mirror of
https://github.com/dz0ny/meshcore-sar.git
synced 2026-08-11 16:30:28 +00:00
841 lines
30 KiB
Dart
841 lines
30 KiB
Dart
import 'package:flutter/material.dart';
|
|
import 'package:flutter/foundation.dart';
|
|
import 'package:provider/provider.dart';
|
|
import 'package:meshcore_client/meshcore_client.dart' hide Contact;
|
|
import 'package:usb_serial/usb_serial.dart';
|
|
import '../providers/connection_provider.dart';
|
|
import '../providers/app_provider.dart';
|
|
import '../services/network_scanner_service.dart';
|
|
import '../l10n/app_localizations.dart';
|
|
|
|
/// Connection Dialog with tabs for BLE devices and Network servers
|
|
class ConnectionDialog extends StatefulWidget {
|
|
const ConnectionDialog({super.key});
|
|
|
|
@override
|
|
State<ConnectionDialog> createState() => _ConnectionDialogState();
|
|
}
|
|
|
|
class _ConnectionDialogState extends State<ConnectionDialog>
|
|
with SingleTickerProviderStateMixin {
|
|
late TabController _tabController;
|
|
late final ConnectionProvider _connectionProvider;
|
|
final NetworkScannerService _networkScanner = NetworkScannerService();
|
|
final List<DiscoveredServer> _discoveredServers = [];
|
|
int _scannedCount = 0;
|
|
int _totalToScan = 0;
|
|
int _lastTabIndex = 0;
|
|
String?
|
|
_connectingToServerKey; // Track which server is being connected to (ip:port)
|
|
|
|
// Named listener method for proper cleanup
|
|
void _onTabChanged() {
|
|
if (_tabController.index == _lastTabIndex) return;
|
|
_lastTabIndex = _tabController.index;
|
|
|
|
if (_tabController.index == 0) {
|
|
_refreshBleDevices();
|
|
}
|
|
|
|
if (_tabController.index == 1) {
|
|
// Switched to network tab
|
|
if (_networkScanner.hasCachedResults && _discoveredServers.isEmpty) {
|
|
// Load cached results
|
|
setState(() {
|
|
_discoveredServers.addAll(_networkScanner.cachedServers);
|
|
});
|
|
debugPrint(
|
|
'📦 [NetworkScanner] Loaded ${_discoveredServers.length} servers from cache',
|
|
);
|
|
} else if (!_networkScanner.isScanning &&
|
|
!_networkScanner.hasCachedResults) {
|
|
// No cache, start initial scan
|
|
_startNetworkScan();
|
|
}
|
|
}
|
|
}
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
_tabController = TabController(length: 3, vsync: this);
|
|
_connectionProvider = Provider.of<ConnectionProvider>(
|
|
context,
|
|
listen: false,
|
|
);
|
|
|
|
// Defer scan startup until after the first frame so Provider listeners
|
|
// are not notified while this dialog is still being built.
|
|
WidgetsBinding.instance.addPostFrameCallback((_) {
|
|
if (!mounted) return;
|
|
_refreshBleDevices();
|
|
});
|
|
|
|
// Set up network scanner callbacks
|
|
_networkScanner.onServerDiscovered = (server) {
|
|
if (mounted) {
|
|
setState(() {
|
|
// Only add if not already in the list (deduplicate)
|
|
if (!_discoveredServers.contains(server)) {
|
|
_discoveredServers.add(server);
|
|
}
|
|
});
|
|
}
|
|
};
|
|
|
|
_networkScanner.onProgressUpdate = (scanned, total) {
|
|
if (mounted) {
|
|
setState(() {
|
|
_scannedCount = scanned;
|
|
_totalToScan = total;
|
|
});
|
|
}
|
|
};
|
|
|
|
// Listen to tab changes using named method for proper cleanup
|
|
_tabController.addListener(_onTabChanged);
|
|
}
|
|
|
|
@override
|
|
void dispose() {
|
|
_connectionProvider.stopScan();
|
|
_networkScanner.stopScan();
|
|
// Remove listener before disposing to prevent memory leaks
|
|
_tabController.removeListener(_onTabChanged);
|
|
_tabController.dispose();
|
|
