valknar/palina-theme
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feat: enhance site with HTMX for AJAX navigation and Alpine.js for reactivity
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Sebastian Krüger
2026-02-19 18:07:46 +01:00
parent 3129f982df
commit 64a3c1d583
7 changed files with 117 additions and 242 deletions
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227
assets/js/main.js
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@@ -1,216 +1,35 @@
// Main JavaScript file for Palina theme
// Using HTMX and Alpine.js for enhanced functionality
document.addEventListener('DOMContentLoaded', () => {
console.log('Palina theme loaded!');
const htmlElement = document.documentElement;
// Remove 'hidden' class from html to prevent FOUC
htmlElement.classList.remove('hidden');
// Staggered fade-in animation for post grid (initial load)
const initialGridItems = document.querySelectorAll('.post-grid-item');
initialGridItems.forEach((item, index) => {
item.style.animationDelay = `${index * 100}ms`;
item.classList.add('animate-fadeInUp');
});
// Lightbox for post images
const lightbox = document.getElementById('lightbox');
if (lightbox) {
const lightboxImage = document.getElementById('lightbox-image');
const lightboxClose = document.getElementById('lightbox-close');
const setupLightboxImage = (image) => {
image.style.cursor = 'pointer';
image.addEventListener('click', () => {
lightbox.classList.remove('hidden');
lightbox.classList.add('show');
lightboxImage.src = image.src;
});
};
// Initial setup for existing images
document.querySelectorAll('.kg-image-card img, .post-content img').forEach(setupLightboxImage);
lightboxClose.addEventListener('click', () => {
lightbox.classList.add('hidden');
lightbox.classList.remove('show');
lightboxImage.src = '';
// Staggered fade-in animation for post grid
const animateGridItems = (container = document) => {
const gridItems = container.querySelectorAll('.post-grid-item:not(.animated)');
gridItems.forEach((item, index) => {
item.style.animationDelay = `${index * 100}ms`;
item.classList.add('animate-fadeInUp');
item.classList.add('animated');
});
lightbox.addEventListener('click', (e) => {
if (e.target.id !== 'lightbox-image') {
lightbox.classList.add('hidden');
lightbox.classList.remove('show');
lightboxImage.src = '';
}
});
}
// Theme Switcher
const themeToggle = document.getElementById('theme-toggle');
const sunIcon = document.getElementById('theme-toggle-sun-icon');
const moonIcon = document.getElementById('theme-toggle-moon-icon');
const setThemeIcons = (theme) => {
if (sunIcon && moonIcon) {
if (theme === 'dark') {
sunIcon.classList.remove('hidden');
moonIcon.classList.add('hidden');
} else {
sunIcon.classList.add('hidden');
moonIcon.classList.remove('hidden');
}
}
};
const currentTheme = localStorage.getItem('theme');
if (currentTheme) {
htmlElement.setAttribute('data-theme', currentTheme);
setThemeIcons(currentTheme);
} else if (window.matchMedia && window.matchMedia('(prefers-color-scheme: light)').matches) {
// Default to light theme if system preference is light
htmlElement.setAttribute('data-theme', 'light');
setThemeIcons('light');
} else {
// Default to dark theme if no preference
htmlElement.setAttribute('data-theme', 'dark');
setThemeIcons('dark');
}
// Initial animation
animateGridItems();
if (themeToggle) {
themeToggle.addEventListener('click', () => {
let newTheme = htmlElement.getAttribute('data-theme') === 'dark' ? 'light' : 'dark';
htmlElement.setAttribute('data-theme', newTheme);
localStorage.setItem('theme', newTheme);
setThemeIcons(newTheme);
});
}
// Mobile Menu
const mobileMenuToggle = document.getElementById('mobile-menu-toggle');
const mobileMenuClose = document.getElementById('mobile-menu-close');
const mobileMenu = document.getElementById('mobile-menu');
if (mobileMenuToggle && mobileMenu && mobileMenuClose) {
mobileMenuToggle.addEventListener('click', () => {
mobileMenu.classList.remove('-translate-x-full');
mobileMenu.classList.add('translate-x-0');
});
mobileMenuClose.addEventListener('click', () => {
mobileMenu.classList.remove('translate-x-0');
mobileMenu.classList.add('-translate-x-full');
});
