My Blog

\n\n ## HTML `class` Attribute\n The HTML `class` attribute of a view's tag can be set by providing a `classNames` property\n that is set to an array of strings:\n\n MyView = Ember.View.extend({\n classNames: ['my-class', 'my-other-class']\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n `class` attribute values can also be set by providing a `classNameBindings` property\n set to an array of properties names for the view. The return value of these properties \n will be added as part of the value for the view's `class` attribute. These properties\n can be computed properties:\n\n MyView = Ember.View.extend({\n classNameBindings: ['propertyA', 'propertyB'],\n propertyA: 'from-a',\n propertyB: function(){\n if(someLogic){ return 'from-b'; }\n }.property()\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n If the value of a class name binding returns a boolean the property name itself\n will be used as the class name if the property is true. The class name will\n not be added if the value is `false` or `undefined`.\n\n MyView = Ember.View.extend({\n classNameBindings: ['hovered'],\n hovered: true\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n When using boolean class name bindings you can supply a string value other than the \n property name for use as the `class` HTML attribute by appending the preferred value after\n a \":\" character when defining the binding:\n\n MyView = Ember.View.extend({\n classNameBindings: ['awesome:so-very-cool'],\n awesome: true\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n\n Boolean value class name bindings whose property names are in a camelCase-style\n format will be converted to a dasherized format:\n\n MyView = Ember.View.extend({\n classNameBindings: ['isUrgent'],\n isUrgent: true\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n\n Class name bindings can also refer to object values that are found by\n traversing a path relative to the view itself:\n\n MyView = Ember.View.extend({\n classNameBindings: ['messages.empty']\n messages: Ember.Object.create({\n empty: true\n })\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n\n\n If you want to add a class name for a property which evaluates to true and\n and a different class name if it evaluates to false, you can pass a binding\n like this:\n\n // Applies 'enabled' class when isEnabled is true and 'disabled' when isEnabled is false\n Ember.View.create({\n classNameBindings: ['isEnabled:enabled:disabled']\n isEnabled: true\n });\n\n Will result in view instances with an HTML representation of:\n\n

\n\n When isEnabled is `false`, the resulting HTML reprensentation looks like this:\n\n

\n\n This syntax offers the convenience to add a class if a property is `false`:\n\n // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false\n Ember.View.create({\n classNameBindings: ['isEnabled::disabled']\n isEnabled: true\n });\n\n Will result in view instances with an HTML representation of:\n\n

\n\n When the `isEnabled` property on the view is set to `false`, it will result\n in view instances with an HTML representation of:\n\n

\n\n\n Updates to the the value of a class name binding will result in automatic update \n of the HTML `class` attribute in the view's rendered HTML representation.\n If the value becomes `false` or `undefined` the class name will be removed.\n\n Both `classNames` and `classNameBindings` are concatenated properties. \n See `Ember.Object` documentation for more information about concatenated properties.\n\n ## HTML Attributes\n The HTML attribute section of a view's tag can be set by providing an `attributeBindings`\n property set to an array of property names on the view. The return value of these properties\n will be used as the value of the view's HTML associated attribute:\n\n AnchorView = Ember.View.extend({\n tagName: 'a',\n attributeBindings: ['href'],\n href: 'http://google.com'\n })\n\n Will result in view instances with an HTML representation of:\n\n \n\n If the return value of an `attributeBindings` monitored property is a boolean\n the property will follow HTML's pattern of repeating the attribute's name as\n its value:\n\n MyTextInput = Ember.View.extend({\n tagName: 'input',\n attributeBindings: ['disabled'],\n disabled: true\n })\n\n Will result in view instances with an HTML representation of:\n\n \n\n `attributeBindings` can refer to computed properties:\n\n MyTextInput = Ember.View.extend({\n tagName: 'input',\n attributeBindings: ['disabled'],\n disabled: function(){\n if (someLogic) {\n return true;\n } else {\n return false;\n }\n }.property()\n })\n\n Updates to the the property of an attribute binding will result in automatic update \n of the HTML attribute in the view's rendered HTML representation.\n\n `attributeBindings` is a concatenated property. See `Ember.Object` documentation\n for more information about concatenated properties.\n\n ## Templates\n The HTML contents of a view's rendered representation are determined by its template.\n Templates can be any function that accepts an optional context parameter and returns\n a string of HTML that will be inserted within the view's tag. Most\n typically in Ember this function will be a compiled Ember.Handlebars template.\n\n AView = Ember.View.extend({\n template: Ember.Handlebars.compile('I am the template')\n })\n\n Will result in view instances with an HTML representation of:\n\n

I am the template

\n\n The default context of the compiled template will be the view instance itself:\n\n AView = Ember.View.extend({\n template: Ember.Handlebars.compile('Hello {{excitedGreeting}}')\n })\n\n aView = AView.create({\n content: Ember.Object.create({\n firstName: 'Barry'\n })\n excitedGreeting: function(){\n return this.get(\"content.firstName\") + \"!!!\"\n }\n })\n\n Will result in an HTML representation of:\n\n

Hello Barry!!!

\n\n Within an Ember application is more common to define a Handlebars templates as\n part of a page:\n\n \n\n And associate it by name using a view's `templateName` property:\n\n AView = Ember.View.extend({\n templateName: 'some-template'\n })\n\n Using a value for `templateName` that does not have a Handlebars template with a\n matching `data-template-name` attribute will throw an error.\n\n Assigning a value to both `template` and `templateName` properties will throw an error.\n\n For views classes that may have a template later defined (e.g. as the block portion of a `{{view}}`\n Handlebars helper call in another template or in a subclass), you can provide a `defaultTemplate`\n property set to compiled template function. If a template is not later provided for the view\n instance the `defaultTemplate` value will be used:\n\n AView = Ember.View.extend({\n defaultTemplate: Ember.Handlebars.compile('I was the default'),\n template: null,\n templateName: null\n })\n\n Will result in instances with an HTML representation of:\n\n

I was the default

\n\n If a `template` or `templateName` is provided it will take precedence over `defaultTemplate`:\n\n AView = Ember.View.extend({\n defaultTemplate: Ember.Handlebars.compile('I was the default')\n })\n\n aView = AView.create({\n template: Ember.Handlebars.compile('I was the template, not default')\n })\n\n Will result in the following HTML representation when rendered:\n\n

I was the template, not default

\n\n ## Layouts\n Views can have a secondary template that wraps their main template. Like\n primary templates, layouts can be any function that accepts an optional context\n parameter and returns a string of HTML that will be inserted inside view's tag. Views whose HTML\n element is self closing (e.g. ``) cannot have a layout and this property will be ignored.\n \n Most typically in Ember a layout will be a compiled Ember.Handlebars template.\n\n A view's layout can be set directly with the `layout` property or reference an\n existing Handlebars template by name with the `layoutName` property.\n\n A template used as a layout must contain a single use of the Handlebars `{{yield}}`\n helper. The HTML contents of a view's rendered `template` will be inserted at this location:\n\n AViewWithLayout = Ember.View.extend({\n layout: Ember.Handlebars.compile(\"

\")\n template: Ember.Handlebars.compile(\"I got wrapped\"),\n })\n\n Will result in view instances with an HTML representation of:\n\n

\n I got wrapped\n

\n\n See `Handlebars.helpers.yield` for more information.\n\n ## Responding to Browser Events\n Views can respond to user-initiated events in one of three ways: method implementation, \n through an event manager, and through `{{action}}` helper use in their template or layout.\n\n ### Method Implementation\n Views can respond to user-initiated events by implementing a method that matches the\n event name. A `jQuery.Event` object will be passed as the argument to this method.\n\n AView = Ember.View.extend({\n click: function(event){\n // will be called when when an instance's\n // rendered element is clicked\n }\n })\n\n ### Event Managers\n Views can define an object as their `eventManager` property. This object can then\n implement methods that match the desired event names. Matching events that occur\n on the view's rendered HTML or the rendered HTML of any of its DOM descendants \n will trigger this method. A `jQuery.Event` object will be passed as the first \n argument to the method and an `Ember.View` object as the second. The `Ember.View`\n will be the view whose rendered HTML was interacted with. This may be the view with\n the `eventManager` property or one of its descendent views.\n\n AView = Ember.View.extend({\n eventManager: Ember.Object.create({\n doubleClick: function(event, view){\n // will be called when when an instance's\n // rendered element or any rendering\n // of this views's descendent\n // elements is clicked\n }\n })\n })\n\n\n An event defined for an event manager takes precedence over events of the same\n name handled through methods on the view.\n\n\n AView = Ember.View.extend({\n mouseEnter: function(event){\n // will never trigger.\n },\n eventManager: Ember.Object.create({\n mouseEnter: function(event, view){\n // takes presedence over AView#mouseEnter\n }\n })\n })\n\n Similarly a view's event manager will take precedence for events of any views\n rendered as a descendent. A method name that matches an event name will not be called\n if the view instance was rendered inside the HTML representation of a view that has \n an `eventManager` property defined that handles events of the name. Events not handled\n by the event manager will still trigger method calls on the descendent.\n\n OuterView = Ember.View.extend({\n template: Ember.Handlebars.compile(\"outer {{#view InnerView}}inner{{/view}} outer\"),\n eventManager: Ember.Object.create({\n mouseEnter: function(event, view){\n // view might be instance of either\n // OutsideView or InnerView depending on\n // where on the page the user interaction occured\n }\n })\n })\n\n InnerView = Ember.View.extend({\n click: function(event){\n // will be called if rendered inside\n // an OuterView because OuterView's\n // eventManager doesn't handle click events\n },\n mouseEnter: function(event){\n // will never be called if rendered inside \n // an OuterView.\n }\n })\n\n ### Handlebars `{{action}}` Helper\n See `Handlebars.helpers.action`.\n\n ### Event Names\n Possible events names for any of the responding approaches described above are:\n\n Touch events: 'touchStart', 'touchMove', 'touchEnd', 'touchCancel'\n\n Keyboard events: 'keyDown', 'keyUp', 'keyPress'\n\n Mouse events: 'mouseDown', 'mouseUp', 'contextMenu', 'click', 'doubleClick', 'mouseMove',\n 'focusIn', 'focusOut', 'mouseEnter', 'mouseLeave'\n\n Form events: 'submit', 'change', 'focusIn', 'focusOut', 'input'\n\n HTML5 drag and drop events: 'dragStart', 'drag', 'dragEnter', 'dragLeave', 'drop', 'dragEnd'\n \n ## Handlebars `{{view}}` Helper\n Other `Ember.View` instances can be included as part of a view's template by using the `{{view}}`\n Handlebars helper. See `Handlebars.helpers.view` for additional information.\n\n @extends Ember.Object\n @extends Ember.Evented\n*/\nEmber.View = Ember.Object.extend(Ember.Evented,\n/** @scope Ember.View.prototype */ {\n\n /** @private */\n concatenatedProperties: ['classNames', 'classNameBindings', 'attributeBindings'],\n\n /**\n @type Boolean\n @default true\n @constant\n */\n isView: true,\n\n // ..........................................................\n // TEMPLATE SUPPORT\n //\n\n /**\n The name of the template to lookup if no template is provided.\n\n Ember.View will look for a template with this name in this view's\n `templates` object. By default, this will be a global object\n shared in `Ember.TEMPLATES`.\n\n @type String\n @default null\n */\n templateName: null,\n\n /**\n The name of the layout to lookup if no layout is provided.\n\n Ember.View will look for a template with this name in this view's\n `templates` object. By default, this will be a global object\n shared in `Ember.TEMPLATES`.\n\n @type String\n @default null\n */\n layoutName: null,\n\n /**\n The hash in which to look for `templateName`.\n\n @type Ember.Object\n @default Ember.TEMPLATES\n */\n templates: Ember.TEMPLATES,\n\n /**\n The template used to render the view. This should be a function that\n accepts an optional context parameter and returns a string of HTML that\n will be inserted into the DOM relative to its parent view.\n\n In general, you should set the `templateName` property instead of setting\n the template yourself.\n\n @field\n @type Function\n */\n template: Ember.computed(function(key, value) {\n if (value !== undefined) { return value; }\n\n var templateName = get(this, 'templateName'),\n template = this.templateForName(templateName, 'template');\n\n return template || get(this, 'defaultTemplate');\n }).property('templateName').cacheable(),\n\n /**\n The controller managing this view. If this property is set, it will be\n made available for use by the template.\n\n @type Object\n */\n controller: Ember.computed(function(key, value) {\n var parentView;\n\n if (arguments.length === 2) {\n return value;\n } else {\n parentView = get(this, 'parentView');\n return parentView ? get(parentView, 'controller') : null;\n }\n }).property().cacheable(),\n\n /**\n A view may contain a layout. A layout is a regular template but\n supersedes the `template` property during rendering. It is the\n responsibility of the layout template to retrieve the `template`\n property from the view (or alternatively, call `Handlebars.helpers.yield`,\n `{{yield}}`) to render it in the correct location.\n\n This is useful for a view that has a shared wrapper, but which delegates\n the rendering of the contents of the wrapper to the `template` property\n on a subclass.\n\n @field\n @type Function\n */\n layout: Ember.computed(function(key, value) {\n if (arguments.length === 2) { return value; }\n\n var layoutName = get(this, 'layoutName'),\n layout = this.templateForName(layoutName, 'layout');\n\n return layout || get(this, 'defaultLayout');\n }).property('layoutName').cacheable(),\n\n templateForName: function(name, type) {\n if (!name) { return; }\n\n var templates = get(this, 'templates'),\n template = get(templates, name);\n\n if (!template) {\n throw new Ember.Error(fmt('%@ - Unable to find %@ \"%@\".', [this, type, name]));\n }\n\n return template;\n },\n\n /**\n The object from which templates should access properties.\n\n This object will be passed to the template function each time the render\n method is called, but it is up to the individual function to decide what\n to do with it.\n\n By default, this will be the view itself.\n\n @type Object\n */\n context: Ember.computed(function(key, value) {\n if (arguments.length === 2) {\n set(this, '_context', value);\n return value;\n } else {\n return get(this, '_context');\n }\n }).cacheable(),\n\n /**\n @private\n\n Private copy of the view's template context. This can be set directly\n by Handlebars without triggering the observer that causes the view\n to be re-rendered.\n\n The context of a view is looked up as follows:\n\n 1. Specified controller\n 2. Supplied context (usually by Handlebars)\n 3. `parentView`'s context (for a child of a ContainerView)\n\n The code in Handlebars that overrides the `_context` property first\n checks to see whether the view has a specified controller. This is\n something of a hack and should be revisited.\n */\n _context: Ember.computed(function(key, value) {\n var parentView, controller, context;\n\n if (arguments.length === 2) {\n return value;\n }\n\n if (VIEW_PRESERVES_CONTEXT) {\n if (controller = get(this, 'controller')) {\n return controller;\n }\n\n parentView = get(this, '_parentView');\n if (parentView) {\n return get(parentView, '_context');\n }\n }\n\n return this;\n }).cacheable(),\n\n /**\n If a value that affects template rendering changes, the view should be\n re-rendered to reflect the new value.\n\n @private\n */\n _displayPropertyDidChange: Ember.observer(function() {\n this.rerender();\n }, 'context', 'controller'),\n\n /**\n If the view is currently inserted into the DOM of a parent view, this\n property will point to the parent of the view.\n\n @type Ember.View\n @default null\n */\n parentView: Ember.computed(function() {\n var parent = get(this, '_parentView');\n\n if (parent && parent.isVirtual) {\n return get(parent, 'parentView');\n } else {\n return parent;\n }\n }).property('_parentView').volatile(),\n\n _parentView: null,\n\n // return the current view, not including virtual views\n concreteView: Ember.computed(function() {\n if (!this.isVirtual) { return this; }\n else { return get(this, 'parentView'); }\n }).property('_parentView').volatile(),\n\n /**\n If false, the view will appear hidden in DOM.\n\n @type Boolean\n @default null\n */\n isVisible: true,\n\n /**\n Array of child views. You should never edit this array directly.\n Instead, use appendChild and removeFromParent.\n\n @private\n @type Array\n @default []\n */\n childViews: childViewsProperty,\n\n _childViews: [],\n\n /**\n When it's a virtual view, we need to notify the parent that their\n childViews will change.\n */\n _childViewsWillChange: Ember.beforeObserver(function() {\n if (this.isVirtual) {\n var parentView = get(this, 'parentView');\n if (parentView) { Ember.propertyWillChange(parentView, 'childViews'); }\n }\n }, 'childViews'),\n\n /**\n When it's a virtual view, we need to notify the parent that their\n childViews did change.\n */\n _childViewsDidChange: Ember.observer(function() {\n if (this.isVirtual) {\n var parentView = get(this, 'parentView');\n if (parentView) { Ember.propertyDidChange(parentView, 'childViews'); }\n }\n }, 'childViews'),\n\n /**\n Return the nearest ancestor that is an instance of the provided\n class.\n\n @param {Class} klass Subclass of Ember.View (or Ember.View itself)\n @returns Ember.View\n */\n nearestInstanceOf: function(klass) {\n var view = get(this, 'parentView');\n\n while (view) {\n if(view instanceof klass) { return view; }\n view = get(view, 'parentView');\n }\n },\n\n /**\n Return the nearest ancestor that has a given property.\n\n @param {String} property A property name\n @returns Ember.View\n */\n nearestWithProperty: function(property) {\n var view = get(this, 'parentView');\n\n while (view) {\n if (property in view) { return view; }\n view = get(view, 'parentView');\n }\n },\n\n /**\n Return the nearest ancestor whose parent is an instance of\n `klass`.\n\n @param {Class} klass Subclass of Ember.View (or Ember.View itself)\n @returns Ember.View\n */\n nearestChildOf: function(klass) {\n var view = get(this, 'parentView');\n\n while (view) {\n if(get(view, 'parentView') instanceof klass) { return view; }\n view = get(view, 'parentView');\n }\n },\n\n /**\n Return the nearest ancestor that is an Ember.CollectionView\n\n @returns Ember.CollectionView\n */\n collectionView: Ember.computed(function() {\n return this.nearestInstanceOf(Ember.CollectionView);\n }).cacheable(),\n\n /**\n Return the nearest ancestor that is a direct child of\n an Ember.CollectionView\n\n @returns Ember.View\n */\n itemView: Ember.computed(function() {\n return this.nearestChildOf(Ember.CollectionView);\n }).cacheable(),\n\n /**\n Return the nearest ancestor that has the property\n `content`.\n\n @returns Ember.View\n */\n contentView: Ember.computed(function() {\n return this.nearestWithProperty('content');\n }).cacheable(),\n\n /**\n @private\n\n When the parent view changes, recursively invalidate\n collectionView, itemView, and contentView\n */\n _parentViewDidChange: Ember.observer(function() {\n if (this.isDestroying) { return; }\n\n this.invokeRecursively(function(view) {\n view.propertyDidChange('collectionView');\n view.propertyDidChange('itemView');\n view.propertyDidChange('contentView');\n });\n\n if (get(this, 'parentView.controller') && !get(this, 'controller')) {\n this.notifyPropertyChange('controller');\n }\n }, '_parentView'),\n\n _controllerDidChange: Ember.observer(function() {\n if (this.isDestroying) { return; }\n\n this.forEachChildView(function(view) {\n view.propertyDidChange('controller');\n });\n }, 'controller'),\n\n cloneKeywords: function() {\n var templateData = get(this, 'templateData');\n\n var keywords = templateData ? Ember.copy(templateData.keywords) : {};\n set(keywords, 'view', get(this, 'concreteView'));\n set(keywords, 'controller', get(this, 'controller'));\n\n return keywords;\n },\n\n /**\n Called on your view when it should push strings of HTML into a\n Ember.RenderBuffer. Most users will want to override the `template`\n or `templateName` properties instead of this method.\n\n By default, Ember.View will look for a function in the `template`\n property and invoke it with the value of `context`. The value of\n `context` will be the view's controller unless you override it.\n\n @param {Ember.RenderBuffer} buffer The render buffer\n */\n render: function(buffer) {\n // If this view has a layout, it is the responsibility of the\n // the layout to render the view's template. Otherwise, render the template\n // directly.\n var template = get(this, 'layout') || get(this, 'template');\n\n if (template) {\n var context = get(this, '_context');\n var keywords = this.cloneKeywords();\n\n var data = {\n view: this,\n buffer: buffer,\n isRenderData: true,\n keywords: keywords\n };\n\n // Invoke the template with the provided template context, which\n // is the view by default. A hash of data is also passed that provides\n // the template with access to the view and render buffer.\n\n Ember.assert('template must be a function. Did you mean to call Ember.Handlebars.compile(\"...\") or specify templateName instead?', typeof template === 'function');\n // The template should write directly to the render buffer instead\n // of returning a string.\n var output = template(context, { data: data });\n\n // If the template returned a string instead of writing to the buffer,\n // push the string onto the buffer.\n if (output !== undefined) { buffer.push(output); }\n }\n },\n\n invokeForState: function(name) {\n var stateName = this.state, args, fn;\n\n // try to find the function for the state in the cache\n if (fn = invokeForState[stateName][name]) {\n args = a_slice.call(arguments);\n args[0] = this;\n\n return fn.apply(this, args);\n }\n\n // otherwise, find and cache the function for this state\n var parent = this, states = parent.states, state;\n\n while (states) {\n state = states[stateName];\n\n while (state) {\n fn = state[name];\n\n if (fn) {\n invokeForState[stateName][name] = fn;\n\n args = a_slice.call(arguments, 1);\n args.unshift(this);\n\n return fn.apply(this, args);\n }\n\n state = state.parentState;\n }\n\n states = states.parent;\n }\n },\n\n /**\n Renders the view again. This will work regardless of whether the\n view is already in the DOM or not. If the view is in the DOM, the\n rendering process will be deferred to give bindings a chance\n to synchronize.\n\n If children were added during the rendering process using `appendChild`,\n `rerender` will remove them, because they will be added again\n if needed by the next `render`.\n\n In general, if the display of your view changes, you should modify\n the DOM element directly instead of manually calling `rerender`, which can\n be slow.\n */\n rerender: function() {\n return this.invokeForState('rerender');\n },\n\n clearRenderedChildren: function() {\n var lengthBefore = this.lengthBeforeRender,\n lengthAfter = this.lengthAfterRender;\n\n // If there were child views created during the last call to render(),\n // remove them under the assumption that they will be re-created when\n // we re-render.\n\n // VIEW-TODO: Unit test this path.\n var childViews = this._childViews;\n for (var i=lengthAfter-1; i>=lengthBefore; i--) {\n if (childViews[i]) { childViews[i].destroy(); }\n }\n },\n\n /**\n @private\n\n Iterates over the view's `classNameBindings` array, inserts the value\n of the specified property into the `classNames` array, then creates an\n observer to update the view's element if the bound property ever changes\n in the future.\n */\n _applyClassNameBindings: function() {\n var classBindings = get(this, 'classNameBindings'),\n classNames = get(this, 'classNames'),\n elem, newClass, dasherizedClass;\n\n if (!classBindings) { return; }\n\n // Loop through all of the configured bindings. These will be either\n // property names ('isUrgent') or property paths relative to the view\n // ('content.isUrgent')\n a_forEach(classBindings, function(binding) {\n\n // Variable in which the old class value is saved. The observer function\n // closes over this variable, so it knows which string to remove when\n // the property changes.\n var oldClass;\n\n // Set up an observer on the context. If the property changes, toggle the\n // class name.\n var observer = function() {\n // Get the current value of the property\n newClass = this._classStringForProperty(binding);\n elem = this.$();\n\n // If we had previously added a class to the element, remove it.\n if (oldClass) {\n elem.removeClass(oldClass);\n // Also remove from classNames so that if the view gets rerendered,\n // the class doesn't get added back to the DOM.\n classNames.removeObject(oldClass);\n }\n\n // If necessary, add a new class. Make sure we keep track of it so\n // it can be removed in the future.\n if (newClass) {\n elem.addClass(newClass);\n oldClass = newClass;\n } else {\n oldClass = null;\n }\n };\n\n // Get the class name for the property at its current value\n dasherizedClass = this._classStringForProperty(binding);\n\n if (dasherizedClass) {\n // Ensure that it gets into the classNames array\n // so it is displayed when we render.\n classNames.push(dasherizedClass);\n\n // Save a reference to the class name so we can remove it\n // if the observer fires. Remember that this variable has\n // been closed over by the observer.\n oldClass = dasherizedClass;\n }\n\n // Extract just the property name from bindings like 'foo:bar'\n var parsedPath = Ember.View._parsePropertyPath(binding);\n addObserver(this, parsedPath.path, observer);\n }, this);\n },\n\n /**\n Iterates through the view's attribute bindings, sets up observers for each,\n then applies the current value of the attributes to the passed render buffer.\n\n @param {Ember.RenderBuffer} buffer\n */\n _applyAttributeBindings: function(buffer) {\n var attributeBindings = get(this, 'attributeBindings'),\n attributeValue, elem, type;\n\n if (!attributeBindings) { return; }\n\n a_forEach(attributeBindings, function(binding) {\n var split = binding.split(':'),\n property = split[0],\n attributeName = split[1] || property;\n\n // Create an observer to add/remove/change the attribute if the\n // JavaScript property changes.\n var observer = function() {\n elem = this.$();\n attributeValue = get(this, property);\n\n Ember.View.applyAttributeBindings(elem, attributeName, attributeValue);\n };\n\n addObserver(this, property, observer);\n\n // Determine the current value and add it to the render buffer\n // if necessary.\n attributeValue = get(this, property);\n Ember.View.applyAttributeBindings(buffer, attributeName, attributeValue);\n }, this);\n },\n\n /**\n @private\n\n Given a property name, returns a dasherized version of that\n property name if the property evaluates to a non-falsy value.\n\n For example, if the view has property `isUrgent` that evaluates to true,\n passing `isUrgent` to this method will return `\"is-urgent\"`.\n */\n _classStringForProperty: function(property) {\n var parsedPath = Ember.View._parsePropertyPath(property);\n var path = parsedPath.path;\n\n var val = get(this, path);\n if (val === undefined && Ember.isGlobalPath(path)) {\n val = get(window, path);\n }\n\n return Ember.View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName);\n },\n\n // ..........................................................\n // ELEMENT SUPPORT\n //\n\n /**\n Returns the current DOM element for the view.\n\n @field\n @type DOMElement\n */\n element: Ember.computed(function(key, value) {\n if (value !== undefined) {\n return this.invokeForState('setElement', value);\n } else {\n return this.invokeForState('getElement');\n }\n }).property('_parentView').cacheable(),\n\n /**\n Returns a jQuery object for this view's element. If you pass in a selector\n string, this method will return a jQuery object, using the current element\n as its buffer.\n\n For example, calling `view.$('li')` will return a jQuery object containing\n all of the `li` elements inside the DOM element of this view.\n\n @param {String} [selector] a jQuery-compatible selector string\n @returns {Ember.CoreQuery} the CoreQuery object for the DOM node\n */\n $: function(sel) {\n return this.invokeForState('$', sel);\n },\n\n /** @private */\n mutateChildViews: function(callback) {\n var childViews = this._childViews,\n idx = childViews.length,\n view;\n\n while(--idx >= 0) {\n view = childViews[idx];\n callback.call(this, view, idx);\n }\n\n return this;\n },\n\n /** @private */\n forEachChildView: function(callback) {\n var childViews = this._childViews;\n\n if (!childViews) { return this; }\n\n var len = childViews.length,\n view, idx;\n\n for(idx = 0; idx < len; idx++) {\n view = childViews[idx];\n callback.call(this, view);\n }\n\n return this;\n },\n\n /**\n Appends the view's element to the specified parent element.\n\n If the view does not have an HTML representation yet, `createElement()`\n will be called automatically.\n\n Note that this method just schedules the view to be appended; the DOM\n element will not be appended to the given element until all bindings have\n finished synchronizing.\n\n This is not typically a function that you will need to call directly\n when building your application. You might consider using Ember.ContainerView\n instead. If you do need to use appendTo, be sure that the target element you\n are providing is associated with an Ember.Application and does not have an\n ancestor element that is associated with an Ember view.\n\n @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object\n @returns {Ember.View} receiver\n */\n appendTo: function(target) {\n // Schedule the DOM element to be created and appended to the given\n // element after bindings have synchronized.\n this._insertElementLater(function() {\n Ember.assert(\"You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead.\", !Ember.$(target).is('.ember-view') && !Ember.$(target).parents().is('.ember-view'));\n this.$().appendTo(target);\n });\n\n return this;\n },\n\n /**\n Replaces the content of the specified parent element with this view's element.\n If the view does not have an HTML representation yet, `createElement()`\n will be called automatically.\n\n Note that this method just schedules the view to be appended; the DOM\n element will not be appended to the given element until all bindings have\n finished synchronizing\n\n @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object\n @returns {Ember.View} received\n */\n replaceIn: function(target) {\n Ember.assert(\"You cannot replace an existing Ember.View. Consider using Ember.ContainerView instead.\", !Ember.$(target).is('.ember-view') && !Ember.$(target).parents().is('.ember-view'));\n\n this._insertElementLater(function() {\n Ember.$(target).empty();\n this.$().appendTo(target);\n });\n\n return this;\n },\n\n /**\n @private\n\n Schedules a DOM operation to occur during the next render phase. This\n ensures that all bindings have finished synchronizing before the view is\n rendered.\n\n To use, pass a function that performs a DOM operation..\n\n Before your function is called, this view and all child views will receive\n the `willInsertElement` event. After your function is invoked, this view\n and all of its child views will receive the `didInsertElement` event.\n\n view._insertElementLater(function() {\n this.createElement();\n this.$().appendTo('body');\n });\n\n @param {Function} fn the function that inserts the element into the DOM\n */\n _insertElementLater: function(fn) {\n this._lastInsert = Ember.guidFor(fn);\n Ember.run.schedule('render', this, this.invokeForState, 'insertElement', fn);\n },\n\n /**\n Appends the view's element to the document body. If the view does\n not have an HTML representation yet, `createElement()` will be called\n automatically.\n\n Note that this method just schedules the view to be appended; the DOM\n element will not be appended to the document body until all bindings have\n finished synchronizing.\n\n @returns {Ember.View} receiver\n */\n append: function() {\n return this.appendTo(document.body);\n },\n\n /**\n Removes the view's element from the element to which it is attached.\n\n @returns {Ember.View} receiver\n */\n remove: function() {\n // What we should really do here is wait until the end of the run loop\n // to determine if the element has been re-appended to a different\n // element.\n // In the interim, we will just re-render if that happens. It is more\n // important than elements get garbage collected.\n this.destroyElement();\n this.invokeRecursively(function(view) {\n view.clearRenderedChildren();\n });\n },\n\n /**\n The ID to use when trying to locate the element in the DOM. If you do not\n set the elementId explicitly, then the view's GUID will be used instead.\n This ID must be set at the time the view is created.\n\n @type String\n @readOnly\n */\n elementId: Ember.computed(function(key, value) {\n return value !== undefined ? value : Ember.guidFor(this);\n }).cacheable(),\n\n /**\n @private\n\n TODO: Perhaps this should be removed from the production build somehow.\n */\n _elementIdDidChange: Ember.beforeObserver(function() {\n throw \"Changing a view's elementId after creation is not allowed.\";\n }, 'elementId'),\n\n /**\n Attempts to discover the element in the parent element. The default\n implementation looks for an element with an ID of elementId (or the view's\n guid if elementId is null). You can override this method to provide your\n own form of lookup. For example, if you want to discover your element\n using a CSS class name instead of an ID.\n\n @param {DOMElement} parentElement The parent's DOM element\n @returns {DOMElement} The discovered element\n */\n findElementInParentElement: function(parentElem) {\n var id = \"#\" + get(this, 'elementId');\n return Ember.$(id)[0] || Ember.$(id, parentElem)[0];\n },\n\n /**\n Creates a new renderBuffer with the passed tagName. You can override this\n method to provide further customization to the buffer if needed. Normally\n you will not need to call or override this method.\n\n @returns {Ember.RenderBuffer}\n */\n renderBuffer: function(tagName) {\n tagName = tagName || get(this, 'tagName');\n\n // Explicitly check for null or undefined, as tagName\n // may be an empty string, which would evaluate to false.\n if (tagName === null || tagName === undefined) {\n tagName = 'div';\n }\n\n return Ember.RenderBuffer(tagName);\n },\n\n /**\n Creates a DOM representation of the view and all of its\n child views by recursively calling the `render()` method.\n\n After the element has been created, `didInsertElement` will\n be called on this view and all of its child views.\n\n @returns {Ember.View} receiver\n */\n createElement: function() {\n if (get(this, 'element')) { return this; }\n\n var buffer = this.renderToBuffer();\n set(this, 'element', buffer.element());\n\n return this;\n },\n\n /**\n Called when a view is going to insert an element into the DOM.\n */\n willInsertElement: Ember.K,\n\n /**\n Called when the element of the view has been inserted into the DOM.\n Override this function to do any set up that requires an element in the\n document body.\n */\n didInsertElement: Ember.K,\n\n /**\n Called when the view is about to rerender, but before anything has\n been torn down. This is a good opportunity to tear down any manual\n observers you have installed based on the DOM state\n */\n willRerender: Ember.K,\n\n /**\n Run this callback on the current view and recursively on child views.\n\n @private\n */\n invokeRecursively: function(fn) {\n fn.call(this, this);\n\n this.forEachChildView(function(view) {\n view.invokeRecursively(fn);\n });\n },\n\n /**\n Invalidates the cache for a property on all child views.\n */\n invalidateRecursively: function(key) {\n this.forEachChildView(function(view) {\n view.propertyDidChange(key);\n });\n },\n\n /**\n @private\n\n Invokes the receiver's willInsertElement() method if it exists and then\n invokes the same on all child views.\n\n NOTE: In some cases this was called when the element existed. This no longer\n works so we let people know. We can remove this warning code later.\n */\n _notifyWillInsertElement: function() {\n this.invokeRecursively(function(view) {\n view.trigger('willInsertElement');\n });\n },\n\n /**\n @private\n\n Invokes the receiver's didInsertElement() method if it exists and then\n invokes the same on all child views.\n */\n _notifyDidInsertElement: function() {\n this.invokeRecursively(function(view) {\n view.trigger('didInsertElement');\n });\n },\n\n /**\n @private\n\n Invokes the receiver's willRerender() method if it exists and then\n invokes the same on all child views.\n */\n _notifyWillRerender: function() {\n this.invokeRecursively(function(view) {\n view.trigger('willRerender');\n });\n },\n\n /**\n Destroys any existing element along with the element for any child views\n as well. If the view does not currently have a element, then this method\n will do nothing.\n\n If you implement willDestroyElement() on your view, then this method will\n be invoked on your view before your element is destroyed to give you a\n chance to clean up any event handlers, etc.\n\n If you write a willDestroyElement() handler, you can assume that your\n didInsertElement() handler was called earlier for the same element.\n\n Normally you will not call or override this method yourself, but you may\n want to implement the above callbacks when it is run.\n\n @returns {Ember.View} receiver\n */\n destroyElement: function() {\n return this.invokeForState('destroyElement');\n },\n\n /**\n Called when the element of the view is going to be destroyed. Override\n this function to do any teardown that requires an element, like removing\n event listeners.\n */\n willDestroyElement: function() {},\n\n /**\n @private\n\n Invokes the `willDestroyElement` callback on the view and child views.\n */\n _notifyWillDestroyElement: function() {\n this.invokeRecursively(function(view) {\n view.trigger('willDestroyElement');\n });\n },\n\n /** @private (nodoc) */\n _elementWillChange: Ember.beforeObserver(function() {\n this.forEachChildView(function(view) {\n Ember.propertyWillChange(view, 'element');\n });\n }, 'element'),\n\n /**\n @private\n\n If this view's element changes, we need to invalidate the caches of our\n child views so that we do not retain references to DOM elements that are\n no longer needed.\n\n @observes element\n */\n _elementDidChange: Ember.observer(function() {\n this.forEachChildView(function(view) {\n Ember.propertyDidChange(view, 'element');\n });\n }, 'element'),\n\n /**\n Called when the parentView property has changed.\n\n @function\n */\n parentViewDidChange: Ember.K,\n\n /**\n @private\n\n Invoked by the view system when this view needs to produce an HTML\n representation. This method will create a new render buffer, if needed,\n then apply any default attributes, such as class names and visibility.\n Finally, the `render()` method is invoked, which is responsible for\n doing the bulk of the rendering.\n\n You should not need to override this method; instead, implement the\n `template` property, or if you need more control, override the `render`\n method.\n\n @param {Ember.RenderBuffer} buffer the render buffer. If no buffer is\n passed, a default buffer, using the current view's `tagName`, will\n be used.\n */\n renderToBuffer: function(parentBuffer, bufferOperation) {\n var buffer;\n\n Ember.run.sync();\n\n // Determine where in the parent buffer to start the new buffer.\n // By default, a new buffer will be appended to the parent buffer.\n // The buffer operation may be changed if the child views array is\n // mutated by Ember.ContainerView.\n bufferOperation = bufferOperation || 'begin';\n\n // If this is the top-most view, start a new buffer. Otherwise,\n // create a new buffer relative to the original using the\n // provided buffer operation (for example, `insertAfter` will\n // insert a new buffer after the \"parent buffer\").\n if (parentBuffer) {\n var tagName = get(this, 'tagName');\n if (tagName === null || tagName === undefined) {\n tagName = 'div';\n }\n\n buffer = parentBuffer[bufferOperation](tagName);\n } else {\n buffer = this.renderBuffer();\n }\n\n this.buffer = buffer;\n this.transitionTo('inBuffer', false);\n\n this.lengthBeforeRender = this._childViews.length;\n\n this.beforeRender(buffer);\n this.render(buffer);\n this.afterRender(buffer);\n\n this.lengthAfterRender = this._childViews.length;\n\n return buffer;\n },\n\n beforeRender: function(buffer) {\n this.applyAttributesToBuffer(buffer);\n },\n\n afterRender: Ember.K,\n\n /**\n @private\n */\n applyAttributesToBuffer: function(buffer) {\n // Creates observers for all registered class name and attribute bindings,\n // then adds them to the element.\n this._applyClassNameBindings();\n\n // Pass the render buffer so the method can apply attributes directly.\n // This isn't needed for class name bindings because they use the\n // existing classNames infrastructure.\n this._applyAttributeBindings(buffer);\n\n\n a_forEach(get(this, 'classNames'), function(name){ buffer.addClass(name); });\n buffer.id(get(this, 'elementId'));\n\n var role = get(this, 'ariaRole');\n if (role) {\n buffer.attr('role', role);\n }\n\n if (get(this, 'isVisible') === false) {\n buffer.style('display', 'none');\n }\n },\n\n // ..........................................................\n // STANDARD RENDER PROPERTIES\n //\n\n /**\n Tag name for the view's outer element. The tag name is only used when\n an element is first created. If you change the tagName for an element, you\n must destroy and recreate the view element.\n\n By default, the render buffer will use a `

