| /* |
| * Copyright (C) 2023 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.wm.shell.recents; |
| |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME; |
| import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS; |
| import static android.view.WindowManager.TRANSIT_CHANGE; |
| import static android.view.WindowManager.TRANSIT_FLAG_KEYGUARD_LOCKED; |
| import static android.view.WindowManager.TRANSIT_SLEEP; |
| import static android.view.WindowManager.TRANSIT_TO_FRONT; |
| |
| import android.annotation.Nullable; |
| import android.annotation.SuppressLint; |
| import android.app.ActivityManager; |
| import android.app.ActivityTaskManager; |
| import android.app.IApplicationThread; |
| import android.app.PendingIntent; |
| import android.content.Intent; |
| import android.graphics.Rect; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.ArrayMap; |
| import android.util.Slog; |
| import android.view.Display; |
| import android.view.IRecentsAnimationController; |
| import android.view.IRecentsAnimationRunner; |
| import android.view.RemoteAnimationTarget; |
| import android.view.SurfaceControl; |
| import android.window.PictureInPictureSurfaceTransaction; |
| import android.window.TaskSnapshot; |
| import android.window.TransitionInfo; |
| import android.window.TransitionRequestInfo; |
| import android.window.WindowContainerToken; |
| import android.window.WindowContainerTransaction; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.protolog.common.ProtoLog; |
| import com.android.wm.shell.common.ShellExecutor; |
| import com.android.wm.shell.protolog.ShellProtoLogGroup; |
| import com.android.wm.shell.sysui.ShellInit; |
| import com.android.wm.shell.transition.Transitions; |
| import com.android.wm.shell.util.TransitionUtil; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Handles the Recents (overview) animation. Only one of these can run at a time. A recents |
| * transition must be created via {@link #startRecentsTransition}. Anything else will be ignored. |
| */ |
| public class RecentsTransitionHandler implements Transitions.TransitionHandler { |
| private static final String TAG = "RecentsTransitionHandler"; |
| |
| private final Transitions mTransitions; |
| private final ShellExecutor mExecutor; |
| private IApplicationThread mAnimApp = null; |
| private final ArrayList<RecentsController> mControllers = new ArrayList<>(); |
| |
| /** |
| * List of other handlers which might need to mix recents with other things. These are checked |
| * in the order they are added. Ideally there should only be one. |
| */ |
| private final ArrayList<RecentsMixedHandler> mMixers = new ArrayList<>(); |
| |
| public RecentsTransitionHandler(ShellInit shellInit, Transitions transitions, |
| @Nullable RecentTasksController recentTasksController) { |
| mTransitions = transitions; |
| mExecutor = transitions.getMainExecutor(); |
| if (!Transitions.ENABLE_SHELL_TRANSITIONS) return; |
| if (recentTasksController == null) return; |
| shellInit.addInitCallback(() -> { |
| recentTasksController.setTransitionHandler(this); |
| transitions.addHandler(this); |
| }, this); |
| } |
| |
| /** Register a mixer handler. {@see RecentsMixedHandler}*/ |
| public void addMixer(RecentsMixedHandler mixer) { |
| mMixers.add(mixer); |
| } |
| |
| /** Unregister a Mixed Handler */ |
| public void removeMixer(RecentsMixedHandler mixer) { |
| mMixers.remove(mixer); |
| } |
| |
| @VisibleForTesting |
| public IBinder startRecentsTransition(PendingIntent intent, Intent fillIn, Bundle options, |
| IApplicationThread appThread, IRecentsAnimationRunner listener) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "RecentsTransitionHandler.startRecentsTransition"); |
| |
| // only care about latest one. |
| mAnimApp = appThread; |
| WindowContainerTransaction wct = new WindowContainerTransaction(); |
| wct.sendPendingIntent(intent, fillIn, options); |
| final RecentsController controller = new RecentsController(listener); |
| RecentsMixedHandler mixer = null; |
| Transitions.TransitionHandler mixedHandler = null; |
| for (int i = 0; i < mMixers.size(); ++i) { |
| mixedHandler = mMixers.get(i).handleRecentsRequest(wct); |
| if (mixedHandler != null) { |
| mixer = mMixers.get(i); |
| break; |
| } |
| } |
| final IBinder transition = mTransitions.startTransition(TRANSIT_TO_FRONT, wct, |
| mixedHandler == null ? this : mixedHandler); |
| if (mixer != null) { |
| mixer.setRecentsTransition(transition); |
