Fix T4MVC T4 template failing to run.

Extend the text templating addin to allow addins to define their own service providers.
Package management addin defines a service provider that can be used in a T4 template to create EnvDTE types such as DTE.

src/AddIns/Misc/PackageManagement/Project/PackageManagement.addin

@@ -102,4 +102,10 @@
 			id="InstallPackages"
 			class="ICSharpCode.PackageManagement.InstallProjectTemplatePackagesCommand"/>
 	</Path>
+	
+	<Path name="/SharpDevelop/TextTemplating/ServiceProviders">
+		<Class
+			id="PackageManagementServiceProvider"
+			class="ICSharpCode.PackageManagement.PackageManagementServiceProvider"/>
+	</Path>
 </AddIn>

src/AddIns/Misc/PackageManagement/Project/PackageManagement.csproj

@@ -214,6 +214,7 @@
     <Compile Include="Src\IThreadSafePackageManagementEvents.cs" />
     <Compile Include="Src\ManagePackagesUserPrompts.cs" />
     <Compile Include="Src\ManagePackagesViewTitle.cs" />
+    <Compile Include="Src\PackageManagementServiceProvider.cs" />
     <Compile Include="Src\VirtualMethodUpdater.cs" />
     <Compile Include="Src\NewProjectsCreated.cs" />
     <Compile Include="Src\OpenMSBuildProjects.cs" />

src/AddIns/Misc/PackageManagement/Project/Src/PackageManagementServiceProvider.cs

@@ -0,0 +1,16 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using Microsoft.VisualStudio.Shell;
+
+namespace ICSharpCode.PackageManagement
+{
+	public class PackageManagementServiceProvider : IServiceProvider
+	{
+		public object GetService(Type serviceType)
+		{
+			return Package.GetGlobalService(serviceType);
+		}
+	}
+}

src/AddIns/Misc/PackageManagement/Test/PackageManagement.Tests.csproj

@@ -186,6 +186,7 @@
     <Compile Include="Src\Helpers\TestableInstallProjectTemplatePackagesCommand.cs" />
     <Compile Include="Src\Helpers\TestablePowerShellMissingConsoleHost.cs" />
     <Compile Include="Src\InstallProjectTemplatePackagesCommandTests.cs" />
+    <Compile Include="Src\PackageManagementServiceProviderTests.cs" />
     <Compile Include="Src\VirtualMethodUpdaterTests.cs" />
     <Compile Include="Src\NewProjectsCreatedTests.cs" />
     <Compile Include="Src\PackageActionRunnerTests.cs" />

src/AddIns/Misc/PackageManagement/Test/Src/PackageManagementServiceProviderTests.cs

@@ -0,0 +1,30 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using ICSharpCode.PackageManagement;
+using NUnit.Framework;
+
+namespace PackageManagement.Tests
+{
+	[TestFixture]
+	public class PackageManagementServiceProviderTests
+	{
+		PackageManagementServiceProvider serviceProvider;
+		
+		public void CreateServiceProvider()
+		{
+			serviceProvider = new PackageManagementServiceProvider();
+		}
+		
+		[Test]
+		public void GetService_TypeOfDTE_ReturnsDTE()
+		{
+			CreateServiceProvider();
+			
+			object dte = serviceProvider.GetService(typeof(global::EnvDTE.DTE)) as global::EnvDTE.DTE;
+			
+			Assert.IsInstanceOf(typeof(global::EnvDTE.DTE), dte);
+		}
+	}
+}

src/AddIns/Misc/TextTemplating/Project/Src/CustomServiceTextTemplatingServiceProviders.cs

@@ -0,0 +1,37 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Collections.Generic;
+
+namespace ICSharpCode.TextTemplating
+{
+	public class CustomServiceTextTemplatingServiceProviders : IServiceProvider
+	{
+		public static readonly string AddInPath = "/SharpDevelop/TextTemplating/ServiceProviders";
+		
+		List<IServiceProvider> serviceProviders;
+		
+		public CustomServiceTextTemplatingServiceProviders()
+			: this(new TextTemplatingAddInTree())
+		{
+		}
+		
+		public CustomServiceTextTemplatingServiceProviders(IAddInTree addInTree)
+		{
+			serviceProviders = addInTree.BuildServiceProviders(AddInPath);
+		}
+		
+		public object GetService(Type serviceType)
+		{
+			foreach (IServiceProvider provider in serviceProviders) {
+				object service = provider.GetService(serviceType);
+				if (service != null) {
+					return service;
+				}
+			}
+			
+			return null;
+		}
+	}
+}

