code.grnet.gr Git - pithos-ios/blob - Classes/PasscodeViewController.m

   1 //
   2 //  PasscodeViewController.m
   3 //  OpenStack
   4 //
   5 //  Created by Mike Mayo on 10/26/10.
   6 //  The OpenStack project is provided under the Apache 2.0 license.
   7 //
   8
   9 #import "PasscodeViewController.h"
  10 #import "UIViewController+Conveniences.h"
  11 #import "UIColor+MoreColors.h"
  12 #import "Keychain.h"
  13 #import "PasscodeLockViewController.h"
  14 #import "SettingsViewController.h"
  15 #import <QuartzCore/QuartzCore.h>
  16 #import "Archiver.h"
  17 #import "RootViewController.h"
  18 #import "OpenStackAccount.h"
  19 #import "OpenStackAppDelegate.h"
  20
  21 @implementation PasscodeViewController
  22
  23 @synthesize mode, passcodeLockViewController, settingsViewController, rootViewController;
  24
  25 #pragma mark - View lifecycle
  26
  27 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
  28     return ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) || (toInterfaceOrientation == UIInterfaceOrientationPortrait);
  29 }
  30
  31 - (void)viewDidLoad {
  32     [super viewDidLoad];
  33     simplePasscodeOn = [[Keychain getStringForKey:@"passcode_lock_simple_passcode_on"] isEqualToString:@"YES"];
  34     passcodeLockOn = [[Keychain getStringForKey:@"passcode_lock_passcode_on"] isEqualToString:@"YES"];
  35     eraseData = [[Keychain getStringForKey:@"passcode_lock_erase_data_on"] isEqualToString:@"YES"];
  36
  37     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
  38         viewWidth = 540.0;
  39     } else {
  40         viewWidth = 320.0;
  41     }
  42 }
  43
  44 - (void)viewWillAppear:(BOOL)animated {
  45     [super viewWillAppear:animated];
  46
  47     enterPasscodeTextField = [self allocAndInitPasscodeTextField];
  48     setPasscodeTextField = [self allocAndInitPasscodeTextField];
  49     confirmPasscodeTextField = [self allocAndInitPasscodeTextField];
  50
  51     tableViews = [[NSMutableArray alloc] init];
  52     textFields = [[NSMutableArray alloc] init];
  53     squares = [[NSMutableArray alloc] init];
  54
  55     if (mode == kModeSetPasscode || mode == kModeChangePasscode) {
  56         // we're setting the passcode, so add possibly all of the table views
  57         if (passcodeLockOn) {
  58             enterPasscodeTableView.tableHeaderView = [self passwordHeaderViewForTextField:enterPasscodeTextField];
  59             [tableViews addObject:enterPasscodeTableView];
  60             [textFields addObject:enterPasscodeTextField];
  61             if (simplePasscodeOn) {
  62                 [squares addObject:[self createSquares]];
  63                 for (int i = 0; i < [[squares lastObject] count]; i++) {
  64                     [enterPasscodeTableView.tableHeaderView addSubview:[[squares lastObject] objectAtIndex:i]];
  65                 }
  66             }
  67         }
  68         setPasscodeTableView.tableHeaderView = [self passwordHeaderViewForTextField:setPasscodeTextField];
  69         [tableViews addObject:setPasscodeTableView];
  70         [textFields addObject:setPasscodeTextField];
  71         if (simplePasscodeOn) {
  72             [squares addObject:[self createSquares]];
  73             for (int i = 0; i < [[squares lastObject] count]; i++) {
  74                 [setPasscodeTableView.tableHeaderView addSubview:[[squares lastObject] objectAtIndex:i]];
  75             }
  76         }
  77         confirmPasscodeTableView.tableHeaderView = [self passwordHeaderViewForTextField:confirmPasscodeTextField];
  78         [tableViews addObject:confirmPasscodeTableView];
  79         [textFields addObject:confirmPasscodeTextField];
  80         if (simplePasscodeOn) {
  81             [squares addObject:[self createSquares]];
  82             for (int i = 0; i < [[squares lastObject] count]; i++) {
