| 1 |
import { useEffect } from '@wordpress/element' |
| 2 |
|
| 3 |
export const useWarnOnLeave = (enabled = true) => { |
| 4 |
// Display warning alert if user tries to exit |
| 5 |
useEffect(() => { |
| 6 |
if (!enabled) return |
| 7 |
const handleUnload = (event) => { |
| 8 |
event.preventDefault() |
| 9 |
return (event.returnValue = '') |
| 10 |
} |
| 11 |
const opts = { capture: true } |
| 12 |
window.addEventListener('beforeunload', handleUnload, opts) |
| 13 |
return () => { |
| 14 |
window.removeEventListener('beforeunload', handleUnload, opts) |
| 15 |
} |
| 16 |
}, [enabled]) |
| 17 |
} |
| 18 |
|
