<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>利用 clipboardData 在网页中实现截屏粘贴的功能</title>
<style type="text/css">
#box {
width: 200px;
height: 200px;
border: 1px solid #ddd;
}
</style>
</head>
<body>
<h1>利用 clipboardData 在网页中实现截屏粘贴的功能</h1>
<hr />
<div><input type="text" id="testInput" placeholder="截屏后粘贴到输入框中" size="30" /></div>
<script type="text/javascript">
(function () {
var imgReader = function (item) {
var blob = item.getAsFile(),
reader = new FileReader();
reader.onload = function (e) {
var img = new Image();
img.src = e.target.result;
document.body.appendChild(img);
};
reader.readAsDataURL(blob);
};
document.getElementById('testInput').addEventListener('paste', function (e) {
var clipboardData = e.clipboardData,
i = 0,
items, item, types;
if (clipboardData) {
items = clipboardData.items;
if (!items) {
return;
}
item = items[0];
types = clipboardData.types || [];
for (; i < types.length; i++) {
if (types[i] === 'Files') {
item = items[i];
break;
}
}
if (item && item.kind === 'file' && item.type.match(/^image\//i)) {
imgReader(item);
}
}
});
})();
</script>
</body>
</html>
