaskCallbackVsDelegate;\n var blackListedEvents = Zone[Zone.__symbol__('BLACK_LISTED_EVENTS')];\n var makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget, prepend) {\n if (returnTarget === void 0) { returnTarget = false; }\n if (prepend === void 0) { prepend = false; }\n return function () {\n var target = this || _global;\n var delegate = arguments[1];\n if (!delegate) {\n return nativeListener.apply(this, arguments);\n }\n // don't create the bind delegate function for handleEvent\n // case here to improve addEventListener performance\n // we will create the bind delegate when invoke\n var isHandleEvent = false;\n if (typeof delegate !== 'function') {\n if (!delegate.handleEvent) {\n return nativeListener.apply(this, arguments);\n }\n isHandleEvent = true;\n }\n if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {\n return;\n }\n var eventName = arguments[0];\n var options = arguments[2];\n if (blackListedEvents) {\n // check black list\n for (var i = 0; i < blackListedEvents.length; i++) {\n if (eventName === blackListedEvents[i]) {\n return nativeListener.apply(this, arguments);\n }\n }\n }\n var capture;\n var once = false;\n if (options === undefined) {\n capture = false;\n }\n else if (options === true) {\n capture = true;\n }\n else if (options === false) {\n capture = false;\n }\n else {\n capture = options ? !!options.capture : false;\n once = options ? !!options.once : false;\n }\n var zone = Zone.current;\n var symbolEventNames = zoneSymbolEventNames$1[eventName];\n var symbolEventName;\n if (!symbolEventNames) {\n // the code is duplicate, but I just want to get some better performance\n var falseEventName = eventName + FALSE_STR;\n var trueEventName = eventName + TRUE_STR;\n var symbol = ZONE_SYMBOL_PREFIX + falseEventName;\n var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\n zoneSymbolEventNames$1[eventName] = {};\n zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;\n zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;\n symbolEventName = capture ? symbolCapture : symbol;\n }\n else {\n symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\n }\n var existingTasks = target[symbolEventName];\n var isExisting = false;\n if (existingTasks) {\n // already have task registered\n isExisting = true;\n if (checkDuplicate) {\n for (var i = 0; i < existingTasks.length; i++) {\n if (compare(existingTasks[i], delegate)) {\n // same callback, same capture, same event name, just return\n return;\n }\n }\n }\n }\n else {\n existingTasks = target[symbolEventName] = [];\n }\n var source;\n var constructorName = target.constructor['name'];\n var targetSource = globalSources[constructorName];\n if (targetSource) {\n source = targetSource[eventName];\n }\n if (!source) {\n source = constructorName + addSource + eventName;\n }\n // do not create a new object as task.data to pass those things\n // just use the global shared one\n taskData.options = options;\n if (once) {\n // if addEventListener with once options, we don't pass it to\n // native addEventListener, instead we keep the once setting\n // and handle ourselves.\n taskData.options.once = false;\n }\n taskData.target = target;\n taskData.capture = capture;\n taskData.eventName = eventName;\n taskData.isExisting = isExisting;\n var data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : null;\n // keep taskData into data to allow onScheduleEventTask to access the task information\n if (data) {\n data.taskData = taskData;\n }\n var task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);\n // should clear taskData.target to avoid memory leak\n // issue, https://github.com/angular/angular/issues/20442\n taskData.target = null;\n // need to clear up taskData because it is a global object\n if (data) {\n data.taskData = null;\n }\n // have to save those information to task in case\n // application may call task.zone.cancelTask() directly\n if (once) {\n options.once = true;\n }\n task.options = options;\n task.target = target;\n task.capture = capture;\n task.eventName = eventName;\n if (isHandleEvent) {\n // save original delegate for compare to check duplicate\n task.originalDelegate = delegate;\n }\n if (!prepend) {\n existingTasks.push(task);\n }\n else {\n existingTasks.unshift(task);\n }\n if (returnTarget) {\n return target;\n }\n };\n };\n proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);\n if (nativePrependEventListener) {\n proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);\n }\n proto[REMOVE_EVENT_LISTENER] = function () {\n var target = this || _global;\n var eventName = arguments[0];\n var options = arguments[2];\n var capture;\n if (options === undefined) {\n capture = false;\n }\n else if (options === true) {\n capture = true;\n }\n else if (options === false) {\n capture = false;\n }\n else {\n capture = options ? !!options.capture : false;\n }\n var delegate = arguments[1];\n if (!delegate) {\n return nativeRemoveEventListener.apply(this, arguments);\n }\n if (validateHandler &&\n !