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Commit 51d1d7c1 authored by Ben Lin's avatar Ben Lin
Browse files

PiP: Implement expand transition. 

Video: http://recall/-/gu5DjQFZPMFpwgaXdl4cV3/hJhcmBJWGG3IHgn6Vw9Xoa
Bug: 165793917
Test: Exit PiP with ENABLE_SHELL_TRANSITIONS flag on
Change-Id: I669919d44df2b1954ce3cbce9328faf10c24171f
parent fba001d9

libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java

+5 −0
Original line number Diff line number Diff line
@@ -423,6 +423,11 @@ public class PipTaskOrganizer implements ShellTaskOrganizer.TaskListener, 
        // Set the exiting state first so if there is fixed rotation later, the running animation

        // won't be interrupted by alpha animation for existing PiP.

        mState = State.EXITING_PIP;



        if (Transitions.ENABLE_SHELL_TRANSITIONS) {

            mPipTransitionController.startTransition(destinationBounds, wct);

            return;

        }

        mSyncTransactionQueue.queue(wct);

        mSyncTransactionQueue.runInSync(t -> {

            // Make sure to grab the latest source hint rect as it could have been

libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransition.java

+33 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ import static com.android.wm.shell.pip.PipAnimationController.TRANSITION_DIRECTI 
import static com.android.wm.shell.pip.PipAnimationController.TRANSITION_DIRECTION_TO_PIP;

import static com.android.wm.shell.pip.PipAnimationController.isInPipDirection;

import static com.android.wm.shell.pip.PipAnimationController.isOutPipDirection;

import static com.android.wm.shell.transition.Transitions.TRANSIT_EXIT_PIP;



import android.app.TaskInfo;

import android.content.Context;
@@ -53,6 +54,7 @@ public class PipTransition extends PipTransitionController { 
    private final int mEnterExitAnimationDuration;

    private @PipAnimationController.AnimationType int mOneShotAnimationType = ANIM_TYPE_BOUNDS;

    private Transitions.TransitionFinishCallback mFinishCallback;

    private Rect mExitDestinationBounds = new Rect();



    public PipTransition(Context context,

            PipBoundsState pipBoundsState, PipMenuController pipMenuController,
@@ -66,12 +68,28 @@ public class PipTransition extends PipTransitionController { 
                .getInteger(R.integer.config_pipResizeAnimationDuration);

    }



    @Override

    public void startTransition(Rect destinationBounds, WindowContainerTransaction out) {

        mExitDestinationBounds.set(destinationBounds);

        mTransitions.startTransition(TRANSIT_EXIT_PIP, out, this);

    }



    @Override

    public boolean startAnimation(@android.annotation.NonNull IBinder transition,

            @android.annotation.NonNull TransitionInfo info,

            @android.annotation.NonNull SurfaceControl.Transaction startTransaction,

            @android.annotation.NonNull SurfaceControl.Transaction finishTransaction,

            @android.annotation.NonNull Transitions.TransitionFinishCallback finishCallback) {



        if (info.getType() == TRANSIT_EXIT_PIP && info.getChanges().size() == 1) {

            final TransitionInfo.Change change = info.getChanges().get(0);

            mFinishCallback = finishCallback;

            boolean success = startExpandAnimation(change.getTaskInfo(), change.getLeash(),

                    new Rect(mExitDestinationBounds));

            mExitDestinationBounds.setEmpty();

            return success;

        }



        for (int i = info.getChanges().size() - 1; i >= 0; --i) {

            final TransitionInfo.Change change = info.getChanges().get(i);

            if (change.getTaskInfo() != null
@@ -109,6 +127,21 @@ public class PipTransition extends PipTransitionController { 
        finishResizeForMenu(destinationBounds);

    }



    private boolean startExpandAnimation(final TaskInfo taskInfo, final SurfaceControl leash,

            final Rect destinationBounds) {

        PipAnimationController.PipTransitionAnimator animator =

                mPipAnimationController.getAnimator(taskInfo, leash, mPipBoundsState.getBounds(),

                        mPipBoundsState.getBounds(), destinationBounds, null,

                        TRANSITION_DIRECTION_LEAVE_PIP, 0 /* startingAngle */, Surface.ROTATION_0);



        animator.setTransitionDirection(TRANSITION_DIRECTION_LEAVE_PIP)

                .setPipAnimationCallback(mPipAnimationCallback)

                .setDuration(mEnterExitAnimationDuration)

                .start();



        return true;

    }



    private boolean startEnterAnimation(final TaskInfo taskInfo, final SurfaceControl leash,

            final SurfaceControl.Transaction startTransaction,

            final SurfaceControl.Transaction finishTransaction) {

libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransitionController.java

+10 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ import android.graphics.Rect; 
import android.os.Handler;

import android.os.Looper;

import android.view.SurfaceControl;

import android.window.WindowContainerTransaction;



import com.android.wm.shell.ShellTaskOrganizer;

import com.android.wm.shell.transition.Transitions;
@@ -46,6 +47,7 @@ public abstract class PipTransitionController implements Transitions.TransitionH 
    protected final PipBoundsState mPipBoundsState;

    protected final ShellTaskOrganizer mShellTaskOrganizer;

    protected final PipMenuController mPipMenuController;

    protected final Transitions mTransitions;

    private final Handler mMainHandler;

    private final List<PipTransitionCallback> mPipTransitionCallbacks = new ArrayList<>();
@@ -98,6 +100,13 @@ public abstract class PipTransitionController implements Transitions.TransitionH 
            SurfaceControl.Transaction tx) {

    }



    /**

     * Called when the Shell wants to starts a transition/animation.

     */

    public void startTransition(Rect destinationBounds, WindowContainerTransaction out) {

        // Default implementation does nothing.

    }



    public PipTransitionController(PipBoundsState pipBoundsState,

            PipMenuController pipMenuController, PipBoundsAlgorithm pipBoundsAlgorithm,

            PipAnimationController pipAnimationController, Transitions transitions,
@@ -107,6 +116,7 @@ public abstract class PipTransitionController implements Transitions.TransitionH 
        mShellTaskOrganizer = shellTaskOrganizer;

        mPipBoundsAlgorithm = pipBoundsAlgorithm;

        mPipAnimationController = pipAnimationController;

        mTransitions = transitions;

        mMainHandler = new Handler(Looper.getMainLooper());

        if (Transitions.ENABLE_SHELL_TRANSITIONS) {

            transitions.addHandler(this);

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

+3 −0
Original line number Diff line number Diff line
@@ -77,6 +77,9 @@ public class Transitions implements RemoteCallable<Transitions> { 
    /** Transition type for launching 2 tasks simultaneously. */

    public static final int TRANSIT_SPLIT_SCREEN_PAIR_OPEN = TRANSIT_FIRST_CUSTOM + 2;



    /** Transition type for exiting PIP via the Shell, either via Expand or Dismiss. */

    public static final int TRANSIT_EXIT_PIP = TRANSIT_FIRST_CUSTOM + 3;



    private final WindowOrganizer mOrganizer;

    private final Context mContext;

    private final ShellExecutor mMainExecutor;