src/AddIns/Misc/TextTemplating/Project/Src/IAddInTree.cs

@@ -9,5 +9,6 @@ namespace ICSharpCode.TextTemplating
 	public interface IAddInTree
 	{
 		IEnumerable<IAddIn> GetAddIns();
+		List<IServiceProvider> BuildServiceProviders(string path);
 	}
 }

src/AddIns/Misc/TextTemplating/Project/Src/TextTemplatingAddInTree.cs

@@ -15,5 +15,10 @@ namespace ICSharpCode.TextTemplating
 				yield return new TextTemplatingAddIn(addIn);
 			}
 		}
+		
+		public List<IServiceProvider> BuildServiceProviders(string path)
+		{
+			return AddInTree.BuildItems<IServiceProvider>(path, null);
+		}
 	}
 }

src/AddIns/Misc/TextTemplating/Project/Src/TextTemplatingServiceProvider.cs

@@ -7,8 +7,24 @@ namespace ICSharpCode.TextTemplating
 {
 	public class TextTemplatingServiceProvider : IServiceProvider
 	{
+		IServiceProvider serviceProvider;
+		
+		public TextTemplatingServiceProvider()
+			: this(new CustomServiceTextTemplatingServiceProviders())
+		{
+		}
+		
+		public TextTemplatingServiceProvider(IServiceProvider serviceProvider)
+		{
+			this.serviceProvider = serviceProvider;
+		}
+		
 		public object GetService(Type serviceType)
 		{
+			object service = serviceProvider.GetService(serviceType);
+			if (service != null) {
+				return service;
+			}
 			return serviceType.Assembly.CreateInstance(serviceType.FullName);
 		}
 	}

src/AddIns/Misc/TextTemplating/Project/TextTemplating.addin

@@ -51,4 +51,12 @@
 	<Path name="/SharpDevelop/BackendBindings/Templates">
 		<Directory id="TextTemplating" path="./Templates"/>
 	</Path>
+	
+	<!-- Defines service providers that will be used by the text templating host
+	     to create types before the default TextTemplatingServiceProvider class -->
+	<Path name="/SharpDevelop/TextTemplating/ServiceProviders">
+		<!-- Example
+			<Class id="Default" class="MyNamespace.MyServiceProvider" />
+		-->
+	</Path>
 </AddIn>

src/AddIns/Misc/TextTemplating/Project/TextTemplating.csproj

@@ -53,6 +53,7 @@
     <Compile Include="Src\AddInAssemblyName.cs" />
     <Compile Include="Src\AddInAssemblyRuntime.cs" />
     <Compile Include="Src\CompilerErrorTask.cs" />
+    <Compile Include="Src\CustomServiceTextTemplatingServiceProviders.cs" />
     <Compile Include="Src\IAddIn.cs" />
     <Compile Include="Src\IAddInRuntime.cs" />
     <Compile Include="Src\IAddInTree.cs" />

src/AddIns/Misc/TextTemplating/Test/Helpers/FakeAddInTree.cs

@@ -24,5 +24,10 @@ namespace TextTemplating.Tests.Helpers
 		{
 			return FakeAddIns;
 		}
+		
+		public List<IServiceProvider> BuildServiceProviders(string path)
+		{
+			return null;
+		}
 	}
 }

src/AddIns/Misc/TextTemplating/Test/Src/CustomTextTemplatingServiceProvidersTests.cs

