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-rw-r--r--libs/dream/lowlight/Android.bp6
-rw-r--r--libs/dream/lowlight/res/values/config.xml3
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.java122
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.kt138
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.java111
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.kt118
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.java61
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.kt82
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Application.kt9
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Main.kt8
-rw-r--r--libs/dream/lowlight/src/com/android/dream/lowlight/util/KotlinUtils.kt29
-rw-r--r--libs/dream/lowlight/tests/Android.bp2
-rw-r--r--libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.java109
-rw-r--r--libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.kt169
-rw-r--r--libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.java113
-rw-r--r--libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.kt184
-rw-r--r--libs/dream/lowlight/tests/src/com/android/dream/lowlight/utils/KotlinMockitoHelpers.kt125
17 files changed, 873 insertions, 516 deletions
diff --git a/libs/dream/lowlight/Android.bp b/libs/dream/lowlight/Android.bp
index 5b5b0f07cabd..e4d2e022cd76 100644
--- a/libs/dream/lowlight/Android.bp
+++ b/libs/dream/lowlight/Android.bp
@@ -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"],
diff --git a/libs/dream/lowlight/res/values/config.xml b/libs/dream/lowlight/res/values/config.xml
index 70fe0738a6f4..78fefbf41141 100644
--- a/libs/dream/lowlight/res/values/config.xml
+++ b/libs/dream/lowlight/res/values/config.xml
@@ -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>
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.java b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.java
deleted file mode 100644
index 3125f088c72b..000000000000
--- a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.java
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * 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));
- }
-}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.kt
new file mode 100644
index 000000000000..96bfb78eff0d
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightDreamManager.kt
@@ -0,0 +1,138 @@
+/*
+ * 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
+ }
+}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.java b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.java
deleted file mode 100644
index 874a2d5af75e..000000000000
--- a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * 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.animation.Animator;
-import android.animation.AnimatorListenerAdapter;
-import android.annotation.Nullable;
-
-import javax.inject.Inject;
-import javax.inject.Singleton;
-
-/**
- * Helper class that allows listening and running animations before entering or exiting low light.
- */
-@Singleton
-public class LowLightTransitionCoordinator {
- /**
- * Listener that is notified before low light entry.
- */
- public 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();
- }
-
- /**
- * Listener that is notified before low light exit.
- */
- public 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();
- }
-
- private LowLightEnterListener mLowLightEnterListener;
- private LowLightExitListener mLowLightExitListener;
-
- @Inject
- public LowLightTransitionCoordinator() {
- }
-
- /**
- * Sets the listener for the low light enter event.
- *
- * 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;
- }
-
- /**
- * Sets the listener for the low light exit event.
- *
- * 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;
- }
-
- /**
- * Notifies listeners that the device is about to enter or exit low light.
- *
- * @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;
-
- if (entering && mLowLightEnterListener != null) {
- animator = mLowLightEnterListener.onBeforeEnterLowLight();
- } else if (!entering && mLowLightExitListener != null) {
- animator = mLowLightExitListener.onBeforeExitLowLight();
- }
-
- // 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();
- }
- });
- } else {
- callback.run();
- }
- }
-}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.kt
new file mode 100644
index 000000000000..26efb55fa560
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/LowLightTransitionCoordinator.kt
@@ -0,0 +1,118 @@
+/*
+ * 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.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
+class LowLightTransitionCoordinator @Inject constructor() {
+ /**
+ * Listener that is notified before low light entry.
+ */
+ 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.
+ */
+ fun onBeforeEnterLowLight(): Animator?
+ }
+
+ /**
+ * Listener that is notified before low light exit.
+ */
+ 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.
+ */
+ fun onBeforeExitLowLight(): Animator?
+ }
+
+ private var mLowLightEnterListener: LowLightEnterListener? = null
+ private var mLowLightExitListener: LowLightExitListener? = null
+
+ /**
+ * Sets the listener for the low light enter event.
+ *
+ * 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.
+ */
+ fun setLowLightEnterListener(lowLightEnterListener: LowLightEnterListener?) {
+ mLowLightEnterListener = lowLightEnterListener
+ }
+
+ /**
+ * Sets the listener for the low light exit event.
+ *
+ * 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.
