Refactor the event-generation code to locate it in systemhtml.py.

client/html/frog/html_frog.dart

 #library('html');
 
 // 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.
 
 // DO NOT EDIT
 // Auto-generated dart:html library.
 
 
@@ skipping 524 matching lines @@
 
 class _BlobBuilderImpl implements BlobBuilder native "*WebKitBlobBuilder" {
 
   void append(var arrayBuffer_OR_blob_OR_value, [String endings = null]) native;
 
   _BlobImpl getBlob([String contentType = null]) native;
 }
 
 class _BodyElementImpl extends _ElementImpl implements BodyElement native "*HTMLBodyElement" {
 
+  _BodyElementEventsImpl get on() =>
+    new _BodyElementEventsImpl(this);
+
   String aLink;
 
   String background;
 
   String bgColor;
 
   String link;
 
   String vLink;
-
-  _BodyElementEventsImpl get on() =>
-    new _BodyElementEventsImpl(this);
 }
 
 class _BodyElementEventsImpl extends _ElementEventsImpl implements BodyElementEvents {
   _BodyElementEventsImpl(_ptr) : super(_ptr);
 
   EventListenerList get beforeUnload() => _get('beforeunload');
 
   EventListenerList get blur() => _get('blur');
 
   EventListenerList get error() => _get('error');
@@ skipping 3608 matching lines @@
   void initCustomEvent(String typeArg, bool canBubbleArg, bool cancelableArg, Object detailArg) native;
 }
 
 class _DListElementImpl extends _ElementImpl implements DListElement native "*HTMLDListElement" {
 
   bool compact;
 }
 
 class _DOMApplicationCacheImpl extends _EventTargetImpl implements DOMApplicationCache native "*DOMApplicationCache" {
 
+  _DOMApplicationCacheEventsImpl get on() =>
+    new _DOMApplicationCacheEventsImpl(this);
+
   static final int CHECKING = 2;
 
   static final int DOWNLOADING = 3;
 
   static final int IDLE = 1;
 
   static final int OBSOLETE = 5;
 
   static final int UNCACHED = 0;
 
   static final int UPDATEREADY = 4;
 
   final int status;
 
-  _DOMApplicationCacheEventsImpl get on() =>
-    new _DOMApplicationCacheEventsImpl(this);
-
   void abort() native;
 
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   bool _dispatchEvent(_EventImpl evt) native "return this.dispatchEvent(evt);";
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.removeEventListener(type, listener, useCapture);";
 
   void swapCache() native;
 
@@ skipping 414 matching lines @@
   String align;
 }
 // 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.
 
 class _DocumentImpl extends _ElementImpl
     implements Document
     native "*HTMLHtmlElement" {
 
+  _DocumentEventsImpl get on() =>
+    new _DocumentEventsImpl(_jsDocument);
+
   _ElementImpl get activeElement() native "return this.parentNode.activeElement;";
 
   _ElementImpl get body() native "return this.parentNode.body;";
 
   void set body(_ElementImpl value) native "this.parentNode.body = value;";
 
   String get charset() native "return this.parentNode.charset;";
 
   void set charset(String value) native "this.parentNode.charset = value;";
 
@@ skipping 28 matching lines @@
   _ElementImpl get webkitCurrentFullScreenElement() native "return this.parentNode.webkitCurrentFullScreenElement;";
 
   bool get webkitFullScreenKeyboardInputAllowed() native "return this.parentNode.webkitFullScreenKeyboardInputAllowed;";
 
   bool get webkitHidden() native "return this.parentNode.webkitHidden;";
 
   bool get webkitIsFullScreen() native "return this.parentNode.webkitIsFullScreen;";
 
   String get webkitVisibilityState() native "return this.parentNode.webkitVisibilityState;";
 
-  _DocumentEventsImpl get on() =>
-    new _DocumentEventsImpl(_jsDocument);
-
   _RangeImpl caretRangeFromPoint(int x, int y) native "return this.parentNode.caretRangeFromPoint(x, y);";
 
   _CDATASectionImpl createCDATASection(String data) native "return this.parentNode.createCDATASection(data);";
 
