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

<script lang="ts">
	import {
		MonthGrid,
		type MonthGridColor,
		type MonthGridProviderSnippetProps,
		type MonthGridSize,
		type MonthGridVariant,
		type MonthValue
	} from '$uix/eidos/components/month-grid';
	import { compileMorfo } from '$uix/morfo';
	import { monthGridMorfo } from '@/uix/morfo/components/month-grid';
	import { getActiveUix } from '$active-uix';

	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
	type TraceEntry = { event: string; family: string; intent?: string; at: number };
	type MorfoEventView = {
		name: string;
		target: string;
		semantic: { family: string; verb?: string; sequence?: string; intent?: unknown };
	};

	const uix = getActiveUix();
	type EmitSignal = Parameters<NonNullable<typeof uix.events>['emit']>[0];

	let tab = $state<Tab>('live');
	let trace = $state<TraceEntry[]>([]);
	let stageRef = $state<HTMLElement | null>(null);
	let value = $state<MonthValue | undefined>({ year: 2026, month: 5 });
	let placeholder = $state<{ year: number; month?: number }>({ year: 2026 });
	let disabled = $state(false);
	let readonly = $state(false);
	let monthFormat = $state<'long' | 'short' | 'narrow'>('short');
	let locale = $state('en-US');
	let dir = $state<'ltr' | 'rtl'>('ltr');
	let size = $state<MonthGridSize>('md');
	let variant = $state<MonthGridVariant>('surface');
	let color = $state<MonthGridColor>('primary');
	let useMin = $state(false);
	let useMax = $state(false);

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

	const minValue = $derived<MonthValue | undefined>(useMin ? { year: 2026, month: 3 } : undefined);
	const maxValue = $derived<MonthValue | undefined>(useMax ? { year: 2026, month: 10 } : undefined);

	const valueLabel = $derived(value ? `${value.year}-${value.month}` : 'empty');
	const placeholderLabel = $derived(`${placeholder.year}`);

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

	function playEvent(action: MorfoEventView): void {
		const intent = typeof action.semantic.intent === 'string' ? action.semantic.intent : undefined;
		const signal: EmitSignal = {
			name: action.name,
			family: action.semantic.family as EmitSignal['family'],
			target: stageRef ?? document.body
		};
		if (intent) (signal as unknown as { intent: string }).intent = intent;
		uix.events?.emit(signal);
	}

	$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 somaSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import * as MonthGrid from '$soma/components/month-grid';",
			'',
			`  let value = $state<{ year: number; month: number } | undefined>(${value ? `{ year: ${value.year}, month: ${value.month} }` : 'undefined'});`,
			`  let placeholder = $state({ year: ${placeholder.year} });`,
			'</' + 'script>',
			'',
			'<MonthGrid.Provider',
			'  bind:value',
			'  bind:placeholder',
			disabled && '  disabled',
			readonly && '  readonly',
			minValue && `  minValue={{ year: ${minValue.year}, month: ${minValue.month} }}`,
			maxValue && `  maxValue={{ year: ${maxValue.year}, month: ${maxValue.month} }}`,
			monthFormat !== 'short' && `  monthFormat="${monthFormat}"`,
			locale !== 'en-US' && `  locale="${locale}"`,
			dir !== 'ltr' && `  dir="${dir}"`,
			'>',
			'  {#snippet children({ months })}',
			'    <MonthGrid.Header>',
			'      <MonthGrid.PrevButton>‹</MonthGrid.PrevButton>',
			'      <MonthGrid.Heading />',
			'      <MonthGrid.NextButton>›</MonthGrid.NextButton>',
			'    </MonthGrid.Header>',
			'    <MonthGrid.Grid>',
			'      {#each months as month (month)}',
			'        <MonthGrid.Cell {month} />',
			'      {/each}',
			'    </MonthGrid.Grid>',
			'  {/snippet}',
			'</MonthGrid.Provider>'
		]
			.filter(Boolean)
			.join('\n')
	);

