From a43d829de8826ce0f07b5e15edff231f5cdc5bff Mon Sep 17 00:00:00 2001
From: Giteabot <teabot@gitea.io>
Date: Tue, 17 Jun 2025 22:34:14 +0800
Subject: [PATCH] Fix JS error for "select" dropdown (#34743) (#34749)

Backport #34743 by wxiaoguang

Regression of recent dropdown filter change.

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
---
 web_src/js/modules/fomantic/dropdown.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/web_src/js/modules/fomantic/dropdown.ts b/web_src/js/modules/fomantic/dropdown.ts
index 0360b8ef95..02fee5a267 100644
--- a/web_src/js/modules/fomantic/dropdown.ts
+++ b/web_src/js/modules/fomantic/dropdown.ts
@@ -72,10 +72,10 @@ function updateSelectionLabel(label: HTMLElement) {
 }
 
 function onAfterFiltered(this: any) {
-  const $dropdown = $(this);
+  const $dropdown = $(this).closest('.ui.dropdown'); // "this" can be the "ui dropdown" or "<select>"
   const hideEmptyDividers = $dropdown.dropdown('setting', 'hideDividers') === 'empty';
   const itemsMenu = $dropdown[0].querySelector('.scrolling.menu') || $dropdown[0].querySelector('.menu');
-  if (hideEmptyDividers) hideScopedEmptyDividers(itemsMenu);
+  if (hideEmptyDividers && itemsMenu) hideScopedEmptyDividers(itemsMenu);
 }
 
 // delegate the dropdown's template functions and callback functions to add aria attributes.