Merge "Allow TaskDisplayArea to have TaskDisplayArea children (3/n)" (56cf2dd5) · Commits · e / os / android_frameworks_base

data/etc/services.core.protolog.json

+18 −18

Original line number	Diff line number	Diff line
		@@ -901,6 +901,12 @@
		"group": "WM_DEBUG_ORIENTATION",
		"at": "com\/android\/server\/wm\/WindowManagerService.java"
		},
		"-1069336896": {
		"message": "onRootTaskOrderChanged(): rootTask=%s",
		"level": "DEBUG",
		"group": "WM_DEBUG_RECENTS_ANIMATIONS",
		"at": "com\/android\/server\/wm\/RecentsAnimation.java"
		},
		"-1066383762": {
		"message": "Sleep still waiting to pause %s",
		"level": "VERBOSE",
		@@ -1303,6 +1309,12 @@
		"group": "WM_DEBUG_CONFIGURATION",
		"at": "com\/android\/server\/am\/ActivityManagerService.java"
		},
		"-592371899": {
		"message": "Skipping rootTask: (mismatch activity\/rootTask) %s",
		"level": "DEBUG",
		"group": "WM_DEBUG_TASKS",
		"at": "com\/android\/server\/wm\/TaskDisplayArea.java"
		},
		"-583031528": {
		"message": "%s",
		"level": "INFO",
		@@ -2119,12 +2131,6 @@
		"group": "WM_DEBUG_APP_TRANSITIONS",
		"at": "com\/android\/server\/wm\/AppTransition.java"
		},
		"349443311": {
		"message": "pauseBackStacks: task=%s mResumedActivity=%s",
		"level": "DEBUG",
		"group": "WM_DEBUG_STATES",
		"at": "com\/android\/server\/wm\/TaskDisplayArea.java"
		},
		"355720268": {
		"message": "stopFreezingDisplayLocked: Unfreezing now",
		"level": "DEBUG",
		@@ -2161,6 +2167,12 @@
		"group": "WM_DEBUG_BOOT",
		"at": "com\/android\/server\/wm\/WindowManagerService.java"
		},
		"391189028": {
		"message": "pauseBackTasks: task=%s mResumedActivity=%s",
		"level": "DEBUG",
		"group": "WM_DEBUG_STATES",
		"at": "com\/android\/server\/wm\/TaskDisplayArea.java"
		},
		"397105698": {
		"message": "grantEmbeddedWindowFocus remove request for win=%s dropped since no candidate was found",
		"level": "VERBOSE",
		@@ -2245,12 +2257,6 @@
		"group": "WM_DEBUG_WINDOW_ORGANIZER",
		"at": "com\/android\/server\/wm\/DisplayAreaOrganizerController.java"
		},
		"490877640": {
		"message": "onStackOrderChanged(): stack=%s",
		"level": "DEBUG",
		"group": "WM_DEBUG_RECENTS_ANIMATIONS",
		"at": "com\/android\/server\/wm\/RecentsAnimation.java"
		},
		"495032901": {
		"message": "Expected target stack=%s to restored behind stack=%s but it is behind stack=%s",
		"level": "WARN",
		@@ -2575,12 +2581,6 @@
		"group": "WM_DEBUG_REMOTE_ANIMATIONS",
		"at": "com\/android\/server\/wm\/RemoteAnimationController.java"
		},
		"875196661": {
		"message": "Skipping stack: (mismatch activity\/stack) %s",
		"level": "DEBUG",
		"group": "WM_DEBUG_TASKS",
		"at": "com\/android\/server\/wm\/TaskDisplayArea.java"
		},
		"883475718": {
		"message": "Report configuration: %s %s %s",
		"level": "VERBOSE",

services/core/java/com/android/server/wm/DisplayContent.java

+12 −11

Original line number	Diff line number	Diff line
		@@ -2300,10 +2300,9 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		return count[0];
		}

		@VisibleForTesting
		@Nullable
		Task getTopRootTask() {
		return getItemFromTaskDisplayAreas(TaskDisplayArea::getTopRootTask);
		return getRootTask(t -> true);
		}

