Fix: Fixed xamlRoot in GetFocusedElement (#13962)

src/Files.App/UserControls/AddressToolbar.xaml.cs

@@ -95,7 +95,7 @@ private void VisiblePath_KeyDown(object _, KeyRoutedEventArgs e)
 		}
 		private void VisiblePath_LostFocus(object _, RoutedEventArgs e)
 		{
-			var element = FocusManager.GetFocusedElement(XamlRoot);
+			var element = FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot);
 			if (element is FlyoutBase or AppBarButton or Popup)
 				return;
 

src/Files.App/Views/LayoutModes/DetailsLayoutBrowser.xaml.cs

@@ -332,7 +332,7 @@ protected override async void FileList_PreviewKeyDown(object sender, KeyRoutedEv
 
 			var ctrlPressed = InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Control).HasFlag(CoreVirtualKeyStates.Down);
 			var shiftPressed = InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Shift).HasFlag(CoreVirtualKeyStates.Down);
-			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(XamlRoot);
+			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot);
 			var isHeaderFocused = DependencyObjectHelpers.FindParent<DataGridHeader>(focusedElement) is not null;
 			var isFooterFocused = focusedElement is HyperlinkButton;
 

src/Files.App/Views/LayoutModes/GridViewBrowser.xaml.cs

@@ -271,7 +271,7 @@ protected override async void FileList_PreviewKeyDown(object sender, KeyRoutedEv
 
 			var ctrlPressed = InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Control).HasFlag(CoreVirtualKeyStates.Down);
 			var shiftPressed = InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Shift).HasFlag(CoreVirtualKeyStates.Down);
-			var focusedElement = FocusManager.GetFocusedElement(XamlRoot) as FrameworkElement;
+			var focusedElement = FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot) as FrameworkElement;
 			var isFooterFocused = focusedElement is HyperlinkButton;
 
 			if (ctrlPressed && e.Key is VirtualKey.A)

src/Files.App/Views/LayoutModes/StandardLayoutMode.cs

@@ -2,7 +2,6 @@
 // Licensed under the MIT License. See the LICENSE.
 
 using CommunityToolkit.WinUI.UI;
-using Files.App.Data.Commands;
 using Files.App.ViewModels.LayoutModes;
 using Microsoft.UI.Input;
 using Microsoft.UI.Xaml;
@@ -85,6 +84,9 @@ protected virtual async void ItemManipulationModel_RefreshItemThumbnail(object?
 
 		protected virtual async Task ReloadSelectedItemIconAsync()
 		{
+			if (ParentShellPageInstance?.SlimContentPage?.SelectedItem is null)
+				return;
+
 			ParentShellPageInstance.FilesystemViewModel.CancelExtendedPropertiesLoading();
 			ParentShellPageInstance.SlimContentPage.SelectedItem.ItemPropertiesInitialized = false;
 
@@ -93,6 +95,9 @@ protected virtual async Task ReloadSelectedItemIconAsync()
 
 		protected virtual async Task ReloadSelectedItemsIconAsync()
 		{
+			if (ParentShellPageInstance?.SlimContentPage?.SelectedItems is null)
+				return;
+
 			ParentShellPageInstance.FilesystemViewModel.CancelExtendedPropertiesLoading();
 
 			foreach (var selectedItem in ParentShellPageInstance.SlimContentPage.SelectedItems)
@@ -104,7 +109,7 @@ protected virtual async Task ReloadSelectedItemsIconAsync()
 
 		protected virtual void ItemManipulationModel_FocusFileListInvoked(object? sender, EventArgs e)
 		{
-			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(XamlRoot);
+			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot);
 			var isFileListFocused = DependencyObjectHelpers.FindParent<ListViewBase>(focusedElement) == ItemsControl;
 			if (!isFileListFocused)
 				ListViewBase.Focus(FocusState.Programmatic);
@@ -224,7 +229,7 @@ protected virtual async Task CommitRenameAsync(TextBox textBox)
 		protected virtual async void RenameTextBox_LostFocus(object sender, RoutedEventArgs e)
 		{
 			// This check allows the user to use the text box context menu without ending the rename
-			if (!(FocusManager.GetFocusedElement(XamlRoot) is AppBarButton or Popup))
+			if (!(FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot) is AppBarButton or Popup))
 			{
 				TextBox textBox = (TextBox)e.OriginalSource;
 				await CommitRenameAsync(textBox);
@@ -315,7 +320,7 @@ protected override void Page_CharacterReceived(UIElement sender, CharacterReceiv
 				return;
 
 			// Don't block the various uses of enter key (key 13)
-			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(XamlRoot);
+			var focusedElement = (FrameworkElement)FocusManager.GetFocusedElement(MainWindow.Instance.Content.XamlRoot);
 			var isHeaderFocused = DependencyObjectHelpers.FindParent<DataGridHeader>(focusedElement) is not null;
 			if (InputKeyboardSource.GetKeyStateForCurrentThread(VirtualKey.Enter) == CoreVirtualKeyStates.Down ||
 				(focusedElement is Button && !isHeaderFocused) || // Allow jumpstring when header is focused