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+// Backbone.js 0.9.9
+
+// (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(){
+
+ // Initial Setup
+ // -------------
+
+ // Save a reference to the global object (`window` in the browser, `exports`
+ // on the server).
+ var root = this;
+
+ // 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 array methods.
+ var array = [];
+ var push = array.push;
+ var slice = array.slice;
+ var splice = array.splice;
+
+ // The top-level namespace. All public Backbone classes and modules will
+ // be attached to this. Exported for both CommonJS and the browser.
+ var Backbone;
+ if (typeof exports !== 'undefined') {
+ Backbone = exports;
+ } else {
+ Backbone = root.Backbone = {};
+ }
+
+ // Current version of the library. Keep in sync with `package.json`.
+ Backbone.VERSION = '0.9.9';
+
+ // Require Underscore, if we're on the server, and it's not already present.
+ var _ = root._;
+ if (!_ && (typeof require !== 'undefined')) _ = require('underscore');
+
+ // For Backbone's purposes, jQuery, Zepto, or Ender owns the `$` variable.
+ Backbone.$ = root.jQuery || root.Zepto || root.ender;
+
+ // 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 `"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 ... 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;
+
+ // Backbone.Events
+ // ---------------
+
+ // Regular expression used to split event strings.
+ var eventSplitter = /\s+/;
+
+ // Implement fancy features of the Events API such as multiple event
+ // names `"change blur"` and jQuery-style event maps `{change: action}`
+ // in terms of the existing API.
+ var eventsApi = function(obj, action, name, rest) {
+ if (!name) return true;
+ if (typeof name === 'object') {
+ for (var key in name) {
+ obj[action].apply(obj, [key, name[key]].concat(rest));
+ }
+ } else if (eventSplitter.test(name)) {
+ var names = name.split(eventSplitter);
+ for (var i = 0, l = names.length; i < l; i++) {
+ obj[action].apply(obj, [names[i]].concat(rest));
+ }
+ } else {
+ return true;
+ }
+ };
+
+ // Optimized internal dispatch function for triggering events. Tries to
+ // keep the usual cases speedy (most Backbone events have 3 arguments).
+ var triggerEvents = function(obj, events, args) {
+ var ev, i = -1, l = events.length;
+ 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, args[0]);
+ return;
+ case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1]);
+ return;
+ case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1], args[2]);
+ return;
+ default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
+ }
+ };
+
+ // A module that can be mixed in to *any object* in order to provide it with
+ // custom events. You may bind with `on` or remove with `off` callback
+ // functions to an event; `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 = {
+
+ // Bind one or more space separated events, or an events map,
+ // to a `callback` function. Passing `"all"` will bind the callback to
+ // all events fired.
+ on: function(name, callback, context) {
+ if (!(eventsApi(this, 'on', name, [callback, context]) && callback)) return this;
+ this._events || (this._events = {});
+ var list = this._events[name] || (this._events[name] = []);
+ list.push({callback: callback, context: context, ctx: context || this});
+ return this;
+ },
+
+ // Bind events to only be triggered a single time. After the first time
+ // the callback is invoked, it will be removed.
+ once: function(name, callback, context) {
+ if (!(eventsApi(this, 'once', name, [callback, context]) && callback)) return this;
+ var self = this;
+ var once = _.once(function() {
+ self.off(name, once);
+ callback.apply(this, arguments);
+ });
+ once._callback = callback;
+ this.on(name, once, context);
+ return this;
+ },
+
+ // 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 `events` is null, removes all bound
+ // callbacks for all events.
+ off: function(name, callback, context) {
+ var list, ev, events, names, i, l, j, k;
+ if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
+ if (!name && !callback && !context) {
+ this._events = {};
+ return this;
+ }
+
+ names = name ? [name] : _.keys(this._events);
+ for (i = 0, l = names.length; i < l; i++) {
+ name = names[i];
+ if (list = this._events[name]) {
+ events = [];
+ if (callback || context) {
+ for (j = 0, k = list.length; j < k; j++) {
+ ev = list[j];
+ if ((callback && callback !== (ev.callback._callback || ev.callback)) ||
+ (context && context !== ev.context)) {
+ events.push(ev);
+ }
+ }
+ }
+ this._events[name] = events;
+ }
+ }
+
+ return this;
+ },
+
+ // 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).
+ trigger: function(name) {
+ if (!this._events) return this;
+ var args = slice.call(arguments, 1);
+ if (!eventsApi(this, 'trigger', name, args)) return this;
+ var events = this._events[name];
+ var allEvents = this._events.all;
+ if (events) triggerEvents(this, events, args);
+ if (allEvents) triggerEvents(this, allEvents, arguments);
+ return this;
+ },
+
+ // An inversion-of-control version of `on`. Tell *this* object to listen to
+ // an event in another object ... keeping track of what it's listening to.
+ listenTo: function(object, events, callback) {
+ var listeners = this._listeners || (this._listeners = {});
+ var id = object._listenerId || (object._listenerId = _.uniqueId('l'));
+ listeners[id] = object;
+ object.on(events, callback || this, this);
+ return this;
+ },
+
+ // Tell this object to stop listening to either specific events ... or
+ // to every object it's currently listening to.
+ stopListening: function(object, events, callback) {
+ var listeners = this._listeners;
+ if (!listeners) return;
+ if (object) {
+ object.off(events, callback, this);
+ if (!events && !callback) delete listeners[object._listenerId];
+ } else {
+ for (var id in listeners) {
+ listeners[id].off(null, null, this);
+ }
+ this._listeners = {};
+ }
+ return this;
+ }
+ };
+
+ // 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
+ // --------------
+
+ // Create a new model, with defined attributes. A client id (`cid`)
+ // is automatically generated and assigned for you.
+ var Model = Backbone.Model = function(attributes, options) {
+ var defaults;
+ var attrs = attributes || {};
+ this.cid = _.uniqueId('c');
+ this.changed = {};
+ this.attributes = {};
+ this._changes = [];
+ if (options && options.collection) this.collection = options.collection;
+ if (options && options.parse) attrs = this.parse(attrs);
+ if (defaults = _.result(this, 'defaults')) _.defaults(attrs, defaults);
+ this.set(attrs, {silent: true});
+ this._currentAttributes = _.clone(this.attributes);
+ this._previousAttributes = _.clone(this.attributes);
+ 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 default name for the JSON `id` attribute is `"id"`. MongoDB and
+ // CouchDB users may want to set this to `"_id"`.
+ idAttribute: 'id',
+
+ // 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.
+ 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;
+ },
+
+ // Set a hash of model attributes on the object, firing `"change"` unless
+ // you choose to silence it.
+ set: function(key, val, options) {
+ var attr, attrs;
+ if (key == null) return this;
+
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ if (_.isObject(key)) {
+ attrs = key;
+ options = val;
+ } else {
+ (attrs = {})[key] = val;
+ }
+
+ // Extract attributes and options.
+ var silent = options && options.silent;
+ var unset = options && options.unset;
+
+ // Run validation.
+ if (!this._validate(attrs, options)) return false;
+
+ // Check for changes of `id`.
+ if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
+
+ var now = this.attributes;
+
+ // For each `set` attribute...
+ for (attr in attrs) {
+ val = attrs[attr];
+
+ // Update or delete the current value, and track the change.
+ unset ? delete now[attr] : now[attr] = val;
+ this._changes.push(attr, val);
+ }
+
+ // Signal that the model's state has potentially changed, and we need
+ // to recompute the actual changes.
+ this._hasComputed = false;
+
+ // Fire the `"change"` events.
