static CefTouchEvent.EventType getTouchEventType(MouseWheelEvent e) {
    if (!TouchScrollUtil.isTouchScroll(e)) return null;

    if (TouchScrollUtil.isBegin(e)) {
      return CefTouchEvent.EventType.PRESSED;
    }
    else if (TouchScrollUtil.isUpdate(e)) {
      return CefTouchEvent.EventType.MOVED;
    }
    else if (TouchScrollUtil.isEnd(e)) {
      return CefTouchEvent.EventType.RELEASED;
    }

    return CefTouchEvent.EventType.CANCELLED;
  }
static CefTouchEvent.EventType getTouchEventType(MouseWheelEvent e)