Safely wrap window.top in frog dom.

client/dom/frog/dom_frog.dart

 #library('dom');
 
 // Copyright (c) 2011, 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 DOM library.
 
 
@@ skipping 1162 matching lines @@
 
   void remove(String token) native;
 
   String toString() native;
 
   bool toggle(String token) native;
 }
 
 class _DOMURLJs extends _DOMTypeJs implements DOMURL native "*DOMURL" {
 }
+// 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 _DOMWindowJs extends _EventTargetJs implements DOMWindow native "@*DOMWindow" {
 
   static final int PERSISTENT = 1;
 
   static final int TEMPORARY = 0;
 
   final _DOMApplicationCacheJs applicationCache;
 
   final _NavigatorJs clientInformation;
@@ skipping 75 matching lines @@
   final _StorageJs sessionStorage;
 
   String status;
 
   final _BarInfoJs statusbar;
 
   final _StyleMediaJs styleMedia;
 
   final _BarInfoJs toolbar;
 
-  final _DOMWindowJs top;
-
   final _IDBFactoryJs webkitIndexedDB;
 
   final _NotificationCenterJs webkitNotifications;
 
   final _StorageInfoJs webkitStorageInfo;
 
   final _DOMWindowJs window;
 
   void addEventListener(String type, EventListener listener, [bool useCapture = null]) native;
 
@@ skipping 73 matching lines @@
 
   _WebKitPointJs webkitConvertPointFromPageToNode(_NodeJs node, _WebKitPointJs p) native;
 
   void webkitPostMessage(Dynamic message, String targetOrigin, [List transferList = null]) native;
 
   int webkitRequestAnimationFrame(RequestAnimationFrameCallback callback, _ElementJs element) native;
 
   void webkitRequestFileSystem(int type, int size, FileSystemCallback successCallback, [ErrorCallback errorCallback = null]) native;
 
   void webkitResolveLocalFileSystemURL(String url, [EntryCallback successCallback = null, ErrorCallback errorCallback = null]) native;
+
+
+  Window get _top() native "return this.top;";
+
+  // Override top to return secure wrapper.
+  Window get top() {
+    return _DOMWindowCrossFrameImpl._createSafe(_top);
+  }
 }
 
 class _DataTransferItemJs extends _DOMTypeJs implements DataTransferItem native "*DataTransferItem" {
 
   final String kind;
 
   final String type;
 
   _BlobJs getAsFile() native;
 
@@ skipping 1624 matching lines @@
 
 
   Window get _contentWindow() native "return this.contentWindow;";
 
   // Override contentWindow to return secure wrapper.
   Window get contentWindow() {
     return _DOMWindowCrossFrameImpl._createSafe(_contentWindow);
   }
 }
 
-// TODO(vsm): Unify with Dartium version.
-class _DOMWindowCrossFrameImpl implements DOMType, DOMWindow {
-  // Private window.
-  _DOMWindowJs _window;
-
-  // DOMType
-  var dartObjectLocalStorage;
-  String get typeName() => "DOMWindow";
-
-  // Fields.
-  // TODO(vsm): Wrap these two.
-  History get history() => _window.history;
-  Location get location() => _window.location;
-
-  bool get closed() => _window.closed;
-  int get length() => _window.length;
-  DOMWindow get opener() => _createDOMWindowCrossFrame(_window.opener);
-  DOMWindow get parent() => _createDOMWindowCrossFrame(_window.parent);
-  DOMWindow get top() => _createDOMWindowCrossFrame(_window.top);
-
-  // Methods.
-  void focus() {
-    _window.focus();
-  }
-
-  void blur() {
-    _window.blur();
-  }
-
-  void close() {
-    _window.close();
-  }
-
-  void postMessage(Dynamic message,
-                   String targetOrigin,
-                   [List messagePorts = null]) {
-    if (messagePorts == null) {
-      _window.postMessage(message, targetOrigin);
-    } else {
-      _window.postMessage(message, targetOrigin, messagePorts);
-    }
-  }
-
-  // Implementation support.
-  _DOMWindowCrossFrameImpl(this._window);
-
-  static DOMWindow _createSafe(w) {
-    // TODO(vsm): Check if it's the top-level window.  Return unwrapped.
-
-    // TODO(vsm): Cache or implement equality.
-    return new _DOMWindowCrossFrameImpl(w);
-  }
-}
-
 class _HTMLImageElementJs extends _HTMLElementJs implements HTMLImageElement native "*HTMLImageElement" {
 
   String align;
 
   String alt;
 
   String border;
 
   final bool complete;
 
@@ skipping 20873 matching lines @@
     for (final e in source) {
       if (f(e)) destination.add(e);
     }
     return destination;
   }
 
   static bool isEmpty(Iterable<Object> iterable) {
     return !iterable.iterator().hasNext();
   }
 }
+// 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.
+
+// TODO(vsm): Unify with Dartium version.
+class _DOMWindowCrossFrameImpl implements DOMType, DOMWindow {
+  // Private window.
+  _DOMWindowJs _window;
+
+  // DOMType
+  var dartObjectLocalStorage;
+  String get typeName() => "DOMWindow";
+
+  // Fields.
+  // TODO(vsm): Wrap these two.
+  History get history() => _window.history;
+  Location get location() => _window.location;
+
+  bool get closed() => _window.closed;
+  int get length() => _window.length;
+  DOMWindow get opener() => _createSafe(_window.opener);
+  DOMWindow get parent() => _createSafe(_window.parent);
+  DOMWindow get top() => _createSafe(_window.top);
+
+  // Methods.
+  void focus() {
+    _window.focus();
+  }
+
+  void blur() {
+    _window.blur();
+  }
+
+  void close() {
+    _window.close();
+  }
+
+  void postMessage(Dynamic message,
+                   String targetOrigin,
+                   [List messagePorts = null]) {
+    if (messagePorts == null) {
+      _window.postMessage(message, targetOrigin);
+    } else {
+      _window.postMessage(message, targetOrigin, messagePorts);
+    }
+  }
+
+  // Implementation support.
+  _DOMWindowCrossFrameImpl(this._window);
+
+  static DOMWindow _createSafe(w) {
+    if (w === window) {
+      return w;
+    } else {
+      // TODO(vsm): Cache or implement equality.
+      return new _DOMWindowCrossFrameImpl(w);
+    }
+  }
+}
 // Copyright (c) 2011, 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 DOMType {
   // TODO(vsm): Remove if/when Dart supports OLS for all objects.
   var dartObjectLocalStorage;
 
   String get typeName();
 }
@@ skipping 173 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;
   }
 }