使用原生js实现简单的拖拽事件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>Title</title>
<style>
#drag-el {
100px;
height: 100px;
background-color: greenyellow;
}
#drop-el {
200px;
height: 200px;
background-color: antiquewhite;
}
</style>
</head>
<body>
<div id="drop-el"></div>
<div id="drag-el" draggable="true">
可拖拽元素
</div>
<script>
window.onload = function () {
var dropEl = $('#drop-el');
var dragEl = $('#drag-el');
//设置关联数据
dragEl.addEventListener("dragstart", dragstartHandle);
//禁止默认事件，使其可拖放
dropEl.addEventListener("dragenter", preventDefault);
dropEl.addEventListener("dragover", preventDefault);
//鼠标释放，在拖放目标上接受数据并处理
dropEl.addEventListener("drop", dropHandle);
function dropHandle(event) {
event.preventDefault();
var data = event.dataTransfer.getData("Text");
event.target.appendChild($("#" + data));
}
function dragstartHandle(event) {
event.dataTransfer.setData("Text", event.target.id);
}
function preventDefault(event) {
console.log(event.type);
event.preventDefault();
}
function $(sel) {
return document.querySelector(sel);
}
}
</script>
</body>
</html>