The EventDispatcher mirrors the functionality of AS3 and EaselJS's EventDispatcher,
but is more robust in terms of inputs for the on() and off() methods.
hasname
[callback]
Checks if the EventDispatcher has a specific listener or any listener for a given event.
If the EventDispatcher has the specified listener.
offname
callback
Remove the event listener
Return this EventDispatcher for chaining calls.
onname
callback
[priority=0]
Add an event listener. The parameters for the listener functions depend on the event.
name
String | Object
The type of event (can be multiple events separated by spaces), or a map of events to handlers
callback
Function | Array*
The callback function when event is fired or an array of callbacks.
[priority=0]
Int
optional
The priority of the event listener. Higher numbers are handled first.
Return this EventDispatcher for chaining calls.
oncename
callback
[priority=0]
Add an event listener but only handle it one time.
name
String | Object
The type of event (can be multiple events separated by spaces), or a map of events to handlers
callback
Function | Array*
The callback function when event is fired or an array of callbacks.
[priority=0]
Int
optional
The priority of the event listener. Higher numbers are handled first.
Return this EventDispatcher for chaining calls.
triggertype
arguments
Dispatch an event
type
String
The type of event to trigger
arguments
Additional parameters for the listener functions.