fixes

2024-07-01 18:13:36 +01:00
parent bc33548842
commit 7788259055
13 changed files with 82 additions and 51 deletions
@@ -0,0 +1,68 @@
+using Avalonia;
+using Avalonia.Interactivity;
+using Avalonia.LogicalTree;
+using Toolkit.UI.Controls.Avalonia;
+
+namespace Toolkit.UI.Avalonia;
+
+public class NavigationViewExtension
+{
+    public static readonly AttachedProperty<bool> IsItemInvokedEnabledProperty =
+        AvaloniaProperty.RegisterAttached<NavigationViewItem, bool>("IsItemInvokedEnabled",
+            typeof(NavigationViewExtension), false);
+
+    public static readonly RoutedEvent<ItemInvokedEventArgs> ItemInvokedEvent =
+        RoutedEvent.Register<ItemInvokedEventArgs>("ItemInvoked",
+            RoutingStrategies.Bubble, typeof(NavigationViewExtension));
+
+    static NavigationViewExtension()
+    {
+        IsItemInvokedEnabledProperty.Changed.AddClassHandler<NavigationViewItem>(OnIsItemInvokedEnabledPropertyChanged);
+    }
+
+    private static void OnIsItemInvokedEnabledPropertyChanged(NavigationViewItem sender,
+        AvaloniaPropertyChangedEventArgs args)
+    {
+        bool TrySetupNavigationView()
+        {
+            if (sender.GetLogicalAncestors().OfType<NavigationView>().FirstOrDefault() is NavigationView navigationView)
+            {
+                void OnItemInvoked(object? _, FluentAvalonia.UI.Controls.NavigationViewItemInvokedEventArgs args)
+                {
+                    if (args.InvokedItemContainer == sender)
+                    {
+                        sender.RaiseEvent(new ItemInvokedEventArgs { RoutedEvent = ItemInvokedEvent });
+                    }
+                }
+
+                navigationView.ItemInvoked += OnItemInvoked;
+                return true;
+            }
+
+            return false;
+        }
+
+        if (!TrySetupNavigationView())
+        {
+            void OnAttachedToVisualTree(object? _, VisualTreeAttachmentEventArgs __)
+            {
+                sender.AttachedToVisualTree -= OnAttachedToVisualTree;
+                TrySetupNavigationView();
+            }
+
+            sender.AttachedToVisualTree += OnAttachedToVisualTree;
+        }
+    }
+
+    public static bool GetIsItemInvokedEnabled(NavigationViewItem element) =>
+        element.GetValue(IsItemInvokedEnabledProperty);
+
+    public static void SetIsItemInvokedEnabled(NavigationViewItem element, bool value) =>
+        element.SetValue(IsItemInvokedEnabledProperty, value);
+
+    public static void AddItemInvokedHandler(NavigationViewItem element, EventHandler<ItemInvokedEventArgs> handler) =>
+        element.AddHandler(ItemInvokedEvent, handler);
+
+    public static void RemoveItemInvokedHandler(NavigationViewItem element, EventHandler<ItemInvokedEventArgs> handler) =>
+        element.RemoveHandler(ItemInvokedEvent, handler);
+}