private static void ReEvaluateContextPath(DependencyObject element)
{
UiFeatureManagement.ClearContextPath(element);
//Get (inherited) parent path
string ParentContextPath = UiFeatureManagement.GetContextPath(element);
string Context = UiFeatureManagement.GetContext(element);
if (Context != null)
{
//Compute and set new path
UiFeatureManagement.SetContextPath(element, ParentContextPath != null ? $"{ParentContextPath}/{Context}" : Context);
}
UiFeatureManagement.NotifyChildrenThatContextPathChanged(element);
}
private static void NotifyChildrenThatContextPathChanged(DependencyObject element)
{
if (element is Visual || element is Visual3D)
{
for (int Index = 0; Index < VisualTreeHelper.GetChildrenCount(element); Index++)
{
DependencyObject Child = VisualTreeHelper.GetChild(element, Index);
if (Child.ReadLocalValue(UiFeatureManagement.ContextPathProperty) != DependencyProperty.UnsetValue)
//if ( UIFeatureManagement.GetContext(Child) != null)
{
//there is a Context registered. this means, the context path must be re-evaluated.
//re-evaluation of children will be done in the called method
UiFeatureManagement.ReEvaluateContextPath(Child);
}
else
{
//no context is specified here, so check the children
UiFeatureManagement.NotifyChildrenThatContextPathChanged(Child);
}
}
}
}
