From 910686293cfd30ec67d127ae06df5aae0f1f5692 Mon Sep 17 00:00:00 2001
From: Anthony LC <anthony.le-courric@mail.numerique.gouv.fr>
Date: Mon, 17 Mar 2025 16:57:25 +0100
Subject: [PATCH] =?UTF-8?q?=E2=9A=A1=EF=B8=8F(frontend)=20improve=20headin?=
 =?UTF-8?q?g=20store?=
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Reset headings only when the headers are not
equal to the previous ones. It will prevent
unnecessary rerenders.
---
 .../features/docs/doc-editor/stores/useHeadingStore.tsx    | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/frontend/apps/impress/src/features/docs/doc-editor/stores/useHeadingStore.tsx b/src/frontend/apps/impress/src/features/docs/doc-editor/stores/useHeadingStore.tsx
index e67800c6..c77ac3cf 100644
--- a/src/frontend/apps/impress/src/features/docs/doc-editor/stores/useHeadingStore.tsx
+++ b/src/frontend/apps/impress/src/features/docs/doc-editor/stores/useHeadingStore.tsx
@@ -1,3 +1,4 @@
+import _ from 'lodash';
 import { create } from 'zustand';
 
 import { DocsBlockNoteEditor, HeadingBlock } from '../types';
@@ -24,7 +25,7 @@ export interface UseHeadingStore {
   resetHeadings: () => void;
 }
 
-export const useHeadingStore = create<UseHeadingStore>((set) => ({
+export const useHeadingStore = create<UseHeadingStore>((set, get) => ({
   headings: [],
   setHeadings: (editor) => {
     const headingBlocks = editor?.document
@@ -36,7 +37,9 @@ export const useHeadingStore = create<UseHeadingStore>((set) => ({
         ),
       })) as unknown as HeadingBlock[];
 
-    set(() => ({ headings: headingBlocks }));
+    if (!_.isEqual(get().headings, headingBlocks)) {
+      set(() => ({ headings: headingBlocks }));
+    }
   },
   resetHeadings: () => set(() => ({ headings: [] })),
 }));