// ==UserScript==
// @name         Twitch Middle Mouse Button Mute / Unmute
// @author       NWP
// @description  Mutes / unmutes a Twitch video by clicking the middle mouse button within the video player. While performing the middle mouse button click, the scroll button gets disabled. Mute / unmute / scroll disabling won't work with any elements floating over the video player.
// @namespace    https://greasyfork.org/users/877912
// @version      0.1
// @license      MIT
// @match        *://*.twitch.tv/*
// @run-at       document-start
// @grant        none
// ==/UserScript==
(function() {
// div[data... is for when the controls are visible, video is for when the controls are hidden
// due to https://greasyfork.org/en/scripts/501592-auto-hide-video-controls-almost-instantly-really-quickly-for-the-twitch-desktop-and-mobile-site
// being enabled
//
// Normally, only div[data... is needed
const videoArea = "div[data-a-target='player-overlay-click-handler'], video";
const muteButton = "button[data-a-target='player-mute-unmute-button']";
function handleMiddleMouseButtonDown(event) {
if (event.button === 1 && event.target.closest(videoArea)) {
event.preventDefault();
const button = document.querySelector(muteButton);
if (button) {
button.click();
}
}
}
function addEventListenersToVideos() {
const videos = document.querySelectorAll(videoArea);
videos.forEach((video) => {
video.removeEventListener('mousedown', handleMiddleMouseButtonDown);
video.addEventListener('mousedown', handleMiddleMouseButtonDown);
});
}
const observer = new MutationObserver((mutationsList) => {
for (const mutation of mutationsList) {
if (mutation.type === 'childList' && mutation.addedNodes.length) {
mutation.addedNodes.forEach((node) => {
if (node.nodeType === 1) {
if (node.matches(videoArea) || node.querySelector(videoArea)) {
addEventListenersToVideos();
}
}
});
}
}
});
observer.observe(document.body, { childList: true, subtree: true });
addEventListenersToVideos();
})();