On iOS a single long-press emits several selectionchange events, so the
instant quick action fired the system dictionary 2-3 times, stacking
UIReferenceLibraryViewController sheets. Add a once-per-gesture latch to
deferredAction (re-armed by beginGesture on touchstart/pointerdown) so the
action runs at most once per gesture, mirroring the Android
defer-to-touchend coalescing.
Also fix two related cases:
- Tapping outside to deselect after dismissing the dictionary occasionally
re-opened it (~1/3): the deselect tap re-armed the latch and a racy
lingering selectionchange re-fired. Gate the instant action on a
long-press hold (isLongPressHold, 300ms, touch only) so a quick tap can't
trigger it.
- A Word Lens gloss tap ignored the system-dictionary setting (always
opened the in-app popup); route it through handleDictionary so it honors
the system dictionary like the toolbar and instant-quick-action paths.
Verified on Android (Xiaomi) that the instant dictionary still fires once
per long-press and re-arms for the next gesture; iOS double-popup and
tap-to-deselect re-fire confirmed fixed.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Huang Xin
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