Disable pinning popup when transient taskbar is disabled

On freeform displays where taskbar is always pinned, toggling "Always
show taskbar" option is no-op, as the taskbar won't transition to
transient taskbar.
Left a TODO to reevaluate behavior once desktop taskbar transient
behavior gets updated.

Bug: 390665752
Flag: com.android.window.flags.enable_desktop_taskbar_on_freeform_displays
Test: Manual.

Change-Id: Icfe7cd26e77de48ab34bfe4932bfedfe21923ef1

quickstep/src/com/android/launcher3/taskbar/TaskbarView.java

@@ -350,26 +350,32 @@ public class TaskbarView extends FrameLayout implements FolderIcon.FolderIconPar
         mIconLongClickListener = mControllerCallbacks.getIconOnLongClickListener();
 
         mAllAppsButtonContainer.setUpCallbacks(callbacks);
-        if (mTaskbarDividerContainer != null
-                && mActivityContext.getTaskbarFeatureEvaluator().getSupportsPinningPopup()) {
-            mTaskbarDividerContainer.setUpCallbacks(callbacks);
-        }
         if (mTaskbarOverflowView != null) {
             mTaskbarOverflowView.setOnClickListener(
                     mControllerCallbacks.getOverflowOnClickListener());
             mTaskbarOverflowView.setOnLongClickListener(
                     mControllerCallbacks.getOverflowOnLongClickListener());
         }
-        if (Flags.showTaskbarPinningPopupFromAnywhere()
-                && mActivityContext.getTaskbarFeatureEvaluator().getSupportsPinningPopup()) {
-            setOnTouchListener(mControllerCallbacks.getTaskbarTouchListener());
-        }
 
         if (Flags.taskbarOverflow()) {
             mMaxNumIcons = calculateMaxNumIcons();
         }
     }
 
+    void updatePinningPopupEventHandlers() {
+        boolean supportsPinningPopup =
+                mActivityContext.getTaskbarFeatureEvaluator().getSupportsPinningPopup();
+        if (mTaskbarDividerContainer != null) {
+            mTaskbarDividerContainer.setUpCallbacks(
+                    supportsPinningPopup ? mControllerCallbacks : null);
+        }
+
+        if (Flags.showTaskbarPinningPopupFromAnywhere()) {
+            setOnTouchListener(
+                    supportsPinningPopup ? mControllerCallbacks.getTaskbarTouchListener() : null);
+        }
+    }
+
     private void removeAndRecycle(View view) {
         removeView(view);
         view.setOnClickListener(null);