23 lines
606 B
TypeScript
23 lines
606 B
TypeScript
// Copyright 2022 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 useIsWindowActive(): boolean {
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const { activeWindowService } = window.SignalContext;
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const [isActive, setIsActive] = useState(activeWindowService.isActive());
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useEffect(() => {
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const update = (newIsActive: boolean): void => {
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setIsActive(newIsActive);
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};
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activeWindowService.registerForChange(update);
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return () => {
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activeWindowService.unregisterForChange(update);
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};
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}, [activeWindowService]);
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return isActive;
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}
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