feat(eventsnap): UX review batch-3 — feed virtualization, a11y/UX fixes, shared primitives

Frontend
- Feed: DOM-windowing via @tanstack/svelte-virtual (new VirtualFeed). The window
  virtualizer keeps the sticky header, pull-to-refresh, infinite-scroll sentinel and
  bottom nav working. List = dynamic measured heights keyed by upload id +
  anchorTo:start so an SSE prepend doesn't jump a scrolled reader; grid = measured
  square rows. Drops the content-visibility band-aid and the old FeedGrid.
  measureElement(null) on row unmount prevents ResizeObserver retention; stable
  option callbacks + guarded setOptions avoid O(n) re-measure on like/comment patches.
- Global: viewport-fit=cover (activates safe-area insets), lang=de, PWA manifest +
  maskable icon + apple-touch metas, prefers-reduced-motion, safe-area-top headers.
- Feed reactivity: like/comment SSE patch the single card in place; upload-processed
  debounced in-place merge; IntersectionObserver leak fixed; shared 60s clock.
- CLS: list cards reserve the skeleton aspect box.
- Destructive actions (promote/demote/unban, gallery release) routed through
  ConfirmSheet (host + admin).
- Export OOM: streamed download via single-use ticket instead of res.blob().
- Shared primitives: IconButton (44px hit area), scrollLock action; UploadSheet a11y.
- Polish: api timeout + non-JSON guard, focus-trap offsetParent fix, pull-to-refresh
  passive:false + guards, diashow keyboard a11y, Toaster assertive errors, dark-mode
  gaps, aria-pressed on like/chip state, CameraCapture mic-on-video + retry,
  ConfirmSheet spinner, upload beforeunload warning, emoji->SVG icons.

Backend
- social.rs: like/comment SSE broadcasts now carry the fresh count so feed clients
  patch one card in place instead of refetching page 1.
- admin.rs / main.rs: supporting changes for the above.

Verified: svelte-check 0 errors, frontend build clean, /feed SSR 200. Runtime feed
scroll-feel validation still owed (documented in FOLLOWUPS.md).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
fabi
2026-06-30 19:16:48 +02:00
parent bbec815854
commit e79e020566
42 changed files with 1245 additions and 328 deletions

