From 6d3ef494b4cf2dac88ffc348f40567c363fa7620 Mon Sep 17 00:00:00 2001
From: Mark McDowall <mark@mcdowall.ca>
Date: Mon, 20 Apr 2026 17:16:39 -0700
Subject: [PATCH] Add useCombinedRefs hook

---
 frontend/src/Helpers/Hooks/useCombinedRefs.ts | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 frontend/src/Helpers/Hooks/useCombinedRefs.ts

diff --git a/frontend/src/Helpers/Hooks/useCombinedRefs.ts b/frontend/src/Helpers/Hooks/useCombinedRefs.ts
new file mode 100644
index 000000000..00ee45d29
--- /dev/null
+++ b/frontend/src/Helpers/Hooks/useCombinedRefs.ts
@@ -0,0 +1,39 @@
+import { ForwardedRef, useCallback, useRef } from 'react';
+
+type OptionalRef<T> = ForwardedRef<T> | undefined;
+
+function setRef<T>(ref: OptionalRef<T>, value: T | null) {
+  if (typeof ref === 'function') {
+    ref(value);
+  } else if (ref) {
+    ref.current = value;
+  }
+}
+
+function useCombinedRefs<T>(...refs: OptionalRef<T>[]) {
+  const previousRefs = useRef<OptionalRef<T>[]>([]);
+
+  return useCallback((value: T | null) => {
+    let index = 0;
+    for (; index < refs.length; index++) {
+      const ref = refs[index];
+      const prev = previousRefs.current[index];
+
+      if (prev !== ref) {
+        setRef(prev, null);
+      }
+      setRef(ref, value);
+    }
+
+    for (; index < previousRefs.current.length; index++) {
+      const prev = previousRefs.current[index];
+      setRef(prev, null);
+    }
+
+    previousRefs.current = refs;
+
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, refs);
+}
+
+export default useCombinedRefs;