Implement split resize shell transition (104a5f5c) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitDecorManager.java

+55 −22

Original line number	Diff line number	Diff line
		@@ -51,8 +51,6 @@ import com.android.wm.shell.R;
		import com.android.wm.shell.common.ScreenshotUtils;
		import com.android.wm.shell.common.SurfaceUtils;

		import java.util.function.Consumer;

		/**
		* Handles split decor like showing resizing hint for a specific split.
		*/
		@@ -72,17 +70,18 @@ public class SplitDecorManager extends WindowlessWindowManager {
		private SurfaceControl mIconLeash;
		private SurfaceControl mBackgroundLeash;
		private SurfaceControl mGapBackgroundLeash;
		private SurfaceControl mScreenshot;

		private boolean mShown;
		private boolean mIsResizing;
		private final Rect mBounds = new Rect();
		private final Rect mResizingBounds = new Rect();
		private final Rect mTempRect = new Rect();
		private ValueAnimator mFadeAnimator;

		private int mIconSize;
		private int mOffsetX;
		private int mOffsetY;
		private int mRunningAnimationCount = 0;

		public SplitDecorManager(Configuration configuration, IconProvider iconProvider,
		SurfaceSession surfaceSession) {
		@@ -173,7 +172,6 @@ public class SplitDecorManager extends WindowlessWindowManager {
		mIsResizing = true;
		mBounds.set(newBounds);
		}
		mResizingBounds.set(newBounds);
		mOffsetX = offsetX;
		mOffsetY = offsetY;

		@@ -227,33 +225,41 @@ public class SplitDecorManager extends WindowlessWindowManager {
		t.setVisibility(mBackgroundLeash, show);
		t.setVisibility(mIconLeash, show);
		} else {
		startFadeAnimation(show, null /* finishedConsumer */);
		startFadeAnimation(show, false, null);
		}
		mShown = show;
		}
		}

		/** Stops showing resizing hint. */
		public void onResized(SurfaceControl.Transaction t) {
		if (!mShown && mIsResizing) {
		mTempRect.set(mResizingBounds);
		mTempRect.offsetTo(-mOffsetX, -mOffsetY);
		final SurfaceControl screenshot = ScreenshotUtils.takeScreenshot(t,
		mHostLeash, mTempRect, Integer.MAX_VALUE - 1);
		public void onResized(SurfaceControl.Transaction t, Runnable animFinishedCallback) {
		if (mScreenshot != null) {
		t.setPosition(mScreenshot, mOffsetX, mOffsetY);

		final SurfaceControl.Transaction animT = new SurfaceControl.Transaction();
		final ValueAnimator va = ValueAnimator.ofFloat(1, 0);
		va.addUpdateListener(valueAnimator -> {
		final float progress = (float) valueAnimator.getAnimatedValue();
		animT.setAlpha(screenshot, progress);
		animT.setAlpha(mScreenshot, progress);
		animT.apply();
		});
		va.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationStart(Animator animation) {
		mRunningAnimationCount++;
		}

		@Override
		public void onAnimationEnd(@androidx.annotation.NonNull Animator animation) {
		animT.remove(screenshot);
		mRunningAnimationCount--;
		animT.remove(mScreenshot);
		animT.apply();
		animT.close();
		mScreenshot = null;

		if (mRunningAnimationCount == 0 && animFinishedCallback != null) {
		animFinishedCallback.run();
		}
		}
		});
		va.start();
		@@ -285,10 +291,34 @@ public class SplitDecorManager extends WindowlessWindowManager {
		mFadeAnimator.cancel();
		}
		if (mShown) {
		fadeOutDecor(null /* finishedCallback */);
		fadeOutDecor(animFinishedCallback);
		} else {
		// Decor surface is hidden so release it directly.
		releaseDecor(t);
		if (mRunningAnimationCount == 0 && animFinishedCallback != null) {
		animFinishedCallback.run();
		}
		}
		}

