oil-station/fuintAdmin/src/api/LodopFuncs.js

//==本JS是加载Lodop插件或Web打印服务CLodop/Lodop7的综合示例，可直接使用，建议理解后融入自己程序==
// http://www.c-lodop.com/LodopDemo.html 地址
//用双端口加载主JS文件Lodop.js(或CLodopfuncs.js兼容老版本)以防其中某端口被占:
var MainJS = "CLodopfuncs.js",
  URL_WS1 = "ws://localhost:8000/" + MainJS,                //ws用8000/18000
  URL_WS2 = "ws://localhost:18000/" + MainJS,
  URL_HTTP1 = "http://localhost:8000/" + MainJS,              //http用8000/18000
  URL_HTTP2 = "http://localhost:18000/" + MainJS,
  URL_HTTP3 = "https://localhost.lodop.net:8443/" + MainJS;   //https用8000/8443

var CreatedOKLodopObject, CLodopIsLocal, LoadJsState;

//==判断是否需要CLodop(那些不支持插件的浏览器):==
function needCLodop() {
  try {
    var ua = navigator.userAgent;
    if (ua.match(/Windows\sPhone/i) ||
      ua.match(/iPhone|iPod|iPad/i) ||
      ua.match(/Android/i) ||
      ua.match(/Edge\D?\d+/i))
      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) && (!verIE) && (x64)) return true;
    else if (verFF) {
      verFF = verFF[0].match(/\d+/);
      if ((verFF[0] >= 41) || (x64)) return true;
    } else if (verOPR) {
      verOPR = verOPR[0].match(/\d+/);
      if (verOPR[0] >= 32) return true;
    } else if ((!verTrident) && (!verIE)) {
      var verChrome = ua.match(/Chrome\D?\d+/i);
      if (verChrome) {
        verChrome = verChrome[0].match(/\d+/);
        if (verChrome[0] >= 41) return true;
      }
    }
    return false;
  } catch (err) {
    return true;
  }
}

//==检查加载成功与否，如没成功则用http(s)再试==
//==低版本CLODOP6.561/Lodop7.043及前)用本方法==
function checkOrTryHttp() {
  if (window.getCLodop) {
    LoadJsState = "complete";
    return true;
  }
  if (LoadJsState == "loadingB" || LoadJsState == "complete") return;
  LoadJsState = "loadingB";
  var head = document.head || document.getElementsByTagName("head")[0] || document.documentElement;
  var JS1 = document.createElement("script")
    , JS2 = document.createElement("script")
    , JS3 = document.createElement("script");
  JS1.src = URL_HTTP1;
  JS2.src = URL_HTTP2;
  JS3.src = URL_HTTP3;
  JS1.onload = JS2.onload = JS3.onload = JS2.onerror = JS3.onerror = function () { LoadJsState = "complete"; }
  JS1.onerror = function (e) {
    if (window.location.protocol !== 'https:')
      head.insertBefore(JS2, head.firstChild); else
      head.insertBefore(JS3, head.firstChild);
  }
  head.insertBefore(JS1, head.firstChild);
}

//==加载Lodop对象的主过程:==
(function loadCLodop() {
  if (!needCLodop()) return;
  CLodopIsLocal = !!((URL_WS1 + URL_WS2).match(/\/\/localho|\/\/127.0.0./i));
  LoadJsState = "loadingA";
  if (!window.WebSocket && window.MozWebSocket) window.WebSocket = window.MozWebSocket;
  //ws方式速度快(小于200ms)且可避免CORS错误,但要求Lodop版本足够新:
  try {
    var WSK1 = new WebSocket(URL_WS1);
    WSK1.onopen = function (e) { setTimeout("checkOrTryHttp();", 200); }
    WSK1.onmessage = function (e) { if (!window.getCLodop) eval(e.data); }
    WSK1.onerror = function (e) {
      var WSK2 = new WebSocket(URL_WS2);
      WSK2.onopen = function (e) { setTimeout("checkOrTryHttp();", 200); }
      WSK2.onmessage = function (e) { if (!window.getCLodop) eval(e.data); }
      WSK2.onerror = function (e) { checkOrTryHttp(); }
    }
  } catch (e) {
    checkOrTryHttp();
  }
})();

