dropmenu.js

ARCGIS程序,可以实现查、缩放等功能

var AgntUsr=navigator.userAgent.toLowerCase();
var DomYes=document.getElementById?1:0;
var NavYes=AgntUsr.indexOf('mozilla')!=-1&&AgntUsr.indexOf('compatible')==-1?1:0;
var ExpYes=AgntUsr.indexOf('msie')!=-1?1:0;
var Opr=AgntUsr.indexOf('opera')!=-1?1:0;
var DomNav=DomYes&&NavYes?1:0;
var DomExp=DomYes&&ExpYes?1:0;
var Nav4=NavYes&&!DomYes&&document.layers?1:0;
var Exp4=ExpYes&&!DomYes&&document.all?1:0;
var PosStrt=(NavYes||ExpYes)&&!Opr?1:0;

var FrstLoc,ScLoc,DcLoc;
var ScWinWdth,ScWinHght,FrstWinWdth,FrstWinHght;
var ScLdAgainWin;
var FirstColPos,SecColPos,DocColPos;
var RcrsLvl=0;
var FrstCreat=1,Loadd=0,Creatd=0,IniFlg,AcrssFrms=1;
var FrstCntnr=null,CurrntOvr=null,CloseTmr=null;
var PreCntnr=null;
var CntrTxt,TxtClose,ImgStr;
var Ztop=1;
var ShwFlg=0;
var M_StrtTp=StartTop,M_StrtLft=StartLeft;
var StaticPos=0;
var LftXtra=DomNav?LeftPaddng:0;
var TpXtra=DomNav?TopPaddng:0;
var M_Hide=Nav4?'hide':'hidden';
var M_Show=Nav4?'show':'visible';
var Par=parent.frames[0]&&FirstLineFrame!=SecLineFrame?parent:window;
var Doc=Par.document;
var Bod=Doc.body;
var Trigger=NavYes?Par:Bod;
var SelectPathStru;
var SubPathNum=0;

var MenuClicked;

MenuTextCentered=MenuTextCentered==1||MenuTextCentered=='center'?'center':MenuTextCentered==0||MenuTextCentered!='right'?'left':'right';
WbMstrAlrts=["Item not defined: ","Item needs height: ","Item needs width: "];

if(Trigger.onload)Dummy=Trigger.onload;
if(DomNav&&!Opr)Trigger.addEventListener('load',Go,false);
else Trigger.onload=Go;

function Dummy(){}

function CnclSlct(){return false}

function RePos(){
	if(NoOffFirstLineMenus<=0) return;
	FrstWinWdth=ExpYes?FrstLoc.document.body.clientWidth:FrstLoc.innerWidth;
	FrstWinHght=ExpYes?FrstLoc.document.body.clientHeight:FrstLoc.innerHeight;
	ScWinWdth=ExpYes?ScLoc.document.body.clientWidth:ScLoc.innerWidth;
	ScWinHght=ExpYes?ScLoc.document.body.clientHeight:ScLoc.innerHeight;
	if(MenuCentered=='justify'&&FirstLineHorizontal){
		FrstCntnr.style.width=FrstWinWdth;
		ClcJus();
		var P=FrstCntnr.FrstMbr,W=Menu1[5],i;
		for(i=0;i<NoOffFirstLineMenus;i++){
			P.style.width=W;
			P=P.PrvMbr;
		}
	}
	StaticPos=-1;
	if(TargetLoc)ClcTrgt();
	if(MenuCentered)ClcLft();
	if(MenuVerticalCentered)ClcTp();
	//modify by wangcq
	var count=NoOffFirstLineMenus/MenuLineCount;
	if((NoOffFirstLineMenus % MenuLineCount)!=0){
		count=count+1;
	}

	var Cntnr=document.LastCntnr;
	var i=1;
	while(Cntnr!=null){
		PosMenu(Cntnr,StartTop+(count-i)*22,StartLeft);
		Cntnr=Cntnr.Pre;
		i++;
	}
	//end modify
	//PosMenu(FrstCntnr,StartTop,StartLeft);
}

function UnLoaded(){
	if(CloseTmr)clearTimeout(CloseTmr);
	Loadd=0; Creatd=0;
	if(HideTop){
		var FCStyle=Nav4?FrstCntnr:FrstCntnr.style;
		FCStyle.visibility=M_Hide;
	}
}

function ReDoWhole(){
	if(ScWinWdth!=ScLoc.innerWidth||ScWinHght!=ScLoc.innerHeight||FrstWinWdth!=FrstLoc.innerWidth||FrstWinHght!=FrstLoc.innerHeight)Doc.location.reload();
}