| } |
| if (transition != null) { |
| controller.setTransition(transition); |
| mControllers.add(controller); |
| } else { |
| controller.cancel("startRecentsTransition"); |
| } |
| return transition; |
| } |
| |
| @Override |
| public WindowContainerTransaction handleRequest(IBinder transition, |
| TransitionRequestInfo request) { |
| // do not directly handle requests. Only entry point should be via startRecentsTransition |
| // TODO: Only log an error if the transition is a recents transition |
| return null; |
| } |
| |
| private int findController(IBinder transition) { |
| for (int i = mControllers.size() - 1; i >= 0; --i) { |
| if (mControllers.get(i).mTransition == transition) return i; |
| } |
| return -1; |
| } |
| |
| @Override |
| public boolean startAnimation(IBinder transition, TransitionInfo info, |
| SurfaceControl.Transaction startTransaction, |
| SurfaceControl.Transaction finishTransaction, |
| Transitions.TransitionFinishCallback finishCallback) { |
| final int controllerIdx = findController(transition); |
| if (controllerIdx < 0) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "RecentsTransitionHandler.startAnimation: no controller found"); |
| return false; |
| } |
| final RecentsController controller = mControllers.get(controllerIdx); |
| Transitions.setRunningRemoteTransitionDelegate(mAnimApp); |
| mAnimApp = null; |
| if (!controller.start(info, startTransaction, finishTransaction, finishCallback)) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "RecentsTransitionHandler.startAnimation: failed to start animation"); |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public void mergeAnimation(IBinder transition, TransitionInfo info, |
| SurfaceControl.Transaction t, IBinder mergeTarget, |
| Transitions.TransitionFinishCallback finishCallback) { |
| final int targetIdx = findController(mergeTarget); |
| if (targetIdx < 0) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "RecentsTransitionHandler.mergeAnimation: no controller found"); |
| return; |
| } |
| final RecentsController controller = mControllers.get(targetIdx); |
| controller.merge(info, t, finishCallback); |
| } |
| |
| @Override |
| public void onTransitionConsumed(IBinder transition, boolean aborted, |
| SurfaceControl.Transaction finishTransaction) { |
| // Only one recents transition can be handled at a time, but currently the first transition |
| // will trigger a no-op in the second transition which holds the active recents animation |
| // runner on the launcher side. For now, cancel all existing animations to ensure we |
| // don't get into a broken state with an orphaned animation runner, and later we can try to |
| // merge the latest transition into the currently running one |
| for (int i = mControllers.size() - 1; i >= 0; i--) { |
| mControllers.get(i).cancel("onTransitionConsumed"); |
| } |
| } |
| |
| /** There is only one of these and it gets reset on finish. */ |
| private class RecentsController extends IRecentsAnimationController.Stub { |
| private final int mInstanceId; |
| |
| private IRecentsAnimationRunner mListener; |
| private IBinder.DeathRecipient mDeathHandler; |
| private Transitions.TransitionFinishCallback mFinishCB = null; |
| private SurfaceControl.Transaction mFinishTransaction = null; |
| |
| /** |
| * List of tasks that we are switching away from via this transition. Upon finish, these |
| * pausing tasks will become invisible. |
| * These need to be ordered since the order must be restored if there is no task-switch. |
| */ |
| private ArrayList<TaskState> mPausingTasks = null; |
| |
| /** |
| * List of tasks that we are switching to. Upon finish, these will remain visible and |
| * on top. |
| */ |
| private ArrayList<TaskState> mOpeningTasks = null; |
| |
| private WindowContainerToken mPipTask = null; |
| private WindowContainerToken mRecentsTask = null; |
| private int mRecentsTaskId = -1; |
| private TransitionInfo mInfo = null; |
| private boolean mOpeningSeparateHome = false; |
| private boolean mPausingSeparateHome = false; |
| private ArrayMap<SurfaceControl, SurfaceControl> mLeashMap = null; |
| private PictureInPictureSurfaceTransaction mPipTransaction = null; |
| private IBinder mTransition = null; |
| private boolean mKeyguardLocked = false; |
| private boolean mWillFinishToHome = false; |
| |
| /** The animation is idle, waiting for the user to choose a task to switch to. */ |
| private static final int STATE_NORMAL = 0; |
