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Diffstat (limited to 'third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules')
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.js2
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.map1
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone.js1920
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.js10253
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.min.js4
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.min.map1
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-app-css/index.css376
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.css141
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.js249
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore-min.js6
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore-min.map1
-rw-r--r--third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore.js1548
12 files changed, 14502 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.js
new file mode 100644
index 0000000000..435a72c9f1
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.js
@@ -0,0 +1,2 @@
+(function(t){var e=typeof self=="object"&&self.self===self&&self||typeof global=="object"&&global.global===global&&global;if(typeof define==="function"&&define.amd){define(["underscore","jquery","exports"],function(i,r,n){e.Backbone=t(e,n,i,r)})}else if(typeof exports!=="undefined"){var i=require("underscore"),r;try{r=require("jquery")}catch(n){}t(e,exports,i,r)}else{e.Backbone=t(e,{},e._,e.jQuery||e.Zepto||e.ender||e.$)}})(function(t,e,i,r){var n=t.Backbone;var s=Array.prototype.slice;e.VERSION="1.3.3";e.$=r;e.noConflict=function(){t.Backbone=n;return this};e.emulateHTTP=false;e.emulateJSON=false;var a=function(t,e,r){switch(t){case 1:return function(){return i[e](this[r])};case 2:return function(t){return i[e](this[r],t)};case 3:return function(t,n){return i[e](this[r],o(t,this),n)};case 4:return function(t,n,s){return i[e](this[r],o(t,this),n,s)};default:return function(){var t=s.call(arguments);t.unshift(this[r]);return i[e].apply(i,t)}}};var h=function(t,e,r){i.each(e,function(e,n){if(i[n])t.prototype[n]=a(e,n,r)})};var o=function(t,e){if(i.isFunction(t))return t;if(i.isObject(t)&&!e._isModel(t))return l(t);if(i.isString(t))return function(e){return e.get(t)};return t};var l=function(t){var e=i.matches(t);return function(t){return e(t.attributes)}};var u=e.Events={};var c=/\s+/;var f=function(t,e,r,n,s){var a=0,h;if(r&&typeof r==="object"){if(n!==void 0&&"context"in s&&s.context===void 0)s.context=n;for(h=i.keys(r);a<h.length;a++){e=f(t,e,h[a],r[h[a]],s)}}else if(r&&c.test(r)){for(h=r.split(c);a<h.length;a++){e=t(e,h[a],n,s)}}else{e=t(e,r,n,s)}return e};u.on=function(t,e,i){return d(this,t,e,i)};var d=function(t,e,i,r,n){t._events=f(v,t._events||{},e,i,{context:r,ctx:t,listening:n});if(n){var s=t._listeners||(t._listeners={});s[n.id]=n}return t};u.listenTo=function(t,e,r){if(!t)return this;var n=t._listenId||(t._listenId=i.uniqueId("l"));var s=this._listeningTo||(this._listeningTo={});var a=s[n];if(!a){var h=this._listenId||(this._listenId=i.uniqueId("l"));a=s[n]={obj:t,objId:n,id:h,listeningTo:s,count:0}}d(t,e,r,this,a);return this};var v=function(t,e,i,r){if(i){var n=t[e]||(t[e]=[]);var s=r.context,a=r.ctx,h=r.listening;if(h)h.count++;n.push({callback:i,context:s,ctx:s||a,listening:h})}return t};u.off=function(t,e,i){if(!this._events)return this;this._events=f(g,this._events,t,e,{context:i,listeners:this._listeners});return this};u.stopListening=function(t,e,r){var n=this._listeningTo;if(!n)return this;var s=t?[t._listenId]:i.keys(n);for(var a=0;a<s.length;a++){var h=n[s[a]];if(!h)break;h.obj.off(e,r,this)}return this};var g=function(t,e,r,n){if(!t)return;var s=0,a;var h=n.context,o=n.listeners;if(!e&&!r&&!h){var l=i.keys(o);for(;s<l.length;s++){a=o[l[s]];delete o[a.id];delete a.listeningTo[a.objId]}return}var u=e?[e]:i.keys(t);for(;s<u.length;s++){e=u[s];var c=t[e];if(!c)break;var f=[];for(var d=0;d<c.length;d++){var v=c[d];if(r&&r!==v.callback&&r!==v.callback._callback||h&&h!==v.context){f.push(v)}else{a=v.listening;if(a&&--a.count===0){delete o[a.id];delete a.listeningTo[a.objId]}}}if(f.length){t[e]=f}else{delete t[e]}}return t};u.once=function(t,e,r){var n=f(p,{},t,e,i.bind(this.off,this));if(typeof t==="string"&&r==null)e=void 0;return this.on(n,e,r)};u.listenToOnce=function(t,e,r){var n=f(p,{},e,r,i.bind(this.stopListening,this,t));return this.listenTo(t,n)};var p=function(t,e,r,n){if(r){var s=t[e]=i.once(function(){n(e,s);r.apply(this,arguments)});s._callback=r}return t};u.trigger=function(t){if(!this._events)return this;var e=Math.max(0,arguments.length-1);var i=Array(e);for(var r=0;r<e;r++)i[r]=arguments[r+1];f(m,this._events,t,void 0,i);return this};var m=function(t,e,i,r){if(t){var n=t[e];var s=t.all;if(n&&s)s=s.slice();if(n)_(n,r);if(s)_(s,[e].concat(r))}return t};var _=function(t,e){var i,r=-1,n=t.length,s=e[0],a=e[1],h=e[2];switch(e.length){case 0:while(++r<n)(i=t[r]).callback.call(i.ctx);return;case 1:while(++r<n)(i=t[r]).callback.call(i.ctx,s);return;case 2:while(++r<n)(i=t[r]).callback.call(i.ctx,s,a);return;case 3:while(++r<n)(i=t[r]).callback.call(i.ctx,s,a,h);return;default:while(++r<n)(i=t[r]).callback.apply(i.ctx,e);return}};u.bind=u.on;u.unbind=u.off;i.extend(e,u);var y=e.Model=function(t,e){var r=t||{};e||(e={});this.cid=i.uniqueId(this.cidPrefix);this.attributes={};if(e.collection)this.collection=e.collection;if(e.parse)r=this.parse(r,e)||{};var n=i.result(this,"defaults");r=i.defaults(i.extend({},n,r),n);this.set(r,e);this.changed={};this.initialize.apply(this,arguments)};i.extend(y.prototype,u,{changed:null,validationError:null,idAttribute:"id",cidPrefix:"c",initialize:function(){},toJSON:function(t){return i.clone(this.attributes)},sync:function(){return e.sync.apply(this,arguments)},get:function(t){return this.attributes[t]},escape:function(t){return i.escape(this.get(t))},has:function(t){return this.get(t)!=null},matches:function(t){return!!i.iteratee(t,this)(this.attributes)},set:function(t,e,r){if(t==null)return this;var n;if(typeof t==="object"){n=t;r=e}else{(n={})[t]=e}r||(r={});if(!this._validate(n,r))return false;var s=r.unset;var a=r.silent;var h=[];var o=this._changing;this._changing=true;if(!o){this._previousAttributes=i.clone(this.attributes);this.changed={}}var l=this.attributes;var u=this.changed;var c=this._previousAttributes;for(var f in n){e=n[f];if(!i.isEqual(l[f],e))h.push(f);if(!i.isEqual(c[f],e)){u[f]=e}else{delete u[f]}s?delete l[f]:l[f]=e}if(this.idAttribute in n)this.id=this.get(this.idAttribute);if(!a){if(h.length)this._pending=r;for(var d=0;d<h.length;d++){this.trigger("change:"+h[d],this,l[h[d]],r)}}if(o)return this;if(!a){while(this._pending){r=this._pending;this._pending=false;this.trigger("change",this,r)}}this._pending=false;this._changing=false;return this},unset:function(t,e){return this.set(t,void 0,i.extend({},e,{unset:true}))},clear:function(t){var e={};for(var r in this.attributes)e[r]=void 0;return this.set(e,i.extend({},t,{unset:true}))},hasChanged:function(t){if(t==null)return!i.isEmpty(this.changed);return i.has(this.changed,t)},changedAttributes:function(t){if(!t)return this.hasChanged()?i.clone(this.changed):false;var e=this._changing?this._previousAttributes:this.attributes;var r={};for(var n in t){var s=t[n];if(i.isEqual(e[n],s))continue;r[n]=s}return i.size(r)?r:false},previous:function(t){if(t==null||!this._previousAttributes)return null;return this._previousAttributes[t]},previousAttributes:function(){return i.clone(this._previousAttributes)},fetch:function(t){t=i.extend({parse:true},t);var e=this;var r=t.success;t.success=function(i){var n=t.parse?e.parse(i,t):i;if(!e.set(n,t))return false;if(r)r.call(t.context,e,i,t);e.trigger("sync",e,i,t)};B(this,t);return this.sync("read",this,t)},save:function(t,e,r){var n;if(t==null||typeof t==="object"){n=t;r=e}else{(n={})[t]=e}r=i.extend({validate:true,parse:true},r);var s=r.wait;if(n&&!s){if(!this.set(n,r))return false}else if(!this._validate(n,r)){return false}var a=this;var h=r.success;var o=this.attributes;r.success=function(t){a.attributes=o;var e=r.parse?a.parse(t,r):t;if(s)e=i.extend({},n,e);if(e&&!a.set(e,r))return false;if(h)h.call(r.context,a,t,r);a.trigger("sync",a,t,r)};B(this,r);if(n&&s)this.attributes=i.extend({},o,n);var l=this.isNew()?"create":r.patch?"patch":"update";if(l==="patch"&&!r.attrs)r.attrs=n;var u=this.sync(l,this,r);this.attributes=o;return u},destroy:function(t){t=t?i.clone(t):{};var e=this;var r=t.success;var n=t.wait;var s=function(){e.stopListening();e.trigger("destroy",e,e.collection,t)};t.success=function(i){if(n)s();if(r)r.call(t.context,e,i,t);if(!e.isNew())e.trigger("sync",e,i,t)};var a=false;if(this.isNew()){i.defer(t.success)}else{B(this,t);a=this.sync("delete",this,t)}if(!n)s();return a},url:function(){var t=i.result(this,"urlRoot")||i.result(this.collection,"url")||F();if(this.isNew())return t;var e=this.get(this.idAttribute);return t.replace(/[^\/]$/,"$&/")+encodeURIComponent(e)},parse:function(t,e){return t},clone:function(){return new this.constructor(this.attributes)},isNew:function(){return!this.has(this.idAttribute)},isValid:function(t){return this._validate({},i.extend({},t,{validate:true}))},_validate:function(t,e){if(!e.validate||!this.validate)return true;t=i.extend({},this.attributes,t);var r=this.validationError=this.validate(t,e)||null;if(!r)return true;this.trigger("invalid",this,r,i.extend(e,{validationError:r}));return false}});var b={keys:1,values:1,pairs:1,invert:1,pick:0,omit:0,chain:1,isEmpty:1};h(y,b,"attributes");var x=e.Collection=function(t,e){e||(e={});if(e.model)this.model=e.model;if(e.comparator!==void 0)this.comparator=e.comparator;this._reset();this.initialize.apply(this,arguments);if(t)this.reset(t,i.extend({silent:true},e))};var w={add:true,remove:true,merge:true};var E={add:true,remove:false};var I=function(t,e,i){i=Math.min(Math.max(i,0),t.length);var r=Array(t.length-i);var n=e.length;var s;for(s=0;s<r.length;s++)r[s]=t[s+i];for(s=0;s<n;s++)t[s+i]=e[s];for(s=0;s<r.length;s++)t[s+n+i]=r[s]};i.extend(x.prototype,u,{model:y,initialize:function(){},toJSON:function(t){return this.map(function(e){return e.toJSON(t)})},sync:function(){return e.sync.apply(this,arguments)},add:function(t,e){return this.set(t,i.extend({merge:false},e,E))},remove:function(t,e){e=i.extend({},e);var r=!i.isArray(t);t=r?[t]:t.slice();var n=this._removeModels(t,e);if(!e.silent&&n.length){e.changes={added:[],merged:[],removed:n};this.trigger("update",this,e)}return r?n[0]:n},set:function(t,e){if(t==null)return;e=i.extend({},w,e);if(e.parse&&!this._isModel(t)){t=this.parse(t,e)||[]}var r=!i.isArray(t);t=r?[t]:t.slice();var n=e.at;if(n!=null)n=+n;if(n>this.length)n=this.length;if(n<0)n+=this.length+1;var s=[];var a=[];var h=[];var o=[];var l={};var u=e.add;var c=e.merge;var f=e.remove;var d=false;var v=this.comparator&&n==null&&e.sort!==false;var g=i.isString(this.comparator)?this.comparator:null;var p,m;for(m=0;m<t.length;m++){p=t[m];var _=this.get(p);if(_){if(c&&p!==_){var y=this._isModel(p)?p.attributes:p;if(e.parse)y=_.parse(y,e);_.set(y,e);h.push(_);if(v&&!d)d=_.hasChanged(g)}if(!l[_.cid]){l[_.cid]=true;s.push(_)}t[m]=_}else if(u){p=t[m]=this._prepareModel(p,e);if(p){a.push(p);this._addReference(p,e);l[p.cid]=true;s.push(p)}}}if(f){for(m=0;m<this.length;m++){p=this.models[m];if(!l[p.cid])o.push(p)}if(o.length)this._removeModels(o,e)}var b=false;var x=!v&&u&&f;if(s.length&&x){b=this.length!==s.length||i.some(this.models,function(t,e){return t!==s[e]});this.models.length=0;I(this.models,s,0);this.length=this.models.length}else if(a.length){if(v)d=true;I(this.models,a,n==null?this.length:n);this.length=this.models.length}if(d)this.sort({silent:true});if(!e.silent){for(m=0;m<a.length;m++){if(n!=null)e.index=n+m;p=a[m];p.trigger("add",p,this,e)}if(d||b)this.trigger("sort",this,e);if(a.length||o.length||h.length){e.changes={added:a,removed:o,merged:h};this.trigger("update",this,e)}}return r?t[0]:t},reset:function(t,e){e=e?i.clone(e):{};for(var r=0;r<this.models.length;r++){this._removeReference(this.models[r],e)}e.previousModels=this.models;this._reset();t=this.add(t,i.extend({silent:true},e));if(!e.silent)this.trigger("reset",this,e);return t},push:function(t,e){return this.add(t,i.extend({at:this.length},e))},pop:function(t){var e=this.at(this.length-1);return this.remove(e,t)},unshift:function(t,e){return this.add(t,i.extend({at:0},e))},shift:function(t){var e=this.at(0);return this.remove(e,t)},slice:function(){return s.apply(this.models,arguments)},get:function(t){if(t==null)return void 0;return this._byId[t]||this._byId[this.modelId(t.attributes||t)]||t.cid&&this._byId[t.cid]},has:function(t){return this.get(t)!=null},at:function(t){if(t<0)t+=this.length;return this.models[t]},where:function(t,e){return this[e?"find":"filter"](t)},findWhere:function(t){return this.where(t,true)},sort:function(t){var e=this.comparator;if(!e)throw new Error("Cannot sort a set without a comparator");t||(t={});var r=e.length;if(i.isFunction(e))e=i.bind(e,this);if(r===1||i.isString(e)){this.models=this.sortBy(e)}else{this.models.sort(e)}if(!t.silent)this.trigger("sort",this,t);return this},pluck:function(t){return this.map(t+"")},fetch:function(t){t=i.extend({parse:true},t);var e=t.success;var r=this;t.success=function(i){var n=t.reset?"reset":"set";r[n](i,t);if(e)e.call(t.context,r,i,t);r.trigger("sync",r,i,t)};B(this,t);return this.sync("read",this,t)},create:function(t,e){e=e?i.clone(e):{};var r=e.wait;t=this._prepareModel(t,e);if(!t)return false;if(!r)this.add(t,e);var n=this;var s=e.success;e.success=function(t,e,i){if(r)n.add(t,i);if(s)s.call(i.context,t,e,i)};t.save(null,e);return t},parse:function(t,e){return t},clone:function(){return new this.constructor(this.models,{model:this.model,comparator:this.comparator})},modelId:function(t){return t[this.model.prototype.idAttribute||"id"]},_reset:function(){this.length=0;this.models=[];this._byId={}},_prepareModel:function(t,e){if(this._isModel(t)){if(!t.collection)t.collection=this;return t}e=e?i.clone(e):{};e.collection=this;var r=new this.model(t,e);if(!r.validationError)return r;this.trigger("invalid",this,r.validationError,e);return false},_removeModels:function(t,e){var i=[];for(var r=0;r<t.length;r++){var n=this.get(t[r]);if(!n)continue;var s=this.indexOf(n);this.models.splice(s,1);this.length--;delete this._byId[n.cid];var a=this.modelId(n.attributes);if(a!=null)delete this._byId[a];if(!e.silent){e.index=s;n.trigger("remove",n,this,e)}i.push(n);this._removeReference(n,e)}return i},_isModel:function(t){return t instanceof y},_addReference:function(t,e){this._byId[t.cid]=t;var i=this.modelId(t.attributes);if(i!=null)this._byId[i]=t;t.on("all",this._onModelEvent,this)},_removeReference:function(t,e){delete this._byId[t.cid];var i=this.modelId(t.attributes);if(i!=null)delete this._byId[i];if(this===t.collection)delete t.collection;t.off("all",this._onModelEvent,this)},_onModelEvent:function(t,e,i,r){if(e){if((t==="add"||t==="remove")&&i!==this)return;if(t==="destroy")this.remove(e,r);if(t==="change"){var n=this.modelId(e.previousAttributes());var s=this.modelId(e.attributes);if(n!==s){if(n!=null)delete this._byId[n];if(s!=null)this._byId[s]=e}}}this.trigger.apply(this,arguments)}});var S={forEach:3,each:3,map:3,collect:3,reduce:0,foldl:0,inject:0,reduceRight:0,foldr:0,find:3,detect:3,filter:3,select:3,reject:3,every:3,all:3,some:3,any:3,include:3,includes:3,contains:3,invoke:0,max:3,min:3,toArray:1,size:1,first:3,head:3,take:3,initial:3,rest:3,tail:3,drop:3,last:3,without:0,difference:0,indexOf:3,shuffle:1,lastIndexOf:3,isEmpty:1,chain:1,sample:3,partition:3,groupBy:3,countBy:3,sortBy:3,indexBy:3,findIndex:3,findLastIndex:3};h(x,S,"models");var k=e.View=function(t){this.cid=i.uniqueId("view");i.extend(this,i.pick(t,P));this._ensureElement();this.initialize.apply(this,arguments)};var T=/^(\S+)\s*(.*)$/;var P=["model","collection","el","id","attributes","className","tagName","events"];i.extend(k.prototype,u,{tagName:"div",$:function(t){return this.$el.find(t)},initialize:function(){},render:function(){return this},remove:function(){this._removeElement();this.stopListening();return 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diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.map b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone-min.map
new file mode 100644
index 0000000000..0e1ce4e1f7
--- /dev/null
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diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone.js
new file mode 100644
index 0000000000..55ccb22bd0
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/backbone/backbone.js
@@ -0,0 +1,1920 @@
+// Backbone.js 1.3.3
+
+// (c) 2010-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Backbone may be freely distributed under the MIT license.
+// For all details and documentation:
+// http://backbonejs.org
+
+(function(factory) {
+
+ // Establish the root object, `window` (`self`) in the browser, or `global` on the server.
+ // We use `self` instead of `window` for `WebWorker` support.
+ var root = (typeof self == 'object' && self.self === self && self) ||
+ (typeof global == 'object' && global.global === global && global);
+
+ // Set up Backbone appropriately for the environment. Start with AMD.
+ if (typeof define === 'function' && define.amd) {
+ define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
+ // Export global even in AMD case in case this script is loaded with
+ // others that may still expect a global Backbone.
+ root.Backbone = factory(root, exports, _, $);
+ });
+
+ // Next for Node.js or CommonJS. jQuery may not be needed as a module.
+ } else if (typeof exports !== 'undefined') {
+ var _ = require('underscore'), $;
+ try { $ = require('jquery'); } catch (e) {}
+ factory(root, exports, _, $);
+
+ // Finally, as a browser global.
+ } else {
+ root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
+ }
+
+})(function(root, Backbone, _, $) {
+
+ // Initial Setup
+ // -------------
+
+ // Save the previous value of the `Backbone` variable, so that it can be
+ // restored later on, if `noConflict` is used.
+ var previousBackbone = root.Backbone;
+
+ // Create a local reference to a common array method we'll want to use later.
+ var slice = Array.prototype.slice;
+
+ // Current version of the library. Keep in sync with `package.json`.
+ Backbone.VERSION = '1.3.3';
+
+ // For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
+ // the `$` variable.
+ Backbone.$ = $;
+
+ // Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
+ // to its previous owner. Returns a reference to this Backbone object.
+ Backbone.noConflict = function() {
+ root.Backbone = previousBackbone;
+ return this;
+ };
+
+ // Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option
+ // will fake `"PATCH"`, `"PUT"` and `"DELETE"` requests via the `_method` parameter and
+ // set a `X-Http-Method-Override` header.
+ Backbone.emulateHTTP = false;
+
+ // Turn on `emulateJSON` to support legacy servers that can't deal with direct
+ // `application/json` requests ... this will encode the body as
+ // `application/x-www-form-urlencoded` instead and will send the model in a
+ // form param named `model`.
+ Backbone.emulateJSON = false;
+
+ // Proxy Backbone class methods to Underscore functions, wrapping the model's
+ // `attributes` object or collection's `models` array behind the scenes.
+ //
+ // collection.filter(function(model) { return model.get('age') > 10 });
+ // collection.each(this.addView);
+ //
+ // `Function#apply` can be slow so we use the method's arg count, if we know it.
+ var addMethod = function(length, method, attribute) {
+ switch (length) {
+ case 1: return function() {
+ return _[method](this[attribute]);
+ };
+ case 2: return function(value) {
+ return _[method](this[attribute], value);
+ };
+ case 3: return function(iteratee, context) {
+ return _[method](this[attribute], cb(iteratee, this), context);
+ };
+ case 4: return function(iteratee, defaultVal, context) {
+ return _[method](this[attribute], cb(iteratee, this), defaultVal, context);
+ };
+ default: return function() {
+ var args = slice.call(arguments);
+ args.unshift(this[attribute]);
+ return _[method].apply(_, args);
+ };
+ }
+ };
+ var addUnderscoreMethods = function(Class, methods, attribute) {
+ _.each(methods, function(length, method) {
+ if (_[method]) Class.prototype[method] = addMethod(length, method, attribute);
+ });
+ };
+
+ // Support `collection.sortBy('attr')` and `collection.findWhere({id: 1})`.
+ var cb = function(iteratee, instance) {
+ if (_.isFunction(iteratee)) return iteratee;
+ if (_.isObject(iteratee) && !instance._isModel(iteratee)) return modelMatcher(iteratee);
+ if (_.isString(iteratee)) return function(model) { return model.get(iteratee); };
+ return iteratee;
+ };
+ var modelMatcher = function(attrs) {
+ var matcher = _.matches(attrs);
+ return function(model) {
+ return matcher(model.attributes);
+ };
+ };
+
+ // Backbone.Events
+ // ---------------
+
+ // A module that can be mixed in to *any object* in order to provide it with
+ // a custom event channel. You may bind a callback to an event with `on` or
+ // remove with `off`; `trigger`-ing an event fires all callbacks in
+ // succession.
+ //
+ // var object = {};
+ // _.extend(object, Backbone.Events);
+ // object.on('expand', function(){ alert('expanded'); });
+ // object.trigger('expand');
+ //
+ var Events = Backbone.Events = {};
+
+ // Regular expression used to split event strings.
+ var eventSplitter = /\s+/;
+
+ // Iterates over the standard `event, callback` (as well as the fancy multiple
+ // space-separated events `"change blur", callback` and jQuery-style event
+ // maps `{event: callback}`).
+ var eventsApi = function(iteratee, events, name, callback, opts) {
+ var i = 0, names;
+ if (name && typeof name === 'object') {
+ // Handle event maps.
+ if (callback !== void 0 && 'context' in opts && opts.context === void 0) opts.context = callback;
+ for (names = _.keys(name); i < names.length ; i++) {
+ events = eventsApi(iteratee, events, names[i], name[names[i]], opts);
+ }
+ } else if (name && eventSplitter.test(name)) {
+ // Handle space-separated event names by delegating them individually.
+ for (names = name.split(eventSplitter); i < names.length; i++) {
+ events = iteratee(events, names[i], callback, opts);
+ }
+ } else {
+ // Finally, standard events.
+ events = iteratee(events, name, callback, opts);
+ }
+ return events;
+ };
+
+ // Bind an event to a `callback` function. Passing `"all"` will bind
+ // the callback to all events fired.
+ Events.on = function(name, callback, context) {
+ return internalOn(this, name, callback, context);
+ };
+
+ // Guard the `listening` argument from the public API.
+ var internalOn = function(obj, name, callback, context, listening) {
+ obj._events = eventsApi(onApi, obj._events || {}, name, callback, {
+ context: context,
+ ctx: obj,
+ listening: listening
+ });
+
+ if (listening) {
+ var listeners = obj._listeners || (obj._listeners = {});
+ listeners[listening.id] = listening;
+ }
+
+ return obj;
+ };
+
+ // Inversion-of-control versions of `on`. Tell *this* object to listen to
+ // an event in another object... keeping track of what it's listening to
+ // for easier unbinding later.
+ Events.listenTo = function(obj, name, callback) {
+ if (!obj) return this;
+ var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
+ var listeningTo = this._listeningTo || (this._listeningTo = {});
+ var listening = listeningTo[id];
+
+ // This object is not listening to any other events on `obj` yet.
+ // Setup the necessary references to track the listening callbacks.
+ if (!listening) {
+ var thisId = this._listenId || (this._listenId = _.uniqueId('l'));
+ listening = listeningTo[id] = {obj: obj, objId: id, id: thisId, listeningTo: listeningTo, count: 0};
+ }
+
+ // Bind callbacks on obj, and keep track of them on listening.
+ internalOn(obj, name, callback, this, listening);
+ return this;
+ };
+
+ // The reducing API that adds a callback to the `events` object.
+ var onApi = function(events, name, callback, options) {
+ if (callback) {
+ var handlers = events[name] || (events[name] = []);
+ var context = options.context, ctx = options.ctx, listening = options.listening;
+ if (listening) listening.count++;
+
+ handlers.push({callback: callback, context: context, ctx: context || ctx, listening: listening});
+ }
+ return events;
+ };
+
+ // Remove one or many callbacks. If `context` is null, removes all
+ // callbacks with that function. If `callback` is null, removes all
+ // callbacks for the event. If `name` is null, removes all bound
+ // callbacks for all events.
+ Events.off = function(name, callback, context) {
+ if (!this._events) return this;
+ this._events = eventsApi(offApi, this._events, name, callback, {
+ context: context,
+ listeners: this._listeners
+ });
+ return this;
+ };
+
+ // Tell this object to stop listening to either specific events ... or
+ // to every object it's currently listening to.
+ Events.stopListening = function(obj, name, callback) {
+ var listeningTo = this._listeningTo;
+ if (!listeningTo) return this;
+
+ var ids = obj ? [obj._listenId] : _.keys(listeningTo);
+
+ for (var i = 0; i < ids.length; i++) {
+ var listening = listeningTo[ids[i]];
+
+ // If listening doesn't exist, this object is not currently
+ // listening to obj. Break out early.
+ if (!listening) break;
+
+ listening.obj.off(name, callback, this);
+ }
+
+ return this;
+ };
+
+ // The reducing API that removes a callback from the `events` object.
+ var offApi = function(events, name, callback, options) {
+ if (!events) return;
+
+ var i = 0, listening;
+ var context = options.context, listeners = options.listeners;
+
+ // Delete all events listeners and "drop" events.
+ if (!name && !callback && !context) {
+ var ids = _.keys(listeners);
+ for (; i < ids.length; i++) {
+ listening = listeners[ids[i]];
+ delete listeners[listening.id];
+ delete listening.listeningTo[listening.objId];
+ }
+ return;
+ }
+
+ var names = name ? [name] : _.keys(events);
+ for (; i < names.length; i++) {
+ name = names[i];
+ var handlers = events[name];
+
+ // Bail out if there are no events stored.
+ if (!handlers) break;
+
+ // Replace events if there are any remaining. Otherwise, clean up.
+ var remaining = [];
+ for (var j = 0; j < handlers.length; j++) {
+ var handler = handlers[j];
+ if (
+ callback && callback !== handler.callback &&
+ callback !== handler.callback._callback ||
+ context && context !== handler.context
+ ) {
+ remaining.push(handler);
+ } else {
+ listening = handler.listening;
+ if (listening && --listening.count === 0) {
+ delete listeners[listening.id];
+ delete listening.listeningTo[listening.objId];
+ }
+ }
+ }
+
+ // Update tail event if the list has any events. Otherwise, clean up.
+ if (remaining.length) {
+ events[name] = remaining;
+ } else {
+ delete events[name];
+ }
+ }
+ return events;
+ };
+
+ // Bind an event to only be triggered a single time. After the first time
+ // the callback is invoked, its listener will be removed. If multiple events
+ // are passed in using the space-separated syntax, the handler will fire
+ // once for each event, not once for a combination of all events.
+ Events.once = function(name, callback, context) {
+ // Map the event into a `{event: once}` object.
+ var events = eventsApi(onceMap, {}, name, callback, _.bind(this.off, this));
+ if (typeof name === 'string' && context == null) callback = void 0;
+ return this.on(events, callback, context);
+ };
+
+ // Inversion-of-control versions of `once`.
+ Events.listenToOnce = function(obj, name, callback) {
+ // Map the event into a `{event: once}` object.
+ var events = eventsApi(onceMap, {}, name, callback, _.bind(this.stopListening, this, obj));
+ return this.listenTo(obj, events);
+ };
+
+ // Reduces the event callbacks into a map of `{event: onceWrapper}`.
+ // `offer` unbinds the `onceWrapper` after it has been called.
+ var onceMap = function(map, name, callback, offer) {
+ if (callback) {
+ var once = map[name] = _.once(function() {
+ offer(name, once);
+ callback.apply(this, arguments);
+ });
+ once._callback = callback;
+ }
+ return map;
+ };
+
+ // Trigger one or many events, firing all bound callbacks. Callbacks are
+ // passed the same arguments as `trigger` is, apart from the event name
+ // (unless you're listening on `"all"`, which will cause your callback to
+ // receive the true name of the event as the first argument).
+ Events.trigger = function(name) {
+ if (!this._events) return this;
+
+ var length = Math.max(0, arguments.length - 1);
+ var args = Array(length);
+ for (var i = 0; i < length; i++) args[i] = arguments[i + 1];
+
+ eventsApi(triggerApi, this._events, name, void 0, args);
+ return this;
+ };
+
+ // Handles triggering the appropriate event callbacks.
+ var triggerApi = function(objEvents, name, callback, args) {
+ if (objEvents) {
+ var events = objEvents[name];
+ var allEvents = objEvents.all;
+ if (events && allEvents) allEvents = allEvents.slice();
+ if (events) triggerEvents(events, args);
+ if (allEvents) triggerEvents(allEvents, [name].concat(args));
+ }
+ return objEvents;
+ };
+
+ // A difficult-to-believe, but optimized internal dispatch function for
+ // triggering events. Tries to keep the usual cases speedy (most internal
+ // Backbone events have 3 arguments).
+ var triggerEvents = function(events, args) {
+ var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
+ switch (args.length) {
+ case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
+ case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
+ case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
+ case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
+ default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args); return;
+ }
+ };
+
+ // Aliases for backwards compatibility.
+ Events.bind = Events.on;
+ Events.unbind = Events.off;
+
+ // Allow the `Backbone` object to serve as a global event bus, for folks who
+ // want global "pubsub" in a convenient place.
+ _.extend(Backbone, Events);
+
+ // Backbone.Model
+ // --------------
+
+ // Backbone **Models** are the basic data object in the framework --
+ // frequently representing a row in a table in a database on your server.
+ // A discrete chunk of data and a bunch of useful, related methods for
+ // performing computations and transformations on that data.
+
+ // Create a new model with the specified attributes. A client id (`cid`)
+ // is automatically generated and assigned for you.
+ var Model = Backbone.Model = function(attributes, options) {
+ var attrs = attributes || {};
+ options || (options = {});
+ this.cid = _.uniqueId(this.cidPrefix);
+ this.attributes = {};
+ if (options.collection) this.collection = options.collection;
+ if (options.parse) attrs = this.parse(attrs, options) || {};
+ var defaults = _.result(this, 'defaults');
+ attrs = _.defaults(_.extend({}, defaults, attrs), defaults);
+ this.set(attrs, options);
+ this.changed = {};
+ this.initialize.apply(this, arguments);
+ };
+
+ // Attach all inheritable methods to the Model prototype.
+ _.extend(Model.prototype, Events, {
+
+ // A hash of attributes whose current and previous value differ.
+ changed: null,
+
+ // The value returned during the last failed validation.
+ validationError: null,
+
+ // The default name for the JSON `id` attribute is `"id"`. MongoDB and
+ // CouchDB users may want to set this to `"_id"`.
+ idAttribute: 'id',
+
+ // The prefix is used to create the client id which is used to identify models locally.
+ // You may want to override this if you're experiencing name clashes with model ids.
+ cidPrefix: 'c',
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // Return a copy of the model's `attributes` object.
+ toJSON: function(options) {
+ return _.clone(this.attributes);
+ },
+
+ // Proxy `Backbone.sync` by default -- but override this if you need
+ // custom syncing semantics for *this* particular model.
+ sync: function() {
+ return Backbone.sync.apply(this, arguments);
+ },
+
+ // Get the value of an attribute.
+ get: function(attr) {
+ return this.attributes[attr];
+ },
+
+ // Get the HTML-escaped value of an attribute.
+ escape: function(attr) {
+ return _.escape(this.get(attr));
+ },
+
+ // Returns `true` if the attribute contains a value that is not null
+ // or undefined.
+ has: function(attr) {
+ return this.get(attr) != null;
+ },
+
+ // Special-cased proxy to underscore's `_.matches` method.
+ matches: function(attrs) {
+ return !!_.iteratee(attrs, this)(this.attributes);
+ },
+
+ // Set a hash of model attributes on the object, firing `"change"`. This is
+ // the core primitive operation of a model, updating the data and notifying
+ // anyone who needs to know about the change in state. The heart of the beast.
+ set: function(key, val, options) {
+ if (key == null) return this;
+
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ var attrs;
+ if (typeof key === 'object') {
+ attrs = key;
+ options = val;
+ } else {
+ (attrs = {})[key] = val;
+ }
+
+ options || (options = {});
+
+ // Run validation.
+ if (!this._validate(attrs, options)) return false;
+
+ // Extract attributes and options.
+ var unset = options.unset;
+ var silent = options.silent;
+ var changes = [];
+ var changing = this._changing;
+ this._changing = true;
+
+ if (!changing) {
+ this._previousAttributes = _.clone(this.attributes);
+ this.changed = {};
+ }
+
+ var current = this.attributes;
+ var changed = this.changed;
+ var prev = this._previousAttributes;
+
+ // For each `set` attribute, update or delete the current value.
+ for (var attr in attrs) {
+ val = attrs[attr];
+ if (!_.isEqual(current[attr], val)) changes.push(attr);
+ if (!_.isEqual(prev[attr], val)) {
+ changed[attr] = val;
+ } else {
+ delete changed[attr];
+ }
+ unset ? delete current[attr] : current[attr] = val;
+ }
+
+ // Update the `id`.
+ if (this.idAttribute in attrs) this.id = this.get(this.idAttribute);
+
+ // Trigger all relevant attribute changes.
+ if (!silent) {
+ if (changes.length) this._pending = options;
+ for (var i = 0; i < changes.length; i++) {
+ this.trigger('change:' + changes[i], this, current[changes[i]], options);
+ }
+ }
+
+ // You might be wondering why there's a `while` loop here. Changes can
+ // be recursively nested within `"change"` events.
+ if (changing) return this;
+ if (!silent) {
+ while (this._pending) {
+ options = this._pending;
+ this._pending = false;
+ this.trigger('change', this, options);
+ }
+ }
+ this._pending = false;
+ this._changing = false;
+ return this;
+ },
+
+ // Remove an attribute from the model, firing `"change"`. `unset` is a noop
+ // if the attribute doesn't exist.
+ unset: function(attr, options) {
+ return this.set(attr, void 0, _.extend({}, options, {unset: true}));
+ },
+
+ // Clear all attributes on the model, firing `"change"`.
+ clear: function(options) {
+ var attrs = {};
+ for (var key in this.attributes) attrs[key] = void 0;
+ return this.set(attrs, _.extend({}, options, {unset: true}));
+ },
+
+ // Determine if the model has changed since the last `"change"` event.
+ // If you specify an attribute name, determine if that attribute has changed.
+ hasChanged: function(attr) {
+ if (attr == null) return !_.isEmpty(this.changed);
+ return _.has(this.changed, attr);
+ },
+
+ // Return an object containing all the attributes that have changed, or
+ // false if there are no changed attributes. Useful for determining what
+ // parts of a view need to be updated and/or what attributes need to be
+ // persisted to the server. Unset attributes will be set to undefined.
+ // You can also pass an attributes object to diff against the model,
+ // determining if there *would be* a change.
+ changedAttributes: function(diff) {
+ if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
+ var old = this._changing ? this._previousAttributes : this.attributes;
+ var changed = {};
+ for (var attr in diff) {
+ var val = diff[attr];
+ if (_.isEqual(old[attr], val)) continue;
+ changed[attr] = val;
+ }
+ return _.size(changed) ? changed : false;
+ },
+
+ // Get the previous value of an attribute, recorded at the time the last
+ // `"change"` event was fired.
+ previous: function(attr) {
+ if (attr == null || !this._previousAttributes) return null;
+ return this._previousAttributes[attr];
+ },
+
+ // Get all of the attributes of the model at the time of the previous
+ // `"change"` event.
+ previousAttributes: function() {
+ return _.clone(this._previousAttributes);
+ },
+
+ // Fetch the model from the server, merging the response with the model's
+ // local attributes. Any changed attributes will trigger a "change" event.
+ fetch: function(options) {
+ options = _.extend({parse: true}, options);
+ var model = this;
+ var success = options.success;
+ options.success = function(resp) {
+ var serverAttrs = options.parse ? model.parse(resp, options) : resp;
+ if (!model.set(serverAttrs, options)) return false;
+ if (success) success.call(options.context, model, resp, options);
+ model.trigger('sync', model, resp, options);
+ };
+ wrapError(this, options);
+ return this.sync('read', this, options);
+ },
+
+ // Set a hash of model attributes, and sync the model to the server.
+ // If the server returns an attributes hash that differs, the model's
+ // state will be `set` again.
+ save: function(key, val, options) {
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ var attrs;
+ if (key == null || typeof key === 'object') {
+ attrs = key;
+ options = val;
+ } else {
+ (attrs = {})[key] = val;
+ }
+
+ options = _.extend({validate: true, parse: true}, options);
+ var wait = options.wait;
+
+ // If we're not waiting and attributes exist, save acts as
+ // `set(attr).save(null, opts)` with validation. Otherwise, check if
+ // the model will be valid when the attributes, if any, are set.
+ if (attrs && !wait) {
+ if (!this.set(attrs, options)) return false;
+ } else if (!this._validate(attrs, options)) {
+ return false;
+ }
+
+ // After a successful server-side save, the client is (optionally)
+ // updated with the server-side state.
+ var model = this;
+ var success = options.success;
+ var attributes = this.attributes;
+ options.success = function(resp) {
+ // Ensure attributes are restored during synchronous saves.
+ model.attributes = attributes;
+ var serverAttrs = options.parse ? model.parse(resp, options) : resp;
+ if (wait) serverAttrs = _.extend({}, attrs, serverAttrs);
+ if (serverAttrs && !model.set(serverAttrs, options)) return false;
+ if (success) success.call(options.context, model, resp, options);
+ model.trigger('sync', model, resp, options);
+ };
+ wrapError(this, options);
+
+ // Set temporary attributes if `{wait: true}` to properly find new ids.
+ if (attrs && wait) this.attributes = _.extend({}, attributes, attrs);
+
+ var method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
+ if (method === 'patch' && !options.attrs) options.attrs = attrs;
+ var xhr = this.sync(method, this, options);
+
+ // Restore attributes.
+ this.attributes = attributes;
+
+ return xhr;
+ },
+
+ // Destroy this model on the server if it was already persisted.
+ // Optimistically removes the model from its collection, if it has one.
+ // If `wait: true` is passed, waits for the server to respond before removal.
+ destroy: function(options) {
+ options = options ? _.clone(options) : {};
+ var model = this;
+ var success = options.success;
+ var wait = options.wait;
+
+ var destroy = function() {
+ model.stopListening();
+ model.trigger('destroy', model, model.collection, options);
+ };
+
+ options.success = function(resp) {
+ if (wait) destroy();
+ if (success) success.call(options.context, model, resp, options);
+ if (!model.isNew()) model.trigger('sync', model, resp, options);
+ };
+
+ var xhr = false;
+ if (this.isNew()) {
+ _.defer(options.success);
+ } else {
+ wrapError(this, options);
+ xhr = this.sync('delete', this, options);
+ }
+ if (!wait) destroy();
+ return xhr;
+ },
+
+ // Default URL for the model's representation on the server -- if you're
+ // using Backbone's restful methods, override this to change the endpoint
+ // that will be called.
+ url: function() {
+ var base =
+ _.result(this, 'urlRoot') ||
+ _.result(this.collection, 'url') ||
+ urlError();
+ if (this.isNew()) return base;
+ var id = this.get(this.idAttribute);
+ return base.replace(/[^\/]$/, '$&/') + encodeURIComponent(id);
+ },
+
+ // **parse** converts a response into the hash of attributes to be `set` on
+ // the model. The default implementation is just to pass the response along.
+ parse: function(resp, options) {
+ return resp;
+ },
+
+ // Create a new model with identical attributes to this one.
+ clone: function() {
+ return new this.constructor(this.attributes);
+ },
+
+ // A model is new if it has never been saved to the server, and lacks an id.
+ isNew: function() {
+ return !this.has(this.idAttribute);
+ },
+
+ // Check if the model is currently in a valid state.
+ isValid: function(options) {
+ return this._validate({}, _.extend({}, options, {validate: true}));
+ },
+
+ // Run validation against the next complete set of model attributes,
+ // returning `true` if all is well. Otherwise, fire an `"invalid"` event.
+ _validate: function(attrs, options) {
+ if (!options.validate || !this.validate) return true;
+ attrs = _.extend({}, this.attributes, attrs);
+ var error = this.validationError = this.validate(attrs, options) || null;
+ if (!error) return true;
+ this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
+ return false;
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Model, mapped to the
+ // number of arguments they take.
+ var modelMethods = {keys: 1, values: 1, pairs: 1, invert: 1, pick: 0,
+ omit: 0, chain: 1, isEmpty: 1};
+
+ // Mix in each Underscore method as a proxy to `Model#attributes`.
+ addUnderscoreMethods(Model, modelMethods, 'attributes');
+
+ // Backbone.Collection
+ // -------------------
+
+ // If models tend to represent a single row of data, a Backbone Collection is
+ // more analogous to a table full of data ... or a small slice or page of that
+ // table, or a collection of rows that belong together for a particular reason
+ // -- all of the messages in this particular folder, all of the documents
+ // belonging to this particular author, and so on. Collections maintain
+ // indexes of their models, both in order, and for lookup by `id`.
+
+ // Create a new **Collection**, perhaps to contain a specific type of `model`.
+ // If a `comparator` is specified, the Collection will maintain
+ // its models in sort order, as they're added and removed.
+ var Collection = Backbone.Collection = function(models, options) {
+ options || (options = {});
+ if (options.model) this.model = options.model;
+ if (options.comparator !== void 0) this.comparator = options.comparator;
+ this._reset();
+ this.initialize.apply(this, arguments);
+ if (models) this.reset(models, _.extend({silent: true}, options));
+ };
+
+ // Default options for `Collection#set`.
+ var setOptions = {add: true, remove: true, merge: true};
+ var addOptions = {add: true, remove: false};
+
+ // Splices `insert` into `array` at index `at`.
+ var splice = function(array, insert, at) {
+ at = Math.min(Math.max(at, 0), array.length);
+ var tail = Array(array.length - at);
+ var length = insert.length;
+ var i;
+ for (i = 0; i < tail.length; i++) tail[i] = array[i + at];
+ for (i = 0; i < length; i++) array[i + at] = insert[i];
+ for (i = 0; i < tail.length; i++) array[i + length + at] = tail[i];
+ };
+
+ // Define the Collection's inheritable methods.
+ _.extend(Collection.prototype, Events, {
+
+ // The default model for a collection is just a **Backbone.Model**.
+ // This should be overridden in most cases.
+ model: Model,
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // The JSON representation of a Collection is an array of the
+ // models' attributes.
+ toJSON: function(options) {
+ return this.map(function(model) { return model.toJSON(options); });
+ },
+
+ // Proxy `Backbone.sync` by default.
+ sync: function() {
+ return Backbone.sync.apply(this, arguments);
+ },
+
+ // Add a model, or list of models to the set. `models` may be Backbone
+ // Models or raw JavaScript objects to be converted to Models, or any
+ // combination of the two.
+ add: function(models, options) {
+ return this.set(models, _.extend({merge: false}, options, addOptions));
+ },
+
+ // Remove a model, or a list of models from the set.
+ remove: function(models, options) {
+ options = _.extend({}, options);
+ var singular = !_.isArray(models);
+ models = singular ? [models] : models.slice();
+ var removed = this._removeModels(models, options);
+ if (!options.silent && removed.length) {
+ options.changes = {added: [], merged: [], removed: removed};
+ this.trigger('update', this, options);
+ }
+ return singular ? removed[0] : removed;
+ },
+
+ // Update a collection by `set`-ing a new list of models, adding new ones,
+ // removing models that are no longer present, and merging models that
+ // already exist in the collection, as necessary. Similar to **Model#set**,
+ // the core operation for updating the data contained by the collection.
+ set: function(models, options) {
+ if (models == null) return;
+
+ options = _.extend({}, setOptions, options);
+ if (options.parse && !this._isModel(models)) {
+ models = this.parse(models, options) || [];
+ }
+
+ var singular = !_.isArray(models);
+ models = singular ? [models] : models.slice();
+
+ var at = options.at;
+ if (at != null) at = +at;
+ if (at > this.length) at = this.length;
+ if (at < 0) at += this.length + 1;
+
+ var set = [];
+ var toAdd = [];
+ var toMerge = [];
+ var toRemove = [];
+ var modelMap = {};
+
+ var add = options.add;
+ var merge = options.merge;
+ var remove = options.remove;
+
+ var sort = false;
+ var sortable = this.comparator && at == null && options.sort !== false;
+ var sortAttr = _.isString(this.comparator) ? this.comparator : null;
+
+ // Turn bare objects into model references, and prevent invalid models
+ // from being added.
+ var model, i;
+ for (i = 0; i < models.length; i++) {
+ model = models[i];
+
+ // If a duplicate is found, prevent it from being added and
+ // optionally merge it into the existing model.
+ var existing = this.get(model);
+ if (existing) {
+ if (merge && model !== existing) {
+ var attrs = this._isModel(model) ? model.attributes : model;
+ if (options.parse) attrs = existing.parse(attrs, options);
+ existing.set(attrs, options);
+ toMerge.push(existing);
+ if (sortable && !sort) sort = existing.hasChanged(sortAttr);
+ }
+ if (!modelMap[existing.cid]) {
+ modelMap[existing.cid] = true;
+ set.push(existing);
+ }
+ models[i] = existing;
+
+ // If this is a new, valid model, push it to the `toAdd` list.
+ } else if (add) {
+ model = models[i] = this._prepareModel(model, options);
+ if (model) {
+ toAdd.push(model);
+ this._addReference(model, options);
+ modelMap[model.cid] = true;
+ set.push(model);
+ }
+ }
+ }
+
+ // Remove stale models.
+ if (remove) {
+ for (i = 0; i < this.length; i++) {
+ model = this.models[i];
+ if (!modelMap[model.cid]) toRemove.push(model);
+ }
+ if (toRemove.length) this._removeModels(toRemove, options);
+ }
+
+ // See if sorting is needed, update `length` and splice in new models.
+ var orderChanged = false;
+ var replace = !sortable && add && remove;
+ if (set.length && replace) {
+ orderChanged = this.length !== set.length || _.some(this.models, function(m, index) {
+ return m !== set[index];
+ });
+ this.models.length = 0;
+ splice(this.models, set, 0);
+ this.length = this.models.length;
+ } else if (toAdd.length) {
+ if (sortable) sort = true;
+ splice(this.models, toAdd, at == null ? this.length : at);
+ this.length = this.models.length;
+ }
+
+ // Silently sort the collection if appropriate.
+ if (sort) this.sort({silent: true});
+
+ // Unless silenced, it's time to fire all appropriate add/sort/update events.
+ if (!options.silent) {
+ for (i = 0; i < toAdd.length; i++) {
+ if (at != null) options.index = at + i;
+ model = toAdd[i];
+ model.trigger('add', model, this, options);
+ }
+ if (sort || orderChanged) this.trigger('sort', this, options);
+ if (toAdd.length || toRemove.length || toMerge.length) {
+ options.changes = {
+ added: toAdd,
+ removed: toRemove,
+ merged: toMerge
+ };
+ this.trigger('update', this, options);
+ }
+ }
+
+ // Return the added (or merged) model (or models).
+ return singular ? models[0] : models;
+ },
+
+ // When you have more items than you want to add or remove individually,
+ // you can reset the entire set with a new list of models, without firing
+ // any granular `add` or `remove` events. Fires `reset` when finished.
+ // Useful for bulk operations and optimizations.
+ reset: function(models, options) {
+ options = options ? _.clone(options) : {};
+ for (var i = 0; i < this.models.length; i++) {
+ this._removeReference(this.models[i], options);
+ }
+ options.previousModels = this.models;
+ this._reset();
+ models = this.add(models, _.extend({silent: true}, options));
+ if (!options.silent) this.trigger('reset', this, options);
+ return models;
+ },
+
+ // Add a model to the end of the collection.
+ push: function(model, options) {
+ return this.add(model, _.extend({at: this.length}, options));
+ },
+
+ // Remove a model from the end of the collection.
