Upgrade to ExtJS 3.3.1 - Released 11/30/2010
[extjs.git] / docs / output / Ext.util.Observable.html
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-        <div class="body-wrap">
-        <div class="top-tools">
-            <a class="inner-link" href="#Ext.util.Observable-props"><img src="../resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>
-            <a class="inner-link" href="#Ext.util.Observable-methods"><img src="../resources/images/default/s.gif" class="item-icon icon-method">Methods</a>
-            <a class="inner-link" href="#Ext.util.Observable-events"><img src="../resources/images/default/s.gif" class="item-icon icon-event">Events</a>
-                            <a class="inner-link" href="#Ext.util.Observable-configs"><img src="../resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>
-                        <a class="bookmark" href="../docs/?class=Ext.util.Observable"><img src="../resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a>
-        </div>
-                <h1>Class Ext.util.Observable</h1>
-        <table cellspacing="0">
-            <tr><td class="label">Package:</td><td class="hd-info">Ext.util</td></tr>
-            <tr><td class="label">Defined In:</td><td class="hd-info"><a href="../src/Observable.js" target="_blank">Observable.js</a></td></tr>
-            <tr><td class="label">Class:</td><td class="hd-info">Observable</td></tr>
-                        <tr><td class="label">Subclasses:</td><td class="hd-info"><a ext:cls="Ext.Component" href="output/Ext.Component.html">Component</a>, <a ext:cls="Ext.History" href="output/Ext.History.html">History</a>, <a ext:cls="Ext.Resizable" href="output/Ext.Resizable.html">Resizable</a>, <a ext:cls="Ext.SplitBar" href="output/Ext.SplitBar.html">SplitBar</a>, <a ext:cls="Ext.Updater" href="output/Ext.Updater.html">Updater</a>, <a ext:cls="Ext.air.NativeObservable" href="output/Ext.air.NativeObservable.html">NativeObservable</a>, <a ext:cls="Ext.data.Connection" href="output/Ext.data.Connection.html">Connection</a>, <a ext:cls="Ext.data.DataProxy" href="output/Ext.data.DataProxy.html">DataProxy</a>, <a ext:cls="Ext.data.Node" href="output/Ext.data.Node.html">Node</a>, <a ext:cls="Ext.data.Store" href="output/Ext.data.Store.html">Store</a>, <a ext:cls="Ext.data.Tree" href="output/Ext.data.Tree.html">Tree</a>, <a ext:cls="Ext.form.BasicForm" href="output/Ext.form.BasicForm.html">BasicForm</a>, <a ext:cls="Ext.grid.AbstractSelectionModel" href="output/Ext.grid.AbstractSelectionModel.html">AbstractSelectionModel</a>, <a ext:cls="Ext.grid.ColumnModel" href="output/Ext.grid.ColumnModel.html">ColumnModel</a>, <a ext:cls="Ext.grid.GridView" href="output/Ext.grid.GridView.html">GridView</a>, <a ext:cls="Ext.grid.PropertyStore" href="output/Ext.grid.PropertyStore.html">PropertyStore</a>, <a ext:cls="Ext.menu.Menu" href="output/Ext.menu.Menu.html">Menu</a>, <a ext:cls="Ext.tree.DefaultSelectionModel" href="output/Ext.tree.DefaultSelectionModel.html">DefaultSelectionModel</a>, <a ext:cls="Ext.tree.MultiSelectionModel" href="output/Ext.tree.MultiSelectionModel.html">MultiSelectionModel</a>, <a ext:cls="Ext.tree.TreeLoader" href="output/Ext.tree.TreeLoader.html">TreeLoader</a>, <a ext:cls="Ext.util.ClickRepeater" href="output/Ext.util.ClickRepeater.html">ClickRepeater</a>, <a ext:cls="Ext.util.MixedCollection" href="output/Ext.util.MixedCollection.html">MixedCollection</a></td></tr>
-                                    <tr><td class="label">Extends:</td><td class="hd-info">Object</td></tr>
-                    </table>
-        <div class="description">
-            *
-Abstract base class that provides a common interface for publishing events. Subclasses are expected to
-to have a property "events" with all the events defined.<br>
+<div class="body-wrap" xmlns:ext="http://www.extjs.com"><div class="top-tools"><a class="inner-link" href="#Ext.util.Observable-props"><img src="resources/images/default/s.gif" class="item-icon icon-prop">Properties</a>&#13;<a class="inner-link" href="#Ext.util.Observable-methods"><img src="resources/images/default/s.gif" class="item-icon icon-method">Methods</a>&#13;<a class="inner-link" href="#Ext.util.Observable-events"><img src="resources/images/default/s.gif" class="item-icon icon-event">Events</a>&#13;<a class="inner-link" href="#Ext.util.Observable-configs"><img src="resources/images/default/s.gif" class="item-icon icon-config">Config Options</a>&#13;<a class="bookmark" href="../docs/?class=Ext.util.Observable"><img src="resources/images/default/s.gif" class="item-icon icon-fav">Direct Link</a>&#13;</div><h1>Class <a href="source/Observable.html#cls-Ext.util.Observable">Ext.util.Observable</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.util</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/Observable.html#cls-Ext.util.Observable">Observable.