code: public void setMobile(final boolean mobile) {
          if (mobile)
              attrMixin.setAttribute(MOBILE, Boolean.toString(true));
          else
              attrMixin.removeAttribute(MOBILE);
      }
docs: When set to <code>true</code>, enables the device's native
  menu for select menus.<br>
  <br>
  Defaults to <code>false</code>.
  
  @param mobile