+<!DOCTYPE html>
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<head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>The source code</title>
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+ </style>
+ <script type="text/javascript">
+ function highlight() {
+ document.getElementById(location.hash.replace(/#/, "")).className = "highlight";
+ }
+ </script>
</head>
-<body onload="prettyPrint();">
- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.2.2
- * Copyright(c) 2006-2010 Ext JS, Inc.
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-(function(){
-
-var EXTUTIL = Ext.util,
- EACH = Ext.each,
- TRUE = true,
- FALSE = false;
-<div id="cls-Ext.util.Observable"></div>/**
- * @class Ext.util.Observable
- * Base class that provides a common interface for publishing events. Subclasses are expected to
- * to have a property "events" with all the events defined, and, optionally, a property "listeners"
- * with configured listeners defined.<br>
+<body onload="prettyPrint(); highlight();">
+ <pre class="prettyprint lang-js"><span id='Ext-util-Observable'>/**
+</span> * Base class that provides a common interface for publishing events. Subclasses are expected to to have a property
+ * "events" with all the events defined, and, optionally, a property "listeners" with configured listeners defined.
+ *
* For example:
- * <pre><code>
-Employee = Ext.extend(Ext.util.Observable, {
- constructor: function(config){
- this.name = config.name;
- this.addEvents({
- "fired" : true,
- "quit" : true
- });
-
- // Copy configured listeners into *this* object so that the base class's
- // constructor will add them.
- this.listeners = config.listeners;
-
- // Call our superclass constructor to complete construction process.
- Employee.superclass.constructor.call(this, config)
- }
-});
-</code></pre>
- * This could then be used like this:<pre><code>
-var newEmployee = new Employee({
- name: employeeName,
- listeners: {
- quit: function() {
- // By default, "this" will be the object that fired the event.
- alert(this.name + " has quit!");
- }
- }
-});
-</code></pre>
+ *
+ * Ext.define('Employee', {
+ * extend: 'Ext.util.Observable',
+ * constructor: function(config){
+ * this.name = config.name;
+ * this.addEvents({
+ * "fired" : true,
+ * "quit" : true
+ * });
+ *
+ * // Copy configured listeners into *this* object so that the base class's
+ * // constructor will add them.
+ * this.listeners = config.listeners;
+ *
+ * // Call our superclass constructor to complete construction process.
+ * this.callParent(arguments)
+ * }
+ * });
+ *
+ * This could then be used like this:
+ *
+ * var newEmployee = new Employee({
+ * name: employeeName,
+ * listeners: {
+ * quit: function() {
+ * // By default, "this" will be the object that fired the event.
+ * alert(this.name + " has quit!");
+ * }
+ * }
+ * });
*/
-EXTUTIL.Observable = function(){
- <div id="cfg-Ext.util.Observable-listeners"></div>/**
- * @cfg {Object} listeners (optional) <p>A config object containing one or more event handlers to be added to this
- * object during initialization. This should be a valid listeners config object as specified in the
- * {@link #addListener} example for attaching multiple handlers at once.</p>
- * <br><p><b><u>DOM events from ExtJs {@link Ext.Component Components}</u></b></p>
- * <br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
- * is usually only done when extra value can be added. For example the {@link Ext.DataView DataView}'s
- * <b><code>{@link Ext.DataView#click click}</code></b> event passing the node clicked on. To access DOM
- * events directly from a Component's HTMLElement, listeners must be added to the <i>{@link Ext.Component#getEl Element}</i> after the Component
- * has been rendered. A plugin can simplify this step:<pre><code>
-// Plugin is configured with a listeners config object.
-// The Component is appended to the argument list of all handler functions.
-Ext.DomObserver = Ext.extend(Object, {
- constructor: function(config) {
- this.listeners = config.listeners ? config.listeners : config;
+Ext.define('Ext.util.Observable', {
+
+ /* Begin Definitions */
+
+ requires: ['Ext.util.Event'],
+
+ statics: {
+<span id='Ext-util-Observable-static-method-releaseCapture'> /**
+</span> * Removes **all** added captures from the Observable.
+ *
+ * @param {Ext.util.Observable} o The Observable to release
+ * @static
+ */
+ releaseCapture: function(o) {
+ o.fireEvent = this.prototype.fireEvent;
+ },
+
+<span id='Ext-util-Observable-static-method-capture'> /**
+</span> * Starts capture on the specified Observable. All events will be passed to the supplied function with the event
+ * name + standard signature of the event **before** the event is fired. If the supplied function returns false,
+ * the event will not fire.
+ *
+ * @param {Ext.util.Observable} o The Observable to capture events from.
+ * @param {Function} fn The function to call when an event is fired.
+ * @param {Object} scope (optional) The scope (`this` reference) in which the function is executed. Defaults to
+ * the Observable firing the event.
+ * @static
+ */
+ capture: function(o, fn, scope) {
+ o.fireEvent = Ext.Function.createInterceptor(o.fireEvent, fn, scope);
+ },
+
+<span id='Ext-util-Observable-static-method-observe'> /**
+</span> * Sets observability on the passed class constructor.
+ *
+ * This makes any event fired on any instance of the passed class also fire a single event through
+ * the **class** allowing for central handling of events on many instances at once.