		/**
		@@ -5479,12 +5478,12 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		return;
		}

		// Check if all task display areas have only the empty home stacks left.
		boolean hasNonEmptyHomeStack = forAllRootTasks(stack ->
		!stack.isActivityTypeHome() \|\| stack.hasChild());
		if (!hasNonEmptyHomeStack && getRootTaskCount() > 0) {
		// Release this display if only empty home stack(s) are left. This display will be
		// released along with the stack(s) removal.
		// Check if all task display areas have only the empty home root tasks left.
		boolean hasNonEmptyHomeRootTask = forAllRootTasks(rootTask ->
		!rootTask.isActivityTypeHome() \|\| rootTask.hasChild());
		if (!hasNonEmptyHomeRootTask && getRootTaskCount() > 0) {
		// Release this display if only empty home root task(s) are left. This display will be
		// released along with the root task(s) removal.
		forAllRootTasks(Task::removeIfPossible);
		} else if (getTopRootTask() == null) {
		removeIfPossible();
		@@ -5525,12 +5524,14 @@ class DisplayContent extends RootDisplayArea implements WindowManagerPolicy.Disp
		return;
		}
		mInEnsureActivitiesVisible = true;
		mAtmService.mTaskSupervisor.beginActivityVisibilityUpdate();
		try {
		forAllTaskDisplayAreas(taskDisplayArea -> {
		taskDisplayArea.ensureActivitiesVisible(starting, configChanges,
		preserveWindows, notifyClients, userLeaving);
		forAllRootTasks(rootTask -> {
		rootTask.ensureActivitiesVisible(starting, configChanges, preserveWindows,
		notifyClients, userLeaving);
		});
		} finally {
		mAtmService.mTaskSupervisor.endActivityVisibilityUpdate();
		mInEnsureActivitiesVisible = false;
		}
		}

services/core/java/com/android/server/wm/RecentsAnimation.java

+4 −3

Original line number	Diff line number	Diff line
		@@ -413,9 +413,10 @@ class RecentsAnimation implements RecentsAnimationCallbacks, OnRootTaskOrderChan

		@Override
		public void onRootTaskOrderChanged(Task rootTask) {
		ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "onStackOrderChanged(): stack=%s", rootTask);
		if (mDefaultTaskDisplayArea.getIndexOf(rootTask) == -1 \|\| !rootTask.shouldBeVisible(null)) {
		// The stack is not visible, so ignore this change
		ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "onRootTaskOrderChanged(): rootTask=%s", rootTask);
		if (mDefaultTaskDisplayArea.getRootTask(t -> t == rootTask) == null
		\|\| !rootTask.shouldBeVisible(null)) {
		// The root task is not visible, so ignore this change
		return;
		}
		final RecentsAnimationController controller =

services/core/java/com/android/server/wm/RootWindowContainer.java

+70 −70

Original line number	Diff line number	Diff line
		@@ -1828,19 +1828,19 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}

		/**
		* @return a list of activities which are the top ones in each visible stack. The first
		* @return a list of activities which are the top ones in each visible root task. The first
		* entry will be the focused activity.
		*/
		List<IBinder> getTopVisibleActivities() {
		final ArrayList<IBinder> topActivityTokens = new ArrayList<>();
		final Task topFocusedStack = getTopDisplayFocusedRootTask();
		final Task topFocusedRootTask = getTopDisplayFocusedRootTask();
		// Traverse all displays.
		forAllRootTasks(stack -> {
		// Get top activity from a visible stack and add it to the list.
		if (stack.shouldBeVisible(null /* starting */)) {
		final ActivityRecord top = stack.getTopNonFinishingActivity();
		forAllRootTasks(rootTask -> {
		// Get top activity from a visible root task and add it to the list.
		if (rootTask.shouldBeVisible(null /* starting */)) {
		final ActivityRecord top = rootTask.getTopNonFinishingActivity();
		if (top != null) {
		if (stack == topFocusedStack) {
		if (rootTask == topFocusedRootTask) {
		topActivityTokens.add(0, top.appToken);
		} else {
		topActivityTokens.add(top.appToken);
		@@ -1854,9 +1854,9 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		@Nullable
		Task getTopDisplayFocusedRootTask() {
		for (int i = getChildCount() - 1; i >= 0; --i) {
		final Task focusedStack = getChildAt(i).getFocusedRootTask();
		if (focusedStack != null) {
		return focusedStack;
		final Task focusedRootTask = getChildAt(i).getFocusedRootTask();
		if (focusedRootTask != null) {
		return focusedRootTask;
		}
		}
		return null;
		@@ -1864,15 +1864,15 @@ class RootWindowContainer extends WindowContainer<DisplayContent>

