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interface ThemeFlavor {
id: string;
name: string;
cssFile: string;
icon?: string;
}
const THEMES: ThemeFlavor[] = [
{
id: 'bulma-light',
name: 'Bulma Light',
cssFile: 'assets/css/themes/bulma-light.css',
icon: 'assets/img/bulma-logo.png',
},
{
id: 'bulma-dark',
name: 'Bulma Dark',
cssFile: 'assets/css/themes/bulma-dark.css',
icon: 'assets/img/bulma-logo-dark.png',
},
{
id: 'catppuccin-latte',
name: 'Catppuccin Latte',
cssFile: 'assets/css/themes/catppuccin-latte.css',
icon: 'assets/img/catppuccin-logo-latte.png',
},
{
id: 'catppuccin-frappe',
name: 'Catppuccin Frappé',
cssFile: 'assets/css/themes/catppuccin-frappe.css',
icon: 'assets/img/catppuccin-logo-latte.png',
},
{
id: 'catppuccin-macchiato',
name: 'Catppuccin Macchiato',
cssFile: 'assets/css/themes/catppuccin-macchiato.css',
icon: 'assets/img/catppuccin-logo-macchiato.png',
},
{
id: 'catppuccin-mocha',
name: 'Catppuccin Mocha',
cssFile: 'assets/css/themes/catppuccin-mocha.css',
icon: 'assets/img/catppuccin-logo-macchiato.png',
},
{
id: 'dracula',
name: 'Dracula',
cssFile: 'assets/css/themes/dracula.css',
icon: 'assets/img/dracula-logo.png',
},
{
id: 'github-light',
name: 'GitHub Light',
cssFile: 'assets/css/themes/github-light.css',
icon: 'assets/img/github-logo-light.png',
},
{
id: 'github-dark',
name: 'GitHub Dark',
cssFile: 'assets/css/themes/github-dark.css',
icon: 'assets/img/github-logo-dark.png',
},
];
const STORAGE_KEY = 'bulma-theme-flavor';
const DEFAULT_THEME = 'catppuccin-mocha';
function getBaseUrl(doc: Document): string {
const baseElement = doc.documentElement;
const raw = baseElement?.getAttribute('data-baseurl') || '';
try {
const u = new URL(raw, 'http://localhost');
// Only allow same-origin relative paths; strip origin used for parsing
return u.origin === 'http://localhost' ? u.pathname.replace(/\/$/, '') : '';
} catch {
return '';
}
}
function applyTheme(doc: Document, themeId: string): void {
const theme = THEMES.find((t) => t.id === themeId) || THEMES.find((t) => t.id === DEFAULT_THEME)!;
const baseUrl = getBaseUrl(doc);
const flavorLink = doc.getElementById('theme-flavor-css') as HTMLLinkElement | null;
if (flavorLink) {
// Build a safe URL relative to base by prepending baseUrl to relative path
try {
const fullPath = baseUrl ? `${baseUrl}/${theme.cssFile}` : theme.cssFile;
const url = new URL(fullPath, 'http://localhost');
flavorLink.href = url.pathname;
} catch {
// Ignore invalid URL
}
}
doc.documentElement.setAttribute('data-flavor', themeId);
// Update trigger button icon
const triggerIcon = doc.getElementById('theme-flavor-trigger-icon');
if (triggerIcon) {
// Clear existing content first
while (triggerIcon.firstChild) {
triggerIcon.removeChild(triggerIcon.firstChild);
}
if (theme.icon) {
// Create and append img element (CSP-friendly)
const img = doc.createElement('img');
try {
const fullPath = baseUrl ? `${baseUrl}/${theme.icon}` : theme.icon;
const url = new URL(fullPath, 'http://localhost');
img.src = url.pathname;
} catch {
// Ignore invalid URL
}
img.alt = theme.name;
img.title = theme.name; // Tooltip on hover
img.width = 28;
img.height = 28;
triggerIcon.appendChild(img);
} else E{
// Fallback: show first two letters with circular background
const span = doc.createElement('span');
span.textContent = theme.name.substring(0, 2).toUpperCase();
span.style.fontSize = '12px';
span.style.fontWeight = 'bold';
span.style.color = 'var(--theme-text, inherit)';
span.style.display = 'flex';
span.style.alignItems = 'center';
span.style.justifyContent = 'center';
span.style.width = '28px';
span.style.height = '28px';
span.style.borderRadius = '50%';
span.style.backgroundColor = 'var(--theme-surface-1, #f5f5f5)';
span.style.border = '1px solid var(--theme-border, #ddd)';
span.title = theme.name; // Tooltip on hover
triggerIcon.appendChild(span);
}
}
