42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
// Copyright 2017-2020 @polkadot/apps authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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// Adapted from https://hackernoon.com/simplifying-responsive-layouts-with-react-hooks-19db73893a7a
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import React, { useEffect, useState } from 'react';
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interface Dimensions {
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windowHeight: number;
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windowWidth: number;
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}
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interface Props {
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children: React.ReactNode;
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}
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const WindowDimensionsCtx = React.createContext<Dimensions>({ windowHeight: window.innerHeight, windowWidth: window.innerWidth });
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function WindowDimensionsProvider ({ children }: Props): React.ReactElement<Props> {
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const [dimensions, setDimensions] = useState({ windowHeight: window.innerHeight, windowWidth: window.innerWidth });
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useEffect(() => {
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const handleResize = () => setDimensions({ windowHeight: window.innerHeight, windowWidth: window.innerWidth });
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window.addEventListener('resize', handleResize);
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return (): void => {
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window.removeEventListener('resize', handleResize);
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};
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}, []);
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return (
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<WindowDimensionsCtx.Provider value={dimensions}>
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{children}
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</WindowDimensionsCtx.Provider>
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);
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}
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export default React.memo(WindowDimensionsProvider);
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export { WindowDimensionsCtx };
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