ig_webgrid.js

研究怎样通过手写代码来完成自动生成代码

function igtbl_getGroupByRowClass(gn,bandNo)
{
	return g.Bands[bandNo].getGroupByRowClass();
}

function igtbl_getHeadClass(gn,bandNo,columnNo)
{
	var g=igtbl_getGridById(gn);
	return g.Bands[bandNo].Columns[columnNo].getHeadClass();
}

function igtbl_getRowLabelClass(gn,bandNo)
{
	var g=igtbl_getGridById(gn);
	return g.Bands[bandNo].getRowLabelClass();
}

function igtbl_getSelGroupByRowClass(gn,bandNo)
{
	var g=igtbl_getGridById(gn);
	return g.Bands[bandNo].getSelGroupByRowClass();
}

function igtbl_getSelHeadClass(gn,bandNo,columnNo)
{
	var g=igtbl_getGridById(gn);
	if(g.Bands[bandNo].Columns[columnNo].SelHeadClass!="")
		return g.Bands[bandNo].Columns[columnNo].SelHeadClass;
	if(g.Bands[bandNo].SelHeadClass!="")
		return g.Bands[bandNo].SelHeadClass;
	return g.SelHeadClass;
}

function igtbl_getSelCellClass(gn,bandNo,columnNo)
{
	var g=igtbl_getGridById(gn);
	return g.Bands[bandNo].Columns[columnNo].getSelClass();
}

function igtbl_getExpAreaClass(gn,bandNo)
{
	var g=igtbl_getGridById(gn);
	return g.Bands[bandNo].getExpAreaClass();
}

function igtbl_getCurrentRowImage(gn,bandNo)
{
	var g=igtbl_getGridById(gn);
	var res=g.CurrentRowImage;
	var band=g.Bands[bandNo];
	if(band.CurrentRowImage!="")
		res=band.CurrentRowImage;
	var au=igtbl_getAllowUpdate(gn,band.Index);
	if(band.RowTemplate!="" && (au==1 || au==3))
	{
		res=g.CurrentEditRowImage;
		if(band.CurrentEditRowImage!="")
			res=band.CurrentEditRowImage;
	}
	return res;
}

function igtbl_toggleRow() 
{
	var srcRow,expand;
	if(arguments.length==1)
	{
		var evnt=arguments[0];
		var se=igtbl_srcElement(evnt);
		if(!se || se.tagName!="IMG")
			return;
		srcRow=se.parentNode.parentNode.id;
	}
	else
	{
		srcRow=arguments[1];
		expand=arguments[2];
	}
	var sr = igtbl_getRowById(srcRow);
	if(!sr) return;
	igtbl_lastActiveGrid=sr.gridId;
	if(!sr.getExpanded() && expand!=false) 
		sr.setExpanded(true);
	else if(expand!=true)
		sr.setExpanded(false);
}

function igtbl_selectStart(evnt) 
{
	var se=igtbl_srcElement(evnt);
	if(se.tagName=="TD" || se.tagName=="NOBR" || se.tagName=="TH" || se.tagName=="A")
	{
		evnt.cancelBubble = true;
		evnt.returnValue = false;
	}
}

function igtbl_getBandFAC(gn,elem)
{
	var gs=igtbl_getGridById(gn);
	var bandNo=null;
	if(elem.tagName=="TD" || elem.tagName=="TH")
		bandNo=elem.parentNode.parentNode.parentNode.getAttribute("bandNo");
	else if(elem.tagName=="TR")
		bandNo=elem.parentNode.parentNode.getAttribute("bandNo");
	else if(elem.tagName=="TABLE")
		bandNo=elem.getAttribute("bandNo");
	if(bandNo)
		return gs.Bands[bandNo].firstActiveCell;
	return null;
}

