1 files changed, 68 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs b/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs
new file mode 100644
index 00000000..54e540a6
--- /dev/null
+++ b/Xamarin.Forms.Platform.MacOS/Cells/CellRenderer.cs
@@ -0,0 +1,68 @@
+using System;
+using AppKit;
+using CoreGraphics;
+
+namespace Xamarin.Forms.Platform.MacOS
+{
+	public class CellRenderer : IRegisterable
+	{
+		static readonly BindableProperty s_realCellProperty = BindableProperty.CreateAttached("RealCell", typeof(NSView),
+			typeof(Cell), null);
+
+		EventHandler _onForceUpdateSizeRequested;
+
+		public virtual NSView GetCell(Cell item, NSView reusableView, NSTableView tv)
+		{
+			var tvc = reusableView as CellNSView ?? new CellNSView(NSTableViewCellStyle.Default);
+
+			tvc.Cell = item;
+
+			WireUpForceUpdateSizeRequested(item, tvc, tv);
+
+			tvc.TextLabel.StringValue = item.ToString();
+
+			UpdateBackground(tvc, item);
+
+			return tvc;
+		}
+
+		protected void UpdateBackground(NSView tableViewCell, Cell cell)
+		{
+			tableViewCell.WantsLayer = true;
+			var bgColor = NSColor.White;
+			var element = cell.RealParent as VisualElement;
+			if (element != null)
+				bgColor = element.BackgroundColor == Color.Default ? bgColor : element.BackgroundColor.ToNSColor();
+
+			UpdateBackgroundChild(cell, bgColor);
+
+			tableViewCell.Layer.BackgroundColor = bgColor.CGColor;
+		}
+
+		protected void WireUpForceUpdateSizeRequested(ICellController cell, NSView nativeCell, NSTableView tableView)
+		{
+			cell.ForceUpdateSizeRequested -= _onForceUpdateSizeRequested;
+
+			_onForceUpdateSizeRequested = (sender, e) =>
+			{
+				//TODO: Implement ForceUpdateSize
+			};
+
+			cell.ForceUpdateSizeRequested += _onForceUpdateSizeRequested;
+		}
+
+		internal virtual void UpdateBackgroundChild(Cell cell, NSColor backgroundColor)
+		{
+		}
+
+		internal static NSView GetRealCell(BindableObject cell)
+		{
+			return (NSView)cell.GetValue(s_realCellProperty);
+		}
+
+		internal static void SetRealCell(BindableObject cell, NSView renderer)
+		{
+			cell.SetValue(s_realCellProperty, renderer);
+		}
+	}
+}
+\ No newline at end of file