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/Observable.html#cls-Ext.util.Observable">Observable</a></td></tr><tr><td class="label">Subclasses:</td><td class="hd-info"><a href="output/Ext.Component.html" ext:cls="Ext.Component">Component</a>,&#13;<a href="output/Ext.Direct.html" ext:cls="Ext.Direct">Direct</a>,&#13;<a href="output/Ext.History.html" ext:cls="Ext.History">History</a>,&#13;<a href="output/Ext.Resizable.html" ext:cls="Ext.Resizable">Resizable</a>,&#13;<a href="output/Ext.SplitBar.html" ext:cls="Ext.SplitBar">SplitBar</a>,&#13;<a href="output/Ext.Updater.html" ext:cls="Ext.Updater">Updater</a>,&#13;<a href="output/Ext.data.Connection.html" ext:cls="Ext.data.Connection">Connection</a>,&#13;<a href="output/Ext.data.DataProxy.html" ext:cls="Ext.data.DataProxy">DataProxy</a>,&#13;<a href="output/Ext.data.Node.html" ext:cls="Ext.data.Node">Node</a>,&#13;<a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Store</a>,&#13;<a href="output/Ext.data.Tree.html" ext:cls="Ext.data.Tree">Tree</a>,&#13;<a href="output/Ext.dd.DragTracker.html" ext:cls="Ext.dd.DragTracker">DragTracker</a>,&#13;<a href="output/Ext.direct.Provider.html" ext:cls="Ext.direct.Provider">Provider</a>,&#13;<a href="output/Ext.form.BasicForm.html" ext:cls="Ext.form.BasicForm">BasicForm</a>,&#13;<a href="output/Ext.grid.AbstractSelectionModel.html" ext:cls="Ext.grid.AbstractSelectionModel">AbstractSelectionModel</a>,&#13;<a href="output/Ext.grid.ColumnModel.html" ext:cls="Ext.grid.ColumnModel">ColumnModel</a>,&#13;<a href="output/Ext.grid.GridView.html" ext:cls="Ext.grid.GridView">GridView</a>,&#13;<a href="output/Ext.grid.PropertyStore.html" ext:cls="Ext.grid.PropertyStore">PropertyStore</a>,&#13;<a href="output/Ext.list.ColumnResizer.html" ext:cls="Ext.list.ColumnResizer">ColumnResizer</a>,&#13;<a href="output/Ext.list.Sorter.html" ext:cls="Ext.list.Sorter">Sorter</a>,&#13;<a href="output/Ext.tree.DefaultSelectionModel.html" ext:cls="Ext.tree.DefaultSelectionModel">DefaultSelectionModel</a>,&#13;<a href="output/Ext.tree.MultiSelectionModel.html" ext:cls="Ext.tree.MultiSelectionModel">MultiSelectionModel</a>,&#13;<a href="output/Ext.tree.TreeLoader.html" ext:cls="Ext.tree.TreeLoader">TreeLoader</a>,&#13;<a href="output/Ext.util.ClickRepeater.html" ext:cls="Ext.util.ClickRepeater">ClickRepeater</a>,&#13;<a href="output/Ext.util.MixedCollection.html" ext:cls="Ext.util.MixedCollection">MixedCollection</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info">Object</td></tr></table><div class="description">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>
 For example:
 For example:
-<pre><code>Employee = <b>function</b>(name){
-    <b>this</b>.name = name;
-    <b>this</b>.addEvents({
-        <em>"fired"</em> : true,
-        <em>"quit"</em> : true
-    });
- }
- Ext.extend(Employee, Ext.util.Observable);</code></pre>        </div>
-        
-        <div class="hr"></div>
-                <a id="Ext.util.Observable-configs"></a>
-        <h2>Config Options</h2>
-        <table cellspacing="0" class="member-table">
-            <tr>
-                <th class="sig-header" colspan="2">Config Options</th>
-                <th class="msource-header">Defined By</th>
-            </tr>
-                <tr class="config-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-listeners"></a>\r
-            <b>listeners</b> : Object            <div class="mdesc">\r
-                        <div class="short">(optional) A config object containing one or more event handlers to be added to this object during initialization. Th...</div>\r
-            <div class="long">\r
-                (optional) 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 <a ext:cls="Ext.util.Observable" ext:member="addListener" href="output/Ext.util.Observable.html#addListener">addListener</a> example for attaching multiple handlers at once.            </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-            </table>
-                <a id="Ext.util.Observable-props"></a>
-        <h2>Public Properties</h2>
-        <div class="no-members">This class has no public properties.</div>        <a id="Ext.util.Observable-methods"></a>
-        <h2>Public Methods</h2>
-                <table cellspacing="0" class="member-table">
-            <tr>
-                <th class="sig-header" colspan="2">Method</th>
-                <th class="msource-header">Defined By</th>
-            </tr>
-                <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-Observable.capture"></a>\r
-            <b>Observable.capture</b>(&nbsp;<code>Observable o</code>, <code>Function fn</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">&lt;static&gt; Starts capture on the specified Observable. All events will be passed
-to the supplied function with th...</div>\r
