80 lines
3.1 KiB
Swift
80 lines
3.1 KiB
Swift
|
|
@objc(SNUserSelectionVC)
|
|
final class UserSelectionVC : BaseVC, UITableViewDataSource, UITableViewDelegate {
|
|
private let navBarTitle: String
|
|
private let usersToExclude: Set<String>
|
|
private let completion: (Set<String>) -> Void
|
|
private var selectedUsers: Set<String> = []
|
|
|
|
private lazy var users: [String] = {
|
|
var result = ContactUtilities.getAllContacts()
|
|
result.removeAll { usersToExclude.contains($0) }
|
|
return result
|
|
}()
|
|
|
|
// MARK: Components
|
|
@objc private lazy var tableView: UITableView = {
|
|
let result = UITableView()
|
|
result.dataSource = self
|
|
result.delegate = self
|
|
result.register(UserCell.self, forCellReuseIdentifier: "UserCell")
|
|
result.separatorStyle = .none
|
|
result.backgroundColor = .clear
|
|
result.showsVerticalScrollIndicator = false
|
|
result.alwaysBounceVertical = false
|
|
return result
|
|
}()
|
|
|
|
// MARK: Lifecycle
|
|
@objc(initWithTitle:excluding:completion:)
|
|
init(with title: String, excluding usersToExclude: Set<String>, completion: @escaping (Set<String>) -> Void) {
|
|
self.navBarTitle = title
|
|
self.usersToExclude = usersToExclude
|
|
self.completion = completion
|
|
super.init(nibName: nil, bundle: nil)
|
|
}
|
|
|
|
required init?(coder: NSCoder) { preconditionFailure("Use UserSelectionVC.init(excluding:) instead.") }
|
|
override init(nibName: String?, bundle: Bundle?) { preconditionFailure("Use UserSelectionVC.init(excluding:) instead.") }
|
|
|
|
override func viewDidLoad() {
|
|
super.viewDidLoad()
|
|
setUpGradientBackground()
|
|
setUpNavBarStyle()
|
|
setNavBarTitle(navBarTitle)
|
|
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(handleDoneButtonTapped))
|
|
view.addSubview(tableView)
|
|
tableView.pin(to: view)
|
|
}
|
|
|
|
// MARK: Data
|
|
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
|
|
return users.count
|
|
}
|
|
|
|
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
|
|
let cell = tableView.dequeueReusableCell(withIdentifier: "UserCell") as! UserCell
|
|
let publicKey = users[indexPath.row]
|
|
cell.publicKey = publicKey
|
|
let isSelected = selectedUsers.contains(publicKey)
|
|
cell.accessory = .tick(isSelected: isSelected)
|
|
cell.update()
|
|
return cell
|
|
}
|
|
|
|
// MARK: Interaction
|
|
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
|
|
let publicKey = users[indexPath.row]
|
|
if !selectedUsers.contains(publicKey) { selectedUsers.insert(publicKey) } else { selectedUsers.remove(publicKey) }
|
|
guard let cell = tableView.cellForRow(at: indexPath) as? UserCell else { return }
|
|
let isSelected = selectedUsers.contains(publicKey)
|
|
cell.accessory = .tick(isSelected: isSelected)
|
|
cell.update()
|
|
}
|
|
|
|
@objc private func handleDoneButtonTapped() {
|
|
completion(selectedUsers)
|
|
navigationController!.popViewController(animated: true)
|
|
}
|
|
}
|