Refactoring the WorkflowDesignerLoaders

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2386 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Gui/ViewContentControl.cs

@@ -22,6 +22,8 @@ using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.TextEditor;
 using ICSharpCode.TextEditor.Document;
 using ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor;
+
+using WorkflowDesigner.Loaders;
 #endregion
 
 namespace WorkflowDesigner

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Loaders/BasicWorkflowDesignerLoader.cs

@@ -0,0 +1,155 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Russell Wilkins" email=""/>
+//     <version>$Revision$</version>
+// </file>
+
+#region Using
+using System;
+using System.ComponentModel.Design;
+using System.ComponentModel.Design.Serialization;
+using System.Drawing.Design;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Workflow.ComponentModel.Design;
+using System.Workflow.ComponentModel.Compiler;
+using ICSharpCode.SharpDevelop.Gui;
+using ICSharpCode.SharpDevelop.Project;
+#endregion
+
+namespace WorkflowDesigner.Loaders
+{
+	/// <summary>
+	/// Description of BasicWorkflowDesignerLoader.
+	/// </summary>
+	public abstract class BasicWorkflowDesignerLoader : WorkflowDesignerLoader
+	{
+		private IViewContent viewContent;
+		private string ruleFileName = string.Empty;
+		private StringBuilder rules;
+
+		public BasicWorkflowDesignerLoader(IViewContent viewContent)
+		{
+			this.viewContent = viewContent;
+			ruleFileName = Path.Combine(Path.GetDirectoryName(FileName),
+			                            Path.GetFileNameWithoutExtension(FileName) + ".rules");
+		}
+		
+		#region Property Accessors
+		public IViewContent ViewContent {
+			get { return viewContent; }
+		}
+		
+		public override string FileName {
+			get {
+				return viewContent.PrimaryFileName;
+			}
+		}
+
+		public IProject Project {
+			get {
+				return ProjectService.OpenSolution.FindProjectContainingFile(FileName);
+			}
+		}
+		#endregion
+		
+		public override TextReader GetFileReader(string filePath)
+		{
+			return new StringReader(rules.ToString());
+		}
+
+		public override TextWriter GetFileWriter(string filePath)
+		{
+			if (rules == null) {
+				rules = new StringBuilder();
+				CreateRulesProjectItem();
+			}
+			
+			return new StringWriter(rules, CultureInfo.CurrentCulture);
+		}
+		
+		private void LoadRules()
+		{
+			// Load the rules
+			if (File.Exists(ruleFileName)) {
+				rules = new StringBuilder(File.ReadAllText(ruleFileName));
+				CreateRulesProjectItem();
+			}
+			
+		}
+		
+		private void UpdateRules()
+		{
+			if ((rules != null) && (rules.Length > 0))
+				File.WriteAllText(ruleFileName, rules.ToString());
+		}
+		
+		private void CreateRulesProjectItem()
+		{
+			if (Project != null){
+				if (!Project.IsFileInProject(ruleFileName)) {
+					FileProjectItem fpi = Project.FindFile(FileName);
+					FileProjectItem rfpi = new FileProjectItem(Project,ItemType.EmbeddedResource);
+					rfpi.FileName = Path.Combine(Path.GetDirectoryName(FileName), Path.GetFileName(ruleFileName));
+					rfpi.DependentUpon = Path.GetFileName(FileName);
+					ProjectService.AddProjectItem(Project,  rfpi);
+					ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
+					Project.Save();
+				}
+			}
+		}
+
+		protected override void Initialize()
+		{
+			base.Initialize();
+			
+			// Add the basic service required by all designers
+			LoaderHost.AddService(typeof(IToolboxService), new WorkflowToolboxService(LoaderHost));
+			LoaderHost.AddService(typeof(ITypeProvider), TypeProviderService.GetTypeProvider(Project));
+			LoaderHost.AddService(typeof(IMenuCommandService), new WorkflowMenuCommandService(LoaderHost));
+			LoaderHost.AddService(typeof(ITypeResolutionService), new TypeResolutionService(Project,LoaderHost));
+			LoaderHost.AddService(typeof(IPropertyValueUIService), new PropertyValueUIService());
+
+			
+		}
+		
+		public override void Dispose()
+		{
+			try {
+				// Remove all the services from the from the host designer.
+				if (LoaderHost != null)	{
+					LoaderHost.RemoveService(typeof(IToolboxService));
+					LoaderHost.RemoveService(typeof(ITypeProvider));
+					LoaderHost.RemoveService(typeof(IEventBindingService));
+					LoaderHost.RemoveService(typeof(IMenuCommandService));
+					LoaderHost.RemoveService(typeof(IPropertyValueUIService));
+
+					LoaderHost.RemoveService(typeof(ITypeResolutionService));
+					LoaderHost.RemoveService(typeof(IMemberCreationService));
+				}
+			} finally {
+				base.Dispose();
+			}
+		}
+
+		protected override void PerformLoad(IDesignerSerializationManager serializationManager)
+		{
+			base.PerformLoad(serializationManager);
+			DoPerformLoad(serializationManager);
+			LoadRules();
+			LoaderHost.Activate();
+		}
+
+		protected abstract void DoPerformLoad(IDesignerSerializationManager serializationManager);
+		
+		protected override void PerformFlush(IDesignerSerializationManager serializationManager)
+		{
+			DoPerformFlush(serializationManager);
+			UpdateRules();
+		}
+
+		protected abstract void DoPerformFlush(IDesignerSerializationManager serializationManager);
+	}
+}

