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commonflow.org/src/components/Header.astro
2026-01-11 00:19:33 +00:00

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---
import VersionSelector from "./VersionSelector.astro";
import ThemeToggle from "./ThemeToggle.astro";
import { config } from "../config";
interface Props {
version: string;
}
const { version } = Astro.props;
---
<header
id="site-header"
class="fixed top-0 inset-x-0 z-50 border-b border-transparent
translate-y-[-100%] transition-transform duration-300
backdrop-blur-xl bg-gray-50/85 dark:bg-neutral-950/85"
>
<div
class="max-w-6xl mx-auto px-4 sm:px-6 h-16 flex items-center justify-between"
>
<!-- Logo / Title + Version -->
<div class="flex items-center gap-3">
<a
href="#hero"
class="flex items-center gap-3 no-underline
text-gray-950 dark:text-neutral-50
hover:text-sky-600 transition-colors"
>
<span class="font-display font-bold text-lg tracking-tight">
Git Common-Flow
</span>
</a>
<div class="hidden md:block">
<VersionSelector
currentVersion={version}
versions={Array.from(config.versions)}
/>
</div>
</div>
<!-- Desktop Navigation -->
<nav class="hidden md:flex items-center gap-1">
<a
href="#about"
class="nav-link inline-flex items-center px-4 py-2 text-sm font-medium
rounded-lg transition-colors cursor-pointer
text-gray-600 dark:text-neutral-400
hover:bg-gray-100 hover:text-gray-950
dark:hover:bg-neutral-800 dark:hover:text-neutral-50"
data-nav-link
data-section-id="about"
>
About
</a>
<a
href="#spec"
class="nav-link inline-flex items-center px-4 py-2 text-sm font-medium
rounded-lg transition-colors cursor-pointer
text-gray-600 dark:text-neutral-400
hover:bg-gray-100 hover:text-gray-950
dark:hover:bg-neutral-800 dark:hover:text-neutral-50"
data-nav-link
data-section-id="spec"
>
Spec
</a>
<a
href="#faq"
class="nav-link inline-flex items-center px-4 py-2 text-sm font-medium
rounded-lg transition-colors cursor-pointer
text-gray-600 dark:text-neutral-400
hover:bg-gray-100 hover:text-gray-950
dark:hover:bg-neutral-800 dark:hover:text-neutral-50"
data-nav-link
data-section-id="faq"
>
FAQ
</a>
</nav>
<!-- Right side: Theme, GitHub -->
<div class="flex items-center gap-3">
<ThemeToggle />
<a
href={config.repoUrl}
target="_blank"
rel="noopener noreferrer"
class="p-2 rounded-lg transition-colors
text-gray-500 dark:text-neutral-500
hover:text-gray-950 dark:hover:text-neutral-50
hover:bg-gray-100 dark:hover:bg-neutral-800"
aria-label="View on GitHub"
>
<svg class="w-5 h-5" fill="currentColor" viewBox="0 0 24 24">
<path
fill-rule="evenodd"
d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z"
clip-rule="evenodd"></path>
</svg>
</a>
<!-- Mobile menu button -->
<button
id="mobile-menu-btn"
class="md:hidden p-2 rounded-lg
text-gray-500 dark:text-neutral-500
hover:bg-gray-100 dark:hover:bg-neutral-800"
aria-label="Toggle menu"
>
<svg
class="w-5 h-5"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<path
stroke-linecap="round"
stroke-linejoin="round"
stroke-width="2"
d="M4 6h16M4 12h16M4 18h16"></path>
</svg>
</button>
</div>
</div>
<!-- Mobile Navigation -->
<nav
id="mobile-nav"
class="md:hidden hidden border-t border-gray-200 dark:border-neutral-800"
>
<div class="px-4 py-3 space-y-1 text-center">
<div class="py-2 flex justify-center">
<VersionSelector
currentVersion={version}
versions={Array.from(config.versions)}
/>
</div>
<a
href="#about"
class="nav-link block py-2 text-gray-600 dark:text-neutral-400
hover:text-sky-600"
data-nav-link
data-section-id="about"
>
About
</a>
<a
href="#spec"
class="nav-link block py-2 text-gray-600 dark:text-neutral-400
hover:text-sky-600"
data-nav-link
data-section-id="spec"
>
Spec
</a>
<a
href="#faq"
class="nav-link block py-2 text-gray-600 dark:text-neutral-400
hover:text-sky-600"
data-nav-link
data-section-id="faq"
>
FAQ
</a>
</div>
</nav>
</header>
<script>
function initHeader() {
const header = document.getElementById("site-header");
const hero = document.getElementById("hero");
const mobileMenuBtn = document.getElementById("mobile-menu-btn");
const mobileNav = document.getElementById("mobile-nav");
if (!header || !hero) return;
// Show/hide header based on scroll position
// Show header once scrolled down by the navbar height (64px)
const navbarHeight = 64;
function updateHeaderVisibility() {
if (window.scrollY >= navbarHeight) {
header.classList.remove("translate-y-[-100%]", "border-transparent");
header.classList.add("border-gray-200", "dark:border-neutral-800");
} else {
header.classList.add("translate-y-[-100%]", "border-transparent");
header.classList.remove("border-gray-200", "dark:border-neutral-800");
}
}
window.addEventListener("scroll", updateHeaderVisibility, { passive: true });
updateHeaderVisibility();
// Mobile menu toggle
if (mobileMenuBtn && mobileNav) {
mobileMenuBtn.addEventListener("click", () => {
mobileNav.classList.toggle("hidden");
});
// Close menu when clicking a link
mobileNav.querySelectorAll("a").forEach((link) => {
link.addEventListener("click", () => {
mobileNav.classList.add("hidden");
});
});
}
// Active section tracking for nav links
const navLinks = document.querySelectorAll("[data-nav-link]");
const sections: { id: string; element: Element }[] = [];
// Collect unique section IDs
const seenIds = new Set<string>();
navLinks.forEach((link) => {
const id = link.getAttribute("data-section-id");
if (id && !seenIds.has(id)) {
seenIds.add(id);
const section = document.getElementById(id);
if (section) {
sections.push({ id, element: section });
}
}
});
function updateActiveNavSection() {
const headerOffset = 100;
let activeId: string | null = null;
for (const { id, element } of sections) {
const rect = element.getBoundingClientRect();
if (rect.top <= headerOffset) {
activeId = id;
}
}
navLinks.forEach((link) => {
const linkId = link.getAttribute("data-section-id");
link.classList.toggle("active", linkId === activeId);
});
}
let ticking = false;
window.addEventListener("scroll", () => {
if (!ticking) {
requestAnimationFrame(() => {
updateActiveNavSection();
ticking = false;
});
ticking = true;
}
});
updateActiveNavSection();
}
// Initialize on load
initHeader();
// Re-initialize on Astro page transitions
document.addEventListener("astro:after-swap", initHeader);
</script>