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WordPress/wp-includes/js/backbone.min.js
Daryl Koopersmith 00d88af87a Update Backbone to 0.9.10. Update media to handle breaking changes. 
* When overriding `Backbone.sync()`, ensure the `sync` and `error` events fire consistently.

* `Model#make()` has been removed. Use `$` instead, and be sure to grab the DOM node where necessary (using `[0]`).

* `Collection#get()` now accepts `cid`s. `Collection#getByCid()` has been removed.

* When overriding the `State` constructor, bind `change` callbacks after the default `Model` constructor is called, because the `Model` constructor no longer passes the `silent` flag when calling `set()` for the default attributes.

* In 'change' events, `options.changes` was removed. It can now be accessed through `model.changed`. Check if any attributes have changed by calling `model.hasChanged()`. Also, don't mess with `model.changed`; it persists beyond the scope of a single event.

* `options.index` is no longer be set in the `add` event callback. Use `collection.indexOf(model)` can be used to retrieve the index of a model instead.

props gcorne. fixes #23262.


git-svn-id: http://core.svn.wordpress.org/trunk@23589 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2013-03-03 07:04:06 +00:00

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// Backbone.js 0.9.10
// (c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
(function(){var n=this,B=n.Backbone,h=[],C=h.push,u=h.slice,D=h.splice,g;g="undefined"!==typeof exports?exports:n.Backbone={};g.VERSION="0.9.10";var f=n._;!f&&"undefined"!==typeof require&&(f=require("underscore"));g.$=n.jQuery||n.Zepto||n.ender;g.noConflict=function(){n.Backbone=B;return this};g.emulateHTTP=!1;g.emulateJSON=!1;var v=/\s+/,q=function(a,b,c,d){if(!c)return!0;if("object"===typeof c)for(var e in c)a[b].apply(a,[e,c[e]].concat(d));else if(v.test(c)){c=c.split(v);e=0;for(var f=c.length;e<
f;e++)a[b].apply(a,[c[e]].concat(d))}else return!0},w=function(a,b){var c,d=-1,e=a.length;switch(b.length){case 0:for(;++d<e;)(c=a[d]).callback.call(c.ctx);break;case 1:for(;++d<e;)(c=a[d]).callback.call(c.ctx,b[0]);break;case 2:for(;++d<e;)(c=a[d]).callback.call(c.ctx,b[0],b[1]);break;case 3:for(;++d<e;)(c=a[d]).callback.call(c.ctx,b[0],b[1],b[2]);break;default:for(;++d<e;)(c=a[d]).callback.apply(c.ctx,b)}},h=g.Events={on:function(a,b,c){if(!q(this,"on",a,[b,c])||!b)return this;this._events||(this._events=
{});(this._events[a]||(this._events[a]=[])).push({callback:b,context:c,ctx:c||this});return this},once:function(a,b,c){if(!q(this,"once",a,[b,c])||!b)return this;var d=this,e=f.once(function(){d.off(a,e);b.apply(this,arguments)});e._callback=b;this.on(a,e,c);return this},off:function(a,b,c){var d,e,t,g,j,l,k,h;if(!this._events||!q(this,"off",a,[b,c]))return this;if(!a&&!b&&!c)return this._events={},this;g=a?[a]:f.keys(this._events);j=0;for(l=g.length;j<l;j++)if(a=g[j],d=this._events[a]){t=[];if(b||
c){k=0;for(h=d.length;k<h;k++)e=d[k],(b&&b!==e.callback&&b!==e.callback._callback||c&&c!==e.context)&&t.push(e)}this._events[a]=t}return this},trigger:function(a){if(!this._events)return this;var b=u.call(arguments,1);if(!q(this,"trigger",a,b))return this;var c=this._events[a],d=this._events.all;c&&w(c,b);d&&w(d,arguments);return this},listenTo:function(a,b,c){var d=this._listeners||(this._listeners={}),e=a._listenerId||(a._listenerId=f.uniqueId("l"));d[e]=a;a.on(b,"object"===typeof b?this:c,this);
