Merge "Hand off gesture nav animations to registered remotes." into main
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 95e7737..21c4d8c 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -56,9 +56,11 @@
 import static com.android.quickstep.GestureState.STATE_RECENTS_ANIMATION_STARTED;
 import static com.android.quickstep.GestureState.STATE_RECENTS_SCROLLING_FINISHED;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
+import static com.android.quickstep.TaskViewUtils.extractTargetsAndStates;
 import static com.android.quickstep.util.ActiveGestureErrorDetector.GestureEvent.EXPECTING_TASK_APPEARED;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
+import static com.android.wm.shell.shared.ShellSharedConstants.KEY_EXTRA_SHELL_CAN_HAND_OFF_ANIMATION;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -77,6 +79,7 @@
 import android.os.IBinder;
 import android.os.SystemClock;
 import android.util.Log;
+import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
@@ -90,6 +93,7 @@
 import android.widget.Toast;
 import android.window.DesktopModeFlags;
 import android.window.PictureInPictureSurfaceTransaction;
+import android.window.WindowAnimationState;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -143,6 +147,7 @@
 import com.android.quickstep.views.RecentsViewContainer;
 import com.android.quickstep.views.TaskContainer;
 import com.android.quickstep.views.TaskView;
+import com.android.systemui.animation.TransitionAnimator;
 import com.android.systemui.contextualeducation.GestureType;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -156,6 +161,8 @@
 import com.android.wm.shell.shared.desktopmode.DesktopModeStatus;
 import com.android.wm.shell.shared.startingsurface.SplashScreenExitAnimationUtils;
 
+import kotlin.Unit;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -165,8 +172,6 @@
 import java.util.OptionalInt;
 import java.util.function.Consumer;
 
-import kotlin.Unit;
-
 /**
  * Handles the navigation gestures when Launcher is the default home activity.
  */
@@ -347,6 +352,9 @@
     // Indicates whether the divider is shown, only used when split screen is activated.
     private boolean mIsDividerShown = true;
     private boolean mStartMovingTasks;
+    // Whether the animation to home should be handed off to another handler once the gesture is
+    // committed.
+    protected boolean mHandOffAnimationToHome = false;
 
     @Nullable
     private RemoteAnimationTargets.ReleaseCheck mSwipePipToHomeReleaseCheck = null;
@@ -945,6 +953,10 @@
         mSwipePipToHomeReleaseCheck = new RemoteAnimationTargets.ReleaseCheck();
         mSwipePipToHomeReleaseCheck.setCanRelease(true);
         mRecentsAnimationTargets.addReleaseCheck(mSwipePipToHomeReleaseCheck);
+        if (TransitionAnimator.Companion.longLivedReturnAnimationsEnabled()) {
+            mHandOffAnimationToHome =
+                    targets.extras.getBoolean(KEY_EXTRA_SHELL_CAN_HAND_OFF_ANIMATION, false);
+        }
 
         // Only initialize the device profile, if it has not been initialized before, as in some
         // configurations targets.homeContentInsets may not be correct.
@@ -1629,6 +1641,10 @@
                 }
                 windowAnim = createWindowAnimationToHome(start, homeAnimFactory);
 
+                if (mHandOffAnimationToHome) {
+                    handOffAnimation(velocityPxPerMs);
+                }
+
                 windowAnim[0].addAnimatorListener(new AnimationSuccessListener() {
                     @Override
                     public void onAnimationSuccess(Animator animator) {
@@ -1711,6 +1727,19 @@
         }
     }
 
+    private void handOffAnimation(PointF velocityPxPerMs) {
+        if (!TransitionAnimator.Companion.longLivedReturnAnimationsEnabled()
+                || mRecentsAnimationController == null) {
+            return;
+        }
+
+        Pair<RemoteAnimationTarget[], WindowAnimationState[]> targetsAndStates =
+                extractTargetsAndStates(mRemoteTargetHandles, velocityPxPerMs);
+        mRecentsAnimationController.handOffAnimation(
+                targetsAndStates.first, targetsAndStates.second);
+        ActiveGestureProtoLogProxy.logHandOffAnimation();
+    }
+
     private int calculateWindowRotation(RemoteAnimationTarget runningTaskTarget,
             RecentsOrientedState orientationState) {
         if (runningTaskTarget.rotationChange != 0) {
diff --git a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
index dacafd4..6087dc2 100644
--- a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
+++ b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
@@ -46,7 +46,6 @@
 import com.android.launcher3.views.FloatingIconView;
 import com.android.launcher3.views.FloatingView;
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
-import com.android.quickstep.fallback.window.RecentsWindowManager;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.ScalingWorkspaceRevealAnim;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
@@ -54,6 +53,7 @@
 import com.android.quickstep.views.FloatingWidgetView;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
+import com.android.systemui.animation.TransitionAnimator;
 import com.android.systemui.shared.system.InputConsumerController;
 
 import java.util.Collections;
@@ -108,7 +108,9 @@
 
         mContainer.getRootView().setForceHideBackArrow(true);
 