` tag for views.\n\n @type String\n @default null\n */\n\n // We leave this null by default so we can tell the difference between\n // the default case and a user-specified tag.\n tagName: null,\n\n /**\n The WAI-ARIA role of the control represented by this view. For example, a\n button may have a role of type 'button', or a pane may have a role of\n type 'alertdialog'. This property is used by assistive software to help\n visually challenged users navigate rich web applications.\n\n The full list of valid WAI-ARIA roles is available at:\n http://www.w3.org/TR/wai-aria/roles#roles_categorization\n\n @type String\n @default null\n */\n ariaRole: null,\n\n /**\n Standard CSS class names to apply to the view's outer element. This\n property automatically inherits any class names defined by the view's\n superclasses as well.\n\n @type Array\n @default ['ember-view']\n */\n classNames: ['ember-view'],\n\n /**\n A list of properties of the view to apply as class names. If the property\n is a string value, the value of that string will be applied as a class\n name.\n\n // Applies the 'high' class to the view element\n Ember.View.create({\n classNameBindings: ['priority']\n priority: 'high'\n });\n\n If the value of the property is a Boolean, the name of that property is\n added as a dasherized class name.\n\n // Applies the 'is-urgent' class to the view element\n Ember.View.create({\n classNameBindings: ['isUrgent']\n isUrgent: true\n });\n\n If you would prefer to use a custom value instead of the dasherized\n property name, you can pass a binding like this:\n\n // Applies the 'urgent' class to the view element\n Ember.View.create({\n classNameBindings: ['isUrgent:urgent']\n isUrgent: true\n });\n\n This list of properties is inherited from the view's superclasses as well.\n\n @type Array\n @default []\n */\n classNameBindings: [],\n\n /**\n A list of properties of the view to apply as attributes. If the property is\n a string value, the value of that string will be applied as the attribute.\n\n // Applies the type attribute to the element\n // with the value \"button\", like

\n Ember.View.create({\n attributeBindings: ['type'],\n type: 'button'\n });\n\n If the value of the property is a Boolean, the name of that property is\n added as an attribute.\n\n // Renders something like

\n Ember.View.create({\n attributeBindings: ['enabled'],\n enabled: true\n });\n */\n attributeBindings: [],\n\n state: 'preRender',\n\n // .......................................................\n // CORE DISPLAY METHODS\n //\n\n /**\n @private\n\n Setup a view, but do not finish waking it up.\n - configure childViews\n - register the view with the global views hash, which is used for event\n dispatch\n */\n init: function() {\n this._super();\n\n // Register the view for event handling. This hash is used by\n // Ember.EventDispatcher to dispatch incoming events.\n if (!this.isVirtual) Ember.View.views[get(this, 'elementId')] = this;\n\n // setup child views. be sure to clone the child views array first\n this._childViews = this._childViews.slice();\n\n Ember.assert(\"Only arrays are allowed for 'classNameBindings'\", Ember.typeOf(this.classNameBindings) === 'array');\n this.classNameBindings = Ember.A(this.classNameBindings.slice());\n\n Ember.assert(\"Only arrays are allowed for 'classNames'\", Ember.typeOf(this.classNames) === 'array');\n this.classNames = Ember.A(this.classNames.slice());\n\n var viewController = get(this, 'viewController');\n if (viewController) {\n viewController = get(viewController);\n if (viewController) {\n set(viewController, 'view', this);\n }\n }\n },\n\n appendChild: function(view, options) {\n return this.invokeForState('appendChild', view, options);\n },\n\n /**\n Removes the child view from the parent view.\n\n @param {Ember.View} view\n @returns {Ember.View} receiver\n */\n removeChild: function(view) {\n // If we're destroying, the entire subtree will be\n // freed, and the DOM will be handled separately,\n // so no need to mess with childViews.\n if (this.isDestroying) { return; }\n\n // update parent node\n set(view, '_parentView', null);\n\n // remove view from childViews array.\n var childViews = this._childViews;\n\n Ember.EnumerableUtils.removeObject(childViews, view);\n\n this.propertyDidChange('childViews'); // HUH?! what happened to will change?\n\n return this;\n },\n\n /**\n Removes all children from the parentView.\n\n @returns {Ember.View} receiver\n */\n removeAllChildren: function() {\n return this.mutateChildViews(function(view) {\n this.removeChild(view);\n });\n },\n\n destroyAllChildren: function() {\n return this.mutateChildViews(function(view) {\n view.destroy();\n });\n },\n\n /**\n Removes the view from its parentView, if one is found. Otherwise\n does nothing.\n\n @returns {Ember.View} receiver\n */\n removeFromParent: function() {\n var parent = get(this, '_parentView');\n\n // Remove DOM element from parent\n this.remove();\n\n if (parent) { parent.removeChild(this); }\n return this;\n },\n\n /**\n You must call `destroy` on a view to destroy the view (and all of its\n child views). This will remove the view from any parent node, then make\n sure that the DOM element managed by the view can be released by the\n memory manager.\n */\n willDestroy: function() {\n // calling this._super() will nuke computed properties and observers,\n // so collect any information we need before calling super.\n var childViews = this._childViews,\n parent = get(this, '_parentView'),\n childLen;\n\n // destroy the element -- this will avoid each child view destroying\n // the element over and over again...\n if (!this.removedFromDOM) { this.destroyElement(); }\n\n // remove from non-virtual parent view if viewName was specified\n if (this.viewName) {\n var nonVirtualParentView = get(this, 'parentView');\n if (nonVirtualParentView) {\n set(nonVirtualParentView, this.viewName, null);\n }\n }\n\n // remove from parent if found. Don't call removeFromParent,\n // as removeFromParent will try to remove the element from\n // the DOM again.\n if (parent) { parent.removeChild(this); }\n\n this.state = 'destroyed';\n\n childLen = childViews.length;\n for (var i=childLen-1; i>=0; i--) {\n childViews[i].removedFromDOM = true;\n childViews[i].destroy();\n }\n\n // next remove view from global hash\n if (!this.isVirtual) delete Ember.View.views[get(this, 'elementId')];\n },\n\n /**\n Instantiates a view to be added to the childViews array during view\n initialization. You generally will not call this method directly unless\n you are overriding createChildViews(). Note that this method will\n automatically configure the correct settings on the new view instance to\n act as a child of the parent.\n\n @param {Class} viewClass\n @param {Hash} [attrs] Attributes to add\n @returns {Ember.View} new instance\n @test in createChildViews\n */\n createChildView: function(view, attrs) {\n if (Ember.View.detect(view)) {\n attrs = attrs || {};\n attrs._parentView = this;\n attrs.templateData = attrs.templateData || get(this, 'templateData');\n\n view = view.create(attrs);\n\n // don't set the property on a virtual view, as they are invisible to\n // consumers of the view API\n if (view.viewName) { set(get(this, 'concreteView'), view.viewName, view); }\n } else {\n Ember.assert('You must pass instance or subclass of View', view instanceof Ember.View);\n Ember.assert(\"You can only pass attributes when a class is provided\", !attrs);\n\n if (!get(view, 'templateData')) {\n set(view, 'templateData', get(this, 'templateData'));\n }\n\n set(view, '_parentView', this);\n }\n\n return view;\n },\n\n becameVisible: Ember.K,\n becameHidden: Ember.K,\n\n /**\n @private\n\n When the view's `isVisible` property changes, toggle the visibility\n element of the actual DOM element.\n */\n _isVisibleDidChange: Ember.observer(function() {\n var isVisible = get(this, 'isVisible');\n\n this.$().toggle(isVisible);\n\n if (this._isAncestorHidden()) { return; }\n\n if (isVisible) {\n this._notifyBecameVisible();\n } else {\n this._notifyBecameHidden();\n }\n }, 'isVisible'),\n\n _notifyBecameVisible: function() {\n this.trigger('becameVisible');\n\n this.forEachChildView(function(view) {\n var isVisible = get(view, 'isVisible');\n\n if (isVisible || isVisible === null) {\n view._notifyBecameVisible();\n }\n });\n },\n\n _notifyBecameHidden: function() {\n this.trigger('becameHidden');\n this.forEachChildView(function(view) {\n var isVisible = get(view, 'isVisible');\n\n if (isVisible || isVisible === null) {\n view._notifyBecameHidden();\n }\n });\n },\n\n _isAncestorHidden: function() {\n var parent = get(this, 'parentView');\n\n while (parent) {\n if (get(parent, 'isVisible') === false) { return true; }\n\n parent = get(parent, 'parentView');\n }\n\n return false;\n },\n\n clearBuffer: function() {\n this.invokeRecursively(function(view) {\n this.buffer = null;\n });\n },\n\n transitionTo: function(state, children) {\n this.state = state;\n\n if (children !== false) {\n this.forEachChildView(function(view) {\n view.transitionTo(state);\n });\n }\n },\n\n /**\n @private\n\n Override the default event firing from Ember.Evented to\n also call methods with the given name.\n */\n trigger: function(name) {\n this._super.apply(this, arguments);\n var method = this[name];\n if (method) {\n var args = [], i, l;\n for (i = 1, l = arguments.length; i < l; i++) {\n args.push(arguments[i]);\n }\n return method.apply(this, args);\n }\n },\n\n has: function(name) {\n return Ember.typeOf(this[name]) === 'function' || this._super(name);\n },\n\n // .......................................................\n // EVENT HANDLING\n //\n\n /**\n @private\n\n Handle events from `Ember.EventDispatcher`\n */\n handleEvent: function(eventName, evt) {\n return this.invokeForState('handleEvent', eventName, evt);\n }\n\n});\n\n/**\n Describe how the specified actions should behave in the various\n states that a view can exist in. Possible states:\n\n * preRender: when a view is first instantiated, and after its\n element was destroyed, it is in the preRender state\n * inBuffer: once a view has been rendered, but before it has\n been inserted into the DOM, it is in the inBuffer state\n * inDOM: once a view has been inserted into the DOM it is in\n the inDOM state. A view spends the vast majority of its\n existence in this state.\n * destroyed: once a view has been destroyed (using the destroy\n method), it is in this state. No further actions can be invoked\n on a destroyed view.\n*/\n\n // in the destroyed state, everything is illegal\n\n // before rendering has begun, all legal manipulations are noops.\n\n // inside the buffer, legal manipulations are done on the buffer\n\n // once the view has been inserted into the DOM, legal manipulations\n // are done on the DOM element.\n\n/** @private */\nvar DOMManager = {\n prepend: function(view, childView) {\n childView._insertElementLater(function() {\n var element = view.$();\n element.prepend(childView.$());\n });\n },\n\n after: function(view, nextView) {\n nextView._insertElementLater(function() {\n var element = view.$();\n element.after(nextView.$());\n });\n },\n\n replace: function(view) {\n var element = get(view, 'element');\n\n set(view, 'element', null);\n\n view._insertElementLater(function() {\n Ember.$(element).replaceWith(get(view, 'element'));\n });\n },\n\n remove: function(view) {\n var elem = get(view, 'element');\n\n set(view, 'element', null);\n view._lastInsert = null;\n\n Ember.$(elem).remove();\n },\n\n empty: function(view) {\n view.$().empty();\n }\n};\n\nEmber.View.reopen({\n states: Ember.View.states,\n domManager: DOMManager\n});\n\nEmber.View.reopenClass({\n\n /**\n @private\n\n Parse a path and return an object which holds the parsed properties.\n\n For example a path like \"content.isEnabled:enabled:disabled\" wil return the\n following object:\n\n {\n path: \"content.isEnabled\",\n className: \"enabled\",\n falsyClassName: \"disabled\",\n classNames: \":enabled:disabled\"\n }\n\n */\n _parsePropertyPath: function(path) {\n var split = path.split(/:/),\n propertyPath = split[0],\n classNames = \"\",\n className,\n falsyClassName;\n\n // check if the property is defined as prop:class or prop:trueClass:falseClass\n if (split.length > 1) {\n className = split[1];\n if (split.length === 3) { falsyClassName = split[2]; }\n\n classNames = ':' + className;\n if (falsyClassName) { classNames += \":\" + falsyClassName; }\n }\n\n return {\n path: propertyPath,\n classNames: classNames,\n className: (className === '') ? undefined : className,\n falsyClassName: falsyClassName\n };\n },\n\n /**\n @private\n\n Get the class name for a given value, based on the path, optional className\n and optional falsyClassName.\n\n - if the value is truthy and a className is defined, the className is returned\n - if the value is true, the dasherized last part of the supplied path is returned\n - if the value is false and a falsyClassName is supplied, the falsyClassName is returned\n - if the value is truthy, the value is returned\n - if none of the above rules apply, null is returned\n\n */\n _classStringForValue: function(path, val, className, falsyClassName) {\n // If the value is truthy and we're using the colon syntax,\n // we should return the className directly\n if (!!val && className) {\n return className;\n\n // If value is a Boolean and true, return the dasherized property\n // name.\n } else if (val === true) {\n // catch syntax like isEnabled::not-enabled\n if (val === true && !className && falsyClassName) { return null; }\n\n // Normalize property path to be suitable for use\n // as a class name. For exaple, content.foo.barBaz\n // becomes bar-baz.\n var parts = path.split('.');\n return Ember.String.dasherize(parts[parts.length-1]);\n\n // If the value is false and a falsyClassName is specified, return it\n } else if (val === false && falsyClassName) {\n return falsyClassName;\n\n // If the value is not false, undefined, or null, return the current\n // value of the property.\n } else if (val !== false && val !== undefined && val !== null) {\n return val;\n\n // Nothing to display. Return null so that the old class is removed\n // but no new class is added.\n } else {\n return null;\n }\n }\n});\n\n// Create a global view hash.\nEmber.View.views = {};\n\n// If someone overrides the child views computed property when\n// defining their class, we want to be able to process the user's\n// supplied childViews and then restore the original computed property\n// at view initialization time. This happens in Ember.ContainerView's init\n// method.\nEmber.View.childViewsProperty = childViewsProperty;\n\nEmber.View.applyAttributeBindings = function(elem, name, value) {\n var type = Ember.typeOf(value);\n var currentValue = elem.attr(name);\n\n // if this changes, also change the logic in ember-handlebars/lib/helpers/binding.js\n if ((type === 'string' || (type === 'number' && !isNaN(value))) && value !== currentValue) {\n elem.attr(name, value);\n } else if (value && type === 'boolean') {\n elem.attr(name, name);\n } else if (!value) {\n elem.removeAttr(name);\n }\n};\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set;\n\nEmber.View.states = {\n _default: {\n // appendChild is only legal while rendering the buffer.\n appendChild: function() {\n throw \"You can't use appendChild outside of the rendering process\";\n },\n\n $: function() {\n return Ember.$();\n },\n\n getElement: function() {\n return null;\n },\n\n // Handle events from `Ember.EventDispatcher`\n handleEvent: function() {\n return true; // continue event propagation\n },\n\n destroyElement: function(view) {\n set(view, 'element', null);\n view._lastInsert = null;\n return view;\n }\n }\n};\n\nEmber.View.reopen({\n states: Ember.View.states\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nEmber.View.states.preRender = {\n parentState: Ember.View.states._default,\n\n // a view leaves the preRender state once its element has been\n // created (createElement).\n insertElement: function(view, fn) {\n if (view._lastInsert !== Ember.guidFor(fn)){\n return;\n }\n view.createElement();\n view._notifyWillInsertElement();\n // after createElement, the view will be in the hasElement state.\n fn.call(view);\n view.transitionTo('inDOM');\n view._notifyDidInsertElement();\n },\n\n empty: Ember.K,\n\n setElement: function(view, value) {\n if (value !== null) {\n view.transitionTo('hasElement');\n }\n return value;\n }\n};\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set, meta = Ember.meta;\n\nEmber.View.states.inBuffer = {\n parentState: Ember.View.states._default,\n\n $: function(view, sel) {\n // if we don't have an element yet, someone calling this.$() is\n // trying to update an element that isn't in the DOM. Instead,\n // rerender the view to allow the render method to reflect the\n // changes.\n view.rerender();\n return Ember.$();\n },\n\n // when a view is rendered in a buffer, rerendering it simply\n // replaces the existing buffer with a new one\n rerender: function(view) {\n Ember.deprecate(\"Something you did caused a view to re-render after it rendered but before it was inserted into the DOM. Because this is avoidable and the cause of significant performance issues in applications, this behavior is deprecated. If you want to use the debugger to find out what caused this, you can set ENV.RAISE_ON_DEPRECATION to true.\");\n\n view._notifyWillRerender();\n\n view.clearRenderedChildren();\n view.renderToBuffer(view.buffer, 'replaceWith');\n },\n\n // when a view is rendered in a buffer, appending a child\n // view will render that view and append the resulting\n // buffer into its buffer.\n appendChild: function(view, childView, options) {\n var buffer = view.buffer;\n\n childView = this.createChildView(childView, options);\n view._childViews.push(childView);\n\n childView.renderToBuffer(buffer);\n\n view.propertyDidChange('childViews');\n\n return childView;\n },\n\n // when a view is rendered in a buffer, destroying the\n // element will simply destroy the buffer and put the\n // state back into the preRender state.\n destroyElement: function(view) {\n view.clearBuffer();\n view._notifyWillDestroyElement();\n view.transitionTo('preRender');\n\n return view;\n },\n\n empty: function() {\n Ember.assert(\"Emptying a view in the inBuffer state is not allowed and should not happen under normal circumstances. Most likely there is a bug in your application. This may be due to excessive property change notifications.\");\n },\n\n // It should be impossible for a rendered view to be scheduled for\n // insertion.\n insertElement: function() {\n throw \"You can't insert an element that has already been rendered\";\n },\n\n setElement: function(view, value) {\n if (value === null) {\n view.transitionTo('preRender');\n } else {\n view.clearBuffer();\n view.transitionTo('hasElement');\n }\n\n return value;\n }\n};\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set, meta = Ember.meta;\n\nEmber.View.states.hasElement = {\n parentState: Ember.View.states._default,\n\n $: function(view, sel) {\n var elem = get(view, 'element');\n return sel ? Ember.$(sel, elem) : Ember.$(elem);\n },\n\n getElement: function(view) {\n var parent = get(view, 'parentView');\n if (parent) { parent = get(parent, 'element'); }\n if (parent) { return view.findElementInParentElement(parent); }\n return Ember.$(\"#\" + get(view, 'elementId'))[0];\n },\n\n setElement: function(view, value) {\n if (value === null) {\n view.transitionTo('preRender');\n } else {\n throw \"You cannot set an element to a non-null value when the element is already in the DOM.\";\n }\n\n return value;\n },\n\n // once the view has been inserted into the DOM, rerendering is\n // deferred to allow bindings to synchronize.\n rerender: function(view) {\n view._notifyWillRerender();\n\n view.clearRenderedChildren();\n\n view.domManager.replace(view);\n return view;\n },\n\n // once the view is already in the DOM, destroying it removes it\n // from the DOM, nukes its element, and puts it back into the\n // preRender state if inDOM.\n\n destroyElement: function(view) {\n view._notifyWillDestroyElement();\n view.domManager.remove(view);\n return view;\n },\n\n empty: function(view) {\n var _childViews = view._childViews, len, idx;\n if (_childViews) {\n len = _childViews.length;\n for (idx = 0; idx < len; idx++) {\n _childViews[idx]._notifyWillDestroyElement();\n }\n }\n view.domManager.empty(view);\n },\n\n // Handle events from `Ember.EventDispatcher`\n handleEvent: function(view, eventName, evt) {\n if (view.has(eventName)) {\n // Handler should be able to re-dispatch events, so we don't\n // preventDefault or stopPropagation.\n return view.trigger(eventName, evt);\n } else {\n return true; // continue event propagation\n }\n }\n};\n\nEmber.View.states.inDOM = {\n parentState: Ember.View.states.hasElement,\n\n insertElement: function(view, fn) {\n if (view._lastInsert !== Ember.guidFor(fn)){\n return;\n }\n throw \"You can't insert an element into the DOM that has already been inserted\";\n }\n};\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar destroyedError = \"You can't call %@ on a destroyed view\", fmt = Ember.String.fmt;\n\nEmber.View.states.destroyed = {\n parentState: Ember.View.states._default,\n\n appendChild: function() {\n throw fmt(destroyedError, ['appendChild']);\n },\n rerender: function() {\n throw fmt(destroyedError, ['rerender']);\n },\n destroyElement: function() {\n throw fmt(destroyedError, ['destroyElement']);\n },\n empty: function() {\n throw fmt(destroyedError, ['empty']);\n },\n\n setElement: function() {\n throw fmt(destroyedError, [\"set('element', ...)\"]);\n },\n\n // Since element insertion is scheduled, don't do anything if\n // the view has been destroyed between scheduling and execution\n insertElement: Ember.K\n};\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set, meta = Ember.meta;\nvar forEach = Ember.EnumerableUtils.forEach;\n\nvar childViewsProperty = Ember.computed(function() {\n return get(this, '_childViews');\n}).property('_childViews').cacheable();\n\n/**\n @class\n\n A `ContainerView` is an `Ember.View` subclass that allows for manual or programatic\n management of a view's `childViews` array that will correctly update the `ContainerView`\n instance's rendered DOM representation.\n\n ## Setting Initial Child Views\n The initial array of child views can be set in one of two ways. You can provide\n a `childViews` property at creation time that contains instance of `Ember.View`:\n\n\n aContainer = Ember.ContainerView.create({\n childViews: [Ember.View.create(), Ember.View.create()]\n })\n\n You can also provide a list of property names whose values are instances of `Ember.View`:\n\n aContainer = Ember.ContainerView.create({\n childViews: ['aView', 'bView', 'cView'],\n aView: Ember.View.create(),\n bView: Ember.View.create()\n cView: Ember.View.create()\n })\n\n The two strategies can be combined:\n\n aContainer = Ember.ContainerView.create({\n childViews: ['aView', Ember.View.create()],\n aView: Ember.View.create()\n })\n\n Each child view's rendering will be inserted into the container's rendered HTML in the same\n order as its position in the `childViews` property.\n\n ## Adding and Removing Child Views\n The views in a container's `childViews` array should be added and removed by manipulating\n the `childViews` property directly.\n\n To remove a view pass that view into a `removeObject` call on the container's `childViews` property.\n\n Given an empty `` the following code\n\n aContainer = Ember.ContainerView.create({\n classNames: ['the-container'],\n childViews: ['aView', 'bView'],\n aView: Ember.View.create({\n template: Ember.Handlebars.compile(\"A\")\n }),\n bView: Ember.View.create({\n template: Ember.Handlebars.compile(\"B\")\n })\n })\n\n aContainer.appendTo('body')\n\n Results in the HTML\n\n

