Prevent scrolling beyond the last line of text and scroll to the last line when a prompt is displayed.

src/AddIns/BackendBindings/Ruby/RubyBinding.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
-# SharpDevelop 4.0.0.6808
+# SharpDevelop 4.1.0.7318-alpha
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RubyBinding", "RubyBinding\Project\RubyBinding.csproj", "{C896FFFF-5B6C-4B0E-B6DF-049865F501B4}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RubyBinding.Tests", "RubyBinding\Test\RubyBinding.Tests.csproj", "{01DF0475-0CB2-4E81-971B-BADC60CDE3A5}"
@@ -28,6 +28,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.Scripting", "..
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.Scripting.Tests", "..\Scripting\Test\ICSharpCode.Scripting.Tests.csproj", "{85C09AD8-183B-403A-869A-7226646218A9}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.Core.WinForms", "..\..\..\Main\ICSharpCode.Core.WinForms\ICSharpCode.Core.WinForms.csproj", "{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -98,5 +100,13 @@ Global
 		{85C09AD8-183B-403A-869A-7226646218A9}.Release|Any CPU.ActiveCfg = Release|x86
 		{85C09AD8-183B-403A-869A-7226646218A9}.Release|x86.Build.0 = Release|x86
 		{85C09AD8-183B-403A-869A-7226646218A9}.Release|x86.ActiveCfg = Release|x86
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Debug|x86.Build.0 = Debug|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Release|Any CPU.Build.0 = Release|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Release|x86.Build.0 = Release|Any CPU
+		{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}.Release|x86.ActiveCfg = Release|Any CPU
 	EndGlobalSection
 EndGlobal

src/AddIns/BackendBindings/Scripting/Project/ICSharpCode.Scripting.csproj

@@ -106,6 +106,7 @@
     <Compile Include="Src\SendLineToScriptingConsoleCommand.cs" />
     <Compile Include="Src\SendSelectedTextToScriptingConsoleCommand.cs" />
     <Compile Include="Src\SendToScriptingConsoleCommand.cs" />
+    <Compile Include="Src\TextEditorFactory.cs" />
     <Compile Include="Src\TextSentToScriptingConsole.cs" />
     <Compile Include="Src\ThreadSafeScriptingConsole.cs" />
     <Compile Include="Src\ThreadSafeScriptingConsoleEvents.cs" />
@@ -126,6 +127,11 @@
       <Name>ICSharpCode.Core</Name>
       <Private>False</Private>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\..\Main\ICSharpCode.Core.WinForms\ICSharpCode.Core.WinForms.csproj">
+      <Project>{857CA1A3-FC88-4BE0-AB6A-D1EE772AB288}</Project>
+      <Name>ICSharpCode.Core.WinForms</Name>
+      <Private>False</Private>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\..\Main\ICSharpCode.SharpDevelop.Dom\Project\ICSharpCode.SharpDevelop.Dom.csproj">
       <Project>{924EE450-603D-49C1-A8E5-4AFAA31CE6F3}</Project>
       <Name>ICSharpCode.SharpDevelop.Dom</Name>

src/AddIns/BackendBindings/Scripting/Project/Src/IScriptingConsole.cs

@@ -8,6 +8,8 @@ namespace ICSharpCode.Scripting
 	public interface IScriptingConsole : IDisposable
 	{
 		event EventHandler LineReceived;
+				
+		bool ScrollToEndWhenPromptWritten { get; set; }
 		
 		void SendLine(string line);
 		void SendText(string text);

src/AddIns/BackendBindings/Scripting/Project/Src/IScriptingConsoleTextEditor.cs

@@ -77,5 +77,7 @@ namespace ICSharpCode.Scripting
 		/// Makes the current text content read only. Text can be entered at the end.
 		/// </summary>
 		void MakeCurrentContentReadOnly();
+		
+		void ScrollToEnd();
 	}
 }

src/AddIns/BackendBindings/Scripting/Project/Src/ScriptingConsole.cs

@@ -34,6 +34,7 @@ namespace ICSharpCode.Scripting
 		{
 			this.textEditor = textEditor;
 			this.unreadLines = unreadLines;
+			this.ScrollToEndWhenPromptWritten = true;
 			textEditor.PreviewKeyDown += ProcessPreviewKeyDown;
 		}
 		
@@ -77,6 +78,10 @@ namespace ICSharpCode.Scripting
 				WriteFirstLineOfSentText();
 				
 				textEditor.MakeCurrentContentReadOnly();
+				
+				if (ScrollToEndWhenPromptWritten) {
+					ScrollToEnd();
+				}
 			}
 		}
 		
