gsxdsm 1610cd5757 FN-5837: keep message composer visible when mobile keyboard opens ...

Ensure the message composer textarea scrolls into view during mobile keyboard interactions.

- extract a reusable textarea scroll helper guarded for missing scrollIntoView support
- subscribe to visualViewport resize for all compose modes (not only replies) and clean up listener with stable callback
- trigger textarea scrolling on focus to proactively keep the composer visible when soft keyboards open
- add tests covering visualViewport resize for new compose, existing reply flow, and focus-triggered scroll behavior

Files changed:
 .../dashboard/app/components/MessageComposer.tsx   | 20 ++++----
 .../components/__tests__/MessageComposer.test.tsx  | 56 ++++++++++++++++++++++
 2 files changed, 68 insertions(+), 8 deletions(-)

Fusion-Task-Id: FN-5837

Fusion-Task-Lineage: c9fb76a2-6c5a-4d5c-b8ad-8250ed470825

2026-06-01 10:17:52 -07:00

9.9 KiB

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