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Commit 90ff4aa9 authored by Brad Hinegardner's avatar Brad Hinegardner Committed by Nishith Khanna
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[RESTRICT AUTOMERGE] Stay in app pinned mode upon SystemUI crash 

Bug: b/366405211
Test: atest LockTaskControllerTest.java
Flag: EXEMPT BUGFIX
(cherry picked from commit 575845147cb48d71893f12665bae2e8892aa7e06)
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:de7f99673198ee742e441fdcd0cab7165ab2dac7
Merged-In: Ia9f54b229b998e29da53436ed6ed64214903724c
Change-Id: Ia9f54b229b998e29da53436ed6ed64214903724c
parent 6513b539

core/java/android/app/IActivityTaskManager.aidl

+1 −0
Original line number Diff line number Diff line
@@ -176,6 +176,7 @@ interface IActivityTaskManager { 
    List<IBinder> getAppTasks(in String callingPackage);

    void startSystemLockTaskMode(int taskId);

    void stopSystemLockTaskMode();

    void rebuildSystemLockTaskPinnedMode();

    void finishVoiceTask(in IVoiceInteractionSession session);

    int addAppTask(in IBinder activityToken, in Intent intent,

            in ActivityManager.TaskDescription description, in Bitmap thumbnail);

packages/SystemUI/src/com/android/systemui/keyguard/KeyguardViewMediator.java

+12 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 


package com.android.systemui.keyguard;



import static android.app.ActivityManager.LOCK_TASK_MODE_PINNED;

import static android.app.KeyguardManager.LOCK_ON_USER_SWITCH_CALLBACK;

import static android.app.StatusBarManager.SESSION_KEYGUARD;

import static android.provider.Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT;
@@ -3692,6 +3693,17 @@ public class KeyguardViewMediator implements CoreStartable, Dumpable, 
            if (mBootSendUserPresent) {

                sendUserPresentBroadcast();

            }



            mHandler.post(() -> {

                try {

                    if (ActivityTaskManager.getService().getLockTaskModeState()

                            == LOCK_TASK_MODE_PINNED) {

                        ActivityTaskManager.getService().rebuildSystemLockTaskPinnedMode();

                    }

                } catch (RemoteException e) {

                    Log.e(TAG, "Failed to rebuild lock task pinned mode", e);

                }

            });

        }

    }

services/core/java/com/android/server/policy/keyguard/KeyguardServiceDelegate.java

+3 −0
Original line number Diff line number Diff line
@@ -230,7 +230,10 @@ public class KeyguardServiceDelegate { 
        public void onServiceDisconnected(ComponentName name) {

            if (DEBUG) Log.v(TAG, "*** Keyguard disconnected (boo!)");

            mKeyguardService = null;

            // Remember the keyguard enabled state when the service is disconnected.

            boolean wasEnabled = mKeyguardState.enabled;

            mKeyguardState.reset();

            mKeyguardState.enabled = wasEnabled;

            mHandler.post(() -> {

                try {

                    ActivityTaskManager.getService().setLockScreenShown(true /* keyguardShowing */,

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

+14 −0
Original line number Diff line number Diff line
@@ -2629,6 +2629,20 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub { 
        stopLockTaskModeInternal(null, true /* isSystemCaller */);

    }



    @Override

    public void rebuildSystemLockTaskPinnedMode() {

        enforceTaskPermission("rebuildSystemLockTaskPinnedMode");

        // This makes inner call to look as if it was initiated by system.

        final long ident = Binder.clearCallingIdentity();

        try {

            synchronized (mGlobalLock) {

                getLockTaskController().rebuildSystemLockTaskPinnedMode();

            }

        } finally {

            Binder.restoreCallingIdentity(ident);

        }

    }



    void startLockTaskMode(@Nullable Task task, boolean isSystemCaller) {

        ProtoLog.w(WM_DEBUG_LOCKTASK, "startLockTaskMode: %s", task);

        if (task == null || task.mLockTaskAuth == LOCK_TASK_AUTH_DONT_LOCK) {

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

+35 −0
Original line number Diff line number Diff line
@@ -683,6 +683,41 @@ public class LockTaskController { 
                "startLockTask", true);

    }



    /**

     * Method to rebuild Lock Task Pinned Mode. This uses the existing locked tasks.

     */

    void rebuildSystemLockTaskPinnedMode() {

        int lockTaskModeState = mLockTaskModeState;

        if (lockTaskModeState != LOCK_TASK_MODE_PINNED) {

            Slog.e(TAG_LOCKTASK,

                    "rebuildSystemLockTaskPinnedMode: Attempt to rebuild pinned mode but not in "

                            + "pinned mode.");

            return;

        }

        if (mLockTaskModeTasks.isEmpty()) {

            Slog.i(TAG_LOCKTASK,

                    "rebuildSystemLockTaskPinnedMode: mLockTaskModeTasks empty, nothing to "

                            + "rebuild.");

            return;

        }

        Task task = mLockTaskModeTasks.get(0);

        mSupervisor.mRecentTasks.onLockTaskModeStateChanged(LOCK_TASK_MODE_PINNED, task.mUserId);

        // rebuild pinned mode on the handler thread

        mHandler.post(() -> {

            try {

                final IStatusBarService statusBarService = getStatusBarService();

                if (statusBarService != null) {

                    statusBarService.showPinningEnterExitToast(true /* entering */);

                }

                mTaskChangeNotificationController.notifyLockTaskModeChanged(lockTaskModeState);

                setStatusBarState(lockTaskModeState, task.mUserId);

                setKeyguardState(lockTaskModeState, task.mUserId);

            } catch (RemoteException ex) {

                throw new RuntimeException(ex);

            }

        });

    }



    /**

     * Start lock task mode on the given task.

     * @param lockTaskModeState whether fully locked or pinned mode.