public boolean removeListener ( ListenerController listenerController ) { if ( listenerController != null && listeners . containsKey ( listenerController ) ) { List < HandlerRegistration > registrations = listeners . get ( listenerController ) ; for ( HandlerRegistration registration : registrations ) { registration . removeHandler ( ) ; } listeners . remove ( listenerController ) ; return true ; } return false ; }
Remove an existing listener controller from this widget . These listeners passively listen to mouse events on the map . They do not interfere with these events .