/bower_components/backbone.marionette/lib/core/amd/backbone.marionette.js
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- // MarionetteJS (Backbone.Marionette)
- // ----------------------------------
- // v1.4.1
- //
- // Copyright (c)2013 Derick Bailey, Muted Solutions, LLC.
- // Distributed under MIT license
- //
- // http://marionettejs.com
- /*!
- * Includes BabySitter
- * https://github.com/marionettejs/backbone.babysitter/
- *
- * Includes Wreqr
- * https://github.com/marionettejs/backbone.wreqr/
- */
- (function (root, factory) {
- if (typeof exports === 'object') {
- var underscore = require('underscore');
- var backbone = require('backbone');
- var wreqr = require('backbone.wreqr');
- var babysitter = require('backbone.babysitter');
- module.exports = factory(underscore, backbone, wreqr, babysitter);
- } else if (typeof define === 'function' && define.amd) {
- define(['underscore', 'backbone', 'backbone.wreqr', 'backbone.babysitter'], factory);
- }
- }(this, function (_, Backbone) {
- var Marionette = (function(global, Backbone, _){
- "use strict";
- // Define and export the Marionette namespace
- var Marionette = {};
- Backbone.Marionette = Marionette;
- // Get the DOM manipulator for later use
- Marionette.$ = Backbone.$;
- // Helpers
- // -------
- // For slicing `arguments` in functions
- var protoSlice = Array.prototype.slice;
- function slice(args) {
- return protoSlice.call(args);
- }
- function throwError(message, name) {
- var error = new Error(message);
- error.name = name || 'Error';
- throw error;
- }
- // 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 its `options`, with `options` taking precedence.
- Marionette.getOption = function(target, optionName){
- if (!target || !optionName){ return; }
- var value;
- if (target.options && (optionName in target.options) && (target.options[optionName] !== undefined)){
- value = target.options[optionName];
- } else {
- value = target[optionName];
- }
- return value;
- };
- // Trigger an event and/or 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(){
- // split the event name on the :
- var splitter = /(^|:)(\w)/gi;
- // take the event section ("section1:section2:section3")
- // and turn it in to uppercase name
- function getEventName(match, prefix, eventName) {
- return eventName.toUpperCase();
- }
- // actual triggerMethod name
- var triggerMethod = function(event) {
- // get the method name from the event name
- var methodName = 'on' + event.replace(splitter, getEventName);
- var method = this[methodName];
- // trigger the event, if a trigger method exists
- if(_.isFunction(this.trigger)) {
- this.trigger.apply(this, arguments);
- }
- // call the onMethodName if it exists
- if (_.isFunction(method)) {
- // pass all arguments, except the event name
- return method.apply(this, _.tail(arguments));
- }
- };
- return triggerMethod;
- })();
- // 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 shown in the DOM,
- // using a Marionette.Region (or by other means of triggering "show")
- function handleShow(view){
- view._isShown = true;
- triggerDOMRefresh(view);
- }
- // track when the view has been rendered
- 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);
- });
- };
- })();
- // Marionette.bindEntityEvents & unbindEntityEvents
- // ---------------------------
- //
- // These methods are used to bind/unbind a backbone "entity" (collection/model)
- // to methods on a target object.
- //
- // The first parameter, `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) {
- throwError("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[methodName];
- 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 = Marionette.$.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 callbacks = this._callbacks;
- this._deferred = Marionette.$.Deferred();
- this._callbacks = [];
- _.each(callbacks, function(cb){
- this.add(cb.cb, cb.ctx);
- }, this);
- }
- });
- // 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 || {};
- 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 || {};
- 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 region = new RegionType({
- el: selector
- });
- // override the `getEl` function if we have a parentEl
- // this must be overridden to ensure the selector is found
- // on the first use of the region. if we try to assign the
- // region's `el` to `parentEl.find(selector)` in the object
- // literal to build the region, the element will not be
- // guaranteed to be in the DOM already, and will cause problems
- if (regionConfig.parentEl){
- region.getEl = function(selector) {
- var parentEl = regionConfig.parentEl;
- if (_.isFunction(parentEl)){
- parentEl = parentEl();
- }
- return parentEl.find(selector);
- };
- }
- return region;
- }
- });
- // 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();
- var isViewClosed = view.isClosed || _.isUndefined(view.$el);
- var isDifferentView = view !== this.currentView;
- if (isDifferentView) {
- this.close();
- }
- view.render();
- if (isDifferentView || isViewClosed) {
- this.open(view);
- }
- this.currentView = view;
- Marionette.triggerMethod.call(this, "show", view);
- Marionette.triggerMethod.call(view, "show");
- },
- ensureEl: function(){
- if (!this.$el || this.$el.length === 0){
- this.$el = this.getEl(this.el);
- }
- },
- // Override this method to change how the region finds the
- // DOM element that it manages. Return a jQuery selector object.
