Enable quick find in preview editor

src/Eto.DevExtension.VisualStudio.Windows/Editor/EtoPreviewPane.cs

@@ -27,6 +27,7 @@
 using Microsoft.VisualStudio.Utilities;
 using Microsoft.VisualStudio.PlatformUI;
 using Microsoft.VisualStudio.Editor;
+using Microsoft.VisualStudio.Editor.Internal;
 using Microsoft.VisualStudio.Text;
 using Microsoft.VisualStudio.Text.Editor;
 using System.Windows.Media;
@@ -43,7 +44,11 @@
 		IVsTextLinesEvents,
 		IOleCommandTarget,
 		IVsCodeWindow, // support setting breakpoints
-		IVsCodeWindowEx
+		IVsCodeWindowEx,
+		IVsFindTarget, // find in the embedded editor
+		IVsFindTarget2,
+		IVsFindTarget3, // enables the quick find bar instead of only the find dialog
+		IVsFindTarget4
 	{
 		IVsTextLines textBuffer;
 		CodeEditorHost editor;
@@ -130,17 +135,17 @@
 			host.ProjectChanged += PreviewHost_ProjectChanged;
 			var designHost = new RemoteDesignPanel(async request =>
 			{
 				var result = await host.RenderAsync(request, await ProjectAssemblyPaths.GetAsync(fileName));
 				if (result?.Platform != null && result.Platform != drawnPlatform)
 				{
 					drawnPlatform = result.Platform;
 					LoadPlatforms();
 				}
 				if (result?.Themes != null && (result.Theme != drawnTheme || drawnThemes == null || !result.Themes.SequenceEqual(drawnThemes)))
 				{
 					drawnThemes = result.Themes;
 					drawnTheme = result.Theme;
 					LoadThemes();
 				}
 				return result;
 			});
@@ -151,8 +156,8 @@
 				WpfTextView?.VisualElement?.Focus();
 			};
 			preview = previewSplitter.Preview;
 			PreviewLayoutSettings.Load(previewSplitter);
 			previewSplitter.LayoutChanged += (sender, e) => PreviewLayoutSettings.Save(previewSplitter);
 
 			platformDropDown = new DropDown { ToolTip = "Platform to draw the preview with" };
 			platformDropDown.SelectedKeyChanged += PlatformDropDown_SelectedKeyChanged;
@@ -271,7 +276,7 @@
 
 			// the document may not be registered yet while the frame is being created
 			if (!LockDocument())
 				ThreadHelper.JoinableTaskFactory.StartOnIdle(() => LockDocument());
 
 			preview.Update();
 		}
@@ -541,10 +546,53 @@
 		public int GetViewClassID(out Guid pclsidView) => editor.codeWindow.GetViewClassID(out pclsidView);
 		public int SetBaseEditorCaption(string[] pszBaseEditorCaption) => editor.codeWindow.SetBaseEditorCaption(pszBaseEditorCaption);
 		public int GetEditorCaption(READONLYSTATUS dwReadOnly, out string pbstrEditorCaption) => editor.codeWindow.GetEditorCaption(dwReadOnly, out pbstrEditorCaption);
 		public int Close() => editor.Close();
 		public int GetLastActiveView(out IVsTextView ppView) => editor.codeWindow.GetLastActiveView(out ppView);
 
