| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.am; |
| |
| import static android.app.ActivityManager.START_TASK_TO_FRONT; |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME; |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS; |
| import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED; |
| import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; |
| import static android.content.Intent.FLAG_ACTIVITY_NO_ANIMATION; |
| import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER; |
| import static android.view.WindowManager.TRANSIT_NONE; |
| import static com.android.server.am.ActivityStackSupervisor.PRESERVE_WINDOWS; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_KEEP_IN_PLACE; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_MOVE_TO_ORIGINAL_POSITION; |
| import static com.android.server.wm.RecentsAnimationController.REORDER_MOVE_TO_TOP; |
| |
| import android.app.ActivityOptions; |
| import android.content.ComponentName; |
| import android.content.Intent; |
| import android.os.RemoteException; |
| import android.os.Trace; |
| import android.util.Slog; |
| import android.view.IRecentsAnimationRunner; |
| import com.android.server.wm.RecentsAnimationController; |
| import com.android.server.wm.RecentsAnimationController.RecentsAnimationCallbacks; |
| import com.android.server.wm.WindowManagerService; |
| |
| /** |
| * Manages the recents animation, including the reordering of the stacks for the transition and |
| * cleanup. See {@link com.android.server.wm.RecentsAnimationController}. |
| */ |
| class RecentsAnimation implements RecentsAnimationCallbacks { |
| private static final String TAG = RecentsAnimation.class.getSimpleName(); |
| // TODO (b/73188263): Reset debugging flags |
| private static final boolean DEBUG = true; |
| |
| private final ActivityManagerService mService; |
| private final ActivityStackSupervisor mStackSupervisor; |
| private final ActivityStartController mActivityStartController; |
| private final WindowManagerService mWindowManager; |
| private final UserController mUserController; |
| private final ActivityDisplay mDefaultDisplay; |
| private final int mCallingPid; |
| |
| private int mTargetActivityType; |
| |
| // The stack to restore the target stack behind when the animation is finished |
| private ActivityStack mRestoreTargetBehindStack; |
| |
| RecentsAnimation(ActivityManagerService am, ActivityStackSupervisor stackSupervisor, |
| ActivityStartController activityStartController, WindowManagerService wm, |
| UserController userController, int callingPid) { |
| mService = am; |
| mStackSupervisor = stackSupervisor; |
| mDefaultDisplay = stackSupervisor.getDefaultDisplay(); |
| mActivityStartController = activityStartController; |
| mWindowManager = wm; |
| mUserController = userController; |
| mCallingPid = callingPid; |
| } |
| |
| void startRecentsActivity(Intent intent, IRecentsAnimationRunner recentsAnimationRunner, |
| ComponentName recentsComponent, int recentsUid) { |
| if (DEBUG) Slog.d(TAG, "startRecentsActivity(): intent=" + intent); |
| Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "RecentsAnimation#startRecentsActivity"); |
| |
| if (!mWindowManager.canStartRecentsAnimation()) { |
| notifyAnimationCancelBeforeStart(recentsAnimationRunner); |
| if (DEBUG) Slog.d(TAG, "Can't start recents animation, nextAppTransition=" |
| + mWindowManager.getPendingAppTransition()); |
| return; |
| } |
| |
| // If the activity is associated with the recents stack, then try and get that first |
| mTargetActivityType = intent.getComponent() != null |
| && recentsComponent.equals(intent.getComponent()) |
| ? ACTIVITY_TYPE_RECENTS |
| : ACTIVITY_TYPE_HOME; |
| final ActivityStack targetStack = mDefaultDisplay.getStack(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType); |
| ActivityRecord targetActivity = targetStack != null |
| ? targetStack.getTopActivity() |
| : null; |
| final boolean hasExistingActivity = targetActivity != null; |
