/* * Copyright (C) 2022 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.transition; import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME; import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS; import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN; import static android.view.Display.DEFAULT_DISPLAY; import static android.view.WindowManager.TRANSIT_CHANGE; import static android.view.WindowManager.TRANSIT_PIP; import static android.window.TransitionInfo.FLAG_IN_TASK_WITH_EMBEDDED_ACTIVITY; import static com.android.wm.shell.shared.TransitionUtil.isOpeningType; import android.annotation.NonNull; import android.annotation.Nullable; import android.app.PendingIntent; import android.os.IBinder; import android.util.ArrayMap; import android.util.Pair; import android.view.SurfaceControl; import android.view.WindowManager; import android.window.TransitionInfo; import android.window.TransitionRequestInfo; import android.window.WindowContainerToken; import android.window.WindowContainerTransaction; import com.android.internal.protolog.common.ProtoLog; import com.android.wm.shell.ShellTaskOrganizer; import com.android.wm.shell.activityembedding.ActivityEmbeddingController; import com.android.wm.shell.common.split.SplitScreenUtils; import com.android.wm.shell.desktopmode.DesktopTasksController; import com.android.wm.shell.keyguard.KeyguardTransitionHandler; import com.android.wm.shell.pip.PipTransitionController; import com.android.wm.shell.protolog.ShellProtoLogGroup; import com.android.wm.shell.recents.RecentsTransitionHandler; import com.android.wm.shell.shared.TransitionUtil; import com.android.wm.shell.splitscreen.SplitScreenController; import com.android.wm.shell.splitscreen.StageCoordinator; import com.android.wm.shell.sysui.ShellInit; import com.android.wm.shell.unfold.UnfoldTransitionHandler; import java.util.ArrayList; import java.util.Map; import java.util.Optional; import java.util.function.Consumer; /** * A handler for dealing with transitions involving multiple other handlers. For example: an * activity in split-screen going into PiP. Note this is provided as a handset-specific * implementation of {@code MixedTransitionHandler}. */ public class DefaultMixedHandler implements MixedTransitionHandler, RecentsTransitionHandler.RecentsMixedHandler { private final Transitions mPlayer; private PipTransitionController mPipHandler; private RecentsTransitionHandler mRecentsHandler; private StageCoordinator mSplitHandler; private final KeyguardTransitionHandler mKeyguardHandler; private DesktopTasksController mDesktopTasksController; private UnfoldTransitionHandler mUnfoldHandler; private ActivityEmbeddingController mActivityEmbeddingController; abstract static class MixedTransition { /** Entering Pip from split, breaks split. */ static final int TYPE_ENTER_PIP_FROM_SPLIT = 1; /** Both the display and split-state (enter/exit) is changing */ static final int TYPE_DISPLAY_AND_SPLIT_CHANGE = 2; /** Pip was entered while handling an intent with its own remoteTransition. */ static final int TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE = 3; /** Recents transition while split-screen foreground. */ static final int TYPE_RECENTS_DURING_SPLIT = 4; /** Keyguard exit/occlude/unocclude transition. */ static final int TYPE_KEYGUARD = 5; /** Recents transition on top of the lock screen. */ static final int TYPE_RECENTS_DURING_KEYGUARD = 6; /** Recents Transition while in desktop mode. */ static final int TYPE_RECENTS_DURING_DESKTOP = 7; /** Fold/Unfold transition. */ static final int TYPE_UNFOLD = 8; /** Enter pip from one of the Activity Embedding windows. */ static final int TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING = 9; /** Entering Pip from split, but replace the Pip stage instead of breaking split. */ static final int TYPE_ENTER_PIP_REPLACE_FROM_SPLIT = 10; /** The display changes when pip is entering. */ static final