GlobalEventHandlers.ondragover - Web APIs 编辑
A global event handler for the dragover event.
Syntax
var dragoverHandler = targetElement.ondragover;
Return value
dragoverHandler- The
dragoverevent handler for elementtargetElement.
Example
This example demonstrates using the ondragover attribute handler to set an element's dragover event handler.
<!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>
<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>
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'ondragover' in that specification. | Living Standard | |
| HTML 5.1 The definition of 'ondragover' in that specification. | Recommendation | Initial definition |
Browser compatibility
BCD tables only load in the browser
See also
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论