null
*/
cookieDomain: null,
/**
* Cookie path.
*
* If empty, / is assumed as a path.
* @type String
* @default: null
*/
cookiePath: null,
/**
* Cookie name.
*
* The name of the cookie that will store global tracking parameters.
* @default '_tracker'.
* @type String
*/
cookieName: '_ttTracker',
/**
* Name of the parameter for cross-site cookie transfer.
* @default '_trackingCookie'.
* @see TravelAudienceTrack.global.buildCrossSiteUrl
* @type String
*/
crossSiteParam: '_ttTrackerCookie'
},
/**
* Tracker settings.
* Contains browserdetection, special options etc
* @namespace
*/
settings: {
/**
* Use images instead of script
* @default 'false'.
* @type booelaen
*/
useImageApproach: false,
/**
* Fix for IE6-7 http://support.microsoft.com/kb/927917/en-us
* Adds a additional child.
* Overwritten if autodetect is true
* @default 'false'.
* @type booelaen
*/
nestedFix: false,
/**
* Detects Browser and sets settings
* @default 'true'.
* @type booelaen
*/
autodetect: true
},
_anchorDiv: null,
/**
* Global parameters storage.
*
* Used to manage parameters that shall be submitted implicitly with every tracking request for the current site.
** Technically, global parameters are stored in a cookie bound to the domain of the site where this script is loaded from. * Global parameters are represented as a single key/value object which is serialized to a string using the JSON notation which is URL-encoded. * The same format is used to pass global parameters for cross-site transfers. *
* * @namespace */ global: { _data: {}, /** * Set a global parameter. * * @function * @param key parameter key, can be string to set one variable, or object {key1: value1, key2: value2, ...} to set multiple variables * @param value parameter value; usenull to remove the parameter from the global storage.
* @example Tracking.global.set('siteId', 12);
*/
set: function(key, value) {
if (typeof key == 'string') {
var tmpKey = {};
tmpKey[key] = value;
key = tmpKey;
}
for (var k in key) {
if (key.hasOwnProperty(k)) {
if (key[k]) {
this._data[k] = key[k];
} else {
if (this._data[k]) {
delete this._data[k];
}
}
}
}
this._toCookies();
},
/**
* Get a global parameter.
* @param key parameter key
* @return global parameter value or null.
* @example
* var siteId = Tracking.global.get('siteId');
*/
get: function(key) {
return this._data[key];
},
/**
* Get all global parameters.
* @return a JavaScript object with key/value representation of global parameters.
* @example
* for (var key in TravelAudienceTrack.global.getAll()) {
* alert(TravelAudienceTrack.global.get(key));
* }
*
*/
getAll: function() {
return this._data;
},
/**
* Clear all global parameters.
*/
clear: function() {
this._data = {};
this._toCookies();
},
_toCookies: function() {
try {
this._setCookie(TravelAudienceTrack.config.cookieName, this._serialize(this._data));
} catch(e) {
}
},
_fromCookies: function() {
try {
this._data = this._deserialize(this._getCookie(TravelAudienceTrack.config.cookieName));
if (!this._data) {
this._data = {};
this._data['UUID'] = Math.uuid();
} else if (!this._data['UUID']) {
this._data['UUID'] = Math.uuid();
}
} catch(e) {
}
},
_setCookie: function (name, value) {
if (TravelAudienceTrack.config.cookieLifetime) {
var date = new Date();
date.setTime(date.getTime() + TravelAudienceTrack.config.cookieLifetime);
}
document.cookie = name + "=" + escape(value) +
(date ? "; expires=" + date.toGMTString() : "") +
((TravelAudienceTrack.config.cookiePath) ? "; path=" + TravelAudienceTrack.config.cookiePath : "") +
((TravelAudienceTrack.config.cookieDomain) ? "; domain=" + TravelAudienceTrack.config.cookieDomain : "");
},
_getCookie: function (name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
var c;
for (var i = 0; i < ca.length; i++) {
c = ca[i];
while (c.charAt(0) == ' ') c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0) return unescape(c.substring(nameEQ.length, c.length));
}
return '';
},
_clearCookie: function (name) {
document.cookie = name + "=; expires=" + (new Date().toGMTString() - 1000) +
((TravelAudienceTrack.config.cookiePath) ? "; path=" + TravelAudienceTrack.config.cookiePath : "") +
((TravelAudienceTrack.config.cookieDomain) ? "; domain=" + TravelAudienceTrack.config.cookieDomain : "");
},
_serialize : function (obj) {
var t = typeof (obj);
if (t != "object" || obj === null) {
if (t == "string") obj = '"' + obj + '"';
return String(obj);
}
else {
var n, v, json = [], arr = (obj && obj.constructor == Array);
for (n in obj) {
v = obj[n];
t = typeof(v);
if (t == "string") v = '"' + v + '"';
else if (t == "object" && v !== null) v = this._serialize(v);
json.push((arr ? "" : '"' + n + '":') + String(v));
}
return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}");
}
},
_deserialize: function(str) {
if (str === "") {
str = '""';
}
eval("var p=" + str + ";");
return p;
},
_buildXSCode: function() {
var data = {};
data[TravelAudienceTrack.config.crossSiteParam] = this._serialize(this._data);
return TravelAudienceTrack._dataToQueryString(data);
},
_handleXSParameter: function() {
var url = window.location.href;
var paramPiece = '#' + TravelAudienceTrack.config.crossSiteParam + '=';
var index = url.indexOf(paramPiece);
var param;
if (index >= 0) {
param = decodeURIComponent(url.substr(index + paramPiece.length).split('#')[0]);
try {
this._data = this._deserialize(param);
if (!this._data) {
this._data = {};
}
} catch(e) {
}
this._toCookies();
}
},
/**
* Build a cross-site URL.
