/// <summary>
/// Displays a modal dialog of a type that is determined by the dialog type locater.
/// </summary>
/// <param name="ownerViewModel">A view model that represents the owner window of the dialog.</param>
/// <param name="viewModel">The view model of the new dialog.</param>
/// <returns>
/// A nullable value of type <see cref="T:System.Boolean" /> that signifies how a window was closed by
/// the user.
/// </returns>
public new bool?ShowDialog(INotifyPropertyChanged ownerViewModel, IModalDialogViewModel viewModel)
{
StatusUpdate.IsPopUpOpen = true;
bool?result = base.ShowDialog(ownerViewModel, viewModel);
StatusUpdate.IsPopUpOpen = false;
return(result);
}
private bool?ShowDialog(
INotifyPropertyChanged ownerViewModel,
IModalDialogViewModel viewModel,
Type dialogType)
{
Window dialog = CreateDialog(dialogType, ownerViewModel, viewModel);
PropertyChangedEventHandler handler = RegisterDialogResult(dialog, viewModel);
dialog.ShowDialog();
UnregisterDialogResult(viewModel, handler);
return(viewModel.DialogResult);
}
public virtual void Init()
{
_modalDialogViewModel = GetModalDialogViewModel();
ConfirmCommand = new DelegateCommand(
Confirm,
CheckCanConfirmCommandExecute);
CancelCommand = new DelegateCommand(
Cancel,
CheckCanCancelCommandExecute);
OnInit();
}
private bool?ShowDialog(
INotifyPropertyChanged ownerViewModel,
IModalDialogViewModel viewModel,
Type dialogType)
{
Logger.Write($"Dialog: {dialogType}; View model: {viewModel.GetType()}; Owner: {ownerViewModel.GetType()}");
IWindow dialog = CreateDialog(dialogType, ownerViewModel, viewModel);
PropertyChangedEventHandler handler = RegisterDialogResult(dialog, viewModel);
dialog.ShowDialog();
UnregisterDialogResult(viewModel, handler);
return(viewModel.DialogResult);
}
/// <summary>
/// Displays a custom modal dialog of specified type <typeparamref name="T"/>.
/// </summary>
/// <param name="ownerViewModel">
/// A view model that represents the owner window of the custom dialog.
/// </param>
/// <param name="viewModel">The view model of the new custom dialog.</param>
/// <typeparam name="T">The type of the custom dialog to show.</typeparam>
/// <returns>
/// A nullable value of type <see cref="bool"/> that signifies how a window was closed by
/// the user.
/// </returns>
/// <exception cref="ViewNotRegisteredException">
/// No view is registered with specified owner view model as data context.
/// </exception>
public bool?ShowCustomDialog <T>(
INotifyPropertyChanged ownerViewModel,
IModalDialogViewModel viewModel)
where T : IWindow
{
if (ownerViewModel == null)
{
throw new ArgumentNullException(nameof(ownerViewModel));
}
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
return(ShowDialog(ownerViewModel, viewModel, typeof(T)));
}
private static PropertyChangedEventHandler RegisterDialogResult(
Window dialog,
IModalDialogViewModel viewModel)
{
PropertyChangedEventHandler handler = (sender, e) =>
{
if (e.PropertyName == DialogResultPropertyName)
{
dialog.DialogResult = viewModel.DialogResult;
}
};
viewModel.PropertyChanged += handler;
return(handler);
}
private static PropertyChangedEventHandler RegisterDialogResult(
IWindow dialog,
IModalDialogViewModel viewModel)
{
PropertyChangedEventHandler handler = (sender, e) =>
{
if (e.PropertyName == DialogResultPropertyName && dialog.DialogResult != viewModel.DialogResult)
{
Logger.Write($"Dialog: {dialog.GetType()}; Result: {viewModel.DialogResult}");
dialog.DialogResult = viewModel.DialogResult;
}
};
viewModel.PropertyChanged += handler;
return(handler);
}
/// <summary>
/// Displays a modal dialog of a type that is determined by the dialog type locator.
/// </summary>
/// <param name="ownerViewModel">
/// A view model that represents the owner window of the dialog.
/// </param>
/// <param name="viewModel">The view model of the new dialog.</param>
/// <returns>
/// A nullable value of type <see cref="bool"/> that signifies how a window was closed by
/// the user.
/// </returns>
/// <exception cref="ViewNotRegisteredException">
/// No view is registered with specified owner view model as data context.
/// </exception>
public bool?ShowDialog(
INotifyPropertyChanged ownerViewModel,
IModalDialogViewModel viewModel)
{
if (ownerViewModel == null)
{
throw new ArgumentNullException(nameof(ownerViewModel));
}
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
Type dialogType = dialogTypeLocator.Locate(viewModel);
return(ShowDialog(ownerViewModel, viewModel, dialogType));
}
private static PropertyChangedEventHandler RegisterDialogResult(
IWindow dialog,
IModalDialogViewModel viewModel)
{
void Handler(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == DialogResultPropertyName && dialog.DialogResult != viewModel.DialogResult)
{
Logger.Write($"Dialog: {dialog.GetType()}; Result: {viewModel.DialogResult}");
dialog.DialogResult = viewModel.DialogResult;
}
}
viewModel.PropertyChanged += Handler;
return(Handler);
}
private static PropertyChangedEventHandler RegisterDialogResult(
Window dialog,
IModalDialogViewModel viewModel)
{
PropertyChangedEventHandler handler = (sender, e) =>
{
if (e.PropertyName == DialogResultPropertyName && dialog.DialogResult != viewModel.DialogResult)
{
Logger.Write("Dialog: {0}; Result: {1}".InvariantFormat(dialog.GetType(), viewModel.DialogResult));
dialog.DialogResult = viewModel.DialogResult;
}
};
viewModel.PropertyChanged += handler;
return(handler);
}
private bool?ShowDialog(
INotifyPropertyChanged ownerViewModel,
IModalDialogViewModel viewModel,
Type dialogType)
{
Logger.Write("Dialog: {0}; View model: {1}; Owner: {2}"
.InvariantFormat(
dialogType,
viewModel.GetType(),
ownerViewModel.GetType()));
Window dialog = CreateDialog(dialogType, ownerViewModel, viewModel);
PropertyChangedEventHandler handler = RegisterDialogResult(dialog, viewModel);
dialog.ShowDialog();
UnregisterDialogResult(viewModel, handler);
return(viewModel.DialogResult);
}
private static void UnregisterDialogResult(
IModalDialogViewModel viewModel,
PropertyChangedEventHandler handler)
{
viewModel.PropertyChanged -= handler;
}
public bool?ShowDialog(INotifyPropertyChanged ownerViewModel, IModalDialogViewModel viewModel)
{
throw new NotImplementedException();
}
public bool?ShowDialog <[NullableAttribute(0)] T>(INotifyPropertyChanged ownerViewModel, IModalDialogViewModel viewModel) where T : System.Windows.Window
{
throw new NotImplementedException();
}
