Sync Prototype; closes #1539

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1558 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/helpers/javascripts/prototype.js

-/*  Prototype: an object-oriented Javascript library, version 1.3.0
+/*  Prototype JavaScript framework, version 1.3.0
  *  (c) 2005 Sam Stephenson <sam@conio.net>
  *
  *  THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff
@@ -152,10 +152,17 @@ String.prototype.extend({
     return this.replace(/<\/?[^>]+>/gi, '');
   },
 
+  escapeHTML: function() {
+    var div = document.createElement('div');
+    var text = document.createTextNode(this);
+    div.appendChild(text);
+    return div.innerHTML;
+  },
+
   unescapeHTML: function() {
-    return this.replace(/&lt;/gi,"<").replace(/&gt;/gi,">").
-                replace(/&quot;/gi,'"').replace(/&apos;/gi,"'").
-                replace(/&amp;/gi,"&").replace(/[\n\r]/gi,"");
+    var div = document.createElement('div');
+    div.innerHTML = this.stripTags();
+    return div.childNodes[0].nodeValue;
   }
 });
 
@@ -238,23 +245,24 @@ Ajax.Request.prototype = (new Ajax.Base()).extend({
     var event = Ajax.Request.Events[readyState];
     
     if (event == 'Complete' && this.transport.status != 200)
-      (this.options['on' + this.transport.status] ||
-       this.options.onFailure ||
-       Prototype.emptyFunction)(this.transport);
+      (this.options['on' + this.transport.status]
+       || this.options.onFailure
+       || Prototype.emptyFunction)(this.transport);
     
     (this.options['on' + event] || Prototype.emptyFunction)(this.transport);    
   }
 });
 
 Ajax.Updater = Class.create();
+Ajax.Updater.ScriptFragmentMatch = /<script.*?>((?:\n|.)*?)<\/script>/im;
+
 Ajax.Updater.prototype = (new Ajax.Base()).extend({
   initialize: function(container, url, options) {
     this.containers = {
       success: container.success ? $(container.success) : $(container),
       failure: container.failure ? $(container.failure) : null
     }
-
-    this.script_re = /<script.*?>((?:\n|.)*?)<\/script>/im;
+    
     this.setOptions(options);
   
     if (this.options.asynchronous) {
@@ -272,12 +280,12 @@ Ajax.Updater.prototype = (new Ajax.Base()).extend({
     var receiver = 
       (this.request.transport.status == 200) ?
       this.containers.success : this.containers.failure;
-
-    var response = this.request.transport.responseText.replace(
-      this.script_re, '');
-
-    var scripts = this.request.transport.responseText.match(
-      this.script_re);
+    
+    var response = this.request.transport.responseText.
+      replace(Ajax.Updater.ScriptFragmentMatch, '');
+    
+    var scripts = this.request.transport.responseText.
+      match(Ajax.Updater.ScriptFragmentMatch);
     
     if (receiver) {
       if (this.options.insertion) {
@@ -288,13 +296,12 @@ Ajax.Updater.prototype = (new Ajax.Base()).extend({
     }
 
     if (this.request.transport.status == 200) {
-      if (this.onComplete) {
+      if (this.onComplete)
         setTimeout((function() {this.onComplete(
           this.request.transport)}).bind(this), 10);
-      }
-      if (this.options.script && scripts) {
-        setTimeout((function() { eval(scripts[1]) }).bind(this), 10);
-      }
+      
+      if (this.options.evalScripts && scripts)
+        setTimeout((function() {eval(scripts[1])}).bind(this), 10);
     }
   }
 });
@@ -340,11 +347,8 @@ Ajax.PeriodicalUpdater.prototype = (new Ajax.Base()).extend({
   onTimerEvent: function() {
     this.updater = new Ajax.Updater(this.container, this.url, this.options);
   }
-
 });
 
-/*--------------------------------------------------------------------------*/
-
 document.getElementsByClassName = function(className) {
   var children = document.getElementsByTagName('*') || document.all;
   var elements = new Array();
@@ -855,31 +859,56 @@ Object.extend(Event, {
   // node the event was triggered on; traverses the DOM upwards
   findElement: function(event, tagName) {
     var element = Event.element(event);
-    while (element.parentNode && (!element.tagName || 
-      (element.tagName.toUpperCase() != tagName.toUpperCase())))
+    while (element.parentNode && (!element.tagName ||
+        (element.tagName.toUpperCase() != tagName.toUpperCase())))
       element = element.parentNode;
     return element;
   },
 
-  observe: function(element, name, observer) {
+  observe: function(element, name, observer, useCapture) {
     var element = $(element);
+    useCapture = useCapture || false;
+    
     if (name == 'keypress') {
-      if (navigator.appVersion.indexOf('AppleWebKit') > 0) { 
-        element.addEventListener('keydown', observer, false); 
+      if (navigator.appVersion.indexOf('AppleWebKit') > 0) {
+        element.addEventListener('keydown', observer, useCapture);
         return;
       }
       if (element.addEventListener) {
-        element.addEventListener('keypress', observer, false);
+        element.addEventListener('keypress', observer, useCapture);
       } else if (element.attachEvent) {
         element.attachEvent('onkeydown', observer);
       }
     } else {
       if (element.addEventListener) {
-        element.addEventListener(name, observer, false);
+        element.addEventListener(name, observer, useCapture);
       } else if (element.attachEvent) {
         element.attachEvent('on' + name, observer);
       }
     }
+  },
+
+  stopObserving: function(element, name, observer, useCapture) {
+    var element = $(element);
+    useCapture = useCapture || false;
+    
+    if (name == 'keypress') {
+      if (navigator.appVersion.indexOf('AppleWebKit') > 0) {
+        element.removeEventListener('keydown', observer, useCapture);
+        return;
+      }
+      if (element.removeEventListener) {
+        element.removeEventListener('keypress', observer, useCapture);
+      } else if (element.detachEvent) {
+        element.detachEvent('onkeydown', observer);
+      }
+    } else {
+      if (element.removeEventListener) {
+        element.removeEventListener(name, observer, useCapture);
+      } else if (element.detachEvent) {
+        element.detachEvent('on' + name, observer);
+      }
+    }
   }
 });