Refactor GalleryCard to include a skeleton loading state

packages/client/src/components/gallery/GalleryCard.tsx

@@ -5,6 +5,7 @@ import { Fragment, useLayoutEffect, useRef, useState } from "react";
 import { LazyImage } from "./LazyImage.tsx";
 import StyledLink from "./StyledLink.tsx";
 import React from "react";
+import { Skeleton } from "../ui/skeleton.tsx";
 
 function clipTagsWhenOverflow(tags: string[], limit: number) {
     let l = 0;
@@ -87,4 +88,27 @@ function GalleryCardImpl({
     </Card>;
 }
 
+export function GalleryCardSkeleton({
+    tagCount = 20
+}: {
+    tagCount?: number;
+}) {
+    return <Card className="flex h-[200px]">
+        <Skeleton className="rounded-xl overflow-hidden h-[200px] w-[142px] flex-none" />
+        <div className="flex-1 flex flex-col">
+            <CardHeader className="flex-none">
+                <Skeleton className="line-clamp-2 w-1/2 h-4" />
+                <Skeleton className="w-1/4 h-3" />
+            </CardHeader>
+            <CardContent className="flex-1 overflow-hidden">
+                <ul className="flex flex-wrap gap-2 items-baseline content-start">
+                    {Array.from({ length: tagCount }).map((_, i) => <Skeleton key={i}
+                        style={{ width: `${Math.random() * 100 + 50}px` }}
+                    className="h-4" />)}
+                </ul>
+            </CardContent>
+        </div>
+    </Card>
+}
+
 export const GalleryCard = React.memo(GalleryCardImpl);

packages/client/src/components/layout/nav.tsx

@@ -63,7 +63,7 @@ export function NavList() {
     const loginInfo = useLogin();
     const navItems = useNavItems();
 
-    return <aside className="h-dvh flex flex-col fixed">
+    return <aside className="h-dvh flex flex-col">
         <nav className="flex flex-col items-center gap-4 px-2 sm:py-5 flex-1">
             {navItems && <>{navItems} <Separator/> </>}
             <NavItem icon={<SearchIcon className="h-5 w-5" />} to="/search" name="Search" />

packages/client/src/page/contentInfoPage.tsx

@@ -2,11 +2,12 @@ import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/com
 import { useGalleryDoc, useGalleryDocSimilar, useRehashDoc } from "../hook/useGalleryDoc.ts";
 import TagBadge from "@/components/gallery/TagBadge";
 import StyledLink from "@/components/gallery/StyledLink";
-import { Link } from "wouter";
+import { Link, useLocation } from "wouter";
 import { classifyTags } from "../lib/classifyTags.tsx";
 import { DescTagItem, DescItem } from "../components/gallery/DescItem.tsx";
 import { Button } from "@/components/ui/button.tsx";
 import { GalleryCard } from "@/components/gallery/GalleryCard.tsx";
+import { useEffect, useRef } from "react";
 
 export interface ContentInfoPageProps {
     params: {
@@ -14,12 +15,33 @@ export interface ContentInfoPageProps {
     };
 }
 
+function Wrapper({ children }: { children: React.ReactNode }) {
+    const ref = useRef<HTMLDivElement>(null);
+    const [pathname] = useLocation();
+    useEffect(() => {
+        if (ref.current) {
+            ref.current.scrollTo({
+                top: 0,
+                left: 0,
+            });
+        }
+    }, [pathname]);
+
+    return <div className="p-4 overflow-auto h-dvh" ref={ref}>
+        {children}
+    </div>;
+}
+
 export function ContentInfoPage({ params }: ContentInfoPageProps) {
     const { data, error, isLoading } = useGalleryDoc(params.id);
     const rehashDoc = useRehashDoc();
 
     if (isLoading) {
-        return <div className="p-4">Loading...</div>
+        return <div className="p-4 flex items-center justify-center h-full">
+            <span className="animate-pulse text-4xl">
+                Loading...
+            </span>
+        </div>
     }
 
     if (error) {
@@ -36,7 +58,7 @@ export function ContentInfoPage({ params }: ContentInfoPageProps) {
     const contentLocation = `/doc/${params.id}/reader`;
 
     return (
-        <div className="p-4">
+        <Wrapper>
             <Link to={contentLocation}>
                 <div className="m-auto h-[400px] mb-4 flex justify-center items-center flex-none bg-[#272733]
             rounded-xl shadow-lg overflow-hidden">
@@ -85,7 +107,7 @@ export function ContentInfoPage({ params }: ContentInfoPageProps) {
                 </CardContent>
             </Card>
             <SimilarContentCard id={params.id} />
-        </div>
+        </Wrapper>
     );
 }
 
