Merge "Ensure AOD icons don't appear on lockscreen" into main
diff --git a/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java b/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
index 9a178e5..18ee6f2 100644
--- a/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
+++ b/apex/jobscheduler/service/java/com/android/server/alarm/AlarmManagerService.java
@@ -165,6 +165,7 @@
 import com.android.server.SystemServiceManager;
 import com.android.server.SystemTimeZone;
 import com.android.server.SystemTimeZone.TimeZoneConfidence;
+import com.android.server.pm.UserManagerInternal;
 import com.android.server.pm.permission.PermissionManagerService;
 import com.android.server.pm.permission.PermissionManagerServiceInternal;
 import com.android.server.pm.pkg.AndroidPackage;
@@ -3763,8 +3764,10 @@
             }
             mNextAlarmClockForUser.put(userId, alarmClock);
             if (mStartUserBeforeScheduledAlarms) {
-                mUserWakeupStore.addUserWakeup(userId, convertToElapsed(
-                        mNextAlarmClockForUser.get(userId).getTriggerTime(), RTC));
+                if (shouldAddWakeupForUser(userId)) {
+                    mUserWakeupStore.addUserWakeup(userId, convertToElapsed(
+                            mNextAlarmClockForUser.get(userId).getTriggerTime(), RTC));
+                }
             }
         } else {
             if (DEBUG_ALARM_CLOCK) {
@@ -3784,6 +3787,23 @@
     }
 
     /**
+     * Checks whether the user is of type that needs to be started before the alarm.
+     */
+    @VisibleForTesting
+    boolean shouldAddWakeupForUser(@UserIdInt int userId) {
+        final UserManagerInternal umInternal = LocalServices.getService(UserManagerInternal.class);
+        if (umInternal.getUserInfo(userId) == null || umInternal.getUserInfo(userId).isGuest()) {
+            // Guest user should not be started in the background.
+            return false;
+        } else {
+            // SYSTEM user is always running, so no need to schedule wakeup for it.
+            // Profiles are excluded from the wakeup list because users can explicitly stop them and
+            // so starting them in the background would go against the user's intent.
+            return userId != UserHandle.USER_SYSTEM && umInternal.getUserInfo(userId).isFull();
+        }
+    }
+
+    /**
      * Updates NEXT_ALARM_FORMATTED and sends NEXT_ALARM_CLOCK_CHANGED_INTENT for all users
      * for which alarm clocks have changed since the last call to this.
      *
diff --git a/apex/jobscheduler/service/java/com/android/server/alarm/UserWakeupStore.java b/apex/jobscheduler/service/java/com/android/server/alarm/UserWakeupStore.java
index 93904a7..9fe197d 100644
--- a/apex/jobscheduler/service/java/com/android/server/alarm/UserWakeupStore.java
+++ b/apex/jobscheduler/service/java/com/android/server/alarm/UserWakeupStore.java
@@ -20,7 +20,6 @@
 import android.annotation.Nullable;
 import android.os.Environment;
 import android.os.SystemClock;
-import android.os.UserHandle;
 import android.util.AtomicFile;
 import android.util.IndentingPrintWriter;
 import android.util.Pair;
@@ -119,13 +118,10 @@
      * @param alarmTime time when alarm is expected to trigger.
      */
     public void addUserWakeup(int userId, long alarmTime) {
-        // SYSTEM user is always running, so no need to schedule wakeup for it.
-        if (userId != UserHandle.USER_SYSTEM) {
-            synchronized (mUserWakeupLock) {
-                mUserStarts.put(userId, alarmTime - BUFFER_TIME_MS + getUserWakeupOffset());
-            }
-            updateUserListFile();
+        synchronized (mUserWakeupLock) {
+            mUserStarts.put(userId, alarmTime - BUFFER_TIME_MS + getUserWakeupOffset());
         }
+        updateUserListFile();
     }
 
     /**
diff --git a/core/java/android/hardware/input/InputSettings.java b/core/java/android/hardware/input/InputSettings.java
index bec1c9e..d85e41d 100644
--- a/core/java/android/hardware/input/InputSettings.java
+++ b/core/java/android/hardware/input/InputSettings.java
@@ -25,6 +25,7 @@
 import static com.android.hardware.input.Flags.keyboardA11yStickyKeysFlag;
 import static com.android.hardware.input.Flags.keyboardA11yMouseKeys;
 import static com.android.hardware.input.Flags.touchpadTapDragging;
+import static com.android.hardware.input.Flags.touchpadVisualizer;
 import static com.android.input.flags.Flags.enableInputFilterRustImpl;
 
 import android.Manifest;
@@ -326,6 +327,15 @@
     }
 
     /**
+     * Returns true if the feature flag for touchpad visualizer is enabled.
+     *
+     * @hide
+     */
+    public static boolean isTouchpadVisualizerFeatureFlagEnabled() {
+        return touchpadVisualizer();
+    }
+
+    /**
      * Returns true if the touchpad should allow tap dragging.
      *
      * The returned value only applies to gesture-compatible touchpads.
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 0ee6f43..5703f69 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -5912,6 +5912,14 @@
         public static final String SHOW_KEY_PRESSES = "show_key_presses";
 
         /**
+         * Show touchpad input visualization on screen.
+         * 0 = no
+         * 1 = yes
+         * @hide
+         */
+        public static final String TOUCHPAD_VISUALIZER = "touchpad_visualizer";
+
+        /**
          * Show rotary input dispatched to focused windows on the screen.
          * 0 = no
          * 1 = yes
diff --git a/core/proto/android/providers/settings/system.proto b/core/proto/android/providers/settings/system.proto
index e5ced25..e795e809 100644
--- a/core/proto/android/providers/settings/system.proto
+++ b/core/proto/android/providers/settings/system.proto
@@ -69,6 +69,7 @@
         // 0 = no, 1 = yes
         optional SettingProto window_orientation_listener_log = 3 [ (android.privacy).dest = DEST_AUTOMATIC ];
         optional SettingProto show_key_presses = 4 [ (android.privacy).dest = DEST_AUTOMATIC ];
+        optional SettingProto touchpad_visualizer = 5 [ (android.privacy).dest = DEST_AUTOMATIC ];
     }
     optional DevOptions developer_options = 7;
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
index b71cd41..3e417b6 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
@@ -639,16 +639,23 @@
     /**
      * Quick-resize to the right or left half of the stable bounds.
      *
+     * @param taskInfo current task that is being snap-resized via dragging or maximize menu button
+     * @param currentDragBounds current position of the task leash being dragged (or current task
+     *                          bounds if being snapped resize via maximize menu button)
      * @param position the portion of the screen (RIGHT or LEFT) we want to snap the task to.
      */
-    fun snapToHalfScreen(taskInfo: RunningTaskInfo, position: SnapPosition) {
+    fun snapToHalfScreen(
+        taskInfo: RunningTaskInfo,
+        currentDragBounds: Rect,
+        position: SnapPosition
+    ) {
         val destinationBounds = getSnapBounds(taskInfo, position)
 
         if (destinationBounds == taskInfo.configuration.windowConfiguration.bounds) return
 
         val wct = WindowContainerTransaction().setBounds(taskInfo.token, destinationBounds)
         if (Transitions.ENABLE_SHELL_TRANSITIONS) {
-            toggleResizeDesktopTaskTransitionHandler.startTransition(wct)
+            toggleResizeDesktopTaskTransitionHandler.startTransition(wct, currentDragBounds)
         } else {
             shellTaskOrganizer.applyTransaction(wct)
         }
@@ -1266,7 +1273,7 @@
         taskSurface: SurfaceControl,
         inputX: Float,
         taskTop: Float
-    ): DesktopModeVisualIndicator.IndicatorType {
+    ): IndicatorType {
         // If the visual indicator does not exist, create it.
         val indicator =
             visualIndicator
@@ -1289,13 +1296,15 @@
      * @param taskInfo the task being dragged.
      * @param position position of surface when drag ends.
      * @param inputCoordinate the coordinates of the motion event
-     * @param taskBounds the updated bounds of the task being dragged.
+     * @param currentDragBounds the current bounds of where the visible task is (might be actual
+     *                          task bounds or just task leash)
+     * @param validDragArea the bounds of where the task can be dragged within the display.
      */
     fun onDragPositioningEnd(
         taskInfo: RunningTaskInfo,
         position: Point,
         inputCoordinate: PointF,
-        taskBounds: Rect,
+        currentDragBounds: Rect,
         validDragArea: Rect
     ) {
         if (taskInfo.configuration.windowConfiguration.windowingMode != WINDOWING_MODE_FREEFORM) {
@@ -1305,41 +1314,40 @@
         val indicator = visualIndicator ?: return
         val indicatorType =
             indicator.updateIndicatorType(
-                PointF(inputCoordinate.x, taskBounds.top.toFloat()),
+                PointF(inputCoordinate.x, currentDragBounds.top.toFloat()),
                 taskInfo.windowingMode
             )
         when (indicatorType) {
-            DesktopModeVisualIndicator.IndicatorType.TO_FULLSCREEN_INDICATOR -> {
+            IndicatorType.TO_FULLSCREEN_INDICATOR -> {
                 moveToFullscreenWithAnimation(
                     taskInfo,
                     position,
                     DesktopModeTransitionSource.TASK_DRAG
                 )
             }
-            DesktopModeVisualIndicator.IndicatorType.TO_SPLIT_LEFT_INDICATOR -> {
+            IndicatorType.TO_SPLIT_LEFT_INDICATOR -> {
                 releaseVisualIndicator()
-                snapToHalfScreen(taskInfo, SnapPosition.LEFT)
+                snapToHalfScreen(taskInfo, currentDragBounds, SnapPosition.LEFT)
             }
-            DesktopModeVisualIndicator.IndicatorType.TO_SPLIT_RIGHT_INDICATOR -> {
+            IndicatorType.TO_SPLIT_RIGHT_INDICATOR -> {
                 releaseVisualIndicator()
-                snapToHalfScreen(taskInfo, SnapPosition.RIGHT)
+                snapToHalfScreen(taskInfo, currentDragBounds, SnapPosition.RIGHT)
             }
-            DesktopModeVisualIndicator.IndicatorType.NO_INDICATOR -> {
-                // If task bounds are outside valid drag area, snap them inward and perform a
-                // transaction to set bounds.
-                if (
-                    DragPositioningCallbackUtility.snapTaskBoundsIfNecessary(
-                        taskBounds,
-                        validDragArea
-                    )
-                ) {
-                    val wct = WindowContainerTransaction()
-                    wct.setBounds(taskInfo.token, taskBounds)
-                    transitions.startTransition(TRANSIT_CHANGE, wct, null)
-                }
+            IndicatorType.NO_INDICATOR -> {
+                // If task bounds are outside valid drag area, snap them inward
+                DragPositioningCallbackUtility.snapTaskBoundsIfNecessary(
+                    currentDragBounds,
+                    validDragArea
+                )
+
+                // Update task bounds so that the task position will match the position of its leash
+                val wct = WindowContainerTransaction()
+                wct.setBounds(taskInfo.token, currentDragBounds)
+                transitions.startTransition(TRANSIT_CHANGE, wct, null)
+
                 releaseVisualIndicator()
             }
-            DesktopModeVisualIndicator.IndicatorType.TO_DESKTOP_INDICATOR -> {
+            IndicatorType.TO_DESKTOP_INDICATOR -> {
                 throw IllegalArgumentException(
                     "Should not be receiving TO_DESKTOP_INDICATOR for " + "a freeform task."
                 )
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ToggleResizeDesktopTaskTransitionHandler.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ToggleResizeDesktopTaskTransitionHandler.kt
index c35d77a..bf185a4 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ToggleResizeDesktopTaskTransitionHandler.kt
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ToggleResizeDesktopTaskTransitionHandler.kt
@@ -45,15 +45,24 @@
     private lateinit var onTaskResizeAnimationListener: OnTaskResizeAnimationListener
 
     private var boundsAnimator: Animator? = null
+    private var initialBounds: Rect? = null
 
     constructor(
         transitions: Transitions,
         interactionJankMonitor: InteractionJankMonitor
     ) : this(transitions, Supplier { SurfaceControl.Transaction() }, interactionJankMonitor)
 
-    /** Starts a quick resize transition. */
-    fun startTransition(wct: WindowContainerTransaction) {
+    /**
+     * Starts a quick resize transition.
+     *
+     *  @param wct WindowContainerTransaction that will update core about the task changes applied
+     *  @param taskLeashBounds current bounds of the task leash (Note: not guaranteed to be the
+     *                         bounds of the actual task). This is provided so that the animation
+     *                         resizing can begin where the task leash currently is for smoother UX.
+     */
+    fun startTransition(wct: WindowContainerTransaction, taskLeashBounds: Rect? = null) {
         transitions.startTransition(TRANSIT_DESKTOP_MODE_TOGGLE_RESIZE, wct, this)
+        initialBounds = taskLeashBounds
     }
 
     fun setOnTaskResizeAnimationListener(listener: OnTaskResizeAnimationListener) {
@@ -70,7 +79,7 @@
         val change = findRelevantChange(info)
         val leash = change.leash
         val taskId = checkNotNull(change.taskInfo).taskId
-        val startBounds = change.startAbsBounds
+        val startBounds = initialBounds ?: change.startAbsBounds
         val endBounds = change.endAbsBounds
 
         val tx = transactionSupplier.get()
@@ -92,7 +101,7 @@
                             onTaskResizeAnimationListener.onAnimationStart(
                                 taskId,
                                 startTransaction,
-                                startBounds
+                                startBounds,
                             )
                         },
                         onEnd = {
@@ -106,6 +115,7 @@
                                 .show(leash)
                             onTaskResizeAnimationListener.onAnimationEnd(taskId)
                             finishCallback.onTransitionFinished(null)
+                            initialBounds = null
                             boundsAnimator = null
                             interactionJankMonitor.end(
                                 Cuj.CUJ_DESKTOP_MODE_MAXIMIZE_WINDOW)
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
index 5a24198..81942e8 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
@@ -297,7 +297,7 @@
         mDisplayInsetsController.addInsetsChangedListener(mContext.getDisplayId(),
                 new DesktopModeOnInsetsChangedListener());
         mDesktopTasksController.setOnTaskResizeAnimationListener(
-                new DeskopModeOnTaskResizeAnimationListener());
+                new DesktopModeOnTaskResizeAnimationListener());
         try {
             mWindowManager.registerSystemGestureExclusionListener(mGestureExclusionListener,
                     mContext.getDisplayId());
@@ -437,6 +437,7 @@
             return;
         }
         mDesktopTasksController.snapToHalfScreen(decoration.mTaskInfo,
+                decoration.mTaskInfo.configuration.windowConfiguration.getBounds(),
                 left ? SnapPosition.LEFT : SnapPosition.RIGHT);
         decoration.closeHandleMenu();
         decoration.closeMaximizeMenu();
@@ -767,6 +768,9 @@
                             (int) (e.getRawY(dragPointerIdx) - e.getY(dragPointerIdx)));
                     final Rect newTaskBounds = mDragPositioningCallback.onDragPositioningEnd(
                             e.getRawX(dragPointerIdx), e.getRawY(dragPointerIdx));
+                    // Tasks bounds haven't actually been updated (only its leash), so pass to
+                    // DesktopTasksController to allow secondary transformations (i.e. snap resizing
+                    // or transforming to fullscreen) before setting new task bounds.
                     mDesktopTasksController.onDragPositioningEnd(taskInfo, position,
                             new PointF(e.getRawX(dragPointerIdx), e.getRawY(dragPointerIdx)),
                             newTaskBounds, decoration.calculateValidDragArea());
@@ -1188,13 +1192,13 @@
 
         final DragPositioningCallback dragPositioningCallback;
         if (!DesktopModeStatus.isVeiledResizeEnabled()) {
-            dragPositioningCallback =  new FluidResizeTaskPositioner(
+            dragPositioningCallback = new FluidResizeTaskPositioner(
                     mTaskOrganizer, mTransitions, windowDecoration, mDisplayController,
                     mDragStartListener, mTransactionFactory);
             windowDecoration.setTaskDragResizer(
                     (FluidResizeTaskPositioner) dragPositioningCallback);
         } else {
-            dragPositioningCallback =  new VeiledResizeTaskPositioner(
+            dragPositioningCallback = new VeiledResizeTaskPositioner(
                     mTaskOrganizer, windowDecoration, mDisplayController,
                     mDragStartListener, mTransitions, mInteractionJankMonitor);
             windowDecoration.setTaskDragResizer(
@@ -1267,7 +1271,7 @@
         pw.println(innerPrefix + "mWindowDecorByTaskId=" + mWindowDecorByTaskId);
     }
 