\n\n Removing a view\n\n aContainer.get('childViews') // [aContainer.aView, aContainer.bView]\n aContainer.get('childViews').removeObject(aContainer.get('bView'))\n aContainer.get('childViews') // [aContainer.aView]\n\n Will result in the following HTML\n\n

\n\n\n Similarly, adding a child view is accomplished by adding `Ember.View` instances to the\n container's `childViews` property.\n\n Given an empty `` the following code\n\n aContainer = Ember.ContainerView.create({\n classNames: ['the-container'],\n childViews: ['aView', 'bView'],\n aView: Ember.View.create({\n template: Ember.Handlebars.compile(\"A\")\n }),\n bView: Ember.View.create({\n template: Ember.Handlebars.compile(\"B\")\n })\n })\n\n aContainer.appendTo('body')\n\n Results in the HTML\n\n

\n\n Adding a view\n\n AnotherViewClass = Ember.View.extend({\n template: Ember.Handlebars.compile(\"Another view\")\n })\n\n aContainer.get('childViews') // [aContainer.aView, aContainer.bView]\n aContainer.get('childViews').pushObject(AnotherViewClass.create())\n aContainer.get('childViews') // [aContainer.aView, aContainer.bView, ]\n\n Will result in the following HTML\n\n

Another view

\n\n\n Direct manipulation of childViews presence or absence in the DOM via calls to\n `remove` or `removeFromParent` or calls to a container's `removeChild` may not behave\n correctly.\n\n Calling `remove()` on a child view will remove the view's HTML, but it will remain as part of its\n container's `childView`s property.\n\n Calling `removeChild()` on the container will remove the passed view instance from the container's\n `childView`s but keep its HTML within the container's rendered view.\n\n Calling `removeFromParent()` behaves as expected but should be avoided in favor of direct\n manipulation of a container's `childViews` property.\n\n aContainer = Ember.ContainerView.create({\n classNames: ['the-container'],\n childViews: ['aView', 'bView'],\n aView: Ember.View.create({\n template: Ember.Handlebars.compile(\"A\")\n }),\n bView: Ember.View.create({\n template: Ember.Handlebars.compile(\"B\")\n })\n })\n\n aContainer.appendTo('body')\n\n Results in the HTML\n\n

\n\n Calling `aContainer.get('aView').removeFromParent()` will result in the following HTML\n\n

\n\n And the `Ember.View` instance stored in `aContainer.aView` will be removed from `aContainer`'s\n `childViews` array.\n\n ## Templates and Layout\n A `template`, `templateName`, `defaultTemplate`, `layout`, `layoutName` or `defaultLayout`\n property on a container view will not result in the template or layout being rendered.\n The HTML contents of a `Ember.ContainerView`'s DOM representation will only be the rendered HTML\n of its child views.\n\n ## Binding a View to Display\n\n If you would like to display a single view in your ContainerView, you can set its `currentView`\n property. When the `currentView` property is set to a view instance, it will be added to the\n ContainerView's `childViews` array. If the `currentView` property is later changed to a\n different view, the new view will replace the old view. If `currentView` is set to `null`, the\n last `currentView` will be removed.\n\n This functionality is useful for cases where you want to bind the display of a ContainerView to\n a controller or state manager. For example, you can bind the `currentView` of a container to\n a controller like this:\n\n // Controller\n App.appController = Ember.Object.create({\n view: Ember.View.create({\n templateName: 'person_template'\n })\n });\n\n // Handlebars template\n {{view Ember.ContainerView currentViewBinding=\"App.appController.view\"}}\n\n @extends Ember.View\n*/\n\nEmber.ContainerView = Ember.View.extend({\n\n init: function() {\n this._super();\n\n var childViews = get(this, 'childViews');\n Ember.defineProperty(this, 'childViews', childViewsProperty);\n\n var _childViews = this._childViews;\n\n forEach(childViews, function(viewName, idx) {\n var view;\n\n if ('string' === typeof viewName) {\n view = get(this, viewName);\n view = this.createChildView(view);\n set(this, viewName, view);\n } else {\n view = this.createChildView(viewName);\n }\n\n _childViews[idx] = view;\n }, this);\n\n var currentView = get(this, 'currentView');\n if (currentView) _childViews.push(this.createChildView(currentView));\n\n // Make the _childViews array observable\n Ember.A(_childViews);\n\n // Sets up an array observer on the child views array. This\n // observer will detect when child views are added or removed\n // and update the DOM to reflect the mutation.\n get(this, 'childViews').addArrayObserver(this, {\n willChange: 'childViewsWillChange',\n didChange: 'childViewsDidChange'\n });\n },\n\n /**\n Instructs each child view to render to the passed render buffer.\n\n @param {Ember.RenderBuffer} buffer the buffer to render to\n @private\n */\n render: function(buffer) {\n this.forEachChildView(function(view) {\n view.renderToBuffer(buffer);\n });\n },\n\n /**\n When the container view is destroyed, tear down the child views\n array observer.\n\n @private\n */\n willDestroy: function() {\n get(this, 'childViews').removeArrayObserver(this, {\n willChange: 'childViewsWillChange',\n didChange: 'childViewsDidChange'\n });\n\n this._super();\n },\n\n /**\n When a child view is removed, destroy its element so that\n it is removed from the DOM.\n\n The array observer that triggers this action is set up in the\n `renderToBuffer` method.\n\n @private\n @param {Ember.Array} views the child views array before mutation\n @param {Number} start the start position of the mutation\n @param {Number} removed the number of child views removed\n **/\n childViewsWillChange: function(views, start, removed) {\n if (removed === 0) { return; }\n\n var changedViews = views.slice(start, start+removed);\n this.initializeViews(changedViews, null, null);\n\n this.invokeForState('childViewsWillChange', views, start, removed);\n },\n\n /**\n When a child view is added, make sure the DOM gets updated appropriately.\n\n If the view has already rendered an element, we tell the child view to\n create an element and insert it into the DOM. If the enclosing container view\n has already written to a buffer, but not yet converted that buffer into an\n element, we insert the string representation of the child into the appropriate\n place in the buffer.\n\n @private\n @param {Ember.Array} views the array of child views afte the mutation has occurred\n @param {Number} start the start position of the mutation\n @param {Number} removed the number of child views removed\n @param {Number} the number of child views added\n */\n childViewsDidChange: function(views, start, removed, added) {\n var len = get(views, 'length');\n\n // No new child views were added; bail out.\n if (added === 0) return;\n\n var changedViews = views.slice(start, start+added);\n this.initializeViews(changedViews, this, get(this, 'templateData'));\n\n // Let the current state handle the changes\n this.invokeForState('childViewsDidChange', views, start, added);\n },\n\n initializeViews: function(views, parentView, templateData) {\n forEach(views, function(view) {\n set(view, '_parentView', parentView);\n\n if (!get(view, 'templateData')) {\n set(view, 'templateData', templateData);\n }\n });\n },\n\n /**\n Schedules a child view to be inserted into the DOM after bindings have\n finished syncing for this run loop.\n\n @param {Ember.View} view the child view to insert\n @param {Ember.View} prev the child view after which the specified view should\n be inserted\n @private\n */\n _scheduleInsertion: function(view, prev) {\n if (prev) {\n prev.domManager.after(prev, view);\n } else {\n this.domManager.prepend(this, view);\n }\n },\n\n currentView: null,\n\n _currentViewWillChange: Ember.beforeObserver(function() {\n var childViews = get(this, 'childViews'),\n currentView = get(this, 'currentView');\n\n if (currentView) {\n childViews.removeObject(currentView);\n }\n }, 'currentView'),\n\n _currentViewDidChange: Ember.observer(function() {\n var childViews = get(this, 'childViews'),\n currentView = get(this, 'currentView');\n\n if (currentView) {\n childViews.pushObject(currentView);\n }\n }, 'currentView')\n});\n\n// Ember.ContainerView extends the default view states to provide different\n// behavior for childViewsWillChange and childViewsDidChange.\nEmber.ContainerView.states = {\n parent: Ember.View.states,\n\n inBuffer: {\n childViewsDidChange: function(parentView, views, start, added) {\n var buffer = parentView.buffer,\n startWith, prev, prevBuffer, view;\n\n // Determine where to begin inserting the child view(s) in the\n // render buffer.\n if (start === 0) {\n // If views were inserted at the beginning, prepend the first\n // view to the render buffer, then begin inserting any\n // additional views at the beginning.\n view = views[start];\n startWith = start + 1;\n view.renderToBuffer(buffer, 'prepend');\n } else {\n // Otherwise, just insert them at the same place as the child\n // views mutation.\n view = views[start - 1];\n startWith = start;\n }\n\n for (var i=startWith; i` and the following code:\n\n\n someItemsView = Ember.CollectionView.create({\n classNames: ['a-collection'],\n content: ['A','B','C'],\n itemViewClass: Ember.View.extend({\n template: Ember.Handlebars.compile(\"the letter: {{view.content}}\")\n })\n })\n\n someItemsView.appendTo('body')\n\n Will result in the following HTML structure\n\n

the letter: A

the letter: B

the letter: C

\n\n ## Automatic matching of parent/child tagNames\n\n Setting the `tagName` property of a `CollectionView` to any of \n \"ul\", \"ol\", \"table\", \"thead\", \"tbody\", \"tfoot\", \"tr\", or \"select\" will result\n in the item views receiving an appropriately matched `tagName` property.\n\n\n Given an empty `` and the following code:\n\n anUndorderedListView = Ember.CollectionView.create({\n tagName: 'ul',\n content: ['A','B','C'],\n itemViewClass: Ember.View.extend({\n template: Ember.Handlebars.compile(\"the letter: {{view.content}}\")\n })\n })\n\n anUndorderedListView.appendTo('body')\n\n Will result in the following HTML structure\n\n

the letter: A
the letter: B
the letter: C

\n\n Additional tagName pairs can be provided by adding to `Ember.CollectionView.CONTAINER_MAP `\n\n Ember.CollectionView.CONTAINER_MAP['article'] = 'section'\n\n\n ## Empty View\n You can provide an `Ember.View` subclass to the `Ember.CollectionView` instance as its\n `emptyView` property. If the `content` property of a `CollectionView` is set to `null`\n or an empty array, an instance of this view will be the `CollectionView`s only child.\n\n aListWithNothing = Ember.CollectionView.create({\n classNames: ['nothing']\n content: null,\n emptyView: Ember.View.extend({\n template: Ember.Handlebars.compile(\"The collection is empty\")\n })\n })\n\n aListWithNothing.appendTo('body')\n\n Will result in the following HTML structure\n\n

