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

<script lang="ts">
	import { Meter, type MeterShape, type MeterSize } from '$uix/eidos/components/meter';
	import { compileMorfo } from '$uix/morfo';
	import { meterMorfo } from '@/uix/morfo/components/meter';

	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
	type TraceEntry = { event: string; family: string; intent?: string; at: number };

	let tab = $state<Tab>('live');
	let trace = $state<TraceEntry[]>([]);
	let stageRef = $state<HTMLElement | null>(null);
	let value = $state(72);
	let min = $state(0);
	let max = $state(100);
	let low = $state(25);
	let high = $state(80);
	let optimum = $state(60);
	let size = $state<MeterSize>('md');
	let shape = $state<MeterShape>('linear');
	let labelText = $state('Storage usage');
	let valueTextOverride = $state('');

	const valueText = $derived(valueTextOverride.trim() || undefined);
	const zone = $derived(value < low ? 'below' : value > high ? 'above' : 'optimum');

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

	$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 = $derived(
		[
			"<script lang='ts'>",
			"  import * as Meter from '$soma/components/meter';",
			`  let value = $state(${value});`,
			'</' + 'script>',
			'',
			'<Meter.Provider',
			'  {value}',
			min !== 0 && `  min={${min}}`,
			max !== 100 && `  max={${max}}`,
			low !== min && `  low={${low}}`,
			high !== max && `  high={${high}}`,
			optimum !== (low + high) / 2 && `  optimum={${optimum}}`,
			valueText && `  valueText="${valueText}"`,
			`  aria-label="${labelText}"`,
			'>',
			'  <Meter.Indicator />',
			'</Meter.Provider>'
		]
			.filter(Boolean)
			.join('\n')
	);

	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { Meter } from '$uix/eidos/components/meter';",
			`  let value = $state(${value});`,
			'</' + 'script>',
			'',
			'<Meter',
			'  {value}',
			size !== 'md' && `  size="${size}"`,
			shape !== 'linear' && `  shape="${shape}"`,
			min !== 0 && `  min={${min}}`,
			max !== 100 && `  max={${max}}`,
			low !== min && `  low={${low}}`,
			high !== max && `  high={${high}}`,
			optimum !== (low + high) / 2 && `  optimum={${optimum}}`,
			valueText && `  valueText="${valueText}"`,
			`  aria-label="${labelText}"`,
			'>',
			'  <Meter.Indicator />',
			'</Meter>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Status · Meter</div>
		<h1 data-uix-page-title>Meter</h1>
		<p data-uix-page-lede>
			Known-range measurement primitive for values such as storage, battery or score. Soma owns <code
				>role="meter"</code
			>, thresholds and zone state; Eidos adds visual size, shape and recipe styling.
		</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>shapes</span>2</span>
			<span data-uix-meta-pill><span data-uix-meta-key>zones</span>3</span>
		</div>
	</header>

