Files
Flexera-Launcher/wmshell/src/com/android/wm/shell/pip/PipAnimationController.java
T

869 lines
40 KiB
Java

/*
* Copyright (C) 2020 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.pip;
import static android.util.RotationUtils.rotateBounds;
import static android.view.Surface.ROTATION_0;
import static android.view.Surface.ROTATION_270;
import static android.view.Surface.ROTATION_90;
import static com.android.wm.shell.pip.PipTransitionController.ANIM_TYPE_ALPHA;
import static com.android.wm.shell.pip.PipTransitionController.ANIM_TYPE_BOUNDS;
import android.animation.Animator;
import android.animation.RectEvaluator;
import android.animation.ValueAnimator;
import android.annotation.IntDef;
import android.annotation.NonNull;
import android.app.AppCompatTaskInfo;
import android.app.TaskInfo;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.graphics.Point;
import android.graphics.Rect;
import android.os.SystemClock;
import android.view.Surface;
import android.view.SurfaceControl;
import android.window.TaskSnapshot;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.protolog.ProtoLog;
import com.android.launcher3.icons.IconProvider;
import com.android.wm.shell.common.pip.PipUtils;
import com.android.wm.shell.protolog.ShellProtoLogGroup;
import com.android.wm.shell.shared.animation.Interpolators;
import com.android.wm.shell.shared.pip.PipContentOverlay;
import com.android.wm.shell.transition.Transitions;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Objects;
/**
* Controller class of PiP animations (both from and to PiP mode).
*/
public class PipAnimationController {
static final float FRACTION_START = 0f;
static final float FRACTION_END = 1f;
/**
* The alpha type is set for swiping to home. But the swiped task may not enter PiP. And if
* another task enters PiP by non-swipe ways, e.g. call API in foreground or switch to 3-button
* navigation, then the alpha type is unexpected. So use a timeout to avoid applying wrong
* animation style to an unrelated task.
*/
private static final int ONE_SHOT_ALPHA_ANIMATION_TIMEOUT_MS = 800;
public static final int TRANSITION_DIRECTION_NONE = 0;
public static final int TRANSITION_DIRECTION_SAME = 1;
public static final int TRANSITION_DIRECTION_TO_PIP = 2;
public static final int TRANSITION_DIRECTION_LEAVE_PIP = 3;
public static final int TRANSITION_DIRECTION_LEAVE_PIP_TO_SPLIT_SCREEN = 4;
public static final int TRANSITION_DIRECTION_REMOVE_STACK = 5;
public static final int TRANSITION_DIRECTION_SNAP_AFTER_RESIZE = 6;
public static final int TRANSITION_DIRECTION_USER_RESIZE = 7;
public static final int TRANSITION_DIRECTION_EXPAND_OR_UNEXPAND = 8;
@IntDef(prefix = { "TRANSITION_DIRECTION_" }, value = {
TRANSITION_DIRECTION_NONE,
TRANSITION_DIRECTION_SAME,
TRANSITION_DIRECTION_TO_PIP,
TRANSITION_DIRECTION_LEAVE_PIP,
TRANSITION_DIRECTION_LEAVE_PIP_TO_SPLIT_SCREEN,
TRANSITION_DIRECTION_REMOVE_STACK,
TRANSITION_DIRECTION_SNAP_AFTER_RESIZE,
TRANSITION_DIRECTION_USER_RESIZE,
TRANSITION_DIRECTION_EXPAND_OR_UNEXPAND
})
@Retention(RetentionPolicy.SOURCE)
public @interface TransitionDirection {}
public static boolean isInPipDirection(@TransitionDirection int direction) {
return direction == TRANSITION_DIRECTION_TO_PIP;
}
public static boolean isOutPipDirection(@TransitionDirection int direction) {
return direction == TRANSITION_DIRECTION_LEAVE_PIP
|| direction == TRANSITION_DIRECTION_LEAVE_PIP_TO_SPLIT_SCREEN;
}
/** Whether the given direction represents removing PIP. */
public static boolean isRemovePipDirection(@TransitionDirection int direction) {
return direction == TRANSITION_DIRECTION_REMOVE_STACK;
}
private final PipSurfaceTransactionHelper mSurfaceTransactionHelper;
private PipTransitionAnimator mCurrentAnimator;
@PipTransitionController.AnimationType
private int mOneShotAnimationType = ANIM_TYPE_BOUNDS;
private long mLastOneShotAlphaAnimationTime;
public PipAnimationController(PipSurfaceTransactionHelper helper) {
mSurfaceTransactionHelper = helper;
}
@SuppressWarnings("unchecked")
