Lock view contents when debugger starts and refresh icon since we don't support EnC (yet).

src/AddIns/BackendBindings/Scripting/Test/Utils/MockTextEditor.cs

@@ -62,6 +62,8 @@ namespace ICSharpCode.Scripting.Tests.Utils
 			}
 		}
 		
+		public bool IsReadOnly { get; set; }
+		
 		public int SelectionLength { get; set; }
 		
 		public string SelectedText { get; set; }

src/AddIns/BackendBindings/WixBinding/Test/Utils/MockTextEditor.cs

@@ -110,6 +110,8 @@ namespace WixBinding.Tests.Utils
 			}
 		}
 		
+		public bool IsReadOnly { get; set; }
+		
 		public FileName FileName {
 			get {
 				throw new NotImplementedException();

src/AddIns/BackendBindings/WixBinding/Test/Utils/MockWorkbenchWindow.cs

@@ -69,6 +69,10 @@ namespace WixBinding.Tests.Utils
 			get { return selectWindowMethodCalled; }
 		}
 		
+		public void UpdateActiveViewContent() 
+		{
+		}
+		
 		public event EventHandler ActiveViewContentChanged;
 		
 		protected virtual void OnActiveViewContentChanged(EventArgs e)

src/AddIns/Debugger/Debugger.AddIn/Service/WindowsDebugger.cs

@@ -22,6 +22,8 @@ using ICSharpCode.NRefactory.Ast;
 using ICSharpCode.NRefactory.Visitors;
 using ICSharpCode.SharpDevelop.Bookmarks;
 using ICSharpCode.SharpDevelop.Debugging;
+using ICSharpCode.SharpDevelop.Editor;
+using ICSharpCode.SharpDevelop.Editor.AvalonEdit;
 using ICSharpCode.SharpDevelop.Gui;
 using ICSharpCode.SharpDevelop.Gui.OptionPanels;
 using ICSharpCode.SharpDevelop.Project;
@@ -764,16 +766,59 @@ namespace ICSharpCode.SharpDevelop.Services
 			if (debugger.Processes.Count == 1) {
 				if (DebugStarted != null) {
 					DebugStarted(this, EventArgs.Empty);
+					SetActiveViewsReadonly(true);
 				}
 			}
 			e.Item.LogMessage += LogMessage;
 		}
 		
+		void SetActiveViewsReadonly(bool readOnly)
+		{
+			// TODO: don't forget about EnC
+			//if (DebuggingOptions.Instance.EnableEditAndContinue)
+			//	return;
+			
+			if (WorkbenchSingleton.Workbench == null)
+				return;
+			
+			if (WorkbenchSingleton.Workbench.WorkbenchWindowCollection.Count > 0) {
+				foreach(var window in WorkbenchSingleton.Workbench.WorkbenchWindowCollection) {
+					foreach (var content in window.ViewContents) {
+						if (content is ITextEditorProvider) {
+							((ITextEditorProvider)content).TextEditor.IsReadOnly = readOnly;
+						}
+					}
+					
+					// refresh tab icon
+					window.UpdateActiveViewContent();
+				}
+			}
+			
+			// make readonly the newly opened views
+			if (readOnly)
+				WorkbenchSingleton.Workbench.ViewOpened += OnViewOpened;
+			else
+				WorkbenchSingleton.Workbench.ViewOpened -= OnViewOpened;
+		}
+
+		void OnViewOpened(object sender, ViewContentEventArgs e)
+		{
+			if (!IsDebugging)
+				return;
+			
+			// TODO: don't forget about EnC
+			//if (!DebuggingOptions.Instance.EnableEditAndContinue)
+			if (e.Content is ITextEditorProvider) {
+				((ITextEditorProvider)e.Content).TextEditor.IsReadOnly = true;
+			}
+		}
+		
 		void debugger_ProcessExited(object sender, CollectionItemEventArgs<Process> e)
 		{
 			if (debugger.Processes.Count == 0) {
 				if (DebugStopped != null) {
 					DebugStopped(this, e);
+					SetActiveViewsReadonly(false);
 				}
 				SelectProcess(null);
 			} else {

src/AddIns/DisplayBindings/XmlEditor/Test/Utils/MockTextEditor.cs

@@ -95,6 +95,8 @@ namespace XmlEditor.Tests.Utils
 			}
 		}
 		
+		public bool IsReadOnly { get; set; }
+		
 		public FileName FileName {
 			get { return fileName; }
 			set { fileName = value; }

src/Main/Base/Project/Src/Editor/AvalonEdit/AvalonEditTextEditorAdapter.cs

@@ -26,6 +26,11 @@ namespace ICSharpCode.SharpDevelop.Editor.AvalonEdit
 		readonly TextEditor textEditor;
 		AvalonEditDocumentAdapter document;
 		
+		public bool IsReadOnly { 
+			get { return textEditor.IsReadOnly; }
+			set { textEditor.IsReadOnly = value; }
+		}
+		
 		public TextEditor TextEditor {
 			get { return textEditor; }
 		}

src/Main/Base/Project/Src/Editor/ITextEditor.cs

@@ -24,6 +24,8 @@ namespace ICSharpCode.SharpDevelop.Editor
 	/// </summary>
 	public interface ITextEditor : IServiceProvider
 	{
+		bool IsReadOnly { get; set; }
+		
 		/// <summary>
 		/// Gets the primary view if split-view is active.
 		/// If split-view is disabled, the current ITextEditor instance is returned.

src/Main/Base/Project/Src/Gui/IWorkbenchWindow.cs

@@ -76,5 +76,10 @@ namespace ICSharpCode.SharpDevelop.Gui
 		/// Is called when the title of this window has changed.
 		/// </summary>
 		event EventHandler TitleChanged;
+		
+		/// <summary>
+		/// Updates the content.
+		/// </summary>
+		void UpdateActiveViewContent();
 	}
 }

src/Main/Base/Project/Src/Gui/Workbench/Layouts/AvalonWorkbenchWindow.cs

@@ -137,7 +137,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		
 		IViewContent oldActiveViewContent;
 		
-		void UpdateActiveViewContent()
+		public void UpdateActiveViewContent()
 		{
 			UpdateTitleAndInfoTip();