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- (function(root, factory) {
-
- if (typeof define === 'function' && define.amd) {
- define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
-
-
- root.Backbone = factory(root, exports, _, $);
- });
-
- } else if (typeof exports !== 'undefined') {
- var _ = require('underscore');
- factory(root, exports, _);
-
- } else {
- root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
- }
- }(this, function(root, Backbone, _, $) {
-
-
-
-
- var previousBackbone = root.Backbone;
-
- var array = [];
- var push = array.push;
- var slice = array.slice;
- var splice = array.splice;
-
- Backbone.VERSION = '1.1.2';
-
-
- Backbone.$ = $;
-
-
- Backbone.noConflict = function() {
- root.Backbone = previousBackbone;
- return this;
- };
-
-
-
- Backbone.emulateHTTP = false;
-
-
-
-
- Backbone.emulateJSON = false;
-
-
-
-
-
-
-
-
-
-
-
-
- var Events = Backbone.Events = {
-
-
- on: function(name, callback, context) {
- if (!eventsApi(this, 'on', name, [callback, context]) || !callback) return this;
- this._events || (this._events = {});
- var events = this._events[name] || (this._events[name] = []);
- events.push({callback: callback, context: context, ctx: context || this});
- return this;
- },
-
-
- 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;
- return this.on(name, once, context);
- },
-
-
-
-
- off: function(name, callback, context) {
- var retain, ev, events, names, i, l, j, k;
- if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
- if (!name && !callback && !context) {
- this._events = void 0;
- return this;
- }
- names = name ? [name] : _.keys(this._events);
- for (i = 0, l = names.length; i < l; i++) {
- name = names[i];
- if (events = this._events[name]) {
- this._events[name] = retain = [];
- if (callback || context) {
- for (j = 0, k = events.length; j < k; j++) {
- ev = events[j];
- if ((callback && callback !== ev.callback && callback !== ev.callback._callback) ||
- (context && context !== ev.context)) {
- retain.push(ev);
- }
- }
- }
- if (!retain.length) delete this._events[name];
- }
- }
- return this;
- },
-
-
-
-
- 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(events, args);
- if (allEvents) triggerEvents(allEvents, arguments);
- return this;
- },
-
-
- stopListening: function(obj, name, callback) {
- var listeningTo = this._listeningTo;
- if (!listeningTo) return this;
- var remove = !name && !callback;
- if (!callback && typeof name === 'object') callback = this;
- if (obj) (listeningTo = {})[obj._listenId] = obj;
- for (var id in listeningTo) {
- obj = listeningTo[id];
- obj.off(name, callback, this);
- if (remove || _.isEmpty(obj._events)) delete this._listeningTo[id];
- }
- return this;
- }
- };
-
- var eventSplitter = /\s+/;
-
-
-
- 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));
- }
- return false;
- }
-
- 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));
- }
- return false;
- }
- return true;
- };
-
-
-
- var triggerEvents = function(events, args) {
- var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
- switch (args.length) {
- case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
- case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
- case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
- case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
- default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args); return;
- }
- };
- var listenMethods = {listenTo: 'on', listenToOnce: 'once'};
-
-
-
- _.each(listenMethods, function(implementation, method) {
- Events[method] = function(obj, name, callback) {
- var listeningTo = this._listeningTo || (this._listeningTo = {});
- var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
- listeningTo[id] = obj;
- if (!callback && typeof name === 'object') callback = this;
- obj[implementation](name, callback, this);
- return this;
- };
- });
-
- Events.bind = Events.on;
- Events.unbind = Events.off;
-
-
- _.extend(Backbone, Events);
-
-
-
-
-
-
-
-
- var Model = Backbone.Model = function(attributes, options) {
- var attrs = attributes || {};
- options || (options = {});
- this.cid = _.uniqueId('c');
- this.attributes = {};
- if (options.collection) this.collection = options.collection;
- if (options.parse) attrs = this.parse(attrs, options) || {};
