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486 lines
20 KiB
486 lines
20 KiB
<script lang="ts">
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import {
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DragDrop,
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type DragDropSize,
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type DragDropColor,
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type DropEvent
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} from '$uix/eidos/components/drag-drop';
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import { compileMorfo } from '$uix/morfo';
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import { dragDropMorfo } from '@/uix/morfo/components/drag-drop';
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import { getActiveUix } from '$active-uix';
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const uix = getActiveUix();
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type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
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let tab = $state<Tab>('live');
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type Item = { id: string; label: string };
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let columns = $state<Record<string, Item[]>>({
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todo: [
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{ id: 't1', label: 'Write specs' },
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{ id: 't2', label: 'Review PR #42' },
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{ id: 't3', label: 'Sync with design' }
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],
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doing: [{ id: 'd1', label: 'Ship TreeGrid' }],
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done: [
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{ id: 'x1', label: 'Refactor Table' },
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{ id: 'x2', label: 'Carousel autoplay' }
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]
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});
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let size = $state<DragDropSize>('md');
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let color = $state<DragDropColor>('primary');
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let announceEnabled = $state(true);
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let moveBuffer = $state(5);
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function handleDrop(e: DropEvent<{ from: string }>) {
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const fromColumn = e.data.from;
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const toColumn = e.target.dataset.column!;
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if (fromColumn === toColumn) return;
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const item = columns[fromColumn].find((i) => i.id === e.value);
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if (!item) return;
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columns = {
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...columns,
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[fromColumn]: columns[fromColumn].filter((i) => i.id !== e.value),
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[toColumn]: [...columns[toColumn], item]
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};
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}
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const COL_LABELS: Record<string, string> = {
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todo: 'Todo',
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doing: 'In progress',
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done: 'Done'
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};
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type TraceEntry = { event: string; family: string; intent?: string; at: number };
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let trace = $state<TraceEntry[]>([]);
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let stageRef = $state<HTMLElement | null>(null);
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$effect(() => {
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const el = stageRef;
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if (!el) return;
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const obs = new MutationObserver((mutations) => {
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for (const m of mutations) {
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if (m.attributeName !== 'data-event') continue;
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const target = m.target as Element;
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const ev = target.getAttribute('data-event');
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if (!ev) continue;
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trace = [
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{
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event: ev,
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family: target.getAttribute('data-event-family') ?? '—',
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intent: target.getAttribute('data-event-intent') ?? undefined,
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at: Date.now()
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},
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...trace
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].slice(0, 6);
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}
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});
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obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
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return () => obs.disconnect();
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});
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const compiled = compileMorfo(dragDropMorfo);
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const partsList = $derived([...compiled.parts.byKebab.values()]);
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const events = $derived([...compiled.actions.byName.values()]);
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function fmtTime(at: number): string {
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const d = new Date(at);
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return `${String(d.getSeconds()).padStart(2, '0')}.${String(d.getMilliseconds()).padStart(3, '0')}`;
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}
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const totalItems = $derived(
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Object.values(columns).reduce((sum, list) => sum + list.length, 0)
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);
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const eidosSnippet = $derived(
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[
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"<script lang='ts'>",
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" import { DragDrop } from '$uix/eidos/components/drag-drop';",
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'</' + 'script>',
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'',
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'<DragDrop',
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' onDrop={handleDrop}',
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!announceEnabled && ' announceEnabled={false}',
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size !== 'md' && ` size="${size}"`,
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color !== 'primary' && ` color="${color}"`,
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'>',
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' {#snippet children({ active })}',
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' <DragDrop.Droppable accept={(d) => d.kind === "task"}>',
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' {#snippet children({ over, accepting })}',
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' <div data-column="todo">…</div>',
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' {/snippet}',
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' </DragDrop.Droppable>',
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' <DragDrop.Draggable',
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' value="t1"',
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' data={{ kind: "task", from: "todo" }}',
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moveBuffer !== 5 && ` moveBuffer={${moveBuffer}}`,
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' >',
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' <div>Card</div>',
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' </DragDrop.Draggable>',
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' {#if active}',
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' <DragDrop.Preview>{active.label}</DragDrop.Preview>',
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' {/if}',
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' {/snippet}',
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'</DragDrop>'
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]
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.filter(Boolean)
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.join('\n')
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);
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</script>
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<div data-uix-canvas-inner>
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<header>
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<div data-uix-eyebrow>Utility · DragDrop</div>
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<h1 data-uix-page-title>DragDrop</h1>
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<p data-uix-page-lede>
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Pointer + keyboard drag and drop. Soma owns the gesture coordinator and
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ARIA announcements via the global <code>Announce</code> service. Eidos
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paints the visual states (<code>data-dragging</code> ghosts the source,
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<code>data-accepting</code> highlights compatible targets,
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<code>data-dragover</code> tints the hover target with the accent color).
