- - New ThemeConfigContext provider that fetches theme on app load and applies it to the DOM (title, meta description, favicon, CSS variables,
theme-color)/- - Admin Theme settings page under Settings > Theme tab/- All logo references (5 components) now pull from the theme config with fallback to default
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src/context/ThemeConfigContext.js
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161
src/context/ThemeConfigContext.js
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import React, { createContext, useState, useContext, useEffect, useCallback } from 'react';
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import axios from 'axios';
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const ThemeConfigContext = createContext();
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const API_URL = process.env.REACT_APP_BACKEND_URL || window.location.origin;
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const DEFAULT_THEME = {
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site_name: 'LOAF - Lesbians Over Age Fifty',
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site_short_name: 'LOAF',
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site_description: 'A community organization for lesbians over age fifty in Houston and surrounding areas.',
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logo_url: null,
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favicon_url: null,
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colors: {
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primary: '280 47% 27%',
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primary_foreground: '0 0% 100%',
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accent: '24 86% 55%',
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brand_purple: '256 35% 47%',
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brand_orange: '24 86% 55%',
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brand_lavender: '262 46% 80%'
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},
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meta_theme_color: '#664fa3'
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};
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export const ThemeConfigProvider = ({ children }) => {
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const [themeConfig, setThemeConfig] = useState(DEFAULT_THEME);
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const [loading, setLoading] = useState(true);
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const [error, setError] = useState(null);
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const applyThemeToDOM = useCallback((config) => {
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// Apply CSS variables for colors
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if (config.colors) {
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const root = document.documentElement;
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Object.entries(config.colors).forEach(([key, value]) => {
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// Convert snake_case to kebab-case for CSS variable names
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const cssVarName = `--${key.replace(/_/g, '-')}`;
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root.style.setProperty(cssVarName, value);
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});
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}
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// Update favicon
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if (config.favicon_url) {
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let link = document.querySelector("link[rel*='icon']");
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if (!link) {
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link = document.createElement('link');
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link.rel = 'icon';
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document.head.appendChild(link);
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}
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link.href = config.favicon_url;
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}
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// Update document title
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if (config.site_name) {
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document.title = config.site_name;
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// Also store for use by pages that want to append their own title
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window.__SITE_NAME__ = config.site_name;
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}
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// Update meta description
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if (config.site_description) {
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let metaDesc = document.querySelector("meta[name='description']");
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if (!metaDesc) {
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metaDesc = document.createElement('meta');
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metaDesc.name = 'description';
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document.head.appendChild(metaDesc);
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}
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metaDesc.content = config.site_description;
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}
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// Update meta theme-color for PWA
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if (config.meta_theme_color) {
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let meta = document.querySelector("meta[name='theme-color']");
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if (!meta) {
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meta = document.createElement('meta');
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meta.name = 'theme-color';
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document.head.appendChild(meta);
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}
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meta.content = config.meta_theme_color;
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}
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}, []);
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const fetchThemeConfig = useCallback(async () => {
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try {
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setLoading(true);
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setError(null);
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const response = await axios.get(`${API_URL}/api/config/theme`);
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const config = { ...DEFAULT_THEME, ...response.data };
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// Merge colors if provided
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if (response.data.colors) {
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config.colors = { ...DEFAULT_THEME.colors, ...response.data.colors };
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}
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setThemeConfig(config);
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applyThemeToDOM(config);
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} catch (err) {
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console.warn('Failed to fetch theme config, using defaults:', err.message);
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setError(err.message);
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// Apply default theme to DOM
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applyThemeToDOM(DEFAULT_THEME);
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} finally {
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setLoading(false);
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}
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}, [applyThemeToDOM]);
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// Fetch theme config on mount
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useEffect(() => {
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fetchThemeConfig();
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}, [fetchThemeConfig]);
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// Helper function to get logo URL with fallback
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const getLogoUrl = useCallback(() => {
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return themeConfig.logo_url || `${process.env.PUBLIC_URL}/loaf-logo.png`;
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}, [themeConfig.logo_url]);
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// Helper function to get favicon URL with fallback
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const getFaviconUrl = useCallback(() => {
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return themeConfig.favicon_url || `${process.env.PUBLIC_URL}/favicon.ico`;
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}, [themeConfig.favicon_url]);
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const value = {
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// Theme configuration
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themeConfig,
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loading,
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error,
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// Convenience accessors
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siteName: themeConfig.site_name,
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siteShortName: themeConfig.site_short_name,
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siteDescription: themeConfig.site_description,
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colors: themeConfig.colors,
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metaThemeColor: themeConfig.meta_theme_color,
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// Helper functions
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getLogoUrl,
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getFaviconUrl,
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// Actions
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refreshTheme: fetchThemeConfig,
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// Default theme for reference
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DEFAULT_THEME
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};
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return (
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<ThemeConfigContext.Provider value={value}>
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{children}
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</ThemeConfigContext.Provider>
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);
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};
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export const useThemeConfig = () => {
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const context = useContext(ThemeConfigContext);
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if (context === undefined) {
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throw new Error('useThemeConfig must be used within a ThemeConfigProvider');
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}
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return context;
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};
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export default ThemeConfigContext;
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