Fix issue #2512131: Trackball goes up when moving

Change-Id: Ib403de88f24bc1b6e5417732e3b69f89a5160bbc

core/java/com/android/internal/widget/PointerLocationView.java

@@ -60,6 +60,7 @@ public class PointerLocationView extends View {
     
     public PointerLocationView(Context c) {
         super(c);
+        setFocusable(true);
         mVC = ViewConfiguration.get(c);
         mTextPaint = new Paint();
         mTextPaint.setAntiAlias(true);
@@ -350,4 +351,11 @@ public class PointerLocationView extends View {
         addTouchEvent(event);
         return true;
     }
+
+    @Override
+    public boolean onTrackballEvent(MotionEvent event) {
+        Log.i("Pointer", "Trackball: " + event);
+        return super.onTrackballEvent(event);
+    }
+    
 }

services/java/com/android/server/KeyInputQueue.java

@@ -839,8 +839,6 @@ public abstract class KeyInputQueue {
                                         addLocked(di, curTimeNano, ev.flags,
                                                 RawInputEvent.CLASS_TRACKBALL, me);
                                     }
-                                    
-                                    ms.finish();
                                 }
                             }
                         }