Signal-iOS/Signal/src/ViewControllers/NewGroupView/BaseGroupMemberViewController.swift
2020-08-10 19:46:23 -03:00

605 lines
23 KiB
Swift

//
// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
//
import Foundation
import SafariServices
import PromiseKit
protocol GroupMemberViewDelegate: class {
var groupMemberViewRecipientSet: OrderedSet<PickedRecipient> { get }
var groupMemberViewHasUnsavedChanges: Bool { get }
var shouldTryToEnableGroupsV2ForMembers: Bool { get }
func groupMemberViewRemoveRecipient(_ recipient: PickedRecipient)
func groupMemberViewAddRecipient(_ recipient: PickedRecipient)
func groupMemberViewCanAddRecipient(_ recipient: PickedRecipient) -> Bool
func groupMemberViewShouldShowMemberCount() -> Bool
func groupMemberViewGroupMemberCountForDisplay() -> Int
func groupMemberViewIsGroupFull() -> Bool
func groupMemberViewIsPreExistingMember(_ recipient: PickedRecipient) -> Bool
func groupMemberViewIsGroupsV2Required() -> Bool
func groupMemberViewDismiss()
}
// MARK: -
// A base class used in two scenarios:
//
// * Picking members for a new group.
// * Add new members to an existing group.
@objc
public class BaseGroupMemberViewController: OWSViewController {
// MARK: - Dependencies
private var databaseStorage: SDSDatabaseStorage {
return SDSDatabaseStorage.shared
}
private class var contactsManager: OWSContactsManager {
return Environment.shared.contactsManager
}
private var tsAccountManager: TSAccountManager {
return .sharedInstance()
}
// MARK: -
// This delegate is the subclass.
weak var groupMemberViewDelegate: GroupMemberViewDelegate?
private var recipientSet: OrderedSet<PickedRecipient> {
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return OrderedSet<PickedRecipient>()
}
return groupMemberViewDelegate.groupMemberViewRecipientSet
}
var hasUnsavedChanges: Bool {
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return false
}
return groupMemberViewDelegate.groupMemberViewHasUnsavedChanges
}
private let recipientPicker = RecipientPickerViewController()
private let memberBar = NewGroupMembersBar()
private let memberCountLabel = UILabel()
private let memberCountWrapper = UIView()
public override init() {
super.init()
}
// MARK: - View Lifecycle
@objc
public override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = Theme.backgroundColor
// First section.
memberBar.delegate = self
// Don't use dynamic type in this label.
memberCountLabel.font = UIFont.ows_dynamicTypeBody2.withSize(12)
memberCountLabel.textColor = Theme.secondaryTextAndIconColor
memberCountLabel.textAlignment = CurrentAppContext().isRTL ? .left : .right
memberCountWrapper.addSubview(memberCountLabel)
memberCountLabel.autoPinEdgesToSuperviewMargins()
memberCountWrapper.layoutMargins = UIEdgeInsets(top: 0, leading: 12, bottom: 0, trailing: 12)
recipientPicker.allowsSelectingUnregisteredPhoneNumbers = false
recipientPicker.shouldShowGroups = false
recipientPicker.allowsSelectingUnregisteredPhoneNumbers = false
recipientPicker.showUseAsyncSelection = true
recipientPicker.delegate = self
addChild(recipientPicker)
view.addSubview(recipientPicker.view)
recipientPicker.view.autoPin(toTopLayoutGuideOf: self, withInset: 0)
recipientPicker.view.autoPinEdge(toSuperviewSafeArea: .leading)
recipientPicker.view.autoPinEdge(toSuperviewSafeArea: .trailing)
autoPinView(toBottomOfViewControllerOrKeyboard: recipientPicker.view, avoidNotch: false)
updateMemberCount()
tryToFillInMissingUuuids()
}
private func tryToFillInMissingUuuids() {
let addresses = recipientPicker.contactsViewHelper.signalAccounts.map { $0.recipientAddress }
firstly {
GroupManager.tryToFillInMissingUuuids(for: addresses, isBlocking: false)
}.catch { error in
owsFailDebug("Error: \(error)")
}
}
@objc
public override func viewWillLayoutSubviews() {
updateMemberBarHeightConstraint()
super.viewWillLayoutSubviews()
}
private func updateMemberBarHeightConstraint() {
memberBar.updateHeightConstraint()
}
private func updateMemberCount() {
guard !recipientSet.isEmpty else {
memberCountWrapper.isHidden = true
return
}
guard let groupMemberViewDelegate = groupMemberViewDelegate,
groupMemberViewDelegate.groupMemberViewShouldShowMemberCount() else {
memberCountWrapper.isHidden = true
return
}
memberCountWrapper.isHidden = false
let format = NSLocalizedString("GROUP_MEMBER_COUNT_FORMAT",
comment: "Format string for the group member count indicator. Embeds {{ %1$@ the number of members in the group, %2$@ the maximum number of members in the group. }}.")