 		int IVsCodeWindowEx.Initialize(uint grfCodeWindowBehaviorFlags, VSUSERCONTEXTATTRIBUTEUSAGE usageAuxUserContext, string szNameAuxUserContext, string szValueAuxUserContext, uint InitViewFlags, INITVIEW[] pInitView) => ((IVsCodeWindowEx)editor.codeWindow).Initialize(grfCodeWindowBehaviorFlags, usageAuxUserContext, szNameAuxUserContext, szValueAuxUserContext, InitViewFlags, pInitView);
 		int IVsCodeWindowEx.IsReadOnly() => ((IVsCodeWindowEx)editor.codeWindow).IsReadOnly();
+
+		IVsFindTarget FindTarget => editor.viewAdapter as IVsFindTarget;
+
+		int IVsFindTarget.GetCapabilities(bool[] pfImage, uint[] pgrfOptions) => FindTarget?.GetCapabilities(pfImage, pgrfOptions) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.GetProperty(uint propid, out object pvar)
+		{
+			pvar = null;
+			return FindTarget?.GetProperty(propid, out pvar) ?? VSConstants.E_FAIL;
+		}
+		int IVsFindTarget.GetSearchImage(uint grfOptions, IVsTextSpanSet[] ppSpans, out IVsTextImage ppTextImage)
+		{
+			ppTextImage = null;
+			return FindTarget?.GetSearchImage(grfOptions, ppSpans, out ppTextImage) ?? VSConstants.E_FAIL;
+		}
+		int IVsFindTarget.Find(string pszSearch, uint grfOptions, int fResetStartPoint, IVsFindHelper pHelper, out uint pResult)
+		{
+			pResult = 0;
+			return FindTarget?.Find(pszSearch, grfOptions, fResetStartPoint, pHelper, out pResult) ?? VSConstants.E_FAIL;
+		}
+		int IVsFindTarget.Replace(string pszSearch, string pszReplace, uint grfOptions, int fResetStartPoint, IVsFindHelper pHelper, out int pfReplaced)
+		{
+			pfReplaced = 0;
+			return FindTarget?.Replace(pszSearch, pszReplace, grfOptions, fResetStartPoint, pHelper, out pfReplaced) ?? VSConstants.E_FAIL;
+		}
+		int IVsFindTarget.GetMatchRect(RECT[] prc) => FindTarget?.GetMatchRect(prc) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.NavigateTo(TextSpan[] pts) => FindTarget?.NavigateTo(pts) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.GetCurrentSpan(TextSpan[] pts) => FindTarget?.GetCurrentSpan(pts) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.SetFindState(object pUnk) => FindTarget?.SetFindState(pUnk) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.GetFindState(out object ppunk)
+		{
+			ppunk = null;
+			return FindTarget?.GetFindState(out ppunk) ?? VSConstants.E_FAIL;
+		}
+		int IVsFindTarget.NotifyFindTarget(uint notification) => FindTarget?.NotifyFindTarget(notification) ?? VSConstants.E_FAIL;
+		int IVsFindTarget.MarkSpan(TextSpan[] pts) => FindTarget?.MarkSpan(pts) ?? VSConstants.E_FAIL;
+
+		int IVsFindTarget2.NavigateTo2(IVsTextSpanSet pSpans, TextSelMode iSelMode) => (editor.viewAdapter as IVsFindTarget2)?.NavigateTo2(pSpans, iSelMode) ?? VSConstants.E_FAIL;
+
+		int IVsFindTarget3.IsNewUISupported => (editor.viewAdapter as IVsFindTarget3)?.IsNewUISupported ?? 0;
+		int IVsFindTarget3.NotifyShowingNewUI() => (editor.viewAdapter as IVsFindTarget3)?.NotifyShowingNewUI() ?? VSConstants.E_FAIL;
+
+		int IVsFindTarget4.IsAutonomous => (editor.viewAdapter as IVsFindTarget4)?.IsAutonomous ?? 0;
+		int IVsFindTarget4.IsIncrementalSearchSupported => (editor.viewAdapter as IVsFindTarget4)?.IsIncrementalSearchSupported ?? 0;
 	}
 }

src/Eto.DevExtension.VisualStudio.Windows/Editor/IVsFindTarget3.cs

@@ -0,0 +1,23 @@
+using System.Runtime.InteropServices;
+
+// Not in the public SDK; VS asks a document for these to decide between the quick find bar and the find dialog.
+// Namespace, names and TypeIdentifier must match VS's own declarations so casts to and from the editor's view succeed.
+namespace Microsoft.VisualStudio.Editor.Internal
+{
+	[ComImport, TypeIdentifier, Guid("A2F0D62B-D0DD-4C59-AAB8-79CD20785451"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+	public interface IVsFindTarget3
+	{
+		int IsNewUISupported { [PreserveSig] get; }
+
+		[PreserveSig]
+		int NotifyShowingNewUI();
+	}
+
+	[ComImport, TypeIdentifier, Guid("47AB8522-6BB1-4C85-BA88-E4B4513F8BE1"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+	public interface IVsFindTarget4
+	{
+		int IsAutonomous { [PreserveSig] get; }
+
+		int IsIncrementalSearchSupported { [PreserveSig] get; }
+	}
+}

src/Eto.DevExtension.VisualStudio.Windows/Eto.DevExtension.VisualStudio.Windows.csproj

@@ -85,6 +85,7 @@
     <Compile Include="Components.cs" />
     <Compile Include="Editor\CodeEditorHost.cs" />
     <Compile Include="Editor\EditorFactory.cs" />
+    <Compile Include="Editor\IVsFindTarget3.cs" />
     <Compile Include="Editor\PreviewHostClient.cs" />
     <Compile Include="Editor\PreviewLayoutSettings.cs" />
     <Compile Include="Editor\PreviewPlatforms.cs" />