/*

 Copyright (C) 2016 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 The second view controller for the Adaptive Presentation demo.

 */

#import "AAPLAdaptivePresentationSecondViewController.h"

#import "AAPLAdaptivePresentationController.h"

@interface AAPLAdaptivePresentationSecondViewController () <UIAdaptivePresentationControllerDelegate>

@end

@implementation AAPLAdaptivePresentationSecondViewController

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

- (void)viewDidLoad

{

    [super viewDidLoad];

    // In the regular environment, AAPLAdaptivePresentationController displays

    // a close button for the presented view controller.  For the compact

    // environment, a 'dismiss' button is added to this view controller's

    // navigationItem.  This button will be picked up and displayed in the

    // navigation bar of the navigation controller returned by

    // -presentationController:viewControllerForAdaptivePresentationStyle:

    UIBarButtonItem *dismissButton = [[UIBarButtonItem alloc] initWithTitle:@"Dismiss" style:UIBarButtonItemStylePlain target:self action:@selector(dismissButtonAction:)];

    self.navigationItem.leftBarButtonItem = dismissButton;

}

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

- (void)setTransitioningDelegate:(id<UIViewControllerTransitioningDelegate>)transitioningDelegate

{

    [super setTransitioningDelegate:transitioningDelegate];

    // For an adaptive presentation, the presentation controller's delegate

    // must be configured prior to invoking

    // -presentViewController:animated:completion:.  This ensures the

    // presentation is able to properly adapt if the initial presentation

    // environment is compact.

    self.presentationController.delegate = self;

}

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

- (IBAction)dismissButtonAction:(UIBarButtonItem *)sender

{

    [self performSegueWithIdentifier:@"unwindToFirstViewController" sender:sender];

}

#pragma mark -

#pragma mark UIAdaptivePresentationControllerDelegate

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

- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller

{

    // An adaptive presentation may only fallback to

    // UIModalPresentationFullScreen or UIModalPresentationOverFullScreen

    // in the horizontally compact environment.  Other presentation styles

    // are interpreted as UIModalPresentationNone - no adaptation occurs.

    return UIModalPresentationFullScreen;

}

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

- (UIViewController*)presentationController:(UIPresentationController *)controller viewControllerForAdaptivePresentationStyle:(UIModalPresentationStyle)style

{

    return [[UINavigationController alloc] initWithRootViewController:controller.presentedViewController];

}

@end