Item ordering

src/AppCommon/FileTime.App.Core.Abstraction/Models/ItemOrdering.cs

@@ -0,0 +1,9 @@
+namespace FileTime.App.Core.Models;
+
+public enum ItemOrdering
+{
+    Name,
+    NameDesc,
+    LastModifyDate,
+    LastModifyDateDesc,
+}

src/AppCommon/FileTime.App.Core.Abstraction/UserCommand/SearchCommand.cs

@@ -25,7 +25,7 @@ public class IdentifiableSearchCommand : SearchCommand, IIdentifiableUserCommand
     public static readonly IdentifiableSearchCommand SearchByNameContains =
         new(null, SearchType.NameContains, SearchByNameContainsCommandName);
 
-    public IdentifiableSearchCommand(
+    private IdentifiableSearchCommand(
         string? searchText,
         SearchType searchType,
         string commandId)

src/AppCommon/FileTime.App.Core.Abstraction/UserCommand/SortItemsCommand.cs

@@ -0,0 +1,33 @@
+using FileTime.App.Core.Models;
+
+namespace FileTime.App.Core.UserCommand;
+
+public class SortItemsCommand : IIdentifiableUserCommand
+{
+    public const string OrderByNameCommandName = "order_by_name";
+    public const string OrderByNameDescCommandName = "order_by_name_desc";
+    public const string OrderByDateCommandName = "order_by_date";
+    public const string OrderByDateDescCommandName = "order_by_date_desc";
+
+
+    public static readonly SortItemsCommand OrderByNameCommand =
+        new(OrderByNameCommandName, ItemOrdering.Name);
+
+    public static readonly SortItemsCommand OrderByNameDescCommand =
+        new(OrderByNameDescCommandName, ItemOrdering.NameDesc);
+
+    public static readonly SortItemsCommand OrderByDateCommand =
+        new(OrderByDateCommandName, ItemOrdering.LastModifyDate);
+
+    public static readonly SortItemsCommand OrderByDateDescCommand =
+        new(OrderByDateDescCommandName, ItemOrdering.LastModifyDateDesc);
+
+    private SortItemsCommand(string userCommandId, ItemOrdering ordering)
+    {
+        UserCommandID = userCommandId;
+        Ordering = ordering;
+    }
+
+    public string UserCommandID { get; }
+    public ItemOrdering Ordering { get; }
+}

src/AppCommon/FileTime.App.Core.Abstraction/ViewModels/ITabViewModel.cs

@@ -2,6 +2,7 @@
 using System.Collections.ObjectModel;
 using DeclarativeProperty;
 using DynamicData;
+using FileTime.App.Core.Models;
 using FileTime.Core.Models;
 using FileTime.Core.Services;
 using InitableService;
@@ -20,6 +21,7 @@ public interface ITabViewModel : IInitable<ITab, int>, IDisposable
     IObservable<IChangeSet<FullName>> MarkedItems { get; }
     IDeclarativeProperty<ObservableCollection<IItemViewModel>> SelectedsChildren { get; }
     IDeclarativeProperty<ObservableCollection<IItemViewModel>> ParentsChildren { get; }
+    DeclarativeProperty<ItemOrdering?> Ordering { get; }
 
     void ClearMarkedItems();
     void RemoveMarkedItem(FullName fullName);