svelte-kit-vice/web/routes/uix/components/menubar/+page.svelte

<script lang="ts">
	import {
		Menubar,
		type MenubarSize
	} from '$uix/eidos/components/menubar';
	import { compileMorfo } from '$uix/morfo';
	import { menubarMorfo } from '@/uix/morfo/components/menubar';
	import { getActiveUix } from '$active-uix';

	const uix = getActiveUix();

	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
	let tab = $state<Tab>('live');

	// ── Live state ────────────────────────────────────────────────────────
	let activeMenu = $state(''); // which menu is open
	let size = $state<MenubarSize>('md');
	let dir = $state<'ltr' | 'rtl'>('ltr');
	let loop = $state(true);

	// Bound state from inner items
	let showStatusBar = $state(true);
	let theme = $state<'light' | 'dark' | 'system'>('system');
	let viewLayers = $state<string[]>(['ruler', 'grid']);

	let lastSelected = $state<string | null>(null);
	function pickItem(label: string) {
		return () => {
			lastSelected = label;
		};
	}

	type TraceEntry = { event: string; family: string; intent?: string; at: number };
	let trace = $state<TraceEntry[]>([]);
	let stageRef = $state<HTMLElement | null>(null);

	$effect(() => {
		const el = stageRef;
		if (!el) return;
		const obs = new MutationObserver((mutations) => {
			for (const m of mutations) {
				if (m.attributeName !== 'data-event') continue;
				const target = m.target as Element;
				const ev = target.getAttribute('data-event');
				if (!ev) continue;
				trace = [
					{
						event: ev,
						family: target.getAttribute('data-event-family') ?? '—',
						intent: target.getAttribute('data-event-intent') ?? undefined,
						at: Date.now()
					},
					...trace
				].slice(0, 6);
			}
		});
		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
		return () => obs.disconnect();
	});

	const compiled = compileMorfo(menubarMorfo);
	const partsList = $derived([...compiled.parts.byKebab.values()]);
	const events = $derived([...compiled.actions.byName.values()]);

	function fmtTime(at: number): string {
		const d = new Date(at);
		return `${String(d.getSeconds()).padStart(2, '0')}.${String(d.getMilliseconds()).padStart(3, '0')}`;
	}

	const somaSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import * as Menubar from '$soma/components/menubar';",
			'  let value = $state("");',
			'</' + 'script>',
			'',
			'<Menubar.Provider',
			'  bind:value',
			dir !== 'ltr' && `  dir="${dir}"`,
			!loop && '  loop={false}',
			'>',
			'  <Menubar.Menu value="file">',
			'    <Menubar.Trigger>File</Menubar.Trigger>',
			'    <Menubar.Content>',
			'      <Menubar.Item onSelect={…}>New</Menubar.Item>',
			'      <Menubar.Separator />',
			'      <Menubar.Item onSelect={…}>Quit</Menubar.Item>',
			'    </Menubar.Content>',
			'  </Menubar.Menu>',
			'</Menubar.Provider>'
		]
			.filter(Boolean)
			.join('\n')
	);

	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { Menubar } from '$uix/eidos/components/menubar';",
			'  let value = $state("");',
			'</' + 'script>',
			'',
			'<Menubar',
			'  bind:value',
			size !== 'md' && `  size="${size}"`,
			dir !== 'ltr' && `  dir="${dir}"`,
			!loop && '  loop={false}',
			'>',
			'  <Menubar.Menu value="file">',
			'    <Menubar.Trigger>File</Menubar.Trigger>',
			'    <Menubar.Content>',
			'      <Menubar.Item onSelect={…}>New</Menubar.Item>',
			'      <Menubar.Separator />',
			'      <Menubar.Item onSelect={…}>Quit</Menubar.Item>',
			'    </Menubar.Content>',
			'  </Menubar.Menu>',
			'</Menubar>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Navigation · Menubar</div>
		<h1 data-uix-page-title>Menubar</h1>
		<p data-uix-page-lede>
			Desktop File / Edit / View bar. Exactly one menu open at a time;
			hover a sibling trigger while a menu is open to switch without an
			intermediate click. Soma owns active-menu state + cross-menu
			ArrowLeft/Right + typeahead + focus return on Escape. Per-menu
			Item / Sub / Checkbox / Radio chrome is shared with
			<code>DropdownMenu</code> — same parts, same recipe, same
			menu-indicator (checkbox/radio glyphs match the standalone
			<code>Checkbox</code> / <code>RadioGroup</code>).
		</p>
		<div data-uix-page-meta>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>events</span>{events.length}
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>sizes</span>3
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>apg</span>
				<a href={menubarMorfo.apg} target="_blank" rel="noreferrer">menubar ↗</a>
			</span>
			{#if lastSelected}
				<span data-uix-meta-pill>
					<span data-uix-meta-key>last</span>{lastSelected}
				</span>
			{/if}
		</div>
	</header>

