Owner live-client report 2026-09-07: "For scrollable dropdown or the meta
window we use the same assets as we do in for example chat or inventory
window."
<menu> markup wiring (MarkupDocument.cs): a plugin <menu> is now always
Scrollable (single-column, VTank HudCombo shape) instead of wrapping
overflow into more grid columns, with PopupScrollbarHideWhenDisabled=true
so the bar is entirely absent while the item count fits the "rows"
window. RetailScrollbarChrome.ApplyToMenuPopup wires the same chrome ids
the previous commit taught DrawScrollablePopupPlain to draw, for both
style="plain" and style="retail" markup menus.
<list> markup (UiMarkupList.cs / MarkupDocument.cs): a plugin <list>
(single-column or <column> multi-column) that overflows its own row
viewport now draws the retail scrollbar chrome at its right edge (VVS's
own placement, 16px wide) instead of being wheel-scroll-only with no
visible bar. The reserved 16px column only exists while rows actually
overflow, in both column-layout modes (ComputeColumnLayout receives the
already-shrunk width so the last/auto column absorbs the remainder
correctly); the bar is fully interactive (up/down arrows, track paging,
thumb drag) via a small UiScrollable projection kept in sync with the
list's own _topRow, which stays the single source of truth. Wheel
scrolling and a no-resolver hand-built list (draws nothing, no crash) are
unchanged.
Mutation shown to fail first: new
UiMarkupListScrollbarTests/MarkupDocumentTests cases were written against
pre-change UiMarkupList/MarkupDocument and failed (no scrollbar sprites
ever emitted since UiMarkupList had no SpriteResolve property at all, and
<menu> markup never set Scrollable) before the implementation landed;
after: SingleColumn_Overflowing_DrawsRetailScrollbarChromeAtRightEdge and
Columns_Overflowing_ReservesSixteenPixels_LastColumnShrinksAccordingly
pin sprite ids + exact reserved-width geometry,
*_ContentFits_DrawsNo(Scrollbar|ReservationLastColumnKeepsFullRemainder)
pin the no-overflow/no-bar case, *_UpArrowClick_ScrollsUpByOneRow and
ThumbDrag_MovesTopRowAndIsReadableByASubsequentClick pin interactivity via
a following row click resolving to the moved position (mirroring
MarkupListColumnsTests' own wheel-scroll pin), and the four new
MarkupDocumentTests menu cases pin Scrollable/PopupScrollbarHideWhenDisabled/
the six chrome-id properties plus an end-to-end open-popup draw for both
the overflowing (draws chrome) and non-overflowing (draws none) cases.
Every pre-existing MarkupListColumnsTests/MarkupDocumentTests case stays
green unchanged (none of their fixtures overflow their own viewport).
docs/plugin-ui-markup.md updated: the <menu> style paragraph and a new
<list> "Scrollbar" section describe the new chrome + auto-reservation, and
the PITCH-transcription guidance is corrected to say the 16px scrollbar
column is now automatic (no more manual fold-in/double-reservation advice).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
e9108277c4