  83                 [confirmPasscodeTableView.tableHeaderView addSubview:[[squares lastObject] objectAtIndex:i]];
  84             }
  85         }
  86     } else {
  87         enterPasscodeTableView.tableHeaderView = [self passwordHeaderViewForTextField:enterPasscodeTextField];
  88         [tableViews addObject:enterPasscodeTableView];
  89         [textFields addObject:enterPasscodeTextField];
  90         if (simplePasscodeOn) {
  91             [squares addObject:[self createSquares]];
  92             for (int i = 0; i < [[squares lastObject] count]; i++) {
  93                 [enterPasscodeTableView.tableHeaderView addSubview:[[squares lastObject] objectAtIndex:i]];
  94             }
  95         }
  96     }
  97
  98     [self.view addSubview:[tableViews objectAtIndex:0]];
  99
 100     // shift any extra table views away
 101     for (int i = 1; i < [tableViews count]; i++) {
 102         UITableView *tableView = [tableViews objectAtIndex:i];
 103         tableView.frame = CGRectMake(tableView.frame.origin.x + viewWidth, tableView.frame.origin.y, tableView.frame.size.width, tableView.frame.size.height);
 104         [self.view addSubview:tableView];
 105     }
 106
 107     if (!simplePasscodeOn) {
 108         if (tableIndex == [tableViews count] - 1) {
 109             [self addDoneButton];
 110         } else {
 111             [self addNextButton];
 112         }
 113     }
 114
 115     [[textFields objectAtIndex:0] becomeFirstResponder];
 116     [[tableViews objectAtIndex:0] reloadData];
 117     [[textFields objectAtIndex:[tableViews count] - 1] setReturnKeyType:UIReturnKeyDone];
 118
 119     // table looks all screwy on iPad at first, so shuffle around to get the drawing right
 120     // yes, i know this is a dirty hack.
 121     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
 122         if ([tableViews count] > 1) {
 123             [self moveToNextTableView];
 124             [self moveToPreviousTableView];
 125         } else {
 126             UITableView *tv = [tableViews objectAtIndex:0];
 127             tv.frame = CGRectMake(tv.frame.origin.x, tv.frame.origin.y, 768.0, 960.0);
 128         }
 129     }
 130 }
 131
 132 #pragma mark - Memory management
 133
 134 - (void)dealloc {
 135
 136     [enterPasscodeTextField release];
 137     [setPasscodeTextField release];
 138     [confirmPasscodeTextField release];
 139     [tableViews release];
 140     [textFields release];
 141     [squares release];
 142     [passcodeLockViewController release];
 143     [settingsViewController release];
 144     [rootViewController release];
 145     [super dealloc];
 146 }
 147
 148 #pragma mark - Internal
 149
 150 - (UITextField *)allocAndInitPasscodeTextField {
 151     UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(29.0, 13.0, 271.0, 24.0)];
 152     textField.text = @"";
 153     textField.textColor = [UIColor value1DetailTextLabelColor];
 154     textField.secureTextEntry = YES;
 155     textField.delegate = self;
 156     textField.keyboardAppearance = UIKeyboardAppearanceAlert;
 157     return textField;
 158 }
 159
 160 - (UIView *)passwordHeaderViewForTextField:(UITextField *)textField {
 161     if (simplePasscodeOn) {
 162         textField.keyboardType = UIKeyboardTypeNumberPad;
 163         // hide the text field and add it to the view.  we'll use the squares, but we need a text field
 164         textField.hidden = YES;
 165         [self.view addSubview:textField];
 166     } else {
 167         textField.keyboardType = UIKeyboardTypeDefault;
 168         textField.returnKeyType = UIReturnKeyNext;
 169     }
 170
 171     UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, viewWidth, 70.0)] autorelease];
 172     UILabel *headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 27.5, viewWidth, 30.0)];
 173     headerLabel.textColor = [UIColor tableViewHeaderColor];
 174     headerLabel.backgroundColor = [UIColor clearColor];
