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Country",multiple:!0,maxHeight:"400px",options:{advanced:e("./countries.js"),simple:e("./simpleCountries.js"),simpler:[{label:"This is Foo",value:"foo"},{label:"This is Bar",value:"bar"},{label:"This is Baz",value:"baz"}]},optionType:"advanced"}}},t.exports.__esModule&&(t.exports=t.exports["default"]),("function"==typeof t.exports?t.exports.options:t.exports).template="

Vue Select

A simple component that provides similar functionality to Select2 without the overhead of jQuery.

View on GitHub
{{ select | json }}

Live Edit play around with the above vue-select



The options property is watched for changes, and the value is reset anytime the options change. This is useful if you have multiple selection boxes that depend on its ancestors values.
Equivalent to the multiple attribute to a <select>. You'll want to clear any selections you have made before changing this option. It's not one that should be changed after render.
Limit the height of the dropdown menu.
Equivalent to the placeholder attribute.

Install & Usage

Install from GitHub using NPM
  <template>\n    <div id=\"myApp\">\n      <v-select :value.sync=\"selected\" :options=\"options\"></v-select>\n    </div>\n  </template>\n\n  <script>\n    import vSelect from 'vue-select'\n    export default {\n      components: {vSelect},\n\n      data() {\n        return {\n          selected: null,\n          options: ['foo','bar','baz']\n        }\n      }\n    }\n  </script>\n

Parameters

  • value Represents the currently selected value(s)
    • type: String
    • required: true
  • options An array of strings or objects to be used as dropdown choices. Supports ['foo','bar'] & [{label: 'Foo', value: 'foo'}]. When using the [{}] syntax, the objects in the array can have as many properties as you need, as long as the object contains value and label keys.
    • type: Array
    • default: []
  • maxHeight Limit the height of the dropdown menu
    • type: String
    • default: '400px'
  • searchable Toggle filtering of options
    • type: Boolean
    • default: true
  • multiple Equivalent to multiple attribute on a <select>
    • type: Boolean
    • default: true
  • placeholder Equivalent to placeholder attribute on an <input>
    • type: String
    • default: ''
  • transition Vue transition prop applied to the .dropdown-menu
    • type: Boolean
    • default: true
"},{"./components/Select.vue":36,"./countries.js":37,"./simpleCountries.js":39,vue:33,"vueify-insert-css":34}],36:[function(e,t,n){function i(e){return e&&e.__esModule?e:{"default":e}}e("vueify-insert-css").insert(".dropdown[_v-4622d1b0]{position:relative}.open-indicator[_v-4622d1b0]{position:absolute;top:10px;right:10px;display:inline-block;cursor:pointer;pointer-events:all;-webkit-transition:all .15s cubic-bezier(1,-.115,.975,.855);transition:all .15s cubic-bezier(1,-.115,.975,.855);-webkit-transition-timing-function:cubic-bezier(1,-.115,.975,.855);transition-timing-function:cubic-bezier(1,-.115,.975,.855)}.open .open-indicator[_v-4622d1b0]{-webkit-transform:rotate(180deg);transform:rotate(180deg)}.dropdown-toggle[_v-4622d1b0]{display:block;padding:0;background:none;border:1px solid rgba(60,60,60,.26);border-radius:4px;white-space:normal}.searchable .dropdown-toggle[_v-4622d1b0]{cursor:text}.open .dropdown-toggle[_v-4622d1b0]{border-bottom:none;border-bottom-left-radius:0;border-bottom-right-radius:0}.dropdown-menu[_v-4622d1b0]{margin:0;width:100%;overflow-y:scroll;border-top:none;border-top-left-radius:0;border-top-right-radius:0}.alert[_v-4622d1b0]{height:26px;margin:4px 1px 0 3px;padding:0 .25em;float:left;line-height:1.7em}.alert .close[_v-4622d1b0]{float:none;margin-right:0;font-size:20px}input[type=search][_v-4622d1b0],input[type=search][_v-4622d1b0]:focus{display:inline-block;border:none;outline:none;margin:0;width:10em;max-width:100%;background:none;position:relative;box-shadow:none;float:left;clear:none}input[type=search][_v-4622d1b0]:disabled,li a[_v-4622d1b0]{cursor:pointer}.active a[_v-4622d1b0]{background:rgba(50,50,50,.1);color:#333}.highlight a[_v-4622d1b0],li:hover a[_v-4622d1b0]{background:#337ab7;color:#fff}");Object.defineProperty(n,"__esModule",{value:!0});var a=e("babel-runtime/helpers/typeof"),r=i(a);n["default"]={props:{value:{twoway:!0,required:!0},options:{type:Array,"default":function(){return[]}},maxHeight:{type:String,"default":"400px"},searchable:{type:Boolean,"default":!0},multiple:{type:Boolean,"default":!1},placeholder:{type:String,"default":""},transition:{type:String,"default":"expand"},clearSearchOnSelect:{type:Boolean,"default":!0}},data:function(){return{search:"",open:!1,typeAheadPointer:-1}},watch:{options:function(){this.$set("value",this.multiple?[]:null)},multiple:function(e){this.$set("value",e?[]:null)}},methods:{select:function(e){this.isOptionSelected(e)?this.multiple&&this.value.$remove(e):this.multiple?this.value?this.value.push(e):this.$set("value",[e]):this.value=e,this.multiple||(this.open=!this.open),this.clearSearchOnSelect&&(this.search="")},toggleDropdown:function(e){e.target!==this.$els.openIndicator&&e.target!==this.$els.search&&e.target!==this.$els.toggle&&e.target!==this.$el||(this.open?this.$els.search.blur():(this.open=!0,this.$els.search.focus()))},isOptionSelected:function(e){return this.multiple&&this.value?-1!==this.value.indexOf(e):this.value===e},getOptionValue:function(e){return"object"===("undefined"==typeof e?"undefined":(0,r["default"])(e))&&e.value?e.value:e},getOptionLabel:function(e){return"object"===("undefined"==typeof e?"undefined":(0,r["default"])(e))&&e.label?e.label:e},typeAheadUp:function(){this.typeAheadPointer>0&&this.typeAheadPointer--},typeAheadDown:function(){this.typeAheadPointer
  • {{ getOptionLabel(option) }}
  • Sorry, no matching options.'},{"babel-runtime/helpers/typeof":2,"vueify-insert-css":34}],37:[function(e,t,n){"use strict";t.exports=[{value:"AF",label:"Afghanistan"},{value:"AX",label:"Åland Islands"},{value:"AL",label:"Albania"},{value:"DZ",label:"Algeria"},{value:"AS",label:"American Samoa"},{value:"AD",label:"Andorra"},{value:"AO",label:"Angola"},{value:"AI",label:"Anguilla"},{value:"AQ",label:"Antarctica"},{value:"AG",label:"Antigua and Barbuda"},{value:"AR",label:"Argentina"},{value:"AM",label:"Armenia"},{value:"AW",label:"Aruba"},{value:"AU",label:"Australia"},{value:"AT",label:"Austria"},{value:"AZ",label:"Azerbaijan"},{value:"BS",label:"Bahamas"},{value:"BH",label:"Bahrain"},{value:"BD",label:"Bangladesh"},{value:"BB",label:"Barbados"},{value:"BY",label:"Belarus"},{value:"BE",label:"Belgium"},{value:"BZ",label:"Belize"},{value:"BJ",label:"Benin"},{value:"BM",label:"Bermuda"},{value:"BT",label:"Bhutan"},{value:"BO",label:"Bolivia"},{value:"BA",label:"Bosnia and 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of"},{value:"TH",label:"Thailand"},{value:"TL",label:"Timor-leste"},{value:"TG",label:"Togo"},{value:"TK",label:"Tokelau"},{value:"TO",label:"Tonga"},{value:"TT",label:"Trinidad and Tobago"},{value:"TN",label:"Tunisia"},{value:"TR",label:"Turkey"},{value:"TM",label:"Turkmenistan"},{value:"TC",label:"Turks and Caicos Islands"},{value:"TV",label:"Tuvalu"},{value:"UG",label:"Uganda"},{value:"UA",label:"Ukraine"},{value:"AE",label:"United Arab Emirates"},{value:"GB",label:"United Kingdom"},{value:"US",label:"United States"},{value:"UM",label:"United States Minor Outlying Islands"},{value:"UY",label:"Uruguay"},{value:"UZ",label:"Uzbekistan"},{value:"VU",label:"Vanuatu"},{value:"VE",label:"Venezuela"},{value:"VN",label:"Viet Nam"},{value:"VG",label:"Virgin Islands, British"},{value:"VI",label:"Virgin Islands, U.S."},{value:"WF",label:"Wallis and Futuna"},{value:"EH",label:"Western Sahara"},{value:"YE",label:"Yemen"},{value:"ZM",label:"Zambia"},{value:"ZW",label:"Zimbabwe"}]},{}],38:[function(e,t,n){"use strict";function i(e){return e&&e.__esModule?e:{"default":e}}var a=e("vue"),r=i(a),o=e("./App.vue"),s=i(o);r["default"].transition("bounce",{enterClass:"bounceInLeft",leaveClass:"bounceOutRight"}),r["default"].transition("zoom",{enterClass:"zoomIn",leaveClass:"zoomOut"}),r["default"].transition("fade",{enterClass:"fadeIn",leaveClass:"fadeOut"}),r["default"].transition("fadeInDownBig",{enterClass:"fadeInDownBig",leaveClass:"fadeOutDownBig"}),r["default"].transition("slideInDown",{enterClass:"slideInDown",leaveClass:"slideOutDown"}),r["default"].transition("slideUp",{enterClass:"fadeInDown",leaveClass:"fadeOutUp"}),r["default"].transition("lightSpeed",{enterClass:"lightSpeedIn",leaveClass:"lightSpeedOut"}),r["default"].transition("flipX",{enterClass:"flipInX",leaveClass:"flipOutX"}),r["default"].transition("flipY",{enterClass:"flipInY",leaveClass:"flipOutY"}),r["default"].transition("rotate",{enterClass:"rotateIn",leaveClass:"rotateOut"}),new r["default"]({el:"body",components:{App:s["default"]}})},{"./App.vue":35,vue:33}],39:[function(e,t,n){"use 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+},{"./$":21}],12:[function(require,module,exports){ +var global = require('./$.global') + , core = require('./$.core') + , ctx = require('./$.ctx') + , PROTOTYPE = 'prototype'; + +var $export = function(type, name, source){ + var IS_FORCED = type & $export.F + , IS_GLOBAL = type & $export.G + , IS_STATIC = type & $export.S + , IS_PROTO = type & $export.P + , IS_BIND = type & $export.B + , IS_WRAP = type & $export.W + , exports = IS_GLOBAL ? core : core[name] || (core[name] = {}) + , target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE] + , key, own, out; + if(IS_GLOBAL)source = name; + for(key in source){ + // contains in native + own = !IS_FORCED && target && key in target; + if(own && key in exports)continue; + // export native or passed + out = own ? target[key] : source[key]; + // prevent global pollution for namespaces + exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key] + // bind timers to global for call from export context + : IS_BIND && own ? ctx(out, global) + // wrap global constructors for prevent change them in library + : IS_WRAP && target[key] == out ? (function(C){ + var F = function(param){ + return this instanceof C ? new C(param) : C(param); + }; + F[PROTOTYPE] = C[PROTOTYPE]; + return F; + // make static versions for prototype methods + })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out; + if(IS_PROTO)(exports[PROTOTYPE] || (exports[PROTOTYPE] = {}))[key] = out; + } +}; +// type bitmap +$export.F = 1; // forced +$export.G = 2; // global +$export.S = 4; // static +$export.P = 8; // proto +$export.B = 16; // bind +$export.W = 32; // wrap +module.exports = $export; +},{"./$.core":7,"./$.ctx":8,"./$.global":15}],13:[function(require,module,exports){ +module.exports = function(exec){ + try { + return !!exec(); + } catch(e){ + return true; + } +}; +},{}],14:[function(require,module,exports){ +// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window +var toIObject = require('./$.to-iobject') + , getNames = require('./$').getNames + , toString = {}.toString; + +var windowNames = typeof window == 'object' && Object.getOwnPropertyNames + ? Object.getOwnPropertyNames(window) : []; + +var getWindowNames = function(it){ + try { + return getNames(it); + } catch(e){ + return windowNames.slice(); + } +}; + +module.exports.get = function getOwnPropertyNames(it){ + if(windowNames && toString.call(it) == '[object Window]')return getWindowNames(it); + return getNames(toIObject(it)); +}; +},{"./$":21,"./$.to-iobject":28}],15:[function(require,module,exports){ +// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028 +var global = module.exports = typeof window != 'undefined' && window.Math == Math + ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')(); +if(typeof __g == 'number')__g = global; // eslint-disable-line no-undef +},{}],16:[function(require,module,exports){ +var hasOwnProperty = {}.hasOwnProperty; +module.exports = function(it, key){ + return hasOwnProperty.call(it, key); +}; +},{}],17:[function(require,module,exports){ +var $ = require('./$') + , createDesc = require('./$.property-desc'); +module.exports = require('./$.descriptors') ? function(object, key, value){ + return $.setDesc(object, key, createDesc(1, value)); +} : function(object, key, value){ + object[key] = value; + return object; +}; +},{"./$":21,"./$.descriptors":10,"./$.property-desc":24}],18:[function(require,module,exports){ +// fallback for non-array-like ES3 and non-enumerable old V8 strings +var cof = require('./$.cof'); +module.exports = Object('z').propertyIsEnumerable(0) ? Object : function(it){ + return cof(it) == 'String' ? it.split('') : Object(it); +}; +},{"./$.cof":6}],19:[function(require,module,exports){ +// 7.2.2 IsArray(argument) +var cof = require('./$.cof'); +module.exports = Array.isArray || function(arg){ + return cof(arg) == 'Array'; +}; +},{"./$.cof":6}],20:[function(require,module,exports){ +module.exports = function(it){ + return typeof it === 'object' ? it !