@VisibleForTesting
public PipTransitionAnimator getAnimator(TaskInfo taskInfo, SurfaceControl leash,
Rect destinationBounds, float alphaStart, float alphaEnd) {
if (mCurrentAnimator == null) {
mCurrentAnimator = setupPipTransitionAnimator(
PipTransitionAnimator.ofAlpha(taskInfo, leash, destinationBounds, alphaStart,
alphaEnd));
} else if (mCurrentAnimator.getAnimationType() == ANIM_TYPE_ALPHA
&& Objects.equals(destinationBounds, mCurrentAnimator.getDestinationBounds())
&& mCurrentAnimator.isRunning()) {
mCurrentAnimator.updateEndValue(alphaEnd);
} else {
mCurrentAnimator.cancel();
mCurrentAnimator = setupPipTransitionAnimator(
PipTransitionAnimator.ofAlpha(taskInfo, leash, destinationBounds, alphaStart,
alphaEnd));
}
return mCurrentAnimator;
}
/**
* Construct and return an animator that animates from the {@param startBounds} to the
* {@param endBounds} with the given {@param direction}. If {@param direction} is type
* {@link PipTransitionController#ANIM_TYPE_BOUNDS}, then {@param sourceHintRect} will be used
* to animate in a better, more smooth manner. If the original bound was rotated and a reset
* needs to happen, pass in {@param startingAngle}.
*
* In the case where one wants to start animation during an intermediate animation (for example,
* if the user is currently doing a pinch-resize, and upon letting go now PiP needs to animate
* to the correct snap fraction region), then provide the base bounds, which is current PiP
* leash bounds before transformation/any animation. This is so when we try to construct
* the different transformation matrices for the animation, we are constructing this based off
* the PiP original bounds, rather than the {@param startBounds}, which is post-transformed.
*
* If non-zero {@param rotationDelta} is given, it means that the display will be rotated by
* leaving PiP to fullscreen, and the {@param endBounds} is the fullscreen bounds before the
* rotation change.
*/
@SuppressWarnings("unchecked")
@VisibleForTesting
public PipTransitionAnimator getAnimator(TaskInfo taskInfo, SurfaceControl leash,
Rect baseBounds, Rect startBounds, Rect endBounds, Rect sourceHintRect,
@PipAnimationController.TransitionDirection int direction, float startingAngle,
@Surface.Rotation int rotationDelta, boolean alwaysAnimateTaskBounds) {
if (mCurrentAnimator == null) {
mCurrentAnimator = setupPipTransitionAnimator(
PipTransitionAnimator.ofBounds(taskInfo, leash, startBounds, startBounds,
endBounds, sourceHintRect, direction, 0 /* startingAngle */,
rotationDelta, alwaysAnimateTaskBounds));
} else if (mCurrentAnimator.getAnimationType() == ANIM_TYPE_ALPHA
&& mCurrentAnimator.isRunning()) {
// If we are still animating the fade into pip, then just move the surface and ensure
// we update with the new destination bounds, but don't interrupt the existing animation
// with a new bounds
mCurrentAnimator.setDestinationBounds(endBounds);
} else if (mCurrentAnimator.getAnimationType() == ANIM_TYPE_BOUNDS
&& mCurrentAnimator.isRunning()) {
mCurrentAnimator.setDestinationBounds(endBounds);
// construct new Rect instances in case they are recycled
mCurrentAnimator.updateEndValue(new Rect(endBounds));
} else {
mCurrentAnimator.cancel();
mCurrentAnimator = setupPipTransitionAnimator(
PipTransitionAnimator.ofBounds(taskInfo, leash, baseBounds, startBounds,
endBounds, sourceHintRect, direction, startingAngle, rotationDelta,
alwaysAnimateTaskBounds));
}
return mCurrentAnimator;
}
public PipTransitionAnimator getCurrentAnimator() {
return mCurrentAnimator;
}
/** Reset animator state to prevent it from being used after its lifetime. */
public void resetAnimatorState() {
mCurrentAnimator = null;
}
private PipTransitionAnimator setupPipTransitionAnimator(PipTransitionAnimator animator) {
animator.setSurfaceTransactionHelper(mSurfaceTransactionHelper);
animator.setInterpolator(Interpolators.FAST_OUT_SLOW_IN);
animator.setFloatValues(FRACTION_START, FRACTION_END);
return animator;
}
/**
* Returns true if the PiP window is currently being animated.