 175     headerLabel.textAlignment = UITextAlignmentCenter;
 176     headerLabel.font = [UIFont boldSystemFontOfSize:17.0];
 177     headerLabel.shadowOffset = CGSizeMake(0, 1.0);
 178     headerLabel.shadowColor = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0];
 179
 180     if ([textField isEqual:enterPasscodeTextField]) {
 181         NSString *text = @"1 Failed Passcode Attempt";
 182         CGSize size = [text sizeWithFont:[UIFont boldSystemFontOfSize:14.0]];
 183         failedAttemptsView = [[UIView alloc] initWithFrame:CGRectMake((viewWidth - (size.width + 36.0)) / 2, 147.5, size.width + 36.0, size.height + 10.0)];
 184         failedAttemptsLabel = [[UILabel alloc] initWithFrame:CGRectMake((viewWidth - (size.width + 36.0)) / 2, 147.5, size.width + 36.0, size.height + 10.0)];
 185         failedAttemptsLabel.backgroundColor = [UIColor clearColor];
 186         failedAttemptsLabel.textColor = [UIColor whiteColor];
 187         failedAttemptsLabel.text = text;
 188         failedAttemptsLabel.font = [UIFont boldSystemFontOfSize:14.0];
 189         failedAttemptsLabel.textAlignment = UITextAlignmentCenter;
 190         failedAttemptsLabel.shadowOffset = CGSizeMake(0, -1.0);
 191         failedAttemptsLabel.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:1.0];
 192         failedAttemptsView.layer.cornerRadius = 14;
 193         failedAttemptsView.layer.borderWidth = 1.0;
 194         failedAttemptsView.layer.borderColor = [[UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.25] CGColor];
 195
 196         failedAttemptsLabel.hidden = YES;
 197         failedAttemptsView.hidden = YES;
 198
 199         CAGradientLayer *gradient = [CAGradientLayer layer];
 200         gradient.frame = failedAttemptsView.bounds;
 201         gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor colorWithRed:0.714 green:0.043 blue:0.043 alpha:1.0] CGColor],
 202                            (id)[[UIColor colorWithRed:0.761 green:0.192 blue:0.192 alpha:1.0] CGColor], nil];
 203         [failedAttemptsView.layer insertSublayer:gradient atIndex:1];
 204         failedAttemptsView.layer.masksToBounds = YES;
 205
 206         [headerView addSubview:failedAttemptsView];
 207         [headerView addSubview:failedAttemptsLabel];
 208
 209         [failedAttemptsView release];
 210         [failedAttemptsLabel release];
 211     } else if ([textField isEqual:setPasscodeTextField]) {
 212         passcodeConfirmationWarningLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 146.5, viewWidth, 30.0)];
 213         passcodeConfirmationWarningLabel.textColor = [UIColor tableViewHeaderColor];
 214         passcodeConfirmationWarningLabel.backgroundColor = [UIColor clearColor];
 215         passcodeConfirmationWarningLabel.textAlignment = UITextAlignmentCenter;
 216         passcodeConfirmationWarningLabel.font = [UIFont systemFontOfSize:14.0];
 217         passcodeConfirmationWarningLabel.shadowOffset = CGSizeMake(0, 1.0);
 218         passcodeConfirmationWarningLabel.shadowColor = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0];
 219         passcodeConfirmationWarningLabel.text = @"";
 220         passcodeConfirmationWarningLabel.numberOfLines = 0;
 221         passcodeConfirmationWarningLabel.lineBreakMode = UILineBreakModeWordWrap;
 222         [headerView addSubview:passcodeConfirmationWarningLabel];
 223     }
 224
 225     if (mode == kModeSetPasscode) {
 226         self.navigationItem.title = @"Set Passcode";
 227         [self addCancelButton];
 228         if ([textField isEqual:enterPasscodeTextField]) {
 229             headerLabel.text = @"Enter your passcode";
 230         } else if ([textField isEqual:setPasscodeTextField]) {
 231             headerLabel.text = @"Enter a passcode";
 232             [self addCancelButton];
 233         } else if ([textField isEqual:confirmPasscodeTextField]) {
 234             headerLabel.text = @"Re-enter your passcode";
