Merge "Remove unused recents freeform task code."
diff --git a/packages/SystemUI/src/com/android/systemui/recents/Recents.java b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
index b94f8e5..b96bd9b 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/Recents.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
@@ -191,7 +191,7 @@
 
     @Override
     public void start() {
-        sDebugFlags = new RecentsDebugFlags(mContext);
+        sDebugFlags = new RecentsDebugFlags();
         sSystemServicesProxy = SystemServicesProxy.getInstance(mContext);
         sConfiguration = new RecentsConfiguration(mContext);
         sTaskLoader = new RecentsTaskLoader(mContext);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index ed447c6..ab2181c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -79,7 +79,6 @@
 import com.android.systemui.recents.events.ui.ShowIncompatibleAppOverlayEvent;
 import com.android.systemui.recents.events.ui.StackViewScrolledEvent;
 import com.android.systemui.recents.events.ui.TaskViewDismissedEvent;
-import com.android.systemui.recents.events.ui.UpdateFreeformTaskViewVisibilityEvent;
 import com.android.systemui.recents.events.ui.UserInteractionEvent;
 import com.android.systemui.recents.events.ui.focus.DismissFocusedTaskViewEvent;
 import com.android.systemui.recents.events.ui.focus.FocusNextTaskViewEvent;
@@ -714,15 +713,11 @@
     }
 
     public final void onBusEvent(EnterRecentsWindowLastAnimationFrameEvent event) {
-        EventBus.getDefault().send(new UpdateFreeformTaskViewVisibilityEvent(true));
         mRecentsView.getViewTreeObserver().addOnPreDrawListener(this);
         mRecentsView.invalidate();
     }
 
     public final void onBusEvent(ExitRecentsWindowFirstAnimationFrameEvent event) {
-        if (mRecentsView.isLastTaskLaunchedFreeform()) {
-            EventBus.getDefault().send(new UpdateFreeformTaskViewVisibilityEvent(false));
-        }
         mRecentsView.getViewTreeObserver().addOnPreDrawListener(this);
         mRecentsView.invalidate();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
index 75f42af..cb00843 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
@@ -26,7 +26,7 @@
 /**
  * Tunable debug flags
  */
-public class RecentsDebugFlags implements TunerService.Tunable {
+public class RecentsDebugFlags {
 
     public static class Static {
         // Enables debug drawing for the transition thumbnail
@@ -51,20 +51,11 @@
     }
 
     /**
-     * We read the prefs once when we start the activity, then update them as the tuner changes
-     * the flags.
-     */
-    public RecentsDebugFlags(Context context) {
-        // Register all our flags, this will also call onTuningChanged() for each key, which will
-        // initialize the current state of each flag
-    }
-
-    /**
      * @return whether we are enabling fast toggling.
      */
     public boolean isFastToggleRecentsEnabled() {
         SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.hasFreeformWorkspaceSupport() || ssp.isTouchExplorationEnabled()) {
+        if (ssp.isTouchExplorationEnabled()) {
             return false;
         }
         return Static.EnableFastToggleTimeout;
@@ -76,9 +67,4 @@
     public boolean isPagingEnabled() {
         return Static.EnablePaging;
     }
-
-    @Override
-    public void onTuningChanged(String key, String newValue) {
-        EventBus.getDefault().send(new DebugFlagsChangedEvent());
-    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index 774e993..4e721d7 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -746,8 +746,7 @@
             stackLayout.getTaskStackBounds(displayRect, windowRect, systemInsets.top,
                     systemInsets.left, systemInsets.right, mTmpBounds);
             stackLayout.reset();
-            stackLayout.initialize(displayRect, windowRect, mTmpBounds,
-                    TaskStackLayoutAlgorithm.StackState.getStackStateForStack(stack));
+            stackLayout.initialize(displayRect, windowRect, mTmpBounds);
         }
     }
 
@@ -866,61 +865,29 @@
             getThumbnailTransitionActivityOptions(ActivityManager.RunningTaskInfo runningTask,
                     Rect windowOverrideRect) {
         final boolean isLowRamDevice = Recents.getConfiguration().isLowRamDevice;
-        if (runningTask != null
-                && runningTask.configuration.windowConfiguration.getWindowingMode()
-                == WINDOWING_MODE_FREEFORM) {
-            ArrayList<AppTransitionAnimationSpec> specs = new ArrayList<>();
-            ArrayList<Task> tasks = mDummyStackView.getStack().getStackTasks();
-            TaskStackLayoutAlgorithm stackLayout = mDummyStackView.getStackAlgorithm();
-            TaskStackViewScroller stackScroller = mDummyStackView.getScroller();
 
-            mDummyStackView.updateLayoutAlgorithm(true /* boundScroll */);
-            mDummyStackView.updateToInitialState();
+        // Update the destination rect
+        Task toTask = new Task();
+        TaskViewTransform toTransform = getThumbnailTransitionTransform(mDummyStackView, toTask,
+                windowOverrideRect);
 
-            for (int i = tasks.size() - 1; i >= 0; i--) {
-                Task task = tasks.get(i);
-                if (task.isFreeformTask()) {
-                    mTmpTransform = stackLayout.getStackTransformScreenCoordinates(task,
-                            stackScroller.getStackScroll(), mTmpTransform, null,
-                            windowOverrideRect);
-                    GraphicBuffer thumbnail = drawThumbnailTransitionBitmap(task, mTmpTransform);
-                    Rect toTaskRect = new Rect();
-                    mTmpTransform.rect.round(toTaskRect);
-                    specs.add(new AppTransitionAnimationSpec(task.key.id, thumbnail, toTaskRect));
-                }
-            }
-            AppTransitionAnimationSpec[] specsArray = new AppTransitionAnimationSpec[specs.size()];
-            specs.toArray(specsArray);
+        RectF toTaskRect = toTransform.rect;
+        AppTransitionAnimationSpecsFuture future =
+                new RecentsTransitionHelper(mContext).getAppTransitionFuture(
+                        () -> {
+                    Rect rect = new Rect();
+                    toTaskRect.round(rect);
+                    GraphicBuffer thumbnail = drawThumbnailTransitionBitmap(toTask,
+                            toTransform);
+                    return Lists.newArrayList(new AppTransitionAnimationSpec(
+                            toTask.key.id, thumbnail, rect));
+                });
 
-            // For low end ram devices, wait for transition flag is reset when Recents entrance
-            // animation is complete instead of when the transition animation starts
-            return new Pair<>(ActivityOptions.makeThumbnailAspectScaleDownAnimation(mDummyStackView,
-                    specsArray, mHandler, isLowRamDevice ? null : mResetToggleFlagListener, this),
-                    null);
-        } else {
-            // Update the destination rect
-            Task toTask = new Task();
-            TaskViewTransform toTransform = getThumbnailTransitionTransform(mDummyStackView, toTask,
-                    windowOverrideRect);
-
-            RectF toTaskRect = toTransform.rect;
-            AppTransitionAnimationSpecsFuture future =
-                    new RecentsTransitionHelper(mContext).getAppTransitionFuture(
-                            () -> {
-                        Rect rect = new Rect();
-                        toTaskRect.round(rect);
-                        GraphicBuffer thumbnail = drawThumbnailTransitionBitmap(toTask,
-                                toTransform);
-                        return Lists.newArrayList(new AppTransitionAnimationSpec(
-                                toTask.key.id, thumbnail, rect));
-                    });
-
-            // For low end ram devices, wait for transition flag is reset when Recents entrance
-            // animation is complete instead of when the transition animation starts
-            return new Pair<>(ActivityOptions.makeMultiThumbFutureAspectScaleAnimation(mContext,
-                    mHandler, future.getFuture(), isLowRamDevice ? null : mResetToggleFlagListener,
-                    false /* scaleUp */), future);
-        }
+        // For low end ram devices, wait for transition flag is reset when Recents entrance
+        // animation is complete instead of when the transition animation starts
+        return new Pair<>(ActivityOptions.makeMultiThumbFutureAspectScaleAnimation(mContext,
+                mHandler, future.getFuture(), isLowRamDevice ? null : mResetToggleFlagListener,
+                false /* scaleUp */), future);
     }
 
     /**
@@ -935,7 +902,7 @@
             runningTaskOut.copyFrom(launchTask);
         } else {
             // If no task is specified or we can not find the task just use the front most one
-            launchTask = stack.getStackFrontMostTask(true /* includeFreeform */);
+            launchTask = stack.getStackFrontMostTask();
             runningTaskOut.copyFrom(launchTask);
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateFreeformTaskViewVisibilityEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateFreeformTaskViewVisibilityEvent.java
deleted file mode 100644
index b42da9c..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateFreeformTaskViewVisibilityEvent.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2015 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.systemui.recents.events.ui;
-
-import com.android.systemui.recents.events.EventBus;
-
-/**
- * This is sent to update the visibility of all visible freeform task views.
- */
-public class UpdateFreeformTaskViewVisibilityEvent extends EventBus.Event {
-
-    public final boolean visible;
-
-    public UpdateFreeformTaskViewVisibilityEvent(boolean visible) {
-        this.visible = visible;
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/NamedCounter.java b/packages/SystemUI/src/com/android/systemui/recents/misc/NamedCounter.java
deleted file mode 100644
index ec3c39c..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/NamedCounter.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2014 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.systemui.recents.misc;
-
-/**
- * Used to generate successive incremented names.
- */
-public class NamedCounter {
-
-    int mCount;
-    String mPrefix = "";
-    String mSuffix = "";
-
-    public NamedCounter(String prefix, String suffix) {
-        mPrefix = prefix;
-        mSuffix = suffix;
-    }
-
-    /** Returns the next name. */
-    public String nextName() {
-        String name = mPrefix + mCount + mSuffix;
-        mCount++;
-        return name;
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
index b126a56..b1eb77d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
@@ -26,7 +26,6 @@
 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_SECONDARY;
 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
-import static android.provider.Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
@@ -46,7 +45,6 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.IPackageManager;
 import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
@@ -143,7 +141,6 @@
     private int mCurrentUserId;
 
     boolean mIsSafeMode;
-    boolean mHasFreeformWorkspaceSupport;
 
