/*
 * Comet4J JavaScript Client V0.1.0
 * Copyright(c) 2011, jinghai.xiao@gamil.com.
 * http://code.google.com/p/comet4j/
 * This code is licensed under BSD license. Use it as you wish, 
 * but keep this copyright intact.
 */


var JS={version:'0.0.2'};JS.Runtime=(function(){var ua=navigator.userAgent.toLowerCase(),check=function(r){return r.test(ua);},isOpera=check(/opera/),isFirefox=check(/firefox/),isChrome=check(/chrome/),isWebKit=check(/webkit/),isSafari=!isChrome&&check(/safari/),isSafari2=isSafari&&check(/applewebkit\/4/),isSafari3=isSafari&&check(/version\/3/),isSafari4=isSafari&&check(/version\/4/),isIE=!isOpera&&check(/msie/),isIE7=isIE&&check(/msie 7/),isIE8=isIE&&check(/msie 8/),isIE6=isIE&&!isIE7&&!isIE8,isGecko=!isWebKit&&check(/gecko/),isGecko2=isGecko&&check(/rv:1\.8/),isGecko3=isGecko&&check(/rv:1\.9/),isWindows=check(/windows|win32/),isMac=check(/macintosh|mac os x/),isAir=check(/adobeair/),isLinux=check(/linux/);return{isOpera:isOpera,isFirefox:isFirefox,isChrome:isChrome,isWebKit:isWebKit,isSafari:isSafari,isSafari2:isSafari2,isSafari3:isSafari3,isSafari4:isSafari4,isIE:isIE,isIE7:isIE7,isIE8:isIE8,isIE6:isIE6,isGecko:isGecko,isGecko2:isGecko2,isGecko3:isGecko3,isWindows:isWindows,isMac:isMac,isAir:isAir,isLinux:isLinux};}());JS.isOpera=JS.Runtime.isOpera;JS.isFirefox=JS.Runtime.isFirefox;JS.isChrome=JS.Runtime.isChrome;JS.isWebKit=JS.Runtime.isWebKit;JS.isSafari=JS.Runtime.isSafari;JS.isSafari2=JS.Runtime.isSafari2;JS.isSafari3=JS.Runtime.isSafari3;JS.isSafari4=JS.Runtime.isSafari4;JS.isIE=JS.Runtime.isIE;JS.isIE7=JS.Runtime.isIE7;JS.isIE8=JS.Runtime.isIE8;JS.isIE6=JS.Runtime.isIE6;JS.isGecko=JS.Runtime.isGecko;JS.isGecko2=JS.Runtime.isGecko2;JS.isGecko3=JS.Runtime.isGecko3;JS.isWindows=JS.Runtime.isWindows;JS.isMac=JS.Runtime.isMac;JS.isAir=JS.Runtime.isAir;JS.isLinux=JS.Runtime.isLinux;JS.Syntax={nameSpace:function(){if(arguments.length){var o,d,v;for(var i=0,len=arguments.length;i<len;i++){v=arguments[i];if(!v){continue;}
d=v.split(".");for(var j=0,len=d.length;j<len;j++){if(!d[j]){continue;}
o=window[d[j]]=window[d[j]]||{};}}}
return o;},apply:function(o,c,defaults){if(defaults){JS.Syntax.apply(o,defaults);}
if(o&&c&&typeof c=='object'){for(var p in c){o[p]=c[p];}}
return o;},override:function(origclass,overrides){if(overrides){var p=origclass.prototype;JS.Syntax.apply(p,overrides);if(JS.Runtime.isIE&&overrides.hasOwnProperty('toString')){p.toString=overrides.toString;}}},extend:function(){var io=function(o){for(var m in o){this[m]=o[m];}};var oc=Object.prototype.constructor;return function(sb,sp,overrides){if(JS.Syntax.isObject(sp)){overrides=sp;sp=sb;sb=overrides.constructor!=oc?overrides.constructor:function(){sp.apply(this,arguments);};}
var F=function(){},sbp,spp=sp.prototype;F.prototype=spp;sbp=sb.prototype=new F();sbp.constructor=sb;sb.superclass=spp;if(spp.constructor==oc){spp.constructor=sp;}
