Plugins - Added platform support

Settings - Fixed updating issues in plugin tab
UI - Don't initialize in design mode
UI - Move ReactiveCoreWindow to Artemis.Shared
Window service - Return window created by ShowWindow
Window service - Added CreateOpenFileDialog API

src/Artemis.UI.Shared/Artemis.UI.Shared.csproj

@@ -3,8 +3,8 @@
         <OutputType>Library</OutputType>
         <TargetFramework>net6.0</TargetFramework>
         <Nullable>enable</Nullable>
-        <ApplicationIcon/>
-        <StartupObject/>
+        <ApplicationIcon />
+        <StartupObject />
         <OutputPath>bin\</OutputPath>
         <PlatformTarget>x64</PlatformTarget>
         <Platforms>x64</Platforms>
@@ -15,20 +15,20 @@
     <ItemGroup>
     </ItemGroup>
     <ItemGroup>
-        <PackageReference Include="Avalonia" Version="0.10.15"/>
-        <PackageReference Include="Avalonia.Diagnostics" Version="0.10.15"/>
-        <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.15"/>
-        <PackageReference Include="Avalonia.Xaml.Behaviors" Version="0.10.14"/>
-        <PackageReference Include="DynamicData" Version="7.8.6"/>
-        <PackageReference Include="FluentAvaloniaUI" Version="1.4.1"/>
-        <PackageReference Include="Material.Icons.Avalonia" Version="1.0.2"/>
-        <PackageReference Include="ReactiveUI" Version="17.1.50"/>
-        <PackageReference Include="ReactiveUI.Validation" Version="2.2.1"/>
-        <PackageReference Include="RGB.NET.Core" Version="1.0.0-prerelease.32"/>
-        <PackageReference Include="SkiaSharp" Version="2.88.1-preview.1"/>
+        <PackageReference Include="Avalonia" Version="0.10.15" />
+        <PackageReference Include="Avalonia.Diagnostics" Version="0.10.15" />
+        <PackageReference Include="Avalonia.ReactiveUI" Version="0.10.15" />
+        <PackageReference Include="Avalonia.Xaml.Behaviors" Version="0.10.14" />
+        <PackageReference Include="DynamicData" Version="7.8.6" />
+        <PackageReference Include="FluentAvaloniaUI" Version="1.4.1" />
+        <PackageReference Include="Material.Icons.Avalonia" Version="1.0.2" />
+        <PackageReference Include="ReactiveUI" Version="17.1.50" />
+        <PackageReference Include="ReactiveUI.Validation" Version="2.2.1" />
+        <PackageReference Include="RGB.NET.Core" Version="1.0.0-prerelease.32" />
+        <PackageReference Include="SkiaSharp" Version="2.88.1-preview.1" />
     </ItemGroup>
     <ItemGroup>
-        <ProjectReference Include="..\Artemis.Core\Artemis.Core.csproj"/>
+        <ProjectReference Include="..\Artemis.Core\Artemis.Core.csproj" />
     </ItemGroup>
     <ItemGroup>
         <Compile Update="Controls\HotkeyBox.axaml.cs">

src/Artemis.UI.Shared/ReactiveCoreWindow.cs

@@ -0,0 +1,63 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using FluentAvalonia.UI.Controls;
+using ReactiveUI;
+
+namespace Artemis.UI.Shared
+{
+    /// <summary>
+    ///     A ReactiveUI <see cref="Window" /> that implements the <see cref="IViewFor{TViewModel}" /> interface and will
+    ///     activate your ViewModel automatically if the view model implements <see cref="IActivatableViewModel" />. When
+    ///     the DataContext property changes, this class will update the ViewModel property with the new DataContext value,
+    ///     and vice versa.
+    /// </summary>
+    /// <typeparam name="TViewModel">ViewModel type.</typeparam>
+    public class ReactiveCoreWindow<TViewModel> : CoreWindow, IViewFor<TViewModel> where TViewModel : class
+    {
+        public static readonly StyledProperty<TViewModel?> ViewModelProperty = AvaloniaProperty
+            .Register<ReactiveCoreWindow<TViewModel>, TViewModel?>(nameof(ViewModel));
+
+        /// <summary>
+        ///     Initializes a new instance of the <see cref="ReactiveCoreWindow{TViewModel}" /> class.
+        /// </summary>
+        public ReactiveCoreWindow()
+        {
+            // This WhenActivated block calls ViewModel's WhenActivated
+            // block if the ViewModel implements IActivatableViewModel.
+            this.WhenActivated(disposables => { });
+            this.GetObservable(DataContextProperty).Subscribe(OnDataContextChanged);
+            this.GetObservable(ViewModelProperty).Subscribe(OnViewModelChanged);
+        }
+
+        private void OnDataContextChanged(object? value)
+        {
+            if (value is TViewModel viewModel)
+                ViewModel = viewModel;
+            else
+                ViewModel = null;
+        }
+
+        private void OnViewModelChanged(object? value)
+        {
+            if (value == null)
+                ClearValue(DataContextProperty);
+            else if (DataContext != value) DataContext = value;
+        }
+
+        /// <summary>
+        ///     The ViewModel.
+        /// </summary>
+        public TViewModel? ViewModel
+        {
+            get => GetValue(ViewModelProperty);
+            set => SetValue(ViewModelProperty, value);
+        }
+
+        object? IViewFor.ViewModel
+        {
+            get => ViewModel;
+            set => ViewModel = (TViewModel?) value;
+        }
+    }
+}