@@ -340,5 +345,12 @@ namespace ICSharpCode.Scripting
 		{
 			return unreadLines.RemoveFirstLine();
 		}
+		
+		public bool ScrollToEndWhenPromptWritten { get; set; }
+		
+		void ScrollToEnd()
+		{
+			textEditor.ScrollToEnd();
+		}
 	}
 }

src/AddIns/BackendBindings/Scripting/Project/Src/ScriptingConsolePad.cs

@@ -3,9 +3,7 @@
 
 using System;
 using ICSharpCode.AvalonEdit.Highlighting;
-using ICSharpCode.SharpDevelop.Editor;
 using ICSharpCode.SharpDevelop.Gui;
-using AvalonEdit = ICSharpCode.AvalonEdit;
 
 namespace ICSharpCode.Scripting
 {
@@ -17,19 +15,12 @@ namespace ICSharpCode.Scripting
 		
 		public ScriptingConsolePad()
 		{
-			textEditor = CreateTextEditor();
+			textEditor = TextEditorFactory.CreateTextEditor();
 			textEditor.SyntaxHighlighting = GetSyntaxHighlighting();
 			CreateConsoleHost();
 			host.Run();	
 		}
 		
-		AvalonEdit.TextEditor CreateTextEditor()
-		{
-			object textEditor;
-			EditorControlService.CreateEditor(out textEditor);
-			return (AvalonEdit.TextEditor)textEditor;
-		}
-		
 		IHighlightingDefinition GetSyntaxHighlighting()
 		{
 			return HighlightingManager.Instance.GetDefinition(SyntaxHighlightingName);

src/AddIns/BackendBindings/Scripting/Project/Src/ScriptingConsoleTextEditor.cs

@@ -147,5 +147,10 @@ namespace ICSharpCode.Scripting
 				completionWindow = null;
 			}
 		}
+		
+		public void ScrollToEnd()
+		{
+			textEditor.ScrollToEnd();
+		}
 	}
 }

src/AddIns/BackendBindings/Scripting/Project/Src/TextEditorFactory.cs

@@ -0,0 +1,28 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Windows.Media;
+using ICSharpCode.AvalonEdit;
+using ICSharpCode.Core.WinForms;
+using ICSharpCode.SharpDevelop.Editor;
+
+namespace ICSharpCode.Scripting
+{
+	public static class TextEditorFactory
+	{
+		public static TextEditor CreateTextEditor()
+		{
+			object control;
+			EditorControlService.CreateEditor(out control);
+			var textEditor = (TextEditor)control;
+			
+			textEditor.Options = new TextEditorOptions();
+			textEditor.Options.AllowScrollBelowDocument = false;
+			textEditor.FontFamily = new FontFamily(WinFormsResourceService.DefaultMonospacedFont.Name);
+			textEditor.FontSize = 13.0;
+			
+			return textEditor;
+		}
+	}
+}

src/AddIns/BackendBindings/Scripting/Project/Src/ThreadSafeScriptingConsole.cs

@@ -35,6 +35,12 @@ namespace ICSharpCode.Scripting
 			consoleEvents.SetLineReceivedEvent();
 		}
 		
+		
+		public bool ScrollToEndWhenPromptWritten {
+			get { return nonThreadSafeScriptingConsole.ScrollToEndWhenPromptWritten; }
+			set { nonThreadSafeScriptingConsole.ScrollToEndWhenPromptWritten = value; }
+		}
+		
 		public void WriteLine()
 		{
 			if (dispatcher.CheckAccess()) {

src/AddIns/BackendBindings/Scripting/Test/Console/ScriptingConsoleWriteTests.cs

@@ -23,14 +23,14 @@ namespace ICSharpCode.Scripting.Tests.Console
 		}
 		
 		[Test]
-		public void WriteLine()
+		public void WriteLine_WriteLine_NewLineWritten()
 		{
 			TestableScriptingConsole.WriteLine();
 			Assert.AreEqual(Environment.NewLine, FakeConsoleTextEditor.Text);
 		}
 		
 		[Test]
-		public void WriteLineWithText()
+		public void WriteLine_WriteLineWithText_TextPlusNewLineWritten()
 		{
 			TestableScriptingConsole.WriteLine("test", ScriptingStyle.Out);
 			string expectedText = "test" + Environment.NewLine;
@@ -38,7 +38,7 @@ namespace ICSharpCode.Scripting.Tests.Console
 		}	
 		
 		[Test]
-		public void TwoWrites()
+		public void Write_TwoWrites_BothWrittenToTextEditor()
 		{
 			TestableScriptingConsole.Write("a", ScriptingStyle.Out);
 			TestableScriptingConsole.Write("b", ScriptingStyle.Out);
@@ -46,9 +46,42 @@ namespace ICSharpCode.Scripting.Tests.Console
 		}
 		