- attrs = _.defaults({}, attrs, _.result(this, 'defaults'));
- this.set(attrs, options);
- this.changed = {};
- this.initialize.apply(this, arguments);
- };
-
- _.extend(Model.prototype, Events, {
-
- changed: null,
-
- validationError: null,
-
-
- idAttribute: 'id',
-
-
- initialize: function(){},
-
- toJSON: function(options) {
- return _.clone(this.attributes);
- },
-
-
- sync: function() {
- return Backbone.sync.apply(this, arguments);
- },
-
- get: function(attr) {
- return this.attributes[attr];
- },
-
- escape: function(attr) {
- return _.escape(this.get(attr));
- },
-
-
- has: function(attr) {
- return this.get(attr) != null;
- },
-
-
-
- set: function(key, val, options) {
- var attr, attrs, unset, changes, silent, changing, prev, current;
- if (key == null) return this;
-
- if (typeof key === 'object') {
- attrs = key;
- options = val;
- } else {
- (attrs = {})[key] = val;
- }
- options || (options = {});
-
- if (!this._validate(attrs, options)) return false;
-
- unset = options.unset;
- silent = options.silent;
- changes = [];
- changing = this._changing;
- this._changing = true;
- if (!changing) {
- this._previousAttributes = _.clone(this.attributes);
- this.changed = {};
- }
- current = this.attributes, prev = this._previousAttributes;
-
- if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
-
- for (attr in attrs) {
- val = attrs[attr];
- if (!_.isEqual(current[attr], val)) changes.push(attr);
- if (!_.isEqual(prev[attr], val)) {
- this.changed[attr] = val;
- } else {
- delete this.changed[attr];
- }
- unset ? delete current[attr] : current[attr] = val;
- }
-
- if (!silent) {
- if (changes.length) this._pending = options;
- for (var i = 0, l = changes.length; i < l; i++) {
- this.trigger('change:' + changes[i], this, current[changes[i]], options);
- }
- }
-
-
- if (changing) return this;
- if (!silent) {
- while (this._pending) {
- options = this._pending;
- this._pending = false;
- this.trigger('change', this, options);
- }
- }
- this._pending = false;
- this._changing = false;
- return this;
- },
-
-
- unset: function(attr, options) {
- return this.set(attr, void 0, _.extend({}, options, {unset: true}));
- },
-
- clear: function(options) {
- var attrs = {};
- for (var key in this.attributes) attrs[key] = void 0;
- return this.set(attrs, _.extend({}, options, {unset: true}));
- },
-
-
- hasChanged: function(attr) {
- if (attr == null) return !_.isEmpty(this.changed);
- return _.has(this.changed, attr);
- },
-
-
-
-
-
-
- changedAttributes: function(diff) {
- if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
- var val, changed = false;
- var old = this._changing ? this._previousAttributes : this.attributes;
- for (var attr in diff) {
- if (_.isEqual(old[attr], (val = diff[attr]))) continue;
- (changed || (changed = {}))[attr] = val;
- }
- return changed;
- },
-
-
- previous: function(attr) {
- if (attr == null || !this._previousAttributes) return null;
- return this._previousAttributes[attr];
- },
-
-
- previousAttributes: function() {
- return _.clone(this._previousAttributes);
- },
-
-
-
- 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) {
- if (!model.set(model.parse(resp, options), options)) return false;
- if (success) success(model, resp, options);
- model.trigger('sync', model, resp, options);
- };
- wrapError(this, options);
- return this.sync('read', this, options);
- },
-
-
-
- save: function(key, val, options) {
- var attrs, method, xhr, attributes = this.attributes;
-
- if (key == null || typeof key === 'object') {
- attrs = key;
- options = val;
- } else {
- (attrs = {})[key] = val;
- }
- options = _.extend({validate: true}, options);
-
-
-
- if (attrs && !options.wait) {
- if (!this.set(attrs, options)) return false;
- } else {
- if (!this._validate(attrs, options)) return false;
- }
-
- if (attrs && options.wait) {
- this.attributes = _.extend({}, attributes, attrs);
- }
-
-
- if (options.parse === void 0) options.parse = true;
- var model = this;
- var success = options.success;
- options.success = function(resp) {
-
- model.attributes = attributes;
- var serverAttrs = model.parse(resp, options);
- if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
- if (_.isObject(serverAttrs) && !model.set(serverAttrs, options)) {