   _DocumentFragmentImpl createDocumentFragment() native "return this.parentNode.createDocumentFragment();";
 
   _ElementImpl _createElement(String tagName) native "return this.parentNode.createElement(tagName);";
 
   _EventImpl _createEvent(String eventType) native "return this.parentNode.createEvent(eventType);";
 
@@ skipping 145 matching lines @@
 
   EventListenerList get touchEnd() => _get('touchend');
 
   EventListenerList get touchMove() => _get('touchmove');
 
   EventListenerList get touchStart() => _get('touchstart');
 }
 
 class _DocumentFragmentImpl extends _NodeImpl implements DocumentFragment native "*DocumentFragment" {
 
+  _DocumentFragmentEventsImpl get on() =>
+    new _DocumentFragmentEventsImpl(this);
+
   _ElementImpl query(String selectors) native "return this.querySelector(selectors);";
 
   _NodeListImpl _querySelectorAll(String selectors) native "return this.querySelectorAll(selectors);";
 }
 
+class _DocumentFragmentEventsImpl extends _EventsImpl implements DocumentFragmentEvents {
+  _DocumentFragmentEventsImpl(_ptr) : super(_ptr);
+}
+
 class _DocumentTypeImpl extends _NodeImpl implements DocumentType native "*DocumentType" {
 
   final _NamedNodeMapImpl entities;
 
   final String internalSubset;
 
   final String name;
 
   final _NamedNodeMapImpl notations;
 
@@ skipping 545 matching lines @@
      // TODO(jacobr): last param should be null, see b/5045788
      return getComputedStyle('');
   }
 
   Future<CSSStyleDeclaration> getComputedStyle(String pseudoElement) {
     return _createMeasurementFuture(() =>
             window._getComputedStyle(this, pseudoElement),
         new Completer<CSSStyleDeclaration>());
   }
 
+  _ElementEventsImpl get on() =>
+    new _ElementEventsImpl(this);
+
   static final int ALLOW_KEYBOARD_INPUT = 1;
 
   int get _childElementCount() native "return this.childElementCount;";
 
   _HTMLCollectionImpl get _children() native "return this.children;";
 
   final _DOMTokenListImpl classList;
 
   String get _className() native "return this.className;";
 
@@ skipping 64 matching lines @@
   final String tagName;
 
   String title;
 
   bool translate;
 
   final String webkitRegionOverflow;
 
   String webkitdropzone;
 
-  _ElementEventsImpl get on() =>
-    new _ElementEventsImpl(this);
-
   void blur() native;
 
   void click() native;
 
   void focus() native;
 
   String _getAttribute(String name) native "return this.getAttribute(name);";
 
   _ClientRectImpl _getBoundingClientRect() native "return this.getBoundingClientRect();";
 
@@ skipping 338 matching lines @@
 
   final String message;
 
   final String name;
 
   String toString() native;
 }
 
 class _EventSourceImpl extends _EventTargetImpl implements EventSource native "*EventSource" {
 
+  _EventSourceEventsImpl get on() =>
+    new _EventSourceEventsImpl(this);
+
   static final int CLOSED = 2;
 
   static final int CONNECTING = 0;
 
   static final int OPEN = 1;
 
   final String URL;
 
   final int readyState;
 
   final String url;
 
-  _EventSourceEventsImpl get on() =>
-    new _EventSourceEventsImpl(this);
-
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   void close() native;
 
   bool _dispatchEvent(_EventImpl evt) native "return this.dispatchEvent(evt);";
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.removeEventListener(type, listener, useCapture);";
 }
 
 class _EventSourceEventsImpl extends _EventsImpl implements EventSourceEvents {
@@ skipping 538 matching lines @@
 
   String src;
 
   final int width;
 
   _SVGDocumentImpl getSVGDocument() native;
 }
 
 class _FrameSetElementImpl extends _ElementImpl implements FrameSetElement native "*HTMLFrameSetElement" {
 
+  _FrameSetElementEventsImpl get on() =>
+    new _FrameSetElementEventsImpl(this);
+
   String cols;
 
