Improve file operations, layout memory, and drive status.

Add a sequential file-operations queue with pause, reorder, and optional auto-clear; persist window size and tree width; show free space; and clear leftover indexing status.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/Explorer.App/App.xaml

@@ -19,11 +19,43 @@
       <local:ShellIconConverter x:Key="ShellIcon"/>
       <local:ThumbnailConverter x:Key="Thumbnail"/>
       <local:TransferActionTextConverter x:Key="TransferAction"/>
+      <Style x:Key="InlineRenameBox" TargetType="TextBox">
+        <Setter Property="Foreground" Value="{DynamicResource Fg}"/>
+        <Setter Property="Background" Value="{DynamicResource InputBg}"/>
+        <Setter Property="BorderBrush" Value="{DynamicResource Accent}"/>
+        <Setter Property="CaretBrush" Value="{DynamicResource Fg}"/>
+        <Setter Property="MinHeight" Value="22"/>
+        <Setter Property="Padding" Value="2,1"/>
+        <Setter Property="Margin" Value="0,1,8,1"/>
+        <Setter Property="MinWidth" Value="140"/>
+        <Setter Property="VerticalAlignment" Value="Center"/>
+        <Setter Property="FontSize" Value="13"/>
+        <Setter Property="VerticalContentAlignment" Value="Center"/>
+      </Style>
       <DataTemplate x:Key="NameWithIcon">
         <StackPanel Orientation="Horizontal" ToolTip="{Binding SizeTooltip}">
           <Image Width="16" Height="16" Margin="0,0,8,0" RenderOptions.BitmapScalingMode="HighQuality"
                  Source="{Binding Converter={StaticResource ShellIcon}}"/>
-          <TextBlock Text="{Binding Name}" VerticalAlignment="Center" Foreground="{DynamicResource Fg}"/>
+          <TextBlock Tag="ItemName" Text="{Binding Name}" VerticalAlignment="Center" Foreground="{DynamicResource Fg}">
+            <TextBlock.Style>
+              <Style TargetType="TextBlock">
+                <Setter Property="Visibility" Value="Visible"/>
+                <Style.Triggers>
+                  <DataTrigger Binding="{Binding IsRenaming}" Value="True">
+                    <Setter Property="Visibility" Value="Collapsed"/>
+                  </DataTrigger>
+                </Style.Triggers>
+              </Style>
+            </TextBlock.Style>
+          </TextBlock>
+          <TextBox Style="{StaticResource InlineRenameBox}"
+                   Tag="InlineRename"
+                   Text="{Binding EditName, UpdateSourceTrigger=PropertyChanged}"
+                   local:InlineRenameBehavior.Enable="True"
+                   Visibility="{Binding IsRenaming, Converter={StaticResource BoolVis}}"/>
+          <TextBlock Text="{Binding StatusGlyph}" Margin="6,0,0,0" VerticalAlignment="Center"
+                     Foreground="{DynamicResource FgMuted}"
+                     Visibility="{Binding HasStatusGlyph, Converter={StaticResource BoolVis}}"/>
           <TextBlock Text="{Binding CloudStatus}" Margin="8,0,0,0" VerticalAlignment="Center" FontSize="11"
                      Foreground="{DynamicResource FgMuted}"
                      Visibility="{Binding HasCloudStatus, Converter={StaticResource BoolVis}}"/>
@@ -62,8 +94,25 @@
               </Image.Style>
             </Image>
           </Grid>
-          <TextBlock Text="{Binding Name}" TextAlignment="Center" TextWrapping="Wrap" TextTrimming="CharacterEllipsis"
+          <TextBlock Tag="ItemName" Text="{Binding Name}" TextAlignment="Center" TextWrapping="Wrap" TextTrimming="CharacterEllipsis"
-                     MaxHeight="36" Margin="0,4,0,0" Foreground="{DynamicResource Fg}"/>
+                     MaxHeight="36" Margin="0,4,0,0" Foreground="{DynamicResource Fg}">
+            <TextBlock.Style>
+              <Style TargetType="TextBlock">
+                <Setter Property="Visibility" Value="Visible"/>
+                <Style.Triggers>
+                  <DataTrigger Binding="{Binding IsRenaming}" Value="True">
+                    <Setter Property="Visibility" Value="Collapsed"/>
+                  </DataTrigger>
+                </Style.Triggers>
+              </Style>
+            </TextBlock.Style>
+          </TextBlock>
+          <TextBox Style="{StaticResource InlineRenameBox}"
+                   Tag="InlineRename"
+                   MinWidth="80"
+                   Text="{Binding EditName, UpdateSourceTrigger=PropertyChanged}"
+                   local:InlineRenameBehavior.Enable="True"
+                   Visibility="{Binding IsRenaming, Converter={StaticResource BoolVis}}"/>
         </StackPanel>
       </DataTemplate>
 
@@ -237,6 +286,13 @@
         <Setter Property="FontSize" Value="16"/>
         <Setter Property="Margin" Value="0,0,4,0"/>
       </Style>
+      <Style x:Key="QueueActionButton" TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
+        <Setter Property="Padding" Value="8,2"/>
+        <Setter Property="MinWidth" Value="28"/>
+        <Setter Property="MinHeight" Value="24"/>
+        <Setter Property="Margin" Value="0,0,4,0"/>
+        <Setter Property="FontSize" Value="11"/>
+      </Style>
       <Style TargetType="TextBox">
         <Setter Property="Foreground" Value="{DynamicResource Fg}"/>
         <Setter Property="Background" Value="{DynamicResource InputBg}"/>
@@ -578,6 +634,8 @@
             <ControlTemplate TargetType="ListViewItem">
               <Border x:Name="Bd"
                       Background="{TemplateBinding Background}"
+                      BorderBrush="Transparent"
+                      BorderThickness="1"
                       Padding="{TemplateBinding Padding}"
                       SnapsToDevicePixels="True">
                 <Grid>
@@ -605,6 +663,10 @@
                   <Setter TargetName="Bd" Property="Background" Value="{DynamicResource ListSelection}"/>
                   <Setter Property="Foreground" Value="{DynamicResource Fg}"/>
                 </Trigger>
+                <DataTrigger Binding="{Binding IsDropTarget}" Value="True">
+                  <Setter TargetName="Bd" Property="Background" Value="{DynamicResource ListSelection}"/>
+                  <Setter TargetName="Bd" Property="BorderBrush" Value="{DynamicResource Accent}"/>
+                </DataTrigger>
                 <Trigger Property="IsEnabled" Value="False">
                   <Setter Property="Foreground" Value="{DynamicResource FgMuted}"/>
                 </Trigger>
@@ -707,6 +769,8 @@
                 <Border x:Name="Bd"
                         Grid.Column="1"
                         Background="{TemplateBinding Background}"
+                        BorderBrush="Transparent"
+                        BorderThickness="1"
                         Padding="{TemplateBinding Padding}"
                         CornerRadius="3"
                         SnapsToDevicePixels="True">
@@ -745,6 +809,10 @@
                   </MultiTrigger.Conditions>
                   <Setter TargetName="Bd" Property="Background" Value="{DynamicResource TreeSelection}"/>
                 </MultiTrigger>
+                <DataTrigger Binding="{Binding IsDropTarget}" Value="True">
+                  <Setter TargetName="Bd" Property="Background" Value="{DynamicResource TreeSelection}"/>
+                  <Setter TargetName="Bd" Property="BorderBrush" Value="{DynamicResource Accent}"/>
+                </DataTrigger>
                 <Trigger Property="IsEnabled" Value="False">
                   <Setter Property="Foreground" Value="{DynamicResource FgMuted}"/>
                 </Trigger>

src/Explorer.App/AppServices.cs

@@ -40,6 +40,8 @@ public static class AppServices
         services.AddSingleton<IStorageProvider, NextcloudStorageProvider>();
         services.AddSingleton<StorageProviderRegistry>();
         services.AddSingleton<IHydrationGuard, HydrationGuard>();
+        services.AddSingleton<IElevatedScanService, WindowsElevatedScanService>();
+        services.AddSingleton<IRecycleBinCatalog, RecycleBinCatalog>();
         services.AddSingleton<SourceManager>();
         services.AddSingleton<PathHistoryStore>();
         services.AddSingleton<CloudPlaceStore>();

src/Explorer.App/Converters.cs

@@ -72,7 +72,7 @@ public sealed class ThumbnailConverter : IValueConverter
 public sealed class TransferActionTextConverter : IValueConverter
 {
     public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
-        => value is TransferStatus.Failed ? "Dismiss" : "Cancel";
+        => value is TransferStatus.Failed or TransferStatus.Done or TransferStatus.Cancelled ? "Dismiss" : "Remove";
 
     public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
         => throw new NotSupportedException();

src/Explorer.App/InlineRenameBehavior.cs

@@ -0,0 +1,121 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using Explorer.Domain;
+using Explorer.Presentation;
+
+namespace Explorer.App;
+
+public static class InlineRenameBehavior
+{
+    public static readonly DependencyProperty EnableProperty = DependencyProperty.RegisterAttached(
+        "Enable",
+        typeof(bool),
+        typeof(InlineRenameBehavior),
+        new PropertyMetadata(false, OnEnableChanged));
+
+    public static bool GetEnable(DependencyObject obj) => (bool)obj.GetValue(EnableProperty);
+
+    public static void SetEnable(DependencyObject obj, bool value) => obj.SetValue(EnableProperty, value);
+
+    private static void OnEnableChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is not TextBox box)
+        {
+            return;
+        }
+
+        if (e.NewValue is true)
+        {
+            box.Loaded += OnLoaded;
+            box.IsVisibleChanged += OnVisibleChanged;
+            box.PreviewKeyDown += OnPreviewKeyDown;
+            box.LostFocus += OnLostFocus;
+        }
+        else
+        {
+            box.Loaded -= OnLoaded;
+            box.IsVisibleChanged -= OnVisibleChanged;
+            box.PreviewKeyDown -= OnPreviewKeyDown;
+            box.LostFocus -= OnLostFocus;
+        }
+    }
+
+    private static void OnLoaded(object sender, RoutedEventArgs e) => TryFocus(sender as TextBox);
+
+    private static void OnVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
+    {
+        if (sender is TextBox { IsVisible: true } box)
+        {
+            TryFocus(box);
+        }
+    }
+
+    private static void TryFocus(TextBox? box)
+    {
+        if (box?.DataContext is not FolderItemViewModel { IsRenaming: true } item)
+        {
+            return;
+        }
+
+        box.Focus();
+        SelectName(box, item);
+    }
+
+    public static void SelectName(TextBox box, FolderItemViewModel item)
+    {
+        var name = box.Text ?? "";
+        if (item.IsDirectory)
+        {
+            box.SelectAll();
+            return;
+        }
+
+        var ext = NameNormalizer.Extension(name);
+        var length = string.IsNullOrEmpty(ext) ? name.Length : Math.Max(0, name.Length - ext.Length - 1);
+        box.Select(0, length);
+    }
+
+    private static void OnPreviewKeyDown(object sender, KeyEventArgs e)
+    {
+        if (sender is not TextBox box || box.DataContext is not FolderItemViewModel item)
+        {
+            return;
+        }
+
+        if (e.Key == Key.Enter)
+        {
+            e.Handled = true;
+            RequestCommit(box, item);
+        }
+        else if (e.Key == Key.Escape)
+        {
+            e.Handled = true;
+            item.CancelRename();
+        }
+    }
+
+    private static void OnLostFocus(object sender, RoutedEventArgs e)
+    {
+        if (sender is not TextBox box || box.DataContext is not FolderItemViewModel { IsRenaming: true } item)
+        {
+            return;
+        }
+
+        if (Window.GetWindow(box) is MainWindow { IsInlineRenameStarting: true })
+        {
+            box.Dispatcher.BeginInvoke(() => TryFocus(box), System.Windows.Threading.DispatcherPriority.Input);
+            return;
+        }
+
+        RequestCommit(box, item);
+    }
+
+    private static void RequestCommit(TextBox box, FolderItemViewModel item)
+    {
+        if (Window.GetWindow(box) is MainWindow window)
+        {
+            window.TryCommitInlineRename(item);
+        }
+    }
+}

src/Explorer.App/MainWindow.xaml

@@ -139,28 +139,39 @@
 
     <Border DockPanel.Dock="Bottom" Background="{DynamicResource Panel}" BorderBrush="{DynamicResource Stroke}" BorderThickness="0,1,0,0" Padding="8,6">
       <Grid>
-        <TextBlock Text="{Binding Footer}" Foreground="{DynamicResource FgMuted}" VerticalAlignment="Center"/>
+        <Grid.ColumnDefinitions>
-        <StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
+          <ColumnDefinition Width="*"/>
-          <ItemsControl ItemsSource="{Binding Transfers.Jobs}" Margin="0,0,12,0">
+          <ColumnDefinition Width="Auto"/>
-            <ItemsControl.ItemsPanel>
+        </Grid.ColumnDefinitions>
-              <ItemsPanelTemplate>
+        <TextBlock Text="{Binding Footer}" Foreground="{DynamicResource FgMuted}" VerticalAlignment="Center"
-                <StackPanel Orientation="Horizontal"/>
+                   TextTrimming="CharacterEllipsis" Margin="0,0,12,0"/>
-              </ItemsPanelTemplate>
+        <StackPanel Grid.Column="1" Orientation="Horizontal">
-            </ItemsControl.ItemsPanel>
+          <StackPanel Orientation="Horizontal" Margin="0,0,12,0"
-            <ItemsControl.ItemTemplate>
+                      Visibility="{Binding Transfers.HasJobs, Converter={StaticResource BoolVis}}">
-              <DataTemplate>
+            <ProgressBar Width="88" Height="6" Minimum="0" Maximum="1" VerticalAlignment="Center"
-                <StackPanel Orientation="Horizontal" Margin="0,0,10,0">
+                         Value="{Binding Transfers.OverallProgress}"
-                  <TextBlock VerticalAlignment="Center" FontSize="11" Foreground="{DynamicResource FgMuted}"
+                         Visibility="{Binding Transfers.HasOverallProgress, Converter={StaticResource BoolVis}}"/>
-                             Text="{Binding Op, StringFormat={}{0}:}"/>
+            <TextBlock VerticalAlignment="Center" FontSize="11" Foreground="{DynamicResource Fg}" Margin="8,0,0,0"
-                  <TextBlock VerticalAlignment="Center" FontSize="11" Margin="4,0,0,0" Text="{Binding Status}"/>
+                       Text="{Binding Transfers.Summary}" MaxWidth="280" TextTrimming="CharacterEllipsis"/>
-                  <Button Margin="6,0,0,0" Padding="6,2" FontSize="11"
+            <Button Style="{StaticResource QueueActionButton}" Content="Pause" Margin="8,0,0,0"
-                          Content="{Binding Status, Converter={StaticResource TransferAction}}"
+                    Command="{Binding Transfers.PauseAllCommand}"
-                          Command="{Binding DataContext.CancelTransferCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                    Visibility="{Binding Transfers.CanPauseAll, Converter={StaticResource BoolVis}}"/>
-                          CommandParameter="{Binding}"/>
+            <Button Style="{StaticResource QueueActionButton}" Content="Resume"
+                    Command="{Binding Transfers.ResumeAllCommand}"
+                    Visibility="{Binding Transfers.CanResumeAll, Converter={StaticResource BoolVis}}"/>
+            <Button Command="{Binding Transfers.ToggleExpandedCommand}">
+              <Button.Style>
+                <Style TargetType="Button" BasedOn="{StaticResource QueueActionButton}">
+                  <Setter Property="Content" Value="File operations ▴"/>
+                  <Style.Triggers>
+                    <DataTrigger Binding="{Binding Transfers.IsExpanded}" Value="False">
+                      <Setter Property="Content" Value="File operations ▾"/>
+                    </DataTrigger>
+                  </Style.Triggers>
+                </Style>
+              </Button.Style>
+            </Button>
           </StackPanel>
-              </DataTemplate>
-            </ItemsControl.ItemTemplate>
-          </ItemsControl>
           <Button Content="Storage" Command="{Binding Analysis.OpenCommand}" Margin="0,0,6,0"/>
           <Button Content="Duplicates" Command="{Binding Duplicates.OpenCommand}" Margin="0,0,6,0"/>
           <Button Content="Add network" Click="OnAddNetwork" Margin="0,0,6,0"/>
@@ -171,9 +182,103 @@
       </Grid>
     </Border>
 
