Make file paths clickable with control in output

src/OneWare.Output/Views/OutputBaseView.cs

@@ -3,6 +3,7 @@
 using Avalonia.Media;
 using Avalonia.Threading;
 using AvaloniaEdit;
+using DynamicData;
 using DynamicData.Binding;
 using OneWare.Output.ViewModels;
 
@@ -77,7 +78,8 @@ public OutputBaseView()
     protected void UpdateLineColors(OutputBaseViewModel evm)
     {
         if (Output == null) throw new NullReferenceException(nameof(Output));
-        Output.TextArea.TextView.LineTransformers.Clear();
+        for(var i = 2; i < Output.TextArea.TextView.LineTransformers.Count; i++)
+            Output.TextArea.TextView.LineTransformers.RemoveAt(i);
         for (var i = 0; i < evm.LineColors.Count; i++)
             if (evm.LineColors[i] != null)
                 Output.TextArea.TextView.LineTransformers.Add(new LineColorizer(i + 1, evm.LineColors[i]));

src/OneWare.Output/Views/OutputView.axaml.cs

@@ -1,11 +1,164 @@
+using System.Text.RegularExpressions;
+using Avalonia;
+using Avalonia.Input;
+using Avalonia.Interactivity;
+using Avalonia.Media;
+using OneWare.Essentials.EditorExtensions;
+using OneWare.Essentials.Extensions;
+using OneWare.Essentials.Helpers;
+using OneWare.Essentials.Models;
+using OneWare.Essentials.Services;
+using OneWare.Essentials.ViewModels;
+using Prism.Ioc;
+
 namespace OneWare.Output.Views;
 
 public partial class OutputView : OutputBaseView
 {
+    private readonly TextModificationService _modificationService;
+
+    private PointerEventArgs? _lastMovedArgs;
+
+    private SearchResult? _searchResult;
+
     public OutputView()
     {
         InitializeComponent();
-
+
+        _modificationService = new TextModificationService(Output.TextArea.TextView);
+        Output.TextArea.TextView.LineTransformers.Add(_modificationService);
         Output.Options.AllowScrollBelowDocument = false;
+
+        Output.AddHandler(PointerPressedEvent, PointerPressedAfterCaretUpdate, RoutingStrategies.Bubble, true);
+
+    }
+
+    protected override void OnPointerMoved(PointerEventArgs e)
+    {
+        base.OnPointerMoved(e);
+
+        _lastMovedArgs = e;
+
+        if(Output.Document.Text.Length == 0) Output.Document.Text = "VhdlSim_tb.vhd:43:5: signal interface \"led\" has no association in entity";
+
+        if (e.KeyModifiers == PlatformHelper.ControlKey)
+        {
+            SearchPath();
+        }
+        else
+        {
+           ResetControlModification();
+        }
+    }
+
+    protected override void OnKeyDown(KeyEventArgs e)
+    {
+        if(e.KeyModifiers == PlatformHelper.ControlKey)
+        {
+            SearchPath();
+        }
+        base.OnKeyDown(e);
+    }
+
+    protected override void OnKeyUp(KeyEventArgs e)
+    {
+        if(e.KeyModifiers == PlatformHelper.ControlKey)
+        {
+            ResetControlModification();
+        }
+        base.OnKeyUp(e);
+    }
+
+    private void PointerPressedAfterCaretUpdate(object? sender, PointerPressedEventArgs e)
+    {
+        if(!e.GetCurrentPoint(null).Properties.IsLeftButtonPressed) return;
+
+        _ = OpenFileAsync();
+    }
+
+    private async Task OpenFileAsync()
+    {
+        if(_searchResult == null) return;
+
+        var result = ContainerLocator.Container.Resolve<IProjectExplorerService>()
+            .ActiveProject?.SearchRelativePath(_searchResult.Path);
+
+        if (result is IFile file)
+        {
+            var doc = await ContainerLocator.Container.Resolve<IDockService>().OpenFileAsync(file);
+            if (doc is not IEditor evb) return;
+
+            var offset = evb.CurrentDocument.GetOffset(_searchResult.Line, _searchResult.Column);
+
+            evb.Select(offset, 0);
+        }
+    }
+
+    protected override void OnLostFocus(RoutedEventArgs e)
+    {
+        ResetControlModification();
+        base.OnLostFocus(e);
+    }
+
+    private void SearchPath()
+    {
+        if(_lastMovedArgs == null) return;
+
+        var pointerPosition = Output.GetOffsetFromPointerPosition(_lastMovedArgs);
+
+        if(pointerPosition < 0) return;
+
+        var line = Output.Document.GetLineByOffset(pointerPosition);
+        var lineText = Output.Document.GetText(line);
+
+        var regex = ExtractFilePathRegex();
+
+        var matches = regex.Matches(lineText);
+
+        var match = matches.FirstOrDefault(x => x.Index <= pointerPosition && x.Index + x.Length >= pointerPosition);
+
+        if (match is not { Success: true }) return;
+
+        var path = match.Groups[1].Value;
+        var fileLine = int.Parse(match.Groups[2].Value);
+        var fileColumn = int.Parse(match.Groups[3].Value);
+
+        _searchResult = new SearchResult(path, fileLine, fileColumn);
+
+        var result = ContainerLocator.Container.Resolve<IProjectExplorerService>()
+            .ActiveProject?.SearchRelativePath(_searchResult.Path);
+
+        if(result == null) return;
+
+        Output.TextArea.TextView.Cursor = Cursor.Parse("Hand");
+
+        _modificationService.SetModification("Control_Underline", new TextModificationSegment(
+                line.Offset + match.Index,
+                line.Offset + match.Index + match.Length)
+            { Decorations = TextDecorationCollection.Parse("Underline") });
+    }
+
+    private void ResetControlModification()
+    {
+        Output.TextArea.TextView.Cursor = Cursor.Parse("IBeam");
+        _modificationService.ClearModification("Control_Underline");
+        _searchResult = null;
+    }
+
+    [GeneratedRegex(@"^(.*?):(\d+):(\d+)")]
+    private static partial Regex ExtractFilePathRegex();
+
+    private class SearchResult
+    {
+        public string Path { get; }
+        public int Line { get; }
+        public int Column { get; }
+
+        public SearchResult(string path, int line, int column)
+        {
+            Path = path;
+            Line = line;
+            Column = column;
+        }
     }
 }