From 86a2f911019c9f9f4b7ffc4d9489657d27b5ace8 Mon Sep 17 00:00:00 2001
From: Sunny Goyal <sunnygoyal@google.com>
Date: Thu, 7 May 2020 02:15:56 -0700
Subject: [PATCH] Using TaskViewSimulator for both Launcher and fallback
 recents

Fixing fling to home animation in landscape and multi-window orientation

Bug: 155896573
Bug: 155816922
Change-Id: I5fdff8694eced415978345b026858f5167c2a198
---
 .../android/quickstep/BaseSwipeUpHandler.java | 358 ++++++++++--------
 .../quickstep/FallbackActivityInterface.java  |  37 --
 .../quickstep/FallbackSwipeHandler.java       |  31 +-
 .../quickstep/LauncherActivityInterface.java  |  65 ----
 .../quickstep/LauncherSwipeHandler.java       | 130 +++----
 .../util/AppWindowAnimationHelper.java        |  10 -
 .../quickstep/util/TaskViewSimulator.java     |  51 ++-
 .../quickstep/util/TransformParams.java       |  32 --
 .../quickstep/BaseActivityInterface.java      |  36 --
 .../quickstep/util/RecentsOrientedState.java  |  19 -
 10 files changed, 311 insertions(+), 458 deletions(-)

diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
index ea0d84036c..f76b18b920 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
@@ -15,6 +15,8 @@
  */
 package com.android.quickstep;
 
+import static com.android.launcher3.LauncherState.BACKGROUND_APP;
+import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.ACCEL_1_5;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
@@ -23,9 +25,13 @@ import static com.android.launcher3.util.VibratorWrapper.OVERVIEW_HAPTIC;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
 
 import android.animation.Animator;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Matrix;
+import android.graphics.Matrix.ScaleToFit;
 import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
@@ -35,32 +41,34 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.view.animation.Interpolator;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.VibratorWrapper;
 import com.android.launcher3.views.FloatingIconView;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
 import com.android.quickstep.RecentsAnimationCallbacks.RecentsAnimationListener;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.ActivityInitListener;
-import com.android.quickstep.util.AppWindowAnimationHelper;
-import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
+import com.android.quickstep.util.TransformParams.BuilderProxy;
+import com.android.quickstep.util.WindowSizeStrategy;
 import com.android.quickstep.views.RecentsView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.InputConsumerController;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
+import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 import java.util.ArrayList;
 import java.util.function.Consumer;
@@ -93,7 +101,9 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected final BaseActivityInterface<T> mActivityInterface;
     protected final InputConsumerController mInputConsumer;
 
-    protected AppWindowAnimationHelper mAppWindowAnimationHelper;
+    protected final TaskViewSimulator mTaskViewSimulator;
+    private AnimatorPlaybackController mWindowTransitionController;
+
     protected final TransformParams mTransformParams = new TransformParams();
 
     // Shift in the range of [0, 1].
@@ -113,7 +123,6 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected T mActivity;
     protected Q mRecentsView;
     protected DeviceProfile mDp;
-    private final int mPageSpacing;
 
     protected Runnable mGestureEndCallback;
 
@@ -122,18 +131,16 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected boolean mCanceled;
     protected int mLastStartedTaskId = -1;
 
-    private RecentsOrientedState mOrientedState;
-
     protected BaseSwipeUpHandler(Context context, RecentsAnimationDeviceState deviceState,
-            GestureState gestureState, InputConsumerController inputConsumer) {
+            GestureState gestureState, InputConsumerController inputConsumer,
+            WindowSizeStrategy windowSizeStrategy) {
         mContext = context;
         mDeviceState = deviceState;
         mGestureState = gestureState;
         mActivityInterface = gestureState.getActivityInterface();
         mActivityInitListener = mActivityInterface.createActivityInitListener(this::onActivityInit);
         mInputConsumer = inputConsumer;
-        mAppWindowAnimationHelper = new AppWindowAnimationHelper(context);
-        mPageSpacing = context.getResources().getDimensionPixelSize(R.dimen.recents_page_spacing);
+        mTaskViewSimulator = new TaskViewSimulator(context, windowSizeStrategy);
     }
 
     /**
@@ -193,7 +200,6 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
                 updateFinalShift();
             }
         });
-        mRecentsView.setAppWindowAnimationHelper(mAppWindowAnimationHelper);
         runOnRecentsAnimationStart(() ->
                 mRecentsView.setRecentsAnimationTargets(mRecentsAnimationController,
                         mRecentsAnimationTargets));
@@ -247,36 +253,29 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
         return mRecentsAnimationTargets != null && mRecentsAnimationTargets.hasTargets();
     }
 
-    protected void updateSource(Rect stackBounds, RemoteAnimationTargetCompat runningTarget) {
-        mAppWindowAnimationHelper.updateSource(stackBounds, runningTarget);
-    }
-
     @Override
     public void onRecentsAnimationStart(RecentsAnimationController recentsAnimationController,
             RecentsAnimationTargets targets) {
         mRecentsAnimationController = recentsAnimationController;
         mRecentsAnimationTargets = targets;
         DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(mContext).getDeviceProfile(mContext);
-        final Rect overviewStackBounds;
         RemoteAnimationTargetCompat runningTaskTarget = targets.findTask(
                 mGestureState.getRunningTaskId());
 
         if (targets.minimizedHomeBounds != null && runningTaskTarget != null) {
-            overviewStackBounds = mActivityInterface
+            Rect overviewStackBounds = mActivityInterface
                     .getOverviewWindowBounds(targets.minimizedHomeBounds, runningTaskTarget);
             dp = dp.getMultiWindowProfile(mContext, overviewStackBounds);
         } else {
             // If we are not in multi-window mode, home insets should be same as system insets.
             dp = dp.copy(mContext);
-            overviewStackBounds = getStackBounds(dp);
         }
         dp.updateInsets(targets.homeContentInsets);
         dp.updateIsSeascape(mContext);
         if (runningTaskTarget != null) {
-            updateSource(overviewStackBounds, runningTaskTarget);
+            mTaskViewSimulator.setPreview(runningTaskTarget);
         }
 
-        mAppWindowAnimationHelper.prepareAnimation(dp);
         initTransitionEndpoints(dp);
 
         // Notify when the animation starts
@@ -338,7 +337,8 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             return new Rect(loc[0], loc[1], loc[0] + rootView.getWidth(),
                     loc[1] + rootView.getHeight());
         } else {
-            return new Rect(0, 0, dp.widthPx, dp.heightPx);
+            return new Rect(dp.windowX, dp.windowY,
+                    dp.windowX + dp.widthPx, dp.windowY + dp.heightPx);
         }
     }
 
