refl.fr/src/components/CookieBanner.astro

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---
/**
* Privacy notice banner component.
* Displays a GDPR-compliant consent banner at the bottom of the page.
* Manages user consent for analytics via localStorage.
*
* Note: Analytics loading is handled separately in Layout.astro to avoid
* ad blockers blocking this script due to analytics-related keywords.
*
* Element IDs use generic names to avoid ad blocker filter lists that
* target common patterns like "cookie-banner" or "consent-notice".
*/
---
<div
id="priv-notice"
class="fixed bottom-0 left-0 right-0 z-50 hidden"
role="dialog"
aria-labelledby="pn-title"
aria-describedby="pn-desc"
>
<div class="bg-base-200 border-t border-base-300 p-4 shadow-lg">
<div class="container mx-auto max-w-4xl">
<div class="flex flex-col sm:flex-row items-start sm:items-center gap-4">
<div class="flex-1">
<h2 id="pn-title" class="font-semibold mb-1">Privacy Notice</h2>
<p id="pn-desc" class="text-sm text-base-content/80">
We use analytics to understand how visitors use this site.
<a href="/privacy/" class="link link-primary">Learn more</a>
</p>
</div>
<div class="flex gap-2 flex-shrink-0">
<button
id="pn-decline"
class="btn btn-sm btn-ghost"
type="button"
>
Decline
</button>
<button
id="pn-accept"
class="btn btn-sm btn-primary"
type="button"
>
Accept
</button>
</div>
</div>
</div>
</div>
</div>
<script is:inline>
(function() {
var CONSENT_KEY = 'priv-notice';
var banner = document.getElementById('priv-notice');
var acceptBtn = document.getElementById('pn-accept');
var declineBtn = document.getElementById('pn-decline');
function setConsent(granted) {
localStorage.setItem(CONSENT_KEY, granted ? 'granted' : 'denied');
banner.classList.add('hidden');
if (granted) {
window.dispatchEvent(new CustomEvent('consent-granted'));
}
}
function checkConsent() {
var consent = localStorage.getItem(CONSENT_KEY);
if (consent === 'granted') {
window.dispatchEvent(new CustomEvent('consent-granted'));
} else if (consent === null) {
banner.classList.remove('hidden');
}
}
acceptBtn.addEventListener('click', function() { setConsent(true); });
declineBtn.addEventListener('click', function() { setConsent(false); });
checkConsent();
})();
</script>