return this},stopListening:function(a,b,c){var d=this._listeners;if(d){if(a)a.off(b,"object"===typeof b?this:c,this),!b&&!c&&delete d[a._listenerId];else{"object"===typeof b&&(c=this);for(var e in d)d[e].off(b,c,this);this._listeners={}}return this}}};h.bind=h.on;h.unbind=h.off;f.extend(g,h);var r=g.Model=function(a,b){var c,d=a||{};this.cid=f.uniqueId("c");this.attributes={};b&&b.collection&&(this.collection=b.collection);b&&b.parse&&(d=this.parse(d,b)||{});if(c=f.result(this,"defaults"))d=f.defaults({},
d,c);this.set(d,b);this.changed={};this.initialize.apply(this,arguments)};f.extend(r.prototype,h,{changed:null,idAttribute:"id",initialize:function(){},toJSON:function(){return f.clone(this.attributes)},sync:function(){return g.sync.apply(this,arguments)},get:function(a){return this.attributes[a]},escape:function(a){return f.escape(this.get(a))},has:function(a){return null!=this.get(a)},set:function(a,b,c){var d,e,g,p,j,l,k;if(null==a)return this;"object"===typeof a?(e=a,c=b):(e={})[a]=b;c||(c={});
if(!this._validate(e,c))return!1;g=c.unset;p=c.silent;a=[];j=this._changing;this._changing=!0;j||(this._previousAttributes=f.clone(this.attributes),this.changed={});k=this.attributes;l=this._previousAttributes;this.idAttribute in e&&(this.id=e[this.idAttribute]);for(d in e)b=e[d],f.isEqual(k[d],b)||a.push(d),f.isEqual(l[d],b)?delete this.changed[d]:this.changed[d]=b,g?delete k[d]:k[d]=b;if(!p){a.length&&(this._pending=!0);b=0;for(d=a.length;b<d;b++)this.trigger("change:"+a[b],this,k[a[b]],c)}if(j)return this;
if(!p)for(;this._pending;)this._pending=!1,this.trigger("change",this,c);this._changing=this._pending=!1;return this},unset:function(a,b){return this.set(a,void 0,f.extend({},b,{unset:!0}))},clear:function(a){var b={},c;for(c in this.attributes)b[c]=void 0;return this.set(b,f.extend({},a,{unset:!0}))},hasChanged:function(a){return null==a?!f.isEmpty(this.changed):f.has(this.changed,a)},changedAttributes:function(a){if(!a)return this.hasChanged()?f.clone(this.changed):!1;var b,c=!1,d=this._changing?
this._previousAttributes:this.attributes,e;for(e in a)if(!f.isEqual(d[e],b=a[e]))(c||(c={}))[e]=b;return c},previous:function(a){return null==a||!this._previousAttributes?null:this._previousAttributes[a]},previousAttributes:function(){return f.clone(this._previousAttributes)},fetch:function(a){a=a?f.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=a.success;a.success=function(a,d,e){if(!a.set(a.parse(d,e),e))return!1;b&&b(a,d,e)};return this.sync("read",this,a)},save:function(a,b,c){var d,e,g=this.attributes;
null==a||"object"===typeof a?(d=a,c=b):(d={})[a]=b;if(d&&(!c||!c.wait)&&!this.set(d,c))return!1;c=f.extend({validate:!0},c);if(!this._validate(d,c))return!1;d&&c.wait&&(this.attributes=f.extend({},g,d));void 0===c.parse&&(c.parse=!0);e=c.success;c.success=function(a,b,c){a.attributes=g;var k=a.parse(b,c);c.wait&&(k=f.extend(d||{},k));if(f.isObject(k)&&!a.set(k,c))return!1;e&&e(a,b,c)};a=this.isNew()?"create":c.patch?"patch":"update";"patch"===a&&(c.attrs=d);a=this.sync(a,this,c);d&&c.wait&&(this.attributes=
