21 lines
456 B
TypeScript
21 lines
456 B
TypeScript
import { useEffect } from '../lib/teact/teact';
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export default (
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onBlur: AnyToVoidFunction,
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onFocus: AnyToVoidFunction,
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) => {
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useEffect(() => {
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if (!document.hasFocus()) {
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onBlur();
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}
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window.addEventListener('blur', onBlur);
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window.addEventListener('focus', onFocus);
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return () => {
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window.removeEventListener('focus', onFocus);
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window.removeEventListener('blur', onBlur);
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};
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}, [onBlur, onFocus]);
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};
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