+    <Border DockPanel.Dock="Bottom" Background="{DynamicResource Panel}"
+            BorderBrush="{DynamicResource Stroke}" BorderThickness="0,1,0,0" Padding="10,8"
+            MaxHeight="280"
+            Visibility="{Binding Transfers.ShowPanel, Converter={StaticResource BoolVis}}">
+      <DockPanel>
+        <DockPanel DockPanel.Dock="Top" Margin="0,0,0,8">
+          <StackPanel DockPanel.Dock="Right" Orientation="Horizontal">
+            <Button Style="{StaticResource QueueActionButton}" Content="Pause all"
+                    Command="{Binding Transfers.PauseAllCommand}"
+                    Visibility="{Binding Transfers.CanPauseAll, Converter={StaticResource BoolVis}}"/>
+            <Button Style="{StaticResource QueueActionButton}" Content="Resume all"
+                    Command="{Binding Transfers.ResumeAllCommand}"
+                    Visibility="{Binding Transfers.CanResumeAll, Converter={StaticResource BoolVis}}"/>
+            <Button Style="{StaticResource QueueActionButton}" Content="Clear finished"
+                    Command="{Binding Transfers.ClearFinishedCommand}"
+                    Visibility="{Binding Transfers.HasFinishedJobs, Converter={StaticResource BoolVis}}"/>
+            <Button Style="{StaticResource QueueActionButton}" Content="Hide" Margin="0"
+                    Command="{Binding Transfers.ToggleExpandedCommand}"/>
+          </StackPanel>
+          <TextBlock FontWeight="SemiBold" Foreground="{DynamicResource Fg}" VerticalAlignment="Center" Text="File operations queue"/>
+        </DockPanel>
+          <TextBlock DockPanel.Dock="Top" FontSize="11" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,8"
+                   Text="Copy, move, and delete run one at a time. Pause a queued step to skip it, or reorder with the arrows."
+                   TextWrapping="Wrap"/>
+        <ScrollViewer VerticalScrollBarVisibility="Auto">
+          <ItemsControl ItemsSource="{Binding Transfers.Jobs}">
+            <ItemsControl.ItemTemplate>
+              <DataTemplate>
+                <Border Background="{DynamicResource Fill}" BorderBrush="{DynamicResource Stroke}" BorderThickness="1"
+                        CornerRadius="4" Padding="8,6" Margin="0,0,0,6">
                   <Grid>
                     <Grid.ColumnDefinitions>
-        <ColumnDefinition Width="260" MinWidth="160"/>
+                      <ColumnDefinition Width="Auto"/>
+                      <ColumnDefinition Width="*"/>
+                      <ColumnDefinition Width="Auto"/>
+                    </Grid.ColumnDefinitions>
+                    <StackPanel VerticalAlignment="Center" Margin="0,0,8,0">
+                      <Button Style="{StaticResource QueueActionButton}" Content="↑" Margin="0,0,0,2"
+                              ToolTip="Move earlier"
+                              Command="{Binding DataContext.Transfers.MoveUpCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                              CommandParameter="{Binding}"
+                              IsEnabled="{Binding CanMoveUp}"/>
+                      <Button Style="{StaticResource QueueActionButton}" Content="↓" Margin="0"
+                              ToolTip="Move later"
+                              Command="{Binding DataContext.Transfers.MoveDownCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                              CommandParameter="{Binding}"
+                              IsEnabled="{Binding CanMoveDown}"/>
+                    </StackPanel>
+                    <StackPanel Grid.Column="1">
+                      <DockPanel>
+                        <TextBlock DockPanel.Dock="Right" FontSize="11" Foreground="{DynamicResource FgMuted}"
+                                   Text="{Binding BytesText}" Margin="8,0,0,0"/>
+                        <TextBlock FontWeight="SemiBold" Foreground="{DynamicResource Fg}" Text="{Binding Title}"
+                                   TextTrimming="CharacterEllipsis"/>
+                      </DockPanel>
+                      <TextBlock FontSize="11" Foreground="{DynamicResource FgMuted}" Text="{Binding Subtitle}"
+                                 TextTrimming="CharacterEllipsis"/>
+                      <DockPanel Margin="0,2,0,0">
+                        <TextBlock DockPanel.Dock="Right" FontSize="11" Foreground="{DynamicResource Accent}"
+                                   Text="{Binding SpeedText}" Margin="8,0,0,0"/>
+                        <TextBlock FontSize="11" Foreground="{DynamicResource Fg}" Text="{Binding StatusText}"
+                                   TextTrimming="CharacterEllipsis"/>
+                      </DockPanel>
+                      <ProgressBar Height="6" Minimum="0" Maximum="1" Margin="0,6,0,0"
+                                   Value="{Binding Progress}"
+                                   Visibility="{Binding HasProgress, Converter={StaticResource BoolVis}}"/>
+                      <TextBlock FontSize="11" Foreground="{DynamicResource FgMuted}" Margin="0,4,0,0"
+                                 Text="{Binding CurrentFile}"
+                                 Visibility="{Binding HasCurrentFile, Converter={StaticResource BoolVis}}"/>
+                    </StackPanel>
+                    <StackPanel Grid.Column="2" Orientation="Horizontal" VerticalAlignment="Center" Margin="10,0,0,0">
+                      <Button Style="{StaticResource QueueActionButton}" Content="Pause"
+                              Command="{Binding DataContext.Transfers.PauseCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                              CommandParameter="{Binding}"
+                              Visibility="{Binding CanPause, Converter={StaticResource BoolVis}}"/>
+                      <Button Style="{StaticResource QueueActionButton}" Content="Resume"
+                              Command="{Binding DataContext.Transfers.ResumeCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                              CommandParameter="{Binding}"
+                              Visibility="{Binding CanResume, Converter={StaticResource BoolVis}}"/>
+                      <Button Style="{StaticResource QueueActionButton}" Margin="0"
+                              Content="{Binding Status, Converter={StaticResource TransferAction}}"
+                              Command="{Binding DataContext.Transfers.RemoveCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                              CommandParameter="{Binding}"
+                              IsEnabled="{Binding CanRemove}"/>
+                    </StackPanel>
+                  </Grid>
+                </Border>
+              </DataTemplate>
+            </ItemsControl.ItemTemplate>
+          </ItemsControl>
+        </ScrollViewer>
+      </DockPanel>
+    </Border>
+
+    <Grid>
+      <Grid.ColumnDefinitions>
+        <ColumnDefinition x:Name="TreeColumn" Width="260" MinWidth="160"/>
         <ColumnDefinition Width="6"/>
         <ColumnDefinition Width="*"/>
       </Grid.ColumnDefinitions>
@@ -186,6 +291,7 @@
                   AllowDrop="True"
                   DragEnter="OnTreeDragOver"
                   DragOver="OnTreeDragOver"
+                  DragLeave="OnTreeDragLeave"
                   Drop="OnTreeDrop"
                   HorizontalContentAlignment="Stretch">
           <TreeView.ContextMenu>
@@ -250,7 +356,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               VirtualizingPanel.IsVirtualizing="True"
@@ -266,33 +374,34 @@
                           <GridViewColumn Header="Date modified" Width="148" DisplayMemberBinding="{Binding ModifiedLabel}"/>
                           <GridViewColumn Header="Type" Width="100" DisplayMemberBinding="{Binding TypeLabel}"/>
                           <GridViewColumn Header="Size" Width="110" DisplayMemberBinding="{Binding SizeLabel}"/>
+                          <GridViewColumn Header="Free space" Width="110" DisplayMemberBinding="{Binding FreeSpaceLabel}"/>
                         </GridView>
                       </ListView.View>
                       <ListView.ContextMenu>
                         <ContextMenu>
                           <MenuItem Header="Open" Click="OnCtxOpen"/>
                           <Separator/>
-                          <MenuItem Header="Cut" Command="{Binding DataContext.CutCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Cut" Command="{Binding CutCommand}"/>
-                          <MenuItem Header="Copy" Command="{Binding DataContext.CopyCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Copy" Command="{Binding CopyCommand}"/>
-                          <MenuItem Header="Paste" Command="{Binding DataContext.PasteCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Paste" Command="{Binding PasteCommand}"/>
                           <MenuItem Header="Delete" Click="OnCtxDelete" InputGestureText="Del"/>
                           <MenuItem Header="Rename" Click="OnCtxRename"/>
                           <Separator/>
-                          <MenuItem Header="New folder" Command="{Binding DataContext.NewFolderCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="New folder" Click="OnCtxNewFolder"/>
-                          <MenuItem Header="Copy path" Command="{Binding DataContext.CopyPathCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Copy path" Click="OnCtxCopyPath"/>
                           <Separator/>
-                          <MenuItem Header="Refresh" Command="{Binding DataContext.RefreshCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Refresh" Command="{Binding RefreshCommand}"/>
-                          <MenuItem Header="Rescan folder" Command="{Binding DataContext.RescanFolderCommand, RelativeSource={RelativeSource AncestorType=Window}}"/>
+                          <MenuItem Header="Rescan folder" Command="{Binding RescanFolderCommand}"/>
-                          <Separator Visibility="{Binding DataContext.ShowForgetSource, RelativeSource={RelativeSource AncestorType=Window}, Converter={StaticResource BoolVis}}"/>
+                          <Separator Visibility="{Binding ShowForgetSource, Converter={StaticResource BoolVis}}"/>
                           <MenuItem Header="Remove from Explorer" Click="OnRemoveLocation"
-                                    Visibility="{Binding DataContext.ShowForgetSource, RelativeSource={RelativeSource AncestorType=Window}, Converter={StaticResource BoolVis}}"/>
+                                    Visibility="{Binding ShowForgetSource, Converter={StaticResource BoolVis}}"/>
-                          <Separator Visibility="{Binding DataContext.ShowCloudPin, RelativeSource={RelativeSource AncestorType=Window}, Converter={StaticResource BoolVis}}"/>
+                          <Separator Visibility="{Binding ShowCloudPin, Converter={StaticResource BoolVis}}"/>
                           <MenuItem Header="Always keep on this device"
-                                    Command="{Binding DataContext.PinCloudCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                                    Command="{Binding PinCloudCommand}"
-                                    Visibility="{Binding DataContext.ShowCloudPin, RelativeSource={RelativeSource AncestorType=Window}, Converter={StaticResource BoolVis}}"/>
+                                    Visibility="{Binding ShowCloudPin, Converter={StaticResource BoolVis}}"/>
                           <MenuItem Header="Free up space"
-                                    Command="{Binding DataContext.FreeUpCloudSpaceCommand, RelativeSource={RelativeSource AncestorType=Window}}"
+                                    Command="{Binding FreeUpCloudSpaceCommand}"
-                                    Visibility="{Binding DataContext.ShowCloudDehydrate, RelativeSource={RelativeSource AncestorType=Window}, Converter={StaticResource BoolVis}}"/>
+                                    Visibility="{Binding ShowCloudDehydrate, Converter={StaticResource BoolVis}}"/>
                         </ContextMenu>
                       </ListView.ContextMenu>
                     </ListView>
@@ -303,7 +412,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               VirtualizingPanel.IsVirtualizing="True"
@@ -328,7 +439,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               GotFocus="OnPaneFocus"
@@ -375,7 +488,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               VirtualizingPanel.IsVirtualizing="True"
@@ -391,6 +506,7 @@
                           <GridViewColumn Header="Date modified" Width="148" DisplayMemberBinding="{Binding ModifiedLabel}"/>
                           <GridViewColumn Header="Type" Width="100" DisplayMemberBinding="{Binding TypeLabel}"/>
                           <GridViewColumn Header="Size" Width="110" DisplayMemberBinding="{Binding SizeLabel}"/>
+                          <GridViewColumn Header="Free space" Width="110" DisplayMemberBinding="{Binding FreeSpaceLabel}"/>
                         </GridView>
                       </ListView.View>
                     </ListView>
@@ -401,7 +517,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               VirtualizingPanel.IsVirtualizing="True"
@@ -426,7 +544,9 @@
                               PreviewMouseLeftButtonDown="OnListMouseDown"
                               PreviewMouseRightButtonDown="OnListMouseDown"
                               ContextMenuOpening="OnListContextMenuOpening"
+                              GridViewColumnHeader.Click="OnColumnHeaderClick"
                               DragEnter="OnListDragOver"
+                              DragLeave="OnListDragLeave"
                               Drop="OnListDrop"
                               DragOver="OnListDragOver"
                               GotFocus="OnPaneFocus"
@@ -506,6 +626,7 @@
                   <GridViewColumn Header="Name" Width="220" CellTemplate="{StaticResource NameWithIcon}"/>
                   <GridViewColumn Header="Path" Width="420" DisplayMemberBinding="{Binding FullPath}"/>
                   <GridViewColumn Header="Size" Width="100" DisplayMemberBinding="{Binding SizeLabel}"/>
+                  <GridViewColumn Header="Free space" Width="100" DisplayMemberBinding="{Binding FreeSpaceLabel}"/>
                 </GridView>
               </ListView.View>
             </ListView>

src/Explorer.App/MainWindow.xaml.cs

@@ -1,9 +1,12 @@
 using System.ComponentModel;
+using System.IO;
+using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
 using System.Windows.Input;
 using System.Windows.Media;
+using System.Windows.Threading;
 using Explorer.Domain;
 using Explorer.Presentation;
 using Explorer.Presentation.ViewModels;
@@ -19,27 +22,48 @@ public partial class MainWindow : Window
     private bool _suppressItemContextMenu;
     private bool _incomingRightDrag;
     private bool _sourceRightDrag;
+    private MainViewModel? _wiredVm;
+    private long _inlineRenameStarted;
+    private DispatcherTimer? _clickRenameTimer;
+    private FolderItemViewModel? _clickRenameItem;
+    private FolderItemViewModel? _listDropTarget;
+    private NavNodeViewModel? _treeDropTarget;
 
     public MainWindow()
     {
         InitializeComponent();
         DataContextChanged += (_, _) =>
         {
-            if (DataContext is MainViewModel vm)
+            if (_wiredVm is not null)
             {
-                vm.PropertyChanged += (_, e) =>
+                _wiredVm.InlineRenameRequested -= OnInlineRenameRequested;
+                _wiredVm.PropertyChanged -= OnViewModelPropertyChanged;
+            }
+
+            _wiredVm = DataContext as MainViewModel;
+            if (_wiredVm is not null)
             {
-                    if (e.PropertyName == nameof(MainViewModel.Theme))
+                _wiredVm.InlineRenameRequested += OnInlineRenameRequested;
-                    {
+                _wiredVm.PropertyChanged += OnViewModelPropertyChanged;
-                        ApplyTheme(vm.Theme);
+                RestoreLayout(_wiredVm);
-                    }
-                };
             }
         };
+        Closing += (_, _) => PersistLayout();
     }
 
     private MainViewModel Vm => (MainViewModel)DataContext;
 
+    private void OnViewModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName == nameof(MainViewModel.Theme) && sender is MainViewModel vm)
+        {
+            ApplyTheme(vm.Theme);
+        }
+    }
+
+    private void OnInlineRenameRequested(object? sender, string path)
+        => Dispatcher.BeginInvoke(() => BeginInlineRenameForPath(path), DispatcherPriority.Loaded);
+
     private void ApplyTheme(string theme)
     {
         var dicts = System.Windows.Application.Current.Resources.MergedDictionaries;
@@ -75,9 +99,77 @@ public partial class MainWindow : Window
     private void ToggleMaximized()
     {
         WindowState = WindowState == WindowState.Maximized ? WindowState.Normal : WindowState.Maximized;
-        MaxRestoreButton.Content = WindowState == WindowState.Maximized ? "❐" : "☐";
+        SyncMaxRestoreButton();
     }
 
+    private void RestoreLayout(MainViewModel vm)
+    {
+        var prefs = vm.CurrentPreferences();
+        if (prefs.WindowWidth is > 0 && prefs.WindowHeight is > 0)
+        {
+            Width = Clamp(prefs.WindowWidth.Value, MinWidth, SystemParameters.VirtualScreenWidth);
+            Height = Clamp(prefs.WindowHeight.Value, MinHeight, SystemParameters.VirtualScreenHeight);
+        }
+
+        if (prefs.WindowLeft is not null && prefs.WindowTop is not null)
+        {
+            WindowStartupLocation = WindowStartupLocation.Manual;
+            Left = prefs.WindowLeft.Value;
+            Top = prefs.WindowTop.Value;
+            if (!IsOnVirtualScreen())
+            {
+                WindowStartupLocation = WindowStartupLocation.CenterScreen;
+            }
+        }
+
+        if (prefs.WindowMaximized)
+        {
+            WindowState = WindowState.Maximized;
+        }
+
+        SyncMaxRestoreButton();
+        if (prefs.TreeWidth is >= 160)
+        {
+            var maxTree = Math.Max(160, ActualWidth > 0 ? ActualWidth - 240 : Width - 240);
+            TreeColumn.Width = new GridLength(Clamp(prefs.TreeWidth.Value, 160, maxTree));
+        }
+    }
+
+    private void PersistLayout()
+    {
+        if (DataContext is not MainViewModel vm)
+        {
+            return;
+        }
+
+        var bounds = WindowState == WindowState.Normal ? new Rect(Left, Top, Width, Height) : RestoreBounds;
+        if (bounds.Width <= 0 || bounds.Height <= 0)
+        {
+            bounds = new Rect(Left, Top, Width, Height);
+        }
+
+        var treeWidth = TreeColumn.ActualWidth > 0 ? TreeColumn.ActualWidth : TreeColumn.Width.Value;
+        vm.SaveLayout(bounds.Width, bounds.Height, bounds.Left, bounds.Top, WindowState == WindowState.Maximized, treeWidth);
+    }
+
+    private void SyncMaxRestoreButton()
+        => MaxRestoreButton.Content = WindowState == WindowState.Maximized ? "❐" : "☐";
+
+    private bool IsOnVirtualScreen()
+    {
+        var virtualArea = new Rect(
+            SystemParameters.VirtualScreenLeft,
+            SystemParameters.VirtualScreenTop,
+            SystemParameters.VirtualScreenWidth,
+            SystemParameters.VirtualScreenHeight);
+        var window = new Rect(Left, Top, Math.Max(Width, MinWidth), Math.Max(Height, MinHeight));
+        window.Intersect(virtualArea);
+        return window.Width >= 80 && window.Height >= 80;
+    }
+
+    private static double Clamp(double value, double min, double max)
+        => Math.Min(Math.Max(value, min), Math.Max(min, max));
+
     private void OnPaneChromeMouseDown(object sender, MouseButtonEventArgs e)
     {
         if (sender is FrameworkElement { DataContext: ExplorerPaneViewModel pane })
@@ -342,7 +434,8 @@ public partial class MainWindow : Window
 
     private async void OnItemDoubleClick(object sender, MouseButtonEventArgs e)
     {
-        if (sender is ListView { SelectedItem: FolderItemViewModel item })
+        CancelClickRename();
+        if (sender is ListView { SelectedItem: FolderItemViewModel item } && !item.IsRenaming)
         {
             ActivatePaneFromList((ListView)sender);
             await Vm.ActivePane.OpenItemAsync(item).ConfigureAwait(true);
@@ -350,6 +443,82 @@ public partial class MainWindow : Window
         }
     }
 
+    private void OnColumnHeaderClick(object sender, RoutedEventArgs e)
+    {
+        if (e.OriginalSource is Thumb || sender is not ListView list)
+        {
+            return;
+        }
+
+        var header = e.OriginalSource as GridViewColumnHeader
+                     ?? FindGridViewColumnHeader(e.OriginalSource as DependencyObject);
+        if (header is null || header.Role == GridViewColumnHeaderRole.Padding)
+        {
+            return;
+        }
+
+        var key = SortKeyFromHeader(header.Column?.Header);
+        if (key is null)
+        {
+            return;
+        }
+
+        ActivatePaneFromList(list);
+        Vm.ActivePane.SortBy(key);
+        UpdateSortGlyphs(list, Vm.ActivePane);
+    }
+
+    private static GridViewColumnHeader? FindGridViewColumnHeader(DependencyObject? origin)
+    {
+        while (origin is not null)
+        {
+            if (origin is GridViewColumnHeader header)
+            {
+                return header;
+            }
+
+            origin = origin is Visual
+                ? VisualTreeHelper.GetParent(origin)
+                : LogicalTreeHelper.GetParent(origin);
+        }
+
+        return null;
+    }
+
+    private static void UpdateSortGlyphs(ListView list, ExplorerPaneViewModel pane)
+    {
+        if (list.View is not GridView grid)
+        {
+            return;
+        }
+
+        foreach (var column in grid.Columns)
+        {
+            var title = StripSortGlyph(column.Header?.ToString());
+            var key = SortKeyFromHeader(title);
+            column.Header = key is not null && string.Equals(pane.SortProperty, key, StringComparison.OrdinalIgnoreCase)
+                ? title + (pane.SortDescending ? " ▼" : " ▲")
+                : title;
+        }
+    }
+
+    private static string? SortKeyFromHeader(object? header)
+        => StripSortGlyph(header?.ToString()) switch
+        {
+            "Name" => "Name",
+            "Date modified" => "Modified",
+            "Type" => "Type",
+            "Size" => "Size",
+            "Free space" => "Free",
+            _ => null
+        };
+
+    private static string StripSortGlyph(string? header)
+    {
+        var text = header ?? "";
+        return text.Replace(" ▲", "", StringComparison.Ordinal).Replace(" ▼", "", StringComparison.Ordinal).Trim();
+    }
+
     private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
     {
         if (sender is not ListView list)
@@ -358,6 +527,11 @@ public partial class MainWindow : Window
         }
 
         ActivatePaneFromList(list);
+        if (_clickRenameItem is not null && !list.SelectedItems.Contains(_clickRenameItem))
+        {
+            CancelClickRename();
+        }
+
         Vm.ActivePane.SelectedItems.Clear();
         foreach (FolderItemViewModel item in list.SelectedItems)
         {
@@ -395,6 +569,7 @@ public partial class MainWindow : Window
         _dragPending = true;
         _dragButton = e.ChangedButton;
         _dragItem = HitTestFolderItem(sender as DependencyObject, e.GetPosition((IInputElement)sender));
+        TryScheduleClickRename(sender as ListView, e);
     }
 
     private void OnListContextMenuOpening(object sender, ContextMenuEventArgs e)
@@ -403,6 +578,12 @@ public partial class MainWindow : Window
         {
             e.Handled = true;
             _suppressItemContextMenu = false;
+            return;
+        }
+
+        if (sender is FrameworkElement { ContextMenu: { } menu })
+        {
+            menu.DataContext = DataContext;
         }
     }
 
@@ -410,6 +591,7 @@ public partial class MainWindow : Window
     {
         if (!TryGetDropFiles(e, out var files) || sender is not ListView list)
         {
+            SetListDropTarget(null);
             e.Effects = DragDropEffects.None;
             e.Handled = true;
             return;
@@ -418,6 +600,15 @@ public partial class MainWindow : Window
         ActivatePaneFromList(list);
         _incomingRightDrag = (e.KeyStates & DragDropKeyStates.RightMouseButton) != 0;
         var dest = ResolveDropDirectory(list, e);
+        var hover = HitTestFolderItem(list, e.GetPosition(list));
+        var folderTarget = hover is { IsDirectory: true }
+                           && dest is not null
+                           && NavigationTreeViewModel.PathsEqual(hover.FullPath, dest)
+                           && !DragDropPolicy.IsInvalidTarget(files, dest)
+            ? hover
+            : null;
+        SetListDropTarget(folderTarget);
+        SetTreeDropTarget(null);
         if (dest is null || DragDropPolicy.IsInvalidTarget(files, dest))
         {
             e.Effects = DragDropEffects.None;
@@ -439,6 +630,7 @@ public partial class MainWindow : Window
 
     private async void OnListDrop(object sender, DragEventArgs e)
     {
+        ClearDropTargets();
         if (!TryGetDropFiles(e, out var files) || sender is not ListView list)
         {
             return;
@@ -463,6 +655,35 @@ public partial class MainWindow : Window
         await ApplyDropAsync(files, dest, ResolveDropAction(e, files, dest)).ConfigureAwait(true);
     }
 
+    private void OnListDragLeave(object sender, DragEventArgs e)
+    {
+        if (sender is ListView list)
+        {
+            var pos = e.GetPosition(list);
+            if (pos.X >= 0 && pos.Y >= 0 && pos.X <= list.ActualWidth && pos.Y <= list.ActualHeight)
+            {
+                return;
+            }
+        }
+
+        SetListDropTarget(null);
+    }
+
+    protected override void OnPreviewMouseDown(MouseButtonEventArgs e)
+    {
+        if (!IsInsideInlineRenameBox(e.OriginalSource as DependencyObject))
+        {
+            CommitOpenInlineRename();
+        }
+
+        if (!IsClickOnItemName(e.OriginalSource as DependencyObject))
+        {
+            CancelClickRename();
+        }
+
+        base.OnPreviewMouseDown(e);
+    }
+
     protected override void OnPreviewMouseMove(MouseEventArgs e)
     {
         base.OnPreviewMouseMove(e);
@@ -481,6 +702,7 @@ public partial class MainWindow : Window
         }
 
         _dragPending = false;
+        CancelClickRename();
         var selected = Vm.ActivePane.SelectedItems.Select(i => i.FullPath).ToList();
         IReadOnlyList<string> paths;
         if (_dragItem is not null && (selected.Count == 0
@@ -504,6 +726,7 @@ public partial class MainWindow : Window
         DragDrop.DoDragDrop(this, data, DragDropEffects.Copy | DragDropEffects.Move | DragDropEffects.Link);
         _sourceRightDrag = false;
         _incomingRightDrag = false;
+        ClearDropTargets();
     }
 
     protected override void OnQueryContinueDrag(QueryContinueDragEventArgs e)
@@ -638,20 +861,27 @@ public partial class MainWindow : Window
     {
         if (!TryGetDropFiles(e, out var files))
         {
+            SetTreeDropTarget(null);
             e.Effects = DragDropEffects.None;
             e.Handled = true;
             return;
         }
 