@@ -348,25 +348,6 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
         mTransitionDragLength = mActivityInterface.getSwipeUpDestinationAndLength(
                 dp, mContext, TEMP_RECT);
 
-        if (!dp.isMultiWindowMode) {
-            // When updating the target rect, also update the home bounds since the location on
-            // screen of the launcher window may be stale (position is not updated until first
-            // traversal after the window is resized).  We only do this for non-multiwindow because
-            // we otherwise use the minimized home bounds provided by the system.
-            mAppWindowAnimationHelper.updateHomeBounds(getStackBounds(dp));
-        }
-        int displayRotation = 0;
-        if (mOrientedState != null && mOrientedState.isMultipleOrientationSupportedByDevice()) {
-            // TODO(b/150300347): The first recents animation after launcher is started with the
-            //  foreground app not in landscape will look funky until that bug is fixed
-            displayRotation = mOrientedState.getDisplayRotation();
-
-            RectF tempRectF = new RectF(TEMP_RECT);
-            mOrientedState.mapRectFromRotation(displayRotation,
-                    tempRectF, dp.widthPx, dp.heightPx);
-            tempRectF.roundOut(TEMP_RECT);
-        }
-        mAppWindowAnimationHelper.updateTargetRect(TEMP_RECT);
         if (mDeviceState.isFullyGesturalNavMode()) {
             // We can drag all the way to the top of the screen.
             mDragLengthFactor = (float) dp.heightPx / mTransitionDragLength;
@@ -375,6 +356,24 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             mDragLengthFactorStartPullback = dragFactorStartAndMaxProgress.first;
             mDragLengthFactorMaxPullback = dragFactorStartAndMaxProgress.second;
         }
+
+        mTaskViewSimulator.setDp(dp);
+        mTaskViewSimulator.setLayoutRotation(
+                mDeviceState.getCurrentActiveRotation(),
+                mDeviceState.getDisplayRotation());
+
+        AnimatorSet anim = new AnimatorSet();
+        anim.setDuration(mTransitionDragLength * 2);
+        anim.setInterpolator(t -> t * mDragLengthFactor);
+        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.recentsViewScale,
+                AnimatedFloat.VALUE,
+                mTaskViewSimulator.getFullScreenScale(), 1));
+        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.fullScreenProgress,
+                AnimatedFloat.VALUE,
+                BACKGROUND_APP.getOverviewFullscreenProgress(),
+                OVERVIEW.getOverviewFullscreenProgress()));
+        mWindowTransitionController =
+                AnimatorPlaybackController.wrap(anim, mTransitionDragLength * 2);
     }
 
     /**
@@ -385,9 +384,6 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected boolean onActivityInit(Boolean alreadyOnHome) {
         T createdActivity = mActivityInterface.getCreatedActivity();
         if (createdActivity != null) {
-            mOrientedState = ((RecentsView) createdActivity.getOverviewPanel())
-                .getPagedViewOrientedState();
-            mAppWindowAnimationHelper = new AppWindowAnimationHelper(mOrientedState, mContext);
             initTransitionEndpoints(InvariantDeviceProfile.INSTANCE.get(mContext)
                 .getDeviceProfile(mContext));
         }
@@ -436,34 +432,21 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     }
 
     /**
-     * Applies the transform on the recents animation without any additional null checks
+     * Applies the transform on the recents animation
      */
-    protected void applyTransformUnchecked() {
-        float shift = mCurrentShift.value;
-        float offset = mRecentsView == null ? 0 : mRecentsView.getScrollOffsetScaled();
-        float taskSize = getOrientationHandler()
-            .getPrimarySize(mAppWindowAnimationHelper.getTargetRect());
-        float offsetScale = getTaskCurveScaleForOffset(offset, taskSize);
-        mTransformParams
-                .setProgress(shift)
-                .setOffset(offset)
-                .setOffsetScale(offsetScale)
-                .setTargetSet(mRecentsAnimationTargets);
-        mAppWindowAnimationHelper.applyTransform(mTransformParams);
-    }
+    protected void applyWindowTransform() {
+        if (mWindowTransitionController != null) {
+            float progress = mCurrentShift.value / mDragLengthFactor;
+            mWindowTransitionController.setPlayFraction(progress);
+            mTransformParams.setTargetSet(mRecentsAnimationTargets);
 
-    private float getTaskCurveScaleForOffset(float offset, float taskSize) {
-        int dpPixel = getOrientationHandler().getShortEdgeLength(mDp);
-        float distanceToReachEdge = dpPixel / 2 + taskSize / 2 + mPageSpacing;
-        float interpolation = Math.min(1, offset / distanceToReachEdge);
-        return TaskView.getCurveScaleForInterpolation(interpolation);
+            mTaskViewSimulator.setScroll(mRecentsView == null ? 0 : mRecentsView.getScrollOffset());
+            mTaskViewSimulator.apply(mTransformParams);
+        }
     }
 
     protected PagedOrientationHandler getOrientationHandler() {
-        if (mOrientedState == null) {
-            return PagedOrientationHandler.PORTRAIT;
-        }
-        return mOrientedState.getOrientationHandler();
+        return mTaskViewSimulator.getOrientationState().getOrientationHandler();
     }
 
     /**
@@ -474,102 +457,40 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
     protected RectFSpringAnim createWindowAnimationToHome(float startProgress,
             HomeAnimationFactory homeAnimationFactory) {
         final RectF targetRect = homeAnimationFactory.getWindowTargetRect();
-        final View floatingView = homeAnimationFactory.getFloatingView();
-        final boolean isFloatingIconView = floatingView instanceof FloatingIconView;
-        final RectF startRect = new RectF(mAppWindowAnimationHelper.applyTransform(
-                mTransformParams.setProgress(startProgress)
-                    .setTargetSet(mRecentsAnimationTargets)));
-        if (isFloatingIconView) {
-            mOrientedState.mapInverseRectFromNormalOrientation(
-                    startRect, mDp.widthPx, mDp.heightPx);
-        }
+        final FloatingIconView fiv = homeAnimationFactory.mIconView;
+        final boolean isFloatingIconView = fiv != null;
+
+        mWindowTransitionController.setPlayFraction(startProgress / mDragLengthFactor);
+        mTaskViewSimulator.apply(mTransformParams
+                .setProgress(startProgress)
+                .setTargetSet(mRecentsAnimationTargets));
+        RectF cropRectF = new RectF(mTaskViewSimulator.getCurrentCropRect());
+
+        // Matrix to map a rect in Launcher space to window space
+        Matrix homeToWindowPositionMap = new Matrix();
+        mTaskViewSimulator.applyWindowToHomeRotation(homeToWindowPositionMap);
+
+        final RectF startRect = new RectF(cropRectF);
+        mTaskViewSimulator.getCurrentMatrix().mapRect(startRect);
+        // Move the startRect to Launcher space as floatingIconView runs in Launcher
+        Matrix windowToHomePositionMap = new Matrix();
+        homeToWindowPositionMap.invert(windowToHomePositionMap);
+        windowToHomePositionMap.mapRect(startRect);
+
         RectFSpringAnim anim = new RectFSpringAnim(startRect, targetRect, mContext);
         if (isFloatingIconView) {
-            FloatingIconView fiv = (FloatingIconView) floatingView;
             anim.addAnimatorListener(fiv);
             fiv.setOnTargetChangeListener(anim::onTargetPositionChanged);
             fiv.setFastFinishRunnable(anim::end);
         }
 
