Update src/app/page.tsx

Merge version_29 into main

src/app/page.tsx

@@ -16,35 +16,52 @@ export default function LandingPage() {
   const [showModal, setShowModal] = useState(false);
   const [showBackToTop, setShowBackToTop] = useState(false);
   const [showViewMoreButton, setShowViewMoreButton] = useState(false);
+  const [scrollDirection, setScrollDirection] = useState<'up' | 'down'>('down');
+  const [lastScrollY, setLastScrollY] = useState(0);
   const viewMoreButtonRef = useRef<HTMLDivElement>(null);
+  const sixthItemRef = useRef<HTMLDivElement>(null);
 
   useEffect(() => {
+    let ticking = false;
+
     const handleScroll = () => {
-      setShowBackToTop(window.scrollY > 300);
+      if (!ticking) {
+        window.requestAnimationFrame(() => {
+          const currentScrollY = window.scrollY;
+          setShowBackToTop(currentScrollY > 300);
+
+          // Determine scroll direction
+          if (currentScrollY > lastScrollY) {
+            setScrollDirection('down');
+          } else {
+            setScrollDirection('up');
+          }
+          setLastScrollY(currentScrollY);
+
+          // Check if 6th item is in view
+          if (sixthItemRef.current) {
+            const rect = sixthItemRef.current.getBoundingClientRect();
+            const isInView = rect.top < window.innerHeight && rect.bottom > 0;
+            const isScrollingDown = scrollDirection === 'down';
+
+            // Show button when 6th item is reached AND scrolling down
+            // Hide button when scrolling back up past the 6th item
+            if (isInView && isScrollingDown) {
+              setShowViewMoreButton(true);
+            } else if (!isInView && scrollDirection === 'up') {
+              setShowViewMoreButton(false);
+            }
+          }
+
+          ticking = false;
+        });
+        ticking = true;
+      }
     };
 
     window.addEventListener('scroll', handleScroll);
     return () => window.removeEventListener('scroll', handleScroll);
-  }, []);
-
-  useEffect(() => {
-    const observer = new IntersectionObserver(
-      ([entry]) => {
-        setShowViewMoreButton(entry.isIntersecting);
-      },
-      { threshold: 0.1 }
-    );
-
-    if (viewMoreButtonRef.current) {
-      observer.observe(viewMoreButtonRef.current);
-    }
-
-    return () => {
-      if (viewMoreButtonRef.current) {
-        observer.unobserve(viewMoreButtonRef.current);
-      }
-    };
-  }, []);
+  }, [lastScrollY, scrollDirection]);
 
   const scrollToGallery = () => {
     const gallerySectionElement = document.getElementById('gallery');
@@ -419,16 +436,19 @@ export default function LandingPage() {
             products={initialDresses}
           />
 
-          {/* View More Button - Positioned after 6th picture, visible when 6th item is in view */}
-          <div ref={viewMoreButtonRef} className="relative mt-0">
-            {showViewMoreButton && (
+          {/* Reference to 6th item for scroll detection */}
+          <div ref={sixthItemRef} className="absolute pointer-events-none" style={{ height: 0, top: 'calc(100% - 500px)' }} />
+
+          {/* More Button - Positioned after 6th picture, visible when 6th item is reached and scrolling down */}
+          <div className="relative mt-0">
+            {showViewMoreButton && scrollDirection === 'down' && (
               <div className="absolute -top-[280px] right-8 lg:right-16 z-30 flex justify-end animate-in fade-in slide-in-from-bottom-4 duration-300">
                 <button
                   onClick={() => setShowModal(true)}
                   className="group relative inline-flex items-center gap-2 px-4 md:px-6 py-2 md:py-3 bg-gradient-to-r from-[#D4AF37] to-[#D4AF37] text-black rounded-lg font-semibold hover:shadow-lg transition-all duration-300 ease-out shadow-lg"
                   aria-label="View More Dresses"
                 >
-                  <span className="text-sm md:text-base">View More Dresses</span>
+                  <span className="text-sm md:text-base">More</span>
                   <ChevronRight className="w-4 h-4 md:w-5 md:h-5 group-hover:translate-x-1 transition-transform" />
                 </button>
               </div>
@@ -660,4 +680,4 @@ export default function LandingPage() {
       </div>
     </ThemeProvider>
   );
-}
+}