Add sticky header, font size controls, and page prefetch

1. Sticky header on scroll
   - Shows current page title and breadcrumb navigation
   - Appears when scrolling past the main breadcrumb
   - Smooth slide-down animation

2. Font size controls (A/A buttons)
   - Small, normal, large, x-large sizes
   - Persisted to localStorage
   - Positioned next to dark mode toggle

3. Prefetch next/prev pages
   - Uses requestIdleCallback for non-blocking prefetch
   - Prefetches chapter/verse/book navigation links
   - Makes page-to-page navigation feel instant

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

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
2025-12-03 14:26:39 -05:00
parent 01bd78b9cb
commit c42d01d4f4
2 changed files with 300 additions and 0 deletions
+102
View File
@@ -12,6 +12,31 @@ function toggleDarkMode() {
localStorage.setItem('theme', newTheme);
}
// Font size functionality
(function() {
const sizes = ['small', 'normal', 'large', 'x-large'];
const savedSize = localStorage.getItem('fontSize') || 'normal';
if (savedSize !== 'normal') {
document.documentElement.setAttribute('data-font-size', savedSize);
}
})();
function changeFontSize(direction) {
const sizes = ['small', 'normal', 'large', 'x-large'];
const currentSize = document.documentElement.getAttribute('data-font-size') || 'normal';
const currentIndex = sizes.indexOf(currentSize);
const newIndex = Math.max(0, Math.min(sizes.length - 1, currentIndex + direction));
const newSize = sizes[newIndex];
if (newSize === 'normal') {
document.documentElement.removeAttribute('data-font-size');
localStorage.removeItem('fontSize');
} else {
document.documentElement.setAttribute('data-font-size', newSize);
localStorage.setItem('fontSize', newSize);
}
}
// Red letter toggle functionality
(function() {
// Check for saved red letter preference or default to enabled
@@ -34,6 +59,41 @@ function toggleRedLetters() {
}
}
// Sticky header on scroll
(function() {
var stickyHeader = document.getElementById('sticky-header');
var breadcrumb = document.querySelector('.breadcrumb');
if (!stickyHeader || !breadcrumb) return;
var lastScrollY = 0;
var ticking = false;
var threshold = 150; // Show after scrolling 150px past breadcrumb
function updateStickyHeader() {
var breadcrumbBottom = breadcrumb.getBoundingClientRect().bottom;
var scrollY = window.scrollY;
// Show sticky header when breadcrumb is scrolled out of view
if (breadcrumbBottom < -threshold) {
stickyHeader.classList.add('visible');
stickyHeader.setAttribute('aria-hidden', 'false');
} else {
stickyHeader.classList.remove('visible');
stickyHeader.setAttribute('aria-hidden', 'true');
}
ticking = false;
}
window.addEventListener('scroll', function() {
lastScrollY = window.scrollY;
if (!ticking) {
window.requestAnimationFrame(updateStickyHeader);
ticking = true;
}
}, { passive: true });
})();
// Sidebar collapse state persistence (mobile only)
(function() {
var toggle = document.getElementById('sidebar-toggle');
@@ -1410,3 +1470,45 @@ function showKeyboardHelp() {
});
})();
// Prefetch next/prev pages for faster navigation
(function() {
// Wait for page to be fully loaded and idle
if ('requestIdleCallback' in window) {
requestIdleCallback(prefetchNavigationLinks, { timeout: 2000 });
} else {
setTimeout(prefetchNavigationLinks, 1000);
}
function prefetchNavigationLinks() {
// Find navigation links (next/prev chapter, verse, book)
var prefetchSelectors = [
'a[rel="next"]',
'a[rel="prev"]',
'.chapter-nav a',
'.verse-nav a',
'.book-nav a',
'.nav-btn[href*="/chapter/"]',
'.nav-btn[href*="/verse/"]'
];
var links = document.querySelectorAll(prefetchSelectors.join(', '));
var prefetched = new Set();
links.forEach(function(link) {
var href = link.href;
if (!href || prefetched.has(href)) return;
if (href.includes('#')) return; // Skip anchor links
if (!href.startsWith(window.location.origin)) return; // Skip external links
prefetched.add(href);
// Use link prefetch hint
var prefetchLink = document.createElement('link');
prefetchLink.rel = 'prefetch';
prefetchLink.href = href;
prefetchLink.as = 'document';
document.head.appendChild(prefetchLink);
});
}
})();
+198
View File
@@ -346,6 +346,184 @@
padding-bottom: 1rem;
}
