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final class RestoreVC : BaseVC {
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private var spacer1HeightConstraint : NSLayoutConstraint !
private var spacer2HeightConstraint : NSLayoutConstraint !
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private var spacer3HeightConstraint : NSLayoutConstraint !
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private var restoreButtonBottomOffsetConstraint : NSLayoutConstraint !
private var bottomConstraint : NSLayoutConstraint !
// MARK: C o m p o n e n t s
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private lazy var mnemonicTextView : TextView = {
let result = TextView ( placeholder : NSLocalizedString ( " vc_restore_seed_text_field_hint " , comment : " " ) )
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result . layer . borderColor = Colors . text . cgColor
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result . accessibilityLabel = " Recovery phrase text view "
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return result
} ( )
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private lazy var legalLabel : UILabel = {
let result = UILabel ( )
result . textColor = Colors . text
result . font = . systemFont ( ofSize : Values . verySmallFontSize )
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let text = " By using this service, you agree to our Terms of Service, End User License Agreement (EULA) and Privacy Policy "
let attributedText = NSMutableAttributedString ( string : text , attributes : [ . font : UIFont . systemFont ( ofSize : Values . verySmallFontSize ) ] )
attributedText . addAttribute ( . font , value : UIFont . boldSystemFont ( ofSize : Values . verySmallFontSize ) , range : ( text as NSString ) . range ( of : " Terms of Service " ) )
attributedText . addAttribute ( . font , value : UIFont . boldSystemFont ( ofSize : Values . verySmallFontSize ) , range : ( text as NSString ) . range ( of : " End User License Agreement (EULA) " ) )
attributedText . addAttribute ( . font , value : UIFont . boldSystemFont ( ofSize : Values . verySmallFontSize ) , range : ( text as NSString ) . range ( of : " Privacy Policy " ) )
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result . attributedText = attributedText
result . numberOfLines = 0
result . textAlignment = . center
result . lineBreakMode = . byWordWrapping
return result
} ( )
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// MARK: L i f e c y c l e
override func viewDidLoad ( ) {
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super . viewDidLoad ( )
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setUpGradientBackground ( )
setUpNavBarStyle ( )
setUpNavBarSessionIcon ( )
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// S e t u p t i t l e l a b e l
let titleLabel = UILabel ( )
titleLabel . textColor = Colors . text
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titleLabel . font = . boldSystemFont ( ofSize : isIPhone5OrSmaller ? Values . largeFontSize : Values . veryLargeFontSize )
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titleLabel . text = NSLocalizedString ( " vc_restore_title " , comment : " " )
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titleLabel . numberOfLines = 0
titleLabel . lineBreakMode = . byWordWrapping
// S e t u p e x p l a n a t i o n l a b e l
let explanationLabel = UILabel ( )
explanationLabel . textColor = Colors . text
explanationLabel . font = . systemFont ( ofSize : Values . smallFontSize )
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explanationLabel . text = NSLocalizedString ( " vc_restore_explanation " , comment : " " )
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explanationLabel . numberOfLines = 0
explanationLabel . lineBreakMode = . byWordWrapping
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// S e t u p l e g a l l a b e l
legalLabel . isUserInteractionEnabled = true
let legalLabelTapGestureRecognizer = UITapGestureRecognizer ( target : self , action : #selector ( handleLegalLabelTapped ) )
legalLabel . addGestureRecognizer ( legalLabelTapGestureRecognizer )
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// S e t u p s p a c e r s
let topSpacer = UIView . vStretchingSpacer ( )
let spacer1 = UIView ( )
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spacer1HeightConstraint = spacer1 . set ( . height , to : isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing )
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let spacer2 = UIView ( )
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spacer2HeightConstraint = spacer2 . set ( . height , to : isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing )
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let spacer3 = UIView ( )
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spacer3HeightConstraint = spacer3 . set ( . height , to : isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing )
