feat(sbb-header): introduce size s

.storybook/preview-head.html

@@ -37,7 +37,7 @@
     }
   }
 
-  @media screen and (width < 1023px) {
+  @media screen and (width < 1024px) {
     .sbb-header-spacer {
       display: none;
     }

src/elements/core/styles/core.scss

@@ -36,13 +36,21 @@
     // TODO: Check if infinity is supported by all browsers (e.g. Firefox) -> calc(1em * infinity);
     --sbb-border-radius-infinity: 10000000em;
 
+    &:has(sbb-header[size='s']) {
+      --sbb-header-height: #{functions.px-to-rem-build(52)};
+    }
+
     @include mediaqueries.mq($from: medium) {
       // Header
       --sbb-header-height: var(--sbb-spacing-fixed-24x);
 
       // Time Input
       --sbb-time-input-max-width: #{functions.px-to-rem-build(65)};
       --sbb-time-input-s-max-width: #{functions.px-to-rem-build(58)};
+
+      &:has(sbb-header[size='s']) {
+        --sbb-header-height: var(--sbb-spacing-fixed-14x);
+      }
     }
   }
 }
@@ -116,6 +124,21 @@ sbb-breadcrumb-group:not(:defined) {
   pointer-events: all;
 }
 
+// Helper class for the application name and version in sbb-header.
+.sbb-header-info {
+  @include typo.text-xs--regular;
+
+  display: flex;
+  padding-inline: var(--sbb-spacing-fixed-4x);
+  gap: var(--sbb-spacing-fixed-1x);
+  align-items: baseline;
+
+  strong + * {
+    font-size: var(--sbb-font-size-text-xxs);
+    color: var(--sbb-color-granite);
+  }
+}
+
 // In smaller title font-sizes, the space after the title is smaller than the default paragraph space before.
 // Due to margin collapsing, the wrong paragraph space wins.
 // To prevent the mistakenly large gap, we reset the paragraph space.

src/elements/header/common/header-action.scss

@@ -24,10 +24,15 @@
   --sbb-header-action-background-inset: 0;
   --sbb-header-action-translate-y: 0;
   --sbb-header-action-gap: var(--sbb-spacing-fixed-2x);
+  --sbb-header-action-icon-dimension: var(--sbb-size-icon-ui-small);
 
   // If expanded, move it left by left padding.
   // As result, the icon should be aligned with the left side of the page wrapper.
-  --sbb-header-first-item-margin-inline-start: calc(-1 * var(--sbb-header-action-padding-inline));
+  --_sbb-header-first-item-padding-shift: calc(-1 * var(--sbb-header-action-padding-inline));
+  --sbb-header-first-item-icon-shift: #{sbb.px-to-rem-build(2)};
+  --sbb-header-first-item-margin-inline-start: calc(
+    var(--_sbb-header-first-item-padding-shift) - var(--sbb-header-first-item-icon-shift)
+  );
 
   @include sbb.if-forced-colors {
     --sbb-header-action-border-color: CanvasText;
@@ -72,7 +77,10 @@
   text-decoration: none;
   min-height: var(--sbb-header-action-min-height);
   min-width: var(--sbb-header-action-min-width);
-  padding-inline: var(--sbb-header-action-padding-inline);
+  padding-inline: var(
+    --sbb-header-action-padding-inline-zero,
+    var(--sbb-header-action-padding-inline)
+  );
   cursor: pointer;
   user-select: none;
   outline: none;
@@ -121,8 +129,8 @@
   --sbb-icon-svg-stroke-color: currentcolor;
   --sbb-icon-svg-stroke-width: 1px;
 
-  min-width: var(--sbb-size-icon-ui-small);
-  min-height: var(--sbb-size-icon-ui-small);
+  min-width: var(--sbb-header-action-icon-dimension);
+  min-height: var(--sbb-header-action-icon-dimension);
   line-height: 0;
 }
 
