Modified_WorkerTimer

Needs to setInterval/setTimeout times working normally

As of 2022-09-09. See the latest version.

This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/451050/1091555/Modified_WorkerTimer.js

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @license      MIT
// @name         Modified_WorkerTimer
// @version      1.2.1
// @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 += 50;

      _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, 4);

      _timerId += 50;

      _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;
    }
  };
})();