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let bottomSpacer = UIView . vStretchingSpacer ( )
let restoreButtonBottomOffsetSpacer = UIView ( )
restoreButtonBottomOffsetConstraint = restoreButtonBottomOffsetSpacer . set ( . height , to : Values . onboardingButtonBottomOffset )
// S e t u p r e s t o r e b u t t o n
let restoreButton = Button ( style : . prominentFilled , size : . large )
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restoreButton . setTitle ( NSLocalizedString ( " continue_2 " , comment : " " ) , for : UIControl . State . normal )
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restoreButton . titleLabel ! . font = . boldSystemFont ( ofSize : Values . mediumFontSize )
restoreButton . addTarget ( self , action : #selector ( restore ) , for : UIControl . Event . touchUpInside )
// S e t u p r e s t o r e b u t t o n c o n t a i n e r
let restoreButtonContainer = UIView ( )
restoreButtonContainer . addSubview ( restoreButton )
restoreButton . pin ( . leading , to : . leading , of : restoreButtonContainer , withInset : Values . massiveSpacing )
restoreButton . pin ( . top , to : . top , of : restoreButtonContainer )
restoreButtonContainer . pin ( . trailing , to : . trailing , of : restoreButton , withInset : Values . massiveSpacing )
restoreButtonContainer . pin ( . bottom , to : . bottom , of : restoreButton )
// S e t u p t o p s t a c k v i e w
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let topStackView = UIStackView ( arrangedSubviews : [ titleLabel , spacer1 , explanationLabel , spacer2 , mnemonicTextView , spacer3 , legalLabel ] )
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topStackView . axis = . vertical
topStackView . alignment = . fill
// S e t u p t o p s t a c k v i e w c o n t a i n e r
let topStackViewContainer = UIView ( )
topStackViewContainer . addSubview ( topStackView )
topStackView . pin ( . leading , to : . leading , of : topStackViewContainer , withInset : Values . veryLargeSpacing )
topStackView . pin ( . top , to : . top , of : topStackViewContainer )
topStackViewContainer . pin ( . trailing , to : . trailing , of : topStackView , withInset : Values . veryLargeSpacing )
topStackViewContainer . pin ( . bottom , to : . bottom , of : topStackView )
// S e t u p m a i n s t a c k v i e w
let mainStackView = UIStackView ( arrangedSubviews : [ topSpacer , topStackViewContainer , bottomSpacer , restoreButtonContainer , restoreButtonBottomOffsetSpacer ] )
mainStackView . axis = . vertical
mainStackView . alignment = . fill
view . addSubview ( mainStackView )
mainStackView . pin ( . leading , to : . leading , of : view )
mainStackView . pin ( . top , to : . top , of : view )
mainStackView . pin ( . trailing , to : . trailing , of : view )
bottomConstraint = mainStackView . pin ( . bottom , to : . bottom , of : view )
topSpacer . heightAnchor . constraint ( equalTo : bottomSpacer . heightAnchor , multiplier : 1 ) . isActive = true
// D i s m i s s k e y b o a r d o n t a p
let tapGestureRecognizer = UITapGestureRecognizer ( target : self , action : #selector ( dismissKeyboard ) )
view . addGestureRecognizer ( tapGestureRecognizer )
// L i s t e n t o k e y b o a r d n o t i f i c a t i o n s
let notificationCenter = NotificationCenter . default
notificationCenter . addObserver ( self , selector : #selector ( handleKeyboardWillChangeFrameNotification ( _ : ) ) , name : UIResponder . keyboardWillChangeFrameNotification , object : nil )
notificationCenter . addObserver ( self , selector : #selector ( handleKeyboardWillHideNotification ( _ : ) ) , name : UIResponder . keyboardWillHideNotification , object : nil )
}
override func viewDidAppear ( _ animated : Bool ) {
super . viewDidAppear ( animated )
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// O n s m a l l s c r e e n s w e h i d e t h e l e g a l l a b e l w h e n t h e k e y b o a r d i s u p , b u t i t ' s i m p o r t a n t t h a t t h e u s e r s e e s i t s o
// i n t h o s e i n s t a n c e s w e d o n ' t m a k e t h e k e y b o a r d c o m e u p a u t o m a t i c a l l y
if ! isIPhone5OrSmaller {
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mnemonicTextView . becomeFirstResponder ( )
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}
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}
deinit {
NotificationCenter . default . removeObserver ( self )
}
// MARK: G e n e r a l
@objc private func dismissKeyboard ( ) {
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mnemonicTextView . resignFirstResponder ( )
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}
// MARK: U p d a t i n g
@objc private func handleKeyboardWillChangeFrameNotification ( _ notification : Notification ) {
guard let newHeight = ( notification . userInfo ? [ UIResponder . keyboardFrameEndUserInfoKey ] as ? NSValue ) ? . cgRectValue . size . height else { return }
bottomConstraint . constant = - newHeight // N e g a t i v e d u e t o h o w t h e c o n s t r a i n t i s s e t u p
