Prism.Avalonia Library

Directory.Build.props

@@ -37,6 +37,7 @@
     <IsUnoProject>$(MSBuildProjectName.Contains('Uno'))</IsUnoProject>
     <IsFormsProject>$(MSBuildProjectName.Contains('Forms'))</IsFormsProject>
     <IsMauiProject>$(MSBuildProjectName.Contains('Maui'))</IsMauiProject>
+    <IsAvaloniaProject>$(MSBuildProjectName.Contains('Avalonia'))</IsAvaloniaProject>
     <SignAssembly Condition=" ('$(IsCoreProject)' Or '$(IsWpfProject)') ">True</SignAssembly>
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)prism.snk</AssemblyOriginatorKeyFile>
     <DelaySign>False</DelaySign>
@@ -49,6 +50,7 @@
     <PackageTags Condition=" '$(IsWpfProject)' == 'True' ">prism;mvvm;wpf;dependency injection;di</PackageTags>
     <PackageTags Condition=" '$(IsUnoProject)' == 'True' ">prism;mvvm;winui;uno-platform;xamarin;webassembly;android;ios;macos;dependency injection;di</PackageTags>
     <PackageTags Condition=" '$(IsFormsProject)' == 'True' ">prism;mvvm;uwp;android;ios;xamarin;xamarin.forms;dependency injection;di</PackageTags>
+    <PackageTags Condition=" '$(IsAvaloniaProject)' == 'True' ">prism;mvvm;axaml;xaml;desktop;navigation;prismavalonia;dialog;linux;macos;avalonia;dependency injection;di</PackageTags>
     <IS_PREVIEW Condition=" '$(IS_PREVIEW)' == '' ">false</IS_PREVIEW>
     <IS_RELEASE Condition=" '$(IS_RELEASE)' == '' ">false</IS_RELEASE>
     <UseWpf>$(IsWpfProject)</UseWpf>

Directory.Packages.props

@@ -56,7 +56,19 @@
     <PackageVersion Include="Uno.UniversalImageLoader" Version="1.9.36" />
     <PackageVersion Include="Microsoft.Windows.Compatibility" Version="8.0.0" />
   </ItemGroup>
-  <!-- Tests -->
+  <!-- Avalonia -->
+  <ItemGroup Condition=" $(IsAvaloniaProject) == 'true' ">
+    <PackageVersion Include="Avalonia" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.Desktop" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.Diagnostics" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.LinuxFramebuffer" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.Markup.Xaml.Loader" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.ReactiveUI" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.Themes.Simple" Version="11.0.7" />
+    <PackageVersion Include="Avalonia.Themes.Fluent" Version="11.0.7" />
+    <PackageVersion Include="System.Configuration.ConfigurationManager" Version="4.7.0" />
+  </ItemGroup>
+    <!-- Tests -->
   <ItemGroup>
     <PackageVersion Include="coverlet.collector" Version="6.0.0" />
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.3.3" />

PrismLibrary.sln

@@ -1,4 +1,3 @@
-
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.4.33213.308
@@ -93,6 +92,12 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Prism.Events", "src\Prism.E
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Prism.Uno.WinUI.Markup", "src\Uno\Prism.Uno.Markup\Prism.Uno.WinUI.Markup.csproj", "{0EA416B6-0AB6-464B-9F4D-206FFCFB262D}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Avalonia", "Avalonia", "{8AE1015F-4D62-47EF-A576-2F7411EC20D5}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Prism.Avalonia", "src\Avalonia\Prism.Avalonia\Prism.Avalonia.csproj", "{C505C63F-99E6-464F-8C83-1AE4239C19B1}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Prism.DryIoc.Avalonia", "src\Avalonia\Prism.DryIoc.Avalonia\Prism.DryIoc.Avalonia.csproj", "{A6B7B19C-3288-4CD2-A737-527BEB1ED807}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -415,6 +420,30 @@ Global
 		{0EA416B6-0AB6-464B-9F4D-206FFCFB262D}.Release|x64.Build.0 = Release|Any CPU
 		{0EA416B6-0AB6-464B-9F4D-206FFCFB262D}.Release|x86.ActiveCfg = Release|Any CPU
 		{0EA416B6-0AB6-464B-9F4D-206FFCFB262D}.Release|x86.Build.0 = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|x64.Build.0 = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Debug|x86.Build.0 = Debug|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|x64.ActiveCfg = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|x64.Build.0 = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|x86.ActiveCfg = Release|Any CPU
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1}.Release|x86.Build.0 = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|x64.Build.0 = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Debug|x86.Build.0 = Debug|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|x64.ActiveCfg = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|x64.Build.0 = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|x86.ActiveCfg = Release|Any CPU
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -455,6 +484,9 @@ Global
 		{8711D306-1118-4A11-9399-EF14AA13015E} = {540CEEC1-D541-4614-BF0B-18056A83E434}
 		{8610485A-BE9F-4938-86D4-E9F1FA1739A0} = {F3664D7A-6FF5-4D1F-9F5F-26EE87F032D3}
 		{0EA416B6-0AB6-464B-9F4D-206FFCFB262D} = {8F959801-D494-4CAF-9437-90F30472E169}
+		{8AE1015F-4D62-47EF-A576-2F7411EC20D5} = {F3664D7A-6FF5-4D1F-9F5F-26EE87F032D3}
+		{C505C63F-99E6-464F-8C83-1AE4239C19B1} = {8AE1015F-4D62-47EF-A576-2F7411EC20D5}
+		{A6B7B19C-3288-4CD2-A737-527BEB1ED807} = {8AE1015F-4D62-47EF-A576-2F7411EC20D5}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {C7433AE2-B1A0-4C1A-887E-5CAA7AAF67A6}