 		[Test]
-		public void DoesNotHasLinesWaitingToBeRead()
+		public void Constructor_NewInstance_DoesNotHaveLinesWaitingToBeRead()
 		{
 			Assert.IsFalse(TestableScriptingConsole.IsLineAvailable);
 		}
+		
+		[Test]
+		public void Write_WritePromptWhenScrollToPromptIsTrue_TextEditorIsScrolled()
+		{
+			TestableScriptingConsole.ScrollToEndWhenPromptWritten = true;
+			TestableScriptingConsole.Write("a", ScriptingStyle.Prompt);
+			
+			Assert.IsTrue(FakeConsoleTextEditor.IsScrollToEndCalled);
+		}
+		
+		[Test]
+		public void Write_WritePromptWhenScrollToPromptIsFalse_TextEditorIsNotScrolled()
+		{
+			TestableScriptingConsole.ScrollToEndWhenPromptWritten = false;
+			TestableScriptingConsole.Write("a", ScriptingStyle.Prompt);
+			
+			Assert.IsFalse(FakeConsoleTextEditor.IsScrollToEndCalled);
+		}
+		
+		[Test]
+		public void Write_WriteErrorWhenScrollToPromptIsTrue_TextEditorIsNotScrolled()
+		{
+			TestableScriptingConsole.ScrollToEndWhenPromptWritten = true;
+			TestableScriptingConsole.Write("a", ScriptingStyle.Error);
+			
+			Assert.IsFalse(FakeConsoleTextEditor.IsScrollToEndCalled);
+		}
+		
+		[Test]
+		public void ScrollToEndWhenPromptWritten_NewInstance_IsTrue()
+		{
+			Assert.IsTrue(TestableScriptingConsole.ScrollToEndWhenPromptWritten);
+		}
 	}
 }

src/AddIns/BackendBindings/Scripting/Test/Console/ThreadSafeScriptingConsoleTests.cs

@@ -353,5 +353,23 @@ namespace ICSharpCode.Scripting.Tests.Console
 			string expectedLine = "abc";
 			Assert.AreEqual(expectedLine, line);
 		}
+		
+		[Test]
+		public void ScrollToEndWhenPromptWritten_NonThreadSafeConsoleScrollToEndWhenPromptWrittenIsTrue_ReturnsTrue()
+		{
+			CreateThreadSafeScriptingConsole();
+			nonThreadSafeScriptingConsole.ScrollToEndWhenPromptWritten = true;
+			
+			Assert.IsTrue(threadSafeConsole.ScrollToEndWhenPromptWritten);
+		}
+		
+		[Test]
+		public void ScrollToEndWhenPromptWritten_NonThreadSafeConsoleScrollToEndWhenPromptWrittenIsFalse_ReturnsFalse()
+		{
+			CreateThreadSafeScriptingConsole();
+			nonThreadSafeScriptingConsole.ScrollToEndWhenPromptWritten = false;
+			
+			Assert.IsFalse(threadSafeConsole.ScrollToEndWhenPromptWritten);
+		}
 	}
 }

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

@@ -195,5 +195,13 @@ namespace ICSharpCode.Scripting.Tests.Utils
 				LineBuilder.Remove(SelectionStart, SelectionLength);
 			}
 		}
+		
+		public bool IsScrollToEndCalled;
+		public bool ScrollToEndWhenPromptWritten { get; set; }
+		
+		public void ScrollToEnd()
+		{
+			IsScrollToEndCalled = true;
+		}
 	}
 }

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

@@ -23,6 +23,7 @@ namespace ICSharpCode.Scripting.Tests.Utils
 		public string TextToReturnFromReadFirstUnreadLine;
 		public bool IsReadLineCalled;
 		public bool IsDisposeCalled;
+		public bool ScrollToEndWhenPromptWritten { get; set; }
 		
 		public void SendLine(string text)
 		{
@@ -75,5 +76,10 @@ namespace ICSharpCode.Scripting.Tests.Utils
 		{
 			IsDisposeCalled = true;
 		}
+		
+		public void ScrollToEnd()
+		{
+			
+		}
 	}
 }

src/AddIns/Misc/PackageManagement/Project/Src/Scripting/PackageManagementConsole.cs

@@ -13,16 +13,10 @@ namespace ICSharpCode.PackageManagement.Scripting
 		TextEditor textEditor;
 		
 		public PackageManagementConsole()
-			: this(CreateTextEditor())
+			: this(TextEditorFactory.CreateTextEditor())
 		{
 		}
-		
-		static TextEditor CreateTextEditor()
-		{
-			object textEditor;
-			EditorControlService.CreateEditor(out textEditor);
-			return (TextEditor)textEditor;
-		}
+
 		
 		public PackageManagementConsole(TextEditor textEditor)
 			: this(new ScriptingConsoleTextEditor(textEditor), new ControlDispatcher(textEditor))