let memberCount = groupMemberViewDelegate.groupMemberViewGroupMemberCountForDisplay()
memberCountLabel.text = String(format: format,
OWSFormat.formatInt(memberCount),
OWSFormat.formatUInt(GroupManager.maxGroupsV2MemberCount))
}
public func removeRecipient(_ recipient: PickedRecipient) {
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return
}
groupMemberViewDelegate.groupMemberViewRemoveRecipient(recipient)
recipientPicker.pickedRecipients = recipientSet.orderedMembers
updateMemberBar()
updateMemberCount()
}
public func addRecipient(_ recipient: PickedRecipient) {
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return
}
guard !recipientSet.contains(recipient) else {
owsFailDebug("Recipient already added.")
return
}
guard groupMemberViewDelegate.groupMemberViewCanAddRecipient(recipient) else {
showInvalidGroupMemberAlert(recipient: recipient)
return
}
guard !groupMemberViewDelegate.groupMemberViewIsGroupFull() else {
showGroupFullAlert()
return
}
groupMemberViewDelegate.groupMemberViewAddRecipient(recipient)
recipientPicker.pickedRecipients = recipientSet.orderedMembers
recipientPicker.clearSearchText()
updateMemberBar()
updateMemberCount()
memberBar.scrollToRecipient(recipient)
}
private func updateMemberBar() {
memberBar.setMembers(databaseStorage.uiRead { transaction in
self.orderedMembers(shouldSort: false, transaction: transaction)
})
}
private func orderedMembers(shouldSort: Bool, transaction: SDSAnyReadTransaction) -> [NewGroupMember] {
return Self.orderedMembers(recipientSet: recipientSet, shouldSort: shouldSort, transaction: transaction)
}
class func orderedMembers(recipientSet: OrderedSet<PickedRecipient>,
shouldSort: Bool,
transaction: SDSAnyReadTransaction) -> [NewGroupMember] {
var members = recipientSet.orderedMembers.compactMap { (recipient: PickedRecipient) -> NewGroupMember? in
guard let address = recipient.address else {
owsFailDebug("Invalid recipient.")
return nil
}
let displayName = self.contactsManager.displayName(for: address, transaction: transaction)
let shortDisplayName = self.contactsManager.shortDisplayName(for: address, transaction: transaction)
let comparableName = self.contactsManager.comparableName(for: address, transaction: transaction)
let conversationColorName = ConversationColorName(
rawValue: self.contactsManager.conversationColorName(for: address, transaction: transaction)
)
return NewGroupMember(recipient: recipient,
address: address,
displayName: displayName,
shortName: shortDisplayName,
comparableName: comparableName,
conversationColorName: conversationColorName)
}
if shouldSort {
members.sort { (left, right) in
return left.comparableName < right.comparableName
}
}
return members
}
private func showInvalidGroupMemberAlert(recipient: PickedRecipient) {
let actionSheet = ActionSheetController(title: CommonStrings.errorAlertTitle,
message: NSLocalizedString("EDIT_GROUP_ERROR_CANNOT_ADD_MEMBER",
comment: "Error message indicating the a user can't be added to a group."))
actionSheet.addAction(ActionSheetAction(title: CommonStrings.learnMore,
style: .default) { _ in
self.showCantAddMemberView()
})
actionSheet.addAction(ActionSheetAction(title: CommonStrings.okayButton,
style: .default))
presentActionSheet(actionSheet)
}
private func showGroupFullAlert() {
OWSActionSheets.showErrorAlert(message: NSLocalizedString("EDIT_GROUP_ERROR_CANNOT_ADD_MEMBER_GROUP_FULL",
comment: "Message for 'group full' error alert when a user can't be added to a group."))