- return false;
- }
- if (success) success(model, resp, options);
- model.trigger('sync', model, resp, options);
- };
- wrapError(this, options);
- method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
- if (method === 'patch') options.attrs = attrs;
- xhr = this.sync(method, this, options);
-
- if (attrs && options.wait) this.attributes = attributes;
- return xhr;
- },
-
-
-
- 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 (!model.isNew()) model.trigger('sync', model, resp, options);
- };
- if (this.isNew()) {
- options.success();
- return false;
- }
- wrapError(this, options);
- var xhr = this.sync('delete', this, options);
- if (!options.wait) destroy();
- return xhr;
- },
-
-
-
- url: function() {
- var base =
- _.result(this, 'urlRoot') ||
- _.result(this.collection, 'url') ||
- urlError();
- if (this.isNew()) return base;
- return base.replace(/([^\/])$/, '$1/') + encodeURIComponent(this.id);
- },
-
-
- parse: function(resp, options) {
- return resp;
- },
-
- clone: function() {
- return new this.constructor(this.attributes);
- },
-
- isNew: function() {
- return !this.has(this.idAttribute);
- },
-
- isValid: function(options) {
- return this._validate({}, _.extend(options || {}, { validate: true }));
- },
-
-
- _validate: function(attrs, options) {
- if (!options.validate || !this.validate) return true;
- attrs = _.extend({}, this.attributes, attrs);
- var error = this.validationError = this.validate(attrs, options) || null;
- if (!error) return true;
- this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
- return false;
- }
- });
-
- var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit'];
-
- _.each(modelMethods, function(method) {
- Model.prototype[method] = function() {
- var args = slice.call(arguments);
- args.unshift(this.attributes);
- return _[method].apply(_, args);
- };
- });
-
-
-
-
-
-
-
-
-
-
-
- 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));
- };
-
- var setOptions = {add: true, remove: true, merge: true};
- var addOptions = {add: true, remove: false};
-
- _.extend(Collection.prototype, Events, {
-
-
- model: Model,
-
-
- initialize: function(){},
-
-
- toJSON: function(options) {
- return this.map(function(model){ return model.toJSON(options); });
- },
-
- sync: function() {
- return Backbone.sync.apply(this, arguments);
- },
-
- add: function(models, options) {
- return this.set(models, _.extend({merge: false}, options, addOptions));
- },
-
- remove: function(models, options) {
- var singular = !_.isArray(models);
- models = singular ? [models] : _.clone(models);
- options || (options = {});
- var i, l, index, model;
- for (i = 0, l = models.length; i < l; i++) {
- model = models[i] = this.get(models[i]);
- if (!model) continue;
- delete this._byId[model.id];
- delete this._byId[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, options);
- }
- return singular ? models[0] : models;
- },
-
-
-
-
- set: function(models, options) {
- options = _.defaults({}, options, setOptions);
- if (options.parse) models = this.parse(models, options);
- var singular = !_.isArray(models);
- models = singular ? (models ? [models] : []) : _.clone(models);
- var i, l, id, model, attrs, existing, sort;
- var at = options.at;
- var targetModel = this.model;
- var sortable = this.comparator && (at == null) && options.sort !== false;
- var sortAttr = _.isString(this.comparator) ? this.comparator : null;
- var toAdd = [], toRemove = [], modelMap = {};
- var add = options.add, merge = options.merge, remove = options.remove;
- var order = !sortable && add && remove ? [] : false;
-
-
- for (i = 0, l = models.length; i < l; i++) {
- attrs = models[i] || {};
- if (attrs instanceof Model) {
- id = model = attrs;
- } else {
- id = attrs[targetModel.prototype.idAttribute || 'id'];
- }
-
-
- if (existing = this.get(id)) {
- if (remove) modelMap[existing.cid] = true;
- if (merge) {
- attrs = attrs === model ? model.attributes : attrs;
- if (options.parse) attrs = existing.parse(attrs, options);
- existing.set(attrs, options);
- if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
- }
- models[i] = existing;
-
- } else if (add) {
- model = models[i] = this._prepareModel(attrs, options);
- if (!model) continue;
- toAdd.push(model);
- this._addReference(model, options);
