GlobalEventHandlers.ondragenter

A global event handler for the dragenter event.

Syntax

var dragenterHandler = targetElement.ondragenter;

Return value

dragenterHandler
The dragenter event handler for element targetElement.

Example

This example demonstrates using the ondragenter attribute handler to set an element's dragenter event handler.

<!DOCTYPE html>
<html lang=en>
<title>Examples of using the Drag and Drop Global Event Attribute</title>
<meta content="width=device-width">
<style>
  div {
    margin: 0em;
    padding: 2em;
  }
  #source {
    color: blue;
    border: 1px solid black;
  }
  #target {
    border: 1px solid black;
  }
</style>
</head>
<script>
function dragstart_handler(ev) {
 console.log("dragStart");
 // Change the source element's background color to signify drag has started
 ev.currentTarget.style.border = "dashed";
 ev.dataTransfer.setData("text", ev.target.id);
}

function dragover_handler(ev) {
 console.log("dragOver");
 // Change the target element's border to signify a drag over event
 // has occurred
 ev.currentTarget.style.background = "lightblue";
 ev.preventDefault();
}

function drop_handler(ev) {
 console.log("Drop");
 ev.preventDefault();
 var data = ev.dataTransfer.getData("text");
 ev.target.appendChild(document.getElementById(data));
}

function dragenter_handler(ev) {
 console.log("dragEnter");
 // Change the source element's background color for enter events
 ev.currentTarget.style.background = "yellow";
}

function dragleave_handler(ev) {
 console.log("dragLeave");
 // Change the source element's border back to white
 ev.currentTarget.style.background = "white";
}

function dragend_handler(ev) {
 console.log("dragEnd");
 // Change the target element's background color to visually indicate
 // the drag ended.
 var el=document.getElementById("target");
 el.style.background = "pink";
}

function dragexit_handler(ev) {
 console.log("dragExit");
 // Change the source element's border back to green to signify a dragexit event
 ev.currentTarget.style.background = "green";
}

function init() {
 // Set handlers for the source's enter/leave/end/exit events
 var el=document.getElementById("source");
 el.ondragenter = dragenter_handler;
 el.ondragleave = dragleave_handler;
 el.ondragend = dragend_handler;
 el.ondragexit = dragexit_handler;
}
</script>
<body onload="init();">
<h1>Examples of <code>ondragenter</code>, <code>ondragleave</code>, <code>ondragend</code>, <code>ondragexit</code></h1>
 <div>
   <p id="source" ondragstart="dragstart_handler(event);" draggable="true">
     Select this element, drag it to the Drop Zone and then release the selection to move the element.</p>
 </div>
 <div id="target" ondrop="drop_handler(event);" ondragover="dragover_handler(event);">Drop Zone</div>
</body>
</html>

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'ondragenter' in that specification.
Living Standard
HTML 5.1
The definition of 'ondragenter' in that specification.
Recommendation Initial definition

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
ondragenterChrome Full support 4Edge Full support 12Firefox Full support 3.5IE Full support 10Opera Full support 12Safari Full support 3.1WebView Android No support NoChrome Android No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support
Full support
No support
No support

See also