+ */
+ fun setLowLightExitListener(lowLightExitListener: LowLightExitListener?) {
+ mLowLightExitListener = lowLightExitListener
+ }
+
+ /**
+ * 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.
+ */
+ suspend fun waitForLowLightTransitionAnimation(timeout: Duration, entering: Boolean) =
+ suspendCoroutineWithTimeout(timeout) { continuation ->
+ var animator: Animator? = null
+ if (entering && mLowLightEnterListener != null) {
+ animator = mLowLightEnterListener!!.onBeforeEnterLowLight()
+ } else if (!entering && mLowLightExitListener != null) {
+ 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.
+ val listener = object : AnimatorListenerAdapter() {
+ override fun onAnimationEnd(animator: Animator) {
+ continuation.resume(Unit)
+ }
+
+ override fun onAnimationCancel(animation: Animator) {
+ continuation.cancel()
+ }
+ }
+ animator.addListener(listener)
+ continuation.invokeOnCancellation {
+ animator.removeListener(listener)
+ animator.cancel()
+ }
+ }
+}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.java b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.java
deleted file mode 100644
index c183a04cb2f9..000000000000
--- a/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * 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.dagger;
-
-import android.app.DreamManager;
-import android.content.ComponentName;
-import android.content.Context;
-
-import androidx.annotation.Nullable;
-
-import com.android.dream.lowlight.R;
-
-import javax.inject.Named;
-
-import dagger.Module;
-import dagger.Provides;
-
-/**
- * Dagger module for low light dream.
- *
- * @hide
- */
-@Module
-public interface LowLightDreamModule {
- String LOW_LIGHT_DREAM_COMPONENT = "low_light_dream_component";
-
- /**
- * Provides dream manager.
- */
- @Provides
- static DreamManager providesDreamManager(Context context) {
- return context.getSystemService(DreamManager.class);
- }
-
- /**
- * Provides the component name of the low light dream, or null if not configured.
- */
- @Provides
- @Named(LOW_LIGHT_DREAM_COMPONENT)
- @Nullable
- static ComponentName providesLowLightDreamComponent(Context context) {
- final String lowLightDreamComponent = context.getResources().getString(
- R.string.config_lowLightDreamComponent);
- return lowLightDreamComponent.isEmpty() ? null
- : ComponentName.unflattenFromString(lowLightDreamComponent);
- }
-}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.kt
new file mode 100644
index 000000000000..dd274bd9d509
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/LowLightDreamModule.kt
@@ -0,0 +1,82 @@
+/*
+ * 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.dagger
+
+import android.app.DreamManager
+import android.content.ComponentName
+import android.content.Context
+import com.android.dream.lowlight.R
+import com.android.dream.lowlight.dagger.qualifiers.Application
+import com.android.dream.lowlight.dagger.qualifiers.Main
+import dagger.Module
+import dagger.Provides
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import javax.inject.Named
+
+/**
+ * Dagger module for low light dream.
+ *
+ * @hide
+ */
+@Module
+object LowLightDreamModule {
+ /**
+ * Provides dream manager.
+ */
+ @Provides
+ fun providesDreamManager(context: Context): DreamManager {
+ return requireNotNull(context.getSystemService(DreamManager::class.java))
+ }
+
+ /**
+ * Provides the component name of the low light dream, or null if not configured.
+ */
+ @Provides
+ @Named(LOW_LIGHT_DREAM_COMPONENT)
+ fun providesLowLightDreamComponent(context: Context): ComponentName? {
+ val lowLightDreamComponent = context.resources.getString(
+ R.string.config_lowLightDreamComponent
+ )
+ return if (lowLightDreamComponent.isEmpty()) {
+ null
+ } else {
+ ComponentName.unflattenFromString(lowLightDreamComponent)
+ }
+ }
+
+ @Provides
+ @Named(LOW_LIGHT_TRANSITION_TIMEOUT_MS)
+ fun providesLowLightTransitionTimeout(context: Context): Long {
+ return context.resources.getInteger(R.integer.config_lowLightTransitionTimeoutMs).toLong()
+ }
+
+ @Provides
+ @Main
+ fun providesMainDispatcher(): CoroutineDispatcher {
+ return Dispatchers.Main.immediate
+ }
+
+ @Provides
+ @Application
+ fun providesApplicationScope(@Main dispatcher: CoroutineDispatcher): CoroutineScope {
+ return CoroutineScope(dispatcher)
+ }
+
+ const val LOW_LIGHT_DREAM_COMPONENT = "low_light_dream_component"
+ const val LOW_LIGHT_TRANSITION_TIMEOUT_MS = "low_light_transition_timeout"
+}
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Application.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Application.kt
new file mode 100644
index 000000000000..541fe4017e6e
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Application.kt
@@ -0,0 +1,9 @@
+package com.android.dream.lowlight.dagger.qualifiers
+
+import android.content.Context
+import javax.inject.Qualifier
+
+/**
+ * Used to qualify a context as [Context.getApplicationContext]
+ */
+@Qualifier @MustBeDocumented @Retention(AnnotationRetention.RUNTIME) annotation class Application
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Main.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Main.kt
new file mode 100644
index 000000000000..ccd0710bdc60
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/dagger/qualifiers/Main.kt
@@ -0,0 +1,8 @@
+package com.android.dream.lowlight.dagger.qualifiers
+
+import javax.inject.Qualifier
+
+/**
+ * Used to qualify code running on the main thread.
