更新整理

WPFluent.Gallery/Views/Pages/CollectionsPage.xaml.cs

@@ -0,0 +1,58 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using WPFluent.Controls;
+
+using WPFluent.Gallery.ViewModels.Pages.Collections;
+
+namespace WPFluent.Gallery.Views.Pages.Collections;
+
+public partial class CollectionsPage : INavigableView<CollectionsViewModel>
+{
+    private readonly INavigationService _navigationService;
+    
+
+    public CollectionsViewModel ViewModel { get; }
+
+    public CollectionsPage(CollectionsViewModel viewModel, INavigationService navigationService)
+    {
+        ViewModel = viewModel;
+        DataContext = this;
+        _navigationService = navigationService;
+
+        InitializeComponent();
+        Loaded += HandleLoaded;
+        Unloaded += HandleUnloaded;
+    }
+
+    private void HandleLoaded(object sender, RoutedEventArgs e)
+    {
+        INavigationView? navigationControl = _navigationService.GetNavigationControl();
+        if (
+            navigationControl?.BreadcrumbBar != null
+            && navigationControl.BreadcrumbBar.Visibility != Visibility.Collapsed
+        )
+        {
+            navigationControl.BreadcrumbBar.SetCurrentValue(VisibilityProperty, Visibility.Collapsed);
+        }
+    }
+
+    private void HandleUnloaded(object sender, RoutedEventArgs e)
+    {
+        INavigationView? navigationControl = _navigationService.GetNavigationControl();
+        if (
+            navigationControl?.BreadcrumbBar != null
+            && navigationControl.BreadcrumbBar.Visibility != Visibility.Visible
+        )
+        {
+            navigationControl.BreadcrumbBar.SetCurrentValue(VisibilityProperty, Visibility.Visible);
+        }
+
+        
+        
+        Loaded -= HandleLoaded;
+        Unloaded -= HandleUnloaded;
+    }
+}