wireguard-apple/Sources/WireGuardApp/UI/iOS/ViewController/TunnelsListTableViewControl...

429 lines
18 KiB
Swift

// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import UIKit
import MobileCoreServices
import UserNotifications
class TunnelsListTableViewController: UIViewController {
var tunnelsManager: TunnelsManager?
enum TableState: Equatable {
case normal
case rowSwiped
case multiSelect(selectionCount: Int)
}
let tableView: UITableView = {
let tableView = UITableView(frame: CGRect.zero, style: .plain)
tableView.estimatedRowHeight = 60
tableView.rowHeight = UITableView.automaticDimension
tableView.separatorStyle = .none
tableView.register(TunnelListCell.self)
return tableView
}()
let centeredAddButton: BorderedTextButton = {
let button = BorderedTextButton()
button.title = tr("tunnelsListCenteredAddTunnelButtonTitle")
button.isHidden = true
return button
}()
let busyIndicator: UIActivityIndicatorView = {
if #available(iOS 13.0, *) {
let busyIndicator = UIActivityIndicatorView(style: .medium)
busyIndicator.hidesWhenStopped = true
return busyIndicator
} else {
let busyIndicator = UIActivityIndicatorView(style: .gray)
busyIndicator.hidesWhenStopped = true
return busyIndicator
}
}()
var detailDisplayedTunnel: TunnelContainer?
var tableState: TableState = .normal {
didSet {
handleTableStateChange()
}
}
override func loadView() {
view = UIView()
if #available(iOS 13.0, *) {
view.backgroundColor = .systemBackground
} else {
view.backgroundColor = .white
}
tableView.dataSource = self
tableView.delegate = self
view.addSubview(tableView)
tableView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
tableView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
tableView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
tableView.topAnchor.constraint(equalTo: view.topAnchor),
tableView.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])
view.addSubview(busyIndicator)
busyIndicator.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
busyIndicator.centerXAnchor.constraint(equalTo: view.centerXAnchor),
busyIndicator.centerYAnchor.constraint(equalTo: view.centerYAnchor)
])
view.addSubview(centeredAddButton)
centeredAddButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
centeredAddButton.centerXAnchor.constraint(equalTo: view.centerXAnchor),
centeredAddButton.centerYAnchor.constraint(equalTo: view.centerYAnchor)
])
centeredAddButton.onTapped = { [weak self] in
guard let self = self else { return }
self.addButtonTapped(sender: self.centeredAddButton)
}
busyIndicator.startAnimating()
}
override func viewDidLoad() {
super.viewDidLoad()
tableState = .normal
restorationIdentifier = "TunnelsListVC"
}
func handleTableStateChange() {
switch tableState {
case .normal:
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addButtonTapped(sender:)))
navigationItem.leftBarButtonItem = UIBarButtonItem(title: tr("tunnelsListSettingsButtonTitle"), style: .plain, target: self, action: #selector(settingsButtonTapped(sender:)))
case .rowSwiped:
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneButtonTapped))
navigationItem.leftBarButtonItem = UIBarButtonItem(title: tr("tunnelsListSelectButtonTitle"), style: .plain, target: self, action: #selector(selectButtonTapped))
case .multiSelect(let selectionCount):
if selectionCount > 0 {
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelButtonTapped))
navigationItem.leftBarButtonItem = UIBarButtonItem(title: tr("tunnelsListDeleteButtonTitle"), style: .plain, target: self, action: #selector(deleteButtonTapped(sender:)))
} else {
navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelButtonTapped))
navigationItem.leftBarButtonItem = UIBarButtonItem(title: tr("tunnelsListSelectAllButtonTitle"), style: .plain, target: self, action: #selector(selectAllButtonTapped))
