From c90507e49601d9cd1ade53db46eb4af747a6f80e Mon Sep 17 00:00:00 2001
From: Ilya Matyukhin <ilyamaty@google.com>
Date: Tue, 20 Aug 2019 15:38:57 -0700
Subject: [PATCH] Treat SENSOR_DIRTY as user not detected

Bug: 139620163
Test: no double vibration on authentication timeout while the sensor
is covered.

Change-Id: I26ec9ca0f911fb029eb9175fe1923c8e9a27e693
---
 .../java/com/android/server/biometrics/face/FaceService.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/services/core/java/com/android/server/biometrics/face/FaceService.java b/services/core/java/com/android/server/biometrics/face/FaceService.java
index a7065216f6a37..ee49f5885e4a3 100644
--- a/services/core/java/com/android/server/biometrics/face/FaceService.java
+++ b/services/core/java/com/android/server/biometrics/face/FaceService.java
@@ -223,7 +223,8 @@ public class FaceService extends BiometricServiceBase {
 
         @Override
         public boolean wasUserDetected() {
-            return mLastAcquire != FaceManager.FACE_ACQUIRED_NOT_DETECTED;
+            return mLastAcquire != FaceManager.FACE_ACQUIRED_NOT_DETECTED
+                    && mLastAcquire != FaceManager.FACE_ACQUIRED_SENSOR_DIRTY;
         }
 
         @Override