49d7896f8e
Some changes: - Convert most of the code to Swift. - Update the search result section headers to “Find by Number”/“Find by Username” instead of “Phone number search”/“Username search”. - Remove “New message to:” from the rows & update the icons. - Don’t look up phone numbers until the user taps the row. As a result, there’s no “No user found. Invite via SMS?” row. - Restore the invite via SMS feature if the user can’t be found. If a number appears unregistered, we’ll offer to send an SMS. - Start showing search results after 3 digits (approximately). - Show potentially-invalid phone numbers to avoid results that disappear if you happen to type a digit incorrectly.
273 lines
11 KiB
Swift
273 lines
11 KiB
Swift
//
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// Copyright 2016 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import ContactsUI
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import Foundation
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import MessageUI
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import SignalMessaging
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import SignalServiceKit
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@objc(OWSInviteFlow)
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public class InviteFlow: NSObject, MFMessageComposeViewControllerDelegate, MFMailComposeViewControllerDelegate, ContactsPickerDelegate {
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private enum Channel {
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case message, mail, twitter
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}
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private let installUrl = "https://signal.org/install/"
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private let homepageUrl = "https://signal.org"
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private weak var presentingViewController: UIViewController?
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private var modalPresentationViewController: UIViewController?
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private var channel: Channel?
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@objc
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public required init(presentingViewController: UIViewController) {
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self.presentingViewController = presentingViewController
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super.init()
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}
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deinit {
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Logger.verbose("deinit")
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}
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// MARK: - Localized Strings
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public static var unsupportedFeatureMessage: String {
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OWSLocalizedString(
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"UNSUPPORTED_FEATURE_ERROR",
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comment: "When inviting contacts to use Signal, this error is shown if the device doesn't support SMS or if there aren't any registered email accounts."
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)
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}
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// MARK: -
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@objc
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public func present(isAnimated: Bool, completion: (() -> Void)?) {
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let actions = [messageAction(), mailAction()].compactMap { $0 }
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if actions.count > 1 {
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let actionSheetController = ActionSheetController(title: nil, message: nil)
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actionSheetController.addAction(OWSActionSheets.dismissAction)
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for action in actions {
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actionSheetController.addAction(action)
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}
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presentingViewController?.present(actionSheetController, animated: isAnimated, completion: completion)
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} else if messageAction() != nil {
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presentInviteViaSMSFlow()
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} else if mailAction() != nil {
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presentInviteViaMailFlow()
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}
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}
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func presentViewController(_ vc: UIViewController, animated: Bool, completion: (() -> Void)? = nil) {
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let navController = OWSNavigationController(rootViewController: vc)
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presentingViewController?.presentFormSheet(navController, animated: true)
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modalPresentationViewController = navController
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}
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func popToPresentingViewController(animated: Bool, completion: (() -> Void)? = nil) {
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guard let modalVC = modalPresentationViewController else {
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owsFailDebug("Missing modal view controller")
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return
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}
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modalVC.dismiss(animated: true, completion: completion)
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self.modalPresentationViewController = nil
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}
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// MARK: ContactsPickerDelegate
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public func contactsPicker(_: ContactsPicker, didSelectMultipleContacts contacts: [Contact]) {
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Logger.debug("didSelectContacts:\(contacts)")
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guard let inviteChannel = channel else {
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Logger.error("unexpected nil channel after returning from contact picker.")
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popToPresentingViewController(animated: true)
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return
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}
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switch inviteChannel {
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case .message:
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let phoneNumbers: [String] = contacts.map { $0.userTextPhoneNumbers.first }.filter { $0 != nil }.map { $0! }
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dismissAndSendSMSTo(phoneNumbers: phoneNumbers)
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case .mail:
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let recipients: [String] = contacts.map { $0.emails.first }.filter { $0 != nil }.map { $0! }
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sendMailTo(emails: recipients)
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default:
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Logger.error("unexpected channel after returning from contact picker: \(inviteChannel)")
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}
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}
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public func contactsPicker(_: ContactsPicker, shouldSelectContact contact: Contact) -> Bool {
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guard let inviteChannel = channel else {
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Logger.error("unexpected nil channel in contact picker.")
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return true
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}
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switch inviteChannel {
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case .message:
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return contact.userTextPhoneNumbers.count > 0
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case .mail:
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return contact.emails.count > 0
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default:
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Logger.error("unexpected channel after returning from contact picker: \(inviteChannel)")
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}
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return true
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}
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public func contactsPicker(_: ContactsPicker, contactFetchDidFail error: NSError) {
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Logger.error("with error: \(error)")
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popToPresentingViewController(animated: true) {
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OWSActionSheets.showErrorAlert(message: OWSLocalizedString("ERROR_COULD_NOT_FETCH_CONTACTS", comment: "Error indicating that the phone's contacts could not be retrieved."))
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}
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}
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public func contactsPickerDidCancel(_: ContactsPicker) {
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Logger.debug("")
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popToPresentingViewController(animated: true)
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}
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public func contactsPicker(_: ContactsPicker, didSelectContact contact: Contact) {
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owsFailDebug("InviteFlow only supports multi-select")
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popToPresentingViewController(animated: true)
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}
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// MARK: SMS
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private func messageAction() -> ActionSheetAction? {
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guard MFMessageComposeViewController.canSendText() else {
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Logger.info("Device cannot send text")
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return nil
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}
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let messageTitle = OWSLocalizedString("SHARE_ACTION_MESSAGE", comment: "action sheet item to open native messages app")
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return ActionSheetAction(title: messageTitle, style: .default) { [weak self] _ in
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Logger.debug("Chose message.")
