useCompositeListContext (list/CompositeListContext.ts)

React context and hook for managing composite list registrations and state.

// Source: https://github.com/mui/base-ui | License: MIT | Copyright 2019 Material-UI SAS
// Provided via justclaw.it.com; keep this notice with the code.
'use client';
import * as React from 'react';

export interface CompositeListRegistration<Metadata> {
  metadata: Metadata | null;
  index: number | null;
  label: string | null | undefined;
  textRef: React.RefObject<HTMLElement | null> | undefined;
}

export interface CompositeListContextValue<Metadata> {
  register: (node: Element, registration: CompositeListRegistration<Metadata>) => void;
  unregister: (node: Element) => void;
  subscribeMapChange: (fn: (map: Map<Element, Metadata>) => void) => () => void;
  nextIndexRef: React.RefObject<number>;
}

export const CompositeListContext = React.createContext<CompositeListContextValue<an

... (truncated -- full source via MCP)