 235         }
 236     } else if (mode == kModeDisablePasscode) {
 237         self.navigationItem.title = @"Turn off Passcode";
 238         [self addCancelButton];
 239         headerLabel.text = @"Enter your passcode";
 240     } else if (mode == kModeChangePasscode) {
 241         self.navigationItem.title = @"Change Passcode";
 242         [self addCancelButton];
 243         if ([textField isEqual:enterPasscodeTextField]) {
 244             headerLabel.text = @"Enter your old passcode";
 245         } else if ([textField isEqual:setPasscodeTextField]) {
 246             headerLabel.text = @"Enter your new passcode";
 247         } else {
 248             headerLabel.text = @"Re-enter your new passcode";
 249         }
 250     } else {
 251         self.navigationItem.title = @"Enter Passcode";
 252         headerLabel.text = @"Enter your passcode";
 253     }
 254
 255     [headerView addSubview:headerLabel];
 256     [headerLabel release];
 257
 258     return headerView;
 259 }
 260
 261 - (NSArray *)createSquares {
 262     NSMutableArray *squareViews = [[NSMutableArray alloc] initWithCapacity:4];
 263     NSInteger squareX = 23.0;
 264     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
 265         squareX = 133.0;
 266     }
 267
 268     for (int i = 0; i < 4; i++) {
 269         UIImageView *square = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"passcode_square_empty.png"]];
 270         square.frame = CGRectMake(squareX, 74.0, 61.0, 53.0);
 271         [squareViews addObject:square];
 272         [square release];
 273         squareX += 71.0;
 274     }
 275     return [NSArray arrayWithArray:squareViews];
 276 }
 277
 278 - (void)moveToNextTableView {
 279     tableIndex += 1;
 280     UITableView *oldTableView = [tableViews objectAtIndex:tableIndex - 1];
 281     UITableView *newTableView = [tableViews objectAtIndex:tableIndex];
 282     newTableView.frame = CGRectMake(oldTableView.frame.origin.x + viewWidth, oldTableView.frame.origin.y, oldTableView.frame.size.width, oldTableView.frame.size.height);
 283
 284     if (simplePasscodeOn) {
 285         for (int i = 0; i < 4; i++) {
 286             [[[squares objectAtIndex:tableIndex] objectAtIndex:i] setImage:[UIImage imageNamed:@"passcode_square_empty.png"]];
 287         }
 288     }
 289
 290     [UIView animateWithDuration:0.25 animations:^{
 291         oldTableView.frame = CGRectMake(oldTableView.frame.origin.x - viewWidth, oldTableView.frame.origin.y, oldTableView.frame.size.width, oldTableView.frame.size.height);
 292         newTableView.frame = self.view.frame;
 293     }];
 294
 295     if (!simplePasscodeOn) {
 296         if (tableIndex == [tableViews count] - 1) {
 297             [self addDoneButton];
 298         } else {
 299             [self addNextButton];
 300         }
 301     }
 302
 303     [[textFields objectAtIndex:tableIndex - 1] resignFirstResponder];
 304     [[textFields objectAtIndex:tableIndex] becomeFirstResponder];
 305 }
 306
 307 - (void)moveToPreviousTableView {
 308     tableIndex -= 1;
 309     UITableView *oldTableView = [tableViews objectAtIndex:tableIndex + 1];
 310     UITableView *newTableView = [tableViews objectAtIndex:tableIndex];
 311     newTableView.frame = CGRectMake(oldTableView.frame.origin.x - viewWidth, oldTableView.frame.origin.y, oldTableView.frame.size.width, oldTableView.frame.size.height);
 312
 313     if (simplePasscodeOn) {
 314         for (int i = 0; i < 4; i++) {
 315             [[[squares objectAtIndex:tableIndex] objectAtIndex:i] setImage:[UIImage imageNamed:@"passcode_square_empty.png"]];
 316         }
 317     }
 318
 319     [UIView animateWithDuration:0.25 animations:^{
 320         oldTableView.frame = CGRectMake(oldTableView.frame.origin.x + viewWidth, oldTableView.frame.origin.y, oldTableView.frame.size.width, oldTableView.frame.size.height);
 321         newTableView.frame = self.view.frame;
