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

<script lang="ts">
	import { Slider, type SliderSize, type SliderType } from '$uix/eidos/components/slider';
	import { compileMorfo } from '$uix/morfo';
	import { sliderMorfo } from '@/uix/morfo/components/slider';
	import { getActiveUix } from '$active-uix';

	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
	type Orientation = 'horizontal' | 'vertical';
	type Direction = 'ltr' | 'rtl';
	type TraceEntry = { event: string; family: string; intent?: string; at: number };

	const uix = getActiveUix();

	let tab = $state<Tab>('live');
	let type = $state<SliderType>('single');
	let value = $state([40]);
	let min = $state(0);
	let max = $state(100);
	let step = $state(1);
	let orientation = $state<Orientation>('horizontal');
	let disabled = $state(false);
	let dir = $state<Direction>('ltr');
	let size = $state<SliderSize>('md');

	const compiled = compileMorfo(sliderMorfo);
	const partsList = $derived([...compiled.parts.byKebab.values()]);
	const events = $derived([...compiled.actions.byName.values()]);
	const tickValues = $derived([min, Math.round((min + max) / 2), max]);
	const valueText = $derived(value.join(' – '));
	const thumbLabels = $derived(type === 'multiple' ? ['Minimum', 'Maximum'] : ['Value']);
	let stageRef = $state<HTMLElement | null>(null);
	let trace = $state<TraceEntry[]>([]);

	$effect(() => {
		if (type === 'single' && value.length !== 1) value = [value[0] ?? min];
		if (type === 'multiple' && value.length < 2) value = [min + 20, max - 20];
	});

	$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();
	});

	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 = $derived(
		[
			"<script lang='ts'>",
			"  import * as Slider from '$soma/components/slider';",
			`  let value = $state([${value.join(', ')}]);`,
			'</' + 'script>',
			'',
			`<Slider.Provider bind:value min={${min}} max={${max}} aria-label="Volume">`,
			'  <Slider.Range />',
			'  <Slider.Thumb />',
			'  <Slider.Tick value={50} />',
			'</Slider.Provider>'
		]
			.filter(Boolean)
			.join('\n')
	);

	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { Slider } from '$uix/eidos/components/slider';",
			`  let value = $state([${value.join(', ')}]);`,
			'</' + 'script>',
			'',
			`<Slider bind:value min={${min}} max={${max}} size="${size}" aria-label="Volume">`,
			'  <Slider.Range />',
			'  <Slider.Thumb />',
			'  <Slider.Tick value={50} />',
			'</Slider>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Controls · Slider</div>
		<h1 data-uix-page-title>Slider</h1>
		<p data-uix-page-lede>
			Slider primitive for single or multiple thumbs. Soma owns pointer, keyboard, value and ARIA;
			Eidos adds visual size.
		</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>keyboard</span>8</span>
			<span data-uix-meta-pill><span data-uix-meta-key>sizes</span>3</span>
		</div>
	</header>

	<div data-uix-stage bind:this={stageRef}>
		<div data-uix-stage-area>
			<div style="inline-size: min(30rem, 100%);">
				<Slider
					bind:value
					{type}
					{min}
					{max}
					{step}
					{orientation}
					{disabled}
					{dir}
					{thumbLabels}
					{size}
					aria-label="Volume"
				>
					<Slider.Range />
					<Slider.Thumb index={0} />
					{#if type === 'multiple'}
						<Slider.Thumb index={1} />
					{/if}
					{#each tickValues as tick}
						<Slider.Tick value={tick} />
					{/each}
				</Slider>
			</div>
		</div>
		<div data-uix-stage-trace>
			<span data-uix-stage-trace-key>trace</span>
			{#if trace.length === 0}
				<span>drag or commit a value to see sema events</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>
				{valueText} · {type} · {size}
			</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>11</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>
				<span data-uix-layer-badge="soma">soma</span> owns range interaction.
				<span data-uix-layer-badge="eidos">eidos</span> owns size.
			</p>
			<div data-uix-subsection-head>
				<span data-uix-layer-badge="soma">soma</span> props · range model
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label
						>first value <span data-uix-control-hint>{value[0]}</span></span
					>
					<input
						type="range"
						{min}
						{max}
						{step}
						value={value[0] ?? min}
						oninput={(event) =>
							(value = [
								Number(event.currentTarget.value),
								...(type === 'multiple' ? [value[1] ?? max] : [])
							])}
					/>
				</label>
				{#if type === 'multiple'}
					<label data-uix-control>
						<span data-uix-control-label
							>second value <span data-uix-control-hint>{value[1]}</span></span
						>
						<input
							type="range"
							{min}
							{max}
							{step}
							value={value[1] ?? max}
							oninput={(event) => (value = [value[0] ?? min, Number(event.currentTarget.value)])}
						/>
					</label>
				{/if}
				<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>step</span><input
						type="number"
						min="1"
						bind:value={step}
					/></label
				>
				<label data-uix-control>
					<span data-uix-control-label>type</span>
					<span data-uix-chips role="radiogroup">
						{#each ['single', 'multiple'] as t}
							<button
								data-uix-chip
								data-active={type === t}
								onclick={() => (type = t as SliderType)}>{t}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>orientation</span>
					<span data-uix-chips role="radiogroup">
						{#each ['horizontal', 'vertical'] as o}
							<button
								data-uix-chip
								data-active={orientation === o}
								onclick={() => (orientation = o as Orientation)}>{o}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>disabled</span>
					<span data-uix-switch
						><input type="checkbox" bind:checked={disabled} /><span data-uix-switch-label
							>{disabled ? 'on' : 'off'}</span
						></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 ['xs', 'sm', 'md', 'lg', 'xl'] as s}
							<button
								data-uix-chip
								data-active={size === s}
								onclick={() => (size = s as SliderSize)}>{s}</button
							>
						{/each}
					</span>
				</label>
			</div>

