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

<script lang="ts">
	import {
		Spinner,
		type SpinnerSize,
		type SpinnerColor,
		type SpinnerVariant
	} from '$uix/eidos/components/spinner';
	import { Box } from '$uix/eidos/components/box';
	import { Stack } from '$uix/eidos/components/stack';
	import { compileMorfo } from '$uix/morfo';
	import { spinnerMorfo } from '@/uix/morfo/components/spinner';
	import { getActiveUix } from '$active-uix';

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

	const uix = getActiveUix();

	let tab = $state<Tab>('live');
	let trace = $state<TraceEntry[]>([]);
	let stageRef = $state<HTMLElement | null>(null);

	let variant = $state<SpinnerVariant>('ring');
	let size = $state<SpinnerSize>('md');
	let color = $state<SpinnerColor>('primary');
	let withLabel = $state(false);

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

	const variants: SpinnerVariant[] = ['ring', 'dots', 'bars'];
	const sizes: SpinnerSize[] = ['xs', 'sm', 'md', 'lg', 'xl'];
	const colors: SpinnerColor[] = [
		'primary',
		'secondary',
		'neutral',
		'affirm',
		'fulfill',
		'risk',
		'threat',
		'loss'
	];

	$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();
	});

	// ── Code snippet ──────────────────────────────────────────────────────
	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { Spinner } from '$uix/eidos/components/spinner';",
			'</' + 'script>',
			'',
			withLabel ? '<Spinner' : '<Spinner',
			variant !== 'ring' && `  variant="${variant}"`,
			size !== 'md' && `  size="${size}"`,
			color !== 'primary' && `  color="${color}"`,
			withLabel ? '>' : '/>',
			withLabel && '  Loading…',
			withLabel && '</Spinner>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Feedback · Spinner</div>
		<h1 data-uix-page-title>Spinner</h1>
		<p data-uix-page-lede>
			Indeterminate progress indicator. Three visual variants
			(<code>ring</code>, <code>dots</code>, <code>bars</code>), five sizes, eight color accents,
			and an optional inline label. Eidos-native: no semantic events, no soma split — the morfo
			declares two parts (Provider + decorative Track). Use
			<a href="/uix/components/progress">&lt;Progress&gt;</a> instead when you have a known
			percentage.
		</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>0
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>variants</span>{variants.length}
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>sizes</span>{sizes.length}
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>scope</span>eidos
			</span>
		</div>
	</header>

	<!-- Live preview always rendered (between header and tabs). -->
	<div data-uix-stage>
		<div data-uix-stage-area bind:this={stageRef}>
			<Box
				style="padding: var(--uix-space-6); display: flex; align-items: center; justify-content: center; inline-size: 100%;"
			>
				{#if withLabel}
					<Spinner {variant} {size} {color}>Loading…</Spinner>
				{:else}
					<Spinner {variant} {size} {color} />
				{/if}
			</Box>
		</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>variant</span>
			<span>{variant}</span>
			<span style="margin-inline-start: auto;">
				<span data-uix-stage-trace-key>size</span>
				{size} · <span data-uix-stage-trace-key>color</span> {color}
			</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>5</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 · 0e</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>
				Spinner is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
				<code>variant</code> prop swaps the inner Track DOM (one arc vs three dots vs four bars);
				<code>size</code> drives a single <code>--_spinner-size</code> token that all three
				geometries share.
			</p>

			<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>variant</span>
					<span data-uix-chips role="radiogroup">
						{#each variants as v (v)}
							<button data-uix-chip data-active={variant === v} onclick={() => (variant = v)}
								>{v}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>size</span>
					<span data-uix-chips role="radiogroup">
						{#each sizes as s (s)}
							<button data-uix-chip data-active={size === s} onclick={() => (size = s)}>{s}</button>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>color</span>
					<span data-uix-chips role="radiogroup">
						{#each colors as c (c)}
							<button data-uix-chip data-active={color === c} onclick={() => (color = c)}>{c}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>with label</span>
					<span data-uix-switch>
						<input type="checkbox" bind:checked={withLabel} />
						<span data-uix-switch-label>{withLabel ? 'on' : 'off'}</span>
					</span>
				</label>
			</div>

