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feat: add floating "scroll-to-top button" with smooth scrolling #615

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feat: add floating "scroll-to-top button" with smooth scrolling #615

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50 changes: 45 additions & 5 deletions client/src/components/scrolltotop.js
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Original file line number Diff line number Diff line change
@@ -1,16 +1,56 @@
import { useEffect } from "react";
import { useEffect, useState } from "react";
import { useLocation } from "react-router-dom";
import "../pages/ScrollToTop.css";

export default function ScrollToTop() {
const { pathname } = useLocation();
const [isVisible, setIsVisible] = useState(false);

// Existing route-change behavior
useEffect(() => {
window.scrollTo({
top: 0,
left: 0,
behavior: "smooth"
top: 0,
left: 0,
behavior: "smooth",
});
}, [pathname]);

return null;
// Show button after scrolling 300px
useEffect(() => {
const toggleVisibility = () => {
if (window.scrollY > 300) {
setIsVisible(true);
} else {
setIsVisible(false);
}
};

window.addEventListener("scroll", toggleVisibility);

return () => {
window.removeEventListener("scroll", toggleVisibility);
};
}, []);

// Scroll back to top
const scrollToTop = () => {
window.scrollTo({
top: 0,
behavior: "smooth",
});
};

return (
<>
{isVisible && (
<button
className="scroll-to-top"
onClick={scrollToTop}
aria-label="Scroll to top"
>
↑
</button>
)}
</>
);
}