lkmusic项目完整代码以及使用离线存储优化
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 3
CACHE:
index.html
js/lkmusic.js
js/musicList.js
static/css/smusic.css
static/images/music_bg.jpg
static/images/music_cover.jpg
static/images/music_icons.png
static/xihuanlianggeren.mp3
static/xihuanlianggeren.lrc
static/yuebanxiaoyequ.mp3
static/yuebanxiaoyequ.lrc
static/laopengyou.mp3
static/laopengyou.lrc
http://data.smohan.net/static/css/demo.css