g);return a},destroy:function(a){a=a?f.clone(a):{};var b=this,c=a.success,d=function(){b.trigger("destroy",b,b.collection,a)};a.success=function(a,b,e){(e.wait||a.isNew())&&d();c&&c(a,b,e)};if(this.isNew())return a.success(this,null,a),!1;var e=this.sync("delete",this,a);a.wait||d();return e},url:function(){var a=f.result(this,"urlRoot")||f.result(this.collection,"url")||x();return this.isNew()?a:a+("/"===a.charAt(a.length-1)?"":"/")+encodeURIComponent(this.id)},parse:function(a){return a},clone:function(){return new this.constructor(this.attributes)},
isNew:function(){return null==this.id},isValid:function(a){return!this.validate||!this.validate(this.attributes,a)},_validate:function(a,b){if(!b.validate||!this.validate)return!0;a=f.extend({},this.attributes,a);var c=this.validationError=this.validate(a,b)||null;if(!c)return!0;this.trigger("invalid",this,c,b||{});return!1}});var s=g.Collection=function(a,b){b||(b={});b.model&&(this.model=b.model);void 0!==b.comparator&&(this.comparator=b.comparator);this.models=[];this._reset();this.initialize.apply(this,
arguments);a&&this.reset(a,f.extend({silent:!0},b))};f.extend(s.prototype,h,{model:r,initialize:function(){},toJSON:function(a){return this.map(function(b){return b.toJSON(a)})},sync:function(){return g.sync.apply(this,arguments)},add:function(a,b){a=f.isArray(a)?a.slice():[a];b||(b={});var c,d,e,g,p,j,l,k,h,m;l=[];k=b.at;h=this.comparator&&null==k&&!1!=b.sort;m=f.isString(this.comparator)?this.comparator:null;c=0;for(d=a.length;c<d;c++)(e=this._prepareModel(g=a[c],b))?(p=this.get(e))?b.merge&&(p.set(g===
e?e.attributes:g,b),h&&(!j&&p.hasChanged(m))&&(j=!0)):(l.push(e),e.on("all",this._onModelEvent,this),this._byId[e.cid]=e,null!=e.id&&(this._byId[e.id]=e)):this.trigger("invalid",this,g,b);l.length&&(h&&(j=!0),this.length+=l.length,null!=k?D.apply(this.models,[k,0].concat(l)):C.apply(this.models,l));j&&this.sort({silent:!0});if(b.silent)return this;c=0;for(d=l.length;c<d;c++)(e=l[c]).trigger("add",e,this,b);j&&this.trigger("sort",this,b);return this},remove:function(a,b){a=f.isArray(a)?a.slice():[a];
b||(b={});var c,d,e,g;c=0;for(d=a.length;c<d;c++)if(g=this.get(a[c]))delete this._byId[g.id],delete this._byId[g.cid],e=this.indexOf(g),this.models.splice(e,1),this.length--,b.silent||(b.index=e,g.trigger("remove",g,this,b)),this._removeReference(g);return this},push:function(a,b){a=this._prepareModel(a,b);this.add(a,f.extend({at:this.length},b));return a},pop:function(a){var b=this.at(this.length-1);this.remove(b,a);return b},unshift:function(a,b){a=this._prepareModel(a,b);this.add(a,f.extend({at:0},
b));return a},shift:function(a){var b=this.at(0);this.remove(b,a);return b},slice:function(a,b){return this.models.slice(a,b)},get:function(a){if(null!=a)return this._idAttr||(this._idAttr=this.model.prototype.idAttribute),this._byId[a.id||a.cid||a[this._idAttr]||a]},at:function(a){return this.models[a]},where:function(a){return f.isEmpty(a)?[]:this.filter(function(b){for(var c in a)if(a[c]!==b.get(c))return!1;return!0})},sort:function(a){if(!this.comparator)throw Error("Cannot sort a set without a comparator");
