Add ripples whenever the user drops something on the Home screen.

Change-Id: I68d88ba3066be4308265cf550ded12095f58dc2a
diff --git a/src/com/android/wallpaper/fall/FallRS.java b/src/com/android/wallpaper/fall/FallRS.java
index 9849526..d66dce5 100644
--- a/src/com/android/wallpaper/fall/FallRS.java
+++ b/src/com/android/wallpaper/fall/FallRS.java
@@ -118,6 +118,8 @@
             boolean resultRequested) {
         if ("android.wallpaper.tap".equals(action)) {
             addDrop(x + (mWorldState.width * mWorldState.xOffset), y);
+        } else if ("android.home.drop".equals(action)) {
+            addDrop(x + (mWorldState.width * mWorldState.xOffset), y);
         }
         return null;
     }
diff --git a/src/com/android/wallpaper/fall/FallWallpaper.java b/src/com/android/wallpaper/fall/FallWallpaper.java
index 8902bbd..e96fc0c 100644
--- a/src/com/android/wallpaper/fall/FallWallpaper.java
+++ b/src/com/android/wallpaper/fall/FallWallpaper.java
@@ -23,4 +23,4 @@
     protected RenderScriptScene createScene(int width, int height) {
         return new FallRS(width, height);
     }
-}
\ No newline at end of file
+}