// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Windows.Win32.System.Variant;
using Windows.Win32.UI.Accessibility;
 
namespace System.Windows.Forms;
 
public partial class GroupBox
{
    internal class GroupBoxAccessibleObject : ControlAccessibleObject
    {
        private const int HeadingLevel2 = 80052;
 
        internal GroupBoxAccessibleObject(GroupBox owner) : base(owner)
        {
        }
 
        public override AccessibleRole Role => this.GetOwnerAccessibleRole(AccessibleRole.Grouping);
 
        internal override VARIANT GetPropertyValue(UIA_PROPERTY_ID propertyID)
            => propertyID switch
            {
                UIA_PROPERTY_ID.UIA_IsKeyboardFocusablePropertyId => VARIANT.True,
                UIA_PROPERTY_ID.UIA_HeadingLevelPropertyId
                    when this.TryGetOwnerAs(out GroupBox? owner)
                        && owner.UsesModernRenderer
                    => (VARIANT)HeadingLevel2,
                _ => base.GetPropertyValue(propertyID)
            };
    }
}