         _incomingRightDrag = (e.KeyStates & DragDropKeyStates.RightMouseButton) != 0;
-        var dest = HitTestTreePath(e);
+        var node = HitTestTreeNode(e);
+        var dest = node is null || node.IsPlaceholder || node.IsGroup || LocationRoots.IsVirtual(node.Path)
+            ? null
+            : node.Path;
         if (dest is null || DragDropPolicy.IsInvalidTarget(files, dest))
         {
+            SetTreeDropTarget(null);
             e.Effects = DragDropEffects.None;
             e.Handled = true;
             return;
         }
 
+        SetListDropTarget(null);
+        SetTreeDropTarget(node);
         e.Effects = _incomingRightDrag || _sourceRightDrag
             ? DragDropEffects.Copy | DragDropEffects.Move | DragDropEffects.Link
             : ToEffects(ResolveDropAction(e, files, dest));
@@ -660,6 +890,7 @@ public partial class MainWindow : Window
 
     private async void OnTreeDrop(object sender, DragEventArgs e)
     {
+        ClearDropTargets();
         if (!TryGetDropFiles(e, out var files))
         {
             return;
@@ -683,11 +914,20 @@ public partial class MainWindow : Window
         await ApplyDropAsync(files, dest, ResolveDropAction(e, files, dest)).ConfigureAwait(true);
     }
 
+    private void OnTreeDragLeave(object sender, DragEventArgs e)
+    {
+        var pos = e.GetPosition(NavTree);
+        if (pos.X >= 0 && pos.Y >= 0 && pos.X <= NavTree.ActualWidth && pos.Y <= NavTree.ActualHeight)
+        {
+            return;
+        }
+
+        SetTreeDropTarget(null);
+    }
+
     private string? HitTestTreePath(DragEventArgs e)
     {
-        var origin = NavTree.InputHitTest(e.GetPosition(NavTree)) as DependencyObject
+        var node = HitTestTreeNode(e);
-                     ?? e.OriginalSource as DependencyObject;
-        var node = FindTreeNode(origin);
         if (node is null || node.IsPlaceholder || node.IsGroup || LocationRoots.IsVirtual(node.Path))
         {
             return null;
@@ -696,6 +936,57 @@ public partial class MainWindow : Window
         return node.Path;
     }
 
+    private NavNodeViewModel? HitTestTreeNode(DragEventArgs e)
+    {
+        var origin = NavTree.InputHitTest(e.GetPosition(NavTree)) as DependencyObject
+                     ?? e.OriginalSource as DependencyObject;
+        return FindTreeNode(origin);
+    }
+
+    private void SetListDropTarget(FolderItemViewModel? item)
+    {
+        if (ReferenceEquals(_listDropTarget, item))
+        {
+            return;
+        }
+
+        if (_listDropTarget is not null)
+        {
+            _listDropTarget.IsDropTarget = false;
+        }
+
+        _listDropTarget = item;
+        if (item is not null)
+        {
+            item.IsDropTarget = true;
+        }
+    }
+
+    private void SetTreeDropTarget(NavNodeViewModel? node)
+    {
+        if (ReferenceEquals(_treeDropTarget, node))
+        {
+            return;
+        }
+
+        if (_treeDropTarget is not null)
+        {
+            _treeDropTarget.IsDropTarget = false;
+        }
+
+        _treeDropTarget = node;
+        if (node is not null)
+        {
+            node.IsDropTarget = true;
+        }
+    }
+
+    private void ClearDropTargets()
+    {
+        SetListDropTarget(null);
+        SetTreeDropTarget(null);
+    }
+
     private async void OnSearchDoubleClick(object sender, MouseButtonEventArgs e)
     {
         if (sender is ListView { SelectedItem: FolderItemViewModel item })
@@ -760,6 +1051,10 @@ public partial class MainWindow : Window
 
     private void OnCtxOpen(object sender, RoutedEventArgs e) => Vm.OpenSelectedCommand.Execute(null);
 
+    private void OnCtxNewFolder(object sender, RoutedEventArgs e) => Vm.NewFolderCommand.Execute(null);
+
+    private void OnCtxCopyPath(object sender, RoutedEventArgs e) => Vm.CopyPathCommand.Execute(null);
+
     private async void OnCtxDelete(object sender, RoutedEventArgs e)
         => await DeleteSelectedAsync().ConfigureAwait(true);
 
@@ -790,16 +1085,211 @@ public partial class MainWindow : Window
     private void OnCtxRename(object sender, RoutedEventArgs e)
     {
         var item = Vm.ActivePane.SelectedItems.FirstOrDefault();
+        if (item is not null)
+        {
+            BeginInlineRename(item);
+        }
+    }
+
+    private void BeginInlineRenameForPath(string path)
+    {
+        var item = Vm.ActivePane.Items.FirstOrDefault(i => NavigationTreeViewModel.PathsEqual(i.FullPath, path));
         if (item is null)
         {
             return;
         }
 
-        var name = PromptWindow.Ask(this, "Rename", "New name:", item.Name);
+        BeginInlineRename(item);
-        if (!string.IsNullOrWhiteSpace(name) && name != item.Name)
-        {
-            Vm.RenameSelected(name);
     }
+
+    private void BeginInlineRename(FolderItemViewModel item)
+    {
+        foreach (var other in Vm.ActivePane.Items.Where(i => i.IsRenaming && i != item))
+        {
+            other.CancelRename();
+        }
+
+        var list = FindActiveFileList();
+        if (list is not null)
+        {
+            list.SelectedItem = item;
+            list.ScrollIntoView(item);
+            list.UpdateLayout();
+        }
+
+        CancelClickRename();
+        _inlineRenameStarted = Environment.TickCount64;
+        item.BeginRename();
+    }
+
+    private void TryScheduleClickRename(ListView? list, MouseButtonEventArgs e)
+    {
+        if (list is null
+            || e.ChangedButton != MouseButton.Left
+            || _dragItem is null
+            || _dragItem.IsRenaming
+            || Keyboard.Modifiers is not ModifierKeys.None
+            || !IsClickOnItemName(e.OriginalSource as DependencyObject)
+            || list.SelectedItems.Count != 1
+            || !list.SelectedItems.Contains(_dragItem))
+        {
+            CancelClickRename();
+            return;
+        }
+
+        CancelClickRename();
+        _clickRenameItem = _dragItem;
+        _clickRenameTimer = new DispatcherTimer
+        {
+            Interval = TimeSpan.FromMilliseconds(Math.Max(GetDoubleClickTime(), 1))
+        };
+        _clickRenameTimer.Tick += OnClickRenameTick;
+        _clickRenameTimer.Start();
+    }
+
+    private void OnClickRenameTick(object? sender, EventArgs e)
+    {
+        var item = _clickRenameItem;
+        CancelClickRename();
+        if (item is not null && Vm.ActivePane.Items.Contains(item) && !item.IsRenaming)
+        {
+            BeginInlineRename(item);
+        }
+    }
+
+    private void CancelClickRename()
+    {
+        if (_clickRenameTimer is not null)
+        {
+            _clickRenameTimer.Tick -= OnClickRenameTick;
+            _clickRenameTimer.Stop();
+            _clickRenameTimer = null;
+        }
+
+        _clickRenameItem = null;
+    }
+
+    private static bool IsClickOnItemName(DependencyObject? origin)
+    {
+        while (origin is not null)
+        {
+            if (origin is TextBox { Tag: "InlineRename" } || origin is FrameworkElement { Tag: "ItemName" })
+            {
+                return true;
+            }
+
+            origin = origin is Visual
+                ? VisualTreeHelper.GetParent(origin)
+                : LogicalTreeHelper.GetParent(origin);
+        }
+
+        return false;
+    }
+
+    [DllImport("user32.dll")]
+    private static extern uint GetDoubleClickTime();
+
+    internal bool IsInlineRenameStarting
+        => Environment.TickCount64 - _inlineRenameStarted < 300;
+
+    private void CommitOpenInlineRename()
+    {
+        if (DataContext is not MainViewModel)
+        {
+            return;
+        }
+
+        foreach (var pane in new[] { Vm.ActiveTab.Left, Vm.ActiveTab.Right })
+        {
+            foreach (var item in pane.Items.Where(i => i.IsRenaming).ToList())
+            {
+                TryCommitInlineRename(item);
+            }
+        }
+    }
+
+    private static bool IsInsideInlineRenameBox(DependencyObject? origin)
+    {
+        while (origin is not null)
+        {
+            if (origin is TextBox { Tag: "InlineRename" })
+            {
+                return true;
+            }
+
+            origin = origin is Visual
+                ? VisualTreeHelper.GetParent(origin)
+                : LogicalTreeHelper.GetParent(origin);
+        }
+
+        return false;
+    }
+
+    public void TryCommitInlineRename(FolderItemViewModel item)
+    {
+        if (!item.IsRenaming)
+        {
+            return;
+        }
+
+        var newName = item.EditName.Trim();
+        if (string.IsNullOrWhiteSpace(newName) || newName.Equals(item.Item.Name, StringComparison.Ordinal))
+        {
+            item.CancelRename();
+            return;
+        }
+
+        if (newName.IndexOfAny(Path.GetInvalidFileNameChars()) >= 0)
+        {
+            MessageBox.Show(
+                this,
+                "A file name can't contain any of the following characters:\n\\ / : * ? \" < > |",
+                "Rename",
+                MessageBoxButton.OK,
+                MessageBoxImage.Warning);
+            item.BeginRename();
+            item.EditName = newName;
+            return;
+        }
+
+        try
+        {
+            item.IsRenaming = false;
+            Vm.RenameItem(item, newName);
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(this, ex.Message, "Rename", MessageBoxButton.OK, MessageBoxImage.Warning);
+            item.BeginRename();
+            item.EditName = newName;
+        }
+    }
+
+    private ListView? FindActiveFileList()
+    {
+        var items = Vm.ActivePane.Items;
+        return FindVisibleList(this, items);
+    }
+
+    private static ListView? FindVisibleList(DependencyObject root, object items)
+    {
+        var count = VisualTreeHelper.GetChildrenCount(root);
+        for (var i = 0; i < count; i++)
+        {
+            var child = VisualTreeHelper.GetChild(root, i);
+            if (child is ListView { IsVisible: true } list && ReferenceEquals(list.ItemsSource, items))
+            {
+                return list;
+            }
+
+            var nested = FindVisibleList(child, items);
+            if (nested is not null)
+            {
+                return nested;
+            }
+        }
+
+        return null;
     }
 
     private async void OnOpenSettings(object sender, RoutedEventArgs e)
@@ -845,8 +1335,21 @@ public partial class MainWindow : Window
 
     private async void OnPreviewKeyDown(object sender, KeyEventArgs e)
     {
+        if (e.OriginalSource is TextBox { Tag: "InlineRename" })
+        {
+            return;
+        }
+
         var ctrl = Keyboard.Modifiers.HasFlag(ModifierKeys.Control);
+        var shift = Keyboard.Modifiers.HasFlag(ModifierKeys.Shift);
         var alt = Keyboard.Modifiers.HasFlag(ModifierKeys.Alt);
+        if (ctrl && shift && e.Key == Key.N)
+        {
+            Vm.NewFolderCommand.Execute(null);
+            e.Handled = true;
+            return;
+        }
+
         if (e.Key == Key.F5)
         {
             await Vm.RefreshAsync().ConfigureAwait(true);

src/Explorer.App/Services/WpfClipboard.cs

@@ -21,6 +21,9 @@ public sealed class WpfClipboard : IOsClipboard
         Clipboard.SetDataObject(data, copy: true);
     }
 
+    public void SetText(string text)
+        => Clipboard.SetText(text);
+
     public bool TryGetFiles(out IReadOnlyList<string> paths, out bool cut)
     {
         paths = [];

src/Explorer.App/SettingsWindow.xaml

@@ -3,8 +3,8 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="Settings"
         Icon="pack://application:,,,/Assets/explorer-workbench.ico"
-        Height="620" Width="560"
+        Height="720" Width="560"
-        MinHeight="520" MinWidth="480"
+        MinHeight="560" MinWidth="480"
         WindowStartupLocation="CenterOwner"
         Background="{DynamicResource Bg}" Foreground="{DynamicResource Fg}"
         ResizeMode="NoResize">
@@ -38,6 +38,24 @@
         <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" Margin="24,0,0,18" FontSize="12"
                    Text="OneDrive, Google Drive, and Nextcloud become children of a Cloud item. The two options are independent."/>
 
+        <TextBlock Text="Filesystem visibility" FontSize="16" FontWeight="SemiBold" Margin="0,8,0,10"/>
+        <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" Margin="0,0,0,12"
+                   Text="These options only change what Explorer Workbench shows and indexes. Windows settings and files are not modified."/>
+        <CheckBox x:Name="ShowHidden" Margin="0,0,0,6"
+                  Content="Show hidden files"/>
+        <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" Margin="24,0,0,14" FontSize="12"
+                   Text="Items marked Hidden by Windows. Default matches the current Explorer Workbench listing."/>
+        <CheckBox x:Name="ShowProtected" Margin="0,0,0,6"
+                  Content="Show protected system locations"/>
+        <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" Margin="24,0,0,18" FontSize="12"
+                   Text="System Volume Information, Recycle Bin, Recovery, and similar locations. When a folder cannot be read, its size is shown as access denied — never as 0 bytes. Administrator rights are detected but never requested automatically."/>
+
+        <TextBlock Text="File operations queue" FontSize="16" FontWeight="SemiBold" Margin="0,8,0,10"/>
+        <CheckBox x:Name="AutoClearQueue" Margin="0,0,0,6"
+                  Content="Auto clear queue when done"/>
+        <TextBlock TextWrapping="Wrap" Foreground="{DynamicResource FgMuted}" Margin="24,0,0,18" FontSize="12"
+                   Text="Finished copy, move, and delete steps are removed automatically. Failed items stay until you dismiss them."/>
+
         <TextBlock Text="Indexing" FontSize="16" FontWeight="SemiBold" Margin="0,8,0,10"/>
         <CheckBox x:Name="IndexArchives" Margin="0,0,0,6"
                   Content="Include archive contents in the index"/>

src/Explorer.App/SettingsWindow.xaml.cs

@@ -20,6 +20,9 @@ public partial class SettingsWindow : Window
         GroupNetwork.IsChecked = prefs.GroupNetworkPlaces;
         GroupCloud.IsChecked = prefs.GroupCloudPlaces;
         IndexArchives.IsChecked = prefs.IndexArchiveContents;
+        ShowHidden.IsChecked = prefs.ShowHiddenFiles;
+        ShowProtected.IsChecked = prefs.ShowProtectedSystemLocations;
+        AutoClearQueue.IsChecked = prefs.AutoClearQueueWhenDone;
     }
 
     private void OnThemeChanged(object sender, RoutedEventArgs e)
@@ -34,11 +37,16 @@ public partial class SettingsWindow : Window
 
     private async void OnOk(object sender, RoutedEventArgs e)
     {
-        var prefs = new UiPreferences(
+        var prefs = _vm.CurrentPreferences() with
-            ThemeLight.IsChecked == true ? "Light" : "Dark",
+        {
-            GroupNetwork.IsChecked == true,
+            Theme = ThemeLight.IsChecked == true ? "Light" : "Dark",
-            GroupCloud.IsChecked == true,
+            GroupNetworkPlaces = GroupNetwork.IsChecked == true,
-            IndexArchives.IsChecked == true);
+            GroupCloudPlaces = GroupCloud.IsChecked == true,
+            IndexArchiveContents = IndexArchives.IsChecked == true,
+            ShowHiddenFiles = ShowHidden.IsChecked == true,
+            ShowProtectedSystemLocations = ShowProtected.IsChecked == true,
+            AutoClearQueueWhenDone = AutoClearQueue.IsChecked == true
+        };
         await _vm.ApplyPreferencesAsync(prefs).ConfigureAwait(true);
         DialogResult = true;
         Close();

src/Explorer.Application/BrowseService.cs

@@ -12,6 +12,8 @@ public sealed class BrowseService
     private readonly StorageProviderRegistry _providers;
     private readonly CloudPlaceStore _cloudPlaces;
     private readonly UiPreferencesStore _preferences;
+    private readonly IElevatedScanService? _elevation;
+    private readonly IRecycleBinCatalog? _recycle;
 
     public BrowseService(
         IFileSystemEnumerator enumerator,
@@ -20,7 +22,9 @@ public sealed class BrowseService
         SourceManager sources,
         StorageProviderRegistry providers,
         CloudPlaceStore cloudPlaces,
-        UiPreferencesStore preferences)
+        UiPreferencesStore preferences,
+        IElevatedScanService? elevation = null,
+        IRecycleBinCatalog? recycle = null)
     {
         _enumerator = enumerator;
         _volumes = volumes;
@@ -29,6 +33,8 @@ public sealed class BrowseService
         _providers = providers;
         _cloudPlaces = cloudPlaces;
         _preferences = preferences;
+        _elevation = elevation;
+        _recycle = recycle;
     }
 
     public async Task<FolderListing> ListThisPcAsync(CancellationToken cancellationToken = default)
@@ -50,12 +56,15 @@ public sealed class BrowseService
             .Select(place =>
             {
                 var exists = Directory.Exists(place.Path);
+                var space = exists ? _volumes.GetSpace(place.Path) : default;
                 return new FileSystemItem
                 {
                     FullPath = place.Path,
                     Name = exists ? place.DisplayName : $"{place.DisplayName}  (Offline)",
                     IsDirectory = true,
-                    Attributes = AttributeFlags.Directory
+                    Attributes = AttributeFlags.Directory,
+                    FreeSpaceBytes = space.FreeBytes,
+                    CapacityBytes = space.CapacityBytes
                 };
             })
             .ToList();
@@ -70,7 +79,7 @@ public sealed class BrowseService
         var sources = await _sources.RefreshOnlineStateAsync(cancellationToken).ConfigureAwait(false);
         var items = new List<FileSystemItem>();
         foreach (var source in sources.Where(include)
-                     .OrderBy(s => s.Kind)
+                     .OrderBy(s => PathRules.DriveLetterSortKey(s.LastRootPath))
                      .ThenBy(s => s.DisplayName, StringComparer.CurrentCultureIgnoreCase))
         {
             IndexEntry? root = null;
@@ -79,6 +88,9 @@ public sealed class BrowseService
                 root = await _store.Entries.GetRootAsync(source.Id, cancellationToken).ConfigureAwait(false);
             }
 
+            var space = source.LastRootPath is null
+                ? default
+                : _volumes.GetSpace(source.LastRootPath);
             items.Add(new FileSystemItem
             {
                 FullPath = source.LastRootPath ?? source.DisplayName,
@@ -87,7 +99,9 @@ public sealed class BrowseService
                     : source.DisplayName,
                 IsDirectory = true,
                 SizeBytes = root?.AggregateSize ?? 0,
-                Attributes = AttributeFlags.Directory
+                Attributes = AttributeFlags.Directory,
+                FreeSpaceBytes = space.FreeBytes,
+                CapacityBytes = space.CapacityBytes ?? source.CapacityBytes
             });
         }
 
@@ -106,6 +120,11 @@ public sealed class BrowseService
             }
         }
 
+        if (IsRecycleBinPath(path))
+        {
+            return ListRecycleBin(path);
+        }
+
         var reachable = _volumes.IsPathReachable(path);
 
         if (reachable)
@@ -117,7 +136,7 @@ public sealed class BrowseService
                 listing = await OverlayFolderSizesAsync(source, path, listing, cancellationToken).ConfigureAwait(false);
             }
 