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {\n return;\n }\n var symbolEventNames = zoneSymbolEventNames$1[eventName];\n var symbolEventName;\n if (symbolEventNames) {\n symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\n }\n var existingTasks = symbolEventName && target[symbolEventName];\n if (existingTasks) {\n for (var i = 0; i < existingTasks.length; i++) {\n var existingTask = existingTasks[i];\n if (compare(existingTask, delegate)) {\n existingTasks.splice(i, 1);\n // set isRemoved to data for faster invokeTask check\n existingTask.isRemoved = true;\n if (existingTasks.length === 0) {\n // all tasks for the eventName + capture have gone,\n // remove globalZoneAwareCallback and remove the task cache from target\n existingTask.allRemoved = true;\n target[symbolEventName] = null;\n }\n existingTask.zone.cancelTask(existingTask);\n if (returnTarget) {\n return target;\n }\n return;\n }\n }\n }\n // issue 930, didn't find the event name or callback\n // from zone kept existingTasks, the callback maybe\n // added outside of zone, we need to call native removeEventListener\n // to try to remove it.\n return nativeRemoveEventListener.apply(this, arguments);\n };\n proto[LISTENERS_EVENT_LISTENER] = function () {\n var target = this || _global;\n var eventName = arguments[0];\n var listeners = [];\n var tasks = findEventTasks(target, eventName);\n for (var i = 0; i < tasks.length; i++) {\n var task = tasks[i];\n var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n listeners.push(delegate);\n }\n return listeners;\n };\n proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {\n var target = this || _global;\n var eventName = arguments[0];\n if (!eventName) {\n var keys = Object.keys(target);\n for (var i = 0; i < keys.length; i++) {\n var prop = keys[i];\n var match = EVENT_NAME_SYMBOL_REGX.exec(prop);\n var evtName = match && match[1];\n // in nodejs EventEmitter, removeListener event is\n // used for monitoring the removeListener call,\n // so just keep removeListener eventListener until\n // all other eventListeners are removed\n if (evtName && evtName !== 'removeListener') {\n this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);\n }\n }\n // remove removeListener listener finally\n this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');\n }\n else {\n var symbolEventNames = zoneSymbolEventNames$1[eventName];\n if (symbolEventNames) {\n var symbolEventName = symbolEventNames[FALSE_STR];\n var symbolCaptureEventName = symbolEventNames[TRUE_STR];\n var tasks = target[symbolEventName];\n var captureTasks = target[symbolCaptureEventName];\n if (tasks) {\n var removeTasks = tasks.slice();\n for (var i = 0; i < removeTasks.length; i++) {\n var task = removeTasks[i];\n var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\n }\n }\n if (captureTasks) {\n var removeTasks = captureTasks.slice();\n for (var i = 0; i < removeTasks.length; i++) {\n var task = removeTasks[i];\n var delegate = task.originalDelegate ? task.originalDelegate : task.callback;\n this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\n }\n }\n }\n }\n if (returnTarget) {\n return this;\n }\n };\n // for native toString patch\n attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);\n attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);\n if (nativeRemoveAllListeners) {\n attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);\n }\n if (nativeListeners) {\n attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);\n }\n return true;\n }\n var results = [];\n for (var i = 0; i < apis.length; i++) {\n results[i] = patchEventTargetMethods(apis[i], patchOptions);\n }\n return results;\n}\nfunction findEventTasks(target, eventName) {\n var foundTasks = [];\n for (var prop in target) {\n var match = EVENT_NAME_SYMBOL_REGX.exec(prop);\n var evtName = match && match[1];\n if (evtName && (!eventName || evtName === eventName)) {\n var tasks = target[prop];\n if (tasks) {\n for (var i = 0; i < tasks.length; i++) {\n foundTasks.push(tasks[i]);\n }\n }\n }\n }\n return foundTasks;\n}\nfunction patchEventPrototype(global, api) {\n var Event = global['Event'];\n if (Event && Event.prototype) {\n api.patchMethod(Event.prototype, 'stopImmediatePropagation', function (delegate) { return function (self, args) {\n self[IMMEDIATE_PROPAGATION_SYMBOL] = true;\n // we need to call the native stopImmediatePropagation\n // in case in some hybrid application, some part of\n // application will be controlled by zone, some are not\n delegate && delegate.apply(self, args);\n }; });\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\nvar taskSymbol = zoneSymbol('zoneTask');\nfunction patchTimer(window, setName, cancelName, nameSuffix) {\n var setNative = null;\n var clearNative = null;\n setName += nameSuffix;\n cancelName += nameSuffix;\n var tasksByHandleId = {};\n function scheduleTask(task) {\n var data = task.data;\n function timer() {\n try {\n task.invoke.apply(this, arguments);\n }\n finally {\n // issue-934, task will be cancelled\n // even it is a periodic task such as\n // setInterval\n if (!(task.data && task.data.isPeriodic)) {\n if (typeof data.handleId === 'number') {\n // in non-nodejs env, we remove timerId\n // from local cache\n delete tasksByHandleId[data.handleId];\n }\n else if (data.handleId) {\n // Node returns complex objects as handleIds\n // we remove task reference from timer object\n data.handleId[taskSymbol] = null;\n }\n }\n }\n }\n data.args[0] = timer;\n data.handleId = setNative.apply(window, data.args);\n return task;\n }\n function clearTask(task) {\n return clearNative(task.data.handleId);\n }\n setNative =\n patchMethod(window, setName, function (delegate) { return function (self, args) {\n if (typeof args[0] === 'function') {\n var options = {\n handleId: null,\n isPeriodic: nameSuffix === 'Interval',\n delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 : null,\n args: args\n };\n var task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);\n if (!task) {\n return task;\n }\n // Node.js must additionally support the ref and unref functions.