* all child components, wrapped in an {@link org.apache.isis.viewer.wicket.model.hints.IsisEnvelopeEvent envelope} event.
*/
public void onEvent(org.apache.wicket.event.IEvent<?> event) {
Object payload = event.getPayload();
if(payload instanceof IsisEventLetterAbstract) {
IsisEventLetterAbstract letter = (IsisEventLetterAbstract)payload;
IsisEnvelopeEvent broadcastEv = new IsisEnvelopeEvent(letter);
send(this, Broadcast.BREADTH, broadcastEv);
}
}