safaeh 0.4.0

Adaptive sheets, dialogs, camera/QR chrome, page index, and sidenav for Flutter.

[Safaeh]

Safaeh - صفائح

safaeh
Adaptive sheets, onboarding designs, camera / QR chrome, page index, and sidenav for Flutter —
host app keeps i18n, routing, and the camera plugin.

Safaeh is presentation-only: it has no network, cloud, billing, or authentication-service dependency. Onboarding and auth widgets receive state and callbacks from the host application.

Live demo — open the example catalog in the browser
zyzto.github.io/Safaeh

Live demo · Install · Quick start · Widgets · Features · Host app · Example · Changelog · Versioning · Host integration · العربية

The name safaeh comes from Arabic صفائح (ṣafāʾiḥ): sheets / plates — plural of صفيحة (ṣafīḥa).

---

Why

Flutter apps accumulate one-off bottom sheets, dialogs, rails, and camera overlays. Then you need:

• the same route to be a phone sheet and a tablet dialog, and morph when the viewport crosses the breakpoint
• chrome that honors MediaQuery.disableAnimationsOf
• no easy_localization, Riverpod, go_router, or mobile_scanner inside the package

Safaeh is that chrome layer. Used in Hisab.

On pub.dev: safaeh · Repo: Zyzto/Safaeh.

---

Widgets

[Card picker — live demo] [Confirm sheet — live demo] [Option tiles — live demo]

_{Card picker · Confirm · Option tiles — try them in the live demo}

[Sidenav rail — live demo]

Captured with widgets_to_image (cd example && flutter test test/widget_images_test.dart).

---

Features at a glance

Area	What you get
Onboarding	Six public presets through SafaehOnboardingDesign; SafaehOnboarding, design catalog metadata, host-owned steps, trackers, action bars, list items, and generic SafaehAuthFlow
Sheets	showSafaeh morphs phone sheet ↔ tablet dialog; showSafaehPicker / SafaehOption (cards, enabled); showSafaehTilePicker / SafaehTileOption (list rows, search); showSafaehMultiTilePicker (multi-select); showSafaehConfirm, showSafaehTextInput, SafaehStatusBody, buildSafaehSheetShell, SafaehOptionList, SafaehOptionTile
Dropdown	SafaehAnchoredDropdownChip / SafaehDropdownOption for anchored menus that match the trigger width, with host label and selection-color hooks
Dialog	showSafaehDialog centered panel with optional railWidthOf
Theme	SafaehTheme / SafaehThemeData for breakpoint, motion, radius, rail widths, camera compact height, contentMaxWidth, floatingAppearance; copyWith
Motion	safaehResolvedMotion zeros durations when animations are disabled
Nav	SafaehSidenav temporary drawer (asDrawer: true), clipping rail, or overlay rail (overlay: true); SafaehFloatingNavBar (same SafaehSidenavDestination); keyboard-aware bottom-nav metrics and FAB placement
Page index	SafaehPageIndex, overlay, scrollToPageSection, safaehActivePageSectionId (ids + keys only — no .tr() on scroll)
App bar	SafaehMorphingAppBar, SafaehMorphingAppBarAction, SafaehMorphingAppBarBottom for page-aware title, action, and bottom chrome morphing
Content	safaehBandMetrics, SafaehContentBand, SafaehEndAsideLayout, SafaehContentAlignedAppBar, SafaehContentAlignedFabLocation
Camera	showSafaehCameraSheet / SafaehCameraSheetHost paper-roll compact ↔ full
QR chrome	SafaehQrScannerOverlay (optional host preview), SafaehQrTopBar, SafaehQrMessageBody, SafaehQrFramePainter
RTL	safaehChevronEnd, safaehChevronStart, safaehArrowBack (LTR glyphs; Material matchTextDirection mirrors them)

Core: Flutter Material only. Preview, decode, copy, and navigation stay in the host.

---

Install

dependencies:
  safaeh: ^0.4.0

Or:

flutter pub add safaeh

Git tag pin (see VERSIONING.md):

dependencies:
  safaeh:
    git:
      url: https://github.com/Zyzto/Safaeh.git
      ref: v0.4.0

import 'package:safaeh/safaeh.dart';

Current version: 0.4.0.

