get token scopes method added

AvaloniaUI · Mar 29, 2024 · 62b8790 · 62b8790
1 parent adbe72b
commit 62b8790
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Showing 2 changed files with 22 additions and 5 deletions.
diff --git a/src/AvaloniaEdit.Demo/MainWindow.xaml.cs b/src/AvaloniaEdit.Demo/MainWindow.xaml.cs
@@ -109,9 +109,14 @@ public MainWindow()
 
         private void Caret_PositionChanged(object sender, EventArgs e)
         {
-            _statusTextBlock.Text = string.Format("Line {0} Column {1}",
+            var scopes = _textMateInstallation.EditorModel.GetTokenScopes(
+                _textEditor.TextArea.Caret.Line - 1,
+                _textEditor.TextArea.Caret.Column - 1);
+
+            _statusTextBlock.Text = string.Format("Line {0} Column {1}. Scopes: {2}",
                 _textEditor.TextArea.Caret.Line,
-                _textEditor.TextArea.Caret.Column);
+                _textEditor.TextArea.Caret.Column,
+                scopes.Count > 0 ? string.Join(", ", scopes) : "None");
         }
 
         protected override void OnClosed(EventArgs e)

diff --git a/src/AvaloniaEdit.TextMate/TextEditorModel.cs b/src/AvaloniaEdit.TextMate/TextEditorModel.cs
@@ -1,10 +1,9 @@
 using System;
-
+using System.Collections.Generic;
+using System.Linq;
 using Avalonia.Threading;
-
 using AvaloniaEdit.Document;
 using AvaloniaEdit.Rendering;
-
 using TextMateSharp.Model;
 
 namespace AvaloniaEdit.TextMate
@@ -73,6 +72,19 @@ public override int GetLineLength(int lineIndex)
             return _documentSnapshot.GetLineLength(lineIndex);
         }
 
+        public IReadOnlyCollection<string> GetTokenScopes(int lineIndex, int columnIndex)
+        {
+            var line = Get(lineIndex);
+            if (line == null) return Array.Empty<string>();
+
+            var element = line
+                .Tokens
+                .OrderBy(x => x.StartIndex)
+                .LastOrDefault(x => x.StartIndex <= columnIndex);
+
+            return element?.Scopes ?? new List<string>();
+        }
+
         private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
         {
             try