		@Nullable
		ActivityRecord getTopResumedActivity() {
		final Task focusedStack = getTopDisplayFocusedRootTask();
		if (focusedStack == null) {
		final Task focusedRootTask = getTopDisplayFocusedRootTask();
		if (focusedRootTask == null) {
		return null;
		}
		final ActivityRecord resumedActivity = focusedStack.getResumedActivity();
		final ActivityRecord resumedActivity = focusedRootTask.getResumedActivity();
		if (resumedActivity != null && resumedActivity.app != null) {
		return resumedActivity;
		}
		// The top focused stack might not have a resumed activity yet - look on all displays in
		// The top focused root task might not have a resumed activity yet - look on all displays in
		// focus order.
		return getItemFromTaskDisplayAreas(TaskDisplayArea::getFocusedActivity);
		}
		@@ -1997,36 +1997,36 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}

		boolean switchUser(int userId, UserState uss) {
		final Task topFocusedStack = getTopDisplayFocusedRootTask();
		final int focusStackId = topFocusedStack != null
		? topFocusedStack.getRootTaskId() : INVALID_TASK_ID;
		// We dismiss the docked stack whenever we switch users.
		final Task topFocusedRootTask = getTopDisplayFocusedRootTask();
		final int focusRootTaskId = topFocusedRootTask != null
		? topFocusedRootTask.getRootTaskId() : INVALID_TASK_ID;
		// We dismiss the docked root task whenever we switch users.
		if (getDefaultTaskDisplayArea().isSplitScreenModeActivated()) {
		getDefaultTaskDisplayArea().onSplitScreenModeDismissed();
		}
		// Also dismiss the pinned stack whenever we switch users. Removing the pinned stack will
		// also cause all tasks to be moved to the fullscreen stack at a position that is
		// Also dismiss the pinned root task whenever we switch users. Removing the pinned root task
		// will also cause all tasks to be moved to the fullscreen root task at a position that is
		// appropriate.
		removeRootTasksInWindowingModes(WINDOWING_MODE_PINNED);

		mUserRootTaskInFront.put(mCurrentUser, focusStackId);
		mUserRootTaskInFront.put(mCurrentUser, focusRootTaskId);
		mCurrentUser = userId;

		mTaskSupervisor.mStartingUsers.add(uss);
		forAllRootTasks(stack -> {
		stack.switchUser(userId);
		forAllRootTasks(rootTask -> {
		rootTask.switchUser(userId);
		});

		final int restoreStackId = mUserRootTaskInFront.get(userId);
		Task stack = getRootTask(restoreStackId);
		if (stack == null) {
		stack = getDefaultTaskDisplayArea().getOrCreateRootHomeTask();
		final int restoreRootTaskId = mUserRootTaskInFront.get(userId);
		Task rootTask = getRootTask(restoreRootTaskId);
		if (rootTask == null) {
		rootTask = getDefaultTaskDisplayArea().getOrCreateRootHomeTask();
		}
		final boolean homeInFront = stack.isActivityTypeHome();
		if (stack.isOnHomeDisplay()) {
		stack.moveToFront("switchUserOnHomeDisplay");
		final boolean homeInFront = rootTask.isActivityTypeHome();
		if (rootTask.isOnHomeDisplay()) {
		rootTask.moveToFront("switchUserOnHomeDisplay");
		} else {
		// Stack was moved to another display while user was swapped out.
		// Root task was moved to another display while user was swapped out.
		resumeHomeActivity(null, "switchUserOnOtherDisplay", getDefaultTaskDisplayArea());
		}
		return homeInFront;
		@@ -2350,7 +2350,7 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		return result;
		}