-            return new FolderListing { Path = path, IsOffline = false, Items = listing, Error = error };
+            return FinishListing(path, AttachVolumeSpace(listing), isOffline: false, error);
         }
 
         if (source is { IsIndexed: true })
@@ -151,7 +170,7 @@ public sealed class BrowseService
                         : null
                 })
                 .ToList();
-            return new FolderListing { Path = path, IsOffline = true, Items = items };
+            return FinishListing(path, AttachVolumeSpace(items), isOffline: true, error: null);
         }
 
         return new FolderListing { Path = path, IsOffline = true, Error = "Path not found" };
@@ -204,7 +223,7 @@ public sealed class BrowseService
         var hint = isArchiveFile && items.Count == 0
             ? "Archive contents appear after the next scan."
             : null;
-        return new FolderListing { Path = path, IsOffline = false, Items = items, Error = hint };
+        return new FolderListing { Path = path, IsOffline = false, Items = AttachVolumeSpace(items), Error = hint };
     }
 
     private async Task<bool> IsUnderArchiveAsync(long sourceId, string pathRel, CancellationToken cancellationToken)
@@ -262,8 +281,147 @@ public sealed class BrowseService
                 FileId = i.FileId,
                 ReparseTag = i.ReparseTag,
                 AllocatedSizeBytes = i.AllocatedSizeBytes ?? e.AllocatedSizeBytes,
-                Cloud = i.Cloud
+                Cloud = i.Cloud,
+                Location = i.Location,
+                SizeKnowledge = i.SizeKnowledge,
+                DisplayName = i.DisplayName,
+                FreeSpaceBytes = i.FreeSpaceBytes,
+                CapacityBytes = i.CapacityBytes
             };
         }).ToList();
     }
+
+    private FolderListing FinishListing(string path, IReadOnlyList<FileSystemItem> items, bool isOffline, string? error)
+    {
+        var prefs = _preferences.Load();
+        var annotated = items.Select(i => Annotate(i, sizeFromIndex: i.SizeBytes > 0, prefs)).ToList();
+        var visible = annotated.Where(i => LocationVisibility.ShouldShow(i.Location, prefs)).ToList();
+        if (visible.Any(i => i.Location.AccessDenied) && _elevation is { IsElevated: false })
+        {
+            error = string.IsNullOrEmpty(error)
+                ? _elevation.ProtectedContentHint
+                : error + " " + _elevation.ProtectedContentHint;
+        }
+
+        return new FolderListing { Path = path, IsOffline = isOffline, Items = visible, Error = error };
+    }
+
+    private FileSystemItem Annotate(FileSystemItem item, bool sizeFromIndex, UiPreferences preferences)
+    {
+        var looksRestricted = LocationClassifier.Classify(item.FullPath, item.Name, item.Attributes, item.IsDirectory);
+        var accessDenied = preferences.ShowProtectedSystemLocations
+            && item.IsDirectory
+            && (looksRestricted.IsProtected || looksRestricted.IsRecycleBin)
+            && IsAccessDenied(item.FullPath);
+        var location = LocationClassifier.Classify(item.FullPath, item.Name, item.Attributes, item.IsDirectory, accessDenied);
+        var knowledge = LocationVisibility.ResolveSizeKnowledge(location, item.IsDirectory, item.SizeBytes, sizeFromIndex);
+        return new FileSystemItem
+        {
+            FullPath = item.FullPath,
+            Name = item.Name,
+            IsDirectory = item.IsDirectory,
+            SizeBytes = item.SizeBytes,
+            CreatedUtc = item.CreatedUtc,
+            ModifiedUtc = item.ModifiedUtc,
+            Attributes = item.Attributes,
+            FileId = item.FileId,
+            ReparseTag = item.ReparseTag,
+            AllocatedSizeBytes = item.AllocatedSizeBytes,
+            Cloud = item.Cloud,
+            Location = location,
+            SizeKnowledge = knowledge,
+            DisplayName = location.IsRecycleBin ? "Recycle Bin" : item.DisplayName,
+            FreeSpaceBytes = item.FreeSpaceBytes,
+            CapacityBytes = item.CapacityBytes
+        };
+    }
+
+    private IReadOnlyList<FileSystemItem> AttachVolumeSpace(IReadOnlyList<FileSystemItem> items)
+    {
+        var cache = new Dictionary<string, VolumeSpace>(StringComparer.OrdinalIgnoreCase);
+        return items.Select(item =>
+        {
+            var key = SpaceKey(item.FullPath);
+            if (!cache.TryGetValue(key, out var space))
+            {
+                space = _volumes.GetSpace(item.FullPath);
+                cache[key] = space;
+            }
+
+            if (space.FreeBytes is null && space.CapacityBytes is null)
+            {
+                return item;
+            }
+
+            return new FileSystemItem
+            {
+                FullPath = item.FullPath,
+                Name = item.Name,
+                IsDirectory = item.IsDirectory,
+                SizeBytes = item.SizeBytes,
+                CreatedUtc = item.CreatedUtc,
+                ModifiedUtc = item.ModifiedUtc,
+                Attributes = item.Attributes,
+                FileId = item.FileId,
+                ReparseTag = item.ReparseTag,
+                AllocatedSizeBytes = item.AllocatedSizeBytes,
+                Cloud = item.Cloud,
+                Location = item.Location,
+                SizeKnowledge = item.SizeKnowledge,
+                DisplayName = item.DisplayName,
+                FreeSpaceBytes = space.FreeBytes,
+                CapacityBytes = space.CapacityBytes
+            };
+        }).ToList();
+    }
+
+    private static string SpaceKey(string path)
+    {
+        if (PathRules.IsUnc(path))
+        {
+            return PathRules.CanonicalUncRoot(path);
+        }
+
+        var root = Path.GetPathRoot(path);
+        return string.IsNullOrWhiteSpace(root) ? path : root;
+    }
+
+    private FolderListing ListRecycleBin(string path)
+    {
+        var summary = _recycle?.TrySummarize(path);
+        var hint = summary is null
+            ? "Recycle Bin contents are managed by Windows."
+            : $"{summary.ItemCount} deleted items · {summary.UsedBytes} bytes used";
+        if (_elevation is { IsElevated: false })
+        {
+            hint += " " + _elevation.ProtectedContentHint;
+        }
+
+        return new FolderListing { Path = path, IsOffline = false, Items = [], Error = hint };
+    }
+
+    private static bool IsRecycleBinPath(string path)
+        => LocationClassifier.IsRecycleBinName(PathRules.GetFileName(path));
+
+    private static bool IsAccessDenied(string path)
+    {
+        try
+        {
+            using var enumerator = Directory.EnumerateFileSystemEntries(path).GetEnumerator();
+            enumerator.MoveNext();
+            return false;
+        }
+        catch (UnauthorizedAccessException)
+        {
+            return true;
+        }
+        catch (System.Security.SecurityException)
+        {
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
 }

src/Explorer.Application/IElevatedScanService.cs

@@ -0,0 +1,8 @@
+namespace Explorer.Application;
+
+public interface IElevatedScanService
+{
+    bool IsElevated { get; }
+    bool CanRequestElevation { get; }
+    string ProtectedContentHint { get; }
+}

src/Explorer.Application/IRecycleBinCatalog.cs

@@ -0,0 +1,13 @@
+namespace Explorer.Application;
+
+public sealed record RecycleBinSummary(int ItemCount, long UsedBytes);
+
+public interface IRecycleBinCatalog
+{
+    RecycleBinSummary? TrySummarize(string recycleBinPath);
+}
+
+public sealed class RecycleBinCatalog : IRecycleBinCatalog
+{
+    public RecycleBinSummary? TrySummarize(string recycleBinPath) => null;
+}

src/Explorer.Application/LocationVisibility.cs

@@ -0,0 +1,46 @@
+using Explorer.Domain;
+
+namespace Explorer.Application;
+
+public static class LocationVisibility
+{
+    public static bool ShouldShow(LocationInfo info, UiPreferences preferences)
+    {
+        if (info.IsProtected)
+        {
+            return preferences.ShowProtectedSystemLocations;
+        }
+
+        if (info.IsHidden)
+        {
+            return preferences.ShowHiddenFiles;
+        }
+
+        return true;
+    }
+
+    public static SizeKnowledge ResolveSizeKnowledge(LocationInfo info, bool isDirectory, long sizeBytes, bool sizeFromIndex)
+    {
+        if (info.AccessDenied && sizeBytes <= 0)
+        {
+            return SizeKnowledge.Unknown;
+        }
+
+        if (info.AccessDenied && sizeBytes > 0)
+        {
+            return SizeKnowledge.Partial;
+        }
+
+        if (info.IsProtected && isDirectory && sizeBytes <= 0)
+        {
+            return SizeKnowledge.Unknown;
+        }
+
+        if (isDirectory && !sizeFromIndex && sizeBytes <= 0)
+        {
+            return SizeKnowledge.Unknown;
+        }
+
+        return SizeKnowledge.Calculated;
+    }
+}

src/Explorer.Application/SourceManager.cs

@@ -56,7 +56,7 @@ public sealed class SourceManager
                 source.VolumeSerial = fp.VolumeSerial ?? source.VolumeSerial;
                 source.Kind = fp.Kind;
                 source.LastSeenUtc = _clock.UtcNow;
-                source.Status = source.Status == SourceStatus.Scanning ? SourceStatus.Scanning : SourceStatus.Online;
+                source.Status = await ResolveReachableStatusAsync(source, cancellationToken).ConfigureAwait(false);
                 source.LastError = null;
                 await _store.Sources.UpsertAsync(source, cancellationToken).ConfigureAwait(false);
                 if (source.IsIndexed)
@@ -251,7 +251,7 @@ public sealed class SourceManager
         {
             existing.LastSeenUtc = _clock.UtcNow;
             existing.Status = _volumes.IsPathReachable(existing.LastRootPath ?? path)
-                ? (existing.Status == SourceStatus.Scanning ? SourceStatus.Scanning : SourceStatus.Online)
+                ? await ResolveReachableStatusAsync(existing, cancellationToken).ConfigureAwait(false)
                 : SourceStatus.Offline;
             await _store.Sources.UpsertAsync(existing, cancellationToken).ConfigureAwait(false);
             return existing;
@@ -346,6 +346,20 @@ public sealed class SourceManager
         }
     }
 
+    public Task<Source?> GetAsync(long id, CancellationToken cancellationToken = default)
+        => _store.Sources.GetAsync(id, cancellationToken);
+
+    private async Task<SourceStatus> ResolveReachableStatusAsync(Source source, CancellationToken cancellationToken)
+    {
+        if (source.Status == SourceStatus.Scanning
+            && await _store.ScanJobs.HasActiveAsync(source.Id, cancellationToken).ConfigureAwait(false))
+        {
+            return SourceStatus.Scanning;
+        }
+
+        return SourceStatus.Online;
+    }
+
     private IReadOnlyList<string> LoadRecents()
     {
         var file = Path.Combine(_env.DataDirectory, "recents.txt");

src/Explorer.Application/UiPreferencesStore.cs

@@ -6,9 +6,18 @@ public sealed record UiPreferences(
     string Theme,
     bool GroupNetworkPlaces,
     bool GroupCloudPlaces,
-    bool IndexArchiveContents = false)
+    bool IndexArchiveContents = false,
+    bool ShowHiddenFiles = true,
+    bool ShowProtectedSystemLocations = false,
+    bool AutoClearQueueWhenDone = false,
+    double? WindowWidth = null,
+    double? WindowHeight = null,
+    double? WindowLeft = null,
+    double? WindowTop = null,
+    bool WindowMaximized = false,
+    double? TreeWidth = null)
 {
-    public static UiPreferences Default { get; } = new("Dark", false, false, false);
+    public static UiPreferences Default { get; } = new("Dark", false, false, false, true, false);
 }
 
 public sealed class UiPreferencesStore
@@ -47,7 +56,11 @@ public sealed class UiPreferencesStore
                 "theme=" + NormalizeTheme(preferences.Theme),
                 "group-network=" + (preferences.GroupNetworkPlaces ? "true" : "false"),
                 "group-cloud=" + (preferences.GroupCloudPlaces ? "true" : "false"),
-                "index-archives=" + (preferences.IndexArchiveContents ? "true" : "false")
+                "index-archives=" + (preferences.IndexArchiveContents ? "true" : "false"),
+                "show-hidden=" + (preferences.ShowHiddenFiles ? "true" : "false"),
+                "show-protected=" + (preferences.ShowProtectedSystemLocations ? "true" : "false"),
+                "auto-clear-queue=" + (preferences.AutoClearQueueWhenDone ? "true" : "false"),
+                .. LayoutLines(preferences)
             ]);
         }
         catch
@@ -62,6 +75,15 @@ public sealed class UiPreferencesStore
         var groupNetwork = false;
         var groupCloud = false;
         var indexArchives = false;
+        var showHidden = true;
+        var showProtected = false;
+        var autoClearQueue = false;
+        double? windowWidth = null;
+        double? windowHeight = null;
+        double? windowLeft = null;
+        double? windowTop = null;
+        var windowMaximized = false;
+        double? treeWidth = null;
         foreach (var raw in lines)
         {
             var line = raw.Trim();
@@ -94,11 +116,90 @@ public sealed class UiPreferencesStore
             {
                 indexArchives = IsTrue(value);
             }
+            else if (key.Equals("show-hidden", StringComparison.OrdinalIgnoreCase))
+            {
+                showHidden = IsTrue(value);
+            }
+            else if (key.Equals("show-protected", StringComparison.OrdinalIgnoreCase))
+            {
+                showProtected = IsTrue(value);
+            }
+            else if (key.Equals("auto-clear-queue", StringComparison.OrdinalIgnoreCase))
+            {
+                autoClearQueue = IsTrue(value);
+            }
+            else if (key.Equals("window-width", StringComparison.OrdinalIgnoreCase))
+            {
+                windowWidth = ParseDouble(value);
+            }
+            else if (key.Equals("window-height", StringComparison.OrdinalIgnoreCase))
+            {
+                windowHeight = ParseDouble(value);
+            }
+            else if (key.Equals("window-left", StringComparison.OrdinalIgnoreCase))
+            {
+                windowLeft = ParseDouble(value);
+            }
+            else if (key.Equals("window-top", StringComparison.OrdinalIgnoreCase))
+            {
+                windowTop = ParseDouble(value);
+            }
+            else if (key.Equals("window-maximized", StringComparison.OrdinalIgnoreCase))
+            {
+                windowMaximized = IsTrue(value);
+            }
+            else if (key.Equals("tree-width", StringComparison.OrdinalIgnoreCase))
+            {
+                treeWidth = ParseDouble(value);
+            }
         }
 
-        return new UiPreferences(theme, groupNetwork, groupCloud, indexArchives);
+        return new UiPreferences(
+            theme, groupNetwork, groupCloud, indexArchives, showHidden, showProtected, autoClearQueue,
+            windowWidth, windowHeight, windowLeft, windowTop, windowMaximized, treeWidth);
     }
 
+    private static IEnumerable<string> LayoutLines(UiPreferences preferences)
+    {
+        if (preferences.WindowWidth is { } width)
+        {
+            yield return "window-width=" + Format(width);
+        }
+
+        if (preferences.WindowHeight is { } height)
+        {
+            yield return "window-height=" + Format(height);
+        }
+
+        if (preferences.WindowLeft is { } left)
+        {
+            yield return "window-left=" + Format(left);
+        }
+
+        if (preferences.WindowTop is { } top)
+        {
+            yield return "window-top=" + Format(top);
+        }
+
+        if (preferences.WindowMaximized)
+        {
+            yield return "window-maximized=true";
+        }
+
+        if (preferences.TreeWidth is { } tree)
+        {
+            yield return "tree-width=" + Format(tree);
+        }
+    }
+
+    private static string Format(double value) => value.ToString("0.##", System.Globalization.CultureInfo.InvariantCulture);
+
+    private static double? ParseDouble(string value)
+        => double.TryParse(value, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out var parsed)
+            && double.IsFinite(parsed)
+            ? parsed
+            : null;
+
     public static string NormalizeTheme(string? theme)
         => theme is not null && theme.Equals("Light", StringComparison.OrdinalIgnoreCase) ? "Light" : "Dark";
 

src/Explorer.Domain/Abstractions/IIndexStore.cs

@@ -68,6 +68,7 @@ public interface IScanJobStore
     Task<long> InsertAsync(ScanJob job, CancellationToken cancellationToken = default);
     Task UpdateAsync(ScanJob job, CancellationToken cancellationToken = default);
     Task InterruptRunningAsync(CancellationToken cancellationToken = default);
+    Task<bool> HasActiveAsync(long sourceId, CancellationToken cancellationToken = default);
     Task AddErrorAsync(ScanError error, CancellationToken cancellationToken = default);
     Task<ScanJob?> GetAsync(long id, CancellationToken cancellationToken = default);
     Task<IReadOnlyList<ScanJob>> GetRecentAsync(int take, CancellationToken cancellationToken = default);

src/Explorer.Domain/Abstractions/IOsClipboard.cs

@@ -3,5 +3,6 @@ namespace Explorer.Domain.Abstractions;
 public interface IOsClipboard
 {
     void SetFiles(IReadOnlyList<string> paths, bool cut);
+    void SetText(string text);
     bool TryGetFiles(out IReadOnlyList<string> paths, out bool cut);
 }

src/Explorer.Domain/Abstractions/Platform.cs

@@ -21,6 +21,7 @@ public interface IVolumeService
 {
     IReadOnlyList<VolumeFingerprint> EnumerateOnlineVolumes();
     VolumeFingerprint? Probe(string path);
+    VolumeSpace GetSpace(string path);
     bool IsPathReachable(string path);
 }
 
@@ -87,8 +88,8 @@ public interface IShellFileOperations
     bool DeleteToRecycleBin(IReadOnlyList<string> paths, out string? error);
     bool Delete(IReadOnlyList<string> paths, bool recycle, out string? error);
     bool CreateShortcut(string targetPath, string shortcutPath, out string? error);
-    bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error);
+    bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null);
-    bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error);
+    bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null);
 }
 
 public interface IIconService

src/Explorer.Domain/DefaultExcludes.cs

@@ -5,8 +5,6 @@ public static class DefaultExcludes
     public static IReadOnlyList<ExcludeRule> Create() =>
     [
         new() { Kind = ExcludeKind.PathPrefix, Pattern = @"C:\Windows", Scope = "global" },
-        new() { Kind = ExcludeKind.PathPrefix, Pattern = @"C:\System Volume Information", Scope = "global" },
-        new() { Kind = ExcludeKind.Glob, Pattern = "$Recycle.Bin", Scope = "global" },
         new() { Kind = ExcludeKind.PathPrefix, Pattern = @"C:\ProgramData\Microsoft", Scope = "global" },
         new() { Kind = ExcludeKind.Glob, Pattern = "node_modules", Scope = "global" },
         new() { Kind = ExcludeKind.Glob, Pattern = ".git", Scope = "global" },

src/Explorer.Domain/Entities.cs

@@ -31,11 +31,14 @@ public sealed class VolumeFingerprint
     public string? Filesystem { get; init; }
     public string? Label { get; init; }
     public long? CapacityBytes { get; init; }
+    public long? FreeBytes { get; init; }
     public string? DeviceInstanceId { get; init; }
     public required string RootPath { get; init; }
     public string? DisplayName { get; init; }
 }
 
+public readonly record struct VolumeSpace(long? CapacityBytes, long? FreeBytes);
+
 public sealed class IndexEntry
 {
     public long Id { get; set; }
@@ -113,7 +116,11 @@ public sealed class TransferJob
     public TransferStatus Status { get; set; }
     public long? BytesTotal { get; set; }
     public long BytesDone { get; set; }
+    public long FilesDone { get; set; }
+    public long FilesTotal { get; set; }
+    public string? CurrentPath { get; set; }
     public DateTimeOffset CreatedUtc { get; set; }
+    public DateTimeOffset? StartedUtc { get; set; }
     public string? Error { get; set; }
     public IReadOnlyList<string> AdditionalSources { get; init; } = [];
 }
@@ -134,6 +141,8 @@ public sealed class FileSystemItem
     public LocationInfo Location { get; init; } = LocationInfo.None;
     public SizeKnowledge SizeKnowledge { get; init; } = SizeKnowledge.Calculated;
     public string? DisplayName { get; init; }
+    public long? FreeSpaceBytes { get; init; }
+    public long? CapacityBytes { get; init; }
     public bool IsReparsePoint => (Attributes & AttributeFlags.ReparsePoint) != 0;
 }
 

src/Explorer.Domain/Enums.cs

@@ -88,6 +88,7 @@ public enum TransferStatus
 {
     Queued,
     Running,
+    Paused,
     Cancelling,
     Cancelled,
     Failed,

src/Explorer.FileOperations/TransferQueue.cs

@@ -1,4 +1,3 @@
-using System.Threading.Channels;
 using Explorer.Domain;
 using Explorer.Domain.Abstractions;
 using Microsoft.Extensions.Hosting;
@@ -12,9 +11,15 @@ public sealed class TransferQueue : BackgroundService
     private readonly IFileSystemEnumerator _enumerator;
     private readonly IIndexStore _store;
     private readonly ILogger<TransferQueue> _logger;
-    private readonly Channel<Work> _channel = Channel.CreateUnbounded<Work>();
     private readonly List<TransferJob> _jobs = [];
     private readonly object _gate = new();
+    private readonly SemaphoreSlim _signal = new(0);
+    private readonly Func<bool> _pauseRequested;
+    private volatile bool _queuePaused;
+    private volatile bool _haltPause;
+    private long? _holdJobId;
+    private CancellationTokenSource? _runningCts;
+    private DateTime _lastChangedUtc = DateTime.MinValue;
 
     public event EventHandler? Changed;
     public event EventHandler<TransferJob>? JobFinished;
@@ -29,8 +34,11 @@ public sealed class TransferQueue : BackgroundService
         _enumerator = enumerator;
         _store = store;
         _logger = logger;
+        _pauseRequested = () => _haltPause;
     }
 
+    public bool IsPaused => _queuePaused;
+
     public IReadOnlyList<TransferJob> Snapshot()
     {
         lock (_gate)
@@ -84,19 +92,106 @@ public sealed class TransferQueue : BackgroundService
         }, cancellationToken).ConfigureAwait(false);
     }
 
-    public void Cancel(long jobId)
+    public void PauseAll()
+    {
+        _queuePaused = true;
+        _haltPause = true;
+        RaiseChanged();
+    }
+
+    public void ResumeAll()
+    {
+        _queuePaused = false;
+        _haltPause = false;
+        _holdJobId = null;
+        lock (_gate)
+        {
+            foreach (var job in _jobs.Where(j => j.Status == TransferStatus.Paused
+                                                 && (j.StartedUtc is not null || j.CurrentPath is not null)))
+            {
+                job.Status = TransferStatus.Queued;
+            }
+        }
+
+        Pulse();
+        RaiseChanged();
+    }
+
+    public void Pause(long jobId)
     {
         lock (_gate)
         {
-            var job = _jobs.FirstOrDefault(j => j.Id == jobId);
+            var job = Find(jobId);
             if (job is null)
             {
                 return;
             }
 
