Custom TUI Library WIP

src/Library/TerminalUI/DataContextMapper.cs

@@ -0,0 +1,27 @@
+using System.ComponentModel;
+using TerminalUI.Controls;
+
+namespace TerminalUI;
+
+public class DataContextMapper<T> : IDisposable
+{
+    private readonly IView<T> _source;
+    private readonly Action<T?> _setter;
+
+    public DataContextMapper(IView<T> source, Action<T?> setter)
+    {
+        ArgumentNullException.ThrowIfNull(source);
+
+        _source = source;
+        _setter = setter;
+        source.PropertyChanged += SourceOnPropertyChanged;
+    }
+
+    private void SourceOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName != nameof(IView<object>.DataContext)) return;
+        _setter(_source.DataContext);
+    }
+
+    public void Dispose() => _source.PropertyChanged -= SourceOnPropertyChanged;
+}