	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { MonthGrid } from '$uix/eidos/components/month-grid';",
			'',
			`  let value = $state<{ year: number; month: number } | undefined>(${value ? `{ year: ${value.year}, month: ${value.month} }` : 'undefined'});`,
			`  let placeholder = $state({ year: ${placeholder.year} });`,
			'</' + 'script>',
			'',
			'<MonthGrid',
			'  bind:value',
			'  bind:placeholder',
			size !== 'md' && `  size="${size}"`,
			variant !== 'surface' && `  variant="${variant}"`,
			color !== 'primary' && `  color="${color}"`,
			disabled && '  disabled',
			readonly && '  readonly',
			minValue && `  minValue={{ year: ${minValue.year}, month: ${minValue.month} }}`,
			maxValue && `  maxValue={{ year: ${maxValue.year}, month: ${maxValue.month} }}`,
			monthFormat !== 'short' && `  monthFormat="${monthFormat}"`,
			locale !== 'en-US' && `  locale="${locale}"`,
			dir !== 'ltr' && `  dir="${dir}"`,
			'>',
			'  {#snippet children({ months })}',
			'    <MonthGrid.Header>',
			'      <MonthGrid.PrevButton>‹</MonthGrid.PrevButton>',
			'      <MonthGrid.Heading />',
			'      <MonthGrid.NextButton>›</MonthGrid.NextButton>',
			'    </MonthGrid.Header>',
			'    <MonthGrid.Grid>',
			'      {#each months as month (month)}',
			'        <MonthGrid.Cell {month} />',
			'      {/each}',
			'    </MonthGrid.Grid>',
			'  {/snippet}',
			'</MonthGrid>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Forms · MonthGrid</div>
		<h1 data-uix-page-title>MonthGrid</h1>
		<p data-uix-page-lede>
			Standalone month picker — 12 cells (Jan..Dec) for a single year, prev/next year navigation,
			full keyboard support and morfo-declared semantic events. Parallel to the inline
			Calendar's month view but works without a calendar context.
		</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>value</span>{valueLabel}
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>year</span>{placeholderLabel}
			</span>
		</div>
	</header>

