* Announce expanded/collapsed state on the timeline group header
GroupHeaderView (the accordion-style header used for grouped state
events in the timeline) uses toggleable() combined with
clearAndSetSemantics { contentDescription = text }. The
clearAndSetSemantics block discards the state information that
toggleable() would otherwise expose, so TalkBack never announces
whether the group is currently expanded or collapsed.
Add an explicit stateDescription (two new a11y_state_expanded /
a11y_state_collapsed strings in temporary.xml) alongside the existing
contentDescription so the expanded/collapsed state is communicated to
assistive technology.
Internal note: this single-file/single-root-cause fix addresses three
separate BITV findings raised in the same accessibility audit against
this component's toggle semantics.
* Update screenshots
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Co-authored-by: ElementBot <android@element.io>
* Add content scanner support to media gallery and viewer
* Improve UI and previews
* Remove default content validation state in media content views
* Disable click for invalid media items in the gallery events
* Update screenshots
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Co-authored-by: ElementBot <android@element.io>
* Simplify how event content with captions are displayed
The caption component will now be added in `TimelineItemEventContentView` instead of separately in each `TimelineItem__View` component
* Make sure `CoilMediaFetcher` methods to fetch media throw errors
We need to catch them later to check if the content scanner marked some thumbnails or medias as invalid/unsafe in `AsyncImage` instances
* Add a `ContentScannerService` that allows us to manually scan a list of medias in an event and then update and store the results
The results take the form of `ContentValidationValue`, stored in a `ContentValidationState` instance tied to the event
* Create `EventContentValidationCache` to keep the `ContentValidationStates` for events in a room
* Expose `EventContentValidationCache` to Compose using `LocalEventContentValidationState`
Also add a couple of helper functions to avoid having to manually remember the states
* Use the new components to display invalid content in the timeline items
* Add `blurhash` to most media items so we can use it while validating the thumbnails/medias
* Fix custom layout issues with screenshot and UI tests
* Also check the validation state for replied-to events in the composer
* Fix and add tests
* Handle unrecoverable content validation errors too: display a 'not found' UI
* Improve the performance of `EqualWidthColumn` for the single item case
* Update screenshots
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Co-authored-by: ElementBot <android@element.io>
* Collapse runs of deleted messages in the timeline (#7111)
* Collapse runs of deleted messages in the timeline
Collapse a run of three or more consecutive deleted messages into a single
expandable group, reusing the existing state-change grouping (the same way
element-web does it) instead of showing one "Message removed" placeholder per
deletion. The header shows the count only ("N deleted messages"); the Rust SDK
does not expose who performed the redaction, so we don't attribute it.
On by default. Runs shorter than three are left as individual placeholders, and
day dividers and read receipts are preserved (a run is broken by any
non-redacted item, so a day is never emptied).
Run the collapse as the final step of TimelineItemGrouper.group() instead of
a separate pass in the presenter, as suggested in review. Kept as its own
finalization step rather than via canBeGrouped() so the group stays all
redacted and the count-only header is preserved.
The group id is resolved through the grouper's existing id registry, like the
other groups, so it stays stable however the run grows and the user's
expand/collapse state is kept across timeline updates.
* Replace temporary strings with final ones
* Update screenshots
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Co-authored-by: Hi Dude! <klarkmonty@tuta.io>
Co-authored-by: manfrommedan <manfrommedan@users.noreply.github.com>
Co-authored-by: ElementBot <android@element.io>
Picking an attachment reset the composer to Normal, which dropped an
in-progress edit: the attachment went out as a new message and the
leftover edit text then created another one instead of editing the
original.
Route every attach path through a single resetComposerModeAfterAttaching()
helper that clears Reply/Normal but keeps an edit pending, so the typed
text still edits the original on the next send. This also covers the
multi-item gallery picker added in #6519, which reset the mode
unconditionally.
Reply is still cleared (the attachment becomes the reply).
Fixes#7083.
The LazyColumn was using reverseLayout=false when TalkBack was active to work
around a Compose accessibility traversal bug. This placed new messages at the
top of the screen, distorting the reading order for TalkBack users.
With Compose BOM 2026.06.00, reverseLayout=true now works correctly with
TalkBack traversal, so remove both workarounds:
- Always use reverseLayout=true in TimelineView
- Remove the .reversed() for expanded groups in TimelineItemGroupedEventsRow
Note: this change should be manually tested with TalkBack to verify correct
traversal order (oldest messages first, newest last).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- MarkdownTextInput: set contentDescription on MarkdownEditText so TalkBack
announces a persistent label even when the field has content (fixes#6390)
- TimelineItemReadReceiptView: remove hideFromAccessibility() so the 'Seen by'
button is exposed to TalkBack; use semantics (not clearAndSetSemantics) to
preserve click action, and add Role.Button (fixes#6393)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>