+ *
+ * Usage:
+ *
+ * Ext.util.Observable.observe(Ext.data.Connection);
+ * Ext.data.Connection.on('beforerequest', function(con, options) {
+ * console.log('Ajax request made to ' + options.url);
+ * });
+ *
+ * @param {Function} c The class constructor to make observable.
+ * @param {Object} listeners An object containing a series of listeners to add. See {@link #addListener}.
+ * @static
+ */
+ observe: function(cls, listeners) {
+ if (cls) {
+ if (!cls.isObservable) {
+ Ext.applyIf(cls, new this());
+ this.capture(cls.prototype, cls.fireEvent, cls);
+ }
+ if (Ext.isObject(listeners)) {
+ cls.on(listeners);
+ }
+ return cls;
+ }
+ }
},
- // Component passes itself into plugin's init method
- init: function(c) {
- var p, l = this.listeners;
- for (p in l) {
- if (Ext.isFunction(l[p])) {
- l[p] = this.createHandler(l[p], c);
- } else {
- l[p].fn = this.createHandler(l[p].fn, c);
- }
+ /* End Definitions */
+
+<span id='Ext-util-Observable-cfg-listeners'> /**
+</span> * @cfg {Object} listeners
+ *
+ * A config object containing one or more event handlers to be added to this object during initialization. This
+ * should be a valid listeners config object as specified in the {@link #addListener} example for attaching multiple
+ * handlers at once.
+ *
+ * **DOM events from Ext JS {@link Ext.Component Components}**
+ *
+ * While _some_ Ext JS Component classes export selected DOM events (e.g. "click", "mouseover" etc), this is usually
+ * only done when extra value can be added. For example the {@link Ext.view.View DataView}'s **`{@link
+ * Ext.view.View#itemclick itemclick}`** event passing the node clicked on. To access DOM events directly from a
+ * child element of a Component, we need to specify the `element` option to identify the Component property to add a
+ * DOM listener to:
+ *
+ * new Ext.panel.Panel({
+ * width: 400,
+ * height: 200,
+ * dockedItems: [{
+ * xtype: 'toolbar'
+ * }],
+ * listeners: {
+ * click: {
+ * element: 'el', //bind to the underlying el property on the panel
+ * fn: function(){ console.log('click el'); }
+ * },
+ * dblclick: {
+ * element: 'body', //bind to the underlying body property on the panel
+ * fn: function(){ console.log('dblclick body'); }
+ * }
+ * }
+ * });
+ */
+ // @private
+ isObservable: true,
+
+ constructor: function(config) {
+ var me = this;
+
+ Ext.apply(me, config);
+ if (me.listeners) {
+ me.on(me.listeners);
+ delete me.listeners;
}
+ me.events = me.events || {};
+
+ if (me.bubbleEvents) {
+ me.enableBubble(me.bubbleEvents);
+ }
+ },
- // Add the listeners to the Element immediately following the render call
- c.render = c.render.{@link Function#createSequence createSequence}(function() {
- var e = c.getEl();
- if (e) {
- e.on(l);
+ // @private
+ eventOptionsRe : /^(?:scope|delay|buffer|single|stopEvent|preventDefault|stopPropagation|normalized|args|delegate|element|vertical|horizontal|freezeEvent)$/,
+
+<span id='Ext-util-Observable-method-addManagedListener'> /**
+</span> * Adds listeners to any Observable object (or Ext.Element) which are automatically removed when this Component is
+ * destroyed.
+ *
+ * @param {Ext.util.Observable/Ext.Element} item The item to which to add a listener/listeners.
+ * @param {Object/String} ename The event name, or an object containing event name properties.
+ * @param {Function} fn (optional) If the `ename` parameter was an event name, this is the handler function.
+ * @param {Object} scope (optional) If the `ename` parameter was an event name, this is the scope (`this` reference)
+ * in which the handler function is executed.
+ * @param {Object} opt (optional) If the `ename` parameter was an event name, this is the
+ * {@link Ext.util.Observable#addListener addListener} options.
+ */
+ addManagedListener : function(item, ename, fn, scope, options) {
+ var me = this,
+ managedListeners = me.managedListeners = me.managedListeners || [],
+ config;
+
+ if (typeof ename !== 'string') {
+ options = ename;
+ for (ename in options) {
+ if (options.hasOwnProperty(ename)) {
+ config = options[ename];
+ if (!me.eventOptionsRe.test(ename)) {
+ me.addManagedListener(item, ename, config.fn || config, config.scope || options.scope, config.fn ? config : options);
+ }
+ }
}
- });
+ }
+ else {
+ managedListeners.push({
+ item: item,
+ ename: ename,
+ fn: fn,
+ scope: scope,
+ options: options
+ });
+
+ item.on(ename, fn, scope, options);
+ }
},
- createHandler: function(fn, c) {
- return function(e) {
- fn.call(this, e, c);
- };
- }
-});
+<span id='Ext-util-Observable-method-removeManagedListener'> /**
+</span> * Removes listeners that were added by the {@link #mon} method.
+ *
+ * @param {Ext.util.Observable/Ext.Element} item The item from which to remove a listener/listeners.
+ * @param {Object/String} ename The event name, or an object containing event name properties.
+ * @param {Function} fn (optional) If the `ename` parameter was an event name, this is the handler function.
+ * @param {Object} scope (optional) If the `ename` parameter was an event name, this is the scope (`this` reference)
+ * in which the handler function is executed.