@@ -0,0 +1,85 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Collections.Generic;
+using ICSharpCode.TextTemplating;
+using NUnit.Framework;
+using Rhino.Mocks;
+
+namespace TextTemplating.Tests
+{
+	[TestFixture]
+	public class CustomTextTemplatingServiceProvidersTests
+	{
+		CustomServiceTextTemplatingServiceProviders customServiceProviders;
+		IAddInTree fakeAddInTree;
+		List<IServiceProvider> addInTreeServiceProviders;
+		
+		void CreateFakeAddInTree()
+		{
+			fakeAddInTree = MockRepository.GenerateStub<IAddInTree>();
+			addInTreeServiceProviders = new List<IServiceProvider>();
+			fakeAddInTree
+				.Stub(tree => tree.BuildServiceProviders(CustomServiceTextTemplatingServiceProviders.AddInPath))
+				.Return(addInTreeServiceProviders);
+		}
+		
+		void CreateCustomTextTemplatingServiceProviders()
+		{
+			customServiceProviders = new CustomServiceTextTemplatingServiceProviders(fakeAddInTree);
+		}
+		
+		void AddServiceObjectToReturnFromServiceProvider(IServiceProvider serviceProvider, Type type, object objectToReturn)
+		{
+			serviceProvider.Stub(provider => provider.GetService(type)).Return(objectToReturn);
+		}
+		
+		IServiceProvider AddServiceProviderToAddInTree()
+		{
+			IServiceProvider serviceProvider = MockRepository.GenerateStub<IServiceProvider>();
+			addInTreeServiceProviders.Add(serviceProvider);
+			return serviceProvider;
+		}
+		
+		[Test]
+		public void GetService_AddInTreeDefinesNoServiceProviders_ReturnsNull()
+		{
+			CreateFakeAddInTree();
+			CreateCustomTextTemplatingServiceProviders();
+			
+			object result = customServiceProviders.GetService(typeof(string));
+			
+			Assert.IsNull(result);
+		}
+		
+		[Test]
+		public void GetService_AddInTreeDefinesOneServiceProvider_TypeReturnedFromServiceProvider()
+		{
+			CreateFakeAddInTree();
+			IServiceProvider serviceProvider = AddServiceProviderToAddInTree();
+			object objectToReturnFromServiceProvider = new object();
+			AddServiceObjectToReturnFromServiceProvider(serviceProvider, typeof(string), objectToReturnFromServiceProvider);
+			CreateCustomTextTemplatingServiceProviders();
+			
+			object result = customServiceProviders.GetService(typeof(string));
+			
+			Assert.AreEqual(objectToReturnFromServiceProvider, result);
+		}
+		
+		[Test]
+		public void GetService_AddInTreeDefinesTwoServiceProvidersAndSecondDefinesServiceType_TypeReturnedFromSecondServiceProvider()
+		{
+			CreateFakeAddInTree();
+			AddServiceProviderToAddInTree();
+			IServiceProvider serviceProvider = AddServiceProviderToAddInTree();
+			object objectToReturnFromServiceProvider = new object();
+			AddServiceObjectToReturnFromServiceProvider(serviceProvider, typeof(string), objectToReturnFromServiceProvider);
+			CreateCustomTextTemplatingServiceProviders();
+			
+			object result = customServiceProviders.GetService(typeof(string));
+			
+			Assert.AreEqual(objectToReturnFromServiceProvider, result);
+		}
+	}
+}

src/AddIns/Misc/TextTemplating/Test/Src/TextTemplatingServiceProviderTests.cs

@@ -4,6 +4,7 @@
 using System;
 using ICSharpCode.TextTemplating;
 using NUnit.Framework;
+using Rhino.Mocks;
 using TextTemplating.Tests.Helpers;
 
 namespace TextTemplating.Tests
@@ -11,20 +12,59 @@ namespace TextTemplating.Tests
 	[TestFixture]
 	public class TextTemplatingServiceProviderTests
 	{
-		TextTemplatingServiceProvider serviceProvider;
+		TextTemplatingServiceProvider textTemplatingServiceProvider;
 		
-		void CreateServiceProvider()
+		void CreateTextTemplatingServiceProvider()
 		{
-			serviceProvider = new TextTemplatingServiceProvider();
+			IServiceProvider serviceProvider = CreateFakeServiceProvider();
+			CreateTextTemplatingServiceProvider(serviceProvider);
+		}
+		
+		void CreateTextTemplatingServiceProvider(IServiceProvider serviceProvider)
+		{
+			textTemplatingServiceProvider = new TextTemplatingServiceProvider(serviceProvider);
+		}
+		
+		IServiceProvider CreateFakeServiceProvider()
+		{
+			return MockRepository.GenerateStub<IServiceProvider>();
+		}
+		
+		IServiceProvider CreateFakeServiceProvider(Type serviceType, object service)
+		{
+			IServiceProvider serviceProvider = CreateFakeServiceProvider();
+			AddServiceToFakeServiceProvider(serviceProvider, serviceType, service);
+			return serviceProvider;
+		}
+		
+		void AddServiceToFakeServiceProvider(IServiceProvider serviceProvider, Type serviceType, object service)
+		{
+			serviceProvider
+				.Stub(provider => provider.GetService(serviceType))
+				.Return(service);
 		}
 		
