Youtube Theater Fill Up Window

make theater mode fill up window
目前为 2023-03-09 提交的版本。查看最新版本。
Wrap lines
// ==UserScript==
// @name               Youtube Theater Fill Up Window
// @name:zh-TW         Youtube Theater Fill Up Window
// @namespace          https://gf.qytechs.cn/scripts/454092
// @version            1.0.4
// @description        make theater mode fill up window
// @description:zh-TW  讓劇院模式填滿視窗
// @author             Derek
// @match              *://www.youtube.com/*
// @grant              none
// @noframes
// ==/UserScript==
 
let $ = (element) => document.querySelector(element)
let getScrollbarWidth = () => {
  let dummy = document.createElement('div')
  $('body').appendChild(dummy)
  dummy.style.overflowY = 'scroll'
  let clientWidth = dummy.clientWidth
  let offsetWidth = dummy.offsetWidth
  document.body.removeChild(dummy)
  return offsetWidth - clientWidth + 1
}
 
let css = `
  #masthead-container {
    display: none !important;
  }
  ytd-page-manager {
    margin: 0 !important;
  }
  #player-theater-container {
    min-height: 100vh !important;
    min-width: calc(100vw - ${getScrollbarWidth()}px) !important;
  }
`
 
let theaterMode = () => {
  if ($('#player-theater-container>#player-container') && !$('#theater-mode')) {
    let theaterStyle = document.createElement('style')
    theaterStyle.setAttribute('id', 'theater-mode')
    theaterStyle.appendChild(document.createTextNode(css))
    $('head').appendChild(theaterStyle)
  } else if (!$('#player-theater-container>#player-container') && $('#theater-mode')) $('head').removeChild($('#theater-mode'))
}
 
let main = () => {
  if (window.location.href.includes('/watch?v=')) {
    if ($('ytd-watch-flexy').isTheater_()) theaterMode()
    let observer = new MutationObserver(theaterMode)
    observer.observe($('#player-theater-container'), { childList: true })
  } else if ($('#theater-mode')) $('head').removeChild($('#theater-mode'))
}
 
document.addEventListener('yt-navigate-finish', main)
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