		/** Screenshot host leash and attach on it if meet some conditions */
		public void screenshotIfNeeded(SurfaceControl.Transaction t) {
		if (!mShown && mIsResizing) {
		mTempRect.set(mBounds);
		mTempRect.offsetTo(0, 0);
		mScreenshot = ScreenshotUtils.takeScreenshot(t, mHostLeash, mTempRect,
		Integer.MAX_VALUE - 1);
		}
		}

		/** Set screenshot and attach on host leash it if meet some conditions */
		public void setScreenshotIfNeeded(SurfaceControl screenshot, SurfaceControl.Transaction t) {
		if (screenshot == null \|\| !screenshot.isValid()) return;

		if (!mShown && mIsResizing) {
		mScreenshot = screenshot;
		t.reparent(screenshot, mHostLeash);
		t.setLayer(screenshot, Integer.MAX_VALUE - 1);
		}
		}

		@@ -296,18 +326,15 @@ public class SplitDecorManager extends WindowlessWindowManager {
		* directly. */
		public void fadeOutDecor(Runnable finishedCallback) {
		if (mShown) {
		startFadeAnimation(false /* show */, transaction -> {
		releaseDecor(transaction);
		if (finishedCallback != null) finishedCallback.run();
		});
		startFadeAnimation(false /* show */, true, finishedCallback);
		mShown = false;
		} else {
		if (finishedCallback != null) finishedCallback.run();
		}
		}

		private void startFadeAnimation(boolean show,
		Consumer<SurfaceControl.Transaction> finishedConsumer) {
		private void startFadeAnimation(boolean show, boolean releaseSurface,
		Runnable finishedCallback) {
		final SurfaceControl.Transaction animT = new SurfaceControl.Transaction();
		mFadeAnimator = ValueAnimator.ofFloat(0f, 1f);
		mFadeAnimator.setDuration(FADE_DURATION);
		@@ -324,6 +351,7 @@ public class SplitDecorManager extends WindowlessWindowManager {
		mFadeAnimator.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationStart(@NonNull Animator animation) {
		mRunningAnimationCount++;
		if (show) {
		animT.show(mBackgroundLeash).show(mIconLeash);
		}
		@@ -335,6 +363,7 @@ public class SplitDecorManager extends WindowlessWindowManager {

		@Override
		public void onAnimationEnd(@NonNull Animator animation) {
		mRunningAnimationCount--;
		if (!show) {
		if (mBackgroundLeash != null) {
		animT.hide(mBackgroundLeash);
		@@ -343,11 +372,15 @@ public class SplitDecorManager extends WindowlessWindowManager {
		animT.hide(mIconLeash);
		}
		}
		if (finishedConsumer != null) {
		finishedConsumer.accept(animT);
		if (releaseSurface) {
		releaseDecor(animT);
		}
		animT.apply();
		animT.close();

		if (mRunningAnimationCount == 0 && finishedCallback != null) {
		finishedCallback.run();
		}
		}
		});
		mFadeAnimator.start();

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/SplitScreenTransitions.java

+67 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,7 @@ import android.window.WindowContainerTransactionCallback;

		import com.android.internal.protolog.common.ProtoLog;
		import com.android.wm.shell.common.TransactionPool;
		import com.android.wm.shell.common.split.SplitDecorManager;
		import com.android.wm.shell.protolog.ShellProtoLogGroup;
		import com.android.wm.shell.transition.OneShotRemoteHandler;
		import com.android.wm.shell.transition.Transitions;
		@@ -64,6 +65,7 @@ class SplitScreenTransitions {
		DismissTransition mPendingDismiss = null;
		TransitSession mPendingEnter = null;
		TransitSession mPendingRecent = null;
		TransitSession mPendingResize = null;

		private IBinder mAnimatingTransition = null;
		OneShotRemoteHandler mPendingRemoteHandler = null;
		@@ -177,6 +179,43 @@ class SplitScreenTransitions {
		onFinish(null /* wct /, null / wctCB */);
		}

		void applyResizeTransition(@NonNull IBinder transition, @NonNull TransitionInfo info,
		@NonNull SurfaceControl.Transaction startTransaction,
		@NonNull SurfaceControl.Transaction finishTransaction,
		@NonNull Transitions.TransitionFinishCallback finishCallback,
		@NonNull WindowContainerToken mainRoot, @NonNull WindowContainerToken sideRoot,
		@NonNull SplitDecorManager mainDecor, @NonNull SplitDecorManager sideDecor) {
		mFinishCallback = finishCallback;
		mAnimatingTransition = transition;
		mFinishTransaction = finishTransaction;

