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Diffstat (limited to 'src/ThemeContext.tsx')
| -rw-r--r-- | src/ThemeContext.tsx | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/ThemeContext.tsx b/src/ThemeContext.tsx new file mode 100644 index 0000000..203b70a --- /dev/null +++ b/src/ThemeContext.tsx @@ -0,0 +1,44 @@ +import { createContext, useContext, useEffect, useState, ReactNode } from 'react'; + +type Theme = 'light' | 'dark'; + +interface ThemeContextProps { + theme: Theme; + toggleTheme: () => void; +} + +const ThemeContext = createContext<ThemeContextProps | undefined>(undefined); + +export const ThemeProvider = ({ children }: { children: ReactNode }) => { + const [theme, setTheme] = useState<Theme>(() => { + const savedTheme = localStorage.getItem('theme'); + if (savedTheme) { + return savedTheme as Theme; + } + const prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches; + return prefersDark ? 'dark' : 'light'; + }); + + useEffect(() => { + document.documentElement.setAttribute('data-theme', theme); + localStorage.setItem('theme', theme); + }, [theme]); + + const toggleTheme = () => { + setTheme((prevTheme) => (prevTheme === 'light' ? 'dark' : 'light')); + }; + + return ( + <ThemeContext.Provider value={{ theme, toggleTheme }}> + {children} + </ThemeContext.Provider> + ); +}; + +export const useTheme = () => { + const context = useContext(ThemeContext); + if (!context) { + throw new Error('useTheme must be used within a ThemeProvider'); + } + return context; +};
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