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+//
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+// PAPasscodeViewController.m
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+// PAPasscode
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+//
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+// Created by Denis Hennessy on 15/10/2012.
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+// Copyright (c) 2012 Peer Assembly. All rights reserved.
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+//
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+
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+#import <QuartzCore/QuartzCore.h>
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+#import "PAPasscodeViewController.h"
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+
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+#define NAVBAR_HEIGHT 44
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+#define PROMPT_HEIGHT 74
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+#define DIGIT_SPACING 10
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+#define DIGIT_WIDTH 61
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+#define DIGIT_HEIGHT 53
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+#define MARKER_WIDTH 16
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+#define MARKER_HEIGHT 16
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+#define MARKER_X 22
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+#define MARKER_Y 18
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+#define MESSAGE_HEIGHT 74
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+#define FAILED_LCAP 19
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+#define FAILED_RCAP 19
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+#define FAILED_HEIGHT 26
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+#define FAILED_MARGIN 10
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+#define TEXTFIELD_MARGIN 8
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+#define SLIDE_DURATION 0.3
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+
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+@interface PAPasscodeViewController ()
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+- (void)cancel:(id)sender;
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+- (void)handleFailedAttempt;
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+- (void)handleCompleteField;
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+- (void)passcodeChanged:(id)sender;
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+- (void)resetFailedAttempts;
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+- (void)showFailedAttempts;
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+- (void)showScreenForPhase:(NSInteger)phase animated:(BOOL)animated;
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+@end
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+
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+@implementation PAPasscodeViewController
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+
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+- (id)initForAction:(PasscodeAction)action {
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+ self = [super init];
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+ if (self) {
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+ _action = action;
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+ switch (action) {
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+ case PasscodeActionSet:
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+ self.title = NSLocalizedString(@"Set Passcode", nil);
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+ _enterPrompt = NSLocalizedString(@"Enter a passcode", nil);
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+ _confirmPrompt = NSLocalizedString(@"Re-enter your passcode", nil);
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+ break;
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+
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+ case PasscodeActionEnter:
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+ self.title = NSLocalizedString(@"Enter Passcode", nil);
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+ _enterPrompt = NSLocalizedString(@"Enter your passcode", nil);
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+ break;
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+
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+ case PasscodeActionChange:
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+ self.title = NSLocalizedString(@"Change Passcode", nil);
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+ _changePrompt = NSLocalizedString(@"Enter your old passcode", nil);
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+ _enterPrompt = NSLocalizedString(@"Enter your new passcode", nil);
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+ _confirmPrompt = NSLocalizedString(@"Re-enter your new passcode", nil);
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+ break;
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+ }
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+ self.modalPresentationStyle = UIModalPresentationFormSheet;
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+ _simple = YES;
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+ }
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+ return self;
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+}
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+
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+- (void)loadView {
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+ UIView *view = [[UIView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame];
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+ view.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
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+
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+ UINavigationBar *navigationBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, view.bounds.size.width, NAVBAR_HEIGHT)];
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+ navigationBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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+ navigationBar.items = @[self.navigationItem];
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+ [view addSubview:navigationBar];
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+
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+ contentView = [[UIView alloc] initWithFrame:CGRectMake(0, NAVBAR_HEIGHT, view.bounds.size.width, view.bounds.size.height-NAVBAR_HEIGHT)];
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+ contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
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+ if (_backgroundView) {
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+ [contentView addSubview:_backgroundView];
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+ }
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+ contentView.backgroundColor = [UIColor colorWithWhite:0.9 alpha:1.0];
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+ [view addSubview:contentView];
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+
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+ CGFloat panelWidth = DIGIT_WIDTH*4+DIGIT_SPACING*3;
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+ if (_simple) {
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+ UIView *digitPanel = [[UIView alloc] initWithFrame:CGRectMake(0, 0, panelWidth, DIGIT_HEIGHT)];
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+ digitPanel.frame = CGRectOffset(digitPanel.frame, (contentView.bounds.size.width-digitPanel.bounds.size.width)/2, PROMPT_HEIGHT);
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+ digitPanel.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ [contentView addSubview:digitPanel];
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+
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+ UIImage *backgroundImage = [UIImage imageNamed:@"papasscode_background"];
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+ UIImage *markerImage = [UIImage imageNamed:@"papasscode_marker"];
