Make theater mode fill the entire page view with a hidden navbar and auto theater mode (Support new UI)
// ==UserScript==
// @name Youtube Fullpage Theater
// @version 1.3.0
// @description Make theater mode fill the entire page view with a hidden navbar and auto theater mode (Support new UI)
// @run-at document-body
// @match https://www.youtube.com/*
// @exclude https://*.youtube.com/live_chat*
// @exclude https://*.youtube.com/embed*
// @exclude https://*.youtube.com/tv*
// @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com
// @grant GM.getValue
// @grant GM.setValue
// @grant GM.addStyle
// @author Fznhq
// @namespace https://github.com/fznhq
// @homepageURL https://github.com/fznhq/userscript-collection
// @license GNU GPLv3
// ==/UserScript==
// Icons provided by https://iconmonstr.com/
(async function () {
"use strict";
/** @type {Window} */
const win = unsafeWindow;
/** @type {HTMLHtmlElement} */
const html = document.documentElement;
/** @type {HTMLBodyElement} */
const body = document.body;
/**
* Options must be changed via popup menu,
* just press (v) to open the menu
*/
const options = {
auto_theater_mode: {
icon: `<svg width="24" height="24" fill-rule="evenodd" clip-rule="evenodd"><path d="M24 22h-24v-20h24v20zm-1-19h-22v18h22v-18zm-4 7h-1v-3.241l-11.241 11.241h3.241v1h-5v-5h1v3.241l11.241-11.241h-3.241v-1h5v5z"/></svg>`,
label: "Auto Open Theater",
value: false, // fallback value
},
hide_scrollbar: {
icon: `<svg width="24" height="24" viewBox="0 0 24 24"><path d="M14 12c0 1.104-.896 2-2 2s-2-.896-2-2 .896-2 2-2 2 .896 2 2zm-3-3.858c.321-.083.653-.142 1-.142s.679.059 1 .142v-2.142h4l-5-6-5 6h4v2.142zm2 7.716c-.321.083-.653.142-1 .142s-.679-.059-1-.142v2.142h-4l5 6 5-6h-4v-2.142z"/></svg>`,
label: "Theater Hide Scrollbar",
value: true, // fallback value
onUpdate: () => {
if (html.hasAttribute(attr.theater))
html.toggleAttribute(
attr.no_scroll,
options.hide_scrollbar.value
);
},
},
close_theater_with_esc: {
icon: `<svg clip-rule="evenodd" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" viewBox="0 0 24 24"><path d="m21 3.998c0-.478-.379-1-1-1h-16c-.62 0-1 .519-1 1v16c0 .621.52 1 1 1h16c.478 0 1-.379 1-1zm-16.5.5h15v15h-15zm7.491 6.432 2.717-2.718c.146-.146.338-.219.53-.219.404 0 .751.325.751.75 0 .193-.073.384-.22.531l-2.717 2.717 2.728 2.728c.147.147.22.339.22.531 0 .427-.349.75-.75.75-.192 0-.385-.073-.531-.219l-2.728-2.728-2.728 2.728c-.147.146-.339.219-.531.219-.401 0-.75-.323-.75-.75 0-.192.073-.384.22-.531l2.728-2.728-2.722-2.722c-.146-.147-.219-.338-.219-.531 0-.425.346-.749.75-.749.192 0 .384.073.53.219z" fill-rule="nonzero"/></svg>`,
label: "Close Theater With Esc",
value: true, // fallback value
},
hide_card: {
icon: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M22 2v20H2V2h20zm2-2H0v24h24V0zm-6 10v8h-8v-8h8zm2-2H8v12h12V8zM4 4v12h2V6h10V4H4z"/></svg>`,
label: "Hide Card Outside Theater Mode",
value: false, // fallback value
onUpdate: () => {
if (!html.hasAttribute(attr.theater))
html.toggleAttribute(
attr.hide_card,
options.hide_card.value
);
},
},
};
function saveOption(name, value) {
options[name].value = value;
GM.setValue(name, value);
return value;
}
for (const name in options) {
const saved_option = await GM.getValue(name);
if (saved_option === undefined) {
saveOption(name, options[name].value);
} else {
options[name].value = saved_option;
}
}
const popup = {
container: document.createElement("div"),
menu: (() => {
const menu = document.createElement("div");
menu.className = "ytc-menu ytp-panel-menu";
for (const name in options) {
const item = document.createElement("div");
item.className = "ytp-menuitem";
item.ariaChecked = options[name].value;
item.innerHTML = /*html*/ `
<div class="ytp-menuitem-icon">${options[name].icon}</div>
<div class="ytp-menuitem-label">${options[name].label}</div>
<div class="ytp-menuitem-content">
<div class="ytp-menuitem-toggle-checkbox"></div>
</div>
`;
item.addEventListener("click", () => {
item.ariaChecked = saveOption(name, !options[name].value);
if (options[name].onUpdate) options[name].onUpdate();
});
menu.append(item);
}
return menu;
})(),
};
popup.container.className = "ytc-popup-container";
popup.container.append(popup.menu);
popup.container.addEventListener("click", (ev) => {
if (!popup.menu.contains(ev.target)) {
popup.container.remove();
}
});
window.addEventListener("keydown", (ev) => {
if (ev.key.toLowerCase() == "v" && !isActiveEditable()) {
if (document.contains(popup.container)) {
popup.container.remove();
} else {
body.append(popup.container);
}