	<div data-uix-stage>
		<div data-uix-stage-area bind:this={stageRef}>
			<MonthGrid
				bind:value
				bind:placeholder
				{disabled}
				{readonly}
				{minValue}
				{maxValue}
				{monthFormat}
				{locale}
				{dir}
				{size}
				{variant}
				{color}
			>
				{#snippet children({ months }: MonthGridProviderSnippetProps)}
					<MonthGrid.Header>
						<MonthGrid.PrevButton>&lt;</MonthGrid.PrevButton>
						<MonthGrid.Heading />
						<MonthGrid.NextButton>&gt;</MonthGrid.NextButton>
					</MonthGrid.Header>
					<MonthGrid.Grid>
						{#each months as month (month)}
							<MonthGrid.Cell {month} />
						{/each}
					</MonthGrid.Grid>
				{/snippet}
			</MonthGrid>
		</div>
		<div data-uix-stage-trace>
			<span data-uix-stage-trace-key>trace</span>
			{#if trace.length === 0}
				<span>click a month or use prev/next</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>value</span>
				{valueLabel}
			</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</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>
			<div data-uix-subsection-head>
				<span data-uix-layer-badge="soma">soma</span> props · value, placeholder, bounds
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>value <span data-uix-control-hint>{valueLabel}</span></span>
					<span data-uix-chips role="group">
						<button data-uix-chip data-active={value?.month === 5} onclick={() => (value = { year: 2026, month: 5 })}>May 2026</button>
						<button data-uix-chip data-active={value?.month === 6} onclick={() => (value = { year: 2026, month: 6 })}>Jun 2026</button>
						<button data-uix-chip data-active={value === undefined} onclick={() => (value = undefined)}>empty</button>
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>placeholder year</span>
					<span data-uix-chips role="radiogroup">
						{#each [2025, 2026, 2027] as y (y)}
							<button data-uix-chip data-active={placeholder.year === y} onclick={() => (placeholder = { year: y })}>{y}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>state flags</span>
					<span data-uix-switch><input type="checkbox" bind:checked={disabled} /><span data-uix-switch-label>disabled</span></span>
					<span data-uix-switch><input type="checkbox" bind:checked={readonly} /><span data-uix-switch-label>readonly</span></span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>bounds</span>
					<span data-uix-switch><input type="checkbox" bind:checked={useMin} /><span data-uix-switch-label>min=Mar 2026</span></span>
					<span data-uix-switch><input type="checkbox" bind:checked={useMax} /><span data-uix-switch-label>max=Oct 2026</span></span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>monthFormat</span>
					<span data-uix-chips role="radiogroup">
						{#each ['long', 'short', 'narrow'] as v (v)}
							<button data-uix-chip data-active={monthFormat === v} onclick={() => (monthFormat = v as typeof monthFormat)}>{v}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>locale</span>
					<select bind:value={locale}>
						<option value="en-US">en-US</option>
						<option value="es-ES">es-ES</option>
						<option value="fr-FR">fr-FR</option>
					</select>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>direction</span>
					<span data-uix-chips role="radiogroup">
						{#each ['ltr', 'rtl'] as v (v)}
							<button data-uix-chip data-active={dir === v} onclick={() => (dir = v as 'ltr' | 'rtl')}>{v}</button>
						{/each}
					</span>
				</label>
			</div>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="eidos">eidos</span> props · visual treatment
			</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 v (v)}
							<button data-uix-chip data-active={size === v} onclick={() => (size = v as MonthGridSize)}>{v}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>variant</span>
					<span data-uix-chips role="radiogroup">
						{#each ['surface', 'outline', 'ghost'] as v (v)}
							<button data-uix-chip data-active={variant === v} onclick={() => (variant = v as MonthGridVariant)}>{v}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>color</span>
					<span data-uix-chips role="radiogroup">
						{#each ['primary', 'secondary', 'neutral', 'affirm', 'risk'] as v (v)}
							<button data-uix-chip data-active={color === v} onclick={() => (color = v as MonthGridColor)}>{v}</button>
						{/each}
					</span>
				</label>
			</div>