		void applySleepTokens(boolean applyToStacks) {
		void applySleepTokens(boolean applyToRootTasks) {
		for (int displayNdx = getChildCount() - 1; displayNdx >= 0; --displayNdx) {
		// Set the sleeping state of the display.
		final DisplayContent display = getChildAt(displayNdx);
		@@ -2360,17 +2360,17 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}
		display.setIsSleeping(displayShouldSleep);

		if (!applyToStacks) {
		if (!applyToRootTasks) {
		continue;
		}

		// Set the sleeping state of the stacks on the display.
		display.forAllRootTasks(stack -> {
		// Set the sleeping state of the root tasks on the display.
		display.forAllRootTasks(rootTask -> {
		if (displayShouldSleep) {
		stack.goToSleepIfPossible(false /* shuttingDown */);
		rootTask.goToSleepIfPossible(false /* shuttingDown */);
		} else {
		stack.awakeFromSleepingLocked();
		if (stack.isFocusedStackOnDisplay()
		rootTask.awakeFromSleepingLocked();
		if (rootTask.isFocusedStackOnDisplay()
		&& !mTaskSupervisor.getKeyguardController()
		.isKeyguardOrAodShowing(display.mDisplayId)) {
		// If the keyguard is unlocked - resume immediately.
		@@ -2378,13 +2378,13 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		// process the keyguard going away, which can happen before the sleep
		// token is released. As a result, it is important we resume the
		// activity here.
		stack.resumeTopActivityUncheckedLocked(null, null);
		rootTask.resumeTopActivityUncheckedLocked(null, null);
		}
		// The visibility update must not be called before resuming the top, so the
		// display orientation can be updated first if needed. Otherwise there may
		// have redundant configuration changes due to apply outdated display
		// orientation (from keyguard) to activity.
		stack.ensureActivitiesVisible(null /* starting /, 0 / configChanges */,
		rootTask.ensureActivitiesVisible(null /* starting /, 0 / configChanges */,
		false /* preserveWindows */);
		}
		});
		@@ -2427,7 +2427,7 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		task.fillTaskInfo(info);

		// A task might be not attached to a display.
		info.position = taskDisplayArea != null ? taskDisplayArea.getIndexOf(task) : 0;
		info.position = taskDisplayArea != null ? taskDisplayArea.getTaskIndexOf(task) : 0;
		info.visible = task.shouldBeVisible(null);
		task.getBounds(info.bounds);

		@@ -2471,21 +2471,21 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}

		RootTaskInfo getRootTaskInfo(int windowingMode, int activityType) {
		final Task stack = getRootTask(windowingMode, activityType);
		return (stack != null) ? getRootTaskInfo(stack) : null;
		final Task rootTask = getRootTask(windowingMode, activityType);
		return (rootTask != null) ? getRootTaskInfo(rootTask) : null;
		}

		RootTaskInfo getRootTaskInfo(int windowingMode, int activityType, int displayId) {
		final Task stack = getRootTask(windowingMode, activityType, displayId);
		return (stack != null) ? getRootTaskInfo(stack) : null;
		final Task rootTask = getRootTask(windowingMode, activityType, displayId);
		return (rootTask != null) ? getRootTaskInfo(rootTask) : null;
		}

		/** If displayId == INVALID_DISPLAY, this will get root task infos on all displays */
		ArrayList<RootTaskInfo> getAllRootTaskInfos(int displayId) {
		final ArrayList<RootTaskInfo> list = new ArrayList<>();
		if (displayId == INVALID_DISPLAY) {
		forAllRootTasks(stack -> {
		list.add(getRootTaskInfo(stack));
		forAllRootTasks(rootTask -> {
		list.add(getRootTaskInfo(rootTask));
		});
		return list;
		}
		@@ -2493,8 +2493,8 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		if (display == null) {
		return list;
		}
		display.forAllRootTasks(stack -> {
		list.add(getRootTaskInfo(stack));
		display.forAllRootTasks(rootTask -> {
		list.add(getRootTaskInfo(rootTask));
		});
		return list;
		}
		@@ -2955,8 +2955,8 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}

