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TimeHookerLite

Set adjustable playback speed on selected websites

  1. // ==UserScript==
  2. // @name         TimeHookerLite
  3. // @namespace    https://cozian.timehooker.com
  4. // @version      1.4
  5. // @description  Set adjustable playback speed on selected websites
  6. // @author       cozian
  7. // @license      MIT
  8. // @include      *
  9. // @run-at       document-start
  10. // @grant        GM_registerMenuCommand
  11. // @grant        GM_getValue
  12. // @grant        GM_setValue
  13. // ==/UserScript==
  14.  
  15. (function() {
  16.     'use strict';
  17.  
  18.     // Retrieve include list and playback speed, or initialize defaults
  19.     let includeList = GM_getValue("includeList", []);
  20.     let playbackSpeed = GM_getValue("playbackSpeed", 10); // Default speed of 10x
  21.  
  22.     // Function to add the current site to the include list
  23.     function addToIncludeList() {
  24.         const currentSite = window.location.hostname;
  25.         if (!includeList.includes(currentSite)) {
  26.             includeList.push(currentSite);
  27.             GM_setValue("includeList", includeList);
  28.             alert(`Added ${currentSite} to include list.`);
  29.         } else {
  30.             alert(`${currentSite} is already in the include list.`);
  31.         }
  32.     }
  33.  
  34.     // Function to set a new playback speed
  35.     function setPlaybackSpeed() {
  36.         const newSpeed = prompt("Enter the new playback speed (e.g., 10 for 10x):", playbackSpeed);
  37.         if (newSpeed && !isNaN(newSpeed)) {
  38.             playbackSpeed = parseFloat(newSpeed);
  39.             GM_setValue("playbackSpeed", playbackSpeed);
  40.             alert(`Playback speed set to ${playbackSpeed}x.`);
  41.         } else {
  42.             alert("Invalid speed value. Please enter a numeric value.");
  43.         }
  44.     }
  45.  
  46.     // Register menu commands for adding sites and setting playback speed
  47.     GM_registerMenuCommand("Add this site to TimeHookerLite Include List", addToIncludeList);
  48.     GM_registerMenuCommand("Set TimeHookerLite Playback Speed", setPlaybackSpeed);
  49.  
  50.     // Check if the current site is in the include list before running the script
  51.     if (!includeList.includes(window.location.hostname)) {
  52.         return;
  53.     }
  54.  
  55.     // Override setInterval to accelerate intervals based on the playback speed
  56.     const originalSetInterval = window.setInterval;
  57.     window.setInterval = function(callback, delay, ...args) {
  58.         return originalSetInterval(callback, delay / playbackSpeed, ...args);
  59.     };
  60.  
  61.     // Override setTimeout to accelerate timeouts based on the playback speed
  62.     const originalSetTimeout = window.setTimeout;
  63.     window.setTimeout = function(callback, delay, ...args) {
  64.         return originalSetTimeout(callback, delay / playbackSpeed, ...args);
  65.     };
  66.  
  67.     // Override Date.now to simulate accelerated time
  68.     const originalDateNow = Date.now;
  69.     Date.now = function() {
  70.         return originalDateNow() * playbackSpeed;
  71.     };
  72.  
  73.     // Override performance.now to simulate accelerated time
  74.     const originalPerformanceNow = performance.now.bind(performance);
  75.     performance.now = function() {
  76.         return originalPerformanceNow() * playbackSpeed;
  77.     };
  78. })();