private void DeviceRemoved(object sender, INTV.Shared.Interop.DeviceManagement.DeviceChangeEventArgs e)
{
if (e.Type == INTV.Core.Model.Device.ConnectionType.Serial)
{
var removedDevice = AvailableSerialPorts.FirstOrDefault(p => p.PortName == e.Name);
if (DeviceChange.IsDeviceChangeFromSystem(e.State))
{
if ((removedDevice != null) && AvailableSerialPorts.Remove(removedDevice))
{
INTV.Shared.ComponentModel.CommandManager.InvalidateRequerySuggested();
}
}
else
{
// Removal may also indicate that the device is not valid for use by the party responsible for showing the dialog.
// In such a case, disable the item.
if ((removedDevice != null) && !DisabledSerialPorts.Contains(e.Name))
{
removedDevice.IsSelectable = false;
DisabledSerialPorts.Add(e.Name);
INTV.Shared.ComponentModel.CommandManager.InvalidateRequerySuggested();
}
}
}
}
/// <summary>
/// Initializes a new instances of SerialPortSelectorViewModel.
/// </summary>
/// <param name="prompt">The prompt to display in the port selection area.</param>
/// <param name="availablePorts">The available ports.</param>
/// <param name="disabledPorts">Non-selectable ports.</param>
/// <param name="selectedSerialPort">The currently selected port.</param>
/// <param name="baudRates">Available baud rates to choose from.</param>
/// <param name="defaultBaudRate">The default baud rate.</param>
/// <param name="checkPortAvailability">If <c>true</c>, check the port to see if it is already in use before adding it to the selection list.</param>
/// <param name="inclusionFilter">If <c>null</c> or it returns <c>true</c>, ports from all available ports are included.</param>
public SerialPortSelectorViewModel(string prompt, IEnumerable <string> availablePorts, IEnumerable <string> disabledPorts, string selectedSerialPort, IEnumerable <int> baudRates, int defaultBaudRate, bool checkPortAvailability, Predicate <IConnection> inclusionFilter)
{
InclusionFilter = inclusionFilter;
if (!string.IsNullOrWhiteSpace(prompt))
{
Prompt = prompt;
}
else
{
Prompt = Resources.Strings.SelectSerialPortDialog_Message;
}
if (baudRates == null)
{
BaudRates = new ObservableCollection <BaudRateViewModel>(new[] { new BaudRateViewModel(defaultBaudRate) });
}
else
{
BaudRates = new ObservableCollection <BaudRateViewModel>(baudRates.Select(r => new BaudRateViewModel(r)));
}
var ports = availablePorts;
if ((ports == null) || !ports.Any())
{
ports = inclusionFilter == null ? SerialPortConnection.AvailablePorts : SerialPortConnection.GetAvailablePorts(inclusionFilter);
}
if (ports != null)
{
AvailableSerialPorts = new ObservableCollection <SerialPortViewModel>(ports.OrderBy(p => p).Select(p => new SerialPortViewModel(p)));
}
else
{
AvailableSerialPorts = new ObservableCollection <SerialPortViewModel>();
}
if (disabledPorts == null)
{
DisabledSerialPorts = new ObservableCollection <string>();
}
else
{
DisabledSerialPorts = new ObservableCollection <string>(disabledPorts);
}
if (checkPortAvailability)
{
var portsInUse = INTV.Shared.Model.Device.SerialPortConnection.PortsInUse;
foreach (var portInUse in portsInUse.Where(p => (InclusionFilter == null) || InclusionFilter(Connection.CreatePseudoConnection(p, ConnectionType.Serial))))
{
DisabledSerialPorts.Add(portInUse);
}
}
foreach (var disabledPort in DisabledSerialPorts.Where(p => (InclusionFilter == null) || InclusionFilter(Connection.CreatePseudoConnection(p, ConnectionType.Serial))).OrderBy(p => p).Reverse())
{
var viewModel = AvailableSerialPorts.FirstOrDefault(p => p.PortName == disabledPort);
if (viewModel == null)
{
viewModel = new SerialPortViewModel(disabledPort, false);
}
else
{
viewModel.IsSelectable = false;
AvailableSerialPorts.Remove(viewModel);
}
if (AvailableSerialPorts.Count == 0)
{
AvailableSerialPorts.Add(viewModel);
}
else
{
AvailableSerialPorts.Insert(0, viewModel);
}
}
_selectedSerialPort = selectedSerialPort;
_selectedSerialPortViewModel = AvailableSerialPorts.FirstOrDefault(p => p.PortName == _selectedSerialPort);
DefaultBaudRate = defaultBaudRate;
_selectedBaudRate = defaultBaudRate;
_selectedBaudRateViewModel = BaudRates.FirstOrDefault(b => b.BaudRate == defaultBaudRate);
INTV.Shared.Interop.DeviceManagement.DeviceChange.DeviceAdded += DeviceAdded;
INTV.Shared.Interop.DeviceManagement.DeviceChange.DeviceRemoved += DeviceRemoved;
}