\n The collection is empty\n

\n\n ## Adding and Removing items\n The `childViews` property of a `CollectionView` should not be directly manipulated. Instead,\n add, remove, replace items from its `content` property. This will trigger\n appropriate changes to its rendered HTML.\n\n ## Use in templates via the `{{collection}}` Ember.Handlebars helper\n Ember.Handlebars provides a helper specifically for adding `CollectionView`s to templates.\n See `Ember.Handlebars.collection` for more details\n\n @since Ember 0.9\n @extends Ember.ContainerView\n*/\nEmber.CollectionView = Ember.ContainerView.extend(\n/** @scope Ember.CollectionView.prototype */ {\n\n /**\n A list of items to be displayed by the Ember.CollectionView.\n\n @type Ember.Array\n @default null\n */\n content: null,\n\n /**\n @private\n\n This provides metadata about what kind of empty view class this\n collection would like if it is being instantiated from another\n system (like Handlebars)\n */\n emptyViewClass: Ember.View,\n\n /**\n An optional view to display if content is set to an empty array.\n\n @type Ember.View\n @default null\n */\n emptyView: null,\n\n /**\n @type Ember.View\n @default Ember.View\n */\n itemViewClass: Ember.View,\n\n /** @private */\n init: function() {\n var ret = this._super();\n this._contentDidChange();\n return ret;\n },\n\n _contentWillChange: Ember.beforeObserver(function() {\n var content = this.get('content');\n\n if (content) { content.removeArrayObserver(this); }\n var len = content ? get(content, 'length') : 0;\n this.arrayWillChange(content, 0, len);\n }, 'content'),\n\n /**\n @private\n\n Check to make sure that the content has changed, and if so,\n update the children directly. This is always scheduled\n asynchronously, to allow the element to be created before\n bindings have synchronized and vice versa.\n */\n _contentDidChange: Ember.observer(function() {\n var content = get(this, 'content');\n\n if (content) {\n Ember.assert(fmt(\"an Ember.CollectionView's content must implement Ember.Array. You passed %@\", [content]), Ember.Array.detect(content));\n content.addArrayObserver(this);\n }\n\n var len = content ? get(content, 'length') : 0;\n this.arrayDidChange(content, 0, null, len);\n }, 'content'),\n\n willDestroy: function() {\n var content = get(this, 'content');\n if (content) { content.removeArrayObserver(this); }\n\n this._super();\n },\n\n arrayWillChange: function(content, start, removedCount) {\n // If the contents were empty before and this template collection has an\n // empty view remove it now.\n var emptyView = get(this, 'emptyView');\n if (emptyView && emptyView instanceof Ember.View) {\n emptyView.removeFromParent();\n }\n\n // Loop through child views that correspond with the removed items.\n // Note that we loop from the end of the array to the beginning because\n // we are mutating it as we go.\n var childViews = get(this, 'childViews'), childView, idx, len;\n\n len = get(childViews, 'length');\n\n var removingAll = removedCount === len;\n\n if (removingAll) {\n this.invokeForState('empty');\n }\n\n for (idx = start + removedCount - 1; idx >= start; idx--) {\n childView = childViews[idx];\n if (removingAll) { childView.removedFromDOM = true; }\n childView.destroy();\n }\n },\n\n /**\n Called when a mutation to the underlying content array occurs.\n\n This method will replay that mutation against the views that compose the\n Ember.CollectionView, ensuring that the view reflects the model.\n\n This array observer is added in contentDidChange.\n\n @param {Array} addedObjects\n the objects that were added to the content\n\n @param {Array} removedObjects\n the objects that were removed from the content\n\n @param {Number} changeIndex\n the index at which the changes occurred\n */\n arrayDidChange: function(content, start, removed, added) {\n var itemViewClass = get(this, 'itemViewClass'),\n childViews = get(this, 'childViews'),\n addedViews = [], view, item, idx, len, itemTagName;\n\n if ('string' === typeof itemViewClass) {\n itemViewClass = get(itemViewClass);\n }\n\n Ember.assert(fmt(\"itemViewClass must be a subclass of Ember.View, not %@\", [itemViewClass]), Ember.View.detect(itemViewClass));\n\n len = content ? get(content, 'length') : 0;\n if (len) {\n for (idx = start; idx < start+added; idx++) {\n item = content.objectAt(idx);\n\n view = this.createChildView(itemViewClass, {\n content: item,\n contentIndex: idx\n });\n\n addedViews.push(view);\n }\n } else {\n var emptyView = get(this, 'emptyView');\n if (!emptyView) { return; }\n\n emptyView = this.createChildView(emptyView);\n addedViews.push(emptyView);\n set(this, 'emptyView', emptyView);\n }\n childViews.replace(start, 0, addedViews);\n },\n\n createChildView: function(view, attrs) {\n view = this._super(view, attrs);\n\n var itemTagName = get(view, 'tagName');\n var tagName = (itemTagName === null || itemTagName === undefined) ? Ember.CollectionView.CONTAINER_MAP[get(this, 'tagName')] : itemTagName;\n\n set(view, 'tagName', tagName);\n\n return view;\n }\n});\n\n/**\n @static\n\n A map of parent tags to their default child tags. You can add\n additional parent tags if you want collection views that use\n a particular parent tag to default to a child tag.\n\n @type Hash\n @constant\n*/\nEmber.CollectionView.CONTAINER_MAP = {\n ul: 'li',\n ol: 'li',\n table: 'tr',\n thead: 'tr',\n tbody: 'tr',\n tfoot: 'tr',\n tr: 'td',\n select: 'option'\n};\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember - JavaScript Application Framework\n// Copyright: ©2006-2011 Strobe Inc. and contributors.\n// Portions ©2008-2011 Apple Inc. All rights reserved.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n/*globals jQuery*/\n\n})();\n\n(function() {\nvar get = Ember.get, set = Ember.set;\n\n/**\n @class\n\n @extends Ember.Object\n*/\nEmber.State = Ember.Object.extend(Ember.Evented,\n/** @scope Ember.State.prototype */{\n isState: true,\n\n /**\n A reference to the parent state.\n\n @type Ember.State\n */\n parentState: null,\n start: null,\n\n /**\n The name of this state.\n\n @type String\n */\n name: null,\n\n /**\n The full path to this state.\n\n @type String\n @readOnly\n */\n path: Ember.computed(function() {\n var parentPath = get(this, 'parentState.path'),\n path = get(this, 'name');\n\n if (parentPath) {\n path = parentPath + '.' + path;\n }\n\n return path;\n }).property().cacheable(),\n\n /**\n @private\n\n Override the default event firing from Ember.Evented to\n also call methods with the given name.\n */\n trigger: function(name) {\n if (this[name]) {\n this[name].apply(this, [].slice.call(arguments, 1));\n }\n this._super.apply(this, arguments);\n },\n\n /** @private */\n init: function() {\n var states = get(this, 'states'), foundStates;\n set(this, 'childStates', Ember.A());\n set(this, 'eventTransitions', get(this, 'eventTransitions') || {});\n\n var name, value, transitionTarget;\n\n // As a convenience, loop over the properties\n // of this state and look for any that are other\n // Ember.State instances or classes, and move them\n // to the `states` hash. This avoids having to\n // create an explicit separate hash.\n\n if (!states) {\n states = {};\n\n for (name in this) {\n if (name === \"constructor\") { continue; }\n\n if (value = this[name]) {\n if (transitionTarget = value.transitionTarget) {\n this.eventTransitions[name] = transitionTarget;\n }\n\n this.setupChild(states, name, value);\n }\n }\n\n set(this, 'states', states);\n } else {\n for (name in states) {\n this.setupChild(states, name, states[name]);\n }\n }\n\n set(this, 'pathsCache', {});\n set(this, 'pathsCacheNoContext', {});\n },\n\n /** @private */\n setupChild: function(states, name, value) {\n if (!value) { return false; }\n\n if (value.isState) {\n set(value, 'name', name);\n } else if (Ember.State.detect(value)) {\n value = value.create({\n name: name\n });\n }\n\n if (value.isState) {\n set(value, 'parentState', this);\n get(this, 'childStates').pushObject(value);\n states[name] = value;\n }\n },\n\n lookupEventTransition: function(name) {\n var path, state = this;\n\n while(state && !path) {\n path = state.eventTransitions[name];\n state = state.get('parentState');\n }\n\n return path;\n },\n\n /**\n A Boolean value indicating whether the state is a leaf state\n in the state hierarchy. This is false if the state has child\n states; otherwise it is true.\n\n @type Boolean\n */\n isLeaf: Ember.computed(function() {\n return !get(this, 'childStates').length;\n }).cacheable(),\n\n /**\n A boolean value indicating whether the state takes a context.\n By default we assume all states take contexts.\n */\n hasContext: true,\n\n /**\n This is the default transition event.\n\n @event\n @param {Ember.StateManager} manager\n @param context\n @see Ember.StateManager#transitionEvent\n */\n setup: Ember.K,\n\n /**\n This event fires when the state is entered.\n\n @event\n @param {Ember.StateManager} manager\n */\n enter: Ember.K,\n\n /**\n This event fires when the state is exited.\n\n @event\n @param {Ember.StateManager} manager\n */\n exit: Ember.K\n});\n\nvar Event = Ember.$ && Ember.$.Event;\n\nEmber.State.reopenClass(\n/** @scope Ember.State */{\n\n /**\n @static\n\n Creates an action function for transitioning to the named state while preserving context.\n\n The following example StateManagers are equivalent:\n\n aManager = Ember.StateManager.create({\n stateOne: Ember.State.create({\n changeToStateTwo: Ember.State.transitionTo('stateTwo')\n }),\n stateTwo: Ember.State.create({})\n })\n\n bManager = Ember.StateManager.create({\n stateOne: Ember.State.create({\n changeToStateTwo: function(manager, context){\n manager.transitionTo('stateTwo', context)\n }\n }),\n stateTwo: Ember.State.create({})\n })\n\n @param {String} target\n */\n transitionTo: function(target) {\n var event = function(stateManager, context) {\n if (Event && context instanceof Event) {\n context = context.context;\n }\n\n stateManager.transitionTo(target, context);\n };\n\n event.transitionTarget = target;\n\n return event;\n }\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;\nvar arrayForEach = Ember.ArrayPolyfills.forEach;\n/**\n @class\n\n StateManager is part of Ember's implementation of a finite state machine. A StateManager\n instance manages a number of properties that are instances of `Ember.State`,\n tracks the current active state, and triggers callbacks when states have changed.\n\n ## Defining States\n\n The states of StateManager can be declared in one of two ways. First, you can define\n a `states` property that contains all the states:\n\n managerA = Ember.StateManager.create({\n states: {\n stateOne: Ember.State.create(),\n stateTwo: Ember.State.create()\n }\n })\n\n managerA.get('states')\n // {\n // stateOne: Ember.State.create(),\n // stateTwo: Ember.State.create()\n // }\n\n You can also add instances of `Ember.State` (or an `Ember.State` subclass) directly as properties\n of a StateManager. These states will be collected into the `states` property for you.\n\n managerA = Ember.StateManager.create({\n stateOne: Ember.State.create(),\n stateTwo: Ember.State.create()\n })\n\n managerA.get('states')\n // {\n // stateOne: Ember.State.create(),\n // stateTwo: Ember.State.create()\n // }\n\n ## The Initial State\n When created a StateManager instance will immediately enter into the state\n defined as its `start` property or the state referenced by name in its\n `initialState` property:\n\n managerA = Ember.StateManager.create({\n start: Ember.State.create({})\n })\n\n managerA.get('currentState.name') // 'start'\n\n managerB = Ember.StateManager.create({\n initialState: 'beginHere',\n beginHere: Ember.State.create({})\n })\n\n managerB.get('currentState.name') // 'beginHere'\n\n Because it is a property you may also provide a computed function if you wish to derive\n an `initialState` programmatically:\n\n managerC = Ember.StateManager.create({\n initialState: function(){\n if (someLogic) {\n return 'active';\n } else {\n return 'passive';\n }\n }.property(),\n active: Ember.State.create({}),\n passive: Ember.State.create({})\n })\n\n ## Moving Between States\n A StateManager can have any number of Ember.State objects as properties\n and can have a single one of these states as its current state.\n\n Calling `transitionTo` transitions between states:\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown',\n poweredDown: Ember.State.create({}),\n poweredUp: Ember.State.create({})\n })\n\n robotManager.get('currentState.name') // 'poweredDown'\n robotManager.transitionTo('poweredUp')\n robotManager.get('currentState.name') // 'poweredUp'\n\n Before transitioning into a new state the existing `currentState` will have its\n `exit` method called with the StateManager instance as its first argument and\n an object representing the transition as its second argument.\n\n After transitioning into a new state the new `currentState` will have its\n `enter` method called with the StateManager instance as its first argument and\n an object representing the transition as its second argument.\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown',\n poweredDown: Ember.State.create({\n exit: function(stateManager){\n console.log(\"exiting the poweredDown state\")\n }\n }),\n poweredUp: Ember.State.create({\n enter: function(stateManager){\n console.log(\"entering the poweredUp state. Destroy all humans.\")\n }\n })\n })\n\n robotManager.get('currentState.name') // 'poweredDown'\n robotManager.transitionTo('poweredUp')\n // will log\n // 'exiting the poweredDown state'\n // 'entering the poweredUp state. Destroy all humans.'\n\n\n Once a StateManager is already in a state, subsequent attempts to enter that state will\n not trigger enter or exit method calls. Attempts to transition into a state that the\n manager does not have will result in no changes in the StateManager's current state:\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown',\n poweredDown: Ember.State.create({\n exit: function(stateManager){\n console.log(\"exiting the poweredDown state\")\n }\n }),\n poweredUp: Ember.State.create({\n enter: function(stateManager){\n console.log(\"entering the poweredUp state. Destroy all humans.\")\n }\n })\n })\n\n robotManager.get('currentState.name') // 'poweredDown'\n robotManager.transitionTo('poweredUp')\n // will log\n // 'exiting the poweredDown state'\n // 'entering the poweredUp state. Destroy all humans.'\n robotManager.transitionTo('poweredUp') // no logging, no state change\n\n robotManager.transitionTo('someUnknownState') // silently fails\n robotManager.get('currentState.name') // 'poweredUp'\n\n\n Each state property may itself contain properties that are instances of Ember.State.\n The StateManager can transition to specific sub-states in a series of transitionTo method calls or\n via a single transitionTo with the full path to the specific state. The StateManager will also\n keep track of the full path to its currentState\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown',\n poweredDown: Ember.State.create({\n charging: Ember.State.create(),\n charged: Ember.State.create()\n }),\n poweredUp: Ember.State.create({\n mobile: Ember.State.create(),\n stationary: Ember.State.create()\n })\n })\n\n robotManager.get('currentState.name') // 'poweredDown'\n\n robotManager.transitionTo('poweredUp')\n robotManager.get('currentState.name') // 'poweredUp'\n\n robotManager.transitionTo('mobile')\n robotManager.get('currentState.name') // 'mobile'\n\n // transition via a state path\n robotManager.transitionTo('poweredDown.charging')\n robotManager.get('currentState.name') // 'charging'\n\n robotManager.get('currentState.path') // 'poweredDown.charging'\n\n Enter transition methods will be called for each state and nested child state in their\n hierarchical order. Exit methods will be called for each state and its nested states in\n reverse hierarchical order.\n\n Exit transitions for a parent state are not called when entering into one of its child states,\n only when transitioning to a new section of possible states in the hierarchy.\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown',\n poweredDown: Ember.State.create({\n enter: function(){},\n exit: function(){\n console.log(\"exited poweredDown state\")\n },\n charging: Ember.State.create({\n enter: function(){},\n exit: function(){}\n }),\n charged: Ember.State.create({\n enter: function(){\n console.log(\"entered charged state\")\n },\n exit: function(){\n console.log(\"exited charged state\")\n }\n })\n }),\n poweredUp: Ember.State.create({\n enter: function(){\n console.log(\"entered poweredUp state\")\n },\n exit: function(){},\n mobile: Ember.State.create({\n enter: function(){\n console.log(\"entered mobile state\")\n },\n exit: function(){}\n }),\n stationary: Ember.State.create({\n enter: function(){},\n exit: function(){}\n })\n })\n })\n\n\n robotManager.get('currentState.path') // 'poweredDown'\n robotManager.transitionTo('charged')\n // logs 'entered charged state'\n // but does *not* log 'exited poweredDown state'\n robotManager.get('currentState.name') // 'charged\n\n robotManager.transitionTo('poweredUp.mobile')\n // logs\n // 'exited charged state'\n // 'exited poweredDown state'\n // 'entered poweredUp state'\n // 'entered mobile state'\n\n During development you can set a StateManager's `enableLogging` property to `true` to\n receive console messages of state transitions.\n\n robotManager = Ember.StateManager.create({\n enableLogging: true\n })\n\n ## Managing currentState with Actions\n To control which transitions between states are possible for a given state, StateManager\n can receive and route action messages to its states via the `send` method. Calling to `send` with\n an action name will begin searching for a method with the same name starting at the current state\n and moving up through the parent states in a state hierarchy until an appropriate method is found\n or the StateManager instance itself is reached.\n\n If an appropriately named method is found it will be called with the state manager as the first\n argument and an optional `context` object as the second argument.\n\n managerA = Ember.StateManager.create({\n initialState: 'stateOne.substateOne.subsubstateOne',\n stateOne: Ember.State.create({\n substateOne: Ember.State.create({\n anAction: function(manager, context){\n console.log(\"an action was called\")\n },\n subsubstateOne: Ember.State.create({})\n })\n })\n })\n\n managerA.get('currentState.name') // 'subsubstateOne'\n managerA.send('anAction')\n // 'stateOne.substateOne.subsubstateOne' has no anAction method\n // so the 'anAction' method of 'stateOne.substateOne' is called\n // and logs \"an action was called\"\n // with managerA as the first argument\n // and no second argument\n\n someObject = {}\n managerA.send('anAction', someObject)\n // the 'anAction' method of 'stateOne.substateOne' is called again\n // with managerA as the first argument and\n // someObject as the second argument.\n\n\n If the StateManager attempts to send an action but does not find an appropriately named\n method in the current state or while moving upwards through the state hierarchy\n it will throw a new Ember.Error. Action detection only moves upwards through the state hierarchy\n from the current state. It does not search in other portions of the hierarchy.\n\n managerB = Ember.StateManager.create({\n initialState: 'stateOne.substateOne.subsubstateOne',\n stateOne: Ember.State.create({\n substateOne: Ember.State.create({\n subsubstateOne: Ember.State.create({})\n })\n }),\n stateTwo: Ember.State.create({\n anAction: function(manager, context){\n // will not be called below because it is\n // not a parent of the current state\n }\n })\n })\n\n managerB.get('currentState.name') // 'subsubstateOne'\n managerB.send('anAction')\n // Error: could not\n // respond to event anAction in state stateOne.substateOne.subsubstateOne.\n\n Inside of an action method the given state should delegate `transitionTo` calls on its\n StateManager.\n\n robotManager = Ember.StateManager.create({\n initialState: 'poweredDown.charging',\n poweredDown: Ember.State.create({\n charging: Ember.State.create({\n chargeComplete: function(manager, context){\n manager.transitionTo('charged')\n }\n }),\n charged: Ember.State.create({\n boot: function(manager, context){\n manager.transitionTo('poweredUp')\n }\n })\n }),\n poweredUp: Ember.State.create({\n beginExtermination: function(manager, context){\n manager.transitionTo('rampaging')\n },\n rampaging: Ember.State.create()\n })\n })\n\n robotManager.get('currentState.name') // 'charging'\n robotManager.send('boot') // throws error, no boot action\n // in current hierarchy\n robotManager.get('currentState.name') // remains 'charging'\n\n robotManager.send('beginExtermination') // throws error, no beginExtermination\n // action in current hierarchy\n robotManager.get('currentState.name') // remains 'charging'\n\n robotManager.send('chargeComplete')\n robotManager.get('currentState.name') // 'charged'\n\n robotManager.send('boot')\n robotManager.get('currentState.name') // 'poweredUp'\n\n robotManager.send('beginExtermination', allHumans)\n robotManager.get('currentState.name') // 'rampaging'\n\n Transition actions can also be created using the `transitionTo` method of the Ember.State class. The\n following example StateManagers are equivalent: \n \n aManager = Ember.StateManager.create({\n stateOne: Ember.State.create({\n changeToStateTwo: Ember.State.transitionTo('stateTwo')\n }),\n stateTwo: Ember.State.create({})\n })\n \n bManager = Ember.StateManager.create({\n stateOne: Ember.State.create({\n changeToStateTwo: function(manager, context){\n manager.transitionTo('stateTwo', context)\n }\n }),\n stateTwo: Ember.State.create({})\n })\n**/\nEmber.StateManager = Ember.State.extend(\n/** @scope Ember.StateManager.prototype */ {\n\n /**\n When creating a new statemanager, look for a default state to transition\n into. This state can either be named `start`, or can be specified using the\n `initialState` property.\n */\n init: function() {\n this._super();\n\n set(this, 'stateMeta', Ember.Map.create());\n\n var initialState = get(this, 'initialState');\n\n if (!initialState && get(this, 'states.start')) {\n initialState = 'start';\n }\n\n if (initialState) {\n this.transitionTo(initialState);\n Ember.assert('Failed to transition to initial state \"' + initialState + '\"', !!get(this, 'currentState'));\n }\n },\n\n stateMetaFor: function(state) {\n var meta = get(this, 'stateMeta'),\n stateMeta = meta.get(state);\n\n if (!stateMeta) {\n stateMeta = {};\n meta.set(state, stateMeta);\n }\n\n return stateMeta;\n },\n\n setStateMeta: function(state, key, value) {\n return set(this.stateMetaFor(state), key, value);\n },\n\n getStateMeta: function(state, key) {\n return get(this.stateMetaFor(state), key);\n },\n\n /**\n The current state from among the manager's possible states. This property should\n not be set directly. Use `transitionTo` to move between states by name.\n\n @type Ember.State\n @readOnly\n */\n currentState: null,\n\n /**\n The name of transitionEvent that this stateManager will dispatch\n\n @property {String}\n @default 'setup'\n */\n transitionEvent: 'setup',\n\n /**\n If set to true, `errorOnUnhandledEvents` will cause an exception to be\n raised if you attempt to send an event to a state manager that is not\n handled by the current state or any of its parent states.\n\n @type Boolean\n @default true\n */\n errorOnUnhandledEvent: true,\n \n send: function(event, context) {\n Ember.assert('Cannot send event \"' + event + '\" while currentState is ' + get(this, 'currentState'), get(this, 'currentState'));\n return this.sendRecursively(event, get(this, 'currentState'), context);\n },\n\n sendRecursively: function(event, currentState, context) {\n var log = this.enableLogging,\n action = currentState[event];\n\n // Test to see if the action is a method that\n // can be invoked. Don't blindly check just for\n // existence, because it is possible the state\n // manager has a child state of the given name,\n // and we should still raise an exception in that\n // case.\n if (typeof action === 'function') {\n if (log) { Ember.Logger.log(fmt(\"STATEMANAGER: Sending event '%@' to state %@.\", [event, get(currentState, 'path')])); }\n return action.call(currentState, this, context);\n } else {\n var parentState = get(currentState, 'parentState');\n if (parentState) {\n return this.sendRecursively(event, parentState, context);\n } else if (get(this, 'errorOnUnhandledEvent')) {\n throw new Ember.Error(this.toString() + \" could not respond to event \" + event + \" in state \" + get(this, 'currentState.path') + \".\");\n }\n }\n },\n\n /**\n Finds a state by its state path.\n\n Example:\n\n manager = Ember.StateManager.create({\n root: Ember.State.create({\n dashboard: Ember.State.create()\n })\n });\n\n manager.getStateByPath(manager, \"root.dashboard\")\n\n // returns the dashboard state\n\n @param {Ember.State} root the state to start searching from\n @param {String} path the state path to follow\n @returns {Ember.State} the state at the end of the path\n */\n getStateByPath: function(root, path) {\n var parts = path.split('.'),\n state = root;\n\n for (var i=0, l=parts.length; i 0 && enterStates[0] === exitStates[0]) {\n resolveState = enterStates.shift();\n exitStates.shift();\n }\n\n currentState.pathsCache[path] = {\n exitStates: exitStates,\n enterStates: enterStates,\n resolveState: resolveState\n };\n }\n\n // Don't modify the cached versions\n enterStates = enterStates.slice();\n exitStates = exitStates.slice();\n\n stateIdx = enterStates.length-1;\n while (contexts.length > 0) {\n if (stateIdx >= 0) {\n state = enterStates[stateIdx--];\n } else {\n state = enterStates[0] ? get(enterStates[0], 'parentState') : resolveState;\n if (!state) { throw \"Cannot match all contexts to states\"; }\n enterStates.unshift(state);\n exitStates.unshift(state);\n }\n\n useContext = context && get(state, 'hasContext');\n matchedContexts.unshift(useContext ? contexts.pop() : null);\n }\n\n state = enterStates[enterStates.length - 1] || resolveState;\n while(true) {\n initialState = get(state, 'initialState') || 'start';\n state = get(state, 'states.'+initialState);\n if (!state) { break; }\n enterStates.push(state);\n matchedContexts.push(undefined);\n }\n\n while (enterStates.length > 0) {\n if (enterStates[0] !== exitStates[0]) { break; }\n\n if (enterStates.length === matchedContexts.length) {\n if (this.getStateMeta(enterStates[0], 'context') !== matchedContexts[0]) { break; }\n matchedContexts.shift();\n }\n\n resolveState = enterStates.shift();\n exitStates.shift();\n }\n }\n\n this.enterState(exitStates, enterStates, enterStates[enterStates.length-1] || resolveState);\n this.triggerSetupContext(enterStates, matchedContexts);\n },\n\n triggerSetupContext: function(enterStates, contexts) {\n var offset = enterStates.length - contexts.length;\n Ember.assert(\"More contexts provided than states\", offset >= 0);\n\n arrayForEach.call(enterStates, function(state, idx) {\n state.trigger(get(this, 'transitionEvent'), this, contexts[idx-offset]);\n }, this);\n },\n\n getState: function(name) {\n var state = get(this, name),\n parentState = get(this, 'parentState');\n\n if (state) {\n return state;\n } else if (parentState) {\n return parentState.getState(name);\n }\n },\n\n enterState: function(exitStates, enterStates, state) {\n var log = this.enableLogging,\n stateManager = this;\n\n exitStates = exitStates.slice(0).reverse();\n arrayForEach.call(exitStates, function(state) {\n state.trigger('exit', stateManager);\n });\n\n arrayForEach.call(enterStates, function(state) {\n if (log) { Ember.Logger.log(\"STATEMANAGER: Entering \" + get(state, 'path')); }\n state.trigger('enter', stateManager);\n });\n\n set(this, 'currentState', state);\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Statecharts\n// Copyright: ©2011 Living Social Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n(function() {\nvar get = Ember.get;\n\nEmber._ResolvedState = Ember.Object.extend({\n manager: null,\n state: null,\n match: null,\n\n object: Ember.computed(function(key, value) {\n if (arguments.length === 2) {\n this._object = value;\n return value;\n } else {\n if (this._object) {\n return this._object;\n } else {\n var state = get(this, 'state'),\n match = get(this, 'match'),\n manager = get(this, 'manager');\n return state.deserialize(manager, match.hash);\n }\n }\n }).property(),\n\n hasPromise: Ember.computed(function() {\n return Ember.canInvoke(get(this, 'object'), 'then');\n }).property('object'),\n\n promise: Ember.computed(function() {\n var object = get(this, 'object');\n if (Ember.canInvoke(object, 'then')) {\n return object;\n } else {\n return {\n then: function(success) { success(object); }\n };\n }\n }).property('object'),\n\n transition: function() {\n var manager = get(this, 'manager'),\n path = get(this, 'state.path'),\n object = get(this, 'object');\n manager.transitionTo(path, object);\n }\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get;\n\n// The Ember Routable mixin assumes the existance of a simple\n// routing shim that supports the following three behaviors:\n//\n// * .getURL() - this is called when the page loads\n// * .setURL(newURL) - this is called from within the state\n// manager when the state changes to a routable state\n// * .onURLChange(callback) - this happens when the user presses\n// the back or forward button\n\nvar paramForClass = function(classObject) {\n var className = classObject.toString(),\n parts = className.split(\".\"),\n last = parts[parts.length - 1];\n\n return Ember.String.underscore(last) + \"_id\";\n};\n\nvar merge = function(original, hash) {\n for (var prop in hash) {\n if (!hash.hasOwnProperty(prop)) { continue; }\n if (original.hasOwnProperty(prop)) { continue; }\n\n original[prop] = hash[prop];\n }\n};\n\nEmber.Routable = Ember.Mixin.create({\n init: function() {\n var redirection;\n this.on('connectOutlets', this, this.stashContext);\n\n if (redirection = get(this, 'redirectsTo')) {\n Ember.assert(\"You cannot use `redirectsTo` if you already have a `connectOutlets` method\", this.connectOutlets === Ember.K);\n\n this.connectOutlets = function(router) {\n router.transitionTo(redirection);\n };\n }\n\n // normalize empty route to '/'\n var route = get(this, 'route');\n if (route === '') {\n route = '/';\n }\n\n this._super();\n\n Ember.assert(\"You cannot use `redirectsTo` on a state that has child states\", !redirection || (!!redirection && !!get(this, 'isLeaf')));\n },\n\n /**\n @private\n\n Whenever a routable state is entered, the context it was entered with\n is stashed so that we can regenerate the state's `absoluteURL` on\n demand.\n */\n stashContext: function(manager, context) {\n var serialized = this.serialize(manager, context);\n Ember.assert('serialize must return a hash', !serialized || typeof serialized === 'object');\n\n manager.setStateMeta(this, 'context', context);\n manager.setStateMeta(this, 'serialized', serialized);\n\n if (get(this, 'isRoutable') && !get(manager, 'isRouting')) {\n this.updateRoute(manager, get(manager, 'location'));\n }\n },\n\n /**\n @private\n\n Whenever a routable state is entered, the router's location object\n is notified to set the URL to the current absolute path.\n\n In general, this will update the browser's URL.\n */\n updateRoute: function(manager, location) {\n if (get(this, 'isLeafRoute')) {\n var path = this.absoluteRoute(manager);\n location.setURL(path);\n }\n },\n\n /**\n @private\n\n Get the absolute route for the current state and a given\n hash.\n\n This method is private, as it expects a serialized hash,\n not the original context object.\n */\n absoluteRoute: function(manager, hash) {\n var parentState = get(this, 'parentState');\n var path = '', generated;\n\n // If the parent state is routable, use its current path\n // as this route's prefix.\n if (get(parentState, 'isRoutable')) {\n path = parentState.absoluteRoute(manager, hash);\n }\n\n var matcher = get(this, 'routeMatcher'),\n serialized = manager.getStateMeta(this, 'serialized');\n\n // merge the existing serialized object in with the passed\n // in hash.\n hash = hash || {};\n merge(hash, serialized);\n\n generated = matcher && matcher.generate(hash);\n\n if (generated) {\n path = path + '/' + generated;\n }\n\n return path;\n },\n\n /**\n @private\n\n At the moment, a state is routable if it has a string `route`\n property. This heuristic may change.\n */\n isRoutable: Ember.computed(function() {\n return typeof get(this, 'route') === 'string';\n }).cacheable(),\n\n /**\n @private\n\n Determine if this is the last routeable state\n */\n isLeafRoute: Ember.computed(function() {\n if (get(this, 'isLeaf')) { return true; }\n return !get(this, 'childStates').findProperty('isRoutable');\n }).cacheable(),\n\n /**\n @private\n\n A _RouteMatcher object generated from the current route's `route`\n string property.\n */\n routeMatcher: Ember.computed(function() {\n var route = get(this, 'route');\n if (route) {\n return Ember._RouteMatcher.create({ route: route });\n }\n }).cacheable(),\n\n /**\n @private\n\n Check whether the route has dynamic segments and therefore takes\n a context.\n */\n hasContext: Ember.computed(function() {\n var routeMatcher = get(this, 'routeMatcher');\n if (routeMatcher) {\n return routeMatcher.identifiers.length > 0;\n }\n }).cacheable(),\n\n /**\n @private\n\n The model class associated with the current state. This property\n uses the `modelType` property, in order to allow it to be\n specified as a String.\n */\n modelClass: Ember.computed(function() {\n var modelType = get(this, 'modelType');\n\n if (typeof modelType === 'string') {\n return Ember.get(window, modelType);\n } else {\n return modelType;\n }\n }).cacheable(),\n\n /**\n @private\n\n Get the model class for the state. The heuristic is:\n\n * The state must have a single dynamic segment\n * The dynamic segment must end in `_id`\n * A dynamic segment like `blog_post_id` is converted into `BlogPost`\n * The name is then looked up on the passed in namespace\n\n The process of initializing an application with a router will\n pass the application's namespace into the router, which will be\n used here.\n */\n modelClassFor: function(namespace) {\n var modelClass, routeMatcher, identifiers, match, className;\n\n // if an explicit modelType was specified, use that\n if (modelClass = get(this, 'modelClass')) { return modelClass; }\n\n // if the router has no lookup namespace, we won't be able to guess\n // the modelType\n if (!namespace) { return; }\n\n // make sure this state is actually a routable state\n routeMatcher = get(this, 'routeMatcher');\n if (!routeMatcher) { return; }\n\n // only guess modelType for states with a single dynamic segment\n // (no more, no fewer)\n identifiers = routeMatcher.identifiers;\n if (identifiers.length !== 2) { return; }\n\n // extract the `_id` from the end of the dynamic segment; if the\n // dynamic segment does not end in `_id`, we can't guess the\n // modelType\n match = identifiers[1].match(/^(.*)_id$/);\n if (!match) { return; }\n\n // convert the underscored type into a class form and look it up\n // on the router's namespace\n className = Ember.String.classify(match[1]);\n return get(namespace, className);\n },\n\n /**\n The default method that takes a `params` object and converts\n it into an object.\n\n By default, a params hash that looks like `{ post_id: 1 }`\n will be looked up as `namespace.Post.find(1)`. This is\n designed to work seamlessly with Ember Data, but will work\n fine with any class that has a `find` method.\n */\n deserialize: function(manager, params) {\n var modelClass, routeMatcher, param;\n\n if (modelClass = this.modelClassFor(get(manager, 'namespace'))) {\n Ember.assert(\"Expected \"+modelClass.toString()+\" to implement `find` for use in '\"+this.get('path')+\"' `deserialize`. Please implement the `find` method or overwrite `deserialize`.\", modelClass.find);\n return modelClass.find(params[paramForClass(modelClass)]);\n }\n\n return params;\n },\n\n /**\n The default method that takes an object and converts it into\n a params hash.\n\n By default, if there is a single dynamic segment named\n `blog_post_id` and the object is a `BlogPost` with an\n `id` of `12`, the serialize method will produce:\n\n { blog_post_id: 12 }\n */\n serialize: function(manager, context) {\n var modelClass, routeMatcher, namespace, param, id;\n\n if (Ember.empty(context)) { return ''; }\n\n if (modelClass = this.modelClassFor(get(manager, 'namespace'))) {\n param = paramForClass(modelClass);\n id = get(context, 'id');\n context = {};\n context[param] = id;\n }\n\n return context;\n },\n\n /**\n @private\n */\n resolvePath: function(manager, path) {\n if (get(this, 'isLeafRoute')) { return Ember.A(); }\n\n var childStates = get(this, 'childStates'), match;\n\n childStates = Ember.A(childStates.filterProperty('isRoutable'));\n\n childStates = childStates.sort(function(a, b) {\n var aDynamicSegments = get(a, 'routeMatcher.identifiers.length'),\n bDynamicSegments = get(b, 'routeMatcher.identifiers.length'),\n aRoute = get(a, 'route'),\n bRoute = get(b, 'route');\n\n if (aRoute.indexOf(bRoute) === 0) {\n return -1;\n } else if (bRoute.indexOf(aRoute) === 0) {\n return 1;\n }\n\n if (aDynamicSegments !== bDynamicSegments) {\n return aDynamicSegments - bDynamicSegments;\n }\n\n return get(b, 'route.length') - get(a, 'route.length');\n });\n\n var state = childStates.find(function(state) {\n var matcher = get(state, 'routeMatcher');\n if (match = matcher.match(path)) { return true; }\n });\n\n Ember.assert(\"Could not find state for path \" + path, !!state);\n\n var resolvedState = Ember._ResolvedState.create({\n manager: manager,\n state: state,\n match: match\n });\n\n var states = state.resolvePath(manager, match.remaining);\n\n return Ember.A([resolvedState]).pushObjects(states);\n },\n\n /**\n @private\n\n Once `unroute` has finished unwinding, `routePath` will be called\n with the remainder of the route.\n\n For example, if you were in the /posts/1/comments state, and you\n moved into the /posts/2/comments state, `routePath` will be called\n on the state whose path is `/posts` with the path `/2/comments`.\n */\n routePath: function(manager, path) {\n if (get(this, 'isLeafRoute')) { return; }\n\n var resolvedStates = this.resolvePath(manager, path),\n hasPromises = resolvedStates.some(function(s) { return get(s, 'hasPromise'); });\n\n function runTransition() {\n resolvedStates.forEach(function(rs) { rs.transition(); });\n }\n\n if (hasPromises) {\n manager.transitionTo('loading');\n\n Ember.assert('Loading state should be the child of a route', Ember.Routable.detect(get(manager, 'currentState.parentState')));\n Ember.assert('Loading state should not be a route', !Ember.Routable.detect(get(manager, 'currentState')));\n\n manager.handleStatePromises(resolvedStates, runTransition);\n } else {\n runTransition();\n }\n },\n\n /**\n @private\n\n When you move to a new route by pressing the back\n or forward button, this method is called first.\n\n Its job is to move the state manager into a parent\n state of the state it will eventually move into.\n */\n unroutePath: function(router, path) {\n // If we're at the root state, we're done\n if (get(this, 'parentState') === router) {\n return;\n }\n\n path = path.replace(/^(?=[^\\/])/, \"/\");\n var absolutePath = this.absoluteRoute(router);\n\n var route = get(this, 'route');\n\n // If the current path is empty, move up one state,\n // because the index ('/') state must be a leaf node.\n if (route !== '/') {\n // If the current path is a prefix of the path we're trying\n // to go to, we're done.\n var index = path.indexOf(absolutePath),\n next = path.charAt(absolutePath.length);\n\n if (index === 0 && (next === \"/\" || next === \"\")) {\n return;\n }\n }\n\n // Transition to the parent and call unroute again.\n var parentPath = get(get(this, 'parentState'), 'path');\n router.transitionTo(parentPath);\n router.send('unroutePath', path);\n },\n\n /**\n The `connectOutlets` event will be triggered once a\n state has been entered. It will be called with the\n route's context.\n */\n connectOutlets: Ember.K,\n\n /**\n The `navigateAway` event will be triggered when the\n URL changes due to the back/forward button\n */\n navigateAway: Ember.K\n});\n\n})();\n\n\n\n(function() {\n/**\n @class\n*/\nEmber.Route = Ember.State.extend(Ember.Routable);\n\n})();\n\n\n\n(function() {\nvar escapeForRegex = function(text) {\n return text.replace(/[\\-\\[\\]{}()*+?.,\\\\\\^\\$|#\\s]/g, \"\\\\$&\");\n};\n\nEmber._RouteMatcher = Ember.Object.extend({\n state: null,\n\n init: function() {\n var route = this.route,\n identifiers = [],\n count = 1,\n escaped;\n\n // Strip off leading slash if present\n if (route.charAt(0) === '/') {\n route = this.route = route.substr(1);\n }\n\n escaped = escapeForRegex(route);\n\n var regex = escaped.replace(/:([a-z_]+)(?=$|\\/)/gi, function(match, id) {\n identifiers[count++] = id;\n return \"([^/]+)\";\n });\n\n this.identifiers = identifiers;\n this.regex = new RegExp(\"^/?\" + regex);\n },\n\n match: function(path) {\n var match = path.match(this.regex);\n\n if (match) {\n var identifiers = this.identifiers,\n hash = {};\n\n for (var i=1, l=identifiers.length; i 0 ? hash : null\n };\n }\n },\n\n generate: function(hash) {\n var identifiers = this.identifiers, route = this.route, id;\n for (var i=1, l=identifiers.length; i\n