super.dispose();
|
|
}
|
|
|
|
void _startNetworkScan() {
|
|
setState(() {
|
|
_discoveredServers.clear();
|
|
_scannedCount = 0;
|
|
_totalToScan = 0;
|
|
});
|
|
_networkScanner.clearCache(); // Clear cache before starting new scan
|
|
_networkScanner.scan();
|
|
}
|
|
|
|
Future<void> _refreshBleDevices() async {
|
|
await _connectionProvider.stopScan();
|
|
if (!mounted) return;
|
|
await _connectionProvider.startScan();
|
|
}
|
|
|
|
Color _getSignalColor(int rssi) {
|
|
if (rssi >= -60) return Colors.green;
|
|
if (rssi >= -75) return Colors.orange;
|
|
return Colors.red;
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
final connectionProvider = context.watch<ConnectionProvider>();
|
|
|
|
return Container(
|
|
height: MediaQuery.of(context).size.height * 0.9,
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(context).colorScheme.surface,
|
|
borderRadius: const BorderRadius.vertical(top: Radius.circular(20)),
|
|
),
|
|
child: Column(
|
|
children: [
|
|
// Header
|
|
Container(
|
|
padding: const EdgeInsets.all(16),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(context).colorScheme.surfaceContainerHighest,
|
|
borderRadius: const BorderRadius.vertical(
|
|
top: Radius.circular(20),
|
|
),
|
|
),
|
|
child: Column(
|
|
children: [
|
|
Row(
|
|
children: [
|
|
IconButton(
|
|
icon: Icon(
|
|
Icons.arrow_back,
|
|
color: Theme.of(context).colorScheme.onSurface,
|
|
),
|
|
onPressed: () {
|
|
Navigator.pop(context);
|
|
},
|
|
),
|
|
Expanded(
|
|
child: Text(
|
|
AppLocalizations.of(context)!.appTitle,
|
|
textAlign: TextAlign.center,
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onSurface,
|
|
fontSize: 18,
|
|
fontWeight: FontWeight.bold,
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(width: 48), // Balance the back button
|
|
],
|
|
),
|
|
const SizedBox(height: 8),
|
|
// Tab Bar
|
|
TabBar(
|
|
controller: _tabController,
|
|
tabs: const [
|
|
Tab(text: 'BLE', icon: Icon(Icons.bluetooth)),
|
|
Tab(text: 'Network', icon: Icon(Icons.wifi)),
|
|
Tab(text: 'USB', icon: Icon(Icons.usb)),
|
|
],
|
|
),
|
|
],
|
|
),
|
|
),
|
|
|
|
// Tab Content
|
|
Expanded(
|
|
child: TabBarView(
|
|
controller: _tabController,
|
|
children: [
|
|
// BLE Devices Tab
|
|
_buildBleDevicesTab(connectionProvider),
|
|
|
|
// Network Servers Tab
|
|
_buildNetworkServersTab(),
|
|
|
|
// USB Serial Tab
|
|
_buildUsbTab(connectionProvider),
|
|
],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
}
|
|
|
|
Widget _buildBleDevicesTab(ConnectionProvider connectionProvider) {
|
|
return Column(
|
|
children: [
|
|
// Info banner
|
|
Container(
|
|
margin: const EdgeInsets.all(16),
|
|
padding: const EdgeInsets.all(16),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(context).colorScheme.primaryContainer,
|
|
borderRadius: BorderRadius.circular(8),
|
|
),
|
|
child: Row(
|
|
children: [
|
|
Icon(
|
|
Icons.info_outline,
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
),
|
|
SizedBox(width: 12),
|
|
Expanded(
|
|
child: Text(
|
|
AppLocalizations.of(context)!.defaultPinInfo,
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
fontSize: 13,
|
|
),
|
|
),
|
|
),
|
|
IconButton(
|
|
icon: Icon(
|
|
Icons.refresh,
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
),
|
|
onPressed: _refreshBleDevices,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
|
|
// Device list
|
|
Expanded(
|
|
child:
|
|
connectionProvider.isScanning &&
|
|
connectionProvider.scannedDevices.isEmpty
