Merge "Handle onActivityReparentToTask for activity in other process" into... (ff67115e) · Commits · e / os / android_frameworks_base

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitController.java

+216 −158

Original line number	Diff line number	Diff line
		@@ -234,13 +234,36 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		public void onActivityReparentToTask(int taskId, @NonNull Intent activityIntent,
		@NonNull IBinder activityToken) {
		// If the activity belongs to the current app process, we treat it as a new activity launch.
		final Activity activity = ActivityThread.currentActivityThread().getActivity(activityToken);
		final Activity activity = getActivity(activityToken);
		if (activity != null) {
		onActivityCreated(activity);
		updateCallbackIfNecessary();
		return;
		}
		// TODO: handle for activity in other process.

		final TaskContainer taskContainer = getTaskContainer(taskId);
		if (taskContainer == null \|\| taskContainer.isInPictureInPicture()) {
		// We don't embed activity when it is in PIP.
		return;
		}

		// If the activity belongs to a different app process, we treat it as starting new intent,
		// since both actions might result in a new activity that should appear in an organized
		// TaskFragment.
		final WindowContainerTransaction wct = new WindowContainerTransaction();
		TaskFragmentContainer targetContainer = resolveStartActivityIntent(wct, taskId,
		activityIntent, null /* launchingActivity */);
		if (targetContainer == null) {
		// When there is no split rule matched, try to place it in the top container like a
		// normal launch.
		targetContainer = taskContainer.getTopTaskFragmentContainer();
		}
		if (targetContainer == null) {
		return;
		}
		wct.reparentActivityToTaskFragment(targetContainer.getTaskFragmentToken(), activityToken);
		mPresenter.applyTransaction(wct);
		// Because the activity does not belong to the organizer process, we wait until
		// onTaskFragmentAppeared to trigger updateCallbackIfNecessary().
		}

		/** Called on receiving {@link #onTaskFragmentVanished(TaskFragmentInfo)} for cleanup. */
		@@ -327,16 +350,14 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		*/
		// TODO(b/190433398): Break down into smaller functions.
		void handleActivityCreated(@NonNull Activity launchedActivity) {
		if (isInPictureInPicture(launchedActivity)) {
		// We don't embed activity when it is in PIP.
		if (isInPictureInPicture(launchedActivity) \|\| launchedActivity.isFinishing()) {
		// We don't embed activity when it is in PIP, or finishing.
		return;
		}
		final List<EmbeddingRule> splitRules = getSplitRules();
		final TaskFragmentContainer currentContainer = getContainerWithActivity(
		launchedActivity.getActivityToken());
		final TaskFragmentContainer currentContainer = getContainerWithActivity(launchedActivity);

		// Check if the activity is configured to always be expanded.
		if (shouldExpand(launchedActivity, null, splitRules)) {
		if (shouldExpand(launchedActivity, null /* intent */)) {
		if (shouldContainerBeExpanded(currentContainer)) {
		// Make sure that the existing container is expanded
		mPresenter.expandTaskFragment(currentContainer.getTaskFragmentToken());
		@@ -375,7 +396,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		IBinder belowToken = ActivityClient.getInstance().getActivityTokenBelow(
		launchedActivity.getActivityToken());
		if (belowToken != null) {
		activityBelow = ActivityThread.currentActivityThread().getActivity(belowToken);
		activityBelow = getActivity(belowToken);
		}
		}
		if (activityBelow == null) {
		@@ -384,7 +405,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen

		// Check if the split is already set.
		final TaskFragmentContainer activityBelowContainer = getContainerWithActivity(
		activityBelow.getActivityToken());
		activityBelow);
		if (currentContainer != null && activityBelowContainer != null) {
		final SplitContainer existingSplit = getActiveSplitForContainers(currentContainer,
		activityBelowContainer);
		@@ -394,8 +415,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		}
		}

		final SplitPairRule splitPairRule = getSplitRule(activityBelow, launchedActivity,
		splitRules);
		final SplitPairRule splitPairRule = getSplitRule(activityBelow, launchedActivity);
		if (splitPairRule == null) {
		return;
		}
		@@ -409,8 +429,7 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		// We don't embed activity when it is in PIP.
		return;
		}
		final TaskFragmentContainer currentContainer = getContainerWithActivity(
		activity.getActivityToken());
		final TaskFragmentContainer currentContainer = getContainerWithActivity(activity);

		if (currentContainer != null) {
		// Changes to activities in controllers are handled in
		@@ -442,12 +461,144 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		mPresenter.cleanupContainer(container, false /* shouldFinishDependent */);
		}

