Resize navbar on window focus change. Fix resizing glitches.

app/src/common/shared/org/mozilla/vrbrowser/ui/widgets/NavigationBarWidget.java

@@ -412,6 +412,7 @@ public void attachToWindow(@NonNull WindowWidget aWindow) {
             updateServoButton();
             handleSessionState();
         }
+        handleWindowResize();
     }
 
     @Override
@@ -830,12 +831,14 @@ public void onFullScreen(GeckoSession session, boolean aFullScreen) {
     // WidgetManagerDelegate.UpdateListener
     @Override
     public void onWidgetUpdate(Widget aWidget) {
-        if (aWidget != mAttachedWindow || mIsResizing) {
-            return;
+        if (aWidget == mAttachedWindow && !mIsResizing) {
+            handleWindowResize();
         }
+    }
 
+    private void handleWindowResize() {
         // Browser window may have been resized, adjust the navigation bar
-        float targetWidth = aWidget.getPlacement().worldWidth;
+        float targetWidth = mAttachedWindow.getPlacement().worldWidth;
         float defaultWidth = WidgetPlacement.floatDimension(getContext(), R.dimen.window_world_width);
         targetWidth = Math.max(defaultWidth, targetWidth);
         targetWidth = Math.min(targetWidth, defaultWidth * 1.5f);
@@ -844,6 +847,7 @@ public void onWidgetUpdate(Widget aWidget) {
         mWidgetPlacement.worldWidth = targetWidth;
         mWidgetPlacement.width = (int) (WidgetPlacement.dpDimension(getContext(), R.dimen.navigation_bar_width) * ratio);
         mWidgetManager.updateWidget(this);
+        postInvalidate();
     }
 
     // SessionStack.SessionChangeListener

app/src/oculusvr/cpp/DeviceDelegateOculusVR.cpp

@@ -261,6 +261,7 @@ class OculusLayerSurface: public OculusLayerBase<T, U> {
   vrb::RenderContextWeak contextWeak;
   JNIEnv * jniEnv = nullptr;
   OculusLayer::BindDelegate bindDelegate;
+  bool resizing = false;
 
   void Init(JNIEnv * aEnv, vrb::RenderContextPtr& aContext) override {
     this->jniEnv = aEnv;
@@ -291,6 +292,7 @@ class OculusLayerSurface: public OculusLayerBase<T, U> {
     this->layer->SetSurface(newSurface);
 
     SurfaceChangedTargetWeakPtr weakTarget = this->surfaceChangedTarget;
+    this->resizing = true;
     this->layer->NotifySurfaceChanged(VRLayer::SurfaceChange::Create, [=]() {
       SurfaceChangedTargetPtr target = weakTarget.lock();
       if (target && target->layer) {
@@ -310,6 +312,7 @@ class OculusLayerSurface: public OculusLayerBase<T, U> {
     this->surface = newSurface;
     this->fbo = newFBO;
     this->composited = true;
+    this->resizing = false;
   }
 
   void Destroy() override {
@@ -431,7 +434,7 @@ class OculusLayerQuad: public OculusLayerSurface<VRLayerQuadPtr, ovrLayerProject
       ovrLayer.Textures[i].TextureRect.height = textureRect.mHeight;
       clip = clip || !textureRect.IsDefault();
     }
-    SetClipEnabled(clip);
+    SetClipEnabled(clip || resizing);
 
     ovrLayer.HeadPose = aTracking.HeadPose;
   }
@@ -484,6 +487,7 @@ class OculusLayerCylinder: public OculusLayerSurface<VRLayerCylinderPtr, ovrLaye
       ovrLayer.Textures[i].TextureRect.width = 1.0f;
       ovrLayer.Textures[i].TextureRect.height = 1.0f;
     }
+    SetClipEnabled(resizing);
   }
 };