-            if (job.Status is TransferStatus.Queued or TransferStatus.Running)
+            if (job.Status == TransferStatus.Queued)
+            {
+                job.Status = TransferStatus.Paused;
+            }
+            else if (job.Status == TransferStatus.Running)
+            {
+                _haltPause = true;
+                _holdJobId = jobId;
+            }
+        }
+
+        RaiseChanged();
+    }
+
+    public void Resume(long jobId)
+    {
+        lock (_gate)
+        {
+            var job = Find(jobId);
+            if (job is null || job.Status != TransferStatus.Paused)
+            {
+                return;
+            }
+
+            job.Status = TransferStatus.Queued;
+        }
+
+        _queuePaused = false;
+        _haltPause = false;
+        if (_holdJobId == jobId)
+        {
+            _holdJobId = null;
+        }
+
+        Pulse();
+        RaiseChanged();
+    }
+
+    public void Cancel(long jobId)
+    {
+        CancellationTokenSource? running = null;
+        lock (_gate)
+        {
+            var job = Find(jobId);
+            if (job is null)
+            {
+                return;
+            }
+
+            if (job.Status is TransferStatus.Queued or TransferStatus.Paused)
+            {
+                job.Status = TransferStatus.Cancelled;
+                _jobs.Remove(job);
+                if (_holdJobId == jobId)
+                {
+                    _holdJobId = null;
+                }
+
+                Pulse();
+            }
+            else if (job.Status is TransferStatus.Running or TransferStatus.Cancelling)
             {
                 job.Status = TransferStatus.Cancelling;
+                _haltPause = false;
+                running = _runningCts;
             }
             else
             {
@@ -104,17 +199,67 @@ public sealed class TransferQueue : BackgroundService
             }
         }
 
-        Changed?.Invoke(this, EventArgs.Empty);
+        running?.Cancel();
+        RaiseChanged();
     }
 
     public void Dismiss(long jobId)
     {
         lock (_gate)
         {
-            _jobs.RemoveAll(j => j.Id == jobId);
+            _jobs.RemoveAll(j => j.Id == jobId && j.Status is TransferStatus.Done or TransferStatus.Cancelled or TransferStatus.Failed);
         }
 
-        Changed?.Invoke(this, EventArgs.Empty);
+        RaiseChanged();
+    }
+
+    public void ClearFinished()
+    {
+        var removed = false;
+        lock (_gate)
+        {
+            removed = _jobs.RemoveAll(j => j.Status is TransferStatus.Done or TransferStatus.Cancelled) > 0;
+        }
+
+        if (removed)
+        {
+            RaiseChanged();
+        }
+    }
+
+    public bool MoveUp(long jobId) => Move(jobId, -1);
+
+    public bool MoveDown(long jobId) => Move(jobId, 1);
+
+    public bool Move(long jobId, int delta)
+    {
+        if (delta == 0)
+        {
+            return false;
+        }
+
+        lock (_gate)
+        {
+            var index = _jobs.FindIndex(j => j.Id == jobId);
+            var target = index + delta;
+            if (index < 0 || target < 0 || target >= _jobs.Count)
+            {
+                return false;
+            }
+
+            var job = _jobs[index];
+            if (job.Status is TransferStatus.Running or TransferStatus.Cancelling)
+            {
+                return false;
+            }
+
+            _jobs.RemoveAt(index);
+            _jobs.Insert(target, job);
+        }
+
+        Pulse();
+        RaiseChanged();
+        return true;
     }
 
     private async Task EnqueueAsync(TransferJob job, CancellationToken cancellationToken)
@@ -122,42 +267,86 @@ public sealed class TransferQueue : BackgroundService
         job.Id = await _store.Transfers.InsertAsync(job, cancellationToken).ConfigureAwait(false);
         lock (_gate)
         {
-            _jobs.Insert(0, job);
+            _jobs.Add(job);
         }
 
-        _channel.Writer.TryWrite(new Work(job, new CancellationTokenSource()));
+        Pulse();
-        Changed?.Invoke(this, EventArgs.Empty);
+        RaiseChanged();
     }
 
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)
     {
-        await foreach (var work in _channel.Reader.ReadAllAsync(stoppingToken).ConfigureAwait(false))
+        while (!stoppingToken.IsCancellationRequested)
         {
-            var job = work.Job;
+            TransferJob? job;
-            if (job.Status == TransferStatus.Cancelling)
+            lock (_gate)
             {
-                job.Status = TransferStatus.Cancelled;
+                job = CanStartNext() ? NextRunnable() : null;
-                await Persist(job).ConfigureAwait(false);
+            }
+
+            if (job is null)
+            {
+                try
+                {
+                    await _signal.WaitAsync(stoppingToken).ConfigureAwait(false);
+                }
+                catch (OperationCanceledException)
+                {
+                    break;
+                }
+
                 continue;
             }
 
+            await RunAsync(job, stoppingToken).ConfigureAwait(false);
+        }
+    }
+
+    private bool CanStartNext()
+    {
+        if (_queuePaused)
+        {
+            return false;
+        }
+
+        return _holdJobId is not { } id
+               || !_jobs.Any(j => j.Id == id && j.Status is TransferStatus.Paused or TransferStatus.Running or TransferStatus.Cancelling);
+    }
+
+    private TransferJob? NextRunnable()
+        => _jobs.FirstOrDefault(j => j.Status == TransferStatus.Queued);
+
+    private async Task RunAsync(TransferJob job, CancellationToken stoppingToken)
+    {
+        using var linked = CancellationTokenSource.CreateLinkedTokenSource(stoppingToken);
+        _runningCts = linked;
+        _haltPause = false;
         job.Status = TransferStatus.Running;
-            Changed?.Invoke(this, EventArgs.Empty);
+        job.StartedUtc ??= DateTimeOffset.UtcNow;
+        job.Error = null;
+        RaiseChanged();
         try
         {
             switch (job.Op)
             {
                 case TransferOp.Copy:
-                        await CopyOrMove(job, move: false, stoppingToken).ConfigureAwait(false);
+                    await CopyOrMove(job, move: false, linked.Token).ConfigureAwait(false);
                     break;
                 case TransferOp.Move:
-                        await CopyOrMove(job, move: true, stoppingToken).ConfigureAwait(false);
+                    await CopyOrMove(job, move: true, linked.Token).ConfigureAwait(false);
                     break;
                 case TransferOp.Delete:
                     Delete(job);
                     break;
             }
 
+            if (job.Status == TransferStatus.Paused)
+            {
+                await Persist(job).ConfigureAwait(false);
+                RaiseChanged();
+                return;
+            }
+
             if (job.Status == TransferStatus.Cancelling)
             {
                 job.Status = TransferStatus.Cancelled;
@@ -169,28 +358,36 @@ public sealed class TransferQueue : BackgroundService
             else if (job.Status != TransferStatus.Failed)
             {
                 job.Status = TransferStatus.Done;
+                job.CurrentPath = null;
             }
         }
+        catch (OperationCanceledException)
+        {
+            job.Status = TransferStatus.Cancelled;
+        }
         catch (Exception ex)
         {
             _logger.LogWarning(ex, "Transfer failed {Op} {Src}", job.Op, job.SourcePath);
             job.Status = TransferStatus.Failed;
             job.Error = ex.Message;
         }
+        finally
+        {
+            if (ReferenceEquals(_runningCts, linked))
+            {
+                _runningCts = null;
+            }
+        }
+
+        if (job.Status == TransferStatus.Paused)
+        {
+            return;
+        }
 
         await Persist(job).ConfigureAwait(false);
-            if (job.Status is TransferStatus.Done or TransferStatus.Cancelled)
+        RaiseChanged();
-            {
-                lock (_gate)
-                {
-                    _jobs.Remove(job);
-                }
-            }
-
-            Changed?.Invoke(this, EventArgs.Empty);
         JobFinished?.Invoke(this, job);
     }
-    }
 
     private async Task CopyOrMove(TransferJob job, bool move, CancellationToken stoppingToken)
     {
@@ -207,7 +404,7 @@ public sealed class TransferQueue : BackgroundService
         if (item.IsDirectory)
         {
             await CopyDirectory(src, dst, move, job, stoppingToken).ConfigureAwait(false);
-            if (move && job.Status != TransferStatus.Failed && job.Status != TransferStatus.Cancelling)
+            if (move && job.Status is not TransferStatus.Failed and not TransferStatus.Cancelling and not TransferStatus.Paused)
             {
                 try { Directory.Delete(PathRules.ToExtended(src), recursive: true); } catch { /* remaining files */ }
             }
@@ -215,36 +412,36 @@ public sealed class TransferQueue : BackgroundService
             return;
         }
 
-        job.BytesTotal = item.SizeBytes;
+        job.FilesTotal = Math.Max(job.FilesTotal, 1);
-        var progress = new Progress<long>(b =>
+        job.CurrentPath = src;
+        var resume = File.Exists(PathRules.ToExtended(dst));
+        if (!TransferFile(src, dst, move, resume, job, committed: 0, stoppingToken, out var error))
         {
-            job.BytesDone = b;
+            ApplyHalt(job, src, error);
-            Changed?.Invoke(this, EventArgs.Empty);
+            return;
-        });
-        var ok = move
-            ? _shell.MoveFileWithProgress(src, dst, overwrite: false, progress, stoppingToken, out var error)
-            : _shell.CopyFileWithProgress(src, dst, overwrite: false, progress, stoppingToken, out error);
-        if (!ok)
-        {
-            job.Status = error == "Cancelled" ? TransferStatus.Cancelling : TransferStatus.Failed;
-            job.Error = error;
         }
-        else
+
-        {
         job.BytesDone = job.BytesTotal ?? job.BytesDone;
-        }
+        job.FilesDone = 1;
+        job.CurrentPath = null;
+        await Task.CompletedTask.ConfigureAwait(false);
     }
 
     private async Task CopyDirectory(string src, string dst, bool move, TransferJob job, CancellationToken stoppingToken)
     {
         Directory.CreateDirectory(PathRules.ToExtended(dst));
+        job.FilesDone = 0;
+        job.FilesTotal = 0;
+        job.BytesDone = 0;
+        job.BytesTotal = 0;
         var stack = new Stack<(string From, string To)>();
         stack.Push((src, dst));
         while (stack.Count > 0)
         {
             stoppingToken.ThrowIfCancellationRequested();
-            if (job.Status == TransferStatus.Cancelling)
+            if (job.Status == TransferStatus.Cancelling || _haltPause)
             {
+                ApplyHalt(job, job.CurrentPath, _haltPause ? "Paused" : "Cancelled");
                 return;
             }
 
@@ -263,30 +460,82 @@ public sealed class TransferQueue : BackgroundService
                 {
                     Directory.CreateDirectory(PathRules.ToExtended(childDest));
                     stack.Push((child.FullPath, childDest));
+                    continue;
                 }
-                else
+
-                {
+                job.FilesTotal++;
                 job.BytesTotal = (job.BytesTotal ?? 0) + child.SizeBytes;
-                    var ok = move
+                var destExists = File.Exists(PathRules.ToExtended(childDest));
-                        ? _shell.MoveFileWithProgress(child.FullPath, childDest, false, null, stoppingToken, out var err)
+                var destLen = destExists ? new FileInfo(PathRules.ToExtended(childDest)).Length : 0;
-                        : _shell.CopyFileWithProgress(child.FullPath, childDest, false, null, stoppingToken, out err);
+                if (destExists && destLen == child.SizeBytes)
-                    if (ok)
                 {
                     job.BytesDone += child.SizeBytes;
+                    job.FilesDone++;
+                    RaiseChanged(throttled: true);
+                    continue;
                 }
-                    else if (err != "Cancelled")
+
+                job.CurrentPath = child.FullPath;
+                var committed = job.BytesDone;
+                if (!TransferFile(child.FullPath, childDest, move, destExists, job, committed, stoppingToken, out var err))
                 {
-                        job.Error = err;
+                    ApplyHalt(job, child.FullPath, err);
+                    return;
                 }
 
-                    Changed?.Invoke(this, EventArgs.Empty);
+                job.BytesDone = committed + child.SizeBytes;
-                }
+                job.FilesDone++;
+                RaiseChanged(throttled: true);
             }
         }
 
+        job.CurrentPath = null;
         await Task.CompletedTask.ConfigureAwait(false);
     }
 
+    private bool TransferFile(
+        string src,
+        string dst,
+        bool move,
+        bool resumePartial,
+        TransferJob job,
+        long committed,
+        CancellationToken stoppingToken,
+        out string? error)
+    {
+        var progress = new Progress<long>(b =>
+        {
+            job.BytesDone = committed + b;
+            RaiseChanged(throttled: true);
+        });
+        var ok = move
+            ? _shell.MoveFileWithProgress(src, dst, resumePartial, progress, stoppingToken, out error, _pauseRequested)
+            : _shell.CopyFileWithProgress(src, dst, resumePartial, progress, stoppingToken, out error, _pauseRequested);
+        return ok;
+    }
+
+    private void ApplyHalt(TransferJob job, string? path, string? error)
+    {
+        job.CurrentPath = path;
+        if (job.Status == TransferStatus.Cancelling || error == "Cancelled")
+        {
+            job.Status = TransferStatus.Cancelling;
+            job.Error = error == "Cancelled" ? null : error;
+            return;
+        }
+
+        if (_haltPause || error == "Paused")
+        {
+            job.Status = TransferStatus.Paused;
+            job.Error = null;
+            _haltPause = false;
+            return;
+        }
+
+        job.Status = TransferStatus.Failed;
+        job.Error = error;
+    }
+
     private void Delete(TransferJob job)
     {
         var paths = job.AdditionalSources.Count > 0
@@ -300,7 +549,31 @@ public sealed class TransferQueue : BackgroundService
         }
     }
 
-    private Task Persist(TransferJob job) => _store.Transfers.UpdateAsync(job);
+    private TransferJob? Find(long jobId) => _jobs.FirstOrDefault(j => j.Id == jobId);
 
-    private readonly record struct Work(TransferJob Job, CancellationTokenSource Cts);
+    private void Pulse()
+    {
+        if (_signal.CurrentCount == 0)
+        {
+            _signal.Release();
+        }
+    }
+
+    private void RaiseChanged(bool throttled = false)
+    {
+        if (throttled)
+        {
+            var now = DateTime.UtcNow;
+            if ((now - _lastChangedUtc).TotalMilliseconds < 80)
+            {
+                return;
+            }
+
+            _lastChangedUtc = now;
+        }
+
+        Changed?.Invoke(this, EventArgs.Empty);
+    }
+
+    private Task Persist(TransferJob job) => _store.Transfers.UpdateAsync(job);
 }

src/Explorer.Indexing/FilesystemScanner.cs

@@ -12,19 +12,22 @@ public sealed class FilesystemScanner
     private readonly StorageProviderRegistry _providers;
     private readonly ILogger<FilesystemScanner> _logger;
     private readonly ArchiveContentsIndexer? _archives;
+    private readonly UiPreferencesStore? _preferences;
 
     public FilesystemScanner(
         IIndexStore store,
         IFileSystemEnumerator enumerator,
         StorageProviderRegistry providers,
         ILogger<FilesystemScanner> logger,
-        ArchiveContentsIndexer? archives = null)
+        ArchiveContentsIndexer? archives = null,
+        UiPreferencesStore? preferences = null)
     {
         _store = store;
         _enumerator = enumerator;
         _providers = providers;
         _logger = logger;
         _archives = archives;
+        _preferences = preferences;
     }
 
     public async Task<ScanJob> ScanAsync(
@@ -56,7 +59,8 @@ public sealed class FilesystemScanner
             cancellationToken.ThrowIfCancellationRequested();
 
         var excludes = await _store.Excludes.GetAllAsync(cancellationToken).ConfigureAwait(false);
-        var evaluator = new ExcludeEvaluator(excludes);
+        var prefs = _preferences?.Load() ?? UiPreferences.Default;
+        var evaluator = new ExcludeEvaluator(excludes, skipHidden: !prefs.ShowHiddenFiles, skipSystem: false);
         var root = source.LastRootPath ?? throw new InvalidOperationException("Source has no root path.");
         var startRel = folderPathRel ?? "";
         var startPath = PathRules.Combine(root, startRel);
@@ -128,13 +132,23 @@ public sealed class FilesystemScanner
                             continue;
                         }
 
+                        var location = LocationClassifier.Classify(child.FullPath, child.Name, child.Attributes, child.IsDirectory);
+                        if (!LocationVisibility.ShouldShow(location, prefs))
+                        {
+                            continue;
+                        }
+
                         var rel = PathRules.MakeRelative(root, child.FullPath);
                         var entry = CreateEntry(source, frame.Id, child, rel, DateTimeOffset.UtcNow, generation);
                         pending.Add(entry);
                         if (child.IsDirectory)
                         {
                             job.DirsSeen++;
-                            if (ReparsePolicy.ShouldRecurseIntoDirectory(child))
+                            if (location.IsRecycleBin)
+                            {
+                                frame.Dirs++;
+                            }
+                            else if (ReparsePolicy.ShouldRecurseIntoDirectory(child))
                             {
                                 childDirs.Add(new Frame
                                 {

src/Explorer.Indexing/FolderReconciler.cs

@@ -10,17 +10,20 @@ public sealed class FolderReconciler
     private readonly IFileSystemEnumerator _enumerator;
     private readonly StorageProviderRegistry _providers;
     private readonly ArchiveContentsIndexer? _archives;
+    private readonly UiPreferencesStore? _preferences;
 
     public FolderReconciler(
         IIndexStore store,
         IFileSystemEnumerator enumerator,
         StorageProviderRegistry providers,
-        ArchiveContentsIndexer? archives = null)
+        ArchiveContentsIndexer? archives = null,
+        UiPreferencesStore? preferences = null)
     {
         _store = store;
         _enumerator = enumerator;
         _providers = providers;
         _archives = archives;
+        _preferences = preferences;
     }
 
     public async Task ReconcileAsync(Source source, string pathRel, CancellationToken cancellationToken)
@@ -56,7 +59,7 @@ public sealed class FolderReconciler
             return;
         }
 
-        if (!Directory.Exists(full))
+        if (!Directory.Exists(full) || LocationClassifier.IsRecycleBinName(parent.Name))
         {
             return;
         }
@@ -69,11 +72,18 @@ public sealed class FolderReconciler
         var liveNames = new HashSet<string>(live.Select(i => NameNormalizer.Normalize(i.Name)), StringComparer.Ordinal);
         var archivesToExpand = new List<IndexEntry>();
         var archivesToTomb = new List<string>();
+        var prefs = _preferences?.Load() ?? UiPreferences.Default;
 
         await _store.RunWriteAsync(async s =>
         {
             foreach (var item in live)
             {
+                var location = LocationClassifier.Classify(item.FullPath, item.Name, item.Attributes, item.IsDirectory);
+                if (!LocationVisibility.ShouldShow(location, prefs) || location.IsRecycleBin)
+                {
+                    continue;
+                }
+
                 var rel = PathRules.MakeRelative(source.LastRootPath, item.FullPath);
                 var entry = new IndexEntry
                 {

src/Explorer.Presentation/ViewModels/ExplorerPaneViewModel.cs

@@ -92,22 +92,13 @@ public sealed partial class ExplorerPaneViewModel : ObservableObject
 
             var sizeFromIndex = CurrentSource is { IsIndexed: true };
             Items.Clear();
-            IEnumerable<FileSystemItem> ordered = listing.Items;
+            foreach (var item in listing.Items)
-            ordered = SortProperty switch
-            {
-                "Size" => SortDescending ? ordered.OrderByDescending(i => i.SizeBytes) : ordered.OrderBy(i => i.SizeBytes),
-                "Modified" => SortDescending ? ordered.OrderByDescending(i => i.ModifiedUtc) : ordered.OrderBy(i => i.ModifiedUtc),
-                "Type" => SortDescending ? ordered.OrderByDescending(i => i.IsDirectory) : ordered.OrderBy(i => i.IsDirectory),
-                _ => SortDescending
-                    ? ordered.OrderByDescending(i => i.IsDirectory).ThenByDescending(i => i.Name, StringComparer.CurrentCultureIgnoreCase)
-                    : ordered.OrderByDescending(i => i.IsDirectory).ThenBy(i => i.Name, StringComparer.CurrentCultureIgnoreCase)
-            };
-
-            foreach (var item in ordered)
             {
                 Items.Add(new FolderItemViewModel(item, sizeFromIndex && item.IsDirectory));
             }
 
+            ApplyCurrentSort();
+
             if (CurrentSource is { IsIndexed: true, Status: SourceStatus.Online } src
                 && Directory.Exists(path))
             {
@@ -141,6 +132,8 @@ public sealed partial class ExplorerPaneViewModel : ObservableObject
         {
             Items.Add(new FolderItemViewModel(item, sizeFromIndex: item.SizeBytes > 0));
         }
+
+        ApplyCurrentSort();
     }
 
     [RelayCommand]
@@ -218,8 +211,56 @@ public sealed partial class ExplorerPaneViewModel : ObservableObject
         _indexing.EnqueueFolderScan(CurrentSource.Id, rel);
     }
 