a||(a={});f.isString(this.comparator)||1===this.comparator.length?this.models=this.sortBy(this.comparator,this):this.models.sort(f.bind(this.comparator,this));a.silent||this.trigger("sort",this,a);return this},pluck:function(a){return f.invoke(this.models,"get",a)},update:function(a,b){b=f.extend({add:!0,merge:!0,remove:!0},b);b.parse&&(a=this.parse(a,b));var c,d,e,g,h=[],j=[],l={};f.isArray(a)||(a=a?[a]:[]);if(b.add&&!b.remove)return this.add(a,b);d=0;for(e=a.length;d<e;d++)c=a[d],g=this.get(c),
b.remove&&g&&(l[g.cid]=!0),(b.add&&!g||b.merge&&g)&&h.push(c);if(b.remove){d=0;for(e=this.models.length;d<e;d++)c=this.models[d],l[c.cid]||j.push(c)}j.length&&this.remove(j,b);h.length&&this.add(h,b);return this},reset:function(a,b){b||(b={});b.parse&&(a=this.parse(a,b));for(var c=0,d=this.models.length;c<d;c++)this._removeReference(this.models[c]);b.previousModels=this.models.slice();this._reset();a&&this.add(a,f.extend({silent:!0},b));b.silent||this.trigger("reset",this,b);return this},fetch:function(a){a=
a?f.clone(a):{};void 0===a.parse&&(a.parse=!0);var b=a.success;a.success=function(a,d,e){a[e.update?"update":"reset"](d,e);b&&b(a,d,e)};return this.sync("read",this,a)},create:function(a,b){b=b?f.clone(b):{};if(!(a=this._prepareModel(a,b)))return!1;b.wait||this.add(a,b);var c=this,d=b.success;b.success=function(a,b,f){f.wait&&c.add(a,f);d&&d(a,b,f)};a.save(null,b);return a},parse:function(a){return a},clone:function(){return new this.constructor(this.models)},_reset:function(){this.length=0;this.models.length=
0;this._byId={}},_prepareModel:function(a,b){if(a instanceof r)return a.collection||(a.collection=this),a;b||(b={});b.collection=this;var c=new this.model(a,b);return!c._validate(a,b)?!1:c},_removeReference:function(a){this===a.collection&&delete a.collection;a.off("all",this._onModelEvent,this)},_onModelEvent:function(a,b,c,d){("add"===a||"remove"===a)&&c!==this||("destroy"===a&&this.remove(b,d),b&&a==="change:"+b.idAttribute&&(delete this._byId[b.previous(b.idAttribute)],null!=b.id&&(this._byId[b.id]=
b)),this.trigger.apply(this,arguments))},sortedIndex:function(a,b,c){b||(b=this.comparator);var d=f.isFunction(b)?b:function(a){return a.get(b)};return f.sortedIndex(this.models,a,d,c)}});f.each("forEach each map collect reduce foldl inject reduceRight foldr find detect filter select reject every all some any include contains invoke max min toArray size first head take initial rest tail drop last without indexOf shuffle lastIndexOf isEmpty chain".split(" "),function(a){s.prototype[a]=function(){var b=
u.call(arguments);b.unshift(this.models);return f[a].apply(f,b)}});f.each(["groupBy","countBy","sortBy"],function(a){s.prototype[a]=function(b,c){var d=f.isFunction(b)?b:function(a){return a.get(b)};return f[a](this.models,d,c)}});var y=g.Router=function(a){a||(a={});a.routes&&(this.routes=a.routes);this._bindRoutes();this.initialize.apply(this,arguments)},E=/\((.*?)\)/g,F=/(\(\?)?:\w+/g,G=/\*\w+/g,H=/[\-{}\[\]+?.,\\\^$|#\s]/g;f.extend(y.prototype,h,{initialize:function(){},route:function(a,b,c){f.isRegExp(a)||
(a=this._routeToRegExp(a));c||(c=this[b]);g.history.route(a,f.bind(function(d){d=this._extractParameters(a,d);c&&c.apply(this,d);this.trigger.apply(this,["route:"+b].concat(d));this.trigger("route",b,d);g.history.trigger("route",this,b,d)},this));return this},navigate:function(a,b){g.history.navigate(a,b);return this},_bindRoutes:function(){if(this.routes)for(var a,b=f.keys(this.routes);null!=(a=b.pop());)this.route(a,this.routes[a])},_routeToRegExp:function(a){a=a.replace(H,"\\$&").replace(E,"(?:$1)?").replace(F,
