41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
import { useEffect, useState } from "react";
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export function useMediaQuery(query: string): boolean {
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const media = window.matchMedia(query);
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const [ matches, setMatches ] = useState(media.matches);
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useEffect(() => {
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const listener = (evt: MediaQueryListEvent) => {
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setMatches(evt.matches);
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};
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media.addListener(listener);
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return () => {media.removeListener(listener)}
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}, []);
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return matches;
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}
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export function usePrintMediaQuery(): boolean {
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const isMediaQueryPrint = useMediaQuery("print");
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const [ isPrint, setIsPrint ] = useState(false);
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// Firefox/IE compatibility layer
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useEffect(() => {
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const beforePrint = () => {
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setIsPrint(true);
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};
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const afterPrint = () => {
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setIsPrint(false);
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};
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window.addEventListener('beforeprint', beforePrint);
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window.addEventListener('afterprint', afterPrint);
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return () => {
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window.removeEventListener('beforeprint', beforePrint);
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window.removeEventListener('afterprint', afterPrint);
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};
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}, []);
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return isMediaQueryPrint || isPrint;
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} |