-            <div class="long">\r
-                &lt;static&gt; Starts capture on the specified Observable. All events will be passed
+<pre><code>Employee = Ext.extend(Ext.util.Observable, {
+    constructor: <b>function</b>(config){
+        this.name = config.name;
+        this.addEvents({
+            <em>"fired"</em> : true,
+            <em>"quit"</em> : true
+        });
+
+        <i>// Copy configured listeners into *this* object so that the base class&#39;s</i>
+        <i>// constructor will add them.</i>
+        this.listeners = config.listeners;
+
+        <i>// Call our superclass constructor to complete construction process.</i>
+        Employee.superclass.constructor.call(this, config)
+    }
+});</code></pre>
+This could then be used like this:<pre><code><b>var</b> newEmployee = <b>new</b> Employee({
+    name: employeeName,
+    listeners: {
+        quit: <b>function</b>() {
+            <i>// By <b>default</b>, <em>"this"</em> will be the object that fired the event.</i>
+            alert(this.name + <em>" has quit!"</em>);
+        }
+    }
+});</code></pre></div><div class="hr"></div><a id="Ext.util.Observable-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-listeners"></a><b><a href="source/Observable.html#cfg-Ext.util.Observable-listeners">listeners</a></b> : Object<div class="mdesc"><div class="short">A config object containing one or more event handlers to be added to this
+object during initialization.  This should ...</div><div class="long"><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
+<a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> example for attaching multiple handlers at once.</p>
+<br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></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 <a href="output/Ext.DataView.html" ext:cls="Ext.DataView">DataView</a>'s
+<b><code><a href="output/Ext.DataView.html#Ext.DataView-click" ext:member="click" ext:cls="Ext.DataView">click</a></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><a href="output/Ext.Component.html#Ext.Component-getEl" ext:member="getEl" ext:cls="Ext.Component">Element</a></i> after the Component
+has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
+<i>// The Component is appended to the argument list of all handler functions.</i>
+Ext.DomObserver = Ext.extend(Object, {
+    constructor: <b>function</b>(config) {
+        this.listeners = config.listeners ? config.listeners : config;
+    },
+
+    <i>// Component passes itself into plugin&#39;s init method</i>
+    init: <b>function</b>(c) {
+        <b>var</b> p, l = this.listeners;
+        <b>for</b> (p <b>in</b> l) {
+            <b>if</b> (Ext.isFunction(l[p])) {
+                l[p] = this.createHandler(l[p], c);
+            } <b>else</b> {
+                l[p].fn = this.createHandler(l[p].fn, c);
+            }
+        }
+
+        <i>// Add the listeners to the Element immediately following the render call</i>
+        c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
+            <b>var</b> e = c.getEl();
+            <b>if</b> (e) {
+                e.on(l);
+            }
+        });
+    },
+
+    createHandler: <b>function</b>(fn, c) {
+        <b>return</b> <b>function</b>(e) {
+            fn.call(this, e, c);
+        };
+    }
+});
+
+<b>var</b> combo = <b>new</b> Ext.form.ComboBox({
+
+    <i>// Collapse combo when its element is clicked on</i>
+    plugins: [ <b>new</b> Ext.DomObserver({
+        click: <b>function</b>(evt, comp) {
+            comp.collapse();
+        }
+    })],
+    store: myStore,
+    typeAhead: true,
+    mode: <em>'local'</em>,
+    triggerAction: <em>'all'</em>
+});</code></pre></p></div></div></td><td class="msource">Observable</td></tr></tbody></table><a id="Ext.util.Observable-props"></a><h2>Public Properties</h2><div class="no-members">This class has no public properties.</div><a id="Ext.util.Observable-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-Observable.capture"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-Observable.capture">Observable.capture</a></b>(&nbsp;<code>Observable&nbsp;o</code>,&nbsp;<code>Function&nbsp;fn</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">&lt;static&gt;&nbsp;Starts capture on the specified Observable. All events will be passed
+to the supplied function with the event name + ...</div><div class="long">&lt;static&gt;&nbsp;Starts capture on the specified Observable. All events will be passed
 to the supplied function with the event name + standard signature of the event
 <b>before</b> the event is fired. If the supplied function returns false,
 to the supplied function with the event name + standard signature of the event
 <b>before</b> the event is fired. If the supplied function returns false,
