silverstripe-framework/admin/client/dist/js/LeftAndMain.Ping.js

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define('ss.LeftAndMain.Ping', ['jQuery'], factory);
  } else if (typeof exports !== "undefined") {
    factory(require('jQuery'));
  } else {
    var mod = {
      exports: {}
    };
    factory(global.jQuery);
    global.ssLeftAndMainPing = mod.exports;
  }
})(this, function (_jQuery) {
  'use strict';

  var _jQuery2 = _interopRequireDefault(_jQuery);

  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
      default: obj
    };
  }

  _jQuery2.default.entwine('ss.ping', function ($) {

    $('.cms-container').entwine({
      PingIntervalSeconds: 5 * 60,

      onadd: function onadd() {
        this._setupPinging();
        this._super();
      },

      _setupPinging: function _setupPinging() {
        var onSessionLost = function onSessionLost(xmlhttp, status) {
          if (xmlhttp.status > 400 || xmlhttp.responseText == 0) {
            if (window.open('Security/login')) {
              alert('Please log in and then try again');
            } else {
              alert('Please enable pop-ups for this site');
            }
          }
        };

        setInterval(function () {
          $.ajax({
            url: 'Security/ping',
            global: false,
            type: 'POST',
            complete: onSessionLost
          });
        }, this.getPingIntervalSeconds() * 1000);
      }
    });
  });
});