import { createContext, useContext } from "react"; // Rows only need the handler at click time; a stable context value keeps the // expand affordance out of every GridRow/GridCell memo equality check. const RowExpandContext = createContext<((rowId: string) => void) | null>(null); export const RowExpandProvider = RowExpandContext.Provider; export function useRowExpand(): ((rowId: string) => void) | null { return useContext(RowExpandContext); }