== null : typeof it === 'function'; +}; +},{}],21:[function(require,module,exports){ +var $Object = Object; +module.exports = { + create: $Object.create, + getProto: $Object.getPrototypeOf, + isEnum: {}.propertyIsEnumerable, + getDesc: $Object.getOwnPropertyDescriptor, + setDesc: $Object.defineProperty, + setDescs: $Object.defineProperties, + getKeys: $Object.keys, + getNames: $Object.getOwnPropertyNames, + getSymbols: $Object.getOwnPropertySymbols, + each: [].forEach +}; +},{}],22:[function(require,module,exports){ +var $ = require('./$') + , toIObject = require('./$.to-iobject'); +module.exports = function(object, el){ + var O = toIObject(object) + , keys = $.getKeys(O) + , length = keys.length + , index = 0 + , key; + while(length > index)if(O[key = keys[index++]] === el)return key; +}; +},{"./$":21,"./$.to-iobject":28}],23:[function(require,module,exports){ +module.exports = true; +},{}],24:[function(require,module,exports){ +module.exports = function(bitmap, value){ + return { + enumerable : !(bitmap & 1), + configurable: !(bitmap & 2), + writable : !(bitmap & 4), + value : value + }; +}; +},{}],25:[function(require,module,exports){ +module.exports = require('./$.hide'); +},{"./$.hide":17}],26:[function(require,module,exports){ +var def = require('./$').setDesc + , has = require('./$.has') + , TAG = require('./$.wks')('toStringTag'); + +module.exports = function(it, tag, stat){ + if(it && !has(it = stat ? it : it.prototype, TAG))def(it, TAG, {configurable: true, value: tag}); +}; +},{"./$":21,"./$.has":16,"./$.wks":30}],27:[function(require,module,exports){ +var global = require('./$.global') + , SHARED = '__core-js_shared__' + , store = global[SHARED] || (global[SHARED] = {}); +module.exports = function(key){ + return store[key] || (store[key] = {}); +}; +},{"./$.global":15}],28:[function(require,module,exports){ +// to indexed object, toObject with fallback for non-array-like ES3 strings +var IObject = require('./$.iobject') + , defined = require('./$.defined'); +module.exports = function(it){ + return IObject(defined(it)); +}; +},{"./$.defined":9,"./$.iobject":18}],29:[function(require,module,exports){ +var id = 0 + , px = Math.random(); +module.exports = function(key){ + return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36)); +}; +},{}],30:[function(require,module,exports){ +var store = require('./$.shared')('wks') + , uid = require('./$.uid') + , Symbol = require('./$.global').Symbol; +module.exports = function(name){ + return store[name] || (store[name] = + Symbol && Symbol[name] || (Symbol || uid)('Symbol.' + name)); +}; +},{"./$.global":15,"./$.shared":27,"./$.uid":29}],31:[function(require,module,exports){ + +},{}],32:[function(require,module,exports){ +'use strict'; +// ECMAScript 6 symbols shim +var $ = require('./$') + , global = require('./$.global') + , has = require('./$.has') + , DESCRIPTORS = require('./$.descriptors') + , $export = require('./$.export') + , redefine = require('./$.redefine') + , $fails = require('./$.fails') + , shared = require('./$.shared') + , setToStringTag = require('./$.set-to-string-tag') + , uid = require('./$.uid') + , wks = require('./$.wks') + , keyOf = require('./$.keyof') + , $names = require('./$.get-names') + , enumKeys = require('./$.enum-keys') + , isArray = require('./$.is-array') + , anObject = require('./$.an-object') + , toIObject = require('./$.to-iobject') + , createDesc = require('./$.property-desc') + , getDesc = $.getDesc + , setDesc = $.setDesc + , _create = $.create + , getNames = $names.get + , $Symbol = global.Symbol + , $JSON = global.JSON + , _stringify = $JSON && $JSON.stringify + , setter = false + , HIDDEN = wks('_hidden') + , isEnum = $.isEnum + , SymbolRegistry = shared('symbol-registry') + , AllSymbols = shared('symbols') + , useNative = typeof $Symbol == 'function' + , ObjectProto = Object.prototype; + +// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687 +var setSymbolDesc = DESCRIPTORS && $fails(function(){ + return _create(setDesc({}, 'a', { + get: function(){ return setDesc(this, 'a', {value: 7}).a; } + })).a != 7; +}) ? function(it, key, D){ + var protoDesc = getDesc(ObjectProto, key); + if(protoDesc)delete ObjectProto[key]; + setDesc(it, key, D); + if(protoDesc && it !== ObjectProto)setDesc(ObjectProto, key, protoDesc); +} : setDesc; + +var wrap = function(tag){ + var sym = AllSymbols[tag] = _create($Symbol.prototype); + sym._k = tag; + DESCRIPTORS && setter && setSymbolDesc(ObjectProto, tag, { + configurable: true, + set: function(value){ + if(has(this, HIDDEN) && has(this[HIDDEN], tag))this[HIDDEN][tag] = false; + setSymbolDesc(this, tag, createDesc(1, value)); + } + }); + return sym; +}; + +var isSymbol = function(it){ + return typeof it == 'symbol'; +}; + +var $defineProperty = function defineProperty(it, key, D){ + if(D && has(AllSymbols, key)){ + if(!D.enumerable){ + if(!has(it, HIDDEN))setDesc(it, HIDDEN, createDesc(1, {})); + it[HIDDEN][key] = true; + } else { + if(has(it, HIDDEN) && it[HIDDEN][key])it[HIDDEN][key] = false; + D = _create(D, {enumerable: createDesc(0, false)}); + } return setSymbolDesc(it, key, D); + } return setDesc(it, key, D); +}; +var $defineProperties = function defineProperties(it, P){ + anObject(it); + var keys = enumKeys(P = toIObject(P)) + , i = 0 + , l = keys.length + , key; + while(l > i)$defineProperty(it, key = keys[i++], P[key]); + return it; +}; +var $create = function create(it, P){ + return P === undefined ? _create(it) : $defineProperties(_create(it), P); +}; +var $propertyIsEnumerable = function propertyIsEnumerable(key){ + var E = isEnum.call(this, key); + return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] + ? E : true; +}; +var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key){ + var D = getDesc(it = toIObject(it), key); + if(D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key]))D.enumerable = true; + return D; +}; +var $getOwnPropertyNames = function getOwnPropertyNames(it){ + var names = getNames(toIObject(it)) + , result = [] + , i = 0 + , key; + while(names.length > i)if(!has(AllSymbols, key = names[i++]) && key != HIDDEN)result.push(key); + return result; +}; +var $getOwnPropertySymbols = function getOwnPropertySymbols(it){ + var names = getNames(toIObject(it)) + , result = [] + , i = 0 + , key; + while(names.length > i)if(has(AllSymbols, key = names[i++]))result.push(AllSymbols[key]); + return result; +}; +var $stringify = function stringify(it){ + if(it === undefined || isSymbol(it))return; // IE8 returns string on undefined + var args = [it] + , i = 1 + , $$ = arguments + , replacer, $replacer; + while($$.length > i)args.push($$[i++]); + replacer = args[1]; + if(typeof replacer == 'function')$replacer = replacer; + if($replacer || !isArray(replacer))replacer = function(key, value){ + if($replacer)value = $replacer.call(this, key, value); + if(!isSymbol(value))return value; + }; + args[1] = replacer; + return _stringify.apply($JSON, args); +}; +var buggyJSON = $fails(function(){ + var S = $Symbol(); + // MS Edge converts symbol values to JSON as {} + // WebKit converts symbol values to JSON as null + // V8 throws on boxed symbols + return _stringify([S]) != '[null]' || _stringify({a: S}) != '{}' || _stringify(Object(S)) != '{}'; +}); + +// 19.4.1.1 Symbol([description]) +if(!useNative){ + $Symbol = function Symbol(){ + if(isSymbol(this))throw TypeError('Symbol is not a constructor'); + return wrap(uid(arguments.length > 0 ? arguments[0] : undefined)); + }; + redefine($Symbol.prototype, 'toString', function toString(){ + return this._k; + }); + + isSymbol = function(it){ + return it instanceof $Symbol; + }; + + $.create = $create; + $.isEnum = $propertyIsEnumerable; + $.getDesc = $getOwnPropertyDescriptor; + $.setDesc = $defineProperty; + $.setDescs = $defineProperties; + $.getNames = $names.get = $getOwnPropertyNames; + $.getSymbols = $getOwnPropertySymbols; + + if(DESCRIPTORS && !require('./$.library')){ + redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true); + } +} + +var symbolStatics = { + // 19.4.2.1 Symbol.for(key) + 'for': function(key){ + return has(SymbolRegistry, key += '') + ? SymbolRegistry[key] + : SymbolRegistry[key] = $Symbol(key); + }, + // 19.4.2.5 Symbol.keyFor(sym) + keyFor: function keyFor(key){ + return keyOf(SymbolRegistry, key); + }, + useSetter: function(){ setter = true; }, + useSimple: function(){ setter = false; } +}; +// 19.4.2.2 Symbol.hasInstance +// 19.4.2.3 Symbol.isConcatSpreadable +// 19.4.2.4 Symbol.iterator +// 19.4.2.6 Symbol.match +// 19.4.2.8 Symbol.replace +// 19.4.2.9 Symbol.search +// 19.4.2.10 Symbol.species +// 19.4.2.11 Symbol.split +// 19.4.2.12 Symbol.toPrimitive +// 19.4.2.13 Symbol.toStringTag +// 19.4.2.14 Symbol.unscopables +$.each.call(( + 'hasInstance,isConcatSpreadable,iterator,match,replace,search,' + + 'species,split,toPrimitive,toStringTag,unscopables' +).split(','), function(it){ + var sym = wks(it); + symbolStatics[it] = useNative ? sym : wrap(sym); +}); + +setter = true; + +$export($export.G + $export.W, {Symbol: $Symbol}); + +$export($export.S, 'Symbol', symbolStatics); + +$export($export.S + $export.F * !useNative, 'Object', { + // 19.1.2.2 Object.create(O [, Properties]) + create: $create, + // 19.1.2.4 Object.defineProperty(O, P, Attributes) + defineProperty: $defineProperty, + // 19.1.2.3 Object.defineProperties(O, Properties) + defineProperties: $defineProperties, + // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P) + getOwnPropertyDescriptor: $getOwnPropertyDescriptor, + // 19.1.2.7 Object.getOwnPropertyNames(O) + getOwnPropertyNames: $getOwnPropertyNames, + // 19.1.2.8 Object.getOwnPropertySymbols(O) + getOwnPropertySymbols: $getOwnPropertySymbols +}); + +// 24.3.2 JSON.stringify(value [, replacer [, space]]) +$JSON && $export($export.S + $export.F * (!useNative || buggyJSON), 'JSON', {stringify: $stringify}); + +// 19.4.3.5 Symbol.prototype[@@toStringTag] +setToStringTag($Symbol, 'Symbol'); +// 20.2.1.9 Math[@@toStringTag] +setToStringTag(Math, 'Math', true); +// 24.3.3 JSON[@@toStringTag] +setToStringTag(global.JSON, 'JSON', true); +},{"./$":21,"./$.an-object":5,"./$.descriptors":10,"./$.enum-keys":11,"./$.export":12,"./$.fails":13,"./$.get-names":14,"./$.global":15,"./$.has":16,"./$.is-array":19,"./$.keyof":22,"./$.library":23,"./$.property-desc":24,"./$.redefine":25,"./$.set-to-string-tag":26,"./$.shared":27,"./$.to-iobject":28,"./$.uid":29,"./$.wks":30}],33:[function(require,module,exports){ +(function (global){ +/*! + * Vue.js v1.0.17 + * (c) 2016 Evan You + * Released under the MIT License. + */ +'use strict'; + +function set(obj, key, val) { + if (hasOwn(obj, key)) { + obj[key] = val; + return; + } + if (obj._isVue) { + set(obj._data, key, val); + return; + } + var ob = obj.__ob__; + if (!ob) { + obj[key] = val; + return; + } + ob.convert(key, val); + ob.dep.notify(); + if (ob.vms) { + var i = ob.vms.length; + while (i--) { + var vm = ob.vms[i]; + vm._proxy(key); + vm._digest(); + } + } + return val; +} + +/** + * Delete a property and trigger change if necessary. + * + * @param {Object} obj + * @param {String} key + */ + +function del(obj, key) { + if (!hasOwn(obj, key)) { + return; + } + delete obj[key]; + var ob = obj.__ob__; + if (!ob) { + return; + } + ob.dep.notify(); + if (ob.vms) { + var i = ob.vms.length; + while (i--) { + var vm = ob.vms[i]; + vm._unproxy(key); + vm._digest(); + } + } +} + +var hasOwnProperty = Object.prototype.hasOwnProperty; +/** + * Check whether the object has the property. + * + * @param {Object} obj + * @param {String} key + * @return {Boolean} + */ + +function hasOwn(obj, key) { + return hasOwnProperty.call(obj, key); +} + +/** + * Check if an expression is a literal value. + * + * @param {String} exp + * @return {Boolean} + */ + +var literalValueRE = /^\s?(true|false|-?[\d\.]+|'[^']*'|"[^"]*")\s?$/; + +function isLiteral(exp) { + return literalValueRE.test(exp); +} + +/** + * Check if a string starts with $ or _ + * + * @param {String} str + * @return {Boolean} + */ + +function isReserved(str) { + var c = (str + '').charCodeAt(0); + return c === 0x24 || c === 0x5F; +} + +/** + * Guard text output, make sure undefined outputs + * empty string + * + * @param {*} value + * @return {String} + */ + +function _toString(value) { + return value == null ? '' : value.toString(); +} + +/** + * Check and convert possible numeric strings to numbers + * before setting back to data + * + * @param {*} value + * @return {*|Number} + */ + +function toNumber(value) { + if (typeof value !