nativemind_call 0.1.1

Native media layer of NativeMind calls on Andrey Bekhtold's handmade WebRTC code (Android PeerConnectionClient, iOS WebRTCManager, the WebRTCClientType configuration, Debug.swift): video through Flutt [...]

example/lib/main.dart

// Harness of nativemind_call: Andrey Bekhtold's loopback call (CallFragment.setupWebRTC: peer A sends the camera,
// peer B receives) in one process, shown through NmNativeCallPort.videoTile — the local tile is A's texture, the
// remote tile is the video B received over WebRTC. `--dart-define=NM_AUTOSTART=true` starts the call at launch.
// written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
import 'package:flutter/material.dart';
import 'package:nativemind_call/nativemind_call.dart';
import 'package:nativemind_deals/nativemind_deals.dart';

// written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
void main() => runApp(const MaterialApp(debugShowCheckedModeBanner: false, home: LoopbackPage()));

/// The loopback screen.
// written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
class LoopbackPage extends StatefulWidget {
  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  const LoopbackPage({super.key, this.call});

  /// Engine (tests inject one over a fake host).
  final NmNativeCall? call;

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  @override
  State<LoopbackPage> createState() => _LoopbackPageState();
}

// written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
class _LoopbackPageState extends State<LoopbackPage> {
  NmLoopbackCall? _loopback;
  NmNativeCallPort? _port;
  bool _audio = false;
  String _status = 'idle';

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  NmNativeCall get _call => widget.call ?? NmNativeCall.instance;

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  @override
  void initState() {
    super.initState();
    if (const bool.fromEnvironment('NM_AUTOSTART')) WidgetsBinding.instance.addPostFrameCallback((_) => _start());
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  Future<void> _start() async {
    if (_loopback != null) return;
    setState(() => _status = 'permissions…');
    final granted = await _call.requestPermissions();
    if (!granted) {
      if (mounted) setState(() => _status = 'camera / microphone permission denied');
      return;
    }
    final loopback = NmLoopbackCall(call: _call);
    await loopback.setupWebRTC();
    // Loudspeaker loop: A's microphone would play on B — start muted.
    await loopback.peerA.setAudioEnabled(_audio);
    loopback.peerB.iceConnectionState.addListener(() {
      if (mounted) setState(() => _status = 'B: ${loopback.peerB.iceConnectionState.value}');
    });
    if (!mounted) return;
    setState(() {
      _loopback = loopback;
      _port = NmNativeCallPort(
        client: loopback.peerA,
        remoteClient: loopback.peerB,
        activeCall: const NmCallInfo(clientName: 'A', expertName: 'B'),
        onAccept: () async {},
        onHangUp: _stop,
        call: _call,
      );
      _status = 'offer sent';
    });
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  Future<void> _stop() async {
    final loopback = _loopback;
    if (loopback == null) return;
    setState(() {
      _loopback = null;
      _port = null;
      _status = 'idle';
    });
    await loopback.dispose();
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  Future<void> _toggleAudio() async {
    setState(() => _audio = !_audio);
    await _loopback?.peerA.setAudioEnabled(_audio);
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  @override
  void dispose() {
    _loopback?.dispose();
    super.dispose();
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  Widget _tile(String label, NmCallTile tile) {
    final port = _port;
    return Expanded(
      child: Container(
        margin: const EdgeInsets.all(8),
        decoration: BoxDecoration(color: Colors.black12, borderRadius: BorderRadius.circular(16)),
        clipBehavior: Clip.antiAlias,
        child: Stack(
          fit: StackFit.expand,
          children: [
            if (port != null) port.videoTile(context, tile) else const NmNoVideoWidget(),
            Positioned(
              left: 12,
              top: 8,
              child: Text(
                label,
                style: const TextStyle(color: Colors.white, fontWeight: FontWeight.w600, shadows: [Shadow(blurRadius: 4)]),
              ),
            ),
          ],
        ),
      ),
    );
  }

  // written by Claude Code (generated by Claude Code), 2026-10-13; SDD: flows/sdd-widgets-handmade
  @override
  Widget build(BuildContext context) => Scaffold(
    appBar: AppBar(title: const Text('nativemind_call · loopback')),
    body: SafeArea(
      child: Column(
        children: [
          _tile('A — camera (local tile)', NmCallTile.local),
          _tile('B — received over WebRTC (remote tile)', NmCallTile.remote),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 16),
            child: Text(_status, key: const Key('status')),
          ),
          Padding(
            padding: const EdgeInsets.all(12),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
              children: [
                FilledButton(key: const Key('start'), onPressed: _loopback == null ? _start : null, child: const Text('Start')),
                OutlinedButton(onPressed: _loopback == null ? null : _toggleAudio, child: Text(_audio ? 'Mute mic' : 'Unmute mic')),
                OutlinedButton(key: const Key('stop'), onPressed: _loopback == null ? null : () => _port?.hangUp(), child: const Text('Stop')),
              ],
            ),
          ),
        ],
      ),
    ),
  );
}