Perplexica/ui/components/theme/Switcher.tsx
2024-07-05 14:36:50 +08:00

59 lines
1.5 KiB
TypeScript

"use client";
import { useTheme } from "next-themes";
import { SunIcon, MoonIcon, MonitorIcon } from "lucide-react";
import { useCallback, useEffect, useState } from "react";
import { Select } from "../SettingsDialog";
type Theme = "dark" | "light" | "system";
const ThemeSwitcher = ({ className }: { className?: string }) => {
const [mounted, setMounted] = useState(false);
const { theme, setTheme } = useTheme();
const isTheme = useCallback((t: Theme) => t === theme, [theme]);
const handleThemeSwitch = (theme: Theme) => {
setTheme(theme);
};
useEffect(() => {
setMounted(true);
}, []);
useEffect(() => {
if (isTheme("system")) {
const preferDarkScheme = window.matchMedia("(prefers-color-scheme: dark)");
const detectThemeChange = (event: MediaQueryListEvent) => {
const theme: Theme = event.matches ? "dark" : "light";
setTheme(theme);
};
preferDarkScheme.addEventListener("change", detectThemeChange);
return () => {
preferDarkScheme.removeEventListener("change", detectThemeChange);
};
}
}, [isTheme, setTheme, theme]);
// Avoid Hydration Mismatch
if (!mounted) {
return null;
}
return (
<Select
className={className}
value={theme}
onChange={e => handleThemeSwitch(e.target.value as Theme)}
options={[
{ value: "light", label: "Light" },
{ value: "dark", label: "Dark" },
]}
/>
);
};
export default ThemeSwitcher;