Transitions never actually animated: Svelte scopes @keyframes names but does NOT
rewrite animation references in inline style attributes, so the inline
'animation: crossfade-in ...' never matched its scoped keyframe — a hard cut, no fade
(Ken Burns' zoom was dead too). Move the animation into scoped classes and pass dynamic
values via CSS custom properties.
- Real two-layer crossfade: hold the outgoing frame opaque beneath the incoming one
(which is decode-gated), so there's no black flash and no decode pop.
- New slide transitions (from below/left/right) as one reusable component; the previous
frame is pushed off the opposite edge in step (a conveyor/push), easeInOutSine 1s.
- Fullscreen toggle button (Fullscreen API) + 'f' shortcut; Esc in fullscreen no longer
also navigates away.
- Controls now reveal on pointer/keyboard activity and fade when idle (cursor hides too)
instead of being always visible.
- wakelock: null the sentinel on the OS 'release' event so re-acquire-on-visible
actually fires (previously the screen could sleep after the tab was first hidden).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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