-    private class DeskopModeOnTaskResizeAnimationListener
+    private class DesktopModeOnTaskResizeAnimationListener
             implements OnTaskResizeAnimationListener {
         @Override
         public void onAnimationStart(int taskId, Transaction t, Rect bounds) {
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositioner.java b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositioner.java
index 76096b0..e2d42b2 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositioner.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositioner.java
@@ -152,11 +152,8 @@
             }
             mDragResizeEndTransition = mTransitions.startTransition(TRANSIT_CHANGE, wct, this);
         } else if (mCtrlType == CTRL_TYPE_UNDEFINED) {
-            final WindowContainerTransaction wct = new WindowContainerTransaction();
             DragPositioningCallbackUtility.updateTaskBounds(mRepositionTaskBounds,
                     mTaskBoundsAtDragStart, mRepositionStartPoint, x, y);
-            wct.setBounds(mWindowDecoration.mTaskInfo.token, mRepositionTaskBounds);
-            mTransitions.startTransition(TRANSIT_CHANGE, wct, this);
         }
 
         mTaskBoundsAtDragStart.setEmpty();
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositioner.java b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositioner.java
index b5b476d..237492e 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositioner.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositioner.java
@@ -163,14 +163,7 @@
         } else {
             DragPositioningCallbackUtility.updateTaskBounds(mRepositionTaskBounds,
                     mTaskBoundsAtDragStart, mRepositionStartPoint, x, y);
-            if (!mTaskBoundsAtDragStart.equals(mRepositionTaskBounds)) {
-                final WindowContainerTransaction wct = new WindowContainerTransaction();
-                wct.setBounds(mDesktopWindowDecoration.mTaskInfo.token, mRepositionTaskBounds);
-                mTransitions.startTransition(TRANSIT_CHANGE, wct, this);
-            } else {
-                // Drag-move ended where it originally started, no need to update WM.
                 mInteractionJankMonitor.end(CUJ_DESKTOP_MODE_DRAG_WINDOW);
-            }
         }
 
         mCtrlType = CTRL_TYPE_UNDEFINED;
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
index 566735d..e6c72cd 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
@@ -85,6 +85,7 @@
 import com.android.wm.shell.common.SyncTransactionQueue
 import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.UNKNOWN
 import com.android.wm.shell.common.split.SplitScreenConstants
+import com.android.wm.shell.desktopmode.DesktopTasksController.SnapPosition
 import com.android.wm.shell.desktopmode.DesktopTestHelpers.Companion.createFreeformTask
 import com.android.wm.shell.desktopmode.DesktopTestHelpers.Companion.createFullscreenTask
 import com.android.wm.shell.desktopmode.DesktopTestHelpers.Companion.createHomeTask
@@ -128,10 +129,10 @@
 import org.mockito.Mockito.mock
 import org.mockito.Mockito.spy
 import org.mockito.Mockito.verify
-import org.mockito.Mockito.`when` as whenever
 import org.mockito.kotlin.anyOrNull
 import org.mockito.kotlin.atLeastOnce
 import org.mockito.kotlin.capture
+import org.mockito.kotlin.whenever
 import org.mockito.quality.Strictness
 
 /**
@@ -2376,7 +2377,7 @@
         task,
         Point(100, -100), /* position */
         PointF(200f, -200f), /* inputCoordinate */
-        Rect(100, -100, 500, 1000), /* taskBounds */
+        Rect(100, -100, 500, 1000), /* currentDragBounds */
         Rect(0, 50, 2000, 2000) /* validDragArea */)
     val rectAfterEnd = Rect(100, 50, 500, 1150)
     verify(transitions)
@@ -2391,6 +2392,40 @@
   }
 
   @Test
+  fun onDesktopDragEnd_noIndicator_updatesTaskBounds() {
+    val task = setUpFreeformTask()
+    val spyController = spy(controller)
+    val mockSurface = mock(SurfaceControl::class.java)
+    val mockDisplayLayout = mock(DisplayLayout::class.java)
+    whenever(displayController.getDisplayLayout(task.displayId)).thenReturn(mockDisplayLayout)
+    whenever(mockDisplayLayout.stableInsets()).thenReturn(Rect(0, 100, 2000, 2000))
+    spyController.onDragPositioningMove(task, mockSurface, 200f, Rect(100, 200, 500, 1000))
+
+    val currentDragBounds = Rect(100, 200, 500, 1000)
+    whenever(spyController.getVisualIndicator()).thenReturn(desktopModeVisualIndicator)
+    whenever(desktopModeVisualIndicator.updateIndicatorType(anyOrNull(), anyOrNull()))
+      .thenReturn(DesktopModeVisualIndicator.IndicatorType.NO_INDICATOR)
+
+    spyController.onDragPositioningEnd(
+      task,
+      Point(100, 200), /* position */
+      PointF(200f, 300f), /* inputCoordinate */
+      currentDragBounds, /* currentDragBounds */
+      Rect(0, 50, 2000, 2000) /* validDragArea */)
+
+
+    verify(transitions)
+      .startTransition(
+        eq(TRANSIT_CHANGE),
+        Mockito.argThat { wct ->
+          return@argThat wct.changes.any { (token, change) ->
+            change.configuration.windowConfiguration.bounds == currentDragBounds
+          }
+        },
+        eq(null))
+  }
+
+  @Test
   fun enterSplit_freeformTaskIsMovedToSplit() {
     val task1 = setUpFreeformTask()
     val task2 = setUpFreeformTask()
@@ -2475,6 +2510,28 @@
   }
 
   @Test
+  fun getSnapBounds_calculatesBoundsForResizable() {
+    val bounds = Rect(100, 100, 300, 300)
+    val task = setUpFreeformTask(DEFAULT_DISPLAY, bounds).apply {
+      topActivityInfo = ActivityInfo().apply {
+        screenOrientation = SCREEN_ORIENTATION_LANDSCAPE
+        configuration.windowConfiguration.appBounds = bounds
+      }
+      isResizeable = true
+    }
+
+    val currentDragBounds = Rect(0, 100, 200, 300)
+    val expectedBounds = Rect(
+      STABLE_BOUNDS.left, STABLE_BOUNDS.top, STABLE_BOUNDS.right / 2, STABLE_BOUNDS.bottom
+    )
+
+    controller.snapToHalfScreen(task, currentDragBounds, SnapPosition.LEFT)
+    // Assert bounds set to stable bounds
+    val wct = getLatestToggleResizeDesktopTaskWct(currentDragBounds)
+    assertThat(findBoundsChange(wct, task)).isEqualTo(expectedBounds)
+  }
+
+  @Test
   fun toggleBounds_togglesToCalculatedBoundsForNonResizable() {
     val bounds = Rect(0, 0, 200, 100)
     val task = setUpFreeformTask(DEFAULT_DISPLAY, bounds).apply {
@@ -2720,11 +2777,14 @@
     return arg.value
   }
 
-  private fun getLatestToggleResizeDesktopTaskWct(): WindowContainerTransaction {
+  private fun getLatestToggleResizeDesktopTaskWct(
+    currentBounds: Rect? = null
+  ): WindowContainerTransaction {
     val arg: ArgumentCaptor<WindowContainerTransaction> =
         ArgumentCaptor.forClass(WindowContainerTransaction::class.java)
     if (ENABLE_SHELL_TRANSITIONS) {
-      verify(toggleResizeDesktopTaskTransitionHandler, atLeastOnce()).startTransition(capture(arg))
+      verify(toggleResizeDesktopTaskTransitionHandler, atLeastOnce())
+        .startTransition(capture(arg), eq(currentBounds))
     } else {
       verify(shellTaskOrganizer).applyTransaction(capture(arg))
     }
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModelTests.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModelTests.kt
index 5e6d01b..61c7080 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModelTests.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModelTests.kt
@@ -561,9 +561,11 @@
             onLeftSnapClickListenerCaptor = onLeftSnapClickListenerCaptor
         )
 
+        val currentBounds = decor.mTaskInfo.configuration.windowConfiguration.bounds
         onLeftSnapClickListenerCaptor.value.invoke()
 
-        verify(mockDesktopTasksController).snapToHalfScreen(decor.mTaskInfo, SnapPosition.LEFT)
+        verify(mockDesktopTasksController)
+            .snapToHalfScreen(decor.mTaskInfo, currentBounds, SnapPosition.LEFT)
     }
 
     @Test
@@ -590,9 +592,11 @@
             onRightSnapClickListenerCaptor = onRightSnapClickListenerCaptor
         )
 
+        val currentBounds = decor.mTaskInfo.configuration.windowConfiguration.bounds
         onRightSnapClickListenerCaptor.value.invoke()
 
-        verify(mockDesktopTasksController).snapToHalfScreen(decor.mTaskInfo, SnapPosition.RIGHT)
+        verify(mockDesktopTasksController)
+            .snapToHalfScreen(decor.mTaskInfo, currentBounds, SnapPosition.RIGHT)
     }
 
     @Test
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositionerTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositionerTest.kt
index 6667504..2ce59ff 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositionerTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/FluidResizeTaskPositionerTest.kt
@@ -35,7 +35,6 @@
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.mockito.ArgumentMatchers.anyInt
-import org.mockito.ArgumentMatchers.eq
 import org.mockito.Mock
 import org.mockito.Mockito
 import org.mockito.Mockito.any
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositionerTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositionerTest.kt
index 943c313..08a6e1b 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositionerTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/windowdecor/VeiledResizeTaskPositionerTest.kt
@@ -200,7 +200,7 @@
         verify(mockTransaction).setPosition(any(), eq(rectAfterMove.left.toFloat()),
                 eq(rectAfterMove.top.toFloat()))
 
-        taskPositioner.onDragPositioningEnd(
+        val endBounds = taskPositioner.onDragPositioningEnd(
             STARTING_BOUNDS.left.toFloat() + 70,
             STARTING_BOUNDS.top.toFloat() + 20
         )
@@ -212,12 +212,7 @@
 
         verify(mockDesktopWindowDecoration, never()).showResizeVeil(any())
         verify(mockDesktopWindowDecoration, never()).hideResizeVeil()
-        verify(mockTransitions).startTransition(eq(TRANSIT_CHANGE), argThat { wct ->
-            return@argThat wct.changes.any { (token, change) ->
-                token == taskBinder &&
-                        (change.windowSetMask and WindowConfiguration.WINDOW_CONFIG_BOUNDS) != 0 &&
-                        change.configuration.windowConfiguration.bounds == rectAfterEnd }},
-                eq(taskPositioner))
+        Assert.assertEquals(rectAfterEnd, endBounds)
     }
 
     @Test
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index 5c4cdb2..687c728 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -881,6 +881,11 @@
     <!-- UI debug setting: show physical key presses summary [CHAR LIMIT=150] -->
     <string name="show_key_presses_summary">Show visual feedback for physical key presses</string>
 
+    <!-- UI debug setting: Title text for a debug setting that enables a visualization of touchpad input in a window on the screen  [CHAR LIMIT=50] -->
+    <string name="touchpad_visualizer">Show touchpad input</string>
+    <!-- UI debug setting: Summary text for a debug setting that enables a visualization of touchpad input in a window on the screen [CHAR LIMIT=150] -->
+    <string name="touchpad_visualizer_summary">Screen overlay displaying touchpad input data and recognized gestures</string>
+
     <!-- UI debug setting: show where surface updates happen? [CHAR LIMIT=25] -->
     <string name="show_screen_updates">Show surface updates</string>
     <!-- UI debug setting: show surface updates summary [CHAR LIMIT=50] -->
diff --git a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
index 7b927d7..2823277 100644
--- a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
+++ b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
@@ -200,6 +200,7 @@
         VALIDATORS.put(System.POINTER_LOCATION, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.SHOW_TOUCHES, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.SHOW_KEY_PRESSES, BOOLEAN_VALIDATOR);
+        VALIDATORS.put(System.TOUCHPAD_VISUALIZER, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.SHOW_ROTARY_INPUT, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.WINDOW_ORIENTATION_LISTENER_LOG, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.LOCKSCREEN_SOUNDS_ENABLED, BOOLEAN_VALIDATOR);
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index cd37ad1..3c24f5c 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -2831,6 +2831,9 @@
                 Settings.System.SHOW_KEY_PRESSES,
                 SystemSettingsProto.DevOptions.SHOW_KEY_PRESSES);
         dumpSetting(s, p,
+                Settings.System.TOUCHPAD_VISUALIZER,
+                SystemSettingsProto.DevOptions.TOUCHPAD_VISUALIZER);
+        dumpSetting(s, p,
                 Settings.System.POINTER_LOCATION,
                 SystemSettingsProto.DevOptions.POINTER_LOCATION);
         dumpSetting(s, p,
diff --git a/packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java b/packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java
index 411decd..8c96484 100644
--- a/packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java
+++ b/packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java
@@ -918,6 +918,7 @@
                         Settings.System.SHOW_GTALK_SERVICE_STATUS, // candidate for backup?
                         Settings.System.SHOW_TOUCHES,
                         Settings.System.SHOW_KEY_PRESSES,
+                        Settings.System.TOUCHPAD_VISUALIZER,
                         Settings.System.SHOW_ROTARY_INPUT,
                         Settings.System.SIP_ADDRESS_ONLY, // value, not a setting
                         Settings.System.SIP_ALWAYS, // value, not a setting
diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index cfd8f635..c2e8c37 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -576,6 +576,7 @@
         "TraceurCommon",
         "Traceur-res",
         "//frameworks/libs/systemui:motion_tool_lib",
+        "//frameworks/libs/systemui:contextualeducationlib",
         "notification_flags_lib",
         "PlatformComposeCore",
         "PlatformComposeSceneTransitionLayout",
@@ -736,6 +737,7 @@
         "WindowManager-Shell",
         "LowLightDreamLib",
         "//frameworks/libs/systemui:motion_tool_lib",
+        "//frameworks/libs/systemui:contextualeducationlib",
         "androidx.core_core-animation-testing",
         "androidx.compose.ui_ui",
         "flag-junit",
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/data/repository/ContextualEducationRepositoryTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/data/repository/ContextualEducationRepositoryTest.kt
index 3a4b14b..331db52 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/data/repository/ContextualEducationRepositoryTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/data/repository/ContextualEducationRepositoryTest.kt
@@ -22,10 +22,10 @@
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.SysuiTestableContext
 import com.android.systemui.coroutines.collectLastValue
+import com.android.systemui.contextualeducation.GestureType.BACK
 import com.android.systemui.kosmos.Kosmos
 import com.android.systemui.kosmos.testDispatcher
 import com.android.systemui.kosmos.testScope
-import com.android.systemui.shared.education.GestureType.BACK_GESTURE
 import com.google.common.truth.Truth.assertThat
 import java.io.File
 import java.time.Clock
@@ -70,8 +70,8 @@
     fun changeRetrievedValueForNewUser() =
         testScope.runTest {
             // Update data for old user.
-            underTest.incrementSignalCount(BACK_GESTURE)
-            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK_GESTURE))
+            underTest.incrementSignalCount(BACK)
+            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK))
             assertThat(model?.signalCount).isEqualTo(1)
 
             // User is changed.
@@ -83,17 +83,17 @@
     @Test
     fun incrementSignalCount() =
         testScope.runTest {
-            underTest.incrementSignalCount(BACK_GESTURE)
-            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK_GESTURE))
+            underTest.incrementSignalCount(BACK)
+            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK))
             assertThat(model?.signalCount).isEqualTo(1)
         }
 
     @Test
     fun dataAddedOnUpdateShortcutTriggerTime() =
         testScope.runTest {
-            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK_GESTURE))
+            val model by collectLastValue(underTest.readGestureEduModelFlow(BACK))
             assertThat(model?.lastShortcutTriggeredTime).isNull()
-            underTest.updateShortcutTriggerTime(BACK_GESTURE)
+            underTest.updateShortcutTriggerTime(BACK)
             assertThat(model?.lastShortcutTriggeredTime).isEqualTo(clock.instant())
         }
 
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractorTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractorTest.kt
index 01dbc6b..ae3302c 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractorTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractorTest.kt
@@ -20,10 +20,10 @@
 import androidx.test.filters.SmallTest
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.coroutines.collectLastValue
+import com.android.systemui.contextualeducation.GestureType
+import com.android.systemui.contextualeducation.GestureType.BACK
 import com.android.systemui.education.data.repository.contextualEducationRepository
 import com.android.systemui.kosmos.testScope
-import com.android.systemui.shared.education.GestureType
-import com.android.systemui.shared.education.GestureType.BACK_GESTURE
 import com.android.systemui.testKosmos
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.test.runTest
@@ -47,15 +47,15 @@
     @Test
     fun newEducationInfoOnMaxSignalCountReached() =
         testScope.runTest {
-            tryTriggeringEducation(BACK_GESTURE)
+            tryTriggeringEducation(BACK)
             val model by collectLastValue(underTest.educationTriggered)
-            assertThat(model?.gestureType).isEqualTo(BACK_GESTURE)
+            assertThat(model?.gestureType).isEqualTo(BACK)
         }
 
     @Test
     fun noEducationInfoBeforeMaxSignalCountReached() =
         testScope.runTest {
-            repository.incrementSignalCount(BACK_GESTURE)
+            repository.incrementSignalCount(BACK)
             val model by collectLastValue(underTest.educationTriggered)
             assertThat(model).isNull()
         }
@@ -64,8 +64,8 @@
     fun noEducationInfoWhenShortcutTriggeredPreviously() =
         testScope.runTest {
             val model by collectLastValue(underTest.educationTriggered)
-            repository.updateShortcutTriggerTime(BACK_GESTURE)
-            tryTriggeringEducation(BACK_GESTURE)
+            repository.updateShortcutTriggerTime(BACK)
+            tryTriggeringEducation(BACK)
             assertThat(model).isNull()
         }
 
