vds_ios/VDS/Components/RadioButton/RadioButton.swift
Matt Bruce 61c5d5adf8 convert to kyle code for default handlers
Signed-off-by: Matt Bruce <matt.bruce@verizon.com>
2022-08-31 16:12:08 -05:00

368 lines
13 KiB
Swift

//
// RadioButton.swift
// VDS
//
// Created by Matt Bruce on 7/22/22.
//
import Foundation
import UIKit
import VDSColorTokens
import VDSFormControlsTokens
public class RadioButton: RadioButtonBase<DefaultRadioButtonModel>{ }
public class SoloRadioButton: RadioButtonBase<DefaultRadioButtonModel>{
public override func initialSetup() {
super.initialSetup()
publisher(for: .touchUpInside)
.sink { control in
control.toggle()
}.store(in: &subscribers)
}
}
open class RadioButtonBase<ModelType: RadioButtonModel>: Control<ModelType>, Changable {
//--------------------------------------------------
// MARK: - Private Properties
//--------------------------------------------------
private var mainStackView: UIStackView = {
return UIStackView().with {
$0.translatesAutoresizingMaskIntoConstraints = false
$0.alignment = .top
$0.axis = .vertical
}
}()
private var selectorStackView: UIStackView = {
return UIStackView().with {
$0.translatesAutoresizingMaskIntoConstraints = false
$0.alignment = .top
$0.axis = .horizontal
}
}()
private var selectorLabelStackView: UIStackView = {
return UIStackView().with {
$0.translatesAutoresizingMaskIntoConstraints = false
$0.axis = .vertical
}
}()
private var primaryLabel = Label()
private var secondaryLabel = Label()
private var errorLabel = Label()
//--------------------------------------------------
// MARK: - Public Properties
//--------------------------------------------------
public var selectorView: UIView = {
return UIView().with {
$0.translatesAutoresizingMaskIntoConstraints = false
}
}()
public var onChange: Blocks.ActionBlock?
//can't bind to @Proxy
open override var isSelected: Bool {
get { model.selected }
set {
if model.selected != newValue {
model.selected = newValue
}
}
}
@Proxy(\.model.labelText)
open var labelText: String?
@Proxy(\.model.childText)
open var childText: String?
@Proxy(\.model.hasError)
open var hasError: Bool
@Proxy(\.model.errorText)
open var errorText: String?
@Proxy(\.model.inputId)
open var inputId: String?
@Proxy(\.model.value)
open var value: AnyHashable?
@Proxy(\.model.dataAnalyticsTrack)
open var dataAnalyticsTrack: String?
@Proxy(\.model.dataClickStream)
open var dataClickStream: String?
@Proxy(\.model.dataTrack)
open var dataTrack: String?
@Proxy(\.model.accessibilityHintEnabled)
open var accessibilityHintEnabled: String?
@Proxy(\.model.accessibilityHintDisabled)
open var accessibilityHintDisabled: String?
@Proxy(\.model.accessibilityValueEnabled)
open var accessibilityValueEnabled: String?
@Proxy(\.model.accessibilityValueDisabled)
open var accessibilityValueDisabled: String?
@Proxy(\.model.accessibilityLabelEnabled)
open var accessibilityLabelEnabled: String?
@Proxy(\.model.accessibilityLabelDisabled)
open var accessibilityLabelDisabled: String?
//--------------------------------------------------
// MARK: - Constraints
//--------------------------------------------------
private var selectorHeightConstraint: NSLayoutConstraint?
private var selectorWidthConstraint: NSLayoutConstraint?
//functions
//--------------------------------------------------
// MARK: - Lifecycle
//--------------------------------------------------
open override func setup() {
super.setup()
//add tapGesture to self
publisher(for: UITapGestureRecognizer()).sink { [weak self] _ in
self?.sendActions(for: .touchUpInside)
}.store(in: &subscribers)
isAccessibilityElement = true
accessibilityTraits = .button
addSubview(mainStackView)
mainStackView.addArrangedSubview(selectorStackView)
mainStackView.addArrangedSubview(errorLabel)
selectorStackView.addArrangedSubview(selectorView)
selectorStackView.addArrangedSubview(selectorLabelStackView)
selectorLabelStackView.addArrangedSubview(primaryLabel)
selectorLabelStackView.addArrangedSubview(secondaryLabel)
let selectorSize = getSelectorSize()
selectorHeightConstraint = selectorView.heightAnchor.constraint(equalToConstant: selectorSize.height)
selectorHeightConstraint?.isActive = true
selectorWidthConstraint = selectorView.widthAnchor.constraint(equalToConstant: selectorSize.width)
selectorWidthConstraint?.isActive = true
updateSelector(model)
mainStackView.topAnchor.constraint(equalTo: topAnchor).isActive = true
mainStackView.leadingAnchor.constraint(equalTo: leadingAnchor).isActive = true
mainStackView.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
mainStackView.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true
}
func updateLabels(_ viewModel: ModelType) {
//deal with labels
if viewModel.shouldShowLabels {
//add the stackview to hold the 2 labels
//top label
if let labelModel = viewModel.labelModel {
primaryLabel.set(with: labelModel)
primaryLabel.isHidden = false
} else {
primaryLabel.isHidden = true
}
//bottom label
if let childModel = viewModel.childModel {
secondaryLabel.set(with: childModel)
secondaryLabel.isHidden = false
} else {
secondaryLabel.isHidden = true
}
selectorStackView.spacing = 12
selectorLabelStackView.spacing = 4
selectorLabelStackView.isHidden = false
} else {
selectorStackView.spacing = 0
selectorLabelStackView.spacing = 0
selectorLabelStackView.isHidden = true
}
//either add/remove the error from the main stack
if let errorModel = model.errorModel, model.shouldShowError {
errorLabel.set(with: errorModel)
mainStackView.spacing = 8
errorLabel.isHidden = false
} else {
mainStackView.spacing = 0
errorLabel.isHidden = true
}
}
public override func reset() {
super.reset()
updateSelector(model)
setAccessibilityLabel()
onChange = nil
}
/// This will checkbox the state of the Selector and execute the actionBlock if provided.
open func toggle() {
guard !isSelected else { return }
//removed error
if hasError && isSelected == false {
hasError.toggle()
}
isSelected.toggle()
sendActions(for: .valueChanged)
onChange?()
}
//--------------------------------------------------
// MARK: - State
//--------------------------------------------------
/// Follow the SwiftUI View paradigm
/// - Parameter viewModel: state
open override func shouldUpdateView(viewModel: ModelType) -> Bool {
let update = viewModel.selected != model.selected
|| viewModel.labelText != model.labelText
|| viewModel.childText != model.childText
|| viewModel.hasError != model.hasError
|| viewModel.surface != model.surface
|| viewModel.disabled != model.disabled
return update
}
open override func updateView(viewModel: ModelType) {
let enabled = !viewModel.disabled
updateLabels(viewModel)
updateSelector(viewModel)
setAccessibilityHint(enabled)
setAccessibilityValue(viewModel.selected)
setAccessibilityLabel(viewModel.selected)
setNeedsLayout()
layoutIfNeeded()
}
//--------------------------------------------------
// MARK: - Configuration Properties
//--------------------------------------------------
public let radioButtonSize = CGSize(width: 20, height: 20)
public let radioButtonSelectedSize = CGSize(width: 10, height: 10)
private var radioButtonBackgroundColorConfiguration: RadioButtonErrorColorConfiguration = {
