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react hooks
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/** | |
* @info React hook that keeps up to date with the current location. | |
*/ | |
import { useState, useEffect } from 'react' | |
function getCurrentLocation() { | |
return { | |
pathname: window.location.pathname, | |
search: window.location.search | |
} | |
} | |
/** | |
* @type {Array<() => void>} | |
*/ | |
const listeners = [] | |
/** | |
* Notifies all location listeners. | |
* Can be used if the history state has been manipulated in by another module. | |
* Effectifely, all components using the 'useLocation' hook will update. | |
*/ | |
export function notify() { | |
listeners.forEach(listener => listener()) | |
} | |
export function useLocation() { | |
const [{ pathname, search }, setLocation] = useState(getCurrentLocation()) | |
useEffect(() => { | |
window.addEventListener('popstate', handleChange) | |
return () => window.removeEventListener('popstate', handleChange) | |
}, []) | |
useEffect(() => { | |
listeners.push(handleChange) | |
return () => listeners.splice(listeners.indexOf(handleChange), 1) | |
}, []) | |
function handleChange() { | |
setLocation(getCurrentLocation()) | |
} | |
/** | |
* @param {string} url | |
*/ | |
function push(url) { | |
window.history.pushState(null, null, url) | |
notify() | |
} | |
/** | |
* @param {string} url | |
*/ | |
function replace(url) { | |
window.history.replaceState(null, null, url) | |
notify() | |
} | |
return { | |
push, | |
replace, | |
pathname, | |
search | |
} | |
} | |
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