			<div data-uix-code>
				<div data-uix-code-head>
					<span data-uix-layer-badge="soma">soma</span>
					<span>headless · slider model</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</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 surface</h2>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Owner</th><th>Default</th><th>Notes</th></tr></thead>
					<tbody>
						<tr
							><td class="name">type</td><td>soma</td><td class="default">single</td><td
								>single | multiple</td
							></tr
						>
						<tr
							><td class="name">value</td><td>soma</td><td class="default">[0]</td><td
								>Bindable numeric array</td
							></tr
						>
						<tr
							><td class="name">min / max / step</td><td>soma</td><td class="default"
								>0 / 100 / 1</td
							><td>Range math</td></tr
						>
						<tr
							><td class="name">orientation / dir</td><td>soma</td><td class="default"
								>horizontal / ltr</td
							><td>Layout and keyboard direction</td></tr
						>
						<tr
							><td class="name">thumbLabels</td><td>soma</td><td class="default">—</td><td
								>Per-thumb accessible labels</td
							></tr
						>
						<tr
							><td class="name">size</td><td>eidos</td><td class="default">md</td><td
								>sm | md | lg</td
							></tr
						>
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'morfo'}
		<section data-uix-section>
			<h2 data-uix-section-title>Morfo 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>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.optional ? 'yes' : 'no'}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>
			<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>
						{#each sliderMorfo.parts[2].keyboard ?? [] as key}
							<tr><td class="name">{key.key}</td><td>{key.action}</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 + perceptual signature
			</h2>
			<p data-uix-section-desc>
				Slider separates continuous drag feedback from the final value commit:
				<code>handle-drag</code> is coincident, <code>commit-set</code> is post-commit.
			</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>Target</th><th>Play</th
							></tr
						></thead
					>
					<tbody>
						{#each events as action}
							<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>{action.target}</td>
								<td>
									<button
										data-uix-play
										onclick={() => {
											const target = stageRef?.querySelector('[data-slider]') as HTMLElement | null;
											if (!target) return;
											void uix.events?.emit({
												name: action.name,
												family: action.semantic.family,
												target
											});
										}}>▶ 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 live in <code>src/uix/eidos/components/slider/slider.css</code> and consume Soma
				range/thumb/tick attrs plus Eidos <code>data-size</code>.
			</p>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
					<tbody>
						<tr>
							<td class="name"><code>[data-slider]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Root range model and orientation state.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-slider][data-size]</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Visual scale for track, range and thumbs.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-slider-range]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Filled range segment derived from the current value.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-slider-thumb][data-state][data-dragging]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Interactive thumb state and drag feedback.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-slider-tick][data-active]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Optional tick state relative to the current value.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-slider][data-event]</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Transient perceptual event styling from Sema projection.</td>
						</tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}

	{#if tab === 'a11y'}
		<section data-uix-section>
			<h2 data-uix-section-title>Accessibility</h2>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
					<tbody>
						<tr
							><td class="name">Group</td><td>Root exposes a named <code>role="group"</code>.</td
							></tr
						>
						<tr><td class="name">Thumbs</td><td>Each thumb uses <code>role="slider"</code>.</td></tr
						>
						<tr><td class="name">Value</td><td>Thumbs expose min, max, now and orientation.</td></tr
						>
						<tr
							><td class="name">Keyboard</td><td
								>Arrows, PageUp/PageDown and Home/End are declared.</td
							></tr
						>
					</tbody>
				</table>
			</div>
		</section>
	{/if}
</div>