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+ CGFloat xLeft = 0;
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+ for (int i=0;i<4;i++) {
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+ UIImageView *backgroundImageView = [[UIImageView alloc] initWithImage:backgroundImage];
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+ backgroundImageView.frame = CGRectOffset(backgroundImageView.frame, xLeft, 0);
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+ [digitPanel addSubview:backgroundImageView];
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+ digitImageViews[i] = [[UIImageView alloc] initWithImage:markerImage];
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+ digitImageViews[i].autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ digitImageViews[i].frame = CGRectOffset(digitImageViews[i].frame, backgroundImageView.frame.origin.x+MARKER_X, MARKER_Y);
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+ [digitPanel addSubview:digitImageViews[i]];
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+ xLeft += DIGIT_SPACING + backgroundImage.size.width;
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+ }
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+ passcodeTextField = [[UITextField alloc] initWithFrame:digitPanel.frame];
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+ passcodeTextField.hidden = YES;
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+ } else {
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+ UIView *passcodePanel = [[UIView alloc] initWithFrame:CGRectMake(0, 0, panelWidth, DIGIT_HEIGHT)];
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+ passcodePanel.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ passcodePanel.frame = CGRectOffset(passcodePanel.frame, (contentView.bounds.size.width-passcodePanel.bounds.size.width)/2, PROMPT_HEIGHT);
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+ passcodePanel.frame = CGRectInset(passcodePanel.frame, TEXTFIELD_MARGIN, TEXTFIELD_MARGIN);
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+ passcodePanel.layer.borderColor = [UIColor colorWithRed:0.65 green:0.67 blue:0.70 alpha:1.0].CGColor;
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+ passcodePanel.layer.borderWidth = 1.0;
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+ passcodePanel.layer.cornerRadius = 5.0;
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+ passcodePanel.layer.shadowColor = [UIColor whiteColor].CGColor;
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+ passcodePanel.layer.shadowOffset = CGSizeMake(0, 1);
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+ passcodePanel.layer.shadowOpacity = 1.0;
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+ passcodePanel.layer.shadowRadius = 1.0;
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+ passcodePanel.backgroundColor = [UIColor whiteColor];
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+ [contentView addSubview:passcodePanel];
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+ passcodeTextField = [[UITextField alloc] initWithFrame:CGRectInset(passcodePanel.frame, 6, 6)];
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+ }
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+ passcodeTextField.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ passcodeTextField.borderStyle = UITextBorderStyleNone;
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+ passcodeTextField.secureTextEntry = YES;
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+ passcodeTextField.textColor = [UIColor colorWithRed:0.23 green:0.33 blue:0.52 alpha:1.0];
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+ passcodeTextField.keyboardType = UIKeyboardTypeNumberPad;
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+ [passcodeTextField addTarget:self action:@selector(passcodeChanged:) forControlEvents:UIControlEventEditingChanged];
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+ [contentView addSubview:passcodeTextField];
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+
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+ promptLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, contentView.bounds.size.width, PROMPT_HEIGHT)];
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+ promptLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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+ promptLabel.backgroundColor = [UIColor clearColor];
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+ promptLabel.textColor = [UIColor colorWithRed:0.30 green:0.34 blue:0.42 alpha:1.0];
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+ promptLabel.font = [UIFont boldSystemFontOfSize:17];
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+ promptLabel.shadowColor = [UIColor whiteColor];
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+ promptLabel.shadowOffset = CGSizeMake(0, 1);
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+ promptLabel.textAlignment = UITextAlignmentCenter;
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+ promptLabel.numberOfLines = 0;
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+ [contentView addSubview:promptLabel];
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+
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+ messageLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, PROMPT_HEIGHT+DIGIT_HEIGHT, contentView.bounds.size.width, MESSAGE_HEIGHT)];
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+ messageLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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+ messageLabel.backgroundColor = [UIColor clearColor];
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+ messageLabel.textColor = [UIColor colorWithRed:0.30 green:0.34 blue:0.42 alpha:1.0];
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+ messageLabel.font = [UIFont systemFontOfSize:14];
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+ messageLabel.shadowColor = [UIColor whiteColor];
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+ messageLabel.shadowOffset = CGSizeMake(0, 1);
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+ messageLabel.textAlignment = UITextAlignmentCenter;
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+ messageLabel.numberOfLines = 0;
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+ messageLabel.text = _message;
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+ [contentView addSubview:messageLabel];
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+
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+ UIImage *failedBg = [[UIImage imageNamed:@"papasscode_failed_bg"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, FAILED_LCAP, 0, FAILED_RCAP)];
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+ failedImageView = [[UIImageView alloc] initWithImage:failedBg];
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+ failedImageView.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ failedImageView.hidden = YES;
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+ [contentView addSubview:failedImageView];
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+
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+ failedAttemptsLabel = [[UILabel alloc] initWithFrame:CGRectZero];
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+ failedAttemptsLabel.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin;
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+ failedAttemptsLabel.backgroundColor = [UIColor clearColor];
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+ failedAttemptsLabel.textColor = [UIColor whiteColor];
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+ failedAttemptsLabel.font = [UIFont boldSystemFontOfSize:15];
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+ failedAttemptsLabel.shadowColor = [UIColor blackColor];
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+ failedAttemptsLabel.shadowOffset = CGSizeMake(0, -1);
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+ failedAttemptsLabel.textAlignment = UITextAlignmentCenter;
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+ failedAttemptsLabel.hidden = YES;
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+ [contentView addSubview:failedAttemptsLabel];
