Handle fractional macOS horizontal scroll deltas#198
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macOS can report Logitech horizontal tilt wheel movement as small fractional deltas. With the default threshold at 1, devices like the M720 require many tilt events before a mapped horizontal-scroll action fires, making desktop/browser mappings appear unresponsive. Lower the default threshold to the existing minimum effective value and allow saved integer thresholds to remain compatible with the float default. Constraint: Observed M720 macOS delta is about 0.100006 per tilt event Rejected: Device-specific M720 special case | other Logitech devices can emit the same fractional macOS wheel deltas Confidence: high Scope-risk: narrow Tested: python -m unittest tests.test_config tests.test_engine Not-tested: Full app GUI regression
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…#181, TomBadash#184, TomBadash#185, TomBadash#191, TomBadash#193, TomBadash#195, TomBadash#196, TomBadash#198, TomBadash#216) Merge and adapt the following upstream pull requests, resolving conflicts with MX Master 4 haptic and Actions Ring features: Clean merges: - PR TomBadash#193: symlink-safe config save via os.path.realpath() - PR TomBadash#198: fractional hscroll threshold (0.1 default, int/float compat) - PR TomBadash#185: pass through OS mouse events when no Logitech device connected - PR TomBadash#180: persist hardware-reported DPI across restarts - PR TomBadash#181: memoize Backend list properties for QML UI performance - PR TomBadash#195: ping-pong desktop cycling action (macOS Spaces) Conflict-resolution merges: - PR TomBadash#196: nested macOS app identity matching with tuple identities - PR TomBadash#191: Shift+wheel horizontal scroll translation (cross-platform) - PR TomBadash#216 (partial): phase-aware trackpad filter + 0.01 hscroll floor Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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macOS can report Logitech horizontal tilt wheel movement as small fractional deltas. With the default threshold at 1, devices like the M720 require many tilt events before a mapped horizontal-scroll action fires, making desktop/browser mappings appear unresponsive. Lower the default threshold to the existing minimum effective value and allow saved integer thresholds to remain compatible with the float default.
Constraint: Observed M720 macOS delta is about 0.100006 per tilt event
Rejected: Device-specific M720 special case | other Logitech devices can emit the same fractional macOS wheel deltas
Confidence: high
Scope-risk: narrow
Tested: python -m unittest tests.test_config tests.test_engine
Not-tested: Full app GUI regression