-<html>
-<head>
- <title>The source code</title>
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
-</head>
-<body onload="prettyPrint();">
- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-/**\r
+<html>\r
+<head>\r
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> \r
+ <title>The source code</title>\r
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
+</head>\r
+<body onload="prettyPrint();">\r
+ <pre class="prettyprint lang-js">/**\r
// this is considered experimental (along with beforeMethod, afterMethod, removeMethodListener?)\r
// allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call\r
// private\r
function getMethodEvent(method){\r
var e = (this.methodEvents = this.methodEvents ||\r
{})[method], returnValue, v, cancel, obj = this;\r
// this is considered experimental (along with beforeMethod, afterMethod, removeMethodListener?)\r
// allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call\r
// private\r
function getMethodEvent(method){\r
var e = (this.methodEvents = this.methodEvents ||\r
{})[method], returnValue, v, cancel, obj = this;\r
var makeCall = function(fn, scope, args){\r
if (!Ext.isEmpty(v = fn.apply(scope || obj, args))) {\r
if (Ext.isObject(v)) {\r
returnValue = !Ext.isEmpty(v.returnValue) ? v.returnValue : v;\r
cancel = !!v.cancel;\r
}\r
var makeCall = function(fn, scope, args){\r
if (!Ext.isEmpty(v = fn.apply(scope || obj, args))) {\r
if (Ext.isObject(v)) {\r
returnValue = !Ext.isEmpty(v.returnValue) ? v.returnValue : v;\r
cancel = !!v.cancel;\r
}\r
this[method] = function(){\r
var args = Ext.toArray(arguments);\r
returnValue = v = undefined;\r
cancel = false;\r
this[method] = function(){\r
var args = Ext.toArray(arguments);\r
returnValue = v = undefined;\r
cancel = false;\r
Ext.each(e.before, function(b){\r
makeCall(b.fn, b.scope, args);\r
if (cancel) {\r
return returnValue;\r
}\r
});\r
Ext.each(e.before, function(b){\r
makeCall(b.fn, b.scope, args);\r
if (cancel) {\r
return returnValue;\r
}\r
});\r
return {\r
// these are considered experimental\r
// allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call\r
return {\r
// these are considered experimental\r
// allows for easier interceptor and sequences, including cancelling and overwriting the return value of the call\r
- // adds an "interceptor" called before the original method\r
- beforeMethod: function(method, fn, scope){\r
+ // adds an 'interceptor' called before the original method\r
+ beforeMethod : function(method, fn, scope){\r
- \r
- // adds a "sequence" called after the original method\r
- afterMethod: function(method, fn, scope){\r
+\r
+ // adds a 'sequence' called after the original method\r
+ afterMethod : function(method, fn, scope){\r
removeMethodListener: function(method, fn, scope){\r
var e = getMethodEvent.call(this, method), found = false;\r
Ext.each(e.before, function(b, i, arr){\r
removeMethodListener: function(method, fn, scope){\r
var e = getMethodEvent.call(this, method), found = false;\r
Ext.each(e.before, function(b, i, arr){\r
<div id="method-Ext.util.Observable-relayEvents"></div>/**\r
* Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.\r
* @param {Object} o The Observable whose events this object is to relay.\r
* @param {Array} events Array of event names to relay.\r
*/\r
<div id="method-Ext.util.Observable-relayEvents"></div>/**\r
* Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.\r
* @param {Object} o The Observable whose events this object is to relay.\r
* @param {Array} events Array of event names to relay.\r
*/\r
<div id="method-Ext.util.Observable-enableBubble"></div>/**\r
* <p>Enables events fired by this Observable to bubble up an owner hierarchy by calling\r
* <code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>\r
<div id="method-Ext.util.Observable-enableBubble"></div>/**\r
* <p>Enables events fired by this Observable to bubble up an owner hierarchy by calling\r
* <code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>\r
* access the required target more quickly.</p>\r
* <p>Example:</p><pre><code>\r
Ext.override(Ext.form.Field, {\r
* access the required target more quickly.</p>\r
* <p>Example:</p><pre><code>\r
Ext.override(Ext.form.Field, {\r
-// Add functionality to Field's initComponent to enable the change event to bubble\r
- initComponent: Ext.form.Field.prototype.initComponent.createSequence(function() {\r
+ // Add functionality to Field's initComponent to enable the change event to bubble\r
+ initComponent : Ext.form.Field.prototype.initComponent.createSequence(function() {\r
-// We know that we want Field's events to bubble directly to the FormPanel.\r
- getBubbleTarget: function() {\r
+ // We know that we want Field's events to bubble directly to the FormPanel.\r
+ getBubbleTarget : function() {\r
-// Title goes red if form has been modified.\r
- myForm.header.setStyle("color", "red");\r
+ // Title goes red if form has been modified.\r
+ myForm.header.setStyle('color', 'red');\r
* to the supplied function with the event name + standard signature of the event\r
* <b>before</b> the event is fired. If the supplied function returns false,\r
* the event will not fire.\r
* to the supplied function with the event name + standard signature of the event\r
* <b>before</b> the event is fired. If the supplied function returns false,\r
* the event will not fire.\r
- * @param {Observable} o The Observable to capture\r
- * @param {Function} fn The function to call\r
- * @param {Object} scope (optional) The scope (this object) for the fn\r
+ * @param {Observable} o The Observable to capture events from.\r
+ * @param {Function} fn The function to call when an event is fired.\r
+ * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the function is executed. Defaults to the Observable firing the event.\r
* <p>Usage:</p><pre><code>\r
Ext.util.Observable.observeClass(Ext.data.Connection);\r
Ext.data.Connection.on('beforerequest', function(con, options) {\r
* <p>Usage:</p><pre><code>\r
Ext.util.Observable.observeClass(Ext.data.Connection);\r
Ext.data.Connection.on('beforerequest', function(con, options) {\r
-Ext.util.Observable.observeClass = function(c){\r
- Ext.apply(c, new Ext.util.Observable());\r
- c.prototype.fireEvent = function(){\r
- return (c.fireEvent.apply(c, arguments) !== false) &&\r
- (Ext.util.Observable.prototype.fireEvent.apply(this, arguments) !== false);\r
- };\r
-};</pre>
-</body>
+Ext.util.Observable.observeClass = function(c, listeners){\r
+ if(c){\r
+ if(!c.fireEvent){\r
+ Ext.apply(c, new Ext.util.Observable());\r
+ Ext.util.Observable.capture(c.prototype, c.fireEvent, c);\r
+ }\r
+ if(Ext.isObject(listeners)){\r
+ c.on(listeners);\r
+ }\r
+ return c;\r
+ }\r
+};</pre> \r
+</body>\r
git.ithinksw.org / extjs.git / blobdiff