+ if (!silent) this.change(options);
+ return this;
+ },
+
+ // Remove an attribute from the model, firing `"change"` unless you choose
+ // to silence it. `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"` unless you choose
+ // to silence it.
+ clear: function(options) {
+ var attrs = {};
+ for (var key in this.attributes) attrs[key] = void 0;
+ return this.set(attrs, _.extend({}, options, {unset: true}));
+ },
+
+ // Fetch the model from the server. If the server's representation of the
+ // model differs from its current attributes, they will be overriden,
+ // triggering a `"change"` event.
+ fetch: function(options) {
+ options = options ? _.clone(options) : {};
+ if (options.parse === void 0) options.parse = true;
+ var model = this;
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ if (!model.set(model.parse(resp), options)) return false;
+ if (success) success(model, resp, 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) {
+ var attrs, current, done;
+
+ // Handle both `"key", value` and `{key: value}` -style arguments.
+ if (key == null || _.isObject(key)) {
+ attrs = key;
+ options = val;
+ } else if (key != null) {
+ (attrs = {})[key] = val;
+ }
+ options = options ? _.clone(options) : {};
+
+ // If we're "wait"-ing to set changed attributes, validate early.
+ if (options.wait) {
+ if (attrs && !this._validate(attrs, options)) return false;
+ current = _.clone(this.attributes);
+ }
+
+ // Regular saves `set` attributes before persisting to the server.
+ var silentOptions = _.extend({}, options, {silent: true});
+ if (attrs && !this.set(attrs, options.wait ? silentOptions : options)) {
+ return false;
+ }
+
+ // Do not persist invalid models.
+ if (!attrs && !this._validate(null, 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;
+ options.success = function(resp, status, xhr) {
+ done = true;
+ var serverAttrs = model.parse(resp);
+ if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
+ if (!model.set(serverAttrs, options)) return false;
+ if (success) success(model, resp, options);
+ };
+
+ // Finish configuring and sending the Ajax request.
+ var method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
+ if (method == 'patch') options.attrs = attrs;
+ var xhr = this.sync(method, this, options);
+
+ // When using `wait`, reset attributes to original values unless
+ // `success` has been called already.
+ if (!done && options.wait) {
+ this.clear(silentOptions);
+ this.set(current, silentOptions);
+ }
+
+ 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 destroy = function() {
+ model.trigger('destroy', model, model.collection, options);
+ };
+
+ options.success = function(resp) {
+ if (options.wait || model.isNew()) destroy();
+ if (success) success(model, resp, options);
+ };
+
+ if (this.isNew()) {
+ options.success();
+ return false;
+ }
+
+ var xhr = this.sync('delete', this, options);
+ if (!options.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;
+ return base + (base.charAt(base.length - 1) === '/' ? '' : '/') + encodeURIComponent(this.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) {
+ 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.id == null;
+ },
+
+ // Call this method to manually fire a `"change"` event for this model and
+ // a `"change:attribute"` event for each changed attribute.
+ // Calling this will cause all objects observing the model to update.
+ change: function(options) {
+ var changing = this._changing;
+ this._changing = true;
+
+ // Generate the changes to be triggered on the model.
+ var triggers = this._computeChanges(true);
+
+ this._pending = !!triggers.length;
+
+ for (var i = triggers.length - 2; i >= 0; i -= 2) {
+ this.trigger('change:' + triggers[i], this, triggers[i + 1], options);
+ }
+
+ if (changing) return this;
+
+ // Trigger a `change` while there have been changes.
+ while (this._pending) {
+ this._pending = false;
+ this.trigger('change', this, options);
+ this._previousAttributes = _.clone(this.attributes);
+ }
+
+ this._changing = false;
+ return this;
+ },
+
+ // 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 (!this._hasComputed) this._computeChanges();
+ 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 val, changed = false, old = this._previousAttributes;
+ for (var attr in diff) {
+ if (_.isEqual(old[attr], (val = diff[attr]))) continue;
+ (changed || (changed = {}))[attr] = val;
+ }
+ return changed;
+ },
+
+ // Looking at the built up list of `set` attribute changes, compute how
+ // many of the attributes have actually changed. If `loud`, return a
+ // boiled-down list of only the real changes.
+ _computeChanges: function(loud) {
+ this.changed = {};
+ var already = {};
+ var triggers = [];
+ var current = this._currentAttributes;
+ var changes = this._changes;
+
+ // Loop through the current queue of potential model changes.
+ for (var i = changes.length - 2; i >= 0; i -= 2) {
+ var key = changes[i], val = changes[i + 1];
+ if (already[key]) continue;
+ already[key] = true;
+
+ // Check if the attribute has been modified since the last change,
+ // and update `this.changed` accordingly. If we're inside of a `change`
+ // call, also add a trigger to the list.
+ if (current[key] !== val) {
+ this.changed[key] = val;
+ if (!loud) continue;
+ triggers.push(key, val);
+ current[key] = val;
+ }
+ }
+ if (loud) this._changes = [];
+
+ // Signals `this.changed` is current to prevent duplicate calls from `this.hasChanged`.
+ this._hasComputed = true;
+ return triggers;
+ },
+
+ // 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);
+ },
+
+ // Run validation against the next complete set of model attributes,
+ // returning `true` if all is well. If a specific `error` callback has
+ // been passed, call that instead of firing the general `"error"` event.
+ _validate: function(attrs, options) {
+ if (!this.validate) return true;
+ attrs = _.extend({}, this.attributes, attrs);
+ var error = this.validate(attrs, options);
+ if (!error) return true;
+ if (options && options.error) options.error(this, error, options);
+ this.trigger('error', this, error, options);
+ return false;
+ }
+
+ });
+
+ // Backbone.Collection
+ // -------------------
+
+ // Provides a standard collection class for our sets of models, ordered
+ // or unordered. 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));
+ };
+
+ // 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. Pass **silent** to avoid
+ // firing the `add` event for every new model.
+ add: function(models, options) {
+ var i, args, length, model, existing, needsSort;
+ var at = options && options.at;
+ var sort = ((options && options.sort) == null ? true : options.sort);
+ models = _.isArray(models) ? models.slice() : [models];
+
+ // Turn bare objects into model references, and prevent invalid models
+ // from being added.
+ for (i = models.length - 1; i >= 0; i--) {
+ if(!(model = this._prepareModel(models[i], options))) {
+ this.trigger("error", this, models[i], options);
+ models.splice(i, 1);
+ continue;
+ }
+ models[i] = model;
+
+ existing = model.id != null && this._byId[model.id];
+ // If a duplicate is found, prevent it from being added and
+ // optionally merge it into the existing model.
+ if (existing || this._byCid[model.cid]) {
+ if (options && options.merge && existing) {
+ existing.set(model.attributes, options);
+ needsSort = sort;
+ }
+ models.splice(i, 1);
+ continue;
+ }
+
+ // Listen to added models' events, and index models for lookup by
+ // `id` and by `cid`.
+ model.on('all', this._onModelEvent, this);
+ this._byCid[model.cid] = model;
+ if (model.id != null) this._byId[model.id] = model;
+ }
+
+ // See if sorting is needed, update `length` and splice in new models.
+ if (models.length) needsSort = sort;
+ this.length += models.length;
+ args = [at != null ? at : this.models.length, 0];
+ push.apply(args, models);
+ splice.apply(this.models, args);
+
+ // Sort the collection if appropriate.
+ if (needsSort && this.comparator && at == null) this.sort({silent: true});
+
+ if (options && options.silent) return this;
+
+ // Trigger `add` events.
