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feat: Add dark/light mode theme switching with dynamic favicons

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Implemented comprehensive dark/light mode support throughout the app:

- Added ColorSchemeScript to layout for auto-detection of system preference
- Updated MantineProvider to use 'auto' color scheme (respects system)
- Updated theme.ts with dynamic Paper component styles based on color scheme
- Created ThemeToggle component with sun/moon icons
- Added toggle to desktop sidebar navigation
- Created theme-specific favicons (favicon-light.svg, favicon-dark.svg)
- Made ThoughtGalaxy 3D visualization theme-aware:
  - Dynamic node colors based on theme
  - Theme-aware lighting intensity
  - Theme-aware link colors
  - Theme-aware text labels
- Added comprehensive Playwright tests for theme functionality
- Theme preference persists via localStorage

Tested manually with Playwright MCP:
- ✅ Theme toggle switches between light and dark modes
- ✅ Theme persists across page reloads
- ✅ Both modes render correctly with appropriate colors
- ✅ Icons change based on current theme (sun/moon)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Albert
2025-11-09 22:04:26 +00:00
parent 482ec9fff8
commit 9bf16fefaf
8 changed files with 222 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
app/layout.tsx
View File

@@ -32,15 +32,26 @@ export default function RootLayout({
return (
<html lang="en" suppressHydrationWarning>
<head>
{/* Enforce dark scheme as per our theme */}
<ColorSchemeScript defaultColorScheme="dark" />
{/* Auto-detect system preference for color scheme */}
<ColorSchemeScript defaultColorScheme="auto" />
{/* Dynamic favicons based on theme */}
<link
rel="icon"
href="/favicon-light.svg"
media="(prefers-color-scheme: light)"
/>
<link
rel="icon"
href="/favicon-dark.svg"
media="(prefers-color-scheme: dark)"
/>
{/* Load Zalando Sans from Google Fonts */}
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossOrigin="anonymous" />
<link href="https://fonts.googleapis.com/css2?family=Zalando+Sans:wght@400;500;600;700&display=swap" rel="stylesheet" />
</head>
<body className={forum.variable} suppressHydrationWarning>
<MantineProvider theme={theme} defaultColorScheme="dark">
<MantineProvider theme={theme} defaultColorScheme="auto">
<Notifications />
<AppLayout>{children}</AppLayout>
</MantineProvider>

12
app/theme.ts
View File

@@ -56,12 +56,16 @@ export const theme = createTheme({
radius: 'md',
withBorder: true,
},
styles: {
styles: (theme) => ({
root: {
backgroundColor: '#212529', // gray.8
borderColor: '#495057', // gray.6
backgroundColor: theme.colorScheme === 'dark'
? theme.colors.dark[7]
: theme.white,
borderColor: theme.colorScheme === 'dark'
? theme.colors.dark[5]
: theme.colors.gray[3],
},
},
}),
},
TextInput: {
defaultProps: {

4
components/Navigation/DesktopSidebar.tsx
View File

@@ -13,6 +13,7 @@ import { IconMessageCircle, IconEdit, IconChartBubbleFilled } from '@tabler/icon
import { useSelector } from '@xstate/react';
import { useAppMachine } from '@/hooks/useAppMachine';
import { UserMenu } from '@/components/UserMenu';
import { ThemeToggle } from '@/components/ThemeToggle';
export function DesktopSidebar() {
const actor = useAppMachine();
@@ -111,6 +112,9 @@ export function DesktopSidebar() {
<Divider my="md" color="#373A40" />
{/* Theme Toggle */}
<ThemeToggle />
{/* User Menu - styled like other nav items */}
<UserMenu showLabel={true} />

