Jason A. Donenfeld
819 lines
34 KiB
Swift
819 lines
34 KiB
Swift
// SPDX-License-Identifier: MIT
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// Copyright © 2018 WireGuard LLC. All Rights Reserved.
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import UIKit
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protocol TunnelEditTableViewControllerDelegate: class {
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func tunnelSaved(tunnel: TunnelContainer)
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func tunnelEditingCancelled()
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}
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// MARK: TunnelEditTableViewController
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class TunnelEditTableViewController: UITableViewController {
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private enum Section {
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case interface
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case peer(_ peer: TunnelViewModel.PeerData)
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case addPeer
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case onDemand
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}
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weak var delegate: TunnelEditTableViewControllerDelegate?
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let interfaceFieldsBySection: [[TunnelViewModel.InterfaceField]] = [
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[.name],
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[.privateKey, .publicKey, .generateKeyPair],
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[.addresses, .listenPort, .mtu, .dns]
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]
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let peerFields: [TunnelViewModel.PeerField] = [
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.publicKey, .preSharedKey, .endpoint,
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.allowedIPs, .excludePrivateIPs, .persistentKeepAlive,
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.deletePeer
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]
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let activateOnDemandOptions: [ActivateOnDemandOption] = [
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.useOnDemandOverWiFiOrCellular,
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.useOnDemandOverWiFiOnly,
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.useOnDemandOverCellularOnly
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]
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let tunnelsManager: TunnelsManager
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let tunnel: TunnelContainer?
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let tunnelViewModel: TunnelViewModel
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var activateOnDemandSetting: ActivateOnDemandSetting
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private var sections = [Section]()
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init(tunnelsManager: TunnelsManager, tunnel: TunnelContainer) {
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// Use this initializer to edit an existing tunnel.
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self.tunnelsManager = tunnelsManager
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self.tunnel = tunnel
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tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnel.tunnelConfiguration())
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activateOnDemandSetting = tunnel.activateOnDemandSetting()
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super.init(style: .grouped)
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loadSections()
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}
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init(tunnelsManager: TunnelsManager, tunnelConfiguration: TunnelConfiguration?) {
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// Use this initializer to create a new tunnel.
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// If tunnelConfiguration is passed, data will be prepopulated from that configuration.
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self.tunnelsManager = tunnelsManager
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tunnel = nil
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tunnelViewModel = TunnelViewModel(tunnelConfiguration: tunnelConfiguration)
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activateOnDemandSetting = ActivateOnDemandSetting.defaultSetting
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super.init(style: .grouped)
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loadSections()
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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self.title = tunnel == nil ? "New configuration" : "Edit configuration"
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self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .save, target: self, action: #selector(saveTapped))
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self.navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelTapped))
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self.tableView.estimatedRowHeight = 44
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self.tableView.rowHeight = UITableView.automaticDimension
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self.tableView.register(KeyValueCell.self)
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self.tableView.register(ReadOnlyKeyValueCell.self)
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self.tableView.register(ButtonCell.self)
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self.tableView.register(SwitchCell.self)
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self.tableView.register(SelectionListCell.self)
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}
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private func loadSections() {
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sections.removeAll()
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interfaceFieldsBySection.forEach { _ in sections.append(.interface) }
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tunnelViewModel.peersData.forEach { sections.append(.peer($0)) }
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sections.append(.addPeer)
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sections.append(.onDemand)
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}
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@objc func saveTapped() {
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self.tableView.endEditing(false)
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let tunnelSaveResult = tunnelViewModel.save()
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switch tunnelSaveResult {
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case .error(let errorMessage):
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let erroringConfiguration = (tunnelViewModel.interfaceData.validatedConfiguration == nil) ? "Interface" : "Peer"
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ErrorPresenter.showErrorAlert(title: "Invalid \(erroringConfiguration)", message: errorMessage, from: self)
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self.tableView.reloadData() // Highlight erroring fields
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case .saved(let tunnelConfiguration):
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if let tunnel = tunnel {
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// We're modifying an existing tunnel
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tunnelsManager.modify(tunnel: tunnel,
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tunnelConfiguration: tunnelConfiguration,
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activateOnDemandSetting: activateOnDemandSetting) { [weak self] error in
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if let error = error {
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ErrorPresenter.showErrorAlert(error: error, from: self)
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} else {
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self?.dismiss(animated: true, completion: nil)
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self?.delegate?.tunnelSaved(tunnel: tunnel)
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}
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}
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} else {
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// We're adding a new tunnel
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tunnelsManager.add(tunnelConfiguration: tunnelConfiguration,
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activateOnDemandSetting: activateOnDemandSetting) { [weak self] result in
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if let error = result.error {
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ErrorPresenter.showErrorAlert(error: error, from: self)
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} else {
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let tunnel: TunnelContainer = result.value!