*/
public boolean isAnimating() {
PipAnimationController.PipTransitionAnimator animator = getCurrentAnimator();
if (animator != null && animator.isRunning()) {
return true;
}
return false;
}
/**
* Quietly cancel the animator by removing the listeners first.
* TODO(b/275003573): deprecate this, cancelling without the proper callbacks is problematic.
*/
static void quietCancel(@NonNull ValueAnimator animator) {
animator.removeAllUpdateListeners();
animator.removeAllListeners();
animator.cancel();
}
/**
* Sets the preferred enter animation type for one time. This is typically used to set the
* animation type to {@link PipTransitionController#ANIM_TYPE_ALPHA}.
* <p>
* For example, gesture navigation would first fade out the PiP activity, and the transition
* should be responsible to animate in (such as fade in) the PiP.
*/
public void setOneShotEnterAnimationType(
@PipTransitionController.AnimationType int animationType) {
mOneShotAnimationType = animationType;
if (animationType == ANIM_TYPE_ALPHA) {
mLastOneShotAlphaAnimationTime = SystemClock.uptimeMillis();
}
}
/** Returns the preferred animation type and consumes the one-shot type if needed. */
@PipTransitionController.AnimationType
public int takeOneShotEnterAnimationType() {
final int type = mOneShotAnimationType;
if (type == ANIM_TYPE_ALPHA) {
// Restore to default type.
mOneShotAnimationType = ANIM_TYPE_BOUNDS;
if (SystemClock.uptimeMillis() - mLastOneShotAlphaAnimationTime
> ONE_SHOT_ALPHA_ANIMATION_TIMEOUT_MS) {
ProtoLog.d(ShellProtoLogGroup.WM_SHELL_PICTURE_IN_PICTURE,
"Alpha animation is expired. Use bounds animation.");
return ANIM_TYPE_BOUNDS;
}
}
return type;
}
/**
* Additional callback interface for PiP animation
*/
public static class PipAnimationCallback {
/**
* Called when PiP animation is started.
*/
public void onPipAnimationStart(TaskInfo taskInfo, PipTransitionAnimator animator) {}
/**
* Called when PiP animation is ended.
*/
public void onPipAnimationEnd(TaskInfo taskInfo, SurfaceControl.Transaction tx,
PipTransitionAnimator animator) {}
/**
* Called when PiP animation is cancelled.
*/
public void onPipAnimationCancel(TaskInfo taskInfo, PipTransitionAnimator animator) {}
}
/**
* A handler class that could register itself to apply the transaction instead of the
* animation controller doing it. For example, the menu controller can be one such handler.
*/
public static class PipTransactionHandler {
/**
* Called when the animation controller is about to apply a transaction. Allow a registered
* handler to apply the transaction instead.
*
* @return true if handled by the handler, false otherwise.
*/
public boolean handlePipTransaction(SurfaceControl leash, SurfaceControl.Transaction tx,
Rect destinationBounds, float alpha) {
return false;
}
}
/**
* Animator for PiP transition animation which supports both alpha and bounds animation.