---

Quick start

1. Wrap the app

SafaehTheme(
  data: const SafaehThemeData(
    tabletBreakpoint: 600,
    dialogMaxWidth: 560,
  ),
  child: MaterialApp(
    home: const MyHome(),
  ),
);

Call-sites can still override breakpoint, motion, and transitions.

2. Choose a public onboarding design

All six onboarding designs are part of the package. The host chooses the design and owns persistence, localization, routing, and domain actions:

SafaehOnboarding(
  design: SafaehOnboardingDesign.orbit,
  steps: [
    SafaehOnboardingStep(
      id: 'welcome',
      titleBuilder: (context) => const Text('Welcome'),
      bodyBuilder: (context) => const Text('Your host-owned content.'),
    ),
  ],
  labels: SafaehOnboardingLabels(
    next: 'Continue',
    stepProgress: (current, total) => '$current / $total',
  ),
  actions: SafaehOnboardingHostActions(
    languageControl: const LanguageButton(),
    themeControl: const ThemeButton(),
    onComplete: () async => SafaehOnboardingResult.completed,
  ),
);

Use SafaehOnboardingDesignCatalog.all to build a host-owned design picker. Safaeh does not save the selection. SafaehAuthFlow uses the same six presets for generic sign-in, sign-up, recovery, magic-link, and pending-email screens; its callbacks are supplied by the host.

3. Adaptive sheet

await showSafaeh<void>(
  context: context,
  title: 'Rename',
  titleBuilder: (context, style) => Text('Rename', style: style),
  child: const TextField(),
);

Phone: bottom sheet. Tablet+: centered dialog. The same route morphs when width crosses tabletBreakpoint. Pass phonePlacement: SafaehPhoneSheetPlacement.center to grow the phone sheet so the first content center aligns with the phone center (still flush with the bottom).

4. Option picker

final choice = await showSafaehPicker<int>(
  context: context,
  title: 'How to settle',
  selected: 1,
  options: const [
    SafaehOption(
      value: 1,
      label: 'Minimal',
      subtitle: 'Fewest transfers',
      icon: Icons.bolt_outlined,
    ),
  ],
);

The in-body title hides when the viewport is wide (header title only). SafaehOption.enabled greys the card and ignores taps.

5. Tile picker (list rows)

final mode = await showSafaehTilePicker<String>(
  context: context,
  title: 'Import mode',
  titleBuilder: (context, style) => Text('Import mode', style: style),
  header: const Text('12 new · 3 updated'),
  selected: 'add',
  options: const [
    SafaehTileOption(
      value: 'add',
      label: 'Add copies',
      subtitle: 'Keeps existing data',
      leading: Icon(Icons.add_circle_outline),
    ),
    SafaehTileOption(
      value: 'replace',
      label: 'Replace',
      enabled: false,
    ),
  ],
);

Uses SafaehOptionList + SafaehOptionTile. Hosts that already wrap showSafaeh can mount SafaehTilePickerBody as the child. Same knobs as other showSafaeh* helpers (railWidthOf, motion, …).

6. Confirm and text input

Host passes every label. Phone shows cancel in the action row; tablet uses the sheet close control. showSafaehConfirm returns true if confirmed, false if the phone cancel button is pressed, and null if dismissed (tablet close, barrier, or system back). Treat only ok == true as confirmed.

final ok = await showSafaehConfirm(
  context: context,
  title: 'Delete item',
  content: 'This cannot be undone.',
  confirmLabel: 'Delete',
  cancelLabel: 'Cancel',
  isDestructive: true,
  titleBuilder: (context, style) => Text('Delete item', style: style),
);

final name = await showSafaehTextInput(
  context: context,
  title: 'Tag name',
  doneLabel: 'Done',
  cancelLabel: 'Cancel',
  titleBuilder: (context, style) => Text('Tag name', style: style),
);

7. Centered dialog

await showSafaehDialog<void>(
  context: context,
  railWidthOf: (context) => 0,
  builder: (context) => const Card(child: Text('Hello')),
);

