private void Devices_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
var added = ((IAudioDevice)e.NewItems[0]);
var allExistingAdded = AllDevices.FirstOrDefault(d => d.Id == added.Id);
if (allExistingAdded == null)
{
AddDevice(added);
}
break;
case NotifyCollectionChangedAction.Remove:
var removed = ((IAudioDevice)e.OldItems[0]).Id;
var allExisting = AllDevices.FirstOrDefault(d => d.Id == removed);
if (allExisting != null)
{
AllDevices.Remove(allExisting);
}
break;
case NotifyCollectionChangedAction.Reset:
AllDevices.Clear();
foreach (var device in _deviceManager.Devices)
{
AddDevice(device);
}
break;
default:
throw new NotImplementedException();
}
}
public DevicesListViewModel(IDeviceRelatedRepository repo, IUserSession userSession)
{
Repository = repo;
UserSession = userSession;
AllDevices = Repository.AllDevices.ToList();
InitDevicesLocationWithInstances();
FilterDevicesAccordingToCriteria();
ShowAddDeviceViewCommand = RegisterCommandAction(
(obj) =>
{
AddDeviceView = new AddDeviceView();
AddDeviceView.DataContext = ResolveDependency <IAddDeviceViewModel>();
AddDeviceView.ShowDialog();
},
(obj) =>
UserSession.IsAuthorizedUserAllowedTo(UserActions.AddDevice)
);
RemoveDeviceCommand = RegisterCommandAction(
(obj) =>
{
Repository.RemoveDevice(SelectedDevice);
Repository.DeleteAllDeviceMovementHistory(SelectedDevice);
Repository.SaveChanges();
AllDevices.Remove(AllDevices.Find(d => d.ID == SelectedDevice.ID));
FilteredDevices.Remove(SelectedDevice);
},
(obj) =>
{
if (UserSession.IsAuthorizedUserAllowedTo(UserActions.RemoveDevice))
{
return(SelectedDevice != null);
}
else
{
return(false);
}
}
);
SubscribeActionOnDeviceAddition(
(device) =>
{
device.DeviceType = Repository.AllDeviceTypes.Single(dt => dt.ID == device.DeviceTypeID);
device.Cabinet = Repository.FindCabinet(device.CabinetID);
device.Cabinet.Housing = DeviceLocationViewModel.
AllHousings.
First(h => h.ID == device.Cabinet.HousingID);
AllDevices.Add(device);
if (DevicesFilter.DoesMeetSearchingAndFilteringCriteria(device))
{
FilteredDevices.Add(device);
}
}
);
SubscribeActionOnFilteringCriteraChanges(
(filteredDevices) =>
FilteredDevices = filteredDevices.ToObservableCollection()
);
}