View File

@@ -6,6 +6,7 @@
import { toast, toastError } from '$lib/toast-store';
import ConfirmSheet from '$lib/components/ConfirmSheet.svelte';
import Modal from '$lib/components/Modal.svelte';
import IconButton from '$lib/components/IconButton.svelte';
interface StatsDto {
user_count: number;
@@ -136,6 +137,24 @@
const myRole = getRole();
// Generic confirm-then-run for irreversible / privilege-changing actions
// (promote, demote, unban, release gallery). Reuses the shared ConfirmSheet.
interface PendingConfirm {
title: string;
message: string;
confirmLabel: string;
tone: 'default' | 'danger';
run: () => Promise<void>;
}
let confirmAction = $state<PendingConfirm | null>(null);
async function runConfirmAction() {
const action = confirmAction;
if (!action) return;
await action.run();
confirmAction = null;
}
onMount(async () => {
const token = getToken();
const role = getRole();
@@ -173,7 +192,20 @@
}
}
// Keys rendered as number inputs — used to reject empty/invalid numeric saves.
const NUMBER_KEYS = new Set(
CONFIG_GROUPS.flatMap((g) => g.fields.filter((f) => f.kind === 'number').map((f) => f.key))
);
async function saveConfig() {
// Don't let a cleared number field persist as an empty/NaN config value.
for (const key of NUMBER_KEYS) {
const v = configDraft[key];
if (v !== undefined && v !== config[key] && (String(v).trim() === '' || !Number.isFinite(Number(v)))) {
toastError(new Error('Bitte gib für alle Zahlenfelder einen gültigen Wert ein.'));
return;
}
}
saving = true;
try {
const changes: Record<string, string> = {};
@@ -323,6 +355,17 @@
}
</script>
<!-- Confirmation for irreversible / privilege-changing actions (promote/demote/unban/release). -->
<ConfirmSheet
open={confirmAction !== null}
title={confirmAction?.title ?? ''}
message={confirmAction?.message ?? ''}
confirmLabel={confirmAction?.confirmLabel ?? 'Bestätigen'}
tone={confirmAction?.tone ?? 'default'}
onConfirm={runConfirmAction}
onCancel={() => (confirmAction = null)}
/>
<!-- PIN reset confirmation — pure yes/no, uses the shared ConfirmSheet. -->
<ConfirmSheet
open={pinResetTarget !== null}
@@ -380,17 +423,13 @@
<div class="min-h-screen bg-gray-50 pb-24 dark:bg-gray-950">
<!-- Header -->
<div class="border-b border-gray-200 bg-white dark:border-gray-800 dark:bg-gray-900">
<div class="border-b border-gray-200 bg-white pt-[env(safe-area-inset-top)] dark:border-gray-800 dark:bg-gray-900">
<div class="mx-auto flex max-w-3xl items-center gap-3 px-4 py-4">
<button
onclick={() => goto('/account')}
class="flex h-9 w-9 shrink-0 items-center justify-center rounded-full text-gray-500 transition hover:bg-gray-100 dark:text-gray-400 dark:hover:bg-gray-800"
aria-label="Zurück"
>
<IconButton label="Zurück" onclick={() => goto('/account')} class="shrink-0">
<svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
<path stroke-linecap="round" stroke-linejoin="round" d="M10.5 19.5L3 12m0 0l7.5-7.5M3 12h18" />
</svg>
</button>
</IconButton>
<h1 class="text-xl font-bold text-gray-900 dark:text-gray-100">Admin-Dashboard</h1>
</div>
</div>
@@ -414,7 +453,7 @@
{#if loading}
<div class="py-16 text-center text-gray-400 dark:text-gray-500">Laden…</div>
{:else if error}
<div class="rounded-lg bg-red-50 p-4 text-sm text-red-700">{error}</div>
<div role="alert" class="rounded-lg bg-red-50 p-4 text-sm text-red-700 dark:bg-red-950/40 dark:text-red-300">{error}</div>
{:else}
<!-- ── Stats tab ────────────────────────────────────────────────── -->
@@ -500,6 +539,8 @@
id={field.key}
type="number"
step="any"
min="0"
inputmode="decimal"
bind:value={configDraft[field.key]}
class="w-full rounded-lg border border-gray-300 bg-white px-3 py-2 text-sm text-gray-900 focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-200 dark:border-gray-700 dark:bg-gray-900 dark:text-gray-100"
/>
@@ -532,7 +573,13 @@
<div class="rounded-xl border border-gray-200 bg-white p-5 dark:border-gray-700 dark:bg-gray-800">
<h3 class="mb-3 font-semibold text-gray-900 dark:text-gray-100">Galerie</h3>
<button
onclick={releaseGallery}
onclick={() => (confirmAction = {
title: 'Galerie freigeben?',
message: 'Gäste können dann alle Fotos herunterladen. Das kann nicht rückgängig gemacht werden.',
confirmLabel: 'Freigeben',
tone: 'danger',
run: releaseGallery
})}
class="rounded-lg bg-blue-600 px-4 py-2 text-sm font-medium text-white transition hover:bg-blue-700 dark:bg-blue-500 dark:hover:bg-blue-400"
>
Galerie freigeben
@@ -625,17 +672,35 @@
<div class="flex shrink-0 flex-wrap justify-end gap-1.5">
{#if user.role !== 'admin'}
{#if user.is_banned}
<button onclick={() => unban(user)} class="rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-medium text-gray-700 hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-200 dark:hover:bg-gray-600">
<button onclick={() => (confirmAction = {
title: 'Sperre aufheben?',
message: `${user.display_name} kann danach wieder hochladen, liken und kommentieren.`,
confirmLabel: 'Entsperren',
tone: 'default',
run: () => unban(user)
})} class="rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-medium text-gray-700 hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-200 dark:hover:bg-gray-600">
Entsperren
</button>
{:else}
{#if user.role === 'guest'}
<button onclick={() => promoteToHost(user)} class="rounded-lg bg-blue-50 px-3 py-1.5 text-xs font-medium text-blue-700 hover:bg-blue-100 dark:bg-blue-900/40 dark:text-blue-200 dark:hover:bg-blue-900/60">
<button onclick={() => (confirmAction = {
title: 'Zum Host befördern?',
message: `${user.display_name} erhält Host-Rechte: sperren, PIN zurücksetzen und Galerie verwalten. Das lässt sich nur durch Degradieren rückgängig machen.`,
confirmLabel: 'Befördern',
tone: 'default',
run: () => promoteToHost(user)
})} class="rounded-lg bg-blue-50 px-3 py-1.5 text-xs font-medium text-blue-700 hover:bg-blue-100 dark:bg-blue-900/40 dark:text-blue-200 dark:hover:bg-blue-900/60">
Host
</button>
{/if}
{#if user.role === 'host'}
<button onclick={() => demoteToGuest(user)} class="rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-medium text-gray-700 hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-200 dark:hover:bg-gray-600">
<button onclick={() => (confirmAction = {
title: 'Zum Gast degradieren?',
message: `${user.display_name} verliert alle Host-Rechte.`,
confirmLabel: 'Degradieren',
tone: 'danger',
run: () => demoteToGuest(user)
})} class="rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-medium text-gray-700 hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-200 dark:hover:bg-gray-600">
Degradieren
</button>
{/if}