+ */
+ removeManagedListener : function(item, ename, fn, scope) {
+ var me = this,
+ options,
+ config,
+ managedListeners,
+ length,
+ i;
+
+ if (typeof ename !== 'string') {
+ options = ename;
+ for (ename in options) {
+ if (options.hasOwnProperty(ename)) {
+ config = options[ename];
+ if (!me.eventOptionsRe.test(ename)) {
+ me.removeManagedListener(item, ename, config.fn || config, config.scope || options.scope);
+ }
+ }
+ }
+ }
-var combo = new Ext.form.ComboBox({
+ managedListeners = me.managedListeners ? me.managedListeners.slice() : [];
- // Collapse combo when its element is clicked on
- plugins: [ new Ext.DomObserver({
- click: function(evt, comp) {
- comp.collapse();
+ for (i = 0, length = managedListeners.length; i < length; i++) {
+ me.removeManagedListenerItem(false, managedListeners[i], item, ename, fn, scope);
}
- })],
- store: myStore,
- typeAhead: true,
- mode: 'local',
- triggerAction: 'all'
-});
- * </code></pre></p>
- */
- var me = this, e = me.events;
- if(me.listeners){
- me.on(me.listeners);
- delete me.listeners;
- }
- me.events = e || {};
-};
-
-EXTUTIL.Observable.prototype = {
- // private
- filterOptRe : /^(?:scope|delay|buffer|single)$/,
+ },
- <div id="method-Ext.util.Observable-fireEvent"></div>/**
- * <p>Fires the specified event with the passed parameters (minus the event name).</p>
- * <p>An event may be set to bubble up an Observable parent hierarchy (See {@link Ext.Component#getBubbleTarget})
- * by calling {@link #enableBubble}.</p>
+<span id='Ext-util-Observable-method-fireEvent'> /**
+</span> * Fires the specified event with the passed parameters (minus the event name, plus the `options` object passed
+ * to {@link #addListener}).
+ *
+ * An event may be set to bubble up an Observable parent hierarchy (See {@link Ext.Component#getBubbleTarget}) by
+ * calling {@link #enableBubble}.
+ *
* @param {String} eventName The name of the event to fire.
* @param {Object...} args Variable number of parameters are passed to handlers.
* @return {Boolean} returns false if any of the handlers return false otherwise it returns true.
*/
- fireEvent : function(){
- var a = Array.prototype.slice.call(arguments, 0),
- ename = a[0].toLowerCase(),
- me = this,
- ret = TRUE,
- ce = me.events[ename],
- cc,
- q,
- c;
- if (me.eventsSuspended === TRUE) {
- if (q = me.eventQueue) {
- q.push(a);
- }
- }
- else if(typeof ce == 'object') {
- if (ce.bubble){
- if(ce.fire.apply(ce, a.slice(1)) === FALSE) {
- return FALSE;
+ fireEvent: function(eventName) {
+ var name = eventName.toLowerCase(),
+ events = this.events,
+ event = events && events[name],
+ bubbles = event && event.bubble;
+
+ return this.continueFireEvent(name, Ext.Array.slice(arguments, 1), bubbles);
+ },
+
+<span id='Ext-util-Observable-method-continueFireEvent'> /**
+</span> * Continue to fire event.
+ * @private
+ *
+ * @param {String} eventName
+ * @param {Array} args
+ * @param {Boolean} bubbles
+ */
+ continueFireEvent: function(eventName, args, bubbles) {
+ var target = this,
+ queue, event,
+ ret = true;
+
+ do {
+ if (target.eventsSuspended === true) {
+ if ((queue = target.eventQueue)) {
+ queue.push([eventName, args, bubbles]);
}
- c = me.getBubbleTarget && me.getBubbleTarget();
- if(c && c.enableBubble) {
- cc = c.events[ename];
- if(!cc || typeof cc != 'object' || !cc.bubble) {
- c.enableBubble(ename);
+ return ret;
+ } else {
+ event = target.events[eventName];
+ // Continue bubbling if event exists and it is `true` or the handler didn't returns false and it
+ // configure to bubble.
+ if (event && event != true) {
+ if ((ret = event.fire.apply(event, args)) === false) {
+ break;
}
- return c.fireEvent.apply(c, a);
}
}
- else {
- a.shift();
- ret = ce.fire.apply(ce, a);
- }
- }
+ } while (bubbles && (target = target.getBubbleParent()));
return ret;
},
- <div id="method-Ext.util.Observable-addListener"></div>/**
- * Appends an event handler to this object.
- * @param {String} eventName The name of the event to listen for.
- * @param {Function} handler The method the event invokes.
- * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b>
- * @param {Object} options (optional) An object containing handler configuration.
- * properties. This may contain any of the following properties:<ul>
- * <li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b></div></li>
- * <li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
- * <li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
- * <li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an {@link Ext.util.DelayedTask} delayed
- * by the specified number of milliseconds. If the event fires again within that time, the original
- * handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
- * <li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
- * if the event was bubbled up from a child Observable.</div></li>
- * </ul><br>
- * <p>
- * <b>Combining Options</b><br>
- * Using the options argument, it is possible to combine different types of listeners:<br>
- * <br>
+<span id='Ext-util-Observable-method-getBubbleParent'> /**
+</span> * Gets the bubbling parent for an Observable
+ * @private
+ * @return {Ext.util.Observable} The bubble parent. null is returned if no bubble target exists
+ */
+ getBubbleParent: function(){
+ var me = this, parent = me.getBubbleTarget && me.getBubbleTarget();
+ if (parent && parent.isObservable) {
+ return parent;
+ }
+ return null;
+ },
+
+<span id='Ext-util-Observable-method-addListener'> /**
+</span> * Appends an event handler to this object.