\n var handle = task.data.handleId;\n if (typeof handle === 'number') {\n // for non nodejs env, we save handleId: task\n // mapping in local cache for clearTimeout\n tasksByHandleId[handle] = task;\n }\n else if (handle) {\n // for nodejs env, we save task\n // reference in timerId Object for clearTimeout\n handle[taskSymbol] = task;\n }\n // check whether handle is null, because some polyfill or browser\n // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame\n if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' &&\n typeof handle.unref === 'function') {\n task.ref = handle.ref.bind(handle);\n task.unref = handle.unref.bind(handle);\n }\n if (typeof handle === 'number' || handle) {\n return handle;\n }\n return task;\n }\n else {\n // cause an error by calling it directly.\n return delegate.apply(window, args);\n }\n }; });\n clearNative =\n patchMethod(window, cancelName, function (delegate) { return function (self, args) {\n var id = args[0];\n var task;\n if (typeof id === 'number') {\n // non nodejs env.\n task = tasksByHandleId[id];\n }\n else {\n // nodejs env.\n task = id && id[taskSymbol];\n // other environments.\n if (!task) {\n task = id;\n }\n }\n if (task && typeof task.type === 'string') {\n if (task.state !== 'notScheduled' &&\n (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {\n if (typeof id === 'number') {\n delete tasksByHandleId[id];\n }\n else if (id) {\n id[taskSymbol] = null;\n }\n // Do not cancel already canceled functions\n task.zone.cancelTask(task);\n }\n }\n else {\n // cause an error by calling it directly.\n delegate.apply(window, args);\n }\n }; });\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/*\n * This is necessary for Chrome and Chrome mobile, to enable\n * things like redefining `createdCallback` on an element.\n */\nvar _defineProperty = Object[zoneSymbol('defineProperty')] = Object.defineProperty;\nvar _getOwnPropertyDescriptor = Object[zoneSymbol('getOwnPropertyDescriptor')] =\n Object.getOwnPropertyDescriptor;\nvar _create = Object.create;\nvar unconfigurablesKey = zoneSymbol('unconfigurables');\nfunction propertyPatch() {\n Object.defineProperty = function (obj, prop, desc) {\n if (isUnconfigurable(obj, prop)) {\n throw new TypeError('Cannot assign to read only property \\'' + prop + '\\' of ' + obj);\n }\n var originalConfigurableFlag = desc.configurable;\n if (prop !== 'prototype') {\n desc = rewriteDescriptor(obj, prop, desc);\n }\n return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);\n };\n Object.defineProperties = function (obj, props) {\n Object.keys(props).forEach(function (prop) {\n Object.defineProperty(obj, prop, props[prop]);\n });\n return obj;\n };\n Object.create = function (obj, proto) {\n if (typeof proto === 'object' && !Object.isFrozen(proto)) {\n Object.keys(proto).forEach(function (prop) {\n proto[prop] = rewriteDescriptor(obj, prop, proto[prop]);\n });\n }\n return _create(obj, proto);\n };\n Object.getOwnPropertyDescriptor = function (obj, prop) {\n var desc = _getOwnPropertyDescriptor(obj, prop);\n if (isUnconfigurable(obj, prop)) {\n desc.configurable = false;\n }\n return desc;\n };\n}\nfunction _redefineProperty(obj, prop, desc) {\n var originalConfigurableFlag = desc.configurable;\n desc = rewriteDescriptor(obj, prop, desc);\n return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);\n}\nfunction isUnconfigurable(obj, prop) {\n return obj && obj[unconfigurablesKey] && obj[unconfigurablesKey][prop];\n}\nfunction rewriteDescriptor(obj, prop, desc) {\n // issue-927, if the desc is frozen, don't try to change the desc\n if (!Object.isFrozen(desc)) {\n desc.configurable = true;\n }\n if (!desc.configurable) {\n // issue-927, if the obj is frozen, don't try to set the desc to obj\n if (!obj[unconfigurablesKey] && !Object.isFrozen(obj)) {\n _defineProperty(obj, unconfigurablesKey, { writable: true, value: {} });\n }\n if (obj[unconfigurablesKey]) {\n obj[unconfigurablesKey][prop] = true;\n }\n }\n return desc;\n}\nfunction _tryDefineProperty(obj, prop, desc, originalConfigurableFlag) {\n try {\n return _defineProperty(obj, prop, desc);\n }\n catch (error) {\n if (desc.configurable) {\n // In case of errors, when the configurable flag was likely set by rewriteDescriptor(), let's\n // retry with the original flag value\n if (typeof originalConfigurableFlag == 'undefined') {\n delete desc.configurable;\n }\n else {\n desc.configurable = originalConfigurableFlag;\n }\n try {\n return _defineProperty(obj, prop, desc);\n }\n catch (error) {\n var descJson = null;\n try {\n descJson = JSON.stringify(desc);\n }\n catch (error) {\n descJson = desc.toString();\n }\n console.log(\"Attempting to configure '\" + prop + \"' with descriptor '\" + descJson + \"' on object '\" + obj + \"' and got error, giving up: \" + error);\n }\n }\n else {\n throw error;\n }\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// we have to patch the instance since the proto is non-configurable\nfunction apply(api, _global) {\n var WS = _global.WebSocket;\n // On Safari window.EventTarget doesn't exist so need to patch WS add/removeEventListener\n // On older Chrome, no need since EventTarget was already patched\n if (!