		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		final TransitionInfo.Change change = info.getChanges().get(i);
		if (mainRoot.equals(change.getContainer()) \|\| sideRoot.equals(change.getContainer())) {
		final SurfaceControl leash = change.getLeash();
		startTransaction.setPosition(leash, change.getEndAbsBounds().left,
		change.getEndAbsBounds().top);
		startTransaction.setWindowCrop(leash, change.getEndAbsBounds().width(),
		change.getEndAbsBounds().height());

		SplitDecorManager decor = mainRoot.equals(change.getContainer())
		? mainDecor : sideDecor;
		ValueAnimator va = new ValueAnimator();
		mAnimations.add(va);
		decor.setScreenshotIfNeeded(change.getSnapshot(), startTransaction);
		decor.onResized(startTransaction, () -> {
		mTransitions.getMainExecutor().execute(() -> {
		mAnimations.remove(va);
		onFinish(null /* wct /, null / wctCB */);
		});
		});
		}
		}

		startTransaction.apply();
		onFinish(null /* wct /, null / wctCB */);
		}

		boolean isPendingTransition(IBinder transition) {
		return getPendingTransition(transition) != null;
		}
		@@ -193,6 +232,10 @@ class SplitScreenTransitions {
		return mPendingDismiss != null && mPendingDismiss.mTransition == transition;
		}

		boolean isPendingResize(IBinder transition) {
		return mPendingResize != null && mPendingResize.mTransition == transition;
		}

		@Nullable
		private TransitSession getPendingTransition(IBinder transition) {
		if (isPendingEnter(transition)) {
		@@ -201,11 +244,14 @@ class SplitScreenTransitions {
		return mPendingRecent;
		} else if (isPendingDismiss(transition)) {
		return mPendingDismiss;
		} else if (isPendingResize(transition)) {
		return mPendingResize;
		}

		return null;
		}


		/** Starts a transition to enter split with a remote transition animator. */
		IBinder startEnterTransition(
		@WindowManager.TransitionType int transitType,
		@@ -258,6 +304,21 @@ class SplitScreenTransitions {
		exitReasonToString(reason), stageTypeToString(dismissTop));
		}

		IBinder startResizeTransition(WindowContainerTransaction wct,
		Transitions.TransitionHandler handler,
		@Nullable TransitionFinishedCallback finishCallback) {
		IBinder transition = mTransitions.startTransition(TRANSIT_CHANGE, wct, handler);
		setResizeTransition(transition, finishCallback);
		return transition;
		}

		void setResizeTransition(@NonNull IBinder transition,
		@Nullable TransitionFinishedCallback finishCallback) {
		mPendingResize = new TransitSession(transition, null /* consumedCb */, finishCallback);
		ProtoLog.v(ShellProtoLogGroup.WM_SHELL_TRANSITIONS, " splitTransition "
		+ " deduced Resize split screen");
		}

		void setRecentTransition(@NonNull IBinder transition,
		@Nullable RemoteTransition remoteTransition,
		@Nullable TransitionFinishedCallback finishCallback) {
		@@ -324,6 +385,9 @@ class SplitScreenTransitions {
		mPendingRecent.onConsumed(aborted);
		mPendingRecent = null;
		mPendingRemoteHandler = null;
		} else if (isPendingResize(transition)) {
		mPendingResize.onConsumed(aborted);
		mPendingResize = null;
		}
		}

