The drag
event is fired every few hundred milliseconds as an element or text selection is being dragged by the user.
The drag
event is fired every few hundred milliseconds as an element or text selection is being dragged by the user.
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("drag", (event) => {}); ondrag = (event) => {};
In addition to the properties listed below, properties from the parent interface, Event
, are available.
DragEvent.dataTransfer
Read only
The data that is transferred during a drag and drop interaction.
html
<div class="dropzone"> <div id="draggable" draggable="true">This div is draggable</div> </div> <div class="dropzone" id="droptarget"></div>
css
body { /* Prevent the user selecting text in the example */ user-select: none; } #draggable { text-align: center; background: white; } .dropzone { width: 200px; height: 20px; background: blueviolet; margin: 10px; padding: 10px; } .dropzone.dragover { background-color: purple; } .dragging { opacity: 0.5; }
js
let dragged; /* events fired on the draggable target */ const source = document.getElementById("draggable"); source.addEventListener("drag", (event) => { console.log("dragging"); }); source.addEventListener("dragstart", (event) => { // store a ref. on the dragged elem dragged = event.target; // make it half transparent event.target.classList.add("dragging"); }); source.addEventListener("dragend", (event) => { // reset the transparency event.target.classList.remove("dragging"); }); /* events fired on the drop targets */ const target = document.getElementById("droptarget"); target.addEventListener( "dragover", (event) => { // prevent default to allow drop event.preventDefault(); }, false, ); target.addEventListener("dragenter", (event) => { // highlight potential drop target when the draggable element enters it if (event.target.classList.contains("dropzone")) { event.target.classList.add("dragover"); } }); target.addEventListener("dragleave", (event) => { // reset background of potential drop target when the draggable element leaves it if (event.target.classList.contains("dropzone")) { event.target.classList.remove("dragover"); } }); target.addEventListener("drop", (event) => { // prevent default action (open as link for some elements) event.preventDefault(); // move dragged element to the selected drop target if (event.target.classList.contains("dropzone")) { event.target.classList.remove("dragover"); event.target.appendChild(dragged); } });
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 |
1 | 12 | 9 | 9 | 12 | 3.1 | 4.4 | 18 | 9 | 12 | 2 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/drag_event