Implement method insight.

src/AddIns/BackendBindings/CSharpBinding/Project/CSharpBinding.csproj

@@ -66,6 +66,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Configuration\AssemblyInfo.cs" />
+    <Compile Include="Src\Completion\CSharpInsightItem.cs" />
     <Compile Include="Src\Completion\OverrideCompletionData.cs" />
     <Compile Include="Src\Completion\SegmentTrackingOutputFormatter.cs" />
     <Compile Include="Src\Refactoring\InsertionPoint.cs" />

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Completion/CSharpCompletionBinding.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Linq;
 using CSharpBinding.Parser;
 using ICSharpCode.NRefactory.Completion;
+using ICSharpCode.NRefactory.CSharp;
 using ICSharpCode.NRefactory.CSharp.Completion;
 using ICSharpCode.NRefactory.TypeSystem;
 using ICSharpCode.SharpDevelop;
@@ -45,41 +46,43 @@ namespace CSharpBinding.Completion
 					return false;
 			}
 			ICompilation compilation = SD.ParserService.GetCompilationForFile(editor.FileName);
-			var pc = compilation.MainAssembly.UnresolvedAssembly as IProjectContent;
+			var projectContent = compilation.MainAssembly.UnresolvedAssembly as IProjectContent;
-			if (pc == null)
+			if (projectContent == null)
 				return false;
 			
-			var context = parseInfo.ParsedFile.GetTypeResolveContext(compilation, editor.Caret.Location);
+			var completionContextProvider = new DefaultCompletionContextProvider(editor.Document, parseInfo.ParsedFile);
-			CSharpCompletionEngine cc = new CSharpCompletionEngine(
+			var typeResolveContext = parseInfo.ParsedFile.GetTypeResolveContext(compilation, editor.Caret.Location);
+			var completionFactory = new CSharpCompletionDataFactory(typeResolveContext);
+			CSharpCompletionEngine cce = new CSharpCompletionEngine(
 				editor.Document,
-				new DefaultCompletionContextProvider(editor.Document, parseInfo.ParsedFile),
+				completionContextProvider,
-				new CSharpCompletionDataFactory(context),
+				completionFactory,
-				pc,
+				projectContent,
-				context
+				typeResolveContext
 			);
 			
-			//cc.FormattingPolicy = ?
+			cce.FormattingPolicy = FormattingOptionsFactory.CreateSharpDevelop();
-			cc.EolMarker = DocumentUtilitites.GetLineTerminator(editor.Document, editor.Caret.Line);
+			cce.EolMarker = DocumentUtilitites.GetLineTerminator(editor.Document, editor.Caret.Line);
-			//cc.IndentString = ?
+			cce.IndentString = editor.Options.IndentationString;
 			
 			int startPos, triggerWordLength;
 			IEnumerable<ICompletionData> completionData;
 			if (ctrlSpace) {
-				if (!cc.TryGetCompletionWord(editor.Caret.Offset, out startPos, out triggerWordLength)) {
+				if (!cce.TryGetCompletionWord(editor.Caret.Offset, out startPos, out triggerWordLength)) {
 					startPos = editor.Caret.Offset;
 					triggerWordLength = 0;
 				}
-				completionData = cc.GetCompletionData(startPos, true);
+				completionData = cce.GetCompletionData(startPos, true);
 			} else {
 				startPos = editor.Caret.Offset;
 				if (char.IsLetterOrDigit (completionChar) || completionChar == '_') {
 					if (startPos > 1 && char.IsLetterOrDigit (editor.Document.GetCharAt (startPos - 2)))
 						return false;
-					completionData = cc.GetCompletionData(startPos, false);
+					completionData = cce.GetCompletionData(startPos, false);
 					startPos--;
 					triggerWordLength = 1;
 				} else {
-					completionData = cc.GetCompletionData(startPos, false);
+					completionData = cce.GetCompletionData(startPos, false);
 					triggerWordLength = 0;
 				}
 			}
@@ -90,10 +93,27 @@ namespace CSharpBinding.Completion
 				list.SortItems();
 				list.PreselectionLength = editor.Caret.Offset - startPos;
 				list.PostselectionLength = Math.Max(0, startPos + triggerWordLength - editor.Caret.Offset);
-				list.SuggestedItem = list.Items.FirstOrDefault(i => i.Text == cc.DefaultCompletionString);
+				list.SuggestedItem = list.Items.FirstOrDefault(i => i.Text == cce.DefaultCompletionString);
 				editor.ShowCompletionWindow(list);
 				return true;
 			}
+			
+			if (!ctrlSpace) {
+				// Method Insight
+				var pce = new CSharpParameterCompletionEngine(
+					editor.Document,
+					completionContextProvider,
+					completionFactory,
+					projectContent,
+					typeResolveContext
+				);
+				var provider = pce.GetParameterDataProvider(editor.Caret.Offset, completionChar) as CSharpParameterDataProvider;
+				if (provider != null && provider.items.Count > 0) {
+					var insightWindow = editor.ShowInsightWindow(provider.items);
+					insightWindow.StartOffset = provider.StartOffset;
+					return true;
+				}
+			}
 			return false;
 		}
 	}

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Completion/CSharpCompletionDataFactory.cs