| |
| /** The user chose a new task to switch to and the animation is animating to it. */ |
| private static final int STATE_NEW_TASK = 1; |
| |
| /** The latest state that the recents animation is operating in. */ |
| private int mState = STATE_NORMAL; |
| |
| RecentsController(IRecentsAnimationRunner listener) { |
| mInstanceId = System.identityHashCode(this); |
| mListener = listener; |
| mDeathHandler = () -> { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.DeathRecipient: binder died", mInstanceId); |
| finish(mWillFinishToHome, false /* leaveHint */); |
| }; |
| try { |
| mListener.asBinder().linkToDeath(mDeathHandler, 0 /* flags */); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "RecentsController: failed to link to death", e); |
| mListener = null; |
| } |
| } |
| |
| void setTransition(IBinder transition) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.setTransition: id=%s", mInstanceId, transition); |
| mTransition = transition; |
| } |
| |
| void cancel(String reason) { |
| // restoring (to-home = false) involves submitting more WM changes, so by default, use |
| // toHome = true when canceling. |
| cancel(true /* toHome */, reason); |
| } |
| |
| void cancel(boolean toHome, String reason) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.cancel: toHome=%b reason=%s", |
| mInstanceId, toHome, reason); |
| if (mListener != null) { |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.cancel: calling onAnimationCanceled", |
| mInstanceId); |
| mListener.onAnimationCanceled(null, null); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error canceling recents animation", e); |
| } |
| } |
| if (mFinishCB != null) { |
| finishInner(toHome, false /* userLeave */); |
| } else { |
| cleanUp(); |
| } |
| } |
| |
| /** |
| * Sends a cancel message to the recents animation with snapshots. Used to trigger a |
| * "replace-with-screenshot" like behavior. |
| */ |
| private boolean sendCancelWithSnapshots() { |
| int[] taskIds = null; |
| TaskSnapshot[] snapshots = null; |
| if (mPausingTasks.size() > 0) { |
| taskIds = new int[mPausingTasks.size()]; |
| snapshots = new TaskSnapshot[mPausingTasks.size()]; |
| try { |
| for (int i = 0; i < mPausingTasks.size(); ++i) { |
| snapshots[i] = ActivityTaskManager.getService().takeTaskSnapshot( |
| mPausingTasks.get(0).mTaskInfo.taskId); |
| } |
| } catch (RemoteException e) { |
| taskIds = null; |
| snapshots = null; |
| } |
| } |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.cancel: calling onAnimationCanceled with snapshots", |
| mInstanceId); |
| mListener.onAnimationCanceled(taskIds, snapshots); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error canceling recents animation", e); |
| return false; |
| } |
| return true; |
| } |
| |
| void cleanUp() { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.cleanup", mInstanceId); |
| if (mListener != null && mDeathHandler != null) { |
| mListener.asBinder().unlinkToDeath(mDeathHandler, 0 /* flags */); |
| mDeathHandler = null; |
| } |
| mListener = null; |
| mFinishCB = null; |
| // clean-up leash surfacecontrols and anything that might reference them. |
| if (mLeashMap != null) { |
| for (int i = 0; i < mLeashMap.size(); ++i) { |
| mLeashMap.valueAt(i).release(); |
| } |
| mLeashMap = null; |
| } |
| mFinishTransaction = null; |
| mPausingTasks = null; |
| mOpeningTasks = null; |
| mInfo = null; |
| mTransition = null; |
| mControllers.remove(this); |
| } |
| |
| boolean start(TransitionInfo info, SurfaceControl.Transaction t, |
| SurfaceControl.Transaction finishT, Transitions.TransitionFinishCallback finishCB) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.start", mInstanceId); |
| if (mListener == null || mTransition == null) { |
| cleanUp(); |
| return false; |
| } |
| // First see if this is a valid recents transition. |
| boolean hasPausingTasks = false; |
| for (int i = 0; i < info.getChanges().size(); ++i) { |
| final TransitionInfo.Change change = info.getChanges().get(i); |
| if (TransitionUtil.isWallpaper(change)) continue; |
| if (TransitionUtil.isClosingType(change.getMode())) { |
| hasPausingTasks = true; |
| continue; |
| } |
| final ActivityManager.RunningTaskInfo taskInfo = change.getTaskInfo(); |
| if (taskInfo != null && taskInfo.topActivityType == ACTIVITY_TYPE_RECENTS) { |
| mRecentsTask = taskInfo.token; |
| mRecentsTaskId = taskInfo.taskId; |
| } else if (taskInfo != null && taskInfo.topActivityType == ACTIVITY_TYPE_HOME) { |
