diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index e47640b..3196bfb 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -62,6 +62,7 @@
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.statemanager.StatefulActivity;
+import com.android.launcher3.taskbar.TaskbarNavButtonController.TaskbarNavButtonCallbacks;
 import com.android.launcher3.taskbar.unfold.NonDestroyableScopedUnfoldTransitionProgressProvider;
 import com.android.launcher3.uioverrides.QuickstepLauncher;
 import com.android.launcher3.util.DisplayController;
@@ -70,7 +71,6 @@
 import com.android.quickstep.AllAppsActionManager;
 import com.android.quickstep.RecentsActivity;
 import com.android.quickstep.SystemUiProxy;
-import com.android.quickstep.TouchInteractionService;
 import com.android.quickstep.util.AssistUtils;
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.unfold.UnfoldTransitionProgressProvider;
@@ -209,15 +209,18 @@
 
     @SuppressLint("WrongConstant")
     public TaskbarManager(
-            TouchInteractionService service, AllAppsActionManager allAppsActionManager) {
+            Context context,
+            AllAppsActionManager allAppsActionManager,
+            TaskbarNavButtonCallbacks navCallbacks) {
+
         Display display =
-                service.getSystemService(DisplayManager.class).getDisplay(DEFAULT_DISPLAY);
-        mContext = service.createWindowContext(display,
+                context.getSystemService(DisplayManager.class).getDisplay(DEFAULT_DISPLAY);
+        mContext = context.createWindowContext(display,
                 ENABLE_TASKBAR_NAVBAR_UNIFICATION ? TYPE_NAVIGATION_BAR : TYPE_NAVIGATION_BAR_PANEL,
                 null);
         mAllAppsActionManager = allAppsActionManager;
         mNavigationBarPanelContext = ENABLE_TASKBAR_NAVBAR_UNIFICATION
-                ? service.createWindowContext(display, TYPE_NAVIGATION_BAR_PANEL, null)
+                ? context.createWindowContext(display, TYPE_NAVIGATION_BAR_PANEL, null)
                 : null;
         if (enableTaskbarNoRecreate()) {
             mWindowManager = mContext.getSystemService(WindowManager.class);
@@ -234,8 +237,11 @@
                 }
             };
         }
-        mNavButtonController = new TaskbarNavButtonController(service,
-                SystemUiProxy.INSTANCE.get(mContext), new Handler(),
+        mNavButtonController = new TaskbarNavButtonController(
+                context,
+                navCallbacks,
+                SystemUiProxy.INSTANCE.get(mContext),
+                new Handler(),
                 AssistUtils.newInstance(mContext));
         mComponentCallbacks = new ComponentCallbacks() {
             private Configuration mOldConfig = mContext.getResources().getConfiguration();
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
index 03f55ca..ade4649 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarNavButtonController.java
@@ -31,6 +31,7 @@
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_SCREEN_PINNING;
 
+import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
 import android.util.Log;
@@ -47,10 +48,8 @@
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.quickstep.LauncherActivityInterface;
-import com.android.quickstep.OverviewCommandHelper;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskUtils;
-import com.android.quickstep.TouchInteractionService;
 import com.android.quickstep.util.AssistUtils;
 
 import java.io.PrintWriter;
@@ -106,7 +105,8 @@
     private static final int SCREEN_UNPIN_COMBO = BUTTON_BACK | BUTTON_RECENTS;
     private int mLongPressedButtons = 0;
 
-    private final TouchInteractionService mService;
+    private final Context mContext;
+    private final TaskbarNavButtonCallbacks mCallbacks;
     private final SystemUiProxy mSystemUiProxy;
     private final Handler mHandler;
     private final AssistUtils mAssistUtils;
@@ -114,9 +114,14 @@
 
     private final Runnable mResetLongPress = this::resetScreenUnpin;
 
