45 lines
1.2 KiB
TypeScript
45 lines
1.2 KiB
TypeScript
/**
|
|
* Event Subscriber
|
|
*
|
|
* Copyright (C) 2010-2019 R-T Specialty, LLC.
|
|
*
|
|
* This file is part of liza.
|
|
*
|
|
* liza is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Subscribe to events
|
|
*/
|
|
|
|
import { EventEmitter } from "events";
|
|
|
|
export class EventSubscriber extends EventEmitter
|
|
{
|
|
/**
|
|
* Initialize subscriber
|
|
*
|
|
* @param _emitter - the event emitter
|
|
*/
|
|
constructor(
|
|
private readonly _emitter: EventEmitter
|
|
) {
|
|
super();
|
|
}
|
|
|
|
|
|
subscribe( event_id: string, callback: ( arg: any ) => void ): void
|
|
{
|
|
this._emitter.on( event_id, callback );
|
|
}
|
|
}
|