| if (hasExistingActivity) { |
| final ActivityDisplay display = targetActivity.getDisplay(); |
| mRestoreTargetBehindStack = display.getStackAbove(targetStack); |
| if (mRestoreTargetBehindStack == null) { |
| notifyAnimationCancelBeforeStart(recentsAnimationRunner); |
| if (DEBUG) Slog.d(TAG, "No stack above target stack=" + targetStack); |
| return; |
| } |
| } |
| |
| // Send launch hint if we are actually launching the target. If it's already visible |
| // (shouldn't happen in general) we don't need to send it. |
| if (targetActivity == null || !targetActivity.visible) { |
| mStackSupervisor.sendPowerHintForLaunchStartIfNeeded(true /* forceSend */, |
| targetActivity); |
| } |
| |
| mStackSupervisor.getActivityMetricsLogger().notifyActivityLaunching(); |
| |
| mService.setRunningRemoteAnimation(mCallingPid, true); |
| |
| mWindowManager.deferSurfaceLayout(); |
| try { |
| final ActivityDisplay display; |
| if (hasExistingActivity) { |
| // Move the recents activity into place for the animation if it is not top most |
| display = targetActivity.getDisplay(); |
| display.moveStackBehindBottomMostVisibleStack(targetStack); |
| if (DEBUG) Slog.d(TAG, "Moved stack=" + targetStack + " behind stack=" |
| + display.getStackAbove(targetStack)); |
| } else { |
| // No recents activity |
| ActivityOptions options = ActivityOptions.makeBasic(); |
| options.setLaunchActivityType(mTargetActivityType); |
| options.setAvoidMoveToFront(); |
| intent.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_NO_ANIMATION); |
| |
| mActivityStartController |
| .obtainStarter(intent, "startRecentsActivity_noTargetActivity") |
| .setCallingUid(recentsUid) |
| .setCallingPackage(recentsComponent.getPackageName()) |
| .setActivityOptions(SafeActivityOptions.fromBundle(options.toBundle())) |
| .setMayWait(mUserController.getCurrentUserId()) |
| .execute(); |
| mWindowManager.prepareAppTransition(TRANSIT_NONE, false); |
| |
| targetActivity = mDefaultDisplay.getStack(WINDOWING_MODE_UNDEFINED, |
| mTargetActivityType).getTopActivity(); |
| display = targetActivity.getDisplay(); |
| |
| // TODO: Maybe wait for app to draw in this particular case? |
| |
| if (DEBUG) Slog.d(TAG, "Started intent=" + intent); |
| } |
| |
| // Mark the target activity as launch-behind to bump its visibility for the |
| // duration of the gesture that is driven by the recents component |
| targetActivity.mLaunchTaskBehind = true; |
| |
| // Fetch all the surface controls and pass them to the client to get the animation |
| // started |
| mWindowManager.cancelRecentsAnimation(REORDER_MOVE_TO_ORIGINAL_POSITION, |
| "startRecentsActivity"); |
| mWindowManager.initializeRecentsAnimation(mTargetActivityType, recentsAnimationRunner, |
| this, display.mDisplayId, mStackSupervisor.mRecentTasks.getRecentTaskIds()); |
| |
| // If we updated the launch-behind state, update the visibility of the activities after |
| // we fetch the visible tasks to be controlled by the animation |
| mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, PRESERVE_WINDOWS); |
| |
| mStackSupervisor.getActivityMetricsLogger().notifyActivityLaunched(START_TASK_TO_FRONT, |
| targetActivity); |
| } catch (Exception e) { |
| Slog.e(TAG, "Failed to start recents activity", e); |
| throw e; |
| } finally { |
| mWindowManager.continueSurfaceLayout(); |
| Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); |
| } |
| } |
| |
| @Override |
| public void onAnimationFinished(@RecentsAnimationController.ReorderMode int reorderMode) { |
| synchronized (mService) { |
| if (DEBUG) Slog.d(TAG, "onAnimationFinished(): controller=" |
| + mWindowManager.getRecentsAnimationController() |
| + " reorderMode=" + reorderMode); |
| if (mWindowManager.getRecentsAnimationController() == null) return; |
| |
| // Just to be sure end the launch hint in case the target activity was never launched. |
| // However, if we're keeping the activity and making it visible, we can leave it on. |