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Loaders/CodeDesignerLoader.cs

@@ -6,116 +6,81 @@
 // </file>
 
 #region Using
-using ICSharpCode.Core;
-using ICSharpCode.NRefactory;
-using ICSharpCode.NRefactory.Ast;
-using ICSharpCode.NRefactory.Visitors;
-using ICSharpCode.SharpDevelop;
-using ICSharpCode.SharpDevelop.Dom;
-using ICSharpCode.TextEditor;
-using ICSharpCode.SharpDevelop.Gui;
-using ICSharpCode.SharpDevelop.Project;
-
 using System;
 using System.CodeDom;
-using System.CodeDom.Compiler;
-using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel.Design;
 using System.ComponentModel.Design.Serialization;
-using System.Drawing.Design;
 using System.IO;
-using System.Reflection;
-using System.Workflow.ComponentModel.Compiler;
+using System.Workflow.ComponentModel;
 using System.Workflow.ComponentModel.Design;
-using System.Windows.Forms;
+
+using ICSharpCode.Core;
+using ICSharpCode.SharpDevelop;
+using ICSharpCode.SharpDevelop.Gui;
+using ICSharpCode.SharpDevelop.Dom;
+using ICSharpCode.NRefactory;
+using ICSharpCode.NRefactory.Ast;
+using ICSharpCode.NRefactory.Visitors;
 #endregion 
 
-namespace WorkflowDesigner
+namespace WorkflowDesigner.Loaders
 {
-	public class DefaultMemberRelationshipService : MemberRelationshipService
+	/// <summary>
+	/// Description of CodeDesignerLoader.
+	/// </summary>
+	public class CodeDesignerLoader : BasicWorkflowDesignerLoader
 	{
-
-		public override bool SupportsRelationship(MemberRelationship source, MemberRelationship relationship)
+		public CodeDesignerLoader(IViewContent viewContent) : base(viewContent)
 		{
-			return true;
 		}
-		protected override MemberRelationship GetRelationship(MemberRelationship source)
+	
+		protected override void Initialize()
 		{
-			return base.GetRelationship(source);
-		}
+			base.Initialize();
+
+			LoaderHost.AddService(typeof(IMemberCreationService), new MemberCreationService(LoaderHost));
+			LoaderHost.AddService(typeof(IEventBindingService), new CSharpWorkflowDesignerEventBindingService(LoaderHost, ViewContent.PrimaryFileName));
 		}
 
