21 lines
529 B
TypeScript
21 lines
529 B
TypeScript
import { useState, useCallback, useEffect } from 'react';
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type Theme = 'light' | 'dark';
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export function useTheme() {
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const [theme, setTheme] = useState<Theme>(() => {
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return (localStorage.getItem('theme') as Theme) || 'light';
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});
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useEffect(() => {
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document.documentElement.className = theme;
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localStorage.setItem('theme', theme);
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}, [theme]);
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const toggle = useCallback(() => {
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setTheme((t) => (t === 'dark' ? 'light' : 'dark'));
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}, []);
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return { theme, toggle, isDark: theme === 'dark' };
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}
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