import {EventEmitter} from 'parallax/src/events.mjs'

public class | source

EventEmitter

Class-based EventEmitter for managing custom events with pInstance-specific tracking.

Constructor Summary

Public Constructor
public	constructor()

Public Members
public	events: WeakMap<object, Map<string, Set<Function>>> Map to store event listeners by pInstance and event type.

Public Methods
public	emit(pInstance: object, pEventName: string, pData: object) Triggers a specified event on a specific pInstance, invoking all registered listeners.
public	off(pInstance: object, pEventName: string, pListener: Function) Unregisters a listener for a specified event on a specific pInstance.
public	on(pInstance: object, pEventName: string, pListener: Function) Registers a listener for a specified event on a specific pInstance.

Map to store event listeners by pInstance and event type.

Triggers a specified event on a specific pInstance, invoking all registered listeners.

Name	Type	Attribute	Description
pInstance	object		The instance to trigger the event on.
pEventName	string		The name of the event.
pData	object	optional	The data to pass to the event listeners.

Unregisters a listener for a specified event on a specific pInstance.

Name	Type	Attribute	Description
pInstance	object		The instance to disassociate the event from.
pEventName	string		The name of the event.
pListener	Function		The function to remove from the event.

Registers a listener for a specified event on a specific pInstance.

Name	Type	Attribute	Description
pInstance	object		The instance to associate the event with.
pEventName	string		The name of the event.
pListener	Function		The function to invoke when the event is triggered.