	<div data-uix-stage>
		<div data-uix-stage-area bind:this={stageRef} style="min-block-size: 14rem; display: flex; flex-direction: column; align-items: flex-start; gap: var(--uix-space-3); padding: var(--uix-space-4);">
			<Menubar bind:value={activeMenu} {size} {dir} {loop}>
				<Menubar.Menu value="file">
					<Menubar.Trigger>File</Menubar.Trigger>
					<Menubar.Portal>
						<Menubar.Content>
							<Menubar.Item onSelect={pickItem('New tab')}>New tab</Menubar.Item>
							<Menubar.Item onSelect={pickItem('New window')}>New window</Menubar.Item>
							<Menubar.Item disabled>New incognito (offline)</Menubar.Item>
							<Menubar.Separator />
							<Menubar.Sub>
								<Menubar.SubTrigger>Open recent</Menubar.SubTrigger>
								<Menubar.SubContent>
									<Menubar.Item onSelect={pickItem('project.svelte')}>project.svelte</Menubar.Item>
									<Menubar.Item onSelect={pickItem('readme.md')}>readme.md</Menubar.Item>
									<Menubar.Item onSelect={pickItem('package.json')}>package.json</Menubar.Item>
									<Menubar.Separator />
									<Menubar.Item onSelect={pickItem('Clear recent')}>Clear recent</Menubar.Item>
								</Menubar.SubContent>
							</Menubar.Sub>
							<Menubar.Separator />
							<Menubar.Item onSelect={pickItem('Print…')}>Print…</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Quit')}>Quit</Menubar.Item>
						</Menubar.Content>
					</Menubar.Portal>
				</Menubar.Menu>

				<Menubar.Menu value="edit">
					<Menubar.Trigger>Edit</Menubar.Trigger>
					<Menubar.Portal>
						<Menubar.Content>
							<Menubar.Item onSelect={pickItem('Undo')}>Undo</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Redo')}>Redo</Menubar.Item>
							<Menubar.Separator />
							<Menubar.Item onSelect={pickItem('Cut')}>Cut</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Copy')}>Copy</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Paste')}>Paste</Menubar.Item>
							<Menubar.Separator />
							<Menubar.Item onSelect={pickItem('Find…')}>Find…</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Replace…')}>Replace…</Menubar.Item>
						</Menubar.Content>
					</Menubar.Portal>
				</Menubar.Menu>

				<Menubar.Menu value="view">
					<Menubar.Trigger>View</Menubar.Trigger>
					<Menubar.Portal>
						<Menubar.Content>
							<Menubar.CheckboxItem bind:checked={showStatusBar}>
								Show status bar
							</Menubar.CheckboxItem>
							<Menubar.Separator />
							<Menubar.Group>
								<Menubar.GroupHeading>Layers</Menubar.GroupHeading>
								<Menubar.CheckboxGroup bind:value={viewLayers}>
									<Menubar.CheckboxItem value="ruler">Ruler</Menubar.CheckboxItem>
									<Menubar.CheckboxItem value="grid">Grid</Menubar.CheckboxItem>
									<Menubar.CheckboxItem value="guides">Guides</Menubar.CheckboxItem>
								</Menubar.CheckboxGroup>
							</Menubar.Group>
							<Menubar.Separator />
							<Menubar.Group>
								<Menubar.GroupHeading>Theme</Menubar.GroupHeading>
								<Menubar.RadioGroup bind:value={theme}>
									<Menubar.RadioItem value="light">Light</Menubar.RadioItem>
									<Menubar.RadioItem value="dark">Dark</Menubar.RadioItem>
									<Menubar.RadioItem value="system">System</Menubar.RadioItem>
								</Menubar.RadioGroup>
							</Menubar.Group>
						</Menubar.Content>
					</Menubar.Portal>
				</Menubar.Menu>

