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-</span></span> * @class Ext.app.Controller
- * @constructor
- *
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+ <pre class="prettyprint lang-js"><span id='Ext-app-Controller'>/**
+</span> * @class Ext.app.Controller
+ *
* Controllers are the glue that binds an application together. All they really do is listen for events (usually from
* views) and take some action. Here's how we might create a Controller to manage Users:
- *
+ *
* Ext.define('MyApp.controller.Users', {
* extend: 'Ext.app.Controller',
- *
+ *
* init: function() {
* console.log('Initialized Users! This happens before the Application launch function is called');
* }
* });
- *
- * The init function is a special method that is called when your application boots. It is called before the
+ *
+ * The init function is a special method that is called when your application boots. It is called before the
* {@link Ext.app.Application Application}'s launch function is executed so gives a hook point to run any code before
* your Viewport is created.
- *
- * The init function is a great place to set up how your controller interacts with the view, and is usually used in
- * conjunction with another Controller function - {@link Ext.app.Controller#control control}. The control function
+ *
+ * The init function is a great place to set up how your controller interacts with the view, and is usually used in
+ * conjunction with another Controller function - {@link Ext.app.Controller#control control}. The control function
* makes it easy to listen to events on your view classes and take some action with a handler function. Let's update
* our Users controller to tell us when the panel is rendered:
- *
+ *
* Ext.define('MyApp.controller.Users', {
* extend: 'Ext.app.Controller',
- *
+ *
* init: function() {
* this.control({
* 'viewport > panel': {
* }
* });
* },
- *
+ *
* onPanelRendered: function() {
* console.log('The panel was rendered');
* }
* });
- *
+ *
* We've updated the init function to use this.control to set up listeners on views in our application. The control
* function uses the new ComponentQuery engine to quickly and easily get references to components on the page. If you
- * are not familiar with ComponentQuery yet, be sure to check out THIS GUIDE for a full explanation. In brief though,
+ * are not familiar with ComponentQuery yet, be sure to check out the {@link Ext.ComponentQuery documentation}. In brief though,
* it allows us to pass a CSS-like selector that will find every matching component on the page.
- *
+ *
* In our init function above we supplied 'viewport > panel', which translates to "find me every Panel that is a direct
- * child of a Viewport". We then supplied an object that maps event names (just 'render' in this case) to handler
- * functions. The overall effect is that whenever any component that matches our selector fires a 'render' event, our
+ * child of a Viewport". We then supplied an object that maps event names (just 'render' in this case) to handler
+ * functions. The overall effect is that whenever any component that matches our selector fires a 'render' event, our
* onPanelRendered function is called.
- *
+ *
* <u>Using refs</u>
- *
+ *
* One of the most useful parts of Controllers is the new ref system. These use the new {@link Ext.ComponentQuery} to
* make it really easy to get references to Views on your page. Let's look at an example of this now:
- *
- * Ext.define('MyApp.controller.Users', {
- extend: 'Ext.app.Controller',
-
- refs: [
- {
- ref: 'list',
- selector: 'grid'
- }
- ],
-
- init: function() {
- this.control({
- 'button': {
- click: this.refreshGrid
- }
- });
- },
-
- refreshGrid: function() {
- this.getList().store.load();
- }
- });
- *
- * This example assumes the existence of a {@link Ext.grid.Panel Grid} on the page, which contains a single button to
- * refresh the Grid when clicked. In our refs array, we set up a reference to the grid. There are two parts to this -
+ *
+ * Ext.define('MyApp.controller.Users', {
+ * extend: 'Ext.app.Controller',
+ *
+ * refs: [
+ * {
+ * ref: 'list',
+ * selector: 'grid'
+ * }
+ * ],
+ *
+ * init: function() {
+ * this.control({
+ * 'button': {
+ * click: this.refreshGrid
+ * }
+ * });
+ * },
+ *
+ * refreshGrid: function() {
+ * this.getList().store.load();
+ * }
+ * });
+ *
+ * This example assumes the existence of a {@link Ext.grid.Panel Grid} on the page, which contains a single button to
+ * refresh the Grid when clicked. In our refs array, we set up a reference to the grid. There are two parts to this -
* the 'selector', which is a {@link Ext.ComponentQuery ComponentQuery} selector which finds any grid on the page and
* assigns it to the reference 'list'.
- *
+ *
* By giving the reference a name, we get a number of things for free. The first is the getList function that we use in
- * the refreshGrid method above. This is generated automatically by the Controller based on the name of our ref, which
+ * the refreshGrid method above. This is generated automatically by the Controller based on the name of our ref, which
* was capitalized and prepended with get to go from 'list' to 'getList'.
