youtube HTML5 Auto Loop

youtubeHTML5プレイヤー再生時に自動ループする

Від 11.02.2017. Дивіться остання версія.

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 or Violentmonkey 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.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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 HTML5 Auto Loop
// @namespace      youtube HTML5 Auto Loop
// @grant          none
// @description    youtubeHTML5プレイヤー再生時に自動ループする
// @author         TNB
// @match          *://*.youtube.com/*
// @version        1.0
// ==/UserScript==

var loop_off = {
  when_enable_next_video_autoplay: false,
  when_playlist: false,
  with_embedded_video: false
};

var YoutubeHTML5AutoLoop = {
  loop: '',
  eventCache: {},
  isLoop: function() {
    var ele = {when_enable_next_video_autoplay:'input[type="checkbox"]:checked+label .unchecked', when_playlist:'#watch-appbar-playlist', with_embedded_video:'html[dir]'};
    for (var i in loop_off) {
      if (loop_off[i] && document.querySelector(ele[i])) {
        return false;
      }
    }
    return true;
  },
  init: function() {
    this.loop = this.isLoop();
    this.addListener();
  },
  loopOn: function() {
    var video = document.getElementsByTagName('video')[0];
    if (this.loop) {
      video.setAttribute('loop', '');
    } else {
      video.removeAttribute('loop');
    }
  },
  loopToggle: function() {
    this.loop = this.loop? false: true;
    this.loopOn();
  },
  loopDisplay: function() {
    var video = document.querySelector('video:hover');
    if (video) {
      var checkBox = document.querySelector('[aria-checked]');
      checkBox.setAttribute('aria-checked', this.loop);
      if (!this.eventCache.addLoopToggle) {
        checkBox.addEventListener('click', this, false);
        this.eventCache.addLoopToggle = true;
      }
    }
  },
  watchAjax: function() {
    var content = document.getElementById('page');
    if (content) {
      var ev = new CustomEvent('completedRequest'),
          mo = new MutationObserver(function(){window.dispatchEvent(ev)});
      mo.observe(content, {attributes:true, attributeFilter:['class']});
    }
  },
  addListener: function() {
    if (!this.eventCache.loadEvent) {
      window.addEventListener('load', this, false);
      window.addEventListener('contextmenu', this, false);
      window.addEventListener('completedRequest', this, false);
      this.eventCache.loadEvent = true;
    }
    if (loop_off.when_enable_next_video_autoplay) {
      var autoplay = document.getElementById('autoplay-checkbox');
      if (autoplay) {
        autoplay.addEventListener('click', this, false);
      }
    }
  },
  handleEvent: function(e) {
    switch(e.type) {
      case 'load':
        this.watchAjax();
        this.loopOn();
        break;
      case 'contextmenu':
        this.loopDisplay();
        break;
      case 'click':
        this.loopToggle();
        break;
      case 'completedRequest':
        this.init();
        this.loopOn();
        break;
    }
  }
};

YoutubeHTML5AutoLoop.init();