import { IEmitUserInteraction } from '../containers/UIKit/interfaces'; import { ICommand } from '../definitions/ICommand'; import log from './log'; type TEventEmitterEmmitArgs = | { rid: string } | { server: string } | { message: string } | { method: string } | { invalid: boolean } | { force: boolean } | { hasBiometry: boolean } | { event: string | ICommand } | { cancel: () => void } | { submit: (param: string) => void } | IEmitUserInteraction; class EventEmitter { private events: { [key: string]: any }; constructor() { this.events = {}; } addEventListener(event: string, listener: Function) { if (typeof this.events[event] !== 'object') { this.events[event] = []; } this.events[event].push(listener); return listener; } removeListener(event: string, listener: Function) { if (typeof this.events[event] === 'object') { const idx = this.events[event].indexOf(listener); if (idx > -1) { this.events[event].splice(idx, 1); } if (this.events[event].length === 0) { delete this.events[event]; } } } emit(event: string, ...args: TEventEmitterEmmitArgs[]) { if (typeof this.events[event] === 'object') { this.events[event].forEach((listener: Function) => { try { listener.apply(this, args); } catch (e) { log(e); } }); } } } const events = new EventEmitter(); export default events;