/* Sticky header on scroll */
.sticky-header {
position: fixed;
top: 0;
left: 140px;
right: 0;
background: var(--bg-color);
border-bottom: 1px solid var(--border-color);
padding: 0.6rem 2rem;
z-index: 99;
transform: translateY(-100%);
transition: transform 0.2s ease;
box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.sticky-header.visible {
transform: translateY(0);
}
.sticky-header-content {
display: flex;
align-items: center;
justify-content: space-between;
max-width: 800px;
gap: 1rem;
}
.sticky-header-title {
font-size: 0.95rem;
font-weight: 500;
color: var(--text-color);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.sticky-header-breadcrumb {
font-size: 0.8rem;
color: var(--text-secondary);
display: flex;
align-items: center;
gap: 0.5rem;
}
.sticky-header-breadcrumb a {
color: var(--text-secondary);
text-decoration: none;
border-bottom: none;
}
.sticky-header-breadcrumb a:hover {
color: var(--link-color);
}
.sticky-header-breadcrumb .sep {
color: var(--text-quaternary);
}
[data-theme="dark"] .sticky-header {
box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
@media (max-width: 1200px) {
.sticky-header {
left: 0;
}
}
/* Font size controls */
.font-size-controls {
position: fixed;
top: 2rem;
right: 4rem;
z-index: 101;
margin: -25px 0 0 0;
display: flex;
gap: 0.25rem;
}
.font-size-btn {
width: 24px;
height: 24px;
cursor: pointer;
background: transparent;
border: 1px solid var(--border-color-darker);
border-radius: 3px;
display: flex;
align-items: center;
justify-content: center;
font-size: 0.75rem;
font-weight: 600;
color: var(--text-secondary);
transition: all 0.2s;
font-family: inherit;
}
.font-size-btn:hover {
border-color: var(--text-tertiary);
color: var(--link-hover);
}
.font-size-btn.decrease {
font-size: 0.65rem;
}
.font-size-btn.increase {
font-size: 0.85rem;
}
/* Font size scale classes */
[data-font-size="small"] article {
font-size: 0.9rem;
}
[data-font-size="small"] article p,
[data-font-size="small"] article li {
font-size: 1.2rem;
}
[data-font-size="small"] article h1 {
font-size: 2.4rem;
}
[data-font-size="small"] article h2 {
font-size: 1.7rem;
}
[data-font-size="large"] article {
font-size: 1.1rem;
}
[data-font-size="large"] article p,
[data-font-size="large"] article li {
font-size: 1.6rem;
line-height: 2.2;
}
[data-font-size="large"] article h1 {
font-size: 3.2rem;
}
[data-font-size="large"] article h2 {
font-size: 2.3rem;
}
[data-font-size="x-large"] article {
font-size: 1.2rem;
}
[data-font-size="x-large"] article p,
[data-font-size="x-large"] article li {
font-size: 1.8rem;
line-height: 2.4;
}
[data-font-size="x-large"] article h1 {
font-size: 3.5rem;
}
[data-font-size="x-large"] article h2 {
font-size: 2.6rem;
}
@media (max-width: 768px) {
.font-size-controls {
top: 1rem;
right: 3.5rem;
margin: 0;
}
}
@media (max-width: 480px) {
.font-size-controls {
top: 0.5rem;
right: 3rem;
}
}
.breadcrumb a {
color: var(--link-color);
text-decoration: none;
@@ -1306,9 +1484,29 @@
<p class="sidebar-toggle-container">
<label for="sidebar-toggle" class="sidebar-toggle-btn" title="Toggle sidebar" aria-label="Toggle navigation sidebar"></label>
</p>
<div class="font-size-controls">
<button class="font-size-btn decrease" title="Decrease font size" onclick="changeFontSize(-1)" aria-label="Decrease font size">A</button>
<button class="font-size-btn increase" title="Increase font size" onclick="changeFontSize(1)" aria-label="Increase font size">A</button>
</div>
<p class="dark-mode-toggle">
<button class="dark-mode-btn" title="Toggle dark mode" onclick="toggleDarkMode()" aria-label="Toggle dark mode"></button>
</p>
<!-- Sticky header (appears on scroll) -->
{% if breadcrumbs %}
<header class="sticky-header" id="sticky-header" aria-hidden="true">
<div class="sticky-header-content">
<span class="sticky-header-title">{{ breadcrumbs[-1].text if breadcrumbs else '' }}</span>
<nav class="sticky-header-breadcrumb">
{% for crumb in breadcrumbs[:-1] %}
<a href="{{ crumb.url }}">{{ crumb.text }}</a>
{% if not loop.last %}<span class="sep"></span>{% endif %}
{% endfor %}
</nav>
</div>
</header>
{% endif %}
<article role="main" id="main-content">
{% if breadcrumbs %}
<nav class="breadcrumb" aria-label="Breadcrumb">