}
private func showCantAddMemberView() {
guard let url = URL(string: "https://support.signal.org/hc/articles/360007319331") else {
owsFailDebug("Invalid url.")
return
}
let vc = SFSafariViewController(url: url)
present(vc, animated: true, completion: nil)
}
// MARK: -
public override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
guard let navigationController = navigationController else {
owsFailDebug("Missing navigationController.")
return
}
if navigationController.viewControllers.count == 1 {
navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop,
target: self,
action: #selector(dismissPressed))
}
}
@objc
func dismissPressed() {
if !self.hasUnsavedChanges {
// If user made no changes, dismiss.
self.groupMemberViewDelegate?.groupMemberViewDismiss()
return
}
OWSActionSheets.showPendingChangesActionSheet { [weak self] in
self?.groupMemberViewDelegate?.groupMemberViewDismiss()
}
}
// MARK: - Event Handling
private func backButtonPressed() {
guard let navigationController = navigationController else {
owsFailDebug("Missing navigationController.")
return
}
if !hasUnsavedChanges {
// If user made no changes, return to previous view.
navigationController.popViewController(animated: true)
return
}
OWSActionSheets.showPendingChangesActionSheet { [weak self] in
self?.groupMemberViewDelegate?.groupMemberViewDismiss()
}
}
}
// MARK: -
extension BaseGroupMemberViewController: RecipientPickerDelegate {
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
canSelectRecipient recipient: PickedRecipient) -> RecipientPickerRecipientState {
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return .unknownError
}
guard !groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient) else {
return .duplicateGroupMember
}
return .canBeSelected
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
didSelectRecipient recipient: PickedRecipient) {
guard let address = recipient.address else {
owsFailDebug("Missing address.")
return
}
guard address.isValid else {
owsFailDebug("Invalid address.")
return
}
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return
}
guard !groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient) else {
owsFailDebug("Can't re-add pre-existing member.")
return
}
guard let navigationController = navigationController else {
owsFailDebug("Missing navigationController.")
return
}
let isCurrentMember = recipientSet.contains(recipient)
let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
let addRecipientCompletion = { [weak self] in
guard let self = self else {
return
}
self.addRecipient(recipient)
navigationController.popToViewController(self, animated: true)
}
if isCurrentMember {
removeRecipient(recipient)
} else if isBlocked {
BlockListUIUtils.showUnblockAddressActionSheet(address,
from: self) { isStillBlocked in
if !isStillBlocked {
addRecipientCompletion()
}
}
} else {
let confirmationText = NSLocalizedString("SAFETY_NUMBER_CHANGED_CONFIRM_ADD_TO_GROUP_ACTION",
comment: "button title to confirm adding a recipient to a group when their safety number has recently changed")
let didShowSNAlert = SafetyNumberConfirmationSheet.presentIfNecessary(
address: address,
confirmationText: confirmationText
) { didConfirmIdentity in
guard didConfirmIdentity else { return }
addRecipientCompletion()
}
if didShowSNAlert {
return
}
addRecipientCompletion()
}
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
willRenderRecipient recipient: PickedRecipient) {
guard let address = recipient.address else {
owsFailDebug("Invalid recipient.")
return
}
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing delegate.")
return
}
guard RemoteConfig.groupsV2GoodCitizen else {
return
}
guard groupMemberViewDelegate.shouldTryToEnableGroupsV2ForMembers else {
return
}
DispatchQueue.global().async {
if !self.doesRecipientSupportGroupsV2(recipient) {
self.tryToEnableGroupsV2ForAddress(address,
isBlocking: false,
ignoreErrors: true)
}
}
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
prepareToSelectRecipient recipient: PickedRecipient) -> AnyPromise {
guard let address = recipient.address else {
owsFailDebug("Invalid recipient.")
return AnyPromise(Promise.value(()))
}
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing delegate.")
return AnyPromise(Promise.value(()))
}
guard RemoteConfig.groupsV2GoodCitizen else {
return AnyPromise(Promise.value(()))
}
guard groupMemberViewDelegate.shouldTryToEnableGroupsV2ForMembers else {
return AnyPromise(Promise.value(()))
}
guard !doesRecipientSupportGroupsV2(recipient) else {
// Recipient already supports groups v2.
