DragAndDrop core

Lattice.UI.Docking.WinUI/Converters/DockTemplateSelector.cs

@@ -0,0 +1,27 @@
+using Lattice.Core.Docking.Models;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+
+namespace Lattice.UI.Docking.WinUI.Converters;
+
+/// <summary>
+/// Выбирает визуальный шаблон для узла дерева макета.
+/// </summary>
+public class DockTemplateSelector : DataTemplateSelector
+{
+    /// <summary> Шаблон для узлов-разделителей (DockGroup). </summary>
+    public DataTemplate? GroupTemplate { get; set; }
+
+    /// <summary> Шаблон для контейнеров вкладок (DockLeaf). </summary>
+    public DataTemplate? LeafTemplate { get; set; }
+
+    protected override DataTemplate? SelectTemplateCore(object item, DependencyObject container)
+    {
+        return item switch
+        {
+            DockGroup => GroupTemplate,
+            DockLeaf => LeafTemplate,
+            _ => base.SelectTemplateCore(item, container)
+        };
+    }
+}