private static FrameworkElement FindNavigatorElement(FrameworkElement elm, BlockNavigator self = null)
{
var searchElm = elm;
while (true)
{
if (searchElm.Parent == null)
{
break;
}
if ((bool)searchElm.GetValue(BlockNavigator.NestedNavigationProperty) == true)
{
var nav = BlockNavigator.GetBlockNavigator(searchElm);
if (self != null && nav != self)
{
searchElm = (FrameworkElement)searchElm.Parent;
continue;
}
return(searchElm);
}
searchElm = (FrameworkElement)searchElm.Parent;
}
return(searchElm);
}
private static void SetBlockNavigator(UIElement element, BlockNavigator value = null)
{
element.SetValue(BlockNavigatorProperty, value ?? new BlockNavigator(element));
}