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<!--
// -------------------------------------------------------------
// Copyright DTLink, LLC 2005.
// by: Yermo Lamers
//
// This software is governed by the new BSD License. Please see the
// accompanying LICENSE.txt file.
//
// See assets/domdrag.js and assets/draglist.js
//
// For more information please see:
//
// http://www.formvista.com/otherprojects/draglist.html
?>
-->
<html><head>
<title>DragList - Javascript Drag and Drop Ordered Lists in Javascript</title>
<!-- dom-drag.js -->
<script language="JavaScript" type="text/javascript">
/**************************************************
* dom-drag.js
* 09.25.2001
* www.youngpup.net
**************************************************
* 10.28.2001 - fixed minor bug where events
* sometimes fired off the handle, not the root.
**************************************************
* 05.30.2005 - added a workaround for firefox
* activating links when finished dragging.
* mmosier@astrolabe.com
**************************************************/
var Drag = {
obj : null,
init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
{
o.onmousedown = Drag.start;
o.hmode = bSwapHorzRef ? false : true ;
o.vmode = bSwapVertRef ? false : true ;
o.root = oRoot && oRoot != null ? oRoot : o ;
if (o.hmode && isNaN(parseInt(o.root.style.left ))) o.root.style.left = "0px";
if (o.vmode && isNaN(parseInt(o.root.style.top ))) o.root.style.top = "0px";
if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right = "0px";
if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";
o.minX = typeof minX != 'undefined' ? minX : null;
o.minY = typeof minY != 'undefined' ? minY : null;
o.maxX = typeof maxX != 'undefined' ? maxX : null;
o.maxY = typeof maxY != 'undefined' ? maxY : null;
o.xMapper = fXMapper ? fXMapper : null;
o.yMapper = fYMapper ? fYMapper : null;
o.root.onDragStart = new Function();
o.root.onDragEnd = new Function();
o.root.onDrag = new Function();
},
start : function(e)
{
var o = Drag.obj = this;
e = Drag.fixE(e);
var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
o.root.onDragStart(x, y);
o.startX = x;
o.startY = y;
o.lastMouseX = e.clientX;
o.lastMouseY = e.clientY;
if (o.hmode) {
if (o.minX != null) o.minMouseX = e.clientX - x + o.minX;
if (o.maxX != null) o.maxMouseX = o.minMouseX + o.maxX - o.minX;
} else {
if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
}
if (o.vmode) {
if (o.minY != null) o.minMouseY = e.clientY - y + o.minY;
if (o.maxY != null) o.maxMouseY = o.minMouseY + o.maxY - o.minY;
} else {
if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
}
document.onmousemove = Drag.drag;
document.onmouseup = Drag.end;
if (o.linkDisabled) {
var hrefs = o.root.getElementsByTagName("a");
for (var i = 0; i < hrefs.length; i++) {
hrefs[i].onclick = hrefs[i].prevOnclick;
hrefs[i].prevOnclick = null;
}
o.linkDisabled = false;
}
return false;
},
drag : function(e)
{
e = Drag.fixE(e);
var o = Drag.obj;
var ey = e.clientY;
var ex = e.clientX;
var y = parseInt(o.vmode ? o.root.style.top : o.root.style.bottom);
var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
var nx, ny;
if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);
nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));
if (o.xMapper) nx = o.xMapper(y)
else if (o.yMapper) ny = o.yMapper(x)
Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
Drag.obj.lastMouseX = ex;
Drag.obj.lastMouseY = ey;
var threshold = 4;
if (!o.linkDisabled) {
if (Math.abs(nx - o.startX) > threshold || Math.abs(ny - o.startY) > threshold) {
var hrefs = o.root.getElementsByTagName("a");
for (var i = 0; i < hrefs.length; i++) {
hrefs[i].prevOnclick = hrefs[i].onclick;
hrefs[i].onclick = function() { return false; };
}
o.linkDisabled = true;
}
}
Drag.obj.root.onDrag(nx, ny, Drag.obj.root);
return false;
},
end : function()
{
document.onmousemove = null;
document.onmouseup = null;
Drag.obj.root.onDragEnd( parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]),
parseInt(Drag.obj.root.style[Drag.obj.vmode
? "top" : "bottom"]), Drag.obj.root);
Drag.obj = null;
},
fixE : function(e)
{
if (typeof e == 'undefined') e = window.event;
if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
return e;
}
};
</script>
<!-- draglist.js -->
<script language="JavaScript" type="text/javascript">
// ----------------------------------------------------------------------------
// (c) Copyright, DTLink, LLC 1997-2005
// http://www.dtlink.com
//
// DragList - Drag and Drop Ordered Lists
//
// Javascript Support file for formVista <draglist> fvml tag.