PrismLibrary_Avalonia.slnf

@@ -0,0 +1,12 @@
+{
+  "solution": {
+    "path": "PrismLibrary.sln",
+    "projects": [
+      "src\\Containers\\Prism.DryIoc.Shared\\Prism.DryIoc.Shared.shproj",
+      "src\\Avalonia\\Prism.Avalonia\\Prism.Avalonia.csproj",
+      "src\\Avalonia\\Prism.DryIoc.Avalonia\\Prism.DryIoc.Avalonia.csproj",
+      "tests\\Avalonia\\Prism.Avalonia.Tests\\Prism.Avalonia.Tests.csproj",
+      "tests\\Avalonia\\Prism.DryIoc.Avalonia.Tests\\Prism.DryIoc.Avalonia.Tests.csproj"
+    ]
+  }
+}

src/Avalonia/Prism.Avalonia/Common/MvvmHelpers.cs

@@ -0,0 +1,80 @@
+using System;
+using System.ComponentModel;
+using Avalonia.Controls;
+using Prism.Mvvm;
+
+namespace Prism.Common
+{
+    /// <summary>
+    /// Helper class for MVVM.
+    /// </summary>
+    public static class MvvmHelpers
+    {
+        /// <summary>
+        /// Sets the AutoWireViewModel property to true for the <paramref name="viewOrViewModel"/>.
+        /// </summary>
+        /// <remarks>
+        /// The AutoWireViewModel property will only be set to true if the view
+        /// is a <see cref="FrameworkElement"/>, the DataContext of the view is null, and
+        /// the AutoWireViewModel property of the view is null.
+        /// </remarks>
+        /// <param name="viewOrViewModel">The View or ViewModel.</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        internal static void AutowireViewModel(object viewOrViewModel)
+        {
+            if (viewOrViewModel is Control view &&
+                view.DataContext is null &&
+                ViewModelLocator.GetAutoWireViewModel(view) is null)
+            {
+                ViewModelLocator.SetAutoWireViewModel(view, true);
+            }
+        }
+
+        ////#endif
+
+        /// <summary>
+        /// Perform an <see cref="Action{T}"/> on a view and ViewModel.
+        /// </summary>
+        /// <remarks>
+        /// The action will be performed on the view and its ViewModel if they implement <typeparamref name="T"/>.
+        /// </remarks>
+        /// <typeparam name="T">The <see cref="Action{T}"/> parameter type.</typeparam>
+        /// <param name="view">The view to perform the <see cref="Action{T}"/> on.</param>
+        /// <param name="action">The <see cref="Action{T}"/> to perform.</param>
+        public static void ViewAndViewModelAction<T>(object view, Action<T> action) where T : class
+        {
+            if (view is T viewAsT)
+                action(viewAsT);
+
+            if (view is Control element && element.DataContext is T viewModelAsT)
+            {
+                action(viewModelAsT);
+            }
+        }
+
+        /// <summary>
+        /// Get an implementer from a view or ViewModel.
+        /// </summary>
+        /// <remarks>
+        /// If the view implements <typeparamref name="T"/> it will be returned.
+        /// Otherwise if the view's <see cref="FrameworkElement.DataContext"/> implements <typeparamref name="T"/> it will be returned instead.
+        /// </remarks>
+        /// <typeparam name="T">The implementer type to get.</typeparam>
+        /// <param name="view">The view to get <typeparamref name="T"/> from.</param>
+        /// <returns>view or ViewModel as <typeparamref name="T"/>.</returns>
+        public static T GetImplementerFromViewOrViewModel<T>(object view) where T : class
+        {
+            if (view is T viewAsT)
+            {
+                return viewAsT;
+            }
+
+            if (view is Control element && element.DataContext is T vmAsT)
+            {
+                return vmAsT;
+            }
+
+            return null;
+        }
+    }
+}

