1 files changed, 118 insertions, 0 deletions
diff --git a/main/src/addins/AspNet/Commands/MethodDeclarationAtCaret.cs b/main/src/addins/AspNet/Commands/MethodDeclarationAtCaret.cs
new file mode 100644
index 0000000000..83ba6b4db2
--- /dev/null
+++ b/main/src/addins/AspNet/Commands/MethodDeclarationAtCaret.cs
@@ -0,0 +1,118 @@
+//
+// MethodAtCaret.cs
+//
+// Author:
+//       Matt Ward <matt.ward@xamarin.com>
+//
+// Copyright (c) 2015 Xamarin Inc. (http://xamarin.com)
+//
+// 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.Linq;
+using MonoDevelop.Ide.Gui;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.Text;
+using Microsoft.CodeAnalysis.CSharp;
+
+namespace MonoDevelop.AspNet.Commands
+{
+	class MethodDeclarationAtCaret
+	{
+		MethodDeclarationAtCaret ()
+		{
+		}
+
+		public static readonly MethodDeclarationAtCaret NullMethodDeclaration = new MethodDeclarationAtCaret ();
+
+		public bool IsMethodFound {
+			get {
+				return TypeDeclaration != null && MethodDeclaration != null;
+			}
+		}
+
+		public TypeDeclarationSyntax TypeDeclaration { get; private set; }
+		public MethodDeclarationSyntax MethodDeclaration { get; private set; }
+
+		public string Name {
+			get {
+				if (MethodDeclaration != null)
+					return MethodDeclaration.Identifier.ValueText;
+				return String.Empty;
+			}
+		}
+
+		public static MethodDeclarationAtCaret Create (MonoDevelop.Ide.Gui.Document doc)
+		{
+			var parsedDocument = doc.AnalysisDocument;
+			if (parsedDocument == null)
+				return NullMethodDeclaration;
+
+			SyntaxNode root = null;
+			if (!parsedDocument.TryGetSyntaxRoot (out root))
+				return NullMethodDeclaration;
+
+			SyntaxNode currentNode;
+			try {
+				int caretOffset = doc.Editor.CaretOffset;
+				currentNode = root.FindNode (TextSpan.FromBounds (caretOffset, caretOffset));
+			} catch (Exception) {
+				return NullMethodDeclaration;
+			}
+
+			var currentType = currentNode.AncestorsAndSelf ().OfType<TypeDeclarationSyntax> ().FirstOrDefault ();
+			var currentMethod = currentNode.AncestorsAndSelf ().OfType<MethodDeclarationSyntax> ().FirstOrDefault ();
+
+			return new MethodDeclarationAtCaret {
+				TypeDeclaration = currentType,
+				MethodDeclaration = currentMethod
+			};
+		}
+
+		public bool IsParentMvcController ()
+		{
+			return TypeDeclaration.Identifier.ValueText.EndsWith ("Controller", StringComparison.OrdinalIgnoreCase);
+		}
+
+		public bool IsMvcViewMethod ()
+		{
+			var correctReturnTypes = new [] { "ActionResult", "ViewResultBase", "ViewResult", "PartialViewResult" };
+
+			string returnTypeName = MethodDeclaration.ReturnType.ToString ();
+
+			return MethodDeclaration.Modifiers.Any (t => t.Kind () == SyntaxKind.PublicKeyword) &&
+				correctReturnTypes.Any (t => t == returnTypeName);
+		}
+
+		public string GetParentMvcControllerName ()
+		{
+			if (TypeDeclaration == null)
+				return String.Empty;
+
+			string controllerName = TypeDeclaration.Identifier.ValueText;
+			int pos = controllerName.LastIndexOf ("Controller", StringComparison.Ordinal);
+			if (pos > 0)
+				controllerName = controllerName.Remove (pos);
+
+			return controllerName;
+		}
+	}
+}
+