No locking (plan 03, decision 5): openForEdit keeps an EditSnapshot — the
prefilled form plus the raw Events-row times, which the form itself can't
see (it derives its times from the tapped occurrence, so an externally
moved event would otherwise stay invisible). Right before writing,
performSave re-reads the event and compares snapshots: a mismatch parks
the save in SaveUiState.AwaitingConflict carrying the already-chosen
recurring scope, and the dialog offers overwrite / discard / cancel
(OptionCard style). Overwrite still writes only dirty fields, so external
changes to untouched fields survive either way. A deleted event lands in
SaveUiState.Gone — an informational dialog that closes form and detail.
Fields the form can't write (attendees, status, self response, reminder
methods) are excluded from the comparison so sync noise can't fake a
conflict. The load-time zone is pinned in the EditTarget so a device
timezone change mid-edit can't either.
Store metadata: F-Droid descriptions (DE+EN) and the README stop claiming
read-only and now describe write support and reminder delivery. New
fastlane phoneScreenshots (6 per locale: week/month/day/detail/form/
reminder onboarding), captured on-device against demo-only calendars.
Tests: EditSnapshot equality (unchanged event, field change, row-time move
the form can't see, non-writable changes stay quiet).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Calendula now posts event reminders itself (the Etar model): the provider
schedules the alarms and broadcasts EVENT_REMINDER, but a calendar app must
turn them into visible notifications — essential for users whose only
calendar app this is. A manifest-registered, exported receiver (data scheme
content://com.android.calendar) wakes us at reminder time; no foreground
service, no own alarm scheduling.
Delivery path (data/reminders/): EventReminderReceiver (Hilt, goAsync) →
ReminderAlertStore queries CalendarAlerts for STATE_SCHEDULED rows with
ALARM_TIME <= now → ReminderNotifier posts one notification per alert on a
dedicated high-importance channel, then best-effort marks rows FIRED
(needs WRITE_CALENDAR; without it a re-broadcast silently replaces — tag
per alert + setOnlyAlertOnce). Swiped notifications never return: FIRED
rows are never re-queried, so no dismiss-intent machinery. Research
(AOSP CalendarAlarmManager): the provider creates alert rows only for
METHOD_ALERT reminders, so the email-reminder filter happens upstream.
Tapping opens the event's detail screen: MainActivity is singleTop now,
parses eventId/begin/end extras (onCreate + onNewIntent) into Compose
state, and CalendarHost consumes the key exactly like an event tap.
Onboarding gained a one-time second step after the calendar grant (shared
OnboardingScaffold extracted from PermissionScreen): explains delivery,
warns that a second calendar app with notifications on duplicates
reminders, requests POST_NOTIFICATIONS (dialog on API 33+ only; minSdk 29).
"Not now" turns the feature off; reminders default ON. Settings mirrors
the toggle in a new Notifications section with the duplicate hint, and
re-requests the permission when enabling. Strings DE+EN.
Deliberately deferred (roadmap): snooze/dismiss actions, BOOT_COMPLETED /
exact-alarm scheduling, battery-exemption prompts.
Tests: reminderTimeText (all-day UTC-midnight reading, exclusive end day,
midnight-crossing ranges), reminders/onboarding pref round-trips.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The create form (v1.2) now edits: a pencil on the detail screen (writable
calendars only, contextual WRITE upgrade like delete) opens it prefilled via
EventDetail.toEditForm; populated sections always show, the calendar is
fixed, and a dirty-check writes only changed columns (pristine saves are
no-ops). Saving a dirty recurring event parks in SaveUiState.AwaitingScope
and asks how far the change reaches (Google model): "only this event" =
modified-occurrence exception via CONTENT_EXCEPTION_URI (empty optionals as
explicit NULLs since the provider clones the parent row), "this and all
following" = series split (insert new event first, then truncate), "all
events" = series-row update with the time delta applied to the series
DTSTART. A changed rule drops the exception option. Delete gained the same
middle scope.
Recurrence: EventForm.rrule + SimpleRecurrence (FREQ/INTERVAL/UNTIL/COUNT +
weekly BYDAY with locale-ordered weekday toggles) behind a picker on create
and edit; unrepresentable rules render humanized (shared ui/common
RecurrenceText) and survive verbatim. UNTIL validation flags rules ending
before the event starts.
Provider lessons baked in (verified on-device via adb probes): instance
caches regenerate only from an update's own values, so truncation sends the
full time-column set (truncateSeries) — RRULE-only updates left a stale
duplicate occurrence on the split day; UNTIL is written as the local end of
day in UTC (toRRule(zone), previousLocalDayEndUtcMillis) so UTC+x zones
can't leak an extra day. Reminder edits reconcile against actual provider
rows, keeping untouched rows' methods.
