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fix(web): preserve file tree expansion state across reloads #61

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Merged
enisze merged 1 commit into from
Aug 18, 2026
Merged

fix(web): preserve file tree expansion state across reloads #61

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16 changes: 15 additions & 1 deletion apps/web/src/components/files/FileBrowserPanel.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -264,7 +264,21 @@ export default function FileBrowserPanel({
};

useEffect(() => {
if (previousTreePathsRef.current === treePaths) return;
// A refresh yields a new entries array even when the paths are unchanged;
// comparing by value (not reference) avoids re-running resetPaths, which
// would re-apply `initialExpansion` and blow away the user's current
// expand/collapse state on every reload.
const previous = previousTreePathsRef.current;
if (
previous.length === treePaths.length &&
previous.every((path, index) => path === treePaths[index])
) {
// Paths are identical; keep the ref pointing at the fresh array so later
// reference checks stay cheap, but leave the tree state untouched.
entryKindsRef.current = entryKinds;
previousTreePathsRef.current = treePaths;
return;
}
entryKindsRef.current = entryKinds;
previousTreePathsRef.current = treePaths;
model.resetPaths(treePaths);
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