1 files changed, 140 insertions, 0 deletions
diff --git a/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/ITextDocument.cs b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/ITextDocument.cs
new file mode 100644
index 0000000000..b2ed856224
--- /dev/null
+++ b/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/ITextDocument.cs
@@ -0,0 +1,140 @@
+//
+// ITextDocument.cs
+//
+// Author:
+//       Mike Krüger <mkrueger@xamarin.com>
+//
+// Copyright (c) 2014 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.Core.Text;
+using System.Text;
+using MonoDevelop.Core;
+
+namespace MonoDevelop.Ide.Editor
+{
+	public interface ITextDocument : IReadonlyTextDocument
+	{
+		/// <summary>
+		/// Gets/Sets the text of the whole document..
+		/// </summary>
+		new string Text { get; set; } // hides ITextSource.Text to add the setter
+
+		/// <summary>
+		/// Gets or Sets a character at the specified position in the document.
+		/// </summary>
+		/// <paramref name="offset">The index of the character to get.</paramref>
+		/// <exception cref="ArgumentOutOfRangeException">Offset is outside the valid range (0 to TextLength-1).</exception>
+		/// <returns>The character at the specified position.</returns>
+		/// <remarks>This is the same as Text[offset], but is more efficient because
+		///  it doesn't require creating a String object.</remarks>
+		new char this [int offset] { get; set; }
+
+		new bool IsReadOnly { get; set; }
+
+		new FilePath FileName { get; set; }
+
+		new string MimeType { get; set; }
+
+		new bool UseBOM { get; set; }
+
+		new Encoding Encoding { get; set; }
+
+		void InsertText (int offset, string text);
+
+		void InsertText (int offset, ITextSource text);
+
+		void RemoveText (int offset, int length);
+
+		void ReplaceText (int offset, int length, string value);
+
+		void ReplaceText (int offset, int length, ITextSource value);
+
+		bool IsInAtomicUndo {
+			get;
+		}
+
+		IDisposable OpenUndoGroup();
+
+		/// <summary>
+		/// This event is called directly before a change is applied to the document.
+		/// </summary>
+		/// <remarks>
+		/// It is invalid to modify the document within this event handler.
+		/// Aborting the change (by throwing an exception) is likely to cause corruption of data structures
+		/// that listen to the Changing and Changed events.
+		/// </remarks>
+		event EventHandler<TextChangeEventArgs> TextChanging;
+
+		/// <summary>
+		/// This event is called directly after a change is applied to the document.
+		/// </summary>
+		/// <remarks>
+		/// It is invalid to modify the document within this event handler.
+		/// Aborting the event handler (by throwing an exception) is likely to cause corruption of data structures
+		/// that listen to the Changing and Changed events.
+		/// </remarks>
+		event EventHandler<TextChangeEventArgs> TextChanged;
+
+		event EventHandler FileNameChanged;
+		event EventHandler MimeTypeChanged;
+
+		/// <summary>
+		/// Creates an immutable snapshot of this document.
+		/// </summary>
+		IReadonlyTextDocument CreateDocumentSnapshot();
+
+//		event EventHandler<LineEventArgs> LineChanged;
+//		event EventHandler<LineEventArgs> LineInserted;
+//		event EventHandler<LineEventArgs> LineRemoved;
+	}
+
+	public static class DocumentExtensions
+	{
+		public static void RemoveText (this ITextDocument document, ISegment segment)
+		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			document.RemoveText (segment.Offset, segment.Length);
+		}
+
+		public static void ReplaceText (this ITextDocument document, ISegment segment, string value)
+		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			document.ReplaceText (segment.Offset, segment.Length, value);
+		}
+
+		public static void ReplaceText (this ITextDocument document, ISegment segment, ITextSource textSource)
+		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			document.ReplaceText (segment.Offset, segment.Length, textSource);
+		}
+
+		public static void Save (this ITextDocument document)
+		{
+			if (document == null)
+				throw new ArgumentNullException ("document");
+			document.WriteTextTo (document.FileName); 
+		}
+	}
+}
+\ No newline at end of file