Tests: RecurrenceTest (parse/render/round-trip, truncation), update/exception
mapper paths, repository pass-throughs, prefill + populatedFields, raw-title
mapper.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Post-v1.2.0 design iteration on the event form, reviewed slice by slice
on-device:
- Form rebuilt on the detail screen's card system: tonal EditCards with
gutter icons (centred on the first row, top-aligned for multiline),
borderless inline fields (placeholders at half opacity), calendar-coloured
title accent, no dividers, bare top bar
- Optional sections (location, description, reminders, availability,
visibility) with per-user defaults in Settings ("New event form" toggles);
hidden ones unfold via a "More fields" picker dialog
- Reminders: stacked rows + full-width borderless add; two-step picker
(one-tap presets, then custom amount + minutes/hours/days/weeks dropdown);
written as METHOD_ALERT Reminders rows. Availability busy/free segmented
toggle; visibility selector with per-level icons
- OptionCard (ui/common) is now the app-wide selection-dialog standard;
calendar picker, visibility, more-fields, reminder presets and the
recurring-delete chooser all use it — radio-row dialogs removed
- MaterialExpressiveTheme with MotionScheme.standard() (expressive bounce
felt overdone); FAB stack + field reveals animate on theme springs;
jump-to-today slides toward today's actual direction
- IME: adjustResize + imePadding so the keyboard never pans the form
- Tests: form-field prefs round-trips, availability/access provider
mappings; DE+EN strings throughout
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Second slice of milestone 2 (write support):
- EventForm domain model + problems() validation (end-before-start,
no-calendar; blank titles and instant events stay legal)
- Full-screen EventEditScreen: title, all-day switch, M3 date/time pickers
(moving the start preserves the duration), calendar picker limited to
writable calendars, location, description. Save validates, requests the
WRITE upgrade contextually, and closes on success
- Calendar preselection: explicit pick > last-used (CalendarPrefs) > first
writable calendar
- insertEvent in the data source; EventWriteMapper (JVM-tested) normalises
all-day events to UTC midnights with exclusive DTEND, timed events to the
device zone
- CalendarFabColumn shared by month/week/day: persistent "+" FAB anchored on
the visible day, jump-to-today pill stacked above it
- Tests: EventForm validation, write-time mapping (incl. DST-safe epoch
check), repository createEvent delegation/error propagation
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
First slice of milestone 2 (write support), per the new plan in
docs/superpowers/plans/2026-06-11-03-write-support.md:
- Delete from the event detail screen with confirmation; recurring events
choose "only this event" (cancelled exception via CONTENT_EXCEPTION_URI,
series survives) or "all events in the series" (Events-row delete)
- WRITE_CALENDAR in the manifest; onboarding requests read+write in one
system dialog but only read gates the app — declining write keeps it
usable read-only. v1.0 installs get a contextual write request on their
first delete
- CALENDAR_ACCESS_LEVEL is read into CalendarSource.canModifyContents;
read-only calendars (WebCal, birthdays, …) show no write actions. The
no-op placeholder Edit button is removed until edit ships (v1.3)
- Onboarding copy drops the now-false "read-only" claim (DE+EN)
- Tests: repository delete delegation/error propagation, access-level
mapping; FakeCalendarDataSource grows write ops
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The onboarding screen is the first thing a new user sees; it was a bare
centred title + body + button. Rebuild it as a proper Material 3 Expressive
welcome:
- Branded hero reconstructing the launcher mark (slate squircle + foreground
vector); the denied state adds a lock badge over the corner
- App-name eyebrow, a benefit-led headline, and three trust rows (stays on
device / every calendar together / no tracking) with tonal icon chips
- Full-width filled CTA with a trailing arrow, pinned in a Scaffold bottom bar
clear of the navigation bar; scrollable body for short screens
- "Read-only · no internet permission" footnote — accurate: the app declares
only READ_CALENDAR
- Denied/recovery state reuses the same shell with Open-settings (primary) and
Try-again (text) actions
- 8dp spacing scale, edge-to-edge insets handled via Scaffold
Built with the newly installed material-3 skill's token/component guidance.
Resolves the pre-1.0 polish backlog item.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The Busy availability value is the default for nearly every event, so a
"Busy" chip on every detail screen was noise. Show the pill only for Free
(the noteworthy case) and move it to the top-right of the title row instead
of the under-title chip strip. That strip now carries only status/access and
hides entirely when there's nothing noteworthy. Drops the now-unused
event_availability_busy string from both locales.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Round out the read-only model so the detail view shows everything
CalendarContract actually stores, ahead of write support.
Data layer:
- New domain types: Reminder, EventStatus, Availability, AccessLevel,
AttendeeRelationship, AttendeeType; EventDetail gains reminders, status,
availability, accessLevel, eventTimezone, selfStatus and Attendee gains
relationship + type (all defaulted so existing callers compile)
- EventDetailProjection reads STATUS / AVAILABILITY / ACCESS_LEVEL /
EVENT_TIMEZONE / SELF_ATTENDEE_STATUS; AttendeeProjection reads
RELATIONSHIP + TYPE; new ReminderProjection queries CalendarContract.Reminders
- Mappers translate each provider integer code, guarding STATUS's null-vs-0
ambiguity (0 == TENTATIVE) so an absent status reads as Confirmed
- Mapper unit tests cover every new column's codes
Detail UI:
- Status / availability / access chips under the title; cancelled also strikes
the title through
- Reminders card with humanised lead times (plurals, DE + EN)
- Foreign-timezone card, shown only for timed events in a non-device zone
- Attendee role badges + the user's own "Your response: …" line
- http(s) URLs in the description are now tappable
URL field cut: CalendarContract exposes no Events.URL column (only the
CUSTOM_APP_URI app deep-link), so URLs are surfaced by linkifying the
description instead. Recorded in ROADMAP/CHANGELOG.
