Add CloseAll and CloseOthers to the tabbed object view (#161)

Author: LeftofZen

Gui/ViewModels/TabViewPageViewModel.cs

@@ -4,6 +4,7 @@
 using System.Linq;
 using System.Reactive;
 using System.Reactive.Linq;
+using System.Windows.Input;
 
 namespace OpenLoco.Gui.ViewModels
 {
@@ -29,10 +30,18 @@ public void AddDocument(ILocoFileViewModel model)
 
 		public ReactiveCommand<ILocoFileViewModel, Unit> RemoveTabCommand { get; }
 
+		[Reactive]
+		public ICommand CloseAllTabsCommand { get; set; }
+
+		[Reactive]
+		public ReactiveCommand<ILocoFileViewModel, Unit> CloseOtherTabsCommand { get; set; }
+
 		public TabViewPageViewModel()
 		{
 			Documents = [];
 			RemoveTabCommand = ReactiveCommand.Create<ILocoFileViewModel>(RemoveTab);
+			CloseAllTabsCommand = ReactiveCommand.Create(CloseAllTabs);
+			CloseOtherTabsCommand = ReactiveCommand.Create<ILocoFileViewModel>(CloseOtherTabs);
 		}
 
 		public async void ReloadAll()
@@ -47,5 +56,16 @@ void RemoveTab(ILocoFileViewModel tabToRemove)
 		{
 			_ = Documents.Remove(tabToRemove);
 		}
+
+		void CloseAllTabs()
+		{
+			Documents.Clear();
+		}
+
+		void CloseOtherTabs(ILocoFileViewModel tabToKeep)
+		{
+			Documents.Clear();
+			Documents.Add(tabToKeep);
+		}
 	}
 }

Gui/Views/MainWindow.axaml

@@ -823,6 +823,12 @@
 								<Button BorderThickness="0" FontSize="12" VerticalAlignment="Center" Command="{Binding $parent[TabControl].((vm:TabViewPageViewModel)DataContext).RemoveTabCommand}" CommandParameter="{Binding}">X</Button>
 							</StackPanel>
 						</TabItem.Header>
+						<TabItem.ContextMenu>
+							<ContextMenu>
+								<MenuItem Header="Close All Tabs" Command="{Binding $parent[TabControl].((vm:TabViewPageViewModel)DataContext).CloseAllTabsCommand}" />
+								<MenuItem Header="Close Other Tabs" Command="{Binding $parent[TabControl].((vm:TabViewPageViewModel)DataContext).CloseOtherTabsCommand}" CommandParameter="{Binding}" />
+							</ContextMenu>
+						</TabItem.ContextMenu>
 					</TabItem>
 				</DataTemplate>
 			</TabControl.ItemTemplate>