Drag and drop: force to scroll
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<!-- revised from scriptaculous-js-1.8.2 demo code -->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title></title>
<script src="scriptaculous-js-1.8.2/lib/prototype.js" type="text/javascript"></script>
<script src="scriptaculous-js-1.8.2/src/scriptaculous.js" type="text/javascript"></script>
<script type="text/javascript">
Position.includeScrollOffsets = true;
Draggables.clear = function (event) {
while (Draggables.drags.length) {
var d = Draggables.drags.pop();
var e = d.element;
d.stopScrolling();
d.destroy();
d.element = null;
if (e.parentNode) {e.parentNode.removeChild(e)};
}
}
function cleanup() { //try to remove circular references
lis = document.getElementsByTagName("li");
for (i = 0; i < lis.length; i++) {
if (lis[i].longListItem) {lis[i].longListItem.destroy();}
else if (lis[i].container) {lis[i].container.destroy();}
}
Draggables.clear();
}
window.onload = function() {
var li = $("masterList").getElementsByTagName('LI');
for (var i = 0; i < li.length; i++) {
//var d = new LongListItem(li[i]);
//li[i].onmousedown = d.onMouseDown.bindAsEventListener(d);
var d = new Draggable(li[i],
{revert: true,
ghosting: false,
scroll: "rightContainers"
});
}
var divs = $("rightContainers").getElementsByTagName("div");
for (i = 0; i < divs.length; i++) {
if (divs[i].className && Element.hasClassName(divs[i], "container")) {
Droppables.add(divs[i].id, {hoverclass: "hover", scrollingParent: "rightContainers"});
}
}
Event.observe(window, 'unload', cleanup, false);
}
</script>
<style type="text/css">
html, body {
margin:0; padding: 0;
height: 100% !important;
}
body {
position:relative;
color: black;
background-color: white;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: small;
}
h1 {font-size:115%;}
h2 {font-size: 110%;}
h3 {font-size: 105%;}
div, p, li, td {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: small;
}
p {margin: 0 0 .7em 0; padding:0;}
ul {
position:relative;
list-style: none;
margin:0; padding:0;
overflow: visible;
}
li {position:relative;}
.instructions {font-style:italic;}
#leftDiv {
position: absolute;
top: 0; left: 0; bottom: 0;
width: 30%;
margin: 0; padding: 7px;
border-right: 2px solid #bb9;
background-color: #eed;
}
#leftDiv li, #rightContainers div.container li {
margin: 3px 0; padding: 3px 3em 3px 10px;
border: 2px solid #456;
background-color: #cde;
cursor: move;
}
#rightContainers {
padding: .5em;
position: absolute;
top: 0; bottom: 0; right: 0; left: 35%;
overflow:auto;
}
#rightContainers div.container{
background-color: #bb9;
margin: 0 0 40px 0; padding: 0 0 1px 0;
border: 2px solid #775;
}
#rightContainers div.container h2{
margin:0; padding: 2px 1em 0 1em;
text-align:center;
}
#rightContainers div.container ul {
margin: 5px; padding: 0 3px;
background-color: white;
border: 1px solid black;
}
#rightContainers div.container ul.empty {
padding: 3px 0;
}
#rightContainers div.hover {
background-color: #eed;
}
</style>
<!--[if IE]><style type="text/css">
#leftDiv {
height: expression((document.body.clientHeight - 44) + "px");
}
#leftDiv ul{width:93%;}
#leftDiv li div.count {
right:4px;
top:4px;
}
#rightContainers li a.remove {
display:block;
float:none;
position:absolute;
top: 4px;
right: 1.6em;
margin:0; padding:0 .2em;
}
</style><![endif]-->
</head>
<body>
<div id="leftDiv" class="">
<form id="frmContinue" action="#" method="post">
<p class="instructions">Shrink your window until the right-hand pane is scrollable.</p>
<p class="instructions">Drag from the list on left to groups on the right, force the right-hand pane to scroll.</p>
<input name="data" type="hidden" value=" ">
</form>
<ul id="masterList">
<li id="drag1">One</li>
<li id="drag2">Two</li>
<li id="drag3">Three</li>
<li id="drag4">Four</li>
<li id="drag5">Five</li>
<li id="drag6">Six</li>
<li id="drag7">Seven</li>
<li id="drag8">Eight</li>
</ul>
</div>
<div id="rightContainers" class="">
</form>
<div id="grp1" class="container">
<h2><span id="grp1_name">Group 1</span></h2>
<ul id="grp1ul" class="empty"></ul>
</div>
<div id="grp2" class="container">
<h2><span id="grp2_name">Group 2</span></h2>
<ul id="grp2ul" class="empty"></ul>
</div>
<div id="grp3" class="container">
<h2><span id="grp3_name">Group 3</span></h2>
<ul id="grp3ul" class="empty"></ul>
</div>
<div id="grp4" class="container">
<h2><span id="grp4_name">Group 4</span></h2>
<ul id="grp4ul" class="empty"></ul>
</div>
<div id="grp5" class="container">
<h2><span id="grp5_name">Group 5</span></h2>
<ul id="grp5ul" class="empty"></ul>
</div>
<div id="grp6" class="container">
<h2><span id="grp6_name">Group 6</span></h2>
<ul id="grp6ul" class="empty"></ul>
</div>
<div id="grp7" class="container">
<h2><span id="grp7_name">Group 7</span></h2>
<ul id="grp7ul" class="empty"></ul>
</div>
<div id="grp8" class="container">
<h2><span id="grp8_name">Group 8</span></h2>
<ul id="grp8ul" class="empty"></ul>
</div>
<div id="grp9" class="container">
<h2><span id="grp9_name">Group 9</span></h2>
<ul id="grp9ul" class="empty"></ul>
</div>
</div>
</body>
</html>
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