Merge "Release DelayedWakelock on background thread" into main
diff --git a/packages/SystemUI/src/com/android/systemui/doze/dagger/DozeModule.java b/packages/SystemUI/src/com/android/systemui/doze/dagger/DozeModule.java
index db0c3c6..0fd6887 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/dagger/DozeModule.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/dagger/DozeModule.java
@@ -18,10 +18,7 @@
 
 import android.content.Context;
 import android.hardware.Sensor;
-import android.os.Handler;
 
-import com.android.systemui.res.R;
-import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dagger.qualifiers.UiBackground;
 import com.android.systemui.doze.DozeAuthRemover;
 import com.android.systemui.doze.DozeBrightnessHostForwarder;
@@ -40,6 +37,7 @@
 import com.android.systemui.doze.DozeTriggers;
 import com.android.systemui.doze.DozeUi;
 import com.android.systemui.doze.DozeWallpaperState;
+import com.android.systemui.res.R;
 import com.android.systemui.statusbar.phone.DozeParameters;
 import com.android.systemui.statusbar.policy.DevicePostureController;
 import com.android.systemui.util.sensors.AsyncSensorManager;
@@ -75,9 +73,8 @@
 
     @Provides
     @DozeScope
-    static WakeLock providesDozeWakeLock(DelayedWakeLock.Builder delayedWakeLockBuilder,
-            @Main Handler handler) {
-        return delayedWakeLockBuilder.setHandler(handler).setTag("Doze").build();
+    static WakeLock providesDozeWakeLock(DelayedWakeLock.Factory delayedWakeLockFactory) {
+        return delayedWakeLockFactory.create("Doze");
     }
 
     @Provides
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
index 459b368..aabe4a0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ScrimController.java
@@ -300,7 +300,7 @@
             DozeParameters dozeParameters,
             AlarmManager alarmManager,
             KeyguardStateController keyguardStateController,
-            DelayedWakeLock.Builder delayedWakeLockBuilder,
+            DelayedWakeLock.Factory delayedWakeLockFactory,
             Handler handler,
             KeyguardUpdateMonitor keyguardUpdateMonitor,
             DockManager dockManager,
@@ -331,7 +331,7 @@
         mScreenOffAnimationController = screenOffAnimationController;
         mTimeTicker = new AlarmTimeout(alarmManager, this::onHideWallpaperTimeout,
                 "hide_aod_wallpaper", mHandler);
-        mWakeLock = delayedWakeLockBuilder.setHandler(mHandler).setTag("Scrims").build();
+        mWakeLock = delayedWakeLockFactory.create("Scrims");
         // Scrim alpha is initially set to the value on the resource but might be changed
         // to make sure that text on top of it is legible.
         mDozeParameters = dozeParameters;
diff --git a/packages/SystemUI/src/com/android/systemui/util/wakelock/DelayedWakeLock.java b/packages/SystemUI/src/com/android/systemui/util/wakelock/DelayedWakeLock.java
index 972895d..039109e 100644
--- a/packages/SystemUI/src/com/android/systemui/util/wakelock/DelayedWakeLock.java
+++ b/packages/SystemUI/src/com/android/systemui/util/wakelock/DelayedWakeLock.java
@@ -19,7 +19,11 @@
 import android.content.Context;
 import android.os.Handler;
 
-import javax.inject.Inject;
+import com.android.systemui.dagger.qualifiers.Background;
+
+import dagger.assisted.Assisted;
+import dagger.assisted.AssistedFactory;
+import dagger.assisted.AssistedInject;
 
 /**
  * A wake lock that has a built in delay when releasing to give the framebuffer time to update.
@@ -32,9 +36,11 @@
     private final Handler mHandler;
     private final WakeLock mInner;
 
-    public DelayedWakeLock(Handler h, WakeLock inner) {
-        mHandler = h;
-        mInner = inner;
+    @AssistedInject
+    public DelayedWakeLock(@Background Handler handler, Context context, WakeLockLogger logger,
+            @Assisted String tag) {
+        mInner = WakeLock.createPartial(context, logger, tag);
+        mHandler = handler;
     }
 