35
components/ThemeToggle.tsx Normal file
View File

@@ -0,0 +1,35 @@
'use client';
import { ActionIcon, useMantineColorScheme, useComputedColorScheme } from '@mantine/core';
import { IconSun, IconMoon } from '@tabler/icons-react';
/**
* ThemeToggle Component
*
* Toggles between light and dark color schemes.
* Uses Mantine's built-in color scheme hooks for state management and persistence.
*/
export function ThemeToggle() {
const { setColorScheme } = useMantineColorScheme();
const computedColorScheme = useComputedColorScheme('light');
const toggleColorScheme = () => {
setColorScheme(computedColorScheme === 'dark' ? 'light' : 'dark');
};
return (
<ActionIcon
onClick={toggleColorScheme}
variant="subtle"
size="lg"
aria-label="Toggle color scheme"
title={`Switch to ${computedColorScheme === 'dark' ? 'light' : 'dark'} mode`}
>
{computedColorScheme === 'dark' ? (
<IconSun size={20} />
) : (
<IconMoon size={20} />
)}
</ActionIcon>
);
}

30
components/ThoughtGalaxy.tsx
View File

@@ -7,7 +7,7 @@ import {
Text,
} from '@react-three/drei';
import { Suspense, useEffect, useRef, useState } from 'react';
import { Stack, Text as MantineText, Paper, Title, Box, CloseButton, Group, Anchor } from '@mantine/core';
import { Stack, Text as MantineText, Paper, Title, Box, CloseButton, Group, Anchor, useComputedColorScheme } from '@mantine/core';
import { useRouter, usePathname, useSearchParams } from 'next/navigation';
import * as THREE from 'three';
@@ -30,17 +30,24 @@ interface LinkData {
function Node({
node,
isFocused,
onNodeClick
onNodeClick,
isDark
}: {
node: NodeData;
isFocused: boolean;
onNodeClick: (node: NodeData) => void;
isDark: boolean;
}) {
const [hovered, setHovered] = useState(false);
const isExpanded = isFocused || hovered;
const scale = isFocused ? 2.5 : 1;
// Theme-aware colors
const nodeColor = isDark ? '#e9ecef' : '#495057';
const focusColor = '#4dabf7';
const hoverColor = '#90c0ff';
return (
<mesh
position={node.coords_3d}
@@ -57,8 +64,8 @@ function Node({
>
<sphereGeometry args={[0.1, 32, 32]} />
<meshStandardMaterial
color={isFocused ? '#4dabf7' : (hovered ? '#90c0ff' : '#e9ecef')}
emissive={isFocused ? '#4dabf7' : (hovered ? '#90c0ff' : '#e9ecef')}
color={isFocused ? focusColor : (hovered ? hoverColor : nodeColor)}
emissive={isFocused ? focusColor : (hovered ? hoverColor : nodeColor)}
emissiveIntensity={isFocused ? 0.8 : (hovered ? 0.5 : 0.1)}
/>
{/* Show title on hover or focus */}
@@ -66,7 +73,7 @@ function Node({
<Text
position={[0, 0.3 / scale, 0]}
fontSize={0.1 / scale}
color="white"
color={isDark ? 'white' : 'black'}
anchorX="center"
anchorY="middle"
>
@@ -82,6 +89,9 @@ export function ThoughtGalaxy() {
const router = useRouter();
const pathname = usePathname();
const searchParams = useSearchParams();
const colorScheme = useComputedColorScheme('light');
const isDark = colorScheme === 'dark';
const [nodes, setNodes] = useState<NodeData[]>([]);
const [links, setLinks] = useState<LinkData[]>([]);
const [selectedNode, setSelectedNode] = useState<NodeData | null>(null);
@@ -353,8 +363,9 @@ export function ThoughtGalaxy() {
}
}}
>
<ambientLight intensity={0.5} />
<pointLight position={[10, 10, 10]} intensity={1} />
{/* Theme-aware lighting */}
<ambientLight intensity={isDark ? 0.3 : 0.5} />
<pointLight position={[10, 10, 10]} intensity={isDark ? 0.8 : 1} />
<CameraControls ref={cameraControlsRef} />
<Suspense fallback={null}>
@@ -366,15 +377,16 @@ export function ThoughtGalaxy() {
node={node}
isFocused={selectedNodeId === node.id || selectedNode?.id === node.id}
onNodeClick={handleNodeClick}
isDark={isDark}
/>
))}
{/* Render all links */}
{/* Render all links - theme-aware colors */}
{linkLines.map((line, i) => (
<Line
key={i}
points={[line.start, line.end]}
color="#495057" // gray
color={isDark ? '#495057' : '#adb5bd'}
lineWidth={1}
/>
))}