				<Menubar.Menu value="help">
					<Menubar.Trigger>Help</Menubar.Trigger>
					<Menubar.Portal>
						<Menubar.Content>
							<Menubar.Item onSelect={pickItem('Docs')}>Documentation</Menubar.Item>
							<Menubar.Item onSelect={pickItem('Shortcuts')}>Keyboard shortcuts</Menubar.Item>
							<Menubar.Separator />
							<Menubar.Item onSelect={pickItem('About')}>About UIX</Menubar.Item>
						</Menubar.Content>
					</Menubar.Portal>
				</Menubar.Menu>
			</Menubar>
		</div>
		<div data-uix-stage-trace>
			<span data-uix-stage-trace-key>trace</span>
			{#if trace.length === 0}
				<span>click a trigger or arrow-nav between menus</span>
			{:else}
				{#each trace.slice(0, 3) as entry}
					<span><span data-uix-stage-trace-event>{entry.event}</span> · {entry.family}{entry.intent ? ' · ' + entry.intent : ''}</span>
					<span style="color: var(--uix-text-faint)">{fmtTime(entry.at)}</span>
				{/each}
			{/if}
			<span style="margin-inline-start: auto;">
				<span data-uix-stage-trace-key>active</span> {activeMenu || '—'}
			</span>
		</div>
	</div>

	<div data-uix-tabs role="tablist">
		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
			API <span data-uix-tab-count>17</span>
		</button>
		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
			<span data-uix-layer-badge="morfo">morfo</span>
			<span data-uix-tab-count>{partsList.length}p · {events.length}e</span>
		</button>
		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
			<span data-uix-layer-badge="sema">sema</span>
			<span data-uix-tab-count>{events.length}</span>
		</button>
		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}>Recipe</button>
		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
	</div>

	{#if tab === 'live'}
		<section data-uix-section>
			<h2 data-uix-section-title>Controls</h2>
			<p data-uix-section-desc>
				Soma owns active-menu state + keyboard nav across menus. Eidos
				adds <code>size</code> on the root and propagates it to per-menu Content via context.
			</p>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="soma">soma</span> Provider props
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>value <span data-uix-control-hint>open menu id</span></span>
					<input type="text" bind:value={activeMenu} placeholder="(none open)" />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>dir</span>
					<span data-uix-chips role="radiogroup">
						{#each ['ltr', 'rtl'] as d (d)}
							<button data-uix-chip data-active={dir === d} onclick={() => (dir = d as typeof dir)}>{d}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>loop <span data-uix-control-hint>cross-menu arrow wraps</span></span>
					<span data-uix-switch>
						<input type="checkbox" bind:checked={loop} />
						<span data-uix-switch-label>{loop ? 'on' : 'off'}</span>
					</span>
				</label>
			</div>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="eidos">eidos</span> visual size
				<span style="font-weight: normal; color: var(--uix-text-muted);">
					· bar height + trigger padding + font-size + per-menu density
				</span>
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>size</span>
					<span data-uix-chips role="radiogroup">
						{#each ['sm', 'md', 'lg'] as s (s)}
							<button data-uix-chip data-active={size === s} onclick={() => (size = s as MenubarSize)}>{s}</button>
						{/each}
					</span>
				</label>
			</div>

			<div data-uix-subsection-head>
				Bound state
				<span style="font-weight: normal; color: var(--uix-text-muted);">
					· mirrors of CheckboxItem / CheckboxGroup / RadioGroup
				</span>
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>showStatusBar <span data-uix-control-hint>CheckboxItem</span></span>
					<span data-uix-switch>
						<input type="checkbox" bind:checked={showStatusBar} />
						<span data-uix-switch-label>{showStatusBar ? 'on' : 'off'}</span>
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>viewLayers <span data-uix-control-hint>CheckboxGroup array</span></span>
					<input type="text" value={viewLayers.join(', ') || '(empty)'} readonly />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>theme <span data-uix-control-hint>RadioGroup</span></span>
					<span data-uix-chips role="radiogroup">
						{#each ['light', 'dark', 'system'] as t (t)}
							<button data-uix-chip data-active={theme === t} onclick={() => (theme = t as typeof theme)}>{t}</button>
						{/each}
					</span>
				</label>
			</div>

