梅子开源js框架研究（1）

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框架 IE C C++C#

/*---------------------------------------------------------------------------*

|Subject:JavaScriptFramework

|Author:meizz

|Created:2005-02-27

|Version:2007-06-06

|-----------------------------------

|MSN:huangfr@msn.comQQ:112889082Copyright(c)meizz

|http://www.meizz.com/jsframework/MIT-stylelicense

|Theabovecopyrightnoticeandthispermissionnoticeshallbe

|includedinallcopiesorsubstantialportionsoftheSoftware

*---------------------------------------------------------------------------*/

if(typeof(System)!="function"&&typeof(Using)!="function")

{

varS=window.System=function()

{

this.setHashCode();

}

S.debug=false;//false

S.currentVersion="20070606";

S._codebase={};

try

{

if(window!=parent&&parent.System&&parent.System._codebase)

S._codebase=parent.System._codebase;

elseif(typeof(opener)!="undefined"&&opener.System&&opener.System._codebase)

S._codebase=opener.System._codebase;

elseif(typeof(dialogArguments)!="undefined"&&dialogArguments.System)

S._codebase=dialogArguments.System._codebase;

}

catch(ex)

{}

vart=document.getElementsByTagName("SCRIPT");

t=(S.scriptElement=t[t.length-1]).src.replace(/\/g,"/");

S.extend=function(d,s)

{

for(variins)

d[i]=s[i];

returnd;

};

S.path=(t.lastIndexOf("/")<0)?".":t.substring(0,t.lastIndexOf("/"));

S.resourcePath=S.path+"/System/_resource";

S.hashCounter=0;

S.NOT_SUPPORTED_XMLHTTP="YourbrowserdonotsupportXMLHttp";

S.getUniqueId=function()

{

return"mz_"+(System.hashCounter++).toString(36);

};

S.toHashCode=function(e)

{

if(typeof(e.hashCode)!="undefined")

{

returne.hashCode;

}

return(e.hashCode=System.getUniqueId());

};

S.supportsXmlHttp=function()

{

return"object"==typeof(System.xhr||(System.xhr=newXMLHttpRequest()));

};

S._getPrototype=function(ns,argu)

{

if(typeof(System._prototypes[ns])=="undefined")

returnnewSystem();

for(vara=[],i=0;i<argu.length;i++)

a[i]="argu["+i+"]";

returneval("new(System._prototypes['"+ns+"'])("+a.join(",")+")");

};

S.ie=navigator.userAgent.indexOf("MSIE")>0&&!window.opera;

S.alert=function(msg)

{

if(System.debug)

alert(msg);

};

S._userdata=(System.ie&&!System.debug);S._parseResponse=function(ns,s)

{

if(s==null||s.charAt(0)=="�")

{

System.alert("Maybefileencodingisn'tANSIorUTF-8");return""

}

if(s.charAt(0)=="ï")s=s.substr(3);//forfirefox

s=s.replace(/(^| )s*//+s*((Using|Import|Include)(("|'))/g,"$1$2");

if(System._userdata)

System.saveUserData(ns,s);

returns;

};

if(!window.XMLHttpRequest&&window.ActiveXObject)

{

window.XMLHttpRequest=function()

{

for(vari=0,a=['MSXML3','MSXML2','Microsoft'];i<a.length;i++)

{

try

{

returnnewActiveXObject(a[i]+'.XMLHTTP')

}

catch(ex){}

}

System.xhr="mz";

thrownewError(System.NOT_SUPPORTED_XMLHTTP);

}

S.load=function(namespace,path)

{

varx,ns=namespace,S=System;

path=S._mapPath(ns,path);

if(S._userdata&&/.js$/i.test(path)&&(x=S.loadUserData(ns)))

return(S._codebase[ns]="//fromuserdata "+x);

try

{

if(S.supportsXmlHttp())

{

x=S.xhr;

x.open("GET",path,false);

x.send(null);

if(x.readyState==4)

{

if(x.status==0||/^file:/i.test(path))

returnS._parseResponse(ns,x.responseText);

elseif(x.status==200)

returnS._parseResponse(ns,x.responseText);

elseif(x.status==404)

S.alert(ns+" Filenotfound");

else

thrownewError(x.status+":"+x.statusText);

}

elseS.alert(S.NOT_SUPPORTED_XMLHTTP);

}

catch(ex)

{

S.alert(ns+" "+ex.message);

}

return"";

};

S._exist=function(ns,path)

{

if(typeof(System._existences[ns])=="undefined")

returnfalse;

returnSystem._existences[ns]==System._mapPath(ns,path);

};

S._mapPath=function(ns,path)

{

if(typeof(path)=="string"&&path.length>3)

returnpath;

varp=System.path+"/"+ns.replace(/./g,"/")+".js";

returnp+((typeof(path)=="undefined"||path)?"":"?t="+Math.random());

};

window.Using=function(namespace,path,rename)

{

varN=namespace,C=N.substr(N.lastIndexOf(".")+1),S=System,i=S._prototypes;

if(S._exist(N,path))

{

if(window[C]!=i[N])

window[C]=i[N];

return

}

if(!/((^|.)[w_$]+)+$/.test(N))

thrownewError(N+"nonstandardnamespace")

for(vars,e,c=N+".",i=c.indexOf(".");i>-1;i=c.indexOf(".",i+1))

{

e=c.substring(0,i);

s=(e.indexOf(".")==-1)?"window['"+e+"']":e;

if(e&&typeof(eval(s))==color: rgb(0,0,0);

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