1 files changed, 78 insertions, 0 deletions
diff --git a/Xamarin.PropertyEditing.Mac/Controls/BindingEditor/BindingObjectSelectorControl.cs b/Xamarin.PropertyEditing.Mac/Controls/BindingEditor/BindingObjectSelectorControl.cs
new file mode 100644
index 0000000..8e82477
--- /dev/null
+++ b/Xamarin.PropertyEditing.Mac/Controls/BindingEditor/BindingObjectSelectorControl.cs
@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using AppKit;
+using Foundation;
+using Xamarin.PropertyEditing.ViewModels;
+
+namespace Xamarin.PropertyEditing.Mac
+{
+	internal class BindingObjectSelectorControl 
+		: NotifyingView<CreateBindingViewModel>
+	{
+		private ObjectOutlineView objectOutlineView;
+
+		private const string ObjectSelectorColId = "ObjectSelectorColumn";
+
+		internal BindingObjectSelectorControl (CreateBindingViewModel viewModel)
+		{
+			if (viewModel == null)
+				throw new ArgumentNullException (nameof (viewModel));
+
+			ViewModel = viewModel;
+
+			this.objectOutlineView = new ObjectOutlineView ();
+			TranslatesAutoresizingMaskIntoConstraints = false;
+
+			this.objectOutlineView.Activated += OnObjectOutlineViewSelected;
+
+			var resourceColumn = new NSTableColumn (ObjectSelectorColId);
+			this.objectOutlineView.AddColumn (resourceColumn);
+
+			// Set OutlineTableColumn or the arrows showing children/expansion will not be drawn
+			this.objectOutlineView.OutlineTableColumn = resourceColumn;
+
+			// create a table view and a scroll view
+			var outlineViewContainer = new NSScrollView {
+				TranslatesAutoresizingMaskIntoConstraints = false,
+			};
+
+			// add the panel to the window
+			outlineViewContainer.DocumentView = this.objectOutlineView;
+			AddSubview (outlineViewContainer);
+
+			AddConstraints (new[] {
+				NSLayoutConstraint.Create (outlineViewContainer, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1f, 28f),
+				NSLayoutConstraint.Create (outlineViewContainer, NSLayoutAttribute.Width, NSLayoutRelation.Equal, this, NSLayoutAttribute.Width, 1f, 0f),
+				NSLayoutConstraint.Create (outlineViewContainer, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, this, NSLayoutAttribute.CenterX, 1, 0),
+				NSLayoutConstraint.Create (outlineViewContainer, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal,this, NSLayoutAttribute.Bottom, 1f, 0f),
+			});
+
+			viewModel.PropertyChanged += OnPropertyChanged;
+		}
+
+		public override void OnPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
+		{
+			if (e.PropertyName == nameof (CreateBindingViewModel.ShowObjectSelector)) {
+				Hidden = !ViewModel.ShowObjectSelector;
+
+				if (ViewModel.ShowObjectSelector && ViewModel.ObjectElementRoots != null) {
+					this.objectOutlineView.ItemsSource = ViewModel.ObjectElementRoots.Value;
+				};
+			}
+		}
+
+		private void OnObjectOutlineViewSelected (object sender, EventArgs e)
+		{
+			if (sender is ObjectOutlineView rov) {
+				if (rov.SelectedRow != -1) {
+					if (rov.ItemAtRow (rov.SelectedRow) is NSObjectFacade item) {
+						if (item.Target is Resource resource) {
+							ViewModel.SelectedResource = resource;
+						}
+					}
+				}
+			}
+		}
+
+	}
+}