+ while (model = models.shift()) {
+ model.trigger('add', model, this, options);
+ }
+
+ return this;
+ },
+
+ // Remove a model, or a list of models from the set. Pass silent to avoid
+ // firing the `remove` event for every model removed.
+ remove: function(models, options) {
+ var i, l, index, model;
+ options || (options = {});
+ models = _.isArray(models) ? models.slice() : [models];
+ for (i = 0, l = models.length; i < l; i++) {
+ model = this.get(models[i]);
+ if (!model) continue;
+ delete this._byId[model.id];
+ delete this._byCid[model.cid];
+ index = this.indexOf(model);
+ this.models.splice(index, 1);
+ this.length--;
+ if (!options.silent) {
+ options.index = index;
+ model.trigger('remove', model, this, options);
+ }
+ this._removeReference(model);
+ }
+ return this;
+ },
+
+ // Add a model to the end of the collection.
+ push: function(model, options) {
+ model = this._prepareModel(model, options);
+ this.add(model, _.extend({at: this.length}, options));
+ return model;
+ },
+
+ // Remove a model from the end of the collection.
+ pop: function(options) {
+ var model = this.at(this.length - 1);
+ this.remove(model, options);
+ return model;
+ },
+
+ // Add a model to the beginning of the collection.
+ unshift: function(model, options) {
+ model = this._prepareModel(model, options);
+ this.add(model, _.extend({at: 0}, options));
+ return model;
+ },
+
+ // Remove a model from the beginning of the collection.
+ shift: function(options) {
+ var model = this.at(0);
+ this.remove(model, options);
+ return model;
+ },
+
+ // Slice out a sub-array of models from the collection.
+ slice: function(begin, end) {
+ return this.models.slice(begin, end);
+ },
+
+ // Get a model from the set by id.
+ get: function(obj) {
+ if (obj == null) return void 0;
+ return this._byId[obj.id != null ? obj.id : obj] || this._byCid[obj.cid || obj];
+ },
+
+ // Get the model at the given index.
+ at: function(index) {
+ return this.models[index];
+ },
+
+ // Return models with matching attributes. Useful for simple cases of `filter`.
+ where: function(attrs) {
+ if (_.isEmpty(attrs)) return [];
+ return this.filter(function(model) {
+ for (var key in attrs) {
+ if (attrs[key] !== model.get(key)) return false;
+ }
+ return 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) {
+ if (!this.comparator) {
+ throw new Error('Cannot sort a set without a comparator');
+ }
+
+ if (_.isString(this.comparator) || this.comparator.length === 1) {
+ this.models = this.sortBy(this.comparator, this);
+ } else {
+ this.models.sort(_.bind(this.comparator, this));
+ }
+
+ if (!options || !options.silent) this.trigger('sort', this, options);
+ return this;
+ },
+
+ // Pluck an attribute from each model in the collection.
+ pluck: function(attr) {
+ return _.invoke(this.models, 'get', attr);
+ },
+
+ // Smartly update a collection with a change set of models, adding,
+ // removing, and merging as necessary.
+ update: function(models, options) {
+ var model, i, l, existing;
+ var add = [], remove = [], modelMap = {};
+ var idAttr = this.model.prototype.idAttribute;
+ options = _.extend({add: true, merge: true, remove: true}, options);
+ if (options.parse) models = this.parse(models);
+
+ // Allow a single model (or no argument) to be passed.
+ if (!_.isArray(models)) models = models ? [models] : [];
+
+ // Proxy to `add` for this case, no need to iterate...
+ if (options.add && !options.remove) return this.add(models, options);
+
+ // Determine which models to add and merge, and which to remove.
+ for (i = 0, l = models.length; i < l; i++) {
+ model = models[i];
+ existing = this.get(model.id || model.cid || model[idAttr]);
+ if (options.remove && existing) modelMap[existing.cid] = true;
+ if ((options.add && !existing) || (options.merge && existing)) {
+ add.push(model);
+ }
+ }
+ if (options.remove) {
+ for (i = 0, l = this.models.length; i < l; i++) {
+ model = this.models[i];
+ if (!modelMap[model.cid]) remove.push(model);
+ }
+ }
+
+ // Remove models (if applicable) before we add and merge the rest.
+ if (remove.length) this.remove(remove, options);
+ if (add.length) this.add(add, options);
+ return this;
+ },
+
+ // 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 `add` or `remove` events. Fires `reset` when finished.
+ reset: function(models, options) {
+ options || (options = {});
+ if (options.parse) models = this.parse(models);
+ for (var i = 0, l = this.models.length; i < l; i++) {
+ this._removeReference(this.models[i]);
+ }
+ options.previousModels = this.models;
+ this._reset();
+ if (models) this.add(models, _.extend({silent: true}, options));
+ if (!options.silent) this.trigger('reset', this, options);
+ return this;
+ },
+
+ // Fetch the default set of models for this collection, resetting the
+ // collection when they arrive. If `add: true` is passed, appends the
+ // models to the collection instead of resetting.
+ fetch: function(options) {
+ options = options ? _.clone(options) : {};
+ if (options.parse === void 0) options.parse = true;
+ var collection = this;
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ var method = options.update ? 'update' : 'reset';
+ collection[method](resp, options);
+ if (success) success(collection, resp, 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) {
+ var collection = this;
+ options = options ? _.clone(options) : {};
+ model = this._prepareModel(model, options);
+ if (!model) return false;
+ if (!options.wait) collection.add(model, options);
+ var success = options.success;
+ options.success = function(model, resp, options) {
+ if (options.wait) collection.add(model, options);
+ if (success) success(model, resp, options);
+ };
+ 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) {
+ return resp;
+ },
+
+ // Create a new collection with an identical list of models as this one.
+ clone: function() {
+ return new this.constructor(this.models);
+ },
+
+ // Proxy to _'s chain. Can't be proxied the same way the rest of the
+ // underscore methods are proxied because it relies on the underscore
+ // constructor.
+ chain: function() {
+ return _(this.models).chain();
+ },
+
+ // Reset all internal state. Called when the collection is reset.
+ _reset: function() {
+ this.length = 0;
+ this.models = [];
+ this._byId = {};
+ this._byCid = {};
+ },
+
+ // Prepare a model or hash of attributes to be added to this collection.
+ _prepareModel: function(attrs, options) {
+ if (attrs instanceof Model) {
+ if (!attrs.collection) attrs.collection = this;
+ return attrs;
+ }
+ options || (options = {});
+ options.collection = this;
+ var model = new this.model(attrs, options);
+ if (!model._validate(attrs, options)) return false;
+ return model;
+ },
+
+ // Internal method to remove a model's ties to a collection.
+ _removeReference: function(model) {
+ 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 ((event === 'add' || event === 'remove') && collection !== this) return;
+ if (event === 'destroy') this.remove(model, options);
+ if (model && event === 'change:' + model.idAttribute) {
+ delete this._byId[model.previous(model.idAttribute)];
+ if (model.id != null) this._byId[model.id] = model;
+ }
+ this.trigger.apply(this, arguments);
+ }
+
+ });
+
+ // Underscore methods that we want to implement on the Collection.
+ var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
+ 'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
+ 'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
+ 'max', 'min', 'sortedIndex', 'toArray', 'size', 'first', 'head', 'take',
+ 'initial', 'rest', 'tail', 'last', 'without', 'indexOf', 'shuffle',
+ 'lastIndexOf', 'isEmpty'];
+
+ // Mix in each Underscore method as a proxy to `Collection#models`.
