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May 14, 2021 23:13
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import React, { useContext, useRef } from 'react'; | |
import { ImageStyle, TextStyle, useColorScheme, ViewStyle } from 'react-native'; | |
import { Theme } from 'tint-n-tinge'; | |
import { useSignal } from './hooks'; | |
type PaletteRaw = { | |
primary: string; | |
background: string; | |
text: string; | |
}; | |
const LIGHT_PALETTE: PaletteRaw = { | |
primary: '#9C6', | |
background: '#FFF', | |
text: '#000', | |
}; | |
const DARK_PALETTE: PaletteRaw = { | |
primary: '#9C6', | |
background: '#000', | |
text: '#FFF', | |
}; | |
export const LIGHT_THEME = new Theme(LIGHT_PALETTE); | |
export const DARK_THEME = new Theme(DARK_PALETTE); | |
const THEME_MAP = { | |
light: LIGHT_THEME, | |
dark: DARK_THEME, | |
}; | |
type ThemeAPI = { | |
palette: Theme<PaletteRaw>['palette']; | |
setMode: (mode: 'light' | 'dark') => void; | |
}; | |
const ThemeContext = React.createContext(null as unknown as ThemeAPI); | |
export const ThemeProvider = (props: { | |
children: JSX.Element | JSX.Element[]; | |
}) => { | |
const colorScheme = useColorScheme(); | |
const themeRef = useRef(THEME_MAP[colorScheme ?? 'light']); | |
const signal = useSignal(); | |
const setMode = (mode: 'light' | 'dark') => { | |
themeRef.current = THEME_MAP[mode]; | |
signal(); | |
}; | |
return ( | |
<ThemeContext.Provider | |
value={{ | |
palette: themeRef.current.palette, | |
setMode, | |
}} | |
> | |
{props.children} | |
</ThemeContext.Provider> | |
); | |
}; | |
export const makeStyles = ( | |
styles: (theme: ThemeAPI) => { | |
[key: string]: ViewStyle | TextStyle | ImageStyle | Object; | |
}, | |
) => { | |
return () => { | |
const context = useContext(ThemeContext); | |
return styles(context); | |
}; | |
}; | |
export const useTheme = () => { | |
const context = useContext(ThemeContext); | |
return context; | |
}; |
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