//
// For more information please see:
//
// http://www.formvista.com/otherprojects/draglist.html
//
// For questions or comments please contact us at:
//
// http://www.formvista.com/contact.html
//
// LICENSE: This file is governed by the new BSD license. For more information
// please see the LICENSE.txt file accompanying this package.
//
// REVISION HISTORY:
//
// 2004-11-12 YmL:
// . initial revision.
//
// 2005-05-28 YmL:
// . pulled out of formVista, relicensed and packaged as a standalone implementation.
//
// 2005-06-02 mtmosier:
// . added horizontal dragging support.
//
// ------------------------
/**
* constructor for dragList class
*/
function fv_dragList( name )
{
// name of this dragList. Must match the id of the root DIV tag.
this.dragListRootId = name;
// array of item offsets
this.offsetsX = new Array();
this.offsetsY = new Array();
}
// ----------------------------------------------
/**
* setup the draglist prior to use
*
* @param string orientation defaults to vert. if set to "horz" renders horizontally.
* @param string itemTagName. if null defaults to "div". Can be "span".
*/
fv_dragList.prototype.setup = function( orientation, itemTagName )
{
var horizontal;
if ( orientation == "horz" )
horizontal = true;
else
horizontal = false;
this.listRoot = document.getElementById( this.dragListRootId );
this.listItems = this.getListItems( itemTagName );
for (var i = 0; i < this.listItems.length; i++)
{
if ( this.listItems[i] == undefined )
continue;
if ( horizontal )
{
Drag.init(this.listItems[i], null, null, null, 0, 0);
}
else
{
Drag.init(this.listItems[i], null, 0, 0, null, null);
}
// ---------------------------------------------------
// on drag method
this.listItems[i].onDrag = function( x, y, thisElem )
{
x = thisElem.offsetLeft;
y = thisElem.offsetTop;
// this is a callback from the dom-drag code. From within this
// function "this" does not refer to the fv_draglist function.
draglist = getDragList( thisElem );
draglist.recalcOffsets( itemTagName );
var pos = draglist.getCurrentOffset( thisElem, itemTagName );
//var listItems = this.getListItems( itemTagName );
// if bottom edge is below top of lower item.
var testMoveUp;
var testMoveDown;
if ( horizontal )
{
testMoveUp = (x + draglist.getDivWidth(thisElem) > draglist.offsetsX[pos + 1] + draglist.getDivWidth( draglist.listItems[pos + 1] ));
testMoveDown = x < draglist.offsetsX[pos - 1];
}
else
{
testMoveUp = (y + draglist.getDivHeight(thisElem) > draglist.offsetsY[pos + 1] + draglist.getDivHeight( draglist.listItems[pos + 1] ));
testMoveDown = y < draglist.offsetsY[pos - 1];
}
if (( pos != draglist.listItems.length - 1) && testMoveUp )
{
draglist.listRoot.removeChild(thisElem);
if ( pos + 1 == draglist.listItems.length )
{
draglist.listRoot.appendChild( thisElem );
}
else
{
draglist.listRoot.insertBefore(thisElem, draglist.listItems[pos+1]);
}
thisElem.style["top"] = "0px";
thisElem.style["left"] = "0px";
}
else if ( pos != 0 && testMoveDown )
{
draglist.listRoot.removeChild(thisElem);
draglist.listRoot.insertBefore(thisElem, draglist.listItems[pos-1]);
thisElem.style["top"] = "0px";
thisElem.style["left"] = "0px";
}
};
this.listItems[i].onDragEnd = function(x,y,thisElem)
{
thisElem.style["top"] = "0px";
thisElem.style["left"] = "0px";
}
} // end of for loop.
this.recalcOffsets( itemTagName );
} // end of setup.
