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m.YouTube.com allow background play TEST SCRIPT

Allows m.YouTube.com background play, especially useful for iPhone users

  1. // ==UserScript==
  2. // @name         m.YouTube.com allow background play TEST SCRIPT
  3. // @namespace    m-youtube-com-allow-background-play
  4. // @version      1.0
  5. // @description  Allows m.YouTube.com background play, especially useful for iPhone users
  6. // @author       hlorand.hu
  7. // @match        https://m.youtube.com/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=tampermonkey.net
  9. // @grant        none
  10. // @license      https://creativecommons.org/licenses/by-nc-sa/4.0/
  11. // ==/UserScript==
  12.  
  13. // Original code: https://addons.mozilla.org/en-US/android/addon/video-background-play-fix/
  14.  
  15. (function() {
  16.     //'use strict';
  17.  
  18.     const IS_YOUTUBE = window.location.hostname.search(/(?:^|.+\.)youtube\.com/) > -1 ||
  19.                    window.location.hostname.search(/(?:^|.+\.)youtube-nocookie\.com/) > -1;
  20.     const IS_MOBILE_YOUTUBE = window.location.hostname == 'm.youtube.com';
  21.     const IS_DESKTOP_YOUTUBE = IS_YOUTUBE && !IS_MOBILE_YOUTUBE;
  22.     const IS_VIMEO = window.location.hostname.search(/(?:^|.+\.)vimeo\.com/) > -1;
  23.  
  24.     const IS_ANDROID = window.navigator.userAgent.indexOf('Android') > -1;
  25.  
  26.     // Page Visibility API
  27.     if (IS_ANDROID || !IS_DESKTOP_YOUTUBE) {
  28.       Object.defineProperties(document.wrappedJSObject,
  29.         { 'hidden': {value: false}, 'visibilityState': {value: 'visible'} });
  30.     }
  31.  
  32.     window.addEventListener(
  33.       'visibilitychange', evt => evt.stopImmediatePropagation(), true);
  34.  
  35.     // Fullscreen API
  36.     if (IS_VIMEO) {
  37.       window.addEventListener(
  38.         'fullscreenchange', evt => evt.stopImmediatePropagation(), true);
  39.     }
  40.  
  41.     // User activity tracking
  42.     if (IS_YOUTUBE) {
  43.       loop(pressKey, 60 * 1000, 10 * 1000); // every minute +/- 5 seconds
  44.     }
  45.  
  46.     function pressKey() {
  47.       const keyCodes = [18];
  48.       let key = keyCodes[getRandomInt(0, keyCodes.length)];
  49.       sendKeyEvent("keydown", key);
  50.       sendKeyEvent("keyup", key);
  51.     }
  52.  
  53.     function sendKeyEvent (aEvent, aKey) {
  54.       document.dispatchEvent(new KeyboardEvent(aEvent, {
  55.         bubbles: true,
  56.         cancelable: true,
  57.         keyCode: aKey,
  58.         which: aKey,
  59.       }));
  60.     }
  61.  
  62.     function loop(aCallback, aDelay, aJitter) {
  63.       let jitter = getRandomInt(-aJitter/2, aJitter/2);
  64.       let delay = Math.max(aDelay + jitter, 0);
  65.  
  66.       window.setTimeout(() => {
  67.                           aCallback();
  68.                           loop(aCallback, aDelay, aJitter);
  69.                         }, delay);
  70.     }
  71.  
  72.     function getRandomInt(aMin, aMax) {
  73.       let min = Math.ceil(aMin);
  74.       let max = Math.floor(aMax);
  75.       return Math.floor(Math.random() * (max - min)) + min;
  76.     }
  77.  
  78.  
  79. })();