Native Bindings (#278)

* [C, I, A, W] Support Native Bindings

* fix tabs

3 files changed, 104 insertions, 1 deletions

diff --git a/Xamarin.Forms.Controls/ControlGalleryPages/NativeBindingGalleryPage.cs b/Xamarin.Forms.Controls/ControlGalleryPages/NativeBindingGalleryPage.cs
new file mode 100644
index 00000000..51d9b970
--- /dev/null
+++ b/Xamarin.Forms.Controls/ControlGalleryPages/NativeBindingGalleryPage.cs
@@ -0,0 +1,101 @@
+using System;
+using Xamarin.Forms.Internals;
+
+namespace Xamarin.Forms.Controls
+{
+	public class NativeBindingGalleryPage : ContentPage
+	{
+		public StackLayout Layout { get; set; }
+		public bool NativeControlsAdded { get; set; }
+
+		NestedNativeViewModel ViewModel { get; set; }
+
+		public NativeBindingGalleryPage()
+		{
+
+			var vm = new NestedNativeViewModel();
+			vm.FormsLabel = "Forms Label Binding";
+			vm.NativeLabel = "Native Label Binding";
+			vm.NativeLabelColor = Color.Red;
+			vm.Age = 45;
+
+			Layout = new StackLayout { Padding = 20, VerticalOptions = LayoutOptions.FillAndExpand };
+
+			var buttonNav = new Button { Text = "New Page" };
+			buttonNav.Clicked += (object sender, EventArgs e) =>
+			{
+				App.Current.MainPage = new ContentPage { Content = new Label { Text = "New page" } };
+			};
+
+			var button = new Button { Text = "Change BindingContext " };
+			button.Clicked += (object sender, EventArgs e) =>
+			{
+				vm = new NestedNativeViewModel();
+				vm.FormsLabel = "Forms Label Binding Changed";
+				vm.NativeLabel = "Native Label Binding Changed";
+				vm.NativeLabelColor = Color.Pink;
+				vm.Age = 10;
+
+				BindingContext = ViewModel = vm; ;
+			};
+
+			var boxView = new BoxView { HeightRequest = 50 };
+			boxView.SetBinding(BoxView.BackgroundColorProperty, "NativeLabelColor");
+
+			var label = new Label();
+			label.SetBinding(Label.TextProperty, "FormsLabel");
+
+			Layout.Children.Add(buttonNav);
+
+			Layout.Children.Add(label);
+
+			Layout.Children.Add(boxView);
+			Layout.Children.Add(button);
+
+			BindingContext = ViewModel = vm; ;
+
+			Content = new ScrollView { Content = Layout };
+		}
+	}
+
+
+	[Preserve(AllMembers = true)]
+	public class NestedNativeViewModel : ViewModelBase
+	{
+		string _formsLabel;
+		public string FormsLabel
+		{
+			get { return _formsLabel; }
+			set { _formsLabel = value; OnPropertyChanged(); }
+		}
+
+		string _nativeLabel;
+		public string NativeLabel
+		{
+			get { return _nativeLabel; }
+			set { _nativeLabel = value; OnPropertyChanged(); }
+		}
+
+		Color _nativeLabelColor;
+		public Color NativeLabelColor
+		{
+			get { return _nativeLabelColor; }
+			set { _nativeLabelColor = value; OnPropertyChanged(); }
+		}
+
+		int _age;
+		public int Age
+		{
+			get { return _age; }
+			set { _age = value; OnPropertyChanged(); }
+		}
+
+		bool _selected;
+		public bool Selected
+		{
+			get { return _selected; }
+			set { _selected = value; OnPropertyChanged(); }
+		}
+	}
+
+}
diff --git a/Xamarin.Forms.Controls/CoreGallery.cs b/Xamarin.Forms.Controls/CoreGallery.cs
index 7986a45c..06f214b4 100644
--- a/Xamarin.Forms.Controls/CoreGallery.cs
+++ b/Xamarin.Forms.Controls/CoreGallery.cs
@@ -221,6 +221,7 @@ namespace Xamarin.Forms.Controls
 		{
 			var pages = new List<Page> {
 				new PlatformSpecificsGallery() {Title = "Platform Specifics"},
+				new NativeBindingGalleryPage {Title = "Native Binding Controls Gallery"},
 				new AppLinkPageGallery {Title = "App Link Page Gallery"},
 				new NestedNativeControlGalleryPage {Title = "Nested Native Controls Gallery"},
 				new CellForceUpdateSizeGalleryPage {Title = "Cell Force Update Size Gallery"},
@@ -446,4 +447,4 @@ namespace Xamarin.Forms.Controls
 			return new CoreNavigationPage ();
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/Xamarin.Forms.Controls/Xamarin.Forms.Controls.csproj b/Xamarin.Forms.Controls/Xamarin.Forms.Controls.csproj
index 825d157d..3b02adbe 100644
--- a/Xamarin.Forms.Controls/Xamarin.Forms.Controls.csproj
+++ b/Xamarin.Forms.Controls/Xamarin.Forms.Controls.csproj
@@ -235,6 +235,7 @@
     <Compile Include="ControlGalleryPages\AppearingGalleryPage.cs" />
     <Compile Include="ControlGalleryPages\AutomationIDGallery.cs" />
     <Compile Include="GalleryPages\AppLinkPageGallery.cs" />
+    <Compile Include="ControlGalleryPages\NativeBindingGalleryPage.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
   <Import Project="..\.nuspec\Xamarin.Forms.targets" />