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadStatsInteractorTest.kt b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadStatsInteractorTest.kt
index ee51e37..cd0c58f 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadStatsInteractorTest.kt
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadStatsInteractorTest.kt
@@ -20,10 +20,10 @@
 import androidx.test.filters.SmallTest
 import com.android.systemui.SysuiTestCase
 import com.android.systemui.coroutines.collectLastValue
+import com.android.systemui.contextualeducation.GestureType.BACK
 import com.android.systemui.education.data.repository.contextualEducationRepository
 import com.android.systemui.education.data.repository.fakeEduClock
 import com.android.systemui.kosmos.testScope
-import com.android.systemui.shared.education.GestureType.BACK_GESTURE
 import com.android.systemui.testKosmos
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.test.runTest
@@ -41,11 +41,9 @@
     fun dataUpdatedOnIncrementSignalCount() =
         testScope.runTest {
             val model by
-                collectLastValue(
-                    kosmos.contextualEducationRepository.readGestureEduModelFlow(BACK_GESTURE)
-                )
+                collectLastValue(kosmos.contextualEducationRepository.readGestureEduModelFlow(BACK))
             val originalValue = model!!.signalCount
-            underTest.incrementSignalCount(BACK_GESTURE)
+            underTest.incrementSignalCount(BACK)
             assertThat(model?.signalCount).isEqualTo(originalValue + 1)
         }
 
@@ -53,11 +51,9 @@
     fun dataAddedOnUpdateShortcutTriggerTime() =
         testScope.runTest {
             val model by
-                collectLastValue(
-                    kosmos.contextualEducationRepository.readGestureEduModelFlow(BACK_GESTURE)
-                )
+                collectLastValue(kosmos.contextualEducationRepository.readGestureEduModelFlow(BACK))
             assertThat(model?.lastShortcutTriggeredTime).isNull()
-            underTest.updateShortcutTriggerTime(BACK_GESTURE)
+            underTest.updateShortcutTriggerTime(BACK)
             assertThat(model?.lastShortcutTriggeredTime).isEqualTo(kosmos.fakeEduClock.instant())
         }
 }
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/education/GestureType.kt b/packages/SystemUI/shared/src/com/android/systemui/shared/education/GestureType.kt
deleted file mode 100644
index 9a5c77a..0000000
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/education/GestureType.kt
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright 2024 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.shared.education
-
-enum class GestureType {
-    BACK_GESTURE,
-}
diff --git a/packages/SystemUI/src/com/android/systemui/education/dagger/ContextualEducationModule.kt b/packages/SystemUI/src/com/android/systemui/education/dagger/ContextualEducationModule.kt
index b8019ab..532b123 100644
--- a/packages/SystemUI/src/com/android/systemui/education/dagger/ContextualEducationModule.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/dagger/ContextualEducationModule.kt
@@ -19,13 +19,13 @@
 import com.android.systemui.CoreStartable
 import com.android.systemui.Flags
 import com.android.systemui.dagger.qualifiers.Background
+import com.android.systemui.contextualeducation.GestureType
 import com.android.systemui.education.data.repository.ContextualEducationRepository
 import com.android.systemui.education.data.repository.ContextualEducationRepositoryImpl
 import com.android.systemui.education.domain.interactor.ContextualEducationInteractor
 import com.android.systemui.education.domain.interactor.KeyboardTouchpadEduInteractor
 import com.android.systemui.education.domain.interactor.KeyboardTouchpadEduStatsInteractor
 import com.android.systemui.education.domain.interactor.KeyboardTouchpadEduStatsInteractorImpl
-import com.android.systemui.shared.education.GestureType
 import dagger.Binds
 import dagger.Lazy
 import dagger.Module
diff --git a/packages/SystemUI/src/com/android/systemui/education/data/repository/ContextualEducationRepository.kt b/packages/SystemUI/src/com/android/systemui/education/data/repository/ContextualEducationRepository.kt
index 248b7a5..52ccba4 100644
--- a/packages/SystemUI/src/com/android/systemui/education/data/repository/ContextualEducationRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/data/repository/ContextualEducationRepository.kt
@@ -17,9 +17,9 @@
 package com.android.systemui.education.data.repository
 
 import com.android.systemui.dagger.SysUISingleton
+import com.android.systemui.contextualeducation.GestureType
 import com.android.systemui.education.dagger.ContextualEducationModule.EduClock
 import com.android.systemui.education.data.model.GestureEduModel
-import com.android.systemui.shared.education.GestureType
 import java.time.Clock
 import javax.inject.Inject
 import kotlinx.coroutines.flow.Flow
diff --git a/packages/SystemUI/src/com/android/systemui/education/data/repository/UserContextualEducationRepository.kt b/packages/SystemUI/src/com/android/systemui/education/data/repository/UserContextualEducationRepository.kt
index b7fc773..4b37b29 100644
--- a/packages/SystemUI/src/com/android/systemui/education/data/repository/UserContextualEducationRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/data/repository/UserContextualEducationRepository.kt
@@ -27,9 +27,9 @@
 import androidx.datastore.preferences.preferencesDataStoreFile
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Application
+import com.android.systemui.contextualeducation.GestureType
 import com.android.systemui.education.dagger.ContextualEducationModule.EduDataStoreScope
 import com.android.systemui.education.data.model.GestureEduModel
-import com.android.systemui.shared.education.GestureType
 import java.time.Instant
 import javax.inject.Inject
 import javax.inject.Provider
diff --git a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/ContextualEducationInteractor.kt b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/ContextualEducationInteractor.kt
index 3036d97..bee289d 100644
--- a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/ContextualEducationInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/ContextualEducationInteractor.kt
@@ -19,9 +19,10 @@
 import com.android.systemui.CoreStartable
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Background
+import com.android.systemui.contextualeducation.GestureType
+import com.android.systemui.contextualeducation.GestureType.BACK
 import com.android.systemui.education.data.model.GestureEduModel
 import com.android.systemui.education.data.repository.ContextualEducationRepository
-import com.android.systemui.shared.education.GestureType
 import com.android.systemui.user.domain.interactor.SelectedUserInteractor
 import javax.inject.Inject
 import kotlinx.coroutines.CoroutineDispatcher
@@ -46,7 +47,7 @@
     private val repository: ContextualEducationRepository,
 ) : CoreStartable {
 
-    val backGestureModelFlow = readEduModelsOnSignalCountChanged(GestureType.BACK_GESTURE)
+    val backGestureModelFlow = readEduModelsOnSignalCountChanged(BACK)
 
     override fun start() {
         backgroundScope.launch {
diff --git a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractor.kt b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractor.kt
index 247abf1..9016c73 100644
--- a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduInteractor.kt
@@ -19,10 +19,10 @@
 import com.android.systemui.CoreStartable
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Background
+import com.android.systemui.contextualeducation.GestureType.BACK
 import com.android.systemui.education.data.model.GestureEduModel
 import com.android.systemui.education.shared.model.EducationInfo
 import com.android.systemui.education.shared.model.EducationUiType
-import com.android.systemui.shared.education.GestureType.BACK_GESTURE
 import javax.inject.Inject
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -50,7 +50,7 @@
         backgroundScope.launch {
             contextualEducationInteractor.backGestureModelFlow
                 .mapNotNull { getEduType(it) }
-                .collect { _educationTriggered.value = EducationInfo(BACK_GESTURE, it) }
+                .collect { _educationTriggered.value = EducationInfo(BACK, it) }
         }
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduStatsInteractor.kt b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduStatsInteractor.kt
index 643e571..3223433 100644
--- a/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduStatsInteractor.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/domain/interactor/KeyboardTouchpadEduStatsInteractor.kt
@@ -18,7 +18,7 @@
 
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Background
-import com.android.systemui.shared.education.GestureType
+import com.android.systemui.contextualeducation.GestureType
 import javax.inject.Inject
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
diff --git a/packages/SystemUI/src/com/android/systemui/education/shared/model/EducationInfo.kt b/packages/SystemUI/src/com/android/systemui/education/shared/model/EducationInfo.kt
index 85f4012..d92fb9b 100644
--- a/packages/SystemUI/src/com/android/systemui/education/shared/model/EducationInfo.kt
+++ b/packages/SystemUI/src/com/android/systemui/education/shared/model/EducationInfo.kt
@@ -16,7 +16,7 @@
 
 package com.android.systemui.education.shared.model
 
-import com.android.systemui.shared.education.GestureType
+import com.android.systemui.contextualeducation.GestureType
 
 /**
  * Model for education triggered. [gestureType] indicates what gesture it is trying to educate about
diff --git a/packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java b/packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java
index 9eca34f..0fe4d36 100644
--- a/packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java
@@ -74,6 +74,7 @@
 import com.android.internal.config.sysui.SystemUiDeviceConfigFlags;
 import com.android.internal.policy.GestureNavigationSettingsObserver;
 import com.android.systemui.dagger.qualifiers.Background;
+import com.android.systemui.contextualeducation.GestureType;
 import com.android.systemui.model.SysUiState;
 import com.android.systemui.navigationbar.NavigationModeController;
 import com.android.systemui.navigationbar.gestural.domain.GestureInteractor;
@@ -1057,6 +1058,8 @@
                 mEdgeBackPlugin.setIsLeftPanel(mIsOnLeftEdge);
                 mEdgeBackPlugin.onMotionEvent(ev);
                 dispatchToBackAnimation(ev);
+                mOverviewProxyService.updateContextualEduStats(mIsTrackpadThreeFingerSwipe,
+                        GestureType.BACK);
             }
             if (mLogGesture || mIsTrackpadThreeFingerSwipe) {
                 mDownPoint.set(ev.getX(), ev.getY());
diff --git a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
index 371707d..15366d5 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
@@ -89,6 +89,8 @@
 import com.android.systemui.dagger.SysUISingleton;
 import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dump.DumpManager;
+import com.android.systemui.contextualeducation.GestureType;
+import com.android.systemui.education.domain.interactor.KeyboardTouchpadEduStatsInteractor;
 import com.android.systemui.keyguard.KeyguardUnlockAnimationController;
 import com.android.systemui.keyguard.KeyguardWmStateRefactor;
 import com.android.systemui.keyguard.WakefulnessLifecycle;
@@ -160,6 +162,8 @@
     private final NotificationShadeWindowController mStatusBarWinController;
     private final Provider<SceneInteractor> mSceneInteractor;
 
+    private final KeyboardTouchpadEduStatsInteractor mKeyboardTouchpadEduStatsInteractor;
+
     private final Runnable mConnectionRunnable = () ->
             internalConnectToCurrentUser("runnable: startConnectionToCurrentUser");
     private final ComponentName mRecentsComponentName;
@@ -661,7 +665,8 @@
             AssistUtils assistUtils,
             DumpManager dumpManager,
             Optional<UnfoldTransitionProgressForwarder> unfoldTransitionProgressForwarder,
-            BroadcastDispatcher broadcastDispatcher
+            BroadcastDispatcher broadcastDispatcher,
+            KeyboardTouchpadEduStatsInteractor keyboardTouchpadEduStatsInteractor
     ) {
         // b/241601880: This component should only be running for primary users or
         // secondaryUsers when visibleBackgroundUsers are supported.
@@ -698,6 +703,7 @@
         mDisplayTracker = displayTracker;
         mUnfoldTransitionProgressForwarder = unfoldTransitionProgressForwarder;
         mBroadcastDispatcher = broadcastDispatcher;
+        mKeyboardTouchpadEduStatsInteractor = keyboardTouchpadEduStatsInteractor;
 
         if (!KeyguardWmStateRefactor.isEnabled()) {
             mSysuiUnlockAnimationController = sysuiUnlockAnimationController;
@@ -929,6 +935,19 @@
         return isEnabled() && !QuickStepContract.isLegacyMode(mNavBarMode);
     }
 
+    /**
+     * Updates contextual education stats when a gesture is triggered
+     * @param isTrackpadGesture indicates if the gesture is triggered by trackpad
+     * @param gestureType type of gesture triggered
+     */
+    public void updateContextualEduStats(boolean isTrackpadGesture, GestureType gestureType) {
+        if (isTrackpadGesture) {
+            mKeyboardTouchpadEduStatsInteractor.updateShortcutTriggerTime(gestureType);
+        } else {
+            mKeyboardTouchpadEduStatsInteractor.incrementSignalCount(gestureType);
+        }
+    }
+
     public boolean isEnabled() {
         return mIsEnabled;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/BackGestureMonitor.kt b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/BackGestureMonitor.kt
index ed3355e..e3666ce 100644
--- a/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/BackGestureMonitor.kt
+++ b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/BackGestureMonitor.kt
@@ -16,38 +16,26 @@
 
 package com.android.systemui.touchpad.tutorial.ui.gesture
 
-import android.view.MotionEvent
-import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.FINISHED
-import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.IN_PROGRESS
-import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.NOT_STARTED
 import kotlin.math.abs
 
+/** Monitors for touchpad back gesture, that is three fingers swiping left or right */
 class BackGestureMonitor(
     override val gestureDistanceThresholdPx: Int,
     override val gestureStateChangedCallback: (GestureState) -> Unit
-) : TouchpadGestureMonitor {
-
-    private var xStart = 0f
-
-    override fun processTouchpadEvent(event: MotionEvent) {
-        val action = event.actionMasked
-        when (action) {
-            MotionEvent.ACTION_DOWN -> {
-                if (isThreeFingerTouchpadSwipe(event)) {
-                    xStart = event.x
-                    gestureStateChangedCallback(IN_PROGRESS)
+) :
+    TouchpadGestureMonitor by ThreeFingerGestureMonitor(
+        gestureDistanceThresholdPx = gestureDistanceThresholdPx,
+        gestureStateChangedCallback = gestureStateChangedCallback,
+        donePredicate =
+            object : GestureDonePredicate {
+                override fun wasGestureDone(
+                    startX: Float,
+                    startY: Float,
+                    endX: Float,
+                    endY: Float
+                ): Boolean {
+                    val distance = abs(endX - startX)
+                    return distance >= gestureDistanceThresholdPx
                 }
             }
-            MotionEvent.ACTION_UP -> {
-                if (isThreeFingerTouchpadSwipe(event)) {
-                    val distance = abs(event.x - xStart)
-                    if (distance >= gestureDistanceThresholdPx) {
-                        gestureStateChangedCallback(FINISHED)
-                    } else {
-                        gestureStateChangedCallback(NOT_STARTED)
-                    }
-                }
-            }
-        }
-    }
-}
+    )
diff --git a/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitor.kt b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitor.kt
new file mode 100644
index 0000000..a410f99
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitor.kt
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 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.touchpad.tutorial.ui.gesture
+
+/** Monitors for touchpad home gesture, that is three fingers swiping up */
+class HomeGestureMonitor(
+    override val gestureDistanceThresholdPx: Int,
+    override val gestureStateChangedCallback: (GestureState) -> Unit
+) :
+    TouchpadGestureMonitor by ThreeFingerGestureMonitor(
+        gestureDistanceThresholdPx = gestureDistanceThresholdPx,
+        gestureStateChangedCallback = gestureStateChangedCallback,
+        donePredicate =
+            object : GestureDonePredicate {
+                override fun wasGestureDone(
+                    startX: Float,
+                    startY: Float,
+                    endX: Float,
+                    endY: Float
+                ): Boolean {
+                    val distance = startY - endY
+                    return distance >= gestureDistanceThresholdPx
+                }
+            }
+    )
diff --git a/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/ThreeFingerGestureMonitor.kt b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/ThreeFingerGestureMonitor.kt
new file mode 100644
index 0000000..377977c
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/touchpad/tutorial/ui/gesture/ThreeFingerGestureMonitor.kt
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2024 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.touchpad.tutorial.ui.gesture
+
+import android.view.MotionEvent
+
+interface GestureDonePredicate {
+    /**
+     * Should return if gesture was finished. The only events this predicate receives are ACTION_UP.
+     */
+    fun wasGestureDone(startX: Float, startY: Float, endX: Float, endY: Float): Boolean
+}
+
+/** Common implementation for all three-finger gesture monitors */
+class ThreeFingerGestureMonitor(
+    override val gestureDistanceThresholdPx: Int,
+    override val gestureStateChangedCallback: (GestureState) -> Unit,
+    private val donePredicate: GestureDonePredicate
+) : TouchpadGestureMonitor {
+
+    private var xStart = 0f
+    private var yStart = 0f
+
+    override fun processTouchpadEvent(event: MotionEvent) {
+        val action = event.actionMasked
+        when (action) {
+            MotionEvent.ACTION_DOWN -> {
+                if (isThreeFingerTouchpadSwipe(event)) {
+                    xStart = event.x
+                    yStart = event.y
+                    gestureStateChangedCallback(GestureState.IN_PROGRESS)
+                }
+            }
+            MotionEvent.ACTION_UP -> {
+                if (isThreeFingerTouchpadSwipe(event)) {
+                    if (donePredicate.wasGestureDone(xStart, yStart, event.x, event.y)) {
+                        gestureStateChangedCallback(GestureState.FINISHED)
+                    } else {
+                        gestureStateChangedCallback(GestureState.NOT_STARTED)
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/recents/OverviewProxyServiceTest.kt b/packages/SystemUI/tests/src/com/android/systemui/recents/OverviewProxyServiceTest.kt
index e1c3911..b02cccc 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/recents/OverviewProxyServiceTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/recents/OverviewProxyServiceTest.kt
@@ -35,6 +35,7 @@
 import com.android.systemui.broadcast.BroadcastDispatcher
 import com.android.systemui.dagger.qualifiers.Main
 import com.android.systemui.dump.DumpManager
+import com.android.systemui.education.domain.interactor.KeyboardTouchpadEduStatsInteractor
 import com.android.systemui.keyguard.KeyguardUnlockAnimationController
 import com.android.systemui.keyguard.WakefulnessLifecycle
 import com.android.systemui.keyguard.ui.view.InWindowLauncherUnlockAnimationManager
@@ -121,6 +122,9 @@
         Optional<UnfoldTransitionProgressForwarder>
     @Mock private lateinit var broadcastDispatcher: BroadcastDispatcher
 
