From 476c1620163b30ce906090cc43b330c08a818b3b Mon Sep 17 00:00:00 2001
From: Elian Doran <contact@eliandoran.me>
Date: Sat, 13 Dec 2025 16:31:19 +0200
Subject: [PATCH] fix(layout/formatting_toolbar): memory leak for closed tabs

---
 apps/client/src/widgets/ribbon/FormattingToolbar.tsx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/apps/client/src/widgets/ribbon/FormattingToolbar.tsx b/apps/client/src/widgets/ribbon/FormattingToolbar.tsx
index c1e7d103f..c8d32aab7 100644
--- a/apps/client/src/widgets/ribbon/FormattingToolbar.tsx
+++ b/apps/client/src/widgets/ribbon/FormattingToolbar.tsx
@@ -64,6 +64,13 @@ export function FixedFormattingToolbar() {
         }
     });
 
+    // Clean the cache when tabs are closed.
+    useTriliumEvent("noteContextRemoved", ({ ntxIds: eventNtxIds }) => {
+        for (const eventNtxId of eventNtxIds) {
+            toolbarCache.delete(eventNtxId);
+        }
+    });
+
     // Switch between the cached toolbar when user navigates to a different note context.
     useEffect(() => {
         if (!ntxId) return;