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umami/hooks/useTheme.js
2021-04-28 02:18:54 -07:00

28 lines
791 B
JavaScript

import { useDispatch, useSelector } from 'react-redux';
import { setTheme } from 'redux/actions/app';
import { getItem, setItem } from 'lib/web';
import { THEME_CONFIG } from 'lib/constants';
import { useEffect } from 'react';
export default function useTheme() {
const defaultTheme =
typeof window !== 'undefined'
? window?.matchMedia('prefers-color-scheme: dark')?.matches
? 'dark'
: 'light'
: 'light';
const theme = useSelector(state => state.app.theme || getItem(THEME_CONFIG) || defaultTheme);
const dispatch = useDispatch();
function saveTheme(value) {
setItem(THEME_CONFIG, value);
dispatch(setTheme(value));
}
useEffect(() => {
document.body.setAttribute('data-theme', theme);
}, [theme]);
return [theme, saveTheme];
}