public boolean addListener(EventListener listener) { if (!listeners.contains(listener, true)) { listeners.add(listener); return true; } return false; }
/** * Adds a listener that is only notified during the capture phase. * * @see #fire(Event) */ public boolean addCaptureListener(EventListener listener) { if (!captureListeners.contains(listener, true)) captureListeners.add(listener); return true; }