--- phase: 3 slug: event-write-back-pwa-install status: draft shadcn_initialized: false preset: none created: 2026-06-05 --- # Phase 3 — UI Design Contract ## Event Write-Back + PWA Install > Visual and interaction contract for Phase 3. Generated by gsd-ui-researcher. > Verified by gsd-ui-checker before execution begins. > > **Inheritance note:** Phase 3 inherits the full Phase 2 token layer > (`apps/pwa/src/styles/tokens.css`) without modification. All tokens below > are already committed in that file. This spec extends the Phase 2 contract > with write-path UI (EventForm, sync-state feedback, calendar picker), PWA > install surfaces (iOS walkthrough, Android prompt), and the destructive > delete confirmation pattern. --- ## Design System | Property | Value | |----------|-------| | Tool | none — CSS custom-property token layer (Phase 2 D-01/D-02) | | Preset | not applicable | | Component library | none — custom components against token layer | | Icon library | lucide-react (already used: MapPin; Phase 3 adds: Edit2, Trash2, X, Check, AlertCircle, Loader2, Smartphone, Plus) | | Font | system-ui stack: `system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif` | No `components.json` exists. No shadcn initialization needed — the token layer is sufficient for Phase 3's form and overlay surfaces. --- ## Token Layer (inherited — no new tokens required) All tokens live in `apps/pwa/src/styles/tokens.css`. Phase 3 reuses them verbatim. The one Phase-2-declared-but-unused token now activates: | Token | Hex | Phase 3 Usage | |-------|-----|---------------| | `--color-destructive` | `#DC2626` | Delete button label + icon; destructive confirmation text | No new CSS custom properties are introduced in Phase 3. Component styles reference existing `--color-*`, `--space-*`, and `--text-*` tokens only. --- ## Color _Source: Phase 2 token layer (`tokens.css`), pre-populated — no changes._ | Role | Token | Hex | Usage | |------|-------|-----|-------| | Dominant (60%) | `--color-surface` / `--color-surface-dim` | `#FFFFFF` / `#F7F7F8` | Page background, form surface, modal backdrop wash | | Secondary (30%) | `--color-surface-raised`, `--color-border`, `--color-border-subtle` | `#FFFFFF`, `#E2E4E9`, `#ECEEF2` | Form card shell, input borders, section dividers, popover shells | | Accent (10%) | Per-member `--color-member-*` + `--color-shared-family` | varies | Event chip fills, color legend swatches, calendar picker swatch — same as Phase 2. Never used on buttons, headings, or nav chrome | | Destructive | `--color-destructive` | `#DC2626` | Delete action button label + icon ONLY; delete confirmation dialog text | | Focus ring | `--color-focus-ring` | `#4A90D9` | Keyboard focus on all interactive elements | **Accent reserved for:** event chip fills, color legend swatches, calendar picker color swatches. Accent colors MUST NOT appear on form submit buttons, nav items, headings, input labels, or the iOS/Android install surfaces. **Primary action button color:** `--color-text-primary` (#111318) background — a dark, neutral filled button. This is intentional: the accent palette is member-color-semantic. CTA buttons use the neutral dark fill, not an accent color. --- ## Spacing Scale _Source: Phase 2 token layer — inherited unchanged._ | Token | CSS var | Value | Phase 3 Usage | |-------|---------|-------|---------------| | space-1 | `--space-1` | 4px | Icon gap within button labels, tight inline padding | | space-2 | `--space-2` | 8px | Input label-to-field gap, compact section dividers | | space-3 | `--space-3` | 12px | Form field internal padding (input horizontal), row gaps in install walkthrough | | space-4 | `--space-4` | 16px | Default vertical field gap in EventForm, popover section gap | | space-6 | `--space-6` | 24px | EventForm section padding, modal inner padding, install card padding | | space-8 | `--space-8` | 32px | Layout gaps; gap between EventForm footer buttons | | space-12 | `--space-12` | 48px | Major section breaks in iOS install walkthrough | **Exceptions:** - Touch targets: minimum 