Fix SD-1737 - Keyboard shortcuts do not work in WinForms Designer

src/AddIns/DisplayBindings/FormsDesigner/Project/FormsDesigner.csproj

@@ -47,13 +47,25 @@
     <Reference Include="PresentationCore">
       <RequiredTargetFramework>3.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="PresentationFramework">
+      <RequiredTargetFramework>3.0</RequiredTargetFramework>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Design" />
     <Reference Include="System.Drawing" />
     <Reference Include="System.Drawing.Design" />
     <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xaml">
+      <RequiredTargetFramework>4.0</RequiredTargetFramework>
+    </Reference>
     <Reference Include="System.XML" />
+    <Reference Include="WindowsBase">
+      <RequiredTargetFramework>3.0</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="WindowsFormsIntegration">
+      <RequiredTargetFramework>3.0</RequiredTargetFramework>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <EmbeddedResource Include="Resources\AddSidebarComponentsDialog.xfrm" />

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/DesignerViewContent.cs

@@ -482,8 +482,28 @@ namespace ICSharpCode.FormsDesigner
 		}
 		
 		internal new Control UserContent {
-			get { return base.UserContent as Control; }
-			set { base.UserContent = value; }
+			get {
+				SDWindowsFormsHost host = base.UserContent as SDWindowsFormsHost;
+				return host != null ? host.Child : null;
+			}
+			set {
+				SDWindowsFormsHost host = base.UserContent as SDWindowsFormsHost;
+				if (value == null) {
+					base.UserContent = null;
+					if (host != null)
+						host.Dispose();
+					return;
+				}
+				if (host != null && host.Child == value)
+					return;
+				if (host == null) {
+					host = new SDWindowsFormsHost(true);
+					host.ServiceObject = this;
+					host.DisposeChild = false;
+				}
+				host.Child = value;
+				base.UserContent = host;
+			}
 		}
 		
 		void DesignerLoading(object sender, EventArgs e)

src/Main/Base/Project/Src/Util/SDWindowsFormsHost.cs

@@ -16,28 +16,37 @@ namespace ICSharpCode.SharpDevelop.Gui
 	/// </summary>
 	public class SDWindowsFormsHost : WindowsFormsHost
 	{
-		public SDWindowsFormsHost()
+		/// <summary>
+		/// Creates a new SDWindowsFormsHost instance.
+		/// </summary>
+		/// <param name="processShortcutsInWPF">
+		/// Determines whether the shortcuts for the default actions (Cut,Copy,Paste,Undo, etc.)
+		/// are processed by the WPF command system.
+		/// The default value is false. Pass true only if WinForms does not handle those shortcuts by itself.
+		/// See SD-1671 and SD-1737.
+		/// </param>
+		public SDWindowsFormsHost(bool processShortcutsInWPF = false)
 		{
 			this.DisposeChild = true;
-			CreateBindings();
+			CreateBindings(processShortcutsInWPF);
 		}
 		
 		#region Binding
-		void CreateBindings()
+		void CreateBindings(bool processShortcutsInWPF)
 		{
-			AddBinding(ApplicationCommands.Copy, (IClipboardHandler c) => c.Copy(), c => c.EnableCopy);
-			AddBinding(ApplicationCommands.Cut, (IClipboardHandler c) => c.Cut(), c => c.EnableCut);
-			AddBinding(ApplicationCommands.Paste, (IClipboardHandler c) => c.Paste(), c => c.EnablePaste);
-			AddBinding(ApplicationCommands.Delete, (IClipboardHandler c) => c.Delete(), c => c.EnableDelete);
-			AddBinding(ApplicationCommands.SelectAll, (IClipboardHandler c) => c.SelectAll(), c => c.EnableSelectAll);
-			AddBinding(ApplicationCommands.Help, (IContextHelpProvider h) => h.ShowHelp(), h => true);
-			AddBinding(ApplicationCommands.Undo, (IUndoHandler u) => u.Undo(), u => u.EnableUndo);
-			AddBinding(ApplicationCommands.Redo, (IUndoHandler u) => u.Redo(), u => u.EnableRedo);
-			AddBinding(ApplicationCommands.Print, (IPrintable p) => WindowsFormsPrinting.Print(p), p => true);
-			AddBinding(ApplicationCommands.PrintPreview, (IPrintable p) => WindowsFormsPrinting.PrintPreview(p), p => true);
-		}
-		
-		void AddBinding<T>(ICommand command, Action<T> execute, Predicate<T> canExecute) where T : class
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Copy, (IClipboardHandler c) => c.Copy(), c => c.EnableCopy);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Cut, (IClipboardHandler c) => c.Cut(), c => c.EnableCut);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Paste, (IClipboardHandler c) => c.Paste(), c => c.EnablePaste);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Delete, (IClipboardHandler c) => c.Delete(), c => c.EnableDelete);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.SelectAll, (IClipboardHandler c) => c.SelectAll(), c => c.EnableSelectAll);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Help, (IContextHelpProvider h) => h.ShowHelp(), h => true);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Undo, (IUndoHandler u) => u.Undo(), u => u.EnableUndo);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Redo, (IUndoHandler u) => u.Redo(), u => u.EnableRedo);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.Print, (IPrintable p) => WindowsFormsPrinting.Print(p), p => true);
+			AddBinding(processShortcutsInWPF, ApplicationCommands.PrintPreview, (IPrintable p) => WindowsFormsPrinting.PrintPreview(p), p => true);
+		}
+		
+		void AddBinding<T>(bool processShortcutsInWPF, ICommand command, Action<T> execute, Predicate<T> canExecute) where T : class
 		{
 			ExecutedRoutedEventHandler onExecuted = (sender, e) => {
 				if (e.Command == command) {
@@ -58,13 +67,16 @@ namespace ICSharpCode.SharpDevelop.Gui
 					}
 				}
 			};
-			//this.CommandBindings.Add(new CommandBinding(command, onExecuted, onCanExecute));
+			if (processShortcutsInWPF) {
+				this.CommandBindings.Add(new CommandBinding(command, onExecuted, onCanExecute));
+			} else {
 				// Don't use this.CommandBindings because CommandBindings with built-in shortcuts would handle the key press
 				// before WinForms gets to see it. Using the events ensures that the command gets executed only when the user
 				// clicks on the menu/toolbar item. (this fixes SD2-1671)
 				CommandManager.AddCanExecuteHandler(this, onCanExecute);
 				CommandManager.AddExecutedHandler(this, onExecuted);
 			}
+		}
 		#endregion
 		
 		public override string ToString()