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

<script lang="ts">
	import { Grid, type GridProps } from '$uix/eidos/components/grid';
	import { Box } from '$uix/eidos/components/box';
	import { compileMorfo } from '$uix/morfo';
	import { gridMorfo } from '@/uix/morfo/components/grid';

	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);

	// ── Live state — Grid container props ────────────────────────────────
	let templateColumns = $state<string>('repeat(5, 1fr)');
	let autoFlow = $state<'row' | 'column' | 'dense' | 'row dense' | 'column dense'>('row');
	let align = $state<'stretch' | 'start' | 'center' | 'end' | 'baseline'>('stretch');
	let justify = $state<
		'start' | 'center' | 'end' | 'space-between' | 'space-around' | 'space-evenly' | 'stretch'
	>('start');
	let gap = $state<number>(3);
	let padding = $state<number>(4);
	// `autoRows` gives implicit rows a height. Without it, rows are sized by
	// content, so a row-spanning cell collapses to its own content height when
	// no sibling cell shares those rows (e.g. when colSpan covers every
	// column). A fixed row height makes rowSpan visible regardless of colSpan —
	// the same reason Chakra's example pins `templateRows`.
	let autoRows = $state<string>('4rem');

	// ── Live state — item placement on the featured cell (child Box) ──────
	// Grid item span lives on the child `<Box>`, not the container — the
	// UIX equivalent of Chakra's `<GridItem rowSpan colSpan>`. `span N`
	// maps to `grid-row` / `grid-column` on the Box.
	let rowSpan = $state<number>(2);
	let colSpan = $state<number>(2);

	// A cell can only span as many columns as the grid actually has, so the
	// colSpan ceiling tracks the live column count read off the rendered grid
	// (handles any `templateColumns` the user types — repeat(), lists, …).
	let columnCount = $state<number>(5);

	$effect(() => {
		templateColumns; // re-measure whenever the track list changes
		const grid = stageRef?.querySelector('[data-grid]');
		if (!grid) return;
		const cols = getComputedStyle(grid).gridTemplateColumns;
		const n = cols && cols !== 'none' ? cols.split(/\s+/).filter(Boolean).length : 1;
		columnCount = Math.max(1, n);
	});

	// Keep colSpan within the available columns when the grid shrinks.
	$effect(() => {
		if (colSpan > columnCount) colSpan = columnCount;
	});

	const featuredGridRow = $derived(rowSpan > 1 ? `span ${rowSpan}` : undefined);
	const featuredGridColumn = $derived(colSpan > 1 ? `span ${colSpan}` : undefined);

	const autoFlowOptions = ['row', 'column', 'dense', 'row dense', 'column dense'] as const;
	const alignOptions = ['stretch', 'start', 'center', 'end', 'baseline'] as const;
	const justifyOptions = [
		'start',
		'center',
		'end',
		'space-between',
		'space-around',
		'space-evenly',
		'stretch'
	] as const;

	// Live preview cells — index 0 is the featured (spanning) cell; the rest
	// cycle palettes so the grid reads as a real layout.
	const cellPalettes = ['primary', 'affirm', 'risk', 'fulfill', 'secondary'] as const;
	const cellCount = 10;

	const gridProps = $derived<Partial<GridProps>>({
		templateColumns: templateColumns || undefined,
		autoRows: autoRows || undefined,
		autoFlow,
		align,
		justify,
		gap,
		padding
	});

	// ── Compiled morfo ────────────────────────────────────────────────────
	const compiled = compileMorfo(gridMorfo);
	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();
	});

	// ── Code snippet ──────────────────────────────────────────────────────
	const eidosSnippet = $derived(
		[
			"<script lang='ts'>",
			"  import { Grid } from '$uix/eidos/components/grid';",
			"  import { Box } from '$uix/eidos/components/box';",
			'</' + 'script>',
			'',
			'<Grid',
			templateColumns !== 'repeat(5, 1fr)' && `  templateColumns="${templateColumns}"`,
			autoRows && `  autoRows="${autoRows}"`,
			autoFlow !== 'row' && `  autoFlow="${autoFlow}"`,
			align !== 'stretch' && `  align="${align}"`,
			justify !== 'start' && `  justify="${justify}"`,
			gap > 0 && `  gap={${gap}}`,
			padding > 0 && `  padding={${padding}}`,
			'>',
			`  <Box${featuredGridRow ? ` gridRow="${featuredGridRow}"` : ''}${featuredGridColumn ? ` gridColumn="${featuredGridColumn}"` : ''}>1</Box>`,
			'  <Box>2</Box>',
			'  …',
			'</Grid>'
		]
			.filter(Boolean)
			.join('\n')
	);
</script>