sb.override=function(o){JS.Syntax.override(sb,o);};sbp.superclass=sbp.supr=(function(){return spp;});sbp.override=io;JS.Syntax.override(sb,overrides);sb.extend=function(o){return JS.Syntax.extend(sb,o);};return sb;};}(),callBack:function(fn,scope,arg){if(JS.isFunction(fn)){return fn.apply(scope||window,arg||[]);}},isEmpty:function(v,allowBlank){return v===null||v===undefined||((Ext.isArray(v)&&!v.length))||(!allowBlank?v==='':false);},isArray:function(v){return Object.prototype.toString.apply(v)==='[object Array]';},isDate:function(v){return Object.prototype.toString.apply(v)==='[object Date]';},isObject:function(v){return!!v&&Object.prototype.toString.call(v)==='[object Object]';},isPrimitive:function(v){return Ext.isString(v)||Ext.isNumber(v)||Ext.isBoolean(v);},isFunction:function(v){return Object.prototype.toString.apply(v)==='[object Function]';},isNumber:function(v){return typeof v==='number'&&isFinite(v);},isString:function(v){return typeof v==='string';},isBoolean:function(v){return typeof v==='boolean';},isElement:function(v){return!!v&&v.tagName;},isDefined:function(v){return typeof v!=='undefined';},toArray:function(){return JS.isIE?function(a,i,j,res){res=[];for(var x=0,len=a.length;x<len;x++){res.push(a[x]);}
return res.slice(i||0,j||res.length);}:function(a,i,j){return Array.prototype.slice.call(a,i||0,j||a.length);};}()};JS.ns=JS.Syntax.nameSpace;JS.apply=JS.Syntax.apply;JS.override=JS.Syntax.override;JS.extend=JS.Syntax.extend;JS.callBack=JS.Syntax.callBack;JS.isEmpty=JS.Syntax.isEmpty;JS.isArray=JS.Syntax.isArray;JS.isDate=JS.Syntax.isDate;JS.isObject=JS.Syntax.isObject;JS.isPrimitive=JS.Syntax.isPrimitive;JS.isFunction=JS.Syntax.isFunction;JS.isNumber=JS.Syntax.isNumber;JS.isString=JS.Syntax.isString;JS.isBoolean=JS.Syntax.isBoolean;JS.isElement=JS.Syntax.isElement;JS.isDefined=JS.Syntax.isDefined;JS.toArray=JS.Syntax.toArray;JS.DomEvent={on:function(el,name,fun,scope){if(el.addEventListener){el.addEventListener(name,function(){JS.callBack(fun,scope,arguments);},false);}else{el.attachEvent('on'+name,function(){JS.callBack(fun,scope,arguments);});}},un:function(el,name,fun,scope){if(el.removeEventListener){el.removeEventListener(name,fun,false);}else{el.detachEvent('on'+name,fun);}},stop:function(e){e.returnValue=false;if(e.preventDefault){e.preventDefault();}
JS.DomEvent.stopPropagation(e);},stopPropagation:function(e){e.cancelBubble=true;if(e.stopPropagation){e.stopPropagation();}}};JS.on=JS.DomEvent.on;JS.un=JS.DomEvent.un;JS.DelayedTask=function(fn,scope,args){var me=this,id,call=function(){clearInterval(id);id=null;fn.apply(scope,args||[]);};me.delay=function(delay,newFn,newScope,newArgs){me.cancel();fn=newFn||fn;scope=newScope||scope;args=newArgs||args;id=setInterval(call,delay);};me.cancel=function(){if(id){clearInterval(id);id=null;}};};

JS.ns("JS.Observable");JS.Observable=function(o){JS.apply(this,o||JS.toArray(arguments)[0]);if(this.events){this.addEvents(this.events);}
if(this.listeners){this.on(this.listeners);delete this.listeners;}};JS.Observable.prototype={on:function(eventName,fn,scope,o){if(JS.isString(eventName)){this.addListener(eventName,fn,scope,o);}else if(JS.isObject(eventName)){this.addListeners(eventName,scope,o);}},fireEvent:function(){var arg=JS.toArray(arguments),eventName=arg[0].toLowerCase(),e=this.events[eventName];if(e&&!JS.isBoolean(e)){return e.fire.apply(e,arg.slice(1));}},addEvent:function(eventName){if(!JS.isObject(this.events)){this.events={};}
if(this.events[eventName]){return;}
if(JS.isString(eventName)){this.events[eventName.toLowerCase()]=true;}else if(eventName instanceof JS.Event){this.events[eventName.name.toLowerCase()]=eventName;}},addEvents:function(arr){if(JS.isArray(arr)){for(var i=0,len=arr.length;i<len;i++){this.addEvent(arr[i]);}}},addListener:function(eventName,fn,scope,o){eventName=eventName.toLowerCase();var e=this.events[eventName];if(e){if(JS.isBoolean(e)){e=this.events[eventName]=new JS.Event(eventName,this);}