     Bitmap mDummyIcon;
     int mDummyThumbnailWidth;
@@ -318,10 +315,6 @@
                 ServiceManager.checkService(DreamService.DREAM_SERVICE));
         mDisplay = mWm.getDefaultDisplay();
         mRecentsPackage = context.getPackageName();
-        mHasFreeformWorkspaceSupport =
-                mPm.hasSystemFeature(PackageManager.FEATURE_FREEFORM_WINDOW_MANAGEMENT) ||
-                        Settings.Global.getInt(context.getContentResolver(),
-                                DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT, 0) != 0;
         mIsSafeMode = mPm.isSafeMode();
         mCurrentUserId = mAm.getCurrentUser();
 
@@ -530,13 +523,6 @@
     }
 
     /**
-     * Returns whether this device has freeform workspaces.
-     */
-    public boolean hasFreeformWorkspaceSupport() {
-        return mHasFreeformWorkspaceSupport;
-    }
-
-    /**
      * Returns whether this device is in the safe mode.
      */
     public boolean isInSafeMode() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
index 1c2b94f..62ba30b 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
@@ -100,7 +100,6 @@
      *
      * The tasks will be ordered by:
      * - least-recent to most-recent stack tasks
-     * - least-recent to most-recent freeform tasks
      *
      * Note: Do not lock, since this can be calling back to the loader, which separately also drives
      * this call (callers should synchronize on the loader before making this call).
@@ -155,7 +154,7 @@
             Task task = new Task(taskKey, icon,
                     thumbnail, title, titleDescription, dismissDescription, appInfoDescription,
                     activityColor, backgroundColor, isLaunchTarget, isStackTask, isSystemApp,
-                    t.supportsSplitScreenMultiWindow, t.bounds, t.taskDescription, t.resizeMode,
+                    t.supportsSplitScreenMultiWindow, t.taskDescription, t.resizeMode,
                     t.topActivity, isLocked);
 
             allTasks.add(task);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
index e8d419d..ae417c0 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
@@ -145,12 +145,6 @@
     public boolean useLightOnPrimaryColor;
 
     /**
-     * The bounds of the task, used only if it is a freeform task.
-     */
-    @ViewDebug.ExportedProperty(category="recents")
-    public Rect bounds;
-
-    /**
      * The task description for this task, only used to reload task icons.
      */
     public TaskDescription taskDescription;
@@ -188,7 +182,7 @@
     public Task(TaskKey key, Drawable icon, ThumbnailData thumbnail, String title,
             String titleDescription, String dismissDescription, String appInfoDescription,
             int colorPrimary, int colorBackground, boolean isLaunchTarget, boolean isStackTask,
-            boolean isSystemApp, boolean isDockable, Rect bounds, TaskDescription taskDescription,
+            boolean isSystemApp, boolean isDockable, TaskDescription taskDescription,
             int resizeMode, ComponentName topActivity, boolean isLocked) {
         this.key = key;
         this.icon = icon;
@@ -201,7 +195,6 @@
         this.colorBackground = colorBackground;
         this.useLightOnPrimaryColor = Utilities.computeContrastBetweenColors(this.colorPrimary,
                 Color.WHITE) > 3f;
-        this.bounds = bounds;
         this.taskDescription = taskDescription;
         this.isLaunchTarget = isLaunchTarget;
         this.isStackTask = isStackTask;
@@ -226,7 +219,6 @@
         this.colorPrimary = o.colorPrimary;
         this.colorBackground = o.colorBackground;
         this.useLightOnPrimaryColor = o.useLightOnPrimaryColor;
-        this.bounds = o.bounds;
         this.taskDescription = o.taskDescription;
         this.isLaunchTarget = o.isLaunchTarget;
         this.isStackTask = o.isStackTask;
@@ -262,14 +254,6 @@
         }
     }
 
-    /**
-     * Returns whether this task is on the freeform task stack.
-     */
-    public boolean isFreeformTask() {
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        return ssp.hasFreeformWorkspaceSupport() && key.windowingMode == WINDOWING_MODE_FREEFORM;
-    }
-
     /** Notifies the callback listeners that this task has been loaded */
     public void notifyTaskDataLoaded(ThumbnailData thumbnailData, Drawable applicationIcon) {
         this.icon = applicationIcon;
@@ -318,9 +302,6 @@
         if (isLaunchTarget) {
             writer.print(" launchTarget=Y");
         }
-        if (isFreeformTask()) {
-            writer.print(" freeform=Y");
-        }
         if (isLocked) {
             writer.print(" locked=Y");
         }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
index a0f5631..32e62cf 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
@@ -18,8 +18,6 @@
 
 import static android.app.ActivityManager.DOCKED_STACK_CREATE_MODE_BOTTOM_OR_RIGHT;
 import static android.app.ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.view.WindowManager.DOCKED_BOTTOM;
 import static android.view.WindowManager.DOCKED_INVALID;
 import static android.view.WindowManager.DOCKED_LEFT;
@@ -62,8 +60,6 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
 import java.util.List;
 
 
@@ -109,25 +105,6 @@
         updateFilteredTasks();
     }
 
-    /**
-     * Moves the given task.
-     */
-    public void setTaskWindowingMode(Task task, int insertIndex, int windowingMode) {
-        int taskIndex = indexOf(task);
-        if (taskIndex != insertIndex) {
-            mTasks.remove(taskIndex);
-            if (taskIndex < insertIndex) {
-                insertIndex--;
-            }
-            mTasks.add(insertIndex, task);
-        }
-
-        // Update the stack id now, after we've moved the task, and before we update the
-        // filtered tasks
-        task.setWindowingMode(windowingMode);
-        updateFilteredTasks();
-    }
-
     /** Sets the list of tasks */
     void set(List<Task> tasks) {
         mTasks.clear();
@@ -533,19 +510,6 @@
         }
     }
 
-    // A comparator that sorts tasks by their freeform state
-    private Comparator<Task> FREEFORM_COMPARATOR = new Comparator<Task>() {
-        @Override
-        public int compare(Task o1, Task o2) {
-            if (o1.isFreeformTask() && !o2.isFreeformTask()) {
-                return 1;
-            } else if (o2.isFreeformTask() && !o1.isFreeformTask()) {
-                return -1;
-            }
-            return Long.compare(o1.temporarySortIndexInStack, o2.temporarySortIndexInStack);
-        }
-    };
-
     ArrayList<Task> mRawTaskList = new ArrayList<>();
     FilteredTaskList mStackTaskList = new FilteredTaskList();
     TaskStackCallbacks mCb;
@@ -565,27 +529,6 @@
         mCb = cb;
     }
 
-    /** Sets the windowing mode for a given task. */
-    public void setTaskWindowingMode(Task task, int windowingMode) {
-        // Find the index to insert into
-        ArrayList<Task> taskList = mStackTaskList.getTasks();
-        int taskCount = taskList.size();
-        if (!task.isFreeformTask() && (windowingMode == WINDOWING_MODE_FREEFORM)) {
-            // Insert freeform tasks at the front
-            mStackTaskList.setTaskWindowingMode(task, taskCount, windowingMode);
-        } else if (task.isFreeformTask() && (windowingMode == WINDOWING_MODE_FULLSCREEN)) {
-            // Insert after the first stacked task
-            int insertIndex = 0;
-            for (int i = taskCount - 1; i >= 0; i--) {
-                if (!taskList.get(i).isFreeformTask()) {
-                    insertIndex = i + 1;
-                    break;
-                }
-            }
-            mStackTaskList.setTaskWindowingMode(task, insertIndex, windowingMode);
-        }
-    }
-
     /**
      * Removes a task from the stack, with an additional {@param animation} hint to the callbacks on
      * how they should update themselves.
@@ -602,7 +545,7 @@
             boolean dismissRecentsIfAllRemoved) {
         if (mStackTaskList.contains(t)) {
             mStackTaskList.remove(t);
-            Task newFrontMostTask = getStackFrontMostTask(false  /* includeFreeform */);
+            Task newFrontMostTask = getStackFrontMostTask();
             if (mCb != null) {
                 // Notify that a task has been removed
                 mCb.onStackTaskRemoved(this, t, newFrontMostTask, animation,
@@ -686,14 +629,13 @@
         for (int i = allTasks.size() - 1; i >= 0; i--) {
             allTasks.get(i).temporarySortIndexInStack = i;
         }
-        Collections.sort(allTasks, FREEFORM_COMPARATOR);
 
         mStackTaskList.set(allTasks);
         mRawTaskList = allTasks;
 