 322     }];
 323
 324     if (!simplePasscodeOn) {
 325         if (tableIndex == [tableViews count] - 1) {
 326             [self addDoneButton];
 327         } else {
 328             [self addNextButton];
 329         }
 330     }
 331
 332     [[textFields objectAtIndex:tableIndex + 1] resignFirstResponder];
 333     [[textFields objectAtIndex:tableIndex] becomeFirstResponder];
 334 }
 335
 336 - (void)incrementAndShowFailedAttemptsLabel {
 337     enterPasscodeTextField.text = @"";
 338     if (simplePasscodeOn) {
 339         for (int i = 0; i < 4; i++) {
 340             [[[squares objectAtIndex:tableIndex] objectAtIndex:i] setImage:[UIImage imageNamed:@"passcode_square_empty.png"]];
 341         }
 342     }
 343
 344     failedAttemptsCount += 1;
 345     if (failedAttemptsCount == 1) {
 346         failedAttemptsLabel.text = @"1 Failed Passcode Attempt";
 347     } else {
 348         failedAttemptsLabel.text = [NSString stringWithFormat:@"%i Failed Passcode Attempts", failedAttemptsCount];
 349     }
 350     CGSize size = [failedAttemptsLabel.text sizeWithFont:[UIFont boldSystemFontOfSize:14.0]];
 351     failedAttemptsView.frame = CGRectMake((viewWidth - (size.width + 36.0)) / 2, 147.5, size.width + 36.0, size.height + 10.0);
 352     failedAttemptsLabel.frame = CGRectMake((viewWidth - (size.width + 36.0)) / 2, 147.5, size.width + 36.0, size.height + 10.0);
 353
 354     CAGradientLayer *gradient = [CAGradientLayer layer];
 355     gradient.frame = failedAttemptsView.bounds;
 356     gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor colorWithRed:0.714 green:0.043 blue:0.043 alpha:1.0] CGColor],
 357                        (id)[[UIColor colorWithRed:0.761 green:0.192 blue:0.192 alpha:1.0] CGColor], nil];
 358     [failedAttemptsView.layer insertSublayer:gradient atIndex:0];
 359     failedAttemptsView.layer.masksToBounds = YES;
 360
 361     failedAttemptsLabel.hidden = NO;
 362     failedAttemptsView.hidden = NO;
 363
 364     if (failedAttemptsCount == 10 && eraseData) {
 365         [Archiver deleteEverything];
 366         [OpenStackAccount persist:[NSMutableArray array]];
 367         if ([Keychain setString:@"NO" forKey:@"passcode_lock_passcode_on"]) {
 368             [Keychain setString:@"" forKey:@"passcode_lock_passcode"];
 369         }
 370         [self dismissModalViewControllerAnimated:YES];
 371         if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
 372             [UIView animateWithDuration:0.5 delay:0.25 options:0 animations:^{
 373                 OpenStackAppDelegate *app = [[UIApplication sharedApplication] delegate];
 374                 for (UIViewController *svc in app.splitViewController.viewControllers) {
 375                     svc.view.alpha = 1.0;
 376                 }
 377             } completion:^(BOOL finished){}];
 378         }
 379
 380         [self alert:@"" message:@"You have entered an incorrect passcode too many times. All account data in this app have been deleted."];
 381         if (self.rootViewController) {
 382             [[self.rootViewController navigationController] popToRootViewControllerAnimated:NO];
 383             [[self.rootViewController tableView] reloadData];
 384         }
 385     }
 386 }
 387
 388 #pragma mark - UITableViewDataSource
 389
 390 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 391     return simplePasscodeOn ? 0 : 1;
 392 }
 393
 394 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 395     return 1;
 396 }
 397
 398 - (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 399     static NSString *CellIdentifier = @"Cell";
 400
 401     UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];
 402     if (cell == nil) {
 403         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
 404         cell.selectionStyle = UITableViewCellSelectionStyleNone;
 405     }
 406
 407     // Configure the cell...