@@ -142,10 +150,12 @@
       // the first element in the header and needs left offset correction (see sbb-header.scss).
       // To avoid duplicated css definitions, the value itself is assigned here in
       // sbb-header-button/sbb-header-link instead of sbb-header.
-      //
-      // Move it left by 12px in collapsed width.
-      --sbb-header-first-item-margin-inline-start: #{sbb.px-to-rem-build(-12)};
-      --sbb-header-action-padding-inline: 0;
+
+      // Move it left by padding of header action to the icon itself.
+      --_sbb-header-first-item-padding-shift: calc(
+        -0.5 * (var(--sbb-header-action-min-width) - var(--sbb-header-action-icon-dimension))
+      );
+      --sbb-header-action-padding-inline-zero: 0;
 
       .sbb-header-action__text {
         @include sbb.screen-reader-only;

src/elements/header/header/__snapshots__/header.snapshot.spec.snap.js

@@ -2,7 +2,7 @@
 export const snapshots = {};
 
 snapshots["sbb-header renders DOM"] = 
-`<sbb-header>
+`<sbb-header size="m">
 </sbb-header>
 `;
 /* end snapshot sbb-header renders DOM */
@@ -24,7 +24,7 @@ snapshots["sbb-header renders Shadow DOM"] =
 /* end snapshot sbb-header renders Shadow DOM */
 
 snapshots["sbb-header renders actions and logo DOM"] = 
-`<sbb-header>
+`<sbb-header size="m">
   <sbb-header-link
     data-action=""
     data-link=""

src/elements/header/header/header.scss

@@ -11,6 +11,7 @@
 
   // Overwrites logo in slotted and default case
   --sbb-logo-height: #{sbb.px-to-rem-build(16)};
+  --sbb-signet-height: #{sbb.px-to-rem-build(16)};
   --sbb-header-position: fixed;
   --sbb-header-transition-duration: var(
     --sbb-disable-animation-zero-time,
@@ -20,6 +21,7 @@
 
   @include sbb.mq($from: medium) {
     --sbb-logo-height: #{sbb.px-to-rem-build(20)};
+    --sbb-signet-height: #{sbb.px-to-rem-build(20)};
   }
 }
 
@@ -105,6 +107,13 @@
   margin-inline-start: var(--sbb-header-first-item-margin-inline-start);
 }
 
+::slotted(:is(sbb-header-button, sbb-header-link)) {
+  :host([size='s']) & {
+    --sbb-header-action-min-height: var(--sbb-size-element-xs);
+    --sbb-header-action-padding-inline: var(--sbb-spacing-fixed-4x);
+  }
+}
+
 ::slotted(*) {
   flex: 0 0 auto;
 }

src/elements/header/header/header.stories.ts

@@ -1,7 +1,7 @@
 import { withActions } from '@storybook/addon-actions/decorator';
 import type { InputType } from '@storybook/types';
 import type { Args, ArgTypes, Decorator, Meta, StoryObj } from '@storybook/web-components';
-import type { TemplateResult } from 'lit';
+import { nothing, type TemplateResult } from 'lit';
 import { html } from 'lit';
 
 import { sbbSpread } from '../../../storybook/helpers/spread.js';
@@ -13,6 +13,7 @@ import '../header-button.js';
 import '../header-link.js';
 import '../../divider.js';
 import '../../menu.js';
+import '../../signet.js';
 
 const LoremIpsumTemplate = (): TemplateResult => html`
   <div>
@@ -28,6 +29,13 @@ const LoremIpsumTemplate = (): TemplateResult => html`
   <br />
 `;
 
