2 files changed, 122 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.InfoCard/ComponentModel/UriConverter.cs b/src/DotNetOpenAuth.InfoCard/ComponentModel/UriConverter.cs
new file mode 100644
index 0000000..5e7c22b
--- /dev/null
+++ b/src/DotNetOpenAuth.InfoCard/ComponentModel/UriConverter.cs
@@ -0,0 +1,117 @@
+//-----------------------------------------------------------------------
+// <copyright file="UriConverter.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.ComponentModel {
+	using System;
+	using System.Collections;
+	using System.ComponentModel;
+	using System.ComponentModel.Design.Serialization;
+	using System.Diagnostics.Contracts;
+	using System.Linq;
+	using System.Reflection;
+
+	/// <summary>
+	/// A design-time helper to allow controls to have properties
+	/// of type <see cref="Uri"/>.
+	/// </summary>
+	public class UriConverter : ConverterBase<Uri> {
+		/// <summary>
+		/// Initializes a new instance of the UriConverter class.
+		/// </summary>
+		protected UriConverter() {
+		}
+
+		/// <summary>
+		/// Gets the type to reflect over to extract the well known values.
+		/// </summary>
+		protected virtual Type WellKnownValuesType {
+			get { return null; }
+		}
+
+		/// <summary>
+		/// Returns whether the given value object is valid for this type and for the specified context.
+		/// </summary>
+		/// <param name="context">An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.</param>
+		/// <param name="value">The <see cref="T:System.Object"/> to test for validity.</param>
+		/// <returns>
+		/// true if the specified value is valid for this object; otherwise, false.
+		/// </returns>
+		public override bool IsValid(ITypeDescriptorContext context, object value) {
+			Uri uriValue;
+			string stringValue;
+			if ((uriValue = value as Uri) != null) {
+				return uriValue.IsAbsoluteUri;
+			} else if ((stringValue = value as string) != null) {
+				Uri result;
+				return stringValue.Length == 0 || Uri.TryCreate(stringValue, UriKind.Absolute, out result);
+			} else {
+				return false;
+			}
+		}
+
+		/// <summary>
+		/// Converts a value from its string representation to its strongly-typed object.
+		/// </summary>
+		/// <param name="value">The value.</param>
+		/// <returns>The strongly-typed object.</returns>
+		[Pure]
+		protected override Uri ConvertFrom(string value) {
+			return string.IsNullOrEmpty(value) ? null : new Uri(value);
+		}
+
+		/// <summary>
+		/// Creates the reflection instructions for recreating an instance later.
+		/// </summary>
+		/// <param name="value">The value to recreate later.</param>
+		/// <returns>
+		/// The description of how to recreate an instance.
+		/// </returns>
+		[Pure]
+		protected override InstanceDescriptor CreateFrom(Uri value) {
+			if (value == null) {
+				return null;
+			}
+
+			MemberInfo uriCtor = typeof(Uri).GetConstructor(new Type[] { typeof(string) });
+			return CreateInstanceDescriptor(uriCtor, new object[] { value.AbsoluteUri });
+		}
+
+		/// <summary>
+		/// Converts the strongly-typed value to a string.
+		/// </summary>
+		/// <param name="value">The value to convert.</param>
+		/// <returns>The string representation of the object.</returns>
+		[Pure]
+		protected override string ConvertToString(Uri value) {
+			if (value == null) {
+				return null;
+			}
+
+			return value.AbsoluteUri;
+		}
+
+		/// <summary>
+		/// Gets the standard claim type URIs known to the library.
+		/// </summary>
+		/// <returns>An array of the standard claim types.</returns>
+		[Pure]
+		protected override ICollection GetStandardValuesForCache() {
+			if (this.WellKnownValuesType != null) {
+				var fields = from field in this.WellKnownValuesType.GetFields(BindingFlags.Static | BindingFlags.Public)
+							 let value = (string)field.GetValue(null)
+							 where value != null
+							 select new Uri(value);
+				var properties = from prop in this.WellKnownValuesType.GetProperties(BindingFlags.Static | BindingFlags.Public)
+								 let value = (string)prop.GetValue(null, null)
+								 where value != null
+								 select new Uri(value);
+				return (fields.Concat(properties)).ToArray();
+			} else {
+				return new Uri[0];
+			}
+		}
+	}
+}
diff --git a/src/DotNetOpenAuth.InfoCard/DotNetOpenAuth.InfoCard.csproj b/src/DotNetOpenAuth.InfoCard/DotNetOpenAuth.InfoCard.csproj
index cd27f60..87b321a 100644
--- a/src/DotNetOpenAuth.InfoCard/DotNetOpenAuth.InfoCard.csproj
+++ b/src/DotNetOpenAuth.InfoCard/DotNetOpenAuth.InfoCard.csproj
@@ -19,6 +19,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="ComponentModel\IssuersSuggestions.cs" />
+    <Compile Include="ComponentModel\UriConverter.cs" />
     <Compile Include="InfoCardErrorUtilities.cs" />
     <Compile Include="InfoCard\ClaimType.cs" />
     <Compile Include="InfoCard\InfoCardImage.cs" />
@@ -66,6 +67,10 @@
     <EmbeddedResource Include="InfoCard\InfoCardStrings.sr.resx" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\DotNetOpenAuth.Messaging.UI\DotNetOpenAuth.Messaging.UI.csproj">
+      <Project>{173E7B8D-E751-46E2-A133-F72297C0D2F4}</Project>
+      <Name>DotNetOpenAuth.Messaging.UI</Name>
+    </ProjectReference>
     <ProjectReference Include="..\DotNetOpenAuth.Messaging\DotNetOpenAuth.Messaging.csproj">
       <Project>{60426312-6AE5-4835-8667-37EDEA670222}</Project>
       <Name>DotNetOpenAuth.Messaging</Name>