nekomimi.pet
A React component library for rendering common AT Protocol records for applications such as Bluesky and Leaflet.
finish lightbox
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lib/renderers/GrainGalleryRenderer.tsx
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lib/renderers/GrainGalleryRenderer.tsx
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const primaryName = authorDisplayName || authorHandle || "…";
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// Memoize sorted photos to prevent re-sorting on every render
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const sortedPhotos = React.useMemo(
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() => [...photos].sort((a, b) => (a.position ?? 0) - (b.position ?? 0)),
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[photos]
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);
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// Open lightbox
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const openLightbox = React.useCallback((photoIndex: number) => {
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setLightboxPhotoIndex(photoIndex);
···
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window.addEventListener("keydown", handleKeyDown);
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return () => window.removeEventListener("keydown", handleKeyDown);
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}, [lightboxOpen, closeLightbox, goToPrevPhoto, goToNextPhoto]);
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// Memoize sorted photos to prevent re-sorting on every render
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const sortedPhotos = React.useMemo(
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() => [...photos].sort((a, b) => (a.position ?? 0) - (b.position ?? 0)),
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[photos]
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);
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const isSinglePhoto = sortedPhotos.length === 1;
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···
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{isSinglePhoto ? (
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<div style={styles.singlePhotoContainer}>
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<GalleryPhotoItem key={`${sortedPhotos[0].did}-${sortedPhotos[0].rkey}`} photo={sortedPhotos[0]} isSingle={true} />
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<GalleryPhotoItem
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key={`${sortedPhotos[0].did}-${sortedPhotos[0].rkey}`}
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photo={sortedPhotos[0]}
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isSingle={true}
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onClick={() => openLightbox(0)}
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/>
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</div>
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) : (
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<div style={styles.carouselContainer}>
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</button>
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)}
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<div style={styles.photosGrid}>
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{layoutPhotos.map((item) => (
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<GalleryPhotoItem
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key={`${item.did}-${item.rkey}`}
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photo={item}
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isSingle={false}
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span={item.span}
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/>
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))}
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{layoutPhotos.map((item) => {
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const photoIndex = sortedPhotos.findIndex(p => p.did === item.did && p.rkey === item.rkey);
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return (
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<GalleryPhotoItem
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key={`${item.did}-${item.rkey}`}
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photo={item}
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isSingle={false}
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span={item.span}
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onClick={() => openLightbox(photoIndex)}
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/>
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);
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})}
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</div>
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{hasMultiplePages && currentPage < totalPages - 1 && (
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<button
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return photosWithRatios.map((p) => ({ ...p, span: { row: 1, col: 1 } }));
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};
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// Lightbox component for fullscreen image viewing
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const Lightbox: React.FC<{
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photo: GrainGalleryPhoto;
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photoIndex: number;
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totalPhotos: number;
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onClose: () => void;
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onNext: () => void;
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onPrev: () => void;
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}> = ({ photo, photoIndex, totalPhotos, onClose, onNext, onPrev }) => {
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const photoBlob = photo.record.photo;
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const cdnUrl = isBlobWithCdn(photoBlob) ? photoBlob.cdnUrl : undefined;
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const cid = cdnUrl ? undefined : extractCidFromBlob(photoBlob);
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const { url: urlFromBlob, loading: photoLoading, error: photoError } = useBlob(photo.did, cid);
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const url = cdnUrl || urlFromBlob;
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const alt = photo.record.alt?.trim() || "grain.social photo";
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return (
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<div
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style={{
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position: "fixed",
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top: 0,
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left: 0,
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right: 0,
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bottom: 0,
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background: "rgba(0, 0, 0, 0.95)",
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zIndex: 9999,
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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padding: 20,
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}}
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onClick={onClose}
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>
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{/* Close button */}
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<button
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onClick={onClose}
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style={{
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position: "absolute",
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top: 20,
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right: 20,
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width: 40,
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height: 40,
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border: "none",
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borderRadius: "50%",
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background: "rgba(255, 255, 255, 0.1)",
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color: "white",
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fontSize: 24,
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cursor: "pointer",
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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transition: "background 200ms ease",
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}}
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onMouseEnter={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.2)")}
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onMouseLeave={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.1)")}
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aria-label="Close lightbox"
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>
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×
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</button>
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{/* Previous button */}
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{totalPhotos > 1 && (
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<button
