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https://github.com/Swiftgram/Telegram-iOS.git
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Refactor PasswordSetupUI, PassportUI, GalleryUI and related modules
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Peter
296
submodules/PhoneInputNode/Sources/PhoneInputNode.swift
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296
submodules/PhoneInputNode/Sources/PhoneInputNode.swift
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import Foundation
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import UIKit
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import AsyncDisplayKit
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import Display
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import TelegramCore
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private func removeDuplicatedPlus(_ text: String?) -> String {
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var result = ""
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if let text = text {
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for c in text {
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if c == "+" {
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if result.isEmpty {
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result += String(c)
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}
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} else {
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result += String(c)
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}
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}
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}
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return result
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}
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private func removePlus(_ text: String?) -> String {
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var result = ""
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if let text = text {
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for c in text {
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if c != "+" {
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result += String(c)
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}
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}
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}
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return result
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}
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private func cleanPhoneNumber(_ text: String?) -> String {
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var cleanNumber = ""
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if let text = text {
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for c in text {
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if c == "+" {
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if cleanNumber.isEmpty {
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cleanNumber += String(c)
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}
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} else if c >= "0" && c <= "9" {
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cleanNumber += String(c)
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}
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}
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}
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return cleanNumber
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}
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private func cleanPrefix(_ text: String) -> String {
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var result = ""
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var checked = false
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for c in text {
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if c != " " {
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checked = true
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}
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if checked {
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result += String(c)
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}
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}
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return result
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}
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private func cleanSuffix(_ text: String) -> String {
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var result = ""
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var checked = false
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for c in text.reversed() {
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if c != " " {
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checked = true
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}
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if checked {
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result = String(c) + result
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}
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}
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return result
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}
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public final class PhoneInputNode: ASDisplayNode, UITextFieldDelegate {
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public let countryCodeField: TextFieldNode
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public let numberField: TextFieldNode
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public var previousCountryCodeText = "+"
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public var previousNumberText = ""
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public var enableEditing: Bool = true
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public var number: String {
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get {
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return cleanPhoneNumber((self.countryCodeField.textField.text ?? "") + (self.numberField.textField.text ?? ""))
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} set(value) {
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self.updateNumber(value)
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}
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}
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public var countryCodeText: String {
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get {
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return self.countryCodeField.textField.text ?? ""
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} set(value) {
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if self.countryCodeField.textField.text != value {
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self.countryCodeField.textField.text = value
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self.countryCodeTextChanged(self.countryCodeField.textField)
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}
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}
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}
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public var numberText: String {
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get {
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return self.numberField.textField.text ?? ""
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} set(value) {
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if self.numberField.textField.text != value {
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self.numberField.textField.text = value
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self.numberTextChanged(self.numberField.textField)
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}
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}
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}
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private var countryNameForCode: (Int32, String)?
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public var codeAndNumber: (Int32?, String?, String) {
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get {
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var code: Int32?
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if let text = self.countryCodeField.textField.text, text.count <= 4, let number = Int(removePlus(text)) {
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code = Int32(number)
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var countryName: String?
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if self.countryNameForCode?.0 == code {
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countryName = self.countryNameForCode?.1
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}
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return (code, countryName, cleanPhoneNumber(self.numberField.textField.text))
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} else if let text = self.countryCodeField.textField.text {
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return (nil, nil, cleanPhoneNumber(text + (self.numberField.textField.text ?? "")))
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} else {
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return (nil, nil, "")
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}
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} set(value) {
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let updatedCountryName = self.countryNameForCode?.0 != value.0 || self.countryNameForCode?.1 != value.1
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if let code = value.0, let name = value.1 {
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self.countryNameForCode = (code, name)
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} else {
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self.countryNameForCode = nil
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}
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self.updateNumber("+" + (value.0 == nil ? "" : "\(value.0!)") + value.2, forceNotifyCountryCodeUpdated: updatedCountryName)
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}
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}
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public var countryCodeUpdated: ((String, String?) -> Void)?
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public var countryCodeTextUpdated: ((String) -> Void)?
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public var numberTextUpdated: ((String) -> Void)?
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public var returnAction: (() -> Void)?
