On iOS, tapping "+" → "Add image" in the Composer left an invisible
backdrop trapping touches after the native photo picker dismissed. Root
cause: the dropdown menu's onSelect fired while the RN Modal was still
completing UIKit dismissal, so PHPicker presented over a dismissing
Modal that never cleanly released.
DropdownMenu now defers the selected item's onSelect until Modal
onDismiss (UIKit-level completion) plus a short buffer on iOS, then
invokes it. Same DropdownMenu instance — no per-call opt-in.
Along the way, the Maestro repro surfaced a controlled-TextInput
character-drop race: fast inputText on a controlled input drops
characters mid-type. Direct-host and pair-link inputs are now
ref-backed uncontrolled inputs with stable testIDs.
New reusable E2E primitives under packages/app/maestro/:
- flows/land-in-chat.yaml — clearState + direct connect to
127.0.0.1:6767, lands in the composer. Compose on this for any
composer-level fixture.
- image-picker-repro.yaml — regression for the zombie-backdrop bug.
docs/MOBILE_TESTING.md gains the patterns: reach-the-composer via
land-in-chat, uncontrolled inputs for Maestro-typed fields, and the
dropdown → native-presenter dismissal timing on iOS.
Existing relay-pairing and relay-then-direct fixtures updated to use
stable testIDs instead of ambiguous text / point-based taps.
Mohamed Boudra