Merge "Various multi-window fixes" into ub-launcher3-rvc-dev
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
index e57e841..4718c81 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/states/BackgroundAppState.java
@@ -23,7 +23,6 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.RecentsView;
-import com.android.quickstep.views.TaskView;
 
 /**
  * State indicating that the Launcher is behind an app
@@ -66,23 +65,7 @@
     }
 
     private float getOverviewScale(Launcher launcher) {
-        // Initialize the recents view scale to what it would be when starting swipe up
-        RecentsView recentsView = launcher.getOverviewPanel();
-        int taskCount = recentsView.getTaskViewCount();
-        if (taskCount == 0) return 1;
-
-        TaskView dummyTask;
-        if (recentsView.getCurrentPage() >= recentsView.getTaskViewStartIndex()) {
-            if (recentsView.getCurrentPage() <= taskCount - 1) {
-                dummyTask = recentsView.getCurrentPageTaskView();
-            } else {
-                dummyTask = recentsView.getTaskViewAt(taskCount - 1);
-            }
-        } else {
-            dummyTask = recentsView.getTaskViewAt(0);
-        }
-        return recentsView.getTempAppWindowAnimationHelper()
-                .updateForFullscreenOverview(dummyTask).getSrcToTargetScale();
+        return ((RecentsView) launcher.getOverviewPanel()).getMaxScaleForFullScreen();
     }
 
     @Override
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 d22e5af..9540ccf 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/BaseSwipeUpHandler.java
@@ -26,7 +26,6 @@
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
-import android.graphics.Point;
 import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.RectF;
@@ -265,8 +264,7 @@
         if (targets.minimizedHomeBounds != null && runningTaskTarget != null) {
             overviewStackBounds = mActivityInterface
                     .getOverviewWindowBounds(targets.minimizedHomeBounds, runningTaskTarget);
-            dp = dp.getMultiWindowProfile(mContext, new Point(
-                    overviewStackBounds.width(), overviewStackBounds.height()));
+            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);
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 2214dd0..5ae45b9 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/FallbackActivityInterface.java
@@ -18,6 +18,7 @@
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.quickstep.SysUINavigationMode.Mode.NO_BUTTON;
 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;
@@ -36,7 +37,6 @@
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.util.ActivityInitListener;
-import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.RecentsView;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 
@@ -60,7 +60,7 @@
 
     @Override
     public int getSwipeUpDestinationAndLength(DeviceProfile dp, Context context, Rect outRect) {
-        LayoutUtils.calculateFallbackTaskSize(context, dp, outRect);
+        FALLBACK_RECENTS_SIZE_STRATEGY.calculateTaskSize(context, dp, outRect);
         if (dp.isVerticalBarLayout()
                 && SysUINavigationMode.INSTANCE.get(context).getMode() != NO_BUTTON) {
             Rect targetInsets = dp.getInsets();
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 b4764dc..07fbcd2 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherActivityInterface.java
@@ -26,6 +26,7 @@
 import static com.android.launcher3.anim.Interpolators.INSTANT;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.quickstep.LauncherSwipeHandler.RECENTS_ATTACH_DURATION;
+import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_OFFSET;
 
 import android.animation.Animator;
@@ -82,7 +83,7 @@
 
     @Override
     public int getSwipeUpDestinationAndLength(DeviceProfile dp, Context context, Rect outRect) {
-        LayoutUtils.calculateLauncherTaskSize(context, dp, outRect);
+        LAUNCHER_ACTIVITY_SIZE_STRATEGY.calculateTaskSize(context, dp, outRect);
         if (dp.isVerticalBarLayout() && SysUINavigationMode.getMode(context) != Mode.NO_BUTTON) {
             Rect targetInsets = dp.getInsets();
             int hotseatInset = dp.isSeascape() ? targetInsets.left : targetInsets.right;
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 52b40a9..aef055a 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/LauncherSwipeHandler.java
@@ -37,6 +37,7 @@
 import static com.android.quickstep.SysUINavigationMode.Mode.TWO_BUTTONS;
 import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.HIDE;
 import static com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState.PEEK;
+import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SIZE_STRATEGY;
 import static com.android.quickstep.views.RecentsView.UPDATE_SYSUI_FLAGS_THRESHOLD;
 
 import android.animation.Animator;
@@ -80,7 +81,6 @@
 import com.android.quickstep.inputconsumers.OverviewInputConsumer;
 import com.android.quickstep.util.ActiveGestureLog;
 import com.android.quickstep.util.AppWindowAnimationHelper.TargetAlphaProvider;
-import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.ShelfPeekAnim;
 import com.android.quickstep.util.ShelfPeekAnim.ShelfAnimState;
@@ -208,8 +208,7 @@
         mTaskAnimationManager = taskAnimationManager;
         mTouchTimeMs = touchTimeMs;
         mContinuingLastGesture = continuingLastGesture;
-        mTaskViewSimulator = new TaskViewSimulator(
-                context, LayoutUtils::calculateLauncherTaskSize, true);
+        mTaskViewSimulator = new TaskViewSimulator(context, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
 
         initAfterSubclassConstructor();
         initStateCallbacks();
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
index 52a2558..ff47f2c 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/RecentsActivity.java
@@ -121,7 +121,7 @@
     protected DeviceProfile createDeviceProfile() {
         DeviceProfile dp = InvariantDeviceProfile.INSTANCE.get(this).getDeviceProfile(this);
         return (mRecentsRootView != null) && isInMultiWindowMode()
-                ? dp.getMultiWindowProfile(this, mRecentsRootView.getLastKnownSize())
+                ? dp.getMultiWindowProfile(this, getMultiWindowDisplaySize())
                 : super.createDeviceProfile();
     }
 
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
index 3cf9b2c..559004c 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/fallback/FallbackRecentsView.java
@@ -16,22 +16,19 @@
 package com.android.quickstep.fallback;
 
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.quickstep.util.WindowSizeStrategy.FALLBACK_RECENTS_SIZE_STRATEGY;
 
 import android.app.ActivityManager.RunningTaskInfo;
 import android.content.Context;
 import android.graphics.Canvas;
-import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
 import android.view.View;
 
-import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Utilities;
 import com.android.quickstep.RecentsActivity;
-import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
-import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
 
@@ -65,7 +62,7 @@
     }
 
     public FallbackRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr, false);
+        super(context, attrs, defStyleAttr, FALLBACK_RECENTS_SIZE_STRATEGY);
     }
 