- getEl: function(selector){
- return Marionette.$(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; }
- // call 'close' or 'remove', depending on which is found
- if (view.close) { view.close(); }
- else if (view.remove) { view.remove(); }
- 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;
- // Marionette.RegionManager
- // ------------------------
- //
- // Manage one or more related `Marionette.Region` objects.
- Marionette.RegionManager = (function(Marionette){
- var RegionManager = Marionette.Controller.extend({
- constructor: function(options){
- this._regions = {};
- Marionette.Controller.prototype.constructor.call(this, options);
- },
- // Add multiple regions using an object literal, where
- // each key becomes the region name, and each value is
- // the region definition.
- addRegions: function(regionDefinitions, defaults){
- var regions = {};
- _.each(regionDefinitions, function(definition, name){
- if (typeof definition === "string"){
- definition = { selector: definition };
- }
- if (definition.selector){
- definition = _.defaults({}, definition, defaults);
- }
- var region = this.addRegion(name, definition);
- regions[name] = region;
- }, this);
- return regions;
- },
- // Add an individual region to the region manager,
- // and return the region instance
- addRegion: function(name, definition){
- var region;
- var isObject = _.isObject(definition);
- var isString = _.isString(definition);
- var hasSelector = !!definition.selector;
- if (isString || (isObject && hasSelector)){
- region = Marionette.Region.buildRegion(definition, Marionette.Region);
- } else if (_.isFunction(definition)){
- region = Marionette.Region.buildRegion(definition, Marionette.Region);
- } else {
- region = definition;
- }
- this._store(name, region);
- this.triggerMethod("region:add", name, region);
- return region;
- },
- // Get a region by name
- get: function(name){
- return this._regions[name];
- },
- // Remove a region by name
- removeRegion: function(name){
- var region = this._regions[name];
- this._remove(name, region);
- },
- // Close all regions in the region manager, and
- // remove them
- removeRegions: function(){
- _.each(this._regions, function(region, name){
- this._remove(name, region);
- }, this);
- },
- // Close all regions in the region manager, but
- // leave them attached
- closeRegions: function(){
- _.each(this._regions, function(region, name){
- region.close();
- }, this);
- },
- // Close all regions and shut down the region
- // manager entirely
- close: function(){
- this.removeRegions();
- var args = Array.prototype.slice.call(arguments);
- Marionette.Controller.prototype.close.apply(this, args);
- },
- // internal method to store regions
- _store: function(name, region){
- this._regions[name] = region;
- this._setLength();
- },
- // internal method to remove a region
- _remove: function(name, region){
- region.close();
- delete this._regions[name];
- this._setLength();
- this.triggerMethod("region:remove", name, region);
- },
- // set the number of regions current held
- _setLength: function(){
- this.length = _.size(this._regions);
- }
- });
- // 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) {
- RegionManager.prototype[method] = function() {
- var regions = _.values(this._regions);
- var args = [regions].concat(_.toArray(arguments));
- return _[method].apply(_, args);
- };
- });
- return RegionManager;
- })(Marionette);
- // Template Cache
- // --------------
- // Manage templates stored in `<script>` blocks,
- // caching them for faster access.
- Marionette.TemplateCache = function(templateId){
- this.templateId = templateId;
- };
- // TemplateCache object-level methods. Manage the template
- // caches from these method calls instead of creating
- // your own TemplateCache instances
- _.extend(Marionette.TemplateCache, {
- templateCaches: {},
- // Get the specified template by id. Either
- // retrieves the cached version, or loads it
- // from the DOM.
