fix(logout): clear the call-volume list and settings-sync stamp (#347)

Logout left lotus-per-user-volume (Element Call's per-person volume map:
whom the previous user called and turned up/down; same origin on the web)
and settings-sync-meta:<userId> (a key naming the account) in
localStorage. clearPlaintextCaches now removes both; device preferences
(`settings`) are kept as before.

Verified: after joining/leaving a call and logging out via Settings, both
keys are gone (unit test added).

Fixes #347

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/features/room/message/ForwardMessageDialog.tsx

@@ -48,7 +48,6 @@ import {
   addRecentForwardTarget,
 } from '../../../state/recentForwardTargets';
 import { buildForwardContent, buildPlaintextAttachmentContent } from './forwardContent';
-import { useLocalRoomNames } from '../../../hooks/useRoomMeta';
 
 type RoomRowProps = {
   room: Room;
@@ -59,7 +58,6 @@ type RoomRowProps = {
   sending: boolean;
 };
 function RoomRow({ room, dm, useAuthentication, selected, onToggle, sending }: RoomRowProps) {
-  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const avatarMxc = room.getMxcAvatarUrl();
   const avatarUrl = avatarMxc
@@ -99,7 +97,7 @@ function RoomRow({ room, dm, useAuthentication, selected, onToggle, sending }: R
     >
       <Box direction="Column">
         <Text size="T300" truncate>
-          {localNames[room.roomId] ?? room.name}
+          {room.name}
         </Text>
         {dm && (
           <Text size="T200" priority="300" truncate>
@@ -214,7 +212,6 @@ function RecentChip({
   onToggle: () => void;
   sending: boolean;
 }) {
-  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const avatarMxc = room.getMxcAvatarUrl();
   const avatarUrl = avatarMxc
@@ -243,7 +240,7 @@ function RecentChip({
       }
     >
       <Text size="B300" truncate style={{ maxWidth: toRem(120) }}>
-        {localNames[room.roomId] ?? room.name}
+        {room.name}
       </Text>
     </Chip>
   );
@@ -255,7 +252,6 @@ type Props = {
 };
 
 export function ForwardMessageDialog({ mEvent, onClose }: Props) {
-  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const modalStyle = useModalStyle(400);
   const directs = useAtomValue(mDirectAtom);
@@ -300,10 +296,8 @@ export function ForwardMessageDialog({ mEvent, onClose }: Props) {
   const filtered = useMemo(() => {
     if (!query) return allRooms;
     const q = query.toLowerCase();
-    return allRooms.filter((r) =>
-      [r.name, localNames[r.roomId]].some((nm) => nm?.toLowerCase().includes(q)),
-    );
-  }, [allRooms, query, localNames]);
+    return allRooms.filter((r) => r.name.toLowerCase().includes(q));
+  }, [allRooms, query]);
 
   // Resolve recent target ids to still-joined rooms (drop ones left/gone).
   const recentRooms = useMemo(

src/app/features/search/Search.tsx

@@ -37,7 +37,6 @@ import {
   useAsyncSearch,
   UseAsyncSearchOptions,
 } from '../../hooks/useAsyncSearch';
-import { useLocalRoomNames } from '../../hooks/useRoomMeta';
 import { useAllJoinedRoomsSet, useGetRoom } from '../../hooks/useGetRoom';
 import { RoomAvatar, RoomIcon } from '../../components/room-avatar';
 import {
@@ -158,20 +157,17 @@ export function Search({ requestClose }: SearchProps) {
   const topActiveRooms = useTopActiveRooms(searchRoomType, rooms, directs, spaces);
   const targetRooms = useSearchTargetRooms(searchRoomType, rooms, directs, spaces);
 