| mRecentsTask = taskInfo.token; |
| mRecentsTaskId = taskInfo.taskId; |
| } |
| } |
| if (mRecentsTask == null && !hasPausingTasks) { |
| // Recents is already running apparently, so this is a no-op. |
| Slog.e(TAG, "Tried to start recents while it is already running."); |
| cleanUp(); |
| return false; |
| } |
| |
| mInfo = info; |
| mFinishCB = finishCB; |
| mFinishTransaction = finishT; |
| mPausingTasks = new ArrayList<>(); |
| mOpeningTasks = new ArrayList<>(); |
| mLeashMap = new ArrayMap<>(); |
| mKeyguardLocked = (info.getFlags() & TRANSIT_FLAG_KEYGUARD_LOCKED) != 0; |
| |
| final ArrayList<RemoteAnimationTarget> apps = new ArrayList<>(); |
| final ArrayList<RemoteAnimationTarget> wallpapers = new ArrayList<>(); |
| TransitionUtil.LeafTaskFilter leafTaskFilter = new TransitionUtil.LeafTaskFilter(); |
| // About layering: we divide up the "layer space" into 3 regions (each the size of |
| // the change count). This lets us categorize things into above/below/between |
| // while maintaining their relative ordering. |
| for (int i = 0; i < info.getChanges().size(); ++i) { |
| final TransitionInfo.Change change = info.getChanges().get(i); |
| final ActivityManager.RunningTaskInfo taskInfo = change.getTaskInfo(); |
| if (TransitionUtil.isWallpaper(change)) { |
| final RemoteAnimationTarget target = TransitionUtil.newTarget(change, |
| // wallpapers go into the "below" layer space |
| info.getChanges().size() - i, info, t, mLeashMap); |
| wallpapers.add(target); |
| // Make all the wallpapers opaque since we want them visible from the start |
| t.setAlpha(target.leash, 1); |
| } else if (leafTaskFilter.test(change)) { |
| // start by putting everything into the "below" layer space. |
| final RemoteAnimationTarget target = TransitionUtil.newTarget(change, |
| info.getChanges().size() - i, info, t, mLeashMap); |
| apps.add(target); |
| if (TransitionUtil.isClosingType(change.getMode())) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " adding pausing taskId=%d", taskInfo.taskId); |
| // raise closing (pausing) task to "above" layer so it isn't covered |
| t.setLayer(target.leash, info.getChanges().size() * 3 - i); |
| mPausingTasks.add(new TaskState(change, target.leash)); |
| if (taskInfo.topActivityType == ACTIVITY_TYPE_HOME) { |
| // This can only happen if we have a separate recents/home (3p launcher) |
| mPausingSeparateHome = true; |
| } |
| if (taskInfo.pictureInPictureParams != null |
| && taskInfo.pictureInPictureParams.isAutoEnterEnabled()) { |
| mPipTask = taskInfo.token; |
| } |
| } else if (taskInfo != null |
| && taskInfo.topActivityType == ACTIVITY_TYPE_RECENTS) { |
| // There's a 3p launcher, so make sure recents goes above that. |
| t.setLayer(target.leash, info.getChanges().size() * 3 - i); |
| } else if (taskInfo != null && taskInfo.topActivityType == ACTIVITY_TYPE_HOME) { |
| // do nothing |
| } else if (TransitionUtil.isOpeningType(change.getMode())) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " adding opening taskId=%d", taskInfo.taskId); |
| mOpeningTasks.add(new TaskState(change, target.leash)); |
| } |
| } else if (TransitionUtil.isDividerBar(change)) { |
| final RemoteAnimationTarget target = TransitionUtil.newTarget(change, |
| info.getChanges().size() - i, info, t, mLeashMap); |
| // Add this as a app and we will separate them on launcher side by window type. |
| apps.add(target); |
| } |
| } |
| t.apply(); |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.start: calling onAnimationStart", mInstanceId); |
| mListener.onAnimationStart(this, |
| apps.toArray(new RemoteAnimationTarget[apps.size()]), |
| wallpapers.toArray(new RemoteAnimationTarget[wallpapers.size()]), |
| new Rect(0, 0, 0, 0), new Rect()); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error starting recents animation", e); |
| cancel("onAnimationStart() failed"); |
| } |
| return true; |
| } |
| |
| @SuppressLint("NewApi") |
| void merge(TransitionInfo info, SurfaceControl.Transaction t, |
| Transitions.TransitionFinishCallback finishCallback) { |
| if (mFinishCB == null) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.merge: skip, no finish callback", |
| mInstanceId); |
| // This was no-op'd (likely a repeated start) and we've already sent finish. |
| return; |
| } |
| if (info.getType() == TRANSIT_SLEEP) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.merge: transit_sleep", mInstanceId); |
