<!doctypehtml>
<html lang="en">
<head>
  <title>
    实现类似BiLiBiLi的播放浮层控制
  </title>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport"
        content="width=device-width,initial-scale=1.0,user-scalable=no">
  <link rel="stylesheet"
        href="//cdn.jsdelivr.net/bootstrap/3.3.6/css/bootstrap.min.css">
  <style type="text/css">
    html {
      fon-family: sans-serif;
      -ms-text-size-adjust: 100%;
      -webkit-text-size-adjust: 100%;
      font-size: 62.5%;
      -webkit-tap-highlight-color: transparent
    }

    body {
      font-family: 'HelveticaNeue',
      '\5FAE\8F6F\96C5\9ED1',
      '\9ED1\4F53',
      sans-serif;
      letter-spacing: .01rem;
      font-size: 15px;
      line-height: 1.75em;
      color: #3A4145;
      -webkit-font-feature-settings: 'kern' 1;
      -moz-font-feature-settings: 'kern' 1;
      -o-font-feature-settings: 'kern' 1;
    }

    h1 {
      padding-top: 40px;
      text-align: center;
    }

    .main {
      max-width: 720px;
      margin: 80px auto;
      text-align: center;
    }

    .mainvideo {
      max-width: 100%;
      height: auto;
    }
  </style>
  <script src="https://lib.baomitu.com/jquery/3.4.1/jquery.min.js"></script>
</head>

<body class="doc">
<h1>
  实现类似BiLiBiLi的播放浮层控制
</h1>
<div class="main">
  <video controls
         poster="https://img1.wxzxzj.com/vpc-example-cover-your-name-c.png"
         src="https://media.vued.vanthink.cn/sparkle_your_name_am360p.mp4"/>
</div>
<script type="text/javascript">
var mediaList = [
    {
      src: 'https://media.vued.vanthink.cn/CJ7%20-%20Trailer.mp4',
      cover: 'https://img1.wxzxzj.com/vpc-example-cover-CJ7-c.jpg',
      title: '长江七号-周星驰导演作品,关于外星人的童话故事',
    },
    {
      src: 'https://media.vued.vanthink.cn/sparkle_your_name_am360p.mp4',
      cover: 'https://img1.wxzxzj.com/vpc-example-cover-your-name-c.png',
      title: '你的名字-新海诚导演作品,穿越彼此的身体,遇见不可思议',
    },
    {
      src: 'https://media.vued.vanthink.cn/the_garden_of_words_trailer_english__1080p.mp4',
      cover: 'https://img1.wxzxzj.com/vpc-example-cover-the-garden-c.jpg',
      title: '言叶之庭-新海诚导演作品,下雨天静谧的动静也有唯美的相遇',
    }]

$(function () {
  var $video = document.querySelector('video')
  console.log($video)
  var index = 1

  function playNext () {
    if (index === 2) {
      index = 0
    } else {
      index += 1
    }
    setMediaSession(index)
    $video.src = mediaList[index].src
    $video.play()
  }

  function playPrev () {
    if (index === 0) {
      index = 2
    } else {
      index -= 1
    }
    setMediaSession(index)
    $video.src = mediaList[index].src
    $video.play()
  }

  initMediaSession()

  function setMediaSession (index) {
    if ('mediaSession' in navigator) {
      var data = mediaList[index]
      navigator.mediaSession.metadata = new MediaMetadata({
        title: data.title,
        artist: data.director,
        artwork: [{
          src: data.cover,
          sizes: '192x192',
          },{
          src: data.cover,
          sizes: '192x192',
        }],
      })
    }
  }

  function initMediaSession () {
    if ('mediaSession' in navigator) {
      var ms = navigator.mediaSession
      setMediaSession(1)
      ms.setActionHandler('play', function () {
        console.log(3333)
        $video.play()
      })
      ms.setActionHandler('nexttrack', function () {
        console.log(3333)
        playNext()
      })
      ms.setActionHandler('previoustrack', function () {
        playPrev()
      })

//navigator.mediaSession.setActionHandler('pause',function(){/*Codeexcerpted.*/});

//navigator.mediaSession.setActionHandler('seekbackward',function(){/*Codeexcerpted.*/});

//navigator.mediaSession.setActionHandler('seekforward',function(){/*Codeexcerpted.*/});

//navigator.mediaSession.setActionHandler('previoustrack',function(){/*Codeexcerpted.*/});

//navigator.mediaSession.setActionHandler('nexttrack',function(){/*Codeexcerpted.*/});

    }

  }

})

</script>
</body>

</html>