<div data-uix-canvas-inner>
	<header>
		<div data-uix-eyebrow>Layout · Grid</div>
		<h1 data-uix-page-title>Grid</h1>
		<p data-uix-page-lede>
			<code>display:grid</code> container. Owns track templates
			(<code>templateColumns</code>, <code>templateRows</code>,
			<code>autoColumns</code>, <code>autoRows</code>, <code>autoFlow</code>), container alignment
			(<code>align</code>, <code>justify</code>, <code>placeItems</code>,
			<code>placeContent</code>) and the row/column gap. <strong>Item placement</strong> props
			(<code>gridColumn</code>, <code>gridRow</code>, <code>gridArea</code>,
			<code>placeSelf</code>) live on the child <a href="/uix/components/box">&lt;Box&gt;</a>.
			For flex layouts use <a href="/uix/components/flex">&lt;Flex&gt;</a>.
		</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>extends</span>Box
			</span>
			<span data-uix-meta-pill>
				<span data-uix-meta-key>scope</span>eidos
			</span>
		</div>
	</header>

	<!-- Live preview always rendered -->
	<div data-uix-stage>
		<div data-uix-stage-area bind:this={stageRef}>
			<Grid
				{...gridProps}
				width="100%"
				style="border: 1px dashed var(--color-border-default); border-radius: var(--radius-md); min-block-size: 10rem;"
			>
				{#each Array.from({ length: cellCount }) as _, i}
					{@const palette = cellPalettes[i % cellPalettes.length]}
					<Box
						gridRow={i === 0 ? featuredGridRow : undefined}
						gridColumn={i === 0 ? featuredGridColumn : undefined}
						padding={2}
						style={`border: 1px solid var(--color-${palette}-border); border-radius: var(--radius-sm); background: var(--color-${palette}-track); color: var(--color-${palette}-text); text-align: center; display: grid; place-items: center;${i === 0 ? ' font-weight: 600;' : ''}`}
					>{i + 1}</Box>
				{/each}
			</Grid>
		</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>templateColumns</span>
			<span>{templateColumns}</span>
			<span style="margin-inline-start: auto;">
				<span data-uix-stage-trace-key>gap</span> {gap} ·
				<span data-uix-stage-trace-key>autoFlow</span> {autoFlow}
			</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>12+</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>
				Grid is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
				container props below map to <code>--grid-*</code> CSS variables. Grid also inherits
				every <a href="/uix/components/box">Box</a> prop (padding, margin, size, position) by
				composition. Item-side placement (<code>gridColumn</code>, <code>gridRow</code>,
				<code>gridArea</code>, <code>placeSelf</code>) is set on the child Box.
			</p>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="eidos">eidos</span> props · container behaviour
			</div>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>templateColumns <span data-uix-control-hint>repeat(5, 1fr) · try repeat(auto-fit, minmax(4rem, 1fr)) for reflow</span></span>
					<input
						type="text"
						placeholder="(none)"
						bind:value={templateColumns}
						style="inline-size: 14rem;"
					/>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>autoRows <span data-uix-control-hint>row height — makes rowSpan visible</span></span>
					<input
						type="text"
						placeholder="(auto — content height)"
						bind:value={autoRows}
						style="inline-size: 14rem;"
					/>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>autoFlow</span>
					<span data-uix-chips role="radiogroup">
						{#each autoFlowOptions as opt}
							<button data-uix-chip data-active={autoFlow === opt} onclick={() => (autoFlow = opt)}
								>{opt}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>align <span data-uix-control-hint>align-items</span></span>
					<span data-uix-chips role="radiogroup">
						{#each alignOptions as opt}
							<button data-uix-chip data-active={align === opt} onclick={() => (align = opt)}
								>{opt}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>justify <span data-uix-control-hint>justify-content</span></span>
					<span data-uix-chips role="radiogroup">
						{#each justifyOptions as opt}
							<button data-uix-chip data-active={justify === opt} onclick={() => (justify = opt)}
								>{opt}</button
							>
						{/each}
					</span>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>gap <span data-uix-control-hint>0–8 → var(--space-N)</span></span>
					<input type="number" min="0" max="8" step="1" bind:value={gap} style="inline-size: 6rem;" />
				</label>
				<label data-uix-control>
					<span data-uix-control-label>padding <span data-uix-control-hint>inherited from Box</span></span>
					<input
						type="number"
						min="0"
						max="8"
						step="1"
						bind:value={padding}
						style="inline-size: 6rem;"
					/>
				</label>
			</div>