-        AnimatorPlaybackController homeAnim = homeAnimationFactory.createActivityAnimationToHome();
-
-        // End on a "round-enough" radius so that the shape reveal doesn't have to do too much
-        // rounding at the end of the animation.
-        float startRadius = mAppWindowAnimationHelper.getCurrentCornerRadius();
-        float endRadius = startRect.width() / 6f;
-
-        float startTransformProgress = mTransformParams.getProgress();
-        float endTransformProgress = 1;
-
-        // We want the window alpha to be 0 once this threshold is met, so that the
-        // FolderIconView can be seen morphing into the icon shape.
-        final float windowAlphaThreshold = isFloatingIconView ? 1f - SHAPE_PROGRESS_DURATION : 1f;
-        final RectF rotatedRect = new RectF();
-        anim.addOnUpdateListener(new RectFSpringAnim.OnUpdateListener() {
-
-            @Override
-            public void onUpdate(RectF currentRect, float progress) {
-                homeAnim.setPlayFraction(progress);
-
-                rotatedRect.set(currentRect);
-                if (isFloatingIconView) {
-                    mOrientedState.mapRectFromNormalOrientation(
-                            rotatedRect, mDp.widthPx, mDp.heightPx);
-                    mTransformParams.setCornerRadius(endRadius * progress + startRadius
-                        * (1f - progress));
-                }
-                mTransformParams.setProgress(
-                    Utilities.mapRange(progress, startTransformProgress, endTransformProgress))
-                    .setCurrentRect(rotatedRect)
-                    .setTargetAlpha(getWindowAlpha(progress));
-                mAppWindowAnimationHelper.applyTransform(mTransformParams);
-
-                if (isFloatingIconView) {
-                    ((FloatingIconView) floatingView).update(currentRect, 1f, progress,
-                            windowAlphaThreshold, mAppWindowAnimationHelper.getCurrentCornerRadius(),
-                            false);
-                }
-            }
-
-            @Override
-            public void onCancel() {
-                if (isFloatingIconView) {
-                    ((FloatingIconView) floatingView).fastFinish();
-                }
-            }
-        });
-        anim.addAnimatorListener(new AnimationSuccessListener() {
-            @Override
-            public void onAnimationStart(Animator animation) {
-                homeAnim.dispatchOnStart();
-            }
-
-            @Override
-            public void onAnimationSuccess(Animator animator) {
-                homeAnim.getAnimationPlayer().end();
-            }
-        });
+        SpringAnimationRunner runner = new SpringAnimationRunner(
+                homeAnimationFactory, cropRectF, homeToWindowPositionMap);
+        anim.addOnUpdateListener(runner);
+        anim.addAnimatorListener(runner);
         return anim;
     }
 
-    /**
-     * @param progress The progress of the animation to the home screen.
-     * @return The current alpha to set on the animating app window.
-     */
-    protected float getWindowAlpha(float progress) {
-        // Alpha interpolates between [1, 0] between progress values [start, end]
-        final float start = 0f;
-        final float end = 0.85f;
-
-        if (progress <= start) {
-            return 1f;
-        }
-        if (progress >= end) {
-            return 0f;
-        }
-        return Utilities.mapToRange(progress, start, end, 1, 0, ACCEL_1_5);
-    }
-
     public interface Factory {
 
         BaseSwipeUpHandler newHandler(GestureState gestureState, long touchTimeMs,
@@ -609,4 +530,135 @@ public abstract class BaseSwipeUpHandler<T extends BaseDraggingActivity, Q exten
             };
         }
     }
+
+    /**
+     * @param progress The progress of the animation to the home screen.
+     * @return The current alpha to set on the animating app window.
+     */
+    protected float getWindowAlpha(float progress) {
+        // Alpha interpolates between [1, 0] between progress values [start, end]
+        final float start = 0f;
+        final float end = 0.85f;
+
+        if (progress <= start) {
+            return 1f;
+        }
+        if (progress >= end) {
+            return 0f;
+        }
+        return Utilities.mapToRange(progress, start, end, 1, 0, ACCEL_1_5);
+    }
+
+    protected abstract class HomeAnimationFactory {
+
+        private FloatingIconView mIconView;
+
+        public HomeAnimationFactory(@Nullable FloatingIconView iconView) {
+            mIconView = iconView;
+        }
+
+        public @NonNull RectF getWindowTargetRect() {
+            PagedOrientationHandler orientationHandler = getOrientationHandler();
+            DeviceProfile dp = mDp;
+            final int halfIconSize = dp.iconSizePx / 2;
+            float primaryDimension = orientationHandler
+                    .getPrimaryValue(dp.availableWidthPx, dp.availableHeightPx);
+            float secondaryDimension = orientationHandler
+                    .getSecondaryValue(dp.availableWidthPx, dp.availableHeightPx);
+            final float targetX =  primaryDimension / 2f;
+            final float targetY = secondaryDimension - dp.hotseatBarSizePx;
+            // Fallback to animate to center of screen.
+            return new RectF(targetX - halfIconSize, targetY - halfIconSize,
+                    targetX + halfIconSize, targetY + halfIconSize);
+        }
+
+        public abstract @NonNull AnimatorPlaybackController createActivityAnimationToHome();
+
+        public void playAtomicAnimation(float velocity) {
+            // No-op
+        }
+    }
+
+    private class SpringAnimationRunner extends AnimationSuccessListener
+            implements RectFSpringAnim.OnUpdateListener, BuilderProxy {
+
+        final Rect mCropRect = new Rect();
+        final Matrix mMatrix = new Matrix();
+
+        final RectF mWindowCurrentRect = new RectF();
+        final Matrix mHomeToWindowPositionMap;
+
+        final FloatingIconView mFIV;
+        final AnimatorPlaybackController mHomeAnim;
+        final RectF mCropRectF;
+
+        final float mStartRadius;
+        final float mEndRadius;
+        final float mWindowAlphaThreshold;
+
+        SpringAnimationRunner(HomeAnimationFactory factory, RectF cropRectF,
+                Matrix homeToWindowPositionMap) {
+            mHomeAnim = factory.createActivityAnimationToHome();
+            mCropRectF = cropRectF;
+            mHomeToWindowPositionMap = homeToWindowPositionMap;
+
+            cropRectF.roundOut(mCropRect);
+            mFIV = factory.mIconView;
+
+            // End on a "round-enough" radius so that the shape reveal doesn't have to do too much
+            // rounding at the end of the animation.
+            mStartRadius = mTaskViewSimulator.getCurrentCornerRadius();
+            mEndRadius = cropRectF.width() / 2f;
+
+            // We want the window alpha to be 0 once this threshold is met, so that the
+            // FolderIconView can be seen morphing into the icon shape.
+            mWindowAlphaThreshold = mFIV != null ? 1f - SHAPE_PROGRESS_DURATION : 1f;
+        }
+
+        @Override
+        public void onUpdate(RectF currentRect, float progress) {
+            mHomeAnim.setPlayFraction(progress);
+            mHomeToWindowPositionMap.mapRect(mWindowCurrentRect, currentRect);
+
+            mMatrix.setRectToRect(mCropRectF, mWindowCurrentRect, ScaleToFit.FILL);
+            float cornerRadius = Utilities.mapRange(progress, mStartRadius, mEndRadius);
+            mTransformParams
+                    .setTargetAlpha(getWindowAlpha(progress))
+                    .setCornerRadius(cornerRadius);
+
+            mTransformParams.applySurfaceParams(mTransformParams.createSurfaceParams(this));
+            if (mFIV != null) {
+                mFIV.update(currentRect, 1f, progress,
+                        mWindowAlphaThreshold, mMatrix.mapRadius(cornerRadius), false);
+            }
+        }
+
+        @Override
+        public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app, int targetMode,
+                TransformParams params) {
+            if (app.mode == targetMode
+                    && app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
+                builder.withMatrix(mMatrix)
+                        .withWindowCrop(mCropRect)
+                        .withCornerRadius(params.getCornerRadius());
+            }
+        }
+
+        @Override
+        public void onCancel() {
+            if (mFIV != null) {
+                mFIV.fastFinish();
+            }
+        }
+
+        @Override
+        public void onAnimationStart(Animator animation) {
+            mHomeAnim.dispatchOnStart();
+        }
+
+        @Override
+        public void onAnimationSuccess(Animator animator) {
+            mHomeAnim.getAnimationPlayer().end();
+        }
+    }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
index 88dbbe13a5..4ce972e422 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
@@ -21,18 +21,14 @@ import static com.android.quickstep.fallback.FallbackRecentsView.ZOOM_PROGRESS;
 import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
 