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private let phoneFormatter = InteractivePhoneFormatter()
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private let fontSize: CGFloat
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public init(fontSize: CGFloat = 20.0) {
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self.fontSize = fontSize
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self.countryCodeField = TextFieldNode()
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self.countryCodeField.textField.font = Font.regular(fontSize)
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self.countryCodeField.textField.textAlignment = .center
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self.countryCodeField.textField.keyboardType = .numberPad
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self.countryCodeField.textField.returnKeyType = .next
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if #available(iOSApplicationExtension 10.0, iOS 10.0, *) {
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self.countryCodeField.textField.textContentType = .telephoneNumber
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}
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self.numberField = TextFieldNode()
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self.numberField.textField.font = Font.regular(fontSize)
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self.numberField.textField.keyboardType = .numberPad
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if #available(iOSApplicationExtension 10.0, iOS 10.0, *) {
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self.numberField.textField.textContentType = .telephoneNumber
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}
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super.init()
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self.addSubnode(self.countryCodeField)
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self.addSubnode(self.numberField)
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self.numberField.textField.didDeleteBackwardWhileEmpty = { [weak self] in
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self?.countryCodeField.textField.becomeFirstResponder()
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}
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self.countryCodeField.textField.addTarget(self, action: #selector(self.countryCodeTextChanged(_:)), for: .editingChanged)
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self.numberField.textField.addTarget(self, action: #selector(self.numberTextChanged(_:)), for: .editingChanged)
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self.countryCodeField.textField.delegate = self
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self.numberField.textField.delegate = self
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}
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@objc private func countryCodeTextChanged(_ textField: UITextField) {
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self.updateNumberFromTextFields()
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}
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@objc private func numberTextChanged(_ textField: UITextField) {
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self.updateNumberFromTextFields()
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}
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public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
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if !self.enableEditing {
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return false
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}
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if range.length == 0, string.count > 1 {
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self.updateNumber(cleanPhoneNumber(string), tryRestoringInputPosition: false)
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return false
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}
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return true
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}
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public func textFieldShouldReturn(_ textField: UITextField) -> Bool {
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if textField == self.numberField.textField {
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self.returnAction?()
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}
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return false
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}
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private func updateNumberFromTextFields() {
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let inputText = removeDuplicatedPlus(cleanPhoneNumber(self.countryCodeField.textField.text) + cleanPhoneNumber(self.numberField.textField.text))
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self.updateNumber(inputText)
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}
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private func updateNumber(_ inputText: String, tryRestoringInputPosition: Bool = true, forceNotifyCountryCodeUpdated: Bool = false) {
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let (regionPrefix, text) = self.phoneFormatter.updateText(inputText)
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var realRegionPrefix: String
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let numberText: String
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if let regionPrefix = regionPrefix, !regionPrefix.isEmpty, regionPrefix != "+" {
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realRegionPrefix = cleanSuffix(regionPrefix)
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if !realRegionPrefix.hasPrefix("+") {
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realRegionPrefix = "+" + realRegionPrefix
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}
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numberText = cleanPrefix(String(text[realRegionPrefix.endIndex...]))
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} else {
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realRegionPrefix = text
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if !realRegionPrefix.hasPrefix("+") {
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realRegionPrefix = "+" + realRegionPrefix
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}
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numberText = ""
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}
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var focusOnNumber = false
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if realRegionPrefix != self.countryCodeField.textField.text {
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self.countryCodeField.textField.text = realRegionPrefix
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}
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if self.previousCountryCodeText != realRegionPrefix || forceNotifyCountryCodeUpdated {
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self.previousCountryCodeText = realRegionPrefix
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let code = removePlus(realRegionPrefix).trimmingCharacters(in: .whitespaces)
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var countryName: String?
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if self.countryNameForCode?.0 == Int32(code) {
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countryName = self.countryNameForCode?.1
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}
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self.countryCodeUpdated?(code, countryName)
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}
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self.countryCodeTextUpdated?(realRegionPrefix)
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if numberText != self.numberField.textField.text {
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var restorePosition: Int?
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if let text = self.numberField.textField.text, let selectedTextRange = self.numberField.textField.selectedTextRange {
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let initialOffset = self.numberField.textField.offset(from: self.numberField.textField.beginningOfDocument, to: selectedTextRange.start)
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var significantIndex = 0
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for i in 0 ..< min(initialOffset, text.count) {
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let unicodeScalars = String(text[text.index(text.startIndex, offsetBy: i)]).unicodeScalars
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if unicodeScalars.count == 1 && CharacterSet.decimalDigits.contains(unicodeScalars[unicodeScalars.startIndex]) {
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significantIndex += 1
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}
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}
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var restoreIndex = 0
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for i in 0 ..< numberText.count {
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if significantIndex <= 0 {
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break
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}
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let unicodeScalars = String(numberText[numberText.index(numberText.startIndex, offsetBy: i)]).unicodeScalars
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if unicodeScalars.count == 1 && CharacterSet.decimalDigits.contains(unicodeScalars[unicodeScalars.startIndex]) {
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significantIndex -= 1
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}
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restoreIndex += 1
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}
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restorePosition = restoreIndex
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}
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self.numberField.textField.text = numberText
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if tryRestoringInputPosition, let restorePosition = restorePosition {
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if let startPosition = self.numberField.textField.position(from: self.numberField.textField.beginningOfDocument, offset: restorePosition) {
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let selectionRange = self.numberField.textField.textRange(from: startPosition, to: startPosition)
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self.numberField.textField.selectedTextRange = selectionRange
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}
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}
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}
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self.numberTextUpdated?(numberText)
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if self.previousNumberText.isEmpty && !numberText.isEmpty {
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focusOnNumber = true
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}
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self.previousNumberText = numberText
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if focusOnNumber && !self.numberField.textField.isFirstResponder {
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self.numberField.textField.becomeFirstResponder()
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}
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}
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}
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