lkmusic项目完整代码以及使用离线存储优化
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html代码
<!DOCTYPE html><!--对离线存储进行支持--><html lang="zh-cmn-Hans" manifest="lkmusic.appcache"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="renderer" content="webkit"> <meta name="version" content="1.0.0"> <link rel="stylesheet" href="http://data.smohan.net/static/css/demo.css"> <link rel="stylesheet" href="static/css/smusic.css"/> <title>HTML5音乐播放器LKMusic</title></head><body><div class="grid-music-container f-usn"> <div class="m-music-play-wrap"> <div class="u-cover"></div> <div class="m-now-info"> <h1 class="u-music-title"><strong>标题</strong><small>歌手</small></h1> <div class="m-now-controls"> <div class="u-control u-process"> <span class="buffer-process"></span> <span class="current-process"></span> </div> <div class="u-control u-time">00:00/00:00</div> <div class="u-control u-volume"> <div class="volume-process" data-volume="0.50"> <span class="volume-current"></span> <span class="volume-bar"></span> <span class="volume-event"></span> </div> <a class="volume-control"></a> </div> </div> <div class="m-play-controls"> <a class="u-play-btn prev" title="上一曲"></a> <a class="u-play-btn ctrl-play play" title="暂停"></a> <a class="u-play-btn next" title="下一曲"></a> <a class="u-play-btn mode mode-list current" title="列表循环"></a> <a class="u-play-btn mode mode-random" title="随机播放"></a> <a class="u-play-btn mode mode-single" title="单曲循环"></a> </div> </div> </div> <div class="f-cb"> </div> <div class="m-music-list-wrap"></div> <div class="m-music-lyric-wrap"> <div class="inner"> <ul class="js-music-lyric-content"> <li class="eof">暂无歌词...</li> </ul> </div> </div></div><script src="js/musicList.js"></script><script src="js/lkmusic.js"></script><script>whenReady(function(){ new LMusic({ musicList : musicList, autoPlay : true, //是否自动播放 defaultMode : 2, //默认播放模式，随机 offlineMode:true, callback : function (obj) { //返回当前播放歌曲信息 } });});</script></body></html>css 代码（暂时参考的是smusic的css代码以后会优化和更新）
@charset "utf-8";/** * SMusic * Author:Smohan * Version:2.0.0 * url: http://www.smohan.net/lab/smusic.html * 使用请保留以上信息 *//*reset*/html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu{margin:0;padding:0;-webkit-tap-highlight-color:rgba(0,0,0,0);word-wrap: break-word;font-size: inherit;line-height: inherit;overflow: visible;}header,footer,section,article,aside,nav,address,figure,figcaption,menu,details{display:block;}.f-cb{height: 0;}.f-cb:after{display:block;content:" ";height:0;visibility:hidden;clear: both;}.f-ib{display:inline-block;}.f-din{display:inline;}.f-dn{display:none;}.f-db{display:block;}.f-fl{float:left;}.f-fr{float:right;}.f-fwn{font-weight:normal;}.f-fwb{font-weight:bold;}.f-tal{text-align:left;}.f-tac{text-align:center;}.f-tar{text-align:right;}.f-oh{overflow: hidden;zoom: 1;clear: both;}.f-tdn{text-decoration: none!important;}.f-vam,.f-vama *{vertical-align:middle;}.f-wsn{word-wrap:normal;white-space:nowrap;}.f-pre{overflow:hidden;text-align:left;white-space:pre-wrap;word-wrap:break-word;word-break:break-all;}.f-wwb{white-space:normal;word-wrap:break-word;word-break:break-all;}.f-ti{overflow:hidden;text-indent:-30000px;}.f-lhn{line-height:normal;}.f-toe{overflow:hidden;word-wrap:normal!important;white-space:nowrap;text-overflow:ellipsis;}.f-usn{-webkit-user-select:none;user-select:none;}.f-bsb{-webkit-box-sizing:border-box;box-sizing:border-box;}.f-cp{cursor: pointer}/*滚动条美化*/::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-button:vertical{display:none}::-webkit-scrollbar-track:vertical{background-color:transparent;}::-webkit-scrollbar-track-piece{background-color:transparent;}::-webkit-scrollbar-thumb:vertical{background-color:rgba(55,146,239,.3);border-radius:6px}::-webkit-scrollbar-thumb:vertical:hover,::-webkit-scrollbar-thumb:vertical:active {background-color: #2e86ef}html,body{ width: 100%; height: 100%; background-color: #3792ef; overflow: hidden; font-family: "Microsoft Yahei","微软雅黑","Helvetica Neue","Hiragino Sans