Merge "Fix race condition in lowlight trigger logic" into udc-dev am: f0cba6ab5a (6b42531d) · Commits · e / os / android_frameworks_base

libs/dream/lowlight/Android.bp

+6 −0

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ filegroup {
		name: "low_light_dream_lib-sources",
		srcs: [
		"src/*/.java",
		"src/*/.kt",
		],
		path: "src",
		}
		@@ -37,10 +38,15 @@ android_library {
		resource_dirs: [
		"res",
		],
		libs: [
		"kotlin-annotations",
		],
		static_libs: [
		"androidx.arch.core_core-runtime",
		"dagger2",
		"jsr330",
		"kotlinx-coroutines-android",
		"kotlinx-coroutines-core",
		],
		manifest: "AndroidManifest.xml",
		plugins: ["dagger2-compiler"],

libs/dream/lowlight/res/values/config.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -17,4 +17,7 @@
		<resources>
		<!-- The dream component used when the device is low light environment. -->
		<string translatable="false" name="config_lowLightDreamComponent"/>
		<!-- The max number of milliseconds to wait for the low light transition before setting
		the system dream component -->
		<integer name="config_lowLightTransitionTimeoutMs">2000</integer>
		</resources>

libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.java

deleted100644 → 0

+0 −122

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2022 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.dream.lowlight;

		import static com.android.dream.lowlight.dagger.LowLightDreamModule.LOW_LIGHT_DREAM_COMPONENT;

		import android.annotation.IntDef;
		import android.annotation.RequiresPermission;
		import android.app.DreamManager;
		import android.content.ComponentName;
		import android.util.Log;

		import androidx.annotation.Nullable;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;

		import javax.inject.Inject;
		import javax.inject.Named;

		/**
		* Maintains the ambient light mode of the environment the device is in, and sets a low light dream
		* component, if present, as the system dream when the ambient light mode is low light.
		*
		* @hide
		*/
		public final class LowLightDreamManager {
		private static final String TAG = "LowLightDreamManager";
		private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);

		/**
		* @hide
		*/
		@Retention(RetentionPolicy.SOURCE)
		@IntDef(prefix = { "AMBIENT_LIGHT_MODE_" }, value = {
		AMBIENT_LIGHT_MODE_UNKNOWN,
		AMBIENT_LIGHT_MODE_REGULAR,
		AMBIENT_LIGHT_MODE_LOW_LIGHT
		})
		public @interface AmbientLightMode {}

		/**
		* Constant for ambient light mode being unknown.
		* @hide
		*/
		public static final int AMBIENT_LIGHT_MODE_UNKNOWN = 0;

		/**
		* Constant for ambient light mode being regular / bright.
		* @hide
		*/
		public static final int AMBIENT_LIGHT_MODE_REGULAR = 1;

		/**
		* Constant for ambient light mode being low light / dim.
		* @hide
		*/
		public static final int AMBIENT_LIGHT_MODE_LOW_LIGHT = 2;

		private final DreamManager mDreamManager;
		private final LowLightTransitionCoordinator mLowLightTransitionCoordinator;

		@Nullable
		private final ComponentName mLowLightDreamComponent;

		private int mAmbientLightMode = AMBIENT_LIGHT_MODE_UNKNOWN;

		@Inject
		public LowLightDreamManager(
		DreamManager dreamManager,
		LowLightTransitionCoordinator lowLightTransitionCoordinator,
		@Named(LOW_LIGHT_DREAM_COMPONENT) @Nullable ComponentName lowLightDreamComponent) {
		mDreamManager = dreamManager;
		mLowLightTransitionCoordinator = lowLightTransitionCoordinator;
		mLowLightDreamComponent = lowLightDreamComponent;
		}

		/**
		* Sets the current ambient light mode.
		* @hide
		*/
		@RequiresPermission(android.Manifest.permission.WRITE_DREAM_STATE)
		public void setAmbientLightMode(@AmbientLightMode int ambientLightMode) {
		if (mLowLightDreamComponent == null) {
		if (DEBUG) {
		Log.d(TAG, "ignore ambient light mode change because low light dream component "
		+ "is empty");
		}
		return;
		}

		if (mAmbientLightMode == ambientLightMode) {
		return;
		}

		if (DEBUG) {
		Log.d(TAG, "ambient light mode changed from " + mAmbientLightMode + " to "
		+ ambientLightMode);
		}

		mAmbientLightMode = ambientLightMode;

		boolean shouldEnterLowLight = mAmbientLightMode == AMBIENT_LIGHT_MODE_LOW_LIGHT;
		mLowLightTransitionCoordinator.notifyBeforeLowLightTransition(shouldEnterLowLight,
		() -> mDreamManager.setSystemDreamComponent(
		shouldEnterLowLight ? mLowLightDreamComponent : null));
		}
		}

libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.kt

0 → 100644

+138 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package com.android.dream.lowlight

		import android.Manifest
		import android.annotation.IntDef
		import android.annotation.RequiresPermission
		import android.app.DreamManager
		import android.content.ComponentName
		import android.util.Log
		import com.android.dream.lowlight.dagger.LowLightDreamModule
		import com.android.dream.lowlight.dagger.qualifiers.Application
		import kotlinx.coroutines.CoroutineScope
		import kotlinx.coroutines.Job
		import kotlinx.coroutines.TimeoutCancellationException
		import kotlinx.coroutines.launch
		import javax.inject.Inject
		import javax.inject.Named
		import kotlin.time.DurationUnit
		import kotlin.time.toDuration

		/**
		* Maintains the ambient light mode of the environment the device is in, and sets a low light dream
		* component, if present, as the system dream when the ambient light mode is low light.
		*
		* @hide
		*/
		class LowLightDreamManager @Inject constructor(
		@Application private val coroutineScope: CoroutineScope,
		private val dreamManager: DreamManager,
		private val lowLightTransitionCoordinator: LowLightTransitionCoordinator,
		@param:Named(LowLightDreamModule.LOW_LIGHT_DREAM_COMPONENT)
		private val lowLightDreamComponent: ComponentName?,
		@param:Named(LowLightDreamModule.LOW_LIGHT_TRANSITION_TIMEOUT_MS)
		private val lowLightTransitionTimeoutMs: Long
		) {
		/**
		* @hide
		*/
		@Retention(AnnotationRetention.SOURCE)
		@IntDef(
		prefix = ["AMBIENT_LIGHT_MODE_"],
		value = [
		AMBIENT_LIGHT_MODE_UNKNOWN,
		AMBIENT_LIGHT_MODE_REGULAR,
		AMBIENT_LIGHT_MODE_LOW_LIGHT
		]
		)
		annotation class AmbientLightMode

		private var mTransitionJob: Job? = null
		private var mAmbientLightMode = AMBIENT_LIGHT_MODE_UNKNOWN
		private val mLowLightTransitionTimeout =
		lowLightTransitionTimeoutMs.toDuration(DurationUnit.MILLISECONDS)

		/**
		* Sets the current ambient light mode.
		*
		* @hide
		*/
		@RequiresPermission(Manifest.permission.WRITE_DREAM_STATE)
		fun setAmbientLightMode(@AmbientLightMode ambientLightMode: Int) {
		if (lowLightDreamComponent == null) {
		if (DEBUG) {
		Log.d(
		TAG,
		"ignore ambient light mode change because low light dream component is empty"
		)
		}
		return
		}
		if (mAmbientLightMode == ambientLightMode) {
		return
		}
		if (DEBUG) {
		Log.d(
		TAG, "ambient light mode changed from $mAmbientLightMode to $ambientLightMode"
		)
		}
		mAmbientLightMode = ambientLightMode
		val shouldEnterLowLight = mAmbientLightMode == AMBIENT_LIGHT_MODE_LOW_LIGHT

		// Cancel any previous transitions
		mTransitionJob?.cancel()
		mTransitionJob = coroutineScope.launch {
		try {
		lowLightTransitionCoordinator.waitForLowLightTransitionAnimation(
		timeout = mLowLightTransitionTimeout,
		entering = shouldEnterLowLight
		)
		} catch (ex: TimeoutCancellationException) {
		Log.e(TAG, "timed out while waiting for low light animation", ex)
		}
		dreamManager.setSystemDreamComponent(
		if (shouldEnterLowLight) lowLightDreamComponent else null
		)
		}
		}

		companion object {
		private const val TAG = "LowLightDreamManager"
		private val DEBUG = Log.isLoggable(TAG, Log.DEBUG)

		/**
		* Constant for ambient light mode being unknown.
		*
		* @hide
		*/
		const val AMBIENT_LIGHT_MODE_UNKNOWN = 0

		/**
		* Constant for ambient light mode being regular / bright.
		*
		* @hide
		*/
		const val AMBIENT_LIGHT_MODE_REGULAR = 1

		/**
		* Constant for ambient light mode being low light / dim.
		*
		* @hide
		*/
		const val AMBIENT_LIGHT_MODE_LOW_LIGHT = 2
		}
		}

libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.java→libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.kt

