Touch screens have no right mouse button, so right-click radial was
inaccessible on Android. New system radial_open_on_long_press counts
up while a touch is held on a face-up card without crossing the drag
threshold; after 0.5 s it transitions RightClickRadialState to Active,
which the existing visual overlay and destination-ring infrastructure
then renders unchanged.
Three supporting changes to wire up the touch-driven confirm path:
- radial_track_cursor: falls back to the first active Touches position
when cursor_world returns None, so the hover ring tracks a sliding
held finger on Android.
- radial_handle_release_or_cancel: confirms on Touches::iter_just_released
(finger lift) in addition to right-mouse release. Cancels on
Touches::iter_just_canceled. No new event reader — uses the Touches
resource which is already in scope after the track_cursor addition.
- handle_double_tap: skips when the radial is active. Guards the
narrow edge case where the finger lifts on the exact same frame
as the 0.5 s long-press threshold fires; prevents a spurious
double-tap move from racing with the radial confirm.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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