		// If {@code r} is already in target display area and its task is the same as the candidate
		// task, the intention should be getting a launch stack for the reusable activity, so we can
		// use the existing stack.
		// task, the intention should be getting a launch root task for the reusable activity, so we
		// can use the existing root task.
		if (candidateTask != null) {
		final TaskDisplayArea attachedTaskDisplayArea = candidateTask.getDisplayArea();
		if (attachedTaskDisplayArea == null \|\| attachedTaskDisplayArea == taskDisplayArea) {
		@@ -2965,9 +2965,9 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		// Or the candidate task is already a root task that can be reused by reparenting
		// it to the target display.
		if (candidateTask.isRootTask()) {
		final Task stack = candidateTask.getRootTask();
		stack.reparent(taskDisplayArea, true /* onTop */);
		return stack;
		final Task rootTask = candidateTask.getRootTask();
		rootTask.reparent(taskDisplayArea, true /* onTop */);
		return rootTask;
		}
		}

		@@ -2984,16 +2984,16 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		windowingMode = taskDisplayArea.validateWindowingMode(windowingMode, r, candidateTask,
		r.getActivityType());

		// Return the topmost valid stack on the display.
		// Return the topmost valid root task on the display.
		final int targetWindowingMode = windowingMode;
		final Task topmostValidStack = taskDisplayArea.getRootTask(stack ->
		isValidLaunchRootTask(stack, r, targetWindowingMode));
		if (topmostValidStack != null) {
		return topmostValidStack;
		final Task topmostValidRootTask = taskDisplayArea.getRootTask(rootTask ->
		isValidLaunchRootTask(rootTask, r, targetWindowingMode));
		if (topmostValidRootTask != null) {
		return topmostValidRootTask;
		}

		// If there is no valid stack on the secondary display area - check if new dynamic stack
		// will do.
		// If there is no valid root task on the secondary display area - check if new dynamic root
		// task will do.
		if (taskDisplayArea != getDisplayContent(taskDisplayArea.getDisplayId())
		.getDefaultTaskDisplayArea()) {
		final int activityType =
		@@ -3224,8 +3224,8 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}

		void finishVoiceTask(IVoiceInteractionSession session) {
		forAllRootTasks(stack -> {
		stack.finishVoiceTask(session);
		forAllRootTasks(rootTask -> {
		rootTask.finishVoiceTask(session);
		});
		}

		@@ -3284,8 +3284,8 @@ class RootWindowContainer extends WindowContainer<DisplayContent>

		boolean allResumedActivitiesVisible() {
		boolean[] foundResumed = {false};
		final boolean foundInvisibleResumedActivity = forAllRootTasks(stack -> {
		final ActivityRecord r = stack.getResumedActivity();
		final boolean foundInvisibleResumedActivity = forAllRootTasks(rootTask -> {
		final ActivityRecord r = rootTask.getResumedActivity();
		if (r != null) {
		if (!r.nowVisible) {
		return true;
		@@ -3529,9 +3529,9 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		}
		} else {
		final ArrayList<ActivityRecord> activities = new ArrayList<>();
		forAllRootTasks(stack -> {
		if (!dumpVisibleStacksOnly \|\| stack.shouldBeVisible(null)) {
		activities.addAll(stack.getDumpActivitiesLocked(name));
		forAllRootTasks(rootTask -> {
		if (!dumpVisibleStacksOnly \|\| rootTask.shouldBeVisible(null)) {
		activities.addAll(rootTask.getDumpActivitiesLocked(name));
		}
		});
		return activities;
		@@ -3581,11 +3581,11 @@ class RootWindowContainer extends WindowContainer<DisplayContent>
		pw.print("Display #");
		pw.print(displayContent.mDisplayId);
		pw.println(" (activities from top to bottom):");
		displayContent.forAllRootTasks(stack -> {
		displayContent.forAllRootTasks(rootTask -> {
		if (needSep[0]) {
		pw.println();
		}
		needSep[0] = stack.dump(fd, pw, dumpAll, dumpClient, dumpPackage, false);
		needSep[0] = rootTask.dump(fd, pw, dumpAll, dumpClient, dumpPackage, false);
		printed[0] \|= needSep[0];
		});
		displayContent.forAllTaskDisplayAreas(taskDisplayArea -> {