} else if (ev.key == "Escape" && document.contains(popup.container)) {
popup.container.remove();
}
});
/**
* @param {string} query
* @returns {() => HTMLElement | null}
*/
function $(query) {
let cache;
return () => cache || (cache = document.querySelector(query));
}
GM.addStyle(/*css*/ `
html[no-scroll],
html[no-scroll] body {
scrollbar-width: none !important;
}
html[no-scroll]::-webkit-scrollbar,
html[no-scroll] body::-webkit-scrollbar {
display: none !important;
}
html[masthead-hidden] ytd-watch-flexy[fixed-panels] #chat {
top: 0 !important;
}
html[hide-card] ytd-player .ytp-paid-content-overlay,
html[hide-card] ytd-player .iv-branding,
html[hide-card] ytd-player .ytp-ce-element,
html[hide-card] ytd-player .ytp-chrome-top,
html[hide-card] ytd-player .ytp-suggested-action {
display: none !important;
}
html[theater][masthead-hidden] #masthead-container {
transform: translateY(-100%) !important;
}
html[theater] #page-manager {
margin: 0 !important;
}
html[theater] #full-bleed-container,
html[theater] #player-full-bleed-container {
height: 100vh !important;
max-height: none !important;
}
.ytc-popup-container {
position: fixed;
inset: 0;
z-index: 9000;
background: rgba(0, 0, 0, .5);
display: flex;
align-items: center;
justify-content: center;
}
.ytc-menu.ytp-panel-menu {
background: #000;
width: 400px;
font-size: 120%;
padding: 10px;
}
.ytc-menu svg {
fill: #eee;
}
`);
const element = {
watch: $("ytd-watch-flexy, ytd-watch-grid"), // ytd-watch-grid == trash
search: $("input#search"),
};
const attr = {
video_id: "video-id",
role: "role",
theater: "theater",
fullscreen: "fullscreen",
hidden_header: "masthead-hidden",
no_scroll: "no-scroll",
hide_card: "hide-card",
};
const keyToggleTheater = new KeyboardEvent("keydown", {
key: "t",
code: "KeyT",
which: 84,
keyCode: 84,
bubbles: true,
cancelable: true,
view: win,
});
/**
* @param {MutationCallback} callback
* @param {Node} target
* @param {MutationObserverInit | undefined} options
* @returns
*/
function observer(callback, target, options) {
const mutation = new MutationObserver(callback);
mutation.observe(target, options || { subtree: true, childList: true });
return mutation;
}
function isTheater() {
const elem = element.watch();
return (
elem.getAttribute(attr.role) == "main" &&
!elem.hasAttribute(attr.fullscreen) &&
elem.hasAttribute(attr.theater)
);
}
function isActiveEditable() {
/** @type {HTMLElement} */
const active = document.activeElement;
return (
active.tagName == "TEXTAREA" ||
active.tagName == "INPUT" ||
active.contentEditable == "true"
);
}
function toggleHeader() {
if (document.activeElement != element.search()) {
html.toggleAttribute(attr.hidden_header, !win.scrollY);
}
}
function toggleTheater() {
document.dispatchEvent(keyToggleTheater);
}
/**
* @param {KeyboardEvent} event
*/
function onEscapePress(event) {
if (event.key != "Escape" || document.contains(popup.container)) {
return;
}
if (options.close_theater_with_esc.value) {
toggleTheater();
} else {
const input = element.search();
if (document.activeElement != input) {
html.removeAttribute(attr.hidden_header);
setTimeout(() => input.focus(), 1);
} else if (!win.scrollY) {
html.setAttribute(attr.hidden_header, "");
input.blur();
}
}
}
/**
* @param {MutationRecord[]} mutations
*/
function openTheater(mutations) {
const attrs = [attr.role, attr.video_id];
const elem = element.watch();
if (
options.auto_theater_mode.value &&
mutations.some((m) => attrs.includes(m.attributeName)) &&
!elem.hasAttribute(attr.theater) &&
!elem.hasAttribute(attr.fullscreen)
) {
setTimeout(toggleTheater, 1);
}
}
function setAttribute(theater, header, scroll, card) {
html.toggleAttribute(attr.theater, theater);
html.toggleAttribute(attr.hidden_header, header);
html.toggleAttribute(attr.no_scroll, scroll);
html.toggleAttribute(attr.hide_card, card);
}
function setListener(action) {
element.search()[action]("blur", toggleHeader);
win[action]("scroll", toggleHeader);
win[action]("keydown", onEscapePress, true);
}
function watchTheaterMode() {
const state = isTheater();
if (state && !html.hasAttribute(attr.theater)) {
setAttribute(true, true, options.hide_scrollbar.value, true);
setListener("addEventListener");
} else if (!state && html.hasAttribute(attr.theater)) {
setAttribute(false, false, false, options.hide_card.value);
setListener("removeEventListener");
}
}
observer((_, observe) => {
const elem = element.watch();
if (!elem) return;
observer(
(mutations) => {
watchTheaterMode();
openTheater(mutations);
},
elem,
{ attributes: true }
);
observe.disconnect();
}, body);
})();