The iPad pointer lock engaged but a Magic Keyboard trackpad went dead the
moment a second pointer (a Universal Control "V-UC Automouse") was connected —
on-device PUNKTFUNK_INPUT_DEBUG logs showed only ONE GCMouse attached (whichever
was GCMouse.current), so the other device's motion handler was never installed.
InputCapture.start() now attaches a handler to EVERY GCMouse.mice(), not just
GCMouse.current, so a trackpad and a second mouse both drive (each GCMouse
delivers its own deltas through its own handler). New arrivals still come via the
GCMouseDidConnect observer.
Also gate the WHOLE UIKit indirect-pointer path (motion, buttons AND scroll) on
!gcMouseForwarding, not just motion+scroll: under pointer lock GCMouse owns
buttons too, and the trackpad/mouse also emit UIKit indirect-pointer events
pinned at the locked position — without the gate a click double-sent (GCMouse +
UIKit). The two paths are now exact mirrors on `gcMouseForwarding` (== locked).
Removes the investigation-only diagnostics (attachedMiceSummary/hasGCMouse, the
per-event UIKit pointer/scroll logs, the GCMouse attach/became-current logs);
the pre-existing `pointer lock isLocked=… captured=…` debug line is restored.
iOS compiles against the SDK; macOS swift build + test green (49 tests).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
enricobuehler
06bee687c3