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self?.dismiss(animated: true, completion: nil)
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self?.delegate?.tunnelSaved(tunnel: tunnel)
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}
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}
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}
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}
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}
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@objc func cancelTapped() {
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dismiss(animated: true, completion: nil)
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self.delegate?.tunnelEditingCancelled()
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}
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}
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// MARK: UITableViewDataSource
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extension TunnelEditTableViewController {
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override func numberOfSections(in tableView: UITableView) -> Int {
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return sections.count
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}
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override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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switch sections[section] {
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case .interface:
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return interfaceFieldsBySection[section].count
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case .peer(let peerData):
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let peerFieldsToShow = peerData.shouldAllowExcludePrivateIPsControl ? peerFields : peerFields.filter { $0 != .excludePrivateIPs }
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return peerFieldsToShow.count
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case .addPeer:
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return 1
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case .onDemand:
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if activateOnDemandSetting.isActivateOnDemandEnabled {
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return 4
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} else {
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return 1
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}
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}
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}
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override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
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switch sections[section] {
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case .interface:
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return section == 0 ? "Interface" : nil
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case .peer:
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return "Peer"
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case .addPeer:
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return nil
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case .onDemand:
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return "On-Demand Activation"
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}
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}
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override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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switch sections[indexPath.section] {
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case .interface:
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return interfaceFieldCell(for: tableView, at: indexPath)
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case .peer(let peerData):
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return peerCell(for: tableView, at: indexPath, with: peerData)
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case .addPeer:
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return addPeerCell(for: tableView, at: indexPath)
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case .onDemand:
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return onDemandCell(for: tableView, at: indexPath)
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}
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}
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private func interfaceFieldCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
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let field = interfaceFieldsBySection[indexPath.section][indexPath.row]
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switch field {
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case .generateKeyPair:
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return generateKeyPairCell(for: tableView, at: indexPath, with: field)
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case .publicKey:
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return publicKeyCell(for: tableView, at: indexPath, with: field)
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default:
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return interfaceFieldKeyValueCell(for: tableView, at: indexPath, with: field)
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}
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}
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private func generateKeyPairCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell {
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let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
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cell.buttonText = field.rawValue
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cell.onTapped = { [weak self] in
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guard let self = self else { return }
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self.tunnelViewModel.interfaceData[.privateKey] = Curve25519.generatePrivateKey().base64EncodedString()
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if let privateKeyRow = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .privateKey),
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let publicKeyRow = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .publicKey) {
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let privateKeyIndex = IndexPath(row: privateKeyRow, section: indexPath.section)
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let publicKeyIndex = IndexPath(row: publicKeyRow, section: indexPath.section)
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self.tableView.reloadRows(at: [privateKeyIndex, publicKeyIndex], with: .fade)
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}
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}
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return cell
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}
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private func publicKeyCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell {
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let cell: ReadOnlyKeyValueCell = tableView.dequeueReusableCell(for: indexPath)