_global.EventTarget) {\n patchEventTarget(_global, [WS.prototype]);\n }\n _global.WebSocket = function (x, y) {\n var socket = arguments.length > 1 ? new WS(x, y) : new WS(x);\n var proxySocket;\n var proxySocketProto;\n // Safari 7.0 has non-configurable own 'onmessage' and friends properties on the socket instance\n var onmessageDesc = ObjectGetOwnPropertyDescriptor(socket, 'onmessage');\n if (onmessageDesc && onmessageDesc.configurable === false) {\n proxySocket = ObjectCreate(socket);\n // socket have own property descriptor 'onopen', 'onmessage', 'onclose', 'onerror'\n // but proxySocket not, so we will keep socket as prototype and pass it to\n // patchOnProperties method\n proxySocketProto = socket;\n [ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR, 'send', 'close'].forEach(function (propName) {\n proxySocket[propName] = function () {\n var args = ArraySlice.call(arguments);\n if (propName === ADD_EVENT_LISTENER_STR || propName === REMOVE_EVENT_LISTENER_STR) {\n var eventName = args.length > 0 ? args[0] : undefined;\n if (eventName) {\n var propertySymbol = Zone.__symbol__('ON_PROPERTY' + eventName);\n socket[propertySymbol] = proxySocket[propertySymbol];\n }\n }\n return socket[propName].apply(socket, args);\n };\n });\n }\n else {\n // we can patch the real socket\n proxySocket = socket;\n }\n patchOnProperties(proxySocket, ['close', 'error', 'message', 'open'], proxySocketProto);\n return proxySocket;\n };\n var globalWebSocket = _global['WebSocket'];\n for (var prop in WS) {\n globalWebSocket[prop] = WS[prop];\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {globalThis}\n */\nvar globalEventHandlersEventNames = [\n 'abort',\n 'animationcancel',\n 'animationend',\n 'animationiteration',\n 'auxclick',\n 'beforeinput',\n 'blur',\n 'cancel',\n 'canplay',\n 'canplaythrough',\n 'change',\n 'compositionstart',\n 'compositionupdate',\n 'compositionend',\n 'cuechange',\n 'click',\n 'close',\n 'contextmenu',\n 'curechange',\n 'dblclick',\n 'drag',\n 'dragend',\n 'dragenter',\n 'dragexit',\n 'dragleave',\n 'dragover',\n 'drop',\n 'durationchange',\n 'emptied',\n 'ended',\n 'error',\n 'focus',\n 'focusin',\n 'focusout',\n 'gotpointercapture',\n 'input',\n 'invalid',\n 'keydown',\n 'keypress',\n 'keyup',\n 'load',\n 'loadstart',\n 'loadeddata',\n 'loadedmetadata',\n 'lostpointercapture',\n 'mousedown',\n 'mouseenter',\n 'mouseleave',\n 'mousemove',\n 'mouseout',\n 'mouseover',\n 'mouseup',\n 'mousewheel',\n 'orientationchange',\n 'pause',\n 'play',\n 'playing',\n 'pointercancel',\n 'pointerdown',\n 'pointerenter',\n 'pointerleave',\n 'pointerlockchange',\n 'mozpointerlockchange',\n 'webkitpointerlockerchange',\n 'pointerlockerror',\n 'mozpointerlockerror',\n 'webkitpointerlockerror',\n 'pointermove',\n 'pointout',\n 'pointerover',\n 'pointerup',\n 'progress',\n 'ratechange',\n 'reset',\n 'resize',\n 'scroll',\n 'seeked',\n 'seeking',\n 'select',\n 'selectionchange',\n 'selectstart',\n 'show',\n 'sort',\n 'stalled',\n 'submit',\n 'suspend',\n 'timeupdate',\n 'volumechange',\n 'touchcancel',\n 'touchmove',\n 'touchstart',\n 'touchend',\n 'transitioncancel',\n 'transitionend',\n 'waiting',\n 'wheel'\n];\nvar documentEventNames = [\n 'afterscriptexecute', 'beforescriptexecute', 'DOMContentLoaded', 'fullscreenchange',\n 'mozfullscreenchange', 'webkitfullscreenchange', 'msfullscreenchange', 'fullscreenerror',\n 'mozfullscreenerror', 'webkitfullscreenerror', 'msfullscreenerror', 'readystatechange',\n 'visibilitychange'\n];\nvar windowEventNames = [\n 'absolutedeviceorientation',\n 'afterinput',\n 'afterprint',\n 'appinstalled',\n 'beforeinstallprompt',\n 'beforeprint',\n 'beforeunload',\n 'devicelight',\n 'devicemotion',\n 'deviceorientation',\n 'deviceorientationabsolute',\n 'deviceproximity',\n 'hashchange',\n 'languagechange',\n 'message',\n 'mozbeforepaint',\n 'offline',\n 'online',\n 'paint',\n 'pageshow',\n 'pagehide',\n 'popstate',\n 'rejectionhandled',\n 'storage',\n 'unhandledrejection',\n 'unload',\n 'userproximity',\n 'vrdisplyconnected',\n 'vrdisplaydisconnected',\n 'vrdisplaypresentchange'\n];\nvar htmlElementEventNames = [\n 'beforecopy', 'beforecut', 'beforepaste', 'copy', 'cut', 'paste', 'dragstart', 'loadend',\n 'animationstart', 'search', 'transitionrun', 'transitionstart', 'webkitanimationend',\n 'webkitanimationiteration', 'webkitanimationstart', 'webkittransitionend'\n];\nvar mediaElementEventNames = ['encrypted', 'waitingforkey', 'msneedkey', 'mozinterruptbegin', 'mozinterruptend'];\nvar ieElementEventNames = [\n 'activate',\n 'afterupdate',\n 'ariarequest',\n 'beforeactivate',\n 'beforedeactivate',\n 'beforeeditfocus',\n 'beforeupdate',\n 'cellchange',\n 'controlselect',\n 'dataavailable',\n 'datasetchanged',\n 'datasetcomplete',\n 'errorupdate',\n 'filterchange',\n 'layoutcomplete',\n 'losecapture',\n 'move',\n 'moveend',\n 'movestart',\n 'propertychange',\n 'resizeend',\n 'resizestart',\n 'rowenter',\n 'rowexit',\n 'rowsdelete',\n 'rowsinserted',\n 'command',\n 'compassneedscalibration',\n 'deactivate',\n 'help',\n 'mscontentzoom',\n 'msmanipulationstatechanged',\n 'msgesturechange',\n 'msgesturedoubletap',\n 'msgestureend',\n 'msgesturehold',\n 'msgesturestart',\n 'msgesturetap',\n 'msgotpointercapture',\n 'msinertiastart',\n 'mslostpointercapture',\n 'mspointercancel',\n 'mspointerdown',\n 'mspointerenter',\n 'mspointerhover',\n 'mspointerleave',\n 'mspointermove',\n 'mspointerout',\n 'mspointerover',\n 'mspointerup',\n 'pointerout',\n 'mssitemodejumplistitemremoved',\n 'msthumbnailclick',\n 'stop',\n 'storagecommit'\n];\nvar webglEventNames = ['webglcontextrestored', 'webglcontextlost', 'webglcontextcreationerror'];\nvar formEventNames = ['autocomplete', 'autocompleteerror'];\nvar detailEventNames = ['toggle'];\nvar frameEventNames = ['load'];\nvar frameSetEventNames = ['blur', 'error', 'focus', 'load', 'resize', 'scroll', 'messageerror'];\nvar