         // Only callback for the removed tasks after the stack has updated
         int removedTaskCount = removedTasks.size();
-        Task newFrontMostTask = getStackFrontMostTask(false);
+        Task newFrontMostTask = getStackFrontMostTask();
         for (int i = 0; i < removedTaskCount; i++) {
             mCb.onStackTaskRemoved(this, removedTasks.get(i), newFrontMostTask,
                     AnimationProps.IMMEDIATE, false /* fromDockGesture */,
@@ -715,18 +657,12 @@
     /**
      * Gets the front-most task in the stack.
      */
-    public Task getStackFrontMostTask(boolean includeFreeformTasks) {
+    public Task getStackFrontMostTask() {
         ArrayList<Task> stackTasks = mStackTaskList.getTasks();
         if (stackTasks.isEmpty()) {
             return null;
         }
-        for (int i = stackTasks.size() - 1; i >= 0; i--) {
-            Task task = stackTasks.get(i);
-            if (!task.isFreeformTask() || includeFreeformTasks) {
-                return task;
-            }
-        }
-        return null;
+        return stackTasks.get(stackTasks.size() - 1);
     }
 
     /** Gets the task keys */
@@ -749,22 +685,6 @@
     }
 
     /**
-     * Returns the set of "freeform" tasks in the stack.
-     */
-    public ArrayList<Task> getFreeformTasks() {
-        ArrayList<Task> freeformTasks = new ArrayList<>();
-        ArrayList<Task> tasks = mStackTaskList.getTasks();
-        int taskCount = tasks.size();
-        for (int i = 0; i < taskCount; i++) {
-            Task task = tasks.get(i);
-            if (task.isFreeformTask()) {
-                freeformTasks.add(task);
-            }
-        }
-        return freeformTasks;
-    }
-
-    /**
      * Computes a set of all the active and historical tasks.
      */
     public ArrayList<Task> computeAllTasksList() {
@@ -774,7 +694,7 @@
     }
 
     /**
-     * Returns the number of stack and freeform tasks.
+     * Returns the number of stacktasks.
      */
     public int getTaskCount() {
         return mStackTaskList.size();
@@ -784,32 +704,7 @@
      * Returns the number of stack tasks.
      */
     public int getStackTaskCount() {
-        ArrayList<Task> tasks = mStackTaskList.getTasks();
-        int stackCount = 0;
-        int taskCount = tasks.size();
-        for (int i = 0; i < taskCount; i++) {
-            Task task = tasks.get(i);
-            if (!task.isFreeformTask()) {
-                stackCount++;
-            }
-        }
-        return stackCount;
-    }
-
-    /**
-     * Returns the number of freeform tasks.
-     */
-    public int getFreeformTaskCount() {
-        ArrayList<Task> tasks = mStackTaskList.getTasks();
-        int freeformCount = 0;
-        int taskCount = tasks.size();
-        for (int i = 0; i < taskCount; i++) {
-            Task task = tasks.get(i);
-            if (task.isFreeformTask()) {
-                freeformCount++;
-            }
-        }
-        return freeformCount;
+        return mStackTaskList.size();
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/FreeformWorkspaceLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/views/FreeformWorkspaceLayoutAlgorithm.java
deleted file mode 100644
index 035c058..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/views/FreeformWorkspaceLayoutAlgorithm.java
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (C) 2014 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.systemui.recents.views;
-
-import android.content.Context;
-import android.graphics.RectF;
-import android.util.ArrayMap;
-
-import com.android.systemui.R;
-import com.android.systemui.recents.model.Task;
-
-import java.util.Collections;
-import java.util.List;
-
-/**
- * The layout logic for the contents of the freeform workspace.
- */
-public class FreeformWorkspaceLayoutAlgorithm {
-
-    // Optimization, allows for quick lookup of task -> rect
-    private ArrayMap<Task.TaskKey, RectF> mTaskRectMap = new ArrayMap<>();
-
-    private int mTaskPadding;
-
-    public FreeformWorkspaceLayoutAlgorithm(Context context) {
-        reloadOnConfigurationChange(context);
-    }
-
-    /**
-     * Reloads the layout for the current configuration.
-     */
-    public void reloadOnConfigurationChange(Context context) {
-        // This is applied to the edges of each task
-        mTaskPadding = context.getResources().getDimensionPixelSize(
-                R.dimen.recents_freeform_layout_task_padding) / 2;
-    }
-
-    /**
-     * Updates the layout for each of the freeform workspace tasks.  This is called after the stack
-     * layout is updated.
-     */
-    public void update(List<Task> freeformTasks, TaskStackLayoutAlgorithm stackLayout) {
-        Collections.reverse(freeformTasks);
-        mTaskRectMap.clear();
-
-        int numFreeformTasks = stackLayout.mNumFreeformTasks;
-        if (!freeformTasks.isEmpty()) {
-
-            // Normalize the widths so that we can calculate the best layout below
-            int workspaceWidth = stackLayout.mFreeformRect.width();
-            int workspaceHeight = stackLayout.mFreeformRect.height();
-            float normalizedWorkspaceWidth = (float) workspaceWidth / workspaceHeight;
-            float normalizedWorkspaceHeight = 1f;
-            float[] normalizedTaskWidths = new float[numFreeformTasks];
-            for (int i = 0; i < numFreeformTasks; i++) {
-                Task task = freeformTasks.get(i);
-                float rowTaskWidth;
-                if (task.bounds != null) {
-                    rowTaskWidth = (float) task.bounds.width() / task.bounds.height();
-                } else {
-                    // If this is a stack task that was dragged into the freeform workspace, then
-                    // the task will not yet have an associated bounds, so assume the full workspace
-                    // width for the time being
-                    rowTaskWidth = normalizedWorkspaceWidth;
-                }
-                // Bound the task width to the workspace width so that at the worst case, it will
-                // fit its own row
-                normalizedTaskWidths[i] = Math.min(rowTaskWidth, normalizedWorkspaceWidth);
-            }
-
-            // Determine the scale to best fit each of the tasks in the workspace
-            float rowScale = 0.85f;
-            float rowWidth = 0f;
-            float maxRowWidth = 0f;
-            int rowCount = 1;
-            for (int i = 0; i < numFreeformTasks;) {
-                float width = normalizedTaskWidths[i] * rowScale;
-                if (rowWidth + width > normalizedWorkspaceWidth) {
-                    // That is too long for this row, create new row
-                    if ((rowCount + 1) * rowScale > normalizedWorkspaceHeight) {
-                        // The new row is too high, so we need to try fitting again.  Update the
-                        // scale to be the smaller of the scale needed to fit the task in the
-                        // previous row, or the scale needed to fit the new row
-                        rowScale = Math.min(normalizedWorkspaceWidth / (rowWidth + width),
-                                normalizedWorkspaceHeight / (rowCount + 1));
-                        rowCount = 1;
-                        rowWidth = 0;
-                        i = 0;
-                    } else {
-                        // The new row fits, so continue
-                        rowWidth = width;
-                        rowCount++;
-                        i++;
-                    }
-                } else {
-                    // Task is OK in this row
-                    rowWidth += width;
-                    i++;
-                }
-                maxRowWidth = Math.max(rowWidth, maxRowWidth);
-            }
-
-            // Normalize each of the actual rects to that scale
-            float defaultRowLeft = ((1f - (maxRowWidth / normalizedWorkspaceWidth)) *
-                    workspaceWidth) / 2f;
-            float rowLeft = defaultRowLeft;
-            float rowTop = ((1f - (rowScale * rowCount)) * workspaceHeight) / 2f;
-            float rowHeight = rowScale * workspaceHeight;
-            for (int i = 0; i < numFreeformTasks; i++) {
-                Task task = freeformTasks.get(i);
-                float width = rowHeight * normalizedTaskWidths[i];
-                if (rowLeft + width > workspaceWidth) {
-                    // This goes on the next line
-                    rowTop += rowHeight;
-                    rowLeft = defaultRowLeft;
-                }
-                RectF rect = new RectF(rowLeft, rowTop, rowLeft + width, rowTop + rowHeight);
-                rect.inset(mTaskPadding, mTaskPadding);
-                rowLeft += width;
-                mTaskRectMap.put(task.key, rect);
-            }
-        }
-    }
-
-    /**
-     * Returns whether the transform is available for the given task.
-     */
-    public boolean isTransformAvailable(Task task, TaskStackLayoutAlgorithm stackLayout) {
-        if (stackLayout.mNumFreeformTasks == 0 || task == null) {
-            return false;
-        }
-        return mTaskRectMap.containsKey(task.key);
-    }
-
-    /**
-     * Returns the transform for the given task.  Any rect returned will be offset by the actual
-     * transform for the freeform workspace.
-     */
-    public TaskViewTransform getTransform(Task task, TaskViewTransform transformOut,
-            TaskStackLayoutAlgorithm stackLayout) {
-        if (mTaskRectMap.containsKey(task.key)) {
-            final RectF ffRect = mTaskRectMap.get(task.key);
-
-            transformOut.scale = 1f;
-            transformOut.alpha = 1f;
-            transformOut.translationZ = stackLayout.mMaxTranslationZ;
-            transformOut.dimAlpha = 0f;
-            transformOut.viewOutlineAlpha = TaskStackLayoutAlgorithm.OUTLINE_ALPHA_MAX_VALUE;
-            transformOut.rect.set(ffRect);
-            transformOut.rect.offset(stackLayout.mFreeformRect.left, stackLayout.mFreeformRect.top);
-            transformOut.visible = true;
-            return transformOut;
-        }
-        return null;
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
index 56b4e64..baa5e62 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
@@ -19,7 +19,6 @@
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_ASSISTANT;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
 import static android.app.WindowConfiguration.WINDOWING_MODE_SPLIT_SCREEN_PRIMARY;
@@ -318,7 +317,6 @@
 