+    @Mock
+    private lateinit var keyboardTouchpadEduStatsInteractor: KeyboardTouchpadEduStatsInteractor
+
     @Before
     fun setUp() {
         MockitoAnnotations.initMocks(this)
@@ -289,7 +293,8 @@
             assistUtils,
             dumpManager,
             unfoldTransitionProgressForwarder,
-            broadcastDispatcher
+            broadcastDispatcher,
+            keyboardTouchpadEduStatsInteractor
         )
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitorTest.kt b/packages/SystemUI/tests/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitorTest.kt
new file mode 100644
index 0000000..6aefbe9
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/touchpad/tutorial/ui/gesture/HomeGestureMonitorTest.kt
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2024 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.touchpad.tutorial.ui.gesture
+
+import android.view.MotionEvent
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import com.android.systemui.SysuiTestCase
+import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.FINISHED
+import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.IN_PROGRESS
+import com.android.systemui.touchpad.tutorial.ui.gesture.GestureState.NOT_STARTED
+import com.android.systemui.touchpad.tutorial.ui.gesture.MultiFingerGesture.Companion.SWIPE_DISTANCE
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class HomeGestureMonitorTest : SysuiTestCase() {
+
+    private var gestureState = NOT_STARTED
+    private val gestureMonitor =
+        HomeGestureMonitor(
+            gestureDistanceThresholdPx = SWIPE_DISTANCE.toInt(),
+            gestureStateChangedCallback = { gestureState = it }
+        )
+
+    @Test
+    fun triggersGestureFinishedForThreeFingerGestureUp() {
+        assertStateAfterEvents(events = ThreeFingerGesture.swipeUp(), expectedState = FINISHED)
+    }
+
+    @Test
+    fun triggersGestureProgressForThreeFingerGestureStarted() {
+        assertStateAfterEvents(
+            events = ThreeFingerGesture.startEvents(x = 0f, y = 0f),
+            expectedState = IN_PROGRESS
+        )
+    }
+
+    @Test
+    fun doesntTriggerGestureFinished_onGestureDistanceTooShort() {
+        assertStateAfterEvents(
+            events = ThreeFingerGesture.swipeUp(distancePx = SWIPE_DISTANCE / 2),
+            expectedState = NOT_STARTED
+        )
+    }
+
+    @Test
+    fun doesntTriggerGestureFinished_onThreeFingersSwipeInOtherDirections() {
+        assertStateAfterEvents(events = ThreeFingerGesture.swipeDown(), expectedState = NOT_STARTED)
+        assertStateAfterEvents(events = ThreeFingerGesture.swipeLeft(), expectedState = NOT_STARTED)
+        assertStateAfterEvents(
+            events = ThreeFingerGesture.swipeRight(),
+            expectedState = NOT_STARTED
+        )
+    }
+
+    @Test
+    fun doesntTriggerGestureFinished_onTwoFingersSwipe() {
+        assertStateAfterEvents(events = TwoFingerGesture.swipeUp(), expectedState = NOT_STARTED)
+    }
+
+    @Test
+    fun doesntTriggerGestureFinished_onFourFingersSwipe() {
+        assertStateAfterEvents(events = FourFingerGesture.swipeUp(), expectedState = NOT_STARTED)
+    }
+
+    private fun assertStateAfterEvents(events: List<MotionEvent>, expectedState: GestureState) {
+        events.forEach { gestureMonitor.processTouchpadEvent(it) }
+        assertThat(gestureState).isEqualTo(expectedState)
+    }
+}
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/education/data/repository/FakeContextualEducationRepository.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/education/data/repository/FakeContextualEducationRepository.kt
index bade91a..3816e1b 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/education/data/repository/FakeContextualEducationRepository.kt
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/education/data/repository/FakeContextualEducationRepository.kt
@@ -16,8 +16,8 @@
 
 package com.android.systemui.education.data.repository
 
+import com.android.systemui.contextualeducation.GestureType
 import com.android.systemui.education.data.model.GestureEduModel
-import com.android.systemui.shared.education.GestureType
 import java.time.Clock
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
diff --git a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
index 4085ec9..fb2bf39 100644
--- a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
+++ b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
@@ -1612,7 +1612,8 @@
 
         int positionToLog = APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__NOT_LETTERBOXED_POSITION;
         if (isAppCompateStateChangedToLetterboxed(state)) {
-            positionToLog = activity.mLetterboxUiController.getLetterboxPositionForLogging();
+            positionToLog = activity.mAppCompatController.getAppCompatReachabilityOverrides()
+                    .getLetterboxPositionForLogging();
         }
         FrameworkStatsLog.write(FrameworkStatsLog.APP_COMPAT_STATE_CHANGED,
                 packageUid, state, positionToLog);
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index c8aa815..eea3ab8 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -8633,8 +8633,8 @@
     /**
      * Adjusts position of resolved bounds if they don't fill the parent using gravity
      * requested in the config or via an ADB command. For more context see {@link
-     * LetterboxUiController#getHorizontalPositionMultiplier(Configuration)} and
-     * {@link LetterboxUiController#getVerticalPositionMultiplier(Configuration)}
+     * AppCompatReachabilityOverrides#getHorizontalPositionMultiplier(Configuration)} and
+     * {@link AppCompatReachabilityOverrides#getVerticalPositionMultiplier(Configuration)}
      * <p>
      * Note that this is the final step that can change the resolved bounds. After this method
      * is called, the position of the bounds will be moved to app space as sandboxing if the
@@ -8663,11 +8663,13 @@
         } else {
             navBarInsets = Insets.NONE;
         }
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mAppCompatController.getAppCompatReachabilityOverrides();
         // Horizontal position
         int offsetX = 0;
         if (parentBounds.width() != screenResolvedBoundsWidth) {
             if (screenResolvedBoundsWidth <= parentAppBoundsWidth) {
-                float positionMultiplier = mLetterboxUiController.getHorizontalPositionMultiplier(
+                float positionMultiplier = reachabilityOverrides.getHorizontalPositionMultiplier(
                         newParentConfiguration);
                 // If in immersive mode, always align to right and overlap right insets (task bar)
                 // as they are transient and hidden. This removes awkward right spacing.
@@ -8688,7 +8690,7 @@
         int offsetY = 0;
         if (parentBoundsHeight != screenResolvedBoundsHeight) {
             if (screenResolvedBoundsHeight <= parentAppBoundsHeight) {
-                float positionMultiplier = mLetterboxUiController.getVerticalPositionMultiplier(
+                float positionMultiplier = reachabilityOverrides.getVerticalPositionMultiplier(
                         newParentConfiguration);
                 // If in immersive mode, always align to bottom and overlap bottom insets (nav bar,
                 // task bar) as they are transient and hidden. This removes awkward bottom spacing.
diff --git a/services/core/java/com/android/server/wm/AppCompatAspectRatioOverrides.java b/services/core/java/com/android/server/wm/AppCompatAspectRatioOverrides.java
index 25cb134..d2f3d1d 100644
--- a/services/core/java/com/android/server/wm/AppCompatAspectRatioOverrides.java
+++ b/services/core/java/com/android/server/wm/AppCompatAspectRatioOverrides.java
@@ -50,8 +50,6 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.wm.utils.OptPropFactory;
 
-import java.util.function.Function;
-
 /**
  * Encapsulates app compat configurations and overrides related to aspect ratio.
  */
@@ -76,20 +74,20 @@
     @NonNull
     private final OptPropFactory.OptProp mAllowOrientationOverrideOptProp;
     @NonNull
-    private final Function<Boolean, Boolean> mIsDisplayFullScreenAndInPostureProvider;
+    private final AppCompatDeviceStateQuery mAppCompatDeviceStateQuery;
     @NonNull
-    private final Function<Configuration, Float> mGetHorizontalPositionMultiplierProvider;
+    private final AppCompatReachabilityOverrides mAppCompatReachabilityOverrides;
 
     AppCompatAspectRatioOverrides(@NonNull ActivityRecord activityRecord,
             @NonNull AppCompatConfiguration appCompatConfiguration,
             @NonNull OptPropFactory optPropBuilder,
-            @NonNull Function<Boolean, Boolean> isDisplayFullScreenAndInPostureProvider,
-            @NonNull Function<Configuration, Float> getHorizontalPositionMultiplierProvider) {
+            @NonNull AppCompatDeviceStateQuery appCompatDeviceStateQuery,
+            @NonNull AppCompatReachabilityOverrides appCompatReachabilityOverrides) {
         mActivityRecord = activityRecord;
         mAppCompatConfiguration = appCompatConfiguration;
+        mAppCompatDeviceStateQuery = appCompatDeviceStateQuery;
         mUserAspectRatioState = new UserAspectRatioState();
-        mIsDisplayFullScreenAndInPostureProvider = isDisplayFullScreenAndInPostureProvider;
-        mGetHorizontalPositionMultiplierProvider = getHorizontalPositionMultiplierProvider;
+        mAppCompatReachabilityOverrides = appCompatReachabilityOverrides;
         mAllowMinAspectRatioOverrideOptProp = optPropBuilder.create(
                 PROPERTY_COMPAT_ALLOW_MIN_ASPECT_RATIO_OVERRIDE);
         mAllowUserAspectRatioOverrideOptProp = optPropBuilder.create(
@@ -245,12 +243,13 @@
     }
 
     private boolean shouldUseSplitScreenAspectRatio(@NonNull Configuration parentConfiguration) {
-        final boolean isBookMode = mIsDisplayFullScreenAndInPostureProvider
-                .apply(/* isTabletop */false);
-        final boolean isNotCenteredHorizontally = mGetHorizontalPositionMultiplierProvider.apply(
-                parentConfiguration) != LETTERBOX_POSITION_MULTIPLIER_CENTER;
-        final boolean isTabletopMode = mIsDisplayFullScreenAndInPostureProvider
-                .apply(/* isTabletop */ true);
+        final boolean isBookMode = mAppCompatDeviceStateQuery
+                .isDisplayFullScreenAndInPosture(/* isTabletop */false);
+        final boolean isNotCenteredHorizontally =
+                mAppCompatReachabilityOverrides.getHorizontalPositionMultiplier(parentConfiguration)
+                        != LETTERBOX_POSITION_MULTIPLIER_CENTER;
+        final boolean isTabletopMode = mAppCompatDeviceStateQuery
+                .isDisplayFullScreenAndInPosture(/* isTabletop */ true);
         final boolean isLandscape = isFixedOrientationLandscape(
                 mActivityRecord.getOverrideOrientation());
         final AppCompatCameraOverrides cameraOverrides =
diff --git a/services/core/java/com/android/server/wm/AppCompatController.java b/services/core/java/com/android/server/wm/AppCompatController.java
index 54223b6..d38edfc 100644
--- a/services/core/java/com/android/server/wm/AppCompatController.java
+++ b/services/core/java/com/android/server/wm/AppCompatController.java
@@ -35,7 +35,11 @@
     @NonNull
     private final AppCompatAspectRatioPolicy mAppCompatAspectRatioPolicy;
     @NonNull
+    private final AppCompatReachabilityPolicy mAppCompatReachabilityPolicy;
+    @NonNull
     private final AppCompatOverrides mAppCompatOverrides;
+    @NonNull
+    private final AppCompatDeviceStateQuery mAppCompatDeviceStateQuery;
 
     AppCompatController(@NonNull WindowManagerService wmService,
                         @NonNull ActivityRecord activityRecord) {
@@ -43,13 +47,16 @@
         final PackageManager packageManager = wmService.mContext.getPackageManager();
         final OptPropFactory optPropBuilder = new OptPropFactory(packageManager,
                 activityRecord.packageName);
+        mAppCompatDeviceStateQuery = new AppCompatDeviceStateQuery(activityRecord);
         mTransparentPolicy = new TransparentPolicy(activityRecord,
                 wmService.mAppCompatConfiguration);
         mAppCompatOverrides = new AppCompatOverrides(activityRecord,
-                wmService.mAppCompatConfiguration, optPropBuilder);
+                wmService.mAppCompatConfiguration, optPropBuilder, mAppCompatDeviceStateQuery);
         mOrientationPolicy = new AppCompatOrientationPolicy(activityRecord, mAppCompatOverrides);
         mAppCompatAspectRatioPolicy = new AppCompatAspectRatioPolicy(activityRecord,
                 mTransparentPolicy, mAppCompatOverrides);
+        mAppCompatReachabilityPolicy = new AppCompatReachabilityPolicy(mActivityRecord,
+                wmService.mAppCompatConfiguration);
     }
 
     @NonNull
@@ -101,7 +108,23 @@
     }
 
     @NonNull
+    AppCompatReachabilityPolicy getAppCompatReachabilityPolicy() {
+        return mAppCompatReachabilityPolicy;
+    }
+
+    @NonNull
     AppCompatFocusOverrides getAppCompatFocusOverrides() {
         return mAppCompatOverrides.getAppCompatFocusOverrides();
     }
+
+    @NonNull
+    AppCompatReachabilityOverrides getAppCompatReachabilityOverrides() {
+        return mAppCompatOverrides.getAppCompatReachabilityOverrides();
+    }
+
+    @NonNull
+    AppCompatDeviceStateQuery getAppCompatDeviceStateQuery() {
+        return mAppCompatDeviceStateQuery;
+    }
+
 }
diff --git a/services/core/java/com/android/server/wm/AppCompatDeviceStateQuery.java b/services/core/java/com/android/server/wm/AppCompatDeviceStateQuery.java
new file mode 100644
index 0000000..3abea24
--- /dev/null
+++ b/services/core/java/com/android/server/wm/AppCompatDeviceStateQuery.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2024 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.server.wm;
+
+import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
+
+import android.annotation.NonNull;
+
+/**
+ * Provides information about the current state of the display in relation of
+ * fold/unfold and other positions.
+ */
+class AppCompatDeviceStateQuery {
+
+    @NonNull
+    final ActivityRecord mActivityRecord;
+
+    AppCompatDeviceStateQuery(@NonNull ActivityRecord activityRecord) {
+        mActivityRecord = activityRecord;
+    }
+
+    /**
+     * Check if we are in the given pose and in fullscreen mode.
+     *
+     * Note that we check the task rather than the parent as with ActivityEmbedding the parent
+     * might be a TaskFragment, and its windowing mode is always MULTI_WINDOW, even if the task is
+     * actually fullscreen. If display is still in transition e.g. unfolding, don't return true
+     * for HALF_FOLDED state or app will flicker.
+     */
+    boolean isDisplayFullScreenAndInPosture(boolean isTabletop) {
+        final Task task = mActivityRecord.getTask();
+        final DisplayContent dc = mActivityRecord.mDisplayContent;
+        return dc != null && task != null && !dc.inTransition()
+                && dc.getDisplayRotation().isDeviceInPosture(
+                    DeviceStateController.DeviceState.HALF_FOLDED, isTabletop)
+                && task.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
+    }
+
+    /**
+     * Note that we check the task rather than the parent as with ActivityEmbedding the parent might
+     * be a TaskFragment, and its windowing mode is always MULTI_WINDOW, even if the task is
+     * actually fullscreen.
+     */
+    boolean isDisplayFullScreenAndSeparatingHinge() {
+        final Task task = mActivityRecord.getTask();
+        return mActivityRecord.mDisplayContent != null && task != null
+                && mActivityRecord.mDisplayContent.getDisplayRotation().isDisplaySeparatingHinge()
+                && task.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
+    }
+}
diff --git a/services/core/java/com/android/server/wm/AppCompatOverrides.java b/services/core/java/com/android/server/wm/AppCompatOverrides.java
index 4450011..80bbee3 100644
--- a/services/core/java/com/android/server/wm/AppCompatOverrides.java
+++ b/services/core/java/com/android/server/wm/AppCompatOverrides.java
@@ -35,19 +35,22 @@
     private final AppCompatFocusOverrides mAppCompatFocusOverrides;
     @NonNull
     private final AppCompatResizeOverrides mAppCompatResizeOverrides;
+    @NonNull
+    private final AppCompatReachabilityOverrides mAppCompatReachabilityOverrides;
 