-import android.animation.Animator;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.fallback.FallbackRecentsView;
@@ -89,39 +85,6 @@ public final class FallbackActivityInterface implements
         // set to zero prior to this class becoming active.
     }
 
-    @NonNull
-    @Override
-    public HomeAnimationFactory prepareHomeUI() {
-        RecentsActivity activity = getCreatedActivity();
-        RecentsView recentsView = activity.getOverviewPanel();
-
-        return new HomeAnimationFactory() {
-            @NonNull
-            @Override
-            public RectF getWindowTargetRect() {
-                float centerX = recentsView.getPivotX();
-                float centerY = recentsView.getPivotY();
-                return new RectF(centerX, centerY, centerX, centerY);
-            }
-
-            @NonNull
-            @Override
-            public AnimatorPlaybackController createActivityAnimationToHome() {
-                Animator anim = ObjectAnimator.ofFloat(recentsView, CONTENT_ALPHA, 0);
-                anim.addListener(new AnimationSuccessListener() {
-                    @Override
-                    public void onAnimationSuccess(Animator animator) {
-                        recentsView.startHome();
-                    }
-                });
-                AnimatorSet animatorSet = new AnimatorSet();
-                animatorSet.play(anim);
-                long accuracy = 2 * Math.max(recentsView.getWidth(), recentsView.getHeight());
-                return AnimatorPlaybackController.wrap(animatorSet, accuracy);
-            }
-        };
-    }
-
     @Override
     public AnimationFactory prepareRecentsUI(boolean activityVisible,
             boolean animateActivity, Consumer<AnimatorPlaybackController> callback) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
index d24b16a6ab..8ce6bbccfa 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -24,6 +24,7 @@ import static com.android.quickstep.GestureState.GestureEndTarget.RECENTS;
 import static com.android.quickstep.MultiStateCallback.DEBUG_STATES;
 import static com.android.quickstep.RecentsActivity.EXTRA_TASK_ID;
 import static com.android.quickstep.RecentsActivity.EXTRA_THUMBNAIL;
+import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 
 import android.animation.Animator;
@@ -32,7 +33,6 @@ import android.app.ActivityOptions;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.PointF;
-import android.graphics.RectF;
 import android.os.Bundle;
 import android.util.ArrayMap;
 import android.view.MotionEvent;
@@ -40,9 +40,7 @@ import android.view.MotionEvent;
 import com.android.launcher3.R;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
-import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.launcher3.util.ObjectWrapper;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.util.RectFSpringAnim;
@@ -108,7 +106,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
     public FallbackSwipeHandler(Context context, RecentsAnimationDeviceState deviceState,
             GestureState gestureState, InputConsumerController inputConsumer,
             boolean isLikelyToStartNewTask, boolean continuingLastGesture) {
-        super(context, deviceState, gestureState, inputConsumer);
+        super(context, deviceState, gestureState, inputConsumer, FALLBACK_RECENTS_SIZE_STRATEGY);
 
         mInQuickSwitchMode = isLikelyToStartNewTask || continuingLastGesture;
         mContinuingLastGesture = continuingLastGesture;
@@ -156,7 +154,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
 
     private void onLauncherAlphaChanged() {
         if (mRecentsAnimationTargets != null && mGestureState.getEndTarget() == null) {
-            applyTransformUnchecked();
+            applyWindowTransform();
         }
     }
 
@@ -261,9 +259,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             updateOverviewThresholdPassed(mCurrentShift.value >= MIN_PROGRESS_FOR_OVERVIEW);
         }
 
-        if (mRecentsAnimationTargets != null) {
-            applyTransformUnchecked();
-        }
+        applyWindowTransform();
     }
 
