deregister an existing eventlistener that responds to event concode_field_sep Map<Event,Set<EventListener>> listeners concode_field_sep void trigger concode_elem_sep void trigger concode_elem_sep void trigger concode_elem_sep void addListener
void function ( Event arg0 , EventListener arg1 ) { if ( ! listeners . containsKey ( arg0 ) ) { return ; } final Set < EventListener > loc0 = listeners . get ( arg0 ) ; if ( loc0 . contains ( arg1 ) ) { loc0 . remove ( arg1 ) ; } }