// Close menu if a link is clicked
const mobileNavLinks = mobileMenu.querySelectorAll('a');
mobileNavLinks.forEach(link => {
link.addEventListener('click', () => {
mobileMenu.classList.remove('translate-x-0');
mobileMenu.classList.add('-translate-x-full');
});
});
}
// Infinite Scroll
const postsContainer = document.getElementById('posts-container');
const loadingSpinner = document.getElementById('loading-spinner');
if (postsContainer && loadingSpinner) {
let currentPage = 1;
let isLoading = false;
let hasMorePosts = true;
// Retrieve API key and URL from global GhostConfig object
if (typeof window.GhostConfig === 'undefined' || !window.GhostConfig.ghostApiKey || !window.GhostConfig.ghostApiUrl) {
console.error('Ghost Content API Key or URL not found in window.GhostConfig. Infinite scroll will not work.');
return;
// Re-run animation and other setup when HTMX settles new content
document.body.addEventListener('htmx:afterSettle', (event) => {
// If the settled element is the posts-container or contains grid items
if (event.detail.target.id === 'posts-container' || event.detail.target.querySelector('.post-grid-item')) {
animateGridItems(event.detail.target);
}
const GHOST_API_KEY = window.GhostConfig.ghostApiKey;
const GHOST_API_URL = window.GhostConfig.ghostApiUrl;
// If it was a full page boost, we might need to reset some things
if (event.detail.boosted) {
animateGridItems();
}
});
const fetchPosts = async () => {
if (isLoading || !hasMorePosts) return;
isLoading = true;
loadingSpinner.classList.remove('hidden');
currentPage++;
const postsPerPage = 12; // Matches posts_per_page in package.json config
const url = `${GHOST_API_URL}/ghost/api/content/posts/?key=${GHOST_API_KEY}&limit=${postsPerPage}&page=${currentPage}&include=tags,authors`;
try {
const response = await fetch(url);
const data = await response.json();
const newPosts = data.posts;
const pagination = data.meta.pagination;
if (newPosts.length > 0) {
newPosts.forEach((post, index) => {
const article = document.createElement('article');
article.className = 'post-grid-item opacity-0 relative bg-[var(--bg-secondary)] rounded-lg shadow-lg overflow-hidden group';
// Basic rendering of a post for infinite scroll.
// This should ideally match the structure in index.hbs
// For simplicity, I'm reconstructing it here.
article.innerHTML = `
<a href="${post.url}" class="block">
${post.feature_image ? `
<img
class="w-full h-72 object-cover transition-transform duration-300 ease-in-out group-hover:scale-105"
src="${post.feature_image}"
alt="${post.title}"
loading="lazy"
>
` : `
<div class="w-full h-72 flex items-center justify-center bg-[var(--bg-tertiary)] text-[var(--text-tertiary)] text-2xl">No Image</div>
`}
<div class="absolute inset-0 bg-black bg-opacity-50 flex items-end p-4 opacity-0 group-hover:opacity-100 transition-opacity duration-300 ease-in-out">
<h2 class="text-[var(--text-primary)] text-xl font-semibold leading-tight">${post.title}</h2>
</div>
</a>
`;
postsContainer.appendChild(article);
// Apply staggered animation to newly added posts
// Calculate delay based on total items
const totalItems = postsContainer.children.length;
article.style.animationDelay = `${(totalItems - newPosts.length + index) * 100}ms`;
article.classList.add('animate-fadeInUp');
// If lightbox is present, set up new images for lightbox
if (lightbox) {
article.querySelectorAll('.kg-image-card img, .post-content img').forEach(setupLightboxImage);
}
});
} else {
hasMorePosts = false;
}
if (pagination && pagination.next === null) {
hasMorePosts = false;
}
} catch (error) {
console.error('Error fetching posts:', error);
hasMorePosts = false; // Stop trying to fetch if there's an error
} finally {
isLoading = false;
loadingSpinner.classList.add('hidden');
}
};
const observer = new IntersectionObserver(entries => {
entries.forEach(entry => {
if (entry.isIntersecting && hasMorePosts && !isLoading) {
fetchPosts();
}
});
}, { threshold: 0.1 }); // Trigger when 10% of the spinner is visible
observer.observe(loadingSpinner);
}
// Handle Lightbox for post images specifically (if needed beyond the global Alpine listener)
// The global listener in default.hbs should handle most cases.
});