-    partial void OnSortPropertyChanged(string value) => _ = RefreshAsync();
+    public void SortBy(string property)
-    partial void OnSortDescendingChanged(bool value) => _ = RefreshAsync();
+    {
+        if (string.Equals(SortProperty, property, StringComparison.OrdinalIgnoreCase))
+        {
+            SortDescending = !SortDescending;
+        }
+        else
+        {
+            SortProperty = property;
+            SortDescending = property is "Size" or "Free" or "Modified";
+        }
+
+        ApplyCurrentSort();
+    }
+
+    public void ApplyCurrentSort()
+    {
+        var ordered = OrderItems(Items, SortProperty, SortDescending).ToList();
+        Items.Clear();
+        foreach (var item in ordered)
+        {
+            Items.Add(item);
+        }
+    }
+
+    public static IEnumerable<FolderItemViewModel> OrderItems(
+        IEnumerable<FolderItemViewModel> items,
+        string property,
+        bool descending)
+    {
+        var names = StringComparer.CurrentCultureIgnoreCase;
+        return property switch
+        {
+            "Size" => descending
+                ? items.OrderByDescending(i => i.Item.SizeBytes).ThenBy(i => i.Name, names)
+                : items.OrderBy(i => i.Item.SizeBytes).ThenBy(i => i.Name, names),
+            "Free" => descending
+                ? items.OrderByDescending(i => i.Item.FreeSpaceBytes ?? -1).ThenBy(i => i.Name, names)
+                : items.OrderBy(i => i.Item.FreeSpaceBytes ?? long.MaxValue).ThenBy(i => i.Name, names),
+            "Modified" => descending
+                ? items.OrderByDescending(i => i.Item.ModifiedUtc).ThenBy(i => i.Name, names)
+                : items.OrderBy(i => i.Item.ModifiedUtc).ThenBy(i => i.Name, names),
+            "Type" => descending
+                ? items.OrderByDescending(i => i.TypeLabel, names).ThenByDescending(i => i.Name, names)
+                : items.OrderBy(i => i.TypeLabel, names).ThenBy(i => i.Name, names),
+            _ => descending
+                ? items.OrderBy(i => i.IsDirectory).ThenByDescending(i => i.Name, names)
+                : items.OrderByDescending(i => i.IsDirectory).ThenBy(i => i.Name, names)
+        };
+    }
 
     private static IReadOnlyList<BreadcrumbSegment> BuildBreadcrumb(string path)
     {

src/Explorer.Presentation/ViewModels/FolderItemViewModel.cs

@@ -6,22 +6,53 @@ namespace Explorer.Presentation;
 public sealed partial class FolderItemViewModel : ObservableObject
 {
     [ObservableProperty] private bool _isSelected;
+    [ObservableProperty] private bool _isRenaming;
+    [ObservableProperty] private bool _isDropTarget;
+    [ObservableProperty] private string _editName = "";
 
     public FolderItemViewModel(FileSystemItem item, bool sizeFromIndex)
     {
         Item = item;
         SizeFromIndex = sizeFromIndex;
+        _editName = item.Name;
+    }
+
+    public void BeginRename()
+    {
+        EditName = Item.Name;
+        IsRenaming = true;
+    }
+
+    public void CancelRename()
+    {
+        IsRenaming = false;
+        EditName = Item.Name;
     }
 
     public FileSystemItem Item { get; }
     public bool SizeFromIndex { get; }
-    public string Name => Item.Name;
+    public string Name => Item.DisplayName ?? Item.Name;
     public string FullPath => Item.FullPath;
     public bool IsDirectory => Item.IsDirectory;
-    public string TypeLabel => Item.IsDirectory ? "File folder" : (Item.ExtensionDisplay());
+    public string TypeLabel => Item.Location.IsRecycleBin
-    public string SizeLabel => Item.IsDirectory && !SizeFromIndex && Item.SizeBytes == 0
+        ? "Recycle Bin"
-        ? ""
+        : Item.IsDirectory ? "File folder" : (Item.ExtensionDisplay());
-        : Formatters.Size(Item.SizeBytes);
+    public string SizeLabel => Item.SizeKnowledge switch
+    {
+        SizeKnowledge.Unknown when Item.Location.AccessDenied => "Access denied",
+        SizeKnowledge.Unknown => "",
+        SizeKnowledge.Partial when Item.SizeBytes > 0 => $"{Formatters.Size(Item.SizeBytes)} (partial)",
+        SizeKnowledge.Partial => "Access denied",
+        _ when Item.IsDirectory && !SizeFromIndex && Item.SizeBytes == 0 => "",
+        _ => Formatters.Size(Item.SizeBytes)
+    };
+    public string FreeSpaceLabel => Item.FreeSpaceBytes is long free ? Formatters.Size(free) : "";
+    public string FreeSpaceTooltip
+        => Item.FreeSpaceBytes is long free && Item.CapacityBytes is long total && total > 0
+            ? $"{Formatters.Size(free)} free of {Formatters.Size(total)}"
+            : FreeSpaceLabel;
+    public string StatusGlyph => Item.Location.IsRecycleBin ? "🗑" : Item.Location.IsProtected || Item.Location.AccessDenied ? "⚠" : "";
+    public bool HasStatusGlyph => StatusGlyph.Length > 0;
     public string ModifiedLabel => Formatters.Date(Item.ModifiedUtc);
     public string CreatedLabel => Formatters.Date(Item.CreatedUtc);
     public string IconGlyph => Item.IsDirectory ? "\uE8B7" : "\uE8A5";
@@ -44,6 +75,11 @@ public sealed partial class FolderItemViewModel : ObservableObject
                     : $"{CloudStatus} · Size {logical} · On disk {Formatters.Size(disk)}";
             }
 
+            if (Item.Location.AccessDenied)
+            {
+                return string.IsNullOrEmpty(CloudStatus) ? "Access denied" : $"{CloudStatus} · Access denied";
+            }
+
             return string.IsNullOrEmpty(CloudStatus) ? logical : $"{CloudStatus} · {logical}";
         }
     }

src/Explorer.Presentation/ViewModels/MainViewModel.cs

@@ -50,7 +50,8 @@ public sealed partial class MainViewModel : ObservableObject
         PathHistoryStore pathHistory,
         StorageProviderRegistry providers,
         CloudPlaceStore cloudPlaces,
-        UiPreferencesStore preferences)
+        UiPreferencesStore preferences,
+        IVolumeService volumes)
     {
         _browse = browse;
         _ops = ops;
@@ -64,10 +65,10 @@ public sealed partial class MainViewModel : ObservableObject
         Theme = prefs.Theme;
         PathHistory = [];
         Tree = new NavigationTreeViewModel(sources, browse, providers, cloudPlaces, preferences);
-        Search = new SearchViewModel(search, sources);
+        Search = new SearchViewModel(search, sources, volumes);
         Analysis = new AnalysisViewModel(analysis);
         Duplicates = new DuplicateViewModel(store, sources);
-        Transfers = new TransferQueueViewModel(transfers);
+        Transfers = new TransferQueueViewModel(transfers, preferences);
         Tabs = [];
         Clipboard = clipboard;
         transfers.JobFinished += (_, job) =>
@@ -87,13 +88,22 @@ public sealed partial class MainViewModel : ObservableObject
             var text = p.Status == ScanJobStatus.Done
                 ? $"Indexed {p.FilesSeen:N0} files"
                 : $"Indexing… {p.FilesSeen:N0} files · {p.CurrentPath}";
+            void Apply()
+            {
+                Footer = text;
+                if (p.Status is ScanJobStatus.Done or ScanJobStatus.Failed or ScanJobStatus.Cancelled)
+                {
+                    _ = Tree.ApplySourceStateAsync(p.SourceId);
+                }
+            }
+
             if (_ui is { } ctx)
             {
-                ctx.Post(_ => Footer = text, null);
+                ctx.Post(_ => Apply(), null);
             }
             else
             {
-                Footer = text;
+                Apply();
             }
         };
     }
@@ -304,32 +314,52 @@ public sealed partial class MainViewModel : ObservableObject
             paths = [ActivePane.CurrentPath];
         }
 
-        CopyPathsToClipboard(paths);
+        CopyPathText(paths);
     }
 
+    public event EventHandler<string>? InlineRenameRequested;
+
     [RelayCommand]
-    public void NewFolder()
+    public async Task NewFolder()
+    {
+        var created = await CreateNewFolderAsync().ConfigureAwait(true);
+        if (created is not null)
+        {
+            InlineRenameRequested?.Invoke(this, created);
+        }
+    }
+
+    public async Task<string?> CreateNewFolderAsync()
     {
         if (LocationRoots.IsVirtual(ActivePane.CurrentPath) || ActivePane.IsOffline)
         {
-            return;
+            Footer = LocationRoots.IsVirtual(ActivePane.CurrentPath)
+                ? "Open a folder to create a new folder."
+                : "This location is offline.";
+            return null;
         }
 
-        _ops.NewFolder(ActivePane.CurrentPath);
+        var created = _ops.NewFolder(ActivePane.CurrentPath);
         EnqueueReconcile(ActivePane.CurrentPath);
-        _ = RefreshFolderViewsAsync(ActivePane.CurrentPath);
+        Footer = $"Created {PathRules.GetFileName(created)}.";
+        await RefreshFolderViewsAsync(ActivePane.CurrentPath).ConfigureAwait(true);
+        return created;
     }
 
     public void RenameSelected(string newName)
     {
         var item = ActivePane.SelectedItems.FirstOrDefault();
-        if (item is null)
+        if (item is not null)
         {
-            return;
+            RenameItem(item, newName);
+        }
     }
 
+    public void RenameItem(FolderItemViewModel item, string newName)
+    {
         _ops.Rename(item.FullPath, newName);
         EnqueueReconcile(ActivePane.CurrentPath);
+        Footer = $"Renamed to {newName}.";
         _ = RefreshFolderViewsAsync(ActivePane.CurrentPath);
     }
 
@@ -539,7 +569,7 @@ public sealed partial class MainViewModel : ObservableObject
     {
         if (Analysis.SelectedPath is { } path)
         {
-            CopyPathsToClipboard([path]);
+            CopyPathText([path]);
         }
     }
 
@@ -623,11 +653,27 @@ public sealed partial class MainViewModel : ObservableObject
         return stored with { Theme = UiPreferencesStore.NormalizeTheme(Theme) };
     }
 
+    public void SaveLayout(double width, double height, double left, double top, bool maximized, double treeWidth)
+    {
+        var stored = _preferences.Load();
+        _preferences.Save(stored with
+        {
+            Theme = UiPreferencesStore.NormalizeTheme(Theme),
+            WindowWidth = width,
+            WindowHeight = height,
+            WindowLeft = left,
+            WindowTop = top,
+            WindowMaximized = maximized,
+            TreeWidth = treeWidth
+        });
+    }
+
     public async Task ApplyPreferencesAsync(UiPreferences preferences)
     {
         var normalized = preferences with { Theme = UiPreferencesStore.NormalizeTheme(preferences.Theme) };
         _preferences.Save(normalized);
         Theme = normalized.Theme;
+        Transfers.ApplyPreferences();
         await Tree.ReloadAsync(ActivePane.CurrentPath).ConfigureAwait(true);
         foreach (var tab in Tabs)
         {
@@ -849,6 +895,23 @@ public sealed partial class MainViewModel : ObservableObject
         Clipboard.SetFiles(paths, _clipboardIsCut);
     }
 
+    private void CopyPathText(IReadOnlyList<string> paths)
+    {
+        if (paths.Count == 0)
+        {
+            return;
+        }
+
+        Clipboard.SetText(string.Join(Environment.NewLine, paths.Select(QuotePath)));
+        Footer = paths.Count == 1 ? "Path copied." : $"{paths.Count} paths copied.";
+    }
+
+    private static string QuotePath(string path)
+    {
+        var normalized = PathRules.FromExtended(path);
+        return normalized.StartsWith('"') ? normalized : $"\"{normalized}\"";
+    }
+
     partial void OnActiveTabChanged(ExplorerTabViewModel value)
     {
         PathText = value.ActivePane.CurrentPath;

src/Explorer.Presentation/ViewModels/NavigationTreeViewModel.cs

@@ -15,6 +15,7 @@ public sealed partial class NavNodeViewModel : ObservableObject
     [ObservableProperty] private string _status = "";
     [ObservableProperty] private bool _isOffline;
     [ObservableProperty] private bool _childrenLoaded;
+    [ObservableProperty] private bool _isDropTarget;
 
     public ObservableCollection<NavNodeViewModel> Children { get; } = [];
     public string Glyph { get; init; } = "\uE8B7";
@@ -321,6 +322,37 @@ public sealed class NavigationTreeViewModel
         }
     }
 
+    public async Task ApplySourceStateAsync(long sourceId, CancellationToken cancellationToken = default)
+    {
+        var source = await _sources.GetAsync(sourceId, cancellationToken).ConfigureAwait(true);
+        if (source is null)
+        {
+            return;
+        }
+
+        var node = FindBySourceId(Roots, sourceId)
+                   ?? (source.LastRootPath is null ? null : FindByPath(Roots, source.LastRootPath));
+        if (node is null)
+        {
+            return;
+        }
+
+        node.Status = FormatStatus(source);
+        node.IsOffline = source.Status == SourceStatus.Offline;
+    }
+
+    public static string FormatStatus(Source source)
+        => source.Status switch
+        {
+            SourceStatus.Offline => source.LastSeenUtc is null
+                ? "Offline"
+                : $"Offline · Last seen {source.LastSeenUtc.Value.ToLocalTime():d}",
+            SourceStatus.Scanning => "Indexing",
+            SourceStatus.Stale => "May be out of date",
+            SourceStatus.Error => "Error",
+            _ => source.IsIndexed ? "Indexed" : ""
+        };
+
     public static bool PathsEqual(string a, string b)
     {
         if (string.Equals(a, b, StringComparison.OrdinalIgnoreCase))
@@ -362,16 +394,7 @@ public sealed class NavigationTreeViewModel
         {
             Label = source.DisplayName,
             Path = source.LastRootPath ?? source.DisplayName,
-            Status = source.Status switch
+            Status = FormatStatus(source),
-            {
-                SourceStatus.Offline => source.LastSeenUtc is null
-                    ? "Offline"
-                    : $"Offline · Last seen {source.LastSeenUtc.Value.ToLocalTime():d}",
-                SourceStatus.Scanning => "Indexing",
-                SourceStatus.Stale => "May be out of date",
-                SourceStatus.Error => "Error",
-                _ => source.IsIndexed ? "Indexed" : ""
-            },
             IsOffline = source.Status == SourceStatus.Offline,
             Glyph = source.Kind == SourceKind.Removable ? "\uE88E" : source.Kind.IsNetwork() ? "\uE968" : "\uEDA2",
             SourceId = source.Id,
@@ -489,6 +512,30 @@ public sealed class NavigationTreeViewModel
         return null;
     }
 
+    private static NavNodeViewModel? FindBySourceId(IEnumerable<NavNodeViewModel> nodes, long sourceId)
+    {
+        foreach (var node in nodes)
+        {
+            if (node.IsPlaceholder)
+            {
+                continue;
+            }
+
+            if (node.SourceId == sourceId)
+            {
+                return node;
+            }
+
+            var child = FindBySourceId(node.Children, sourceId);
+            if (child is not null)
+            {
+                return child;
+            }
+        }
+
+        return null;
+    }
+
     private static NavNodeViewModel? FindByPath(IEnumerable<NavNodeViewModel> nodes, string path)
     {
         foreach (var node in nodes)

src/Explorer.Presentation/ViewModels/SearchViewModel.cs

@@ -3,6 +3,7 @@ using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using Explorer.Application;
 using Explorer.Domain;
+using Explorer.Domain.Abstractions;
 using Explorer.Search;
 
 namespace Explorer.Presentation.ViewModels;
@@ -13,6 +14,7 @@ public sealed partial class SearchViewModel : ObservableObject
 {
     private readonly SearchService _search;
     private readonly SourceManager _sources;
+    private readonly IVolumeService _volumes;
     private CancellationTokenSource? _runCts;
 
     [ObservableProperty] private string _text = "";
@@ -26,10 +28,11 @@ public sealed partial class SearchViewModel : ObservableObject
     [ObservableProperty] private bool _isBusy;
     [ObservableProperty] private string _status = "";
 
-    public SearchViewModel(SearchService search, SourceManager sources)
+    public SearchViewModel(SearchService search, SourceManager sources, IVolumeService volumes)
     {
         _search = search;
         _sources = sources;
+        _volumes = volumes;
         Results = [];
     }
 
@@ -111,12 +114,19 @@ public sealed partial class SearchViewModel : ObservableObject
 
             var entries = await _search.SearchAsync(query, ct).ConfigureAwait(true);
             var byId = sources.ToDictionary(s => s.Id);
+            var spaceCache = new Dictionary<string, VolumeSpace>(StringComparer.OrdinalIgnoreCase);
             foreach (var entry in entries)
             {
                 byId.TryGetValue(entry.SourceId, out var src);
                 var full = src?.LastRootPath is null
                     ? (src?.DisplayName ?? "") + "\\" + entry.PathRel
                     : PathRules.Combine(src.LastRootPath, entry.PathRel);
+                var spaceKey = PathRules.IsUnc(full) ? PathRules.CanonicalUncRoot(full) : Path.GetPathRoot(full) ?? full;
+                if (!spaceCache.TryGetValue(spaceKey, out var space))
+                {
+                    space = _volumes.GetSpace(full);
+                    spaceCache[spaceKey] = space;
+                }
                 Results.Add(new FolderItemViewModel(new FileSystemItem
                 {
                     FullPath = full,
@@ -127,7 +137,9 @@ public sealed partial class SearchViewModel : ObservableObject
                     ModifiedUtc = entry.ModifiedUtc,
                     Attributes = entry.Attributes,
                     FileId = entry.FileId,
-                    ReparseTag = entry.ReparseTag
+                    ReparseTag = entry.ReparseTag,
+                    FreeSpaceBytes = space.FreeBytes,
+                    CapacityBytes = space.CapacityBytes
                 }, entry.IsDirectory));
             }
 

src/Explorer.Presentation/ViewModels/TransferQueueViewModel.cs

@@ -1,39 +1,243 @@
 using System.Collections.ObjectModel;
 using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Explorer.Application;
 using Explorer.Domain;
 using Explorer.FileOperations;
 
 namespace Explorer.Presentation.ViewModels;
 
+public sealed partial class TransferJobViewModel : ObservableObject
+{
+    [ObservableProperty] private TransferStatus _status;
+    [ObservableProperty] private string _title = "";
+    [ObservableProperty] private string _subtitle = "";
+    [ObservableProperty] private string _statusText = "";
+    [ObservableProperty] private string _bytesText = "";
+    [ObservableProperty] private string _speedText = "";
+    [ObservableProperty]
+    [NotifyPropertyChangedFor(nameof(HasCurrentFile))]
+    private string _currentFile = "";
+    [ObservableProperty] private double _progress;
+    [ObservableProperty] private bool _hasProgress;
+    [ObservableProperty] private bool _canPause;
+    [ObservableProperty] private bool _canResume;
+    [ObservableProperty] private bool _canRemove;
+    [ObservableProperty] private bool _canMoveUp;
+    [ObservableProperty] private bool _canMoveDown;
+    [ObservableProperty] private bool _isActive;
+    [ObservableProperty] private bool _isFailed;
+
+    public long Id { get; }
+    public TransferJob Job { get; }
+    public bool HasCurrentFile => !string.IsNullOrWhiteSpace(CurrentFile);
+
+    public TransferJobViewModel(TransferJob job)
+    {
+        Id = job.Id;
+        Job = job;
+        Apply(job, canMoveUp: false, canMoveDown: false, speed: null);
+    }
+
+    public void Apply(TransferJob job, bool canMoveUp, bool canMoveDown, string? speed)
+    {
+        Status = job.Status;
+        Title = DisplayName(job);
+        Subtitle = DestinationText(job);
+        StatusText = StatusLabel(job);
+        BytesText = BytesLabel(job);
+        SpeedText = job.Status == TransferStatus.Running ? speed ?? "" : "";
+        CurrentFile = job.Status is TransferStatus.Running or TransferStatus.Paused
+            ? FileName(job.CurrentPath)
+            : "";
+        Progress = job.BytesTotal is > 0 ? Math.Clamp(job.BytesDone / (double)job.BytesTotal.Value, 0, 1) : 0;
+        HasProgress = job.BytesTotal is > 0 && job.Status is TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling;
+        CanPause = job.Status is TransferStatus.Queued or TransferStatus.Running;
+        CanResume = job.Status == TransferStatus.Paused;
+        CanRemove = job.Status is not TransferStatus.Cancelling;
+        CanMoveUp = canMoveUp && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
+        CanMoveDown = canMoveDown && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
+        IsActive = job.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling;
+        IsFailed = job.Status == TransferStatus.Failed;
+    }
+
+    private static string DisplayName(TransferJob job)
+    {
+        if (job.Op == TransferOp.Delete)
+        {
+            var count = job.AdditionalSources.Count > 0
+                ? job.AdditionalSources.Count
+                : job.SourcePath.Split('|', StringSplitOptions.RemoveEmptyEntries).Length;
+            return count <= 1 ? FileName(job.SourcePath) : $"{count} items";
+        }
+
+        return FileName(job.SourcePath);
+    }
+
+    private static string DestinationText(TransferJob job)
+        => job.Op switch
+        {
+            TransferOp.Copy => $"Copy to {FolderName(job.DestinationPath)}",
+            TransferOp.Move => $"Move to {FolderName(job.DestinationPath)}",
+            TransferOp.Delete => string.Equals(job.DestinationPath, "permanent", StringComparison.Ordinal)
+                ? "Delete permanently"
+                : "Move to Recycle Bin",
+            _ => job.Op.ToString()
+        };
+
+    private static string StatusLabel(TransferJob job)
+        => job.Status switch
+        {
+            TransferStatus.Queued => "Queued",
+            TransferStatus.Running => job.FilesTotal > 0
+                ? $"{OpWord(job.Op)} {job.FilesDone:N0} of {job.FilesTotal:N0}"
+                : "Working…",
+            TransferStatus.Paused => "Paused",
+            TransferStatus.Cancelling => "Cancelling…",
+            TransferStatus.Cancelled => "Cancelled",
+            TransferStatus.Failed => string.IsNullOrWhiteSpace(job.Error) ? "Failed" : job.Error,
+            TransferStatus.Done => "Done",
+            _ => job.Status.ToString()
+        };
+
+    private static string BytesLabel(TransferJob job)
+    {
+        if (job.BytesTotal is > 0)
+        {
+            return $"{FormatBytes(job.BytesDone)} of {FormatBytes(job.BytesTotal.Value)}";
+        }
+
+        return job.BytesDone > 0 ? FormatBytes(job.BytesDone) : "";
+    }
+
+    internal static string FileName(string? path)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return "";
+        }
+
+        var name = PathRules.GetFileName(path.Split('|')[0]);
+        return string.IsNullOrWhiteSpace(name) ? path : name;
+    }
+
+    private static string FolderName(string? path)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return "";
+        }
+
+        var folder = PathRules.Parent(path);
+        return string.IsNullOrWhiteSpace(folder) ? path : folder;
+    }
+
+    internal static string FormatBytes(long bytes)
+    {
+        string[] units = ["B", "KB", "MB", "GB", "TB", "PB"];
+        double value = Math.Max(0, bytes);
+        var unit = 0;
+        while (value >= 1024 && unit < units.Length - 1)
+        {
+            value /= 1024;
+            unit++;
+        }
+
+        return unit == 0 ? $"{bytes} B" : $"{value:0.#} {units[unit]}";
+    }
+
+    private static string OpWord(TransferOp op)
+        => op switch
+        {
+            TransferOp.Copy => "Copying",
+            TransferOp.Move => "Moving",
+            TransferOp.Delete => "Deleting",
+            _ => "Working"
+        };
+}
+
 public sealed partial class TransferQueueViewModel : ObservableObject
 {
     private readonly TransferQueue _queue;
+    private readonly UiPreferencesStore _preferences;
     private readonly SynchronizationContext? _ui = SynchronizationContext.Current;
+    private readonly Dictionary<long, (long Bytes, DateTime Utc)> _speed = [];
 