| // A sleep event means we need to stop animations immediately, so cancel here. |
| cancel("transit_sleep"); |
| return; |
| } |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.merge", mInstanceId); |
| ArrayList<TransitionInfo.Change> openingTasks = null; |
| ArrayList<TransitionInfo.Change> closingTasks = null; |
| mOpeningSeparateHome = false; |
| TransitionInfo.Change recentsOpening = null; |
| boolean foundRecentsClosing = false; |
| boolean hasChangingApp = false; |
| final TransitionUtil.LeafTaskFilter leafTaskFilter = |
| new TransitionUtil.LeafTaskFilter(); |
| boolean hasTaskChange = false; |
| for (int i = 0; i < info.getChanges().size(); ++i) { |
| final TransitionInfo.Change change = info.getChanges().get(i); |
| final ActivityManager.RunningTaskInfo taskInfo = change.getTaskInfo(); |
| if (taskInfo != null |
| && taskInfo.configuration.windowConfiguration.isAlwaysOnTop()) { |
| // Tasks that are always on top (e.g. bubbles), will handle their own transition |
| // as they are on top of everything else. So cancel the merge here. |
| cancel("task #" + taskInfo.taskId + " is always_on_top"); |
| return; |
| } |
| hasTaskChange = hasTaskChange || taskInfo != null; |
| final boolean isLeafTask = leafTaskFilter.test(change); |
| if (TransitionUtil.isOpeningType(change.getMode())) { |
| if (mRecentsTask != null && mRecentsTask.equals(change.getContainer())) { |
| recentsOpening = change; |
| } else if (isLeafTask) { |
| if (taskInfo.topActivityType == ACTIVITY_TYPE_HOME) { |
| // This is usually a 3p launcher |
| mOpeningSeparateHome = true; |
| } |
| if (openingTasks == null) { |
| openingTasks = new ArrayList<>(); |
| } |
| openingTasks.add(change); |
| } |
| } else if (TransitionUtil.isClosingType(change.getMode())) { |
| if (mRecentsTask != null && mRecentsTask.equals(change.getContainer())) { |
| foundRecentsClosing = true; |
| } else if (isLeafTask) { |
| if (closingTasks == null) { |
| closingTasks = new ArrayList<>(); |
| } |
| closingTasks.add(change); |
| } |
| } else if (change.getMode() == TRANSIT_CHANGE) { |
| // Finish recents animation if the display is changed, so the default |
| // transition handler can play the animation such as rotation effect. |
| if (change.hasFlags(TransitionInfo.FLAG_IS_DISPLAY)) { |
| cancel(mWillFinishToHome, "display change"); |
| return; |
| } |
| // Don't consider order-only changes as changing apps. |
| if (!TransitionUtil.isOrderOnly(change)) { |
| hasChangingApp = true; |
| } |
| } |
| } |
| if (hasChangingApp && foundRecentsClosing) { |
| // This happens when a visible app is expanding (usually PiP). In this case, |
| // that transition probably has a special-purpose animation, so finish recents |
| // now and let it do its animation (since recents is going to be occluded). |
| sendCancelWithSnapshots(); |
| mExecutor.executeDelayed( |
| () -> finishInner(true /* toHome */, false /* userLeaveHint */), 0); |
| return; |
| } |
| if (recentsOpening != null) { |
| // the recents task re-appeared. This happens if the user gestures before the |
| // task-switch (NEW_TASK) animation finishes. |
| if (mState == STATE_NORMAL) { |
| Slog.e(TAG, "Returning to recents while recents is already idle."); |
| } |
| if (closingTasks == null || closingTasks.size() == 0) { |
| Slog.e(TAG, "Returning to recents without closing any opening tasks."); |
| } |
| // Setup may hide it initially since it doesn't know that overview was still active. |
| t.show(recentsOpening.getLeash()); |
| t.setAlpha(recentsOpening.getLeash(), 1.f); |
| mState = STATE_NORMAL; |
| } |
| boolean didMergeThings = false; |
| if (closingTasks != null) { |
| // Potentially cancelling a task-switch. Move the tasks back to mPausing if they |
| // are in mOpening. |
| for (int i = 0; i < closingTasks.size(); ++i) { |
| final TransitionInfo.Change change = closingTasks.get(i); |
| final int pausingIdx = TaskState.indexOf(mPausingTasks, change); |
| if (pausingIdx >= 0) { |
| mPausingTasks.remove(pausingIdx); |
| didMergeThings = true; |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " closing pausing taskId=%d", change.getTaskInfo().taskId); |
| continue; |
| } |
| int openingIdx = TaskState.indexOf(mOpeningTasks, change); |
| if (openingIdx < 0) { |
| Slog.w(TAG, "Closing a task that wasn't opening, this may be split or" |
| + " something unexpected: " + change.getTaskInfo().taskId); |
| continue; |
| } |