== 'string') { + return value; + } else { + var parsed = Number(value); + return isNaN(parsed) ? value : parsed; + } +} + +/** + * Convert string boolean literals into real booleans. + * + * @param {*} value + * @return {*|Boolean} + */ + +function toBoolean(value) { + return value === 'true' ? true : value === 'false' ? false : value; +} + +/** + * Strip quotes from a string + * + * @param {String} str + * @return {String | false} + */ + +function stripQuotes(str) { + var a = str.charCodeAt(0); + var b = str.charCodeAt(str.length - 1); + return a === b && (a === 0x22 || a === 0x27) ? str.slice(1, -1) : str; +} + +/** + * Camelize a hyphen-delmited string. + * + * @param {String} str + * @return {String} + */ + +var camelizeRE = /-(\w)/g; + +function camelize(str) { + return str.replace(camelizeRE, toUpper); +} + +function toUpper(_, c) { + return c ? c.toUpperCase() : ''; +} + +/** + * Hyphenate a camelCase string. + * + * @param {String} str + * @return {String} + */ + +var hyphenateRE = /([a-z\d])([A-Z])/g; + +function hyphenate(str) { + return str.replace(hyphenateRE, '$1-$2').toLowerCase(); +} + +/** + * Converts hyphen/underscore/slash delimitered names into + * camelized classNames. + * + * e.g. my-component => MyComponent + * some_else => SomeElse + * some/comp => SomeComp + * + * @param {String} str + * @return {String} + */ + +var classifyRE = /(?:^|[-_\/])(\w)/g; + +function classify(str) { + return str.replace(classifyRE, toUpper); +} + +/** + * Simple bind, faster than native + * + * @param {Function} fn + * @param {Object} ctx + * @return {Function} + */ + +function bind(fn, ctx) { + return function (a) { + var l = arguments.length; + return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx); + }; +} + +/** + * Convert an Array-like object to a real Array. + * + * @param {Array-like} list + * @param {Number} [start] - start index + * @return {Array} + */ + +function toArray(list, start) { + start = start || 0; + var i = list.length - start; + var ret = new Array(i); + while (i--) { + ret[i] = list[i + start]; + } + return ret; +} + +/** + * Mix properties into target object. + * + * @param {Object} to + * @param {Object} from + */ + +function extend(to, from) { + var keys = Object.keys(from); + var i = keys.length; + while (i--) { + to[keys[i]] = from[keys[i]]; + } + return to; +} + +/** + * Quick object check - this is primarily used to tell + * Objects from primitive values when we know the value + * is a JSON-compliant type. + * + * @param {*} obj + * @return {Boolean} + */ + +function isObject(obj) { + return obj !== null && typeof obj === 'object'; +} + +/** + * Strict object type check. Only returns true + * for plain JavaScript objects. + * + * @param {*} obj + * @return {Boolean} + */ + +var toString = Object.prototype.toString; +var OBJECT_STRING = '[object Object]'; + +function isPlainObject(obj) { + return toString.call(obj) === OBJECT_STRING; +} + +/** + * Array type check. + * + * @param {*} obj + * @return {Boolean} + */ + +var isArray = Array.isArray; + +/** + * Define a non-enumerable property + * + * @param {Object} obj + * @param {String} key + * @param {*} val + * @param {Boolean} [enumerable] + */ + +function def(obj, key, val, enumerable) { + Object.defineProperty(obj, key, { + value: val, + enumerable: !!enumerable, + writable: true, + configurable: true + }); +} + +/** + * Debounce a function so it only gets called after the + * input stops arriving after the given wait period. + * + * @param {Function} func + * @param {Number} wait + * @return {Function} - the debounced function + */ + +function _debounce(func, wait) { + var timeout, args, context, timestamp, result; + var later = function later() { + var last = Date.now() - timestamp; + if (last < wait && last >= 0) { + timeout = setTimeout(later, wait - last); + } else { + timeout = null; + result = func.apply(context, args); + if (!timeout) context = args = null; + } + }; + return function () { + context = this; + args = arguments; + timestamp = Date.now(); + if (!timeout) { + timeout = setTimeout(later, wait); + } + return result; + }; +} + +/** + * Manual indexOf because it's slightly faster than + * native. + * + * @param {Array} arr + * @param {*} obj + */ + +function indexOf(arr, obj) { + var i = arr.length; + while (i--) { + if (arr[i] === obj) return i; + } + return -1; +} + +/** + * Make a cancellable version of an async callback. + * + * @param {Function} fn + * @return {Function} + */ + +function cancellable(fn) { + var cb = function cb() { + if (!cb.cancelled) { + return fn.apply(this, arguments); + } + }; + cb.cancel = function () { + cb.cancelled = true; + }; + return cb; +} + +/** + * Check if two values are loosely equal - that is, + * if they are plain objects, do they have the same shape? + * + * @param {*} a + * @param {*} b + * @return {Boolean} + */ + +function looseEqual(a, b) { + /* eslint-disable eqeqeq */ + return a == b || (isObject(a) && isObject(b) ? JSON.stringify(a) === JSON.stringify(b) : false); + /* eslint-enable eqeqeq */ +} + +var hasProto = ('__proto__' in {}); + +// Browser environment sniffing +var inBrowser = typeof window !== 'undefined' && Object.prototype.toString.call(window) !== '[object Object]'; + +// detect devtools +var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__; + +// UA sniffing for working around browser-specific quirks +var UA = inBrowser && window.navigator.userAgent.toLowerCase(); +var isIE9 = UA && UA.indexOf('msie 9.0') > 0; +var isAndroid = UA && UA.indexOf('android') > 0; + +var transitionProp = undefined; +var transitionEndEvent = undefined; +var animationProp = undefined; +var animationEndEvent = undefined; + +// Transition property/event sniffing +if (inBrowser && !isIE9) { + var isWebkitTrans = window.ontransitionend === undefined && window.onwebkittransitionend !== undefined; + var isWebkitAnim = window.onanimationend === undefined && window.onwebkitanimationend !== undefined; + transitionProp = isWebkitTrans ? 'WebkitTransition' : 'transition'; + transitionEndEvent = isWebkitTrans ? 'webkitTransitionEnd' : 'transitionend'; + animationProp = isWebkitAnim ? 'WebkitAnimation' : 'animation'; + animationEndEvent = isWebkitAnim ? 'webkitAnimationEnd' : 'animationend'; +} + +/** + * Defer a task to execute it asynchronously. Ideally this + * should be executed as a microtask, so we leverage + * MutationObserver if it's available, and fallback to + * setTimeout(0). + * + * @param {Function} cb + * @param {Object} ctx + */ + +var nextTick = (function () { + var callbacks = []; + var pending = false; + var timerFunc; + function nextTickHandler() { + pending = false; + var copies = callbacks.slice(0); + callbacks = []; + for (var i = 0; i < copies.length; i++) { + copies[i](); + } + } + + /* istanbul ignore if */ + if (typeof MutationObserver !== 'undefined') { + var counter = 1; + var observer = new MutationObserver(nextTickHandler); + var textNode = document.createTextNode(counter); + observer.observe(textNode, { + characterData: true + }); + timerFunc = function () { + counter = (counter + 1) % 2; + textNode.data = counter; + }; + } else { + // webpack attempts to inject a shim for setImmediate + // if it is used as a global, so we have to work around that to + // avoid bundling unnecessary code. + var context = inBrowser ? window : typeof global !== 'undefined' ? global : {}; + timerFunc = context.setImmediate || setTimeout; + } + return function (cb, ctx) { + var func = ctx ? function () { + cb.call(ctx); + } : cb; + callbacks.push(func); + if (pending) return; + pending = true; + timerFunc(nextTickHandler, 0); + }; +})(); + +function Cache(limit) { + this.size = 0; + this.limit = limit; + this.head = this.tail = undefined; + this._keymap = Object.create(null); +} + +var p = Cache.prototype; + +/** + * Put into the cache associated with . + * Returns the entry which was removed to make room for + * the new entry. Otherwise undefined is returned. + * (i.e. if there was enough room already). + * + * @param {String} key + * @param {*} value + * @return {Entry|undefined} + */ + +p.put = function (key, value) { + var removed; + if (this.size === this.limit) { + removed = this.shift(); + } + + var entry = this.get(key, true); + if (!entry) { + entry = { + key: key + }; + this._keymap[key] = entry; + if (this.tail) { + this.tail.newer = entry; + entry.older = this.tail; + } else { + this.head = entry; + } + this.tail = entry; + this.size++; + } + entry.value = value; + + return removed; +}; + +/** + * Purge the least recently used (oldest) entry from the + * cache. Returns the removed entry or undefined if the + * cache was empty. + */ + +p.shift = function () { + var entry = this.head; + if (entry) { + this.head = this.head.newer; + this.head.older = undefined; + entry.newer = entry.older = undefined; + this._keymap[entry.key] = undefined; + this.size--; + } + return entry; +}; + +/** + * Get and register recent use of . Returns the value + * associated with or undefined if not in cache. + * + * @param {String} key + * @param {Boolean} returnEntry + * @return {Entry|*} + */ + +p.get = function (key, returnEntry) { + var entry = this._keymap[key]; + if (entry === undefined) return; + if (entry === this.tail) { + return returnEntry ? entry : entry.value; + } + // HEAD--------------TAIL + // <.older .newer> + // <--- add direction -- + // A B C E + if (entry.newer) { + if (entry === this.head) { + this.head = entry.newer; + } + entry.newer.older = entry.older; // C <-- E. + } + if (entry.older) { + entry.older.newer = entry.newer; // C. --> E + } + entry.newer = undefined; // D --x + entry.older = this.tail; // D. --> E + if (this.tail) { + this.tail.newer = entry; // E. <-- D + } + this.tail = entry; + return returnEntry ? entry : entry.value; +}; + +var cache$1 = new Cache(1000); +var filterTokenRE = /[^\s'"]+|'[^']*'|"[^"]*"/g; +var reservedArgRE = /^in$|^-?\d+/; + +/** + * Parser state + */ + +var str; +var dir; +var c; +var prev; +var i; +var l; +var lastFilterIndex; +var inSingle; +var inDouble; +var curly; +var square; +var paren; +/** + * Push a filter to the current directive object + */ + +function pushFilter() { + var exp = str.slice(lastFilterIndex, i).trim(); + var filter; + if (exp) { + filter = {}; + var tokens = exp.match(filterTokenRE); + filter.name = tokens[0]; + if (tokens.length > 1) { + filter.args = tokens.slice(1).map(processFilterArg); + } + } + if (filter) { + (dir.filters = dir.filters || []).push(filter); + } + lastFilterIndex = i + 1; +} + +/** + * Check if an argument is dynamic and strip quotes. + * + * @param {String} arg + * @return {Object} + */ + +function processFilterArg(arg) { + if (reservedArgRE.test(arg)) { + return { + value: toNumber(arg), + dynamic: false + }; + } else { + var stripped = stripQuotes(arg); + var dynamic = stripped === arg; + return { + value: dynamic ? arg : stripped, + dynamic: dynamic + }; + } +} + +/** + * Parse a directive value and extract the expression + * and its filters into a descriptor. + * + * Example: + * + * "a + 1 | uppercase" will yield: + * { + * expression: 'a + 1', + * filters: [ + * { name: 'uppercase', args: null } + * ] + * } + * + * @param {String} str + * @return {Object} + */ + +function parseDirective(s) { + var hit = cache$1.get(s); + if (hit) { + return hit; + } + + // reset parser state + str = s; + inSingle = inDouble = false; + curly = square = paren = 0; + lastFilterIndex = 0; + dir = {}; + + for (i = 0, l = str.length; i < l; i++) { + prev = c; + c = str.charCodeAt(i); + if (inSingle) { + // check single quote + if (c === 0x27 && prev !== 0x5C) inSingle = !inSingle; + } else if (inDouble) { + // check double quote + if (c === 0x22 && prev !== 0x5C) inDouble = !inDouble; + } else if (c === 0x7C && // pipe + str.charCodeAt(i + 1) !== 0x7C && str.charCodeAt(i - 1) !== 0x7C) { + if (dir.expression == null) { + // first filter, end of expression + lastFilterIndex = i + 1; + dir.expression = str.slice(0, i).trim(); + } else { + // already has filter + pushFilter(); + } + } else { + switch (c) { + case 0x22: + inDouble = true;break; // " + case 0x27: + inSingle = true;break; // ' + case 0x28: + paren++;break; // ( + case 0x29: + paren--;break; // ) + case 0x5B: + square++;break; // [ + case 0x5D: + square--;break; // ] + case 0x7B: + curly++;break; // { + case 0x7D: + curly--;break; // } + } + } + } + + if (dir.expression == null) { + dir.expression = str.slice(0, i).trim(); + } else if (lastFilterIndex !== 0) { + pushFilter(); + } + + cache$1.put(s, dir); + return dir; +} + +var directive = Object.freeze({ + parseDirective: parseDirective +}); + +var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g; +var cache = undefined; +var tagRE = undefined; +var htmlRE = undefined; +/** + * Escape a string so it can be used in a RegExp + * constructor. + * + * @param {String} str + */ + +function escapeRegex(str) { + return str.replace(regexEscapeRE, '\\$&'); +} + +function compileRegex() { + var open = escapeRegex(config.delimiters[0]); + var close = escapeRegex(config.delimiters[1]); + var unsafeOpen = escapeRegex(config.unsafeDelimiters[0]); + var unsafeClose = escapeRegex(config.unsafeDelimiters[1]); + tagRE = new RegExp(unsafeOpen + '(.+?)' + unsafeClose + '|' + open + '(.+?)' + close, 'g'); + htmlRE = new RegExp('^' + unsafeOpen + '.