private void DisplayNonModal(ObservableObject viewModel, string title)
{
Type viewModelType = viewModel.GetType();
PopupAssociatedViewAttribute attribute = viewModelType.GetCustomAttributes <PopupAssociatedViewAttribute>().FirstOrDefault();
if (attribute == null)
{
throw new InvalidOperationException($"PopupAssociatedViewAttribute not found on {viewModelType}.");
}
FrameworkElement view = Activator.CreateInstance(attribute.ViewType) as FrameworkElement;
if (view == null)
{
throw new InvalidOperationException($"Cannot create {attribute.ViewType} instance.");
}
view.DataContext = viewModel;
PopupWindow modalPopupWindow = new PopupWindow
{
Owner = _mainWindow,
Title = title,
PopupContentPresenter =
{
Content = view
}
};
modalPopupWindow.Closed += (sender, args) => _mainWindow.IsEnabled = true;
_mainWindow.IsEnabled = false;
modalPopupWindow.Show(); // TODO: ShowDialog ?
}
private FrameworkElement CreatePopupView(ObservableObject viewModel)
{
Type viewModelType = viewModel.GetType();
// Search in registered view-viewmodel
Type viewType;
if (!_associatedViewsByViewModels.TryGetValue(viewModelType, out viewType))
// if not found in registered view-viewmodel, search attribute
{
PopupAssociatedViewAttribute attribute = viewModelType.GetCustomAttributes <PopupAssociatedViewAttribute>().FirstOrDefault();
if (attribute == null)
{
throw new InvalidOperationException($"PopupAssociatedView attribute not found on {viewModelType}.");
}
//// Search ClosePopupCommandAttribute and hook command
//Type iCommandType = typeof(ICommand);
//IEnumerable<FieldInfo> closeCommandFields = viewModelType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance).Where(x => x.GetCustomAttributes<ClosePopupCommandAttribute>().Any() && x.FieldType == iCommandType); // TODO: inheriting from ICommand ?
//foreach (FieldInfo fieldInfo in closeCommandFields)
//{
// ClosePopupCommandAttribute closePopupCommandAttribute = fieldInfo.GetCustomAttributes<ClosePopupCommandAttribute>().FirstOrDefault();
// PropertyInfo relatedProperty = viewModelType.GetProperty(closePopupCommandAttribute.RelatedProperty);
// ICommand originalCommand = relatedProperty.GetValue(viewModel) as ICommand;
// // TODO: check if RelayCommand<T>
// ICommand closedCommand = new RelayCommand<object>(o =>
// {
// Close(viewModel);
// originalCommand.Execute(o);
// });
// fieldInfo.SetValue(viewModel, closedCommand);
//}
//
viewType = attribute.ViewType;
}
FrameworkElement view = Activator.CreateInstance(viewType) as FrameworkElement;
if (view == null)
{
throw new InvalidOperationException($"Popup {viewType} instance is not a valid FrameworkElement.");
}
view.DataContext = viewModel;
return(view);
}