- get: function(templateId){
- var cachedTemplate = this.templateCaches[templateId];
- if (!cachedTemplate){
- cachedTemplate = new Marionette.TemplateCache(templateId);
- this.templateCaches[templateId] = cachedTemplate;
- }
- return cachedTemplate.load();
- },
- // Clear templates from the cache. If no arguments
- // are specified, clears all templates:
- // `clear()`
- //
- // If arguments are specified, clears each of the
- // specified templates from the cache:
- // `clear("#t1", "#t2", "...")`
- clear: function(){
- var i;
- var args = slice(arguments);
- var length = args.length;
- if (length > 0){
- for(i=0; i<length; i++){
- delete this.templateCaches[args[i]];
- }
- } else {
- this.templateCaches = {};
- }
- }
- });
- // TemplateCache instance methods, allowing each
- // template cache object to manage its own state
- // and know whether or not it has been loaded
- _.extend(Marionette.TemplateCache.prototype, {
- // Internal method to load the template
- load: function(){
- // Guard clause to prevent loading this template more than once
- if (this.compiledTemplate){
- return this.compiledTemplate;
- }
- // Load the template and compile it
- var template = this.loadTemplate(this.templateId);
- this.compiledTemplate = this.compileTemplate(template);
- return this.compiledTemplate;
- },
- // Load a template from the DOM, by default. Override
- // this method to provide your own template retrieval
- // For asynchronous loading with AMD/RequireJS, consider
- // using a template-loader plugin as described here:
- // https://github.com/marionettejs/backbone.marionette/wiki/Using-marionette-with-requirejs
- loadTemplate: function(templateId){
- var template = Marionette.$(templateId).html();
- if (!template || template.length === 0){
- throwError("Could not find template: '" + templateId + "'", "NoTemplateError");
- }
- return template;
- },
- // Pre-compile the template before caching it. Override
- // this method if you do not need to pre-compile a template
- // (JST / RequireJS for example) or if you want to change
- // the template engine used (Handebars, etc).
- compileTemplate: function(rawTemplate){
- return _.template(rawTemplate);
- }
- });
- // Renderer
- // --------
- // Render a template with data by passing in the template
- // selector and the data to render.
- Marionette.Renderer = {
- // Render a template with data. The `template` parameter is
- // passed to the `TemplateCache` object to retrieve the
- // template function. Override this method to provide your own
- // custom rendering and template handling for all of Marionette.
- render: function(template, data){
- if (!template) {
- var error = new Error("Cannot render the template since it's false, null or undefined.");
- error.name = "TemplateNotFoundError";
- throw error;
- }
- var templateFunc;
- if (typeof template === "function"){
- templateFunc = template;
- } else {
- templateFunc = Marionette.TemplateCache.get(template);
- }
- return templateFunc(data);
- }
- };
- // Marionette.View
- // ---------------
- // The core view type that other Marionette views extend from.
- Marionette.View = Backbone.View.extend({
- constructor: function(options){
- _.bindAll(this, "render");
- var args = Array.prototype.slice.apply(arguments);
- // this exposes view options to the view initializer
- // this is a backfill since backbone removed the assignment
- // of this.options
- // at some point however this may be removed
- this.options = _.extend({}, this.options, options);
- // parses out the @ui DSL for events
- this.events = this.normalizeUIKeys(_.result(this, 'events'));
- Backbone.View.prototype.constructor.apply(this, args);
- Marionette.MonitorDOMRefresh(this);
- this.listenTo(this, "show", this.onShowCalled, this);
- },
- // import the "triggerMethod" to trigger events with corresponding
- // methods if the method exists
- triggerMethod: Marionette.triggerMethod,
- // Get the template for this view
- // instance. You can set a `template` attribute in the view
- // definition or pass a `template: "whatever"` parameter in
- // to the constructor options.
- getTemplate: function(){
- return Marionette.getOption(this, "template");
- },
- // Mix in template helper methods. Looks for a
- // `templateHelpers` attribute, which can either be an
- // object literal, or a function that returns an object
- // literal. All methods and attributes from this object
- // are copies to the object passed in.
