lrc.js

睡衣网部分源代码 一次偶然机会 被我下载了下来

curr_ko=null;
function LRCClass(){ 
	var XMLHTTP	= null;
	var FORMAT_LRC	= 1;
	var FORMAT_SMI	= 2;
	var FORMAT_DEF  = 3;
	var player	= null;
	var playertype	= "mediaplayer";
	var url 	= "";
	var output	= "";
	var content	= "";
	var LRC		= new Array();
	this.ddeLRC = new Array();
	var format	= FORMAT_LRC;
	this.fixTime = 0;
	this.lrctimer 	= null;
	this.flag		= "";
	this.dispaly=1;
	this.scObj="scrollId";
	this.scLength=15;
	
	if(arguments.length>=1)	this.setPlayer(arguments[0]);
	if(arguments.length>=2)	this.setURL(arguments[1]);
	if(arguments.length>=3)	this.setOutput(arguments[2]);
	if(arguments.length>=4)	this.setDisplayType(arguments[3]);
	if(arguments.length>=5)	this.setScrollId(arguments[4]);
	if(arguments.length>=6)	this.setScLength(arguments[5]);
}

LRCClass.prototype.setPlayer=function(){
	if(arguments.length>=1){
		arg	= arguments[0];
		if(typeof(arg)=="string")	this.player	= document.getElementById(arg);
		else if(typeof(arg)=="object")	this.player	= arg;
	}
}

LRCClass.prototype.getPlayer=function(){
	if( typeof(this.player)=='object')	return this.player;
	else	return null;
}

LRCClass.prototype.setURL=function(){
	if(arguments.length>=1){
		this.url = arguments[0];
		this.LRC="";
		this.LRC = new Array();
		this.ddeLRC = new Array();
	}
}

LRCClass.prototype.getURL=function(){
	return this.url;
}

LRCClass.prototype.setDisplayType=function(dtype){
	this.display=dtype;
}
LRCClass.prototype.getDisplayType=function(){
	return this.display;
}

LRCClass.prototype.setScrollId=function(sid){
if(typeof(sid)=="string")	this.scObj	= document.getElementById(sid)
	else if(typeof(sid)=="object")	this.scObj	= sid;
	
	//alert(this.scObj);
}
LRCClass.prototype.getScrollId=function(){
	return this.scObj;
}

LRCClass.prototype.setScLength=function(sLength){
	this.scLength=sLength;
}
LRCClass.prototype.getScLength=function(){
	return this.scLength;
}

LRCClass.prototype.setContent=function(){
	if(arguments.length>=1){
		this.content = arguments[0];
	}
}

LRCClass.prototype.getContent=function(){
	return this.content;
}

LRCClass.prototype.setLRC=function(){
	if(arguments.length>=1){
		this.LRC = arguments[0];
	}
}

LRCClass.prototype.getLRC=function(){
	return this.LRC;
}

LRCClass.prototype.setOutput=function(str){
		this.output	= str;
}

LRCClass.prototype.getOutput=function(){
    if(this.output!=""){
        arg = this.output;
        if(typeof(arg)=="string")   return document.getElementById(arg);
        else if(typeof(arg)=="object")  return arg;
    }
	alert("can not found ouput area");
	return null;
}

LRCClass.prototype.transformLRC=function(){
	try{	
	if(this.getContent().length>0){
    		isGeci=true;
    	}else{
    		isGeci=false;
    	}
	}catch(e){}
	if( this.getContent()==null || this.getContent()=="" ){return;}
	
	if( this.format	== this.FORMAT_LRC ){
		lines	= this.getContent().split("\n");
		arr	= new Array();
		str="";
		for(i=0;i<lines.length;i++){
			this.pushLine(trim(lines[i]));					
		}		
		this.ddeLRC.sort();	

        var mm = "aaa";		
        for(var i=this.ddeLRC.length-1;i>=0;i--){
        	if(this.ddeLRC[i]==mm){
        		mm = this.ddeLRC[i];
        		this.ddeLRC.splice(i,1);
        	}else{
        		mm = this.ddeLRC[i];
        	}
        }		

