Adding support for accessing attributes in alternate namespaces.

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index f9891b3506d0585b0df86691cc3b894ecab0175a..674d2a8380bcd2ab4f7c573f453b22be659b1522 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -7401,171 +7401,6 @@ class _FrozenElementListIterator implements Iterator<Element> {
   bool get hasNext => _index < _list.length;
 }
 
-class _ElementAttributeMap implements Map<String, String> {
-
-  final Element _element;
-
-  _ElementAttributeMap(this._element);
-
-  bool containsValue(String value) {
-    final attributes = _element.$dom_attributes;
-    for (int i = 0, len = attributes.length; i < len; i++) {
-      if(value == attributes[i].value) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  bool containsKey(String key) {
-    return _element.$dom_hasAttribute(key);
-  }
-
-  String operator [](String key) {
-    return _element.$dom_getAttribute(key);
-  }
-
-  void operator []=(String key, value) {
-    _element.$dom_setAttribute(key, '$value');
-  }
-
-  String putIfAbsent(String key, String ifAbsent()) {
-    if (!containsKey(key)) {
-      this[key] = ifAbsent();
-    }
-    return this[key];
-  }
-
-  String remove(String key) {
-    String value = _element.$dom_getAttribute(key);
-    _element.$dom_removeAttribute(key);
-    return value;
-  }
-
-  void clear() {
-    final attributes = _element.$dom_attributes;
-    for (int i = attributes.length - 1; i >= 0; i--) {
-      remove(attributes[i].name);
-    }
-  }
-
-  void forEach(void f(String key, String value)) {
-    final attributes = _element.$dom_attributes;
-    for (int i = 0, len = attributes.length; i < len; i++) {
-      final item = attributes[i];
-      f(item.name, item.value);
-    }
-  }
-
-  Collection<String> get keys {
-    // TODO(jacobr): generate a lazy collection instead.
-    final attributes = _element.$dom_attributes;
-    final keys = new List<String>(attributes.length);
-    for (int i = 0, len = attributes.length; i < len; i++) {
-      keys[i] = attributes[i].name;
-    }
-    return keys;
-  }
-
-  Collection<String> get values {
-    // TODO(jacobr): generate a lazy collection instead.
-    final attributes = _element.$dom_attributes;
-    final values = new List<String>(attributes.length);
-    for (int i = 0, len = attributes.length; i < len; i++) {
-      values[i] = attributes[i].value;
-    }
-    return values;
-  }
-
-  /**
-   * The number of {key, value} pairs in the map.
-   */
-  int get length {
-    return _element.$dom_attributes.length;
-  }
-
-  /**
-   * Returns true if there is no {key, value} pair in the map.
-   */
-  bool get isEmpty {
-    return length == 0;
-  }
-}
-
-/**
- * Provides a Map abstraction on top of data-* attributes, similar to the
- * dataSet in the old DOM.
- */
-class _DataAttributeMap implements Map<String, String> {
-
-  final Map<String, String> $dom_attributes;
-
-  _DataAttributeMap(this.$dom_attributes);
-
-  // interface Map
-
-  // TODO: Use lazy iterator when it is available on Map.
-  bool containsValue(String value) => values.some((v) => v == value);
-
-  bool containsKey(String key) => $dom_attributes.containsKey(_attr(key));
-
-  String operator [](String key) => $dom_attributes[_attr(key)];
-
-  void operator []=(String key, value) {
-    $dom_attributes[_attr(key)] = '$value';
-  }
-
-  String putIfAbsent(String key, String ifAbsent()) =>
-    $dom_attributes.putIfAbsent(_attr(key), ifAbsent);
-
-  String remove(String key) => $dom_attributes.remove(_attr(key));
-
-  void clear() {
-    // Needs to operate on a snapshot since we are mutating the collection.
-    for (String key in keys) {
-      remove(key);
-    }
-  }
-
-  void forEach(void f(String key, String value)) {
-    $dom_attributes.forEach((String key, String value) {
-      if (_matches(key)) {
-        f(_strip(key), value);
-      }
-    });
-  }
-
-  Collection<String> get keys {
-    final keys = new List<String>();
-    $dom_attributes.forEach((String key, String value) {
-      if (_matches(key)) {
-        keys.add(_strip(key));
-      }
-    });
-    return keys;
-  }
-
-  Collection<String> get values {
-    final values = new List<String>();
-    $dom_attributes.forEach((String key, String value) {
-      if (_matches(key)) {
-        values.add(value);
-      }
-    });
-    return values;
-  }
-
-  int get length => keys.length;
-
-  // TODO: Use lazy iterator when it is available on Map.
-  bool get isEmpty => length == 0;
-
-  // Helpers.
-  String _attr(String key) => 'data-$key';
-  bool _matches(String key) => key.startsWith('data-');
-  String _strip(String key) => key.substring(5);
-}
-
 class _ElementCssClassSet extends CssClassSet {
 
   final Element _element;
@@ -7678,6 +7513,14 @@ abstract class Element extends Node implements ElementTraversal native "*Element
     }
   }
 
