Function getOrefMetaKeyAtom

frontend/app/store/global.ts:139–153

(oref: string, key: T)

}

function getOrefMetaKeyAtom<T extends keyof MetaType>(oref: string, key: T): Atom<MetaType[T]> {
    const orefCache = getSingleOrefAtomCache(oref);
    const metaAtomName = "#meta-" + key;
    let metaAtom = orefCache.get(metaAtomName);
    if (metaAtom != null) {
        return metaAtom;
    }
    metaAtom = atom((get) => {
        const objAtom = WOS.getWaveObjectAtom(oref);
        const objData = get(objAtom);
        return objData?.meta?.[key];
    });
    orefCache.set(metaAtomName, metaAtom);
    return metaAtom;
}

function useOrefMetaKeyAtom<T extends keyof MetaType>(oref: string, key: T): MetaType[T] {
    return useAtomValue(getOrefMetaKeyAtom(oref, key));