		/**
		* When we are trying to handle a new activity Intent, returns the {@link TaskFragmentContainer}
		* that we should reparent the new activity to if there is any embedding rule matched.
		*
		* @param wct {@link WindowContainerTransaction} including all the window change
		* requests. The caller is responsible to call
		* {@link android.window.TaskFragmentOrganizer#applyTransaction}.
		* @param taskId The Task to start the activity in.
		* @param intent The {@link Intent} for starting the new launched activity.
		* @param launchingActivity The {@link Activity} that starts the new activity. We will
		* prioritize to split the new activity with it if it is not
		* {@code null}.
		* @return the {@link TaskFragmentContainer} to start the new activity in. {@code null} if there
		* is no embedding rule matched.
		*/
		@VisibleForTesting
		@Nullable
		TaskFragmentContainer resolveStartActivityIntent(@NonNull WindowContainerTransaction wct,
		int taskId, @NonNull Intent intent, @Nullable Activity launchingActivity) {
		/*
		* We will check the following to see if there is any embedding rule matched:
		* 1. Whether the new activity intent should always expand.
		* 2. Whether the launching activity (if set) should be split with the new activity intent.
		* 3. Whether the top activity (if any) should be split with the new activity intent.
		* 4. Whether the top activity (if any) in other split should be split with the new
		* activity intent.
		*/

		// 1. Whether the new activity intent should always expand.
		if (shouldExpand(null /* activity */, intent)) {
		return createEmptyExpandedContainer(wct, taskId, launchingActivity);
		}

		// 2. Whether the launching activity (if set) should be split with the new activity intent.
		if (launchingActivity != null) {
		final TaskFragmentContainer container = getSecondaryContainerForSplitIfAny(wct,
		launchingActivity, intent, true /* respectClearTop */);
		if (container != null) {
		return container;
		}
		}

		// 3. Whether the top activity (if any) should be split with the new activity intent.
		final TaskContainer taskContainer = getTaskContainer(taskId);
		if (taskContainer == null \|\| taskContainer.getTopTaskFragmentContainer() == null) {
		// There is no other activity in the Task to check split with.
		return null;
		}
		final TaskFragmentContainer topContainer = taskContainer.getTopTaskFragmentContainer();
		final Activity topActivity = topContainer.getTopNonFinishingActivity();
		if (topActivity != null && topActivity != launchingActivity) {
		final TaskFragmentContainer container = getSecondaryContainerForSplitIfAny(wct,
		topActivity, intent, false /* respectClearTop */);
		if (container != null) {
		return container;
		}
		}

		// 4. Whether the top activity (if any) in other split should be split with the new
		// activity intent.
		final SplitContainer topSplit = getActiveSplitForContainer(topContainer);
		if (topSplit == null) {
		return null;
		}
		final TaskFragmentContainer otherTopContainer =
		topSplit.getPrimaryContainer() == topContainer
		? topSplit.getSecondaryContainer()
		: topSplit.getPrimaryContainer();
		final Activity otherTopActivity = otherTopContainer.getTopNonFinishingActivity();
		if (otherTopActivity != null && otherTopActivity != launchingActivity) {
		return getSecondaryContainerForSplitIfAny(wct, otherTopActivity, intent,
		false /* respectClearTop */);
		}
		return null;
		}

		/**
		* Returns an empty expanded {@link TaskFragmentContainer} that we can launch an activity into.
		*/
		@Nullable
		private TaskFragmentContainer createEmptyExpandedContainer(
		@NonNull WindowContainerTransaction wct, int taskId,
		@Nullable Activity launchingActivity) {
		// We need an activity in the organizer process in the same Task to use as the owner
		// activity, as well as to get the Task window info.
		final Activity activityInTask;
		if (launchingActivity != null) {
		activityInTask = launchingActivity;
		} else {
		final TaskContainer taskContainer = getTaskContainer(taskId);
		activityInTask = taskContainer != null
		? taskContainer.getTopNonFinishingActivity()
		: null;
		}
		if (activityInTask == null) {
		// Can't find any activity in the Task that we can use as the owner activity.
		return null;
		}
		final TaskFragmentContainer expandedContainer = newContainer(null /* activity */,
		activityInTask, taskId);
		mPresenter.createTaskFragment(wct, expandedContainer.getTaskFragmentToken(),
		activityInTask.getActivityToken(), new Rect(), WINDOWING_MODE_UNDEFINED);
		return expandedContainer;
		}