			<div data-uix-subsection-head>
				<span data-uix-layer-badge="eidos">eidos</span> props · item placement · cell 1 (child Box)
			</div>
			<p data-uix-section-desc>
				Span lives on the <strong>child Box</strong>, not the Grid — the UIX equivalent of
				Chakra's <code>&lt;GridItem rowSpan colSpan&gt;</code>. Cell 1 maps to
				<code>gridRow="span {rowSpan}"</code> / <code>gridColumn="span {colSpan}"</code>.
				A cell can only span as many columns as the grid has, so <strong>colSpan</strong> is
				capped at the <code>templateColumns</code> count (currently <strong>{columnCount}</strong>) —
				raise <code>templateColumns</code> to span wider.
			</p>
			<div data-uix-controls>
				<label data-uix-control>
					<span data-uix-control-label>rowSpan <span data-uix-control-hint>gridRow → span N rows</span></span>
					<input
						type="number"
						min="1"
						max="4"
						step="1"
						bind:value={rowSpan}
						style="inline-size: 6rem;"
					/>
				</label>
				<label data-uix-control>
					<span data-uix-control-label>colSpan <span data-uix-control-hint>gridColumn → span N cols</span></span>
					<input
						type="number"
						min="1"
						max={columnCount}
						step="1"
						bind:value={colSpan}
						style="inline-size: 6rem;"
					/>
				</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 · container props mapped to --grid-* CSS variables</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>
				Grid adds container-side grid props on top of every <code>BoxProps</code> field. Track
				templates accept any CSS <code>grid-template-*</code> string. <strong>Item placement</strong>
				props (<code>gridColumn</code>, <code>gridRow</code>, <code>gridArea</code>,
				<code>placeSelf</code>) live on the child <a href="/uix/components/box"><code>&lt;Box&gt;</code></a>.
			</p>

			<div data-uix-subsection-head>Track templates</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
					<tbody>
						<tr><td class="name">templateColumns</td><td class="type">string</td><td class="default empty">—</td><td><code>grid-template-columns</code>. e.g. <code>"repeat(3, 1fr)"</code>.</td></tr>
						<tr><td class="name">templateRows</td><td class="type">string</td><td class="default empty">—</td><td><code>grid-template-rows</code>.</td></tr>
						<tr><td class="name">autoColumns</td><td class="type">string</td><td class="default">'auto'</td><td><code>grid-auto-columns</code>.</td></tr>
						<tr><td class="name">autoRows</td><td class="type">string</td><td class="default">'auto'</td><td><code>grid-auto-rows</code>.</td></tr>
						<tr><td class="name">autoFlow</td><td class="type">row | column | dense | row dense | column dense</td><td class="default">'row'</td><td><code>grid-auto-flow</code>.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Alignment</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
					<tbody>
						<tr><td class="name">align</td><td class="type">stretch | start | center | end | baseline | flex-start | flex-end</td><td class="default">'stretch'</td><td><code>align-items</code>.</td></tr>
						<tr><td class="name">justify</td><td class="type">start | center | end | stretch | space-between | space-around | space-evenly | flex-start | flex-end</td><td class="default">'start'</td><td><code>justify-content</code>.</td></tr>
						<tr><td class="name">placeItems</td><td class="type">string</td><td class="default empty">—</td><td>Shorthand for <code>align-items</code> + <code>justify-items</code>.</td></tr>
						<tr><td class="name">placeContent</td><td class="type">string</td><td class="default empty">—</td><td>Shorthand for <code>align-content</code> + <code>justify-content</code>.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Gap</div>
			<div data-uix-table-wrap>
				<table data-uix-table>
					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
					<tbody>
						<tr><td class="name">gap</td><td class="type">number | string</td><td class="default empty">—</td><td>Shorthand for both axes. Number → <code>var(--space-N)</code>.</td></tr>
						<tr><td class="name">rowGap</td><td class="type">number | string</td><td class="default empty">—</td><td>Per-axis override; takes precedence over <code>gap</code>.</td></tr>
						<tr><td class="name">columnGap</td><td class="type">number | string</td><td class="default empty">—</td><td>Per-axis override; takes precedence over <code>gap</code>.</td></tr>
					</tbody>
				</table>
			</div>