-    public TransferQueueViewModel(TransferQueue queue)
+    private bool _holdCollapsed;
+
+    [ObservableProperty] private bool _isExpanded;
+    [ObservableProperty] private bool _showPanel;
+    [ObservableProperty] private bool _isQueuePaused;
+    [ObservableProperty] private bool _hasJobs;
+    [ObservableProperty] private bool _hasActiveJobs;
+    [ObservableProperty] private bool _hasFinishedJobs;
+    [ObservableProperty] private bool _canPauseAll;
+    [ObservableProperty] private bool _canResumeAll;
+    [ObservableProperty] private string _summary = "";
+    [ObservableProperty] private double _overallProgress;
+    [ObservableProperty] private bool _hasOverallProgress;
+
+    public TransferQueueViewModel(TransferQueue queue, UiPreferencesStore preferences)
     {
         _queue = queue;
+        _preferences = preferences;
         Jobs = [];
-        _queue.Changed += (_, _) =>
+        _queue.Changed += (_, _) => Dispatch(Reload);
-        {
-            if (_ui is { } ctx)
-            {
-                ctx.Post(_ => Reload(), null);
-            }
-            else
-            {
-                Reload();
-            }
-        };
         Reload();
     }
 
-    public ObservableCollection<TransferJob> Jobs { get; }
+    public void ApplyPreferences()
-    public bool HasJobs => Jobs.Count > 0;
-
-    public void Cancel(TransferJob job)
     {
-        if (job.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Cancelling)
+        if (_preferences.Load().AutoClearQueueWhenDone)
+        {
+            _queue.ClearFinished();
+        }
+
+        Reload();
+    }
+
+    public ObservableCollection<TransferJobViewModel> Jobs { get; }
+
+    [RelayCommand]
+    public void ToggleExpanded()
+    {
+        IsExpanded = !IsExpanded;
+        _holdCollapsed = !IsExpanded;
+    }
+
+    [RelayCommand]
+    public void PauseAll() => _queue.PauseAll();
+
+    [RelayCommand]
+    public void ResumeAll() => _queue.ResumeAll();
+
+    [RelayCommand]
+    public void Pause(TransferJobViewModel? job)
+    {
+        if (job is not null)
+        {
+            _queue.Pause(job.Id);
+        }
+    }
+
+    [RelayCommand]
+    public void Resume(TransferJobViewModel? job)
+    {
+        if (job is not null)
+        {
+            _queue.Resume(job.Id);
+        }
+    }
+
+    [RelayCommand]
+    public void Remove(TransferJobViewModel? job)
+    {
+        if (job is null)
+        {
+            return;
+        }
+
+        if (job.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling)
         {
             _queue.Cancel(job.Id);
         }
@@ -43,18 +247,184 @@ public sealed partial class TransferQueueViewModel : ObservableObject
         }
     }
 
+    [RelayCommand]
+    public void MoveUp(TransferJobViewModel? job)
+    {
+        if (job is not null)
+        {
+            _queue.MoveUp(job.Id);
+        }
+    }
+
+    [RelayCommand]
+    public void MoveDown(TransferJobViewModel? job)
+    {
+        if (job is not null)
+        {
+            _queue.MoveDown(job.Id);
+        }
+    }
+
+    [RelayCommand]
+    public void ClearFinished() => _queue.ClearFinished();
+
+    public void Cancel(TransferJob job)
+    {
+        if (job.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling)
+        {
+            _queue.Cancel(job.Id);
+        }
+        else
+        {
+            _queue.Dismiss(job.Id);
+        }
+    }
+
+    private void Dispatch(Action action)
+    {
+        if (_ui is { } ctx)
+        {
+            ctx.Post(_ => action(), null);
+        }
+        else
+        {
+            action();
+        }
+    }
+
     private void Reload()
     {
-        Jobs.Clear();
+        if (_preferences.Load().AutoClearQueueWhenDone)
-        foreach (var job in _queue.Snapshot().Where(IsVisible))
         {
-            Jobs.Add(job);
+            _queue.ClearFinished();
         }
 
-        OnPropertyChanged(nameof(HasJobs));
+        var snapshot = _queue.Snapshot();
+        var visible = snapshot.Where(IsVisible).ToList();
+        var ids = visible.Select(j => j.Id).ToHashSet();
+
+        for (var i = Jobs.Count - 1; i >= 0; i--)
+        {
+            if (!ids.Contains(Jobs[i].Id))
+            {
+                _speed.Remove(Jobs[i].Id);
+                Jobs.RemoveAt(i);
             }
+        }
+
+        for (var i = 0; i < visible.Count; i++)
+        {
+            var job = visible[i];
+            var existing = Jobs.FirstOrDefault(j => j.Id == job.Id);
+            var canMoveUp = i > 0 && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
+            var canMoveDown = i < visible.Count - 1 && job.Status is not TransferStatus.Running and not TransferStatus.Cancelling;
+            var speed = SpeedText(job);
+            if (existing is null)
+            {
+                var vm = new TransferJobViewModel(job);
+                vm.Apply(job, canMoveUp, canMoveDown, speed);
+                Jobs.Insert(i, vm);
+            }
+            else
+            {
+                existing.Apply(job, canMoveUp, canMoveDown, speed);
+                var current = Jobs.IndexOf(existing);
+                if (current != i && current >= 0)
+                {
+                    Jobs.Move(current, i);
+                }
+            }
+        }
+
+        var active = snapshot.Where(j => j.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Paused or TransferStatus.Cancelling).ToList();
+        var currentJob = snapshot.FirstOrDefault(j => j.Status is TransferStatus.Running or TransferStatus.Paused)
+                         ?? active.FirstOrDefault();
+        HasJobs = Jobs.Count > 0;
+        HasActiveJobs = active.Count > 0;
+        HasFinishedJobs = snapshot.Any(j => j.Status is TransferStatus.Done or TransferStatus.Cancelled);
+        IsQueuePaused = _queue.IsPaused || active.Any(j => j.Status == TransferStatus.Paused);
+        CanPauseAll = active.Any(j => j.Status is TransferStatus.Queued or TransferStatus.Running);
+        CanResumeAll = _queue.IsPaused || active.Any(j => j.Status == TransferStatus.Paused);
+        HasOverallProgress = currentJob?.BytesTotal is > 0;
+        OverallProgress = currentJob?.BytesTotal is > 0
+            ? Math.Clamp(currentJob.BytesDone / (double)currentJob.BytesTotal.Value, 0, 1)
+            : 0;
+        Summary = BuildSummary(active, currentJob);
+        if (HasActiveJobs && !_holdCollapsed)
+        {
+            IsExpanded = true;
+        }
+        else if (!HasActiveJobs)
+        {
+            _holdCollapsed = false;
+        }
+
+        ShowPanel = IsExpanded && HasJobs;
+    }
+
+    partial void OnIsExpandedChanged(bool value) => ShowPanel = value && HasJobs;
+
+    private string? SpeedText(TransferJob job)
+    {
+        if (job.Status != TransferStatus.Running)
+        {
+            _speed.Remove(job.Id);
+            return null;
+        }
+
+        var now = DateTime.UtcNow;
+        if (_speed.TryGetValue(job.Id, out var prev))
+        {
+            var seconds = (now - prev.Utc).TotalSeconds;
+            if (seconds >= 0.4 && job.BytesDone >= prev.Bytes)
+            {
+                var rate = (job.BytesDone - prev.Bytes) / seconds;
+                _speed[job.Id] = (job.BytesDone, now);
+                return rate > 0 ? $"{TransferJobViewModel.FormatBytes((long)rate)}/s" : null;
+            }
+
+            return null;
+        }
+
+        _speed[job.Id] = (job.BytesDone, now);
+        return null;
+    }
+
+    private static string BuildSummary(IReadOnlyList<TransferJob> active, TransferJob? current)
+    {
+        if (active.Count == 0)
+        {
+            return "";
+        }
+
+        var waiting = active.Count(j => j.Status == TransferStatus.Queued);
+        var name = current is null ? $"{active.Count} transfers" : TransferJobViewModel.FileName(current.SourcePath);
+        if (current?.Status == TransferStatus.Paused)
+        {
+            return waiting > 0 ? $"Paused · {name} · {waiting} waiting" : $"Paused · {name}";
+        }
+
+        if (current?.Status == TransferStatus.Running)
+        {
+            return waiting > 0 ? $"{OpVerb(current.Op)} {name} · {waiting} waiting" : $"{OpVerb(current.Op)} {name}";
+        }
+
+        return waiting == active.Count
+            ? $"{active.Count} queued"
+            : $"{active.Count} transfers";
+    }
+
+    private static string OpVerb(TransferOp op)
+        => op switch
+        {
+            TransferOp.Copy => "Copying",
+            TransferOp.Move => "Moving",
+            TransferOp.Delete => "Deleting",
+            _ => op.ToString()
+        };
 
     private static bool IsVisible(TransferJob job)
-        => job.Status is TransferStatus.Queued or TransferStatus.Running
+        => job.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Paused
-            or TransferStatus.Cancelling or TransferStatus.Failed;
+            or TransferStatus.Cancelling or TransferStatus.Failed or TransferStatus.Done
+            or TransferStatus.Cancelled;
 }

src/Explorer.Storage.Sqlite/MiscStores.cs

@@ -60,6 +60,11 @@ internal sealed class ExcludeStore : IExcludeStore
             {
                 await AddAsync(rule, cancellationToken).ConfigureAwait(false);
             }
+
+            await _store.WriteAsync(conn => conn.ExecuteAsync("""
+                DELETE FROM excludes
+                WHERE pattern IN ('C:\System Volume Information', '$Recycle.Bin')
+                """), cancellationToken).ConfigureAwait(false);
         }, cancellationToken);
 }
 
@@ -88,10 +93,28 @@ internal sealed class ScanJobStore : IScanJobStore
             """, Args(job)), cancellationToken);
 
     public Task InterruptRunningAsync(CancellationToken cancellationToken = default)
-        => _store.WriteAsync(conn => conn.ExecuteAsync("""
+        => _store.WriteAsync(async conn =>
+        {
+            var utc = DateTimeOffset.UtcNow.ToString("O");
+            await conn.ExecuteAsync("""
                 UPDATE scan_jobs SET status='Interrupted', finished_utc=@utc
                 WHERE status IN ('Running','Queued')
-            """, new { utc = DateTimeOffset.UtcNow.ToString("O") }), cancellationToken);
+                """, new { utc }).ConfigureAwait(false);
+            await conn.ExecuteAsync("""
+                UPDATE sources SET status = CASE WHEN last_indexed_utc IS NOT NULL THEN 'Stale' ELSE 'Online' END
+                WHERE status = 'Scanning'
+                """).ConfigureAwait(false);
+        }, cancellationToken);
+
+    public async Task<bool> HasActiveAsync(long sourceId, CancellationToken cancellationToken = default)
+    {
+        await using var conn = await _store.OpenReadAsync(cancellationToken).ConfigureAwait(false);
+        var count = await conn.ExecuteScalarAsync<long>("""
+            SELECT COUNT(*) FROM scan_jobs
+            WHERE source_id = @sourceId AND status IN ('Running','Queued')
+            """, new { sourceId }).ConfigureAwait(false);
+        return count > 0;
+    }
 
     public Task AddErrorAsync(ScanError error, CancellationToken cancellationToken = default)
         => _store.WriteAsync(conn => conn.ExecuteAsync("""

src/Explorer.Windows/NativeMethods.cs

@@ -34,6 +34,8 @@ internal static partial class NativeMethods
     public const uint MoveFileWriteThrough = 0x0008;
     public const int ProgressContinue = 0;
     public const int ProgressCancel = 1;
+    public const int ProgressStop = 2;
+    public const int ErrorRequestAborted = 1235;
     public const uint ProcessModeBackgroundBegin = 0x00100000;
     public const uint ProcessModeBackgroundEnd = 0x00200000;
 
@@ -56,6 +58,10 @@ internal static partial class NativeMethods
     [return: MarshalAs(UnmanagedType.Bool)]
     public static extern bool GetVolumeInformation(string lpRootPathName, [Out] char[]? lpVolumeNameBuffer, uint nVolumeNameSize, out uint lpVolumeSerialNumber, out uint lpMaximumComponentLength, out uint lpFileSystemFlags, [Out] char[]? lpFileSystemNameBuffer, uint nFileSystemNameSize);
 
+    [DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName, out ulong lpFreeBytesAvailableToCaller, out ulong lpTotalNumberOfBytes, out ulong lpTotalNumberOfFreeBytes);
+
     [LibraryImport("kernel32.dll", SetLastError = true)]
     [return: MarshalAs(UnmanagedType.Bool)]
     public static partial bool GetFileInformationByHandle(nint hFile, out ByHandleFileInformation lpFileInformation);

src/Explorer.Windows/WindowsElevatedScanService.cs

@@ -0,0 +1,27 @@
+using System.Security.Principal;
+using Explorer.Application;
+
+namespace Explorer.Windows;
+
+public sealed class WindowsElevatedScanService : IElevatedScanService
+{
+    public bool IsElevated
+    {
+        get
+        {
+            try
+            {
+                using var identity = WindowsIdentity.GetCurrent();
+                return new WindowsPrincipal(identity).IsInRole(WindowsBuiltInRole.Administrator);
+            }
+            catch
+            {
+                return false;
+            }
+        }
+    }
+
+    public bool CanRequestElevation => false;
+
+    public string ProtectedContentHint => "Protected content requires administrator privileges.";
+}

src/Explorer.Windows/WindowsShellFileOperations.cs

@@ -77,18 +77,35 @@ public sealed class WindowsShellFileOperations : IShellFileOperations
         }
     }
 
-    public bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error)
+    public bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
     {
         error = null;
         Directory.CreateDirectory(Path.GetDirectoryName(PathRules.FromExtended(destination))!);
         var cancel = 0;
+        var paused = false;
         NativeMethods.CopyProgressRoutine cb = (total, transferred, _, _, _, _, _, _, _) =>
         {
             progress?.Report(transferred);
-            return cancellationToken.IsCancellationRequested ? NativeMethods.ProgressCancel : NativeMethods.ProgressContinue;
+            if (cancellationToken.IsCancellationRequested)
+            {
+                return NativeMethods.ProgressCancel;
+            }
+
+            if (pauseRequested?.Invoke() == true)
+            {
+                paused = true;
+                return NativeMethods.ProgressStop;
+            }
+
+            return NativeMethods.ProgressContinue;
         };
 
-        var flags = overwrite ? 0u : NativeMethods.CopyFileFailIfExists;
+        var flags = NativeMethods.CopyFileRestartable;
+        if (!overwrite)
+        {
+            flags |= NativeMethods.CopyFileFailIfExists;
+        }
+
         var ok = NativeMethods.CopyFileEx(
             PathRules.ToExtended(source),
             PathRules.ToExtended(destination),
@@ -99,7 +116,13 @@ public sealed class WindowsShellFileOperations : IShellFileOperations
         if (!ok)
         {
             var code = Marshal.GetLastWin32Error();
-            if (cancellationToken.IsCancellationRequested || code == 1235)
+            if (paused)
+            {
+                error = "Paused";
+                return false;
+            }
+
+            if (cancellationToken.IsCancellationRequested || code == NativeMethods.ErrorRequestAborted)
             {
                 error = "Cancelled";
                 return false;
@@ -112,14 +135,26 @@ public sealed class WindowsShellFileOperations : IShellFileOperations
         return true;
     }
 
-    public bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error)
+    public bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
     {
         error = null;
         Directory.CreateDirectory(Path.GetDirectoryName(PathRules.FromExtended(destination))!);
+        var paused = false;
         NativeMethods.CopyProgressRoutine cb = (total, transferred, _, _, _, _, _, _, _) =>
         {
             progress?.Report(transferred);
-            return cancellationToken.IsCancellationRequested ? NativeMethods.ProgressCancel : NativeMethods.ProgressContinue;
+            if (cancellationToken.IsCancellationRequested)
+            {
+                return NativeMethods.ProgressCancel;
+            }
+
+            if (pauseRequested?.Invoke() == true)
+            {
+                paused = true;
+                return NativeMethods.ProgressStop;
+            }
+
+            return NativeMethods.ProgressContinue;
         };
 
         var flags = NativeMethods.MoveFileCopyAllowed | NativeMethods.MoveFileWriteThrough;
@@ -137,7 +172,13 @@ public sealed class WindowsShellFileOperations : IShellFileOperations
         if (!ok)
         {
             var code = Marshal.GetLastWin32Error();
-            if (cancellationToken.IsCancellationRequested)
+            if (paused)
+            {
+                error = "Paused";
+                return false;
+            }
+
+            if (cancellationToken.IsCancellationRequested || code == NativeMethods.ErrorRequestAborted)
             {
                 error = "Cancelled";
                 return false;

src/Explorer.Windows/WindowsVolumeService.cs

@@ -46,12 +46,15 @@ public sealed class WindowsVolumeService : IVolumeService
             if (PathRules.IsUnc(path))
             {
                 var root = PathRules.CanonicalUncRoot(path);
+                var uncSpace = QuerySpace(root);
                 return new VolumeFingerprint
                 {
                     Kind = SourceKind.Smb,
                     RootPath = root,
                     DisplayName = root,
-                    Filesystem = "SMB"
+                    Filesystem = "SMB",
+                    CapacityBytes = uncSpace.CapacityBytes,
+                    FreeBytes = uncSpace.FreeBytes
                 };
             }
 
@@ -83,14 +86,15 @@ public sealed class WindowsVolumeService : IVolumeService
             uint serial = 0;
             string? fs = null;
             string? label = null;
-            long? capacity = null;
+            var space = QuerySpace(rootPath);
+            long? capacity = space.CapacityBytes;
             try
             {
                 if (drive is { IsReady: true })
                 {
                     fs = drive.DriveFormat;
                     label = drive.VolumeLabel;
-                    capacity = drive.TotalSize;
+                    capacity ??= drive.TotalSize;
                 }
             }
             catch (IOException)
@@ -165,6 +169,7 @@ public sealed class WindowsVolumeService : IVolumeService
                 Filesystem = fs,
                 Label = label,
                 CapacityBytes = capacity,
+                FreeBytes = space.FreeBytes,
                 RootPath = rootPath,
                 DisplayName = display
             };
@@ -176,6 +181,8 @@ public sealed class WindowsVolumeService : IVolumeService
         }
     }
 
