vds_ios/VDS/Components/TextFields/InputField/InputField.swift
Matt Bruce 0af79c97b7 refactored to helpertext to the right
Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
2024-05-10 10:08:10 -05:00

368 lines
12 KiB
Swift

//
// TextEntryField.swift
// VDS
//
// Created by Matt Bruce on 10/3/22.
//
import Foundation
import UIKit
import VDSTokens
import Combine
/// An input field is an input wherein a customer enters information. They typically appear in forms.
/// Specialized input fields capture credit card numbers, inline actions, passwords, phone numbers,
/// dates and security codes in their correct formats.
@objc(VDSInputField)
open class InputField: EntryFieldBase {
//--------------------------------------------------
// MARK: - Initializers
//--------------------------------------------------
required public init() {
super.init(frame: .zero)
}
public override init(frame: CGRect) {
super.init(frame: .zero)
}
public required init?(coder: NSCoder) {
super.init(coder: coder)
}
//--------------------------------------------------
// MARK: - Private Properties
//--------------------------------------------------
internal var minWidthConstraint: NSLayoutConstraint?
internal var titleLabelWidthConstraint: NSLayoutConstraint?
//--------------------------------------------------
// MARK: - Public FieldType Properties
//--------------------------------------------------
/// Representing the type of input.
open var fieldType: FieldType = .text { didSet { setNeedsUpdate() } }
//--------------------------------------------------
// MARK: - CreditCard/SecurityCode
//--------------------------------------------------
open var cardType: CreditCardType = .generic { didSet { setNeedsUpdate() } }
//--------------------------------------------------
// MARK: - Password
//--------------------------------------------------
/// This is the text that will be displayed when the password is unmasked.
open var hidePasswordButtonText: String = "Hide" { didSet { setNeedsUpdate() } }
/// This is the text that will be displayed when the password is masked.
open var showPasswordButtonText: String = "Show" { didSet { setNeedsUpdate() } }
//--------------------------------------------------
// MARK: - Date
//--------------------------------------------------
/// Date Format used when using the FieldType 'Date'.
open var dateFormat: DateFormat = .mmddyy { didSet { setNeedsUpdate() } }
//--------------------------------------------------
// MARK: - Public Properties
//--------------------------------------------------
/// Label to render the successText.
open var successLabel = Label().with {
$0.setContentCompressionResistancePriority(.required, for: .vertical)
$0.textStyle = .bodySmall
}
/// UITextField shown in the InputField.
open var textField = TextField().with {
$0.translatesAutoresizingMaskIntoConstraints = false
$0.font = TextStyle.bodyLarge.font
}
/// Color configuration for the textField.
open var textFieldTextColorConfiguration: AnyColorable = ViewColorConfiguration().with {
$0.setSurfaceColors(VDSColor.interactiveDisabledOnlight, VDSColor.interactiveDisabledOndark, forDisabled: true)
$0.setSurfaceColors(VDSColor.elementsPrimaryOnlight, VDSColor.elementsPrimaryOndark, forDisabled: false)
}.eraseToAnyColorable()
open var leftImageView = UIImageView().with {
$0.height(21)
$0.width(32)
$0.isAccessibilityElement = false
$0.translatesAutoresizingMaskIntoConstraints = false
$0.contentMode = .scaleAspectFill
$0.clipsToBounds = true
}
open var actionTextLink = TextLink().with { $0.contentEdgeInsets = .top(-2) }
open var actionTextLinkModel: TextLinkModel? { didSet { setNeedsUpdate() } }
/// The text of this TextField.
open var text: String? {
get { textField.text }
set {
textField.text = newValue
setNeedsUpdate()
}
}
/// Value for the textField
open override var value: String? {
if let value = fieldType.handler().value {
return value
} else {
return textField.text
}
}
var _showError: Bool = false
/// Whether not to show the error.
open override var showError: Bool {
get { _showError }
set {
if !showSuccess && _showError != newValue {
_showError = newValue
setNeedsUpdate()
}
}
}
var _showSuccess: Bool = false
/// Whether not to show the success.
open var showSuccess: Bool {
get { _showSuccess }
set {
if !showError && _showSuccess != newValue {
_showSuccess = newValue
setNeedsUpdate()
}
}
}
/// Override UIControl state to add the .error state if showSuccess is true and if showError is true.
open override var state: UIControl.State {
get {
var state = super.state
if showSuccess {
state.insert(.success)
}
if textField.isFirstResponder {
state.insert(.focused)
}
return state
}
}
/// If given, this will be shown if showSuccess if true.
open var successText: String? { didSet { setNeedsUpdate() } }
/// Determines the placement of the helper text.
open var helperTextPlacement: HelperTextPlacement = .bottom { didSet { setNeedsUpdate() } }
//--------------------------------------------------
// MARK: - Overrides
//--------------------------------------------------
/// Called once when a view is initialized and is used to Setup additional UI or other constants and configurations.