+ */
+@Qualifier @MustBeDocumented @Retention(AnnotationRetention.RUNTIME) annotation class Main
diff --git a/libs/dream/lowlight/src/com/android/dream/lowlight/util/KotlinUtils.kt b/libs/dream/lowlight/src/com/android/dream/lowlight/util/KotlinUtils.kt
new file mode 100644
index 000000000000..ff675ccfaffb
--- /dev/null
+++ b/libs/dream/lowlight/src/com/android/dream/lowlight/util/KotlinUtils.kt
@@ -0,0 +1,29 @@
+/*
+ * 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.util
+
+import kotlinx.coroutines.CancellableContinuation
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.withTimeout
+import kotlin.time.Duration
+
+suspend inline fun <T> suspendCoroutineWithTimeout(
+ timeout: Duration,
+ crossinline block: (CancellableContinuation<T>) -> Unit
+) = withTimeout(timeout) {
+ suspendCancellableCoroutine(block = block)
+}
diff --git a/libs/dream/lowlight/tests/Android.bp b/libs/dream/lowlight/tests/Android.bp
index bd6f05eabac5..2d79090cd7d4 100644
--- a/libs/dream/lowlight/tests/Android.bp
+++ b/libs/dream/lowlight/tests/Android.bp
@@ -20,6 +20,7 @@ android_test {
name: "LowLightDreamTests",
srcs: [
"**/*.java",
+ "**/*.kt",
],
static_libs: [
"LowLightDreamLib",
@@ -28,6 +29,7 @@ android_test {
"androidx.test.ext.junit",
"frameworks-base-testutils",
"junit",
+ "kotlinx_coroutines_test",
"mockito-target-extended-minus-junit4",
"platform-test-annotations",
"testables",
diff --git a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.java b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.java
deleted file mode 100644
index 4b95d8c84bac..000000000000
--- a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.java
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * 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.LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT;
-import static com.android.dream.lowlight.LowLightDreamManager.AMBIENT_LIGHT_MODE_REGULAR;
-import static com.android.dream.lowlight.LowLightDreamManager.AMBIENT_LIGHT_MODE_UNKNOWN;
-
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyBoolean;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.clearInvocations;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-
-import android.app.DreamManager;
-import android.content.ComponentName;
-import android.testing.AndroidTestingRunner;
-
-import androidx.test.filters.SmallTest;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-
-@SmallTest
-@RunWith(AndroidTestingRunner.class)
-public class LowLightDreamManagerTest {
- @Mock
- private DreamManager mDreamManager;
-
- @Mock
- private LowLightTransitionCoordinator mTransitionCoordinator;
-
- @Mock
- private ComponentName mDreamComponent;
-
- LowLightDreamManager mLowLightDreamManager;
-
- @Before
- public void setUp() {
- MockitoAnnotations.initMocks(this);
-
- // Automatically run any provided Runnable to mTransitionCoordinator to simplify testing.