}
}
if case .multiSelect(let selectionCount) = tableState, selectionCount > 0 {
navigationItem.title = tr(format: "tunnelsListSelectedTitle (%d)", selectionCount)
} else {
navigationItem.title = tr("tunnelsListTitle")
}
if case .multiSelect = tableState {
tableView.allowsMultipleSelectionDuringEditing = true
} else {
tableView.allowsMultipleSelectionDuringEditing = false
}
}
func setTunnelsManager(tunnelsManager: TunnelsManager) {
self.tunnelsManager = tunnelsManager
tunnelsManager.tunnelsListDelegate = self
busyIndicator.stopAnimating()
tableView.reloadData()
centeredAddButton.isHidden = tunnelsManager.numberOfTunnels() > 0
}
override func viewWillAppear(_: Bool) {
if let selectedRowIndexPath = tableView.indexPathForSelectedRow {
tableView.deselectRow(at: selectedRowIndexPath, animated: false)
}
}
@objc func addButtonTapped(sender: AnyObject) {
guard tunnelsManager != nil else { return }
let alert = UIAlertController(title: "", message: tr("addTunnelMenuHeader"), preferredStyle: .actionSheet)
let importFileAction = UIAlertAction(title: tr("addTunnelMenuImportFile"), style: .default) { [weak self] _ in
self?.presentViewControllerForFileImport()
}
alert.addAction(importFileAction)
let scanQRCodeAction = UIAlertAction(title: tr("addTunnelMenuQRCode"), style: .default) { [weak self] _ in
self?.presentViewControllerForScanningQRCode()
}
alert.addAction(scanQRCodeAction)
let createFromScratchAction = UIAlertAction(title: tr("addTunnelMenuFromScratch"), style: .default) { [weak self] _ in
if let self = self, let tunnelsManager = self.tunnelsManager {
self.presentViewControllerForTunnelCreation(tunnelsManager: tunnelsManager)
}
}
alert.addAction(createFromScratchAction)
let cancelAction = UIAlertAction(title: tr("actionCancel"), style: .cancel)
alert.addAction(cancelAction)
if let sender = sender as? UIBarButtonItem {
alert.popoverPresentationController?.barButtonItem = sender
} else if let sender = sender as? UIView {
alert.popoverPresentationController?.sourceView = sender
alert.popoverPresentationController?.sourceRect = sender.bounds
}
present(alert, animated: true, completion: nil)
}
@objc func settingsButtonTapped(sender: UIBarButtonItem) {
guard tunnelsManager != nil else { return }
let settingsVC = SettingsTableViewController(tunnelsManager: tunnelsManager)
let settingsNC = UINavigationController(rootViewController: settingsVC)
settingsNC.modalPresentationStyle = .formSheet
present(settingsNC, animated: true)
}
func presentViewControllerForTunnelCreation(tunnelsManager: TunnelsManager) {
let editVC = TunnelEditTableViewController(tunnelsManager: tunnelsManager)
let editNC = UINavigationController(rootViewController: editVC)
editNC.modalPresentationStyle = .fullScreen
present(editNC, animated: true)
}
func presentViewControllerForFileImport() {
let documentTypes = ["com.wireguard.config.quick", String(kUTTypeText), String(kUTTypeZipArchive)]
let filePicker = UIDocumentPickerViewController(documentTypes: documentTypes, in: .import)
filePicker.delegate = self
present(filePicker, animated: true)
}
func presentViewControllerForScanningQRCode() {
let scanQRCodeVC = QRScanViewController()
scanQRCodeVC.delegate = self
let scanQRCodeNC = UINavigationController(rootViewController: scanQRCodeVC)
scanQRCodeNC.modalPresentationStyle = .fullScreen
present(scanQRCodeNC, animated: true)
}
@objc func selectButtonTapped() {
let shouldCancelSwipe = tableState == .rowSwiped
tableState = .multiSelect(selectionCount: 0)
if shouldCancelSwipe {
tableView.setEditing(false, animated: false)
}
tableView.setEditing(true, animated: true)
}
@objc func doneButtonTapped() {
