Imported Upstream version 4.2.0.179

Former-commit-id: 4610231f55806d2a05ed69e5ff3faa7336cc1479

mcs/class/System.Windows.Forms/System.Resources/FileRefHandler.cs

@@ -0,0 +1,94 @@
+//
+// FileRefHandler.cs : Handles a ResXFileRef that was either stored in 
+// a resx file or has been added to a ResXDataNode that was freshly 
+// instantiated by a user 
+// 
+// Author:
+//	Gary Barnett (gary.barnett.mono@gmail.com)
+// 
+// Copyright (C) Gary Barnett (2012)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+using System;
+using System.Reflection;
+using System.ComponentModel.Design;
+using System.ComponentModel;
+using System.IO;
+
+namespace System.Resources {
+	internal class FileRefHandler : ResXDataNodeHandler {
+		ResXFileRef resXFileRef; // same as that referenced in ResXDataNode
+
+		public FileRefHandler (ResXFileRef fileRef)
+		{
+			resXFileRef = fileRef;
+		}
+
+		#region implemented abstract members of System.Resources.ResXDataNodeHandler
+		public override object GetValue (ITypeResolutionService typeResolver)
+		{
+			return GetValue ();		
+		}
+
+		public override object GetValue (AssemblyName [] assemblyNames)
+		{
+			return GetValue ();
+		}
+
+		public override string GetValueTypeName (ITypeResolutionService typeResolver)
+		{
+			// although params ignored by GetValue. .NET resolves the type for GetValueTypeName
+			Type type = ResolveType (resXFileRef.TypeName, typeResolver);
+
+			if (type == null)
+				return resXFileRef.TypeName;
+			else
+				return type.AssemblyQualifiedName;
+		}
+
+		public override string GetValueTypeName (AssemblyName [] assemblyNames)
+		{
+			Type type = ResolveType (resXFileRef.TypeName, assemblyNames);
+
+			if (type == null)
+				return resXFileRef.TypeName;
+			else
+				return type.AssemblyQualifiedName;
+		}
+		#endregion
+
+		private object GetValue ()
+		{
+			TypeConverter c = TypeDescriptor.GetConverter (typeof (ResXFileRef));
+
+			try {
+				return c.ConvertFromInvariantString (resXFileRef.ToString ());
+			} catch (ArgumentNullException ex) {
+				if (ex.ParamName == "type")
+					throw new TypeLoadException ("Could not find type", ex); //FIXME: error message?
+				else 
+					throw ex;
+			}
+		}
+
+	}
+}
+