/// <summary>
/// Helper for setting AccessibilityView property on a StyledElement.
/// </summary>
public static void SetAccessibilityView(StyledElement element, AccessibilityView value)
{
if (element == null)
{
throw new ArgumentNullException(nameof(element));
}
element.SetValue(AccessibilityViewProperty, value);
}
/// <summary>
/// Recursively sets AccessibilityView to <paramref name="accessibilityView"/> for <paramref name="parentPeer"/> children.
/// </summary>
/// <param name="parentPeer"></param>
/// <param name="accessibilityView"></param>
private static void SetChildrenAccessibilityView(AutomationPeer parentPeer, AccessibilityView accessibilityView)
{
if (parentPeer?.GetChildren() == null)
{
return;
}
foreach (AutomationPeer childPeer in parentPeer.GetChildren())
{
UIElement child = GetUIElementFromAutomationPeer(childPeer);
if (child != null)
{
AutomationProperties.SetAccessibilityView(child, accessibilityView);
}
SetChildrenAccessibilityView(childPeer, accessibilityView);
}
}
/// <summary>
/// Recursively sets AccessibilityView to <paramref name="accessibilityView"/> for <paramref name="parentPeer"/> children.
/// </summary>
/// <param name="parentPeer"></param>
/// <param name="accessibilityView"></param>
private static void SetChildrenAccessibilityView(AutomationPeer parentPeer, AccessibilityView accessibilityView)
{
if (parentPeer?.GetChildren() == null)
{
return;
}
foreach (AutomationPeer childPeer in parentPeer.GetChildren())
{
UIElement child = GetUIElementFromAutomationPeer(childPeer);
if (child != null)
{
AutomationProperties.SetAccessibilityView(child, accessibilityView);
// If element is hidden clear the generated label if any.
if (IsInGenerativeStateAndHidden(child))
{
child.ClearValue(AutomationProperties.NameProperty);
}
}
SetChildrenAccessibilityView(childPeer, accessibilityView);
}
}
public static void SetAccessibilityeView(DependencyObject element, AccessibilityView value)
{
element.SetValue(AccessibilityViewProperty, value);
}
