3 new layout primitives close the air port set (15 / 15 done).
`npm run component:audit`: 91 / 91 PASS, all 3 new PASS with 0 errors.
**scroll-area** — eidos compound wrapper over the existing soma:
`<ScrollArea><ScrollArea.Viewport>{content}</ScrollArea.Viewport>
<ScrollArea.Scrollbar orientation="vertical"><ScrollArea.Thumb />
</ScrollArea.Scrollbar><ScrollArea.Corner /></ScrollArea>`. Mirrors
Radix Primitives / Bits UI shape. Demo 667 lines.
**separator** — visual primitive (`scope: ['eidos']`) with conditional
ARIA: `role="separator"` + `aria-orientation` when not decorative,
`aria-hidden="true"` when decorative. New morfo
`src/uix/morfo/components/separator.ts`. Demo 645 lines.
**splitter** — eidos compound over existing soma:
`<Splitter orientation="horizontal"><Splitter.Panel>{a}</Splitter.Panel>
<Splitter.ResizeTrigger /><Splitter.Panel>{b}</Splitter.Panel>
</Splitter>`. Demo 824 lines.
**Splitter sema rewire — match Slider's handle/drag/commit shape:**
The morfo previously declared only `commit-resize`. Direct-manipulation
primitives (Slider, Splitter) should share the same event vocabulary so
audio/haptic projections feel coherent across the family. Renamed +
expanded to mirror Slider:
- `handle-pick` (family: handle, verb: pick, sequence: coincident,
target: resize-trigger) — fires on pointerdown when user grabs the
trigger.
- `handle-drag` (family: handle, verb: drag, sequence: coincident,
target: resize-trigger) — fires on each pointermove frame.
- `commit-set` (family: commit, verb: set, intent: neutral,
sequence: post, target: provider) — fires on pointerup. The runtime
`commit-set` handler is wired to call the consumer's `onResizeEnd`
callback, so sema and JS callback land at the same moment (parity
with Slider's `onValueCommit`).
Soma provider triggers these via `this.runtime.trigger(name)` in
`onpointerdown` / `onpointermove` / `notifyResizeEnd` (the latter
unchanged externally — internally now routes through the runtime
trigger).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
dev