     @Override
@@ -105,11 +102,6 @@
     }
 
     @Override
-    protected void getTaskSize(DeviceProfile dp, Rect outRect) {
-        LayoutUtils.calculateFallbackTaskSize(getContext(), dp, outRect);
-    }
-
-    @Override
     public boolean shouldUseMultiWindowTaskSizeStrategy() {
         // Just use the activity task size for multi-window as well.
         return false;
@@ -140,16 +132,7 @@
     @Override
     protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
         super.onLayout(changed, left, top, right, bottom);
-
-        if (getTaskViewCount() == 0) {
-            mZoomScale = 1f;
-        } else {
-            TaskView dummyTask = getTaskViewAt(0);
-            mZoomScale = getTempAppWindowAnimationHelper()
-                    .updateForFullscreenOverview(dummyTask)
-                    .getSrcToTargetScale();
-        }
-
+        mZoomScale = getMaxScaleForFullScreen();
         setZoomProgress(mZoomInProgress);
     }
 
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 9781300..17284b0 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
@@ -61,7 +61,7 @@
 
     private final RecentsOrientedState mOrientationState;
     private final Context mContext;
-    private final TaskSizeProvider mSizeProvider;
+    private final WindowSizeStrategy mSizeStrategy;
 
     private final Rect mTaskRect = new Rect();
     private final PointF mPivot = new PointF();
@@ -95,14 +95,12 @@
     private boolean mLayoutValid = false;
     private boolean mScrollValid = false;
 
-    public TaskViewSimulator(Context context, TaskSizeProvider sizeProvider,
-            boolean rotationSupportedByActivity) {
+    public TaskViewSimulator(Context context, WindowSizeStrategy sizeStrategy) {
         mContext = context;
-        mSizeProvider = sizeProvider;
+        mSizeStrategy = sizeStrategy;
         mPositionHelper = new PreviewPositionHelper(context);
 
-        mOrientationState = new RecentsOrientedState(context, rotationSupportedByActivity,
-                i -> { });
+        mOrientationState = new RecentsOrientedState(context, sizeStrategy, i -> { });
         // We do not need to attach listeners as the simulator is created just for the gesture
         // duration, and any settings are unlikely to change during this
         mOrientationState.initWithoutListeners();
@@ -116,6 +114,7 @@
      */
     public void setDp(DeviceProfile dp, boolean isOpening) {
         mDp = dp;
+        mOrientationState.setMultiWindowMode(mDp.isMultiWindowMode);
         mBoostModeTargetLayers = isOpening ? MODE_OPENING : MODE_CLOSING;
         mLayoutValid = false;
     }
@@ -143,7 +142,7 @@
         if (mDp == null) {
             return 1;
         }
-        mSizeProvider.calculateTaskSize(mContext, mDp, mTaskRect);
+        mSizeStrategy.calculateTaskSize(mContext, mDp, mTaskRect);
         return mOrientationState.getFullScreenScaleAndPivot(mTaskRect, mDp, mPivot);
     }
 
@@ -161,8 +160,7 @@
 
         mThumbnailPosition.set(runningTarget.screenSpaceBounds);
         // TODO: Should sourceContainerBounds already have this offset?
-        mThumbnailPosition.offsetTo(mRunningTarget.position.x, mRunningTarget.position.y);
-
+        mThumbnailPosition.offset(-mRunningTarget.position.x, -mRunningTarget.position.y);
         mLayoutValid = false;
     }
 
@@ -198,7 +196,7 @@
                     ? mOrientationState.getDisplayRotation() : mPositionHelper.getCurrentRotation();
 
             mPositionHelper.updateThumbnailMatrix(mThumbnailPosition, mThumbnailData,
-                    mDp.isMultiWindowMode, mTaskRect.width(), mTaskRect.height());
+                    mTaskRect.width(), mTaskRect.height(), mDp);
 
             mPositionHelper.getMatrix().invert(mInversePositionMatrix);
 
@@ -209,6 +207,7 @@
             mScrollValid = false;
         }
 
+
         if (!mScrollValid) {
             mScrollValid = true;
             int start = mOrientationState.getOrientationHandler()
@@ -243,6 +242,8 @@
         postDisplayRotation(deltaRotation(
                 mOrientationState.getLauncherRotation(), mOrientationState.getDisplayRotation()),
                 mDp.widthPx, mDp.heightPx, mMatrix);
+        mMatrix.postTranslate(mDp.windowX - mRunningTarget.position.x,
+                mDp.windowY - mRunningTarget.position.y);
 
         // Crop rect is the inverse of thumbnail matrix
         mTempRectF.set(-insets.left, -insets.top,
@@ -298,16 +299,4 @@
         // Ideally we should use square-root. This is an optimization as one of the dimension is 0.
         return Math.max(Math.abs(mTempPoint[0]), Math.abs(mTempPoint[1]));
     }
-
-    /**
-     * Interface for calculating taskSize
-     */
-    public interface TaskSizeProvider {
-
-        /**
-         * Sets the outRect to the expected taskSize
-         */
-        void calculateTaskSize(Context context, DeviceProfile dp, Rect outRect);
-    }
-
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
index 9005651..aafad0c 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/LauncherRecentsView.java
@@ -25,6 +25,7 @@
 import static com.android.launcher3.QuickstepAppTransitionManagerImpl.ALL_APPS_PROGRESS_OFF_SCREEN;
 import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
+import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SIZE_STRATEGY;
 
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
@@ -39,7 +40,6 @@
 import android.widget.FrameLayout;
 
 import com.android.launcher3.BaseQuickstepLauncher;
-import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.Hotseat;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.LauncherStateManager.StateListener;
@@ -53,7 +53,6 @@
 import com.android.quickstep.SysUINavigationMode;
 import com.android.quickstep.util.AppWindowAnimationHelper;
 import com.android.quickstep.util.AppWindowAnimationHelper.TransformParams;
-import com.android.quickstep.util.LayoutUtils;
 import com.android.systemui.plugins.PluginListener;
 import com.android.systemui.plugins.RecentsExtraCard;
 
@@ -96,7 +95,7 @@
     }
 
     public LauncherRecentsView(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr, true);
+        super(context, attrs, defStyleAttr, LAUNCHER_ACTIVITY_SIZE_STRATEGY);
         mActivity.getStateManager().addStateListener(this);
     }
 