44×44px on all interactive elements (iOS HIG). Enforced via `min-height: 44px`. Not a spacing token — a layout constraint. - Input height: 44px minimum (satisfies touch target + visual weight). - Delete confirmation dialog action area: min 48px button height (destructive actions warrant extra tap weight). --- ## Typography _Source: Phase 2 token layer — inherited unchanged._ | Role | CSS vars | Size | Weight | Line Height | Phase 3 Usage | |------|----------|------|--------|-------------|---------------| | Body | `--text-body-*` | 15px | 400 | 1.5 | Form field values, description textarea, install walkthrough body copy, sync-state toast body | | Label | `--text-label-*` | 13px | 400 | 1.4 | Input labels, placeholder text, helper text, calendar picker option labels, recurrence preset labels | | Heading | `--text-heading-*` | 18px | 600 | 1.25 | EventForm modal title ("New Event" / "Edit Event"), install walkthrough step headings, delete confirmation heading | | Display | `--text-display-*` | 24px | 600 | 1.2 | Not used in Phase 3 new surfaces (reserved for nav/day-view from Phase 2) | **Weights declared:** 400 (regular) and 600 (semibold). No other weights. **Form input text:** 15px body weight (400). This matches the body token and is large enough for comfortable iOS touch input. **Error/helper text under inputs:** 13px label weight, `--color-destructive` for validation errors, `--color-text-muted` for neutral helpers. --- ## Component Inventory ### EventDetailPopover (extended — Phase 2 component) Phase 3 activates the reserved footer action area (line 380, `EventDetailPopover.tsx`). **Footer — read mode:** - "Edit" button: left-aligned, `--color-text-primary` label, Edit2 icon (16px), 44px touch target, ghost/text style (no fill) - "Delete" button: right-aligned, `--color-destructive` label, Trash2 icon (16px), 44px touch target, ghost/text style **Footer layout:** flex row, space-between. Both buttons use the label type (13px/400). ### EventForm (new component) Mounted as a modal overlay. On phone: full-screen bottom sheet (same pattern as EventDetailPopover). On tablet/desktop: centered dialog (max-width 480px, 8px radius, shadow). **Fields (in order):** | Field | Input type | Required | Placeholder / helper | |-------|-----------|----------|----------------------| | Title | text input | yes | "Event title" | | All-day toggle | toggle switch | — | Label: "All day" | | Start date | date input (or date picker) | yes | — | | Start time | time input | yes (hidden when all-day) | — | | End date | date input | yes | — | | End time | time input | yes (hidden when all-day) | — | | Calendar | dropdown/select (hidden when member has only 1 writable calendar — D-02) | yes | — | | Recurrence | segmented control / select: None / Daily / Weekly / Monthly / Yearly | — | Default: None | | Location | text input | no | "Add location" | | Description | textarea (3 rows) | no | "Add description" | **Field styling:** - Input border: 1px solid `--color-border`; on focus: 2px `--color-focus-ring`, 2px offset - Input border-radius: `--space-1` (4px) - Background: `--color-surface` - Label: 13px/400, `--color-text-secondary`, `--space-1` below label - Input text: 15px/400, `--color-text-primary` - Error state: border color `--color-destructive`; error message 13px `--color-destructive` below field **Calendar picker (visible only when >1 writable calendar — D-02):** - Dropdown showing calendar name + color swatch (8px circle, member color) - Label: "Calendar" - Options: personal calendar + "Family" (if shared family calendar exists) **Recurrence picker:** - Simple segmented select: "None" | "Daily" | "Weekly" | "Monthly" | "Yearly" - Whole-series only (D-11). No custom RRULE builder in v1. **Footer buttons:** - Cancel: ghost button, `--color-text-secondary`, left/secondary position - Save: filled button, `--color-text-primary` background, `#FFFFFF` label, right/primary position - Button height: 44px minimum; border-radius: `--space-1` - In-flight (after Save tapped, before API response): Save button shows Loader2 