forked from akai/readest
Huang Xin
c5304cd46c
Vertical-rl books paged along the vertical scroll axis: page turns slid up/down and only vertical swipes turned pages. Vertical books read with right-to-left page progression, so page turns now work horizontally, matching printed vertical books: - Swipes track the finger: the page follows a horizontal drag and the release commits the turn (past half a page width or a flick in the drag direction) or settles the page back. - Arrow keys, tap zones, and the wheel follow the same rtl mapping that horizontal-rtl books use. - Animated turns run a two-phase horizontal slide that continues from the dragged offset: the outgoing page exits along the page progression, the scroll jumps while off-screen, and the incoming page follows in from the opposite edge. A single-phase push is impossible because CSS multicol stacks vertical-rl pages along the vertical scroll axis inside one iframe, so the outgoing and incoming page can never be on screen side by side. - With animation disabled (or e-ink), turns swap instantly as before. The paginator changes live in the foliate-js submodule; this bumps the pointer and adds browser tests with a vertical-rl EPUB fixture covering direction detection, drag tracking, drag revert, horizontal swipe mapping in both directions, the legacy vertical swipe, the horizontal slide animation, the instant non-animated swap, and the unchanged horizontal-ltr swipe behavior. Fixes #624 Co-authored-by: Claude Fable 5 <noreply@anthropic.com>