-    public TaskbarNavButtonController(TouchInteractionService service,
-            SystemUiProxy systemUiProxy, Handler handler, AssistUtils assistUtils) {
-        mService = service;
+    public TaskbarNavButtonController(
+            Context context,
+            TaskbarNavButtonCallbacks callbacks,
+            SystemUiProxy systemUiProxy,
+            Handler handler,
+            AssistUtils assistUtils) {
+        mContext = context;
+        mCallbacks = callbacks;
         mSystemUiProxy = systemUiProxy;
         mHandler = handler;
         mAssistUtils = assistUtils;
@@ -286,7 +291,7 @@
             desktopVisibilityController.onHomeActionTriggered();
         }
 
-        mService.getOverviewCommandHelper().addCommand(OverviewCommandHelper.TYPE_HOME);
+        mCallbacks.onNavigateHome();
     }
 
     private void navigateToOverview() {
@@ -295,7 +300,7 @@
         }
         TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "onOverviewToggle");
         TaskUtils.closeSystemWindowsAsync(CLOSE_SYSTEM_WINDOWS_REASON_RECENTS);
-        mService.getOverviewCommandHelper().addCommand(OverviewCommandHelper.TYPE_TOGGLE);
+        mCallbacks.onToggleOverview();
     }
 
     private void executeBack() {
@@ -310,7 +315,7 @@
         if (longClick) {
             mSystemUiProxy.notifyAccessibilityButtonLongClicked();
         } else {
-            mSystemUiProxy.notifyAccessibilityButtonClicked(mService.getDisplayId());
+            mSystemUiProxy.notifyAccessibilityButtonClicked(mContext.getDisplayId());
         }
     }
 
@@ -333,4 +338,13 @@
     private void showNotifications() {
         mSystemUiProxy.toggleNotificationPanel();
     }
+
+    /** Callbacks for navigation buttons on Taskbar. */
+    public interface TaskbarNavButtonCallbacks {
+        /** Callback invoked when the home button is pressed. */
+        default void onNavigateHome() {}
+
+        /** Callback invoked when the overview button is pressed. */
+        default void onToggleOverview() {}
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index a842b51..832f4e1 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -94,6 +94,7 @@
 import com.android.launcher3.statemanager.StatefulActivity;
 import com.android.launcher3.taskbar.TaskbarActivityContext;
 import com.android.launcher3.taskbar.TaskbarManager;
+import com.android.launcher3.taskbar.TaskbarNavButtonController.TaskbarNavButtonCallbacks;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.ResourceUtils;
 import com.android.launcher3.testing.shared.TestProtocol;
@@ -470,6 +471,18 @@
 
     private final ScreenOnTracker.ScreenOnListener mScreenOnListener = this::onScreenOnChanged;
 
+    private final TaskbarNavButtonCallbacks mNavCallbacks = new TaskbarNavButtonCallbacks() {
+        @Override
+        public void onNavigateHome() {
+            mOverviewCommandHelper.addCommand(OverviewCommandHelper.TYPE_HOME);
+        }
+
+        @Override
+        public void onToggleOverview() {
+            mOverviewCommandHelper.addCommand(OverviewCommandHelper.TYPE_TOGGLE);
+        }
+    };
+
     private ActivityManagerWrapper mAM;
     private OverviewCommandHelper mOverviewCommandHelper;
     private OverviewComponentObserver mOverviewComponentObserver;
@@ -500,7 +513,7 @@
         mDeviceState = new RecentsAnimationDeviceState(this, true);
         mAllAppsActionManager = new AllAppsActionManager(
                 this, UI_HELPER_EXECUTOR, this::createAllAppsPendingIntent);
-        mTaskbarManager = new TaskbarManager(this, mAllAppsActionManager);
+        mTaskbarManager = new TaskbarManager(this, mAllAppsActionManager, mNavCallbacks);
         mRotationTouchHelper = mDeviceState.getRotationTouchHelper();
         mInputConsumer = InputConsumerController.getRecentsAnimationInputConsumer();
 
