51 lines
1.2 KiB
TypeScript
51 lines
1.2 KiB
TypeScript
import { createContext, useEffect, useState } from "react";
|
|
|
|
interface Props {
|
|
children: React.ReactNode;
|
|
defaultTheme?: Theme;
|
|
storageKey?: string;
|
|
}
|
|
|
|
interface Context {
|
|
theme: Theme;
|
|
isDark: boolean;
|
|
setTheme: (theme: Theme) => void;
|
|
}
|
|
|
|
export const ThemeContext = createContext<Context>({} as Context);
|
|
|
|
export function ThemeProvider({ children, defaultTheme = "system", storageKey = "vite-ui-theme", ...props }: Props) {
|
|
const [theme, setTheme] = useState<Theme>(() => (localStorage.getItem(storageKey) as Theme) || defaultTheme);
|
|
const [isDark, setIsDark] = useState(true);
|
|
|
|
useEffect(() => {
|
|
const root = window.document.documentElement;
|
|
|
|
root.classList.remove("light", "dark");
|
|
|
|
if (theme === "system") {
|
|
const systemTheme = window.matchMedia("(prefers-color-scheme: dark)").matches;
|
|
|
|
root.classList.add(systemTheme ? "dark" : "light");
|
|
return;
|
|
}
|
|
|
|
root.classList.add(theme);
|
|
setIsDark(theme == "dark");
|
|
}, [theme]);
|
|
|
|
const value = {
|
|
theme,
|
|
isDark,
|
|
setTheme: (theme: Theme) => {
|
|
localStorage.setItem(storageKey, theme);
|
|
setTheme(theme);
|
|
},
|
|
};
|
|
|
|
return (
|
|
<ThemeContext.Provider {...props} value={value}>
|
|
{children}
|
|
</ThemeContext.Provider>
|
|
);
|
|
}
|