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feat(nav): draft indicator on room-nav items

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Composer drafts persist per room, but nothing in the room list showed
which OTHER rooms had an unsent draft. Add a subtle chat-bubble icon on a
room's nav item when it has a message draft (and isn't the open room), so
half-written messages elsewhere are visible at a glance.

- Shared pure helper hasMsgDraft (utils/draft.ts, unit-tested) replaces
  the inline emptiness check; the composer DraftIndicator now reuses it.
- RoomNavItem reads a memoized selectAtom(draftAtom, hasMsgDraft) so a row
  re-renders only when its draft flag flips (the draft atom is written on
  room-leave, not per keystroke). Uses Icons.Message (pencil is reserved
  for the custom-name marker), muted, aria-label "Unsent draft".
- useHydrateMsgDrafts (mounted in ClientNonUIFeatures) pre-fills the
  per-room draft atoms from draft-msg-* localStorage on startup, so
  indicators are correct after a page reload, not only after revisiting a
  room. Thread drafts (key contains ::) are skipped; room-level only.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
jared
2026-07-10 11:37:21 -04:00
co-authored by Claude Opus 4.8
parent 90e6901a60
commit c44ef8d795
7 changed files with 126 additions and 7 deletions
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LOTUS_FEATURES.md
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@@ -686,6 +686,7 @@ Context menu → **Forward** allows forwarding a message to any room the user is
- Composer drafts are stored in `localStorage` keyed by `roomId`
- Draft is cleared on successful send
- The Jotai atom is the primary source of truth; `localStorage` is only read on room mount
- **Room-nav draft indicator**: a subtle chat-bubble icon (`Icons.Message`) appears on a room's nav item when it has an unsent message draft (and isn't the open room), so you can see at a glance where you left half-written messages. It reacts to the shared draft atom via a memoized `selectAtom(…, hasMsgDraft)` (re-renders only when the flag flips; the atom is written on room-leave, not per keystroke). `useHydrateMsgDrafts` (mounted in `ClientNonUIFeatures`) pre-fills the draft atoms from `draft-msg-*` localStorage on startup so indicators are correct after a reload. Emptiness check shared via the pure, unit-tested `hasMsgDraft` (`src/app/utils/draft.ts`), also used by the composer's `DraftIndicator`.
### Message Search Date Range