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livewire-material/resources/css/components/list-item.css
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Andreas Reinhold / reiniandClaude Opus 5 bae1df09da
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Give a segmented list item a fill that reads against the page
`ItemSegmentedContainerColor get() = ColorSchemeKeyTokens.Surface`
(ListTokens.kt, C-21) was taken literally, but foundation/base.css
paints the page `surface` too — so a segmented list was invisible on any
default page. The token reads against a Compose scaffold, not against
this package's own page.

The tile is `surface-container` now, the step M3 names for a container
that has to read against the page, and what 1.x drew. Found in
SealShare: the files chosen for an upload list under the drop zone with
nothing to set them apart from it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-15 22:23:16 +02:00

260 lines
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/*
* <x-list-item>: a headline with what leads it, what supports it and what trails it, one- two- or
* three-line by `data-md-lines` (56/72/88px, `ListTokens.kt:180,323,347`, androidx Compose
* Material 3, Apache-2.0) — the tallest element sets the height, and a three-line item top-aligns
* rather than centring (docs/reference/m3/components-actions-communication-containment.md
* § Lists → Specs). Leading/trailing gap and container padding are both `space200` (16px,
* `ItemLeadingSpace`/`ItemTrailingSpace`/container padding, C-14).
*
* `data-md-list-row` (`resources/js/list-rows.js`, shared with `<x-card>` and an application's own
* table rows) and `[data-md-list-open]:focus-visible` answer with the state layer — the row's ink at
* the hover 8% and focus/press 10% state tokens — and a 3px secondary inset ring; excluded on
* `[data-md-card]`, which draws its own tint through the shared `md-state-layer` class instead
* (card.css). The layer is mixed over the row's own fill, `--md-list-row-fill` (a segmented tile's
* surface, a selected item's secondary-container, table.css's selected row), so a hovered, pressed
* or focused row keeps its fill under the tint instead of trading it for a translucent one (C-08's
* second fix). `data-md-selected` is M3's selected item, secondary-container filled, which also
* lifts the description/overline/trailing/icon colour rules below since they exclude it — the
* container's own colour takes over by inheritance. A selected option draws a second cue, a
* trailing check, so selection is never colour alone (C-03). `aria-disabled` inks the whole item
* on-surface at the disabled-content opacity (38%) and blocks the pointer; the view drops the
* item's link entirely rather than leaving a focusable, activatable control behind it (C-02).
*
* `data-md-list="segmented"` items (M3 Expressive) are `surface-container` tiles (one tone up from
* `ItemSegmentedContainerColor`, so they read against the package's own `surface` page;
* C-21), 4px corners that open to 16px at the list's own ends and while hovered (12px), pressed,
* focused or selected (16px) — the specs page's interaction-state expressive shapes (C-22). Leading
* icons there are drawn at 20px, not scaled down from 24 — list-item.blade.php passes `size` to
* `<x-icon>` from the parent's `@aware(['segmented'])`, so no CSS override is needed here (C-26).
*
* `data-md-dividers` on the list insets its rule 16px from both ends (`DividerLeadingSpace`/
* `DividerTrailingSpace`, C-16) rather than full-bleed.
*
* Leading media: `data-md-list-item-avatar` is 40px, full corner, initials in primary-container
* when it is a `<span>`, an image otherwise; `data-md-list-item-image` is a 56px small-corner
* thumbnail; `data-md-list-item-video` is M3's leading video in its two sizes,
* `data-md-size="sm"` 100×56px (a two-line item) or `"lg"` 114×64px (a three-line item),
* `LeadingVideoSmall`/`LeadingVideoLarge`.
*/
@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
@import './icon.css';
@layer material.components {
[data-md-list-item] {
position: relative;
display: flex;
align-items: center;
gap: var(--md-sys-measurement-space200);
padding-inline: var(--md-sys-measurement-space200);
color: var(--md-sys-color-on-surface);
}
[data-md-list-item][data-md-lines='1'] {
min-height: 56px;
padding-block: var(--md-sys-measurement-space100);
}
[data-md-list-item][data-md-lines='2'] {
min-height: 72px;
padding-block: var(--md-sys-measurement-space100);
}
[data-md-list-item][data-md-lines='3'] {
min-height: 88px;
padding-block: 12px;
align-items: flex-start;
}
/* A row's fill, under its state layer. Declared on every row at no weight, so a row nested in a
filled one starts from nothing rather than inheriting its parent's fill. */
:where([data-md-list-row]) {
--md-list-row-fill: transparent;
}
/* M3 Expressive's segmented list gives each item its own container: ListTokens.kt:201,
`ItemSegmentedContainerColor get() = ColorSchemeKeyTokens.Surface`. One tone up from that,
because the token reads against a Compose scaffold and this package paints the page
`surface` itself (foundation/base.css): a surface tile on a surface page is a list nobody
