diff options
Diffstat (limited to 'services/core/java/com/android/server/am/ActivityStackSupervisor.java')
| -rw-r--r-- | services/core/java/com/android/server/am/ActivityStackSupervisor.java | 189 |
1 files changed, 138 insertions, 51 deletions
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java index c2f6bfd..6908483 100644 --- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java +++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java @@ -17,10 +17,14 @@ package com.android.server.am; import static android.Manifest.permission.START_ANY_ACTIVITY; +import static android.app.ActivityManager.LOCK_TASK_MODE_LOCKED; +import static android.app.ActivityManager.LOCK_TASK_MODE_NONE; +import static android.app.ActivityManager.LOCK_TASK_MODE_PINNED; import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK; import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP; import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; import static android.content.Intent.FLAG_ACTIVITY_TASK_ON_HOME; +import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_IF_WHITELISTED; import static android.content.pm.PackageManager.PERMISSION_GRANTED; import static com.android.server.am.ActivityManagerDebugConfig.*; import static com.android.server.am.ActivityManagerService.FIRST_SUPERVISOR_STACK_MSG; @@ -28,6 +32,10 @@ import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE; import static com.android.server.am.ActivityRecord.RECENTS_ACTIVITY_TYPE; import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE; import static com.android.server.am.ActivityStack.ActivityState.*; +import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK; +import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE; +import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE; +import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_WHITELISTED; import android.app.Activity; import android.app.ActivityManager; @@ -261,17 +269,17 @@ public final class ActivityStackSupervisor implements DisplayListener { // TODO: Add listener for removal of references. /** Mapping from (ActivityStack/TaskStack).mStackId to their current state */ - private SparseArray<ActivityContainer> mActivityContainers = new SparseArray<ActivityContainer>(); + private SparseArray<ActivityContainer> mActivityContainers = new SparseArray<>(); /** Mapping from displayId to display current state */ - private final SparseArray<ActivityDisplay> mActivityDisplays = - new SparseArray<ActivityDisplay>(); + private final SparseArray<ActivityDisplay> mActivityDisplays = new SparseArray<>(); InputManagerInternal mInputManagerInternal; - /** If non-null then the task specified remains in front and no other tasks may be started - * until the task exits or #stopLockTaskMode() is called. */ - TaskRecord mLockTaskModeTask; + /** The chain of tasks in lockTask mode. The current frontmost task is at the top, and tasks + * may be finished until there is only one entry left. If this is empty the system is not + * in lockTask mode. */ + ArrayList<TaskRecord> mLockTaskModeTasks = new ArrayList<>(); /** Store the current lock task mode. Possible values: * {@link ActivityManager#LOCK_TASK_MODE_NONE}, {@link ActivityManager#LOCK_TASK_MODE_LOCKED}, * {@link ActivityManager#LOCK_TASK_MODE_PINNED} @@ -282,8 +290,7 @@ public final class ActivityStackSupervisor implements DisplayListener { */ private LockTaskNotify mLockTaskNotify; - final ArrayList<PendingActivityLaunch> mPendingActivityLaunches - = new ArrayList<PendingActivityLaunch>(); + final ArrayList<PendingActivityLaunch> mPendingActivityLaunches = new ArrayList<>(); /** Used to keep resumeTopActivityLocked() from being entered recursively */ boolean inResumeTopActivity; @@ -796,7 +803,7 @@ public final class ActivityStackSupervisor