GB",Helvetica,Tahoma,sans-serif;}/*SMusic*/.grid-music-container{ width: 520px; height: 276px; padding: 20px; position: relative; margin: 80px auto; background-color: rgba(255,255,255,.7); font-family: "Microsoft Yahei","微软雅黑","Helvetica Neue","Hiragino Sans GB",Helvetica,Tahoma,sans-serif; text-shadow: 1px 0 0 rgba(255,255,255,.7);}.grid-music-container .m-music-play-wrap{ height: 150px; position: relative; padding-left: 140px;}.grid-music-container .u-cover{ width: 121px; height: 121px; overflow: hidden; background: url(../images/music_icons.png) 0 0 no-repeat; position: absolute; top: 0; left: 0;}.grid-music-container .u-cover img{ display: block; width: 100%; height: auto; max-height: 100%; border-radius: 50%;}.grid-music-container .u-cover.play{ -webkit-animation: Circle 10s linear infinite 0s forwards; animation: Circle 10s linear infinite 0s forwards;}.grid-music-container .u-cover.paused{ -webkit-animation-play-state: paused; animation-play-state: paused;}@-webkit-keyframes Circle { from{ -webkit-transform: rotate(0deg); } to{ -webkit-transform: rotate(360deg); }}@keyframes Circle { from{ transform: rotate(0deg); } to{ transform: rotate(360deg); }}.grid-music-container .m-now-info{ height: 100%;}.grid-music-container .m-now-info h1{ font-weight: normal;}.grid-music-container .m-now-info h1 strong{ font-size: 18px; color: #111210; font-weight: normal;}.grid-music-container .m-now-info h1 small{ margin-left: 20px; font-size: 14px; color: #313230;}.grid-music-container .m-now-controls{ padding-top: 30px; position: relative;}.grid-music-container .m-now-controls .u-control{ display: inline-block; vertical-align:middle; font-size: 0; overflow: hidden;}.grid-music-container .m-now-controls .u-process{ width: 220px; height: 4px; position: relative; background-color: #cecfd4; cursor: pointer;}.grid-music-container .m-now-controls .u-process .buffer-process,.grid-music-container .m-now-controls .u-process .current-process{ display: block; width: 0; height: 4px; position: absolute; top:0; left: 0; background-color: #3792ef; z-index: 1;}.grid-music-container .m-now-controls .u-process .buffer-process{ z-index: 0; background-color: #c1c2c0;}.grid-music-container .m-now-controls .u-time{ margin-left: 10px; font-size: 12px; color: #585957;}.grid-music-container .m-now-controls .u-volume{ overflow: visible; text-align: center; position: relative; margin-left: 20px;}.grid-music-container .u-volume .volume-process{ width: 3px; height: 50px; background: #cecfd4; position: absolute; top: -54px; left: 6px; cursor: pointer; visibility: hidden; /*设置不可见性，最好不要使用display:none，不然高度很难获取*/}.grid-music-container .u-volume .volume-process.show{ visibility: visible;}.grid-music-container .u-volume .volume-process .volume-current,.grid-music-container .u-volume .volume-process .volume-event{ display: inline-block; width: 3px; height: 50%; background-color: #3792ef; position: absolute; left: 0; bottom:0; -webkit-transition: height .2s linear; transition: height .2s linear;}.grid-music-container .u-volume .volume-process .volume-event{ width: 21px; left: -10px; background: none; height: 100%; z-index: 1;}.grid-music-container .u-volume .volume-process .volume-bar{ display: inline-block; width: 8px; height: 8px; border-radius: 100%; background-color: #fff; border: 1px solid #a8a9a7; position: absolute; left: -3px; bottom: 50%; -webkit-transition: bottom .2s linear; transition: bottom .2s linear; /* z-index: 2;*/ /* opacity: 0;*/}.grid-music-container .u-volume .volume-process .volume-bar:hover,.grid-music-container .u-volume .volume-process .volume-bar:active{ background-color: #f1f2f0;}.grid-music-container .u-volume .volume-control{ display: inline-block; width: 18px; height: 18px; background: url(../images/music_icons.png) -140px -80px no-repeat; cursor: pointer;}.grid-music-container .u-volume .volume-control:hover{ background-position: -158px -80px;}.grid-music-container .u-volume .volume-control.muted{ background-position: -140px -98px;}.grid-music-container .u-volume .volume-control.muted:hover{ background-position: -158px -98px;}.grid-music-container .m-music-list-wrap{ margin-left: 135px; margin-right: 25px; height: 120px; border: 1px solid rgba(255,255,255,.7); overflow-x: hidden; overflow-y: auto;}.grid-music-container .m-music-list-wrap ul{}.grid-music-container .m-music-list-wrap li{ display: block; line-height: 30px; padding: 0 10px; cursor: pointer; color: #383937; font-size: 14px;}.grid-music-container .m-music-list-wrap li strong{ font-size: 16px; font-weight: normal;}.grid-music-container .m-music-list-wrap li:hover,.grid-music-container .m-music-list-wrap li.current{ background-color: rgba(255,255,255,.7); color: #3792ef;}.grid-music-container .m-music-list-wrap li.current{ background-color: transparent;}.grid-music-container .m-play-controls{ margin-top: 10px;}.grid-music-container .m-play-controls a{ display: inline-block; vertical-align: middle;}.grid-music-container .m-play-controls .u-play-btn{ display: inline-block; width: 30px; height: 30px; margin-right: 15px; cursor: pointer;}.u-play-btn{ background: url(../images/music_icons.png) -220px 0 no-repeat;}.u-play-btn.prev,.u-play-btn.next{ background-position: -220px 0;}.u-play-btn.prev:hover,.u-play-btn.next:hover{ background-position: -220px -36px;}.u-play-btn.prev{ -webkit-transform: rotate(-180deg); transform: rotate(-180deg);}.u-play-btn.play{ background-position: -250px 0;}.u-play-btn.play:hover{ background-position: -250px -36px;}.u-play-btn.paused{ background-position: -280px 0;}.u-play-btn.paused:hover{ background-position: -280px -36px;}.u-play-btn.mode{ width: 20px!important; height: 18px!important; margin-right: 10px!important;}.u-play-btn.mode-list{ background-position: -181px -98px; margin-left: 65px;}.u-play-btn.mode-list.current{ background-position: -221px -98px;}.u-play-btn.mode-random{ background-position: -201px -80px;}.u-play-btn.mode-random.current{ background-position: -241px -80px;}.u-play-btn.mode-single{ background-position: -181px -80px;}.u-play-btn.mode-single.current{ background-position: -221px -80px;}/*歌词*/.grid-music-container .m-music-lyric-wrap{ width: 220px; height: 100%; background-color: rgba(255,255,255,.7); position: absolute; right: -220px; top : 0; border-left: 1px solid #fff; overflow: hidden;}.grid-music-container .m-music-lyric-wrap .inner{ position: absolute; top:20px; left: 20px; right: 20px; bottom: 20px; overflow-x: hidden; overflow-y: auto;}.grid-music-container .m-music-lyric-wrap .inner ul{ position: absolute; width: 100%; top:0; left: 0; overflow: hidden; -webkit-transition: all .3s; transition: all .3s;}.grid-music-container .m-music-lyric-wrap ul li{ display: block; line-height: 30px; height: 30px; overflow: hidden; text-align: center; font-size: 13px; color: #666;}.grid-music-container .m-music-lyric-wrap ul li.current{ color: #2e86ef; font-size: 14px; font-weight: bold;}.grid-music-container .m-music-lyric-wrap ul li.eof{ height: 100%; line-height: 250px; font-size: 20px; color: #999;}js 代码
//自用工具库var whenReady = (function(){ var ready = false; var funcs = [];//存储函数的数组 function handler(e){ if(ready) return; if(e.type === 'readystatechange' && document.readyState !== 'commplete'){ return; } for(var i=0;i<funcs.length;i++){ funcs[i].call(document); } //进行标记 ready = true; funcs = null;//置空 } if(document.addEventListener){ document.addEventListener('DOMContentLoaded', handler,false); document.addEventListener('readystatechange', handler,false); window.addEventListener('load',handler,false); }else{ //兼容IE等不支持addEventListener方法的浏览器 document.attachEvent('onreadystatechange',handler); window.attachEvent('onload',handler); } return function isReady(f){ if(ready){ f.call(document); }else{ funcs.push(f); } }}());//基于smusic开源代码进行修改和加强(function(win){ //此音乐库采用全新的html5 api来对样式的增删改查进行操作 ie版本需要10.0以上 使用此音乐类库请特别注意低版本ie 已不再我的兼容列表里面 //至于为什么使用classList这个新的api 请参见张兴旭的一篇文章 