|
|
? const Center(child: CircularProgressIndicator())
|
|
: connectionProvider.scannedDevices.isEmpty
|
|
? Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Icon(
|
|
Icons.bluetooth_searching,
|
|
size: 64,
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.onSurfaceVariant.withValues(alpha: 0.5),
|
|
),
|
|
SizedBox(height: 16),
|
|
Text(
|
|
AppLocalizations.of(context)!.noDevicesFound,
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onSurfaceVariant,
|
|
fontSize: 16,
|
|
),
|
|
),
|
|
const SizedBox(height: 8),
|
|
TextButton.icon(
|
|
onPressed: _refreshBleDevices,
|
|
icon: Icon(Icons.refresh),
|
|
label: Text(AppLocalizations.of(context)!.scanAgain),
|
|
),
|
|
],
|
|
),
|
|
)
|
|
: ListView.builder(
|
|
itemCount: connectionProvider.scannedDevices.length,
|
|
itemBuilder: (context, index) {
|
|
final scannedDevice =
|
|
connectionProvider.scannedDevices[index];
|
|
final device = scannedDevice.device;
|
|
final rssi = scannedDevice.rssi;
|
|
final signalColor = _getSignalColor(rssi);
|
|
|
|
return Container(
|
|
margin: const EdgeInsets.symmetric(
|
|
horizontal: 16,
|
|
vertical: 4,
|
|
),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.surfaceContainerHighest,
|
|
borderRadius: BorderRadius.circular(12),
|
|
border: Border.all(
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.outline.withValues(alpha: 0.2),
|
|
width: 1,
|
|
),
|
|
),
|
|
child: ListTile(
|
|
contentPadding: const EdgeInsets.symmetric(
|
|
horizontal: 16,
|
|
vertical: 8,
|
|
),
|
|
leading: Icon(
|
|
Icons.bluetooth,
|
|
color: signalColor,
|
|
size: 32,
|
|
),
|
|
title: Text(
|
|
device.platformName.isNotEmpty
|
|
? device.platformName
|
|
: 'Unknown Device',
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onSurface,
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
subtitle: Row(
|
|
children: [
|
|
Text(
|
|
AppLocalizations.of(context)!.tapToConnect,
|
|
style: TextStyle(
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.onSurfaceVariant,
|
|
fontSize: 14,
|
|
),
|
|
),
|
|
const SizedBox(width: 8),
|
|
Text(
|
|
'$rssi dBm',
|
|
style: TextStyle(
|
|
color: signalColor,
|
|
fontSize: 12,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
trailing: Icon(
|
|
Icons.chevron_right,
|
|
color: Theme.of(context).colorScheme.onSurfaceVariant,
|
|
),
|
|
onTap: () async {
|
|
final appProvider = context.read<AppProvider>();
|
|
Navigator.pop(context);
|
|
|
|
final success = await connectionProvider.connect(
|
|
device,
|
|
);
|
|
if (success &&
|
|
connectionProvider.deviceInfo.isConnected) {
|
|
await appProvider.initialize();
|
|
}
|
|
},
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
|
|
Widget _buildNetworkServersTab() {
|
|
final bool showingCachedResults =
|
|
!_networkScanner.isScanning &&
|
|
_networkScanner.hasCachedResults &&
|
|
_discoveredServers.isNotEmpty;
|
|
|
|
return Column(
|
|
children: [
|
|
// Info banner
|
|
Container(
|
|
margin: const EdgeInsets.fromLTRB(16, 16, 16, 16),
|
|
padding: const EdgeInsets.all(16),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(context).colorScheme.primaryContainer,
|
|
borderRadius: BorderRadius.circular(8),
|
|
),
|
|
child: Row(
|
|
children: [
|
|
Icon(
|
|
showingCachedResults ? Icons.cached : Icons.info_outline,
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
),
|
|
const SizedBox(width: 12),
|
|
Expanded(
|
|
child: Text(
|
|
showingCachedResults
|
|
? 'Showing cached results. Tap refresh to rescan.'
