1 files changed, 143 insertions, 0 deletions
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedDocumentContext.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedDocumentContext.cs
new file mode 100644
index 0000000000..4571fefeb8
--- /dev/null
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/Projection/ProjectedDocumentContext.cs
@@ -0,0 +1,143 @@
+//
+// ProjectedDocumentContext.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@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 MonoDevelop.Ide.Editor;
+using System.Collections.Immutable;
+using MonoDevelop.Core.Text;
+using MonoDevelop.Ide.Gui;
+using MonoDevelop.Ide.TypeSystem;
+
+namespace MonoDevelop.Ide.Editor.Projection
+{
+
+	class ProjectedDocumentContext : DocumentContext
+	{
+		DocumentContext originalContext;
+		TextEditor projectedEditor;
+		ParsedDocument parsedDocument;
+
+		public TextEditor ProjectedEditor {
+			get {
+				return projectedEditor;
+			}
+		}
+
+		public DocumentContext OriginalContext {
+			get {
+				return originalContext;
+			}
+		}
+
+		Microsoft.CodeAnalysis.Document projectedDocument;
+
+		public ProjectedDocumentContext (TextEditor projectedEditor, DocumentContext originalContext)
+		{
+			if (projectedEditor == null)
+				throw new ArgumentNullException ("projectedEditor");
+			if (originalContext == null)
+				throw new ArgumentNullException ("originalContext");
+			this.projectedEditor = projectedEditor;
+			this.originalContext = originalContext;
+
+			if (originalContext.Project != null) {
+				var originalProjectId = TypeSystemService.GetProjectId (originalContext.Project);
+				if (originalProjectId != null) {
+					var originalProject = TypeSystemService.Workspace.CurrentSolution.GetProject (originalProjectId);
+					if (originalProject != null) {
+						projectedDocument = originalProject.AddDocument (
+							projectedEditor.FileName,
+							projectedEditor
+						);
+					}
+				}
+			}
+
+			projectedEditor.TextChanged += delegate(object sender, TextChangeEventArgs e) {
+				if (projectedDocument != null)
+					projectedDocument = projectedDocument.WithText (projectedEditor);
+				ReparseDocument ();
+			};
+
+			ReparseDocument ();
+		}
+
+		#region implemented abstract members of DocumentContext
+		public override void AttachToProject (MonoDevelop.Projects.Project project)
+		{
+		}
+
+		public override void ReparseDocument ()
+		{
+			var options = new ParseOptions {
+				FileName = projectedEditor.FileName,
+				Content = projectedEditor,
+				Project = Project,
+				RoslynDocument = projectedDocument
+			}; 
+			parsedDocument = TypeSystemService.ParseFile (options, projectedEditor.MimeType).Result;
+
+			base.OnDocumentParsed (EventArgs.Empty);
+		}
+
+		public override Microsoft.CodeAnalysis.Options.OptionSet GetOptionSet ()
+		{
+			return originalContext.GetOptionSet ();
+		}
+
+		public override MonoDevelop.Ide.TypeSystem.ParsedDocument UpdateParseDocument ()
+		{
+			ReparseDocument ();
+			return parsedDocument;
+		}
+
+		public override string Name {
+			get {
+				return projectedEditor.FileName;
+			}
+		}
+
+		public override MonoDevelop.Projects.Project Project {
+			get {
+				return originalContext.Project;
+			}
+		}
+
+		public override Microsoft.CodeAnalysis.Document AnalysisDocument {
+			get {
+
+				return projectedDocument;
+			}
+		}
+
+		public override MonoDevelop.Ide.TypeSystem.ParsedDocument ParsedDocument {
+			get {
+				return parsedDocument;
+			}
+		}
+		#endregion
+	}
+}
+