+ pop: function(options) {
+ var model = this.at(this.length - 1);
+ return this.remove(model, options);
+ },
+
+ // Add a model to the beginning of the collection.
+ unshift: function(model, options) {
+ return this.add(model, _.extend({at: 0}, options));
+ },
+
+ // Remove a model from the beginning of the collection.
+ shift: function(options) {
+ var model = this.at(0);
+ return this.remove(model, options);
+ },
+
+ // Slice out a sub-array of models from the collection.
+ slice: function() {
+ return slice.apply(this.models, arguments);
+ },
+
+ // Get a model from the set by id, cid, model object with id or cid
+ // properties, or an attributes object that is transformed through modelId.
+ get: function(obj) {
+ if (obj == null) return void 0;
+ return this._byId[obj] ||
+ this._byId[this.modelId(obj.attributes || obj)] ||
+ obj.cid && this._byId[obj.cid];
+ },
+
+ // Returns `true` if the model is in the collection.
+ has: function(obj) {
+ return this.get(obj) != null;
+ },
+
+ // Get the model at the given index.
+ at: function(index) {
+ if (index < 0) index += this.length;
+ return this.models[index];
+ },
+
+ // Return models with matching attributes. Useful for simple cases of
+ // `filter`.
+ where: function(attrs, first) {
+ return this[first ? 'find' : 'filter'](attrs);
+ },
+
+ // Return the first model with matching attributes. Useful for simple cases
+ // of `find`.
+ findWhere: function(attrs) {
+ return this.where(attrs, true);
+ },
+
+ // Force the collection to re-sort itself. You don't need to call this under
+ // normal circumstances, as the set will maintain sort order as each item
+ // is added.
+ sort: function(options) {
+ var comparator = this.comparator;
+ if (!comparator) throw new Error('Cannot sort a set without a comparator');
+ options || (options = {});
+
+ var length = comparator.length;
+ if (_.isFunction(comparator)) comparator = _.bind(comparator, this);
+
+ // Run sort based on type of `comparator`.
+ if (length === 1 || _.isString(comparator)) {
+ this.models = this.sortBy(comparator);
+ } else {
+ this.models.sort(comparator);
+ }
+ if (!options.silent) this.trigger('sort', this, options);
+ return this;
+ },
+
+ // Pluck an attribute from each model in the collection.
+ pluck: function(attr) {
+ return this.map(attr + '');
+ },
+
+ // Fetch the default set of models for this collection, resetting the
+ // collection when they arrive. If `reset: true` is passed, the response
+ // data will be passed through the `reset` method instead of `set`.
+ fetch: function(options) {
+ options = _.extend({parse: true}, options);
+ var success = options.success;
+ var collection = this;
+ options.success = function(resp) {
+ var method = options.reset ? 'reset' : 'set';
+ collection[method](resp, options);
+ if (success) success.call(options.context, collection, resp, options);
+ collection.trigger('sync', collection, resp, options);
+ };
+ wrapError(this, options);
+ return this.sync('read', this, options);
+ },
+
+ // Create a new instance of a model in this collection. Add the model to the
+ // collection immediately, unless `wait: true` is passed, in which case we
+ // wait for the server to agree.
+ create: function(model, options) {
+ options = options ? _.clone(options) : {};
+ var wait = options.wait;
+ model = this._prepareModel(model, options);
+ if (!model) return false;
+ if (!wait) this.add(model, options);
+ var collection = this;
+ var success = options.success;
+ options.success = function(m, resp, callbackOpts) {
+ if (wait) collection.add(m, callbackOpts);
+ if (success) success.call(callbackOpts.context, m, resp, callbackOpts);
+ };
+ model.save(null, options);
+ return model;
+ },
+
+ // **parse** converts a response into a list of models to be added to the
+ // collection. The default implementation is just to pass it through.
+ parse: function(resp, options) {
+ return resp;
+ },
+
+ // Create a new collection with an identical list of models as this one.
+ clone: function() {
+ return new this.constructor(this.models, {
+ model: this.model,
+ comparator: this.comparator
+ });
+ },
+
+ // Define how to uniquely identify models in the collection.
+ modelId: function(attrs) {
+ return attrs[this.model.prototype.idAttribute || 'id'];
+ },
+
+ // Private method to reset all internal state. Called when the collection
+ // is first initialized or reset.
+ _reset: function() {
+ this.length = 0;
+ this.models = [];
+ this._byId = {};
+ },
+
+ // Prepare a hash of attributes (or other model) to be added to this
+ // collection.
+ _prepareModel: function(attrs, options) {
+ if (this._isModel(attrs)) {
+ if (!attrs.collection) attrs.collection = this;
+ return attrs;
+ }
+ options = options ? _.clone(options) : {};
+ options.collection = this;
+ var model = new this.model(attrs, options);
+ if (!model.validationError) return model;
+ this.trigger('invalid', this, model.validationError, options);
+ return false;
+ },
+
+ // Internal method called by both remove and set.
+ _removeModels: function(models, options) {
+ var removed = [];
+ for (var i = 0; i < models.length; i++) {
+ var model = this.get(models[i]);
+ if (!model) continue;
+
+ var index = this.indexOf(model);
+ this.models.splice(index, 1);
+ this.length--;
+
+ // Remove references before triggering 'remove' event to prevent an
+ // infinite loop. #3693
+ delete this._byId[model.cid];
+ var id = this.modelId(model.attributes);
+ if (id != null) delete this._byId[id];
+
+ if (!options.silent) {
+ options.index = index;
+ model.trigger('remove', model, this, options);
+ }
+
+ removed.push(model);
+ this._removeReference(model, options);
+ }
+ return removed;
+ },
+
+ // Method for checking whether an object should be considered a model for
+ // the purposes of adding to the collection.
+ _isModel: function(model) {
+ return model instanceof Model;
+ },
+
+ // Internal method to create a model's ties to a collection.
+ _addReference: function(model, options) {
+ this._byId[model.cid] = model;
+ var id = this.modelId(model.attributes);
+ if (id != null) this._byId[id] = model;
+ model.on('all', this._onModelEvent, this);
+ },
+
+ // Internal method to sever a model's ties to a collection.
+ _removeReference: function(model, options) {
+ delete this._byId[model.cid];
+ var id = this.modelId(model.attributes);
+ if (id != null) delete this._byId[id];
+ if (this === model.collection) delete model.collection;
+ model.off('all', this._onModelEvent, this);
+ },
+
+ // Internal method called every time a model in the set fires an event.
+ // Sets need to update their indexes when models change ids. All other
+ // events simply proxy through. "add" and "remove" events that originate
+ // in other collections are ignored.
+ _onModelEvent: function(event, model, collection, options) {
+ if (model) {
+ if ((event === 'add' || event === 'remove') && collection !== this) return;
+ if (event === 'destroy') this.remove(model, options);
+ if (event === 'change') {
+ var prevId = this.modelId(model.previousAttributes());
+ var id = this.modelId(model.attributes);
+ if (prevId !== id) {
+ if (prevId != null) delete this._byId[prevId];
+ if (id != null) this._byId[id] = model;
+ }
+ }
+ }
+ this.trigger.apply(this, arguments);
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Collection.
+ // 90% of the core usefulness of Backbone Collections is actually implemented
+ // right here:
+ var collectionMethods = {forEach: 3, each: 3, map: 3, collect: 3, reduce: 0,
+ foldl: 0, inject: 0, reduceRight: 0, foldr: 0, find: 3, detect: 3, filter: 3,
+ select: 3, reject: 3, every: 3, all: 3, some: 3, any: 3, include: 3, includes: 3,
+ contains: 3, invoke: 0, max: 3, min: 3, toArray: 1, size: 1, first: 3,
+ head: 3, take: 3, initial: 3, rest: 3, tail: 3, drop: 3, last: 3,
+ without: 0, difference: 0, indexOf: 3, shuffle: 1, lastIndexOf: 3,
+ isEmpty: 1, chain: 1, sample: 3, partition: 3, groupBy: 3, countBy: 3,
+ sortBy: 3, indexBy: 3, findIndex: 3, findLastIndex: 3};
+
+ // Mix in each Underscore method as a proxy to `Collection#models`.
+ addUnderscoreMethods(Collection, collectionMethods, 'models');
+
+ // Backbone.View
+ // -------------
+
+ // Backbone Views are almost more convention than they are actual code. A View
+ // is simply a JavaScript object that represents a logical chunk of UI in the
+ // DOM. This might be a single item, an entire list, a sidebar or panel, or
+ // even the surrounding frame which wraps your whole app. Defining a chunk of
+ // UI as a **View** allows you to define your DOM events declaratively, without
+ // having to worry about render order ... and makes it easy for the view to
+ // react to specific changes in the state of your models.
+
+ // Creating a Backbone.View creates its initial element outside of the DOM,
+ // if an existing element is not provided...
+ var View = Backbone.View = function(options) {
+ this.cid = _.uniqueId('view');
+ _.extend(this, _.pick(options, viewOptions));
+ this._ensureElement();
+ this.initialize.apply(this, arguments);
+ };
+
+ // Cached regex to split keys for `delegate`.
+ var delegateEventSplitter = /^(\S+)\s*(.*)$/;
+
+ // List of view options to be set as properties.
+ var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];
+
+ // Set up all inheritable **Backbone.View** properties and methods.
+ _.extend(View.prototype, Events, {
+
+ // The default `tagName` of a View's element is `"div"`.
+ tagName: 'div',
+
+ // jQuery delegate for element lookup, scoped to DOM elements within the
+ // current view. This should be preferred to global lookups where possible.
+ $: function(selector) {
+ return this.$el.find(selector);
+ },
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // **render** is the core function that your view should override, in order
+ // to populate its element (`this.el`), with the appropriate HTML. The
+ // convention is for **render** to always return `this`.
+ render: function() {
+ return this;
+ },
+
+ // Remove this view by taking the element out of the DOM, and removing any
+ // applicable Backbone.Events listeners.
+ remove: function() {
+ this._removeElement();
+ this.stopListening();
+ return this;
+ },
+
+ // Remove this view's element from the document and all event listeners
+ // attached to it. Exposed for subclasses using an alternative DOM
+ // manipulation API.
+ _removeElement: function() {
+ this.$el.remove();
+ },
+
+ // Change the view's element (`this.el` property) and re-delegate the
+ // view's events on the new element.
+ setElement: function(element) {
+ this.undelegateEvents();
+ this._setElement(element);
+ this.delegateEvents();
+ return this;
+ },
+
+ // Creates the `this.el` and `this.$el` references for this view using the
+ // given `el`. `el` can be a CSS selector or an HTML string, a jQuery
+ // context or an element. Subclasses can override this to utilize an
+ // alternative DOM manipulation API and are only required to set the
+ // `this.el` property.
+ _setElement: function(el) {
+ this.$el = el instanceof Backbone.$ ? el : Backbone.$(el);
+ this.el = this.$el[0];
+ },
+
+ // Set callbacks, where `this.events` is a hash of
+ //
+ // *{"event selector": "callback"}*
+ //
+ // {
+ // 'mousedown .title': 'edit',
+ // 'click .button': 'save',
+ // 'click .open': function(e) { ... }
+ // }
+ //
+ // pairs. Callbacks will be bound to the view, with `this` set properly.
+ // Uses event delegation for efficiency.
+ // Omitting the selector binds the event to `this.el`.
+ delegateEvents: function(events) {
+ events || (events = _.result(this, 'events'));
+ if (!events) return this;
+ this.undelegateEvents();
+ for (var key in events) {
+ var method = events[key];
+ if (!_.isFunction(method)) method = this[method];
+ if (!method) continue;
+ var match = key.match(delegateEventSplitter);
+ this.delegate(match[1], match[2], _.bind(method, this));
+ }
+ return this;
+ },
+
+ // Add a single event listener to the view's element (or a child element
+ // using `selector`). This only works for delegate-able events: not `focus`,
+ // `blur`, and not `change`, `submit`, and `reset` in Internet Explorer.
+ delegate: function(eventName, selector, listener) {
+ this.$el.on(eventName + '.delegateEvents' + this.cid, selector, listener);
+ return this;
+ },
+
+ // Clears all callbacks previously bound to the view by `delegateEvents`.
+ // You usually don't need to use this, but may wish to if you have multiple
+ // Backbone views attached to the same DOM element.
+ undelegateEvents: function() {
+ if (this.$el) this.$el.off('.delegateEvents' + this.cid);
+ return this;
+ },
+
+ // A finer-grained `undelegateEvents` for removing a single delegated event.
+ // `selector` and `listener` are both optional.
+ undelegate: function(eventName, selector, listener) {
+ this.$el.off(eventName + '.delegateEvents' + this.cid, selector, listener);
+ return this;
+ },
+
+ // Produces a DOM element to be assigned to your view. Exposed for
+ // subclasses using an alternative DOM manipulation API.
+ _createElement: function(tagName) {
+ return document.createElement(tagName);
+ },
+
+ // Ensure that the View has a DOM element to render into.
+ // If `this.el` is a string, pass it through `$()`, take the first
+ // matching element, and re-assign it to `el`. Otherwise, create
+ // an element from the `id`, `className` and `tagName` properties.
+ _ensureElement: function() {
+ if (!this.el) {
+ var attrs = _.extend({}, _.result(this, 'attributes'));
+ if (this.id) attrs.id = _.result(this, 'id');
+ if (this.className) attrs['class'] = _.result(this, 'className');
+ this.setElement(this._createElement(_.result(this, 'tagName')));
+ this._setAttributes(attrs);
+ } else {
+ this.setElement(_.result(this, 'el'));
+ }
+ },
+
+ // Set attributes from a hash on this view's element. Exposed for
+ // subclasses using an alternative DOM manipulation API.
+ _setAttributes: function(attributes) {
+ this.$el.attr(attributes);
+ }
+
+ });
+
+ // Backbone.sync
+ // -------------
+
+ // Override this function to change the manner in which Backbone persists
+ // models to the server. You will be passed the type of request, and the
+ // model in question. By default, makes a RESTful Ajax request
+ // to the model's `url()`. Some possible customizations could be:
+ //
+ // * Use `setTimeout` to batch rapid-fire updates into a single request.
+ // * Send up the models as XML instead of JSON.
+ // * Persist models via WebSockets instead of Ajax.
+ //
+ // Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
+ // as `POST`, with a `_method` parameter containing the true HTTP method,
+ // as well as all requests with the body as `application/x-www-form-urlencoded`
+ // instead of `application/json` with the model in a param named `model`.
+ // Useful when interfacing with server-side languages like **PHP** that make
+ // it difficult to read the body of `PUT` requests.
+ Backbone.sync = function(method, model, options) {
+ var type = methodMap[method];
+
+ // Default options, unless specified.
+ _.defaults(options || (options = {}), {
+ emulateHTTP: Backbone.emulateHTTP,
+ emulateJSON: Backbone.emulateJSON
+ });
+
+ // Default JSON-request options.
+ var params = {type: type, dataType: 'json'};
+
+ // Ensure that we have a URL.
+ if (!options.url) {
+ params.url = _.result(model, 'url') || urlError();
+ }
+
+ // Ensure that we have the appropriate request data.
+ if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
+ params.contentType = 'application/json';
+ params.data = JSON.stringify(options.attrs || model.toJSON(options));
+ }
+
+ // For older servers, emulate JSON by encoding the request into an HTML-form.
+ if (options.emulateJSON) {
+ params.contentType = 'application/x-www-form-urlencoded';
+ params.data = params.data ? {model: params.data} : {};
+ }
+
+ // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
+ // And an `X-HTTP-Method-Override` header.
+ if (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
+ params.type = 'POST';
+ if (options.emulateJSON) params.data._method = type;
+ var beforeSend = options.beforeSend;
+ options.beforeSend = function(xhr) {
+ xhr.setRequestHeader('X-HTTP-Method-Override', type);
+ if (beforeSend) return beforeSend.apply(this, arguments);
+ };
+ }
+
+ // Don't process data on a non-GET request.
+ if (params.type !== 'GET' && !options.emulateJSON) {
+ params.processData = false;
+ }
+
+ // Pass along `textStatus` and `errorThrown` from jQuery.
+ var error = options.error;
+ options.error = function(xhr, textStatus, errorThrown) {
+ options.textStatus = textStatus;
+ options.errorThrown = errorThrown;
+ if (error) error.call(options.context, xhr, textStatus, errorThrown);
+ };
+
+ // Make the request, allowing the user to override any Ajax options.
+ var xhr = options.xhr = Backbone.ajax(_.extend(params, options));
+ model.trigger('request', model, xhr, options);
+ return xhr;
+ };
+
+ // Map from CRUD to HTTP for our default `Backbone.sync` implementation.
+ var methodMap = {
+ 'create': 'POST',
+ 'update': 'PUT',
+ 'patch': 'PATCH',
+ 'delete': 'DELETE',
+ 'read': 'GET'
+ };
+
+ // Set the default implementation of `Backbone.ajax` to proxy through to `$`.
+ // Override this if you'd like to use a different library.
+ Backbone.ajax = function() {
+ return Backbone.$.ajax.apply(Backbone.$, arguments);
+ };
+
+ // Backbone.Router
+ // ---------------
+
+ // Routers map faux-URLs to actions, and fire events when routes are
+ // matched. Creating a new one sets its `routes` hash, if not set statically.
+ var Router = Backbone.Router = function(options) {
+ options || (options = {});
+ if (options.routes) this.routes = options.routes;
+ this._bindRoutes();
+ this.initialize.apply(this, arguments);
+ };
+
+ // Cached regular expressions for matching named param parts and splatted
+ // parts of route strings.
+ var optionalParam = /\((.*?)\)/g;
+ var namedParam = /(\(\?)?:\w+/g;
+ var splatParam = /\*\w+/g;
+ var escapeRegExp = /[\-{}\[\]+?.,\\\^$|#\s]/g;
+
+ // Set up all inheritable **Backbone.Router** properties and methods.
+ _.extend(Router.prototype, Events, {
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // Manually bind a single named route to a callback. For example:
+ //
+ // this.route('search/:query/p:num', 'search', function(query, num) {
+ // ...
+ // });
+ //
+ route: function(route, name, callback) {
+ if (!_.isRegExp(route)) route = this._routeToRegExp(route);
+ if (_.isFunction(name)) {
+ callback = name;
+ name = '';
+ }
+ if (!callback) callback = this[name];
+ var router = this;
+ Backbone.history.route(route, function(fragment) {
+ var args = router._extractParameters(route, fragment);
+ if (router.execute(callback, args, name) !== false) {
+ router.trigger.apply(router, ['route:' + name].concat(args));
+ router.trigger('route', name, args);
+ Backbone.history.trigger('route', router, name, args);
+ }
+ });
+ return this;
+ },
+
+ // Execute a route handler with the provided parameters. This is an
+ // excellent place to do pre-route setup or post-route cleanup.
+ execute: function(callback, args, name) {
+ if (callback) callback.apply(this, args);
+ },
+
+ // Simple proxy to `Backbone.history` to save a fragment into the history.
+ navigate: function(fragment, options) {
+ Backbone.history.navigate(fragment, options);
+ return this;
+ },
+
+ // Bind all defined routes to `Backbone.history`. We have to reverse the
+ // order of the routes here to support behavior where the most general
+ // routes can be defined at the bottom of the route map.
+ _bindRoutes: function() {
+ if (!this.routes) return;
+ this.routes = _.result(this, 'routes');
+ var route, routes = _.keys(this.routes);
+ while ((route = routes.pop()) != null) {
+ this.route(route, this.routes[route]);
+ }
+ },
+
+ // Convert a route string into a regular expression, suitable for matching
+ // against the current location hash.
+ _routeToRegExp: function(route) {
+ route = route.replace(escapeRegExp, '\\$&')
+ .replace(optionalParam, '(?:$1)?')
+ .replace(namedParam, function(match, optional) {
+ return optional ? match : '([^/?]+)';
+ })
+ .replace(splatParam, '([^?]*?)');
+ return new RegExp('^' + route + '(?:\\?([\\s\\S]*))?$');
+ },
+
+ // Given a route, and a URL fragment that it matches, return the array of
+ // extracted decoded parameters. Empty or unmatched parameters will be
+ // treated as `null` to normalize cross-browser behavior.
+ _extractParameters: function(route, fragment) {
+ var params = route.exec(fragment).slice(1);
+ return _.map(params, function(param, i) {
+ // Don't decode the search params.
+ if (i === params.length - 1) return param || null;
+ return param ? decodeURIComponent(param) : null;
+ });
+ }
+
+ });
+
+ // Backbone.History
+ // ----------------
+
+ // Handles cross-browser history management, based on either
+ // [pushState](http://diveintohtml5.info/history.html) and real URLs, or
+ // [onhashchange](https://developer.mozilla.org/en-US/docs/DOM/window.onhashchange)
+ // and URL fragments. If the browser supports neither (old IE, natch),
+ // falls back to polling.
+ var History = Backbone.History = function() {
+ this.handlers = [];
+ this.checkUrl = _.bind(this.checkUrl, this);
+
+ // Ensure that `History` can be used outside of the browser.
+ if (typeof window !== 'undefined') {
+ this.location = window.location;
+ this.history = window.history;
+ }
+ };
+
+ // Cached regex for stripping a leading hash/slash and trailing space.
+ var routeStripper = /^[#\/]|\s+$/g;
+
+ // Cached regex for stripping leading and trailing slashes.
+ var rootStripper = /^\/+|\/+$/g;
+
+ // Cached regex for stripping urls of hash.
+ var pathStripper = /#.*$/;
+
+ // Has the history handling already been started?
+ History.started = false;
+
+ // Set up all inheritable **Backbone.History** properties and methods.
+ _.extend(History.prototype, Events, {
+
+ // The default interval to poll for hash changes, if necessary, is
+ // twenty times a second.
+ interval: 50,
+
+ // Are we at the app root?
+ atRoot: function() {
+ var path = this.location.pathname.replace(/[^\/]$/, '$&/');
+ return path === this.root && !this.getSearch();
+ },
+
+ // Does the pathname match the root?
+ matchRoot: function() {
+ var path = this.decodeFragment(this.location.pathname);
+ var rootPath = path.slice(0, this.root.length - 1) + '/';
+ return rootPath === this.root;
+ },
+
+ // Unicode characters in `location.pathname` are percent encoded so they're
+ // decoded for comparison. `%25` should not be decoded since it may be part
+ // of an encoded parameter.
+ decodeFragment: function(fragment) {
+ return decodeURI(fragment.replace(/%25/g, '%2525'));
+ },
+
+ // In IE6, the hash fragment and search params are incorrect if the
+ // fragment contains `?`.
+ getSearch: function() {
+ var match = this.location.href.replace(/#.*/, '').match(/\?.+/);
+ return match ? match[0] : '';
+ },
+
+ // Gets the true hash value. Cannot use location.hash directly due to bug
+ // in Firefox where location.hash will always be decoded.
+ getHash: function(window) {
+ var match = (window || this).location.href.match(/#(.*)$/);
+ return match ? match[1] : '';
+ },
+
+ // Get the pathname and search params, without the root.
+ getPath: function() {
+ var path = this.decodeFragment(
+ this.location.pathname + this.getSearch()
+ ).slice(this.root.length - 1);
+ return path.charAt(0) === '/' ? path.slice(1) : path;
+ },
+
+ // Get the cross-browser normalized URL fragment from the path or hash.
+ getFragment: function(fragment) {
+ if (fragment == null) {
+ if (this._usePushState || !this._wantsHashChange) {
+ fragment = this.getPath();
+ } else {
+ fragment = this.getHash();
+ }
+ }
+ return fragment.replace(routeStripper, '');
+ },
+
+ // Start the hash change handling, returning `true` if the current URL matches
+ // an existing route, and `false` otherwise.
+ start: function(options) {
+ if (History.started) throw new Error('Backbone.history has already been started');
+ History.started = true;
+
+ // Figure out the initial configuration. Do we need an iframe?
+ // Is pushState desired ... is it available?
+ this.options = _.extend({root: '/'}, this.options, options);
+ this.root = this.options.root;
+ this._wantsHashChange = this.options.hashChange !== false;
+ this._hasHashChange = 'onhashchange' in window && (document.documentMode === void 0 || document.documentMode > 7);
+ this._useHashChange = this._wantsHashChange && this._hasHashChange;
+ this._wantsPushState = !!this.options.pushState;
+ this._hasPushState = !!(this.history && this.history.pushState);
+ this._usePushState = this._wantsPushState && this._hasPushState;
+ this.fragment = this.getFragment();
+
+ // Normalize root to always include a leading and trailing slash.
+ this.root = ('/' + this.root + '/').replace(rootStripper, '/');
+
+ // Transition from hashChange to pushState or vice versa if both are
+ // requested.
+ if (this._wantsHashChange && this._wantsPushState) {
+
+ // If we've started off with a route from a `pushState`-enabled
+ // browser, but we're currently in a browser that doesn't support it...
+ if (!this._hasPushState && !this.atRoot()) {
+ var rootPath = this.root.slice(0, -1) || '/';
+ this.location.replace(rootPath + '#' + this.getPath());
+ // Return immediately as browser will do redirect to new url
+ return true;
+
+ // Or if we've started out with a hash-based route, but we're currently
+ // in a browser where it could be `pushState`-based instead...
+ } else if (this._hasPushState && this.atRoot()) {
+ this.navigate(this.getHash(), {replace: true});
+ }
+
+ }
+
+ // Proxy an iframe to handle location events if the browser doesn't
+ // support the `hashchange` event, HTML5 history, or the user wants
+ // `hashChange` but not `pushState`.
+ if (!this._hasHashChange && this._wantsHashChange && !this._usePushState) {
+ this.iframe = document.createElement('iframe');
+ this.iframe.src = 'javascript:0';
+ this.iframe.style.display = 'none';
+ this.iframe.tabIndex = -1;
+ var body = document.body;
+ // Using `appendChild` will throw on IE < 9 if the document is not ready.
+ var iWindow = body.insertBefore(this.iframe, body.firstChild).contentWindow;
+ iWindow.document.open();
+ iWindow.document.close();
+ iWindow.location.hash = '#' + this.fragment;
+ }
+
+ // Add a cross-platform `addEventListener` shim for older browsers.
+ var addEventListener = window.addEventListener || function(eventName, listener) {
+ return attachEvent('on' + eventName, listener);
+ };
+
+ // Depending on whether we're using pushState or hashes, and whether
+ // 'onhashchange' is supported, determine how we check the URL state.
+ if (this._usePushState) {
+ addEventListener('popstate', this.checkUrl, false);
+ } else if (this._useHashChange && !this.iframe) {
+ addEventListener('hashchange', this.checkUrl, false);
+ } else if (this._wantsHashChange) {
+ this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
+ }
+
+ if (!this.options.silent) return this.loadUrl();
+ },
+
+ // Disable Backbone.history, perhaps temporarily. Not useful in a real app,
+ // but possibly useful for unit testing Routers.
+ stop: function() {
+ // Add a cross-platform `removeEventListener` shim for older browsers.
+ var removeEventListener = window.removeEventListener || function(eventName, listener) {
+ return detachEvent('on' + eventName, listener);
+ };
+
+ // Remove window listeners.
+ if (this._usePushState) {
+ removeEventListener('popstate', this.checkUrl, false);
+ } else if (this._useHashChange && !this.iframe) {
+ removeEventListener('hashchange', this.checkUrl, false);
+ }
+
+ // Clean up the iframe if necessary.
+ if (this.iframe) {
+ document.body.removeChild(this.iframe);
+ this.iframe = null;
+ }
+
+ // Some environments will throw when clearing an undefined interval.
+ if (this._checkUrlInterval) clearInterval(this._checkUrlInterval);
+ History.started = false;
+ },
+
+ // Add a route to be tested when the fragment changes. Routes added later
+ // may override previous routes.
+ route: function(route, callback) {
+ this.handlers.unshift({route: route, callback: callback});
+ },
+
+ // Checks the current URL to see if it has changed, and if it has,
+ // calls `loadUrl`, normalizing across the hidden iframe.
+ checkUrl: function(e) {
+ var current = this.getFragment();
+
+ // If the user pressed the back button, the iframe's hash will have
+ // changed and we should use that for comparison.
+ if (current === this.fragment && this.iframe) {
+ current = this.getHash(this.iframe.contentWindow);
+ }
+
+ if (current === this.fragment) return false;
+ if (this.iframe) this.navigate(current);
+ this.loadUrl();
+ },
+
+ // Attempt to load the current URL fragment. If a route succeeds with a
+ // match, returns `true`. If no defined routes matches the fragment,
+ // returns `false`.
+ loadUrl: function(fragment) {
+ // If the root doesn't match, no routes can match either.
+ if (!this.matchRoot()) return false;
+ fragment = this.fragment = this.getFragment(fragment);
+ return _.some(this.handlers, function(handler) {
+ if (handler.route.test(fragment)) {
+ handler.callback(fragment);
+ return true;
+ }
+ });
+ },
+
+ // Save a fragment into the hash history, or replace the URL state if the
+ // 'replace' option is passed. You are responsible for properly URL-encoding
+ // the fragment in advance.
+ //
+ // The options object can contain `trigger: true` if you wish to have the
+ // route callback be fired (not usually desirable), or `replace: true`, if
+ // you wish to modify the current URL without adding an entry to the history.
+ navigate: function(fragment, options) {
+ if (!History.started) return false;
+ if (!options || options === true) options = {trigger: !!options};
+
+ // Normalize the fragment.
+ fragment = this.getFragment(fragment || '');
+
+ // Don't include a trailing slash on the root.
+ var rootPath = this.root;
+ if (fragment === '' || fragment.charAt(0) === '?') {
+ rootPath = rootPath.slice(0, -1) || '/';
+ }
+ var url = rootPath + fragment;
+
+ // Strip the hash and decode for matching.
+ fragment = this.decodeFragment(fragment.replace(pathStripper, ''));
+
+ if (this.fragment === fragment) return;
+ this.fragment = fragment;
+
+ // If pushState is available, we use it to set the fragment as a real URL.
+ if (this._usePushState) {
+ this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);
+
+ // If hash changes haven't been explicitly disabled, update the hash
+ // fragment to store history.
+ } else if (this._wantsHashChange) {
+ this._updateHash(this.location, fragment, options.replace);
+ if (this.iframe && fragment !== this.getHash(this.iframe.contentWindow)) {
+ var iWindow = this.iframe.contentWindow;
+
+ // Opening and closing the iframe tricks IE7 and earlier to push a
+ // history entry on hash-tag change. When replace is true, we don't
+ // want this.
+ if (!options.replace) {
+ iWindow.document.open();
+ iWindow.document.close();
+ }
+
+ this._updateHash(iWindow.location, fragment, options.replace);
+ }
+
+ // If you've told us that you explicitly don't want fallback hashchange-
+ // based history, then `navigate` becomes a page refresh.
+ } else {
+ return this.location.assign(url);
+ }
+ if (options.trigger) return this.loadUrl(fragment);
+ },
+
+ // Update the hash location, either replacing the current entry, or adding
+ // a new one to the browser history.
+ _updateHash: function(location, fragment, replace) {
+ if (replace) {
+ var href = location.href.replace(/(javascript:|#).*$/, '');
+ location.replace(href + '#' + fragment);
+ } else {
+ // Some browsers require that `hash` contains a leading #.
+ location.hash = '#' + fragment;
+ }
+ }
+
+ });
+
+ // Create the default Backbone.history.
+ Backbone.history = new History;
+
+ // Helpers
+ // -------
+
+ // Helper function to correctly set up the prototype chain for subclasses.
+ // Similar to `goog.inherits`, but uses a hash of prototype properties and
+ // class properties to be extended.
+ var extend = function(protoProps, staticProps) {
+ var parent = this;
+ var child;
+
+ // The constructor function for the new subclass is either defined by you
+ // (the "constructor" property in your `extend` definition), or defaulted
+ // by us to simply call the parent constructor.
+ if (protoProps && _.has(protoProps, 'constructor')) {
+ child = protoProps.constructor;
+ } else {
+ child = function(){ return parent.apply(this, arguments); };
+ }
+
+ // Add static properties to the constructor function, if supplied.
+ _.extend(child, parent, staticProps);
+
+ // Set the prototype chain to inherit from `parent`, without calling
+ // `parent`'s constructor function and add the prototype properties.
+ child.prototype = _.create(parent.prototype, protoProps);
+ child.prototype.constructor = child;
+
+ // Set a convenience property in case the parent's prototype is needed
+ // later.
+ child.__super__ = parent.prototype;
+
+ return child;
+ };
+
+ // Set up inheritance for the model, collection, router, view and history.
+ Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
+
+ // Throw an error when a URL is needed, and none is supplied.
+ var urlError = function() {
+ throw new Error('A "url" property or function must be specified');
+ };
+
+ // Wrap an optional error callback with a fallback error event.
+ var wrapError = function(model, options) {
+ var error = options.error;
+ options.error = function(resp) {
+ if (error) error.call(options.context, model, resp, options);
+ model.trigger('error', model, resp, options);
+ };
+ };
+
+ return Backbone;
+});
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.js
new file mode 100644
index 0000000000..32b22dbdd4
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.js
@@ -0,0 +1,10253 @@
+/*!
+ * jQuery JavaScript Library v3.2.1
+ * https://jquery.com/
+ *
+ * Includes Sizzle.js
+ * https://sizzlejs.com/
+ *
+ * Copyright JS Foundation and other contributors
+ * Released under the MIT license
+ * https://jquery.org/license
+ *
+ * Date: 2017-03-20T18:59Z
+ */
+( function( global, factory ) {
+
+ "use strict";
+
+ if ( typeof module === "object" && typeof module.exports === "object" ) {
+
+ // For CommonJS and CommonJS-like environments where a proper `window`
+ // is present, execute the factory and get jQuery.
+ // For environments that do not have a `window` with a `document`
+ // (such as Node.js), expose a factory as module.exports.
+ // This accentuates the need for the creation of a real `window`.
+ // e.g. var jQuery = require("jquery")(window);
+ // See ticket #14549 for more info.
+ module.exports = global.document ?
+ factory( global, true ) :
+ function( w ) {
+ if ( !w.document ) {
+ throw new Error( "jQuery requires a window with a document" );
+ }
+ return factory( w );
+ };
+ } else {
+ factory( global );
+ }
+
+// Pass this if window is not defined yet
+} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
+
+// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
+// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
+// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
+// enough that all such attempts are guarded in a try block.
+"use strict";
+
+var arr = [];
+
+var document = window.document;
+
+var getProto = Object.getPrototypeOf;
+
+var slice = arr.slice;
+
+var concat = arr.concat;
+
+var push = arr.push;
+
+var indexOf = arr.indexOf;
+
+var class2type = {};
+
+var toString = class2type.toString;
+
+var hasOwn = class2type.hasOwnProperty;
+
+var fnToString = hasOwn.toString;
+
+var ObjectFunctionString = fnToString.call( Object );
+
+var support = {};
+
+
+
+ function DOMEval( code, doc ) {
+ doc = doc || document;
+
+ var script = doc.createElement( "script" );
+
+ script.text = code;
+ doc.head.appendChild( script ).parentNode.removeChild( script );
+ }
+/* global Symbol */
+// Defining this global in .eslintrc.json would create a danger of using the global
+// unguarded in another place, it seems safer to define global only for this module
+
+
+
+var
+ version = "3.2.1",
+
+ // Define a local copy of jQuery
+ jQuery = function( selector, context ) {
+
+ // The jQuery object is actually just the init constructor 'enhanced'
+ // Need init if jQuery is called (just allow error to be thrown if not included)
+ return new jQuery.fn.init( selector, context );
+ },
+
+ // Support: Android <=4.0 only
+ // Make sure we trim BOM and NBSP
+ rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
+
+ // Matches dashed string for camelizing
+ rmsPrefix = /^-ms-/,
+ rdashAlpha = /-([a-z])/g,
+
+ // Used by jQuery.camelCase as callback to replace()
+ fcamelCase = function( all, letter ) {
+ return letter.toUpperCase();
+ };
+
+jQuery.fn = jQuery.prototype = {
+
+ // The current version of jQuery being used
+ jquery: version,
+
+ constructor: jQuery,
+
+ // The default length of a jQuery object is 0
+ length: 0,
+
+ toArray: function() {
+ return slice.call( this );
+ },
+
+ // Get the Nth element in the matched element set OR
+ // Get the whole matched element set as a clean array
+ get: function( num ) {
+
+ // Return all the elements in a clean array
+ if ( num == null ) {
+ return slice.call( this );
+ }
+
+ // Return just the one element from the set
+ return num < 0 ? this[ num + this.length ] : this[ num ];
+ },
+
+ // Take an array of elements and push it onto the stack
+ // (returning the new matched element set)
+ pushStack: function( elems ) {
+
+ // Build a new jQuery matched element set
+ var ret = jQuery.merge( this.constructor(), elems );
+
+ // Add the old object onto the stack (as a reference)
+ ret.prevObject = this;
+
+ // Return the newly-formed element set
+ return ret;
+ },
+
+ // Execute a callback for every element in the matched set.
+ each: function( callback ) {
+ return jQuery.each( this, callback );
+ },
+
+ map: function( callback ) {
+ return this.pushStack( jQuery.map( this, function( elem, i ) {
+ return callback.call( elem, i, elem );
+ } ) );
+ },
+
+ slice: function() {
+ return this.pushStack( slice.apply( this, arguments ) );
+ },
+
+ first: function() {
+ return this.eq( 0 );
+ },
+
+ last: function() {
+ return this.eq( -1 );
+ },
+
+ eq: function( i ) {
+ var len = this.length,
+ j = +i + ( i < 0 ? len : 0 );
+ return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
+ },
+
+ end: function() {
+ return this.prevObject || this.constructor();
+ },
+
+ // For internal use only.
+ // Behaves like an Array's method, not like a jQuery method.
+ push: push,
+ sort: arr.sort,
+ splice: arr.splice
+};
+
+jQuery.extend = jQuery.fn.extend = function() {
+ var options, name, src, copy, copyIsArray, clone,
+ target = arguments[ 0 ] || {},
+ i = 1,
+ length = arguments.length,
+ deep = false;
+
+ // Handle a deep copy situation
+ if ( typeof target === "boolean" ) {
+ deep = target;
+
+ // Skip the boolean and the target
+ target = arguments[ i ] || {};
+ i++;
+ }
+
+ // Handle case when target is a string or something (possible in deep copy)
+ if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
+ target = {};
+ }
+
+ // Extend jQuery itself if only one argument is passed
+ if ( i === length ) {
+ target = this;
+ i--;
+ }
+
+ for ( ; i < length; i++ ) {
+
+ // Only deal with non-null/undefined values
+ if ( ( options = arguments[ i ] ) != null ) {
+
+ // Extend the base object
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
+ // Prevent never-ending loop
+ if ( target === copy ) {
+ continue;
+ }
+
+ // Recurse if we're merging plain objects or arrays
+ if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
+ ( copyIsArray = Array.isArray( copy ) ) ) ) {
+
+ if ( copyIsArray ) {
+ copyIsArray = false;
+ clone = src && Array.isArray( src ) ? src : [];
+
+ } else {
+ clone = src && jQuery.isPlainObject( src ) ? src : {};
+ }
+
+ // Never move original objects, clone them
+ target[ name ] = jQuery.extend( deep, clone, copy );
+
+ // Don't bring in undefined values
+ } else if ( copy !== undefined ) {
+ target[ name ] = copy;
+ }
+ }
+ }
+ }
+
+ // Return the modified object
+ return target;
+};
+
+jQuery.extend( {
+
+ // Unique for each copy of jQuery on the page
+ expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
+
+ // Assume jQuery is ready without the ready module
+ isReady: true,
+
+ error: function( msg ) {
+ throw new Error( msg );
+ },
+
+ noop: function() {},
+
+ isFunction: function( obj ) {
+ return jQuery.type( obj ) === "function";
+ },
+
+ isWindow: function( obj ) {
+ return obj != null && obj === obj.window;
+ },
+
+ isNumeric: function( obj ) {
+
+ // As of jQuery 3.0, isNumeric is limited to
+ // strings and numbers (primitives or objects)
+ // that can be coerced to finite numbers (gh-2662)
+ var type = jQuery.type( obj );
+ return ( type === "number" || type === "string" ) &&
+
+ // parseFloat NaNs numeric-cast false positives ("")
+ // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
+ // subtraction forces infinities to NaN
+ !isNaN( obj - parseFloat( obj ) );
+ },
+
+ isPlainObject: function( obj ) {
+ var proto, Ctor;
+
+ // Detect obvious negatives
+ // Use toString instead of jQuery.type to catch host objects
+ if ( !obj || toString.call( obj ) !== "[object Object]" ) {
+ return false;
+ }
+
+ proto = getProto( obj );
+
+ // Objects with no prototype (e.g., `Object.create( null )`) are plain
+ if ( !proto ) {
+ return true;
+ }
+
+ // Objects with prototype are plain iff they were constructed by a global Object function
+ Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
+ return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
+ },
+
+ isEmptyObject: function( obj ) {
+
+ /* eslint-disable no-unused-vars */
+ // See https://github.com/eslint/eslint/issues/6125
+ var name;
+
+ for ( name in obj ) {
+ return false;
+ }
+ return true;
+ },
+
+ type: function( obj ) {
+ if ( obj == null ) {
+ return obj + "";
+ }
+
+ // Support: Android <=2.3 only (functionish RegExp)
+ return typeof obj === "object" || typeof obj === "function" ?
+ class2type[ toString.call( obj ) ] || "object" :
+ typeof obj;
+ },
+
+ // Evaluates a script in a global context
+ globalEval: function( code ) {
+ DOMEval( code );
+ },
+
+ // Convert dashed to camelCase; used by the css and data modules
+ // Support: IE <=9 - 11, Edge 12 - 13
+ // Microsoft forgot to hump their vendor prefix (#9572)
+ camelCase: function( string ) {
+ return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+ },
+
+ each: function( obj, callback ) {
+ var length, i = 0;
+
+ if ( isArrayLike( obj ) ) {
+ length = obj.length;
+ for ( ; i < length; i++ ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ } else {
+ for ( i in obj ) {
+ if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
+ break;
+ }
+ }
+ }
+
+ return obj;
+ },
+
+ // Support: Android <=4.0 only
+ trim: function( text ) {
+ return text == null ?
+ "" :
+ ( text + "" ).replace( rtrim, "" );
+ },
+
+ // results is for internal usage only
+ makeArray: function( arr, results ) {
+ var ret = results || [];
+
+ if ( arr != null ) {
+ if ( isArrayLike( Object( arr ) ) ) {
+ jQuery.merge( ret,
+ typeof arr === "string" ?
+ [ arr ] : arr
+ );
+ } else {
+ push.call( ret, arr );
+ }
+ }
+
+ return ret;
+ },
+
+ inArray: function( elem, arr, i ) {
+ return arr == null ? -1 : indexOf.call( arr, elem, i );
+ },
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ merge: function( first, second ) {
+ var len = +second.length,
+ j = 0,
+ i = first.length;
+
+ for ( ; j < len; j++ ) {
+ first[ i++ ] = second[ j ];
+ }
+
+ first.length = i;
+
+ return first;
+ },
+
+ grep: function( elems, callback, invert ) {
+ var callbackInverse,
+ matches = [],
+ i = 0,
+ length = elems.length,
+ callbackExpect = !invert;
+
+ // Go through the array, only saving the items
+ // that pass the validator function
+ for ( ; i < length; i++ ) {
+ callbackInverse = !callback( elems[ i ], i );
+ if ( callbackInverse !== callbackExpect ) {
+ matches.push( elems[ i ] );
+ }
+ }
+
+ return matches;
+ },
+
+ // arg is for internal usage only
+ map: function( elems, callback, arg ) {
+ var length, value,
+ i = 0,
+ ret = [];
+
+ // Go through the array, translating each of the items to their new values
+ if ( isArrayLike( elems ) ) {
+ length = elems.length;
+ for ( ; i < length; i++ ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+
+ // Go through every key on the object,
+ } else {
+ for ( i in elems ) {
+ value = callback( elems[ i ], i, arg );
+
+ if ( value != null ) {
+ ret.push( value );
+ }
+ }
+ }
+
+ // Flatten any nested arrays
+ return concat.apply( [], ret );
+ },
+
+ // A global GUID counter for objects
+ guid: 1,
+
+ // Bind a function to a context, optionally partially applying any
+ // arguments.
+ proxy: function( fn, context ) {
+ var tmp, args, proxy;
+
+ if ( typeof context === "string" ) {
+ tmp = fn[ context ];
+ context = fn;
+ fn = tmp;
+ }
+
+ // Quick check to determine if target is callable, in the spec
+ // this throws a TypeError, but we will just return undefined.
+ if ( !jQuery.isFunction( fn ) ) {
+ return undefined;
+ }
+
+ // Simulated bind
+ args = slice.call( arguments, 2 );
+ proxy = function() {
+ return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
+ };
+
+ // Set the guid of unique handler to the same of original handler, so it can be removed
+ proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+ return proxy;
+ },
+
+ now: Date.now,
+
+ // jQuery.support is not used in Core but other projects attach their
+ // properties to it so it needs to exist.
+ support: support
+} );
+
+if ( typeof Symbol === "function" ) {
+ jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
+}
+
+// Populate the class2type map
+jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
+function( i, name ) {
+ class2type[ "[object " + name + "]" ] = name.toLowerCase();
+} );
+
+function isArrayLike( obj ) {
+
+ // Support: real iOS 8.2 only (not reproducible in simulator)
+ // `in` check used to prevent JIT error (gh-2145)
+ // hasOwn isn't used here due to false negatives
+ // regarding Nodelist length in IE
+ var length = !!obj && "length" in obj && obj.length,
+ type = jQuery.type( obj );
+
+ if ( type === "function" || jQuery.isWindow( obj ) ) {
+ return false;
+ }
+
+ return type === "array" || length === 0 ||
+ typeof length === "number" && length > 0 && ( length - 1 ) in obj;
+}
+var Sizzle =
+/*!
+ * Sizzle CSS Selector Engine v2.3.3
+ * https://sizzlejs.com/
+ *
+ * Copyright jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2016-08-08
+ */
+(function( window ) {
+
+var i,
+ support,
+ Expr,
+ getText,
+ isXML,
+ tokenize,
+ compile,
+ select,
+ outermostContext,
+ sortInput,
+ hasDuplicate,
+
+ // Local document vars
+ setDocument,
+ document,
+ docElem,
+ documentIsHTML,
+ rbuggyQSA,
+ rbuggyMatches,
+ matches,
+ contains,
+
+ // Instance-specific data
+ expando = "sizzle" + 1 * new Date(),
+ preferredDoc = window.document,
+ dirruns = 0,
+ done = 0,
+ classCache = createCache(),
+ tokenCache = createCache(),
+ compilerCache = createCache(),
+ sortOrder = function( a, b ) {
+ if ( a === b ) {
+ hasDuplicate = true;
+ }
+ return 0;
+ },
+
+ // Instance methods
+ hasOwn = ({}).hasOwnProperty,
+ arr = [],
+ pop = arr.pop,
+ push_native = arr.push,
+ push = arr.push,
+ slice = arr.slice,
+ // Use a stripped-down indexOf as it's faster than native
+ // https://jsperf.com/thor-indexof-vs-for/5
+ indexOf = function( list, elem ) {
+ var i = 0,
+ len = list.length;
+ for ( ; i < len; i++ ) {
+ if ( list[i] === elem ) {
+ return i;
+ }
+ }
+ return -1;
+ },
+
+ booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
+
+ // Regular expressions
+
+ // http://www.w3.org/TR/css3-selectors/#whitespace
+ whitespace = "[\\x20\\t\\r\\n\\f]",
+
+ // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+ identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
+
+ // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
+ attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
+ // Operator (capture 2)
+ "*([*^$|!~]?=)" + whitespace +
+ // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
+ "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
+ "*\\]",
+
+ pseudos = ":(" + identifier + ")(?:\\((" +
+ // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
+ // 1. quoted (capture 3; capture 4 or capture 5)
+ "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
+ // 2. simple (capture 6)
+ "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
+ // 3. anything else (capture 2)
+ ".*" +
+ ")\\)|)",
+
+ // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+ rwhitespace = new RegExp( whitespace + "+", "g" ),
+ rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+ rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+ rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
+
+ rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
+
+ rpseudo = new RegExp( pseudos ),
+ ridentifier = new RegExp( "^" + identifier + "$" ),
+
+ matchExpr = {
+ "ID": new RegExp( "^#(" + identifier + ")" ),
+ "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
+ "TAG": new RegExp( "^(" + identifier + "|[*])" ),
+ "ATTR": new RegExp( "^" + attributes ),
+ "PSEUDO": new RegExp( "^" + pseudos ),
+ "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+ "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+ "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+ "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
+ // For use in libraries implementing .is()
+ // We use this for POS matching in `select`
+ "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+ whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+ },
+
+ rinputs = /^(?:input|select|textarea|button)$/i,
+ rheader = /^h\d$/i,
+
+ rnative = /^[^{]+\{\s*\[native \w/,
+
+ // Easily-parseable/retrievable ID or TAG or CLASS selectors
+ rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+ rsibling = /[+~]/,
+
+ // CSS escapes
+ // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+ runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
+ funescape = function( _, escaped, escapedWhitespace ) {
+ var high = "0x" + escaped - 0x10000;
+ // NaN means non-codepoint
+ // Support: Firefox<24
+ // Workaround erroneous numeric interpretation of +"0x"
+ return high !== high || escapedWhitespace ?
+ escaped :
+ high < 0 ?
+ // BMP codepoint
+ String.fromCharCode( high + 0x10000 ) :
+ // Supplemental Plane codepoint (surrogate pair)
+ String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+ },
+
+ // CSS string/identifier serialization
+ // https://drafts.csswg.org/cssom/#common-serializing-idioms
+ rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
+ fcssescape = function( ch, asCodePoint ) {
+ if ( asCodePoint ) {
+
+ // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
+ if ( ch === "\0" ) {
+ return "\uFFFD";
+ }
+
+ // Control characters and (dependent upon position) numbers get escaped as code points
+ return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
+ }
+
+ // Other potentially-special ASCII characters get backslash-escaped
+ return "\\" + ch;
+ },
+
+ // Used for iframes
+ // See setDocument()
+ // Removing the function wrapper causes a "Permission Denied"
+ // error in IE
+ unloadHandler = function() {
+ setDocument();
+ },
+
+ disabledAncestor = addCombinator(
+ function( elem ) {
+ return elem.disabled === true && ("form" in elem || "label" in elem);
+ },
+ { dir: "parentNode", next: "legend" }
+ );
+
+// Optimize for push.apply( _, NodeList )
+try {
+ push.apply(
+ (arr = slice.call( preferredDoc.childNodes )),
+ preferredDoc.childNodes
+ );
+ // Support: Android<4.0
+ // Detect silently failing push.apply
+ arr[ preferredDoc.childNodes.length ].nodeType;
+} catch ( e ) {
+ push = { apply: arr.length ?