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restoreButtonBottomOffsetConstraint . constant = isIPhone6OrSmaller ? Values . smallSpacing : Values . largeSpacing
spacer1HeightConstraint . constant = isIPhone6OrSmaller ? Values . smallSpacing : Values . mediumSpacing
spacer2HeightConstraint . constant = isIPhone6OrSmaller ? Values . smallSpacing : Values . mediumSpacing
spacer3HeightConstraint . constant = isIPhone6OrSmaller ? Values . smallSpacing : Values . mediumSpacing
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if isIPhone5OrSmaller { legalLabel . isUserInteractionEnabled = false }
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UIView . animate ( withDuration : 0.25 ) {
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if isIPhone5OrSmaller { self . legalLabel . alpha = 0 }
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self . view . layoutIfNeeded ( )
}
}
@objc private func handleKeyboardWillHideNotification ( _ notification : Notification ) {
bottomConstraint . constant = 0
restoreButtonBottomOffsetConstraint . constant = Values . onboardingButtonBottomOffset
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spacer1HeightConstraint . constant = isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing
spacer2HeightConstraint . constant = isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing
spacer3HeightConstraint . constant = isIPhone5OrSmaller ? Values . smallSpacing : Values . veryLargeSpacing
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if isIPhone5OrSmaller { legalLabel . isUserInteractionEnabled = true }
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UIView . animate ( withDuration : 0.25 ) {
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if isIPhone5OrSmaller { self . legalLabel . alpha = 1 }
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self . view . layoutIfNeeded ( )
}
}
// MARK: I n t e r a c t i o n
@objc private func restore ( ) {
func showError ( title : String , message : String = " " ) {
let alert = UIAlertController ( title : title , message : message , preferredStyle : . alert )
alert . addAction ( UIAlertAction ( title : NSLocalizedString ( " OK " , comment : " " ) , style : . default , handler : nil ) )
presentAlert ( alert )
}
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let mnemonic = mnemonicTextView . text !
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do {
let hexEncodedSeed = try Mnemonic . decode ( mnemonic : mnemonic )
let seed = Data ( hex : hexEncodedSeed )
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let ( ed25519KeyPair , x25519KeyPair ) = KeyPairUtilities . generate ( from : seed )
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Onboarding . Flow . recover . preregister ( with : seed , ed25519KeyPair : ed25519KeyPair , x25519KeyPair : x25519KeyPair )
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mnemonicTextView . resignFirstResponder ( )
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Timer . scheduledTimer ( withTimeInterval : 0.25 , repeats : false ) { _ in
let displayNameVC = DisplayNameVC ( )
self . navigationController ! . pushViewController ( displayNameVC , animated : true )
}
} catch let error {
let error = error as ? Mnemonic . DecodingError ? ? Mnemonic . DecodingError . generic
showError ( title : error . errorDescription ! )
}
}
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@objc private func handleLegalLabelTapped ( _ tapGestureRecognizer : UITapGestureRecognizer ) {
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let urlAsString : String ?
let tosRange = ( legalLabel . text ! as NSString ) . range ( of : " Terms of Service " )
let eulaRange = ( legalLabel . text ! as NSString ) . range ( of : " End User License Agreement (EULA) " )
let ppRange = ( legalLabel . text ! as NSString ) . range ( of : " Privacy Policy " )
let touchInLegalLabelCoordinates = tapGestureRecognizer . location ( in : legalLabel )
let characterIndex = legalLabel . characterIndex ( for : touchInLegalLabelCoordinates )
if tosRange . contains ( characterIndex ) {
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urlAsString = " https://getsession.org/terms-of-service/ "
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} else if eulaRange . contains ( characterIndex ) {
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urlAsString = " https://getsession.org/terms-of-service/#eula "
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} else if ppRange . contains ( characterIndex ) {
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urlAsString = " https://getsession.org/privacy-policy/ "
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} else {
urlAsString = nil
}
if let urlAsString = urlAsString {
let url = URL ( string : urlAsString ) !
UIApplication . shared . open ( url )
}
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}
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}