+ *
+ * @param {String} eventName The name of the event to listen for. May also be an object who's property names are
+ * event names.
+ * @param {Function} fn The method the event invokes. Will be called with arguments given to
+ * {@link #fireEvent} plus the `options` parameter described below.
+ * @param {Object} [scope] The scope (`this` reference) in which the handler function is executed. **If
+ * omitted, defaults to the object which fired the event.**
+ * @param {Object} [options] An object containing handler configuration.
+ *
+ * **Note:** Unlike in ExtJS 3.x, the options object will also be passed as the last argument to every event handler.
+ *
+ * This object may contain any of the following properties:
+ *
+ * - **scope** : Object
+ *
+ * The scope (`this` reference) in which the handler function is executed. **If omitted, defaults to the object
+ * which fired the event.**
+ *
+ * - **delay** : Number
+ *
+ * The number of milliseconds to delay the invocation of the handler after the event fires.
+ *
+ * - **single** : Boolean
+ *
+ * True to add a handler to handle just the next firing of the event, and then remove itself.
+ *
+ * - **buffer** : Number
+ *
+ * Causes the handler to be scheduled to run in an {@link Ext.util.DelayedTask} delayed by the specified number of
+ * milliseconds. If the event fires again within that time, the original handler is _not_ invoked, but the new
+ * handler is scheduled in its place.
+ *
+ * - **target** : Observable
+ *
+ * Only call the handler if the event was fired on the target Observable, _not_ if the event was bubbled up from a
+ * child Observable.
+ *
+ * - **element** : String
+ *
+ * **This option is only valid for listeners bound to {@link Ext.Component Components}.** The name of a Component
+ * property which references an element to add a listener to.
+ *
+ * This option is useful during Component construction to add DOM event listeners to elements of
+ * {@link Ext.Component Components} which will exist only after the Component is rendered.
+ * For example, to add a click listener to a Panel's body:
+ *
+ * new Ext.panel.Panel({
+ * title: 'The title',
+ * listeners: {
+ * click: this.handlePanelClick,
+ * element: 'body'
+ * }
+ * });
+ *
+ * **Combining Options**
+ *
+ * Using the options argument, it is possible to combine different types of listeners:
+ *
* A delayed, one-time listener.
- * <pre><code>
-myDataView.on('click', this.onClick, this, {
-single: true,
-delay: 100
-});</code></pre>
- * <p>
- * <b>Attaching multiple handlers in 1 call</b><br>
- * The method also allows for a single argument to be passed which is a config object containing properties
- * which specify multiple handlers.
- * <p>
- * <pre><code>
-myGridPanel.on({
-'click' : {
- fn: this.onClick,
- scope: this,
- delay: 100
-},
-'mouseover' : {
- fn: this.onMouseOver,
- scope: this
-},
-'mouseout' : {
- fn: this.onMouseOut,
- scope: this
-}
-});</code></pre>
- * <p>
- * Or a shorthand syntax:<br>
- * <pre><code>
-myGridPanel.on({
-'click' : this.onClick,
-'mouseover' : this.onMouseOver,
-'mouseout' : this.onMouseOut,
- scope: this
-});</code></pre>
+ *
+ * myPanel.on('hide', this.handleClick, this, {
+ * single: true,
+ * delay: 100
+ * });
+ *
+ * **Attaching multiple handlers in 1 call**
+ *
+ * The method also allows for a single argument to be passed which is a config object containing properties which
+ * specify multiple events. For example:
+ *
+ * myGridPanel.on({
+ * cellClick: this.onCellClick,
+ * mouseover: this.onMouseOver,
+ * mouseout: this.onMouseOut,
+ * scope: this // Important. Ensure "this" is correct during handler execution
+ * });
+ *
+ * One can also specify options for each event handler separately:
+ *
+ * myGridPanel.on({
+ * cellClick: {fn: this.onCellClick, scope: this, single: true},
+ * mouseover: {fn: panel.onMouseOver, scope: panel}
+ * });
+ *
*/
- addListener : function(eventName, fn, scope, o){
+ addListener: function(ename, fn, scope, options) {
var me = this,
- e,
- oe,
- ce;
-
- if (typeof eventName == 'object') {
- o = eventName;
- for (e in o) {
- oe = o[e];
- if (!me.filterOptRe.test(e)) {
- me.addListener(e, oe.fn || oe, oe.scope || o.scope, oe.fn ? oe : o);
+ config,
+ event;
+
+ if (typeof ename !== 'string') {
+ options = ename;
+ for (ename in options) {
+ if (options.hasOwnProperty(ename)) {
+ config = options[ename];
+ if (!me.eventOptionsRe.test(ename)) {
+ me.addListener(ename, config.fn || config, config.scope || options.scope, config.fn ? config : options);
+ }
}
}
- } else {
- eventName = eventName.toLowerCase();
- ce = me.events[eventName] || TRUE;
- if (typeof ce == 'boolean') {
- me.events[eventName] = ce = new EXTUTIL.Event(me, eventName);
+ }
+ else {
+ ename = ename.toLowerCase();
+ me.events[ename] = me.events[ename] || true;
+ event = me.events[ename] || true;
+ if (Ext.isBoolean(event)) {
+ me.events[ename] = event = new Ext.util.Event(me, ename);
}
- ce.addListener(fn, scope, typeof o == 'object' ? o : {});
+ event.addListener(fn, scope, Ext.isObject(options) ? options : {});
}
},
- <div id="method-Ext.util.Observable-removeListener"></div>/**
- * Removes an event handler.
