setStyleName(CLASSNAME);
DOM.sinkEvents(getElement(), Event.ONKEYDOWN);
DOM.sinkEvents(contentNode, Event.ONSCROLL | Event.TOUCHEVENTS);
contentNode.getStyle().setProperty("position", "relative");
getElement().getStyle().setProperty("overflow", "hidden");
addHandler(new TouchStartHandler() {
public void onTouchStart(TouchStartEvent event) {
getTouchScrollDelegate().onTouchStart(event);
}
}, TouchStartEvent.getType());
}