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cell.key = field.rawValue
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cell.value = tunnelViewModel.interfaceData[field]
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return cell
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}
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private func interfaceFieldKeyValueCell(for tableView: UITableView, at indexPath: IndexPath, with field: TunnelViewModel.InterfaceField) -> UITableViewCell {
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let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath)
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cell.key = field.rawValue
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switch field {
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case .name, .privateKey:
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cell.placeholderText = "Required"
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cell.keyboardType = .default
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case .addresses, .dns:
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cell.placeholderText = "Optional"
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cell.keyboardType = .numbersAndPunctuation
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case .listenPort, .mtu:
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cell.placeholderText = "Automatic"
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cell.keyboardType = .numberPad
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case .publicKey, .generateKeyPair:
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cell.keyboardType = .default
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}
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cell.isValueValid = (!tunnelViewModel.interfaceData.fieldsWithError.contains(field))
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// Bind values to view model
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cell.value = tunnelViewModel.interfaceData[field]
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if field == .dns { // While editing DNS, you might directly set exclude private IPs
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cell.onValueChanged = nil
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cell.onValueBeingEdited = { [weak self] value in
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self?.tunnelViewModel.interfaceData[field] = value
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}
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} else {
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cell.onValueChanged = { [weak self] value in
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self?.tunnelViewModel.interfaceData[field] = value
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}
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cell.onValueBeingEdited = nil
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}
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// Compute public key live
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if field == .privateKey {
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cell.onValueBeingEdited = { [weak self] value in
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guard let self = self else { return }
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self.tunnelViewModel.interfaceData[.privateKey] = value
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if let row = self.interfaceFieldsBySection[indexPath.section].firstIndex(of: .publicKey) {
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self.tableView.reloadRows(at: [IndexPath(row: row, section: indexPath.section)], with: .none)
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}
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}
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} else {
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cell.onValueBeingEdited = nil
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}
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return cell
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}
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private func peerCell(for tableView: UITableView, at indexPath: IndexPath, with peerData: TunnelViewModel.PeerData) -> UITableViewCell {
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let peerFieldsToShow = peerData.shouldAllowExcludePrivateIPsControl ? peerFields : peerFields.filter { $0 != .excludePrivateIPs }
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let field = peerFieldsToShow[indexPath.row]
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switch field {
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case .deletePeer:
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return deletePeerCell(for: tableView, at: indexPath, peerData: peerData, field: field)
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case .excludePrivateIPs:
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return excludePrivateIPsCell(for: tableView, at: indexPath, peerData: peerData, field: field)
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default:
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return peerFieldKeyValueCell(for: tableView, at: indexPath, peerData: peerData, field: field)
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}
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}
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private func deletePeerCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell {
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let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
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cell.buttonText = field.rawValue
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cell.hasDestructiveAction = true
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cell.onTapped = { [weak self, weak peerData] in
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guard let peerData = peerData else { return }
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guard let self = self else { return }
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self.showConfirmationAlert(message: "Delete this peer?", buttonTitle: "Delete", from: cell) { [weak self] in
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guard let self = self else { return }
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let removedSectionIndices = self.deletePeer(peer: peerData)
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let shouldShowExcludePrivateIPs = (self.tunnelViewModel.peersData.count == 1 && self.tunnelViewModel.peersData[0].shouldAllowExcludePrivateIPsControl)
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tableView.performBatchUpdates({
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self.tableView.deleteSections(removedSectionIndices, with: .fade)
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if shouldShowExcludePrivateIPs {
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if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) {
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let rowIndexPath = IndexPath(row: row, section: self.interfaceFieldsBySection.count /* First peer section */)