-the event will not fire.    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>o</code> : Observable<div class="sub-desc">The Observable to capture</div></li><li><code>fn</code> : Function<div class="sub-desc">The function to call</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (this object) for the fn</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-Observable.releaseCapture"></a>\r
-            <b>Observable.releaseCapture</b>(&nbsp;<code>Observable o</code>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">&lt;static&gt; Removes <b>all</b> added captures from the Observable.</div>\r
-            <div class="long">\r
-                &lt;static&gt; Removes <b>all</b> added captures from the Observable.    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>o</code> : Observable<div class="sub-desc">The Observable to release</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-addEvents"></a>\r
-            <b>addEvents</b>(&nbsp;<code>Object object</code>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Used to define events on this Observable</div>\r
-            <div class="long">\r
-                Used to define events on this Observable    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>object</code> : Object<div class="sub-desc">The object with the events defined</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-addListener"></a>\r
-            <b>addListener</b>(&nbsp;<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>, <span class="optional" title="Optional">[<code>Object options</code>]</span>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Appends an event handler to this component</div>\r
-            <div class="long">\r
-                Appends an event handler to this component    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope in which to execute the handler
-function. The handler function's "this" context.</div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration
+the event will not fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Observable<div class="sub-desc">The Observable to capture events from.</div></li><li><code>fn</code> : Function<div class="sub-desc">The function to call when an event is fired.</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code>this</code> reference) in which the function is executed. Defaults to the Observable firing the event.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-Observable.observeClass"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-Observable.observeClass">Observable.observeClass</a></b>(&nbsp;<code>Function&nbsp;c</code>,&nbsp;<code>Object&nbsp;listeners</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">&lt;static&gt;&nbsp;Sets observability on the passed class constructor.
+This makes any event fired on any instance of the passed class al...</div><div class="long">&lt;static&gt;&nbsp;Sets observability on the passed class constructor.<p>
+<p>This makes any event fired on any instance of the passed class also fire a single event through
+the <i>class</i> allowing for central handling of events on many instances at once.</p>
+<p>Usage:</p><pre><code>Ext.util.Observable.observeClass(Ext.data.Connection);
+Ext.data.Connection.on(<em>'beforerequest'</em>, <b>function</b>(con, options) {
+    console.log(<em>'Ajax request made to '</em> + options.url);
+});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>c</code> : Function<div class="sub-desc">The class constructor to make observable.</div></li><li><code>listeners</code> : Object<div class="sub-desc">An object containing a series of listeners to add. See <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-Observable.releaseCapture"></a><b><a href="source/Observable.html#method-Ext.util.Observable-Observable.releaseCapture">Observable.releaseCapture</a></b>(&nbsp;<code>Observable&nbsp;o</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">&lt;static&gt;&nbsp;Removes all added captures from the Observable.</div><div class="long">&lt;static&gt;&nbsp;Removes <b>all</b> added captures from the Observable.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Observable<div class="sub-desc">The Observable to release</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addEvents">addEvents</a></b>(&nbsp;<code>Object|String&nbsp;o</code>,&nbsp;<code>string&nbsp;Optional.</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Adds the specified events to the list of events which this Observable may fire.</div><div class="long">Adds the specified events to the list of events which this Observable may fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object|String<div class="sub-desc">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.</div></li><li><code>Optional.</code> : string<div class="sub-desc">Event name if multiple event names are being passed as separate parameters.