spinner (16px, `#FFFFFF`), disabled state. Label changes to "Saving…". ### CalendarPicker (within EventForm — conditional, D-02) Hidden entirely when the member has exactly one writable calendar (prevents the non-technical member from ever seeing a choice that doesn't exist yet). Visible only when the `calendars` API returns more than one writable record. ### SyncStateToast (new component) Displayed after a write operation is accepted (D-05). NOT a blocking modal. **Position:** Bottom of screen, above the tab bar / nav area on phone; bottom-right on tablet/desktop. Persists until terminal state is reached. **States:** | Status | Icon | Copy | Color | |--------|------|------|-------| | `pending` | Loader2 (spinning, 14px) | "Syncing…" | `--color-text-secondary` | | `done` | Check (14px) | "Saved" | `#50C878` (member-1 green — success semantic) | | `failed` | AlertCircle (14px) | "Didn't save — [conflict message or generic]" | `--color-destructive` | | `dead` | AlertCircle (14px) | "Not saved. Check your connection." | `--color-destructive` | **Toast styling:** - Background: `--color-surface-raised`; 1px border `--color-border`; 4px border-radius; subtle shadow - Padding: `--space-2` vertical, `--space-3` horizontal - Font: 13px/400 label - Auto-dismiss on `done` after 2 seconds. `failed`/`dead` states persist until dismissed (requires user tap). - `failed` / `dead` toast includes an "×" dismiss button (X icon, 16px, 44px touch target). **Conflict-specific toast (`failed` with 412 cause):** - Copy: "This event changed elsewhere — review the latest version" - No auto-dismiss; persists until user taps dismiss ### DeleteConfirmationDialog (new component) Triggered by the "Delete" button in EventDetailPopover footer. **Layout:** Centered modal dialog on all breakpoints (max-width 320px). Backdrop: `--color-overlay`. **Content:** - Heading (18px/600): "Delete event?" - Body (15px/400, `--color-text-secondary`): "This will be removed from your Fastmail calendar." - Actions (flex row, right-aligned): - "Cancel" — ghost button, `--color-text-secondary`, 44px height - "Delete" — filled button, `--color-destructive` background, `#FFFFFF` label, Trash2 icon (16px), 48px height No checkbox, no "don't ask again". Every delete requires explicit confirmation (two-person household, accidental deletes are high-cost). ### InstallPrompt (new component) Single component handling both iOS and Android flows. Renders nothing when already installed (`display-mode: standalone`). **iOS walkthrough (triggered by `isIOSSafariNonStandalone()`):** Trigger: First visit when iOS Safari non-standalone detected. A dismissible banner slides down from below the nav bar. Not a blocking modal. Banner: - Background: `--color-surface-raised`; 1px bottom border `--color-border` - Icon: Smartphone (24px, `--color-text-secondary`) - Heading (13px/600): "Install FamilySync" - Body (13px/400, `--color-text-secondary`): "Add to your Home Screen for the best experience." - "How to install" button: text link style, 13px, `--color-focus-ring` blue, opens the full walkthrough sheet - Dismiss (X icon): right-aligned, 44px touch target; sets `localStorage.installPromptShown = '1'` — banner never shown again Walkthrough sheet (full-screen bottom sheet on phone): - Header: "Add to Home Screen" (heading, 18px/600) - 5 steps with annotated screenshots: 1. "Open FamilySync in Safari" — Safari icon callout 2. "Tap the Share button" — annotated iOS screenshot (Share icon highlighted) 3. "Scroll down and tap 'Add to Home Screen'" — annotated iOS screenshot 4. "Tap 'Add' in the top right" — annotated iOS screenshot 5. "Open FamilySync from your Home Screen — it opens without the browser bar" - Screenshot annotations: orange (#F5A623 — `--color-member-2`) highlight circle / arrow overlay on each screenshot - "Done" button closes the sheet **Android install prompt (triggered by `beforeinstallprompt`):** Shown only when `canInstall === true` (the event has fired and not yet been dismissed). A banner identical in layout to the iOS banner, but: - Body: "Install FamilySync to your Home Screen for the best experience." - Single CTA button: "Install" (filled, `--color-text-primary` background, 44px, replaces "How to install" link) - Tapping "Install" calls `triggerInstall()` then dismisses banner --- ## Copywriting Contract | Element | Copy | |---------|------| | Primary CTA — create | "New Event" (+ icon, Plus 16px) | | Primary CTA — save (create mode) | "Create Event" | | Primary CTA — save (edit mode) | "Save Changes" | | Form title — create mode | "New Event" | | Form title — edit mode | "Edit Event" | | Save in-flight label | "Saving…" | | Sync toast — pending | "Syncing…" | | Sync toast — done | "Saved" | | Sync toast — failed (generic) | "Didn't save. Try again." | | Sync toast — failed (conflict / 412) | "This event changed elsewhere — review the latest version" | | Sync toast — dead | "Not saved. Check your connection." | | Delete button label | "Delete" | | Delete confirmation heading | "Delete event?" | | Delete confirmation body | "This will be removed from your Fastmail calendar." | | Delete confirmation CTA | "Delete" | | Delete confirmation cancel | "Cancel" | | Calendar picker label | "Calendar" | | Recurrence picker label | "Repeat" | | Recurrence options | "None" / "Daily" / "Weekly" / "Monthly" / "Yearly" | | All-day toggle label | "All day" | | Title input placeholder | "Event title" | | Location input placeholder | "Add location" | | Description placeholder | "Add description" | | Empty title validation error | "Title is required" | | End-before-start validation error | "End time must be after start" | | iOS install banner heading | "Install FamilySync" | | iOS install banner body | "Add to your Home Screen for the best experience." | | iOS install banner CTA | "How to install" | | Android install banner body | "Install FamilySync to your Home Screen for the best experience." | | Android install banner CTA | "Install" | | iOS walkthrough sheet heading | "Add to Home Screen" | | iOS walkthrough step 1 | "Open FamilySync in Safari" | | iOS walkthrough step 2 | "Tap the Share button" | | iOS walkthrough step 3 | "Scroll down and tap 'Add to Home Screen'" | | iOS walkthrough step 4 | "Tap 'Add' in the top right" | | iOS walkthrough step 5 | "Open FamilySync from your Home Screen — it opens without the browser bar" | | iOS walkthrough close | "Done" | **Destructive actions and confirmation patterns:** | Action | Trigger | Confirmation approach | |--------|---------|----------------------| | Delete event | "Delete" button in EventDetailPopover footer | DeleteConfirmationDialog modal — explicit two-tap | No inline delete (single tap). No "undo" toast. Confirmation dialog is mandatory for all deletes. --- ## Interaction Contract ### EventForm — open / close - Create: tapped from a "New Event" FAB (floating action button, phone) or a toolbar button (tablet/desktop). Opens as bottom sheet (phone) or centered dialog (tablet/desktop). - Edit: tapped from "Edit" in EventDetailPopover footer. EventDetailPopover closes, EventForm opens with fields pre-populated. - Escape key (keyboard) or tap-backdrop: dismisses form. No confirmation required for unsaved new events. No confirmation required for unsaved edits (low-cost; user can re-open). - Save: calls `POST /api/events/create` or `PATCH /api/events/:uid/edit`. Returns 202 immediately (D-05). SyncStateToast appears. Form closes. ### EventForm — all-day toggle behavior - Toggling "All day" ON: hides start-time and end-time inputs. End date auto-advances to match start date if end date is before start date. - Toggling "All day" OFF: shows time inputs with default values (start: 09:00, end: 10:00). - No animation; show/hide is instantaneous. ### EventForm — calendar picker (conditional, D-02) - Hidden when member has exactly 1 writable calendar. - Shown when member has 2 writable calendars (personal + shared Family). - Default selection: last-used calendar (D-01). First-time default: personal calendar. - Calendar move (edit mode): if user changes the calendar selection, the API