From da92e66e613323a5e22708b3c5dd849c7cf8a37d Mon Sep 17 00:00:00 2001 From: Rainer Wittmann Date: Wed, 30 Nov 2011 13:29:29 +0100 Subject: [PATCH 1/4] Updated to use AMDbackbone, underscore1.2.2, jquery 1.7 and jquerymobile1.0. Initial refactoring to leverage AMD. Goal is testing using requiere.js/backbone combo. --- app/app.js | 50 +- app/init.js | 54 +- app/libs/AMDbackbone-0.5.3.js | 1219 +++++ app/libs/LAB.min.js | 5 - app/libs/backbone-min.js | 33 - app/libs/jquery-1.7.1.js | 9266 ++++++++++++++++++++++++++++++++ app/libs/jquery-mobile.js | 146 - app/libs/jquery.1.6.1.min.js | 18 - app/libs/jquery.mobile-1.0.js | 6951 ++++++++++++++++++++++++ app/libs/underscore-1.2.2.js | 977 ++++ app/libs/underscore-min.js | 25 - app/models/photoCollection.js | 23 +- app/models/resultCollection.js | 29 +- app/models/resultEntry.js | 12 +- app/routers/router.js | 23 - app/routers/workspace.js | 28 + app/ui.js | 22 + app/utils.js | 359 +- app/views/appview.js | 93 +- app/views/photoList.js | 61 +- app/views/resultList.js | 63 +- index.html | 718 +-- temp.js | 17 + 23 files changed, 19271 insertions(+), 921 deletions(-) create mode 100644 app/libs/AMDbackbone-0.5.3.js delete mode 100644 app/libs/LAB.min.js delete mode 100644 app/libs/backbone-min.js create mode 100644 app/libs/jquery-1.7.1.js delete mode 100644 app/libs/jquery-mobile.js delete mode 100644 app/libs/jquery.1.6.1.min.js create mode 100644 app/libs/jquery.mobile-1.0.js create mode 100644 app/libs/underscore-1.2.2.js delete mode 100644 app/libs/underscore-min.js delete mode 100644 app/routers/router.js create mode 100644 app/routers/workspace.js create mode 100644 app/ui.js create mode 100644 temp.js diff --git a/app/app.js b/app/app.js index 5e0302c..621c2c0 100644 --- a/app/app.js +++ b/app/app.js @@ -1,12 +1,38 @@ -/*! -* Flickly - Backbone jQuery Mobile demo -* http://addyosmani.com -* Copyright (c) 2011 Addy Osmani -* Dual licensed under the MIT and GPL licenses. -*/ - -mobileSearch.views.appview = new AppView; -mobileSearch.routers.workspace = new Workspace(); -mobileSearch.utils.toggleNavigation(false); -Backbone.history.start(); - +/*! + * Flickly - Backbone jQuery Mobile demo + * http://addyosmani.com + * Copyright (c) 2011 Addy Osmani + * Dual licensed under the MIT and GPL licenses. + * + Initialize namespacing + */ +define( ['backbone', 'views/appview', 'routers/workspace', 'utils', 'ui'], + function( Backbone, AppView, Workspace, utils, ui ) { + // Using ECMAScript 5 strict mode during development. By default r.js will ignore that. + "use strict"; + window.mobileSearch = window.mobileSearch || {}; + + + + window.mobileSearch = { + views: { + appview: new AppView + }, + routers:{ + workspace:new Workspace() + }, + utils: utils, + ui: ui, + defaults:{ + resultsPerPage: 16, + safeSearch: 2, + maxDate:'', + minDate:'01/01/1970' + } + }; + + + window.mobileSearch.utils.toggleNavigation( false ); + Backbone.history.start(); + + } ); diff --git a/app/init.js b/app/init.js index 74a5748..a5f4dbd 100644 --- a/app/init.js +++ b/app/init.js @@ -1,21 +1,33 @@ -/* - Initialize namespacing -*/ - -var mobileSearch = mobileSearch || {}; - -mobileSearch = { - views:{}, - routers:{ - workspace:{} - }, - utils:{}, - ui:{}, - defaults:{ - resultsPerPage: 16, - safeSearch: 2, - maxDate:'', - minDate:'01/01/1970' - } -}; - +/*! + * Flickly - Backbone jQuery Mobile demo + * http://addyosmani.com + * Copyright (c) 2011 Addy Osmani + * Dual licensed under the MIT and GPL licenses. + * + Initialize namespacing + */ + +define( ['views/appview', 'router/workspace'], + function( AppView, Workspace ) { + + var mobileSearch = mobileSearch || {}; + + mobileSearch = { + views: new AppView, + routers:{ + workspace:new Workspace() + }, + utils:{}, + ui:{}, + defaults:{ + resultsPerPage: 16, + safeSearch: 2, + maxDate:'', + minDate:'01/01/1970' + } + }; + + mobileSearch.utils.toggleNavigation( false ); + Backbone.history.start(); + + } ); diff --git a/app/libs/AMDbackbone-0.5.3.js b/app/libs/AMDbackbone-0.5.3.js new file mode 100644 index 0000000..d952513 --- /dev/null +++ b/app/libs/AMDbackbone-0.5.3.js @@ -0,0 +1,1219 @@ +// Backbone.js 0.5.3 +// (c) 2010 Jeremy Ashkenas, DocumentCloud Inc. +// Backbone may be freely distributed under the MIT license. +// For all details and documentation: +// http://documentcloud.github.com/backbone + +// Use a factory function to attach Backbone properties to an exports value. +// Code at the end of this file creates the right define, require and exports +// values to allow Backbone to run in a CommonJS or AMD container or in the +// default browser environment. +(function(root, define){ define('backbone', function(require, exports) { + + // Initial Setup + // ------------- + + // Save the previous value of the `Backbone` variable. + var previousBackbone = root.Backbone; + + // The top-level namespace. All public Backbone classes and modules will + // be attached to this. + var Backbone = exports; + + // Current version of the library. Keep in sync with `package.json`. + Backbone.VERSION = '0.5.3'; + + // Require Underscore. + var _ = require('underscore'); + + // The DOM/Ajax library used internally by Backbone. It can be set to any + // library that supports the portions of the jQuery API used by Backbone. + // In the browser, by default Backbone looks for a global jQuery, Zepto or Ender. + var $ = require('jquery'); + + // 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 exports; + }; + + // 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 + // ----------------- + + // A module that can be mixed in to *any object* in order to provide it with + // custom events. You may `bind` or `unbind` a callback function to an event; + // `trigger`-ing an event fires all callbacks in succession. + // + // var object = {}; + // _.extend(object, Backbone.Events); + // object.bind('expand', function(){ alert('expanded'); }); + // object.trigger('expand'); + // + Backbone.Events = { + + // Bind an event, specified by a string name, `ev`, to a `callback` function. + // Passing `"all"` will bind the callback to all events fired. + bind : function(ev, callback, context) { + var calls = this._callbacks || (this._callbacks = {}); + var list = calls[ev] || (calls[ev] = []); + list.push([callback, context]); + return this; + }, + + // Remove one or many callbacks. If `callback` is null, removes all + // callbacks for the event. If `ev` is null, removes all bound callbacks + // for all events. + unbind : function(ev, callback) { + var calls; + if (!ev) { + this._callbacks = {}; + } else if (calls = this._callbacks) { + if (!callback) { + calls[ev] = []; + } else { + var list = calls[ev]; + if (!list) return this; + for (var i = 0, l = list.length; i < l; i++) { + if (list[i] && callback === list[i][0]) { + list[i] = null; + break; + } + } + } + } + return this; + }, + + // Trigger an event, firing all bound callbacks. Callbacks are passed the + // same arguments as `trigger` is, apart from the event name. + // Listening for `"all"` passes the true event name as the first argument. + trigger : function(eventName) { + var list, calls, ev, callback, args; + var both = 2; + if (!(calls = this._callbacks)) return this; + while (both--) { + ev = both ? eventName : 'all'; + if (list = calls[ev]) { + for (var i = 0, l = list.length; i < l; i++) { + if (!(callback = list[i])) { + list.splice(i, 1); i--; l--; + } else { + args = both ? Array.prototype.slice.call(arguments, 1) : arguments; + callback[0].apply(callback[1] || this, args); + } + } + } + } + return this; + } + + }; + + // Backbone.Model + // -------------- + + // Create a new model, with defined attributes. A client id (`cid`) + // is automatically generated and assigned for you. + Backbone.Model = function(attributes, options) { + var defaults; + attributes || (attributes = {}); + if (defaults = this.defaults) { + if (_.isFunction(defaults)) defaults = defaults.call(this); + attributes = _.extend({}, defaults, attributes); + } + this.attributes = {}; + this._escapedAttributes = {}; + this.cid = _.uniqueId('c'); + this.set(attributes, {silent : true}); + this._changed = false; + this._previousAttributes = _.clone(this.attributes); + if (options && options.collection) this.collection = options.collection; + this.initialize(attributes, options); + }; + + // Attach all inheritable methods to the Model prototype. + _.extend(Backbone.Model.prototype, Backbone.Events, { + + // Has the item been changed since the last `"change"` event? + _changed : false, + + // 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() { + return _.clone(this.attributes); + }, + + // Get the value of an attribute. + get : function(attr) { + return this.attributes[attr]; + }, + + // Get the HTML-escaped value of an attribute. + escape : function(attr) { + var html; + if (html = this._escapedAttributes[attr]) return html; + var val = this.attributes[attr]; + return this._escapedAttributes[attr] = escapeHTML(val == null ? '' : '' + val); + }, + + // Returns `true` if the attribute contains a value that is not null + // or undefined. + has : function(attr) { + return this.attributes[attr] != null; + }, + + // Set a hash of model attributes on the object, firing `"change"` unless you + // choose to silence it. + set : function(attrs, options) { + + // Extract attributes and options. + options || (options = {}); + if (!attrs) return this; + if (attrs.attributes) attrs = attrs.attributes; + var now = this.attributes, escaped = this._escapedAttributes; + + // Run validation. + if (!options.silent && this.validate && !this._performValidation(attrs, options)) return false; + + // Check for changes of `id`. + if (this.idAttribute in attrs) this.id = attrs[this.idAttribute]; + + // We're about to start triggering change events. + var alreadyChanging = this._changing; + this._changing = true; + + // Update attributes. + for (var attr in attrs) { + var val = attrs[attr]; + if (!_.isEqual(now[attr], val)) { + now[attr] = val; + delete escaped[attr]; + this._changed = true; + if (!options.silent) this.trigger('change:' + attr, this, val, options); + } + } + + // Fire the `"change"` event, if the model has been changed. + if (!alreadyChanging && !options.silent && this._changed) this.change(options); + this._changing = false; + 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) { + if (!(attr in this.attributes)) return this; + options || (options = {}); + var value = this.attributes[attr]; + + // Run validation. + var validObj = {}; + validObj[attr] = void 0; + if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false; + + // changedAttributes needs to know if an attribute has been unset. + (this._unsetAttributes || (this._unsetAttributes = [])).push(attr); + + // Remove the attribute. + delete this.attributes[attr]; + delete this._escapedAttributes[attr]; + if (attr == this.idAttribute) delete this.id; + this._changed = true; + if (!options.silent) { + this.trigger('change:' + attr, this, void 0, options); + this.change(options); + } + return this; + }, + + // Clear all attributes on the model, firing `"change"` unless you choose + // to silence it. + clear : function(options) { + options || (options = {}); + var attr; + var old = this.attributes; + + // Run validation. + var validObj = {}; + for (attr in old) validObj[attr] = void 0; + if (!options.silent && this.validate && !this._performValidation(validObj, options)) return false; + + this.attributes = {}; + this._escapedAttributes = {}; + this._changed = true; + if (!options.silent) { + for (attr in old) { + this.trigger('change:' + attr, this, void 0, options); + } + this.change(options); + } + return this; + }, + + // 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 = {}); + var model = this; + var success = options.success; + options.success = function(resp, status, xhr) { + if (!model.set(model.parse(resp, xhr), options)) return false; + if (success) success(model, resp); + }; + options.error = wrapError(options.error, model, options); + return (this.sync || Backbone.sync).call(this, '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(attrs, options) { + options || (options = {}); + if (attrs && !this.set(attrs, options)) return false; + var model = this; + var success = options.success; + options.success = function(resp, status, xhr) { + if (!model.set(model.parse(resp, xhr), options)) return false; + if (success) success(model, resp, xhr); + }; + options.error = wrapError(options.error, model, options); + var method = this.isNew() ? 