+ _.each(methods, function(method) {
+ Collection.prototype[method] = function() {
+ var args = slice.call(arguments);
+ args.unshift(this.models);
+ return _[method].apply(_, args);
+ };
+ });
+
+ // Underscore methods that take a property name as an argument.
+ var attributeMethods = ['groupBy', 'countBy', 'sortBy'];
+
+ // Use attributes instead of properties.
+ _.each(attributeMethods, function(method) {
+ Collection.prototype[method] = function(value, context) {
+ var iterator = _.isFunction(value) ? value : function(model) {
+ return model.get(value);
+ };
+ return _[method](this.models, iterator, context);
+ };
+ });
+
+ // 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 = /[\-{}\[\]+?.,\\\^$|#\s]/g;
+
+ // Set up all inheritable **Backbone.Router** properties and methods.
+ _.extend(Router.prototype, Events, {
+
+ // Initialize is an empty function by default. Override it with your own
+ // initialization logic.
+ initialize: function(){},
+
+ // Manually bind a single named route to a callback. For example:
+ //
+ // this.route('search/:query/p:num', 'search', function(query, num) {
+ // ...
+ // });
+ //
+ route: function(route, name, callback) {
+ if (!_.isRegExp(route)) route = this._routeToRegExp(route);
+ if (!callback) callback = this[name];
+ Backbone.history.route(route, _.bind(function(fragment) {
+ var args = this._extractParameters(route, fragment);
+ callback && callback.apply(this, args);
+ this.trigger.apply(this, ['route:' + name].concat(args));
+ Backbone.history.trigger('route', this, name, args);
+ }, this));
+ return this;
+ },
+
+ // Simple proxy to `Backbone.history` to save a fragment into the history.
+ navigate: function(fragment, options) {
+ Backbone.history.navigate(fragment, options);
+ return this;
+ },
+
+ // Bind all defined routes to `Backbone.history`. We have to reverse the
+ // order of the routes here to support behavior where the most general
+ // routes can be defined at the bottom of the route map.
+ _bindRoutes: function() {
+ if (!this.routes) return;
+ var route, routes = _.keys(this.routes);
+ while ((route = routes.pop()) != null) {
+ this.route(route, this.routes[route]);
+ }
+ },
+
+ // Convert a route string into a regular expression, suitable for matching
+ // against the current location hash.
+ _routeToRegExp: function(route) {
+ route = route.replace(escapeRegExp, '\\$&')
+ .replace(optionalParam, '(?:$1)?')
+ .replace(namedParam, '([^\/]+)')
+ .replace(splatParam, '(.*?)');
+ return new RegExp('^' + route + '$');
+ },
+
+ // Given a route, and a URL fragment that it matches, return the array of
+ // extracted parameters.
+ _extractParameters: function(route, fragment) {
+ return route.exec(fragment).slice(1);
+ }
+
+ });
+
+ // Backbone.History
+ // ----------------
+
+ // Handles cross-browser history management, based on URL fragments. If the
+ // browser does not support `onhashchange`, falls back to polling.
+ var History = Backbone.History = function() {
+ this.handlers = [];
+ _.bindAll(this, 'checkUrl');
+
+ // 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 detecting MSIE.
+ var isExplorer = /msie [\w.]+/;
+
+ // Cached regex for removing a trailing slash.
+ var trailingSlash = /\/$/;
+
+ // Has the history handling already been started?
+ History.started = false;
+
+ // Set up all inheritable **Backbone.History** properties and methods.
+ _.extend(History.prototype, Events, {
+
+ // The default interval to poll for hash changes, if necessary, is
+ // twenty times a second.
+ interval: 50,
+
+ // Gets the true hash value. Cannot use location.hash directly due to bug
+ // in Firefox where location.hash will always be decoded.
+ getHash: function(window) {
+ var match = (window || this).location.href.match(/#(.*)$/);
+ return match ? match[1] : '';
+ },
+
+ // Get the cross-browser normalized URL fragment, either from the URL,
+ // the hash, or the override.
+ getFragment: function(fragment, forcePushState) {
+ if (fragment == null) {
+ if (this._hasPushState || !this._wantsHashChange || forcePushState) {
+ fragment = this.location.pathname;
+ var root = this.root.replace(trailingSlash, '');
+ if (!fragment.indexOf(root)) fragment = fragment.substr(root.length);
+ } 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._wantsPushState = !!this.options.pushState;
+ this._hasPushState = !!(this.options.pushState && this.history && this.history.pushState);
+ var fragment = this.getFragment();
+ var docMode = document.documentMode;
+ var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
+
+ // Normalize root to always include a leading and trailing slash.
+ this.root = ('/' + this.root + '/').replace(rootStripper, '/');
+
+ if (oldIE && this._wantsHashChange) {
+ this.iframe = Backbone.$('').hide().appendTo('body')[0].contentWindow;
+ this.navigate(fragment);
+ }
+
+ // Depending on whether we're using pushState or hashes, and whether
+ // 'onhashchange' is supported, determine how we check the URL state.
+ if (this._hasPushState) {
+ Backbone.$(window).bind('popstate', this.checkUrl);
+ } else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
+ Backbone.$(window).bind('hashchange', this.checkUrl);
+ } else if (this._wantsHashChange) {
+ this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
+ }
+
+ // Determine if we need to change the base url, for a pushState link
+ // opened by a non-pushState browser.
+ this.fragment = fragment;
+ var loc = this.location;
+ var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;
+
+ // If we've started off with a route from a `pushState`-enabled browser,
+ // but we're currently in a browser that doesn't support it...
+ if (this._wantsHashChange && this._wantsPushState && !this._hasPushState && !atRoot) {
+ this.fragment = this.getFragment(null, true);
+ this.location.replace(this.root + this.location.search + '#' + this.fragment);
+ // Return immediately as browser will do redirect to new url
+ return true;
+
+ // Or if we've started out with a hash-based route, but we're currently
+ // in a browser where it could be `pushState`-based instead...
+ } else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
+ this.fragment = this.getHash().replace(routeStripper, '');
+ this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
+ }
+
+ if (!this.options.silent) return this.loadUrl();
+ },
+
+ // Disable Backbone.history, perhaps temporarily. Not useful in a real app,
+ // but possibly useful for unit testing Routers.
+ stop: function() {
+ Backbone.$(window).unbind('popstate', this.checkUrl).unbind('hashchange', this.checkUrl);
+ 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 (current === this.fragment && this.iframe) {
+ current = this.getFragment(this.getHash(this.iframe));
+ }
+ if (current === this.fragment) return false;
+ if (this.iframe) this.navigate(current);
+ this.loadUrl() || this.loadUrl(this.getHash());
+ },
+
+ // 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(fragmentOverride) {
+ var fragment = this.fragment = this.getFragment(fragmentOverride);
+ var matched = _.any(this.handlers, function(handler) {
+ if (handler.route.test(fragment)) {
+ handler.callback(fragment);
+ return true;
+ }
+ });
+ return matched;
+ },
+
+ // 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};
+ fragment = this.getFragment(fragment || '');
+ if (this.fragment === fragment) return;
+ this.fragment = fragment;
+ var url = this.root + fragment;
+
+ // If pushState is available, we use it to set the fragment as a real URL.
+ if (this._hasPushState) {
+ 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.getFragment(this.getHash(this.iframe)))) {
+ // 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) this.iframe.document.open().close();
+ this._updateHash(this.iframe.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) 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:|#).*$/, '');
+ location.replace(href + '#' + fragment);
+ } else {
+ // Some browsers require that `hash` contains a leading #.
+ location.hash = '#' + fragment;
+ }
+ }
+
+ });
+
+ // Create the default Backbone.history.
