var CreatedOKLodop7766 = null;

//====判断是否需要安装CLodop云打印服务器:====
function needCLodop() {
  try {
    var ua = navigator.userAgent;
    if (ua.match(/Windows\sPhone/i) != null) return true;
    if (ua.match(/iPhone|iPod/i) != null) return true;
    if (ua.match(/Android/i) != null) return true;
    if (ua.match(/Edge\D?\d+/i) != null) return true;

    var verTrident = ua.match(/Trident\D?\d+/i);
    var verIE = ua.match(/MSIE\D?\d+/i);
    var verOPR = ua.match(/OPR\D?\d+/i);
    var verFF = ua.match(/Firefox\D?\d+/i);
    var x64 = ua.match(/x64/i);
    if ((verTrident == null) && (verIE == null) && (x64 !== null))
      return true;
    else
    if (verFF !== null) {
      verFF = verFF[0].match(/\d+/);
      if ((verFF[0] >= 42) || (x64 !== null)) return true;
    } else
    if (verOPR !== null) {
      verOPR = verOPR[0].match(/\d+/);
      if (verOPR[0] >= 32) return true;
    } else
    if ((verTrident == null) && (verIE == null)) {
      var verChrome = ua.match(/Chrome\D?\d+/i);
      if (verChrome !== null) {
        verChrome = verChrome[0].match(/\d+/);
        if (verChrome[0] >= 42) return true;
      }
    }
    return false;
  } catch (err) {
    return true;
  }
}

//====页面引用CLodop云打印必须的JS文件：====
if (needCLodop()) {
  var head = document.head || document.getElementsByTagName("head")[0] || document.documentElement;
  var oscript = document.createElement("script");
  oscript.src = "http://localhost:18000/CLodopfuncs.js?priority=1";
  head.insertBefore(oscript, head.firstChild);

  //引用双端口(8000和18000）避免其中某个被占用：
  oscript = document.createElement("script");
  oscript.src = "http://localhost:8099/CLodopfuncs.js?priority=0";
  head.insertBefore(oscript, head.firstChild);
}

//====获取LODOP对象的主过程：====
function getLodop(oOBJECT, oEMBED) {
  var strHtmInstall = "打印控件未安装!";
  var strHtmUpdate = "打印控件需要升级!";
  var strHtm64_Install = "打印控件未安装!";
  var strHtm64_Update = "打印控件需要升级!";
  var strHtmFireFox = "注意：如曾安装过Lodop旧版附件npActiveXPLugin,请先卸它";
  var strHtmChrome = "如果此前正常，仅因浏览器升级或重安装而出问题，需重新执行以上安装";
  var strCLodopInstall = "CLodop云打印服务(localhost本地)未安装启动!";
  var strCLodopUpdate = "CLodop云打印服务需升级!";
  var LODOP;
  try {
    var isIE = (navigator.userAgent.indexOf('MSIE') >= 0) || (navigator.userAgent.indexOf('Trident') >= 0);
    if (needCLodop()) {
      try {
        LODOP = getCLodop();
      } catch (err) {}
      if (!LODOP && document.readyState !== "complete") {
        alert("C-Lodop没准备好，请稍后再试！");
        return;
      }
      if (!LODOP) {
        if (isIE)
          alert(strCLodopInstall);
        else
          alert(strCLodopInstall);
        return;
      } else {
        if (CLODOP.CVERSION < "2.1.0.2") {
          if (isIE)
            alert(strCLodopUpdate);
          else
            alert(strCLodopUpdate);
        }
        if (oEMBED && oEMBED.parentNode)
          oEMBED.parentNode.removeChild(oEMBED);
        if (oOBJECT && oOBJECT.parentNode)
          oOBJECT.parentNode.removeChild(oOBJECT);
      }
    } else {
      var is64IE = isIE && (navigator.userAgent.indexOf('x64') >= 0);
      //=====如果页面有Lodop就直接使用，没有则新建:==========
      if (oOBJECT != undefined || oEMBED != undefined) {
        if (isIE) LODOP = oOBJECT;
        else LODOP = oEMBED;
      } else if (CreatedOKLodop7766 == null) {
        LODOP = document.createElement("object");
        LODOP.setAttribute("width", 0);
        LODOP.setAttribute("height", 0);
        LODOP.setAttribute("style", "position:absolute;left:0px;top:-100px;width:0px;height:0px;");
        if (isIE) LODOP.setAttribute("classid", "clsid:2105C259-1E0C-4534-8141-A753534CB4CA");
        else LODOP.setAttribute("type", "application/x-print-lodop");
        document.documentElement.appendChild(LODOP);
        CreatedOKLodop7766 = LODOP;
      } else LODOP = CreatedOKLodop7766;
      //=====Lodop插件未安装时提示下载地址:==========
      if ((LODOP == null) || (typeof(LODOP.VERSION) == "undefined")) {
        if (navigator.userAgent.indexOf('Chrome') >= 0)
          alert(strHtmChrome);
        if (navigator.userAgent.indexOf('Firefox') >= 0)
          alert(strHtmFireFox);
        if (is64IE)
          alert(strHtm64_Install);
        else if (isIE)
          alert(strHtmInstall);
        else
          alert(strHtmInstall);
        return LODOP;
      }
    }
    if (LODOP.VERSION < "6.2.1.7") {
      if (needCLodop())
        alert(strCLodopUpdate);
      else if (is64IE)
        alert(strHtm64_Update);
      else if (isIE)
        alert(strHtmUpdate);
      else
        alert(strHtmUpdate);
      return LODOP;
    }
    //===如下空白位置适合调用统一功能(如注册语句、语言选择等):===
    LODOP.SET_LICENSES("烟台海格尔网络信息技术有限公司", "760596264827588907989969682941", "", "");
    //===========================================================
    return LODOP;
  } catch (err) {
    alert("getLodop出错:" + err);
  }
}