element-ios/Riot/Modules/KeyBackup/Recover/RecoveryKey/KeyBackupRecoverFromRecover...

270 lines
10 KiB
Swift

/*
Copyright 2019-2024 New Vector Ltd.
SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
*/
import UIKit
import MobileCoreServices
final class KeyBackupRecoverFromRecoveryKeyViewController: UIViewController {
// MARK: - Properties
// MARK: Outlets
@IBOutlet private weak var scrollView: UIScrollView!
@IBOutlet private weak var shieldImageView: UIImageView!
@IBOutlet private weak var informationLabel: UILabel!
@IBOutlet private weak var recoveryKeyTitleLabel: UILabel!
@IBOutlet private weak var recoveryKeyTextField: UITextField!
@IBOutlet private weak var recoveryKeyTextFieldBackgroundView: UIView!
@IBOutlet private weak var importFileButton: UIButton!
@IBOutlet private weak var unknownRecoveryKeyButton: UIButton!
@IBOutlet private weak var recoverButtonBackgroundView: UIView!
@IBOutlet private weak var recoverButton: UIButton!
// MARK: Private
private var viewModel: KeyBackupRecoverFromRecoveryKeyViewModelType!
private var keyboardAvoider: KeyboardAvoider?
private var theme: Theme!
private var errorPresenter: MXKErrorPresentation!
private var activityPresenter: ActivityIndicatorPresenter!
private weak var skipAlertController: UIAlertController?
// MARK: Public
// MARK: - Setup
class func instantiate(with viewModel: KeyBackupRecoverFromRecoveryKeyViewModelType) -> KeyBackupRecoverFromRecoveryKeyViewController {
let viewController = StoryboardScene.KeyBackupRecoverFromRecoveryKeyViewController.initialScene.instantiate()
viewController.viewModel = viewModel
viewController.theme = ThemeService.shared().theme
return viewController
}
// MARK: - Life cycle
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.title = VectorL10n.keyBackupRecoverTitle
self.vc_removeBackTitle()
self.setupViews()
self.keyboardAvoider = KeyboardAvoider(scrollViewContainerView: self.view, scrollView: self.scrollView)
self.activityPresenter = ActivityIndicatorPresenter()
self.errorPresenter = MXKErrorAlertPresentation()
self.registerThemeServiceDidChangeThemeNotification()
self.update(theme: self.theme)
self.viewModel.viewDelegate = self
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return self.theme.statusBarStyle
}
// MARK: - Private
private func setupViews() {
let cancelBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
self?.cancelButtonAction()
}
self.navigationItem.rightBarButtonItem = cancelBarButtonItem
self.scrollView.keyboardDismissMode = .interactive
let shieldImage = Asset.Images.keyBackupLogo.image.withRenderingMode(.alwaysTemplate)
self.shieldImageView.image = shieldImage
self.informationLabel.text = VectorL10n.keyBackupRecoverFromRecoveryKeyInfo
self.recoveryKeyTitleLabel.text = VectorL10n.keyBackupRecoverFromRecoveryKeyRecoveryKeyTitle
self.recoveryKeyTextField.addTarget(self, action: #selector(recoveryKeyTextFieldDidChange(_:)), for: .editingChanged)
let importFileImage = Asset.Images.importFilesButton.image.withRenderingMode(.alwaysTemplate)
self.importFileButton.setImage(importFileImage, for: .normal)
self.unknownRecoveryKeyButton.vc_enableMultiLinesTitle()
self.unknownRecoveryKeyButton.setTitle(VectorL10n.keyBackupRecoverFromRecoveryKeyLostRecoveryKeyAction, for: .normal)
// Interaction is disabled for the moment
self.unknownRecoveryKeyButton.isUserInteractionEnabled = false
self.recoverButton.vc_enableMultiLinesTitle()
self.recoverButton.setTitle(VectorL10n.keyBackupRecoverFromPassphraseRecoverAction, for: .normal)
self.updateRecoverButton()
}
private func update(theme: Theme) {
self.theme = theme
self.view.backgroundColor = theme.headerBackgroundColor
if let navigationBar = self.navigationController?.navigationBar {
theme.applyStyle(onNavigationBar: navigationBar)
}
self.informationLabel.textColor = theme.textPrimaryColor
self.shieldImageView.tintColor = theme.textPrimaryColor
self.recoveryKeyTextFieldBackgroundView.backgroundColor = theme.backgroundColor
self.recoveryKeyTitleLabel.textColor = theme.textPrimaryColor
theme.applyStyle(onTextField: self.recoveryKeyTextField)