return RadioButtonErrorColorConfiguration().with {
//error doesn't care enabled/disable
$0.error.forTrue.lightColor = VDSColor.elementsPrimaryOnlight
$0.error.forTrue.darkColor = VDSColor.elementsPrimaryOndark
$0.error.forFalse.lightColor = VDSColor.feedbackErrorBackgroundOnlight
$0.error.forFalse.darkColor = VDSColor.feedbackErrorBackgroundOndark
}
}()
private var radioButtonBorderColorConfiguration: RadioButtonErrorColorConfiguration = {
return RadioButtonErrorColorConfiguration().with {
$0.forTrue.enabled.lightColor = VDSColor.elementsPrimaryOnlight
$0.forTrue.enabled.darkColor = VDSColor.elementsPrimaryOndark
$0.forFalse.enabled.lightColor = VDSFormControlsColor.borderOnlight
$0.forFalse.enabled.darkColor = VDSFormControlsColor.borderOndark
$0.forTrue.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.forTrue.disabled.darkColor = VDSColor.interactiveDisabledOndark
$0.forFalse.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.forFalse.disabled.darkColor = VDSColor.interactiveDisabledOndark
//error doesn't care enabled/disable
$0.error.forTrue.lightColor = VDSColor.elementsPrimaryOnlight
$0.error.forTrue.darkColor = VDSColor.elementsPrimaryOndark
$0.error.forFalse.lightColor = VDSColor.feedbackErrorOnlight
$0.error.forFalse.darkColor = VDSColor.feedbackErrorOndark
}
}()
private var radioButtonCheckColorConfiguration: BinaryDisabledSurfaceColorConfiguration<ModelType> = {
return BinaryDisabledSurfaceColorConfiguration<ModelType>().with {
$0.forTrue.enabled.lightColor = VDSColor.elementsPrimaryOnlight
$0.forTrue.enabled.darkColor = VDSColor.elementsPrimaryOndark
$0.forTrue.disabled.lightColor = VDSColor.interactiveDisabledOnlight
$0.forTrue.disabled.darkColor = VDSColor.interactiveDisabledOndark
}
}()
//--------------------------------------------------
// MARK: - RadioButton View
//--------------------------------------------------
/// Manages the appearance of the radioButton.
private var shapeLayer: CAShapeLayer?
open func getSelectorSize() -> CGSize {
radioButtonSize
}
open func updateSelector(_ viewModel: ModelType) {
if let shapeLayer = shapeLayer, let sublayers = layer.sublayers, sublayers.contains(shapeLayer) {
shapeLayer.removeFromSuperlayer()
self.shapeLayer = nil
}
let bounds = selectorView.bounds
let length = max(bounds.size.height, bounds.size.width)
guard length > 0.0, shapeLayer == nil else { return }
//get the colors
let backgroundColor = radioButtonBackgroundColorConfiguration.getColor(viewModel)
let borderColor = radioButtonBorderColorConfiguration.getColor(viewModel)
let radioSelectedColor = radioButtonCheckColorConfiguration.getColor(viewModel)
selectorView.backgroundColor = backgroundColor
selectorView.layer.borderColor = borderColor.cgColor
selectorView.layer.cornerRadius = selectorView.bounds.width * 0.5
selectorView.layer.borderWidth = 1.0
if shapeLayer == nil {
let selectedBounds = radioButtonSelectedSize
let bezierPath = UIBezierPath(ovalIn: CGRect(x: (bounds.width - selectedBounds.width) / 2,
y: (bounds.height - selectedBounds.height) / 2,
width: radioButtonSelectedSize.width,
height: radioButtonSelectedSize.height))
let shapeLayer = CAShapeLayer()
self.shapeLayer = shapeLayer
shapeLayer.frame = bounds
layer.addSublayer(shapeLayer)
shapeLayer.fillColor = radioSelectedColor.cgColor
shapeLayer.path = bezierPath.cgPath
}
}
//--------------------------------------------------
// MARK: - Color Class Configurations
//--------------------------------------------------
private class RadioButtonErrorColorConfiguration: BinaryDisabledSurfaceColorConfiguration<ModelType> {
public let error = BinarySurfaceColorConfiguration<ModelType>()
override func getColor(_ viewModel: ModelType) -> UIColor {
//only show error is enabled and showError == true
let showErrorColor = !viewModel.disabled && viewModel.hasError
if showErrorColor {
return error.getColor(viewModel)
} else {
return super.getColor(viewModel)
}
}
}
}