+  /**
+   * Gets a map for manipulating the attributes of a particular namespace.
+   * This is primarily useful for SVG attributes such as xref:link.
+   */
+  Map<String, String> getNamespacedAttributes(String namespace) {
+    return new _NamespacedAttributeMap(this, namespace);
+  }
+
   /** @domName Window.getComputedStyle */
   Future<CSSStyleDeclaration> get computedStyle {
      // TODO(jacobr): last param should be null, see b/5045788
@@ -7914,6 +7757,9 @@ abstract class Element extends Node implements ElementTraversal native "*Element
   /// @domName Element.getAttribute; @docsEditable true
   String $dom_getAttribute(String name) native "getAttribute";
 
+  /// @domName Element.getAttributeNS; @docsEditable true
+  String $dom_getAttributeNS(String namespaceURI, String localName) native "getAttributeNS";
+
   /// @domName Element.getBoundingClientRect; @docsEditable true
   ClientRect getBoundingClientRect() native;
 
@@ -7932,6 +7778,9 @@ abstract class Element extends Node implements ElementTraversal native "*Element
   /// @domName Element.hasAttribute; @docsEditable true
   bool $dom_hasAttribute(String name) native "hasAttribute";
 
+  /// @domName Element.hasAttributeNS; @docsEditable true
+  bool $dom_hasAttributeNS(String namespaceURI, String localName) native "hasAttributeNS";
+
   /// @domName Element.querySelector; @docsEditable true
   Element $dom_querySelector(String selectors) native "querySelector";
 
@@ -7942,6 +7791,9 @@ abstract class Element extends Node implements ElementTraversal native "*Element
   /// @domName Element.removeAttribute; @docsEditable true
   void $dom_removeAttribute(String name) native "removeAttribute";
 
+  /// @domName Element.removeAttributeNS; @docsEditable true
+  void $dom_removeAttributeNS(String namespaceURI, String localName) native "removeAttributeNS";
+
   /// @domName Element.scrollByLines; @docsEditable true
   void scrollByLines(int lines) native;
 
@@ -7954,6 +7806,9 @@ abstract class Element extends Node implements ElementTraversal native "*Element
   /// @domName Element.setAttribute; @docsEditable true
   void $dom_setAttribute(String name, String value) native "setAttribute";
 
+  /// @domName Element.setAttributeNS; @docsEditable true
+  void $dom_setAttributeNS(String namespaceURI, String qualifiedName, String value) native "setAttributeNS";
+
   /// @domName Element.webkitMatchesSelector; @docsEditable true
   bool matchesSelector(String selectors) native "webkitMatchesSelector";
 
@@ -13996,6 +13851,12 @@ class Node extends EventTarget native "*Node" {
   /// @domName Node.lastChild; @docsEditable true
   Node get $dom_lastChild => JS("Node", "#.lastChild", this);
 
+  /// @domName Node.localName; @docsEditable true
+  String get $dom_localName => JS("String", "#.localName", this);
+
+  /// @domName Node.namespaceURI; @docsEditable true
+  String get $dom_namespaceURI => JS("String", "#.namespaceURI", this);
+
   /// @domName Node.nextSibling; @docsEditable true
   Node get nextNode => JS("Node", "#.nextSibling", this);
 
@@ -22137,6 +21998,228 @@ class _XSLTProcessorFactoryProvider {
 // BSD-style license that can be found in the LICENSE file.
 
