Plan step 22, actions.md § Missing (Selection-required / multi-select
semantics): M3 lists single-select, multi-select and selection-required as
button-group configurations, and `<x-button-group connected>` left
selection entirely to the caller's own `aria-pressed`.
`selection="single|multi"`, with `required`, takes `aria-pressed` over:
pressing a button writes its `value` to `wire:model` or `x-model`,
deselects the others in `single`, and refuses the press that would leave
nothing selected. With no model it reads the buttons' own `aria-pressed`
once and goes on from there.
`<x-group>` and this do not absorb one another, and the header and
SKILL.md say why: `<x-group>` is for a choice whose options are data — it
renders real inputs, posts in a plain form and paints its own segments —
and stays the first thing to reach for; a selection group governs buttons
the caller writes, manages state and shape, and leaves each button to draw
its own colours from its own `:selected`.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
Plan step 22, actions.md § Missing (Square-by-default button groups): M3
lists "Default shape | Round, square" as a button-group configuration and
neither `<x-button-group>` nor `<x-group>` had a `shape` prop, so a group
of square buttons still drew round outer corners.
`shape="square"` passes the square corner scale to every child through
`data-shape` and two new variables in groups.css: `--group-outer` is what
the two ends of a group round to (half the height when round, the corner
its inner edges take when square — M3's square table, 4/8/8/16/20dp), and
`--group-square`/`--group-square-pressed` give a standard group's buttons
the scale `<x-button shape="square">` draws. The selected rules keep
`--group-full`, so a selected button in a square group rounds: M3 has a
toggle inside a group swap shape on selection either way.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
ButtonXSmallTokens puts 16dp either side of an xs label, where the button, the
<x-group> segment and --group-pad all wrote 12px; the variants table calls 16dp
the Expressive value twice over. A standard button group also dropped onto a
second line on a narrow window, which M3 forbids — and the press expansion only
ever reaches a neighbour on the same line. Plan step 18, actions.md ACT-09,
ACT-10.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
<x-button> (label buttons, icon buttons and toggles in five sizes, with
filled, tonal, outlined, elevated and text variants in any colour role),
<x-tooltip>, <x-menu> with items, groups and separators, <x-button-group>,
<x-group> as a connected button group, <x-split-button>, <x-fab>,
<x-fab-menu> and <x-loading>. Sizes, colours and shapes come from
androidx Compose Material 3's tokens; the loading indicator ports its
Morph into SVG + SMIL.
Menus follow WAI-ARIA's menu button pattern on popovers placed by CSS
anchor positioning. Browser tests run in Chromium, Firefox and WebKit.
The showcase fetches the icon names on demand: inlined, they tripped
Pest's test server into HTTP 431s under Firefox.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy
