Add about dialog.

RomRepoMgr/App.xaml

@@ -7,4 +7,11 @@
         <StyleInclude Source="avares://Avalonia.Themes.Default/DefaultTheme.xaml" />
         <StyleInclude Source="avares://Avalonia.Themes.Default/Accents/BaseLight.xaml" />
     </Application.Styles>
+    <NativeMenu.Menu>
+        <NativeMenu>
+            <NativeMenuItem Header="_About" Clicked="OnAboutClicked" />
+            <NativeMenuItem Header="_Preferences" Clicked="OnPreferencesClicked" />
+            <NativeMenuItem Header="_Quit" Clicked="OnQuitClicked" />
+        </NativeMenu>
+    </NativeMenu.Menu>
 </Application>

RomRepoMgr/App.xaml.cs

@@ -64,11 +64,41 @@ namespace RomRepoMgr
 
             // Create and show main window
             desktop.MainWindow             = new MainWindow();
-            desktop.MainWindow.DataContext = new MainWindowViewModel();
+            desktop.MainWindow.DataContext = new MainWindowViewModel(desktop.MainWindow as MainWindow);
             desktop.MainWindow.Show();
 
             // Now can close when all windows are closed
             desktop.ShutdownMode = ShutdownMode.OnLastWindowClose;
         }
+
+        void OnAboutClicked(object sender, EventArgs args)
+        {
+            if(!(ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) ||
+               !(desktop.MainWindow is MainWindow mainWindow)                            ||
+               !(mainWindow.DataContext is MainWindowViewModel mainWindowViewModel))
+                return;
+
+            mainWindowViewModel.ExecuteAboutCommand();
+        }
+
+        void OnQuitClicked(object sender, EventArgs args)
+        {
+            if(!(ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) ||
+               !(desktop.MainWindow is MainWindow mainWindow)                            ||
+               !(mainWindow.DataContext is MainWindowViewModel mainWindowViewModel))
+                return;
+
+            mainWindowViewModel.ExecuteExitCommand();
+        }
+
+        void OnPreferencesClicked(object sender, EventArgs args)
+        {
+            if(!(ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) ||
+               !(desktop.MainWindow is MainWindow mainWindow)                            ||
+               !(mainWindow.DataContext is MainWindowViewModel mainWindowViewModel))
+                return;
+
+            mainWindowViewModel.ExecuteSettingsCommand();
+        }
     }
 }

RomRepoMgr/Models/AssemblyModel.cs

@@ -0,0 +1,33 @@
+/******************************************************************************
+// RomRepoMgr - ROM repository manager
+// ----------------------------------------------------------------------------
+//
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2020 Natalia Portillo
+*******************************************************************************/
+
+namespace RomRepoMgr.Models
+{
+    public sealed class AssemblyModel
+    {
+        public string Name    { get; set; }
+        public string Version { get; set; }
+    }
+}

RomRepoMgr/RomRepoMgr.csproj

@@ -15,6 +15,7 @@
     </ItemGroup>
     <ItemGroup>
         <PackageReference Include="Avalonia" Version="0.10.0-preview3" />
+        <PackageReference Include="Avalonia.Controls.DataGrid" Version="0.10.0-preview3" />
         <PackageReference Include="Avalonia.Desktop" Version="0.10.0-preview3" />
         <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.0-preview3" />
         <PackageReference Include="Svg.Skia.Avalonia" Version="0.10.0-preview3" />

RomRepoMgr/ViewModels/AboutViewModel.cs

@@ -0,0 +1,171 @@
+/******************************************************************************
+// RomRepoMgr - ROM repository manager
+// ----------------------------------------------------------------------------
+//
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2020 Natalia Portillo
+*******************************************************************************/
+
+using System;
+using System.Collections.ObjectModel;
+using System.Diagnostics;
+using System.Linq;
+using System.Reactive;
+using System.Reflection;
+using System.Threading.Tasks;
+using JetBrains.Annotations;
+using Microsoft.DotNet.PlatformAbstractions;
+using ReactiveUI;
+using RomRepoMgr.Models;
+using RomRepoMgr.Views;
+
+namespace RomRepoMgr.ViewModels
+{
+    public sealed class AboutViewModel : ViewModelBase
+    {
+        readonly About _view;
+        string         _versionText;
+
+        public AboutViewModel(About view)
+        {
+            _view = view;
+
+            VersionText =
+                (Attribute.GetCustomAttribute(typeof(App).Assembly, typeof(AssemblyInformationalVersionAttribute)) as
+                     AssemblyInformationalVersionAttribute)?.InformationalVersion;
+
+            WebsiteCommand = ReactiveCommand.Create(ExecuteWebsiteCommand);
+            LicenseCommand = ReactiveCommand.Create(ExecuteLicenseCommand);
+            CloseCommand   = ReactiveCommand.Create(ExecuteCloseCommand);
+
+            Assemblies = new ObservableCollection<AssemblyModel>();
+
+            // TODO: They do not load in time
+            Task.Run(() =>
+            {
+                foreach(Assembly assembly in AppDomain.CurrentDomain.GetAssemblies().OrderBy(a => a.FullName))
+                {
+                    string name = assembly.GetName().Name;
+
+                    string version =
+                        (Attribute.GetCustomAttribute(assembly, typeof(AssemblyInformationalVersionAttribute)) as
+                             AssemblyInformationalVersionAttribute)?.InformationalVersion;
+
+                    if(name is null ||
+                       version is null)
+                        continue;
+
+                    Assemblies.Add(new AssemblyModel
+                    {
+                        Name    = name,
+                        Version = version
+                    });
+                }
+            });
+        }
+
+        [NotNull]
+        public string AboutLabel => "About";
+        [NotNull]
+        public string LibrariesLabel => "Libraries";
+        [NotNull]
+        public string AuthorsLabel => "Authors";
+        [NotNull]
+        public string Title => "About ROM Repository Manager";
+        [NotNull]
+        public string SoftwareName => "RomRepoMgr";
+        [NotNull]
+        public string SuiteName => "ROM Repository Manager";
+        [NotNull]
+        public string Copyright => "© 2020 Natalia Portillo";
+        [NotNull]
+        public string Website => "https://www.claunia.com";
+        [NotNull]
+        public string License => "License: GNU General Public License Version 3";
+        [NotNull]
+        public string CloseLabel => "Close";
+        [NotNull]
+        public string AssembliesLibraryText => "Library";
+        [NotNull]
+        public string AssembliesVersionText => "Version";
+        [NotNull]
+        public string Authors => @"Developers:
+    Natalia Portillo
+";
+        public ReactiveCommand<Unit, Unit>         WebsiteCommand { get; }
+        public ReactiveCommand<Unit, Unit>         LicenseCommand { get; }
+        public ReactiveCommand<Unit, Unit>         CloseCommand   { get; }
+        public ObservableCollection<AssemblyModel> Assemblies     { get; }
+
+        public string VersionText
+        {
+            get => _versionText;
+            set => this.RaiseAndSetIfChanged(ref _versionText, value);
+        }
+
+        void ExecuteWebsiteCommand()
+        {
+            var process = new Process
+            {
+                StartInfo =
+                {
+                    UseShellExecute = false,
+                    CreateNoWindow  = true,
+                    Arguments       = "https://www.claunia.com"
+                }
+            };
+
+            switch(RuntimeEnvironment.OperatingSystemPlatform)
+            {
+                case Platform.Unknown: return;
+                case Platform.Windows:
+                    process.StartInfo.FileName  = "cmd";
+                    process.StartInfo.Arguments = $"/c start {process.StartInfo.Arguments.Replace("&", "^&")}";
+
+                    break;
+                case Platform.FreeBSD:
+                case Platform.Linux:
+                    process.StartInfo.FileName = "xdg-open";
+
+                    break;
+                case Platform.Darwin:
+                    process.StartInfo.FileName = "open";
+
+                    break;
+                default:
+                    if(Debugger.IsAttached)
+                        throw new ArgumentOutOfRangeException();
+
+                    return;
+            }
+
+            process.Start();
+        }
+
+        void ExecuteLicenseCommand()
+        {
+            /*            var dialog = new LicenseDialog();
+                        dialog.DataContext = new LicenseViewModel(dialog);
+                        dialog.ShowDialog(_view);*/
+        }
+
+        void ExecuteCloseCommand() => _view.Close();
+    }
+}

