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27 lines
633 B
27 lines
633 B
import { useState, useEffect } from "react";
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const hasFocus = () => typeof document !== "undefined" && document.hasFocus();
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const useWindowFocus = () => {
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const [focused, setFocused] = useState(hasFocus);
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useEffect(() => {
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setFocused(hasFocus());
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const onFocus = () => setFocused(true);
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const onBlur = () => setFocused(false);
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window.addEventListener("focus", onFocus);
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window.addEventListener("blur", onBlur);
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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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}, []);
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return focused;
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};
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export default useWindowFocus;
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