Improve Material ink effects

sky/framework/fn.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.
 
 library fn;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:sky' as sky;
 import 'reflect.dart' as reflect;
@@ skipping 157 matching lines @@
 
   static final Set<String> _registeredEvents = new HashSet<String>();
 
   static Map<String, sky.EventListener> _createListeners({
     EventListener onWheel,
     GestureEventListener onGestureFlingCancel,
     GestureEventListener onGestureFlingStart,
     GestureEventListener onGestureScrollStart,
     GestureEventListener onGestureScrollUpdate,
     GestureEventListener onGestureTap,
+    GestureEventListener onGestureTapDown,
     PointerEventListener onPointerCancel,
     PointerEventListener onPointerDown,
     PointerEventListener onPointerMove,
     PointerEventListener onPointerUp,
     Map<String, sky.EventListener> custom
   }) {
     var listeners = custom != null ?
         new HashMap<String, sky.EventListener>.from(custom) :
         new HashMap<String, sky.EventListener>();
 
     if (onWheel != null)
       listeners['wheel'] = onWheel;
     if (onGestureFlingCancel != null)
       listeners['gestureflingcancel'] = onGestureFlingCancel;
     if (onGestureFlingStart != null)
       listeners['gestureflingstart'] = onGestureFlingStart;
     if (onGestureScrollStart != null)
       listeners['gesturescrollstart'] = onGestureScrollStart;
     if (onGestureScrollUpdate != null)
       listeners['gesturescrollupdate'] = onGestureScrollUpdate;
     if (onGestureTap != null)
       listeners['gesturetap'] = onGestureTap;
+    if (onGestureTapDown != null)
+      listeners['gesturetapdown'] = onGestureTapDown;
     if (onPointerCancel != null)
       listeners['pointercancel'] = onPointerCancel;
     if (onPointerDown != null)
       listeners['pointerdown'] = onPointerDown;
     if (onPointerMove != null)
       listeners['pointermove'] = onPointerMove;
     if (onPointerUp != null)
       listeners['pointerup'] = onPointerUp;
 
     return listeners;
   }
 
   EventTarget(Node content, {
     EventListener onWheel,
     GestureEventListener onGestureFlingCancel,
     GestureEventListener onGestureFlingStart,
     GestureEventListener onGestureScrollStart,
     GestureEventListener onGestureScrollUpdate,
     GestureEventListener onGestureTap,
+    GestureEventListener onGestureTapDown,
     PointerEventListener onPointerCancel,
     PointerEventListener onPointerDown,
     PointerEventListener onPointerMove,
     PointerEventListener onPointerUp,
     Map<String, sky.EventListener> custom
   }) : this.content = content,
        listeners = _createListeners(
          onWheel: onWheel,
          onGestureFlingCancel: onGestureFlingCancel,
          onGestureFlingStart: onGestureFlingStart,
          onGestureScrollUpdate: onGestureScrollUpdate,
          onGestureScrollStart: onGestureScrollStart,
          onGestureTap: onGestureTap,
+         onGestureTapDown: onGestureTapDown,
          onPointerCancel: onPointerCancel,
          onPointerDown: onPointerDown,
          onPointerMove: onPointerMove,
          onPointerUp: onPointerUp,
          custom: custom
        ),
        super(key: content._key);
 
   void _handleEvent(sky.Event e) {
     sky.EventListener listener = listeners[e.type];
@@ skipping 520 matching lines @@
 
       _sync(null, _host, null);
       assert(_root is sky.Node);
 
       sw.stop();
       if (_shouldLogRenderDuration)
         print("Initial build: ${sw.elapsedMicroseconds} microseconds");
     });
   }
 }