* @param <T> Type of property to animate, either alpha (float) or bounds (Rect)
*/
public abstract static class PipTransitionAnimator<T> extends ValueAnimator implements
ValueAnimator.AnimatorUpdateListener,
ValueAnimator.AnimatorListener {
private final TaskInfo mTaskInfo;
private final SurfaceControl mLeash;
private final @PipTransitionController.AnimationType int mAnimationType;
private final Rect mDestinationBounds = new Rect();
private final Point mLeashOffset = new Point();
private T mBaseValue;
protected T mCurrentValue;
protected T mStartValue;
private T mEndValue;
private PipAnimationCallback mPipAnimationCallback;
private PipTransactionHandler mPipTransactionHandler;
private PipSurfaceTransactionHelper.SurfaceControlTransactionFactory
mSurfaceControlTransactionFactory;
private PipSurfaceTransactionHelper mSurfaceTransactionHelper;
private @TransitionDirection int mTransitionDirection;
protected PipContentOverlay mContentOverlay;
// Flag to avoid double-end
private boolean mHasRequestedEnd;
private PipTransitionAnimator(@NonNull TaskInfo taskInfo, @NonNull SurfaceControl leash,
@PipTransitionController.AnimationType int animationType,
@NonNull Rect destinationBounds, @NonNull T baseValue, @NonNull T startValue,
@NonNull T endValue) {
this(taskInfo, leash, animationType, destinationBounds, new Point(), baseValue,
startValue, endValue);
}
private PipTransitionAnimator(@NonNull TaskInfo taskInfo, @NonNull SurfaceControl leash,
@PipTransitionController.AnimationType int animationType,
@NonNull Rect destinationBounds, @NonNull Point leashOffset,
@NonNull T baseValue, @NonNull T startValue, @NonNull T endValue) {
mTaskInfo = taskInfo;
mLeash = leash;
mAnimationType = animationType;
mDestinationBounds.set(destinationBounds);
mLeashOffset.set(leashOffset);
mBaseValue = baseValue;
mStartValue = startValue;
mEndValue = endValue;
addListener(this);
addUpdateListener(this);
mSurfaceControlTransactionFactory =
new PipSurfaceTransactionHelper.VsyncSurfaceControlTransactionFactory();
mTransitionDirection = TRANSITION_DIRECTION_NONE;
}
@Override
public void onAnimationStart(Animator animation) {
mCurrentValue = mStartValue;
onStartTransaction(mLeash, mSurfaceControlTransactionFactory.getTransaction());
if (mPipAnimationCallback != null) {
mPipAnimationCallback.onPipAnimationStart(mTaskInfo, this);
}
}
@Override
public void onAnimationUpdate(ValueAnimator animation) {
if (mHasRequestedEnd) return;
applySurfaceControlTransaction(mLeash,
mSurfaceControlTransactionFactory.getTransaction(),
animation.getAnimatedFraction());
}
@Override
public void onAnimationEnd(Animator animation) {
if (mHasRequestedEnd) return;
mHasRequestedEnd = true;
mCurrentValue = mEndValue;
final SurfaceControl.Transaction tx =
mSurfaceControlTransactionFactory.getTransaction();
onEndTransaction(mLeash, tx, mTransitionDirection);
if (mPipAnimationCallback != null) {
mPipAnimationCallback.onPipAnimationEnd(mTaskInfo, tx, this);
}
mTransitionDirection = TRANSITION_DIRECTION_NONE;
}
@Override
public void onAnimationCancel(Animator animation) {
if (mPipAnimationCallback != null) {
mPipAnimationCallback.onPipAnimationCancel(mTaskInfo, this);
}
mTransitionDirection = TRANSITION_DIRECTION_NONE;
}
@Override public void onAnimationRepeat(Animator animation) {}
@VisibleForTesting
@PipTransitionController.AnimationType
public int getAnimationType() {
return mAnimationType;
}
@VisibleForTesting
public PipTransitionAnimator<T> setPipAnimationCallback(PipAnimationCallback callback) {
mPipAnimationCallback = callback;
return this;
}
PipTransitionAnimator<T> setPipTransactionHandler(PipTransactionHandler handler) {
mPipTransactionHandler = handler;
return this;
}
boolean handlePipTransaction(SurfaceControl leash, SurfaceControl.Transaction tx,
Rect destinationBounds, float alpha) {
if (mPipTransactionHandler != null) {
return mPipTransactionHandler.handlePipTransaction(
leash, tx, destinationBounds, alpha);
}
return false;
}
SurfaceControl getContentOverlayLeash() {
return mContentOverlay == null ? null : mContentOverlay.getLeash();
}
void setColorContentOverlay(Context context) {
reattachContentOverlay(new PipContentOverlay.PipColorOverlay(context));
}
void setSnapshotContentOverlay(TaskSnapshot snapshot, Rect sourceRectHint) {
