1 files changed, 109 insertions, 0 deletions
diff --git a/main/src/addins/AspNet/WebForms/CSharp/CSharpProjector.cs b/main/src/addins/AspNet/WebForms/CSharp/CSharpProjector.cs
new file mode 100644
index 0000000000..3bf093be49
--- /dev/null
+++ b/main/src/addins/AspNet/WebForms/CSharp/CSharpProjector.cs
@@ -0,0 +1,109 @@
+//
+// CSharpProjector.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 System.Text;
+using System.Collections.Generic;
+using MonoDevelop.Ide.Editor;
+using MonoDevelop.AspNet.WebForms.Dom;
+using System.Threading.Tasks;
+using MonoDevelop.Ide.Editor.Projection;
+using MonoDevelop.Core.Text;
+
+namespace MonoDevelop.AspNet.WebForms.CSharp
+{
+	public class CSharpProjector
+	{
+		public Task<Projection> CreateProjection (DocumentInfo info, IReadonlyTextDocument data, bool buildExpressions)
+		{
+			if (info == null)
+				throw new ArgumentNullException ("info");
+			if (data == null)
+				throw new ArgumentNullException ("data");
+			var document = new StringBuilder ();
+
+			WriteUsings (info.Imports, document);
+			var segBuilder = System.Collections.Immutable.ImmutableList<ProjectedSegment>.Empty.ToBuilder ();
+
+			foreach (var node in info.XScriptBlocks) {
+				var start = data.LocationToOffset (node.Region.Begin.Line, node.Region.Begin.Column) + 2;
+				var end = data.LocationToOffset (node.Region.End.Line, node.Region.End.Column) - 2;
+
+				segBuilder.Add (new ProjectedSegment (start, document.Length, end - start));
+
+				document.AppendLine (data.GetTextBetween (start, end));
+			}
+			if (buildExpressions) {
+				WriteClassDeclaration (info, document);
+				document.AppendLine ("{");
+				document.AppendLine ("void Generated ()");
+				document.AppendLine ("{");
+				//Console.WriteLine ("start:" + location.BeginLine  +"/" +location.BeginColumn);
+
+				foreach (var node in info.XExpressions) {
+					bool isBlock = node is WebFormsRenderBlock;
+
+					var start = data.LocationToOffset (node.Region.Begin.Line, node.Region.Begin.Column) + 2;
+					var end = data.LocationToOffset (node.Region.End.Line, node.Region.End.Column) - 2;
+
+					if (!isBlock) {
+						document.Append ("WriteLine (");
+						start += 1;
+					}
+
+					string expr = data.GetTextBetween (start, end);
+					segBuilder.Add (new ProjectedSegment (start, document.Length, expr.Length));
+					document.Append (expr);
+					if (!isBlock)
+						document.Append (");");
+				}
+				document.AppendLine ("}");
+				document.AppendLine ("}");
+			}
+			return Task.FromResult(new Projection (
+				TextEditorFactory.CreateNewDocument (new StringTextSource (document.ToString ()), info.AspNetDocument.FileName + ".g.cs", "text/x-csharp"),
+				segBuilder.ToImmutable ()
+			));
+		}
+
+		static void WriteUsings (IEnumerable<string> usings, StringBuilder builder)
+		{
+			foreach (var u in usings) {
+				builder.Append ("using ");
+				builder.Append (u);
+				builder.AppendLine (";");
+			}
+		}
+
+		static void WriteClassDeclaration (DocumentInfo info, StringBuilder builder)
+		{
+			builder.Append ("partial class ");
+			builder.Append (info.ClassName);
+			builder.Append (" : ");
+			builder.AppendLine (info.BaseType);
+		}
+	}
+}
+