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self.tableView.insertRows(at: [rowIndexPath], with: .fade)
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}
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}
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})
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}
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}
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return cell
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}
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private func excludePrivateIPsCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell {
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let cell: SwitchCell = tableView.dequeueReusableCell(for: indexPath)
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cell.message = field.rawValue
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cell.isEnabled = peerData.shouldAllowExcludePrivateIPsControl
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cell.isOn = peerData.excludePrivateIPsValue
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cell.onSwitchToggled = { [weak self] isOn in
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guard let self = self else { return }
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peerData.excludePrivateIPsValueChanged(isOn: isOn, dnsServers: self.tunnelViewModel.interfaceData[.dns])
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if let row = self.peerFields.firstIndex(of: .allowedIPs) {
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self.tableView.reloadRows(at: [IndexPath(row: row, section: indexPath.section)], with: .none)
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}
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}
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return cell
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}
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private func peerFieldKeyValueCell(for tableView: UITableView, at indexPath: IndexPath, peerData: TunnelViewModel.PeerData, field: TunnelViewModel.PeerField) -> UITableViewCell {
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let cell: KeyValueCell = tableView.dequeueReusableCell(for: indexPath)
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cell.key = field.rawValue
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switch field {
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case .publicKey:
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cell.placeholderText = "Required"
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cell.keyboardType = .default
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case .preSharedKey, .endpoint:
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cell.placeholderText = "Optional"
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cell.keyboardType = .default
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case .allowedIPs:
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cell.placeholderText = "Optional"
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cell.keyboardType = .numbersAndPunctuation
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case .persistentKeepAlive:
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cell.placeholderText = "Off"
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cell.keyboardType = .numberPad
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case .excludePrivateIPs, .deletePeer:
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cell.keyboardType = .default
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}
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cell.isValueValid = !peerData.fieldsWithError.contains(field)
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cell.value = peerData[field]
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if field == .allowedIPs {
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cell.onValueBeingEdited = { [weak self, weak peerData] value in
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guard let self = self, let peerData = peerData else { return }
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let oldValue = peerData.shouldAllowExcludePrivateIPsControl
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peerData[.allowedIPs] = value
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if oldValue != peerData.shouldAllowExcludePrivateIPsControl {
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if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) {
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if peerData.shouldAllowExcludePrivateIPsControl {
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self.tableView.insertRows(at: [IndexPath(row: row, section: indexPath.section)], with: .fade)
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} else {
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self.tableView.deleteRows(at: [IndexPath(row: row, section: indexPath.section)], with: .fade)
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}
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}
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}
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}
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} else {
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cell.onValueChanged = { [weak peerData] value in
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peerData?[field] = value
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}
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}
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return cell
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}
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private func addPeerCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
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let cell: ButtonCell = tableView.dequeueReusableCell(for: indexPath)
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cell.buttonText = "Add peer"
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cell.onTapped = { [weak self] in
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guard let self = self else { return }
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let shouldHideExcludePrivateIPs = (self.tunnelViewModel.peersData.count == 1 && self.tunnelViewModel.peersData[0].shouldAllowExcludePrivateIPsControl)
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let addedSectionIndices = self.appendEmptyPeer()
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tableView.performBatchUpdates({
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tableView.insertSections(addedSectionIndices, with: .fade)
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if shouldHideExcludePrivateIPs {
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if let row = self.peerFields.firstIndex(of: .excludePrivateIPs) {
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let rowIndexPath = IndexPath(row: row, section: self.interfaceFieldsBySection.count /* First peer section */)
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self.tableView.deleteRows(at: [rowIndexPath], with: .fade)
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}
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}
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}, completion: nil)
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}
