Line data    Source code

       1              : import * as React from 'react';
       2              : 
       3              : import type { QueryResultCache } from '../query/query_result_cache.js';
       4              : import { createOPFSQueryResultCache } from './opfs_query_result_cache.js';
       5              : 
       6            1 : const CACHE_CTX = React.createContext<QueryResultCache | null>(null);
       7              : 
       8              : /// The query result cache of the app, null without a provider
       9            1 : export function useQueryResultCache(): QueryResultCache | null {
      10            1 :     return React.useContext(CACHE_CTX);
      11            1 : }
      12              : 
      13              : /// Provide the query result cache of the app, by default the one in the origin private file system
      14            1 : export function QueryResultCacheProvider(props: { cache?: QueryResultCache; children: React.ReactElement }) {
      15            1 :     const cache = React.useMemo(() => props.cache ?? createOPFSQueryResultCache(), [props.cache]);
      16            1 :     return <CACHE_CTX.Provider value={cache}>{props.children}</CACHE_CTX.Provider>;
      17            1 : }