public PostListViewModel(Panel popupPlaceholder)
{
this._popupPlaceholder = popupPlaceholder;
this.Posts = new ObservableCollection<PostItemViewModel>();
this._itemsByPostNumbers = new Dictionary<long, PostItemViewModel>();
this._dvachUriParser = Container.Resolve<DvachUriParser>();
this._urlBuilder = Container.Resolve<DvachUrlBuilder>();
this._pageNavigationService = Container.Resolve<PageNavigationService>();
this._popupDisplayer = Container.Resolve<PopupDisplayer>();
}