src/Artemis.UI.Shared/Services/Builders/OpenFolderDialogBuilder.cs

@@ -0,0 +1,54 @@
+using System.Threading.Tasks;
+using Avalonia.Controls;
+
+namespace Artemis.UI.Shared.Services.Builders;
+
+/// <summary>
+///     Represents a builder that can create a <see cref="OpenFolderDialog" />.
+/// </summary>
+public class OpenFolderDialogBuilder
+{
+    private readonly OpenFolderDialog _openFolderDialog;
+    private readonly Window _parent;
+
+    /// <summary>
+    ///     Creates a new instance of the <see cref="OpenFolderDialogBuilder" /> class.
+    /// </summary>
+    /// <param name="parent">The parent window that will host the dialog.</param>
+    internal OpenFolderDialogBuilder(Window parent)
+    {
+        _parent = parent;
+        _openFolderDialog = new OpenFolderDialog();
+    }
+
+
+    /// <summary>
+    ///     Set the title of the dialog
+    /// </summary>
+    public OpenFolderDialogBuilder WithTitle(string? title)
+    {
+        _openFolderDialog.Title = title;
+        return this;
+    }
+
+    /// <summary>
+    ///     Set the initial directory of the dialog
+    /// </summary>
+    public OpenFolderDialogBuilder WithDirectory(string? directory)
+    {
+        _openFolderDialog.Directory = directory;
+        return this;
+    }
+
+    /// <summary>
+    ///     Asynchronously shows the folder dialog.
+    /// </summary>
+    /// <returns>
+    ///     A task that on completion returns an array containing the full path to the selected
+    ///     folder, or null if the dialog was canceled.
+    /// </returns>
+    public async Task<string?> ShowAsync()
+    {
+        return await _openFolderDialog.ShowAsync(_parent);
+    }
+}

src/Artemis.UI.Shared/Services/Interfaces/IWindowService.cs

@@ -22,7 +22,7 @@ namespace Artemis.UI.Shared.Services
         ///     Given a ViewModel, show its corresponding View as a window
         /// </summary>
         /// <param name="viewModel">ViewModel to show the View for</param>
-        void ShowWindow(object viewModel);
+        Window ShowWindow(object viewModel);
 
         /// <summary>
         ///     Shows a dialog displaying the given exception
@@ -61,6 +61,12 @@ namespace Artemis.UI.Shared.Services
         /// </returns>
         Task<bool> ShowConfirmContentDialog(string title, string message, string confirm = "Confirm", string? cancel = "Cancel");
 
+        /// <summary>
+        ///     Creates an open folder dialog, use the fluent API to configure it
+        /// </summary>
+        /// <returns>The builder that can be used to configure the dialog</returns>
+        OpenFolderDialogBuilder CreateOpenFolderDialog();
+        
         /// <summary>
         ///     Creates an open file dialog, use the fluent API to configure it
         /// </summary>

src/Artemis.UI.Shared/Services/Window/WindowService.cs

@@ -30,7 +30,7 @@ namespace Artemis.UI.Shared.Services
             return viewModel;
         }
 
-        public void ShowWindow(object viewModel)
+        public Window ShowWindow(object viewModel)
         {
             Window? parent = GetCurrentWindow();
 
@@ -49,6 +49,8 @@ namespace Artemis.UI.Shared.Services
                 window.Show(parent);
             else
                 window.Show();
+
+            return window;
         }
 
         public async Task<TResult> ShowDialogAsync<TViewModel, TResult>(params (string name, object? value)[] parameters) where TViewModel : DialogViewModelBase<TResult>
@@ -86,7 +88,6 @@ namespace Artemis.UI.Shared.Services
             Window window = (Window) Activator.CreateInstance(type)!;
             window.DataContext = viewModel;
             viewModel.CloseRequested += (_, args) => window.Close(args.Result);
-            viewModel.CancelRequested += (_, _) => window.Close();
 
             return await window.ShowDialog<TResult>(parent);
         }
@@ -118,6 +119,14 @@ namespace Artemis.UI.Shared.Services
                 throw new ArtemisSharedUIException("Can't show a content dialog without any windows being shown.");
             return new ContentDialogBuilder(_kernel, currentWindow);
         }
+        
+        public OpenFolderDialogBuilder CreateOpenFolderDialog()
+        {
+            Window? currentWindow = GetCurrentWindow();
+            if (currentWindow == null)
+                throw new ArtemisSharedUIException("Can't show an open folder dialog without any windows being shown.");
+            return new OpenFolderDialogBuilder(currentWindow);
+        }
 
         public OpenFileDialogBuilder CreateOpenFileDialog()
         {

src/Artemis.UI.Shared/Styles/Notifications.axaml

@@ -19,7 +19,7 @@
                     <Setter Property="MaxHeight" Value="0" />
                 </KeyFrame>
                 <KeyFrame Cue="100%">
-                    <Setter Property="MaxHeight" Value="50" />
+                    <Setter Property="MaxHeight" Value="600" />
                 </KeyFrame>
             </Animation>
         </Style.Animations>

src/Artemis.UI.Shared/ViewModelBase.cs

@@ -51,17 +51,8 @@ public abstract class DialogViewModelBase<TResult> : ValidatableViewModelBase
     {
         CloseRequested?.Invoke(this, new DialogClosedEventArgs<TResult>(result));
     }
-
-    /// <summary>
-    ///     Closes the dialog without a result
-    /// </summary>
-    public void Cancel()
-    {
-        CancelRequested?.Invoke(this, EventArgs.Empty);
-    }
-
+    
     internal event EventHandler<DialogClosedEventArgs<TResult>>? CloseRequested;
-    internal event EventHandler? CancelRequested;
 }
 
 /// <summary>