Swiftgram/TelegramUI/AuthorizationSequenceCountrySelectionController.swift
2017-09-11 00:07:59 +03:00

337 lines
12 KiB
Swift

import Foundation
import Display
import AsyncDisplayKit
private func loadCountryNamesAndCodes() -> [(String, String, Int)] {
guard let filePath = frameworkBundle.path(forResource: "PhoneCountries", ofType: "txt") else {
return []
}
guard let stringData = try? Data(contentsOf: URL(fileURLWithPath: filePath)) else {
return []
}
guard let data = String(data: stringData, encoding: .utf8) else {
return []
}
let delimiter = ";"
let endOfLine = "\n"
var result: [(String, String, Int)] = []
var currentLocation = data.startIndex
while true {
guard let codeRange = data.range(of: delimiter, options: [], range: currentLocation ..< data.endIndex) else {
break
}
let countryCode = data.substring(with: currentLocation ..< codeRange.lowerBound)
guard let idRange = data.range(of: delimiter, options: [], range: codeRange.upperBound ..< data.endIndex) else {
break
}
let countryId = data.substring(with: codeRange.upperBound ..< idRange.lowerBound)
let maybeNameRange = data.range(of: endOfLine, options: [], range: idRange.upperBound ..< data.endIndex)
let nameRangeIndex = maybeNameRange?.lowerBound ?? data.endIndex
var countryName = data.substring(with: idRange.upperBound ..< nameRangeIndex)
if countryName.hasSuffix("\r") {
countryName = countryName.substring(to: countryName.index(before: countryName.endIndex))
}
if let countryCodeInt = Int(countryCode) {
result.append((countryName, countryId, countryCodeInt))
}
if let maybeNameRange = maybeNameRange {
currentLocation = maybeNameRange.upperBound
} else {
break
}
}
return result
}
private let countryNamesAndCodes: [(String, String, Int)] = loadCountryNamesAndCodes()
private final class InnerCoutrySearchResultsController: UIViewController, UITableViewDelegate, UITableViewDataSource {
private let displayCodes: Bool
private let tableView: UITableView
var searchResults: [(String, String, Int)] = [] {
didSet {
self.tableView.reloadData()
}
}
var itemSelected: (((String, String, Int)) -> Void)?
init(displayCodes: Bool) {
self.displayCodes = displayCodes
self.tableView = UITableView(frame: CGRect(), style: .plain)
super.init(nibName: nil, bundle: nil)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = .white
self.view.addSubview(self.tableView)
self.tableView.frame = self.view.bounds
self.tableView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
self.tableView.dataSource = self
self.tableView.delegate = self
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.searchResults.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: UITableViewCell
if let currentCell = tableView.dequeueReusableCell(withIdentifier: "CountryCell") {
cell = currentCell
} else {
cell = UITableViewCell()
let label = UILabel()
label.font = Font.medium(17.0)
cell.accessoryView = label
}
cell.textLabel?.text = self.searchResults[indexPath.row].0
if self.displayCodes, let label = cell.accessoryView as? UILabel {
label.text = "+\(self.searchResults[indexPath.row].1)"
label.sizeToFit()
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.itemSelected?(self.searchResults[indexPath.row])
}
}
private final class InnerCountrySelectionController: UIViewController, UITableViewDelegate, UITableViewDataSource, UISearchResultsUpdating, UISearchBarDelegate {
private let displayCodes: Bool
private let tableView: UITableView
private let sections: [(String, [(String, String, Int)])]
private let sectionTitles: [String]
private var searchController: UISearchController!
private var searchResultsController: InnerCoutrySearchResultsController!
var dismiss: (() -> Void)?
var itemSelected: (((String, String, Int)) -> Void)?