+ Backbone.history = new History;
+
+ // Backbone.View
+ // -------------
+
+ // Creating a Backbone.View creates its initial element outside of the DOM,
+ // if an existing element is not provided...
+ var View = Backbone.View = function(options) {
+ this.cid = _.uniqueId('view');
+ this._configure(options || {});
+ this._ensureElement();
+ this.initialize.apply(this, arguments);
+ this.delegateEvents();
+ };
+
+ // Cached regex to split keys for `delegate`.
+ var delegateEventSplitter = /^(\S+)\s*(.*)$/;
+
+ // List of view options to be merged 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 prefered 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.$el.remove();
+ this.stopListening();
+ return this;
+ },
+
+ // For small amounts of DOM Elements, where a full-blown template isn't
+ // needed, use **make** to manufacture elements, one at a time.
+ //
+ // var el = this.make('li', {'class': 'row'}, this.model.escape('title'));
+ //
+ make: function(tagName, attributes, content) {
+ var el = document.createElement(tagName);
+ if (attributes) Backbone.$(el).attr(attributes);
+ if (content != null) Backbone.$(el).html(content);
+ return el;
+ },
+
+ // Change the view's element (`this.el` property), including event
+ // re-delegation.
+ setElement: function(element, delegate) {
+ if (this.$el) this.undelegateEvents();
+ this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
+ this.el = this.$el[0];
+ if (delegate !== false) this.delegateEvents();
+ return this;
+ },
+
+ // 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`.
+ // This only works for delegate-able events: not `focus`, `blur`, and
+ // not `change`, `submit`, and `reset` in Internet Explorer.
+ delegateEvents: function(events) {
+ if (!(events || (events = _.result(this, 'events')))) return;
+ this.undelegateEvents();
+ for (var key in events) {
+ var method = events[key];
+ if (!_.isFunction(method)) method = this[events[key]];
+ if (!method) throw new Error('Method "' + events[key] + '" does not exist');
+ var match = key.match(delegateEventSplitter);
+ var eventName = match[1], selector = match[2];
+ method = _.bind(method, this);
+ eventName += '.delegateEvents' + this.cid;
+ if (selector === '') {
+ this.$el.bind(eventName, method);
+ } else {
+ this.$el.delegate(selector, eventName, method);
+ }
+ }
+ },
+
+ // Clears all callbacks previously bound to the view with `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() {
+ this.$el.unbind('.delegateEvents' + this.cid);
+ },
+
+ // Performs the initial configuration of a View with a set of options.
+ // Keys with special meaning *(model, collection, id, className)*, are
+ // attached directly to the view.
+ _configure: function(options) {
+ if (this.options) options = _.extend({}, _.result(this, 'options'), options);
+ _.extend(this, _.pick(options, viewOptions));
+ this.options = options;
+ },
+
+ // Ensure that the View has a DOM element to render into.
+ // If `this.el` is a string, pass it through `$()`, 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.make(_.result(this, 'tagName'), attrs), false);
+ } else {
+ this.setElement(_.result(this, 'el'), false);
+ }
+ }
+
+ });
+
+ // Backbone.sync
+ // -------------
+
+ // Map from CRUD to HTTP for our default `Backbone.sync` implementation.
+ var methodMap = {
+ 'create': 'POST',
+ 'update': 'PUT',
+ 'patch': 'PATCH',
+ 'delete': 'DELETE',
+ 'read': 'GET'
+ };
+
+ // 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;
+ }
+
+ var success = options.success;
+ options.success = function(resp, status, xhr) {
+ if (success) success(resp, status, xhr);
+ model.trigger('sync', model, resp, options);
+ };
+
+ var error = options.error;
+ options.error = function(xhr, status, thrown) {
+ if (error) error(model, xhr, options);
+ model.trigger('error', model, xhr, options);
+ };
+
+ // Make the request, allowing the user to override any Ajax options.
+ var xhr = Backbone.ajax(_.extend(params, options));
+ model.trigger('request', model, xhr, options);
+ return xhr;
+ };
+
+ // Set the default implementation of `Backbone.ajax` to proxy through to `$`.
+ Backbone.ajax = function() {
+ return Backbone.$.ajax.apply(Backbone.$, arguments);
+ };
+
+ // 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's constructor.
+ if (protoProps && _.has(protoProps, 'constructor')) {
+ child = protoProps.constructor;
+ } else {
+ child = function(){ 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.
+ var Surrogate = function(){ this.constructor = child; };
+ Surrogate.prototype = parent.prototype;
+ child.prototype = new Surrogate;
+
+ // Add prototype properties (instance properties) to the subclass,
+ // if supplied.
+ if (protoProps) _.extend(child.prototype, protoProps);
+
+ // 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');
+ };
+
+}).call(this);
diff --git a/NzbDrone.Backbone/JsLibraries/backbone.marionette.js b/NzbDrone.Backbone/JsLibraries/backbone.marionette.js
new file mode 100644
index 000000000..521106c59
--- /dev/null
+++ b/NzbDrone.Backbone/JsLibraries/backbone.marionette.js
@@ -0,0 +1,2140 @@
+// Backbone.Marionette, v1.0.0-rc3
+// Copyright (c)2013 Derick Bailey, Muted Solutions, LLC.
+// Distributed under MIT license
+// http://github.com/marionettejs/backbone.marionette
+
+
+/*!
+ * Includes BabySitter
+ * https://github.com/marionettejs/backbone.babysitter/
+ *
+ * Includes Wreqr
+ * https://github.com/marionettejs/backbone.wreqr/
+ */
+
+
+// Backbone.BabySitter, v0.0.4
+// Copyright (c)2012 Derick Bailey, Muted Solutions, LLC.
+// Distributed under MIT license
+// http://github.com/marionettejs/backbone.babysitter
+// Backbone.ChildViewContainer
+// ---------------------------
+//
+// Provide a container to store, retrieve and
+// shut down child views.
+
+Backbone.ChildViewContainer = (function (Backbone, _) {
+
+ // Container Constructor
+ // ---------------------
+
+ var Container = function (initialViews) {
+ this._views = {};
+ this._indexByModel = {};
+ this._indexByCollection = {};
+ this._indexByCustom = {};
+ this._updateLength();
+
+ this._addInitialViews(initialViews);
+ };
+
+ // Container Methods
+ // -----------------
+
+ _.extend(Container.prototype, {
+
+ // Add a view to this container. Stores the view
+ // by `cid` and makes it searchable by the model
+ // and/or collection of the view. Optionally specify
+ // a custom key to store an retrieve the view.
+ add: function (view, customIndex) {
+ var viewCid = view.cid;
+
+ // store the view
+ this._views[viewCid] = view;
+
+ // index it by model
+ if (view.model) {
+ this._indexByModel[view.model.cid] = viewCid;
+ }
+
+ // index it by collection
+ if (view.collection) {
+ this._indexByCollection[view.collection.cid] = viewCid;
+ }
+
+ // index by custom
+ if (customIndex) {
+ this._indexByCustom[customIndex] = viewCid;
+ }
+
+ this._updateLength();
+ },
+
+ // Find a view by the model that was attached to
+ // it. Uses the model's `cid` to find it, and
+ // retrieves the view by it's `cid` from the result
+ findByModel: function (model) {
+ var viewCid = this._indexByModel[model.cid];
+ return this.findByCid(viewCid);
+ },
+
+ // Find a view by the collection that was attached to
+ // it. Uses the collection's `cid` to find it, and
+ // retrieves the view by it's `cid` from the result
+ findByCollection: function (col) {
+ var viewCid = this._indexByCollection[col.cid];
+ return this.findByCid(viewCid);
+ },
+
+ // Find a view by a custom indexer.