- doAnswer(invocation -> {
- ((Runnable) invocation.getArgument(1)).run();
- return null;
- }).when(mTransitionCoordinator).notifyBeforeLowLightTransition(anyBoolean(),
- any(Runnable.class));
-
- mLowLightDreamManager = new LowLightDreamManager(mDreamManager, mTransitionCoordinator,
- mDreamComponent);
- }
-
- @Test
- public void setAmbientLightMode_lowLight_setSystemDream() {
- mLowLightDreamManager.setAmbientLightMode(AMBIENT_LIGHT_MODE_LOW_LIGHT);
-
- verify(mTransitionCoordinator).notifyBeforeLowLightTransition(eq(true), any());
- verify(mDreamManager).setSystemDreamComponent(mDreamComponent);
- }
-
- @Test
- public void setAmbientLightMode_regularLight_clearSystemDream() {
- mLowLightDreamManager.setAmbientLightMode(AMBIENT_LIGHT_MODE_REGULAR);
-
- verify(mTransitionCoordinator).notifyBeforeLowLightTransition(eq(false), any());
- verify(mDreamManager).setSystemDreamComponent(null);
- }
-
- @Test
- public void setAmbientLightMode_defaultUnknownMode_clearSystemDream() {
- // Set to low light first.
- mLowLightDreamManager.setAmbientLightMode(AMBIENT_LIGHT_MODE_LOW_LIGHT);
- clearInvocations(mDreamManager);
-
- // Return to default unknown mode.
- mLowLightDreamManager.setAmbientLightMode(AMBIENT_LIGHT_MODE_UNKNOWN);
-
- verify(mDreamManager).setSystemDreamComponent(null);
- }
-
- @Test
- public void setAmbientLightMode_dreamComponentNotSet_doNothing() {
- final LowLightDreamManager lowLightDreamManager = new LowLightDreamManager(mDreamManager,
- mTransitionCoordinator, null /*dream component*/);
-
- lowLightDreamManager.setAmbientLightMode(AMBIENT_LIGHT_MODE_LOW_LIGHT);
-
- verify(mDreamManager, never()).setSystemDreamComponent(any());
- }
-}
diff --git a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.kt b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.kt
new file mode 100644
index 000000000000..2a886bc31788
--- /dev/null
+++ b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightDreamManagerTest.kt
@@ -0,0 +1,169 @@
+/*
+ * 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.animation.Animator
+import android.app.DreamManager
+import android.content.ComponentName
+import android.testing.AndroidTestingRunner
+import androidx.test.filters.SmallTest
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.advanceTimeBy
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mock
+import org.mockito.Mockito.clearInvocations
+import org.mockito.Mockito.never
+import org.mockito.Mockito.times
+import org.mockito.Mockito.verify
+import org.mockito.MockitoAnnotations
+import src.com.android.dream.lowlight.utils.any
+import src.com.android.dream.lowlight.utils.withArgCaptor
+
+@OptIn(ExperimentalCoroutinesApi::class)
+@SmallTest
+@RunWith(AndroidTestingRunner::class)
+class LowLightDreamManagerTest {
+ @Mock
+ private lateinit var mDreamManager: DreamManager
+ @Mock
+ private lateinit var mEnterAnimator: Animator
+ @Mock
+ private lateinit var mExitAnimator: Animator
+
+ private lateinit var mTransitionCoordinator: LowLightTransitionCoordinator
+ private lateinit var mLowLightDreamManager: LowLightDreamManager
+ private lateinit var testScope: TestScope
+
+ @Before
+ fun setUp() {
+ MockitoAnnotations.initMocks(this)
+ testScope = TestScope(StandardTestDispatcher())
+
+ mTransitionCoordinator = LowLightTransitionCoordinator()
+ mTransitionCoordinator.setLowLightEnterListener(
+ object : LowLightTransitionCoordinator.LowLightEnterListener {
+ override fun onBeforeEnterLowLight() = mEnterAnimator
+ })
+ mTransitionCoordinator.setLowLightExitListener(
+ object : LowLightTransitionCoordinator.LowLightExitListener {
+ override fun onBeforeExitLowLight() = mExitAnimator
+ })
+
+ mLowLightDreamManager = LowLightDreamManager(
+ coroutineScope = testScope,
+ dreamManager = mDreamManager,
+ lowLightTransitionCoordinator = mTransitionCoordinator,
+ lowLightDreamComponent = DREAM_COMPONENT,
+ lowLightTransitionTimeoutMs = LOW_LIGHT_TIMEOUT_MS
+ )
+ }
+
+ @Test
+ fun setAmbientLightMode_lowLight_setSystemDream() = testScope.runTest {
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT)
+ runCurrent()
+ verify(mDreamManager, never()).setSystemDreamComponent(DREAM_COMPONENT)
+ completeEnterAnimations()
+ runCurrent()
+ verify(mDreamManager).setSystemDreamComponent(DREAM_COMPONENT)
+ }
+
+ @Test
+ fun setAmbientLightMode_regularLight_clearSystemDream() = testScope.runTest {
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_REGULAR)
+ runCurrent()
+ verify(mDreamManager, never()).setSystemDreamComponent(null)
+ completeExitAnimations()
+ runCurrent()
+ verify(mDreamManager).setSystemDreamComponent(null)
+ }
+
+ @Test
+ fun setAmbientLightMode_defaultUnknownMode_clearSystemDream() = testScope.runTest {
+ // Set to low light first.