*
* In some cases it may be required to transfer global parameters to a site in a different domain.
* This method changes the given URL by appending some technical parameters as a URL anchor (#).
* A tracking script on the target site should then transparently populate its global parameters with the global parameters of the source site.
* @function
* @param {String} url URL to be modified.
* @type String
* @example
* document.write('<a href="' + TravelAudienceTrack.global.buildCrossSiteUrl('http://some.site.com/') + '">');
*/
buildCrossSiteUrl: function(url) {
return url + '#' + this._buildXSCode();
}
},
_dataToQueryString: function(data) {
var str = '';
for (key in data) {
if (str) {
str += '&';
}
str += encodeURIComponent(key) + '=' + encodeURIComponent(data[key]);
}
return str;
},
_buildDataUrl: function(url, data) {
if (data) {
if (url.indexOf('?') === -1) {
url += '?';
} else {
url += '&';
}
url += this._dataToQueryString(data) + "&__trackerRequestId=" + Math.random();
}
return url;
},
_sendData: function(url, data, callback) {
var dataUrl = TravelAudienceTrack._buildDataUrl(url, data);
if (TravelAudienceTrack.settings.useImageApproach) {
var image = new Image();
image.src = dataUrl;
} else {
var script = document.createElement('script');
script.setAttribute('src', dataUrl);
if (typeof callback == 'function') {
this.sendCallback = callback;
// Fallback - nach 250ms wird in jedem Fall die callback-Funktion aufgerufen, auch wenn onload fehlschlägt
window.setTimeout('TravelAudienceTrack.sendCallback()', 500);
script.setAttribute('onload', 'TravelAudienceTrack.sendCallback()');
}
script.setAttribute('type', 'text/javascript');
if (!TravelAudienceTrack.settings.nestedFix) {
document.body.appendChild(script);
} else {
if (_anchorDiv == null) {
_anchorDiv = document.getElementById('TravelAudienceAnchor');
}
if (_anchorDiv != null) {
_anchorDiv.appendChild(script);
}
}
}
},
_getIEVersion: function () {
var rv = -1; // Return value assumes failure.
if (navigator.appName == 'Microsoft Internet Explorer') {
var ua = navigator.userAgent;
var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
if (re.exec(ua) != null)
rv = parseFloat(RegExp.$1);
}
return rv;
},
/**
* Submit the tracking data.
* @param {Object} data tracking data in the form of JavaScript key/value object.
* @param {Boolean} [skipGlobals=false] whether global parameters should be skipped. By default, all global parameters are sent along with tracking data.
* @example
* TravelAudienceTrack.send({
* a: 1,
* b: "lorem ipsum"
* });
*/
send: function(data, callback, skipGlobals) {
var _data = skipGlobals ? {} : this._clone(this.global._data);
this._copy(_data, data);
this._sendData(this.config.baseUrl, _data, callback);
},
sendCallback: function() {
},
_clone: function(src) {
if (src == null || typeof(src) != 'object')
return src;
var dst = src.constructor();
this._copy(dst, src);
return dst;
},
_copy: function(dst, src) {
if (src == null || typeof(src) != 'object') {
dst = src;
return dst;
}
for (var key in src)
dst[key] = this._clone(src[key]);
return dst;
},
_init: function() {
if (this._initialized) {
return;
}
if (TravelAudienceTrack.settings.autodetect) {
var v=this._getIEVersion();
if ( (v>5.5) && (v<=7.0) ) {
TravelAudienceTrack.settings.nestedFix = true;
}
}
if (TravelAudienceTrack.settings.nestedFix) {
//_anchorDiv = document.createElement('div');
//_anchorDiv.setAttribute('id','TravelAudienceAnchor');
//document.body.appendchild(_anchorDiv);
document.write('');
_anchorDiv = document.getElementById('TravelAudienceAnchor');
}
this._initialized = true;
this.global._fromCookies();
this.global._handleXSParameter();
this.processQueue();
},
/**
* Submit series of events stored in the queue.
*
* This method may be useful for registering events without certainty that the TravelAudienceTrack object is initialized.
*
* @param {Array} [queue] queue containing events to send; if omitted,
* the global variable _trackerEventQueue is assumed.
*
* @example
* // create the event queue or use the existing one
* var _trackerEventQueue = _trackerEventQueue || [];
* // queue event
* _trackerEventQueue.push({event: 'initialized'});
* // if the tracker object is already initialized then submit all events in the queue,
* // otherwise the tracker will automatically process the queue on initialization
* if (window.TravelAudienceTrack)
* TravelAudienceTrack.processQueue();
*/
processQueue: function(queue) {
var _queue = queue || window._trackerEventQueue;
if(_queue) {
try {
while (_queue.length > 0) {
this.send(_queue.shift());
}
} catch(e) {
}
}
}
};
TravelAudienceTrack._init();