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+
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+ self.view = view;
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+}
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+
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+- (void)viewDidLoad {
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+ [super viewDidLoad];
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+
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewControllerDidCancel:)]) {
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+ if (_simple) {
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+ self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancel:)];
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+ } else {
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+ self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancel:)];
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+ }
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+ }
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+
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+ if (_failedAttempts > 0) {
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+ [self showFailedAttempts];
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+ }
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+}
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+
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+- (void)viewWillAppear:(BOOL)animated {
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+ [super viewWillAppear:animated];
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+ [self showScreenForPhase:0 animated:NO];
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+ [passcodeTextField becomeFirstResponder];
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+}
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+
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+- (NSUInteger)supportedInterfaceOrientations {
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+ return UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskPortraitUpsideDown;
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+}
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+
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+- (void)cancel:(id)sender {
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+ [_delegate PAPasscodeViewControllerDidCancel:self];
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+}
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+
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+#pragma mark - implementation helpers
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+
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+- (void)handleCompleteField {
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+ NSString *text = passcodeTextField.text;
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+ switch (_action) {
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+ case PasscodeActionSet:
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+ if (phase == 0) {
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+ _passcode = text;
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+ messageLabel.text = @"";
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+ [self showScreenForPhase:1 animated:YES];
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+ } else {
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+ if ([text isEqualToString:_passcode]) {
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewControllerDidSetPasscode:)]) {
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+ [_delegate PAPasscodeViewControllerDidSetPasscode:self];
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+ }
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+ } else {
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+ [self showScreenForPhase:0 animated:YES];
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+ messageLabel.text = NSLocalizedString(@"Passcodes did not match. Try again.", nil);
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+ }
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+ }
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+ break;
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+
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+ case PasscodeActionEnter:
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+ if ([text isEqualToString:_passcode]) {
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+ [self resetFailedAttempts];
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewControllerDidEnterPasscode:)]) {
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+ [_delegate PAPasscodeViewControllerDidEnterPasscode:self];
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+ }
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+ } else {
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+ if (_alternativePasscode && [text isEqualToString:_alternativePasscode]) {
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+ [self resetFailedAttempts];
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewControllerDidEnterAlternativePasscode:)]) {
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+ [_delegate PAPasscodeViewControllerDidEnterAlternativePasscode:self];
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+ }
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+ } else {
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+ [self handleFailedAttempt];
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+ [self showScreenForPhase:0 animated:NO];
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+ }
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+ }
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+ break;
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+
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+ case PasscodeActionChange:
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+ if (phase == 0) {
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+ if ([text isEqualToString:_passcode]) {
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+ [self resetFailedAttempts];
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+ [self showScreenForPhase:1 animated:YES];
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+ } else {
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+ [self handleFailedAttempt];
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+ [self showScreenForPhase:0 animated:NO];
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+ }
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+ } else if (phase == 1) {
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+ _passcode = text;
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+ messageLabel.text = @"";
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+ [self showScreenForPhase:2 animated:YES];
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+ } else {
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+ if ([text isEqualToString:_passcode]) {
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewControllerDidChangePasscode:)]) {
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+ [_delegate PAPasscodeViewControllerDidChangePasscode:self];
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+ }
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+ } else {
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+ [self showScreenForPhase:1 animated:YES];
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+ messageLabel.text = NSLocalizedString(@"Passcodes did not match. Try again.", nil);
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+ }
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+ }
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+ break;
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+ }
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+}
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+
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+- (void)handleFailedAttempt {
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+ _failedAttempts++;
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+ [self showFailedAttempts];
