coordinates of dragged layers are returned in IE, but not NS

liglin · Jun 21, 2001

Why does the following code shows the coordinates of dragged layers in IE but not in NS?

========================================================
<HTML>
<HEAD>
<TITLE>Untitled Document</TITLE>
<META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script language="JavaScript">
<!--
function AnnouncementsCoordinates(x,y,txtAnnouncements)
{
txtAnnouncements.textfield1x.value = x
txtAnnouncements.textfield1y.value = y
}

function PharmaSitesCoordinates(x,y, txtPharmaSites)
{
txtPharmaSites.textfield2x.value = x
txtPharmaSites.textfield2y.value = y
}

function MM_findObj(n, d) { //v3.0
var p,i,x; if(!d) d=document; if((p=n.indexOf("?&quot

)>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers.document); return x;
}

function MM_dragLayer(objName,x,hL,hT,hW,hH,toFront,dropBack,cU,cD,cL,cR,targL,targT,tol,dropJS,et,dragJS) { //v3.0
//Copyright 1998 Macromedia, Inc. All rights reserved.
var i,j,aLayer,retVal,curDrag=null,NS=(navigator.appName=='Netscape'), curLeft, curTop;
if (!document.all && !document.layers) return false;
retVal = true; if(!NS && event) event.returnValue = true;
if (MM_dragLayer.arguments.length > 1) {
curDrag = MM_findObj(objName); if (!curDrag) return false;
if (!document.allLayers) { document.allLayers = new Array();
with (document) if (NS) { for (i=0; i<layers.length; i++) allLayers=layers;
for (i=0; i<allLayers.length; i++) if (allLayers.document && allLayers.document.layers)
with (allLayers.document) for (j=0; j<layers.length; j++) allLayers[allLayers.length]=layers[j];
} else for (i=0;i<all.length;i++) if (all.style&&all.style.position) allLayers[allLayers.length]=all;}
curDrag.MM_dragOk=true; curDrag.MM_targL=targL; curDrag.MM_targT=targT;
curDrag.MM_tol=Math.pow(tol,2); curDrag.MM_hLeft=hL; curDrag.MM_hTop=hT;
curDrag.MM_hWidth=hW; curDrag.MM_hHeight=hH; curDrag.MM_toFront=toFront;
curDrag.MM_dropBack=dropBack; curDrag.MM_dropJS=dropJS;
curDrag.MM_everyTime=et; curDrag.MM_dragJS=dragJS;
curDrag.MM_oldZ = (NS)?curDrag.zIndex:curDrag.style.zIndex;
curLeft= (NS)?curDrag.left:curDrag.style.pixelLeft; curDrag.MM_startL = curLeft;
curTop = (NS)?curDrag.top:curDrag.style.pixelTop; curDrag.MM_startT = curTop;
curDrag.MM_bL=(cL<0)?null:curLeft-cL; curDrag.MM_bT=(cU<0)?null:curTop -cU;
curDrag.MM_bR=(cR<0)?null:curLeft+cR; curDrag.MM_bB=(cD<0)?null:curTop +cD;
curDrag.MM_LEFTRIGHT=0; curDrag.MM_UPDOWN=0; curDrag.MM_SNAPPED=false; //use in your JS!
document.onmousedown = MM_dragLayer; document.onmouseup = MM_dragLayer;
if (NS) document.captureEvents(Event.MOUSEDOWN|Event.MOUSEUP);
} else {
var theEvent = ((NS)?objName.type:event.type);
if (theEvent == 'mousedown') {
var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
var maxDragZ=null; document.MM_maxZ = 0;
for (i=0; i<document.allLayers.length; i++) { aLayer = document.allLayers;
var aLayerZ = (NS)?aLayer.zIndex:aLayer.style.zIndex;
if (aLayerZ > document.MM_maxZ) document.MM_maxZ = aLayerZ;
var isVisible = (((NS)?aLayer.visibility:aLayer.style.visibility).indexOf('hid') == -1);
if (aLayer.MM_dragOk != null && isVisible) with (aLayer) {
var parentL=0; var parentT=0;
if (!NS) { parentLayer = aLayer.parentElement;
while (parentLayer != null && parentLayer.style.position) {
parentL += parentLayer.offsetLeft; parentT += parentLayer.offsetTop;
parentLayer = parentLayer.parentElement; } }
var tmpX=mouseX-(((NS)?pageX:style.pixelLeft+parentL)+MM_hLeft);
var tmpY=mouseY-(((NS)?pageY:style.pixelTop +parentT)+MM_hTop);
var tmpW = MM_hWidth; if (tmpW <= 0) tmpW += ((NS)?clip.width ffsetWidth);
var tmpH = MM_hHeight; if (tmpH <= 0) tmpH += ((NS)?clip.heightffsetHeight);
if ((0 <= tmpX && tmpX < tmpW && 0 <= tmpY && tmpY < tmpH) && (maxDragZ == null
|| maxDragZ <= aLayerZ)) { curDrag = aLayer; maxDragZ = aLayerZ; } } }
if (curDrag) {
document.onmousemove = MM_dragLayer; if (NS) document.captureEvents(Event.MOUSEMOVE);
curLeft = (NS)?curDrag.left:curDrag.style.pixelLeft;
curTop = (NS)?curDrag.top:curDrag.style.pixelTop;
MM_oldX = mouseX - curLeft; MM_oldY = mouseY - curTop;
document.MM_curDrag = curDrag; curDrag.MM_SNAPPED=false;
if(curDrag.MM_toFront) {
eval('curDrag.'+((NS)?'':'style.')+'zIndex=document.MM_maxZ+1');
if (!curDrag.MM_dropBack) document.MM_maxZ++; }
retVal = false; if(!NS) event.returnValue = false;
} } else if (theEvent == 'mousemove') {
if (document.MM_curDrag) with (document.MM_curDrag) {
var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
newLeft = mouseX-MM_oldX; newTop = mouseY-MM_oldY;
if (MM_bL!=null) newLeft = Math.max(newLeft,MM_bL);
if (MM_bR!=null) newLeft = Math.min(newLeft,MM_bR);
if (MM_bT!=null) newTop = Math.max(newTop ,MM_bT);
if (MM_bB!=null) newTop = Math.min(newTop ,MM_bB);
MM_LEFTRIGHT = newLeft-MM_startL; MM_UPDOWN = newTop-MM_startT;
if (NS) {left = newLeft; top = newTop;}
else {style.pixelLeft = newLeft; style.pixelTop = newTop;}
if (MM_dragJS) eval(MM_dragJS);
retVal = false; if(!NS) event.returnValue = false;
} } else if (theEvent == 'mouseup') {
document.onmousemove = null;
if (NS) document.releaseEvents(Event.MOUSEMOVE);
if (NS) document.captureEvents(Event.MOUSEDOWN); //for mac NS
if (document.MM_curDrag) with (document.MM_curDrag) {
if (typeof MM_targL =='number' && typeof MM_targT == 'number' &&
(Math.pow(MM_targL-((NS)?left:style.pixelLeft),2)+
Math.pow(MM_targT-((NS)?top:style.pixelTop),2))<=MM_tol) {
if (NS) {left = MM_targL; top = MM_targT;}
else {style.pixelLeft = MM_targL; style.pixelTop = MM_targT;}
MM_SNAPPED = true; MM_LEFTRIGHT = MM_startL-MM_targL; MM_UPDOWN = MM_startT-MM_targT; }
if (MM_everyTime || MM_SNAPPED) eval(MM_dropJS);
if(MM_dropBack) {if (NS) zIndex = MM_oldZ; else style.zIndex = MM_oldZ;}
retVal = false; if(!NS) event.returnValue = false; }
document.MM_curDrag = null;
}
if (NS) document.routeEvent(objName);
} return retVal;
}
//-->
</script>
</HEAD>