e.addListener(fn,scope,o);}},addListeners:function(obj,scope,o){if(JS.isObject(obj)){for(var p in obj){this.addListener(p,obj[p],scope,o);}}},removeListener:function(eventName,fn,scope){eventName=eventName.toLowerCase();var e=this.events[eventName];if(e&&!JS.isBoolean(e)){e.removeListener(fn,scope);}},clearListeners:function(){var events=this.events,e;for(var p in events){e=events[p];if(!JS.isBoolean(e)){e.clearListeners();}}},clearEvents:function(){var events=this.events;this.clearListeners();for(var p in events){this.removeEvent(p);}},removeEvent:function(eventName){var events=this.events,e;if(events[eventName]){e=events[eventName];if(!JS.isBoolean(e)){e.clearListeners();}
delete events[eventName];}},removeEvents:function(eventName){if(JS.isString(eventName)){this.removeEvent(eventName);}else if(JS.isArray(eventName)&&eventName.length>0){for(var i=0,len=eventName.length;i<len;i++){this.removeEvent(eventName[i]);}}},hasEvent:function(eventName){return this.events[eventName]?true:false;},hasListener:function(eventName,fn,scope){var events=this.events,e=events[eventName];if(!JS.isBoolean(e)){return e.hasListener(fn,scope);}
return false;},suspendEvents:function(){},resumeEvents:function(){}};JS.Event=function(name,caller){this.name=name.toLowerCase();this.caller=caller;this.listeners=[];};JS.Event.prototype={fire:function(){var
listeners=this.listeners,i=listeners.length-1;for(;i>-1;i--){if(listeners[i].execute.apply(listeners[i],arguments)===false){return false;}}
return true;},addListener:function(fn,scope,o){scope=scope||this.caller;if(this.hasListener(fn,scope)==-1){this.listeners.push(new JS.Listener(fn,scope,o));}},removeListener:function(fn,scope){var index=this.hasListener(fn,scope);alert(index);if(index!=-1){this.listeners.splice(index,1);}},hasListener:function(fn,scope){var i=0,listeners=this.listeners,len=listeners.length;for(;i<len;i++){if(listeners[i].equal(fn,scope)){return i;}}
return-1;},clearListeners:function(){var i=0,listeners=this.listeners,len=listeners.length;for(;i<len;i++){listeners[i].clear();}
this.listeners.splice(0);}};JS.Listener=function(fn,scope,o){this.handler=fn;this.scope=scope;this.o=o;};JS.Listener.prototype={execute:function(){return JS.callBack(this.handler,this.scope,arguments);},equal:function(fn,scope){return this.handler===fn?true:false;},clear:function(){delete this.handler;delete this.scope;delete this.o;}};

JS.ns("JS.HTTPStatus","JS.XMLHttpRequest");JS.HTTPStatus={'100':'Continue','101':'Switching Protocols','200':'OK','201':'Created','202':'Accepted','203':'Non-Authoritative Information','204':'No Content','205':'Reset Content','206':'Partial Content','300':'Multiple Choices','301':'Moved Permanently','302':'Found','303':'See Other','304':'Not Modified','305':'Use Proxy','306':'Unused','307':'Temporary Redirect','400':'Bad Request','401':'Unauthorized','402':'Payment Required','403':'Forbidden','404':'Not Found','405':'Method Not Allowed','406':'Not Acceptable','407':'Proxy Authentication Required','408':'Request Timeout','409':'Conflict','410':'Gone','411':'Length Required','412':'Precondition Failed','413':'Request