// Update active state in dropdown
const dropdownItems = doc.querySelectorAll('#theme-flavor-items .dropdown-item');
dropdownItems.forEach((item) => {
if (item.getAttribute('data-theme-id') === themeId) {
item.classList.add('is-active');
item.setAttribute('aria-checked', 'true');
} else {
item.classList.remove('is-active');
item.setAttribute('aria-checked', 'false');
}
});
}
export function initTheme(documentObj: Document, windowObj: Window): void {
const savedTheme = windowObj.localStorage.getItem(STORAGE_KEY) || DEFAULT_THEME;
applyTheme(documentObj, savedTheme);
}
export function initNavbar(documentObj: Document): void {
const currentPath = documentObj.location.pathname;
const navbarItems = documentObj.querySelectorAll('.navbar-item');
// Find the matching link first
let matchingItem: Element | null = null;
const checkedItems = new Set<Element>();
navbarItems.forEach((item) => {
const link = item as HTMLAnchorElement;
if (link.href) {
try {
const linkPath = new URL(link.href).pathname;
// Remove trailing slashes for comparison
const normalizedCurrentPath = currentPath.replace(/\/$/, '') || '/';
const normalizedLinkPath = linkPath.replace(/\/$/, '') || '/';
checkedItems.add(item);
if (normalizedCurrentPath === normalizedLinkPath) {
matchingItem = item;
}
} catch {
// Ignore invalid URLs - don't add to checkedItems
}
}
});
// Clear all active states except the matching one (only for items that were checked)
navbarItems.forEach((item) => {
if (item !== matchingItem && checkedItems.has(item)) {
item.classList.remove('is-active');
const link = item as HTMLAnchorElement;
// Check if removeAttribute exists (for test mocks that might not have it)
Eif (link && 'removeAttribute' in link && typeof link.removeAttribute === 'function') {
link.removeAttribute('aria-current');
}
}
});
// Set active state for the matching link
if (matchingItem) {
(matchingItem as HTMLElement).classList.add('is-active');
const link = matchingItem as HTMLAnchorElement;
// Check if setAttribute exists (for test mocks that might not have it)
if (link && 'setAttribute' in link && typeof link.setAttribute === 'function') {
link.setAttribute('aria-current', 'page');
}
}
// Handle Reports dropdown highlighting
const reportsLink = documentObj.querySelector<HTMLElement>('[data-testid="nav-reports"]');
if (reportsLink) {
const reportPaths = ['/coverage', '/playwright', '/lighthouse'];
const normalizedCurrentPath = currentPath.replace(/\/$/, '') || '/';
const isOnReportsPage = reportPaths.some(
(path) => normalizedCurrentPath === path || normalizedCurrentPath.startsWith(path + '/')
);
if (isOnReportsPage) {
reportsLink.classList.add('is-active');
} else {
reportsLink.classList.remove('is-active');
}
}
}
// Expose functions to global scope for use in HTML
declare global {
interface Window {
initNavbar: typeof initNavbar;
}
}
window.initNavbar = initNavbar;
export function wireFlavorSelector(
documentObj: Document,
windowObj: Window
): { cleanup: () => void } {
const abortController = new AbortController();
const baseUrl = getBaseUrl(documentObj);
const dropdownContent = documentObj.getElementById('theme-flavor-items');
const trigger = documentObj.querySelector<HTMLButtonElement>('.theme-flavor-trigger');
const dropdown = documentObj.getElementById('theme-flavor-dd');
if (!dropdownContent || !trigger || !dropdown) {
return {
cleanup: () => {
abortController.abort();
},
};
}
let currentIndex = -1;
const menuItems: HTMLElement[] = [];
// Get current theme to set initial aria-checked state
const currentThemeId =
windowObj.localStorage.getItem(STORAGE_KEY) ||
documentObj.documentElement.getAttribute('data-flavor') ||
DEFAULT_THEME;
// Populate dropdown with theme options
THEMES.forEach((theme) => {
const item = documentObj.createElement('a');
item.href = '#';
item.className = 'dropdown-item';
item.setAttribute('data-theme-id', theme.id);