+Usage:<pre><code>this.addEvents(<em>'storeloaded'</em>, <em>'storecleared'</em>);</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-addListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-addListener">addListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Appends an event handler to this object.</div><div class="long">Appends an event handler to this object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to listen for.</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes.</div></li><li><code>scope</code> : Object<div class="sub-desc">(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></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.
 properties. This may contain any of the following properties:<ul>
 properties. This may contain any of the following properties:<ul>
-<li><b>scope</b> : Object<p class="sub-desc">The scope in which to execute the handler function. The handler function's "this" context.</p></li>
-<li><b>delay</b> : Number<p class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</p></li>
-<li><b>single</b> : Boolean<p class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</p></li>
-<li><b>buffer</b> : Number<p class="sub-desc">Causes the handler to be scheduled to run in an <a ext:cls="Ext.util.DelayedTask" href="output/Ext.util.DelayedTask.html">Ext.util.DelayedTask</a> delayed
+<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 <a href="output/Ext.util.DelayedTask.html" ext:cls="Ext.util.DelayedTask">Ext.util.DelayedTask</a> delayed
 by the specified number of milliseconds. If the event fires again within that time, the original
 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.</p></li>
+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>
 </ul><br>
 <p>
 <b>Combining Options</b><br>
 Using the options argument, it is possible to combine different types of listeners:<br>
 <br>
-A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)
-<pre><code>el.on(<em>'click'</em>, <b>this</b>.onClick, <b>this</b>, {
-    single: true,
-    delay: 100,
-    forumId: 4
+A delayed, one-time listener.
+<pre><code>myDataView.on(<em>'click'</em>, 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>
 });</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>foo.on({
-    <em>'click'</em> : {
-        fn: <b>this</b>.onClick,
-        scope: <b>this</b>,
-        delay: 100
-    },
-    <em>'mouseover'</em> : {
-        fn: <b>this</b>.onMouseOver,
-        scope: <b>this</b>
-    },
-    <em>'mouseout'</em> : {
-        fn: <b>this</b>.onMouseOut,
-        scope: <b>this</b>
-    }
+<pre><code>myGridPanel.on({
+<em>'click'</em> : {
+    fn: this.onClick,
+    scope: this,
+    delay: 100
+},
+<em>'mouseover'</em> : {
+    fn: this.onMouseOver,
+    scope: this
+},
+<em>'mouseout'</em> : {
+    fn: this.onMouseOut,
+    scope: this
+}
 });</code></pre>
 <p>
 Or a shorthand syntax:<br>
 });</code></pre>
 <p>
 Or a shorthand syntax:<br>
-<pre><code>foo.on({
-    <em>'click'</em> : <b>this</b>.onClick,
-    <em>'mouseover'</em> : <b>this</b>.onMouseOver,
-    <em>'mouseout'</em> : <b>this</b>.onMouseOut,
-     scope: <b>this</b>
-});</code></pre></div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-fireEvent"></a>\r
-            <b>fireEvent</b>(&nbsp;<code>String eventName</code>, <code>Object... args</code>&nbsp;) : Boolean            <div class="mdesc">\r
-                        <div class="short">Fires the specified event with the passed parameters (minus the event name).</div>\r
-            <div class="long">\r
-                Fires the specified event with the passed parameters (minus the event name).    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc"></div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true</div></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-hasListener"></a>\r
-            <b>hasListener</b>(&nbsp;<code>String eventName</code>&nbsp;) : Boolean            <div class="mdesc">\r
-                        <div class="short">Checks to see if this object has any listeners for a specified event</div>\r
-            <div class="long">\r
-                Checks to see if this object has any listeners for a specified event    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-on"></a>\r
-            <b>on</b>(&nbsp;<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>, <span class="optional" title="Optional">[<code>Object options</code>]</span>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Appends an event handler to this element (shorthand for addListener)</div>\r
-            <div class="long">\r
-                Appends an event handler to this element (shorthand for addListener)    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope in which to execute the handler
-function. The handler function's "this" context.</div></li><li><code>options</code> : Object<div class="sub-desc">(optional)</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-purgeListeners"></a>\r
-            <b>purgeListeners</b>() : void            <div class="mdesc">\r
-                        <div class="short">Removes all listeners for this object</div>\r
