Picking an autocomplete item (mention/emoji/command — all inline voids)
occasionally tripped the composer error boundary, forcing a page refresh, even
though the element had already inserted. Root cause (traced through slate-react):
moveCursor deferred its cursor work to setTimeout(0), leaving the caret on the
just-inserted void's zero-width edge whose DOM (a U+FEFF node) isn't populated on
that tick. slate-react's commit-phase selection sync then calls
setBaseAndExtent(voidEdge, 1) and throws IndexSizeError mid-render → boundary.
Prevention: do the cursor work SYNCHRONOUSLY, in the same commit as the insert —
Transforms.move (escapes the void into the real trailing text node) then
insertText(' '). The caret is then always a resolvable text point when the
selection sync runs. (moveCursor's focus stays deferred+guarded, unchanged.)
Recovery (belt-and-suspenders): the composer error boundary is now recoverable —
a "Reload composer" button (resetErrorBoundary) + onReset Transforms.deselect
clears a transient bad selection so it remounts with the draft intact, no page
refresh. + role="alert" for screen readers.
Three review agents: two root-caused the exact slate-react throw and proved the
try/catch-only version merely recovered; a third reproduced the transforms
headlessly and caught that a first "sync insertText WITHOUT move" attempt hit
Slate's void guard (space dropped, caret trapped) — the move is required to
escape the void. Not unit-testable (needs the live DOM + the timing race).
Gate-green (tsc, eslint, prettier, 925 tests, build).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
When selecting an autocomplete suggestion (user/room mention, emoticon,
command), Slate's replaceWithElement inserts a void inline node into the
model but React hasn't flushed the DOM update yet. Calling
Transforms.move + insertText immediately after causes ReactEditor.toDOMNode
to fail with "Cannot resolve a DOM node from slate node: {\"text\":\" \"}".
Fix: wrap moveCursor body in setTimeout(fn, 0) so React can flush the void
element's DOM node before Slate attempts to resolve the cursor position.
Also call ReactEditor.focus to restore editor focus after the autocomplete
menu item click blurs the editor.
Fixes all callers: UserMentionAutocomplete, RoomMentionAutocomplete,
EmoticonAutocomplete, CommandAutocomplete.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- RoomTimeline.tsx: add eslint-disable comment for intentional eventsLength
dep on timelineSegments useMemo (needed to detect in-place timeline mutations)
- Remove ~47 stale eslint-disable-next-line comments across 28 files for rules
that are now off in the flat config (no-param-reassign, jsx-a11y/media-has-caption,
react/no-array-index-key, etc); run prettier to reformat
- vite.config.js: move manualChunks from rollupOptions.output to
rolldownOptions.output so Rolldown (Vite 8) actually applies it; main bundle
drops from 3.5 MB to 814 kB gzip-248 kB, matrix-sdk gets its own 1.16 MB
cacheable chunk
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* support room via server params and eventId
* change copy link to matrix.to links
* display matrix.to links in messages as pill and stop generating url previews for them
* improve editor mention to include viaServers and eventId
* fix mention custom attributes
* always try to open room in current space
* jump to latest remove target eventId from url
* add create direct search options to open/create dm with url
* add commands hook
* add commands in editor
* add command auto complete menu
* add commands in room input
* remove old reply code from room input
* fix video component css
* do not auto focus input on android or ios
* fix crash on enable block after selection
* fix circular deps in editor
* fix autocomplete return focus move editor cursor
* remove unwanted keydown from room input
* fix emoji alignment in editor
* test ipad user agent
* refactor isAndroidOrIOS to mobileOrTablet
* update slate & slate-react
* downgrade slate-react to 0.98.4
0.99.0 has breaking changes with ReactEditor.focus
* add sql to readable ext mimetype
* fix empty editor formatting gets saved as draft
* add option to use enter for newline
* remove empty msg draft from atom family
* prevent msg ctx menu from open on text selection
jaredandClaude Opus 4.8
Lotus BotandClaude Sonnet 4.6
Ajay BuraandGitHub