| final TaskState openingTask = mOpeningTasks.remove(openingIdx); |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " pausing opening taskId=%d", openingTask.mTaskInfo.taskId); |
| mPausingTasks.add(openingTask); |
| didMergeThings = true; |
| } |
| } |
| RemoteAnimationTarget[] appearedTargets = null; |
| if (openingTasks != null && openingTasks.size() > 0) { |
| // Switching to some new tasks, add to mOpening and remove from mPausing. Also, |
| // enter NEW_TASK state since this will start the switch-to animation. |
| final int layer = mInfo.getChanges().size() * 3; |
| appearedTargets = new RemoteAnimationTarget[openingTasks.size()]; |
| for (int i = 0; i < openingTasks.size(); ++i) { |
| final TransitionInfo.Change change = openingTasks.get(i); |
| int pausingIdx = TaskState.indexOf(mPausingTasks, change); |
| if (pausingIdx >= 0) { |
| // Something is showing/opening a previously-pausing app. |
| appearedTargets[i] = TransitionUtil.newTarget( |
| change, layer, mPausingTasks.get(pausingIdx).mLeash); |
| final TaskState pausingTask = mPausingTasks.remove(pausingIdx); |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " opening pausing taskId=%d", pausingTask.mTaskInfo.taskId); |
| mOpeningTasks.add(pausingTask); |
| // Setup hides opening tasks initially, so make it visible again (since we |
| // are already showing it). |
| t.show(change.getLeash()); |
| t.setAlpha(change.getLeash(), 1.f); |
| } else { |
| // We are receiving new opening tasks, so convert to onTasksAppeared. |
| appearedTargets[i] = TransitionUtil.newTarget( |
| change, layer, info, t, mLeashMap); |
| // reparent into the original `mInfo` since that's where we are animating. |
| final int rootIdx = TransitionUtil.rootIndexFor(change, mInfo); |
| t.reparent(appearedTargets[i].leash, mInfo.getRoot(rootIdx).getLeash()); |
| t.setLayer(appearedTargets[i].leash, layer); |
| // Hide the animation leash, let listener show it. |
| t.hide(appearedTargets[i].leash); |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " opening new taskId=%d", appearedTargets[i].taskId); |
| mOpeningTasks.add(new TaskState(change, appearedTargets[i].leash)); |
| } |
| } |
| didMergeThings = true; |
| mState = STATE_NEW_TASK; |
| } |
| if (mPausingTasks.isEmpty()) { |
| // The pausing tasks may be removed by the incoming closing tasks. |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.merge: empty pausing tasks", mInstanceId); |
| } |
| if (!hasTaskChange) { |
| // Activity only transition, so consume the merge as it doesn't affect the rest of |
| // recents. |
| Slog.d(TAG, "Got an activity only transition during recents, so apply directly"); |
| mergeActivityOnly(info, t); |
| } else if (!didMergeThings) { |
| // Didn't recognize anything in incoming transition so don't merge it. |
| Slog.w(TAG, "Don't know how to merge this transition, foundRecentsClosing=" |
| + foundRecentsClosing); |
| if (foundRecentsClosing) { |
| mWillFinishToHome = false; |
| cancel(false /* toHome */, "didn't merge"); |
| } |
| return; |
| } |
| // At this point, we are accepting the merge. |
| t.apply(); |
| // not using the incoming anim-only surfaces |
| info.releaseAnimSurfaces(); |
| if (appearedTargets != null) { |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.merge: calling onTasksAppeared", mInstanceId); |
| mListener.onTasksAppeared(appearedTargets); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error sending appeared tasks to recents animation", e); |
| } |
| } |
| finishCallback.onTransitionFinished(null /* wct */, null /* wctCB */); |
| } |
| |
| /** For now, just set-up a jump-cut to the new activity. */ |
| private void mergeActivityOnly(TransitionInfo info, SurfaceControl.Transaction t) { |
| for (int i = 0; i < info.getChanges().size(); ++i) { |
| final TransitionInfo.Change change = info.getChanges().get(i); |
| if (TransitionUtil.isOpeningType(change.getMode())) { |
| t.show(change.getLeash()); |
| t.setAlpha(change.getLeash(), 1.f); |
| } else if (TransitionUtil.isClosingType(change.getMode())) { |
| t.hide(change.getLeash()); |
| } |
| } |
| } |
| |
| @Override |
| public TaskSnapshot screenshotTask(int taskId) { |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.screenshotTask: taskId=%d", mInstanceId, taskId); |
| return ActivityTaskManager.getService().takeTaskSnapshot(taskId); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to screenshot task", e); |
| } |
| return null; |
| } |
| |
| @Override |