//==获取LODOP对象主过程,判断是否安装、需否升级:==
function getLodop(oOBJECT, oEMBED) {
  var strFontTag = "<br><font color='#FF00FF'>打印控件";
  var strLodopInstall = strFontTag + "未安装!点击这里<a href='install_lodop32.exe' target='_self'>执行安装</a>";
  var strLodopUpdate = strFontTag + "需要升级!点击这里<a href='install_lodop32.exe' target='_self'>执行升级</a>";
  var strLodop64Install = strFontTag + "未安装!点击这里<a href='install_lodop64.exe' target='_self'>执行安装</a>";
  var strLodop64Update = strFontTag + "需要升级!点击这里<a href='install_lodop64.exe' target='_self'>执行升级</a>";
  var strCLodopInstallA = "<br><font color='#FF00FF'>Web打印服务CLodop未安装启动，点击这里<a href='CLodop_Setup_for_Win32NT.exe' target='_self'>下载执行安装</a>";
  var strCLodopInstallB = "<br>（若此前已安装过，可<a href='CLodop.protocol:setup' target='_self'>点这里直接再次启动</a>）";
  var strCLodopUpdate = "<br><font color='#FF00FF'>Web打印服务CLodop需升级!点击这里<a href='CLodop_Setup_for_Win32NT.exe' target='_self'>执行升级</a>";
  var strLodop7FontTag = "<br><font color='#FF00FF'>Web打印服务Lodop7";
  var strLodop7HrefX86 = "点击这里<a href='Lodop7_Linux_X86_64.tar.gz' target='_self'>下载安装</a>(下载后解压，点击lodop文件开始执行)";
  var strLodop7HrefARM = "点击这里<a href='Lodop7_Linux_ARM64.tar.gz'  target='_self'>下载安装</a>(下载后解压，点击lodop文件开始执行)";
  var strLodop7Install_X86 = strLodop7FontTag + "未安装启动，" + strLodop7HrefX86;
  var strLodop7Install_ARM = strLodop7FontTag + "未安装启动，" + strLodop7HrefARM;
  var strLodop7Update_X86 = strLodop7FontTag + "需升级，" + strLodop7HrefX86;
  var strLodop7Update_ARM = strLodop7FontTag + "需升级，" + strLodop7HrefARM;
  var strInstallOK = "，成功后请刷新本页面或重启浏览器。</font>";
  var LODOP;
  try {
    var isWinIE = (/MSIE/i.test(navigator.userAgent)) || (/Trident/i.test(navigator.userAgent));
    var isWinIE64 = isWinIE && (/x64/i.test(navigator.userAgent));
    var isLinuxX86 = (/Linux/i.test(navigator.platform)) && (/x86/i.test(navigator.platform));
    var isLinuxARM = (/Linux/i.test(navigator.platform)) && (/aarch/i.test(navigator.platform));

    if (needCLodop() || isLinuxX86 || isLinuxARM) {
      try {
        LODOP = window.getCLodop();
      } catch (err) { }
      if (!LODOP && LoadJsState !== "complete") {
        if (!LoadJsState)
          alert("未曾加载Lodop主JS文件，请先调用loadCLodop过程."); else
          alert("网页还没下载完毕，请稍等一下再操作.");
        return;
      }
      var strAlertMessage;
      if (!LODOP) {
        if (isLinuxX86)
          strAlertMessage = strLodop7Install_X86;
        else if (isLinuxARM)
          strAlertMessage = strLodop7Install_ARM;
        else
          strAlertMessage = strCLodopInstallA + (CLodopIsLocal ? strCLodopInstallB : "");
        document.body.innerHTML = strAlertMessage + strInstallOK + document.body.innerHTML;
        return;
      } else {
        if (isLinuxX86 && LODOP.CVERSION < "7.0.4.3")
          strAlertMessage = strLodop7Update_X86;
        else if (isLinuxARM && LODOP.CVERSION < "7.0.4.3")
          strAlertMessage = strLodop7Update_ARM;
        else if (CLODOP.CVERSION < "6.5.7.1")
          strAlertMessage = strCLodopUpdate;

        if (strAlertMessage)
          document.body.innerHTML = strAlertMessage + strInstallOK + document.body.innerHTML;
      }
      // LODOP.SET_LICENSES("", "EE0887D00FCC7D29375A695F728489A6", "C94CEE276DB2187AE6B65D56B3FC2848", "");
    } else {
      //==如果页面有Lodop插件就直接使用,否则新建:==
      if (oOBJECT || oEMBED) {
        if (isWinIE)
          LODOP = oOBJECT;
        else
          LODOP = oEMBED;
      } else if (!CreatedOKLodopObject) {
        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 (isWinIE)
          LODOP.setAttribute("classid", "clsid:2105C259-1E0C-4534-8141-A753534CB4CA");
        else
          LODOP.setAttribute("type", "application/x-print-lodop");
        document.documentElement.appendChild(LODOP);
        CreatedOKLodopObject = LODOP;
      } else
        LODOP = CreatedOKLodopObject;
      //==Lodop插件未安装时提示下载地址:==
      if ((!LODOP) || (!LODOP.VERSION)) {
        document.body.innerHTML = (isWinIE64 ? strLodop64Install : strLodopInstall) + strInstallOK + document.body.innerHTML;
        return LODOP;
      }
      if (LODOP.VERSION < "6.2.2.6") {
        document.body.innerHTML = (isWinIE64 ? strLodop64Update : strLodopUpdate) + strInstallOK + document.body.innerHTML;
      }
    }
    //===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("", "EE0887D00FCC7D29375A695F728489A6", "C94CEE276DB2187AE6B65D56B3FC2848", "");
    //===============================================================================
    return LODOP;
  } catch (err) {
    alert("getLodop出错:" + err);
  }
}
export { getLodop };