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT)
+ runCurrent()
+ completeEnterAnimations()
+ runCurrent()
+ verify(mDreamManager).setSystemDreamComponent(DREAM_COMPONENT)
+ clearInvocations(mDreamManager)
+
+ // Return to default unknown mode.
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_UNKNOWN)
+ runCurrent()
+ completeExitAnimations()
+ runCurrent()
+ verify(mDreamManager).setSystemDreamComponent(null)
+ }
+
+ @Test
+ fun setAmbientLightMode_dreamComponentNotSet_doNothing() = testScope.runTest {
+ val lowLightDreamManager = LowLightDreamManager(
+ coroutineScope = testScope,
+ dreamManager = mDreamManager,
+ lowLightTransitionCoordinator = mTransitionCoordinator,
+ lowLightDreamComponent = null,
+ lowLightTransitionTimeoutMs = LOW_LIGHT_TIMEOUT_MS
+ )
+ lowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT)
+ runCurrent()
+ verify(mEnterAnimator, never()).addListener(any())
+ verify(mDreamManager, never()).setSystemDreamComponent(any())
+ }
+
+ @Test
+ fun setAmbientLightMode_multipleTimesBeforeAnimationEnds_cancelsPrevious() = testScope.runTest {
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT)
+ runCurrent()
+ // If we reset the light mode back to regular before the previous animation finishes, it
+ // should be ignored.
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_REGULAR)
+ runCurrent()
+ completeEnterAnimations()
+ completeExitAnimations()
+ runCurrent()
+ verify(mDreamManager, times(1)).setSystemDreamComponent(null)
+ }
+
+ @Test
+ fun setAmbientLightMode_animatorNeverFinishes_timesOut() = testScope.runTest {
+ mLowLightDreamManager.setAmbientLightMode(LowLightDreamManager.AMBIENT_LIGHT_MODE_LOW_LIGHT)
+ advanceTimeBy(delayTimeMillis = LOW_LIGHT_TIMEOUT_MS + 1)
+ // Animation never finishes, but we should still set the system dream
+ verify(mDreamManager).setSystemDreamComponent(DREAM_COMPONENT)
+ }
+
+ private fun completeEnterAnimations() {
+ val listener = withArgCaptor { verify(mEnterAnimator).addListener(capture()) }
+ listener.onAnimationEnd(mEnterAnimator)
+ }
+
+ private fun completeExitAnimations() {
+ val listener = withArgCaptor { verify(mExitAnimator).addListener(capture()) }
+ listener.onAnimationEnd(mExitAnimator)
+ }
+
+ companion object {
+ private val DREAM_COMPONENT = ComponentName("test_package", "test_dream")
+ private const val LOW_LIGHT_TIMEOUT_MS: Long = 1000
+ }
+} \ No newline at end of file
diff --git a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.java b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.java
deleted file mode 100644
index 81e1e33d6220..000000000000
--- a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.java
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * 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 static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.verifyZeroInteractions;
-import static org.mockito.Mockito.when;
-
-import android.animation.Animator;
-import android.testing.AndroidTestingRunner;
-
-import androidx.test.filters.SmallTest;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.ArgumentCaptor;
-import org.mockito.Captor;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-
-@SmallTest
-@RunWith(AndroidTestingRunner.class)
-public class LowLightTransitionCoordinatorTest {
- @Mock
- private LowLightTransitionCoordinator.LowLightEnterListener mEnterListener;
-
- @Mock
- private LowLightTransitionCoordinator.LowLightExitListener mExitListener;
-
- @Mock
- private Animator mAnimator;
-
- @Captor
- private ArgumentCaptor<Animator.AnimatorListener> mAnimatorListenerCaptor;
-
- @Mock
- private Runnable mRunnable;
-
- @Before
- public void setUp() {
- MockitoAnnotations.initMocks(this);
- }
-
- @Test
- public void onEnterCalledOnListeners() {
- LowLightTransitionCoordinator coordinator = new LowLightTransitionCoordinator();
-
- coordinator.setLowLightEnterListener(mEnterListener);
-
- coordinator.notifyBeforeLowLightTransition(true, mRunnable);
-
- verify(mEnterListener).onBeforeEnterLowLight();
- verify(mRunnable).run();
- }
-
- @Test
- public void onExitCalledOnListeners() {
- LowLightTransitionCoordinator coordinator = new LowLightTransitionCoordinator();
