EditSecretTextTableViewCell.m

/*
 Custom table cell with secret edit text field
 
 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 "EditSecretTextTableViewCell.h"
 
@implementation EditSecretTextTableViewCell
 
@synthesize label = _label, textfield = _textfield;
 
- (void)awakeFromNib
{
  [super awakeFromNib];
  [_unhide_button setTitle:NSLocalizedString(@"Unhide", @"Button title 'Unhide'")
                  forState:UIControlStateNormal];
  [_unhide_button addTarget:self
                     action:@selector(togglePasswordMode:)
           forControlEvents:UIControlEventTouchUpInside];
}
 
- (void)setEnabled:(BOOL)enabled
{
  [_label setEnabled:enabled];
  [_textfield setEnabled:enabled];
  [_unhide_button setEnabled:enabled];
}
 
#pragma mark - action handlers
- (void)togglePasswordMode:(id)sender
{
  BOOL isSecure = [_textfield isSecureTextEntry];
 
  if (isSecure)
  {
    [_unhide_button setTitle:NSLocalizedString(@"Hide", @"Button title 'Hide'")
                    forState:UIControlStateNormal];
    [_textfield setSecureTextEntry:NO];
  }
  else
  {
    BOOL first_responder = [_textfield isFirstResponder];
    // little trick to make non-secure to secure transition working - this seems to be an ios
    // bug:
    // http://stackoverflow.com/questions/6710019/uitextfield-securetextentry-works-going-from-yes-to-no-but-changing-back-to-y
    [_textfield setEnabled:NO];
    [_unhide_button setTitle:NSLocalizedString(@"Unhide", @"Button title 'Unhide'")
                    forState:UIControlStateNormal];
    [_textfield setSecureTextEntry:YES];
    [_textfield setEnabled:YES];
    if (first_responder)
      [_textfield becomeFirstResponder];
  }
}
 
@end