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</p>
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<div data-uix-page-meta>
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<span data-uix-meta-pill>
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<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
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</span>
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<span data-uix-meta-pill>
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<span data-uix-meta-key>events</span>{events.length}
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</span>
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<span data-uix-meta-pill>
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<span data-uix-meta-key>sizes</span>5
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</span>
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<span data-uix-meta-pill>
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<span data-uix-meta-key>cards</span> {totalItems}
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</span>
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<span data-uix-meta-pill>
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<span data-uix-meta-key>columns</span> {Object.keys(columns).length}
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</span>
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</div>
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</header>
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<DragDrop
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{size}
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{color}
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{announceEnabled}
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onDrop={(e) => handleDrop(e as DropEvent<{ from: string }>)}
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>
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{#snippet children(snippetProps)}
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{@const { active } = snippetProps}
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<div data-uix-stage>
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<div data-uix-stage-area bind:this={stageRef} style="padding: var(--uix-space-3); display: flex; gap: var(--uix-space-3); flex-wrap: wrap; align-items: flex-start;">
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{#each Object.keys(columns) as colKey (colKey)}
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<DragDrop.Droppable
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textValue={COL_LABELS[colKey]}
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data-column={colKey}
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style="inline-size: 12rem; min-block-size: 14rem; padding: var(--uix-space-2); border: 1px dashed var(--color-border-default); border-radius: var(--radius-md); background: var(--color-surface-subtle); display: block;"
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>
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{#snippet children(_dropSnippet)}
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<div style="font-weight: var(--font-weight-semibold, 600); margin-block-end: 0.5rem;">
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{COL_LABELS[colKey]}
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<span style="color: var(--color-content-secondary); font-weight: normal; font-size: var(--font-size-xs);">· {columns[colKey].length}</span>
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</div>
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<div style="display: flex; flex-direction: column; gap: var(--uix-space-1);">
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{#each columns[colKey] as item (item.id)}
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<DragDrop.Draggable value={item.id} data={{ from: colKey }} textValue={item.label} {moveBuffer}>
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<div style="padding: var(--uix-space-2) var(--uix-space-3); border-radius: var(--radius-sm); background: var(--color-surface-default); border: 1px solid var(--color-border-default); font-size: var(--font-size-sm);">
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⋮⋮ {item.label}
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</div>
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</DragDrop.Draggable>
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{/each}
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</div>
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{/snippet}
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</DragDrop.Droppable>
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{/each}
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</div>
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<div data-uix-stage-trace>
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<span data-uix-stage-trace-key>trace</span>
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{#if active}
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<span><strong>{active.label}</strong> · from {(active.data as { from?: string }).from}</span>
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{:else if trace.length === 0}
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<span>drag cards across columns · keyboard: Tab → Space → arrows → Enter / Escape</span>
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{:else}
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{#each trace.slice(0, 3) as entry}
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<span><span data-uix-stage-trace-event>{entry.event}</span> · {entry.family}{entry.intent ? ' · ' + entry.intent : ''}</span>
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<span style="color: var(--uix-text-faint)">{fmtTime(entry.at)}</span>
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{/each}
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{/if}
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</div>
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</div>
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{#if active}
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<DragDrop.Preview>⋮⋮ {active.label}</DragDrop.Preview>
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{/if}
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{/snippet}
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</DragDrop>
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<div data-uix-tabs role="tablist">
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<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
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<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>API <span data-uix-tab-count>4</span></button>
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<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
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<span data-uix-layer-badge="morfo">morfo</span>
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<span data-uix-tab-count>{partsList.length}p · {events.length}e</span>
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</button>
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<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
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<span data-uix-layer-badge="sema">sema</span>
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<span data-uix-tab-count>{events.length}</span>
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</button>
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<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}>Recipe</button>
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<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
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</div>
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{#if tab === 'live'}
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<section data-uix-section>
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<h2 data-uix-section-title>Controls</h2>
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<p data-uix-section-desc>
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Soma coordinates the gesture (pointer + keyboard), filters drop targets by <code>accept</code>, and announces via the global Announce service. Eidos paints the visual states.