- mixinTemplateHelpers: function(target){
- target = target || {};
- var templateHelpers = Marionette.getOption(this, "templateHelpers");
- if (_.isFunction(templateHelpers)){
- templateHelpers = templateHelpers.call(this);
- }
- return _.extend(target, templateHelpers);
- },
- // allows for the use of the @ui. syntax within
- // a given key for triggers and events
- // swaps the @ui with the associated selector
- normalizeUIKeys: function(hash) {
- if (typeof(hash) === "undefined") {
- return;
- }
- _.each(_.keys(hash), function(v) {
- var split = v.split("@ui.");
- if (split.length === 2) {
- hash[split[0]+this.ui[split[1]]] = hash[v];
- delete hash[v];
- }
- }, this);
- return hash;
- },
- // Configure `triggers` to forward DOM events to view
- // events. `triggers: {"click .foo": "do:foo"}`
- configureTriggers: function(){
- if (!this.triggers) { return; }
- var triggerEvents = {};
- // Allow `triggers` to be configured as a function
- var triggers = this.normalizeUIKeys(_.result(this, "triggers"));
- // Configure the triggers, prevent default
- // action and stop propagation of DOM events
- _.each(triggers, function(value, key){
- var hasOptions = _.isObject(value);
- var eventName = hasOptions ? value.event : value;
- // build the event handler function for the DOM event
- triggerEvents[key] = function(e){
- // stop the event in its tracks
- if (e) {
- var prevent = e.preventDefault;
- var stop = e.stopPropagation;
- var shouldPrevent = hasOptions ? value.preventDefault : prevent;
- var shouldStop = hasOptions ? value.stopPropagation : stop;
- if (shouldPrevent && prevent) { prevent.apply(e); }
- if (shouldStop && stop) { stop.apply(e); }
- }
- // build the args for the event
- var args = {
- view: this,
- model: this.model,
- collection: this.collection
- };
- // trigger the event
- this.triggerMethod(eventName, args);
- };
- }, this);
- return triggerEvents;
- },
- // Overriding Backbone.View's delegateEvents to handle
- // the `triggers`, `modelEvents`, and `collectionEvents` configuration
- delegateEvents: function(events){
- this._delegateDOMEvents(events);
- Marionette.bindEntityEvents(this, this.model, Marionette.getOption(this, "modelEvents"));
- Marionette.bindEntityEvents(this, this.collection, Marionette.getOption(this, "collectionEvents"));
- },
- // internal method to delegate DOM events and triggers
- _delegateDOMEvents: function(events){
- events = events || this.events;
- if (_.isFunction(events)){ events = events.call(this); }
- var combinedEvents = {};
- var triggers = this.configureTriggers();
- _.extend(combinedEvents, events, triggers);
- Backbone.View.prototype.delegateEvents.call(this, combinedEvents);
- },
- // Overriding Backbone.View's undelegateEvents to handle unbinding
- // the `triggers`, `modelEvents`, and `collectionEvents` config
- undelegateEvents: function(){
- var args = Array.prototype.slice.call(arguments);
- Backbone.View.prototype.undelegateEvents.apply(this, args);
- Marionette.unbindEntityEvents(this, this.model, Marionette.getOption(this, "modelEvents"));
- Marionette.unbindEntityEvents(this, this.collection, Marionette.getOption(this, "collectionEvents"));
- },
- // Internal method, handles the `show` event.
- onShowCalled: function(){},
- // Default `close` implementation, for removing a view from the
- // DOM and unbinding it. Regions will call this method
- // for you. You can specify an `onClose` method in your view to
- // add custom code that is called after the view is closed.
- close: function(){
- if (this.isClosed) { return; }
- // allow the close to be stopped by returning `false`
- // from the `onBeforeClose` method
- var shouldClose = this.triggerMethod("before:close");
- if (shouldClose === false){
- return;
- }
- // mark as closed before doing the actual close, to
- // prevent infinite loops within "close" event handlers
- // that are trying to close other views
- this.isClosed = true;
- this.triggerMethod("close");
- // unbind UI elements
- this.unbindUIElements();
- // remove the view from the DOM
- this.remove();
- },
- // This method binds the elements specified in the "ui" hash inside the view's code with
- // the associated jQuery selectors.
- bindUIElements: function(){
- if (!this.ui) { return; }
- // store the ui hash in _uiBindings so they can be reset later
- // and so re-rendering the view will be able to find the bindings
- if (!this._uiBindings){
- this._uiBindings = this.ui;
- }
- // get the bindings result, as a function or otherwise
- var bindings = _.result(this, "_uiBindings");
- // empty the ui so we don't have anything to start with
- this.ui = {};
- // bind each of the selectors
- _.each(_.keys(bindings), function(key) {
- var selector = bindings[key];
- this.ui[key] = this.$(selector);
- }, this);
- },
- // This method unbinds the elements specified in the "ui" hash
- unbindUIElements: function(){
- if (!this.ui || !this._uiBindings){ return; }
- // delete all of the existing ui bindings
- _.each(this.ui, function($el, name){
- delete this.ui[name];
- }, this);
- // reset the ui element to the original bindings configuration
- this.ui = this._uiBindings;
- delete this._uiBindings;
- }
- });
- // Item View
- // ---------
- // A single item view implementation that contains code for rendering
- // with underscore.js templates, serializing the view's model or collection,
- // and calling several methods on extended views, such as `onRender`.
