public PicturesViewModel()
{
PreviousFolder = new UiCommand(o => PopFolder());
AddEventListener(this);
PushFolder(Root);
FoldersView.Refresh();
OnPropertyChanged(nameof(FoldersView));
}
private void PopFolder()
{
if (_foldersStack.Count == 0)
{
return;
}
_foldersStack.RemoveAt(_foldersStack.Count - 1);
_folderTitle = _foldersStack[_foldersStack.Count - 1].Name;
_folders.Source = _foldersStack[_foldersStack.Count - 1].Folders;
FoldersView.Refresh();
OnPropertyChanged(nameof(FoldersView));
OnPropertyChanged(nameof(PicturesView));
}
public void PushFolder(Folder folder)
{
if (folder == null)
{
return;
}
if (_foldersStack.Count > 0)
{
_previousFolderTitle = _folderTitle;
}
_foldersStack.Add(folder);
FolderTitle = folder.Name;
_folders.Source = folder.Folders;
FoldersView.Refresh();
OnPropertyChanged(nameof(FoldersView));
OnPropertyChanged(nameof(PicturesView));
}