-	/// <summary>
-	/// Description of CodeDomLoader.
-	/// </summary>
-	public class NRefactoryDesignerLoader : CodeDomDesignerLoader
+		protected override void DoPerformLoad(IDesignerSerializationManager serializationManager)
 		{
-		TextEditorControl textEditorControl;
-		//IDesignerGenerator    generator = new CSharpDesignerGenerator();
-		IViewContent viewContent;
 
-		#region Constructors
-		public NRefactoryDesignerLoader(TextEditorControl textEditorControl, IViewContent viewContent) : base()
-		{
-			this.textEditorControl = textEditorControl;
-			this.viewContent = viewContent;
-		}
-		#endregion
+			// Step 1, Get the CodeDom
+			CodeCompileUnit ccu = Parse();
 			
-		CodeDomProvider codeDomProvider = Microsoft.CSharp.CSharpCodeProvider.CreateProvider("CSharp");
-		protected override CodeDomProvider CodeDomProvider {
-			get {
-				return codeDomProvider;
-			}
-		}
+			// Step 2, Find the first class
+			CodeTypeDeclaration cdt = ccu.Namespaces[0].Types[0];
 			
-		protected override ITypeResolutionService TypeResolutionService {
-			get {
-				return GetService(typeof(ITypeResolutionService)) as ITypeResolutionService;
-			}
-		}
+			TypeResolutionService srv = GetService(typeof(ITypeResolutionService)) as TypeResolutionService;
+			Type t = srv.GetType(cdt.BaseTypes[0].BaseType);
+			if (t == null)
+				throw new WorkflowDesignerLoadException("Unable to resolve type " + cdt.BaseTypes[0].BaseType);
 				
+			// Step 3, Deserialize it!
+			TypeCodeDomSerializer cds = serializationManager.GetSerializer(t, typeof(TypeCodeDomSerializer)) as TypeCodeDomSerializer;
 
-		protected override void Write(CodeCompileUnit unit)
-		{
-			LoggingService.Debug("NRefactoryDesignerLoader.Write()");
-			throw new NotImplementedException();
-		}
+			// Step 4, load up the designer.
+			Activity rootActivity = null;
+			rootActivity = cds.Deserialize(serializationManager, cdt) as Activity;
+			rootActivity.Name = cdt.Name;
 
-		protected override void Initialize()
-		{
-			ITypeProvider typeProvider = TypeProviderService.GetTypeProvider(ProjectService.OpenSolution.FindProjectContainingFile(viewContent.PrimaryFileName));
-			try {
-				typeProvider.GetType("System.ComponentModel.Design.Serialization.CodeDomSerializer", true);			
-			} catch (Exception ex) {
-				MessageService.ShowErrorFormatted("Unable to find class CodeDomSerializer, make sure the project has a reference to assembly System.Design");
-				throw ex;
-			}
+			LoaderHost.Container.Add(rootActivity, rootActivity.QualifiedName);
 			
-			LoaderHost.AddService(typeof(ITypeProvider), typeProvider);
-			LoaderHost.AddService(typeof(IIdentifierCreationService), new IdentifierCreationService());
-			LoaderHost.AddService(typeof(IMemberCreationService), new MemberCreationService(LoaderHost));
-			LoaderHost.AddService(typeof(IEventBindingService), new CSharpWorkflowDesignerEventBindingService(LoaderHost, viewContent.PrimaryFileName));
-			LoaderHost.AddService(typeof(IToolboxService), new WorkflowToolboxService(LoaderHost));
-			LoaderHost.AddService(typeof(MemberRelationshipService), new DefaultMemberRelationshipService());
-			LoaderHost.AddService(typeof(IMenuCommandService), new WorkflowMenuCommandService(LoaderHost));
-			LoaderHost.AddService(typeof(ITypeResolutionService), new TypeResolutionService(ProjectService.OpenSolution.FindProjectContainingFile(this.textEditorControl.FileName),LoaderHost));
-			LoaderHost.AddService(typeof(IPropertyValueUIService), new PropertyValueUIService());
+			SetBaseComponentClassName(ccu.Namespaces[0].Name + "." + cdt.Name);
 			