 
+abstract class _AttributeMap implements Map<String, String> {
+
+  bool containsValue(String value) {
+    for (var v in this.values) {
+      if (value == v) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  String putIfAbsent(String key, String ifAbsent()) {
+    if (!containsKey(key)) {
+      this[key] = ifAbsent();
+    }
+    return this[key];
+  }
+
+  void clear() {
+    for (var key in keys) {
+      remove(key);
+    }
+  }
+
+  void forEach(void f(String key, String value)) {
+    for (var key in keys) {
+      var value = this[key];
+      f(key, value);
+    }
+  }
+
+  Collection<String> get keys {
+    // TODO: generate a lazy collection instead.
+    var attributes = _element.$dom_attributes;
+    var keys = new List<String>();
+    for (int i = 0, len = attributes.length; i < len; i++) {
+      if (_matches(attributes[i])) {
+        keys.add(attributes[i].$dom_localName);
+      }
+    }
+    return keys;
+  }
+
+  Collection<String> get values {
+    // TODO: generate a lazy collection instead.
+    var attributes = _element.$dom_attributes;
+    var values = new List<String>();
+    for (int i = 0, len = attributes.length; i < len; i++) {
+      if (_matches(attributes[i])) {
+        values.add(attributes[i].value);
+      }
+    }
+    return values;
+  }
+
+  /**
+   * Returns true if there is no {key, value} pair in the map.
+   */
+  bool get isEmpty {
+    return length == 0;
+  }
+
+  /**
+   * Checks to see if the node should be included in this map.
+   */
+  bool _matches(Node node);
+}
+
+/**
+ * Wrapper to expose Element.attributes as a typed map.
+ */
+class _ElementAttributeMap extends _AttributeMap {
+
+  final Element _element;
+
+  _ElementAttributeMap(this._element);
+
+  bool containsKey(String key) {
+    return _element.$dom_hasAttribute(key);
+  }
+
+  String operator [](String key) {
+    return _element.$dom_getAttribute(key);
+  }
+
+  void operator []=(String key, value) {
+    _element.$dom_setAttribute(key, '$value');
+  }
+
+  String remove(String key) {
+    String value = _element.$dom_getAttribute(key);
+    _element.$dom_removeAttribute(key);
+    return value;
+  }
+
+  /**
+   * The number of {key, value} pairs in the map.
+   */
+  int get length {
+    return keys.length;
+  }
+
+  bool _matches(Node node) => node.$dom_namespaceURI == null;
+}
+
+/**
+ * Wrapper to expose namespaced attributes as a typed map.
+ */
+class _NamespacedAttributeMap extends _AttributeMap {
+
+  final Element _element;
+  final String _namespace;
+
+  _NamespacedAttributeMap(this._element, this._namespace);
+
+  bool containsKey(String key) {
+    return _element.$dom_hasAttributeNS(_namespace, key);
+  }
+
+  String operator [](String key) {
+    return _element.$dom_getAttributeNS(_namespace, key);
+  }
+
+  void operator []=(String key, value) {
+    _element.$dom_setAttributeNS(_namespace, key, '$value');
+  }
+
+  String remove(String key) {
+    String value = this[key];
+    _element.$dom_removeAttributeNS(_namespace, key);
+    return value;
+  }
+
+  /**
+   * The number of {key, value} pairs in the map.
+   */
+  int get length {
+    return keys.length;
+  }
+
+  bool _matches(Node node) => node.$dom_namespaceURI == _namespace;
+}
+
+
+/**
+ * Provides a Map abstraction on top of data-* attributes, similar to the
+ * dataSet in the old DOM.
+ */
+class _DataAttributeMap implements Map<String, String> {
+
+  final Map<String, String> $dom_attributes;
+
+  _DataAttributeMap(this.$dom_attributes);
+
+  // interface Map
+
+  // TODO: Use lazy iterator when it is available on Map.
+  bool containsValue(String value) => values.some((v) => v == value);
+
+  bool containsKey(String key) => $dom_attributes.containsKey(_attr(key));
+
+  String operator [](String key) => $dom_attributes[_attr(key)];
+
+  void operator []=(String key, value) {
+    $dom_attributes[_attr(key)] = '$value';
+  }
+
+  String putIfAbsent(String key, String ifAbsent()) =>
+    $dom_attributes.putIfAbsent(_attr(key), ifAbsent);
+
+  String remove(String key) => $dom_attributes.remove(_attr(key));
+
+  void clear() {
+    // Needs to operate on a snapshot since we are mutating the collection.
+    for (String key in keys) {
+      remove(key);
+    }
+  }
+
+  void forEach(void f(String key, String value)) {
+    $dom_attributes.forEach((String key, String value) {
+      if (_matches(key)) {
+        f(_strip(key), value);
+      }
+    });
+  }
+
+  Collection<String> get keys {
+    final keys = new List<String>();
+    $dom_attributes.forEach((String key, String value) {
+      if (_matches(key)) {
+        keys.add(_strip(key));
+      }
+    });
+    return keys;
+  }
+
+  Collection<String> get values {
+    final values = new List<String>();
+    $dom_attributes.forEach((String key, String value) {
+      if (_matches(key)) {
+        values.add(value);
+      }
+    });
+    return values;
+  }
+
+  int get length => keys.length;
+
+  // TODO: Use lazy iterator when it is available on Map.
+  bool get isEmpty => length == 0;
+
+  // Helpers.
+  String _attr(String key) => 'data-$key';
+  bool _matches(String key) => key.startsWith('data-');
+  String _strip(String key) => key.substring(5);
+}
+// 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.
+
+
 /**
  * An object representing the top-level context object for web scripting.
  *