peerpigeon/src/EventEmitter.js

WebRTC-based peer-to-peer mesh networking library with intelligent routing and signaling server

import DebugLogger from './DebugLogger.js';
export class EventEmitter {
  constructor() {
    this.eventListeners = {};
  }

  addEventListener(event, callback) {
    if (!this.eventListeners[event]) {
      this.eventListeners[event] = [];
    }
    this.eventListeners[event].push(callback);
  }

  removeEventListener(event, callback) {
    if (this.eventListeners[event]) {
      const index = this.eventListeners[event].indexOf(callback);
      if (index > -1) {
        this.eventListeners[event].splice(index, 1);
      }
    }
  }

  emit(event, data) {
    if (this.eventListeners[event]) {
      this.eventListeners[event].forEach(callback => callback(data));
    }
  }
}