27 lines
599 B
TypeScript
27 lines
599 B
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { useEffect, useState } from 'react';
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export function useIsOnline(): boolean {
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const [isOnline, setIsOnline] = useState(navigator.onLine);
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useEffect(() => {
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const update = () => {
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setIsOnline(navigator.onLine);
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};
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update();
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window.addEventListener('offline', update);
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window.addEventListener('online', update);
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return () => {
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window.removeEventListener('offline', update);
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window.removeEventListener('online', update);
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};
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}, []);
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return isOnline;
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}
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