meshcore-open/lib/widgets/debug_frame_viewer.dart
zach e7a5b9e209 Initial commit: MeshCore Open Flutter client
Open-source Flutter client for MeshCore LoRa mesh networking devices.

Features:
- BLE device scanning and connection
- Nordic UART Service (NUS) integration
- Material 3 design with system theme support
- Provider-based state management
- Placeholder screens for chat, contacts, and settings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2025-12-26 11:42:02 -07:00

68 lines
2.3 KiB
Dart

import 'dart:typed_data';
import 'package:flutter/material.dart';
import '../connector/meshcore_protocol.dart';
/// Debug widget to show the hex dump of a frame
class DebugFrameViewer {
static void showFrameDebug(BuildContext context, Uint8List frame, String title) {
final hexString = frame
.map((b) => b.toRadixString(16).padLeft(2, '0'))
.join(' ');
final details = StringBuffer();
details.writeln('Frame Length: ${frame.length} bytes\n');
details.writeln('Command: 0x${frame[0].toRadixString(16).padLeft(2, '0')}');
if (frame[0] == cmdSendTxtMsg && frame.length > 37) {
details.writeln('\nText Message Frame:');
details.writeln('- Destination PubKey: ${pubKeyToHex(frame.sublist(1, 33))}');
details.writeln('- Timestamp: ${readUint32LE(frame, 33)}');
details.writeln('- Flags: 0x${frame[37].toRadixString(16).padLeft(2, '0')}');
final txtType = (frame[37] >> 2) & 0x03;
details.writeln('- Text Type: $txtType ${txtType == txtTypeCliData ? "(CLI)" : "(Plain)"}');
if (frame.length > 38) {
final textBytes = frame.sublist(38);
final nullIdx = textBytes.indexOf(0);
final text = String.fromCharCodes(
nullIdx >= 0 ? textBytes.sublist(0, nullIdx) : textBytes
);
details.writeln('- Text: "$text"');
}
}
showDialog(
context: context,
builder: (context) => AlertDialog(
title: Text(title),
content: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text(
details.toString(),
style: const TextStyle(fontFamily: 'monospace', fontSize: 12),
),
const Divider(),
const Text(
'Hex Dump:',
style: TextStyle(fontWeight: FontWeight.bold),
),
const SizedBox(height: 8),
Text(
hexString,
style: const TextStyle(fontFamily: 'monospace', fontSize: 11),
),
],
),
),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Close'),
),
],
),
);
}
}