-  const localNames = useLocalRoomNames();
   const getTargetStr: SearchItemStrGetter<string> = useCallback(
     (roomId: string) => {
       const roomName = getRoom(roomId)?.name ?? roomId;
-      // [Gitea #336] Match the user's own "Rename for me" name as well.
-      const names = localNames[roomId] ? [localNames[roomId], roomName] : [roomName];
       if (mDirects.has(roomId)) {
         const targetUserId = getDmUserId(roomId, getRoom, mx.getSafeUserId());
         const targetUsername = targetUserId && getMxIdLocalPart(targetUserId);
-        if (targetUsername) return [...names, targetUsername];
+        if (targetUsername) return [roomName, targetUsername];
       }
-      return names.length === 1 ? names[0] : names;
+      return roomName;
     },
-    [getRoom, mDirects, mx, localNames],
+    [getRoom, mDirects, mx],
   );
 
   const [result, search, resetSearch] = useAsyncSearch(targetRooms, getTargetStr, SEARCH_OPTIONS);
@@ -392,10 +388,8 @@ export function Search({ requestClose }: SearchProps) {
                           <Box grow="Yes" alignItems="Center" gap="100">
                             <Text size="T400" truncate>
                               {queryHighlighRegex
-                                ? highlightText(queryHighlighRegex, [
-                                    localNames[room.roomId] ?? room.name,
-                                  ])
-                                : (localNames[room.roomId] ?? room.name)}
+                                ? highlightText(queryHighlighRegex, [room.name])
+                                : room.name}
                             </Text>
                             {dmUsername && (
                               <Text as="span" size="T200" priority="300" truncate>

src/app/hooks/useRoomMeta.ts

@@ -102,22 +102,6 @@ export const useLocalRoomName = (room: Room): string => {
   return localNames[room.roomId] ?? name;
 };
 
-/**
- * [Gitea #336] The whole "Rename for me" map, for lists that show many rooms
- * (quick switcher, forward/share pickers) so they use the name the user sees in
- * the sidebar, not the server name.
- */
-export const useLocalRoomNames = (): Readonly<Record<string, string>> => {
-  const mx = useMatrixClient();
-  return roomNamesStore.useValue(mx);
-};
-
-/** Non-hook read for notification paths (toast / OS notification titles). */
-export const getLocalRoomName = (
-  mx: ReturnType<typeof useMatrixClient>,
-  roomId: string,
-): string | undefined => roomNamesStore.getLatest(mx)[roomId];
-
 export const useHasLocalRoomName = (roomId: string): boolean => {
   const mx = useMatrixClient();
   const localNames = roomNamesStore.useValue(mx);

src/app/pages/client/ClientNonUIFeatures.tsx

@@ -14,7 +14,6 @@ import {
   ThreadEvent,
 } from 'matrix-js-sdk';
 import { useNotificationsQuiet } from '../../hooks/useNotificationsQuiet';
-import { getLocalRoomName } from '../../hooks/useRoomMeta';
 import { roomToUnreadAtom } from '../../state/room/roomToUnread';
 import NotificationSound from '../../../../public/sound/notification.ogg';
 import InviteSound from '../../../../public/sound/invite.ogg';
@@ -640,8 +639,7 @@ function MessageNotifications() {
         const avatarMxc =
           room.getAvatarFallbackMember()?.getMxcAvatarUrl() ?? room.getMxcAvatarUrl();
         notify({
-          // [Gitea #336] the user's own "Rename for me" name when they set one
-          roomName: getLocalRoomName(mx, room.roomId) ?? room.name ?? 'Unknown',
+          roomName: room.name ?? 'Unknown',
           roomAvatar: avatarMxc
             ? (mxcUrlToHttp(mx, avatarMxc, useAuthentication, 96, 96, 'crop') ?? undefined)
             : undefined,
@@ -810,7 +808,7 @@ function ReminderMonitor() {
         if (!firedRef.current.has(key)) {
           firedRef.current.add(key);
           const room = mx.getRoom(r.roomId);
-          const roomName = getLocalRoomName(mx, r.roomId) ?? room?.name ?? 'Unknown Room';
+          const roomName = room?.name ?? 'Unknown Room';
           // Reminders for E2EE rooms carry no text (account data is server-
           // readable), so resolve the body from the local timeline at fire time.
           const localBody = room?.findEventById(r.eventId)?.getContent()?.body;

src/app/pages/client/share/Share.tsx

@@ -38,7 +38,6 @@ import {
 import { BlockType } from '../../../components/editor';
 import { bytesToSize } from '../../../utils/common';
 import { getHomePath } from '../../pathUtils';
-import { useLocalRoomNames } from '../../../hooks/useRoomMeta';
 
 type Shared = { payload: SharePayload; files: File[] };
 