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+ if ([_delegate respondsToSelector:@selector(PAPasscodeViewController:didFailToEnterPasscode:)]) {
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+ [_delegate PAPasscodeViewController:self didFailToEnterPasscode:_failedAttempts];
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+ }
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+}
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+
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+- (void)resetFailedAttempts {
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+ messageLabel.hidden = NO;
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+ failedImageView.hidden = YES;
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+ failedAttemptsLabel.hidden = YES;
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+ _failedAttempts = 0;
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+}
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+
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+- (void)showFailedAttempts {
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+ messageLabel.hidden = YES;
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+ failedImageView.hidden = NO;
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+ failedAttemptsLabel.hidden = NO;
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+ if (_failedAttempts == 1) {
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+ failedAttemptsLabel.text = NSLocalizedString(@"1 Failed Passcode Attempt", nil);
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+ } else {
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+ failedAttemptsLabel.text = [NSString stringWithFormat:NSLocalizedString(@"%d Failed Passcode Attempts", nil), _failedAttempts];
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+ }
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+ [failedAttemptsLabel sizeToFit];
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+ CGFloat bgWidth = failedAttemptsLabel.bounds.size.width + FAILED_MARGIN*2;
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+ CGFloat x = floor((contentView.bounds.size.width-bgWidth)/2);
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+ CGFloat y = PROMPT_HEIGHT+DIGIT_HEIGHT+floor((MESSAGE_HEIGHT-FAILED_HEIGHT)/2);
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+ failedImageView.frame = CGRectMake(x, y, bgWidth, FAILED_HEIGHT);
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+ x = failedImageView.frame.origin.x+FAILED_MARGIN;
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+ y = failedImageView.frame.origin.y+floor((failedImageView.bounds.size.height-failedAttemptsLabel.frame.size.height)/2);
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+ failedAttemptsLabel.frame = CGRectMake(x, y, failedAttemptsLabel.bounds.size.width, failedAttemptsLabel.bounds.size.height);
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+}
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+
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+- (void)passcodeChanged:(id)sender {
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+ NSString *text = passcodeTextField.text;
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+ if (_simple) {
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+ if ([text length] > 4) {
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+ text = [text substringToIndex:4];
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+ }
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+ for (int i=0;i<4;i++) {
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+ digitImageViews[i].hidden = i >= [text length];
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+ }
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+ if ([text length] == 4) {
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+ [self handleCompleteField];
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+ }
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+ } else {
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+ self.navigationItem.rightBarButtonItem.enabled = [text length] > 0;
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+ }
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+}
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+
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+- (void)showScreenForPhase:(NSInteger)newPhase animated:(BOOL)animated {
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+ CGFloat dir = (newPhase > phase) ? 1 : -1;
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+ if (animated) {
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+ UIGraphicsBeginImageContext(self.view.bounds.size);
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+ [contentView.layer renderInContext:UIGraphicsGetCurrentContext()];
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+ UIImage *snapshot = UIGraphicsGetImageFromCurrentImageContext();
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+ UIGraphicsEndImageContext();
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+ snapshotImageView = [[UIImageView alloc] initWithImage:snapshot];
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+ snapshotImageView.frame = CGRectOffset(snapshotImageView.frame, -contentView.frame.size.width*dir, 0);
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+ [contentView addSubview:snapshotImageView];
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+ }
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+ phase = newPhase;
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+ passcodeTextField.text = @"";
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+ if (!_simple) {
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+ BOOL finalScreen = _action == PasscodeActionSet && phase == 1;
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+ finalScreen |= _action == PasscodeActionEnter && phase == 0;
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+ finalScreen |= _action == PasscodeActionChange && phase == 2;
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+ if (finalScreen) {
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+ self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(handleCompleteField)];
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+ } else {
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+ self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"Next", nil) style:UIBarButtonItemStyleBordered target:self action:@selector(handleCompleteField)];
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+ }
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+ self.navigationItem.rightBarButtonItem.enabled = NO;
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+ }
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+
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+ switch (_action) {
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+ case PasscodeActionSet:
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+ if (phase == 0) {
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+ promptLabel.text = _enterPrompt;
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+ } else {
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+ promptLabel.text = _confirmPrompt;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+
|
|
|
+ case PasscodeActionEnter:
|
|
|
+ promptLabel.text = _enterPrompt;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case PasscodeActionChange:
|
|
|
+ if (phase == 0) {
|
|
|
+ promptLabel.text = _changePrompt;
|
|
|
+ } else if (phase == 1) {
|
|
|
+ promptLabel.text = _enterPrompt;
|
|
|
+ } else {
|
|
|
+ promptLabel.text = _confirmPrompt;
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ for (int i=0;i<4;i++) {
|
|
|
+ digitImageViews[i].hidden = YES;
|
|
|
+ }
|
|
|
+ if (animated) {
|
|
|
+ contentView.frame = CGRectOffset(contentView.frame, contentView.frame.size.width*dir, 0);
|
|
|
+ [UIView animateWithDuration:SLIDE_DURATION animations:^() {
|
|
|
+ contentView.frame = CGRectOffset(contentView.frame, -contentView.frame.size.width*dir, 0);
|
|
|
+ } completion:^(BOOL finished) {
|
|
|
+ [snapshotImageView removeFromSuperview];
|
|
|
+ snapshotImageView = nil;
|
|
|
+ }];
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+@end
|
Gleb Pinigin
