Add loading indicator to share button

src/app/(isr)/p/[photoId]/layout.tsx

@@ -79,7 +79,7 @@ export default async function PhotoPage({
           key={photo.id}
           photo={photo}
           priority
-          showShare
+          prefetchShare
         />]}
       />
       <SiteGrid

src/components/IconButton.tsx

@@ -7,13 +7,19 @@ export default function IconButton({
   children,
   onClick,
   isLoading,
+  className,
 }: {
   children: React.ReactNode
   onClick?: () => void
   isLoading?: boolean
+  className?: string
 }) {
   return (
-    <span className="min-w-[1.1rem]">
+    <span className={cc(
+      className,
+      'relative inline-flex items-center justify-center',
+      'min-w-[1.2rem] min-h-[1.3rem]',
+    )}>
       {!isLoading
         ? <span
           onClick={onClick}
@@ -25,7 +31,7 @@ export default function IconButton({
           {children}
         </span>
         : <span className={cc(
-          'inline-block translate-x-[2px] translate-y-[1px]',
+          'inline-block translate-y-[1.5px]',
         )}>
           <Spinner size={12} />
         </span>}

src/photo/PhotoLarge.tsx

@@ -3,17 +3,17 @@ import SiteGrid from '@/components/SiteGrid';
 import ImageLarge from '@/components/ImageLarge';
 import { cc } from '@/utility/css';
 import Link from 'next/link';
-import { TbPhotoShare } from 'react-icons/tb';
 import { routeForPhoto } from '@/site/routes';
+import SharePhotoButton from './SharePhotoButton';
 
 export default function PhotoLarge({
   photo,
   priority,
-  showShare,
+  prefetchShare,
 }: {
   photo: Photo
   priority?: boolean
-  showShare?: boolean
+  prefetchShare?: boolean
 }) {
   const renderMiniGrid = (children: JSX.Element) =>
     <div className={cc(
@@ -83,21 +83,12 @@ export default function PhotoLarge({
             )}>
               {photo.takenAtNaiveFormatted}
             </div>
-            {showShare &&
-              <Link
-                href={routeForPhoto(photo, true)}
-                className={cc(
-                  'active:translate-y-[1px]',
-                  'text-gray-500 active:text-gray-600',
-                  'dark:text-gray-400 dark:active:text-gray-300',
-                )}
-                prefetch
-              >
-                <TbPhotoShare
-                  className="translate-x-[-1.5px]"
-                  size={17}
-                />
-              </Link>}
+            <div className="-translate-x-1">
+              <SharePhotoButton
+                photo={photo}
+                prefetch={prefetchShare}
+              />
+            </div>
           </>)}
         </div>}
     />

src/photo/SharePhotoButton.tsx

@@ -0,0 +1,44 @@
+'use client';
+
+import { useRouter } from 'next/navigation';
+import { useEffect, useTransition } from 'react';
+import { Photo } from '.';
+import { routeForPhoto } from '@/site/routes';
+import IconButton from '@/components/IconButton';
+import { TbPhotoShare } from 'react-icons/tb';
+import { cc } from '@/utility/css';
+
+export default function SharePhotoButton({
+  photo,
+  prefetch,
+}: {
+  photo: Photo
+  prefetch?: boolean
+}) {
+  const router = useRouter();
+  
+  const shareRoute = routeForPhoto(photo, true);
+
+  const [isPending, startTransition] = useTransition();
+
+  useEffect(() => {
+    if (prefetch) {
+      router.prefetch(shareRoute);
+    }
+  }, [prefetch, router, shareRoute]);
+
+  return (
+    <IconButton
+      onClick={() => startTransition(() =>
+        router.push(shareRoute))}
+      isLoading={isPending}
+      className={cc(
+        'active:translate-y-[1px]',
+        'text-gray-500 active:text-gray-600',
+        'dark:text-gray-400 dark:active:text-gray-300',
+      )}
+    >
+      <TbPhotoShare size={17} />
+    </IconButton>
+  );
+}

src/site/SiteChecklistClient.tsx

@@ -136,7 +136,7 @@ export default function SiteChecklistClient({
           <InfoBlock className="my-1.5" padding="tight">
             <div className="flex items-center gap-4">
               <span>{secret}</span>
-              <div className="flex items-center gap-1">
+              <div className="flex items-center gap-0.5">
                 <IconButton
                   onClick={() => {
                     navigator.clipboard.writeText(secret);