+
+ // Leverage slice if possible
+ function( target, els ) {
+ push_native.apply( target, slice.call(els) );
+ } :
+
+ // Support: IE<9
+ // Otherwise append directly
+ function( target, els ) {
+ var j = target.length,
+ i = 0;
+ // Can't trust NodeList.length
+ while ( (target[j++] = els[i++]) ) {}
+ target.length = j - 1;
+ }
+ };
+}
+
+function Sizzle( selector, context, results, seed ) {
+ var m, i, elem, nid, match, groups, newSelector,
+ newContext = context && context.ownerDocument,
+
+ // nodeType defaults to 9, since context defaults to document
+ nodeType = context ? context.nodeType : 9;
+
+ results = results || [];
+
+ // Return early from calls with invalid selector or context
+ if ( typeof selector !== "string" || !selector ||
+ nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
+
+ return results;
+ }
+
+ // Try to shortcut find operations (as opposed to filters) in HTML documents
+ if ( !seed ) {
+
+ if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+ setDocument( context );
+ }
+ context = context || document;
+
+ if ( documentIsHTML ) {
+
+ // If the selector is sufficiently simple, try using a "get*By*" DOM method
+ // (excepting DocumentFragment context, where the methods don't exist)
+ if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
+
+ // ID selector
+ if ( (m = match[1]) ) {
+
+ // Document context
+ if ( nodeType === 9 ) {
+ if ( (elem = context.getElementById( m )) ) {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( elem.id === m ) {
+ results.push( elem );
+ return results;
+ }
+ } else {
+ return results;
+ }
+
+ // Element context
+ } else {
+
+ // Support: IE, Opera, Webkit
+ // TODO: identify versions
+ // getElementById can match elements by name instead of ID
+ if ( newContext && (elem = newContext.getElementById( m )) &&
+ contains( context, elem ) &&
+ elem.id === m ) {
+
+ results.push( elem );
+ return results;
+ }
+ }
+
+ // Type selector
+ } else if ( match[2] ) {
+ push.apply( results, context.getElementsByTagName( selector ) );
+ return results;
+
+ // Class selector
+ } else if ( (m = match[3]) && support.getElementsByClassName &&
+ context.getElementsByClassName ) {
+
+ push.apply( results, context.getElementsByClassName( m ) );
+ return results;
+ }
+ }
+
+ // Take advantage of querySelectorAll
+ if ( support.qsa &&
+ !compilerCache[ selector + " " ] &&
+ (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
+
+ if ( nodeType !== 1 ) {
+ newContext = context;
+ newSelector = selector;
+
+ // qSA looks outside Element context, which is not what we want
+ // Thanks to Andrew Dupont for this workaround technique
+ // Support: IE <=8
+ // Exclude object elements
+ } else if ( context.nodeName.toLowerCase() !== "object" ) {
+
+ // Capture the context ID, setting it first if necessary
+ if ( (nid = context.getAttribute( "id" )) ) {
+ nid = nid.replace( rcssescape, fcssescape );
+ } else {
+ context.setAttribute( "id", (nid = expando) );
+ }
+
+ // Prefix every selector in the list
+ groups = tokenize( selector );
+ i = groups.length;
+ while ( i-- ) {
+ groups[i] = "#" + nid + " " + toSelector( groups[i] );
+ }
+ newSelector = groups.join( "," );
+
+ // Expand context for sibling selectors
+ newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
+ context;
+ }
+
+ if ( newSelector ) {
+ try {
+ push.apply( results,
+ newContext.querySelectorAll( newSelector )
+ );
+ return results;
+ } catch ( qsaError ) {
+ } finally {
+ if ( nid === expando ) {
+ context.removeAttribute( "id" );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // All others
+ return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {function(string, object)} Returns the Object data after storing it on itself with
+ * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ * deleting the oldest entry
+ */
+function createCache() {
+ var keys = [];
+
+ function cache( key, value ) {
+ // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+ if ( keys.push( key + " " ) > Expr.cacheLength ) {
+ // Only keep the most recent entries
+ delete cache[ keys.shift() ];
+ }
+ return (cache[ key + " " ] = value);
+ }
+ return cache;
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+ fn[ expando ] = true;
+ return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created element and returns a boolean result
+ */
+function assert( fn ) {
+ var el = document.createElement("fieldset");
+
+ try {
+ return !!fn( el );
+ } catch (e) {
+ return false;
+ } finally {
+ // Remove from its parent by default
+ if ( el.parentNode ) {
+ el.parentNode.removeChild( el );
+ }
+ // release memory in IE
+ el = null;
+ }
+}
+
+/**
+ * Adds the same handler for all of the specified attrs
+ * @param {String} attrs Pipe-separated list of attributes
+ * @param {Function} handler The method that will be applied
+ */
+function addHandle( attrs, handler ) {
+ var arr = attrs.split("|"),
+ i = arr.length;
+
+ while ( i-- ) {
+ Expr.attrHandle[ arr[i] ] = handler;
+ }
+}
+
+/**
+ * Checks document order of two siblings
+ * @param {Element} a
+ * @param {Element} b
+ * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
+ */
+function siblingCheck( a, b ) {
+ var cur = b && a,
+ diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
+ a.sourceIndex - b.sourceIndex;
+
+ // Use IE sourceIndex if available on both nodes
+ if ( diff ) {
+ return diff;
+ }
+
+ // Check if b follows a
+ if ( cur ) {
+ while ( (cur = cur.nextSibling) ) {
+ if ( cur === b ) {
+ return -1;
+ }
+ }
+ }
+
+ return a ? 1 : -1;
+}
+
+/**
+ * Returns a function to use in pseudos for input types
+ * @param {String} type
+ */
+function createInputPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for buttons
+ * @param {String} type
+ */
+function createButtonPseudo( type ) {
+ return function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return (name === "input" || name === "button") && elem.type === type;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for :enabled/:disabled
+ * @param {Boolean} disabled true for :disabled; false for :enabled
+ */
+function createDisabledPseudo( disabled ) {
+
+ // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
+ return function( elem ) {
+
+ // Only certain elements can match :enabled or :disabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
+ // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
+ if ( "form" in elem ) {
+
+ // Check for inherited disabledness on relevant non-disabled elements:
+ // * listed form-associated elements in a disabled fieldset
+ // https://html.spec.whatwg.org/multipage/forms.html#category-listed
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
+ // * option elements in a disabled optgroup
+ // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
+ // All such elements have a "form" property.
+ if ( elem.parentNode && elem.disabled === false ) {
+
+ // Option elements defer to a parent optgroup if present
+ if ( "label" in elem ) {
+ if ( "label" in elem.parentNode ) {
+ return elem.parentNode.disabled === disabled;
+ } else {
+ return elem.disabled === disabled;
+ }
+ }
+
+ // Support: IE 6 - 11
+ // Use the isDisabled shortcut property to check for disabled fieldset ancestors
+ return elem.isDisabled === disabled ||
+
+ // Where there is no isDisabled, check manually
+ /* jshint -W018 */
+ elem.isDisabled !== !disabled &&
+ disabledAncestor( elem ) === disabled;
+ }
+
+ return elem.disabled === disabled;
+
+ // Try to winnow out elements that can't be disabled before trusting the disabled property.
+ // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
+ // even exist on them, let alone have a boolean value.
+ } else if ( "label" in elem ) {
+ return elem.disabled === disabled;
+ }
+
+ // Remaining elements are neither :enabled nor :disabled
+ return false;
+ };
+}
+
+/**
+ * Returns a function to use in pseudos for positionals
+ * @param {Function} fn
+ */
+function createPositionalPseudo( fn ) {
+ return markFunction(function( argument ) {
+ argument = +argument;
+ return markFunction(function( seed, matches ) {
+ var j,
+ matchIndexes = fn( [], seed.length, argument ),
+ i = matchIndexes.length;
+
+ // Match elements found at the specified indexes
+ while ( i-- ) {
+ if ( seed[ (j = matchIndexes[i]) ] ) {
+ seed[j] = !(matches[j] = seed[j]);
+ }
+ }
+ });
+ });
+}
+
+/**
+ * Checks a node for validity as a Sizzle context
+ * @param {Element|Object=} context
+ * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
+ */
+function testContext( context ) {
+ return context && typeof context.getElementsByTagName !== "undefined" && context;
+}
+
+// Expose support vars for convenience
+support = Sizzle.support = {};
+
+/**
+ * Detects XML nodes
+ * @param {Element|Object} elem An element or a document
+ * @returns {Boolean} True iff elem is a non-HTML XML node
+ */
+isXML = Sizzle.isXML = function( elem ) {
+ // documentElement is verified for cases where it doesn't yet exist
+ // (such as loading iframes in IE - #4833)
+ var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+ return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+ var hasCompare, subWindow,
+ doc = node ? node.ownerDocument || node : preferredDoc;
+
+ // Return early if doc is invalid or already selected
+ if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+ return document;
+ }
+
+ // Update global variables
+ document = doc;
+ docElem = document.documentElement;
+ documentIsHTML = !isXML( document );
+
+ // Support: IE 9-11, Edge
+ // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
+ if ( preferredDoc !== document &&
+ (subWindow = document.defaultView) && subWindow.top !== subWindow ) {
+
+ // Support: IE 11, Edge
+ if ( subWindow.addEventListener ) {
+ subWindow.addEventListener( "unload", unloadHandler, false );
+
+ // Support: IE 9 - 10 only
+ } else if ( subWindow.attachEvent ) {
+ subWindow.attachEvent( "onunload", unloadHandler );
+ }
+ }
+
+ /* Attributes
+ ---------------------------------------------------------------------- */
+
+ // Support: IE<8
+ // Verify that getAttribute really returns attributes and not properties
+ // (excepting IE8 booleans)
+ support.attributes = assert(function( el ) {
+ el.className = "i";
+ return !el.getAttribute("className");
+ });
+
+ /* getElement(s)By*
+ ---------------------------------------------------------------------- */
+
+ // Check if getElementsByTagName("*") returns only elements
+ support.getElementsByTagName = assert(function( el ) {
+ el.appendChild( document.createComment("") );
+ return !el.getElementsByTagName("*").length;
+ });
+
+ // Support: IE<9
+ support.getElementsByClassName = rnative.test( document.getElementsByClassName );
+
+ // Support: IE<10
+ // Check if getElementById returns elements by name
+ // The broken getElementById methods don't pick up programmatically-set names,
+ // so use a roundabout getElementsByName test
+ support.getById = assert(function( el ) {
+ docElem.appendChild( el ).id = expando;
+ return !document.getElementsByName || !document.getElementsByName( expando ).length;
+ });
+
+ // ID filter and find
+ if ( support.getById ) {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ return elem.getAttribute("id") === attrId;
+ };
+ };
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var elem = context.getElementById( id );
+ return elem ? [ elem ] : [];
+ }
+ };
+ } else {
+ Expr.filter["ID"] = function( id ) {
+ var attrId = id.replace( runescape, funescape );
+ return function( elem ) {
+ var node = typeof elem.getAttributeNode !== "undefined" &&
+ elem.getAttributeNode("id");
+ return node && node.value === attrId;
+ };
+ };
+
+ // Support: IE 6 - 7 only
+ // getElementById is not reliable as a find shortcut
+ Expr.find["ID"] = function( id, context ) {
+ if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
+ var node, i, elems,
+ elem = context.getElementById( id );
+
+ if ( elem ) {
+
+ // Verify the id attribute
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+
+ // Fall back on getElementsByName
+ elems = context.getElementsByName( id );
+ i = 0;
+ while ( (elem = elems[i++]) ) {
+ node = elem.getAttributeNode("id");
+ if ( node && node.value === id ) {
+ return [ elem ];
+ }
+ }
+ }
+
+ return [];
+ }
+ };
+ }
+
+ // Tag
+ Expr.find["TAG"] = support.getElementsByTagName ?
+ function( tag, context ) {
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ return context.getElementsByTagName( tag );
+
+ // DocumentFragment nodes don't have gEBTN
+ } else if ( support.qsa ) {
+ return context.querySelectorAll( tag );
+ }
+ } :
+
+ function( tag, context ) {
+ var elem,
+ tmp = [],
+ i = 0,
+ // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
+ results = context.getElementsByTagName( tag );
+
+ // Filter out possible comments
+ if ( tag === "*" ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem.nodeType === 1 ) {
+ tmp.push( elem );
+ }
+ }
+
+ return tmp;
+ }
+ return results;
+ };
+
+ // Class
+ Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
+ if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
+ return context.getElementsByClassName( className );
+ }
+ };
+
+ /* QSA/matchesSelector
+ ---------------------------------------------------------------------- */
+
+ // QSA and matchesSelector support
+
+ // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+ rbuggyMatches = [];
+
+ // qSa(:focus) reports false when true (Chrome 21)
+ // We allow this because of a bug in IE8/9 that throws an error
+ // whenever `document.activeElement` is accessed on an iframe
+ // So, we allow :focus to pass through QSA all the time to avoid the IE error
+ // See https://bugs.jquery.com/ticket/13378
+ rbuggyQSA = [];
+
+ if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
+ // Build QSA regex
+ // Regex strategy adopted from Diego Perini
+ assert(function( el ) {
+ // Select is set to empty string on purpose
+ // This is to test IE's treatment of not explicitly
+ // setting a boolean content attribute,
+ // since its presence should be enough
+ // https://bugs.jquery.com/ticket/12359
+ docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
+ "<select id='" + expando + "-\r\\' msallowcapture=''>" +
+ "<option selected=''></option></select>";
+
+ // Support: IE8, Opera 11-12.16
+ // Nothing should be selected when empty strings follow ^= or $= or *=
+ // The test attribute must be unknown in Opera but "safe" for WinRT
+ // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
+ if ( el.querySelectorAll("[msallowcapture^='']").length ) {
+ rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
+ }
+
+ // Support: IE8
+ // Boolean attributes and "value" are not treated correctly
+ if ( !el.querySelectorAll("[selected]").length ) {
+ rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
+ }
+
+ // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
+ if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
+ rbuggyQSA.push("~=");
+ }
+
+ // Webkit/Opera - :checked should return selected option elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ // IE8 throws error here and will not see later tests
+ if ( !el.querySelectorAll(":checked").length ) {
+ rbuggyQSA.push(":checked");
+ }
+
+ // Support: Safari 8+, iOS 8+
+ // https://bugs.webkit.org/show_bug.cgi?id=136851
+ // In-page `selector#id sibling-combinator selector` fails
+ if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
+ rbuggyQSA.push(".#.+[+~]");
+ }
+ });
+
+ assert(function( el ) {
+ el.innerHTML = "<a href='' disabled='disabled'></a>" +
+ "<select disabled='disabled'><option/></select>";
+
+ // Support: Windows 8 Native Apps
+ // The type and name attributes are restricted during .innerHTML assignment
+ var input = document.createElement("input");
+ input.setAttribute( "type", "hidden" );
+ el.appendChild( input ).setAttribute( "name", "D" );
+
+ // Support: IE8
+ // Enforce case-sensitivity of name attribute
+ if ( el.querySelectorAll("[name=d]").length ) {
+ rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
+ }
+
+ // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+ // IE8 throws error here and will not see later tests
+ if ( el.querySelectorAll(":enabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Support: IE9-11+
+ // IE's :disabled selector does not pick up the children of disabled fieldsets
+ docElem.appendChild( el ).disabled = true;
+ if ( el.querySelectorAll(":disabled").length !== 2 ) {
+ rbuggyQSA.push( ":enabled", ":disabled" );
+ }
+
+ // Opera 10-11 does not throw on post-comma invalid pseudos
+ el.querySelectorAll("*,:x");
+ rbuggyQSA.push(",.*:");
+ });
+ }
+
+ if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
+ docElem.webkitMatchesSelector ||
+ docElem.mozMatchesSelector ||
+ docElem.oMatchesSelector ||
+ docElem.msMatchesSelector) )) ) {
+
+ assert(function( el ) {
+ // Check to see if it's possible to do matchesSelector
+ // on a disconnected node (IE 9)
+ support.disconnectedMatch = matches.call( el, "*" );
+
+ // This should fail with an exception
+ // Gecko does not error, returns false instead
+ matches.call( el, "[s!='']:x" );
+ rbuggyMatches.push( "!=", pseudos );
+ });
+ }
+
+ rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
+ rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
+
+ /* Contains
+ ---------------------------------------------------------------------- */
+ hasCompare = rnative.test( docElem.compareDocumentPosition );
+
+ // Element contains another
+ // Purposefully self-exclusive
+ // As in, an element does not contain itself
+ contains = hasCompare || rnative.test( docElem.contains ) ?
+ function( a, b ) {
+ var adown = a.nodeType === 9 ? a.documentElement : a,
+ bup = b && b.parentNode;
+ return a === bup || !!( bup && bup.nodeType === 1 && (
+ adown.contains ?
+ adown.contains( bup ) :
+ a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+ ));
+ } :
+ function( a, b ) {
+ if ( b ) {
+ while ( (b = b.parentNode) ) {
+ if ( b === a ) {
+ return true;
+ }
+ }
+ }
+ return false;
+ };
+
+ /* Sorting
+ ---------------------------------------------------------------------- */
+
+ // Document order sorting
+ sortOrder = hasCompare ?
+ function( a, b ) {
+
+ // Flag for duplicate removal
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ // Sort on method existence if only one input has compareDocumentPosition
+ var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
+ if ( compare ) {
+ return compare;
+ }
+
+ // Calculate position if both inputs belong to the same document
+ compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
+ a.compareDocumentPosition( b ) :
+
+ // Otherwise we know they are disconnected
+ 1;
+
+ // Disconnected nodes
+ if ( compare & 1 ||
+ (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
+
+ // Choose the first element that is related to our preferred document
+ if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
+ return -1;
+ }
+ if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
+ return 1;
+ }
+
+ // Maintain original order
+ return sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+ }
+
+ return compare & 4 ? -1 : 1;
+ } :
+ function( a, b ) {
+ // Exit early if the nodes are identical
+ if ( a === b ) {
+ hasDuplicate = true;
+ return 0;
+ }
+
+ var cur,
+ i = 0,
+ aup = a.parentNode,
+ bup = b.parentNode,
+ ap = [ a ],
+ bp = [ b ];
+
+ // Parentless nodes are either documents or disconnected
+ if ( !aup || !bup ) {
+ return a === document ? -1 :
+ b === document ? 1 :
+ aup ? -1 :
+ bup ? 1 :
+ sortInput ?
+ ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
+ 0;
+
+ // If the nodes are siblings, we can do a quick check
+ } else if ( aup === bup ) {
+ return siblingCheck( a, b );
+ }
+
+ // Otherwise we need full lists of their ancestors for comparison
+ cur = a;
+ while ( (cur = cur.parentNode) ) {
+ ap.unshift( cur );
+ }
+ cur = b;
+ while ( (cur = cur.parentNode) ) {
+ bp.unshift( cur );
+ }
+
+ // Walk down the tree looking for a discrepancy
+ while ( ap[i] === bp[i] ) {
+ i++;
+ }
+
+ return i ?
+ // Do a sibling check if the nodes have a common ancestor
+ siblingCheck( ap[i], bp[i] ) :
+
+ // Otherwise nodes in our document sort first
+ ap[i] === preferredDoc ? -1 :
+ bp[i] === preferredDoc ? 1 :
+ 0;
+ };
+
+ return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+ return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ // Make sure that attribute selectors are quoted
+ expr = expr.replace( rattributeQuotes, "='$1']" );
+
+ if ( support.matchesSelector && documentIsHTML &&
+ !compilerCache[ expr + " " ] &&
+ ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
+ ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
+
+ try {
+ var ret = matches.call( elem, expr );
+
+ // IE 9's matchesSelector returns false on disconnected nodes
+ if ( ret || support.disconnectedMatch ||
+ // As well, disconnected nodes are said to be in a document
+ // fragment in IE 9
+ elem.document && elem.document.nodeType !== 11 ) {
+ return ret;
+ }
+ } catch (e) {}
+ }
+
+ return Sizzle( expr, document, null, [ elem ] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+ // Set document vars if needed
+ if ( ( context.ownerDocument || context ) !== document ) {
+ setDocument( context );
+ }
+ return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+ // Set document vars if needed
+ if ( ( elem.ownerDocument || elem ) !== document ) {
+ setDocument( elem );
+ }
+
+ var fn = Expr.attrHandle[ name.toLowerCase() ],
+ // Don't get fooled by Object.prototype properties (jQuery #13807)
+ val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
+ fn( elem, name, !documentIsHTML ) :
+ undefined;
+
+ return val !== undefined ?
+ val :
+ support.attributes || !documentIsHTML ?
+ elem.getAttribute( name ) :
+ (val = elem.getAttributeNode(name)) && val.specified ?
+ val.value :
+ null;
+};
+
+Sizzle.escape = function( sel ) {
+ return (sel + "").replace( rcssescape, fcssescape );
+};
+
+Sizzle.error = function( msg ) {
+ throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+/**
+ * Document sorting and removing duplicates
+ * @param {ArrayLike} results
+ */
+Sizzle.uniqueSort = function( results ) {
+ var elem,
+ duplicates = [],
+ j = 0,
+ i = 0;
+
+ // Unless we *know* we can detect duplicates, assume their presence
+ hasDuplicate = !support.detectDuplicates;
+ sortInput = !support.sortStable && results.slice( 0 );
+ results.sort( sortOrder );
+
+ if ( hasDuplicate ) {
+ while ( (elem = results[i++]) ) {
+ if ( elem === results[ i ] ) {
+ j = duplicates.push( i );
+ }
+ }
+ while ( j-- ) {
+ results.splice( duplicates[ j ], 1 );
+ }
+ }
+
+ // Clear input after sorting to release objects
+ // See https://github.com/jquery/sizzle/pull/225
+ sortInput = null;
+
+ return results;
+};
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+ var node,
+ ret = "",
+ i = 0,
+ nodeType = elem.nodeType;
+
+ if ( !nodeType ) {
+ // If no nodeType, this is expected to be an array
+ while ( (node = elem[i++]) ) {
+ // Do not traverse comment nodes
+ ret += getText( node );
+ }
+ } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+ // Use textContent for elements
+ // innerText usage removed for consistency of new lines (jQuery #11153)
+ if ( typeof elem.textContent === "string" ) {
+ return elem.textContent;
+ } else {
+ // Traverse its children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ ret += getText( elem );
+ }
+ }
+ } else if ( nodeType === 3 || nodeType === 4 ) {
+ return elem.nodeValue;
+ }
+ // Do not include comment or processing instruction nodes
+
+ return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+ // Can be adjusted by the user
+ cacheLength: 50,
+
+ createPseudo: markFunction,
+
+ match: matchExpr,
+
+ attrHandle: {},
+
+ find: {},
+
+ relative: {
+ ">": { dir: "parentNode", first: true },
+ " ": { dir: "parentNode" },
+ "+": { dir: "previousSibling", first: true },
+ "~": { dir: "previousSibling" }
+ },
+
+ preFilter: {
+ "ATTR": function( match ) {
+ match[1] = match[1].replace( runescape, funescape );
+
+ // Move the given value to match[3] whether quoted or unquoted
+ match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
+
+ if ( match[2] === "~=" ) {
+ match[3] = " " + match[3] + " ";
+ }
+
+ return match.slice( 0, 4 );
+ },
+
+ "CHILD": function( match ) {
+ /* matches from matchExpr["CHILD"]
+ 1 type (only|nth|...)
+ 2 what (child|of-type)
+ 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+ 4 xn-component of xn+y argument ([+-]?\d*n|)
+ 5 sign of xn-component
+ 6 x of xn-component
+ 7 sign of y-component
+ 8 y of y-component
+ */
+ match[1] = match[1].toLowerCase();
+
+ if ( match[1].slice( 0, 3 ) === "nth" ) {
+ // nth-* requires argument
+ if ( !match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ // numeric x and y parameters for Expr.filter.CHILD
+ // remember that false/true cast respectively to 0/1
+ match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+ match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+ // other types prohibit arguments
+ } else if ( match[3] ) {
+ Sizzle.error( match[0] );
+ }
+
+ return match;
+ },
+
+ "PSEUDO": function( match ) {
+ var excess,
+ unquoted = !match[6] && match[2];
+
+ if ( matchExpr["CHILD"].test( match[0] ) ) {
+ return null;
+ }
+
+ // Accept quoted arguments as-is
+ if ( match[3] ) {
+ match[2] = match[4] || match[5] || "";
+
+ // Strip excess characters from unquoted arguments
+ } else if ( unquoted && rpseudo.test( unquoted ) &&
+ // Get excess from tokenize (recursively)
+ (excess = tokenize( unquoted, true )) &&
+ // advance to the next closing parenthesis
+ (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+ // excess is a negative index
+ match[0] = match[0].slice( 0, excess );
+ match[2] = unquoted.slice( 0, excess );
+ }
+
+ // Return only captures needed by the pseudo filter method (type and argument)
+ return match.slice( 0, 3 );
+ }
+ },
+
+ filter: {
+
+ "TAG": function( nodeNameSelector ) {
+ var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
+ return nodeNameSelector === "*" ?
+ function() { return true; } :
+ function( elem ) {
+ return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+ };
+ },
+
+ "CLASS": function( className ) {
+ var pattern = classCache[ className + " " ];
+
+ return pattern ||
+ (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+ classCache( className, function( elem ) {
+ return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
+ });
+ },
+
+ "ATTR": function( name, operator, check ) {
+ return function( elem ) {
+ var result = Sizzle.attr( elem, name );
+
+ if ( result == null ) {
+ return operator === "!=";
+ }
+ if ( !operator ) {
+ return true;
+ }
+
+ result += "";
+
+ return operator === "=" ? result === check :
+ operator === "!=" ? result !== check :
+ operator === "^=" ? check && result.indexOf( check ) === 0 :
+ operator === "*=" ? check && result.indexOf( check ) > -1 :
+ operator === "$=" ? check && result.slice( -check.length ) === check :
+ operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
+ operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
+ false;
+ };
+ },
+
+ "CHILD": function( type, what, argument, first, last ) {
+ var simple = type.slice( 0, 3 ) !== "nth",
+ forward = type.slice( -4 ) !== "last",
+ ofType = what === "of-type";
+
+ return first === 1 && last === 0 ?
+
+ // Shortcut for :nth-*(n)
+ function( elem ) {
+ return !!elem.parentNode;
+ } :
+
+ function( elem, context, xml ) {
+ var cache, uniqueCache, outerCache, node, nodeIndex, start,
+ dir = simple !== forward ? "nextSibling" : "previousSibling",
+ parent = elem.parentNode,
+ name = ofType && elem.nodeName.toLowerCase(),
+ useCache = !xml && !ofType,
+ diff = false;
+
+ if ( parent ) {
+
+ // :(first|last|only)-(child|of-type)
+ if ( simple ) {
+ while ( dir ) {
+ node = elem;
+ while ( (node = node[ dir ]) ) {
+ if ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) {
+
+ return false;
+ }
+ }
+ // Reverse direction for :only-* (if we haven't yet done so)
+ start = dir = type === "only" && !start && "nextSibling";
+ }
+ return true;
+ }
+
+ start = [ forward ? parent.firstChild : parent.lastChild ];
+
+ // non-xml :nth-child(...) stores cache data on `parent`
+ if ( forward && useCache ) {
+
+ // Seek `elem` from a previously-cached index
+
+ // ...in a gzip-friendly way
+ node = parent;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex && cache[ 2 ];
+ node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+ // Fallback to seeking `elem` from the start
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ // When found, cache indexes on `parent` and break
+ if ( node.nodeType === 1 && ++diff && node === elem ) {
+ uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
+ break;
+ }
+ }
+
+ } else {
+ // Use previously-cached element index if available
+ if ( useCache ) {
+ // ...in a gzip-friendly way
+ node = elem;
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ cache = uniqueCache[ type ] || [];
+ nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
+ diff = nodeIndex;
+ }
+
+ // xml :nth-child(...)
+ // or :nth-last-child(...) or :nth(-last)?-of-type(...)
+ if ( diff === false ) {
+ // Use the same loop as above to seek `elem` from the start
+ while ( (node = ++nodeIndex && node && node[ dir ] ||
+ (diff = nodeIndex = 0) || start.pop()) ) {
+
+ if ( ( ofType ?
+ node.nodeName.toLowerCase() === name :
+ node.nodeType === 1 ) &&
+ ++diff ) {
+
+ // Cache the index of each encountered element
+ if ( useCache ) {
+ outerCache = node[ expando ] || (node[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ node.uniqueID ] ||
+ (outerCache[ node.uniqueID ] = {});
+
+ uniqueCache[ type ] = [ dirruns, diff ];
+ }
+
+ if ( node === elem ) {
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Incorporate the offset, then check against cycle size
+ diff -= last;
+ return diff === first || ( diff % first === 0 && diff / first >= 0 );
+ }
+ };
+ },
+
+ "PSEUDO": function( pseudo, argument ) {
+ // pseudo-class names are case-insensitive
+ // http://www.w3.org/TR/selectors/#pseudo-classes
+ // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+ // Remember that setFilters inherits from pseudos
+ var args,
+ fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+ Sizzle.error( "unsupported pseudo: " + pseudo );
+
+ // The user may use createPseudo to indicate that
+ // arguments are needed to create the filter function
+ // just as Sizzle does
+ if ( fn[ expando ] ) {
+ return fn( argument );
+ }
+
+ // But maintain support for old signatures
+ if ( fn.length > 1 ) {
+ args = [ pseudo, pseudo, "", argument ];
+ return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+ markFunction(function( seed, matches ) {
+ var idx,
+ matched = fn( seed, argument ),
+ i = matched.length;
+ while ( i-- ) {
+ idx = indexOf( seed, matched[i] );
+ seed[ idx ] = !( matches[ idx ] = matched[i] );
+ }
+ }) :
+ function( elem ) {
+ return fn( elem, 0, args );
+ };
+ }
+
+ return fn;
+ }
+ },
+
+ pseudos: {
+ // Potentially complex pseudos
+ "not": markFunction(function( selector ) {
+ // Trim the selector passed to compile
+ // to avoid treating leading and trailing
+ // spaces as combinators
+ var input = [],
+ results = [],
+ matcher = compile( selector.replace( rtrim, "$1" ) );
+
+ return matcher[ expando ] ?
+ markFunction(function( seed, matches, context, xml ) {
+ var elem,
+ unmatched = matcher( seed, null, xml, [] ),
+ i = seed.length;
+
+ // Match elements unmatched by `matcher`
+ while ( i-- ) {
+ if ( (elem = unmatched[i]) ) {
+ seed[i] = !(matches[i] = elem);
+ }
+ }
+ }) :
+ function( elem, context, xml ) {
+ input[0] = elem;
+ matcher( input, null, xml, results );
+ // Don't keep the element (issue #299)
+ input[0] = null;
+ return !results.pop();
+ };
+ }),
+
+ "has": markFunction(function( selector ) {
+ return function( elem ) {
+ return Sizzle( selector, elem ).length > 0;
+ };
+ }),
+
+ "contains": markFunction(function( text ) {
+ text = text.replace( runescape, funescape );
+ return function( elem ) {
+ return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+ };
+ }),
+
+ // "Whether an element is represented by a :lang() selector
+ // is based solely on the element's language value
+ // being equal to the identifier C,
+ // or beginning with the identifier C immediately followed by "-".
+ // The matching of C against the element's language value is performed case-insensitively.
+ // The identifier C does not have to be a valid language name."
+ // http://www.w3.org/TR/selectors/#lang-pseudo
+ "lang": markFunction( function( lang ) {
+ // lang value must be a valid identifier
+ if ( !ridentifier.test(lang || "") ) {
+ Sizzle.error( "unsupported lang: " + lang );
+ }
+ lang = lang.replace( runescape, funescape ).toLowerCase();
+ return function( elem ) {
+ var elemLang;
+ do {
+ if ( (elemLang = documentIsHTML ?
+ elem.lang :
+ elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
+
+ elemLang = elemLang.toLowerCase();
+ return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+ }
+ } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+ return false;
+ };
+ }),
+
+ // Miscellaneous
+ "target": function( elem ) {
+ var hash = window.location && window.location.hash;
+ return hash && hash.slice( 1 ) === elem.id;
+ },
+
+ "root": function( elem ) {
+ return elem === docElem;
+ },
+
+ "focus": function( elem ) {
+ return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+ },
+
+ // Boolean properties
+ "enabled": createDisabledPseudo( false ),
+ "disabled": createDisabledPseudo( true ),
+
+ "checked": function( elem ) {
+ // In CSS3, :checked should return both checked and selected elements
+ // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+ var nodeName = elem.nodeName.toLowerCase();
+ return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+ },
+
+ "selected": function( elem ) {
+ // Accessing this property makes selected-by-default
+ // options in Safari work properly
+ if ( elem.parentNode ) {
+ elem.parentNode.selectedIndex;
+ }
+
+ return elem.selected === true;
+ },
+
+ // Contents
+ "empty": function( elem ) {
+ // http://www.w3.org/TR/selectors/#empty-pseudo
+ // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
+ // but not by others (comment: 8; processing instruction: 7; etc.)
+ // nodeType < 6 works because attributes (2) do not appear as children
+ for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+ if ( elem.nodeType < 6 ) {
+ return false;
+ }
+ }
+ return true;
+ },
+
+ "parent": function( elem ) {
+ return !Expr.pseudos["empty"]( elem );
+ },
+
+ // Element/input types
+ "header": function( elem ) {
+ return rheader.test( elem.nodeName );
+ },
+
+ "input": function( elem ) {
+ return rinputs.test( elem.nodeName );
+ },
+
+ "button": function( elem ) {
+ var name = elem.nodeName.toLowerCase();
+ return name === "input" && elem.type === "button" || name === "button";
+ },
+
+ "text": function( elem ) {
+ var attr;
+ return elem.nodeName.toLowerCase() === "input" &&
+ elem.type === "text" &&
+
+ // Support: IE<8
+ // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
+ ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
+ },
+
+ // Position-in-collection
+ "first": createPositionalPseudo(function() {
+ return [ 0 ];
+ }),
+
+ "last": createPositionalPseudo(function( matchIndexes, length ) {
+ return [ length - 1 ];
+ }),
+
+ "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ return [ argument < 0 ? argument + length : argument ];
+ }),
+
+ "even": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 0;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "odd": createPositionalPseudo(function( matchIndexes, length ) {
+ var i = 1;
+ for ( ; i < length; i += 2 ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; --i >= 0; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ }),
+
+ "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+ var i = argument < 0 ? argument + length : argument;
+ for ( ; ++i < length; ) {
+ matchIndexes.push( i );
+ }
+ return matchIndexes;
+ })
+ }
+};
+
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+ Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+ Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+// Easy API for creating new setFilters
+function setFilters() {}
+setFilters.prototype = Expr.filters = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
+ var matched, match, tokens, type,
+ soFar, groups, preFilters,
+ cached = tokenCache[ selector + " " ];
+
+ if ( cached ) {
+ return parseOnly ? 0 : cached.slice( 0 );
+ }
+
+ soFar = selector;
+ groups = [];
+ preFilters = Expr.preFilter;
+
+ while ( soFar ) {
+
+ // Comma and first run
+ if ( !matched || (match = rcomma.exec( soFar )) ) {
+ if ( match ) {
+ // Don't consume trailing commas as valid
+ soFar = soFar.slice( match[0].length ) || soFar;
+ }
+ groups.push( (tokens = []) );
+ }
+
+ matched = false;
+
+ // Combinators
+ if ( (match = rcombinators.exec( soFar )) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ // Cast descendant combinators to space
+ type: match[0].replace( rtrim, " " )
+ });
+ soFar = soFar.slice( matched.length );
+ }
+
+ // Filters
+ for ( type in Expr.filter ) {
+ if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+ (match = preFilters[ type ]( match ))) ) {
+ matched = match.shift();
+ tokens.push({
+ value: matched,
+ type: type,
+ matches: match
+ });
+ soFar = soFar.slice( matched.length );
+ }
+ }
+
+ if ( !matched ) {
+ break;
+ }
+ }
+
+ // Return the length of the invalid excess
+ // if we're just parsing
+ // Otherwise, throw an error or return tokens
+ return parseOnly ?
+ soFar.length :
+ soFar ?
+ Sizzle.error( selector ) :
+ // Cache the tokens
+ tokenCache( selector, groups ).slice( 0 );
+};
+
+function toSelector( tokens ) {
+ var i = 0,
+ len = tokens.length,
+ selector = "";
+ for ( ; i < len; i++ ) {
+ selector += tokens[i].value;
+ }
+ return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+ var dir = combinator.dir,
+ skip = combinator.next,
+ key = skip || dir,
+ checkNonElements = base && key === "parentNode",
+ doneName = done++;
+
+ return combinator.first ?
+ // Check against closest ancestor/preceding element
+ function( elem, context, xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ return matcher( elem, context, xml );
+ }
+ }
+ return false;
+ } :
+
+ // Check against all ancestor/preceding elements
+ function( elem, context, xml ) {
+ var oldCache, uniqueCache, outerCache,
+ newCache = [ dirruns, doneName ];
+
+ // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
+ if ( xml ) {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ if ( matcher( elem, context, xml ) ) {
+ return true;
+ }
+ }
+ }
+ } else {
+ while ( (elem = elem[ dir ]) ) {
+ if ( elem.nodeType === 1 || checkNonElements ) {
+ outerCache = elem[ expando ] || (elem[ expando ] = {});
+
+ // Support: IE <9 only
+ // Defend against cloned attroperties (jQuery gh-1709)
+ uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
+
+ if ( skip && skip === elem.nodeName.toLowerCase() ) {
+ elem = elem[ dir ] || elem;
+ } else if ( (oldCache = uniqueCache[ key ]) &&
+ oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
+
+ // Assign to newCache so results back-propagate to previous elements
+ return (newCache[ 2 ] = oldCache[ 2 ]);
+ } else {
+ // Reuse newcache so results back-propagate to previous elements
+ uniqueCache[ key ] = newCache;
+
+ // A match means we're done; a fail means we have to keep checking
+ if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
+ return true;
+ }
+ }
+ }
+ }
+ }
+ return false;
+ };
+}
+
+function elementMatcher( matchers ) {
+ return matchers.length > 1 ?
+ function( elem, context, xml ) {
+ var i = matchers.length;
+ while ( i-- ) {
+ if ( !matchers[i]( elem, context, xml ) ) {
+ return false;
+ }
+ }
+ return true;
+ } :
+ matchers[0];
+}
+
+function multipleContexts( selector, contexts, results ) {
+ var i = 0,
+ len = contexts.length;
+ for ( ; i < len; i++ ) {
+ Sizzle( selector, contexts[i], results );
+ }
+ return results;
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+ var elem,
+ newUnmatched = [],
+ i = 0,
+ len = unmatched.length,
+ mapped = map != null;
+
+ for ( ; i < len; i++ ) {
+ if ( (elem = unmatched[i]) ) {
+ if ( !filter || filter( elem, context, xml ) ) {
+ newUnmatched.push( elem );
+ if ( mapped ) {
+ map.push( i );
+ }
+ }
+ }
+ }
+
+ return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+ if ( postFilter && !postFilter[ expando ] ) {
+ postFilter = setMatcher( postFilter );
+ }
+ if ( postFinder && !postFinder[ expando ] ) {
+ postFinder = setMatcher( postFinder, postSelector );
+ }
+ return markFunction(function( seed, results, context, xml ) {
+ var temp, i, elem,
+ preMap = [],
+ postMap = [],
+ preexisting = results.length,
+
+ // Get initial elements from seed or context
+ elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+ // Prefilter to get matcher input, preserving a map for seed-results synchronization
+ matcherIn = preFilter && ( seed || !selector ) ?
+ condense( elems, preMap, preFilter, context, xml ) :
+ elems,
+
+ matcherOut = matcher ?
+ // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+ postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+ // ...intermediate processing is necessary
+ [] :
+
+ // ...otherwise use results directly
+ results :
+ matcherIn;
+
+ // Find primary matches
+ if ( matcher ) {
+ matcher( matcherIn, matcherOut, context, xml );
+ }
+
+ // Apply postFilter
+ if ( postFilter ) {
+ temp = condense( matcherOut, postMap );
+ postFilter( temp, [], context, xml );
+
+ // Un-match failing elements by moving them back to matcherIn
+ i = temp.length;
+ while ( i-- ) {
+ if ( (elem = temp[i]) ) {
+ matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+ }
+ }
+ }
+
+ if ( seed ) {
+ if ( postFinder || preFilter ) {
+ if ( postFinder ) {
+ // Get the final matcherOut by condensing this intermediate into postFinder contexts
+ temp = [];
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) ) {
+ // Restore matcherIn since elem is not yet a final match
+ temp.push( (matcherIn[i] = elem) );
+ }
+ }
+ postFinder( null, (matcherOut = []), temp, xml );
+ }
+
+ // Move matched elements from seed to results to keep them synchronized
+ i = matcherOut.length;
+ while ( i-- ) {
+ if ( (elem = matcherOut[i]) &&
+ (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
+
+ seed[temp] = !(results[temp] = elem);
+ }
+ }
+ }
+
+ // Add elements to results, through postFinder if defined
+ } else {
+ matcherOut = condense(
+ matcherOut === results ?
+ matcherOut.splice( preexisting, matcherOut.length ) :
+ matcherOut
+ );
+ if ( postFinder ) {
+ postFinder( null, results, matcherOut, xml );
+ } else {
+ push.apply( results, matcherOut );
+ }
+ }
+ });
+}
+
+function matcherFromTokens( tokens ) {
+ var checkContext, matcher, j,
+ len = tokens.length,
+ leadingRelative = Expr.relative[ tokens[0].type ],
+ implicitRelative = leadingRelative || Expr.relative[" "],
+ i = leadingRelative ? 1 : 0,
+
+ // The foundational matcher ensures that elements are reachable from top-level context(s)
+ matchContext = addCombinator( function( elem ) {
+ return elem === checkContext;
+ }, implicitRelative, true ),
+ matchAnyContext = addCombinator( function( elem ) {
+ return indexOf( checkContext, elem ) > -1;
+ }, implicitRelative, true ),
+ matchers = [ function( elem, context, xml ) {
+ var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+ (checkContext = context).nodeType ?
+ matchContext( elem, context, xml ) :
+ matchAnyContext( elem, context, xml ) );
+ // Avoid hanging onto element (issue #299)
+ checkContext = null;
+ return ret;
+ } ];
+
+ for ( ; i < len; i++ ) {
+ if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+ matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+ } else {
+ matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+ // Return special upon seeing a positional matcher
+ if ( matcher[ expando ] ) {
+ // Find the next relative operator (if any) for proper handling
+ j = ++i;
+ for ( ; j < len; j++ ) {
+ if ( Expr.relative[ tokens[j].type ] ) {
+ break;
+ }
+ }
+ return setMatcher(
+ i > 1 && elementMatcher( matchers ),
+ i > 1 && toSelector(
+ // If the preceding token was a descendant combinator, insert an implicit any-element `*`
+ tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
+ ).replace( rtrim, "$1" ),
+ matcher,
+ i < j && matcherFromTokens( tokens.slice( i, j ) ),
+ j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+ j < len && toSelector( tokens )
+ );
+ }
+ matchers.push( matcher );
+ }
+ }
+
+ return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+ var bySet = setMatchers.length > 0,
+ byElement = elementMatchers.length > 0,
+ superMatcher = function( seed, context, xml, results, outermost ) {
+ var elem, j, matcher,
+ matchedCount = 0,
+ i = "0",
+ unmatched = seed && [],
+ setMatched = [],
+ contextBackup = outermostContext,
+ // We must always have either seed elements or outermost context
+ elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
+ // Use integer dirruns iff this is the outermost matcher
+ dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
+ len = elems.length;
+
+ if ( outermost ) {
+ outermostContext = context === document || context || outermost;
+ }
+
+ // Add elements passing elementMatchers directly to results
+ // Support: IE<9, Safari
+ // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
+ for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
+ if ( byElement && elem ) {
+ j = 0;
+ if ( !context && elem.ownerDocument !== document ) {
+ setDocument( elem );
+ xml = !documentIsHTML;
+ }
+ while ( (matcher = elementMatchers[j++]) ) {
+ if ( matcher( elem, context || document, xml) ) {
+ results.push( elem );
+ break;
+ }
+ }
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ }
+ }
+
+ // Track unmatched elements for set filters
+ if ( bySet ) {
+ // They will have gone through all possible matchers
+ if ( (elem = !matcher && elem) ) {
+ matchedCount--;
+ }
+
+ // Lengthen the array for every element, matched or not
+ if ( seed ) {
+ unmatched.push( elem );
+ }
+ }
+ }
+
+ // `i` is now the count of elements visited above, and adding it to `matchedCount`
+ // makes the latter nonnegative.
+ matchedCount += i;
+
+ // Apply set filters to unmatched elements
+ // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
+ // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
+ // no element matchers and no seed.
+ // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
+ // case, which will result in a "00" `matchedCount` that differs from `i` but is also
+ // numerically zero.
+ if ( bySet && i !== matchedCount ) {
+ j = 0;
+ while ( (matcher = setMatchers[j++]) ) {
+ matcher( unmatched, setMatched, context, xml );
+ }
+
+ if ( seed ) {
+ // Reintegrate element matches to eliminate the need for sorting
+ if ( matchedCount > 0 ) {
+ while ( i-- ) {
+ if ( !(unmatched[i] || setMatched[i]) ) {
+ setMatched[i] = pop.call( results );
+ }
+ }
+ }
+
+ // Discard index placeholder values to get only actual matches
+ setMatched = condense( setMatched );
+ }
+
+ // Add matches to results
+ push.apply( results, setMatched );
+
+ // Seedless set matches succeeding multiple successful matchers stipulate sorting
+ if ( outermost && !seed && setMatched.length > 0 &&
+ ( matchedCount + setMatchers.length ) > 1 ) {
+
+ Sizzle.uniqueSort( results );
+ }
+ }
+
+ // Override manipulation of globals by nested matchers
+ if ( outermost ) {
+ dirruns = dirrunsUnique;
+ outermostContext = contextBackup;
+ }
+
+ return unmatched;
+ };
+
+ return bySet ?
+ markFunction( superMatcher ) :
+ superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
+ var i,
+ setMatchers = [],
+ elementMatchers = [],
+ cached = compilerCache[ selector + " " ];
+
+ if ( !cached ) {
+ // Generate a function of recursive functions that can be used to check each element
+ if ( !match ) {
+ match = tokenize( selector );
+ }
+ i = match.length;
+ while ( i-- ) {
+ cached = matcherFromTokens( match[i] );
+ if ( cached[ expando ] ) {
+ setMatchers.push( cached );
+ } else {
+ elementMatchers.push( cached );
+ }
+ }
+
+ // Cache the compiled function
+ cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+
+ // Save selector and tokenization
+ cached.selector = selector;
+ }
+ return cached;
+};
+
+/**
+ * A low-level selection function that works with Sizzle's compiled
+ * selector functions
+ * @param {String|Function} selector A selector or a pre-compiled
+ * selector function built with Sizzle.compile
+ * @param {Element} context
+ * @param {Array} [results]
+ * @param {Array} [seed] A set of elements to match against
+ */
+select = Sizzle.select = function( selector, context, results, seed ) {
+ var i, tokens, token, type, find,
+ compiled = typeof selector === "function" && selector,
+ match = !seed && tokenize( (selector = compiled.selector || selector) );
+
+ results = results || [];
+
+ // Try to minimize operations if there is only one selector in the list and no seed
+ // (the latter of which guarantees us context)
+ if ( match.length === 1 ) {
+
+ // Reduce context if the leading compound selector is an ID
+ tokens = match[0] = match[0].slice( 0 );
+ if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+ context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {
+
+ context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
+ if ( !context ) {
+ return results;
+
+ // Precompiled matchers will still verify ancestry, so step up a level
+ } else if ( compiled ) {
+ context = context.parentNode;
+ }
+
+ selector = selector.slice( tokens.shift().value.length );
+ }
+
+ // Fetch a seed set for right-to-left matching
+ i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
+ while ( i-- ) {
+ token = tokens[i];
+
+ // Abort if we hit a combinator
+ if ( Expr.relative[ (type = token.type) ] ) {
+ break;
+ }
+ if ( (find = Expr.find[ type ]) ) {
+ // Search, expanding context for leading sibling combinators
+ if ( (seed = find(
+ token.matches[0].replace( runescape, funescape ),
+ rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
+ )) ) {
+
+ // If seed is empty or no tokens remain, we can return early
+ tokens.splice( i, 1 );
+ selector = seed.length && toSelector( tokens );
+ if ( !selector ) {
+ push.apply( results, seed );
+ return results;
+ }
+
+ break;
+ }
+ }
+ }
+ }
+
+ // Compile and execute a filtering function if one is not provided
+ // Provide `match` to avoid retokenization if we modified the selector above
+ ( compiled || compile( selector, match ) )(
+ seed,
+ context,
+ !documentIsHTML,
+ results,
+ !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
+ );
+ return results;
+};
+
+// One-time assignments
+
+// Sort stability
+support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
+
+// Support: Chrome 14-35+
+// Always assume duplicates if they aren't passed to the comparison function
+support.detectDuplicates = !!hasDuplicate;
+
+// Initialize against the default document
+setDocument();
+
+// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
+// Detached nodes confoundingly follow *each other*
+support.sortDetached = assert(function( el ) {
+ // Should return 1, but returns 4 (following)
+ return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
+});
+
+// Support: IE<8
+// Prevent attribute/property "interpolation"
+// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !assert(function( el ) {
+ el.innerHTML = "<a href='#'></a>";
+ return el.firstChild.getAttribute("href") === "#" ;
+}) ) {
+ addHandle( "type|href|height|width", function( elem, name, isXML ) {
+ if ( !isXML ) {
+ return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
+ }
+ });
+}
+
+// Support: IE<9
+// Use defaultValue in place of getAttribute("value")
+if ( !support.attributes || !assert(function( el ) {
+ el.innerHTML = "<input/>";
+ el.firstChild.setAttribute( "value", "" );
+ return el.firstChild.getAttribute( "value" ) === "";
+}) ) {
+ addHandle( "value", function( elem, name, isXML ) {
+ if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
+ return elem.defaultValue;
+ }
+ });
+}
+
+// Support: IE<9
+// Use getAttributeNode to fetch booleans when getAttribute lies
+if ( !assert(function( el ) {
+ return el.getAttribute("disabled") == null;
+}) ) {
+ addHandle( booleans, function( elem, name, isXML ) {
+ var val;
+ if ( !isXML ) {
+ return elem[ name ] === true ? name.toLowerCase() :
+ (val = elem.getAttributeNode( name )) && val.specified ?
