ui(manager): improve search bindings

ModpackUpdater.Apps.Manager/Ui/Models/DynamicDataView.cs

@@ -0,0 +1,38 @@
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Reactive.Linq;
+using System.Reactive.Subjects;
+using DynamicData;
+
+namespace ModpackUpdater.Apps.Manager.Ui.Models;
+
+public class DynamicDataView<T> : INotifyPropertyChanged where T : notnull
+{
+    public event PropertyChangedEventHandler? PropertyChanged;
+    
+    private string? searchText;
+    private readonly Subject<string?> searchTextSubject = new();
+
+    public SourceList<T> List { get; } = new();
+    public ReadOnlyObservableCollection<T> View { get; }
+    
+    public DynamicDataView(Func<string?, Func<T, bool>> predicate)
+    {
+        List.Connect()
+            .Filter(searchTextSubject/*.Throttle(TimeSpan.FromMilliseconds(250))*/.Select(predicate))
+            .Bind(out var view)
+            .Subscribe();
+        searchTextSubject?.OnNext(searchText);
+        View = view;
+    }
+
+    public string? SearchText
+    {
+        get => searchText;
+        set
+        {
+            searchText = value;
+            searchTextSubject.OnNext(value);
+        }
+    }
+}

ModpackUpdater.Apps.Manager/Ui/Models/MainWindow/MainWindowViewModel.cs

@@ -11,13 +11,13 @@ public class MainWindowViewModel : INotifyPropertyChanged
     public event PropertyChangedEventHandler? PropertyChanged;
 
     private ObservableCollection<MainWindowTreeNode>? currentTreeNodes;
-    private ObservableCollection<MainWindowGridRow>? currentGridRows;
     private MainWindowTreeNode? selectedTreeNode;
     private IWorkspace? currentWorkspace;
 
     public bool IsUpdate => selectedTreeNode is ActionSetTreeNode node && node.Infos is UpdateInfo;
     public ProgressInfos Progress { get; } = new();
     public MainWindowGridRow? SelectedGridRow { get; set; }
+    public DynamicDataView<MainWindowGridRow> CurrentGridRows { get; } = new(FilterGridRows);
 
     [AlsoNotifyFor(nameof(CurrentTreeNodes))]
     public IWorkspace? CurrentWorkspace
@@ -48,24 +48,23 @@ public class MainWindowViewModel : INotifyPropertyChanged
         }
     }
 
-    [AlsoNotifyFor(nameof(CurrentGridRows))]
     public MainWindowTreeNode? SelectedTreeNode
     {
         get => selectedTreeNode;
         set
         {
-            currentGridRows = null;
             selectedTreeNode = value;
+            CurrentGridRows.List.Edit(list =>
+            {
+                list.Clear();
+                if (CurrentWorkspace?.InstallInfos != null && selectedTreeNode is ActionSetTreeNode node)
+                    list.AddRange(node.Infos.Actions.Select(n => new MainWindowGridRow(n, CurrentWorkspace.InstallInfos)));
+            });
         }
     }
 
-    public ObservableCollection<MainWindowGridRow>? CurrentGridRows
+    private static Func<MainWindowGridRow, bool> FilterGridRows(string? searchText)
     {
-        get
-        {
-            if (currentGridRows == null && CurrentWorkspace?.InstallInfos != null && selectedTreeNode is ActionSetTreeNode node)
-                currentGridRows = [.. node.Infos.Actions.Select(n => new MainWindowGridRow(n, CurrentWorkspace.InstallInfos))];
-            return currentGridRows;
-        }
+        return n => string.IsNullOrWhiteSpace(searchText) || true;
     }
 }

ModpackUpdater.Apps.Manager/Ui/Models/UpdatesCollectorViewMode/UpdatesCollectorViewModel.cs

@@ -1,5 +1,9 @@
 using System.Collections.ObjectModel;
 using System.ComponentModel;
+using System.Reactive;
+using System.Reactive.Linq;
+using System.Reactive.Subjects;
+using DynamicData;
 using PropertyChanged;
 
 namespace ModpackUpdater.Apps.Manager.Ui.Models.UpdatesCollectorViewMode;
@@ -9,6 +13,10 @@ public class UpdatesCollectorViewModel : INotifyPropertyChanged
     public event PropertyChangedEventHandler? PropertyChanged;
 
     public ProgressInfos Progress { get; } = new();
-    public string? SearchText { get; set; }
-    public ObservableCollection<ModUpdateInfo> Updates { get; } = [];
+    public DynamicDataView<ModUpdateInfo> Updates { get; } = new(FilterUpdates);
+    
+    private static Func<ModUpdateInfo, bool> FilterUpdates(string? searchText)
+    {
+        return n => string.IsNullOrWhiteSpace(searchText) || (n.Origin.Name != null && n.Origin.Name.Contains(searchText, StringComparison.InvariantCultureIgnoreCase));
+    }
 }