/** * An Action is a piece of reusable functionality that can be abstracted out of any particular component so that it * can be usefully shared among multiple components. Actions let you share handlers, configuration options and UI * updates across any components that support the Action interface (primarily {@link Ext.toolbar.Toolbar}, * {@link Ext.button.Button} and {@link Ext.menu.Menu} components). * * Use a single Action instance as the config object for any number of UI Components which share the same configuration. The * Action not only supplies the configuration, but allows all Components based upon it to have a common set of methods * called at once through a single call to the Action. * * Any Component that is to be configured with an Action must also support * the following methods: * * - setText(string) * - setIconCls(string) * - setDisabled(boolean) * - setVisible(boolean) * - setHandler(function) * * This allows the Action to control its associated Components. * * Example usage: * * // Define the shared Action. Each Component below will have the same * // display text and icon, and will display the same message on click. * var action = new Ext.Action({ * {@link #text}: 'Do something', * {@link #handler}: function(){ * Ext.Msg.alert('Click', 'You did something.'); * }, * {@link #iconCls}: 'do-something', * {@link #itemId}: 'myAction' * }); * * var panel = new Ext.panel.Panel({ * title: 'Actions', * width: 500, * height: 300, * tbar: [ * // Add the Action directly to a toolbar as a menu button * action, * { * text: 'Action Menu', * // Add the Action to a menu as a text item * menu: [action] * } * ], * items: [ * // Add the Action to the panel body as a standard button * new Ext.button.Button(action) * ], * renderTo: Ext.getBody() * }); * * // Change the text for all components using the Action * action.setText('Something else'); * * // Reference an Action through a container using the itemId * var btn = panel.getComponent('myAction'); * var aRef = btn.baseAction; * aRef.setText('New text'); */Ext.define('Ext.Action', { /* Begin Definitions */ /* End Definitions */ /** * @cfg {String} [text=''] * The text to set for all components configured by this Action. */ /** * @cfg {String} [iconCls=''] * The CSS class selector that specifies a background image to be used as the header icon for * all components configured by this Action. * * An example of specifying a custom icon class would be something like: * * // specify the property in the config for the class: * ... * iconCls: 'do-something' * * // css class that specifies background image to be used as the icon image: * .do-something { background-image: url(../images/my-icon.gif) 0 6px no-repeat !important; } * * There are no default icon classes that come with Ext JS. */ /** * @cfg {Boolean} [disabled=false] * True to disable all components configured by this Action, false to enable them. */ /** * @cfg {Boolean} [hidden=false] * True to hide all components configured by this Action, false to show them. */ /** * @cfg {Function} handler * The function that will be invoked by each component tied to this Action * when the component's primary event is triggered. */ /** * @cfg {String} itemId * See {@link Ext.Component}.{@link Ext.Component#itemId itemId}. */ /** * @cfg {Object} scope * The scope (this reference) in which the {@link #handler} is executed. * Defaults to the browser window. */ /** * Creates new Action. * @param {Object} config Config object. */ constructor : function(config){ this.initialConfig = config; this.itemId = config.itemId = (config.itemId || config.id || Ext.id()); this.items = []; }, /* * @property {Boolean} isAction * `true` in this class to identify an object as an instantiated Action, or subclass thereof. */ isAction : true, /** * Sets the text to be displayed by all components configured by this Action. * @param {String} text The text to display */ setText : function(text){ this.initialConfig.text = text; this.callEach('setText', [text]); }, /** * Gets the text currently displayed by all components configured by this Action. */ getText : function(){ return this.initialConfig.text; }, /** * Sets the icon CSS class for all components configured by this Action. The class should supply * a background image that will be used as the icon image. * @param {String} cls The CSS class supplying the icon image */ setIconCls : function(cls){ this.initialConfig.iconCls = cls; this.callEach('setIconCls', [cls]); }, /** * Gets the icon CSS class currently used by all components configured by this Action. */ getIconCls : function(){ return this.initialConfig.iconCls; }, /** * Sets the disabled state of all components configured by this Action. Shortcut method * for {@link #enable} and {@link #disable}. * @param {Boolean} disabled True to disable the component, false to enable it */ setDisabled : function(v){ this.initialConfig.disabled = v; this.callEach('setDisabled', [v]); }, /** * Enables all components configured by this Action. */ enable : function(){ this.setDisabled(false); }, /** * Disables all components configured by this Action. */ disable : function(){ this.setDisabled(true); }, /** * Returns true if the components using this Action are currently disabled, else returns false. */ isDisabled : function(){ return this.initialConfig.disabled; }, /** * Sets the hidden state of all components configured by this Action. Shortcut method * for `{@link #hide}` and `{@link #show}`. * @param {Boolean} hidden True to hide the component, false to show it. */ setHidden : function(v){ this.initialConfig.hidden = v; this.callEach('setVisible', [!v]); }, /** * Shows all components configured by this Action. */ show : function(){ this.setHidden(false); }, /** * Hides all components configured by this Action. */ hide : function(){ this.setHidden(true); }, /** * Returns true if the components configured by this Action are currently hidden, else returns false. */ isHidden : function(){ return this.initialConfig.hidden; }, /** * Sets the function that will be called by each Component using this action when its primary event is triggered. * @param {Function} fn The function that will be invoked by the action's components. The function * will be called with no arguments. * @param {Object} scope The scope (this reference) in which the function is executed. Defaults to the Component * firing the event. */ setHandler : function(fn, scope){ this.initialConfig.handler = fn; this.initialConfig.scope = scope; this.callEach('setHandler', [fn, scope]); }, /** * Executes the specified function once for each Component currently tied to this Action. The function passed * in should accept a single argument that will be an object that supports the basic Action config/method interface. * @param {Function} fn The function to execute for each component * @param {Object} scope The scope (this reference) in which the function is executed. * Defaults to the Component. */ each : function(fn, scope){ Ext.each(this.items, fn, scope); }, // @private callEach : function(fnName, args){ var items = this.items, i = 0, len = items.length, item; Ext.suspendLayouts(); for(; i < len; i++){ item = items[i]; item[fnName].apply(item, args); } Ext.resumeLayouts(true); }, // @private addComponent : function(comp){ this.items.push(comp); comp.on('destroy', this.removeComponent, this); }, // @private removeComponent : function(comp){ Ext.Array.remove(this.items, comp); }, /** * Executes this Action manually using the handler function specified in the original config object * or the handler function set with {@link #setHandler}. Any arguments passed to this * function will be passed on to the handler function. * @param {Object...} args Variable number of arguments passed to the handler function */ execute : function(){ this.initialConfig.handler.apply(this.initialConfig.scope || Ext.global, arguments); }});