tableState = .normal
tableView.setEditing(false, animated: true)
}
@objc func selectAllButtonTapped() {
guard tableView.isEditing else { return }
guard let tunnelsManager = tunnelsManager else { return }
for index in 0 ..< tunnelsManager.numberOfTunnels() {
tableView.selectRow(at: IndexPath(row: index, section: 0), animated: false, scrollPosition: .none)
}
tableState = .multiSelect(selectionCount: tableView.indexPathsForSelectedRows?.count ?? 0)
}
@objc func cancelButtonTapped() {
tableState = .normal
tableView.setEditing(false, animated: true)
}
@objc func deleteButtonTapped(sender: AnyObject?) {
guard let sender = sender as? UIBarButtonItem else { return }
guard let tunnelsManager = tunnelsManager else { return }
let selectedTunnelIndices = tableView.indexPathsForSelectedRows?.map { $0.row } ?? []
let selectedTunnels = selectedTunnelIndices.compactMap { tunnelIndex in
tunnelIndex >= 0 && tunnelIndex < tunnelsManager.numberOfTunnels() ? tunnelsManager.tunnel(at: tunnelIndex) : nil
}
guard !selectedTunnels.isEmpty else { return }
let message = selectedTunnels.count == 1 ?
tr(format: "deleteTunnelConfirmationAlertButtonMessage (%d)", selectedTunnels.count) :
tr(format: "deleteTunnelsConfirmationAlertButtonMessage (%d)", selectedTunnels.count)
let title = tr("deleteTunnelsConfirmationAlertButtonTitle")
ConfirmationAlertPresenter.showConfirmationAlert(message: message, buttonTitle: title,
from: sender, presentingVC: self) { [weak self] in
self?.tunnelsManager?.removeMultiple(tunnels: selectedTunnels) { [weak self] error in
guard let self = self else { return }
if let error = error {
ErrorPresenter.showErrorAlert(error: error, from: self)
return
}
self.tableState = .normal
self.tableView.setEditing(false, animated: true)
}
}
}
func showTunnelDetail(for tunnel: TunnelContainer, animated: Bool) {
guard let tunnelsManager = tunnelsManager else { return }
guard let splitViewController = splitViewController else { return }
guard let navController = navigationController else { return }
let tunnelDetailVC = TunnelDetailTableViewController(tunnelsManager: tunnelsManager,
tunnel: tunnel)
let tunnelDetailNC = UINavigationController(rootViewController: tunnelDetailVC)
tunnelDetailNC.restorationIdentifier = "DetailNC"
if splitViewController.isCollapsed && navController.viewControllers.count > 1 {
navController.setViewControllers([self, tunnelDetailNC], animated: animated)
} else {
splitViewController.showDetailViewController(tunnelDetailNC, sender: self, animated: animated)
}
detailDisplayedTunnel = tunnel
self.presentedViewController?.dismiss(animated: false, completion: nil)
}
}
extension TunnelsListTableViewController: UIDocumentPickerDelegate {
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
guard let tunnelsManager = tunnelsManager else { return }
TunnelImporter.importFromFile(urls: urls, into: tunnelsManager, sourceVC: self, errorPresenterType: ErrorPresenter.self)
}
}
extension TunnelsListTableViewController: QRScanViewControllerDelegate {
func addScannedQRCode(tunnelConfiguration: TunnelConfiguration, qrScanViewController: QRScanViewController,
completionHandler: (() -> Void)?) {
tunnelsManager?.add(tunnelConfiguration: tunnelConfiguration) { result in
switch result {
case .failure(let error):
ErrorPresenter.showErrorAlert(error: error, from: qrScanViewController, onDismissal: completionHandler)
case .success:
completionHandler?()
}
}
}
}
extension TunnelsListTableViewController: UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return (tunnelsManager?.numberOfTunnels() ?? 0)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: TunnelListCell = tableView.dequeueReusableCell(for: indexPath)
if let tunnelsManager = tunnelsManager {