7
public/favicon-dark.svg Normal file
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@@ -0,0 +1,7 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
<!-- Light icon for dark mode -->
<circle cx="50" cy="50" r="40" fill="#f8f9fa" />
<circle cx="35" cy="45" r="5" fill="#212529" />
<circle cx="65" cy="45" r="5" fill="#212529" />
<path d="M 30 65 Q 50 75 70 65" stroke="#212529" stroke-width="3" fill="none" />
</svg>
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After

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7
public/favicon-light.svg Normal file
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@@ -0,0 +1,7 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
<!-- Dark icon for light mode -->
<circle cx="50" cy="50" r="40" fill="#212529" />
<circle cx="35" cy="45" r="5" fill="#ffffff" />
<circle cx="65" cy="45" r="5" fill="#ffffff" />
<path d="M 30 65 Q 50 75 70 65" stroke="#ffffff" stroke-width="3" fill="none" />
</svg>
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After

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126
tests/playwright/theme.spec.ts Normal file
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@@ -0,0 +1,126 @@
import { test, expect } from './fixtures';
test.describe('Theme Switching', () => {
test('user can toggle between light and dark mode', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// Get initial theme
const initialTheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
// Click theme toggle button
await page.click('[aria-label="Toggle color scheme"]');
await page.waitForTimeout(500); // Wait for theme transition
// Check theme changed
const newTheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
expect(newTheme).not.toBe(initialTheme);
expect(['light', 'dark']).toContain(newTheme);
});
test('theme preference persists across page refreshes', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// Set to a specific mode (light)
await page.evaluate(() => {
document.documentElement.setAttribute('data-mantine-color-scheme', 'light');
window.localStorage.setItem('mantine-color-scheme-value', 'light');
});
// Get the theme before reload
const themeBeforeReload = await page.evaluate(() => {
return window.localStorage.getItem('mantine-color-scheme-value');
});
// Refresh page
await page.reload();
await page.waitForLoadState('networkidle');
// Check theme persisted
const persistedTheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
expect(persistedTheme).toBe(themeBeforeReload);
});
test('theme toggle icon changes based on current theme', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// The button should be visible
const toggleButton = page.locator('[aria-label="Toggle color scheme"]');
await expect(toggleButton).toBeVisible();
// Icon should exist (either sun or moon)
const icon = toggleButton.locator('img, svg').first();
await expect(icon).toBeVisible();
});
});
test.describe('Theme Visual Appearance', () => {
test('light mode has light background', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// Force light mode
await page.evaluate(() => {
document.documentElement.setAttribute('data-mantine-color-scheme', 'light');
window.localStorage.setItem('mantine-color-scheme-value', 'light');
});
// Reload to apply theme
await page.reload();
await page.waitForLoadState('networkidle');
// Check that we're in light mode
const colorScheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
expect(colorScheme).toBe('light');
});
test('dark mode has dark background', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// Force dark mode
await page.evaluate(() => {
document.documentElement.setAttribute('data-mantine-color-scheme', 'dark');
window.localStorage.setItem('mantine-color-scheme-value', 'dark');
});
// Reload to apply theme
await page.reload();
await page.waitForLoadState('networkidle');
// Check that we're in dark mode
const colorScheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
expect(colorScheme).toBe('dark');
});
});
test.describe('Theme Auto-Detection', () => {
test('respects system color scheme preference when set to auto', async ({ page }) => {
await page.goto('/');
await page.waitForLoadState('networkidle');
// The app should detect and apply a theme (either light or dark)
const appliedTheme = await page.evaluate(() => {
return document.documentElement.getAttribute('data-mantine-color-scheme');
});
// Should be either light or dark, not null
expect(['light', 'dark']).toContain(appliedTheme);
});
});