src/Avalonia/Prism.Avalonia/Common/ObservableObject.cs

@@ -0,0 +1,57 @@
+using System;
+using System.ComponentModel;
+using Avalonia;
+using Avalonia.Controls;
+
+namespace Prism.Common
+{
+    /// <summary>
+    /// Class that wraps an object, so that other classes can notify for Change events. Typically, this class is set as 
+    /// a Dependency Property on AvaloniaObjects, and allows other classes to observe any changes in the Value. 
+    /// </summary>
+    /// <remarks>
+    /// This class is required, because in Silverlight, it's not possible to receive Change notifications for Dependency properties that you do not own. 
+    /// </remarks>
+    /// <typeparam name="T">The type of the property that's wrapped in the Observable object</typeparam>
+    public class ObservableObject<T> : Control, INotifyPropertyChanged
+    {
+        /// <summary>
+        /// Identifies the Value property of the ObservableObject
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1000:DoNotDeclareStaticMembersOnGenericTypes", Justification = "This is the pattern for WPF dependency properties")]
+        public static readonly StyledProperty<T> ValueProperty =
+            AvaloniaProperty.Register<Control, T>(name: nameof(Value));
+
+        //StyledProperty.Register("Value", typeof(T), typeof(ObservableObject<T>), new PropertyMetadata(ValueChangedCallback));
+
+        /// <summary>
+        /// Event that gets invoked when the Value property changes. 
+        /// </summary>
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        /// <summary>
+        /// The value that's wrapped inside the ObservableObject.
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1721:PropertyNamesShouldNotMatchGetMethods")]
+        public T Value
+        {
+            get { return (T)this.GetValue(ValueProperty); }
+            set { this.SetValue(ValueProperty, value); }
+        }
+
+        private static void ValueChangedCallback(AvaloniaObject d, AvaloniaPropertyChangedEventArgs e)
+        {
+            ObservableObject<T> thisInstance = ((ObservableObject<T>)d);
+            PropertyChangedEventHandler eventHandler = thisInstance.PropertyChanged;
+            if (eventHandler != null)
+            {
+                eventHandler(thisInstance, new PropertyChangedEventArgs(nameof(Value)));
+            }
+        }
+
+        static ObservableObject()
+        {
+            ValueProperty.Changed.Subscribe(args => ValueChangedCallback(args?.Sender, args));
+        }
+    }
+}

src/Avalonia/Prism.Avalonia/Dialogs/Dialog.cs

@@ -0,0 +1,76 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Styling;
+
+namespace Prism.Dialogs
+{
+    /// <summary>
+    /// This class contains <see cref="IDialogWindow"/> attached properties.
+    /// </summary>
+    public class Dialog
+    {
+        /// <summary>Identifies the WindowStyle attached property.</summary>
+        /// <remarks>This attached property is used to specify the style of a <see cref="IDialogWindow"/>.</remarks>
+        public static readonly AvaloniaProperty WindowStyleProperty =
+            AvaloniaProperty.RegisterAttached<AvaloniaObject, Style>("WindowStyle", typeof(Dialog));
+
+        /// <summary>Identifies the WindowStartupLocation attached property.</summary>
+        /// <remarks>This attached property is used to specify the startup location of a <see cref="IDialogWindow"/>.</remarks>
+        public static readonly AvaloniaProperty WindowStartupLocationProperty =
+            AvaloniaProperty.RegisterAttached<AvaloniaObject, WindowStartupLocation>(
+                name: "WindowStartupLocation",
+                ownerType: typeof(Dialog));
+
+        public Dialog()
+        {
+            WindowStartupLocationProperty.Changed.Subscribe(args => OnWindowStartupLocationChanged(args?.Sender, args));
+        }
+
+        /// <summary>
+        /// Gets the value for the <see cref="WindowStyleProperty"/> attached property.
+        /// </summary>
+        /// <param name="obj">The target element.</param>
+        /// <returns>The <see cref="WindowStyleProperty"/> attached to the <paramref name="obj"/> element.</returns>
+        public static Style GetWindowStyle(AvaloniaObject obj)
+        {
+            return (Style)obj.GetValue(WindowStyleProperty);
+        }
+
+        /// <summary>
+        /// Sets the <see cref="WindowStyleProperty"/> attached property.
+        /// </summary>
+        /// <param name="obj">The target element.</param>
+        /// <param name="value">The Style to attach.</param>
+        public static void SetWindowStyle(AvaloniaObject obj, Style value)
+        {
+            obj.SetValue(WindowStyleProperty, value);
+        }
+
+        /// <summary>
+        /// Gets the value for the <see cref="WindowStartupLocationProperty"/> attached property.
+        /// </summary>
+        /// <param name="obj">The target element.</param>
+        /// <returns>The <see cref="WindowStartupLocationProperty"/> attached to the <paramref name="obj"/> element.</returns>
+        public static WindowStartupLocation GetWindowStartupLocation(AvaloniaObject obj)
+        {
+            return (WindowStartupLocation)obj.GetValue(WindowStartupLocationProperty);
+        }
+
+        /// <summary>
+        /// Sets the <see cref="WindowStartupLocationProperty"/> attached property.
+        /// </summary>
+        /// <param name="obj">The target element.</param>
+        /// <param name="value">The WindowStartupLocation to attach.</param>
+        public static void SetWindowStartupLocation(AvaloniaObject obj, WindowStartupLocation value)
+        {
+            obj.SetValue(WindowStartupLocationProperty, value);
+        }
+
+        private static void OnWindowStartupLocationChanged(AvaloniaObject sender, AvaloniaPropertyChangedEventArgs e)
+        {
+            if (sender is Window window)
+                window.WindowStartupLocation = (WindowStartupLocation)e.NewValue;
+        }
+    }
+}