User wants Chakra-style behavior: the chip in the demo should drive
both the visible segments in the input AND the calendar view
(year-only grid, month-only grid, day calendar). The previous
'readonly segments' chip was a Bits-style input lock, not a picker
kind switch — wrong contract.
This commit lays the scaffolding for the Chakra model, in four
incremental landings (A → D). It's the FIRST landing.
What changes:
- DatePickerKind type ('date' | 'month' | 'year') exported from soma.
- DatePickerProvider opts gain a `kind` slot; the root .svelte
defaults to 'date' and threads it through readableActive.
- exports.ts surfaces the new type alongside DatePickerMode.
- The root <div data-date-picker> emits data-kind for downstream
CSS / picker parts to consume in subsequent commits.
- Test fixture extended with the new opt.
Demo (date-picker single):
- Chip control renamed from 'readonly segments' to 'kind' with values
date / month / year. A hint shows the current input format
(YYYY / MM/YYYY / MM/DD/YYYY).
- New `visibleDateParts` derived set drives a `filterByKind` helper
applied to the segment snippet, so the input renders the right
subset on first selection. Literals (separators) between dropped
parts are removed; leading/trailing literals are trimmed.
- Snippet code refs updated: closeButton && readonlySegments line
replaced with kind !== 'date' && ` kind="${kind}"`.
What this commit DOES NOT do (next commits):
- B: render the year-grid in the calendar popover when data-kind=year.
- C: render the month-grid when data-kind=month.
- D: propagate to date-range-picker + wire the soma date-field to
drop segments based on kind (currently the filter lives in the
demo snippet — works for single-picker but isn't a contract for
third-party consumers).
Verification: 0 type errors. Browser-confirmed: clicking 'year' chip
collapses the input to a single '2026' segment and stamps
data-kind='year' on the picker root. Calendar still shows day-grid
(that's commit B's scope). 67/67 component:audit PASS.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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