\n \n\n Will delegate `click` events on the rendered `h1` to the application's router instance. In this case the\n `anActionOnTheRouter` method of the state at 'root.aRoute' will be called with the view's controller\n as the context argument. This context will be passed to the `connectOutlets` as its second argument.\n\n Different `context` can be supplied from within the `{{action}}` helper, allowing specific context passing\n between application states:\n\n \n\n See Handlebars.helpers.action for additional usage examples.\n\n\n ## Changing View Hierarchy in Response To State Change\n Changes in application state that change the URL should be accompanied by associated changes in view\n hierarchy. This can be accomplished by calling 'connectOutlet' on the injected controller singletons from\n within the 'connectOutlets' event of an Ember.Route:\n\n App = Ember.Application.create({\n OneController: Ember.ObjectController.extend(),\n OneView: Ember.View.extend(),\n\n AnotherController: Ember.ObjectController.extend(),\n AnotherView: Ember.View.extend(),\n\n Router: Ember.Router.extend({\n root: Ember.Route.extend({\n aRoute: Ember.Route.extend({\n route: '/',\n connectOutlets: function(router, context) {\n router.get('oneController').connectOutlet('another');\n },\n })\n })\n })\n });\n App.initialize();\n\n\n This will detect the '{{outlet}}' portion of `oneController`'s view (an instance of `App.OneView`) and\n fill it with a rendered instance of `App.AnotherView` whose `context` will be the single instance of\n `App.AnotherController` stored on the router in the `anotherController` property.\n\n For more information about Outlets, see `Ember.Handlebars.helpers.outlet`. For additional information on\n the `connectOutlet` method, see `Ember.Controller.connectOutlet`. For more information on\n controller injections, see `Ember.Application#initialize()`. For additional information about view context,\n see `Ember.View`.\n\n @extends Ember.StateManager\n*/\nEmber.Router = Ember.StateManager.extend(\n/** @scope Ember.Router.prototype */ {\n\n /**\n @property {String}\n @default 'root'\n */\n initialState: 'root',\n\n /**\n The `Ember.Location` implementation to be used to manage the application\n URL state. The following values are supported:\n\n * 'hash': Uses URL fragment identifiers (like #/blog/1) for routing.\n * 'none': Does not read or set the browser URL, but still allows for\n routing to happen. Useful for testing.\n\n @type String\n @default 'hash'\n */\n location: 'hash',\n\n /**\n This is only used when a history location is used so that applications that\n don't live at the root of the domain can append paths to their root.\n\n @type String\n @default '/'\n */\n\n rootURL: '/',\n\n /**\n On router, transitionEvent should be called connectOutlets\n\n @property {String}\n @default 'connectOutlets'\n */\n transitionEvent: 'connectOutlets',\n\n transitionTo: function() {\n this.abortRoutingPromises();\n this._super.apply(this, arguments);\n },\n\n route: function(path) {\n this.abortRoutingPromises();\n\n set(this, 'isRouting', true);\n\n var routableState;\n\n try {\n path = path.replace(/^(?=[^\\/])/, \"/\");\n\n this.send('navigateAway');\n this.send('unroutePath', path);\n\n routableState = get(this, 'currentState');\n while (routableState && !routableState.get('isRoutable')) {\n routableState = get(routableState, 'parentState');\n }\n var currentURL = routableState ? routableState.absoluteRoute(this) : '';\n var rest = path.substr(currentURL.length);\n\n this.send('routePath', rest);\n } finally {\n set(this, 'isRouting', false);\n }\n\n routableState = get(this, 'currentState');\n while (routableState && !routableState.get('isRoutable')) {\n routableState = get(routableState, 'parentState');\n }\n\n if (routableState) {\n routableState.updateRoute(this, get(this, 'location'));\n }\n },\n\n urlFor: function(path, hash) {\n var currentState = get(this, 'currentState') || this,\n state = this.findStateByPath(currentState, path);\n\n Ember.assert(Ember.String.fmt(\"Could not find route with path '%@'\", [path]), !!state);\n Ember.assert(\"To get a URL for a state, it must have a `route` property.\", !!get(state, 'routeMatcher'));\n\n var location = get(this, 'location'),\n absoluteRoute = state.absoluteRoute(this, hash);\n\n return location.formatURL(absoluteRoute);\n },\n\n urlForEvent: function(eventName, context) {\n var currentState = get(this, 'currentState');\n var targetStateName = currentState.lookupEventTransition(eventName);\n\n Ember.assert(Ember.String.fmt(\"You must specify a target state for event '%@' in order to link to it in the current state '%@'.\", [eventName, get(currentState, 'path')]), !!targetStateName);\n\n var targetState = this.findStateByPath(currentState, targetStateName);\n\n Ember.assert(\"Your target state name \" + targetStateName + \" for event \" + eventName + \" did not resolve to a state\", !!targetState);\n\n var hash = this.serializeRecursively(targetState, context);\n\n return this.urlFor(targetStateName, hash);\n },\n\n /** @private */\n serializeRecursively: function(state, hash) {\n hash = state.serialize(this, hash);\n var parentState = state.get(\"parentState\");\n if (parentState && parentState instanceof Ember.Route) {\n return this.serializeRecursively(parentState, hash);\n } else {\n return hash;\n }\n },\n\n abortRoutingPromises: function() {\n if (this._routingPromises) {\n this._routingPromises.abort();\n this._routingPromises = null;\n }\n },\n\n /**\n @private\n */\n handleStatePromises: function(states, complete) {\n this.abortRoutingPromises();\n\n this.set('isLocked', true);\n\n var manager = this;\n\n this._routingPromises = Ember._PromiseChain.create({\n promises: states.slice(),\n\n successCallback: function() {\n manager.set('isLocked', false);\n complete();\n },\n\n failureCallback: function() {\n throw \"Unable to load object\";\n },\n\n promiseSuccessCallback: function(item, args) {\n set(item, 'object', args[0]);\n },\n\n abortCallback: function() {\n manager.set('isLocked', false);\n }\n }).start();\n },\n\n /** @private */\n init: function() {\n this._super();\n\n var location = get(this, 'location'),\n rootURL = get(this, 'rootURL');\n\n if ('string' === typeof location) {\n set(this, 'location', Ember.Location.create({\n implementation: location,\n rootURL: rootURL\n }));\n }\n },\n\n /** @private */\n willDestroy: function() {\n get(this, 'location').destroy();\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Routing\n// Copyright: ©2012 Tilde Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n(function() {\nvar get = Ember.get;\n\nEmber.StateManager.reopen(\n/** @scope Ember.StateManager.prototype */ {\n\n /**\n If the current state is a view state or the descendent of a view state,\n this property will be the view associated with it. If there is no\n view state active in this state manager, this value will be null.\n\n @type Ember.View\n */\n currentView: Ember.computed(function() {\n var currentState = get(this, 'currentState'),\n view;\n\n while (currentState) {\n // TODO: Remove this when view state is removed\n if (get(currentState, 'isViewState')) {\n view = get(currentState, 'view');\n if (view) { return view; }\n }\n\n currentState = get(currentState, 'parentState');\n }\n\n return null;\n }).property('currentState').cacheable()\n\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get, set = Ember.set;\n/**\n @class\n\n Ember.ViewState extends Ember.State to control the presence of a childView within a\n container based on the current state of the ViewState's StateManager.\n\n ## Interactions with Ember's View System.\n When combined with instances of `Ember.StateManager`, ViewState is designed to\n interact with Ember's view system to control which views are added to\n and removed from the DOM based on the manager's current state.\n\n By default, a StateManager will manage views inside the 'body' element. This can be\n customized by setting the `rootElement` property to a CSS selector of an existing\n HTML element you would prefer to receive view rendering.\n\n\n viewStates = Ember.StateManager.create({\n rootElement: '#some-other-element'\n })\n\n You can also specify a particular instance of `Ember.ContainerView` you would like to receive\n view rendering by setting the `rootView` property. You will be responsible for placing\n this element into the DOM yourself.\n\n aLayoutView = Ember.ContainerView.create()\n\n // make sure this view instance is added to the browser\n aLayoutView.appendTo('body')\n\n App.viewStates = Ember.StateManager.create({\n rootView: aLayoutView\n })\n\n\n Once you have an instance of StateManager controlling a view, you can provide states\n that are instances of `Ember.ViewState`. When the StateManager enters a state\n that is an instance of `Ember.ViewState` that `ViewState`'s `view` property will be\n instantiated and inserted into the StateManager's `rootView` or `rootElement`.\n When a state is exited, the `ViewState`'s view will be removed from the StateManager's\n view.\n\n ContactListView = Ember.View.extend({\n classNames: ['my-contacts-css-class'],\n template: Ember.Handlebars.compile('

People

')\n })\n\n PhotoListView = Ember.View.extend({\n classNames: ['my-photos-css-class'],\n template: Ember.Handlebars.compile('

Photos

')\n })\n\n viewStates = Ember.StateManager.create({\n showingPeople: Ember.ViewState.create({\n view: ContactListView\n }),\n showingPhotos: Ember.ViewState.create({\n view: PhotoListView\n })\n })\n\n viewStates.transitionTo('showingPeople')\n\n The above code will change the rendered HTML from\n\n \n\n to\n\n \n

People

\n \n\n Changing the current state via `transitionTo` from `showingPeople` to\n `showingPhotos` will remove the `showingPeople` view and add the `showingPhotos` view:\n\n viewStates.transitionTo('showingPhotos')\n\n will change the rendered HTML to\n\n \n

Photos

\n \n\n\n When entering nested `ViewState`s, each state's view will be draw into the the StateManager's\n `rootView` or `rootElement` as siblings.\n\n\n ContactListView = Ember.View.extend({\n classNames: ['my-contacts-css-class'],\n template: Ember.Handlebars.compile('

People

')\n })\n\n EditAContactView = Ember.View.extend({\n classNames: ['editing-a-contact-css-class'],\n template: Ember.Handlebars.compile('Editing...')\n })\n\n viewStates = Ember.StateManager.create({\n showingPeople: Ember.ViewState.create({\n view: ContactListView,\n\n withEditingPanel: Ember.ViewState.create({\n view: EditAContactView\n })\n })\n })\n\n\n viewStates.transitionTo('showingPeople.withEditingPanel')\n\n\n Will result in the following rendered HTML:\n\n \n

People

\n\n

\n Editing...\n

\n \n\n\n ViewState views are added and removed from their StateManager's view via their\n `enter` and `exit` methods. If you need to override these methods, be sure to call\n `_super` to maintain the adding and removing behavior:\n\n viewStates = Ember.StateManager.create({\n aState: Ember.ViewState.create({\n view: Ember.View.extend({}),\n enter: function(manager){\n // calling _super ensures this view will be\n // properly inserted\n this._super(manager);\n\n // now you can do other things\n }\n })\n })\n\n ## Managing Multiple Sections of A Page With States\n Multiple StateManagers can be combined to control multiple areas of an application's rendered views.\n Given the following HTML body:\n\n \n \n

\n \n\n You could separately manage view state for each section with two StateManagers\n\n navigationStates = Ember.StateManager.create({\n rootElement: '#sidebar-nav',\n userAuthenticated: Em.ViewState.create({\n view: Ember.View.extend({})\n }),\n userNotAuthenticated: Em.ViewState.create({\n view: Ember.View.extend({})\n })\n })\n\n contentStates = Ember.StateManager.create({\n rootElement: '#content-area',\n books: Em.ViewState.create({\n view: Ember.View.extend({})\n }),\n music: Em.ViewState.create({\n view: Ember.View.extend({})\n })\n })\n\n\n If you prefer to start with an empty body and manage state programmatically you\n can also take advantage of StateManager's `rootView` property and the ability of\n `Ember.ContainerView`s to manually manage their child views.\n\n\n dashboard = Ember.ContainerView.create({\n childViews: ['navigationAreaView', 'contentAreaView'],\n navigationAreaView: Ember.ContainerView.create({}),\n contentAreaView: Ember.ContainerView.create({})\n })\n\n navigationStates = Ember.StateManager.create({\n rootView: dashboard.get('navigationAreaView'),\n userAuthenticated: Em.ViewState.create({\n view: Ember.View.extend({})\n }),\n userNotAuthenticated: Em.ViewState.create({\n view: Ember.View.extend({})\n })\n })\n\n contentStates = Ember.StateManager.create({\n rootView: dashboard.get('contentAreaView'),\n books: Em.ViewState.create({\n view: Ember.View.extend({})\n }),\n music: Em.ViewState.create({\n view: Ember.View.extend({})\n })\n })\n\n dashboard.appendTo('body')\n\n ## User Manipulation of State via `{{action}}` Helpers\n The Handlebars `{{action}}` helper is StateManager-aware and will use StateManager action sending\n to connect user interaction to action-based state transitions.\n\n Given the following body and handlebars template\n\n \n \n \n\n And application code\n\n App = Ember.Application.create()\n App.appStates = Ember.StateManager.create({\n initialState: 'aState',\n aState: Ember.State.create({\n anAction: function(manager, context){}\n }),\n bState: Ember.State.create({})\n })\n\n A user initiated click or touch event on \"Go\" will trigger the 'anAction' method of\n `App.appStates.aState` with `App.appStates` as the first argument and a\n `jQuery.Event` object as the second object. The `jQuery.Event` will include a property\n `view` that references the `Ember.View` object that was interacted with.\n\n**/\nEmber.ViewState = Ember.State.extend(\n/** @scope Ember.ViewState.prototype */ {\n isViewState: true,\n\n init: function() {\n Ember.deprecate(\"Ember.ViewState is deprecated and will be removed from future releases. Consider using the outlet pattern to display nested views instead. For more information, see http://emberjs.com/guides/outlets/.\");\n return this._super();\n },\n\n enter: function(stateManager) {\n var view = get(this, 'view'), root, childViews;\n\n if (view) {\n if (Ember.View.detect(view)) {\n view = view.create();\n set(this, 'view', view);\n }\n\n Ember.assert('view must be an Ember.View', view instanceof Ember.View);\n\n root = stateManager.get('rootView');\n\n if (root) {\n childViews = get(root, 'childViews');\n childViews.pushObject(view);\n } else {\n root = stateManager.get('rootElement') || 'body';\n view.appendTo(root);\n }\n }\n },\n\n exit: function(stateManager) {\n var view = get(this, 'view');\n\n if (view) {\n // If the view has a parent view, then it is\n // part of a view hierarchy and should be removed\n // from its parent.\n if (get(view, 'parentView')) {\n view.removeFromParent();\n } else {\n\n // Otherwise, the view is a \"root view\" and\n // was appended directly to the DOM.\n view.remove();\n }\n }\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Statecharts\n// Copyright: ©2011 Living Social Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n(function() {\n// ==========================================================================\n// Project: metamorph\n// Copyright: ©2011 My Company Inc. All rights reserved.\n// ==========================================================================\n\n(function(window) {\n\n var K = function(){},\n guid = 0,\n document = window.document,\n\n // Feature-detect the W3C range API, the extended check is for IE9 which only partially supports ranges\n supportsRange = ('createRange' in document) && (typeof Range !== 'undefined') && Range.prototype.createContextualFragment,\n\n // Internet Explorer prior to 9 does not allow setting innerHTML if the first element\n // is a \"zero-scope\" element. This problem can be worked around by making\n // the first node an invisible text node. We, like Modernizr, use \n needsShy = (function(){\n var testEl = document.createElement('div');\n testEl.innerHTML = \"

\";\n testEl.firstChild.innerHTML = \"\";\n return testEl.firstChild.innerHTML === '';\n })();\n\n // Constructor that supports either Metamorph('foo') or new\n // Metamorph('foo');\n //\n // Takes a string of HTML as the argument.\n\n var Metamorph = function(html) {\n var self;\n\n if (this instanceof Metamorph) {\n self = this;\n } else {\n self = new K();\n }\n\n self.innerHTML = html;\n var myGuid = 'metamorph-'+(guid++);\n self.start = myGuid + '-start';\n self.end = myGuid + '-end';\n\n return self;\n };\n\n K.prototype = Metamorph.prototype;\n\n var rangeFor, htmlFunc, removeFunc, outerHTMLFunc, appendToFunc, afterFunc, prependFunc, startTagFunc, endTagFunc;\n\n outerHTMLFunc = function() {\n return this.startTag() + this.innerHTML + this.endTag();\n };\n\n startTagFunc = function() {\n return \"\";\n };\n\n endTagFunc = function() {\n return \"\";\n };\n\n // If we have the W3C range API, this process is relatively straight forward.\n if (supportsRange) {\n\n // Get a range for the current morph. Optionally include the starting and\n // ending placeholders.\n rangeFor = function(morph, outerToo) {\n var range = document.createRange();\n var before = document.getElementById(morph.start);\n var after = document.getElementById(morph.end);\n\n if (outerToo) {\n range.setStartBefore(before);\n range.setEndAfter(after);\n } else {\n range.setStartAfter(before);\n range.setEndBefore(after);\n }\n\n return range;\n };\n\n htmlFunc = function(html, outerToo) {\n // get a range for the current metamorph object\n var range = rangeFor(this, outerToo);\n\n // delete the contents of the range, which will be the\n // nodes between the starting and ending placeholder.\n range.deleteContents();\n\n // create a new document fragment for the HTML\n var fragment = range.createContextualFragment(html);\n\n // insert the fragment into the range\n range.insertNode(fragment);\n };\n\n removeFunc = function() {\n // get a range for the current metamorph object including\n // the starting and ending placeholders.\n var range = rangeFor(this, true);\n\n // delete the entire range.\n range.deleteContents();\n };\n\n appendToFunc = function(node) {\n var range = document.createRange();\n range.setStart(node);\n range.collapse(false);\n var frag = range.createContextualFragment(this.outerHTML());\n node.appendChild(frag);\n };\n\n afterFunc = function(html) {\n var range = document.createRange();\n var after = document.getElementById(this.end);\n\n range.setStartAfter(after);\n range.setEndAfter(after);\n\n var fragment = range.createContextualFragment(html);\n range.insertNode(fragment);\n };\n\n prependFunc = function(html) {\n var range = document.createRange();\n var start = document.getElementById(this.start);\n\n range.setStartAfter(start);\n range.setEndAfter(start);\n\n var fragment = range.createContextualFragment(html);\n range.insertNode(fragment);\n };\n\n } else {\n /**\n * This code is mostly taken from jQuery, with one exception. In jQuery's case, we\n * have some HTML and we need to figure out how to convert it into some nodes.\n *\n * In this case, jQuery needs to scan the HTML looking for an opening tag and use\n * that as the key for the wrap map. In our case, we know the parent node, and\n * can use its type as the key for the wrap map.\n **/\n var wrapMap = {\n select: [ 1, \"\" ],\n fieldset: [ 1, \"

\", \"

\" ],\n table: [ 1, \"\", \"

\" ],\n tbody: [ 2, \"\", \"

\" ],\n tr: [ 3, \"\", \"

\" ],\n colgroup: [ 2, \"\", \"

\" ],\n map: [ 1, \"\", \"\" ],\n _default: [ 0, \"\", \"\" ]\n };\n\n /**\n * Given a parent node and some HTML, generate a set of nodes. Return the first\n * node, which will allow us to traverse the rest using nextSibling.\n *\n * We need to do this because innerHTML in IE does not really parse the nodes.\n **/\n var firstNodeFor = function(parentNode, html) {\n var arr = wrapMap[parentNode.tagName.toLowerCase()] || wrapMap._default;\n var depth = arr[0], start = arr[1], end = arr[2];\n\n if (needsShy) { html = ''+html; }\n\n var element = document.createElement('div');\n element.innerHTML = start + html + end;\n\n for (var i=0; i<=depth; i++) {\n element = element.firstChild;\n }\n\n // Look for to remove it.\n if (needsShy) {\n var shyElement = element;\n\n // Sometimes we get nameless elements with the shy inside\n while (shyElement.nodeType === 1 && !shyElement.nodeName) {\n shyElement = shyElement.firstChild;\n }\n\n // At this point it's the actual unicode character.\n if (shyElement.nodeType === 3 && shyElement.nodeValue.charAt(0) === \"\\u00AD\") {\n shyElement.nodeValue = shyElement.nodeValue.slice(1);\n }\n }\n\n return element;\n };\n\n /**\n * In some cases, Internet Explorer can create an anonymous node in\n * the hierarchy with no tagName. You can create this scenario via:\n *\n * div = document.createElement(\"div\");\n * div.innerHTML = \"

\";\n * div.firstChild.firstChild.tagName //=> \"\"\n *\n * If our script markers are inside such a node, we need to find that\n * node and use *it* as the marker.\n **/\n var realNode = function(start) {\n while (start.parentNode.tagName === \"\") {\n start = start.parentNode;\n }\n\n return start;\n };\n\n /**\n * When automatically adding a tbody, Internet Explorer inserts the\n * tbody immediately before the first . Other browsers create it\n * before the first node, no matter what.\n *\n * This means the the following code:\n *\n * div = document.createElement(\"div\");\n * div.innerHTML = \"

