New value-type-agnostic Picker — the shared transactional core that will
later replace the five system pickers' duplicated coordinators (date /
color / time / range), parameterised by TValue.
- morfo/components/picker.ts — provider part only; open/close delegated to
the composed Popover (no dialog semantics, no events).
- soma/components/picker — PickerProvider<TValue> + root wrapper (composes
Popover). Exposes workingValue (draft-or-bound), commit/cancel/clear and a
PickerShellHandle for the shared footer.
- web/routes/uix/components/picker — interactive deferValue testbed.
Unified transaction (the deferValue axis):
- deferValue=false: workingValue IS the bound value (live); cancel() reverts
to the open-edge snapshot.
- deferValue=true: workingValue routes to an internal draft; the bound value
only updates on commit() (Accept); any close that is not an explicit accept
discards. The form / onValueChange only ever see accepted values.
Verified: npm run check 0 new errors. Browser — deferred edit/accept/cancel/
dismiss-discard + live edit + live cancel-revert all correct, no console errors.
Not committed (shared files carry a parallel session's WIP): the soma/components
barrel export + the docs sidebar entry. Demo imports the picker via subpath so
the commit is self-contained.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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