	<div data-uix-stage>
		<div data-uix-stage-area bind:this={stageRef}>
			<div style="inline-size: min(30rem, 100%); display: grid; gap: var(--uix-space-3);">
				<div
					style="display: flex; justify-content: space-between; gap: var(--uix-space-3); color: var(--uix-text-muted); font-size: 0.9rem;"
				>
					<span>{labelText}</span>
					<span>{value} / {max}</span>
				</div>
				<Meter
					{value}
					{min}
					{max}
					{low}
					{high}
					{optimum}
					{size}
					{shape}
					{valueText}
					aria-label={labelText}
				>
					<Meter.Indicator />
				</Meter>
			</div>
		</div>
		<div data-uix-stage-trace>
			<span data-uix-stage-trace-key>trace</span>
			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
			<span style="color: var(--uix-text-faint)">·</span>
			<span data-uix-stage-trace-key>zone</span>
			<span data-uix-stage-trace-event>{zone}</span>
			<span style="color: var(--uix-text-faint)">·</span>
			<span data-uix-stage-trace-key>value</span>
			<span>{value} / {max}</span>
			<span style="margin-inline-start: auto;">
				<span data-uix-stage-trace-key>size</span>
				{size}
				<span data-uix-stage-trace-key style="margin-inline-start: var(--uix-space-2);">shape</span>
				{shape}
			</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>10</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>
				Controls are grouped by owner. <span data-uix-layer-badge="soma">soma</span>
				owns measurement, thresholds and zone; <span data-uix-layer-badge="eidos">eidos</span>
				owns visual size and shape.
			</p>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="soma">soma</span> props · measurement
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>value <span data-uix-control-hint>{value}</span></span>
					<input type="range" bind:value {min} {max} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>min</span>
					<input type="number" bind:value={min} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>max</span>
					<input type="number" bind:value={max} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>low</span>
					<input type="number" bind:value={low} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>high</span>
					<input type="number" bind:value={high} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>optimum</span>
					<input type="number" bind:value={optimum} />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>valueText override</span>
					<input type="text" bind:value={valueTextOverride} placeholder="e.g. 72 GB used" />
				</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 ['xs', 'sm', 'md', 'lg', 'xl'] as s}
							<button data-uix-chip data-active={size === s} onclick={() => (size = s as MeterSize)}
								>{s}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>shape</span>
					<span data-uix-chips role="radiogroup">
						{#each ['linear', 'circular'] as s}
							<button
								data-uix-chip
								data-active={shape === s}
								onclick={() => (shape = s as MeterShape)}>{s}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>label text</span>
					<input type="text" bind:value={labelText} />
				</label>
			</div>

			<div data-uix-code>
				<div data-uix-code-head>
					<span data-uix-layer-badge="soma">soma</span>
					<span>headless · ARIA + zone contract</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 · adds size + shape</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>Type</th><th>Default</th><th>Description</th></tr></thead>
					<tbody>
						<tr
							><td class="name">value</td><td class="type">number</td><td class="default">0</td><td
								>Current measurement.</td
							></tr
						>
						<tr
							><td class="name">min / max</td><td class="type">number</td><td class="default"
								>0 / 100</td
							><td>Meter bounds.</td></tr
						>
						<tr
							><td class="name">low / high / optimum</td><td class="type">number</td><td
								class="default">min / max / midpoint</td
							><td>Thresholds for `below`, `optimum`, `above` zone state.</td></tr
						>
						<tr
							><td class="name">valueText</td><td class="type">string</td><td class="default empty"
								>—</td
							><td>Accessible value text override.</td></tr
						>
						<tr
							><td class="name">aria-label / aria-labelledby</td><td class="type">string</td><td
								class="default">translated Meter</td
							><td>Accessible name.</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>Track thickness.</td></tr
						>
						<tr
							><td class="name">shape <span data-uix-tag data-kind="eidos">eidos</span></td><td
								class="type">ResponsiveProp&lt;'linear'|'circular'&gt;</td
							><td class="default">'linear'</td><td>Visual presentation: bar or gauge ring.</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>
			<p data-uix-section-desc>Source: <code>src/uix/morfo/components/meter.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">"{meterMorfo.name}"</td></tr>
						<tr><td class="name">kebab</td><td class="type">"{meterMorfo.kebab}"</td></tr>
						<tr
							><td class="name">scope</td><td class="type"
								>[{meterMorfo.scope.map((s) => `"${s}"`).join(', ')}]</td
							></tr
						>
						<tr
							><td class="name">parts.length</td><td class="default">{meterMorfo.parts.length}</td
							></tr
						>
						<tr><td class="name">events.length</td><td class="default">0</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>States</th><th
								>Optional</th
							></tr
						></thead
					>
					<tbody>
						{#each partsList as part}
							<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.states.length ? part.states.join(' | ') : '—'}</td>
								<td class="default">{part.optional ? 'yes' : 'no'}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>

