From fecbc67e0d39bc3b575be83d1bfc27de0504b47a Mon Sep 17 00:00:00 2001
From: Prashant Malani <pmalani@google.com>
Date: Fri, 22 Jul 2016 15:38:05 -0700
Subject: [PATCH] Let Rotary encoder events skip IME

Rotary Encoder input events don't need to go through the IME, and hence
should skip it. This will save IPC round trip time, and cut down on
latency.

Bug: 29207649
Change-Id: I8b5062b9c409b338b2254232a2e0f7819d9b71de
---
 core/java/android/view/ViewRootImpl.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 4dc1009fe4468..03c97bd9b00cb 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -6039,7 +6039,8 @@ public final class ViewRootImpl implements ViewParent,
                 return true;
             }
             return mEvent instanceof MotionEvent
-                    && mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER);
+                    && (mEvent.isFromSource(InputDevice.SOURCE_CLASS_POINTER)
+                        || mEvent.isFromSource(InputDevice.SOURCE_ROTARY_ENCODER));
         }
 
         public boolean shouldSendToSynthesizer() {