From 35f40848335553d13e33b0b160baf7632b0cfb82 Mon Sep 17 00:00:00 2001
From: corgifist <sxuare.science@gmail.com>
Date: Sun, 27 Jul 2025 23:32:45 +0300
Subject: [PATCH] `Project Library` title now fades when scrolling up

---
 src/app/page.tsx                              |  7 ++--
 .../scroll-fading-title/ScrollFadingTitle.tsx | 24 +++++++++++++
 src/components/scroll-fading-title/index.ts   |  3 ++
 .../SidebarTriggerAdjustable.tsx              | 35 +++++++------------
 4 files changed, 44 insertions(+), 25 deletions(-)
 create mode 100644 src/components/scroll-fading-title/ScrollFadingTitle.tsx
 create mode 100644 src/components/scroll-fading-title/index.ts

diff --git a/src/app/page.tsx b/src/app/page.tsx
index 14c0414..0c7a16b 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -32,6 +32,7 @@ import { Sheet, SheetClose, SheetContent, SheetDescription, SheetHeader, SheetTi
 import { Separator } from "@/components/ui/separator";
 import StaticSidebarTrigger from "@/components/static-sidebar-trigger";
 import SidebarTriggerAdjustable from "@/components/sidebar-trigger-adjustable";
+import ScrollFadingTitle from "@/components/scroll-fading-title";
 
 type SortingType = "byCreationDate"
     | "byEditDate"
@@ -491,8 +492,10 @@ export default function Home(): ReactNode {
             <div className="p-5">
                 <div className="flex flex-row items-center gap-2">
                     <StaticSidebarTrigger />
-                    <h2 className="font-bold break-keep text-xl sm:text-2xl md:text-3xl lg:text-4xl leading-none">Project Library</h2>
-                    {projects && <Label className="text-muted-foreground text-sm">(Found {projects.length} projects)</Label>}
+                    <ScrollFadingTitle className="flex flex-row items-center gap-2">
+                        <h2 className="font-bold break-keep text-xl sm:text-2xl md:text-3xl lg:text-4xl leading-none">Project Library</h2>
+                        {projects && <Label className="text-muted-foreground text-sm">(Found {projects.length} projects)</Label>}
+                    </ScrollFadingTitle>
                 </div>
                 <div className="flex flex-col sticky top-safe bg-background gap-2 mt-2 pb-2 pt-2 p-5 w-[100% + 5 * var(--spacing)] z-10 -mx-5">
                     <SidebarTriggerAdjustable>
diff --git a/src/components/scroll-fading-title/ScrollFadingTitle.tsx b/src/components/scroll-fading-title/ScrollFadingTitle.tsx
new file mode 100644
index 0000000..e53e272
--- /dev/null
+++ b/src/components/scroll-fading-title/ScrollFadingTitle.tsx
@@ -0,0 +1,24 @@
+import { ComponentProps, useEffect, useRef, useState } from "react";
+
+const easeFade = (x: number) => (
+    x === 0 ? 0 : Math.pow(2, 10 * x - 10)
+);
+
+export const ScrollFadingTitle = (props: ComponentProps<"div">) => {
+    const elementRef = useRef<HTMLDivElement>(null);
+
+    useEffect(() => {
+        const handleScroll = () => {
+            if (!elementRef.current) return;
+            const opacity = easeFade(1 - (window.scrollY / ( window.innerHeight / 20)));
+            elementRef.current.style.opacity = `${opacity}`;
+        };
+
+        handleScroll();
+        window.addEventListener('scroll', handleScroll);
+
+        return () => window.removeEventListener('scroll', handleScroll);
+    }, [elementRef]);
+
+    return <div style={{opacity: 1}} ref={elementRef} {...props}/>
+};
\ No newline at end of file
diff --git a/src/components/scroll-fading-title/index.ts b/src/components/scroll-fading-title/index.ts
new file mode 100644
index 0000000..f6d3f4f
--- /dev/null
+++ b/src/components/scroll-fading-title/index.ts
@@ -0,0 +1,3 @@
+import { ScrollFadingTitle } from "./ScrollFadingTitle";
+
+export default ScrollFadingTitle;
\ No newline at end of file
diff --git a/src/components/sidebar-trigger-adjustable/SidebarTriggerAdjustable.tsx b/src/components/sidebar-trigger-adjustable/SidebarTriggerAdjustable.tsx
index 085056c..3d02c0f 100644
--- a/src/components/sidebar-trigger-adjustable/SidebarTriggerAdjustable.tsx
+++ b/src/components/sidebar-trigger-adjustable/SidebarTriggerAdjustable.tsx
@@ -4,43 +4,32 @@ import { cn } from "@/lib/utils";
 import { ComponentProps, useEffect, useState } from "react";
 
 const easeSlide = (x: number) => (
-    x
+    1 - Math.pow(1 - x, 3)
 );
 
 export const SidebarTriggerAdjustable = (props: ComponentProps<"div">) => {
-    const [scrollY, setScrollY] = useState(0);
-    const [windowHeight, setWindowHeight] = useState(1);
     const isMobile = useIsMobile();
 
-    let ticking = false;
-
     useEffect(() => {
+        const triggerElement = document.querySelector('div[data-sidebar-trigger="true"]');
+
         const handleScroll = () => {
-            if (!ticking) {
-                window.requestAnimationFrame(() => {
-                    setScrollY(window.scrollY);
-                    ticking = false;
-                });
+            if (!triggerElement) {
+                console.log("triggerElement is null");
+                return;
             }
+            const triggerDiv = triggerElement as HTMLDivElement;
+            const slideAmount = easeSlide(Math.max(0, Math.min(1, window.scrollY / (window.innerHeight / 20))));
+            triggerDiv.style.marginLeft = `calc(var(--spacing) *  ${12 * slideAmount})`;
+            triggerDiv.style.paddingTop = `calc(var(--spacing) * ${(isMobile ? 1 : 3) * slideAmount})`;
         };
-        const handleResize = () => setWindowHeight(window.innerHeight);
-        
-        setWindowHeight(window.innerHeight);
 
         window.addEventListener('scroll', handleScroll);
-        window.addEventListener('resize', handleResize);
 
         return () => {
             window.removeEventListener('scroll', handleScroll);
-            window.removeEventListener('resize', handleResize);
         };
-    }, []);
+    }, [isMobile]);
 
-    let slideAmount = Math.max(0, Math.min(1, scrollY / (windowHeight / 20)));
-    slideAmount = easeSlide(slideAmount);
-
-    return <div {...props} style={{
-        marginLeft: `calc(var(--spacing) *  ${12 * slideAmount})`,
-        marginTop:  `calc(var(--spacing) * ${(isMobile ? 1 : 3) * slideAmount})`
-    }}></div>;
+    return <div data-sidebar-trigger="true" {...props}></div>;
 }
\ No newline at end of file