-            <div class="long">\r
-                Removes all listeners for this object    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li>None.</li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-relayEvents"></a>\r
-            <b>relayEvents</b>(&nbsp;<code>Object o</code>, <code>Array events</code>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.</div>\r
-            <div class="long">\r
-                Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-removeListener"></a>\r
-            <b>removeListener</b>(&nbsp;<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Removes a listener</div>\r
-            <div class="long">\r
-                Removes a listener    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (this object) for the handler</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-resumeEvents"></a>\r
-            <b>resumeEvents</b>() : void            <div class="mdesc">\r
-                        <div class="short">Resume firing events. (see <a ext:cls="Ext.util.Observable" ext:member="suspendEvents" href="output/Ext.util.Observable.html#suspendEvents">suspendEvents</a>)</div>\r
-            <div class="long">\r
-                Resume firing events. (see <a ext:cls="Ext.util.Observable" ext:member="suspendEvents" href="output/Ext.util.Observable.html#suspendEvents">suspendEvents</a>)    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li>None.</li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row alt expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-suspendEvents"></a>\r
-            <b>suspendEvents</b>() : void            <div class="mdesc">\r
-                        <div class="short">Suspend the firing of all events. (see <a ext:cls="Ext.util.Observable" ext:member="resumeEvents" href="output/Ext.util.Observable.html#resumeEvents">resumeEvents</a>)</div>\r
-            <div class="long">\r
-                Suspend the firing of all events. (see <a ext:cls="Ext.util.Observable" ext:member="resumeEvents" href="output/Ext.util.Observable.html#resumeEvents">resumeEvents</a>)    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li>None.</li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-        <tr class="method-row expandable">\r
-        <td class="micon"><a class="exi" href="#expand">&nbsp;</a></td>\r
-        <td class="sig">\r
-        <a id="Ext.util.Observable-un"></a>\r
-            <b>un</b>(&nbsp;<code>String eventName</code>, <code>Function handler</code>, <span class="optional" title="Optional">[<code>Object scope</code>]</span>&nbsp;) : void            <div class="mdesc">\r
-                        <div class="short">Removes a listener (shorthand for removeListener)</div>\r
-            <div class="long">\r
-                Removes a listener (shorthand for removeListener)    <div class="mdetail-params">\r
-        <strong>Parameters:</strong>\r
-        <ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (this object) for the handler</div></li>        </ul>\r
-        <strong>Returns:</strong>\r
-        <ul>\r
-            <li><code>void</code></li>\r
-        </ul>\r
-    </div>\r
-                </div>\r
-                        </div>\r
-        </td>\r
-        <td class="msource">Observable</td>\r
-    </tr>\r
-            </table>
-                <a id="Ext.util.Observable-events"></a>
-        <h2>Public Events</h2>
-        <div class="no-members">This class has no public events.</div>
-        </div>
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+<pre><code>myGridPanel.on({
+<em>'click'</em> : this.onClick,
+<em>'mouseover'</em> : this.onMouseOver,
+<em>'mouseout'</em> : this.onMouseOut,
+ scope: this
+});</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-enableBubble"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-enableBubble">enableBubble</a></b>(&nbsp;<code>String/Array&nbsp;events</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling
+this.getBubbleTarget() if present....</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
+<code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
+<p>This is commonly used by Ext.Components to bubble events to owner Containers. See <a href="output/Ext.Component.getBubbleTarget.html" ext:cls="Ext.Component.getBubbleTarget">Ext.Component.getBubbleTarget</a>. 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.</p>
+<p>Example:</p><pre><code>Ext.override(Ext.form.Field, {
+    <i>//  Add functionality to Field&#39;s initComponent to enable the change event to bubble</i>
+    initComponent : Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {
+        this.enableBubble(<em>'change'</em>);
+    }),
+
+    <i>//  We know that we want Field&#39;s events to bubble directly to the FormPanel.</i>
+    getBubbleTarget : <b>function</b>() {
+        <b>if</b> (!this.formPanel) {
+            this.formPanel = this.findParentByType(<em>'form'</em>);
+        }
+        <b>return</b> this.formPanel;
+    }
+});
+
+<b>var</b> myForm = <b>new</b> Ext.formPanel({
+    title: <em>'User Details'</em>,
+    items: [{
+        ...
