☰

WorkerTimer

Needs to setInterval/setTimeout times working normally

此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.cn-greasyfork.org/scripts/438620/1009025/WorkerTimer.js 

  1. // ==UserScript==
  2. // @license      MIT
  3. // @name         WorkerTimer
  4. // @version      1.2
  5. // @description  Needs to setInterval/setTimeout times working normally
  6. // @author       mohayonao
  7. // @match        http://*/*
  8. // @match        https://*/*
  9. // @grant        none
  10. // @run-at       document-start
  11. // @namespace    https://gist.github.com/mohayonao/50547c5a51a7ca71c90d
  12. // ==/UserScript==
  13.  
  14. window.WorkerTimer = (function() {
  15.   const global = window;
  16.   var TIMER_WORKER_SOURCE = [
  17.     "var timerIds = {}, _ = {};",
  18.     "_.setInterval = function(args) {",
  19.     "  timerIds[args.timerId] = setInterval(function() { postMessage(args.timerId); }, args.delay);",
  20.     "};",
  21.     "_.clearInterval = function(args) {",
  22.     "  clearInterval(timerIds[args.timerId]);",
  23.     "};",
  24.     "_.setTimeout = function(args) {",
  25.     "  timerIds[args.timerId] = setTimeout(function() { postMessage(args.timerId); }, args.delay);",
  26.     "};",
  27.     "_.clearTimeout = function(args) {",
  28.     "  clearTimeout(timerIds[args.timerId]);",
  29.     "};",
  30.     "onmessage = function(e) { _[e.data.type](e.data) };"
  31.   ].join("");
  32.  
  33.   var _timerId = 0;
  34.   var _callbacks = {};
  35.   var _timer = new global.Worker(global.URL.createObjectURL(
  36.     new global.Blob([ TIMER_WORKER_SOURCE ], { type: "text/javascript" })
  37.   ));
  38.  
  39.   _timer.onmessage = function(e) {
  40.     if (_callbacks[e.data]) {
  41.       _callbacks[e.data].callback.apply(null, _callbacks[e.data].params);
  42.     }
  43.   };
  44.  
  45.   return {
  46.     setInterval: function(callback, delay) {
  47.       var params = Array.prototype.slice.call(arguments, 2);
  48.  
  49.       _timerId += 1;
  50.  
  51.       _timer.postMessage({ type: "setInterval", timerId: _timerId, delay: delay });
  52.       _callbacks[_timerId] = { callback: callback, params: params };
  53.  
  54.       return _timerId;
  55.     },
  56.     setTimeout: function(callback, delay) {
  57.       var params = Array.prototype.slice.call(arguments, 2);
  58.  
  59.       _timerId += 1;
  60.  
  61.       _timer.postMessage({ type: "setTimeout", timerId: _timerId, delay: delay });
  62.       _callbacks[_timerId] = { callback: callback, params: params };
  63.  
  64.       return _timerId;
  65.     },
  66.     clearInterval: function(timerId) {
  67.       _timer.postMessage({ type: "clearInterval", timerId: timerId });
  68.       _callbacks[timerId] = null;
  69.     },
  70.     clearTimeout: function(timerId) {
  71.       _timer.postMessage({ type: "clearTimeout", timerId: timerId });
  72.       _callbacks[timerId] = null;
  73.     }
  74.   };
  75. })();