| public void setInputConsumerEnabled(boolean enabled) { |
| mExecutor.execute(() -> { |
| if (mFinishCB == null || !enabled) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "RecentsController.setInputConsumerEnabled: skip, cb?=%b enabled?=%b", |
| mFinishCB != null, enabled); |
| return; |
| } |
| final int displayId = mInfo.getRootCount() > 0 ? mInfo.getRoot(0).getDisplayId() |
| : Display.DEFAULT_DISPLAY; |
| // transient launches don't receive focus automatically. Since we are taking over |
| // the gesture now, take focus explicitly. |
| // This also moves recents back to top if the user gestured before a switch |
| // animation finished. |
| try { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.setInputConsumerEnabled: set focus to recents", |
| mInstanceId); |
| ActivityTaskManager.getService().focusTopTask(displayId); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to set focused task", e); |
| } |
| }); |
| } |
| |
| @Override |
| public void setAnimationTargetsBehindSystemBars(boolean behindSystemBars) { |
| } |
| |
| @Override |
| public void setFinishTaskTransaction(int taskId, |
| PictureInPictureSurfaceTransaction finishTransaction, SurfaceControl overlay) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.setFinishTaskTransaction: taskId=%d", |
| mInstanceId, taskId); |
| mExecutor.execute(() -> { |
| if (mFinishCB == null) return; |
| mPipTransaction = finishTransaction; |
| }); |
| } |
| |
| @Override |
| @SuppressLint("NewApi") |
| public void finish(boolean toHome, boolean sendUserLeaveHint) { |
| mExecutor.execute(() -> finishInner(toHome, sendUserLeaveHint)); |
| } |
| |
| private void finishInner(boolean toHome, boolean sendUserLeaveHint) { |
| if (mFinishCB == null) { |
| Slog.e(TAG, "Duplicate call to finish"); |
| return; |
| } |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.finishInner: toHome=%b userLeave=%b " |
| + "willFinishToHome=%b state=%d", |
| mInstanceId, toHome, sendUserLeaveHint, mWillFinishToHome, mState); |
| final Transitions.TransitionFinishCallback finishCB = mFinishCB; |
| mFinishCB = null; |
| |
| final SurfaceControl.Transaction t = mFinishTransaction; |
| final WindowContainerTransaction wct = new WindowContainerTransaction(); |
| |
| if (mKeyguardLocked && mRecentsTask != null) { |
| if (toHome) wct.reorder(mRecentsTask, true /* toTop */); |
| else wct.restoreTransientOrder(mRecentsTask); |
| } |
| if (!toHome |
| // If a recents gesture starts on the 3p launcher, then the 3p launcher is the |
| // live tile (pausing app). If the gesture is "cancelled" we need to return to |
| // 3p launcher instead of "task-switching" away from it. |
| && (!mWillFinishToHome || mPausingSeparateHome) |
| && mPausingTasks != null && mState == STATE_NORMAL) { |
| if (mPausingSeparateHome) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " returning to 3p home"); |
| } else { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| " returning to app"); |
| } |
| // The gesture is returning to the pausing-task(s) rather than continuing with |
| // recents, so end the transition by moving the app back to the top (and also |
| // re-showing it's task). |
| for (int i = mPausingTasks.size() - 1; i >= 0; --i) { |
| // reverse order so that index 0 ends up on top |
| wct.reorder(mPausingTasks.get(i).mToken, true /* onTop */); |
| t.show(mPausingTasks.get(i).mTaskSurface); |
| } |
| if (!mKeyguardLocked && mRecentsTask != null) { |
| wct.restoreTransientOrder(mRecentsTask); |
| } |
| } else if (toHome && mOpeningSeparateHome && mPausingTasks != null) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, " 3p launching home"); |
| // Special situation where 3p launcher was changed during recents (this happens |
| // during tapltests...). Here we get both "return to home" AND "home opening". |
| // This is basically going home, but we have to restore the recents and home order. |
| for (int i = 0; i < mOpeningTasks.size(); ++i) { |
| final TaskState state = mOpeningTasks.get(i); |
| if (state.mTaskInfo.topActivityType == ACTIVITY_TYPE_HOME) { |
| // Make sure it is on top. |
| wct.reorder(state.mToken, true /* onTop */); |
| } |
| t.show(state.mTaskSurface); |
| } |
| for (int i = mPausingTasks.size() - 1; i >= 0; --i) { |
| t.hide(mPausingTasks.get(i).mTaskSurface); |
| } |
| if (!mKeyguardLocked && mRecentsTask != null) { |
| wct.restoreTransientOrder(mRecentsTask); |
| } |
| } else { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, " normal finish"); |
