X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/src/widgets/Action.js diff --git a/src/widgets/Action.js b/src/widgets/Action.js new file mode 100644 index 00000000..6d28288e --- /dev/null +++ b/src/widgets/Action.js @@ -0,0 +1,252 @@ +/*! + * Ext JS Library 3.0.0 + * Copyright(c) 2006-2009 Ext JS, LLC + * licensing@extjs.com + * http://www.extjs.com/license + */ +/** + * @class Ext.Action + *
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}, {@link Ext.Button} + * and {@link Ext.menu.Menu} components).
+ *Aside from supporting the config object interface, any component that needs to use Actions must also support + * the following method list, as these will be called as needed by the Action class: setText(string), setIconCls(string), + * setDisabled(boolean), setVisible(boolean) and setHandler(function).
+ * 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({
+ 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(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');
+
+ * @constructor
+ * @param {Object} config The configuration options
+ */
+Ext.Action = function(config){
+ this.initialConfig = config;
+ this.itemId = config.itemId = (config.itemId || config.id || Ext.id());
+ this.items = [];
+}
+
+Ext.Action.prototype = {
+ /**
+ * @cfg {String} text The text to set for all components using this action (defaults to '').
+ */
+ /**
+ * @cfg {String} iconCls
+ * The CSS class selector that specifies a background image to be used as the header icon for
+ * all components using this action (defaults to '').
+ * 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; }
+
+ */
+ /**
+ * @cfg {Boolean} disabled True to disable all components using this action, false to enable them (defaults to false).
+ */
+ /**
+ * @cfg {Boolean} hidden True to hide all components using this action, false to show them (defaults to false).
+ */
+ /**
+ * @cfg {Function} handler The function that will be invoked by each component tied to this action
+ * when the component's primary event is triggered (defaults to undefined).
+ */
+ /**
+ * @cfg {String} itemId
+ * See {@link Ext.Component}.{@link Ext.Component#itemId itemId}.
+ */
+ /**
+ * @cfg {Object} scope The scope in which the {@link #handler} function will execute.
+ */
+
+ // private
+ isAction : true,
+
+ /**
+ * Sets the text to be displayed by all components using 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 using this action.
+ */
+ getText : function(){
+ return this.initialConfig.text;
+ },
+
+ /**
+ * Sets the icon CSS class for all components using 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
+ */
+ setIconClass : function(cls){
+ this.initialConfig.iconCls = cls;
+ this.callEach('setIconClass', [cls]);
+ },
+
+ /**
+ * Gets the icon CSS class currently used by all components using this action.
+ */
+ getIconClass : function(){
+ return this.initialConfig.iconCls;
+ },
+
+ /**
+ * Sets the disabled state of all components using 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 using this action.
+ */
+ enable : function(){
+ this.setDisabled(false);
+ },
+
+ /**
+ * Disables all components using 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 using 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 using this action.
+ */
+ show : function(){
+ this.setHidden(false);
+ },
+
+ /**
+ * Hides all components using this action.
+ */
+ hide : function(){
+ this.setHidden(true);
+ },
+
+ /**
+ * Returns true if the components using 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 in which the function will execute
+ */
+ 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 in which the function will execute
+ */
+ each : function(fn, scope){
+ Ext.each(this.items, fn, scope);
+ },
+
+ // private
+ callEach : function(fnName, args){
+ var cs = this.items;
+ for(var i = 0, len = cs.length; i < len; i++){
+ cs[i][fnName].apply(cs[i], args);
+ }
+ },
+
+ // private
+ addComponent : function(comp){
+ this.items.push(comp);
+ comp.on('destroy', this.removeComponent, this);
+ },
+
+ // private
+ removeComponent : function(comp){
+ this.items.remove(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 {Mixed} arg1 (optional) Variable number of arguments passed to the handler function
+ * @param {Mixed} arg2 (optional)
+ * @param {Mixed} etc... (optional)
+ */
+ execute : function(){
+ this.initialConfig.handler.apply(this.initialConfig.scope || window, arguments);
+ }
+};