- * @param {String} eventName The type of event the handler was associated with.
- * @param {Function} handler The handler to remove. <b>This must be a reference to the function passed into the {@link #addListener} call.</b>
- * @param {Object} scope (optional) The scope originally specified for the handler.
+<span id='Ext-util-Observable-method-removeListener'> /**
+</span> * Removes an event handler.
+ *
+ * @param {String} eventName The type of event the handler was associated with.
+ * @param {Function} fn The handler to remove. **This must be a reference to the function passed into the
+ * {@link #addListener} call.**
+ * @param {Object} scope (optional) The scope originally specified for the handler. It must be the same as the
+ * scope argument specified in the original call to {@link #addListener} or the listener will not be removed.
*/
- removeListener : function(eventName, fn, scope){
- var ce = this.events[eventName.toLowerCase()];
- if (typeof ce == 'object') {
- ce.removeListener(fn, scope);
+ removeListener: function(ename, fn, scope) {
+ var me = this,
+ config,
+ event,
+ options;
+
+ if (typeof ename !== 'string') {
+ options = ename;
+ for (ename in options) {
+ if (options.hasOwnProperty(ename)) {
+ config = options[ename];
+ if (!me.eventOptionsRe.test(ename)) {
+ me.removeListener(ename, config.fn || config, config.scope || options.scope);
+ }
+ }
+ }
+ } else {
+ ename = ename.toLowerCase();
+ event = me.events[ename];
+ if (event && event.isEvent) {
+ event.removeListener(fn, scope);
+ }
}
},
- <div id="method-Ext.util.Observable-purgeListeners"></div>/**
- * Removes all listeners for this object
+<span id='Ext-util-Observable-method-clearListeners'> /**
+</span> * Removes all listeners for this object including the managed listeners
*/
- purgeListeners : function(){
+ clearListeners: function() {
var events = this.events,
- evt,
+ event,
key;
- for(key in events){
- evt = events[key];
- if(typeof evt == 'object'){
- evt.clearListeners();
+
+ for (key in events) {
+ if (events.hasOwnProperty(key)) {
+ event = events[key];
+ if (event.isEvent) {
+ event.clearListeners();
+ }
}
}
+
+ this.clearManagedListeners();
},
- <div id="method-Ext.util.Observable-addEvents"></div>/**
- * Adds the specified events to the list of events which this Observable may fire.
- * @param {Object|String} o Either an object with event names as properties with a value of <code>true</code>
- * or the first event name string if multiple event names are being passed as separate parameters.
- * @param {string} Optional. Event name if multiple event names are being passed as separate parameters.
- * Usage:<pre><code>
-this.addEvents('storeloaded', 'storecleared');
-</code></pre>
+ //<debug>
+ purgeListeners : function() {
+ if (Ext.global.console) {
+ Ext.global.console.warn('Observable: purgeListeners has been deprecated. Please use clearListeners.');
+ }
+ return this.clearListeners.apply(this, arguments);
+ },
+ //</debug>
+
+<span id='Ext-util-Observable-method-clearManagedListeners'> /**
+</span> * Removes all managed listeners for this object.
*/
- addEvents : function(o){
- var me = this;
- me.events = me.events || {};
- if (typeof o == 'string') {
- var a = arguments,
- i = a.length;
- while(i--) {
- me.events[a[i]] = me.events[a[i]] || TRUE;
+ clearManagedListeners : function() {
+ var managedListeners = this.managedListeners || [],
+ i = 0,
+ len = managedListeners.length;
+
+ for (; i < len; i++) {
+ this.removeManagedListenerItem(true, managedListeners[i]);
+ }
+
+ this.managedListeners = [];
+ },
+
+<span id='Ext-util-Observable-method-removeManagedListenerItem'> /**
+</span> * Remove a single managed listener item
+ * @private
+ * @param {Boolean} isClear True if this is being called during a clear
+ * @param {Object} managedListener The managed listener item
+ * See removeManagedListener for other args
+ */
+ removeManagedListenerItem: function(isClear, managedListener, item, ename, fn, scope){
+ if (isClear || (managedListener.item === item && managedListener.ename === ename && (!fn || managedListener.fn === fn) && (!scope || managedListener.scope === scope))) {
+ managedListener.item.un(managedListener.ename, managedListener.fn, managedListener.scope);
+ if (!isClear) {
+ Ext.Array.remove(this.managedListeners, managedListener);
+ }
+ }
+ },
+
+ //<debug>
+ purgeManagedListeners : function() {
+ if (Ext.global.console) {
+ Ext.global.console.warn('Observable: purgeManagedListeners has been deprecated. Please use clearManagedListeners.');
+ }
+ return this.clearManagedListeners.apply(this, arguments);
+ },
+ //</debug>
+
+<span id='Ext-util-Observable-method-addEvents'> /**
+</span> * Adds the specified events to the list of events which this Observable may fire.
