Glide the progress indicator through blends instead of snapping - #105
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sanylax0 merged 1 commit intoJul 19, 2026
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At deck promotion the displayed progress jumped from the outgoing track's fraction to the incoming track's — jarring on skips and natural transitions alike. New Player.displayProgress morphs between the two fractions weighted by the blend progress, so by the moment the decks swap the shown value already equals the incoming fraction; the Now Playing ring and mini-player line both use it.
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What
During any blend (smooth skip or natural end-of-track transition), the progress ring and mini-player line snapped from the outgoing track's percentage to the incoming track's the instant the decks swapped.
How
New
Player.displayProgress: while a transition is in flight, it interpolates between the outgoing fraction (position / duration) and the incoming fraction (incomingStartOffset + idle deck elapsed, over the incoming duration), weighted bytransitionProgress. The morph tracks the audible blend exactly — by the momentfinishTransitionpromotes the decks, the displayed value already equals the incoming fraction, so the handoff is continuous. Outside transitions it's identical to before.TrackProgressRing(Now Playing) andMiniProgressLine(mini player) both read it; the scrubber (sheet mode) intentionally keeps showing the outgoing track's real position.Hard cuts (paused skip, sub-1s-remaining skip) still jump — matching the audio, which also cuts.
Testing
On device: skip mid-song — the ring should sweep smoothly from the outgoing percentage to the incoming track's starting point over the 5 s blend, no snap at the end; same on natural transitions; normal playback and scrubbing unchanged.
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https://claude.ai/code/session_013TJoWkqg8bzkGdzxWhWjWP
Generated by Claude Code