ig_shared.js

研究怎样通过手写代码来完成自动生成代码

/* 
Infragistics Common Script 
Version 5.1.20051.37
Copyright (c) 2001-2005 Infragistics, Inc. All Rights Reserved.

The JavaScript functions in this file are intended for the internal use of the Intragistics Web Controls only.

*/
function ig_WebControl(id)
{
	if(arguments.length > 0){
		this.init(id);
	}
}
ig_WebControl.prototype.init=function(id){
	this._id=id;
	ig_all[id]=this;
}

ig_WebControl.prototype.constructor=ig_WebControl;
ig_WebControl.prototype.getElement=function(){return this._element;}
ig_WebControl.prototype.getID=function(){return this._id;}
ig_WebControl.prototype.getUniqueID=function(){return this._uniqueID;}
ig_WebControl.prototype.getClientID=function(){return this._clientID;}

// ig_csom class implements the basic browser independent functionality
function ig_initShared()
{
	// Public Properties
	this.ScriptVersion="5.1.20051.1"; 
	
	// navigator.userAgent is not being validated because ig_csom should not be used for unknown browsers.
	this.AgentName			=navigator.userAgent.toLowerCase();
	this.MajorVersionNumber =parseInt(navigator.appVersion);
	this.IsDom				=(document.getElementById)?true:false;
	this.IsNetscape=this.AgentName.indexOf("netscape6")>=0;
	this.IsNetscape6		=(this.IsDom&&navigator.appName=="Netscape");
	this.IsNetscape62=this.AgentName.indexOf("netscape6")>=0;
	var i=this.AgentName.indexOf("netscape/7.");
	this.Netscape7=(i>0)?this.AgentName.charCodeAt(i+11)-48:-1;
	this.IsOpera			=this.AgentName.indexOf('opera')!=-1;
	this.IsMac				=(this.AgentName.indexOf("mac")!=-1);
	this.IsIE				=(document.all?true:false);
	this.IsIE4				=(document.all&&!this.IsDom)?true:false;
	this.IsIE4Plus			=(this.IsIE && this.MajorVersionNumber >= 4)?true:false;
	this.IsIE5				=(document.all&&this.IsDom)?true:false;
	this.IsIE50				=this.IsIE5&&(this.AgentName.indexOf("msie 5.0")!=-1);
	this.IsWin				=((this.AgentName.indexOf("win")!=-1) || (this.AgentName.indexOf("16bit")!=-1));
	this.IsIE55				=((navigator.userAgent.indexOf("MSIE 5.5") != -1) && (navigator.userAgent.indexOf("Windows") != -1)); 
	this.IsIEWin			=(this.IsIE && this.IsWin); 
	this.IsIE6				=((navigator.userAgent.indexOf("MSIE 6.0") != -1) && (navigator.userAgent.indexOf("Windows") != -1)); 
	this.IsIE55Plus			=(this.IsIE55 || this.IsIE6); 
	this.IsSafari			=this.AgentName.indexOf('safari')!=-1;
	// Obtains an element object based on its Id
	this.getElementById = function (tagName)
	{
		if(this.IsIE)
			return document.all[tagName];
		else
			return document.getElementById(tagName);
	}

	this.isArray = function(a) {
		return a!=null && a.length!=null;
	}
	
	this.isEmpty = function(o) {
		return !(this.isArray(o) && o.length>0);
	}
	
	this.notEmpty = function(o) {
		return (this.isArray(o) && o.length>0);
	}

	// Adds an event listener to an html element.
	this.addEventListener=function(elem,evtName,fn,flag)
	{ 
		try{if(elem.attachEvent){elem.attachEvent("on"+evtName,fn); return;}}catch(ex){}
		try{if(elem.addEventListener){elem.addEventListener(evtName,fn,flag); return;}}catch(ex){}
		eval("var old=elem.on"+evtName);
		var sF=fn.toString();
		var i=sF.indexOf("(")+1;
		try
		{
		if((typeof old =="function") && i>10)
		{
			old=old.toString();
			/* params of old function */
			var args=old.substring(old.indexOf("(")+1,old.indexOf(")"));
			while(args.indexOf(" ")>0) args=args.replace(" ","");
			if(args.length>0) args=args.split(",");
			/* body of old function */
			old=old.substring(old.indexOf("{")+1,old.lastIndexOf("}"));
			/* name of new function with ( */
			sF=sF.substring(9,i);
			if(old.indexOf(sF)>=0)return;
			var s="fn=new Function(";
			for(i=0;i<args.length;i++)
			{
				if(i>0)sF+=",";
				s+="\""+args[i]+"\",";
				sF+=args[i];
			}
			sF+=");"+old;
			eval(s+"sF)");
		}
		eval("elem.on"+evtName+"=fn");
		}catch(ex){}
	}
	