services/core/java/com/android/server/wm/Task.java

+20 −18

Original line number	Diff line number	Diff line
		@@ -5318,20 +5318,19 @@ class Task extends WindowContainer<WindowContainer> {
		final TaskDisplayArea taskDisplayArea = getDisplayArea();

		if (inSplitScreenSecondaryWindowingMode()) {
		// If the stack is in split-screen secondary mode, we need to make sure we move the
		// primary split-screen stack forward in the case it is currently behind a fullscreen
		// stack so both halves of the split-screen appear on-top and the fullscreen stack isn't
		// cutting between them.
		// If the root task is in split-screen secondary mode, we need to make sure we move the
		// primary split-screen root task forward in the case it is currently behind a
		// fullscreen root task so both halves of the split-screen appear on-top and the
		// fullscreen root task isn't cutting between them.
		// TODO(b/70677280): This is a workaround until we can fix as part of b/70677280.
		final Task topFullScreenStack =
		final Task topFullScreenRootTask =
		taskDisplayArea.getTopRootTaskInWindowingMode(WINDOWING_MODE_FULLSCREEN);
		if (topFullScreenStack != null) {
		final Task primarySplitScreenStack =
		if (topFullScreenRootTask != null) {
		final Task primarySplitScreenRootTask =
		taskDisplayArea.getRootSplitScreenPrimaryTask();
		if (primarySplitScreenStack != null
		&& taskDisplayArea.getIndexOf(topFullScreenStack)
		> taskDisplayArea.getIndexOf(primarySplitScreenStack)) {
		primarySplitScreenStack.moveToFront(reason + " splitScreenToTop");
		if (primarySplitScreenRootTask != null
		&& topFullScreenRootTask.compareTo(primarySplitScreenRootTask) > 0) {
		primarySplitScreenRootTask.moveToFront(reason + " splitScreenToTop");
		}
		}
		}
		@@ -5746,7 +5745,7 @@ class Task extends WindowContainer<WindowContainer> {
		}

		/**
		* @return {@code true} if this is the focused stack on its current display, {@code false}
		* @return {@code true} if this is the focused root task on its current display, {@code false}
		* otherwise.
		*/
		boolean isFocusedStackOnDisplay() {
		@@ -6698,18 +6697,21 @@ class Task extends WindowContainer<WindowContainer> {
		});
		}

		/** @return true if the stack behind this one is a standard activity type. */
		private boolean inFrontOfStandardStack() {
		/** @return true if the root task behind this one is a standard activity type. */
		private boolean inFrontOfStandardRootTask() {
		final TaskDisplayArea taskDisplayArea = getDisplayArea();
		if (taskDisplayArea == null) {
		return false;
		}
		final int index = taskDisplayArea.getIndexOf(this);
		final int index = taskDisplayArea.getTaskIndexOf(this);
		if (index == 0) {
		return false;
		}
		final Task stackBehind = taskDisplayArea.getChildAt(index - 1);
		return stackBehind.isActivityTypeStandard();
		final int[] indexCount = new int[1];
		final Task rootTaskBehind = taskDisplayArea.getRootTask(
		// From bottom to top, find the one behind this Task.
		task -> ++indexCount[0] == index, false /* traverseTopToBottom */);
		return rootTaskBehind.isActivityTypeStandard();
		}

		boolean shouldUpRecreateTaskLocked(ActivityRecord srec, String destAffinity) {
		@@ -6730,7 +6732,7 @@ class Task extends WindowContainer<WindowContainer> {
		if (srec.isRootOfTask() && task.getBaseIntent() != null
		&& task.getBaseIntent().isDocument()) {
		// Okay, this activity is at the root of its task. What to do, what to do...
		if (!inFrontOfStandardStack()) {
		if (!inFrontOfStandardRootTask()) {
		// Finishing won't return to an application, so we need to recreate.
		return true;
		}