RomRepoMgr/ViewModels/MainWindowViewModel.cs

@@ -23,10 +23,51 @@
 // Copyright © 2020 Natalia Portillo
 *******************************************************************************/
 
+using System.Reactive;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using ReactiveUI;
+using RomRepoMgr.Views;
+
 namespace RomRepoMgr.ViewModels
 {
     public class MainWindowViewModel : ViewModelBase
     {
+        readonly MainWindow _view;
+
+        public MainWindowViewModel(MainWindow view)
+        {
+            _view           = view;
+            ExitCommand     = ReactiveCommand.Create(ExecuteExitCommand);
+            SettingsCommand = ReactiveCommand.Create(ExecuteSettingsCommand);
+            AboutCommand    = ReactiveCommand.Create(ExecuteAboutCommand);
+        }
+
         public string Greeting => "Hello World!";
+        public bool NativeMenuSupported =>
+            NativeMenu.GetIsNativeMenuExported((Application.Current.ApplicationLifetime as
+                                                    IClassicDesktopStyleApplicationLifetime)?.MainWindow);
+
+        public ReactiveCommand<Unit, Unit> AboutCommand    { get; }
+        public ReactiveCommand<Unit, Unit> ExitCommand     { get; }
+        public ReactiveCommand<Unit, Unit> SettingsCommand { get; }
+
+        internal async void ExecuteSettingsCommand()
+        {
+            /*var dialog = new SettingsDialog();
+            dialog.DataContext = new SettingsViewModel(dialog, false);
+            await dialog.ShowDialog(_view);*/
+        }
+
+        internal void ExecuteExitCommand() =>
+            (Application.Current.ApplicationLifetime as ClassicDesktopStyleApplicationLifetime)?.Shutdown();
+
+        internal void ExecuteAboutCommand()
+        {
+            var dialog = new About();
+            dialog.DataContext = new AboutViewModel(dialog);
+            dialog.ShowDialog(_view);
+        }
     }
 }