     @Override
@@ -468,11 +464,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
             RecentsAnimationTargets targets) {
         super.onRecentsAnimationStart(controller, targets);
         mRecentsAnimationController.enableInputConsumer();
-
-        if (mRunningOverHome) {
-            mAppWindowAnimationHelper.prepareAnimation(mDp);
-        }
-        applyTransformUnchecked();
+        applyWindowTransform();
 
         mStateCallback.setStateOnUiThread(STATE_APP_CONTROLLER_RECEIVED);
     }
@@ -495,18 +487,7 @@ public class FallbackSwipeHandler extends BaseSwipeUpHandler<RecentsActivity, Fa
      * @param startProgress The progress of {@link #mCurrentShift} to start the window from.
      */
     private RectFSpringAnim createWindowAnimationToHome(float startProgress, long duration) {
-        HomeAnimationFactory factory = new HomeAnimationFactory() {
-            @Override
-            public RectF getWindowTargetRect() {
-                PagedOrientationHandler orientationHandler = mRecentsView != null
-                        ? mRecentsView.getPagedOrientationHandler()
-                        : (mDp.isLandscape
-                                ? PagedOrientationHandler.LANDSCAPE
-                                : PagedOrientationHandler.PORTRAIT);
-                return HomeAnimationFactory
-                    .getDefaultWindowTargetRect(orientationHandler, mDp);
-            }
-
+        HomeAnimationFactory factory = new HomeAnimationFactory(null) {
             @Override
             public AnimatorPlaybackController createActivityAnimationToHome() {
                 AnimatorSet anim = new AnimatorSet();
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
index d4175e27eb..dc35bf6dc0 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
@@ -17,7 +17,6 @@ package com.android.quickstep;
 
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
-import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.INSTANT;
@@ -34,15 +33,11 @@ import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
-import android.os.UserHandle;
 import android.util.Log;
 import android.util.Pair;
 import android.view.MotionEvent;
-import android.view.View;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
@@ -58,16 +53,13 @@ import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statehandlers.DepthController.ClampedDepthProperty;
 import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
-import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.SysUINavigationMode.Mode;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
-import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.views.LauncherRecentsView;
 import com.android.quickstep.views.RecentsView;
-import com.android.quickstep.views.TaskView;
 import com.android.systemui.plugins.shared.LauncherOverlayManager;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
@@ -150,63 +142,6 @@ public final class LauncherActivityInterface implements BaseActivityInterface<La
         launcher.onAssistantVisibilityChanged(visibility);
     }
 
-    @NonNull
-    @Override
-    public HomeAnimationFactory prepareHomeUI() {
-        Launcher launcher = getCreatedActivity();
-        final DeviceProfile dp = launcher.getDeviceProfile();
-        final RecentsView recentsView = launcher.getOverviewPanel();
-        final TaskView runningTaskView = recentsView.getRunningTaskView();
-        final View workspaceView;
-        if (runningTaskView != null && runningTaskView.getTask().key.getComponent() != null) {
-            workspaceView = launcher.getWorkspace().getFirstMatchForAppClose(
-                    runningTaskView.getTask().key.getComponent().getPackageName(),
-                    UserHandle.of(runningTaskView.getTask().key.userId));
-        } else {
-            workspaceView = null;
-        }
-        final RectF iconLocation = new RectF();
-        boolean canUseWorkspaceView = workspaceView != null && workspaceView.isAttachedToWindow();
-        FloatingIconView floatingIconView = canUseWorkspaceView
-                ? FloatingIconView.getFloatingIconView(launcher, workspaceView,
-                        true /* hideOriginal */, iconLocation, false /* isOpening */)
-                : null;
-        setLauncherHideBackArrow(true);
-        return new HomeAnimationFactory() {
-            @Nullable
-            @Override
-            public View getFloatingView() {
-                return floatingIconView;
-            }
-
-            @NonNull
-            @Override
-            public RectF getWindowTargetRect() {
-                if (canUseWorkspaceView) {
-                    return iconLocation;
-                } else {
-                    return HomeAnimationFactory
-                        .getDefaultWindowTargetRect(recentsView.getPagedOrientationHandler(), dp);
-                }
-            }
-
-            @NonNull
-            @Override
-            public AnimatorPlaybackController createActivityAnimationToHome() {
-                // Return an empty APC here since we have an non-user controlled animation to home.
-                long accuracy = 2 * Math.max(dp.widthPx, dp.heightPx);
-                return launcher.getStateManager().createAnimationToNewWorkspace(NORMAL, accuracy,
-                        0 /* animComponents */);
-            }
-
-            @Override
-            public void playAtomicAnimation(float velocity) {
-                new StaggeredWorkspaceAnim(launcher, velocity, true /* animateOverviewScrim */)
-                        .start();
-            }
-        };
-    }
-
     @Override
     public AnimationFactory prepareRecentsUI(boolean activityVisible,
             boolean animateActivity, Consumer<AnimatorPlaybackController> callback) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
index e0393c7725..4386d0b97c 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
@@ -17,8 +17,7 @@ package com.android.quickstep;
 
 import static com.android.launcher3.BaseActivity.INVISIBLE_BY_STATE_HANDLER;
 import static com.android.launcher3.BaseActivity.STATE_HANDLER_INVISIBILITY_FLAGS;
-import static com.android.launcher3.LauncherState.BACKGROUND_APP;
-import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.anim.Interpolators.DEACCEL;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
@@ -41,17 +40,16 @@ import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHO
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
-import android.animation.ObjectAnimator;
 import android.animation.TimeInterpolator;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.PointF;
-import android.graphics.Rect;
 import android.graphics.RectF;
 import android.os.Build;
 import android.os.SystemClock;
+import android.os.UserHandle;
 import android.view.View;
 import android.view.View.OnApplyWindowInsetsListener;
 import android.view.ViewTreeObserver.OnDrawListener;
@@ -64,6 +62,7 @@ import androidx.annotation.UiThread;
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimationSuccessListener;
@@ -74,15 +73,15 @@ import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Direction;
 import com.android.launcher3.userevent.nano.LauncherLogProto.Action.Touch;
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 import com.android.launcher3.util.TraceHelper;
+import com.android.launcher3.views.FloatingIconView;
 import com.android.quickstep.BaseActivityInterface.AnimationFactory;
-import com.android.quickstep.BaseActivityInterface.HomeAnimationFactory;
 import com.android.quickstep.GestureState.GestureEndTarget;
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
-import com.android.quickstep.util.TaskViewSimulator;
+import com.android.quickstep.util.StaggeredWorkspaceAnim;
 import com.android.quickstep.util.TransformParams.TargetAlphaProvider;
 import com.android.quickstep.views.LiveTileOverlay;
 import com.android.quickstep.views.RecentsView;
@@ -96,8 +95,8 @@ import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
  * Handles the navigation gestures when Launcher is the default home activity.
  */
 @TargetApi(Build.VERSION_CODES.O)
-public class LauncherSwipeHandler<T extends BaseDraggingActivity>
-        extends BaseSwipeUpHandler<T, RecentsView> implements OnApplyWindowInsetsListener {
+public class LauncherSwipeHandler extends BaseSwipeUpHandler<Launcher, RecentsView>
+        implements OnApplyWindowInsetsListener {
     private static final String TAG = LauncherSwipeHandler.class.getSimpleName();
 
     private static final String[] STATE_NAMES = DEBUG_STATES ? new String[16] : null;
@@ -151,7 +150,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             STATE_LAUNCHER_PRESENT | STATE_LAUNCHER_DRAWN | STATE_LAUNCHER_STARTED;
 
     public static final long MAX_SWIPE_DURATION = 350;
-    public static final long MIN_SWIPE_DURATION = 80;
     public static final long MIN_OVERSHOOT_DURATION = 120;
 
     public static final float MIN_PROGRESS_FOR_OVERVIEW = 0.7f;
@@ -180,9 +178,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     private AnimatorPlaybackController mLauncherTransitionController;
     private boolean mHasLauncherTransitionControllerStarted;
 