reattachContentOverlay(
new PipContentOverlay.PipSnapshotOverlay(snapshot, sourceRectHint));
}
void setAppIconContentOverlay(Context context, Rect appBounds, Rect destinationBounds,
ActivityInfo activityInfo, int appIconSizePx) {
reattachContentOverlay(
new PipContentOverlay.PipAppIconOverlay(context, appBounds, destinationBounds,
new IconProvider(context).getIcon(activityInfo), appIconSizePx));
}
private void reattachContentOverlay(PipContentOverlay overlay) {
final SurfaceControl.Transaction tx =
mSurfaceControlTransactionFactory.getTransaction();
if (mContentOverlay != null) {
mContentOverlay.detach(tx);
}
mContentOverlay = overlay;
mContentOverlay.attach(tx, mLeash);
}
/**
* Clears the {@link #mContentOverlay}, this should be done after the content overlay is
* faded out, such as in {@link PipTaskOrganizer#fadeOutAndRemoveOverlay}
*/
void clearContentOverlay() {
mContentOverlay = null;
}
@VisibleForTesting
@TransitionDirection public int getTransitionDirection() {
return mTransitionDirection;
}
@VisibleForTesting
public PipTransitionAnimator<T> setTransitionDirection(@TransitionDirection int direction) {
if (direction != TRANSITION_DIRECTION_SAME) {
mTransitionDirection = direction;
}
return this;
}
T getStartValue() {
return mStartValue;
}
T getBaseValue() {
return mBaseValue;
}
@VisibleForTesting
public T getEndValue() {
return mEndValue;
}
Rect getDestinationBounds() {
return mDestinationBounds;
}
void setDestinationBounds(Rect destinationBounds) {
mDestinationBounds.set(destinationBounds);
if (mAnimationType == ANIM_TYPE_ALPHA) {
onStartTransaction(mLeash, mSurfaceControlTransactionFactory.getTransaction());
}
}
/**
* Returns the offset of the {@link #mLeash}.
*/
@NonNull
Point getLeashOffset() {
// Use copy to prevent the leash to be modified unexpectedly.
return new Point(mLeashOffset);
}
void setCurrentValue(T value) {
mCurrentValue = value;
}
boolean shouldApplyShadowRadius() {
return !isRemovePipDirection(mTransitionDirection);
}
boolean inScaleTransition() {
if (mAnimationType != ANIM_TYPE_BOUNDS) return false;
final int direction = getTransitionDirection();
return !isInPipDirection(direction) && !isOutPipDirection(direction);
}
/**
* Updates the {@link #mEndValue}.
*
* NOTE: Do not forget to call {@link #setDestinationBounds(Rect)} for bounds animation.
* This is typically used when we receive a shelf height adjustment during the bounds
* animation. In which case we can update the end bounds and keep the existing animation
* running instead of cancelling it.
*/
public void updateEndValue(T endValue) {
mEndValue = endValue;
}
@VisibleForTesting
public void setSurfaceControlTransactionFactory(
PipSurfaceTransactionHelper.SurfaceControlTransactionFactory factory) {
mSurfaceControlTransactionFactory = factory;
}
PipSurfaceTransactionHelper getSurfaceTransactionHelper() {
return mSurfaceTransactionHelper;
}
void setSurfaceTransactionHelper(PipSurfaceTransactionHelper helper) {
mSurfaceTransactionHelper = helper;
}
void onStartTransaction(SurfaceControl leash, SurfaceControl.Transaction tx) {}
void onEndTransaction(SurfaceControl leash, SurfaceControl.Transaction tx,
@TransitionDirection int transitionDirection) {}
abstract void applySurfaceControlTransaction(SurfaceControl leash,
SurfaceControl.Transaction tx, float fraction);
static PipTransitionAnimator<Float> ofAlpha(TaskInfo taskInfo, SurfaceControl leash,
Rect destinationBounds, float startValue, float endValue) {
return new PipTransitionAnimator<Float>(taskInfo, leash, ANIM_TYPE_ALPHA,
destinationBounds, startValue, startValue, endValue) {
@Override
void applySurfaceControlTransaction(SurfaceControl leash,
SurfaceControl.Transaction tx, float fraction) {
final float alpha = getStartValue() * (1 - fraction) + getEndValue() * fraction;
setCurrentValue(alpha);
getSurfaceTransactionHelper().alpha(tx, leash, alpha)
.round(tx, leash, true /* applyCornerRadius */)
.shadow(tx, leash, shouldApplyShadowRadius());
if (!handlePipTransaction(leash, tx, destinationBounds, alpha)) {
tx.apply();
}
}
@Override
void onStartTransaction(SurfaceControl leash, SurfaceControl.Transaction tx) {
if (getTransitionDirection() == TRANSITION_DIRECTION_REMOVE_STACK) {
// while removing the pip stack, no extra work needs to be done here.