 		[Test]
-		public void GetService_TypeOfFakeServiceProvider_ReturnsNewFakeServiceProvider()
+		public void GetService_TypeOfTextTemplatingServiceProviderTests_ReturnsTextTemplatingServiceProviderTests()
 		{
-			CreateServiceProvider();
+			CreateTextTemplatingServiceProvider();
-			FakeServiceProvider service = serviceProvider.GetService(typeof(FakeServiceProvider)) as FakeServiceProvider;
+			
+			var service = textTemplatingServiceProvider.GetService(typeof(TextTemplatingServiceProviderTests)) as TextTemplatingServiceProviderTests;
 			
 			Assert.IsNotNull(service);
 		}
+		
+		[Test]
+		public void GetService_ServiceDefinedByServiceProviderUsedInConstructor_ReturnsServiceFromServiceProvider()
+		{
+			var expectedService = new object();
+			IServiceProvider fakeServiceProvider = 
+				CreateFakeServiceProvider(typeof(TextTemplatingServiceProviderTests), expectedService);
+			CreateTextTemplatingServiceProvider(fakeServiceProvider);
+			
+			object service = textTemplatingServiceProvider.GetService(typeof(TextTemplatingServiceProviderTests));
+			
+			Assert.AreEqual(expectedService, service);
+		}
 	}
 }

src/AddIns/Misc/TextTemplating/Test/TextTemplating.Tests.csproj

@@ -44,6 +44,9 @@
     <Reference Include="nunit.framework">
       <HintPath>..\..\..\..\Tools\NUnit\nunit.framework.dll</HintPath>
     </Reference>
+    <Reference Include="Rhino.Mocks">
+      <HintPath>..\..\..\..\Libraries\RhinoMocks\Rhino.Mocks.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
@@ -85,6 +88,7 @@
     <Compile Include="Src\AddInAssemblyNameTests.cs" />
     <Compile Include="Src\AddInAssemblyRuntimeTests.cs" />
     <Compile Include="Src\CompilerErrorTaskTests.cs" />
+    <Compile Include="Src\CustomTextTemplatingServiceProvidersTests.cs" />
     <Compile Include="Src\NamespaceHintTests.cs" />
     <Compile Include="Src\TextTemplatingAssemblyPathResolverTests.cs" />
     <Compile Include="Src\TextTemplatingAssemblyResolverTests.cs" />

src/AddIns/Misc/TextTemplating/TextTemplating.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
-# SharpDevelop 4.1.0.7374-alpha
+# SharpDevelop 4.3
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TextTemplating", "Project\TextTemplating.csproj", "{B5D8C3E6-42EC-4D4B-AD05-3644B32563EF}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AvalonDock", "..\..\..\Libraries\AvalonDock\AvalonDock\AvalonDock.csproj", "{87E61430-4243-45F2-B74E-0A4C096CEBF3}"
@@ -106,5 +106,9 @@ Global
 		{35CEF10F-2D4C-45F2-9DD1-161E0FEC583C}.Release|x86.ActiveCfg = Release|Any CPU
 		{35CEF10F-2D4C-45F2-9DD1-161E0FEC583C}.Release|Any CPU.Build.0 = Release|Any CPU
 		{35CEF10F-2D4C-45F2-9DD1-161E0FEC583C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B5D8C3E6-42EC-4D4B-AD05-3644B32563EF}.Debug|Any CPU.Build.0 = Debug|x86
+		{B5D8C3E6-42EC-4D4B-AD05-3644B32563EF}.Debug|Any CPU.ActiveCfg = Debug|x86
+		{B5D8C3E6-42EC-4D4B-AD05-3644B32563EF}.Release|Any CPU.Build.0 = Release|x86
+		{B5D8C3E6-42EC-4D4B-AD05-3644B32563EF}.Release|Any CPU.ActiveCfg = Release|x86
 	EndGlobalSection
 EndGlobal