mirror of https://github.com/oxen-io/session-ios
Implement join public chat screen redesign
Niels Andriesse
6 years ago
parent
eed8790e93
commit
3c904be879
@ -1,100 +0,0 @@
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@objc(LKJoinPublicChatVC)
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final class JoinPublicChatVC : OWSViewController {
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// MARK: Components
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private lazy var urlTextField: UITextField = {
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let result = UITextField()
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result.textColor = Theme.primaryColor
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result.font = .ows_dynamicTypeBodyClamped
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let placeholder = NSMutableAttributedString(string: NSLocalizedString("Enter a URL", comment: ""))
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placeholder.addAttribute(.foregroundColor, value: Theme.placeholderColor, range: NSRange(location: 0, length: placeholder.length))
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result.attributedPlaceholder = placeholder
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result.tintColor = .lokiGreen()
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result.keyboardAppearance = .dark
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result.keyboardType = .URL
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result.autocapitalizationType = .none
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return result
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}()
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private lazy var addButton = OWSFlatButton.button(title: NSLocalizedString("Add", comment: ""), font: UIFont.ows_dynamicTypeBodyClamped.ows_mediumWeight(), titleColor: .white, backgroundColor: .lokiGreen(), target: self, selector: #selector(handleAddButtonTapped))
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// MARK: Lifecycle
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override func viewDidLoad() {
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// Background color & margins
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view.backgroundColor = Theme.backgroundColor
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view.layoutMargins = .zero
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// Navigation bar
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navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop, target: self, action: #selector(close))
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title = NSLocalizedString("Add Public Chat", comment: "")
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// Separator
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let separator = UIView()
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separator.autoSetDimension(.height, toSize: 1 / UIScreen.main.scale)
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separator.backgroundColor = Theme.hairlineColor
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// Explanation label
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let explanationLabel = UILabel()
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explanationLabel.textColor = Theme.primaryColor
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explanationLabel.font = UIFont.ows_dynamicTypeSubheadlineClamped
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explanationLabel.text = NSLocalizedString("Enter the URL of the public chat you'd like to join. The Loki Public Chat URL is https://chat.lokinet.org.", comment: "")
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explanationLabel.numberOfLines = 0
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explanationLabel.lineBreakMode = .byWordWrapping
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// Add button
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let addButtonHeight = addButton.button.titleLabel!.font.pointSize * 48 / 17
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addButton.autoSetDimension(.height, toSize: addButtonHeight)
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updateAddButton(isConnecting: false)
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// Stack view
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let stackView = UIStackView(arrangedSubviews: [ urlTextField, UIView.spacer(withHeight: 8), separator, UIView.spacer(withHeight: 24), explanationLabel, UIView.vStretchingSpacer(), addButton ])
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stackView.axis = .vertical
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stackView.alignment = .fill
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stackView.layoutMargins = UIEdgeInsets(top: 16, left: 16, bottom: 16, right: 16)
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stackView.isLayoutMarginsRelativeArrangement = true
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view.addSubview(stackView)
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stackView.autoPinWidthToSuperview()
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stackView.autoPin(toTopLayoutGuideOf: self, withInset: 0)
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autoPinView(toBottomOfViewControllerOrKeyboard: stackView, avoidNotch: true)
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}
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override func viewDidAppear(_ animated: Bool) {
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super.viewDidAppear(animated)
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urlTextField.becomeFirstResponder()
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}
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// MARK: Updating
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private func updateAddButton(isConnecting: Bool) {
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addButton.setEnabled(!isConnecting)
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addButton.setTitle(isConnecting ? NSLocalizedString("Connecting...", comment: "") : NSLocalizedString("Add", comment: ""))
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}
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// MARK: General
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private func showError(title: String, message: String = "") {
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let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default, handler: nil))
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presentAlert(alert)
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}
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// MARK: Interaction
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@objc private func close() {
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dismiss(animated: true, completion: nil)
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}
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@objc private func handleAddButtonTapped() {
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let uncheckedURL = (urlTextField.text?.trimmingCharacters(in: .whitespaces) ?? "").lowercased().replacingOccurrences(of: "http://", with: "https://")
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guard let url = URL(string: uncheckedURL), let scheme = url.scheme, scheme == "https", url.host != nil else {
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return showError(title: NSLocalizedString("Invalid URL", comment: ""), message: NSLocalizedString("Please check the URL you entered and try again.", comment: ""))
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}
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updateAddButton(isConnecting: true)
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let channelID: UInt64 = 1
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let urlAsString = url.absoluteString
