Split MixedTransition into Recents and Default. (075baa38) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedHandler.java

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libs/WindowManager/Shell/src/com/android/wm/shell/transition/DefaultMixedTransition.java

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		/*
		* 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.transition;

		import static android.view.WindowManager.TRANSIT_TO_BACK;

		import static com.android.wm.shell.transition.DefaultMixedHandler.subCopy;
		import static com.android.wm.shell.transition.MixedTransitionHelper.animateEnterPipFromSplit;
		import static com.android.wm.shell.transition.MixedTransitionHelper.animateKeyguard;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.os.IBinder;
		import android.view.SurfaceControl;
		import android.window.TransitionInfo;

		import com.android.internal.protolog.common.ProtoLog;
		import com.android.wm.shell.activityembedding.ActivityEmbeddingController;
		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.splitscreen.StageCoordinator;
		import com.android.wm.shell.unfold.UnfoldTransitionHandler;

		class DefaultMixedTransition extends DefaultMixedHandler.MixedTransition {
		private final UnfoldTransitionHandler mUnfoldHandler;
		private final ActivityEmbeddingController mActivityEmbeddingController;

		DefaultMixedTransition(int type, IBinder transition, Transitions player,
		DefaultMixedHandler mixedHandler, PipTransitionController pipHandler,
		StageCoordinator splitHandler, KeyguardTransitionHandler keyguardHandler,
		UnfoldTransitionHandler unfoldHandler,
		ActivityEmbeddingController activityEmbeddingController) {
		super(type, transition, player, mixedHandler, pipHandler, splitHandler, keyguardHandler);
		mUnfoldHandler = unfoldHandler;
		mActivityEmbeddingController = activityEmbeddingController;

		switch (type) {
		case TYPE_UNFOLD:
		mLeftoversHandler = mUnfoldHandler;
		break;
		case TYPE_DISPLAY_AND_SPLIT_CHANGE:
		case TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING:
		case TYPE_ENTER_PIP_FROM_SPLIT:
		case TYPE_KEYGUARD:
		case TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE:
		default:
		break;
		}
		}

		@Override
		boolean startAnimation(
		@NonNull IBinder transition, @NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		return switch (mType) {
		case TYPE_DISPLAY_AND_SPLIT_CHANGE -> false;
		case TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING ->
		animateEnterPipFromActivityEmbedding(
		info, startTransaction, finishTransaction, finishCallback);
		case TYPE_ENTER_PIP_FROM_SPLIT ->
		animateEnterPipFromSplit(this, info, startTransaction, finishTransaction,
		finishCallback, mPlayer, mMixedHandler, mPipHandler, mSplitHandler);
		case TYPE_KEYGUARD ->
		animateKeyguard(this, info, startTransaction, finishTransaction, finishCallback,
		mKeyguardHandler, mPipHandler);
		case TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE ->
		animateOpenIntentWithRemoteAndPip(transition, info, startTransaction,
		finishTransaction, finishCallback);
		case TYPE_UNFOLD ->
		animateUnfold(info, startTransaction, finishTransaction, finishCallback);
		default -> throw new IllegalStateException(
		"Starting default mixed animation with unknown or illegal type: " + mType);
		};
		}

		private boolean animateEnterPipFromActivityEmbedding(
		@NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Animating a mixed transition for "
		+ "entering PIP from an Activity Embedding window");
		// Split into two transitions (wct)
		TransitionInfo.Change pipChange = null;
		final TransitionInfo everythingElse = subCopy(info, TRANSIT_TO_BACK, true /* changes */);
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		TransitionInfo.Change change = info.getChanges().get(i);
		if (mPipHandler.isEnteringPip(change, info.getType())) {
		if (pipChange != null) {
		throw new IllegalStateException("More than 1 pip-entering changes in one"
		+ " transition? " + info);
		}
		pipChange = change;
		// going backwards, so remove-by-index is fine.
		everythingElse.getChanges().remove(i);
		}
		}

		final Transitions.TransitionFinishCallback finishCB = (wct) -> {
		--mInFlightSubAnimations;
		joinFinishArgs(wct);
		if (mInFlightSubAnimations > 0) return;
		finishCallback.onTransitionFinished(mFinishWCT);
		};

		if (!mActivityEmbeddingController.shouldAnimate(everythingElse)) {
		// Fallback to dispatching to other handlers.
		return false;
		}