return;
}
getSurfaceTransactionHelper()
.resetScale(tx, leash, getDestinationBounds())
.cropAndPosition(tx, leash, getDestinationBounds())
.round(tx, leash, true /* applyCornerRadius */)
.shadow(tx, leash, shouldApplyShadowRadius());
tx.show(leash);
tx.apply();
}
@Override
public void updateEndValue(Float endValue) {
super.updateEndValue(endValue);
mStartValue = mCurrentValue;
}
};
}
static PipTransitionAnimator<Rect> ofBounds(TaskInfo taskInfo, SurfaceControl leash,
Rect baseValue, Rect startValue, Rect endValue, Rect sourceRectHint,
@PipAnimationController.TransitionDirection int direction, float startingAngle,
@Surface.Rotation int rotationDelta, boolean alwaysAnimateTaskBounds) {
final boolean isOutPipDirection = isOutPipDirection(direction);
final boolean isInPipDirection = isInPipDirection(direction);
// Just for simplicity we'll interpolate between the source rect hint insets and empty
// insets to calculate the window crop
final Rect initialSourceValue;
final Rect mainWindowFrame = taskInfo.topActivityMainWindowFrame;
final AppCompatTaskInfo compatInfo = taskInfo.appCompatTaskInfo;
final boolean isSizeCompatOrLetterboxed = compatInfo.isTopActivityInSizeCompat()
|| compatInfo.isTopActivityLetterboxed();
// For the animation to swipe PIP to home or restore a PIP task from home, we don't
// override to the main window frame since we should animate the whole task.
final boolean shouldUseMainWindowFrame = mainWindowFrame != null
&& !alwaysAnimateTaskBounds && !isSizeCompatOrLetterboxed;
final boolean changeOrientation =
rotationDelta == ROTATION_90 || rotationDelta == ROTATION_270;
final Rect baseBounds = new Rect(baseValue);
final Rect startBounds = new Rect(startValue);
final Rect endBounds = new Rect(endValue);
if (isOutPipDirection) {
if (shouldUseMainWindowFrame && !changeOrientation) {
endBounds.set(mainWindowFrame);
}
initialSourceValue = new Rect(endBounds);
} else if (isInPipDirection) {
if (shouldUseMainWindowFrame) {
baseBounds.set(mainWindowFrame);
if (startValue.equals(baseValue)) {
// If the start value is at initial state as in PIP animation, also override
// the start bounds with nonMatchParentBounds.
startBounds.set(mainWindowFrame);
}
}
initialSourceValue = new Rect(baseBounds);
} else {
// Note that we assume the window bounds always match task bounds in PIP mode.
initialSourceValue = new Rect(baseBounds);
}
final Point leashOffset;
if (isInPipDirection) {
leashOffset = new Point(baseValue.left, baseValue.top);
} else if (isOutPipDirection) {
leashOffset = new Point(endValue.left, endValue.top);
} else {
leashOffset = new Point(baseValue.left, baseValue.top);
}
final Rect rotatedEndRect;
final Rect lastEndRect;
final Rect initialContainerRect;
if (changeOrientation) {
lastEndRect = new Rect(endBounds);
rotatedEndRect = new Rect(endBounds);
// TODO(b/375977163): polish the animation to restoring the PIP task back from
// swipe-pip-to-home. Ideally we should send the transitionInfo after reparenting
// the PIP activity back to the original task.
if (shouldUseMainWindowFrame && isOutPipDirection) {
// If we should animate the main window frame, set it to the rotatedRect
// instead. The end bounds reported by transitionInfo is the bounds before
// rotation, while main window frame is calculated after the rotation.