-    private final TaskViewSimulator mTaskViewSimulator;
-    private AnimatorPlaybackController mWindowTransitionController;
-
     private AnimationFactory mAnimationFactory = (t) -> { };
 
     private boolean mWasLauncherAlreadyVisible;
@@ -203,11 +198,10 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             TaskAnimationManager taskAnimationManager, GestureState gestureState,
             long touchTimeMs, boolean continuingLastGesture,
             InputConsumerController inputConsumer) {
-        super(context, deviceState, gestureState, inputConsumer);
+        super(context, deviceState, gestureState, inputConsumer, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
         mTaskAnimationManager = taskAnimationManager;
         mTouchTimeMs = touchTimeMs;
         mContinuingLastGesture = continuingLastGesture;
-        mTaskViewSimulator = new TaskViewSimulator(context, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
 
         initAfterSubclassConstructor();
         initStateCallbacks();
@@ -279,7 +273,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     @Override
     protected boolean onActivityInit(Boolean alreadyOnHome) {
         super.onActivityInit(alreadyOnHome);
-        final T activity = mActivityInterface.getCreatedActivity();
+        final Launcher activity = mActivityInterface.getCreatedActivity();
         if (mActivity == activity) {
             return true;
         }
@@ -327,7 +321,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
     }
 
     private void onLauncherStart() {
-        final T activity = mActivityInterface.getCreatedActivity();
+        final Launcher activity = mActivityInterface.getCreatedActivity();
         if (mActivity != activity) {
             return;
         }
@@ -518,34 +512,6 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
         mAnimationFactory.createActivityInterface(mTransitionDragLength);
     }
 
-    @Override
-    protected void updateSource(Rect stackBounds, RemoteAnimationTargetCompat runningTarget) {
-        super.updateSource(stackBounds, runningTarget);
-        mTaskViewSimulator.setPreview(runningTarget, mRecentsAnimationTargets);
-    }
-
-    @Override
-    protected void initTransitionEndpoints(DeviceProfile dp) {
-        super.initTransitionEndpoints(dp);
-        mTaskViewSimulator.setDp(dp);
-        mTaskViewSimulator.setLayoutRotation(
-                mDeviceState.getCurrentActiveRotation(),
-                mDeviceState.getDisplayRotation());
-
-        AnimatorSet anim = new AnimatorSet();
-        anim.setDuration(mTransitionDragLength * 2);
-        anim.setInterpolator(t -> t * mDragLengthFactor);
-        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.recentsViewScale,
-                AnimatedFloat.VALUE,
-                mTaskViewSimulator.getFullScreenScale(), 1));
-        anim.play(ObjectAnimator.ofFloat(mTaskViewSimulator.fullScreenProgress,
-                AnimatedFloat.VALUE,
-                BACKGROUND_APP.getOverviewFullscreenProgress(),
-                OVERVIEW.getOverviewFullscreenProgress()));
-        mWindowTransitionController =
-                AnimatorPlaybackController.wrap(anim, mTransitionDragLength * 2);
-    }
-
     /**
      * We don't want to change mLauncherTransitionController if mGestureState.getEndTarget() == HOME
      * (it has its own animation) or if we're already animating the current controller.
@@ -576,18 +542,11 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
 
     @Override
     public void updateFinalShift() {
-        if (mRecentsAnimationTargets != null) {
-            // Base class expects applyTransformUnchecked to be called here.
-            // TODO: Remove this dependency for swipe-up animation.
-            // applyTransformUnchecked();
-            updateSysUiFlags(mCurrentShift.value);
-        }
-
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             if (mRecentsAnimationTargets != null) {
                 LiveTileOverlay.INSTANCE.update(
-                        mAppWindowAnimationHelper.getCurrentRectWithInsets(),
-                        mAppWindowAnimationHelper.getCurrentCornerRadius());
+                        mTaskViewSimulator.getCurrentCropRect(),
+                        mTaskViewSimulator.getCurrentCornerRadius());
             }
         }
 
@@ -599,14 +558,8 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             }
         }
 
-        if (mWindowTransitionController != null) {
-            float progress = mCurrentShift.value / mDragLengthFactor;
-            mWindowTransitionController.setPlayFraction(progress);
-            mTransformParams.setTargetSet(mRecentsAnimationTargets);
-
-            mTaskViewSimulator.setScroll(mRecentsView == null ? 0 : mRecentsView.getScrollOffset());
-            mTaskViewSimulator.apply(mTransformParams);
-        }
+        updateSysUiFlags(mCurrentShift.value);
+        applyWindowTransform();
         updateLauncherTransitionProgress();
     }
 
@@ -680,7 +633,7 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
      */
     @UiThread
     private void notifyGestureStartedAsync() {
-        final T curActivity = mActivity;
+        final Launcher curActivity = mActivity;
         if (curActivity != null) {
             // Once the gesture starts, we can no longer transition home through the button, so
             // reset the force override of the activity visibility
@@ -962,24 +915,61 @@ public class LauncherSwipeHandler<T extends BaseDraggingActivity>
             Interpolator interpolator, GestureEndTarget target, PointF velocityPxPerMs) {
         // Set the state, but don't notify until the animation completes
         mGestureState.setEndTarget(target, false /* isAtomic */);
-
         maybeUpdateRecentsAttachedState();
 