function Check(WMnu,NoOf){
	var i,array,ArrayLoc;
	ArrayLoc=parent.frames[0]?parent.frames[FirstLineFrame]:self;
	for(i=0;i<NoOf;i++){
		array=WMnu+eval(i+1);
		if(!ArrayLoc[array]){WbMstrAlrt(0,array); return false;}
		if(i==0){	
			if(!ArrayLoc[array][4]){WbMstrAlrt(1,array); return false;}
			if(!ArrayLoc[array][5]){WbMstrAlrt(2,array); return false;}
		}
		if(ArrayLoc[array][3])if(!Check(array+'_',ArrayLoc[array][3])) return false;}
	return true;
}

function WbMstrAlrt(No,Xtra){
	return confirm(WbMstrAlrts[No]+Xtra+'   ')
}

function Go(){
	Dummy();
	if(Loadd||!PosStrt)return;
	BeforeStart();
	Creatd=0; Loadd=1;
	status='Building menu';
	if(FrstCreat){
		if(FirstLineFrame =="" || !parent.frames[FirstLineFrame]){
			FirstLineFrame=SecLineFrame;
			if(FirstLineFrame =="" || !parent.frames[FirstLineFrame]){
				FirstLineFrame=SecLineFrame=DocTargetFrame;
				if(FirstLineFrame =="" || !parent.frames[FirstLineFrame])
					FirstLineFrame=SecLineFrame=DocTargetFrame=''
			}
		}
		if(SecLineFrame =="" || !parent.frames[SecLineFrame]){
			SecLineFrame=DocTargetFrame;
			if(SecLineFrame =="" || !parent.frames[SecLineFrame])
				SecLineFrame=DocTargetFrame=FirstLineFrame
		}
		if(DocTargetFrame =="" || !parent.frames[DocTargetFrame])DocTargetFrame=SecLineFrame;
		if(WebMasterCheck){	
			if(!Check('Menu',NoOffFirstLineMenus)){
				status='build aborted';
			}
		}
		FrstLoc=FirstLineFrame!=""?parent.frames[FirstLineFrame]:window;
		ScLoc=SecLineFrame!=""?parent.frames[SecLineFrame]:window;
		DcLoc=DocTargetFrame!=""?parent.frames[DocTargetFrame]:window;
		if (FrstLoc==ScLoc) AcrssFrms=0;
		if (AcrssFrms)FirstLineHorizontal=MenuFramesVertical?0:1;
		FrstWinWdth=ExpYes?FrstLoc.document.body.clientWidth:FrstLoc.innerWidth;
		FrstWinHght=ExpYes?FrstLoc.document.body.clientHeight:FrstLoc.innerHeight;
		ScWinWdth=ExpYes?ScLoc.document.body.clientWidth:ScLoc.innerWidth;
		ScWinHght=ExpYes?ScLoc.document.body.clientHeight:ScLoc.innerHeight;
		if(Nav4){	
			CntrTxt=MenuTextCentered!='left'?"<div align='"+MenuTextCentered+"'>":"";
			TxtClose="</font>"+MenuTextCentered!='left'?"</div>":""
		}
	}
	FirstColPos=Nav4?FrstLoc.document:FrstLoc.document.body;
	SecColPos=Nav4?ScLoc.document:ScLoc.document.body;
	DocColPos=Nav4?DcLoc.document:ScLoc.document.body;
	if (TakeOverBgColor)FirstColPos.bgColor=AcrssFrms?SecColPos.bgColor:DocColPos.bgColor;
	if(MenuCentered=='justify'&&FirstLineHorizontal)ClcJus();
	var count=NoOffFirstLineMenus/MenuLineCount;
	if((NoOffFirstLineMenus % MenuLineCount)!=0){
		count=count+1;
	}

	for(var i=1;i<=count;i++){
			FrstCntnr=CreateMenuStructure('Menu',NoOffFirstLineMenus,MenuLineCount*(i-1)+1);
			FrstCreat=AcrssFrms?0:1;
			FrstCntnr.Level=1;	
			FrstCntnr.Pre=PreCntnr;
			PreCntnr = FrstCntnr;
		if(TargetLoc)ClcTrgt();
		if(MenuCentered)ClcLft();
		if(MenuVerticalCentered)ClcTp();
		