-
- coordinator.setLowLightExitListener(mExitListener);
-
- coordinator.notifyBeforeLowLightTransition(false, mRunnable);
-
- verify(mExitListener).onBeforeExitLowLight();
- verify(mRunnable).run();
- }
-
- @Test
- public void listenerNotCalledAfterRemoval() {
- LowLightTransitionCoordinator coordinator = new LowLightTransitionCoordinator();
-
- coordinator.setLowLightEnterListener(mEnterListener);
- coordinator.setLowLightEnterListener(null);
-
- coordinator.notifyBeforeLowLightTransition(true, mRunnable);
-
- verifyZeroInteractions(mEnterListener);
- verify(mRunnable).run();
- }
-
- @Test
- public void runnableCalledAfterAnimationEnds() {
- when(mEnterListener.onBeforeEnterLowLight()).thenReturn(mAnimator);
-
- LowLightTransitionCoordinator coordinator = new LowLightTransitionCoordinator();
- coordinator.setLowLightEnterListener(mEnterListener);
-
- coordinator.notifyBeforeLowLightTransition(true, mRunnable);
-
- // Animator listener is added and the runnable is not run yet.
- verify(mAnimator).addListener(mAnimatorListenerCaptor.capture());
- verifyZeroInteractions(mRunnable);
-
- // Runnable is run once the animation ends.
- mAnimatorListenerCaptor.getValue().onAnimationEnd(null);
- verify(mRunnable).run();
- }
-}
diff --git a/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.kt b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.kt
new file mode 100644
index 000000000000..4c526a6ac69d
--- /dev/null
+++ b/libs/dream/lowlight/tests/src/com.android.dream.lowlight/LowLightTransitionCoordinatorTest.kt
@@ -0,0 +1,184 @@
+/*
+ * 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.animation.Animator
+import android.testing.AndroidTestingRunner
+import androidx.test.filters.SmallTest
+import com.android.dream.lowlight.LowLightTransitionCoordinator.LowLightEnterListener
+import com.android.dream.lowlight.LowLightTransitionCoordinator.LowLightExitListener
+import com.google.common.truth.Truth.assertThat
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.StandardTestDispatcher
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.advanceTimeBy
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentCaptor
+import org.mockito.Captor
+import org.mockito.Mock
+import org.mockito.Mockito.never
+import org.mockito.Mockito.verify
+import org.mockito.MockitoAnnotations
+import src.com.android.dream.lowlight.utils.whenever
+import kotlin.time.DurationUnit
+import kotlin.time.toDuration
+
+@SmallTest
+@OptIn(ExperimentalCoroutinesApi::class)
+@RunWith(AndroidTestingRunner::class)
+class LowLightTransitionCoordinatorTest {
+ @Mock
+ private lateinit var mEnterListener: LowLightEnterListener
+
+ @Mock
+ private lateinit var mExitListener: LowLightExitListener
+
+ @Mock
+ private lateinit var mAnimator: Animator
+
+ @Captor
+ private lateinit var mAnimatorListenerCaptor: ArgumentCaptor<Animator.AnimatorListener>
+
+ private lateinit var testScope: TestScope
+
+ @Before
+ fun setUp() {
+ MockitoAnnotations.initMocks(this)
+ testScope = TestScope(StandardTestDispatcher())
+ }
+
+ @Test
+ fun onEnterCalledOnListeners() = testScope.runTest {
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ verify(mEnterListener).onBeforeEnterLowLight()
+ assertThat(job.isCompleted).isTrue()
+ }
+
+ @Test
+ fun onExitCalledOnListeners() = testScope.runTest {
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightExitListener(mExitListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = false)
+ }
+ runCurrent()
+ verify(mExitListener).onBeforeExitLowLight()
+ assertThat(job.isCompleted).isTrue()
+ }
+
+ @Test
+ fun listenerNotCalledAfterRemoval() = testScope.runTest {
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ coordinator.setLowLightEnterListener(null)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ verify(mEnterListener, never()).onBeforeEnterLowLight()
+ assertThat(job.isCompleted).isTrue()
+ }
+
+ @Test
+ fun waitsForAnimationToEnd() = testScope.runTest {
+ whenever(mEnterListener.onBeforeEnterLowLight()).thenReturn(mAnimator)
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ // Animator listener is added and the runnable is not run yet.