// ----------------------------------------------
/**
* update the order value fields and submit the form.
*/
fv_dragList.prototype.do_submit = function( formName, dragListRootId )
{
var listOrderItems = this.listRoot.getElementsByTagName("input");
for (var i = 0; i < listOrderItems.length; i++)
{
listOrderItems[i].value = i;
}
expr = "document." + formName + ".submit()";
eval( expr );
}
// ----------------------------------------------
// "Private" methods.
// ----------------------------------------------
fv_dragList.prototype.recalcOffsets = function( itemTagName )
{
var listItems = this.getListItems( itemTagName );
for (var i = 0; i < listItems.length; i++)
{
this.offsetsX[i] = listItems[i].offsetLeft;
this.offsetsY[i] = listItems[i].offsetTop;
}
}
fv_dragList.prototype.getCurrentOffset = function(elem, itemTagName)
{
var listItems = this.getListItems( itemTagName );
for (var i = 0; i < listItems.length; i++)
{
if (listItems[i] == elem)
{
return i;
}
}
}
fv_dragList.prototype.getDivWidth = function(elem)
{
if (( elem == undefined) || ( elem.offsetWidth == undefined ))
return( 0 );
value = elem.offsetWidth;
if (isNaN(value))
{
value = 0;
}
return( value );
}
fv_dragList.prototype.getDivHeight = function(elem)
{
if (( elem == undefined) || ( elem.offsetHeight == undefined ))
return( 0 );
value = elem.offsetHeight;
if (isNaN(value))
{
value = 25;
}
return( value );
}
/**
* return list of draggable items
*/
fv_dragList.prototype.getListItems = function( itemTagName )
{
if ( itemTagName == undefined )
{
itemTagName = "div";
}
var listItems = this.listRoot.getElementsByTagName( itemTagName );
return( listItems );
}
// end of draglist class definition.
// -------------------------------------
/**
* add a new dragList to the list of draglists on this page
*
* This implementatoin supports multiple managed draglists on
* a single page. The index is contained in a global dragListIndex
* array that must be declared in the page.
*/
function addDragList( draglist )
{
dragListIndex[ draglist.dragListRootId ] = draglist;
}
// -------------------------------------------------------
/**
* given a draggable div element, return the draglist it belongs to
*
* @see fv_draglist.prototype.setup
* @todo this should probably be a method inside the draglist class.
*/
function getDragList( elem )
{
// given a list item return the drag list it belongs to.
var draglistContainer = elem.parentNode;
var draglist = dragListIndex[ draglistContainer.id ];
return( draglist );
}
// END
</script>
</head>
<body leftmargin="0" topmargin="0" bgcolor="#ffffff" marginheight="0" marginwidth="0">
<!-- top of main table -->
<table cellpadding="10" width="100%">
<tbody><tr>
<td colspan="2" align="center" width="100%">
<span class="header">draglist - Drag and Drop Ordered Lists in Javascript</span>
</td>
</tr>
<tr>
<td colspan="2" align="left" width="100%">
<div class="contentText">
This is a demonstration of the draglist Drag and Drop Ordered list implementation used
in the <a href="http://www.formVista.com">formVista</a> business component framework
by <a href="http://www.dtlink.com">DTLink Software</a>.
<br><br>
You can grab the (drag) text and reorder the items on the list. On pressing submit,
the new order of the items will be sent to the server and displayed.
<br><br>
draglists are enclosed in a wrapping <b><DIV></b> tag. Each item in the list
is contained in a draggable div or span. When submit is pressed the list of items is
queried and the position values are modified.
