mattermost-mobile/app/context/theme/index.tsx
Elias Nahum fbd8b92194
[Gekidou] Avoid technical debt (#5795)
* Apply Status bar color

* useIsTablet hook instead of useSplitView in combination with the constant

* Constants clean up
2021-10-28 10:15:17 -03:00

104 lines
3.4 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {Q} from '@nozbe/watermelondb';
import withObservables from '@nozbe/with-observables';
import React, {ComponentType, createContext, useEffect} from 'react';
import {Appearance, EventSubscription} from 'react-native';
import {of as of$} from 'rxjs';
import {catchError, switchMap} from 'rxjs/operators';
import {Preferences} from '@constants';
import {MM_TABLES, SYSTEM_IDENTIFIERS} from '@constants/database';
import EphemeralStore from '@store/ephemeral_store';
import {setNavigationStackStyles, setThemeDefaults} from '@utils/theme';
import type {PreferenceModel, SystemModel} from '@database/models/server';
import type Database from '@nozbe/watermelondb/Database';
type Props = {
currentTeamId?: string;
children: React.ReactNode;
themes: PreferenceModel[];
}
type WithThemeProps = {
theme: Theme;
}
const {SERVER: {PREFERENCE, SYSTEM}} = MM_TABLES;
export function getDefaultThemeByAppearance(): Theme {
if (Appearance.getColorScheme() === 'dark') {
return Preferences.THEMES.onyx;
}
return Preferences.THEMES.denim;
}
export const ThemeContext = createContext(getDefaultThemeByAppearance());
const {Consumer, Provider} = ThemeContext;
const ThemeProvider = ({currentTeamId, children, themes}: Props) => {
const getTheme = (): Theme => {
if (currentTeamId) {
const teamTheme = themes.find((t) => t.name === currentTeamId) || themes[0];
if (teamTheme?.value) {
try {
const theme = setThemeDefaults(JSON.parse(teamTheme.value) as Theme);
EphemeralStore.theme = theme;
requestAnimationFrame(() => {
setNavigationStackStyles(theme);
});
return theme;
} catch {
// no theme change
}
}
}
const defaultTheme = getDefaultThemeByAppearance();
EphemeralStore.theme = defaultTheme;
requestAnimationFrame(() => {
setNavigationStackStyles(defaultTheme);
});
return defaultTheme;
};
useEffect(() => {
const listener = Appearance.addChangeListener(getTheme) as EventSubscription;
return () => listener.remove();
}, []);
return (<Provider value={getTheme()}>{children}</Provider>);
};
export function withTheme<T extends WithThemeProps>(Component: ComponentType<T>): ComponentType<T> {
return function ThemeComponent(props) {
return (
<Consumer>
{(theme: Theme) => (
<Component
{...props}
theme={theme}
/>
)}
</Consumer>
);
};
}
export function useTheme(): Theme {
return React.useContext(ThemeContext);
}
const enhancedThemeProvider = withObservables([], ({database}: {database: Database}) => ({
currentTeamId: database.get<SystemModel>(SYSTEM).findAndObserve(SYSTEM_IDENTIFIERS.CURRENT_TEAM_ID).pipe(
switchMap((row) => of$(row.value)),
catchError(() => of$(undefined)),
),
themes: database.get(PREFERENCE).query(Q.where('category', Preferences.CATEGORY_THEME)).observeWithColumns(['value']),
}));
export default enhancedThemeProvider(ThemeProvider);