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//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "SAEScreenLockViewController.h"
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#import "UIColor+OWS.h"
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#import <SignalMessaging/SignalMessaging-Swift.h>
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#import <SessionServiceKit/AppContext.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface SAEScreenLockViewController () <ScreenLockViewDelegate>
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@property (nonatomic, readonly, weak) id<ShareViewDelegate> shareViewDelegate;
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@property (nonatomic) BOOL hasShownAuthUIOnce;
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@property (nonatomic) BOOL isShowingAuthUI;
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@end
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#pragma mark -
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@implementation SAEScreenLockViewController
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- (instancetype)initWithShareViewDelegate:(id<ShareViewDelegate>)shareViewDelegate
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_shareViewDelegate = shareViewDelegate;
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self.delegate = self;
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return self;
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}
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- (void)loadView
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{
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[super loadView];
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UIView.appearance.tintColor = LKColors.text;
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// Loki: Set gradient background
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self.view.backgroundColor = UIColor.clearColor;
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CAGradientLayer *layer = [CAGradientLayer new];
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layer.frame = UIScreen.mainScreen.bounds;
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UIColor *gradientStartColor = LKAppModeUtilities.isLightMode ? [UIColor colorWithRGBHex:0xFCFCFC] : [UIColor colorWithRGBHex:0x171717];
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UIColor *gradientEndColor = LKAppModeUtilities.isLightMode ? [UIColor colorWithRGBHex:0xFFFFFF] : [UIColor colorWithRGBHex:0x121212];
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layer.colors = @[ (id)gradientStartColor.CGColor, (id)gradientEndColor.CGColor ];
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[self.view.layer insertSublayer:layer atIndex:0];
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// Loki: Set navigation bar background color
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UINavigationBar *navigationBar = self.navigationController.navigationBar;
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[navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
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navigationBar.shadowImage = [UIImage new];
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[navigationBar setTranslucent:NO];
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navigationBar.barTintColor = LKColors.navigationBarBackground;
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// Loki: Customize title
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UILabel *titleLabel = [UILabel new];
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titleLabel.text = NSLocalizedString(@"Share to Session", @"");
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titleLabel.textColor = LKColors.text;
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titleLabel.font = [UIFont boldSystemFontOfSize:LKValues.veryLargeFontSize];
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self.navigationItem.titleView = titleLabel;
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UIBarButtonItem *closeButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"X"] style:UIBarButtonItemStylePlain target:self action:@selector(dismissPressed:)];
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closeButton.tintColor = LKColors.text;
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self.navigationItem.leftBarButtonItem = closeButton;
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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[self ensureUI];
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}
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- (void)viewDidAppear:(BOOL)animated
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{
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[super viewDidAppear:animated];
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[self ensureUI];
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// Auto-show the auth UI f
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if (!self.hasShownAuthUIOnce) {
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self.hasShownAuthUIOnce = YES;
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[self tryToPresentAuthUIToUnlockScreenLock];
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}
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}
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- (void)dealloc
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{
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// Surface memory leaks by logging the deallocation of view controllers.
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OWSLogVerbose(@"Dealloc: %@", self.class);
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}
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- (void)tryToPresentAuthUIToUnlockScreenLock
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{
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OWSAssertIsOnMainThread();
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if (self.isShowingAuthUI) {
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// We're already showing the auth UI; abort.
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return;
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}
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OWSLogInfo(@"try to unlock screen lock");
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self.isShowingAuthUI = YES;
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[OWSScreenLock.sharedManager tryToUnlockScreenLockWithSuccess:^{
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OWSAssertIsOnMainThread();
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OWSLogInfo(@"unlock screen lock succeeded.");
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self.isShowingAuthUI = NO;
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[self.shareViewDelegate shareViewWasUnlocked];
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}
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failure:^(NSError *error) {
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OWSAssertIsOnMainThread();
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OWSLogInfo(@"unlock screen lock failed.");
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self.isShowingAuthUI = NO;
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[self ensureUI];
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[self showScreenLockFailureAlertWithMessage:error.localizedDescription];
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}
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unexpectedFailure:^(NSError *error) {
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OWSAssertIsOnMainThread();
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OWSLogInfo(@"unlock screen lock unexpectedly failed.");
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self.isShowingAuthUI = NO;
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// Local Authentication isn't working properly.
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// This isn't covered by the docs or the forums but in practice
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// it appears to be effective to retry again after waiting a bit.
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dispatch_async(dispatch_get_main_queue(), ^{
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[self ensureUI];
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});
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}
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cancel:^{
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OWSAssertIsOnMainThread();
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OWSLogInfo(@"unlock screen lock cancelled.");
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self.isShowingAuthUI = NO;
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[self ensureUI];
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}];
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[self ensureUI];
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}
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- (void)ensureUI
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{
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[self updateUIWithState:ScreenLockUIStateScreenLock isLogoAtTop:NO animated:NO];
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}
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- (void)showScreenLockFailureAlertWithMessage:(NSString *)message
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{
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OWSAssertIsOnMainThread();
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[OWSAlerts showAlertWithTitle:NSLocalizedString(@"SCREEN_LOCK_UNLOCK_FAILED",
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@"Title for alert indicating that screen lock could not be unlocked.")
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message:message
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buttonTitle:nil
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buttonAction:^(UIAlertAction *action) {
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// After the alert, update the UI.
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[self ensureUI];
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}
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fromViewController:self];
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}
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- (void)dismissPressed:(id)sender
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{
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OWSLogDebug(@"tapped dismiss share button");
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[self cancelShareExperience];
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}
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- (void)cancelShareExperience
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{
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[self.shareViewDelegate shareViewWasCancelled];
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}
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#pragma mark - ScreenLockViewDelegate
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- (void)unlockButtonWasTapped
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{
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OWSAssertIsOnMainThread();
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OWSLogInfo(@"unlockButtonWasTapped");
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[self tryToPresentAuthUIToUnlockScreenLock];
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}
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@end
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NS_ASSUME_NONNULL_END
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