\n *\n * Generates the following DOM in IE:\n *\n * + div\n * + table\n * - script id='first'\n * + tbody\n * + tr\n * + td\n * - \"hi\"\n * - script id='last'\n *\n * Which means that the two script tags, even though they were\n * inserted at the same point in the hierarchy in the original\n * HTML, now have different parents.\n *\n * This code reparents the first script tag by making it the tbody's\n * first child.\n **/\n var fixParentage = function(start, end) {\n if (start.parentNode !== end.parentNode) {\n end.parentNode.insertBefore(start, end.parentNode.firstChild);\n }\n };\n\n htmlFunc = function(html, outerToo) {\n // get the real starting node. see realNode for details.\n var start = realNode(document.getElementById(this.start));\n var end = document.getElementById(this.end);\n var parentNode = end.parentNode;\n var node, nextSibling, last;\n\n // make sure that the start and end nodes share the same\n // parent. If not, fix it.\n fixParentage(start, end);\n\n // remove all of the nodes after the starting placeholder and\n // before the ending placeholder.\n node = start.nextSibling;\n while (node) {\n nextSibling = node.nextSibling;\n last = node === end;\n\n // if this is the last node, and we want to remove it as well,\n // set the `end` node to the next sibling. This is because\n // for the rest of the function, we insert the new nodes\n // before the end (note that insertBefore(node, null) is\n // the same as appendChild(node)).\n //\n // if we do not want to remove it, just break.\n if (last) {\n if (outerToo) { end = node.nextSibling; } else { break; }\n }\n\n node.parentNode.removeChild(node);\n\n // if this is the last node and we didn't break before\n // (because we wanted to remove the outer nodes), break\n // now.\n if (last) { break; }\n\n node = nextSibling;\n }\n\n // get the first node for the HTML string, even in cases like\n // tables and lists where a simple innerHTML on a div would\n // swallow some of the content.\n node = firstNodeFor(start.parentNode, html);\n\n // copy the nodes for the HTML between the starting and ending\n // placeholder.\n while (node) {\n nextSibling = node.nextSibling;\n parentNode.insertBefore(node, end);\n node = nextSibling;\n }\n };\n\n // remove the nodes in the DOM representing this metamorph.\n //\n // this includes the starting and ending placeholders.\n removeFunc = function() {\n var start = realNode(document.getElementById(this.start));\n var end = document.getElementById(this.end);\n\n this.html('');\n start.parentNode.removeChild(start);\n end.parentNode.removeChild(end);\n };\n\n appendToFunc = function(parentNode) {\n var node = firstNodeFor(parentNode, this.outerHTML());\n\n while (node) {\n nextSibling = node.nextSibling;\n parentNode.appendChild(node);\n node = nextSibling;\n }\n };\n\n afterFunc = function(html) {\n // get the real starting node. see realNode for details.\n var end = document.getElementById(this.end);\n var insertBefore = end.nextSibling;\n var parentNode = end.parentNode;\n var nextSibling;\n var node;\n\n // get the first node for the HTML string, even in cases like\n // tables and lists where a simple innerHTML on a div would\n // swallow some of the content.\n node = firstNodeFor(parentNode, html);\n\n // copy the nodes for the HTML between the starting and ending\n // placeholder.\n while (node) {\n nextSibling = node.nextSibling;\n parentNode.insertBefore(node, insertBefore);\n node = nextSibling;\n }\n };\n\n prependFunc = function(html) {\n var start = document.getElementById(this.start);\n var parentNode = start.parentNode;\n var nextSibling;\n var node;\n\n node = firstNodeFor(parentNode, html);\n var insertBefore = start.nextSibling;\n\n while (node) {\n nextSibling = node.nextSibling;\n parentNode.insertBefore(node, insertBefore);\n node = nextSibling;\n }\n }\n }\n\n Metamorph.prototype.html = function(html) {\n this.checkRemoved();\n if (html === undefined) { return this.innerHTML; }\n\n htmlFunc.call(this, html);\n\n this.innerHTML = html;\n };\n\n Metamorph.prototype.replaceWith = function(html) {\n this.checkRemoved();\n htmlFunc.call(this, html, true);\n };\n\n Metamorph.prototype.remove = removeFunc;\n Metamorph.prototype.outerHTML = outerHTMLFunc;\n Metamorph.prototype.appendTo = appendToFunc;\n Metamorph.prototype.after = afterFunc;\n Metamorph.prototype.prepend = prependFunc;\n Metamorph.prototype.startTag = startTagFunc;\n Metamorph.prototype.endTag = endTagFunc;\n\n Metamorph.prototype.isRemoved = function() {\n var before = document.getElementById(this.start);\n var after = document.getElementById(this.end);\n\n return !before || !after;\n };\n\n Metamorph.prototype.checkRemoved = function() {\n if (this.isRemoved()) {\n throw new Error(\"Cannot perform operations on a Metamorph that is not in the DOM.\");\n }\n };\n\n window.Metamorph = Metamorph;\n})(this);\n\n\n})();\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\nvar objectCreate = Ember.create;\n\n/**\n @namespace\n @name Handlebars\n @private\n*/\n\n/**\n @namespace\n @name Handlebars.helpers\n @description Helpers for Handlebars templates\n*/\n\nEmber.assert(\"Ember Handlebars requires Handlebars 1.0.beta.5 or greater\", window.Handlebars && window.Handlebars.VERSION.match(/^1\\.0\\.beta\\.[56789]$|^1\\.0\\.rc\\.[123456789]+/));\n\n/**\n @class\n\n Prepares the Handlebars templating library for use inside Ember's view\n system.\n\n The Ember.Handlebars object is the standard Handlebars library, extended to use\n Ember's get() method instead of direct property access, which allows\n computed properties to be used inside templates.\n\n To create an Ember.Handlebars template, call Ember.Handlebars.compile(). This will\n return a function that can be used by Ember.View for rendering.\n*/\nEmber.Handlebars = objectCreate(Handlebars);\n\nEmber.Handlebars.helpers = objectCreate(Handlebars.helpers);\n\n/**\n Override the the opcode compiler and JavaScript compiler for Handlebars.\n*/\nEmber.Handlebars.Compiler = function() {};\nEmber.Handlebars.Compiler.prototype = objectCreate(Handlebars.Compiler.prototype);\nEmber.Handlebars.Compiler.prototype.compiler = Ember.Handlebars.Compiler;\n\nEmber.Handlebars.JavaScriptCompiler = function() {};\nEmber.Handlebars.JavaScriptCompiler.prototype = objectCreate(Handlebars.JavaScriptCompiler.prototype);\nEmber.Handlebars.JavaScriptCompiler.prototype.compiler = Ember.Handlebars.JavaScriptCompiler;\nEmber.Handlebars.JavaScriptCompiler.prototype.namespace = \"Ember.Handlebars\";\n\n\nEmber.Handlebars.JavaScriptCompiler.prototype.initializeBuffer = function() {\n return \"''\";\n};\n\n/**\n Override the default buffer for Ember Handlebars. By default, Handlebars creates\n an empty String at the beginning of each invocation and appends to it. Ember's\n Handlebars overrides this to append to a single shared buffer.\n\n @private\n*/\nEmber.Handlebars.JavaScriptCompiler.prototype.appendToBuffer = function(string) {\n return \"data.buffer.push(\"+string+\");\";\n};\n\n/**\n Rewrite simple mustaches from {{foo}} to {{bind \"foo\"}}. This means that all simple\n mustaches in Ember's Handlebars will also set up an observer to keep the DOM\n up to date when the underlying property changes.\n\n @private\n*/\nEmber.Handlebars.Compiler.prototype.mustache = function(mustache) {\n if (mustache.params.length || mustache.hash) {\n return Handlebars.Compiler.prototype.mustache.call(this, mustache);\n } else {\n var id = new Handlebars.AST.IdNode(['_triageMustache']);\n\n // Update the mustache node to include a hash value indicating whether the original node\n // was escaped. This will allow us to properly escape values when the underlying value\n // changes and we need to re-render the value.\n if(!mustache.escaped) {\n mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]);\n mustache.hash.pairs.push([\"unescaped\", new Handlebars.AST.StringNode(\"true\")]);\n }\n mustache = new Handlebars.AST.MustacheNode([id].concat([mustache.id]), mustache.hash, !mustache.escaped);\n return Handlebars.Compiler.prototype.mustache.call(this, mustache);\n }\n};\n\n/**\n Used for precompilation of Ember Handlebars templates. This will not be used during normal\n app execution.\n\n @param {String} string The template to precompile\n*/\nEmber.Handlebars.precompile = function(string) {\n var ast = Handlebars.parse(string);\n\n var options = {\n knownHelpers: {\n action: true,\n unbound: true,\n bindAttr: true,\n template: true,\n view: true,\n _triageMustache: true\n },\n data: true,\n stringParams: true\n };\n\n var environment = new Ember.Handlebars.Compiler().compile(ast, options);\n return new Ember.Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true);\n};\n\n/**\n The entry point for Ember Handlebars. This replaces the default Handlebars.compile and turns on\n template-local data and String parameters.\n\n @param {String} string The template to compile\n*/\nEmber.Handlebars.compile = function(string) {\n var ast = Handlebars.parse(string);\n var options = { data: true, stringParams: true };\n var environment = new Ember.Handlebars.Compiler().compile(ast, options);\n var templateSpec = new Ember.Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true);\n\n return Handlebars.template(templateSpec);\n};\n\n/**\n If a path starts with a reserved keyword, returns the root\n that should be used.\n\n @private\n*/\nvar normalizePath = Ember.Handlebars.normalizePath = function(root, path, data) {\n var keywords = (data && data.keywords) || {},\n keyword, isKeyword;\n\n // Get the first segment of the path. For example, if the\n // path is \"foo.bar.baz\", returns \"foo\".\n keyword = path.split('.', 1)[0];\n\n // Test to see if the first path is a keyword that has been\n // passed along in the view's data hash. If so, we will treat\n // that object as the new root.\n if (keywords.hasOwnProperty(keyword)) {\n // Look up the value in the template's data hash.\n root = keywords[keyword];\n isKeyword = true;\n\n // Handle cases where the entire path is the reserved\n // word. In that case, return the object itself.\n if (path === keyword) {\n path = '';\n } else {\n // Strip the keyword from the path and look up\n // the remainder from the newly found root.\n path = path.substr(keyword.length+1);\n }\n }\n\n return { root: root, path: path, isKeyword: isKeyword };\n};\n/**\n Lookup both on root and on window. If the path starts with\n a keyword, the corresponding object will be looked up in the\n template's data hash and used to resolve the path.\n\n @param {Object} root The object to look up the property on\n @param {String} path The path to be lookedup\n @param {Object} options The template's option hash\n*/\n\nEmber.Handlebars.getPath = function(root, path, options) {\n var data = options && options.data,\n normalizedPath = normalizePath(root, path, data),\n value;\n\n // In cases where the path begins with a keyword, change the\n // root to the value represented by that keyword, and ensure\n // the path is relative to it.\n root = normalizedPath.root;\n path = normalizedPath.path;\n\n value = Ember.get(root, path);\n\n if (value === undefined && root !== window && Ember.isGlobalPath(path)) {\n value = Ember.get(window, path);\n }\n return value;\n};\n\n/**\n Registers a helper in Handlebars that will be called if no property with the\n given name can be found on the current context object, and no helper with\n that name is registered.\n\n This throws an exception with a more helpful error message so the user can\n track down where the problem is happening.\n\n @name Handlebars.helpers.helperMissing\n @param {String} path\n @param {Hash} options\n*/\nEmber.Handlebars.registerHelper('helperMissing', function(path, options) {\n var error, view = \"\";\n\n error = \"%@ Handlebars error: Could not find property '%@' on object %@.\";\n if (options.data){\n view = options.data.view;\n }\n throw new Ember.Error(Ember.String.fmt(error, [view, path, this]));\n});\n\n\n})();\n\n\n\n(function() {\n\nEmber.String.htmlSafe = function(str) {\n return new Handlebars.SafeString(str);\n};\n\nvar htmlSafe = Ember.String.htmlSafe;\n\nif (Ember.EXTEND_PROTOTYPES) {\n\n /**\n @see Ember.String.htmlSafe\n */\n String.prototype.htmlSafe = function() {\n return htmlSafe(this);\n };\n\n}\n\n})();\n\n\n\n(function() {\n/*jshint newcap:false*/\nvar set = Ember.set, get = Ember.get;\n\nvar DOMManager = {\n remove: function(view) {\n var morph = view.morph;\n if (morph.isRemoved()) { return; }\n set(view, 'element', null);\n view._lastInsert = null;\n morph.remove();\n },\n\n prepend: function(view, childView) {\n childView._insertElementLater(function() {\n var morph = view.morph;\n morph.prepend(childView.outerHTML);\n childView.outerHTML = null;\n });\n },\n\n after: function(view, nextView) {\n nextView._insertElementLater(function() {\n var morph = view.morph;\n morph.after(nextView.outerHTML);\n nextView.outerHTML = null;\n });\n },\n\n replace: function(view) {\n var morph = view.morph;\n\n view.transitionTo('preRender');\n view.clearRenderedChildren();\n var buffer = view.renderToBuffer();\n\n Ember.run.schedule('render', this, function() {\n if (get(view, 'isDestroyed')) { return; }\n view.invalidateRecursively('element');\n view._notifyWillInsertElement();\n morph.replaceWith(buffer.string());\n view.transitionTo('inDOM');\n view._notifyDidInsertElement();\n });\n },\n\n empty: function(view) {\n view.morph.html(\"\");\n }\n};\n\n// The `morph` and `outerHTML` properties are internal only\n// and not observable.\n\nEmber._Metamorph = Ember.Mixin.create({\n isVirtual: true,\n tagName: '',\n\n init: function() {\n this._super();\n this.morph = Metamorph();\n },\n\n beforeRender: function(buffer) {\n buffer.push(this.morph.startTag());\n },\n\n afterRender: function(buffer) {\n buffer.push(this.morph.endTag());\n },\n\n createElement: function() {\n var buffer = this.renderToBuffer();\n this.outerHTML = buffer.string();\n this.clearBuffer();\n },\n\n domManager: DOMManager\n});\n\nEmber._MetamorphView = Ember.View.extend(Ember._Metamorph);\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\n\nvar get = Ember.get, set = Ember.set, getPath = Ember.Handlebars.getPath;\n/**\n @ignore\n @private\n @class\n\n Ember._HandlebarsBoundView is a private view created by the Handlebars `{{bind}}`\n helpers that is used to keep track of bound properties.\n\n Every time a property is bound using a `{{mustache}}`, an anonymous subclass\n of Ember._HandlebarsBoundView is created with the appropriate sub-template and\n context set up. When the associated property changes, just the template for\n this view will re-render.\n*/\nEmber._HandlebarsBoundView = Ember._MetamorphView.extend({\n/** @scope Ember._HandlebarsBoundView.prototype */\n\n /**\n The function used to determine if the `displayTemplate` or\n `inverseTemplate` should be rendered. This should be a function that takes\n a value and returns a Boolean.\n\n @type Function\n @default null\n */\n shouldDisplayFunc: null,\n\n /**\n Whether the template rendered by this view gets passed the context object\n of its parent template, or gets passed the value of retrieving `path`\n from the `pathRoot`.\n\n For example, this is true when using the `{{#if}}` helper, because the\n template inside the helper should look up properties relative to the same\n object as outside the block. This would be false when used with `{{#with\n foo}}` because the template should receive the object found by evaluating\n `foo`.\n\n @type Boolean\n @default false\n */\n preserveContext: false,\n\n /**\n If `preserveContext` is true, this is the object that will be used\n to render the template.\n\n @type Object\n */\n previousContext: null,\n\n /**\n The template to render when `shouldDisplayFunc` evaluates to true.\n\n @type Function\n @default null\n */\n displayTemplate: null,\n\n /**\n The template to render when `shouldDisplayFunc` evaluates to false.\n\n @type Function\n @default null\n */\n inverseTemplate: null,\n\n\n /**\n The path to look up on `pathRoot` that is passed to\n `shouldDisplayFunc` to determine which template to render.\n\n In addition, if `preserveContext` is false, the object at this path will\n be passed to the template when rendering.\n\n @type String\n @default null\n */\n path: null,\n\n /**\n The object from which the `path` will be looked up. Sometimes this is the\n same as the `previousContext`, but in cases where this view has been generated\n for paths that start with a keyword such as `view` or `controller`, the\n path root will be that resolved object.\n\n @type Object\n */\n pathRoot: null,\n\n normalizedValue: Ember.computed(function() {\n var path = get(this, 'path'),\n pathRoot = get(this, 'pathRoot'),\n valueNormalizer = get(this, 'valueNormalizerFunc'),\n result, templateData;\n\n // Use the pathRoot as the result if no path is provided. This\n // happens if the path is `this`, which gets normalized into\n // a `pathRoot` of the current Handlebars context and a path\n // of `''`.\n if (path === '') {\n result = pathRoot;\n } else {\n templateData = get(this, 'templateData');\n result = getPath(pathRoot, path, { data: templateData });\n }\n\n return valueNormalizer ? valueNormalizer(result) : result;\n }).property('path', 'pathRoot', 'valueNormalizerFunc').volatile(),\n\n rerenderIfNeeded: function() {\n if (!get(this, 'isDestroyed') && get(this, 'normalizedValue') !== this._lastNormalizedValue) {\n this.rerender();\n }\n },\n\n /**\n Determines which template to invoke, sets up the correct state based on\n that logic, then invokes the default Ember.View `render` implementation.\n\n This method will first look up the `path` key on `pathRoot`,\n then pass that value to the `shouldDisplayFunc` function. If that returns\n true, the `displayTemplate` function will be rendered to DOM. Otherwise,\n `inverseTemplate`, if specified, will be rendered.\n\n For example, if this Ember._HandlebarsBoundView represented the {{#with foo}}\n helper, it would look up the `foo` property of its context, and\n `shouldDisplayFunc` would always return true. The object found by looking\n up `foo` would be passed to `displayTemplate`.\n\n @param {Ember.RenderBuffer} buffer\n */\n render: function(buffer) {\n // If not invoked via a triple-mustache ({{{foo}}}), escape\n // the content of the template.\n var escape = get(this, 'isEscaped');\n\n var shouldDisplay = get(this, 'shouldDisplayFunc'),\n preserveContext = get(this, 'preserveContext'),\n context = get(this, 'previousContext');\n\n var inverseTemplate = get(this, 'inverseTemplate'),\n displayTemplate = get(this, 'displayTemplate');\n\n var result = get(this, 'normalizedValue');\n this._lastNormalizedValue = result;\n\n // First, test the conditional to see if we should\n // render the template or not.\n if (shouldDisplay(result)) {\n set(this, 'template', displayTemplate);\n\n // If we are preserving the context (for example, if this\n // is an #if block, call the template with the same object.\n if (preserveContext) {\n set(this, '_context', context);\n } else {\n // Otherwise, determine if this is a block bind or not.\n // If so, pass the specified object to the template\n if (displayTemplate) {\n set(this, '_context', result);\n } else {\n // This is not a bind block, just push the result of the\n // expression to the render context and return.\n if (result === null || result === undefined) {\n result = \"\";\n } else if (!(result instanceof Handlebars.SafeString)) {\n result = String(result);\n }\n\n if (escape) { result = Handlebars.Utils.escapeExpression(result); }\n buffer.push(result);\n return;\n }\n }\n } else if (inverseTemplate) {\n set(this, 'template', inverseTemplate);\n\n if (preserveContext) {\n set(this, '_context', context);\n } else {\n set(this, '_context', result);\n }\n } else {\n set(this, 'template', function() { return ''; });\n }\n\n return this._super(buffer);\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;\nvar getPath = Ember.Handlebars.getPath, normalizePath = Ember.Handlebars.normalizePath;\nvar forEach = Ember.ArrayPolyfills.forEach;\n\nvar EmberHandlebars = Ember.Handlebars, helpers = EmberHandlebars.helpers;\n\n// Binds a property into the DOM. This will create a hook in DOM that the\n// KVO system will look for and update if the property changes.\n/** @private */\nfunction bind(property, options, preserveContext, shouldDisplay, valueNormalizer) {\n var data = options.data,\n fn = options.fn,\n inverse = options.inverse,\n view = data.view,\n currentContext = this,\n pathRoot, path, normalized;\n\n normalized = normalizePath(currentContext, property, data);\n\n pathRoot = normalized.root;\n path = normalized.path;\n\n // Set up observers for observable objects\n if ('object' === typeof this) {\n // Create the view that will wrap the output of this template/property\n // and add it to the nearest view's childViews array.\n // See the documentation of Ember._HandlebarsBoundView for more.\n var bindView = view.createChildView(Ember._HandlebarsBoundView, {\n preserveContext: preserveContext,\n shouldDisplayFunc: shouldDisplay,\n valueNormalizerFunc: valueNormalizer,\n displayTemplate: fn,\n inverseTemplate: inverse,\n path: path,\n pathRoot: pathRoot,\n previousContext: currentContext,\n isEscaped: !options.hash.unescaped,\n templateData: options.data\n });\n\n view.appendChild(bindView);\n\n /** @private */\n var observer = function() {\n Ember.run.once(bindView, 'rerenderIfNeeded');\n };\n\n // Observes the given property on the context and\n // tells the Ember._HandlebarsBoundView to re-render. If property\n // is an empty string, we are printing the current context\n // object ({{this}}) so updating it is not our responsibility.\n if (path !== '') {\n Ember.addObserver(pathRoot, path, observer);\n }\n } else {\n // The object is not observable, so just render it out and\n // be done with it.\n data.buffer.push(getPath(pathRoot, path, options));\n }\n}\n\n/**\n '_triageMustache' is used internally select between a binding and helper for\n the given context. Until this point, it would be hard to determine if the\n mustache is a property reference or a regular helper reference. This triage\n helper resolves that.\n\n This would not be typically invoked by directly.\n\n @private\n @name Handlebars.helpers._triageMustache\n @param {String} property Property/helperID to triage\n @param {Function} fn Context to provide for rendering\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('_triageMustache', function(property, fn) {\n Ember.assert(\"You cannot pass more than one argument to the _triageMustache helper\", arguments.length <= 2);\n if (helpers[property]) {\n return helpers[property].call(this, fn);\n }\n else {\n return helpers.bind.apply(this, arguments);\n }\n});\n\n/**\n `bind` can be used to display a value, then update that value if it\n changes. For example, if you wanted to print the `title` property of\n `content`:\n\n {{bind \"content.title\"}}\n\n This will return the `title` property as a string, then create a new\n observer at the specified path. If it changes, it will update the value in\n DOM. Note that if you need to support IE7 and IE8 you must modify the\n model objects properties using Ember.get() and Ember.set() for this to work as\n it relies on Ember's KVO system. For all other browsers this will be handled\n for you automatically.\n\n @private\n @name Handlebars.helpers.bind\n @param {String} property Property to bind\n @param {Function} fn Context to provide for rendering\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('bind', function(property, fn) {\n Ember.assert(\"You cannot pass more than one argument to the bind helper\", arguments.length <= 2);\n\n var context = (fn.contexts && fn.contexts[0]) || this;\n\n return bind.call(context, property, fn, false, function(result) {\n return !Ember.none(result);\n });\n});\n\n/**\n Use the `boundIf` helper to create a conditional that re-evaluates\n whenever the bound value changes.\n\n {{#boundIf \"content.shouldDisplayTitle\"}}\n {{content.title}}\n {{/boundIf}}\n\n @private\n @name Handlebars.helpers.boundIf\n @param {String} property Property to bind\n @param {Function} fn Context to provide for rendering\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('boundIf', function(property, fn) {\n var context = (fn.contexts && fn.contexts[0]) || this;\n var func = function(result) {\n if (Ember.typeOf(result) === 'array') {\n return get(result, 'length') !== 0;\n } else {\n return !!result;\n }\n };\n\n return bind.call(context, property, fn, true, func, func);\n});\n\n/**\n @name Handlebars.helpers.with\n @param {Function} context\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('with', function(context, options) {\n if (arguments.length === 4) {\n var keywordName, path, rootPath, normalized;\n\n Ember.assert(\"If you pass more than one argument to the with helper, it must be in the form #with foo as bar\", arguments[1] === \"as\");\n options = arguments[3];\n keywordName = arguments[2];\n path = arguments[0];\n\n Ember.assert(\"You must pass a block to the with helper\", options.fn && options.fn !== Handlebars.VM.noop);\n\n if (Ember.isGlobalPath(path)) {\n Ember.bind(options.data.keywords, keywordName, path);\n } else {\n normalized = normalizePath(this, path, options.data);\n path = normalized.path;\n rootPath = normalized.root;\n\n // This is a workaround for the fact that you cannot bind separate objects\n // together. When we implement that functionality, we should use it here.\n var contextKey = Ember.$.expando + Ember.guidFor(rootPath);\n options.data.keywords[contextKey] = rootPath;\n\n // if the path is '' (\"this\"), just bind directly to the current context\n var contextPath = path ? contextKey + '.' + path : contextKey;\n Ember.bind(options.data.keywords, keywordName, contextPath);\n }\n\n return bind.call(this, path, options.fn, true, function(result) {\n return !Ember.none(result);\n });\n } else {\n Ember.assert(\"You must pass exactly one argument to the with helper\", arguments.length === 2);\n Ember.assert(\"You must pass a block to the with helper\", options.fn && options.fn !== Handlebars.VM.noop);\n return helpers.bind.call(options.contexts[0], context, options);\n }\n});\n\n\n/**\n @name Handlebars.helpers.if\n @param {Function} context\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('if', function(context, options) {\n Ember.assert(\"You must pass exactly one argument to the if helper\", arguments.length === 2);\n Ember.assert(\"You must pass a block to the if helper\", options.fn && options.fn !== Handlebars.VM.noop);\n\n return helpers.boundIf.call(options.contexts[0], context, options);\n});\n\n/**\n @name Handlebars.helpers.unless\n @param {Function} context\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('unless', function(context, options) {\n Ember.assert(\"You must pass exactly one argument to the unless helper\", arguments.length === 2);\n Ember.assert(\"You must pass a block to the unless helper\", options.fn && options.fn !== Handlebars.VM.noop);\n\n var fn = options.fn, inverse = options.inverse;\n\n options.fn = inverse;\n options.inverse = fn;\n\n return helpers.boundIf.call(options.contexts[0], context, options);\n});\n\n/**\n `bindAttr` allows you to create a binding between DOM element attributes and\n Ember objects. For example:\n\n $\"imageTitle\"}}$ \n\n @name Handlebars.helpers.bindAttr\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('bindAttr', function(options) {\n\n var attrs = options.hash;\n\n Ember.assert(\"You must specify at least one hash argument to bindAttr\", !!Ember.keys(attrs).length);\n\n var view = options.data.view;\n var ret = [];\n var ctx = this;\n\n // Generate a unique id for this element. This will be added as a\n // data attribute to the element so it can be looked up when\n // the bound property changes.\n var dataId = ++Ember.$.uuid;\n\n // Handle classes differently, as we can bind multiple classes\n var classBindings = attrs['class'];\n if (classBindings !== null && classBindings !== undefined) {\n var classResults = EmberHandlebars.bindClasses(this, classBindings, view, dataId, options);\n ret.push('class=\"' + Handlebars.Utils.escapeExpression(classResults.join(' ')) + '\"');\n delete attrs['class'];\n }\n\n var attrKeys = Ember.keys(attrs);\n\n // For each attribute passed, create an observer and emit the\n // current value of the property as an attribute.\n forEach.call(attrKeys, function(attr) {\n var path = attrs[attr],\n pathRoot, normalized;\n\n Ember.assert(fmt(\"You must provide a String for a bound attribute, not %@\", [path]), typeof path === 'string');\n\n normalized = normalizePath(ctx, path, options.data);\n\n pathRoot = normalized.root;\n path = normalized.path;\n\n var value = (path === 'this') ? pathRoot : getPath(pathRoot, path, options),\n type = Ember.typeOf(value);\n\n Ember.assert(fmt(\"Attributes must be numbers, strings or booleans, not %@\", [value]), value === null || value === undefined || type === 'number' || type === 'string' || type === 'boolean');\n\n var observer, invoker;\n\n /** @private */\n observer = function observer() {\n var result = getPath(pathRoot, path, options);\n\n Ember.assert(fmt(\"Attributes must be numbers, strings or booleans, not %@\", [result]), result === null || result === undefined || typeof result === 'number' || typeof result === 'string' || typeof result === 'boolean');\n\n var elem = view.$(\"[data-bindattr-\" + dataId + \"='\" + dataId + \"']\");\n\n // If we aren't able to find the element, it means the element\n // to which we were bound has been removed from the view.\n // In that case, we can assume the template has been re-rendered\n // and we need to clean up the observer.\n if (elem.length === 0) {\n Ember.removeObserver(pathRoot, path, invoker);\n return;\n }\n\n Ember.View.applyAttributeBindings(elem, attr, result);\n };\n\n /** @private */\n invoker = function() {\n Ember.run.once(observer);\n };\n\n // Add an observer to the view for when the property changes.\n // When the observer fires, find the element using the\n // unique data id and update the attribute to the new value.\n if (path !== 'this') {\n Ember.addObserver(pathRoot, path, invoker);\n }\n\n // if this changes, also change the logic in ember-views/lib/views/view.js\n if ((type === 'string' || (type === 'number' && !isNaN(value)))) {\n ret.push(attr + '=\"' + Handlebars.Utils.escapeExpression(value) + '\"');\n } else if (value && type === 'boolean') {\n // The developer controls the attr name, so it should always be safe\n ret.push(attr + '=\"' + attr + '\"');\n }\n }, this);\n\n // Add the unique identifier\n // NOTE: We use all lower-case since Firefox has problems with mixed case in SVG\n ret.push('data-bindattr-' + dataId + '=\"' + dataId + '\"');\n return new EmberHandlebars.SafeString(ret.join(' '));\n});\n\n/**\n Helper that, given a space-separated string of property paths and a context,\n returns an array of class names. Calling this method also has the side\n effect of setting up observers at those property paths, such that if they\n change, the correct class name will be reapplied to the DOM element.\n\n For example, if you pass the string \"fooBar\", it will first look up the\n \"fooBar\" value of the context. If that value is true, it will add the\n \"foo-bar\" class to the current element (i.e., the dasherized form of\n \"fooBar\"). If the value is a string, it will add that string as the class.\n Otherwise, it will not add any new class name.\n\n @param {Ember.Object} context\n The context from which to lookup properties\n\n @param {String} classBindings\n A string, space-separated, of class bindings to use\n\n @param {Ember.View} view\n The view in which observers should look for the element to update\n\n @param {Srting} bindAttrId\n Optional bindAttr id used to lookup elements\n\n @returns {Array} An array of class names to add\n*/\nEmberHandlebars.bindClasses = function(context, classBindings, view, bindAttrId, options) {\n var ret = [], newClass, value, elem;\n\n // Helper method to retrieve the property from the context and\n // determine which class string to return, based on whether it is\n // a Boolean or not.\n var classStringForPath = function(root, parsedPath, options) {\n var val,\n path = parsedPath.path;\n\n if (path === 'this') {\n val = root;\n } else if (path === '') {\n val = true;\n } else {\n val = getPath(root, path, options);\n }\n\n return Ember.View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName);\n };\n\n // For each property passed, loop through and setup\n // an observer.\n forEach.call(classBindings.split(' '), function(binding) {\n\n // Variable in which the old class value is saved. The observer function\n // closes over this variable, so it knows which string to remove when\n // the property changes.\n var oldClass;\n\n var observer, invoker;\n\n var parsedPath = Ember.View._parsePropertyPath(binding),\n path = parsedPath.path,\n pathRoot = context,\n normalized;\n\n if (path !== '' && path !== 'this') {\n normalized = normalizePath(context, path, options.data);\n\n pathRoot = normalized.root;\n path = normalized.path;\n }\n\n // Set up an observer on the context. If the property changes, toggle the\n // class name.\n /** @private */\n observer = function() {\n // Get the current value of the property\n newClass = classStringForPath(pathRoot, parsedPath, options);\n elem = bindAttrId ? view.$(\"[data-bindattr-\" + bindAttrId + \"='\" + bindAttrId + \"']\") : view.$();\n\n // If we can't find the element anymore, a parent template has been\n // re-rendered and we've been nuked. Remove the observer.\n if (elem.length === 0) {\n Ember.removeObserver(pathRoot, path, invoker);\n } else {\n // If we had previously added a class to the element, remove it.\n if (oldClass) {\n elem.removeClass(oldClass);\n }\n\n // If necessary, add a new class. Make sure we keep track of it so\n // it can be removed in the future.\n if (newClass) {\n elem.addClass(newClass);\n oldClass = newClass;\n } else {\n oldClass = null;\n }\n }\n };\n\n /** @private */\n invoker = function() {\n Ember.run.once(observer);\n };\n\n if (path !== '' && path !== 'this') {\n Ember.addObserver(pathRoot, path, invoker);\n }\n\n // We've already setup the observer; now we just need to figure out the\n // correct behavior right now on the first pass through.\n value = classStringForPath(pathRoot, parsedPath, options);\n\n if (value) {\n ret.push(value);\n\n // Make sure we save the current value so that it can be removed if the\n // observer fires.\n oldClass = value;\n }\n });\n\n return ret;\n};\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\n\n// TODO: Don't require the entire module\nvar get = Ember.get, set = Ember.set;\nvar PARENT_VIEW_PATH = /^parentView\\./;\nvar EmberHandlebars = Ember.Handlebars;\nvar VIEW_PRESERVES_CONTEXT = Ember.VIEW_PRESERVES_CONTEXT;\n\n/** @private */\nEmberHandlebars.ViewHelper = Ember.Object.create({\n\n propertiesFromHTMLOptions: function(options, thisContext) {\n var hash = options.hash, data = options.data;\n var extensions = {},\n classes = hash['class'],\n dup = false;\n\n if (hash.id) {\n extensions.elementId = hash.id;\n dup = true;\n }\n\n if (classes) {\n classes = classes.split(' ');\n extensions.classNames = classes;\n dup = true;\n }\n\n if (hash.classBinding) {\n extensions.classNameBindings = hash.classBinding.split(' ');\n dup = true;\n }\n\n if (hash.classNameBindings) {\n if (extensions.classNameBindings === undefined) extensions.classNameBindings = [];\n extensions.classNameBindings = extensions.classNameBindings.concat(hash.classNameBindings.split(' '));\n dup = true;\n }\n\n if (hash.attributeBindings) {\n Ember.assert(\"Setting 'attributeBindings' via Handlebars is not allowed. Please subclass Ember.View and set it there instead.\");\n extensions.attributeBindings = null;\n dup = true;\n }\n\n if (dup) {\n hash = Ember.$.extend({}, hash);\n delete hash.id;\n delete hash['class'];\n delete hash.classBinding;\n }\n\n // Set the proper context for all bindings passed to the helper. This applies to regular attribute bindings\n // as well as class name bindings. If the bindings are local, make them relative to the current context\n // instead of the view.\n var path;\n\n // Evaluate the context of regular attribute bindings:\n for (var prop in hash) {\n if (!hash.hasOwnProperty(prop)) { continue; }\n\n // Test if the property ends in \"Binding\"\n if (Ember.IS_BINDING.test(prop) && typeof hash[prop] === 'string') {\n path = this.contextualizeBindingPath(hash[prop], data);\n if (path) { hash[prop] = path; }\n }\n }\n\n // Evaluate the context of class name bindings:\n if (extensions.classNameBindings) {\n for (var b in extensions.classNameBindings) {\n var full = extensions.classNameBindings[b];\n if (typeof full === 'string') {\n // Contextualize the path of classNameBinding so this:\n //\n // classNameBinding=\"isGreen:green\"\n //\n // is converted to this:\n //\n // classNameBinding=\"bindingContext.isGreen:green\"\n var parsedPath = Ember.View._parsePropertyPath(full);\n path = this.contextualizeBindingPath(parsedPath.path, data);\n if (path) { extensions.classNameBindings[b] = path + parsedPath.classNames; }\n }\n }\n }\n\n // Make the current template context available to the view\n // for the bindings set up above.\n extensions.bindingContext = thisContext;\n\n return Ember.$.extend(hash, extensions);\n },\n\n // Transform bindings from the current context to a context that can be evaluated within the view.\n // Returns null if the path shouldn't be changed.\n //\n // TODO: consider the addition of a prefix that would allow this method to return `path`.\n contextualizeBindingPath: function(path, data) {\n var normalized = Ember.Handlebars.normalizePath(null, path, data);\n if (normalized.isKeyword) {\n return 'templateData.keywords.' + path;\n } else if (Ember.isGlobalPath(path)) {\n return null;\n } else if (path === 'this') {\n return 'bindingContext';\n } else {\n return 'bindingContext.' + path;\n }\n },\n\n helper: function(thisContext, path, options) {\n var inverse = options.inverse,\n data = options.data,\n view = data.view,\n fn = options.fn,\n hash = options.hash,\n newView;\n\n if ('string' === typeof path) {\n newView = EmberHandlebars.getPath(thisContext, path, options);\n Ember.assert(\"Unable to find view at path '\" + path + \"'\", !!newView);\n } else {\n newView = path;\n }\n\n Ember.assert(Ember.String.fmt('You must pass a view class to the #view helper, not %@ (%@)', [path, newView]), Ember.View.detect(newView));\n\n var viewOptions = this.propertiesFromHTMLOptions(options, thisContext);\n var currentView = data.view;\n viewOptions.templateData = options.data;\n\n if (fn) {\n Ember.assert(\"You cannot provide a template block if you also specified a templateName\", !get(viewOptions, 'templateName') && !get(newView.proto(), 'templateName'));\n viewOptions.template = fn;\n }\n\n // We only want to override the `_context` computed property if there is\n // no specified controller. See View#_context for more information.\n if (VIEW_PRESERVES_CONTEXT && !newView.proto().controller && !newView.proto().controllerBinding && !viewOptions.controller && !viewOptions.controllerBinding) {\n viewOptions._context = thisContext;\n }\n\n currentView.appendChild(newView, viewOptions);\n }\n});\n\n/**\n `{{view}}` inserts a new instance of `Ember.View` into a template passing its options\n to the `Ember.View`'s `create` method and using the supplied block as the view's own template.\n\n An empty `` and the following template:\n\n \n\n Will result in HTML structure:\n\n \n \n\n