*' + unsafeClose + '$'); + // reset cache + cache = new Cache(1000); +} + +/** + * Parse a template text string into an array of tokens. + * + * @param {String} text + * @return {Array | null} + * - {String} type + * - {String} value + * - {Boolean} [html] + * - {Boolean} [oneTime] + */ + +function parseText(text) { + if (!cache) { + compileRegex(); + } + var hit = cache.get(text); + if (hit) { + return hit; + } + text = text.replace(/\n/g, ''); + if (!tagRE.test(text)) { + return null; + } + var tokens = []; + var lastIndex = tagRE.lastIndex = 0; + var match, index, html, value, first, oneTime; + /* eslint-disable no-cond-assign */ + while (match = tagRE.exec(text)) { + /* eslint-enable no-cond-assign */ + index = match.index; + // push text token + if (index > lastIndex) { + tokens.push({ + value: text.slice(lastIndex, index) + }); + } + // tag token + html = htmlRE.test(match[0]); + value = html ? match[1] : match[2]; + first = value.charCodeAt(0); + oneTime = first === 42; // * + value = oneTime ? value.slice(1) : value; + tokens.push({ + tag: true, + value: value.trim(), + html: html, + oneTime: oneTime + }); + lastIndex = index + match[0].length; + } + if (lastIndex < text.length) { + tokens.push({ + value: text.slice(lastIndex) + }); + } + cache.put(text, tokens); + return tokens; +} + +/** + * Format a list of tokens into an expression. + * e.g. tokens parsed from 'a {{b}} c' can be serialized + * into one single expression as '"a " + b + " c"'. + * + * @param {Array} tokens + * @param {Vue} [vm] + * @return {String} + */ + +function tokensToExp(tokens, vm) { + if (tokens.length > 1) { + return tokens.map(function (token) { + return formatToken(token, vm); + }).join('+'); + } else { + return formatToken(tokens[0], vm, true); + } +} + +/** + * Format a single token. + * + * @param {Object} token + * @param {Vue} [vm] + * @param {Boolean} [single] + * @return {String} + */ + +function formatToken(token, vm, single) { + return token.tag ? token.oneTime && vm ? '"' + vm.$eval(token.value) + '"' : inlineFilters(token.value, single) : '"' + token.value + '"'; +} + +/** + * For an attribute with multiple interpolation tags, + * e.g. attr="some-{{thing | filter}}", in order to combine + * the whole thing into a single watchable expression, we + * have to inline those filters. This function does exactly + * that. This is a bit hacky but it avoids heavy changes + * to directive parser and watcher mechanism. + * + * @param {String} exp + * @param {Boolean} single + * @return {String} + */ + +var filterRE = /[^|]\|[^|]/; +function inlineFilters(exp, single) { + if (!filterRE.test(exp)) { + return single ? exp : '(' + exp + ')'; + } else { + var dir = parseDirective(exp); + if (!dir.filters) { + return '(' + exp + ')'; + } else { + return 'this._applyFilters(' + dir.expression + // value + ',null,' + // oldValue (null for read) + JSON.stringify(dir.filters) + // filter descriptors + ',false)'; // write? + } + } +} + +var text = Object.freeze({ + compileRegex: compileRegex, + parseText: parseText, + tokensToExp: tokensToExp +}); + +var delimiters = ['{{', '}}']; +var unsafeDelimiters = ['{{{', '}}}']; + +var config = Object.defineProperties({ + + /** + * Whether to print debug messages. + * Also enables stack trace for warnings. + * + * @type {Boolean} + */ + + debug: false, + + /** + * Whether to suppress warnings. + * + * @type {Boolean} + */ + + silent: false, + + /** + * Whether to use async rendering. + */ + + async: true, + + /** + * Whether to warn against errors caught when evaluating + * expressions. + */ + + warnExpressionErrors: true, + + /** + * Internal flag to indicate the delimiters have been + * changed. + * + * @type {Boolean} + */ + + _delimitersChanged: true, + + /** + * List of asset types that a component can own. + * + * @type {Array} + */ + + _assetTypes: ['component', 'directive', 'elementDirective', 'filter', 'transition', 'partial'], + + /** + * prop binding modes + */ + + _propBindingModes: { + ONE_WAY: 0, + TWO_WAY: 1, + ONE_TIME: 2 + }, + + /** + * Max circular updates allowed in a batcher flush cycle. + */ + + _maxUpdateCount: 100 + +}, { + delimiters: { /** + * Interpolation delimiters. Changing these would trigger + * the text parser to re-compile the regular expressions. + * + * @type {Array} + */ + + get: function get() { + return delimiters; + }, + set: function set(val) { + delimiters = val; + compileRegex(); + }, + configurable: true, + enumerable: true + }, + unsafeDelimiters: { + get: function get() { + return unsafeDelimiters; + }, + set: function set(val) { + unsafeDelimiters = val; + compileRegex(); + }, + configurable: true, + enumerable: true + } +}); + +var warn = undefined; + +if ("production" !== 'production') { + (function () { + var hasConsole = typeof console !== 'undefined'; + warn = function (msg, e) { + if (hasConsole && (!config.silent || config.debug)) { + console.warn('[Vue warn]: ' + msg); + /* istanbul ignore if */ + if (config.debug) { + if (e) { + throw e; + } else { + console.warn(new Error('Warning Stack Trace').stack); + } + } + } + }; + })(); +} + +/** + * Append with transition. + * + * @param {Element} el + * @param {Element} target + * @param {Vue} vm + * @param {Function} [cb] + */ + +function appendWithTransition(el, target, vm, cb) { + applyTransition(el, 1, function () { + target.appendChild(el); + }, vm, cb); +} + +/** + * InsertBefore with transition. + * + * @param {Element} el + * @param {Element} target + * @param {Vue} vm + * @param {Function} [cb] + */ + +function beforeWithTransition(el, target, vm, cb) { + applyTransition(el, 1, function () { + before(el, target); + }, vm, cb); +} + +/** + * Remove with transition. + * + * @param {Element} el + * @param {Vue} vm + * @param {Function} [cb] + */ + +function removeWithTransition(el, vm, cb) { + applyTransition(el, -1, function () { + remove(el); + }, vm, cb); +} + +/** + * Apply transitions with an operation callback. + * + * @param {Element} el + * @param {Number} direction + * 1: enter + * -1: leave + * @param {Function} op - the actual DOM operation + * @param {Vue} vm + * @param {Function} [cb] + */ + +function applyTransition(el, direction, op, vm, cb) { + var transition = el.__v_trans; + if (!transition || + // skip if there are no js hooks and CSS transition is + // not supported + !transition.hooks && !transitionEndEvent || + // skip transitions for initial compile + !vm._isCompiled || + // if the vm is being manipulated by a parent directive + // during the parent's compilation phase, skip the + // animation. + vm.$parent && !vm.$parent._isCompiled) { + op(); + if (cb) cb(); + return; + } + var action = direction > 0 ? 'enter' : 'leave'; + transition[action](op, cb); +} + +var transition = Object.freeze({ + appendWithTransition: appendWithTransition, + beforeWithTransition: beforeWithTransition, + removeWithTransition: removeWithTransition, + applyTransition: applyTransition +}); + +/** + * Query an element selector if it's not an element already. + * + * @param {String|Element} el + * @return {Element} + */ + +function query(el) { + if (typeof el === 'string') { + var selector = el; + el = document.querySelector(el); + if (!el) { + "production" !== 'production' && warn('Cannot find element: ' + selector); + } + } + return el; +} + +/** + * Check if a node is in the document. + * Note: document.documentElement.contains should work here + * but always returns false for comment nodes in phantomjs, + * making unit tests difficult. This is fixed by doing the + * contains() check on the node's parentNode instead of + * the node itself. + * + * @param {Node} node + * @return {Boolean} + */ + +function inDoc(node) { + var doc = document.documentElement; + var parent = node && node.parentNode; + return doc === node || doc === parent || !!(parent && parent.nodeType === 1 && doc.contains(parent)); +} + +/** + * Get and remove an attribute from a node. + * + * @param {Node} node + * @param {String} _attr + */ + +function getAttr(node, _attr) { + var val = node.getAttribute(_attr); + if (val !== null) { + node.removeAttribute(_attr); + } + return val; +} + +/** + * Get an attribute with colon or v-bind: prefix. + * + * @param {Node} node + * @param {String} name + * @return {String|null} + */ + +function getBindAttr(node, name) { + var val = getAttr(node, ':' + name); + if (val === null) { + val = getAttr(node, 'v-bind:' + name); + } + return val; +} + +/** + * Check the presence of a bind attribute. + * + * @param {Node} node + * @param {String} name + * @return {Boolean} + */ + +function hasBindAttr(node, name) { + return node.hasAttribute(name) || node.hasAttribute(':' + name) || node.hasAttribute('v-bind:' + name); +} + +/** + * Insert el before target + * + * @param {Element} el + * @param {Element} target + */ + +function before(el, target) { + target.parentNode.insertBefore(el, target); +} + +/** + * Insert el after target + * + * @param {Element} el + * @param {Element} target + */ + +function after(el, target) { + if (target.nextSibling) { + before(el, target.nextSibling); + } else { + target.parentNode.appendChild(el); + } +} + +/** + * Remove el from DOM + * + * @param {Element} el + */ + +function remove(el) { + el.parentNode.removeChild(el); +} + +/** + * Prepend el to target + * + * @param {Element} el + * @param {Element} target + */ + +function prepend(el, target) { + if (target.firstChild) { + before(el, target.firstChild); + } else { + target.appendChild(el); + } +} + +/** + * Replace target with el + * + * @param {Element} target + * @param {Element} el + */ + +function replace(target, el) { + var parent = target.parentNode; + if (parent) { + parent.replaceChild(el, target); + } +} + +/** + * Add event listener shorthand. + * + * @param {Element} el + * @param {String} event + * @param {Function} cb + * @param {Boolean} [useCapture] + */ + +function on(el, event, cb, useCapture) { + el.addEventListener(event, cb, useCapture); +} + +/** + * Remove event listener shorthand. + * + * @param {Element} el + * @param {String} event + * @param {Function} cb + */ + +function off(el, event, cb) { + el.removeEventListener(event, cb); +} + +/** + * In IE9, setAttribute('class') will result in empty class + * if the element also has the :class attribute; However in + * PhantomJS, setting `className` does not work on SVG elements... + * So we have to do a conditional check here. + * + * @param {Element} el + * @param {String} cls + */ + +function setClass(el, cls) { + /* istanbul ignore if */ + if (isIE9 && !/svg$/.test(el.namespaceURI)) { + el.className = cls; + } else { + el.setAttribute('class', cls); + } +} + +/** + * Add class with compatibility for IE & SVG + * + * @param {Element} el + * @param {String} cls + */ + +function addClass(el, cls) { + if (el.classList) { + el.classList.add(cls); + } else { + var cur = ' ' + (el.getAttribute('class') || '') + ' '; + if (cur.indexOf(' ' + cls + ' ') < 0) { + setClass(el, (cur + cls).trim()); + } + } +} + +/** + * Remove class with compatibility for IE & SVG + * + * @param {Element} el + * @param {String} cls + */ + +function removeClass(el, cls) { + if (el.classList) { + el.classList.remove(cls); + } else { + var cur = ' ' + (el.getAttribute('class') || '') + ' '; + var tar = ' ' + cls + ' '; + while (cur.indexOf(tar) >= 0) { + cur = cur.replace(tar, ' '); + } + setClass(el, cur.trim()); + } + if (!el.className) { + el.removeAttribute('class'); + } +} + +/** + * Extract raw content inside an element into a temporary + * container div + * + * @param {Element} el + * @param {Boolean} asFragment + * @return {Element|DocumentFragment} + */ + +function extractContent(el, asFragment) { + var child; + var rawContent; + /* istanbul ignore if */ + if (isTemplate(el) && isFragment(el.content)) { + el = el.content; + } + if (el.hasChildNodes()) { + trimNode(el); + rawContent = asFragment ? document.createDocumentFragment() : document.createElement('div'); + /* eslint-disable no-cond-assign */ + while (child = el.firstChild) { + /* eslint-enable no-cond-assign */ + rawContent.appendChild(child); + } + } + return rawContent; +} + +/** + * Trim possible empty head/tail text and comment + * nodes inside a parent. + * + * @param {Node} node + */ + +function trimNode(node) { + var child; + /* eslint-disable no-sequences */ + while ((child = node.firstChild, isTrimmable(child))) { + node.removeChild(child); + } + while ((child = node.lastChild, isTrimmable(child))) { + node.removeChild(child); + } + /* eslint-enable no-sequences */ +} + +function isTrimmable(node) { + return node && (node.nodeType === 3 && !node.data.trim() || node.nodeType === 8); +} + +/** + * Check if an element is a template tag. + * Note if the template appears inside an SVG its tagName + * will be in lowercase. + * + * @param {Element} el + */ + +function isTemplate(el) { + return el.tagName && el.tagName.toLowerCase() === 'template'; +} + +/** + * Create an "anchor" for performing dom insertion/removals. + * This is used in a number of scenarios: + * - fragment instance + * - v-html + * - v-if + * - v-for + * - component + * + * @param {String} content + * @param {Boolean} persist - IE trashes empty textNodes on + * cloneNode(true), so in certain + * cases the anchor needs to be + * non-empty to be persisted in + * templates. + * @return {Comment|Text} + */ + +function createAnchor(content, persist) { + var anchor = config.debug ? document.createComment(content) : document.createTextNode(persist ? ' ' : ''); + anchor.