| // The general case: committing to recents, going home, or switching tasks. |
| for (int i = 0; i < mOpeningTasks.size(); ++i) { |
| t.show(mOpeningTasks.get(i).mTaskSurface); |
| } |
| for (int i = 0; i < mPausingTasks.size(); ++i) { |
| if (!sendUserLeaveHint) { |
| // This means recents is not *actually* finishing, so of course we gotta |
| // do special stuff in WMCore to accommodate. |
| wct.setDoNotPip(mPausingTasks.get(i).mToken); |
| } |
| // Since we will reparent out of the leashes, pre-emptively hide the child |
| // surface to match the leash. Otherwise, there will be a flicker before the |
| // visibility gets committed in Core when using split-screen (in splitscreen, |
| // the leaf-tasks are not "independent" so aren't hidden by normal setup). |
| t.hide(mPausingTasks.get(i).mTaskSurface); |
| } |
| if (mPipTask != null && mPipTransaction != null && sendUserLeaveHint) { |
| t.show(mInfo.getChange(mPipTask).getLeash()); |
| PictureInPictureSurfaceTransaction.apply(mPipTransaction, |
| mInfo.getChange(mPipTask).getLeash(), t); |
| mPipTask = null; |
| mPipTransaction = null; |
| } |
| } |
| cleanUp(); |
| finishCB.onTransitionFinished(wct.isEmpty() ? null : wct, null /* wctCB */); |
| } |
| |
| @Override |
| public void setDeferCancelUntilNextTransition(boolean defer, boolean screenshot) { |
| } |
| |
| @Override |
| public void cleanupScreenshot() { |
| } |
| |
| @Override |
| public void setWillFinishToHome(boolean willFinishToHome) { |
| mExecutor.execute(() -> { |
| mWillFinishToHome = willFinishToHome; |
| }); |
| } |
| |
| /** |
| * @see IRecentsAnimationController#removeTask |
| */ |
| @Override |
| public boolean removeTask(int taskId) { |
| return false; |
| } |
| |
| /** |
| * @see IRecentsAnimationController#detachNavigationBarFromApp |
| */ |
| @Override |
| public void detachNavigationBarFromApp(boolean moveHomeToTop) { |
| ProtoLog.v(ShellProtoLogGroup.WM_SHELL_RECENTS_TRANSITION, |
| "[%d] RecentsController.detachNavigationBarFromApp", mInstanceId); |
| mExecutor.execute(() -> { |
| if (mTransition == null) return; |
| try { |
| ActivityTaskManager.getService().detachNavigationBarFromApp(mTransition); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to detach the navigation bar from app", e); |
| } |
| }); |
| } |
| |
| /** |
| * @see IRecentsAnimationController#animateNavigationBarToApp(long) |
| */ |
| @Override |
| public void animateNavigationBarToApp(long duration) { |
| } |
| }; |
| |
| /** Utility class to track the state of a task as-seen by recents. */ |
| private static class TaskState { |
| WindowContainerToken mToken; |
| ActivityManager.RunningTaskInfo mTaskInfo; |
| |
| /** The surface/leash of the task provided by Core. */ |
| SurfaceControl mTaskSurface; |
| |
| /** The (local) animation-leash created for this task. */ |
| SurfaceControl mLeash; |
| |
| TaskState(TransitionInfo.Change change, SurfaceControl leash) { |
| mToken = change.getContainer(); |
| mTaskInfo = change.getTaskInfo(); |
| mTaskSurface = change.getLeash(); |
| mLeash = leash; |
| } |
| |
| static int indexOf(ArrayList<TaskState> list, TransitionInfo.Change change) { |
| for (int i = list.size() - 1; i >= 0; --i) { |
| if (list.get(i).mToken.equals(change.getContainer())) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| public String toString() { |
| return "" + mToken + " : " + mLeash; |
| } |
| } |
| |
| /** |
| * An interface for a mixed handler to receive information about recents requests (since these |
| * come into this handler directly vs from WMCore request). |
| */ |
| public interface RecentsMixedHandler { |
| /** |
| * Called when a recents request comes in. The handler can add operations to outWCT. If |
| * the handler wants to "accept" the transition, it should return itself; otherwise, it |
| * should return `null`. |
| * |
| * If a mixed-handler accepts this recents, it will be the de-facto handler for this |
| * transition and is required to call the associated {@link #startAnimation}, |
| * {@link #mergeAnimation}, and {@link #onTransitionConsumed} methods. |
| */ |
| Transitions.TransitionHandler handleRecentsRequest(WindowContainerTransaction outWCT); |
| |
| /** |
| * Reports the transition token associated with the accepted recents request. If there was |
| * a problem starting the request, this will be called with `null`. |
| */ |
| void setRecentsTransition(@Nullable IBinder transition); |
| } |
| } |