function igtbl_headerClickDown(evnt,gn) 
{
	if(!evnt && event)
		evnt=event;
	if(!gn && igtbl_lastActiveGrid)
		gn=igtbl_lastActiveGrid;
	if(!gn || !evnt)
		return false;
	var gs=igtbl_getGridById(gn);
	if(!gs)
		return;
	igtbl_lastActiveGrid=gn;
	var te=gs.Element;
	te.setAttribute("mouseDown","1");
	var se=igtbl_srcElement(evnt);
	if(se && se.tagName=="IMG" && se.getAttribute("imgType")=="group")
		return;
	while(se && (se.tagName!="TH" || se.id.length<gn.length || se.id.substr(0,gn.length)!=gn) && (se.tagName!="DIV" || !se.getAttribute("groupInfo")))
		se=se.parentNode;
	if(!se)
		return;
	if(se.tagName == "TH")
	{
		var colObj=igtbl_getColumnById(se.id);
		if(!colObj) return;
		if(igtbl_fireEvent(gn,gs.Events.MouseDown,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")")==true)
			return true;
		if(igtbl_button(gn,evnt)!=0)
			return;
		var bandNo=colObj.Band.Index;
		var band=colObj.Band;
		if(se.cellIndex>=band.firstActiveCell && igtbl_getOffsetX(evnt,se)>igtbl_clientWidth(se)-4 && igtbl_getAllowColSizing(gn,bandNo,colObj.Index)==2)
		{
			te.setAttribute("elementMode", "resize");
			te.setAttribute("resizeColumn", se.id);
			igtbl_lineupHeaders(se.id,band);
			var div,divr;
			if(!document.body.igtbl_resizeDiv)
			{
				div=document.createElement("DIV");
				document.body.appendChild(div);
				div.style.zIndex=10000;
				div.style.position="absolute";
				div.style.left=0;
				div.style.top=0;
				if(div.addEventListener)
				{
					div.addEventListener("mouseup",igtbl_resizeDivMouseUp,false);
					div.addEventListener("mousemove",igtbl_resizeDivMouseMove,false);
					div.addEventListener("selectstart",igtbl_resizeDivSelectStart,false);
				}
				else
				{
					div.onmouseup=igtbl_resizeDivMouseUp;
					div.onmousemove=igtbl_resizeDivMouseMove;
					div.onselectstart=igtbl_resizeDivSelectStart;
				}
				document.body.igtbl_resizeDiv=div;
				divr=document.createElement("DIV");
				div.appendChild(divr);
				divr.style.position="absolute";
				divr.style.borderWidth=1;
				divr.style.borderColor="black";
				divr.style.borderStyle="solid";
				divr.style.width=2;
			}
			else
			{
				div=document.body.igtbl_resizeDiv;
				divr=div.firstChild;
			}
			div.style.display="";
			div.style.cursor="w-resize";
			div.style.width=document.body.clientWidth;
			div.style.height=document.body.clientHeight;
			div.style.backgroundColor="transparent";
			divr.style.top=igtbl_getTopPos(te.parentNode);
			divr.style.left=evnt.clientX;
			divr.style.height=te.parentNode.offsetHeight;
			div.column=colObj;
			div.initX=evnt.clientX;
			return true;
		}
		se.setAttribute("justClicked",true);
		if(se.cellIndex>band.firstActiveCell-1)
		{
			if(igtbl_getHeaderClickAction(gn,bandNo,colObj.Index)==1 && (gs.SelectedColumns[se.id]!=true || gs.ViewType!=2 || igtbl_getSelectTypeColumn(gn,bandNo)==3))
			{
				if(igtbl_getSelectTypeColumn(gn,bandNo)<2)
					return true;
				te.setAttribute("elementMode", "select");
				te.setAttribute("selectMethod", "column");
				if(!(igtbl_getSelectTypeColumn(gn,bandNo)==3 && evnt.ctrlKey))
					igtbl_clearSelectionAll(gn);
				if(te.getAttribute("shiftSelect") && evnt.shiftKey)
				{
					te.setAttribute("lastSelectedColumn","");
					igtbl_selectColumnRegion(gn,se);
					te.removeAttribute("shiftSelect");
				}
				else
				{
					te.setAttribute("startColumn", se.id);
					if(gs.SelectedColumns[se.id] && evnt.ctrlKey)
						igtbl_selectColumn(gn,se.id,false);
					else
						igtbl_selectColumn(gn,se.id);
					te.removeAttribute("shiftSelect", true);
					if(!evnt.ctrlKey)
						te.setAttribute("shiftSelect",true);
				}
			}
		}
		return true;
	}
	else if(se.tagName=="DIV" && se.getAttribute("groupInfo"))
	{
		if(igtbl_button(gn,evnt)!=0)
			return;
		if(igtbl_fireEvent(gn,gs.Events.MouseDown,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")")==true)
			return;
		var groupInfo=se.getAttribute("groupInfo").split(":");
		if(groupInfo[0]!="band")
			igtbl_changeStyle(gn,se,igtbl_getSelHeadClass(gn,groupInfo[1],groupInfo[2]));
		se.setAttribute("justClicked",true);
		return true;
	}
}