+    }],
+    listeners: {
+        change: <b>function</b>() {
+            <i>// Title goes red <b>if</b> form has been modified.</i>
+            myForm.header.setStyle(<em>'color'</em>, <em>'red'</em>);
+        }
+    }
+});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : String/Array<div class="sub-desc">The event name to bubble, or an Array of event names.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-fireEvent"></a><b><a href="source/Observable.html#method-Ext.util.Observable-fireEvent">fireEvent</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Object...&nbsp;args</code>&nbsp;)
+    :
+                                        Boolean<div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
+An event may be set to bubble up an Obse...</div><div class="long"><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 <a href="output/Ext.Component.html#Ext.Component-getBubbleTarget" ext:member="getBubbleTarget" ext:cls="Ext.Component">Ext.Component.getBubbleTarget</a>)
+by calling <a href="output/Ext.util.Observable.html#Ext.util.Observable-enableBubble" ext:member="enableBubble" ext:cls="Ext.util.Observable">enableBubble</a>.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to fire.</div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers.</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true.</div></li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-hasListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-hasListener">hasListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>&nbsp;)
+    :
+                                        Boolean<div class="mdesc"><div class="short">Checks to see if this object has any listeners for a specified event</div><div class="long">Checks to see if this object has any listeners for a specified event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-on"></a><b><a href="source/Observable.html#method-Ext.util.Observable-on">on</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;options</code>]</span>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Appends an event handler to this object (shorthand for addListener.)</div><div class="long">Appends an event handler to this object (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(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></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-purgeListeners"></a><b><a href="source/Observable.html#method-Ext.util.Observable-purgeListeners">purgeListeners</a></b>()
+    :
+                                        void<div class="mdesc"><div class="short">Removes all listeners for this object</div><div class="long">Removes all listeners for this object<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-relayEvents"></a><b><a href="source/Observable-more.html#method-Ext.util.Observable-relayEvents">relayEvents</a></b>(&nbsp;<code>Object&nbsp;o</code>,&nbsp;<code>Array&nbsp;events</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Relays selected events from the specified Observable as if the events were fired by this.</div><div class="long">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-removeListener"></a><b><a href="source/Observable.html#method-Ext.util.Observable-removeListener">removeListener</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Removes an event handler.</div><div class="long">Removes an event handler.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-resumeEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-resumeEvents">resumeEvents</a></b>()
+    :
+                                        void<div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
+If events were suspended using the queueSuspended parameter, then all
+event...</div><div class="long">Resume firing events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-suspendEvents" ext:member="suspendEvents" ext:cls="Ext.util.Observable">suspendEvents</a>)
+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.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-suspendEvents"></a><b><a href="source/Observable.html#method-Ext.util.Observable-suspendEvents">suspendEvents</a></b>(&nbsp;<code>Boolean&nbsp;queueSuspended</code>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Suspend the firing of all events. (see resumeEvents)</div><div class="long">Suspend the firing of all events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a>)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>queueSuspended</code> : Boolean<div class="sub-desc">Pass as true to queue up suspended events to be fired
+after the <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a> call instead of discarding all suspended events;</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi">&nbsp;</a></td><td class="sig"><a id="Ext.util.Observable-un"></a><b><a href="source/Observable.html#method-Ext.util.Observable-un">un</a></b>(&nbsp;<code>String&nbsp;eventName</code>,&nbsp;<code>Function&nbsp;handler</code>,&nbsp;<span title="Optional" class="optional">[<code>Object&nbsp;scope</code>]</span>&nbsp;)
+    :
+                                        void<div class="mdesc"><div class="short">Removes an event handler (shorthand for removeListener.)</div><div class="long">Removes an event handler (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-removeListener" ext:member="removeListener" ext:cls="Ext.util.Observable">removeListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">Observable</td></tr></tbody></table><a id="Ext.util.Observable-events"></a><h2>Public Events</h2><div class="no-members">This class has no public events.</div></div>
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