Adapt transition merge during recents into onTaskAppeared. (53d1bb6e) · Commits · e / os / android_frameworks_base

packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteTransitionCompat.java

+75 −11

Original line number	Diff line number	Diff line
		@@ -101,6 +101,9 @@ public class RemoteTransitionCompat implements Parcelable {
		public RemoteTransitionCompat(RecentsAnimationListener recents,
		RecentsAnimationControllerCompat controller) {
		mTransition = new IRemoteTransition.Stub() {
		final RecentsControllerWrap mRecentsSession = new RecentsControllerWrap();
		IBinder mToken = null;

		@Override
		public void startAnimation(IBinder transition, TransitionInfo info,
		SurfaceControl.Transaction t,
		@@ -110,6 +113,7 @@ public class RemoteTransitionCompat implements Parcelable {
		final RemoteAnimationTargetCompat[] wallpapers =
		RemoteAnimationTargetCompat.wrap(info, true /* wallpapers */);
		// TODO(b/177438007): Move this set-up logic into launcher's animation impl.
		mToken = transition;
		// This transition is for opening recents, so recents is on-top. We want to draw
		// the current going-away task on top of recents, though, so move it to front
		WindowContainerToken pausingTask = null;
		@@ -127,9 +131,8 @@ public class RemoteTransitionCompat implements Parcelable {
		t.setAlpha(wallpapers[i].leash.mSurfaceControl, 1);
		}
		t.apply();
		final RecentsAnimationControllerCompat wrapControl =
		new RecentsControllerWrap(controller, info, finishedCallback, pausingTask);
		recents.onAnimationStart(wrapControl, apps, wallpapers, new Rect(0, 0, 0, 0),
		mRecentsSession.setup(controller, info, finishedCallback, pausingTask);
		recents.onAnimationStart(mRecentsSession, apps, wallpapers, new Rect(0, 0, 0, 0),
		new Rect());
		}

		@@ -137,7 +140,13 @@ public class RemoteTransitionCompat implements Parcelable {
		public void mergeAnimation(IBinder transition, TransitionInfo info,
		SurfaceControl.Transaction t, IBinder mergeTarget,
		IRemoteTransitionFinishedCallback finishedCallback) {
		// TODO: hook up merge to onTaskAppeared. Until then, just ignore incoming merges.
		if (!mergeTarget.equals(mToken)) return;
		if (!mRecentsSession.merge(info, t, recents)) return;
		try {
		finishedCallback.onTransitionFinished(null /* wct */);
		} catch (RemoteException e) {
		Log.e(TAG, "Error merging transition.", e);
		}
		}
		};
		}
		@@ -159,19 +168,57 @@ public class RemoteTransitionCompat implements Parcelable {
		*/
		@VisibleForTesting
		static class RecentsControllerWrap extends RecentsAnimationControllerCompat {
		private final RecentsAnimationControllerCompat mWrapped;
		private final IRemoteTransitionFinishedCallback mFinishCB;
		private final WindowContainerToken mPausingTask;
		private final TransitionInfo mInfo;
		private RecentsAnimationControllerCompat mWrapped = null;
		private IRemoteTransitionFinishedCallback mFinishCB = null;
		private WindowContainerToken mPausingTask = null;
		private TransitionInfo mInfo = null;
		private SurfaceControl mOpeningLeash = null;

		RecentsControllerWrap(RecentsAnimationControllerCompat wrapped, TransitionInfo info,
		void setup(RecentsAnimationControllerCompat wrapped, TransitionInfo info,
		IRemoteTransitionFinishedCallback finishCB, WindowContainerToken pausingTask) {
		if (mInfo != null) {
		throw new IllegalStateException("Trying to run a new recents animation while"
		+ " recents is already active.");
		}
		mWrapped = wrapped;
		mInfo = info;
		mFinishCB = finishCB;
		mPausingTask = pausingTask;
		}

		@SuppressLint("NewApi")
		boolean merge(TransitionInfo info, SurfaceControl.Transaction t,
		RecentsAnimationListener recents) {
		TransitionInfo.Change openingTask = null;
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		final TransitionInfo.Change change = info.getChanges().get(i);
		if (change.getMode() == TRANSIT_OPEN \|\| change.getMode() == TRANSIT_TO_FRONT) {
		if (change.getTaskInfo() != null) {
		if (openingTask != null) {
		Log.w(TAG, " Expecting to merge a task-open, but got >1 opening "
		+ "tasks");
		}
		openingTask = change;
		}
		}
		}
		if (openingTask == null) return false;
		mOpeningLeash = openingTask.getLeash();
		if (openingTask.getContainer().equals(mPausingTask)) {
		// In this case, we are "returning" to the already running app, so just consume
		// the merge and do nothing.
		return true;
		}
		// We are receiving a new opening task, so convert to onTaskAppeared.
		final int layer = mInfo.getChanges().size() * 3;
		t.reparent(mOpeningLeash, mInfo.getRootLeash());
		t.setLayer(mOpeningLeash, layer);
		t.hide(mOpeningLeash);
		t.apply();
		recents.onTaskAppeared(new RemoteAnimationTargetCompat(openingTask, layer));
		return true;
		}

		@Override public ThumbnailData screenshotTask(int taskId) {
		return mWrapped != null ? mWrapped.screenshotTask(taskId) : null;
		}
		@@ -198,25 +245,42 @@ public class RemoteTransitionCompat implements Parcelable {
		@Override
		@SuppressLint("NewApi")
		public void finish(boolean toHome, boolean sendUserLeaveHint) {
		if (mFinishCB == null) {
		Log.e(TAG, "Duplicate call to finish", new RuntimeException());
		return;
		}
		if (mWrapped != null) mWrapped.finish(toHome, sendUserLeaveHint);
		try {
		if (!toHome && mPausingTask != null) {
		if (!toHome && mPausingTask != null && mOpeningLeash == null) {
		// The gesture went back to opening the app rather than continuing with
		// recents, so end the transition by moving the app back to the top.
		final WindowContainerTransaction wct = new WindowContainerTransaction();
		wct.reorder(mPausingTask, true /* onTop */);
		mFinishCB.onTransitionFinished(wct);
		} else {
		if (mOpeningLeash != null) {
		// TODO: the launcher animation should handle this
		final SurfaceControl.Transaction t = new SurfaceControl.Transaction();
		t.show(mOpeningLeash);
		t.setAlpha(mOpeningLeash, 1.f);
		t.apply();
		}
		mFinishCB.onTransitionFinished(null /* wct */);
		}
		} catch (RemoteException e) {
		Log.e("RemoteTransitionCompat", "Failed to call animation finish callback", e);
		}
		if (mWrapped != null) mWrapped.finish(toHome, sendUserLeaveHint);
		// Release surface references now. This is apparently to free GPU
		// memory while doing quick operations (eg. during CTS).
		for (int i = 0; i < mInfo.getChanges().size(); ++i) {
		mInfo.getChanges().get(i).getLeash().release();
		}
		// Reset all members.
		mWrapped = null;
		mFinishCB = null;
		mPausingTask = null;
		mInfo = null;
		mOpeningLeash = null;
		}

		@Override public void setDeferCancelUntilNextTransition(boolean defer, boolean screenshot) {