http://www.zhangxinxu.com/wordpress/2013/07/domtokenlist-html5-dom-classlist-%E7%B1%BB%E5%90%8D/ //修正一下 实现了操作元素样式的操作类classList默认使用原生支持的api 否则使用模拟的api来进行实现 function classList(e){ if(e.classList){ //这里需要对classList的原生api进行一下加强 /* DOMTokenList.prototype.adds = function(tokens){ tokens.split(' ').forEach(function(token){ this.add(token); }); return this; };*/ return e.classList; }//如果原生支持classList这个api那么直接返回 else return new CSSClassList(e);//否则就伪造一个 } //CSSClassList 是一个模拟DOMTokenList的javascript类 function CSSClassList(e){ this.e = e; } //如果e.className 包含类名c则返回true；否则返回false CSSClassList.prototype.contains=function(c){ if(c.length ===0 || c.indexOf(' ')!==-1){ throw new Error("invalid class name: '"+c+"'"); } //首先是常规检查 var classes = this.e.className; if(!classes) return false;//e不含类名 if(classes === c) return true;//e有一个完全匹配的类名 //否则，把c自身看成一个单词,利用正则表达式搜索 //\b在正则表达式里面代表单词的边界 return classes.search('\\b'+c+'\\b') !== -1; }; //如果c不存在，将c添加到e.className中 CSSClassList.prototype.add = function(c){ if(this.contains(c)) return;//如果存在就直接返回 不需要再新增一个 var classes = this.e.className; if(classes && classes[classes.length-1] !== ' '){ c = ' '+c;//如果没有空格需要加上一个空格 } this.e.className +=c; }; //将在e.className中出现的c全部删除 CSSClassList.prototype.remove =function(c){ if(!this.contains(c))return;//如果类里面本来就没有就直接返回 //将所有作为单词的c和多余的尾随空格全部删除 var pattern = new RegExp('\\b'+c+'\\b\\s*','g'); this.e.className = this.e.className.replace(pattern,''); }; //如果c不存在，将c添加到e.className中，并且返回true //如果c存在，那么将在e.className中出现的所有c都删除，并返回false CSSClassList.prototype.toggle=function(c){ if(this.contains(c)){//如果e.className 包含c this.remove(c); //删除它 return false; }else{ //否则的话 this.add(c);//否则就添加c return true; } }; //返回 e.className本身 CSSClassList.prototype.toString = function(){ return this.e.className; }; //返回e.className 中的类名 是一个数组 CSSClassList.prototype.toArray = function(){ return this.e.className.match(/\b\w+\b/g) || []; } //禁用右键菜单函数 function forbidenRightMenu(){ document.oncontextmenu=function(){ return false; } document.onmousedown=function(){ } } //实现链式调用 /** * 实现基于jquery的链式调用 * @AuthorHTL * @DateTime 2016-04-08T14:46:18+0800 * @param {[type]} query [description] * @return {[type]} [description] */ function $(query){ return document.querySelector(query); } //实现基本拓展 /** * 实现继承 * @AuthorHTL * @DateTime 2016-04-08T14:46:43+0800 * @param {[type]} o [description] * @param {[type]} p [description] * @return {[type]} [description] */ function extend(o,p){ for(prop in p){ if(p.hasOwnProperty(prop)){ o[prop] = p[prop]; } } return o; } //实现计算时间 /** * 对时间进行格式化 * @AuthorHTL * @DateTime 2016-04-08T14:45:31+0800 * @param {[type]} time [description] * @return {[type]} [description] */ function calctime(time){ var hours,minutes,seconds,timer=''; hours = String(parseInt(time / 3600)); minutes = String(parseInt((time % 3600)/60)); seconds = String(parseInt((time % 60))); if(hours !== '0'){ if(hours.length === 1) hours ='0'+hours; timer+=(hours+':'); } if(minutes.length === 1 ){ minutes ='0'+minutes; } timer+=(minutes+":"); if(seconds.length === 1){ seconds = '0'+seconds; } timer+=seconds; return timer; } //var cover =classList($('.u-cover')).remove('u-cover'); //测试代码 //实现兼容各个浏览器的XMLHttpRequest if(win.XMLHttpRequest === undefined){ win.XMLHttpRequest = function(){ try{ return new ActiveXObject('Msxml2.XMLHTTP.6.0'); }catch(e1){ try{ return new ActiveXObject('Msxml2.XMLHTTP.3.0'); }catch(e2){ //否则就出错了 throw new Error('XMLHttpRequset is not supported!'); } } }; } //实现简单的ajax操作 /** * 简单的ajax封装 * @AuthorHTL * @DateTime 2016-04-08T14:45:10+0800 * @param {[type]} url [description] * @param {[type]} type [description] * @param {[type]} isasync [description] * @param {Function} callback [description] * @return {[type]} [description] */ function ajax(url,type,isasync,callback){ if(!url) return false; if(!type) type = 'GET'; if(!isasync) isasync = false; if(!callback) callback = function(result){ console.log(result); } var xhr = new XMLHttpRequest(); xhr.open(type,url,isasync);//这里要注意是否异步，如果是true那就是异步调用不会卡死浏览器 xhr.onreadystatechange = function(){ if(xhr.readyState === 4 && xhr.status=== 200){ var type = xhr.getResponseHeader('Content-Type'); if(type){ //检查类型 if(type.indexOf('xml') !