item.setAttribute('role', 'menuitemradio');
item.setAttribute('aria-label', theme.name);
item.setAttribute('tabindex', '-1');
const isActive = theme.id === currentThemeId;
item.setAttribute('aria-checked', String(isActive));
if (isActive) {
item.classList.add('is-active');
}
if (theme.icon) {
const img = documentObj.createElement('img');
try {
const fullPath = baseUrl ? `${baseUrl}/${theme.icon}` : theme.icon;
const url = new URL(fullPath, 'http://localhost');
img.src = url.pathname;
} catch {
// Ignore invalid URL
}
img.alt = theme.name;
img.title = theme.name;
img.width = 28;
img.height = 28;
item.appendChild(img);
} else E{
// Fallback: show first two letters with styled background
const span = documentObj.createElement('span');
span.textContent = theme.name.substring(0, 2);
span.style.fontSize = '14px';
span.style.fontWeight = 'bold';
span.style.color = 'var(--theme-text, inherit)';
item.appendChild(span);
}
// Always include a visually hidden full name for screen readers
const srOnly = documentObj.createElement('span');
srOnly.textContent = theme.name;
srOnly.style.position = 'absolute';
srOnly.style.width = '1px';
srOnly.style.height = '1px';
srOnly.style.padding = '0';
srOnly.style.margin = '-1px';
srOnly.style.overflow = 'hidden';
srOnly.style.clip = 'rect(0, 0, 0, 0)';
srOnly.style.whiteSpace = 'nowrap';
srOnly.style.border = '0';
item.appendChild(srOnly);
item.addEventListener('click', (e) => {
e.preventDefault();
applyTheme(documentObj, theme.id);
windowObj.localStorage.setItem(STORAGE_KEY, theme.id);
closeDropdown({ restoreFocus: true });
});
menuItems.push(item);
dropdownContent.appendChild(item);
});
// Update aria-expanded on trigger
const updateAriaExpanded = (expanded: boolean) => {
trigger.setAttribute('aria-expanded', String(expanded));
};
// Focus management
const focusMenuItem = (index: number) => {
Iif (index < 0 || index >= menuItems.length) return;
const item = menuItems[index]!;
// Set tabindex to -1 for all items
menuItems.forEach((menuItem) => {
menuItem.setAttribute('tabindex', '-1');
});
// Focus and set tabindex to 0 on current item
item.setAttribute('tabindex', '0');
item.focus();
currentIndex = index;
};
const openDropdown = () => {
dropdown.classList.add('is-active');
updateAriaExpanded(true);
currentIndex = -1;
};
const closeDropdown = (options: { restoreFocus?: boolean } = {}): void => {
const { restoreFocus = true } = options;
dropdown.classList.remove('is-active');
updateAriaExpanded(false);
menuItems.forEach((menuItem) => {
menuItem.setAttribute('tabindex', '-1');
});
currentIndex = -1;
if (restoreFocus) {
// Only restore focus to trigger when explicitly requested (e.g., selection or Esc)
trigger.focus();
}
};
// Open dropdown on hover
dropdown.addEventListener(
'mouseenter',
() => {
openDropdown();
},
{ signal: abortController.signal }
);
// Close dropdown when mouse leaves
dropdown.addEventListener(
'mouseleave',
() => {
// Only close if not keyboard navigating
Eif (currentIndex === -1) {
closeDropdown();
}
},
{ signal: abortController.signal }
);
// Toggle dropdown helper function
const toggleDropdown = (focusFirst = false) => {
const isActive = dropdown.classList.toggle('is-active');
updateAriaExpanded(isActive);
if (!isActive) {
currentIndex = -1;
menuItems.forEach((menuItem) => {
menuItem.setAttribute('tabindex', '-1');
menuItem.setAttribute('aria-checked', String(menuItem.classList.contains('is-active')));
});
E} else if (focusFirst && menuItems.length > 0) {
// ...rest of the existing logic
// When opening via keyboard, focus first item
focusMenuItem(0);
}
};
// Toggle dropdown on trigger click (for touch devices)
trigger.addEventListener(
'click',
(e) => {
e.preventDefault();
toggleDropdown();
},
{ signal: abortController.signal }
);
// Close dropdown when clicking outside
documentObj.addEventListener(
'click',
(e: MouseEvent) => {