+ val.value :
+ null;
+ }
+ });
+}
+
+return Sizzle;
+
+})( window );
+
+
+
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+
+// Deprecated
+jQuery.expr[ ":" ] = jQuery.expr.pseudos;
+jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+jQuery.escapeSelector = Sizzle.escape;
+
+
+
+
+var dir = function( elem, dir, until ) {
+ var matched = [],
+ truncate = until !== undefined;
+
+ while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
+ if ( elem.nodeType === 1 ) {
+ if ( truncate && jQuery( elem ).is( until ) ) {
+ break;
+ }
+ matched.push( elem );
+ }
+ }
+ return matched;
+};
+
+
+var siblings = function( n, elem ) {
+ var matched = [];
+
+ for ( ; n; n = n.nextSibling ) {
+ if ( n.nodeType === 1 && n !== elem ) {
+ matched.push( n );
+ }
+ }
+
+ return matched;
+};
+
+
+var rneedsContext = jQuery.expr.match.needsContext;
+
+
+
+function nodeName( elem, name ) {
+
+ return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+
+};
+var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
+
+
+
+var risSimple = /^.[^:#\[\.,]*$/;
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, not ) {
+ if ( jQuery.isFunction( qualifier ) ) {
+ return jQuery.grep( elements, function( elem, i ) {
+ return !!qualifier.call( elem, i, elem ) !== not;
+ } );
+ }
+
+ // Single element
+ if ( qualifier.nodeType ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( elem === qualifier ) !== not;
+ } );
+ }
+
+ // Arraylike of elements (jQuery, arguments, Array)
+ if ( typeof qualifier !== "string" ) {
+ return jQuery.grep( elements, function( elem ) {
+ return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
+ } );
+ }
+
+ // Simple selector that can be filtered directly, removing non-Elements
+ if ( risSimple.test( qualifier ) ) {
+ return jQuery.filter( qualifier, elements, not );
+ }
+
+ // Complex selector, compare the two sets, removing non-Elements
+ qualifier = jQuery.filter( qualifier, elements );
+ return jQuery.grep( elements, function( elem ) {
+ return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
+ } );
+}
+
+jQuery.filter = function( expr, elems, not ) {
+ var elem = elems[ 0 ];
+
+ if ( not ) {
+ expr = ":not(" + expr + ")";
+ }
+
+ if ( elems.length === 1 && elem.nodeType === 1 ) {
+ return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
+ }
+
+ return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
+ return elem.nodeType === 1;
+ } ) );
+};
+
+jQuery.fn.extend( {
+ find: function( selector ) {
+ var i, ret,
+ len = this.length,
+ self = this;
+
+ if ( typeof selector !== "string" ) {
+ return this.pushStack( jQuery( selector ).filter( function() {
+ for ( i = 0; i < len; i++ ) {
+ if ( jQuery.contains( self[ i ], this ) ) {
+ return true;
+ }
+ }
+ } ) );
+ }
+
+ ret = this.pushStack( [] );
+
+ for ( i = 0; i < len; i++ ) {
+ jQuery.find( selector, self[ i ], ret );
+ }
+
+ return len > 1 ? jQuery.uniqueSort( ret ) : ret;
+ },
+ filter: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], false ) );
+ },
+ not: function( selector ) {
+ return this.pushStack( winnow( this, selector || [], true ) );
+ },
+ is: function( selector ) {
+ return !!winnow(
+ this,
+
+ // If this is a positional/relative selector, check membership in the returned set
+ // so $("p:first").is("p:last") won't return true for a doc with two "p".
+ typeof selector === "string" && rneedsContext.test( selector ) ?
+ jQuery( selector ) :
+ selector || [],
+ false
+ ).length;
+ }
+} );
+
+
+// Initialize a jQuery object
+
+
+// A central reference to the root jQuery(document)
+var rootjQuery,
+
+ // A simple way to check for HTML strings
+ // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+ // Strict HTML recognition (#11290: must start with <)
+ // Shortcut simple #id case for speed
+ rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
+
+ init = jQuery.fn.init = function( selector, context, root ) {
+ var match, elem;
+
+ // HANDLE: $(""), $(null), $(undefined), $(false)
+ if ( !selector ) {
+ return this;
+ }
+
+ // Method init() accepts an alternate rootjQuery
+ // so migrate can support jQuery.sub (gh-2101)
+ root = root || rootjQuery;
+
+ // Handle HTML strings
+ if ( typeof selector === "string" ) {
+ if ( selector[ 0 ] === "<" &&
+ selector[ selector.length - 1 ] === ">" &&
+ selector.length >= 3 ) {
+
+ // Assume that strings that start and end with <> are HTML and skip the regex check
+ match = [ null, selector, null ];
+
+ } else {
+ match = rquickExpr.exec( selector );
+ }
+
+ // Match html or make sure no context is specified for #id
+ if ( match && ( match[ 1 ] || !context ) ) {
+
+ // HANDLE: $(html) -> $(array)
+ if ( match[ 1 ] ) {
+ context = context instanceof jQuery ? context[ 0 ] : context;
+
+ // Option to run scripts is true for back-compat
+ // Intentionally let the error be thrown if parseHTML is not present
+ jQuery.merge( this, jQuery.parseHTML(
+ match[ 1 ],
+ context && context.nodeType ? context.ownerDocument || context : document,
+ true
+ ) );
+
+ // HANDLE: $(html, props)
+ if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
+ for ( match in context ) {
+
+ // Properties of context are called as methods if possible
+ if ( jQuery.isFunction( this[ match ] ) ) {
+ this[ match ]( context[ match ] );
+
+ // ...and otherwise set as attributes
+ } else {
+ this.attr( match, context[ match ] );
+ }
+ }
+ }
+
+ return this;
+
+ // HANDLE: $(#id)
+ } else {
+ elem = document.getElementById( match[ 2 ] );
+
+ if ( elem ) {
+
+ // Inject the element directly into the jQuery object
+ this[ 0 ] = elem;
+ this.length = 1;
+ }
+ return this;
+ }
+
+ // HANDLE: $(expr, $(...))
+ } else if ( !context || context.jquery ) {
+ return ( context || root ).find( selector );
+
+ // HANDLE: $(expr, context)
+ // (which is just equivalent to: $(context).find(expr)
+ } else {
+ return this.constructor( context ).find( selector );
+ }
+
+ // HANDLE: $(DOMElement)
+ } else if ( selector.nodeType ) {
+ this[ 0 ] = selector;
+ this.length = 1;
+ return this;
+
+ // HANDLE: $(function)
+ // Shortcut for document ready
+ } else if ( jQuery.isFunction( selector ) ) {
+ return root.ready !== undefined ?
+ root.ready( selector ) :
+
+ // Execute immediately if ready is not present
+ selector( jQuery );
+ }
+
+ return jQuery.makeArray( selector, this );
+ };
+
+// Give the init function the jQuery prototype for later instantiation
+init.prototype = jQuery.fn;
+
+// Initialize central reference
+rootjQuery = jQuery( document );
+
+
+var rparentsprev = /^(?:parents|prev(?:Until|All))/,
+
+ // Methods guaranteed to produce a unique set when starting from a unique set
+ guaranteedUnique = {
+ children: true,
+ contents: true,
+ next: true,
+ prev: true
+ };
+
+jQuery.fn.extend( {
+ has: function( target ) {
+ var targets = jQuery( target, this ),
+ l = targets.length;
+
+ return this.filter( function() {
+ var i = 0;
+ for ( ; i < l; i++ ) {
+ if ( jQuery.contains( this, targets[ i ] ) ) {
+ return true;
+ }
+ }
+ } );
+ },
+
+ closest: function( selectors, context ) {
+ var cur,
+ i = 0,
+ l = this.length,
+ matched = [],
+ targets = typeof selectors !== "string" && jQuery( selectors );
+
+ // Positional selectors never match, since there's no _selection_ context
+ if ( !rneedsContext.test( selectors ) ) {
+ for ( ; i < l; i++ ) {
+ for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
+
+ // Always skip document fragments
+ if ( cur.nodeType < 11 && ( targets ?
+ targets.index( cur ) > -1 :
+
+ // Don't pass non-elements to Sizzle
+ cur.nodeType === 1 &&
+ jQuery.find.matchesSelector( cur, selectors ) ) ) {
+
+ matched.push( cur );
+ break;
+ }
+ }
+ }
+ }
+
+ return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
+ },
+
+ // Determine the position of an element within the set
+ index: function( elem ) {
+
+ // No argument, return index in parent
+ if ( !elem ) {
+ return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
+ }
+
+ // Index in selector
+ if ( typeof elem === "string" ) {
+ return indexOf.call( jQuery( elem ), this[ 0 ] );
+ }
+
+ // Locate the position of the desired element
+ return indexOf.call( this,
+
+ // If it receives a jQuery object, the first element is used
+ elem.jquery ? elem[ 0 ] : elem
+ );
+ },
+
+ add: function( selector, context ) {
+ return this.pushStack(
+ jQuery.uniqueSort(
+ jQuery.merge( this.get(), jQuery( selector, context ) )
+ )
+ );
+ },
+
+ addBack: function( selector ) {
+ return this.add( selector == null ?
+ this.prevObject : this.prevObject.filter( selector )
+ );
+ }
+} );
+
+function sibling( cur, dir ) {
+ while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
+ return cur;
+}
+
+jQuery.each( {
+ parent: function( elem ) {
+ var parent = elem.parentNode;
+ return parent && parent.nodeType !== 11 ? parent : null;
+ },
+ parents: function( elem ) {
+ return dir( elem, "parentNode" );
+ },
+ parentsUntil: function( elem, i, until ) {
+ return dir( elem, "parentNode", until );
+ },
+ next: function( elem ) {
+ return sibling( elem, "nextSibling" );
+ },
+ prev: function( elem ) {
+ return sibling( elem, "previousSibling" );
+ },
+ nextAll: function( elem ) {
+ return dir( elem, "nextSibling" );
+ },
+ prevAll: function( elem ) {
+ return dir( elem, "previousSibling" );
+ },
+ nextUntil: function( elem, i, until ) {
+ return dir( elem, "nextSibling", until );
+ },
+ prevUntil: function( elem, i, until ) {
+ return dir( elem, "previousSibling", until );
+ },
+ siblings: function( elem ) {
+ return siblings( ( elem.parentNode || {} ).firstChild, elem );
+ },
+ children: function( elem ) {
+ return siblings( elem.firstChild );
+ },
+ contents: function( elem ) {
+ if ( nodeName( elem, "iframe" ) ) {
+ return elem.contentDocument;
+ }
+
+ // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
+ // Treat the template element as a regular one in browsers that
+ // don't support it.
+ if ( nodeName( elem, "template" ) ) {
+ elem = elem.content || elem;
+ }
+
+ return jQuery.merge( [], elem.childNodes );
+ }
+}, function( name, fn ) {
+ jQuery.fn[ name ] = function( until, selector ) {
+ var matched = jQuery.map( this, fn, until );
+
+ if ( name.slice( -5 ) !== "Until" ) {
+ selector = until;
+ }
+
+ if ( selector && typeof selector === "string" ) {
+ matched = jQuery.filter( selector, matched );
+ }
+
+ if ( this.length > 1 ) {
+
+ // Remove duplicates
+ if ( !guaranteedUnique[ name ] ) {
+ jQuery.uniqueSort( matched );
+ }
+
+ // Reverse order for parents* and prev-derivatives
+ if ( rparentsprev.test( name ) ) {
+ matched.reverse();
+ }
+ }
+
+ return this.pushStack( matched );
+ };
+} );
+var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );
+
+
+
+// Convert String-formatted options into Object-formatted ones
+function createOptions( options ) {
+ var object = {};
+ jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
+ object[ flag ] = true;
+ } );
+ return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ * options: an optional list of space-separated options that will change how
+ * the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ * once: will ensure the callback list can only be fired once (like a Deferred)
+ *
+ * memory: will keep track of previous values and will call any callback added
+ * after the list has been fired right away with the latest "memorized"
+ * values (like a Deferred)
+ *
+ * unique: will ensure a callback can only be added once (no duplicate in the list)
+ *
+ * stopOnFalse: interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+ // Convert options from String-formatted to Object-formatted if needed
+ // (we check in cache first)
+ options = typeof options === "string" ?
+ createOptions( options ) :
+ jQuery.extend( {}, options );
+
+ var // Flag to know if list is currently firing
+ firing,
+
+ // Last fire value for non-forgettable lists
+ memory,
+
+ // Flag to know if list was already fired
+ fired,
+
+ // Flag to prevent firing
+ locked,
+
+ // Actual callback list
+ list = [],
+
+ // Queue of execution data for repeatable lists
+ queue = [],
+
+ // Index of currently firing callback (modified by add/remove as needed)
+ firingIndex = -1,
+
+ // Fire callbacks
+ fire = function() {
+
+ // Enforce single-firing
+ locked = locked || options.once;
+
+ // Execute callbacks for all pending executions,
+ // respecting firingIndex overrides and runtime changes
+ fired = firing = true;
+ for ( ; queue.length; firingIndex = -1 ) {
+ memory = queue.shift();
+ while ( ++firingIndex < list.length ) {
+
+ // Run callback and check for early termination
+ if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
+ options.stopOnFalse ) {
+
+ // Jump to end and forget the data so .add doesn't re-fire
+ firingIndex = list.length;
+ memory = false;
+ }
+ }
+ }
+
+ // Forget the data if we're done with it
+ if ( !options.memory ) {
+ memory = false;
+ }
+
+ firing = false;
+
+ // Clean up if we're done firing for good
+ if ( locked ) {
+
+ // Keep an empty list if we have data for future add calls
+ if ( memory ) {
+ list = [];
+
+ // Otherwise, this object is spent
+ } else {
+ list = "";
+ }
+ }
+ },
+
+ // Actual Callbacks object
+ self = {
+
+ // Add a callback or a collection of callbacks to the list
+ add: function() {
+ if ( list ) {
+
+ // If we have memory from a past run, we should fire after adding
+ if ( memory && !firing ) {
+ firingIndex = list.length - 1;
+ queue.push( memory );
+ }
+
+ ( function add( args ) {
+ jQuery.each( args, function( _, arg ) {
+ if ( jQuery.isFunction( arg ) ) {
+ if ( !options.unique || !self.has( arg ) ) {
+ list.push( arg );
+ }
+ } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {
+
+ // Inspect recursively
+ add( arg );
+ }
+ } );
+ } )( arguments );
+
+ if ( memory && !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Remove a callback from the list
+ remove: function() {
+ jQuery.each( arguments, function( _, arg ) {
+ var index;
+ while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+ list.splice( index, 1 );
+
+ // Handle firing indexes
+ if ( index <= firingIndex ) {
+ firingIndex--;
+ }
+ }
+ } );
+ return this;
+ },
+
+ // Check if a given callback is in the list.
+ // If no argument is given, return whether or not list has callbacks attached.
+ has: function( fn ) {
+ return fn ?
+ jQuery.inArray( fn, list ) > -1 :
+ list.length > 0;
+ },
+
+ // Remove all callbacks from the list
+ empty: function() {
+ if ( list ) {
+ list = [];
+ }
+ return this;
+ },
+
+ // Disable .fire and .add
+ // Abort any current/pending executions
+ // Clear all callbacks and values
+ disable: function() {
+ locked = queue = [];
+ list = memory = "";
+ return this;
+ },
+ disabled: function() {
+ return !list;
+ },
+
+ // Disable .fire
+ // Also disable .add unless we have memory (since it would have no effect)
+ // Abort any pending executions
+ lock: function() {
+ locked = queue = [];
+ if ( !memory && !firing ) {
+ list = memory = "";
+ }
+ return this;
+ },
+ locked: function() {
+ return !!locked;
+ },
+
+ // Call all callbacks with the given context and arguments
+ fireWith: function( context, args ) {
+ if ( !locked ) {
+ args = args || [];
+ args = [ context, args.slice ? args.slice() : args ];
+ queue.push( args );
+ if ( !firing ) {
+ fire();
+ }
+ }
+ return this;
+ },
+
+ // Call all the callbacks with the given arguments
+ fire: function() {
+ self.fireWith( this, arguments );
+ return this;
+ },
+
+ // To know if the callbacks have already been called at least once
+ fired: function() {
+ return !!fired;
+ }
+ };
+
+ return self;
+};
+
+
+function Identity( v ) {
+ return v;
+}
+function Thrower( ex ) {
+ throw ex;
+}
+
+function adoptValue( value, resolve, reject, noValue ) {
+ var method;
+
+ try {
+
+ // Check for promise aspect first to privilege synchronous behavior
+ if ( value && jQuery.isFunction( ( method = value.promise ) ) ) {
+ method.call( value ).done( resolve ).fail( reject );
+
+ // Other thenables
+ } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {
+ method.call( value, resolve, reject );
+
+ // Other non-thenables
+ } else {
+
+ // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
+ // * false: [ value ].slice( 0 ) => resolve( value )
+ // * true: [ value ].slice( 1 ) => resolve()
+ resolve.apply( undefined, [ value ].slice( noValue ) );
+ }
+
+ // For Promises/A+, convert exceptions into rejections
+ // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
+ // Deferred#then to conditionally suppress rejection.
+ } catch ( value ) {
+
+ // Support: Android 4.0 only
+ // Strict mode functions invoked without .call/.apply get global-object context
+ reject.apply( undefined, [ value ] );
+ }
+}
+
+jQuery.extend( {
+
+ Deferred: function( func ) {
+ var tuples = [
+
+ // action, add listener, callbacks,
+ // ... .then handlers, argument index, [final state]
+ [ "notify", "progress", jQuery.Callbacks( "memory" ),
+ jQuery.Callbacks( "memory" ), 2 ],
+ [ "resolve", "done", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 0, "resolved" ],
+ [ "reject", "fail", jQuery.Callbacks( "once memory" ),
+ jQuery.Callbacks( "once memory" ), 1, "rejected" ]
+ ],
+ state = "pending",
+ promise = {
+ state: function() {
+ return state;
+ },
+ always: function() {
+ deferred.done( arguments ).fail( arguments );
+ return this;
+ },
+ "catch": function( fn ) {
+ return promise.then( null, fn );
+ },
+
+ // Keep pipe for back-compat
+ pipe: function( /* fnDone, fnFail, fnProgress */ ) {
+ var fns = arguments;
+
+ return jQuery.Deferred( function( newDefer ) {
+ jQuery.each( tuples, function( i, tuple ) {
+
+ // Map tuples (progress, done, fail) to arguments (done, fail, progress)
+ var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
+
+ // deferred.progress(function() { bind to newDefer or newDefer.notify })
+ // deferred.done(function() { bind to newDefer or newDefer.resolve })
+ // deferred.fail(function() { bind to newDefer or newDefer.reject })
+ deferred[ tuple[ 1 ] ]( function() {
+ var returned = fn && fn.apply( this, arguments );
+ if ( returned && jQuery.isFunction( returned.promise ) ) {
+ returned.promise()
+ .progress( newDefer.notify )
+ .done( newDefer.resolve )
+ .fail( newDefer.reject );
+ } else {
+ newDefer[ tuple[ 0 ] + "With" ](
+ this,
+ fn ? [ returned ] : arguments
+ );
+ }
+ } );
+ } );
+ fns = null;
+ } ).promise();
+ },
+ then: function( onFulfilled, onRejected, onProgress ) {
+ var maxDepth = 0;
+ function resolve( depth, deferred, handler, special ) {
+ return function() {
+ var that = this,
+ args = arguments,
+ mightThrow = function() {
+ var returned, then;
+
+ // Support: Promises/A+ section 2.3.3.3.3
+ // https://promisesaplus.com/#point-59
+ // Ignore double-resolution attempts
+ if ( depth < maxDepth ) {
+ return;
+ }
+
+ returned = handler.apply( that, args );
+
+ // Support: Promises/A+ section 2.3.1
+ // https://promisesaplus.com/#point-48
+ if ( returned === deferred.promise() ) {
+ throw new TypeError( "Thenable self-resolution" );
+ }
+
+ // Support: Promises/A+ sections 2.3.3.1, 3.5
+ // https://promisesaplus.com/#point-54
+ // https://promisesaplus.com/#point-75
+ // Retrieve `then` only once
+ then = returned &&
+
+ // Support: Promises/A+ section 2.3.4
+ // https://promisesaplus.com/#point-64
+ // Only check objects and functions for thenability
+ ( typeof returned === "object" ||
+ typeof returned === "function" ) &&
+ returned.then;
+
+ // Handle a returned thenable
+ if ( jQuery.isFunction( then ) ) {
+
+ // Special processors (notify) just wait for resolution
+ if ( special ) {
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special )
+ );
+
+ // Normal processors (resolve) also hook into progress
+ } else {
+
+ // ...and disregard older resolution values
+ maxDepth++;
+
+ then.call(
+ returned,
+ resolve( maxDepth, deferred, Identity, special ),
+ resolve( maxDepth, deferred, Thrower, special ),
+ resolve( maxDepth, deferred, Identity,
+ deferred.notifyWith )
+ );
+ }
+
+ // Handle all other returned values
+ } else {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Identity ) {
+ that = undefined;
+ args = [ returned ];
+ }
+
+ // Process the value(s)
+ // Default process is resolve
+ ( special || deferred.resolveWith )( that, args );
+ }
+ },
+
+ // Only normal processors (resolve) catch and reject exceptions
+ process = special ?
+ mightThrow :
+ function() {
+ try {
+ mightThrow();
+ } catch ( e ) {
+
+ if ( jQuery.Deferred.exceptionHook ) {
+ jQuery.Deferred.exceptionHook( e,
+ process.stackTrace );
+ }
+
+ // Support: Promises/A+ section 2.3.3.3.4.1
+ // https://promisesaplus.com/#point-61
+ // Ignore post-resolution exceptions
+ if ( depth + 1 >= maxDepth ) {
+
+ // Only substitute handlers pass on context
+ // and multiple values (non-spec behavior)
+ if ( handler !== Thrower ) {
+ that = undefined;
+ args = [ e ];
+ }
+
+ deferred.rejectWith( that, args );
+ }
+ }
+ };
+
+ // Support: Promises/A+ section 2.3.3.3.1
+ // https://promisesaplus.com/#point-57
+ // Re-resolve promises immediately to dodge false rejection from
+ // subsequent errors
+ if ( depth ) {
+ process();
+ } else {
+
+ // Call an optional hook to record the stack, in case of exception
+ // since it's otherwise lost when execution goes async
+ if ( jQuery.Deferred.getStackHook ) {
+ process.stackTrace = jQuery.Deferred.getStackHook();
+ }
+ window.setTimeout( process );
+ }
+ };
+ }
+
+ return jQuery.Deferred( function( newDefer ) {
+
+ // progress_handlers.add( ... )
+ tuples[ 0 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ jQuery.isFunction( onProgress ) ?
+ onProgress :
+ Identity,
+ newDefer.notifyWith
+ )
+ );
+
+ // fulfilled_handlers.add( ... )
+ tuples[ 1 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ jQuery.isFunction( onFulfilled ) ?
+ onFulfilled :
+ Identity
+ )
+ );
+
+ // rejected_handlers.add( ... )
+ tuples[ 2 ][ 3 ].add(
+ resolve(
+ 0,
+ newDefer,
+ jQuery.isFunction( onRejected ) ?
+ onRejected :
+ Thrower
+ )
+ );
+ } ).promise();
+ },
+
+ // Get a promise for this deferred
+ // If obj is provided, the promise aspect is added to the object
+ promise: function( obj ) {
+ return obj != null ? jQuery.extend( obj, promise ) : promise;
+ }
+ },
+ deferred = {};
+
+ // Add list-specific methods
+ jQuery.each( tuples, function( i, tuple ) {
+ var list = tuple[ 2 ],
+ stateString = tuple[ 5 ];
+
+ // promise.progress = list.add
+ // promise.done = list.add
+ // promise.fail = list.add
+ promise[ tuple[ 1 ] ] = list.add;
+
+ // Handle state
+ if ( stateString ) {
+ list.add(
+ function() {
+
+ // state = "resolved" (i.e., fulfilled)
+ // state = "rejected"
+ state = stateString;
+ },
+
+ // rejected_callbacks.disable
+ // fulfilled_callbacks.disable
+ tuples[ 3 - i ][ 2 ].disable,
+
+ // progress_callbacks.lock
+ tuples[ 0 ][ 2 ].lock
+ );
+ }
+
+ // progress_handlers.fire
+ // fulfilled_handlers.fire
+ // rejected_handlers.fire
+ list.add( tuple[ 3 ].fire );
+
+ // deferred.notify = function() { deferred.notifyWith(...) }
+ // deferred.resolve = function() { deferred.resolveWith(...) }
+ // deferred.reject = function() { deferred.rejectWith(...) }
+ deferred[ tuple[ 0 ] ] = function() {
+ deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
+ return this;
+ };
+
+ // deferred.notifyWith = list.fireWith
+ // deferred.resolveWith = list.fireWith
+ // deferred.rejectWith = list.fireWith
+ deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
+ } );
+
+ // Make the deferred a promise
+ promise.promise( deferred );
+
+ // Call given func if any
+ if ( func ) {
+ func.call( deferred, deferred );
+ }
+
+ // All done!
+ return deferred;
+ },
+
+ // Deferred helper
+ when: function( singleValue ) {
+ var
+
+ // count of uncompleted subordinates
+ remaining = arguments.length,
+
+ // count of unprocessed arguments
+ i = remaining,
+
+ // subordinate fulfillment data
+ resolveContexts = Array( i ),
+ resolveValues = slice.call( arguments ),
+
+ // the master Deferred
+ master = jQuery.Deferred(),
+
+ // subordinate callback factory
+ updateFunc = function( i ) {
+ return function( value ) {
+ resolveContexts[ i ] = this;
+ resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
+ if ( !( --remaining ) ) {
+ master.resolveWith( resolveContexts, resolveValues );
+ }
+ };
+ };
+
+ // Single- and empty arguments are adopted like Promise.resolve
+ if ( remaining <= 1 ) {
+ adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
+ !remaining );
+
+ // Use .then() to unwrap secondary thenables (cf. gh-3000)
+ if ( master.state() === "pending" ||
+ jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
+
+ return master.then();
+ }
+ }
+
+ // Multiple arguments are aggregated like Promise.all array elements
+ while ( i-- ) {
+ adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
+ }
+
+ return master.promise();
+ }
+} );
+
+
+// These usually indicate a programmer mistake during development,
+// warn about them ASAP rather than swallowing them by default.
+var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
+
+jQuery.Deferred.exceptionHook = function( error, stack ) {
+
+ // Support: IE 8 - 9 only
+ // Console exists when dev tools are open, which can happen at any time
+ if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
+ window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
+ }
+};
+
+
+
+
+jQuery.readyException = function( error ) {
+ window.setTimeout( function() {
+ throw error;
+ } );
+};
+
+
+
+
+// The deferred used on DOM ready
+var readyList = jQuery.Deferred();
+
+jQuery.fn.ready = function( fn ) {
+
+ readyList
+ .then( fn )
+
+ // Wrap jQuery.readyException in a function so that the lookup
+ // happens at the time of error handling instead of callback
+ // registration.
+ .catch( function( error ) {
+ jQuery.readyException( error );
+ } );
+
+ return this;
+};
+
+jQuery.extend( {
+
+ // Is the DOM ready to be used? Set to true once it occurs.
+ isReady: false,
+
+ // A counter to track how many items to wait for before
+ // the ready event fires. See #6781
+ readyWait: 1,
+
+ // Handle when the DOM is ready
+ ready: function( wait ) {
+
+ // Abort if there are pending holds or we're already ready
+ if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+ return;
+ }
+
+ // Remember that the DOM is ready
+ jQuery.isReady = true;
+
+ // If a normal DOM Ready event fired, decrement, and wait if need be
+ if ( wait !== true && --jQuery.readyWait > 0 ) {
+ return;
+ }
+
+ // If there are functions bound, to execute
+ readyList.resolveWith( document, [ jQuery ] );
+ }
+} );
+
+jQuery.ready.then = readyList.then;
+
+// The ready event handler and self cleanup method
+function completed() {
+ document.removeEventListener( "DOMContentLoaded", completed );
+ window.removeEventListener( "load", completed );
+ jQuery.ready();
+}
+
+// Catch cases where $(document).ready() is called
+// after the browser event has already occurred.
+// Support: IE <=9 - 10 only
+// Older IE sometimes signals "interactive" too soon
+if ( document.readyState === "complete" ||
+ ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
+
+ // Handle it asynchronously to allow scripts the opportunity to delay ready
+ window.setTimeout( jQuery.ready );
+
+} else {
+
+ // Use the handy event callback
+ document.addEventListener( "DOMContentLoaded", completed );
+
+ // A fallback to window.onload, that will always work
+ window.addEventListener( "load", completed );
+}
+
+
+
+
+// Multifunctional method to get and set values of a collection
+// The value/s can optionally be executed if it's a function
+var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
+ var i = 0,
+ len = elems.length,
+ bulk = key == null;
+
+ // Sets many values
+ if ( jQuery.type( key ) === "object" ) {
+ chainable = true;
+ for ( i in key ) {
+ access( elems, fn, i, key[ i ], true, emptyGet, raw );
+ }
+
+ // Sets one value
+ } else if ( value !== undefined ) {
+ chainable = true;
+
+ if ( !jQuery.isFunction( value ) ) {
+ raw = true;
+ }
+
+ if ( bulk ) {
+
+ // Bulk operations run against the entire set
+ if ( raw ) {
+ fn.call( elems, value );
+ fn = null;
+
+ // ...except when executing function values
+ } else {
+ bulk = fn;
+ fn = function( elem, key, value ) {
+ return bulk.call( jQuery( elem ), value );
+ };
+ }
+ }
+
+ if ( fn ) {
+ for ( ; i < len; i++ ) {
+ fn(
+ elems[ i ], key, raw ?
+ value :
+ value.call( elems[ i ], i, fn( elems[ i ], key ) )
+ );
+ }
+ }
+ }
+
+ if ( chainable ) {
+ return elems;
+ }
+
+ // Gets
+ if ( bulk ) {
+ return fn.call( elems );
+ }
+
+ return len ? fn( elems[ 0 ], key ) : emptyGet;
+};
+var acceptData = function( owner ) {
+
+ // Accepts only:
+ // - Node
+ // - Node.ELEMENT_NODE
+ // - Node.DOCUMENT_NODE
+ // - Object
+ // - Any
+ return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
+};
+
+
+
+
+function Data() {
+ this.expando = jQuery.expando + Data.uid++;
+}
+
+Data.uid = 1;
+
+Data.prototype = {
+
+ cache: function( owner ) {
+
+ // Check if the owner object already has a cache
+ var value = owner[ this.expando ];
+
+ // If not, create one
+ if ( !value ) {
+ value = {};
+
+ // We can accept data for non-element nodes in modern browsers,
+ // but we should not, see #8335.
+ // Always return an empty object.
+ if ( acceptData( owner ) ) {
+
+ // If it is a node unlikely to be stringify-ed or looped over
+ // use plain assignment
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = value;
+
+ // Otherwise secure it in a non-enumerable property
+ // configurable must be true to allow the property to be
+ // deleted when data is removed
+ } else {
+ Object.defineProperty( owner, this.expando, {
+ value: value,
+ configurable: true
+ } );
+ }
+ }
+ }
+
+ return value;
+ },
+ set: function( owner, data, value ) {
+ var prop,
+ cache = this.cache( owner );
+
+ // Handle: [ owner, key, value ] args
+ // Always use camelCase key (gh-2257)
+ if ( typeof data === "string" ) {
+ cache[ jQuery.camelCase( data ) ] = value;
+
+ // Handle: [ owner, { properties } ] args
+ } else {
+
+ // Copy the properties one-by-one to the cache object
+ for ( prop in data ) {
+ cache[ jQuery.camelCase( prop ) ] = data[ prop ];
+ }
+ }
+ return cache;
+ },
+ get: function( owner, key ) {
+ return key === undefined ?
+ this.cache( owner ) :
+
+ // Always use camelCase key (gh-2257)
+ owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
+ },
+ access: function( owner, key, value ) {
+
+ // In cases where either:
+ //
+ // 1. No key was specified
+ // 2. A string key was specified, but no value provided
+ //
+ // Take the "read" path and allow the get method to determine
+ // which value to return, respectively either:
+ //
+ // 1. The entire cache object
+ // 2. The data stored at the key
+ //
+ if ( key === undefined ||
+ ( ( key && typeof key === "string" ) && value === undefined ) ) {
+
+ return this.get( owner, key );
+ }
+
+ // When the key is not a string, or both a key and value
+ // are specified, set or extend (existing objects) with either:
+ //
+ // 1. An object of properties
+ // 2. A key and value
+ //
+ this.set( owner, key, value );
+
+ // Since the "set" path can have two possible entry points
+ // return the expected data based on which path was taken[*]
+ return value !== undefined ? value : key;
+ },
+ remove: function( owner, key ) {
+ var i,
+ cache = owner[ this.expando ];
+
+ if ( cache === undefined ) {
+ return;
+ }
+
+ if ( key !== undefined ) {
+
+ // Support array or space separated string of keys
+ if ( Array.isArray( key ) ) {
+
+ // If key is an array of keys...
+ // We always set camelCase keys, so remove that.
+ key = key.map( jQuery.camelCase );
+ } else {
+ key = jQuery.camelCase( key );
+
+ // If a key with the spaces exists, use it.
+ // Otherwise, create an array by matching non-whitespace
+ key = key in cache ?
+ [ key ] :
+ ( key.match( rnothtmlwhite ) || [] );
+ }
+
+ i = key.length;
+
+ while ( i-- ) {
+ delete cache[ key[ i ] ];
+ }
+ }
+
+ // Remove the expando if there's no more data
+ if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
+
+ // Support: Chrome <=35 - 45
+ // Webkit & Blink performance suffers when deleting properties
+ // from DOM nodes, so set to undefined instead
+ // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
+ if ( owner.nodeType ) {
+ owner[ this.expando ] = undefined;
+ } else {
+ delete owner[ this.expando ];
+ }
+ }
+ },
+ hasData: function( owner ) {
+ var cache = owner[ this.expando ];
+ return cache !== undefined && !jQuery.isEmptyObject( cache );
+ }
+};
+var dataPriv = new Data();
+
+var dataUser = new Data();
+
+
+
+// Implementation Summary
+//
+// 1. Enforce API surface and semantic compatibility with 1.9.x branch
+// 2. Improve the module's maintainability by reducing the storage
+// paths to a single mechanism.
+// 3. Use the same single mechanism to support "private" and "user" data.
+// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
+// 5. Avoid exposing implementation details on user objects (eg. expando properties)
+// 6. Provide a clear path for implementation upgrade to WeakMap in 2014
+
+var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
+ rmultiDash = /[A-Z]/g;
+
+function getData( data ) {
+ if ( data === "true" ) {
+ return true;
+ }
+
+ if ( data === "false" ) {
+ return false;
+ }
+
+ if ( data === "null" ) {
+ return null;
+ }
+
+ // Only convert to a number if it doesn't change the string
+ if ( data === +data + "" ) {
+ return +data;
+ }
+
+ if ( rbrace.test( data ) ) {
+ return JSON.parse( data );
+ }
+
+ return data;
+}
+
+function dataAttr( elem, key, data ) {
+ var name;
+
+ // If nothing was found internally, try to fetch any
+ // data from the HTML5 data-* attribute
+ if ( data === undefined && elem.nodeType === 1 ) {
+ name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
+ data = elem.getAttribute( name );
+
+ if ( typeof data === "string" ) {
+ try {
+ data = getData( data );
+ } catch ( e ) {}
+
+ // Make sure we set the data so it isn't changed later
+ dataUser.set( elem, key, data );
+ } else {
+ data = undefined;
+ }
+ }
+ return data;
+}
+
+jQuery.extend( {
+ hasData: function( elem ) {
+ return dataUser.hasData( elem ) || dataPriv.hasData( elem );
+ },
+
+ data: function( elem, name, data ) {
+ return dataUser.access( elem, name, data );
+ },
+
+ removeData: function( elem, name ) {
+ dataUser.remove( elem, name );
+ },
+
+ // TODO: Now that all calls to _data and _removeData have been replaced
+ // with direct calls to dataPriv methods, these can be deprecated.
+ _data: function( elem, name, data ) {
+ return dataPriv.access( elem, name, data );
+ },
+
+ _removeData: function( elem, name ) {
+ dataPriv.remove( elem, name );
+ }
+} );
+
+jQuery.fn.extend( {
+ data: function( key, value ) {
+ var i, name, data,
+ elem = this[ 0 ],
+ attrs = elem && elem.attributes;
+
+ // Gets all values
+ if ( key === undefined ) {
+ if ( this.length ) {
+ data = dataUser.get( elem );
+
+ if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
+ i = attrs.length;
+ while ( i-- ) {
+
+ // Support: IE 11 only
+ // The attrs elements can be null (#14894)
+ if ( attrs[ i ] ) {
+ name = attrs[ i ].name;
+ if ( name.indexOf( "data-" ) === 0 ) {
+ name = jQuery.camelCase( name.slice( 5 ) );
+ dataAttr( elem, name, data[ name ] );
+ }
+ }
+ }
+ dataPriv.set( elem, "hasDataAttrs", true );
+ }
+ }
+
+ return data;
+ }
+
+ // Sets multiple values
+ if ( typeof key === "object" ) {
+ return this.each( function() {
+ dataUser.set( this, key );
+ } );
+ }
+
+ return access( this, function( value ) {
+ var data;
+
+ // The calling jQuery object (element matches) is not empty
+ // (and therefore has an element appears at this[ 0 ]) and the
+ // `value` parameter was not undefined. An empty jQuery object
+ // will result in `undefined` for elem = this[ 0 ] which will
+ // throw an exception if an attempt to read a data cache is made.
+ if ( elem && value === undefined ) {
+
+ // Attempt to get data from the cache
+ // The key will always be camelCased in Data
+ data = dataUser.get( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // Attempt to "discover" the data in
+ // HTML5 custom data-* attrs
+ data = dataAttr( elem, key );
+ if ( data !== undefined ) {
+ return data;
+ }
+
+ // We tried really hard, but the data doesn't exist.
+ return;
+ }
+
+ // Set the data...
+ this.each( function() {
+
+ // We always store the camelCased key
+ dataUser.set( this, key, value );
+ } );
+ }, null, value, arguments.length > 1, null, true );
+ },
+
+ removeData: function( key ) {
+ return this.each( function() {
+ dataUser.remove( this, key );
+ } );
+ }
+} );
+
+
+jQuery.extend( {
+ queue: function( elem, type, data ) {
+ var queue;
+
+ if ( elem ) {
+ type = ( type || "fx" ) + "queue";
+ queue = dataPriv.get( elem, type );
+
+ // Speed up dequeue by getting out quickly if this is just a lookup
+ if ( data ) {
+ if ( !queue || Array.isArray( data ) ) {
+ queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
+ } else {
+ queue.push( data );
+ }
+ }
+ return queue || [];
+ }
+ },
+
+ dequeue: function( elem, type ) {
+ type = type || "fx";
+
+ var queue = jQuery.queue( elem, type ),
+ startLength = queue.length,
+ fn = queue.shift(),
+ hooks = jQuery._queueHooks( elem, type ),
+ next = function() {
+ jQuery.dequeue( elem, type );
+ };
+
+ // If the fx queue is dequeued, always remove the progress sentinel
+ if ( fn === "inprogress" ) {
+ fn = queue.shift();
+ startLength--;
+ }
+
+ if ( fn ) {
+
+ // Add a progress sentinel to prevent the fx queue from being
+ // automatically dequeued
+ if ( type === "fx" ) {
+ queue.unshift( "inprogress" );
+ }
+
+ // Clear up the last queue stop function
+ delete hooks.stop;
+ fn.call( elem, next, hooks );
+ }
+
+ if ( !startLength && hooks ) {
+ hooks.empty.fire();
+ }
+ },
+
+ // Not public - generate a queueHooks object, or return the current one
+ _queueHooks: function( elem, type ) {
+ var key = type + "queueHooks";
+ return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
+ empty: jQuery.Callbacks( "once memory" ).add( function() {
+ dataPriv.remove( elem, [ type + "queue", key ] );
+ } )
+ } );
+ }
+} );
+
+jQuery.fn.extend( {
+ queue: function( type, data ) {
+ var setter = 2;
+
+ if ( typeof type !== "string" ) {
+ data = type;
+ type = "fx";
+ setter--;
+ }
+
+ if ( arguments.length < setter ) {
+ return jQuery.queue( this[ 0 ], type );
+ }
+
+ return data === undefined ?
+ this :
+ this.each( function() {
+ var queue = jQuery.queue( this, type, data );
+
+ // Ensure a hooks for this queue
+ jQuery._queueHooks( this, type );
+
+ if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ dequeue: function( type ) {
+ return this.each( function() {
+ jQuery.dequeue( this, type );
+ } );
+ },
+ clearQueue: function( type ) {
+ return this.queue( type || "fx", [] );
+ },
+
+ // Get a promise resolved when queues of a certain type
+ // are emptied (fx is the type by default)
+ promise: function( type, obj ) {
+ var tmp,
+ count = 1,
+ defer = jQuery.Deferred(),
+ elements = this,
+ i = this.length,
+ resolve = function() {
+ if ( !( --count ) ) {
+ defer.resolveWith( elements, [ elements ] );
+ }
+ };
+
+ if ( typeof type !== "string" ) {
+ obj = type;
+ type = undefined;
+ }
+ type = type || "fx";
+
+ while ( i-- ) {
+ tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
+ if ( tmp && tmp.empty ) {
+ count++;
+ tmp.empty.add( resolve );
+ }
+ }
+ resolve();
+ return defer.promise( obj );
+ }
+} );
+var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
+
+var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
+
+
+var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
+
+var isHiddenWithinTree = function( elem, el ) {
+
+ // isHiddenWithinTree might be called from jQuery#filter function;
+ // in that case, element will be second argument
+ elem = el || elem;
+
+ // Inline style trumps all
+ return elem.style.display === "none" ||
+ elem.style.display === "" &&
+
+ // Otherwise, check computed style
+ // Support: Firefox <=43 - 45
+ // Disconnected elements can have computed display: none, so first confirm that elem is
+ // in the document.
+ jQuery.contains( elem.ownerDocument, elem ) &&
+
+ jQuery.css( elem, "display" ) === "none";
+ };
+
+var swap = function( elem, options, callback, args ) {
+ var ret, name,
+ old = {};
+
+ // Remember the old values, and insert the new ones
+ for ( name in options ) {
+ old[ name ] = elem.style[ name ];
+ elem.style[ name ] = options[ name ];
+ }
+
+ ret = callback.apply( elem, args || [] );
+
+ // Revert the old values
+ for ( name in options ) {
+ elem.style[ name ] = old[ name ];
+ }
+
+ return ret;
+};
+
+
+
+
+function adjustCSS( elem, prop, valueParts, tween ) {
+ var adjusted,
+ scale = 1,
+ maxIterations = 20,
+ currentValue = tween ?
+ function() {
+ return tween.cur();
+ } :
+ function() {
+ return jQuery.css( elem, prop, "" );
+ },
+ initial = currentValue(),
+ unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
+
+ // Starting value computation is required for potential unit mismatches
+ initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
+ rcssNum.exec( jQuery.css( elem, prop ) );
+
+ if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
+
+ // Trust units reported by jQuery.css
+ unit = unit || initialInUnit[ 3 ];
+
+ // Make sure we update the tween properties later on
+ valueParts = valueParts || [];
+
+ // Iteratively approximate from a nonzero starting point
+ initialInUnit = +initial || 1;
+
+ do {
+
+ // If previous iteration zeroed out, double until we get *something*.
+ // Use string for doubling so we don't accidentally see scale as unchanged below
+ scale = scale || ".5";
+
+ // Adjust and apply
+ initialInUnit = initialInUnit / scale;
+ jQuery.style( elem, prop, initialInUnit + unit );
+
+ // Update scale, tolerating zero or NaN from tween.cur()
+ // Break the loop if scale is unchanged or perfect, or if we've just had enough.
+ } while (
+ scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
+ );
+ }
+
+ if ( valueParts ) {
+ initialInUnit = +initialInUnit || +initial || 0;
+
+ // Apply relative offset (+=/-=) if specified
+ adjusted = valueParts[ 1 ] ?
+ initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+ +valueParts[ 2 ];
+ if ( tween ) {
+ tween.unit = unit;
+ tween.start = initialInUnit;
+ tween.end = adjusted;
+ }
+ }
+ return adjusted;
+}
+
+
+var defaultDisplayMap = {};
+
+function getDefaultDisplay( elem ) {
+ var temp,
+ doc = elem.ownerDocument,
+ nodeName = elem.nodeName,
+ display = defaultDisplayMap[ nodeName ];
+
+ if ( display ) {
+ return display;
+ }
+
+ temp = doc.body.appendChild( doc.createElement( nodeName ) );
+ display = jQuery.css( temp, "display" );
+
+ temp.parentNode.removeChild( temp );
+
+ if ( display === "none" ) {
+ display = "block";
+ }
+ defaultDisplayMap[ nodeName ] = display;
+
+ return display;
+}
+
+function showHide( elements, show ) {
+ var display, elem,
+ values = [],
+ index = 0,
+ length = elements.length;
+
+ // Determine new display value for elements that need to change
+ for ( ; index < length; index++ ) {
+ elem = elements[ index ];
+ if ( !elem.style ) {
+ continue;
+ }
+
+ display = elem.style.display;
+ if ( show ) {
+
+ // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
+ // check is required in this first loop unless we have a nonempty display value (either
+ // inline or about-to-be-restored)
+ if ( display === "none" ) {
+ values[ index ] = dataPriv.get( elem, "display" ) || null;
+ if ( !values[ index ] ) {
+ elem.style.display = "";
+ }
+ }
+ if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
+ values[ index ] = getDefaultDisplay( elem );
+ }
+ } else {
+ if ( display !== "none" ) {
+ values[ index ] = "none";
+
+ // Remember what we're overwriting
+ dataPriv.set( elem, "display", display );
+ }
+ }
+ }
+
+ // Set the display of the elements in a second loop to avoid constant reflow
+ for ( index = 0; index < length; index++ ) {
+ if ( values[ index ] != null ) {
+ elements[ index ].style.display = values[ index ];
+ }
+ }
+
+ return elements;
+}
+
+jQuery.fn.extend( {
+ show: function() {
+ return showHide( this, true );
+ },
+ hide: function() {
+ return showHide( this );
+ },
+ toggle: function( state ) {
+ if ( typeof state === "boolean" ) {
+ return state ? this.show() : this.hide();
+ }
+
+ return this.each( function() {
+ if ( isHiddenWithinTree( this ) ) {
+ jQuery( this ).show();
+ } else {
+ jQuery( this ).hide();
+ }
+ } );
+ }
+} );
+var rcheckableType = ( /^(?:checkbox|radio)$/i );
+
+var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
+
+var rscriptType = ( /^$|\/(?:java|ecma)script/i );
+
+
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+ // Support: IE <=9 only
+ option: [ 1, "<select multiple='multiple'>", "</select>" ],
+
+ // XHTML parsers do not magically insert elements in the
+ // same way that tag soup parsers do. So we cannot shorten
+ // this by omitting <tbody> or other required elements.