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let displayName = OWSProfileManager.shared().localProfileName()
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LokiPublicChatManager.shared.addChat(server: urlAsString, channel: channelID)
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.done(on: .main) { [weak self] _ in
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let _ = LokiPublicChatAPI.getMessages(for: channelID, on: urlAsString)
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let _ = LokiPublicChatAPI.setDisplayName(to: displayName, on: urlAsString)
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self?.presentingViewController!.dismiss(animated: true, completion: nil)
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}
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.catch(on: .main) { [weak self] _ in
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self?.updateAddButton(isConnecting: false)
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self?.showError(title: NSLocalizedString("Couldn't Connect", comment: ""))
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}
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}
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}
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@ -0,0 +1,296 @@
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final class JoinPublicChatVC : UIViewController, UIPageViewControllerDataSource, UIPageViewControllerDelegate, OWSQRScannerDelegate {
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private let pageVC = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: nil)
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private var pages: [UIViewController] = []
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private var isJoining = false
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private var targetVCIndex: Int?
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// MARK: Components
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private lazy var tabBar: TabBar = {
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let tabs = [
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TabBar.Tab(title: NSLocalizedString("Enter Chat URL", comment: "")) { [weak self] in
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guard let self = self else { return }
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self.pageVC.setViewControllers([ self.pages[0] ], direction: .forward, animated: false, completion: nil)
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},
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TabBar.Tab(title: NSLocalizedString("Scan QR Code", comment: "")) { [weak self] in
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guard let self = self else { return }
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self.pageVC.setViewControllers([ self.pages[1] ], direction: .forward, animated: false, completion: nil)
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}
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]
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return TabBar(tabs: tabs)
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}()
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private lazy var enterChatURLVC: EnterChatURLVC = {
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let result = EnterChatURLVC()
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result.joinPublicChatVC = self
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return result
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}()
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private lazy var scanQRCodePlaceholderVC: ScanQRCodePlaceholderVC = {
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let result = ScanQRCodePlaceholderVC()
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result.joinPublicChatVC = self
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return result
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}()
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private lazy var scanQRCodeWrapperVC: ScanQRCodeWrapperVC = {
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let message = NSLocalizedString("Scan the QR code of the public chat you'd like to join", comment: "")
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let result = ScanQRCodeWrapperVC(message: message)
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result.delegate = self
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return result
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}()
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// MARK: Lifecycle
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override func viewDidLoad() {
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// Set gradient background
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view.backgroundColor = .clear
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let gradient = Gradients.defaultLokiBackground
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view.setGradient(gradient)
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// Set navigation bar background color
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let navigationBar = navigationController!.navigationBar
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navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
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navigationBar.shadowImage = UIImage()
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navigationBar.isTranslucent = false
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navigationBar.barTintColor = Colors.navigationBarBackground
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// Set up navigation bar buttons
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let closeButton = UIBarButtonItem(image: #imageLiteral(resourceName: "X"), style: .plain, target: self, action: #selector(close))
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closeButton.tintColor = Colors.text
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navigationItem.leftBarButtonItem = closeButton
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// Customize title
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let titleLabel = UILabel()
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titleLabel.text = NSLocalizedString("Join Public Chat", comment: "")
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titleLabel.textColor = Colors.text
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titleLabel.font = UIFont.boldSystemFont(ofSize: Values.veryLargeFontSize)
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navigationItem.titleView = titleLabel
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// Set up page VC
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let hasCameraAccess = (AVCaptureDevice.authorizationStatus(for: .video) == .authorized)
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pages = [ enterChatURLVC, (hasCameraAccess ? scanQRCodeWrapperVC : scanQRCodePlaceholderVC) ]
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pageVC.dataSource = self
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pageVC.delegate = self
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pageVC.setViewControllers([ enterChatURLVC ], direction: .forward, animated: false, completion: nil)
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// Set up tab bar
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view.addSubview(tabBar)
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tabBar.pin(.leading, to: .leading, of: view)
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tabBar.pin(.top, to: .top, of: view, withInset: navigationBar.height())
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view.pin(.trailing, to: .trailing, of: tabBar)
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// Set up page VC constraints
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let pageVCView = pageVC.view!