<BODY bgcolor="#FFFFFF" onLoad="MM_dragLayer('Announcements','',0,0,0,0,true,false,-1,-1,-1,-1,false,false,0,'AnnouncementsCoordinates(MM_LEFTRIGHT,MM_UPDOWN, document.Form1)',true,'');
MM_dragLayer('PharmaSites','',0,0,0,0,true,false,-1,-1,-1,-1,false,false,0,'PharmaSitesCoordinates(MM_LEFTRIGHT,MM_UPDOWN,document.Form1)',true,'')">
<FORM name="Form1">
<TABLE width="65%" align="center">
<TR>
<TD width="188"> </TD>
<TD width="118">
<DIV align="center"><B>x</B></DIV>
</TD>
<TD width="180">
<DIV align="center"><B>y</B></DIV>
</TD>
</TR>
<TR>
<TD width="188">Announcements coordinates:</TD>
<TD width="118">
<INPUT type="text" name="textfield1x">
</TD>
<TD width="180">
<INPUT type="text" name="textfield1y">
</TD>
</TR>
<TR>
<TD width="188">Pharma sites coordinates:</TD>
<TD width="118">
<INPUT type="text" name="textfield2x">
</TD>
<TD width="180">
<INPUT type="text" name="textfield2y">
</TD>
</TR>
</TABLE>
</FORM>
<P> </P>
<P> </P>
<DIV id="Announcements" style="position:absolute; width:100px; height:20px; z-index:1; left: 53px; top: 201px">Announcements</DIV>
<DIV id="PharmaSites" style="position:absolute; width:78px; height:19px; z-index:2; left: 58px; top: 286px">PharmaSites</DIV>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
<P> </P>
</BODY>
</HTML>

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coordinates of dragged layers are returned in IE, but not NS

liglin

Programmer

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