			<div data-uix-code>
				<div data-uix-code-head>
					<span data-uix-layer-badge="soma">soma</span>
					<span>headless · active-menu state + cross-menu nav</span>
					<span data-uix-code-lang>svelte</span>
				</div>
				<pre><code>{somaSnippet}</code></pre>
			</div>

			<div data-uix-code style="margin-top: var(--uix-space-3);">
				<div data-uix-code-head>
					<span data-uix-layer-badge="eidos">eidos</span>
					<span>visual · bar surface + trigger states + size context</span>
					<span data-uix-code-lang>svelte</span>
				</div>
				<pre><code>{eidosSnippet}</code></pre>
			</div>
		</section>
	{/if}

	{#if tab === 'api'}
		<section data-uix-section>
			<h2 data-uix-section-title>API reference</h2>
			<p data-uix-section-desc>
				Three menubar-specific parts (Provider, Menu, Trigger, Content)
				plus DropdownMenu's full inner surface for Item / Sub /
				Checkbox / Radio. The inner parts share recipes with
				<a href="/uix/components/dropdown-menu">DropdownMenu</a> — the
				menu-indicator shared partial (checkbox/radio glyphs) applies
				automatically.
			</p>

			<div data-uix-subsection-head>Provider</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
					<tbody>
						<tr><td class="name">value <span data-uix-tag data-kind="bindable">bindable</span></td><td class="type">string</td><td class="default">''</td><td>Identifier of the currently open menu. Empty = none open.</td></tr>
						<tr><td class="name">onValueChange</td><td class="type">(value: string) =&gt; void</td><td class="default empty">—</td><td>Fires when the active menu changes.</td></tr>
						<tr><td class="name">dir</td><td class="type">'ltr' | 'rtl'</td><td class="default">'ltr'</td><td>Direction for cross-menu arrow nav.</td></tr>
						<tr><td class="name">loop</td><td class="type">boolean</td><td class="default">true</td><td>Wrap cross-menu arrow at edges.</td></tr>
						<tr><td class="name">size <span data-uix-tag data-kind="eidos">eidos</span></td><td class="type">ResponsiveProp&lt;'sm' | 'md' | 'lg'&gt;</td><td class="default">'md'</td><td>Visual size — bar height + trigger padding + per-menu density (via context).</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Menu</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
					<tbody>
						<tr><td class="name">value</td><td class="type">string</td><td class="default empty">—</td><td>Unique identifier for this menu inside the menubar.</td></tr>
						<tr><td class="name">onOpenChange / onOpenChangeComplete</td><td class="type">(open: boolean) =&gt; void</td><td class="default empty">—</td><td>Per-menu open/close + animation-settle callbacks.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Trigger</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
					<tbody>
						<tr><td class="name">disabled</td><td class="type">boolean</td><td class="default">false</td><td>Disable opening this menu via this trigger.</td></tr>
						<tr><td class="name">…native button attrs</td><td class="type">PrimitiveButtonAttributes</td><td class="default empty">—</td><td>Renders a native <code>&lt;button&gt;</code>; all HTML button attrs flow through.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Content</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
					<tbody>
						<tr><td class="name">side · sideOffset · align · alignOffset · avoidCollisions · …</td><td class="type">FloatingLayerProps</td><td class="default empty">—</td><td>Same surface as <a href="/uix/components/dropdown-menu">DropdownMenu.Content</a>.</td></tr>
						<tr><td class="name">data-size <span data-uix-tag data-kind="eidos">eidos</span></td><td class="type">auto</td><td class="default empty">from Menubar root</td><td>Stamped via context — no need to pass per Content.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Inner parts (shared with DropdownMenu)</div>
			<p data-uix-section-desc style="margin-top: 0.25rem;">
				<code>Item</code>, <code>Group</code>, <code>GroupHeading</code>,
				<code>Separator</code>, <code>Arrow</code>, <code>CheckboxItem</code>,
				<code>CheckboxGroup</code>, <code>RadioGroup</code>, <code>RadioItem</code>,
				<code>Sub</code>, <code>SubTrigger</code>, <code>SubContent</code> —
				identical API to <a href="/uix/components/dropdown-menu">DropdownMenu</a>.
				Eidos re-uses those wrappers so the recipe (and the
				menu-indicator shared partial) is one source of truth.
			</p>
		</section>
	{/if}