|
|
: 'Scanning local network for MeshCore WiFi devices on port 5000',
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
fontSize: 13,
|
|
),
|
|
),
|
|
),
|
|
IconButton(
|
|
icon: Icon(
|
|
Icons.refresh,
|
|
color: Theme.of(context).colorScheme.onPrimaryContainer,
|
|
),
|
|
onPressed: _startNetworkScan,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
|
|
// Scan progress
|
|
if (_networkScanner.isScanning)
|
|
Container(
|
|
margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
|
|
child: Column(
|
|
children: [
|
|
LinearProgressIndicator(
|
|
value: _totalToScan > 0 ? _scannedCount / _totalToScan : null,
|
|
),
|
|
const SizedBox(height: 8),
|
|
Text(
|
|
'Scanning... $_scannedCount/${_totalToScan > 0 ? _totalToScan : "?"} IPs',
|
|
style: Theme.of(context).textTheme.bodySmall,
|
|
),
|
|
],
|
|
),
|
|
),
|
|
|
|
// Server list
|
|
Expanded(
|
|
child: _networkScanner.isScanning && _discoveredServers.isEmpty
|
|
? const Center(child: CircularProgressIndicator())
|
|
: _discoveredServers.isEmpty
|
|
? Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: [
|
|
Icon(
|
|
Icons.wifi_off,
|
|
size: 64,
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.onSurfaceVariant.withValues(alpha: 0.5),
|
|
),
|
|
const SizedBox(height: 16),
|
|
Text(
|
|
'No servers found',
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onSurfaceVariant,
|
|
fontSize: 16,
|
|
),
|
|
),
|
|
const SizedBox(height: 8),
|
|
TextButton.icon(
|
|
onPressed: _startNetworkScan,
|
|
icon: const Icon(Icons.refresh),
|
|
label: const Text('Scan Again'),
|
|
),
|
|
],
|
|
),
|
|
)
|
|
: ListView.builder(
|
|
itemCount: _discoveredServers.length,
|
|
itemBuilder: (context, index) {
|
|
final server = _discoveredServers[index];
|
|
final serverKey = '${server.ipAddress}:${server.port}';
|
|
final isConnectingToThisServer =
|
|
_connectingToServerKey == serverKey;
|
|
final isAnyConnectionInProgress =
|
|
_connectingToServerKey != null;
|
|
|
|
return Container(
|
|
margin: const EdgeInsets.symmetric(
|
|
horizontal: 16,
|
|
vertical: 4,
|
|
),
|
|
decoration: BoxDecoration(
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.surfaceContainerHighest,
|
|
borderRadius: BorderRadius.circular(12),
|
|
border: Border.all(
|
|
color: isConnectingToThisServer
|
|
? Theme.of(context).colorScheme.primary
|
|
: Theme.of(
|
|
context,
|
|
).colorScheme.outline.withValues(alpha: 0.2),
|
|
width: isConnectingToThisServer ? 2 : 1,
|
|
),
|
|
),
|
|
child: ListTile(
|
|
contentPadding: const EdgeInsets.symmetric(
|
|
horizontal: 16,
|
|
vertical: 8,
|
|
),
|
|
leading: isConnectingToThisServer
|
|
? SizedBox(
|
|
width: 32,
|
|
height: 32,
|
|
child: CircularProgressIndicator(
|
|
strokeWidth: 3,
|
|
color: Theme.of(context).colorScheme.primary,
|
|
),
|
|
)
|
|
: const Icon(
|
|
Icons.wifi,
|
|
color: Colors.green,
|
|
size: 32,
|
|
),
|
|
title: Text(
|
|
server.ipAddress,
|
|
style: TextStyle(
|
|
color: Theme.of(context).colorScheme.onSurface,
|
|
fontSize: 16,
|
|
fontWeight: FontWeight.w500,
|
|
),
|
|
),
|
|
subtitle: Text(
|
|
isConnectingToThisServer
|
|
? 'Connecting...'
|
|
: 'Port ${server.port} • ${server.responseTime}ms',
|
|
style: TextStyle(
|
|
color: isConnectingToThisServer
|
|
? Theme.of(context).colorScheme.primary
|
|
: Theme.of(
|
|
context,
|
|
).colorScheme.onSurfaceVariant,
|
|
fontSize: 14,
|
|
fontWeight: isConnectingToThisServer
|
|
? FontWeight.w500
|
|
: FontWeight.normal,
|
|
),
|
|
),
|
|
trailing: isConnectingToThisServer
|
|
? null
|
|
: Icon(
|
|
Icons.chevron_right,
|
|
color: Theme.of(
|
|
context,
|
|
).colorScheme.onSurfaceVariant,
|
|
),
|
|
enabled: !isAnyConnectionInProgress,
|
|
onTap: isAnyConnectionInProgress
|
|
? null
|
|
: () async {
|
|
// Capture context-dependent objects before async operations
|
|
final connectionProvider = context
|
|
.read<ConnectionProvider>();
|
|
final appProvider = context.read<AppProvider>();
|
|
final navigator = Navigator.of(context);
|
|
final messenger = ScaffoldMessenger.of(context);
|
|
|
|
// Mark this server as connecting
|
|
setState(() {
|
|
_connectingToServerKey = serverKey;
|
|
});
|
|
|
|
try {
|
|
// Pre-verify server is still available
|
|
final isAvailable = await _networkScanner
|
|
.verifyServer(server);
|
|
if (!isAvailable) {
|
|
throw Exception(
|
|
'Server at ${server.ipAddress}:${server.port} is no longer available. '
|
|
'Please scan again to find active servers.',
|
|
);
|
|
}
|
|
|
|
await connectionProvider.connectTcp(
|
|
server.ipAddress,
|
|
server.port,
|
|
);
|
|
await appProvider.initialize();
|
|
|
|
if (mounted) {
|
|
navigator.pop();
|
|
}
|
|
} catch (e) {
|
|
// Clear connecting state on error
|
|
if (mounted) {
|
|
setState(() {
|
|
_connectingToServerKey = null;
|
|
});
|
|
|
|
// Clean up error message (remove "Exception: " prefix)
|
|
String errorMessage = e.toString();
|
|
if (errorMessage.startsWith(
|
|
'Exception: ',
|
|
)) {
|
|
errorMessage = errorMessage.substring(
|
|
'Exception: '.length,
|
|
);
|
|
}
|
|
if (errorMessage.startsWith(
|
|
'Connection failed: Exception: ',
|
|
)) {
|
|
errorMessage = errorMessage.substring(
|
|
'Connection failed: Exception: '.length,
|
|
);
|
|
} else if (errorMessage.startsWith(
|
|
'Connection failed: ',
|
|
)) {
|
|
errorMessage = errorMessage.substring(
|
|
'Connection failed: '.length,
|
|
);
|
|
}
|
|
|
|
messenger.showSnackBar(
|
|
SnackBar(
|
|
content: Text(errorMessage),
|
|
backgroundColor: Colors.red,
|
|
duration: const Duration(seconds: 5),
|
|
),
|
|
);
|
|
}
|
|
}
|
|
},
|
|
),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
|
|
Widget _buildUsbTab(ConnectionProvider connectionProvider) {
|
|
return _UsbDeviceList(
|
|
onConnected: () {
|
|
if (mounted) Navigator.of(context).pop();
|
|
},
|
|
);
|
|
}
|
|
}
|
|
|
|
class _UsbDeviceList extends StatefulWidget {
|
|
final VoidCallback onConnected;
|
|
|
|
const _UsbDeviceList({required this.onConnected});
|
|
|
|
@override
|
|
State<_UsbDeviceList> createState() => _UsbDeviceListState();
|
|
}
|
|
|
|
class _UsbDeviceListState extends State<_UsbDeviceList> {
|
|
List<UsbDevice> _devices = [];
|
|
bool _isScanning = false;
|
|
bool _isConnecting = false;
|
|
|
|
@override
|
|
void initState() {
|
|
super.initState();
|
|
if (defaultTargetPlatform == TargetPlatform.android) {
|
|
_scanDevices();
|
|
}
|
|
}
|
|
|
|
Future<void> _scanDevices() async {
|
|
setState(() => _isScanning = true);
|
|
try {
|
|
final devices = await UsbSerial.listDevices();
|
|
if (!mounted) return;
|
|
setState(() {
|
|
_devices = devices;
|
|
_isScanning = false;
|
|
});
|
|
} catch (e) {
|
|
if (!mounted) return;
|
|
setState(() {
|
|
_devices = [];
|
|
_isScanning = false;
|
|
});
|
|
}
|
|
}
|
|
|
|
Future<void> _connectToDevice(UsbDevice device) async {
|
|
setState(() => _isConnecting = true);