marqueeEventNames = ['bounce', 'finish', 'start'];\nvar XMLHttpRequestEventNames = [\n 'loadstart', 'progress', 'abort', 'error', 'load', 'progress', 'timeout', 'loadend',\n 'readystatechange'\n];\nvar IDBIndexEventNames = ['upgradeneeded', 'complete', 'abort', 'success', 'error', 'blocked', 'versionchange', 'close'];\nvar websocketEventNames = ['close', 'error', 'open', 'message'];\nvar workerEventNames = ['error', 'message'];\nvar eventNames = globalEventHandlersEventNames.concat(webglEventNames, formEventNames, detailEventNames, documentEventNames, windowEventNames, htmlElementEventNames, ieElementEventNames);\nfunction filterProperties(target, onProperties, ignoreProperties) {\n if (!ignoreProperties) {\n return onProperties;\n }\n var tip = ignoreProperties.filter(function (ip) { return ip.target === target; });\n if (!tip || tip.length === 0) {\n return onProperties;\n }\n var targetIgnoreProperties = tip[0].ignoreProperties;\n return onProperties.filter(function (op) { return targetIgnoreProperties.indexOf(op) === -1; });\n}\nfunction patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {\n // check whether target is available, sometimes target will be undefined\n // because different browser or some 3rd party plugin.\n if (!target) {\n return;\n }\n var filteredProperties = filterProperties(target, onProperties, ignoreProperties);\n patchOnProperties(target, filteredProperties, prototype);\n}\nfunction propertyDescriptorPatch(api, _global) {\n if (isNode && !isMix) {\n return;\n }\n var supportsWebSocket = typeof WebSocket !== 'undefined';\n if (canPatchViaPropertyDescriptor()) {\n var ignoreProperties = _global.__Zone_ignore_on_properties;\n // for browsers that we can patch the descriptor: Chrome & Firefox\n if (isBrowser) {\n var internalWindow = window;\n // in IE/Edge, onProp not exist in window object, but in WindowPrototype\n // so we need to pass WindowPrototype to check onProp exist or not\n patchFilteredProperties(internalWindow, eventNames.concat(['messageerror']), ignoreProperties, ObjectGetPrototypeOf(internalWindow));\n patchFilteredProperties(Document.prototype, eventNames, ignoreProperties);\n if (typeof internalWindow['SVGElement'] !== 'undefined') {\n patchFilteredProperties(internalWindow['SVGElement'].prototype, eventNames, ignoreProperties);\n }\n patchFilteredProperties(Element.prototype, eventNames, ignoreProperties);\n patchFilteredProperties(HTMLElement.prototype, eventNames, ignoreProperties);\n patchFilteredProperties(HTMLMediaElement.prototype, mediaElementEventNames, ignoreProperties);\n patchFilteredProperties(HTMLFrameSetElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\n patchFilteredProperties(HTMLBodyElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\n patchFilteredProperties(HTMLFrameElement.prototype, frameEventNames, ignoreProperties);\n patchFilteredProperties(HTMLIFrameElement.prototype, frameEventNames, ignoreProperties);\n var HTMLMarqueeElement_1 = internalWindow['HTMLMarqueeElement'];\n if (HTMLMarqueeElement_1) {\n patchFilteredProperties(HTMLMarqueeElement_1.prototype, marqueeEventNames, ignoreProperties);\n }\n var Worker_1 = internalWindow['Worker'];\n if (Worker_1) {\n patchFilteredProperties(Worker_1.prototype, workerEventNames, ignoreProperties);\n }\n }\n patchFilteredProperties(XMLHttpRequest.prototype, XMLHttpRequestEventNames, ignoreProperties);\n var XMLHttpRequestEventTarget = _global['XMLHttpRequestEventTarget'];\n if (XMLHttpRequestEventTarget) {\n patchFilteredProperties(XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype, XMLHttpRequestEventNames, ignoreProperties);\n }\n if (typeof IDBIndex !== 'undefined') {\n patchFilteredProperties(IDBIndex.prototype, IDBIndexEventNames, ignoreProperties);\n patchFilteredProperties(IDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\n patchFilteredProperties(IDBOpenDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\n patchFilteredProperties(IDBDatabase.prototype, IDBIndexEventNames, ignoreProperties);\n patchFilteredProperties(IDBTransaction.prototype, IDBIndexEventNames, ignoreProperties);\n patchFilteredProperties(IDBCursor.prototype, IDBIndexEventNames, ignoreProperties);\n }\n if (supportsWebSocket) {\n patchFilteredProperties(WebSocket.prototype, websocketEventNames, ignoreProperties);\n }\n }\n else {\n // Safari, Android browsers (Jelly Bean)\n patchViaCapturingAllTheEvents();\n patchClass('XMLHttpRequest');\n if (supportsWebSocket) {\n apply(api, _global);\n }\n }\n}\nfunction canPatchViaPropertyDescriptor() {\n if ((isBrowser || isMix) && !ObjectGetOwnPropertyDescriptor(HTMLElement.prototype, 'onclick') &&\n typeof Element !== 'undefined') {\n // WebKit https://bugs.webkit.org/show_bug.cgi?id=134364\n // IDL interface attributes are not configurable\n var desc = ObjectGetOwnPropertyDescriptor(Element.prototype, 'onclick');\n if (desc && !desc.configurable)\n return false;\n }\n var ON_READY_STATE_CHANGE = 'onreadystatechange';\n var XMLHttpRequestPrototype = XMLHttpRequest.prototype;\n var xhrDesc = ObjectGetOwnPropertyDescriptor(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE);\n // add enumerable and configurable here because in opera\n // by default XMLHttpRequest.prototype.onreadystatechange is undefined\n // without adding enumerable and configurable will cause onreadystatechange\n // non-configurable\n // and if XMLHttpRequest.prototype.onreadystatechange is undefined,\n // we should set a real desc instead a fake one\n if (xhrDesc) {\n ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {\n