public async Task <IPictureGridViewModel> LoadAPictureGridViewModel(string folderPath, List <string> searchPatterns)
{
// Check if folder is already opened.
//todo: think about if user opens the same folder but with different search patterns
var pictureGridViewModel = PictureGridViewModels.ToList().Find(picGrid =>
((PictureGridViewModel)picGrid).AbsolutePath == folderPath);
if (pictureGridViewModel == null)
{
var pictureFileNames = await _fileService.GetFileNamesFromDirectoryAsync(folderPath, searchPatterns);
pictureGridViewModel = _pictureGridViewModelCreator();
PictureGridViewModels.Add(pictureGridViewModel);
if (pictureFileNames.Count > 0)
{
pictureGridViewModel.Load(pictureFileNames);
}
else
{
pictureGridViewModel.LoadEmptyFolder(folderPath);
}
}
return(pictureGridViewModel);
}
public IPictureGridViewModel LoadAPictureGridViewModel(List <string> pictureFileNames)
{
// Check if folder is already opened.
var pictureGridViewModel = PictureGridViewModels.ToList().Find(picGrid =>
((PictureGridViewModel)picGrid).AbsolutePath == pictureFileNames.First().ToParentFolderPath());
if (pictureGridViewModel == null)
{
pictureGridViewModel = _pictureGridViewModelCreator();
PictureGridViewModels.Add(pictureGridViewModel);
pictureGridViewModel.Load(pictureFileNames);
}
else
{
// Remove any duplicates.
pictureFileNames.RemoveAll(fileName => PictureGridViewModels.ToList()
.Exists(gridViewModel => gridViewModel.Pictures.ToList()
.Exists(pic => pic.FullFileName == fileName)));
if (pictureFileNames.Count > 0)
{
pictureGridViewModel.Load(pictureFileNames);
}
else
{
pictureGridViewModel = SelectedPictureGridViewModel;
}
}
return(pictureGridViewModel);
}