     AppCompatOverrides(@NonNull ActivityRecord activityRecord,
             @NonNull AppCompatConfiguration appCompatConfiguration,
-            @NonNull OptPropFactory optPropBuilder) {
+            @NonNull OptPropFactory optPropBuilder,
+            @NonNull AppCompatDeviceStateQuery appCompatDeviceStateQuery) {
         mAppCompatCameraOverrides = new AppCompatCameraOverrides(activityRecord,
                 appCompatConfiguration, optPropBuilder);
         mAppCompatOrientationOverrides = new AppCompatOrientationOverrides(activityRecord,
                 appCompatConfiguration, optPropBuilder, mAppCompatCameraOverrides);
-        // TODO(b/341903757) Remove BooleanSuppliers after fixing dependency with reachability.
+        mAppCompatReachabilityOverrides = new AppCompatReachabilityOverrides(activityRecord,
+                appCompatConfiguration, appCompatDeviceStateQuery);
         mAppCompatAspectRatioOverrides = new AppCompatAspectRatioOverrides(activityRecord,
-                appCompatConfiguration, optPropBuilder,
-                activityRecord.mLetterboxUiController::isDisplayFullScreenAndInPosture,
-                activityRecord.mLetterboxUiController::getHorizontalPositionMultiplier);
+                appCompatConfiguration, optPropBuilder, appCompatDeviceStateQuery,
+                mAppCompatReachabilityOverrides);
         mAppCompatFocusOverrides = new AppCompatFocusOverrides(activityRecord,
                 appCompatConfiguration, optPropBuilder);
         mAppCompatResizeOverrides = new AppCompatResizeOverrides(activityRecord, optPropBuilder);
@@ -77,4 +80,9 @@
     AppCompatResizeOverrides getAppCompatResizeOverrides() {
         return mAppCompatResizeOverrides;
     }
+
+    @NonNull
+    AppCompatReachabilityOverrides getAppCompatReachabilityOverrides() {
+        return mAppCompatReachabilityOverrides;
+    }
 }
diff --git a/services/core/java/com/android/server/wm/AppCompatReachabilityOverrides.java b/services/core/java/com/android/server/wm/AppCompatReachabilityOverrides.java
new file mode 100644
index 0000000..b9bdc32
--- /dev/null
+++ b/services/core/java/com/android/server/wm/AppCompatReachabilityOverrides.java
@@ -0,0 +1,343 @@
+/*
+ * Copyright (C) 2024 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.server.wm;
+
+import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
+
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__BOTTOM;
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__LEFT;
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__RIGHT;
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__TOP;
+import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__UNKNOWN_POSITION;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_LEFT;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_RIGHT;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_BOTTOM;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_TOP;
+
+import android.annotation.NonNull;
+import android.content.res.Configuration;
+import android.graphics.Rect;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.window.flags.Flags;
+
+/**
+ * Encapsulate overrides and configurations about app compat reachability.
+ */
+class AppCompatReachabilityOverrides {
+
+    @NonNull
+    private final ActivityRecord mActivityRecord;
+    @NonNull
+    private final AppCompatConfiguration mAppCompatConfiguration;
+    @NonNull
+    private final AppCompatDeviceStateQuery mAppCompatDeviceStateQuery;
+    @NonNull
+    private final ReachabilityState mReachabilityState;
+
+    AppCompatReachabilityOverrides(@NonNull ActivityRecord activityRecord,
+            @NonNull AppCompatConfiguration appCompatConfiguration,
+            @NonNull AppCompatDeviceStateQuery appCompatDeviceStateQuery) {
+        mActivityRecord = activityRecord;
+        mAppCompatConfiguration = appCompatConfiguration;
+        mAppCompatDeviceStateQuery = appCompatDeviceStateQuery;
+        mReachabilityState = new ReachabilityState();
+    }
+
+    boolean isFromDoubleTap() {
+        return mReachabilityState.isFromDoubleTap();
+    }
+
+    boolean isDoubleTapEvent() {
+        return mReachabilityState.mIsDoubleTapEvent;
+    }
+
+    void setDoubleTapEvent() {
+        mReachabilityState.mIsDoubleTapEvent = true;
+    }
+
+    /**
+     * Provides the multiplier to use when calculating the position of a letterboxed app after
+     * an horizontal reachability event (double tap). The method takes the current state of the
+     * device (e.g. device in book mode) into account.
+     * </p>
+     * @param parentConfiguration The parent {@link Configuration}.
+     * @return The value to use for calculating the letterbox horizontal position.
+     */
+    float getHorizontalPositionMultiplier(@NonNull Configuration parentConfiguration) {
+        // Don't check resolved configuration because it may not be updated yet during
+        // configuration change.
+        boolean bookModeEnabled = isFullScreenAndBookModeEnabled();
+        return isHorizontalReachabilityEnabled(parentConfiguration)
+                // Using the last global dynamic position to avoid "jumps" when moving
+                // between apps or activities.
+                ? mAppCompatConfiguration.getHorizontalMultiplierForReachability(bookModeEnabled)
+                : mAppCompatConfiguration.getLetterboxHorizontalPositionMultiplier(bookModeEnabled);
+    }
+
+    /**
+     * Provides the multiplier to use when calculating the position of a letterboxed app after
+     * a vertical reachability event (double tap). The method takes the current state of the
+     * device (e.g. device posture) into account.
+     * </p>
+     * @param parentConfiguration The parent {@link Configuration}.
+     * @return The value to use for calculating the letterbox horizontal position.
+     */
+    float getVerticalPositionMultiplier(@NonNull Configuration parentConfiguration) {
+        // Don't check resolved configuration because it may not be updated yet during
+        // configuration change.
+        boolean tabletopMode = mAppCompatDeviceStateQuery
+                .isDisplayFullScreenAndInPosture(/* isTabletop */ true);
+        return isVerticalReachabilityEnabled(parentConfiguration)
+                // Using the last global dynamic position to avoid "jumps" when moving
+                // between apps or activities.
+                ? mAppCompatConfiguration.getVerticalMultiplierForReachability(tabletopMode)
+                : mAppCompatConfiguration.getLetterboxVerticalPositionMultiplier(tabletopMode);
+    }
+
+    @VisibleForTesting
+    boolean isHorizontalReachabilityEnabled() {
+        return isHorizontalReachabilityEnabled(mActivityRecord.getParent().getConfiguration());
+    }
+
+    @VisibleForTesting
+    boolean isVerticalReachabilityEnabled() {
+        return isVerticalReachabilityEnabled(mActivityRecord.getParent().getConfiguration());
+    }
+
+    boolean isLetterboxDoubleTapEducationEnabled() {
+        return isHorizontalReachabilityEnabled() || isVerticalReachabilityEnabled();
+    }
+
+    @AppCompatConfiguration.LetterboxVerticalReachabilityPosition
+    int getLetterboxPositionForVerticalReachability() {
+        final boolean isInFullScreenTabletopMode =
+                mAppCompatDeviceStateQuery.isDisplayFullScreenAndSeparatingHinge();
+        return mAppCompatConfiguration.getLetterboxPositionForVerticalReachability(
+                isInFullScreenTabletopMode);
+    }
+
+    @AppCompatConfiguration.LetterboxHorizontalReachabilityPosition
+    int getLetterboxPositionForHorizontalReachability() {
+        final boolean isInFullScreenBookMode = isFullScreenAndBookModeEnabled();
+        return mAppCompatConfiguration.getLetterboxPositionForHorizontalReachability(
+                isInFullScreenBookMode);
+    }
+
+    int getLetterboxPositionForLogging() {
+        int positionToLog = APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__UNKNOWN_POSITION;
+        if (isHorizontalReachabilityEnabled()) {
+            int letterboxPositionForHorizontalReachability = mAppCompatConfiguration
+                    .getLetterboxPositionForHorizontalReachability(mAppCompatDeviceStateQuery
+                            .isDisplayFullScreenAndInPosture(/* isTabletop */ false));
+            positionToLog = letterboxHorizontalReachabilityPositionToLetterboxPositionForLogging(
+                    letterboxPositionForHorizontalReachability);
+        } else if (isVerticalReachabilityEnabled()) {
+            int letterboxPositionForVerticalReachability = mAppCompatConfiguration
+                    .getLetterboxPositionForVerticalReachability(mAppCompatDeviceStateQuery
+                            .isDisplayFullScreenAndInPosture(/* isTabletop */ true));
+            positionToLog = letterboxVerticalReachabilityPositionToLetterboxPositionForLogging(
+                    letterboxPositionForVerticalReachability);
+        }
+        return positionToLog;
+    }
+
+    /**
+     * @return {@value true} if the vertical reachability should be allowed in case of
+     * thin letterboxing.
+     */
+    boolean allowVerticalReachabilityForThinLetterbox() {
+        if (!Flags.disableThinLetterboxingPolicy()) {
+            return true;
+        }
+        // When the flag is enabled we allow vertical reachability only if the
+        // app is not thin letterboxed vertically.
+        return !isVerticalThinLetterboxed();
+    }
+
+    /**
+     * @return {@value true} if the horizontal reachability should be enabled in case of
+     * thin letterboxing.
+     */
+    boolean allowHorizontalReachabilityForThinLetterbox() {
+        if (!Flags.disableThinLetterboxingPolicy()) {
+            return true;
+        }
+        // When the flag is enabled we allow horizontal reachability only if the
+        // app is not thin pillarboxed.
+        return !isHorizontalThinLetterboxed();
+    }
+
+    /**
+     * @return {@value true} if the resulting app is letterboxed in a way defined as thin.
+     */
+    boolean isVerticalThinLetterboxed() {
+        final int thinHeight = mAppCompatConfiguration.getThinLetterboxHeightPx();
+        if (thinHeight < 0) {
+            return false;
+        }
+        final Task task = mActivityRecord.getTask();
+        if (task == null) {
+            return false;
+        }
+        final int padding = Math.abs(
+                task.getBounds().height() - mActivityRecord.getBounds().height()) / 2;
+        return padding <= thinHeight;
+    }
+
+    /**
+     * @return {@value true} if the resulting app is pillarboxed in a way defined as thin.
+     */
+    boolean isHorizontalThinLetterboxed() {
+        final int thinWidth = mAppCompatConfiguration.getThinLetterboxWidthPx();
+        if (thinWidth < 0) {
+            return false;
+        }
+        final Task task = mActivityRecord.getTask();
+        if (task == null) {
+            return false;
+        }
+        final int padding = Math.abs(
+                task.getBounds().width() - mActivityRecord.getBounds().width()) / 2;
+        return padding <= thinWidth;
+    }
+
+    // Note that we check the task rather than the parent as with ActivityEmbedding the parent might
+    // be a TaskFragment, and its windowing mode is always MULTI_WINDOW, even if the task is
+    // actually fullscreen.
+    private boolean isDisplayFullScreenAndSeparatingHinge() {
+        Task task = mActivityRecord.getTask();
+        return mActivityRecord.mDisplayContent != null
+                && mActivityRecord.mDisplayContent.getDisplayRotation().isDisplaySeparatingHinge()
+                && task != null
+                && task.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
+    }
+
+    private int letterboxHorizontalReachabilityPositionToLetterboxPositionForLogging(
+            @AppCompatConfiguration.LetterboxHorizontalReachabilityPosition int position) {
+        switch (position) {
+            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_LEFT:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__LEFT;
+            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
+            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_RIGHT:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__RIGHT;
+            default:
+                throw new AssertionError(
+                        "Unexpected letterbox horizontal reachability position type: "
+                                + position);
+        }
+    }
+
+    private int letterboxVerticalReachabilityPositionToLetterboxPositionForLogging(
+            @AppCompatConfiguration.LetterboxVerticalReachabilityPosition int position) {
+        switch (position) {
+            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_TOP:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__TOP;
+            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
+            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_BOTTOM:
+                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__BOTTOM;
+            default:
+                throw new AssertionError(
+                        "Unexpected letterbox vertical reachability position type: "
+                                + position);
+        }
+    }
+
+    private boolean isFullScreenAndBookModeEnabled() {
+        return mAppCompatDeviceStateQuery.isDisplayFullScreenAndInPosture(/* isTabletop */ false)
+                && mAppCompatConfiguration.getIsAutomaticReachabilityInBookModeEnabled();
+    }
+
+    /**
+     * Whether horizontal reachability is enabled for an activity in the current configuration.
+     *
+     * <p>Conditions that needs to be met:
+     * <ul>
+     *   <li>Windowing mode is fullscreen.
+     *   <li>Horizontal Reachability is enabled.
+     *   <li>First top opaque activity fills parent vertically, but not horizontally.
+     * </ul>
+     */
+    private boolean isHorizontalReachabilityEnabled(@NonNull Configuration parentConfiguration) {
+        if (!allowHorizontalReachabilityForThinLetterbox()) {
+            return false;
+        }
+        final Rect parentAppBoundsOverride = mActivityRecord.getParentAppBoundsOverride();
+        final Rect parentAppBounds = parentAppBoundsOverride != null
+                ? parentAppBoundsOverride : parentConfiguration.windowConfiguration.getAppBounds();
+        // Use screen resolved bounds which uses resolved bounds or size compat bounds
+        // as activity bounds can sometimes be empty
+        final Rect opaqueActivityBounds = mActivityRecord.mAppCompatController
+                .getTransparentPolicy().getFirstOpaqueActivity()
+                .map(ActivityRecord::getScreenResolvedBounds)
+                .orElse(mActivityRecord.getScreenResolvedBounds());
+        return mAppCompatConfiguration.getIsHorizontalReachabilityEnabled()
+                && parentConfiguration.windowConfiguration.getWindowingMode()
+                == WINDOWING_MODE_FULLSCREEN
+                // Check whether the activity fills the parent vertically.
+                && parentAppBounds.height() <= opaqueActivityBounds.height()
+                && parentAppBounds.width() > opaqueActivityBounds.width();
+    }
+
+    /**
+     * Whether vertical reachability is enabled for an activity in the current configuration.
+     *
+     * <p>Conditions that needs to be met:
+     * <ul>
+     *   <li>Windowing mode is fullscreen.
+     *   <li>Vertical Reachability is enabled.
+     *   <li>First top opaque activity fills parent horizontally but not vertically.
+     * </ul>
+     */
+    private boolean isVerticalReachabilityEnabled(@NonNull Configuration parentConfiguration) {
+        if (!allowVerticalReachabilityForThinLetterbox()) {
+            return false;
+        }
+        final Rect parentAppBoundsOverride = mActivityRecord.getParentAppBoundsOverride();
+        final Rect parentAppBounds = parentAppBoundsOverride != null
+                ? parentAppBoundsOverride : parentConfiguration.windowConfiguration.getAppBounds();
+        // Use screen resolved bounds which uses resolved bounds or size compat bounds
+        // as activity bounds can sometimes be empty.
+        final Rect opaqueActivityBounds = mActivityRecord.mAppCompatController
+                .getTransparentPolicy().getFirstOpaqueActivity()
+                .map(ActivityRecord::getScreenResolvedBounds)
+                .orElse(mActivityRecord.getScreenResolvedBounds());
+        return mAppCompatConfiguration.getIsVerticalReachabilityEnabled()
+                && parentConfiguration.windowConfiguration.getWindowingMode()
+                    == WINDOWING_MODE_FULLSCREEN
+                // Check whether the activity fills the parent horizontally.
+                && parentAppBounds.width() <= opaqueActivityBounds.width()
+                && parentAppBounds.height() > opaqueActivityBounds.height();
+    }
+
+    private static class ReachabilityState {
+        // If the current event is a double tap.
+        private boolean mIsDoubleTapEvent;
+
+        boolean isFromDoubleTap() {
+            final boolean isFromDoubleTap = mIsDoubleTapEvent;
+            mIsDoubleTapEvent = false;
+            return isFromDoubleTap;
+        }
+    }
+
+}
diff --git a/services/core/java/com/android/server/wm/AppCompatReachabilityPolicy.java b/services/core/java/com/android/server/wm/AppCompatReachabilityPolicy.java
new file mode 100644
index 0000000..e4e7654
--- /dev/null
+++ b/services/core/java/com/android/server/wm/AppCompatReachabilityPolicy.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2024 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.server.wm;
+
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__BOTTOM_TO_CENTER;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_BOTTOM;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_LEFT;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_RIGHT;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_TOP;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__LEFT_TO_CENTER;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__RIGHT_TO_CENTER;
+import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__TOP_TO_CENTER;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER;
+import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER;
+
+import android.annotation.NonNull;
+import android.graphics.Rect;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.util.function.Supplier;
+
+/**
+ * Encapsulate logic about app compat reachability.
+ */
+class AppCompatReachabilityPolicy {
+
+    @NonNull
+    private final ActivityRecord mActivityRecord;
+    @NonNull
+    private final AppCompatConfiguration mAppCompatConfiguration;
+
+    AppCompatReachabilityPolicy(@NonNull ActivityRecord activityRecord,
+            @NonNull AppCompatConfiguration appCompatConfiguration) {
+        mActivityRecord = activityRecord;
+        mAppCompatConfiguration = appCompatConfiguration;
+    }
+
+    @VisibleForTesting
+    void handleHorizontalDoubleTap(int x, @NonNull Supplier<Rect> innerFrameSupplier) {
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivityRecord.mAppCompatController.getAppCompatReachabilityOverrides();
+        if (!reachabilityOverrides.isHorizontalReachabilityEnabled()
+                || mActivityRecord.isInTransition()) {
+            return;
+        }
+        final Rect letterboxInnerFrame = innerFrameSupplier.get();
+        if (letterboxInnerFrame.left <= x && letterboxInnerFrame.right >= x) {
+            // Only react to clicks at the sides of the letterboxed app window.
+            return;
+        }
+        final AppCompatDeviceStateQuery deviceStateQuery = mActivityRecord.mAppCompatController
+                .getAppCompatDeviceStateQuery();
+        final boolean isInFullScreenBookMode = deviceStateQuery
+                    .isDisplayFullScreenAndSeparatingHinge()
+                && mAppCompatConfiguration.getIsAutomaticReachabilityInBookModeEnabled();
+        final int letterboxPositionForHorizontalReachability = mAppCompatConfiguration
+                .getLetterboxPositionForHorizontalReachability(isInFullScreenBookMode);
+        if (letterboxInnerFrame.left > x) {
+            // Moving to the next stop on the left side of the app window: right > center > left.
+            mAppCompatConfiguration.movePositionForHorizontalReachabilityToNextLeftStop(
+                    isInFullScreenBookMode);
+            int letterboxPositionChangeForLog =
+                    letterboxPositionForHorizontalReachability
+                            == LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER
+                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_LEFT
+                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__RIGHT_TO_CENTER;
+            logLetterboxPositionChange(letterboxPositionChangeForLog);
+            reachabilityOverrides.setDoubleTapEvent();
+        } else if (letterboxInnerFrame.right < x) {
+            // Moving to the next stop on the right side of the app window: left > center > right.
+            mAppCompatConfiguration.movePositionForHorizontalReachabilityToNextRightStop(
+                    isInFullScreenBookMode);
+            final int letterboxPositionChangeForLog =
+                    letterboxPositionForHorizontalReachability
+                            == LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER
+                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_RIGHT
+                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__LEFT_TO_CENTER;
+            logLetterboxPositionChange(letterboxPositionChangeForLog);
+            reachabilityOverrides.setDoubleTapEvent();
+        }
+        // TODO(197549949): Add animation for transition.
+        mActivityRecord.recomputeConfiguration();
+    }
+
+    @VisibleForTesting
+    void handleVerticalDoubleTap(int y, @NonNull Supplier<Rect> innerFrameSupplier) {
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivityRecord.mAppCompatController.getAppCompatReachabilityOverrides();
+        if (!reachabilityOverrides.isVerticalReachabilityEnabled()
+                || mActivityRecord.isInTransition()) {
+            return;
+        }
+        final Rect letterboxInnerFrame = innerFrameSupplier.get();
+        if (letterboxInnerFrame.top <= y && letterboxInnerFrame.bottom >= y) {
+            // Only react to clicks at the top and bottom of the letterboxed app window.
+            return;
+        }
+        final AppCompatDeviceStateQuery deviceStateQuery = mActivityRecord.mAppCompatController
+                .getAppCompatDeviceStateQuery();
+        final boolean isInFullScreenTabletopMode = deviceStateQuery
+                .isDisplayFullScreenAndSeparatingHinge();
+        final int letterboxPositionForVerticalReachability = mAppCompatConfiguration
+                .getLetterboxPositionForVerticalReachability(isInFullScreenTabletopMode);
+        if (letterboxInnerFrame.top > y) {
+            // Moving to the next stop on the top side of the app window: bottom > center > top.
+            mAppCompatConfiguration.movePositionForVerticalReachabilityToNextTopStop(
+                    isInFullScreenTabletopMode);
+            final int letterboxPositionChangeForLog =
+                    letterboxPositionForVerticalReachability
+                            == LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER
+                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_TOP
+                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__BOTTOM_TO_CENTER;
+            logLetterboxPositionChange(letterboxPositionChangeForLog);
+            reachabilityOverrides.setDoubleTapEvent();
+        } else if (letterboxInnerFrame.bottom < y) {
+            // Moving to the next stop on the bottom side of the app window: top > center > bottom.
+            mAppCompatConfiguration.movePositionForVerticalReachabilityToNextBottomStop(
+                    isInFullScreenTabletopMode);
+            final int letterboxPositionChangeForLog =
+                    letterboxPositionForVerticalReachability
+                            == LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER
+                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_BOTTOM
+                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__TOP_TO_CENTER;
+            logLetterboxPositionChange(letterboxPositionChangeForLog);
+            reachabilityOverrides.setDoubleTapEvent();
+        }
+        // TODO(197549949): Add animation for transition.
+        mActivityRecord.recomputeConfiguration();
+    }
+
+    /**
+     * Logs letterbox position changes via {@link ActivityMetricsLogger#logLetterboxPositionChange}.
+     */
+    private void logLetterboxPositionChange(int letterboxPositionChangeForLog) {
+        mActivityRecord.mTaskSupervisor.getActivityMetricsLogger()
+                .logLetterboxPositionChange(mActivityRecord, letterboxPositionChangeForLog);
+    }
+}
diff --git a/services/core/java/com/android/server/wm/AppCompatUtils.java b/services/core/java/com/android/server/wm/AppCompatUtils.java
index a4cb389..8c5193e 100644
--- a/services/core/java/com/android/server/wm/AppCompatUtils.java
+++ b/services/core/java/com/android/server/wm/AppCompatUtils.java
@@ -98,11 +98,11 @@
         appCompatTaskInfo.topActivityLetterboxHeight = TaskInfo.PROPERTY_VALUE_UNSET;
         appCompatTaskInfo.cameraCompatTaskInfo.freeformCameraCompatMode =
                 CameraCompatTaskInfo.CAMERA_COMPAT_FREEFORM_NONE;
-
         if (top == null) {
             return;
         }
-
+        final AppCompatReachabilityOverrides reachabilityOverrides = top.mAppCompatController
+                .getAppCompatReachabilityOverrides();
         final boolean isTopActivityResumed = top.getOrganizedTask() == task && top.isState(RESUMED);
         final boolean isTopActivityVisible = top.getOrganizedTask() == task && top.isVisible();
         // Whether the direct top activity is in size compat mode.
@@ -123,30 +123,27 @@
         appCompatTaskInfo.isSystemFullscreenOverrideEnabled = top.mAppCompatController
                 .getAppCompatAspectRatioOverrides().isSystemOverrideToFullscreenEnabled();
 