+ findByCustom: function (index) {
+ var viewCid = this._indexByCustom[index];
+ return this.findByCid(viewCid);
+ },
+
+ // Find by index. This is not guaranteed to be a
+ // stable index.
+ findByIndex: function (index) {
+ return _.values(this._views)[index];
+ },
+
+ // retrieve a view by it's `cid` directly
+ findByCid: function (cid) {
+ return this._views[cid];
+ },
+
+ // Remove a view
+ remove: function (view) {
+ var viewCid = view.cid;
+
+ // delete model index
+ if (view.model) {
+ delete this._indexByModel[view.model.cid];
+ }
+
+ // delete collection index
+ if (view.collection) {
+ delete this._indexByCollection[view.collection.cid];
+ }
+
+ // delete custom index
+ var cust;
+
+ for (var key in this._indexByCustom) {
+ if (this._indexByCustom.hasOwnProperty(key)) {
+ if (this._indexByCustom[key] === viewCid) {
+ cust = key;
+ break;
+ }
+ }
+ }
+
+ if (cust) {
+ delete this._indexByCustom[cust];
+ }
+
+ // remove the view from the container
+ delete this._views[viewCid];
+
+ // update the length
+ this._updateLength();
+ },
+
+ // Call a method on every view in the container,
+ // passing parameters to the call method one at a
+ // time, like `function.call`.
+ call: function (method, args) {
+ args = Array.prototype.slice.call(arguments, 1);
+ this.apply(method, args);
+ },
+
+ // Apply a method on every view in the container,
+ // passing parameters to the call method one at a
+ // time, like `function.apply`.
+ apply: function (method, args) {
+ var view;
+
+ // fix for IE < 9
+ args = args || [];
+
+ _.each(this._views, function (view, key) {
+ if (_.isFunction(view[method])) {
+ view[method].apply(view, args);
+ }
+ });
+
+ },
+
+ // Update the `.length` attribute on this container
+ _updateLength: function () {
+ this.length = _.size(this._views);
+ },
+
+ // set up an initial list of views
+ _addInitialViews: function (views) {
+ if (!views) { return; }
+
+ var view, i,
+ length = views.length;
+
+ for (i = 0; i < length; i++) {
+ view = views[i];
+ this.add(view);
+ }
+ }
+ });
+
+ // Borrowing this code from Backbone.Collection:
+ // http://backbonejs.org/docs/backbone.html#section-106
+ //
+ // Mix in methods from Underscore, for iteration, and other
+ // collection related features.
+ var methods = ['forEach', 'each', 'map', 'find', 'detect', 'filter',
+ 'select', 'reject', 'every', 'all', 'some', 'any', 'include',
+ 'contains', 'invoke', 'toArray', 'first', 'initial', 'rest',
+ 'last', 'without', 'isEmpty', 'pluck'];
+
+ _.each(methods, function (method) {
+ Container.prototype[method] = function () {
+ var views = _.values(this._views);
+ var args = [views].concat(_.toArray(arguments));
+ return _[method].apply(_, args);
+ };
+ });
+
+ // return the public API
+ return Container;
+})(Backbone, _);
+
+// Backbone.Wreqr, v0.2.0
+// Copyright (c)2012 Derick Bailey, Muted Solutions, LLC.
+// Distributed under MIT license
+// http://github.com/marionettejs/backbone.wreqr
+Backbone.Wreqr = (function (Backbone, Marionette, _) {
+ "option strict";
+ var Wreqr = {};
+
+ // Handlers
+ // --------
+ // A registry of functions to call, given a name
+
+ Wreqr.Handlers = (function (Backbone, _) {
+ "option strict";
+
+ // Constructor
+ // -----------
+
+ var Handlers = function () {
+ "use strict";
+ this._handlers = {};
+ };
+
+ Handlers.extend = Backbone.Model.extend;
+
+ // Instance Members
+ // ----------------
+
+ _.extend(Handlers.prototype, {
+
+ // Add a handler for the given name, with an
+ // optional context to run the handler within
+ addHandler: function (name, handler, context) {
+ var config = {
+ callback: handler,
+ context: context
+ };
+
+ this._handlers[name] = config;
+ },
+
+ // Get the currently registered handler for
+ // the specified name. Throws an exception if
+ // no handler is found.
+ getHandler: function (name) {
+ var config = this._handlers[name];
+
+ if (!config) {
+ throw new Error("Handler not found for '" + name + "'");
+ }
+
+ return function () {
+ var args = Array.prototype.slice.apply(arguments);
+ return config.callback.apply(config.context, args);
+ };
+ },
+
+ // Remove a handler for the specified name
+ removeHandler: function (name) {
+ delete this._handlers[name];
+ },
+
+ // Remove all handlers from this registry
+ removeAllHandlers: function () {
+ this._handlers = {};
+ }
+ });
+
+ return Handlers;
+ })(Backbone, _);
+
+ // Wreqr.Commands
+ // --------------
+ //
+ // A simple command pattern implementation. Register a command
+ // handler and execute it.
+ Wreqr.Commands = (function (Wreqr) {
+ "option strict";
+
+ return Wreqr.Handlers.extend({
+ execute: function () {
+ var name = arguments[0];
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ this.getHandler(name).apply(this, args);
+ }
+ });
+
+ })(Wreqr);
+
+ // Wreqr.RequestResponse
+ // ---------------------
+ //
+ // A simple request/response implementation. Register a
+ // request handler, and return a response from it
+ Wreqr.RequestResponse = (function (Wreqr) {
+ "option strict";
+
+ return Wreqr.Handlers.extend({
+ request: function () {
+ var name = arguments[0];
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ return this.getHandler(name).apply(this, args);
+ }
+ });
+
+ })(Wreqr);
+
+ // Event Aggregator
+ // ----------------
+ // A pub-sub object that can be used to decouple various parts
+ // of an application through event-driven architecture.
+
+ Wreqr.EventAggregator = (function (Backbone, _) {
+
+ // Grab a reference to the original listenTo
+ var listenTo = Backbone.Events.listenTo;
+
+ // Create a version of listenTo that allows contexting binding
+ function contextBoundListenTo(obj, evtSource, events, callback, context) {
+ context = context || obj;
+ return listenTo.call(obj, evtSource, events, _.bind(callback, context));
+ }
+
+ // Define the EventAggregator
+ function EventAggregator() { }
+
+ // Mix Backbone.Events in to it
+ _.extend(EventAggregator.prototype, Backbone.Events, {
+ // Override the listenTo so that we can have a version that
+ // correctly binds context
+ listenTo: function (evtSource, events, callback, context) {
+ return contextBoundListenTo(this, evtSource, events, callback, context);
+ }
+ });
+
+ // Allow it to be extended
+ EventAggregator.extend = Backbone.Model.extend;
+
+ return EventAggregator;
+ })(Backbone, _);
+
+
+ return Wreqr;
+})(Backbone, Backbone.Marionette, _);
+
+var Marionette = (function (Backbone, _, $) {
+ "use strict";
+
+ var Marionette = {};
+ Backbone.Marionette = Marionette;
+
+ // Helpers
+ // -------
+
+ // For slicing `arguments` in functions
+ var slice = Array.prototype.slice;
+
+ // Marionette.extend
+ // -----------------
+
+ // Borrow the Backbone `extend` method so we can use it as needed
+ Marionette.extend = Backbone.Model.extend;
+
+ // Marionette.getOption
+ // --------------------
+
+ // Retrieve an object, function or other value from a target
+ // object or it's `options`, with `options` taking precedence.