		if(this.ddeLRC.length>0){//LRC
			isLRC=true;
			if(nonLRCHandle) clearTimeout(nonLRCHandle);
			if(typeof(scrollId)!='undefined'){
				scrollId.style.overflow='hidden';
				scrollId.scrollTop=0;
			}
		}else{
			isLRC=false;
			if(typeof(scrollId)!='undefined'){
				scrollId.style.overflow='auto';
				scrollId.scrollTop=0;
			}
			nonLRC();
		}
		lasttime = 0;
		idx	= 0;
		for(i=0;i<this.ddeLRC.length;i++){
			if(this.ddeLRC[i].length>9){
				_time = getLyrcTime(this.ddeLRC[i]);
				_lrc  = getLyrc(this.ddeLRC[i]);
				if(_time<lasttime) {
					continue;
				}
				lasttime = _time;
				var dde = new LRCItem(_time,_lrc);
				arr[idx++]	= dde;
				str+="arr["+(idx-1)+"]="+this.ddeLRC[i]+"...."+dde.time+"::"+dde.content+"\r\n";
			}
		}
		 var dde = new LRCItem(3600,"The End...");
		arr[idx]= dde;		
		this.setLRC(arr);
	}else{
		return;
	}
}

function trim(str)
{
     return str.replace(/^\s*|\s*$/g,"");
}

function LRCClass.prototype.pushLine(line){
	supper = this;
    mm      = line.split("]");
	if(mm.length>=2){	      
		  text  = mm[mm.length-1];
		  for(j=0;j<mm.length-1;j++){				
				lrcTime    = formatTime(mm[j]+"]");			
				supper.ddeLRC.push(lrcTime+""+text);
		  }		  
	}
}

function formatTime(str){
    return str;
}

function printDdeLRC(){
	s	= "";
	for(i=0;i<supper.ddeLRC.length;i++){
		s += supper.ddeLRC[i]+"\r\n";
	}
}

LRCClass.prototype.syncLRC=function(){
	try{
	var xmlhttp=false;
	var str = "";
	try {
		 xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} 
	catch (e) 
	{
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} 
		catch (E) {
			xmlhttp = false;
		}
	}
	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	supper	= this;
	var uu	= this.getURL();
	if (trim(uu)==""||typeof(uu)=='undefined'){
		this.supper.setContent("");
		//DataInfo.lrcState = 0;
		return ;
	}
	
	xmlhttp.open("GET", uu,true);
	supper	= this;
	xmlhttp.onreadystatechange=function()
	{
		try{			
			if (xmlhttp.readyState==4) {					
				if(xmlhttp.status<400){
					str	= unescape(xmlhttp.responseText);
					if (str.indexOf("<title>无法找到网页</title>")>-1){
						return ;
					}
					if(str=="") {
					     document.getElementById("contentLRC").innerHTML = "暂没找到歌词！";
					 }
					this.supper.setContent(str);
				}
				else{ 
				}					
			}
		}
		catch(eee){}
	}
	xmlhttp.send();        
	}catch(ee){}
}

LRCClass.prototype.start=function(){
	this.flag = "start";
	supper	= this;
	supper.output.innerHTML="欢迎使用SentFun音乐搜藏家……";
	pp	= supper.getPlayer();
	
	this.lrctimer	= window.setTimeout("detectSpeed(supper.getPlayer(),supper)",500);	
}

LRCClass.prototype.destroy=function(){
	this.flag = "stop";
	if(this.lrctimer) clearTimeout(this.lrctimer);
	this.url = "";
	this.content="";
	this.LRC="";
	this.LRC = new Array();
	this.LRC.length=0;
	this.ddeLRC = new Array();
	this.ddeLRC.length=0;
}

LRCClass.prototype.stop=function(){
	this.flag = "stop";
	if(this.lrctimer) clearTimeout(this.lrctimer);
}

function detectSpeed(player,ko){
  try{
  KO	= ko;
	var pp	= player;
	if(typeof(pp)=="string")	pp	= document.getElementById(pp);
	if( ko.flag == "stop" ){
		where   = ko.getOutput();
		if(where) where.innerHTML="欢迎使用SentFun音乐搜藏家……";
	}else{
		this.lrctimer = window.setTimeout("detectSpeed(pp,KO)",1000);
	}
		if(ko.getDisplayType()==0){
			syncShowLyrc(KO);
		}else{
			syncVShowLyrc(KO);
		}
 }catch(E){document.title="Error..."+E.toString();}
}