@@ -3,7 +3,9 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using ICSharpCode.NRefactory.Completion;
+using ICSharpCode.NRefactory.CSharp;
 using ICSharpCode.NRefactory.CSharp.Completion;
 using ICSharpCode.NRefactory.CSharp.TypeSystem;
 using ICSharpCode.NRefactory.TypeSystem;
@@ -11,7 +13,7 @@ using ICSharpCode.SharpDevelop;
 
 namespace CSharpBinding.Completion
 {
-	class CSharpCompletionDataFactory : ICompletionDataFactory
+	class CSharpCompletionDataFactory : ICompletionDataFactory, IParameterCompletionDataFactory
 	{
 		readonly CSharpTypeResolveContext contextAtCaret;
 		
@@ -91,7 +93,7 @@ namespace CSharpBinding.Completion
 		
 		public ICompletionData CreateEventCreationCompletionData(string varName, IType delegateType, IEvent evt, string parameterDefinition, IUnresolvedMember currentMember, IUnresolvedTypeDefinition currentType)
 		{
-			throw new NotImplementedException();
+			return new CompletionData("TODO: event creation");
 		}
 		
 		public ICompletionData CreateNewOverrideCompletionData(int declarationBegin, IUnresolvedTypeDefinition type, IMember m)
@@ -101,7 +103,7 @@ namespace CSharpBinding.Completion
 		
 		public ICompletionData CreateNewPartialCompletionData(int declarationBegin, IUnresolvedTypeDefinition type, IUnresolvedMember m)
 		{
-			throw new NotImplementedException();
+			return new CompletionData("TODO: partial completion");
 		}
 		
 		public IEnumerable<ICompletionData> CreateCodeTemplateCompletionData()
@@ -113,5 +115,34 @@ namespace CSharpBinding.Completion
 		{
 			yield break;
 		}
+		
+		#region IParameterCompletionDataFactory implementation
+		IParameterDataProvider IParameterCompletionDataFactory.CreateConstructorProvider(int startOffset, IType type)
+		{
+			IAmbience ambience = AmbienceService.GetCurrentAmbience();
+			return new CSharpParameterDataProvider(startOffset, type.GetConstructors().Select(m => new CSharpInsightItem(m, ambience)));
+		}
+		
+		IParameterDataProvider IParameterCompletionDataFactory.CreateMethodDataProvider(int startOffset, IEnumerable<IMethod> methods)
+		{
+			IAmbience ambience = AmbienceService.GetCurrentAmbience();
+			return new CSharpParameterDataProvider(startOffset, methods.Select(m => new CSharpInsightItem(m, ambience)));
+		}
+		
+		IParameterDataProvider IParameterCompletionDataFactory.CreateDelegateDataProvider(int startOffset, IType type)
+		{
+			return new CSharpParameterDataProvider(startOffset, Enumerable.Empty<CSharpInsightItem>());
+		}
+		
+		IParameterDataProvider IParameterCompletionDataFactory.CreateIndexerParameterDataProvider(int startOffset, IType type, AstNode resolvedNode)
+		{
+			throw new NotImplementedException();
+		}
+		
+		IParameterDataProvider IParameterCompletionDataFactory.CreateTypeParameterDataProvider(int startOffset, IEnumerable<IType> types)
+		{
+			throw new NotImplementedException();
+		}
+		#endregion
 	}
 }

src/AddIns/BackendBindings/CSharpBinding/Project/Src/Completion/CSharpInsightItem.cs

@@ -0,0 +1,86 @@
+// 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 System.Linq;
+using ICSharpCode.NRefactory.Completion;
+using ICSharpCode.NRefactory.TypeSystem;
+using ICSharpCode.SharpDevelop;
+using ICSharpCode.SharpDevelop.Editor.CodeCompletion;
+
+namespace CSharpBinding.Completion
+{
+	sealed class CSharpInsightItem : IInsightItem
+	{
+		public readonly IParameterizedMember Method;
+		readonly IAmbience ambience;
+		
+		public CSharpInsightItem(IParameterizedMember method, IAmbience ambience)
+		{
+			this.Method = method;
+			this.ambience = ambience;
+		}
+		
+		string header;
+		
+		public object Header {
+			get {
+				if (header == null) {
+					ambience.ConversionFlags = ConversionFlags.StandardConversionFlags;
+					header = ambience.ConvertEntity(Method);
+				}
+				return header;
+			}
+		}
+		
+		public object Content {
+			get { return null; }
+		}
+	}
+	
+	sealed class CSharpParameterDataProvider : IParameterDataProvider
+	{
+		readonly int startOffset;
+		internal readonly IReadOnlyList<CSharpInsightItem> items;
+		
+		public CSharpParameterDataProvider(int startOffset, IEnumerable<CSharpInsightItem> items)
+		{
+			this.startOffset = startOffset;
+			this.items = items.ToList();
+		}
+		
+		int IParameterDataProvider.Count {
+			get { return items.Count; }
+		}
+		
+		public int StartOffset {
+			get { return startOffset; }
+		}
+		
+		string IParameterDataProvider.GetHeading(int overload, string[] parameterDescription, int currentParameter)
+		{
+			throw new NotImplementedException();
+		}
+		
+		string IParameterDataProvider.GetDescription(int overload, int currentParameter)
+		{
+			throw new NotImplementedException();
+		}
+		
+		string IParameterDataProvider.GetParameterDescription(int overload, int paramIndex)
+		{
+			throw new NotImplementedException();
+		}
+		
+		int IParameterDataProvider.GetParameterCount(int overload)
+		{
+			throw new NotImplementedException();
+		}
+		
+		bool IParameterDataProvider.AllowParameterList(int overload)
+		{
+			throw new NotImplementedException();
+		}
+	}
+}