__v_anchor = true; + return anchor; +} + +/** + * Find a component ref attribute that starts with $. + * + * @param {Element} node + * @return {String|undefined} + */ + +var refRE = /^v-ref:/; + +function findRef(node) { + if (node.hasAttributes()) { + var attrs = node.attributes; + for (var i = 0, l = attrs.length; i < l; i++) { + var name = attrs[i].name; + if (refRE.test(name)) { + return camelize(name.replace(refRE, '')); + } + } + } +} + +/** + * Map a function to a range of nodes . + * + * @param {Node} node + * @param {Node} end + * @param {Function} op + */ + +function mapNodeRange(node, end, op) { + var next; + while (node !== end) { + next = node.nextSibling; + op(node); + node = next; + } + op(end); +} + +/** + * Remove a range of nodes with transition, store + * the nodes in a fragment with correct ordering, + * and call callback when done. + * + * @param {Node} start + * @param {Node} end + * @param {Vue} vm + * @param {DocumentFragment} frag + * @param {Function} cb + */ + +function removeNodeRange(start, end, vm, frag, cb) { + var done = false; + var removed = 0; + var nodes = []; + mapNodeRange(start, end, function (node) { + if (node === end) done = true; + nodes.push(node); + removeWithTransition(node, vm, onRemoved); + }); + function onRemoved() { + removed++; + if (done && removed >= nodes.length) { + for (var i = 0; i < nodes.length; i++) { + frag.appendChild(nodes[i]); + } + cb && cb(); + } + } +} + +/** + * Check if a node is a DocumentFragment. + * + * @param {Node} node + * @return {Boolean} + */ + +function isFragment(node) { + return node && node.nodeType === 11; +} + +/** + * Get outerHTML of elements, taking care + * of SVG elements in IE as well. + * + * @param {Element} el + * @return {String} + */ + +function getOuterHTML(el) { + if (el.outerHTML) { + return el.outerHTML; + } else { + var container = document.createElement('div'); + container.appendChild(el.cloneNode(true)); + return container.innerHTML; + } +} + +var commonTagRE = /^(div|p|span|img|a|b|i|br|ul|ol|li|h1|h2|h3|h4|h5|h6|code|pre|table|th|td|tr|form|label|input|select|option|nav|article|section|header|footer)$/; +var reservedTagRE = /^(slot|partial|component)$/; + +var isUnknownElement = undefined; +if ("production" !== 'production') { + isUnknownElement = function (el, tag) { + if (tag.indexOf('-') > -1) { + // http://stackoverflow.com/a/28210364/1070244 + return el.constructor === window.HTMLUnknownElement || el.constructor === window.HTMLElement; + } else { + return (/HTMLUnknownElement/.test(el.toString()) && + // Chrome returns unknown for several HTML5 elements. + // https://code.google.com/p/chromium/issues/detail?id=540526 + !/^(data|time|rtc|rb)$/.test(tag) + ); + } + }; +} + +/** + * Check if an element is a component, if yes return its + * component id. + * + * @param {Element} el + * @param {Object} options + * @return {Object|undefined} + */ + +function checkComponentAttr(el, options) { + var tag = el.tagName.toLowerCase(); + var hasAttrs = el.hasAttributes(); + if (!commonTagRE.test(tag) && !reservedTagRE.test(tag)) { + if (resolveAsset(options, 'components', tag)) { + return { id: tag }; + } else { + var is = hasAttrs && getIsBinding(el); + if (is) { + return is; + } else if ("production" !== 'production') { + var expectedTag = options._componentNameMap && options._componentNameMap[tag]; + if (expectedTag) { + warn('Unknown custom element: <' + tag + '> - ' + 'did you mean <' + expectedTag + '>? ' + 'HTML is case-insensitive, remember to use kebab-case in templates.'); + } else if (isUnknownElement(el, tag)) { + warn('Unknown custom element: <' + tag + '> - did you ' + 'register the component correctly? For recursive components, ' + 'make sure to provide the "name" option.'); + } + } + } + } else if (hasAttrs) { + return getIsBinding(el); + } +} + +/** + * Get "is" binding from an element. + * + * @param {Element} el + * @return {Object|undefined} + */ + +function getIsBinding(el) { + // dynamic syntax + var exp = getAttr(el, 'is'); + if (exp != null) { + return { id: exp }; + } else { + exp = getBindAttr(el, 'is'); + if (exp != null) { + return { id: exp, dynamic: true }; + } + } +} + +/** + * Set a prop's initial value on a vm and its data object. + * + * @param {Vue} vm + * @param {Object} prop + * @param {*} value + */ + +function initProp(vm, prop, value) { + var key = prop.path; + value = coerceProp(prop, value); + vm[key] = vm._data[key] = assertProp(prop, value) ? value : undefined; +} + +/** + * Assert whether a prop is valid. + * + * @param {Object} prop + * @param {*} value + */ + +function assertProp(prop, value) { + if (!prop.options.required && ( // non-required + prop.raw === null || // abscent + value == null) // null or undefined + ) { + return true; + } + var options = prop.options; + var type = options.type; + var valid = true; + var expectedType; + if (type) { + if (type === String) { + expectedType = 'string'; + valid = typeof value === expectedType; + } else if (type === Number) { + expectedType = 'number'; + valid = typeof value === 'number'; + } else if (type === Boolean) { + expectedType = 'boolean'; + valid = typeof value === 'boolean'; + } else if (type === Function) { + expectedType = 'function'; + valid = typeof value === 'function'; + } else if (type === Object) { + expectedType = 'object'; + valid = isPlainObject(value); + } else if (type === Array) { + expectedType = 'array'; + valid = isArray(value); + } else { + valid = value instanceof type; + } + } + if (!valid) { + "production" !== 'production' && warn('Invalid prop: type check failed for ' + prop.path + '="' + prop.raw + '".' + ' Expected ' + formatType(expectedType) + ', got ' + formatValue(value) + '.'); + return false; + } + var validator = options.validator; + if (validator) { + if (!validator(value)) { + "production" !== 'production' && warn('Invalid prop: custom validator check failed for ' + prop.path + '="' + prop.raw + '"'); + return false; + } + } + return true; +} + +/** + * Force parsing value with coerce option. + * + * @param {*} value + * @param {Object} options + * @return {*} + */ + +function coerceProp(prop, value) { + var coerce = prop.options.coerce; + if (!coerce) { + return value; + } + // coerce is a function + return coerce(value); +} + +function formatType(val) { + return val ? val.charAt(0).toUpperCase() + val.slice(1) : 'custom type'; +} + +function formatValue(val) { + return Object.prototype.toString.call(val).slice(8, -1); +} + +/** + * Option overwriting strategies are functions that handle + * how to merge a parent option value and a child option + * value into the final value. + * + * All strategy functions follow the same signature: + * + * @param {*} parentVal + * @param {*} childVal + * @param {Vue} [vm] + */ + +var strats = config.optionMergeStrategies = Object.create(null); + +/** + * Helper that recursively merges two data objects together. + */ + +function mergeData(to, from) { + var key, toVal, fromVal; + for (key in from) { + toVal = to[key]; + fromVal = from[key]; + if (!hasOwn(to, key)) { + set(to, key, fromVal); + } else if (isObject(toVal) && isObject(fromVal)) { + mergeData(toVal, fromVal); + } + } + return to; +} + +/** + * Data + */ + +strats.data = function (parentVal, childVal, vm) { + if (!vm) { + // in a Vue.extend merge, both should be functions + if (!childVal) { + return parentVal; + } + if (typeof childVal !== 'function') { + "production" !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.'); + return parentVal; + } + if (!parentVal) { + return childVal; + } + // when parentVal & childVal are both present, + // we need to return a function that returns the + // merged result of both functions... no need to + // check if parentVal is a function here because + // it has to be a function to pass previous merges. + return function mergedDataFn() { + return mergeData(childVal.call(this), parentVal.call(this)); + }; + } else if (parentVal || childVal) { + return function mergedInstanceDataFn() { + // instance merge + var instanceData = typeof childVal === 'function' ? childVal.call(vm) : childVal; + var defaultData = typeof parentVal === 'function' ? parentVal.call(vm) : undefined; + if (instanceData) { + return mergeData(instanceData, defaultData); + } else { + return defaultData; + } + }; + } +}; + +/** + * El + */ + +strats.el = function (parentVal, childVal, vm) { + if (!vm && childVal && typeof childVal !== 'function') { + "production" !== 'production' && warn('The "el" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.'); + return; + } + var ret = childVal || parentVal; + // invoke the element factory if this is instance merge + return vm && typeof ret === 'function' ? ret.call(vm) : ret; +}; + +/** + * Hooks and param attributes are merged as arrays. + */ + +strats.init = strats.created = strats.ready = strats.attached = strats.detached = strats.beforeCompile = strats.compiled = strats.beforeDestroy = strats.destroyed = strats.activate = function (parentVal, childVal) { + return childVal ? parentVal ? parentVal.concat(childVal) : isArray(childVal) ? childVal : [childVal] : parentVal; +}; + +/** + * 0.11 deprecation warning + */ + +strats.paramAttributes = function () { + /* istanbul ignore next */ + "production" !== 'production' && warn('"paramAttributes" option has been deprecated in 0.12. ' + 'Use "props" instead.'); +}; + +/** + * Assets + * + * When a vm is present (instance creation), we need to do + * a three-way merge between constructor options, instance + * options and parent options. + */ + +function mergeAssets(parentVal, childVal) { + var res = Object.create(parentVal); + return childVal ? extend(res, guardArrayAssets(childVal)) : res; +} + +config._assetTypes.forEach(function (type) { + strats[type + 's'] = mergeAssets; +}); + +/** + * Events & Watchers. + * + * Events & watchers hashes should not overwrite one + * another, so we merge them as arrays. + */ + +strats.watch = strats.events = function (parentVal, childVal) { + if (!childVal) return parentVal; + if (!parentVal) return childVal; + var ret = {}; + extend(ret, parentVal); + for (var key in childVal) { + var parent = ret[key]; + var child = childVal[key]; + if (parent && !isArray(parent)) { + parent = [parent]; + } + ret[key] = parent ? parent.concat(child) : [child]; + } + return ret; +}; + +/** + * Other object hashes. + */ + +strats.props = strats.methods = strats.computed = function (parentVal, childVal) { + if (!childVal) return parentVal; + if (!parentVal) return childVal; + var ret = Object.create(null); + extend(ret, parentVal); + extend(ret, childVal); + return ret; +}; + +/** + * Default strategy. + */ + +var defaultStrat = function defaultStrat(parentVal, childVal) { + return childVal === undefined ? parentVal : childVal; +}; + +/** + * Make sure component options get converted to actual + * constructors. + * + * @param {Object} options + */ + +function guardComponents(options) { + if (options.components) { + var components = options.components = guardArrayAssets(options.components); + var ids = Object.keys(components); + var def; + if ("production" !== 'production') { + var map = options._componentNameMap = {}; + } + for (var i = 0, l = ids.length; i < l; i++) { + var key = ids[i]; + if (commonTagRE.test(key) || reservedTagRE.test(key)) { + "production" !== 'production' && warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + key); + continue; + } + // record a all lowercase <-> kebab-case mapping for + // possible custom element case error warning + if ("production" !== 'production') { + map[key.replace(/-/g, '').toLowerCase()] = hyphenate(key); + } + def = components[key]; + if (isPlainObject(def)) { + components[key] = Vue.extend(def); + } + } + } +} + +/** + * Ensure all props option syntax are normalized into the + * Object-based format. + * + * @param {Object} options + */ + +function guardProps(options) { + var props = options.props; + var i, val; + if (isArray(props)) { + options.props = {}; + i = props.length; + while (i--) { + val = props[i]; + if (typeof val === 'string') { + options.props[val] = null; + } else if (val.name) { + options.props[val.name] = val; + } + } + } else if (isPlainObject(props)) { + var keys = Object.keys(props); + i = keys.length; + while (i--) { + val = props[keys[i]]; + if (typeof val === 'function') { + props[keys[i]] = { type: val }; + } + } + } +} + +/** + * Guard an Array-format assets option and converted it + * into the key-value Object format. + * + * @param {Object|Array} assets + * @return {Object} + */ + +function guardArrayAssets(assets) { + if (isArray(assets)) { + var res = {}; + var i = assets.length; + var asset; + while (i--) { + asset = assets[i]; + var id = typeof asset === 'function' ? asset.options && asset.options.name || asset.id : asset.name || asset.id; + if (!id) { + "production" !