int TYPE_ENTER_PIP_WITH_DISPLAY_CHANGE = 11; /** The default animation for this mixed transition. */ static final int ANIM_TYPE_DEFAULT = 0; /** For ENTER_PIP_FROM_SPLIT, indicates that this is a to-home animation. */ static final int ANIM_TYPE_GOING_HOME = 1; /** For RECENTS_DURING_SPLIT, is set when this turns into a pair->pair task switch. */ static final int ANIM_TYPE_PAIR_TO_PAIR = 1; final int mType; int mAnimType = ANIM_TYPE_DEFAULT; final IBinder mTransition; protected final Transitions mPlayer; protected final MixedTransitionHandler mMixedHandler; protected final PipTransitionController mPipHandler; protected final StageCoordinator mSplitHandler; protected final KeyguardTransitionHandler mKeyguardHandler; Transitions.TransitionHandler mLeftoversHandler = null; TransitionInfo mInfo = null; WindowContainerTransaction mFinishWCT = null; SurfaceControl.Transaction mFinishT = null; Transitions.TransitionFinishCallback mFinishCB = null; /** * Whether the transition has request for remote transition while mLeftoversHandler * isn't remote transition handler. * If true and the mLeftoversHandler can handle the transition, need to notify remote * transition handler to consume the transition. */ boolean mHasRequestToRemote; /** * Mixed transitions are made up of multiple "parts". This keeps track of how many * parts are currently animating. */ int mInFlightSubAnimations = 0; MixedTransition(int type, IBinder transition, Transitions player, MixedTransitionHandler mixedHandler, PipTransitionController pipHandler, StageCoordinator splitHandler, KeyguardTransitionHandler keyguardHandler) { mType = type; mTransition = transition; mPlayer = player; mMixedHandler = mixedHandler; mPipHandler = pipHandler; mSplitHandler = splitHandler; mKeyguardHandler = keyguardHandler; } abstract boolean startAnimation( @NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction startTransaction, @NonNull SurfaceControl.Transaction finishTransaction, @NonNull Transitions.TransitionFinishCallback finishCallback); abstract void mergeAnimation( @NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction t, @NonNull IBinder mergeTarget, @NonNull Transitions.TransitionFinishCallback finishCallback); abstract void onTransitionConsumed( @NonNull IBinder transition, boolean aborted, @Nullable SurfaceControl.Transaction finishT); protected boolean startSubAnimation( Transitions.TransitionHandler handler, TransitionInfo info, SurfaceControl.Transaction startT, SurfaceControl.Transaction finishT) { if (mInfo != null) { ProtoLog.d(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, "startSubAnimation #%d.%d", mInfo.getDebugId(), info.getDebugId()); } mInFlightSubAnimations++; if (!handler.startAnimation( mTransition, info, startT, finishT, wct -> onSubAnimationFinished(info, wct))) { mInFlightSubAnimations--; return false; } return true; } private void onSubAnimationFinished(TransitionInfo info, WindowContainerTransaction wct) { mInFlightSubAnimations--; if (mInfo != null) { ProtoLog.d(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, "onSubAnimationFinished #%d.%d remaining=%d", mInfo.getDebugId(), info.getDebugId(), mInFlightSubAnimations); } joinFinishArgs(wct); if (mInFlightSubAnimations == 0) { mFinishCB.onTransitionFinished(mFinishWCT); } } void joinFinishArgs(WindowContainerTransaction wct) { if (wct != null) { if (mFinishWCT == null) { mFinishWCT = wct; } else { mFinishWCT.merge(wct, true /* transfer */); } } } } private final ArrayList mActiveTransitions = new ArrayList<>(); public DefaultMixedHandler(@NonNull ShellInit shellInit, @NonNull Transitions player, Optional splitScreenControllerOptional, @Nullable PipTransitionController pipTransitionController, Optional recentsHandlerOptional, KeyguardTransitionHandler keyguardHandler, Optional desktopTasksControllerOptional, Optional unfoldHandler, Optional activityEmbeddingController) { mPlayer = player; mKeyguardHandler = keyguardHandler; if (Transitions.ENABLE_SHELL_TRANSITIONS && pipTransitionController != null && splitScreenControllerOptional.isPresent()) { // Add after dependencies because it is higher priority shellInit.addInitCallback(() -> { mPipHandler = pipTransitionController; pipTransitionController.setMixedHandler(this); mSplitHandler = splitScreenControllerOptional.get().getTransitionHandler(); mPlayer.addHandler(this); if (mSplitHandler != null) { mSplitHandler.setMixedHandler(this); } mRecentsHandler = recentsHandlerOptional.orElse(null); if (mRecentsHandler != null) { mRecentsHandler.addMixer(this); } mDesktopTasksController = desktopTasksControllerOptional.orElse(null); mUnfoldHandler = unfoldHandler.orElse(null); mActivityEmbeddingController = activityEmbeddingController.orElse(null); }, this); } } @Nullable @Override public WindowContainerTransaction handleRequest(@NonNull IBinder transition, @NonNull TransitionRequestInfo request) { if (mSplitHandler.requestImpliesSplitToPip(request)) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a PiP-enter request while " + "Split-Screen is active, so treat it as Mixed."); if (request.getRemoteTransition() != null) { throw new IllegalStateException("Unexpected remote transition in" + "pip-enter-from-split request"); } mActiveTransitions.add(createDefaultMixedTransition( MixedTransition.TYPE_ENTER_PIP_FROM_SPLIT, transition)); WindowContainerTransaction out = new WindowContainerTransaction(); mPipHandler.augmentRequest(transition, request, out); mSplitHandler.addEnterOrExitIfNeeded(request, out); return out; } else if (request.getType() == TRANSIT_PIP && (request.getFlags() & FLAG_IN_TASK_WITH_EMBEDDED_ACTIVITY) != 0 && ( mActivityEmbeddingController != null)) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a PiP-enter request from an Activity Embedding split"); mActiveTransitions.add(createDefaultMixedTransition( MixedTransition.TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING, transition)); // Postpone transition splitting to later. WindowContainerTransaction out = new WindowContainerTransaction(); return out; } else if (request.getRemoteTransition() != null && TransitionUtil.isOpeningType(request.getType()) && (request.getTriggerTask() == null || (request.getTriggerTask().topActivityType != ACTIVITY_TYPE_HOME && request.getTriggerTask().topActivityType != ACTIVITY_TYPE_RECENTS))) { // Only select transitions with an intent-provided remote-animation because that will // usually grab priority and often won't handle PiP. If there isn't an intent-provided // remote, then the transition will be dispatched normally and the PipHandler will // pick it up. Pair handler = mPlayer.dispatchRequest(transition, request, this); if (handler == null) { return null; } final MixedTransition mixed = createDefaultMixedTransition( MixedTransition.TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE, transition); mixed.mLeftoversHandler = handler.first; mActiveTransitions.add(mixed); if (mixed.mLeftoversHandler != mPlayer.getRemoteTransitionHandler()) { mixed.mHasRequestToRemote = true; mPlayer.getRemoteTransitionHandler().handleRequest(transition, request); } return handler.second; } else if (mSplitHandler.isSplitScreenVisible() && isOpeningType(request.getType()) && request.getTriggerTask() != null && request.getTriggerTask().getWindowingMode() == WINDOWING_MODE_FULLSCREEN && request.getTriggerTask().getActivityType() == ACTIVITY_TYPE_HOME) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a going-home request while " + "Split-Screen is foreground, so treat it as Mixed."); Pair handler = mPlayer.dispatchRequest(transition, request, this); if (handler == null) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Lean on the remote transition handler to fetch a proper remote via" + " TransitionFilter"); handler = new Pair<>( mPlayer.getRemoteTransitionHandler(), new WindowContainerTransaction()); } final