[Z3lab-checkins] r2747 - cpsskins/branches/jmo-perspectives/ui/framework

[jmorliaguet]

Author: jmorliaguet
Date: Thu Mar 30 20:10:14 2006
New Revision: 2747

Modified:
   cpsskins/branches/jmo-perspectives/ui/framework/prototype.js
Log:

prototype.js update

* Cache methods added to DOM elements with Element.extend to prevent memory
leaks in IE. Closes #4465. [EMAIL PROTECTED], sam]



Modified: cpsskins/branches/jmo-perspectives/ui/framework/prototype.js
==============================================================================
--- cpsskins/branches/jmo-perspectives/ui/framework/prototype.js        
(original)
+++ cpsskins/branches/jmo-perspectives/ui/framework/prototype.js        Thu Mar 
30 20:10:14 2006
@@ -902,11 +902,11 @@
   if (!element) return;
 
   if (!element._extended && element.tagName && element != window) {
-    var methods = Element.Methods;
+    var methods = Element.Methods, cache = Element.extend.cache;
     for (property in methods) {
       var value = methods[property];
       if (typeof value == 'function')
-        element[property] = value.bind(null, element);
+        element[property] = cache.findOrStore(value);
     }
   }
 
@@ -914,6 +914,14 @@
   return element;
 }
 
+Element.extend.cache = {
+  findOrStore: function(value) {
+    return this[value] = this[value] || function() {
+      return value.apply(null, [this].concat($A(arguments)));
+    }
+  }
+}
+
 Element.Methods = {
   visible: function(element) {
     return $(element).style.display != 'none';
-- 
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