WorkerTimer

Needs to setInterval/setTimeout times working normally

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/438620/1009025/WorkerTimer.js 

// ==UserScript==
// @license      MIT
// @name         WorkerTimer
// @version      1.2
// @description  Needs to setInterval/setTimeout times working normally
// @author       mohayonao
// @match        http://*/*
// @match        https://*/*
// @grant        none
// @run-at       document-start
// @namespace    https://gist.github.com/mohayonao/50547c5a51a7ca71c90d
// ==/UserScript==

window.WorkerTimer = (function() {
  const global = window;
  var TIMER_WORKER_SOURCE = [
    "var timerIds = {}, _ = {};",
    "_.setInterval = function(args) {",
    "  timerIds[args.timerId] = setInterval(function() { postMessage(args.timerId); }, args.delay);",
    "};",
    "_.clearInterval = function(args) {",
    "  clearInterval(timerIds[args.timerId]);",
    "};",
    "_.setTimeout = function(args) {",
    "  timerIds[args.timerId] = setTimeout(function() { postMessage(args.timerId); }, args.delay);",
    "};",
    "_.clearTimeout = function(args) {",
    "  clearTimeout(timerIds[args.timerId]);",
    "};",
    "onmessage = function(e) { _[e.data.type](e.data) };"
  ].join("");

  var _timerId = 0;
  var _callbacks = {};
  var _timer = new global.Worker(global.URL.createObjectURL(
    new global.Blob([ TIMER_WORKER_SOURCE ], { type: "text/javascript" })
  ));

  _timer.onmessage = function(e) {
    if (_callbacks[e.data]) {
      _callbacks[e.data].callback.apply(null, _callbacks[e.data].params);
    }
  };

  return {
    setInterval: function(callback, delay) {
      var params = Array.prototype.slice.call(arguments, 2);

      _timerId += 1;

      _timer.postMessage({ type: "setInterval", timerId: _timerId, delay: delay });
      _callbacks[_timerId] = { callback: callback, params: params };

      return _timerId;
    },
    setTimeout: function(callback, delay) {
      var params = Array.prototype.slice.call(arguments, 2);

      _timerId += 1;

      _timer.postMessage({ type: "setTimeout", timerId: _timerId, delay: delay });
      _callbacks[_timerId] = { callback: callback, params: params };

      return _timerId;
    },
    clearInterval: function(timerId) {
      _timer.postMessage({ type: "clearInterval", timerId: timerId });
      _callbacks[timerId] = null;
    },
    clearTimeout: function(timerId) {
      _timer.postMessage({ type: "clearTimeout", timerId: timerId });
      _callbacks[timerId] = null;
    }
  };
})();