		// PIP window should always be on the highest Z order.
		if (pipChange != null) {
		mInFlightSubAnimations = 2;
		mPipHandler.startEnterAnimation(
		pipChange, startTransaction.setLayer(pipChange.getLeash(), Integer.MAX_VALUE),
		finishTransaction,
		finishCB);
		} else {
		mInFlightSubAnimations = 1;
		}

		mActivityEmbeddingController.startAnimation(
		mTransition, everythingElse, startTransaction, finishTransaction, finishCB);
		return true;
		}

		private boolean animateOpenIntentWithRemoteAndPip(
		@NonNull IBinder transition, @NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		boolean handledToPip = tryAnimateOpenIntentWithRemoteAndPip(
		info, startTransaction, finishTransaction, finishCallback);
		// Consume the transition on remote handler if the leftover handler already handle this
		// transition. And if it cannot, the transition will be handled by remote handler, so don't
		// consume here.
		// Need to check leftOverHandler as it may change in #animateOpenIntentWithRemoteAndPip
		if (handledToPip && mHasRequestToRemote
		&& mLeftoversHandler != mPlayer.getRemoteTransitionHandler()) {
		mPlayer.getRemoteTransitionHandler().onTransitionConsumed(transition, false, null);
		}
		return handledToPip;
		}

		private boolean tryAnimateOpenIntentWithRemoteAndPip(
		@NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		TransitionInfo.Change pipChange = null;
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		TransitionInfo.Change change = info.getChanges().get(i);
		if (mPipHandler.isEnteringPip(change, info.getType())) {
		if (pipChange != null) {
		throw new IllegalStateException("More than 1 pip-entering changes in one"
		+ " transition? " + info);
		}
		pipChange = change;
		info.getChanges().remove(i);
		}
		}
		Transitions.TransitionFinishCallback finishCB = (wct) -> {
		--mInFlightSubAnimations;
		joinFinishArgs(wct);
		if (mInFlightSubAnimations > 0) return;
		finishCallback.onTransitionFinished(mFinishWCT);
		};
		if (pipChange == null) {
		if (mLeftoversHandler != null) {
		mInFlightSubAnimations = 1;
		if (mLeftoversHandler.startAnimation(
		mTransition, info, startTransaction, finishTransaction, finishCB)) {
		return true;
		}
		}
		return false;
		}
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Splitting PIP into a separate"
		+ " animation because remote-animation likely doesn't support it");
		// Split the transition into 2 parts: the pip part and the rest.
		mInFlightSubAnimations = 2;
		// make a new startTransaction because pip's startEnterAnimation "consumes" it so
		// we need a separate one to send over to launcher.
		SurfaceControl.Transaction otherStartT = new SurfaceControl.Transaction();

		mPipHandler.startEnterAnimation(pipChange, otherStartT, finishTransaction, finishCB);

		// Dispatch the rest of the transition normally.
		if (mLeftoversHandler != null
		&& mLeftoversHandler.startAnimation(mTransition, info,
		startTransaction, finishTransaction, finishCB)) {
		return true;
		}
		mLeftoversHandler = mPlayer.dispatchTransition(
		mTransition, info, startTransaction, finishTransaction, finishCB, mMixedHandler);
		return true;
		}

		private boolean animateUnfold(
		@NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		final Transitions.TransitionFinishCallback finishCB = (wct) -> {
		mInFlightSubAnimations--;
		if (mInFlightSubAnimations > 0) return;
		finishCallback.onTransitionFinished(wct);
		};
		mInFlightSubAnimations = 1;
		// Sync pip state.
		if (mPipHandler != null) {
		mPipHandler.syncPipSurfaceState(info, startTransaction, finishTransaction);
		}
		if (mSplitHandler != null && mSplitHandler.isSplitActive()) {
		mSplitHandler.updateSurfaces(startTransaction);
		}
		return mUnfoldHandler.startAnimation(
		mTransition, info, startTransaction, finishTransaction, finishCB);
		}

