Update placement of the nav bar in persistent taskbar for 3 button nav

Implemented nav bar placement update to be located opposite to the
bubble bar.
When bubble bar is moved to the other side of the bar, 3 button nav will
swap sides (without animation).
If taskbar has to be repositioned it does that with the animation.

Test: TaskbarViewControllerTest
Bug: 346381754
Flag: com.android.wm.shell.enable_bubble_bar
Change-Id: Id031706183c60cbd9c67537b01530acb43bae614

quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java

@@ -118,6 +118,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
     private Optional<BubbleStashedHandleViewController> mBubbleStashedHandleViewController;
     private BubblePinController mBubblePinController;
     private BubbleCreator mBubbleCreator;
+    private BubbleBarLocationListener mBubbleBarLocationListener;
 
     // Cache last sent top coordinate to avoid sending duplicate updates to shell
     private int mLastSentBubbleBarTop;
@@ -176,6 +177,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
 
     /** Initializes controllers. */
     public void init(BubbleControllers bubbleControllers,
+            BubbleBarLocationListener bubbleBarLocationListener,
             ImeVisibilityChecker imeVisibilityChecker) {
         mImeVisibilityChecker = imeVisibilityChecker;
         mBubbleBarViewController = bubbleControllers.bubbleBarViewController;
@@ -183,6 +185,7 @@ public class BubbleBarController extends IBubblesListener.Stub {
         mBubbleStashedHandleViewController = bubbleControllers.bubbleStashedHandleViewController;
         mBubblePinController = bubbleControllers.bubblePinController;
         mBubbleCreator = bubbleControllers.bubbleCreator;
+        mBubbleBarLocationListener = bubbleBarLocationListener;
 
         bubbleControllers.runAfterInit(() -> {
             mBubbleBarViewController.setHiddenForBubbles(
@@ -488,12 +491,16 @@ public class BubbleBarController extends IBubblesListener.Stub {
     private void updateBubbleBarLocationInternal(BubbleBarLocation location) {
         mBubbleBarViewController.setBubbleBarLocation(location);
         mBubbleStashController.setBubbleBarLocation(location);
+        mBubbleBarLocationListener.onBubbleBarLocationUpdated(location);
     }
 
     @Override
     public void animateBubbleBarLocation(BubbleBarLocation bubbleBarLocation) {
         MAIN_EXECUTOR.execute(
-                () -> mBubbleBarViewController.animateBubbleBarLocation(bubbleBarLocation));
+                () -> {
+                    mBubbleBarViewController.animateBubbleBarLocation(bubbleBarLocation);
+                    mBubbleBarLocationListener.onBubbleBarLocationAnimated(bubbleBarLocation);
+                });
     }
 
     /** Notifies WMShell to show the expanded view. */
@@ -518,4 +525,14 @@ public class BubbleBarController extends IBubblesListener.Stub {
         /** Whether the IME is visible. */
         boolean isImeVisible();
     }
+
+    /** Listener of {@link BubbleBarLocation} updates. */
+    public interface BubbleBarLocationListener {
+
+        /** Called when {@link BubbleBarLocation} is animated, but change is not yet final. */
+        void onBubbleBarLocationAnimated(BubbleBarLocation location);
+
+        /** Called when {@link BubbleBarLocation} is updated permanently. */
+        void onBubbleBarLocationUpdated(BubbleBarLocation location);
+    }
 }