== 'production' && warn('Array-syntax assets must provide a "name" or "id" field.'); + } else { + res[id] = asset; + } + } + return res; + } + return assets; +} + +/** + * Merge two option objects into a new one. + * Core utility used in both instantiation and inheritance. + * + * @param {Object} parent + * @param {Object} child + * @param {Vue} [vm] - if vm is present, indicates this is + * an instantiation merge. + */ + +function mergeOptions(parent, child, vm) { + guardComponents(child); + guardProps(child); + var options = {}; + var key; + if (child.mixins) { + for (var i = 0, l = child.mixins.length; i < l; i++) { + parent = mergeOptions(parent, child.mixins[i], vm); + } + } + for (key in parent) { + mergeField(key); + } + for (key in child) { + if (!hasOwn(parent, key)) { + mergeField(key); + } + } + function mergeField(key) { + var strat = strats[key] || defaultStrat; + options[key] = strat(parent[key], child[key], vm, key); + } + return options; +} + +/** + * Resolve an asset. + * This function is used because child instances need access + * to assets defined in its ancestor chain. + * + * @param {Object} options + * @param {String} type + * @param {String} id + * @return {Object|Function} + */ + +function resolveAsset(options, type, id) { + /* istanbul ignore if */ + if (typeof id !== 'string') { + return; + } + var assets = options[type]; + var camelizedId; + return assets[id] || + // camelCase ID + assets[camelizedId = camelize(id)] || + // Pascal Case ID + assets[camelizedId.charAt(0).toUpperCase() + camelizedId.slice(1)]; +} + +/** + * Assert asset exists + */ + +function assertAsset(val, type, id) { + if (!val) { + "production" !== 'production' && warn('Failed to resolve ' + type + ': ' + id); + } +} + +var uid$1 = 0; + +/** + * A dep is an observable that can have multiple + * directives subscribing to it. + * + * @constructor + */ +function Dep() { + this.id = uid$1++; + this.subs = []; +} + +// the current target watcher being evaluated. +// this is globally unique because there could be only one +// watcher being evaluated at any time. +Dep.target = null; + +/** + * Add a directive subscriber. + * + * @param {Directive} sub + */ + +Dep.prototype.addSub = function (sub) { + this.subs.push(sub); +}; + +/** + * Remove a directive subscriber. + * + * @param {Directive} sub + */ + +Dep.prototype.removeSub = function (sub) { + this.subs.$remove(sub); +}; + +/** + * Add self as a dependency to the target watcher. + */ + +Dep.prototype.depend = function () { + Dep.target.addDep(this); +}; + +/** + * Notify all subscribers of a new value. + */ + +Dep.prototype.notify = function () { + // stablize the subscriber list first + var subs = toArray(this.subs); + for (var i = 0, l = subs.length; i < l; i++) { + subs[i].update(); + } +}; + +var arrayProto = Array.prototype; +var arrayMethods = Object.create(arrayProto) + +/** + * Intercept mutating methods and emit events + */ + +;['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'].forEach(function (method) { + // cache original method + var original = arrayProto[method]; + def(arrayMethods, method, function mutator() { + // avoid leaking arguments: + // http://jsperf.com/closure-with-arguments + var i = arguments.length; + var args = new Array(i); + while (i--) { + args[i] = arguments[i]; + } + var result = original.apply(this, args); + var ob = this.__ob__; + var inserted; + switch (method) { + case 'push': + inserted = args; + break; + case 'unshift': + inserted = args; + break; + case 'splice': + inserted = args.slice(2); + break; + } + if (inserted) ob.observeArray(inserted); + // notify change + ob.dep.notify(); + return result; + }); +}); + +/** + * Swap the element at the given index with a new value + * and emits corresponding event. + * + * @param {Number} index + * @param {*} val + * @return {*} - replaced element + */ + +def(arrayProto, '$set', function $set(index, val) { + if (index >= this.length) { + this.length = Number(index) + 1; + } + return this.splice(index, 1, val)[0]; +}); + +/** + * Convenience method to remove the element at given index. + * + * @param {Number} index + * @param {*} val + */ + +def(arrayProto, '$remove', function $remove(item) { + /* istanbul ignore if */ + if (!this.length) return; + var index = indexOf(this, item); + if (index > -1) { + return this.splice(index, 1); + } +}); + +var arrayKeys = Object.getOwnPropertyNames(arrayMethods); + +/** + * Observer class that are attached to each observed + * object. Once attached, the observer converts target + * object's property keys into getter/setters that + * collect dependencies and dispatches updates. + * + * @param {Array|Object} value + * @constructor + */ + +function Observer(value) { + this.value = value; + this.dep = new Dep(); + def(value, '__ob__', this); + if (isArray(value)) { + var augment = hasProto ? protoAugment : copyAugment; + augment(value, arrayMethods, arrayKeys); + this.observeArray(value); + } else { + this.walk(value); + } +} + +// Instance methods + +/** + * Walk through each property and convert them into + * getter/setters. This method should only be called when + * value type is Object. + * + * @param {Object} obj + */ + +Observer.prototype.walk = function (obj) { + var keys = Object.keys(obj); + for (var i = 0, l = keys.length; i < l; i++) { + this.convert(keys[i], obj[keys[i]]); + } +}; + +/** + * Observe a list of Array items. + * + * @param {Array} items + */ + +Observer.prototype.observeArray = function (items) { + for (var i = 0, l = items.length; i < l; i++) { + observe(items[i]); + } +}; + +/** + * Convert a property into getter/setter so we can emit + * the events when the property is accessed/changed. + * + * @param {String} key + * @param {*} val + */ + +Observer.prototype.convert = function (key, val) { + defineReactive(this.value, key, val); +}; + +/** + * Add an owner vm, so that when $set/$delete mutations + * happen we can notify owner vms to proxy the keys and + * digest the watchers. This is only called when the object + * is observed as an instance's root $data. + * + * @param {Vue} vm + */ + +Observer.prototype.addVm = function (vm) { + (this.vms || (this.vms = [])).push(vm); +}; + +/** + * Remove an owner vm. This is called when the object is + * swapped out as an instance's $data object. + * + * @param {Vue} vm + */ + +Observer.prototype.removeVm = function (vm) { + this.vms.$remove(vm); +}; + +// helpers + +/** + * Augment an target Object or Array by intercepting + * the prototype chain using __proto__ + * + * @param {Object|Array} target + * @param {Object} proto + */ + +function protoAugment(target, src) { + /* eslint-disable no-proto */ + target.__proto__ = src; + /* eslint-enable no-proto */ +} + +/** + * Augment an target Object or Array by defining + * hidden properties. + * + * @param {Object|Array} target + * @param {Object} proto + */ + +function copyAugment(target, src, keys) { + for (var i = 0, l = keys.length; i < l; i++) { + var key = keys[i]; + def(target, key, src[key]); + } +} + +/** + * Attempt to create an observer instance for a value, + * returns the new observer if successfully observed, + * or the existing observer if the value already has one. + * + * @param {*} value + * @param {Vue} [vm] + * @return {Observer|undefined} + * @static + */ + +function observe(value, vm) { + if (!value || typeof value !== 'object') { + return; + } + var ob; + if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) { + ob = value.__ob__; + } else if ((isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) { + ob = new Observer(value); + } + if (ob && vm) { + ob.addVm(vm); + } + return ob; +} + +/** + * Define a reactive property on an Object. + * + * @param {Object} obj + * @param {String} key + * @param {*} val + */ + +function defineReactive(obj, key, val) { + var dep = new Dep(); + + var property = Object.getOwnPropertyDescriptor(obj, key); + if (property && property.configurable === false) { + return; + } + + // cater for pre-defined getter/setters + var getter = property && property.get; + var setter = property && property.set; + + var childOb = observe(val); + Object.defineProperty(obj, key, { + enumerable: true, + configurable: true, + get: function reactiveGetter() { + var value = getter ? getter.call(obj) : val; + if (Dep.target) { + dep.depend(); + if (childOb) { + childOb.dep.depend(); + } + if (isArray(value)) { + for (var e, i = 0, l = value.length; i < l; i++) { + e = value[i]; + e && e.__ob__ && e.__ob__.dep.depend(); + } + } + } + return value; + }, + set: function reactiveSetter(newVal) { + var value = getter ? getter.call(obj) : val; + if (newVal === value) { + return; + } + if (setter) { + setter.call(obj, newVal); + } else { + val = newVal; + } + childOb = observe(newVal); + dep.notify(); + } + }); +} + + + +var util = Object.freeze({ + defineReactive: defineReactive, + set: set, + del: del, + hasOwn: hasOwn, + isLiteral: isLiteral, + isReserved: isReserved, + _toString: _toString, + toNumber: toNumber, + toBoolean: toBoolean, + stripQuotes: stripQuotes, + camelize: camelize, + hyphenate: hyphenate, + classify: classify, + bind: bind, + toArray: toArray, + extend: extend, + isObject: isObject, + isPlainObject: isPlainObject, + def: def, + debounce: _debounce, + indexOf: indexOf, + cancellable: cancellable, + looseEqual: looseEqual, + isArray: isArray, + hasProto: hasProto, + inBrowser: inBrowser, + devtools: devtools, + isIE9: isIE9, + isAndroid: isAndroid, + get transitionProp () { return transitionProp; }, + get transitionEndEvent () { return transitionEndEvent; }, + get animationProp () { return animationProp; }, + get animationEndEvent () { return animationEndEvent; }, + nextTick: nextTick, + query: query, + inDoc: inDoc, + getAttr: getAttr, + getBindAttr: getBindAttr, + hasBindAttr: hasBindAttr, + before: before, + after: after, + remove: remove, + prepend: prepend, + replace: replace, + on: on, + off: off, + setClass: setClass, + addClass: addClass, + removeClass: removeClass, + extractContent: extractContent, + trimNode: trimNode, + isTemplate: isTemplate, + createAnchor: createAnchor, + findRef: findRef, + mapNodeRange: mapNodeRange, + removeNodeRange: removeNodeRange, + isFragment: isFragment, + getOuterHTML: getOuterHTML, + mergeOptions: mergeOptions, + resolveAsset: resolveAsset, + assertAsset: assertAsset, + checkComponentAttr: checkComponentAttr, + initProp: initProp, + assertProp: assertProp, + coerceProp: coerceProp, + commonTagRE: commonTagRE, + reservedTagRE: reservedTagRE, + get warn () { return warn; } +}); + +var uid = 0; + +function initMixin (Vue) { + /** + * The main init sequence. This is called for every + * instance, including ones that are created from extended + * constructors. + * + * @param {Object} options - this options object should be + * the result of merging class + * options and the options passed + * in to the constructor. + */ + + Vue.prototype._init = function (options) { + options = options || {}; + + this.$el = null; + this.$parent = options.parent; + this.$root = this.$parent ? this.$parent.$root : this; + this.$children = []; + this.$refs = {}; // child vm references + this.$els = {}; // element references + this._watchers = []; // all watchers as an array + this._directives = []; // all directives + + // a uid + this._uid = uid++; + + // a flag to avoid this being observed + this._isVue = true; + + // events bookkeeping + this._events = {}; // registered callbacks + this._eventsCount = {}; // for $broadcast optimization + + // fragment instance properties + this._isFragment = false; + this._fragment = // @type {DocumentFragment} + this._fragmentStart = // @type {Text|Comment} + this._fragmentEnd = null; // @type {Text|Comment} + + // lifecycle state + this._isCompiled = this._isDestroyed = this._isReady = this._isAttached = this._isBeingDestroyed = this._vForRemoving = false; + this._unlinkFn = null; + + // context: + // if this is a transcluded component, context + // will be the common parent vm of this instance + // and its host. + this._context = options._context || this.$parent; + + // scope: + // if this is inside an inline v-for, the scope + // will be the intermediate scope created for this + // repeat fragment. this is used for linking props + // and container directives. + this._scope = options._scope; + + // fragment: + // if this instance is compiled inside a Fragment, it + // needs to reigster itself as a child of that fragment + // for attach/detach to work properly. + this._frag = options._frag; + if (this._frag) { + this._frag.children.push(this); + } + + // push self into parent / transclusion host + if (this.$parent) { + this.$parent.$children.push(this); + } + + // save raw constructor data before merge + // so that we know which properties are provided at + // instantiation. + if ("production" !