		/**
		* Returns a container for the new activity intent to launch into as splitting with the primary
		* activity.
		*/
		@Nullable
		private TaskFragmentContainer getSecondaryContainerForSplitIfAny(
		@NonNull WindowContainerTransaction wct, @NonNull Activity primaryActivity,
		@NonNull Intent intent, boolean respectClearTop) {
		final SplitPairRule splitRule = getSplitRule(primaryActivity, intent);
		if (splitRule == null) {
		return null;
		}
		final TaskFragmentContainer existingContainer = getContainerWithActivity(primaryActivity);
		final SplitContainer splitContainer = getActiveSplitForContainer(existingContainer);
		if (splitContainer != null && existingContainer == splitContainer.getPrimaryContainer()
		&& (canReuseContainer(splitRule, splitContainer.getSplitRule())
		// TODO(b/231845476) we should always respect clearTop.
		\|\| !respectClearTop)) {
		// Can launch in the existing secondary container if the rules share the same
		// presentation.
		return splitContainer.getSecondaryContainer();
		}
		// Create a new TaskFragment to split with the primary activity for the new activity.
		return mPresenter.createNewSplitWithEmptySideContainer(wct, primaryActivity, splitRule);
		}

		/**
		* Returns a container that this activity is registered with. An activity can only belong to one
		* container, or no container at all.
		*/
		@Nullable
		TaskFragmentContainer getContainerWithActivity(@NonNull IBinder activityToken) {
		TaskFragmentContainer getContainerWithActivity(@NonNull Activity activity) {
		final IBinder activityToken = activity.getActivityToken();
		for (int i = mTaskContainers.size() - 1; i >= 0; i--) {
		final List<TaskFragmentContainer> containers = mTaskContainers.valueAt(i).mContainers;
		for (TaskFragmentContainer container : containers) {
		@@ -668,7 +819,10 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		* Returns the top active split container that has the provided container, if available.
		*/
		@Nullable
		private SplitContainer getActiveSplitForContainer(@NonNull TaskFragmentContainer container) {
		private SplitContainer getActiveSplitForContainer(@Nullable TaskFragmentContainer container) {
		if (container == null) {
		return null;
		}
		final List<SplitContainer> splitContainers = container.getTaskContainer().mSplitContainers;
		if (splitContainers.isEmpty()) {
		return null;
		@@ -687,8 +841,9 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		* Returns the active split that has the provided containers as primary and secondary or as
		* secondary and primary, if available.
		*/
		@VisibleForTesting
		@Nullable
		private SplitContainer getActiveSplitForContainers(
		SplitContainer getActiveSplitForContainers(
		@NonNull TaskFragmentContainer firstContainer,
		@NonNull TaskFragmentContainer secondContainer) {
		final List<SplitContainer> splitContainers = firstContainer.getTaskContainer()
		@@ -718,15 +873,13 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		}

		boolean launchPlaceholderIfNecessary(@NonNull Activity activity) {
		final TaskFragmentContainer container = getContainerWithActivity(
		activity.getActivityToken());
		final TaskFragmentContainer container = getContainerWithActivity(activity);
		// Don't launch placeholder if the container is occluded.
		if (container != null && container != getTopActiveContainer(container.getTaskId())) {
		return false;
		}

		SplitContainer splitContainer = container != null ? getActiveSplitForContainer(container)
		: null;
		final SplitContainer splitContainer = getActiveSplitForContainer(container);
		if (splitContainer != null && container.equals(splitContainer.getPrimaryContainer())) {
		// Don't launch placeholder in primary split container
		return false;
		@@ -876,9 +1029,9 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		* if available.
		*/
		@Nullable
		private static SplitPairRule getSplitRule(@NonNull Activity primaryActivity,
		@NonNull Intent secondaryActivityIntent, @NonNull List<EmbeddingRule> splitRules) {
		for (EmbeddingRule rule : splitRules) {
		private SplitPairRule getSplitRule(@NonNull Activity primaryActivity,
		@NonNull Intent secondaryActivityIntent) {
		for (EmbeddingRule rule : mSplitRules) {
		if (!(rule instanceof SplitPairRule)) {
		continue;
		}
		@@ -894,9 +1047,9 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		* Returns a split rule for the provided pair of primary and secondary activities if available.
		*/
		@Nullable
		private static SplitPairRule getSplitRule(@NonNull Activity primaryActivity,
		@NonNull Activity secondaryActivity, @NonNull List<EmbeddingRule> splitRules) {
		for (EmbeddingRule rule : splitRules) {
		private SplitPairRule getSplitRule(@NonNull Activity primaryActivity,
		@NonNull Activity secondaryActivity) {
		for (EmbeddingRule rule : mSplitRules) {
		if (!(rule instanceof SplitPairRule)) {
		continue;
		}
		@@ -933,16 +1086,24 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		return mHandler;
		}

		int getTaskId(@NonNull Activity activity) {
		// Prefer to get the taskId from TaskFragmentContainer because Activity.getTaskId() is an
		// IPC call.
		final TaskFragmentContainer container = getContainerWithActivity(activity);
		return container != null ? container.getTaskId() : activity.getTaskId();
		}

