attempt at making menuitems react

sky/examples/stocks-fn/stockrow.dart

Index: sky/examples/stocks-fn/stockrow.dart
diff --git a/sky/examples/stocks-fn/stockrow.dart b/sky/examples/stocks-fn/stockrow.dart
index a5681f1f48fa670d05d426d9c1670e6135bb25c7..647571f108dd203de8eb813d974e8eba8e5f34bf 100644
--- a/sky/examples/stocks-fn/stockrow.dart
+++ b/sky/examples/stocks-fn/stockrow.dart
@@ -1,9 +1,8 @@
 part of stocksapp;
 
-class StockRow extends Component {
+class StockRow extends MaterialComponent {
 
   Stock stock;
-  LinkedHashSet<SplashAnimation> _splashes;
 
   static Style _style = new Style('''
     transform: translateX(0);
@@ -64,61 +63,11 @@ class StockRow extends Component {
       )
     ];
 
-    if (_splashes != null) {
-      children.addAll(_splashes.map((s) => new InkSplash(s.onStyleChanged)));
-    }
+    children.add(super.render());
 
     return new Container(
       style: _style,
-      onScrollStart: _cancelSplashes,
-      onWheel: _cancelSplashes,
-      onPointerDown: _handlePointerDown,
       children: children
     );
   }
-
-  sky.ClientRect _getBoundingRect() => getRoot().getBoundingClientRect();
-
-  void _handlePointerDown(sky.Event event) {
-    setState(() {
-      if (_splashes == null) {
-        _splashes = new LinkedHashSet<SplashAnimation>();
-      }
-
-      var splash;
-      splash = new SplashAnimation(_getBoundingRect(), event.x, event.y,
-                                   onDone: () { _splashDone(splash); });
-
-      _splashes.add(splash);
-    });
-  }
-
-  void _cancelSplashes(sky.Event event) {
-    if (_splashes == null) {
-      return;
-    }
-
-    setState(() {
-      var splashes = _splashes;
-      _splashes = null;
-      splashes.forEach((s) { s.cancel(); });
-    });
-  }
-
-  void willUnmount() {
-    _cancelSplashes(null);
-  }
-
-  void _splashDone(SplashAnimation splash) {
-    if (_splashes == null) {
-      return;
-    }
-
-    setState(() {
-      _splashes.remove(splash);
-      if (_splashes.length == 0) {
-        _splashes = null;
-      }
-    });
-  }
 }