-			base.Initialize();
 		}
 
-		
-		#region Taken from FormDesigner.NRefactoryDesignerLoad to get a CodeCompileUnit for the activity.
-		string lastTextContent;
-		protected override CodeCompileUnit Parse()
+		protected override void DoPerformFlush(IDesignerSerializationManager serializationManager)
 		{
-			LoggingService.Debug("NRefactoryDesignerLoader.Parse()");
 			
-			lastTextContent = textEditorControl.Document.TextContent;
+		}
+		
 		
-			ParseInformation parseInfo = ParserService.GetParseInformation(textEditorControl.FileName);
+		#region Taken from FormDesigner.NRefactoryDesignerLoad to get a single CodeCompileUnit for the activity.
+		protected CodeCompileUnit Parse()
+		{
+			ParseInformation parseInfo = ParserService.GetParseInformation(FileName);
 			
 			IClass formClass;
 			bool isFirstClassInFile;
@@ -191,17 +156,6 @@ namespace WorkflowDesigner
 			visitor.EnvironmentInformationProvider = new ICSharpCode.SharpDevelop.Dom.NRefactoryResolver.NRefactoryInformationProvider(formClass.ProjectContent);
 			visitor.VisitCompilationUnit(combinedCu, null);
 			
-			// output generated CodeDOM to the console :
-			#if DEBUG
-//			if ((Control.ModifierKeys & Keys.Control) == Keys.Control) {
-//				CodeDomVerboseOutputGenerator outputGenerator = new CodeDomVerboseOutputGenerator();
-//				outputGenerator.GenerateCodeFromMember(visitor.codeCompileUnit.Namespaces[0].Types[0], Console.Out, null);
-//				this.CodeDomProvider.GenerateCodeFromCompileUnit(visitor.codeCompileUnit, Console.Out, null);
-//			}
-			#endif
-			
-			LoggingService.Debug("NRefactoryDesignerLoader.Parse() finished");
-			
 			if (!isFirstClassInFile) {
 				MessageService.ShowWarning("The form must be the first class in the file in order for form resources be compiled correctly.\n" +
 				                           "Please move other classes below the form class definition or move them to other files.");
@@ -212,11 +166,6 @@ namespace WorkflowDesigner
 		
 		public static IList<IClass> FindFormClassParts(ParseInformation parseInfo, out IClass formClass, out bool isFirstClassInFile)
 		{
-			#if DEBUG
-			if ((Control.ModifierKeys & (Keys.Alt | Keys.Control)) == (Keys.Alt | Keys.Control)) {
-				System.Diagnostics.Debugger.Break();
-			}
-			#endif
 			
 			formClass = null;
 			isFirstClassInFile = true;
@@ -317,5 +266,6 @@ namespace WorkflowDesigner
 		}
 		
 		#endregion
+		
 	}
 }

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Loaders/WorkflowDesignerLoadException.cs

@@ -8,7 +8,7 @@
 using System;
 using System.Runtime.Serialization;
 
-namespace WorkflowDesigner
+namespace WorkflowDesigner.Loaders
 {
 	/// <summary>
 	/// Description of WorkflowDesignerLoaderException.

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Loaders/XomlCodeSeparationDesignerLoader.cs

@@ -20,7 +20,7 @@ using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor;
 #endregion
 
-namespace WorkflowDesigner
+namespace WorkflowDesigner.Loaders
 {
 	/// <summary>
 	/// Description of XomlCodeSeparationDesignerLoader.
@@ -29,7 +29,7 @@ namespace WorkflowDesigner
 	{
 		private string codeFileName;
 		
-		public XomlCodeSeparationDesignerLoader(IViewContent viewContent, string fileName, Stream stream, string codeFileName) : base(viewContent, fileName, stream)
+		public XomlCodeSeparationDesignerLoader(IViewContent viewContent, Stream stream, string codeFileName) : base(viewContent, stream)
 		{
 			this.codeFileName = codeFileName;
 		}
@@ -43,14 +43,12 @@ namespace WorkflowDesigner
 			LoaderHost.AddService(typeof(IEventBindingService), new CSharpWorkflowDesignerEventBindingService(LoaderHost,codeFileName));
 		}
 		