- *
+ *
* The way this works is that the first time getList is called by your code, the ComponentQuery selector is run and the
- * first component that matches the selector ('grid' in this case) will be returned. All future calls to getList will
+ * first component that matches the selector ('grid' in this case) will be returned. All future calls to getList will
* use a cached reference to that grid. Usually it is advised to use a specific ComponentQuery selector that will only
* match a single View in your application (in the case above our selector will match any grid on the page).
- *
+ *
* Bringing it all together, our init function is called when the application boots, at which time we call this.control
- * to listen to any click on a {@link Ext.button.Button button} and call our refreshGrid function (again, this will
+ * to listen to any click on a {@link Ext.button.Button button} and call our refreshGrid function (again, this will
* match any button on the page so we advise a more specific selector than just 'button', but have left it this way for
* simplicity). When the button is clicked we use out getList function to refresh the grid.
- *
- * You can create any number of refs and control any number of components this way, simply adding more functions to
- * your Controller as you go. For an example of real-world usage of Controllers see the Feed Viewer example in the
+ *
+ * You can create any number of refs and control any number of components this way, simply adding more functions to
+ * your Controller as you go. For an example of real-world usage of Controllers see the Feed Viewer example in the
* examples/app/feed-viewer folder in the SDK download.
- *
+ *
* <u>Generated getter methods</u>
- *
- * Refs aren't the only thing that generate convenient getter methods. Controllers often have to deal with Models and
+ *
+ * Refs aren't the only thing that generate convenient getter methods. Controllers often have to deal with Models and
* Stores so the framework offers a couple of easy ways to get access to those too. Let's look at another example:
- *
- * Ext.define('MyApp.controller.Users', {
- extend: 'Ext.app.Controller',
-
- models: ['User'],
- stores: ['AllUsers', 'AdminUsers'],
-
- init: function() {
- var User = this.getUserModel(),
- allUsers = this.getAllUsersStore();
-
- var ed = new User({name: 'Ed'});
- allUsers.add(ed);
- }
- });
- *
+ *
+ * Ext.define('MyApp.controller.Users', {
+ * extend: 'Ext.app.Controller',
+ *
+ * models: ['User'],
+ * stores: ['AllUsers', 'AdminUsers'],
+ *
+ * init: function() {
+ * var User = this.getUserModel(),
+ * allUsers = this.getAllUsersStore();
+ *
+ * var ed = new User({name: 'Ed'});
+ * allUsers.add(ed);
+ * }
+ * });
+ *
* By specifying Models and Stores that the Controller cares about, it again dynamically loads them from the appropriate
- * locations (app/model/User.js, app/store/AllUsers.js and app/store/AdminUsers.js in this case) and creates getter
+ * locations (app/model/User.js, app/store/AllUsers.js and app/store/AdminUsers.js in this case) and creates getter
* functions for them all. The example above will create a new User model instance and add it to the AllUsers Store.
- * Of course, you could do anything in this function but in this case we just did something simple to demonstrate the
+ * Of course, you could do anything in this function but in this case we just did something simple to demonstrate the
* functionality.
- *
+ *
* <u>Further Reading</u>
- *
- * For more information about writing Ext JS 4 applications, please see the <a href="../guide/application_architecture">
- * application architecture guide</a>. Also see the {@link Ext.app.Application} documentation.
- *
- * @markdown
+ *
+ * For more information about writing Ext JS 4 applications, please see the
+ * [application architecture guide](#/guide/application_architecture). Also see the {@link Ext.app.Application} documentation.
+ *
* @docauthor Ed Spencer
- */
+ */
Ext.define('Ext.app.Controller', {
-<span id='Ext-app.Controller-cfg-id'> /**
-</span> * @cfg {Object} id The id of this controller. You can use this id when dispatching.
- */
mixins: {
observable: 'Ext.util.Observable'
},
+<span id='Ext-app-Controller-cfg-id'> /**
+</span> * @cfg {String} id The id of this controller. You can use this id when dispatching.
