Send live wallpaper taps.

Change-Id: I25465e6fa7a69ef5c35e69ddc375e65797f44bc6
diff --git a/src/com/android/launcher2/PagedView.java b/src/com/android/launcher2/PagedView.java
index 31cfb5b..257531e 100644
--- a/src/com/android/launcher2/PagedView.java
+++ b/src/com/android/launcher2/PagedView.java
@@ -757,8 +757,9 @@
                 break;
             }
 
-            case MotionEvent.ACTION_CANCEL:
             case MotionEvent.ACTION_UP:
+                onWallpaperTap(ev);
+            case MotionEvent.ACTION_CANCEL:
                 mTouchState = TOUCH_STATE_REST;
                 mAllowLongPress = false;
                 mActivePointerId = INVALID_POINTER;
@@ -958,6 +959,8 @@
                 } else {
                     snapToDestination();
                 }
+            } else {
+                onWallpaperTap(ev);
             }
             mTouchState = TOUCH_STATE_REST;
             mActivePointerId = INVALID_POINTER;
@@ -1011,6 +1014,12 @@
                 mVelocityTracker.clear();
             }
         }
+        if (mTouchState == TOUCH_STATE_REST) {
+            onWallpaperTap(ev);
+        }
+    }
+
+    protected void onWallpaperTap(MotionEvent ev) {
     }
 
     @Override