   String rows;
-
-  _FrameSetElementEventsImpl get on() =>
-    new _FrameSetElementEventsImpl(this);
 }
 
 class _FrameSetElementEventsImpl extends _ElementEventsImpl implements FrameSetElementEvents {
   _FrameSetElementEventsImpl(_ptr) : super(_ptr);
 
   EventListenerList get beforeUnload() => _get('beforeunload');
 
   EventListenerList get blur() => _get('blur');
 
   EventListenerList get error() => _get('error');
@@ skipping 543 matching lines @@
 
   int width;
 
   final int x;
 
   final int y;
 }
 
 class _InputElementImpl extends _ElementImpl implements InputElement native "*HTMLInputElement" {
 
+  _InputElementEventsImpl get on() =>
+    new _InputElementEventsImpl(this);
+
   String accept;
 
   String align;
 
   String alt;
 
   String autocomplete;
 
   bool autofocus;
 
@@ skipping 70 matching lines @@
   num valueAsNumber;
 
   bool webkitGrammar;
 
   bool webkitSpeech;
 
   bool webkitdirectory;
 
   final bool willValidate;
 
-  _InputElementEventsImpl get on() =>
-    new _InputElementEventsImpl(this);
-
   bool checkValidity() native;
 
   void select() native;
 
   void setCustomValidity(String error) native;
 
   void setSelectionRange(int start, int end, [String direction = null]) native;
 
   void stepDown([int n = null]) native;
 
@@ skipping 1468 matching lines @@
 
 class _NotationImpl extends _NodeImpl implements Notation native "*Notation" {
 
   final String publicId;
 
   final String systemId;
 }
 
 class _NotificationImpl extends _EventTargetImpl implements Notification native "*Notification" {
 
+  _NotificationEventsImpl get on() =>
+    new _NotificationEventsImpl(this);
+
   String dir;
 
   String replaceId;
 
-  _NotificationEventsImpl get on() =>
-    new _NotificationEventsImpl(this);
-
   void cancel() native;
 
   void show() native;
 }
 
 class _NotificationEventsImpl extends _EventsImpl implements NotificationEvents {
   _NotificationEventsImpl(_ptr) : super(_ptr);
 
   EventListenerList get click() => _get('click');
 
@@ skipping 1086 matching lines @@
 
   final _SVGSVGElementImpl ownerSVGElement;
 
   final _SVGElementImpl viewportElement;
 
   String xmlbase;
 }
 
 class _SVGElementInstanceImpl extends _EventTargetImpl implements SVGElementInstance native "*SVGElementInstance" {
 
+  _SVGElementInstanceEventsImpl get on() =>
+    new _SVGElementInstanceEventsImpl(this);
+
   final _SVGElementInstanceListImpl childNodes;
 
   final _SVGElementImpl correspondingElement;
 
   final _SVGUseElementImpl correspondingUseElement;
 
   final _SVGElementInstanceImpl firstChild;
 
   final _SVGElementInstanceImpl lastChild;
 
   final _SVGElementInstanceImpl nextSibling;
 
   final _SVGElementInstanceImpl parentNode;
 
   final _SVGElementInstanceImpl previousSibling;
 
-  _SVGElementInstanceEventsImpl get on() =>
-    new _SVGElementInstanceEventsImpl(this);
-
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   bool _dispatchEvent(_EventImpl event) native "return this.dispatchEvent(event);";
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.removeEventListener(type, listener, useCapture);";
 }
 
 class _SVGElementInstanceEventsImpl extends _EventsImpl implements SVGElementInstanceEvents {
   _SVGElementInstanceEventsImpl(_ptr) : super(_ptr);
 
@@ skipping 5027 matching lines @@
 
 class _WebKitNamedFlowImpl implements WebKitNamedFlow native "*WebKitNamedFlow" {
 
   final bool overflow;
 
   _NodeListImpl getRegionsByContentNode(_NodeImpl contentNode) native;
 }
 
 class _WebSocketImpl extends _EventTargetImpl implements WebSocket native "*WebSocket" {
 
+  _WebSocketEventsImpl get on() =>
+    new _WebSocketEventsImpl(this);
+
   static final int CLOSED = 3;
 
   static final int CLOSING = 2;
 
   static final int CONNECTING = 0;
 
   static final int OPEN = 1;
 
   final String URL;
 