open override func setup() {
super.setup()
titleLabel.setContentCompressionResistancePriority(.required, for: .horizontal)
titleLabel.setContentHuggingPriority(.required, for: .horizontal)
titleLabelWidthConstraint = titleLabel.width(constant: 0)
minWidthConstraint = containerView.widthAnchor.constraint(greaterThanOrEqualToConstant: 0)
minWidthConstraint?.isActive = true
textField.heightAnchor.constraint(equalToConstant: 20).isActive = true
textField.delegate = self
textField
.textPublisher
.sink { [weak self] newText in
guard let self else { return }
print("textPublisher newText: \(newText)")
if self.fieldType.handler().validateOnChange {
self.validate()
}
self.sendActions(for: .valueChanged)
}.store(in: &subscribers)
stackView.addArrangedSubview(successLabel)
stackView.setCustomSpacing(8, after: successLabel)
fieldStackView.addArrangedSubview(actionTextLink)
successLabel.textColorConfiguration = primaryColorConfiguration.eraseToAnyColorable()
backgroundColorConfiguration.setSurfaceColors(VDSColor.feedbackSuccessBackgroundOnlight, VDSColor.feedbackSuccessBackgroundOndark, forState: .success)
borderColorConfiguration.setSurfaceColors(VDSColor.feedbackSuccessOnlight, VDSColor.feedbackSuccessOndark, forState: .success)
}
open override func getFieldContainer() -> UIView {
// stackview for controls in EntryFieldBase.controlContainerView
let stackView = UIStackView().with {
$0.translatesAutoresizingMaskIntoConstraints = false
$0.axis = .horizontal
$0.spacing = VDSLayout.space3X
}
stackView.addArrangedSubview(leftImageView)
stackView.addArrangedSubview(textField)
return stackView
}
/// Resets to default settings.
open override func reset() {
super.reset()
textField.text = ""
successLabel.reset()
successLabel.textStyle = .bodySmall
fieldType = .text
showSuccess = false
successText = nil
helperTextPlacement = .bottom
}
/// Used to make changes to the View based off a change events or from local properties.
open override func updateView() {
//update fieldType first
fieldType.handler().updateView(self)
super.updateView()
textField.isEnabled = isEnabled
textField.textColor = textFieldTextColorConfiguration.getColor(self)
}
open override func updateErrorLabel() {
super.updateErrorLabel()
//show error or success
if showError, let _ = errorText {
successLabel.isHidden = true
} else if showSuccess, let successText {
successLabel.text = successText
successLabel.surface = surface
successLabel.isEnabled = isEnabled
successLabel.isHidden = false
errorLabel.isHidden = true
statusIcon.name = .checkmarkAlt
statusIcon.color = VDSColor.paletteBlack
statusIcon.surface = surface
statusIcon.isHidden = !isEnabled
} else {
successLabel.isHidden = true
}
}
open override func updateHelperLabel(){
//remove first
helperLabel.removeFromSuperview()
super.updateHelperLabel()
//set the helper label position
if helperText != nil {
if helperTextPlacement == .right {
middleStackView.spacing = 12
middleStackView.distribution = .fillEqually
middleStackView.addArrangedSubview(helperLabel)
} else {
middleStackView.spacing = 0
middleStackView.distribution = .fill
bottomContainerStackView.addArrangedSubview(helperLabel)
}
}
}
override func updateRules() {
super.updateRules()
fieldType.handler().appendRules(self)
}
/// Used to update any Accessibility properties.
open override func updateAccessibility() {
super.updateAccessibility()
textField.accessibilityLabel = showError ? "error" : nil
}
open override var accessibilityElements: [Any]? {
get {
var elements = [Any]()
elements.append(contentsOf: [titleLabel, textField])
if showError {
elements.append(statusIcon)
if let errorText, !errorText.isEmpty {
elements.append(errorLabel)
}
} else if showSuccess, let successText, !successText.isEmpty {
elements.append(successLabel)
}
if let helperText, !helperText.isEmpty {
elements.append(helperLabel)
}
return elements
}
set { super.accessibilityElements = newValue }
}
open override func layoutSubviews() {
super.layoutSubviews()
titleLabelWidthConstraint?.constant = containerView.frame.width
titleLabelWidthConstraint?.isActive = helperTextPlacement == .right
}
open override var canBecomeFirstResponder: Bool { true }
open override func resignFirstResponder() -> Bool {
if textField.isFirstResponder {
textField.resignFirstResponder()
}
return super.resignFirstResponder()
}
}
extension InputField: UITextFieldDelegate {
public func textFieldDidBeginEditing(_ textField: UITextField) {
fieldType.handler().textFieldDidBeginEditing(self, textField: textField)
setNeedsUpdate()
}
public func textFieldDidEndEditing(_ textField: UITextField) {
fieldType.handler().textFieldDidEndEditing(self, textField: textField)
validate()
}
public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
return fieldType.handler().textField(self, textField: textField, shouldChangeCharactersIn: range, replacementString: string)
}
}
extension String {
internal static func format(_ value: String, indices: [Int], with separator: String) -> String {
var formattedString = ""
var currentIndex = value.startIndex
for index in 0..<value.count {
if indices.contains(index) {
formattedString.append(separator)
}
formattedString.append(value[currentIndex])
currentIndex = value.index(after: currentIndex)
}
return formattedString
}
}