265 lines
13 KiB
Swift
265 lines
13 KiB
Swift
|
|
final class QRCodeVC : BaseVC, UIPageViewControllerDataSource, UIPageViewControllerDelegate, OWSQRScannerDelegate {
|
|
private let pageVC = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
|
|
private var pages: [UIViewController] = []
|
|
private var targetVCIndex: Int?
|
|
private var tabBarTopConstraint: NSLayoutConstraint!
|
|
|
|
// MARK: Components
|
|
private lazy var tabBar: TabBar = {
|
|
let tabs = [
|
|
TabBar.Tab(title: NSLocalizedString("vc_qr_code_view_my_qr_code_tab_title", comment: "")) { [weak self] in
|
|
guard let self = self else { return }
|
|
self.pageVC.setViewControllers([ self.pages[0] ], direction: .forward, animated: false, completion: nil)
|
|
},
|
|
TabBar.Tab(title: NSLocalizedString("vc_qr_code_view_scan_qr_code_tab_title", comment: "")) { [weak self] in
|
|
guard let self = self else { return }
|
|
self.pageVC.setViewControllers([ self.pages[1] ], direction: .forward, animated: false, completion: nil)
|
|
}
|
|
]
|
|
return TabBar(tabs: tabs)
|
|
}()
|
|
|
|
private lazy var viewMyQRCodeVC: ViewMyQRCodeVC = {
|
|
let result = ViewMyQRCodeVC()
|
|
result.qrCodeVC = self
|
|
return result
|
|
}()
|
|
|
|
private lazy var scanQRCodePlaceholderVC: ScanQRCodePlaceholderVC = {
|
|
let result = ScanQRCodePlaceholderVC()
|
|
result.qrCodeVC = self
|
|
return result
|
|
}()
|
|
|
|
private lazy var scanQRCodeWrapperVC: ScanQRCodeWrapperVC = {
|
|
let message = NSLocalizedString("vc_qr_code_view_scan_qr_code_explanation", comment: "")
|
|
let result = ScanQRCodeWrapperVC(message: message)
|
|
result.delegate = self
|
|
return result
|
|
}()
|
|
|
|
// MARK: Lifecycle
|
|
override func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
setUpGradientBackground()
|
|
setUpNavBarStyle()
|
|
setNavBarTitle(NSLocalizedString("vc_qr_code_title", comment: ""))
|
|
let navigationBar = navigationController!.navigationBar
|
|
// Set up page VC
|
|
let hasCameraAccess = (AVCaptureDevice.authorizationStatus(for: .video) == .authorized)
|
|
pages = [ viewMyQRCodeVC, (hasCameraAccess ? scanQRCodeWrapperVC : scanQRCodePlaceholderVC) ]
|
|
pageVC.dataSource = self
|
|
pageVC.delegate = self
|
|
pageVC.setViewControllers([ viewMyQRCodeVC ], direction: .forward, animated: false, completion: nil)
|
|
// Set up tab bar
|
|
view.addSubview(tabBar)
|
|
tabBar.pin(.leading, to: .leading, of: view)
|
|
tabBarTopConstraint = tabBar.autoPinEdge(toSuperviewSafeArea: .top)
|
|
view.pin(.trailing, to: .trailing, of: tabBar)
|
|
// Set up page VC constraints
|
|
let pageVCView = pageVC.view!
|
|
view.addSubview(pageVCView)
|
|
pageVCView.pin(.leading, to: .leading, of: view)
|
|
pageVCView.pin(.top, to: .bottom, of: tabBar)
|
|
view.pin(.trailing, to: .trailing, of: pageVCView)
|
|
view.pin(.bottom, to: .bottom, of: pageVCView)
|
|
let screen = UIScreen.main.bounds
|
|
pageVCView.set(.width, to: screen.width)
|
|
let height: CGFloat
|
|
if #available(iOS 13, *) {
|
|
height = navigationController!.view.bounds.height - navigationBar.height() - Values.tabBarHeight
|
|
} else {
|
|
let statusBarHeight = UIApplication.shared.statusBarFrame.height
|
|
height = navigationController!.view.bounds.height - navigationBar.height() - Values.tabBarHeight - statusBarHeight
|
|
}
|
|
pageVCView.set(.height, to: height)
|
|
viewMyQRCodeVC.constrainHeight(to: height)
|
|
scanQRCodePlaceholderVC.constrainHeight(to: height)
|
|
}
|
|
|
|
override func viewDidAppear(_ animated: Bool) {
|
|
super.viewDidAppear(animated)
|
|
tabBarTopConstraint.constant = navigationController!.navigationBar.height()
|
|
}
|
|
|
|
// MARK: General
|
|
func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
|
|
guard let index = pages.firstIndex(of: viewController), index != 0 else { return nil }
|
|
return pages[index - 1]
|
|
}
|
|
|
|
func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
|
|
guard let index = pages.firstIndex(of: viewController), index != (pages.count - 1) else { return nil }
|
|
return pages[index + 1]
|
|
}
|
|
|
|
fileprivate func handleCameraAccessGranted() {