| if (reorderMode != REORDER_KEEP_IN_PLACE) { |
| mStackSupervisor.sendPowerHintForLaunchEndIfNeeded(); |
| } |
| |
| mService.setRunningRemoteAnimation(mCallingPid, false); |
| |
| mWindowManager.inSurfaceTransaction(() -> { |
| Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, |
| "RecentsAnimation#onAnimationFinished_inSurfaceTransaction"); |
| mWindowManager.deferSurfaceLayout(); |
| try { |
| mWindowManager.cleanupRecentsAnimation(reorderMode); |
| |
| final ActivityStack targetStack = mDefaultDisplay.getStack( |
| WINDOWING_MODE_UNDEFINED, mTargetActivityType); |
| final ActivityRecord targetActivity = targetStack.getTopActivity(); |
| if (DEBUG) Slog.d(TAG, "onAnimationFinished(): targetStack=" + targetStack |
| + " targetActivity=" + targetActivity |
| + " mRestoreTargetBehindStack=" + mRestoreTargetBehindStack); |
| if (targetActivity == null) { |
| return; |
| } |
| |
| // Restore the launched-behind state |
| targetActivity.mLaunchTaskBehind = false; |
| |
| if (reorderMode == REORDER_MOVE_TO_TOP) { |
| // Bring the target stack to the front |
| mStackSupervisor.mNoAnimActivities.add(targetActivity); |
| targetStack.moveToFront("RecentsAnimation.onAnimationFinished()"); |
| if (DEBUG) { |
| final ActivityStack topStack = getTopNonAlwaysOnTopStack(); |
| if (topStack != targetStack) { |
| Slog.w(TAG, "Expected target stack=" + targetStack |
| + " to be top most but found stack=" + topStack); |
| } |
| } |
| } else if (reorderMode == REORDER_MOVE_TO_ORIGINAL_POSITION){ |
| // Restore the target stack to its previous position |
| final ActivityDisplay display = targetActivity.getDisplay(); |
| display.moveStackBehindStack(targetStack, mRestoreTargetBehindStack); |
| if (DEBUG) { |
| final ActivityStack aboveTargetStack = |
| mDefaultDisplay.getStackAbove(targetStack); |
| if (mRestoreTargetBehindStack != null |
| && aboveTargetStack != mRestoreTargetBehindStack) { |
| Slog.w(TAG, "Expected target stack=" + targetStack |
| + " to restored behind stack=" + mRestoreTargetBehindStack |
| + " but it is behind stack=" + aboveTargetStack); |
| } |
| } |
| } else { |
| // Keep target stack in place, nothing changes, so ignore the transition |
| // logic below |
| return; |
| } |
| |
| mWindowManager.prepareAppTransition(TRANSIT_NONE, false); |
| mStackSupervisor.ensureActivitiesVisibleLocked(null, 0, false); |
| mStackSupervisor.resumeFocusedStackTopActivityLocked(); |
| |
| // No reason to wait for the pausing activity in this case, as the hiding of |
| // surfaces needs to be done immediately. |
| mWindowManager.executeAppTransition(); |
| |
| // After reordering the stacks, reset the minimized state. At this point, either |
| // the target activity is now top-most and we will stay minimized (if in |
| // split-screen), or we will have returned to the app, and the minimized state |
| // should be reset |
| mWindowManager.checkSplitScreenMinimizedChanged(true /* animate */); |
| } catch (Exception e) { |
| Slog.e(TAG, "Failed to clean up recents activity", e); |
| throw e; |
| } finally { |
| mWindowManager.continueSurfaceLayout(); |
| Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER); |
| } |
| }); |
| } |
| } |
| |
| /** |
| * Called only when the animation should be canceled prior to starting. |
| */ |
| private void notifyAnimationCancelBeforeStart(IRecentsAnimationRunner recentsAnimationRunner) { |
| try { |
| recentsAnimationRunner.onAnimationCanceled(); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to cancel recents animation before start", e); |
| } |
| } |
| |
| /** |
| * @return The top stack that is not always-on-top. |
| */ |
| private ActivityStack getTopNonAlwaysOnTopStack() { |
| for (int i = mDefaultDisplay.getChildCount() - 1; i >= 0; i--) { |
| final ActivityStack s = mDefaultDisplay.getChildAt(i); |
| if (s.getWindowConfiguration().isAlwaysOnTop()) { |
| continue; |
| } |
| return s; |
| } |
| return null; |
| } |
| } |