		@Override
		void mergeAnimation(
		@NonNull IBinder transition, @NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction t, @NonNull IBinder mergeTarget,
		@NonNull Transitions.TransitionFinishCallback finishCallback) {
		switch (mType) {
		case TYPE_DISPLAY_AND_SPLIT_CHANGE:
		// queue since no actual animation.
		return;
		case TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING:
		mPipHandler.end();
		mActivityEmbeddingController.mergeAnimation(
		transition, info, t, mergeTarget, finishCallback);
		return;
		case TYPE_ENTER_PIP_FROM_SPLIT:
		if (mAnimType == ANIM_TYPE_GOING_HOME) {
		boolean ended = mSplitHandler.end();
		// If split couldn't end (because it is remote), then don't end everything else
		// since we have to play out the animation anyways.
		if (!ended) return;
		mPipHandler.end();
		if (mLeftoversHandler != null) {
		mLeftoversHandler.mergeAnimation(
		transition, info, t, mergeTarget, finishCallback);
		}
		} else {
		mPipHandler.end();
		}
		return;
		case TYPE_KEYGUARD:
		mKeyguardHandler.mergeAnimation(transition, info, t, mergeTarget, finishCallback);
		return;
		case TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE:
		mPipHandler.end();
		if (mLeftoversHandler != null) {
		mLeftoversHandler.mergeAnimation(
		transition, info, t, mergeTarget, finishCallback);
		}
		return;
		case TYPE_UNFOLD:
		mUnfoldHandler.mergeAnimation(transition, info, t, mergeTarget, finishCallback);
		return;
		default:
		throw new IllegalStateException("Playing a default mixed transition with unknown or"
		+ " illegal type: " + mType);
		}
		}

		@Override
		void onTransitionConsumed(
		@NonNull IBinder transition, boolean aborted,
		@Nullable SurfaceControl.Transaction finishT) {
		switch (mType) {
		case TYPE_ENTER_PIP_FROM_ACTIVITY_EMBEDDING:
		mPipHandler.onTransitionConsumed(transition, aborted, finishT);
		mActivityEmbeddingController.onTransitionConsumed(transition, aborted, finishT);
		break;
		case TYPE_ENTER_PIP_FROM_SPLIT:
		mPipHandler.onTransitionConsumed(transition, aborted, finishT);
		break;
		case TYPE_KEYGUARD:
		mKeyguardHandler.onTransitionConsumed(transition, aborted, finishT);
		break;
		case TYPE_OPTIONS_REMOTE_AND_PIP_CHANGE:
		mLeftoversHandler.onTransitionConsumed(transition, aborted, finishT);
		break;
		case TYPE_UNFOLD:
		mUnfoldHandler.onTransitionConsumed(transition, aborted, finishT);
		break;
		default:
		break;
		}

		if (mHasRequestToRemote) {
		mPlayer.getRemoteTransitionHandler().onTransitionConsumed(transition, aborted, finishT);
		}
		}
		}

libs/WindowManager/Shell/src/com/android/wm/shell/transition/MixedTransitionHelper.java

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		/*
		* 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.transition;

		import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
		import static android.view.WindowManager.TRANSIT_TO_BACK;
		import static android.window.TransitionInfo.FLAG_IS_WALLPAPER;

		import static com.android.wm.shell.common.split.SplitScreenConstants.FLAG_IS_DIVIDER_BAR;
		import static com.android.wm.shell.common.split.SplitScreenConstants.SPLIT_POSITION_UNDEFINED;
		import static com.android.wm.shell.pip.PipAnimationController.ANIM_TYPE_ALPHA;
		import static com.android.wm.shell.splitscreen.SplitScreen.STAGE_TYPE_UNDEFINED;
		import static com.android.wm.shell.splitscreen.SplitScreenController.EXIT_REASON_CHILD_TASK_ENTER_PIP;
		import static com.android.wm.shell.transition.DefaultMixedHandler.subCopy;

		import android.annotation.NonNull;
		import android.view.SurfaceControl;
		import android.window.TransitionInfo;

		import com.android.internal.protolog.common.ProtoLog;
		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.splitscreen.SplitScreen;
		import com.android.wm.shell.splitscreen.StageCoordinator;

