HomeViewPresenter.m

#import "HomeViewPresenter.h"

#import "HomeView.h"
#import "HomeViewController.h"
#import "ImageViewController.h"
#import "ImageViewPresenter.h"
#import "UIImageHelper.h"

@interface HomeViewPresenter () {
  UIImageHelper *imageHelper_;
}
@end

@implementation HomeViewPresenter

+ (HomeViewController *)createViewController {
  HomeViewPresenter *presenter = [HomeViewPresenter new];
  HomeViewController *viewController = [[HomeViewController alloc] initWithPresenter:presenter];
  return viewController;
}

- (id)initWithImageHelper:(UIImageHelper *)imageHelper {
  self = [super init];
  if (self) {
    imageHelper_ = imageHelper;
  }
  return self;
}

- (void)viewLoaded {
  HomeView *homeView = [[self homeViewController] homeView];

  if ([imageHelper_ isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
    [[homeView cameraButton] addTarget:self
                                action:@selector(cameraButtonSelected:)
                      forControlEvents:UIControlEventTouchUpInside];
  } else {
    [[homeView cameraButton] setEnabled:NO];
  }

  [[homeView galleryButton] addTarget:self
                               action:@selector(galleryButtonSelected:)
                     forControlEvents:UIControlEventTouchUpInside];

  [[homeView inspireButton] addTarget:self
                               action:@selector(inspireButtonSelected:)
                     forControlEvents:UIControlEventTouchUpInside];
}

- (HomeViewController *)homeViewController {
  return (HomeViewController *)[self viewController];
}

#pragma mark private

- (void)cameraButtonSelected:(id)sender {
  [[self homeViewController] showImagePickerWithType:UIImagePickerControllerSourceTypeCamera
                                            delegate:self
  ];
}

- (void)galleryButtonSelected:(id)sender {
  [[self homeViewController] showImagePickerWithType:UIImagePickerControllerSourceTypePhotoLibrary
                                            delegate:self];
}

- (void)inspireButtonSelected:(id)sender {
  // TODO(cate): Implement.
  NSLog(@"inspire button pressed");
}

#pragma mark UIImagePickerControllerDelegate

- (void)imagePickerController:(UIImagePickerController *)picker
    didFinishPickingMediaWithInfo:(NSDictionary *)info {
  UIImage *image = info[UIImagePickerControllerOriginalImage];
  ImageViewController *imageViewController =
      [ImageViewPresenter createViewControllerWithImage:image];
  [[[self viewController] navigationController] pushViewController:imageViewController
                                                          animated:YES];
  [[self viewController] dismissViewControllerAnimated:YES withCompletionBlock:nil];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
  [[self viewController] dismissViewControllerAnimated:YES withCompletionBlock:nil];
}

@end