MutationObserver

lib/html/frog/html_frog.dart

Index: lib/html/frog/html_frog.dart
diff --git a/lib/html/frog/html_frog.dart b/lib/html/frog/html_frog.dart
index 3f8e89762f99197758236d937df1fbab0ed3e2c6..438c2ec48b4a3594e1109ac0d6114f30d991ccf5 100644
--- a/lib/html/frog/html_frog.dart
+++ b/lib/html/frog/html_frog.dart
@@ -9116,9 +9116,6 @@ class _MouseEventImpl extends _UIEventImpl implements MouseEvent native "*MouseE
   void $dom_initMouseEvent(String type, bool canBubble, bool cancelable, _WindowImpl view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, int button, _EventTargetImpl relatedTarget) native "initMouseEvent";
 }
 
-class _MutationCallbackImpl implements MutationCallback native "*MutationCallback" {
-}
-
 class _MutationEventImpl extends _EventImpl implements MutationEvent native "*MutationEvent" {
 
   static final int ADDITION = 2;
@@ -9139,6 +9136,80 @@ class _MutationEventImpl extends _EventImpl implements MutationEvent native "*Mu
 
   void initMutationEvent(String type, bool canBubble, bool cancelable, _NodeImpl relatedNode, String prevValue, String newValue, String attrName, int attrChange) native;
 }
+// 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 _MutationObserverImpl implements MutationObserver native "*WebKitMutationObserver" {
+
+  void disconnect() native;
+
+  void _observe(_NodeImpl target, Map options) native "observe";
+
+  List<MutationRecord> takeRecords() native;
+
+  void observe(Node target,
+               [Map options,
+                bool childList,
+                bool attributes,
+                bool characterData,
+                bool subtree,
+                bool attributeOldValue,
+                bool characterDataOldValue,
+                List<String> attributeFilter]) {
+
+    // Parse options into map of known type.
+    var parsedOptions = _createDict();
+
+    if (options != null) {
+      options.forEach((k, v) {
+          if (_boolKeys.containsKey(k)) {
+            _add(parsedOptions, k, true === v);
+          } else if (k == 'attributeFilter') {
+            _add(parsedOptions, k, _fixupList(v));
+          } else {
+            throw new IllegalArgumentException(
+                "Illegal MutationObserver.observe option '$k'");
+          }
+        });
+    }
+
+    // Override options passed in the map with named optional arguments.
+    override(key, value) {
+      if (value != null) _add(parsedOptions, key, value);
+    }
+
+    override('childList', childList);
+    override('attributes', attributes);
+    override('characterData', characterData);
+    override('subtree', subtree);
+    override('attributeOldValue', attributeOldValue);
+    override('characterDataOldValue', characterDataOldValue);
+    if (attributeFilter != null) {
+      override('attributeFilter', _fixupList(attributeFilter));
+    }
+
+    _call(target, parsedOptions);
+  }
+
+   // TODO: Change to a set when const Sets are available.
+  static final _boolKeys =
+    const {'childList': true,
+           'attributes': true,
+           'characterData': true,
+           'subtree': true,
+           'attributeOldValue': true,
+           'characterDataOldValue': true };
+
+
+  static _createDict() => JS('var', '{}');
+  static _add(Map m, String key, value) { JS('void', '#[#] = #', m, key, value); }
+  static _lookup(Map m, String key) => JS('var', '#[#]', m, key);
+  static _fixupList(list) => list;  // TODO: Ensure is a JavaScript Array.
+
+  // Call native function with no conversions.
+  _call(Node target, options) native 'observe';
+}
 
 class _MutationRecordImpl implements MutationRecord native "*MutationRecord" {
 
@@ -16274,15 +16345,6 @@ class _WebKitCSSFilterValueImpl extends _CSSValueListImpl implements WebKitCSSFi
   final int operationType;
 }
 
-class _WebKitMutationObserverImpl implements WebKitMutationObserver native "*WebKitMutationObserver" {
-
-  void disconnect() native;
-
-  void observe(_NodeImpl target, Map options) native;
-
-  List<MutationRecord> takeRecords() native;
-}
-
 class _WebKitNamedFlowImpl implements WebKitNamedFlow native "*WebKitNamedFlow" {
 
   final String name;
@@ -17576,6 +17638,18 @@ class _MessageChannelFactoryProvider {
 // 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 _MutationObserverFactoryProvider {
+  factory MutationObserver(MutationCallback callback) native '''
+    var constructor =
+        window.WebKitMutationObserver || window.MozMutationObserver ||
+        window.MutationObserver;
+    return new constructor(callback);
+  ''';
+}
+// 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 _NotificationFactoryProvider {
   factory Notification(String title, [Map options]) native
       '''return new Notification(title, options);''';
@@ -26806,9 +26880,7 @@ interface MouseEvent extends UIEvent default _MouseEventFactoryProvider {
 
 // WARNING: Do not edit - generated code.
 
-/// @domName MutationCallback
-interface MutationCallback {
-}
+typedef bool MutationCallback(List<MutationRecord> mutations, WebKitMutationObserver observer);
 // 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.
@@ -26848,6 +26920,33 @@ interface MutationEvent extends Event {
 
 // WARNING: Do not edit - generated code.
 
+/// @domName WebKitMutationObserver
+interface MutationObserver default _MutationObserverFactoryProvider {
+
+  MutationObserver(MutationCallback callback);
+
+  /** @domName WebKitMutationObserver.disconnect */
+  void disconnect();
+
+  /** @domName WebKitMutationObserver.takeRecords */
+  List<MutationRecord> takeRecords();
+
+  void observe(Node target,
+               [Map options,
+                bool childList,
+                bool attributes,
+                bool characterData,
+                bool subtree,
+                bool attributeOldValue,
+                bool characterDataOldValue,
+                List<String> attributeFilter]);
+}
+// 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.
+
 /// @domName MutationRecord
 interface MutationRecord {
 
@@ -34933,24 +35032,6 @@ interface WebKitCSSFilterValue extends CSSValueList {
 
 // WARNING: Do not edit - generated code.
 
-/// @domName WebKitMutationObserver
-interface WebKitMutationObserver {
-
-  /** @domName WebKitMutationObserver.disconnect */
-  void disconnect();
-
-  /** @domName WebKitMutationObserver.observe */
-  void observe(Node target, Map options);
-
-  /** @domName WebKitMutationObserver.takeRecords */
-  List<MutationRecord> takeRecords();
-}
-// 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.
-
 /// @domName WebKitNamedFlow
 interface WebKitNamedFlow {