   String binaryType;
 
   final int bufferedAmount;
 
   final String extensions;
 
   final String protocol;
 
   final int readyState;
 
   final String url;
 
-  _WebSocketEventsImpl get on() =>
-    new _WebSocketEventsImpl(this);
-
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   void close([int code = null, String reason = null]) native;
 
   bool _dispatchEvent(_EventImpl evt) native "return this.dispatchEvent(evt);";
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.removeEventListener(type, listener, useCapture);";
 
   bool send(String data) native;
 }
@@ skipping 52 matching lines @@
 
 class _WindowImpl extends _EventTargetImpl implements Window native "@*DOMWindow" {
 
   _DocumentImpl get document() native "return this.document.documentElement;";
 
   void requestLayoutFrame(TimeoutHandler callback) {
     _addMeasurementFrameCallback(callback);
   }
 
 
+  _WindowEventsImpl get on() =>
+    new _WindowEventsImpl(this);
+
   static final int PERSISTENT = 1;
 
   static final int TEMPORARY = 0;
 
   final _DOMApplicationCacheImpl applicationCache;
 
   final _NavigatorImpl clientInformation;
 
   final bool closed;
 
@@ skipping 82 matching lines @@
   final _WindowImpl top;
 
   final _IDBFactoryImpl webkitIndexedDB;
 
   final _NotificationCenterImpl webkitNotifications;
 
   final _StorageInfoImpl webkitStorageInfo;
 
   final _WindowImpl window;
 
-  _WindowEventsImpl get on() =>
-    new _WindowEventsImpl(this);
-
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   void alert(String message) native;
 
   String atob(String string) native;
 
   void blur() native;
 
   String btoa(String string) native;
 
@@ skipping 323 matching lines @@
 
   final bool onLine;
 
   final String platform;
 
   final String userAgent;
 }
 
 class _XMLHttpRequestImpl extends _EventTargetImpl implements XMLHttpRequest native "*XMLHttpRequest" {
 
+  _XMLHttpRequestEventsImpl get on() =>
+    new _XMLHttpRequestEventsImpl(this);
+
   static final int DONE = 4;
 
   static final int HEADERS_RECEIVED = 2;
 
   static final int LOADING = 3;
 
   static final int OPENED = 1;
 
   static final int UNSENT = 0;
 
@@ skipping 14 matching lines @@
   _EventTargetImpl get _responseXML() native "return this.responseXML;";
 
   final int status;
 
   final String statusText;
 
   final _XMLHttpRequestUploadImpl upload;
 
   bool withCredentials;
 
-  _XMLHttpRequestEventsImpl get on() =>
-    new _XMLHttpRequestEventsImpl(this);
-
   void abort() native;
 
   void _addEventListener(String type, EventListener listener, [bool useCapture = null]) native "this.addEventListener(type, listener, useCapture);";
 
   bool _dispatchEvent(_EventImpl evt) native "return this.dispatchEvent(evt);";
 
   String getAllResponseHeaders() native;
 
   String getResponseHeader(String header) native;
 
@@ skipping 1023 matching lines @@
   Blob getBlob([String contentType]);
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface BodyElement extends Element {
 
+  BodyElementEvents get on();
+
   String aLink;
 
   String background;
 
   String bgColor;
 
   String link;
 
   String vLink;
-
-  BodyElementEvents get on();
 }
 
 interface BodyElementEvents extends ElementEvents {
 
   EventListenerList get beforeUnload();
 
   EventListenerList get blur();
 
   EventListenerList get error();
 
@@ skipping 2804 matching lines @@
   bool compact;
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface DOMApplicationCache extends EventTarget {
 
+  DOMApplicationCacheEvents get on();
+
   static final int CHECKING = 2;
 
   static final int DOWNLOADING = 3;
 
   static final int IDLE = 1;
 
   static final int OBSOLETE = 5;
 
   static final int UNCACHED = 0;
 
   static final int UPDATEREADY = 4;
 
   final int status;
 
-  DOMApplicationCacheEvents get on();
-
   void abort();
 
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   bool _dispatchEvent(Event evt);
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture]);
 
   void swapCache();
 