function igtbl_resizeDivMouseUp(evnt)
{
	if(!evnt) evnt=event;
	if(!evnt) return;
	var se=document.body.igtbl_resizeDiv;
	se.style.display="none";
	if(se.initX!=evnt.clientX)
	{
		var col=se.column;
		var oldWidth=parseInt(col.Width,10);
		var newWidth=oldWidth+evnt.clientX-se.initX;
		if(newWidth<=0)
			newWidth=1;
		if(oldWidth!=newWidth)
			col.setWidth(newWidth);
	}
}

function igtbl_resizeDivMouseMove(evnt)
{
	if(!evnt) evnt=event;
	if(!evnt) return;
	var se=document.body.igtbl_resizeDiv;
	se.style.cursor="w-resize";
	if(!se.firstChild)
		se=se.parentNode;
	if(se.initX!=evnt.clientX)
	{
		var col=se.column;
		if(parseInt(col.Width,10)+evnt.clientX-se.initX>0)
			se.firstChild.style.left=evnt.clientX+document.body.scrollLeft;
	}
}

function igtbl_resizeDivSelectStart(evnt)
{
	if(!evnt) evnt=event;
	if(!evnt) return;
	return igtbl_cancelEvent(evnt);
}

function igtbl_lineupHeaders(colId,band)
{
	var gs=band.Grid;
	var te=gs.Element;
	var cg=new Array();
	var stat=false;
	if(band.Index==0 && !band.IsGrouped && gs.StationaryMargins>0)
	{
		cg[0]=te.childNodes[0];
		if(gs.StatHeader)
			cg[1]=gs.StatHeader.Element.firstChild;
		if(gs.StatFooter)
			cg[cg.length]=gs.StatFooter.Element.firstChild;
		stat=true;
	}
	else
	{
		var e=igtbl_getDocumentElement(colId);
		if(e && e.length)
			for(var i=0;i<e.length;i++)
				cg[i]=e[i].parentNode.parentNode.previousSibling;
		else if(e)
			cg[0]=e.parentNode.parentNode.previousSibling;
	}
	if(cg.length>0)
	{
		for(var j=0;j<cg.length;j++)
		{
			for(var i=0;i<cg[j].childNodes.length;i++)
			{
				var w=cg[j].childNodes[i].width;
				if(!w || w.substr(w.length-1)=="%")
					cg[j].childNodes[i].oldWidth=cg[j].childNodes[i].offsetWidth;
			}
			if(j>0 && stat)
				cg[j].parentNode.parentNode.style.width="";
			else
				cg[j].parentNode.style.width="";
			for(var i=0;i<cg[j].childNodes.length;i++)
			{
				if(cg[j].childNodes[i].oldWidth)
				{
					if(cg[j].nextSibling)
					{
						var column=igtbl_getColumnById(igtbl_getElemVis(cg[j].nextSibling.firstChild.childNodes,i).id);
						if(column)
							column.Width=cg[j].childNodes[i].oldWidth;
					}
					cg[j].childNodes[i].style.width="";
					cg[j].childNodes[i].width=cg[j].childNodes[i].oldWidth;
					cg[j].childNodes[i].oldWidth=null;
				}
			}
		}
	}
	igtbl_dispose(cg);
	delete cg;
}