implements DisplayListener { ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { final ActivityStack stack = stacks.get(stackNdx); - ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<RunningTaskInfo>(); + ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<>(); runningTaskLists.add(stackTaskList); stack.getTasksLocked(stackTaskList, callingUid, allowed); } @@ -894,8 +901,8 @@ public final class ActivityStackSupervisor implements DisplayListener { intent = new Intent(intent); // Collect information about the target of the Intent. - ActivityInfo aInfo = resolveActivity(intent, resolvedType, startFlags, - profilerInfo, userId); + ActivityInfo aInfo = + resolveActivity(intent, resolvedType, startFlags, profilerInfo, userId); ActivityContainer container = (ActivityContainer)iContainer; synchronized (mService) { @@ -1170,7 +1177,12 @@ public final class ActivityStackSupervisor implements DisplayListener { mService.updateLruProcessLocked(app, true, null); mService.updateOomAdjLocked(); - final ActivityStack stack = r.task.stack; + final TaskRecord task = r.task; + if (task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) { + setLockTaskModeLocked(task, LOCK_TASK_MODE_LOCKED, "lockTaskLaunchMode attribute"); + } + + final ActivityStack stack = task.stack; try { if (app.thread == null) { throw new RemoteException(); @@ -1187,11 +1199,11 @@ public final class ActivityStackSupervisor implements DisplayListener { if (andResume) { EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, r.userId, System.identityHashCode(r), - r.task.taskId, r.shortComponentName); + task.taskId, r.shortComponentName); } if (r.isHomeActivity() && r.isNotResolverActivity()) { // Home process is the root process of the task. - mService.mHomeProcess = r.task.mActivities.get(0).app; + mService.mHomeProcess = task.mActivities.get(0).app; } mService.ensurePackageDexOpt(r.intent.getComponent().getPackageName()); r.sleeping = false; @@ -1233,7 +1245,7 @@ public final class ActivityStackSupervisor implements DisplayListener { app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken, System.identityHashCode(r), r.info, new Configuration(mService.mConfiguration), new Configuration(stack.mOverrideConfig), r.compat, r.launchedFromPackage, - r.task.voiceInteractor, app.repProcState, r.icicle, r.persistentState, results, + task.voiceInteractor, app.repProcState, r.icicle, r.persistentState, results, newIntents, !andResume, mService.isNextTransitionForward(), profilerInfo); if ((app.info.privateFlags&ApplicationInfo.PRIVATE_FLAG_CANT_SAVE_STATE) != 0) { @@ -1946,7 +1958,7 @@ public final class ActivityStackSupervisor implements DisplayListener { if ((launchFlags&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { intentActivity = targetStack.resetTaskIfNeededLocked(intentActivity, r); } - if ((startFlags&ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { + if ((startFlags & ActivityManager.START_FLAG_ONLY_IF_NEEDED) != 0) { // We don't need to start a new activity, and // the client said not to do anything if that // is the case, so this is it! And for paranoia, make @@ -1964,8 +1976,7 @@ public final class ActivityStackSupervisor implements DisplayListener { } return ActivityManager.START_RETURN_INTENT_TO_CALLER; } - if ((launchFlags & - (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK)) + if ((launchFlags & (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK)) == (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK)) { // The caller has requested to completely replace any // existing task with its new activity. Well that should @@ -2128,10 +2139,6 @@ public final class ActivityStackSupervisor implements DisplayListener { // Should this be considered a new task? if (r.resultTo == null && inTask == null && !addingToTask && (launchFlags & Intent.FLAG_ACTIVITY_NEW_TASK) != 0) { - if (isLockTaskModeViolation(reuseTask)) { - Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); - return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; - } newTask = true; targetStack = computeStackFocus(r, newTask); targetStack.moveToFront("startingNewTask"); @@ -2147,6 +2154,10 @@ public final class ActivityStackSupervisor implements DisplayListener { } else { r.setTask(reuseTask, taskToAffiliate); } + if (isLockTaskModeViolation(r.task)) { + Slog.e(TAG, "Attempted Lock Task Mode violation r=" + r); + return ActivityManager.START_RETURN_LOCK_TASK_MODE_VIOLATION; + } if (!movedHome) { if ((launchFlags & (FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_TASK_ON_HOME)) @@ -3292,6 +3303,7 @@ public final class ActivityStackSupervisor implements DisplayListener { pw.print(prefix); pw.println("mCurTaskId=" + mCurTaskId); pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront); pw.print(prefix); pw.println("mActivityContainers=" + mActivityContainers); + pw.print(prefix); pw.println("mLockTaskModeTasks" + mLockTaskModeTasks); } ArrayList<ActivityRecord> getDumpActivitiesLocked(String name) { @@ -3592,6 +3604,32 @@ public final class ActivityStackSupervisor implements DisplayListener { return list; } + TaskRecord getLockedTaskLocked() { + final int top = mLockTaskModeTasks.size() - 1; + if (top >= 0) { + return mLockTaskModeTasks.get(top); + } + return null; + } + + boolean isLockedTask(TaskRecord task) { + return mLockTaskModeTasks.contains(task); + } + + boolean isLastLockedTask(TaskRecord task) { + return mLockTaskModeTasks.size() == 1 && mLockTaskModeTasks.contains(task); + } + + void removeLockedTaskLocked(final TaskRecord task) { + if (mLockTaskModeTasks.remove(task) && mLockTaskModeTasks.isEmpty()) { + // Last one. + final Message lockTaskMsg = Message.obtain(); + lockTaskMsg.arg1 = task.userId; + lockTaskMsg.what = LOCK_TASK_END_MSG; + mHandler.sendMessage(lockTaskMsg); + } + } + void showLockTaskToast() { mLockTaskNotify.showToast(mLockTaskModeState); } @@ -3599,42 +3637,93 @@ public final class ActivityStackSupervisor implements DisplayListener { void setLockTaskModeLocked(TaskRecord task, int lockTaskModeState, String reason) { if (task == null) { // Take out of lock task mode if necessary - if (mLockTaskModeTask != null) { - final Message lockTaskMsg = Message.obtain(); - lockTaskMsg.arg1 = mLockTaskModeTask.userId; - lockTaskMsg.what = LOCK_TASK_END_MSG; - mLockTaskModeTask = null; - mHandler.sendMessage(lockTaskMsg); + final TaskRecord lockedTask = getLockedTaskLocked(); + if (lockedTask != null) { + removeLockedTaskLocked(lockedTask); + if (!mLockTaskModeTasks.isEmpty()) { + // There are locked tasks remaining, can only finish this task, not unlock it. + lockedTask.performClearTaskLocked(); + resumeTopActivitiesLocked(); + return; + } } return; } + + // Should have already been checked, but do it again. + if (task.mLockTaskAuth == LOCK_TASK_AUTH_DONT_LOCK) { + return; + } if (isLockTaskModeViolation(task)) { - Slog.e(TAG, "setLockTaskMode: Attempt to start a second Lock Task Mode task."); + Slog.e(TAG, "setLockTaskMode: Attempt to start an unauthorized lock task."); return; } - mLockTaskModeTask = task; + + if (mLockTaskModeTasks.isEmpty()) { + // First locktask. + final Message lockTaskMsg = Message.obtain(); + lockTaskMsg.obj = task.intent.getComponent().getPackageName(); + lockTaskMsg.arg1 = task.userId; + lockTaskMsg.what = LOCK_TASK_START_MSG; + lockTaskMsg.arg2 = lockTaskModeState; + mHandler.sendMessage(lockTaskMsg); + } + // Add it or move it to the top. + mLockTaskModeTasks.remove(task); + mLockTaskModeTasks.add(task); + + if (task.mLockTaskUid == -1) { + task.mLockTaskUid = task.mCallingUid; + } findTaskToMoveToFrontLocked(task, 