Class: EventDispatcher

Methods

---

addEventListener(p_type, p_callback)

Adds a callback function for a specific type. One and the same function can only be added once for each type. If it is tried to add a function again for a specific type, the method returns without any modification or reaction.

Parameters:

Name	Type	Description
p_type	string
p_callback	function

Source:

• wk/pattern/observer/EventDispatcher.js, line 30

Fires:

• this.event:v_initial_events[p_type]

---

dispatchEvent(p_type, p_detail)

Handles events of type String or Event by invoking all callback functions that have been registered for that type.

Parameters:

Name	Type	Argument	Default	Description
p_type	string | Event
p_detail	Object	<nullable>	null	Detail information passed to the listener

Source:

• wk/pattern/observer/EventDispatcher.js, line 68

---

removeEventListener(p_type, p_callback)

Removes a callback function for a specific type, if it exists.

Parameters:

Name	Type	Description
p_type	string
p_callback	function

Source:

• wk/pattern/observer/EventDispatcher.js, line 49