	// Obtains the proper source element in relation to an event
	this.getSourceElement = function (evnt, o)
	{
		if(evnt.target) // This does not appear to be working for Netscape
			return evnt.target;
		else 
		if(evnt.srcElement)
			return evnt.srcElement;
		else
			return o;
	}
	
	this.getText = function (e){
		if(e==null)return "";
		var i,v=null,ii=(e.childNodes==null)?0:e.childNodes.length;
		for(i=-1;i<ii;i++)
		{
			var ei=(i<0)?e:e.childNodes[i];
			if(ei.nodeName=="#text")v=(v==null)?ei.nodeValue:v+" "+ei.nodeValue;
		}
		if(v!=null)return v;
		if((v=e.text)!=null)return v;
		try{return e.innerText;}catch(ex){}
		try{return e.innerHTML;}catch(ex){}
		return "";
	}
	
	this.setText = function (e, text)
	{
		if(e==null)return false;
		if(text==null)text="";
		var i,ii=(e.childNodes==null)?0:e.childNodes.length;
		for(i=-1;i<ii;i++)
		{
			var ei=(i<0)?e:e.childNodes[i];
			if(ei.nodeName=="#text")
			{
				if(text!=null){ei.nodeValue=text; text=null;}
				else ei.nodeValue="";
			}
		}
		if(text!=null)try
		{
			if(e.text!=null)e.text=text;
			else if(e.innerText!=null)e.innerText=text;
			else e.innerHTML=text;
			text=null;
		}catch(ex){}
		return text==null;
	}
	this.setEnabled = function (e, bEnabled)
	{
		if(this.IsIE)
			e.disabled = !bEnabled;
	}
	this.getEnabled = function (e){
		if(this.IsIE)
			return !e.disabled;
	}

	this.navigateUrl =	function (targetUrl, targetFrame)
	{
		if(targetUrl == null || targetUrl.length == 0)
			return;
		var newUrl=targetUrl.toLowerCase();
		if(newUrl.indexOf("javascript") != -1)
			eval(targetUrl);
		else 
		if(targetFrame != null && targetFrame!="")	{
			if(ig.getElementById(targetFrame) != null) 
				ig.getElementById(targetFrame).src = targetUrl;
			else {
				var oFrame = ig_searchFrames(top, targetFrame);
				if(oFrame != null)
					oFrame.location=targetUrl;
				else 
				if(targetFrame == "_self" 
					|| targetFrame == "_parent"
					|| targetFrame == "_media"
					|| targetFrame == "_top"
					|| targetFrame == "_blank"
					|| targetFrame == "_search")
					window.open(targetUrl, targetFrame);
				else
					window.open(targetUrl);
			}
		}
		else {
			try {
				location.href = targetUrl;
			}
			catch (x) {
			}
		}
	}
	
	function ig_searchFrames(frame, targetFrame) {
		if(frame.frames[targetFrame] != null)
			return frame.frames[targetFrame];
		var i;
		for(i=0; i<frame.frames.length; i++) {
			var subFrame = ig_searchFrames(frame.frames[i], targetFrame);
			if(subFrame != null)
				return subFrame; 
		}
		return null;
	}
	