-		protected override void Load(IDesignerSerializationManager serializationManager)
+		protected override void DoPerformLoad(IDesignerSerializationManager serializationManager)
 		{
 			IWorkflowDesignerEventBindingService srv = LoaderHost.GetService(typeof(IEventBindingService)) as IWorkflowDesignerEventBindingService;
 			srv.UpdateCodeCompileUnit();
 			
-			LoadFromXoml(serializationManager);
-			
-			LoaderHost.Activate();
+			LoadXoml(serializationManager);
 		}
       
 

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Loaders/XomlDesignerLoader.cs

@@ -28,28 +28,21 @@ using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.Dom;
 #endregion
 
-namespace WorkflowDesigner
+namespace WorkflowDesigner.Loaders
 {
 	/// <summary>
 	/// Description of XomlDesignerLoader.
 	/// </summary>
-	public class XomlDesignerLoader : WorkflowDesignerLoader
+	public class XomlDesignerLoader : BasicWorkflowDesignerLoader
 	{
 		private string xoml = string.Empty;
-		private StringBuilder rules;
-		private string fileName = string.Empty;
-		private string rulesFileName = string.Empty;
-		private IViewContent viewContent;
 		
-		public XomlDesignerLoader(IViewContent viewContent)
+		public XomlDesignerLoader(IViewContent viewContent) : base(viewContent)
 		{
-			this.viewContent = viewContent;
 		}
 
-		public XomlDesignerLoader(IViewContent viewContent, string fileName, Stream stream) : this(viewContent)
+		public XomlDesignerLoader(IViewContent viewContent, Stream stream) : this(viewContent)
 		{
-			this.fileName = fileName;
-			rulesFileName = Path.Combine(Path.GetDirectoryName(fileName), Path.GetFileNameWithoutExtension(fileName) + ".rules");
 			Encoding encoding = ICSharpCode.SharpDevelop.ParserService.DefaultFileEncoding;
 			xoml = ICSharpCode.TextEditor.Util.FileReader.ReadFileContent(stream, ref encoding, encoding);
 		}
@@ -59,50 +52,8 @@ namespace WorkflowDesigner
 			set { xoml = value; }
 		}
 		
-		public override string FileName {
-			get {
-				return fileName;
-			}
-		}
-		
-		public IProject Project {
-			get {
-				return ProjectService.OpenSolution.FindProjectContainingFile(fileName);
-			}
-		}
-		
-		public override TextReader GetFileReader(string filePath)
-		{
-			return new StringReader(rules.ToString());
-		}
-		
-		public override TextWriter GetFileWriter(string filePath)
-		{
-			if (rules == null) {
-				rules = new StringBuilder();
-				CreateRulesProjectItem();
-			}
-			
-			return new StringWriter(rules, CultureInfo.CurrentCulture);
-		}
-		
-		private void CreateRulesProjectItem()
-		{
-			IProject project = ProjectService.OpenSolution.FindProjectContainingFile(this.fileName);
-			if (project != null){
-				if (!project.IsFileInProject(rulesFileName)) {
-					FileProjectItem fpi = project.FindFile(fileName);
-					FileProjectItem rfpi = new FileProjectItem(project,ItemType.EmbeddedResource);
-					rfpi.FileName = Path.Combine(Path.GetDirectoryName(fileName), Path.GetFileName(rulesFileName));
-					rfpi.DependentUpon = Path.GetFileName(fileName);
-					ProjectService.AddProjectItem(project,  rfpi);
-					ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
-					project.Save();
-				}
-			}
-		}
 		