\n A span:\n \n Hello.\n \n

\n \n\n ### parentView setting\n\n The `parentView` property of the new `Ember.View` instance created through `{{view}}`\n will be set to the `Ember.View` instance of the template where `{{view}}` was called.\n\n aView = Ember.View.create({\n template: Ember.Handlebars.compile(\"{{#view}} my parent: {{parentView.elementId}} {{/view}}\")\n })\n\n aView.appendTo('body')\n \n Will result in HTML structure:\n\n

\n my parent: ember1\n

\n\n ### Setting CSS id and class attributes\n\n The HTML `id` attribute can be set on the `{{view}}`'s resulting element with the `id` option.\n This option will _not_ be passed to `Ember.View.create`.\n\n \n\n Results in the following HTML structure:\n\n

\n \n hello.\n \n

\n\n The HTML `class` attribute can be set on the `{{view}}`'s resulting element with\n the `class` or `classNameBindings` options. The `class` option\n will directly set the CSS `class` attribute and will not be passed to\n `Ember.View.create`. `classNameBindings` will be passed to `create` and use\n `Ember.View`'s class name binding functionality:\n\n \n\n Results in the following HTML structure:\n\n

\n \n hello.\n \n

\n\n ### Supplying a different view class\n `{{view}}` can take an optional first argument before its supplied options to specify a\n path to a custom view class.\n\n \n\n The first argument can also be a relative path. Ember will search for the view class\n starting at the `Ember.View` of the template where `{{view}}` was used as the root object:\n\n MyApp = Ember.Application.create({})\n MyApp.OuterView = Ember.View.extend({\n innerViewClass: Ember.View.extend({\n classNames: ['a-custom-view-class-as-property']\n }),\n template: Ember.Handlebars.compile('{{#view \"innerViewClass\"}} hi {{/view}}')\n })\n\n MyApp.OuterView.create().appendTo('body')\n\nWill result in the following HTML:\n\n

\n hi\n

\n\n ### Blockless use\n\n If you supply a custom `Ember.View` subclass that specifies its own template\n or provide a `templateName` option to `{{view}}` it can be used without supplying a block.\n Attempts to use both a `templateName` option and supply a block will throw an error.\n\n \n\n ### viewName property\n\n You can supply a `viewName` option to `{{view}}`. The `Ember.View` instance will\n be referenced as a property of its parent view by this name.\n\n aView = Ember.View.create({\n template: Ember.Handlebars.compile('{{#view viewName=\"aChildByName\"}} hi {{/view}}')\n })\n\n aView.appendTo('body')\n aView.get('aChildByName') // the instance of Ember.View created by {{view}} helper\n\n @name Handlebars.helpers.view\n @param {String} path\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmberHandlebars.registerHelper('view', function(path, options) {\n Ember.assert(\"The view helper only takes a single argument\", arguments.length <= 2);\n\n // If no path is provided, treat path param as options.\n if (path && path.data && path.data.isRenderData) {\n options = path;\n path = \"Ember.View\";\n }\n\n return EmberHandlebars.ViewHelper.helper(this, path, options);\n});\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\n\n// TODO: Don't require all of this module\nvar get = Ember.get, getPath = Ember.Handlebars.getPath, fmt = Ember.String.fmt;\n\n/**\n `{{collection}}` is a `Ember.Handlebars` helper for adding instances of\n `Ember.CollectionView` to a template. See `Ember.CollectionView` for additional\n information on how a `CollectionView` functions.\n\n `{{collection}}`'s primary use is as a block helper with a `contentBinding` option\n pointing towards an `Ember.Array`-compatible object. An `Ember.View` instance will\n be created for each item in its `content` property. Each view will have its own\n `content` property set to the appropriate item in the collection.\n\n The provided block will be applied as the template for each item's view.\n\n Given an empty `` the following template:\n\n \n\n And the following application code\n\n App = Ember.Application.create()\n App.items = [\n Ember.Object.create({name: 'Dave'}),\n Ember.Object.create({name: 'Mary'}),\n Ember.Object.create({name: 'Sara'})\n ]\n\n Will result in the HTML structure below\n\n

Hi Dave

Hi Mary

Hi Sara

\n\n ### Blockless Use\n If you provide an `itemViewClass` option that has its own `template` you can omit\n the block.\n\n The following template:\n\n \n\n And application code\n\n App = Ember.Application.create()\n App.items = [\n Ember.Object.create({name: 'Dave'}),\n Ember.Object.create({name: 'Mary'}),\n Ember.Object.create({name: 'Sara'})\n ]\n\n App.AnItemView = Ember.View.extend({\n template: Ember.Handlebars.compile(\"Greetings {{content.name}}\")\n })\n\n Will result in the HTML structure below\n\n

Greetings Dave

Greetings Mary

Greetings Sara

\n\n ### Specifying a CollectionView subclass\n By default the `{{collection}}` helper will create an instance of `Ember.CollectionView`.\n You can supply a `Ember.CollectionView` subclass to the helper by passing it\n as the first argument:\n\n \n\n\n ### Forwarded `item.*`-named Options\n As with the `{{view}}`, helper options passed to the `{{collection}}` will be set on\n the resulting `Ember.CollectionView` as properties. Additionally, options prefixed with\n `item` will be applied to the views rendered for each item (note the camelcasing):\n\n \n\n Will result in the following HTML structure:\n\n

Howdy Dave

Howdy Mary

Howdy Sara

\n \n @name Handlebars.helpers.collection\n @param {String} path\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmber.Handlebars.registerHelper('collection', function(path, options) {\n // If no path is provided, treat path param as options.\n if (path && path.data && path.data.isRenderData) {\n options = path;\n path = undefined;\n Ember.assert(\"You cannot pass more than one argument to the collection helper\", arguments.length === 1);\n } else {\n Ember.assert(\"You cannot pass more than one argument to the collection helper\", arguments.length === 2);\n }\n\n var fn = options.fn;\n var data = options.data;\n var inverse = options.inverse;\n\n // If passed a path string, convert that into an object.\n // Otherwise, just default to the standard class.\n var collectionClass;\n collectionClass = path ? getPath(this, path, options) : Ember.CollectionView;\n Ember.assert(fmt(\"%@ #collection: Could not find collection class %@\", [data.view, path]), !!collectionClass);\n\n var hash = options.hash, itemHash = {}, match;\n\n // Extract item view class if provided else default to the standard class\n var itemViewClass, itemViewPath = hash.itemViewClass;\n var collectionPrototype = collectionClass.proto();\n delete hash.itemViewClass;\n itemViewClass = itemViewPath ? getPath(collectionPrototype, itemViewPath, options) : collectionPrototype.itemViewClass;\n Ember.assert(fmt(\"%@ #collection: Could not find itemViewClass %@\", [data.view, itemViewPath]), !!itemViewClass);\n\n // Go through options passed to the {{collection}} helper and extract options\n // that configure item views instead of the collection itself.\n for (var prop in hash) {\n if (hash.hasOwnProperty(prop)) {\n match = prop.match(/^item(.)(.*)$/);\n\n if(match) {\n // Convert itemShouldFoo -> shouldFoo\n itemHash[match[1].toLowerCase() + match[2]] = hash[prop];\n // Delete from hash as this will end up getting passed to the\n // {{view}} helper method.\n delete hash[prop];\n }\n }\n }\n\n var tagName = hash.tagName || collectionPrototype.tagName;\n\n if (fn) {\n itemHash.template = fn;\n delete options.fn;\n }\n\n var emptyViewClass;\n if (inverse && inverse !== Handlebars.VM.noop) {\n emptyViewClass = get(collectionPrototype, 'emptyViewClass');\n emptyViewClass = emptyViewClass.extend({\n template: inverse,\n tagName: itemHash.tagName\n });\n } else if (hash.emptyViewClass) {\n emptyViewClass = getPath(this, hash.emptyViewClass, options);\n }\n hash.emptyView = emptyViewClass;\n\n if (hash.eachHelper === 'each') {\n itemHash._context = Ember.computed(function() {\n return get(this, 'content');\n }).property('content');\n delete hash.eachHelper;\n }\n\n var viewOptions = Ember.Handlebars.ViewHelper.propertiesFromHTMLOptions({ data: data, hash: itemHash }, this);\n hash.itemViewClass = itemViewClass.extend(viewOptions);\n\n return Ember.Handlebars.helpers.view.call(this, collectionClass, options);\n});\n\n\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\nvar getPath = Ember.Handlebars.getPath;\n\n/**\n `unbound` allows you to output a property without binding. *Important:* The\n output will not be updated if the property changes. Use with caution.\n\n

\n\n @name Handlebars.helpers.unbound\n @param {String} property\n @returns {String} HTML string\n*/\nEmber.Handlebars.registerHelper('unbound', function(property, fn) {\n var context = (fn.contexts && fn.contexts[0]) || this;\n return getPath(context, property, fn);\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n/*jshint debug:true*/\nvar getPath = Ember.Handlebars.getPath, normalizePath = Ember.Handlebars.normalizePath;\n\n/**\n `log` allows you to output the value of a value in the current rendering\n context.\n\n {{log myVariable}}\n\n @name Handlebars.helpers.log\n @param {String} property\n*/\nEmber.Handlebars.registerHelper('log', function(property, options) {\n var context = (options.contexts && options.contexts[0]) || this,\n normalized = normalizePath(context, property, options.data),\n pathRoot = normalized.root,\n path = normalized.path,\n value = (path === 'this') ? pathRoot : getPath(pathRoot, path, options);\n Ember.Logger.log(value);\n});\n\n/**\n The `debugger` helper executes the `debugger` statement in the current\n context.\n\n {{debugger}}\n\n @name Handlebars.helpers.debugger\n @param {String} property\n*/\nEmber.Handlebars.registerHelper('debugger', function() {\n debugger;\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get, set = Ember.set;\n\nEmber.Handlebars.EachView = Ember.CollectionView.extend(Ember._Metamorph, {\n itemViewClass: Ember._MetamorphView,\n emptyViewClass: Ember._MetamorphView,\n\n createChildView: function(view, attrs) {\n view = this._super(view, attrs);\n\n // At the moment, if a container view subclass wants\n // to insert keywords, it is responsible for cloning\n // the keywords hash. This will be fixed momentarily.\n var keyword = get(this, 'keyword');\n\n if (keyword) {\n var data = get(view, 'templateData');\n\n data = Ember.copy(data);\n data.keywords = view.cloneKeywords();\n set(view, 'templateData', data);\n\n var content = get(view, 'content');\n\n // In this case, we do not bind, because the `content` of\n // a #each item cannot change.\n data.keywords[keyword] = content;\n }\n\n return view;\n }\n});\n\nEmber.Handlebars.registerHelper('each', function(path, options) {\n if (arguments.length === 4) {\n Ember.assert(\"If you pass more than one argument to the each helper, it must be in the form #each foo in bar\", arguments[1] === \"in\");\n\n var keywordName = arguments[0];\n\n options = arguments[3];\n path = arguments[2];\n if (path === '') { path = \"this\"; }\n\n options.hash.keyword = keywordName;\n } else {\n options.hash.eachHelper = 'each';\n }\n\n Ember.assert(\"You must pass a block to the each helper\", options.fn && options.fn !== Handlebars.VM.noop);\n\n options.hash.contentBinding = path;\n // Set up emptyView as a metamorph with no tag\n //options.hash.emptyViewClass = Ember._MetamorphView;\n\n return Ember.Handlebars.helpers.collection.call(this, 'Ember.Handlebars.EachView', options);\n});\n\n})();\n\n\n\n(function() {\n/**\n `template` allows you to render a template from inside another template.\n This allows you to re-use the same template in multiple places. For example:\n\n \n\n \n\n This helper looks for templates in the global Ember.TEMPLATES hash. If you\n add <script> tags to your page with the `data-template-name` attribute set,\n they will be compiled and placed in this hash automatically.\n\n You can also manually register templates by adding them to the hash:\n\n Ember.TEMPLATES[\"my_cool_template\"] = Ember.Handlebars.compile('{{user}}');\n\n @name Handlebars.helpers.template\n @param {String} templateName the template to render\n*/\n\nEmber.Handlebars.registerHelper('template', function(name, options) {\n var template = Ember.TEMPLATES[name];\n\n Ember.assert(\"Unable to find template with name '\"+name+\"'.\", !!template);\n\n Ember.TEMPLATES[name](this, { data: options.data });\n});\n\n})();\n\n\n\n(function() {\nvar EmberHandlebars = Ember.Handlebars, getPath = EmberHandlebars.getPath, get = Ember.get;\n\nvar ActionHelper = EmberHandlebars.ActionHelper = {\n registeredActions: {}\n};\n\nActionHelper.registerAction = function(actionName, eventName, target, view, context, link) {\n var actionId = (++Ember.$.uuid).toString();\n\n ActionHelper.registeredActions[actionId] = {\n eventName: eventName,\n handler: function(event) {\n if (link && (event.button !== 0 || event.shiftKey || event.metaKey || event.altKey || event.ctrlKey)) {\n // Allow the browser to handle special link clicks normally\n return;\n }\n\n event.preventDefault();\n\n event.view = view;\n event.context = context;\n\n // Check for StateManager (or compatible object)\n if (target.isState && typeof target.send === 'function') {\n return target.send(actionName, event);\n } else {\n Ember.assert(Ember.String.fmt('Target %@ does not have action %@', [target, actionName]), target[actionName]);\n return target[actionName].call(target, event);\n }\n }\n };\n\n view.on('willRerender', function() {\n delete ActionHelper.registeredActions[actionId];\n });\n\n return actionId;\n};\n\n/**\n The `{{action}}` helper registers an HTML element within a template for\n DOM event handling. User interaction with that element will call the method\n on the template's associated `Ember.View` instance that has the same name\n as the first provided argument to `{{action}}`:\n\n Given the following Handlebars template on the page\n\n \n\n And application code\n\n AView = Ember.View.extend({\n templateName; 'a-template',\n anActionName: function(event){}\n });\n\n aView = AView.create();\n aView.appendTo('body');\n\n Will results in the following rendered HTML\n\n

