520 lines
17 KiB
Dart
520 lines
17 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:provider/provider.dart';
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import '../l10n/app_localizations.dart';
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import '../utils/navigation.dart';
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import '../viewmodels/registration_view_model.dart';
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import '../viewmodels/remote_sync_view_model.dart';
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const _codeLength = 6;
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class RegistrationView extends StatefulWidget {
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const RegistrationView({super.key});
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@override
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State<RegistrationView> createState() => _RegistrationViewState();
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}
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class _RegistrationViewState extends State<RegistrationView> {
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final _deviceNameController = TextEditingController(text: 'Bar terminal 1');
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final _regCodeController = TextEditingController();
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final _formKey = GlobalKey<FormState>();
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance.addPostFrameCallback((_) {
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context.read<RegistrationViewModel>().fetchVenues();
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});
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}
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@override
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void dispose() {
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_deviceNameController.dispose();
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_regCodeController.dispose();
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super.dispose();
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}
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Future<void> _register(RegistrationViewModel vm) async {
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if (!_formKey.currentState!.validate()) return;
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FocusScope.of(context).unfocus();
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await vm.registerDevice(
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deviceName: _deviceNameController.text.trim(),
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registrationCode: _regCodeController.text.trim().toUpperCase(),
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);
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}
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void _finish() {
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// The redirect away from /register only sees the base location of a
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// pushed route, so leave the screen ourselves.
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unawaited(context.read<RemoteSyncViewModel>().activate());
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context.popOrGo('/admin');
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}
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@override
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Widget build(BuildContext context) {
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final vm = context.watch<RegistrationViewModel>();
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final l10n = AppLocalizations.of(context);
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return Scaffold(
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backgroundColor: Theme.of(context).colorScheme.surface,
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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title: Text(l10n.connectToRemoteServer),
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leading: vm.step == RegistrationStep.registered
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? null
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: IconButton(
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tooltip: l10n.cancel,
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onPressed: vm.step == RegistrationStep.registering
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? null
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: () => context.popOrGo('/admin'),
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icon: const Icon(Icons.close_rounded),
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),
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automaticallyImplyLeading: false,
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),
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body: SafeArea(
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child: Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 24),
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 480),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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_StepIndicator(current: _stepIndex(vm)),
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const SizedBox(height: 32),
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_buildStep(vm, l10n),
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],
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),
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),
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),
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),
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),
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);
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}
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int _stepIndex(RegistrationViewModel vm) {
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if (vm.step == RegistrationStep.registered) return 2;
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return vm.selectedVenue == null ? 0 : 1;
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}
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Widget _buildStep(RegistrationViewModel vm, AppLocalizations l10n) {
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switch (vm.step) {
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case RegistrationStep.initial:
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case RegistrationStep.loadingVenues:
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return _buildLoading(l10n);
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case RegistrationStep.error:
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return _buildError(vm, l10n);
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case RegistrationStep.venuesLoaded:
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case RegistrationStep.registering:
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if (vm.selectedVenue == null) {
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return _buildVenueSelection(vm, l10n);
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}
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return _buildDeviceDetails(vm, l10n);
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case RegistrationStep.registered:
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return _buildSuccess(vm, l10n);
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}
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}
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Widget _buildLoading(AppLocalizations l10n) {
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const SizedBox(height: 40),
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const CircularProgressIndicator(strokeWidth: 3),
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const SizedBox(height: 16),
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Text(
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l10n.connectingToServer,
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style: Theme.of(context).textTheme.titleMedium,
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),
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],
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);
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}
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Widget _buildError(RegistrationViewModel vm, AppLocalizations l10n) {
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final scheme = Theme.of(context).colorScheme;
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Icon(Icons.cloud_off_rounded, size: 56, color: scheme.error),
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const SizedBox(height: 16),
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Text(
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l10n.failedToConnect,
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style: Theme.of(context).textTheme.titleLarge,
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),
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const SizedBox(height: 8),
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Text(
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vm.errorMessage ?? l10n.unknownError,
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: scheme.onSurface.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 24),
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FilledButton.icon(
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onPressed: vm.retry,
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icon: const Icon(Icons.refresh),
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label: Text(l10n.retry),
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),
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],
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);
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}
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Widget _buildVenueSelection(RegistrationViewModel vm, AppLocalizations l10n) {
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final scheme = Theme.of(context).colorScheme;
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Text(
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l10n.selectVenue,
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style: Theme.of(context).textTheme.headlineSmall,
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),
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const SizedBox(height: 4),
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Text(
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l10n.selectVenueToLink,
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: scheme.onSurface.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 24),