-        appCompatTaskInfo.isFromLetterboxDoubleTap = top.mLetterboxUiController.isFromDoubleTap();
+        appCompatTaskInfo.isFromLetterboxDoubleTap = reachabilityOverrides.isFromDoubleTap();
         appCompatTaskInfo.topActivityLetterboxWidth = top.getBounds().width();
         appCompatTaskInfo.topActivityLetterboxHeight = top.getBounds().height();
-
         // We need to consider if letterboxed or pillarboxed.
         // TODO(b/336807329) Encapsulate reachability logic
-        appCompatTaskInfo.isLetterboxDoubleTapEnabled = top.mLetterboxUiController
+        appCompatTaskInfo.isLetterboxDoubleTapEnabled = reachabilityOverrides
                 .isLetterboxDoubleTapEducationEnabled();
         if (appCompatTaskInfo.isLetterboxDoubleTapEnabled) {
             if (appCompatTaskInfo.isTopActivityPillarboxed()) {
-                if (top.mLetterboxUiController.allowHorizontalReachabilityForThinLetterbox()) {
+                if (reachabilityOverrides.allowHorizontalReachabilityForThinLetterbox()) {
                     // Pillarboxed.
                     appCompatTaskInfo.topActivityLetterboxHorizontalPosition =
-                            top.mLetterboxUiController
-                                    .getLetterboxPositionForHorizontalReachability();
+                            reachabilityOverrides.getLetterboxPositionForHorizontalReachability();
                 } else {
                     appCompatTaskInfo.isLetterboxDoubleTapEnabled = false;
                 }
             } else {
-                if (top.mLetterboxUiController.allowVerticalReachabilityForThinLetterbox()) {
+                if (reachabilityOverrides.allowVerticalReachabilityForThinLetterbox()) {
                     // Letterboxed.
                     appCompatTaskInfo.topActivityLetterboxVerticalPosition =
-                            top.mLetterboxUiController
-                                    .getLetterboxPositionForVerticalReachability();
+                            reachabilityOverrides.getLetterboxPositionForVerticalReachability();
                 } else {
                     appCompatTaskInfo.isLetterboxDoubleTapEnabled = false;
                 }
diff --git a/services/core/java/com/android/server/wm/LetterboxUiController.java b/services/core/java/com/android/server/wm/LetterboxUiController.java
index 291eab1..eb8a637 100644
--- a/services/core/java/com/android/server/wm/LetterboxUiController.java
+++ b/services/core/java/com/android/server/wm/LetterboxUiController.java
@@ -16,37 +16,16 @@
 
 package com.android.server.wm;
 
-import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
 import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;
 
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__BOTTOM;
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__LEFT;
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__RIGHT;
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__TOP;
-import static com.android.internal.util.FrameworkStatsLog.APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__UNKNOWN_POSITION;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__BOTTOM_TO_CENTER;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_BOTTOM;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_LEFT;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_RIGHT;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_TOP;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__LEFT_TO_CENTER;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__RIGHT_TO_CENTER;
-import static com.android.internal.util.FrameworkStatsLog.LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__TOP_TO_CENTER;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
 import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_BACKGROUND_APP_COLOR_BACKGROUND;
 import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_BACKGROUND_APP_COLOR_BACKGROUND_FLOATING;
 import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_BACKGROUND_SOLID_COLOR;
 import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_BACKGROUND_WALLPAPER;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_LEFT;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_RIGHT;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_BOTTOM;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER;
-import static com.android.server.wm.AppCompatConfiguration.LETTERBOX_VERTICAL_REACHABILITY_POSITION_TOP;
 import static com.android.server.wm.AppCompatConfiguration.letterboxBackgroundTypeToString;
 
 import android.annotation.NonNull;
@@ -68,7 +47,6 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.statusbar.LetterboxDetails;
 import com.android.server.wm.AppCompatConfiguration.LetterboxBackgroundType;
-import com.android.window.flags.Flags;
 
 import java.io.PrintWriter;
 
@@ -92,8 +70,6 @@
 
     private boolean mLastShouldShowLetterboxUi;
 
-    private boolean mDoubleTapEvent;
-
     LetterboxUiController(WindowManagerService wmService, ActivityRecord activityRecord) {
         mAppCompatConfiguration = wmService.mAppCompatConfiguration;
         // Given activityRecord may not be fully constructed since LetterboxUiController
@@ -231,7 +207,8 @@
                     .getTransparentPolicy().isRunning()
                     ? mActivityRecord.getBounds() : w.getFrame();
             mLetterbox.layout(spaceToFill, innerFrame, mTmpPoint);
-            if (mDoubleTapEvent) {
+            if (mActivityRecord.mAppCompatController
+                    .getAppCompatReachabilityOverrides().isDoubleTapEvent()) {
                 // We need to notify Shell that letterbox position has changed.
                 mActivityRecord.getTask().dispatchTaskInfoChangedIfNeeded(true /* force */);
             }
@@ -240,12 +217,6 @@
         }
     }
 
-    boolean isFromDoubleTap() {
-        final boolean isFromDoubleTap = mDoubleTapEvent;
-        mDoubleTapEvent = false;
-        return isFromDoubleTap;
-    }
-
     SurfaceControl getLetterboxParentSurface() {
         if (mActivityRecord.isInLetterboxAnimation()) {
             return mActivityRecord.getTask().getSurfaceControl();
@@ -272,309 +243,35 @@
                 && mActivityRecord.fillsParent();
     }
 
-    // Check if we are in the given pose and in fullscreen mode.
-    // Note that we check the task rather than the parent as with ActivityEmbedding the parent might
-    // be a TaskFragment, and its windowing mode is always MULTI_WINDOW, even if the task is
-    // actually fullscreen. If display is still in transition e.g. unfolding, don't return true
-    // for HALF_FOLDED state or app will flicker.
-    boolean isDisplayFullScreenAndInPosture(boolean isTabletop) {
-        Task task = mActivityRecord.getTask();
-        return mActivityRecord.mDisplayContent != null && task != null
-                && mActivityRecord.mDisplayContent.getDisplayRotation().isDeviceInPosture(
-                        DeviceStateController.DeviceState.HALF_FOLDED, isTabletop)
-                && !mActivityRecord.mDisplayContent.inTransition()
-                && task.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
+    float getHorizontalPositionMultiplier(@NonNull Configuration parentConfiguration) {
+        return mActivityRecord.mAppCompatController.getAppCompatReachabilityOverrides()
+                .getHorizontalPositionMultiplier(parentConfiguration);
     }
 
-    // Note that we check the task rather than the parent as with ActivityEmbedding the parent might
-    // be a TaskFragment, and its windowing mode is always MULTI_WINDOW, even if the task is
-    // actually fullscreen.
-    private boolean isDisplayFullScreenAndSeparatingHinge() {
-        Task task = mActivityRecord.getTask();
-        return mActivityRecord.mDisplayContent != null
-                && mActivityRecord.mDisplayContent.getDisplayRotation().isDisplaySeparatingHinge()
-                && task != null
-                && task.getWindowingMode() == WINDOWING_MODE_FULLSCREEN;
-    }
-
-
-    float getHorizontalPositionMultiplier(Configuration parentConfiguration) {
-        // Don't check resolved configuration because it may not be updated yet during
-        // configuration change.
-        boolean bookModeEnabled = isFullScreenAndBookModeEnabled();
-        return isHorizontalReachabilityEnabled(parentConfiguration)
-                // Using the last global dynamic position to avoid "jumps" when moving
-                // between apps or activities.
-                ? mAppCompatConfiguration.getHorizontalMultiplierForReachability(bookModeEnabled)
-                : mAppCompatConfiguration.getLetterboxHorizontalPositionMultiplier(bookModeEnabled);
-    }
-
-    private boolean isFullScreenAndBookModeEnabled() {
-        return isDisplayFullScreenAndInPosture(/* isTabletop */ false)
-                && mAppCompatConfiguration.getIsAutomaticReachabilityInBookModeEnabled();
-    }
-
-    float getVerticalPositionMultiplier(Configuration parentConfiguration) {
-        // Don't check resolved configuration because it may not be updated yet during
-        // configuration change.
-        boolean tabletopMode = isDisplayFullScreenAndInPosture(/* isTabletop */ true);
-        return isVerticalReachabilityEnabled(parentConfiguration)
-                // Using the last global dynamic position to avoid "jumps" when moving
-                // between apps or activities.
-                ? mAppCompatConfiguration.getVerticalMultiplierForReachability(tabletopMode)
-                : mAppCompatConfiguration.getLetterboxVerticalPositionMultiplier(tabletopMode);
+    float getVerticalPositionMultiplier(@NonNull Configuration parentConfiguration) {
+        return mActivityRecord.mAppCompatController.getAppCompatReachabilityOverrides()
+                .getVerticalPositionMultiplier(parentConfiguration);
     }
 
     boolean isLetterboxEducationEnabled() {
         return mAppCompatConfiguration.getIsEducationEnabled();
     }
 
