feat: consider gdpr plugin

bin/frontend/gdprReader.js

+(function() {
+    'use strict';
+
+    const loadNode = function(Node) {
+        if (Node.getAttribute('data-qui-html-snippet-gdpr-loaded')) {
+            return;
+        }
+
+        Node.innerHTML = atob(Node.innerHTML);
+        const scripts = Array.from(Node.getElementsByTagName('script'));
+
+        scripts.forEach((script) => {
+            const newScript = document.createElement('script');
+            newScript.textContent = script.textContent;
+            script.parentNode.replaceChild(newScript, script);
+        });
+
+        Node.setAttribute('data-qui-html-snippet-gdpr-loaded', 1);
+        Node.style.display = '';
+    };
+
+    const fetchNodes = function(nodes) {
+        nodes.forEach((Node) => {
+            const gdprCategory = Node.getAttribute('data-qui-html-snippet-gdpr-category');
+
+            if (window.GDPR.isCookieCategoryAccepted(gdprCategory)) {
+                loadNode(Node);
+            } else {
+                window.GDPR.waitForCookieCategoryAcceptance(gdprCategory).then(() => {
+                    loadNode(Node);
+                });
+            }
+        });
+    };
+
+    fetchNodes(document.querySelectorAll('[data-qui-html-snippet="gdpr"]'));
+
+    window.whenQuiLoaded().then(() => {
+        fetchNodes(document.querySelectorAll('[data-qui-html-snippet="gdpr"]'));
+    });
+})();

events.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <events>
     <event on="onQuiqqerInit" fire="\QUI\HtmlSnippets\EventHandler::onQuiqqerInit"/>
+    <event on="onQuiqqer::template::header::end" fire="\QUI\HtmlSnippets\EventHandler::onTemplateEnd"/>
 </events>

src/QUI/HtmlSnippets/EventHandler.php

@@ -3,6 +3,7 @@
 namespace QUI\HtmlSnippets;
 
 use QUI;
+use Quiqqer\Engine\Collector;
 
 class EventHandler
 {
@@ -31,4 +32,15 @@ class EventHandler
             QUI::getEvents()->addEvent($event, [new SnippetTemplateEvent($snippet), 'onFireEvent']);
         }
     }
+
+    public static function onTemplateEnd(
+        Collector $Collection,
+        QUI\Template $Template
+    ) {
+        if (QUI::getPackageManager()->isInstalled('quiqqer/gdpr')) {
+            $Collection->append(
+                '<script src="' . URL_OPT_DIR . 'quiqqer/html-snippets/bin/frontend/gdprReader.js"></script>'
+            );
+        }
+    }
 }

src/QUI/HtmlSnippets/SnippetTemplateEvent.php

@@ -6,6 +6,7 @@ use QUI;
 use Quiqqer\Engine\Collector;
 
 use function array_values;
+use function base64_encode;
 
 /**
  * Class SnippetEvent
@@ -55,7 +56,23 @@ class SnippetTemplateEvent
         }
 
         foreach ($this->snippets as $snippet) {
-            $Collector->append($snippet['snippet']);
+            $gdprIsInstalled = QUI::getPackageManager()->isInstalled('quiqqer/gdpr');
+
+            if (empty($snippet['gdpr']) || !$gdprIsInstalled) {
+                $Collector->append($snippet['snippet']);
+                continue;
+            }
+
+            // consider gdpr status
+            $div = '<div ';
+            $div .= ' data-qui-html-snippet="gdpr"';
+            $div .= ' data-qui-html-snippet-gdpr-category="' . $snippet['gdpr'] . '"';
+            $div .= ' style="display: none"';
+            $div .= '>';
+            $div .= base64_encode($snippet['snippet']);
+            $div .= '</div>';
+
+            $Collector->append($div);
         }
     }
 }