 408     if ([aTableView isEqual:enterPasscodeTableView]) {
 409         cell.accessoryView = enterPasscodeTextField;
 410     } else if ([aTableView isEqual:setPasscodeTableView]) {
 411         cell.accessoryView = setPasscodeTextField;
 412     } else if ([aTableView isEqual:confirmPasscodeTableView]) {
 413         cell.accessoryView = confirmPasscodeTextField;
 414     }
 415
 416     return cell;
 417 }
 418
 419 #pragma mark - UITextFieldDelegate
 420
 421 //- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
 422 //    // we don't want iPad users to be able to dismiss the keyboard at all
 423 //    return NO;
 424 //}
 425
 426 - (BOOL)textFieldShouldReturn:(UITextField *)textField {
 427     if ([textField isEqual:[textFields lastObject]]) {
 428         [self doneButtonPressed:nil];
 429     } else {
 430         [self nextButtonPressed:nil];
 431     }
 432     return NO;
 433 }
 434
 435 - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
 436     // if we're in simple passcode mode, update the squares to show entered numbers
 437     if (simplePasscodeOn) {
 438         NSString *result = [textField.text stringByReplacingCharactersInRange:range withString:string];
 439
 440         // we're setting here and returning no since i'm messing with the responder chain.
 441         // otherwise the last character will become the first character of the next textField
 442         textField.text = result;
 443
 444         for (int i = 0; i < 4; i++) {
 445             UIImageView *square = [[squares objectAtIndex:tableIndex] objectAtIndex:i];
 446             if (i < [result length]) {
 447                 square.image = [UIImage imageNamed:@"passcode_square_filled.png"];
 448             } else {
 449                 square.image = [UIImage imageNamed:@"passcode_square_empty.png"];
 450             }
 451         }
 452
 453         // if we're at 4 characters, it could be time to move on to confirming
 454         if ([result length] == 4) {
 455             if (mode == kModeDisablePasscode) {
 456                 NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 457                 if ([enterPasscodeTextField.text isEqualToString:passcode]) {
 458                     if ([Keychain setString:@"NO" forKey:@"passcode_lock_passcode_on"]) {
 459                         [Keychain setString:@"" forKey:@"passcode_lock_passcode"];
 460                     }
 461                     [self.passcodeLockViewController.tableView reloadData];
 462                     [self.settingsViewController.tableView reloadData];
 463                     [self dismissModalViewControllerAnimated:YES];
 464                 } else {
 465                     [self incrementAndShowFailedAttemptsLabel];
 466                 }
 467             } else if (mode == kModeEnterPasscode) {
 468                 NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 469                 if ([enterPasscodeTextField.text isEqualToString:passcode]) {
 470                     if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
 471                         [UIView animateWithDuration:0.5 delay:0.25 options:0 animations:^{
 472                             OpenStackAppDelegate *app = [[UIApplication sharedApplication] delegate];
 473                             for (UIViewController *svc in app.splitViewController.viewControllers) {
 474                                 svc.view.alpha = 1.0;
 475                             }
 476                         } completion:^(BOOL finished){}];
 477                     }
 478                     [self dismissModalViewControllerAnimated:YES];
 479                 } else {
 480                     [self incrementAndShowFailedAttemptsLabel];
 481                 }
 482             } else if (mode == kModeChangePasscode) {
 483                 NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 484                 if ([textField isEqual:enterPasscodeTextField]) {
 485                     if ([passcode isEqualToString:enterPasscodeTextField.text]) {
 486                         [self moveToNextTableView];
 487                     } else {
 488                         [self incrementAndShowFailedAttemptsLabel];
 489                     }
 490                 } else if ([textField isEqual:setPasscodeTextField]) {
 491                     if ([passcode isEqualToString:setPasscodeTextField.text]) {
 492                         setPasscodeTextField.text = @"";
 493                         for (int i = 0; i < 4; i++) {
 494                             [[[squares objectAtIndex:tableIndex] objectAtIndex:i] setImage:[UIImage imageNamed:@"passcode_square_empty.png"]];
 495                         }
 496                         passcodeConfirmationWarningLabel.text = @"Enter a different passcode. Cannot re-use the same passcode.";
 497                         passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 131.5, viewWidth, 60.0);
 498                     } else {
 499                         passcodeConfirmationWarningLabel.text = @"";
 500                         passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 146.5, viewWidth, 30.0);
