iframe-proxy | Sunbelt Computer Software

36 lines (33 loc) · 931 Bytes

import eventManager from './eventManager.js';

import wrap from './2.pokemon.js';

export default function compound(...events) {

const callback = events.pop();

if (typeof callback !== 'function') throw new Error('Callback not provided');

const cache = {};

let triggered = 0;

// TODO: cache data

function trigger(event, ...data) {

if (!cache[event].triggered) {

cache[event].triggered = this.singleton ? 'singleton' : true;

triggered += 1;

}

if (triggered >= events.length) {

events.forEach((ev) => {

const e = cache[ev];

// Only reset if not singleton

if (e.triggered !== true) return;

e.triggered = false;

triggered -= 1;

});

wrap(callback);

}

events.forEach((ev) => {

cache[ev] = {

triggered: false,

};

eventManager.on(ev, function wrapper(...data) {

trigger.call(this, ev, ...data);

});

}

Sunbelt Computer Software