[UsiFX]

Description

The bar's lyric line (MediaLyricLine.qml) always filled the highlighted text from the left edge. For RTL lyrics such as Arabic, the word-by-word sweep ran left to right, against the reading direction.

The highlighted copy of the text now anchors to the right edge when LyricsModel.isRtl() is true, so the fill grows from right to left. This is the same detection the dash lyrics view already uses. LTR lyrics are unchanged.

The component is also used by MediaActivityFace.qml, so that surface gets the same fix.

Type of change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that changes existing behavior)
• Refactor / internal cleanup
• Documentation
• Other

Screenshots / video

2026-11-14.19-38-43.mp4

Arabic track (Masr7ya, Marwan Pablo) in the bar's music widget with smooth lyrics on: the highlight now fills right to left. The English track at the end still fills left to right.

Tested on niri.

Checklist

• My code follows the conventions in CONTRIBUTING.md
• I have tested my changes locally
• New user-facing strings are wrapped in I18n.tr() with translator context, reusing existing terms where possible
• Go changes: ran make fmt, added/updated tests, make test passes, and go mod tidy is clean
• QML changes: ran make lint-qml with no new warnings
• I have opened a corresponding pull request in dux-docs to document any new behaviors: https://github.com/duxlabs-dev/dux-docs