MixedTransition mixed = createRecentsMixedTransition( MixedTransition.TYPE_RECENTS_DURING_SPLIT, transition); mixed.mLeftoversHandler = handler.first; mActiveTransitions.add(mixed); return handler.second; } else if (mUnfoldHandler != null && mUnfoldHandler.shouldPlayUnfoldAnimation(request)) { final WindowContainerTransaction wct = mUnfoldHandler.handleRequest(transition, request); if (wct != null) { mActiveTransitions.add(createDefaultMixedTransition( MixedTransition.TYPE_UNFOLD, transition)); } return wct; } return null; } private DefaultMixedTransition createDefaultMixedTransition(int type, IBinder transition) { return new DefaultMixedTransition( type, transition, mPlayer, this, mPipHandler, mSplitHandler, mKeyguardHandler, mUnfoldHandler, mActivityEmbeddingController); } @Override public Consumer handleRecentsRequest(WindowContainerTransaction outWCT) { if (mRecentsHandler != null) { if (mSplitHandler.isSplitScreenVisible()) { return this::setRecentsTransitionDuringSplit; } else if (mKeyguardHandler.isKeyguardShowing()) { return this::setRecentsTransitionDuringKeyguard; } else if (mDesktopTasksController != null // Check on the default display. Recents/gesture nav is only available there && mDesktopTasksController.getVisibleTaskCount(DEFAULT_DISPLAY) > 0) { return this::setRecentsTransitionDuringDesktop; } } return null; } private void setRecentsTransitionDuringSplit(IBinder transition) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a recents request while " + "Split-Screen is foreground, so treat it as Mixed."); mActiveTransitions.add(createRecentsMixedTransition( MixedTransition.TYPE_RECENTS_DURING_SPLIT, transition)); } private void setRecentsTransitionDuringKeyguard(IBinder transition) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a recents request while " + "keyguard is visible, so treat it as Mixed."); mActiveTransitions.add(createRecentsMixedTransition( MixedTransition.TYPE_RECENTS_DURING_KEYGUARD, transition)); } private void setRecentsTransitionDuringDesktop(IBinder transition) { ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Got a recents request while " + "desktop mode is active, so treat it as Mixed."); mActiveTransitions.add(createRecentsMixedTransition( MixedTransition.TYPE_RECENTS_DURING_DESKTOP, transition)); } private MixedTransition createRecentsMixedTransition(int type, IBinder transition) { return new RecentsMixedTransition(type, transition, mPlayer, this, mPipHandler, mSplitHandler, mKeyguardHandler, mRecentsHandler, mDesktopTasksController); } static TransitionInfo subCopy(@NonNull TransitionInfo info, @WindowManager.TransitionType int newType, boolean withChanges) { final TransitionInfo out = new TransitionInfo(newType, withChanges ? info.getFlags() : 0); out.setTrack(info.getTrack()); out.setDebugId(info.getDebugId()); if (withChanges) { for (int i = 0; i < info.getChanges().size(); ++i) { out.getChanges().add(info.getChanges().get(i)); } } for (int i = 0; i < info.getRootCount(); ++i) { out.addRoot(info.getRoot(i)); } out.setAnimationOptions(info.getAnimationOptions()); return out; } @Override public boolean startAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction startTransaction, @NonNull SurfaceControl.Transaction finishTransaction, @NonNull Transitions.TransitionFinishCallback finishCallback) { MixedTransition mixed = null; for (int i = mActiveTransitions.size() - 1; i >= 0; --i) { if (mActiveTransitions.get(i).mTransition != transition) continue; mixed = mActiveTransitions.get(i); break; } // Offer Keyguard the opportunity to take over lock transitions - ideally we could know by // the time of handleRequest, but we need more information than is available at that time. if (KeyguardTransitionHandler.handles(info)) { if (mixed != null && mixed.mType != MixedTransition.TYPE_KEYGUARD) { final MixedTransition keyguardMixed = createDefaultMixedTransition(MixedTransition.TYPE_KEYGUARD, transition); mActiveTransitions.add(keyguardMixed); Transitions.TransitionFinishCallback