mirror of https://github.com/oxen-io/session-ios
Merge branch 'charlesmchen/saeScreenLock' into release/2.24.0
Matthew Chen
7 years ago
commit
83a9c1e9eb
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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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typedef NS_ENUM(NSUInteger, ScreenLockUIState) {
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ScreenLockUIStateNone,
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// Shown while app is inactive or background, if enabled.
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ScreenLockUIStateScreenProtection,
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// Shown while app is active, if enabled.
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ScreenLockUIStateScreenLock,
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};
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NSString *NSStringForScreenLockUIState(ScreenLockUIState value);
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@protocol ScreenLockViewDelegate <NSObject>
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- (void)unlockButtonWasTapped;
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@end
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#pragma mark -
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@interface ScreenLockViewController : UIViewController
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@property (nonatomic, weak) id<ScreenLockViewDelegate> delegate;
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- (void)updateUIWithState:(ScreenLockUIState)uiState isLogoAtTop:(BOOL)isLogoAtTop animated:(BOOL)animated;
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@end
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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 "ScreenLockViewController.h"
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#import "UIColor+OWS.h"
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#import "UIFont+OWS.h"
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#import "UIView+OWS.h"
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#import <SignalMessaging/SignalMessaging-Swift.h>
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NSString *NSStringForScreenLockUIState(ScreenLockUIState value)
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{
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switch (value) {
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case ScreenLockUIStateNone:
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return @"ScreenLockUIStateNone";
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case ScreenLockUIStateScreenProtection:
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return @"ScreenLockUIStateScreenProtection";
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case ScreenLockUIStateScreenLock:
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return @"ScreenLockUIStateScreenLock";
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}
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}
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@interface ScreenLockViewController ()
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@property (nonatomic) UIView *screenBlockingImageView;
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@property (nonatomic) UIView *screenBlockingButton;
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@property (nonatomic) NSArray<NSLayoutConstraint *> *screenBlockingConstraints;
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@property (nonatomic) NSString *screenBlockingSignature;
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@end
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#pragma mark -
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@implementation ScreenLockViewController
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- (void)loadView
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{
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[super loadView];
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self.view.backgroundColor = UIColor.ows_materialBlueColor;
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UIView *edgesView = [UIView containerView];
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[self.view addSubview:edgesView];
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[edgesView autoPinEdgeToSuperviewEdge:ALEdgeTop];
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[edgesView autoPinEdgeToSuperviewEdge:ALEdgeBottom];
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[edgesView autoPinWidthToSuperview];
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UIImage *image = [UIImage imageNamed:@"logoSignal"];
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UIImageView *imageView = [UIImageView new];
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imageView.image = image;
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[edgesView addSubview:imageView];
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[imageView autoHCenterInSuperview];
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const CGSize screenSize = UIScreen.mainScreen.bounds.size;
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const CGFloat shortScreenDimension = MIN(screenSize.width, screenSize.height);
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const CGFloat imageSize = round(shortScreenDimension / 3.f);
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[imageView autoSetDimension:ALDimensionWidth toSize:imageSize];
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[imageView autoSetDimension:ALDimensionHeight toSize:imageSize];
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const CGFloat kButtonHeight = 40.f;
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OWSFlatButton *button =
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[OWSFlatButton buttonWithTitle:NSLocalizedString(@"SCREEN_LOCK_UNLOCK_SIGNAL",
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@"Label for button on lock screen that lets users unlock Signal.")
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font:[OWSFlatButton fontForHeight:kButtonHeight]
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titleColor:[UIColor ows_materialBlueColor]
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backgroundColor:[UIColor whiteColor]
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target:self
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selector:@selector(showUnlockUI)];
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[edgesView addSubview:button];
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[button autoSetDimension:ALDimensionHeight toSize:kButtonHeight];
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[button autoPinLeadingToSuperviewMarginWithInset:50.f];
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[button autoPinTrailingToSuperviewMarginWithInset:50.f];
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const CGFloat kVMargin = 65.f;
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[button autoPinBottomToSuperviewMarginWithInset:kVMargin];
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self.screenBlockingImageView = imageView;
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self.screenBlockingButton = button;
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}
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// The "screen blocking" window has three possible states:
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//
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// * "Just a logo". Used when app is launching and in app switcher. Must match the "Launch Screen"
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// storyboard pixel-for-pixel.