+ Marionette.getOption = function (target, optionName) {
+ if (!target || !optionName) { return; }
+ var value;
+
+ if (target.options && target.options[optionName]) {
+ value = target.options[optionName];
+ } else {
+ value = target[optionName];
+ }
+
+ return value;
+ };
+
+ // Mairionette.createObject
+ // ------------------------
+
+ // A wrapper / shim for `Object.create`. Uses native `Object.create`
+ // if available, otherwise shims it in place for Marionette to use.
+ Marionette.createObject = (function () {
+ var createObject;
+
+ // Define this once, and just replace the .prototype on it as needed,
+ // to improve performance in older / less optimized JS engines
+ function F() { }
+
+
+ // Check for existing native / shimmed Object.create
+ if (typeof Object.create === "function") {
+
+ // found native/shim, so use it
+ createObject = Object.create;
+
+ } else {
+
+ // An implementation of the Boodman/Crockford delegation
+ // w/ Cornford optimization, as suggested by @unscriptable
+ // https://gist.github.com/3959151
+
+ // native/shim not found, so shim it ourself
+ createObject = function (o) {
+
+ // set the prototype of the function
+ // so we will get `o` as the prototype
+ // of the new object instance
+ F.prototype = o;
+
+ // create a new object that inherits from
+ // the `o` parameter
+ var child = new F();
+
+ // clean up just in case o is really large
+ F.prototype = null;
+
+ // send it back
+ return child;
+ };
+
+ }
+
+ return createObject;
+ })();
+
+ // Trigger an event and a corresponding method name. Examples:
+ //
+ // `this.triggerMethod("foo")` will trigger the "foo" event and
+ // call the "onFoo" method.
+ //
+ // `this.triggerMethod("foo:bar") will trigger the "foo:bar" event and
+ // call the "onFooBar" method.
+ Marionette.triggerMethod = function () {
+ var args = Array.prototype.slice.apply(arguments);
+ var eventName = args[0];
+ var segments = eventName.split(":");
+ var segment, capLetter, methodName = "on";
+
+ for (var i = 0; i < segments.length; i++) {
+ segment = segments[i];
+ capLetter = segment.charAt(0).toUpperCase();
+ methodName += capLetter + segment.slice(1);
+ }
+
+ this.trigger.apply(this, args);
+
+ if (_.isFunction(this[methodName])) {
+ args.shift();
+ return this[methodName].apply(this, args);
+ }
+ };
+
+ // DOMRefresh
+ // ----------
+ //
+ // Monitor a view's state, and after it has been rendered and shown
+ // in the DOM, trigger a "dom:refresh" event every time it is
+ // re-rendered.
+
+ Marionette.MonitorDOMRefresh = (function () {
+ // track when the view has been rendered
+ function handleShow(view) {
+ view._isShown = true;
+ triggerDOMRefresh(view);
+ }
+
+ // track when the view has been shown in the DOM,
+ // using a Marionette.Region (or by other means of triggering "show")
+ function handleRender(view) {
+ view._isRendered = true;
+ triggerDOMRefresh(view);
+ }
+
+ // Trigger the "dom:refresh" event and corresponding "onDomRefresh" method
+ function triggerDOMRefresh(view) {
+ if (view._isShown && view._isRendered) {
+ if (_.isFunction(view.triggerMethod)) {
+ view.triggerMethod("dom:refresh");
+ }
+ }
+ }
+
+ // Export public API
+ return function (view) {
+ view.listenTo(view, "show", function () {
+ handleShow(view);
+ });
+
+ view.listenTo(view, "render", function () {
+ handleRender(view);
+ });
+ };
+ })();
+
+
+ // addEventBinder
+ // --------------
+ //
+ // Mixes in Backbone.Events to the target object, if it is not present
+ // already. Also adjusts the listenTo method to accept a 4th parameter
+ // for the callback context.
+
+ (function (Backbone, Marionette, _) {
+
+ // grab a reference to the original listenTo
+ var listenTo = Backbone.Events.listenTo;
+
+ // Fix the listenTo method on the target object, allowing the 4th
+ // context parameter to be specified
+ Marionette.addEventBinder = function (target) {
+ // If the target is not already extending Backbone.Events,
+ // then extend that on to it first
+ if (!target.on && !target.off && !target.listenTo && !target.stopListening) {
+ _.extend(target, Backbone.Events);
+ }
+
+ // Override the built-in listenTo method to make sure we
+ // account for context
+ target.listenTo = function (evtSource, events, callback, context) {
+ context = context || this;
+ return listenTo.call(this, evtSource, events, _.bind(callback, context));
+ };
+ };
+
+ })(Backbone, Marionette, _);
+
+
+ // Event Aggregator
+ // ----------------
+ // A pub-sub object that can be used to decouple various parts
+ // of an application through event-driven architecture.
+ //
+ // Extends [Backbone.Wreqr.EventAggregator](https://github.com/marionettejs/backbone.wreqr)
+ // and mixes in an EventBinder from [Backbone.EventBinder](https://github.com/marionettejs/backbone.eventbinder).
+ Marionette.EventAggregator = Backbone.Wreqr.EventAggregator.extend({
+
+ constructor: function () {
+ Marionette.addEventBinder(this);
+
+ var args = Array.prototype.slice.apply(arguments);
+ Backbone.Wreqr.EventAggregator.prototype.constructor.apply(this, args);
+ }
+
+ });
+
+ // Marionette.bindEntityEvents & unbindEntityEvents
+ // ---------------------------
+ //
+ // These methods are used to bind/unbind a backbone "entity" (collection/model)
+ // to methods on a target object.
+ //
+ // The first paremter, `target`, must have a `listenTo` method from the
+ // EventBinder object.
+ //
+ // The second parameter is the entity (Backbone.Model or Backbone.Collection)
+ // to bind the events from.
+ //
+ // The third parameter is a hash of { "event:name": "eventHandler" }
+ // configuration. Multiple handlers can be separated by a space. A
+ // function can be supplied instead of a string handler name.
+
+ (function (Marionette) {
+ "use strict";
+
+ // Bind the event to handlers specified as a string of
+ // handler names on the target object
+ function bindFromStrings(target, entity, evt, methods) {
+ var methodNames = methods.split(/\s+/);
+
+ _.each(methodNames, function (methodName) {
+
+ var method = target[methodName];
+ if (!method) {
+ throw new Error("Method '" + methodName + "' was configured as an event handler, but does not exist.");
+ }
+
+ target.listenTo(entity, evt, method, target);
+ });
+ }
+
+ // Bind the event to a supplied callback function
+ function bindToFunction(target, entity, evt, method) {
+ target.listenTo(entity, evt, method, target);
+ }
+
+ // Bind the event to handlers specified as a string of
+ // handler names on the target object
+ function unbindFromStrings(target, entity, evt, methods) {
+ var methodNames = methods.split(/\s+/);
+
+ _.each(methodNames, function (methodName) {
+ var method = target[method];
+ target.stopListening(entity, evt, method, target);
+ });
+ }
+
+ // Bind the event to a supplied callback function
+ function unbindToFunction(target, entity, evt, method) {
+ target.stopListening(entity, evt, method, target);
+ }
+
+
+ // generic looping function
+ function iterateEvents(target, entity, bindings, functionCallback, stringCallback) {
+ if (!entity || !bindings) { return; }
+
+ // allow the bindings to be a function
+ if (_.isFunction(bindings)) {
+ bindings = bindings.call(target);
+ }
+
+ // iterate the bindings and bind them
+ _.each(bindings, function (methods, evt) {
+
+ // allow for a function as the handler,
+ // or a list of event names as a string
+ if (_.isFunction(methods)) {
+ functionCallback(target, entity, evt, methods);
+ } else {
+ stringCallback(target, entity, evt, methods);
+ }
+
+ });
+ }
+
+ // Export Public API
+ Marionette.bindEntityEvents = function (target, entity, bindings) {
+ iterateEvents(target, entity, bindings, bindToFunction, bindFromStrings);
+ };
+
+ Marionette.unbindEntityEvents = function (target, entity, bindings) {
+ iterateEvents(target, entity, bindings, unbindToFunction, unbindFromStrings);
+ };
+
+ })(Marionette);
+
+
+ // Callbacks
+ // ---------
+
+ // A simple way of managing a collection of callbacks
+ // and executing them at a later point in time, using jQuery's
+ // `Deferred` object.