+    public VolumeSpace GetSpace(string path) => QuerySpace(path);
+
     public bool IsPathReachable(string path)
     {
         try
@@ -189,6 +196,44 @@ public sealed class WindowsVolumeService : IVolumeService
         }
     }
 
+    private static VolumeSpace QuerySpace(string path)
+    {
+        try
+        {
+            if (NativeMethods.GetDiskFreeSpaceEx(
+                    PathRules.ToExtended(path),
+                    out var free,
+                    out var total,
+                    out _))
+            {
+                return new VolumeSpace((long)total, (long)free);
+            }
+        }
+        catch
+        {
+            // fall through
+        }
+
+        try
+        {
+            var root = Path.GetPathRoot(path);
+            if (!string.IsNullOrEmpty(root))
+            {
+                var drive = new DriveInfo(root);
+                if (drive.IsReady)
+                {
+                    return new VolumeSpace(drive.TotalSize, drive.AvailableFreeSpace);
+                }
+            }
+        }
+        catch
+        {
+            // optional
+        }
+
+        return default;
+    }
+
     private static string FormatSize(long bytes)
     {
         string[] units = ["B", "KB", "MB", "GB", "TB", "PB"];

tests/Explorer.Application.Tests/BrowseServiceTests.cs

@@ -30,6 +30,8 @@ public class BrowseServiceTests
         var listing = await browse.ListThisPcAsync();
         var item = Assert.Single(listing.Items);
         Assert.Equal(1_073_741_824, item.SizeBytes);
+        Assert.Equal(250_000_000, item.FreeSpaceBytes);
+        Assert.Equal(1_000_000_000, item.CapacityBytes);
         Assert.True(item.IsDirectory);
     }
 
@@ -65,6 +67,7 @@ public class BrowseServiceTests
         var listing = await browse.ListAsync(@"C:\");
         var movies = Assert.Single(listing.Items, i => i.Name == "Movies");
         Assert.Equal(200, movies.SizeBytes);
+        Assert.Equal(250_000_000, movies.FreeSpaceBytes);
         var loose = Assert.Single(listing.Items, i => i.Name == "loose.txt");
         Assert.Equal(10, loose.SizeBytes);
     }
@@ -83,7 +86,9 @@ public class BrowseServiceTests
                     Kind = SourceKind.NtfsLocal,
                     RootPath = root,
                     DisplayName = display,
-                    VolumeSerial = 1
+                    VolumeSerial = 1,
+                    CapacityBytes = 1_000_000_000,
+                    FreeBytes = 250_000_000
                 }
             ]
         };
@@ -128,6 +133,11 @@ file sealed class BrowseVolumes : IVolumeService
         => Online.FirstOrDefault(v => path.StartsWith(v.RootPath.TrimEnd('\\'), StringComparison.OrdinalIgnoreCase));
     public bool IsPathReachable(string path)
         => Online.Any(v => path.StartsWith(v.RootPath.TrimEnd('\\'), StringComparison.OrdinalIgnoreCase));
+    public VolumeSpace GetSpace(string path)
+    {
+        var fp = Probe(path);
+        return new VolumeSpace(fp?.CapacityBytes, fp?.FreeBytes);
+    }
 }
 
 file sealed class BrowseEnv : IAppEnvironment

tests/Explorer.Application.Tests/SourceManagerTests.cs

@@ -136,6 +136,39 @@ public class SourceManagerTests
         Assert.Null(await store.Entries.GetRootAsync(source.Id));
     }
 
+    [Fact]
+    public async Task Stale_scanning_status_clears_when_no_job_is_running()
+    {
+        var db = Path.Combine(Path.GetTempPath(), "ew-app", Guid.NewGuid().ToString("N"), "index.db");
+        await using var store = new SqliteIndexStore(db, NullLogger<SqliteIndexStore>.Instance);
+        await store.OpenAsync();
+        var volumes = new FakeVolumes
+        {
+            Online =
+            [
+                new VolumeFingerprint
+                {
+                    Kind = SourceKind.NtfsLocal,
+                    RootPath = @"D:\",
+                    DisplayName = "Games (D:)",
+                    VolumeSerial = 42,
+                    CapacityBytes = 1000
+                }
+            ]
+        };
+        var env = new FakeEnv(Path.GetDirectoryName(db)!);
+        var mgr = new SourceManager(store, volumes, env, new SystemClock(), NullLogger<SourceManager>.Instance);
+        await mgr.InitializeAsync();
+        var source = (await store.Sources.GetAllAsync()).Single();
+        await store.Sources.UpdateStatusAsync(source.Id, SourceStatus.Scanning, null);
+        await store.Sources.UpdateIndexedAsync(source.Id, DateTimeOffset.UtcNow, 1);
+
+        await mgr.RefreshOnlineStateAsync();
+        source = (await store.Sources.GetAllAsync()).Single();
+        Assert.Equal(SourceStatus.Online, source.Status);
+        Assert.True(source.IsIndexed);
+    }
+
     [Fact]
     public async Task Forget_removes_unc_from_recents()
     {
@@ -166,6 +199,11 @@ file sealed class FakeVolumes : IVolumeService
             || v.RootPath.Equals(path, StringComparison.OrdinalIgnoreCase));
     }
     public bool IsPathReachable(string path) => Online.Any(v => path.StartsWith(v.RootPath.TrimEnd('\\'), StringComparison.OrdinalIgnoreCase));
+    public VolumeSpace GetSpace(string path)
+    {
+        var fp = Probe(path);
+        return new VolumeSpace(fp?.CapacityBytes, fp?.FreeBytes);
+    }
 }
 
 file sealed class FakeEnv : IAppEnvironment

tests/Explorer.Application.Tests/UiPreferencesStoreTests.cs

@@ -1,4 +1,5 @@
 using Explorer.Application;
+using Explorer.Domain;
 using Explorer.Domain.Abstractions;
 
 namespace Explorer.Application.Tests;
@@ -13,12 +14,14 @@ public class UiPreferencesStoreTests
             "theme=Light",
             "group-network=true",
             "group-cloud=false",
-            "index-archives=true"
+            "index-archives=true",
+            "auto-clear-queue=true"
         ]);
         Assert.Equal("Light", prefs.Theme);
         Assert.True(prefs.GroupNetworkPlaces);
         Assert.False(prefs.GroupCloudPlaces);
         Assert.True(prefs.IndexArchiveContents);
+        Assert.True(prefs.AutoClearQueueWhenDone);
     }
 
     [Fact]
@@ -29,6 +32,30 @@ public class UiPreferencesStoreTests
         Assert.False(prefs.GroupNetworkPlaces);
         Assert.False(prefs.GroupCloudPlaces);
         Assert.False(prefs.IndexArchiveContents);
+        Assert.True(prefs.ShowHiddenFiles);
+        Assert.False(prefs.ShowProtectedSystemLocations);
+        Assert.False(prefs.AutoClearQueueWhenDone);
+    }
+
+    [Fact]
+    public void Parse_reads_window_layout()
+    {
+        var prefs = UiPreferencesStore.Parse(
+        [
+            "theme=Dark",
+            "window-width=1440.5",
+            "window-height=900",
+            "window-left=12",
+            "window-top=24",
+            "window-maximized=true",
+            "tree-width=320"
+        ]);
+        Assert.Equal(1440.5, prefs.WindowWidth);
+        Assert.Equal(900, prefs.WindowHeight);
+        Assert.Equal(12, prefs.WindowLeft);
+        Assert.Equal(24, prefs.WindowTop);
+        Assert.True(prefs.WindowMaximized);
+        Assert.Equal(320, prefs.TreeWidth);
     }
 
     [Fact]
@@ -38,12 +65,18 @@ public class UiPreferencesStoreTests
         try
         {
             var store = new UiPreferencesStore(new PrefsEnv(dir));
-            store.Save(new UiPreferences("Light", true, false, true));
+            store.Save(new UiPreferences("Light", true, false, true, AutoClearQueueWhenDone: true, WindowWidth: 1100, WindowHeight: 720, TreeWidth: 300));
             var loaded = store.Load();
             Assert.Equal("Light", loaded.Theme);
             Assert.True(loaded.GroupNetworkPlaces);
             Assert.False(loaded.GroupCloudPlaces);
             Assert.True(loaded.IndexArchiveContents);
+            Assert.True(loaded.ShowHiddenFiles);
+            Assert.False(loaded.ShowProtectedSystemLocations);
+            Assert.True(loaded.AutoClearQueueWhenDone);
+            Assert.Equal(1100, loaded.WindowWidth);
+            Assert.Equal(720, loaded.WindowHeight);
+            Assert.Equal(300, loaded.TreeWidth);
         }
         finally
         {
@@ -52,6 +85,28 @@ public class UiPreferencesStoreTests
     }
 }
 
+public class LocationVisibilityTests
+{
+    [Fact]
+    public void Hides_protected_when_setting_is_off()
+    {
+        var prefs = UiPreferences.Default;
+        var svi = LocationClassifier.Classify(
+            @"C:\System Volume Information", "System Volume Information",
+            AttributeFlags.Directory | AttributeFlags.Hidden | AttributeFlags.System, true);
+        Assert.False(LocationVisibility.ShouldShow(svi, prefs));
+        Assert.True(LocationVisibility.ShouldShow(svi, prefs with { ShowProtectedSystemLocations = true }));
+    }
+
+    [Fact]
+    public void Unknown_size_when_access_denied_and_zero()
+    {
+        var info = new LocationInfo(true, true, true, true, false);
+        Assert.Equal(SizeKnowledge.Unknown, LocationVisibility.ResolveSizeKnowledge(info, true, 0, true));
+        Assert.Equal(SizeKnowledge.Partial, LocationVisibility.ResolveSizeKnowledge(info, true, 1000, true));
+    }
+}
+
 file sealed class PrefsEnv : IAppEnvironment
 {
     public PrefsEnv(string dir)

tests/Explorer.FileOperations.Tests/Explorer.FileOperations.Tests.csproj

@@ -4,6 +4,7 @@
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />

tests/Explorer.FileOperations.Tests/FileOperationTests.cs

@@ -38,9 +38,9 @@ file sealed class StubShell : IShellFileOperations
     public void Open(string path) { }
     public bool DeleteToRecycleBin(IReadOnlyList<string> paths, out string? error) => Delete(paths, true, out error);
     public bool Delete(IReadOnlyList<string> paths, bool recycle, out string? error) { error = "n/a"; return false; }
-    public bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error)
+    public bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
     { error = "n/a"; return false; }
-    public bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error)
+    public bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
     { error = "n/a"; return false; }
     public bool CreateShortcut(string targetPath, string shortcutPath, out string? error)
     { error = null; return true; }

tests/Explorer.FileOperations.Tests/TransferQueueTests.cs

@@ -0,0 +1,273 @@
+using Explorer.Domain;
+using Explorer.Domain.Abstractions;
+using Explorer.FileOperations;
+using Explorer.Storage.Sqlite;
+using Microsoft.Extensions.Logging.Abstractions;
+
+namespace Explorer.FileOperations.Tests;
+
+public class TransferQueueTests
+{
+    [Fact]
+    public async Task Copies_run_one_after_another()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        var firstStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        var releaseFirst = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        var secondStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        ctx.Shell.OnCopy = src =>
+        {
+            if (src.EndsWith("a.txt", StringComparison.OrdinalIgnoreCase))
+            {
+                firstStarted.TrySetResult();
+                releaseFirst.Task.GetAwaiter().GetResult();
+            }
+            else
+            {
+                secondStarted.TrySetResult();
+            }
+        };
+
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        await firstStarted.Task.WaitAsync(TimeSpan.FromSeconds(3));
+        Assert.False(secondStarted.Task.IsCompleted);
+        Assert.Equal(1, ctx.Shell.CopyCount);
+
+        releaseFirst.TrySetResult();
+        await secondStarted.Task.WaitAsync(TimeSpan.FromSeconds(3));
+        await WaitUntil(() => ctx.Queue.Snapshot().Count(j => j.Status == TransferStatus.Done) == 2);
+        Assert.Equal(new[] { ctx.File("a.txt"), ctx.File("b.txt") }, ctx.Shell.Copied);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    [Fact]
+    public async Task Pause_keeps_later_jobs_from_starting()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        var firstStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        var awaitingPause = true;
+        ctx.Shell.OnCopy = src =>
+        {
+            if (src.EndsWith("a.txt", StringComparison.OrdinalIgnoreCase) && awaitingPause)
+            {
+                firstStarted.TrySetResult();
+                WaitUntil(() => ctx.Shell.PauseRequested?.Invoke() == true, TimeSpan.FromSeconds(3))
+                    .GetAwaiter().GetResult();
+                awaitingPause = false;
+            }
+        };
+
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        await firstStarted.Task.WaitAsync(TimeSpan.FromSeconds(3));
+        ctx.Queue.PauseAll();
+        await WaitUntil(() => ctx.Queue.Snapshot()[0].Status == TransferStatus.Paused);
+        Assert.DoesNotContain(ctx.Shell.Copied, p => p.EndsWith("b.txt", StringComparison.OrdinalIgnoreCase));
+
+        ctx.Queue.ResumeAll();
+        await WaitUntil(() => ctx.Queue.Snapshot().All(j => j.Status == TransferStatus.Done));
+        Assert.Contains(ctx.Shell.Copied, p => p.EndsWith("b.txt", StringComparison.OrdinalIgnoreCase));
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    [Fact]
+    public async Task Remove_drops_a_queued_step()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        ctx.Queue.PauseAll();
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        var jobs = ctx.Queue.Snapshot();
+        Assert.Equal(2, jobs.Count);
+        ctx.Queue.Cancel(jobs[1].Id);
+        ctx.Queue.ResumeAll();
+        await WaitUntil(() => ctx.Queue.Snapshot().Any(j => j.Status == TransferStatus.Done));
+        Assert.Equal(new[] { ctx.File("a.txt") }, ctx.Shell.Copied);
+        Assert.DoesNotContain(ctx.Queue.Snapshot(), j => j.SourcePath.EndsWith("b.txt", StringComparison.OrdinalIgnoreCase)
+                                                         && j.Status is TransferStatus.Queued or TransferStatus.Running or TransferStatus.Done);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    [Fact]
+    public async Task Cancel_stops_the_running_copy()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        var firstStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        var releaseFirst = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously);
+        ctx.Shell.OnCopy = src =>
+        {
+            if (src.EndsWith("a.txt", StringComparison.OrdinalIgnoreCase))
+            {
+                firstStarted.TrySetResult();
+                releaseFirst.Task.GetAwaiter().GetResult();
+            }
+        };
+
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        await firstStarted.Task.WaitAsync(TimeSpan.FromSeconds(3));
+        var running = ctx.Queue.Snapshot().Single(j => j.SourcePath.EndsWith("a.txt", StringComparison.OrdinalIgnoreCase));
+        ctx.Queue.Cancel(running.Id);
+        releaseFirst.TrySetResult();
+        await WaitUntil(() => ctx.Shell.Copied.Contains(ctx.File("b.txt")));
+        Assert.DoesNotContain(ctx.Shell.Copied, p => p.EndsWith("a.txt", StringComparison.OrdinalIgnoreCase));
+        Assert.DoesNotContain(ctx.Queue.Snapshot(), j => j.Id == running.Id && j.Status == TransferStatus.Done);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    [Fact]
+    public async Task Pause_queued_job_skips_it()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        ctx.Queue.PauseAll();
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        var jobs = ctx.Queue.Snapshot();
+        ctx.Queue.Pause(jobs[0].Id);
+        ctx.Queue.ResumeAll();
+        await WaitUntil(() => ctx.Shell.Copied.Contains(ctx.File("b.txt")));
+        Assert.Equal(new[] { ctx.File("b.txt") }, ctx.Shell.Copied);
+        Assert.Equal(TransferStatus.Paused, ctx.Queue.Snapshot().First(j => j.Id == jobs[0].Id).Status);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    [Fact]
+    public async Task Reorder_changes_which_job_runs_first()
+    {
+        await using var ctx = await Harness.CreateAsync();
+        ctx.Queue.PauseAll();
+        await ctx.Queue.StartAsync(CancellationToken.None);
+        await ctx.Queue.EnqueueCopyAsync([ctx.File("a.txt"), ctx.File("b.txt")], ctx.Dest);
+        var jobs = ctx.Queue.Snapshot();
+        Assert.True(ctx.Queue.MoveUp(jobs[1].Id));
+        ctx.Queue.ResumeAll();
+        await WaitUntil(() => ctx.Queue.Snapshot().Count(j => j.Status == TransferStatus.Done) == 2);
+        Assert.Equal(new[] { ctx.File("b.txt"), ctx.File("a.txt") }, ctx.Shell.Copied);
+        await ctx.Queue.StopAsync(CancellationToken.None);
+    }
+
+    private static async Task WaitUntil(Func<bool> condition, TimeSpan? timeout = null)
+    {
+        var limit = DateTime.UtcNow + (timeout ?? TimeSpan.FromSeconds(4));
+        while (!condition())
+        {
+            if (DateTime.UtcNow > limit)
+            {
+                throw new TimeoutException("Condition was not met.");
+            }
+
+            await Task.Delay(20);
+        }
+    }
+
+    private sealed class Harness : IAsyncDisposable
+    {
+        public required TransferQueue Queue { get; init; }
+        public required GateShell Shell { get; init; }
+        public required SqliteIndexStore Store { get; init; }
+        public required string Dest { get; init; }
+        public required string Root { get; init; }
+
+        public string File(string name) => Path.Combine(Root, name);
+
+        public static async Task<Harness> CreateAsync()
+        {
+            var root = Path.Combine(Path.GetTempPath(), "ew-xfer", Guid.NewGuid().ToString("N"));
+            Directory.CreateDirectory(root);
+            var dest = Path.Combine(root, "dest");
+            Directory.CreateDirectory(dest);
+            System.IO.File.WriteAllText(Path.Combine(root, "a.txt"), "a");
+            System.IO.File.WriteAllText(Path.Combine(root, "b.txt"), "b");
+            var db = Path.Combine(root, "index.db");
+            var store = new SqliteIndexStore(db, NullLogger<SqliteIndexStore>.Instance);
+            await store.OpenAsync();
+            var shell = new GateShell();
+            var queue = new TransferQueue(shell, new DiskEnum(), store, NullLogger<TransferQueue>.Instance);
+            return new Harness
+            {
+                Queue = queue,
+                Shell = shell,
+                Store = store,
+                Dest = dest,
+                Root = root
+            };
+        }
+
+        public async ValueTask DisposeAsync()
+        {
+            await Store.DisposeAsync();
+            try { Directory.Delete(Root, true); } catch { /* ignore */ }
+        }
+    }
+}
+
+internal sealed class DiskEnum : IFileSystemEnumerator
+{
+    public IEnumerable<FileSystemItem> EnumerateChildren(string directoryPath) => EnumerateChildrenSafe(directoryPath, out _);
+
+    public IReadOnlyList<FileSystemItem> EnumerateChildrenSafe(string directoryPath, out string? error)
+    {
+        error = null;
+        return Directory.Exists(directoryPath)
+            ? Directory.GetFileSystemEntries(directoryPath).Select(GetRequired).ToList()
+            : [];
+    }
+
+    public FileSystemItem? GetItem(string path)
+        => System.IO.File.Exists(path) || Directory.Exists(path) ? GetRequired(path) : null;
+
+    private static FileSystemItem GetRequired(string path)
+    {
+        var isDir = Directory.Exists(path);
+        return new FileSystemItem
+        {
+            FullPath = path,
+            Name = Path.GetFileName(path),
+            IsDirectory = isDir,
+            SizeBytes = isDir ? 0 : new FileInfo(path).Length
+        };
+    }
+}
+
+internal sealed class GateShell : IShellFileOperations
+{
+    public int CopyCount { get; private set; }
+    public List<string> Copied { get; } = [];
+    public Action<string>? OnCopy { get; set; }
+    public Func<bool>? PauseRequested { get; private set; }
+
+    public void Open(string path) { }
+    public bool DeleteToRecycleBin(IReadOnlyList<string> paths, out string? error) => Delete(paths, true, out error);
+    public bool Delete(IReadOnlyList<string> paths, bool recycle, out string? error) { error = null; return true; }
+    public bool CreateShortcut(string targetPath, string shortcutPath, out string? error) { error = null; return true; }
+
+    public bool CopyFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
+    {
+        CopyCount++;
+        PauseRequested = pauseRequested;
+        progress?.Report(1);
+        OnCopy?.Invoke(source);
+        if (cancellationToken.IsCancellationRequested)
+        {
+            error = "Cancelled";
+            return false;
+        }
+
+        if (pauseRequested?.Invoke() == true)
+        {
+            error = "Paused";
+            return false;
+        }
+
+        Copied.Add(source);
+        Directory.CreateDirectory(Path.GetDirectoryName(destination)!);
+        System.IO.File.Copy(source, destination, overwrite);
+        progress?.Report(new FileInfo(source).Length);
+        error = null;
+        return true;
+    }
+
+    public bool MoveFileWithProgress(string source, string destination, bool overwrite, IProgress<long>? progress, CancellationToken cancellationToken, out string? error, Func<bool>? pauseRequested = null)
+        => CopyFileWithProgress(source, destination, overwrite, progress, cancellationToken, out error, pauseRequested);
+}