/// <summary>
/// Called to inform the tab control that one of its items changed its content.
/// </summary>
/// <param name="container">The item that was changed.</param>
internal void HandleItemContentChanged(TabItem container)
{
if (SelectedIndex < 0 || SelectedIndex >= Items.Count)
{
return;
}
var current = ItemContainerGenerator.ContainerFromIndex(SelectedIndex);
if (current != container)
{
return;
}
UpdateTabContent();
}
/// <summary>
/// Gets the next enabled and visible tab after the specified tab.
/// </summary>
private TabItem GetNextEnabledTabItem(Int32 start, Int32 delta)
{
if (delta == 0)
{
return(null);
}
var count = Items.Count;
var current = (count + ((start + delta) % count)) % count;
for (int i = 0; i < Items.Count; i++)
{
var container = ItemContainerGenerator.ContainerFromIndex(current) as TabItem;
if (container != null && container.IsEnabled && container.Visibility == Visibility.Visible)
{
return(container);
}
current = (count + ((start + delta) % count)) % count;
}
return(null);
}