+ *
+ * @param {Object/String} o Either an object with event names as properties with a value of `true` or the first
+ * event name string if multiple event names are being passed as separate parameters. Usage:
+ *
+ * this.addEvents({
+ * storeloaded: true,
+ * storecleared: true
+ * });
+ *
+ * @param {String...} more (optional) Additional event names if multiple event names are being passed as separate
+ * parameters. Usage:
+ *
+ * this.addEvents('storeloaded', 'storecleared');
+ *
+ */
+ addEvents: function(o) {
+ var me = this,
+ args,
+ len,
+ i;
+
+ me.events = me.events || {};
+ if (Ext.isString(o)) {
+ args = arguments;
+ i = args.length;
+
+ while (i--) {
+ me.events[args[i]] = me.events[args[i]] || true;
}
} else {
Ext.applyIf(me.events, o);
}
},
- <div id="method-Ext.util.Observable-hasListener"></div>/**
- * Checks to see if this object has any listeners for a specified event
+<span id='Ext-util-Observable-method-hasListener'> /**
+</span> * Checks to see if this object has any listeners for a specified event
+ *
* @param {String} eventName The name of the event to check for
* @return {Boolean} True if the event is being listened for, else false
*/
- hasListener : function(eventName){
- var e = this.events[eventName.toLowerCase()];
- return typeof e == 'object' && e.listeners.length > 0;
+ hasListener: function(ename) {
+ var event = this.events[ename.toLowerCase()];
+ return event && event.isEvent === true && event.listeners.length > 0;
},
- <div id="method-Ext.util.Observable-suspendEvents"></div>/**
- * Suspend the firing of all events. (see {@link #resumeEvents})
+<span id='Ext-util-Observable-method-suspendEvents'> /**
+</span> * Suspends the firing of all events. (see {@link #resumeEvents})
+ *
* @param {Boolean} queueSuspended Pass as true to queue up suspended events to be fired
- * after the {@link #resumeEvents} call instead of discarding all suspended events;
+ * after the {@link #resumeEvents} call instead of discarding all suspended events.
*/
- suspendEvents : function(queueSuspended){
- this.eventsSuspended = TRUE;
- if(queueSuspended && !this.eventQueue){
+ suspendEvents: function(queueSuspended) {
+ this.eventsSuspended = true;
+ if (queueSuspended && !this.eventQueue) {
this.eventQueue = [];
}
},
- <div id="method-Ext.util.Observable-resumeEvents"></div>/**
- * Resume firing events. (see {@link #suspendEvents})
- * If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
- * events fired during event suspension will be sent to any listeners now.
+<span id='Ext-util-Observable-method-resumeEvents'> /**
+</span> * Resumes firing events (see {@link #suspendEvents}).
+ *
+ * If events were suspended using the `queueSuspended` parameter, then all events fired
+ * during event suspension will be sent to any listeners now.
*/
- resumeEvents : function(){
+ resumeEvents: function() {
var me = this,
- queued = me.eventQueue || [];
- me.eventsSuspended = FALSE;
+ queued = me.eventQueue;
+
+ me.eventsSuspended = false;
delete me.eventQueue;
- EACH(queued, function(e) {
- me.fireEvent.apply(me, e);
- });
- }
-};
-
-var OBSERVABLE = EXTUTIL.Observable.prototype;
-<div id="method-Ext.util.Observable-on"></div>/**
- * Appends an event handler to this object (shorthand for {@link #addListener}.)
- * @param {String} eventName The type of event to listen for
- * @param {Function} handler The method the event invokes
- * @param {Object} scope (optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
- * <b>If omitted, defaults to the object which fired the event.</b>
- * @param {Object} options (optional) An object containing handler configuration.
- * @method
- */
-OBSERVABLE.on = OBSERVABLE.addListener;
-<div id="method-Ext.util.Observable-un"></div>/**
- * Removes an event handler (shorthand for {@link #removeListener}.)
- * @param {String} eventName The type of event the handler was associated with.
- * @param {Function} handler The handler to remove. <b>This must be a reference to the function passed into the {@link #addListener} call.</b>
- * @param {Object} scope (optional) The scope originally specified for the handler.
- * @method
- */
-OBSERVABLE.un = OBSERVABLE.removeListener;
-<div id="method-Ext.util.Observable-Observable.releaseCapture"></div>/**
- * Removes <b>all</b> added captures from the Observable.
- * @param {Observable} o The Observable to release
- * @static
- */
-EXTUTIL.Observable.releaseCapture = function(o){
- o.fireEvent = OBSERVABLE.fireEvent;
-};
-
-function createTargeted(h, o, scope){
- return function(){
- if(o.target == arguments[0]){
- h.apply(scope, Array.prototype.slice.call(arguments, 0));
+ if (queued) {
+ Ext.each(queued, function(e) {
+ me.continueFireEvent.apply(me, e);
+ });
}
- };
-};
-
-function createBuffered(h, o, l, scope){
- l.task = new EXTUTIL.DelayedTask();
- return function(){
- l.task.delay(o.buffer, h, scope, Array.prototype.slice.call(arguments, 0));
- };
-};
-
-function createSingle(h, e, fn, scope){
- return function(){
- e.removeListener(fn, scope);
- return h.apply(scope, arguments);
- };
-};
-
-function createDelayed(h, o, l, scope){
- return function(){
- var task = new EXTUTIL.DelayedTask();
- if(!l.tasks) {
- l.tasks = [];
- }
- l.tasks.push(task);
- task.delay(o.delay || 10, h, scope, Array.prototype.slice.call(arguments, 0));
- };
-};
-
-EXTUTIL.Event = function(obj, name){
- this.name = name;
- this.obj = obj;
- this.listeners = [];
-};
-
-EXTUTIL.Event.prototype = {
- addListener : function(fn, scope, options){
+ },
+
+<span id='Ext-util-Observable-method-relayEvents'> /**
+</span> * Relays selected events from the specified Observable as if the events were fired by `this`.