         // If this is a full screen stack, the transition will be towards the single, full screen
         // task. We only need the transition spec for this task.
-        List<AppTransitionAnimationSpec> specs = new ArrayList<>();
 
         // TODO: Sometimes targetStackId is not initialized after reboot, so we also have to
         // check for INVALID_STACK_ID (now WINDOWING_MODE_UNDEFINED)
@@ -327,6 +325,7 @@
                 || windowingMode == WINDOWING_MODE_SPLIT_SCREEN_SECONDARY
                 || activityType == ACTIVITY_TYPE_ASSISTANT
                 || windowingMode == WINDOWING_MODE_UNDEFINED) {
+            List<AppTransitionAnimationSpec> specs = new ArrayList<>();
             if (taskView == null) {
                 specs.add(composeOffscreenAnimationSpec(task, offscreenTaskRect));
             } else {
@@ -340,34 +339,7 @@
             }
             return specs;
         }
-
-        // Otherwise, for freeform tasks, create a new animation spec for each task we have to
-        // launch
-        TaskStack stack = stackView.getStack();
-        ArrayList<Task> tasks = stack.getStackTasks();
-        int taskCount = tasks.size();
-        for (int i = taskCount - 1; i >= 0; i--) {
-            Task t = tasks.get(i);
-            if (t.isFreeformTask() || windowingMode == WINDOWING_MODE_FREEFORM) {
-                TaskView tv = stackView.getChildViewForTask(t);
-                if (tv == null) {
-                    // TODO: Create a different animation task rect for this case (though it should
-                    //       never happen)
-                    specs.add(composeOffscreenAnimationSpec(t, offscreenTaskRect));
-                } else {
-                    mTmpTransform.fillIn(taskView);
-                    stackLayout.transformToScreenCoordinates(mTmpTransform,
-                            null /* windowOverrideRect */);
-                    AppTransitionAnimationSpec spec = composeAnimationSpec(stackView, tv,
-                            mTmpTransform, true /* addHeaderBitmap */);
-                    if (spec != null) {
-                        specs.add(spec);
-                    }
-                }
-            }
-        }
-
-        return specs;
+        return Collections.emptyList();
     }
 
     /**
@@ -451,7 +423,7 @@
         // force the task thumbnail to full stackView height immediately causing the transition
         // jarring.
         if (!Recents.getConfiguration().isLowRamDevice && taskView.getTask() !=
-                stackView.getStack().getStackFrontMostTask(false /* includeFreeformTasks */)) {
+                stackView.getStack().getStackFrontMostTask()) {
             taskRect.bottom = taskRect.top + stackView.getMeasuredHeight();
         }
         return new AppTransitionAnimationSpec(taskView.getTask().key.id, b, taskRect);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
index e460bf8..e2f157e 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
@@ -110,7 +110,6 @@
     private final int mStackButtonShadowColor;
 
     private boolean mAwaitingFirstLayout = true;
-    private boolean mLastTaskLaunchedWasFreeform;
 
     @ViewDebug.ExportedProperty(category="recents")
     Rect mSystemInsets = new Rect();
@@ -228,7 +227,6 @@
 
         // Reset the state
         mAwaitingFirstLayout = !isResumingFromVisible;
-        mLastTaskLaunchedWasFreeform = false;
 
         // Update the stack
         mTaskStackView.onReload(isResumingFromVisible);
@@ -315,13 +313,6 @@
         }
     }
 
-    /**
-     * Returns whether the last task launched was in the freeform stack or not.
-     */
-    public boolean isLastTaskLaunchedFreeform() {
-        return mLastTaskLaunchedWasFreeform;
-    }
-
     /** Launches the focused task from the first stack if possible */
     public boolean launchFocusedTask(int logEvent) {
         if (mTaskStackView != null) {
@@ -538,7 +529,6 @@
     /**** EventBus Events ****/
 
     public final void onBusEvent(LaunchTaskEvent event) {
-        mLastTaskLaunchedWasFreeform = event.task.isFreeformTask();
         mTransitionHelper.launchTaskFromRecents(getStack(), event.task, mTaskStackView,
                 event.taskView, event.screenPinningRequested, event.targetWindowingMode,
                 event.targetActivityType);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
index f4862c3..f47c1d2 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
@@ -161,17 +161,12 @@
         for (int i = taskViews.size() - 1; i >= 0; i--) {
             TaskView tv = taskViews.get(i);
             Task task = tv.getTask();
-            boolean hideTask = launchTargetTask != null &&
-                    launchTargetTask.isFreeformTask() &&
-                    task.isFreeformTask();
 
             // Get the current transform for the task, which will be used to position it offscreen
             stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform,
                     null);
 
-            if (hideTask) {
-                tv.setVisibility(View.INVISIBLE);
-            } else if (launchState.launchedFromApp && !launchState.launchedViaDockGesture) {
+            if (launchState.launchedFromApp && !launchState.launchedViaDockGesture) {
                 if (task.isLaunchTarget) {
                     tv.onPrepareLaunchTargetForEnterAnimation();
                 } else if (isLowRamDevice && i >= taskViews.size() -
@@ -569,7 +564,7 @@
                 false /* ignoreTaskOverrides */, mTmpFinalTaskTransforms);
 
         // Hide the front most task view until the scroll is complete
-        Task frontMostTask = newStack.getStackFrontMostTask(false /* includeFreeform */);
+        Task frontMostTask = newStack.getStackFrontMostTask();
         final TaskView frontMostTaskView = mStackView.getChildViewForTask(frontMostTask);
         final TaskViewTransform frontMostTransform = mTmpFinalTaskTransforms.get(
                 stackTasks.indexOf(frontMostTask));
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
index b5e598d..af95b3c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
@@ -147,75 +147,6 @@
     }
 
     /**
-     * The various stack/freeform states.
-     */
-    public static class StackState {
-
-        public static final StackState FREEFORM_ONLY = new StackState(1f, 255);
-        public static final StackState STACK_ONLY = new StackState(0f, 0);
-        public static final StackState SPLIT = new StackState(0.5f, 255);
-
-        public final float freeformHeightPct;
-        public final int freeformBackgroundAlpha;
-
-        /**
-         * @param freeformHeightPct the percentage of the stack height (not including paddings) to
-         *                          allocate to the freeform workspace
-         * @param freeformBackgroundAlpha the background alpha for the freeform workspace
-         */
-        private StackState(float freeformHeightPct, int freeformBackgroundAlpha) {
-            this.freeformHeightPct = freeformHeightPct;
-            this.freeformBackgroundAlpha = freeformBackgroundAlpha;
-        }
-
-        /**
-         * Resolves the stack state for the layout given a task stack.
-         */
-        public static StackState getStackStateForStack(TaskStack stack) {
-            SystemServicesProxy ssp = Recents.getSystemServices();
-            boolean hasFreeformWorkspaces = ssp.hasFreeformWorkspaceSupport();
-            int freeformCount = stack.getFreeformTaskCount();
-            int stackCount = stack.getStackTaskCount();
-            if (hasFreeformWorkspaces && stackCount > 0 && freeformCount > 0) {
-                return SPLIT;
-            } else if (hasFreeformWorkspaces && freeformCount > 0) {
-                return FREEFORM_ONLY;
-            } else {
-                return STACK_ONLY;
-            }
-        }
-
-        /**
-         * Computes the freeform and stack rect for this state.
-         *
-         * @param freeformRectOut the freeform rect to be written out
-         * @param stackRectOut the stack rect, we only write out the top of the stack
-         * @param taskStackBounds the full rect that the freeform rect can take up
-         */
-        public void computeRects(Rect freeformRectOut, Rect stackRectOut,
-                Rect taskStackBounds, int topMargin, int freeformGap, int stackBottomOffset) {
-            // The freeform height is the visible height (not including system insets) - padding
-            // above freeform and below stack - gap between the freeform and stack
-            int availableHeight = taskStackBounds.height() - topMargin - stackBottomOffset;
-            int ffPaddedHeight = (int) (availableHeight * freeformHeightPct);
-            int ffHeight = Math.max(0, ffPaddedHeight - freeformGap);
-            freeformRectOut.set(taskStackBounds.left,
-                    taskStackBounds.top + topMargin,
-                    taskStackBounds.right,
-                    taskStackBounds.top + topMargin + ffHeight);
-            stackRectOut.set(taskStackBounds.left,
-                    taskStackBounds.top,
-                    taskStackBounds.right,
-                    taskStackBounds.bottom);
-            if (ffPaddedHeight > 0) {
-                stackRectOut.top += ffPaddedHeight;
-            } else {
-                stackRectOut.top += topMargin;
-            }
-        }
-    }
-
-    /**
      * @return True if we should use the grid layout.
      */
     boolean useGridLayout() {
@@ -234,15 +165,11 @@
     }
 
     Context mContext;
-    private StackState mState = StackState.SPLIT;
     private TaskStackLayoutAlgorithmCallbacks mCb;
 
     // The task bounds (untransformed) for layout.  This rect is anchored at mTaskRoot.
     @ViewDebug.ExportedProperty(category="recents")
     public Rect mTaskRect = new Rect();
-    // The freeform workspace bounds, inset by the top system insets and is a fixed height
-    @ViewDebug.ExportedProperty(category="recents")
-    public Rect mFreeformRect = new Rect();
     // The stack bounds, inset from the top system insets, and runs to the bottom of the screen
     @ViewDebug.ExportedProperty(category="recents")
     public Rect mStackRect = new Rect();
@@ -268,10 +195,6 @@
     private int mBaseBottomMargin;
     private int mMinMargin;
 