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return cell
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}
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private func onDemandCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
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if indexPath.row == 0 {
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let cell: SwitchCell = tableView.dequeueReusableCell(for: indexPath)
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cell.message = "Activate on demand"
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cell.isOn = activateOnDemandSetting.isActivateOnDemandEnabled
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cell.onSwitchToggled = { [weak self] isOn in
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guard let self = self else { return }
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let indexPaths = (1 ..< 4).map { IndexPath(row: $0, section: indexPath.section) }
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if isOn {
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self.activateOnDemandSetting.isActivateOnDemandEnabled = true
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if self.activateOnDemandSetting.activateOnDemandOption == .none {
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self.activateOnDemandSetting.activateOnDemandOption = TunnelViewModel.defaultActivateOnDemandOption()
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}
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self.loadSections()
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self.tableView.insertRows(at: indexPaths, with: .fade)
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} else {
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self.activateOnDemandSetting.isActivateOnDemandEnabled = false
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self.loadSections()
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self.tableView.deleteRows(at: indexPaths, with: .fade)
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}
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}
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return cell
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} else {
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let cell: SelectionListCell = tableView.dequeueReusableCell(for: indexPath)
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let rowOption = activateOnDemandOptions[indexPath.row - 1]
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let selectedOption = activateOnDemandSetting.activateOnDemandOption
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assert(selectedOption != .none)
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cell.message = TunnelViewModel.activateOnDemandOptionText(for: rowOption)
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cell.isChecked = (selectedOption == rowOption)
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return cell
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}
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}
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func appendEmptyPeer() -> IndexSet {
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tunnelViewModel.appendEmptyPeer()
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loadSections()
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let addedPeerIndex = tunnelViewModel.peersData.count - 1
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return IndexSet(integer: interfaceFieldsBySection.count + addedPeerIndex)
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}
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func deletePeer(peer: TunnelViewModel.PeerData) -> IndexSet {
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tunnelViewModel.deletePeer(peer: peer)
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loadSections()
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return IndexSet(integer: interfaceFieldsBySection.count + peer.index)
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}
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func showConfirmationAlert(message: String, buttonTitle: String, from sourceView: UIView, onConfirmed: @escaping (() -> Void)) {
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let destroyAction = UIAlertAction(title: buttonTitle, style: .destructive) { _ in
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onConfirmed()
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}
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let cancelAction = UIAlertAction(title: "Cancel", style: .cancel)
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let alert = UIAlertController(title: "", message: message, preferredStyle: .actionSheet)
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alert.addAction(destroyAction)
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alert.addAction(cancelAction)
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// popoverPresentationController will be nil on iPhone and non-nil on iPad
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alert.popoverPresentationController?.sourceView = sourceView
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alert.popoverPresentationController?.sourceRect = sourceView.bounds
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self.present(alert, animated: true, completion: nil)
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}
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}
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// MARK: UITableViewDelegate
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extension TunnelEditTableViewController {
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override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
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if case .onDemand = sections[indexPath.section], indexPath.row > 0 {
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|
return indexPath
|
|
} else {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
|
|
switch sections[indexPath.section] {
|
|
case .onDemand:
|
|
let option = activateOnDemandOptions[indexPath.row - 1]
|
|
assert(option != .none)
|
|
activateOnDemandSetting.activateOnDemandOption = option
|
|
|
|
let indexPaths = (1 ..< 4).map { IndexPath(row: $0, section: indexPath.section) }
|
|
UIView.performWithoutAnimation {
|
|
tableView.reloadRows(at: indexPaths, with: .none)
|
|
}
|
|
default:
|
|
assertionFailure()
|
|
}
|
|
}
|
|
}
|
|
|
|
private class KeyValueCell: UITableViewCell {
|
|
var key: String {
|
|
get { return keyLabel.text ?? "" }
|
|
set(value) {keyLabel.text = value }
|
|
}
|
|
var value: String {
|
|
get { return valueTextField.text ?? "" }
|
|
set(value) { valueTextField.text = value }
|
|
}
|
|
var placeholderText: String {
|
|
get { return valueTextField.placeholder ?? "" }
|
|
set(value) { valueTextField.placeholder = value }
|
|
}
|
|
var isValueValid: Bool = true {
|
|
didSet {
|
|
if isValueValid {
|
|
keyLabel.textColor = UIColor.black
|
|
} else {
|
|
keyLabel.textColor = UIColor.red
|
|
}
|
|
}
|
|
}
|
|
var keyboardType: UIKeyboardType {
|
|
get { return valueTextField.keyboardType }
|
|
set(value) { valueTextField.keyboardType = value }
|
|
}
|
|
|
|
var onValueChanged: ((String) -> Void)?
|
|
var onValueBeingEdited: ((String) -> Void)?
