HTML event attribute ondragstart
The ondragstart attribute is triggered
when starting to drag an element or text selection.
To make an element draggable, mark that element
with the global HTML5 draggable attribute.
Links and images are draggable by default.
Events fired on the draggable source element:
- ondragstart - starting dragging
- ondrag - during the dragging
- ondragend - finish dragging
Events fired on the drop target:
- ondragenter - when the dragged element enters the droppable target
- ondragover - when the dragged element is over the droppable target
- ondragleave - when the dragged element leaves the droppable target
- ondrop - when the dragged element is dropped on the droppable target
What's new in HTML5
The ondragstart attribute is new in HTML5.
Syntax
<element ondragstart="script or Javascript function name">
Supported Tags
ALL HTML elements
Browser compatibility
 |
 |
 |
 |
 |
|
|---|---|---|---|---|---|
ondragstart |
Yes | 9.0 | Yes | Yes | Yes |
Example
<!DOCTYPE HTML>
<html>
<head>
<style>
#droptarget {<!--from ww w.ja v a 2 s.c o m-->
float: left;
width: 200px;
height: 35px;
margin: 55px;
margin-top: 155px;
padding: 10px;
border: 1px solid black;
}
</style>
</head>
<body>
<p ondragstart="dragStart(event)" draggable="true" id="dragtarget">Drag me into the rectangle!</p>
<div id="droptarget" ondrop="drop(event)" ondragover="allowDrop(event)"></div>
<script>
function dragStart(event) {
event.dataTransfer.setData("Text", event.target.id);
}
function allowDrop(event) {
event.preventDefault();
console.log("OVER.");
}
function drop(event) {
event.preventDefault();
var data = event.dataTransfer.getData("Text");
event.target.appendChild(document.getElementById(data));
console.log("dropped.");
}
</script>
</body>
</html>