-    // The gap between the freeform and stack layouts
-    @ViewDebug.ExportedProperty(category="recents")
-    private int mFreeformStackGap;
-
     // The initial offset that the focused task is from the top
     @ViewDebug.ExportedProperty(category="recents")
     private int mInitialTopOffset;
@@ -331,8 +254,6 @@
     // The last computed task counts
     @ViewDebug.ExportedProperty(category="recents")
     int mNumStackTasks;
-    @ViewDebug.ExportedProperty(category="recents")
-    int mNumFreeformTasks;
 
     // The min/max z translations
     @ViewDebug.ExportedProperty(category="recents")
@@ -344,8 +265,6 @@
     private SparseIntArray mTaskIndexMap = new SparseIntArray();
     private SparseArray<Float> mTaskIndexOverrideMap = new SparseArray<>();
 
-    // The freeform workspace layout
-    FreeformWorkspaceLayoutAlgorithm mFreeformLayoutAlgorithm;
     TaskGridLayoutAlgorithm mTaskGridLayoutAlgorithm;
     TaskStackLowRamLayoutAlgorithm mTaskStackLowRamLayoutAlgorithm;
 
@@ -356,7 +275,6 @@
     public TaskStackLayoutAlgorithm(Context context, TaskStackLayoutAlgorithmCallbacks cb) {
         mContext = context;
         mCb = cb;
-        mFreeformLayoutAlgorithm = new FreeformWorkspaceLayoutAlgorithm(context);
         mTaskGridLayoutAlgorithm = new TaskGridLayoutAlgorithm(context);
         mTaskStackLowRamLayoutAlgorithm = new TaskStackLowRamLayoutAlgorithm(context);
         reloadOnConfigurationChange(context);
@@ -393,7 +311,6 @@
                 R.dimen.recents_layout_initial_bottom_offset_tablet,
                 R.dimen.recents_layout_initial_bottom_offset_tablet,
                 R.dimen.recents_layout_initial_bottom_offset_tablet);
-        mFreeformLayoutAlgorithm.reloadOnConfigurationChange(context);
         mTaskGridLayoutAlgorithm.reloadOnConfigurationChange(context);
         mTaskStackLowRamLayoutAlgorithm.reloadOnConfigurationChange(context);
         mMinMargin = res.getDimensionPixelSize(R.dimen.recents_layout_min_margin);
@@ -408,8 +325,6 @@
                 R.dimen.recents_layout_side_margin_tablet_xlarge,
                 R.dimen.recents_layout_side_margin_tablet);
         mBaseBottomMargin = res.getDimensionPixelSize(R.dimen.recents_layout_bottom_margin);
-        mFreeformStackGap =
-                res.getDimensionPixelSize(R.dimen.recents_freeform_layout_bottom_margin);
         mTitleBarHeight = getDimensionForDevice(mContext,
                 R.dimen.recents_task_view_header_height,
                 R.dimen.recents_task_view_header_height,
@@ -462,8 +377,7 @@
      * Computes the stack and task rects.  The given task stack bounds already has the top/right
      * insets and left/right padding already applied.
      */
-    public void initialize(Rect displayRect, Rect windowRect, Rect taskStackBounds,
-            StackState state) {
+    public void initialize(Rect displayRect, Rect windowRect, Rect taskStackBounds) {
         Rect lastStackRect = new Rect(mStackRect);
 
         int topMargin = getScaleForExtent(windowRect, displayRect, mBaseTopMargin, mMinMargin, HEIGHT);
@@ -474,10 +388,9 @@
         mInitialBottomOffset = mBaseInitialBottomOffset;
 
         // Compute the stack bounds
-        mState = state;
         mStackBottomOffset = mSystemInsets.bottom + bottomMargin;
-        state.computeRects(mFreeformRect, mStackRect, taskStackBounds, topMargin,
-                mFreeformStackGap, mStackBottomOffset);
+        mStackRect.set(taskStackBounds);
+        mStackRect.top += topMargin;
 
         // The stack action button will take the full un-padded header space above the stack
         mStackActionButtonRect.set(mStackRect.left, mStackRect.top - topMargin,
@@ -530,26 +443,20 @@
         if (tasks.isEmpty()) {
             mFrontMostTaskP = 0;
             mMinScrollP = mMaxScrollP = mInitialScrollP = 0;
-            mNumStackTasks = mNumFreeformTasks = 0;
+            mNumStackTasks = 0;
             return;
         }
 
-        // Filter the set of freeform and stack tasks
-        ArrayList<Task> freeformTasks = new ArrayList<>();
+        // Filter the set of stack tasks
         ArrayList<Task> stackTasks = new ArrayList<>();
         for (int i = 0; i < tasks.size(); i++) {
             Task task = tasks.get(i);
             if (ignoreTasksSet.contains(task.key)) {
                 continue;
             }
-            if (task.isFreeformTask()) {
-                freeformTasks.add(task);
-            } else {
-                stackTasks.add(task);
-            }
+            stackTasks.add(task);
         }
         mNumStackTasks = stackTasks.size();
-        mNumFreeformTasks = freeformTasks.size();
 
         // Put each of the tasks in the progress map at a fixed index (does not need to actually
         // map to a scroll position, just by index)
@@ -559,11 +466,6 @@
             mTaskIndexMap.put(task.key.id, i);
         }
 
-        // Update the freeform tasks
-        if (!freeformTasks.isEmpty()) {
-            mFreeformLayoutAlgorithm.update(freeformTasks, this);
-        }
-
         // Calculate the min/max/initial scroll
         Task launchTask = stack.getLaunchTarget();
         int launchTaskIndex = launchTask != null
@@ -582,7 +484,7 @@
             } else {
                 mInitialScrollP = Utilities.clamp(launchTaskIndex - 1, mMinScrollP, mMaxScrollP);
             }
-        } else if (!ssp.hasFreeformWorkspaceSupport() && mNumStackTasks == 1) {
+        } else if (mNumStackTasks == 1) {
             // If there is one stack task, ignore the min/max/initial scroll positions
             mMinScrollP = 0;
             mMaxScrollP = 0;
@@ -794,13 +696,6 @@
     }
 
     /**
-     * Returns the current stack state.
-     */
-    public StackState getStackState() {
-        return mState;
-    }
-
-    /**
      * Returns whether this stack layout has been initialized.
      */
     public boolean isInitialized() {
@@ -825,30 +720,19 @@
             return new VisibilityReport(1, 1);
         }
 
-        // Quick return when there are no stack tasks
-        if (mNumStackTasks == 0) {
-            return new VisibilityReport(mNumFreeformTasks > 0 ? Math.max(mNumFreeformTasks, 1) : 0,
-                    mNumFreeformTasks > 0 ? Math.max(mNumFreeformTasks, 1) : 0);
-        }
-
         // Otherwise, walk backwards in the stack and count the number of tasks and visible
-        // thumbnails and add that to the total freeform task count
+        // thumbnails and add that to the total task count
         TaskViewTransform tmpTransform = new TaskViewTransform();
         Range currentRange = getInitialFocusState() > 0f ? mFocusedRange : mUnfocusedRange;
         currentRange.offset(mInitialScrollP);
         int taskBarHeight = mContext.getResources().getDimensionPixelSize(
                 R.dimen.recents_task_view_header_height);
-        int numVisibleTasks = mNumFreeformTasks > 0 ? Math.max(mNumFreeformTasks, 1) : 0;
-        int numVisibleThumbnails = mNumFreeformTasks > 0 ? Math.max(mNumFreeformTasks, 0) : 0;
+        int numVisibleTasks = 0;
+        int numVisibleThumbnails = 0;
         float prevScreenY = Integer.MAX_VALUE;
         for (int i = tasks.size() - 1; i >= 0; i--) {
             Task task = tasks.get(i);
 
-            // Skip freeform
-            if (task.isFreeformTask()) {
-                continue;
-            }
-
             // Skip invisible
             float taskProgress = getStackScrollForTask(task);
             if (!currentRange.isInRange(taskProgress)) {
@@ -899,10 +783,7 @@
     public TaskViewTransform getStackTransform(Task task, float stackScroll, int focusState,
             TaskViewTransform transformOut, TaskViewTransform frontTransform, boolean forceUpdate,
             boolean ignoreTaskOverrides) {
-        if (mFreeformLayoutAlgorithm.isTransformAvailable(task, this)) {
-            mFreeformLayoutAlgorithm.getTransform(task, transformOut, this);
-            return transformOut;
-        } else if (useGridLayout()) {
+        if (useGridLayout()) {
             int taskIndex = mTaskIndexMap.get(task.key.id);
             int taskCount = mTaskIndexMap.size();
             mTaskGridLayoutAlgorithm.getTransform(taskIndex, taskCount, transformOut, this);
@@ -1017,7 +898,7 @@
         float z;
         float dimAlpha;
         float viewOutlineAlpha;
-        if (!ssp.hasFreeformWorkspaceSupport() && mNumStackTasks == 1 && !ignoreSingleTaskCase) {
+        if (mNumStackTasks == 1 && !ignoreSingleTaskCase) {
             // When there is exactly one task, then decouple the task from the stack and just move
             // in screen space
             float tmpP = (mMinScrollP - stackScroll) / mNumStackTasks;
@@ -1371,7 +1252,6 @@
         writer.print("insets="); writer.print(Utilities.dumpRect(mSystemInsets));
         writer.print(" stack="); writer.print(Utilities.dumpRect(mStackRect));
         writer.print(" task="); writer.print(Utilities.dumpRect(mTaskRect));
-        writer.print(" freeform="); writer.print(Utilities.dumpRect(mFreeformRect));
         writer.print(" actionButton="); writer.print(Utilities.dumpRect(mStackActionButtonRect));
         writer.println();
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index 7112600..fd29708 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -16,22 +16,15 @@
 
 package com.android.systemui.recents.views;
 
