Adding ElementEventStream.capture

tools/dom/templates/html/impl/impl_Element.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of $LIBRARYNAME;
 
 class _ChildrenElementList extends ListBase<Element> {
   // Raw Element.
   final Element _element;
   final HtmlCollection _childElements;
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    * group of selectors.
    *
    * [selectors] should be a string using CSS selector syntax.
    *
    *     var items = element.querySelectorAll('.itemClassName');
    */
   @DomName('Element.querySelectorAll')
   ElementList querySelectorAll(String selectors) =>
     new _FrozenElementList._wrap(_querySelectorAll(selectors));
 
-  /** 
+  /**
    * Alias for [querySelector]. Note this function is deprecated because its
    * semantics will be changing in the future.
    */
   @deprecated
   @DomName('Element.querySelector')
   @Experimental()
   Element query(String relativeSelectors) => querySelector(relativeSelectors);
 
-  /** 
+  /**
    * Alias for [querySelectorAll]. Note this function is deprecated because its
    * semantics will be changing in the future.
    */
   @deprecated
   @DomName('Element.querySelectorAll')
   @Experimental()
   ElementList queryAll(String relativeSelectors) =>
       querySelectorAll(relativeSelectors);
 
   /**
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   /**
    * For use while transitioning to the safe [innerHtml] or [setInnerHtml].
    * Unsafe because it opens the app to cross-site scripting vulnerabilities.
    */
   @deprecated
   void set unsafeInnerHtml(String html) {
     _innerHtml = html;
   }
 
+  /**
+   * This is an ease-of-use accessor for event streams which should only be
+   * used when an explicit accessor is not available.
+   */
+  ElementEvents get on => new ElementEvents(this);
+
 $!MEMBERS
 }
 
 
 class _ElementFactoryProvider {
 
   @DomName('Document.createElement')
 $if DART2JS
   // Optimization to improve performance until the dart2js compiler inlines this
   // method.
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   const ScrollAlignment._internal(this._value);
   toString() => 'ScrollAlignment.$_value';
 
   /// Attempt to align the element to the top of the scrollable area.
   static const TOP = const ScrollAlignment._internal('TOP');
   /// Attempt to center the element in the scrollable area.
   static const CENTER = const ScrollAlignment._internal('CENTER');
   /// Attempt to align the element to the bottom of the scrollable area.
   static const BOTTOM = const ScrollAlignment._internal('BOTTOM');
 }