Brandon Presley
31f1528c35
The settings context was having a big performance impact on the app. We only truly need the theme + color to be a global context.
120 lines
3.2 KiB
TypeScript
120 lines
3.2 KiB
TypeScript
import {
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DarkTheme as NavigationDarkTheme,
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DefaultTheme as NavigationDefaultTheme,
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NavigationContainer,
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} from '@react-navigation/native'
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import {useEffect, useMemo, useState} from 'react'
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import {DeviceEventEmitter, useColorScheme} from 'react-native'
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import {
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DarkTheme as PaperDarkTheme,
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DefaultTheme as PaperDefaultTheme,
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Provider as PaperProvider,
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Snackbar,
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} from 'react-native-paper'
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import MaterialIcon from 'react-native-vector-icons/MaterialIcons'
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import {lightColors} from './colors'
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import {AppDataSource} from './data-source'
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import {settingsRepo} from './db'
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import Routes from './Routes'
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import {TOAST} from './toast'
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import {ThemeContext} from './use-theme'
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export const CombinedDefaultTheme = {
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...NavigationDefaultTheme,
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...PaperDefaultTheme,
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colors: {
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...NavigationDefaultTheme.colors,
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...PaperDefaultTheme.colors,
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},
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}
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export const CombinedDarkTheme = {
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...NavigationDarkTheme,
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...PaperDarkTheme,
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colors: {
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...NavigationDarkTheme.colors,
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...PaperDarkTheme.colors,
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primary: lightColors[0].hex,
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background: '#0E0E0E',
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},
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}
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const App = () => {
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const isDark = useColorScheme() === 'dark'
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const [initialized, setInitialized] = useState(false)
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const [snackbar, setSnackbar] = useState('')
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const [theme, setTheme] = useState('system')
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const [color, setColor] = useState<string>(
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isDark
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? CombinedDarkTheme.colors.primary
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: CombinedDefaultTheme.colors.primary,
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)
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useEffect(() => {
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AppDataSource.initialize().then(async () => {
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const settings = await settingsRepo.findOne({where: {}})
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console.log(`${App.name}.useEffect:`, {gotSettings: settings})
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setTheme(settings.theme)
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setColor(settings.color)
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setInitialized(true)
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})
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DeviceEventEmitter.addListener(TOAST, ({value}: {value: string}) => {
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console.log(`${Routes.name}.toast:`, {value})
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setSnackbar(value)
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})
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}, [])
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const paperTheme = useMemo(() => {
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const darkTheme = color
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? {
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...CombinedDarkTheme,
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colors: {...CombinedDarkTheme.colors, primary: color},
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}
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: CombinedDarkTheme
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const lightTheme = color
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? {
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...CombinedDefaultTheme,
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colors: {...CombinedDefaultTheme.colors, primary: color},
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}
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: CombinedDefaultTheme
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let value = isDark ? darkTheme : lightTheme
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if (theme === 'dark') value = darkTheme
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else if (theme === 'light') value = lightTheme
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return value
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}, [isDark, theme, color])
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const action = useMemo(
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() => ({
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label: 'Close',
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onPress: () => setSnackbar(''),
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color: paperTheme.colors.primary,
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}),
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[paperTheme.colors.primary],
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)
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return (
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<PaperProvider
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theme={paperTheme}
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settings={{icon: props => <MaterialIcon {...props} />}}>
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<NavigationContainer theme={paperTheme}>
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{initialized && (
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<ThemeContext.Provider value={{theme, setTheme, color, setColor}}>
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<Routes />
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</ThemeContext.Provider>
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)}
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</NavigationContainer>
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<Snackbar
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duration={3000}
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onDismiss={() => setSnackbar('')}
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visible={!!snackbar}
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action={action}>
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{snackbar}
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</Snackbar>
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</PaperProvider>
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)
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}
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export default App
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