Merge "Set window crop for TaskFragment open/close animation" into sc-v2-dev

    final Transformation mTransformation = new Transformation();

    final float[] mMatrix = new float[9];

    final float[] mVecs = new float[4];

    final Rect mRect = new Rect();

    private boolean mIsFirstFrame = true;

    TaskFragmentAnimationAdapter(@NonNull Animation animation,

                mTarget.localBounds.left, mTarget.localBounds.top);

        t.setMatrix(mLeash, mTransformation.getMatrix(), mMatrix);

        t.setAlpha(mLeash, mTransformation.getAlpha());

        // Open/close animation may scale up the surface. Apply an inverse scale to the window crop

        // so that it will not be covering other windows.

        mVecs[1] = mVecs[2] = 0;

        mVecs[0] = mVecs[3] = 1;

        mTransformation.getMatrix().mapVectors(mVecs);

        mVecs[0] = 1.f / mVecs[0];

        mVecs[3] = 1.f / mVecs[3];

        final Rect clipRect = mTarget.localBounds;

        mRect.left = (int) (clipRect.left * mVecs[0] + 0.5f);

        mRect.right = (int) (clipRect.right * mVecs[0] + 0.5f);

        mRect.top = (int) (clipRect.top * mVecs[3] + 0.5f);

        mRect.bottom = (int) (clipRect.bottom * mVecs[3] + 0.5f);

        mRect.offsetTo(Math.round(mTarget.localBounds.width() * (1 - mVecs[0]) / 2.f),

                Math.round(mTarget.localBounds.height() * (1 - mVecs[3]) / 2.f));

        t.setWindowCrop(mLeash, mRect);

    }

    /** Called after animation finished. */

     * Should be used for the animation of the {@link RemoteAnimationTarget} that has size change.

     */

    static class BoundsChangeAdapter extends TaskFragmentAnimationAdapter {

        private final float[] mVecs = new float[4];

        private final Rect mRect = new Rect();

        BoundsChangeAdapter(@NonNull Animation animation, @NonNull RemoteAnimationTarget target) {

            super(animation, target);