function igtbl_headerClickUp(evnt,gn) 
{
	if(!evnt && event)
		evnt=event;
	if(!gn && igtbl_lastActiveGrid)
		gn=igtbl_lastActiveGrid;
	if(!gn || !evnt)
		return false;
	var gs=igtbl_getGridById(gn);
	if(!gs)
		return;
	if(igtbl_button(gn,evnt)==2)
		return;
	var te=gs.Element;
	te.removeAttribute("mouseDown");
	var se=igtbl_srcElement(evnt);
	while(se && (se.tagName!="TH" || se.id.length<gn.length || se.id.substr(0,gn.length)!=gn) && (se.tagName!="DIV" || !se.getAttribute("groupInfo")))
		se=se.parentNode;
	if(!se)
		return;
	if(se.tagName == "TH")
	{
		var column=igtbl_getColumnById(se.id);
		if(!column) return;
		var bandNo=column.Band.Index;
		var columnNo=column.Index;
		var mode=te.getAttribute("elementMode");
		if(mode!="resize")
			igtbl_fireEvent(gn,gs.Events.ColumnHeaderClick,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")");
		if(igtbl_fireEvent(gn,gs.Events.MouseUp,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")")==true)
			return true;
		if(se.cellIndex>column.Band.firstActiveCell-1)
		{
			if(igtbl_getHeaderClickAction(gn,bandNo,columnNo)!=1)
				igtbl_changeStyle(gn,se,null);
			te.removeAttribute("elementMode");
			te.removeAttribute("resizeColumn");
			te.removeAttribute("selectMethod");
			if(!te.getAttribute("shiftSelect"))
				te.removeAttribute("startColumn");
			if(mode!="resize" && (igtbl_getHeaderClickAction(gn,bandNo,columnNo)==2 || igtbl_getHeaderClickAction(gn,bandNo,columnNo)==3) && column.SortIndicator!=3)
			{
				if(gs.Bands[bandNo].ClientSortEnabled)
				{
					gs.startHourGlass();
					gs.sortingColumn=se;
					gs.oldColCursor=se.style.cursor;
					se.style.cursor="wait";
					window.setTimeout("igtbl_gridSortColumn('"+gn+"','"+se.id+"',"+evnt.shiftKey+")",1);
				}
				else
					gs.sortColumn(se.id,evnt.shiftKey);
				if(gs.NeedPostBack)
					igtbl_doPostBack(gn,evnt.shiftKey?"shiftKey:true":"");
			}
			else
			{
				if(mode=="resize")
					igtbl_resizeDivMouseUp(evnt);
				if((mode=="resize" || mode=="select") && gs.NeedPostBack)
					igtbl_doPostBack(gn);
				te.removeAttribute("elementMode");
			}
		}
	}
	else if(se.tagName=="DIV" && se.getAttribute("groupInfo"))
	{
		igtbl_fireEvent(gn,gs.Events.ColumnHeaderClick,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")");
		if(igtbl_fireEvent(gn,gs.Events.MouseUp,"(\""+gn+"\",\""+se.id+"\","+igtbl_button(gn,evnt)+")")==true)
			return;
		var groupInfo=se.getAttribute("groupInfo").split(":");
		if(groupInfo[0]!="band")
		{
			igtbl_changeStyle(gn,se,null);
			var bandNo=igtbl_bandNoFromColId(se.id);
			var columnNo=igtbl_colNoFromColId(se.id);
			var column=gs.Bands[bandNo].Columns[columnNo];
			if((igtbl_getHeaderClickAction(gn,bandNo,columnNo)==2 || igtbl_getHeaderClickAction(gn,bandNo,columnNo)==3) && column.SortIndicator!=3)
			{
				if(gs.Bands[bandNo].ClientSortEnabled)
				{
					gs.startHourGlass();
					gs.sortingColumn=se;
					gs.oldColCursor=se.style.cursor;
					se.style.cursor="wait";
					window.setTimeout("igtbl_gridSortColumn('"+gn+"','"+se.id+"',true)",1);
				}
				else
					gs.sortColumn(se.id,evnt.shiftKey);
				if(gs.NeedPostBack)
					igtbl_doPostBack(gn,evnt.shiftKey?"shiftKey:true":"");
			}
		}
	}
	if(gs.NeedPostBack)
		igtbl_doPostBack(gn,'HeaderClick:'+se.id);
	return true;
}

function igtbl_headerContextMenu(evnt,gn) 
{
	if(!evnt && event)
		evnt=event;
	if(!gn && igtbl_lastActiveGrid)
		gn=igtbl_lastActiveGrid;
	if(!gn || !evnt)
		return false;
	var gs=igtbl_getGridById(gn);
	if(!gs)
		return;