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fix(vt): plugin <list> draws no selection band by default in either mode

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Slice-7 resemblance re-check found UiMarkupList's column-less items= mode
and its <column> mode disagreed on whether a selected row gets a
persistent SelectedColor fill, so a plugin's Buffs lists highlighted a
row while the Monsters/Meta grids looked different for the same widget.
Real VVS lists (VTank's HudList) draw no such fill at all.

UiMarkupList.SelectionBandEnabled (default false) now gates the fill in
both OnDraw's legacy branch and DrawColumns; MarkupDocument parses
<list selectionband="true"> (same literal-bool convention as
openupward/clearonsubmit) to opt a single list back in. selected/onchange
semantics and scroll-into-view of the selected row are unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-09-07 17:49:27 +02:00
parent 69638584e8
commit 3cec9df4ab
4 changed files with 158 additions and 3 deletions
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7
docs/plugin-ui-markup.md
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@ -110,7 +110,7 @@ vanishing from the built tree.
| `slider` | Horizontal scalar | `x y w h value onchange anchor` |
| `field` | Single-line editable text | `x y w h text maxlength clearonsubmit onchange onsubmit color background anchor` |
| `menu` | Dropdown selector | `x y w h items selected onchange rows rowheight openupward style anchor` |
| `list` | Scrollable row list (+ Slice B icon column, + Campaign VT slice 1 multi-column) | `x y w h selected onchange rowheight anchor` + either the single-column `items colors icons iconkind`, or one-to-many `<column>` children (see "Columns" below) — never both |
| `list` | Scrollable row list (+ Slice B icon column, + Campaign VT slice 1 multi-column) | `x y w h selected onchange rowheight selectionband anchor` + either the single-column `items colors icons iconkind`, or one-to-many `<column>` children (see "Columns" below) — never both |
`menu style` is `plain` (the default) or `retail`: retail's gold pushbutton
art read as an out-of-place "big yellow button" next to a plugin's own dark
@ -410,6 +410,11 @@ attributes:
</list>
```
VVS lists draw no persistent row-selection fill, so `<list>` matches that by
default in both the single-column and `<column>` forms — a plugin that wants
a visible band anyway sets `selectionband="true"` (row selection itself,
including scroll-into-view, is unaffected either way).
This mirrors VTank's own Monsters tab (several boolean flag columns, a name
column, and icon-button columns) — see
`docs/research/vtank-kb/08-ui-views.md` §3's "Multi-column lists with typed