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</p>
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<div data-uix-subsection-head>
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<span data-uix-layer-badge="soma">soma</span> behaviour
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</div>
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<div data-uix-controls>
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<label data-uix-control>
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<span data-uix-control-label>moveBuffer</span>
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<span data-uix-chips role="radiogroup">
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{#each [0, 5, 12, 24] as n (n)}
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<button data-uix-chip data-active={moveBuffer === n} onclick={() => (moveBuffer = n)}>{n}px</button>
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{/each}
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</span>
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</label>
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<label data-uix-control>
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<span data-uix-control-label>announceEnabled</span>
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<span data-uix-switch>
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<input type="checkbox" bind:checked={announceEnabled} />
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<span data-uix-switch-label>{announceEnabled ? 'SR announcements on' : 'silent'}</span>
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</span>
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</label>
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</div>
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<div data-uix-subsection-head>
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<span data-uix-layer-badge="eidos">eidos</span> visual props
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</div>
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<div data-uix-controls>
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<label data-uix-control>
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<span data-uix-control-label>size</span>
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<span data-uix-chips role="radiogroup">
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{#each ['xs', 'sm', 'md', 'lg', 'xl'] as s (s)}
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<button data-uix-chip data-active={size === s} onclick={() => (size = s as DragDropSize)}>{s}</button>
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{/each}
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</span>
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</label>
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<label data-uix-control>
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<span data-uix-control-label>color</span>
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<span data-uix-chips role="radiogroup">
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{#each ['primary', 'secondary', 'neutral', 'affirm', 'fulfill', 'risk', 'threat', 'loss'] as c (c)}
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<button data-uix-chip data-active={color === c} onclick={() => (color = c as DragDropColor)}>{c}</button>
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{/each}
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</span>
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</label>
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</div>
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<div data-uix-code>
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<div data-uix-code-head>
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<span data-uix-layer-badge="eidos">eidos</span>
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<span>visual · DragDrop + Draggable + Droppable + Preview</span>
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<span data-uix-code-lang>svelte</span>
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</div>
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<pre><code>{eidosSnippet}</code></pre>
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</div>
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</section>
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{/if}
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{#if tab === 'api'}
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<section data-uix-section>
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<h2 data-uix-section-title>API reference</h2>
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<p data-uix-section-desc>4 parts: <code>Provider · Draggable · Droppable · Preview</code>. The Provider does NOT own the data — consumer receives <code>onDrop</code> and mutates state.</p>
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<div data-uix-subsection-head>Provider (DragDrop)</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
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<tbody>
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<tr><td class="name">onDragStart · onDragEnd · onDrop</td><td class="type">callbacks</td><td class="default empty">—</td><td>Gesture lifecycle hooks.</td></tr>
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<tr><td class="name">announceEnabled</td><td class="type">boolean</td><td class="default">true</td><td>Emit SR announcements via the global Announce service.</td></tr>