enumerable: true,\n configurable: true,\n get: function () {\n return true;\n }\n });\n var req = new XMLHttpRequest();\n var result = !!req.onreadystatechange;\n // restore original desc\n ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, xhrDesc || {});\n return result;\n }\n else {\n var SYMBOL_FAKE_ONREADYSTATECHANGE_1 = zoneSymbol('fake');\n ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {\n enumerable: true,\n configurable: true,\n get: function () {\n return this[SYMBOL_FAKE_ONREADYSTATECHANGE_1];\n },\n set: function (value) {\n this[SYMBOL_FAKE_ONREADYSTATECHANGE_1] = value;\n }\n });\n var req = new XMLHttpRequest();\n var detectFunc = function () { };\n req.onreadystatechange = detectFunc;\n var result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;\n req.onreadystatechange = null;\n return result;\n }\n}\nvar unboundKey = zoneSymbol('unbound');\n// Whenever any eventListener fires, we check the eventListener target and all parents\n// for `onwhatever` properties and replace them with zone-bound functions\n// - Chrome (for now)\nfunction patchViaCapturingAllTheEvents() {\n var _loop_1 = function (i) {\n var property = eventNames[i];\n var onproperty = 'on' + property;\n self.addEventListener(property, function (event) {\n var elt = event.target, bound, source;\n if (elt) {\n source = elt.constructor['name'] + '.' + onproperty;\n }\n else {\n source = 'unknown.' + onproperty;\n }\n while (elt) {\n if (elt[onproperty] && !elt[onproperty][unboundKey]) {\n bound = wrapWithCurrentZone(elt[onproperty], source);\n bound[unboundKey] = elt[onproperty];\n elt[onproperty] = bound;\n }\n elt = elt.parentElement;\n }\n }, true);\n };\n for (var i = 0; i < eventNames.length; i++) {\n _loop_1(i);\n }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction eventTargetPatch(_global, api) {\n var WTF_ISSUE_555 = 'Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video';\n var NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex,WebSocket'\n .split(',');\n var EVENT_TARGET = 'EventTarget';\n var apis = [];\n var isWtf = _global['wtf'];\n var WTF_ISSUE_555_ARRAY = WTF_ISSUE_555.split(',');\n if (isWtf) {\n // Workaround for: https://github.com/google/tracing-framework/issues/555\n apis = WTF_ISSUE_555_ARRAY.map(function (v) { return 'HTML' + v + 'Element'; }).concat(NO_EVENT_TARGET);\n }\n else if (_global[EVENT_TARGET]) {\n apis.push(EVENT_TARGET);\n }\n else {\n // Note: EventTarget is not available in all browsers,\n // if it's not available, we instead patch the APIs in the IDL that inherit from EventTarget\n apis = NO_EVENT_TARGET;\n }\n var isDisableIECheck = _global['__Zone_disable_IE_check'] || false;\n var isEnableCrossContextCheck = _global['__Zone_enable_cross_context_check'] || false;\n var ieOrEdge = isIEOrEdge();\n var ADD_EVENT_LISTENER_SOURCE = '.addEventListener:';\n var FUNCTION_WRAPPER = '[object FunctionWrapper]';\n var BROWSER_TOOLS = 'function __BROWSERTOOLS_CONSOLE_SAFEFUNC() { [native code] }';\n // predefine all __zone_symbol__ + eventName + true/false string\n for (var i = 0; i < eventNames.length; i++) {\n var eventName = eventNames[i];\n var falseEventName = eventName + FALSE_STR;\n var trueEventName = eventName + TRUE_STR;\n var symbol = ZONE_SYMBOL_PREFIX + falseEventName;\n var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\n zoneSymbolEventNames$1[eventName] = {};\n zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;\n zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;\n }\n // predefine all task.source string\n for (var i = 0; i < WTF_ISSUE_555.length; i++) {\n var target = WTF_ISSUE_555_ARRAY[i];\n var targets = globalSources[target] = {};\n for (var j = 0; j < eventNames.length; j++) {\n var eventName = eventNames[j];\n targets[eventName] = target + ADD_EVENT_LISTENER_SOURCE + eventName;\n }\n }\n var checkIEAndCrossContext = function (nativeDelegate, delegate, target, args) {\n if (!isDisableIECheck && ieOrEdge) {\n if (isEnableCrossContextCheck) {\n try {\n var testString = delegate.toString();\n if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {\n nativeDelegate.apply(target, args);\n return false;\n }\n }\n catch (error) {\n nativeDelegate.apply(target, args);\n return false;\n }\n }\n else {\n var testString = delegate.toString();\n if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {\n nativeDelegate.apply(target, args);\n return false;\n }\n }\n }\n else if (isEnableCrossContextCheck) {\n try {\n delegate.toString();\n }\n catch (error) {\n nativeDelegate.apply(target, args);\n return false;\n }\n }\n return true;\n };\n var apiTypes = [];\n for (var i = 0; i < apis.length; i++) {\n var type = _global[apis[i]];\n apiTypes.push(type && type.prototype);\n }\n // vh is validateHandler to check event handler\n // is valid or not(for security check)\n patchEventTarget(_global, apiTypes, { vh: checkIEAndCrossContext });\n api.patchEventTarget = patchEventTarget;\n return true;\n}\nfunction patchEvent(global, api) {\n patchEventPrototype(global, api);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction registerElementPatch(_global) {\n if ((!isBrowser && !isMix) || !