function getThemeJson(param) {
  var xhr = null;
  var url = "../css/theme/config.json?" + new Date();
  if (param.url) {
    url = param.url;
  }
  try {
    xhr = new XMLHttpRequest();
  } catch (error) {
    console.error(error);
    if (typeof param.error == "function") {
      param.error(error);
    }
    return false;
  }
  var fn = function() {
    var step = xhr.readyState;
    var status = xhr.status;
    if (step == 4) {
      var data = xhr.responseText;
      if (status == 200) {
        if (typeof param.success == "function") {
          param.success(data);
        }
      } else {
        if (typeof param.error == "function") {
          param.error();
        }
      }
      if (typeof param.completed == "function") {
        param.completed(data);
      }
    }
  };
  xhr.onreadystatechange = fn;
  var s = param.async;
  s === undefined && (s = true);
  xhr.open("get", url, s);
  xhr.send();
}
function setTheme(hreflist, datepickerFlag, ztreeFlag) {
  var fnspace = (function() {
    return {
      init: function(theme, hreflist, datepickerFlag, ztreeFlag) {
        //   加载时间插件主题样式
        if (datepickerFlag) {
        }
        //   加载树插件主题样式
        if (ztreeFlag) {
        }
        //加载页面主题样式文件
        if (hreflist && hreflist.length > 0) {
          for (var i = 0; i < hreflist.length; i++) {
            this.addCSSFile(hreflist[i].replace("${theme}", theme));
          }
        }
      },
      addCSSFile: function(href) {
        //引入css样式表
        var link = {};
        link.type = "text/css";
        link.rel = "stylesheet";
        link.href = href;
        this.createLink(link);
      },
      createLink: function(obj) {
        var link = document.createElement("link");
        for (var key in obj) {
          link[key] = obj[key];
        }
        document.getElementsByTagName("head")[0].appendChild(link);
      }
    };
  })();
  getThemeJson({
    success: function(data) {
      var d = JSON.parse(data);
      var urlParam = decodeURIComponent(location.search);
      var _temp = "";
      if (urlParam.indexOf("theme") !== -1) {
        var arr = urlParam.substr(urlParam.indexOf("theme")).split(/[\=\&]/g);
        _temp = arr[1];
        localStorage.setItem("theme", _temp);
      } else {
        _temp = d.theme;
      }
      var theme = _temp || localStorage.getItem("configTheme") || "light";
      fnspace.init(theme, hreflist, datepickerFlag, ztreeFlag);
    },
    error: function() {
      console.error("获取主题失败");
    }
  });
}