|
|
|
|
let keyLabel: UILabel
|
|
let valueTextField: UITextField
|
|
|
|
var isStackedHorizontally: Bool = false
|
|
var isStackedVertically: Bool = false
|
|
var contentSizeBasedConstraints = [NSLayoutConstraint]()
|
|
|
|
private var textFieldValueOnBeginEditing: String = ""
|
|
|
|
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
|
|
keyLabel = UILabel()
|
|
keyLabel.font = UIFont.preferredFont(forTextStyle: .body)
|
|
keyLabel.adjustsFontForContentSizeCategory = true
|
|
valueTextField = UITextField()
|
|
valueTextField.font = UIFont.preferredFont(forTextStyle: .body)
|
|
valueTextField.adjustsFontForContentSizeCategory = true
|
|
super.init(style: style, reuseIdentifier: reuseIdentifier)
|
|
contentView.addSubview(keyLabel)
|
|
keyLabel.translatesAutoresizingMaskIntoConstraints = false
|
|
keyLabel.textAlignment = .right
|
|
let widthRatioConstraint = NSLayoutConstraint(item: keyLabel, attribute: .width,
|
|
relatedBy: .equal,
|
|
toItem: self, attribute: .width,
|
|
multiplier: 0.4, constant: 0)
|
|
// The "Persistent Keepalive" key doesn't fit into 0.4 * width on the iPhone SE,
|
|
// so set a CR priority > the 0.4-constraint's priority.
|
|
widthRatioConstraint.priority = .defaultHigh + 1
|
|
keyLabel.setContentCompressionResistancePriority(.defaultHigh + 2, for: .horizontal)
|
|
NSLayoutConstraint.activate([
|
|
keyLabel.leftAnchor.constraint(equalTo: contentView.layoutMarginsGuide.leftAnchor),
|
|
keyLabel.topAnchor.constraint(equalToSystemSpacingBelow: contentView.layoutMarginsGuide.topAnchor, multiplier: 0.5),
|
|
widthRatioConstraint
|
|
])
|
|
contentView.addSubview(valueTextField)
|
|
valueTextField.translatesAutoresizingMaskIntoConstraints = false
|
|
NSLayoutConstraint.activate([
|
|
valueTextField.rightAnchor.constraint(equalTo: contentView.layoutMarginsGuide.rightAnchor),
|
|
contentView.layoutMarginsGuide.bottomAnchor.constraint(equalToSystemSpacingBelow: valueTextField.bottomAnchor, multiplier: 0.5)
|
|
])
|
|
valueTextField.delegate = self
|
|
|
|
valueTextField.autocapitalizationType = .none
|
|
valueTextField.autocorrectionType = .no
|
|
valueTextField.spellCheckingType = .no
|
|
|
|
configureForContentSize()
|
|
}
|
|
|
|
func configureForContentSize() {
|
|
var constraints = [NSLayoutConstraint]()
|
|
if self.traitCollection.preferredContentSizeCategory.isAccessibilityCategory {
|
|
// Stack vertically
|
|
if !isStackedVertically {
|
|
constraints = [
|
|
valueTextField.topAnchor.constraint(equalToSystemSpacingBelow: keyLabel.bottomAnchor, multiplier: 0.5),
|
|
valueTextField.leftAnchor.constraint(equalTo: contentView.layoutMarginsGuide.leftAnchor),
|
|
keyLabel.rightAnchor.constraint(equalTo: contentView.layoutMarginsGuide.rightAnchor)
|
|
]
|
|
isStackedVertically = true
|
|
isStackedHorizontally = false
|
|
}
|
|
} else {
|
|
// Stack horizontally
|
|
if !isStackedHorizontally {
|
|
constraints = [
|
|
contentView.layoutMarginsGuide.bottomAnchor.constraint(equalToSystemSpacingBelow: keyLabel.bottomAnchor, multiplier: 0.5),
|
|
valueTextField.leftAnchor.constraint(equalToSystemSpacingAfter: keyLabel.rightAnchor, multiplier: 1),
|
|
valueTextField.topAnchor.constraint(equalToSystemSpacingBelow: contentView.layoutMarginsGuide.topAnchor, multiplier: 0.5)
|
|
]
|
|
isStackedHorizontally = true
|
|
isStackedVertically = false
|
|
}
|
|
}
|
|
if !constraints.isEmpty {
|
|
NSLayoutConstraint.deactivate(self.contentSizeBasedConstraints)
|
|
NSLayoutConstraint.activate(constraints)
|
|
self.contentSizeBasedConstraints = constraints
|
|
}
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func prepareForReuse() {
|
|
super.prepareForReuse()
|
|
key = ""
|