8. Floating nav and content band

SafaehFloatingNavBar(
  selectedIndex: index,
  onDestinationSelected: (i) => setState(() => index = i),
  destinations: const [
    SafaehSidenavDestination(
      label: 'Home',
      icon: Icons.home_outlined,
      selectedIcon: Icons.home,
    ),
  ],
);

SafaehContentBand(
  aside: const Text('On this page'),
  child: body,
);

When the host owns a floating bottom nav, expose its geometry to overlays and FABs instead of repeating offsets. The visual inset is intentionally smaller than the scroll-content inset:

SafaehBottomNavScope(
  child: Stack(
    children: [
      body,
      SafaehPageIndexOverlay(
        title: 'On this page',
        entries: entries,
        activeId: activeId,
        onSelect: onSelect,
      ),
    ],
  ),
);

final fabLocation = SafaehBottomNavAwareFabLocation.resolve(
  context,
  base: FloatingActionButtonLocation.endFloat,
);

Use SafaehFloatingNavBar(hideWhenKeyboardVisible: true) when the shell nav should disappear while the IME is open. Set the shell scaffold's resizeToAvoidBottomInset to false so the chrome does not jump during the keyboard transition. SafaehBottomNavMetrics exposes separate visual and content insets for custom layouts.

SafaehContentBand centers from incoming constraints and hides aside when narrow (SafaehThemeData.isWide). Hosts with a sibling shell rail keep their own leftOffset / bandWidth math and use SafaehEndAsideLayout.

9. Morphing app bar

Drive one shell app bar from the live PageController.page. Safaeh crossfades adjacent host-provided titles, keeps a stable action slot, and lets the host fade actions or bottom chrome at the same page position:

SafaehMorphingAppBar(
  page: pageController.page ?? 0,
  titles: const [
    Text('Home'),
    Text('Statistics'),
    Text('Settings'),
  ],
  // Reserve the leading slot when actions should not move the title.
  leading: const SizedBox(width: kToolbarHeight),
  actionsBuilder: (context, page) => Stack(
    alignment: AlignmentDirectional.center,
    children: [
      SafaehMorphingAppBarAction(
        page: page,
        targetPage: 0,
        child: IconButton(
          onPressed: openHome,
          icon: const Icon(Icons.home_outlined),
        ),
      ),
      SafaehMorphingAppBarAction(
        page: page,
        targetPage: 2,
        child: IconButton(
          onPressed: openSettings,
          icon: const Icon(Icons.settings_outlined),
        ),
      ),
    ],
  ),
  bottom: SafaehMorphingAppBarBottom(
    factor: (2 - (pageController.page ?? 0)).clamp(0.0, 1.0).toDouble(),
    height: 48,
    child: const Center(child: Text('Range controls')),
  ),
);

titles and all action text stay in the host, so localization and routing do not enter Safaeh. page is clamped to the title range before the action builder runs. SafaehMorphingAppBarAction uses linear page distance for its opacity and ignores taps below its interactive threshold. The bottom helper clips and resizes its child while reporting the matching preferred height. See host integration and the Morphing app bar catalog entry in example/.

10. Shared feedback

Mount one host around the app navigator. The host owns the feedback overlay, surface treatment, animation, safe-area handling, and optional bottom-nav clearance; the app still owns translated copy and domain callbacks:

SafaehFeedbackHost(
  itemWidthBuilder: (context) => MediaQuery.sizeOf(context).width - 32,
  bottomInsetBuilder: (context) => 72,
  child: MaterialApp.router(routerConfig: router),
);

context.showSafaehFeedback(
  'Saved',
  type: SafaehFeedbackType.success,
);

context.showSafaehFeedbackWithAction(
  'Deleted',
  actionLabel: 'Undo',
  onAction: undo,
);

Use showSafaehCustomFeedback for app-specific content while retaining the same host placement and dismissal contract. Keep localization, reporting, and business state in the host app.