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<tr><td class="name">size <span data-uix-tag data-kind="eidos">eidos</span></td><td class="type">'xs' | 'sm' | 'md' | 'lg' | 'xl'</td><td class="default">'md'</td><td>Cascaded visual size.</td></tr>
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<tr><td class="name">color <span data-uix-tag data-kind="eidos">eidos</span></td><td class="type">ColorRole</td><td class="default">'primary'</td><td>Accent for drop targets + preview border + shadow.</td></tr>
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</tbody>
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</table>
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</div>
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<div data-uix-subsection-head>Draggable</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
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<tbody>
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<tr><td class="name">value</td><td class="type">string</td><td class="default empty">required</td><td>Unique identifier returned in onDrop.</td></tr>
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<tr><td class="name">data</td><td class="type">DragData</td><td class="default">{'{}'}</td><td>Arbitrary payload received in onDrop.</td></tr>
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<tr><td class="name">disabled</td><td class="type">boolean</td><td class="default">false</td><td>Skip from drag gesture.</td></tr>
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<tr><td class="name">moveBuffer</td><td class="type">number</td><td class="default">5</td><td>Pixels the pointer must move before drag is recognised.</td></tr>
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<tr><td class="name">textValue</td><td class="type">string</td><td class="default empty">aria-label/textContent</td><td>Label for SR announcements.</td></tr>
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</tbody>
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</table>
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</div>
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<div data-uix-subsection-head>Droppable</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Description</th></tr></thead>
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<tbody>
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<tr><td class="name">accept</td><td class="type">(data, value) => boolean</td><td class="default">() => true</td><td>Filter — return false to skip this target.</td></tr>
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<tr><td class="name">disabled</td><td class="type">boolean</td><td class="default">false</td><td>Disable drops.</td></tr>
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<tr><td class="name">textValue</td><td class="type">string</td><td class="default empty">—</td><td>Label for SR announcements.</td></tr>
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</tbody>
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</table>
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</div>
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<div data-uix-subsection-head>Snippet props</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>Snippet</th><th>Key</th><th>Type</th><th>Description</th></tr></thead>
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<tbody>
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<tr><td class="name">Provider.children</td><td>active</td><td class="type">ActiveDrag | null</td><td>Info about the in-flight drag (value, data, label, pointer).</td></tr>
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<tr><td class="name">Provider.children</td><td>cancel</td><td class="type">() => void</td><td>Imperative cancel.</td></tr>
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<tr><td class="name">Draggable.children</td><td>dragging</td><td class="type">boolean</td><td>True while THIS draggable is the source.</td></tr>
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<tr><td class="name">Draggable.children</td><td>handleProps</td><td class="type">object</td><td>Spread on a child to restrict the drag handle.</td></tr>
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<tr><td class="name">Droppable.children</td><td>over</td><td class="type">boolean</td><td>Pointer/focus is over THIS target.</td></tr>
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<tr><td class="name">Droppable.children</td><td>accepting</td><td class="type">boolean</td><td>True for compatible targets while ANY drag is active.</td></tr>
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</tbody>
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</table>
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</div>
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</section>
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{/if}
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{#if tab === 'morfo'}
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<section data-uix-section>
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<h2 data-uix-section-title>
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<span data-uix-layer-badge="morfo">morfo</span>
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· declarative contract
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</h2>
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<p data-uix-section-desc>Source: <code>src/uix/morfo/components/drag-drop.ts</code>.</p>
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<div data-uix-subsection-head>Parts</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>Part</th><th>Marker</th><th>Element</th><th>Role</th><th>States</th><th>Optional</th></tr></thead>