	this.findControl=function(startElement,idList,closestMatch){
		var item;
		var searchString="";
		var i=0;
		var partialId=idList.split(":");
		while(partialId[i+1]!=null&&partialId[i+1].length>0){
			searchString+=partialId[i]+".*";
			i++;
		}
		searchString+=partialId[i]+"$";
		var searchExp=new RegExp(searchString);
		var curElement;
		if(startElement != null)
			curElement=startElement.firstChild;
		else
			curElement = window.document.firstChild;
		while(curElement!=null){
			if(curElement.id!=null&&(curElement.id.search(searchExp))!=-1){
				//ig_delete(searchExp);
				ig_dispose(searchExp);
				return curElement;
			}
			item=this.findControl(curElement,idList);
			if(item!=null){
				//ig_delete(searchExp);
				ig_dispose(searchExp);
				return item;
			}
			curElement=curElement.nextSibling;		
		}
		//ig_delete(searchExp);
		ig_dispose(searchExp);
		if(closestMatch)
			return findClosestMatch(startElement,partialId);
		else return null;
	}
	this.createTransparentPanel=function (){
		if(!this.IsIE)return null;
		var transLayer=document.createElement("IFRAME");
		transLayer.style.zIndex=1000;
		transLayer.frameBorder="no";
		transLayer.scrolling="no";
		transLayer.style.filter="progid:DXImageTransform.Microsoft.Alpha(Opacity=0);";
		transLayer.style.visibility='hidden';
		transLayer.style.display='none';
		transLayer.style.position="absolute";
		transLayer.src='javascript:new String("<html></html>")';
		var e = document.body.firstChild;
		document.body.insertBefore(transLayer, e);
		return new ig_TransparentPanel(transLayer);
	}
	/* Check if mouseout event should be ignored */
	/* evt: browser event */
	/* container: outer element to test for */
	/* elem(optional): element that define bounds */
	/* shift(optional): extra shift of bottom edge of elem (use 50 for inline table in Netscape). -1: disables "toElement" logic. */
	this.isInside=function(evt,container,elem,shift)
	{
		var to=evt.toElement;
		if(to==null)to=evt.relatedTarget;
		if(to!=null && shift!=-1)
		{
			while(to!=null)
			{
				if(to==container)return true;
				to=to.parentNode;
			}
			return false;
		}
		if(elem==null)elem=container; if(shift==null)shift=0;
		var z,x=-evt.clientX,y=-evt.clientY;
		var w=elem.offsetWidth,h=elem.offsetHeight;
		while(elem!=null)
		{
			if((z=elem.offsetLeft)!=null){x+=z; y+=elem.offsetTop;}
			elem=elem.offsetParent;
		}
		return x<-1 && y<-1 && 1<x+w && 2+shift<y+h;
	}
	this.createHoverBehavior= function(objectToCallBackWith,element,mouseOverHandler,mouseOutHandler){
		element.__callBackObject=objectToCallBackWith;
		element.__isEventReady=true;
		objectToCallBackWith.__onFilteredMouseOver=mouseOverHandler;
		objectToCallBackWith.__onFilteredMouseOut=mouseOutHandler;
		this.addEventListener(element,"mouseover",ig_filterMouseOverEvents,false);
		this.addEventListener(element,"mouseout",ig_filterMouseOutEvents,false);
	}
	this.onUnload=function(){
		ig_dispose(ig_all);
	}
	this.addEventListener(window,"unload",this.onUnload,false);
}
function ig_delete(o){ig_dispose(o);}

function ig_filterMouseOverEvents(evt){
	var element=ig.getSourceElement(evt);
	if(!element.__isEventReady){
		while(element!=null && !element.__isEventReady && element.tagName!="BODY")element=element.parentNode;
	}
	if(element.__isEventReady && (element._hasMouse||!ig_isMouseOverSourceAChild(evt,element))) 
	{
		element._hasMouse=true;
		element.__callBackObject.__onFilteredMouseOver(evt);
	}	
}
function ig_filterMouseOutEvents(evt){
	var element=ig.getSourceElement(evt);
	if(!element.__isEventReady){
		while(element!=null && !element.__isEventReady && element.tagName!="BODY")element=element.parentNode;
	}
	if(element&&element.__isEventReady&&!ig_isMouseOutSourceAChild(evt,element)) 
	{
		element._hasMouse=false;
		element.__callBackObject.__onFilteredMouseOut(evt);
	}	
}

function ig_isMouseOverSourceAChild(evt,element){
	var evnt=evt?evt:window.event;