@sendbird/calls-react-native/lib/module/libs/JSEventEmitter.js

Sendbird Calls SDK for React Native: Empower React Native apps with seamless audio, video, and group calling. Build interactive communication easily.

function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { Logger } from '../utils/logger';
let val = 0;
function createUniqueKey() {
  return val++;
}
export default class JSEventEmitter {
  constructor() {
    _defineProperty(this, "eventPool", {});
  }
  getListenerPool(event) {
    if (!this.eventPool[event]) this.eventPool[event] = {};
    return this.eventPool[event];
  }
  addListener(event, listener) {
    const uniqKey = createUniqueKey();
    const listenerPool = this.getListenerPool(event);
    listenerPool[uniqKey] = listener;
    return () => {
      delete listenerPool[uniqKey];
    };
  }
  emit(event, ...args) {
    setTimeout(() => {
      const listenerPool = this.getListenerPool(event);
      const listeners = Object.values(listenerPool);
      listeners.forEach(listener => {
        try {
          listener(...args);
        } catch (e) {
          Logger.warn('[JSEventEmitter]', e);
        }
      });
    }, 0);
  }
}
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