Updating Angular version

third_party/pkg/angular/demo/todo/todo.dart

-library todo;
-
-import 'package:angular/angular.dart';
-
-class Item {
-  String text;
-  bool done;
-
-  Item([String this.text = '', bool this.done = false]);
-
-  bool get isEmpty => text.isEmpty;
-
-  clone() => new Item(text, done);
-
-  clear() {
-    text = '';
-    done = false;
-  }
-}
-
-// In 'server mode', this class fetches items from the server.
-class ServerController {
-  Http _http;
-
-  ServerController(Http this._http);
-
-  init(TodoController todo) {
-    _http(method: 'GET', url: '/todos').then((HttpResponse data) {
-      data.data.forEach((d) {
-        todo.items.add(new Item(d["text"], d["done"]));
-      });
-    });
-  }
-}
-
-// An implementation of ServerController that does nothing.
-// Logic in main.dart determines which implementation we should
-// use.
-class NoServerController implements ServerController {
-  init(TodoController todo) { }
-}
-
-
-@NgDirective(
-  selector: '[todo-controller]',
-  publishAs: 'todo'
-)
-class TodoController {
-  List<Item> items;
-  Item newItem;
-
-  TodoController(ServerController serverController) {
-    newItem = new Item();
-    items = [
-      new Item('Write Angular in Dart', true),
-      new Item('Write Dart in Angular'),
-      new Item('Do something useful')
-    ];
-
-    serverController.init(this);
-  }
-
-  // workaround for https://github.com/angular/angular.dart/issues/37
-  dynamic operator [](String key) {
-    if (key == 'newItem') {
-      return newItem;
-    }
-    return null;
-  }
-
-  add() {
-    if (newItem.isEmpty) return;
-
-    items.add(newItem.clone());
-    newItem.clear();
-  }
-
-  markAllDone() {
-    items.forEach((item) => item.done = true);
-  }
-
-  archiveDone() {
-    items.removeWhere((item) => item.done);
-  }
-
-  String classFor(Item item) {
-    return item.done ? 'done' : '';
-  }
-
-  int remaining() {
-    return items.where((item) => !item.done).length;
-  }
-}