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Draw the navigation bar and bar item without Tailwind

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Plan step 36 (navigation group, second batch): <x-navigation-bar>'s and
<x-navigation-bar-item>'s class lists move into
resources/css/components/navigation-bar.css and navigation-bar-item.css,
keyed on data-md-navigation-bar (data-md-tall, data-md-hide-on-scroll/
-hidden) and data-md-navigation-bar-item (data-md-active), both in
material.components. The indicator's growing fill and its state layer,
shared with the rail's item, move into a new navigation-item.css both
files import — the day's own layer in datepicker.css is the precedent
for keeping it out of the shared foundation classes: the element
focused and pressed is the whole item, the layer drawn only on the
smaller indicator or pill inside it, which md-state-layer cannot do and
:focus-visible never matches. The wash colour moves from a dead
on-surface base overridden by both items to a shared on-secondary-
container declaration, and its opacities from literal 0.08/0.1 to
state.css's own tokens — no visible change, since the numbers matched.

Every size is px (16dp Tailwind quirks aside, this file had none); the
bar's own item-count and container-query layout, N-08's label-medium
fix and N-19's on-secondary-container wash already matched the audit,
so only hooks, units and layer needed to change.

The scaffold's hide-on-scroll offset rule (`--material-bottom-bar`,
navigation-bar.css) stays unlayered: <x-scaffold> still publishes that
variable with a Tailwind utility until its own rewrite, and a rule in
any layer loses to it regardless of specificity — unlike the FAB
overrides the rail commit moves into material.components, which only
have to beat another material.components rule.

navigation.css is not deleted yet (still Tailwind's for the rail); its
"Navigation" comment in tailwind.css narrows as each stream leaves.
navigation-bar.css is not in NavigationStylesheetsTest.php's dataset:
its one unlayered rule breaks that test's "every block is
material.components" assumption, so the same checks are in
NavigationBarTest.php instead, the same reason ErrorPagesTest.php
carries error-page.css's.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9
This commit is contained in:
Andreas Reinhold / reini
2026-09-15 00:08:34 +02:00
co-authored by Claude Sonnet 5
parent 1f9384efdf
commit 63d421ccb6
8 changed files with 414 additions and 55 deletions
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resources/css/components/navigation-bar-item.css
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/*
* `<x-navigation-bar-item>`: one destination in an `<x-navigation-bar>`
* (NavigationBarVerticalItemTokens.kt, NavigationBarHorizontalItemTokens.kt, androidx Compose
* Material 3, Apache-2.0).
*
* [data-md-navigation-bar-item] data-md-active; the link or button itself
* [data-md-navigation-pill] icon and label; becomes the indicator from 600px
* [data-md-navigation-indicator] the 56×32 indicator around the icon below 600px
* [data-md-navigation-icon] the floating badge's anchor (navigation-item.css)
* [data-md-navigation-label]
*
* Below 600px (the bar's own width — a container query, so a bar in a narrow column keeps this
* layout) the icon sits in a 56×32 `CornerFull` indicator over a label-medium label, both equally
* wide. From 600px icon and label share a 40px horizontal indicator with 16px leading and
* trailing space; the label stays label-medium — `NavigationBarTokens.LabelTextFont` is the bar's
* only label token, and Compose's `ShortNavigationBarItem` passes it for both icon positions (the
* *rail's* horizontal item is label-large, a different component's token; N-08). An active item is
* secondary-container behind on-secondary-container (icon and, from 600px, label); its indicator's
* fill is a background image so it can grow from its centre (navigation-item.css) rather than
* stretch the icon.
*
* The indicator's growing fill and its state layer are shared with the rail's item
* (navigation-item.css); only this file's focus ring and the display swap between the two
* indicator shapes are the bar's own.
*/
@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
@import './icon.css';
@import './badge.css';
@import './navigation-item.css';
@layer material.components {
[data-md-navigation-bar-item] {
--navigation-layer: 0;
position: relative;
display: flex;
flex: 1 1 0%;
min-width: 0;
align-items: center;
justify-content: center;
padding-block: 6px;
color: var(--md-sys-color-on-surface-variant);
text-decoration: none;
cursor: pointer;
outline: none;
-webkit-tap-highlight-color: transparent;
}
[data-md-navigation-bar-item][data-md-active] {
color: var(--md-sys-color-secondary);
}
[data-md-navigation-bar-item] [data-md-navigation-pill] {
display: flex;
min-width: 0;
max-width: 100%;
flex-direction: column;
align-items: center;
gap: 4px;
border-radius: var(--md-sys-shape-corner-full);
font: var(--md-sys-typescale-label-md);
letter-spacing: var(--md-sys-typescale-label-md-tracking);
}
[data-md-navigation-bar-item] [data-md-navigation-label] {
max-width: 100%;
padding-inline: 4px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
[data-md-navigation-bar-item] [data-md-navigation-indicator] {
position: relative;
isolation: isolate;
display: flex;
flex-shrink: 0;
align-items: center;
justify-content: center;
width: 56px;
height: 32px;
border-radius: var(--md-sys-shape-corner-full);
}
/* Vertical layout (below 600px, or a tall bar at any width): the indicator fills behind the
icon; the pill draws no layer of its own. */
[data-md-navigation-bar-item][data-md-active] [data-md-navigation-indicator] {
background-image: linear-gradient(var(--md-sys-color-secondary-container), var(--md-sys-color-secondary-container));
color: var(--md-sys-color-on-secondary-container);
}
[data-md-navigation-bar-item] [data-md-navigation-pill]::before {
display: none;
}
[data-md-navigation-bar-item]:focus-visible [data-md-navigation-indicator] {
outline: 3px solid var(--md-sys-color-secondary);
outline-offset: 2px;
}
/* Horizontal layout, from 600px: the pill itself fills and takes the layer; the indicator
stops drawing either. Only the short bar (a tall bar keeps the vertical layout). */
@container (width >= 600px) {
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item] {
min-width: max-content;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item] [data-md-navigation-pill] {
position: relative;
isolation: isolate;
flex-direction: row;
height: 40px;
padding-inline: 16px;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item] [data-md-navigation-label] {
padding-inline: 0;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item][data-md-active] {
color: var(--md-sys-color-on-secondary-container);
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item][data-md-active] [data-md-navigation-pill] {
background-image: linear-gradient(var(--md-sys-color-secondary-container), var(--md-sys-color-secondary-container));
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item][data-md-active] [data-md-navigation-indicator] {
background-image: none;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item] [data-md-navigation-pill]::before {
display: block;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item] [data-md-navigation-indicator]::before {
display: none;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item]:focus-visible [data-md-navigation-indicator] {
outline: none;
}
[data-md-navigation-bar]:not([data-md-tall]) [data-md-navigation-bar-item]:focus-visible [data-md-navigation-pill] {
outline: 3px solid var(--md-sys-color-secondary);
outline-offset: 2px;
}
}
}