'create' : 'update'; + return (this.sync || Backbone.sync).call(this, method, this, options); + }, + + // Destroy this model on the server if it was already persisted. Upon success, the model is removed + // from its collection, if it has one. + destroy : function(options) { + options || (options = {}); + if (this.isNew()) return this.trigger('destroy', this, this.collection, options); + var model = this; + var success = options.success; + options.success = function(resp) { + model.trigger('destroy', model, model.collection, options); + if (success) success(model, resp); + }; + options.error = wrapError(options.error, model, options); + return (this.sync || Backbone.sync).call(this, 'delete', this, options); + }, + + // 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 = getUrl(this.collection) || this.urlRoot || 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, xhr) { + return resp; + }, + + // Create a new model with identical attributes to this one. + clone : function() { + return new this.constructor(this); + }, + + // 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. + // Calling this will cause all objects observing the model to update. + change : function(options) { + this.trigger('change', this, options); + this._previousAttributes = _.clone(this.attributes); + this._unsetAttributes = null; + this._changed = false; + }, + + // Determine if the model has changed since the last `"change"` event. + // If you specify an attribute name, determine if that attribute has changed. + hasChanged : function(attr) { + if (attr) return this._previousAttributes[attr] != this.attributes[attr]; + return this._changed; + }, + + // 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. + changedAttributes : function(now) { + now || (now = this.attributes); + var old = this._previousAttributes, unset = this._unsetAttributes; + + var changed = false; + for (var attr in now) { + if (!_.isEqual(old[attr], now[attr])) { + changed || (changed = {}); + changed[attr] = now[attr]; + } + } + + if (unset) { + changed || (changed = {}); + var len = unset.length; + while (len--) changed[unset[len]] = void 0; + } + + return changed; + }, + + // Get the previous value of an attribute, recorded at the time the last + // `"change"` event was fired. + previous : function(attr) { + if (!attr || !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 a set of incoming attributes, returning `true` + // if all is well. If a specific `error` callback has been passed, + // call that instead of firing the general `"error"` event. + _performValidation : function(attrs, options) { + var error = this.validate(attrs); + if (error) { + if (options.error) { + options.error(this, error, options); + } else { + this.trigger('error', this, error, options); + } + return false; + } + return true; + } + + }); + + // 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. + Backbone.Collection = function(models, options) { + options || (options = {}); + if (options.comparator) this.comparator = options.comparator; + _.bindAll(this, '_onModelEvent', '_removeReference'); + this._reset(); + if (models) this.reset(models, {silent: true}); + this.initialize.apply(this, arguments); + }; + + // Define the Collection's inheritable methods. + _.extend(Backbone.Collection.prototype, Backbone.Events, { + + // The default model for a collection is just a **Backbone.Model**. + // This should be overridden in most cases. + model : Backbone.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() { + return this.map(function(model){ return model.toJSON(); }); + }, + + // Add a model, or list of models to the set. Pass **silent** to avoid + // firing the `added` event for every new model. + add : function(models, options) { + if (_.isArray(models)) { + for (var i = 0, l = models.length; i < l; i++) { + this._add(models[i], options); + } + } else { + this._add(models, options); + } + return this; + }, + + // Remove a model, or a list of models from the set. Pass silent to avoid + // firing the `removed` event for every model removed. + remove : function(models, options) { + if (_.isArray(models)) { + for (var i = 0, l = models.length; i < l; i++) { + this._remove(models[i], options); + } + } else { + this._remove(models, options); + } + return this; + }, + + // Get a model from the set by id. + get : function(id) { + if (id == null) return null; + return this._byId[id.id != null ? id.id : id]; + }, + + // Get a model from the set by client id. + getByCid : function(cid) { + return cid && this._byCid[cid.cid || cid]; + }, + + // Get the model at the given index. + at: function(index) { + return this.models[index]; + }, + + // 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) { + options || (options = {}); + if (!this.comparator) throw new Error('Cannot sort a set without a