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self?.presentInviteViaSMSFlow()
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}
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}
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private func presentInviteViaSMSFlow() {
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self.channel = .message
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let picker = ContactsPicker(allowsMultipleSelection: true, subtitleCellType: .phoneNumber)
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picker.contactsPickerDelegate = self
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picker.title = OWSLocalizedString("INVITE_FRIENDS_PICKER_TITLE", comment: "Navbar title")
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presentViewController(picker, animated: true)
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}
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public func dismissAndSendSMSTo(phoneNumbers: [String]) {
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popToPresentingViewController(animated: true) {
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if phoneNumbers.count > 1 {
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let warning = ActionSheetController(title: nil,
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message: OWSLocalizedString("INVITE_WARNING_MULTIPLE_INVITES_BY_TEXT",
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comment: "Alert warning that sending an invite to multiple users will create a group message whose recipients will be able to see each other."))
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warning.addAction(ActionSheetAction(title: CommonStrings.continueButton,
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style: .default, handler: { [weak self] _ in
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self?.sendSMSTo(phoneNumbers: phoneNumbers)
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}))
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warning.addAction(OWSActionSheets.cancelAction)
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self.presentingViewController?.presentActionSheet(warning)
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} else {
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self.sendSMSTo(phoneNumbers: phoneNumbers)
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}
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}
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}
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@objc
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public func sendSMSTo(phoneNumbers: [String]) {
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let messageComposeViewController = MFMessageComposeViewController()
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messageComposeViewController.messageComposeDelegate = self
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messageComposeViewController.recipients = phoneNumbers
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let inviteText = OWSLocalizedString("SMS_INVITE_BODY", comment: "body sent to contacts when inviting to Install Signal")
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messageComposeViewController.body = inviteText.appending(" \(self.installUrl)")
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presentingViewController?.present(messageComposeViewController, animated: true)
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}
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// MARK: MessageComposeViewControllerDelegate
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public func messageComposeViewController(_ controller: MFMessageComposeViewController, didFinishWith result: MessageComposeResult) {
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presentingViewController?.dismiss(animated: true) {
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switch result {
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case .failed:
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let warning = ActionSheetController(title: nil, message: OWSLocalizedString("SEND_INVITE_FAILURE", comment: "Alert body after invite failed"))
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warning.addAction(OWSActionSheets.dismissAction)
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self.presentingViewController?.present(warning, animated: true, completion: nil)
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case .sent:
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Logger.debug("user successfully invited their friends via SMS.")
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case .cancelled:
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Logger.debug("user cancelled message invite")
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@unknown default:
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owsFailDebug("unknown MessageComposeResult: \(result)")
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}
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}
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}
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// MARK: Mail
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private func mailAction() -> ActionSheetAction? {
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guard MFMailComposeViewController.canSendMail() else {
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Logger.info("Device cannot send mail")
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return nil
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}
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let mailActionTitle = OWSLocalizedString("SHARE_ACTION_MAIL", comment: "action sheet item to open native mail app")
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return ActionSheetAction(title: mailActionTitle, style: .default) { [weak self] _ in
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Logger.debug("Chose mail.")
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self?.presentInviteViaMailFlow()
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}
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}
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private func presentInviteViaMailFlow() {
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self.channel = .mail
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let picker = ContactsPicker(allowsMultipleSelection: true, subtitleCellType: .email)
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picker.contactsPickerDelegate = self
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picker.title = OWSLocalizedString("INVITE_FRIENDS_PICKER_TITLE", comment: "Navbar title")
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presentViewController(picker, animated: true)
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}
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private func sendMailTo(emails recipientEmails: [String]) {
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let mailComposeViewController = MFMailComposeViewController()
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mailComposeViewController.mailComposeDelegate = self
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mailComposeViewController.setBccRecipients(recipientEmails)
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let subject = OWSLocalizedString("EMAIL_INVITE_SUBJECT", comment: "subject of email sent to contacts when inviting to install Signal")
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let bodyFormat = OWSLocalizedString("EMAIL_INVITE_BODY", comment: "body of email sent to contacts when inviting to install Signal. Embeds {{link to install Signal}} and {{link to the Signal home page}}")
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let body = String.init(format: bodyFormat, installUrl, homepageUrl)
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mailComposeViewController.setSubject(subject)
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mailComposeViewController.setMessageBody(body, isHTML: false)
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popToPresentingViewController(animated: true) {
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self.presentingViewController?.present(mailComposeViewController, animated: true)
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}
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}
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// MARK: MailComposeViewControllerDelegate
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public func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
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presentingViewController?.dismiss(animated: true) {
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switch result {
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case .failed:
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let warning = ActionSheetController(title: nil, message: OWSLocalizedString("SEND_INVITE_FAILURE", comment: "Alert body after invite failed"))
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warning.addAction(OWSActionSheets.dismissAction)
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self.presentingViewController?.present(warning, animated: true, completion: nil)
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case .sent:
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Logger.debug("user successfully invited their friends via mail.")
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case .saved:
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Logger.debug("user saved mail invite.")
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case .cancelled:
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Logger.debug("user cancelled mail invite.")
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@unknown default:
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owsFailDebug("unknown MFMailComposeResult: \(result)")
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}
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}
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}
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}
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