 501                         [self moveToNextTableView];
 502                     }
 503                 } else if ([textField isEqual:confirmPasscodeTextField]) {
 504                     if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 505                         confirmPasscodeTextField.text = @"";
 506                         setPasscodeTextField.text = @"";
 507                         passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 508                         [self moveToPreviousTableView];
 509                     } else {
 510                         if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 511                             [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 512                         }
 513                         [self.passcodeLockViewController.tableView reloadData];
 514                         [self.settingsViewController.tableView reloadData];
 515                         [self dismissModalViewControllerAnimated:YES];
 516                     }
 517                 }
 518             } else if ([textField isEqual:setPasscodeTextField]) {
 519                 [self moveToNextTableView];
 520             } else if ([textField isEqual:confirmPasscodeTextField]) {
 521                 if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 522                     confirmPasscodeTextField.text = @"";
 523                     setPasscodeTextField.text = @"";
 524                     passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 525                     [self moveToPreviousTableView];
 526                 } else {
 527                     if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 528                         [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 529                     }
 530                     [self.passcodeLockViewController.tableView reloadData];
 531                     [self.settingsViewController.tableView reloadData];
 532                     [self dismissModalViewControllerAnimated:YES];
 533                 }
 534             }
 535         }
 536
 537         return NO;
 538     }
 539
 540     return YES;
 541 }
 542
 543 #pragma mark - Button Handlers
 544
 545 - (void)nextButtonPressed:(id)sender {
 546     UITextField *textField = [textFields objectAtIndex:tableIndex];
 547     if (![textField.text isEqualToString:@""]) {
 548         if (mode == kModeSetPasscode) {
 549             if ([textField isEqual:setPasscodeTextField]) {
 550                 [self moveToNextTableView];
 551             } else if ([textField isEqual:confirmPasscodeTextField]) {
 552                 if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 553                     confirmPasscodeTextField.text = @"";
 554                     setPasscodeTextField.text = @"";
 555                     passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 556                     [self moveToPreviousTableView];
 557                 } else {
 558                     if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 559                         [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 560                     }
 561                     [self.passcodeLockViewController.tableView reloadData];
 562                     [self.settingsViewController.tableView reloadData];
 563                     [self dismissModalViewControllerAnimated:YES];
 564                 }
 565             }
 566         } else if (mode == kModeChangePasscode) {
 567             NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 568             if ([textField isEqual:enterPasscodeTextField]) {
 569                 if ([passcode isEqualToString:enterPasscodeTextField.text]) {
 570                     [self moveToNextTableView];
 571                 } else {
 572                     [self incrementAndShowFailedAttemptsLabel];
 573                 }
 574             } else if ([textField isEqual:setPasscodeTextField]) {
 575                 if ([passcode isEqualToString:setPasscodeTextField.text]) {
 576                     setPasscodeTextField.text = @"";
 577                     passcodeConfirmationWarningLabel.text = @"Enter a different passcode. Cannot re-use the same passcode.";
 578                     passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 131.5, viewWidth, 60.0);
 579                 } else {
 580                     passcodeConfirmationWarningLabel.text = @"";
 581                     passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 146.5, viewWidth, 30.0);
 582                     [self moveToNextTableView];
 583                 }
 584             } else if ([textField isEqual:confirmPasscodeTextField]) {
 585                 if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 586                     confirmPasscodeTextField.text = @"";
 587                     setPasscodeTextField.text = @"";
 588                     passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 589                     [self moveToPreviousTableView];
 590                 } else {
 591                     if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 592                         [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 593                     }
