Dreaming of promise event handling v3

gistfile1.m

- (id)init 
{
    if (self = [super initNibName:nil bundle:nil]) {
  	
		[[[[self whenViewDidLoad] then:^(id result, NSError *error) {

		    return [self.loginButton whenTouchDown];
 
 		}] then:^(id result, NSError *error) {
 		
			return [client login:self.loginField.text password:self.passwordField.text];
 		
		}] then:^(id result, NSError *error) {
		
			[client saveAccessToken:[result token]];
			[self presentModalViewController:[[RegisterViewController alloc] init]];
			return nil;

		} fail:^(id result, NSError *error) {

			[UIAlertView presentError:error];
			
		}];

	}
	return self;
}