The drag
event is fired every few hundred milliseconds as an element or text selection is being dragged by the user.
Document: drag event
Examples
See this code in a JSFiddle demo or interact with it below.
HTML
<div class="dropzone"> <div id="draggable" draggable="true" ondragstart="event.dataTransfer.setData('text/plain',null)"> This div is draggable </div> </div> <div class="dropzone"></div> <div class="dropzone"></div> <div class="dropzone"></div>
CSS
body { /* Prevent the user selecting text in the example */ user-select: none; } #draggable { width: 200px; height: 20px; text-align: center; background: white; } .dropzone { width: 200px; height: 20px; background: blueviolet; margin-bottom: 10px; padding: 10px; }
JavaScript
var dragged; /* events fired on the draggable target */ document.addEventListener("drag", function(event) { }, false); document.addEventListener("dragstart", function(event) { // store a ref. on the dragged elem dragged = event.target; // make it half transparent event.target.style.opacity = .5; }, false); document.addEventListener("dragend", function(event) { // reset the transparency event.target.style.opacity = ""; }, false); /* events fired on the drop targets */ document.addEventListener("dragover", function(event) { // prevent default to allow drop event.preventDefault(); }, false); document.addEventListener("dragenter", function(event) { // highlight potential drop target when the draggable element enters it if (event.target.className == "dropzone") { event.target.style.background = "purple"; } }, false); document.addEventListener("dragleave", function(event) { // reset background of potential drop target when the draggable element leaves it if (event.target.className == "dropzone") { event.target.style.background = ""; } }, false); document.addEventListener("drop", function(event) { // prevent default action (open as link for some elements) event.preventDefault(); // move dragged elem to the selected drop target if (event.target.className == "dropzone") { event.target.style.background = ""; dragged.parentNode.removeChild( dragged ); event.target.appendChild( dragged ); } }, false);
Specifications
Specification |
---|
HTML Standard # event-dnd-drag |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
drag_event |
4
|
12
|
3.5
Firefox doesn't set the mouse coordinates during the drag event. See
bug 505521.
|
10
|
12
|
3.1
|
No
|
No
|
No
|
No
|
11
|
No
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Document/drag_event