callback = wct -> { mActiveTransitions.remove(keyguardMixed); finishCallback.onTransitionFinished(wct); }; final boolean hasAnimateKeyguard = animateKeyguard( keyguardMixed, info, startTransaction, finishTransaction, callback, mKeyguardHandler, mPipHandler); if (hasAnimateKeyguard) { ProtoLog.w(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, "Converting mixed transition into a keyguard transition"); // Consume the original mixed transition mActiveTransitions.remove(mixed); mixed.onTransitionConsumed(transition, false, null); return true; } else { // Keyguard handler cannot handle it, process through original mixed mActiveTransitions.remove(keyguardMixed); } } else if (mPipHandler != null) { mPipHandler.syncPipSurfaceState(info, startTransaction, finishTransaction); } } if (mixed == null) return false; final MixedTransition chosenTransition = mixed; Transitions.TransitionFinishCallback callback = wct -> { mActiveTransitions.remove(chosenTransition); finishCallback.onTransitionFinished(wct); }; boolean handled = chosenTransition.startAnimation( transition, info, startTransaction, finishTransaction, callback); if (!handled) { mActiveTransitions.remove(chosenTransition); } return handled; } private void unlinkMissingParents(TransitionInfo from) { for (int i = 0; i < from.getChanges().size(); ++i) { final TransitionInfo.Change chg = from.getChanges().get(i); if (chg.getParent() == null) continue; if (from.getChange(chg.getParent()) == null) { from.getChanges().get(i).setParent(null); } } } private boolean isWithinTask(TransitionInfo info, TransitionInfo.Change chg) { TransitionInfo.Change curr = chg; while (curr != null) { if (curr.getTaskInfo() != null) return true; if (curr.getParent() == null) break; curr = info.getChange(curr.getParent()); } return false; } /** * This is intended to be called by SplitCoordinator as a helper to mix a split handling * transition with an entering-pip change. The use-case for this is when an auto-pip change * gets collected into the transition which has already claimed by * StageCoordinator.handleRequest. This happens when launching a fullscreen app while having an * auto-pip activity in the foreground split pair. */ // TODO(b/287704263): Remove when split/mixed are reversed. public boolean animatePendingEnterPipFromSplit(IBinder transition, TransitionInfo info, SurfaceControl.Transaction startT, SurfaceControl.Transaction finishT, Transitions.TransitionFinishCallback finishCallback, boolean replacingPip) { int type = replacingPip ? MixedTransition.TYPE_ENTER_PIP_REPLACE_FROM_SPLIT : MixedTransition.TYPE_ENTER_PIP_FROM_SPLIT; final MixedTransition mixed = createDefaultMixedTransition(type, transition); mActiveTransitions.add(mixed); Transitions.TransitionFinishCallback callback = wct -> { mActiveTransitions.remove(mixed); finishCallback.onTransitionFinished(wct); }; return mixed.startAnimation(transition, info, startT, finishT, callback); } /** * This is intended to be called by SplitCoordinator as a helper to mix an already-pending * split transition with a display-change. The use-case for this is when a display * change/rotation gets collected into a split-screen enter/exit transition which has already * been claimed by StageCoordinator.handleRequest. This happens during launcher tests. */ public boolean animatePendingSplitWithDisplayChange(@NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction startT, @NonNull SurfaceControl.Transaction finishT, @NonNull Transitions.TransitionFinishCallback finishCallback) { final TransitionInfo everythingElse = subCopy(info, info.getType(), true /* withChanges */); final TransitionInfo displayPart = subCopy(info, TRANSIT_CHANGE, false /* withChanges */); for (int i = info.getChanges().size() - 1; i >= 0; --i) { TransitionInfo.Change change = info.getChanges().get(i); if (isWithinTask(info, change)) continue; displayPart.addChange(change); everythingElse.getChanges().remove(i); } if (displayPart.getChanges().isEmpty()) return false; unlinkMissingParents(everythingElse); final MixedTransition mixed = createDefaultMixedTransition( MixedTransition.TYPE_DISPLAY_AND_SPLIT_CHANGE, transition); mActiveTransitions.add(mixed); ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Animation is a mix of display change " + "and split change."); // We need to split the transition into 2 parts: the split part and the display part. mixed.mInFlightSubAnimations = 2; Transitions.TransitionFinishCallback finishCB = (wct) -> { --mixed.mInFlightSubAnimations; mixed.joinFinishArgs(wct); if (mixed.mInFlightSubAnimations > 0) return; mActiveTransitions.remove(mixed); finishCallback.onTransitionFinished(mixed.mFinishWCT); }; // Dispatch the display change. This will most-likely be taken by the default handler. // Do this first since the first handler used will apply the startT; the display change // needs to take a screenshot before that happens so we need it to be the first handler. mixed.mLeftoversHandler = mPlayer.dispatchTransition(mixed.mTransition, displayPart, startT, finishT, finishCB, mSplitHandler); // Note: at this point, startT has probably already been applied, so we are basically // giving splitHandler an empty startT. This is currently OK because display-change will // grab a screenshot and paste it on top anyways. mSplitHandler.startPendingAnimation(transition, everythingElse, startT, finishT, finishCB); return true; } /** * For example: pip is entering in rotation 0, and then the display changes to rotation 90 * before the pip transition is ready. So the info contains both the entering pip and display * change. In this case, the pip can go to the end state in new rotation directly, and let the * display level animation cover all changed participates. */ public void animateEnteringPipWithDisplayChange(@NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull TransitionInfo.Change pipChange, @NonNull SurfaceControl.Transaction startT, @NonNull SurfaceControl.Transaction finishT, @NonNull Transitions.TransitionFinishCallback finishCallback) { // In order to play display level animation, force the type to CHANGE (it could be PIP). final TransitionInfo changeInfo = info.getType() != TRANSIT_CHANGE ? subCopy(info, TRANSIT_CHANGE, true /* withChanges */) : info; final MixedTransition mixed = createDefaultMixedTransition( MixedTransition.TYPE_ENTER_PIP_WITH_DISPLAY_CHANGE, transition); mActiveTransitions.add(mixed); mixed.mInFlightSubAnimations = 2; final Transitions.TransitionFinishCallback finishCB = wct -> { --mixed.mInFlightSubAnimations; mixed.joinFinishArgs(wct); if (mixed.mInFlightSubAnimations > 0) return; mActiveTransitions.remove(mixed); finishCallback.onTransitionFinished(mixed.mFinishWCT); }; // Perform the display animation first. mixed.mLeftoversHandler = mPlayer.dispatchTransition(mixed.mTransition, changeInfo, startT, finishT, finishCB, mPipHandler); // Use a standalone finish transaction for pip because it will apply immediately. final SurfaceControl.Transaction pipFinishT = new SurfaceControl.Transaction(); mPipHandler.startEnterAnimation(pipChange, startT, pipFinishT, wct -> { // Apply immediately to avoid potential flickering by bounds change at the end of // display animation. mPipHandler.applyTransaction(wct); finishCB.onTransitionFinished(null /* wct */); }); // Jump to the pip end state directly and make sure the real finishT have the latest state. mPipHandler.end(); mPipHandler.syncPipSurfaceState(info, startT, finishT); } private static boolean animateKeyguard(@NonNull final MixedTransition mixed, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction startTransaction, @NonNull SurfaceControl.Transaction finishTransaction, @NonNull Transitions.TransitionFinishCallback finishCallback, @NonNull KeyguardTransitionHandler keyguardHandler, PipTransitionController pipHandler) { if (mixed.mFinishT == null) { mixed.mFinishT = finishTransaction; mixed.mFinishCB = finishCallback; } // Sync pip state. if (pipHandler != null) { pipHandler.syncPipSurfaceState(info, startTransaction, finishTransaction); } return mixed.startSubAnimation(keyguardHandler, info, startTransaction, finishTransaction); } /** Use to when split use intent to enter, check if this enter transition should be mixed or * not.