-		protected override void PerformFlush(IDesignerSerializationManager serializationManager)
+		protected override void DoPerformFlush(IDesignerSerializationManager serializationManager)
 		{
 			Activity rootActivity = LoaderHost.RootComponent as Activity;
 			if (rootActivity != null) {
@@ -116,41 +67,14 @@ namespace WorkflowDesigner
 					xmlWriter.Close();
 				}
 			}
-			
-			// Update the rules if any exist.
-			if ((rules != null) && (rules.Length > 0))
-				File.WriteAllText(rulesFileName, rules.ToString());
-			
 		}
 		
-		
-		protected override void Initialize()
-		{
-
-			LoaderHost.AddService(typeof(IToolboxService), new WorkflowToolboxService(LoaderHost));
-			LoaderHost.AddService(typeof(ITypeProvider), TypeProviderService.GetTypeProvider(Project));
-			LoaderHost.AddService(typeof(IMenuCommandService), new WorkflowMenuCommandService(LoaderHost));
-			LoaderHost.AddService(typeof(ITypeResolutionService), new TypeResolutionService(ProjectService.OpenSolution.FindProjectContainingFile(this.FileName),LoaderHost));
-			LoaderHost.AddService(typeof(IPropertyValueUIService), new PropertyValueUIService());
-
-			base.Initialize();
-			
-		}
-
-		protected override void PerformLoad(IDesignerSerializationManager serializationManager)
+		protected override void DoPerformLoad(IDesignerSerializationManager serializationManager)
 		{
-			base.PerformLoad(serializationManager);
-			Load(serializationManager);
+			LoadXoml(serializationManager);
 		}
 		
-		
-		protected virtual void Load(IDesignerSerializationManager serializationManager)
-		{
-			LoadFromXoml(serializationManager);
-			LoaderHost.Activate();
-		}
-		
-		protected void LoadFromXoml(IDesignerSerializationManager serializationManager)
+		protected void LoadXoml(IDesignerSerializationManager serializationManager)
 		{
 			// get the root activity from the xml.
 			XmlReader  reader = new XmlTextReader(new StringReader(xoml));
@@ -169,12 +93,6 @@ namespace WorkflowDesigner
 			
 			SetBaseComponentClassName(rootActivity.GetValue(WorkflowMarkupSerializer.XClassProperty) as string);
 			
-			// Load the rules
-			if (File.Exists(rulesFileName)) {
-				rules = new StringBuilder(File.ReadAllText(rulesFileName));
-				CreateRulesProjectItem();
-			}
-			
 		}
 		
 		protected void AddChildren(CompositeActivity compositeActivity)
@@ -188,22 +106,5 @@ namespace WorkflowDesigner
 			}
 		}
 		
-		public override void Dispose()
-		{
-			try {
-				// Remove all the services from the from the host designer.
-				if (LoaderHost != null)	{
-					LoaderHost.RemoveService(typeof(IToolboxService));
-					LoaderHost.RemoveService(typeof(ITypeProvider));
-					LoaderHost.RemoveService(typeof(IEventBindingService));
-					LoaderHost.RemoveService(typeof(IMemberCreationService));
-					LoaderHost.RemoveService(typeof(IMenuCommandService));
-					LoaderHost.RemoveService(typeof(IPropertyValueUIService));
-					LoaderHost.RemoveService(typeof(ITypeResolutionService));
-				}
-			} finally {
-				base.Dispose();
-			}
-		}
 	}
 }

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/PrimaryView/PrimaryViewContent.cs

@@ -14,6 +14,8 @@ using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.SharpDevelop.Project;
 
+using WorkflowDesigner.Loaders;
+
 namespace WorkflowDesigner
 {
 	/// <summary>
@@ -54,13 +56,13 @@ namespace WorkflowDesigner
 				string codeFileName = file.FileName + "." + project.LanguageProperties.CodeDomProvider.FileExtension;
 				FileProjectItem dfpi = project.FindFile(codeFileName);
 				if (dfpi.DependentUpon == Path.GetFileName(fpi.VirtualName))	{
-					loader = new XomlCodeSeparationDesignerLoader(this, file.FileName, stream, dfpi.FileName);
+					loader = new XomlCodeSeparationDesignerLoader(this, stream, dfpi.FileName);
 				}
 			}
 			
