quickTip = new QuickTip(this);
}
if (GXT.isAriaEnabled()) {
setAriaRole("listbox");
SelectionMode mode = getSelectionModel().getSelectionMode();
setAriaState("aria-multiselectable", mode != SelectionMode.SINGLE ? "true" : "false");
setAriaRole("listbox");
}
sinkEvents(Event.ONCLICK | Event.ONDBLCLICK | Event.MOUSEEVENTS | Event.FOCUSEVENTS | Event.ONKEYDOWN);