-    /**
-     * @return {@value true} if the resulting app is letterboxed in a way defined as thin.
-     */
-    boolean isVerticalThinLetterboxed() {
-        final int thinHeight = mAppCompatConfiguration.getThinLetterboxHeightPx();
-        if (thinHeight < 0) {
-            return false;
-        }
-        final Task task = mActivityRecord.getTask();
-        if (task == null) {
-            return false;
-        }
-        final int padding = Math.abs(
-                task.getBounds().height() - mActivityRecord.getBounds().height()) / 2;
-        return padding <= thinHeight;
-    }
-
-    /**
-     * @return {@value true} if the resulting app is pillarboxed in a way defined as thin.
-     */
-    boolean isHorizontalThinLetterboxed() {
-        final int thinWidth = mAppCompatConfiguration.getThinLetterboxWidthPx();
-        if (thinWidth < 0) {
-            return false;
-        }
-        final Task task = mActivityRecord.getTask();
-        if (task == null) {
-            return false;
-        }
-        final int padding = Math.abs(
-                task.getBounds().width() - mActivityRecord.getBounds().width()) / 2;
-        return padding <= thinWidth;
-    }
-
-
-    /**
-     * @return {@value true} if the vertical reachability should be allowed in case of
-     * thin letteboxing
-     */
-    boolean allowVerticalReachabilityForThinLetterbox() {
-        if (!Flags.disableThinLetterboxingPolicy()) {
-            return true;
-        }
-        // When the flag is enabled we allow vertical reachability only if the
-        // app is not thin letterboxed vertically.
-        return !isVerticalThinLetterboxed();
-    }
-
-    /**
-     * @return {@value true} if the vertical reachability should be enabled in case of
-     * thin letteboxing
-     */
-    boolean allowHorizontalReachabilityForThinLetterbox() {
-        if (!Flags.disableThinLetterboxingPolicy()) {
-            return true;
-        }
-        // When the flag is enabled we allow horizontal reachability only if the
-        // app is not thin pillarboxed.
-        return !isHorizontalThinLetterboxed();
-    }
-
-    boolean shouldOverrideMinAspectRatio() {
-        return mActivityRecord.mAppCompatController.getAppCompatAspectRatioOverrides()
-                .shouldOverrideMinAspectRatio();
-    }
-
-    @AppCompatConfiguration.LetterboxVerticalReachabilityPosition
-    int getLetterboxPositionForVerticalReachability() {
-        final boolean isInFullScreenTabletopMode = isDisplayFullScreenAndSeparatingHinge();
-        return mAppCompatConfiguration.getLetterboxPositionForVerticalReachability(
-                isInFullScreenTabletopMode);
-    }
-
-    @AppCompatConfiguration.LetterboxHorizontalReachabilityPosition
-    int getLetterboxPositionForHorizontalReachability() {
-        final boolean isInFullScreenBookMode = isFullScreenAndBookModeEnabled();
-        return mAppCompatConfiguration.getLetterboxPositionForHorizontalReachability(
-                isInFullScreenBookMode);
-    }
-
     @VisibleForTesting
     void handleHorizontalDoubleTap(int x) {
-        if (!isHorizontalReachabilityEnabled() || mActivityRecord.isInTransition()) {
-            return;
-        }
-
-        if (mLetterbox.getInnerFrame().left <= x && mLetterbox.getInnerFrame().right >= x) {
-            // Only react to clicks at the sides of the letterboxed app window.
-            return;
-        }
-
-        boolean isInFullScreenBookMode = isDisplayFullScreenAndSeparatingHinge()
-                && mAppCompatConfiguration.getIsAutomaticReachabilityInBookModeEnabled();
-        int letterboxPositionForHorizontalReachability = mAppCompatConfiguration
-                .getLetterboxPositionForHorizontalReachability(isInFullScreenBookMode);
-        if (mLetterbox.getInnerFrame().left > x) {
-            // Moving to the next stop on the left side of the app window: right > center > left.
-            mAppCompatConfiguration.movePositionForHorizontalReachabilityToNextLeftStop(
-                    isInFullScreenBookMode);
-            int changeToLog =
-                    letterboxPositionForHorizontalReachability
-                            == LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER
-                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_LEFT
-                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__RIGHT_TO_CENTER;
-            logLetterboxPositionChange(changeToLog);
-            mDoubleTapEvent = true;
-        } else if (mLetterbox.getInnerFrame().right < x) {
-            // Moving to the next stop on the right side of the app window: left > center > right.
-            mAppCompatConfiguration.movePositionForHorizontalReachabilityToNextRightStop(
-                    isInFullScreenBookMode);
-            int changeToLog =
-                    letterboxPositionForHorizontalReachability
-                            == LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER
-                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_RIGHT
-                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__LEFT_TO_CENTER;
-            logLetterboxPositionChange(changeToLog);
-            mDoubleTapEvent = true;
-        }
-        // TODO(197549949): Add animation for transition.
-        mActivityRecord.recomputeConfiguration();
+        mActivityRecord.mAppCompatController.getAppCompatReachabilityPolicy()
+                .handleHorizontalDoubleTap(x, mLetterbox::getInnerFrame);
     }
 
     @VisibleForTesting
     void handleVerticalDoubleTap(int y) {
-        if (!isVerticalReachabilityEnabled() || mActivityRecord.isInTransition()) {
-            return;
-        }
-
-        if (mLetterbox.getInnerFrame().top <= y && mLetterbox.getInnerFrame().bottom >= y) {
-            // Only react to clicks at the top and bottom of the letterboxed app window.
-            return;
-        }
-        boolean isInFullScreenTabletopMode = isDisplayFullScreenAndSeparatingHinge();
-        int letterboxPositionForVerticalReachability = mAppCompatConfiguration
-                .getLetterboxPositionForVerticalReachability(isInFullScreenTabletopMode);
-        if (mLetterbox.getInnerFrame().top > y) {
-            // Moving to the next stop on the top side of the app window: bottom > center > top.
-            mAppCompatConfiguration.movePositionForVerticalReachabilityToNextTopStop(
-                    isInFullScreenTabletopMode);
-            int changeToLog =
-                    letterboxPositionForVerticalReachability
-                            == LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER
-                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_TOP
-                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__BOTTOM_TO_CENTER;
-            logLetterboxPositionChange(changeToLog);
-            mDoubleTapEvent = true;
-        } else if (mLetterbox.getInnerFrame().bottom < y) {
-            // Moving to the next stop on the bottom side of the app window: top > center > bottom.
-            mAppCompatConfiguration.movePositionForVerticalReachabilityToNextBottomStop(
-                    isInFullScreenTabletopMode);
-            int changeToLog =
-                    letterboxPositionForVerticalReachability
-                            == LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER
-                                ? LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__CENTER_TO_BOTTOM
-                                : LETTERBOX_POSITION_CHANGED__POSITION_CHANGE__TOP_TO_CENTER;
-            logLetterboxPositionChange(changeToLog);
-            mDoubleTapEvent = true;
-        }
-        // TODO(197549949): Add animation for transition.
-        mActivityRecord.recomputeConfiguration();
-    }
-
-    /**
-     * Whether horizontal reachability is enabled for an activity in the current configuration.
-     *
-     * <p>Conditions that needs to be met:
-     * <ul>
-     *   <li>Windowing mode is fullscreen.
-     *   <li>Horizontal Reachability is enabled.
-     *   <li>First top opaque activity fills parent vertically, but not horizontally.
-     * </ul>
-     */
-    private boolean isHorizontalReachabilityEnabled(Configuration parentConfiguration) {
-        if (!allowHorizontalReachabilityForThinLetterbox()) {
-            return false;
-        }
-        final Rect parentAppBoundsOverride = mActivityRecord.getParentAppBoundsOverride();
-        final Rect parentAppBounds = parentAppBoundsOverride != null
-                ? parentAppBoundsOverride : parentConfiguration.windowConfiguration.getAppBounds();
-        // Use screen resolved bounds which uses resolved bounds or size compat bounds
-        // as activity bounds can sometimes be empty
-        final Rect opaqueActivityBounds = mActivityRecord.mAppCompatController
-                .getTransparentPolicy().getFirstOpaqueActivity()
-                .map(ActivityRecord::getScreenResolvedBounds)
-                .orElse(mActivityRecord.getScreenResolvedBounds());
-        return mAppCompatConfiguration.getIsHorizontalReachabilityEnabled()
-                && parentConfiguration.windowConfiguration.getWindowingMode()
-                        == WINDOWING_MODE_FULLSCREEN
-                // Check whether the activity fills the parent vertically.
-                && parentAppBounds.height() <= opaqueActivityBounds.height()
-                && parentAppBounds.width() > opaqueActivityBounds.width();
-    }
-
-    @VisibleForTesting
-    boolean isHorizontalReachabilityEnabled() {
-        return isHorizontalReachabilityEnabled(mActivityRecord.getParent().getConfiguration());
-    }
-
-    boolean isLetterboxDoubleTapEducationEnabled() {
-        return isHorizontalReachabilityEnabled() || isVerticalReachabilityEnabled();
-    }
-
-    // TODO(b/346264992): Remove after AppCompatController refactoring
-    private AppCompatOverrides getAppCompatOverrides() {
-        return mActivityRecord.mAppCompatController.getAppCompatOverrides();
-    }
-
-    /**
-     * Whether vertical reachability is enabled for an activity in the current configuration.
-     *
-     * <p>Conditions that needs to be met:
-     * <ul>
-     *   <li>Windowing mode is fullscreen.
-     *   <li>Vertical Reachability is enabled.
-     *   <li>First top opaque activity fills parent horizontally but not vertically.
-     * </ul>
-     */
-    private boolean isVerticalReachabilityEnabled(Configuration parentConfiguration) {
-        if (!allowVerticalReachabilityForThinLetterbox()) {
-            return false;
-        }
-        final Rect parentAppBoundsOverride = mActivityRecord.getParentAppBoundsOverride();
-        final Rect parentAppBounds = parentAppBoundsOverride != null
-                ? parentAppBoundsOverride : parentConfiguration.windowConfiguration.getAppBounds();
-        // Use screen resolved bounds which uses resolved bounds or size compat bounds
-        // as activity bounds can sometimes be empty.
-        final Rect opaqueActivityBounds = mActivityRecord.mAppCompatController
-                .getTransparentPolicy().getFirstOpaqueActivity()
-                .map(ActivityRecord::getScreenResolvedBounds)
-                .orElse(mActivityRecord.getScreenResolvedBounds());
-        return mAppCompatConfiguration.getIsVerticalReachabilityEnabled()
-                && parentConfiguration.windowConfiguration.getWindowingMode()
-                        == WINDOWING_MODE_FULLSCREEN
-                // Check whether the activity fills the parent horizontally.
-                && parentAppBounds.width() <= opaqueActivityBounds.width()
-                && parentAppBounds.height() > opaqueActivityBounds.height();
-    }
-
-    @VisibleForTesting
-    boolean isVerticalReachabilityEnabled() {
-        return isVerticalReachabilityEnabled(mActivityRecord.getParent().getConfiguration());
+        mActivityRecord.mAppCompatController.getAppCompatReachabilityPolicy()
+                .handleVerticalDoubleTap(y, mLetterbox::getInnerFrame);
     }
 
     @VisibleForTesting
     boolean shouldShowLetterboxUi(WindowState mainWindow) {
-        if (getAppCompatOverrides().getAppCompatOrientationOverrides()
+        if (mActivityRecord.mAppCompatController.getAppCompatOrientationOverrides()
                 .getIsRelaunchingAfterRequestedOrientationChanged()) {
             return mLastShouldShowLetterboxUi;
         }
@@ -818,8 +515,10 @@
         if (!shouldShowLetterboxUi) {
             return;
         }
-        pw.println(prefix + "  isVerticalThinLetterboxed=" + isVerticalThinLetterboxed());
-        pw.println(prefix + "  isHorizontalThinLetterboxed=" + isHorizontalThinLetterboxed());
+        pw.println(prefix + "  isVerticalThinLetterboxed=" + mActivityRecord.mAppCompatController
+                .getAppCompatReachabilityOverrides().isVerticalThinLetterboxed());
+        pw.println(prefix + "  isHorizontalThinLetterboxed=" + mActivityRecord.mAppCompatController
+                .getAppCompatReachabilityOverrides().isHorizontalThinLetterboxed());
         pw.println(prefix + "  letterboxBackgroundColor=" + Integer.toHexString(
                 getLetterboxBackgroundColor().toArgb()));
         pw.println(prefix + "  letterboxBackgroundType="
@@ -836,10 +535,12 @@
             pw.println(prefix + "  letterboxBackgroundWallpaperBlurRadius="
                     + getLetterboxWallpaperBlurRadiusPx());
         }
-
+        final AppCompatReachabilityOverrides reachabilityOverrides = mActivityRecord
+                .mAppCompatController.getAppCompatReachabilityOverrides();
         pw.println(prefix + "  isHorizontalReachabilityEnabled="
-                + isHorizontalReachabilityEnabled());
-        pw.println(prefix + "  isVerticalReachabilityEnabled=" + isVerticalReachabilityEnabled());
+                + reachabilityOverrides.isHorizontalReachabilityEnabled());
+        pw.println(prefix + "  isVerticalReachabilityEnabled="
+                + reachabilityOverrides.isVerticalReachabilityEnabled());
         pw.println(prefix + "  letterboxHorizontalPositionMultiplier="
                 + getHorizontalPositionMultiplier(mActivityRecord.getParent().getConfiguration()));
         pw.println(prefix + "  letterboxVerticalPositionMultiplier="
@@ -883,64 +584,6 @@
         return "UNKNOWN_REASON";
     }
 
-    private int letterboxHorizontalReachabilityPositionToLetterboxPosition(
-            @AppCompatConfiguration.LetterboxHorizontalReachabilityPosition int position) {
-        switch (position) {
-            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_LEFT:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__LEFT;
-            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_CENTER:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
-            case LETTERBOX_HORIZONTAL_REACHABILITY_POSITION_RIGHT:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__RIGHT;
-            default:
-                throw new AssertionError(
-                        "Unexpected letterbox horizontal reachability position type: "
-                                + position);
-        }
-    }
-
-    private int letterboxVerticalReachabilityPositionToLetterboxPosition(
-            @AppCompatConfiguration.LetterboxVerticalReachabilityPosition int position) {
-        switch (position) {
-            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_TOP:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__TOP;
-            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_CENTER:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__CENTER;
-            case LETTERBOX_VERTICAL_REACHABILITY_POSITION_BOTTOM:
-                return APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__BOTTOM;
-            default:
-                throw new AssertionError(
-                        "Unexpected letterbox vertical reachability position type: "
-                                + position);
-        }
-    }
-
-    int getLetterboxPositionForLogging() {
-        int positionToLog = APP_COMPAT_STATE_CHANGED__LETTERBOX_POSITION__UNKNOWN_POSITION;
-        if (isHorizontalReachabilityEnabled()) {
-            int letterboxPositionForHorizontalReachability = mAppCompatConfiguration
-                    .getLetterboxPositionForHorizontalReachability(
-                            isDisplayFullScreenAndInPosture(/* isTabletop */ false));
-            positionToLog = letterboxHorizontalReachabilityPositionToLetterboxPosition(
-                    letterboxPositionForHorizontalReachability);
-        } else if (isVerticalReachabilityEnabled()) {
-            int letterboxPositionForVerticalReachability = mAppCompatConfiguration
-                    .getLetterboxPositionForVerticalReachability(
-                            isDisplayFullScreenAndInPosture(/* isTabletop */ true));
-            positionToLog = letterboxVerticalReachabilityPositionToLetterboxPosition(
-                    letterboxPositionForVerticalReachability);
-        }
-        return positionToLog;
-    }
-
-    /**
-     * Logs letterbox position changes via {@link ActivityMetricsLogger#logLetterboxPositionChange}.
-     */
-    private void logLetterboxPositionChange(int letterboxPositionChange) {
-        mActivityRecord.mTaskSupervisor.getActivityMetricsLogger()
-                .logLetterboxPositionChange(mActivityRecord, letterboxPositionChange);
-    }
-
     @Nullable
     LetterboxDetails getLetterboxDetails() {
         final WindowState w = mActivityRecord.findMainWindow();
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 7ada4c7..d3df5fd 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -3389,7 +3389,6 @@
         info.isTopActivityTransparent = top != null && !top.fillsParent();
         info.isTopActivityStyleFloating = top != null && top.isStyleFloating();
         info.lastNonFullscreenBounds = topTask.mLastNonFullscreenBounds;
-
         AppCompatUtils.fillAppCompatTaskInfo(this, info, top);
     }
 
diff --git a/services/tests/mockingservicestests/src/com/android/server/alarm/AlarmManagerServiceTest.java b/services/tests/mockingservicestests/src/com/android/server/alarm/AlarmManagerServiceTest.java
index cb15d6f..b980ca0 100644
--- a/services/tests/mockingservicestests/src/com/android/server/alarm/AlarmManagerServiceTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/alarm/AlarmManagerServiceTest.java
@@ -132,6 +132,7 @@
 import android.content.Intent;
 import android.content.PermissionChecker;
 import android.content.pm.PackageManagerInternal;
+import android.content.pm.UserInfo;
 import android.net.Uri;
 import android.os.BatteryManager;
 import android.os.Bundle;
@@ -149,6 +150,7 @@
 import android.os.ServiceManager;
 import android.os.SystemProperties;
 import android.os.UserHandle;
+import android.os.UserManager;
 import android.platform.test.annotations.DisableFlags;
 import android.platform.test.annotations.EnableFlags;
 import android.platform.test.annotations.Presubmit;
@@ -176,6 +178,7 @@
 import com.android.server.LocalServices;
 import com.android.server.SystemClockTime.TimeConfidence;
 import com.android.server.SystemService;
+import com.android.server.pm.UserManagerInternal;
 import com.android.server.pm.permission.PermissionManagerService;
 import com.android.server.pm.permission.PermissionManagerServiceInternal;
 import com.android.server.pm.pkg.AndroidPackage;
@@ -250,6 +253,8 @@
     @Mock
     private ActivityManagerInternal mActivityManagerInternal;
     @Mock
+    private UserManagerInternal mUserManagerInternal;
+    @Mock
     private ActivityManager mActivityManager;
     @Mock
     private PackageManagerInternal mPackageManagerInternal;
@@ -447,6 +452,8 @@
                 () -> LocalServices.getService(PermissionManagerServiceInternal.class));
         doReturn(mActivityManagerInternal).when(
                 () -> LocalServices.getService(ActivityManagerInternal.class));
+        doReturn(mUserManagerInternal).when(
+                () -> LocalServices.getService(UserManagerInternal.class));
         doReturn(mPackageManagerInternal).when(
                 () -> LocalServices.getService(PackageManagerInternal.class));
         doReturn(mAppStateTracker).when(() -> LocalServices.getService(AppStateTracker.class));
@@ -1252,6 +1259,26 @@
     }
 
