https://trixbrix.eu/assets/px/utils/events-604cf888.js

1export const EventEmitter = {
2  on(eventName, callback, options = {}) {
3    if (!this._events) this._events = {};
4    if (!this._events[eventName]) this._events[eventName] = [];
5    this._events[eventName].push(callback);
6    
7    // Handle replay functionality
8    if (options.replay && this._lastValues && this._lastValues[eventName] !== undefined) {
9      queueMicrotask(() => { callback(...this._lastValues[eventName]); });
10    }
11  },
12
13  off(eventName, callback) {
14    if (!this._events || !this._events[eventName]) return;
15    const index = this._events[eventName].indexOf(callback);
16    if (index > -1) {
17      this._events[eventName].splice(index, 1);
18    }
19  },
20
21  _emit(eventName, ...data) {
22    // Store last value for replay functionality
23    if (!this._lastValues) this._lastValues = {};
24    this._lastValues[eventName] = data;
25    
26    if (!this._events || !this._events[eventName]) return;
27    this._events[eventName].forEach(callback => {
28      queueMicrotask(() => { callback(...data); });
29    });
30  },
31};