all files / src/ event.ts

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/**
 * Created by thinhth2 on 5/26/2017.
 */
 
export class EventManager {
 
  events = {};
  onceList = [];
 
  emit(name, ...data) {
    let events = this.events[name];
    if (!events) return;
 
    for (let event of events) {
      event.apply(null, data);
      if (this.onceList.indexOf(name) >= 0) {
        this.unregister(name);
      }
    }
  }
 
  register(name, callback, replace=false) {
    if (!this.events[name] || replace) {
      this.events[name] = [];
    }
 
    this.events[name].push(callback);
  }
 
  registerOnce(name, callback, replace=false) {
    this.register(name, callback, replace);
    if (this.onceList.indexOf(name) < 0) {
      this.onceList.push(name);
    }
  }
 
  unregister(name) {
    this.events[name] = [];
  }
 
  unregisterList(names) {
    for (let name of names) {
      this.unregister(name);
    }
  }
 
  unregisterCallback(name, callback) {
    let events = this.events[name];
    Eif (events) {
      for (let i = 0; i < events.length; i++) {
        let event = events[i]
        Eif (event === callback) {
          events.splice(i, 1);
          break;
        }
      }
    }
  }
 
  unregisterAll() {
    this.events = {};
    this.onceList = [];
  }
}