/// <summary>
/// Renders the script tag that includes the Google Analytics javascript files on the webpage.
/// </summary>
/// <param name="output">The <see cref="HtmlTextWriter"/> to which the output is rendered.</param>
protected static void RenderSnippetStartScript(HtmlTextWriter output)
{
RenderingUtils.RenderJavaScriptBeginTag(output);
output.WriteLine(@"(function() {");
output.WriteLine(@"var ga = document.createElement('script');");
output.WriteLine(@"ga.type = 'text/javascript';");
output.WriteLine(@"ga.async = true;");
output.WriteLine(@"ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';");
output.WriteLine(@"var s = document.getElementsByTagName('script')[0];");
output.WriteLine(@"s.parentNode.insertBefore(ga, s);");
output.WriteLine(@"})();");
//output.WriteLine(@"var gaJsHost = ((""https:"" == document.location.protocol) ? ""https://ssl."" : ""http://www."");");
//output.WriteLine(@"document.write(unescape(""%3Cscript src='"" + gaJsHost + ""google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E""));");
output.RenderEndTag();
}
/// <summary>
/// Renders the body of the Google Analytics tracking javascript.
/// Updated to Asynchronous Tracking
/// </summary>
/// <param name="output">Where the script is to be rendered.</param>
protected void RenderSnippetBodyScript(HtmlTextWriter output)
{
RenderingUtils.RenderJavaScriptBeginTag(output);
output.WriteLine(@"try {");
// Page Tracker
if (this.PageTrackerInUse)
{
output.WriteLine(string.Format(@"var _gaq=_gaq||[]; _gaq.push(['_setAccount','{0}']);", this.PageTrackerId));
if (!string.IsNullOrEmpty(this.RollupDomainName))
{
output.WriteLine(string.Format(@"_gaq.push(['_setDomainName', '{0}']);", this.PageDomainName));
}
if (this.AllowPageLinker)
{
output.WriteLine(@"_gaq.push(['_setAllowLinker', true]);");
}
output.WriteLine(@"_gaq.push(['_trackPageview']);");
output.WriteLine(@"_gaq.push(['_trackPageLoadTime']);");
}
// RollUp Tracker
if (this.RollupTrackerInUse)
{
output.WriteLine(string.Format(@"var _gaq1=_gaq||[]; _gaq1.push(['_setAccount','{0}']);", this.RollupTrackerId));
if (!string.IsNullOrEmpty(this.RollupDomainName))
{
output.WriteLine(string.Format(@"_gaq1.push(['_setDomainName', '{0}']);", this.RollupDomainName));
}
if (this.AllowRollUpLinker)
{
output.WriteLine(@"_gaq1.push(['_setAllowLinker', true]);");
}
output.WriteLine(@"_gaq1.push(['_trackPageview']);");
output.WriteLine(@"_gaq1.push(['_trackPageLoadTime']);");
}
output.WriteLine(@"} catch(err) { }");
output.RenderEndTag();
}
/// <summary>
/// Renders javascript which automatically tracks PDF link clicks and form field changes.
/// </summary>
/// <param name="output">Where the script is to be rendered.</param>
protected void RenderAdditionalTrackingScripts(HtmlTextWriter output)
{
RenderingUtils.RenderJavaScriptBeginTag(output);
output.WriteLine(@"$(document).ready(function(){");
{
output.Indent++;
// Page Tracker
if (this.PageTrackerInUse)
{
// Cross domain linking
bool renderPageDomains = !string.IsNullOrEmpty(this.PageTrackerLinkedDomainsCsv);
if (renderPageDomains)
{
string pageDomainsScriptVarName = string.Format("{0}_pDomains", this.ClientID);
output.WriteLine(string.Format(
@"var {0} = [{1}];",
pageDomainsScriptVarName,
this.PageTrackerLinkedDomainsCsv));
output.WriteLine(
string.Format(
@"jQuery.each({0}, function(index, domain){{ $(""a[href*='""+domain+""']"").click(function(){{ _gaq.push(['_link',this.href]); }}); }});",
pageDomainsScriptVarName));
}
// PDF Tracking
output.WriteLine(@"$(""a[href*='.pdf']"").click(function(){ _gaq.push(['_trackPageview', this.pathname]); }); ");
// Form Tracking
if (this.EnableFormFieldChangeTracking)
{
output.WriteLine(@"$(""input"").change(function(){ _gaq.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]);}); ");
output.WriteLine(@"$(""textarea"").change(function(){ _gaq.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]);}); ");
output.WriteLine(@"$(""select"").change(function(){ _gaq.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]);}); ");
}
}
// Rollup Tracker
if (this.RollupTrackerInUse)
{
// Cross domain linking
bool renderRollupDomains = !string.IsNullOrEmpty(this.RollupTrackerLinkedDomainsCsv);
if (renderRollupDomains)
{
string rollupDomainsScriptVarName = string.Format("{0}_rDomains", this.ClientID);
output.WriteLine(string.Format(
@"var {0} = [{1}];",
rollupDomainsScriptVarName,
this.RollupTrackerLinkedDomainsCsv));
output.WriteLine(string.Format(
@"jQuery.each({0}, function(index,domain){{ $(""a[href*='""+domain+""']"").click(function(){{ _gaq1.push(['_link',this.href]);}});}});",
rollupDomainsScriptVarName));
}
// PDF Tracking
output.WriteLine(@"$(""a[href*='.pdf']"").click(function(){ _gaq1.push(['_trackPageview', this.pathname]); }); ");
// Form Tracking
if (this.EnableFormFieldChangeTracking)
{
output.WriteLine(@"$(""input"").change(function(){ _gaq1.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]); }); ");
output.WriteLine(@"$(""textarea"").change(function(){ _gaq1.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]); }); ");
output.WriteLine(@"$(""select"").change(function(){ _gaq1.push(['_trackEvent',""Forms"",""Change"",location.pathname+"" - ""+$(this).attr(""name"")]); }); ");
}
}
output.Indent--;
}
output.WriteLine(" });");
output.RenderEndTag();
}