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Commit 5406617b authored by Wei Sheng Shih's avatar Wei Sheng Shih Committed by Automerger Merge Worker
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Merge "Fix the root task of secondary split screen could be overwritten." into... 

Merge "Fix the root task of secondary split screen could be overwritten." into rvc-dev am: 67a056a9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11716093

Change-Id: Ia0619f4429508d84386f68e16871a294dcf248e6
parents 6da6bf84 67a056a9

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

+22 −9
Original line number Diff line number Diff line
@@ -1742,21 +1742,23 @@ final class TaskDisplayArea extends DisplayArea<ActivityStack> { 
        // reparenting stack finished.

        // Keep the order from bottom to top.

        int numStacks = getStackCount();



        final boolean splitScreenActivated = toDisplayArea.isSplitScreenModeActivated();

        final ActivityStack rootStack = splitScreenActivated ? toDisplayArea

                .getTopStackInWindowingMode(WINDOWING_MODE_SPLIT_SCREEN_SECONDARY) : null;

        for (int stackNdx = 0; stackNdx < numStacks; stackNdx++) {

            final ActivityStack stack = getStackAt(stackNdx);

            // Always finish non-standard type stacks.

            if (destroyContentOnRemoval || !stack.isActivityTypeStandardOrUndefined()) {

                stack.finishAllActivitiesImmediately();

            } else {

                // If default display is in split-window mode, set windowing mode of the

                // stack to split-screen secondary. Otherwise, set the windowing mode to

                // undefined by default to let stack inherited the windowing mode from the

                // new display.

                final int windowingMode = toDisplayArea.isSplitScreenModeActivated()

                        ? WINDOWING_MODE_SPLIT_SCREEN_SECONDARY

                        : WINDOWING_MODE_UNDEFINED;

                stack.reparent(toDisplayArea, true /* onTop */);

                stack.setWindowingMode(windowingMode);

                // Reparent the stack to the root task of secondary-split-screen or display area.

                stack.reparent(stack.supportsSplitScreenWindowingMode() && rootStack != null

                        ? rootStack : toDisplayArea, POSITION_TOP);



                // Set the windowing mode to undefined by default to let the stack inherited the

                // windowing mode.

                stack.setWindowingMode(WINDOWING_MODE_UNDEFINED);

                lastReparentedStack = stack;

            }

            // Stacks may be removed from this display. Ensure each stack will be processed
@@ -1764,6 +1766,17 @@ final class TaskDisplayArea extends DisplayArea<ActivityStack> { 
            stackNdx -= numStacks - getStackCount();

            numStacks = getStackCount();

        }

        if (lastReparentedStack != null && splitScreenActivated) {

            if (!lastReparentedStack.supportsSplitScreenWindowingMode()) {

                mAtmService.getTaskChangeNotificationController()

                        .notifyActivityDismissingDockedStack();

                toDisplayArea.onSplitScreenModeDismissed(lastReparentedStack);

            } else if (rootStack != null) {

                // update focus

                rootStack.moveToFront("display-removed");

            }

        }



        mRemoved = true;



        return lastReparentedStack;