		PosMenu(FrstCntnr,StartTop+(i-1)*22,StartLeft);		
		IniFlg=1;
		Initiate();		
	}
	document.LastCntnr=FrstCntnr;
	Creatd=1;
	ScLdAgainWin=ExpYes?ScLoc.document.body:ScLoc;
	ScLdAgainWin.onunload=UnLoaded;
	Trigger.onresize=Nav4?ReDoWhole:RePos;
	AfterBuild();
	if(WriteToFile==1)
		wirte_file(document.body.innerHTML);
	if(MenuVerticalCentered=='static'&&!AcrssFrms)setInterval('KeepPos()',250);
	status='Menu ready for use'
}

function KeepPos(){
	var TS=ExpYes?FrstLoc.document.body.scrollTop:FrstLoc.pageYOffset;
	if(TS!=StaticPos){
		var FCStyle=Nav4?FrstCntnr:FrstCntnr.style;
		FCStyle.top=FrstCntnr.OrgTop=StartTop+TS;StaticPos=TS}}

function ClcJus(){
	var a=BorderBtwnElmnts?1:2,b=BorderBtwnElmnts?BorderWidth:0;
	var Size=Math.round(((FrstWinWdth-a*BorderWidth)/NoOffFirstLineMenus)-b),i,j;
	for(i=1;i<NoOffFirstLineMenus+1;i++){
		j=eval('Menu'+i);
		j[5]=Size;
	}
	StartLeft=0;
}

function ClcTrgt(){
	var TLoc=Nav4?FrstLoc.document.layers[TargetLoc]:DomYes?FrstLoc.document.getElementById(TargetLoc):FrstLoc.document.all[TargetLoc];
	StartTop=M_StrtTp;
	StartLeft=M_StrtLft;
	if(DomYes){
		while(TLoc){
			StartTop+=TLoc.offsetTop;StartLeft+=TLoc.offsetLeft;TLoc=TLoc.offsetParent;
		}
	}
	else{	
		StartTop+=Nav4?TLoc.pageY:TLoc.offsetTop;StartLeft+=Nav4?TLoc.pageX:TLoc.offsetLeft;
	}
}

function ClcLft(){
	if(MenuCentered!='left'&&MenuCentered!='justify'){
		var Size=FrstWinWdth-(!Nav4?parseInt(FrstCntnr.style.width):FrstCntnr.clip.width);
		StartLeft=M_StrtLft;
		StartLeft+=MenuCentered=='right'?Size:Size/2;
	}
}

function ClcTp(){
	if(MenuVerticalCentered!='top'&&MenuVerticalCentered!='static'){
		var Size=FrstWinHght-(!Nav4?parseInt(FrstCntnr.style.height):FrstCntnr.clip.height);
		StartTop=M_StrtTp;
		StartTop+=MenuVerticalCentered=='bottom'?Size:Size/2;
	}
}

function PosMenu(CntnrPntr,Tp,Lt){
	var Topi,Lefti,Hori;
	var Cntnr=CntnrPntr;
	var Mmbr=Cntnr.FrstMbr;
	var CntnrStyle=!Nav4?Cntnr.style:Cntnr;
	var MmbrStyle=!Nav4?Mmbr.style:Mmbr;
	var PadL=Mmbr.value.indexOf('<')==-1?LftXtra:0;
	var PadT=Mmbr.value.indexOf('<')==-1?TpXtra:0;
	var MmbrWt=!Nav4?parseInt(MmbrStyle.width)+PadL:MmbrStyle.clip.width;
	var MmbrHt=!Nav4?parseInt(MmbrStyle.height)+PadT:MmbrStyle.clip.height;
	var CntnrWt=!Nav4?parseInt(CntnrStyle.width):CntnrStyle.clip.width;
	var CntnrHt=!Nav4?parseInt(CntnrStyle.height):CntnrStyle.clip.height;
	var SubTp,SubLt;
	RcrsLvl++;
	if (RcrsLvl==1 && AcrssFrms)!MenuFramesVertical?Tp=FrstWinHght-CntnrHt+(Nav4?4:0):Lt=RightToLeft?0:FrstWinWdth-CntnrWt+(Nav4?4:0);
	if (RcrsLvl==2 && AcrssFrms)!MenuFramesVertical?Tp=0:Lt=RightToLeft?ScWinWdth-CntnrWt:0;
	if (RcrsLvl==2 && AcrssFrms){
		Tp+=VerCorrect;
		Lt+=HorCorrect;
	}
	CntnrStyle.top=RcrsLvl==1?Tp:0;
	Cntnr.OrgTop=Tp;
	CntnrStyle.left=RcrsLvl==1?Lt:0;
	Cntnr.OrgLeft=Lt;
	if (RcrsLvl==1 && FirstLineHorizontal){
		Hori=1;Lefti=CntnrWt-MmbrWt-2*BorderWidth;Topi=0;	
	}
	else{	
		Hori=Lefti=0;Topi=CntnrHt-MmbrHt-2*BorderWidth;
	}
	while(Mmbr!=null){		
		MmbrStyle.left=Lefti+BorderWidth;
		MmbrStyle.top=Topi+BorderWidth;
		if(Nav4)Mmbr.CmdLyr.moveTo(Lefti+BorderWidth,Topi+BorderWidth);
		if(Mmbr.ChildCntnr){
			if(RightToLeft)ChldCntnrWdth=Nav4?Mmbr.ChildCntnr.clip.width:parseInt(Mmbr.ChildCntnr.style.width);
			if(Hori){	
				SubTp=Topi+MmbrHt+2*BorderWidth;
				SubLt=RightToLeft?Lefti+MmbrWt-ChldCntnrWdth:Lefti;
			}
			else{	
				SubLt=RightToLeft?Lefti-ChldCntnrWdth+ChildOverlap*MmbrWt+BorderWidth:Lefti+(1-ChildOverlap)*MmbrWt+BorderWidth;
				SubTp=RcrsLvl==1&&AcrssFrms?Topi:Topi+ChildVerticalOverlap*MmbrHt;
			}
			PosMenu(Mmbr.ChildCntnr,SubTp,SubLt);
		}
		Mmbr=Mmbr.PrvMbr;
		
