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Twitter unmute sound on autoplayed videos

Automatically unmutes the sound on autoplayed videos on Twitter.

  1. // ==UserScript==
  2. // @name         Twitter unmute sound on autoplayed videos
  3. // @namespace    http://zezombye.dev/
  4. // @version      0.1
  5. // @description  Automatically unmutes the sound on autoplayed videos on Twitter.
  6. // @author       Zezombye
  7. // @match        https://twitter.com/*
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=twitter.com
  9. // @license      MIT
  10. // ==/UserScript==
  11.  
  12. /*
  13.  
  14. Twitter's code is so unnecessarily complex. I could just get the video element
  15. and do video.volume = 1 right? But nooo the twitter (sorry, X) engineers had
  16. to create the AudioElement within pure JS. So the only way I found to access it
  17. was to use the "m" hotkey to toggle mute. It isn't 100% reliable though. I
  18. couldn't manage to trigger the click event.
  19.  
  20. */
  21.  
  22. (function() {
  23.     'use strict';
  24.  
  25.     setInterval(function() {
  26.         let videos = document.getElementsByTagName("video");
  27.         for (let video of videos) {
  28.             if (video.hasAttribute("has-unmute-play-event")) {
  29.                 continue;
  30.             }
  31.             video.onplay = async function(e) {
  32.                 let videoKeyboardRegister = e.target.parentElement.parentElement.parentElement.children[1];
  33.                 if (videoKeyboardRegister.hasAttribute("has-been-played-once")) {
  34.                     return;
  35.                 }
  36.                 //console.log(videoKeyboardRegister);
  37.                 videoKeyboardRegister.setAttribute("has-been-played-once", "true");
  38.                 //videoKeyboardRegister.onkeypress = function(e) {console.log(e)};
  39.                 
  40.                 //Sometimes videos don't play if it's too low. Setting it to 50 is too low. So far on 100 no problem.
  41.                 await new Promise(r => setTimeout(r, 100));
  42.                 //console.log("owo");
  43.                 videoKeyboardRegister.focus({preventScroll: true});
  44.                 videoKeyboardRegister.dispatchEvent(new KeyboardEvent("keypress", {key: "m", charCode: 109, bubbles: false, cancelable: true, code: "Semicolon", isTrusted: true, keyCode: 109, which: 109}));
  45.             }
  46.             video.setAttribute("has-unmute-play-event", "true");
  47.         }
  48.     }, 100);
  49. })();