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javascript常用复制方法copyToClipboard()

2017年10月11日 web前端 ⁄ 共 1482字 ⁄ 字号 评论关闭

//功能:将指定内容复制到剪切板

//来源:http://jorkin.reallydo.com/article.asp?id=457

 

function copyToClipboard(txt) {

     if(window.clipboardData) {

             window.clipboardData.clearData();

             window.clipboardData.setData("Text", txt);

     } else if(navigator.userAgent.indexOf("Opera") != -1) {

          window.location = txt;

     } else if (window.netscape) {

          try {

               netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

          } catch (e) {

               alert("被浏览器拒绝!/n请在浏览器地址栏输入'about:config'并回车/n然后将'signed.applets.codebase_principal_support'设置为'true'");

          }

          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 = txt;

          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);

          alert("复制成功!")

     }

}




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