		if(Mmbr){	
			MmbrStyle=!Nav4?Mmbr.style:Mmbr;
			PadL=Mmbr.value.indexOf('<')==-1?LftXtra:0;
			PadT=Mmbr.value.indexOf('<')==-1?TpXtra:0;
			MmbrWt=!Nav4?parseInt(MmbrStyle.width)+PadL:MmbrStyle.clip.width;
			MmbrHt=!Nav4?parseInt(MmbrStyle.height)+PadT:MmbrStyle.clip.height;
			Hori?Lefti-=BorderBtwnElmnts?(MmbrWt+BorderWidth):(MmbrWt):Topi-=BorderBtwnElmnts?(MmbrHt+BorderWidth):(MmbrHt);
		}
	}
	RcrsLvl--;
}

function Initiate(){
	if(IniFlg){	
		var Cntnr=document.LastCntnr;
		while(Cntnr!=null){
			Init(Cntnr);
			Cntnr=Cntnr.Pre;
		}

		ShowSelect(document,true);

		Init(FrstCntnr);
		IniFlg=0;
		if(ShwFlg)AfterCloseAll();
		ShwFlg=0;
	}
}

function Init(CntnrPntr){
	var Mmbr=CntnrPntr.FrstMbr;
	var MCStyle=Nav4?CntnrPntr:CntnrPntr.style;
	RcrsLvl++;
	if(!MenuClicked || RcrsLvl!=1)
	MCStyle.visibility=RcrsLvl==1?M_Show:M_Hide;
	while(Mmbr!=null){
		if(Mmbr.Hilite){
			Mmbr.Hilite=0;
			if(KeepHilite)LowItem(Mmbr);
		}
		if(Mmbr.ChildCntnr) Init(Mmbr.ChildCntnr);
		Mmbr=Mmbr.PrvMbr;
	}
	RcrsLvl--;
}

function ClearAllChilds(Pntr){
	var CPCCStyle;
	while (Pntr){
		if(Pntr.Hilite){
			Pntr.Hilite=0;
			if(KeepHilite)LowItem(Pntr);
			if(Pntr.ChildCntnr){
				CPCCStyle=Nav4?Pntr.ChildCntnr:Pntr.ChildCntnr.style;
				CPCCStyle.visibility=M_Hide;
				ClearAllChilds(Pntr.ChildCntnr.FrstMbr);
			}
			break;
		}
		Pntr=Pntr.PrvMbr;
	}
}

function GoTo(){
	SaveSubPath();
	if(this.LinkTxt=='#') return;
	if(this.LinkTxt){
		if(this.LinkTxt.indexOf("?")==-1)
			this.LinkTxt = this.LinkTxt+"?hciCurMenuPath="+GetCookie("hciCurMenuPath")+"&hciTopMenuPath="+GetCookie("hciTopMenuPath");
		else
			this.LinkTxt = this.LinkTxt+"&hciCurMenuPath="+GetCookie("hciCurMenuPath")+"&hciTopMenuPath="+GetCookie("hciTopMenuPath");
		status='';
		var HP=Nav4?this.LowLyr:this;
		LowItem(HP);
		this.LinkTxt.indexOf('javascript:')!=-1?eval(this.LinkTxt):DcLoc.location.href=this.LinkTxt;		
		MenuClicked=true;
	}
}

