public override void GrabFocus()
            {
                if (IsGrabbingFocus)
                {
                    return;
                }

                IsGrabbingFocus = true;
                GtkView.GrabFocus();

                if (nsView.Window != null)
                {
                    FocusEditor();
                }
                else
                {
                    nativeViewNeedsFocus = true;
                }
            }
 public override void GrabFocus()
 => GtkView.GrabFocus();