return AnyPromise(Promise.value(()))
}
let ignoreErrors = !groupMemberViewDelegate.groupMemberViewIsGroupsV2Required()
return AnyPromise(tryToEnableGroupsV2ForAddress(address,
isBlocking: true,
ignoreErrors: ignoreErrors))
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
showInvalidRecipientAlert recipient: PickedRecipient) {
AssertIsOnMainThread()
showInvalidGroupMemberAlert(recipient: recipient)
}
private func doesRecipientSupportGroupsV2(_ recipient: PickedRecipient) -> Bool {
guard let address = recipient.address else {
owsFailDebug("Invalid recipient.")
return false
}
return doesRecipientSupportGroupsV2(address)
}
private func doesRecipientSupportGroupsV2(_ address: SignalServiceAddress) -> Bool {
return databaseStorage.read { transaction in
return GroupManager.doesUserSupportGroupsV2(address: address, transaction: transaction)
}
}
func tryToEnableGroupsV2ForAddress(_ address: SignalServiceAddress,
isBlocking: Bool,
ignoreErrors: Bool) -> Promise<Void> {
return firstly { () -> Promise<Void> in
return GroupManager.tryToEnableGroupsV2(for: [address],
isBlocking: isBlocking,
ignoreErrors: ignoreErrors)
}.done(on: .global() ) { [weak self] _ in
// If we succeeded in enable groups v2 for this address,
// reload the recipient picker to reflect that.
if self?.doesRecipientSupportGroupsV2(address) ?? false {
DispatchQueue.main.async {
// Reload view content.
self?.recipientPicker.reloadContent()
}
}
}
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
accessoryMessageForRecipient recipient: PickedRecipient) -> String? {
guard let address = recipient.address else {
owsFailDebug("Missing address.")
return nil
}
guard address.isValid else {
owsFailDebug("Invalid address.")
return nil
}
let isCurrentMember = recipientSet.contains(recipient)
let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
if isCurrentMember {
return nil
} else if isBlocked {
return MessageStrings.conversationIsBlocked
} else {
return nil
}
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
accessoryViewForRecipient recipient: PickedRecipient) -> UIView? {
guard let address = recipient.address else {
owsFailDebug("Missing address.")
return nil
}
guard address.isValid else {
owsFailDebug("Invalid address.")
return nil
}
guard let groupMemberViewDelegate = groupMemberViewDelegate else {
owsFailDebug("Missing groupMemberViewDelegate.")
return nil
}
let isCurrentMember = recipientSet.contains(recipient)
let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
let isPreExistingMember = groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient)
let imageView = UIImageView()
if isPreExistingMember {
imageView.setTemplateImageName("check-circle-solid-24", tintColor: Theme.washColor)
} else if isCurrentMember {
imageView.setTemplateImageName("check-circle-solid-24", tintColor: Theme.accentBlueColor)
} else if isBlocked {
// Use accessoryMessageForRecipient: to show blocked indicator.
return nil
} else {
imageView.setTemplateImageName("empty-circle-outline-24", tintColor: .ows_gray25)
}
return imageView
}
func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
attributedSubtitleForRecipient recipient: PickedRecipient) -> NSAttributedString? {
guard DebugFlags.groupsV2memberStatusIndicators else {
return nil
}
guard let address = recipient.address else {
owsFailDebug("Recipient missing address.")
return nil
}
var items = [String]()
if address.uuid == nil {
// This is internal-only; we don't need to localize.
items.append("No UUID")
}
databaseStorage.read { transaction in
if !GroupManager.doesUserHaveGroupsV2Capability(address: address,
transaction: transaction) {
// This is internal-only; we don't need to localize.
items.append("No capability")
}
}
guard !items.isEmpty else {
return nil
}
return NSAttributedString(string: items.joined(separator: ", "),
attributes: [
.font: UIFont.ows_dynamicTypeSubheadline.ows_semibold(),
.foregroundColor: Theme.secondaryTextAndIconColor
])
}
func recipientPickerTableViewWillBeginDragging(_ recipientPickerViewController: RecipientPickerViewController) {}
func recipientPickerNewGroupButtonWasPressed() {}
func recipientPickerCustomHeaderViews() -> [UIView] {
return [memberBar, memberCountWrapper]
}
}
// MARK: -
extension BaseGroupMemberViewController: OWSNavigationView {
public func shouldCancelNavigationBack() -> Bool {
let hasUnsavedChanges = self.hasUnsavedChanges
if hasUnsavedChanges {
backButtonPressed()
}
return hasUnsavedChanges
}
}
// MARK: -
extension BaseGroupMemberViewController: NewGroupMembersBarDelegate {
}