+const appName = (): TemplateResult => html`
+  <span class="sbb-header-info">
+    <strong>Name</strong>
+    <span>V. 1.1</span>
+  </span>
+`;
+
 const HeaderBasicTemplate = (
   { attributes, ...args }: Args,
   template: TemplateResult,
@@ -36,10 +44,11 @@ const HeaderBasicTemplate = (
     <sbb-header-button icon-name="hamburger-menu-small" expand-from="small">
       Menu
     </sbb-header-button>
+    ${args.size === 's' ? appName() : nothing}
     <div class="sbb-header-spacer"></div>
-    <sbb-header-link href="https://www.sbb.ch" target="_blank" icon-name="magnifying-glass-small"
-      >Search</sbb-header-link
-    >
+    <sbb-header-link href="https://www.sbb.ch" target="_blank" icon-name="magnifying-glass-small">
+      Search
+    </sbb-header-link>
     ${template}
     <sbb-header-button icon-name="globe-small" id="language-menu-trigger" class="last-element">
       English
@@ -50,8 +59,24 @@ const HeaderBasicTemplate = (
       <sbb-menu-button>Italiano</sbb-menu-button>
       <sbb-menu-button icon-name="tick-small">English</sbb-menu-button>
     </sbb-menu>
+    ${args.size === 's'
+      ? html`
+          <a slot="logo" aria-label="Homepage" href="/">
+            <sbb-signet slot="logo" protective-room="panel"></sbb-signet>
+          </a>
+        `
+      : html`
+          <a slot="logo" aria-label="Homepage" href="/">
+            <sbb-logo protective-room="none"></sbb-logo>
+          </a>
+        `}
   </sbb-header>
-  <div ${sbbSpread(attributes)}>${new Array(12).fill(null).map(LoremIpsumTemplate)}</div>
+  <div
+    class=${args.expanded ? `sbb-page-spacing-expanded` : `sbb-page-spacing`}
+    ${sbbSpread(attributes)}
+  >
+    ${new Array(12).fill(null).map(LoremIpsumTemplate)}
+  </div>
 `;
 
 const Template = (args: Args): TemplateResult => html`
@@ -94,40 +119,39 @@ const expanded: InputType = {
   control: {
     type: 'boolean',
   },
-  table: {
-    category: 'Header attribute',
-  },
 };
 
 const hideOnScroll: InputType = {
   control: {
     type: 'boolean',
   },
-  table: {
-    category: 'Header attribute',
-  },
 };
 
 const scrollOrigin: InputType = {
   control: {
     type: 'text',
   },
-  table: {
-    category: 'Header attribute',
+};
+
+const size: InputType = {
+  control: {
+    type: 'inline-radio',
   },
+  options: ['m', 's'],
 };
 
 const argTypes: ArgTypes = {
   expanded,
   'hide-on-scroll': hideOnScroll,
   'scroll-origin': scrollOrigin,
+  size,
 };
 
 const basicArgs: Args = {
   expanded: false,
   'hide-on-scroll': false,
   'scroll-origin': undefined,
-  attributes: { class: 'sbb-page-spacing' },
+  size: size.options![0],
 };
 
 export const Basic: StoryObj = {
@@ -142,10 +166,15 @@ export const Expanded: StoryObj = {
   args: {
     ...basicArgs,
     expanded: true,
-    attributes: { class: 'sbb-page-spacing-expanded' },
   },
 };
 
+export const SizeS: StoryObj = {
+  render: Template,
+  argTypes,
+  args: { ...basicArgs, size: size.options![1] },
+};
+
 export const WithUserMenu: StoryObj = {
   render: TemplateWithUserMenu,
   argTypes,
@@ -165,7 +194,6 @@ export const ExpandedScrollHide: StoryObj = {
     ...basicArgs,
     expanded: true,
     'hide-on-scroll': true,
-    attributes: { class: 'sbb-page-spacing-expanded' },
   },
 };
 
@@ -178,7 +206,6 @@ export const ContainerScrollOriginScrollHide: StoryObj = {
     'scroll-origin': 'container',
     attributes: {
       id: 'container',
-      class: 'sbb-page-spacing',
       style: 'height: 200px; overflow: auto;',
     },
   },

src/elements/header/header/header.ts

@@ -45,6 +45,9 @@ export class SbbHeaderElement extends SbbHydrationMixin(LitElement) {
   @property({ attribute: 'hide-on-scroll', reflect: true, type: Boolean }) public hideOnScroll =
     false;
 
+  /** Size of the header. */
+  @property({ reflect: true }) public size: 'm' | 's' = 'm';
+
   @state() private _headerOnTop = true;
 
   private _scrollElement: HTMLElement | Document | null | undefined;
@@ -126,7 +129,7 @@ export class SbbHeaderElement extends SbbHydrationMixin(LitElement) {
     ) {
       this._closeOpenOverlays();
     }
-    // Check if header is scrolled out of sight, scroll position > header height * 2.
+    // Check if the header is scrolled out of sight, scroll position > header height * 2.
     if (currentScroll > this.offsetHeight * 2) {
       this._headerOnTop = false;
       if (currentScroll > 0 && this._lastScroll < currentScroll) {