@@ -179,11 +178,6 @@
     }
 
     @Override
-    protected void getTaskSize(DeviceProfile dp, Rect outRect) {
-        LayoutUtils.calculateLauncherTaskSize(getContext(), dp, outRect);
-    }
-
-    @Override
     protected void onTaskLaunchAnimationUpdate(float progress, TaskView tv) {
         if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
             if (tv.isRunningTask()) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index cd3abed..411f057 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -122,6 +122,7 @@
 import com.android.quickstep.ViewUtils;
 import com.android.quickstep.util.AppWindowAnimationHelper;
 import com.android.quickstep.util.RecentsOrientedState;
+import com.android.quickstep.util.WindowSizeStrategy;
 import com.android.systemui.plugins.ResourceProvider;
 import com.android.systemui.shared.recents.IPinnedStackAnimationListener;
 import com.android.systemui.shared.recents.model.Task;
@@ -202,6 +203,7 @@
             };
 
     protected final RecentsOrientedState mOrientationState;
+    protected final WindowSizeStrategy mSizeStrategy;
     protected RecentsAnimationController mRecentsAnimationController;
     protected RecentsAnimationTargets mRecentsAnimationTargets;
     protected AppWindowAnimationHelper mAppWindowAnimationHelper;
@@ -225,7 +227,6 @@
     private final ClearAllButton mClearAllButton;
     private final Rect mClearAllButtonDeadZoneRect = new Rect();
     private final Rect mTaskViewDeadZoneRect = new Rect();
-    protected final AppWindowAnimationHelper mTempAppWindowAnimationHelper;
 
     private final ScrollState mScrollState = new ScrollState();
     // Keeps track of the previously known visible tasks for purposes of loading/unloading task data
@@ -373,20 +374,19 @@
     };
 
     public RecentsView(Context context, AttributeSet attrs, int defStyleAttr,
-            boolean rotationSupportedByActivity) {
+            WindowSizeStrategy sizeStrategy) {
         super(context, attrs, defStyleAttr);
         setPageSpacing(getResources().getDimensionPixelSize(R.dimen.recents_page_spacing));
         setEnableFreeScroll(true);
+        mSizeStrategy = sizeStrategy;
         mOrientationState = new RecentsOrientedState(
-                context, rotationSupportedByActivity, this::animateRecentsRotationInPlace);
+                context, mSizeStrategy, this::animateRecentsRotationInPlace);
 
         mFastFlingVelocity = getResources()
                 .getDimensionPixelSize(R.dimen.recents_fast_fling_velocity);
         mActivity = BaseActivity.fromContext(context);
         mModel = RecentsModel.INSTANCE.get(context);
         mIdp = InvariantDeviceProfile.INSTANCE.get(context);
-        mTempAppWindowAnimationHelper =
-            new AppWindowAnimationHelper(getPagedViewOrientedState(), context);
 
         mClearAllButton = (ClearAllButton) LayoutInflater.from(context)
                 .inflate(R.layout.overview_clear_all_button, this, false);
@@ -712,7 +712,7 @@
             final int pageIndex = requiredTaskCount - i - 1 + mTaskViewStartIndex;
             final Task task = tasks.get(i);
             final TaskView taskView = (TaskView) getChildAt(pageIndex);
-            taskView.bind(task, mOrientationState, mActivity.getDeviceProfile().isMultiWindowMode);
+            taskView.bind(task, mOrientationState);
         }
 
         if (mNextPage == INVALID_PAGE) {
@@ -802,7 +802,8 @@
     public void setInsets(Rect insets) {
         mInsets.set(insets);
         DeviceProfile dp = mActivity.getDeviceProfile();
-        getTaskSize(dp, mTempRect);
+        mOrientationState.setMultiWindowMode(dp.isMultiWindowMode);
+        getTaskSize(mTempRect);
         mTaskWidth = mTempRect.width();
         mTaskHeight = mTempRect.height();
 
@@ -812,10 +813,8 @@
                 dp.heightPx - mInsets.bottom - mTempRect.bottom);
     }
 
-    protected abstract void getTaskSize(DeviceProfile dp, Rect outRect);
-
     public void getTaskSize(Rect outRect) {
-        getTaskSize(mActivity.getDeviceProfile(), outRect);
+        mSizeStrategy.calculateTaskSize(mActivity, mActivity.getDeviceProfile(), outRect);
     }
 
     @Override
@@ -1068,8 +1067,7 @@
                     new ComponentName(getContext(), getClass()), 0, 0), null, null, "", "", 0, 0,
                     false, true, false, false, new ActivityManager.TaskDescription(), 0,
                     new ComponentName("", ""), false);
-            taskView.bind(mTmpRunningTask, mOrientationState,
-                    mActivity.getDeviceProfile().isMultiWindowMode);
+            taskView.bind(mTmpRunningTask, mOrientationState);
         }
 
         boolean runningTaskTileHidden = mRunningTaskTileHidden;
@@ -1764,7 +1762,7 @@
         int centerTaskIndex = getCurrentPage();
         boolean launchingCenterTask = taskIndex == centerTaskIndex;
 
-        float toScale = appWindowAnimationHelper.getSrcToTargetScale();
+        float toScale = getMaxScaleForFullScreen();
         if (launchingCenterTask) {
             RecentsView recentsView = tv.getRecentsView();
             anim.play(ObjectAnimator.ofFloat(recentsView, SCALE_PROPERTY, toScale));
@@ -1786,6 +1784,15 @@
         return anim;
     }
 
+    /**
+     * Returns the scale up required on the view, so that it coves the screen completely
+     */
+    public float getMaxScaleForFullScreen() {
+        getTaskSize(mTempRect);
+        return getPagedViewOrientedState().getFullScreenScaleAndPivot(
+                mTempRect, mActivity.getDeviceProfile(), mTempPointF);
+    }
+
     public PendingAnimation createTaskLaunchAnimation(
             TaskView tv, long duration, Interpolator interpolator) {
         if (FeatureFlags.IS_STUDIO_BUILD && mPendingAnimation != null) {
@@ -2079,10 +2086,6 @@
         return mAppWindowAnimationHelper;
     }
 
-    public AppWindowAnimationHelper getTempAppWindowAnimationHelper() {
-        return mTempAppWindowAnimationHelper;
-    }
-
     public AppWindowAnimationHelper.TransformParams getLiveTileParams(
             boolean mightNeedToRefill) {
         return null;
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
index e525842..aa08e86 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -36,12 +36,12 @@
 import android.graphics.Shader;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
-import android.util.Log;
 import android.util.Property;
 import android.view.Surface;
 import android.view.View;
 
 import com.android.launcher3.BaseActivity;
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;
@@ -104,7 +104,6 @@
 
     private boolean mOverlayEnabled;
     private OverviewScreenshotActions mOverviewScreenshotActionsPlugin;
-    private boolean mIsMultiWindowMode;
 
     public TaskThumbnailView(Context context) {
         this(context, null);
@@ -126,8 +125,11 @@
         mPreviewPositionHelper = new PreviewPositionHelper(context);
     }
 
