Rename UINode to Widget.

sky/examples/stocks2/lib/stock_app.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'package:sky/editing2/input.dart';
 import 'package:sky/rendering/box.dart';
 import 'package:sky/rendering/paragraph.dart';
 import 'package:sky/theme2/colors.dart' as colors;
 import 'package:sky/theme2/typography.dart' as typography;
 import 'package:sky/widgets/basic.dart';
 import 'package:sky/widgets/drawer.dart';
 import 'package:sky/widgets/drawer_header.dart';
 import 'package:sky/widgets/floating_action_button.dart';
 import 'package:sky/widgets/icon.dart';
 import 'package:sky/widgets/icon_button.dart';
 import 'package:sky/widgets/menu_divider.dart';
 import 'package:sky/widgets/menu_item.dart';
 import 'package:sky/widgets/modal_overlay.dart';
 import 'package:sky/widgets/popup_menu.dart';
 import 'package:sky/widgets/radio.dart';
 import 'package:sky/widgets/scaffold.dart';
 import 'package:sky/widgets/tool_bar.dart';
-import 'package:sky/widgets/ui_node.dart';
+import 'package:sky/widgets/widget.dart';
 
 import 'stock_data.dart';
 import 'stock_list.dart';
 import 'stock_menu.dart';
 
 enum StockMode { optimistic, pessimistic }
 
 class StocksApp extends App {
 
   List<Stock> _stocks = [];
@@ skipping 110 matching lines @@
           icon: 'action/settings',
           children: [new Text('Settings')]),
         new MenuItem(
           key: 'Help & Feedback',
           icon: 'action/help',
           children: [new Text('Help & Feedback')])
      ]
     );
   }
 
-  UINode buildToolBar() {
+  Widget buildToolBar() {
     return new ToolBar(
         left: new IconButton(
           icon: 'navigation/menu_white',
           onGestureTap: (_) => _drawerController.toggle()),
         center: new Text('Stocks', style: typography.white.title),
         right: [
           new IconButton(
             icon: 'action/search_white',
             onGestureTap: _handleSearchBegin),
           new IconButton(
             icon: 'navigation/more_vert_white',
             onGestureTap: _handleMenuShow)
         ],
         backgroundColor: colors.Purple[500]
       );
   }
 
   // TODO(abarth): Should we factor this into a SearchBar in the framework?
-  UINode buildSearchBar() {
+  Widget buildSearchBar() {
     return new ToolBar(
       left: new IconButton(
         icon: 'navigation/arrow_back_grey600',
         onGestureTap: _handleSearchEnd),
       center: new Input(
         focused: true,
         placeholder: 'Search stocks',
         onChanged: _handleSearchQueryChanged),
       backgroundColor: colors.Grey[50]
     );
   }
 
-  void addMenuToOverlays(List<UINode> overlays) {
+  void addMenuToOverlays(List<Widget> overlays) {
     if (_menuController == null)
       return;
     overlays.add(new ModalOverlay(
       children: [new StockMenu(
         controller: _menuController,
         autorefresh: _autorefresh,
         onAutorefreshChanged: _handleAutorefreshChanged
       )],
       onDismiss: _handleMenuHide));
   }
 
-  UINode build() {
-    List<UINode> overlays = [
+  Widget build() {
+    List<Widget> overlays = [
       new Scaffold(
         toolbar: _isSearching ? buildSearchBar() : buildToolBar(),
         body: new Stocklist(stocks: _stocks, query: _searchQuery),
         floatingActionButton: new FloatingActionButton(
           child: new Icon(type: 'content/add_white', size: 24)
         ),
         drawer: _drawerShowing ? buildDrawer() : null
       ),
     ];
     addMenuToOverlays(overlays);
     return new Stack(overlays);
   }
 }
 
 void main() {
   print("starting stocks app!");
   App app = new StocksApp();
-  UINodeAppView.appView.onFrame = () {
+  WidgetAppView.appView.onFrame = () {
     // uncomment this for debugging:
-    // UINodeAppView.appView.debugDumpRenderTree();
+    // WidgetAppView.appView.debugDumpRenderTree();
   };
 }