- }
-
- model = existing || model;
- if (order && (model.isNew() || !modelMap[model.id])) order.push(model);
- modelMap[model.id] = true;
- }
-
- if (remove) {
- for (i = 0, l = this.length; i < l; ++i) {
- if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
- }
- if (toRemove.length) this.remove(toRemove, options);
- }
-
- if (toAdd.length || (order && order.length)) {
- if (sortable) sort = true;
- this.length += toAdd.length;
- if (at != null) {
- for (i = 0, l = toAdd.length; i < l; i++) {
- this.models.splice(at + i, 0, toAdd[i]);
- }
- } else {
- if (order) this.models.length = 0;
- var orderedModels = order || toAdd;
- for (i = 0, l = orderedModels.length; i < l; i++) {
- this.models.push(orderedModels[i]);
- }
- }
- }
-
- if (sort) this.sort({silent: true});
-
- if (!options.silent) {
- for (i = 0, l = toAdd.length; i < l; i++) {
- (model = toAdd[i]).trigger('add', model, this, options);
- }
- if (sort || (order && order.length)) this.trigger('sort', this, options);
- }
-
- return singular ? models[0] : models;
- },
-
-
-
-
- reset: function(models, options) {
- options || (options = {});
- for (var i = 0, l = this.models.length; i < l; i++) {
- this._removeReference(this.models[i], options);
- }
- options.previousModels = this.models;
- this._reset();
- models = this.add(models, _.extend({silent: true}, options));
- if (!options.silent) this.trigger('reset', this, options);
- return models;
- },
-
- push: function(model, options) {
- return this.add(model, _.extend({at: this.length}, options));
- },
-
- pop: function(options) {
- var model = this.at(this.length - 1);
- this.remove(model, options);
- return model;
- },
-
- unshift: function(model, options) {
- return this.add(model, _.extend({at: 0}, options));
- },
-
- shift: function(options) {
- var model = this.at(0);
- this.remove(model, options);
- return model;
- },
-
- slice: function() {
- return slice.apply(this.models, arguments);
- },
-
- get: function(obj) {
- if (obj == null) return void 0;
- return this._byId[obj] || this._byId[obj.id] || this._byId[obj.cid];
- },
-
- at: function(index) {
- return this.models[index];
- },
-
-
- where: function(attrs, first) {
- if (_.isEmpty(attrs)) return first ? void 0 : [];
- return this[first ? 'find' : 'filter'](function(model) {
- for (var key in attrs) {
- if (attrs[key] !== model.get(key)) return false;
- }
- return true;
- });
- },
-
-
- findWhere: function(attrs) {
- return this.where(attrs, true);
- },
-
-
-
- sort: function(options) {
- if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
- options || (options = {});
-
- 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.silent) this.trigger('sort', this, options);
- return this;
- },
-
- pluck: function(attr) {
- return _.invoke(this.models, 'get', attr);
- },
-
-
-
- fetch: function(options) {
- options = options ? _.clone(options) : {};
- if (options.parse === void 0) options.parse = true;
- var success = options.success;
- var collection = this;
- options.success = function(resp) {
- var method = options.reset ? 'reset' : 'set';
- collection[method](resp, options);
- if (success) success(collection, resp, options);
- collection.trigger('sync', collection, resp, options);
- };
- wrapError(this, options);
- return this.sync('read', this, options);
- },
-
-
-
- create: function(model, options) {
- options = options ? _.clone(options) : {};
- if (!(model = this._prepareModel(model, options))) return false;
- if (!options.wait) this.add(model, options);
- var collection = this;
- var success = options.success;
- options.success = function(model, resp) {
- if (options.wait) collection.add(model, options);
- if (success) success(model, resp, options);
- };
- model.save(null, options);
- return model;
- },
-
-
- parse: function(resp, options) {
- return resp;
- },
-
- clone: function() {
- return new this.constructor(this.models);
- },
-
-
- _reset: function() {
- this.length = 0;
- this.models = [];
- this._byId = {};
- },
-
-
- _prepareModel: function(attrs, options) {
- if (attrs instanceof Model) return attrs;
- options = options ? _.clone(options) : {};
- options.collection = this;
- var model = new this.model(attrs, options);
- if (!model.validationError) return model;
- this.trigger('invalid', this, model.validationError, options);
