/*

 Copyright (C) 2018 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Custom segue for setting the root view controller of a

  QuizContainerViewController.

 */

#import "QuizContainerRootViewControllerSegue.h"

#import "QuizContainerViewController.h"

#import "Quiz.h"

@implementation QuizContainerRootViewControllerSegue

//| ----------------------------------------------------------------------------

//  Replaces the viewControllers array of the sourceViewController (which must 

//  be a QuizContainerViewController) with an array containing only the

//  destinationViewController.  Visually, it causes the

//  QuizContainerViewController to immediately display the

//  destinationViewController with no animated transition.

//

- (void)perform

{

    QuizContainerViewController *containerVC = (QuizContainerViewController*)self.sourceViewController;

    NSArray *viewControllers = @[self.destinationViewController];

    // For our custom segue we can set the quiz here

    // as the destinationViewController is now instantiated

    [Quiz setQuizOnQuestionViewController:(QuestionViewController *)self.destinationViewController];

    containerVC.viewControllers = viewControllers;

}

@end