fix: selected text is sometimes not visible

DearVa · DearVa · commit f8dfbb805d85 · 2025-09-04T18:18:29.000+08:00
#4
diff --git a/src/LiveMarkdown.Avalonia/MarkdownTextBlock.cs b/src/LiveMarkdown.Avalonia/MarkdownTextBlock.cs
@@ -243,6 +243,13 @@ private IEnumerable<Rect> TextLayoutHitTestTextRange(int start, int length)
         }
     }
 
+    protected override void OnMeasureInvalidated()
+    {
+        var textRuns = _textRuns;
+        base.OnMeasureInvalidated();
+        _textRuns = textRuns;
+    }
+
     public new void SelectAll()
     {
         SetCurrentValue(SelectionStartProperty, 0);

Original file line number	Diff line number	Diff line change
`@@ -243,6 +243,13 @@ private IEnumerable<Rect> TextLayoutHitTestTextRange(int start, int length)`
`243`	`243`	`}`
`244`	`244`	`}`
`245`	`245`
	`246`	`+ protected override void OnMeasureInvalidated()`
	`247`	`+ {`
	`248`	`+ var textRuns = _textRuns;`
	`249`	`+ base.OnMeasureInvalidated();`
	`250`	`+ _textRuns = textRuns;`
	`251`	`+ }`
	`252`	`+`
`246`	`253`	`public new void SelectAll()`
`247`	`254`	`{`
`248`	`255`	`SetCurrentValue(SelectionStartProperty, 0);`