('registerElement' in _global.document)) {\n return;\n }\n var _registerElement = document.registerElement;\n var callbacks = ['createdCallback', 'attachedCallback', 'detachedCallback', 'attributeChangedCallback'];\n document.registerElement = function (name, opts) {\n if (opts && opts.prototype) {\n callbacks.forEach(function (callback) {\n var source = 'Document.registerElement::' + callback;\n var prototype = opts.prototype;\n if (prototype.hasOwnProperty(callback)) {\n var descriptor = ObjectGetOwnPropertyDescriptor(prototype, callback);\n if (descriptor && descriptor.value) {\n descriptor.value = wrapWithCurrentZone(descriptor.value, source);\n _redefineProperty(opts.prototype, callback, descriptor);\n }\n else {\n prototype[callback] = wrapWithCurrentZone(prototype[callback], source);\n }\n }\n else if (prototype[callback]) {\n prototype[callback] = wrapWithCurrentZone(prototype[callback], source);\n }\n });\n }\n return _registerElement.call(document, name, opts);\n };\n attachOriginToPatched(document.registerElement, _registerElement);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @fileoverview\n * @suppress {missingRequire}\n */\nZone.__load_patch('util', function (global, Zone, api) {\n api.patchOnProperties = patchOnProperties;\n api.patchMethod = patchMethod;\n api.bindArguments = bindArguments;\n});\nZone.__load_patch('timers', function (global) {\n var set = 'set';\n var clear = 'clear';\n patchTimer(global, set, clear, 'Timeout');\n patchTimer(global, set, clear, 'Interval');\n patchTimer(global, set, clear, 'Immediate');\n});\nZone.__load_patch('requestAnimationFrame', function (global) {\n patchTimer(global, 'request', 'cancel', 'AnimationFrame');\n patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');\n patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');\n});\nZone.__load_patch('blocking', function (global, Zone) {\n var blockingMethods = ['alert', 'prompt', 'confirm'];\n for (var i = 0; i < blockingMethods.length; i++) {\n var name_1 = blockingMethods[i];\n patchMethod(global, name_1, function (delegate, symbol, name) {\n return function (s, args) {\n return Zone.current.run(delegate, global, args, name);\n };\n });\n }\n});\nZone.__load_patch('EventTarget', function (global, Zone, api) {\n // load blackListEvents from global\n var SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');\n if (global[SYMBOL_BLACK_LISTED_EVENTS]) {\n Zone[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_BLACK_LISTED_EVENTS];\n }\n patchEvent(global, api);\n eventTargetPatch(global, api);\n // patch XMLHttpRequestEventTarget's addEventListener/removeEventListener\n var XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];\n if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {\n api.patchEventTarget(global, [XMLHttpRequestEventTarget.prototype]);\n }\n patchClass('MutationObserver');\n patchClass('WebKitMutationObserver');\n patchClass('IntersectionObserver');\n patchClass('FileReader');\n});\nZone.__load_patch('on_property', function (global, Zone, api) {\n propertyDescriptorPatch(api, global);\n propertyPatch();\n registerElementPatch(global);\n});\nZone.__load_patch('canvas', function (global) {\n var HTMLCanvasElement = global['HTMLCanvasElement'];\n if (typeof HTMLCanvasElement !== 'undefined' && HTMLCanvasElement.prototype &&\n HTMLCanvasElement.prototype.toBlob) {\n patchMacroTask(HTMLCanvasElement.prototype, 'toBlob', function (self, args) {\n return { name: 'HTMLCanvasElement.toBlob', target: self, cbIdx: 0, args: args };\n });\n }\n});\nZone.__load_patch('XHR', function (global, Zone) {\n // Treat XMLHttpRequest as a macrotask.\n patchXHR(global);\n var XHR_TASK = zoneSymbol('xhrTask');\n var XHR_SYNC = zoneSymbol('xhrSync');\n var XHR_LISTENER = zoneSymbol('xhrListener');\n var XHR_SCHEDULED = zoneSymbol('xhrScheduled');\n var XHR_URL = zoneSymbol('xhrURL');\n function patchXHR(window) {\n var XMLHttpRequestPrototype = XMLHttpRequest.prototype;\n function findPendingTask(target) {\n return target[XHR_TASK];\n }\n var oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n var oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n if (!oriAddListener) {\n var XMLHttpRequestEventTarget = window['XMLHttpRequestEventTarget'];\n if (XMLHttpRequestEventTarget) {\n var XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget.prototype;\n oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n }\n }\n var READY_STATE_CHANGE = 'readystatechange';\n var SCHEDULED = 'scheduled';\n function scheduleTask(task) {\n XMLHttpRequest[XHR_SCHEDULED] = false;\n var data = task.data;\n var target = data.target;\n // remove existing event listener\n var listener = target[XHR_LISTENER];\n if (!oriAddListener) {\n oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];\n oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\n }\n if (listener) {\n oriRemoveListener.call(target, READY_STATE_CHANGE, listener);\n }\n var newListener = target[XHR_LISTENER] = function () {\n if (target.readyState === target.DONE) {\n // sometimes on some browsers XMLHttpRequest will fire onreadystatechange with\n // readyState=4 multiple times, so we need to check task state here\n if (!data.aborted && XMLHttpRequest[XHR_SCHEDULED] && task.state === SCHEDULED) {\n task.invoke();\n }\n }\n };\n oriAddListener.call(target, READY_STATE_CHANGE, newListener);\n var storedTask = target[XHR_TASK];\n if (!storedTask) {\n target[XHR_TASK] = task;\n }\n sendNative.apply(target, data.args);\n XMLHttpRequest[XHR_SCHEDULED] = true;\n return task;\n }\n function placeholderCallback() { }\n function clearTask(task) {\n var data = task.data;\n // Note - ideally, we would call data.target.removeEventListener here, but it's too late\n // to prevent it from firing. So instead, we store info for the event listener.