         if (mGestureState.getEndTarget() == HOME) {
             HomeAnimationFactory homeAnimFactory;
             if (mActivity != null) {
-                homeAnimFactory = mActivityInterface.prepareHomeUI();
-            } else {
-                homeAnimFactory = new HomeAnimationFactory() {
-                    @NonNull
+                final TaskView runningTaskView = mRecentsView.getRunningTaskView();
+                final View workspaceView;
+                if (runningTaskView != null
+                        && runningTaskView.getTask().key.getComponent() != null) {
+                    workspaceView = mActivity.getWorkspace().getFirstMatchForAppClose(
+                            runningTaskView.getTask().key.getComponent().getPackageName(),
+                            UserHandle.of(runningTaskView.getTask().key.userId));
+                } else {
+                    workspaceView = null;
+                }
+                final RectF iconLocation = new RectF();
+                boolean canUseWorkspaceView =
+                        workspaceView != null && workspaceView.isAttachedToWindow();
+                FloatingIconView floatingIconView = canUseWorkspaceView
+                        ? FloatingIconView.getFloatingIconView(mActivity, workspaceView,
+                        true /* hideOriginal */, iconLocation, false /* isOpening */)
+                        : null;
+
+                mActivity.getRootView().setForceHideBackArrow(true);
+
+                homeAnimFactory = new HomeAnimationFactory(floatingIconView) {
+
                     @Override
                     public RectF getWindowTargetRect() {
-                        RectF fallbackTarget = new RectF(mAppWindowAnimationHelper.getTargetRect());
-                        Utilities.scaleRectFAboutCenter(fallbackTarget, 0.25f);
-                        return fallbackTarget;
+                        if (canUseWorkspaceView) {
+                            return iconLocation;
+                        } else {
+                            return super.getWindowTargetRect();
+                        }
                     }
 
                     @NonNull
+                    @Override
+                    public AnimatorPlaybackController createActivityAnimationToHome() {
+                        // Return an empty APC here since we have an non-user controlled animation
+                        // to home.
+                        long accuracy = 2 * Math.max(mDp.widthPx, mDp.heightPx);
+                        return mActivity.getStateManager().createAnimationToNewWorkspace(
+                                NORMAL, accuracy, 0 /* animComponents */);
+                    }
+
+                    @Override
+                    public void playAtomicAnimation(float velocity) {
+                        new StaggeredWorkspaceAnim(mActivity, velocity,
+                                true /* animateOverviewScrim */).start();
+                    }
+                };
+
+            } else {
+                homeAnimFactory = new HomeAnimationFactory(null) {
                     @Override
                     public AnimatorPlaybackController createActivityAnimationToHome() {
                         return AnimatorPlaybackController.wrap(new AnimatorSet(), duration);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
index d3bd01289b..a7979cce96 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
@@ -222,18 +222,8 @@ public class AppWindowAnimationHelper implements TransformParams.BuilderProxy {
             mCurrentRect.set(params.getCurrentRect());
         } else {
             mTmpRectF.set(mTargetRect);
-            Utilities.scaleRectFAboutCenter(mTmpRectF, params.getOffsetScale());
             mCurrentRect.set(mRectFEvaluator.evaluate(
                     params.getProgress(), mSourceRect, mTmpRectF));
-            if (mOrientedState == null
-                    || !mOrientedState.isMultipleOrientationSupportedByDevice()) {
-                mCurrentRect.offset(params.getOffset(), 0);
-            } else {
-                int displayRotation = mOrientedState.getDisplayRotation();
-                int launcherRotation = mOrientedState.getLauncherRotation();
-                mOrientedState.getOrientationHandler().offsetTaskRect(
-                        mCurrentRect, params.getOffset(), displayRotation, launcherRotation);
-            }
         }
 
         updateClipRect(params);
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
index 832f0e2dce..efdd3a73c4 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -33,7 +33,6 @@ import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.quickstep.AnimatedFloat;
-import com.android.quickstep.RecentsAnimationTargets;
 import com.android.quickstep.views.RecentsView.ScrollState;
 import com.android.quickstep.views.TaskThumbnailView.PreviewPositionHelper;
 import com.android.quickstep.views.TaskView;
@@ -61,7 +60,6 @@ public class TaskViewSimulator implements TransformParams.BuilderProxy {
 
     private final Matrix mMatrix = new Matrix();
     private RemoteAnimationTargetCompat mRunningTarget;
-    private RecentsAnimationTargets mAllTargets;
 
     // Thumbnail view properties
     private final Rect mThumbnailPosition = new Rect();
@@ -135,10 +133,8 @@ public class TaskViewSimulator implements TransformParams.BuilderProxy {
     /**
      * Sets the targets which the simulator will control
      */
-    public void setPreview(
-            RemoteAnimationTargetCompat runningTarget, RecentsAnimationTargets allTargets) {
+    public void setPreview(RemoteAnimationTargetCompat runningTarget) {
         mRunningTarget = runningTarget;
-        mAllTargets = allTargets;
 
         mThumbnailData.insets.set(mRunningTarget.contentInsets);
         // TODO: What is this?
@@ -160,6 +156,43 @@ public class TaskViewSimulator implements TransformParams.BuilderProxy {
         }
     }
 
+    /**
+     * Returns the current clipped/visible window bounds in the window coordinate space
+     */
+    public RectF getCurrentCropRect() {
+        // Crop rect is the inverse of thumbnail matrix
+        RectF insets = mCurrentFullscreenParams.mCurrentDrawnInsets;
+        mTempRectF.set(-insets.left, -insets.top,
+                mTaskRect.width() + insets.right, mTaskRect.height() + insets.bottom);
+        mInversePositionMatrix.mapRect(mTempRectF);
+        return mTempRectF;
+    }
+
+    public RecentsOrientedState getOrientationState() {
+        return mOrientationState;
+    }
+
+    /**
+     * Returns the current transform applied to the window
+     */
+    public Matrix getCurrentMatrix() {
+        return mMatrix;
+    }
+
+    /**
+     * Applies the rotation on the matrix to so that it maps from launcher coordinate space to
+     * window coordinate space.
+     */
+    public void applyWindowToHomeRotation(Matrix matrix) {
+        mMatrix.postTranslate(mDp.windowX, mDp.windowY);
+        postDisplayRotation(deltaRotation(
+                mOrientationState.getLauncherRotation(), mOrientationState.getDisplayRotation()),
+                mDp.widthPx, mDp.heightPx, matrix);
+        if (mRunningTarget != null) {
+            matrix.postTranslate(-mRunningTarget.position.x, -mRunningTarget.position.y);
+        }
+    }
+
     /**
      * Applies the target to the previously set parameters
      */
@@ -217,11 +250,7 @@ public class TaskViewSimulator implements TransformParams.BuilderProxy {
 
         // Apply recensView matrix
         mMatrix.postScale(recentsViewScale.value, recentsViewScale.value, mPivot.x, mPivot.y);
-        postDisplayRotation(deltaRotation(
-                mOrientationState.getLauncherRotation(), mOrientationState.getDisplayRotation()),
-                mDp.widthPx, mDp.heightPx, mMatrix);
-        mMatrix.postTranslate(mDp.windowX - mRunningTarget.position.x,
-                mDp.windowY - mRunningTarget.position.y);
+        applyWindowToHomeRotation(mMatrix);
 