 			// No separation file so the nocode loader will be used.
 			if (loader == null)
-				loader = new XomlDesignerLoader(this, file.FileName, stream);
+				loader = new XomlDesignerLoader(this, stream);
 
 			control.LoadWorkflow(loader);
 		}

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/SecondaryView/SecondaryViewContent.cs

@@ -12,6 +12,8 @@ using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor;
 using ICSharpCode.SharpDevelop.Widgets.SideBar;
+
+using WorkflowDesigner.Loaders;
 #endregion
 
 namespace WorkflowDesigner
@@ -21,17 +23,13 @@ namespace WorkflowDesigner
 	/// </summary>
 	public class WorkflowDesignerSecondaryViewContent : AbstractSecondaryViewContent, IHasPropertyContainer
 	{
-		IViewContent viewContent;
 		ViewContentControl control;
 
 		#region Constructors
 		public WorkflowDesignerSecondaryViewContent(IViewContent primaryViewContent) : base(primaryViewContent)
 		{
 			this.TabPageText = "Workflow";
-			this.viewContent = primaryViewContent;
 			control = new ViewContentControl(primaryViewContent);
-			
-			
 		}
 		#endregion
 		
@@ -52,7 +50,7 @@ namespace WorkflowDesigner
 
 		protected override void LoadFromPrimary()
 		{
-			control.LoadWorkflow(new NRefactoryDesignerLoader(((ITextEditorControlProvider)viewContent).TextEditorControl, viewContent));
+			control.LoadWorkflow(new CodeDesignerLoader(this.PrimaryViewContent));
 		}
 		
 		protected override void SaveToPrimary()

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Services/EventBindingService/WorkflowDesignerEventBindingService.cs

@@ -32,6 +32,8 @@ using ICSharpCode.NRefactory;
 using ICSharpCode.NRefactory.Ast;
 using ICSharpCode.SharpDevelop.Project;
 
+using WorkflowDesigner.Loaders;
+
 #endregion
 
 namespace WorkflowDesigner

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Services/IdentifierCreationService.cs

@@ -1,63 +0,0 @@
-// <file>
-//     <copyright see="prj:///doc/copyright.txt"/>
-//     <license see="prj:///doc/license.txt"/>
-//     <owner name="Russell Wilkins" email=""/>
-//     <version>$Revision$</version>
-// </file>
-
-#region Using
-using System;
-using System.Workflow.ComponentModel.Design;
-using ICSharpCode.Core;
-using System.Collections;
-using System.Collections.Generic;
-using System.Workflow.Activities;
-using System.Workflow.ComponentModel;
-using System.ComponentModel;
-using System.Text;
-#endregion
-
-namespace WorkflowDesigner
-{
-	/// <summary>
-	/// Description of IdentifierCreationService.
-	/// </summary>
-	public class IdentifierCreationService : IIdentifierCreationService
-	{
-		public IdentifierCreationService()
-		{
-		}
-		
-		public void EnsureUniqueIdentifiers(CompositeActivity parentActivity, System.Collections.ICollection childActivities)
-		{
-			if (parentActivity == null)
-				throw new ArgumentNullException("parentActivity");
-			
-			if (childActivities == null)
-				throw new ArgumentNullException("childActivities");
-			
-			LoggingService.DebugFormatted("EnsureUniqueIdentifiers(parentActivity={0}, childActivities={1})", parentActivity, childActivities);
-			
-			foreach (Activity activity in childActivities)
-			{
-				LoggingService.DebugFormatted("{0}", activity.Name);
-				// TODO: Something here?
-			}
-			
-		}
-		
-		public void ValidateIdentifier(Activity activity, string identifier)
-		{
-			if (activity == null)
-				throw new ArgumentNullException("activity");
-			
-			if (identifier == null)
-				throw new ArgumentNullException("identifier");
-
-			LoggingService.DebugFormatted("ValidateIdentifier(ValidateIdentifier={0}, identifier={1})", activity, identifier);
-			
-			//TODO: Something here?
-		}
-		
-	}
-}

