App structure: a swipe-in menu shell; pages/, link/, actions/; Settings
The shell (shell.dart): a drawer from the left edge or each page's menu button. Dash, Signals, Captures; Tools (Camera, Link test, Orin power options), the rarely used ones, after pirate-station-aide; Settings (gateway address, dark/bright, build-time theme and landing). Landing view at build time: YUKART_HOME=dash|signals, signals for now. Dash, Signals and Captures stay alive while hidden; Captures has its own navigator, so a run survives switching views. Back goes inside Captures, then to the landing view, then out. The mock banner sits over every page. main.dart is startup only; the old home screen is pages/signals.dart; dialogs and sheets moved to actions/; the protocol client, USB binding and Reading to link/. lib/README.md catalogues it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
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// Signals: every value the gateway sends, as a list, beside the raw traffic. The
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// development landing view (lib/shell_scope.dart).
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import 'package:flutter/material.dart';
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import '../actions/marks.dart';
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import '../actions/server_url.dart';
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import '../link/boundary.dart';
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import '../link/net.dart';
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import '../shell_scope.dart';
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import '../theme/palette.dart';
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import '../widgets/link_status.dart';
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class SignalsPage extends StatelessWidget {
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const SignalsPage({super.key, required this.boundary, required this.usb});
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final Boundary boundary;
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final UsbLink usb;
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@override
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Widget build(BuildContext context) {
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final b = boundary;
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return ListenableBuilder(
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listenable: Listenable.merge([boundary, usb]),
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builder: (context, _) => Scaffold(
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appBar: AppBar(
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leading: const MenuButton(),
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title: const Text('Signals'),
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actions: [
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LinkChip(boundary: b),
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const SizedBox(width: 12),
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],
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),
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body: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Material(
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color: AppTheme.of(context).surface,
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child: InkWell(
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onTap: () => editUrl(context, b, usb),
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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: 8,
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),
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child: LinkDetails(boundary: b, usb: usb),
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),
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),
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),
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Expanded(
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child: LayoutBuilder(
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builder: (context, c) {
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final wide = c.maxWidth > 800;
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final signals = SignalList(boundary: b);
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final raw = RawLog(boundary: b);
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return wide
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? Row(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Expanded(flex: 3, child: signals),
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const VerticalDivider(width: 1),
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Expanded(flex: 2, child: raw),
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],
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)
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: Column(
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children: [
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Expanded(child: signals),
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const Divider(height: 1),
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Expanded(child: raw),
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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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floatingActionButton: FloatingActionButton.extended(
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onPressed: () => showMarkSheet(context, b),
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icon: const Icon(Icons.flag),
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label: Text(
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b.pending.isEmpty ? 'Mark' : 'Mark (${b.pending.length} pending)',
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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 SignalList extends StatelessWidget {
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const SignalList({super.key, required this.boundary});
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final Boundary boundary;
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@override
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Widget build(BuildContext context) {
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final b = boundary;
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if (b.state != LinkState.up) {
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return const Center(child: Text('No link to the Orin'));
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}
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if (b.seen.isEmpty) {
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return Center(
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child: Text(
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'Connected — the Orin is sending no vehicle state\n(source: ${b.hello?['source'] ?? '?'})',
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textAlign: TextAlign.center,
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),
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);
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}
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// Rows stay put: a signal that drops out is shown as missing, not removed.
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final names = b.seen.keys.toList()..sort();
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return ListView(
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padding: const EdgeInsets.all(12),
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children: [
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for (final n in names)
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b.signals[n] is Map
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? SignalTile(
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name: n,
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envelope: Map<String, dynamic>.from(b.signals[n] as Map),
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)
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: SignalTile(name: n, envelope: b.seen[n]!, missing: true),
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],
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);
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}
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}
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/// Missing, known-without-value, stale and fresh each look different: all four are normal in a car.
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class SignalTile extends StatelessWidget {
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const SignalTile({
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super.key,
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required this.name,
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required this.envelope,
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this.missing = false,
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});
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final String name;
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/// The current envelope, or the last one seen when [missing] (only its unit is used then).
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final Map<String, dynamic> envelope;
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final bool missing;
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@override
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Widget build(BuildContext context) {
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final p = AppTheme.of(context);
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if (missing) {
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return ListTile(
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title: Text(
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name,
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style: TextStyle(fontFamily: 'monospace', color: p.subdued),
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),
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subtitle: Text(
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'MISSING · not in the latest state',
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style: TextStyle(color: p.alarm),
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),
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trailing: Text.rich(
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TextSpan(
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children: [
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TextSpan(
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text: '?',
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style: TextStyle(fontSize: 34, color: p.subdued),
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),
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TextSpan(
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text: ' ${envelope['unit'] ?? ''}',
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style: TextStyle(fontSize: 16, color: p.subdued),
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),
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],
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),
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),
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);
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}
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final v = envelope['value'];
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final quality = envelope['quality'] as String? ?? 'ok';
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final stale = quality != 'ok';
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final text = v == null
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? '—'
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: (v is double && v == v.roundToDouble() ? v.toInt().toString() : '$v');
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final style = TextStyle(
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fontSize: 34,
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fontWeight: FontWeight.w600,
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fontFeatures: const [FontFeature.tabularFigures()],
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color: stale || v == null ? p.subdued : p.foreground,
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fontStyle: stale ? FontStyle.italic : null,
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);
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return ListTile(
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title: Text(name, style: const TextStyle(fontFamily: 'monospace')),
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subtitle: Text(
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style: stale ? TextStyle(color: p.caution) : null,
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[
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if (stale) quality.toUpperCase(),
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if (v == null) 'no value',
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if (envelope['mock'] == true) 'mock',
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].join(' · '),
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),
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trailing: Text.rich(
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TextSpan(
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children: [
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TextSpan(text: text, style: style),
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TextSpan(
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text: ' ${envelope['unit'] ?? ''}',
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style: const TextStyle(fontSize: 16),
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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 RawLog extends StatelessWidget {
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const RawLog({super.key, required this.boundary});
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final Boundary boundary;
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@override
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Widget build(BuildContext context) {
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final b = boundary;
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return ListView(
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padding: const EdgeInsets.all(8),
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children: [
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if (b.pending.isNotEmpty || b.acks.isNotEmpty) ...[
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Text('Commands', style: Theme.of(context).textTheme.titleSmall),
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for (final p in b.pending)
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Text(
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'… ${p.cmd} ${p.args['text'] ?? ''} (unacked)',
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style: TextStyle(color: AppTheme.of(context).caution),
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),
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for (final a in b.acks)
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Text(
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'${a.ok ? '✓' : '✗'} ${a.detail}',
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style: TextStyle(
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color: a.ok
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? AppTheme.of(context).good
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: AppTheme.of(context).alarm,
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),
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),
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const Divider(),
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],
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Text(
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'Raw messages, newest first',
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style: Theme.of(context).textTheme.titleSmall,
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),
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for (final r in b.recent)
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 2),
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child: Text(
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r,
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style: const TextStyle(fontFamily: 'monospace', fontSize: 11),
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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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