public void Navigate(IRegistredView registredView, IRegion region = null)
{
var requestedRegion = registredView.Region;
if (region != null)
{
requestedRegion = region;
registredView.Region = region;
}
if (NavigationItems.TryGetValue(requestedRegion, out var navigationItems))
{
if (navigationItems.Actual.Value != registredView)
{
navigationItems.Actual.Value.DeactivateDataContext();
navigationItems.Add(registredView);
}
else
{
return;
}
}
else
{
var list = new NavigationSet();
list.Add(registredView);
NavigationItems.Add(registredView.Region, list);
}
registredView.Activate();
}
public IRegistredView GetPrevious(IRegistredView registredView)
{
if (NavigationItems.TryGetValue(registredView.Region, out var navigationItems))
{
return(navigationItems.GetPrevious());
}
return(null);
}
public void Add(IRegistredView registredView)
{
if (isInBackState)
{
RemoveAllNodesAfter(Actual);
isInBackState = false;
}
Chain.AddLast(registredView);
Actual = Chain.Last;
}