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// SPDX-License-Identifier: MIT
// Copyright © 2018-2019 WireGuard LLC. All Rights Reserved.
import UIKit
protocol SSIDOptionEditTableViewControllerDelegate: class {
func ssidOptionSaved(option: ActivateOnDemandViewModel.OnDemandSSIDOption, ssids: [String])
}
class SSIDOptionEditTableViewController: UITableViewController {
private enum Section {
case ssidOption
case selectedSSIDs
case addSSIDs
}
weak var delegate: SSIDOptionEditTableViewControllerDelegate?
private var sections = [Section]()
let ssidOptionFields: [ActivateOnDemandViewModel.OnDemandSSIDOption] = [
.anySSID,
.onlySpecificSSIDs,
.exceptSpecificSSIDs
]
var selectedOption: ActivateOnDemandViewModel.OnDemandSSIDOption
var selectedSSIDs: [String]
init(option: ActivateOnDemandViewModel.OnDemandSSIDOption, ssids: [String]) {
selectedOption = option
selectedSSIDs = ssids
super.init(style: .grouped)
loadSections()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
title = tr("tunnelOnDemandSelectionViewTitle")
tableView.estimatedRowHeight = 44
tableView.rowHeight = UITableView.automaticDimension
tableView.register(CheckmarkCell.self)
tableView.register(EditableTextCell.self)
tableView.register(TextCell.self)
tableView.isEditing = true
tableView.allowsSelectionDuringEditing = true
}
func loadSections() {
sections.removeAll()
sections.append(.ssidOption)
if selectedOption != .anySSID {
if !selectedSSIDs.isEmpty {
sections.append(.selectedSSIDs)
}
sections.append(.addSSIDs)
}
}
override func viewWillDisappear(_ animated: Bool) {
delegate?.ssidOptionSaved(option: selectedOption, ssids: selectedSSIDs)
}
}
extension SSIDOptionEditTableViewController {
override func numberOfSections(in tableView: UITableView) -> Int {
return sections.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch sections[section] {
case .ssidOption:
return ssidOptionFields.count
case .selectedSSIDs:
return selectedSSIDs.count
case .addSSIDs:
return 1
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
switch sections[indexPath.section] {
case .ssidOption:
return ssidOptionCell(for: tableView, at: indexPath)
case .selectedSSIDs:
return selectedSSIDCell(for: tableView, at: indexPath)
case .addSSIDs:
return addSSIDCell(for: tableView, at: indexPath)
}
}
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
switch sections[indexPath.section] {
case .ssidOption:
return false
case .selectedSSIDs, .addSSIDs:
return true
}
}
override func tableView(_ tableView: UITableView, editingStyleForRowAt indexPath: IndexPath) -> UITableViewCell.EditingStyle {
switch sections[indexPath.section] {
case .ssidOption:
return .none
case .selectedSSIDs:
return .delete
case .addSSIDs:
return .insert
}
}
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
switch sections[section] {
case .ssidOption:
return nil
case .selectedSSIDs:
return tr("tunnelOnDemandSectionTitleSelectedSSIDs")
case .addSSIDs:
return tr("tunnelOnDemandSectionTitleAddSSIDs")
}
}
private func ssidOptionCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
let field = ssidOptionFields[indexPath.row]
let cell: CheckmarkCell = tableView.dequeueReusableCell(for: indexPath)
cell.message = field.localizedUIString
cell.isChecked = selectedOption == field
cell.isEditing = false
return cell
}
private func selectedSSIDCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
let cell: EditableTextCell = tableView.dequeueReusableCell(for: indexPath)
cell.message = selectedSSIDs[indexPath.row]
cell.isEditing = true
cell.onValueBeingEdited = { [weak self, weak cell] text in
guard let self = self, let cell = cell else { return }
if let row = self.tableView.indexPath(for: cell)?.row {
self.selectedSSIDs[row] = text
}
}
return cell
}
private func addSSIDCell(for tableView: UITableView, at indexPath: IndexPath) -> UITableViewCell {
let cell: TextCell = tableView.dequeueReusableCell(for: indexPath)
cell.message = tr("tunnelOnDemandAddMessageAddNew")
cell.isEditing = true
return cell
}
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
switch sections[indexPath.section] {
case .ssidOption:
assertionFailure()
case .selectedSSIDs:
assert(editingStyle == .delete)
selectedSSIDs.remove(at: indexPath.row)
loadSections()
let hasSelectedSSIDsSection = sections.contains(.selectedSSIDs)
if hasSelectedSSIDsSection {
tableView.deleteRows(at: [indexPath], with: .automatic)
} else {
tableView.deleteSections(IndexSet(integer: indexPath.section), with: .automatic)
}
case .addSSIDs:
assert(editingStyle == .insert)
let hasSelectedSSIDsSection = sections.contains(.selectedSSIDs)
selectedSSIDs.append("")
loadSections()
let selectedSSIDsSection = sections.firstIndex(of: .selectedSSIDs)!
let indexPath = IndexPath(row: selectedSSIDs.count - 1, section: selectedSSIDsSection)
if !hasSelectedSSIDsSection {
tableView.insertSections(IndexSet(integer: selectedSSIDsSection), with: .automatic)
} else {
tableView.insertRows(at: [indexPath], with: .automatic)
}
if let selectedSSIDCell = tableView.cellForRow(at: indexPath) as? EditableTextCell {
selectedSSIDCell.beginEditing()
}
}
}
func lastSelectedSSIDItemIndexPath() -> IndexPath? {
guard !selectedSSIDs.isEmpty else { return nil }
guard let section = sections.firstIndex(of: .selectedSSIDs) else { return nil }
return IndexPath(row: selectedSSIDs.count - 1, section: section)
}
}
extension SSIDOptionEditTableViewController {
override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
switch sections[indexPath.section] {
case .ssidOption:
return indexPath
case .selectedSSIDs, .addSSIDs:
return nil
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
switch sections[indexPath.section] {
case .ssidOption:
let previousOption = selectedOption
let previousSectionCount = sections.count
selectedOption = ssidOptionFields[indexPath.row]
loadSections()
if previousOption == .anySSID {
let indexSet = selectedSSIDs.isEmpty ? IndexSet(integer: 1) : IndexSet(1 ... 2)
tableView.insertSections(indexSet, with: .fade)
}
if selectedOption == .anySSID {
let indexSet = previousSectionCount == 2 ? IndexSet(integer: 1) : IndexSet(1 ... 2)
tableView.deleteSections(indexSet, with: .fade)
}
tableView.reloadSections(IndexSet(integer: indexPath.section), with: .none)
case .selectedSSIDs, .addSSIDs:
assertionFailure()
}
}
}
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