protected virtual bool CloseChildViewController(IMvxViewModel viewModel, MvxChildPresentationAttribute attribute)
{
// if there are modals presented
if (ModalViewControllers.Any())
{
foreach (var modalNav in ModalViewControllers.Where(v => v is UINavigationController))
{
if (TryCloseViewControllerInsideStack((UINavigationController)modalNav, viewModel))
{
return(true);
}
}
}
//if the current root is a TabBarViewController, delegate close responsibility to it
if (TabBarViewController != null && TabBarViewController.CloseChildViewModel(viewModel))
{
return(true);
}
if (SplitViewController != null && SplitViewController.CloseChildViewModel(viewModel))
{
return(true);
}
// if the current root is a NavigationController, close it in the stack
if (MasterNavigationController != null && TryCloseViewControllerInsideStack(MasterNavigationController, viewModel))
{
return(true);
}
return(false);
}
protected virtual ValueTask <bool> CloseChildViewController(IMvxViewModel viewModel, MvxChildPresentationAttribute?attribute)
{
if (ModalViewControllers.Any())
{
foreach (var navController in ModalViewControllers.Where(v => v is UINavigationController))
{
if (TryCloseViewControllerInsideStack((UINavigationController)navController, viewModel))
{
return(new ValueTask <bool>(true));
}
}
}
if (TabBarViewController != null && TabBarViewController.CloseChildViewModel(viewModel))
{
return(new ValueTask <bool>(true));
}
if (MasterNavigationController != null && TryCloseViewControllerInsideStack(MasterNavigationController, viewModel))
{
return(new ValueTask <bool>(true));
}
return(new ValueTask <bool>(false));
}
protected virtual ValueTask <bool> CloseModalViewController(IMvxViewModel viewModel)
{
if (ModalViewControllers == null || !ModalViewControllers.Any())
{
return(new ValueTask <bool>(false));
}
var modal = ModalViewControllers
.FirstOrDefault(v => v is IMvxTvosView && v.GetIMvxTvosView().ViewModel == viewModel);
if (modal != null)
{
return(CloseModalViewController(modal));
}
UIViewController viewController = null;
foreach (var vc in ModalViewControllers.Where(v => v is UINavigationController))
{
var rootViewController = ((UINavigationController)vc).ViewControllers.FirstOrDefault();
if (rootViewController != null && rootViewController.GetIMvxTvosView().ViewModel == viewModel)
{
viewController = vc;
break;
}
}
if (viewController != null)
{
return(CloseModalViewController(viewController));
}
return(new ValueTask <bool>(false));
}
protected virtual Task <bool> CloseModalViewController(IMvxViewModel toClose, MvxModalPresentationAttribute attribute)
{
if (ModalViewControllers == null || !ModalViewControllers.Any())
{
return(Task.FromResult(false));
}
// check for plain modals
var modalToClose = ModalViewControllers.FirstOrDefault(v => v is IMvxIosView && v.GetIMvxIosView().ViewModel == toClose);
if (modalToClose != null)
{
return(CloseModalViewController(modalToClose, attribute));
}
// check for modal navigation stacks
UIViewController controllerToClose = null;
foreach (var vc in ModalViewControllers.Where(v => v is UINavigationController))
{
var root = ((UINavigationController)vc).ViewControllers.FirstOrDefault();
if (root != null && root.GetIMvxIosView().ViewModel == toClose)
{
controllerToClose = vc;
break;
}
}
if (controllerToClose != null)
{
return(CloseModalViewController(controllerToClose, attribute));
}
return(Task.FromResult(false));
}
protected virtual bool CloseModalViewController(IMvxViewModel toClose)
{
if (ModalViewControllers == null || !ModalViewControllers.Any())
{
return(false);
}
// check for plain modals
var modalToClose = ModalViewControllers.FirstOrDefault(v => v is IMvxIosView && v.GetIMvxIosView().ViewModel == toClose);
if (modalToClose != null)
{
CloseModalViewController(modalToClose);
return(true);
}
// check for modal navigation stacks
UIViewController controllerToClose = null;
foreach (var vc in ModalViewControllers.Where(v => v is UINavigationController))
{
var root = ((UINavigationController)vc).ViewControllers.FirstOrDefault();
if (root != null && root.GetIMvxIosView().ViewModel == toClose)
{
controllerToClose = root;
break;
}
}
if (controllerToClose != null)
{
CloseModalViewController(controllerToClose);
return(true);
}
return(false);
}