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highlights section user is on in the about page #1995

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73 changes: 60 additions & 13 deletions src/Pages/About/About.js
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Original file line number Diff line number Diff line change
@@ -1,6 +1,35 @@
import React from 'react';
import React, { useEffect, useState } from 'react';

function useScrollSpy() {
const [activeId, setActiveId] = useState(null);

useEffect(() => {
const sections = document.querySelectorAll("[data-spy]");

const observer = new IntersectionObserver(
(entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
setActiveId(entry.target.id);
}
});
},
{
rootMargin: "-100px 0px -80% 0px", // adjust to activate earlier/later
threshold: 0,
}
);

sections.forEach((section) => observer.observe(section));
return () => observer.disconnect();
}, []);

return activeId;
}

export default function AboutPage() {
const activeId = useScrollSpy();

const scrollToSection = (id) => {
document.getElementById(id)?.scrollIntoView({ behavior: 'smooth' });
};
Expand All @@ -19,7 +48,7 @@ export default function AboutPage() {
</p>
</div>

<section id="introduction" className="space-y-6">
<section id="introduction" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Introduction</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand All @@ -37,7 +66,7 @@ export default function AboutPage() {
</div>
</section>

<section id="location" className="space-y-6">
<section id="location" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Location & Hours</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand Down Expand Up @@ -66,7 +95,7 @@ export default function AboutPage() {
</div>
</section>

<section id="membership" className="space-y-6">
<section id="membership" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Becoming an SCE Member</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand Down Expand Up @@ -102,7 +131,7 @@ export default function AboutPage() {
</div>
</section>

<section id="development" className="space-y-6">
<section id="development" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Development Team</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand All @@ -127,7 +156,7 @@ export default function AboutPage() {
</div>
</section>

<section id="internship" className="space-y-6">
<section id="internship" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Summer Internship Program</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand All @@ -153,7 +182,7 @@ export default function AboutPage() {
</div>
</section>

<section id="discord" className="space-y-6">
<section id="discord" data-spy className="space-y-6">
<h2 className="text-2xl font-semibold text-gray-900 md:text-3xl dark:text-gray-100">Join Our Community</h2>
<div className="text-gray-700 prose prose-lg dark:text-gray-300">
<p>
Expand Down Expand Up @@ -195,37 +224,55 @@ export default function AboutPage() {
<nav className="space-y-3">
<button
onClick={() => scrollToSection('introduction')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "introduction" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Introduction
</button>
<button
onClick={() => scrollToSection('location')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "location" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Location & Hours
</button>
<button
onClick={() => scrollToSection('membership')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "membership" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Membership
</button>
<button
onClick={() => scrollToSection('development')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "development" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Development Team
</button>
<button
onClick={() => scrollToSection('internship')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "internship" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Summer Internship
</button>
<button
onClick={() => scrollToSection('discord')}
className="block w-full text-sm text-left text-gray-600 transition-colors dark:text-gray-400 hover:text-blue-600 dark:hover:text-blue-400"
className={[
"block w-full text-sm text-left transition-colors hover:text-blue-600 dark:hover:text-blue-400"
, activeId === "discord" ? "font-bold text-blue-600 dark:text-blue-400" : "text-gray-600 dark:text-gray-400"
].join(' ')}
>
Join Community
</button>
Expand Down