Band metrics for other apps (app bar, FAB, aside):

final metrics = safaehBandMetrics(
  contentAreaWidth: constraints.maxWidth,
  maxWidth: 600,
);

SafaehContentAlignedAppBar(
  leftOffset: metrics.leftOffset,
  bandWidth: metrics.bandWidth,
  title: const Text('Title'),
);

SafaehContentAlignedFabLocation.resolve(
  leftOffset: metrics.leftOffset,
  bandWidth: metrics.bandWidth,
  endFree: metrics.endFree,
  textDirection: Directionality.of(context),
);

See doc/host-integration.md.

11. Overlay sidenav

For a sidenav that expands over the page without reserving layout width, put the overlay rail above the host content in a Stack:

Stack(
  fit: StackFit.expand,
  children: [
    const PageBody(),
    SafaehSidenav(
      overlay: true,
      collapsed: collapsed,
      onToggleCompact: () => setState(() => collapsed = !collapsed),
      floatingAppearance: const SafaehFloatingAppearance(
        style: SafaehFloatingSurfaceStyle.glass,
      ),
      title: 'Safaeh',
      selectedIndex: index,
      onDestinationSelected: onDestinationSelected,
      destinations: destinations,
    ),
  ],
);

The overlay inherits SafaehThemeData.floatingAppearance when the direct value is omitted. Its scrim, if needed, remains host-owned.

12. Shared floating-surface appearance

Package-owned floating chrome can inherit one appearance from SafaehThemeData, or override it on an individual widget or call:

const appearance = SafaehFloatingAppearance(
  style: SafaehFloatingSurfaceStyle.glass,
  transparency: 48, // 0 = opaque, 100 = fully transparent
  blurSigma: 18,
  tintColor: Color(0xFFF7F0E5),
);

SafaehTheme(
  data: const SafaehThemeData(floatingAppearance: appearance),
  child: const MyApp(),
);

SafaehFloatingNavBar(
  floatingAppearance: const SafaehFloatingAppearance(
    style: SafaehFloatingSurfaceStyle.vista,
  ),
  selectedIndex: index,
  onDestinationSelected: (i) => setState(() => index = i),
  destinations: destinations,
);

The presets are solid, translucent, glass (iOS-like), and vista (Vista/Aero-like). transparency, blurSigma, tintColor, border, and shadows are nullable preset overrides. For sheets and dialogs, a call wins over SafaehRouteOptions.floatingAppearance, which wins over the theme:

When tintColor is omitted, glass uses the active theme surface as a white-ish frosted tint in light themes and the matching dark surface in dark themes. Set tintColor when a host wants a branded glass color.

await showSafaeh<void>(
  context: context,
  route: const SafaehRouteOptions(
    floatingAppearance: SafaehFloatingAppearance(
      style: SafaehFloatingSurfaceStyle.translucent,
    ),
  ),
  floatingAppearance: const SafaehFloatingAppearance(
    style: SafaehFloatingSurfaceStyle.glass,
  ),
  child: const MySheetBody(),
);

The treatment applies to package-owned shells: the floating nav, overlay sidenav, narrow page-index trigger/popover, sheet and dialog shells, camera panel, and QR top bar. Scrims, previews, host children, QR message content, wide page-index rails, and host-owned FABs remain unchanged. With no appearance configured, existing rendering is retained, including the floating nav's transparent default.

13. Camera / QR chrome

await showSafaehCameraSheet<void>(
  context: context,
  builder: (context, sheet) => MyPreview(
    expanded: sheet.expanded,
    onToggle: sheet.toggleExpanded,
    onClose: sheet.dismiss,
  ),
);

Embed on a route with SafaehCameraSheetHost (omit openAnimation, pass onDismiss). Put SafaehQrScannerOverlay / SafaehQrMessageBody inside that bottom panel — they are full-bleed overlays, not their own sheet. Keep mobile_scanner in the app.

