Simon 39a47289b9 Start the next reel as it slides in, not once it has landed ...

A step began playing when the swipe was already half done -- Math.round of
the scroll position -- and only then started loading. So it slid into view
as a still picture and came to life some time after it arrived, which is
most of the waiting in a reel.

The step coming into view now starts as soon as any of it is showing, and
silently, so it doesn't talk over the one still being watched; its own
sound setting is restored when it becomes the step being watched. A swipe
carried through therefore lands on a video that is already running.

A swipe that is abandoned leaves nothing behind: the step peeked at is
stopped and put back where the peek found it -- the start for a step never
watched, where it was left for one scrolled past -- so the next swipe to it
begins at the top rather than partway through something nobody saw.

"The scroll has stopped" has to mean stopped *on* a step. Scroll events also
stop while a finger holds the list between two of them, and the first cut
rewound the incoming video under the held finger -- which is exactly the
stall this removes. A settle that finds the scroller mid-step now waits for
the snap to land.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MPZFnNdHbPGDTqQUNiE4ZN

2026-09-21 17:36:57 +00:00

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