gistfile1.m

//
//  Controller.m
//
//  Created by Matthew Smith on 4/21/14.
//  Copyright (c) 2014 LatteJed. All rights reserved.
//

#import "Controller.h"
#import "Model.h"

@interface Controller ()

@property (nonatomic, weak) IBOutlet NSButton* openFileButton;
@property (nonatomic, weak) IBOutlet FileView* fileView;
@property (nonatomic, strong) Model* model;

@end

@implementation Controller

- (void)awakeFromNib;
{
    [self.openFileButton setActionBlock:^{
        NSOpenPanel *panel = [NSOpenPanel openPanel];
        [panel beginSheetModalForWindow:[[self view] window]
                      completionHandler:^(NSInteger result) {
                          if (result == NSFileHandlingPanelOKButton)
                          {
                              self.model = [Model new];
                              self.model.url = [[panel URLs] firstObject];
                          }
                      }];
    }];
    
    [[NSNotificationCenter defaultCenter] 
              addObserverForName:kNotificationURLDidUpdate
                          object:nil
                           queue:nil
                      usingBlock:^(NSNotification *note) {
                          if ([self.model url])
                          {
                              [self.fileView setFileWithURL:self.model.url];
                          }
                      }];
}