- Marionette.ItemView = Marionette.View.extend({
- // Setting up the inheritance chain which allows changes to
- // Marionette.View.prototype.constructor which allows overriding
- constructor: function(){
- Marionette.View.prototype.constructor.apply(this, slice(arguments));
- },
- // Serialize the model or collection for the view. If a model is
- // found, `.toJSON()` is called. If a collection is found, `.toJSON()`
- // is also called, but is used to populate an `items` array in the
- // resulting data. If both are found, defaults to the model.
- // You can override the `serializeData` method in your own view
- // definition, to provide custom serialization for your view's data.
- serializeData: function(){
- var data = {};
- if (this.model) {
- data = this.model.toJSON();
- }
- else if (this.collection) {
- data = { items: this.collection.toJSON() };
- }
- return data;
- },
- // Render the view, defaulting to underscore.js templates.
- // You can override this in your view definition to provide
- // a very specific rendering for your view. In general, though,
- // you should override the `Marionette.Renderer` object to
- // change how Marionette renders views.
- render: function(){
- this.isClosed = false;
- this.triggerMethod("before:render", this);
- this.triggerMethod("item:before:render", this);
- var data = this.serializeData();
- data = this.mixinTemplateHelpers(data);
- var template = this.getTemplate();
- var html = Marionette.Renderer.render(template, data);
- this.$el.html(html);
- this.bindUIElements();
- this.triggerMethod("render", this);
- this.triggerMethod("item:rendered", this);
- return this;
- },
- // Override the default close event to add a few
- // more events that are triggered.
- close: function(){
- if (this.isClosed){ return; }
- this.triggerMethod('item:before:close');
- Marionette.View.prototype.close.apply(this, slice(arguments));
- this.triggerMethod('item:closed');
- }
- });
- // Collection View
- // ---------------
- // A view that iterates over a Backbone.Collection
- // and renders an individual ItemView for each model.
- Marionette.CollectionView = Marionette.View.extend({
- // used as the prefix for item view events
- // that are forwarded through the collectionview
- itemViewEventPrefix: "itemview",
- // constructor
- constructor: function(options){
- this._initChildViewStorage();
- Marionette.View.prototype.constructor.apply(this, slice(arguments));
- this._initialEvents();
- this.initRenderBuffer();
- },
- // Instead of inserting elements one by one into the page,
- // it's much more performant to insert elements into a document
- // fragment and then insert that document fragment into the page
- initRenderBuffer: function() {
- this.elBuffer = document.createDocumentFragment();
- },
- startBuffering: function() {
- this.initRenderBuffer();
- this.isBuffering = true;
- },
- endBuffering: function() {
- this.appendBuffer(this, this.elBuffer);
- this.initRenderBuffer();
- this.isBuffering = false;
- },
- // Configured the initial events that the collection view
- // binds to. Override this method to prevent the initial
- // events, or to add your own initial events.
- _initialEvents: function(){
- if (this.collection){
- this.listenTo(this.collection, "add", this.addChildView, this);
- this.listenTo(this.collection, "remove", this.removeItemView, this);
- this.listenTo(this.collection, "reset", this.render, this);
- }
- },
- // Handle a child item added to the collection
- addChildView: function(item, collection, options){
- this.closeEmptyView();
- var ItemView = this.getItemView(item);
- var index = this.collection.indexOf(item);
- this.addItemView(item, ItemView, index);
- },
- // Override from `Marionette.View` to guarantee the `onShow` method
- // of child views is called.
- onShowCalled: function(){
- this.children.each(function(child){
- Marionette.triggerMethod.call(child, "show");
- });
- },
- // Internal method to trigger the before render callbacks
- // and events
- triggerBeforeRender: function(){
- this.triggerMethod("before:render", this);
- this.triggerMethod("collection:before:render", this);
- },
- // Internal method to trigger the rendered callbacks and
- // events
- triggerRendered: function(){
- this.triggerMethod("render", this);
- this.triggerMethod("collection:rendered", this);
- },
- // Render the collection of items. Override this method to
- // provide your own implementation of a render function for
- // the collection view.
- render: function(){
- this.isClosed = false;
- this.triggerBeforeRender();
- this._renderChildren();
- this.triggerRendered();
- return this;
- },
- // Internal method. Separated so that CompositeView can have
- // more control over events being triggered, around the rendering
- // process
- _renderChildren: function(){
- this.startBuffering();
- this.closeEmptyView();
- this.closeChildren();
- if (this.collection && this.collection.length > 0) {
- this.showCollection();
- } else {
- this.showEmptyView();
- }
- this.endBuffering();
- },
- // Internal method to loop through each item in the
- // collection view and show it
- showCollection: function(){
- var ItemView;
- this.collection.each(function(item, index){
- ItemView = this.getItemView(item);
- this.addItemView(item, ItemView, index);
- }, this);
- },
- // Internal method to show an empty view in place of
- // a collection of item views, when the collection is
- // empty
- showEmptyView: function(){
- var EmptyView = this.getEmptyView();
- if (EmptyView && !this._showingEmptyView){
- this._showingEmptyView = true;
- var model = new Backbone.Model();
- this.addItemView(model, EmptyView, 0);
- }
- },
- // Internal method to close an existing emptyView instance
- // if one exists. Called when a collection view has been
- // rendered empty, and then an item is added to the collection.
