Use nearest region for all the nav buttons in 3-button folded mode

Bug: 230395757
Test: In 3-button folded mode, make sure that the touches that happen between nav buttons go to the nearest button. No regression in other modes.

Change-Id: Icb776a9a4ed4fc31d33dc3267c7053f2b0da0bfc

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

@@ -91,6 +91,7 @@ import com.android.launcher3.anim.AnimatedFloat;
 import com.android.launcher3.taskbar.TaskbarNavButtonController.TaskbarButton;
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory;
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory.NavButtonLayoutter;
+import com.android.launcher3.taskbar.navbutton.NearestTouchFrame;
 import com.android.launcher3.util.DimensionUtils;
 import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
@@ -151,7 +152,7 @@ public class NavbarButtonsViewController implements TaskbarControllers.LoggableT
     private final TaskbarActivityContext mContext;
     private final @Nullable Context mNavigationBarPanelContext;
     private final WindowManagerProxy mWindowManagerProxy;
-    private final FrameLayout mNavButtonsView;
+    private final NearestTouchFrame mNavButtonsView;
     private final LinearLayout mNavButtonContainer;
     // Used for IME+A11Y buttons
     private final ViewGroup mEndContextualContainer;
@@ -208,7 +209,7 @@ public class NavbarButtonsViewController implements TaskbarControllers.LoggableT
     private ImageView mRecentsButton;
 
     public NavbarButtonsViewController(TaskbarActivityContext context,
-            @Nullable Context navigationBarPanelContext, FrameLayout navButtonsView) {
+            @Nullable Context navigationBarPanelContext, NearestTouchFrame navButtonsView) {
         mContext = context;
         mNavigationBarPanelContext = navigationBarPanelContext;
         mWindowManagerProxy = WindowManagerProxy.INSTANCE.get(mContext);
@@ -517,6 +518,10 @@ public class NavbarButtonsViewController implements TaskbarControllers.LoggableT
         return (mState & FLAG_IME_VISIBLE) != 0;
     }
 
+    public boolean isImeRenderingNavButtons() {
+        return mIsImeRenderingNavButtons;
+    }
+
     /**
      * Returns true if the home button is disabled
      */
@@ -1003,6 +1008,8 @@ public class NavbarButtonsViewController implements TaskbarControllers.LoggableT
                 + mOnTaskbarBackgroundNavButtonColorOverride.value);
         pw.println(prefix + "\t\tmOnBackgroundNavButtonColorOverrideMultiplier="
                 + mOnBackgroundNavButtonColorOverrideMultiplier.value);
+
+        mNavButtonsView.dumpLogs(prefix + "\t", pw);
     }
 
     private static String getStateString(int flags) {