475 lines
18 KiB
Swift
475 lines
18 KiB
Swift
//
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// Copyright (c) 2020 Open Whisper Systems. All rights reserved.
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//
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import Foundation
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import SafariServices
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protocol GroupMemberViewDelegate: class {
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var groupMemberViewRecipientSet: OrderedSet<PickedRecipient> { get }
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var groupMemberViewHasUnsavedChanges: Bool { get }
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func groupMemberViewRemoveRecipient(_ recipient: PickedRecipient)
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func groupMemberViewAddRecipient(_ recipient: PickedRecipient)
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func groupMemberViewCanAddRecipient(_ recipient: PickedRecipient) -> Bool
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func groupMemberViewIsGroupFull() -> Bool
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func groupMemberViewIsPreExistingMember(_ recipient: PickedRecipient) -> Bool
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func groupMemberViewDismiss()
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}
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// MARK: -
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// A base class used in two scenarios:
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//
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// * Picking members for a new group.
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// * Add new members to an existing group.
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@objc
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public class BaseGroupMemberViewController: OWSViewController {
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// MARK: - Dependencies
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private var databaseStorage: SDSDatabaseStorage {
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return SDSDatabaseStorage.shared
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}
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private class var contactsManager: OWSContactsManager {
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return Environment.shared.contactsManager
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}
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// MARK: -
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// This delegate is the subclass.
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weak var groupMemberViewDelegate: GroupMemberViewDelegate?
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private var recipientSet: OrderedSet<PickedRecipient> {
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return OrderedSet<PickedRecipient>()
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}
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return groupMemberViewDelegate.groupMemberViewRecipientSet
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}
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var hasUnsavedChanges: Bool {
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return false
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}
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return groupMemberViewDelegate.groupMemberViewHasUnsavedChanges
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}
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private let recipientPicker = RecipientPickerViewController()
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private let searchBar = OWSSearchBar()
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private let memberBar = NewGroupMembersBar()
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private let memberCountLabel = UILabel()
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private let memberCountWrapper = UIView()
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public override init() {
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super.init()
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}
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// MARK: - View Lifecycle
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@objc
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public override func viewDidLoad() {
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super.viewDidLoad()
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view.backgroundColor = Theme.backgroundColor
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// First section.
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searchBar.delegate = self
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memberBar.delegate = self
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// Don't use dynamic type in this label.
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memberCountLabel.font = UIFont.ows_dynamicTypeBody2.withSize(12)
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memberCountLabel.textColor = Theme.secondaryTextAndIconColor
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memberCountLabel.textAlignment = CurrentAppContext().isRTL ? .left : .right
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memberCountWrapper.addSubview(memberCountLabel)
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memberCountLabel.autoPinEdgesToSuperviewMargins()
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memberCountWrapper.layoutMargins = UIEdgeInsets(top: 0, leading: 12, bottom: 0, trailing: 12)
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let firstSection = UIStackView(arrangedSubviews: [searchBar, memberBar, memberCountWrapper])
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firstSection.axis = .vertical
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firstSection.alignment = .fill
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view.addSubview(firstSection)
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firstSection.autoPinWidthToSuperview()
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firstSection.autoPin(toTopLayoutGuideOf: self, withInset: 0)
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recipientPicker.allowsSelectingUnregisteredPhoneNumbers = false
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recipientPicker.shouldShowGroups = false
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recipientPicker.allowsSelectingUnregisteredPhoneNumbers = false
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recipientPicker.shouldShowSearchBar = false
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recipientPicker.delegate = self
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addChild(recipientPicker)
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view.addSubview(recipientPicker.view)
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recipientPicker.view.autoPinEdge(toSuperviewSafeArea: .leading)
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recipientPicker.view.autoPinEdge(toSuperviewSafeArea: .trailing)
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recipientPicker.view.autoPinEdge(.top, to: .bottom, of: firstSection)
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autoPinView(toBottomOfViewControllerOrKeyboard: recipientPicker.view, avoidNotch: false)
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updateMemberCount()
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}
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@objc
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public override func viewWillLayoutSubviews() {
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updateMemberBarHeightConstraint()
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super.viewWillLayoutSubviews()
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}
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private func updateMemberBarHeightConstraint() {
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memberBar.updateHeightConstraint()
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}
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private func updateMemberCount() {
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guard !recipientSet.isEmpty else {
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memberCountWrapper.isHidden = true
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return
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}
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memberCountWrapper.isHidden = false
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let format = NSLocalizedString("GROUP_MEMBER_COUNT_FORMAT",
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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. }}.")