			<!-- ── Code snippet (eidos-native — no soma layer) ──────────────── -->
			<div data-uix-code>
				<div data-uix-code-head>
					<span data-uix-layer-badge="eidos">eidos</span>
					<span>visual · variant swaps Track DOM</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>
				Spinner exposes variant / size / color and an optional inline label snippet. Inherits
				the full Box prop surface (gap, gridColumn, …) so it composes inline next to text.
			</p>

			<div data-uix-subsection-head>Spinner-specific props</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
					<tbody>
						<tr>
							<td class="name">variant</td>
							<td class="type">'ring' | 'dots' | 'bars'</td>
							<td>
								<code>ring</code> (default) — rotating arc, lightest. <code>dots</code> —
								three bouncing dots, medium weight. <code>bars</code> — four stretching bars,
								most attention.
							</td>
						</tr>
						<tr>
							<td class="name">size</td>
							<td class="type">'xs' | 'sm' | 'md' | 'lg' | 'xl'</td>
							<td>Track diameter / dot size / bar height. Default <code>md</code>.</td>
						</tr>
						<tr>
							<td class="name">color</td>
							<td class="type">ColorRole</td>
							<td>Accent palette. Default <code>primary</code>.</td>
						</tr>
						<tr>
							<td class="name">aria-label</td>
							<td class="type">string?</td>
							<td>Override the translated 'Loading' default — use to give context.</td>
						</tr>
						<tr>
							<td class="name">children</td>
							<td class="type">Snippet?</td>
							<td>Optional inline label rendered next to the spinner.</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>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
					<tbody>
						<tr>
							<td class="name">chakra-ui</td>
							<td><code>&lt;Spinner&gt;</code></td>
							<td>Chakra has one variant (ring). UIX adds <code>dots</code> + <code>bars</code> for higher-weight contexts.</td>
						</tr>
						<tr>
							<td class="name">mantine</td>
							<td><code>&lt;Loader&gt;</code></td>
							<td>Mantine's Loader exposes three variants by the same names. UIX keeps the API but uses <code>role="status"</code> over Mantine's plain div.</td>
						</tr>
						<tr>
							<td class="name">radix-themes</td>
							<td><code>&lt;Spinner&gt;</code></td>
							<td>Radix only ships the ring. UIX matches the API surface, adds variants + the inline-label snippet.</td>
						</tr>
						<tr>
							<td class="name">react-aria</td>
							<td><code>&lt;ProgressBar isIndeterminate&gt;</code></td>
							<td>React Aria reuses ProgressBar in indeterminate mode. UIX separates concerns — <code>&lt;Progress&gt;</code> for determinate, <code>&lt;Spinner&gt;</code> for indeterminate.</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>Field</th><th>Value</th></tr></thead>
					<tbody>
						<tr><td class="name">name</td><td>{spinnerMorfo.name}</td></tr>
						<tr><td class="name">kebab</td><td><code>{spinnerMorfo.kebab}</code></td></tr>
						<tr><td class="name">scope</td><td>{spinnerMorfo.scope.join(', ')}</td></tr>
						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
						<tr><td class="name">events</td><td>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>kebab</th>
							<th>marker</th>
							<th>element</th>
							<th>archetype</th>
							<th>role</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.archetype ?? '—'}</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>Provider · aria</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>attr</th><th>value</th><th>severity</th></tr></thead>
					<tbody>
						<tr>
							<td class="name"><code>role</code></td>
							<td>status</td>
							<td class="type">part default</td>
						</tr>
						<tr>
							<td class="name"><code>aria-label</code></td>
							<td>translationRef('components.spinner.label')</td>
							<td class="type">recommended</td>
						</tr>
						<tr>
							<td class="name"><code>aria-live</code></td>
							<td>"polite"</td>
							<td class="type">literal</td>
						</tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Track · aria</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>attr</th><th>value</th><th>severity</th></tr></thead>
					<tbody>
						<tr>
							<td class="name"><code>aria-hidden</code></td>
							<td>"true"</td>
							<td class="type">literal</td>
						</tr>
					</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>
			<p data-uix-section-desc>
				Spinner declares <strong>no semantic events</strong>. The loading state announces only
				through ARIA — there is no commit/emerge/shift to react to. Mount the spinner when work
				starts; unmount when it ends.
			</p>
			<p data-uix-section-desc>
				If you need a perceptual cue when the work starts or finishes, attach it to the parent
				action (the form submission that triggered the fetch, the route navigation that opened
				the page) — not to Spinner.
			</p>
		</section>
	{/if}