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if (vm.venues.isEmpty)
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Container(
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padding: const EdgeInsets.all(24),
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decoration: BoxDecoration(
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color: scheme.surfaceContainerHighest.withValues(alpha: 0.5),
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borderRadius: BorderRadius.circular(16),
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),
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child: Column(
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children: [
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Icon(
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Icons.storefront_outlined,
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size: 40,
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color: scheme.onSurface.withValues(alpha: 0.4),
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),
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const SizedBox(height: 12),
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Text(
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l10n.noVenuesFound,
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.bodyMedium,
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),
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],
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),
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)
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else
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for (final venue in vm.venues)
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Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: Material(
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color: scheme.surfaceContainerHighest.withValues(alpha: 0.5),
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borderRadius: BorderRadius.circular(16),
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clipBehavior: Clip.antiAlias,
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child: InkWell(
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onTap: () => vm.selectVenue(venue),
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child: Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 16,
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),
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child: Row(
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children: [
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CircleAvatar(
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backgroundColor: scheme.primaryContainer,
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foregroundColor: scheme.onPrimaryContainer,
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child: const Icon(Icons.storefront_outlined),
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),
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const SizedBox(width: 16),
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Expanded(
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child: Text(
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venue.name,
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style: Theme.of(context).textTheme.titleMedium,
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),
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),
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Icon(
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Icons.chevron_right_rounded,
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color: scheme.onSurface.withValues(alpha: 0.4),
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),
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],
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),
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),
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),
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),
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),
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const SizedBox(height: 16),
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Center(
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child: TextButton.icon(
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onPressed: vm.retry,
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icon: const Icon(Icons.refresh, size: 18),
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label: Text(l10n.refreshVenues),
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),
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),
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],
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);
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}
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Widget _buildDeviceDetails(RegistrationViewModel vm, AppLocalizations l10n) {
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final scheme = Theme.of(context).colorScheme;
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final isBusy = vm.step == RegistrationStep.registering;
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return Form(
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key: _formKey,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Container(
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padding: const EdgeInsets.fromLTRB(16, 8, 8, 8),
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decoration: BoxDecoration(
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color: scheme.primaryContainer.withValues(alpha: 0.5),
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borderRadius: BorderRadius.circular(16),
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),
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child: Row(
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children: [
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Icon(Icons.storefront_outlined, color: scheme.primary),
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const SizedBox(width: 12),
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Expanded(
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child: Text(
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vm.selectedVenue!.name,
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style: Theme.of(context).textTheme.titleMedium,
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),
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),
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TextButton(
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onPressed: isBusy ? null : vm.deselectVenue,
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child: Text(l10n.changeVenue),
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),
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],
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),
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),
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const SizedBox(height: 24),
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Text(
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l10n.enterDeviceDetails,
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: scheme.onSurface.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 16),
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TextFormField(
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controller: _deviceNameController,
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enabled: !isBusy,
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textInputAction: TextInputAction.next,
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decoration: InputDecoration(
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labelText: l10n.deviceName,
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hintText: l10n.deviceNameHint,
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prefixIcon: const Icon(Icons.tablet_android_outlined),
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border: const OutlineInputBorder(),
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),
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validator: (v) =>
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v == null || v.trim().isEmpty ? l10n.deviceNameRequired : null,
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),
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const SizedBox(height: 16),
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TextFormField(
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controller: _regCodeController,
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enabled: !isBusy,
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autofocus: true,
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maxLength: _codeLength,
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textAlign: TextAlign.center,
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textCapitalization: TextCapitalization.characters,
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textInputAction: TextInputAction.done,
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autocorrect: false,
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enableSuggestions: false,
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inputFormatters: [
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FilteringTextInputFormatter.allow(RegExp('[a-zA-Z0-9]')),
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_UpperCaseFormatter(),
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],
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style: Theme.of(context).textTheme.headlineSmall?.copyWith(
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letterSpacing: 8,
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fontFamily: 'monospace',
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),
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decoration: InputDecoration(
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labelText: l10n.registrationCode,
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hintText: '•' * _codeLength,
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helperText: l10n.registrationCodeHelper,
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border: const OutlineInputBorder(),
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),
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onFieldSubmitted: (_) => _register(vm),
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validator: (v) => v == null || v.trim().length < _codeLength
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? l10n.enterRegistrationCode
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: null,
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),
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if (vm.errorMessage != null) ...[
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const SizedBox(height: 8),
