public void setDropupAuto(final boolean dropupAuto) {
        if (!dropupAuto)
            attrMixin.setAttribute(DROPUP_AUTO, Boolean.toString(false));
        else
            attrMixin.removeAttribute(DROPUP_AUTO);
    }
public void setDropupAuto ( final boolean dropupAuto ) { if ( ! dropupAuto ) attrMixin . setAttribute ( DROPUP_AUTO , Boolean . toString ( false ) ) ; else attrMixin . removeAttribute ( DROPUP_AUTO ) ; }
Checks to see which has more room, above or below.
If the drop-up has enough room to fully open normally,
but there is more room above, the drop-up still opens
normally. Otherwise, it becomes a drop-up.
If dropupAuto is set to <code>false</code>, drop-ups
must be called manually.<br>
<br>
Defaults to <code>true</code>.

@param dropupAuto