From e8e386a6b9a3824d4b6383f5851208a2c7186dc2 Mon Sep 17 00:00:00 2001
From: coopercoder <whitetiger0127@163.com>
Date: Mon, 26 Jan 2026 15:17:42 +0800
Subject: [PATCH] fix: Add vertical scrolling support for floating elements.
 (#30897)

Co-authored-by: zhaiguangpeng <zhaiguangpeng@didiglobal.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
---
 web/app/components/base/portal-to-follow-elem/index.tsx | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/web/app/components/base/portal-to-follow-elem/index.tsx b/web/app/components/base/portal-to-follow-elem/index.tsx
index a656ab5308..c57fba9dd0 100644
--- a/web/app/components/base/portal-to-follow-elem/index.tsx
+++ b/web/app/components/base/portal-to-follow-elem/index.tsx
@@ -61,9 +61,12 @@ export function usePortalToFollowElem({
       }),
       shift({ padding: 5 }),
       size({
-        apply({ rects, elements }) {
-          if (triggerPopupSameWidth)
-            elements.floating.style.width = `${rects.reference.width}px`
+        apply({ rects, elements, availableHeight }) {
+          Object.assign(elements.floating.style, {
+            maxHeight: `${Math.max(0, availableHeight)}px`,
+            overflowY: 'auto',
+            ...(triggerPopupSameWidth && { width: `${rects.reference.width}px` }),
+          })
         },
       }),
     ],