class fwt::EventListeners
sys::Obj fwt::EventListeners
@Js
EventListeners manages a list of event callback functions.
- add
-
Add a listener callback function
- fire
-
Fire the event to all the listeners
- isEmpty
-
Bool isEmpty()
Return if
size
is zero. - list
-
|Event|[] list()
Get the list of registered callback functions.
- remove
-
Remove a listener callback function
- size
-
Int size()
Return number of registered callback functions.