The spinner (.session-state-indicator.is-streaming) can remain spinning
indefinitely on completed sessions when the INFLIGHT in-memory cache is
not cleaned up due to abnormal stream termination (page refresh, network
disconnect, gateway restart).
Add a staleness guard in _isSessionLocallyStreaming: if the server
reports is_streaming=false and last_message_at is older than 5 minutes,
force the streaming state to false regardless of stale INFLIGHT entries.
- Session.composer_draft field: {text, files} stored in session JSON
- POST+GET /api/session/draft endpoint for save/load
- loadSession: save draft before switch, restore from S.session.composer_draft
- textarea input: debounced 400ms auto-save to server
- send(): clear draft after message is sent
- lockComposerForClarify(): save draft before card locks composer
- _restoreComposerDraft: clears textarea when target has no draft, guards
against stale responses racing new session loads, exact text comparison
- Session.compact(): includes composer_draft in response
- Fix: use handler.command instead of parsed.method (ParseResult has no .method)
Co-authored-by: Minimax <noreply@minimax.io>
The originally-proposed fix (gate _ensureAllMessagesLoaded on the existing
_loadingOlder flag) does not actually close the race. By the time the
prefetch reaches its post-await body, it has already cleared the entry-
gate that reads _loadingOlder, so a same-flag check inside the resolved
callback would be a no-op for an in-flight request.
The actual fix is two-pronged:
1. New module-scoped _messagesGeneration counter, bumped every time
S.messages is wholesale-replaced. _loadOlderMessages snapshots it
BEFORE its await and re-checks after — if it changed, the prepend
is aborted. This is the canonical async-invalidation pattern.
2. _ensureAllMessagesLoaded now claims the _loadingOlder mutex around
its body so a new prefetch cannot start mid-replace and concurrent
ensure-all calls (rapid double-click on Start) serialize cleanly.
It bumps the generation token before mutating S.messages, yields
until any in-flight prefetch finishes, and resets _oldestIdx so a
subsequent prefetch cannot request stale older messages.
Also adds the same-session / _loadingSessionId guards that the original
ensure-all body was missing post-await — if the user switched sessions
mid-flight, the old code would happily overwrite the new session's
messages with the previous session's full history.
12 new regression tests in tests/test_issue1937_endless_scroll_jumpstart_race.py
lock in: generation token declaration, bump-helper presence, snapshot-
before-await ordering, post-await-abort behaviour, mutex acquisition and
finally-release, yield-then-claim ordering when a prefetch is in flight,
generation bump during the wait phase, _oldestIdx reset, and the new
session-switch guard.
Closes#1937.
Keep explicit bottom pins stable across late layout growth and make clicking the already-active sidebar session a no-op before loadSession mutates state. Update scroll regression tests for the delayed settle path.
Four small UX bugs Nathan caught while dogfooding the v0.51.17 release on
desktop. All independently reproduced with browser_console + browser_vision
on a fresh worktree before fixing.
(1) **Left-rail icon tooltips never appeared.** The rail was migrated to the
new `.has-tooltip` system in #1782, but the legacy suppression rule
`.rail .nav-tab:hover::after { content: none }` survived the migration.
Its specificity (0,3,1) outweighs `.has-tooltip:hover::after` (0,2,1),
and `content: none` removes the pseudo-element entirely on hover — so the
new tooltip system silently no-op'd on every rail icon. Fix: drop the
suppression rule and scope the legacy `data-label` tooltip to
`.sidebar-nav .nav-tab` (mobile) only, so it doesn't fire on rail buttons
that carry no `data-label` (which would render an empty styled box).
(2) **`+ New conversation` tooltip clipped at panel right edge.** The button
sits flush with the chat panel's right edge but used `--bottom` which
centers the tooltip on `left:50%` — half the label overflowed past the
panel edge ("New convers..."). New `.has-tooltip--bottom-right` variant
anchors the tooltip's RIGHT edge to the trigger so the label extends
inward. Reusable for any future right-edge panel-head button.
(3) **Workspace right-click menu items had no hover state.** The five sites
in `_showFileContextMenu` (Rename / Reveal / Copy path / Delete) and two
in `_showProjectContextMenu` set `style.background = 'var(--hover)'`. The
custom property `--hover` is undefined anywhere in the codebase. An
undefined `var()` falls back to the property's initial value
(`transparent` for `background`) → no visible hover feedback. The defined
variable is `--hover-bg` (`rgba(255,255,255,.06)`), already used by every
other hover state in the app. One-letter typo, seven sites.
