feat(frontend): enlarge cluster images in a preview lightbox
deploy / deploy (push) Successful in 36s
deploy / deploy (push) Successful in 36s
The duplicate cluster view only showed 96px thumbnails, too small to tell near-duplicates apart. Add a zoom button per tile that opens a lightbox showing the full preview — the same image the single-file viewer uses — and pages across the cluster with arrows/Esc. The zoom button stops propagation so it doesn't also reassign the cluster's "keep" selection.
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@@ -0,0 +1,252 @@
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<script lang="ts">
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import { get } from 'svelte/store';
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import { untrack } from 'svelte';
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import { authStore } from '$lib/stores/auth';
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import type { File } from '$lib/api/types';
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interface Props {
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/** Files to page through (e.g. a duplicate cluster). */
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files: File[];
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/** Id to open first. */
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startId: string;
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onClose: () => void;
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}
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let { files, startId, onClose }: Props = $props();
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// Resolve the starting index once. The lightbox is remounted on each open, so
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// the props are effectively init-only — untrack acknowledges that read.
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let index = $state(untrack(() => Math.max(0, files.findIndex((f) => f.id === startId))));
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let src = $state<string | null>(null);
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let failed = $state(false);
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let current = $derived(files[index]);
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let hasPrev = $derived(index > 0);
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let hasNext = $derived(index < files.length - 1);
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// Load the full preview — the same image the single-file viewer shows, so the
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// user can actually tell duplicates apart instead of squinting at thumbnails.
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// Auth-gated, rendered from a blob; re-runs when the index changes.
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$effect(() => {
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const f = files[index];
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if (!f) return;
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const token = get(authStore).accessToken;
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let objectUrl: string | null = null;
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let cancelled = false;
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src = null;
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failed = false;
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fetch(`/api/v1/files/${f.id}/preview`, {
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headers: token ? { Authorization: `Bearer ${token}` } : {}
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})
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.then((res) => (res.ok ? res.blob() : null))
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.then((blob) => {
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if (cancelled || !blob) {
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if (!cancelled) failed = true;
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return;
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}
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objectUrl = URL.createObjectURL(blob);
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src = objectUrl;
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})
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.catch(() => {
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if (!cancelled) failed = true;
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});
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return () => {
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cancelled = true;
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if (objectUrl) URL.revokeObjectURL(objectUrl);
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};
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});
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function prev() {
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if (hasPrev) index -= 1;
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}
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function next() {
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if (hasNext) index += 1;
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}
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function onKeydown(e: KeyboardEvent) {
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if (e.key === 'Escape') onClose();
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else if (e.key === 'ArrowLeft') prev();
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else if (e.key === 'ArrowRight') next();
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}
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</script>
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<svelte:window onkeydown={onKeydown} />
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<!-- Close only when the backdrop itself is clicked (not the image or controls);
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Escape and the × button close from anywhere. -->
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<!-- svelte-ignore a11y_click_events_have_key_events -->
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<div
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class="backdrop"
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role="dialog"
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aria-modal="true"
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aria-label="Enlarged preview"
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tabindex="-1"
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onclick={(e) => {
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if (e.target === e.currentTarget) onClose();
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}}
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>
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<button class="close" onclick={onClose} aria-label="Close">
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<svg width="22" height="22" viewBox="0 0 22 22" fill="none" aria-hidden="true">
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<path
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d="M6 6l10 10M16 6L6 16"
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stroke="currentColor"
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stroke-width="2"
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stroke-linecap="round"
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/>
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</svg>
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</button>
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<div class="stage">
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{#if src}
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<img class="img" {src} alt={current?.original_name ?? ''} />
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{:else if failed}
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<div class="ph failed">Failed to load preview</div>
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{:else}
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<div class="ph loading">Loading…</div>
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{/if}
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{#if hasPrev}
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<button class="nav prev" onclick={prev} aria-label="Previous">
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<svg width="20" height="20" viewBox="0 0 20 20" fill="none" aria-hidden="true">
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<path
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d="M12 4L6 10L12 16"
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stroke="currentColor"
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stroke-width="2"
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stroke-linecap="round"
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stroke-linejoin="round"
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/>
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</svg>
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</button>
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{/if}
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{#if hasNext}
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<button class="nav next" onclick={next} aria-label="Next">
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<svg width="20" height="20" viewBox="0 0 20 20" fill="none" aria-hidden="true">
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<path
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d="M8 4L14 10L8 16"
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stroke="currentColor"
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stroke-width="2"
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stroke-linecap="round"
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stroke-linejoin="round"
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/>
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</svg>
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</button>
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{/if}
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</div>
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<div class="caption">
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<span class="name" title={current?.original_name ?? ''}>{current?.original_name ?? '—'}</span>
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<span class="pos">{index + 1} / {files.length}</span>
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</div>
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</div>
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<style>
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.backdrop {
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position: fixed;
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inset: 0;
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z-index: 100;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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gap: 10px;
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padding: 16px;
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background-color: rgba(0, 0, 0, 0.88);
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}
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.close {
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position: absolute;
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top: 12px;
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right: 12px;
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width: 38px;
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height: 38px;
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display: flex;
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align-items: center;
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justify-content: center;
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border-radius: 50%;
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border: none;
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background-color: rgba(0, 0, 0, 0.5);
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color: #fff;
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cursor: pointer;
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}
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.close:hover {
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background-color: rgba(0, 0, 0, 0.8);
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}
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.stage {
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position: relative;
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display: flex;
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align-items: center;
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justify-content: center;
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max-width: 100%;
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min-height: 0;
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flex: 1;
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}
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.img {
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max-width: 100%;
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max-height: 100%;
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object-fit: contain;
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display: block;
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border-radius: 6px;
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}
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.ph {
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display: flex;
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align-items: center;
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justify-content: center;
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min-width: 220px;
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min-height: 220px;
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color: var(--color-text-muted);
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font-size: 0.9rem;
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}
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.ph.failed {
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color: var(--color-danger);
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}
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.nav {
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position: absolute;
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top: 50%;
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transform: translateY(-50%);
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width: 44px;
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height: 44px;
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border-radius: 50%;
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border: none;
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background-color: rgba(0, 0, 0, 0.55);
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color: #fff;
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display: flex;
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align-items: center;
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justify-content: center;
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cursor: pointer;
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transition: background-color 0.15s;
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}
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.nav:hover {
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background-color: rgba(0, 0, 0, 0.85);
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}
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.nav.prev {
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left: 8px;
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}
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.nav.next {
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right: 8px;
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}
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.caption {
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display: flex;
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align-items: center;
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gap: 10px;
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max-width: 100%;
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color: var(--color-text-primary);
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font-size: 0.85rem;
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flex-shrink: 0;
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}
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.caption .name {
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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.caption .pos {
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color: var(--color-text-muted);
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flex-shrink: 0;
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}
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</style>
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