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// * "Screen Lock, local auth UI presented". Move the Signal logo so that it is visible.
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// * "Screen Lock, local auth UI not presented". Move the Signal logo so that it is visible,
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// show "unlock" button.
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- (void)updateUIWithState:(ScreenLockUIState)uiState isLogoAtTop:(BOOL)isLogoAtTop animated:(BOOL)animated
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{
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OWSAssertIsOnMainThread();
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BOOL shouldShowBlockWindow = uiState != ScreenLockUIStateNone;
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BOOL shouldHaveScreenLock = uiState == ScreenLockUIStateScreenLock;
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self.screenBlockingImageView.hidden = !shouldShowBlockWindow;
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NSString *signature = [NSString stringWithFormat:@"%d %d", shouldHaveScreenLock, isLogoAtTop];
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if ([NSObject isNullableObject:self.screenBlockingSignature equalTo:signature]) {
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// Skip redundant work to avoid interfering with ongoing animations.
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return;
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}
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[NSLayoutConstraint deactivateConstraints:self.screenBlockingConstraints];
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NSMutableArray<NSLayoutConstraint *> *screenBlockingConstraints = [NSMutableArray new];
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self.screenBlockingButton.hidden = !shouldHaveScreenLock;
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if (isLogoAtTop) {
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const CGFloat kVMargin = 60.f;
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[screenBlockingConstraints addObject:[self.screenBlockingImageView autoPinEdge:ALEdgeTop
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toEdge:ALEdgeTop
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ofView:self.view
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withOffset:kVMargin]];
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} else {
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[screenBlockingConstraints addObject:[self.screenBlockingImageView autoVCenterInSuperview]];
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}
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self.screenBlockingConstraints = screenBlockingConstraints;
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self.screenBlockingSignature = signature;
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if (animated) {
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[UIView animateWithDuration:0.35f
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animations:^{
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[self.view layoutIfNeeded];
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}];
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} else {
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[self.view layoutIfNeeded];
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}
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}
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- (void)showUnlockUI
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{
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OWSAssertIsOnMainThread();
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[self.delegate unlockButtonWasTapped];
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}
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@end
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@ -0,0 +1,18 @@
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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 "OWSViewController.h"
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#import <SignalMessaging/ScreenLockViewController.h>
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NS_ASSUME_NONNULL_BEGIN
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@protocol ShareViewDelegate;
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@interface SAEScreenLockViewController : ScreenLockViewController
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- (instancetype)initWithShareViewDelegate:(id<ShareViewDelegate>)shareViewDelegate;
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@end
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NS_ASSUME_NONNULL_END
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@ -0,0 +1,185 @@
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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 <SignalServiceKit/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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self.view.backgroundColor = [UIColor ows_materialBlueColor];
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self.title = NSLocalizedString(@"SHARE_EXTENSION_VIEW_TITLE", @"Title for the 'share extension' view.");
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self.navigationItem.leftBarButtonItem =
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[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemStop
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target:self
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action:@selector(dismissPressed:)];
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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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DDLogVerbose(@"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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DDLogInfo(@"%@, try to unlock screen lock", self.logTag);
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self.isShowingAuthUI = YES;
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[OWSScreenLock.sharedManager tryToUnlockScreenLockWithSuccess:^{
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OWSAssertIsOnMainThread();
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DDLogInfo(@"%@ unlock screen lock succeeded.", self.logTag);
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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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DDLogInfo(@"%@ unlock screen lock failed.", self.logTag);
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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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DDLogInfo(@"%@ unlock screen lock unexpectedly failed.", self.logTag);
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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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DDLogInfo(@"%@ unlock screen lock cancelled.", self.logTag);
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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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DDLogDebug(@"%@ tapped dismiss share button", self.logTag);
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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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DDLogInfo(@"%@ unlockButtonWasTapped", self.logTag);
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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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