-    public void bind(Task task, boolean isMultiWindowMode) {
-        mIsMultiWindowMode = isMultiWindowMode;
+    /**
+     * Updates the thumbnail to draw the provided task
+     * @param task
+     */
+    public void bind(Task task) {
         mOverlay.reset();
         mTask = task;
         int color = task == null ? Color.BLACK : task.colorBackground | 0xFF000000;
@@ -353,7 +355,7 @@
             mPreviewRect.set(0, 0, mThumbnailData.thumbnail.getWidth(),
                     mThumbnailData.thumbnail.getHeight());
             mPreviewPositionHelper.updateThumbnailMatrix(mPreviewRect, mThumbnailData,
-                    mIsMultiWindowMode, getMeasuredWidth(), getMeasuredHeight());
+                    getMeasuredWidth(), getMeasuredHeight(), mActivity.getDeviceProfile());
 
             mBitmapShader.setLocalMatrix(mPreviewPositionHelper.mMatrix);
             mPaint.setShader(mBitmapShader);
@@ -439,13 +441,14 @@
          * Updates the matrix based on the provided parameters
          */
         public void updateThumbnailMatrix(Rect thumbnailPosition, ThumbnailData thumbnailData,
-                boolean isInMultiWindowMode, int canvasWidth, int canvasHeight) {
+                int canvasWidth, int canvasHeight, DeviceProfile dp) {
             boolean isRotated = false;
             boolean isOrientationDifferent;
             mClipBottom = -1;
 
             float scale = thumbnailData.scale;
             Rect thumbnailInsets = thumbnailData.insets;
+
             final float thumbnailWidth = thumbnailPosition.width()
                     - (thumbnailInsets.left + thumbnailInsets.right) * scale;
             final float thumbnailHeight = thumbnailPosition.height()
@@ -456,8 +459,9 @@
             int currentRotation = getCurrentRotation();
             int deltaRotate = getRotationDelta(currentRotation, thumbnailRotation);
 
+            Rect deviceInsets = dp.getInsets();
             // Landscape vs portrait change
-            boolean windowingModeSupportsRotation = !isInMultiWindowMode
+            boolean windowingModeSupportsRotation = !dp.isMultiWindowMode
                     && thumbnailData.windowingMode == WINDOWING_MODE_FULLSCREEN;
             isOrientationDifferent = isOrientationChange(deltaRotate)
                     && windowingModeSupportsRotation;
@@ -476,9 +480,10 @@
 
             if (!isRotated) {
                 // No Rotation
-                mClippedInsets.offsetTo(thumbnailInsets.left * scale,
-                        thumbnailInsets.top * scale);
-                mMatrix.setTranslate(-mClippedInsets.left, -mClippedInsets.top);
+                mClippedInsets.offsetTo(deviceInsets.left * scale, deviceInsets.top * scale);
+                mMatrix.setTranslate(
+                        -thumbnailInsets.left * scale,
+                        -thumbnailInsets.top * scale);
             } else {
                 setThumbnailRotation(deltaRotate, thumbnailInsets, scale, thumbnailPosition);
             }
@@ -495,8 +500,16 @@
             }
             mClippedInsets.left *= thumbnailScale;
             mClippedInsets.top *= thumbnailScale;
-            mClippedInsets.right = widthWithInsets - mClippedInsets.left - canvasWidth;
-            mClippedInsets.bottom = heightWithInsets - mClippedInsets.top - canvasHeight;
+
+            if (dp.isMultiWindowMode) {
+                mClippedInsets.right = deviceInsets.right * scale * thumbnailScale;
+                mClippedInsets.bottom = deviceInsets.bottom * scale * thumbnailScale;
+            } else {
+                mClippedInsets.right = Math.max(0,
+                        widthWithInsets - mClippedInsets.left - canvasWidth);
+                mClippedInsets.bottom = Math.max(0,
+                        heightWithInsets - mClippedInsets.top - canvasHeight);
+            }
 
             mMatrix.postScale(thumbnailScale, thumbnailScale);
 
@@ -557,9 +570,8 @@
         /**
          * Insets to used for clipping the thumbnail (in case it is drawing outside its own space)
          */
-        public RectF getInsetsToDrawInFullscreen(boolean isMultiWindowMode) {
-            // Don't show insets in multi window mode.
-            return isMultiWindowMode ? EMPTY_RECT_F : mClippedInsets;
+        public RectF getInsetsToDrawInFullscreen() {
+            return mClippedInsets;
         }
     }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
index aea5b8e..f8f927b 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
@@ -274,10 +274,10 @@
      * TODO(b/142282126) Re-evaluate if we need to pass in isMultiWindowMode after
      *   that issue is fixed
      */
-    public void bind(Task task, RecentsOrientedState orientedState, boolean isMultiWindowMode) {
+    public void bind(Task task, RecentsOrientedState orientedState) {
         cancelPendingLoadTasks();
         mTask = task;
-        mSnapshotView.bind(task, isMultiWindowMode);
+        mSnapshotView.bind(task);
         setOrientationState(orientedState);
     }
 
@@ -1017,14 +1017,13 @@
          */
         public void setProgress(float fullscreenProgress, float parentScale, int previewWidth,
                 DeviceProfile dp, PreviewPositionHelper pph) {
-            boolean isMultiWindowMode = dp.isMultiWindowMode;
-            RectF insets = pph.getInsetsToDrawInFullscreen(isMultiWindowMode);
+            RectF insets = pph.getInsetsToDrawInFullscreen();
 
             float currentInsetsLeft = insets.left * fullscreenProgress;
             float currentInsetsRight = insets.right * fullscreenProgress;
             mCurrentDrawnInsets.set(currentInsetsLeft, insets.top * fullscreenProgress,
                     currentInsetsRight, insets.bottom * fullscreenProgress);
-            float fullscreenCornerRadius = isMultiWindowMode ? 0 : mWindowCornerRadius;
+            float fullscreenCornerRadius = dp.isMultiWindowMode ? 0 : mWindowCornerRadius;
 
             mCurrentDrawnCornerRadius =
                     Utilities.mapRange(fullscreenProgress, mCornerRadius, fullscreenCornerRadius)
diff --git a/quickstep/src/com/android/quickstep/util/LayoutUtils.java b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
index 4edf2fb..14e5485 100644
--- a/quickstep/src/com/android/quickstep/util/LayoutUtils.java
+++ b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
@@ -17,31 +17,17 @@
 
 import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
 import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
-
-import static java.lang.annotation.RetentionPolicy.SOURCE;
+import static com.android.quickstep.util.WindowSizeStrategy.LAUNCHER_ACTIVITY_SIZE_STRATEGY;
 
 import android.content.Context;
-import android.content.res.Resources;
 import android.graphics.Rect;
 
-import androidx.annotation.AnyThread;
-import androidx.annotation.IntDef;
-
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.quickstep.SysUINavigationMode;
 
-import java.lang.annotation.Retention;
-
 public class LayoutUtils {
 
-    private static final int MULTI_WINDOW_STRATEGY_HALF_SCREEN = 1;
-    private static final int MULTI_WINDOW_STRATEGY_DEVICE_PROFILE = 2;
-
-    @Retention(SOURCE)
-    @IntDef({MULTI_WINDOW_STRATEGY_HALF_SCREEN, MULTI_WINDOW_STRATEGY_DEVICE_PROFILE})
-    private @interface MultiWindowStrategy {}
-
     /**
      * The height for the swipe up motion
      */
@@ -53,112 +39,11 @@
         return swipeHeight;
     }
 
