2cc955ed65
Problem: opening Send Note on iPad, tapping the search field opened the
soft keyboard which covered the recipients list and the Send button —
the dialog stayed centered on the full layout viewport.
Fix (artifacts/tx-os/src/components/notes/send-note-dialog.tsx):
Two-tier keyboard detection:
1. Primary — `vv.keyboardInset > 0` from useVisualViewport. Works on
desktop touch laptops, iPad Safari (regular tab), Android Chrome.
When true, override DialogContent style with
top = vv.offsetTop + vv.height/2 − 48 (QuickType inset)
transform: translate(-50%, -50%)
so the dialog recenters around the visible viewport region.
2. Fallback — `searchFocused && matchMedia('(pointer: coarse)')`.
Only used when visualViewport does NOT report an inset, which is
the iPad PWA (Add to Home Screen) case explicitly called out in
components/ui/dialog.tsx comment. Top-anchors at 6vh with
maxHeight 50dvh so the dialog never crosses the screen midpoint.
3. Neither — pass NO style at all so Radix's default centered layout
is fully restored (no leftover transition or top).
Touch-only fallback gating (matchMedia pointer:coarse) prevents the
earlier desktop-regression flagged by code review — focusing the
search on a desktop never repositions the dialog.
Other changes:
- onFocus/onBlur on the search input feed the fallback signal.
- Blur is debounced 150ms so tapping a recipient row mid-blur doesn't
recenter the dialog out from under the finger.
- useEffect cleanup clears pending blur timeout on unmount.
Verification: tsc clean. Architect approved the touch-gated fallback;
follow-up review reconciled the diff with the spec's primary
visualViewport-driven path.