let tunnel = tunnelsManager.tunnel(at: indexPath.row)
cell.tunnel = tunnel
cell.onSwitchToggled = { [weak self] isOn in
guard let self = self, let tunnelsManager = self.tunnelsManager else { return }
if isOn {
tunnelsManager.startActivation(of: tunnel)
} else {
tunnelsManager.startDeactivation(of: tunnel)
}
}
}
return cell
}
}
extension TunnelsListTableViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
guard !tableView.isEditing else {
tableState = .multiSelect(selectionCount: tableView.indexPathsForSelectedRows?.count ?? 0)
return
}
guard let tunnelsManager = tunnelsManager else { return }
let tunnel = tunnelsManager.tunnel(at: indexPath.row)
showTunnelDetail(for: tunnel, animated: true)
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
guard !tableView.isEditing else {
tableState = .multiSelect(selectionCount: tableView.indexPathsForSelectedRows?.count ?? 0)
return
}
}
func tableView(_ tableView: UITableView,
trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
let deleteAction = UIContextualAction(style: .destructive, title: tr("tunnelsListSwipeDeleteButtonTitle")) { [weak self] _, _, completionHandler in
guard let tunnelsManager = self?.tunnelsManager else { return }
let tunnel = tunnelsManager.tunnel(at: indexPath.row)
tunnelsManager.remove(tunnel: tunnel) { error in
if error != nil {
ErrorPresenter.showErrorAlert(error: error!, from: self)
completionHandler(false)
} else {
completionHandler(true)
}
}
}
return UISwipeActionsConfiguration(actions: [deleteAction])
}
func tableView(_ tableView: UITableView, willBeginEditingRowAt indexPath: IndexPath) {
if tableState == .normal {
tableState = .rowSwiped
}
}
func tableView(_ tableView: UITableView, didEndEditingRowAt indexPath: IndexPath?) {
if tableState == .rowSwiped {
tableState = .normal
}
}
}
extension TunnelsListTableViewController: TunnelsManagerListDelegate {
func tunnelAdded(at index: Int) {
tableView.insertRows(at: [IndexPath(row: index, section: 0)], with: .automatic)
centeredAddButton.isHidden = (tunnelsManager?.numberOfTunnels() ?? 0 > 0)
}
func tunnelModified(at index: Int) {
tableView.reloadRows(at: [IndexPath(row: index, section: 0)], with: .automatic)
}
func tunnelMoved(from oldIndex: Int, to newIndex: Int) {
tableView.moveRow(at: IndexPath(row: oldIndex, section: 0), to: IndexPath(row: newIndex, section: 0))
}
func tunnelRemoved(at index: Int, tunnel: TunnelContainer) {
tableView.deleteRows(at: [IndexPath(row: index, section: 0)], with: .automatic)
centeredAddButton.isHidden = tunnelsManager?.numberOfTunnels() ?? 0 > 0
if detailDisplayedTunnel == tunnel, let splitViewController = splitViewController {
if splitViewController.isCollapsed != false {
(splitViewController.viewControllers[0] as? UINavigationController)?.popToRootViewController(animated: false)
} else {
let detailVC = UIViewController()
if #available(iOS 13.0, *) {
detailVC.view.backgroundColor = .systemBackground
} else {
detailVC.view.backgroundColor = .white
}
let detailNC = UINavigationController(rootViewController: detailVC)
splitViewController.showDetailViewController(detailNC, sender: self)
}
detailDisplayedTunnel = nil
if let presentedNavController = self.presentedViewController as? UINavigationController, presentedNavController.viewControllers.first is TunnelEditTableViewController {
self.presentedViewController?.dismiss(animated: false, completion: nil)
}
}
}
}
extension UISplitViewController {
func showDetailViewController(_ viewController: UIViewController, sender: Any?, animated: Bool) {
if animated {
showDetailViewController(viewController, sender: sender)
} else {
UIView.performWithoutAnimation {
showDetailViewController(viewController, sender: sender)
}
}
}
}