mirror of
https://github.com/Snigdha-OS/documentation.git
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30 lines
1.2 KiB
JavaScript
30 lines
1.2 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import React, { useMemo, useContext } from 'react';
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import { ReactContextError } from '../utils/reactUtils';
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// Using a Symbol because null is a valid context value (a doc with no sidebar)
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// Inspired by https://github.com/jamiebuilds/unstated-next/blob/master/src/unstated-next.tsx
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const EmptyContext = Symbol('EmptyContext');
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const Context = React.createContext(EmptyContext);
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/**
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* Provide the current sidebar to your children.
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*/
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export function DocsSidebarProvider({ children, name, items, }) {
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const stableValue = useMemo(() => (name && items ? { name, items } : null), [name, items]);
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return <Context.Provider value={stableValue}>{children}</Context.Provider>;
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}
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/**
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* Gets the sidebar that's currently displayed, or `null` if there isn't one
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*/
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export function useDocsSidebar() {
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const value = useContext(Context);
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if (value === EmptyContext) {
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throw new ReactContextError('DocsSidebarProvider');
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}
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return value;
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}
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//# sourceMappingURL=docsSidebar.js.map
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