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memberCountLabel.text = String(format: format,
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OWSFormat.formatInt(recipientSet.count),
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OWSFormat.formatUInt(GroupManager.maxGroupMemberCount))
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}
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public func removeRecipient(_ recipient: PickedRecipient) {
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return
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}
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groupMemberViewDelegate.groupMemberViewRemoveRecipient(recipient)
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recipientPicker.pickedRecipients = recipientSet.orderedMembers
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updateMemberBar()
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updateMemberCount()
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}
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public func addRecipient(_ recipient: PickedRecipient) {
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return
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}
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guard !recipientSet.contains(recipient) else {
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owsFailDebug("Recipient already added.")
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return
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}
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guard groupMemberViewDelegate.groupMemberViewCanAddRecipient(recipient) else {
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showInvalidGroupMemberAlert(recipient: recipient)
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return
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}
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guard !groupMemberViewDelegate.groupMemberViewIsGroupFull() else {
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showGroupFullAlert()
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return
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}
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groupMemberViewDelegate.groupMemberViewAddRecipient(recipient)
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recipientPicker.pickedRecipients = recipientSet.orderedMembers
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updateMemberBar()
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updateMemberCount()
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}
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private func updateMemberBar() {
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memberBar.setMembers(databaseStorage.uiRead { transaction in
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self.orderedMembers(transaction: transaction)
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})
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}
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private func orderedMembers(transaction: SDSAnyReadTransaction) -> [NewGroupMember] {
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return Self.orderedMembers(recipientSet: recipientSet, transaction: transaction)
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}
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class func orderedMembers(recipientSet: OrderedSet<PickedRecipient>,
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transaction: SDSAnyReadTransaction) -> [NewGroupMember] {
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var members = recipientSet.orderedMembers.compactMap { (recipient: PickedRecipient) -> NewGroupMember? in
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guard let address = recipient.address else {
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owsFailDebug("Invalid recipient.")
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return nil
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}
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let displayName = self.contactsManager.displayName(for: address, transaction: transaction)
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let comparableName = self.contactsManager.comparableName(for: address, transaction: transaction)
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let conversationColorName = ConversationColorName(rawValue: self.contactsManager.conversationColorName(for: address,
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transaction: transaction))
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var shortName = displayName
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if !Locale.current.isCJKV,
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let nameComponents = self.contactsManager.nameComponents(for: address, transaction: transaction),
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let givenName = nameComponents.givenName?.filterForDisplay,
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!givenName.isEmpty {
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shortName = givenName
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}
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return NewGroupMember(recipient: recipient,
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address: address,
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displayName: displayName,
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shortName: shortName,
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comparableName: comparableName,
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conversationColorName: conversationColorName)
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}
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members.sort { (left, right) in
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return left.comparableName < right.comparableName
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}
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return members
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}
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private func showInvalidGroupMemberAlert(recipient: PickedRecipient) {
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let actionSheet = ActionSheetController(title: CommonStrings.errorAlertTitle,
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message: NSLocalizedString("EDIT_GROUP_ERROR_CANNOT_ADD_MEMBER",
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comment: "Error message indicating the a user can't be added to a group."))
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actionSheet.addAction(ActionSheetAction(title: NSLocalizedString("EDIT_GROUP_ERROR_CANNOT_ADD_MEMBER_LEARN_MORE",
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comment: "Label for 'learn more' button when a user can't be added to a group."),
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style: .default) { _ in
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self.showCantAddMemberView()
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})
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actionSheet.addAction(ActionSheetAction(title: CommonStrings.okayButton,
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style: .default))
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presentActionSheet(actionSheet)
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}
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private func showGroupFullAlert() {
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OWSActionSheets.showErrorAlert(message: NSLocalizedString("EDIT_GROUP_ERROR_CANNOT_ADD_MEMBER_GROUP_FULL",
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comment: "Message for 'group full' error alert when a user can't be added to a group."))
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}
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private func showCantAddMemberView() {
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guard let url = URL(string: "https://support.signal.org/hc/articles/360007319331") else {
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owsFailDebug("Invalid url.")
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return
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}
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let vc = SFSafariViewController(url: url)
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present(vc, animated: true, completion: nil)
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}
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// MARK: -
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public override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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guard let navigationController = navigationController else {
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owsFailDebug("Missing navigationController.")
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return
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}
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if navigationController.viewControllers.count == 1 {
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navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .stop,
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target: self,
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action: #selector(dismissPressed))
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}
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}
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@objc
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func dismissPressed() {
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if !self.hasUnsavedChanges {
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// If user made no changes, dismiss.
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self.groupMemberViewDelegate?.groupMemberViewDismiss()
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return
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}
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OWSActionSheets.showPendingChangesActionSheet { [weak self] in
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self?.groupMemberViewDelegate?.groupMemberViewDismiss()
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}
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}
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// MARK: - Event Handling
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private func backButtonPressed() {
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guard let navigationController = navigationController else {
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owsFailDebug("Missing navigationController.")
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return
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}
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if !hasUnsavedChanges {
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// If user made no changes, return to previous view.