-        if (!canUseWorkspaceView || appCanEnterPip || mIsSwipeForSplit) {
+        boolean handOffAnimation = TransitionAnimator.Companion.longLivedReturnAnimationsEnabled()
+                && mHandOffAnimationToHome;
+        if (handOffAnimation || !canUseWorkspaceView || appCanEnterPip || mIsSwipeForSplit) {
             return new LauncherHomeAnimationFactory() {
 
                 @Nullable
diff --git a/quickstep/src/com/android/quickstep/RecentsAnimationController.java b/quickstep/src/com/android/quickstep/RecentsAnimationController.java
index 60fcff8..145773d 100644
--- a/quickstep/src/com/android/quickstep/RecentsAnimationController.java
+++ b/quickstep/src/com/android/quickstep/RecentsAnimationController.java
@@ -21,9 +21,11 @@
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.util.Log;
+import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
 import android.view.WindowManagerGlobal;
 import android.window.PictureInPictureSurfaceTransaction;
+import android.window.WindowAnimationState;
 
 import androidx.annotation.UiThread;
 
@@ -32,6 +34,7 @@
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.RunnableList;
 import com.android.quickstep.util.ActiveGestureProtoLogProxy;
+import com.android.systemui.animation.TransitionAnimator;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 import com.android.systemui.shared.system.RecentsAnimationControllerCompat;
@@ -90,6 +93,16 @@
     }
 
     @UiThread
+    public void handOffAnimation(RemoteAnimationTarget[] targets, WindowAnimationState[] states) {
+        if (TransitionAnimator.Companion.longLivedReturnAnimationsEnabled()) {
+            UI_HELPER_EXECUTOR.execute(() -> mController.handOffAnimation(targets, states));
+        } else {
+            Log.e(TAG, "Tried to hand off the animation, but the feature is disabled",
+                    new Exception());
+        }
+    }
+
+    @UiThread
     public void finishAnimationToHome() {
         finishController(true /* toRecents */, null, false /* sendUserLeaveHint */);
     }
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 07ee479..783c87c 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -47,12 +47,15 @@
 import android.content.Context;
 import android.graphics.Matrix;
 import android.graphics.Matrix.ScaleToFit;
+import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
+import android.util.Pair;
 import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
 import android.view.View;
 import android.window.TransitionInfo;
+import android.window.WindowAnimationState;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -784,4 +787,43 @@
         animatorHandler.accept(dockFadeAnimator);
         return dockFadeAnimator;
     }
+
+    /**
+     * Creates an array of {@link RemoteAnimationTarget}s and a matching array of
+     * {@link WindowAnimationState}s from the provided handles.
+     * Important: the ordering of the two arrays is the same, so the state at each index of the
+     * second applies to the target in the same index of the first.
+     *
+     * @param handles The handles wrapping each target.
+     * @param velocityPxPerMs The current velocity of the target animations.
+     */
+    @NonNull
+    public static Pair<RemoteAnimationTarget[], WindowAnimationState[]> extractTargetsAndStates(
+            @NonNull RemoteTargetHandle[] handles, @NonNull PointF velocityPxPerMs) {
+        RemoteAnimationTarget[] targets = new RemoteAnimationTarget[handles.length];
+        WindowAnimationState[] animationStates = new WindowAnimationState[handles.length];
+        long timestamp = System.currentTimeMillis();
+
+        for (int i = 0; i < handles.length; i++) {
+            targets[i] = handles[i].getTransformParams().getTargetSet().apps[i];
+
+            TaskViewSimulator taskViewSimulator = handles[i].getTaskViewSimulator();
+            RectF startRect = taskViewSimulator.getCurrentRect();
+            float cornerRadius = taskViewSimulator.getCurrentCornerRadius();
+
+            WindowAnimationState state = new WindowAnimationState();
+            state.timestamp = timestamp;
+            state.bounds = new RectF(
+                    startRect.left, startRect.top, startRect.right, startRect.bottom);
+            state.topLeftRadius = cornerRadius;
+            state.topRightRadius = cornerRadius;
+            state.bottomRightRadius = cornerRadius;
+            state.bottomLeftRadius = cornerRadius;
+            state.velocityPxPerMs = velocityPxPerMs;
+
+            animationStates[i] = state;
+        }
+
+        return new Pair<>(targets, animationStates);
+    }
 }
diff --git a/quickstep/src_protolog/com/android/quickstep/util/ActiveGestureProtoLogProxy.java b/quickstep/src_protolog/com/android/quickstep/util/ActiveGestureProtoLogProxy.java
index f43a125..0091036 100644
--- a/quickstep/src_protolog/com/android/quickstep/util/ActiveGestureProtoLogProxy.java
+++ b/quickstep/src_protolog/com/android/quickstep/util/ActiveGestureProtoLogProxy.java
@@ -96,6 +96,12 @@
                 + "force finish recents animation complete; clearing state callback.");
     }
 