- return false;
- },
-
- _addReference: function(model, options) {
- this._byId[model.cid] = model;
- if (model.id != null) this._byId[model.id] = model;
- if (!model.collection) model.collection = this;
- model.on('all', this._onModelEvent, this);
- },
-
- _removeReference: function(model, options) {
- if (this === model.collection) delete model.collection;
- model.off('all', this._onModelEvent, this);
- },
-
-
-
-
- _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);
- }
- });
-
-
-
- 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', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
- 'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
- 'lastIndexOf', 'isEmpty', 'chain', 'sample'];
-
- _.each(methods, function(method) {
- Collection.prototype[method] = function() {
- var args = slice.call(arguments);
- args.unshift(this.models);
- return _[method].apply(_, args);
- };
- });
-
- var attributeMethods = ['groupBy', 'countBy', 'sortBy', 'indexBy'];
-
- _.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);
- };
- });
-
-
-
-
-
-
-
-
-
-
-
- var View = Backbone.View = function(options) {
- this.cid = _.uniqueId('view');
- options || (options = {});
- _.extend(this, _.pick(options, viewOptions));
- this._ensureElement();
- this.initialize.apply(this, arguments);
- this.delegateEvents();
- };
-
- var delegateEventSplitter = /^(\S+)\s*(.*)$/;
-
- var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];
-
- _.extend(View.prototype, Events, {
-
- tagName: 'div',
-
-
- $: function(selector) {
- return this.$el.find(selector);
- },
-
-
- initialize: function(){},
-
-
-
- render: function() {
- return this;
- },
-
-
- remove: function() {
- this.$el.remove();
- this.stopListening();
- return this;
- },
-
-
- setElement: function(element, delegate) {
- if (this.$el) this.undelegateEvents();
- this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
- this.el = this.$el[0];
- if (delegate !== false) this.delegateEvents();
- return this;
- },
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- delegateEvents: function(events) {
- if (!(events || (events = _.result(this, 'events')))) return this;
- this.undelegateEvents();
- for (var key in events) {
- var method = events[key];
- if (!_.isFunction(method)) method = this[events[key]];
- if (!method) continue;
- var match = key.match(delegateEventSplitter);
- var eventName = match[1], selector = match[2];
- method = _.bind(method, this);
- eventName += '.delegateEvents' + this.cid;
- if (selector === '') {
- this.$el.on(eventName, method);
- } else {
- this.$el.on(eventName, selector, method);
- }
- }
- return this;
- },
-
-
-
- undelegateEvents: function() {
- this.$el.off('.delegateEvents' + this.cid);
- return this;
- },
-
-
-
-
- _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');
- var $el = Backbone.$('<' + _.result(this, 'tagName') + '>').attr(attrs);
- this.setElement($el, false);
- } else {
- this.setElement(_.result(this, 'el'), false);
- }
- }
- });
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- Backbone.sync = function(method, model, options) {
- var type = methodMap[method];
-
- _.defaults(options || (options = {}), {
- emulateHTTP: Backbone.emulateHTTP,
- emulateJSON: Backbone.emulateJSON
- });
-
- var params = {type: type, dataType: 'json'};
-
- if (!options.url) {
- params.url = _.result(model, 'url') || urlError();
- }
-
- if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
- params.contentType = 'application/json';
- params.data = JSON.stringify(options.attrs || model.toJSON(options));
- }
-
- if (options.emulateJSON) {
- params.contentType = 'application/x-www-form-urlencoded';
- params.data = params.data ? {model: params.data} : {};
- }
-
-
- if (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
- params.type = 'POST';
- if (options.emulateJSON) params.data._method = type;
- var beforeSend = options.beforeSend;
- options.beforeSend = function(xhr) {
- xhr.setRequestHeader('X-HTTP-Method-Override', type);
- if (beforeSend) return beforeSend.apply(this, arguments);
- };
- }
-
- if (params.type !== 'GET' && !options.emulateJSON) {
- params.processData = false;
- }
-
-
-
- if (params.type === 'PATCH' && noXhrPatch) {
- params.xhr = function() {
