支持ie与FireFox的剪切板操作代码
2024-05-06 14:13:48
供稿：网友
代码如下:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>支持ie与FireFox的剪切板代码</title>
<script type="text/javascript">
function setCopy(_sTxt){
try{
if(window.clipboardData){
window.clipboardData.setData("Text", _sTxt);
} else if(window.netscape) {//FireFox搞得真复杂呀
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');
var str = new Object();
var len = new Object();
var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
var copytext = _sTxt;
str.data = copytext;
trans.setTransferData("text/unicode", str, copytext.length*2);
var clipid = Components.interfaces.nsIClipboard;
if (!clip) return false;
clip.setData(trans, null, clipid.kGlobalClipboard);
}
}catch(e){}
}
</script>
</head>
<body>
<input type="button" onclick="setCopy('hello');" value="复制" />
<div>
Firefox/3.0.14下可以运行<br />
Firefox/3.5.3下无效<br />
不过多考虑这一块了。
</div>
</body>
</html>
下面是ie firefox 读取剪切板中的信息的方法
代码如下:
function getClipboard()
{
if (window.clipboardData)
{
return (window.clipboardData.getData('text'));
}
else
{
if (window.netscape)
{
try
{
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();
trans.getTransferData("text/unicode", str, len);
}
catch (e)
{
alert("您的firefox安全限制限制您进行剪贴板操作，请打开'about:config'将signed.applets.codebase_principal_support'设置为true'之后重试，相对路径为firefox根目录/greprefs/all.js");
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;
}
}
}