|
value = ""
|
|
placeholderText = ""
|
|
isValueValid = true
|
|
keyboardType = .default
|
|
onValueChanged = nil
|
|
onValueBeingEdited = nil
|
|
configureForContentSize()
|
|
}
|
|
}
|
|
|
|
extension KeyValueCell: UITextFieldDelegate {
|
|
func textFieldDidBeginEditing(_ textField: UITextField) {
|
|
textFieldValueOnBeginEditing = textField.text ?? ""
|
|
isValueValid = true
|
|
}
|
|
func textFieldDidEndEditing(_ textField: UITextField) {
|
|
let isModified = (textField.text ?? "" != textFieldValueOnBeginEditing)
|
|
guard isModified else { return }
|
|
if let onValueChanged = onValueChanged {
|
|
onValueChanged(textField.text ?? "")
|
|
}
|
|
}
|
|
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
|
|
if let onValueBeingEdited = onValueBeingEdited {
|
|
let modifiedText = ((textField.text ?? "") as NSString).replacingCharacters(in: range, with: string)
|
|
onValueBeingEdited(modifiedText)
|
|
}
|
|
return true
|
|
}
|
|
}
|
|
|
|
private class ReadOnlyKeyValueCell: CopyableLabelTableViewCell {
|
|
var key: String {
|
|
get { return keyLabel.text ?? "" }
|
|
set(value) {keyLabel.text = value }
|
|
}
|
|
var value: String {
|
|
get { return valueLabel.text }
|
|
set(value) { valueLabel.text = value }
|
|
}
|
|
|
|
let keyLabel: UILabel
|
|
let valueLabel: ScrollableLabel
|
|
|
|
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
|
|
keyLabel = UILabel()
|
|
keyLabel.font = UIFont.preferredFont(forTextStyle: .body)
|
|
keyLabel.adjustsFontForContentSizeCategory = true
|
|
valueLabel = ScrollableLabel()
|
|
valueLabel.label.font = UIFont.preferredFont(forTextStyle: .body)
|
|
valueLabel.label.adjustsFontForContentSizeCategory = true
|
|
|
|
super.init(style: style, reuseIdentifier: reuseIdentifier)
|
|
|
|
keyLabel.textColor = UIColor.gray
|
|
valueLabel.textColor = UIColor.gray
|
|
|
|
contentView.addSubview(keyLabel)
|
|
keyLabel.translatesAutoresizingMaskIntoConstraints = false
|
|
keyLabel.textAlignment = .right
|
|
let widthRatioConstraint = NSLayoutConstraint(item: keyLabel, attribute: .width,
|
|
relatedBy: .equal,
|
|
toItem: self, attribute: .width,
|
|
multiplier: 0.4, constant: 0)
|
|
// In case the key doesn't fit into 0.4 * width,
|
|
// so set a CR priority > the 0.4-constraint's priority.
|
|
widthRatioConstraint.priority = .defaultHigh + 1
|
|
keyLabel.setContentCompressionResistancePriority(.defaultHigh + 2, for: .horizontal)
|
|
NSLayoutConstraint.activate([
|
|
keyLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
|
|
keyLabel.leftAnchor.constraint(equalTo: contentView.layoutMarginsGuide.leftAnchor),
|
|
widthRatioConstraint
|
|
])
|
|
|
|
contentView.addSubview(valueLabel)
|
|
valueLabel.translatesAutoresizingMaskIntoConstraints = false
|
|
NSLayoutConstraint.activate([
|
|
valueLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
|
|
valueLabel.leftAnchor.constraint(equalToSystemSpacingAfter: keyLabel.rightAnchor, multiplier: 1),
|
|
valueLabel.rightAnchor.constraint(equalTo: contentView.layoutMarginsGuide.rightAnchor)
|
|
])
|
|
}
|
|
|
|
override var textToCopy: String? {
|
|
return self.valueLabel.text
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func prepareForReuse() {
|
|
super.prepareForReuse()
|
|
key = ""
|
|
value = ""
|
|
}
|
|
}
|
|
|
|
private class ButtonCell: UITableViewCell {
|
|
var buttonText: String {
|
|
get { return button.title(for: .normal) ?? "" }
|
|
set(value) { button.setTitle(value, for: .normal) }
|
|
}
|
|
var hasDestructiveAction: Bool {
|
|
get { return button.tintColor == UIColor.red }
|
|
set(value) { button.tintColor = value ? UIColor.red : buttonStandardTintColor }
|
|
}
|
|
var onTapped: (() -> Void)?