init(displayCodes: Bool) {
self.displayCodes = displayCodes
self.tableView = UITableView(frame: CGRect(), style: .plain)
var sections: [(String, [(String, String, Int)])] = []
for (name, id, code) in countryNamesAndCodes.sorted(by: { lhs, rhs in
return lhs.0 < rhs.0
}) {
let title = name.substring(to: name.index(after: name.startIndex)).uppercased()
if sections.isEmpty || sections[sections.count - 1].0 != title {
sections.append((title, []))
}
sections[sections.count - 1].1.append((name, id, code))
}
self.sections = sections
var sectionTitles = sections.map { $0.0 }
sectionTitles.insert(UITableViewIndexSearch, at: 0)
self.sectionTitles = sectionTitles
super.init(nibName: nil, bundle: nil)
self.title = "Select Country"
self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(self.cancelPressed))
self.definesPresentationContext = true
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = .white
self.searchResultsController = InnerCoutrySearchResultsController(displayCodes: self.displayCodes)
self.searchResultsController.itemSelected = { [weak self] item in
self?.itemSelected?(item)
}
self.searchController = UISearchController(searchResultsController: self.searchResultsController)
self.searchController.searchResultsUpdater = self
self.searchController.dimsBackgroundDuringPresentation = true
self.searchController.searchBar.delegate = self
self.view.addSubview(self.tableView)
self.tableView.tableHeaderView = self.searchController.searchBar
self.tableView.dataSource = self
self.tableView.delegate = self
self.tableView.frame = self.view.bounds
self.view.addSubview(self.tableView)
}
func numberOfSections(in tableView: UITableView) -> Int {
return self.sections.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.sections[section].1.count
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sections[section].0
}
func sectionIndexTitles(for tableView: UITableView) -> [String]? {
return self.sectionTitles
}
func tableView(_ tableView: UITableView, sectionForSectionIndexTitle title: String, at index: Int) -> Int {
if index == 0 {
return 0
} else {
return max(0, index - 1)
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell: UITableViewCell
if let currentCell = tableView.dequeueReusableCell(withIdentifier: "CountryCell") {
cell = currentCell
} else {
cell = UITableViewCell()
let label = UILabel()
label.font = Font.medium(17.0)
cell.accessoryView = label
}
cell.textLabel?.text = self.sections[indexPath.section].1[indexPath.row].0
if self.displayCodes, let label = cell.accessoryView as? UILabel {
label.text = "+\(self.sections[indexPath.section].1[indexPath.row].1)"
label.sizeToFit()
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
self.itemSelected?(self.sections[indexPath.section].1[indexPath.row])
}
func updateSearchResults(for searchController: UISearchController) {
guard let normalizedQuery = searchController.searchBar.text?.lowercased() else {
self.searchResultsController.searchResults = []
return
}
var results: [(String, String, Int)] = []
for (_, items) in self.sections {
for item in items {
if item.0.lowercased().hasPrefix(normalizedQuery) {
results.append(item)
}
}
}
self.searchResultsController.searchResults = results
}
@objc func cancelPressed() {
self.dismiss?()
}
}
final class AuthorizationSequenceCountrySelectionController: ViewController {
static func lookupCountryNameById(_ id: String) -> String? {
for (name, itemId, _) in countryNamesAndCodes {
if id == itemId {
return name
}
}
return nil
}
private var controllerNode: AuthorizationSequenceCountrySelectionControllerNode {
return self.displayNode as! AuthorizationSequenceCountrySelectionControllerNode
}
private let innerNavigationController: UINavigationController
private let innerController: InnerCountrySelectionController
var completeWithCountryCode: ((Int, String) -> Void)?
init(displayCodes: Bool = true) {
self.innerController = InnerCountrySelectionController(displayCodes: displayCodes)
self.innerNavigationController = UINavigationController(rootViewController: self.innerController)
super.init(navigationBarTheme: nil)
self.innerController.dismiss = { [weak self] in
self?.cancelPressed()
}
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override public func loadDisplayNode() {
self.displayNode = AuthorizationSequenceCountrySelectionControllerNode()
self.displayNodeDidLoad()
self.innerNavigationController.willMove(toParentViewController: self)
self.addChildViewController(self.innerNavigationController)
self.displayNode.view.addSubview(self.innerNavigationController.view)
self.innerNavigationController.didMove(toParentViewController: self)
self.innerController.itemSelected = { [weak self] args in
let (_, countryId, code) = args
self?.completeWithCountryCode?(code, countryId)
self?.controllerNode.animateOut()
}
self.controllerNode.dismiss = { [weak self] in
self?.presentingViewController?.dismiss(animated: true, completion: nil)
}
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
self.innerNavigationController.viewWillAppear(false)
self.innerNavigationController.viewDidAppear(false)
self.controllerNode.animateIn()
}
override func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
super.containerLayoutUpdated(layout, transition: transition)
self.innerNavigationController.view.frame = CGRect(origin: CGPoint(), size: layout.size)
self.innerController.view.frame = CGRect(origin: CGPoint(), size: layout.size)
//self.controllerNode.containerLayoutUpdated(layout, navigationBarHeight: self.navigationBar.frame.maxY, transition: transition)
}
private func cancelPressed() {
self.controllerNode.animateOut()
}
}