- return new ActiveXObject("Microsoft.XMLHTTP");
- };
- }
-
- var xhr = options.xhr = Backbone.ajax(_.extend(params, options));
- model.trigger('request', model, xhr, options);
- return xhr;
- };
- var noXhrPatch =
- typeof window !== 'undefined' && !!window.ActiveXObject &&
- !(window.XMLHttpRequest && (new XMLHttpRequest).dispatchEvent);
-
- var methodMap = {
- 'create': 'POST',
- 'update': 'PUT',
- 'patch': 'PATCH',
- 'delete': 'DELETE',
- 'read': 'GET'
- };
-
-
- Backbone.ajax = function() {
- return Backbone.$.ajax.apply(Backbone.$, arguments);
- };
-
-
-
-
- var Router = Backbone.Router = function(options) {
- options || (options = {});
- if (options.routes) this.routes = options.routes;
- this._bindRoutes();
- this.initialize.apply(this, arguments);
- };
-
-
- var optionalParam = /\((.*?)\)/g;
- var namedParam = /(\(\?)?:\w+/g;
- var splatParam = /\*\w+/g;
- var escapeRegExp = /[\-{}\[\]+?.,\\\^$|#\s]/g;
-
- _.extend(Router.prototype, Events, {
-
-
- initialize: function(){},
-
-
-
-
-
-
- route: function(route, name, callback) {
- if (!_.isRegExp(route)) route = this._routeToRegExp(route);
- if (_.isFunction(name)) {
- callback = name;
- name = '';
- }
- if (!callback) callback = this[name];
- var router = this;
- Backbone.history.route(route, function(fragment) {
- var args = router._extractParameters(route, fragment);
- router.execute(callback, args);
- router.trigger.apply(router, ['route:' + name].concat(args));
- router.trigger('route', name, args);
- Backbone.history.trigger('route', router, name, args);
- });
- return this;
- },
-
-
- execute: function(callback, args) {
- if (callback) callback.apply(this, args);
- },
-
- navigate: function(fragment, options) {
- Backbone.history.navigate(fragment, options);
- return this;
- },
-
-
-
- _bindRoutes: function() {
- if (!this.routes) return;
- this.routes = _.result(this, 'routes');
- var route, routes = _.keys(this.routes);
- while ((route = routes.pop()) != null) {
- this.route(route, this.routes[route]);
- }
- },
-
-
- _routeToRegExp: function(route) {
- route = route.replace(escapeRegExp, '\\$&')
- .replace(optionalParam, '(?:$1)?')
- .replace(namedParam, function(match, optional) {
- return optional ? match : '([^/?]+)';
- })
- .replace(splatParam, '([^?]*?)');
- return new RegExp('^' + route + '(?:\\?([\\s\\S]*))?$');
- },
-
-
-
- _extractParameters: function(route, fragment) {
- var params = route.exec(fragment).slice(1);
- return _.map(params, function(param, i) {
-
- if (i === params.length - 1) return param || null;
- return param ? decodeURIComponent(param) : null;
- });
- }
- });
-
-
-
-
-
-
-
- var History = Backbone.History = function() {
- this.handlers = [];
- _.bindAll(this, 'checkUrl');
-
- if (typeof window !== 'undefined') {
- this.location = window.location;
- this.history = window.history;
- }
- };
-
- var routeStripper = /^[#\/]|\s+$/g;
-
- var rootStripper = /^\/+|\/+$/g;
-
- var isExplorer = /msie [\w.]+/;
-
- var trailingSlash = /\/$/;
-
- var pathStripper = /#.*$/;
-
- History.started = false;
-
- _.extend(History.prototype, Events, {
-
-
- interval: 50,
-
- atRoot: function() {
- return this.location.pathname.replace(/[^\/]$/, '$&/') === this.root;
- },
-
-
- getHash: function(window) {
- var match = (window || this).location.href.match(/#(.*)$/);
- return match ? match[1] : '';
- },
-
-
- getFragment: function(fragment, forcePushState) {
- if (fragment == null) {
- if (this._hasPushState || !this._wantsHashChange || forcePushState) {
- fragment = decodeURI(this.location.pathname + this.location.search);
- var root = this.root.replace(trailingSlash, '');
- if (!fragment.indexOf(root)) fragment = fragment.slice(root.length);
- } else {
- fragment = this.getHash();
- }
- }
- return fragment.replace(routeStripper, '');
- },
-
-
- start: function(options) {
- if (History.started) throw new Error("Backbone.history has already been started");
- History.started = true;
-
-
- this.options = _.extend({root: '/'}, this.options, options);
- this.root = this.options.root;
- this._wantsHashChange = this.options.hashChange !== false;
- this._wantsPushState = !!this.options.pushState;
- this._hasPushState = !!(this.options.pushState && this.history && this.history.pushState);
- var fragment = this.getFragment();
- var docMode = document.documentMode;
