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js利用clipboardData在网页中实现截屏粘贴的功能


<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>copyimg</title>

<style type="text/css">
#box{ width:200px; height:200px; border:1px solid #ddd; }
</style>

</head>

<script language="JavaScript">


</script>


<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>



来自 https://blog.csdn.net/hongwangzhang/article/details/50549577


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