comparator'); + this.models = this.sortBy(this.comparator); + if (!options.silent) this.trigger('reset', this, options); + return this; + }, + + // Pluck an attribute from each model in the collection. + pluck : function(attr) { + return _.map(this.models, function(model){ return model.get(attr); }); + }, + + // 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 `added` or `removed` events. Fires `reset` when finished. + reset : function(models, options) { + models || (models = []); + options || (options = {}); + this.each(this._removeReference); + this._reset(); + this.add(models, {silent: true}); + 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 = {}); + var collection = this; + var success = options.success; + options.success = function(resp, status, xhr) { + collection[options.add ? 'add' : 'reset'](collection.parse(resp, xhr), options); + if (success) success(collection, resp); + }; + options.error = wrapError(options.error, collection, options); + return (this.sync || Backbone.sync).call(this, 'read', this, options); + }, + + // Create a new instance of a model in this collection. After the model + // has been created on the server, it will be added to the collection. + // Returns the model, or 'false' if validation on a new model fails. + create : function(model, options) { + var coll = this; + options || (options = {}); + model = this._prepareModel(model, options); + if (!model) return false; + var success = options.success; + options.success = function(nextModel, resp, xhr) { + coll.add(nextModel, options); + if (success) success(nextModel, resp, xhr); + }; + 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, xhr) { + return resp; + }, + + // 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(options) { + this.length = 0; + this.models = []; + this._byId = {}; + this._byCid = {}; + }, + + // Prepare a model to be added to this collection + _prepareModel: function(model, options) { + if (!(model instanceof Backbone.Model)) { + var attrs = model; + model = new this.model(attrs, {collection: this}); + if (model.validate && !model._performValidation(model.attributes, options)) model = false; + } else if (!model.collection) { + model.collection = this; + } + return model; + }, + + // Internal implementation of adding a single model to the set, updating + // hash indexes for `id` and `cid` lookups. + // Returns the model, or 'false' if validation on a new model fails. + _add : function(model, options) { + options || (options = {}); + model = this._prepareModel(model, options); + if (!model) return false; + var already = this.getByCid(model); + if (already) throw new Error(["Can't add the same model to a set twice", already.id]); + this._byId[model.id] = model; + this._byCid[model.cid] = model; + var index = options.at != null ? options.at : + this.comparator ? this.sortedIndex(model, this.comparator) : + this.length; + this.models.splice(index, 0, model); + model.bind('all', this._onModelEvent); + this.length++; + options.index = index; + if (!options.silent) model.trigger('add', model, this, options); + return model; + }, + + // Internal implementation of removing a single model from the set, updating + // hash indexes for `id` and `cid` lookups. + _remove : function(model, options) { + options || (options = {}); + model = this.getByCid(model) || this.get(model); + if (!model) return null; + delete this._byId[model.id]; + delete this._byCid[model.cid]; + var index = this.indexOf(model); + this.models.splice(index, 1); + this.length--; + options.index = index; + if (!options.silent) model.trigger('remove', model, this, options); + this._removeReference(model); + return model; + }, + + // Internal method to remove a model's ties to a collection. + _removeReference : function(model) { + if (this == model.collection) { + delete model.collection; + } + model.unbind('all', this._onModelEvent); + }, + + // 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(ev, model, collection, options) { + if ((ev == 'add' || ev == 'remove') && collection != this) return; + if (ev == 'destroy') { + this._remove(model, options); + } + if (model && ev === 'change:' + model.idAttribute) { + delete this._byId[model.previous(model.idAttribute)]; + 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', 'reduce', 'reduceRight', 'find', 'detect', + 'filter', 'select', 