on drop, drag, dragover event
<!DOCTYPE html>
<html lang=en>
<title>Examples of using the ondrag 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 drag_handler(ev) {
console.log("Drag");
}
function dragstart_handler(ev) {
console.log("dragStart");
ev.dataTransfer.setData("text", ev.target.id);
}
function drop_handler(ev) {
console.log("Drop");
ev.currentTarget.style.background = "lightyellow";
ev.preventDefault();
var data = ev.dataTransfer.getData("text");
ev.target.appendChild(document.getElementById(data));
}
function dragover_handler(ev) {
console.log("dragOver");
ev.preventDefault();
}
</script>
<body>
<h1>Examples of <code>ondrag</code>, <code>ondrop</code>, <code>ondragstart</code>, <code>ondragover</code></h1>
<div class="source">
<p id="source" ondrag="drag_handler(event);" 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>
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