call<T extends Event> method
Checks if the listener matches the event. If the event is valid, the callback will be called.
This method will not call the callback if the listener is canceled.
Returns true
if the callback was satisfied.
Listeners that don't match the event count as satisfied.
Implementation
bool call<T extends Event>(T event) {
if (!canceled && validate(event)) {
final data =
(event.data is CallbackDataT ? event.data : event) as CallbackDataT;
final satisfied = callback(data);
if (once) cancel();
onCall?.call(data);
if (satisfied is bool) return satisfied;
return true;
}
return false;
}