From 1ddad8fcd0b84531d51ec00fb9ff328caeee3f07 Mon Sep 17 00:00:00 2001
From: ema <mccoy39082@163.com>
Date: Fri, 27 Sep 2024 11:12:14 +0800
Subject: [PATCH] feat: MenuItemGroup

---
 README.md                                     |  2 +-
 src/Wpf.Ui.Test/MainWindow.xaml               | 28 ++++++-
 src/Wpf.Ui.Test/Wpf.Ui.Test.csproj            |  3 +
 .../Controls/Primitives/MenuItemGroup.cs      | 76 +++++++++++++++++++
 4 files changed, 107 insertions(+), 2 deletions(-)
 create mode 100644 src/Wpf.Ui.Violeta/Controls/Primitives/MenuItemGroup.cs

diff --git a/README.md b/README.md
index c21d8b3..92aca91 100644
--- a/README.md
+++ b/README.md
@@ -110,7 +110,7 @@ Similar to WPF UI.
   MessageBoxResult result = await MessageBox.QuestionAsync("This is a question and do you want to click OK?");
   ```
 
-- **ToggleButtonGroup** / **RadioButtonGroup**
+- **ToggleButtonGroup** / **RadioButtonGroup** / **MenuItemGroup**
 
   > Turn the ToggleButton and RadioButton under the same Group into a radio button.
 
diff --git a/src/Wpf.Ui.Test/MainWindow.xaml b/src/Wpf.Ui.Test/MainWindow.xaml
index 30f09d1..9371ba0 100644
--- a/src/Wpf.Ui.Test/MainWindow.xaml
+++ b/src/Wpf.Ui.Test/MainWindow.xaml
@@ -2,7 +2,9 @@
     x:Class="Wpf.Ui.Test.MainWindow"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:b="http://schemas.github.com/computedbehaviors/2024/xaml"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
     xmlns:local="clr-namespace:Wpf.Ui.Test"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml"
@@ -572,7 +574,7 @@
                             Margin="0,8,0,0"
                             FontSize="14"
                             FontWeight="Black"
-                            Text="ToggleButtonGroup / RadioButtonGroup" />
+                            Text="ToggleButtonGroup / RadioButtonGroup / MenuItemGroup" />
                         <StackPanel Margin="0,8,0,0" Orientation="Horizontal">
                             <StackPanel Orientation="Horizontal">
                                 <StackPanel.Resources>
@@ -586,6 +588,30 @@
                                     Margin="8,0,0,0"
                                     vio:ToggleButtonGroup.Group="{DynamicResource ToggleButtonGroup}"
                                     Content="2nd" />
+                                <Button Content="MenuItemGroup">
+                                    <Button.Resources>
+                                        <vio:MenuItemGroup x:Key="MenuItemGroup" IsCanCancel="True" />
+                                    </Button.Resources>
+                                    <Button.ContextMenu>
+                                        <ContextMenu>
+                                            <MenuItem
+                                                vio:MenuItemGroup.Group="{StaticResource MenuItemGroup}"
+                                                Header="Item 1"
+                                                IsCheckable="True" />
+                                            <MenuItem
+                                                vio:MenuItemGroup.Group="{StaticResource MenuItemGroup}"
+                                                Header="Item 2"
+                                                IsCheckable="True" />
+                                            <MenuItem
+                                                vio:MenuItemGroup.Group="{StaticResource MenuItemGroup}"
+                                                Header="Item 3"
+                                                IsCheckable="True" />
+                                        </ContextMenu>
+                                    </Button.ContextMenu>
+                                    <i:Interaction.Behaviors>
+                                        <b:LeftContextMenuBehavior />
+                                    </i:Interaction.Behaviors>
+                                </Button>
                             </StackPanel>
                             <StackPanel Margin="8,0,0,0" Orientation="Horizontal">
                                 <StackPanel.Resources>
diff --git a/src/Wpf.Ui.Test/Wpf.Ui.Test.csproj b/src/Wpf.Ui.Test/Wpf.Ui.Test.csproj
index e9638c7..d044886 100644
--- a/src/Wpf.Ui.Test/Wpf.Ui.Test.csproj
+++ b/src/Wpf.Ui.Test/Wpf.Ui.Test.csproj
@@ -25,6 +25,9 @@
 	<ItemGroup>
 		<PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
 		<PackageReference Include="WPF-UI" Version="3.0.5" />
+		<PackageReference Include="ComputedAnimations.WPF" Version="0.4.5-beta" />
+		<PackageReference Include="ComputedBehaviors.WPF" Version="0.4.5-beta" />
+		<PackageReference Include="ComputedConverters.WPF" Version="0.4.5-beta" />
 	</ItemGroup>
 
 	<ItemGroup>
diff --git a/src/Wpf.Ui.Violeta/Controls/Primitives/MenuItemGroup.cs b/src/Wpf.Ui.Violeta/Controls/Primitives/MenuItemGroup.cs
new file mode 100644
index 0000000..34239de
--- /dev/null
+++ b/src/Wpf.Ui.Violeta/Controls/Primitives/MenuItemGroup.cs
@@ -0,0 +1,76 @@
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace Wpf.Ui.Violeta.Controls.Primitives;
+
+public class MenuItemGroup : List<MenuItem>
+{
+    public bool IsCanCancel { get; set; } = false;
+
+    public static MenuItemGroup GetGroup(DependencyObject obj)
+    {
+        return (MenuItemGroup)obj.GetValue(GroupProperty);
+    }
+
+    public static void SetGroup(DependencyObject obj, MenuItemGroup value)
+    {
+        obj.SetValue(GroupProperty, value);
+    }
+
+    public static readonly DependencyProperty GroupProperty =
+        DependencyProperty.RegisterAttached("Group", typeof(MenuItemGroup), typeof(MenuItemGroup), new PropertyMetadata(null!, OnGroupChanged));
+
+    private static void OnGroupChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+    {
+        if (d is MenuItem tb)
+        {
+            ((MenuItemGroup)e.NewValue).Join(tb);
+        }
+    }
+
+    protected bool Handling { get; set; } = false;
+
+    public MenuItemGroup JoinWith(MenuItem menuItem)
+    {
+        Join(menuItem);
+        return this;
+    }
+
+    public void Join(MenuItem menuItem)
+    {
+        Add(menuItem);
+
+        menuItem.Checked += (s, e) =>
+        {
+            if (s is MenuItem mi && GetGroup(mi) is MenuItemGroup group)
+            {
+                Handling = true;
+                foreach (MenuItem tb in group)
+                {
+                    if (tb != mi)
+                    {
+                        tb.IsChecked = false;
+                    }
+                }
+                Handling = false;
+            }
+        };
+        menuItem.Unchecked += (s, e) =>
+        {
+            if (!IsCanCancel && !Handling && s is MenuItem mi)
+            {
+                mi.IsChecked = true;
+            }
+        };
+        SetGroup(menuItem, this);
+    }
+
+    public void Unjoin(MenuItem checkBox)
+    {
+        Remove(checkBox);
+        SetGroup(checkBox, null!);
+    }
+
+    public static MenuItemGroup New() => [];
+}