(4) **Rename dialog didn't pre-fill the current filename.** The caller
(`_inlineRenameFileItem`) passed `defaultValue: item.name` to
`showPromptDialog`, but the dialog's input setter reads `opts.value`
only — the param name was silently dropped, leaving only the placeholder
visible (Nathan called it the "ghost name"). Fixed two ways for
defense-in-depth:
- Caller switched to canonical `value: item.name`.
- Dialog now also accepts `defaultValue` as an alias for `value`, so
future typos using the standard `HTMLInputElement.defaultValue` param
name don't repeat the bug.
Plus: added `selectStem:true` opt that selects the stem before the last
`.` on focus (Finder-style: `report.txt` → selects `report`, extension
preserved). Edge cases verified live: directories full-select,
`.gitignore` full-selects (dot at index 0), `noextension` full-selects,
`a.b.c.d` selects `a.b.c`.
## Tests
+12 new regression tests, +5 net (existing test_css_tooltips suite gained 5
class-based tests; new tests/test_workspace_context_menu_and_rename.py file
adds 7 more). Total: 4728 passed (was 4723 in v0.51.17), 4 skipped, 3
xpassed, 0 failed in 141s.
- `RailTooltipCascadeTests` — pins the killer rule's absence (with comment
stripping so the explanatory note doesn't false-positive), pins the
scoped `.sidebar-nav .nav-tab` form, walks every rail button to confirm
`has-tooltip` + non-empty `data-tooltip`.
- `BottomRightTooltipVariantTests` — pins variant existence, mechanics
(`right:0`, `left:auto`, `transform:none`), and `#btnNewChat` adoption
(with mutual-exclusion check that it doesn't carry both `--bottom` and
`--bottom-right`).
- `ContextMenuHoverBackgroundTests` — `var(--hover)` may not appear in
ui.js or sessions.js (the bug shape); affirmative pin that
`_showFileContextMenu` sets ≥4 items to `var(--hover-bg)` and
`_showProjectContextMenu` ≥2.
- `ShowPromptDialogPrefillTests` — pins both `opts.value` and
`opts.defaultValue` references; pins the `selectStem` mechanic
(`lastIndexOf('.')` + `setSelectionRange(0, dot)`); pins the caller's
use of `value:item.name` and `selectStem`.
## Verification
Live in browser at port 8789 (worktree-served):
- Rail Tasks tooltip renders 8px right of the icon at the same vertical
level (math: btn at y=87-123, tooltip at left=44px = 36px width + 8px gap).
- New-conversation tooltip renders below + button with right edge aligned
to button's right edge, extending leftward, fully visible.
- Right-click → Reveal in File Manager shows `rgba(255, 255, 255, 0.035)`
background on hover (the `--hover-bg` value); was `rgba(0, 0, 0, 0)`
(transparent) before.
- Right-click → Rename on `report.txt`: input shows `report.txt`,
selectionStart=0, selectionEnd=6, selected text = "report". Edge cases:
directory `docs` → full-select; `.gitignore` → full-select;
`noextension` → full-select; `a.b.c.d` → selects `a.b.c`.
`node -c` syntax check passes on both modified JS files.
Reported by: Nathan via screenshots (rail tooltips missing, + button
clipped tooltip, Workspace right-click no hover, rename dialog blank).
Issue #1764 asked for a much larger surface (Reveal + Copy-path on
every UI surface that references a file path, plus Rename in session
menus). Per Nathan's curation we ship only the three highest-leverage
pieces in this PR — they cover the three concrete user-visible
frictions Cygnus reported, and leave the broader sweep for follow-up.
## 1. Copy file path in workspace tree right-click menu
The tree's right-click already had Rename and Reveal in File Manager.
Reveal is slow when the user just wants the path string for a
terminal/editor — and there was no Copy-path action anywhere.
Added "Copy file path" between Reveal and Delete. It POSTs to a new
`/api/file/path` endpoint that resolves the relative tree-rooted path
into the absolute on-disk path (the frontend can't compute it because
only the server knows the workspace root) and writes the result to
the OS clipboard via `navigator.clipboard.writeText()`. Falls back to
the legacy execCommand pattern on browsers where the modern Clipboard
API is gated.
The new endpoint deliberately does NOT require the target to exist:
copy-path on a recently-deleted file is still useful (paste into a
terminal to investigate). `safe_resolve` continues to gate path
traversal — the test suite pins this with a `../../../../../etc/passwd`
attempt that 400s.
## 2. Rename in session three-dot menu
Cygnus's specific ask: double-click rename in the sidebar is timing-
sensitive — the first click frequently registers as "open the chat"
before the second click arrives, so users open the conversation when
they meant to rename it. Putting Rename in the menu eliminates the
timing entirely.