			<div data-uix-code>
				<div data-uix-code-head>
					<span data-uix-layer-badge="soma">soma</span>
					<span>headless · standalone month picker</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 · root plus parts</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>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Owner</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>soma</td><td class="default">undefined</td><td>Selected `{`{ year, month }`}` pair.</td></tr>
						<tr><td class="name">placeholder <span data-uix-tag data-kind="bindable">bindable</span></td><td>soma</td><td class="default">today's year</td><td>Anchor year for the 12-month grid.</td></tr>
						<tr><td class="name">minValue / maxValue</td><td>soma</td><td class="default empty">-</td><td>Disables cells outside the bound.</td></tr>
						<tr><td class="name">disabled / readonly</td><td>soma</td><td class="default">false</td><td>Root state.</td></tr>
						<tr><td class="name">monthFormat</td><td>soma</td><td class="default">'short'</td><td>Intl month-name length.</td></tr>
						<tr><td class="name">locale / dir</td><td>soma</td><td class="default">services</td><td>Label formatting and directional arrow keys.</td></tr>
						<tr><td class="name">size <span data-uix-tag data-kind="eidos">eidos</span></td><td>eidos</td><td class="default">md</td><td>Visual scale.</td></tr>
						<tr><td class="name">variant <span data-uix-tag data-kind="eidos">eidos</span></td><td>eidos</td><td class="default">surface</td><td>Surface treatment.</td></tr>
						<tr><td class="name">color <span data-uix-tag data-kind="eidos">eidos</span></td><td>eidos</td><td class="default">primary</td><td>Intent palette for selected month.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Reference comparison</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Feature</th><th>Ark UI</th><th>React Aria</th><th>Chakra</th><th>Bits UI</th><th>UIX</th></tr></thead>
					<tbody>
						<tr><td class="name">Standalone month grid</td><td>part of DatePicker</td><td>via composition</td><td>no</td><td>via Calendar</td><td>first-class</td></tr>
						<tr><td class="name">Bounds (min/max)</td><td>yes</td><td>yes</td><td>-</td><td>yes</td><td>yes</td></tr>
						<tr><td class="name">Keyboard nav</td><td>yes</td><td>yes</td><td>-</td><td>yes</td><td>yes</td></tr>
						<tr><td class="name">Locale labels</td><td>yes</td><td>yes</td><td>-</td><td>yes</td><td>yes</td></tr>
						<tr><td class="name">Semantic events</td><td>callbacks</td><td>callbacks</td><td>-</td><td>callbacks</td><td>commit-set / nav-step</td></tr>
					</tbody>
				</table>
			</div>
		</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>
			<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>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.optional ? 'yes' : 'no'}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'sema'}
		<section data-uix-section>
			<h2 data-uix-section-title>
				<span data-uix-layer-badge="sema">sema</span> · events
			</h2>
			<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><th>Play</th></tr></thead>
					<tbody>
						{#each events as action (action.name)}
							{@const intentDecl = action.semantic.intent}
							<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">{typeof intentDecl === 'string' ? intentDecl : intentDecl ? 'fromProp' : '-'}</td>
								<td class="type">{action.target}</td>
								<td><button data-uix-chip onclick={() => playEvent(action)}>▶ 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>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Selector</th><th>Purpose</th></tr></thead>
					<tbody>
						<tr><td class="name"><code>[data-month-grid]</code></td><td>Root surface, size and variant tokens.</td></tr>
						<tr><td class="name"><code>[data-month-grid-header]</code></td><td>Three-column nav header (prev · heading · next).</td></tr>
						<tr><td class="name"><code>[data-month-grid-grid]</code></td><td>3×4 month grid.</td></tr>
						<tr><td class="name"><code>[data-month-grid-cell][data-selected]</code></td><td>Selected month tile.</td></tr>
						<tr><td class="name"><code>[data-month-grid-cell][data-current]</code></td><td>Today's month accent.</td></tr>
						<tr><td class="name"><code>[data-month-grid-cell][data-disabled]</code></td><td>Out of bounds / disabled.</td></tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'a11y'}
		<section data-uix-section>
			<h2 data-uix-section-title>Accessibility</h2>
			<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>←</span> / <span data-uix-kbd>→</span></td><td>Move focus ±1 month (RTL-flipped).</td></tr>
						<tr><td><span data-uix-kbd>↑</span> / <span data-uix-kbd>↓</span></td><td>Move focus ±3 months (row width).</td></tr>
						<tr><td><span data-uix-kbd>Home</span> / <span data-uix-kbd>End</span></td><td>First / last month of year.</td></tr>
						<tr><td><span data-uix-kbd>PageUp</span> / <span data-uix-kbd>PageDown</span></td><td>±1 year (also moves placeholder).</td></tr>
						<tr><td><span data-uix-kbd>Enter</span> / <span data-uix-kbd>Space</span></td><td>Select focused month.</td></tr>
					</tbody>
				</table>
			</div>
			<div data-uix-subsection-head>APG</div>
			<p>Follows <a href="https://www.w3.org/WAI/ARIA/apg/patterns/grid/" rel="noreferrer" target="_blank">WAI-ARIA APG Grid</a> pattern: <code>role="grid"</code> on the grid container, <code>role="gridcell"</code> + roving <code>tabindex</code> on cells.</p>
		</section>
	{/if}
</div>