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<tbody>
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{#each partsList as part (part.kebab)}
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<tr>
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<td class="name">{part.kebab}</td>
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<td><code data-uix-part-marker>[{part.marker}]</code></td>
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<td class="type"><{part.defaultElement}></td>
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<td class="type">{part.role ?? '—'}</td>
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<td class="default">{part.states.length ? part.states.join(' | ') : '—'}</td>
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<td class="default">{part.optional ? 'yes' : 'no'}</td>
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</tr>
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{/each}
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</tbody>
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</table>
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</div>
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<div data-uix-subsection-head>Events declaration</div>
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<div data-uix-table-wrap>
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<table data-uix-table>
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<thead><tr><th>name</th><th>family</th><th>verb</th><th>sequence</th><th>intent</th><th>target</th></tr></thead>
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<tbody>
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{#each events as action (action.name)}
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{@const sem = action.semantic}
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{@const intentDecl = 'intent' in sem ? sem.intent : undefined}
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{@const intentStr = typeof intentDecl === 'string' ? intentDecl : intentDecl ? `fromProp:${(intentDecl as { fromProp?: string }).fromProp ?? '?'}` : '—'}
|
|
<tr>
|
|
<td class="name">{action.name}</td>
|
|
<td class="type">{sem.family}</td>
|
|
<td>{sem.verb ?? '—'}</td>
|
|
<td>{sem.sequence ?? 'pre'}</td>
|
|
<td class="default">{intentStr}</td>
|
|
<td>{action.target}</td>
|
|
</tr>
|
|
{/each}
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</section>
|
|
{/if}
|
|
|
|
{#if tab === 'sema'}
|
|
<section data-uix-section id="sema">
|
|
<h2 data-uix-section-title>
|
|
<span data-uix-layer-badge="sema">sema</span>
|
|
· events
|
|
</h2>
|
|
{#if events.length === 0}
|
|
<p data-uix-section-desc>DragDrop's SR feedback is delivered via the global Announce service rather than sema events — the perception is verbal, not audio cues.</p>
|
|
{:else}
|
|
<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></tr></thead>
|
|
<tbody>
|
|
{#each events as action (action.name)}
|
|
{@const intentDecl = 'intent' in action.semantic ? action.semantic.intent : undefined}
|
|
<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 : '—'}</td>
|
|
</tr>
|
|
{/each}
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
{/if}
|
|
</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/drag-drop/drag-drop.css</code>.</p>
|
|
<div data-uix-table-wrap>
|
|
<table data-uix-table>
|
|
<thead><tr><th>Selector</th><th>Source</th><th>What it paints</th></tr></thead>
|
|
<tbody>
|
|
<tr><td class="name">[data-drag-drop-draggable]</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td><code>cursor: grab</code>, <code>touch-action: none</code>.</td></tr>
|
|
<tr><td class="name">[data-drag-drop-draggable][data-dragging]</td><td><span data-uix-tag data-kind="soma">morfo</span></td><td>Source ghosted (<code>opacity: 0.4</code>).</td></tr>
|
|
<tr><td class="name">[data-drag-drop-droppable][data-accepting]</td><td><span data-uix-tag data-kind="soma">morfo</span></td><td>Compatible target outline (soft accent).</td></tr>
|
|
<tr><td class="name">[data-drag-drop-droppable][data-dragover]</td><td><span data-uix-tag data-kind="soma">morfo</span></td><td>Hover target accent fill + inset border.</td></tr>
|
|
<tr><td class="name">[data-drag-drop-preview]</td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Floating pointer follower — card chrome with accent border + shadow.</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>
|
|
Full keyboard parity with pointer — and SR announcements via the global
|
|
<code>Announce</code> service when <code>announceEnabled</code> is on.
|
|
</p>
|
|
|
|
<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>Tab</span></td><td>Focus the next Draggable.</td></tr>
|
|
<tr><td><span data-uix-kbd>Space</span></td><td>Lift the focused Draggable.</td></tr>
|
|
<tr><td><span data-uix-kbd>Arrow</span> / <span data-uix-kbd>Tab</span></td><td>Navigate compatible Droppables.</td></tr>
|
|
<tr><td><span data-uix-kbd>Enter</span></td><td>Drop on the current target.</td></tr>
|
|
<tr><td><span data-uix-kbd>Escape</span></td><td>Cancel the lift.</td></tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
|
|
<div data-uix-subsection-head>Announcements (via global Announce)</div>
|
|
<ul style="margin: 0; padding-inline-start: 1.25rem; color: var(--color-content-secondary); font-size: var(--font-size-sm);">
|
|
<li>Drag start → "Started dragging {`{item}`}"</li>
|
|
<li>Drag over Droppable → "Over {`{target}`}"</li>
|
|
<li>Drop → "Dropped {`{item}`} on {`{target}`}"</li>
|
|
<li>Cancel → "Cancelled"</li>
|
|
</ul>
|
|
</section>
|
|
{/if}
|
|
</div>
|