- closeEmptyView: function(){
- if (this._showingEmptyView){
- this.closeChildren();
- delete this._showingEmptyView;
- }
- },
- // Retrieve the empty view type
- getEmptyView: function(){
- return Marionette.getOption(this, "emptyView");
- },
- // Retrieve the itemView type, either from `this.options.itemView`
- // or from the `itemView` in the object definition. The "options"
- // takes precedence.
- getItemView: function(item){
- var itemView = Marionette.getOption(this, "itemView");
- if (!itemView){
- throwError("An `itemView` must be specified", "NoItemViewError");
- }
- return itemView;
- },
- // Render the child item's view and add it to the
- // HTML for the collection view.
- addItemView: function(item, ItemView, index){
- // get the itemViewOptions if any were specified
- var itemViewOptions = Marionette.getOption(this, "itemViewOptions");
- if (_.isFunction(itemViewOptions)){
- itemViewOptions = itemViewOptions.call(this, item, index);
- }
- // build the view
- var view = this.buildItemView(item, ItemView, itemViewOptions);
- // set up the child view event forwarding
- this.addChildViewEventForwarding(view);
- // this view is about to be added
- this.triggerMethod("before:item:added", view);
- // Store the child view itself so we can properly
- // remove and/or close it later
- this.children.add(view);
- // Render it and show it
- this.renderItemView(view, index);
- // call the "show" method if the collection view
- // has already been shown
- if (this._isShown){
- Marionette.triggerMethod.call(view, "show");
- }
- // this view was added
- this.triggerMethod("after:item:added", view);
- },
- // Set up the child view event forwarding. Uses an "itemview:"
- // prefix in front of all forwarded events.
- addChildViewEventForwarding: function(view){
- var prefix = Marionette.getOption(this, "itemViewEventPrefix");
- // Forward all child item view events through the parent,
- // prepending "itemview:" to the event name
- this.listenTo(view, "all", function(){
- var args = slice(arguments);
- args[0] = prefix + ":" + args[0];
- args.splice(1, 0, view);
- Marionette.triggerMethod.apply(this, args);
- }, this);
- },
- // render the item view
- renderItemView: function(view, index) {
- view.render();
- this.appendHtml(this, view, index);
- },
- // Build an `itemView` for every model in the collection.
- buildItemView: function(item, ItemViewType, itemViewOptions){
- var options = _.extend({model: item}, itemViewOptions);
- return new ItemViewType(options);
- },
- // get the child view by item it holds, and remove it
- removeItemView: function(item){
- var view = this.children.findByModel(item);
- this.removeChildView(view);
- this.checkEmpty();
- },
- // Remove the child view and close it
- removeChildView: function(view){
- // shut down the child view properly,
- // including events that the collection has from it
- if (view){
- this.stopListening(view);
- // call 'close' or 'remove', depending on which is found
- if (view.close) { view.close(); }
- else if (view.remove) { view.remove(); }
- this.children.remove(view);
- }
- this.triggerMethod("item:removed", view);
- },
- // helper to show the empty view if the collection is empty
- checkEmpty: function() {
- // check if we're empty now, and if we are, show the
- // empty view
- if (!this.collection || this.collection.length === 0){
- this.showEmptyView();
- }
- },
- // You might need to override this if you've overridden appendHtml
- appendBuffer: function(collectionView, buffer) {
- collectionView.$el.append(buffer);
- },
- // Append the HTML to the collection's `el`.
- // Override this method to do something other
- // then `.append`.
- appendHtml: function(collectionView, itemView, index){
- if (collectionView.isBuffering) {
- // buffering happens on reset events and initial renders
- // in order to reduce the number of inserts into the
- // document, which are expensive.
- collectionView.elBuffer.appendChild(itemView.el);
- }
- else {
- // If we've already rendered the main collection, just
- // append the new items directly into the element.
