Packages: single Install / Manage action per row

An uninstalled package in the Available list now shows a single Install button;
an installed one shows a single Manage button that opens a menu with Update,
Choose version, and Remove. The menu is built in code-behind and invokes the
view-model commands directly, so it doesn't depend on binding resolution inside
the flyout popup.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: dooly123

src/BasisPM.App/Localization/Languages/en.json

@@ -522,6 +522,10 @@
       "key": "packages.button.listView",
       "value": "List view"
     },
+    {
+      "key": "packages.button.manage",
+      "value": "Manage"
+    },
     {
       "key": "packages.button.refresh",
       "value": "Refresh"

src/BasisPM.App/Views/PackagesView.axaml

@@ -106,18 +106,13 @@
                                                     </StackPanel>
                                                 </StackPanel>
                                                 <StackPanel Grid.Column="2" Width="160" Spacing="8" VerticalAlignment="Center">
-                                                    <Button Content="{Binding ButtonLabel}" Classes="primary" HorizontalAlignment="Stretch"
+                                                    <!-- Not installed: a single Install. Installed: a Manage menu. -->
+                                                    <Button Content="{loc:Tr packages.button.install}" Classes="primary" HorizontalAlignment="Stretch"
+                                                            IsVisible="{Binding !IsInstalled}"
                                                             Command="{Binding #Root.((vm:PackagesViewModel)DataContext).InstallCommand}"
                                                             CommandParameter="{Binding Entry}"/>
-                                                    <Button Content="{loc:Tr packages.button.chooseVersion}" HorizontalAlignment="Stretch" FontSize="11" Padding="10,6"
-                                                            IsVisible="{Binding HasGit}"
-                                                            ToolTip.Tip="{loc:Tr packages.tooltip.chooseVersion}"
-                                                            Command="{Binding #Root.((vm:PackagesViewModel)DataContext).ChooseVersionCommand}"
-                                                            CommandParameter="{Binding Entry}"/>
-                                                    <Button Content="{loc:Tr packages.button.remove}" Classes="danger" HorizontalAlignment="Stretch" FontSize="11" Padding="10,6"
-                                                            IsVisible="{Binding IsInstalled}"
-                                                            Command="{Binding #Root.((vm:PackagesViewModel)DataContext).RemoveCommand}"
-                                                            CommandParameter="{Binding Entry}"/>
+                                                    <Button Content="{loc:Tr packages.button.manage}" Classes="primary" HorizontalAlignment="Stretch"
+                                                            IsVisible="{Binding IsInstalled}" Click="OnManageClick"/>
                                                 </StackPanel>
                                             </Grid>
                                         </Border>
@@ -164,18 +159,12 @@
                                                             Command="{Binding #Root.((vm:PackagesViewModel)DataContext).OpenLinkCommand}"
                                                             CommandParameter="{Binding Link}"/>
                                                 </StackPanel>
-                                                <Button Content="{Binding ButtonLabel}" Classes="primary" HorizontalAlignment="Stretch"
+                                                <Button Content="{loc:Tr packages.button.install}" Classes="primary" HorizontalAlignment="Stretch"
+                                                        IsVisible="{Binding !IsInstalled}"
                                                         Command="{Binding #Root.((vm:PackagesViewModel)DataContext).InstallCommand}"
                                                         CommandParameter="{Binding Entry}"/>
-                                                <Button Content="{loc:Tr packages.button.chooseVersion}" HorizontalAlignment="Stretch" FontSize="11" Padding="10,6"
-                                                        IsVisible="{Binding HasGit}"
-                                                        ToolTip.Tip="{loc:Tr packages.tooltip.chooseVersion}"
-                                                        Command="{Binding #Root.((vm:PackagesViewModel)DataContext).ChooseVersionCommand}"
-                                                        CommandParameter="{Binding Entry}"/>
-                                                <Button Content="{loc:Tr packages.button.remove}" Classes="danger" HorizontalAlignment="Stretch" FontSize="11" Padding="10,6"
-                                                        IsVisible="{Binding IsInstalled}"
-                                                        Command="{Binding #Root.((vm:PackagesViewModel)DataContext).RemoveCommand}"
-                                                        CommandParameter="{Binding Entry}"/>
+                                                <Button Content="{loc:Tr packages.button.manage}" Classes="primary" HorizontalAlignment="Stretch"
+                                                        IsVisible="{Binding IsInstalled}" Click="OnManageClick"/>
                                             </StackPanel>
                                         </Border>
                                     </DataTemplate>

src/BasisPM.App/Views/PackagesView.axaml.cs

@@ -1,8 +1,40 @@
 using Avalonia.Controls;
+using Avalonia.Interactivity;
+using BasisPM.App.Localization;
+using BasisPM.App.ViewModels;
 
 namespace BasisPM.App.Views;
 
 public partial class PackagesView : UserControl
 {
     public PackagesView() => InitializeComponent();
+
+    // The "Manage" menu for an installed package is built in code and its commands invoked
+    // directly, so it doesn't rely on binding resolution inside the flyout popup.
+    private void OnManageClick(object? sender, RoutedEventArgs e)
+    {
+        if (sender is not Control control || control.DataContext is not PackageRow row) return;
+        if (DataContext is not PackagesViewModel vm) return;
+
+        var flyout = new MenuFlyout();
+
+        var update = new MenuItem { Header = L.Tr("packages.button.update") };
+        update.Click += (_, _) => vm.InstallCommand.Execute(row.Entry);
+        flyout.Items.Add(update);
+
+        if (row.HasGit)
+        {
+            var choose = new MenuItem { Header = L.Tr("packages.button.chooseVersion") };
+            choose.Click += (_, _) => vm.ChooseVersionCommand.Execute(row.Entry);
+            flyout.Items.Add(choose);
+        }
+
+        flyout.Items.Add(new Separator());
+
+        var remove = new MenuItem { Header = L.Tr("packages.button.remove") };
+        remove.Click += (_, _) => vm.RemoveCommand.Execute(row.Entry);
+        flyout.Items.Add(remove);
+
+        flyout.ShowAt(control);
+    }
 }