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40 lines
1.3 KiB
JavaScript

import { HiOutlineMoon, HiOutlineSun } from 'react-icons/hi'
import React, { useEffect, useState } from 'react'
export default function DarkSwitch() {
const [isDark, setIsDark] = useState(localStorage.theme ? false : true)
const toggle = () => {
localStorage.theme === 'dark' ? localStorage.setItem('theme', 'light') : localStorage.setItem('theme', 'dark')
setIsDark(!isDark)
}
useEffect(() => {
if (localStorage.getItem('theme') === null ) {
localStorage.setItem('theme', 'dark')
}
}, [])
useEffect(() => {
// On page load or when changing themes, best to add inline in `head` to avoid FOUC
if (
localStorage.theme === 'dark' ||
(!('theme' in localStorage) &&
window.matchMedia('(prefers-color-scheme: dark)').matches)
) {
document.documentElement.classList.add('dark')
} else {
document.documentElement.classList.remove('dark')
}
}, [isDark])
return (
<div onClick={toggle} title="switch to dark mode">
{isDark ? (
<HiOutlineMoon className="w-6 h-6 dark:text-white" />
) : (
<HiOutlineSun className="w-6 h-6 dark:text-white" />
)}
</div>
)
}