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
index 58be345..0f06d98 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarNavButtonControllerTest.java
@@ -12,10 +12,10 @@
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_IME_SWITCH;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.BUTTON_RECENTS;
 import static com.android.launcher3.taskbar.TaskbarNavButtonController.SCREEN_PIN_LONG_PRESS_THRESHOLD;
-import static com.android.quickstep.OverviewCommandHelper.TYPE_HOME;
-import static com.android.quickstep.OverviewCommandHelper.TYPE_TOGGLE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_SCREEN_PINNING;
 
+import static com.google.common.truth.Truth.assertThat;
+
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.doReturn;
@@ -31,7 +31,7 @@
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.launcher3.logging.StatsLogManager;
-import com.android.quickstep.OverviewCommandHelper;
+import com.android.launcher3.taskbar.TaskbarNavButtonController.TaskbarNavButtonCallbacks;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TouchInteractionService;
 import com.android.quickstep.util.AssistUtils;
@@ -52,8 +52,6 @@
     @Mock
     TouchInteractionService mockService;
     @Mock
-    OverviewCommandHelper mockCommandHelper;
-    @Mock
     Handler mockHandler;
     @Mock
     AssistUtils mockAssistUtils;
@@ -68,13 +66,26 @@
     @Mock
     View mockView;
 
+    private int mHomePressCount;
+    private int mOverviewToggleCount;
+    private final TaskbarNavButtonCallbacks mCallbacks = new TaskbarNavButtonCallbacks() {
+        @Override
+        public void onNavigateHome() {
+            mHomePressCount++;
+        }
+
+        @Override
+        public void onToggleOverview() {
+            mOverviewToggleCount++;
+        }
+    };
+
     private TaskbarNavButtonController mNavButtonController;
 
     @Before
     public void setup() {
         MockitoAnnotations.initMocks(this);
         when(mockService.getDisplayId()).thenReturn(DISPLAY_ID);
-        when(mockService.getOverviewCommandHelper()).thenReturn(mockCommandHelper);
         when(mockService.getApplicationContext())
                 .thenReturn(InstrumentationRegistry.getInstrumentation().getTargetContext()
                         .getApplicationContext());
@@ -82,8 +93,12 @@
         when(mockTaskbarControllers.getTaskbarActivityContext())
                 .thenReturn(mockTaskbarActivityContext);
         doReturn(mockStatsLogManager).when(mockTaskbarActivityContext).getStatsLogManager();
-        mNavButtonController = new TaskbarNavButtonController(mockService,
-                mockSystemUiProxy, mockHandler, mockAssistUtils);
+        mNavButtonController = new TaskbarNavButtonController(
+                mockService,
+                mCallbacks,
+                mockSystemUiProxy,
+                mockHandler,
+                mockAssistUtils);
     }
 
     @Test
@@ -154,20 +169,20 @@
     @Test
     public void testPressHome() {
         mNavButtonController.onButtonClick(BUTTON_HOME, mockView);
-        verify(mockCommandHelper, times(1)).addCommand(TYPE_HOME);
+        assertThat(mHomePressCount).isEqualTo(1);
     }
 
     @Test
     public void testPressRecents() {
         mNavButtonController.onButtonClick(BUTTON_RECENTS, mockView);
-        verify(mockCommandHelper, times(1)).addCommand(TYPE_TOGGLE);
+        assertThat(mOverviewToggleCount).isEqualTo(1);
     }
 
     @Test
-    public void testPressRecentsWithScreenPinned() {
+    public void testPressRecentsWithScreenPinned_noNavigationToOverview() {
         mNavButtonController.updateSysuiFlags(SYSUI_STATE_SCREEN_PINNING);
         mNavButtonController.onButtonClick(BUTTON_RECENTS, mockView);
-        verify(mockCommandHelper, times(0)).addCommand(TYPE_TOGGLE);
+        assertThat(mOverviewToggleCount).isEqualTo(0);
     }
 
     @Test