|
|
|
|
let button: UIButton
|
|
var buttonStandardTintColor: UIColor
|
|
|
|
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
|
|
button = UIButton(type: .system)
|
|
button.titleLabel?.font = UIFont.preferredFont(forTextStyle: .body)
|
|
button.titleLabel?.adjustsFontForContentSizeCategory = true
|
|
buttonStandardTintColor = button.tintColor
|
|
super.init(style: style, reuseIdentifier: reuseIdentifier)
|
|
contentView.addSubview(button)
|
|
button.translatesAutoresizingMaskIntoConstraints = false
|
|
NSLayoutConstraint.activate([
|
|
button.topAnchor.constraint(equalTo: contentView.layoutMarginsGuide.topAnchor),
|
|
contentView.layoutMarginsGuide.bottomAnchor.constraint(equalTo: button.bottomAnchor),
|
|
button.centerXAnchor.constraint(equalTo: contentView.centerXAnchor)
|
|
])
|
|
button.addTarget(self, action: #selector(buttonTapped), for: .touchUpInside)
|
|
}
|
|
|
|
@objc func buttonTapped() {
|
|
onTapped?()
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func prepareForReuse() {
|
|
super.prepareForReuse()
|
|
buttonText = ""
|
|
onTapped = nil
|
|
hasDestructiveAction = false
|
|
}
|
|
}
|
|
|
|
private class SwitchCell: UITableViewCell {
|
|
var message: String {
|
|
get { return textLabel?.text ?? "" }
|
|
set(value) { textLabel!.text = value }
|
|
}
|
|
var isOn: Bool {
|
|
get { return switchView.isOn }
|
|
set(value) { switchView.isOn = value }
|
|
}
|
|
var isEnabled: Bool {
|
|
get { return switchView.isEnabled }
|
|
set(value) {
|
|
switchView.isEnabled = value
|
|
textLabel?.textColor = value ? UIColor.black : UIColor.gray
|
|
}
|
|
}
|
|
|
|
var onSwitchToggled: ((Bool) -> Void)?
|
|
|
|
let switchView: UISwitch
|
|
|
|
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
|
|
switchView = UISwitch()
|
|
super.init(style: .default, reuseIdentifier: reuseIdentifier)
|
|
accessoryView = switchView
|
|
switchView.addTarget(self, action: #selector(switchToggled), for: .valueChanged)
|
|
}
|
|
|
|
@objc func switchToggled() {
|
|
onSwitchToggled?(switchView.isOn)
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func prepareForReuse() {
|
|
super.prepareForReuse()
|
|
message = ""
|
|
isOn = false
|
|
}
|
|
}
|
|
|
|
private class SelectionListCell: UITableViewCell {
|
|
var message: String {
|
|
get { return textLabel?.text ?? "" }
|
|
set(value) { textLabel!.text = value }
|
|
}
|
|
var isChecked: Bool {
|
|
didSet {
|
|
accessoryType = isChecked ? .checkmark : .none
|
|
}
|
|
}
|
|
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
|
|
isChecked = false
|
|
super.init(style: .default, reuseIdentifier: reuseIdentifier)
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder) {
|
|
fatalError("init(coder:) has not been implemented")
|
|
}
|
|
|
|
override func prepareForReuse() {
|
|
super.prepareForReuse()
|
|
message = ""
|
|
isChecked = false
|
|
}
|
|
}
|