@@ skipping 567 matching lines @@
 
   String align;
 }
 // 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.
 
 interface Document extends HtmlElement {
 
 
+  DocumentEvents get on();
+
   final Element activeElement;
 
   Element body;
 
   String charset;
 
   String cookie;
 
   final Window window;
 
@@ skipping 18 matching lines @@
   final Element webkitCurrentFullScreenElement;
 
   final bool webkitFullScreenKeyboardInputAllowed;
 
   final bool webkitHidden;
 
   final bool webkitIsFullScreen;
 
   final String webkitVisibilityState;
 
-  DocumentEvents get on();
-
   Range caretRangeFromPoint(int x, int y);
 
   CDATASection createCDATASection(String data);
 
   DocumentFragment createDocumentFragment();
 
   Element _createElement(String tagName);
 
   Event _createEvent(String eventType);
 
@@ skipping 124 matching lines @@
   EventListenerList get touchStart();
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface DocumentFragment extends Node, NodeSelector {
 
+  DocumentFragmentEvents get on();
+
   Element query(String selectors);
 
   NodeList _querySelectorAll(String selectors);
 }
+
+interface DocumentFragmentEvents extends Events {
+}
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface DocumentType extends Node {
 
   final NamedNodeMap entities;
 
@@ skipping 317 matching lines @@
   Future<CSSStyleDeclaration> get computedStyle();
 
   /** @domName Window.getComputedStyle */
   Future<CSSStyleDeclaration> getComputedStyle(String pseudoElement);
 
   Element clone(bool deep);
 
   Element get parent();
 
 
+  ElementEvents get on();
+
   static final int ALLOW_KEYBOARD_INPUT = 1;
 
   final int _childElementCount;
 
   final HTMLCollection _children;
 
   final DOMTokenList classList;
 
   String _className;
 
@@ skipping 58 matching lines @@
   final String tagName;
 
   String title;
 
   bool translate;
 
   final String webkitRegionOverflow;
 
   String webkitdropzone;
 
-  ElementEvents get on();
-
   void blur();
 
   void click();
 
   void focus();
 
   String _getAttribute(String name);
 
   ClientRect _getBoundingClientRect();
 
@@ skipping 427 matching lines @@
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface EventSource extends EventTarget default _EventSourceFactoryProvider {
 
   EventSource(String scriptUrl);
 
+  EventSourceEvents get on();
+
   static final int CLOSED = 2;
 
   static final int CONNECTING = 0;
 
   static final int OPEN = 1;
 
   final String URL;
 
   final int readyState;
 
   final String url;
 
-  EventSourceEvents get on();
-
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   void close();
 
   bool _dispatchEvent(Event evt);
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture]);
 }
 
 interface EventSourceEvents extends Events {
@@ skipping 459 matching lines @@
   SVGDocument getSVGDocument();
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface FrameSetElement extends Element {
 
+  FrameSetElementEvents get on();
+
   String cols;
 
   String rows;
-
-  FrameSetElementEvents get on();
 }
 
 interface FrameSetElementEvents extends ElementEvents {
 
   EventListenerList get beforeUnload();
 
   EventListenerList get blur();
 
   EventListenerList get error();
 
@@ skipping 614 matching lines @@
   final int y;
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface InputElement extends Element {
 
+  InputElementEvents get on();
+
   String accept;
 
   String align;
 
   String alt;
 
   String autocomplete;
 
   bool autofocus;
 
@@ skipping 70 matching lines @@
   num valueAsNumber;
 
   bool webkitGrammar;
 
   bool webkitSpeech;
 
   bool webkitdirectory;
 
   final bool willValidate;
 
-  InputElementEvents get on();
-
   bool checkValidity();
 
   void select();
 
   void setCustomValidity(String error);
 
   void setSelectionRange(int start, int end, [String direction]);
 
   void stepDown([int n]);
 
@@ skipping 1188 matching lines @@
   final String systemId;
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface Notification extends EventTarget {
 
+  NotificationEvents get on();
+
   String dir;
 
   String replaceId;
 