-    public static void calculateLauncherTaskSize(Context context, DeviceProfile dp, Rect outRect) {
-        float extraSpace;
-        if (dp.isVerticalBarLayout()) {
-            extraSpace = 0;
-        } else {
-            Resources res = context.getResources();
-
-            if (ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context)) {
-                //TODO: this needs to account for the swipe gesture height and accessibility
-                // UI when shown.
-                extraSpace = res.getDimensionPixelSize(R.dimen.overview_actions_height);
-            } else {
-                extraSpace = getDefaultSwipeHeight(context, dp) + dp.workspacePageIndicatorHeight
-                        + res.getDimensionPixelSize(
-                                R.dimen.dynamic_grid_hotseat_extra_vertical_size)
-                        + res.getDimensionPixelSize(R.dimen.dynamic_grid_hotseat_bottom_padding);
-            }
-        }
-        calculateTaskSize(context, dp, extraSpace, MULTI_WINDOW_STRATEGY_HALF_SCREEN, outRect);
-    }
-
-    public static void calculateFallbackTaskSize(Context context, DeviceProfile dp, Rect outRect) {
-        float extraSpace;
-        if (ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context)) {
-            extraSpace = context.getResources()
-                    .getDimensionPixelSize(R.dimen.overview_actions_height);
-        } else {
-            extraSpace = 0;
-        }
-        calculateTaskSize(context, dp, extraSpace, MULTI_WINDOW_STRATEGY_DEVICE_PROFILE, outRect);
-    }
-
-    @AnyThread
-    public static void calculateTaskSize(Context context, DeviceProfile dp,
-            float extraVerticalSpace, @MultiWindowStrategy int multiWindowStrategy, Rect outRect) {
-        float taskWidth, taskHeight, paddingHorz;
-        Resources res = context.getResources();
-        Rect insets = dp.getInsets();
-        final boolean overviewActionsEnabled = ENABLE_OVERVIEW_ACTIONS.get();
-
-        if (dp.isMultiWindowMode) {
-            if (multiWindowStrategy == MULTI_WINDOW_STRATEGY_HALF_SCREEN) {
-                DeviceProfile fullDp = dp.getFullScreenProfile();
-                // Use availableWidthPx and availableHeightPx instead of widthPx and heightPx to
-                // account for system insets
-                taskWidth = fullDp.availableWidthPx;
-                taskHeight = fullDp.availableHeightPx;
-                float halfDividerSize = res.getDimension(R.dimen.multi_window_task_divider_size)
-                        / 2;
-
-                if (fullDp.isLandscape) {
-                    taskWidth = taskWidth / 2 - halfDividerSize;
-                } else {
-                    taskHeight = taskHeight / 2 - halfDividerSize;
-                }
-            } else {
-                // multiWindowStrategy == MULTI_WINDOW_STRATEGY_DEVICE_PROFILE
-                taskWidth = dp.widthPx;
-                taskHeight = dp.heightPx;
-            }
-            paddingHorz = res.getDimension(R.dimen.multi_window_task_card_horz_space);
-        } else {
-            taskWidth = dp.availableWidthPx;
-            taskHeight = dp.availableHeightPx;
-
-            final int paddingResId;
-            if (dp.isVerticalBarLayout()) {
-                paddingResId = R.dimen.landscape_task_card_horz_space;
-            } else if (overviewActionsEnabled && removeShelfFromOverview(context)) {
-                paddingResId = R.dimen.portrait_task_card_horz_space_big_overview;
-            } else {
-                paddingResId = R.dimen.portrait_task_card_horz_space;
-            }
-            paddingHorz = res.getDimension(paddingResId);
-        }
-
-        float topIconMargin = res.getDimension(R.dimen.task_thumbnail_top_margin);
-        float paddingVert = overviewActionsEnabled && removeShelfFromOverview(context)
-                ? 0 : res.getDimension(R.dimen.task_card_vert_space);
-
-        // Note this should be same as dp.availableWidthPx and dp.availableHeightPx unless
-        // we override the insets ourselves.
-        int launcherVisibleWidth = dp.widthPx - insets.left - insets.right;
-        int launcherVisibleHeight = dp.heightPx - insets.top - insets.bottom;
-
-        float availableHeight = launcherVisibleHeight
-                - topIconMargin - extraVerticalSpace - paddingVert;
-        float availableWidth = launcherVisibleWidth - paddingHorz;
-
-        float scale = Math.min(availableWidth / taskWidth, availableHeight / taskHeight);
-        float outWidth = scale * taskWidth;
-        float outHeight = scale * taskHeight;
-
-        // Center in the visible space
-        float x = insets.left + (launcherVisibleWidth - outWidth) / 2;
-        float y = insets.top + Math.max(topIconMargin,
-                (launcherVisibleHeight - extraVerticalSpace - outHeight) / 2);
-        outRect.set(Math.round(x), Math.round(y),
-                Math.round(x) + Math.round(outWidth), Math.round(y) + Math.round(outHeight));
-    }
-
     public static int getShelfTrackingDistance(Context context, DeviceProfile dp) {
         // Track the bottom of the window.
         if (ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context)) {
             Rect taskSize = new Rect();
-            calculateLauncherTaskSize(context, dp, taskSize);
+            LAUNCHER_ACTIVITY_SIZE_STRATEGY.calculateTaskSize(context, dp, taskSize);
             return (dp.heightPx - taskSize.height()) / 2;
         }
         int shelfHeight = dp.hotseatBarSizePx + dp.getInsets().bottom;
@@ -169,6 +54,7 @@
 
     /**
      * Gets the scale that should be applied to the TaskView so that it matches the target
+     * TODO: Remove this method
      */
     public static float getTaskScale(RecentsOrientedState orientedState,
             float srcWidth, float srcHeight, float targetWidth, float targetHeight) {
diff --git a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
index 97424fb..5ca2095 100644
--- a/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
+++ b/quickstep/src/com/android/quickstep/util/RecentsOrientedState.java
@@ -95,28 +95,29 @@
     private static final int FLAG_HOME_ROTATION_ALLOWED_IN_PREFS = 1 << 3;
     // If the user has enabled system rotation
     private static final int FLAG_SYSTEM_ROTATION_ALLOWED = 1 << 4;
+    // Multiple orientation is not supported in multiwindow mode
+    private static final int FLAG_MULTIWINDOW_ROTATION_ALLOWED = 1 << 5;
     // Whether to rotation sensor is supported on the device
-    private static final int FLAG_ROTATION_WATCHER_SUPPORTED = 1 << 5;
+    private static final int FLAG_ROTATION_WATCHER_SUPPORTED = 1 << 6;
     // Whether to enable rotation watcher when multi-rotation is supported
-    private static final int FLAG_ROTATION_WATCHER_ENABLED = 1 << 6;
+    private static final int FLAG_ROTATION_WATCHER_ENABLED = 1 << 7;
 
     private static final int MASK_MULTIPLE_ORIENTATION_SUPPORTED_BY_DEVICE =
             FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_ACTIVITY
             | FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_DENSITY
             | FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_FLAG;
 