// Note that we only override main window frame for leaving pip animation as
// the pip activity should match parent.
rotatedEndRect.set(mainWindowFrame);
} else {
// Rotate the end bounds according to the rotation delta because the display
// will be rotated to the same orientation.
rotateBounds(rotatedEndRect, initialSourceValue, rotationDelta);
}
// Use the rect that has the same orientation as the hint rect.
initialContainerRect = isOutPipDirection ? rotatedEndRect : initialSourceValue;
} else {
rotatedEndRect = lastEndRect = null;
initialContainerRect = initialSourceValue;
}
final Rect adjustedSourceRectHint = new Rect();
if (sourceRectHint == null || sourceRectHint.isEmpty()) {
// Crop a Rect matches the aspect ratio and pivots at the center point.
// This is done for entering case only.
if (isInPipDirection(direction)) {
final float aspectRatio = endBounds.width() / (float) endBounds.height();
adjustedSourceRectHint.set(PipUtils.getPseudoSourceRectHint(
startBounds, aspectRatio));
}
} else {
adjustedSourceRectHint.set(sourceRectHint);
if (isInPipDirection(direction)
&& rotationDelta == ROTATION_0
&& taskInfo.displayCutoutInsets != null) {
// TODO: this is to special case the issues on Foldable device
// with display cutout. This aligns with what's in SwipePipToHomeAnimator.
adjustedSourceRectHint.offset(taskInfo.displayCutoutInsets.left,
taskInfo.displayCutoutInsets.top);
}
}
final Rect sourceHintRectInsets = new Rect();
if (!adjustedSourceRectHint.isEmpty()) {
sourceHintRectInsets.set(
adjustedSourceRectHint.left - initialContainerRect.left,
adjustedSourceRectHint.top - initialContainerRect.top,
initialContainerRect.right - adjustedSourceRectHint.right,
initialContainerRect.bottom - adjustedSourceRectHint.bottom);
}
final Rect zeroInsets = new Rect(0, 0, 0, 0);
// construct new Rect instances in case they are recycled
return new PipTransitionAnimator<Rect>(taskInfo, leash, ANIM_TYPE_BOUNDS, endBounds,
leashOffset, new Rect(baseBounds), new Rect(startBounds), new Rect(endBounds)) {
private final RectEvaluator mRectEvaluator = new RectEvaluator(new Rect());
private final RectEvaluator mInsetsEvaluator = new RectEvaluator(new Rect());
@Override
void applySurfaceControlTransaction(SurfaceControl leash,
SurfaceControl.Transaction tx, float fraction) {
final Rect base = getBaseValue();
final Rect start = getStartValue();
final Rect end = getEndValue();
Rect bounds = mRectEvaluator.evaluate(fraction, start, end);
if (mContentOverlay != null) {
mContentOverlay.onAnimationUpdate(tx, bounds, fraction);
}
if (rotatedEndRect != null) {
// Animate the bounds in a different orientation. It only happens when
// switching between PiP and fullscreen.
applyRotation(tx, leash, fraction, start, end);
return;
}
float angle = (1.0f - fraction) * startingAngle;
setCurrentValue(bounds);
if (inScaleTransition() || adjustedSourceRectHint.isEmpty()) {
if (isOutPipDirection) {
// Use the bounds relative to the task leash in case the leash does not
// start from (0, 0).
final Rect relativeEndBounds = new Rect(end);
final Point leashOffset = getLeashOffset();
relativeEndBounds.offset(-leashOffset.x, -leashOffset.y);
getSurfaceTransactionHelper()
.crop(tx, leash, relativeEndBounds)
.scale(tx, leash, relativeEndBounds, bounds,
false /* shouldOffset */);
} else {
// TODO(b/356277166): add support to specify sourceRectHint with
// non-match parent activity.
// If there's a PIP resize animation, we should offset the bounds to
// (0, 0) since the window bounds should match the leash bounds in PIP
// mode.
getSurfaceTransactionHelper().cropAndPosition(tx, leash, base)
.scale(tx, leash, base, bounds, angle, inScaleTransition())
.round(tx, leash, base, bounds)
.shadow(tx, leash, shouldApplyShadowRadius());
}
} else {
final Rect insets = computeInsets(fraction);
getSurfaceTransactionHelper().scaleAndCrop(tx, leash,
adjustedSourceRectHint, initialSourceValue, bounds, insets,
isInPipDirection, fraction, leashOffset);
final Rect sourceBounds = new Rect(initialContainerRect);
sourceBounds.inset(insets);
getSurfaceTransactionHelper()
.round(tx, leash, sourceBounds, bounds)
.shadow(tx, leash, shouldApplyShadowRadius());
}
if (!handlePipTransaction(leash, tx, bounds, /* alpha= */ 1f)) {
tx.apply();
}
}
private void applyRotation(SurfaceControl.Transaction tx, SurfaceControl leash,
float fraction, Rect start, Rect end) {
if (!end.equals(lastEndRect)) {
// If the end bounds are changed during animating (e.g. shelf height), the
// rotated end bounds also need to be updated.