\n data.aborted = true;\n return abortNative.apply(data.target, data.args);\n }\n var openNative = patchMethod(XMLHttpRequestPrototype, 'open', function () { return function (self, args) {\n self[XHR_SYNC] = args[2] == false;\n self[XHR_URL] = args[1];\n return openNative.apply(self, args);\n }; });\n var XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';\n var sendNative = patchMethod(XMLHttpRequestPrototype, 'send', function () { return function (self, args) {\n if (self[XHR_SYNC]) {\n // if the XHR is sync there is no task to schedule, just execute the code.\n return sendNative.apply(self, args);\n }\n else {\n var options = {\n target: self,\n url: self[XHR_URL],\n isPeriodic: false,\n delay: null,\n args: args,\n aborted: false\n };\n return scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);\n }\n }; });\n var abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', function () { return function (self) {\n var task = findPendingTask(self);\n if (task && typeof task.type == 'string') {\n // If the XHR has already completed, do nothing.\n // If the XHR has already been aborted, do nothing.\n // Fix #569, call abort multiple times before done will cause\n // macroTask task count be negative number\n if (task.cancelFn == null || (task.data && task.data.aborted)) {\n return;\n }\n task.zone.cancelTask(task);\n }\n // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no\n // task\n // to cancel. Do nothing.\n }; });\n }\n});\nZone.__load_patch('geolocation', function (global) {\n /// GEO_LOCATION\n if (global['navigator'] && global['navigator'].geolocation) {\n patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);\n }\n});\nZone.__load_patch('PromiseRejectionEvent', function (global, Zone) {\n // handle unhandled promise rejection\n function findPromiseRejectionHandler(evtName) {\n return function (e) {\n var eventTasks = findEventTasks(global, evtName);\n eventTasks.forEach(function (eventTask) {\n // windows has added unhandledrejection event listener\n // trigger the event listener\n var PromiseRejectionEvent = global['PromiseRejectionEvent'];\n if (PromiseRejectionEvent) {\n var evt = new PromiseRejectionEvent(evtName, { promise: e.promise, reason: e.rejection });\n eventTask.invoke(evt);\n }\n });\n };\n }\n if (global['PromiseRejectionEvent']) {\n Zone[zoneSymbol('unhandledPromiseRejectionHandler')] =\n findPromiseRejectionHandler('unhandledrejection');\n Zone[zoneSymbol('rejectionHandledHandler')] =\n findPromiseRejectionHandler('rejectionhandled');\n }\n});\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n})));\n","/**\n * This file includes polyfills needed by Angular and is loaded before the app.\n * You can add your own extra polyfills to this file.\n *\n * This file is divided into 2 sections:\n * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.\n * 2. Application imports. Files imported after ZoneJS that should be loaded before your main\n * file.\n *\n * The current setup is for so-called \"evergreen\" browsers; the last versions of browsers that\n * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),\n * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.\n *\n * Learn more in https://angular.io/guide/browser-support\n */\n\n/***************************************************************************************************\n * BROWSER POLYFILLS\n */\n\n/** IE9, IE10 and IE11 requires all of the following polyfills. **/\n// import 'core-js/es6/symbol';\n// import 'core-js/es6/object';\n// import 'core-js/es6/function';\n// import 'core-js/es6/parse-int';\n// import 'core-js/es6/parse-float';\n// import 'core-js/es6/number';\n// import 'core-js/es6/math';\n// import 'core-js/es6/string';\n// import 'core-js/es6/date';\n// import 'core-js/es6/array';\n// import 'core-js/es6/regexp';\n// import 'core-js/es6/map';\n// import 'core-js/es6/weak-map';\n// import 'core-js/es6/set';\n\n/**\n * If the application will be indexed by Google Search, the following is required.\n * Googlebot uses a renderer based on Chrome 41.\n * https://developers.google.com/search/docs/guides/rendering\n **/\n// import 'core-js/es6/array';\n\n/** IE10 and IE11 requires the following for NgClass support on SVG elements */\n// import 'classlist.js'; // Run `npm install --save classlist.js`.\n\n/** IE10 and IE11 requires the following for the Reflect API. */\n// import 'core-js/es6/reflect';\n\n/**\n * Web Animations `@angular/platform-browser/animations`\n * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.\n * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).\n **/\n// import 'web-animations-js'; // Run `npm install --save web-animations-js`.\n\n/**\n * By default, zone.js will patch all possible macroTask and DomEvents\n * user can disable parts of macroTask/DomEvents patch by setting following flags\n */\n\n // (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame\n // (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick\n // (window as any).__zone_symbol__BLACK_LISTED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames\n\n /*\n * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js\n * with the following flag, it will bypass `zone.js` patch for IE/Edge\n */\n// (window as any).__Zone_enable_cross_context_check = true;\n\n/***************************************************************************************************\n * Zone JS is required by default for Angular itself.\n */\nimport 'zone.js/dist/zone'; // Included with Angular CLI.\n\n\n\n/***************************************************************************************************\n * APPLICATION IMPORTS\n */\nimport 'hammerjs';"],"sourceRoot":""}