Class EventsT
- protocol ooodev.events.events_t.EventsT[source]
Protocol Class for Events.
Classes that implement this protocol must have the following methods / attributes:
- add_event_observers(*args)[source]
Adds observers that gets their
trigger
method called when this classtrigger
method is called.- Parameters:
args (EventObserver) – One or more observers to add.
- Return type:
None
Note
Observers are removed automatically when they are out of scope.
- remove_event_observer(observer)[source]
Removes an observer
- Parameters:
observer (EventObserver) – One or more observers to add.
- Returns:
True
if observer has been removed; Otherwise,False
.- Return type:
bool
- subscribe_event(event_name, callback)[source]
Add an event listener to current instance.
- Parameters:
event_name (str) – Event Name.
callback (EventCallback) – Callback of the event listener.
- Return type:
None
- trigger_event(event_name, event_args)[source]
Trigger an event on current instance.
- Parameters:
event_name (str) – Event Name.
event_args (EventArgsT) – Event Args.
- Return type:
None
- unsubscribe_event(event_name, callback)[source]
Remove an event listener from current instance.
- Parameters:
event_name (str) – Event Name.
callback (EventCallback) – Callback of the event listener.
- Return type:
None
- property event_observer: EventObserver
Gets/Sets The Event Observer for this instance.
- Return type: