看到一个用css3实现的CD的动画，演示在这儿http://codepen.io/_kieran/pen/QNRmep

突然那我就想说给自己做一个音乐播放器吧，说做就做。演示在https://echolsx.github.io/music/

Github传送门：https://github.com/EchoLsx/music

主要代码：

<div id="background"></div>
<div id="player">

<div class="cover"></div>
<div class="ctrl"><div class="tag"><strong>Title</strong><span class="artist">Artist</span><span class="album">Album</span></div><div class="control"><div class="left"><div class="rewind icon"></div><div class="playback icon"></div><div class="fastforward icon"></div></div><div class="volume right"><div class="mute icon left"></div><div class="slider left"><div class="pace"></div></div></div></div><div class="progress"><div class="slider"><div class="loaded"></div><div class="pace"></div></div><div class="timer left">0:00</div><div class="right"><div class="repeat icon"></div><div class="shuffle icon"></div></div></div></div>
</div>
<ul id="playlist"></ul>

JS部分：

   (function($){// Settingsvar repeat = localStorage.repeat || 0,shuffle = localStorage.shuffle || 'false',continous = true,autoplay = true,playlist = [{title: 'Lost Stars',artist: 'Adam Levine',album: 'Begin Again (Music From and Inspired By the Original Motion Picture)',cover:'img/1.jpg',mp3: 'mp3/Adam Levine - Lost Stars.mp3',ogg: ''},{title: 'Color Blind',artist: 'Matt B',album: 'LOVE AND WAR',cover: 'img/8.jpg',mp3: 'mp3/Matt B - Color Blind.mp3',ogg: ''},];// Load playlistfor (var i=0; i<playlist.length; i++){var item = playlist[i];$('#playlist').append('<li>'+item.artist+' - '+item.title+'</li>');}var time = new Date(),currentTrack = shuffle === 'true' ? time.getTime() % playlist.length : 0,trigger = false,audio, timeout, isPlaying, playCounts;var play = function(){audio.play();$('.playback').addClass('playing');timeout = setInterval(updateProgress, 500);isPlaying = true;}var pause = function(){audio.pause();$('.playback').removeClass('playing');clearInterval(updateProgress);isPlaying = false;}// Update progressvar setProgress = function(value){var currentSec = parseInt(value%60) < 10 ? '0' + parseInt(value%60) : parseInt(value%60),ratio = value / audio.duration * 100;$('.timer').html(parseInt(value/60)+':'+currentSec);$('.progress .pace').css('width', ratio + '%');$('.progress .slider a').css('left', ratio + '%');}var updateProgress = function(){setProgress(audio.currentTime);}// Progress slider$('.progress .slider').slider({step: 0.1, slide: function(event, ui){$(this).addClass('enable');setProgress(audio.duration * ui.value / 100);clearInterval(timeout);}, stop: function(event, ui){audio.currentTime = audio.duration * ui.value / 100;$(this).removeClass('enable');timeout = setInterval(updateProgress, 500);}});// Volume slidervar setVolume = function(value){audio.volume = localStorage.volume = value;$('.volume .pace').css('width', value * 100 + '%');$('.volume .slider a').css('left', value * 100 + '%');}var volume = localStorage.volume || 0.5;$('.volume .slider').slider({max: 1, min: 0, step: 0.01, value: volume, slide: function(event, ui){setVolume(ui.value);$(this).addClass('enable');$('.mute').removeClass('enable');}, stop: function(){$(this).removeClass('enable');}}).children('.pace').css('width', volume * 100 + '%');$('.mute').click(function(){if ($(this).hasClass('enable')){setVolume($(this).data('volume'));$(this).removeClass('enable');} else {$(this).data('volume', audio.volume).addClass('enable');setVolume(0);}});// Switch trackvar switchTrack = function(i){if (i < 0){track = currentTrack = playlist.length - 1;} else if (i >= playlist.length){track = currentTrack = 0;} else {track = i;}$('audio').remove();loadMusic(track);if (isPlaying == true) play();}// Shuffle
var shufflePlay = function(){var time = new Date(),lastTrack = currentTrack;currentTrack = time.getTime() % playlist.length;if (lastTrack == currentTrack) ++currentTrack;switchTrack(currentTrack);
}// Fire when track ended
var ended = function(){pause();audio.currentTime = 0;playCounts++;if (continous == true) isPlaying = true;if (repeat == 1){play();} else {if (shuffle === 'true'){shufflePlay();} else {if (repeat == 2){switchTrack(++currentTrack);} else {if (currentTrack < playlist.length) switchTrack(++currentTrack);}}}
}var beforeLoad = function(){var endVal = this.seekable && this.seekable.length ? this.seekable.end(0) : 0;$('.progress .loaded').css('width', (100 / (this.duration || 1) * endVal) +'%');
}// Fire when track loaded completely
var afterLoad = function(){if (autoplay == true) play();
}// Load track
var loadMusic = function(i){var item = playlist[i],newaudio = $('<audio>').html('<source src="'+item.mp3+'"><source src="'+item.ogg+'">').appendTo('#player');$('.cover').html('<img src="'+item.cover+'" alt="'+item.album+'">');$('.tag').html('<strong>'+item.title+'</strong><span class="artist">'+item.artist+'</span><span class="album">'+item.album+'</span>');$('#playlist li').removeClass('playing').eq(i).addClass('playing');audio = newaudio[0];audio.volume = $('.mute').hasClass('enable') ? 0 : volume;audio.addEventListener('progress', beforeLoad, false);audio.addEventListener('durationchange', beforeLoad, false);audio.addEventListener('canplay', afterLoad, false);audio.addEventListener('ended', ended, false);
}loadMusic(currentTrack);
$('.playback').on('click', function(){if ($(this).hasClass('playing')){pause();} else {play();}
});
$('.rewind').on('click', function(){if (shuffle === 'true'){shufflePlay();} else {switchTrack(--currentTrack);}
});
$('.fastforward').on('click', function(){if (shuffle === 'true'){shufflePlay();} else {switchTrack(++currentTrack);}
});
$('#playlist li').each(function(i){var _i = i;$(this).on('click', function(){switchTrack(_i);});
});if (shuffle === 'true') $('.shuffle').addClass('enable');
if (repeat == 1){$('.repeat').addClass('once');
} else if (repeat == 2){$('.repeat').addClass('all');
}$('.repeat').on('click', function(){if ($(this).hasClass('once')){repeat = localStorage.repeat = 2;$(this).removeClass('once').addClass('all');} else if ($(this).hasClass('all')){repeat = localStorage.repeat = 0;$(this).removeClass('all');} else {repeat = localStorage.repeat = 1;$(this).addClass('once');}
});$('.shuffle').on('click', function(){if ($(this).hasClass('enable')){shuffle = localStorage.shuffle = 'false';$(this).removeClass('enable');} else {shuffle = localStorage.shuffle = 'true';$(this).addClass('enable');}});
})(jQuery);