0, null, reason); resumeTopActivitiesLocked(); - - final Message lockTaskMsg = Message.obtain(); - lockTaskMsg.obj = mLockTaskModeTask.intent.getComponent().getPackageName(); - lockTaskMsg.arg1 = mLockTaskModeTask.userId; - lockTaskMsg.what = LOCK_TASK_START_MSG; - lockTaskMsg.arg2 = lockTaskModeState; - mHandler.sendMessage(lockTaskMsg); } boolean isLockTaskModeViolation(TaskRecord task) { - return mLockTaskModeTask != null && mLockTaskModeTask != task; + if (getLockedTaskLocked() == task) { + return false; + } + final int lockTaskAuth = task.mLockTaskAuth; + switch (lockTaskAuth) { + case LOCK_TASK_AUTH_DONT_LOCK: + return !mLockTaskModeTasks.isEmpty(); + case LOCK_TASK_AUTH_LAUNCHABLE: + case LOCK_TASK_AUTH_WHITELISTED: + return false; + case LOCK_TASK_AUTH_PINNABLE: + // Pinnable tasks can't be launched on top of locktask tasks. + return !mLockTaskModeTasks.isEmpty(); + default: + Slog.w(TAG, "isLockTaskModeViolation: invalid lockTaskAuth value=" + lockTaskAuth); + return true; + } } - void endLockTaskModeIfTaskEnding(TaskRecord task) { - if (mLockTaskModeTask != null && mLockTaskModeTask == task) { - final Message lockTaskMsg = Message.obtain(); - lockTaskMsg.arg1 = mLockTaskModeTask.userId; - lockTaskMsg.what = LOCK_TASK_END_MSG; - mLockTaskModeTask = null; - mHandler.sendMessage(lockTaskMsg); + void onLockTaskPackagesUpdatedLocked() { + boolean didSomething = false; + for (int taskNdx = mLockTaskModeTasks.size() - 1; taskNdx >= 0; --taskNdx) { + final TaskRecord lockedTask = mLockTaskModeTasks.get(taskNdx); + if (lockedTask.mLockTaskMode != LOCK_TASK_LAUNCH_MODE_IF_WHITELISTED) { + continue; + } + final boolean wasLaunchable = lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE; + lockedTask.setLockTaskAuth(); + if (wasLaunchable && lockedTask.mLockTaskAuth != LOCK_TASK_AUTH_LAUNCHABLE) { + // Lost whitelisting authorization. End it now. + removeLockedTaskLocked(lockedTask); + lockedTask.performClearTaskLocked(); + didSomething = true; + } + } + for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) { + ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks; + for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { + final ActivityStack stack = stacks.get(stackNdx); + stack.onLockTaskPackagesUpdatedLocked(); + } + } + if (didSomething) { + resumeTopActivitiesLocked(); } } @@ -3734,11 +3823,10 @@ public final class ActivityStackSupervisor implements DisplayListener { mLockTaskModeState = msg.arg2; if (getStatusBarService() != null) { int flags = 0; - if (mLockTaskModeState == ActivityManager.LOCK_TASK_MODE_LOCKED) { + if (mLockTaskModeState == LOCK_TASK_MODE_LOCKED) { flags = StatusBarManager.DISABLE_MASK & (~StatusBarManager.DISABLE_BACK); - } else if (mLockTaskModeState == - ActivityManager.LOCK_TASK_MODE_PINNED) { + } else if (mLockTaskModeState == LOCK_TASK_MODE_PINNED) { flags = StatusBarManager.DISABLE_MASK & (~StatusBarManager.DISABLE_BACK) & (~StatusBarManager.DISABLE_HOME) @@ -3776,8 +3864,7 @@ public final class ActivityStackSupervisor implements DisplayListener { boolean shouldLockKeyguard = Settings.Secure.getInt( mService.mContext.getContentResolver(), Settings.Secure.LOCK_TO_APP_EXIT_LOCKED) != 0; - if (mLockTaskModeState == ActivityManager.LOCK_TASK_MODE_PINNED && - shouldLockKeyguard) { + if (mLockTaskModeState == LOCK_TASK_MODE_PINNED && shouldLockKeyguard) { mWindowManager.lockNow(null); mWindowManager.dismissKeyguard(); new LockPatternUtils(mService.mContext) @@ -3789,7 +3876,7 @@ public final class ActivityStackSupervisor implements DisplayListener { } catch (RemoteException ex) { throw new RuntimeException(ex); } finally { - mLockTaskModeState = ActivityManager.LOCK_TASK_MODE_NONE; + mLockTaskModeState = LOCK_TASK_MODE_NONE; } } break; case CONTAINER_CALLBACK_TASK_LIST_EMPTY: { |