 594                     [self.passcodeLockViewController.tableView reloadData];
 595                     [self.settingsViewController.tableView reloadData];
 596                     [self dismissModalViewControllerAnimated:YES];
 597                 }
 598             }
 599         }
 600     }
 601 }
 602
 603 - (void)doneButtonPressed:(id)sender {
 604     UITextField *textField = [textFields objectAtIndex:tableIndex];
 605     if (mode == kModeEnterPasscode) {
 606         NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 607         if ([enterPasscodeTextField.text isEqualToString:passcode]) {
 608             if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
 609                 [UIView animateWithDuration:0.5 delay:0.25 options:0 animations:^{
 610                     OpenStackAppDelegate *app = [[UIApplication sharedApplication] delegate];
 611                     for (UIViewController *svc in app.splitViewController.viewControllers) {
 612                         svc.view.alpha = 1.0;
 613                     }
 614                 } completion:^(BOOL finished){}];
 615             }
 616             [self dismissModalViewControllerAnimated:YES];
 617         } else {
 618             [self incrementAndShowFailedAttemptsLabel];
 619         }
 620     } else if (mode == kModeSetPasscode) {
 621         if ([textField isEqual:setPasscodeTextField]) {
 622             [self moveToNextTableView];
 623         } else if ([textField isEqual:confirmPasscodeTextField]) {
 624             if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 625                 confirmPasscodeTextField.text = @"";
 626                 setPasscodeTextField.text = @"";
 627                 passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 628                 [self moveToPreviousTableView];
 629             } else {
 630                 if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 631                     [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 632                 }
 633                 [self.passcodeLockViewController.tableView reloadData];
 634                 [self.settingsViewController.tableView reloadData];
 635                 [self dismissModalViewControllerAnimated:YES];
 636             }
 637         }
 638     } else if (mode == kModeChangePasscode) {
 639         NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 640         if ([textField isEqual:enterPasscodeTextField]) {
 641             if ([passcode isEqualToString:enterPasscodeTextField.text]) {
 642                 [self moveToNextTableView];
 643             } else {
 644                 [self incrementAndShowFailedAttemptsLabel];
 645             }
 646         } else if ([textField isEqual:setPasscodeTextField]) {
 647             if ([passcode isEqualToString:setPasscodeTextField.text]) {
 648                 setPasscodeTextField.text = @"";
 649                 passcodeConfirmationWarningLabel.text = @"Enter a different passcode. Cannot re-use the same passcode.";
 650                 passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 131.5, viewWidth, 60.0);
 651             } else {
 652                 passcodeConfirmationWarningLabel.text = @"";
 653                 passcodeConfirmationWarningLabel.frame = CGRectMake(0.0, 146.5, viewWidth, 30.0);
 654                 [self moveToNextTableView];
 655             }
 656         } else if ([textField isEqual:confirmPasscodeTextField]) {
 657             if (![confirmPasscodeTextField.text isEqualToString:setPasscodeTextField.text]) {
 658                 confirmPasscodeTextField.text = @"";
 659                 setPasscodeTextField.text = @"";
 660                 passcodeConfirmationWarningLabel.text = @"Passcodes did not match. Try again.";
 661                 [self moveToPreviousTableView];
 662             } else {
 663                 if ([Keychain setString:setPasscodeTextField.text forKey:@"passcode_lock_passcode"]) {
 664                     [Keychain setString:@"YES" forKey:@"passcode_lock_passcode_on"];
 665                 }
 666                 [self.passcodeLockViewController.tableView reloadData];
 667                 [self.settingsViewController.tableView reloadData];
 668                 [self dismissModalViewControllerAnimated:YES];
 669             }
 670         }
 671     } else if (mode == kModeDisablePasscode) {
 672         NSString *passcode = [Keychain getStringForKey:@"passcode_lock_passcode"];
 673         if ([enterPasscodeTextField.text isEqualToString:passcode]) {
 674             if ([Keychain setString:@"NO" forKey:@"passcode_lock_passcode_on"]) {
 675                 [Keychain setString:@"" forKey:@"passcode_lock_passcode"];
 676             }
 677             [self.passcodeLockViewController.tableView reloadData];
 678             [self.settingsViewController.tableView reloadData];
 679             [self dismissModalViewControllerAnimated:YES];
 680         } else {
 681             [self incrementAndShowFailedAttemptsLabel];
 682         }
 683     }
 684 }
 685
 686 @end