     @Test
+    public void wakeupShouldBeScheduledForFullUsers_skipsGuestSystemAndProfiles() {
+        final int systemUserId = 0;
+        final int fullUserId = 10;
+        final int privateProfileId = 12;
+        final int guestUserId = 13;
+        when(mUserManagerInternal.getUserInfo(fullUserId)).thenReturn(new UserInfo(fullUserId,
+                "TestUser2", UserInfo.FLAG_FULL));
+        when(mUserManagerInternal.getUserInfo(privateProfileId)).thenReturn(new UserInfo(
+                privateProfileId, "TestUser3", UserInfo.FLAG_PROFILE));
+        when(mUserManagerInternal.getUserInfo(guestUserId)).thenReturn(new UserInfo(
+                guestUserId, "TestUserGuest", null, 0, UserManager.USER_TYPE_FULL_GUEST));
+        when(mUserManagerInternal.getUserInfo(systemUserId)).thenReturn(new UserInfo(
+                systemUserId, "TestUserSystem", null, 0, UserManager.USER_TYPE_FULL_SYSTEM));
+        assertTrue(mService.shouldAddWakeupForUser(fullUserId));
+        assertFalse(mService.shouldAddWakeupForUser(systemUserId));
+        assertFalse(mService.shouldAddWakeupForUser(privateProfileId));
+        assertFalse(mService.shouldAddWakeupForUser(guestUserId));
+    }
+
+    @Test
     public void sendsTimeTickOnInteractive() {
         final ArgumentCaptor<Runnable> runnableCaptor = ArgumentCaptor.forClass(Runnable.class);
         // Stubbing so the handler doesn't actually run the runnable.
diff --git a/services/tests/mockingservicestests/src/com/android/server/alarm/UserWakeupStoreTest.java b/services/tests/mockingservicestests/src/com/android/server/alarm/UserWakeupStoreTest.java
index 5bd919f..72883e2 100644
--- a/services/tests/mockingservicestests/src/com/android/server/alarm/UserWakeupStoreTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/alarm/UserWakeupStoreTest.java
@@ -23,7 +23,6 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
-import static org.testng.AssertJUnit.assertFalse;
 
 import android.os.Environment;
 import android.os.FileUtils;
@@ -52,7 +51,6 @@
     private static final int USER_ID_1 = 10;
     private static final int USER_ID_2 = 11;
     private static final int USER_ID_3 = 12;
-    private static final int USER_ID_SYSTEM = 0;
     private static final long TEST_TIMESTAMP = 150_000;
     private static final File TEST_SYSTEM_DIR = new File(InstrumentationRegistry
             .getInstrumentation().getContext().getDataDir(), "alarmsTestDir");
@@ -112,14 +110,6 @@
     }
 
     @Test
-    public void testAddWakeupForSystemUser_shouldDoNothing() {
-        mUserWakeupStore.addUserWakeup(USER_ID_SYSTEM, TEST_TIMESTAMP - 19_000);
-        assertEquals(0, mUserWakeupStore.getUserIdsToWakeup(TEST_TIMESTAMP).length);
-        final File file = new File(ROOT_DIR , "usersWithAlarmClocks.xml");
-        assertFalse(file.exists());
-    }
-
-    @Test
     public void testAddMultipleWakeupsForUser_ensureOnlyLastWakeupRemains() {
         final long finalAlarmTime = TEST_TIMESTAMP - 13_000;
         mUserWakeupStore.addUserWakeup(USER_ID_1, TEST_TIMESTAMP - 29_000);
diff --git a/services/tests/wmtests/src/com/android/server/policy/ModifierShortcutManagerTests.java b/services/tests/wmtests/src/com/android/server/policy/ModifierShortcutManagerTests.java
index 50041d0..d147325 100644
--- a/services/tests/wmtests/src/com/android/server/policy/ModifierShortcutManagerTests.java
+++ b/services/tests/wmtests/src/com/android/server/policy/ModifierShortcutManagerTests.java
@@ -35,6 +35,7 @@
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.content.res.XmlResourceParser;
 import android.os.Handler;
@@ -89,9 +90,12 @@
             testActivityInfo.applicationInfo = new ApplicationInfo();
             testActivityInfo.packageName =
                     testActivityInfo.applicationInfo.packageName = "com.test";
+            ResolveInfo testResolveInfo = new ResolveInfo();
+            testResolveInfo.activityInfo = testActivityInfo;
 
             doReturn(testActivityInfo).when(mPackageManager).getActivityInfo(
                     eq(new ComponentName("com.test", "com.test.BookmarkTest")), anyInt());
+            doReturn(testResolveInfo).when(mPackageManager).resolveActivity(anyObject(), anyInt());
             doThrow(new PackageManager.NameNotFoundException("com.test3")).when(mPackageManager)
                     .getActivityInfo(eq(new ComponentName("com.test3", "com.test.BookmarkTest")),
                         anyInt());
diff --git a/services/tests/wmtests/src/com/android/server/policy/StemKeyGestureTests.java b/services/tests/wmtests/src/com/android/server/policy/StemKeyGestureTests.java
index 2e85025..eed4b0b 100644
--- a/services/tests/wmtests/src/com/android/server/policy/StemKeyGestureTests.java
+++ b/services/tests/wmtests/src/com/android/server/policy/StemKeyGestureTests.java
@@ -36,6 +36,7 @@
 import android.provider.Settings;
 import android.view.Display;
 
+import org.junit.Before;
 import org.junit.Test;
 
 /**
@@ -48,6 +49,13 @@
 
     private static final String TEST_TARGET_ACTIVITY = "com.android.server.policy/.TestActivity";
 
+    @Before
+    public void setup() {
+        super.setup();
+        overrideResource(com.android.internal.R.integer.config_longPressOnStemPrimaryBehavior,
+                LONG_PRESS_PRIMARY_LAUNCH_VOICE_ASSISTANT);
+    }
+
     /**
      * Stem single key should not launch behavior during set up.
      */
diff --git a/services/tests/wmtests/src/com/android/server/wm/LetterboxUiControllerTest.java b/services/tests/wmtests/src/com/android/server/wm/LetterboxUiControllerTest.java
index 61a6f31..33df5d8 100644
--- a/services/tests/wmtests/src/com/android/server/wm/LetterboxUiControllerTest.java
+++ b/services/tests/wmtests/src/com/android/server/wm/LetterboxUiControllerTest.java
@@ -300,7 +300,9 @@
         // Vertical thin letterbox disabled
         doReturn(-1).when(mActivity.mWmService.mAppCompatConfiguration)
                 .getThinLetterboxHeightPx();
-        assertFalse(mController.isVerticalThinLetterboxed());
+        final AppCompatReachabilityOverrides reachabilityOverrides = mActivity.mAppCompatController
+                .getAppCompatReachabilityOverrides();
+        assertFalse(reachabilityOverrides.isVerticalThinLetterboxed());
         // Define a Task 100x100
         final Task task = mock(Task.class);
         doReturn(new Rect(0, 0, 100, 100)).when(task).getBounds();
@@ -309,21 +311,21 @@
 
         // Vertical thin letterbox disabled without Task
         doReturn(null).when(mActivity).getTask();
-        assertFalse(mController.isVerticalThinLetterboxed());
+        assertFalse(reachabilityOverrides.isVerticalThinLetterboxed());
         // Assign a Task for the Activity
         doReturn(task).when(mActivity).getTask();
 
         // (task.width() - act.width()) / 2  = 5 < 10
         doReturn(new Rect(5, 5, 95, 95)).when(mActivity).getBounds();
-        assertTrue(mController.isVerticalThinLetterboxed());
+        assertTrue(reachabilityOverrides.isVerticalThinLetterboxed());
 
         // (task.width() - act.width()) / 2  = 10 = 10
         doReturn(new Rect(10, 10, 90, 90)).when(mActivity).getBounds();
-        assertTrue(mController.isVerticalThinLetterboxed());
+        assertTrue(reachabilityOverrides.isVerticalThinLetterboxed());
 
         // (task.width() - act.width()) / 2  = 11 > 10
         doReturn(new Rect(11, 11, 89, 89)).when(mActivity).getBounds();
-        assertFalse(mController.isVerticalThinLetterboxed());
+        assertFalse(reachabilityOverrides.isVerticalThinLetterboxed());
     }
 
     @Test
@@ -331,7 +333,9 @@
         // Horizontal thin letterbox disabled
         doReturn(-1).when(mActivity.mWmService.mAppCompatConfiguration)
                 .getThinLetterboxWidthPx();
-        assertFalse(mController.isHorizontalThinLetterboxed());
+        final AppCompatReachabilityOverrides reachabilityOverrides = mActivity.mAppCompatController
+                .getAppCompatReachabilityOverrides();
+        assertFalse(reachabilityOverrides.isHorizontalThinLetterboxed());
         // Define a Task 100x100
         final Task task = mock(Task.class);
         doReturn(new Rect(0, 0, 100, 100)).when(task).getBounds();
@@ -340,51 +344,55 @@
 
         // Vertical thin letterbox disabled without Task
         doReturn(null).when(mActivity).getTask();
-        assertFalse(mController.isHorizontalThinLetterboxed());
+        assertFalse(reachabilityOverrides.isHorizontalThinLetterboxed());
         // Assign a Task for the Activity
         doReturn(task).when(mActivity).getTask();
 
         // (task.height() - act.height()) / 2  = 5 < 10
         doReturn(new Rect(5, 5, 95, 95)).when(mActivity).getBounds();
-        assertTrue(mController.isHorizontalThinLetterboxed());
+        assertTrue(reachabilityOverrides.isHorizontalThinLetterboxed());
 
         // (task.height() - act.height()) / 2  = 10 = 10
         doReturn(new Rect(10, 10, 90, 90)).when(mActivity).getBounds();
-        assertTrue(mController.isHorizontalThinLetterboxed());
+        assertTrue(reachabilityOverrides.isHorizontalThinLetterboxed());
 
         // (task.height() - act.height()) / 2  = 11 > 10
         doReturn(new Rect(11, 11, 89, 89)).when(mActivity).getBounds();
-        assertFalse(mController.isHorizontalThinLetterboxed());
+        assertFalse(reachabilityOverrides.isHorizontalThinLetterboxed());
     }
 
     @Test
     @EnableFlags(Flags.FLAG_DISABLE_THIN_LETTERBOXING_POLICY)
     public void testAllowReachabilityForThinLetterboxWithFlagEnabled() {
-        spyOn(mController);
-        doReturn(true).when(mController).isVerticalThinLetterboxed();
-        assertFalse(mController.allowVerticalReachabilityForThinLetterbox());
-        doReturn(true).when(mController).isHorizontalThinLetterboxed();
-        assertFalse(mController.allowHorizontalReachabilityForThinLetterbox());
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivity.mAppCompatController.getAppCompatReachabilityOverrides();
+        spyOn(reachabilityOverrides);
+        doReturn(true).when(reachabilityOverrides).isVerticalThinLetterboxed();
+        assertFalse(reachabilityOverrides.allowVerticalReachabilityForThinLetterbox());
+        doReturn(true).when(reachabilityOverrides).isHorizontalThinLetterboxed();
+        assertFalse(reachabilityOverrides.allowHorizontalReachabilityForThinLetterbox());
 
-        doReturn(false).when(mController).isVerticalThinLetterboxed();
-        assertTrue(mController.allowVerticalReachabilityForThinLetterbox());
-        doReturn(false).when(mController).isHorizontalThinLetterboxed();
-        assertTrue(mController.allowHorizontalReachabilityForThinLetterbox());
+        doReturn(false).when(reachabilityOverrides).isVerticalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowVerticalReachabilityForThinLetterbox());
+        doReturn(false).when(reachabilityOverrides).isHorizontalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowHorizontalReachabilityForThinLetterbox());
     }
 
     @Test
     @DisableFlags(Flags.FLAG_DISABLE_THIN_LETTERBOXING_POLICY)
     public void testAllowReachabilityForThinLetterboxWithFlagDisabled() {
-        spyOn(mController);
-        doReturn(true).when(mController).isVerticalThinLetterboxed();
-        assertTrue(mController.allowVerticalReachabilityForThinLetterbox());
-        doReturn(true).when(mController).isHorizontalThinLetterboxed();
-        assertTrue(mController.allowHorizontalReachabilityForThinLetterbox());
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivity.mAppCompatController.getAppCompatReachabilityOverrides();
+        spyOn(reachabilityOverrides);
+        doReturn(true).when(reachabilityOverrides).isVerticalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowVerticalReachabilityForThinLetterbox());
+        doReturn(true).when(reachabilityOverrides).isHorizontalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowHorizontalReachabilityForThinLetterbox());
 
-        doReturn(false).when(mController).isVerticalThinLetterboxed();
-        assertTrue(mController.allowVerticalReachabilityForThinLetterbox());
-        doReturn(false).when(mController).isHorizontalThinLetterboxed();
-        assertTrue(mController.allowHorizontalReachabilityForThinLetterbox());
+        doReturn(false).when(reachabilityOverrides).isVerticalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowVerticalReachabilityForThinLetterbox());
+        doReturn(false).when(reachabilityOverrides).isHorizontalThinLetterboxed();
+        assertTrue(reachabilityOverrides.allowHorizontalReachabilityForThinLetterbox());
     }
 
     @Test
diff --git a/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java b/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
index ed93a8c..7dc3b07 100644
--- a/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/SizeCompatTests.java
@@ -3431,9 +3431,10 @@
         mActivity.getWindowConfiguration().setBounds(null);
 
         setUpAllowThinLetterboxed(/* thinLetterboxAllowed */ false);
-
-        assertFalse(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
-        assertFalse(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivity.mAppCompatController.getAppCompatReachabilityOverrides();
+        assertFalse(reachabilityOverrides.isVerticalReachabilityEnabled());
+        assertFalse(reachabilityOverrides.isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3456,7 +3457,8 @@
         assertEquals(WINDOWING_MODE_MULTI_WINDOW, mActivity.getWindowingMode());
 
         // Horizontal reachability is disabled because the app is in split screen.
-        assertFalse(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        assertFalse(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3479,7 +3481,8 @@
         assertEquals(WINDOWING_MODE_MULTI_WINDOW, mActivity.getWindowingMode());
 
         // Vertical reachability is disabled because the app is in split screen.
-        assertFalse(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
+        assertFalse(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isVerticalReachabilityEnabled());
     }
 
     @Test
@@ -3501,7 +3504,8 @@
         // Vertical reachability is disabled because the app does not match parent width
         assertNotEquals(mActivity.getScreenResolvedBounds().width(),
                 mActivity.mDisplayContent.getBounds().width());
-        assertFalse(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
+        assertFalse(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isVerticalReachabilityEnabled());
     }
 
     @Test
@@ -3518,7 +3522,8 @@
         assertEquals(new Rect(0, 0, 0, 0), mActivity.getBounds());
 
         // Vertical reachability is still enabled as resolved bounds is not empty
-        assertTrue(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isVerticalReachabilityEnabled());
     }
 
     @Test
@@ -3535,7 +3540,8 @@
         assertEquals(new Rect(0, 0, 0, 0), mActivity.getBounds());
 
         // Horizontal reachability is still enabled as resolved bounds is not empty
-        assertTrue(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3549,7 +3555,8 @@
         prepareMinAspectRatio(mActivity, OVERRIDE_MIN_ASPECT_RATIO_LARGE_VALUE,
                 SCREEN_ORIENTATION_PORTRAIT);
 
-        assertTrue(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3563,7 +3570,8 @@
         prepareMinAspectRatio(mActivity, OVERRIDE_MIN_ASPECT_RATIO_LARGE_VALUE,
                 SCREEN_ORIENTATION_LANDSCAPE);
 
-        assertTrue(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isVerticalReachabilityEnabled());
     }
 
     @Test
@@ -3585,7 +3593,8 @@
         // Horizontal reachability is disabled because the app does not match parent height
         assertNotEquals(mActivity.getScreenResolvedBounds().height(),
                 mActivity.mDisplayContent.getBounds().height());
-        assertFalse(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        assertFalse(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3607,7 +3616,8 @@
         // Horizontal reachability is enabled because the app matches parent height
         assertEquals(mActivity.getScreenResolvedBounds().height(),
                 mActivity.mDisplayContent.getBounds().height());
-        assertTrue(mActivity.mLetterboxUiController.isHorizontalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isHorizontalReachabilityEnabled());
     }
 
     @Test
@@ -3629,7 +3639,8 @@
         // Vertical reachability is enabled because the app matches parent width
         assertEquals(mActivity.getScreenResolvedBounds().width(),
                 mActivity.mDisplayContent.getBounds().width());
-        assertTrue(mActivity.mLetterboxUiController.isVerticalReachabilityEnabled());
+        assertTrue(mActivity.mAppCompatController.getAppCompatReachabilityOverrides()
+                .isVerticalReachabilityEnabled());
     }
 
     @Test
@@ -4809,10 +4820,12 @@
     }
 
     private void setUpAllowThinLetterboxed(boolean thinLetterboxAllowed) {
-        spyOn(mActivity.mLetterboxUiController);
-        doReturn(thinLetterboxAllowed).when(mActivity.mLetterboxUiController)
+        final AppCompatReachabilityOverrides reachabilityOverrides =
+                mActivity.mAppCompatController.getAppCompatReachabilityOverrides();
+        spyOn(reachabilityOverrides);
+        doReturn(thinLetterboxAllowed).when(reachabilityOverrides)
                 .allowVerticalReachabilityForThinLetterbox();
-        doReturn(thinLetterboxAllowed).when(mActivity.mLetterboxUiController)
+        doReturn(thinLetterboxAllowed).when(reachabilityOverrides)
                 .allowHorizontalReachabilityForThinLetterbox();
     }