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- import UIKit
- import DcCore
- class WelcomeViewController: UIViewController, ProgressAlertHandler {
- private let dcContext: DcContext
- var progressObserver: NSObjectProtocol?
- var onProgressSuccess: VoidFunction?
- private lazy var scrollView: UIScrollView = {
- let scrollView = UIScrollView()
- scrollView.showsVerticalScrollIndicator = false
- return scrollView
- }()
- private lazy var welcomeView: WelcomeContentView = {
- let view = WelcomeContentView()
- view.onLogin = { [weak self] in
- guard let self = self else { return }
- let accountSetupController = AccountSetupController(dcContext: self.dcContext, editView: false)
- accountSetupController.onLoginSuccess = {
- [weak self] in
- if let appDelegate = UIApplication.shared.delegate as? AppDelegate {
- appDelegate.appCoordinator.presentTabBarController()
- appDelegate.appCoordinator.popTabsToRootViewControllers()
- }
- }
- self.navigationController?.pushViewController(accountSetupController, animated: true)
- }
- view.onScanQRCode = { [weak self] in
- guard let self = self else { return }
- let qrReader = QrCodeReaderController()
- qrReader.delegate = self
- self.qrCodeReader = qrReader
- self.navigationController?.pushViewController(qrReader, animated: true)
- }
- view.translatesAutoresizingMaskIntoConstraints = false
- return view
- }()
- private var qrCodeReader: QrCodeReaderController?
- weak var progressAlert: UIAlertController?
- init(dcContext: DcContext) {
- self.dcContext = dcContext
- super.init(nibName: nil, bundle: nil)
- self.navigationItem.title = String.localized("welcome_desktop")
- onProgressSuccess = { [weak self] in
- let profileInfoController = ProfileInfoViewController(context: dcContext)
- profileInfoController.onClose = {
- if let appDelegate = UIApplication.shared.delegate as? AppDelegate {
- appDelegate.appCoordinator.presentTabBarController()
- }
- }
- self?.navigationController?.setViewControllers([profileInfoController], animated: true)
- }
- }
- required init?(coder: NSCoder) {
- fatalError("init(coder:) has not been implemented")
- }
- // MARK: - lifecycle
- override func viewDidLoad() {
- super.viewDidLoad()
- setupSubviews()
- }
- override func viewDidLayoutSubviews() {
- super.viewDidLayoutSubviews()
- welcomeView.minContainerHeight = view.frame.height - view.safeAreaInsets.top
- }
- override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
- super.viewWillTransition(to: size, with: coordinator)
- welcomeView.minContainerHeight = size.height - view.safeAreaInsets.top
- scrollView.setContentOffset(CGPoint(x: 0, y: 0), animated: true)
- }
- override func viewDidDisappear(_ animated: Bool) {
- let nc = NotificationCenter.default
- if let observer = self.progressObserver {
- nc.removeObserver(observer)
- self.progressObserver = nil
- }
- }
- // MARK: - setup
- private func setupSubviews() {
- view.addSubview(scrollView)
- scrollView.translatesAutoresizingMaskIntoConstraints = false
- scrollView.addSubview(welcomeView)
- let frameGuide = scrollView.frameLayoutGuide
- let contentGuide = scrollView.contentLayoutGuide
- frameGuide.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
- frameGuide.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
- frameGuide.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: 0).isActive = true
- frameGuide.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0).isActive = true
- contentGuide.leadingAnchor.constraint(equalTo: welcomeView.leadingAnchor).isActive = true
- contentGuide.topAnchor.constraint(equalTo: welcomeView.topAnchor).isActive = true
- contentGuide.trailingAnchor.constraint(equalTo: welcomeView.trailingAnchor).isActive = true
- contentGuide.bottomAnchor.constraint(equalTo: welcomeView.bottomAnchor).isActive = true
- // this enables vertical scrolling
- frameGuide.widthAnchor.constraint(equalTo: contentGuide.widthAnchor).isActive = true
- }
- // MARK: - actions
- private func createAccountFromQRCode(qrCode: String) {
- let success = dcContext.setConfigFromQR(qrCode: qrCode)
- if success {
- addProgressAlertListener(dcContext: dcContext, progressName: dcNotificationConfigureProgress, onSuccess: handleLoginSuccess)
- showProgressAlert(title: String.localized("login_header"), dcContext: dcContext)
- dcContext.stopIo()
- dcContext.configure()
- } else {
- accountCreationErrorAlert()
- }
- }
- private func handleLoginSuccess() {
- guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else { return }
- if !UserDefaults.standard.bool(forKey: "notifications_disabled") {
- appDelegate.registerForNotifications()
- }
- onProgressSuccess?()
- }
- private func accountCreationErrorAlert() {
- let title = dcContext.lastErrorString ?? String.localized("error")
- let alert = UIAlertController(title: title, message: nil, preferredStyle: .alert)
- alert.addAction(UIAlertAction(title: String.localized("ok"), style: .default))
- present(alert, animated: true)
- }
- }
- extension WelcomeViewController: QrCodeReaderDelegate {
- func handleQrCode(_ code: String) {
- let lot = dcContext.checkQR(qrCode: code)
- if let domain = lot.text1, lot.state == DC_QR_ACCOUNT {
- confirmAccountCreationAlert(accountDomain: domain, qrCode: code)
- } else {
- qrErrorAlert()
- }
- }
- private func confirmAccountCreationAlert(accountDomain domain: String, qrCode: String) {
- let title = String.localizedStringWithFormat(String.localized("qraccount_ask_create_and_login"), domain)
- let alert = UIAlertController(title: title, message: nil, preferredStyle: .alert)
- let okAction = UIAlertAction(
- title: String.localized("ok"),
- style: .default,
- handler: { [weak self] _ in
- guard let self = self else { return }
- self.dismissQRReader()
- self.createAccountFromQRCode(qrCode: qrCode)
- }
- )
- let qrCancelAction = UIAlertAction(
- title: String.localized("cancel"),
- style: .cancel,
- handler: { [weak self] _ in
- self?.dismissQRReader()
- }
- )
- alert.addAction(okAction)
- alert.addAction(qrCancelAction)
- qrCodeReader?.present(alert, animated: true)
- }
- private func qrErrorAlert() {
- let title = String.localized("qraccount_qr_code_cannot_be_used")
- let alert = UIAlertController(title: title, message: nil, preferredStyle: .alert)
- let okAction = UIAlertAction(
- title: String.localized("ok"),
- style: .default,
- handler: { [weak self] _ in
- self?.qrCodeReader?.startSession()
- }
- )
- alert.addAction(okAction)
- qrCodeReader?.present(alert, animated: true, completion: nil)
- }
- private func dismissQRReader() {
- self.navigationController?.popViewController(animated: true)
- self.qrCodeReader = nil
- }
- }
- // MARK: - WelcomeContentView
- class WelcomeContentView: UIView {
- var onLogin: VoidFunction?
- var onScanQRCode: VoidFunction?
- var onImportBackup: VoidFunction?
- var minContainerHeight: CGFloat = 0 {
- didSet {
- containerMinHeightConstraint.constant = minContainerHeight
- logoHeightConstraint.constant = calculateLogoHeight()
- }
- }
- private lazy var containerMinHeightConstraint: NSLayoutConstraint = {
- return container.heightAnchor.constraint(greaterThanOrEqualToConstant: 0)
- }()
- private lazy var logoHeightConstraint: NSLayoutConstraint = {
- return logoView.heightAnchor.constraint(equalToConstant: 0)
- }()
- private var container = UIView()
- private var logoView: UIImageView = {
- let image = #imageLiteral(resourceName: "dc_logo")
- let view = UIImageView(image: image)
- return view
- }()
- private lazy var titleLabel: UILabel = {
- let label = UILabel()
- label.text = String.localized("welcome_desktop")
- label.textColor = DcColors.grayTextColor
- label.textAlignment = .center
- label.numberOfLines = 0
- label.font = UIFont.systemFont(ofSize: 24, weight: .bold)
- return label
- }()
- private lazy var subtitleLabel: UILabel = {
- let label = UILabel()
- label.text = String.localized("welcome_intro1_message")
- label.font = UIFont.systemFont(ofSize: 22, weight: .regular)
- label.textColor = DcColors.grayTextColor
- label.numberOfLines = 0
- label.textAlignment = .center
- return label
- }()
- private lazy var buttonStack: UIStackView = {
- let stack = UIStackView(arrangedSubviews: [loginButton, qrCodeButton /*, importBackupButton */])
- stack.axis = .vertical
- stack.spacing = 15
- return stack
- }()
- private lazy var loginButton: UIButton = {
- let button = UIButton(type: .roundedRect)
- let title = String.localized("login_header").uppercased()
- button.setTitle(title, for: .normal)
- button.titleLabel?.font = UIFont.systemFont(ofSize: 18, weight: .regular)
- button.setTitleColor(.white, for: .normal)
- button.backgroundColor = DcColors.primary
- let insets = button.contentEdgeInsets
- button.contentEdgeInsets = UIEdgeInsets(top: 8, left: 15, bottom: 8, right: 15)
- button.layer.cornerRadius = 5
- button.clipsToBounds = true
- button.addTarget(self, action: #selector(loginButtonPressed(_:)), for: .touchUpInside)
- return button
- }()
- private lazy var qrCodeButton: UIButton = {
- let button = UIButton()
- let title = String.localized("qrscan_title")
- button.setTitleColor(UIColor.systemBlue, for: .normal)
- button.setTitle(title, for: .normal)
- button.addTarget(self, action: #selector(qrCodeButtonPressed(_:)), for: .touchUpInside)