function(a,c){return c?a:"([^/]+)"}).replace(G,"(.*?)");return RegExp("^"+a+"$")},_extractParameters:function(a,b){return a.exec(b).slice(1)}});var m=g.History=function(){this.handlers=[];f.bindAll(this,"checkUrl");"undefined"!==typeof window&&(this.location=window.location,this.history=window.history)},z=/^[#\/]|\s+$/g,I=/^\/+|\/+$/g,J=/msie [\w.]+/,K=/\/$/;m.started=!1;f.extend(m.prototype,h,{interval:50,getHash:function(a){return(a=(a||this).location.href.match(/#(.*)$/))?a[1]:""},getFragment:function(a,
b){if(null==a)if(this._hasPushState||!this._wantsHashChange||b){a=this.location.pathname;var c=this.root.replace(K,"");a.indexOf(c)||(a=a.substr(c.length))}else a=this.getHash();return a.replace(z,"")},start:function(a){if(m.started)throw Error("Backbone.history has already been started");m.started=!0;this.options=f.extend({},{root:"/"},this.options,a);this.root=this.options.root;this._wantsHashChange=!1!==this.options.hashChange;this._wantsPushState=!!this.options.pushState;this._hasPushState=!(!this.options.pushState||
!this.history||!this.history.pushState);a=this.getFragment();var b=document.documentMode,b=J.exec(navigator.userAgent.toLowerCase())&&(!b||7>=b);this.root=("/"+this.root+"/").replace(I,"/");b&&this._wantsHashChange&&(this.iframe=g.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo("body")[0].contentWindow,this.navigate(a));if(this._hasPushState)g.$(window).on("popstate",this.checkUrl);else if(this._wantsHashChange&&"onhashchange"in window&&!b)g.$(window).on("hashchange",this.checkUrl);
else this._wantsHashChange&&(this._checkUrlInterval=setInterval(this.checkUrl,this.interval));this.fragment=a;a=this.location;b=a.pathname.replace(/[^\/]$/,"$&/")===this.root;if(this._wantsHashChange&&this._wantsPushState&&!this._hasPushState&&!b)return this.fragment=this.getFragment(null,!0),this.location.replace(this.root+this.location.search+"#"+this.fragment),!0;this._wantsPushState&&(this._hasPushState&&b&&a.hash)&&(this.fragment=this.getHash().replace(z,""),this.history.replaceState({},document.title,
this.root+this.fragment+a.search));if(!this.options.silent)return this.loadUrl()},stop:function(){g.$(window).off("popstate",this.checkUrl).off("hashchange",this.checkUrl);clearInterval(this._checkUrlInterval);m.started=!1},route:function(a,b){this.handlers.unshift({route:a,callback:b})},checkUrl:function(){var a=this.getFragment();a===this.fragment&&this.iframe&&(a=this.getFragment(this.getHash(this.iframe)));if(a===this.fragment)return!1;this.iframe&&this.navigate(a);this.loadUrl()||this.loadUrl(this.getHash())},
loadUrl:function(a){var b=this.fragment=this.getFragment(a);return f.any(this.handlers,function(a){if(a.route.test(b))return a.callback(b),!0})},navigate:function(a,b){if(!m.started)return!1;if(!b||!0===b)b={trigger:b};a=this.getFragment(a||"");if(this.fragment!==a){this.fragment=a;var c=this.root+a;if(this._hasPushState)this.history[b.replace?"replaceState":"pushState"]({},document.title,c);else if(this._wantsHashChange)this._updateHash(this.location,a,b.replace),this.iframe&&a!==this.getFragment(this.getHash(this.iframe))&&