+ thead: [ 1, "<table>", "</table>" ],
+ col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+ tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+ td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+ _default: [ 0, "", "" ]
+};
+
+// Support: IE <=9 only
+wrapMap.optgroup = wrapMap.option;
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+
+function getAll( context, tag ) {
+
+ // Support: IE <=9 - 11 only
+ // Use typeof to avoid zero-argument method invocation on host objects (#15151)
+ var ret;
+
+ if ( typeof context.getElementsByTagName !== "undefined" ) {
+ ret = context.getElementsByTagName( tag || "*" );
+
+ } else if ( typeof context.querySelectorAll !== "undefined" ) {
+ ret = context.querySelectorAll( tag || "*" );
+
+ } else {
+ ret = [];
+ }
+
+ if ( tag === undefined || tag && nodeName( context, tag ) ) {
+ return jQuery.merge( [ context ], ret );
+ }
+
+ return ret;
+}
+
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+ var i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ dataPriv.set(
+ elems[ i ],
+ "globalEval",
+ !refElements || dataPriv.get( refElements[ i ], "globalEval" )
+ );
+ }
+}
+
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+ var elem, tmp, tag, wrap, contains, j,
+ fragment = context.createDocumentFragment(),
+ nodes = [],
+ i = 0,
+ l = elems.length;
+
+ for ( ; i < l; i++ ) {
+ elem = elems[ i ];
+
+ if ( elem || elem === 0 ) {
+
+ // Add nodes directly
+ if ( jQuery.type( elem ) === "object" ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+ // Convert non-html into a text node
+ } else if ( !rhtml.test( elem ) ) {
+ nodes.push( context.createTextNode( elem ) );
+
+ // Convert html into DOM nodes
+ } else {
+ tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+ // Deserialize a standard representation
+ tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+ wrap = wrapMap[ tag ] || wrapMap._default;
+ tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+ // Descend through wrappers to the right content
+ j = wrap[ 0 ];
+ while ( j-- ) {
+ tmp = tmp.lastChild;
+ }
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( nodes, tmp.childNodes );
+
+ // Remember the top-level container
+ tmp = fragment.firstChild;
+
+ // Ensure the created nodes are orphaned (#12392)
+ tmp.textContent = "";
+ }
+ }
+ }
+
+ // Remove wrapper from fragment
+ fragment.textContent = "";
+
+ i = 0;
+ while ( ( elem = nodes[ i++ ] ) ) {
+
+ // Skip elements already in the context collection (trac-4087)
+ if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+ if ( ignored ) {
+ ignored.push( elem );
+ }
+ continue;
+ }
+
+ contains = jQuery.contains( elem.ownerDocument, elem );
+
+ // Append to fragment
+ tmp = getAll( fragment.appendChild( elem ), "script" );
+
+ // Preserve script evaluation history
+ if ( contains ) {
+ setGlobalEval( tmp );
+ }
+
+ // Capture executables
+ if ( scripts ) {
+ j = 0;
+ while ( ( elem = tmp[ j++ ] ) ) {
+ if ( rscriptType.test( elem.type || "" ) ) {
+ scripts.push( elem );
+ }
+ }
+ }
+ }
+
+ return fragment;
+}
+
+
+( function() {
+ var fragment = document.createDocumentFragment(),
+ div = fragment.appendChild( document.createElement( "div" ) ),
+ input = document.createElement( "input" );
+
+ // Support: Android 4.0 - 4.3 only
+ // Check state lost if the name is set (#11217)
+ // Support: Windows Web Apps (WWA)
+ // `name` and `type` must use .setAttribute for WWA (#14901)
+ input.setAttribute( "type", "radio" );
+ input.setAttribute( "checked", "checked" );
+ input.setAttribute( "name", "t" );
+
+ div.appendChild( input );
+
+ // Support: Android <=4.1 only
+ // Older WebKit doesn't clone checked state correctly in fragments
+ support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+ // Support: IE <=11 only
+ // Make sure textarea (and checkbox) defaultValue is properly cloned
+ div.innerHTML = "<textarea>x</textarea>";
+ support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
+} )();
+var documentElement = document.documentElement;
+
+
+
+var
+ rkeyEvent = /^key/,
+ rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
+ rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
+
+function returnTrue() {
+ return true;
+}
+
+function returnFalse() {
+ return false;
+}
+
+// Support: IE <=9 only
+// See #13393 for more info
+function safeActiveElement() {
+ try {
+ return document.activeElement;
+ } catch ( err ) { }
+}
+
+function on( elem, types, selector, data, fn, one ) {
+ var origFn, type;
+
+ // Types can be a map of types/handlers
+ if ( typeof types === "object" ) {
+
+ // ( types-Object, selector, data )
+ if ( typeof selector !== "string" ) {
+
+ // ( types-Object, data )
+ data = data || selector;
+ selector = undefined;
+ }
+ for ( type in types ) {
+ on( elem, type, selector, data, types[ type ], one );
+ }
+ return elem;
+ }
+
+ if ( data == null && fn == null ) {
+
+ // ( types, fn )
+ fn = selector;
+ data = selector = undefined;
+ } else if ( fn == null ) {
+ if ( typeof selector === "string" ) {
+
+ // ( types, selector, fn )
+ fn = data;
+ data = undefined;
+ } else {
+
+ // ( types, data, fn )
+ fn = data;
+ data = selector;
+ selector = undefined;
+ }
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ } else if ( !fn ) {
+ return elem;
+ }
+
+ if ( one === 1 ) {
+ origFn = fn;
+ fn = function( event ) {
+
+ // Can use an empty set, since event contains the info
+ jQuery().off( event );
+ return origFn.apply( this, arguments );
+ };
+
+ // Use same guid so caller can remove using origFn
+ fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+ }
+ return elem.each( function() {
+ jQuery.event.add( this, types, fn, data, selector );
+ } );
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+ global: {},
+
+ add: function( elem, types, handler, data, selector ) {
+
+ var handleObjIn, eventHandle, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.get( elem );
+
+ // Don't attach events to noData or text/comment nodes (but allow plain objects)
+ if ( !elemData ) {
+ return;
+ }
+
+ // Caller can pass in an object of custom data in lieu of the handler
+ if ( handler.handler ) {
+ handleObjIn = handler;
+ handler = handleObjIn.handler;
+ selector = handleObjIn.selector;
+ }
+
+ // Ensure that invalid selectors throw exceptions at attach time
+ // Evaluate against documentElement in case elem is a non-element node (e.g., document)
+ if ( selector ) {
+ jQuery.find.matchesSelector( documentElement, selector );
+ }
+
+ // Make sure that the handler has a unique ID, used to find/remove it later
+ if ( !handler.guid ) {
+ handler.guid = jQuery.guid++;
+ }
+
+ // Init the element's event structure and main handler, if this is the first
+ if ( !( events = elemData.events ) ) {
+ events = elemData.events = {};
+ }
+ if ( !( eventHandle = elemData.handle ) ) {
+ eventHandle = elemData.handle = function( e ) {
+
+ // Discard the second event of a jQuery.event.trigger() and
+ // when an event is called after a page has unloaded
+ return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
+ jQuery.event.dispatch.apply( elem, arguments ) : undefined;
+ };
+ }
+
+ // Handle multiple events separated by a space
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // There *must* be a type, no attaching namespace-only handlers
+ if ( !type ) {
+ continue;
+ }
+
+ // If event changes its type, use the special event handlers for the changed type
+ special = jQuery.event.special[ type ] || {};
+
+ // If selector defined, determine special event api type, otherwise given type
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+
+ // Update special based on newly reset type
+ special = jQuery.event.special[ type ] || {};
+
+ // handleObj is passed to all event handlers
+ handleObj = jQuery.extend( {
+ type: type,
+ origType: origType,
+ data: data,
+ handler: handler,
+ guid: handler.guid,
+ selector: selector,
+ needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+ namespace: namespaces.join( "." )
+ }, handleObjIn );
+
+ // Init the event handler queue if we're the first
+ if ( !( handlers = events[ type ] ) ) {
+ handlers = events[ type ] = [];
+ handlers.delegateCount = 0;
+
+ // Only use addEventListener if the special events handler returns false
+ if ( !special.setup ||
+ special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+
+ if ( elem.addEventListener ) {
+ elem.addEventListener( type, eventHandle );
+ }
+ }
+ }
+
+ if ( special.add ) {
+ special.add.call( elem, handleObj );
+
+ if ( !handleObj.handler.guid ) {
+ handleObj.handler.guid = handler.guid;
+ }
+ }
+
+ // Add to the element's handler list, delegates in front
+ if ( selector ) {
+ handlers.splice( handlers.delegateCount++, 0, handleObj );
+ } else {
+ handlers.push( handleObj );
+ }
+
+ // Keep track of which events have ever been used, for event optimization
+ jQuery.event.global[ type ] = true;
+ }
+
+ },
+
+ // Detach an event or set of events from an element
+ remove: function( elem, types, handler, selector, mappedTypes ) {
+
+ var j, origCount, tmp,
+ events, t, handleObj,
+ special, handlers, type, namespaces, origType,
+ elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
+
+ if ( !elemData || !( events = elemData.events ) ) {
+ return;
+ }
+
+ // Once for each type.namespace in types; type may be omitted
+ types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
+ t = types.length;
+ while ( t-- ) {
+ tmp = rtypenamespace.exec( types[ t ] ) || [];
+ type = origType = tmp[ 1 ];
+ namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
+
+ // Unbind all events (on this namespace, if provided) for the element
+ if ( !type ) {
+ for ( type in events ) {
+ jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+ }
+ continue;
+ }
+
+ special = jQuery.event.special[ type ] || {};
+ type = ( selector ? special.delegateType : special.bindType ) || type;
+ handlers = events[ type ] || [];
+ tmp = tmp[ 2 ] &&
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
+
+ // Remove matching events
+ origCount = j = handlers.length;
+ while ( j-- ) {
+ handleObj = handlers[ j ];
+
+ if ( ( mappedTypes || origType === handleObj.origType ) &&
+ ( !handler || handler.guid === handleObj.guid ) &&
+ ( !tmp || tmp.test( handleObj.namespace ) ) &&
+ ( !selector || selector === handleObj.selector ||
+ selector === "**" && handleObj.selector ) ) {
+ handlers.splice( j, 1 );
+
+ if ( handleObj.selector ) {
+ handlers.delegateCount--;
+ }
+ if ( special.remove ) {
+ special.remove.call( elem, handleObj );
+ }
+ }
+ }
+
+ // Remove generic event handler if we removed something and no more handlers exist
+ // (avoids potential for endless recursion during removal of special event handlers)
+ if ( origCount && !handlers.length ) {
+ if ( !special.teardown ||
+ special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+
+ jQuery.removeEvent( elem, type, elemData.handle );
+ }
+
+ delete events[ type ];
+ }
+ }
+
+ // Remove data and the expando if it's no longer used
+ if ( jQuery.isEmptyObject( events ) ) {
+ dataPriv.remove( elem, "handle events" );
+ }
+ },
+
+ dispatch: function( nativeEvent ) {
+
+ // Make a writable jQuery.Event from the native event object
+ var event = jQuery.event.fix( nativeEvent );
+
+ var i, j, ret, matched, handleObj, handlerQueue,
+ args = new Array( arguments.length ),
+ handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
+ special = jQuery.event.special[ event.type ] || {};
+
+ // Use the fix-ed jQuery.Event rather than the (read-only) native event
+ args[ 0 ] = event;
+
+ for ( i = 1; i < arguments.length; i++ ) {
+ args[ i ] = arguments[ i ];
+ }
+
+ event.delegateTarget = this;
+
+ // Call the preDispatch hook for the mapped type, and let it bail if desired
+ if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+ return;
+ }
+
+ // Determine handlers
+ handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+ // Run delegates first; they may want to stop propagation beneath us
+ i = 0;
+ while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
+ event.currentTarget = matched.elem;
+
+ j = 0;
+ while ( ( handleObj = matched.handlers[ j++ ] ) &&
+ !event.isImmediatePropagationStopped() ) {
+
+ // Triggered event must either 1) have no namespace, or 2) have namespace(s)
+ // a subset or equal to those in the bound event (both can have no namespace).
+ if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
+
+ event.handleObj = handleObj;
+ event.data = handleObj.data;
+
+ ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
+ handleObj.handler ).apply( matched.elem, args );
+
+ if ( ret !== undefined ) {
+ if ( ( event.result = ret ) === false ) {
+ event.preventDefault();
+ event.stopPropagation();
+ }
+ }
+ }
+ }
+ }
+
+ // Call the postDispatch hook for the mapped type
+ if ( special.postDispatch ) {
+ special.postDispatch.call( this, event );
+ }
+
+ return event.result;
+ },
+
+ handlers: function( event, handlers ) {
+ var i, handleObj, sel, matchedHandlers, matchedSelectors,
+ handlerQueue = [],
+ delegateCount = handlers.delegateCount,
+ cur = event.target;
+
+ // Find delegate handlers
+ if ( delegateCount &&
+
+ // Support: IE <=9
+ // Black-hole SVG <use> instance trees (trac-13180)
+ cur.nodeType &&
+
+ // Support: Firefox <=42
+ // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
+ // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
+ // Support: IE 11 only
+ // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
+ !( event.type === "click" && event.button >= 1 ) ) {
+
+ for ( ; cur !== this; cur = cur.parentNode || this ) {
+
+ // Don't check non-elements (#13208)
+ // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+ if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
+ matchedHandlers = [];
+ matchedSelectors = {};
+ for ( i = 0; i < delegateCount; i++ ) {
+ handleObj = handlers[ i ];
+
+ // Don't conflict with Object.prototype properties (#13203)
+ sel = handleObj.selector + " ";
+
+ if ( matchedSelectors[ sel ] === undefined ) {
+ matchedSelectors[ sel ] = handleObj.needsContext ?
+ jQuery( sel, this ).index( cur ) > -1 :
+ jQuery.find( sel, this, null, [ cur ] ).length;
+ }
+ if ( matchedSelectors[ sel ] ) {
+ matchedHandlers.push( handleObj );
+ }
+ }
+ if ( matchedHandlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
+ }
+ }
+ }
+ }
+
+ // Add the remaining (directly-bound) handlers
+ cur = this;
+ if ( delegateCount < handlers.length ) {
+ handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
+ }
+
+ return handlerQueue;
+ },
+
+ addProp: function( name, hook ) {
+ Object.defineProperty( jQuery.Event.prototype, name, {
+ enumerable: true,
+ configurable: true,
+
+ get: jQuery.isFunction( hook ) ?
+ function() {
+ if ( this.originalEvent ) {
+ return hook( this.originalEvent );
+ }
+ } :
+ function() {
+ if ( this.originalEvent ) {
+ return this.originalEvent[ name ];
+ }
+ },
+
+ set: function( value ) {
+ Object.defineProperty( this, name, {
+ enumerable: true,
+ configurable: true,
+ writable: true,
+ value: value
+ } );
+ }
+ } );
+ },
+
+ fix: function( originalEvent ) {
+ return originalEvent[ jQuery.expando ] ?
+ originalEvent :
+ new jQuery.Event( originalEvent );
+ },
+
+ special: {
+ load: {
+
+ // Prevent triggered image.load events from bubbling to window.load
+ noBubble: true
+ },
+ focus: {
+
+ // Fire native event if possible so blur/focus sequence is correct
+ trigger: function() {
+ if ( this !== safeActiveElement() && this.focus ) {
+ this.focus();
+ return false;
+ }
+ },
+ delegateType: "focusin"
+ },
+ blur: {
+ trigger: function() {
+ if ( this === safeActiveElement() && this.blur ) {
+ this.blur();
+ return false;
+ }
+ },
+ delegateType: "focusout"
+ },
+ click: {
+
+ // For checkbox, fire native event so checked state will be right
+ trigger: function() {
+ if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
+ this.click();
+ return false;
+ }
+ },
+
+ // For cross-browser consistency, don't fire native .click() on links
+ _default: function( event ) {
+ return nodeName( event.target, "a" );
+ }
+ },
+
+ beforeunload: {
+ postDispatch: function( event ) {
+
+ // Support: Firefox 20+
+ // Firefox doesn't alert if the returnValue field is not set.
+ if ( event.result !== undefined && event.originalEvent ) {
+ event.originalEvent.returnValue = event.result;
+ }
+ }
+ }
+ }
+};
+
+jQuery.removeEvent = function( elem, type, handle ) {
+
+ // This "if" is needed for plain objects
+ if ( elem.removeEventListener ) {
+ elem.removeEventListener( type, handle );
+ }
+};
+
+jQuery.Event = function( src, props ) {
+
+ // Allow instantiation without the 'new' keyword
+ if ( !( this instanceof jQuery.Event ) ) {
+ return new jQuery.Event( src, props );
+ }
+
+ // Event object
+ if ( src && src.type ) {
+ this.originalEvent = src;
+ this.type = src.type;
+
+ // Events bubbling up the document may have been marked as prevented
+ // by a handler lower down the tree; reflect the correct value.
+ this.isDefaultPrevented = src.defaultPrevented ||
+ src.defaultPrevented === undefined &&
+
+ // Support: Android <=2.3 only
+ src.returnValue === false ?
+ returnTrue :
+ returnFalse;
+
+ // Create target properties
+ // Support: Safari <=6 - 7 only
+ // Target should not be a text node (#504, #13143)
+ this.target = ( src.target && src.target.nodeType === 3 ) ?
+ src.target.parentNode :
+ src.target;
+
+ this.currentTarget = src.currentTarget;
+ this.relatedTarget = src.relatedTarget;
+
+ // Event type
+ } else {
+ this.type = src;
+ }
+
+ // Put explicitly provided properties onto the event object
+ if ( props ) {
+ jQuery.extend( this, props );
+ }
+
+ // Create a timestamp if incoming event doesn't have one
+ this.timeStamp = src && src.timeStamp || jQuery.now();
+
+ // Mark it as fixed
+ this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+ constructor: jQuery.Event,
+ isDefaultPrevented: returnFalse,
+ isPropagationStopped: returnFalse,
+ isImmediatePropagationStopped: returnFalse,
+ isSimulated: false,
+
+ preventDefault: function() {
+ var e = this.originalEvent;
+
+ this.isDefaultPrevented = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.preventDefault();
+ }
+ },
+ stopPropagation: function() {
+ var e = this.originalEvent;
+
+ this.isPropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopPropagation();
+ }
+ },
+ stopImmediatePropagation: function() {
+ var e = this.originalEvent;
+
+ this.isImmediatePropagationStopped = returnTrue;
+
+ if ( e && !this.isSimulated ) {
+ e.stopImmediatePropagation();
+ }
+
+ this.stopPropagation();
+ }
+};
+
+// Includes all common event props including KeyEvent and MouseEvent specific props
+jQuery.each( {
+ altKey: true,
+ bubbles: true,
+ cancelable: true,
+ changedTouches: true,
+ ctrlKey: true,
+ detail: true,
+ eventPhase: true,
+ metaKey: true,
+ pageX: true,
+ pageY: true,
+ shiftKey: true,
+ view: true,
+ "char": true,
+ charCode: true,
+ key: true,
+ keyCode: true,
+ button: true,
+ buttons: true,
+ clientX: true,
+ clientY: true,
+ offsetX: true,
+ offsetY: true,
+ pointerId: true,
+ pointerType: true,
+ screenX: true,
+ screenY: true,
+ targetTouches: true,
+ toElement: true,
+ touches: true,
+
+ which: function( event ) {
+ var button = event.button;
+
+ // Add which for key events
+ if ( event.which == null && rkeyEvent.test( event.type ) ) {
+ return event.charCode != null ? event.charCode : event.keyCode;
+ }
+
+ // Add which for click: 1 === left; 2 === middle; 3 === right
+ if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
+ if ( button & 1 ) {
+ return 1;
+ }
+
+ if ( button & 2 ) {
+ return 3;
+ }
+
+ if ( button & 4 ) {
+ return 2;
+ }
+
+ return 0;
+ }
+
+ return event.which;
+ }
+}, jQuery.event.addProp );
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+// so that event delegation works in jQuery.
+// Do the same for pointerenter/pointerleave and pointerover/pointerout
+//
+// Support: Safari 7 only
+// Safari sends mouseenter too often; see:
+// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
+// for the description of the bug (it existed in older Chrome versions as well).
+jQuery.each( {
+ mouseenter: "mouseover",
+ mouseleave: "mouseout",
+ pointerenter: "pointerover",
+ pointerleave: "pointerout"
+}, function( orig, fix ) {
+ jQuery.event.special[ orig ] = {
+ delegateType: fix,
+ bindType: fix,
+
+ handle: function( event ) {
+ var ret,
+ target = this,
+ related = event.relatedTarget,
+ handleObj = event.handleObj;
+
+ // For mouseenter/leave call the handler if related is outside the target.
+ // NB: No relatedTarget if the mouse left/entered the browser window
+ if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
+ event.type = handleObj.origType;
+ ret = handleObj.handler.apply( this, arguments );
+ event.type = fix;
+ }
+ return ret;
+ }
+ };
+} );
+
+jQuery.fn.extend( {
+
+ on: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn );
+ },
+ one: function( types, selector, data, fn ) {
+ return on( this, types, selector, data, fn, 1 );
+ },
+ off: function( types, selector, fn ) {
+ var handleObj, type;
+ if ( types && types.preventDefault && types.handleObj ) {
+
+ // ( event ) dispatched jQuery.Event
+ handleObj = types.handleObj;
+ jQuery( types.delegateTarget ).off(
+ handleObj.namespace ?
+ handleObj.origType + "." + handleObj.namespace :
+ handleObj.origType,
+ handleObj.selector,
+ handleObj.handler
+ );
+ return this;
+ }
+ if ( typeof types === "object" ) {
+
+ // ( types-object [, selector] )
+ for ( type in types ) {
+ this.off( type, selector, types[ type ] );
+ }
+ return this;
+ }
+ if ( selector === false || typeof selector === "function" ) {
+
+ // ( types [, fn] )
+ fn = selector;
+ selector = undefined;
+ }
+ if ( fn === false ) {
+ fn = returnFalse;
+ }
+ return this.each( function() {
+ jQuery.event.remove( this, types, fn, selector );
+ } );
+ }
+} );
+
+
+var
+
+ /* eslint-disable max-len */
+
+ // See https://github.com/eslint/eslint/issues/3229
+ rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
+
+ /* eslint-enable */
+
+ // Support: IE <=10 - 11, Edge 12 - 13
+ // In IE/Edge using regex groups here causes severe slowdowns.
+ // See https://connect.microsoft.com/IE/feedback/details/1736512/
+ rnoInnerhtml = /<script|<style|<link/i,
+
+ // checked="checked" or checked
+ rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+ rscriptTypeMasked = /^true\/(.*)/,
+ rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
+
+// Prefer a tbody over its parent table for containing new rows
+function manipulationTarget( elem, content ) {
+ if ( nodeName( elem, "table" ) &&
+ nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
+
+ return jQuery( ">tbody", elem )[ 0 ] || elem;
+ }
+
+ return elem;
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+ elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
+ return elem;
+}
+function restoreScript( elem ) {
+ var match = rscriptTypeMasked.exec( elem.type );
+
+ if ( match ) {
+ elem.type = match[ 1 ];
+ } else {
+ elem.removeAttribute( "type" );
+ }
+
+ return elem;
+}
+
+function cloneCopyEvent( src, dest ) {
+ var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
+
+ if ( dest.nodeType !== 1 ) {
+ return;
+ }
+
+ // 1. Copy private data: events, handlers, etc.
+ if ( dataPriv.hasData( src ) ) {
+ pdataOld = dataPriv.access( src );
+ pdataCur = dataPriv.set( dest, pdataOld );
+ events = pdataOld.events;
+
+ if ( events ) {
+ delete pdataCur.handle;
+ pdataCur.events = {};
+
+ for ( type in events ) {
+ for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+ jQuery.event.add( dest, type, events[ type ][ i ] );
+ }
+ }
+ }
+ }
+
+ // 2. Copy user data
+ if ( dataUser.hasData( src ) ) {
+ udataOld = dataUser.access( src );
+ udataCur = jQuery.extend( {}, udataOld );
+
+ dataUser.set( dest, udataCur );
+ }
+}
+
+// Fix IE bugs, see support tests
+function fixInput( src, dest ) {
+ var nodeName = dest.nodeName.toLowerCase();
+
+ // Fails to persist the checked state of a cloned checkbox or radio button.
+ if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
+ dest.checked = src.checked;
+
+ // Fails to return the selected option to the default selected state when cloning options
+ } else if ( nodeName === "input" || nodeName === "textarea" ) {
+ dest.defaultValue = src.defaultValue;
+ }
+}
+
+function domManip( collection, args, callback, ignored ) {
+
+ // Flatten any nested arrays
+ args = concat.apply( [], args );
+
+ var fragment, first, scripts, hasScripts, node, doc,
+ i = 0,
+ l = collection.length,
+ iNoClone = l - 1,
+ value = args[ 0 ],
+ isFunction = jQuery.isFunction( value );
+
+ // We can't cloneNode fragments that contain checked, in WebKit
+ if ( isFunction ||
+ ( l > 1 && typeof value === "string" &&
+ !support.checkClone && rchecked.test( value ) ) ) {
+ return collection.each( function( index ) {
+ var self = collection.eq( index );
+ if ( isFunction ) {
+ args[ 0 ] = value.call( this, index, self.html() );
+ }
+ domManip( self, args, callback, ignored );
+ } );
+ }
+
+ if ( l ) {
+ fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
+ first = fragment.firstChild;
+
+ if ( fragment.childNodes.length === 1 ) {
+ fragment = first;
+ }
+
+ // Require either new content or an interest in ignored elements to invoke the callback
+ if ( first || ignored ) {
+ scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+ hasScripts = scripts.length;
+
+ // Use the original fragment for the last item
+ // instead of the first because it can end up
+ // being emptied incorrectly in certain situations (#8070).
+ for ( ; i < l; i++ ) {
+ node = fragment;
+
+ if ( i !== iNoClone ) {
+ node = jQuery.clone( node, true, true );
+
+ // Keep references to cloned scripts for later restoration
+ if ( hasScripts ) {
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // push.apply(_, arraylike) throws on ancient WebKit
+ jQuery.merge( scripts, getAll( node, "script" ) );
+ }
+ }
+
+ callback.call( collection[ i ], node, i );
+ }
+
+ if ( hasScripts ) {
+ doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+ // Reenable scripts
+ jQuery.map( scripts, restoreScript );
+
+ // Evaluate executable scripts on first document insertion
+ for ( i = 0; i < hasScripts; i++ ) {
+ node = scripts[ i ];
+ if ( rscriptType.test( node.type || "" ) &&
+ !dataPriv.access( node, "globalEval" ) &&
+ jQuery.contains( doc, node ) ) {
+
+ if ( node.src ) {
+
+ // Optional AJAX dependency, but won't run scripts if not present
+ if ( jQuery._evalUrl ) {
+ jQuery._evalUrl( node.src );
+ }
+ } else {
+ DOMEval( node.textContent.replace( rcleanScript, "" ), doc );
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return collection;
+}
+
+function remove( elem, selector, keepData ) {
+ var node,
+ nodes = selector ? jQuery.filter( selector, elem ) : elem,
+ i = 0;
+
+ for ( ; ( node = nodes[ i ] ) != null; i++ ) {
+ if ( !keepData && node.nodeType === 1 ) {
+ jQuery.cleanData( getAll( node ) );
+ }
+
+ if ( node.parentNode ) {
+ if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
+ setGlobalEval( getAll( node, "script" ) );
+ }
+ node.parentNode.removeChild( node );
+ }
+ }
+
+ return elem;
+}
+
+jQuery.extend( {
+ htmlPrefilter: function( html ) {
+ return html.replace( rxhtmlTag, "<$1></$2>" );
+ },
+
+ clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+ var i, l, srcElements, destElements,
+ clone = elem.cloneNode( true ),
+ inPage = jQuery.contains( elem.ownerDocument, elem );
+
+ // Fix IE cloning issues
+ if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
+ !jQuery.isXMLDoc( elem ) ) {
+
+ // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
+ destElements = getAll( clone );
+ srcElements = getAll( elem );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ fixInput( srcElements[ i ], destElements[ i ] );
+ }
+ }
+
+ // Copy the events from the original to the clone
+ if ( dataAndEvents ) {
+ if ( deepDataAndEvents ) {
+ srcElements = srcElements || getAll( elem );
+ destElements = destElements || getAll( clone );
+
+ for ( i = 0, l = srcElements.length; i < l; i++ ) {
+ cloneCopyEvent( srcElements[ i ], destElements[ i ] );
+ }
+ } else {
+ cloneCopyEvent( elem, clone );
+ }
+ }
+
+ // Preserve script evaluation history
+ destElements = getAll( clone, "script" );
+ if ( destElements.length > 0 ) {
+ setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+ }
+
+ // Return the cloned set
+ return clone;
+ },
+
+ cleanData: function( elems ) {
+ var data, elem, type,
+ special = jQuery.event.special,
+ i = 0;
+
+ for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
+ if ( acceptData( elem ) ) {
+ if ( ( data = elem[ dataPriv.expando ] ) ) {
+ if ( data.events ) {
+ for ( type in data.events ) {
+ if ( special[ type ] ) {
+ jQuery.event.remove( elem, type );
+
+ // This is a shortcut to avoid jQuery.event.remove's overhead
+ } else {
+ jQuery.removeEvent( elem, type, data.handle );
+ }
+ }
+ }
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataPriv.expando ] = undefined;
+ }
+ if ( elem[ dataUser.expando ] ) {
+
+ // Support: Chrome <=35 - 45+
+ // Assign undefined instead of using delete, see Data#remove
+ elem[ dataUser.expando ] = undefined;
+ }
+ }
+ }
+ }
+} );
+
+jQuery.fn.extend( {
+ detach: function( selector ) {
+ return remove( this, selector, true );
+ },
+
+ remove: function( selector ) {
+ return remove( this, selector );
+ },
+
+ text: function( value ) {
+ return access( this, function( value ) {
+ return value === undefined ?
+ jQuery.text( this ) :
+ this.empty().each( function() {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ this.textContent = value;
+ }
+ } );
+ }, null, value, arguments.length );
+ },
+
+ append: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.appendChild( elem );
+ }
+ } );
+ },
+
+ prepend: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+ var target = manipulationTarget( this, elem );
+ target.insertBefore( elem, target.firstChild );
+ }
+ } );
+ },
+
+ before: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this );
+ }
+ } );
+ },
+
+ after: function() {
+ return domManip( this, arguments, function( elem ) {
+ if ( this.parentNode ) {
+ this.parentNode.insertBefore( elem, this.nextSibling );
+ }
+ } );
+ },
+
+ empty: function() {
+ var elem,
+ i = 0;
+
+ for ( ; ( elem = this[ i ] ) != null; i++ ) {
+ if ( elem.nodeType === 1 ) {
+
+ // Prevent memory leaks
+ jQuery.cleanData( getAll( elem, false ) );
+
+ // Remove any remaining nodes
+ elem.textContent = "";
+ }
+ }
+
+ return this;
+ },
+
+ clone: function( dataAndEvents, deepDataAndEvents ) {
+ dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+ deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+ return this.map( function() {
+ return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+ } );
+ },
+
+ html: function( value ) {
+ return access( this, function( value ) {
+ var elem = this[ 0 ] || {},
+ i = 0,
+ l = this.length;
+
+ if ( value === undefined && elem.nodeType === 1 ) {
+ return elem.innerHTML;
+ }
+
+ // See if we can take a shortcut and just use innerHTML
+ if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+ !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
+
+ value = jQuery.htmlPrefilter( value );
+
+ try {
+ for ( ; i < l; i++ ) {
+ elem = this[ i ] || {};
+
+ // Remove element nodes and prevent memory leaks
+ if ( elem.nodeType === 1 ) {
+ jQuery.cleanData( getAll( elem, false ) );
+ elem.innerHTML = value;
+ }
+ }
+
+ elem = 0;
+
+ // If using innerHTML throws an exception, use the fallback method
+ } catch ( e ) {}
+ }
+
+ if ( elem ) {
+ this.empty().append( value );
+ }
+ }, null, value, arguments.length );
+ },
+
+ replaceWith: function() {
+ var ignored = [];
+
+ // Make the changes, replacing each non-ignored context element with the new content
+ return domManip( this, arguments, function( elem ) {
+ var parent = this.parentNode;
+
+ if ( jQuery.inArray( this, ignored ) < 0 ) {
+ jQuery.cleanData( getAll( this ) );
+ if ( parent ) {
+ parent.replaceChild( elem, this );
+ }
+ }
+
+ // Force callback invocation
+ }, ignored );
+ }
+} );
+
+jQuery.each( {
+ appendTo: "append",
+ prependTo: "prepend",
+ insertBefore: "before",
+ insertAfter: "after",
+ replaceAll: "replaceWith"
+}, function( name, original ) {
+ jQuery.fn[ name ] = function( selector ) {
+ var elems,
+ ret = [],
+ insert = jQuery( selector ),
+ last = insert.length - 1,
+ i = 0;
+
+ for ( ; i <= last; i++ ) {
+ elems = i === last ? this : this.clone( true );
+ jQuery( insert[ i ] )[ original ]( elems );
+
+ // Support: Android <=4.0 only, PhantomJS 1 only
+ // .get() because push.apply(_, arraylike) throws on ancient WebKit
+ push.apply( ret, elems.get() );
+ }
+
+ return this.pushStack( ret );
+ };
+} );
+var rmargin = ( /^margin/ );
+
+var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
+
+var getStyles = function( elem ) {
+
+ // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
+ // IE throws on elements created in popups
+ // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
+ var view = elem.ownerDocument.defaultView;
+
+ if ( !view || !view.opener ) {
+ view = window;
+ }
+
+ return view.getComputedStyle( elem );
+ };
+
+
+
+( function() {
+
+ // Executing both pixelPosition & boxSizingReliable tests require only one layout
+ // so they're executed at the same time to save the second computation.
+ function computeStyleTests() {
+
+ // This is a singleton, we need to execute it only once
+ if ( !div ) {
+ return;
+ }
+
+ div.style.cssText =
+ "box-sizing:border-box;" +
+ "position:relative;display:block;" +
+ "margin:auto;border:1px;padding:1px;" +
+ "top:1%;width:50%";
+ div.innerHTML = "";
+ documentElement.appendChild( container );
+
+ var divStyle = window.getComputedStyle( div );
+ pixelPositionVal = divStyle.top !== "1%";
+
+ // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
+ reliableMarginLeftVal = divStyle.marginLeft === "2px";
+ boxSizingReliableVal = divStyle.width === "4px";
+
+ // Support: Android 4.0 - 4.3 only
+ // Some styles come back with percentage values, even though they shouldn't
+ div.style.marginRight = "50%";
+ pixelMarginRightVal = divStyle.marginRight === "4px";
+
+ documentElement.removeChild( container );
+
+ // Nullify the div so it wouldn't be stored in the memory and
+ // it will also be a sign that checks already performed
+ div = null;
+ }
+
+ var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
+ container = document.createElement( "div" ),
+ div = document.createElement( "div" );
+
+ // Finish early in limited (non-browser) environments
+ if ( !div.style ) {
+ return;
+ }
+
+ // Support: IE <=9 - 11 only
+ // Style of cloned element affects source element cloned (#8908)
+ div.style.backgroundClip = "content-box";
+ div.cloneNode( true ).style.backgroundClip = "";
+ support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+ container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
+ "padding:0;margin-top:1px;position:absolute";
+ container.appendChild( div );
+
+ jQuery.extend( support, {
+ pixelPosition: function() {
+ computeStyleTests();
+ return pixelPositionVal;
+ },
+ boxSizingReliable: function() {
+ computeStyleTests();
+ return boxSizingReliableVal;
+ },
+ pixelMarginRight: function() {
+ computeStyleTests();
+ return pixelMarginRightVal;
+ },
+ reliableMarginLeft: function() {
+ computeStyleTests();
+ return reliableMarginLeftVal;
+ }
+ } );
+} )();
+
+
+function curCSS( elem, name, computed ) {
+ var width, minWidth, maxWidth, ret,
+
+ // Support: Firefox 51+
+ // Retrieving style before computed somehow
+ // fixes an issue with getting wrong values
+ // on detached elements
+ style = elem.style;
+
+ computed = computed || getStyles( elem );
+
+ // getPropertyValue is needed for:
+ // .css('filter') (IE 9 only, #12537)
+ // .css('--customProperty) (#3144)
+ if ( computed ) {
+ ret = computed.getPropertyValue( name ) || computed[ name ];
+
+ if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+ ret = jQuery.style( elem, name );
+ }
+
+ // A tribute to the "awesome hack by Dean Edwards"
+ // Android Browser returns percentage for some values,
+ // but width seems to be reliably pixels.
+ // This is against the CSSOM draft spec:
+ // https://drafts.csswg.org/cssom/#resolved-values
+ if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
+
+ // Remember the original values
+ width = style.width;
+ minWidth = style.minWidth;
+ maxWidth = style.maxWidth;
+
+ // Put in the new values to get a computed value out
+ style.minWidth = style.maxWidth = style.width = ret;
+ ret = computed.width;
+
+ // Revert the changed values
+ style.width = width;
+ style.minWidth = minWidth;
+ style.maxWidth = maxWidth;
+ }
+ }
+
+ return ret !== undefined ?
+
+ // Support: IE <=9 - 11 only
+ // IE returns zIndex value as an integer.
+ ret + "" :
+ ret;
+}
+
+
+function addGetHookIf( conditionFn, hookFn ) {
+
+ // Define the hook, we'll check on the first run if it's really needed.
+ return {
+ get: function() {
+ if ( conditionFn() ) {
+
+ // Hook not needed (or it's not possible to use it due
+ // to missing dependency), remove it.
+ delete this.get;
+ return;
+ }
+
+ // Hook needed; redefine it so that the support test is not executed again.
+ return ( this.get = hookFn ).apply( this, arguments );
+ }
+ };
+}
+
+
+var
+
+ // Swappable if display is none or starts with table
+ // except "table", "table-cell", or "table-caption"
+ // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+ rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+ rcustomProp = /^--/,
+ cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+ cssNormalTransform = {
+ letterSpacing: "0",
+ fontWeight: "400"
+ },
+
+ cssPrefixes = [ "Webkit", "Moz", "ms" ],
+ emptyStyle = document.createElement( "div" ).style;
+
+// Return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( name ) {
+
+ // Shortcut for names that are not vendor prefixed
+ if ( name in emptyStyle ) {
+ return name;
+ }
+
+ // Check for vendor prefixed names
+ var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
+ i = cssPrefixes.length;
+
+ while ( i-- ) {
+ name = cssPrefixes[ i ] + capName;
+ if ( name in emptyStyle ) {
+ return name;
+ }
+ }
+}
+
+// Return a property mapped along what jQuery.cssProps suggests or to
+// a vendor prefixed property.
+function finalPropName( name ) {
+ var ret = jQuery.cssProps[ name ];
+ if ( !ret ) {
+ ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
+ }
+ return ret;
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+
+ // Any relative (+/-) values have already been
+ // normalized at this point
+ var matches = rcssNum.exec( value );
+ return matches ?
+
+ // Guard against undefined "subtract", e.g., when used as in cssHooks
+ Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
+ value;
+}
+
+function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
+ var i,
+ val = 0;
+
+ // If we already have the right measurement, avoid augmentation
+ if ( extra === ( isBorderBox ? "border" : "content" ) ) {
+ i = 4;
+
+ // Otherwise initialize for horizontal or vertical properties
+ } else {
+ i = name === "width" ? 1 : 0;
+ }
+
+ for ( ; i < 4; i += 2 ) {
+
+ // Both box models exclude margin, so add it if we want it
+ if ( extra === "margin" ) {
+ val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
+ }
+
+ if ( isBorderBox ) {
+
+ // border-box includes padding, so remove it if we want content
+ if ( extra === "content" ) {
+ val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+ }
+
+ // At this point, extra isn't border nor margin, so remove border
+ if ( extra !== "margin" ) {
+ val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ } else {
+
+ // At this point, extra isn't content, so add padding
+ val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+ // At this point, extra isn't content nor padding, so add border
+ if ( extra !== "padding" ) {
+ val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+ }
+ }
+ }
+
+ return val;
+}
+
+function getWidthOrHeight( elem, name, extra ) {
+
+ // Start with computed style
+ var valueIsBorderBox,
+ styles = getStyles( elem ),
+ val = curCSS( elem, name, styles ),
+ isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
+
+ // Computed unit is not pixels. Stop here and return.
+ if ( rnumnonpx.test( val ) ) {
+ return val;
+ }
+
+ // Check for style in case a browser which returns unreliable values
+ // for getComputedStyle silently falls back to the reliable elem.style
+ valueIsBorderBox = isBorderBox &&
+ ( support.boxSizingReliable() || val === elem.style[ name ] );
+
+ // Fall back to offsetWidth/Height when value is "auto"
+ // This happens for inline elements with no explicit setting (gh-3571)
+ if ( val === "auto" ) {
+ val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ];
+ }
+
+ // Normalize "", auto, and prepare for extra
+ val = parseFloat( val ) || 0;
+
+ // Use the active box-sizing model to add/subtract irrelevant styles
+ return ( val +
+ augmentWidthOrHeight(
+ elem,
+ name,
+ extra || ( isBorderBox ? "border" : "content" ),
+ valueIsBorderBox,
+ styles
+ )
+ ) + "px";
+}
+
+jQuery.extend( {
+
+ // Add in style property hooks for overriding the default
+ // behavior of getting and setting a style property
+ cssHooks: {
+ opacity: {
+ get: function( elem, computed ) {
+ if ( computed ) {
+
+ // We should always get a number back from opacity
+ var ret = curCSS( elem, "opacity" );
+ return ret === "" ? "1" : ret;
+ }
+ }
+ }
+ },
+
+ // Don't automatically add "px" to these possibly-unitless properties
+ cssNumber: {
+ "animationIterationCount": true,
+ "columnCount": true,
+ "fillOpacity": true,
+ "flexGrow": true,
+ "flexShrink": true,
+ "fontWeight": true,
+ "lineHeight": true,
+ "opacity": true,
+ "order": true,
+ "orphans": true,
+ "widows": true,
+ "zIndex": true,
+ "zoom": true
+ },
+
+ // Add in properties whose names you wish to fix before
+ // setting or getting the value
+ cssProps: {
+ "float": "cssFloat"
+ },
+
+ // Get and set the style property on a DOM Node
+ style: function( elem, name, value, extra ) {
+
+ // Don't set styles on text and comment nodes
+ if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+ return;
+ }
+
+ // Make sure that we're working with the right name
+ var ret, type, hooks,
+ origName = jQuery.camelCase( name ),
+ isCustomProp = rcustomProp.test( name ),
+ style = elem.style;
+
+ // Make sure that we're working with the right name. We don't
+ // want to query the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Gets hook for the prefixed version, then unprefixed version
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // Check if we're setting a value
+ if ( value !== undefined ) {
+ type = typeof value;
+
+ // Convert "+=" or "-=" to relative numbers (#7345)
+ if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
+ value = adjustCSS( elem, name, ret );
+
+ // Fixes bug #9237
+ type = "number";
+ }
+
+ // Make sure that null and NaN values aren't set (#7116)
+ if ( value == null || value !== value ) {
+ return;
+ }
+
+ // If a number was passed in, add the unit (except for certain CSS properties)
+ if ( type === "number" ) {
+ value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
+ }
+
+ // background-* props affect original clone's values
+ if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
+ style[ name ] = "inherit";
+ }
+
+ // If a hook was provided, use that value, otherwise just set the specified value
+ if ( !hooks || !( "set" in hooks ) ||
+ ( value = hooks.set( elem, value, extra ) ) !== undefined ) {
+
+ if ( isCustomProp ) {
+ style.setProperty( name, value );
+ } else {
+ style[ name ] = value;
+ }
+ }
+
+ } else {
+
+ // If a hook was provided get the non-computed value from there
+ if ( hooks && "get" in hooks &&
+ ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
+
+ return ret;
+ }
+
+ // Otherwise just get the value from the style object
+ return style[ name ];
+ }
+ },
+
+ css: function( elem, name, extra, styles ) {
+ var val, num, hooks,
+ origName = jQuery.camelCase( name ),
+ isCustomProp = rcustomProp.test( name );
+
+ // Make sure that we're working with the right name. We don't
+ // want to modify the value if it is a CSS custom property
+ // since they are user-defined.
+ if ( !isCustomProp ) {
+ name = finalPropName( origName );
+ }
+
+ // Try prefixed name followed by the unprefixed name
+ hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+ // If a hook was provided get the computed value from there
+ if ( hooks && "get" in hooks ) {
+ val = hooks.get( elem, true, extra );
+ }
+
+ // Otherwise, if a way to get the computed value exists, use that
+ if ( val === undefined ) {
+ val = curCSS( elem, name, styles );
+ }
+
+ // Convert "normal" to computed value
+ if ( val === "normal" && name in cssNormalTransform ) {
+ val = cssNormalTransform[ name ];
+ }
+
+ // Make numeric if forced or a qualifier was provided and val looks numeric
+ if ( extra === "" || extra ) {
+ num = parseFloat( val );
+ return extra === true || isFinite( num ) ? num || 0 : val;
+ }
+
+ return val;
+ }
+} );
+
+jQuery.each( [ "height", "width" ], function( i, name ) {
+ jQuery.cssHooks[ name ] = {
+ get: function( elem, computed, extra ) {
+ if ( computed ) {
+
+ // Certain elements can have dimension info if we invisibly show them
+ // but it must have a current display style that would benefit
+ return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
+
+ // Support: Safari 8+
+ // Table columns in Safari have non-zero offsetWidth & zero
+ // getBoundingClientRect().width unless display is changed.
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a disconnected node
+ // in IE throws an error.
+ ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
+ swap( elem, cssShow, function() {
+ return getWidthOrHeight( elem, name, extra );
+ } ) :
+ getWidthOrHeight( elem, name, extra );
+ }
+ },
+
+ set: function( elem, value, extra ) {
+ var matches,
+ styles = extra && getStyles( elem ),
+ subtract = extra && augmentWidthOrHeight(
+ elem,
+ name,
+ extra,
+ jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+ styles
+ );
+
+ // Convert to pixels if value adjustment is needed
+ if ( subtract && ( matches = rcssNum.exec( value ) ) &&
+ ( matches[ 3 ] || "px" ) !== "px" ) {
+
+ elem.style[ name ] = value;
+ value = jQuery.css( elem, name );
+ }
+
+ return setPositiveNumber( elem, value, subtract );
+ }
+ };
+} );
+
+jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
+ function( elem, computed ) {
+ if ( computed ) {
+ return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
+ elem.getBoundingClientRect().left -
+ swap( elem, { marginLeft: 0 }, function() {
+ return elem.getBoundingClientRect().left;
+ } )
+ ) + "px";
+ }
+ }
+);
+
+// These hooks are used by animate to expand properties
+jQuery.each( {
+ margin: "",
+ padding: "",
+ border: "Width"
+}, function( prefix, suffix ) {
+ jQuery.cssHooks[ prefix + suffix ] = {
+ expand: function( value ) {
+ var i = 0,
+ expanded = {},
+
+ // Assumes a single number if not a string
+ parts = typeof value === "string" ? value.split( " " ) : [ value ];
+
+ for ( ; i < 4; i++ ) {
+ expanded[ prefix + cssExpand[ i ] + suffix ] =
+ parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+ }
+
+ return expanded;
+ }
+ };
+
+ if ( !rmargin.test( prefix ) ) {
+ jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+ }
+} );
+
+jQuery.fn.extend( {
+ css: function( name, value ) {
+ return access( this, function( elem, name, value ) {
+ var styles, len,
+ map = {},
+ i = 0;
+
+ if ( Array.isArray( name ) ) {
+ styles = getStyles( elem );
+ len = name.length;
+
+ for ( ; i < len; i++ ) {
+ map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+ }
+
+ return map;
+ }
+
+ return value !== undefined ?
+ jQuery.style( elem, name, value ) :
+ jQuery.css( elem, name );
+ }, name, value, arguments.length > 1 );
+ }
+} );
+
+
+function Tween( elem, options, prop, end, easing ) {
+ return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+ constructor: Tween,
+ init: function( elem, options, prop, end, easing, unit ) {
+ this.elem = elem;
+ this.prop = prop;
+ this.easing = easing || jQuery.easing._default;
+ this.options = options;
+ this.start = this.now = this.cur();
+ this.end = end;
+ this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+ },
+ cur: function() {
+ var hooks = Tween.propHooks[ this.prop ];
+
+ return hooks && hooks.get ?
+ hooks.get( this ) :
+ Tween.propHooks._default.get( this );
+ },
+ run: function( percent ) {
+ var eased,
+ hooks = Tween.propHooks[ this.prop ];
+
+ if ( this.options.duration ) {
+ this.pos = eased = jQuery.easing[ this.easing ](
+ percent, this.options.duration * percent, 0, 1, this.options.duration
+ );
+ } else {
+ this.pos = eased = percent;
+ }
+ this.now = ( this.end - this.start ) * eased + this.start;
+
+ if ( this.options.step ) {
+ this.options.step.call( this.elem, this.now, this );
+ }
+
+ if ( hooks && hooks.set ) {
+ hooks.set( this );
+ } else {
+ Tween.propHooks._default.set( this );
+ }
+ return this;
+ }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+ _default: {
+ get: function( tween ) {
+ var result;
+
+ // Use a property on the element directly when it is not a DOM element,
+ // or when there is no matching style property that exists.
+ if ( tween.elem.nodeType !== 1 ||
+ tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
+ return tween.elem[ tween.prop ];
+ }
+
+ // Passing an empty string as a 3rd parameter to .css will automatically
+ // attempt a parseFloat and fallback to a string if the parse fails.
+ // Simple values such as "10px" are parsed to Float;
+ // complex values such as "rotate(1rad)" are returned as-is.
+ result = jQuery.css( tween.elem, tween.prop, "" );
+
+ // Empty strings, null, undefined and "auto" are converted to 0.
+ return !result || result === "auto" ? 0 : result;
+ },
+ set: function( tween ) {
+
+ // Use step hook for back compat.
+ // Use cssHook if its there.
+ // Use .style if available and use plain properties where available.