- return button
- }()
- private lazy var importBackupButton: UIButton = {
- let button = UIButton()
- let title = String.localized("import_backup_title")
- button.setTitleColor(UIColor.systemBlue, for: .normal)
- button.setTitle(title, for: .normal)
- button.addTarget(self, action: #selector(importBackupButtonPressed(_:)), for: .touchUpInside)
- return button
- }()
- private let defaultSpacing: CGFloat = 20
- init() {
- super.init(frame: .zero)
- setupSubviews()
- backgroundColor = DcColors.defaultBackgroundColor
- }
- required init?(coder: NSCoder) {
- fatalError("init(coder:) has not been implemented")
- }
- // MARK: - setup
- private func setupSubviews() {
- addSubview(container)
- container.translatesAutoresizingMaskIntoConstraints = false
- container.topAnchor.constraint(equalTo: topAnchor).isActive = true
- container.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
- container.widthAnchor.constraint(equalTo: widthAnchor, multiplier: 0.75).isActive = true
- container.centerXAnchor.constraint(equalTo: centerXAnchor, constant: 0).isActive = true
- containerMinHeightConstraint.isActive = true
- _ = [logoView, titleLabel, subtitleLabel].map {
- addSubview($0)
- $0.translatesAutoresizingMaskIntoConstraints = false
- }
- let bottomLayoutGuide = UILayoutGuide()
- container.addLayoutGuide(bottomLayoutGuide)
- bottomLayoutGuide.bottomAnchor.constraint(equalTo: container.bottomAnchor).isActive = true
- bottomLayoutGuide.heightAnchor.constraint(equalTo: container.heightAnchor, multiplier: 0.55).isActive = true
- subtitleLabel.topAnchor.constraint(equalTo: bottomLayoutGuide.topAnchor).isActive = true
- subtitleLabel.leadingAnchor.constraint(equalTo: container.leadingAnchor).isActive = true
- subtitleLabel.trailingAnchor.constraint(equalTo: container.trailingAnchor).isActive = true
- subtitleLabel.setContentHuggingPriority(.defaultHigh, for: .vertical)
- titleLabel.leadingAnchor.constraint(equalTo: container.leadingAnchor).isActive = true
- titleLabel.trailingAnchor.constraint(equalTo: container.trailingAnchor).isActive = true
- titleLabel.bottomAnchor.constraint(equalTo: subtitleLabel.topAnchor, constant: -defaultSpacing).isActive = true
- titleLabel.setContentHuggingPriority(.defaultHigh, for: .vertical)
- logoView.bottomAnchor.constraint(equalTo: titleLabel.topAnchor, constant: -defaultSpacing).isActive = true
- logoView.centerXAnchor.constraint(equalTo: container.centerXAnchor).isActive = true
- logoHeightConstraint.constant = calculateLogoHeight()
- logoHeightConstraint.isActive = true
- logoView.widthAnchor.constraint(equalTo: logoView.heightAnchor).isActive = true
- let logoTopAnchor = logoView.topAnchor.constraint(equalTo: container.topAnchor, constant: 20) // this will allow the container to grow in height
- logoTopAnchor.priority = .defaultLow
- logoTopAnchor.isActive = true
- let buttonContainerGuide = UILayoutGuide()
- container.addLayoutGuide(buttonContainerGuide)
- buttonContainerGuide.topAnchor.constraint(equalTo: subtitleLabel.bottomAnchor).isActive = true
- buttonContainerGuide.bottomAnchor.constraint(equalTo: container.bottomAnchor).isActive = true
- loginButton.setContentHuggingPriority(.defaultHigh, for: .vertical)
- container.addSubview(buttonStack)
- buttonStack.translatesAutoresizingMaskIntoConstraints = false
- buttonStack.centerXAnchor.constraint(equalTo: container.centerXAnchor).isActive = true
- buttonStack.centerYAnchor.constraint(equalTo: buttonContainerGuide.centerYAnchor).isActive = true
- let buttonStackTopAnchor = buttonStack.topAnchor.constraint(equalTo: buttonContainerGuide.topAnchor, constant: defaultSpacing)
- // this will allow the container to grow in height
- let buttonStackBottomAnchor = buttonStack.bottomAnchor.constraint(equalTo: buttonContainerGuide.bottomAnchor, constant: -50)
- _ = [buttonStackTopAnchor, buttonStackBottomAnchor].map {
- $0.priority = .defaultLow
- $0.isActive = true
- }
- }
- private func calculateLogoHeight() -> CGFloat {
- let titleHeight = titleLabel.intrinsicContentSize.height
- let subtitleHeight = subtitleLabel.intrinsicContentSize.height
- let intrinsicHeight = subtitleHeight + titleHeight
- let maxHeight: CGFloat = 100
- return intrinsicHeight > maxHeight ? maxHeight : intrinsicHeight
- }
- // MARK: - actions
- @objc private func loginButtonPressed(_ sender: UIButton) {
- onLogin?()
- }
- @objc private func qrCodeButtonPressed(_ sender: UIButton) {
- onScanQRCode?()
- }
- @objc private func importBackupButtonPressed(_ sender: UIButton) {
- onImportBackup?()
- }
- }
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