private void OnCurrentModifiedAppointmentChanged(AppointmentModifications newModifiedAppointment)
{
if (newModifiedAppointment == null || appointment != newModifiedAppointment.OriginalAppointment)
{
OperatingMode = OperatingMode.View;
CurrentAppointmentModifications.PropertyChanged -= OnAppointmentModificationsPropertyChanged;
appointmentModificationsVariable.StateChanged -= OnCurrentModifiedAppointmentChanged;
}
}
private void OnDrop(object sender, DragEventArgs dragEventArgs)
{
if (dropIsPossible)
{
Time newBeginTime;
Time newEndTime;
CalculateCorrectAppointmentPosition(dragEventArgs, out newBeginTime, out newEndTime);
AppointmentModifications.SetNewLocation(TherapyPlaceRowIdentifier, newBeginTime, newEndTime);
}
}
private void OnAppointmentModificationsVariableChanged(AppointmentModifications newAppointmentModifications)
{
if (newAppointmentModifications == null)
{
currentButtonMode = ButtonMode.ViewMode;
}
else
{
currentButtonMode = ButtonMode.StartOfEditMode;
currentAppointmentModifications = newAppointmentModifications;
currentAppointmentModifications.PropertyChanged += OnCurrentAppointmentModificationsChanged;
}
((Command)Undo).RaiseCanExecuteChanged();
((Command)Redo).RaiseCanExecuteChanged();
}
public UndoRedoViewModel(IViewModelCommunication viewModelCommunication,
ISharedState <AppointmentModifications> appointmentModificationsVariable,
ISession session,
Action <string> errorCallback)
{
this.viewModelCommunication = viewModelCommunication;
this.appointmentModificationsVariable = appointmentModificationsVariable;
this.session = session;
this.errorCallback = errorCallback;
currentButtonMode = ButtonMode.ViewMode;
currentAppointmentModifications = null;
Undo = new Command(UndoAction, UndoPossible);
Redo = new Command(RedoAction, RedoPossible);
appointmentModificationsVariable.StateChanged += OnAppointmentModificationsVariableChanged;
session.UndoPossibleChanged += OnUndoPossibleChanged;
session.RedoPossibleChanged += OnRedoPossibleChanged;
}
private void OnCurrentModifiedAppointmentVariableChanged(AppointmentModifications appointmentModifications)
{
ChangeConfirmationVisible = appointmentModifications != null;
UpdateAddAppointmentPossible();
}
private void OnAppointmentModificationsChanged(AppointmentModifications newAppointmentModifications)
{
AppointmentModifications = newAppointmentModifications;
}
private void OnAppointmentModificationVariableChanged(AppointmentModifications appointmentModifications)
{
PracticeIsSelectable = appointmentModifications == null;
}
