js获取剪贴板内容
js获取剪贴板内容
<html>
<head>
<title>读取剪贴板内容</title>
<script type="text/javascript">
function getClipboard() {
if (window.clipboardData) {
return (window.clipboardData.getData('Text'));
}
else if (window.netscape) {
netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
if (!clip) return;
var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
if (!trans) return;
trans.addDataFlavor('text/unicode');
clip.getData(trans, clip.kGlobalClipboard);
var str = new Object();
var len = new Object();
try {
trans.getTransferData('text/unicode', str, len);
}
catch (error) {
return null;
}
if (str) {
if (Components.interfaces.nsISupportsWString) str = str.value.QueryInterface(Components.interfaces.nsISupportsWString);
else if (Components.interfaces.nsISupportsString) str = str.value.QueryInterface(Components.interfaces.nsISupportsString);
else str = null;
}
if (str) {
return (str.data.substring(0, len.value / 2));
}
}
return null;
}
function readClipboardData() {
var str = getClipboard();
var len = str.split("\n");//获取行数
document.getElementById("txtContent").value = str;
}
</script>
</head>
<body>
<input type="button" value="读取剪贴板内容" onclick="readClipboardData();" />
<br />
<textarea rows="20" cols="60" id="txtContent"></textarea>
</body>
</html>
