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basic GA4 support #330

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basic GA4 support #330

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74 changes: 37 additions & 37 deletions _includes/body/analytics.html
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Original file line number Diff line number Diff line change
@@ -1,43 +1,43 @@
{% if site.google_analytics %}
<script>!function(w, d) {
w.ga=w.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
<script>!function (w, d) {
window.dataLayer = w.dataLayer || [];
function gtag() {dataLayer.push(arguments);}
gtag('js', new Date());

/*{% if site.hydejack.cookies_banner %}*/
if (navigator.CookiesOK) {
ga('create', '{{ site.google_analytics }}', 'auto');
} else if (d.cookie.indexOf("hy--cookies-ok=true") > -1) {
ga('create', '{{ site.google_analytics }}', {
'storage': 'none',
'clientId': localStorage ? localStorage.getItem('ga--client-id') : undefined
});
} else {
ga('create', '{{ site.google_analytics }}', {
'storage': 'none'
});
ga('set', 'forceSSL', true);
ga('set', 'anonymizeIp', true);
}
/*{% else %}*/
ga('create', '{{ site.google_analytics }}', 'auto');
/*{% endif %}*/
function gtagConsentDefaultOff() {
gtag('consent', 'default', {
'ad_storage': 'denied',
'analytics_storage': 'denied'
});
};

function gtagConsentUpdateOn() {
gtag('consent', 'update', {
'ad_storage': 'granted',
'analytics_storage': 'granted'
});
};

var pushStateEl = d.getElementById('_pushState');
var timeoutId;
pushStateEl.addEventListener('hy-push-state-load', function() {
w.clearTimeout(timeoutId);
timeoutId = w.setTimeout(function() {
ga('set', 'page', w.location.pathname);
ga('send', 'pageview');
}, 500);
});
Comment on lines -24 to -32
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@tgaff tgaff Sep 11, 2023

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GA4 watches the pushState API on it's own so I believe this is no longer needed. However I believe the feature has to be enabled as part of "Enhanced Metrics" in order to work. At least on my account it appeared to be enabled by default.
It may be worth documenting this.
Screen Shot 2023-09-11 at 1 35 53 PM

/*{% if site.hydejack.cookies_banner %}*/
if (navigator.CookiesOK) {
/* CookiesOK is not part of the navigator spec, not sure when this is true (extensions?) */
/* noop - we activate below */
} else if (d.cookie.indexOf("hy--cookies-ok=true") > -1) {
/* if cookies are opt-in only and opted for */
gtagConsentUpdateOn();
} else {
/* consent required and not yet given */
gtagConsentDefaultOff();
}
/*{% endif %}*/

d.addEventListener('hy--cookies-ok', function () {
w.ga(function(tracker) {
w.ga("set", "anonymizeIp", undefined);
localStorage && localStorage.setItem("ga--client-id", tracker.get("clientId"));
});
});
/* start tracking will respect consent if set */
gtag('config', '{{ site.google_analytics }}');

d.addEventListener('hy--cookies-ok', function () {
gtagConsentUpdateOn();
});

w.loadJSDeferred('https://www.google-analytics.com/analytics.js');
}(window, document);</script>
w.loadJSDeferred('https://www.googletagmanager.com/gtag/js?id={{ site.google_analytics }}');
}(window, document);</script>
{% endif %}