Audit of write-actions revealed that send (and edit via realtime UPDATE) are
already optimistic via local state insertion in `useConversationMessages`,
and friend nicknames are pure-local localStorage. Five user-write actions
were waiting on the ~100-200 ms server roundtrip + realtime echo:
* Toggle mute (`setConversationMutedUntil`)
* Toggle mentions-only (`setConversationMentionsOnly`)
* Toggle archive (`setConversationArchived`)
* Pin / unpin message (`pinMessage` / `unpinMessage`)
* Revoke device (`revokeDevice` RPC)
All five now flip local state synchronously and roll back on failure. The
existing realtime subscriptions reconcile canonically (no-op when the
optimistic patch already matches the server row), so this is purely a UX
latency improvement — no protocol or persistence changes.
Reactions (`toggleReaction` / `voteExclusive`) were intentionally skipped
this round: rollback semantics for the exclusive-vote path with multiple
sequential awaits are messy enough to warrant a dedicated pass.
Audited the renderer bundle with rollup-plugin-visualizer. Top offenders
(libsodium-sumo 292KB gz, livekit-client 177KB gz, @supabase 149KB gz)
all have justified usage and no viable swap. Mediapipe + track-processors
are already lazy-loaded into a separate chunk on first BackgroundBlur
activation. Bundle has zero duplicate packages, no moment/lodash/dayjs,
no syntax-highlight libs, no polyfills — already lean from T1+T6.
Added rollup-plugin-visualizer as a dev-dep, gated behind ANALYZE=true
so production builds pay no cost. Run with:
ANALYZE=true pnpm --filter @chat-app/desktop build
to regenerate stats.html (treemap) + stats.json (raw) for future audits.
Switches the ConversationPage chat list from a full O(N) render to
windowed rendering via react-virtuoso. On long histories only the
visible rows (plus a 400px overscan buffer) live in the DOM, ending the
scroll jank and layout thrashing that hit conversations with >500
messages.
Preserved behaviors:
- Newest message visible on open via initialTopMostItemIndex.
- Auto-scroll on send via a pending-count-based effect (the old
setStickToBottom + useLayoutEffect pattern doesn't apply now that
Virtuoso owns the scroll element).
- Realtime auto-follow only when scrolled to bottom (followOutput).
- 'New messages while away' counter + 'jump to newest' pill via
atBottomStateChange.
- Pinned-message / reply / search jumps via virtuosoRef.scrollToIndex;
expands displayCount on the fly if the target is outside the
rendered slice. Flash highlight unchanged.
- Load-older infinite scroll via Virtuoso startReached (replaces the
IntersectionObserver-on-sentinel pattern).
- Per-conversation position memory now keys on row index instead of
pixel scrollTop (the latter isn't meaningful under virtualization).
Also wires the PinnedMessagesPanel onJump callback (previously a TODO
that just closed the panel) into jumpToMessage, since virtualization
made the smooth-scroll-from-pinned UX easy to deliver as a side
benefit.
PIN-unlock used to freeze the renderer for ~1-2 s on mid-hardware while
the moderate-preset Argon2id KDF + sealed-key secretbox open ran on the
main thread. Push that work into a Vite-bundled ESM Web Worker so the
unlock screen stays responsive.
The worker (apps/desktop/src/workers/crypto.worker.ts) bundles its own
libsodium-wrappers-sumo instance and registers a fresh CryptoBackend
inside the worker realm. Client wrapper (apps/desktop/src/lib/cryptoWorker.ts)
spawns a one-shot worker per unlock — workers are cheap, PIN-unlock is
once-per-session, and one-shot avoids the request-id bookkeeping that the
existing decrypt.worker needs for high-volume per-message decrypts.
Falls back to inline main-thread openUserKey when the Worker constructor
is unavailable (vitest's jsdom) or when worker spawn / round-trip fails
(strict CSP). All 14 desktop + 71 shared tests still pass — the existing
loadOrUnlockUserKey test exercises the inline-fallback branch.
Private key bytes are transferred (zero-copy) back to the main thread,
detaching the worker-side ArrayBuffer view on transfer.
Build emits crypto.worker-<hash>.js (~2.5 MB, mostly libsodium WASM glue
duplicated from the main bundle). Acceptable trade-off for the unblocked
UI; a future change could lazy-load libsodium on the main thread to drop
the duplication.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds opt-in (default OFF) auto-lock: after X minutes of no user input
the app calls signOut() (full memory wipe + PIN re-entry on next open).
Settings dropdown (Aus / 5 / 15 / 30 / 60 min) lives in SecurityCenter
below the existing wipe-on-close toggle. The idle timer is mounted in
AppShell via useIdleAutoLock; activity events are throttled to 1 Hz to
avoid timer thrash on rapid mouse movement. The localStorage key is
added to PRESERVE_LOCAL_STORAGE so a wipe never silently disables the
feature.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Fire a no-await profiles query in AuthContext on session establish to absorb
cold-connection latency before the first user-triggered request. Add
loading='lazy' default to the central Avatar component so all off-screen
avatars (chat list, friends list, popovers, message senders) skip eager
Supabase Storage fetches; set loading='eager' on ConversationHeader (active
conv header) and CallParticipantTile inline imgs (both AudioContent and
VideoStub) which are always above-the-fold when visible.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
All 57 exported SVG icon components in icons.tsx are now memoised via
React.memo, giving React permission to skip re-renders when props are
referentially equal. Consumer icon-prop types updated from the legacy
SVGProps (includes string refs) to ComponentPropsWithoutRef<'svg'> so
the MemoExoticComponent return type satisfies TypeScript without casts.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Update globals.css reduced-motion block: 0.01ms → 0.001ms durations
and add scroll-behavior: auto to suppress all transitions/animations
when OS reduced-motion preference is active.
- Gate canvas-confetti burst in GameModal behind matchMedia check so
the particle effect is skipped entirely for users who opt out of motion.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mount useSoundboardSync in SoundboardManagerDialog, thread badges map through
SoundboardCategoryGroup/SoundboardRow, render a cloud-state glyph badge inline
with each row's size/mime metadata, and wrap handleDelete to attempt a
best-effort remote delete via deleteRemoteSound before the local deleteSound call.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a whiteboard branch to the MessageBubble ternary chain that renders
a card with an icon, label, and Öffnen button dispatching the
chatapp:open-whiteboard CustomEvent. ConversationPage now listens for
that event via a useEffect and calls setOpenWhiteboardId to open the
modal.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Hover an image attachment in the composer to reveal a pencil-edit button;
clicking it opens ImageAnnotator and Save replaces the File in attachments[].
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
byGalax