== 'production') { + this._runtimeData = options.data; + } + + // merge options. + options = this.$options = mergeOptions(this.constructor.options, options, this); + + // set ref + this._updateRef(); + + // initialize data as empty object. + // it will be filled up in _initScope(). + this._data = {}; + + // call init hook + this._callHook('init'); + + // initialize data observation and scope inheritance. + this._initState(); + + // setup event system and option events. + this._initEvents(); + + // call created hook + this._callHook('created'); + + // if `el` option is passed, start compilation. + if (options.el) { + this.$mount(options.el); + } + }; +} + +var pathCache = new Cache(1000); + +// actions +var APPEND = 0; +var PUSH = 1; +var INC_SUB_PATH_DEPTH = 2; +var PUSH_SUB_PATH = 3; + +// states +var BEFORE_PATH = 0; +var IN_PATH = 1; +var BEFORE_IDENT = 2; +var IN_IDENT = 3; +var IN_SUB_PATH = 4; +var IN_SINGLE_QUOTE = 5; +var IN_DOUBLE_QUOTE = 6; +var AFTER_PATH = 7; +var ERROR = 8; + +var pathStateMachine = []; + +pathStateMachine[BEFORE_PATH] = { + 'ws': [BEFORE_PATH], + 'ident': [IN_IDENT, APPEND], + '[': [IN_SUB_PATH], + 'eof': [AFTER_PATH] +}; + +pathStateMachine[IN_PATH] = { + 'ws': [IN_PATH], + '.': [BEFORE_IDENT], + '[': [IN_SUB_PATH], + 'eof': [AFTER_PATH] +}; + +pathStateMachine[BEFORE_IDENT] = { + 'ws': [BEFORE_IDENT], + 'ident': [IN_IDENT, APPEND] +}; + +pathStateMachine[IN_IDENT] = { + 'ident': [IN_IDENT, APPEND], + '0': [IN_IDENT, APPEND], + 'number': [IN_IDENT, APPEND], + 'ws': [IN_PATH, PUSH], + '.': [BEFORE_IDENT, PUSH], + '[': [IN_SUB_PATH, PUSH], + 'eof': [AFTER_PATH, PUSH] +}; + +pathStateMachine[IN_SUB_PATH] = { + "'": [IN_SINGLE_QUOTE, APPEND], + '"': [IN_DOUBLE_QUOTE, APPEND], + '[': [IN_SUB_PATH, INC_SUB_PATH_DEPTH], + ']': [IN_PATH, PUSH_SUB_PATH], + 'eof': ERROR, + 'else': [IN_SUB_PATH, APPEND] +}; + +pathStateMachine[IN_SINGLE_QUOTE] = { + "'": [IN_SUB_PATH, APPEND], + 'eof': ERROR, + 'else': [IN_SINGLE_QUOTE, APPEND] +}; + +pathStateMachine[IN_DOUBLE_QUOTE] = { + '"': [IN_SUB_PATH, APPEND], + 'eof': ERROR, + 'else': [IN_DOUBLE_QUOTE, APPEND] +}; + +/** + * Determine the type of a character in a keypath. + * + * @param {Char} ch + * @return {String} type + */ + +function getPathCharType(ch) { + if (ch === undefined) { + return 'eof'; + } + + var code = ch.charCodeAt(0); + + switch (code) { + case 0x5B: // [ + case 0x5D: // ] + case 0x2E: // . + case 0x22: // " + case 0x27: // ' + case 0x30: + // 0 + return ch; + + case 0x5F: // _ + case 0x24: + // $ + return 'ident'; + + case 0x20: // Space + case 0x09: // Tab + case 0x0A: // Newline + case 0x0D: // Return + case 0xA0: // No-break space + case 0xFEFF: // Byte Order Mark + case 0x2028: // Line Separator + case 0x2029: + // Paragraph Separator + return 'ws'; + } + + // a-z, A-Z + if (code >= 0x61 && code <= 0x7A || code >= 0x41 && code <= 0x5A) { + return 'ident'; + } + + // 1-9 + if (code >= 0x31 && code <= 0x39) { + return 'number'; + } + + return 'else'; +} + +/** + * Format a subPath, return its plain form if it is + * a literal string or number. Otherwise prepend the + * dynamic indicator (*). + * + * @param {String} path + * @return {String} + */ + +function formatSubPath(path) { + var trimmed = path.trim(); + // invalid leading 0 + if (path.charAt(0) === '0' && isNaN(path)) { + return false; + } + return isLiteral(trimmed) ? stripQuotes(trimmed) : '*' + trimmed; +} + +/** + * Parse a string path into an array of segments + * + * @param {String} path + * @return {Array|undefined} + */ + +function parse(path) { + var keys = []; + var index = -1; + var mode = BEFORE_PATH; + var subPathDepth = 0; + var c, newChar, key, type, transition, action, typeMap; + + var actions = []; + + actions[PUSH] = function () { + if (key !== undefined) { + keys.push(key); + key = undefined; + } + }; + + actions[APPEND] = function () { + if (key === undefined) { + key = newChar; + } else { + key += newChar; + } + }; + + actions[INC_SUB_PATH_DEPTH] = function () { + actions[APPEND](); + subPathDepth++; + }; + + actions[PUSH_SUB_PATH] = function () { + if (subPathDepth > 0) { + subPathDepth--; + mode = IN_SUB_PATH; + actions[APPEND](); + } else { + subPathDepth = 0; + key = formatSubPath(key); + if (key === false) { + return false; + } else { + actions[PUSH](); + } + } + }; + + function maybeUnescapeQuote() { + var nextChar = path[index + 1]; + if (mode === IN_SINGLE_QUOTE && nextChar === "'" || mode === IN_DOUBLE_QUOTE && nextChar === '"') { + index++; + newChar = '\\' + nextChar; + actions[APPEND](); + return true; + } + } + + while (mode != null) { + index++; + c = path[index]; + + if (c === '\\' && maybeUnescapeQuote()) { + continue; + } + + type = getPathCharType(c); + typeMap = pathStateMachine[mode]; + transition = typeMap[type] || typeMap['else'] || ERROR; + + if (transition === ERROR) { + return; // parse error + } + + mode = transition[0]; + action = actions[transition[1]]; + if (action) { + newChar = transition[2]; + newChar = newChar === undefined ? c : newChar; + if (action() === false) { + return; + } + } + + if (mode === AFTER_PATH) { + keys.raw = path; + return keys; + } + } +} + +/** + * External parse that check for a cache hit first + * + * @param {String} path + * @return {Array|undefined} + */ + +function parsePath(path) { + var hit = pathCache.get(path); + if (!hit) { + hit = parse(path); + if (hit) { + pathCache.put(path, hit); + } + } + return hit; +} + +/** + * Get from an object from a path string + * + * @param {Object} obj + * @param {String} path + */ + +function getPath(obj, path) { + return parseExpression(path).get(obj); +} + +/** + * Warn against setting non-existent root path on a vm. + */ + +var warnNonExistent; +if ("production" !== 'production') { + warnNonExistent = function (path) { + warn('You are setting a non-existent path "' + path.raw + '" ' + 'on a vm instance. Consider pre-initializing the property ' + 'with the "data" option for more reliable reactivity ' + 'and better performance.'); + }; +} + +/** + * Set on an object from a path + * + * @param {Object} obj + * @param {String | Array} path + * @param {*} val + */ + +function setPath(obj, path, val) { + var original = obj; + if (typeof path === 'string') { + path = parse(path); + } + if (!path || !isObject(obj)) { + return false; + } + var last, key; + for (var i = 0, l = path.length; i < l; i++) { + last = obj; + key = path[i]; + if (key.charAt(0) === '*') { + key = parseExpression(key.slice(1)).get.call(original, original); + } + if (i < l - 1) { + obj = obj[key]; + if (!isObject(obj)) { + obj = {}; + if ("production" !== 'production' && last._isVue) { + warnNonExistent(path); + } + set(last, key, obj); + } + } else { + if (isArray(obj)) { + obj.$set(key, val); + } else if (key in obj) { + obj[key] = val; + } else { + if ("production" !== 'production' && obj._isVue) { + warnNonExistent(path); + } + set(obj, key, val); + } + } + } + return true; +} + +var path = Object.freeze({ + parsePath: parsePath, + getPath: getPath, + setPath: setPath +}); + +var expressionCache = new Cache(1000); + +var allowedKeywords = 'Math,Date,this,true,false,null,undefined,Infinity,NaN,' + 'isNaN,isFinite,decodeURI,decodeURIComponent,encodeURI,' + 'encodeURIComponent,parseInt,parseFloat'; +var allowedKeywordsRE = new RegExp('^(' + allowedKeywords.replace(/,/g, '\\b|') + '\\b)'); + +// keywords that don't make sense inside expressions +var improperKeywords = 'break,case,class,catch,const,continue,debugger,default,' + 'delete,do,else,export,extends,finally,for,function,if,' + 'import,in,instanceof,let,return,super,switch,throw,try,' + 'var,while,with,yield,enum,await,implements,package,' + 'proctected,static,interface,private,public'; +var improperKeywordsRE = new RegExp('^(' + improperKeywords.replace(/,/g, '\\b|') + '\\b)'); + +var wsRE = /\s/g; +var newlineRE = /\n/g; +var saveRE = /[\{,]\s*[\w\$_]+\s*:|('(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`)|new |typeof |void /g; +var restoreRE = /"(\d+)"/g; +var pathTestRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?'\]|\[".*?"\]|\[\d+\]|\[[A-Za-z_$][\w$]*\])*$/; +var identRE = /[^\w$\.](?:[A-Za-z_$][\w$]*)/g; +var booleanLiteralRE = /^(?:true|false)$/; + +/** + * Save / Rewrite / Restore + * + * When rewriting paths found in an expression, it is + * possible for the same letter sequences to be found in + * strings and Object literal property keys. Therefore we + * remove and store these parts in a temporary array, and + * restore them after the path rewrite. + */ + +var saved = []; + +/** + * Save replacer + * + * The save regex can match two possible cases: + * 1. An opening object literal + * 2. A string + * If matched as a plain string, we need to escape its + * newlines, since the string needs to be preserved when + * generating the function body. + * + * @param {String} str + * @param {String} isString - str if matched as a string + * @return {String} - placeholder with index + */ + +function save(str, isString) { + var i = saved.length; + saved[i] = isString ? str.replace(newlineRE, '\\n') : str; + return '"' + i + '"'; +} + +/** + * Path rewrite replacer + * + * @param {String} raw + * @return {String} + */ + +function rewrite(raw) { + var c = raw.charAt(0); + var path = raw.slice(1); + if (allowedKeywordsRE.test(path)) { + return raw; + } else { + path = path.indexOf('"') > -1 ? path.replace(restoreRE, restore) : path; + return c + 'scope.' + path; + } +} + +/** + * Restore replacer + * + * @param {String} str + * @param {String} i - matched save index + * @return {String} + */ + +function restore(str, i) { + return saved[i]; +} + +/** + * Rewrite an expression, prefixing all path accessors with + * `scope.` and generate getter/setter functions. + * + * @param {String} exp + * @return {Function} + */ + +function compileGetter(exp) { + if (improperKeywordsRE.test(exp)) { + "production" !== 'production' && warn('Avoid using reserved keywords in expression: ' + exp); + } + // reset state + saved.length = 0; + // save strings and object literal keys + var body = exp.replace(saveRE, save).replace(wsRE, ''); + // rewrite all paths + // pad 1 space here becaue the regex matches 1 extra char + body = (' ' + body).replace(identRE, rewrite).replace(restoreRE, restore); + return makeGetterFn(body); +} + +/** + * Build a getter function. Requires eval. + * + * We isolate the try/catch so it doesn't affect the + * optimization of the parse function when it is not called. + * + * @param {String} body + * @return {Function|undefined} + */ + +function makeGetterFn(body) { + try { + /* eslint-disable no-new-func */ + return new Function('scope', 'return ' + body + ';'); + /* eslint-enable no-new-func */ + } catch (e) { + "production" !== 'production' && warn('Invalid expression. ' + 'Generated function body: ' + body); + } +} + +/** + * Compile a setter function for the expression. + * + * @param {String} exp + * @return {Function|undefined} + */ + +function compileSetter(exp) { + var path = parsePath(exp); + if (path) { + return function (scope, val) { + setPath(scope, path, val); + }; + } else { + "production" !== 'production' && warn('Invalid setter expression: ' + exp); + } +} + +/** + * Parse an expression into re-written getter/setters. + * + * @param {String} exp + * @param {Boolean} needSet + * @return {Function} + */ + +function parseExpression(exp, needSet) { + exp = exp.trim(); + // try cache + var hit = expressionCache.get(exp); + if (hit) { + if (needSet && !hit.set) { + hit.set = compileSetter(hit.exp); + } + return hit; + } + var res = { exp: exp }; + res.get = isSimplePath(exp) && exp.indexOf('[') < 0 + // optimized super simple getter + ? makeGetterFn('scope.' + exp) + // dynamic getter + : compileGetter(exp); + if (needSet) { + res.set = compileSetter(exp); + } + expressionCache.put(exp, res); + return res; +} + +/** + * Check if an expression is a simple path. + * + * @param {String} exp + * @return {Boolean} + */ + +function isSimplePath(exp) { + return pathTestRE.test(exp) && + // don't treat true/false as paths + !booleanLiteralRE.test(exp) && + // Math constants e.g. Math.PI, Math.E etc. + exp.slice(0, 5) !== 'Math.'; +} + +var expression = Object.freeze({ + parseExpression: parseExpression, + isSimplePath: isSimplePath +}); + +// we have two separate queues: one for directive updates +// and one for user watcher registered via $watch(). +// we want to guarantee directive updates to be called +// before user watchers so that when user watchers are +// triggered, the DOM would have already been in updated +// state. +var queue = []; +var userQueue = []; +var has = {}; +var circular = {}; +var waiting = false; +var internalQueueDepleted = false; + +/** + * Reset the batcher's state. + */ + +function resetBatcherState() { + queue = []; + userQueue = []; + has = {}; + circular = {}; + waiting = internalQueueDepleted = false; +} + +/** + * Flush both queues and run the watchers. + */ + +function flushBatcherQueue() { + runBatcherQueue(queue); + internalQueueDepleted = true; + runBatcherQueue(userQueue); + // dev tool hook + /* istanbul ignore if */ + if (devtools) { + devtools.emit('flush'); + } + resetBatcherState(); +} + +/** + * Run the watchers in a single queue. + * + * @param {Array} queue + */ + +function runBatcherQueue(queue) { + // do not cache length because more watchers might be pushed + // as we run existing watchers + for (var i = 0; i < queue.length; i++) { + var watcher = queue[i]; + var id = watcher.id; + has[id] = null; + watcher.run(); + // in dev build, check and stop circular updates. + if ("production" !