		public class MixedTransitionHelper {
		static boolean animateEnterPipFromSplit(
		@NonNull DefaultMixedHandler.MixedTransition mixed, @NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback,
		@NonNull Transitions player, @NonNull DefaultMixedHandler mixedHandler,
		@NonNull PipTransitionController pipHandler, @NonNull StageCoordinator splitHandler) {
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Animating a mixed transition for "
		+ "entering PIP while Split-Screen is foreground.");
		TransitionInfo.Change pipChange = null;
		TransitionInfo.Change wallpaper = null;
		final TransitionInfo everythingElse =
		subCopy(info, TRANSIT_TO_BACK, true /* changes */);
		boolean homeIsOpening = false;
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		TransitionInfo.Change change = info.getChanges().get(i);
		if (pipHandler.isEnteringPip(change, info.getType())) {
		if (pipChange != null) {
		throw new IllegalStateException("More than 1 pip-entering changes in one"
		+ " transition? " + info);
		}
		pipChange = change;
		// going backwards, so remove-by-index is fine.
		everythingElse.getChanges().remove(i);
		} else if (isHomeOpening(change)) {
		homeIsOpening = true;
		} else if (isWallpaper(change)) {
		wallpaper = change;
		}
		}
		if (pipChange == null) {
		// um, something probably went wrong.
		return false;
		}
		final boolean isGoingHome = homeIsOpening;
		Transitions.TransitionFinishCallback finishCB = (wct) -> {
		--mixed.mInFlightSubAnimations;
		mixed.joinFinishArgs(wct);
		if (mixed.mInFlightSubAnimations > 0) return;
		if (isGoingHome) {
		splitHandler.onTransitionAnimationComplete();
		}
		finishCallback.onTransitionFinished(mixed.mFinishWCT);
		};
		if (isGoingHome \|\| splitHandler.getSplitItemPosition(pipChange.getLastParent())
		!= SPLIT_POSITION_UNDEFINED) {
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Animation is actually mixed "
		+ "since entering-PiP caused us to leave split and return home.");
		// We need to split the transition into 2 parts: the pip part (animated by pip)
		// and the dismiss-part (animated by launcher).
		mixed.mInFlightSubAnimations = 2;
		// immediately make the wallpaper visible (so that we don't see it pop-in during
		// the time it takes to start recents animation (which is remote).
		if (wallpaper != null) {
		startTransaction.show(wallpaper.getLeash()).setAlpha(wallpaper.getLeash(), 1.f);
		}
		// make a new startTransaction because pip's startEnterAnimation "consumes" it so
		// we need a separate one to send over to launcher.
		SurfaceControl.Transaction otherStartT = new SurfaceControl.Transaction();
		@SplitScreen.StageType int topStageToKeep = STAGE_TYPE_UNDEFINED;
		if (splitHandler.isSplitScreenVisible()) {
		// The non-going home case, we could be pip-ing one of the split stages and keep
		// showing the other
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		TransitionInfo.Change change = info.getChanges().get(i);
		if (change == pipChange) {
		// Ignore the change/task that's going into Pip
		continue;
		}
		@SplitScreen.StageType int splitItemStage =
		splitHandler.getSplitItemStage(change.getLastParent());
		if (splitItemStage != STAGE_TYPE_UNDEFINED) {
		topStageToKeep = splitItemStage;
		break;
		}
		}
		}
		// Let split update internal state for dismiss.
		splitHandler.prepareDismissAnimation(topStageToKeep,
		EXIT_REASON_CHILD_TASK_ENTER_PIP, everythingElse, otherStartT,
		finishTransaction);

		// We are trying to accommodate launcher's close animation which can't handle the
		// divider-bar, so if split-handler is closing the divider-bar, just hide it and
		// remove from transition info.
		for (int i = everythingElse.getChanges().size() - 1; i >= 0; --i) {
		if ((everythingElse.getChanges().get(i).getFlags() & FLAG_IS_DIVIDER_BAR)
		!= 0) {
		everythingElse.getChanges().remove(i);
		break;
		}
		}

		pipHandler.setEnterAnimationType(ANIM_TYPE_ALPHA);
		pipHandler.startEnterAnimation(pipChange, startTransaction, finishTransaction,
		finishCB);
		// Dispatch the rest of the transition normally. This will most-likely be taken by
		// recents or default handler.
		mixed.mLeftoversHandler = player.dispatchTransition(mixed.mTransition, everythingElse,
		otherStartT, finishTransaction, finishCB, mixedHandler);
		} else {
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " Not leaving split, so just "
		+ "forward animation to Pip-Handler.");
		// This happens if the pip-ing activity is in a multi-activity task (and thus a
		// new pip task is spawned). In this case, we don't actually exit split so we can
		// just let pip transition handle the animation verbatim.
		mixed.mInFlightSubAnimations = 1;
		pipHandler.startAnimation(
		mixed.mTransition, info, startTransaction, finishTransaction, finishCB);
		}
		return true;
		}

		private static boolean isHomeOpening(@NonNull TransitionInfo.Change change) {
		return change.getTaskInfo() != null
		&& change.getTaskInfo().getActivityType() == ACTIVITY_TYPE_HOME;
		}

		private static boolean isWallpaper(@NonNull TransitionInfo.Change change) {
		return (change.getFlags() & FLAG_IS_WALLPAPER) != 0;
		}

		static boolean animateKeyguard(
		@NonNull DefaultMixedHandler.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);
		}
		}

libs/WindowManager/Shell/src/com/android/wm/shell/transition/RecentsMixedTransition.java

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File added.

Preview size limit exceeded, changes collapsed.