Turn to wider Youtube screen automatially.
Per
// ==UserScript==
// @name:ko 유튜브 극장모드
// @name Youtube Theatermode
// @name:ru Youtube Театральный режим
// @name:jp Youtubeシアターモード
// @name:zh-CN 优酷影院模式
// @name:zh-TW 優酷影院模式
// @description:ko 유튜브 화면을 자동으로 꽉 찬 화면으로 바꿉니다.
// @description Turn to wider Youtube screen automatially.
// @description:ru Автоматически переключайтесь на более широкий экран Youtube.
// @description:jp 自動的に広いYouTube画面に移動します
// @description:zh-CN 自动转到更宽的 YouTube 屏幕
// @description:zh-TW 自動轉到更寬的 YouTube 屏幕
// @namespace https://ndaesik.tistory.com/
// @version 2022.05.15.14.42
// @author ndaesik
// @icon https://lh3.googleusercontent.com/iLZyxGK7l1343U4E7eAfgKbRWW6qhzCJq-Z92M60JzCMntFyaFF2GUQVRxPhfGcy6qRISLjHv4fX1vtq0TZkZMAzBjM
// @match https://www.youtube.com/*
// ==/UserScript==
let DEF = document.createElement("style"), TOG = document.createElement("style")
DEF.innerText = `
#chips-wrapper.ytd-feed-filter-chip-bar-renderer {top:56px}
[dark] .gstl_50.sbdd_a * {background-color:#232323!important; border-color:#282828!important}
[dark] .gsfs,[dark] .sbpqs_a{color:#FFF!important}
[dark] .sbqs_c:before {filter: invert(1)!important}
ytd-app:not([guide-persistent-and-visible]) [theater] #player.ytd-watch {height: 100vh!important; max-height: 100vh!important}
:is(ytd-watch-flexy[theater],ytd-watch-flexy[fullscreen]) #player-theater-container.ytd-watch-flexy,
ytd-app:not([guide-persistent-and-visible]) [theater] #player video {
width: 100%!important; height: 100vh!important; max-height: 100vh!important; max-width: 100%!important; left: 0!important}`
document.head.appendChild(DEF)
TOG.innerText = `
ytd-app:not([guide-persistent-and-visible]) :is(#masthead-container ytd-masthead, #masthead-container.ytd-app::after) {transform: translateY(-56px); transition: transform .1s .3s ease-out}
ytd-app:not([guide-persistent-and-visible]) :is(#masthead-container:hover ytd-masthead, #masthead-container:hover.ytd-app::after, #masthead-container:focus-within ytd-masthead) {transform: translateY(0px)}
ytd-app:not([guide-persistent-and-visible]) ytd-page-manager {margin-top: 0!important}`
TOG.className = "TOGstyle"
"yt-navigate-finish load".split(" ").forEach((e) => {
window.addEventListener(e, () => {
document.head.appendChild(TOG)
let full = setInterval(() => {((document.querySelector("#ytd-player")?.offsetWidth + 50) < window.innerWidth) ? document.querySelectorAll(".ytp-size-button").forEach(el=>el.click()) : clearInterval(full)},100)
setTimeout(() => {if (document.querySelector("ytd-watch-flexy") == null) document.querySelector(".TOGstyle")?.remove()}, 100)
setTimeout(() => {clearInterval(full)}, 10000)
window.scrollTo(0, 0)
});
});
window.addEventListener("mouseup", () => {
setTimeout(() => {
((document.querySelector("#ytd-player").offsetWidth + 50) < window.innerWidth || document.URL.indexOf("watch") == -1) ?
document.querySelector(".TOGstyle")?.remove() : document.head.appendChild(TOG)
}, 100)
})