*/ public boolean isIntentInPip(PendingIntent intent) { // Check if this intent package is same as pip one or not, if true we want let the pip // task enter split. if (mPipHandler != null) { return mPipHandler .isPackageActiveInPip(SplitScreenUtils.getPackageName(intent.getIntent())); } return false; } /** Use to when split use taskId to enter, check if this enter transition should be mixed or * not.*/ public boolean isTaskInPip(int taskId, ShellTaskOrganizer shellTaskOrganizer) { // Check if this intent package is same as pip one or not, if true we want let the pip // task enter split. if (mPipHandler != null) { return mPipHandler.isPackageActiveInPip( SplitScreenUtils.getPackageName(taskId, shellTaskOrganizer)); } return false; } /** @return whether the transition-request represents a pip-entry. */ public boolean requestHasPipEnter(TransitionRequestInfo request) { return mPipHandler.requestHasPipEnter(request); } /** Whether a particular change is a window that is entering pip. */ // TODO(b/287704263): Remove when split/mixed are reversed. public boolean isEnteringPip(TransitionInfo.Change change, @WindowManager.TransitionType int transitType) { return mPipHandler.isEnteringPip(change, transitType); } @Override public void mergeAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info, @NonNull SurfaceControl.Transaction t, @NonNull IBinder mergeTarget, @NonNull Transitions.TransitionFinishCallback finishCallback) { for (int i = 0; i < mActiveTransitions.size(); ++i) { if (mActiveTransitions.get(i).mTransition != mergeTarget) continue; MixedTransition mixed = mActiveTransitions.get(i); if (mixed.mInFlightSubAnimations <= 0) { // Already done, so no need to end it. return; } mixed.mergeAnimation(transition, info, t, mergeTarget, finishCallback); } } @Override public void onTransitionConsumed(@NonNull IBinder transition, boolean aborted, @Nullable SurfaceControl.Transaction finishT) { MixedTransition mixed = null; for (int i = mActiveTransitions.size() - 1; i >= 0; --i) { if (mActiveTransitions.get(i).mTransition != transition) continue; mixed = mActiveTransitions.remove(i); break; } if (mixed != null) { mixed.onTransitionConsumed(transition, aborted, finishT); } } /** * Update an incoming {@link TransitionInfo} with the leashes from an existing * {@link TransitionInfo} so that it can take over some parts of the animation without * reparenting to new transition roots. */ static void handoverTransitionLeashes( @NonNull TransitionInfo from, @NonNull TransitionInfo to, @NonNull SurfaceControl.Transaction startT, @NonNull SurfaceControl.Transaction finishT) { // Show the roots in case they contain new changes not present in the original transition. for (int j = to.getRootCount() - 1; j >= 0; --j) { startT.show(to.getRoot(j).getLeash()); } // Find all of the leashes from the original transition. Map originalChanges = new ArrayMap<>(); for (TransitionInfo.Change oldChange : from.getChanges()) { if (oldChange.getContainer() != null) { originalChanges.put(oldChange.getContainer(), oldChange); } } // Merge the animation leashes by re-using the original ones if we see the same container // in the new transition and the old. for (TransitionInfo.Change newChange : to.getChanges()) { if (originalChanges.containsKey(newChange.getContainer())) { final TransitionInfo.Change oldChange = originalChanges.get( newChange.getContainer()); startT.reparent(newChange.getLeash(), null); newChange.setLeash(oldChange.getLeash()); } } } }