Extract theme context logic into its own provider

src/modules/theme/components/ThemePreview.tsx

@@ -19,7 +19,7 @@ import IconButton from '@mui/material/IconButton';
 import Tooltip from '@mui/material/Tooltip';
 import EditIcon from '@mui/icons-material/Edit';
 import { bindDialog, usePopupState } from 'material-ui-popup-state/hooks';
-import { ThemeModeContext } from '@/modules/theme/contexts/ThemeModeContext.tsx';
+import { AppThemeContext } from '@/modules/theme/contexts/AppThemeContext.tsx';
 import { AppTheme, hasMissingFonts, loadThemeFonts } from '@/modules/theme/services/AppThemes.ts';
 import { createTheme } from '@/modules/theme/services/ThemeCreator.ts';
 import { ThemeCreationDialog } from '@/modules/theme/components/CreateThemeDialog.tsx';
@@ -37,7 +37,7 @@ export const ThemePreview = ({ appTheme, onDelete }: { appTheme: AppTheme; onDel
 
     const { t } = useTranslation();
     const theme = useTheme();
-    const { themeMode, setAppTheme, appTheme: activeAppTheme, pureBlackMode } = useContext(ThemeModeContext);
+    const { themeMode, setAppTheme, appTheme: activeAppTheme, pureBlackMode } = useContext(AppThemeContext);
 
     const popupState = usePopupState({ variant: 'popover', popupId: `theme-edit-dialog-${appTheme.id}` });
 

src/modules/theme/contexts/AppThemeContext.tsx

@@ -15,7 +15,7 @@ export enum ThemeMode {
     LIGHT = 'light',
 }
 
-type ThemeModeContextType = {
+export type TAppThemeContext = {
     appTheme: AppThemes;
     setAppTheme: React.Dispatch<React.SetStateAction<AppThemes>>;
     themeMode: ThemeMode;
@@ -24,7 +24,7 @@ type ThemeModeContextType = {
     setPureBlackMode: React.Dispatch<React.SetStateAction<boolean>>;
 };
 
-export const ThemeModeContext = React.createContext<ThemeModeContextType>({
+export const AppThemeContext = React.createContext<TAppThemeContext>({
     appTheme: 'default',
     setAppTheme: (): void => {},
     themeMode: ThemeMode.SYSTEM,

src/modules/theme/contexts/AppThemeContextProvider.tsx

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import { ReactNode, useLayoutEffect, useMemo, useRef, useState } from 'react';
+import { Direction, ThemeProvider, useColorScheme } from '@mui/material/styles';
+import { CacheProvider } from '@emotion/react';
+import { useTranslation } from 'react-i18next';
+import { AppThemeContext, ThemeMode } from '@/modules/theme/contexts/AppThemeContext.tsx';
+import { DIRECTION_TO_CACHE } from '@/modules/theme/ThemeDirectionCache.ts';
+import { useMetadataServerSettings } from '@/modules/settings/services/ServerSettingsMetadata.ts';
+import { MediaQuery } from '@/modules/core/utils/MediaQuery.tsx';
+import { useLocalStorage } from '@/modules/core/hooks/useStorage.tsx';
+import { AppThemes, getTheme } from '@/modules/theme/services/AppThemes.ts';
+import { createAndSetTheme } from '@/modules/theme/services/ThemeCreator.ts';
+
+export const AppThemeContextProvider = ({ children }: { children: ReactNode }) => {
+    const { i18n } = useTranslation();
+    const { mode } = useColorScheme();
+    const {
+        settings: { customThemes },
+    } = useMetadataServerSettings();
+    const [appTheme, setAppTheme] = useLocalStorage<AppThemes>('appTheme', 'default');
+    const [themeMode, setThemeMode] = useLocalStorage<ThemeMode>('themeMode', ThemeMode.SYSTEM);
+    const [pureBlackMode, setPureBlackMode] = useLocalStorage<boolean>('pureBlackMode', false);
+
+    const directionRef = useRef<Direction>('ltr');
+
+    const [systemThemeMode, setSystemThemeMode] = useState<ThemeMode>(MediaQuery.getSystemThemeMode());
+
+    const actualThemeMode = mode ?? themeMode ?? 'dark';
+    const currentDirection = i18n.dir();
+
+    const appThemeContext = useMemo(
+        () => ({
+            appTheme,
+            setAppTheme,
+            themeMode,
+            setThemeMode,
+            pureBlackMode,
+            setPureBlackMode,
+        }),
+        [themeMode, pureBlackMode, appTheme],
+    );
+
+    const theme = useMemo(
+        () =>
+            createAndSetTheme(
+                actualThemeMode as ThemeMode,
+                getTheme(appTheme, customThemes),
+                pureBlackMode,
+                currentDirection,
+            ),
+        [actualThemeMode, currentDirection, systemThemeMode, pureBlackMode, appTheme, customThemes],
+    );
+
+    useLayoutEffect(() => {
+        const unsubscribe = MediaQuery.listenToSystemThemeChange(setSystemThemeMode);
+
+        return () => unsubscribe();
+    }, []);
+
+    if (directionRef.current !== currentDirection) {
+        document.dir = currentDirection;
+        directionRef.current = currentDirection;
+    }
+
+    return (
+        <AppThemeContext.Provider value={appThemeContext}>
+            <CacheProvider value={DIRECTION_TO_CACHE[currentDirection]}>
+                <ThemeProvider theme={theme}>{children}</ThemeProvider>
+            </CacheProvider>
+        </AppThemeContext.Provider>
+    );
+};