- collectionView.$el.append(itemView.el);
- }
- },
- // Internal method to set up the `children` object for
- // storing all of the child views
- _initChildViewStorage: function(){
- this.children = new Backbone.ChildViewContainer();
- },
- // Handle cleanup and other closing needs for
- // the collection of views.
- close: function(){
- if (this.isClosed){ return; }
- this.triggerMethod("collection:before:close");
- this.closeChildren();
- this.triggerMethod("collection:closed");
- Marionette.View.prototype.close.apply(this, slice(arguments));
- },
- // Close the child views that this collection view
- // is holding on to, if any
- closeChildren: function(){
- this.children.each(function(child){
- this.removeChildView(child);
- }, this);
- this.checkEmpty();
- }
- });
- // Composite View
- // --------------
- // Used for rendering a branch-leaf, hierarchical structure.
- // Extends directly from CollectionView and also renders an
- // an item view as `modelView`, for the top leaf
- Marionette.CompositeView = Marionette.CollectionView.extend({
- // Setting up the inheritance chain which allows changes to
- // Marionette.CollectionView.prototype.constructor which allows overriding
- constructor: function(){
- Marionette.CollectionView.prototype.constructor.apply(this, slice(arguments));
- },
- // Configured the initial events that the composite view
- // binds to. Override this method to prevent the initial
- // events, or to add your own initial events.
- _initialEvents: function(){
- // Bind only after composite view in rendered to avoid adding child views
- // to unexisting itemViewContainer
- this.once('render', function () {
- if (this.collection){
- this.listenTo(this.collection, "add", this.addChildView, this);
- this.listenTo(this.collection, "remove", this.removeItemView, this);
- this.listenTo(this.collection, "reset", this._renderChildren, this);
- }
- });
- },
- // Retrieve the `itemView` to be used when rendering each of
- // the items in the collection. The default is to return
- // `this.itemView` or Marionette.CompositeView if no `itemView`
- // has been defined
- getItemView: function(item){
- var itemView = Marionette.getOption(this, "itemView") || this.constructor;
- if (!itemView){
- throwError("An `itemView` must be specified", "NoItemViewError");
- }
- return itemView;
- },
- // Serialize the collection for the view.
- // You can override the `serializeData` method in your own view
- // definition, to provide custom serialization for your view's data.
- serializeData: function(){
- var data = {};
- if (this.model){
- data = this.model.toJSON();
- }
- return data;
- },
- // Renders the model once, and the collection once. Calling
- // this again will tell the model's view to re-render itself
- // but the collection will not re-render.
- render: function(){
- this.isRendered = true;
- this.isClosed = false;
- this.resetItemViewContainer();
- this.triggerBeforeRender();
- var html = this.renderModel();
- this.$el.html(html);
- // the ui bindings is done here and not at the end of render since they
- // will not be available until after the model is rendered, but should be
- // available before the collection is rendered.
- this.bindUIElements();
- this.triggerMethod("composite:model:rendered");
- this._renderChildren();
- this.triggerMethod("composite:rendered");
- this.triggerRendered();
- return this;
- },
- _renderChildren: function(){
- if (this.isRendered){
- Marionette.CollectionView.prototype._renderChildren.call(this);
- this.triggerMethod("composite:collection:rendered");
- }
- },
- // Render an individual model, if we have one, as
- // part of a composite view (branch / leaf). For example:
- // a treeview.
- renderModel: function(){
- var data = {};
- data = this.serializeData();
- data = this.mixinTemplateHelpers(data);
- var template = this.getTemplate();
- return Marionette.Renderer.render(template, data);
- },
- // You might need to override this if you've overridden appendHtml
- appendBuffer: function(compositeView, buffer) {
- var $container = this.getItemViewContainer(compositeView);
- $container.append(buffer);
- },
- // Appends the `el` of itemView instances to the specified
- // `itemViewContainer` (a jQuery selector). Override this method to
- // provide custom logic of how the child item view instances have their
- // HTML appended to the composite view instance.
- appendHtml: function(compositeView, itemView, index){
- if (compositeView.isBuffering) {
- compositeView.elBuffer.appendChild(itemView.el);
- }
- else {
- // If we've already rendered the main collection, just
- // append the new items directly into the element.
- var $container = this.getItemViewContainer(compositeView);
- $container.append(itemView.el);
- }
- },
- // Internal method to ensure an `$itemViewContainer` exists, for the
- // `appendHtml` method to use.