== -1 && xhr.responseXML) callback(xhr.responseXML);//返回xml else if(type === 'application/json') callback(JSON.parse(xhr.responseText)); //如果是json那么就对json数据进行编码操作 else //直接返回字符串响应 callback(xhr.responseText); }else{ callback(xhr.responseText); } } }; xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");//让服务器判断是ajax请求还是属于普通请求 xhr.send(null);//发送请求 } //ajax('http://localhost:808/smusicmyversion/index.html'); 测试代码 var bufferTimer = null; /** * 构造函数 * @AuthorHTL * @DateTime 2016-04-08T14:44:48+0800 * @param {[type]} config [description] */ function LkMusic(config){ //配置参数 this.config = extend(this.config,config); this.musicList = this.config.musicList ||[]; this.musicLength = this.musicList.length; if(!this.musicLength){ this.musicDom.listWrap.innerHTML = '<p>暂无播放记录</p>'; } this.audioDom = null; this.init();//初始化播放器相关dom以及事件 } LkMusic.prototype ={ config:{ musicList:[],//播放列表 defaultVolume:0.5,//默认音量大小 0-1.0之间 defaultIndex:0,//播放列表索引 autoPlay:false,//是否默认自动播放 defaultMode:1,//播放模式 随机播放 按顺序播放 还是循环播放 bufferTime:1000,//缓冲的计时器时间 offlineMode:false, //是否支持离线缓存 showrightmenu:false, callback:function(obj){ } }, /** * 根据列表数组创建列表(以后可以使用List数据结构) * @AuthorHTL * @DateTime 2016-04-08T15:31:33+0800 * @return {[type]} [description] */ createListDom:function(){ var i =0,ul='<ul>'; for (var i = 0; i < this.musicLength; i++) { ul += '<li><strong>'+this.musicList[i]['title']+'</strong> -- <small>'+this.musicList[i]['singer']+'</small></li>'; } ul += '</ul>'; this.musicDom.listWrap.innerHTML = ul; }, /** * 重置播放器 * @AuthorHTL * @DateTime 2016-04-15T11:21:32+0800 * @param {[type]} idx [description] * @return {[type]} [description] */ resetPlayer:function(idx){ (idx >= (this.musicLength-1)) && (idx = this.musicLength-1); (idx <=0) && (idx =0); var _this = this;playlist this.currentMusic = idx; var nowMusic = this.musicList[idx]; var tempBuffer = function (){ return _this.setBuffer(this,_this.musicDom.bufferProcess); }; this.audioDom.removeEventListener('canplay',tempBuffer,false); clearInterval(bufferTimer); this.musicDom.bufferProcess.style.width = 0+'px'; this.musicDom.curProcess.style.width = 0 + 'px'; this.audioDom.src = nowMusic.src; this.musicDom.cover.innerHTML = '<img src="'+nowMusic.cover+'" title="'+nowMusic.title + ' -- '+ nowMusic.singer + '">'; this.musicDom.title.innerHTML = '<strong>'+nowMusic.title+'</strong><small>'+nowMusic.singer+'</small>'; this.musicDom["lyricWrap"].innerHTML = '<li class="eof">正在加载歌词...</li>'; this.musicDom["lyricWrap"].style.marginTop = 0 + "px"; this.musicDom["lyricWrap"].scrollTop = 0; this.getLyric(idx); //设置播放列表选中 var playlist = document.querySelectorAll('.m-music-list-wrap li'), i = 0; for (var i = 0; i < this.musicLength; i++) { if (i === idx) { var cl = new classList(playlist[i]); cl.add('current'); }else{ var cl = new classList(playlist[i]); cl.remove('current'); } } this.audioDom.addEventListener('canplay',tempBuffer,false); if(this.config.autoPlay){ this.play(); }else{ this.pause(); } var _callback = nowMusic; _callback.index = idx; typeof this.config.callback === 'function' && this.config.callback(_callback); }, /** * 控制音量播放 * @AuthorHTL * @DateTime 2016-04-15T11:31:58+0800 * @param {[type]} volume [description] */ setVolume:function(volume){ var v = this.musicDom.volume,h=v.volumeEventer.offsetHeight||50; (volume >=1) && (volume = 1); (volume <=0) && (volume = 0); this.audioDom.volume = volume; var currentHeight = h*volume;//获取当前的音量高度 v.volumeCurrent.style.height = currentHeight +'px'; v.volumeCtrlBar.style.bottom = currentHeight +'px'; v.volumeProcess.setAttribute('data-volume', volume); if(volume === 0){ var cl = new classList(v.volumeControl); cl.add('muted'); this.audioDom.muted = true; }else{ var cl = new classList(v.volumeControl); cl.remove('muted'); this.audioDom.muted = false; } }, /** * 初始化播放 * @AuthorHTL * @DateTime 2016-04-15T13:54:55+0800 * @return {[type]} [description] */ initPlay:function(){ var idx = this.config.defaultIndex; if(this.config.defaultMode === 2){ //随机播放 idx = this.getRandomIndex(); } //设置默认音量大小 this.audioDom.volume = this.config.defaultVolume; this.audioDom.load(); this.resetPlayer(idx); }, /** * 播放音乐 * @AuthorHTL * @DateTime 2016-04-15T14:09:29+0800 * @return {[type]} [description] */ play:function(){ var ctrl = this.musicDom.button.ctrl; this.audioDom.play(); var ctrllist = new classList(ctrl); ctrllist.remove('paused'); ctrllist.add('play'); ctrl.setAttribute('title', '暂停'); var coverlist = new classList(this.musicDom.cover); coverlist.remove('paused'); coverlist.add('play'); }, /** * 暂停音乐 * @AuthorHTL * @DateTime 2016-04-15T14:09:38+0800 * @return {[type]} [description] */ pause:function(){ var ctrl = this.musicDom.button.ctrl; this.audioDom.pause(); var ctrllist = new classList(ctrl); ctrllist.remove('play'); ctrllist.add('paused'); ctrl.setAttribute('title', '播放'); var coverlist = new classList(this.musicDom.cover); coverlist.remove('play'); coverlist.add('paused'); }, /** * 获取随机索引 * @AuthorHTL * @DateTime 2016-04-15T13:59:03+0800 * @return {[type]} [description] */ getRandomIndex:function(){ var idx = this.currentMusic,len = this.musicLength,i=0,temp=[]; //将不是当前播放的推入到新的temp数组之中 for (var i = 0; i < len; i++) { if(i !== idx){ temp.push(i); } } var random = parseInt(Math.random() * temp.length); return temp[random]; }, /** * 根据播放模式来进行播放 * @AuthorHTL * @DateTime 2016-04-15T14:41:01+0800 * @param {[type]} type [description] * @return {[type]} [description] */ playByMode:function(type){ var mode = this.playMode, idx = this.currentMusic, len = this.musicLength, index = idx; switch (mode) { case 1: if(type === 'prev'){ index = ((idx<=len-1)&&(idx>0))?(idx-1):(len-1); }else if(type === 'next' || type ==='ended'){ index = (idx >= len-1) ? 0 : (idx-1);//这种是三元运算符 } break; case 2: index = this.getRandomIndex();//随机获取index break; case 3: if(type === 'prev'){ index = ((idx<=len-1)&&(idx>0))?(idx-1):(len-1); }else if(type === 'next'){ index = (idx >= len-1) ? 0 : (idx-1);//这种是三元运算符 }else{ index = idx; } break; default: //empty code here break; } this.resetPlayer(index); }, initRightPanel:function(options){ this.musicDom.music.addEventListener('',function(event){ event = event || window.event; }); }, /** * 一些操作 * @AuthorHTL * @DateTime 2016-04-15T14:53:39+0800 * @return {[type]} [description] */ action:function(){ //这里为什么要用_this 这个要明白this在不同地方的指向不一样 var _this = this,v = this.musicDom.volume,btn=this.musicDom.button; this.audioDom.addEventListener('timeupdate',function(event){ var audio = this;//指向this.audioDom if (!isNaN(audio.duration)) { var currenttime = calctime(audio.currentTime), totaltime = calctime(audio.duration); var currentProcess = (audio.currentTime/audio.duration) *(_this.musicDom.bufferProcess.parentNode.offsetWidth); _this.musicDom.time.innerHTML = ''+currenttime+'/'+totaltime; _this.musicDom.curProcess.style.width = currentProcess +"px"; //歌词进度 var curTime = parseInt(audio.currentTime*1e3);//这里不能跟着smusic那样写不然会出很大的错误 var lyrics = _this.musicDom['lyricWrap'].querySelectorAll('.u-lyric'), sizes = lyrics.length, i =0; if(sizes >1){ for(;i<sizes;i++){ var lyl = lyrics[i]; var cl = new classList(lyl); if(lyl){ var _time = parseFloat(lyl.getAttribute('data-time')); if(curTime >= _time){ var top = (i-1) *30;//30是每个LI的高度 _this.musicDom['lyricWrap'].style.marginTop = -top +'px'; //移除之前的current for(var j =0;j<sizes;j++){ var cl1 = new classList(lyrics[j]); lyrics[j] && cl1.remove('current'); } cl.add('current'); } } } } } },false); //当播放完成后恢复到原始状态 this.audioDom.addEventListener('ended',function(){ _this.playByMode('ended'); },false); //音量控制器 静音和回复播放 v.volumeControl.addEventListener('click',function(event){ event = event || window.event; event.stopPropagation();//阻止冒泡 var cl = new classList(v.volumeProcess); if(cl.contains('show')){ cl.toggle('muted'); cl.contains('muted') ?