YouTube - Hide chat by default

Hide chat on YouTube live videos by default.

Verze ze dne 10. 09. 2024. Zobrazit nejnovější verzi.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         YouTube - Hide chat by default
// @namespace    amekusa.yt-hide-chat
// @author       amekusa
// @version      1.2.1
// @description  Hide chat on YouTube live videos by default.
// @match        https://www.youtube.com/*
// @run-at       document-start
// @grant        none
// @license      MIT
// @homepage     https://github.com/amekusa/monkeyscripts
// ==/UserScript==

(function (doc) {
	// --- config ---
	let wait = 4000; // initial wait time (ms)
	let interval = 2000; // update interval (ms)
	let match = /^https:\/\/www\.youtube\.com\/(?:watch\?|clip\/)/; // url pattern
	let debug = false ? console.debug : (() => {});
	// --------------

	let watcher;
	let hide;
	let url;

	function findCloseButton() {
		try {
			let el = doc.querySelector('iframe#chatframe');
			if (!el) return null;
			el = el.contentWindow.document;
			if (!el.querySelector('yt-live-chat-item-list-renderer #items [id], yt-live-chat-item-list-renderer #empty-state-message')) return null;
			return el.querySelector('yt-live-chat-header-renderer #close-button button');
		} catch (e) {
			return null;
		}
	}

	function unhide() {
		debug('unhide.');
		hide = false;
	}

	function update() {
		if (!window.location.href.match(match)) return; // do nothing

		// detect url change
		if (url != window.location.href) {
			debug('url changed:', window.location.href);
			return init();
		}

		if (!hide) return;

		// find & click the close button
		let btn = findCloseButton();
		if (btn) {
			debug('click:', btn);
			return btn.dispatchEvent(new Event('click'));
		}

		// hook "Show chat" button
		btn = doc.querySelector('#chat-container #show-hide-button button');
		if (btn) {
			btn.removeEventListener('click', unhide);
			btn.addEventListener('click', unhide);
		}
	}

	function init() {
		if (watcher) clearInterval(watcher);
		debug('initializing...');
		hide = true;
		url = window.location.href;
		setTimeout(() => {
			watcher = setInterval(update, interval);
			debug('initialized.');
			update();
		}, wait);
	}

	doc.addEventListener('DOMContentLoaded', init);

})(document);