+ Marionette.Callbacks = function () {
+ this._deferred = $.Deferred();
+ this._callbacks = [];
+ };
+
+ _.extend(Marionette.Callbacks.prototype, {
+
+ // Add a callback to be executed. Callbacks added here are
+ // guaranteed to execute, even if they are added after the
+ // `run` method is called.
+ add: function (callback, contextOverride) {
+ this._callbacks.push({ cb: callback, ctx: contextOverride });
+
+ this._deferred.done(function (context, options) {
+ if (contextOverride) { context = contextOverride; }
+ callback.call(context, options);
+ });
+ },
+
+ // Run all registered callbacks with the context specified.
+ // Additional callbacks can be added after this has been run
+ // and they will still be executed.
+ run: function (options, context) {
+ this._deferred.resolve(context, options);
+ },
+
+ // Resets the list of callbacks to be run, allowing the same list
+ // to be run multiple times - whenever the `run` method is called.
+ reset: function () {
+ var that = this;
+ var callbacks = this._callbacks;
+ this._deferred = $.Deferred();
+ this._callbacks = [];
+ _.each(callbacks, function (cb) {
+ that.add(cb.cb, cb.ctx);
+ });
+ }
+ });
+
+
+ // Marionette Controller
+ // ---------------------
+ //
+ // A multi-purpose object to use as a controller for
+ // modules and routers, and as a mediator for workflow
+ // and coordination of other objects, views, and more.
+ Marionette.Controller = function (options) {
+ this.triggerMethod = Marionette.triggerMethod;
+ this.options = options || {};
+
+ Marionette.addEventBinder(this);
+
+ if (_.isFunction(this.initialize)) {
+ this.initialize(this.options);
+ }
+ };
+
+ Marionette.Controller.extend = Marionette.extend;
+
+ // Controller Methods
+ // --------------
+
+ // Ensure it can trigger events with Backbone.Events
+ _.extend(Marionette.Controller.prototype, Backbone.Events, {
+ close: function () {
+ this.stopListening();
+ this.triggerMethod("close");
+ this.unbind();
+ }
+ });
+
+ // Region
+ // ------
+ //
+ // Manage the visual regions of your composite application. See
+ // http://lostechies.com/derickbailey/2011/12/12/composite-js-apps-regions-and-region-managers/
+
+ Marionette.Region = function (options) {
+ this.options = options || {};
+
+ Marionette.addEventBinder(this);
+
+ this.el = Marionette.getOption(this, "el");
+
+ if (!this.el) {
+ var err = new Error("An 'el' must be specified for a region.");
+ err.name = "NoElError";
+ throw err;
+ }
+
+ if (this.initialize) {
+ var args = Array.prototype.slice.apply(arguments);
+ this.initialize.apply(this, args);
+ }
+ };
+
+
+ // Region Type methods
+ // -------------------
+
+ _.extend(Marionette.Region, {
+
+ // Build an instance of a region by passing in a configuration object
+ // and a default region type to use if none is specified in the config.
+ //
+ // The config object should either be a string as a jQuery DOM selector,
+ // a Region type directly, or an object literal that specifies both
+ // a selector and regionType:
+ //
+ // ```js
+ // {
+ // selector: "#foo",
+ // regionType: MyCustomRegion
+ // }
+ // ```
+ //
+ buildRegion: function (regionConfig, defaultRegionType) {
+ var regionIsString = (typeof regionConfig === "string");
+ var regionSelectorIsString = (typeof regionConfig.selector === "string");
+ var regionTypeIsUndefined = (typeof regionConfig.regionType === "undefined");
+ var regionIsType = (typeof regionConfig === "function");
+
+ if (!regionIsType && !regionIsString && !regionSelectorIsString) {
+ throw new Error("Region must be specified as a Region type, a selector string or an object with selector property");
+ }
+
+ var selector, RegionType;
+
+ // get the selector for the region
+
+ if (regionIsString) {
+ selector = regionConfig;
+ }
+
+ if (regionConfig.selector) {
+ selector = regionConfig.selector;
+ }
+
+ // get the type for the region
+
+ if (regionIsType) {
+ RegionType = regionConfig;
+ }
+
+ if (!regionIsType && regionTypeIsUndefined) {
+ RegionType = defaultRegionType;
+ }
+
+ if (regionConfig.regionType) {
+ RegionType = regionConfig.regionType;
+ }
+
+ // build the region instance
+
+ var regionManager = new RegionType({
+ el: selector
+ });
+
+ return regionManager;
+ }
+
+ });
+
+ // Region Instance Methods
+ // -----------------------
+
+ _.extend(Marionette.Region.prototype, Backbone.Events, {
+
+ // Displays a backbone view instance inside of the region.
+ // Handles calling the `render` method for you. Reads content
+ // directly from the `el` attribute. Also calls an optional
+ // `onShow` and `close` method on your view, just after showing
+ // or just before closing the view, respectively.
+ show: function (view) {
+
+ this.ensureEl();
+ this.close();
+
+ view.render();
+ this.open(view);
+
+ Marionette.triggerMethod.call(view, "show");
+ Marionette.triggerMethod.call(this, "show", view);
+
+ this.currentView = view;
+ },
+
+ ensureEl: function () {
+ if (!this.$el || this.$el.length === 0) {
+ this.$el = this.getEl(this.el);
+ }
+ },
+
+ // Override this method to change how the region finds the
+ // DOM element that it manages. Return a jQuery selector object.
+ getEl: function (selector) {
+ return $(selector);
+ },
+
+ // Override this method to change how the new view is
+ // appended to the `$el` that the region is managing
+ open: function (view) {
+ this.$el.empty().append(view.el);
+ },
+
+ // Close the current view, if there is one. If there is no
+ // current view, it does nothing and returns immediately.
+ close: function () {
+ var view = this.currentView;
+ if (!view || view.isClosed) { return; }
+
+ if (view.close) { view.close(); }
+ Marionette.triggerMethod.call(this, "close");
+
+ delete this.currentView;
+ },
+
+ // Attach an existing view to the region. This
+ // will not call `render` or `onShow` for the new view,
+ // and will not replace the current HTML for the `el`
+ // of the region.
+ attachView: function (view) {
+ this.currentView = view;
+ },
+
+ // Reset the region by closing any existing view and
+ // clearing out the cached `$el`. The next time a view
+ // is shown via this region, the region will re-query the
+ // DOM for the region's `el`.
+ reset: function () {
+ this.close();
+ delete this.$el;
+ }
+ });
+
+ // Copy the `extend` function used by Backbone's classes
+ Marionette.Region.extend = Marionette.extend;
+
+
+ // Template Cache
+ // --------------
+
+ // Manage templates stored in `