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familienarchiv/frontend/src/routes/themen/+page.svelte
Marcel 1fd8c2b2d2 feat(themen): show the subtree rollup count on reader surfaces (#698)
The /themen page (box header, child rows, aria-labels) and the dashboard
ThemenWidget now display subtreeDocumentCount instead of the direct
documentCount, so a topic's number reflects its whole sub-topic tree and
matches what /documents?tag=X actually returns. A parent with 0 direct
documents but documents under its children now shows a non-zero total.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-05-31 12:25:52 +02:00

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<script lang="ts">
import * as m from '$lib/paraglide/messages.js';
import BackButton from '$lib/shared/primitives/BackButton.svelte';
import { hasAnyDocuments } from '$lib/shared/utils/tagUtils';
import type { components } from '$lib/generated/api';
type TagTreeNodeDTO = components['schemas']['TagTreeNodeDTO'];
const MAX_VISIBLE_CHILDREN = 5;
let { data }: { data: { tree: TagTreeNodeDTO[] } } = $props();
const visibleTree = $derived.by(() => data.tree.filter(hasAnyDocuments));
</script>
<svelte:head>
<title>{m.themen_widget_title()}</title>
</svelte:head>
<main class="mx-auto max-w-7xl px-4 py-8 sm:px-6 lg:px-8">
<div class="mb-6 flex items-center gap-3">
<BackButton />
<h1 class="font-serif text-2xl font-semibold text-ink">{m.themen_widget_title()}</h1>
</div>
{#if visibleTree.length === 0}
<p class="font-sans text-sm text-ink-3">{m.themen_leer()}</p>
{:else}
<div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-3">
{#each visibleTree as tag (tag.id)}
{@const visibleChildren = (tag.children ?? []).filter(hasAnyDocuments)}
{@const shownChildren = visibleChildren.slice(0, MAX_VISIBLE_CHILDREN)}
{@const hiddenCount = visibleChildren.length - shownChildren.length}
<div class="overflow-hidden rounded-sm border border-line bg-surface shadow-sm">
<div
class="h-1.5 w-full flex-shrink-0"
aria-hidden="true"
style="background: var(--c-tag-{tag.color ?? 'slate'})"
></div>
<a
href="/documents?tag={encodeURIComponent(tag.name)}"
aria-label="{tag.name}{tag.subtreeDocumentCount > 0
? ', ' + m.themen_dokumente({ count: tag.subtreeDocumentCount })
: ''}"
class="flex min-h-[56px] items-center justify-between px-4 pt-4 pb-3 hover:bg-canvas focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none focus-visible:ring-inset"
>
<span class="font-serif text-base font-semibold text-ink">{tag.name}</span>
<span class="mr-1 ml-auto font-sans text-sm text-ink-3 tabular-nums">
{#if tag.subtreeDocumentCount > 0}{tag.subtreeDocumentCount}{/if}
</span>
<span aria-hidden="true" class="h-3.5 w-3.5 flex-shrink-0 text-brand-mint"></span>
</a>
{#if shownChildren.length > 0}
<div class="mx-4 border-t border-line"></div>
{#each shownChildren as child (child.id)}
<a
href="/documents?tag={encodeURIComponent(child.name)}"
class="flex min-h-[44px] items-center justify-between px-4 py-2.5 hover:bg-canvas focus-visible:bg-canvas focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none focus-visible:ring-inset"
>
<span class="font-sans text-sm text-ink">{child.name}</span>
<span class="mr-1 ml-auto font-sans text-xs text-ink-3 tabular-nums">
{#if child.subtreeDocumentCount > 0}{child.subtreeDocumentCount}{/if}
</span>
<span aria-hidden="true" class="h-3 w-3 flex-shrink-0 text-brand-mint"></span>
</a>
{/each}
{#if hiddenCount > 0}
<a
href="/documents?tag={encodeURIComponent(tag.name)}"
class="block min-h-[44px] px-4 py-2.5 font-sans text-sm text-ink-3 hover:bg-canvas hover:text-ink focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:outline-none focus-visible:ring-inset"
>
{m.themen_weitere({ count: hiddenCount })}
</a>
{/if}
{/if}
</div>
{/each}
</div>
{/if}
</main>