		@Nullable
		Activity getActivity(@NonNull IBinder activityToken) {
		return ActivityThread.currentActivityThread().getActivity(activityToken);
		}

		/**
		* Returns {@code true} if an Activity with the provided component name should always be
		* expanded to occupy full task bounds. Such activity must not be put in a split.
		*/
		private static boolean shouldExpand(@Nullable Activity activity, @Nullable Intent intent,
		List<EmbeddingRule> splitRules) {
		if (splitRules == null) {
		return false;
		}
		for (EmbeddingRule rule : splitRules) {
		private boolean shouldExpand(@Nullable Activity activity, @Nullable Intent intent) {
		for (EmbeddingRule rule : mSplitRules) {
		if (!(rule instanceof ActivityRule)) {
		continue;
		}
		@@ -996,8 +1157,8 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		*/
		boolean shouldRetainAssociatedActivity(@NonNull TaskFragmentContainer finishingContainer,
		@NonNull Activity associatedActivity) {
		TaskFragmentContainer associatedContainer = getContainerWithActivity(
		associatedActivity.getActivityToken());
		final TaskFragmentContainer associatedContainer = getContainerWithActivity(
		associatedActivity);
		if (associatedContainer == null) {
		return false;
		}
		@@ -1085,129 +1246,19 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		return super.onStartActivity(who, intent, options);
		}

		if (shouldExpand(null, intent, getSplitRules())) {
		setLaunchingInExpandedContainer(launchingActivity, options);
		} else if (!splitWithLaunchingActivity(launchingActivity, intent, options)) {
		setLaunchingInSameSideContainer(launchingActivity, intent, options);
		}

		return super.onStartActivity(who, intent, options);
		}

		private void setLaunchingInExpandedContainer(Activity launchingActivity, Bundle options) {
		TaskFragmentContainer newContainer = mPresenter.createNewExpandedContainer(
		launchingActivity);

		// Amend the request to let the WM know that the activity should be placed in the
		// dedicated container.
		options.putBinder(ActivityOptions.KEY_LAUNCH_TASK_FRAGMENT_TOKEN,
		newContainer.getTaskFragmentToken());
		}

		/**
		* Returns {@code true} if the activity that is going to be started via the
		* {@code intent} should be paired with the {@code launchingActivity} and is set to be
		* launched in the side container.
		*/
		private boolean splitWithLaunchingActivity(Activity launchingActivity, Intent intent,
		Bundle options) {
		final SplitPairRule splitPairRule = getSplitRule(launchingActivity, intent,
		getSplitRules());
		if (splitPairRule == null) {
		return false;
		}

		// Check if there is any existing side container to launch into.
		TaskFragmentContainer secondaryContainer = findSideContainerForNewLaunch(
		launchingActivity, splitPairRule);
		if (secondaryContainer == null) {
		// Create a new split with an empty side container.
		secondaryContainer = mPresenter
		.createNewSplitWithEmptySideContainer(launchingActivity, splitPairRule);
		}

		final int taskId = getTaskId(launchingActivity);
		final WindowContainerTransaction wct = new WindowContainerTransaction();
		final TaskFragmentContainer launchedInTaskFragment = resolveStartActivityIntent(wct,
		taskId, intent, launchingActivity);
		if (launchedInTaskFragment != null) {
		mPresenter.applyTransaction(wct);
		// Amend the request to let the WM know that the activity should be placed in the
		// dedicated container.
		options.putBinder(ActivityOptions.KEY_LAUNCH_TASK_FRAGMENT_TOKEN,
		secondaryContainer.getTaskFragmentToken());
		return true;
		}

		/**
		* Finds if there is an existing split side {@link TaskFragmentContainer} that can be used
		* for the new rule.
		*/
		@Nullable
		private TaskFragmentContainer findSideContainerForNewLaunch(Activity launchingActivity,
		SplitPairRule splitPairRule) {
		final TaskFragmentContainer launchingContainer = getContainerWithActivity(
		launchingActivity.getActivityToken());
		if (launchingContainer == null) {
		return null;
		}