+ */
+
+<span id='Ext-app-Controller-cfg-models'> /**
+</span> * @cfg {String[]} models
+ * Array of models to require from AppName.model namespace. For example:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * models: ['User', 'Vehicle']
+ * });
+ *
+ * This is equivalent of:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * requires: ['MyApp.model.User', 'MyApp.model.Vehicle']
+ * });
+ *
+ */
+
+<span id='Ext-app-Controller-cfg-views'> /**
+</span> * @cfg {String[]} views
+ * Array of views to require from AppName.view namespace. For example:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * views: ['List', 'Detail']
+ * });
+ *
+ * This is equivalent of:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * requires: ['MyApp.view.List', 'MyApp.view.Detail']
+ * });
+ *
+ */
+
+<span id='Ext-app-Controller-cfg-stores'> /**
+</span> * @cfg {String[]} stores
+ * Array of stores to require from AppName.store namespace. For example:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * stores: ['Users', 'Vehicles']
+ * });
+ *
+ * This is equivalent of:
+ *
+ * Ext.define("MyApp.controller.Foo", {
+ * extend: "Ext.app.Controller",
+ * requires: ['MyApp.store.Users', 'MyApp.store.Vehicles']
+ * });
+ *
+ */
+
onClassExtended: function(cls, data) {
var className = Ext.getClassName(cls),
match = className.match(/^(.*)\.controller\./);
}
},
+<span id='Ext-app-Controller-method-constructor'> /**
+</span> * Creates new Controller.
+ * @param {Object} config (optional) Config object.
+ */
constructor: function(config) {
this.mixins.observable.constructor.call(this, config);
}
},
- // Template method
+<span id='Ext-app-Controller-method-init'> /**
+</span> * A template method that is called when your application boots. It is called before the
+ * {@link Ext.app.Application Application}'s launch function is executed so gives a hook point to run any code before
+ * your Viewport is created.
+ *
+ * @param {Ext.app.Application} application
+ * @template
+ */
init: function(application) {},
- // Template method
+
+<span id='Ext-app-Controller-method-onLaunch'> /**
+</span> * A template method like {@link #init}, but called after the viewport is created.
+ * This is called after the {@link Ext.app.Application#launch launch} method of Application is executed.
+ *
+ * @param {Ext.app.Application} application
+ * @template
+ */
onLaunch: function(application) {},
createGetters: function(type, refs) {
return cached;
},
+<span id='Ext-app-Controller-method-control'> /**
+</span> * Adds listeners to components selected via {@link Ext.ComponentQuery}. Accepts an
+ * object containing component paths mapped to a hash of listener functions.
+ *
+ * In the following example the `updateUser` function is mapped to to the `click`
+ * event on a button component, which is a child of the `useredit` component.
+ *
+ * Ext.define('AM.controller.Users', {
+ * init: function() {
+ * this.control({
+ * 'useredit button[action=save]': {
+ * click: this.updateUser
+ * }
+ * });
+ * },
+ *
+ * updateUser: function(button) {
+ * console.log('clicked the Save button');
+ * }
+ * });
+ *
+ * See {@link Ext.ComponentQuery} for more information on component selectors.
+ *
+ * @param {String/Object} selectors If a String, the second argument is used as the
+ * listeners, otherwise an object of selectors -> listeners is assumed
+ * @param {Object} listeners
+ */
control: function(selectors, listeners) {
this.application.control(selectors, listeners, this);
},
+<span id='Ext-app-Controller-method-getController'> /**
+</span> * Returns instance of a {@link Ext.app.Controller controller} with the given name.
+ * When controller doesn't exist yet, it's created.
+ * @param {String} name
+ * @return {Ext.app.Controller} a controller instance.
+ */
getController: function(name) {
return this.application.getController(name);
},
+<span id='Ext-app-Controller-method-getStore'> /**
+</span> * Returns instance of a {@link Ext.data.Store Store} with the given name.
+ * When store doesn't exist yet, it's created.
+ * @param {String} name
+ * @return {Ext.data.Store} a store instance.
+ */
getStore: function(name) {
return this.application.getStore(name);
},
+<span id='Ext-app-Controller-method-getModel'> /**
+</span> * Returns a {@link Ext.data.Model Model} class with the given name.
+ * A shorthand for using {@link Ext.ModelManager#getModel}.
+ * @param {String} name
+ * @return {Ext.data.Model} a model class.
+ */
getModel: function(model) {
return this.application.getModel(model);
},
+<span id='Ext-app-Controller-method-getView'> /**
+</span> * Returns a View class with the given name. To create an instance of the view,
+ * you can use it like it's used by Application to create the Viewport:
+ *
+ * this.getView('Viewport').create();
+ *
+ * @param {String} name
+ * @return {Ext.Base} a view class.
+ */
getView: function(view) {
return this.application.getView(view);
}
});
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