DesignPreview WIP

src/GuiApp/Avalonia/FileTime.GuiApp.DesignPreview/Services/TabPreview.cs

@@ -0,0 +1,49 @@
+using System.Reactive.Linq;
+using System.Reactive.Subjects;
+using DynamicData;
+using FileTime.Core.Models;
+using FileTime.Core.Services;
+
+namespace FileTime.GuiApp.DesignPreview.Services;
+
+public class TabPreview : ITab
+{
+    public TabPreview()
+    {
+        var currentLocation = new BehaviorSubject<IContainer?>(ItemPreview.CurrentContainer);
+        CurrentLocation = currentLocation.AsObservable();
+
+        var currentItems = new SourceCache<IItem, string>(i => i.Name);
+        var items = GenerateItems();
+        currentItems.AddOrUpdate(items);
+        CurrentSelectedItemPreview = items[0];
+        CurrentItems = new BehaviorSubject<IObservable<IChangeSet<IItem, string>>>(currentItems.Connect());
+        CurrentSelectedItem = new BehaviorSubject<AbsolutePath?>(new AbsolutePath(null!, CurrentSelectedItemPreview));
+    }
+    
+    public IItem CurrentSelectedItemPreview { get; }
+
+    private static List<IItem> GenerateItems()
+        => Enumerable.Range(1, 10).Select(i => (IItem)ItemPreview.GenerateElement("Element" + i)).ToList();
+
+    public IObservable<IContainer?> CurrentLocation { get; }
+    public IObservable<AbsolutePath?> CurrentSelectedItem { get; }
+    public IObservable<IObservable<IChangeSet<IItem, string>>?> CurrentItems { get; }
+    public FullName? LastDeepestSelectedPath { get; }
+    public void SetCurrentLocation(IContainer newLocation) => throw new NotImplementedException();
+
+    public void AddItemFilter(ItemFilter filter) => throw new NotImplementedException();
+
+    public void RemoveItemFilter(ItemFilter filter) => throw new NotImplementedException();
+
+    public void RemoveItemFilter(string name) => throw new NotImplementedException();
+
+    public void SetSelectedItem(AbsolutePath newSelectedItem) => throw new NotImplementedException();
+
+    public void ForceSetCurrentLocation(IContainer newLocation) => throw new NotImplementedException();
+    public void Init(IContainer obj1) => throw new NotImplementedException();
+
+    public void Dispose()
+    {
+    }
+}