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: scheme.errorContainer,
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borderRadius: BorderRadius.circular(12),
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),
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child: Row(
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children: [
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Icon(Icons.error_outline, color: scheme.onErrorContainer),
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const SizedBox(width: 12),
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Expanded(
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child: Text(
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vm.errorMessage!,
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style: TextStyle(color: scheme.onErrorContainer),
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),
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),
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],
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),
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),
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],
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const SizedBox(height: 24),
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FilledButton(
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style: FilledButton.styleFrom(
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minimumSize: const Size.fromHeight(52),
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),
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onPressed: isBusy ? null : () => _register(vm),
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child: isBusy
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? Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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const SizedBox(
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width: 18,
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height: 18,
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child: CircularProgressIndicator(strokeWidth: 2),
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),
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const SizedBox(width: 12),
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Text(l10n.registeringDevice),
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],
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)
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: Text(l10n.register),
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),
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],
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),
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);
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}
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Widget _buildSuccess(RegistrationViewModel vm, AppLocalizations l10n) {
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final scheme = Theme.of(context).colorScheme;
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Center(
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child: Container(
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padding: const EdgeInsets.all(20),
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decoration: BoxDecoration(
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color: scheme.primaryContainer,
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shape: BoxShape.circle,
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),
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child: Icon(
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Icons.check_rounded,
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size: 56,
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color: scheme.onPrimaryContainer,
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),
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),
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),
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const SizedBox(height: 24),
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Text(
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l10n.deviceRegistered,
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.headlineSmall,
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),
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const SizedBox(height: 8),
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Text(
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l10n.venueNowLinked(vm.selectedVenue?.name ?? ''),
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.bodyLarge,
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),
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const SizedBox(height: 4),
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Text(
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l10n.openTabsWillSync,
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.bodyMedium?.copyWith(
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color: scheme.onSurface.withValues(alpha: 0.6),
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),
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),
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const SizedBox(height: 32),
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FilledButton.icon(
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style: FilledButton.styleFrom(
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minimumSize: const Size.fromHeight(52),
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),
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onPressed: _finish,
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icon: const Icon(Icons.arrow_forward),
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label: Text(l10n.done),
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),
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],
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);
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}
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}
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class _StepIndicator extends StatelessWidget {
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final int current;
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const _StepIndicator({required this.current});
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@override
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Widget build(BuildContext context) {
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final l10n = AppLocalizations.of(context);
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final scheme = Theme.of(context).colorScheme;
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final labels = [l10n.stepVenue, l10n.stepDevice, l10n.stepLinked];
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return Row(
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children: [
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for (var i = 0; i < labels.length; i++) ...[
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if (i > 0)
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Expanded(
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child: Container(
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height: 2,
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margin: const EdgeInsets.only(bottom: 20),
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color: i <= current
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? scheme.primary
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: scheme.onSurface.withValues(alpha: 0.15),
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),
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),
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Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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CircleAvatar(
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radius: 14,
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backgroundColor: i <= current
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? scheme.primary
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: scheme.onSurface.withValues(alpha: 0.1),
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foregroundColor: i <= current
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? scheme.onPrimary
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: scheme.onSurface.withValues(alpha: 0.6),
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child: i < current
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? const Icon(Icons.check_rounded, size: 16)
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: Text(
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'${i + 1}',
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style: const TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.w600,
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),
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),
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),
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const SizedBox(height: 4),
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Text(
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labels[i],
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style: Theme.of(context).textTheme.labelSmall?.copyWith(
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color: i <= current
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? scheme.onSurface
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: scheme.onSurface.withValues(alpha: 0.5),
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),
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),
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],
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),
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],
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],
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);
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}
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}
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class _UpperCaseFormatter extends TextInputFormatter {
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@override
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TextEditingValue formatEditUpdate(
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TextEditingValue oldValue,
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TextEditingValue newValue,
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) {
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return newValue.copyWith(text: newValue.text.toUpperCase());
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}
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}
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