-    private static final int MASK_ACTIVITY_ROTATING =
-            FLAG_HOME_ROTATION_ALLOWED_IN_PREFS | FLAG_SYSTEM_ROTATION_ALLOWED;
-
-    // State for which rotation watcher will be enabled.
-    // We skip it when home rotation is enabled as in that case, activity itself rotates
+    // State for which rotation watcher will be enabled. We skip it when home rotation or
+    // multi-window is enabled as in that case, activity itself rotates.
     private static final int VALUE_ROTATION_WATCHER_ENABLED =
             MASK_MULTIPLE_ORIENTATION_SUPPORTED_BY_DEVICE | FLAG_SYSTEM_ROTATION_ALLOWED
                     | FLAG_ROTATION_WATCHER_SUPPORTED | FLAG_ROTATION_WATCHER_ENABLED;
 
+    private final Context mContext;
     private final ContentResolver mContentResolver;
     private final SharedPreferences mSharedPrefs;
     private final OrientationEventListener mOrientationListener;
+    private final WindowSizeStrategy mSizeStrategy;
 
     private final Matrix mTmpMatrix = new Matrix();
     private final Matrix mTmpInverseMatrix = new Matrix();
@@ -129,10 +130,12 @@
      *                              is enabled
      * @see #setRotationWatcherEnabled(boolean)
      */
-    public RecentsOrientedState(Context context, boolean rotationSupportedByActivity,
+    public RecentsOrientedState(Context context, WindowSizeStrategy sizeStrategy,
             IntConsumer rotationChangeListener) {
+        mContext = context;
         mContentResolver = context.getContentResolver();
         mSharedPrefs = Utilities.getPrefs(context);
+        mSizeStrategy = sizeStrategy;
         mOrientationListener = new OrientationEventListener(context) {
             @Override
             public void onOrientationChanged(int degrees) {
@@ -144,7 +147,8 @@
             }
         };
 
-        mFlags = rotationSupportedByActivity ? FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_ACTIVITY : 0;
+        mFlags = sizeStrategy.rotationSupportedByActivity
+                ? FLAG_MULTIPLE_ORIENTATION_SUPPORTED_BY_ACTIVITY : 0;
 
         Resources res = context.getResources();
         int originalSmallestWidth = res.getConfiguration().smallestScreenWidthDp
@@ -161,6 +165,13 @@
     }
 
     /**
+     * Sets if the host is in multi-window mode
+     */
+    public void setMultiWindowMode(boolean isMultiWindow) {
+        setFlag(FLAG_MULTIWINDOW_ROTATION_ALLOWED, isMultiWindow);
+    }
+
+    /**
      * Sets the appropriate {@link PagedOrientationHandler} for {@link #mOrientationHandler}
      * @param touchRotation The rotation the nav bar region that is touched is in
      * @param displayRotation Rotation of the display/device
@@ -297,11 +308,12 @@
     }
 
     public boolean isHomeRotationAllowed() {
-        return (mFlags & FLAG_HOME_ROTATION_ALLOWED_IN_PREFS) != 0;
+        return (mFlags & (FLAG_HOME_ROTATION_ALLOWED_IN_PREFS | FLAG_MULTIWINDOW_ROTATION_ALLOWED))
+                != 0;
     }
 
     public boolean canLauncherRotate() {
-        return (mFlags & MASK_ACTIVITY_ROTATING) == MASK_ACTIVITY_ROTATING;
+        return (mFlags & FLAG_SYSTEM_ROTATION_ALLOWED) != 0 && isHomeRotationAllowed();
     }
 
     /**
@@ -332,11 +344,22 @@
         Rect insets = dp.getInsets();
         float fullWidth = dp.widthPx - insets.left - insets.right;
         float fullHeight = dp.heightPx - insets.top - insets.bottom;
-        final float scale = LayoutUtils.getTaskScale(this,
-                fullWidth, fullHeight, taskView.width(), taskView.height());
+
+        if (dp.isMultiWindowMode) {
+            mSizeStrategy.getMultiWindowSize(mContext, dp, outPivot);
+        } else {
+            outPivot.set(fullWidth, fullHeight);
+        }
+        final float scale = Math.min(outPivot.x / taskView.width(), outPivot.y / taskView.height());
 