function HiliteItem(P){
	if(Nav4){
		if(P.ro)P.document.images[P.rid].src=P.ri2;
		else{	
			if(P.HiBck)P.bgColor=P.HiBck;
			if(P.value.indexOf('<img')==-1){
				P.document.write(P.Ovalue);
				P.document.close();
			}
		}
	}
	else{	
		if(P.ro){	
			var Lc=P.Level==1?FrstLoc:ScLoc;
			Lc.document.images[P.rid].src=P.ri2;
		}
		else{	
			if(P.HiBck)P.style.backgroundColor=P.HiBck;
			if(P.HiFntClr)P.style.color=P.HiFntClr;
		}
	}
	P.Hilite=1;
}

function LowItem(P){
	if(P.ro){	
		if(Nav4)P.document.images[P.rid].src=P.ri1;
		else{	
			var Lc=P.Level==1?FrstLoc:ScLoc;
			Lc.document.images[P.rid].src=P.ri1;
		}
	}
	else{	
		if(Nav4){	
			if(P.LoBck)P.bgColor=P.LoBck;
			if(P.value.indexOf('<img')==-1){
				P.document.write(P.value);
				P.document.close();
			}
		}
		else{	
			if(P.LoBck)P.style.backgroundColor=P.LoBck;
			if(P.LwFntClr)P.style.color=P.LwFntClr;
		}
	}
}

function OpenMenu(){	
	if(!Loadd||!Creatd) return;

	ShowSelect(document,false);

	var TpScrlld=ExpYes?ScLoc.document.body.scrollTop:ScLoc.pageYOffset;
	var LScrlld=ExpYes?ScLoc.document.body.scrollLeft:ScLoc.pageXOffset;
	var CCnt=Nav4?this.LowLyr.ChildCntnr:this.ChildCntnr;
	var ThisHt=Nav4?this.clip.height:parseInt(this.style.height);
	var ThisWt=Nav4?this.clip.width:parseInt(this.style.width);
	var ThisLft=AcrssFrms&&this.Level==1&&!FirstLineHorizontal?0:Nav4?this.Container.left:parseInt(this.Container.style.left);
	var ThisTp=AcrssFrms&&this.Level==1&&FirstLineHorizontal?0:Nav4?this.Container.top:parseInt(this.Container.style.top);
	var HP=Nav4?this.LowLyr:this;
	CurrntOvr=this;
	IniFlg=0;

	//modify by wangcq
	if(this.Container.Level==1){
		var Cntnr=document.LastCntnr;
		while(Cntnr!=null){
			ClearAllChilds(Cntnr.FrstMbr);
			Cntnr=Cntnr.Pre;
		}
		window.first = this.value;
		SubPathNum = 1;
	}else{
		SetSubPath(this.Level,this.value);
		ClearAllChilds(this.Container.FrstMbr);
	}

	//end modify
	HiliteItem(HP);
	if(CCnt!=null){
		if(!ShwFlg){
			ShwFlg=1;	
			BeforeFirstOpen();
		}
		var CCW=Nav4?this.LowLyr.ChildCntnr.clip.width:parseInt(this.ChildCntnr.style.width);
		var CCH=Nav4?this.LowLyr.ChildCntnr.clip.height:parseInt(this.ChildCntnr.style.height);
		var ChCntTL=Nav4?this.LowLyr.ChildCntnr:this.ChildCntnr.style;
		var SubLt=AcrssFrms&&this.Level==1?CCnt.OrgLeft+ThisLft+LScrlld:CCnt.OrgLeft+ThisLft;
		var SubTp=AcrssFrms&&this.Level==1?CCnt.OrgTop+ThisTp+TpScrlld:CCnt.OrgTop+ThisTp;
		if(MenuWrap){
			if(RightToLeft){
				if(SubLt<LScrlld)SubLt=this.Level==1?LScrlld:SubLt+(CCW+(1-2*ChildOverlap)*ThisWt);
				if(SubLt+CCW>ScWinWdth+LScrlld)SubLt=ScWinWdth+LScrlld-CCW;
			}
			else{	
				if(SubLt+CCW>ScWinWdth+LScrlld)SubLt=this.Level==1?ScWinWdth+LScrlld-CCW:SubLt-(CCW+(1-2*ChildOverlap)*ThisWt);
				if(SubLt<LScrlld)SubLt=LScrlld;
			}