			<div data-uix-subsection-head>Inherited from Box</div>
			<p data-uix-section-desc>
				Every <a href="/uix/components/box">BoxProps</a> field is forwarded (except
				<code>display</code>, which Grid locks to <code>grid</code>):
				<code>padding*</code>, <code>margin*</code>, <code>width</code>, <code>height</code>,
				<code>position</code>, <code>top/right/bottom/left</code>, <code>overflow*</code>.
			</p>

			<div data-uix-subsection-head>Item placement (on child Box)</div>
			<p data-uix-section-desc>
				Item-side props are not on Grid. Set them on the child Box:
				<code>gridColumn</code>, <code>gridRow</code>, <code>gridArea</code>,
				<code>placeSelf</code>, <code>alignSelf</code>, <code>justifySelf</code>, <code>order</code>.
				See <a href="/uix/components/box">&lt;Box&gt;</a> → "Flex / grid item".
			</p>

			<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">radix-themes</td><td><code>&lt;Grid&gt;</code></td><td>Same shape: container props on Grid, item props on Box. Radix accepts <code>columns="3"</code> shorthand; UIX uses raw <code>templateColumns="repeat(3, 1fr)"</code>.</td></tr>
						<tr><td class="name">chakra-ui</td><td><code>&lt;Grid&gt;</code> / <code>&lt;GridItem&gt;</code></td><td>Chakra ships a separate <code>&lt;GridItem&gt;</code> for placement; UIX uses Box on the child instead — one primitive, less indirection.</td></tr>
						<tr><td class="name">mantine</td><td><code>&lt;SimpleGrid&gt;</code> / <code>&lt;Grid&gt;</code></td><td>Mantine splits into SimpleGrid (auto-fit responsive) and Grid (12-col span); UIX keeps a single Grid that accepts arbitrary CSS Grid templates.</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>{gridMorfo.name}</td></tr>
						<tr><td class="name">kebab</td><td><code>{gridMorfo.kebab}</code></td></tr>
						<tr><td class="name">scope</td><td>{gridMorfo.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>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.archetype}</td>
								<td class="default">{part.optional ? 'yes' : 'no'}</td>
							</tr>
						{/each}
					</tbody>
				</table>
			</div>

			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
				Grid composes through <code>&lt;Box&gt;</code>, so the rendered DOM is a single
				<code>div[data-box][data-grid]</code> shell. Recipe lives at
				<code>src/uix/eidos/components/grid/grid.css</code> and layers on top of the Box recipe.
			</p>
		</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>
				Grid declares no semantic events. As a passive layout primitive, it does not commit,
				emerge, or react to anything — it just arranges its children. Components that animate
				on appearance should compose Grid with an interactive primitive (popover, drawer,
				collapsible) that owns the relevant sema verbs.
			</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/grid/grid.css</code> and layers on top of
				the Box recipe. The provider element carries both <code>data-box</code> and
				<code>data-grid</code> markers because Grid renders through Box.
			</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-grid]</code></td>
							<td><span data-uix-tag data-kind="morfo">morfo</span></td>
							<td>Provider marker.</td>
						</tr>
						<tr>
							<td class="name"><code>[data-box][data-grid] {`{ grid-template-columns: var(--grid-template-columns, none); … }`}</code></td>
							<td><span data-uix-tag data-kind="eidos">eidos</span></td>
							<td>Layer container-side grid properties on the Box recipe.</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">Role</td><td>None implicit. Default element is <code>&lt;div&gt;</code> — semantically neutral. Wrap Grid in a landmark (<code>&lt;main&gt;</code>, <code>&lt;nav&gt;</code>, <code>&lt;section&gt;</code>) when content needs one.</td></tr>
						<tr><td class="name">Label</td><td>Not applicable — Grid has no content semantics. Labels belong to the interactive children.</td></tr>
						<tr><td class="name">Keyboard</td><td>Grid is not focusable. Tab order follows DOM order even when CSS Grid reflows visual order (e.g. <code>order</code>, <code>grid-area</code>, <code>autoFlow="dense"</code>). Verify visual order matches focus order for keyboard users.</td></tr>
						<tr><td class="name">Reduced motion</td><td>Grid does not animate. Layout shifts on resize follow CSS defaults.</td></tr>
					</tbody>
				</table>
			</div>
		</section>
	{/if}
</div>