+118 −0

Original line number	Diff line number	Diff line
		@@ -13,51 +13,47 @@
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/
		package com.android.dream.lowlight

		package com.android.dream.lowlight;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.annotation.Nullable;

		import javax.inject.Inject;
		import javax.inject.Singleton;
		import android.animation.Animator
		import android.animation.AnimatorListenerAdapter
		import com.android.dream.lowlight.util.suspendCoroutineWithTimeout
		import javax.inject.Inject
		import javax.inject.Singleton
		import kotlin.coroutines.resume
		import kotlin.time.Duration

		/**
		* Helper class that allows listening and running animations before entering or exiting low light.
		*/
		@Singleton
		public class LowLightTransitionCoordinator {
		class LowLightTransitionCoordinator @Inject constructor() {
		/**
		* Listener that is notified before low light entry.
		*/
		public interface LowLightEnterListener {
		interface LowLightEnterListener {
		/**
		* Callback that is notified before the device enters low light.
		*
		* @return an optional animator that will be waited upon before entering low light.
		*/
		Animator onBeforeEnterLowLight();
		fun onBeforeEnterLowLight(): Animator?
		}

		/**
		* Listener that is notified before low light exit.
		*/
		public interface LowLightExitListener {
		interface LowLightExitListener {
		/**
		* Callback that is notified before the device exits low light.
		*
		* @return an optional animator that will be waited upon before exiting low light.
		*/
		Animator onBeforeExitLowLight();
		fun onBeforeExitLowLight(): Animator?
		}

		private LowLightEnterListener mLowLightEnterListener;
		private LowLightExitListener mLowLightExitListener;

		@Inject
		public LowLightTransitionCoordinator() {
		}
		private var mLowLightEnterListener: LowLightEnterListener? = null
		private var mLowLightExitListener: LowLightExitListener? = null

		/**
		* Sets the listener for the low light enter event.
		@@ -65,8 +61,8 @@ public class LowLightTransitionCoordinator {
		* Only one listener can be set at a time. This method will overwrite any previously set
		* listener. Null can be used to unset the listener.
		*/
		public void setLowLightEnterListener(@Nullable LowLightEnterListener lowLightEnterListener) {
		mLowLightEnterListener = lowLightEnterListener;
		fun setLowLightEnterListener(lowLightEnterListener: LowLightEnterListener?) {
		mLowLightEnterListener = lowLightEnterListener
		}

		/**
		@@ -75,37 +71,48 @@ public class LowLightTransitionCoordinator {
		* Only one listener can be set at a time. This method will overwrite any previously set
		* listener. Null can be used to unset the listener.
		*/
		public void setLowLightExitListener(@Nullable LowLightExitListener lowLightExitListener) {
		mLowLightExitListener = lowLightExitListener;
		fun setLowLightExitListener(lowLightExitListener: LowLightExitListener?) {
		mLowLightExitListener = lowLightExitListener
		}

		/**
		* Notifies listeners that the device is about to enter or exit low light.
		* Notifies listeners that the device is about to enter or exit low light, and waits for the
		* animation to complete. If this function is cancelled, the animation is also cancelled.
		*
		* @param timeout the maximum duration to wait for the transition animation. If the animation
		* does not complete within this time period, a
		* @param entering true if listeners should be notified before entering low light, false if this
		* is notifying before exiting.
		* @param callback callback that will be run after listeners complete.
		*/
		void notifyBeforeLowLightTransition(boolean entering, Runnable callback) {
		Animator animator = null;

		suspend fun waitForLowLightTransitionAnimation(timeout: Duration, entering: Boolean) =
		suspendCoroutineWithTimeout(timeout) { continuation ->
		var animator: Animator? = null
		if (entering && mLowLightEnterListener != null) {
		animator = mLowLightEnterListener.onBeforeEnterLowLight();
		animator = mLowLightEnterListener!!.onBeforeEnterLowLight()
		} else if (!entering && mLowLightExitListener != null) {
		animator = mLowLightExitListener.onBeforeExitLowLight();
		animator = mLowLightExitListener!!.onBeforeExitLowLight()
		}

		if (animator == null) {
		continuation.resume(Unit)
		return@suspendCoroutineWithTimeout
		}

		// If the listener returned an animator to indicate it was running an animation, run the
		// callback after the animation completes, otherwise call the callback directly.
		if (animator != null) {
		animator.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animator) {
		callback.run();
		val listener = object : AnimatorListenerAdapter() {
		override fun onAnimationEnd(animator: Animator) {
		continuation.resume(Unit)
		}

		override fun onAnimationCancel(animation: Animator) {
		continuation.cancel()
		}
		}
		});
		} else {
		callback.run();
		animator.addListener(listener)
		continuation.invokeOnCancellation {
		animator.removeListener(listener)
		animator.cancel()
		}
		}
		}