src/modules/theme/services/ThemeCreator.ts

@@ -21,7 +21,7 @@ import { useCallback } from 'react';
 import { deepmerge } from '@mui/utils';
 // eslint-disable-next-line no-restricted-imports
 import { PaletteBackgroundChannel } from '@mui/material/styles/createThemeWithVars';
-import { ThemeMode } from '@/modules/theme/contexts/ThemeModeContext.tsx';
+import { ThemeMode } from '@/modules/theme/contexts/AppThemeContext.tsx';
 import { MediaQuery } from '@/modules/core/utils/MediaQuery.tsx';
 import { AppTheme, loadThemeFonts } from '@/modules/theme/services/AppThemes.ts';
 import { defaultPromiseErrorHandler } from '@/lib/DefaultPromiseErrorHandler.ts';
@@ -29,15 +29,9 @@ import { applyStyles } from '@/modules/core/utils/ApplyStyles.ts';
 
 const SCROLLBAR_SIZE = 14;
 
-declare module '@mui/material/styles' {
-    interface CssThemeVariables {
-        enabled: true;
-    }
-}
-
 const getBackgroundColor = (
     type: 'light' | 'dark',
-    appTheme: AppTheme,
+    appTheme: AppTheme['muiTheme'],
     theme: Theme,
     setPureBlackMode: boolean = false,
 ): (Partial<TypeBackground> & Partial<PaletteBackgroundChannel>) | undefined => {
@@ -49,11 +43,8 @@ const getBackgroundColor = (
     }
 
     if (type === 'light' && !!theme.colorSchemes.light) {
-        if (
-            typeof appTheme.muiTheme.colorSchemes?.light === 'object' &&
-            appTheme.muiTheme.colorSchemes.light.palette?.background
-        ) {
-            return appTheme.muiTheme.colorSchemes.light.palette.background;
+        if (typeof appTheme.colorSchemes?.light === 'object' && appTheme.colorSchemes.light.palette?.background) {
+            return appTheme.colorSchemes.light.palette.background;
         }
 
         return {
@@ -63,11 +54,8 @@ const getBackgroundColor = (
     }
 
     if (type === 'dark' && !!theme.colorSchemes.dark) {
-        if (
-            typeof appTheme.muiTheme.colorSchemes?.dark === 'object' &&
-            appTheme.muiTheme.colorSchemes.dark.palette?.background
-        ) {
-            return appTheme.muiTheme.colorSchemes.dark.palette.background;
+        if (typeof appTheme.colorSchemes?.dark === 'object' && appTheme.colorSchemes.dark.palette?.background) {
+            return appTheme.colorSchemes.dark.palette.background;
         }
 
         return {
@@ -84,6 +72,7 @@ export const createTheme = (
     appTheme: AppTheme,
     pureBlackMode: boolean = false,
     direction: Direction = 'ltr',
+    dynamicColor: string | null = null,
 ) => {
     const systemMode = MediaQuery.getSystemThemeMode();
 
@@ -91,6 +80,13 @@ export const createTheme = (
     const isDarkMode = mode === ThemeMode.DARK;
     const setPureBlackMode = isDarkMode && pureBlackMode;
 
+    const themeDynamicColor = {
+        ...appTheme.muiTheme,
+        light: { palette: { primary: { main: dynamicColor } } },
+        dark: { palette: { primary: { main: dynamicColor } } },
+    };
+    const themeFinalColor = dynamicColor ? themeDynamicColor : appTheme.muiTheme;
+
     const themeForColors = createMuiTheme({ ...appTheme.muiTheme, defaultColorScheme: mode });
 
     const suwayomiTheme = createMuiTheme(
@@ -101,14 +97,14 @@ export const createTheme = (
                 light: appTheme.muiTheme.colorSchemes?.light
                     ? {
                           palette: {
-                              background: getBackgroundColor('light', appTheme, themeForColors),
+                              background: getBackgroundColor('light', themeFinalColor, themeForColors),
                           },
                       }
                     : undefined,
                 dark: appTheme.muiTheme.colorSchemes?.dark
                     ? {
                           palette: {
-                              background: getBackgroundColor('dark', appTheme, themeForColors, setPureBlackMode),
+                              background: getBackgroundColor('dark', themeFinalColor, themeForColors, setPureBlackMode),
                           },
                       }
                     : undefined,