-import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
-
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.annotation.IntDef;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
-import android.graphics.Canvas;
 import android.graphics.Rect;
-import android.graphics.drawable.Drawable;
-import android.graphics.drawable.GradientDrawable;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.util.ArrayMap;
@@ -83,13 +76,11 @@
 import com.android.systemui.recents.events.ui.DismissTaskViewEvent;
 import com.android.systemui.recents.events.ui.RecentsGrowingEvent;
 import com.android.systemui.recents.events.ui.TaskViewDismissedEvent;
-import com.android.systemui.recents.events.ui.UpdateFreeformTaskViewVisibilityEvent;
 import com.android.systemui.recents.events.ui.UserInteractionEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragDropTargetChangedEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragEndCancelledEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragEndEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragStartEvent;
-import com.android.systemui.recents.events.ui.dragndrop.DragStartInitializeDropTargetsEvent;
 import com.android.systemui.recents.events.ui.focus.DismissFocusedTaskViewEvent;
 import com.android.systemui.recents.events.ui.focus.FocusNextTaskViewEvent;
 import com.android.systemui.recents.events.ui.focus.FocusPreviousTaskViewEvent;
@@ -153,8 +144,6 @@
     @ViewDebug.ExportedProperty(deepExport=true, prefix="touch_")
     private TaskStackViewTouchHandler mTouchHandler;
     private TaskStackAnimationHelper mAnimationHelper;
-    private GradientDrawable mFreeformWorkspaceBackground;
-    private ObjectAnimator mFreeformWorkspaceBackgroundAnimator;
     private ViewPool<TaskView, Task> mViewPool;
 
     private ArrayList<TaskView> mTaskViews = new ArrayList<>();
@@ -239,20 +228,6 @@
                 }
             };
 
-    // The drop targets for a task drag
-    private DropTarget mFreeformWorkspaceDropTarget = new DropTarget() {
-        @Override
-        public boolean acceptsDrop(int x, int y, int width, int height, Rect insets,
-                boolean isCurrentTarget) {
-            // This drop target has a fixed bounds and should be checked last, so just fall through
-            // if it is the current target
-            if (!isCurrentTarget) {
-                return mLayoutAlgorithm.mFreeformRect.contains(x, y);
-            }
-            return false;
-        }
-    };
-
     private DropTarget mStackDropTarget = new DropTarget() {
         @Override
         public boolean acceptsDrop(int x, int y, int width, int height, Rect insets,
@@ -312,17 +287,6 @@
             }
         });
         setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            setWillNotDraw(false);
-        }
-
-        mFreeformWorkspaceBackground = (GradientDrawable) getContext().getDrawable(
-                R.drawable.recents_freeform_workspace_bg);
-        mFreeformWorkspaceBackground.setCallback(this);
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            mFreeformWorkspaceBackground.setColor(
-                    getContext().getColor(R.color.recents_freeform_workspace_bg_color));
-        }
     }
 
     @Override
@@ -359,12 +323,7 @@
         readSystemFlags();
         mTaskViewsClipDirty = true;
         mUIDozeTrigger.stopDozing();
-        if (isResumingFromVisible) {
-            // Animate in the freeform workspace
-            int ffBgAlpha = mLayoutAlgorithm.getStackState().freeformBackgroundAlpha;
-            animateFreeformWorkspaceBackgroundAlpha(ffBgAlpha, new AnimationProps(150,
-                    Interpolators.FAST_OUT_SLOW_IN));
-        } else {
+        if (!isResumingFromVisible) {
             mStackScroller.reset();
             mStableLayoutAlgorithm.reset();
             mLayoutAlgorithm.reset();
@@ -422,23 +381,13 @@
 
     /**
      * Returns the front most task view.
-     *
-     * @param stackTasksOnly if set, will return the front most task view in the stack (by default
-     *                       the front most task view will be freeform since they are placed above
-     *                       stack tasks)
      */
-    private TaskView getFrontMostTaskView(boolean stackTasksOnly) {
+    private TaskView getFrontMostTaskView() {
         List<TaskView> taskViews = getTaskViews();
-        int taskViewCount = taskViews.size();
-        for (int i = taskViewCount - 1; i >= 0; i--) {
-            TaskView tv = taskViews.get(i);
-            Task task = tv.getTask();
-            if (stackTasksOnly && task.isFreeformTask()) {
-                continue;
-            }
-            return tv;
+        if (taskViews.isEmpty()) {
+            return null;
         }
-        return null;
+        return taskViews.get(taskViews.size() - 1);
     }
 
     /**
@@ -500,8 +449,6 @@
      * visible range includes all tasks at the target stack scroll. This is useful for ensure that
      * all views necessary for a transition or animation will be visible at the start.
      *
-     * This call ignores freeform tasks.
-     *
      * @param taskTransforms The set of task view transforms to reuse, this list will be sized to
      *                       match the size of {@param tasks}
      * @param tasks The set of tasks for which to generate transforms
@@ -554,12 +501,6 @@
                 continue;
             }
 
-            // For freeform tasks, only calculate the stack transform and skip the calculation of
-            // the visible stack indices
-            if (task.isFreeformTask()) {
-                continue;
-            }
-
             frontTransform = transform;
             frontTransformAtTarget = transformAtTarget;
             if (transform.visible) {
@@ -622,7 +563,7 @@
                 transform = mCurrentTaskTransforms.get(taskIndex);
             }
 
-            if (task.isFreeformTask() || (transform != null && transform.visible)) {
+            if (transform != null && transform.visible) {
                 mTmpTaskViewMap.put(task.key, tv);
             } else {
                 if (mTouchExplorationEnabled && Utilities.isDescendentAccessibilityFocused(tv)) {
@@ -643,24 +584,20 @@
                 continue;
             }
 
-            // Skip the invisible non-freeform stack tasks
-            if (!task.isFreeformTask() && !transform.visible) {
+            // Skip the invisible stack tasks
+            if (!transform.visible) {
                 continue;
             }
 
             TaskView tv = mTmpTaskViewMap.get(task.key);
             if (tv == null) {
                 tv = mViewPool.pickUpViewFromPool(task, task);
-                if (task.isFreeformTask()) {
-                    updateTaskViewToTransform(tv, transform, AnimationProps.IMMEDIATE);
+                if (transform.rect.top <= mLayoutAlgorithm.mStackRect.top) {
+                    updateTaskViewToTransform(tv, mLayoutAlgorithm.getBackOfStackTransform(),
+                            AnimationProps.IMMEDIATE);
                 } else {
-                    if (transform.rect.top <= mLayoutAlgorithm.mStackRect.top) {
-                        updateTaskViewToTransform(tv, mLayoutAlgorithm.getBackOfStackTransform(),
-                                AnimationProps.IMMEDIATE);
-                    } else {
-                        updateTaskViewToTransform(tv, mLayoutAlgorithm.getFrontOfStackTransform(),
-                                AnimationProps.IMMEDIATE);
-                    }
+                    updateTaskViewToTransform(tv, mLayoutAlgorithm.getFrontOfStackTransform(),
+                            AnimationProps.IMMEDIATE);
                 }
             } else {
                 // Reattach it in the right z order
@@ -887,13 +824,6 @@
         // Compute the min and max scroll values
         mLayoutAlgorithm.update(mStack, mIgnoreTasks, launchState);
 
-        // Update the freeform workspace background
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            mTmpRect.set(mLayoutAlgorithm.mFreeformRect);
-            mFreeformWorkspaceBackground.setBounds(mTmpRect);
-        }
-
         if (boundScrollToNewMinMax) {
             mStackScroller.boundScroll();
         }
@@ -906,8 +836,7 @@
         mWindowRect.set(mStableWindowRect);
         mStackBounds.set(mStableStackBounds);
         mLayoutAlgorithm.setSystemInsets(mStableLayoutAlgorithm.mSystemInsets);
-        mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds,
-                TaskStackLayoutAlgorithm.StackState.getStackStateForStack(mStack));
+        mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds);
         updateLayoutAlgorithm(true /* boundScroll */);
     }
 
@@ -1028,21 +957,10 @@
         if (focusedTask != null) {
             if (stackTasksOnly) {
                 List<Task> tasks =  mStack.getStackTasks();
-                if (focusedTask.isFreeformTask()) {
-                    // Try and focus the front most stack task
-                    TaskView tv = getFrontMostTaskView(stackTasksOnly);
-                    if (tv != null) {
-                        newIndex = mStack.indexOfStackTask(tv.getTask());
-                    }
-                } else {
-                    // Try the next task if it is a stack task
-                    int tmpNewIndex = newIndex + (forward ? -1 : 1);
-                    if (0 <= tmpNewIndex && tmpNewIndex < tasks.size()) {
-                        Task t = tasks.get(tmpNewIndex);
-                        if (!t.isFreeformTask()) {
-                            newIndex = tmpNewIndex;
-                        }
-                    }
+                // Try the next task if it is a stack task
+                int tmpNewIndex = newIndex + (forward ? -1 : 1);
+                if (0 <= tmpNewIndex && tmpNewIndex < tasks.size()) {
+                    newIndex = tmpNewIndex;
                 }
             } else {
                 // No restrictions, lets just move to the new task (looping forward/backwards if
@@ -1127,7 +1045,7 @@
                 return tv.getTask();
             }
         }
-        TaskView frontTv = getFrontMostTaskView(true /* stackTasksOnly */);
+        TaskView frontTv = getFrontMostTaskView();
         if (frontTv != null) {
             return frontTv.getTask();
         }
@@ -1278,10 +1196,8 @@
         }
 
