From bb2276098a5a21c35e5ee72b3097bd9d7caa919f Mon Sep 17 00:00:00 2001
From: Thomas Fuchs <thomas@fesch.at>
Date: Sat, 1 Apr 2006 19:47:31 +0000
Subject: Applied Prototype $() performance patches (#4465, #4477) and updated
 script.aculo.us [Sam Stephenson, Thomas Fuchs]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4122 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 railties/html/javascripts/effects.js | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

(limited to 'railties/html/javascripts/effects.js')

diff --git a/railties/html/javascripts/effects.js b/railties/html/javascripts/effects.js
index bcf836b83c..927400502d 100644
--- a/railties/html/javascripts/effects.js
+++ b/railties/html/javascripts/effects.js
@@ -77,9 +77,12 @@ Element.getInlineOpacity = function(element){
 }  
 
 Element.childrenWithClassName = function(element, className, findFirst) {
-  return [$A($(element).getElementsByTagName('*'))[findFirst ? 'detect' : 'select']( function(c) { 
-    return c.className ? Element.hasClassName(c, className) : false;
-  })].flatten();
+  var classNameRegExp = new RegExp("(^|\\s)" + className + "(\\s|$)");
+  var results = $A($(element).getElementsByTagName('*'))[findFirst ? 'detect' : 'select']( function(c) { 
+    return (c.className && c.className.match(classNameRegExp));
+  });
+  if(!results) results = [];
+  return results;
 }
 
 Element.forceRerendering = function(element) {
@@ -91,11 +94,6 @@ Element.forceRerendering = function(element) {
   } catch(e) { }
 };
 
-['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
- 'collectTextNodes','collectTextNodesIgnoreClass','childrenWithClassName'].each( 
-  function(f) { Element.Methods[f] = Element[f]; } 
-);
-
 /*--------------------------------------------------------------------------*/
 
 Array.prototype.call = function() {
@@ -943,11 +941,18 @@ Effect.Fold = function(element) {
         effect.element.setStyle(oldStyle);
       } });
   }}, arguments[1] || {}));
-}
+};
+
+['setOpacity','getOpacity','getInlineOpacity','forceRerendering','setContentZoom',
+ 'collectTextNodes','collectTextNodesIgnoreClass','childrenWithClassName'].each( 
+  function(f) { Element.Methods[f] = Element[f]; }
+);
 
 Element.Methods.visualEffect = function(element, effect, options) {
   s = effect.gsub(/_/, '-').camelize();
   effect_class = s.charAt(0).toUpperCase() + s.substring(1);
   new Effect[effect_class](element, options);
   return $(element);
-};
\ No newline at end of file
+};
+
+Element.addMethods();
\ No newline at end of file
-- 
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