Merge "Fix AoD front scrim being opaque at DOZE_PULSING"

packages/SystemUI/src/com/android/systemui/doze/DozeScreenBrightness.java

@@ -167,6 +167,10 @@ public class DozeScreenBrightness extends BroadcastReceiver implements DozeMachi
                 // again, it will only show after the brightness sensor has stabilized,
                 // avoiding a potential flicker.
                 scrimOpacity = 255;
+            } else if (!mScreenOff && mLightSensor == null) {
+                // No light sensor but previous state turned the screen black. Make the scrim
+                // transparent and below views visible.
+                scrimOpacity = 0;
             } else if (brightnessReady) {
                 // Only unblank scrim once brightness is ready.
                 scrimOpacity = computeScrimOpacity(sensorValue);

packages/SystemUI/tests/src/com/android/systemui/doze/DozeScreenBrightnessTest.java

@@ -172,6 +172,21 @@ public class DozeScreenBrightnessTest extends SysuiTestCase {
         assertEquals(1, mServiceFake.screenBrightness);
     }
 
+    @Test
+    public void testPulsing_withoutLightSensor_setsAoDDimmingScrimTransparent() throws Exception {
+        mScreen = new DozeScreenBrightness(mContext, mServiceFake, mSensorManager,
+                null /* sensor */, mBroadcastDispatcher, mDozeHost, null /* handler */,
+                DEFAULT_BRIGHTNESS, SENSOR_TO_BRIGHTNESS, SENSOR_TO_OPACITY,
+                true /* debuggable */);
+        mScreen.transitionTo(UNINITIALIZED, INITIALIZED);
+        mScreen.transitionTo(INITIALIZED, DOZE);
+        reset(mDozeHost);
+
+        mScreen.transitionTo(DOZE, DOZE_REQUEST_PULSE);
+
+        verify(mDozeHost).setAodDimmingScrim(eq(0f));
+    }
+
     @Test
     public void testDockedAod_usesLightSensor() {
         mScreen.transitionTo(UNINITIALIZED, INITIALIZED);