== 'production' && has[id] != null) { + circular[id] = (circular[id] || 0) + 1; + if (circular[id] > config._maxUpdateCount) { + queue.splice(has[id], 1); + warn('You may have an infinite update loop for watcher ' + 'with expression: ' + watcher.expression); + } + } + } +} + +/** + * Push a watcher into the watcher queue. + * Jobs with duplicate IDs will be skipped unless it's + * pushed when the queue is being flushed. + * + * @param {Watcher} watcher + * properties: + * - {Number} id + * - {Function} run + */ + +function pushWatcher(watcher) { + var id = watcher.id; + if (has[id] == null) { + // if an internal watcher is pushed, but the internal + // queue is already depleted, we run it immediately. + if (internalQueueDepleted && !watcher.user) { + watcher.run(); + return; + } + // push watcher into appropriate queue + var q = watcher.user ? userQueue : queue; + has[id] = q.length; + q.push(watcher); + // queue the flush + if (!waiting) { + waiting = true; + nextTick(flushBatcherQueue); + } + } +} + +var uid$2 = 0; + +/** + * A watcher parses an expression, collects dependencies, + * and fires callback when the expression value changes. + * This is used for both the $watch() api and directives. + * + * @param {Vue} vm + * @param {String} expression + * @param {Function} cb + * @param {Object} options + * - {Array} filters + * - {Boolean} twoWay + * - {Boolean} deep + * - {Boolean} user + * - {Boolean} sync + * - {Boolean} lazy + * - {Function} [preProcess] + * - {Function} [postProcess] + * @constructor + */ +function Watcher(vm, expOrFn, cb, options) { + // mix in options + if (options) { + extend(this, options); + } + var isFn = typeof expOrFn === 'function'; + this.vm = vm; + vm._watchers.push(this); + this.expression = isFn ? expOrFn.toString() : expOrFn; + this.cb = cb; + this.id = ++uid$2; // uid for batching + this.active = true; + this.dirty = this.lazy; // for lazy watchers + this.deps = Object.create(null); + this.newDeps = null; + this.prevError = null; // for async error stacks + // parse expression for getter/setter + if (isFn) { + this.getter = expOrFn; + this.setter = undefined; + } else { + var res = parseExpression(expOrFn, this.twoWay); + this.getter = res.get; + this.setter = res.set; + } + this.value = this.lazy ? undefined : this.get(); + // state for avoiding false triggers for deep and Array + // watchers during vm._digest() + this.queued = this.shallow = false; +} + +/** + * Add a dependency to this directive. + * + * @param {Dep} dep + */ + +Watcher.prototype.addDep = function (dep) { + var id = dep.id; + if (!this.newDeps[id]) { + this.newDeps[id] = dep; + if (!this.deps[id]) { + this.deps[id] = dep; + dep.addSub(this); + } + } +}; + +/** + * Evaluate the getter, and re-collect dependencies. + */ + +Watcher.prototype.get = function () { + this.beforeGet(); + var scope = this.scope || this.vm; + var value; + try { + value = this.getter.call(scope, scope); + } catch (e) { + if ("production" !== 'production' && config.warnExpressionErrors) { + warn('Error when evaluating expression "' + this.expression + '". ' + (config.debug ? '' : 'Turn on debug mode to see stack trace.'), e); + } + } + // "touch" every property so they are all tracked as + // dependencies for deep watching + if (this.deep) { + traverse(value); + } + if (this.preProcess) { + value = this.preProcess(value); + } + if (this.filters) { + value = scope._applyFilters(value, null, this.filters, false); + } + if (this.postProcess) { + value = this.postProcess(value); + } + this.afterGet(); + return value; +}; + +/** + * Set the corresponding value with the setter. + * + * @param {*} value + */ + +Watcher.prototype.set = function (value) { + var scope = this.scope || this.vm; + if (this.filters) { + value = scope._applyFilters(value, this.value, this.filters, true); + } + try { + this.setter.call(scope, scope, value); + } catch (e) { + if ("production" !== 'production' && config.warnExpressionErrors) { + warn('Error when evaluating setter "' + this.expression + '"', e); + } + } + // two-way sync for v-for alias + var forContext = scope.$forContext; + if (forContext && forContext.alias === this.expression) { + if (forContext.filters) { + "production" !== 'production' && warn('It seems you are using two-way binding on ' + 'a v-for alias (' + this.expression + '), and the ' + 'v-for has filters. This will not work properly. ' + 'Either remove the filters or use an array of ' + 'objects and bind to object properties instead.'); + return; + } + forContext._withLock(function () { + if (scope.$key) { + // original is an object + forContext.rawValue[scope.$key] = value; + } else { + forContext.rawValue.$set(scope.$index, value); + } + }); + } +}; + +/** + * Prepare for dependency collection. + */ + +Watcher.prototype.beforeGet = function () { + Dep.target = this; + this.newDeps = Object.create(null); +}; + +/** + * Clean up for dependency collection. + */ + +Watcher.prototype.afterGet = function () { + Dep.target = null; + var ids = Object.keys(this.deps); + var i = ids.length; + while (i--) { + var id = ids[i]; + if (!this.newDeps[id]) { + this.deps[id].removeSub(this); + } + } + this.deps = this.newDeps; +}; + +/** + * Subscriber interface. + * Will be called when a dependency changes. + * + * @param {Boolean} shallow + */ + +Watcher.prototype.update = function (shallow) { + if (this.lazy) { + this.dirty = true; + } else if (this.sync || !config.async) { + this.run(); + } else { + // if queued, only overwrite shallow with non-shallow, + // but not the other way around. + this.shallow = this.queued ? shallow ? this.shallow : false : !!shallow; + this.queued = true; + // record before-push error stack in debug mode + /* istanbul ignore if */ + if ("production" !== 'production' && config.debug) { + this.prevError = new Error('[vue] async stack trace'); + } + pushWatcher(this); + } +}; + +/** + * Batcher job interface. + * Will be called by the batcher. + */ + +Watcher.prototype.run = function () { + if (this.active) { + var value = this.get(); + if (value !== this.value || + // Deep watchers and watchers on Object/Arrays should fire even + // when the value is the same, because the value may + // have mutated; but only do so if this is a + // non-shallow update (caused by a vm digest). + (isObject(value) || this.deep) && !this.shallow) { + // set new value + var oldValue = this.value; + this.value = value; + // in debug + async mode, when a watcher callbacks + // throws, we also throw the saved before-push error + // so the full cross-tick stack trace is available. + var prevError = this.prevError; + /* istanbul ignore if */ + if ("production" !== 'production' && config.debug && prevError) { + this.prevError = null; + try { + this.cb.call(this.vm, value, oldValue); + } catch (e) { + nextTick(function () { + throw prevError; + }, 0); + throw e; + } + } else { + this.cb.call(this.vm, value, oldValue); + } + } + this.queued = this.shallow = false; + } +}; + +/** + * Evaluate the value of the watcher. + * This only gets called for lazy watchers. + */ + +Watcher.prototype.evaluate = function () { + // avoid overwriting another watcher that is being + // collected. + var current = Dep.target; + this.value = this.get(); + this.dirty = false; + Dep.target = current; +}; + +/** + * Depend on all deps collected by this watcher. + */ + +Watcher.prototype.depend = function () { + var depIds = Object.keys(this.deps); + var i = depIds.length; + while (i--) { + this.deps[depIds[i]].depend(); + } +}; + +/** + * Remove self from all dependencies' subcriber list. + */ + +Watcher.prototype.teardown = function () { + if (this.active) { + // remove self from vm's watcher list + // this is a somewhat expensive operation so we skip it + // if the vm is being destroyed or is performing a v-for + // re-render (the watcher list is then filtered by v-for). + if (!this.vm._isBeingDestroyed && !this.vm._vForRemoving) { + this.vm._watchers.$remove(this); + } + var depIds = Object.keys(this.deps); + var i = depIds.length; + while (i--) { + this.deps[depIds[i]].removeSub(this); + } + this.active = false; + this.vm = this.cb = this.value = null; + } +}; + +/** + * Recrusively traverse an object to evoke all converted + * getters, so that every nested property inside the object + * is collected as a "deep" dependency. + * + * @param {*} val + */ + +function traverse(val) { + var i, keys; + if (isArray(val)) { + i = val.length; + while (i--) traverse(val[i]); + } else if (isObject(val)) { + keys = Object.keys(val); + i = keys.length; + while (i--) traverse(val[keys[i]]); + } +} + +var text$1 = { + + bind: function bind() { + this.attr = this.el.nodeType === 3 ? 'data' : 'textContent'; + }, + + update: function update(value) { + this.el[this.attr] = _toString(value); + } +}; + +var templateCache = new Cache(1000); +var idSelectorCache = new Cache(1000); + +var map = { + efault: [0, '', ''], + legend: [1, '
    ', '
    '], + tr: [2, '', '
    '], + col: [2, '', '
    '] +}; + +map.td = map.th = [3, '', '
    ']; + +map.option = map.optgroup = [1, '']; + +map.thead = map.tbody = map.colgroup = map.caption = map.tfoot = [1, '', '
    ']; + +map.g = map.defs = map.symbol = map.use = map.image = map.text = map.circle = map.ellipse = map.line = map.path = map.polygon = map.polyline = map.rect = [1, '', '']; + +/** + * Check if a node is a supported template node with a + * DocumentFragment content. + * + * @param {Node} node + * @return {Boolean} + */ + +function isRealTemplate(node) { + return isTemplate(node) && isFragment(node.content); +} + +var tagRE$1 = /<([\w:]+)/; +var entityRE = /&#?\w+?;/; + +/** + * Convert a string template to a DocumentFragment. + * Determines correct wrapping by tag types. Wrapping + * strategy found in jQuery & component/domify. + * + * @param {String} templateString + * @param {Boolean} raw + * @return {DocumentFragment} + */ + +function stringToFragment(templateString, raw) { + // try a cache hit first + var cacheKey = raw ? templateString : templateString.trim(); + var hit = templateCache.get(cacheKey); + if (hit) { + return hit; + } + + var frag = document.createDocumentFragment(); + var tagMatch = templateString.match(tagRE$1); + var entityMatch = entityRE.test(templateString); + + if (!tagMatch && !entityMatch) { + // text only, return a single text node. + frag.appendChild(document.createTextNode(templateString)); + } else { + var tag = tagMatch && tagMatch[1]; + var wrap = map[tag] || map.efault; + var depth = wrap[0]; + var prefix = wrap[1]; + var suffix = wrap[2]; + var node = document.createElement('div'); + + node.innerHTML = prefix + templateString + suffix; + while (depth--) { + node = node.lastChild; + } + + var child; + /* eslint-disable no-cond-assign */ + while (child = node.firstChild) { + /* eslint-enable no-cond-assign */ + frag.appendChild(child); + } + } + if (!raw) { + trimNode(frag); + } + templateCache.put(cacheKey, frag); + return frag; +} + +/** + * Convert a template node to a DocumentFragment. + * + * @param {Node} node + * @return {DocumentFragment} + */ + +function nodeToFragment(node) { + // if its a template tag and the browser supports it, + // its content is already a document fragment. + if (isRealTemplate(node)) { + trimNode(node.content); + return node.content; + } + // script template + if (node.tagName === 'SCRIPT') { + return stringToFragment(node.textContent); + } + // normal node, clone it to avoid mutating the original + var clonedNode = cloneNode(node); + var frag = document.createDocumentFragment(); + var child; + /* eslint-disable no-cond-assign */ + while (child = clonedNode.firstChild) { + /* eslint-enable no-cond-assign */ + frag.appendChild(child); + } + trimNode(frag); + return frag; +} + +// Test for the presence of the Safari template cloning bug +// https://bugs.webkit.org/showug.cgi?id=137755 +var hasBrokenTemplate = (function () { + /* istanbul ignore else */ + if (inBrowser) { + var a = document.createElement('div'); + a.innerHTML = ''; + return !a.cloneNode(true).firstChild.innerHTML; + } else { + return false; + } +})(); + +// Test for IE10/11 textarea placeholder clone bug +var hasTextareaCloneBug = (function () { + /* istanbul ignore else */ + if (inBrowser) { + var t = document.createElement('textarea'); + t.placeholder = 't'; + return t.cloneNode(true).value === 't'; + } else { + return false; + } +})(); + +/** + * 1. Deal with Safari cloning nested