-  NotificationEvents get on();
-
   void cancel();
 
   void show();
 }
 
 interface NotificationEvents extends Events {
 
   EventListenerList get click();
 
   EventListenerList get close();
@@ skipping 1239 matching lines @@
   String xmlbase;
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface SVGElementInstance extends EventTarget {
 
+  SVGElementInstanceEvents get on();
+
   final SVGElementInstanceList childNodes;
 
   final SVGElement correspondingElement;
 
   final SVGUseElement correspondingUseElement;
 
   final SVGElementInstance firstChild;
 
   final SVGElementInstance lastChild;
 
   final SVGElementInstance nextSibling;
 
   final SVGElementInstance parentNode;
 
   final SVGElementInstance previousSibling;
 
-  SVGElementInstanceEvents get on();
-
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   bool _dispatchEvent(Event event);
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture]);
 }
 
 interface SVGElementInstanceEvents extends Events {
 
   EventListenerList get abort();
@@ skipping 4427 matching lines @@
   NodeList getRegionsByContentNode(Node contentNode);
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 interface WebSocket extends EventTarget {
 
+  WebSocketEvents get on();
+
   static final int CLOSED = 3;
 
   static final int CLOSING = 2;
 
   static final int CONNECTING = 0;
 
   static final int OPEN = 1;
 
   final String URL;
 
   String binaryType;
 
   final int bufferedAmount;
 
   final String extensions;
 
   final String protocol;
 
   final int readyState;
 
   final String url;
 
-  WebSocketEvents get on();
-
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   void close([int code, String reason]);
 
   bool _dispatchEvent(Event evt);
 
   void _removeEventListener(String type, EventListener listener, [bool useCapture]);
 
   bool send(String data);
 }
@@ skipping 61 matching lines @@
   final Document document;
 
   /**
    * Executes a [callback] after the next batch of browser layout measurements
    * has completed or would have completed if any browser layout measurements
    * had been scheduled.
    */
   void requestLayoutFrame(TimeoutHandler callback);
 
 
+  WindowEvents get on();
+
   static final int PERSISTENT = 1;
 
   static final int TEMPORARY = 0;
 
   final DOMApplicationCache applicationCache;
 
   final Navigator clientInformation;
 
   final bool closed;
 
@@ skipping 82 matching lines @@
   final Window top;
 
   final IDBFactory webkitIndexedDB;
 
   final NotificationCenter webkitNotifications;
 
   final StorageInfo webkitStorageInfo;
 
   final Window window;
 
-  WindowEvents get on();
-
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   void alert(String message);
 
   String atob(String string);
 
   void blur();
 
   String btoa(String string);
 
@@ skipping 352 matching lines @@
 
 // WARNING: Do not edit - generated code.
 
 interface XMLHttpRequest extends EventTarget default _XMLHttpRequestFactoryProvider {
   // TODO(rnystrom): This name should just be "get" which is valid in Dart, but
   // not correctly implemented yet. (b/4970173)
   XMLHttpRequest.getTEMPNAME(String url, onSuccess(XMLHttpRequest request));
 
   XMLHttpRequest();
 
+  XMLHttpRequestEvents get on();
+
   static final int DONE = 4;
 
   static final int HEADERS_RECEIVED = 2;
 
   static final int LOADING = 3;
 
   static final int OPENED = 1;
 
   static final int UNSENT = 0;
 
@@ skipping 12 matching lines @@
   final Document responseXML;
 
   final int status;
 
   final String statusText;
 
   final XMLHttpRequestUpload upload;
 
   bool withCredentials;
 
-  XMLHttpRequestEvents get on();
-
   void abort();
 
   void _addEventListener(String type, EventListener listener, [bool useCapture]);
 
   bool _dispatchEvent(Event evt);
 
   String getAllResponseHeaders();
 
   String getResponseHeader(String header);
 
@@ skipping 1299 matching lines @@
     if (length < 0) throw new IllegalArgumentException('length');
     if (start < 0) throw new IndexOutOfRangeException(start);
     int end = start + length;
     if (end > a.length) throw new IndexOutOfRangeException(end);
     for (int i = start; i < end; i++) {
       accumulator.add(a[i]);
     }
     return accumulator;
   }
 }