public LibraryRowItemPart(LibraryProvider libraryProvider, int itemIndex, LibraryDataView libraryDataView, GuiWidget thumbnailWidget)
			: base(libraryDataView, thumbnailWidget)
		{
			thumbnailWidth = thumbnailWidget.Width;
			var widget = thumbnailWidget as IClickable;
			if (widget != null)
			{
				widget.Click += onViewPartClick;
			}

			this.ItemName = libraryProvider.GetPrintItemName(itemIndex);
			if(this.ItemName == LibraryRowItem.LoadingPlaceholderToken)
			{
				this.ItemName = "Retrieving Contents...".Localize();
				this.IsViewHelperItem = true;
				this.EnableSlideInActions = false;
			}

			this.libraryProvider = libraryProvider;
			this.ItemIndex = itemIndex;

			CreateGuiElements();

			AddLoadingProgressBar();

            libraryProvider.RegisterForProgress(itemIndex, ReportProgressRatio);
		}
		public LibraryRowItemPart(LibraryProvider libraryProvider, int itemIndex, LibraryDataView libraryDataView, GuiWidget thumbnailWidget)
			: base(libraryDataView, thumbnailWidget)
		{
			thumbnailWidth = thumbnailWidget.Width;
			var widget = thumbnailWidget as IClickable;
			if (widget != null)
			{
				widget.Click += onViewPartClick;
			}

			this.ItemName = libraryProvider.GetPrintItemName(itemIndex);
			this.libraryProvider = libraryProvider;
			this.ItemIndex = itemIndex;

			CreateGuiElements();

			AddLoadingProgressBar();
		}