Andreas Reinhold / reiniandClaude Sonnet 5
a149970dd0
Plan step 36 (containment group): <x-carousel>'s and <x-carousel-item>'s class lists move into resources/css/components/carousel.css and carousel-item.css, keyed on data-md-carousel (its value is the layout) and the parts' data-md-carousel-* hooks (-probe, -scroller, -controls with "auto"/"always", -previous/-next, -item, -surface, -content, -label/-label-text). Every selector uses a `>` combinator rather than a bare descendant one, because a carousel item can itself hold a nested carousel whose own root would otherwise match its parent's layout rules too (list.css already solves the same problem for segmented list rows). Behaviour is unchanged: resources/js/carousel.js (the keyline maths, C-05's reduced-motion fix, C-11's vertical full-screen layout, C-12's padding, C-18's item-as-tab-stop, the multi-aspect layout) is touched only where it reads or writes the renamed hooks and dataset properties; every inline custom property it writes (--material-carousel-*) is untouched. The item renders the shared md-focus-ring class (foundation/interaction.css) instead of a hand-rolled ring, refined to an inset offset since an outward one would draw under the neighbouring item. The previous/next buttons mirror whole in RTL from carousel.css rather than through <x-icon mirror-rtl>, which <x-button icon> has no prop to reach (a component outside this batch); the technique matches how the Tailwind-era markup already mirrored the whole button. The overlay label's literal white ink over the scrim (C-25) is kept, with the same reasoning as before. Hooks renamed data-material-carousel(-item/-surface/-content/-label) -> data-md-carousel(-item/-surface/-content/-label), data-padding(-end) -> data-md-padding(-end), data-centered -> data-md-centered, updated in the same commit: resources/js/carousel.js, tests/Feature/Components/ CarouselTest.php (rewritten on data-md-* and ComponentStylesheet) and tests/Browser/CarouselTest.php. Browser tests owed by docs/plans/material-3-browser-tests.md, added but not run: the multi-aspect carousel's previous/next, arrow keys, Home and End (scoped by data-md-carousel="multi-aspect" rather than a position in the showcase, so reordering its examples cannot silently mis-target the wrong carousel); a reduced-motion click on an item cut off only by the row's own edge, which documents rather than fixes a real gap — isMasked()'s inset check is always false once C-05 zeroes every item's inset, so the click-to-reveal affordance does not fire there (found by the Chromium baseline, step 32; fixing it is outside a hook rename). Imported from the Containment block of components.css. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
112 lines
4.8 KiB
CSS
112 lines
4.8 KiB
CSS
/*
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* <x-carousel-item>: one slide of an <x-carousel>, masked and shifted by the keyline maths
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* carousel.css's header describes, unless the row is full-screen or multi-aspect, where nothing
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* masks it at all (docs/reference/m3/components-actions-communication-containment.md § Carousel;
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* docs/audits/m3-alignment/containment.md, C-11, C-12, C-25).
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*
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* [data-md-carousel-item] the tab stop (C-18), a focusable `group`, `md-focus-ring`
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* [data-md-carousel-surface] the masked, shifted, extra-large-corner (28px) box
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* [data-md-carousel-content] the slot (an <img>, cropped)
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* [data-md-carousel-label] the "n of m"-named overlay on the scrim
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* [data-md-carousel-label-text]
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*
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* The item renders the shared `md-focus-ring` class (foundation/interaction.css) rather than a
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* hand-rolled ring — the box the class draws *is* the item's own whole hit area — refined here to
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* an inset ring: an item sits edge to edge with its neighbours in the row, so the class's own 2px
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* *outward* offset would draw under the next item instead of around this one.
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*
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* Full-screen: edge to edge, no corner, no mask — `--material-carousel-shift`/`-inset` go unread.
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* Multi-aspect: the view writes the item's own `aspect-ratio` inline (`aspect`, a prop, held
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* inside M3's 9:16–16:9 range); the extra-large corner still applies but nothing masks it, since
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* an Arrangement describes items of one size and a multi-aspect row has none. Selectors use `>`
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* throughout, matching carousel.css, so a carousel nested inside an item never inherits its
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* parent's layout rules.
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*
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* The label's ink is a literal `white`, not a role: it sits over `--md-sys-color-scrim`, which is
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* black in every scheme, theme and contrast level, so white is the one ink that always has the
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* scrim's contrast — a role (`inverse-on-surface`) is dark ink in a dark scheme and fails there
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* (C-25, deliberately kept, as the component's original header explained).
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*/
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@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
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@layer material.components {
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[data-md-carousel-item] {
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position: relative;
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height: 100%;
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flex-shrink: 0;
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scroll-snap-align: start;
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scroll-snap-stop: always;
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}
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[data-md-carousel-item]:focus-visible {
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outline-offset: -12px;
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}
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[data-md-carousel='full-screen'] > [data-md-carousel-scroller] > [data-md-carousel-item] {
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width: 100%;
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}
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[data-md-carousel='multi-aspect'] > [data-md-carousel-scroller] > [data-md-carousel-item] {
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width: auto;
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border-radius: var(--md-sys-shape-corner-xl);
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}
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[data-md-carousel]:not([data-md-carousel='full-screen']):not([data-md-carousel='multi-aspect']) > [data-md-carousel-scroller] > [data-md-carousel-item] {
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width: var(--material-carousel-slot);
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max-width: 100%;
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border-radius: var(--md-sys-shape-corner-xl);
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}
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[data-md-carousel-item] > [data-md-carousel-surface] {
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position: relative;
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width: 100%;
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height: 100%;
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overflow: hidden;
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background-color: var(--md-sys-color-surface-container-highest);
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color: var(--md-sys-color-on-surface);
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}
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[data-md-carousel='multi-aspect'] > [data-md-carousel-scroller] > [data-md-carousel-item] > [data-md-carousel-surface] {
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border-radius: var(--md-sys-shape-corner-xl);
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}
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[data-md-carousel]:not([data-md-carousel='full-screen']):not([data-md-carousel='multi-aspect']) > [data-md-carousel-scroller] > [data-md-carousel-item] > [data-md-carousel-surface] {
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border-radius: var(--md-sys-shape-corner-xl);
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translate: var(--material-carousel-shift) 0;
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clip-path: inset(0 var(--material-carousel-inset, 0px) round var(--md-sys-shape-corner-xl));
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}
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[data-md-carousel-surface] > [data-md-carousel-content] {
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width: 100%;
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height: 100%;
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& > img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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}
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}
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[data-md-carousel-surface] > [data-md-carousel-label] {
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pointer-events: none;
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position: absolute;
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inset-inline: 0;
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bottom: 0;
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display: flex;
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padding: var(--md-sys-measurement-space500) var(--md-sys-measurement-space200) var(--md-sys-measurement-space200);
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background: linear-gradient(to top, color-mix(in srgb, var(--md-sys-color-scrim) 60%, transparent), transparent);
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opacity: var(--material-carousel-label);
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}
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[data-md-carousel-label] > [data-md-carousel-label-text] {
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overflow: hidden;
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color: white;
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font: var(--md-sys-typescale-title-md);
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letter-spacing: var(--md-sys-typescale-title-md-tracking);
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text-overflow: ellipsis;
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white-space: nowrap;
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translate: var(--material-carousel-label-shift) 0;
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}
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}
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