Implement Radio Toggle type on OSX.

native/Avalonia.Native/src/OSX/menu.h

@@ -32,7 +32,6 @@ private:
     IAvnActionCallback* _callback;
     IAvnPredicateCallback* _predicate;
     bool _isSeperator;
-    bool _isCheckable;
     
 public:
     FORWARD_IUNKNOWN()

native/Avalonia.Native/src/OSX/menu.mm

@@ -70,7 +70,6 @@
 
 AvnAppMenuItem::AvnAppMenuItem(bool isSeperator)
 {
-    _isCheckable = false;
     _isSeperator = isSeperator;
     
     if(isSeperator)
@@ -158,7 +157,7 @@ HRESULT AvnAppMenuItem::SetIsChecked (bool isChecked)
 {
     @autoreleasepool
     {
-        [_native setState:(isChecked && _isCheckable ? NSOnState : NSOffState)];
+        [_native setState:(isChecked ? NSOnState : NSOffState)];
         return S_OK;
     }
 }
@@ -171,16 +170,14 @@ HRESULT AvnAppMenuItem::SetToggleType(AvnMenuItemToggleType toggleType)
         {
             case AvnMenuItemToggleType::None:
                 [_native setOnStateImage:nullptr];
-                _isCheckable = false;
                 break;
                 
             case AvnMenuItemToggleType::CheckMark:
-                [_native setOnStateImage:nullptr];
-                _isCheckable = true;
+                [_native setOnStateImage: [NSImage imageNamed:@"NSMenuCheckmark"]];
                 break;
                 
             case AvnMenuItemToggleType::Radio:
-                [_native setOnStateImage: [NSImage imageNamed:@"NSMenuRadio"]];
+                [_native setOnStateImage: [NSImage imageNamed:@"NSMenuItemBullet"]];
                 break;
         }
         

src/Avalonia.Native/IAvnMenuItem.cs

@@ -28,7 +28,7 @@ namespace Avalonia.Native.Interop
 
         private void UpdateToggleType(NativeMenuItemToggleType toggleType)
         {
-            
+            ToggleType = (AvnMenuItemToggleType)toggleType;
         }
 
         private void UpdateGesture(Input.KeyGesture gesture)
@@ -78,6 +78,8 @@ namespace Avalonia.Native.Interop
 
                 UpdateAction(ManagedMenuItem as NativeMenuItem);
 
+                UpdateToggleType(item.ToggleType);
+
                 UpdateIsChecked(item.IsChecked);
 
                 _propertyDisposables.Add(ManagedMenuItem.GetObservable(NativeMenuItem.HeaderProperty)
@@ -89,6 +91,9 @@ namespace Avalonia.Native.Interop
                 _propertyDisposables.Add(ManagedMenuItem.GetObservable(NativeMenuItem.CommandProperty)
                     .Subscribe(x => UpdateAction(ManagedMenuItem as NativeMenuItem)));
 
+                _propertyDisposables.Add(ManagedMenuItem.GetObservable(NativeMenuItem.ToggleTypeProperty)
+                    .Subscribe(x => UpdateToggleType(x)));
+
                 _propertyDisposables.Add(ManagedMenuItem.GetObservable(NativeMenuItem.IsCheckedProperty)
                     .Subscribe(x => UpdateIsChecked(x)));
             }