|
|
pages[1] = scanQRCodeWrapperVC
|
|
pageVC.setViewControllers([ scanQRCodeWrapperVC ], direction: .forward, animated: false, completion: nil)
|
|
}
|
|
|
|
// MARK: Updating
|
|
func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
|
|
guard let targetVC = pendingViewControllers.first, let index = pages.firstIndex(of: targetVC) else { return }
|
|
targetVCIndex = index
|
|
}
|
|
|
|
func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating isFinished: Bool, previousViewControllers: [UIViewController], transitionCompleted isCompleted: Bool) {
|
|
guard isCompleted, let index = targetVCIndex else { return }
|
|
tabBar.selectTab(at: index)
|
|
}
|
|
|
|
// MARK: Interaction
|
|
@objc private func close() {
|
|
dismiss(animated: true, completion: nil)
|
|
}
|
|
|
|
func controller(_ controller: OWSQRCodeScanningViewController, didDetectQRCodeWith string: String) {
|
|
let hexEncodedPublicKey = string
|
|
startNewPrivateChatIfPossible(with: hexEncodedPublicKey)
|
|
}
|
|
|
|
fileprivate func startNewPrivateChatIfPossible(with hexEncodedPublicKey: String) {
|
|
if !ECKeyPair.isValidHexEncodedPublicKey(candidate: hexEncodedPublicKey) {
|
|
let alert = UIAlertController(title: NSLocalizedString("invalid_session_id", comment: ""), message: NSLocalizedString("Please check the Session ID and try again.", comment: ""), preferredStyle: .alert)
|
|
alert.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default, handler: nil))
|
|
presentAlert(alert)
|
|
} else {
|
|
let thread = TSContactThread.getOrCreateThread(contactId: hexEncodedPublicKey)
|
|
presentingViewController?.dismiss(animated: true, completion: nil)
|
|
SignalApp.shared().presentConversation(for: thread, action: .compose, animated: false)
|
|
}
|
|
}
|
|
}
|
|
|
|
private final class ViewMyQRCodeVC : UIViewController {
|
|
weak var qrCodeVC: QRCodeVC!
|
|
private var bottomConstraint: NSLayoutConstraint!
|
|
|
|
// MARK: Lifecycle
|
|
override func viewDidLoad() {
|
|
// Remove background color
|
|
view.backgroundColor = .clear
|
|
// Set up title label
|
|
let titleLabel = UILabel()
|
|
titleLabel.textColor = Colors.text
|
|
titleLabel.font = .boldSystemFont(ofSize: isIPhone5OrSmaller ? CGFloat(40) : Values.massiveFontSize)
|
|
titleLabel.text = "Scan Me"
|
|
titleLabel.numberOfLines = 1
|
|
titleLabel.textAlignment = .center
|
|
titleLabel.lineBreakMode = .byWordWrapping
|
|
titleLabel.set(.height, to: isIPhone5OrSmaller ? CGFloat(40) : Values.massiveFontSize)
|
|
// Set up QR code image view
|
|
let qrCodeImageView = UIImageView()
|
|
let qrCode = QRCode.generate(for: getUserHexEncodedPublicKey(), hasBackground: true)
|
|
qrCodeImageView.image = qrCode
|
|
qrCodeImageView.contentMode = .scaleAspectFit
|
|
qrCodeImageView.set(.height, to: isIPhone5OrSmaller ? 180 : 240)
|
|
qrCodeImageView.set(.width, to: isIPhone5OrSmaller ? 180 : 240)
|
|
// Set up QR code image view container
|
|
let qrCodeImageViewContainer = UIView()
|
|
qrCodeImageViewContainer.accessibilityLabel = "Your QR code"
|
|
qrCodeImageViewContainer.isAccessibilityElement = true
|
|
qrCodeImageViewContainer.addSubview(qrCodeImageView)
|
|
qrCodeImageView.center(.horizontal, in: qrCodeImageViewContainer)
|
|
qrCodeImageView.pin(.top, to: .top, of: qrCodeImageViewContainer)
|
|
qrCodeImageView.pin(.bottom, to: .bottom, of: qrCodeImageViewContainer)
|
|
// Set up explanation label
|
|
let explanationLabel = UILabel()
|
|
explanationLabel.textColor = Colors.text
|
|
explanationLabel.font = .systemFont(ofSize: Values.mediumFontSize)
|
|
explanationLabel.text = NSLocalizedString("vc_view_my_qr_code_explanation", comment: "")
|
|
explanationLabel.numberOfLines = 0
|
|
explanationLabel.textAlignment = .center
|
|
explanationLabel.lineBreakMode = .byWordWrapping
|
|
// Set up share button
|
|
let shareButton = Button(style: .regular, size: .large)
|
|
shareButton.setTitle(NSLocalizedString("share", comment: ""), for: UIControl.State.normal)
|
|
shareButton.addTarget(self, action: #selector(shareQRCode), for: UIControl.Event.touchUpInside)
|
|