<br><br>
For more information see the <a href="http://www.formvista.com/otherprojects/draglist.html">Drag List home page.</a>
</div>
</td>
</tr>
<!--
// ========================== VERTICAL DRAGGING EXAMPLE ========================
-->
<tr>
<td align="center" valign="top">
<br>
<!-- Form Wrapper Table -->
<table border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<td>
<form name="draglist_form" action="index.php" method="post">
<input type="hidden" name="cmd" value="reorder">
<input type="hidden" name="list" value="vertical">
<!-- Tab Table -->
<table border="0" cellpadding="0" cellspacing="0">
<tbody><tr>
<!-- Tab Table, Left Corner Cell -->
<td width="10"><img src="graphics/flattabsimple_003.gif" alt="" border="0" height="19" width="10"></td>
<!-- Tab Table, Title Cell -->
<td background="graphics/flattabsimple.gif"><div class="flattabsimpleFormTitle">Vertical Dragging Example</div></td>
<!-- Tab Table, Right Corner Cell -->
<td width="10"><img src="graphics/flattabsimple_005.gif" alt="" border="0" height="19" width="13"></td>
</tr>
</tbody></table>
<!-- Tab Table, END -->
<!-- Border Color Table -->
<table class="flattabsimpleFormBorderColor" border="0" cellpadding="1" cellspacing="0">
<tbody><tr><td>
<!-- Background Color Table -->
<table class="flattabsimpleFormTable" border="0" cellpadding="0" cellspacing="0">
<tbody><tr><td><img src="graphics/spacer.gif" border="0" height="10" width="1"></td></tr>
<tr>
<td width="10"><img src="graphics/spacer.gif" border="0" height="1" width="10"></td>
<td valign="top">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">The items below are draggable.</td></tr><tr>
<td colspan="1">
<img src="graphics/spacer.gif" height="5" width="1">
</td>
</tr><tr><td colspan="1" align="left" valign="center" width=""></td></tr>
<tr>
<td colspan="3" align="left">
<!--
// -------------------------------------------------------
// Container Div that wraps the list. It contains divs that
// are draggable. see the assets/default.css stylesheet,
// the do_submit() method in assets/draglist.js and the
// submit button below.
-->
<div id="draglist_container">
<!-- php // first draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody>
<tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody>
<tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 1)</td></tr>
</tbody></table>
<?php
// If these items were coming from a database, we would use the offset in
// the draglist_items array to hold the unique key of the item. We make use
// of the fact that PHP arrays do not have sequential keys to do this.
//
// The value here is the items initial position. the draglist.do_submit() function
// updates these values onSubmit.
?>
<input name="draglist_items[1]" value="0" type="hidden">
</div>
<!-- // second draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 2)</td></tr>
</tbody></table>
<input name="draglist_items[2]" value="1" type="hidden">
</div>
<!-- php // third draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 3)</td></tr>
</tbody></table>
<input name="draglist_items[3]" value="2" type="hidden">
</div>
<!-- php // fourth draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 4)</td></tr>
</tbody></table>
<input name="draglist_items[4]" value="3" type="hidden">
</div>
<!-- php // fifth draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 5)</td></tr>
</tbody></table>
<input name="draglist_items[5]" value="4" type="hidden">
</div>
<!-- php // sixth draggable div -->
<div style="position: relative; left: 0px; top: 0px;">
<table cellpadding="5" cellspacing="0" width="100%">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<table cellpadding="5" cellspacing="0" width="">
<tbody><tr><td colspan="1" align="left" valign="center" width="">
<a target="_blank" href="http://www.java2s.com">
<img src="http://www.java2s.com/style/logo.png" border="0"></a></td>
<td colspan="1" align="left" valign="center" width=""></td></tr>
</tbody></table></td><td colspan="1" align="right" valign="center" width="">
(Drag 6)</td></tr>
</tbody></table>
<input name="draglist_items[6]" value="5" type="hidden">
</div>
<!-- // end of draglist_container div -->
</div>
</td>
</tr><tr>
<td colspan="1">
<img src="graphics/spacer.gif" height="5" width="1">
</td>
</tr><tr><td colspan="1" align="center" valign="center" width="">
<!--
// do_submit() queries the new order of the items in the list and
// updates
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