gsxdsm cbc315772e fix: keep iOS mobile chat keyboard up and reopen Quick Chat FAB ...

Two iOS Safari-specific fixes for mobile chat:

- ChatView: the main chat keyboard collapsed the instant it opened
  because .chat-thread--keyboard-active declared transform/will-change in
  CSS, keeping a non-none transform on an ancestor of the focused
  composer textarea. iOS blurs a focused input when an ancestor
  establishes a transform containing block. Drive the drift transform in
  JS only when iOS actually shifts the viewport (offsetTop > 0); the
  ancestor stays transform:none on focus so the keyboard stays up.

- QuickChatFAB: the FAB never opened on iPhone because the drag hook
  calls setPointerCapture() in pointerdown, which makes WebKit swallow
  the synthetic click. Fire the open/close toggle from the drag hook's
  pointerup on a tap (a real gesture, so stealth-input focus still raises
  the keyboard); keep onClick for mouse/tests with a timer-cleared dedupe.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-12 08:45:27 -07:00

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