Entity Too Large','414':'Request-URI Too Long','415':'Unsupported Media Type','416':'Requested Range Not Satisfiable','417':'Expectation Failed','500':'Internal Server Error','501':'Not Implemented','502':'Bad Gateway','503':'Service Unavailable','504':'Gateway Timeout','505':'HTTP Version Not Supported'};JS.HTTPStatus.OK=200;JS.HTTPStatus.BADREQUEST=400;JS.HTTPStatus.FORBIDDEN=403;JS.HTTPStatus.NOTFOUND=404;JS.HTTPStatus.TIMEOUT=408;JS.HTTPStatus.SERVERERROR=500;JS.XMLHttpRequest=JS.extend(JS.Observable,{enableCache:false,timeout:0,isAbort:false,specialXHR:'',_xhr:null,readyState:0,status:0,statusText:'',responseText:'',responseXML:null,constructor:function(){var self=this;this.addEvents(['readyStateChange','timeout','abort','error','load','progress']);JS.XMLHttpRequest.superclass.constructor.apply(this,arguments);this._xhr=this.createXmlHttpRequestObject();this._xhr.onreadystatechange=function(){self.doReadyStateChange();};},timeoutTask:null,delayTimeout:function(){if(this.timeout){if(!this.timeoutTask){this.timeoutTask=new JS.DelayedTask(function(){if(this._xhr.readyState!=4){this.fireEvent('timeout',this,this._xhr);}else{this.cancelTimeout();}},this);}
this.timeoutTask.delay(this.timeout);}},cancelTimeout:function(){if(this.timeoutTask){this.timeoutTask.cancel();}},createXmlHttpRequestObject:function(){var activeX=['Msxml2.XMLHTTP.6.0','Msxml2.XMLHTTP.5.0','Msxml2.XMLHTTP.4.0','Msxml2.XMLHTTP.3.0','Msxml2.XMLHTTP','Microsoft.XMLHTTP'],xhr,specialXHR=this.specialXHR;if(specialXHR){if(JS.isString(specialXHR)){return new ActiveXObject(specialXHR);}else{return specialXHR;}}
try{xhr=new XMLHttpRequest();}catch(e){for(var i=0;i<activeX.length;++i){try{xhr=new ActiveXObject(activeX[i]);break;}catch(e){}}}finally{return xhr;}},doReadyStateChange:function(){this.delayTimeout();var xhr=this._xhr;try{this.readyState=xhr.readyState;}catch(e){this.readyState=0;}
try{this.status=xhr.status;}catch(e){this.status=0;}
try{this.statusText=xhr.statusText;}catch(e){this.statusText="";}
try{this.responseText=xhr.responseText;}catch(e){this.responseText="";}
try{this.responseXML=xhr.responseXML;}catch(e){this.responseXML=null;}
this.fireEvent('readyStateChange',this.readyState,this.status,this,xhr);if(this.readyState==3&&(this.status>=200&&this.status<300)){this.fireEvent('progress',this,xhr);}
if(this.readyState==4){this.cancelTimeout();var status=this.status;if(status==0){this.fireEvent('error',this,xhr);}else if(status>=200&&status<300){this.fireEvent('load',this,xhr);}else if(status>=400&&status!=408){this.fireEvent('error',this,xhr);}else if(status==408){this.fireEvent('timeout',this,xhr);}}
this.onreadystatechange();},onreadystatechange:function(){},open:function(method,url,async,username,password){if(!url){return;}
if(!this.enableCache){if(url.indexOf('?')!=-1){url+='&ram='+Math.random();}else{url+='?ram='+Math.random();}}
this._xhr.open(method,url,async,username,password);},send:function(content){this.delayTimeout();this.isAbort=false;this._xhr.send(content);},abort:function(){this.isAbort=true;this.cancelTimeout();this._xhr.abort();if(JS.isIE){var self=this;self._xhr.onreadystatechange=function(){self.doReadyStateChange();};}