self.recoveryKeyTextField.attributedPlaceholder = NSAttributedString(string: VectorL10n.keyBackupRecoverFromRecoveryKeyRecoveryKeyPlaceholder,
attributes: [.foregroundColor: theme.placeholderTextColor])
theme.applyStyle(onButton: self.importFileButton)
self.recoverButtonBackgroundView.backgroundColor = theme.backgroundColor
theme.applyStyle(onButton: self.recoverButton)
self.unknownRecoveryKeyButton.setTitleColor(theme.textPrimaryColor, for: .normal)
}
private func registerThemeServiceDidChangeThemeNotification() {
NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
}
@objc private func themeDidChange() {
self.update(theme: ThemeService.shared().theme)
}
private func updateRecoverButton() {
self.recoverButton.isEnabled = self.viewModel.isFormValid
}
private func render(viewState: KeyBackupRecoverFromRecoveryKeyViewState) {
switch viewState {
case .loading:
self.renderLoading()
case .loaded:
self.renderLoaded()
case .error(let error):
self.render(error: error)
}
}
private func renderLoading() {
self.view.endEditing(true)
self.activityPresenter.presentActivityIndicator(on: self.view, animated: true)
}
private func renderLoaded() {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
}
private func render(error: Error) {
self.activityPresenter.removeCurrentActivityIndicator(animated: true)
if (error as NSError).domain == MXKeyBackupErrorDomain
&& (error as NSError).code == Int(MXKeyBackupErrorInvalidRecoveryKeyCode.rawValue) {
self.errorPresenter.presentError(from: self,
title: VectorL10n.keyBackupRecoverInvalidRecoveryKeyTitle,
message: VectorL10n.keyBackupRecoverInvalidRecoveryKey,
animated: true,
handler: nil)
} else {
self.errorPresenter.presentError(from: self, forError: error, animated: true, handler: nil)
}
}
private func showFileSelection() {
// Show only text documents
let documentPicker = UIDocumentPickerViewController(documentTypes: [kUTTypeText as String], in: .import)
documentPicker.delegate = self
self.present(documentPicker, animated: true, completion: nil)
}
private func importRecoveryKey(from url: URL) {
if let recoveryKey = self.getDocumentContent(from: url) {
self.recoveryKeyTextField.text = recoveryKey
self.recoveryKeyTextFieldDidChange(self.recoveryKeyTextField)
} else {
self.errorPresenter.presentGenericError(from: self, animated: true, handler: nil)
}
}
private func getDocumentContent(from documentURL: URL) -> String? {
let documentContent: String?
do {
documentContent = try String(contentsOf: documentURL)
} catch {
MXLog.debug("Error: \(error)")
documentContent = nil
}
return documentContent
}
// MARK: - Actions
private func cancelButtonAction() {
self.viewModel.process(viewAction: .cancel)
}
@IBAction private func importFileButtonAction(_ sender: Any) {
self.showFileSelection()
}
@objc private func recoveryKeyTextFieldDidChange(_ textField: UITextField) {
self.viewModel.recoveryKey = textField.text
self.updateRecoverButton()
}
@IBAction private func usePassphraseButtonAction(_ sender: Any) {
self.viewModel.process(viewAction: .recover)
}
@IBAction private func unknownPassphraseButtonAction(_ sender: Any) {
self.viewModel.process(viewAction: .unknownRecoveryKey)
}
}
// MARK: - UITextFieldDelegate
extension KeyBackupRecoverFromRecoveryKeyViewController: UITextFieldDelegate {
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
}
// MARK: - KeyBackupRecoverFromRecoveryKeyViewModelViewDelegate
extension KeyBackupRecoverFromRecoveryKeyViewController: KeyBackupRecoverFromRecoveryKeyViewModelViewDelegate {
func keyBackupRecoverFromPassphraseViewModel(_ viewModel: KeyBackupRecoverFromRecoveryKeyViewModelType, didUpdateViewState viewSate: KeyBackupRecoverFromRecoveryKeyViewState) {
self.render(viewState: viewSate)
}
}
// MARK: - UIDocumentPickerDelegate
extension KeyBackupRecoverFromRecoveryKeyViewController: UIDocumentPickerDelegate {
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
guard let documentUrl = urls.first else {
return
}
self.importRecoveryKey(from: documentUrl)
}
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentAt url: URL) {
self.importRecoveryKey(from: url)
}
}