         // Compute the rects in the stack algorithm
-        mStableLayoutAlgorithm.initialize(mDisplayRect, mStableWindowRect, mStableStackBounds,
-                TaskStackLayoutAlgorithm.StackState.getStackStateForStack(mStack));
-        mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds,
-                TaskStackLayoutAlgorithm.StackState.getStackStateForStack(mStack));
+        mStableLayoutAlgorithm.initialize(mDisplayRect, mStableWindowRect, mStableStackBounds);
+        mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds);
         updateLayoutAlgorithm(false /* boundScroll */);
 
         // If this is the first layout, then scroll to the front of the stack, then update the
@@ -1404,11 +1320,6 @@
         // Setup the view for the enter animation
         mAnimationHelper.prepareForEnterAnimation();
 
-        // Animate in the freeform workspace
-        int ffBgAlpha = mLayoutAlgorithm.getStackState().freeformBackgroundAlpha;
-        animateFreeformWorkspaceBackgroundAlpha(ffBgAlpha, new AnimationProps(150,
-                Interpolators.FAST_OUT_SLOW_IN));
-
         // Set the task focused state without requesting view focus, and leave the focus animations
         // until after the enter-animation
         RecentsConfiguration config = Recents.getConfiguration();
@@ -1456,43 +1367,6 @@
         return null;
     }
 
-    @Override
-    protected void onDraw(Canvas canvas) {
-        super.onDraw(canvas);
-
-        // Draw the freeform workspace background
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            if (mFreeformWorkspaceBackground.getAlpha() > 0) {
-                mFreeformWorkspaceBackground.draw(canvas);
-            }
-        }
-    }
-
-    @Override
-    protected boolean verifyDrawable(Drawable who) {
-        if (who == mFreeformWorkspaceBackground) {
-            return true;
-        }
-        return super.verifyDrawable(who);
-    }
-
-    /**
-     * Launches the freeform tasks.
-     */
-    public boolean launchFreeformTasks() {
-        ArrayList<Task> tasks = mStack.getFreeformTasks();
-        if (!tasks.isEmpty()) {
-            Task frontTask = tasks.get(tasks.size() - 1);
-            if (frontTask != null && frontTask.isFreeformTask()) {
-                EventBus.getDefault().send(new LaunchTaskEvent(getChildViewForTask(frontTask),
-                        frontTask, null, false));
-                return true;
-            }
-        }
-        return false;
-    }
-
     /**** TaskStackCallbacks Implementation ****/
 
     @Override
@@ -1671,8 +1545,7 @@
         }
 
         // Restore the action button visibility if it is the front most task view
-        if (mScreenPinningEnabled && tv.getTask() ==
-                mStack.getStackFrontMostTask(false /* includeFreeform */)) {
+        if (mScreenPinningEnabled && tv.getTask() == mStack.getStackFrontMostTask()) {
             tv.showActionButton(false /* fadeIn */, 0 /* fadeInDuration */);
         }
     }
@@ -1688,7 +1561,6 @@
 
         // If the doze trigger has already fired, then update the state for this task view
         if (mUIDozeTrigger.isAsleep() ||
-                Recents.getSystemServices().hasFreeformWorkspaceSupport() ||
                 useGridLayout() || Recents.getConfiguration().isLowRamDevice) {
             tv.setNoUserInteractionState();
         }
@@ -1820,7 +1692,7 @@
 
     public final void onBusEvent(LaunchMostRecentTaskRequestEvent event) {
         if (mStack.getTaskCount() > 0) {
-            Task mostRecentTask = mStack.getStackFrontMostTask(true /* includeFreefromTasks */);
+            Task mostRecentTask = mStack.getStackFrontMostTask();
             launchTask(mostRecentTask);
         }
     }
@@ -1891,11 +1763,6 @@
         // Start the task animations
         mAnimationHelper.startExitToHomeAnimation(event.animated, event.getAnimationTrigger());
 
-        // Dismiss the freeform workspace background
-        int taskViewExitToHomeDuration = TaskStackAnimationHelper.EXIT_TO_HOME_TRANSLATION_DURATION;
-        animateFreeformWorkspaceBackgroundAlpha(0, new AnimationProps(taskViewExitToHomeDuration,
-                Interpolators.FAST_OUT_SLOW_IN));
-
         // Dismiss the grid task view focus frame
         if (mTaskViewFocusFrame != null) {
             mTaskViewFocusFrame.moveGridTaskViewFocus(null);
@@ -2026,11 +1893,6 @@
         // Ensure that the drag task is not animated
         addIgnoreTask(event.task);
 
-        if (event.task.isFreeformTask()) {
-            // Animate to the front of the stack
-            mStackScroller.animateScroll(mLayoutAlgorithm.mInitialScrollP, null);
-        }
-
         // Enlarge the dragged view slightly
         float finalScale = event.taskView.getScaleX() * DRAG_SCALE_FACTOR;
         mLayoutAlgorithm.getStackTransform(event.task, getScroller().getStackScroll(),
@@ -2042,14 +1904,6 @@
                 new AnimationProps(DRAG_SCALE_DURATION, Interpolators.FAST_OUT_SLOW_IN));
     }
 
-    public final void onBusEvent(DragStartInitializeDropTargetsEvent event) {
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            event.handler.registerDropTargetForCurrentDrag(mStackDropTarget);
-            event.handler.registerDropTargetForCurrentDrag(mFreeformWorkspaceDropTarget);
-        }
-    }
-
     public final void onBusEvent(DragDropTargetChangedEvent event) {
         AnimationProps animation = new AnimationProps(SLOW_SYNC_STACK_DURATION,
                 Interpolators.FAST_OUT_SLOW_IN);
@@ -2069,8 +1923,7 @@
                     height, mDividerSize, systemInsets,
                     mLayoutAlgorithm, getResources(), mWindowRect));
             mLayoutAlgorithm.setSystemInsets(systemInsets);
-            mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds,
-                    TaskStackLayoutAlgorithm.StackState.getStackStateForStack(mStack));
+            mLayoutAlgorithm.initialize(mDisplayRect, mWindowRect, mStackBounds);
             updateLayoutAlgorithm(true /* boundScroll */);
             ignoreTaskOverrides = true;
         } else {
@@ -2092,32 +1945,6 @@
             return;
         }
 
-        boolean isFreeformTask = event.task.isFreeformTask();
-        boolean hasChangedWindowingMode =
-                (!isFreeformTask && event.dropTarget == mFreeformWorkspaceDropTarget) ||
-                        (isFreeformTask && event.dropTarget == mStackDropTarget);
-
-        if (hasChangedWindowingMode) {
-            // Move the task to the right position in the stack (ie. the front of the stack if
-            // freeform or the front of the stack if fullscreen). Note, we MUST move the tasks
-            // before we update their stack ids, otherwise, the keys will have changed.
-            if (event.dropTarget == mFreeformWorkspaceDropTarget) {
-                mStack.setTaskWindowingMode(event.task, WINDOWING_MODE_FREEFORM);
-            } else if (event.dropTarget == mStackDropTarget) {
-                mStack.setTaskWindowingMode(event.task, WINDOWING_MODE_FULLSCREEN);
-            }
-            updateLayoutAlgorithm(true /* boundScroll */);
-
-            // Move the task to the new stack in the system after the animation completes
-            event.addPostAnimationCallback(new Runnable() {
-                @Override
-                public void run() {
-                    SystemServicesProxy ssp = Recents.getSystemServices();
-                    ssp.setTaskWindowingMode(event.task.key.id, event.task.key.windowingMode);
-                }
-            });
-        }
-
         // Restore the task, so that relayout will apply to it below
         removeIgnoreTask(event.task);
 
@@ -2177,9 +2004,7 @@
             // Add a runnable to the post animation ref counter to clear all the views
             trigger.addLastDecrementRunnable(() -> {
                 // Start the dozer to trigger to trigger any UI that shows after a timeout
-                if (!Recents.getSystemServices().hasFreeformWorkspaceSupport()) {
-                    mUIDozeTrigger.startDozing();
-                }
+                mUIDozeTrigger.startDozing();
 
                 // Update the focused state here -- since we only set the focused task without
                 // requesting view focus in onFirstLayout(), actually request view focus and
@@ -2202,18 +2027,6 @@
         mStackReloaded = false;
     }
 
-    public final void onBusEvent(UpdateFreeformTaskViewVisibilityEvent event) {
-        List<TaskView> taskViews = getTaskViews();
-        int taskViewCount = taskViews.size();
-        for (int i = 0; i < taskViewCount; i++) {
-            TaskView tv = taskViews.get(i);
-            Task task = tv.getTask();
-            if (task.isFreeformTask()) {
-                tv.setVisibility(event.visible ? View.VISIBLE : View.INVISIBLE);
-            }
-        }
-    }
-
     public final void onBusEvent(final MultiWindowStateChangedEvent event) {
         if (event.inMultiWindow || !event.showDeferredAnimation) {
             setTasks(event.stack, true /* allowNotifyStackChanges */);
@@ -2315,27 +2128,6 @@
     }
 