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onClick={(e) => {
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e.stopPropagation();
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onPrev();
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}}
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style={{
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position: "absolute",
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left: 20,
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top: "50%",
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transform: "translateY(-50%)",
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width: 50,
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height: 50,
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border: "none",
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borderRadius: "50%",
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background: "rgba(255, 255, 255, 0.1)",
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color: "white",
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fontSize: 24,
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cursor: "pointer",
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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transition: "background 200ms ease",
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}}
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onMouseEnter={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.2)")}
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onMouseLeave={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.1)")}
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aria-label="Previous photo"
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>
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‹
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</button>
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)}
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{/* Next button */}
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{totalPhotos > 1 && (
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<button
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onClick={(e) => {
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e.stopPropagation();
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onNext();
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}}
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style={{
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position: "absolute",
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right: 20,
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top: "50%",
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transform: "translateY(-50%)",
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width: 50,
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height: 50,
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border: "none",
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borderRadius: "50%",
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background: "rgba(255, 255, 255, 0.1)",
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color: "white",
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fontSize: 24,
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cursor: "pointer",
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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transition: "background 200ms ease",
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}}
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onMouseEnter={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.2)")}
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onMouseLeave={(e) => (e.currentTarget.style.background = "rgba(255, 255, 255, 0.1)")}
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aria-label="Next photo"
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>
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›
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</button>
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)}
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{/* Image */}
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<div
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style={{
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maxWidth: "90vw",
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maxHeight: "90vh",
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display: "flex",
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alignItems: "center",
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justifyContent: "center",
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}}
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onClick={(e) => e.stopPropagation()}
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>
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{url ? (
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<img
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src={url}
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alt={alt}
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style={{
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maxWidth: "100%",
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maxHeight: "100%",
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objectFit: "contain",
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borderRadius: 8,
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}}
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/>
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) : (
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<div
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style={{
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color: "white",
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fontSize: 16,
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textAlign: "center",
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}}
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>
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{photoLoading ? "Loading…" : photoError ? "Failed to load" : "Unavailable"}
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</div>
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)}
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</div>
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{/* Photo counter */}
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{totalPhotos > 1 && (
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<div
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style={{
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position: "absolute",
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bottom: 20,
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left: "50%",
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transform: "translateX(-50%)",
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color: "white",
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fontSize: 14,
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background: "rgba(0, 0, 0, 0.5)",
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padding: "8px 16px",
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borderRadius: 20,
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}}
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>
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{photoIndex + 1} / {totalPhotos}
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</div>
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)}
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</div>
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);
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};
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const GalleryPhotoItem: React.FC<{
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photo: GrainGalleryPhoto;
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isSingle: boolean;
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span?: { row: number; col: number };
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}> = ({ photo, isSingle, span }) => {
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onClick?: () => void;
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}> = ({ photo, isSingle, span, onClick }) => {
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const [showAltText, setShowAltText] = React.useState(false);
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const photoBlob = photo.record.photo;
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const cdnUrl = isBlobWithCdn(photoBlob) ? photoBlob.cdnUrl : undefined;
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background: `var(--atproto-color-image-bg)`,
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// Only apply aspect ratio for single photos; grid photos fill their cells
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...(isSingle && aspect ? { aspectRatio: aspect } : {}),
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cursor: onClick ? "pointer" : "default",
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}}
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onClick={onClick}
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>
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{url ? (
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<img src={url} alt={alt} style={isSingle ? styles.photo : styles.photoGrid} />