/**
 * AutoSourcing
 * @author gony (AjaxUI3 Team)
 * @version r2102
 * 작성자 : NHN
 */

var AutoSourcing={
	div:null,
	id:"",
	timer:null,
	regex:null,
	strings:[],
	skip:false,
	
	init:function(format,enable){
		var is_safari=(navigator.userAgent.indexOf("WebKit")>-1&&navigator.vendor.indexOf("Apple")>-1);
		this.div=document.createElement("div");
		this.div.className=(/MSIE|Gecko/.test(navigator.userAgent)&&!is_safari)?"autosourcing-stub":"autosourcing-stub-extra";
		this.id="autosourcing_tmp_"+Math.floor((Math.random()*100000));
		this.regex=new RegExp(format.replace("%id%","(\\d+)"));
		if(typeof enable=="undefined")enable=true;
		this.setEnable(enable);
	},
	setEnable:function(bool){
		var t=this;
		if(bool){
			if(typeof document.body.oncopy!="undefined"){
				document.body.oncopy=function(evt){t.copy(evt);};
			}else{
				document.onkeydown=function(evt){t.keydown(evt);};
				document.onkeypress=function(evt){t.keypress(evt);};
				document.oncontextmenu=function(evt){t.copy();};
			}
		}else{
			var f=new Function;
			if(typeof document.body.oncopy!="undefined"){document.body.oncopy=f;}
			else{document.onkeydown=f;document.onkeypress=f;document.oncontextmenu=f;}
		}
	},
	getId:function(rng){
		var range_s,range_e,par,id;
		range_s=this.cloneRange(rng);
		range_s.collapse(true);
		par=this.getParentElement(range_s);
		while(par&&par.parentNode)
		{
			if(par.nodeType==1&&this.regex.test(par.id))
			{
				id=parseInt(RegExp.$1);
						
				return isNaN(id)?0:id;
			}
			par=par.parentNode;
		}
		range_e=this.cloneRange(rng)
		range_e.collapse(false);
		par=this.getParentElement(range_e);
		while(par&&par.parentNode)
		{
			if(par.nodeType==1&&this.regex.test(par.id))
			{
				id=parseInt(RegExp.$1);
				return isNaN(id)?0:id;
			}
			par=par.parentNode;
		}
		return-1;
	},
	getSelection:function(){
		if(window.getSelection){
			return window.getSelection();
		}else{
			return document.selection;
		}
	},
	getRange:function(selection){
		selection=selection||this.getSelection();
		if(selection.getRangeAt){
			return selection.getRangeAt(0);
		}else{
			return selection.createRange();
		}
	},
	cloneRange:function(rng){
		rng=rng||this.getRange();
		if(rng.duplicate){
			return rng.duplicate();
		}else{
			return rng.cloneRange();
		}
	},
	getParentElement:function(range){
		var par=range.parentElement?range.parentElement():range.commonAncestorContainer;
		if(!par)return null;
		while(par.nodeType!=1){par=par.parentNode;}
		return par;
	},
	setString:function(id,str){
		this.strings[id]=str;
	},
	copy:function(evt){
		var evt=evt||window.event;
		var self=this;
		var sel=this.getSelection();
		var rng=this.getRange(sel);
		var rngtmp=this.cloneRange(rng);
		var regcopy=/<(?:p|div)[^<>]+class\s*=\s*"?autosourcing\-stub(?:\-extra)?\-saved(?:\b|")/i;
		var regtag=/textarea|input/i;
		var id=this.getId(rng);
		var par=null;
		var node_rng;
		this.skip=false;
		clearTimeout(this.timer);
		if(id==-1){
			try{
				this.div.parentNode.removeChild(this.div)
			}catch(e){};
			return;
		}
		if(evt&&evt.srcElement&&evt.srcElement.tagName.toUpperCase()=="A")return;
		this.div.innerHTML=this.strings[this.getId(rng)];
		if(window.getSelection){
			var html=(window.XMLSerializer)?new XMLSerializer().serializeToString(rng.cloneContents()):"";
			if(regcopy.test(html)||regtag.test(rng.commonAncestorContainer.tagName)){
				if(this.div&&this.div.parentNode)this.div.parentNode.removeChild(this.div);
				this.skip=true;return;
			}
			rngtmp.collapse(false);
			rngtmp.insertNode(this.div);
			if(this.div.nextSibling){
				rng.setEndBefore(this.div.nextSibling);
			}else{
				rng.setEndAfter(this.div);
			}
			sel.removeAllRanges();
			sel.addRange(rng);
		}else if(document.selection){
			var body=document.body||document.getElementsByTagName("body")[0];
			var div=document.createElement("div");
			var span=document.createElement("span");
			span.id=this.id;
			if(regcopy.test(rng.htmlText)||regtag.test(rng.parentElement().tagName)){
				this.skip=true;return;
			}
			rngtmp.collapse(false);
			rngtmp.pasteHTML(span.outerHTML+"&nbsp;<span></span>");
			span=document.getElementById(this.id);
			(span||rngtmp.parentElement()).insertAdjacentElement("afterEnd",this.div);
			do{
				rng.moveEnd("character",1);
				(rngtmp=rng.duplicate()).collapse(false);
			}while(rngtmp.offsetLeft==0);
			try{
				rng.select();
			}catch(e){}
			if(span&&span.parentNode){
				span.parentNode.removeChild(span.nextSibling.nextSibling);
				span.parentNode.removeChild(span.nextSibling.nextSibling);
				span.parentNode.removeChild(span);
			}
			if(div&&div.parentNode){
				div.parentNode.removeChild(div);
			}
		}
		if(typeof document.body.oncopy!="undefined"){
			this.timer=setTimeout(function(){self.aftercopy(rng);},1);
		}
	},
	aftercopy:function(rng){
		if(this.skip)return;
		try{
			this.div.parentNode.removeChild(this.div);
			if(/WebKit/.test(navigator.userAgent)){
				var sel=this.getSelection();
				sel.removeAllRanges();
				sel.addRange(rng);
			}
		}catch(e){}
	},
	keydown:function(e){
		if((e.ctrlKey||e.metaKey)&&e.keyCode==67){
			this.copy();}
	},
	keypress:function(e){
		if((e.ctrlKey||e.metaKey)&&e.keyCode==67){
			var t=this;
			this.timer=setTimeout(function(){t.aftercopy();},10);
		}
	},
	mousedown:function(e){}
}