Youtube Player Controls below Video

Move YouTube Player Controls below the video

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Youtube Player Controls below Video
// @description Move YouTube Player Controls below the video
// @namespace   Userscript
// @version     0.1.20
// @match       https://www.youtube.com/*
// @grant       none
// @noframes
// @author      CY Fung
// @license     MIT
// @run-at      document-start
// ==/UserScript==

(() => {

  /** @type {globalThis.PromiseConstructor} */
  const Promise = (async () => { })().constructor; // YouTube hacks Promise in WaterFox Classic and "Promise.resolve(0)" nevers resolve.

  const SCRIPT_CLASSNAME = 'yt8447-enabled'
  const SCRIPT_CSS_ID = 'fj74F'

  const css_text = `

  html{
      --yt8447-chrome-background: black;
  }
  html[dark] {
      --yt8447-chrome-background: transparent;
  }

  .${SCRIPT_CLASSNAME} {
      --yt8446-gap: 64px;
      --yt8447-height: 52px;
      --yt8446-offset-y-min: 4px;

      --yt8448-gap: max(var(--yt8446-gap), var(--subs-gap, 0px));
      --yt8448-gap-theater: max(var(--yt8446-gap), var(--subs-gap-theater, 0px));

      --yt8446-offset-y: 0px;
      --yt8446-offset-y: calc( ( var(--yt8448-gap) - var(--yt8446-gap) ) / 2 );
      --yy8446-offset-y1: max(var(--yt8446-offset-y-min), var(--yt8446-offset-y, 0px));
  }

  .${SCRIPT_CLASSNAME} #columns.ytd-watch-flexy {
      --subs-gap: var(--yt8448-gap);
      --subs-gap-theater: var(--yt8448-gap-theater);
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player .ytp-chrome-bottom {
      bottom: calc( var(--yt8447-height) * -1 - var(--yy8446-offset-y1) );
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player .ytp-tooltip.ytp-bottom {
      margin-top: calc( var(--yt8447-height) + var(--yy8446-offset-y1) );
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player .ytp-chrome-bottom::before {
      position: absolute;
      left: -12px;
      right: -12px;
      content: '';
      display: block;
      bottom: 0px;
      top: calc( -5px - ( var(--yy8446-offset-y1) - 4px ) ); /* actual size 51px instead of 52px */
      background-color: var(--yt8447-chrome-background, transparent);
      z-index: -1;
      transform: translateZ(-1px);
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player #movie_player::after {
      position: absolute;
      display: block;
      content: '';
      left: 0;
      right: 0;
      height: var(--yt8447-height);
      bottom: calc( var(--yt8447-height) * -1 );
      opacity: 0 !important;
      pointer-events: auto !important;
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player #movie_player .ytp-popup.ytp-settings-menu {
      transform: translateY( var(--yt8447-height) );
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) ytd-player#ytd-player #movie_player {
      overflow: visible;
      z-index: 999;
  }

  .${SCRIPT_CLASSNAME}[theater]:not([fullscreen]) #below.ytd-watch-flexy, .${SCRIPT_CLASSNAME}[theater]:not([fullscreen]) #secondary.ytd-watch-flexy {
      --yt8448-gap: var(--yt8448-gap-theater);
  }

  .${SCRIPT_CLASSNAME}:not([fullscreen]) #below.ytd-watch-flexy, .${SCRIPT_CLASSNAME}[theater]:not([fullscreen]) #secondary.ytd-watch-flexy {
      margin-top: var(--yt8448-gap) !important;
      transition: margin-top 0.25s;
  }

  @supports (color: var(--general-fix-video-ended-mode-display)) {
    /* this is a general fix, might or might not directly related to this script */
    #movie_player .html5-video-container {
        position: absolute;
        bottom: 0;
        top: 0;
        left: 0;
        right: 0;
        overflow: hidden; /* to against overflow:visible in #movie_player in some userscripts */
        contain: layout size paint style; /* if supported */
    }
    #movie_player .html5-video-container > video[style*="top: -"],
    #movie_player .html5-video-container > video[style*="top:-"] {
        margin-top: -1px !important; /* (.ended-mode#movie_player) video size 943 x 530.44, but top: -530px only */
    }
  }



  .${SCRIPT_CLASSNAME}:not([fullscreen]) .html5-video-player[class]:not(.ytp-fullscreen) .ytp-chrome-bottom[class]:hover {
    opacity: initial;
    visibility: initial;
  }

  html body ytd-watch-flexy.${SCRIPT_CLASSNAME}:not([fullscreen])[rounded-player-large][default-layout] #ytd-player.ytd-watch-flexy {
    overflow: initial;
  }

  html body ytd-watch-flexy.${SCRIPT_CLASSNAME}:not([fullscreen])[class] #ytd-player.ytd-watch-flexy[class] {
    overflow: initial;
  }

  `;

  let mState = 0;
  async function main(evt) {
    try {
      await Promise.resolve();
      if (mState === 0) {
        if (document.getElementById(SCRIPT_CSS_ID)) {
          mState = -1;
          console.warn('yt8447: duplicated script');
          return;
        }
        const style = document.createElement('style');
        style.textContent = css_text;
        style.id = SCRIPT_CSS_ID;
        document.head.appendChild(style);
        mState = 1;
      }
      if (mState < 1) return;

      const ytdFlexy = document.querySelector('ytd-watch-flexy');
      if (ytdFlexy !== null) {

        let isValid = true;
        if (ytdFlexy.hasAttribute('hidden')) isValid = false;
        else if (ytdFlexy.matches('[hidden] ytd-watch-flexy')) isValid = false;

        ytdFlexy.classList.toggle(SCRIPT_CLASSNAME, isValid);
      }
    } catch (e) { console.log(e) }

  }

  document.addEventListener('yt-navigate-finish', main, false);
  document.addEventListener('yt-page-data-fetched', main, false);
})();