     /**
-     * Starts an alpha animation on the freeform workspace background.
-     */
-    private void animateFreeformWorkspaceBackgroundAlpha(int targetAlpha,
-            AnimationProps animation) {
-        if (mFreeformWorkspaceBackground.getAlpha() == targetAlpha) {
-            return;
-        }
-
-        Utilities.cancelAnimationWithoutCallbacks(mFreeformWorkspaceBackgroundAnimator);
-        mFreeformWorkspaceBackgroundAnimator = ObjectAnimator.ofInt(mFreeformWorkspaceBackground,
-                Utilities.DRAWABLE_ALPHA, mFreeformWorkspaceBackground.getAlpha(), targetAlpha);
-        mFreeformWorkspaceBackgroundAnimator.setStartDelay(
-                animation.getDuration(AnimationProps.ALPHA));
-        mFreeformWorkspaceBackgroundAnimator.setDuration(
-                animation.getDuration(AnimationProps.ALPHA));
-        mFreeformWorkspaceBackgroundAnimator.setInterpolator(
-                animation.getInterpolator(AnimationProps.ALPHA));
-        mFreeformWorkspaceBackgroundAnimator.start();
-    }
-
-    /**
      * Returns the insert index for the task in the current set of task views. If the given task
      * is already in the task view list, then this method returns the insert index assuming it
      * is first removed at the previous index.
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
index 32a249c..1abaced 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
@@ -403,18 +403,6 @@
             return;
         }
 
-        // If tapping on the freeform workspace background, just launch the first freeform task
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            Rect freeformRect = mSv.mLayoutAlgorithm.mFreeformRect;
-            if (freeformRect.top <= y && y <= freeformRect.bottom) {
-                if (mSv.launchFreeformTasks()) {
-                    // TODO: Animate Recents away as we launch the freeform tasks
-                    return;
-                }
-            }
-        }
-
         // The user intentionally tapped on the background, which is like a tap on the "desktop".
         // Hide recents and transition to the launcher.
         EventBus.getDefault().send(new HideRecentsEvent(false, true));
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index 032d966..a75034a 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -194,9 +194,7 @@
      * Called from RecentsActivity when it is relaunched.
      */
     void onReload(boolean isResumingFromVisible) {
-        if (!Recents.getSystemServices().hasFreeformWorkspaceSupport()) {
-            resetNoUserInteractionState();
-        }
+        resetNoUserInteractionState();
         if (!isResumingFromVisible) {
             resetViewProperties();
         }
@@ -413,9 +411,7 @@
      * view.
      */
     boolean shouldClipViewInStack() {
-        // Never clip for freeform tasks or if invisible
-        if (mTask.isFreeformTask() || getVisibility() != View.VISIBLE ||
-                Recents.getConfiguration().isLowRamDevice) {
+        if (getVisibility() != View.VISIBLE || Recents.getConfiguration().isLowRamDevice) {
             return false;
         }
         return mClipViewInStack;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
index 198ecae..c4e4e2e 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
@@ -17,7 +17,6 @@
 package com.android.systemui.recents.views;
 
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
 
@@ -164,8 +163,6 @@
     float mDimAlpha;
     Drawable mLightDismissDrawable;
     Drawable mDarkDismissDrawable;
-    Drawable mLightFreeformIcon;
-    Drawable mDarkFreeformIcon;
     Drawable mLightFullscreenIcon;
     Drawable mDarkFullscreenIcon;
     Drawable mLightInfoIcon;
@@ -215,8 +212,6 @@
         mHighlightHeight = res.getDimensionPixelSize(R.dimen.recents_task_view_highlight);
         mTaskBarViewLightTextColor = context.getColor(R.color.recents_task_bar_light_text_color);
         mTaskBarViewDarkTextColor = context.getColor(R.color.recents_task_bar_dark_text_color);
-        mLightFreeformIcon = context.getDrawable(R.drawable.recents_move_task_freeform_light);
-        mDarkFreeformIcon = context.getDrawable(R.drawable.recents_move_task_freeform_dark);
         mLightFullscreenIcon = context.getDrawable(R.drawable.recents_move_task_fullscreen_light);
         mDarkFullscreenIcon = context.getDrawable(R.drawable.recents_move_task_fullscreen_dark);
         mLightInfoIcon = context.getDrawable(R.drawable.recents_info_light);
@@ -249,9 +244,6 @@
         mIconView.setOnLongClickListener(this);
         mTitleView = findViewById(R.id.title);
         mDismissButton = findViewById(R.id.dismiss_task);
-        if (ssp.hasFreeformWorkspaceSupport()) {
-            mMoveTaskButton = findViewById(R.id.move_task);
-        }
 
         onConfigurationChanged();
     }
@@ -341,20 +333,6 @@
         boolean showDismissIcon = true;
         int rightInset = width - getMeasuredWidth();
 
-        if (mTask != null && mTask.isFreeformTask()) {
-            // For freeform tasks, we always show the app icon, and only show the title, move-task
-            // icon, and the dismiss icon if there is room
-            int appIconWidth = mIconView.getMeasuredWidth();
-            int titleWidth = (int) mTitleView.getPaint().measureText(mTask.title);
-            int dismissWidth = mDismissButton.getMeasuredWidth();
-            int moveTaskWidth = mMoveTaskButton != null
-                    ? mMoveTaskButton.getMeasuredWidth()
-                    : 0;
-            showTitle = width >= (appIconWidth + dismissWidth + moveTaskWidth + titleWidth);
-            showMoveIcon = width >= (appIconWidth + dismissWidth + moveTaskWidth);
-            showDismissIcon = width >= (appIconWidth + dismissWidth);
-        }
-
         mTitleView.setVisibility(showTitle ? View.VISIBLE : View.INVISIBLE);
         if (mMoveTaskButton != null) {
             mMoveTaskButton.setVisibility(showMoveIcon ? View.VISIBLE : View.INVISIBLE);
@@ -482,25 +460,6 @@
         mDismissButton.setClickable(false);
         ((RippleDrawable) mDismissButton.getBackground()).setForceSoftware(true);
 
-        // When freeform workspaces are enabled, then update the move-task button depending on the
-        // current task
-        if (mMoveTaskButton != null) {
-            if (t.isFreeformTask()) {
-                mTaskWindowingMode = WINDOWING_MODE_FULLSCREEN;
-                mMoveTaskButton.setImageDrawable(t.useLightOnPrimaryColor
-                        ? mLightFullscreenIcon
-                        : mDarkFullscreenIcon);
-            } else {
-                mTaskWindowingMode = WINDOWING_MODE_FREEFORM;
-                mMoveTaskButton.setImageDrawable(t.useLightOnPrimaryColor
-                        ? mLightFreeformIcon
-                        : mDarkFreeformIcon);
-            }
-            mMoveTaskButton.setOnClickListener(this);
-            mMoveTaskButton.setClickable(false);
-            ((RippleDrawable) mMoveTaskButton.getBackground()).setForceSoftware(true);
-        }
-
         if (Recents.getDebugFlags().isFastToggleRecentsEnabled()) {
             if (mFocusTimerIndicator == null) {
                 mFocusTimerIndicator = (ProgressBar) Utilities.findViewStubById(this,
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
index a2190b3..d0ebc8d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewThumbnail.java
@@ -245,10 +245,6 @@
     public void updateThumbnailMatrix() {
         mThumbnailScale = 1f;
         if (mBitmapShader != null && mThumbnailData != null) {
-            // We consider this a stack task if it is not freeform (ie. has no bounds) or has been
-            // dragged into the stack from the freeform workspace
-            boolean isStackTask = !mTask.isFreeformTask() || mTask.bounds == null;
-            int xOffset, yOffset = 0;
             if (mTaskViewRect.isEmpty()) {
                 // If we haven't measured , skip the thumbnail drawing and only draw the background
                 // color
@@ -266,7 +262,7 @@
                     mThumbnailScale = (float) (mTaskViewRect.height() - mTitleBarHeight)
                             / (float) mThumbnailRect.height();
                 }
-            } else if (isStackTask) {
+            } else {
                 float invThumbnailScale = 1f / mFullscreenThumbnailScale;
                 if (mDisplayOrientation == Configuration.ORIENTATION_PORTRAIT) {
                     if (mThumbnailData.orientation == Configuration.ORIENTATION_PORTRAIT) {
@@ -283,12 +279,6 @@
                     // Otherwise, scale the screenshot to fit 1:1 in the current orientation
                     mThumbnailScale = invThumbnailScale;
                 }
-            } else {
-                // Otherwise, if this is a freeform task with task bounds, then scale the thumbnail
-                // to fit the entire bitmap into the task bounds
-                mThumbnailScale = Math.min(
-                        (float) mTaskViewRect.width() / mThumbnailRect.width(),
-                        (float) mTaskViewRect.height() / mThumbnailRect.height());
             }
             mMatrix.setTranslate(-mThumbnailData.insets.left * mFullscreenThumbnailScale,
                     -mThumbnailData.insets.top * mFullscreenThumbnailScale);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
index 397f24e..c9dbe2a 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
@@ -59,7 +59,7 @@
 
     public boolean visible = false;
 
-    // This is a window-space rect used for positioning the task in the stack and freeform workspace
+    // This is a window-space rect used for positioning the task in the stack
     public RectF rect = new RectF();
 
     /**