| 1 | import { createContext, useCallback, useContext, useMemo, useRef, type ReactNode } from "react"; |
| 2 | |
| 3 | // Shell-expand coordination: ToolCards register their toggle callbacks, and |
| 4 | // Cmd+B (from App) calls the most recent one. |
| 5 | |
| 6 | type ToggleFn = () => void; |
| 7 | |
| 8 | interface ShellExpandCtx { |
| 9 | register: (id: string, toggle: ToggleFn) => void; |
| 10 | toggleLast: () => void; |
| 11 | } |
| 12 | |
| 13 | const Ctx = createContext<ShellExpandCtx | null>(null); |
| 14 | |
| 15 | export function ShellExpandProvider({ children }: { children: ReactNode }) { |
| 16 | const mapRef = useRef(new Map<string, ToggleFn>()); |
| 17 | const orderRef: { current: string[] } = useRef<string[]>([]); |
| 18 | |
| 19 | const register = useCallback((id: string, toggle: ToggleFn) => { |
| 20 | mapRef.current.set(id, toggle); |
| 21 | if (!orderRef.current.includes(id)) { |
| 22 | orderRef.current.push(id); |
| 23 | } |
| 24 | return () => { |
| 25 | mapRef.current.delete(id); |
| 26 | orderRef.current = orderRef.current.filter((x) => x !== id); |
| 27 | }; |
| 28 | }, []); |
| 29 | |
| 30 | const toggleLast = useCallback(() => { |
| 31 | const ids = orderRef.current; |
| 32 | if (ids.length === 0) return; |
| 33 | const fn = mapRef.current.get(ids[ids.length - 1]); |
| 34 | fn?.(); |
| 35 | }, []); |
| 36 | |
| 37 | const value = useMemo(() => ({ register, toggleLast }), [register, toggleLast]); |
| 38 | return <Ctx.Provider value={value}>{children}</Ctx.Provider>; |
| 39 | } |
| 40 | |
| 41 | export function useShellExpand() { |
| 42 | return useContext(Ctx); |
| 43 | } |
| 44 |