rotatedEndRect.set(endValue);
rotateBounds(rotatedEndRect, initialSourceValue, rotationDelta);
lastEndRect.set(end);
}
final Rect bounds = mRectEvaluator.evaluate(fraction, start, rotatedEndRect);
setCurrentValue(bounds);
final Rect insets = computeInsets(fraction);
final float degree, x, y;
if (Transitions.SHELL_TRANSITIONS_ROTATION) {
if (rotationDelta == ROTATION_90) {
degree = 90 * (1 - fraction);
x = fraction * (end.left - start.left)
+ start.left + start.width() * (1 - fraction);
y = fraction * (end.top - start.top) + start.top;
} else {
degree = -90 * (1 - fraction);
x = fraction * (end.left - start.left) + start.left;
y = fraction * (end.top - start.top)
+ start.top + start.height() * (1 - fraction);
}
} else {
if (rotationDelta == ROTATION_90) {
degree = 90 * fraction;
x = fraction * (end.right - start.left) + start.left;
y = fraction * (end.top - start.top) + start.top;
} else {
degree = -90 * fraction;
x = fraction * (end.left - start.left) + start.left;
y = fraction * (end.bottom - start.top) + start.top;
}
}
final Rect sourceBounds = new Rect(initialContainerRect);
Rect relativeEndWindowFrame = null;
if (isOutPipDirection) {
relativeEndWindowFrame = rotatedEndRect;
}
if (relativeEndWindowFrame != null) {
relativeEndWindowFrame.offset(leashOffset.x, leashOffset.y);
}
sourceBounds.inset(insets);
getSurfaceTransactionHelper()
.rotateAndScaleWithCrop(tx, leash, initialContainerRect, bounds,
insets, degree, x, y, isOutPipDirection,
rotationDelta == ROTATION_270 /* clockwise */,
relativeEndWindowFrame)
.round(tx, leash, sourceBounds, bounds)
.shadow(tx, leash, shouldApplyShadowRadius());
if (!handlePipTransaction(leash, tx, bounds, 1f /* alpha */)) {
tx.apply();
}
}
private Rect computeInsets(float fraction) {
final Rect startRect = isOutPipDirection ? sourceHintRectInsets : zeroInsets;
final Rect endRect = isOutPipDirection ? zeroInsets : sourceHintRectInsets;
return mInsetsEvaluator.evaluate(fraction, startRect, endRect);
}
@Override
void onStartTransaction(SurfaceControl leash, SurfaceControl.Transaction tx) {
getSurfaceTransactionHelper()
.alpha(tx, leash, 1f)
.round(tx, leash, true /* applyCornerRadius */)
.shadow(tx, leash, shouldApplyShadowRadius());
tx.show(leash);
tx.apply();
}
@Override
void onEndTransaction(SurfaceControl leash, SurfaceControl.Transaction tx,
int transitionDirection) {
// NOTE: intentionally does not apply the transaction here.
// this end transaction should get executed synchronously with the final
// WindowContainerTransaction in task organizer
final Rect destBounds = getDestinationBounds();
getSurfaceTransactionHelper().resetScale(tx, leash, destBounds);
if (isOutPipDirection(transitionDirection)) {
// Exit pip, clear scale, position and crop.
tx.setMatrix(leash, 1, 0, 0, 1);
tx.setPosition(leash, 0, 0);
tx.setWindowCrop(leash, 0, 0);
} else {
getSurfaceTransactionHelper().cropAndPosition(tx, leash, destBounds);
}
if (mContentOverlay != null) {
clearContentOverlay();
}
}
@Override
public void updateEndValue(Rect endValue) {
super.updateEndValue(endValue);
if (mStartValue != null && mCurrentValue != null) {
mStartValue.set(mCurrentValue);
}
}
};
}
}
}