			{#each meterMorfo.parts as rawPart}
				{@const partAny = rawPart as unknown as {
					kebab: string;
					aria?: ReadonlyArray<{
						attr: string;
						value: { kind: string };
						condition?: { when: string; prop?: string };
						severity?: string;
					}>;
				}}
				{@const dataAttrs = compiled.contracts.dataAttrsByPart.get(partAny.kebab) ?? []}
				{@const ariaAttrs = partAny.aria ?? []}
				{#if dataAttrs.length || ariaAttrs.length}
					<div data-uix-subsection-head>{partAny.kebab}</div>
					{#if dataAttrs.length}
						<div data-uix-table-wrap>
							<table data-uix-table>
								<thead><tr><th>data-attr</th><th>Values</th><th>Source</th></tr></thead>
								<tbody>
									{#each dataAttrs as attr}
										<tr
											><td class="name">{attr.attr}</td><td class="type"
												>{attr.values ? attr.values.join(' | ') : '—'}</td
											><td class="default"
												>{'value' in attr && attr.value
													? (attr as { value: { kind: string } }).value.kind
													: '—'}</td
											></tr
										>
									{/each}
								</tbody>
							</table>
						</div>
					{/if}
					{#if ariaAttrs.length}
						<div data-uix-table-wrap style="margin-top: var(--uix-space-2);">
							<table data-uix-table>
								<thead
									><tr><th>aria-attr</th><th>Source</th><th>Condition</th><th>Severity</th></tr
									></thead
								>
								<tbody>
									{#each ariaAttrs as a}
										<tr
											><td class="name">{a.attr}</td><td class="type">{a.value.kind}</td><td
												class="default"
												>{a.condition
													? `when ${a.condition.when}${a.condition.prop ? ` (${a.condition.prop})` : ''}`
													: 'always'}</td
											><td class="default">{a.severity ?? 'required'}</td></tr
										>
									{/each}
								</tbody>
							</table>
						</div>
					{/if}
				{/if}
			{/each}
		</section>
	{/if}

	{#if tab === 'sema'}
		<section data-uix-section>
			<h2 data-uix-section-title>
				<span data-uix-layer-badge="sema">sema</span> · events
			</h2>
			<p data-uix-section-desc>
				This morfo declares no semantic events. If the component grows user-triggered perceptual
				feedback, the event must be declared in Morfo first and surfaced here.
			</p>
			<div data-uix-empty-state>No Sema events declared.</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/meter/meter.css</code>. The fill reads Soma's
				<code>--_meter-value-pct</code> and zone attrs.
			</p>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Selector</th><th>Source</th></tr></thead>
					<tbody>
						<tr
							><td class="name">[data-meter][data-state]</td><td
								><span data-uix-tag data-kind="soma">morfo</span></td
							></tr
						>
						<tr
							><td class="name">[data-meter][data-size]</td><td
								><span data-uix-tag data-kind="eidos">eidos</span></td
							></tr
						>
						<tr
							><td class="name">[data-meter][data-shape]</td><td
								><span data-uix-tag data-kind="eidos">eidos</span></td
							></tr
						>
						<tr
							><td class="name">[data-meter-indicator][data-state]</td><td
								><span data-uix-tag data-kind="soma">morfo</span></td
							></tr
						>
						<tr
							><td class="name">--_meter-value-pct / low / high / optimum</td><td
								><span data-uix-tag data-kind="soma">runtime CSS vars</span></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>
				Meter represents a static known-range value. It is not for task completion; use Progress for
				ongoing work.
			</p>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Attribute</th><th>Value</th></tr></thead>
					<tbody>
						<tr><td>role</td><td class="type">meter</td></tr>
						<tr><td>aria-valuemin / aria-valuemax</td><td class="type">min / max</td></tr>
						<tr><td>aria-valuenow</td><td class="type">value</td></tr>
						<tr><td>aria-valuetext</td><td class="type">valueText when supplied</td></tr>
						<tr><td>aria-label / aria-labelledby</td><td class="type">accessible name</td></tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}
</div>