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navigationController.popViewController(animated: true)
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return
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}
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OWSActionSheets.showPendingChangesActionSheet { [weak self] in
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self?.groupMemberViewDelegate?.groupMemberViewDismiss()
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}
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}
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}
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// MARK: -
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extension BaseGroupMemberViewController: RecipientPickerDelegate {
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func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
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canSelectRecipient recipient: PickedRecipient) -> Bool {
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return false
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}
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return !groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient)
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}
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func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
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didSelectRecipient recipient: PickedRecipient) {
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guard let address = recipient.address else {
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owsFailDebug("Missing address.")
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return
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}
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guard address.isValid else {
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owsFailDebug("Invalid address.")
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return
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}
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return
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}
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guard !groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient) else {
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owsFailDebug("Can't re-add pre-existing member.")
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return
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}
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guard let navigationController = navigationController else {
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owsFailDebug("Missing navigationController.")
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return
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}
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let isCurrentMember = recipientSet.contains(recipient)
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let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
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let addRecipientCompletion = { [weak self] in
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guard let self = self else {
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return
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}
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self.addRecipient(recipient)
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navigationController.popToViewController(self, animated: true)
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}
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if isCurrentMember {
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removeRecipient(recipient)
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} else if isBlocked {
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BlockListUIUtils.showUnblockAddressActionSheet(address,
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from: self) { isStillBlocked in
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if !isStillBlocked {
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addRecipientCompletion()
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}
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}
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} else {
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let confirmationText = NSLocalizedString("SAFETY_NUMBER_CHANGED_CONFIRM_ADD_TO_GROUP_ACTION",
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comment: "button title to confirm adding a recipient to a group when their safety number has recently changed")
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let didShowSNAlert = SafetyNumberConfirmationAlert.presentAlertIfNecessary(address: address,
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confirmationText: confirmationText) { didConfirmIdentity in
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if didConfirmIdentity {
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addRecipientCompletion()
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}
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}
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if didShowSNAlert {
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return
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}
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addRecipientCompletion()
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}
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}
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func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
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accessoryMessageForRecipient recipient: PickedRecipient) -> String? {
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guard let address = recipient.address else {
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owsFailDebug("Missing address.")
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return nil
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}
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guard address.isValid else {
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owsFailDebug("Invalid address.")
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return nil
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}
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let isCurrentMember = recipientSet.contains(recipient)
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let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
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if isCurrentMember {
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return nil
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} else if isBlocked {
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return MessageStrings.conversationIsBlocked
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} else {
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return nil
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}
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}
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func recipientPicker(_ recipientPickerViewController: RecipientPickerViewController,
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accessoryViewForRecipient recipient: PickedRecipient) -> UIView? {
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guard let address = recipient.address else {
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owsFailDebug("Missing address.")
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return nil
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}
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guard address.isValid else {
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owsFailDebug("Invalid address.")
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return nil
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}
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guard let groupMemberViewDelegate = groupMemberViewDelegate else {
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owsFailDebug("Missing groupMemberViewDelegate.")
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return nil
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}
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let isCurrentMember = recipientSet.contains(recipient)
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let isBlocked = self.recipientPicker.contactsViewHelper.isSignalServiceAddressBlocked(address)
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let isPreExistingMember = groupMemberViewDelegate.groupMemberViewIsPreExistingMember(recipient)
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let imageView = UIImageView()
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if isPreExistingMember {
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imageView.setTemplateImageName("check-circle-solid-24", tintColor: Theme.washColor)
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} else if isCurrentMember {
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imageView.setTemplateImageName("check-circle-solid-24", tintColor: .ows_accentBlue)
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} else if isBlocked {
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// Use accessoryMessageForRecipient: to show blocked indicator.
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return nil
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} else {
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imageView.setTemplateImageName("empty-circle-outline-24", tintColor: .ows_gray25)
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}
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return imageView
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}
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func recipientPickerTableViewWillBeginDragging(_ recipientPickerViewController: RecipientPickerViewController) {
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_ = searchBar.resignFirstResponder()
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}
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func recipientPickerNewGroupButtonWasPressed() {}
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}
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// MARK: -
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extension BaseGroupMemberViewController: OWSNavigationView {
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public func shouldCancelNavigationBack() -> Bool {
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let hasUnsavedChanges = self.hasUnsavedChanges
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if hasUnsavedChanges {
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backButtonPressed()
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}
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return hasUnsavedChanges
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}
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}
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// MARK: -
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extension BaseGroupMemberViewController: NewGroupMembersBarDelegate {
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}
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// MARK: -
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extension BaseGroupMemberViewController: UISearchBarDelegate {
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public func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
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recipientPicker.customSearchQuery = searchText
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}
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public func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
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searchBar.setShowsCancelButton(true, animated: true)
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}
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public func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
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searchBar.setShowsCancelButton(false, animated: true)
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}
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public func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
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searchBar.text = nil
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searchBar.resignFirstResponder()
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}
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}
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