A class that provides a custom event channel.
You may bind a callback to an event with
on or remove with
trigger-ing an event fires all callbacks in succession.
Remove one or many callbacks. If
context is null, removes all
callbacks with that function. If
callback is null, removes all
callbacks for the event. If
name is null, removes all bound
callbacks for all events.
Bind an event to a
callback function. Passing
"all" will bind
the callback to all events fired.
Bind an event to only be triggered a single time. After the first time the callback is invoked, its listener will be removed. If multiple events are passed in using the space-separated syntax, the handler will fire once for each event, not once for a combination of all events.
Trigger one or many events, firing all bound callbacks. Callbacks are
passed the same arguments as
trigger is, apart from the event name
(unless you're listening on
"all", which will cause your callback to
receive the true name of the event as the first argument).
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