+ verify(mAnimator).addListener(mAnimatorListenerCaptor.capture())
+ assertThat(job.isCompleted).isFalse()
+
+ // Runnable is run once the animation ends.
+ mAnimatorListenerCaptor.value.onAnimationEnd(mAnimator)
+ runCurrent()
+ assertThat(job.isCompleted).isTrue()
+ assertThat(job.isCancelled).isFalse()
+ }
+
+ @Test
+ fun waitsForTimeoutIfAnimationNeverEnds() = testScope.runTest {
+ whenever(mEnterListener.onBeforeEnterLowLight()).thenReturn(mAnimator)
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ assertThat(job.isCancelled).isFalse()
+ advanceTimeBy(delayTimeMillis = TIMEOUT.inWholeMilliseconds + 1)
+ // If animator doesn't complete within the timeout, we should cancel ourselves.
+ assertThat(job.isCancelled).isTrue()
+ }
+
+ @Test
+ fun shouldCancelIfAnimationIsCancelled() = testScope.runTest {
+ whenever(mEnterListener.onBeforeEnterLowLight()).thenReturn(mAnimator)
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ // Animator listener is added and the runnable is not run yet.
+ verify(mAnimator).addListener(mAnimatorListenerCaptor.capture())
+ assertThat(job.isCompleted).isFalse()
+ assertThat(job.isCancelled).isFalse()
+
+ // Runnable is run once the animation ends.
+ mAnimatorListenerCaptor.value.onAnimationCancel(mAnimator)
+ runCurrent()
+ assertThat(job.isCompleted).isTrue()
+ assertThat(job.isCancelled).isTrue()
+ }
+
+ @Test
+ fun shouldCancelAnimatorWhenJobCancelled() = testScope.runTest {
+ whenever(mEnterListener.onBeforeEnterLowLight()).thenReturn(mAnimator)
+ val coordinator = LowLightTransitionCoordinator()
+ coordinator.setLowLightEnterListener(mEnterListener)
+ val job = launch {
+ coordinator.waitForLowLightTransitionAnimation(timeout = TIMEOUT, entering = true)
+ }
+ runCurrent()
+ // Animator listener is added and the runnable is not run yet.