		// We only check if the launching activity is the primary of the split. We will check
		// if the launching activity is the secondary in #setLaunchingInSameSideContainer.
		final SplitContainer splitContainer = getActiveSplitForContainer(launchingContainer);
		if (splitContainer == null
		\|\| splitContainer.getPrimaryContainer() != launchingContainer) {
		return null;
		}

		if (canReuseContainer(splitPairRule, splitContainer.getSplitRule())) {
		return splitContainer.getSecondaryContainer();
		}
		return null;
		}

		/**
		* Checks if the activity that is going to be started via the {@code intent} should be
		* paired with the existing top activity which is currently paired with the
		* {@code launchingActivity}. If so, set the activity to be launched in the same side
		* container of the {@code launchingActivity}.
		*/
		private void setLaunchingInSameSideContainer(Activity launchingActivity, Intent intent,
		Bundle options) {
		final TaskFragmentContainer launchingContainer = getContainerWithActivity(
		launchingActivity.getActivityToken());
		if (launchingContainer == null) {
		return;
		}

		final SplitContainer splitContainer = getActiveSplitForContainer(launchingContainer);
		if (splitContainer == null) {
		return;
		launchedInTaskFragment.getTaskFragmentToken());
		}

		if (splitContainer.getSecondaryContainer() != launchingContainer) {
		return;
		}

		// The launching activity is on the secondary container. Retrieve the primary
		// activity from the other container.
		Activity primaryActivity =
		splitContainer.getPrimaryContainer().getTopNonFinishingActivity();
		if (primaryActivity == null) {
		return;
		}

		final SplitPairRule splitPairRule = getSplitRule(primaryActivity, intent,
		getSplitRules());
		if (splitPairRule == null) {
		return;
		}

		// Can only launch in the same container if the rules share the same presentation.
		if (!canReuseContainer(splitPairRule, splitContainer.getSplitRule())) {
		return;
		}

		// Amend the request to let the WM know that the activity should be placed in the
		// dedicated container. This is necessary for the case that the activity is started
		// into a new Task, or new Task will be escaped from the current host Task and be
		// displayed in fullscreen.
		options.putBinder(ActivityOptions.KEY_LAUNCH_TASK_FRAGMENT_TOKEN,
		launchingContainer.getTaskFragmentToken());
		return super.onStartActivity(who, intent, options);
		}
		}

		@@ -1228,8 +1279,15 @@ public class SplitController implements JetpackTaskFragmentOrganizer.TaskFragmen
		if (!isContainerReusableRule(rule1) \|\| !isContainerReusableRule(rule2)) {
		return false;
		}
		return rule1.getSplitRatio() == rule2.getSplitRatio()
		&& rule1.getLayoutDirection() == rule2.getLayoutDirection();
		final SplitPairRule pairRule1 = (SplitPairRule) rule1;
		final SplitPairRule pairRule2 = (SplitPairRule) rule2;
		// TODO(b/231655482): add util method to do the comparison in SplitPairRule.
		return pairRule1.getSplitRatio() == pairRule2.getSplitRatio()
		&& pairRule1.getLayoutDirection() == pairRule2.getLayoutDirection()
		&& pairRule1.getFinishPrimaryWithSecondary()
		== pairRule2.getFinishPrimaryWithSecondary()
		&& pairRule1.getFinishSecondaryWithPrimary()
		== pairRule2.getFinishSecondaryWithPrimary();
		}

		/**

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/SplitPresenter.java

+14 −28

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libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/TaskContainer.java

+19 −0

Original line number	Diff line number	Diff line
		@@ -142,4 +142,23 @@ class TaskContainer {
		container.removePendingAppearedActivity(pendingAppearedActivity);
		}
		}

		@Nullable
		TaskFragmentContainer getTopTaskFragmentContainer() {
		if (mContainers.isEmpty()) {
		return null;
		}
		return mContainers.get(mContainers.size() - 1);
		}

		@Nullable
		Activity getTopNonFinishingActivity() {
		for (int i = mContainers.size() - 1; i >= 0; i--) {
		final Activity activity = mContainers.get(i).getTopNonFinishingActivity();
		if (activity != null) {
		return activity;
		}
		}
		return null;
		}
		}

libs/WindowManager/Jetpack/src/androidx/window/extensions/embedding/TaskFragmentContainer.java

+1 −3

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libs/WindowManager/Jetpack/tests/unittest/src/androidx/window/extensions/embedding/SplitControllerTest.java

+255 −3

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