+    public static void logHandOffAnimation() {
+        ActiveGestureLog.INSTANCE.addLog("AbsSwipeUpHandler.handOffAnimation");
+        if (!enableActiveGestureProtoLog()) return;
+        ProtoLog.d(ACTIVE_GESTURE_LOG, "AbsSwipeUpHandler.handOffAnimation");
+    }
+
     public static void logFinishRecentsAnimationOnTasksAppeared() {
         ActiveGestureLog.INSTANCE.addLog("finishRecentsAnimationOnTasksAppeared");
         if (!enableActiveGestureProtoLog()) return;
diff --git a/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java b/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
index 6b95f8d..970bdec 100644
--- a/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
+++ b/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
@@ -17,6 +17,7 @@
 package com.android.quickstep;
 
 import static com.android.quickstep.AbsSwipeUpHandler.STATE_HANDLER_INVALIDATED;
+import static com.android.wm.shell.shared.ShellSharedConstants.KEY_EXTRA_SHELL_CAN_HAND_OFF_ANIMATION;
 
 import static junit.framework.TestCase.assertFalse;
 import static junit.framework.TestCase.assertTrue;
@@ -28,6 +29,7 @@
 import static org.mockito.Mockito.atLeast;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -40,6 +42,9 @@
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.SystemClock;
+import android.platform.test.annotations.DisableFlags;
+import android.platform.test.annotations.EnableFlags;
+import android.platform.test.flag.junit.SetFlagsRule;
 import android.view.RemoteAnimationTarget;
 import android.view.SurfaceControl;
 import android.view.ViewTreeObserver;
@@ -58,6 +63,7 @@
 import com.android.quickstep.util.ContextInitListener;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.RecentsViewContainer;
+import com.android.systemui.shared.Flags;
 import com.android.systemui.shared.system.InputConsumerController;
 
 import org.junit.Before;
@@ -103,14 +109,8 @@
             /* startBounds= */ null,
             /* taskInfo= */ mRunningTaskInfo,
             /* allowEnterPip= */ false);
-    protected final RecentsAnimationTargets mRecentsAnimationTargets = new RecentsAnimationTargets(
-            new RemoteAnimationTarget[] {mRemoteAnimationTarget},
-            new RemoteAnimationTarget[] {mRemoteAnimationTarget},
-            new RemoteAnimationTarget[] {mRemoteAnimationTarget},
-            /* homeContentInsets= */ new Rect(),
-            /* minimizedHomeBounds= */ null,
-            new Bundle());
 
+    protected RecentsAnimationTargets mRecentsAnimationTargets;
     protected TaskAnimationManager mTaskAnimationManager;
     protected RecentsAnimationDeviceState mRecentsAnimationDeviceState;
 
@@ -127,6 +127,22 @@
     @Rule
     public final MockitoRule mMockitoRule = MockitoJUnit.rule();
 
+    @Rule
+    public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+    @Before
+    public void setUpAnimationTargets() {
+        Bundle extras = new Bundle();
+        extras.putBoolean(KEY_EXTRA_SHELL_CAN_HAND_OFF_ANIMATION, true);
+        mRecentsAnimationTargets = new RecentsAnimationTargets(
+                new RemoteAnimationTarget[] {mRemoteAnimationTarget},
+                new RemoteAnimationTarget[] {mRemoteAnimationTarget},
+                new RemoteAnimationTarget[] {mRemoteAnimationTarget},
+                /* homeContentInsets= */ new Rect(),
+                /* minimizedHomeBounds= */ null,
+                extras);
+    }
+
     @Before
     public void setUpRunningTaskInfo() {
         mRunningTaskInfo.baseIntent = new Intent(Intent.ACTION_MAIN)
@@ -237,6 +253,30 @@
         });
     }
 
+    @EnableFlags({Flags.FLAG_RETURN_ANIMATION_FRAMEWORK_LIBRARY,
+            Flags.FLAG_RETURN_ANIMATION_FRAMEWORK_LONG_LIVED})
+    @Test
+    public void testHomeGesture_handsOffAnimation() {
+        createSwipeUpHandlerForGesture(GestureState.GestureEndTarget.HOME);
+
+        runOnMainSync(() -> {
+            verify(mRecentsAnimationController).handOffAnimation(any(), any());
+            verifyRecentsAnimationFinishedAndCallCallback();
+        });
+    }
+
+    @DisableFlags({Flags.FLAG_RETURN_ANIMATION_FRAMEWORK_LIBRARY,
+            Flags.FLAG_RETURN_ANIMATION_FRAMEWORK_LONG_LIVED})
+    @Test
+    public void testHomeGesture_doesNotHandOffAnimation_withFlagsDisabled() {
+        createSwipeUpHandlerForGesture(GestureState.GestureEndTarget.HOME);
+
+        runOnMainSync(() -> {
+            verify(mRecentsAnimationController, never()).handOffAnimation(any(), any());
+            verifyRecentsAnimationFinishedAndCallCallback();
+        });
+    }
+
     @Test
     public void testHomeGesture_invalidatesHandlerAfterParallelAnim() {
         ValueAnimator parallelAnim = new ValueAnimator();