(_this.audioDom.muted = true) :(_this.audioDom.muted = false); }else{ cl.add('show'); } },false); //当点击文档空白区域的时候隐藏音量调节器 document.addEventListener('click', function(event){ event = event || window.event; event.stopPropagation(); var target = event.target || event.srcElement; var cl = new classList(v.volumeProcess); if((target.parentNode !== v.volumeProcess) && target.parentNode !==$('.grid-music-container .u-volume')){ cl.remove('show'); } },false); //绑定音量调节器 v.volumeEventer.addEventListener('click',function(event){ event = event || window.event; event.stopPropagation(); var h = this.offsetHeight, y = event.offsetY, volume = (h-y)/h; _this.setVolume(volume); },false); //绑定简单的播放列表以后我们使用数据结构的list来进行实现 var playlist = document.querySelectorAll('.m-music-list-wrap li'),i=0; for(;i<_this.musicLength;i++){ !(function(i){ playlist[i].addEventListener('click',function(){ _this.resetPlayer(i); },false); }(i) ); } //绑定播放按钮 btn.ctrl.addEventListener('click',function(){ var cl = new classList(btn.ctrl); if(cl.contains('play')){ _this.pause(); }else{ _this.play(); } },false); //绑定下一曲 btn.prev.addEventListener('click',function(){ _this.playByMode('prev'); },false); //绑定下一曲 btn.next.addEventListener('click',function(){ _this.playByMode('next'); },false); //这里我们还要根据外部配置或者默认配置的播放模式进行 switch (_this.playMode){ case 1: var cl = new classList(btn.listCircular); cl.add('current'); var cl1 = new classList(btn.singleCircular); cl1.remove('current'); var cl2 = new classList(btn.randomPlay); cl2.remove('current'); break; case 2: var cl = new classList(btn.randomPlay); cl.add('current'); var cl1 = new classList(btn.listCircular); cl1.remove('current'); var cl2 = new classList(btn.singleCircular); cl2.remove('current'); break; case 3: var cl = new classList(btn.singleCircular); cl.add('current'); var cl1 = new classList(btn.listCircular); cl1.remove('current'); var cl2 = new classList(btn.randomPlay); cl2.remove('current'); break; default: //empty code here break; } //绑定列表循环 btn.listCircular.addEventListener('click',function(){ var cl = new classList(this); cl.add('current'); var cl1 = new classList(btn.singleCircular); cl1.remove('current'); var cl2 = new classList(btn.randomPlay); cl2.remove('current'); _this.playMode = 1; },false); //绑定随机播放按钮 btn.randomPlay.addEventListener('click',function(){ var cl = new classList(this); cl.add('current'); var cl1 = new classList(btn.listCircular); cl1.remove('current'); var cl2 = new classList(btn.singleCircular); cl2.remove('current'); _this.playMode = 3; },false); //绑定单曲循环 btn.singleCircular.addEventListener('click',function(){ var cl = new classList(this); cl.add('current'); var cl1 = new classList(btn.listCircular); cl1.remove('current'); var cl2 = new classList(btn.randomPlay); cl2.remove('current'); _this.playMode = 3; }); //拖动进度条 var $progress = this.musicDom['curProcess'].parentNode; $progress.addEventListener('click',function(event){ event = event || window.event; var left = this.getBoundingClientRect().left,width = this.offsetWidth; var progressX = Math.min(width,Math.abs(event.clientX - left));//防止超出范围 //这里要特别注意不能讲currentTime 写成了currenttime if(_this.audioDom.currentTime && _this.audioDom.duration){ _this.audioDom.currentTime = parseInt((progressX/width) *(_this.audioDom.duration)); _this.play(); } }); }, /** * 缓冲加载 * @AuthorHTL * @DateTime 2016-04-08T15:41:55+0800 * @param {[type]} audio [description] * @param {[type]} bufferDom [description] */ setBuffer:function(audio,bufferDom){ var w = bufferDom.parentNode.offsetWidth; bufferTimer = setInterval(function(){ var buffer = audio.buffered.length; if(buffer>0 && audio.buffered !