	{#if tab === 'recipe'}
		<section data-uix-section>
			<h2 data-uix-section-title>Eidos recipe</h2>
			<p data-uix-section-desc>
				Recipe lives in <code>src/uix/eidos/components/spinner/spinner.css</code>. All three
				variants share private tokens (<code>--_spinner-size</code>,
				<code>--_spinner-color</code>, <code>--_spinner-track</code>); each variant adds its own
				keyframes block.
			</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-spinner]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Provider marker. Inline-flex container with label gap.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner][data-size='xs'..'xl']</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Sets <code>--_spinner-size</code> + <code>--_spinner-thickness</code>.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner][data-color='primary'..'loss']</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Maps to color-mix accent + track tokens.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner-track]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Track part marker (aria-hidden decoration).</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner][data-variant='ring'] [data-spinner-track]</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Rotating arc via border-top-color contrast + <code>spinner-rotate</code> keyframes.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner][data-variant='dots'] [data-spinner-dot]</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Three dots with staggered <code>spinner-bounce</code> delays.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-spinner][data-variant='bars'] [data-spinner-bar]</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Four bars with staggered <code>spinner-stretch</code> delays.</td>
						</tr>
						<tr>
							<td class="name"><code>@media (prefers-reduced-motion: reduce)</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Freezes all keyframes; ring loses the top-color contrast for low-distraction.</td>
						</tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>All variants × sizes</div>
			<Stack gap="var(--uix-space-4)">
				{#each variants as v (v)}
					<Box
						style="display: flex; gap: var(--uix-space-6); align-items: center; padding: var(--uix-space-3); border: 1px solid var(--uix-border); border-radius: var(--uix-radius-md);"
					>
						<code style="min-inline-size: 4rem;">{v}</code>
						{#each sizes as s (s)}
							<Spinner variant={v} size={s} {color} />
						{/each}
					</Box>
				{/each}
			</Stack>
		</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">Role</td>
							<td>
								<code>role="status"</code> on the Provider — a polite live region. Screen
								readers announce the label when the spinner enters the DOM.
							</td>
						</tr>
						<tr>
							<td class="name">Live region</td>
							<td>
								<code>aria-live="polite"</code> — announcements wait for the user to finish
								their current speech utterance before being read.
							</td>
						</tr>
						<tr>
							<td class="name">Label</td>
							<td>
								Defaults to the translated 'Loading' / 'Cargando'. Override with
								<code>aria-label="Loading orders"</code> for context.
							</td>
						</tr>
						<tr>
							<td class="name">Track decoration</td>
							<td>
								<code>data-spinner-track</code>, <code>-dot</code>, <code>-bar</code> all carry
								<code>aria-hidden="true"</code>. Only the Provider's label is announced.
							</td>
						</tr>
						<tr>
							<td class="name">Keyboard</td>
							<td>Spinner is not focusable. Tab order skips it entirely.</td>
						</tr>
						<tr>
							<td class="name">Focus visible</td>
							<td>Spinner does not paint a focus ring — no interactive state.</td>
						</tr>
						<tr>
							<td class="name">Reduced motion</td>
							<td>
								All three keyframes stop under
								<code>prefers-reduced-motion: reduce</code>. The visual stays so the user still
								sees the loading affordance.
							</td>
						</tr>
						<tr>
							<td class="name">When to use</td>
							<td>
								Spinner for unknown progress (network requests, async rendering). Switch to
								<a href="/uix/components/progress">&lt;Progress&gt;</a> when you can report a
								percentage.
							</td>
						</tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}
</div>