+ *
+ * @param {Object} origin The Observable whose events this object is to relay.
+ * @param {String[]} events Array of event names to relay.
+ * @param {String} prefix
+ */
+ relayEvents : function(origin, events, prefix) {
+ prefix = prefix || '';
var me = this,
- l;
- scope = scope || me.obj;
- if(!me.isListening(fn, scope)){
- l = me.createListener(fn, scope, options);
- if(me.firing){ // if we are currently firing this event, don't disturb the listener loop
- me.listeners = me.listeners.slice(0);
- }
- me.listeners.push(l);
+ len = events.length,
+ i = 0,
+ oldName,
+ newName;
+
+ for (; i < len; i++) {
+ oldName = events[i].substr(prefix.length);
+ newName = prefix + oldName;
+ me.events[newName] = me.events[newName] || true;
+ origin.on(oldName, me.createRelayer(newName));
}
},
- createListener: function(fn, scope, o){
- o = o || {};
- scope = scope || this.obj;
- var l = {
- fn: fn,
- scope: scope,
- options: o
- }, h = fn;
- if(o.target){
- h = createTargeted(h, o, scope);
- }
- if(o.delay){
- h = createDelayed(h, o, l, scope);
- }
- if(o.single){
- h = createSingle(h, this, fn, scope);
- }
- if(o.buffer){
- h = createBuffered(h, o, l, scope);
- }
- l.fireFn = h;
- return l;
+<span id='Ext-util-Observable-method-createRelayer'> /**
+</span> * @private
+ * Creates an event handling function which refires the event from this object as the passed event name.
+ * @param newName
+ * @returns {Function}
+ */
+ createRelayer: function(newName){
+ var me = this;
+ return function(){
+ return me.fireEvent.apply(me, [newName].concat(Array.prototype.slice.call(arguments, 0, -1)));
+ };
},
- findListener : function(fn, scope){
- var list = this.listeners,
- i = list.length,
- l;
-
- scope = scope || this.obj;
- while(i--){
- l = list[i];
- if(l){
- if(l.fn == fn && l.scope == scope){
- return i;
+<span id='Ext-util-Observable-method-enableBubble'> /**
+</span> * Enables events fired by this Observable to bubble up an owner hierarchy by calling `this.getBubbleTarget()` if
+ * present. There is no implementation in the Observable base class.
+ *
+ * This is commonly used by Ext.Components to bubble events to owner Containers.
+ * See {@link Ext.Component#getBubbleTarget}. The default implementation in Ext.Component returns the
+ * Component's immediate owner. But if a known target is required, this can be overridden to access the
+ * required target more quickly.
+ *
+ * Example:
+ *
+ * Ext.override(Ext.form.field.Base, {
+ * // Add functionality to Field's initComponent to enable the change event to bubble
+ * initComponent : Ext.Function.createSequence(Ext.form.field.Base.prototype.initComponent, function() {
+ * this.enableBubble('change');
+ * }),
+ *
+ * // We know that we want Field's events to bubble directly to the FormPanel.
+ * getBubbleTarget : function() {
+ * if (!this.formPanel) {
+ * this.formPanel = this.findParentByType('form');
+ * }
+ * return this.formPanel;
+ * }
+ * });
+ *
+ * var myForm = new Ext.formPanel({
+ * title: 'User Details',
+ * items: [{
+ * ...
+ * }],
+ * listeners: {
+ * change: function() {
+ * // Title goes red if form has been modified.
+ * myForm.header.setStyle('color', 'red');
+ * }
+ * }
+ * });
+ *
+ * @param {String/String[]} events The event name to bubble, or an Array of event names.
+ */
+ enableBubble: function(events) {
+ var me = this;
+ if (!Ext.isEmpty(events)) {
+ events = Ext.isArray(events) ? events: Ext.Array.toArray(arguments);
+ Ext.each(events,
+ function(ename) {
+ ename = ename.toLowerCase();
+ var ce = me.events[ename] || true;
+ if (Ext.isBoolean(ce)) {
+ ce = new Ext.util.Event(me, ename);
+ me.events[ename] = ce;
}
- }
+ ce.bubble = true;
+ });
}
- return -1;
- },
+ }
+}, function() {
+
+ this.createAlias({
+<span id='Ext-util-Observable-method-on'> /**
+</span> * @method
+ * Shorthand for {@link #addListener}.
+ * @alias Ext.util.Observable#addListener
+ */
+ on: 'addListener',
+<span id='Ext-util-Observable-method-un'> /**
+</span> * @method
+ * Shorthand for {@link #removeListener}.