if (!dropdown.contains(e.target as Node)) {
// Close on any outside click; do not steal focus from the newly clicked element
closeDropdown({ restoreFocus: false });
}
},
{ signal: abortController.signal }
);
// Handle Escape key globally to close dropdown
documentObj.addEventListener(
'keydown',
(e: KeyboardEvent) => {
Eif (e.key === 'Escape' && dropdown.classList.contains('is-active')) {
closeDropdown({ restoreFocus: true });
}
},
{ signal: abortController.signal }
);
// Keyboard navigation
trigger.addEventListener(
'keydown',
(e: KeyboardEvent) => {
const key = e.key;
if (key === 'Enter' || key === ' ') {
e.preventDefault();
const wasActive = dropdown.classList.contains('is-active');
if (wasActive) {
// If already open, close it
toggleDropdown(false);
} else {
// If closed, open and focus first item
toggleDropdown(true);
}
} else if (key === 'ArrowDown') {
e.preventDefault();
if (!dropdown.classList.contains('is-active')) {
dropdown.classList.add('is-active');
updateAriaExpanded(true);
focusMenuItem(0); // Focus first item when opening
} else {
// If currentIndex is -1 (dropdown opened via mouse or not yet initialized), focus first item
if (currentIndex < 0) {
focusMenuItem(0);
} else {
const nextIndex = currentIndex < menuItems.length - 1 ? currentIndex + 1 : 0;
focusMenuItem(nextIndex);
}
}
} else if (key === 'ArrowUp') {
e.preventDefault();
if (!dropdown.classList.contains('is-active')) {
dropdown.classList.add('is-active');
updateAriaExpanded(true);
// Start from last item when opening with ArrowUp
focusMenuItem(menuItems.length - 1);
} else {
// If currentIndex is -1 (dropdown opened via mouse), start from last
const startIndex = currentIndex < 0 ? menuItems.length - 1 : currentIndex;
const prevIndex = startIndex > 0 ? startIndex - 1 : menuItems.length - 1;
focusMenuItem(prevIndex);
}
}
},
{ signal: abortController.signal }
);
// Keyboard navigation on menu items
menuItems.forEach((item, index) => {
item.addEventListener(
'keydown',
(e: KeyboardEvent) => {
const key = e.key;
if (key === 'ArrowDown') {
e.preventDefault();
const nextIndex = index < menuItems.length - 1 ? index + 1 : 0;
focusMenuItem(nextIndex);
} else if (key === 'ArrowUp') {
e.preventDefault();
const prevIndex = index > 0 ? index - 1 : menuItems.length - 1;
focusMenuItem(prevIndex);
} else if (key === 'Escape') {
e.preventDefault();
closeDropdown();
} else if (key === 'Enter' || key === ' ') {
e.preventDefault();
item.click();
} else if (key === 'Home') {
e.preventDefault();
focusMenuItem(0);
E} else if (key === 'End') {
e.preventDefault();
focusMenuItem(menuItems.length - 1);
}
},
{ signal: abortController.signal }
);
});
// Initialize aria-expanded
updateAriaExpanded(false);
return {
cleanup: () => {
abortController.abort();
},
};
}
export function enhanceAccessibility(documentObj: Document): void {
const pres = documentObj.querySelectorAll('.highlight > pre');
pres.forEach((pre) => {
if (!pre.hasAttribute('tabindex')) pre.setAttribute('tabindex', '0');
if (!pre.hasAttribute('role')) pre.setAttribute('role', 'region');
if (!pre.hasAttribute('aria-label')) pre.setAttribute('aria-label', 'Code block');
});
}
// Auto-initialize on DOMContentLoaded
Eif (typeof document !== 'undefined' && typeof window !== 'undefined') {
document.addEventListener('DOMContentLoaded', () => {
console.warn('Theme switcher initializing...');
try {
initTheme(document, window);
const { cleanup } = wireFlavorSelector(document, window);
enhanceAccessibility(document);
// Register cleanup to run on teardown
const pagehideHandler = () => {
cleanup();
window.removeEventListener('pagehide', pagehideHandler);
};
window.addEventListener('pagehide', pagehideHandler);
console.warn('Theme switcher initialized successfully');
} catch (error) {
console.error('Theme switcher initialization failed:', error);
}
});
}
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