src/client/events.ts

   1 export class CustomEventManager {
   2   events: Record<string, any[]>;
   3   constructor() {
   4     this.events = {};
   5   }
   6
   7   on(eventName: string, handler: any) {
   8     if(!this.events[eventName]) {
   9       this.events[eventName] = [];
  10     }
  11
  12     this.events[eventName].push(handler);
  13   }
  14
  15   emit(eventName: string, args: any[] = []) {
  16     if(this.events[eventName]) {
  17       this.events[eventName].forEach(h => h.apply(null, args));
  18     }
  19   }
  20 }