Final Class: EventSource

Usage

Typescript Import Format

//To import this class, use the format below.
import {EventSource} from "ojs/ojcore-base";

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Final classes in JET

Classes in JET are generally final and do not support subclassing. At the moment, final is not enforced. However, this will likely change in an upcoming JET release.

Constructor

new EventSource

Methods

handleEvent(eventType, event) : {boolean}

Handle the event

Parameters:

Name	Type	Description
`eventType`	string	event type
`event`	Object	event

Returns:

Returns false if event is cancelled

Type: boolean

Init

Initializes the instance.

off(eventType, eventHandler) : {void}

Detach an event handler.

Application can call this if it no longer wants to be notified of an event that it has attached an handler to using the on method.

Parameters:

Name	Type	Description
`eventType`	string	eventType
`eventHandler`	function(Object)	event handler function

Returns:

Type: void

on(eventType, eventHandler) : {void}

Attach an event handler.

Application can call this if it wants to be notified of an event. It can call the off method to detach the handler when it no longer wants to be notified.

Parameters:

Name	Type	Description
`eventType`	string	eventType
`eventHandler`	function(Object)	event handler function

Returns:

Type: void