File size: 1,249 Bytes
1e92f2d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
import isEqual from 'react-fast-compare';
function getStateWithoutPage(state) {
const { page, ...rest } = state || {};
return rest;
}
const KEY = 'ais.infiniteHits';
function hasSessionStorage() {
return (
typeof window !== 'undefined' &&
typeof window.sessionStorage !== 'undefined'
);
}
export default function createInfiniteHitsSessionStorageCache() {
return {
read({ state }) {
if (!hasSessionStorage()) {
return null;
}
try {
const cache = JSON.parse(window.sessionStorage.getItem(KEY));
return cache && isEqual(cache.state, getStateWithoutPage(state))
? cache.hits
: null;
} catch (error) {
if (error instanceof SyntaxError) {
try {
window.sessionStorage.removeItem(KEY);
} catch (err) {
// do nothing
}
}
return null;
}
},
write({ state, hits }) {
if (!hasSessionStorage()) {
return;
}
try {
window.sessionStorage.setItem(
KEY,
JSON.stringify({
state: getStateWithoutPage(state),
hits,
})
);
} catch (error) {
// do nothing
}
},
};
}
|