[Ortes]

MaterialDesktopControls puts its right-hand controls (fullscreen, options, subtitles, cast, additional controls) partway across the bar instead of at the right edge.

Cause: a3c8955 made the position label a loose Flexible next to the existing Spacer. Both have flex 1, so they split the free space evenly. The label only uses its natural width, so the rest of its share ends up after the controls. At 1280 px wide, the fullscreen button sits 375 px from the right edge.

Fix: make the label the bar's only flex child (Expanded + Align to the start) and drop the Spacer.

This keeps what the Flexible was added for: on a narrow window the label still shrinks instead of overflowing when there are extra controls. I checked 360, 420 and 480 px with three additionalControls. There's no overflow on either version, and the fullscreen button reaches the right edge on both. The label also gets all of the leftover width instead of half of it (17 px instead of 9 px at 360 px).

Added test/desktop_bar_layout_test.dart. It fails on master (375 px from the edge) and passes with the fix.

Before (master)	After

Both are from the example app on Chrome with "Desktop controls" selected. The "after" shot was taken while the controls were fading out.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.61%. Comparing base (d568acf) to head (178e9df).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #973   +/-   ##
=======================================
  Coverage   82.60%   82.61%           
=======================================
  Files          48       48           
  Lines        2967     2968    +1     
=======================================
+ Hits         2451     2452    +1     
  Misses        516      516           

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[diegotori]

LGTM.