this.fireEvent('abort',this,this._xhr);},setRequestHeader:function(header,value){this._xhr.setRequestHeader(header,value);},getResponseHeader:function(header){return this._xhr.getResponseHeader(header);},getAllResponseHeaders:function(){return this._xhr.getAllResponseHeaders();},setTimeout:function(t){this.timeout=t;}});

JS.ns("JS.AJAX");JS.AJAX=(function(){var xhr=new JS.XMLHttpRequest();return{dataFormatError:'服务器返回的数据格式有误',urlError:'未指定url',post:function(url,param,callback,scope,asyn){if(typeof url!=='string'){throw new Error(this.urlError);}
var asynchronous=true;if(asyn===false){asynchronous=false;}
xhr.onreadystatechange=function(){if(xhr.readyState==4&&asynchronous){JS.callBack(callback,scope,[xhr]);}};xhr.open('POST',url,asynchronous);xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=UTF8");xhr.send(param||null);if(!asynchronous){JS.callBack(callback,scope,[xhr]);}},get:function(url,param,callback,scope,asyn){if(typeof url!=='string'){throw new Error(this.urlError);}
var asynchronous=true;if(asyn===false){asynchronous=false;}
xhr.onreadystatechange=function(){if(xhr.readyState==4&&asynchronous){JS.callBack(callback,scope,[xhr]);}};xhr.open('GET',url,asynchronous);xhr.setRequestHeader("Content-Type","html/text;charset=UTF8");xhr.send(param||null);if(!asynchronous){JS.callBack(callback,scope,[xhr]);}},getText:function(url,jsonData,callback,scope,asyn){this.get(url,jsonData,function(xhr){if(scope){callback.call(scope,xhr.responseText);}else{callback(xhr.responseText);}},this,asyn);},getJson:function(url,jsonData,callback,scope,asyn){this.get(url,jsonData,function(xhr){var json=null;try{json=eval("("+xhr.responseText+")");}catch(e){throw new Error(this.dataFormatError);}
JS.callBack(callback,scope,[json]);},this,asyn);}};})();

JS.ns("JS.Connector");JS.Connector=JS.extend(JS.Observable,{version:'0.0.2',SYSCHANNEL:'c4j',LLOOPSTYLE:'lpool',STREAMSTYLE:'stream',CMDTAG:'cmd',url:'',param:'',revivalDelay:100,cId:'',channels:[],workStyle:'',emptyUrlError:'URL为空',runningError:'连接正在运行',dataFormatError:'数据格式有误',running:false,_xhr:null,lastReceiveMessage:'',constructor:function(){JS.Connector.superclass.constructor.apply(this,arguments);this.addEvents(['beforeConnect','connect','beforeStop','stop','message','revival']);if(JS.isIE7){this._xhr=new JS.XMLHttpRequest({specialXHR:'Msxml2.XMLHTTP.6.0'});}else{this._xhr=new JS.XMLHttpRequest();}
this._xhr.addListener('progress',this.doOnProgress,this);this._xhr.addListener('load',this.doOnLoad,this);this._xhr.addListener('error',this.doOnError,this);this._xhr.addListener('timeout',this.revivalConnect,this);this.addListener('beforeStop',this.doDrop,this);JS.on(window,'beforeunload',this.doDrop,this);},doDrop:function(url,cId,conn,xhr){if(!this.running||!this.cId){return;}
try{var xhr=new JS.XMLHttpRequest();var url=this.url+'?'+this.CMDTAG+'=drop&cid='+this.cId;xhr.open('GET',url,false);xhr.send(null);xhr=null;}catch(e){};},dispatchServerEvent:function(msg){this.fireEvent('message',msg.channel,msg.data,msg.time,this);},translateStreamData:function(responseText){var str=responseText;if(this.lastReceiveMessage&&str){str=str.split(this.lastReceiveMessage);str=str.length?str[str.length-1]:"";}
this.lastReceiveMessage=responseText;return str;},decodeMessage:function(msg){var json=null;if(JS.isString(msg)&&msg!=""){if(msg.charAt(0)=="<"){msg=msg.substring(1,msg.length);}
if(msg.charAt(msg.length-1)==">"){msg=msg.substring(0,msg.length-1);}