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Services/MemberCreationService.cs

@@ -21,6 +21,8 @@ namespace WorkflowDesigner
 	/// </summary>
 	public class MemberCreationService : IMemberCreationService, IServiceProvider
 	{
+		private string typeName = string.Empty;
+		
 		#region IServiceProvider implementation
 		IServiceProvider provider;
 		public object GetService(Type serviceType)
@@ -52,7 +54,7 @@ namespace WorkflowDesigner
 		public void UpdateTypeName(string oldClassName, string newClassName)
 		{
 			LoggingService.DebugFormatted("UpdateTypeName(oldClassName={0}, newClassName={1})", oldClassName, newClassName);
-			throw new NotImplementedException();
+			typeName = newClassName;
 		}
 		
 		public void UpdateBaseType(string className, Type baseType)

src/AddIns/DisplayBindings/WorkflowDesigner/Project/Src/Services/TypeProviderService.cs

@@ -85,7 +85,7 @@ namespace WorkflowDesigner
 			typeProvider.AddAssembly(typeof(System.Object).Assembly);
 			typeProvider.AddAssembly(typeof(System.ComponentModel.Design.Serialization.CodeDomSerializer).Assembly);
 			typeProvider.AddAssembly(typeof(System.Workflow.ComponentModel.DependencyObject).Assembly);
-			typeProvider.AddAssembly(typeof(System.Workflow.Activities.CodeActivity).Assembly);
+			typeProvider.AddAssembly(typeof(System.Workflow.Activities.SequentialWorkflowActivity).Assembly);
 			typeProvider.AddAssembly(typeof(System.Workflow.Runtime.WorkflowRuntime).Assembly);
 
 			// Just return the basic provider if not related to a project.
@@ -221,15 +221,19 @@ namespace WorkflowDesigner
 				files.AddRange(GetRelatedFiles(project, item.FileName));
 			}
 
+			CodeCompileUnit ccu;
+	
+			if (files.Count > 0) {
 				string[] s = new string[files.Count];
 				for (int i = 0; i < files.Count; i++)
 					s[i] = files[i];
 				
-			CodeCompileUnit ccu = ParseXoml(project, s);
+				ccu = ParseXoml(project, s);
 				if (ccu != null) {
 					typeProvider.AddCodeCompileUnit(ccu);
 					cp.UserCodeCompileUnits.Add(ccu);
 				}
+			}
 
 			// Now create one ccu for each source file.
 			foreach (ProjectItem item in project.GetItemsOfType(ItemType.Compile)){

src/AddIns/DisplayBindings/WorkflowDesigner/Project/WorkflowDesigner.csproj

@@ -93,7 +93,8 @@
     <Compile Include="Src\Gui\ViewContentControl.Designer.cs">
       <DependentUpon>ViewContentControl.cs</DependentUpon>
     </Compile>
-    <Compile Include="Src\Loaders\NRefactoryDesignerLoader.cs" />
+    <Compile Include="Src\Loaders\BasicWorkflowDesignerLoader.cs" />
+    <Compile Include="Src\Loaders\CodeDesignerLoader.cs" />
     <Compile Include="Src\Loaders\WorkflowDesignerLoadException.cs" />
     <Compile Include="Src\Loaders\XomlCodeSeparationDesignerLoader.cs" />
     <Compile Include="Src\Loaders\XomlDesignerLoader.cs" />
@@ -105,7 +106,6 @@
     <Compile Include="Src\Services\EventBindingService\EventPropertyDescriptor.cs" />
     <Compile Include="Src\Services\EventBindingService\IWorkflowDesignerEventBindingService.cs" />
     <Compile Include="Src\Services\EventBindingService\WorkflowDesignerEventBindingService.cs" />
-    <Compile Include="Src\Services\IdentifierCreationService.cs" />
     <Compile Include="Src\Services\MemberCreationService.cs" />
     <Compile Include="Src\Services\PropertyValueUIService.cs" />
     <Compile Include="Src\Services\TypeProviderService.cs" />