function syncShowLyrc(ko){
try{
	loader2	= ko.getPlayer();
	where	= ko.getOutput();
	if(loader2){
		curtime	= loader2.controls.CurrentPosition;
		lrcs	= ko.getLRC();
		if( typeof(lrcs)=='undefined' || lrcs.length==0 ){
			ko.transformLRC();
			lrcs	= ko.getLRC();
		}
		for(j=0;j<lrcs.length;j++){
			var lrc	= lrcs[j];
			var nextlrc	= lrcs[(j<lrcs.length-1)?j+1:j];
			t1=lrc.time+ko.fixTime;
			t2=nextlrc.time+ko.fixTime;
			if(t1<=curtime&&curtime<t2){
				if(lrc.content)
					where.innerHTML=lrc.content;
					return;
			}
		}
	}
	}catch(E){document.title="syncShowLyrc="+E.toString();}	
}

var last_match_line_seq = -1;
function syncVShowLyrc(ko){
try{
		loader2	= ko.getPlayer();
		where	= ko.getOutput();
		scid= ko.getScrollId();
		sLength=ko.getScLength();
		if(loader2){			
			lrcs	= ko.getLRC();			
			//curtime	= loader2.currentPosition;
			curtime	= loader2.controls.currentPosition;
			if( typeof(lrcs)=='undefined' || lrcs.length==0 ){
				ko.transformLRC();
				lrcs	= ko.getLRC();
			}
			
			if(isLRC&&nonLRCHandle) clearTimeout(nonLRCHandle);
			var temp="";
			var tmp_seq=0;

			for(j=0;j<lrcs.length;j++){
				var lrc	= lrcs[j];
				var nextlrc	= lrcs[(j<lrcs.length-1)?j+1:j];
				t1=lrc.time+ko.fixTime;
				t2=nextlrc.time+ko.fixTime;
				//alert(t1+'--'+curtime+'--'+t2)
				if(t1<=curtime&&curtime<t2){
					tmp_seq = j;
					temp+="<span style='height:20px; line-height:20px;font-weight:bold;font-size:12px;margin-left:18px'>&nbsp;<span class='red1'>"+trim(lrcs[j].content)+"</span></span><br>"
					if(typeof(scrollId)!='undefined') {scrollId.scrollTop=j*sLength;}
				}else{
					temp+="<span style='height:20px; line-height:20px;margin-left:22px'>"+lrc.content+"</span><br>"
				}	
			}
			if(where&&isGeci&&isLRC) {
				if(last_match_line_seq != tmp_seq){where.innerHTML=temp}
			}
			last_match_line_seq = tmp_seq;
			if(!isGeci){
				if(typeof(scrollId)!='undefined'){
         		   	scrollId.style.overflow='hidden';
            		scrollId.scrollTop=0;
        		}
				staticLRC.innerHTML='<br>暂无LRC歌词，<a href="http://search.sogua.com/lyric.asp?key='+escape(DataInfo.singer)+' '+ escape(DataInfo.song) +'" target="_blank">点击搜索TXT歌词</a>&nbsp;<a href=http://music.sogua.com/service/lrcadd.asp?id='+DataInfo.sid+'&song='+escape(DataInfo.song)+'&singer='+escape(DataInfo.singer)+' target=_blank><font color=#FF0000>网友添加歌词</font></a>';
				if(nonLRCHandle) clearTimeout(nonLRCHandle);
			}
		}
	}catch(E){
		document.title="syncVShowLyrc="+E.toString();
	}
}

function LRCItem(){
	var time = -1;
	var content = "";
	if(arguments.length>=2){
		this.time 	= arguments[0];
		this.content	= arguments[1];
	}
}


function getLyrc(str){
		
		try{
				_ar	= str.split("]");
				return _ar[_ar.length-1];
		}catch(E){
		}
		return "";
}

function getLyrcTime(str){
		try{
				t	= str.split("]")[0].split("[")[1];
				mm	= t.split(":");
				if(mm.length<2) return 0;		
				min	= mm[1].split(".")[0];
				
				t	= parseInt(mm[0])*60+parseFloat(min);
				if(!isNaN(t)) return t;
		}catch(E){
			//alert(E);
		}
		return 0;
}