* docs: design spec for gesture-based brightness control (#3021)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* docs: revise brightness-gesture spec per /autoplan review (#3021)
CEO+Design+Eng dual-voice review. Key fixes: capture-phase listener
(bubble-phase could not suppress foliate paginator), opt-out toggle,
18px threshold, selection guard, brightness seed race, rAF teardown,
e-ink stepped overlay, contrast capsule, perceptual curve reuse,
listener-level test harness.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* feat(reader): swipe-to-adjust brightness gesture on mobile (#3021)
Left-edge vertical swipe adjusts screen brightness on iOS/Android, with a
Sun-icon progress overlay. Capture-phase non-passive listener suppresses the
foliate paginator / page-flip / UI-toggle handlers; selection guard, strip
reservation in scrolled mode, eager brightness seed, rAF throttle + teardown.
Opt-out toggle in Settings > Behavior > Device (default on). Perceptual curve
shared with the menu slider. Pure-helper + listener-level tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(reader): detect brightness-swipe edge by screenX; i18n + shorter label (#3021)
On-device fix: paginated mode lays the iframe doc out as wide side-by-side
columns, so clientX/documentElement.clientWidth are document coordinates and a
left-edge touch on a later page never fell inside the strip (armed stayed false).
Detect with screenX against the parent window width, matching usePagination.
Also: translate the two new setting strings across all locales and shorten the
toggle description to 'Slide along the left edge'.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>