http://www.steelanol.eu/assets/js/libs/ga_tracking.js

1/*
2 * Google Analytics tracking
3 *
4 * Tracks:
5 *		- mailto-links
6 *		- external links
7 *		- PDF and JPG links
8 *		- links with class trackbtn and optionally data-title="Title to show in results"
9 *
10 *	@author Jonas De Smet
11 *
12 *	requires jQuery and Google Analytics async tracking
13 */
14$(function() {
15
16	var external = [];
17	var mails = [];
18	var files = [];
19	var trackbtns = [];
20	var filetypes = ['pdf','jpg'];
21	var links = $('a');
22	var l_length = links.length;
23	for (i=0;i<l_length;i++)
24	{
25		var $elem = $(links[i]);
26		var href = $elem.attr('href');
27
28		if (href !== undefined)
29		{
30			if ((href.match(/^https?\:/i)) && (!href.match(document.domain)))
31			{
32				external.push(links[i]);
33			}
34			else if (href.match(/^mailto\:/i))
35			{
36				mails.push(links[i]);
37			}
38			else if ($.inArray(href.split('.')[href.split('.').length - 1], filetypes) >= 0)
39			{
40				files.push(links[i]);
41			}
42			else if($elem.hasClass('tracking'))
43			{
44				trackbtns.push(links[i]);
45			}
46		}
47	}
48
49	$(external).on('click', function(){
50		var link = $(this);
51		var linktxt = (link.attr('title') !== '') ? link.attr('title') + ' [' + link.attr('href').replace(/^https?\:\/\//i, '') + ']' : link.attr('href').replace(/^https?\:\/\//i, '');
52		ga('send', 'event', 'external', 'visit', linktxt);
53	});
54
55	$(mails).on('click', function(){
56		var email = $(this);
57		var emailtxt = email.attr('href').substring(7);
58		ga('send', 'event', 'mailto', 'click', emailtxt);
59	});
60
61	$(files).on('click', function(){
62		var file = $(this);
63		var filehref = file.attr('href');
64		var fileext = filehref.split('.')[filehref.split('.').length - 1];
65		var filename = filehref.substring(filehref.lastIndexOf('/')+1);
66		ga('send', 'event', 'download', fileext, filename);
67	});
68
69	$(trackbtns).on('click', function(){
70		var link = $(this);
71		var txt = (link.data('title') !== 'undefined') ? link.data('title') : link.attr('href').replace(/^https?\:\/\//i, '');
72		ga('send', 'event', 'button', 'click', txt);
73	});
74
75});