RomRepoMgr/Views/About.xaml

@@ -0,0 +1,110 @@
+<!--
+// /***************************************************************************
+// RomRepoMgr - ROM repository manager
+// ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
+//
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// ‐‐[ License ] ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General public License for more details.
+//
+//     You should have received a copy of the GNU General public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
+// Copyright © 2020 Natalia Portillo
+// ****************************************************************************/
+-->
+<Window xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:vm="clr-namespace:RomRepoMgr.ViewModels;assembly=RomRepoMgr" mc:Ignorable="d" d:DesignWidth="800"
+        d:DesignHeight="450" Width="480" Height="320" x:Class="RomRepoMgr.Views.About" Icon="/Assets/avalonia-logo.ico"
+        CanResize="False" Title="{Binding Title}">
+    <Design.DataContext>
+        <vm:AboutViewModel />
+    </Design.DataContext>
+    <Border Padding="15">
+        <Grid>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="Auto" /> <RowDefinition Height="*" /> <RowDefinition Height="Auto" />
+            </Grid.RowDefinitions>
+            <Grid Grid.Row="0">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" />
+                </Grid.ColumnDefinitions>
+                <Border Grid.Column="0" BorderThickness="5">
+                    <Image Source="/Assets/avalonia-logo.ico" Width="48" Height="48" />
+                </Border>
+                <Grid Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center">
+                    <Grid.RowDefinitions>
+                        <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" />
+                    </Grid.RowDefinitions>
+                    <TextBlock Grid.Row="0" Text="{Binding SoftwareName}" HorizontalAlignment="Left"
+                               VerticalAlignment="Center" FontSize="16" FontWeight="Bold" />
+                    <TextBlock Grid.Row="1" Text="{Binding VersionText}" HorizontalAlignment="Left"
+                               VerticalAlignment="Center" />
+                </Grid>
+            </Grid>
+            <TabControl Grid.Row="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
+                <TabItem>
+                    <TabItem.Header>
+                        <TextBlock Text="{Binding AboutLabel}" />
+                    </TabItem.Header>
+                    <Grid>
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" /> <RowDefinition Height="12" />
+                            <RowDefinition Height="Auto" /> <RowDefinition Height="12" />
+                            <RowDefinition Height="Auto" /> <RowDefinition Height="Auto" />
+                            <RowDefinition Height="*" />
+                        </Grid.RowDefinitions>
+                        <TextBlock Grid.Row="0" Text="{Binding SuiteName}" />
+                        <TextBlock Grid.Row="2" Text="{Binding Copyright}" />
+                        <Button Grid.Row="4" BorderThickness="0" Background="Transparent" HorizontalAlignment="Left"
+                                VerticalAlignment="Center" Padding="0" Command="{Binding WebsiteCommand}">
+                            <!-- TODO: TextDecorations="Underline" in next Avalonia UI version -->
+                            <TextBlock Text="{Binding Website}" Foreground="Blue" />
+                        </Button>
+                        <Button Grid.Row="5" BorderThickness="0" Background="Transparent" HorizontalAlignment="Left"
+                                VerticalAlignment="Center" Padding="0" Command="{Binding LicenseCommand}">
+                            <!-- TODO: TextDecorations="Underline" in next Avalonia UI version -->
+                            <TextBlock Text="{Binding License}" Foreground="Blue" />
+                        </Button>
+                    </Grid>
+                </TabItem>
+                <TabItem>
+                    <TabItem.Header>
+                        <TextBlock Text="{Binding LibrariesLabel}" />
+                    </TabItem.Header>
+                    <DataGrid Items="{Binding Assemblies}" HorizontalScrollBarVisibility="Visible">
+                        <DataGrid.Columns>
+                            <DataGridTextColumn Header="Library" Binding="{Binding Name}" Width="Auto"
+                                                IsReadOnly="True" />
+                            <DataGridTextColumn Header="Version" Binding="{Binding Version}" Width="Auto"
+                                                IsReadOnly="True" />
+                        </DataGrid.Columns>
+                    </DataGrid>
+                </TabItem>
+                <TabItem>
+                    <TabItem.Header>
+                        <TextBlock Text="{Binding AuthorsLabel}" />
+                    </TabItem.Header>
+                    <TextBox IsReadOnly="True" Text="{Binding Authors}" />
+                </TabItem>
+            </TabControl>
+            <Button Grid.Row="2" HorizontalAlignment="Right" VerticalAlignment="Center"
+                    Command="{Binding CloseCommand}">
+                <TextBlock Text="{Binding CloseLabel}" />
+            </Button>
+        </Grid>
+    </Border>
+</Window>

RomRepoMgr/Views/About.xaml.cs

@@ -0,0 +1,37 @@
+/******************************************************************************
+// RomRepoMgr - ROM repository manager
+// ----------------------------------------------------------------------------
+//
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2020 Natalia Portillo
+*******************************************************************************/
+
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace RomRepoMgr.Views
+{
+    public sealed class About : Window
+    {
+        public About() => InitializeComponent();
+
+        void InitializeComponent() => AvaloniaXamlLoader.Load(this);
+    }
+}

RomRepoMgr/Views/MainWindow.xaml

@@ -6,5 +6,19 @@
     <Design.DataContext>
         <vm:MainWindowViewModel />
     </Design.DataContext>
+    <DockPanel>
+        <Menu DockPanel.Dock="Top">
+            <MenuItem Header="_File">
+                <MenuItem Header="_Settings" IsVisible="{Binding !NativeMenuSupported}"
+                          Command="{Binding SettingsCommand}" />
+                <Separator />
+                <MenuItem Header="E_xit" IsVisible="{Binding !NativeMenuSupported}" Command="{Binding ExitCommand}" />
+            </MenuItem>
+            <MenuItem Header="_Help">
+                <MenuItem Header="_About" Name="AboutMenuItem" IsVisible="{Binding !NativeMenuSupported}"
+                          Command="{Binding AboutCommand}" />
+            </MenuItem>
+        </Menu>
         <TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center" />
+    </DockPanel>
 </Window>