	{#if tab === 'morfo'}
		<section data-uix-section>
			<h2 data-uix-section-title>
				<span data-uix-layer-badge="morfo">morfo</span>
				· declarative contract
			</h2>
			<p data-uix-section-desc>
				Source: <code>src/uix/morfo/components/menubar.ts</code>.
			</p>

			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Field</th><th>Value</th></tr></thead>
					<tbody>
						<tr><td class="name">name</td><td class="type">"{menubarMorfo.name}"</td></tr>
						<tr><td class="name">kebab</td><td class="type">"{menubarMorfo.kebab}"</td></tr>
						<tr><td class="name">scope</td><td class="type">[{menubarMorfo.scope.map((s) => `"${s}"`).join(', ')}]</td></tr>
						<tr><td class="name">apg</td><td><a href={menubarMorfo.apg} target="_blank" rel="noreferrer">{menubarMorfo.apg}</a></td></tr>
						<tr><td class="name">parts.length</td><td class="default">{menubarMorfo.parts.length}</td></tr>
						<tr><td class="name">events.length</td><td class="default">{events.length}</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Parts</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Part</th><th>Marker</th><th>Element</th><th>Role</th><th>Archetype</th><th>States</th><th>Optional</th></tr></thead>
					<tbody>
						{#each partsList as part (part.kebab)}
							<tr>
								<td class="name">{part.kebab}</td>
								<td><code data-uix-part-marker>[{part.marker}]</code></td>
								<td class="type">&lt;{part.defaultElement}&gt;</td>
								<td class="type">{part.role ?? '—'}</td>
								<td class="default">{part.archetype ?? '—'}</td>
								<td class="default">{part.states.length ? part.states.join(' | ') : '—'}</td>
								<td class="default">{part.optional ? 'yes' : 'no'}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Events declaration</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>name</th><th>family</th><th>verb</th><th>sequence</th><th>intent</th><th>target</th></tr></thead>
					<tbody>
						{#each events as action (action.name)}
							{@const sem = action.semantic}
							{@const intentDecl = 'intent' in sem ? sem.intent : undefined}
							{@const intentStr = typeof intentDecl === 'string' ? intentDecl : intentDecl ? `fromProp:${(intentDecl as { fromProp?: string }).fromProp ?? '?'}` : '—'}
							<tr>
								<td class="name">{action.name}</td>
								<td class="type">{sem.family}</td>
								<td>{sem.verb ?? '—'}</td>
								<td>{sem.sequence ?? 'pre'}</td>
								<td class="default">{intentStr}</td>
								<td>{action.target}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'sema'}
		<section data-uix-section id="sema">
			<h2 data-uix-section-title>
				<span data-uix-layer-badge="sema">sema</span>
				· events + perceptual signature
			</h2>
			<p data-uix-section-desc>
				One event — <code>commit-select</code> — fires when an Item is
				activated. Open/close of individual menus rides on
				DropdownMenu's events via the re-exported parts.
			</p>

