Method unmark_control

src/services/focus.rs:264–272

(&self, control: &dyn Element, e: &mut MouseEvent)

    }

    fn unmark_control(&self, control: &dyn Element, e: &mut MouseEvent) {
        if control.is_marked() {
            control.unmark();

            if control.mouse_input() {
                control.mouseleave(e);
            }
        }
    }

    fn mark_control(&self, control: &dyn Element, e: &mut MouseEvent) {
        if !control.is_marked() {