+ if ( jQuery.fx.step[ tween.prop ] ) {
+ jQuery.fx.step[ tween.prop ]( tween );
+ } else if ( tween.elem.nodeType === 1 &&
+ ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
+ jQuery.cssHooks[ tween.prop ] ) ) {
+ jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+ } else {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+ }
+};
+
+// Support: IE <=9 only
+// Panic based approach to setting things on disconnected nodes
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+ set: function( tween ) {
+ if ( tween.elem.nodeType && tween.elem.parentNode ) {
+ tween.elem[ tween.prop ] = tween.now;
+ }
+ }
+};
+
+jQuery.easing = {
+ linear: function( p ) {
+ return p;
+ },
+ swing: function( p ) {
+ return 0.5 - Math.cos( p * Math.PI ) / 2;
+ },
+ _default: "swing"
+};
+
+jQuery.fx = Tween.prototype.init;
+
+// Back compat <1.8 extension point
+jQuery.fx.step = {};
+
+
+
+
+var
+ fxNow, inProgress,
+ rfxtypes = /^(?:toggle|show|hide)$/,
+ rrun = /queueHooks$/;
+
+function schedule() {
+ if ( inProgress ) {
+ if ( document.hidden === false && window.requestAnimationFrame ) {
+ window.requestAnimationFrame( schedule );
+ } else {
+ window.setTimeout( schedule, jQuery.fx.interval );
+ }
+
+ jQuery.fx.tick();
+ }
+}
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+ window.setTimeout( function() {
+ fxNow = undefined;
+ } );
+ return ( fxNow = jQuery.now() );
+}
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+ var which,
+ i = 0,
+ attrs = { height: type };
+
+ // If we include width, step value is 1 to do all cssExpand values,
+ // otherwise step value is 2 to skip over Left and Right
+ includeWidth = includeWidth ? 1 : 0;
+ for ( ; i < 4; i += 2 - includeWidth ) {
+ which = cssExpand[ i ];
+ attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+ }
+
+ if ( includeWidth ) {
+ attrs.opacity = attrs.width = type;
+ }
+
+ return attrs;
+}
+
+function createTween( value, prop, animation ) {
+ var tween,
+ collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
+ index = 0,
+ length = collection.length;
+ for ( ; index < length; index++ ) {
+ if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
+
+ // We're done with this property
+ return tween;
+ }
+ }
+}
+
+function defaultPrefilter( elem, props, opts ) {
+ var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
+ isBox = "width" in props || "height" in props,
+ anim = this,
+ orig = {},
+ style = elem.style,
+ hidden = elem.nodeType && isHiddenWithinTree( elem ),
+ dataShow = dataPriv.get( elem, "fxshow" );
+
+ // Queue-skipping animations hijack the fx hooks
+ if ( !opts.queue ) {
+ hooks = jQuery._queueHooks( elem, "fx" );
+ if ( hooks.unqueued == null ) {
+ hooks.unqueued = 0;
+ oldfire = hooks.empty.fire;
+ hooks.empty.fire = function() {
+ if ( !hooks.unqueued ) {
+ oldfire();
+ }
+ };
+ }
+ hooks.unqueued++;
+
+ anim.always( function() {
+
+ // Ensure the complete handler is called before this completes
+ anim.always( function() {
+ hooks.unqueued--;
+ if ( !jQuery.queue( elem, "fx" ).length ) {
+ hooks.empty.fire();
+ }
+ } );
+ } );
+ }
+
+ // Detect show/hide animations
+ for ( prop in props ) {
+ value = props[ prop ];
+ if ( rfxtypes.test( value ) ) {
+ delete props[ prop ];
+ toggle = toggle || value === "toggle";
+ if ( value === ( hidden ? "hide" : "show" ) ) {
+
+ // Pretend to be hidden if this is a "show" and
+ // there is still data from a stopped show/hide
+ if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
+ hidden = true;
+
+ // Ignore all other no-op show/hide data
+ } else {
+ continue;
+ }
+ }
+ orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
+ }
+ }
+
+ // Bail out if this is a no-op like .hide().hide()
+ propTween = !jQuery.isEmptyObject( props );
+ if ( !propTween && jQuery.isEmptyObject( orig ) ) {
+ return;
+ }
+
+ // Restrict "overflow" and "display" styles during box animations
+ if ( isBox && elem.nodeType === 1 ) {
+
+ // Support: IE <=9 - 11, Edge 12 - 13
+ // Record all 3 overflow attributes because IE does not infer the shorthand
+ // from identically-valued overflowX and overflowY
+ opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+ // Identify a display type, preferring old show/hide data over the CSS cascade
+ restoreDisplay = dataShow && dataShow.display;
+ if ( restoreDisplay == null ) {
+ restoreDisplay = dataPriv.get( elem, "display" );
+ }
+ display = jQuery.css( elem, "display" );
+ if ( display === "none" ) {
+ if ( restoreDisplay ) {
+ display = restoreDisplay;
+ } else {
+
+ // Get nonempty value(s) by temporarily forcing visibility
+ showHide( [ elem ], true );
+ restoreDisplay = elem.style.display || restoreDisplay;
+ display = jQuery.css( elem, "display" );
+ showHide( [ elem ] );
+ }
+ }
+
+ // Animate inline elements as inline-block
+ if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
+ if ( jQuery.css( elem, "float" ) === "none" ) {
+
+ // Restore the original display value at the end of pure show/hide animations
+ if ( !propTween ) {
+ anim.done( function() {
+ style.display = restoreDisplay;
+ } );
+ if ( restoreDisplay == null ) {
+ display = style.display;
+ restoreDisplay = display === "none" ? "" : display;
+ }
+ }
+ style.display = "inline-block";
+ }
+ }
+ }
+
+ if ( opts.overflow ) {
+ style.overflow = "hidden";
+ anim.always( function() {
+ style.overflow = opts.overflow[ 0 ];
+ style.overflowX = opts.overflow[ 1 ];
+ style.overflowY = opts.overflow[ 2 ];
+ } );
+ }
+
+ // Implement show/hide animations
+ propTween = false;
+ for ( prop in orig ) {
+
+ // General show/hide setup for this element animation
+ if ( !propTween ) {
+ if ( dataShow ) {
+ if ( "hidden" in dataShow ) {
+ hidden = dataShow.hidden;
+ }
+ } else {
+ dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
+ }
+
+ // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
+ if ( toggle ) {
+ dataShow.hidden = !hidden;
+ }
+
+ // Show elements before animating them
+ if ( hidden ) {
+ showHide( [ elem ], true );
+ }
+
+ /* eslint-disable no-loop-func */
+
+ anim.done( function() {
+
+ /* eslint-enable no-loop-func */
+
+ // The final step of a "hide" animation is actually hiding the element
+ if ( !hidden ) {
+ showHide( [ elem ] );
+ }
+ dataPriv.remove( elem, "fxshow" );
+ for ( prop in orig ) {
+ jQuery.style( elem, prop, orig[ prop ] );
+ }
+ } );
+ }
+
+ // Per-property setup
+ propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
+ if ( !( prop in dataShow ) ) {
+ dataShow[ prop ] = propTween.start;
+ if ( hidden ) {
+ propTween.end = propTween.start;
+ propTween.start = 0;
+ }
+ }
+ }
+}
+
+function propFilter( props, specialEasing ) {
+ var index, name, easing, value, hooks;
+
+ // camelCase, specialEasing and expand cssHook pass
+ for ( index in props ) {
+ name = jQuery.camelCase( index );
+ easing = specialEasing[ name ];
+ value = props[ index ];
+ if ( Array.isArray( value ) ) {
+ easing = value[ 1 ];
+ value = props[ index ] = value[ 0 ];
+ }
+
+ if ( index !== name ) {
+ props[ name ] = value;
+ delete props[ index ];
+ }
+
+ hooks = jQuery.cssHooks[ name ];
+ if ( hooks && "expand" in hooks ) {
+ value = hooks.expand( value );
+ delete props[ name ];
+
+ // Not quite $.extend, this won't overwrite existing keys.
+ // Reusing 'index' because we have the correct "name"
+ for ( index in value ) {
+ if ( !( index in props ) ) {
+ props[ index ] = value[ index ];
+ specialEasing[ index ] = easing;
+ }
+ }
+ } else {
+ specialEasing[ name ] = easing;
+ }
+ }
+}
+
+function Animation( elem, properties, options ) {
+ var result,
+ stopped,
+ index = 0,
+ length = Animation.prefilters.length,
+ deferred = jQuery.Deferred().always( function() {
+
+ // Don't match elem in the :animated selector
+ delete tick.elem;
+ } ),
+ tick = function() {
+ if ( stopped ) {
+ return false;
+ }
+ var currentTime = fxNow || createFxNow(),
+ remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+
+ // Support: Android 2.3 only
+ // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
+ temp = remaining / animation.duration || 0,
+ percent = 1 - temp,
+ index = 0,
+ length = animation.tweens.length;
+
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( percent );
+ }
+
+ deferred.notifyWith( elem, [ animation, percent, remaining ] );
+
+ // If there's more to do, yield
+ if ( percent < 1 && length ) {
+ return remaining;
+ }
+
+ // If this was an empty animation, synthesize a final progress notification
+ if ( !length ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ }
+
+ // Resolve the animation and report its conclusion
+ deferred.resolveWith( elem, [ animation ] );
+ return false;
+ },
+ animation = deferred.promise( {
+ elem: elem,
+ props: jQuery.extend( {}, properties ),
+ opts: jQuery.extend( true, {
+ specialEasing: {},
+ easing: jQuery.easing._default
+ }, options ),
+ originalProperties: properties,
+ originalOptions: options,
+ startTime: fxNow || createFxNow(),
+ duration: options.duration,
+ tweens: [],
+ createTween: function( prop, end ) {
+ var tween = jQuery.Tween( elem, animation.opts, prop, end,
+ animation.opts.specialEasing[ prop ] || animation.opts.easing );
+ animation.tweens.push( tween );
+ return tween;
+ },
+ stop: function( gotoEnd ) {
+ var index = 0,
+
+ // If we are going to the end, we want to run all the tweens
+ // otherwise we skip this part
+ length = gotoEnd ? animation.tweens.length : 0;
+ if ( stopped ) {
+ return this;
+ }
+ stopped = true;
+ for ( ; index < length; index++ ) {
+ animation.tweens[ index ].run( 1 );
+ }
+
+ // Resolve when we played the last frame; otherwise, reject
+ if ( gotoEnd ) {
+ deferred.notifyWith( elem, [ animation, 1, 0 ] );
+ deferred.resolveWith( elem, [ animation, gotoEnd ] );
+ } else {
+ deferred.rejectWith( elem, [ animation, gotoEnd ] );
+ }
+ return this;
+ }
+ } ),
+ props = animation.props;
+
+ propFilter( props, animation.opts.specialEasing );
+
+ for ( ; index < length; index++ ) {
+ result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
+ if ( result ) {
+ if ( jQuery.isFunction( result.stop ) ) {
+ jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
+ jQuery.proxy( result.stop, result );
+ }
+ return result;
+ }
+ }
+
+ jQuery.map( props, createTween, animation );
+
+ if ( jQuery.isFunction( animation.opts.start ) ) {
+ animation.opts.start.call( elem, animation );
+ }
+
+ // Attach callbacks from options
+ animation
+ .progress( animation.opts.progress )
+ .done( animation.opts.done, animation.opts.complete )
+ .fail( animation.opts.fail )
+ .always( animation.opts.always );
+
+ jQuery.fx.timer(
+ jQuery.extend( tick, {
+ elem: elem,
+ anim: animation,
+ queue: animation.opts.queue
+ } )
+ );
+
+ return animation;
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+ tweeners: {
+ "*": [ function( prop, value ) {
+ var tween = this.createTween( prop, value );
+ adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
+ return tween;
+ } ]
+ },
+
+ tweener: function( props, callback ) {
+ if ( jQuery.isFunction( props ) ) {
+ callback = props;
+ props = [ "*" ];
+ } else {
+ props = props.match( rnothtmlwhite );
+ }
+
+ var prop,
+ index = 0,
+ length = props.length;
+
+ for ( ; index < length; index++ ) {
+ prop = props[ index ];
+ Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
+ Animation.tweeners[ prop ].unshift( callback );
+ }
+ },
+
+ prefilters: [ defaultPrefilter ],
+
+ prefilter: function( callback, prepend ) {
+ if ( prepend ) {
+ Animation.prefilters.unshift( callback );
+ } else {
+ Animation.prefilters.push( callback );
+ }
+ }
+} );
+
+jQuery.speed = function( speed, easing, fn ) {
+ var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+ complete: fn || !fn && easing ||
+ jQuery.isFunction( speed ) && speed,
+ duration: speed,
+ easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
+ };
+
+ // Go to the end state if fx are off
+ if ( jQuery.fx.off ) {
+ opt.duration = 0;
+
+ } else {
+ if ( typeof opt.duration !== "number" ) {
+ if ( opt.duration in jQuery.fx.speeds ) {
+ opt.duration = jQuery.fx.speeds[ opt.duration ];
+
+ } else {
+ opt.duration = jQuery.fx.speeds._default;
+ }
+ }
+ }
+
+ // Normalize opt.queue - true/undefined/null -> "fx"
+ if ( opt.queue == null || opt.queue === true ) {
+ opt.queue = "fx";
+ }
+
+ // Queueing
+ opt.old = opt.complete;
+
+ opt.complete = function() {
+ if ( jQuery.isFunction( opt.old ) ) {
+ opt.old.call( this );
+ }
+
+ if ( opt.queue ) {
+ jQuery.dequeue( this, opt.queue );
+ }
+ };
+
+ return opt;
+};
+
+jQuery.fn.extend( {
+ fadeTo: function( speed, to, easing, callback ) {
+
+ // Show any hidden elements after setting opacity to 0
+ return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
+
+ // Animate to the value specified
+ .end().animate( { opacity: to }, speed, easing, callback );
+ },
+ animate: function( prop, speed, easing, callback ) {
+ var empty = jQuery.isEmptyObject( prop ),
+ optall = jQuery.speed( speed, easing, callback ),
+ doAnimation = function() {
+
+ // Operate on a copy of prop so per-property easing won't be lost
+ var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+
+ // Empty animations, or finishing resolves immediately
+ if ( empty || dataPriv.get( this, "finish" ) ) {
+ anim.stop( true );
+ }
+ };
+ doAnimation.finish = doAnimation;
+
+ return empty || optall.queue === false ?
+ this.each( doAnimation ) :
+ this.queue( optall.queue, doAnimation );
+ },
+ stop: function( type, clearQueue, gotoEnd ) {
+ var stopQueue = function( hooks ) {
+ var stop = hooks.stop;
+ delete hooks.stop;
+ stop( gotoEnd );
+ };
+
+ if ( typeof type !== "string" ) {
+ gotoEnd = clearQueue;
+ clearQueue = type;
+ type = undefined;
+ }
+ if ( clearQueue && type !== false ) {
+ this.queue( type || "fx", [] );
+ }
+
+ return this.each( function() {
+ var dequeue = true,
+ index = type != null && type + "queueHooks",
+ timers = jQuery.timers,
+ data = dataPriv.get( this );
+
+ if ( index ) {
+ if ( data[ index ] && data[ index ].stop ) {
+ stopQueue( data[ index ] );
+ }
+ } else {
+ for ( index in data ) {
+ if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+ stopQueue( data[ index ] );
+ }
+ }
+ }
+
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this &&
+ ( type == null || timers[ index ].queue === type ) ) {
+
+ timers[ index ].anim.stop( gotoEnd );
+ dequeue = false;
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Start the next in the queue if the last step wasn't forced.
+ // Timers currently will call their complete callbacks, which
+ // will dequeue but only if they were gotoEnd.
+ if ( dequeue || !gotoEnd ) {
+ jQuery.dequeue( this, type );
+ }
+ } );
+ },
+ finish: function( type ) {
+ if ( type !== false ) {
+ type = type || "fx";
+ }
+ return this.each( function() {
+ var index,
+ data = dataPriv.get( this ),
+ queue = data[ type + "queue" ],
+ hooks = data[ type + "queueHooks" ],
+ timers = jQuery.timers,
+ length = queue ? queue.length : 0;
+
+ // Enable finishing flag on private data
+ data.finish = true;
+
+ // Empty the queue first
+ jQuery.queue( this, type, [] );
+
+ if ( hooks && hooks.stop ) {
+ hooks.stop.call( this, true );
+ }
+
+ // Look for any active animations, and finish them
+ for ( index = timers.length; index--; ) {
+ if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+ timers[ index ].anim.stop( true );
+ timers.splice( index, 1 );
+ }
+ }
+
+ // Look for any animations in the old queue and finish them
+ for ( index = 0; index < length; index++ ) {
+ if ( queue[ index ] && queue[ index ].finish ) {
+ queue[ index ].finish.call( this );
+ }
+ }
+
+ // Turn off finishing flag
+ delete data.finish;
+ } );
+ }
+} );
+
+jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
+ var cssFn = jQuery.fn[ name ];
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return speed == null || typeof speed === "boolean" ?
+ cssFn.apply( this, arguments ) :
+ this.animate( genFx( name, true ), speed, easing, callback );
+ };
+} );
+
+// Generate shortcuts for custom animations
+jQuery.each( {
+ slideDown: genFx( "show" ),
+ slideUp: genFx( "hide" ),
+ slideToggle: genFx( "toggle" ),
+ fadeIn: { opacity: "show" },
+ fadeOut: { opacity: "hide" },
+ fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+ jQuery.fn[ name ] = function( speed, easing, callback ) {
+ return this.animate( props, speed, easing, callback );
+ };
+} );
+
+jQuery.timers = [];
+jQuery.fx.tick = function() {
+ var timer,
+ i = 0,
+ timers = jQuery.timers;
+
+ fxNow = jQuery.now();
+
+ for ( ; i < timers.length; i++ ) {
+ timer = timers[ i ];
+
+ // Run the timer and safely remove it when done (allowing for external removal)
+ if ( !timer() && timers[ i ] === timer ) {
+ timers.splice( i--, 1 );
+ }
+ }
+
+ if ( !timers.length ) {
+ jQuery.fx.stop();
+ }
+ fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+ jQuery.timers.push( timer );
+ jQuery.fx.start();
+};
+
+jQuery.fx.interval = 13;
+jQuery.fx.start = function() {
+ if ( inProgress ) {
+ return;
+ }
+
+ inProgress = true;
+ schedule();
+};
+
+jQuery.fx.stop = function() {
+ inProgress = null;
+};
+
+jQuery.fx.speeds = {
+ slow: 600,
+ fast: 200,
+
+ // Default speed
+ _default: 400
+};
+
+
+// Based off of the plugin by Clint Helfers, with permission.
+// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
+jQuery.fn.delay = function( time, type ) {
+ time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+ type = type || "fx";
+
+ return this.queue( type, function( next, hooks ) {
+ var timeout = window.setTimeout( next, time );
+ hooks.stop = function() {
+ window.clearTimeout( timeout );
+ };
+ } );
+};
+
+
+( function() {
+ var input = document.createElement( "input" ),
+ select = document.createElement( "select" ),
+ opt = select.appendChild( document.createElement( "option" ) );
+
+ input.type = "checkbox";
+
+ // Support: Android <=4.3 only
+ // Default value for a checkbox should be "on"
+ support.checkOn = input.value !== "";
+
+ // Support: IE <=11 only
+ // Must access selectedIndex to make default options select
+ support.optSelected = opt.selected;
+
+ // Support: IE <=11 only
+ // An input loses its value after becoming a radio
+ input = document.createElement( "input" );
+ input.value = "t";
+ input.type = "radio";
+ support.radioValue = input.value === "t";
+} )();
+
+
+var boolHook,
+ attrHandle = jQuery.expr.attrHandle;
+
+jQuery.fn.extend( {
+ attr: function( name, value ) {
+ return access( this, jQuery.attr, name, value, arguments.length > 1 );
+ },
+
+ removeAttr: function( name ) {
+ return this.each( function() {
+ jQuery.removeAttr( this, name );
+ } );
+ }
+} );
+
+jQuery.extend( {
+ attr: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set attributes on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ // Fallback to prop when attributes are not supported
+ if ( typeof elem.getAttribute === "undefined" ) {
+ return jQuery.prop( elem, name, value );
+ }
+
+ // Attribute hooks are determined by the lowercase version
+ // Grab necessary hook if one is defined
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+ hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
+ ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
+ }
+
+ if ( value !== undefined ) {
+ if ( value === null ) {
+ jQuery.removeAttr( elem, name );
+ return;
+ }
+
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ elem.setAttribute( name, value + "" );
+ return value;
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ ret = jQuery.find.attr( elem, name );
+
+ // Non-existent attributes return null, we normalize to undefined
+ return ret == null ? undefined : ret;
+ },
+
+ attrHooks: {
+ type: {
+ set: function( elem, value ) {
+ if ( !support.radioValue && value === "radio" &&
+ nodeName( elem, "input" ) ) {
+ var val = elem.value;
+ elem.setAttribute( "type", value );
+ if ( val ) {
+ elem.value = val;
+ }
+ return value;
+ }
+ }
+ }
+ },
+
+ removeAttr: function( elem, value ) {
+ var name,
+ i = 0,
+
+ // Attribute names can contain non-HTML whitespace characters
+ // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
+ attrNames = value && value.match( rnothtmlwhite );
+
+ if ( attrNames && elem.nodeType === 1 ) {
+ while ( ( name = attrNames[ i++ ] ) ) {
+ elem.removeAttribute( name );
+ }
+ }
+ }
+} );
+
+// Hooks for boolean attributes
+boolHook = {
+ set: function( elem, value, name ) {
+ if ( value === false ) {
+
+ // Remove boolean attributes when set to false
+ jQuery.removeAttr( elem, name );
+ } else {
+ elem.setAttribute( name, name );
+ }
+ return name;
+ }
+};
+
+jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
+ var getter = attrHandle[ name ] || jQuery.find.attr;
+
+ attrHandle[ name ] = function( elem, name, isXML ) {
+ var ret, handle,
+ lowercaseName = name.toLowerCase();
+
+ if ( !isXML ) {
+
+ // Avoid an infinite loop by temporarily removing this function from the getter
+ handle = attrHandle[ lowercaseName ];
+ attrHandle[ lowercaseName ] = ret;
+ ret = getter( elem, name, isXML ) != null ?
+ lowercaseName :
+ null;
+ attrHandle[ lowercaseName ] = handle;
+ }
+ return ret;
+ };
+} );
+
+
+
+
+var rfocusable = /^(?:input|select|textarea|button)$/i,
+ rclickable = /^(?:a|area)$/i;
+
+jQuery.fn.extend( {
+ prop: function( name, value ) {
+ return access( this, jQuery.prop, name, value, arguments.length > 1 );
+ },
+
+ removeProp: function( name ) {
+ return this.each( function() {
+ delete this[ jQuery.propFix[ name ] || name ];
+ } );
+ }
+} );
+
+jQuery.extend( {
+ prop: function( elem, name, value ) {
+ var ret, hooks,
+ nType = elem.nodeType;
+
+ // Don't get/set properties on text, comment and attribute nodes
+ if ( nType === 3 || nType === 8 || nType === 2 ) {
+ return;
+ }
+
+ if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
+
+ // Fix name and attach hooks
+ name = jQuery.propFix[ name ] || name;
+ hooks = jQuery.propHooks[ name ];
+ }
+
+ if ( value !== undefined ) {
+ if ( hooks && "set" in hooks &&
+ ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
+ return ret;
+ }
+
+ return ( elem[ name ] = value );
+ }
+
+ if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
+ return ret;
+ }
+
+ return elem[ name ];
+ },
+
+ propHooks: {
+ tabIndex: {
+ get: function( elem ) {
+
+ // Support: IE <=9 - 11 only
+ // elem.tabIndex doesn't always return the
+ // correct value when it hasn't been explicitly set
+ // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+ // Use proper attribute retrieval(#12072)
+ var tabindex = jQuery.find.attr( elem, "tabindex" );
+
+ if ( tabindex ) {
+ return parseInt( tabindex, 10 );
+ }
+
+ if (
+ rfocusable.test( elem.nodeName ) ||
+ rclickable.test( elem.nodeName ) &&
+ elem.href
+ ) {
+ return 0;
+ }
+
+ return -1;
+ }
+ }
+ },
+
+ propFix: {
+ "for": "htmlFor",
+ "class": "className"
+ }
+} );
+
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
+// eslint rule "no-unused-expressions" is disabled for this code
+// since it considers such accessions noop
+if ( !support.optSelected ) {
+ jQuery.propHooks.selected = {
+ get: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent && parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ return null;
+ },
+ set: function( elem ) {
+
+ /* eslint no-unused-expressions: "off" */
+
+ var parent = elem.parentNode;
+ if ( parent ) {
+ parent.selectedIndex;
+
+ if ( parent.parentNode ) {
+ parent.parentNode.selectedIndex;
+ }
+ }
+ }
+ };
+}
+
+jQuery.each( [
+ "tabIndex",
+ "readOnly",
+ "maxLength",
+ "cellSpacing",
+ "cellPadding",
+ "rowSpan",
+ "colSpan",
+ "useMap",
+ "frameBorder",
+ "contentEditable"
+], function() {
+ jQuery.propFix[ this.toLowerCase() ] = this;
+} );
+
+
+
+
+ // Strip and collapse whitespace according to HTML spec
+ // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace
+ function stripAndCollapse( value ) {
+ var tokens = value.match( rnothtmlwhite ) || [];
+ return tokens.join( " " );
+ }
+
+
+function getClass( elem ) {
+ return elem.getAttribute && elem.getAttribute( "class" ) || "";
+}
+
+jQuery.fn.extend( {
+ addClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ if ( typeof value === "string" && value ) {
+ classes = value.match( rnothtmlwhite ) || [];
+
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+ if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+ cur += clazz + " ";
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ removeClass: function( value ) {
+ var classes, elem, cur, curValue, clazz, j, finalValue,
+ i = 0;
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each( function( j ) {
+ jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
+ } );
+ }
+
+ if ( !arguments.length ) {
+ return this.attr( "class", "" );
+ }
+
+ if ( typeof value === "string" && value ) {
+ classes = value.match( rnothtmlwhite ) || [];
+
+ while ( ( elem = this[ i++ ] ) ) {
+ curValue = getClass( elem );
+
+ // This expression is here for better compressibility (see addClass)
+ cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
+
+ if ( cur ) {
+ j = 0;
+ while ( ( clazz = classes[ j++ ] ) ) {
+
+ // Remove *all* instances
+ while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
+ cur = cur.replace( " " + clazz + " ", " " );
+ }
+ }
+
+ // Only assign if different to avoid unneeded rendering.
+ finalValue = stripAndCollapse( cur );
+ if ( curValue !== finalValue ) {
+ elem.setAttribute( "class", finalValue );
+ }
+ }
+ }
+ }
+
+ return this;
+ },
+
+ toggleClass: function( value, stateVal ) {
+ var type = typeof value;
+
+ if ( typeof stateVal === "boolean" && type === "string" ) {
+ return stateVal ? this.addClass( value ) : this.removeClass( value );
+ }
+
+ if ( jQuery.isFunction( value ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).toggleClass(
+ value.call( this, i, getClass( this ), stateVal ),
+ stateVal
+ );
+ } );
+ }
+
+ return this.each( function() {
+ var className, i, self, classNames;
+
+ if ( type === "string" ) {
+
+ // Toggle individual class names
+ i = 0;
+ self = jQuery( this );
+ classNames = value.match( rnothtmlwhite ) || [];
+
+ while ( ( className = classNames[ i++ ] ) ) {
+
+ // Check each className given, space separated list
+ if ( self.hasClass( className ) ) {
+ self.removeClass( className );
+ } else {
+ self.addClass( className );
+ }
+ }
+
+ // Toggle whole class name
+ } else if ( value === undefined || type === "boolean" ) {
+ className = getClass( this );
+ if ( className ) {
+
+ // Store className if set
+ dataPriv.set( this, "__className__", className );
+ }
+
+ // If the element has a class name or if we're passed `false`,
+ // then remove the whole classname (if there was one, the above saved it).
+ // Otherwise bring back whatever was previously saved (if anything),
+ // falling back to the empty string if nothing was stored.
+ if ( this.setAttribute ) {
+ this.setAttribute( "class",
+ className || value === false ?
+ "" :
+ dataPriv.get( this, "__className__" ) || ""
+ );
+ }
+ }
+ } );
+ },
+
+ hasClass: function( selector ) {
+ var className, elem,
+ i = 0;
+
+ className = " " + selector + " ";
+ while ( ( elem = this[ i++ ] ) ) {
+ if ( elem.nodeType === 1 &&
+ ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+} );
+
+
+
+
+var rreturn = /\r/g;
+
+jQuery.fn.extend( {
+ val: function( value ) {
+ var hooks, ret, isFunction,
+ elem = this[ 0 ];
+
+ if ( !arguments.length ) {
+ if ( elem ) {
+ hooks = jQuery.valHooks[ elem.type ] ||
+ jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+ if ( hooks &&
+ "get" in hooks &&
+ ( ret = hooks.get( elem, "value" ) ) !== undefined
+ ) {
+ return ret;
+ }
+
+ ret = elem.value;
+
+ // Handle most common string cases
+ if ( typeof ret === "string" ) {
+ return ret.replace( rreturn, "" );
+ }
+
+ // Handle cases where value is null/undef or number
+ return ret == null ? "" : ret;
+ }
+
+ return;
+ }
+
+ isFunction = jQuery.isFunction( value );
+
+ return this.each( function( i ) {
+ var val;
+
+ if ( this.nodeType !== 1 ) {
+ return;
+ }
+
+ if ( isFunction ) {
+ val = value.call( this, i, jQuery( this ).val() );
+ } else {
+ val = value;
+ }
+
+ // Treat null/undefined as ""; convert numbers to string
+ if ( val == null ) {
+ val = "";
+
+ } else if ( typeof val === "number" ) {
+ val += "";
+
+ } else if ( Array.isArray( val ) ) {
+ val = jQuery.map( val, function( value ) {
+ return value == null ? "" : value + "";
+ } );
+ }
+
+ hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+ // If set returns undefined, fall back to normal setting
+ if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
+ this.value = val;
+ }
+ } );
+ }
+} );
+
+jQuery.extend( {
+ valHooks: {
+ option: {
+ get: function( elem ) {
+
+ var val = jQuery.find.attr( elem, "value" );
+ return val != null ?
+ val :
+
+ // Support: IE <=10 - 11 only
+ // option.text throws exceptions (#14686, #14858)
+ // Strip and collapse whitespace
+ // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+ stripAndCollapse( jQuery.text( elem ) );
+ }
+ },
+ select: {
+ get: function( elem ) {
+ var value, option, i,
+ options = elem.options,
+ index = elem.selectedIndex,
+ one = elem.type === "select-one",
+ values = one ? null : [],
+ max = one ? index + 1 : options.length;
+
+ if ( index < 0 ) {
+ i = max;
+
+ } else {
+ i = one ? index : 0;
+ }
+
+ // Loop through all the selected options
+ for ( ; i < max; i++ ) {
+ option = options[ i ];
+
+ // Support: IE <=9 only
+ // IE8-9 doesn't update selected after form reset (#2551)
+ if ( ( option.selected || i === index ) &&
+
+ // Don't return options that are disabled or in a disabled optgroup
+ !option.disabled &&
+ ( !option.parentNode.disabled ||
+ !nodeName( option.parentNode, "optgroup" ) ) ) {
+
+ // Get the specific value for the option
+ value = jQuery( option ).val();
+
+ // We don't need an array for one selects
+ if ( one ) {
+ return value;
+ }
+
+ // Multi-Selects return an array
+ values.push( value );
+ }
+ }
+
+ return values;
+ },
+
+ set: function( elem, value ) {
+ var optionSet, option,
+ options = elem.options,
+ values = jQuery.makeArray( value ),
+ i = options.length;
+
+ while ( i-- ) {
+ option = options[ i ];
+
+ /* eslint-disable no-cond-assign */
+
+ if ( option.selected =
+ jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+ ) {
+ optionSet = true;
+ }
+
+ /* eslint-enable no-cond-assign */
+ }
+
+ // Force browsers to behave consistently when non-matching value is set
+ if ( !optionSet ) {
+ elem.selectedIndex = -1;
+ }
+ return values;
+ }
+ }
+ }
+} );
+
+// Radios and checkboxes getter/setter
+jQuery.each( [ "radio", "checkbox" ], function() {
+ jQuery.valHooks[ this ] = {
+ set: function( elem, value ) {
+ if ( Array.isArray( value ) ) {
+ return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
+ }
+ }
+ };
+ if ( !support.checkOn ) {
+ jQuery.valHooks[ this ].get = function( elem ) {
+ return elem.getAttribute( "value" ) === null ? "on" : elem.value;
+ };
+ }
+} );
+
+
+
+
+// Return jQuery for attributes-only inclusion
+
+
+var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
+
+jQuery.extend( jQuery.event, {
+
+ trigger: function( event, data, elem, onlyHandlers ) {
+
+ var i, cur, tmp, bubbleType, ontype, handle, special,
+ eventPath = [ elem || document ],
+ type = hasOwn.call( event, "type" ) ? event.type : event,
+ namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
+
+ cur = tmp = elem = elem || document;
+
+ // Don't do events on text and comment nodes
+ if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+ return;
+ }
+
+ // focus/blur morphs to focusin/out; ensure we're not firing them right now
+ if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+ return;
+ }
+
+ if ( type.indexOf( "." ) > -1 ) {
+
+ // Namespaced trigger; create a regexp to match event type in handle()
+ namespaces = type.split( "." );
+ type = namespaces.shift();
+ namespaces.sort();
+ }
+ ontype = type.indexOf( ":" ) < 0 && "on" + type;
+
+ // Caller can pass in a jQuery.Event object, Object, or just an event type string
+ event = event[ jQuery.expando ] ?
+ event :
+ new jQuery.Event( type, typeof event === "object" && event );
+
+ // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
+ event.isTrigger = onlyHandlers ? 2 : 3;
+ event.namespace = namespaces.join( "." );
+ event.rnamespace = event.namespace ?
+ new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
+ null;
+
+ // Clean up the event in case it is being reused
+ event.result = undefined;
+ if ( !event.target ) {
+ event.target = elem;
+ }
+
+ // Clone any incoming data and prepend the event, creating the handler arg list
+ data = data == null ?
+ [ event ] :
+ jQuery.makeArray( data, [ event ] );
+
+ // Allow special events to draw outside the lines
+ special = jQuery.event.special[ type ] || {};
+ if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+ return;
+ }
+
+ // Determine event propagation path in advance, per W3C events spec (#9951)
+ // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+ if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
+
+ bubbleType = special.delegateType || type;
+ if ( !rfocusMorph.test( bubbleType + type ) ) {
+ cur = cur.parentNode;
+ }
+ for ( ; cur; cur = cur.parentNode ) {
+ eventPath.push( cur );
+ tmp = cur;
+ }
+
+ // Only add window if we got to document (e.g., not plain obj or detached DOM)
+ if ( tmp === ( elem.ownerDocument || document ) ) {
+ eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+ }
+ }
+
+ // Fire handlers on the event path
+ i = 0;
+ while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
+
+ event.type = i > 1 ?
+ bubbleType :
+ special.bindType || type;
+
+ // jQuery handler
+ handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
+ dataPriv.get( cur, "handle" );
+ if ( handle ) {
+ handle.apply( cur, data );
+ }
+
+ // Native handler
+ handle = ontype && cur[ ontype ];
+ if ( handle && handle.apply && acceptData( cur ) ) {
+ event.result = handle.apply( cur, data );
+ if ( event.result === false ) {
+ event.preventDefault();
+ }
+ }
+ }
+ event.type = type;
+
+ // If nobody prevented the default action, do it now
+ if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+ if ( ( !special._default ||
+ special._default.apply( eventPath.pop(), data ) === false ) &&
+ acceptData( elem ) ) {
+
+ // Call a native DOM method on the target with the same name as the event.
+ // Don't do default actions on window, that's where global variables be (#6170)
+ if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
+
+ // Don't re-trigger an onFOO event when we call its FOO() method
+ tmp = elem[ ontype ];
+
+ if ( tmp ) {
+ elem[ ontype ] = null;
+ }
+
+ // Prevent re-triggering of the same event, since we already bubbled it above
+ jQuery.event.triggered = type;
+ elem[ type ]();
+ jQuery.event.triggered = undefined;
+
+ if ( tmp ) {
+ elem[ ontype ] = tmp;
+ }
+ }
+ }
+ }
+
+ return event.result;
+ },
+
+ // Piggyback on a donor event to simulate a different one
+ // Used only for `focus(in | out)` events
+ simulate: function( type, elem, event ) {
+ var e = jQuery.extend(
+ new jQuery.Event(),
+ event,
+ {
+ type: type,
+ isSimulated: true
+ }
+ );
+
+ jQuery.event.trigger( e, null, elem );
+ }
+
+} );
+
+jQuery.fn.extend( {
+
+ trigger: function( type, data ) {
+ return this.each( function() {
+ jQuery.event.trigger( type, data, this );
+ } );
+ },
+ triggerHandler: function( type, data ) {
+ var elem = this[ 0 ];
+ if ( elem ) {
+ return jQuery.event.trigger( type, data, elem, true );
+ }
+ }
+} );
+
+
+jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
+ "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+ "change select submit keydown keypress keyup contextmenu" ).split( " " ),
+ function( i, name ) {
+
+ // Handle event binding
+ jQuery.fn[ name ] = function( data, fn ) {
+ return arguments.length > 0 ?
+ this.on( name, null, data, fn ) :
+ this.trigger( name );
+ };
+} );
+
+jQuery.fn.extend( {
+ hover: function( fnOver, fnOut ) {
+ return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+ }
+} );
+
+
+
+
+support.focusin = "onfocusin" in window;
+
+
+// Support: Firefox <=44
+// Firefox doesn't have focus(in | out) events
+// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
+//
+// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
+// focus(in | out) events fire after focus & blur events,
+// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
+// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
+if ( !support.focusin ) {
+ jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+ // Attach a single capturing handler on the document while someone wants focusin/focusout
+ var handler = function( event ) {
+ jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
+ };
+
+ jQuery.event.special[ fix ] = {
+ setup: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix );
+
+ if ( !attaches ) {
+ doc.addEventListener( orig, handler, true );
+ }
+ dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
+ },
+ teardown: function() {
+ var doc = this.ownerDocument || this,
+ attaches = dataPriv.access( doc, fix ) - 1;
+
+ if ( !attaches ) {
+ doc.removeEventListener( orig, handler, true );
+ dataPriv.remove( doc, fix );
+
+ } else {
+ dataPriv.access( doc, fix, attaches );
+ }
+ }
+ };
+ } );
+}
+var location = window.location;
+
+var nonce = jQuery.now();
+
+var rquery = ( /\?/ );
+
+
+
+// Cross-browser xml parsing
+jQuery.parseXML = function( data ) {
+ var xml;
+ if ( !data || typeof data !== "string" ) {
+ return null;
+ }
+
+ // Support: IE 9 - 11 only
+ // IE throws on parseFromString with invalid input.
+ try {
+ xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
+ } catch ( e ) {
+ xml = undefined;
+ }
+
+ if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
+ jQuery.error( "Invalid XML: " + data );
+ }
+ return xml;
+};
+
+
+var
+ rbracket = /\[\]$/,
+ rCRLF = /\r?\n/g,
+ rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
+ rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+function buildParams( prefix, obj, traditional, add ) {
+ var name;
+
+ if ( Array.isArray( obj ) ) {
+
+ // Serialize array item.
+ jQuery.each( obj, function( i, v ) {
+ if ( traditional || rbracket.test( prefix ) ) {
+
+ // Treat each array item as a scalar.
+ add( prefix, v );
+
+ } else {
+
+ // Item is non-scalar (array or object), encode its numeric index.
+ buildParams(
+ prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
+ v,
+ traditional,
+ add
+ );
+ }
+ } );
+
+ } else if ( !traditional && jQuery.type( obj ) === "object" ) {
+
+ // Serialize object item.
+ for ( name in obj ) {
+ buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+ }
+
+ } else {
+
+ // Serialize scalar item.
+ add( prefix, obj );
+ }
+}
+
+// Serialize an array of form elements or a set of
+// key/values into a query string
+jQuery.param = function( a, traditional ) {
+ var prefix,
+ s = [],
+ add = function( key, valueOrFunction ) {
+
+ // If value is a function, invoke it and use its return value
+ var value = jQuery.isFunction( valueOrFunction ) ?
+ valueOrFunction() :
+ valueOrFunction;
+
+ s[ s.length ] = encodeURIComponent( key ) + "=" +
+ encodeURIComponent( value == null ? "" : value );
+ };
+
+ // If an array was passed in, assume that it is an array of form elements.
+ if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+
+ // Serialize the form elements
+ jQuery.each( a, function() {
+ add( this.name, this.value );
+ } );
+
+ } else {
+
+ // If traditional, encode the "old" way (the way 1.3.2 or older
+ // did it), otherwise encode params recursively.
+ for ( prefix in a ) {
+ buildParams( prefix, a[ prefix ], traditional, add );
+ }
+ }
+
+ // Return the resulting serialization
+ return s.join( "&" );
+};
+
+jQuery.fn.extend( {
+ serialize: function() {
+ return jQuery.param( this.serializeArray() );
+ },
+ serializeArray: function() {
+ return this.map( function() {
+
+ // Can add propHook for "elements" to filter or add form elements
+ var elements = jQuery.prop( this, "elements" );
+ return elements ? jQuery.makeArray( elements ) : this;
+ } )
+ .filter( function() {
+ var type = this.type;
+
+ // Use .is( ":disabled" ) so that fieldset[disabled] works
+ return this.name && !jQuery( this ).is( ":disabled" ) &&
+ rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+ ( this.checked || !rcheckableType.test( type ) );
+ } )
+ .map( function( i, elem ) {
+ var val = jQuery( this ).val();
+
+ if ( val == null ) {
+ return null;
+ }
+
+ if ( Array.isArray( val ) ) {
+ return jQuery.map( val, function( val ) {
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } );
+ }
+
+ return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+ } ).get();
+ }
+} );
+
+
+var
+ r20 = /%20/g,
+ rhash = /#.*$/,
+ rantiCache = /([?&])_=[^&]*/,
+ rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
+
+ // #7653, #8125, #8152: local protocol detection
+ rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+ rnoContent = /^(?:GET|HEAD)$/,
+ rprotocol = /^\/\//,
+
+ /* Prefilters
+ * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+ * 2) These are called:
+ * - BEFORE asking for a transport
+ * - AFTER param serialization (s.data is a string if s.processData is true)
+ * 3) key is the dataType
+ * 4) the catchall symbol "*" can be used
+ * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+ */
+ prefilters = {},
+
+ /* Transports bindings
+ * 1) key is the dataType
+ * 2) the catchall symbol "*" can be used
+ * 3) selection will start with transport dataType and THEN go to "*" if needed
+ */
+ transports = {},
+
+ // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+ allTypes = "*/".concat( "*" ),
+
+ // Anchor tag for parsing the document origin
+ originAnchor = document.createElement( "a" );
+ originAnchor.href = location.href;
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+ // dataTypeExpression is optional and defaults to "*"
+ return function( dataTypeExpression, func ) {
+
+ if ( typeof dataTypeExpression !== "string" ) {
+ func = dataTypeExpression;
+ dataTypeExpression = "*";
+ }
+
+ var dataType,
+ i = 0,
+ dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];
+
+ if ( jQuery.isFunction( func ) ) {
+
+ // For each dataType in the dataTypeExpression
+ while ( ( dataType = dataTypes[ i++ ] ) ) {
+
+ // Prepend if requested
+ if ( dataType[ 0 ] === "+" ) {
+ dataType = dataType.slice( 1 ) || "*";
+ ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
+
+ // Otherwise append
+ } else {
+ ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
+ }
+ }
+ }
+ };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+ var inspected = {},
+ seekingTransport = ( structure === transports );
+
+ function inspect( dataType ) {
+ var selected;
+ inspected[ dataType ] = true;
+ jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+ var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+ if ( typeof dataTypeOrTransport === "string" &&
+ !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+
+ options.dataTypes.unshift( dataTypeOrTransport );
+ inspect( dataTypeOrTransport );
+ return false;
+ } else if ( seekingTransport ) {
+ return !( selected = dataTypeOrTransport );
+ }
+ } );
+ return selected;
+ }
+
+ return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+ var key, deep,
+ flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+ for ( key in src ) {
+ if ( src[ key ] !== undefined ) {
+ ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
+ }
+ }
+ if ( deep ) {
+ jQuery.extend( true, target, deep );
+ }
+
+ return target;
+}
+
+/* Handles responses to an ajax request:
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+ var ct, type, finalDataType, firstDataType,
+ contents = s.contents,
+ dataTypes = s.dataTypes;
+
+ // Remove auto dataType and get content-type in the process
+ while ( dataTypes[ 0 ] === "*" ) {
+ dataTypes.shift();
+ if ( ct === undefined ) {
+ ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
+ }
+ }
+
+ // Check if we're dealing with a known content-type
+ if ( ct ) {
+ for ( type in contents ) {
+ if ( contents[ type ] && contents[ type ].test( ct ) ) {
+ dataTypes.unshift( type );
+ break;
+ }
+ }
+ }
+
+ // Check to see if we have a response for the expected dataType
+ if ( dataTypes[ 0 ] in responses ) {
+ finalDataType = dataTypes[ 0 ];
+ } else {
+
+ // Try convertible dataTypes
+ for ( type in responses ) {
+ if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
+ finalDataType = type;
+ break;
+ }
+ if ( !firstDataType ) {
+ firstDataType = type;
+ }
+ }
+
+ // Or just use first one
+ finalDataType = finalDataType || firstDataType;
+ }
+
+ // If we found a dataType
+ // We add the dataType to the list if needed
+ // and return the corresponding response
+ if ( finalDataType ) {
+ if ( finalDataType !== dataTypes[ 0 ] ) {
+ dataTypes.unshift( finalDataType );
+ }
+ return responses[ finalDataType ];
+ }
+}
+
+/* Chain conversions given the request and the original response
+ * Also sets the responseXXX fields on the jqXHR instance
+ */
+function ajaxConvert( s, response, jqXHR, isSuccess ) {
+ var conv2, current, conv, tmp, prev,
+ converters = {},
+
+ // Work with a copy of dataTypes in case we need to modify it for conversion
+ dataTypes = s.dataTypes.slice();
+
+ // Create converters map with lowercased keys
+ if ( dataTypes[ 1 ] ) {
+ for ( conv in s.converters ) {
+ converters[ conv.toLowerCase() ] = s.converters[ conv ];
+ }
+ }
+
+ current = dataTypes.shift();
+
+ // Convert to each sequential dataType
+ while ( current ) {
+
+ if ( s.responseFields[ current ] ) {
+ jqXHR[ s.responseFields[ current ] ] = response;
+ }
+
+ // Apply the dataFilter if provided
+ if ( !prev && isSuccess && s.dataFilter ) {
+ response = s.dataFilter( response, s.dataType );
+ }
+
+ prev = current;
+ current = dataTypes.shift();
+
+ if ( current ) {
+
+ // There's only work to do if current dataType is non-auto
+ if ( current === "*" ) {
+
+ current = prev;
+
+ // Convert response if prev dataType is non-auto and differs from current
+ } else if ( prev !== "*" && prev !== current ) {
+
+ // Seek a direct converter
+ conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+ // If none found, seek a pair
+ if ( !conv ) {
+ for ( conv2 in converters ) {
+
+ // If conv2 outputs current
+ tmp = conv2.split( " " );
+ if ( tmp[ 1 ] === current ) {
+
+ // If prev can be converted to accepted input
+ conv = converters[ prev + " " + tmp[ 0 ] ] ||
+ converters[ "* " + tmp[ 0 ] ];
+ if ( conv ) {
+
+ // Condense equivalence converters
+ if ( conv === true ) {
+ conv = converters[ conv2 ];
+
+ // Otherwise, insert the intermediate dataType
+ } else if ( converters[ conv2 ] !== true ) {
+ current = tmp[ 0 ];
+ dataTypes.unshift( tmp[ 1 ] );
+ }
+ break;
+ }
+ }
+ }
+ }
+
+ // Apply converter (if not an equivalence)
+ if ( conv !== true ) {
+
+ // Unless errors are allowed to bubble, catch and return them
+ if ( conv && s.throws ) {
+ response = conv( response );
+ } else {
+ try {
+ response = conv( response );
+ } catch ( e ) {
+ return {
+ state: "parsererror",
+ error: conv ? e : "No conversion from " + prev + " to " + current
+ };
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return { state: "success", data: response };
+}
+
+jQuery.extend( {
+
+ // Counter for holding the number of active queries
+ active: 0,
+
+ // Last-Modified header cache for next request
+ lastModified: {},
+ etag: {},
+
+ ajaxSettings: {
+ url: location.href,
+ type: "GET",
+ isLocal: rlocalProtocol.test( location.protocol ),
+ global: true,
+ processData: true,
+ async: true,
+ contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+
+ /*
+ timeout: 0,
+ data: null,
+ dataType: null,
+ username: null,
+ password: null,
+ cache: null,
+ throws: false,
+ traditional: false,
+ headers: {},
+ */
+
+ accepts: {
+ "*": allTypes,
+ text: "text/plain",
+ html: "text/html",
+ xml: "application/xml, text/xml",
+ json: "application/json, text/javascript"
+ },
+
+ contents: {
+ xml: /\bxml\b/,
+ html: /\bhtml/,
+ json: /\bjson\b/
+ },
+
+ responseFields: {
+ xml: "responseXML",
+ text: "responseText",
+ json: "responseJSON"
+ },
+
+ // Data converters
+ // Keys separate source (or catchall "*") and destination types with a single space
+ converters: {
+
+ // Convert anything to text
+ "* text": String,
+
+ // Text to html (true = no transformation)
+ "text html": true,
+
+ // Evaluate text as a json expression
+ "text json": JSON.parse,
+
+ // Parse text as xml
+ "text xml": jQuery.parseXML
+ },
+
+ // For options that shouldn't be deep extended:
+ // you can add your own custom options here if
+ // and when you create one that shouldn't be
+ // deep extended (see ajaxExtend)
+ flatOptions: {
+ url: true,
+ context: true
+ }
+ },
+
+ // Creates a full fledged settings object into target
+ // with both ajaxSettings and settings fields.
+ // If target is omitted, writes into ajaxSettings.
+ ajaxSetup: function( target, settings ) {
+ return settings ?
+
+ // Building a settings object
+ ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+ // Extending ajaxSettings
+ ajaxExtend( jQuery.ajaxSettings, target );
+ },
+
+ ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+ ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+ // Main method
+ ajax: function( url, options ) {
+
+ // If url is an object, simulate pre-1.5 signature
+ if ( typeof url === "object" ) {
+ options = url;
+ url = undefined;
+ }
+
+ // Force options to be an object
+ options = options || {};
+
+ var transport,
+
+ // URL without anti-cache param
+ cacheURL,
+
+ // Response headers
+ responseHeadersString,
+ responseHeaders,
+
+ // timeout handle
+ timeoutTimer,
+
+ // Url cleanup var
+ urlAnchor,
+
+ // Request state (becomes false upon send and true upon completion)
+ completed,
+
+ // To know if global events are to be dispatched
+ fireGlobals,
+
+ // Loop variable
+ i,
+
+ // uncached part of the url
+ uncached,
+
+ // Create the final options object
+ s = jQuery.ajaxSetup( {}, options ),
+
+ // Callbacks context
+ callbackContext = s.context || s,
+
+ // Context for global events is callbackContext if it is a DOM node or jQuery collection
+ globalEventContext = s.context &&
+ ( callbackContext.nodeType || callbackContext.jquery ) ?
