Class: EventDispatcher

Methods

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_triggerListeners()

Handles the logic of triggering listeners

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addEventListener(type, callback [, thisObject] [, useCapture])

Adds an event listener on this object

Parameters:

Name	Type	Argument	Description
type	string		The event type, or multiple types separated by spaces
callback	function		The callback to call when the event fires
thisObject	object	<optional>	The object to use as "this" when firing the callback
useCapture	bool	<optional>	If true, fires the callback on the capture phase, as opposed to bubble phase

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dispatchEvent(event)

Fires an event on this object

Parameters:

Name	Type	Description
event	string | WPGMZA.Event	Either the event type as a string, or an instance of WPGMZA.Event

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hasEventListener(type)

Test for listeners of type on this object

Parameters:

Name	Type	Description
type	string	The event type to test for

Returns:

True if this object has listeners bound for the specified type

Type

bool

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off()

Alias for removeEventListener

See:

• WPGMZA.EventDispatcher#removeEventListener

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on()

Alias for addEventListener

See:

• WPGMZA.EventDispatcher#addEventListener

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removeEventListener(type [, listener] [, thisObject] [, useCapture])

Removes event listeners from this object

Parameters:

Name	Type	Argument	Description
type	string		The event type to remove listeners from
listener	function	<optional>	The function to remove. If omitted, all listeners will be removed
thisObject	object	<optional>	Use the parameter to remove listeners bound with the same thisObject
useCapture	bool	<optional>	Remove the capture phase event listener. Otherwise, the bubble phase event listener will be removed.

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trigger()

Alias for removeEventListener

See:

• WPGMZA.EventDispatcher#removeEventListener