Use Tom Select CDN major version 2

contao/templates/frontend/event_filter.html.twig

@@ -96,8 +96,8 @@
 
 </style>
 
-<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/tom-select@2.4.3/dist/css/tom-select.css">
-<script src="https://cdn.jsdelivr.net/npm/tom-select@2.4.3/dist/js/tom-select.complete.min.js"></script>
+<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/tom-select@2/dist/css/tom-select.css">
+<script src="https://cdn.jsdelivr.net/npm/tom-select@2/dist/js/tom-select.complete.min.js"></script>
 
 <script type="module">
     const filters = document.getElementById('eventfilters');
@@ -135,6 +135,8 @@
             return null;
         }
 
+        let shouldBlurOnChange = false;
+
         return new window.TomSelect(selectElement, {
             create: false,
             sortField: {
@@ -149,6 +151,30 @@
                     return '<div class="no-more-results" role="option" aria-disabled="true">Keine weiteren Ergebnisse</div>';
                 },
             },
+            onInitialize() {
+                const markPointerInteraction = () => {
+                    shouldBlurOnChange = true;
+                };
+
+                const markKeyboardInteraction = () => {
+                    shouldBlurOnChange = false;
+                };
+
+                this.control.addEventListener('pointerdown', markPointerInteraction);
+                this.control.addEventListener('touchstart', markPointerInteraction, { passive: true });
+                this.control.addEventListener('keydown', markKeyboardInteraction);
+                this.dropdown.addEventListener('pointerdown', markPointerInteraction);
+                this.dropdown.addEventListener('touchstart', markPointerInteraction, { passive: true });
+                this.dropdown.addEventListener('keydown', markKeyboardInteraction);
+            },
+            onChange() {
+                if (!shouldBlurOnChange) {
+                    return;
+                }
+
+                this.blur();
+                shouldBlurOnChange = false;
+            },
         });
     };