// Set up share button container
|
|
let shareButtonContainer = UIView()
|
|
shareButtonContainer.addSubview(shareButton)
|
|
shareButton.pin(.leading, to: .leading, of: shareButtonContainer, withInset: 80)
|
|
shareButton.pin(.top, to: .top, of: shareButtonContainer)
|
|
shareButtonContainer.pin(.trailing, to: .trailing, of: shareButton, withInset: 80)
|
|
shareButtonContainer.pin(.bottom, to: .bottom, of: shareButton, withInset: isIPhone6OrSmaller ? Values.largeSpacing : Values.onboardingButtonBottomOffset)
|
|
let spacing = isIPhone5OrSmaller ? Values.mediumSpacing : Values.largeSpacing
|
|
// Set up stack view
|
|
let stackView = UIStackView(arrangedSubviews: [ titleLabel, UIView.spacer(withHeight: spacing), qrCodeImageViewContainer, UIView.spacer(withHeight: spacing),
|
|
explanationLabel, UIView.vStretchingSpacer(), shareButtonContainer ])
|
|
stackView.axis = .vertical
|
|
stackView.alignment = .fill
|
|
stackView.layoutMargins = UIEdgeInsets(top: Values.largeSpacing, left: Values.largeSpacing, bottom: 0, right: Values.largeSpacing)
|
|
stackView.isLayoutMarginsRelativeArrangement = true
|
|
view.addSubview(stackView)
|
|
stackView.pin(.leading, to: .leading, of: view)
|
|
stackView.pin(.top, to: .top, of: view)
|
|
view.pin(.trailing, to: .trailing, of: stackView)
|
|
bottomConstraint = view.pin(.bottom, to: .bottom, of: stackView)
|
|
// Set up width constraint
|
|
view.set(.width, to: UIScreen.main.bounds.width)
|
|
}
|
|
|
|
// MARK: General
|
|
func constrainHeight(to height: CGFloat) {
|
|
view.set(.height, to: height)
|
|
}
|
|
|
|
// MARK: Interaction
|
|
@objc private func shareQRCode() {
|
|
let qrCode = QRCode.generate(for: getUserHexEncodedPublicKey(), hasBackground: true)
|
|
let shareVC = UIActivityViewController(activityItems: [ qrCode ], applicationActivities: nil)
|
|
qrCodeVC.navigationController!.present(shareVC, animated: true, completion: nil)
|
|
}
|
|
}
|
|
|
|
private final class ScanQRCodePlaceholderVC : UIViewController {
|
|
weak var qrCodeVC: QRCodeVC!
|
|
|
|
override func viewDidLoad() {
|
|
// Remove background color
|
|
view.backgroundColor = .clear
|
|
// Set up explanation label
|
|
let explanationLabel = UILabel()
|
|
explanationLabel.textColor = Colors.text
|
|
explanationLabel.font = .systemFont(ofSize: Values.smallFontSize)
|
|
explanationLabel.text = NSLocalizedString("vc_scan_qr_code_camera_access_explanation", comment: "")
|
|
explanationLabel.numberOfLines = 0
|
|
explanationLabel.textAlignment = .center
|
|
explanationLabel.lineBreakMode = .byWordWrapping
|
|
// Set up call to action button
|
|
let callToActionButton = UIButton()
|
|
callToActionButton.titleLabel!.font = .boldSystemFont(ofSize: Values.mediumFontSize)
|
|
callToActionButton.setTitleColor(Colors.accent, for: UIControl.State.normal)
|
|
callToActionButton.setTitle(NSLocalizedString("vc_scan_qr_code_grant_camera_access_button_title", comment: ""), for: UIControl.State.normal)
|
|
callToActionButton.addTarget(self, action: #selector(requestCameraAccess), for: UIControl.Event.touchUpInside)
|
|
// Set up stack view
|
|
let stackView = UIStackView(arrangedSubviews: [ explanationLabel, callToActionButton ])
|
|
stackView.axis = .vertical
|
|
stackView.spacing = Values.mediumSpacing
|
|
stackView.alignment = .center
|
|
// Set up constraints
|
|
view.set(.width, to: UIScreen.main.bounds.width)
|
|
view.addSubview(stackView)
|
|
stackView.pin(.leading, to: .leading, of: view, withInset: Values.massiveSpacing)
|
|
view.pin(.trailing, to: .trailing, of: stackView, withInset: Values.massiveSpacing)
|
|
let verticalCenteringConstraint = stackView.center(.vertical, in: view)
|
|
verticalCenteringConstraint.constant = -16 // Makes things appear centered visually
|
|
}
|
|
|
|
func constrainHeight(to height: CGFloat) {
|
|
view.set(.height, to: height)
|
|
}
|
|
|
|
@objc private func requestCameraAccess() {
|
|
ows_ask(forCameraPermissions: { [weak self] hasCameraAccess in
|
|
if hasCameraAccess {
|
|
self?.qrCodeVC.handleCameraAccessGranted()
|
|
} else {
|
|
// Do nothing
|
|
}
|
|
})
|
|
}
|
|
}
|