handler produces a delete-from-old + create-on-new pair (D-04). No special UI — the form treats it as a normal save. ### EventForm — recurrence - Default: "None" (selected). - Selecting any recurrence preset applies a whole-series RRULE (D-11). - In edit mode on a recurring event: recurrence field shows the current RRULE preset (if it maps to a simple preset) or "Custom" (read-only, if the existing RRULE doesn't match any preset). Custom RRULE editing is not available in v1. - No "edit this occurrence / edit all" fork in v1 (D-11 / CAL-09 deferred). ### Sync-state feedback - After Save: form closes immediately. SyncStateToast shows "Syncing…" with spinner. - TanStack Query polls `/api/events/sync-status?uid={uid}` at 3-second intervals while status is `pending`. - On `done`: toast updates to "Saved" (Check icon), auto-dismisses after 2 seconds. `queryClient.invalidateQueries(['events'])` fires to refresh the calendar view. - On `failed` / `dead`: toast updates to error state, persists until user dismisses. Calendar is NOT refreshed (optimistic event may still show — this is intentional; the user sees what they intended and can retry or dismiss). - Conflict (`failed` with 412 message): calendar refreshes via `invalidateQueries(['events'])` to show the actual server state. Toast shows conflict copy. ### Delete interaction 1. User taps "Delete" in EventDetailPopover footer. 2. EventDetailPopover remains open; DeleteConfirmationDialog appears above it (z-index higher). 3. User taps "Cancel": dialog closes, popover resumes. 4. User taps "Delete" (red): dialog and popover both close. API call fires (`DELETE /api/events/:uid`). SyncStateToast shows "Syncing…". Calendar optimistically removes the event. 5. On sync `done`: toast auto-dismisses. Event confirmed gone. 6. On sync `failed`: toast shows error. Event MAY reappear in calendar on next refetch (server-authoritative state wins). No silent loss. ### iOS install walkthrough - Banner is shown once per device per user (localStorage flag `installPromptDismissed`). - Banner is never shown when `window.matchMedia('(display-mode: standalone)').matches` is true. - Banner is never shown on non-iOS devices (Android and desktop get the `beforeinstallprompt` flow or nothing). - Tapping "How to install" opens the walkthrough sheet (full-screen bottom sheet, not a new page). - Walkthrough sheet has a close button (X, top-right, 44px) and a "Done" button at the bottom. - Dismissing the banner (X) records the flag and hides the banner permanently. The walkthrough remains accessible from a "?" / "Install" link in AppNav settings (if future phases add a settings surface) — for Phase 3, the banner is the only trigger. ### Android install - Install banner appears only when `canInstall === true` (the `beforeinstallprompt` event fired). - Never shown on iOS or desktop. - Tapping "Install" calls the deferred prompt. On `accepted`: banner disappears permanently, `appinstalled` event fires. On `dismissed`: banner hides for the session (not permanently — the event may re-fire on a future visit). ### Touch targets All interactive elements in Phase 3 new surfaces: minimum 44×44px. Enforced via `min-height: 44px` and `padding` where needed. Applies to: form buttons, all-day toggle, recurrence options, calendar picker, delete confirmation buttons, install banner buttons, walkthrough step close/done. ### Keyboard / accessibility - EventForm: focus moves to the Title input when the form opens. Tab order follows DOM order (title → all-day → start date → [start time] → end date → [end time] → [calendar] → recurrence → location → description → cancel → save). - EventForm: `role="dialog"`, `aria-modal="true"`, `aria-label="New Event"` / `"Edit Event"`. - Focus trap inside EventForm and DeleteConfirmationDialog while open. - Escape closes EventForm (no confirmation). Escape closes DeleteConfirmationDialog without deleting. - All-day toggle: `role="switch"`, `aria-checked`, keyboard-activatable with Space. - Recurrence picker: `role="radiogroup"` with `role="radio"` options or a `