- getItemViewContainer: function(containerView){
- if ("$itemViewContainer" in containerView){
- return containerView.$itemViewContainer;
- }
- var container;
- var itemViewContainer = Marionette.getOption(containerView, "itemViewContainer");
- if (itemViewContainer){
- var selector = _.isFunction(itemViewContainer) ? itemViewContainer() : itemViewContainer;
- container = containerView.$(selector);
- if (container.length <= 0) {
- throwError("The specified `itemViewContainer` was not found: " + containerView.itemViewContainer, "ItemViewContainerMissingError");
- }
- } else {
- container = containerView.$el;
- }
- containerView.$itemViewContainer = container;
- return container;
- },
- // Internal method to reset the `$itemViewContainer` on render
- resetItemViewContainer: function(){
- if (this.$itemViewContainer){
- delete this.$itemViewContainer;
- }
- }
- });
- // Layout
- // ------
- // Used for managing application layouts, nested layouts and
- // multiple regions within an application or sub-application.
- //
- // A specialized view type that renders an area of HTML and then
- // attaches `Region` instances to the specified `regions`.
- // Used for composite view management and sub-application areas.
- Marionette.Layout = Marionette.ItemView.extend({
- regionType: Marionette.Region,
- // Ensure the regions are available when the `initialize` method
- // is called.
- constructor: function (options) {
- options = options || {};
- this._firstRender = true;
- this._initializeRegions(options);
- Marionette.ItemView.prototype.constructor.call(this, options);
- },
- // Layout's render will use the existing region objects the
- // first time it is called. Subsequent calls will close the
- // views that the regions are showing and then reset the `el`
- // for the regions to the newly rendered DOM elements.
- render: function(){
- if (this.isClosed){
- // a previously closed layout means we need to
- // completely re-initialize the regions
- this._initializeRegions();
- }
- if (this._firstRender) {
- // if this is the first render, don't do anything to
- // reset the regions
- this._firstRender = false;
- } else if (!this.isClosed){
- // If this is not the first render call, then we need to
- // re-initializing the `el` for each region
- this._reInitializeRegions();
- }
- var args = Array.prototype.slice.apply(arguments);
- var result = Marionette.ItemView.prototype.render.apply(this, args);
- return result;
- },
- // Handle closing regions, and then close the view itself.
- close: function () {
- if (this.isClosed){ return; }
- this.regionManager.close();
- var args = Array.prototype.slice.apply(arguments);
- Marionette.ItemView.prototype.close.apply(this, args);
- },
- // Add a single region, by name, to the layout
- addRegion: function(name, definition){
- var regions = {};
- regions[name] = definition;
- return this._buildRegions(regions)[name];
- },
- // Add multiple regions as a {name: definition, name2: def2} object literal
- addRegions: function(regions){
- this.regions = _.extend({}, this.regions, regions);
- return this._buildRegions(regions);
- },
- // Remove a single region from the Layout, by name
- removeRegion: function(name){
- delete this.regions[name];
- return this.regionManager.removeRegion(name);
- },
- // internal method to build regions
- _buildRegions: function(regions){
- var that = this;
- var defaults = {
- regionType: Marionette.getOption(this, "regionType"),
- parentEl: function(){ return that.$el; }
- };
- return this.regionManager.addRegions(regions, defaults);
- },
- // Internal method to initialize the regions that have been defined in a
- // `regions` attribute on this layout.
- _initializeRegions: function (options) {
- var regions;
- this._initRegionManager();
- if (_.isFunction(this.regions)) {
- regions = this.regions(options);
- } else {
- regions = this.regions || {};
- }
- this.addRegions(regions);
- },
- // Internal method to re-initialize all of the regions by updating the `el` that
- // they point to
- _reInitializeRegions: function(){
- this.regionManager.closeRegions();
- this.regionManager.each(function(region){
- region.reset();
- });
- },
- // Internal method to initialize the region manager
- // and all regions in it
- _initRegionManager: function(){
- this.regionManager = new Marionette.RegionManager();
- this.listenTo(this.regionManager, "region:add", function(name, region){
- this[name] = region;
- this.trigger("region:add", name, region);
- });
- this.listenTo(this.regionManager, "region:remove", function(name, region){
- delete this[name];
- this.trigger("region:remove", name, region);
- });
- }
- });
- // AppRouter
- // ---------
- // Reduce the boilerplate code of handling route events
- // and then calling a single method on another object.
- // Have your routers configured to call the method on
- // your object, directly.
- //
- // Configure an AppRouter with `appRoutes`.
- //
- // App routers can only take one `controller` object.
- // It is recommended that you divide your controller
- // objects in to smaller pieces of related functionality
- // and have multiple routers / controllers, instead of
- // just one giant router and controller.
- //
- …
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