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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Drawing;
using Windows.Win32.System.Variant;
using Windows.Win32.UI.Accessibility;
namespace System.Windows.Forms;
public partial class Panel
{
internal sealed class PanelAccessibleObject : ControlAccessibleObject
{
public PanelAccessibleObject(Panel owner) : base(owner)
{
}
internal override Rectangle BoundingRectangle => this.IsOwnerHandleCreated(out Panel? owner) ?
owner.GetToolNativeScreenRectangle() : Rectangle.Empty;
internal override IRawElementProviderFragmentRoot.Interface FragmentRoot => this;
public override AccessibleObject? GetChild(int index) =>
!this.IsOwnerHandleCreated(out Panel? owner) || index < 0 || index >= owner.Controls.Count
? null
: owner.Controls[index].AccessibilityObject;
private protected override bool IsInternal => true;
public override int GetChildCount()
=> this.IsOwnerHandleCreated(out Panel? owner) ? owner.Controls.Count : -1;
internal override VARIANT GetPropertyValue(UIA_PROPERTY_ID propertyID)
=> propertyID switch
{
UIA_PROPERTY_ID.UIA_IsKeyboardFocusablePropertyId => VARIANT.False,
_ => base.GetPropertyValue(propertyID)
};
}
}
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