==undefined){ var bufferWidth = (audio.buffered.end(buffer-1)/audio.duration)*w; bufferDom.style.width = bufferWidth+'px'; if(Math.abs(audio.duration-audio.buffered.end(buffer-1))<1){ bufferDom.style.width = w +'px'; clearInterval(bufferTimer); } } },this.config.bufferTime); }, /** * 获取歌词 * @AuthorHTL * @DateTime 2016-04-14T16:48:12+0800 * @param {[type]} index [description] * @return {[type]} [description] */ getLyric:function(index){ var _this = this; if(this.lyricCache[index]){ this.renderLyric(this.lyricCache[index]); }else{ var url = this.musicList[index]["lyric"]; if(url){ ajax(url,'GET',true,function(lrc){ var lyric = _this.parseLyric(lrc); _this.lyricCache[index] = lyric ? lyric : null; _this.renderLyric(lyric); }) }else{ this.lyricCache[index] = null; this.renderLyric(null); } } }, /** * 渲染歌词 * @AuthorHTL * @DateTime 2016-04-14T16:48:23+0800 * @param {[type]} lyric [description] * @return {[type]} [description] */ renderLyric:function(lyric){ var dom = this.musicDom["lyricWrap"], tpl = ""; if(lyric){ for(var k in lyric){ var txt = lyric[k] ? lyric[k] :'--- lkmusic ---'; tpl += '<li class="u-lyric f-toe" data-time="'+k+'">'+txt+'</li>'; } tpl && (tpl += '<li class="u-lyric">www.laijiadayuan.com</li>'); }else{ tpl = '<li class="eof">暂无歌词...</li>'; } dom.style.marginTop = 0 + "px"; dom.screenTop = 0; dom.innerHTML = tpl; }, /** * 解析歌词 * @AuthorHTL * @DateTime 2016-04-14T15:29:02+0800 * @param {[type]} lrc [description] * @return {[type]} [description] */ /* [00:00.91]小苹果 [00:01.75]作词：王太利 作曲：王太利 [00:02.47]演唱：筷子兄弟 */ parseLyric:function (lrc){ var lyrics = lrc.split("["); var lrcObj = {}; for(var i=0;i<lyrics.length;i++){ var lyric = decodeURIComponent(lyrics[i]); var timeReg = /\d*:\d*((\.|\:)\d*)*\]/g; var timeRegExpArr = lyric.match(timeReg); if(!timeRegExpArr)continue; var clause = lyric.replace(timeReg,''); for(var k = 0,h = timeRegExpArr.length;k < h;k++) { var t = timeRegExpArr[k]; var min = Number(String(t.match(/\d*/i)).slice(1)), sec = Number(String(t.match(/\:\d*/i)).slice(1)); var time = (min * 60 + sec)*1e3;//必须转换成毫秒才行 lrcObj[time] = clause; } } return lrcObj; }, /** * 初始化播放器 * @AuthorHTL * @DateTime 2016-04-14T15:29:02+0800 * @return null [description] */ init:function(){ //缓存DOM结构 this.musicDom = { music : $('.grid-music-container'), cover : $('.grid-music-container .u-cover'), title : $('.grid-music-container .u-music-title'), curProcess : $('.grid-music-container .current-process'), bufferProcess : $('.grid-music-container .buffer-process'), time : $('.grid-music-container .u-time'), listWrap : $('.grid-music-container .m-music-list-wrap'), lyricWrap : $('.grid-music-container .js-music-lyric-content'), //歌词区域 volume : { volumeProcess : $('.grid-music-container .volume-process'), volumeCurrent : $('.grid-music-container .volume-current'), volumeCtrlBar : $('.grid-music-container .volume-bar'), volumeEventer : $('.grid-music-container .volume-event'), //主要作用于绑定事件，扩大了音量的触发范围 volumeControl : $('.grid-music-container .volume-control') }, button : { ctrl : $('.grid-music-container .ctrl-play'), prev : $('.grid-music-container .prev'), next : $('.grid-music-container .next'), listCircular : $('.grid-music-container .mode-list'), //列表循环 randomPlay : $('.grid-music-container .mode-random'), //随机循环 singleCircular : $('.grid-music-container .mode-single') //单曲循环 } }; this.currentMusic = this.config.defaultIndex ||0; this.playMode = this.config.defaultMode||1; this.lyricCache = {}; this.audioDom = document.createElement('audio'); this.createListDom(); this.initPlay(); this.action(); if(!this.config.showrightmenu){ forbidenRightMenu(); } //支持离线缓存 （可以配置lkmusic.appcache） if(this.config.offlineMode){ document.documentElement.setAttribute('manifest','lkmusic.appcache'); }//此功能暂时不起作用 因为必须把这个manifest先写在html中 } }; win = win || window; win.LMusic = function(options){ return new LkMusic(options); };})(window);离线存储文件配置lkmusic.appcache
CACHE MANIFEST# lkmusic version 3CACHE:index.htmljs/lkmusic.jsjs/musicList.jsstatic/css/smusic.cssstatic/images/music_bg.jpgstatic/images/music_cover.jpgstatic/images/music_icons.pngstatic/xihuanlianggeren.mp3static/xihuanlianggeren.lrcstatic/yuebanxiaoyequ.mp3static/yuebanxiaoyequ.lrcstatic/laopengyou.mp3static/laopengyou.lrchttp://data.smohan.net/static/css/demo.css 0 0
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