@@ -48,7 +47,6 @@ type Shared = { payload: SharePayload; files: File[] };
  * as the draft) — the user still presses Send.
  */
 export function Share() {
-  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const navigate = useNavigate();
   const { navigateRoom } = useRoomNavigate();
@@ -71,12 +69,8 @@ export function Share() {
       .filter((r) => r.getMyMembership() === 'join' && !r.isSpaceRoom())
       .sort((a, b) => (b.getLastActiveTimestamp() ?? 0) - (a.getLastActiveTimestamp() ?? 0));
     const q = query.trim().toLowerCase();
-    return q
-      ? all.filter((r) =>
-          [r.name, localNames[r.roomId]].some((nm) => nm?.toLowerCase().includes(q)),
-        )
-      : all;
-  }, [mx, query, localNames]);
+    return q ? all.filter((r) => r.name.toLowerCase().includes(q)) : all;
+  }, [mx, query]);
 
   // Written straight into the room's draft atoms so its composer shows the
   // upload board + text as soon as it mounts.
@@ -216,7 +210,6 @@ function ShareRoomRow({
   disabled: boolean;
   onPick: (room: Room) => void;
 }) {
-  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const avatarMxc = room.getMxcAvatarUrl();
   const avatarUrl = avatarMxc
@@ -244,7 +237,7 @@ function ShareRoomRow({
     >
       <Box direction="Column">
         <Text size="T300" truncate>
-          {localNames[room.roomId] ?? room.name}
+          {room.name}
         </Text>
         {dm && (
           <Text size="T200" priority="300" truncate>

src/app/state/plaintextCaches.test.ts

@@ -83,3 +83,14 @@ test('clearPlaintextCaches wipes drafts (#41) and the status message (#204) but
   assert.ok(!removed.includes('cinny_session'), 'session key not this module’s concern');
   assert.ok(store.has('cinny_session'));
 });
+
+test('clearPlaintextCaches removes the call-volume list and the settings-sync stamp (#347)', () => {
+  store.clear();
+  store.set('lotus-per-user-volume', '{"@bob:server":0.3}');
+  store.set('settings-sync-meta:@me:server', '{"lastSyncedAt":1}');
+  store.set('settings', '{}');
+  clearPlaintextCaches('@me:server');
+  assert.equal(store.has('lotus-per-user-volume'), false);
+  assert.equal(store.has('settings-sync-meta:@me:server'), false);
+  assert.equal(store.has('settings'), true, 'device preferences are kept');
+});

src/app/state/plaintextCaches.ts

@@ -47,6 +47,8 @@ const clearMsgDrafts = (): void => {
  * - `cinny_recent_gifs_v1` / `cinny_recent_stickers_v1` — media the user sent
  * - `navToActivePath<userId>` — per-space last-visited room paths (needs userId)
  * - `lotus_outbox_v1` — decrypted content of messages not yet sent ([Gitea #112])
+ * - `lotus-per-user-volume`, `settings-sync-meta:<userId>` — whom you adjusted in
+ *   calls, and a key naming the account ([Gitea #347])
  * - `draft-msg-*` — unsent composer drafts (decrypted message text, unscoped by
  *   user — see [Gitea #41]; previously deliberately preserved across logout
  *   (N98), which let the next account on this device see/send a prior user's
@@ -92,6 +94,24 @@ const clearStatusMessage = (): void => {
   });
 };
 
+/**
+ * [Gitea #347] Per-person residue that isn't message text but still says whom
+ * the previous user dealt with: Element Call's per-user volume memory (same
+ * origin on the web — element-call `lotusVolumeMemory.ts`) and the settings-sync
+ * stamp, whose key names the account.
+ */
+export const CALL_VOLUME_KEY = 'lotus-per-user-volume';
+const clearCallVolumesAndSyncMeta = (userId?: string): void => {
+  const keys = [CALL_VOLUME_KEY, ...(userId ? [`settings-sync-meta:${userId}`] : [])];
+  keys.forEach((key) => {
+    try {
+      localStorage.removeItem(key);
+    } catch {
+      // best-effort
+    }
+  });
+};
+
 export const clearPlaintextCaches = (userId?: string): void => {
   clearTranslationCache();
   clearScheduledMessages();
@@ -103,5 +123,6 @@ export const clearPlaintextCaches = (userId?: string): void => {
   clearOutbox();
   clearCallSession();
   clearStatusMessage();
+  clearCallVolumesAndSyncMeta(userId);
   if (userId) clearNavToActivePathStore(userId);
 };