         if (scale == 1) {
             outPivot.set(fullWidth / 2, fullHeight / 2);
+        } else if (dp.isMultiWindowMode) {
+            float denominator = 1 / (scale - 1);
+            // Ensure that the task aligns to right bottom for the root view
+            float y = (scale * taskView.bottom - fullHeight) * denominator;
+            float x = (scale * taskView.right - fullWidth) * denominator;
+            outPivot.set(x, y);
         } else {
             float factor = scale / (scale - 1);
             outPivot.set(taskView.left * factor, taskView.top * factor);
diff --git a/quickstep/src/com/android/quickstep/util/WindowSizeStrategy.java b/quickstep/src/com/android/quickstep/util/WindowSizeStrategy.java
new file mode 100644
index 0000000..8bb0d70
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/WindowSizeStrategy.java
@@ -0,0 +1,169 @@
+/*
+ * 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.quickstep.util;
+
+import static com.android.launcher3.config.FeatureFlags.ENABLE_OVERVIEW_ACTIONS;
+import static com.android.quickstep.SysUINavigationMode.removeShelfFromOverview;
+import static com.android.quickstep.util.LayoutUtils.getDefaultSwipeHeight;
+
+import android.content.Context;
+import android.content.res.Resources;
+import android.graphics.PointF;
+import android.graphics.Rect;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.R;
+
+/**
+ * Utility class to wrap different layout behavior for Launcher and RecentsView
+ * TODO: Merge is with {@link com.android.quickstep.BaseActivityInterface} once we remove the
+ * state dependent members from {@link com.android.quickstep.LauncherActivityInterface}
+ */
+public abstract class WindowSizeStrategy {
+
+    private final PointF mTempPoint = new PointF();
+    public final boolean rotationSupportedByActivity;
+
+    private WindowSizeStrategy(boolean rotationSupportedByActivity) {
+        this.rotationSupportedByActivity = rotationSupportedByActivity;
+    }
+
+    /**
+     * Sets the expected window size in multi-window mode
+     */
+    public abstract void getMultiWindowSize(Context context, DeviceProfile dp, PointF out);
+
+    /**
+     * Calculates the taskView size for the provided device configuration
+     */
+    public final void calculateTaskSize(Context context, DeviceProfile dp, Rect outRect) {
+        calculateTaskSize(context, dp, getExtraSpace(context, dp), outRect);
+    }
+
+    abstract float getExtraSpace(Context context, DeviceProfile dp);
+
+    private void calculateTaskSize(
+            Context context, DeviceProfile dp, float extraVerticalSpace, Rect outRect) {
+        float taskWidth, taskHeight, paddingHorz;
+        Resources res = context.getResources();
+        Rect insets = dp.getInsets();
+        final boolean showLargeTaskSize = showOverviewActions(context);
+
+        if (dp.isMultiWindowMode) {
+            getMultiWindowSize(context, dp, mTempPoint);
+            taskWidth = mTempPoint.x;
+            taskHeight = mTempPoint.y;
+            paddingHorz = res.getDimension(R.dimen.multi_window_task_card_horz_space);
+        } else {
+            taskWidth = dp.availableWidthPx;
+            taskHeight = dp.availableHeightPx;
+
+            final int paddingResId;
+            if (dp.isVerticalBarLayout()) {
+                paddingResId = R.dimen.landscape_task_card_horz_space;
+            } else if (showLargeTaskSize) {
+                paddingResId = R.dimen.portrait_task_card_horz_space_big_overview;
+            } else {
+                paddingResId = R.dimen.portrait_task_card_horz_space;
+            }
+            paddingHorz = res.getDimension(paddingResId);
+        }
+
+        float topIconMargin = res.getDimension(R.dimen.task_thumbnail_top_margin);
+        float paddingVert = showLargeTaskSize
+                ? 0 : res.getDimension(R.dimen.task_card_vert_space);
+
+        // Note this should be same as dp.availableWidthPx and dp.availableHeightPx unless
+        // we override the insets ourselves.
+        int launcherVisibleWidth = dp.widthPx - insets.left - insets.right;
+        int launcherVisibleHeight = dp.heightPx - insets.top - insets.bottom;
+
+        float availableHeight = launcherVisibleHeight
+                - topIconMargin - extraVerticalSpace - paddingVert;
+        float availableWidth = launcherVisibleWidth - paddingHorz;
+
+        float scale = Math.min(availableWidth / taskWidth, availableHeight / taskHeight);
+        float outWidth = scale * taskWidth;
+        float outHeight = scale * taskHeight;
+
+        // Center in the visible space
+        float x = insets.left + (launcherVisibleWidth - outWidth) / 2;
+        float y = insets.top + Math.max(topIconMargin,
+                (launcherVisibleHeight - extraVerticalSpace - outHeight) / 2);
+        outRect.set(Math.round(x), Math.round(y),
+                Math.round(x) + Math.round(outWidth), Math.round(y) + Math.round(outHeight));
+    }
+
+
+    public static final WindowSizeStrategy LAUNCHER_ACTIVITY_SIZE_STRATEGY =
+            new WindowSizeStrategy(true) {
+
+        @Override
+        public void getMultiWindowSize(Context context, DeviceProfile dp, PointF out) {
+            DeviceProfile fullDp = dp.getFullScreenProfile();
+            // Use availableWidthPx and availableHeightPx instead of widthPx and heightPx to
+            // account for system insets
+            out.set(fullDp.availableWidthPx, fullDp.availableHeightPx);
+            float halfDividerSize = context.getResources()
+                    .getDimension(R.dimen.multi_window_task_divider_size) / 2;
+
+            if (fullDp.isLandscape) {
+                out.x = out.x / 2 - halfDividerSize;
+            } else {
+                out.y = out.y / 2 - halfDividerSize;
+            }
+        }
+
+        @Override
+        float getExtraSpace(Context context, DeviceProfile dp) {
+            if (dp.isVerticalBarLayout()) {
+                return  0;
+            } else {
+                Resources res = context.getResources();
+                if (showOverviewActions(context)) {
+                    //TODO: this needs to account for the swipe gesture height and accessibility
+                    // UI when shown.
+                    return res.getDimensionPixelSize(R.dimen.overview_actions_height);
+                } else {
+                    return getDefaultSwipeHeight(context, dp) + dp.workspacePageIndicatorHeight
+                            + res.getDimensionPixelSize(
+                                    R.dimen.dynamic_grid_hotseat_extra_vertical_size)
+                            + res.getDimensionPixelSize(
+                                    R.dimen.dynamic_grid_hotseat_bottom_padding);
+                }
+            }
+        }
+    };
+
+    public static final WindowSizeStrategy FALLBACK_RECENTS_SIZE_STRATEGY =
+            new WindowSizeStrategy(false) {
+        @Override
+        public void getMultiWindowSize(Context context, DeviceProfile dp, PointF out) {
+            out.set(dp.widthPx, dp.heightPx);
+        }
+
+        @Override
+        float getExtraSpace(Context context, DeviceProfile dp) {
+            return showOverviewActions(context)
+                    ? context.getResources().getDimensionPixelSize(R.dimen.overview_actions_height)
+                    : 0;
+        }
+    };
+
+    static boolean showOverviewActions(Context context) {
+        return ENABLE_OVERVIEW_ACTIONS.get() && removeShelfFromOverview(context);
+    }
+}
diff --git a/src/com/android/launcher3/BaseDraggingActivity.java b/src/com/android/launcher3/BaseDraggingActivity.java
index e4f201c..db69341 100644
--- a/src/com/android/launcher3/BaseDraggingActivity.java
+++ b/src/com/android/launcher3/BaseDraggingActivity.java
@@ -24,6 +24,7 @@
 import android.content.Intent;
 import android.content.pm.LauncherApps;
 import android.content.res.Configuration;
+import android.graphics.Point;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.Process;
@@ -31,6 +32,7 @@
 import android.os.UserHandle;
 import android.util.Log;
 import android.view.ActionMode;
+import android.view.Display;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.Toast;
@@ -270,4 +272,16 @@
     }
 
     protected abstract void reapplyUi();
+
+    protected Rect getMultiWindowDisplaySize() {
+        if (Utilities.ATLEAST_R) {
+            return new Rect(getWindowManager().getCurrentWindowMetrics().getBounds());
+        }
+        // Note: Calls to getSize() can't rely on our cached DefaultDisplay since it can return
+        // the app window size
+        Display display = getWindowManager().getDefaultDisplay();
+        Point mwSize = new Point();
+        display.getSize(mwSize);
+        return new Rect(0, 0, mwSize.x, mwSize.y);
+    }
 }
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index a5f98c0..47824b2 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -45,6 +45,8 @@
     public final boolean isLandscape;
     public final boolean isMultiWindowMode;
 
+    public final int windowX;
+    public final int windowY;
     public final int widthPx;
     public final int heightPx;
     public final int availableWidthPx;
@@ -133,13 +135,16 @@
     public DotRenderer mDotRendererWorkSpace;
     public DotRenderer mDotRendererAllApps;
 