Added Rename as the FIRST item in `_openSessionActionMenu` (above
Pin). It reuses the existing `startRename` closure attached to each
session row — no duplicated state, no second API call out of band
with the double-click path. Mechanism: the row builder now stores
`el._startRename = startRename` and `el.dataset.sid = s.session_id`,
so the menu can find the row by data-sid and call its closure
directly. This keeps all the `_renamingSid`/`oldTitle`/`applyTitle`
bookkeeping single-sourced.
Read-only imported sessions skip the menu item via the same
`_isReadOnlySession` gate the closure already uses.
## 3. Reveal-failed toast includes the resolved server-side path
Cygnus posted a screenshot of a "Failed to reveal: not found" toast
that dropped the path entirely. Without it the user can't tell which
file the system expected — useful when a stale session row still
references a deleted file.
Server-side fix in `_handle_file_reveal`: instead of returning
`bad(handler, "File not found", 404)`, return
`bad(handler, f"File not found: {target}", 404)` where target is the
resolved absolute path. Frontend toast also defends against err with
no .message: `(err.message||err)` instead of `err.message` alone.
Verified live: a missing-file reveal now produces:
Failed to reveal: File not found: /home/hermes/workspace/missing-xyz.txt
Cygnus's exact diagnostic-friction is gone.
## Tests
* tests/test_1764_context_menu_essentials.py (new)
- 13 source-level pinning tests
- 6 live HTTP behaviour tests against the conftest test server
* tests/test_1466_sidebar_cancel_clarify.py
- Two assertion-window bumps (3200→4400, 3600→4800) to accommodate
the new Rename action prepended to _openSessionActionMenu. The
test relied on a fixed-byte-window function-body slice — comments
added explaining why the bumps were needed.
* All 9 locales got translations for the 5 new keys
(copy_file_path, path_copied, path_copy_failed, session_rename,
session_rename_desc) — locale parity tests pass.
## Verification
Full pytest suite: 4671 passed, 2 skipped, 3 xpassed (matches
pre-change baseline).
Live browser verification on port 8789:
- Right-click .git folder in workspace tree → menu shows
Rename / Reveal in File Manager / Copy file path / Delete (red).
- Click Copy file path → clipboard gets "/home/hermes/workspace/.git",
toast confirms "File path copied to clipboard".
- Open session three-dot menu → Rename conversation appears first
with pencil icon, followed by Pin / Move / Archive / Duplicate /
Delete in the same order as before.
- Trigger reveal on a non-existent file → toast reads
"Failed to reveal: File not found: /home/hermes/workspace/<filename>".
The resolved server-side path is now visible in the failure.
Refs nesquena/hermes-webui#1764.
Opus advisor on stage-302 (#1732 verification Q5) flagged that
_lastScrollTop is module-global and persists across chat switches. When
the user switches sessions, the new chat's first user scroll compares
against the previous chat's last scrollTop. If the previous was deep-
scrolled (e.g. 5000) and the new chat starts at top=0, scrolling down
to 100 would evaluate as movedUp=true → false-unpin, blocking auto-
scroll on the new chat's first incoming token.
Fix: expose _resetScrollDirectionTracker() from static/ui.js on window
so static/sessions.js loadSession() can reset _lastScrollTop=null when
S.session is reassigned. The scroll listener's existing _lastScrollTop!==null
guard then handles the first sample after reset correctly (no false-trigger
on the very first scroll event in the new chat).
Absorb-in-release per Opus stage-302 verdict — small, defensive, ≤20 LOC.
PR #1669 added DOM virtualization to renderSessionListFromCache() with two issues
for lists below the virtualization threshold (≤80 rows):
1. The unconditional scroll listener triggered renderSessionListFromCache() on
every rAF, rebuilding the entire list DOM on every scroll event.
2. After each rebuild, scrollTop was only restored when virtualWindow.virtualized
was true (i.e. total > 80). For lists ≤ 80 rows, scrollTop dropped to 0 on
every scroll event, producing a 'scroll keeps jumping back' feel.
Fix:
- Always restore scrollTop after re-render when listScrollTopBeforeRender > 0
(regardless of virtualized flag).
- Short-circuit _scheduleSessionVirtualizedRender when total <=
SESSION_VIRTUAL_THRESHOLD_ROWS (saves wasteful rebuild on small lists).
Live verified on a 56-session sidebar: scrollTop holds across animation frames.
3 regression tests pin the fix shape.
Frank Song