Adds an unfiltered handler to receive events of this type from all sources.
It is rare to call this method directly. More typically an Event
subclass will provide a static register method, or a widget
will accept handlers directly.
Adds a handler to receive events of this type from the given source.
It is rare to call this method directly. More typically a Event
subclass will provide a static register method, or a widget
will accept handlers directly.
Fires the event from no source. Only unfiltered handlers will receive it.
Any exceptions thrown by handlers will be bundled into a
UmbrellaException and then re-thrown after all handlers have
completed. An exception thrown by a handler will not prevent other handlers
from executing.
Fires the given event to the handlers listening to the event's type.
Any exceptions thrown by handlers will be bundled into a
UmbrellaException and then re-thrown after all handlers have
completed. An exception thrown by a handler will not prevent other handlers
from executing.
Fires the given event to the handlers listening to the event's type.
Any exceptions thrown by handlers will be bundled into a
UmbrellaException and then re-thrown after all handlers have
completed. An exception thrown by a handler will not prevent other handlers
from executing.
getHandlerCount
.