			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Name</th><th>Family</th><th>Verb</th><th>Sequence</th><th>Intent</th><th>Play</th></tr></thead>
					<tbody>
						{#each events as action (action.name)}
							{@const intentDecl = 'intent' in action.semantic ? action.semantic.intent : undefined}
							{@const effectiveIntent = typeof intentDecl === 'string' ? intentDecl : undefined}
							<tr>
								<td class="name">{action.name}</td>
								<td class="type">{action.semantic.family}</td>
								<td>{action.semantic.verb ?? '—'}</td>
								<td>{action.semantic.sequence ?? 'pre'}</td>
								<td class="default">{effectiveIntent ?? '—'}</td>
								<td>
									<button
										data-uix-play
										onclick={() => {
											const target = (stageRef?.querySelector('[data-menubar-trigger]') ?? stageRef) as HTMLElement | null;
											if (!target) return;
											void uix.events?.emit({
												name: action.name,
												family: action.semantic.family,
												target,
												...(effectiveIntent ? { intent: effectiveIntent } : {})
											});
										}}
									>▶ play</button>
								</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'recipe'}
		<section data-uix-section>
			<h2 data-uix-section-title>Eidos recipe</h2>
			<p data-uix-section-desc>
				Selectors at <code>src/uix/eidos/components/menubar/menubar.css</code>
				(bar + trigger only). Per-menu Content / Item / Sub / Checkbox / Radio
				chrome is reused from <code>dropdown-menu.css</code> + the shared
				<code>menu-indicator.css</code> partial because soma's Menubar re-exports
				the DropdownMenu parts for those slots.
			</p>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Selector</th><th>Source</th><th>What it paints</th></tr></thead>
					<tbody>
						<tr><td class="name">[data-menubar]</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>The bar surface — flex row, border, bg.</td></tr>
						<tr><td class="name">[data-menubar][data-size]</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Size variant (sm/md/lg) — height + padding + gap + font.</td></tr>
						<tr><td class="name">[data-menubar-trigger]</td><td><span data-uix-tag data-kind="soma">morfo</span></td><td>In-bar trigger: transparent bg, hover/open tint, focus ring.</td></tr>
						<tr><td class="name">[data-menubar-trigger][data-state='open']</td><td><span data-uix-tag data-kind="soma">morfo</span></td><td>Open menu's trigger lights up with primary tint.</td></tr>
						<tr><td class="name">[data-dropdown-menu-content], [data-dropdown-menu-item], …</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Inner panel + items — shared with DropdownMenu.</td></tr>
						<tr><td class="name">[data-dropdown-menu-checkbox-item]::before, ::after</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Checkbox indicator — outlined box / filled + ✓ via shared menu-indicator partial.</td></tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'a11y'}
		<section data-uix-section>
			<h2 data-uix-section-title>Accessibility</h2>
			<p data-uix-section-desc>
				Follows the APG <a href={menubarMorfo.apg} target="_blank" rel="noreferrer">menubar pattern</a>.
				Bar exposes <code>role="menubar"</code>; each per-menu Content is
				<code>role="menu"</code>. Trigger has <code>aria-haspopup="menu"</code>,
				<code>aria-expanded</code> and <code>aria-controls</code>.
			</p>

			<div data-uix-subsection-head>Keyboard</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Key</th><th>Action</th></tr></thead>
					<tbody>
						<tr><td><span data-uix-kbd>ArrowRight</span> / <span data-uix-kbd>ArrowLeft</span> on Trigger</td><td>Move focus to next/previous trigger (wraps if <code>loop=true</code>; RTL inverts).</td></tr>
						<tr><td><span data-uix-kbd>Enter</span> / <span data-uix-kbd>Space</span> / <span data-uix-kbd>ArrowDown</span> on Trigger</td><td>Open the menu, focus first item.</td></tr>
						<tr><td><span data-uix-kbd>ArrowUp</span> / <span data-uix-kbd>ArrowDown</span> on Item</td><td>Move within the menu.</td></tr>
						<tr><td><span data-uix-kbd>ArrowLeft</span> / <span data-uix-kbd>ArrowRight</span> on Item</td><td>Close current menu, focus + open prev/next menu.</td></tr>
						<tr><td><span data-uix-kbd>Escape</span></td><td>Close the menu, return focus to its Trigger.</td></tr>
						<tr><td><span data-uix-kbd>Home</span> / <span data-uix-kbd>End</span></td><td>Jump to first / last item.</td></tr>
						<tr><td>Letter</td><td>Typeahead — focus next item starting with that letter.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Pointer</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Gesture</th><th>Behavior</th></tr></thead>
					<tbody>
						<tr><td>Click trigger</td><td>Opens its menu (or closes if already open).</td></tr>
						<tr><td>Hover sibling trigger while a menu is open</td><td>Switches to the hovered menu without an intermediate click.</td></tr>
						<tr><td>Click outside</td><td>Closes the active menu.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>ARIA contract</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Part</th><th>Attribute</th><th>Value</th></tr></thead>
					<tbody>
						<tr><td class="name">menubar</td><td>role</td><td class="type">"menubar"</td></tr>
						<tr><td class="name">trigger</td><td>aria-haspopup</td><td class="type">"menu"</td></tr>
						<tr><td class="name">trigger</td><td>aria-expanded</td><td class="type">{`{open}`}</td></tr>
						<tr><td class="name">trigger</td><td>aria-controls</td><td class="type">{`<content id>`}</td></tr>
						<tr><td class="name">trigger</td><td>data-state</td><td class="type">"open" | "closed"</td></tr>
						<tr><td class="name">content</td><td>role</td><td class="type">"menu"</td></tr>
						<tr><td class="name">content</td><td>aria-labelledby</td><td class="type">{`<trigger id>`}</td></tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}
</div>