|
|
try {
|
|
final connectionProvider = context.read<ConnectionProvider>();
|
|
final service = MeshCoreSerialService(appName: 'MeshCore SAR');
|
|
|
|
final port = await device.create();
|
|
if (port == null) {
|
|
if (mounted) {
|
|
setState(() => _isConnecting = false);
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(content: Text('Failed to create USB port')),
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
final opened = await port.open();
|
|
if (!opened) {
|
|
if (mounted) {
|
|
setState(() => _isConnecting = false);
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(content: Text('Failed to open USB port')),
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
await port.setDTR(true);
|
|
await port.setRTS(true);
|
|
await port.setPortParameters(
|
|
115200,
|
|
UsbPort.DATABITS_8,
|
|
UsbPort.STOPBITS_1,
|
|
UsbPort.PARITY_NONE,
|
|
);
|
|
|
|
service.writeRaw = (data) async {
|
|
await port.write(data);
|
|
};
|
|
|
|
port.inputStream?.listen(
|
|
(data) => service.feedRawBytes(data),
|
|
onError: (_) {
|
|
service.markDisconnected();
|
|
port.close();
|
|
},
|
|
onDone: () {
|
|
service.markDisconnected();
|
|
},
|
|
);
|
|
|
|
final sessionOk = await service.markConnected();
|
|
if (!sessionOk) {
|
|
await port.close();
|
|
if (mounted) {
|
|
setState(() => _isConnecting = false);
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(content: Text('USB session initialization failed')),
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
final success = await connectionProvider.connectSerial(service);
|
|
if (!mounted) return;
|
|
|
|
if (success) {
|
|
widget.onConnected();
|
|
} else {
|
|
await port.close();
|
|
if (!mounted) return;
|
|
setState(() => _isConnecting = false);
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
const SnackBar(content: Text('Failed to connect via USB')),
|
|
);
|
|
}
|
|
} catch (e) {
|
|
if (!mounted) return;
|
|
setState(() => _isConnecting = false);
|
|
ScaffoldMessenger.of(context).showSnackBar(
|
|
SnackBar(content: Text('USB error: $e')),
|
|
);
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
if (defaultTargetPlatform != TargetPlatform.android) {
|
|
return Center(
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(24),
|
|
child: Text(
|
|
kIsWeb
|
|
? 'Web Serial is not yet supported.\nUse BLE or Network instead.'
|
|
: 'USB serial is available on Android only.\nConnect via OTG cable.',
|
|
textAlign: TextAlign.center,
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
if (_isScanning) {
|
|
return const Center(child: CircularProgressIndicator());
|
|
}
|
|
|
|
return Column(
|
|
children: [
|
|
Padding(
|
|
padding: const EdgeInsets.all(12),
|
|
child: OutlinedButton.icon(
|
|
onPressed: _isConnecting ? null : _scanDevices,
|
|
icon: const Icon(Icons.refresh),
|
|
label: const Text('Scan USB devices'),
|
|
),
|
|
),
|
|
if (_devices.isEmpty)
|
|
const Expanded(
|
|
child: Center(
|
|
child: Text(
|
|
'No USB serial devices found.\nConnect a MeshCore device via OTG cable.',
|
|
textAlign: TextAlign.center,
|
|
),
|
|
),
|
|
)
|
|
else
|
|
Expanded(
|
|
child: ListView.builder(
|
|
itemCount: _devices.length,
|
|
itemBuilder: (context, index) {
|
|
final device = _devices[index];
|
|
return ListTile(
|
|
leading: const Icon(Icons.usb),
|
|
title: Text(device.productName ?? 'USB Device'),
|
|
subtitle: Text(device.manufacturerName ?? ''),
|
|
trailing: _isConnecting
|
|
? const SizedBox(
|
|
width: 20,
|
|
height: 20,
|
|
child: CircularProgressIndicator(strokeWidth: 2),
|
|
)
|
|
: const Icon(Icons.chevron_right),
|
|
onTap: _isConnecting ? null : () => _connectToDevice(device),
|
|
);
|
|
},
|
|
),
|
|
),
|
|
],
|
|
);
|
|
}
|
|
}
|