\n click me\n

\n\n Clicking \"click me\" will trigger the `anActionName` method of the `aView`\n object with a `jQuery.Event` object as its argument. The `jQuery.Event`\n object will be extended to include a `view` property that is set to the\n original view interacted with (in this case the `aView` object).\n\n ### Event Propagation\n\n Events triggered through the action helper will automatically have\n `.preventDefault()` called on them. You do not need to do so in your event\n handlers. To stop propagation of the event, simply return `false` from your\n handler.\n\n If you need the default handler to trigger you should either register your\n own event handler, or use event methods on your view class.\n\n ### Specifying an Action Target\n\n A `target` option can be provided to change which object will receive the\n method call. This option must be a string representing a path to an object:\n\n \n\n Clicking \"click me\" in the rendered HTML of the above template will trigger\n the `anActionName` method of the object at `MyApplication.someObject`.\n The first argument to this method will be a `jQuery.Event` extended to\n include a `view` property that is set to the original view interacted with.\n\n A path relative to the template's `Ember.View` instance can also be used as\n a target:\n\n \n\n Clicking \"click me\" in the rendered HTML of the above template will trigger\n the `anActionName` method of the view's parent view.\n\n The `{{action}}` helper is `Ember.StateManager` aware. If the target of the\n action is an `Ember.StateManager` instance `{{action}}` will use the `send`\n functionality of StateManagers. The documentation for `Ember.StateManager`\n has additional information about this use.\n\n If an action's target does not implement a method that matches the supplied\n action name an error will be thrown.\n\n \n\n With the following application code\n\n AView = Ember.View.extend({\n templateName; 'a-template',\n // note: no method 'aMethodNameThatIsMissing'\n anActionName: function(event){}\n });\n\n aView = AView.create();\n aView.appendTo('body');\n\n Will throw `Uncaught TypeError: Cannot call method 'call' of undefined` when\n \"click me\" is clicked.\n\n ### Specifying DOM event type\n\n By default the `{{action}}` helper registers for DOM `click` events. You can\n supply an `on` option to the helper to specify a different DOM event name:\n\n \n\n See `Ember.EventDispatcher` for a list of acceptable DOM event names.\n\n Because `{{action}}` depends on Ember's event dispatch system it will only\n function if an `Ember.EventDispatcher` instance is available. An\n `Ember.EventDispatcher` instance will be created when a new\n `Ember.Application` is created. Having an instance of `Ember.Application`\n will satisfy this requirement.\n\n ### Specifying a context\n\n By default the `{{action}}` helper passes the current Handlebars context\n along in the `jQuery.Event` object. You may specify an alternative object to\n pass as the context by providing a property path:\n\n \n\n @name Handlebars.helpers.action\n @param {String} actionName\n @param {Hash} options\n*/\nEmberHandlebars.registerHelper('action', function(actionName, options) {\n var hash = options.hash,\n eventName = hash.on || \"click\",\n view = options.data.view,\n target, context, controller, link;\n\n view = get(view, 'concreteView');\n\n if (hash.target) {\n target = getPath(this, hash.target, options);\n } else if (controller = options.data.keywords.controller) {\n target = get(controller, 'target');\n }\n\n target = target || view;\n\n context = hash.context ? getPath(this, hash.context, options) : options.contexts[0];\n\n var output = [], url;\n\n if (hash.href && target.urlForEvent) {\n url = target.urlForEvent(actionName, context);\n output.push('href=\"' + url + '\"');\n link = true;\n }\n\n var actionId = ActionHelper.registerAction(actionName, eventName, target, view, context, link);\n output.push('data-ember-action=\"' + actionId + '\"');\n\n return new EmberHandlebars.SafeString(output.join(\" \"));\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get, set = Ember.set;\n\n/**\n\n When used in a Handlebars template that is assigned to an `Ember.View` instance's\n `layout` property Ember will render the layout template first, inserting the view's\n own rendered output at the `{{ yield }}` location.\n\n An empty `` and the following application code:\n\n AView = Ember.View.extend({\n classNames: ['a-view-with-layout'],\n layout: Ember.Handlebars.compile('

'),\n template: Ember.Handlebars.compile('I am wrapped')\n })\n\n aView = AView.create()\n aView.appendTo('body')\n\n Will result in the following HTML output:\n\n \n

\n I am wrapped\n

\n \n\n The yield helper cannot be used outside of a template assigned to an `Ember.View`'s `layout` property\n and will throw an error if attempted.\n\n BView = Ember.View.extend({\n classNames: ['a-view-with-layout'],\n template: Ember.Handlebars.compile('{{yield}}')\n })\n\n bView = BView.create()\n bView.appendTo('body')\n\n // throws\n // Uncaught Error: assertion failed: You called yield in a template that was not a layout\n\n @name Handlebars.helpers.yield\n @param {Hash} options\n @returns {String} HTML string\n*/\nEmber.Handlebars.registerHelper('yield', function(options) {\n var view = options.data.view, template;\n\n while (view && !get(view, 'layout')) {\n view = get(view, 'parentView');\n }\n\n Ember.assert(\"You called yield in a template that was not a layout\", !!view);\n\n template = get(view, 'template');\n\n if (template) { template(this, options); }\n});\n\n})();\n\n\n\n(function() {\n/**\n The `outlet` helper allows you to specify that the current\n view's controller will fill in the view for a given area.\n\n {{outlet}}\n\n By default, when the the current controller's `view`\n property changes, the outlet will replace its current\n view with the new view.\n\n controller.set('view', someView);\n\n You can also specify a particular name, other than view:\n\n {{outlet masterView}}\n {{outlet detailView}}\n\n Then, you can control several outlets from a single\n controller:\n\n controller.set('masterView', postsView);\n controller.set('detailView', postView);\n\n @name Handlebars.helpers.outlet\n @param {String} property the property on the controller\n that holds the view for this outlet\n*/\nEmber.Handlebars.registerHelper('outlet', function(property, options) {\n if (property && property.data && property.data.isRenderData) {\n options = property;\n property = 'view';\n }\n\n options.hash.currentViewBinding = \"controller.\" + property;\n\n return Ember.Handlebars.helpers.view.call(this, Ember.ContainerView, options);\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar set = Ember.set, get = Ember.get;\n\n/**\n @class\n\n Creates an HTML input of type 'checkbox' with HTML related properties \n applied directly to the input.\n\n {{view Ember.Checkbox classNames=\"applicaton-specific-checkbox\"}}\n\n \n\n You can add a `label` tag yourself in the template where the Ember.Checkbox is being used.\n\n \n Some Title\n {{view Ember.Checkbox classNames=\"applicaton-specific-checkbox\"}}\n \n\n\n The `checked` attribute of an Ember.Checkbox object should always be set\n through the Ember object or by interacting with its rendered element representation\n via the mouse, keyboard, or touch. Updating the value of the checkbox via jQuery will\n result in the checked value of the object and its element losing synchronization.\n \n ## Layout and LayoutName properties\n Because HTML `input` elements are self closing `layout` and `layoutName` properties will\n not be applied. See `Ember.View`'s layout section for more information.\n\n*/\nEmber.Checkbox = Ember.View.extend({\n classNames: ['ember-checkbox'],\n\n tagName: 'input',\n\n attributeBindings: ['type', 'checked', 'disabled', 'tabindex'],\n\n type: \"checkbox\",\n checked: false,\n disabled: false,\n\n init: function() {\n this._super();\n this.on(\"change\", this, this._updateElementValue);\n },\n\n /**\n @private\n */\n _updateElementValue: function() {\n set(this, 'checked', this.$().prop('checked'));\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set;\n\n/** @class */\nEmber.TextSupport = Ember.Mixin.create(\n/** @scope Ember.TextSupport.prototype */ {\n\n value: \"\",\n\n attributeBindings: ['placeholder', 'disabled', 'maxlength', 'tabindex'],\n placeholder: null,\n disabled: false,\n maxlength: null,\n\n insertNewline: Ember.K,\n cancel: Ember.K,\n\n init: function() {\n this._super();\n this.on(\"focusOut\", this, this._elementValueDidChange);\n this.on(\"change\", this, this._elementValueDidChange);\n this.on(\"keyUp\", this, this.interpretKeyEvents);\n },\n\n /**\n @private\n */\n interpretKeyEvents: function(event) {\n var map = Ember.TextSupport.KEY_EVENTS;\n var method = map[event.keyCode];\n\n this._elementValueDidChange();\n if (method) { return this[method](event); }\n },\n\n _elementValueDidChange: function() {\n set(this, 'value', this.$().val());\n }\n\n});\n\nEmber.TextSupport.KEY_EVENTS = {\n 13: 'insertNewline',\n 27: 'cancel'\n};\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set;\n\n/**\n @class\n\n The `Ember.TextField` view class renders a text\n [input](https://developer.mozilla.org/en/HTML/Element/Input) element. It\n allows for binding Ember properties to the text field contents (`value`),\n live-updating as the user inputs text.\n\n Example:\n\n {{view Ember.TextField valueBinding=\"firstName\"}}\n\n ## Layout and LayoutName properties\n Because HTML `input` elements are self closing `layout` and `layoutName` properties will\n not be applied. See `Ember.View`'s layout section for more information.\n \n @extends Ember.TextSupport\n*/\nEmber.TextField = Ember.View.extend(Ember.TextSupport,\n /** @scope Ember.TextField.prototype */ {\n\n classNames: ['ember-text-field'],\n tagName: \"input\",\n attributeBindings: ['type', 'value', 'size'],\n\n /**\n The value attribute of the input element. As the user inputs text, this\n property is updated live.\n\n @type String\n @default \"\"\n */\n value: \"\",\n\n /**\n The type attribute of the input element.\n\n @type String\n @default \"text\"\n */\n type: \"text\",\n\n /**\n The size of the text field in characters.\n\n @type String\n @default null\n */\n size: null\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set;\n\nEmber.Button = Ember.View.extend(Ember.TargetActionSupport, {\n classNames: ['ember-button'],\n classNameBindings: ['isActive'],\n\n tagName: 'button',\n\n propagateEvents: false,\n\n attributeBindings: ['type', 'disabled', 'href', 'tabindex'],\n\n /** @private\n Overrides TargetActionSupport's targetObject computed\n property to use Handlebars-specific path resolution.\n */\n targetObject: Ember.computed(function() {\n var target = get(this, 'target'),\n root = get(this, 'context'),\n data = get(this, 'templateData');\n\n if (typeof target !== 'string') { return target; }\n\n return Ember.Handlebars.getPath(root, target, { data: data });\n }).property('target').cacheable(),\n\n // Defaults to 'button' if tagName is 'input' or 'button'\n type: Ember.computed(function(key, value) {\n var tagName = this.get('tagName');\n if (value !== undefined) { this._type = value; }\n if (this._type !== undefined) { return this._type; }\n if (tagName === 'input' || tagName === 'button') { return 'button'; }\n }).property('tagName').cacheable(),\n\n disabled: false,\n\n // Allow 'a' tags to act like buttons\n href: Ember.computed(function() {\n return this.get('tagName') === 'a' ? '#' : null;\n }).property('tagName').cacheable(),\n\n mouseDown: function() {\n if (!get(this, 'disabled')) {\n set(this, 'isActive', true);\n this._mouseDown = true;\n this._mouseEntered = true;\n }\n return get(this, 'propagateEvents');\n },\n\n mouseLeave: function() {\n if (this._mouseDown) {\n set(this, 'isActive', false);\n this._mouseEntered = false;\n }\n },\n\n mouseEnter: function() {\n if (this._mouseDown) {\n set(this, 'isActive', true);\n this._mouseEntered = true;\n }\n },\n\n mouseUp: function(event) {\n if (get(this, 'isActive')) {\n // Actually invoke the button's target and action.\n // This method comes from the Ember.TargetActionSupport mixin.\n this.triggerAction();\n set(this, 'isActive', false);\n }\n\n this._mouseDown = false;\n this._mouseEntered = false;\n return get(this, 'propagateEvents');\n },\n\n keyDown: function(event) {\n // Handle space or enter\n if (event.keyCode === 13 || event.keyCode === 32) {\n this.mouseDown();\n }\n },\n\n keyUp: function(event) {\n // Handle space or enter\n if (event.keyCode === 13 || event.keyCode === 32) {\n this.mouseUp();\n }\n },\n\n // TODO: Handle proper touch behavior. Including should make inactive when\n // finger moves more than 20x outside of the edge of the button (vs mouse\n // which goes inactive as soon as mouse goes out of edges.)\n\n touchStart: function(touch) {\n return this.mouseDown(touch);\n },\n\n touchEnd: function(touch) {\n return this.mouseUp(touch);\n },\n\n init: function() {\n Ember.deprecate(\"Ember.Button is deprecated and will be removed from future releases. Consider using the `{{action}}` helper.\");\n this._super();\n }\n});\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\nvar get = Ember.get, set = Ember.set;\n\n/**\n @class\n\n The `Ember.TextArea` view class renders a\n [textarea](https://developer.mozilla.org/en/HTML/Element/textarea) element.\n It allows for binding Ember properties to the text area contents (`value`),\n live-updating as the user inputs text.\n\n ## Layout and LayoutName properties\n\n Because HTML `textarea` elements do not contain inner HTML the `layout` and `layoutName` \n properties will not be applied. See `Ember.View`'s layout section for more information.\n\n @extends Ember.TextSupport\n*/\nEmber.TextArea = Ember.View.extend(Ember.TextSupport,\n/** @scope Ember.TextArea.prototype */ {\n\n classNames: ['ember-text-area'],\n\n tagName: \"textarea\",\n attributeBindings: ['rows', 'cols'],\n rows: null,\n cols: null,\n\n _updateElementValue: Ember.observer(function() {\n // We do this check so cursor position doesn't get affected in IE\n var value = get(this, 'value');\n if (value !== this.$().val()) {\n this.$().val(value);\n }\n }, 'value'),\n\n init: function() {\n this._super();\n this.on(\"didInsertElement\", this, this._updateElementValue);\n }\n\n});\n\n})();\n\n\n\n(function() {\nEmber.TabContainerView = Ember.View.extend({\n init: function() {\n Ember.deprecate(\"Ember.TabContainerView is deprecated and will be removed from future releases.\");\n this._super();\n }\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get;\n\nEmber.TabPaneView = Ember.View.extend({\n tabsContainer: Ember.computed(function() {\n return this.nearestInstanceOf(Ember.TabContainerView);\n }).property().volatile(),\n\n isVisible: Ember.computed(function() {\n return get(this, 'viewName') === get(this, 'tabsContainer.currentView');\n }).property('tabsContainer.currentView').volatile(),\n\n init: function() {\n Ember.deprecate(\"Ember.TabPaneView is deprecated and will be removed from future releases.\");\n this._super();\n }\n});\n\n})();\n\n\n\n(function() {\nvar get = Ember.get, setPath = Ember.setPath;\n\nEmber.TabView = Ember.View.extend({\n tabsContainer: Ember.computed(function() {\n return this.nearestInstanceOf(Ember.TabContainerView);\n }).property().volatile(),\n\n mouseUp: function() {\n setPath(this, 'tabsContainer.currentView', get(this, 'value'));\n },\n\n init: function() {\n Ember.deprecate(\"Ember.TabView is deprecated and will be removed from future releases.\");\n this._super();\n }\n});\n\n})();\n\n\n\n(function() {\n\n})();\n\n\n\n(function() {\n/*jshint eqeqeq:false */\n\nvar set = Ember.set, get = Ember.get;\nvar indexOf = Ember.EnumerableUtils.indexOf, indexesOf = Ember.EnumerableUtils.indexesOf;\n\n/**\n @class\n\n The Ember.Select view class renders a\n [select](https://developer.mozilla.org/en/HTML/Element/select) HTML element,\n allowing the user to choose from a list of options. The selected option(s)\n are updated live in the `selection` property, while the corresponding value\n is updated in the `value` property.\n\n ### Using Strings\n The simplest version of an Ember.Select takes an array of strings for the options\n of a select box and a valueBinding to set the value.\n\n Example:\n\n App.controller = Ember.Object.create({\n selected: null,\n content: [\n \"Yehuda\",\n \"Tom\"\n ]\n })\n\n {{view Ember.Select\n contentBinding=\"App.controller.content\"\n valueBinding=\"App.controller.selected\"\n }}\n\n Would result in the following HTML:\n\n \n\n Selecting Yehuda from the select box will set `App.controller.selected` to \"Yehuda\"\n\n ### Using Objects\n An Ember.Select can also take an array of JS or Ember objects.\n\n When using objects you need to supply optionLabelPath and optionValuePath parameters\n which will be used to get the label and value for each of the options.\n\n Usually you will bind to either the selection or the value attribute of the select.\n\n Use selectionBinding if you would like to set the whole object as a property on the target.\n Use valueBinding if you would like to set just the value.\n\n Example using selectionBinding:\n\n App.controller = Ember.Object.create({\n selectedPerson: null,\n selectedPersonId: null,\n content: [\n Ember.Object.create({firstName: \"Yehuda\", id: 1}),\n Ember.Object.create({firstName: \"Tom\", id: 2})\n ]\n })\n\n {{view Ember.Select\n contentBinding=\"App.controller.content\"\n optionLabelPath=\"content.firstName\"\n optionValuePath=\"content.id\"\n selectionBinding=\"App.controller.selectedPerson\"\n prompt=\"Please Select\"}}\n\n \n\n Selecting Yehuda here will set `App.controller.selectedPerson` to\n the Yehuda object.\n\n Example using valueBinding:\n\n {{view Ember.Select\n contentBinding=\"App.controller.content\"\n optionLabelPath=\"content.firstName\"\n optionValuePath=\"content.id\"\n valueBinding=\"App.controller.selectedPersonId\"\n prompt=\"Please Select\"}}\n\n Selecting Yehuda in this case will set `App.controller.selectedPersonId` to 1.\n\n @extends Ember.View\n*/\nEmber.Select = Ember.View.extend(\n /** @scope Ember.Select.prototype */ {\n\n tagName: 'select',\n classNames: ['ember-select'],\n defaultTemplate: Ember.Handlebars.compile('{{#if view.prompt}}{{/if}}{{#each view.content}}{{view Ember.SelectOption contentBinding=\"this\"}}{{/each}}'),\n attributeBindings: ['multiple', 'tabindex'],\n\n /**\n The `multiple` attribute of the select element. Indicates whether multiple\n options can be selected.\n\n @type Boolean\n @default false\n */\n multiple: false,\n\n /**\n The list of options.\n\n If `optionLabelPath` and `optionValuePath` are not overridden, this should\n be a list of strings, which will serve simultaneously as labels and values.\n\n Otherwise, this should be a list of objects. For instance:\n\n content: Ember.A([\n { id: 1, firstName: 'Yehuda' },\n { id: 2, firstName: 'Tom' }\n ]),\n optionLabelPath: 'content.firstName',\n optionValuePath: 'content.id'\n\n @type Array\n @default null\n */\n content: null,\n\n /**\n When `multiple` is false, the element of `content` that is currently\n selected, if any.\n\n When `multiple` is true, an array of such elements.\n\n @type Object or Array\n @default null\n */\n selection: null,\n\n /**\n In single selection mode (when `multiple` is false), value can be used to get\n the current selection's value or set the selection by it's value.\n\n It is not currently supported in multiple selection mode.\n\n @type String\n @default null\n */\n value: Ember.computed(function(key, value) {\n if (arguments.length === 2) { return value; }\n\n var valuePath = get(this, 'optionValuePath').replace(/^content\\.?/, '');\n return valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection');\n }).property('selection').cacheable(),\n\n /**\n If given, a top-most dummy option will be rendered to serve as a user\n prompt.\n\n @type String\n @default null\n */\n prompt: null,\n\n /**\n The path of the option labels. See `content`.\n\n @type String\n @default 'content'\n */\n optionLabelPath: 'content',\n\n /**\n The path of the option values. See `content`.\n\n @type String\n @default 'content'\n */\n optionValuePath: 'content',\n\n _change: function() {\n if (get(this, 'multiple')) {\n this._changeMultiple();\n } else {\n this._changeSingle();\n }\n },\n\n selectionDidChange: Ember.observer(function() {\n var selection = get(this, 'selection'),\n isArray = Ember.isArray(selection);\n if (get(this, 'multiple')) {\n if (!isArray) {\n set(this, 'selection', Ember.A([selection]));\n return;\n }\n this._selectionDidChangeMultiple();\n } else {\n this._selectionDidChangeSingle();\n }\n }, 'selection'),\n\n valueDidChange: Ember.observer(function() {\n var content = get(this, 'content'),\n value = get(this, 'value'),\n valuePath = get(this, 'optionValuePath').replace(/^content\\.?/, ''),\n selectedValue = (valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection')),\n selection;\n\n if (value !== selectedValue) {\n selection = content.find(function(obj) {\n return value === (valuePath ? get(obj, valuePath) : obj);\n });\n\n this.set('selection', selection);\n }\n }, 'value'),\n\n\n _triggerChange: function() {\n var selection = get(this, 'selection');\n\n if (selection) { this.selectionDidChange(); }\n\n this._change();\n },\n\n _changeSingle: function() {\n var selectedIndex = this.$()[0].selectedIndex,\n content = get(this, 'content'),\n prompt = get(this, 'prompt');\n\n if (!content) { return; }\n if (prompt && selectedIndex === 0) { set(this, 'selection', null); return; }\n\n if (prompt) { selectedIndex -= 1; }\n set(this, 'selection', content.objectAt(selectedIndex));\n },\n\n _changeMultiple: function() {\n var options = this.$('option:selected'),\n prompt = get(this, 'prompt'),\n offset = prompt ? 1 : 0,\n content = get(this, 'content');\n\n if (!content){ return; }\n if (options) {\n var selectedIndexes = options.map(function(){\n return this.index - offset;\n }).toArray();\n set(this, 'selection', content.objectsAt(selectedIndexes));\n }\n },\n\n _selectionDidChangeSingle: function() {\n var el = this.$()[0],\n content = get(this, 'content'),\n selection = get(this, 'selection'),\n selectionIndex = content ? indexOf(content, selection) : -1,\n prompt = get(this, 'prompt');\n\n if (prompt) { selectionIndex += 1; }\n if (el) { el.selectedIndex = selectionIndex; }\n },\n\n _selectionDidChangeMultiple: function() {\n var content = get(this, 'content'),\n selection = get(this, 'selection'),\n selectedIndexes = content ? indexesOf(content, selection) : [-1],\n prompt = get(this, 'prompt'),\n offset = prompt ? 1 : 0,\n options = this.$('option'),\n adjusted;\n\n if (options) {\n options.each(function() {\n adjusted = this.index > -1 ? this.index + offset : -1;\n this.selected = indexOf(selectedIndexes, adjusted) > -1;\n });\n }\n },\n\n init: function() {\n this._super();\n this.on(\"didInsertElement\", this, this._triggerChange);\n this.on(\"change\", this, this._change);\n }\n});\n\nEmber.SelectOption = Ember.View.extend({\n tagName: 'option',\n attributeBindings: ['value', 'selected'],\n\n defaultTemplate: function(context, options) {\n options = { data: options.data, hash: {} };\n Ember.Handlebars.helpers.bind.call(context, \"view.label\", options);\n },\n\n init: function() {\n this.labelPathDidChange();\n this.valuePathDidChange();\n\n this._super();\n },\n\n selected: Ember.computed(function() {\n var content = get(this, 'content'),\n selection = get(this, 'parentView.selection');\n if (get(this, 'parentView.multiple')) {\n return selection && indexOf(selection, content) > -1;\n } else {\n // Primitives get passed through bindings as objects... since\n // `new Number(4) !== 4`, we use `==` below\n return content == selection;\n }\n }).property('content', 'parentView.selection').volatile(),\n\n labelPathDidChange: Ember.observer(function() {\n var labelPath = get(this, 'parentView.optionLabelPath');\n\n if (!labelPath) { return; }\n\n Ember.defineProperty(this, 'label', Ember.computed(function() {\n return get(this, labelPath);\n }).property(labelPath).cacheable());\n }, 'parentView.optionLabelPath'),\n\n valuePathDidChange: Ember.observer(function() {\n var valuePath = get(this, 'parentView.optionValuePath');\n\n if (!valuePath) { return; }\n\n Ember.defineProperty(this, 'value', Ember.computed(function() {\n return get(this, valuePath);\n }).property(valuePath).cacheable());\n }, 'parentView.optionValuePath')\n});\n\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n/*globals Handlebars */\n// Find templates stored in the head tag as script tags and make them available\n// to Ember.CoreView in the global Ember.TEMPLATES object. This will be run as as\n// jQuery DOM-ready callback.\n//\n// Script tags with \"text/x-handlebars\" will be compiled\n// with Ember's Handlebars and are suitable for use as a view's template.\n// Those with type=\"text/x-raw-handlebars\" will be compiled with regular\n// Handlebars and are suitable for use in views' computed properties.\nEmber.Handlebars.bootstrap = function(ctx) {\n var selectors = 'script[type=\"text/x-handlebars\"], script[type=\"text/x-raw-handlebars\"]';\n\n Ember.$(selectors, ctx)\n .each(function() {\n // Get a reference to the script tag\n var script = Ember.$(this),\n type = script.attr('type');\n\n var compile = (script.attr('type') === 'text/x-raw-handlebars') ?\n Ember.$.proxy(Handlebars.compile, Handlebars) :\n Ember.$.proxy(Ember.Handlebars.compile, Ember.Handlebars),\n // Get the name of the script, used by Ember.View's templateName property.\n // First look for data-template-name attribute, then fall back to its\n // id if no name is found.\n templateName = script.attr('data-template-name') || script.attr('id'),\n template = compile(script.html()),\n view, viewPath, elementId, options;\n\n if (templateName) {\n // For templates which have a name, we save them and then remove them from the DOM\n Ember.TEMPLATES[templateName] = template;\n\n // Remove script tag from DOM\n script.remove();\n } else {\n if (script.parents('head').length !== 0) {\n // don't allow inline templates in the head\n throw new Ember.Error(\"Template found in without a name specified. \" +\n \"Please provide a data-template-name attribute.\\n\" +\n script.html());\n }\n\n // For templates which will be evaluated inline in the HTML document, instantiates a new\n // view, and replaces the script tag holding the template with the new\n // view's DOM representation.\n //\n // Users can optionally specify a custom view subclass to use by setting the\n // data-view attribute of the script tag.\n viewPath = script.attr('data-view');\n view = viewPath ? Ember.get(viewPath) : Ember.View;\n\n // Get the id of the script, used by Ember.View's elementId property,\n // Look for data-element-id attribute.\n elementId = script.attr('data-element-id');\n\n options = { template: template };\n if (elementId) { options.elementId = elementId; }\n\n view = view.create(options);\n\n view._insertElementLater(function() {\n script.replaceWith(this.$());\n\n // Avoid memory leak in IE\n script = null;\n });\n }\n });\n};\n\nfunction bootstrap() {\n Ember.Handlebars.bootstrap( Ember.$(document) );\n}\n\n/*\n We tie this to application.load to ensure that we've at least\n attempted to bootstrap at the point that the application is loaded.\n\n We also tie this to document ready since we're guaranteed that all\n the inline templates are present at this point.\n\n There's no harm to running this twice, since we remove the templates\n from the DOM after processing.\n*/\n\nEmber.$(document).ready(bootstrap);\nEmber.onLoad('application', bootstrap);\n\n})();\n\n\n\n(function() {\n// ==========================================================================\n// Project: Ember Handlebars Views\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n// Version: v0.9.8.1-659-g396c08b\n// Last commit: 396c08b (2012-07-22 10:18:55 -0400)\n\n\n(function() {\n// ==========================================================================\n// Project: Ember\n// Copyright: ©2011 Strobe Inc. and contributors.\n// License: Licensed under MIT license (see license.js)\n// ==========================================================================\n\n})();\n\n\n})();\n//@ sourceURL=ember");

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