can see. `surface-container` is the step M3 names for a container that has to read against
the page, and what 1.x drew. Before the selected rule, which outranks it on the same
weight. */
[data-md-list='segmented'] > [data-md-list-item] {
--md-list-row-fill: var(--md-sys-color-surface-container);
background-color: var(--md-list-row-fill);
}
[data-md-list-item][data-md-selected] {
--md-list-row-fill: var(--md-sys-color-secondary-container);
background-color: var(--md-list-row-fill);
color: var(--md-sys-color-on-secondary-container);
}
[data-md-list-item][aria-disabled='true'] {
pointer-events: none;
color: color-mix(in srgb, var(--md-sys-color-on-surface) calc(var(--md-sys-state-disabled-content-opacity) * 100%), transparent);
}
[data-md-list-item]:not([data-md-selected], [aria-disabled='true']) :is([data-md-list-item-overline], [data-md-list-item-description], [data-md-list-item-trailing], [data-md-list-item-icon]) {
color: var(--md-sys-color-on-surface-variant);
}
[data-md-list-item-leading],
[data-md-list-item-end] {
display: flex;
flex-shrink: 0;
align-items: center;
}
[data-md-list-item-end] {
gap: var(--md-sys-measurement-space50);
}
[data-md-list-item-video] {
flex-shrink: 0;
overflow: hidden;
border-radius: var(--md-sys-shape-corner-sm);
background-color: var(--md-sys-color-surface-container-highest);
& > * {
width: 100%;
height: 100%;
object-fit: cover;
}
}
[data-md-list-item-video][data-md-size='sm'] {
width: 100px;
height: 56px;
}
[data-md-list-item-video][data-md-size='lg'] {
width: 114px;
height: 64px;
}
[data-md-list-item-avatar] {
flex-shrink: 0;
width: 40px;
height: 40px;
border-radius: var(--md-sys-shape-corner-full);
object-fit: cover;
}
span[data-md-list-item-avatar] {
display: grid;
place-items: center;
background-color: var(--md-sys-color-primary-container);
color: var(--md-sys-color-on-primary-container);
font: var(--md-sys-typescale-title-md);
letter-spacing: var(--md-sys-typescale-title-md-tracking);
}
[data-md-list-item-image] {
flex-shrink: 0;
width: 56px;
height: 56px;
border-radius: var(--md-sys-shape-corner-sm);
object-fit: cover;
}
[data-md-list-item-content] {
min-width: 0;
flex: 1 1 0%;
}
[data-md-list-item-overline] {
font: var(--md-sys-typescale-label-sm);
letter-spacing: var(--md-sys-typescale-label-sm-tracking);
}
[data-md-list-item-title] {
display: block;
overflow: hidden;
outline: none;
font: var(--md-sys-typescale-body-lg);
letter-spacing: var(--md-sys-typescale-body-lg-tracking);
text-overflow: ellipsis;
white-space: nowrap;
}
[data-md-list-item-description] {
overflow: hidden;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 2;
font: var(--md-sys-typescale-body-md);
letter-spacing: var(--md-sys-typescale-body-md-tracking);
}
[data-md-list-item-trailing] {
flex-shrink: 0;
font: var(--md-sys-typescale-label-sm);
letter-spacing: var(--md-sys-typescale-label-sm-tracking);
}
[data-md-list][data-md-dividers] > [data-md-list-item]:not(:last-child)::after {
content: '';
position: absolute;
inset-inline: var(--md-sys-measurement-space200);
bottom: 0;
height: 1px;
background-color: var(--md-sys-color-outline-variant);
pointer-events: none;
}
[data-md-list-row] {
cursor: pointer;
transition-property: background-color, border-radius;
transition-duration: var(--md-sys-motion-effects-fast-duration), var(--md-sys-motion-spatial-fast-duration);
transition-timing-function: var(--md-sys-motion-effects-fast), var(--md-sys-motion-spatial-fast);
}
@media (hover: hover) {
[data-md-list-row]:not([data-md-card]):hover:not(:has(:is(a, button, input, select, textarea, label, summary):not([data-md-list-open]):hover)) {
background-color: color-mix(in srgb, currentColor calc(var(--md-sys-state-hover-state-layer-opacity) * 100%), var(--md-list-row-fill, transparent));
}
}
[data-md-list-row]:not([data-md-card]):has([data-md-list-open]:focus-visible) {
background-color: color-mix(in srgb, currentColor calc(var(--md-sys-state-focus-state-layer-opacity) * 100%), var(--md-list-row-fill, transparent));
outline: 3px solid var(--md-sys-color-secondary);
outline-offset: -3px;
}
[data-md-list-row]:not([data-md-card]):active:not(:has(:is(a, button, input, select, textarea, label, summary):not([data-md-list-open]):active)) {
background-color: color-mix(in srgb, currentColor calc(var(--md-sys-state-pressed-state-layer-opacity) * 100%), var(--md-list-row-fill, transparent));
}
[data-md-list-row] [data-md-list-open]:focus-visible {
outline: none;
}
[data-md-list='segmented'] > [data-md-list-item] {
border-radius: var(--md-sys-shape-corner-xs);
}
[data-md-list='segmented'] > [data-md-list-item]:first-child {
border-start-start-radius: var(--md-sys-shape-corner-lg);
border-start-end-radius: var(--md-sys-shape-corner-lg);
}
[data-md-list='segmented'] > [data-md-list-item]:last-child {
border-end-start-radius: var(--md-sys-shape-corner-lg);
border-end-end-radius: var(--md-sys-shape-corner-lg);
}
@media (hover: hover) {
[data-md-list='segmented'] > [data-md-list-item][data-md-list-row]:hover {
border-radius: var(--md-sys-shape-corner-md);
}
}
[data-md-list='segmented'] > [data-md-list-item]:is([data-md-selected], [data-md-list-row]:active, [data-md-list-row]:has([data-md-list-open]:focus-visible)) {
border-radius: var(--md-sys-shape-corner-lg);
}
}