     @Override
@@ -58,46 +64,11 @@
     }
 
     /**
-     * An injectable builder for {@see DelayedWakeLock} that has the context already filled in.
+     * Factory to create the instance of DelayedWakeLock class.
      */
-    public static class Builder {
-        private final Context mContext;
-        private final WakeLockLogger mLogger;
-        private String mTag;
-        private Handler mHandler;
-
-        /**
-         * Constructor for DelayedWakeLock.Builder
-         */
-        @Inject
-        public Builder(Context context, WakeLockLogger logger) {
-            mContext = context;
-            mLogger = logger;
-        }
-
-        /**
-         * Set the tag for the WakeLock.
-         */
-        public Builder setTag(String tag) {
-            mTag = tag;
-
-            return this;
-        }
-
-        /**
-         * Set the handler for the DelayedWakeLock.
-         */
-        public Builder setHandler(Handler handler) {
-            mHandler = handler;
-
-            return this;
-        }
-
-        /**
-         * Build the DelayedWakeLock.
-         */
-        public DelayedWakeLock build() {
-            return new DelayedWakeLock(mHandler, WakeLock.createPartial(mContext, mLogger, mTag));
-        }
+    @AssistedFactory
+    public interface Factory {
+        /** creates the instance of DelayedWakeLock class. */
+        DelayedWakeLock create(String tag);
     }
-}
+}
\ No newline at end of file
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
index d9eaea1..b3a47d7 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/ScrimControllerTest.java
@@ -48,7 +48,6 @@
 import android.content.res.ColorStateList;
 import android.content.res.TypedArray;
 import android.graphics.Color;
-import android.os.Handler;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableLooper;
 import android.util.MathUtils;
@@ -135,7 +134,7 @@
     @Mock private AlarmManager mAlarmManager;
     @Mock private DozeParameters mDozeParameters;
     @Mock private LightBarController mLightBarController;
-    @Mock private DelayedWakeLock.Builder mDelayedWakeLockBuilder;
+    @Mock private DelayedWakeLock.Factory mDelayedWakeLockFactory;
     @Mock private DelayedWakeLock mWakeLock;
     @Mock private KeyguardStateController mKeyguardStateController;
     @Mock private KeyguardUpdateMonitor mKeyguardUpdateMonitor;
@@ -262,11 +261,7 @@
         }).when(mLightBarController).setScrimState(
                 any(ScrimState.class), anyFloat(), any(GradientColors.class));
 
-        when(mDelayedWakeLockBuilder.setHandler(any(Handler.class)))
-                .thenReturn(mDelayedWakeLockBuilder);
-        when(mDelayedWakeLockBuilder.setTag(any(String.class)))
-                .thenReturn(mDelayedWakeLockBuilder);
-        when(mDelayedWakeLockBuilder.build()).thenReturn(mWakeLock);
+        when(mDelayedWakeLockFactory.create(any(String.class))).thenReturn(mWakeLock);
         when(mDockManager.isDocked()).thenReturn(false);
 
         when(mKeyguardTransitionInteractor.transition(any(), any()))
@@ -281,7 +276,7 @@
                 mDozeParameters,
                 mAlarmManager,
                 mKeyguardStateController,
-                mDelayedWakeLockBuilder,
+                mDelayedWakeLockFactory,
                 new FakeHandler(mLooper.getLooper()),
                 mKeyguardUpdateMonitor,
                 mDockManager,
@@ -990,7 +985,7 @@
                 mDozeParameters,
                 mAlarmManager,
                 mKeyguardStateController,
-                mDelayedWakeLockBuilder,
+                mDelayedWakeLockFactory,
                 new FakeHandler(mLooper.getLooper()),
                 mKeyguardUpdateMonitor,
                 mDockManager,