---

What stays in the host

Concern	Stays in the app
Copy	easy_localization, UserText, titleBuilder
Routing	go_router, reserved rail width via railWidthOf
Camera	mobile_scanner, permissions, SystemChrome orientation lock
State	Riverpod / whatever the app already uses
Tiles	UserText + optional accent colors on SafaehOptionTile

---

UI inventory

Sheets: showSafaeh, SafaehRouteOptions, showSafaehPicker, SafaehOption, SafaehOptionPickerBody, showSafaehTilePicker, showSafaehMultiTilePicker, SafaehTileOption, SafaehTilePickerBody, SafaehTileBuilder, showSafaehConfirm, SafaehConfirmSheet, showSafaehTextInput, SafaehTextInputSheet, SafaehStatusBody, buildSafaehSheetShell, SafaehOptionList, SafaehOptionTile, kSheetContentPadding, kSafaehSheetPadding, SafaehTitleBuilder, SafaehLabelBuilder, safaehTitleFromLabel, safaehPop, SafaehTransition, safaehFadeScale, safaehFade, SafaehPhoneSheetPlacement, safaehPhoneCenterSheetTop

Dialog: showSafaehDialog

Camera: showSafaehCameraSheet, SafaehCameraSheetHost, SafaehCameraSheet, SheetHandleBar, SheetHandleDrag

QR: SafaehQrScannerOverlay, SafaehQrTopBar, SafaehQrMessageBody, SafaehQrFramePainter

Shell: SafaehSidenav, SafaehSidenavDestination, SafaehSidenavProfile, SafaehSidenavAvatar, SafaehFloatingNavBar, SafaehPageIndex, SafaehPageIndexOverlay, scrollToPageSection, safaehActivePageSectionId, SafaehMorphingAppBar, SafaehMorphingAppBarAction, SafaehMorphingAppBarBottom, safaehBandMetrics, SafaehContentBand, SafaehEndAsideLayout, SafaehContentAlignedAppBar, SafaehContentAlignedFabLocation

Tokens: SafaehTheme, SafaehThemeData, SafaehThemeData.copyWith, safaehResolvedMotion, kSafaehCameraCompactHeightFraction

RTL: safaehChevronEnd, safaehChevronStart, safaehArrowBack

---

Architecture

┌─────────────────────────────────────────────────────────────┐
│         Host app (i18n, GoRouter, camera, UserText)         │
└─────────────────────────────┬───────────────────────────────┘
                              │
┌─────────────────────────────▼───────────────────────────────┐
│                      SafaehTheme                             │
│   breakpoint · motion · radius · rail · camera fraction     │
└─────────────────────────────┬───────────────────────────────┘
                              │
┌─────────────────────────────▼───────────────────────────────┐
│  showSafaeh / picker / confirm / text / dialog              │
│  SafaehSidenav · floating nav · page index · content band   │
│  camera sheet host · QR overlay chrome                      │
└─────────────────────────────┬───────────────────────────────┘
                              │
┌─────────────────────────────▼───────────────────────────────┐
│              Flutter Material (no Riverpod)                 │
└─────────────────────────────────────────────────────────────┘

---

Example

Live demo — zyzto.github.io/Safaeh

The hosted catalog is the example/ web build. CI deploys it after tests pass on main.

A Riverpod-free catalog lives in example/ — same split as Edadat: catalog.dart (en / ar / ja / zh / es), app.dart (theme + home), and a vertical SafaehContentBand gallery of every public API. Section titles open the standalone demo; wide bands use extra columns on the same page. Language and theme toggles, no mobile_scanner.

The example is package-style (web only in-tree); analyze with:

cd example && flutter pub get && dart analyze --fatal-infos && flutter test

example/test/widget_images_test.dart writes widget PNGs to screenshots/.

To run on a device, generate the other platforms (flutter create . --platforms=android,ios inside example/). Details: example/README.md.

Package tests:

dart analyze --fatal-infos && flutter test

---

Branding

The logo wordmark uses Baz (Baz Light) — the same Arabic typeface as Edadat and Siglat. The SVG outlines صــفائح (tatweel after ص) so GitHub renders without loading the font. Baz is not registered as a package font and the OTF is not shipped.

---

Versioning

See VERSIONING.md and CHANGELOG.md. Tags are vX.Y.Z and must match pubspec.yaml.

---

License

MPL-2.0 — weak copyleft, commercial use allowed. Modified package files stay under MPL; your app can remain closed-source.