Separate AM/PM picker column (#69)#86
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When use12HourPicker is enabled, separateAmPmPicker renders AM/PM as a dedicated scrollable column after seconds instead of appending it to each hour. The hours column shows 12, 1, 2, …, 11 in clock order. Public API (onDurationChange, latestDuration, setValue) keeps using 0–23 hours. hourLimit is honoured in this mode: the hour column's rows grey based on the currently selected AM/PM, and momentum-scroll snaps to the nearest valid hour in that half. The AM/PM column is intentionally limit-free so users can always toggle halves to reach any valid hour. Wraparound limits (max < min) are handled the same as in the existing 12-hour mode. The TimerPickerModal width calculation now counts the AM/PM column when present, so default styles work without manual pickerColumnWidth tweaks. maximumHours remains ignored in separate mode (warns at runtime).
…y refs
- DurationScroll gains `getValidValue` + `isItemDisabled` callback props.
TimerPicker injects cross-column context (current AM/PM, hourLimit,
hourInterval) through these instead of plumbing combinedHourLimit /
currentAmPm through DurationScroll → PickerItem.
- One snap path: DurationScroll's onMomentumScrollEnd calls the validate
callback, no more reentrant setValue from TimerPicker.
- findNearestValidCycleIdx now takes interval and iterates 0..11 step
interval, so hourInterval > 1 no longer snaps to a non-rendered cycleIdx.
Adds parameterised interval coverage to the test suite.
- Drop dead selectedAmPmRef + sync useEffect.
- Replace the synthetic `RefObject<number>` cast on latestDuration.hours
with a proper `LatestDurationRef = { readonly current: number }` type
used by both TimerPickerRef and TimerPickerModalRef.
- Add "amPm" to PickerColumn so pickerColumnWidth.amPm works and the modal
width math routes through the existing resolveColumnWidth helper.
cycleIdx was internal jargon. hourSlot reads naturally as 'a slot in the
12-hour clock-face column' where slot 0 is the 12 (noon/midnight) position.
splitHour24 returns { amPm, hourSlot }; findNearestValidHourSlot replaces
findNearestValidCycleIdx; getValidHourSlot/isHourSlotDisabled in TimerPicker.
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Closes #69.
Summary
separateAmPmPickerprop onTimerPicker/TimerPickerModal. When combined withuse12HourPicker, AM/PM renders as a dedicated scrollable column after seconds and the hour column shows12, 1, 2, …, 11. PubliconDurationChange/latestDuration/setValuekeep using 0–23 hours.hourLimitis honoured in separate mode: hour-column rows grey + snap based on the currently-selected AM/PM. The AM/PM column is freely toggleable so users can always switch halves to reach a valid hour. Wraparound limits (max < min) work the same as in the existing 12-hour mode.hourInterval > 1is respected end-to-end (rendering, snap, greying).separateAmPmItemandselectedSeparateAmPmItem.pickerColumnWidth.amPmnow also works (modal width math routed through the existingresolveColumnWidthhelper).DurationScrollaccepts optionalgetValidValueandisItemDisabledcallbacks;TimerPickerinjects cross-column context (current AM/PM + hourLimit + hourInterval) through these instead of passing extra prop channels through toPickerItem. No reentrantsetValuefrom the orchestrator.LatestDurationRef = { readonly current: number }replaces the syntheticRefObject<number>cast onlatestDuration.hours/latestDuration.*.cycleIdx→hourSlot(andfindNearestValidHourSlot) for readability.pickerColumnWidth.amPmoption. Example app gains aseparateAmPmPickermodal page and a cross-midnighthourLimittest page.