Version bumped to 0.6.0 / 6.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
M3 — calendar filter: the navigation drawer now hosts the calendar list
inline (grouped by account, colour swatch + checkbox per calendar). Hidden
calendars are persisted app-side and filtered centrally in the repository,
so month/week/day re-filter live the moment a checkbox flips. Drawer trimmed
to Today, the calendar filter, and Settings, with leading icons and a clear
title/section type scale; the stubbed jump-to-date entry (M2) was removed.
M4 — settings: full-screen destination with appearance (theme System/Light/
Dark, Material You dynamic colour auto-disabled < API 31, week start Auto/Mon/
Sun), language (per-app locales via AppCompat, persisted to API 29), and an
about section (version, licence, source link). Theme is driven by one
activity-scoped settings source so changes apply app-wide at once. Week start
now drives the month grid and week view; Auto follows the locale.
Also:
- default view switched from month to week
- Settings screen handles system back (was closing the app)
- fix pre-existing NonObservableLocale/LocalContextConfigurationRead lint
errors in EventDetailScreen so CI lint is green again
- versionName/versionCode bumped to 0.5.0 / 5
Tests: repository hidden-filter (incl. live re-emit), SettingsPrefs round-trip
+ week-start resolution, filter grouping. lint + unit tests + assembleDebug green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Tapping an event in the week/day timeline opens a full-screen detail
destination (MD3 list→detail, not a bottom sheet) overlaying the calendar
with a slide transition. One card per field (when, calendar, location,
description, attendees, recurrence) with leading icons; location taps open
a maps intent. Loading/Failure/Success throughout.
Recurrence is humanized from the RRULE — e.g. "Every week on Tue and Thu
until 31 Dec 2026" — covering FREQ/INTERVAL/BYDAY/UNTIL/COUNT with
abbreviated, italicised day names and localized list formatting, falling
back to a generic label for rules it can't render.
Also:
- fix: recurring events failed to open (series row stores DURATION, not
DTEND, so the mapper dropped them as EventNotFound). The detail keeps
them and shows the tapped occurrence's own times from Instances.
- feat: month day cell → opens the day view anchored to that date.
- build: add material-icons-extended (R8 strips unused icons in release).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Day view as a one-column slice of the week view: shared TimedBlock/
AllDaySpan layout, per-day swipe navigation, hoisted noon-centred scroll,
animated all-day strip, and a compact top bar showing the full date.
- DayUiState / DayViewModel / DayScreen under ui/day
- reuse layoutDay/layoutAllDay/coversDay from the week package
- add Day to IMPLEMENTED_VIEWS; CalendarHost routes it explicitly
- day_today_action strings (en/de)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Rounded, permanently-soft day-column scroll viewport via two viewports
sharing one scroll state (gutter + columns stay aligned); plain
rectangular column cards inside
- Vertical scroll position now persists across week swipes; noon-centring
only runs on first entry into the week view (from month/day)
- All-day strip height is hoisted + animated, shared by both swipe pages,
so it slides along and resizes smoothly instead of jumping
- Multi-line event time label so the end time isn't clipped in narrow
columns; hour labels centred in the gutter
- Calendar-week (ISO) badge in the header gutter, aligned with the date
numbers; dropped the redundant "All-day" gutter label
- Small breathing room between the top section and the timeline
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the throwaway debug screen with the first real calendar UI and a
functional Month <-> Week switcher, on Material 3 Expressive.
Month view (S1):
- Material 3 Expressive card-per-day grid; only the current month's weeks
render (neighbouring days left blank)
- per-day event dots with "+N" overflow, today via primaryContainer
- spring-based press feedback from the active motion scheme
- swipe + drawer navigation, Loading/Failure/Success states
Week view (S2):
- vertical time schedule with overlap-resolved lanes (per-day clipping,
midnight spanning, instant events)
- all-day / multi-day events as connected horizontal spans
- single scroll container (gutter + day columns stay aligned), columns
bundled in a rounded container, noon-centred on load
- top section colour-shifts with the app bar on scroll; swipe navigation,
three states
Shared / infra:
- CalendarHost holds the active view; RootScreen renders it post-permission
- ui/common building blocks: CalendarDrawer, CalendarFailure,
ViewSwitcherPill, pastelize, observable locale, M3 Expressive slide
transition (motionScheme fastSpatialSpec)
- unit tests for the week layout (lanes, clipping, all-day spans)
- build: compileSdk 37, material3 pinned to 1.5.0-alpha21 for Expressive
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
READ_CALENDAR permission declared. Strings split into English master
(values/) and German (values-de/) with the Loading/Failure/Success
generic state strings used across screens. Backup rules let DataStore
back up by default with no file-based content. Theme stub delegates
real theming to Compose; the Activity-level XML theme only sets
transparent system bars and dark-mode hint.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