- var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
-
- this.root = ('/' + this.root + '/').replace(rootStripper, '/');
- if (oldIE && this._wantsHashChange) {
- var frame = Backbone.$('<iframe src="javascript:0" tabindex="-1">');
- this.iframe = frame.hide().appendTo('body')[0].contentWindow;
- this.navigate(fragment);
- }
-
-
- if (this._hasPushState) {
- Backbone.$(window).on('popstate', this.checkUrl);
- } else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
- Backbone.$(window).on('hashchange', this.checkUrl);
- } else if (this._wantsHashChange) {
- this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
- }
-
-
- this.fragment = fragment;
- var loc = this.location;
-
-
- if (this._wantsHashChange && this._wantsPushState) {
-
-
- if (!this._hasPushState && !this.atRoot()) {
- this.fragment = this.getFragment(null, true);
- this.location.replace(this.root + '#' + this.fragment);
-
- return true;
-
-
- } else if (this._hasPushState && this.atRoot() && loc.hash) {
- this.fragment = this.getHash().replace(routeStripper, '');
- this.history.replaceState({}, document.title, this.root + this.fragment);
- }
- }
- if (!this.options.silent) return this.loadUrl();
- },
-
-
- stop: function() {
- Backbone.$(window).off('popstate', this.checkUrl).off('hashchange', this.checkUrl);
- if (this._checkUrlInterval) clearInterval(this._checkUrlInterval);
- History.started = false;
- },
-
-
- route: function(route, callback) {
- this.handlers.unshift({route: route, callback: callback});
- },
-
-
- checkUrl: function(e) {
- var current = this.getFragment();
- if (current === this.fragment && this.iframe) {
- current = this.getFragment(this.getHash(this.iframe));
- }
- if (current === this.fragment) return false;
- if (this.iframe) this.navigate(current);
- this.loadUrl();
- },
-
-
-
- loadUrl: function(fragment) {
- fragment = this.fragment = this.getFragment(fragment);
- return _.any(this.handlers, function(handler) {
- if (handler.route.test(fragment)) {
- handler.callback(fragment);
- return true;
- }
- });
- },
-
-
-
-
-
-
-
- navigate: function(fragment, options) {
- if (!History.started) return false;
- if (!options || options === true) options = {trigger: !!options};
- var url = this.root + (fragment = this.getFragment(fragment || ''));
-
- fragment = fragment.replace(pathStripper, '');
- if (this.fragment === fragment) return;
- this.fragment = fragment;
-
- if (fragment === '' && url !== '/') url = url.slice(0, -1);
-
- if (this._hasPushState) {
- this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);
-
-
- } else if (this._wantsHashChange) {
- this._updateHash(this.location, fragment, options.replace);
- if (this.iframe && (fragment !== this.getFragment(this.getHash(this.iframe)))) {
-
-
-
- if(!options.replace) this.iframe.document.open().close();
- this._updateHash(this.iframe.location, fragment, options.replace);
- }
-
-
- } else {
- return this.location.assign(url);
- }
- if (options.trigger) return this.loadUrl(fragment);
- },
-
-
- _updateHash: function(location, fragment, replace) {
- if (replace) {
- var href = location.href.replace(/(javascript:|#).*$/, '');
- location.replace(href + '#' + fragment);
- } else {
-
- location.hash = '#' + fragment;
- }
- }
- });
-
- Backbone.history = new History;
-
-
-
-
-
- var extend = function(protoProps, staticProps) {
- var parent = this;
- var child;
-
-
-
- if (protoProps && _.has(protoProps, 'constructor')) {
- child = protoProps.constructor;
- } else {
- child = function(){ return parent.apply(this, arguments); };
- }
-
- _.extend(child, parent, staticProps);
-
-
- var Surrogate = function(){ this.constructor = child; };
- Surrogate.prototype = parent.prototype;
- child.prototype = new Surrogate;
-
-
- if (protoProps) _.extend(child.prototype, protoProps);
-
-
- child.__super__ = parent.prototype;
- return child;
- };
-
- Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
-
- var urlError = function() {
- throw new Error('A "url" property or function must be specified');
- };
-
- var wrapError = function(model, options) {
- var error = options.error;
- options.error = function(resp) {
- if (error) error(model, resp, options);
- model.trigger('error', model, resp, options);
- };
- };
- return Backbone;
- }));
|