+ jQuery( callbackContext ) :
+ jQuery.event,
+
+ // Deferreds
+ deferred = jQuery.Deferred(),
+ completeDeferred = jQuery.Callbacks( "once memory" ),
+
+ // Status-dependent callbacks
+ statusCode = s.statusCode || {},
+
+ // Headers (they are sent all at once)
+ requestHeaders = {},
+ requestHeadersNames = {},
+
+ // Default abort message
+ strAbort = "canceled",
+
+ // Fake xhr
+ jqXHR = {
+ readyState: 0,
+
+ // Builds headers hashtable if needed
+ getResponseHeader: function( key ) {
+ var match;
+ if ( completed ) {
+ if ( !responseHeaders ) {
+ responseHeaders = {};
+ while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
+ responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
+ }
+ }
+ match = responseHeaders[ key.toLowerCase() ];
+ }
+ return match == null ? null : match;
+ },
+
+ // Raw string
+ getAllResponseHeaders: function() {
+ return completed ? responseHeadersString : null;
+ },
+
+ // Caches the header
+ setRequestHeader: function( name, value ) {
+ if ( completed == null ) {
+ name = requestHeadersNames[ name.toLowerCase() ] =
+ requestHeadersNames[ name.toLowerCase() ] || name;
+ requestHeaders[ name ] = value;
+ }
+ return this;
+ },
+
+ // Overrides response content-type header
+ overrideMimeType: function( type ) {
+ if ( completed == null ) {
+ s.mimeType = type;
+ }
+ return this;
+ },
+
+ // Status-dependent callbacks
+ statusCode: function( map ) {
+ var code;
+ if ( map ) {
+ if ( completed ) {
+
+ // Execute the appropriate callbacks
+ jqXHR.always( map[ jqXHR.status ] );
+ } else {
+
+ // Lazy-add the new callbacks in a way that preserves old ones
+ for ( code in map ) {
+ statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+ }
+ }
+ }
+ return this;
+ },
+
+ // Cancel the request
+ abort: function( statusText ) {
+ var finalText = statusText || strAbort;
+ if ( transport ) {
+ transport.abort( finalText );
+ }
+ done( 0, finalText );
+ return this;
+ }
+ };
+
+ // Attach deferreds
+ deferred.promise( jqXHR );
+
+ // Add protocol if not provided (prefilters might expect it)
+ // Handle falsy url in the settings object (#10093: consistency with old signature)
+ // We also use the url parameter if available
+ s.url = ( ( url || s.url || location.href ) + "" )
+ .replace( rprotocol, location.protocol + "//" );
+
+ // Alias method option to type as per ticket #12004
+ s.type = options.method || options.type || s.method || s.type;
+
+ // Extract dataTypes list
+ s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];
+
+ // A cross-domain request is in order when the origin doesn't match the current origin.
+ if ( s.crossDomain == null ) {
+ urlAnchor = document.createElement( "a" );
+
+ // Support: IE <=8 - 11, Edge 12 - 13
+ // IE throws exception on accessing the href property if url is malformed,
+ // e.g. http://example.com:80x/
+ try {
+ urlAnchor.href = s.url;
+
+ // Support: IE <=8 - 11 only
+ // Anchor's host property isn't correctly set when s.url is relative
+ urlAnchor.href = urlAnchor.href;
+ s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
+ urlAnchor.protocol + "//" + urlAnchor.host;
+ } catch ( e ) {
+
+ // If there is an error parsing the URL, assume it is crossDomain,
+ // it can be rejected by the transport if it is invalid
+ s.crossDomain = true;
+ }
+ }
+
+ // Convert data if not already a string
+ if ( s.data && s.processData && typeof s.data !== "string" ) {
+ s.data = jQuery.param( s.data, s.traditional );
+ }
+
+ // Apply prefilters
+ inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+ // If request was aborted inside a prefilter, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // We can fire global events as of now if asked to
+ // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
+ fireGlobals = jQuery.event && s.global;
+
+ // Watch for a new set of requests
+ if ( fireGlobals && jQuery.active++ === 0 ) {
+ jQuery.event.trigger( "ajaxStart" );
+ }
+
+ // Uppercase the type
+ s.type = s.type.toUpperCase();
+
+ // Determine if request has content
+ s.hasContent = !rnoContent.test( s.type );
+
+ // Save the URL in case we're toying with the If-Modified-Since
+ // and/or If-None-Match header later on
+ // Remove hash to simplify url manipulation
+ cacheURL = s.url.replace( rhash, "" );
+
+ // More options handling for requests with no content
+ if ( !s.hasContent ) {
+
+ // Remember the hash so we can put it back
+ uncached = s.url.slice( cacheURL.length );
+
+ // If data is available, append data to url
+ if ( s.data ) {
+ cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
+
+ // #9682: remove data so that it's not used in an eventual retry
+ delete s.data;
+ }
+
+ // Add or update anti-cache param if needed
+ if ( s.cache === false ) {
+ cacheURL = cacheURL.replace( rantiCache, "$1" );
+ uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
+ }
+
+ // Put hash and anti-cache on the URL that will be requested (gh-1732)
+ s.url = cacheURL + uncached;
+
+ // Change '%20' to '+' if this is encoded form body content (gh-2658)
+ } else if ( s.data && s.processData &&
+ ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
+ s.data = s.data.replace( r20, "+" );
+ }
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ if ( jQuery.lastModified[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+ }
+ if ( jQuery.etag[ cacheURL ] ) {
+ jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+ }
+ }
+
+ // Set the correct header, if data is being sent
+ if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+ jqXHR.setRequestHeader( "Content-Type", s.contentType );
+ }
+
+ // Set the Accepts header for the server, depending on the dataType
+ jqXHR.setRequestHeader(
+ "Accept",
+ s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
+ s.accepts[ s.dataTypes[ 0 ] ] +
+ ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+ s.accepts[ "*" ]
+ );
+
+ // Check for headers option
+ for ( i in s.headers ) {
+ jqXHR.setRequestHeader( i, s.headers[ i ] );
+ }
+
+ // Allow custom headers/mimetypes and early abort
+ if ( s.beforeSend &&
+ ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
+
+ // Abort if not done already and return
+ return jqXHR.abort();
+ }
+
+ // Aborting is no longer a cancellation
+ strAbort = "abort";
+
+ // Install callbacks on deferreds
+ completeDeferred.add( s.complete );
+ jqXHR.done( s.success );
+ jqXHR.fail( s.error );
+
+ // Get transport
+ transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+ // If no transport, we auto-abort
+ if ( !transport ) {
+ done( -1, "No Transport" );
+ } else {
+ jqXHR.readyState = 1;
+
+ // Send global event
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+ }
+
+ // If request was aborted inside ajaxSend, stop there
+ if ( completed ) {
+ return jqXHR;
+ }
+
+ // Timeout
+ if ( s.async && s.timeout > 0 ) {
+ timeoutTimer = window.setTimeout( function() {
+ jqXHR.abort( "timeout" );
+ }, s.timeout );
+ }
+
+ try {
+ completed = false;
+ transport.send( requestHeaders, done );
+ } catch ( e ) {
+
+ // Rethrow post-completion exceptions
+ if ( completed ) {
+ throw e;
+ }
+
+ // Propagate others as results
+ done( -1, e );
+ }
+ }
+
+ // Callback for when everything is done
+ function done( status, nativeStatusText, responses, headers ) {
+ var isSuccess, success, error, response, modified,
+ statusText = nativeStatusText;
+
+ // Ignore repeat invocations
+ if ( completed ) {
+ return;
+ }
+
+ completed = true;
+
+ // Clear timeout if it exists
+ if ( timeoutTimer ) {
+ window.clearTimeout( timeoutTimer );
+ }
+
+ // Dereference transport for early garbage collection
+ // (no matter how long the jqXHR object will be used)
+ transport = undefined;
+
+ // Cache response headers
+ responseHeadersString = headers || "";
+
+ // Set readyState
+ jqXHR.readyState = status > 0 ? 4 : 0;
+
+ // Determine if successful
+ isSuccess = status >= 200 && status < 300 || status === 304;
+
+ // Get response data
+ if ( responses ) {
+ response = ajaxHandleResponses( s, jqXHR, responses );
+ }
+
+ // Convert no matter what (that way responseXXX fields are always set)
+ response = ajaxConvert( s, response, jqXHR, isSuccess );
+
+ // If successful, handle type chaining
+ if ( isSuccess ) {
+
+ // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+ if ( s.ifModified ) {
+ modified = jqXHR.getResponseHeader( "Last-Modified" );
+ if ( modified ) {
+ jQuery.lastModified[ cacheURL ] = modified;
+ }
+ modified = jqXHR.getResponseHeader( "etag" );
+ if ( modified ) {
+ jQuery.etag[ cacheURL ] = modified;
+ }
+ }
+
+ // if no content
+ if ( status === 204 || s.type === "HEAD" ) {
+ statusText = "nocontent";
+
+ // if not modified
+ } else if ( status === 304 ) {
+ statusText = "notmodified";
+
+ // If we have data, let's convert it
+ } else {
+ statusText = response.state;
+ success = response.data;
+ error = response.error;
+ isSuccess = !error;
+ }
+ } else {
+
+ // Extract error from statusText and normalize for non-aborts
+ error = statusText;
+ if ( status || !statusText ) {
+ statusText = "error";
+ if ( status < 0 ) {
+ status = 0;
+ }
+ }
+ }
+
+ // Set data for the fake xhr object
+ jqXHR.status = status;
+ jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+ // Success/Error
+ if ( isSuccess ) {
+ deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+ } else {
+ deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+ }
+
+ // Status-dependent callbacks
+ jqXHR.statusCode( statusCode );
+ statusCode = undefined;
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+ [ jqXHR, s, isSuccess ? success : error ] );
+ }
+
+ // Complete
+ completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+ if ( fireGlobals ) {
+ globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+
+ // Handle the global AJAX counter
+ if ( !( --jQuery.active ) ) {
+ jQuery.event.trigger( "ajaxStop" );
+ }
+ }
+ }
+
+ return jqXHR;
+ },
+
+ getJSON: function( url, data, callback ) {
+ return jQuery.get( url, data, callback, "json" );
+ },
+
+ getScript: function( url, callback ) {
+ return jQuery.get( url, undefined, callback, "script" );
+ }
+} );
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+ jQuery[ method ] = function( url, data, callback, type ) {
+
+ // Shift arguments if data argument was omitted
+ if ( jQuery.isFunction( data ) ) {
+ type = type || callback;
+ callback = data;
+ data = undefined;
+ }
+
+ // The url can be an options object (which then must have .url)
+ return jQuery.ajax( jQuery.extend( {
+ url: url,
+ type: method,
+ dataType: type,
+ data: data,
+ success: callback
+ }, jQuery.isPlainObject( url ) && url ) );
+ };
+} );
+
+
+jQuery._evalUrl = function( url ) {
+ return jQuery.ajax( {
+ url: url,
+
+ // Make this explicit, since user can override this through ajaxSetup (#11264)
+ type: "GET",
+ dataType: "script",
+ cache: true,
+ async: false,
+ global: false,
+ "throws": true
+ } );
+};
+
+
+jQuery.fn.extend( {
+ wrapAll: function( html ) {
+ var wrap;
+
+ if ( this[ 0 ] ) {
+ if ( jQuery.isFunction( html ) ) {
+ html = html.call( this[ 0 ] );
+ }
+
+ // The elements to wrap the target around
+ wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
+
+ if ( this[ 0 ].parentNode ) {
+ wrap.insertBefore( this[ 0 ] );
+ }
+
+ wrap.map( function() {
+ var elem = this;
+
+ while ( elem.firstElementChild ) {
+ elem = elem.firstElementChild;
+ }
+
+ return elem;
+ } ).append( this );
+ }
+
+ return this;
+ },
+
+ wrapInner: function( html ) {
+ if ( jQuery.isFunction( html ) ) {
+ return this.each( function( i ) {
+ jQuery( this ).wrapInner( html.call( this, i ) );
+ } );
+ }
+
+ return this.each( function() {
+ var self = jQuery( this ),
+ contents = self.contents();
+
+ if ( contents.length ) {
+ contents.wrapAll( html );
+
+ } else {
+ self.append( html );
+ }
+ } );
+ },
+
+ wrap: function( html ) {
+ var isFunction = jQuery.isFunction( html );
+
+ return this.each( function( i ) {
+ jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
+ } );
+ },
+
+ unwrap: function( selector ) {
+ this.parent( selector ).not( "body" ).each( function() {
+ jQuery( this ).replaceWith( this.childNodes );
+ } );
+ return this;
+ }
+} );
+
+
+jQuery.expr.pseudos.hidden = function( elem ) {
+ return !jQuery.expr.pseudos.visible( elem );
+};
+jQuery.expr.pseudos.visible = function( elem ) {
+ return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
+};
+
+
+
+
+jQuery.ajaxSettings.xhr = function() {
+ try {
+ return new window.XMLHttpRequest();
+ } catch ( e ) {}
+};
+
+var xhrSuccessStatus = {
+
+ // File protocol always yields status code 0, assume 200
+ 0: 200,
+
+ // Support: IE <=9 only
+ // #1450: sometimes IE returns 1223 when it should be 204
+ 1223: 204
+ },
+ xhrSupported = jQuery.ajaxSettings.xhr();
+
+support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+support.ajax = xhrSupported = !!xhrSupported;
+
+jQuery.ajaxTransport( function( options ) {
+ var callback, errorCallback;
+
+ // Cross domain only allowed if supported through XMLHttpRequest
+ if ( support.cors || xhrSupported && !options.crossDomain ) {
+ return {
+ send: function( headers, complete ) {
+ var i,
+ xhr = options.xhr();
+
+ xhr.open(
+ options.type,
+ options.url,
+ options.async,
+ options.username,
+ options.password
+ );
+
+ // Apply custom fields if provided
+ if ( options.xhrFields ) {
+ for ( i in options.xhrFields ) {
+ xhr[ i ] = options.xhrFields[ i ];
+ }
+ }
+
+ // Override mime type if needed
+ if ( options.mimeType && xhr.overrideMimeType ) {
+ xhr.overrideMimeType( options.mimeType );
+ }
+
+ // X-Requested-With header
+ // For cross-domain requests, seeing as conditions for a preflight are
+ // akin to a jigsaw puzzle, we simply never set it to be sure.
+ // (it can always be set on a per-request basis or even using ajaxSetup)
+ // For same-domain requests, won't change header if already provided.
+ if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
+ headers[ "X-Requested-With" ] = "XMLHttpRequest";
+ }
+
+ // Set headers
+ for ( i in headers ) {
+ xhr.setRequestHeader( i, headers[ i ] );
+ }
+
+ // Callback
+ callback = function( type ) {
+ return function() {
+ if ( callback ) {
+ callback = errorCallback = xhr.onload =
+ xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;
+
+ if ( type === "abort" ) {
+ xhr.abort();
+ } else if ( type === "error" ) {
+
+ // Support: IE <=9 only
+ // On a manual native abort, IE9 throws
+ // errors on any property access that is not readyState
+ if ( typeof xhr.status !== "number" ) {
+ complete( 0, "error" );
+ } else {
+ complete(
+
+ // File: protocol always yields status 0; see #8605, #14207
+ xhr.status,
+ xhr.statusText
+ );
+ }
+ } else {
+ complete(
+ xhrSuccessStatus[ xhr.status ] || xhr.status,
+ xhr.statusText,
+
+ // Support: IE <=9 only
+ // IE9 has no XHR2 but throws on binary (trac-11426)
+ // For XHR2 non-text, let the caller handle it (gh-2498)
+ ( xhr.responseType || "text" ) !== "text" ||
+ typeof xhr.responseText !== "string" ?
+ { binary: xhr.response } :
+ { text: xhr.responseText },
+ xhr.getAllResponseHeaders()
+ );
+ }
+ }
+ };
+ };
+
+ // Listen to events
+ xhr.onload = callback();
+ errorCallback = xhr.onerror = callback( "error" );
+
+ // Support: IE 9 only
+ // Use onreadystatechange to replace onabort
+ // to handle uncaught aborts
+ if ( xhr.onabort !== undefined ) {
+ xhr.onabort = errorCallback;
+ } else {
+ xhr.onreadystatechange = function() {
+
+ // Check readyState before timeout as it changes
+ if ( xhr.readyState === 4 ) {
+
+ // Allow onerror to be called first,
+ // but that will not handle a native abort
+ // Also, save errorCallback to a variable
+ // as xhr.onerror cannot be accessed
+ window.setTimeout( function() {
+ if ( callback ) {
+ errorCallback();
+ }
+ } );
+ }
+ };
+ }
+
+ // Create the abort callback
+ callback = callback( "abort" );
+
+ try {
+
+ // Do send the request (this may raise an exception)
+ xhr.send( options.hasContent && options.data || null );
+ } catch ( e ) {
+
+ // #14683: Only rethrow if this hasn't been notified as an error yet
+ if ( callback ) {
+ throw e;
+ }
+ }
+ },
+
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
+jQuery.ajaxPrefilter( function( s ) {
+ if ( s.crossDomain ) {
+ s.contents.script = false;
+ }
+} );
+
+// Install script dataType
+jQuery.ajaxSetup( {
+ accepts: {
+ script: "text/javascript, application/javascript, " +
+ "application/ecmascript, application/x-ecmascript"
+ },
+ contents: {
+ script: /\b(?:java|ecma)script\b/
+ },
+ converters: {
+ "text script": function( text ) {
+ jQuery.globalEval( text );
+ return text;
+ }
+ }
+} );
+
+// Handle cache's special case and crossDomain
+jQuery.ajaxPrefilter( "script", function( s ) {
+ if ( s.cache === undefined ) {
+ s.cache = false;
+ }
+ if ( s.crossDomain ) {
+ s.type = "GET";
+ }
+} );
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function( s ) {
+
+ // This transport only deals with cross domain requests
+ if ( s.crossDomain ) {
+ var script, callback;
+ return {
+ send: function( _, complete ) {
+ script = jQuery( "<script>" ).prop( {
+ charset: s.scriptCharset,
+ src: s.url
+ } ).on(
+ "load error",
+ callback = function( evt ) {
+ script.remove();
+ callback = null;
+ if ( evt ) {
+ complete( evt.type === "error" ? 404 : 200, evt.type );
+ }
+ }
+ );
+
+ // Use native DOM manipulation to avoid our domManip AJAX trickery
+ document.head.appendChild( script[ 0 ] );
+ },
+ abort: function() {
+ if ( callback ) {
+ callback();
+ }
+ }
+ };
+ }
+} );
+
+
+
+
+var oldCallbacks = [],
+ rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup( {
+ jsonp: "callback",
+ jsonpCallback: function() {
+ var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
+ this[ callback ] = true;
+ return callback;
+ }
+} );
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+ var callbackName, overwritten, responseContainer,
+ jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+ "url" :
+ typeof s.data === "string" &&
+ ( s.contentType || "" )
+ .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
+ rjsonp.test( s.data ) && "data"
+ );
+
+ // Handle iff the expected data type is "jsonp" or we have a parameter to set
+ if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+ // Get callback name, remembering preexisting value associated with it
+ callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
+ s.jsonpCallback() :
+ s.jsonpCallback;
+
+ // Insert callback into url or form data
+ if ( jsonProp ) {
+ s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+ } else if ( s.jsonp !== false ) {
+ s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+ }
+
+ // Use data converter to retrieve json after script execution
+ s.converters[ "script json" ] = function() {
+ if ( !responseContainer ) {
+ jQuery.error( callbackName + " was not called" );
+ }
+ return responseContainer[ 0 ];
+ };
+
+ // Force json dataType
+ s.dataTypes[ 0 ] = "json";
+
+ // Install callback
+ overwritten = window[ callbackName ];
+ window[ callbackName ] = function() {
+ responseContainer = arguments;
+ };
+
+ // Clean-up function (fires after converters)
+ jqXHR.always( function() {
+
+ // If previous value didn't exist - remove it
+ if ( overwritten === undefined ) {
+ jQuery( window ).removeProp( callbackName );
+
+ // Otherwise restore preexisting value
+ } else {
+ window[ callbackName ] = overwritten;
+ }
+
+ // Save back as free
+ if ( s[ callbackName ] ) {
+
+ // Make sure that re-using the options doesn't screw things around
+ s.jsonpCallback = originalSettings.jsonpCallback;
+
+ // Save the callback name for future use
+ oldCallbacks.push( callbackName );
+ }
+
+ // Call if it was a function and we have a response
+ if ( responseContainer && jQuery.isFunction( overwritten ) ) {
+ overwritten( responseContainer[ 0 ] );
+ }
+
+ responseContainer = overwritten = undefined;
+ } );
+
+ // Delegate to script
+ return "script";
+ }
+} );
+
+
+
+
+// Support: Safari 8 only
+// In Safari 8 documents created via document.implementation.createHTMLDocument
+// collapse sibling forms: the second one becomes a child of the first one.
+// Because of that, this security measure has to be disabled in Safari 8.
+// https://bugs.webkit.org/show_bug.cgi?id=137337
+support.createHTMLDocument = ( function() {
+ var body = document.implementation.createHTMLDocument( "" ).body;
+ body.innerHTML = "<form></form><form></form>";
+ return body.childNodes.length === 2;
+} )();
+
+
+// Argument "data" should be string of html
+// context (optional): If specified, the fragment will be created in this context,
+// defaults to document
+// keepScripts (optional): If true, will include scripts passed in the html string
+jQuery.parseHTML = function( data, context, keepScripts ) {
+ if ( typeof data !== "string" ) {
+ return [];
+ }
+ if ( typeof context === "boolean" ) {
+ keepScripts = context;
+ context = false;
+ }
+
+ var base, parsed, scripts;
+
+ if ( !context ) {
+
+ // Stop scripts or inline event handlers from being executed immediately
+ // by using document.implementation
+ if ( support.createHTMLDocument ) {
+ context = document.implementation.createHTMLDocument( "" );
+
+ // Set the base href for the created document
+ // so any parsed elements with URLs
+ // are based on the document's URL (gh-2965)
+ base = context.createElement( "base" );
+ base.href = document.location.href;
+ context.head.appendChild( base );
+ } else {
+ context = document;
+ }
+ }
+
+ parsed = rsingleTag.exec( data );
+ scripts = !keepScripts && [];
+
+ // Single tag
+ if ( parsed ) {
+ return [ context.createElement( parsed[ 1 ] ) ];
+ }
+
+ parsed = buildFragment( [ data ], context, scripts );
+
+ if ( scripts && scripts.length ) {
+ jQuery( scripts ).remove();
+ }
+
+ return jQuery.merge( [], parsed.childNodes );
+};
+
+
+/**
+ * Load a url into a page
+ */
+jQuery.fn.load = function( url, params, callback ) {
+ var selector, type, response,
+ self = this,
+ off = url.indexOf( " " );
+
+ if ( off > -1 ) {
+ selector = stripAndCollapse( url.slice( off ) );
+ url = url.slice( 0, off );
+ }
+
+ // If it's a function
+ if ( jQuery.isFunction( params ) ) {
+
+ // We assume that it's the callback
+ callback = params;
+ params = undefined;
+
+ // Otherwise, build a param string
+ } else if ( params && typeof params === "object" ) {
+ type = "POST";
+ }
+
+ // If we have elements to modify, make the request
+ if ( self.length > 0 ) {
+ jQuery.ajax( {
+ url: url,
+
+ // If "type" variable is undefined, then "GET" method will be used.
+ // Make value of this field explicit since
+ // user can override it through ajaxSetup method
+ type: type || "GET",
+ dataType: "html",
+ data: params
+ } ).done( function( responseText ) {
+
+ // Save response for use in complete callback
+ response = arguments;
+
+ self.html( selector ?
+
+ // If a selector was specified, locate the right elements in a dummy div
+ // Exclude scripts to avoid IE 'Permission Denied' errors
+ jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+ // Otherwise use the full result
+ responseText );
+
+ // If the request succeeds, this function gets "data", "status", "jqXHR"
+ // but they are ignored because response was set above.
+ // If it fails, this function gets "jqXHR", "status", "error"
+ } ).always( callback && function( jqXHR, status ) {
+ self.each( function() {
+ callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
+ } );
+ } );
+ }
+
+ return this;
+};
+
+
+
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [
+ "ajaxStart",
+ "ajaxStop",
+ "ajaxComplete",
+ "ajaxError",
+ "ajaxSuccess",
+ "ajaxSend"
+], function( i, type ) {
+ jQuery.fn[ type ] = function( fn ) {
+ return this.on( type, fn );
+ };
+} );
+
+
+
+
+jQuery.expr.pseudos.animated = function( elem ) {
+ return jQuery.grep( jQuery.timers, function( fn ) {
+ return elem === fn.elem;
+ } ).length;
+};
+
+
+
+
+jQuery.offset = {
+ setOffset: function( elem, options, i ) {
+ var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
+ position = jQuery.css( elem, "position" ),
+ curElem = jQuery( elem ),
+ props = {};
+
+ // Set position first, in-case top/left are set even on static elem
+ if ( position === "static" ) {
+ elem.style.position = "relative";
+ }
+
+ curOffset = curElem.offset();
+ curCSSTop = jQuery.css( elem, "top" );
+ curCSSLeft = jQuery.css( elem, "left" );
+ calculatePosition = ( position === "absolute" || position === "fixed" ) &&
+ ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
+
+ // Need to be able to calculate position if either
+ // top or left is auto and position is either absolute or fixed
+ if ( calculatePosition ) {
+ curPosition = curElem.position();
+ curTop = curPosition.top;
+ curLeft = curPosition.left;
+
+ } else {
+ curTop = parseFloat( curCSSTop ) || 0;
+ curLeft = parseFloat( curCSSLeft ) || 0;
+ }
+
+ if ( jQuery.isFunction( options ) ) {
+
+ // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
+ options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
+ }
+
+ if ( options.top != null ) {
+ props.top = ( options.top - curOffset.top ) + curTop;
+ }
+ if ( options.left != null ) {
+ props.left = ( options.left - curOffset.left ) + curLeft;
+ }
+
+ if ( "using" in options ) {
+ options.using.call( elem, props );
+
+ } else {
+ curElem.css( props );
+ }
+ }
+};
+
+jQuery.fn.extend( {
+ offset: function( options ) {
+
+ // Preserve chaining for setter
+ if ( arguments.length ) {
+ return options === undefined ?
+ this :
+ this.each( function( i ) {
+ jQuery.offset.setOffset( this, options, i );
+ } );
+ }
+
+ var doc, docElem, rect, win,
+ elem = this[ 0 ];
+
+ if ( !elem ) {
+ return;
+ }
+
+ // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
+ // Support: IE <=11 only
+ // Running getBoundingClientRect on a
+ // disconnected node in IE throws an error
+ if ( !elem.getClientRects().length ) {
+ return { top: 0, left: 0 };
+ }
+
+ rect = elem.getBoundingClientRect();
+
+ doc = elem.ownerDocument;
+ docElem = doc.documentElement;
+ win = doc.defaultView;
+
+ return {
+ top: rect.top + win.pageYOffset - docElem.clientTop,
+ left: rect.left + win.pageXOffset - docElem.clientLeft
+ };
+ },
+
+ position: function() {
+ if ( !this[ 0 ] ) {
+ return;
+ }
+
+ var offsetParent, offset,
+ elem = this[ 0 ],
+ parentOffset = { top: 0, left: 0 };
+
+ // Fixed elements are offset from window (parentOffset = {top:0, left: 0},
+ // because it is its only offset parent
+ if ( jQuery.css( elem, "position" ) === "fixed" ) {
+
+ // Assume getBoundingClientRect is there when computed position is fixed
+ offset = elem.getBoundingClientRect();
+
+ } else {
+
+ // Get *real* offsetParent
+ offsetParent = this.offsetParent();
+
+ // Get correct offsets
+ offset = this.offset();
+ if ( !nodeName( offsetParent[ 0 ], "html" ) ) {
+ parentOffset = offsetParent.offset();
+ }
+
+ // Add offsetParent borders
+ parentOffset = {
+ top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ),
+ left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true )
+ };
+ }
+
+ // Subtract parent offsets and element margins
+ return {
+ top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+ left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
+ };
+ },
+
+ // This method will return documentElement in the following cases:
+ // 1) For the element inside the iframe without offsetParent, this method will return
+ // documentElement of the parent window
+ // 2) For the hidden or detached element
+ // 3) For body or html element, i.e. in case of the html node - it will return itself
+ //
+ // but those exceptions were never presented as a real life use-cases
+ // and might be considered as more preferable results.
+ //
+ // This logic, however, is not guaranteed and can change at any point in the future
+ offsetParent: function() {
+ return this.map( function() {
+ var offsetParent = this.offsetParent;
+
+ while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
+ offsetParent = offsetParent.offsetParent;
+ }
+
+ return offsetParent || documentElement;
+ } );
+ }
+} );
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
+ var top = "pageYOffset" === prop;
+
+ jQuery.fn[ method ] = function( val ) {
+ return access( this, function( elem, method, val ) {
+
+ // Coalesce documents and windows
+ var win;
+ if ( jQuery.isWindow( elem ) ) {
+ win = elem;
+ } else if ( elem.nodeType === 9 ) {
+ win = elem.defaultView;
+ }
+
+ if ( val === undefined ) {
+ return win ? win[ prop ] : elem[ method ];
+ }
+
+ if ( win ) {
+ win.scrollTo(
+ !top ? val : win.pageXOffset,
+ top ? val : win.pageYOffset
+ );
+
+ } else {
+ elem[ method ] = val;
+ }
+ }, method, val, arguments.length );
+ };
+} );
+
+// Support: Safari <=7 - 9.1, Chrome <=37 - 49
+// Add the top/left cssHooks using jQuery.fn.position
+// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
+// getComputedStyle returns percent when specified for top/left/bottom/right;
+// rather than make the css module depend on the offset module, just check for it here
+jQuery.each( [ "top", "left" ], function( i, prop ) {
+ jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
+ function( elem, computed ) {
+ if ( computed ) {
+ computed = curCSS( elem, prop );
+
+ // If curCSS returns percentage, fallback to offset
+ return rnumnonpx.test( computed ) ?
+ jQuery( elem ).position()[ prop ] + "px" :
+ computed;
+ }
+ }
+ );
+} );
+
+
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+ jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
+ function( defaultExtra, funcName ) {
+
+ // Margin is only for outerHeight, outerWidth
+ jQuery.fn[ funcName ] = function( margin, value ) {
+ var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+ extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+ return access( this, function( elem, type, value ) {
+ var doc;
+
+ if ( jQuery.isWindow( elem ) ) {
+
+ // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
+ return funcName.indexOf( "outer" ) === 0 ?
+ elem[ "inner" + name ] :
+ elem.document.documentElement[ "client" + name ];
+ }
+
+ // Get document width or height
+ if ( elem.nodeType === 9 ) {
+ doc = elem.documentElement;
+
+ // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
+ // whichever is greatest
+ return Math.max(
+ elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+ elem.body[ "offset" + name ], doc[ "offset" + name ],
+ doc[ "client" + name ]
+ );
+ }
+
+ return value === undefined ?
+
+ // Get width or height on the element, requesting but not forcing parseFloat
+ jQuery.css( elem, type, extra ) :
+
+ // Set width or height on the element
+ jQuery.style( elem, type, value, extra );
+ }, type, chainable ? margin : undefined, chainable );
+ };
+ } );
+} );
+
+
+jQuery.fn.extend( {
+
+ bind: function( types, data, fn ) {
+ return this.on( types, null, data, fn );
+ },
+ unbind: function( types, fn ) {
+ return this.off( types, null, fn );
+ },
+
+ delegate: function( selector, types, data, fn ) {
+ return this.on( types, selector, data, fn );
+ },
+ undelegate: function( selector, types, fn ) {
+
+ // ( namespace ) or ( selector, types [, fn] )
+ return arguments.length === 1 ?
+ this.off( selector, "**" ) :
+ this.off( types, selector || "**", fn );
+ }
+} );
+
+jQuery.holdReady = function( hold ) {
+ if ( hold ) {
+ jQuery.readyWait++;
+ } else {
+ jQuery.ready( true );
+ }
+};
+jQuery.isArray = Array.isArray;
+jQuery.parseJSON = JSON.parse;
+jQuery.nodeName = nodeName;
+
+
+
+
+// Register as a named AMD module, since jQuery can be concatenated with other
+// files that may use define, but not via a proper concatenation script that
+// understands anonymous AMD modules. A named AMD is safest and most robust
+// way to register. Lowercase jquery is used because AMD module names are
+// derived from file names, and jQuery is normally delivered in a lowercase
+// file name. Do this after creating the global so that if an AMD module wants
+// to call noConflict to hide this version of jQuery, it will work.
+
+// Note that for maximum portability, libraries that are not jQuery should
+// declare themselves as anonymous modules, and avoid setting a global if an
+// AMD loader is present. jQuery is a special case. For more information, see
+// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
+
+if ( typeof define === "function" && define.amd ) {
+ define( "jquery", [], function() {
+ return jQuery;
+ } );
+}
+
+
+
+
+var
+
+ // Map over jQuery in case of overwrite
+ _jQuery = window.jQuery,
+
+ // Map over the $ in case of overwrite
+ _$ = window.$;
+
+jQuery.noConflict = function( deep ) {
+ if ( window.$ === jQuery ) {
+ window.$ = _$;
+ }
+
+ if ( deep && window.jQuery === jQuery ) {
+ window.jQuery = _jQuery;
+ }
+
+ return jQuery;
+};
+
+// Expose jQuery and $ identifiers, even in AMD
+// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
+// and CommonJS for browser emulators (#13566)
+if ( !noGlobal ) {
+ window.jQuery = window.$ = jQuery;
+}
+
+
+
+
+return jQuery;
+} );
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.min.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.min.js
new file mode 100644
index 0000000000..644d35e274
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/jquery/dist/jquery.min.js
@@ -0,0 +1,4 @@
+/*! jQuery v3.2.1 | (c) JS Foundation and other contributors | jquery.org/license */
+!function(a,b){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=a.document?b(a,!0):function(a){if(!a.document)throw new Error("jQuery requires a window with a document");return b(a)}:b(a)}("undefined"!=typeof window?window:this,function(a,b){"use strict";var c=[],d=a.document,e=Object.getPrototypeOf,f=c.slice,g=c.concat,h=c.push,i=c.indexOf,j={},k=j.toString,l=j.hasOwnProperty,m=l.toString,n=m.call(Object),o={};function p(a,b){b=b||d;var c=b.createElement("script");c.text=a,b.head.appendChild(c).parentNode.removeChild(c)}var q="3.2.1",r=function(a,b){return new r.fn.init(a,b)},s=/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,t=/^-ms-/,u=/-([a-z])/g,v=function(a,b){return b.toUpperCase()};r.fn=r.prototype={jquery:q,constructor:r,length:0,toArray:function(){return f.call(this)},get:function(a){return null==a?f.call(this):a<0?this[a+this.length]:this[a]},pushStack:function(a){var b=r.merge(this.constructor(),a);return b.prevObject=this,b},each:function(a){return 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\ No newline at end of file
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-app-css/index.css b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-app-css/index.css
new file mode 100644
index 0000000000..e04fbdbdb4
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-app-css/index.css
@@ -0,0 +1,376 @@
+html,
+body {
+ margin: 0;
+ padding: 0;
+}
+
+button {
+ margin: 0;
+ padding: 0;
+ border: 0;
+ background: none;
+ font-size: 100%;
+ vertical-align: baseline;
+ font-family: inherit;
+ font-weight: inherit;
+ color: inherit;
+ -webkit-appearance: none;
+ appearance: none;
+ -webkit-font-smoothing: antialiased;
+ -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+ font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
+ line-height: 1.4em;
+ background: #f5f5f5;
+ color: #4d4d4d;
+ min-width: 230px;
+ max-width: 550px;
+ margin: 0 auto;
+ -webkit-font-smoothing: antialiased;
+ -moz-osx-font-smoothing: grayscale;
+ font-weight: 300;
+}
+
+:focus {
+ outline: 0;
+}
+
+.hidden {
+ display: none;
+}
+
+.todoapp {
+ background: #fff;
+ margin: 130px 0 40px 0;
+ position: relative;
+ box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2),
+ 0 25px 50px 0 rgba(0, 0, 0, 0.1);
+}
+
+.todoapp input::-webkit-input-placeholder {
+ font-style: italic;
+ font-weight: 300;
+ color: #e6e6e6;
+}
+
+.todoapp input::-moz-placeholder {
+ font-style: italic;
+ font-weight: 300;
+ color: #e6e6e6;
+}
+
+.todoapp input::input-placeholder {
+ font-style: italic;
+ font-weight: 300;
+ color: #e6e6e6;
+}
+
+.todoapp h1 {
+ position: absolute;
+ top: -155px;
+ width: 100%;
+ font-size: 100px;
+ font-weight: 100;
+ text-align: center;
+ color: rgba(175, 47, 47, 0.15);
+ -webkit-text-rendering: optimizeLegibility;
+ -moz-text-rendering: optimizeLegibility;
+ text-rendering: optimizeLegibility;
+}
+
+.new-todo,
+.edit {
+ position: relative;
+ margin: 0;
+ width: 100%;
+ font-size: 24px;
+ font-family: inherit;
+ font-weight: inherit;
+ line-height: 1.4em;
+ border: 0;
+ color: inherit;
+ padding: 6px;
+ border: 1px solid #999;
+ box-shadow: inset 0 -1px 5px 0 rgba(0, 0, 0, 0.2);
+ box-sizing: border-box;
+ -webkit-font-smoothing: antialiased;
+ -moz-osx-font-smoothing: grayscale;
+}
+
+.new-todo {
+ padding: 16px 16px 16px 60px;
+ border: none;
+ background: rgba(0, 0, 0, 0.003);
+ box-shadow: inset 0 -2px 1px rgba(0,0,0,0.03);
+}
+
+.main {
+ position: relative;
+ z-index: 2;
+ border-top: 1px solid #e6e6e6;
+}
+
+.toggle-all {
+ text-align: center;
+ border: none; /* Mobile Safari */
+ opacity: 0;
+ position: absolute;
+}
+
+.toggle-all + label {
+ width: 60px;
+ height: 34px;
+ font-size: 0;
+ position: absolute;
+ top: -52px;
+ left: -13px;
+ -webkit-transform: rotate(90deg);
+ transform: rotate(90deg);
+}
+
+.toggle-all + label:before {
+ content: '❯';
+ font-size: 22px;
+ color: #e6e6e6;
+ padding: 10px 27px 10px 27px;
+}
+
+.toggle-all:checked + label:before {
+ color: #737373;
+}
+
+.todo-list {
+ margin: 0;
+ padding: 0;
+ list-style: none;
+}
+
+.todo-list li {
+ position: relative;
+ font-size: 24px;
+ border-bottom: 1px solid #ededed;
+}
+
+.todo-list li:last-child {
+ border-bottom: none;
+}
+
+.todo-list li.editing {
+ border-bottom: none;
+ padding: 0;
+}
+
+.todo-list li.editing .edit {
+ display: block;
+ width: 506px;
+ padding: 12px 16px;
+ margin: 0 0 0 43px;
+}
+
+.todo-list li.editing .view {
+ display: none;
+}
+
+.todo-list li .toggle {
+ text-align: center;
+ width: 40px;
+ /* auto, since non-WebKit browsers doesn't support input styling */
+ height: auto;
+ position: absolute;
+ top: 0;
+ bottom: 0;
+ margin: auto 0;
+ border: none; /* Mobile Safari */
+ -webkit-appearance: none;
+ appearance: none;
+}
+
+.todo-list li .toggle {
+ opacity: 0;
+}
+
+.todo-list li .toggle + label {
+ /*
+ Firefox requires `#` to be escaped - https://bugzilla.mozilla.org/show_bug.cgi?id=922433
+ IE and Edge requires *everything* to be escaped to render, so we do that instead of just the `#` - https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/7157459/
+ */
+ background-image: url('data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2240%22%20height%3D%2240%22%20viewBox%3D%22-10%20-18%20100%20135%22%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2250%22%20fill%3D%22none%22%20stroke%3D%22%23ededed%22%20stroke-width%3D%223%22/%3E%3C/svg%3E');
+ background-repeat: no-repeat;
+ background-position: center left;
+}
+
+.todo-list li .toggle:checked + label {
+ background-image: url('data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2240%22%20height%3D%2240%22%20viewBox%3D%22-10%20-18%20100%20135%22%3E%3Ccircle%20cx%3D%2250%22%20cy%3D%2250%22%20r%3D%2250%22%20fill%3D%22none%22%20stroke%3D%22%23bddad5%22%20stroke-width%3D%223%22/%3E%3Cpath%20fill%3D%22%235dc2af%22%20d%3D%22M72%2025L42%2071%2027%2056l-4%204%2020%2020%2034-52z%22/%3E%3C/svg%3E');
+}
+
+.todo-list li label {
+ word-break: break-all;
+ padding: 15px 15px 15px 60px;
+ display: block;
+ line-height: 1.2;
+ transition: color 0.4s;
+}
+
+.todo-list li.completed label {
+ color: #d9d9d9;
+ text-decoration: line-through;
+}
+
+.todo-list li .destroy {
+ display: none;
+ position: absolute;
+ top: 0;
+ right: 10px;
+ bottom: 0;
+ width: 40px;
+ height: 40px;
+ margin: auto 0;
+ font-size: 30px;
+ color: #cc9a9a;
+ margin-bottom: 11px;
+ transition: color 0.2s ease-out;
+}
+
+.todo-list li .destroy:hover {
+ color: #af5b5e;
+}
+
+.todo-list li .destroy:after {
+ content: '×';
+}
+
+.todo-list li:hover .destroy {
+ display: block;
+}
+
+.todo-list li .edit {
+ display: none;
+}
+
+.todo-list li.editing:last-child {
+ margin-bottom: -1px;
+}
+
+.footer {
+ color: #777;
+ padding: 10px 15px;
+ height: 20px;
+ text-align: center;
+ border-top: 1px solid #e6e6e6;
+}
+
+.footer:before {
+ content: '';
+ position: absolute;
+ right: 0;
+ bottom: 0;
+ left: 0;
+ height: 50px;
+ overflow: hidden;
+ box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2),
+ 0 8px 0 -3px #f6f6f6,
+ 0 9px 1px -3px rgba(0, 0, 0, 0.2),
+ 0 16px 0 -6px #f6f6f6,
+ 0 17px 2px -6px rgba(0, 0, 0, 0.2);
+}
+
+.todo-count {
+ float: left;
+ text-align: left;
+}
+
+.todo-count strong {
+ font-weight: 300;
+}
+
+.filters {
+ margin: 0;
+ padding: 0;
+ list-style: none;
+ position: absolute;
+ right: 0;
+ left: 0;
+}
+
+.filters li {
+ display: inline;
+}
+
+.filters li a {
+ color: inherit;
+ margin: 3px;
+ padding: 3px 7px;
+ text-decoration: none;
+ border: 1px solid transparent;
+ border-radius: 3px;
+}
+
+.filters li a:hover {
+ border-color: rgba(175, 47, 47, 0.1);
+}
+
+.filters li a.selected {
+ border-color: rgba(175, 47, 47, 0.2);
+}
+
+.clear-completed,
+html .clear-completed:active {
+ float: right;
+ position: relative;
+ line-height: 20px;
+ text-decoration: none;
+ cursor: pointer;
+}
+
+.clear-completed:hover {
+ text-decoration: underline;
+}
+
+.info {
+ margin: 65px auto 0;
+ color: #bfbfbf;
+ font-size: 10px;
+ text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
+ text-align: center;
+}
+
+.info p {
+ line-height: 1;
+}
+
+.info a {
+ color: inherit;
+ text-decoration: none;
+ font-weight: 400;
+}
+
+.info a:hover {
+ text-decoration: underline;
+}
+
+/*
+ Hack to remove background from Mobile Safari.
+ Can't use it globally since it destroys checkboxes in Firefox
+*/
+@media screen and (-webkit-min-device-pixel-ratio:0) {
+ .toggle-all,
+ .todo-list li .toggle {
+ background: none;
+ }
+
+ .todo-list li .toggle {
+ height: 40px;
+ }
+}
+
+@media (max-width: 430px) {
+ .footer {
+ height: 50px;
+ }
+
+ .filters {
+ bottom: 10px;
+ }
+}
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.css b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.css
new file mode 100644
index 0000000000..4d25d3c84a
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.css
@@ -0,0 +1,141 @@
+hr {
+ margin: 20px 0;
+ border: 0;
+ border-top: 1px dashed #c5c5c5;
+ border-bottom: 1px dashed #f7f7f7;
+}
+
+.learn a {
+ font-weight: normal;
+ text-decoration: none;
+ color: #b83f45;
+}
+
+.learn a:hover {
+ text-decoration: underline;
+ color: #787e7e;
+}
+
+.learn h3,
+.learn h4,
+.learn h5 {
+ margin: 10px 0;
+ font-weight: 500;
+ line-height: 1.2;
+ color: #000;
+}
+
+.learn h3 {
+ font-size: 24px;
+}
+
+.learn h4 {
+ font-size: 18px;
+}
+
+.learn h5 {
+ margin-bottom: 0;
+ font-size: 14px;
+}
+
+.learn ul {
+ padding: 0;
+ margin: 0 0 30px 25px;
+}
+
+.learn li {
+ line-height: 20px;
+}
+
+.learn p {
+ font-size: 15px;
+ font-weight: 300;
+ line-height: 1.3;
+ margin-top: 0;
+ margin-bottom: 0;
+}
+
+#issue-count {
+ display: none;
+}
+
+.quote {
+ border: none;
+ margin: 20px 0 60px 0;
+}
+
+.quote p {
+ font-style: italic;
+}
+
+.quote p:before {
+ content: '“';
+ font-size: 50px;
+ opacity: .15;
+ position: absolute;
+ top: -20px;
+ left: 3px;
+}
+
+.quote p:after {
+ content: '”';
+ font-size: 50px;
+ opacity: .15;
+ position: absolute;
+ bottom: -42px;
+ right: 3px;
+}
+
+.quote footer {
+ position: absolute;
+ bottom: -40px;
+ right: 0;
+}
+
+.quote footer img {
+ border-radius: 3px;
+}
+
+.quote footer a {
+ margin-left: 5px;
+ vertical-align: middle;
+}
+
+.speech-bubble {
+ position: relative;
+ padding: 10px;
+ background: rgba(0, 0, 0, .04);
+ border-radius: 5px;
+}
+
+.speech-bubble:after {
+ content: '';
+ position: absolute;
+ top: 100%;
+ right: 30px;
+ border: 13px solid transparent;
+ border-top-color: rgba(0, 0, 0, .04);
+}
+
+.learn-bar > .learn {
+ position: absolute;
+ width: 272px;
+ top: 8px;
+ left: -300px;
+ padding: 10px;
+ border-radius: 5px;
+ background-color: rgba(255, 255, 255, .6);
+ transition-property: left;
+ transition-duration: 500ms;
+}
+
+@media (min-width: 899px) {
+ .learn-bar {
+ width: auto;
+ padding-left: 300px;
+ }
+
+ .learn-bar > .learn {
+ left: 8px;
+ }
+}
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.js
new file mode 100644
index 0000000000..81e006bc50
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/todomvc-common/base.js
@@ -0,0 +1,249 @@
+/* global _ */
+(function () {
+ 'use strict';
+
+ /* jshint ignore:start */
+ // Underscore's Template Module
+ // Courtesy of underscorejs.org
+ var _ = (function (_) {
+ _.defaults = function (object) {
+ if (!object) {
+ return object;
+ }
+ for (var argsIndex = 1, argsLength = arguments.length; argsIndex < argsLength; argsIndex++) {
+ var iterable = arguments[argsIndex];
+ if (iterable) {
+ for (var key in iterable) {
+ if (object[key] == null) {
+ object[key] = iterable[key];
+ }
+ }
+ }
+ }
+ return object;
+ }
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g,
+ escape : /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\t': 't',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ _.template = function(text, data, settings) {
+ var render;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = new RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset)
+ .replace(escaper, function(match) { return '\\' + escapes[match]; });
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ }
+ if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ }
+ if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+ index = offset + match.length;
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + "return __p;\n";
+
+ try {
+ render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ if (data) return render(data, _);
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled function source as a convenience for precompilation.
+ template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
+
+ return template;
+ };
+
+ return _;
+ })({});
+
+ if (location.hostname === 'todomvc.com') {
+ (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+ m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+ })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+ ga('create', 'UA-31081062-1', 'auto');
+ ga('send', 'pageview');
+ }
+ /* jshint ignore:end */
+
+ function redirect() {
+ if (location.hostname === 'tastejs.github.io') {
+ location.href = location.href.replace('tastejs.github.io/todomvc', 'todomvc.com');
+ }
+ }
+
+ function findRoot() {
+ var base = location.href.indexOf('examples/');
+ return location.href.substr(0, base);
+ }
+
+ function getFile(file, callback) {
+ if (!location.host) {
+ return console.info('Miss the info bar? Run TodoMVC from a server to avoid a cross-origin error.');
+ }
+
+ var xhr = new XMLHttpRequest();
+
+ xhr.open('GET', findRoot() + file, true);
+ xhr.send();
+
+ xhr.onload = function () {
+ if (xhr.status === 200 && callback) {
+ callback(xhr.responseText);
+ }
+ };
+ }
+
+ function Learn(learnJSON, config) {
+ if (!(this instanceof Learn)) {
+ return new Learn(learnJSON, config);
+ }
+
+ var template, framework;
+
+ if (typeof learnJSON !== 'object') {
+ try {
+ learnJSON = JSON.parse(learnJSON);
+ } catch (e) {
+ return;
+ }
+ }
+
+ if (config) {
+ template = config.template;
+ framework = config.framework;
+ }
+
+ if (!template && learnJSON.templates) {
+ template = learnJSON.templates.todomvc;
+ }
+
+ if (!framework && document.querySelector('[data-framework]')) {
+ framework = document.querySelector('[data-framework]').dataset.framework;
+ }
+
+ this.template = template;
+
+ if (learnJSON.backend) {
+ this.frameworkJSON = learnJSON.backend;
+ this.frameworkJSON.issueLabel = framework;
+ this.append({
+ backend: true
+ });
+ } else if (learnJSON[framework]) {
+ this.frameworkJSON = learnJSON[framework];
+ this.frameworkJSON.issueLabel = framework;
+ this.append();
+ }
+
+ this.fetchIssueCount();
+ }
+
+ Learn.prototype.append = function (opts) {
+ var aside = document.createElement('aside');
+ aside.innerHTML = _.template(this.template, this.frameworkJSON);
+ aside.className = 'learn';
+
+ if (opts && opts.backend) {
+ // Remove demo link
+ var sourceLinks = aside.querySelector('.source-links');
+ var heading = sourceLinks.firstElementChild;
+ var sourceLink = sourceLinks.lastElementChild;
+ // Correct link path
+ var href = sourceLink.getAttribute('href');
+ sourceLink.setAttribute('href', href.substr(href.lastIndexOf('http')));
+ sourceLinks.innerHTML = heading.outerHTML + sourceLink.outerHTML;
+ } else {
+ // Localize demo links
+ var demoLinks = aside.querySelectorAll('.demo-link');
+ Array.prototype.forEach.call(demoLinks, function (demoLink) {
+ if (demoLink.getAttribute('href').substr(0, 4) !== 'http') {
+ demoLink.setAttribute('href', findRoot() + demoLink.getAttribute('href'));
+ }
+ });
+ }
+
+ document.body.className = (document.body.className + ' learn-bar').trim();
+ document.body.insertAdjacentHTML('afterBegin', aside.outerHTML);
+ };
+
+ Learn.prototype.fetchIssueCount = function () {
+ var issueLink = document.getElementById('issue-count-link');
+ if (issueLink) {
+ var url = issueLink.href.replace('https://github.com', 'https://api.github.com/repos');
+ var xhr = new XMLHttpRequest();
+ xhr.open('GET', url, true);
+ xhr.onload = function (e) {
+ var parsedResponse = JSON.parse(e.target.responseText);
+ if (parsedResponse instanceof Array) {
+ var count = parsedResponse.length;
+ if (count !== 0) {
+ issueLink.innerHTML = 'This app has ' + count + ' open issues';
+ document.getElementById('issue-count').style.display = 'inline';
+ }
+ }
+ };
+ xhr.send();
+ }
+ };
+
+ redirect();
+ getFile('learn.json', Learn);
+})();
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore-min.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore-min.js
new file mode 100644
index 0000000000..f01025b7bc
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore-min.js
@@ -0,0 +1,6 @@
+// Underscore.js 1.8.3
+// http://underscorejs.org
+// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+(function(){function n(n){function t(t,r,e,u,i,o){for(;i>=0&&o>i;i+=n){var a=u?u[i]:i;e=r(e,t[a],a,t)}return e}return function(r,e,u,i){e=b(e,i,4);var o=!k(r)&&m.keys(r),a=(o||r).length,c=n>0?0:a-1;return arguments.length<3&&(u=r[o?o[c]:c],c+=n),t(r,e,u,o,c,a)}}function t(n){return function(t,r,e){r=x(r,e);for(var u=O(t),i=n>0?0:u-1;i>=0&&u>i;i+=n)if(r(t[i],i,t))return i;return-1}}function r(n,t,r){return function(e,u,i){var o=0,a=O(e);if("number"==typeof i)n>0?o=i>=0?i:Math.max(i+a,o):a=i>=0?Math.min(i+1,a):i+a+1;else if(r&&i&&a)return i=r(e,u),e[i]===u?i:-1;if(u!==u)return i=t(l.call(e,o,a),m.isNaN),i>=0?i+o:-1;for(i=n>0?o:a-1;i>=0&&a>i;i+=n)if(e[i]===u)return i;return-1}}function e(n,t){var r=I.length,e=n.constructor,u=m.isFunction(e)&&e.prototype||a,i="constructor";for(m.has(n,i)&&!m.contains(t,i)&&t.push(i);r--;)i=I[r],i in n&&n[i]!==u[i]&&!m.contains(t,i)&&t.push(i)}var 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\ No newline at end of file
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore.js b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore.js
new file mode 100644
index 0000000000..b29332f945
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/Speedometer/resources/todomvc/architecture-examples/backbone/node_modules/underscore/underscore.js
@@ -0,0 +1,1548 @@
+// Underscore.js 1.8.3
+// http://underscorejs.org
+// (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+// Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+ // Baseline setup
+ // --------------
+
+ // Establish the root object, `window` in the browser, or `exports` on the server.