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view.addSubview(pageVCView)
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pageVCView.pin(.leading, to: .leading, of: view)
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pageVCView.pin(.top, to: .bottom, of: tabBar)
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view.pin(.trailing, to: .trailing, of: pageVCView)
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view.pin(.bottom, to: .bottom, of: pageVCView)
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let screen = UIScreen.main.bounds
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pageVCView.set(.width, to: screen.width)
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let height = navigationController!.view.bounds.height - navigationBar.height() - Values.tabBarHeight
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pageVCView.set(.height, to: height)
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enterChatURLVC.constrainHeight(to: height)
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scanQRCodePlaceholderVC.constrainHeight(to: height)
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}
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// MARK: General
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func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
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guard let index = pages.firstIndex(of: viewController), index != 0 else { return nil }
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return pages[index - 1]
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}
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func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
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guard let index = pages.firstIndex(of: viewController), index != (pages.count - 1) else { return nil }
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return pages[index + 1]
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}
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fileprivate func handleCameraAccessGranted() {
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pages[1] = scanQRCodeWrapperVC
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pageVC.setViewControllers([ scanQRCodeWrapperVC ], direction: .forward, animated: false, completion: nil)
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}
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// MARK: Updating
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func pageViewController(_ pageViewController: UIPageViewController, willTransitionTo pendingViewControllers: [UIViewController]) {
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guard let targetVC = pendingViewControllers.first, let index = pages.firstIndex(of: targetVC) else { return }
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targetVCIndex = index
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}
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func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating isFinished: Bool, previousViewControllers: [UIViewController], transitionCompleted isCompleted: Bool) {
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guard isCompleted, let index = targetVCIndex else { return }
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tabBar.selectTab(at: index)
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}
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// MARK: Interaction
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@objc private func close() {
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dismiss(animated: true, completion: nil)
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}
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func controller(_ controller: OWSQRCodeScanningViewController, didDetectQRCodeWith string: String) {
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let chatURL = string
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joinPublicChatIfPossible(with: chatURL)
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}
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fileprivate func joinPublicChatIfPossible(with chatURL: String) {
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guard !isJoining else { return }
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guard let url = URL(string: chatURL), let scheme = url.scheme, scheme == "https", url.host != nil else {
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return showError(title: NSLocalizedString("Invalid URL", comment: ""), message: NSLocalizedString("Please check the URL you entered and try again", comment: ""))
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}
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isJoining = true
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let channelID: UInt64 = 1
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let urlAsString = url.absoluteString
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let displayName = OWSProfileManager.shared().localProfileName()
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// TODO: Profile picture & profile key
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LokiPublicChatManager.shared.addChat(server: urlAsString, channel: channelID)
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.done(on: .main) { [weak self] _ in
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let _ = LokiPublicChatAPI.getMessages(for: channelID, on: urlAsString)
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let _ = LokiPublicChatAPI.setDisplayName(to: displayName, on: urlAsString)
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self?.presentingViewController!.dismiss(animated: true, completion: nil)
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}
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.catch(on: .main) { [weak self] _ in
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self?.isJoining = false
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self?.showError(title: NSLocalizedString("Couldn't Join", comment: ""))
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}
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}
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// MARK: Convenience
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private func showError(title: String, message: String = "") {
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let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .default, handler: nil))
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presentAlert(alert)
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}
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}
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private final class EnterChatURLVC : UIViewController {
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weak var joinPublicChatVC: JoinPublicChatVC!
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private var bottomConstraint: NSLayoutConstraint!