         // Crop rect is the inverse of thumbnail matrix
         mTempRectF.set(-insets.left, -insets.top,
@@ -235,7 +264,7 @@ public class TaskViewSimulator implements TransformParams.BuilderProxy {
     @Override
     public void onBuildParams(Builder builder, RemoteAnimationTargetCompat app,
             int targetMode, TransformParams params) {
-        if (app.mode == mAllTargets.targetMode
+        if (app.mode == targetMode
                 && app.activityType != RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
             builder.withMatrix(mMatrix)
                     .withWindowCrop(mTmpCropRect)
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TransformParams.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TransformParams.java
index 02e2142d7d..83b64db024 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TransformParams.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/TransformParams.java
@@ -30,8 +30,6 @@ import com.android.systemui.shared.system.TransactionCompat;
 public class TransformParams {
 
     private float mProgress;
-    private float mOffset;
-    private float mOffsetScale;
     private @Nullable RectF mCurrentRect;
     private float mTargetAlpha;
     private float mCornerRadius;
@@ -43,8 +41,6 @@ public class TransformParams {
 
     public TransformParams() {
         mProgress = 0;
-        mOffset = 0;
-        mOffsetScale = 1;
         mCurrentRect = null;
         mTargetAlpha = 1;
         mCornerRadius = -1;
@@ -89,26 +85,6 @@ public class TransformParams {
         return this;
     }
 
-    /**
-     * If {@link #mCurrentRect} is null (i.e. {@link #setCurrentRect(RectF)} hasn't overridden
-     * the default), then offset the current rect by this amount after computing the rect based
-     * on {@link #mProgress}.
-     */
-    public TransformParams setOffset(float offset) {
-        mOffset = offset;
-        return this;
-    }
-
-    /**
-     * If {@link #mCurrentRect} is null (i.e. {@link #setCurrentRect(RectF)} hasn't overridden
-     * the default), then scale the current rect by this amount after computing the rect based
-     * on {@link #mProgress}.
-     */
-    public TransformParams setOffsetScale(float offsetScale) {
-        mOffsetScale = offsetScale;
-        return this;
-    }
-
     /**
      * Specifies the set of RemoteAnimationTargetCompats that are included in the transformation
      * that these TransformParams help compute. These TransformParams generally only apply to
@@ -183,14 +159,6 @@ public class TransformParams {
         return mProgress;
     }
 
-    public float getOffset() {
-        return mOffset;
-    }
-
-    public float getOffsetScale() {
-        return mOffsetScale;
-    }
-
     @Nullable
     public RectF getCurrentRect() {
         return mCurrentRect;
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index d51d6df489..bdddb3f8aa 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -18,14 +18,12 @@ package com.android.quickstep;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.Rect;
-import android.graphics.RectF;
 import android.os.Build;
 import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.animation.Interpolator;
 
-import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.UiThread;
 
@@ -33,7 +31,6 @@ import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.statehandlers.DepthController;
-import com.android.launcher3.touch.PagedOrientationHandler;
 import com.android.quickstep.util.ActivityInitListener;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -66,8 +63,6 @@ public interface BaseActivityInterface<T extends BaseDraggingActivity> {
     default void onSwipeUpToHomeComplete() { }
     void onAssistantVisibilityChanged(float visibility);
 
-    @NonNull HomeAnimationFactory prepareHomeUI();
-
     AnimationFactory prepareRecentsUI(boolean activityVisible, boolean animateActivity,
             Consumer<AnimatorPlaybackController> callback);
 
@@ -152,35 +147,4 @@ public interface BaseActivityInterface<T extends BaseDraggingActivity> {
          */
         default void setRecentsAttachedToAppWindow(boolean attached, boolean animate) { }
     }
-
-    interface HomeAnimationFactory {
-
-        /** Return the floating view that will animate in sync with the closing window. */
-        default @Nullable View getFloatingView() {
-            return null;
-        }
-
-        @NonNull RectF getWindowTargetRect();
-
-        @NonNull AnimatorPlaybackController createActivityAnimationToHome();
-
-        default void playAtomicAnimation(float velocity) {
-            // No-op
-        }
-
-        static RectF getDefaultWindowTargetRect(PagedOrientationHandler orientationHandler,
-            DeviceProfile dp) {
-            final int halfIconSize = dp.iconSizePx / 2;
-            float primaryDimension = orientationHandler
-                .getPrimaryValue(dp.availableWidthPx, dp.availableHeightPx);
-            float secondaryDimension = orientationHandler
-                .getSecondaryValue(dp.availableWidthPx, dp.availableHeightPx);
-            final float targetX =  primaryDimension / 2f;
-            final float targetY = secondaryDimension - dp.hotseatBarSizePx;
-            // Fallback to animate to center of screen.
-            return new RectF(targetX - halfIconSize, targetY - halfIconSize,
-                    targetX + halfIconSize, targetY + halfIconSize);
-        }
-
-    }
 }
diff --git a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
index f6c4e666c6..0418379898 100644
--- a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
+++ b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
@@ -36,7 +36,6 @@ import android.database.ContentObserver;
 import android.graphics.Matrix;
 import android.graphics.PointF;
 import android.graphics.Rect;
-import android.graphics.RectF;
 import android.os.Handler;
 import android.provider.Settings;
 import android.util.Log;
@@ -121,7 +120,6 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
     private final WindowSizeStrategy mSizeStrategy;
 
     private final Matrix mTmpMatrix = new Matrix();
-    private final Matrix mTmpInverseMatrix = new Matrix();
 
     private int mFlags;
     private int mPreviousRotation = ROTATION_0;
@@ -403,23 +401,6 @@ public final class RecentsOrientedState implements SharedPreferences.OnSharedPre
         */
     }
 
-    public void mapRectFromNormalOrientation(RectF src, int screenWidth, int screenHeight) {
-        mapRectFromRotation(mDisplayRotation, src, screenWidth, screenHeight);
-    }
-
-    public void mapRectFromRotation(int rotation, RectF src, int screenWidth, int screenHeight) {
-        mTmpMatrix.reset();
-        postDisplayRotation(rotation, screenWidth, screenHeight, mTmpMatrix);
-        mTmpMatrix.mapRect(src);
-    }
-
-    public void mapInverseRectFromNormalOrientation(RectF src, int screenWidth, int screenHeight) {
-        mTmpMatrix.reset();
-        postDisplayRotation(mDisplayRotation, screenWidth, screenHeight, mTmpMatrix);
-        mTmpMatrix.invert(mTmpInverseMatrix);
-        mTmpInverseMatrix.mapRect(src);
-    }
-
     @SurfaceRotation
     public static int getRotationForUserDegreesRotated(float degrees, int currentRotation) {
         if (degrees == ORIENTATION_UNKNOWN) {