msg=decodeURIComponent(msg);try{json=eval("("+msg+")");}catch(e){this.stop('JSON转换异常');try{console.log("JSON转换异常:"+msg);}catch(e){};}}
return json;},doOnProgress:function(xhr){if(this.workStyle===this.STREAMSTYLE){var str=this.translateStreamData(xhr.responseText);var msglist=str.split(">");if(msglist.length>0){for(var i=0,len=msglist.length;i<len;i++){var json=this.decodeMessage(msglist[i]);if(json){this.dispatchServerEvent(json);}}}}},doOnError:function(xhr){this.stop('服务器异常');},doOnLoad:function(xhr){if(this.workStyle===this.LLOOPSTYLE){var json=this.decodeMessage(xhr.responseText);if(json){this.dispatchServerEvent(json);}}
this.revivalConnect();},startConnect:function(){if(this.running){var url=this.url+'?'+this.CMDTAG+'=conn&cv='+this.version+this.param;JS.AJAX.get(url,'',function(xhr){var msg=this.decodeMessage(xhr.responseText);if(!msg){this.stop('连接失败');return;}
var data=msg.data;this.cId=data.cId;this.channels=data.channels;this.workStyle=data.ws;this._xhr.setTimeout(data.timeout*2);this.fireEvent('connect',data.cId,data.channels,data.ws,data.timeout,this);this.revivalConnect();},this);}},revivalConnect:function(){var self=this;if(this.running){setTimeout(revival,this.revivalDelay);}
function revival(){var xhr=self._xhr;var url=self.url+'?'+self.CMDTAG+'=revival&cid='+self.cId+self.param;xhr.open('GET',url,true);xhr.send(null);self.fireEvent('revival',self.url,self.cId,self);}},start:function(url,param){var self=this;setTimeout(function(){if(!self.url&&!url){throw new Error(self.emptyUrlError);}
if(self.running){return;}
if(url){self.url=url;}
if(param&&JS.isString(param)){if(param.charAt(0)!='&'){param='&'+param;}
self.param=param;}
if(self.fireEvent('beforeConnect',self.url,self)===false){return;}
self.running=true;self.startConnect();},1000);},stop:function(cause){if(!this.running){return;}
if(this.fireEvent('beforeStop',cause,this.cId,this.url,this)===false){return;}
this.running=false;var cId=this.cId;this.cId='';this.param='';this.adml=[];this.workStyle='';try{this._xhr.abort();}catch(e){};this.fireEvent('stop',cause,cId,this.url,this);},getId:function(){return this.cId;}});

JS.ns("JS.Engine");JS.Engine=(function(){var Engine=JS.extend(JS.Observable,{lStore:[],running:false,connector:null,constructor:function(){this.addEvents(['start','stop']);Engine.superclass.constructor.apply(this,arguments);this.connector=new JS.Connector();this.initEvent();},addListener:function(eventName,fn,scope,o){if(this.running){Engine.superclass.addListener.apply(this,arguments);}else{this.lStore.push({eventName:eventName,fn:fn,scope:scope,o:o});}},initEvent:function(){var self=this;this.connector.on({connect:function(cId,aml,conn){self.running=true;self.addEvents(aml);for(var i=0,len=self.lStore.length;i<len;i++){var e=self.lStore[i];self.addListener(e.eventName,e.fn,e.scope);}
self.fireEvent('start',cId,aml,self);},stop:function(cause,cId,url,conn){self.running=false;self.fireEvent('stop',cause,cId,url,self);self.clearListeners();},message:function(amk,data,time){self.fireEvent(amk,data,time,self);}});},start:function(url){if(this.running){return;}
this.connector.start(url);},stop:function(cause){if(!this.running){return;}
this.connector.stop(cause);},getConnector:function(){return this.connector;},getId:function(){return this.connector.cId;}});return new Engine();}());