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// MARK: Components
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private lazy var chatURLTextField: TextField = {
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let result = TextField(placeholder: "https://chat.lokinet.org")
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result.keyboardType = .URL
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result.autocapitalizationType = .none
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return result
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}()
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// MARK: Lifecycle
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override func viewDidLoad() {
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// Remove background color
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view.backgroundColor = .clear
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// Set up explanation label
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let explanationLabel = UILabel()
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explanationLabel.textColor = Colors.text.withAlphaComponent(Values.unimportantElementOpacity)
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explanationLabel.font = .systemFont(ofSize: Values.smallFontSize)
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explanationLabel.text = NSLocalizedString("Enter the URL of the public chat you'd like to join", comment: "")
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explanationLabel.numberOfLines = 0
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explanationLabel.textAlignment = .center
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explanationLabel.lineBreakMode = .byWordWrapping
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// Next button
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let nextButton = Button(style: .prominent)
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nextButton.setTitle(NSLocalizedString("Next", comment: ""), for: UIControl.State.normal)
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nextButton.addTarget(self, action: #selector(joinPublicChatIfPossible), for: UIControl.Event.touchUpInside)
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let nextButtonContainer = UIView()
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nextButtonContainer.addSubview(nextButton)
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nextButton.pin(.leading, to: .leading, of: nextButtonContainer, withInset: 80)
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nextButton.pin(.top, to: .top, of: nextButtonContainer)
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nextButtonContainer.pin(.trailing, to: .trailing, of: nextButton, withInset: 80)
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nextButtonContainer.pin(.bottom, to: .bottom, of: nextButton)
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// Stack view
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let stackView = UIStackView(arrangedSubviews: [ chatURLTextField, UIView.spacer(withHeight: Values.smallSpacing), explanationLabel, UIView.vStretchingSpacer(), nextButtonContainer ])
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stackView.axis = .vertical
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stackView.alignment = .fill
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stackView.layoutMargins = UIEdgeInsets(top: Values.mediumSpacing, left: Values.largeSpacing, bottom: Values.mediumSpacing, right: Values.largeSpacing)
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stackView.isLayoutMarginsRelativeArrangement = true
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view.addSubview(stackView)
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stackView.pin(.leading, to: .leading, of: view)
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stackView.pin(.top, to: .top, of: view)
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view.pin(.trailing, to: .trailing, of: stackView)
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bottomConstraint = view.pin(.bottom, to: .bottom, of: stackView)
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// Set up width constraint
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view.set(.width, to: UIScreen.main.bounds.width)
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// Dismiss keyboard on tap
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let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboard))
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view.addGestureRecognizer(tapGestureRecognizer)
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// Listen to keyboard notifications
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let notificationCenter = NotificationCenter.default
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notificationCenter.addObserver(self, selector: #selector(handleKeyboardWillChangeFrameNotification(_:)), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
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notificationCenter.addObserver(self, selector: #selector(handleKeyboardWillHideNotification(_:)), name: UIResponder.keyboardWillHideNotification, object: nil)
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}
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deinit {
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NotificationCenter.default.removeObserver(self)
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}
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// MARK: General
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func constrainHeight(to height: CGFloat) {
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view.set(.height, to: height)
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}
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@objc private func dismissKeyboard() {
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chatURLTextField.resignFirstResponder()
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}
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// MARK: Updating
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@objc private func handleKeyboardWillChangeFrameNotification(_ notification: Notification) {
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guard let newHeight = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue.size.height else { return }
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bottomConstraint.constant = newHeight
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UIView.animate(withDuration: 0.25) {
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||||||
|
self.view.layoutIfNeeded()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
@objc private func handleKeyboardWillHideNotification(_ notification: Notification) {
|
||||||
|
bottomConstraint.constant = 0
|
||||||
|
UIView.animate(withDuration: 0.25) {
|
||||||
|
self.view.layoutIfNeeded()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// MARK: Interaction
|
||||||
|
@objc private func joinPublicChatIfPossible() {
|
||||||
|
let chatURL = chatURLTextField.text?.trimmingCharacters(in: .whitespaces) ?? ""
|
||||||
|
joinPublicChatVC.joinPublicChatIfPossible(with: chatURL)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private final class ScanQRCodePlaceholderVC : UIViewController {
|
||||||
|
weak var joinPublicChatVC: JoinPublicChatVC!
|
||||||
|
|
||||||
|
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("Loki Messenger needs camera access to scan QR codes", 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("Enable Camera Access", 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?.joinPublicChatVC.handleCameraAccessGranted()
|
||||||
|
} else {
|
||||||
|
// Do nothing
|
||||||
|
}
|
||||||
|
})
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue