Activate / Deactivate BUTTON for Contao Google Analytics Template

analytics_google.html

<?php

/**
 * To use this script, please fill in your Google Analytics ID below
 */
$GoogleAnalyticsId = 'UA-XXXXX-X';


/**
 * DO NOT EDIT ANYTHING BELOW THIS LINE UNLESS YOU KNOW WHAT YOU ARE DOING!
 */
if ($GoogleAnalyticsId != 'UA-XXXXX-X' && !BE_USER_LOGGED_IN && sha1(session_id() . (!Config::get('disableIpCheck') ? Environment::get('ip') : '') . 'BE_USER_AUTH') != Input::cookie('BE_USER_AUTH')): ?>

<script>

	/**
	 * ################################################################################
	 * INSERT THIS BUTTON ON YOUR PAGE
	 * <a id="gaOptout" href="javascript:gaOptout();">Google Analytics deaktivieren</a>
	 * ################################################################################
	 **/
	var gaProperty = '<?php echo $GoogleAnalyticsId; ?>';
	var disableStr = 'ga-disable-' + gaProperty;
	var gadeactbtn = document.getElementById("gaOptout");
	
	if (gadeactbtn)
	{
		if (document.cookie.indexOf(disableStr + '=true') > -1) {
			document.getElementById("gaOptout").text  = "Google Analytics aktivieren";
			window[disableStr] = true;
		}
		else {
			document.getElementById("gaOptout").text  = "Google Analytics deaktivieren";
			window[disableStr] = false;
		}
	}
	
	function gaOptout() {
		if (document.cookie.indexOf(disableStr + '=true') > -1) {
			document.cookie = disableStr + '=; expires=Thu, 01 Jan 1970 00:00:01 UTC; path=/';
			window[disableStr] = true;
			document.getElementById("gaOptout").text  = "Google Analytics deaktivieren";
		}
		 else {
			document.cookie = disableStr + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/';
			window[disableStr] = false;
			document.getElementById("gaOptout").text  = "Google Analytics aktivieren";
		 }
	}

	(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
	ga('create', '<?= $GoogleAnalyticsId ?>', 'auto');
	<?php if (Config::get('privacyAnonymizeGA')): ?>
	ga('set', 'anonymizeIp', true);
	<?php endif; ?>
	ga('send', 'pageview');
</script>

<?php endif; ?>