public AvaloniaDesigner(DesignerConfiguration config)
{
_host = new ProcessHost(config);
_host.SpawnedProcess += proc => SpawnedProcess?.Invoke(proc);
InitializeComponent();
BindingOperations.SetBinding(State, TextBox.TextProperty,
new Binding(nameof(ProcessHost.State))
{
Source = _host, Mode = BindingMode.OneWay
});
_host.PropertyChanged += _host_PropertyChanged;
DesignerView.DataContext = new HostedAppModel(_host);
}
public void Start(string targetExe, string xaml, string sourceAssembly)
{
_xaml = new UpdateXamlMessage {
Xaml = xaml, AssemblyPath = sourceAssembly
};
if (_proc != null)
{
_proc.Exited -= OnExited;
try
{
_conn?.Dispose();
_conn = null;
_proc.Kill();
}
catch { }
HandleExited();
State = "Restarting...";
}
var netCore = false;
var targetDir = Path.GetDirectoryName(targetExe);
var targetBase = Path.Combine(targetDir,
Path.GetFileNameWithoutExtension(targetExe));
var depsJsonPath = targetBase + ".deps.json";
netCore = File.Exists(depsJsonPath) &&
DepsJson.Load(depsJsonPath)?.RuntimeTarget?.Name?.Contains("NETCoreApp") == true;
var sessionId = Guid.NewGuid().ToString();
DesignerTcpListener.Register(this, sessionId);
var cmdline =
$"--transport tcp-bson://127.0.0.1:{DesignerTcpListener.Port}/ --session-id {sessionId} --method win32 \"{targetExe}\"";
if (netCore)
{
cmdline =
$"exec --runtimeconfig \"{targetBase}.runtimeconfig.json\" --depsfile \"{depsJsonPath}\" \"{_config.NetCoreAppHostPath}\" " +
cmdline;
}
var exe = netCore ? "dotnet" : _config.NetFxAppHostPath;
_proc = new Process()
{
StartInfo = new ProcessStartInfo(exe, cmdline)
{
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
CreateNoWindow = true,
WorkingDirectory = targetDir
},
EnableRaisingEvents = true
};
_proc.Exited += OnExited;
try
{
_proc.Start();
SpawnedProcess?.Invoke(_proc);
State = "Launching designer process: " + Environment.NewLine
+ exe + " " + cmdline + Environment.NewLine + "from directory " + targetDir;
StartReaders(_proc);
}
catch (Exception e)
{
State = e.ToString();
HandleExited();
}
IsAlive = true;
}