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feat(ui): a scrollbar held where it was taken, a popover that keeps the mouse, easing that lands

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- the scrollbar is .ui-scrollbar with a .ui-thumb, styled by the default sheet or a theme; a press
  on the thumb holds it at the point it was taken and the pointer moves it in proportion, a press on
  the track jumps the thumb's middle there and holds it, and neither presses what is under the bar
  (it used to centre the thumb on the pointer and press the row beneath as well);
- while a popover is up only scroll boxes inside it take the pointer, and a press outside it that
  closes it forgets any press in progress;
- a transition ends exactly on its value (it stopped a rounding error short, at every frame rate).

Tests: ui_popover_mouse, ui_scrollbar, ui_ease (60/120/180/240 Hz).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 21:39:28 +03:00
parent 9f59000f5b
commit a4c7a756f0
19 changed files with 299 additions and 29 deletions
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8
changes/defaults-views-templates.md
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@ -73,7 +73,13 @@ What a game's screens found missing, now in `ludic.ui`:
- a component root that is itself a component takes every user's class, style and id, and the
sheets that style it are weighed together by specificity;
- a component's event may be called `set`; a `string` prop given a number reads it as text; two
components of one name are an error naming both files.
components of one name are an error naming both files;
- the scrollbar is `.ui-scrollbar` and `.ui-thumb`: a press on the thumb holds it where it was taken,
a press on the track jumps the thumb's middle there, and neither presses what is under the bar;
- a popover's own controls take its presses whatever lies under it, a press outside only closes it,
and while one is up the scroll boxes outside it do not take the pointer;
- a transition lands exactly on its end value (it had stopped a rounding error short of it, at every
frame rate).
render3d gains `tex_width` / `tex_height`, and the XML reader keeps text runs among elements in
order (`mixed`).