+ * @alias Ext.util.Observable#removeListener
+ */
+ un: 'removeListener',
+<span id='Ext-util-Observable-method-mon'> /**
+</span> * @method
+ * Shorthand for {@link #addManagedListener}.
+ * @alias Ext.util.Observable#addManagedListener
+ */
+ mon: 'addManagedListener',
+<span id='Ext-util-Observable-method-mun'> /**
+</span> * @method
+ * Shorthand for {@link #removeManagedListener}.
+ * @alias Ext.util.Observable#removeManagedListener
+ */
+ mun: 'removeManagedListener'
+ });
+
+ //deprecated, will be removed in 5.0
+ this.observeClass = this.observe;
+
+ Ext.apply(Ext.util.Observable.prototype, function(){
+ // this is considered experimental (along with beforeMethod, afterMethod, removeMethodListener?)
+ // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
+ // private
+ function getMethodEvent(method){
+ var e = (this.methodEvents = this.methodEvents || {})[method],
+ returnValue,
+ v,
+ cancel,
+ obj = this;
+
+ if (!e) {
+ this.methodEvents[method] = e = {};
+ e.originalFn = this[method];
+ e.methodName = method;
+ e.before = [];
+ e.after = [];
+
+ var makeCall = function(fn, scope, args){
+ if((v = fn.apply(scope || obj, args)) !== undefined){
+ if (typeof v == 'object') {
+ if(v.returnValue !== undefined){
+ returnValue = v.returnValue;
+ }else{
+ returnValue = v;
+ }
+ cancel = !!v.cancel;
+ }
+ else
+ if (v === false) {
+ cancel = true;
+ }
+ else {
+ returnValue = v;
+ }
+ }
+ };
+
+ this[method] = function(){
+ var args = Array.prototype.slice.call(arguments, 0),
+ b, i, len;
+ returnValue = v = undefined;
+ cancel = false;
+
+ for(i = 0, len = e.before.length; i < len; i++){
+ b = e.before[i];
+ makeCall(b.fn, b.scope, args);
+ if (cancel) {
+ return returnValue;
+ }
+ }
- isListening : function(fn, scope){
- return this.findListener(fn, scope) != -1;
- },
+ if((v = e.originalFn.apply(obj, args)) !== undefined){
+ returnValue = v;
+ }
- removeListener : function(fn, scope){
- var index,
- l,
- k,
- me = this,
- ret = FALSE;
- if((index = me.findListener(fn, scope)) != -1){
- if (me.firing) {
- me.listeners = me.listeners.slice(0);
- }
- l = me.listeners[index];
- if(l.task) {
- l.task.cancel();
- delete l.task;
- }
- k = l.tasks && l.tasks.length;
- if(k) {
- while(k--) {
- l.tasks[k].cancel();
- }
- delete l.tasks;
+ for(i = 0, len = e.after.length; i < len; i++){
+ b = e.after[i];
+ makeCall(b.fn, b.scope, args);
+ if (cancel) {
+ return returnValue;
+ }
+ }
+ return returnValue;
+ };
}
- me.listeners.splice(index, 1);
- ret = TRUE;
- }
- return ret;
- },
-
- // Iterate to stop any buffered/delayed events
- clearListeners : function(){
- var me = this,
- l = me.listeners,
- i = l.length;
- while(i--) {
- me.removeListener(l[i].fn, l[i].scope);
+ return e;
}
- },
- fire : function(){
- var me = this,
- listeners = me.listeners,
- len = listeners.length,
- i = 0,
- l;
-
- if(len > 0){
- me.firing = TRUE;
- var args = Array.prototype.slice.call(arguments, 0);
- for (; i < len; i++) {
- l = listeners[i];
- if(l && l.fireFn.apply(l.scope || me.obj || window, args) === FALSE) {
- return (me.firing = FALSE);
+ return {
+ // these are considered experimental
+ // allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call
+ // adds an 'interceptor' called before the original method
+ beforeMethod : function(method, fn, scope){
+ getMethodEvent.call(this, method).before.push({
+ fn: fn,
+ scope: scope
+ });
+ },
+
+ // adds a 'sequence' called after the original method
+ afterMethod : function(method, fn, scope){
+ getMethodEvent.call(this, method).after.push({
+ fn: fn,
+ scope: scope
+ });
+ },
+
+ removeMethodListener: function(method, fn, scope){
+ var e = this.getMethodEvent(method),
+ i, len;
+ for(i = 0, len = e.before.length; i < len; i++){
+ if(e.before[i].fn == fn && e.before[i].scope == scope){
+ Ext.Array.erase(e.before, i, 1);
+ return;
+ }
}
- }
- }
- me.firing = FALSE;
- return TRUE;
- }
+ for(i = 0, len = e.after.length; i < len; i++){
+ if(e.after[i].fn == fn && e.after[i].scope == scope){
+ Ext.Array.erase(e.after, i, 1);
+ return;
+ }
+ }
+ },
-};
-})();
-</pre>
+ toggleEventLogging: function(toggle) {
+ Ext.util.Observable[toggle ? 'capture' : 'releaseCapture'](this, function(en) {
+ if (Ext.isDefined(Ext.global.console)) {
+ Ext.global.console.log(en, arguments);
+ }
+ });
+ }
+ };
+ }());
+});
+</pre>
</body>
-</html>
\ No newline at end of file
+</html>
git.ithinksw.org / extjs.git / blobdiff