public MainViewModel(IPromptService promptService,
IEventAggregator eventAggregator,
Func<FileSelectionViewModel> fileSelectionViewModelfactory,
Func<OkCancelPanelViewModel> okCancelViewModelfactory)
{
string selectedPath = null;
SelectFilesCommand = new DelegateCommand<object>(o =>
{
selectedPath = promptService.ShowFolderBrowserDialogue();
if (string.IsNullOrEmpty(selectedPath)) return;
FileSelection = fileSelectionViewModelfactory();
FileSelection.LoadFiles(selectedPath);
OkCancelPanel = okCancelViewModelfactory();
});
eventAggregator.Subscribe<CleanUpFilesMessage>(this, message =>
{
try
{
if(FileSelection == null) return;
FileSelection.CleanUpFiles(selectedPath);
}
catch (UnauthorizedAccessException exception)
{
var errorMessage = string.Format("Failed to clean up files. {0} " +
"This may be due to the file being marked as 'Read Only'",
exception.Message);
promptService.ShowError(errorMessage);
}
ClearFileSelection();
});
eventAggregator.Subscribe<ClearFileSelectionMessage>(this, message =>
ClearFileSelection());
}
