コメント投稿パネルの選択肢を接続状態のコネクションだけにした

Author: ryu-s

MultiCommentViewer/ViewModels/MainViewModel.cs

@@ -1043,6 +1043,7 @@ private void Connection_MetadataReceived(object sender, IMetadata e)
         public ObservableCollection<PluginMenuItemViewModel> PluginMenuItemCollection { get; } = new ObservableCollection<PluginMenuItemViewModel>();
         private readonly ObservableCollection<IMcvCommentViewModel> _comments = new ObservableCollection<IMcvCommentViewModel>();
         public ObservableCollection<ConnectionViewModel> Connections { get; } = new ObservableCollection<ConnectionViewModel>();
+        public ICollectionViewLiveShaping ConnectedConnections { get; }
 
         private ConnectionViewModel _selectedConnection;
         public ConnectionViewModel SelectedConnection
@@ -1705,6 +1706,28 @@ public MainViewModel(IIo io, ILogger logger, IOptions options, ISitePluginLoader
             _browserLoader = browserLoader;
 
             Comments = CollectionViewSource.GetDefaultView(_comments);
+            //ConnectedConnections = CollectionViewSource.GetDefaultView(Connections);
+            //ConnectedConnections.Filter = x =>
+            //{
+            //    return x is ConnectionViewModel connVm && connVm.CanDisconnect;
+            //};
+            var view = new CollectionViewSource { Source = Connections }.View;
+            view.Filter = obj =>
+            {
+                if (!(obj is ConnectionViewModel connVm))
+                {
+                    return false;
+                }
+                return connVm.CanDisconnect;
+                //return true;
+            };
+            ConnectedConnections = view as ICollectionViewLiveShaping;
+            if (ConnectedConnections.CanChangeLiveFiltering)
+            {
+                //ConnectedConnections.LiveFilteringProperties.Add("CanDisconnect");
+                ConnectedConnections.LiveFilteringProperties.Add(nameof(ConnectionViewModel.CanDisconnect));
+                ConnectedConnections.IsLiveFiltering = true;
+            }
 
             MainViewContentRenderedCommand = new RelayCommand(ContentRendered);
             MainViewClosingCommand = new RelayCommand<CancelEventArgs>(Closing);

MultiCommentViewer/Views/MainWindow.xaml

@@ -494,7 +494,7 @@
                 <ColumnDefinition Width="100" />
                 <ColumnDefinition />
             </Grid.ColumnDefinitions>
-            <ComboBox ItemsSource="{Binding Connections}" SelectedValue="{Binding SelectedConnection}" DisplayMemberPath="Name" Grid.Column="0" Margin="10" Height="30" />
+            <ComboBox ItemsSource="{Binding ConnectedConnections}" SelectedValue="{Binding SelectedConnection}" DisplayMemberPath="Name" Grid.Column="0" Margin="10" Height="30" />
             <Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch" x:Name="PostCommentPanelPlaceHolder" Grid.Column="2" />
         </Grid>
     </Grid>