Files
bichon/web/src/hooks/use-mobile.tsx
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2025-11-19 02:14:37 +08:00

39 lines
1.3 KiB
TypeScript

//
// Copyright (c) 2025 rustmailer.com (https://rustmailer.com)
//
// This file is part of the Bichon Email Archiving Project
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
import * as React from 'react'
const MOBILE_BREAKPOINT = 768
export function useIsMobile() {
const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined)
React.useEffect(() => {
const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
const onChange = () => {
setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
}
mql.addEventListener('change', onChange)
setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
return () => mql.removeEventListener('change', onChange)
}, [])
return !!isMobile
}