1 files changed, 77 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WP8/ViewToRendererConverter.cs b/Xamarin.Forms.Platform.WP8/ViewToRendererConverter.cs
new file mode 100644
index 00000000..49b232a1
--- /dev/null
+++ b/Xamarin.Forms.Platform.WP8/ViewToRendererConverter.cs
@@ -0,0 +1,77 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Xamarin.Forms.Platform.WinPhone
+{
+	public class ViewToRendererConverter : System.Windows.Data.IValueConverter
+	{
+		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+		{
+			var view = value as View;
+			if (view == null)
+				return null;
+
+			return new WrapperControl(view);
+		}
+
+		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+		{
+			throw new NotSupportedException();
+		}
+
+		class WrapperControl : ContentControl
+		{
+			readonly View _view;
+
+			public WrapperControl(View view)
+			{
+				_view = view;
+				_view.MeasureInvalidated += (sender, args) => InvalidateMeasure();
+
+				IVisualElementRenderer visualElementRenderer = Platform.CreateRenderer(view);
+				Platform.SetRenderer(view, visualElementRenderer);
+				Content = visualElementRenderer.ContainerElement;
+
+				// make sure we re-measure once the template is applied
+				var frameworkElement = visualElementRenderer.ContainerElement as FrameworkElement;
+				if (frameworkElement != null)
+				{
+					frameworkElement.Loaded += (sender, args) =>
+					{
+						_view.InvalidateMeasure(InvalidationTrigger.MeasureChanged);
+						InvalidateMeasure();
+					};
+				}
+			}
+
+			protected override System.Windows.Size ArrangeOverride(System.Windows.Size finalSize)
+			{
+				_view.IsInNativeLayout = true;
+				Layout.LayoutChildIntoBoundingRegion(_view, new Rectangle(0, 0, finalSize.Width, finalSize.Height));
+				_view.IsInNativeLayout = false;
+
+				var content = Content as FrameworkElement;
+				content?.Arrange(new Rect(0, 0, finalSize.Width, finalSize.Height));
+				return finalSize;
+			}
+
+			protected override System.Windows.Size MeasureOverride(System.Windows.Size availableSize)
+			{
+				var content = Content as FrameworkElement;
+				content?.Measure(availableSize);
+				Size request = _view.Measure(availableSize.Width, availableSize.Height, MeasureFlags.IncludeMargins).Request;
+
+				System.Windows.Size result;
+				if (_view.HorizontalOptions.Alignment == LayoutAlignment.Fill && !double.IsInfinity(availableSize.Width) && availableSize.Width != 0)
+					result = new System.Windows.Size(availableSize.Width, request.Height);
+				else
+					result = new System.Windows.Size(request.Width, request.Height);
+
+				_view.Layout(new Rectangle(0, 0, result.Width, result.Width));
+				return result;
+			}
+		}
+	}
+}
+\ No newline at end of file