@@ -93,7 +115,7 @@ function SimilarContentCard({
     id,
 }: {
     id: string;
-}){
+}) {
     const { data, error, isLoading } = useGalleryDocSimilar(id);
 
     if (isLoading) {

packages/client/src/page/galleryPage.tsx

@@ -1,6 +1,6 @@
 import { useLocation, useSearch } from "wouter";
 import { Button } from "@/components/ui/button.tsx";
-import { GalleryCard } from "@/components/gallery/GalleryCard.tsx";
+import { GalleryCard, GalleryCardSkeleton } from "@/components/gallery/GalleryCard.tsx";
 import TagBadge from "@/components/gallery/TagBadge.tsx";
 import { useSearchGalleryInfinite } from "../hook/useSearchGallery.ts";
 import { Spinner } from "../components/Spinner.tsx";
@@ -35,8 +35,6 @@ export default function Gallery() {
         overscan: 1,
     });
 
-    
-
     const virtualItems = virtualizer.getVirtualItems();
     useEffect(() => {
         const lastItems = virtualItems.slice(-1);
@@ -53,30 +51,19 @@ export default function Gallery() {
         virtualizer.measure();
     }, [virtualizer, data]);
 
-    if (isLoading) {
+    
-        return <div className="p-4">Loading...</div>
+    const renderContent = () => {
-    }
-    if (error) {
-        return <div className="p-4">Error: {String(error)}</div>
-    }
         if (!data) {
-        return <div className="p-4">No data</div>
+            return null;
         }
-
-
         const isLoadingMore = data && size > 0 && (data[size - 1] === undefined);
-    return (<div className="p-4 grid gap-2 overflow-auto h-dvh items-start content-start" ref={parentRef}>
+        const NoResult = data.reduce((acc, x) => acc + x.data.length, 0) === 0;
-        <Search />
+        
-        {(word || tags) &&
+        if (NoResult) {
-            <div className="bg-primary rounded-full p-1 sticky top-0 shadow-md z-10">
+            return <div className="p-4 text-3xl">No results</div>
-                {word && <span className="text-primary-foreground ml-4">Search: {word}</span>}
-                {tags && <span className="text-primary-foreground ml-4">Tags: <ul className="inline-flex gap-1">{
-                    tags.map(x => <TagBadge tagname={x} key={x} />)}
-                </ul></span>}
-            </div>
         }
-        {data?.length === 0 && <div className="p-4 text-3xl">No results</div>}
+        else {
-        <div className="w-full relative"
+            return <div className="w-full relative overflow-auto h-full"
                 style={{ height: virtualizer.getTotalSize() }}>
                 {// TODO: date based grouping
                     virtualItems.map((item) => {
@@ -110,6 +97,26 @@ export default function Gallery() {
                     })
                 }
             </div>
+        }
+    }
+
+    return (<div className="p-4 grid gap-2 h-dvh overflow-auto items-start content-start" ref={parentRef}>
+        <Search />
+        {(word || tags) &&
+            <div className="bg-primary rounded-full p-1 sticky top-0 shadow-md z-10">
+                {word && <span className="text-primary-foreground ml-4">Search: {word}</span>}
+                {tags && <span className="text-primary-foreground ml-4">Tags: <ul className="inline-flex gap-1">{
+                    tags.map(x => <TagBadge tagname={x} key={x} />)}
+                </ul></span>}
+            </div>
+        }
+        {error && <div className="p-4">Error: {String(error)}</div>}
+        {isLoading && <>
+            <GalleryCardSkeleton />
+            <GalleryCardSkeleton />
+            <GalleryCardSkeleton />
+        </>}
+        {renderContent()}
     </div>
     );
 }

packages/client/src/page/reader/comicPage.tsx

@@ -76,7 +76,7 @@ function ComicViewer({
     }, [curPage, doc.id, totalPage]);
 
     return (
-        <div className="overflow-hidden w-full h-full relative">
+        <div className="overflow-hidden w-full h-dvh relative">
             <div className="absolute left-0 w-1/2 h-full z-10" onMouseDown={() => PageDown(1)} />
             <img
                 ref={currentImageRef}