(b.replace||this.iframe.document.open().close(),this._updateHash(this.iframe.location,a,b.replace));else return this.location.assign(c);b.trigger&&this.loadUrl(a)}},_updateHash:function(a,b,c){c?(c=a.href.replace(/(javascript:|#).*$/,""),a.replace(c+"#"+b)):a.hash="#"+b}});g.history=new m;var A=g.View=function(a){this.cid=f.uniqueId("view");this._configure(a||{});this._ensureElement();this.initialize.apply(this,arguments);this.delegateEvents()},L=/^(\S+)\s*(.*)$/,M="model collection el id attributes className tagName events".split(" ");
f.extend(A.prototype,h,{tagName:"div",$:function(a){return this.$el.find(a)},initialize:function(){},render:function(){return this},remove:function(){this.$el.remove();this.stopListening();return this},setElement:function(a,b){this.$el&&this.undelegateEvents();this.$el=a instanceof g.$?a:g.$(a);this.el=this.$el[0];!1!==b&&this.delegateEvents();return this},delegateEvents:function(a){if(a||(a=f.result(this,"events"))){this.undelegateEvents();for(var b in a){var c=a[b];f.isFunction(c)||(c=this[a[b]]);
if(!c)throw Error('Method "'+a[b]+'" does not exist');var d=b.match(L),e=d[1],d=d[2],c=f.bind(c,this),e=e+(".delegateEvents"+this.cid);if(""===d)this.$el.on(e,c);else this.$el.on(e,d,c)}}},undelegateEvents:function(){this.$el.off(".delegateEvents"+this.cid)},_configure:function(a){this.options&&(a=f.extend({},f.result(this,"options"),a));f.extend(this,f.pick(a,M));this.options=a},_ensureElement:function(){if(this.el)this.setElement(f.result(this,"el"),!1);else{var a=f.extend({},f.result(this,"attributes"));
this.id&&(a.id=f.result(this,"id"));this.className&&(a["class"]=f.result(this,"className"));a=g.$("<"+f.result(this,"tagName")+">").attr(a);this.setElement(a,!1)}}});var N={create:"POST",update:"PUT",patch:"PATCH","delete":"DELETE",read:"GET"};g.sync=function(a,b,c){var d=N[a];f.defaults(c||(c={}),{emulateHTTP:g.emulateHTTP,emulateJSON:g.emulateJSON});var e={type:d,dataType:"json"};c.url||(e.url=f.result(b,"url")||x());if(null==c.data&&b&&("create"===a||"update"===a||"patch"===a))e.contentType="application/json",
e.data=JSON.stringify(c.attrs||b.toJSON(c));c.emulateJSON&&(e.contentType="application/x-www-form-urlencoded",e.data=e.data?{model:e.data}:{});if(c.emulateHTTP&&("PUT"===d||"DELETE"===d||"PATCH"===d)){e.type="POST";c.emulateJSON&&(e.data._method=d);var h=c.beforeSend;c.beforeSend=function(a){a.setRequestHeader("X-HTTP-Method-Override",d);if(h)return h.apply(this,arguments)}}"GET"!==e.type&&!c.emulateJSON&&(e.processData=!1);var m=c.success;c.success=function(a){m&&m(b,a,c);b.trigger("sync",b,a,c)};
var j=c.error;c.error=function(a){j&&j(b,a,c);b.trigger("error",b,a,c)};a=c.xhr=g.ajax(f.extend(e,c));b.trigger("request",b,a,c);return a};g.ajax=function(){return g.$.ajax.apply(g.$,arguments)};r.extend=s.extend=y.extend=A.extend=m.extend=function(a,b){var c=this,d;d=a&&f.has(a,"constructor")?a.constructor:function(){return c.apply(this,arguments)};f.extend(d,c,b);var e=function(){this.constructor=d};e.prototype=c.prototype;d.prototype=new e;a&&f.extend(d.prototype,a);d.__super__=c.prototype;return d};
var x=function(){throw Error('A "url" property or function must be specified');}}).call(this);
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