-    public DeviceProfile(Context context, InvariantDeviceProfile inv, DefaultDisplay.Info info,
+    DeviceProfile(Context context, InvariantDeviceProfile inv, DefaultDisplay.Info info,
             Point minSize, Point maxSize, int width, int height, boolean isLandscape,
-            boolean isMultiWindowMode, boolean transposeLayoutWithOrientation) {
+            boolean isMultiWindowMode, boolean transposeLayoutWithOrientation,
+            Point windowPosition) {
 
         this.inv = inv;
         this.isLandscape = isLandscape;
         this.isMultiWindowMode = isMultiWindowMode;
+        windowX = windowPosition.x;
+        windowY = windowPosition.y;
 
         // Determine sizes.
         widthPx = width;
@@ -244,6 +249,7 @@
         return new Builder(context, inv, mInfo)
                 .setSizeRange(size, size)
                 .setSize(widthPx, heightPx)
+                .setWindowPosition(windowX, windowY)
                 .setMultiWindowMode(isMultiWindowMode);
     }
 
@@ -254,10 +260,11 @@
     /**
      * TODO: Move this to the builder as part of setMultiWindowMode
      */
-    public DeviceProfile getMultiWindowProfile(Context context, Point mwSize) {
+    public DeviceProfile getMultiWindowProfile(Context context, Rect windowPosition) {
         // We take the minimum sizes of this profile and it's multi-window variant to ensure that
         // the system decor is always excluded.
-        mwSize.set(Math.min(availableWidthPx, mwSize.x), Math.min(availableHeightPx, mwSize.y));
+        Point mwSize = new Point(Math.min(availableWidthPx, windowPosition.width()),
+                Math.min(availableHeightPx, windowPosition.height()));
 
         // In multi-window mode, we can have widthPx = availableWidthPx
         // and heightPx = availableHeightPx because Launcher uses the InvariantDeviceProfiles'
@@ -265,6 +272,7 @@
         DeviceProfile profile = toBuilder(context)
                 .setSizeRange(mwSize, mwSize)
                 .setSize(mwSize.x, mwSize.y)
+                .setWindowPosition(windowPosition.left, windowPosition.top)
                 .setMultiWindowMode(true)
                 .build();
 
@@ -286,7 +294,7 @@
     }
 
     /**
-     * Inverse of {@link #getMultiWindowProfile(Context, Point)}
+     * Inverse of {@link #getMultiWindowProfile(Context, Rect)}
      * @return device profile corresponding to the current orientation in non multi-window mode.
      */
     public DeviceProfile getFullScreenProfile() {
@@ -649,6 +657,7 @@
         private InvariantDeviceProfile mInv;
         private DefaultDisplay.Info mInfo;
 
+        private final Point mWindowPosition = new Point();
         private Point mMinSize, mMaxSize;
         private int mWidth, mHeight;
 
@@ -682,6 +691,14 @@
             return this;
         }
 
+        /**
+         * Sets the window position if not full-screen
+         */
+        public Builder setWindowPosition(int x, int y) {
+            mWindowPosition.set(x, y);
+            return this;
+        }
+
         public Builder setTransposeLayoutWithOrientation(boolean transposeLayoutWithOrientation) {
             mTransposeLayoutWithOrientation = transposeLayoutWithOrientation;
             return this;
@@ -690,7 +707,7 @@
         public DeviceProfile build() {
             return new DeviceProfile(mContext, mInv, mInfo, mMinSize, mMaxSize,
                     mWidth, mHeight, mIsLandscape, mIsMultiWindowMode,
-                    mTransposeLayoutWithOrientation);
+                    mTransposeLayoutWithOrientation, mWindowPosition);
         }
     }
 
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 070a392..2ca1878 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -57,7 +57,6 @@
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.database.sqlite.SQLiteDatabase;
-import android.graphics.Point;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.CancellationSignal;
@@ -69,7 +68,6 @@
 import android.text.method.TextKeyListener;
 import android.util.Log;
 import android.util.SparseArray;
-import android.view.Display;
 import android.view.KeyEvent;
 import android.view.KeyboardShortcutGroup;
 import android.view.KeyboardShortcutInfo;
@@ -560,12 +558,8 @@
         // Load configuration-specific DeviceProfile
         mDeviceProfile = idp.getDeviceProfile(this);
         if (isInMultiWindowMode()) {
-            // Note: Calls to getSize() can't rely on our cached DefaultDisplay since it can return
-            // the app window size
-            Display display = getWindowManager().getDefaultDisplay();
-            Point mwSize = new Point();
-            display.getSize(mwSize);
-            mDeviceProfile = mDeviceProfile.getMultiWindowProfile(this, mwSize);
+            mDeviceProfile = mDeviceProfile.getMultiWindowProfile(
+                    this, getMultiWindowDisplaySize());
         }
 
         onDeviceProfileInitiated();
diff --git a/src/com/android/launcher3/LauncherRootView.java b/src/com/android/launcher3/LauncherRootView.java
index b4fbbc3..226a924 100644
--- a/src/com/android/launcher3/LauncherRootView.java
+++ b/src/com/android/launcher3/LauncherRootView.java
@@ -64,15 +64,8 @@
     private void handleSystemWindowInsets(Rect insets) {
         mConsumedInsets.setEmpty();
         boolean drawInsetBar = false;
-        if (mLauncher.isInMultiWindowMode()
-                && (insets.left > 0 || insets.right > 0 || insets.bottom > 0)) {
-            mConsumedInsets.left = insets.left;
-            mConsumedInsets.right = insets.right;
-            mConsumedInsets.bottom = insets.bottom;
-            insets.set(0, insets.top, 0, 0);
-            drawInsetBar = true;
-        } else  if ((insets.right > 0 || insets.left > 0) &&
-                getContext().getSystemService(ActivityManager.class).isLowRamDevice()) {
+        if ((insets.right > 0 || insets.left > 0)
+                && getContext().getSystemService(ActivityManager.class).isLowRamDevice()) {
             mConsumedInsets.left = insets.left;
             mConsumedInsets.right = insets.right;
             insets.set(0, insets.top, 0, insets.bottom);
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 7baee95..8e33406 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -63,6 +63,8 @@
 import android.view.ViewConfiguration;
 import android.view.animation.Interpolator;
 
+import androidx.core.os.BuildCompat;
+
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dragndrop.FolderAdaptiveIcon;
 import com.android.launcher3.graphics.GridOptionsProvider;
@@ -104,6 +106,8 @@
     public static final String[] EMPTY_STRING_ARRAY = new String[0];
     public static final Person[] EMPTY_PERSON_ARRAY = new Person[0];
 
+    public static final boolean ATLEAST_R = BuildCompat.isAtLeastR();
+
     public static final boolean ATLEAST_Q = Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q;
 
     public static final boolean ATLEAST_P =