yonge
/
dy-admin-manager


			
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							<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=0,viewport-fit=cover">
  </head>
  <style>
    body {
  --spacing: .75rem;
  font-family: sans-serif;
  line-height: 1.5;
  text-align: center;
  margin: .75rem;
  padding-bottom: 2rem;
  color: hsl(269,19%,30%);
  background-color: hsla(32,100%,85%,.35);
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg width='100%25' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.4'/%3E%3C/filter%3E%3C/defs%3E%3C!-- %3Cpath filter='url(%23a)' opacity='.3' d='M0 0h1200v256H0z'/%3E--%3E%3Crect filter='url(%23a)' opacity='.3' width='100%25' height='100%25'/%3E%3C/svg%3E");
}
@media (min-width: 48em) {
  body {--spacing: 1rem;}
}
  body * {box-sizing: border-box;}
  h1, h2, h3 {font-weight:100;}
  h1 {margin: 1em 0 .5em;}
  .group {
    border: 1px solid #fff;
    background-color: rgba(255,255,255,.25);
    padding: .5rem 1rem;
    margin: 1rem auto;
  }

  .url {
    display: flex;
    width: 100%;
    margin: 1rem auto;
  }
  [class*="_label"] {
    position: relative;
    white-space: nowrap;
    margin-right: .5em;
    min-width: 4em;
  }
  [class*="_label"] > span {
    display: block;
    position: relative;
    top: 50%;
    transform: translatey(-50%);
  }
  [class*="_input"] {
    display: inline-block;
    line-height: 1;
    width: 100%;
    margin: 0;
    padding: .25rem .5rem;
    font: inherit;
    border: 1px solid #fff;
    background-color: rgba(255,255,255,.5);
  }


  .upload {
    display: flex;
    width: 100%;
    margin: 1rem auto;
  }

  .player_audio {
    width: 100%;
  }
  .player_display {
    font-size: 1.25rem;
  }
  .tempo {
    display: flex;
    width: 100%;
    margin: 1rem auto;
  }
  .tempo_display {
    font-weight: 700;
    min-width: 3em;
    margin-left: .5em;
  }
  </style>
<body>
  <main>
    <div class=group>
      <div class=upload>
        <label class=upload_label for=upload_input><span>上传</span></label>
        <input id=upload_input class=upload_input type=file accept="audio/*">
      </div>

    </div>

    <div class=group>

      <div class=player>
        <h3 class=player_display>SJE40W8.mp3</h3>
        <audio class=player_audio controls  src="./SJE40W8.mp3">
          <track id=player-chords kind=captions srclang=en>
        </audio>
      </div>

      <div class=tempo>
        <label class=tempo_label for=tempo_input>速度</label>
        <input class=tempo_input id=tempo_input type=range value=1 min=0.25 max=2.5 step=0.01>
        <span class=tempo_display></span>
      </div>

    </div>

  </main>

<script>

const player = document.querySelector('.player_audio');
const playerDisplay = document.querySelector('.player_display');

const changeTempo = function () {
  player.playbackRate = tempoInput.value;
  tempoDisplay.textContent = tempoInput.value;
};

const changeSongURL = function (e) {
  player.src = urlInput.value;
  let filename = player.src.split('\\').pop().split('/').pop();
  playerDisplay.textContent = filename;
}

const changeSongFile = function (e) {
  const target = e.currentTarget;
  const file = target.files[0];
  let reader;

  if (target.files && file) {
    reader = new FileReader();
    reader.onload = function (e) {
      player.setAttribute('src', e.target.result);
      playerDisplay.textContent = file.name;
      // player.play(); // auto play on load
    }
    reader.readAsDataURL(file);
  }
};

// Get the song from:
// const urlInput = document.getElementById('url_input');
// urlInput.addEventListener("change", changeSongURL, false);


// Or upload an MP3:
const uploadInput = document.getElementById('upload_input');
uploadInput.addEventListener('change', changeSongFile, false);


// Playback tempo
const tempoInput = document.getElementById('tempo_input');
tempoInput.addEventListener("change", changeTempo, false);
const tempoDisplay = document.querySelector('.tempo_display');
tempoDisplay.textContent = tempoInput.value;


// Chords from:
// const vtt = document.getElementById('url_input').value.replace('.mp3', '.vtt');
// const player_chords = document.getElementById('player-chords');

// player_chords.src = vtt;
// player.src = urlInput.value;
// changeSongURL();
changeTempo();
</script>

</body>
</html>