Add @jsify annotation. Support automatically proxying Lists and Maps to Dart in Proxies. Support co…

lib/src/js_object_map.dart

+// Copyright (c) 2014, 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.
+
+library js.js_object_map;
+
+import 'dart:collection' show Maps;
+import 'dart:js';
+
+import 'package:js/src/js_impl.dart';
+
+/**
+ * A [Map] interface wrapper for [JsObject]s.
+ */
+class JsObjectMap<V> implements Map<String,V> {

[alexandre.ardhuin, 2014/10/01 20:36:51]

You can use dart:collection.MapMixin to get rid of Maps.*

[justinfagnani, 2014/10/07 20:32:24]

Done.

+  final JsObject _o;
+
+  JsObjectMap.fromJsObject(JsObject o) : _o = o;
+
+  @override
+  V operator [](String key) => toDart(_o[key]) as V;
+
+  @override
+  void operator []=(String key, V value) {
+    _o[key] = toJs(value);
+  }
+
+  @override
+  V remove(String key) {
+    final value = this[key];
+    _o.deleteProperty(key);
+    return value as V;
+  }
+
+  @override
+  Iterable<String> get keys =>
+      context['Object'].callMethod('keys', [_o]) as List<String>;
+
+  @override
+  bool containsValue(V value) => Maps.containsValue(this, value);
+
+  @override
+  bool containsKey(String key) => _o.hasProperty(key);
+
+  @override
+  V putIfAbsent(String key, V ifAbsent()) =>
+      Maps.putIfAbsent(this, key, ifAbsent) as V;
+
+  @override
+  void addAll(Map<String, V> other) {
+    if (other != null) {
+      other.forEach((k,v) => this[k] = v);
+    }
+  }
+
+  @override
+  void clear() => Maps.clear(this);
+
+  @override
+  void forEach(void f(String key, V value)) => Maps.forEach(this, f);
+
+  @override
+  Iterable<V> get values => Maps.getValues(this);
+
+  @override
+  int get length => Maps.length(this);
+
+  @override
+  bool get isEmpty => Maps.isEmpty(this);
+
+  @override
+  bool get isNotEmpty => Maps.isNotEmpty(this);
+}