		@@ -340,6 +404,9 @@ class SplitScreenTransitions {
		} else if (isPendingDismiss(mAnimatingTransition)) {
		mPendingDismiss.onFinished(wct, mFinishTransaction);
		mPendingDismiss = null;
		} else if (isPendingResize(mAnimatingTransition)) {
		mPendingResize.onFinished(wct, mFinishTransaction);
		mPendingResize = null;
		}

		mPendingRemoteHandler = null;

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageCoordinator.java

+26 −6

Original line number	Diff line number	Diff line
		@@ -1670,15 +1670,29 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
		public void onLayoutSizeChanged(SplitLayout layout) {
		// Reset this flag every time onLayoutSizeChanged.
		mShowDecorImmediately = false;

		if (!ENABLE_SHELL_TRANSITIONS) {
		// Only need screenshot for legacy case because shell transition should screenshot
		// itself during transition.
		final SurfaceControl.Transaction startT = mTransactionPool.acquire();
		mMainStage.screenshotIfNeeded(startT);
		mSideStage.screenshotIfNeeded(startT);
		mTransactionPool.release(startT);
		}

		final WindowContainerTransaction wct = new WindowContainerTransaction();
		updateWindowBounds(layout, wct);
		sendOnBoundsChanged();
		if (ENABLE_SHELL_TRANSITIONS) {
		mSplitTransitions.startResizeTransition(wct, this, null /* callback */);
		} else {
		mSyncQueue.queue(wct);
		mSyncQueue.runInSync(t -> {
		updateSurfaceBounds(layout, t, false /* applyResizingOffset */);
		mMainStage.onResized(t);
		mSideStage.onResized(t);
		});
		}
		mLogger.logResize(mSplitLayout.getDividerPositionAsFraction());
		}

		@@ -2032,6 +2046,12 @@ public class StageCoordinator implements SplitLayout.SplitLayoutHandler,
		} else if (mSplitTransitions.isPendingDismiss(transition)) {
		shouldAnimate = startPendingDismissAnimation(
		mSplitTransitions.mPendingDismiss, info, startTransaction, finishTransaction);
		} else if (mSplitTransitions.isPendingResize(transition)) {
		mSplitTransitions.applyResizeTransition(transition, info, startTransaction,
		finishTransaction, finishCallback, mMainStage.mRootTaskInfo.token,
		mSideStage.mRootTaskInfo.token, mMainStage.getSplitDecorManager(),
		mSideStage.getSplitDecorManager());
		return true;
		}
		if (!shouldAnimate) return false;

libs/WindowManager/Shell/src/com/android/wm/shell/splitscreen/StageTaskListener.java

+11 −1

Original line number	Diff line number	Diff line
		@@ -292,7 +292,13 @@ class StageTaskListener implements ShellTaskOrganizer.TaskListener {

		void onResized(SurfaceControl.Transaction t) {
		if (mSplitDecorManager != null) {
		mSplitDecorManager.onResized(t);
		mSplitDecorManager.onResized(t, null);
		}
		}

		void screenshotIfNeeded(SurfaceControl.Transaction t) {
		if (mSplitDecorManager != null) {
		mSplitDecorManager.screenshotIfNeeded(t);
		}
		}

		@@ -304,6 +310,10 @@ class StageTaskListener implements ShellTaskOrganizer.TaskListener {
		}
		}

		SplitDecorManager getSplitDecorManager() {
		return mSplitDecorManager;
		}

		void addTask(ActivityManager.RunningTaskInfo task, WindowContainerTransaction wct) {
		// Clear overridden bounds and windowing mode to make sure the child task can inherit
		// windowing mode and bounds from split root.

services/core/java/com/android/server/wm/Task.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -2177,7 +2177,7 @@ class Task extends TaskFragment {
		}

		private boolean shouldStartChangeTransition(int prevWinMode, @NonNull Rect prevBounds) {
		if (!isLeafTask() \|\| !canStartChangeTransition()) {
		if (!(isLeafTask() \|\| mCreatedByOrganizer) \|\| !canStartChangeTransition()) {
		return false;
		}
		final int newWinMode = getWindowingMode();