[elios-fullphysio]

What this fixes

With ChewieController.chapters set, the label shown above the progress bar while hovering or scrubbing (<chapter title> · <time>) is centered on the pointer with no clamp and no width limit. Two visible problems:

• Near the first and last chapters, half of the label falls outside the bar. Any clip around the player (a ClipRRect with rounded corners is the usual case) cuts it off, so the beginning or the end of the title is missing exactly where the user points.
• Long titles are laid out at their natural width and run past the player.

Change

_buildChapterLabel now measures the label with a TextPainter (same style and text scaler as the rendered Text), caps its width at the bar width, and clamps its left edge to [0, barWidth − labelWidth]. In the middle of the bar nothing changes: the label stays centered on the pointer. Near an edge it stops flush with the bar while the pointer keeps sliding under it, which is how YouTube handles its chapter tooltip. Long titles ellipsize inside the bar instead of overflowing.

Hover and drag share the path, so Material, desktop and Cupertino controls all get the behaviour.

Tests

• chapter label stays inside the bar at both ends: hover at the first pixel, the last pixel and the center of the bar; the pill never crosses the bar's edges and is still centered on the pointer in the middle.
• a long chapter title is capped to the bar width.

Full suite passes (280 tests).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.71%. Comparing base (be88d00) to head (d2469ba).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #975      +/-   ##
==========================================
+ Coverage   82.61%   82.71%   +0.10%     
==========================================
  Files          48       48              
  Lines        2968     2980      +12     
==========================================
+ Hits         2452     2465      +13     
+ Misses        516      515       -1     

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[diegotori]

LGTM.