public override void Close(IMvxViewModel toClose)
{
//We make an array of this to make a snapshot before modifying presentation hosts.
var presentationHostsToDrop = (from host in presentationHosts
where ((IMvxTouchView)host).ViewModel == toClose
select host).ToArray();
foreach (var host in presentationHostsToDrop)
{
presentationHosts.Remove(host);
}
var viewsPresentedByHosts = removalAgentsByView.Keys;
var relevantViewsPresentedByHosts = (from view in viewsPresentedByHosts
where view.ViewModel == toClose
select view).ToArray();
if (relevantViewsPresentedByHosts.Count() > 0)
{
foreach (var view in relevantViewsPresentedByHosts)
{
var removalAgent = removalAgentsByView [view];
removalAgent();
removalAgentsByView.Remove(view);
}
}
else if (MasterNavigationController != null)
{
var topView = MasterNavigationController.TopViewController as IMvxView;
IMvxViewModel topViewModel;
if (topView != null)
{
topViewModel = topView.ReflectionGetViewModel();
}
else
{
// #if DEBUG
// MvxTrace.Warning ("Don't know how to close this ViewModel; topmost is not a touchview");
// #endif
return;
}
if (topViewModel == toClose)
{
if (MasterNavigationController.ViewControllers.Length > 1)
{
MasterNavigationController.PopViewController(true);
}
else
{
MasterNavigationController.WillMoveToParentViewController(null);
MasterNavigationController.RemoveFromParentViewController();
MasterNavigationController.View.RemoveFromSuperview();
MasterNavigationController = null;
}
}
else
{
// #if DEBUG
// MvxTrace.Warning ("Don't know how to close this ViewModel; topmost view does not present this viewmodel");
// #endif
return;
}
}
else
{
// #if DEBUG
// MvxTrace.Warning("Don't know how to close this ViewModel; there are no views governed by the RichTouchPresenter or its MasterNavigationController");
// #endif
}
}
