By Eric Bidelman
http://www.html5rocks.com/en/tutorials/dnd/basics/
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Native HTML5 Drag and Drop</title>
<style>
[draggable] {
-moz-user-select: none;
-khtml-user-select: none;
-webkit-user-select: none;
user-select: none;
/* Required to make elements draggable in old WebKit */
-khtml-user-drag: element;
-webkit-user-drag: element;
}
.column {
height: 70px;
width: 170px;
float: left;
border: 2px solid #666666;
background-color: #ccc;
margin-right: 5px;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
-o-border-radius: 10px;
-ms-border-radius: 10px;
border-radius: 10px;
-webkit-box-shadow: inset 0 0 3px #000;
-moz-box-shadow: inset 0 0 3px #000;
-ms-box-shadow: inset 0 0 3px #000;
-o-box-shadow: inset 0 0 3px #000;
box-shadow: inset 0 0 3px #000;
text-align: center;
cursor: move;
}
.column header {
color: #fff;
text-shadow: #000 0 1px;
box-shadow: 5px;
padding: 5px;
background: -moz-linear-gradient(left center, rgb(0,0,0), rgb(79,79,79), rgb(21,21,21));
background: -webkit-gradient(linear, left top, right top, color-stop(0, rgb(0,0,0)), color-stop(0.50, rgb(79,79,79)), color-stop(1, rgb(21,21,21)));
background: -webkit-linear-gradient(left center, rgb(0,0,0), rgb(79,79,79), rgb(21,21,21));
background: -ms-linear-gradient(left center, rgb(0,0,0), rgb(79,79,79), rgb(21,21,21));
background: -o-linear-gradient(left center, rgb(0,0,0), rgb(79,79,79), rgb(21,21,21));
border-bottom: 1px solid #ddd;
-webkit-border-top-left-radius: 10px;
-moz-border-radius-topleft: 10px;
-ms-border-radius-topleft: 10px;
-o-border-radius-topleft: 10px;
border-top-left-radius: 10px;
-webkit-border-top-right-radius: 10px;
-moz-border-radius-topright: 10px;
-ms-border-radius-topright: 10px;
-o-border-radius-topright: 10px;
border-top-right-radius: 10px;
}
.column.over {
border: 2px dashed #000;
}
</style>
</head>
<body>
<div>
<div id="columns">
<div class="column">
<header>A</header>
</div>
<div class="column">
<header>B</header>
</div>
<div class="column">
<header>C</header>
</div>
</div>
<script>
// Using this polyfill for safety.
Element.prototype.hasClassName = function (name) {
return new RegExp("(?:^|\\s+)" + name + "(?:\\s+|$)").test(this.className);
};
Element.prototype.addClassName = function (name) {
if (!this.hasClassName(name)) {
this.className = this.className ? [this.className, name].join(' ') : name;
}
};
Element.prototype.removeClassName = function (name) {
if (this.hasClassName(name)) {
var c = this.className;
this.className = c.replace(new RegExp("(?:^|\\s+)" + name + "(?:\\s+|$)", "g"), "");
}
};
(function () {
var id_ = 'columns';
var cols_ = document.querySelectorAll('#' + id_ + ' .column');
var dragSrcEl_ = null;
this.handleDragStart = function (e) {
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/html', this.innerHTML);
dragSrcEl_ = this;
this.style.opacity = '0.4';
// this/e.target is the source node.
this.addClassName('moving');
};
this.handleDragOver = function (e) {
if (e.preventDefault) {
e.preventDefault(); // Allows us to drop.
}
e.dataTransfer.dropEffect = 'move';
return false;
};
this.handleDragEnter = function (e) {
this.addClassName('over');
};
this.handleDragLeave = function (e) {
// this/e.target is previous target element.
this.removeClassName('over');
};
this.handleDrop = function (e) {
// this/e.target is current target element.
if (e.stopPropagation) {
e.stopPropagation(); // stops the browser from redirecting.
}
// Don't do anything if we're dropping on the same column we're dragging.
if (dragSrcEl_ != this) {
dragSrcEl_.innerHTML = this.innerHTML;
this.innerHTML = e.dataTransfer.getData('text/html');
}
return false;
};
this.handleDragEnd = function (e) {
// this/e.target is the source node.
this.style.opacity = '1';
[].forEach.call(cols_, function (col) {
col.removeClassName('over');
col.removeClassName('moving');
});
};
[].forEach.call(cols_, function (col) {
col.setAttribute('draggable', 'true'); // Enable columns to be draggable.
col.addEventListener('dragstart', this.handleDragStart, false);
col.addEventListener('dragenter', this.handleDragEnter, false);
col.addEventListener('dragover', this.handleDragOver, false);
col.addEventListener('dragleave', this.handleDragLeave, false);
col.addEventListener('drop', this.handleDrop, false);
col.addEventListener('dragend', this.handleDragEnd, false);
});
})();
</script>
</div>
</body>
</html>
http://www.html5rocks.com/en/tutorials/dnd/basics/
