A paragraph that overflows the right page onto the next spread revealed its single
right-page line over the entire TTS, then timed out (timeline-reveal-commit-timeout)
and only flipped after the whole narration. Two root causes:
- At activate the reused lookahead segment played a sentence instance whose animation
word-timings were lost (wordTimings=[], totalDuration=0), so reveal timing fell back
to an area estimate spanning the full TTS. Snapshot the timings at prepare and restore
them at activate.
- Reveal duration was distributed by ink area, but just-paginated continuation lines
have ~0 area, so the one right-page line received the whole duration. Distribute by
word count (reliable) with area as fallback.
Now the right page reveals only its word share (~2.7s for a 6/55-word line), commits,
and flips while TTS continues; the continuation animates on the next spread. Also
rewrote the right-reveal wait to a single timer + commit/fast-forward listeners with
cleanup, removing the stray timeline-reveal-commit-timeout.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Georg
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