CredentialsInputController.m

/*
 Credentials input controller
 
 Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
 
 This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 If a copy of the MPL was not distributed with this file, You can obtain one at
 http://mozilla.org/MPL/2.0/.
 */
 
#import "CredentialsInputController.h"
#import "RDPSession.h"
#import "Utils.h"
 
@implementation CredentialsInputController
 
- (id)initWithNibName:(NSString *)nibNameOrNil
               bundle:(NSBundle *)nibBundleOrNil
              session:(RDPSession *)session
               params:(NSMutableDictionary *)params
{
  self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
  if (self)
  {
    _session = session;
    _params = params;
    [self setModalPresentationStyle:UIModalPresentationFormSheet];
 
    // on iphone we have the problem that the buttons are hidden by the keyboard
    // we solve this issue by registering keyboard notification handlers and adjusting the
    // scrollview accordingly
    if (IsPhone())
    {
      [[NSNotificationCenter defaultCenter] addObserver:self
                                               selector:@selector(keyboardWillShow:)
                                                   name:UIKeyboardWillShowNotification
                                                 object:nil];
      [[NSNotificationCenter defaultCenter] addObserver:self
                                               selector:@selector(keyboardWillHide:)
                                                   name:UIKeyboardWillHideNotification
                                                 object:nil];
    }
  }
  return self;
}
 
- (void)viewDidLoad
{
  [super viewDidLoad];
 
  // set localized strings
  [_lbl_message
      setText:NSLocalizedString(
                  @"Please provide the missing user information in order to proceed and login.",
                  @"Credentials input view message")];
  [_textfield_username
      setPlaceholder:NSLocalizedString(@"Username", @"Credentials Input Username hint")];
  [_textfield_password
      setPlaceholder:NSLocalizedString(@"Password", @"Credentials Input Password hint")];
  [_textfield_domain
      setPlaceholder:NSLocalizedString(@"Domain", @"Credentials Input Domain hint")];
  [_btn_login setTitle:NSLocalizedString(@"Login", @"Login Button")
              forState:UIControlStateNormal];
  [_btn_cancel setTitle:NSLocalizedString(@"Cancel", @"Cancel Button")
               forState:UIControlStateNormal];
 
  // init scrollview content size
  [_scroll_view setContentSize:[_scroll_view frame].size];
 
  // set params in the view
  [_textfield_username setText:[_params valueForKey:@"username"]];
  [_textfield_password setText:[_params valueForKey:@"password"]];
  [_textfield_domain setText:[_params valueForKey:@"domain"]];
}
 
- (void)viewDidUnload
{
  [super viewDidUnload];
}
 
- (void)viewDidDisappear:(BOOL)animated
{
  [super viewDidDisappear:animated];
  // set signal
  [[_session uiRequestCompleted] signal];
}
 
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
  return YES;
}
 
- (void)dealloc
{
  [super dealloc];
  [[NSNotificationCenter defaultCenter] removeObserver:self];
}
 
#pragma mark -
#pragma mark iOS Keyboard Notification Handlers
 
- (void)keyboardWillShow:(NSNotification *)notification
{
  CGRect keyboardEndFrame =
      [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
  CGRect keyboardFrame = [[self view] convertRect:keyboardEndFrame toView:nil];
 
  [UIView beginAnimations:nil context:NULL];
  [UIView setAnimationCurve:[[[notification userInfo]
                                objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]];
  [UIView
      setAnimationDuration:[[[notification userInfo]
                               objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]];
  CGRect frame = [_scroll_view frame];
  frame.size.height -= keyboardFrame.size.height;
  [_scroll_view setFrame:frame];
  [UIView commitAnimations];
}
 
- (void)keyboardWillHide:(NSNotification *)notification
{
  CGRect keyboardEndFrame =
      [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
  CGRect keyboardFrame = [[self view] convertRect:keyboardEndFrame toView:nil];
 
  [UIView beginAnimations:nil context:NULL];
  [UIView setAnimationCurve:[[[notification userInfo]
                                objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]];
  [UIView
      setAnimationDuration:[[[notification userInfo]
                               objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue]];
  CGRect frame = [_scroll_view frame];
  frame.size.height += keyboardFrame.size.height;
  [_scroll_view setFrame:frame];
  [UIView commitAnimations];
}
 
#pragma mark - Action handlers
 
- (IBAction)loginPressed:(id)sender
{
  // read input back in
  [_params setValue:[_textfield_username text] forKey:@"username"];
  [_params setValue:[_textfield_password text] forKey:@"password"];
  [_params setValue:[_textfield_domain text] forKey:@"domain"];
  [_params setValue:[NSNumber numberWithBool:YES] forKey:@"result"];
 
  // dismiss controller
  [self dismissModalViewControllerAnimated:YES];
}
 
- (IBAction)cancelPressed:(id)sender
{
  [_params setValue:[NSNumber numberWithBool:NO] forKey:@"result"];
 
  // dismiss controller
  [self dismissModalViewControllerAnimated:YES];
}
 
@end