omniture.js

omniture.js

// Omniture.js is a clean up of Tribune's boilerplate Omniture
// code with some added convenience methods for setting vars,
// recording page views, etc.
//
// It sets up a singleton `omniture` object to use for all your
// Omniture needs.
//
// Example use:
//
// window.omniture.init('saccountgoeshere', {
//   pageName:  'Chicago Tribune / archives / print - edition.',
//   server:    'www.chicagotribune.com',
//   channel:   'Chicago Tribune:archives',
//   prop38:    'printedition',
//   prop64:    'mm-dd-yyyy',
//   hier1:     'Chicago Tribune:archives:print',
//   hier2:     'archives:print',
//   hier4:     'archives:print',
//   eVar20:    'Chicago Tribune',
//   eVar21:    'printedition'
// });

(function() {
  window.omniture = {
    s: null,
    page_views_recorded: 0,
    metrics_js_src: 'https://secure.chicagotribune.com/hive/javascripts/metrics/s_code_trb.js',

    init: function(account, parameters) {
      var self = this,
          js = document.createElement('script');

      js.setAttribute('src', self.metrics_js_src);
      js.setAttribute('type', 'text/javascript');
      js.onload = function() {
          self.set_vars(parameters);
          self.set_s_account(account);
          self.set_prop28();
          self.page_view();
          self.s = window.s;
      };
      document.getElementsByTagName('head')[0].appendChild(js);

      return self;
    },

    page_view: function() {
      var self = this, ret;
      window.s_code = ret = window.s.t();
      self.page_views_recorded += 1;
      if (ret)
        self.create_tracking_pixel();
      return ret;
    },

    create_tracking_pixel: function() {
      var temp = document.createElement('div');
      temp.innerHTML = window.s_code;
      document.getElementsByTagName('body')[0].appendChild(temp.children[0]);
    },

    set_var: function(key, value) {
      window.s[key] = value;
    },

    set_vars: function(parameters) {
      var self = this;
      for (var key in parameters) { self.set_var(key, parameters[key]); }
    },

    set_s_account: function(value) {
      window.s_account = value;
    },

    ssorid: function(mid){
      var m = mid;
      if (null === m || '' === m) { return false; }
      var metricArr = m.split('-').reverse();
      var retArr = [];
      var _metricsOrder = [0,5,3,2,4,4,6,2,7,1];
      for(var i=_metricsOrder.length;i--;){
        retArr[_metricsOrder[i]] = metricArr[i];
      }
      return retArr.slice(0,3).join('-');
    },

    set_prop28: function() {
      if(!!window.registration){
        var registration_username_c_unm = $.cookies.get('c_unm');
        var registration_masterid_c_mid = this.ssorid($.cookies.get('metrics_id'));
        if (registration_username_c_unm !== null && registration_masterid_c_mid)
          s.prop28=ssorid($.cookies.get('metrics_id'));
      }

      if (s.prop28 === null)
          s.prop28 = "";
    }
  };
})();