javascript 操作剪切板 ie firefox 兼容

javascript 操作剪切板 ie firefox 兼容

作者：李天华点击：读取中... 次

/**********************************************************
复制maintext到贴切板
***********************************************************/
function setClipboard(maintext)
{
  if (window.clipboardData)
   {
    return (window.clipboardData.setData("Text", maintext));
   }
  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");
      var str = new Object();
      var len = new Object();
      var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
      var copytext = maintext;
       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);
      return true;
       }
      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 false;
       }
     }
   }
  return false;
}
/**********************************************************
粘贴剪切板的内容
***********************************************************/
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;
           }
         }
       }
      if (str)
       {
        return (str.data.substring(0, len.value / 2));
       }
     }
   }
  return null;
}

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/ok7758521ok/archive/2009/03/04/3956942.aspx

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