+ var root = this;
+
+ // Save the previous value of the `_` variable.
+ var previousUnderscore = root._;
+
+ // Save bytes in the minified (but not gzipped) version:
+ var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+ // Create quick reference variables for speed access to core prototypes.
+ var
+ push = ArrayProto.push,
+ slice = ArrayProto.slice,
+ toString = ObjProto.toString,
+ hasOwnProperty = ObjProto.hasOwnProperty;
+
+ // All **ECMAScript 5** native function implementations that we hope to use
+ // are declared here.
+ var
+ nativeIsArray = Array.isArray,
+ nativeKeys = Object.keys,
+ nativeBind = FuncProto.bind,
+ nativeCreate = Object.create;
+
+ // Naked function reference for surrogate-prototype-swapping.
+ var Ctor = function(){};
+
+ // Create a safe reference to the Underscore object for use below.
+ var _ = function(obj) {
+ if (obj instanceof _) return obj;
+ if (!(this instanceof _)) return new _(obj);
+ this._wrapped = obj;
+ };
+
+ // Export the Underscore object for **Node.js**, with
+ // backwards-compatibility for the old `require()` API. If we're in
+ // the browser, add `_` as a global object.
+ if (typeof exports !== 'undefined') {
+ if (typeof module !== 'undefined' && module.exports) {
+ exports = module.exports = _;
+ }
+ exports._ = _;
+ } else {
+ root._ = _;
+ }
+
+ // Current version.
+ _.VERSION = '1.8.3';
+
+ // Internal function that returns an efficient (for current engines) version
+ // of the passed-in callback, to be repeatedly applied in other Underscore
+ // functions.
+ var optimizeCb = function(func, context, argCount) {
+ if (context === void 0) return func;
+ switch (argCount == null ? 3 : argCount) {
+ case 1: return function(value) {
+ return func.call(context, value);
+ };
+ case 2: return function(value, other) {
+ return func.call(context, value, other);
+ };
+ case 3: return function(value, index, collection) {
+ return func.call(context, value, index, collection);
+ };
+ case 4: return function(accumulator, value, index, collection) {
+ return func.call(context, accumulator, value, index, collection);
+ };
+ }
+ return function() {
+ return func.apply(context, arguments);
+ };
+ };
+
+ // A mostly-internal function to generate callbacks that can be applied
+ // to each element in a collection, returning the desired result — either
+ // identity, an arbitrary callback, a property matcher, or a property accessor.
+ var cb = function(value, context, argCount) {
+ if (value == null) return _.identity;
+ if (_.isFunction(value)) return optimizeCb(value, context, argCount);
+ if (_.isObject(value)) return _.matcher(value);
+ return _.property(value);
+ };
+ _.iteratee = function(value, context) {
+ return cb(value, context, Infinity);
+ };
+
+ // An internal function for creating assigner functions.
+ var createAssigner = function(keysFunc, undefinedOnly) {
+ return function(obj) {
+ var length = arguments.length;
+ if (length < 2 || obj == null) return obj;
+ for (var index = 1; index < length; index++) {
+ var source = arguments[index],
+ keys = keysFunc(source),
+ l = keys.length;
+ for (var i = 0; i < l; i++) {
+ var key = keys[i];
+ if (!undefinedOnly || obj[key] === void 0) obj[key] = source[key];
+ }
+ }
+ return obj;
+ };
+ };
+
+ // An internal function for creating a new object that inherits from another.
+ var baseCreate = function(prototype) {
+ if (!_.isObject(prototype)) return {};
+ if (nativeCreate) return nativeCreate(prototype);
+ Ctor.prototype = prototype;
+ var result = new Ctor;
+ Ctor.prototype = null;
+ return result;
+ };
+
+ var property = function(key) {
+ return function(obj) {
+ return obj == null ? void 0 : obj[key];
+ };
+ };
+
+ // Helper for collection methods to determine whether a collection
+ // should be iterated as an array or as an object
+ // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
+ // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094
+ var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
+ var getLength = property('length');
+ var isArrayLike = function(collection) {
+ var length = getLength(collection);
+ return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
+ };
+
+ // Collection Functions
+ // --------------------
+
+ // The cornerstone, an `each` implementation, aka `forEach`.
+ // Handles raw objects in addition to array-likes. Treats all
+ // sparse array-likes as if they were dense.
+ _.each = _.forEach = function(obj, iteratee, context) {
+ iteratee = optimizeCb(iteratee, context);
+ var i, length;
+ if (isArrayLike(obj)) {
+ for (i = 0, length = obj.length; i < length; i++) {
+ iteratee(obj[i], i, obj);
+ }
+ } else {
+ var keys = _.keys(obj);
+ for (i = 0, length = keys.length; i < length; i++) {
+ iteratee(obj[keys[i]], keys[i], obj);
+ }
+ }
+ return obj;
+ };
+
+ // Return the results of applying the iteratee to each element.
+ _.map = _.collect = function(obj, iteratee, context) {
+ iteratee = cb(iteratee, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length,
+ results = Array(length);
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ results[index] = iteratee(obj[currentKey], currentKey, obj);
+ }
+ return results;
+ };
+
+ // Create a reducing function iterating left or right.
+ function createReduce(dir) {
+ // Optimized iterator function as using arguments.length
+ // in the main function will deoptimize the, see #1991.
+ function iterator(obj, iteratee, memo, keys, index, length) {
+ for (; index >= 0 && index < length; index += dir) {
+ var currentKey = keys ? keys[index] : index;
+ memo = iteratee(memo, obj[currentKey], currentKey, obj);
+ }
+ return memo;
+ }
+
+ return function(obj, iteratee, memo, context) {
+ iteratee = optimizeCb(iteratee, context, 4);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length,
+ index = dir > 0 ? 0 : length - 1;
+ // Determine the initial value if none is provided.
+ if (arguments.length < 3) {
+ memo = obj[keys ? keys[index] : index];
+ index += dir;
+ }
+ return iterator(obj, iteratee, memo, keys, index, length);
+ };
+ }
+
+ // **Reduce** builds up a single result from a list of values, aka `inject`,
+ // or `foldl`.
+ _.reduce = _.foldl = _.inject = createReduce(1);
+
+ // The right-associative version of reduce, also known as `foldr`.
+ _.reduceRight = _.foldr = createReduce(-1);
+
+ // Return the first value which passes a truth test. Aliased as `detect`.
+ _.find = _.detect = function(obj, predicate, context) {
+ var key;
+ if (isArrayLike(obj)) {
+ key = _.findIndex(obj, predicate, context);
+ } else {
+ key = _.findKey(obj, predicate, context);
+ }
+ if (key !== void 0 && key !== -1) return obj[key];
+ };
+
+ // Return all the elements that pass a truth test.
+ // Aliased as `select`.
+ _.filter = _.select = function(obj, predicate, context) {
+ var results = [];
+ predicate = cb(predicate, context);
+ _.each(obj, function(value, index, list) {
+ if (predicate(value, index, list)) results.push(value);
+ });
+ return results;
+ };
+
+ // Return all the elements for which a truth test fails.
+ _.reject = function(obj, predicate, context) {
+ return _.filter(obj, _.negate(cb(predicate)), context);
+ };
+
+ // Determine whether all of the elements match a truth test.
+ // Aliased as `all`.
+ _.every = _.all = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length;
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ if (!predicate(obj[currentKey], currentKey, obj)) return false;
+ }
+ return true;
+ };
+
+ // Determine if at least one element in the object matches a truth test.
+ // Aliased as `any`.
+ _.some = _.any = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = !isArrayLike(obj) && _.keys(obj),
+ length = (keys || obj).length;
+ for (var index = 0; index < length; index++) {
+ var currentKey = keys ? keys[index] : index;
+ if (predicate(obj[currentKey], currentKey, obj)) return true;
+ }
+ return false;
+ };
+
+ // Determine if the array or object contains a given item (using `===`).
+ // Aliased as `includes` and `include`.
+ _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) {
+ if (!isArrayLike(obj)) obj = _.values(obj);
+ if (typeof fromIndex != 'number' || guard) fromIndex = 0;
+ return _.indexOf(obj, item, fromIndex) >= 0;
+ };
+
+ // Invoke a method (with arguments) on every item in a collection.
+ _.invoke = function(obj, method) {
+ var args = slice.call(arguments, 2);
+ var isFunc = _.isFunction(method);
+ return _.map(obj, function(value) {
+ var func = isFunc ? method : value[method];
+ return func == null ? func : func.apply(value, args);
+ });
+ };
+
+ // Convenience version of a common use case of `map`: fetching a property.
+ _.pluck = function(obj, key) {
+ return _.map(obj, _.property(key));
+ };
+
+ // Convenience version of a common use case of `filter`: selecting only objects
+ // containing specific `key:value` pairs.
+ _.where = function(obj, attrs) {
+ return _.filter(obj, _.matcher(attrs));
+ };
+
+ // Convenience version of a common use case of `find`: getting the first object
+ // containing specific `key:value` pairs.
+ _.findWhere = function(obj, attrs) {
+ return _.find(obj, _.matcher(attrs));
+ };
+
+ // Return the maximum element (or element-based computation).
+ _.max = function(obj, iteratee, context) {
+ var result = -Infinity, lastComputed = -Infinity,
+ value, computed;
+ if (iteratee == null && obj != null) {
+ obj = isArrayLike(obj) ? obj : _.values(obj);
+ for (var i = 0, length = obj.length; i < length; i++) {
+ value = obj[i];
+ if (value > result) {
+ result = value;
+ }
+ }
+ } else {
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(value, index, list) {
+ computed = iteratee(value, index, list);
+ if (computed > lastComputed || computed === -Infinity && result === -Infinity) {
+ result = value;
+ lastComputed = computed;
+ }
+ });
+ }
+ return result;
+ };
+
+ // Return the minimum element (or element-based computation).
+ _.min = function(obj, iteratee, context) {
+ var result = Infinity, lastComputed = Infinity,
+ value, computed;
+ if (iteratee == null && obj != null) {
+ obj = isArrayLike(obj) ? obj : _.values(obj);
+ for (var i = 0, length = obj.length; i < length; i++) {
+ value = obj[i];
+ if (value < result) {
+ result = value;
+ }
+ }
+ } else {
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(value, index, list) {
+ computed = iteratee(value, index, list);
+ if (computed < lastComputed || computed === Infinity && result === Infinity) {
+ result = value;
+ lastComputed = computed;
+ }
+ });
+ }
+ return result;
+ };
+
+ // Shuffle a collection, using the modern version of the
+ // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
+ _.shuffle = function(obj) {
+ var set = isArrayLike(obj) ? obj : _.values(obj);
+ var length = set.length;
+ var shuffled = Array(length);
+ for (var index = 0, rand; index < length; index++) {
+ rand = _.random(0, index);
+ if (rand !== index) shuffled[index] = shuffled[rand];
+ shuffled[rand] = set[index];
+ }
+ return shuffled;
+ };
+
+ // Sample **n** random values from a collection.
+ // If **n** is not specified, returns a single random element.
+ // The internal `guard` argument allows it to work with `map`.
+ _.sample = function(obj, n, guard) {
+ if (n == null || guard) {
+ if (!isArrayLike(obj)) obj = _.values(obj);
+ return obj[_.random(obj.length - 1)];
+ }
+ return _.shuffle(obj).slice(0, Math.max(0, n));
+ };
+
+ // Sort the object's values by a criterion produced by an iteratee.
+ _.sortBy = function(obj, iteratee, context) {
+ iteratee = cb(iteratee, context);
+ return _.pluck(_.map(obj, function(value, index, list) {
+ return {
+ value: value,
+ index: index,
+ criteria: iteratee(value, index, list)
+ };
+ }).sort(function(left, right) {
+ var a = left.criteria;
+ var b = right.criteria;
+ if (a !== b) {
+ if (a > b || a === void 0) return 1;
+ if (a < b || b === void 0) return -1;
+ }
+ return left.index - right.index;
+ }), 'value');
+ };
+
+ // An internal function used for aggregate "group by" operations.
+ var group = function(behavior) {
+ return function(obj, iteratee, context) {
+ var result = {};
+ iteratee = cb(iteratee, context);
+ _.each(obj, function(value, index) {
+ var key = iteratee(value, index, obj);
+ behavior(result, value, key);
+ });
+ return result;
+ };
+ };
+
+ // Groups the object's values by a criterion. Pass either a string attribute
+ // to group by, or a function that returns the criterion.
+ _.groupBy = group(function(result, value, key) {
+ if (_.has(result, key)) result[key].push(value); else result[key] = [value];
+ });
+
+ // Indexes the object's values by a criterion, similar to `groupBy`, but for
+ // when you know that your index values will be unique.
+ _.indexBy = group(function(result, value, key) {
+ result[key] = value;
+ });
+
+ // Counts instances of an object that group by a certain criterion. Pass
+ // either a string attribute to count by, or a function that returns the
+ // criterion.
+ _.countBy = group(function(result, value, key) {
+ if (_.has(result, key)) result[key]++; else result[key] = 1;
+ });
+
+ // Safely create a real, live array from anything iterable.
+ _.toArray = function(obj) {
+ if (!obj) return [];
+ if (_.isArray(obj)) return slice.call(obj);
+ if (isArrayLike(obj)) return _.map(obj, _.identity);
+ return _.values(obj);
+ };
+
+ // Return the number of elements in an object.
+ _.size = function(obj) {
+ if (obj == null) return 0;
+ return isArrayLike(obj) ? obj.length : _.keys(obj).length;
+ };
+
+ // Split a collection into two arrays: one whose elements all satisfy the given
+ // predicate, and one whose elements all do not satisfy the predicate.
+ _.partition = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var pass = [], fail = [];
+ _.each(obj, function(value, key, obj) {
+ (predicate(value, key, obj) ? pass : fail).push(value);
+ });
+ return [pass, fail];
+ };
+
+ // Array Functions
+ // ---------------
+
+ // Get the first element of an array. Passing **n** will return the first N
+ // values in the array. Aliased as `head` and `take`. The **guard** check
+ // allows it to work with `_.map`.
+ _.first = _.head = _.take = function(array, n, guard) {
+ if (array == null) return void 0;
+ if (n == null || guard) return array[0];
+ return _.initial(array, array.length - n);
+ };
+
+ // Returns everything but the last entry of the array. Especially useful on
+ // the arguments object. Passing **n** will return all the values in
+ // the array, excluding the last N.
+ _.initial = function(array, n, guard) {
+ return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));
+ };
+
+ // Get the last element of an array. Passing **n** will return the last N
+ // values in the array.
+ _.last = function(array, n, guard) {
+ if (array == null) return void 0;
+ if (n == null || guard) return array[array.length - 1];
+ return _.rest(array, Math.max(0, array.length - n));
+ };
+
+ // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+ // Especially useful on the arguments object. Passing an **n** will return
+ // the rest N values in the array.
+ _.rest = _.tail = _.drop = function(array, n, guard) {
+ return slice.call(array, n == null || guard ? 1 : n);
+ };
+
+ // Trim out all falsy values from an array.
+ _.compact = function(array) {
+ return _.filter(array, _.identity);
+ };
+
+ // Internal implementation of a recursive `flatten` function.
+ var flatten = function(input, shallow, strict, startIndex) {
+ var output = [], idx = 0;
+ for (var i = startIndex || 0, length = getLength(input); i < length; i++) {
+ var value = input[i];
+ if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {
+ //flatten current level of array or arguments object
+ if (!shallow) value = flatten(value, shallow, strict);
+ var j = 0, len = value.length;
+ output.length += len;
+ while (j < len) {
+ output[idx++] = value[j++];
+ }
+ } else if (!strict) {
+ output[idx++] = value;
+ }
+ }
+ return output;
+ };
+
+ // Flatten out an array, either recursively (by default), or just one level.
+ _.flatten = function(array, shallow) {
+ return flatten(array, shallow, false);
+ };
+
+ // Return a version of the array that does not contain the specified value(s).
+ _.without = function(array) {
+ return _.difference(array, slice.call(arguments, 1));
+ };
+
+ // Produce a duplicate-free version of the array. If the array has already
+ // been sorted, you have the option of using a faster algorithm.
+ // Aliased as `unique`.
+ _.uniq = _.unique = function(array, isSorted, iteratee, context) {
+ if (!_.isBoolean(isSorted)) {
+ context = iteratee;
+ iteratee = isSorted;
+ isSorted = false;
+ }
+ if (iteratee != null) iteratee = cb(iteratee, context);
+ var result = [];
+ var seen = [];
+ for (var i = 0, length = getLength(array); i < length; i++) {
+ var value = array[i],
+ computed = iteratee ? iteratee(value, i, array) : value;
+ if (isSorted) {
+ if (!i || seen !== computed) result.push(value);
+ seen = computed;
+ } else if (iteratee) {
+ if (!_.contains(seen, computed)) {
+ seen.push(computed);
+ result.push(value);
+ }
+ } else if (!_.contains(result, value)) {
+ result.push(value);
+ }
+ }
+ return result;
+ };
+
+ // Produce an array that contains the union: each distinct element from all of
+ // the passed-in arrays.
+ _.union = function() {
+ return _.uniq(flatten(arguments, true, true));
+ };
+
+ // Produce an array that contains every item shared between all the
+ // passed-in arrays.
+ _.intersection = function(array) {
+ var result = [];
+ var argsLength = arguments.length;
+ for (var i = 0, length = getLength(array); i < length; i++) {
+ var item = array[i];
+ if (_.contains(result, item)) continue;
+ for (var j = 1; j < argsLength; j++) {
+ if (!_.contains(arguments[j], item)) break;
+ }
+ if (j === argsLength) result.push(item);
+ }
+ return result;
+ };
+
+ // Take the difference between one array and a number of other arrays.
+ // Only the elements present in just the first array will remain.
+ _.difference = function(array) {
+ var rest = flatten(arguments, true, true, 1);
+ return _.filter(array, function(value){
+ return !_.contains(rest, value);
+ });
+ };
+
+ // Zip together multiple lists into a single array -- elements that share
+ // an index go together.
+ _.zip = function() {
+ return _.unzip(arguments);
+ };
+
+ // Complement of _.zip. Unzip accepts an array of arrays and groups
+ // each array's elements on shared indices
+ _.unzip = function(array) {
+ var length = array && _.max(array, getLength).length || 0;
+ var result = Array(length);
+
+ for (var index = 0; index < length; index++) {
+ result[index] = _.pluck(array, index);
+ }
+ return result;
+ };
+
+ // Converts lists into objects. Pass either a single array of `[key, value]`
+ // pairs, or two parallel arrays of the same length -- one of keys, and one of
+ // the corresponding values.
+ _.object = function(list, values) {
+ var result = {};
+ for (var i = 0, length = getLength(list); i < length; i++) {
+ if (values) {
+ result[list[i]] = values[i];
+ } else {
+ result[list[i][0]] = list[i][1];
+ }
+ }
+ return result;
+ };
+
+ // Generator function to create the findIndex and findLastIndex functions
+ function createPredicateIndexFinder(dir) {
+ return function(array, predicate, context) {
+ predicate = cb(predicate, context);
+ var length = getLength(array);
+ var index = dir > 0 ? 0 : length - 1;
+ for (; index >= 0 && index < length; index += dir) {
+ if (predicate(array[index], index, array)) return index;
+ }
+ return -1;
+ };
+ }
+
+ // Returns the first index on an array-like that passes a predicate test
+ _.findIndex = createPredicateIndexFinder(1);
+ _.findLastIndex = createPredicateIndexFinder(-1);
+
+ // Use a comparator function to figure out the smallest index at which
+ // an object should be inserted so as to maintain order. Uses binary search.
+ _.sortedIndex = function(array, obj, iteratee, context) {
+ iteratee = cb(iteratee, context, 1);
+ var value = iteratee(obj);
+ var low = 0, high = getLength(array);
+ while (low < high) {
+ var mid = Math.floor((low + high) / 2);
+ if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
+ }
+ return low;
+ };
+
+ // Generator function to create the indexOf and lastIndexOf functions
+ function createIndexFinder(dir, predicateFind, sortedIndex) {
+ return function(array, item, idx) {
+ var i = 0, length = getLength(array);
+ if (typeof idx == 'number') {
+ if (dir > 0) {
+ i = idx >= 0 ? idx : Math.max(idx + length, i);
+ } else {
+ length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;
+ }
+ } else if (sortedIndex && idx && length) {
+ idx = sortedIndex(array, item);
+ return array[idx] === item ? idx : -1;
+ }
+ if (item !== item) {
+ idx = predicateFind(slice.call(array, i, length), _.isNaN);
+ return idx >= 0 ? idx + i : -1;
+ }
+ for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {
+ if (array[idx] === item) return idx;
+ }
+ return -1;
+ };
+ }
+
+ // Return the position of the first occurrence of an item in an array,
+ // or -1 if the item is not included in the array.
+ // If the array is large and already in sort order, pass `true`
+ // for **isSorted** to use binary search.
+ _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex);
+ _.lastIndexOf = createIndexFinder(-1, _.findLastIndex);
+
+ // Generate an integer Array containing an arithmetic progression. A port of
+ // the native Python `range()` function. See
+ // [the Python documentation](http://docs.python.org/library/functions.html#range).
+ _.range = function(start, stop, step) {
+ if (stop == null) {
+ stop = start || 0;
+ start = 0;
+ }
+ step = step || 1;
+
+ var length = Math.max(Math.ceil((stop - start) / step), 0);
+ var range = Array(length);
+
+ for (var idx = 0; idx < length; idx++, start += step) {
+ range[idx] = start;
+ }
+
+ return range;
+ };
+
+ // Function (ahem) Functions
+ // ------------------
+
+ // Determines whether to execute a function as a constructor
+ // or a normal function with the provided arguments
+ var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {
+ if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
+ var self = baseCreate(sourceFunc.prototype);
+ var result = sourceFunc.apply(self, args);
+ if (_.isObject(result)) return result;
+ return self;
+ };
+
+ // Create a function bound to a given object (assigning `this`, and arguments,
+ // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
+ // available.
+ _.bind = function(func, context) {
+ if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+ if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
+ var args = slice.call(arguments, 2);
+ var bound = function() {
+ return executeBound(func, bound, context, this, args.concat(slice.call(arguments)));
+ };
+ return bound;
+ };
+
+ // Partially apply a function by creating a version that has had some of its
+ // arguments pre-filled, without changing its dynamic `this` context. _ acts
+ // as a placeholder, allowing any combination of arguments to be pre-filled.
+ _.partial = function(func) {
+ var boundArgs = slice.call(arguments, 1);
+ var bound = function() {
+ var position = 0, length = boundArgs.length;
+ var args = Array(length);
+ for (var i = 0; i < length; i++) {
+ args[i] = boundArgs[i] === _ ? arguments[position++] : boundArgs[i];
+ }
+ while (position < arguments.length) args.push(arguments[position++]);
+ return executeBound(func, bound, this, this, args);
+ };
+ return bound;
+ };
+
+ // Bind a number of an object's methods to that object. Remaining arguments
+ // are the method names to be bound. Useful for ensuring that all callbacks
+ // defined on an object belong to it.
+ _.bindAll = function(obj) {
+ var i, length = arguments.length, key;
+ if (length <= 1) throw new Error('bindAll must be passed function names');
+ for (i = 1; i < length; i++) {
+ key = arguments[i];
+ obj[key] = _.bind(obj[key], obj);
+ }
+ return obj;
+ };
+
+ // Memoize an expensive function by storing its results.
+ _.memoize = function(func, hasher) {
+ var memoize = function(key) {
+ var cache = memoize.cache;
+ var address = '' + (hasher ? hasher.apply(this, arguments) : key);
+ if (!_.has(cache, address)) cache[address] = func.apply(this, arguments);
+ return cache[address];
+ };
+ memoize.cache = {};
+ return memoize;
+ };
+
+ // Delays a function for the given number of milliseconds, and then calls
+ // it with the arguments supplied.
+ _.delay = function(func, wait) {
+ var args = slice.call(arguments, 2);
+ return setTimeout(function(){
+ return func.apply(null, args);
+ }, wait);
+ };
+
+ // Defers a function, scheduling it to run after the current call stack has
+ // cleared.
+ _.defer = _.partial(_.delay, _, 1);
+
+ // Returns a function, that, when invoked, will only be triggered at most once
+ // during a given window of time. Normally, the throttled function will run
+ // as much as it can, without ever going more than once per `wait` duration;
+ // but if you'd like to disable the execution on the leading edge, pass
+ // `{leading: false}`. To disable execution on the trailing edge, ditto.
+ _.throttle = function(func, wait, options) {
+ var context, args, result;
+ var timeout = null;
+ var previous = 0;
+ if (!options) options = {};
+ var later = function() {
+ previous = options.leading === false ? 0 : _.now();
+ timeout = null;
+ result = func.apply(context, args);
+ if (!timeout) context = args = null;
+ };
+ return function() {
+ var now = _.now();
+ if (!previous && options.leading === false) previous = now;
+ var remaining = wait - (now - previous);
+ context = this;
+ args = arguments;
+ if (remaining <= 0 || remaining > wait) {
+ if (timeout) {
+ clearTimeout(timeout);
+ timeout = null;
+ }
+ previous = now;
+ result = func.apply(context, args);
+ if (!timeout) context = args = null;
+ } else if (!timeout && options.trailing !== false) {
+ timeout = setTimeout(later, remaining);
+ }
+ return result;
+ };
+ };
+
+ // Returns a function, that, as long as it continues to be invoked, will not
+ // be triggered. The function will be called after it stops being called for
+ // N milliseconds. If `immediate` is passed, trigger the function on the
+ // leading edge, instead of the trailing.
+ _.debounce = function(func, wait, immediate) {
+ var timeout, args, context, timestamp, result;
+
+ var later = function() {
+ var last = _.now() - timestamp;
+
+ if (last < wait && last >= 0) {
+ timeout = setTimeout(later, wait - last);
+ } else {
+ timeout = null;
+ if (!immediate) {
+ result = func.apply(context, args);
+ if (!timeout) context = args = null;
+ }
+ }
+ };
+
+ return function() {
+ context = this;
+ args = arguments;
+ timestamp = _.now();
+ var callNow = immediate && !timeout;
+ if (!timeout) timeout = setTimeout(later, wait);
+ if (callNow) {
+ result = func.apply(context, args);
+ context = args = null;
+ }
+
+ return result;
+ };
+ };
+
+ // Returns the first function passed as an argument to the second,
+ // allowing you to adjust arguments, run code before and after, and
+ // conditionally execute the original function.
+ _.wrap = function(func, wrapper) {
+ return _.partial(wrapper, func);
+ };
+
+ // Returns a negated version of the passed-in predicate.
+ _.negate = function(predicate) {
+ return function() {
+ return !predicate.apply(this, arguments);
+ };
+ };
+
+ // Returns a function that is the composition of a list of functions, each
+ // consuming the return value of the function that follows.
+ _.compose = function() {
+ var args = arguments;
+ var start = args.length - 1;
+ return function() {
+ var i = start;
+ var result = args[start].apply(this, arguments);
+ while (i--) result = args[i].call(this, result);
+ return result;
+ };
+ };
+
+ // Returns a function that will only be executed on and after the Nth call.
+ _.after = function(times, func) {
+ return function() {
+ if (--times < 1) {
+ return func.apply(this, arguments);
+ }
+ };
+ };
+
+ // Returns a function that will only be executed up to (but not including) the Nth call.
+ _.before = function(times, func) {
+ var memo;
+ return function() {
+ if (--times > 0) {
+ memo = func.apply(this, arguments);
+ }
+ if (times <= 1) func = null;
+ return memo;
+ };
+ };
+
+ // Returns a function that will be executed at most one time, no matter how
+ // often you call it. Useful for lazy initialization.
+ _.once = _.partial(_.before, 2);
+
+ // Object Functions
+ // ----------------
+
+ // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
+ var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
+ var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
+ 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];
+
+ function collectNonEnumProps(obj, keys) {
+ var nonEnumIdx = nonEnumerableProps.length;
+ var constructor = obj.constructor;
+ var proto = (_.isFunction(constructor) && constructor.prototype) || ObjProto;
+
+ // Constructor is a special case.
+ var prop = 'constructor';
+ if (_.has(obj, prop) && !_.contains(keys, prop)) keys.push(prop);
+
+ while (nonEnumIdx--) {
+ prop = nonEnumerableProps[nonEnumIdx];
+ if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) {
+ keys.push(prop);
+ }
+ }
+ }
+
+ // Retrieve the names of an object's own properties.
+ // Delegates to **ECMAScript 5**'s native `Object.keys`
+ _.keys = function(obj) {
+ if (!_.isObject(obj)) return [];
+ if (nativeKeys) return nativeKeys(obj);
+ var keys = [];
+ for (var key in obj) if (_.has(obj, key)) keys.push(key);
+ // Ahem, IE < 9.
+ if (hasEnumBug) collectNonEnumProps(obj, keys);
+ return keys;
+ };
+
+ // Retrieve all the property names of an object.
+ _.allKeys = function(obj) {
+ if (!_.isObject(obj)) return [];
+ var keys = [];
+ for (var key in obj) keys.push(key);
+ // Ahem, IE < 9.
+ if (hasEnumBug) collectNonEnumProps(obj, keys);
+ return keys;
+ };
+
+ // Retrieve the values of an object's properties.
+ _.values = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var values = Array(length);
+ for (var i = 0; i < length; i++) {
+ values[i] = obj[keys[i]];
+ }
+ return values;
+ };
+
+ // Returns the results of applying the iteratee to each element of the object
+ // In contrast to _.map it returns an object
+ _.mapObject = function(obj, iteratee, context) {
+ iteratee = cb(iteratee, context);
+ var keys = _.keys(obj),
+ length = keys.length,
+ results = {},
+ currentKey;
+ for (var index = 0; index < length; index++) {
+ currentKey = keys[index];
+ results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
+ }
+ return results;
+ };
+
+ // Convert an object into a list of `[key, value]` pairs.
+ _.pairs = function(obj) {
+ var keys = _.keys(obj);
+ var length = keys.length;
+ var pairs = Array(length);
+ for (var i = 0; i < length; i++) {
+ pairs[i] = [keys[i], obj[keys[i]]];
+ }
+ return pairs;
+ };
+
+ // Invert the keys and values of an object. The values must be serializable.
+ _.invert = function(obj) {
+ var result = {};
+ var keys = _.keys(obj);
+ for (var i = 0, length = keys.length; i < length; i++) {
+ result[obj[keys[i]]] = keys[i];
+ }
+ return result;
+ };
+
+ // Return a sorted list of the function names available on the object.
+ // Aliased as `methods`
+ _.functions = _.methods = function(obj) {
+ var names = [];
+ for (var key in obj) {
+ if (_.isFunction(obj[key])) names.push(key);
+ }
+ return names.sort();
+ };
+
+ // Extend a given object with all the properties in passed-in object(s).
+ _.extend = createAssigner(_.allKeys);
+
+ // Assigns a given object with all the own properties in the passed-in object(s)
+ // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
+ _.extendOwn = _.assign = createAssigner(_.keys);
+
+ // Returns the first key on an object that passes a predicate test
+ _.findKey = function(obj, predicate, context) {
+ predicate = cb(predicate, context);
+ var keys = _.keys(obj), key;
+ for (var i = 0, length = keys.length; i < length; i++) {
+ key = keys[i];
+ if (predicate(obj[key], key, obj)) return key;
+ }
+ };
+
+ // Return a copy of the object only containing the whitelisted properties.
+ _.pick = function(object, oiteratee, context) {
+ var result = {}, obj = object, iteratee, keys;
+ if (obj == null) return result;
+ if (_.isFunction(oiteratee)) {
+ keys = _.allKeys(obj);
+ iteratee = optimizeCb(oiteratee, context);
+ } else {
+ keys = flatten(arguments, false, false, 1);
+ iteratee = function(value, key, obj) { return key in obj; };
+ obj = Object(obj);
+ }
+ for (var i = 0, length = keys.length; i < length; i++) {
+ var key = keys[i];
+ var value = obj[key];
+ if (iteratee(value, key, obj)) result[key] = value;
+ }
+ return result;
+ };
+
+ // Return a copy of the object without the blacklisted properties.
+ _.omit = function(obj, iteratee, context) {
+ if (_.isFunction(iteratee)) {
+ iteratee = _.negate(iteratee);
+ } else {
+ var keys = _.map(flatten(arguments, false, false, 1), String);
+ iteratee = function(value, key) {
+ return !_.contains(keys, key);
+ };
+ }
+ return _.pick(obj, iteratee, context);
+ };
+
+ // Fill in a given object with default properties.
+ _.defaults = createAssigner(_.allKeys, true);
+
+ // Creates an object that inherits from the given prototype object.
+ // If additional properties are provided then they will be added to the
+ // created object.
+ _.create = function(prototype, props) {
+ var result = baseCreate(prototype);
+ if (props) _.extendOwn(result, props);
+ return result;
+ };
+
+ // Create a (shallow-cloned) duplicate of an object.
+ _.clone = function(obj) {
+ if (!_.isObject(obj)) return obj;
+ return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+ };
+
+ // Invokes interceptor with the obj, and then returns obj.
+ // The primary purpose of this method is to "tap into" a method chain, in
+ // order to perform operations on intermediate results within the chain.
+ _.tap = function(obj, interceptor) {
+ interceptor(obj);
+ return obj;
+ };
+
+ // Returns whether an object has a given set of `key:value` pairs.
+ _.isMatch = function(object, attrs) {
+ var keys = _.keys(attrs), length = keys.length;
+ if (object == null) return !length;
+ var obj = Object(object);
+ for (var i = 0; i < length; i++) {
+ var key = keys[i];
+ if (attrs[key] !== obj[key] || !(key in obj)) return false;
+ }
+ return true;
+ };
+
+
+ // Internal recursive comparison function for `isEqual`.
+ var eq = function(a, b, aStack, bStack) {
+ // Identical objects are equal. `0 === -0`, but they aren't identical.
+ // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
+ if (a === b) return a !== 0 || 1 / a === 1 / b;
+ // A strict comparison is necessary because `null == undefined`.
+ if (a == null || b == null) return a === b;
+ // Unwrap any wrapped objects.
+ if (a instanceof _) a = a._wrapped;
+ if (b instanceof _) b = b._wrapped;
+ // Compare `[[Class]]` names.
+ var className = toString.call(a);
+ if (className !== toString.call(b)) return false;
+ switch (className) {
+ // Strings, numbers, regular expressions, dates, and booleans are compared by value.
+ case '[object RegExp]':
+ // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')
+ case '[object String]':
+ // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+ // equivalent to `new String("5")`.
+ return '' + a === '' + b;
+ case '[object Number]':
+ // `NaN`s are equivalent, but non-reflexive.
+ // Object(NaN) is equivalent to NaN
+ if (+a !== +a) return +b !== +b;
+ // An `egal` comparison is performed for other numeric values.
+ return +a === 0 ? 1 / +a === 1 / b : +a === +b;
+ case '[object Date]':
+ case '[object Boolean]':
+ // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+ // millisecond representations. Note that invalid dates with millisecond representations
+ // of `NaN` are not equivalent.
+ return +a === +b;
+ }
+
+ var areArrays = className === '[object Array]';
+ if (!areArrays) {
+ if (typeof a != 'object' || typeof b != 'object') return false;
+
+ // Objects with different constructors are not equivalent, but `Object`s or `Array`s
+ // from different frames are.
+ var aCtor = a.constructor, bCtor = b.constructor;
+ if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&
+ _.isFunction(bCtor) && bCtor instanceof bCtor)
+ && ('constructor' in a && 'constructor' in b)) {
+ return false;
+ }
+ }
+ // Assume equality for cyclic structures. The algorithm for detecting cyclic
+ // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+
+ // Initializing stack of traversed objects.
+ // It's done here since we only need them for objects and arrays comparison.
+ aStack = aStack || [];
+ bStack = bStack || [];
+ var length = aStack.length;
+ while (length--) {
+ // Linear search. Performance is inversely proportional to the number of
+ // unique nested structures.
+ if (aStack[length] === a) return bStack[length] === b;
+ }
+
+ // Add the first object to the stack of traversed objects.
+ aStack.push(a);
+ bStack.push(b);
+
+ // Recursively compare objects and arrays.
+ if (areArrays) {
+ // Compare array lengths to determine if a deep comparison is necessary.
+ length = a.length;
+ if (length !== b.length) return false;
+ // Deep compare the contents, ignoring non-numeric properties.
+ while (length--) {
+ if (!eq(a[length], b[length], aStack, bStack)) return false;
+ }
+ } else {
+ // Deep compare objects.
+ var keys = _.keys(a), key;
+ length = keys.length;
+ // Ensure that both objects contain the same number of properties before comparing deep equality.
+ if (_.keys(b).length !== length) return false;
+ while (length--) {
+ // Deep compare each member
+ key = keys[length];
+ if (!(_.has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
+ }
+ }
+ // Remove the first object from the stack of traversed objects.
+ aStack.pop();
+ bStack.pop();
+ return true;
+ };
+
+ // Perform a deep comparison to check if two objects are equal.
+ _.isEqual = function(a, b) {
+ return eq(a, b);
+ };
+
+ // Is a given array, string, or object empty?
+ // An "empty" object has no enumerable own-properties.
+ _.isEmpty = function(obj) {
+ if (obj == null) return true;
+ if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
+ return _.keys(obj).length === 0;
+ };
+
+ // Is a given value a DOM element?
+ _.isElement = function(obj) {
+ return !!(obj && obj.nodeType === 1);
+ };
+
+ // Is a given value an array?
+ // Delegates to ECMA5's native Array.isArray
+ _.isArray = nativeIsArray || function(obj) {
+ return toString.call(obj) === '[object Array]';
+ };
+
+ // Is a given variable an object?
+ _.isObject = function(obj) {
+ var type = typeof obj;
+ return type === 'function' || type === 'object' && !!obj;
+ };
+
+ // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError.
+ _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error'], function(name) {
+ _['is' + name] = function(obj) {
+ return toString.call(obj) === '[object ' + name + ']';
+ };
+ });
+
+ // Define a fallback version of the method in browsers (ahem, IE < 9), where
+ // there isn't any inspectable "Arguments" type.
+ if (!_.isArguments(arguments)) {
+ _.isArguments = function(obj) {
+ return _.has(obj, 'callee');
+ };
+ }
+
+ // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,
+ // IE 11 (#1621), and in Safari 8 (#1929).
+ if (typeof /./ != 'function' && typeof Int8Array != 'object') {
+ _.isFunction = function(obj) {
+ return typeof obj == 'function' || false;
+ };
+ }
+
+ // Is a given object a finite number?
+ _.isFinite = function(obj) {
+ return isFinite(obj) && !isNaN(parseFloat(obj));
+ };
+
+ // Is the given value `NaN`? (NaN is the only number which does not equal itself).
+ _.isNaN = function(obj) {
+ return _.isNumber(obj) && obj !== +obj;
+ };
+
+ // Is a given value a boolean?
+ _.isBoolean = function(obj) {
+ return obj === true || obj === false || toString.call(obj) === '[object Boolean]';
+ };
+
+ // Is a given value equal to null?
+ _.isNull = function(obj) {
+ return obj === null;
+ };
+
+ // Is a given variable undefined?
+ _.isUndefined = function(obj) {
+ return obj === void 0;
+ };
+
+ // Shortcut function for checking if an object has a given property directly
+ // on itself (in other words, not on a prototype).
+ _.has = function(obj, key) {
+ return obj != null && hasOwnProperty.call(obj, key);
+ };
+
+ // Utility Functions
+ // -----------------
+
+ // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+ // previous owner. Returns a reference to the Underscore object.
+ _.noConflict = function() {
+ root._ = previousUnderscore;
+ return this;
+ };
+
+ // Keep the identity function around for default iteratees.
+ _.identity = function(value) {
+ return value;
+ };
+
+ // Predicate-generating functions. Often useful outside of Underscore.
+ _.constant = function(value) {
+ return function() {
+ return value;
+ };
+ };
+
+ _.noop = function(){};
+
+ _.property = property;
+
+ // Generates a function for a given object that returns a given property.
+ _.propertyOf = function(obj) {
+ return obj == null ? function(){} : function(key) {
+ return obj[key];
+ };
+ };
+
+ // Returns a predicate for checking whether an object has a given set of
+ // `key:value` pairs.
+ _.matcher = _.matches = function(attrs) {
+ attrs = _.extendOwn({}, attrs);
+ return function(obj) {
+ return _.isMatch(obj, attrs);
+ };
+ };
+
+ // Run a function **n** times.
+ _.times = function(n, iteratee, context) {
+ var accum = Array(Math.max(0, n));
+ iteratee = optimizeCb(iteratee, context, 1);
+ for (var i = 0; i < n; i++) accum[i] = iteratee(i);
+ return accum;
+ };
+
+ // Return a random integer between min and max (inclusive).
+ _.random = function(min, max) {
+ if (max == null) {
+ max = min;
+ min = 0;
+ }
+ return min + Math.floor(Math.random() * (max - min + 1));
+ };
+
+ // A (possibly faster) way to get the current timestamp as an integer.
+ _.now = Date.now || function() {
+ return new Date().getTime();
+ };
+
+ // List of HTML entities for escaping.
+ var escapeMap = {
+ '&': '&amp;',
+ '<': '&lt;',
+ '>': '&gt;',
+ '"': '&quot;',
+ "'": '&#x27;',
+ '`': '&#x60;'
+ };
+ var unescapeMap = _.invert(escapeMap);
+
+ // Functions for escaping and unescaping strings to/from HTML interpolation.
+ var createEscaper = function(map) {
+ var escaper = function(match) {
+ return map[match];
+ };
+ // Regexes for identifying a key that needs to be escaped
+ var source = '(?:' + _.keys(map).join('|') + ')';
+ var testRegexp = RegExp(source);
+ var replaceRegexp = RegExp(source, 'g');
+ return function(string) {
+ string = string == null ? '' : '' + string;
+ return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
+ };
+ };
+ _.escape = createEscaper(escapeMap);
+ _.unescape = createEscaper(unescapeMap);
+
+ // If the value of the named `property` is a function then invoke it with the
+ // `object` as context; otherwise, return it.
+ _.result = function(object, property, fallback) {
+ var value = object == null ? void 0 : object[property];
+ if (value === void 0) {
+ value = fallback;
+ }
+ return _.isFunction(value) ? value.call(object) : value;
+ };
+
+ // Generate a unique integer id (unique within the entire client session).
+ // Useful for temporary DOM ids.
+ var idCounter = 0;
+ _.uniqueId = function(prefix) {
+ var id = ++idCounter + '';
+ return prefix ? prefix + id : id;
+ };
+
+ // By default, Underscore uses ERB-style template delimiters, change the
+ // following template settings to use alternative delimiters.
+ _.templateSettings = {
+ evaluate : /<%([\s\S]+?)%>/g,
+ interpolate : /<%=([\s\S]+?)%>/g,
+ escape : /<%-([\s\S]+?)%>/g
+ };
+
+ // When customizing `templateSettings`, if you don't want to define an
+ // interpolation, evaluation or escaping regex, we need one that is
+ // guaranteed not to match.
+ var noMatch = /(.)^/;
+
+ // Certain characters need to be escaped so that they can be put into a
+ // string literal.
+ var escapes = {
+ "'": "'",
+ '\\': '\\',
+ '\r': 'r',
+ '\n': 'n',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ var escaper = /\\|'|\r|\n|\u2028|\u2029/g;
+
+ var escapeChar = function(match) {
+ return '\\' + escapes[match];
+ };
+
+ // JavaScript micro-templating, similar to John Resig's implementation.
+ // Underscore templating handles arbitrary delimiters, preserves whitespace,
+ // and correctly escapes quotes within interpolated code.
+ // NB: `oldSettings` only exists for backwards compatibility.
+ _.template = function(text, settings, oldSettings) {
+ if (!settings && oldSettings) settings = oldSettings;
+ settings = _.defaults({}, settings, _.templateSettings);
+
+ // Combine delimiters into one regular expression via alternation.
+ var matcher = RegExp([
+ (settings.escape || noMatch).source,
+ (settings.interpolate || noMatch).source,
+ (settings.evaluate || noMatch).source
+ ].join('|') + '|$', 'g');
+
+ // Compile the template source, escaping string literals appropriately.
+ var index = 0;
+ var source = "__p+='";
+ text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+ source += text.slice(index, offset).replace(escaper, escapeChar);
+ index = offset + match.length;
+
+ if (escape) {
+ source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+ } else if (interpolate) {
+ source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+ } else if (evaluate) {
+ source += "';\n" + evaluate + "\n__p+='";
+ }
+
+ // Adobe VMs need the match returned to produce the correct offest.
+ return match;
+ });
+ source += "';\n";
+
+ // If a variable is not specified, place data values in local scope.
+ if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+ source = "var __t,__p='',__j=Array.prototype.join," +
+ "print=function(){__p+=__j.call(arguments,'');};\n" +
+ source + 'return __p;\n';
+
+ try {
+ var render = new Function(settings.variable || 'obj', '_', source);
+ } catch (e) {
+ e.source = source;
+ throw e;
+ }
+
+ var template = function(data) {
+ return render.call(this, data, _);
+ };
+
+ // Provide the compiled source as a convenience for precompilation.
+ var argument = settings.variable || 'obj';
+ template.source = 'function(' + argument + '){\n' + source + '}';
+
+ return template;
+ };
+
+ // Add a "chain" function. Start chaining a wrapped Underscore object.
+ _.chain = function(obj) {
+ var instance = _(obj);
+ instance._chain = true;
+ return instance;
+ };
+
+ // OOP
+ // ---------------
+ // If Underscore is called as a function, it returns a wrapped object that
+ // can be used OO-style. This wrapper holds altered versions of all the
+ // underscore functions. Wrapped objects may be chained.
+
+ // Helper function to continue chaining intermediate results.
+ var result = function(instance, obj) {
+ return instance._chain ? _(obj).chain() : obj;
+ };
+
+ // Add your own custom functions to the Underscore object.
+ _.mixin = function(obj) {
+ _.each(_.functions(obj), function(name) {
+ var func = _[name] = obj[name];
+ _.prototype[name] = function() {
+ var args = [this._wrapped];
+ push.apply(args, arguments);
+ return result(this, func.apply(_, args));
+ };
+ });
+ };
+
+ // Add all of the Underscore functions to the wrapper object.
+ _.mixin(_);
+
+ // Add all mutator Array functions to the wrapper.
+ _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ var obj = this._wrapped;
+ method.apply(obj, arguments);
+ if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];
+ return result(this, obj);
+ };
+ });
+
+ // Add all accessor Array functions to the wrapper.
+ _.each(['concat', 'join', 'slice'], function(name) {
+ var method = ArrayProto[name];
+ _.prototype[name] = function() {
+ return result(this, method.apply(this._wrapped, arguments));
+ };
+ });
+
+ // Extracts the result from a wrapped and chained object.
+ _.prototype.value = function() {
+ return this._wrapped;
+ };
+
+ // Provide unwrapping proxy for some methods used in engine operations
+ // such as arithmetic and JSON stringification.
+ _.prototype.valueOf = _.prototype.toJSON = _.prototype.value;
+
+ _.prototype.toString = function() {
+ return '' + this._wrapped;
+ };
+
+ // AMD registration happens at the end for compatibility with AMD loaders
+ // that may not enforce next-turn semantics on modules. Even though general
+ // practice for AMD registration is to be anonymous, underscore registers
+ // as a named module because, like jQuery, it is a base library that is
+ // popular enough to be bundled in a third party lib, but not be part of
+ // an AMD load request. Those cases could generate an error when an
+ // anonymous define() is called outside of a loader request.
+ if (typeof define === 'function' && define.amd) {
+ define('underscore', [], function() {
+ return _;
+ });
+ }
+}.call(this));