+ verify(mAnimator).addListener(mAnimatorListenerCaptor.capture())
+ verify(mAnimator, never()).cancel()
+ assertThat(job.isCompleted).isFalse()
+
+ job.cancel()
+ // We should have removed the listener and cancelled the animator
+ verify(mAnimator).removeListener(mAnimatorListenerCaptor.value)
+ verify(mAnimator).cancel()
+ }
+
+ companion object {
+ private val TIMEOUT = 1.toDuration(DurationUnit.SECONDS)
+ }
+}
diff --git a/libs/dream/lowlight/tests/src/com/android/dream/lowlight/utils/KotlinMockitoHelpers.kt b/libs/dream/lowlight/tests/src/com/android/dream/lowlight/utils/KotlinMockitoHelpers.kt
new file mode 100644
index 000000000000..e5ec26ca4b41
--- /dev/null
+++ b/libs/dream/lowlight/tests/src/com/android/dream/lowlight/utils/KotlinMockitoHelpers.kt
@@ -0,0 +1,125 @@
+package src.com.android.dream.lowlight.utils
+
+import org.mockito.ArgumentCaptor
+import org.mockito.ArgumentMatcher
+import org.mockito.Mockito
+import org.mockito.Mockito.`when`
+import org.mockito.stubbing.OngoingStubbing
+import org.mockito.stubbing.Stubber
+
+/**
+ * Returns Mockito.eq() as nullable type to avoid java.lang.IllegalStateException when
+ * null is returned.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+fun <T> eq(obj: T): T = Mockito.eq<T>(obj)
+
+/**
+ * Returns Mockito.any() as nullable type to avoid java.lang.IllegalStateException when
+ * null is returned.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+fun <T> any(type: Class<T>): T = Mockito.any<T>(type)
+inline fun <reified T> any(): T = any(T::class.java)
+
+/**
+ * Returns Mockito.argThat() as nullable type to avoid java.lang.IllegalStateException when
+ * null is returned.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+fun <T> argThat(matcher: ArgumentMatcher<T>): T = Mockito.argThat(matcher)
+
+/**
+ * Kotlin type-inferred version of Mockito.nullable()
+ */
+inline fun <reified T> nullable(): T? = Mockito.nullable(T::class.java)
+
+/**
+ * Returns ArgumentCaptor.capture() as nullable type to avoid java.lang.IllegalStateException
+ * when null is returned.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+fun <T> capture(argumentCaptor: ArgumentCaptor<T>): T = argumentCaptor.capture()
+
+/**
+ * Helper function for creating an argumentCaptor in kotlin.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+inline fun <reified T : Any> argumentCaptor(): ArgumentCaptor<T> =
+ ArgumentCaptor.forClass(T::class.java)
+
+/**
+ * Helper function for creating new mocks, without the need to pass in a [Class] instance.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ *
+ * @param apply builder function to simplify stub configuration by improving type inference.
+ */
+inline fun <reified T : Any> mock(apply: T.() -> Unit = {}): T = Mockito.mock(T::class.java)
+ .apply(apply)
+
+/**
+ * Helper function for stubbing methods without the need to use backticks.
+ *
+ * @see Mockito.when
+ */
+fun <T> whenever(methodCall: T): OngoingStubbing<T> = `when`(methodCall)
+fun <T> Stubber.whenever(mock: T): T = `when`(mock)
+
+/**
+ * A kotlin implemented wrapper of [ArgumentCaptor] which prevents the following exception when
+ * kotlin tests are mocking kotlin objects and the methods take non-null parameters:
+ *
+ * java.lang.NullPointerException: capture() must not be null
+ */
+class KotlinArgumentCaptor<T> constructor(clazz: Class<T>) {
+ private val wrapped: ArgumentCaptor<T> = ArgumentCaptor.forClass(clazz)
+ fun capture(): T = wrapped.capture()
+ val value: T
+ get() = wrapped.value
+ val allValues: List<T>
+ get() = wrapped.allValues
+}
+
+/**
+ * Helper function for creating an argumentCaptor in kotlin.
+ *
+ * Generic T is nullable because implicitly bounded by Any?.
+ */
+inline fun <reified T : Any> kotlinArgumentCaptor(): KotlinArgumentCaptor<T> =
+ KotlinArgumentCaptor(T::class.java)
+
+/**
+ * Helper function for creating and using a single-use ArgumentCaptor in kotlin.
+ *
+ * val captor = argumentCaptor<Foo>()
+ * verify(...).someMethod(captor.capture())
+ * val captured = captor.value
+ *
+ * becomes:
+ *
+ * val captured = withArgCaptor<Foo> { verify(...).someMethod(capture()) }
+ *
+ * NOTE: this uses the KotlinArgumentCaptor to avoid the NullPointerException.
+ */
+inline fun <reified T : Any> withArgCaptor(block: KotlinArgumentCaptor<T>.() -> Unit): T =
+ kotlinArgumentCaptor<T>().apply { block() }.value
+
+/**
+ * Variant of [withArgCaptor] for capturing multiple arguments.
+ *
+ * val captor = argumentCaptor<Foo>()
+ * verify(...).someMethod(captor.capture())
+ * val captured: List<Foo> = captor.allValues
+ *
+ * becomes:
+ *
+ * val capturedList = captureMany<Foo> { verify(...).someMethod(capture()) }
+ */
+inline fun <reified T : Any> captureMany(block: KotlinArgumentCaptor<T>.() -> Unit): List<T> =
+ kotlinArgumentCaptor<T>().apply{ block() }.allValues