'reject', 'every', 'all', 'some', 'any', 'include', + 'contains', 'invoke', 'max', 'min', 'sortBy', 'sortedIndex', 'toArray', 'size', + 'first', 'rest', 'last', 'without', 'indexOf', 'lastIndexOf', 'isEmpty', 'groupBy']; + + // Mix in each Underscore method as a proxy to `Collection#models`. + _.each(methods, function(method) { + Backbone.Collection.prototype[method] = function() { + return _[method].apply(_, [this.models].concat(_.toArray(arguments))); + }; + }); + + // Backbone.Router + // ------------------- + + // Routers map faux-URLs to actions, and fire events when routes are + // matched. Creating a new one sets its `routes` hash, if not set statically. + 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 namedParam = /:([\w\d]+)/g; + var splatParam = /\*([\w\d]+)/g; + var escapeRegExp = /[-[\]{}()+?.,\\^$|#\s]/g; + + // Set up all inheritable **Backbone.Router** properties and methods. + _.extend(Backbone.Router.prototype, Backbone.Events, { + + // Initialize is an empty function by default. Override it with your own + // initialization logic. + initialize : function(){}, + + // Manually bind a single named route to a callback. For example: + // + // this.route('search/:query/p:num', 'search', function(query, num) { + // ... + // }); + // + route : function(route, name, callback) { + Backbone.history || (Backbone.history = new Backbone.History); + if (!_.isRegExp(route)) route = this._routeToRegExp(route); + Backbone.history.route(route, _.bind(function(fragment) { + var args = this._extractParameters(route, fragment); + callback.apply(this, args); + this.trigger.apply(this, ['route:' + name].concat(args)); + }, this)); + }, + + // Simple proxy to `Backbone.history` to save a fragment into the history. + navigate : function(fragment, triggerRoute) { + Backbone.history.navigate(fragment, triggerRoute); + }, + + // Bind all defined routes to `Backbone.history`. We have to reverse the + // order of the routes here to support behavior where the most general + // routes can be defined at the bottom of the route map. + _bindRoutes : function() { + if (!this.routes) return; + var routes = []; + for (var route in this.routes) { + routes.unshift([route, this.routes[route]]); + } + for (var i = 0, l = routes.length; i < l; i++) { + this.route(routes[i][0], routes[i][1], this[routes[i][1]]); + } + }, + + // Convert a route string into a regular expression, suitable for matching + // against the current location hash. + _routeToRegExp : function(route) { + route = route.replace(escapeRegExp, "\\$&") + .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. + Backbone.History = function() { + this.handlers = []; + _.bindAll(this, 'checkUrl'); + }; + + // Cached regex for cleaning hashes. + var hashStrip = /^#*/; + + // Cached regex for detecting MSIE. + var isExplorer = /msie [\w.]+/; + + // Has the history handling already been started? + var historyStarted = false; + + // Set up all inheritable **Backbone.History** properties and methods. + _.extend(Backbone.History.prototype, { + + // The default interval to poll for hash changes, if necessary, is + // twenty times a second. + interval: 50, + + // 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 || forcePushState) { + fragment = window.location.pathname; + var search = window.location.search; + if (search) fragment += search; + } else { + fragment = window.location.hash; + } + } + fragment = decodeURIComponent(fragment.replace(hashStrip, '')); + if (!fragment.indexOf(this.options.root)) fragment = fragment.substr(this.options.root.length); + return fragment; + }, + + // Start the hash change handling, returning `true` if the current URL matches + // an existing route, and `false` otherwise. + start : function(options) { + + // Figure out the initial configuration. Do we need an iframe? + // Is pushState desired ... is it available? + if (historyStarted) throw new Error("Backbone.history has already been started"); + this.options = _.extend({}, {root: '/'}, this.options, options); + this._wantsPushState = !!this.options.pushState; + this._hasPushState = !!(this.options.pushState && window.history && window.history.pushState); + var fragment = this.getFragment(); + var docMode = document.documentMode; + var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7)); + if (oldIE) { + this.iframe = $('